/* roulang page: index */
:root{
  --primary:#1F6FB2;
  --primary-dark:#15507E;
  --primary-tint:#E8F2FA;
  --bg:#F4F8FC;
  --card:#FFFFFF;
  --border:#E3EDF6;
  --accent:#F26A2E;
  --accent-dark:#D9551C;
  --title:#1D3A4F;
  --text:#506E84;
  --muted:#89A1B4;
  --white:#FFFFFF;
  --footer-bg:#0E263C;
  --success:#2E9E6B;
  --radius-card:14px;
  --radius-poster:18px;
  --radius-btn:8px;
  --radius-input:10px;
  --shadow-card:0 1px 2px rgba(20,50,70,.04),0 10px 24px rgba(31,111,178,.06);
  --shadow-hover:0 14px 36px rgba(31,111,178,.13);
  --shadow-btn:0 10px 22px rgba(242,106,46,.28);
  --container-w:1200px;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input{font-family:inherit;border:none;outline:none}
ul,ol{list-style:none}
.container{
  max-width:var(--container-w);
  margin:0 auto;
  padding:0 24px;
}
section{
  padding:88px 0;
}
.section-title{
  font-size:26px;
  font-weight:700;
  color:var(--title);
  letter-spacing:.01em;
  line-height:1.4;
  margin-bottom:8px;
}
.section-sub{
  font-size:14px;
  color:var(--muted);
  margin-bottom:32px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head .section-title{
  margin-bottom:0;
}
.section-head .section-sub{
  margin-bottom:0;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color .2s;
  white-space:nowrap;
}
.link-more:hover{
  color:var(--primary-dark);
}
.link-more svg{
  transition:transform .2s;
}
.link-more:hover svg{
  transform:translateX(4px);
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  transition:all .22s ease;
  white-space:nowrap;
  line-height:1;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  background:var(--accent-dark);
  transform:translateY(-1px);
  box-shadow:0 14px 28px rgba(242,106,46,.35);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 6px 14px rgba(242,106,46,.25);
}
.btn-primary:focus-visible{
  outline:3px solid rgba(242,106,46,.35);
  outline-offset:2px;
}
.btn-ghost{
  background:transparent;
  border:1px solid #C7DAEA;
  color:var(--primary);
}
.btn-ghost:hover{
  background:var(--primary-tint);
  border-color:var(--primary);
}
.btn-ghost:focus-visible{
  outline:3px solid rgba(31,111,178,.25);
  outline-offset:2px;
}
.btn-light{
  background:#fff;
  color:var(--primary-dark);
  box-shadow:0 8px 20px rgba(0,0,0,.12);
}
.btn-light:hover{
  background:#f0f7ff;
  transform:translateY(-1px);
}

/* Badges */
.badge{
  display:inline-flex;
  align-items:center;
  padding:3px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--primary-tint);
  color:var(--primary);
  line-height:1.6;
  letter-spacing:.02em;
}
.badge-hot{
  background:var(--accent);
  color:#fff;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.6) blur(12px);
  -webkit-backdrop-filter:saturate(1.6) blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s;
}
.site-header.scrolled{
  box-shadow:0 4px 20px rgba(16,44,70,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:40px;
  height:40px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:18px;
  font-weight:800;
  letter-spacing:-.02em;
  box-shadow:0 4px 12px rgba(31,111,178,.25);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.25;
}
.brand-name{
  font-size:18px;
  font-weight:700;
  color:var(--title);
  letter-spacing:.02em;
}
.brand-sub{
  font-size:11px;
  color:var(--muted);
  letter-spacing:.08em;
  font-weight:500;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav a{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:6px;
  font-size:14px;
  font-weight:500;
  color:var(--text);
  transition:all .2s;
  position:relative;
}
.main-nav a:hover{
  color:var(--primary);
  background:var(--primary-tint);
}
.main-nav a.active{
  color:var(--primary);
  font-weight:600;
}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:0;
  height:3px;
  border-radius:3px;
  background:var(--primary);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-cta{
  height:40px;
  padding:0 20px;
  background:var(--accent);
  color:#fff;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:all .22s;
  box-shadow:0 6px 16px rgba(242,106,46,.25);
}
.nav-cta:hover{
  background:var(--accent-dark);
  transform:translateY(-1px);
  box-shadow:0 10px 20px rgba(242,106,46,.32);
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:8px;
  align-items:center;
  justify-content:center;
  color:var(--title);
  transition:background .2s;
}
.nav-toggle:hover{
  background:var(--primary-tint);
}
.nav-toggle svg{
  width:24px;
  height:24px;
}
@media(max-width:992px){
  .main-nav{
    display:none;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .nav-cta{
    display:none;
  }
}
@media(max-width:480px){
  .brand-sub{
    display:none;
  }
  .brand-name{
    font-size:16px;
  }
  .header-inner{
    height:64px;
  }
}

/* Mobile nav panel */
.mobile-nav{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--border);
  padding:12px 16px 20px;
  box-shadow:0 16px 30px rgba(16,44,70,.08);
}
.mobile-nav.open{
  display:block;
}
.mobile-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:13px 8px;
  border-radius:8px;
  font-size:15px;
  font-weight:500;
  color:var(--title);
  border-bottom:1px solid rgba(227,237,246,.6);
}
.mobile-nav a:last-child{
  border-bottom:none;
}
.mobile-nav a.active{
  color:var(--primary);
  background:var(--primary-tint);
}
.mobile-nav a svg{
  width:18px;
  height:18px;
  color:var(--muted);
}
.mobile-nav-cta{
  display:block;
  margin-top:14px;
  text-align:center;
  height:44px;
  background:var(--accent);
  color:#fff;
  border-radius:var(--radius-btn);
  font-weight:600;
  line-height:44px;
  font-size:15px;
}
@media(max-width:992px){
  .mobile-nav.open{
    display:block;
  }
}

