/* roulang page: index */
:root{
  --primary:#1E6FB8;
  --accent:#F28C38;
  --bg:#F7F9FC;
  --white:#FFFFFF;
  --navy:#13243B;
  --text:#172A45;
  --muted:#5A6B82;
  --border:#E3EAF2;
  --radius-card:12px;
  --radius-table:16px;
  --shadow-card:0 4px 16px rgba(23,42,69,.08);
  --shadow-hover:0 8px 24px rgba(23,42,69,.12);
  --font-main:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --font-number:'Arial','Helvetica',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
ul,ol{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;}

.wrap{
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 左侧 App Shell 导航 ---------- */
.side-nav{
  position:fixed;
  left:0;top:0;bottom:0;
  width:260px;
  background:var(--white);
  border-right:1px solid var(--border);
  z-index:900;
  padding:28px 16px 20px;
  display:flex;
  flex-direction:column;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 10px;
  margin-bottom:42px;
}
.logo-text{
  font-size:20px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.5px;
  white-space:nowrap;
}
.nav-list li a{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 20px;
  border-radius:8px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  position:relative;
  transition:color .2s ease,background .2s ease;
}
.nav-list li a:hover{
  color:var(--primary);
  background:rgba(30,111,184,.04);
}
.nav-list li a.active{
  color:var(--primary);
  background:rgba(30,111,184,.08);
  font-weight:600;
}
.nav-list li a.active::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:20px;
  background:var(--primary);
  border-radius:0 4px 4px 0;
}
.side-foot{
  margin-top:auto;
  padding:0 10px;
  font-size:12px;
  color:#9aa8ba;
  line-height:1.5;
}

/* ---------- 移动端顶部栏与抽屉 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  background:var(--white);
  border-bottom:1px solid var(--border);
  z-index:1000;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
}
.menu-toggle{
  width:40px;height:40px;
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--white);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.menu-toggle span{
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  display:block;
}
.topbar-logo{
  font-size:18px;
  font-weight:700;
  color:var(--primary);
}
.member-mini{
  background:var(--accent);
  color:#fff;
  font-size:13px;
  font-weight:600;
  padding:7px 16px;
  border-radius:8px;
}
.member-mini:hover{background:#e07a26;color:#fff;}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(23,42,69,.4);
  z-index:998;
  display:none;
}
.drawer-overlay.show{display:block;}
.mobile-drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:280px;
  background:var(--white);
  z-index:1200;
  transform:translateX(-100%);
  transition:transform .3s ease;
  padding:24px 16px 20px;
  display:flex;
  flex-direction:column;
}
.mobile-drawer.open{transform:none;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 8px;
  margin-bottom:28px;
}
.drawer-logo{
  font-size:18px;
  font-weight:700;
  color:var(--primary);
}
.drawer-close{
  width:36px;height:36px;
  border:1px solid var(--border);
  background:var(--white);
  border-radius:8px;
  font-size:22px;
  color:var(--text);
  line-height:1;
}
.drawer-foot{
  margin-top:auto;
  padding:0 8px;
  font-size:12px;
  color:#9aa8ba;
}

/* ---------- 主内容区 ---------- */
.main-wrap{
  margin-left:260px;
  min-height:100vh;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  padding:12px 28px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  line-height:1.4;
  transition:all .25s ease;
  cursor:pointer;
  text-align:center;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
}
.btn-primary:hover{background:#e07a26;color:#fff;}
.btn-primary:active{transform:scale(.98);}
.btn-outline-light{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.7);
  color:#fff;
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.16);
  border-color:#fff;
  color:#fff;
}
.btn-outline{
  background:var(--white);
  border-color:var(--border);
  color:var(--primary);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}
.btn-sm{padding:8px 20px;font-size:13px;}
.btn-block{width:100%;}

/* ---------- Hero 首屏 ---------- */
.hero{
  position:relative;
  background:
    linear-gradient(100deg,rgba(19,36,59,.94) 0%,rgba(19,36,59,.76) 42%,rgba(19,36,59,.35) 70%,rgba(19,36,59,.05) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-inner{
  min-height:680px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding-top:80px;
  padding-bottom:80px;
  max-width:600px;
  margin-left:0;
  margin-right:auto;
}
.hero h1{
  font-size:50px;
  font-weight:700;
  line-height:1.25;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.5px;
}
.hero-sub{
  font-size:17px;
  color:rgba(255,255,255,.88);
  margin-bottom:34px;
  line-height:1.7;
}
.hero-cta{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:52px;
}
.hero-stats{
  display:flex;
  gap:24px;
  flex-wrap:wrap;
}
.stat-item{
  background:rgba(255,255,255,.9);
  border:1px solid rgba(255,255,255,.4);
  border-radius:12px;
  padding:20px 26px;
  text-align:center;
  min-width:140px;
  box-shadow:0 4px 16px rgba(19,36,59,.1);
}
.stat-num{
  font-family:var(--font-number);
  font-size:28px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
}
.stat-label{
  font-size:13px;
  color:var(--muted);
  margin-top:4px;
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg);}
.section-dark{background:var(--navy);color:#fff;}
.section-head{
  margin-bottom:48px;
  max-width:760px;
}
.section-title{
  font-size:32px;
  font-weight:700;
  line-height:1.35;
  color:var(--text);
  margin-bottom:14px;
}
.section-sub{
  font-size:16px;
  color:var(--muted);
  line-height:1.8;
}
.section-dark .section-title{color:#fff;}
.section-dark .section-sub{color:rgba(255,255,255,.75);}

/* ---------- 权益对比表 ---------- */
.table-card{
  background:var(--white);
  border-radius:var(--radius-table);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.table-card table{
  width:100%;
  border-collapse:collapse;
  background:var(--white);
}
.table-card th,.table-card td{
  padding:18px 24px;
  font-size:15px;
  text-align:left;
  border-bottom:1px solid var(--border);
  line-height:1.6;
}
.table-card thead th{
  background:var(--navy);
  color:#fff;
  font-weight:600;
  font-size:15px;
}
.table-card thead th.member-col{
  background:var(--primary);
}
.table-card tbody tr:last-child td{border-bottom:none;}
.table-card tbody tr:hover{background:rgba(30,111,184,.06);}
.table-card .td-muted{color:var(--muted);}
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}

/* ---------- 等级亮点 ---------- */
.levels-grid{
  display:flex;
  flex-wrap:wrap;
}
.levels-grid .cell{
  display:flex;
}
.level-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow:var(--shadow-card);
  padding:36px 32px 32px;
  width:100%;
  display:flex;
  flex-direction:column;
  position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.level-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.level-card h3{
  font-size:22px;
  font-weight:600;
  color:var(--text);
  margin-bottom:10px;
}
.price{
  font-family:var(--font-number);
  font-size:30px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:18px;
  line-height:1.2;
}
.price span{
  font-size:14px;
  font-weight:400;
  color:var(--muted);
}
.feature-list{
  margin-bottom:28px;
  flex:1;
}
.feature-list li{
  position:relative;
  padding-left:30px;
  font-size:14px;
  color:var(--text);
  margin-bottom:12px;
  line-height:1.7;
}
.feature-list li::before{
  content:"✓";
  position:absolute;
  left:0;top:0;
  width:20px;height:20px;
  background:rgba(30,111,184,.1);
  color:var(--primary);
  border-radius:50%;
  text-align:center;
  line-height:20px;
  font-size:12px;
  font-weight:700;
}
.badge-pop{
  position:absolute;
  top:18px;right:18px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 14px;
  border-radius:999px;
  letter-spacing:.5px;
}
@media(min-width:1024px){
  .levels-grid .cell:nth-child(2),
  .levels-grid .cell:nth-child(4){
    transform:translateY(32px);
  }
  .levels-grid .cell:nth-child(2) .level-card,
  .levels-grid .cell:nth-child(4) .level-card{
    box-shadow:0 8px 28px rgba(23,42,69,.12);
  }
}

/* ---------- 专属内容预览 ---------- */
.preview-grid .cell{display:flex;}
.preview-card{
  display:flex;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
  width:100%;
  position:relative;
}
.preview-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.preview-thumb{
  width:190px;
  min-height:160px;
  background-size:cover;
  background-position:center;
  flex-shrink:0;
  position:relative;
}
.preview-body{
  padding:22px 22px 18px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.preview-body h3{
  font-size:16px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
  margin-bottom:10px;
}
.preview-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:14px;
  flex:1;
}
.preview-time{
  font-size:12px;
  color:var(--muted);
  text-align:right;
}
.badge-member{
  position:absolute;
  top:14px;right:14px;
  background:var(--primary);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  z-index:2;
  box-shadow:0 2px 8px rgba(19,36,59,.18);
}