/* Hero */
.hero{
  position:relative;
  min-height:560px;
  display:flex;
  align-items:center;
  padding:80px 0;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(14,38,60,.82),rgba(14,38,60,.35) 60%,rgba(14,38,60,.12) 80%);
}
.hero .container{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 380px;
  gap:64px;
  align-items:center;
  width:100%;
}
.hero-content{
  color:#fff;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.25);
  border-radius:999px;
  padding:5px 16px;
  font-size:13px;
  font-weight:500;
  color:#fff;
  letter-spacing:.04em;
  margin-bottom:22px;
  backdrop-filter:blur(4px);
}
.hero-badge .dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 0 3px rgba(46,158,107,.3);
}
.hero h1{
  font-size:38px;
  line-height:1.3;
  font-weight:700;
  color:#fff;
  letter-spacing:.01em;
  margin-bottom:18px;
  max-width:640px;
}
.hero-desc{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.88);
  max-width:520px;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.hero-actions .btn-ghost{
  border-color:rgba(255,255,255,.5);
  color:#fff;
}
.hero-actions .btn-ghost:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
}
.hero-trust{
  display:flex;
  align-items:center;
  gap:18px;
  margin-top:36px;
  font-size:13px;
  color:rgba(255,255,255,.7);
}
.hero-trust .trust-item{
  display:flex;
  align-items:center;
  gap:6px;
}
.hero-trust svg{
  width:16px;
  height:16px;
  color:var(--success);
}
.hero-login-card{
  background:#fff;
  border-radius:18px;
  padding:28px;
  box-shadow:0 20px 50px rgba(14,38,60,.25),0 2px 6px rgba(14,38,60,.08);
  position:relative;
}
.hero-login-card::before{
  content:"";
  position:absolute;
  top:-10px;
  right:24px;
  width:56px;
  height:56px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F26A2E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 2l2.4 7.4H22l-6 4.6 2.3 7.4-6.3-4.5-6.3 4.5L8 14l-6-4.6h7.6z'/%3E%3C/svg%3E") center/cover no-repeat;
}
.login-card-title{
  font-size:20px;
  font-weight:700;
  color:var(--title);
  margin-bottom:6px;
}
.login-card-sub{
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
}
.login-form label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--title);
  margin-bottom:6px;
}
.login-form input{
  width:100%;
  height:44px;
  border-radius:var(--radius-input);
  border:1px solid #D5E2EF;
  padding:0 14px;
  font-size:14px;
  color:var(--title);
  background:#f8fbfe;
  transition:border .2s,box-shadow .2s;
  margin-bottom:16px;
}
.login-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,111,178,.15);
  background:#fff;
}
.login-form input::placeholder{
  color:#b0c3d4;
}
.login-form .btn{
  width:100%;
  height:46px;
}
.login-card-links{
  display:flex;
  justify-content:space-between;
  margin-top:16px;
  font-size:13px;
}
.login-card-links a{
  color:var(--primary);
  font-weight:500;
}
.login-card-links a:hover{
  color:var(--primary-dark);
  text-decoration:underline;
}
@media(max-width:1200px){
  .hero .container{
    grid-template-columns:1fr 340px;
    gap:40px;
  }
}
@media(max-width:992px){
  .hero{
    min-height:auto;
    padding:64px 0;
  }
  .hero .container{
    grid-template-columns:1fr;
    gap:36px;
  }
  .hero-login-card{
    max-width:440px;
  }
}
@media(max-width:768px){
  .hero{
    min-height:auto;
    padding:44px 0;
  }
  .hero h1{
    font-size:28px;
    line-height:1.35;
  }
  .hero-desc{
    font-size:15px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .hero-trust{
    flex-wrap:wrap;
    gap:10px;
  }
}

/* Film strip */
.film-strip{
  background:var(--bg);
  padding:88px 0 64px;
}
.strip-viewport{
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  padding:4px 4px 20px;
  margin:0 -4px;
}
.strip-viewport::-webkit-scrollbar{
  display:none;
}
.strip-track{
  display:flex;
  gap:24px;
}
.strip-card{
  flex:0 0 240px;
  scroll-snap-align:start;
  background:var(--card);
  border-radius:var(--radius-poster);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s,box-shadow .3s;
}
.strip-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.strip-cover{
  position:relative;
  aspect-ratio:3/4;
  overflow:hidden;
  background:var(--primary-tint);
}
.strip-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.strip-card:hover .strip-cover img{
  transform:scale(1.05);
}
.strip-cover .badge{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
  background:rgba(255,255,255,.92);
  color:var(--primary);
  border:1px solid rgba(31,111,178,.15);
}
.strip-info{
  padding:14px 16px 16px;
}
.strip-info h3{
  font-size:15px;
  font-weight:600;
  color:var(--title);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:45px;
}
.strip-info .badge{
  margin-top:8px;
  font-size:11px;
}
.strip-arrow{
  display:flex;
  gap:8px;
  flex-shrink:0;
}
.strip-arrow button{
  width:42px;
  height:42px;
  border-radius:50%;
  border:1px solid var(--border);
  background:#fff;
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all .2s;
  box-shadow:0 2px 8px rgba(20,50,70,.05);
}
.strip-arrow button:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.strip-arrow button svg{
  width:18px;
  height:18px;
}
@media(max-width:768px){
  .film-strip{
    padding:56px 0 32px;
  }
  .strip-card{
    flex-basis:200px;
  }
  .strip-arrow{
    display:none;
  }
}

/* Hot recommend */
.hot-recommend{
  background:var(--bg);
  padding:0 0 88px;
}
.hot-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.hot-card{
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s,box-shadow .3s;
  display:block;
}
.hot-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.hot-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--primary-tint);
}
.hot-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.hot-card:hover .hot-cover img{
  transform:scale(1.04);
}
.hot-cover .badge-hot{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
}
.hot-body{
  padding:18px 20px 20px;
}
.hot-body h3{
  font-size:16px;
  font-weight:600;
  color:var(--title);
  margin-bottom:8px;
  line-height:1.5;
}
.hot-body p{
  font-size:14px;
  color:var(--text);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:14px;
  min-height:48px;
}
.hot-meta{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:12px;
  color:var(--muted);
}
.hot-meta .badge{
  font-size:11px;
}
@media(max-width:992px){
  .hot-grid{
    grid-template-columns:repeat(2,1fr);
  }
}
@media(max-width:768px){
  .hot-recommend{
    padding:0 0 56px;
  }
  .hot-grid{
    grid-template-columns:1fr;
  }
}