/* ---------- FAQ ---------- */
.wrap-narrow{max-width:860px;}
.accordion{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow:var(--shadow-card);
  padding:8px 32px;
}
.accordion-item{
  border-bottom:1px solid var(--border);
}
.accordion-item:last-child{border-bottom:none;}
.accordion-title{
  font-size:16px;
  font-weight:600;
  color:var(--text);
  padding:22px 42px 22px 0;
  position:relative;
  line-height:1.5;
  background:transparent !important;
  border:none !important;
}
.accordion-title:hover{
  color:var(--primary);
  background:transparent !important;
}
.accordion-title::after{
  content:"+";
  font-family:var(--font-number);
  position:absolute;
  right:0;top:50%;
  transform:translateY(-50%);
  font-size:24px;
  font-weight:400;
  color:var(--primary);
  transition:transform .3s ease;
  line-height:1;
}
.accordion-item.is-active > .accordion-title::after{
  transform:translateY(-50%) rotate(45deg);
}
.accordion-content{
  padding-bottom:22px;
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
  border:none !important;
}
.accordion-content p{color:var(--muted);}

/* ---------- 开通会员表单 ---------- */
.join-section{
  position:relative;
}
.join-desc{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.75);
  margin-top:12px;
}
.join-form{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;
  padding:32px;
  margin-top:40px;
}
.form-label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:rgba(255,255,255,.9);
  margin-bottom:6px;
}
.form-control,.form-select{
  width:100%;
  height:44px;
  background:var(--white);
  border:1px solid #CBD5E1;
  border-radius:8px;
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease;
}
.form-control:focus,.form-select:focus{
  outline:none;
  border:2px solid var(--accent);
}
.form-select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10' viewBox='0 0 14 10'%3E%3Cpath d='M7 10L0 0h14L7 10z' fill='%231E6FB8'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
}
.form-btn-cell{
  display:flex;
  align-items:flex-end;
}
.join-note{
  margin-top:18px;
  font-size:12px;
  color:rgba(255,255,255,.7);
  text-align:center;
}
.form-grid .cell{
  margin-bottom:16px;
}

/* ---------- 最新资讯 CMS ---------- */
.news-section{}
.news-card{
  display:block;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
  color:var(--text);
  height:100%;
}
.news-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  color:var(--text);
}
.news-thumb{
  width:100%;
  aspect-ratio:16/9;
  background-size:cover;
  background-position:center;
  transition:transform .25s ease;
}
.news-card:hover .news-thumb{
  transform:scale(1.02);
}
.news-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-tag{
  display:inline-block;
  font-size:14px;
  color:var(--accent);
  font-weight:600;
  margin-bottom:8px;
}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
  margin-bottom:10px;
}
.news-excerpt{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:14px;
  flex:1;
}
.news-time{
  font-size:13px;
  color:var(--muted);
}
.empty-tip{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:36px;
  text-align:center;
  font-size:15px;
  color:var(--muted);
  box-shadow:var(--shadow-card);
}
.grid-x .cell .empty-tip{
  width:100%;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--navy);
  padding:56px 0 28px;
  color:rgba(255,255,255,.7);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:48px;
}
.footer-brand .logo{
  padding:0;
  margin-bottom:18px;
}
.logo-light .logo-text{color:#fff;}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.65);
  max-width:280px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-links a,
.footer-links span{
  display:block;
  font-size:14px;
  padding:5px 0;
  color:rgba(255,255,255,.65);
  transition:color .2s ease;
}
.footer-links a:hover{color:#fff;}
.footer-contact p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.65);
  margin-bottom:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:48px;
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .side-nav{
    transform:translateX(-100%);
    transition:transform .3s ease;
  }
  .side-nav.open{
    transform:none;
  }
  .topbar{
    display:flex;
  }
  .main-wrap{
    margin-left:0;
    padding-top:60px;
  }
  .hero-inner{
    min-height:560px;
    padding-top:64px;
    padding-bottom:64px;
  }
  .hero h1{
    font-size:42px;
  }
  .section{
    padding:72px 0;
  }
}
@media(max-width:767px){
  .preview-thumb{
    width:100%;
    min-height:170px;
  }
  .preview-card{
    flex-direction:column;
  }
  .badge-member{
    top:12px;right:12px;
  }
  .join-form{
    padding:20px;
  }
  .form-btn-cell{
    align-items:center;
  }
}
@media(max-width:639px){
  .hero h1{
    font-size:31px;
  }
  .hero-sub{
    font-size:15px;
  }
  .hero-inner{
    min-height:520px;
  }
  .hero-stats{
    gap:14px;
  }
  .stat-item{
    min-width:calc(33.333% - 10px);
    padding:16px 10px;
  }
  .stat-num{
    font-size:23px;
  }
  .stat-label{
    font-size:12px;
  }
  .section{
    padding:60px 0;
  }
  .section-title{
    font-size:27px;
  }
  .table-card th,.table-card td{
    padding:14px 16px;
    font-size:14px;
  }
  .accordion{
    padding:0 18px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media(max-width:520px){
  .btn{
    padding:11px 20px;
    font-size:14px;
  }
  .hero-cta{
    flex-direction:column;
    width:100%;
  }
  .hero-cta .btn{
    width:100%;
  }
}