/* Playlist sections */
.playlist-sections{
  background:var(--bg);
  padding:0 0 88px;
}
.playlist-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.playlist-card{
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  padding:28px;
  display:flex;
  gap:24px;
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.playlist-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:var(--primary);
}
.playlist-icon{
  width:56px;
  height:56px;
  border-radius:50%;
  background:var(--primary-tint);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  flex-shrink:0;
}
.playlist-icon svg{
  width:26px;
  height:26px;
}
.playlist-info{
  flex:1;
}
.playlist-info h3{
  font-size:18px;
  font-weight:600;
  color:var(--title);
  margin-bottom:6px;
}
.playlist-info p{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  margin-bottom:16px;
}
.playlist-links{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.playlist-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 12px;
  border-radius:8px;
  font-size:14px;
  color:var(--text);
  transition:background .2s,color .2s;
  border:1px solid transparent;
}
.playlist-links a:hover{
  background:var(--primary-tint);
  color:var(--primary);
}
.playlist-links a svg{
  width:16px;
  height:16px;
  color:var(--muted);
  transition:transform .2s;
}
.playlist-links a:hover svg{
  transform:translateX(3px);
  color:var(--primary);
}
@media(max-width:992px){
  .playlist-grid{
    grid-template-columns:1fr;
  }
}
@media(max-width:768px){
  .playlist-sections{
    padding:0 0 56px;
  }
  .playlist-card{
    flex-direction:column;
    gap:14px;
    padding:22px;
  }
  .playlist-icon{
    width:48px;
    height:48px;
  }
}

/* News section */
.news-section{
  background:var(--bg);
  padding:0 0 88px;
}
.news-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.news-featured{
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s,box-shadow .3s;
  display:block;
}
.news-featured:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.news-featured-cover{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--primary-tint);
  position:relative;
}
.news-featured-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.news-featured:hover .news-featured-cover img{
  transform:scale(1.03);
}
.news-featured-body{
  padding:22px 24px 26px;
}
.news-featured-body h3{
  font-size:18px;
  font-weight:700;
  color:var(--title);
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-featured-body p{
  font-size:14px;
  color:var(--text);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--muted);
}
.news-featured .news-meta{
  flex-wrap:wrap;
}
.news-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.news-item{
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  padding:18px 20px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  display:block;
}
.news-item:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:var(--primary);
}
.news-item-top{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:6px;
}
.news-item-top time{
  font-size:12px;
  color:var(--muted);
}
.news-item h4{
  font-size:15px;
  font-weight:600;
  color:var(--title);
  line-height:1.5;
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-item p{
  font-size:13px;
  color:var(--text);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:10px;
}
.news-item-more{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:13px;
  color:var(--primary);
  font-weight:500;
  transition:gap .2s;
}
.news-item:hover .news-item-more{
  gap:8px;
}
.news-footer{
  margin-top:36px;
  text-align:center;
}
.news-empty{
  background:var(--card);
  border:1px dashed var(--border);
  border-radius:var(--radius-card);
  padding:60px 24px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
}
.news-empty svg{
  width:48px;
  height:48px;
  color:#c4d6e6;
}
.news-empty p{
  font-size:15px;
  color:var(--muted);
}
@media(max-width:992px){
  .news-grid{
    grid-template-columns:1fr;
  }
}
@media(max-width:768px){
  .news-section{
    padding:0 0 56px;
  }
  .news-featured-body{
    padding:18px;
  }
}

/* CTA */
.cta-section{
  position:relative;
  padding:88px 0;
  overflow:hidden;
}
.cta-bg{
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(14,38,60,.85),rgba(14,38,60,.65) 70%,rgba(14,38,60,.35));
}
.cta-section .container{
  position:relative;
  z-index:2;
  text-align:center;
  color:#fff;
  max-width:760px;
}
.cta-section h2{
  font-size:30px;
  font-weight:700;
  color:#fff;
  line-height:1.4;
  margin-bottom:14px;
  letter-spacing:.01em;
}
.cta-section p{
  font-size:16px;
  color:rgba(255,255,255,.85);
  line-height:1.8;
  margin-bottom:32px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
.cta-section .btn-ghost{
  border-color:rgba(255,255,255,.5);
  color:#fff;
}
.cta-section .btn-ghost:hover{
  background:rgba(255,255,255,.1);
  border-color:#fff;
}
@media(max-width:768px){
  .cta-section{
    padding:56px 0;
  }
  .cta-section h2{
    font-size:24px;
  }
}

/* FAQ */
.faq-section{
  background:var(--bg);
  padding:0 0 88px;
}
.faq-wrap{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .3s;
}
.faq-item.open{
  box-shadow:var(--shadow-hover);
  border-color:rgba(31,111,178,.3);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:15px;
  font-weight:600;
  color:var(--title);
  background:transparent;
  transition:background .2s;
}
.faq-q:hover{
  background:#f7fafd;
}
.faq-icon{
  width:24px;
  height:24px;
  border-radius:50%;
  border:1.5px solid var(--primary);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:400;
  flex-shrink:0;
  transition:transform .3s,background .3s,color .3s;
  line-height:1;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-a-inner{
  padding:0 22px 20px;
  font-size:14px;
  color:var(--text);
  line-height:1.8;
  border-top:1px solid rgba(227,237,246,.6);
  padding-top:16px;
}
.faq-item.open .faq-a{
  max-height:400px;
}
@media(max-width:768px){
  .faq-section{
    padding:0 0 56px;
  }
  .faq-q{
    font-size:14px;
    padding:15px 16px;
  }
  .faq-a-inner{
    padding:0 16px 16px;
    padding-top:14px;
  }
}