/* roulang page: article */
:root{
  --primary:#1E6FB8;
  --accent:#F28C38;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --heading:#172A45;
  --text:#2A3B55;
  --muted:#5A6B82;
  --border:#E3EAF2;
  --dark:#13243B;
  --danger:#D64545;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --shadow-sm:0 4px 16px rgba(23,42,69,0.08);
  --shadow-lg:0 8px 24px rgba(23,42,69,0.12);
  --transition:all 0.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;line-height:1.8;margin:0;padding:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{color:var(--heading);margin:0;font-weight:700;line-height:1.35}
p{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px}

/* ── 按钮 ── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;
  cursor:pointer;border:1px solid transparent;transition:var(--transition);line-height:1.2;
  text-align:center;white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:#e07c2a;border-color:#e07c2a;color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:scale(0.98)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:rgba(30,111,184,0.08);border-color:var(--primary)}
.btn-outline-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,0.6)}
.btn-outline-secondary:hover{border-color:#fff;color:#fff}
.btn-small{padding:8px 18px;font-size:14px;border-radius:6px}
.btn-lg{padding:16px 38px;font-size:16px}
.btn-back{padding:10px 22px;font-size:14px;border-color:var(--border);color:var(--muted);background:#fff;border-radius:var(--radius-sm)}
.btn-back:hover{border-color:var(--primary);color:var(--primary);transform:translateX(-3px)}
.btn:active{transform:scale(0.98)}

/* ── 侧边栏 ── */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:260px;background:#fff;
  border-right:1px solid var(--border);z-index:100;
  display:flex;flex-direction:column;padding:28px 20px 20px;
}
.sidebar-logo{
  display:flex;align-items:center;gap:10px;padding:0 8px 24px;border-bottom:1px solid var(--border);margin-bottom:20px;
}
.sidebar-logo svg{flex-shrink:0}
.sidebar-logo span{font-size:20px;font-weight:700;color:var(--primary);letter-spacing:0.5px}
.sidebar-nav{display:flex;flex-direction:column;gap:6px;flex:1}
.sidebar-nav a{
  display:flex;align-items:center;gap:14px;height:48px;padding:0 20px;
  border-radius:var(--radius-sm);color:var(--text);font-size:15px;font-weight:500;
  transition:var(--transition);border-left:3px solid transparent;
}
.sidebar-nav a i{width:20px;text-align:center;font-size:16px;color:var(--muted);transition:var(--transition)}
.sidebar-nav a:hover{color:var(--primary);background:rgba(30,111,184,0.04)}
.sidebar-nav a.active{color:var(--primary);background:rgba(30,111,184,0.08);border-left-color:var(--primary);font-weight:600}
.sidebar-nav a.active i{color:var(--primary)}
.sidebar-bottom{font-size:12px;color:var(--muted);padding:16px 8px 0;border-top:1px solid var(--border);margin-top:20px}