/* Footer */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,.75);
  padding:64px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{
  margin-bottom:16px;
}
.footer-brand .brand-icon{
  background:rgba(255,255,255,.15);
  color:#fff;
  box-shadow:none;
}
.footer-brand .brand-name{
  color:#fff;
}
.footer-brand .brand-sub{
  color:rgba(255,255,255,.5);
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
  max-width:300px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-col a{
  font-size:14px;
  color:rgba(255,255,255,.65);
  transition:color .2s;
}
.footer-col a:hover{
  color:#8ec4e8;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom span{
  display:inline-flex;
  align-items:center;
  gap:18px;
}
@media(max-width:992px){
  .footer-top{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .footer-brand{
    grid-column:1/-1;
  }
}
@media(max-width:768px){
  .site-footer{
    padding-top:48px;
  }
  .footer-top{
    grid-template-columns:1fr 1fr;
    gap:28px;
    padding-bottom:36px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}
@media(max-width:480px){
  .footer-top{
    grid-template-columns:1fr;
  }
}

/* Utility */
.icon-play{
  width:64px;
  height:64px;
  border-radius:50%;
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.3);
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 20px;
  transition:background .3s,transform .3s;
}
.icon-play:hover{
  background:var(--accent);
  transform:scale(1.06);
}
.icon-play svg{
  width:24px;
  height:24px;
  margin-left:3px;
}
.fade-in{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .6s,transform .6s;
}
.fade-in.visible{
  opacity:1;
  transform:translateY(0);
}

/* roulang page: category1 */
:root {
            --color-primary: #1F6FB2;
            --color-primary-dark: #15507E;
            --color-primary-tint: #E8F2FA;
            --color-bg: #F4F8FC;
            --color-card: #FFFFFF;
            --color-border: #E3EDF6;
            --color-accent: #F26A2E;
            --color-accent-dark: #D9551C;
            --color-title: #1D3A4F;
            --color-body: #506E84;
            --color-muted: #89A1B4;
            --color-white: #FFFFFF;
            --color-footer-bg: #0E263C;
            --color-success: #2E9E6B;
            --radius-card: 14px;
            --radius-poster: 18px;
            --radius-btn: 8px;
            --radius-input: 10px;
            --shadow-card: 0 1px 2px rgba(20, 50, 70, .04), 0 10px 24px rgba(31, 111, 178, .06);
            --shadow-card-hover: 0 14px 36px rgba(31, 111, 178, .13);
            --shadow-btn: 0 10px 22px rgba(242, 106, 46, .28);
            --container-width: 1200px;
            --space-section: 88px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg);
            color: var(--color-body);
            font-size: 15px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color .25s, border-color .25s, background .25s, box-shadow .25s;
        }

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

        ul,
        ol {
            padding-left: 1.4em;
        }

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: saturate(1.6) blur(12px);
            -webkit-backdrop-filter: saturate(1.6) blur(12px);
            border-bottom: 1px solid #EAF1F7;
            transition: box-shadow .3s;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(29, 58, 79, .06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #15507E, #1F6FB2);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            border-radius: 10px;
            letter-spacing: 0;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-title);
            letter-spacing: .02em;
        }

        .brand-sub {
            font-size: 12px;
            color: var(--color-muted);
            letter-spacing: .04em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-title);
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            text-decoration: none;
        }

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

        .main-nav a.active {
            color: var(--color-primary);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--color-title);
            transition: background .2s;
        }

        .nav-toggle:hover {
            background: var(--color-primary-tint);
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: .02em;
            transition: transform .2s, box-shadow .2s, background .2s, border-color .2s, opacity .2s;
            text-decoration: none;
            border: 1px solid transparent;
            line-height: 1;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(242, 106, 46, .35);
        }

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

        .btn-primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 14px 26px rgba(242, 106, 46, .34);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 6px 14px rgba(242, 106, 46, .22);
        }

        .btn-ghost {
            background: transparent;
            border-color: #C7DAEA;
            color: var(--color-primary);
        }

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

        .btn-ghost:active {
            transform: translateY(1px);
        }

        .btn-sm {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .btn-lg {
            height: 52px;
            padding: 0 38px;
            font-size: 16px;
        }

        /* ========== Page Hero (category) ========== */
        .page-hero {
            background: linear-gradient(100deg, #E8F2FA 0%, #F4F8FC 100%);
            padding: 64px 0 52px;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 22px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-primary);
            font-weight: 500;
        }

        .breadcrumb .sep {
            color: #B9CDDF;
        }

        .breadcrumb .current {
            color: var(--color-body);
            font-weight: 500;
        }

        .page-hero h1 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-title);
            letter-spacing: .01em;
            max-width: 780px;
            margin-bottom: 16px;
        }

        .page-hero .hero-lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-body);
            max-width: 680px;
        }

        /* ========== Split Section ========== */
        .split-section {
            padding: var(--space-section) 0 72px;
        }

        .split-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 40px;
            align-items: start;
        }

        .content-main {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-poster);
            box-shadow: var(--shadow-card);
            padding: 44px 48px;
        }

        .content-main h2 {
            font-size: 24px;
            line-height: 1.45;
            color: var(--color-title);
            font-weight: 700;
            margin-top: 36px;
            margin-bottom: 16px;
            letter-spacing: .01em;
        }

        .content-main h2:first-child {
            margin-top: 0;
        }

        .content-main h3 {
            font-size: 18px;
            line-height: 1.6;
            color: var(--color-title);
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
        }

        .content-main p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-body);
            margin-bottom: 16px;
        }

        .content-main ul {
            margin: 12px 0 18px;
            padding-left: 1.2em;
        }

        .content-main li {
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 8px;
            color: var(--color-body);
        }

        .content-main img {
            width: 100%;
            border-radius: 12px;
            margin: 24px 0 20px;
            box-shadow: 0 8px 20px rgba(20, 50, 70, .08);
        }

        .content-main .feature-box {
            background: var(--color-primary-tint);
            border-left: 4px solid var(--color-primary);
            border-radius: 10px;
            padding: 18px 22px;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-body);
        }

        /* Side column */
        .side-column {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-column h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-title);
            margin-bottom: 4px;
            padding-left: 2px;
        }

        .side-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow .3s, transform .3s;
            display: flex;
            flex-direction: column;
        }

        .side-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .side-card .side-cover {
            aspect-ratio: 3 / 4;
            width: 100%;
            object-fit: cover;
        }

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

        .side-card .side-body h4 {
            font-size: 16px;
            line-height: 1.45;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 8px;
        }