/* ── 顶栏（移动端） ── */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;background:#fff;
  border-bottom:1px solid var(--border);z-index:200;align-items:center;padding:0 16px;
}
.menu-toggle{
  width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--heading);border-radius:2px;transition:var(--transition)}
.topbar-logo{font-size:18px;font-weight:700;color:var(--primary);margin-left:14px;flex:1}
.member-mini{
  padding:8px 18px;background:var(--accent);color:#fff;border-radius:30px;font-size:14px;font-weight:600;
}
.member-mini:hover{background:#e07c2a;color:#fff}

/* ── 移动端抽屉 ── */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,42,69,0.4);z-index:300;opacity:0;visibility:hidden;transition:var(--transition);
}
.drawer-mask.show{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;left:0;top:0;bottom:0;width:280px;max-width:85vw;background:#fff;z-index:310;
  transform:translateX(-100%);transition:transform 0.3s ease;display:flex;flex-direction:column;padding:24px 20px;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-logo{display:flex;align-items:center;gap:10px;padding-bottom:20px;border-bottom:1px solid var(--border);margin-bottom:16px}
.drawer-logo span{font-size:18px;font-weight:700;color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;height:44px;padding:0 16px;border-radius:8px;
  color:var(--text);font-size:15px;font-weight:500;border-left:3px solid transparent;
}
.drawer-nav a i{width:20px;color:var(--muted)}
.drawer-nav a.active{color:var(--primary);background:rgba(30,111,184,0.08);border-left-color:var(--primary)}
.drawer-bottom{font-size:12px;color:var(--muted);padding-top:16px;border-top:1px solid var(--border)}

/* ── 主内容区 ── */
.main-area{margin-left:260px;min-height:100vh;display:flex;flex-direction:column}
.article-page{flex:1;padding:48px 24px 80px}
.article-wrap{max-width:780px;margin:0 auto}

/* ── 面包屑 ── */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--border);font-weight:300}
.breadcrumb .current{color:var(--primary);font-weight:500;max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ── 文章卡片 ── */
.article-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:40px 48px;margin-bottom:32px;
}
.article-head{padding-bottom:28px;border-bottom:1px solid var(--border);margin-bottom:32px}
.article-head h1{font-size:30px;line-height:1.4;font-weight:700;color:var(--heading);margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--primary);font-size:14px}
.article-category-link{color:var(--primary);font-weight:600}
.article-category-link:hover{text-decoration:underline}

/* ── 正文内容 ── */
.article-content{font-size:16px;line-height:1.9;color:var(--text)}
.article-content p{margin-bottom:24px}
.article-content h2{font-size:24px;margin:36px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.article-content h3{font-size:20px;margin:32px 0 14px}
.article-content h4{font-size:17px;margin:28px 0 12px}
.article-content blockquote{
  border-left:4px solid var(--primary);background:#F1F5F9;padding:18px 22px;
  border-radius:0 8px 8px 0;margin:24px 0;color:var(--heading);font-style:normal;
}
.article-content blockquote p{margin-bottom:8px}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content ul,.article-content ol{margin:0 0 24px;padding-left:24px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:8px}
.article-content img{border-radius:var(--radius-md);margin:28px auto}
.article-content a{color:var(--primary);border-bottom:1px solid rgba(30,111,184,0.3)}
.article-content a:hover{border-bottom-color:var(--primary)}
.article-content figure{margin:28px 0}
.article-content figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:10px}
.article-content img+em{display:block;text-align:center;font-size:13px;color:var(--muted);font-style:normal;margin-top:8px}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--border);padding:12px 16px;text-align:left}
.article-content th{background:var(--bg);color:var(--heading);font-weight:600}

/* ── 内容未找到 ── */
.not-found{text-align:center;padding:60px 30px}
.not-found-icon{
  width:88px;height:88px;border-radius:50%;background:rgba(30,111,184,0.08);
  display:flex;align-items:center;justify-content:center;margin:0 auto 24px;
}
.not-found-icon i{font-size:40px;color:var(--primary)}
.not-found h2{font-size:24px;margin-bottom:12px}
.not-found p{font-size:15px;color:var(--muted);margin-bottom:28px}