        .side-card .side-body p {
            font-size: 13px;
            line-height: 1.75;
            color: var(--color-muted);
        }

        .side-card .side-body .card-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            margin-top: 12px;
        }

        .side-card .side-body .card-more svg {
            transition: transform .2s;
        }

        .side-card:hover .card-more svg {
            transform: translateX(4px);
        }

        /* ========== Topic Cards ========== */
        .topic-section {
            padding: 72px 0 var(--space-section);
        }

        .topic-section .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 26px;
            line-height: 1.4;
            font-weight: 700;
            color: var(--color-title);
            letter-spacing: .01em;
        }

        .section-head .sub {
            font-size: 14px;
            color: var(--color-muted);
            margin-top: 6px;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow .3s, transform .3s, border-color .3s;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: #BFD9EE;
        }

        .topic-cover {
            aspect-ratio: 16 / 9;
            width: 100%;
            object-fit: cover;
        }

        .topic-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .topic-body h3 {
            font-size: 18px;
            line-height: 1.5;
            font-weight: 600;
            color: var(--color-title);
        }

        .topic-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-muted);
        }

        .topic-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 6px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            line-height: 1;
            padding: 4px 10px;
            background: var(--color-primary-tint);
            color: var(--color-primary-dark);
            letter-spacing: .02em;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 72px 0 var(--space-section);
            background: #EEF5FA;
        }

        .faq-section .section-head {
            text-align: center;
            margin-bottom: 40px;
        }

        .faq-section .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-title);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .3s, border-color .3s;
        }

        .faq-item.open {
            box-shadow: var(--shadow-card);
            border-color: #BFD9EE;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-title);
            text-align: left;
            cursor: pointer;
            background: transparent;
            transition: color .2s;
        }

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

        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--color-primary);
            border-radius: 2px;
            transition: transform .3s;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 9px;
            left: 3px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 3px;
            left: 9px;
        }

        .faq-item.open .faq-icon::after {
            transform: rotate(90deg);
            opacity: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer p {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.85;
            color: var(--color-body);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(100deg, rgba(14, 38, 60, .82), rgba(14, 38, 60, .35) 70%, rgba(14, 38, 60, .55));
            background-size: cover;
            background-position: center;
            padding: 76px 0;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .cta-text {
            max-width: 560px;
        }

        .cta-text h2 {
            font-size: 28px;
            line-height: 1.4;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-text p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 0;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .cta-section .btn-ghost {
            border-color: rgba(255, 255, 255, .45);
            color: #fff;
        }

        .cta-section .btn-ghost:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            color: #fff;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-footer-bg);
            color: #A9C1D4;
            padding-top: 60px;
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .brand .brand-name {
            color: #fff;
        }

        .footer-brand .brand .brand-sub {
            color: #7E9CB2;
        }

        .footer-desc {
            margin-top: 18px;
            font-size: 13px;
            line-height: 1.8;
            color: #7E9CB2;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

        .footer-col ul a {
            color: #A9C1D4;
            font-size: 14px;
            transition: color .2s;
        }

        .footer-col ul a:hover {
            color: #D7E7F4;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 0;
            font-size: 13px;
            color: #6E8BA1;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .split-layout {
                grid-template-columns: 1fr 320px;
                gap: 28px;
            }
        }

        @media (max-width: 991px) {
            :root {
                --space-section: 64px;
            }
            .header-cta {
                display: none;
            }
            .split-layout {
                grid-template-columns: 1fr;
            }
            .side-column {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px;
            }
            .side-column>h3 {
                width: 100%;
            }
            .side-card {
                flex: 1 1 220px;
                max-width: 230px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            :root {
                --space-section: 48px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, .98);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 8px 16px 16px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 20px 40px rgba(20, 50, 70, .08);
                display: none;
                backdrop-filter: saturate(1.6) blur(12px);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 14px 4px;
                border-bottom: 1px solid #EFF5FA;
                font-size: 15px;
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active {
                color: var(--color-primary);
            }
            .main-nav a.active::after {
                display: none;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 27px;
                line-height: 1.35;
            }
            .content-main {
                padding: 24px 20px;
            }
            .content-main h2 {
                font-size: 22px;
            }
            .content-main h3 {
                font-size: 17px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 480px) {
            .page-hero h1 {
                font-size: 24px;
                line-height: 1.4;
            }
            .content-main {
                padding: 20px 16px;
            }
            .side-column {
                flex-direction: column;
                align-items: stretch;
            }
            .side-card {
                max-width: none;
                flex: none;
                flex-direction: row;
                align-items: center;
            }
            .side-card .side-cover {
                aspect-ratio: 1 / 1;
                width: 100px;
                height: 100px;
                flex-shrink: 0;
                border-radius: 0;
            }
            .side-card .side-body {
                padding: 14px 16px;
            }
            .side-card .side-body p {
                display: none;
            }
            .side-card .side-body h4 {
                margin-bottom: 4px;
                font-size: 15px;
            }
            .side-card .side-body .card-more {
                margin-top: 4px;
            }
            .btn-lg {
                height: 48px;
                padding: 0 30px;
                font-size: 15px;
            }
        }