/* ── 标签区 ── */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.article-tags .tag-label{font-size:13px;color:var(--muted);margin-right:4px;display:inline-flex;align-items:center;gap:6px}
.article-tags .tag-item{
  display:inline-block;padding:6px 16px;border-radius:20px;background:#fff;
  border:1px solid var(--border);font-size:13px;color:var(--muted);transition:var(--transition);
}
.article-tags .tag-item:hover{color:var(--primary);border-color:var(--primary);background:rgba(30,111,184,0.04)}

/* ── 上一篇/下一篇 ── */
.article-pager{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:48px;
}
.pager-item{
  display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:20px 24px;transition:var(--transition);
}
.pager-item:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.pager-item .pager-label{font-size:12px;color:var(--muted);margin-bottom:6px;display:flex;align-items:center;gap:6px}
.pager-item .pager-title{font-size:15px;font-weight:600;color:var(--heading);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pager-next{text-align:right}
.pager-next .pager-label{justify-content:flex-end}

/* ── 相关推荐 ── */
.related-section{margin-bottom:48px}
.related-section h2{font-size:24px;margin-bottom:24px;position:relative;padding-left:16px}
.related-section h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;background:var(--accent);border-radius:2px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;transition:var(--transition);display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.related-card .related-cover{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 0.4s ease}
.related-card:hover .related-cover{transform:scale(1.03)}
.related-body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.related-body .related-tag{font-size:13px;color:var(--accent);font-weight:600;margin-bottom:8px}
.related-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--heading)}
.related-body h3 a{color:var(--heading)}
.related-body h3 a:hover{color:var(--primary)}
.related-body .related-summary{font-size:13px;color:var(--muted);line-height:1.6;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-body .related-time{font-size:12px;color:var(--muted);margin-top:12px;display:flex;align-items:center;gap:5px}

/* ── 文章页CTA ── */
.article-cta{
  background:var(--dark);border-radius:var(--radius-lg);padding:48px 40px;
  text-align:center;color:#fff;position:relative;overflow:hidden;
}
.article-cta::before{
  content:"";position:absolute;top:-60px;right:-60px;width:180px;height:180px;
  border-radius:50%;border:2px solid rgba(255,255,255,0.08);
}
.article-cta::after{
  content:"";position:absolute;bottom:-40px;left:-40px;width:120px;height:120px;
  border-radius:50%;border:2px solid rgba(242,140,56,0.2);
}
.article-cta h3{font-size:22px;color:#fff;margin-bottom:12px;position:relative;z-index:1}
.article-cta p{font-size:15px;color:rgba(255,255,255,0.75);margin-bottom:24px;position:relative;z-index:1}
.article-cta .btn{position:relative;z-index:1}
.article-cta .btn-primary:hover{background:#e07c2a}

/* ── 页脚 ── */
.site-footer{background:var(--dark);padding:56px 0 0;color:rgba(255,255,255,0.75)}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 0.9fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-text{font-size:20px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.6);max-width:300px}
.footer-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent);border-radius:2px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,0.65);transition:var(--transition)}
.footer-links a:hover{color:var(--accent);transform:translateX(3px)}
.footer-links span{font-size:14px;color:rgba(255,255,255,0.4)}
.footer-contact p{font-size:14px;color:rgba(255,255,255,0.65);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--accent);width:18px;text-align:center}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12);padding:20px 0;display:flex;
  justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,0.45);
  flex-wrap:wrap;gap:8px;
}

/* ── 响应式 ── */
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main-area{margin-left:0;padding-top:60px}
  .article-page{padding:32px 20px 60px}
  .article-card{padding:32px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .related-grid{grid-template-columns:1fr 1fr;gap:16px}
  .article-pager{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .article-card{padding:24px 20px}
  .article-head h1{font-size:26px}
  .article-content{font-size:15px}
}
@media (max-width:640px){
  .related-grid{grid-template-columns:1fr}
  .article-meta{flex-direction:column;gap:8px}
  .article-cta{padding:40px 24px}
  .breadcrumb .current{max-width:160px}
  .footer-bottom{flex-direction:column;text-align:center}
  .btn{padding:12px 22px}
}