/* roulang page: article */
:root{
    --primary:#1F6FB2;
    --primary-dark:#15507E;
    --primary-light:#E8F2FA;
    --accent:#F26A2E;
    --accent-dark:#D9551C;
    --bg:#F4F8FC;
    --card:#FFFFFF;
    --border:#E3EDF6;
    --text:#1D3A4F;
    --text-body:#506E84;
    --text-muted:#89A1B4;
    --white:#FFFFFF;
    --footer-bg:#0E263C;
    --success:#2E9E6B;
    --radius-card:14px;
    --radius-poster:18px;
    --radius-btn:8px;
    --radius-input:10px;
    --shadow-card:0 1px 2px rgba(20,50,70,.04),0 10px 24px rgba(31,111,178,.06);
    --shadow-hover:0 14px 36px rgba(31,111,178,.13);
    --shadow-btn:0 10px 22px rgba(242,106,46,.28);
    --max-width:1200px;
    --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);font-size:15px;line-height:1.7;color:var(--text-body);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:14px}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:36px}
.section-head h2{font-size:26px;line-height:34px;font-weight:700;color:var(--text);letter-spacing:.01em}
.section-head .section-more{font-size:14px;font-weight:500;color:var(--primary);padding-bottom:4px;border-bottom:2px solid transparent;transition:border-color .2s}
.section-head .section-more:hover{border-bottom-color:var(--primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1;border:none;transition:all .25s ease;letter-spacing:.02em;text-decoration:none}
.btn-accent{background:var(--accent);color:var(--white);box-shadow:var(--shadow-btn)}
.btn-accent:hover{background:var(--accent-dark);color:var(--white);transform:translateY(-1px);box-shadow:0 14px 30px rgba(242,106,46,.35)}
.btn-accent:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--primary);border:1px solid #C7DAEA}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark)}
.btn-ghost{background:rgba(255,255,255,.12);color:var(--white);border:1px solid rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:var(--white)}
.btn:focus-visible,.main-nav a:focus-visible,a:focus-visible{outline:3px solid rgba(242,106,46,.35);outline-offset:2px}
.tag{display:inline-block;padding:4px 14px;border-radius:999px;font-size:12px;font-weight:500;background:var(--primary-light);color:var(--primary)}
.badge-hot{position:absolute;top:12px;left:12px;background:var(--accent);color:var(--white);font-size:11px;font-weight:700;padding:3px 10px;border-radius:999px;letter-spacing:.04em}
/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.6) blur(12px);-webkit-backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-icon{width:40px;height:40px;background:var(--primary-dark);color:var(--white);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:700;color:var(--text)}
.brand-sub{font-size:11px;color:var(--text-muted);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{color:var(--text-body);font-size:15px;font-weight:500;padding:8px 0;border-bottom:3px solid transparent;transition:color .2s,border-color .2s;text-decoration:none}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}
.nav-toggle{display:none;background:none;border:none;color:var(--text);padding:8px;border-radius:8px;transition:background .2s}
.nav-toggle:hover{background:var(--primary-light)}
.nav-toggle svg{width:24px;height:24px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round}
/* ===== Article Banner ===== */
.article-banner{position:relative;background-size:cover;background-position:center;padding:72px 0 56px;color:var(--white)}
.article-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,38,60,.82),rgba(14,38,60,.35) 65%,rgba(14,38,60,.2));pointer-events:none}
.article-banner .container{position:relative;z-index:2}
.breadcrumb{margin-bottom:28px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72)}
.breadcrumb a{color:rgba(255,255,255,.85);text-decoration:none;transition:color .2s}
.breadcrumb a:hover{color:var(--white)}
.breadcrumb .sep{color:rgba(255,255,255,.45);font-size:12px}
.breadcrumb .current{color:rgba(255,255,255,.9);font-weight:500}
.article-h1{font-size:36px;line-height:44px;font-weight:700;color:var(--white);max-width:760px;margin-bottom:16px;letter-spacing:.01em}
.article-meta{display:flex;align-items:center;gap:16px;font-size:14px;color:rgba(255,255,255,.75)}
.article-meta .meta-divider{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.5)}
.meta-badge{display:inline-block;background:rgba(255,255,255,.16);border-radius:999px;padding:2px 12px;font-size:12px;font-weight:500}
/* ===== Article Layout ===== */
.article-layout{max-width:820px;margin:0 auto;padding:56px 24px 24px}
.article-main{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:48px 56px}
.article-body{font-size:16px;line-height:1.9;color:var(--text-body)}
.article-body h2{font-size:24px;line-height:34px;font-weight:700;color:var(--text);margin:40px 0 16px;padding-bottom:10px;border-bottom:1px solid var(--border);letter-spacing:.01em}
.article-body h3{font-size:20px;line-height:30px;font-weight:700;color:var(--text);margin:32px 0 12px}
.article-body p{margin-bottom:20px;line-height:1.9}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.article-body a:hover{color:var(--primary-dark)}
.article-body blockquote{border-left:4px solid var(--primary);background:var(--primary-light);padding:18px 24px;border-radius:0 10px 10px 0;margin:28px 0;font-size:15px;line-height:1.8;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;line-height:1.9}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:6px}
.article-body img{border-radius:12px;box-shadow:var(--shadow-card);margin:24px 0}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;border-radius:10px;overflow:hidden;box-shadow:var(--shadow-card)}
.article-body th{padding:12px 16px;text-align:left;background:var(--primary-light);font-weight:600;color:var(--text);font-size:14px;border-bottom:2px solid var(--border)}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:14px;line-height:1.7}
.article-body tr:last-child td{border-bottom:none}
.article-body tr:nth-child(even){background:#F8FBFE}
.article-body hr{border:none;border-top:1px solid var(--border);margin:36px 0}
/* Not found */
.article-not-found{text-align:center;padding:60px 20px}
.article-not-found .nf-icon{width:72px;height:72px;margin:0 auto 20px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center}
.article-not-found .nf-icon svg{width:32px;height:32px;stroke:var(--primary);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.article-not-found p{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px}
.article-not-found .sub{font-size:14px;color:var(--text-muted);margin-bottom:24px}
/* Tags */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--border)}
.article-tags .tag{font-size:13px;padding:6px 16px;transition:background .2s,color .2s}
.article-tags .tag:hover{background:var(--primary);color:var(--white)}
/* Pager */
.article-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.pager-link{display:flex;flex-direction:column;gap:4px;padding:16px 20px;border:1px solid var(--border);border-radius:12px;background:var(--card);transition:border-color .2s,box-shadow .2s;text-decoration:none}
.pager-link:hover{border-color:var(--primary);box-shadow:var(--shadow-card)}
.pager-link.next{text-align:right}
.pager-label{font-size:12px;color:var(--text-muted);font-weight:500}
.pager-title{font-size:14px;font-weight:600;color:var(--text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
/* Related */
.related-section{padding:80px 0;background:var(--card);border-top:1px solid var(--border)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card-h{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:box-shadow .25s,transform .25s;text-decoration:none}
.post-card-h:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.post-card-h .post-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.post-card-h .post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card-h:hover .post-cover img{transform:scale(1.05)}
.post-card-h .post-info{padding:20px 20px 24px;display:flex;flex-direction:column;flex:1}
.post-card-h .post-info h3{font-size:16px;line-height:1.5;font-weight:600;color:var(--text);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-h .post-info p{font-size:13px;line-height:1.7;color:var(--text-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;flex:1}
.post-card-h .post-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-muted)}
.post-card-h .post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-muted);opacity:.6}
.related-footer{text-align:center;margin-top:40px}
/* CTA */
.cta-section{position:relative;background-size:cover;background-position:center;padding:80px 0;color:var(--white)}
.cta-section::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,38,60,.88),rgba(14,38,60,.6) 70%,rgba(14,38,60,.45));pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto;padding:0 24px}
.cta-inner h2{font-size:28px;line-height:38px;font-weight:700;margin-bottom:14px;color:var(--white)}
.cta-inner p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:32px}
.cta-inner .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* Footer */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.75);padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-icon{background:rgba(255,255,255,.12);color:var(--white)}
.footer-brand .brand-name{color:var(--white)}
.footer-brand .brand-sub{color:rgba(255,255,255,.6)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.58);max-width:280px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--white);margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,.65);font-size:14px;transition:color .2s;text-decoration:none}
.footer-col ul a:hover{color:#9CD0F5}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:24px 0;font-size:13px;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.55);text-decoration:none}
.footer-bottom a:hover{color:#9CD0F5}
/* Responsive */
@media(max-width:991px){
    .footer-top{grid-template-columns:1fr 1fr}
    .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .section{padding:56px 0}
    .main-nav{position:fixed;top:72px;right:16px;left:16px;background:var(--card);flex-direction:column;align-items:stretch;padding:16px 20px;border-radius:16px;box-shadow:0 20px 48px rgba(14,38,60,.18);display:none;gap:4px;border:1px solid var(--border);z-index:99}
    .main-nav.open{display:flex}
    .main-nav a{padding:12px 8px;border-bottom:1px solid var(--border);border-radius:8px;font-size:15px}
    .main-nav a.active{color:var(--primary);background:var(--primary-light)}
    .nav-toggle{display:block}
    .article-banner{padding:48px 0 40px}
    .article-h1{font-size:28px;line-height:36px}
    .article-main{padding:32px 24px;border-radius:12px}
    .related-grid{grid-template-columns:1fr}
    .cta-section{padding:56px 0}
    .cta-inner h2{font-size:24px;line-height:32px}
    .article-pager{grid-template-columns:1fr}
}
@media(max-width:520px){
    .container{padding:0 16px}
    .header-inner{height:64px}
    .brand-name{font-size:16px}
    .brand-sub{display:none}
    .article-layout{padding:32px 16px 16px}
    .article-main{padding:24px 16px}
    .article-body{font-size:15px;line-height:1.85}
    .article-body h2{font-size:21px;line-height:30px}
    .article-body h3{font-size:18px;line-height:27px}
    .article-banner{padding:40px 0 32px}
    .article-h1{font-size:24px;line-height:32px}
    .footer-top{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;gap:8px;text-align:center}
    .section-head{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:24px}
    .section-head h2{font-size:22px;line-height:30px}
    .related-section{padding:56px 0}
    .cta-inner .btn-group{flex-direction:column;align-items:center}
}

/* roulang page: category2 */
:root{
--blue:#1F6FB2;--blue-dark:#15507E;--blue-tint:#E8F2FA;--bg:#F4F8FC;--card:#fff;--border:#E3EDF6;
--orange:#F26A2E;--orange-dark:#D9551C;--text:#1D3A4F;--body:#506E84;--muted:#89A1B4;--white:#fff;--footer-bg:#0E263C;
--green:#2E9E6B;--radius:14px;--radius-sm:8px;--shadow:0 1px 2px rgba(20,50,70,.04),0 10px 24px rgba(31,111,178,.06);
--shadow-hover:0 14px 36px rgba(31,111,178,.13);--shadow-orange:0 10px 22px rgba(242,106,46,.28);
--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--body);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none;transition:color .2s}
a:hover{color:var(--blue-dark)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(1.6) blur(12px);backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{width:38px;height:38px;background:var(--blue);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:700;color:var(--text)}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{font-size:15px;color:var(--body);font-weight:500;padding:8px 2px;position:relative;transition:color .2s}
.main-nav a:hover{color:var(--blue)}
.main-nav a.active{color:var(--blue)}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:var(--blue);border-radius:3px}
.nav-toggle{display:none;width:42px;height:42px;background:none;border:none;align-items:center;justify-content:center;border-radius:8px;color:var(--text)}
.nav-toggle:hover{background:var(--blue-tint)}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 26px;border-radius:8px;font-size:15px;font-weight:600;border:none;transition:all .2s;text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--orange);color:#fff;box-shadow:var(--shadow-orange)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);filter:brightness(1.05);box-shadow:0 14px 28px rgba(242,106,46,.34)}
.btn-primary:active{transform:translateY(0)}
.btn:focus-visible{outline:3px solid rgba(242,106,46,.35);outline-offset:2px}
.btn-ghost{background:transparent;border:1px solid #C7DAEA;color:var(--blue)}
.btn-ghost:hover{background:var(--blue-tint);border-color:var(--blue);color:var(--blue)}
.btn-ghost:focus-visible{outline:3px solid rgba(31,111,178,.25);outline-offset:2px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 14px;border-radius:99px;background:var(--blue-tint);color:var(--blue);font-size:12px;font-weight:600;letter-spacing:.02em}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:99px;background:var(--blue-tint);color:var(--blue-dark);font-size:13px;font-weight:500;border:1px solid rgba(31,111,178,.12);transition:background .2s,border-color .2s}
.tag:hover{background:#fff;border-color:var(--blue)}
.cat-hero{background:linear-gradient(120deg,var(--blue-tint) 0%,rgba(232,242,250,.35) 70%,rgba(244,248,252,.2) 100%);border-bottom:1px solid var(--border);padding:56px 0 48px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--blue);font-weight:500}
.breadcrumb .sep{color:#c2d4e4}
.breadcrumb .current{color:var(--muted)}
.cat-hero h1{font-size:36px;line-height:1.35;color:var(--text);margin:14px 0 14px;font-weight:700;letter-spacing:.01em}
.cat-hero .lead{font-size:16px;line-height:1.8;color:var(--body);max-width:680px}
.hero-tags{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.notice-strip{display:flex;align-items:flex-start;gap:12px;background:#fff;border:1px solid var(--border);border-left:4px solid var(--blue);border-radius:12px;padding:16px 20px;margin-top:28px;box-shadow:var(--shadow)}
.notice-strip svg{flex-shrink:0;margin-top:2px}
.notice-strip p{font-size:14px;line-height:1.7;color:var(--body)}
.cat-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:30px;padding:56px 0 40px;align-items:start}
.prose h2{font-size:24px;line-height:1.4;color:var(--text);margin:34px 0 14px;font-weight:700;position:relative;padding-left:16px}
.prose h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--blue);border-radius:4px}
.prose p{font-size:15px;line-height:1.8;color:var(--body);margin-bottom:16px}
.prose img{border-radius:14px;box-shadow:var(--shadow);margin:20px 0;width:100%;height:auto;object-fit:cover}
.prose ul{padding-left:20px;margin-bottom:16px}
.prose ul li{margin-bottom:8px;line-height:1.7;color:var(--body)}
.faq-list{margin-top:32px;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:none}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;background:none;border:none;text-align:left;font-size:15px;font-weight:600;color:var(--text);transition:background .2s}
.faq-question:hover{background:var(--blue-tint)}
.faq-icon{width:20px;height:20px;flex-shrink:0;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--blue);border-radius:2px;transition:transform .3s ease}
.faq-icon::before{width:14px;height:2px;top:9px;left:3px}
.faq-icon::after{width:2px;height:14px;top:3px;left:9px}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-answer{max-height:300px}
.faq-answer-inner{padding:0 22px 20px;font-size:14px;line-height:1.75;color:var(--body)}
.notice-bar{display:flex;gap:12px;align-items:flex-start;background:var(--blue-tint);border-left:4px solid var(--blue);border-radius:10px;padding:16px 18px;margin-top:30px}
.notice-bar svg{flex-shrink:0;margin-top:2px}
.notice-bar p{font-size:14px;line-height:1.7;color:var(--text-dark)}
.contact-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.cat-sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:94px}
.sidebar-title{font-size:17px;font-weight:700;color:var(--text);margin-bottom:4px;position:relative;padding-bottom:10px}
.sidebar-title::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;background:var(--orange);border-radius:3px}
.mini-card{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--blue)}
.mini-card img{width:100%;height:128px;object-fit:cover}
.mini-card-body{padding:14px 16px 16px}
.mini-card-body h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px;line-height:1.4}
.mini-card-body p{font-size:13px;line-height:1.6;color:var(--muted);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card-link{font-size:13px;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:4px;transition:gap .2s}
.mini-card-link:hover{gap:7px;color:var(--blue-dark)}
.cat-cards{padding:64px 0 80px;background:var(--bg)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:16px;flex-wrap:wrap}
.section-head h2{font-size:26px;color:var(--text);font-weight:700}
.section-head .sub{font-size:14px;color:var(--muted);max-width:520px;line-height:1.6}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat-card{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;position:relative;display:block}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.cat-card figure{position:relative;margin:0;overflow:hidden;aspect-ratio:16/9}
.cat-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.cat-card:hover figure img{transform:scale(1.05)}
.cat-card .num{position:absolute;top:12px;left:12px;background:rgba(14,38,60,.72);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:99px;letter-spacing:.02em;backdrop-filter:blur(4px)}
.cat-card-body{padding:18px 20px 20px}
.cat-card-body h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.4}
.cat-card-body p{font-size:14px;line-height:1.7;color:var(--body);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.cat-card-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted)}
.cta-slim{background:linear-gradient(100deg,rgba(14,38,60,.92) 0%,rgba(14,38,60,.72) 55%,rgba(14,38,60,.55) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;padding:76px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-text h2{color:#fff;font-size:28px;font-weight:700;margin-bottom:12px;line-height:1.4}
.cta-text p{color:rgba(255,255,255,.85);font-size:15px;line-height:1.7;max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:60px 0 0}
.footer-top{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text .brand-name{color:#fff}
.footer-brand .brand-text .brand-sub{color:rgba(255,255,255,.55)}
.footer-desc{font-size:13px;line-height:1.8;color:rgba(255,255,255,.55);max-width:300px;margin-top:14px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.62);font-size:14px;text-decoration:none;transition:color .2s}
.footer-col a:hover{color:#9BC6EC}
.footer-col .muted-text{font-size:13px;color:rgba(255,255,255,.4);line-height:1.6}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:22px 0;font-size:13px;color:rgba(255,255,255,.4);flex-wrap:wrap;gap:8px}
@media(max-width:1199px){
.cat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:991px){
.cat-layout{grid-template-columns:1fr}
.cat-sidebar{position:static;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.footer-top{grid-template-columns:1fr 1fr;gap:36px}
.cat-hero h1{font-size:32px}
}
@media(max-width:767px){
.container{padding:0 20px}
.nav-toggle{display:flex}
.main-nav{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:20px 24px;gap:16px;box-shadow:0 20px 40px rgba(14,38,60,.12);display:none;border-top:1px solid var(--border)}
.main-nav.open{display:flex}
.main-nav a.active::after{display:none}
.main-nav a{font-size:16px;width:100%;padding:10px 0;border-bottom:1px solid #f0f5fa}
.main-nav a:last-child{border-bottom:none}
.cat-hero{padding:44px 0 36px}
.cat-hero h1{font-size:28px;line-height:1.4}
.cat-sidebar{grid-template-columns:1fr}
.cat-grid{grid-template-columns:1fr}
.cta-inner{flex-direction:column;align-items:flex-start}
.footer-top{grid-template-columns:1fr;gap:28px}
.footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
.container{padding:0 16px}
.cat-hero h1{font-size:26px}
.cta-slim{padding:56px 0}
.section-head h2{font-size:22px}
}