/* roulang page: category1 */
/* ===== Design Variables ===== */
    :root {
      --primary: #1E6FB8;
      --primary-light: rgba(30, 111, 184, 0.08);
      --primary-soft: rgba(30, 111, 184, 0.06);
      --accent: #F28C38;
      --accent-dark: #D9772B;
      --bg: #F7F9FC;
      --white: #FFFFFF;
      --text: #172A45;
      --muted: #5A6B82;
      --body-text: #2A3B55;
      --border: #E3EAF2;
      --dark: #13243B;
      --radius: 12px;
      --radius-sm: 8px;
      --radius-lg: 16px;
      --shadow: 0 4px 16px rgba(23, 42, 69, 0.08);
      --shadow-hover: 0 8px 24px rgba(23, 42, 69, 0.12);
      --sidebar-w: 260px;
      --transition: all 0.25s ease;
    }

    /* ===== Base Reset ===== */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      font-size: 16px;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    ul, ol {
      list-style: none;
    }
    button {
      font-family: inherit;
      cursor: pointer;
    }
    h1, h2, h3, h4, h5, h6 {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      line-height: 1.35;
    }
    .wrap {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    @media (max-width: 639.98px) {
      .wrap {
        padding: 0 16px;
      }
    }

    /* ===== App Shell Layout ===== */
    .lab-shell {
      display: flex;
      min-height: 100vh;
    }
    .main-area {
      margin-left: var(--sidebar-w);
      flex: 1;
      min-width: 0;
      display: flex;
      flex-direction: column;
    }

    /* ===== Desktop Sidebar ===== */
    .lab-sidebar {
      width: var(--sidebar-w);
      position: fixed;
      top: 0;
      left: 0;
      height: 100vh;
      background: var(--white);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      padding: 28px 20px;
      z-index: 30;
    }
    .sidebar-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 700;
      color: var(--primary);
      padding: 8px 8px 20px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 22px;
    }
    .sidebar-logo svg {
      flex-shrink: 0;
    }
    .side-nav {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .nav-link {
      display: block;
      height: 46px;
      line-height: 46px;
      padding: 0 20px;
      border-radius: var(--radius-sm);
      color: var(--text);
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition);
      position: relative;
    }
    .nav-link:hover {
      color: var(--primary);
    }
    .nav-link.active {
      color: var(--primary);
      background: var(--primary-light);
      font-weight: 600;
    }
    .nav-link.active::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 3px;
      height: 20px;
      background: var(--primary);
      border-radius: 0 2px 2px 0;
    }
    .sidebar-meta {
      margin-top: auto;
      padding-top: 20px;
      border-top: 1px solid var(--border);
      font-size: 12px;
      color: var(--muted);
    }

    /* ===== Mobile Topbar ===== */
    .topbar {
      display: none;
      height: 60px;
      background: var(--white);
      border-bottom: 1px solid var(--border);
      align-items: center;
      justify-content: space-between;
      padding: 0 16px;
      position: sticky;
      top: 0;
      z-index: 40;
    }
    .menu-toggle {
      display: flex;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: 0;
      padding: 8px;
      border-radius: 6px;
    }
    .menu-toggle span {
      width: 22px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: var(--transition);
    }
    .menu-toggle:hover span {
      background: var(--primary);
    }
    .topbar-logo {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: 0.2px;
    }
    .member-mini {
      background: var(--accent);
      color: var(--white);
      font-size: 13px;
      padding: 6px 16px;
      border-radius: 999px;
      font-weight: 600;
      transition: var(--transition);
    }
    .member-mini:hover {
      background: var(--accent-dark);
    }

    /* ===== Mobile Drawer ===== */
    .mobile-drawer {
      position: fixed;
      top: 0;
      left: 0;
      width: 280px;
      height: 100%;
      background: var(--white);
      z-index: 70;
      padding: 24px;
      transform: translateX(-100%);
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .mobile-drawer.open {
      transform: translateX(0);
      box-shadow: 4px 0 24px rgba(23, 42, 69, 0.18);
    }
    .drawer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 700;
      color: var(--primary);
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 20px;
    }
    .drawer-nav {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .drawer-link {
      display: block;
      height: 44px;
      line-height: 44px;
      padding: 0 16px;
      border-radius: var(--radius-sm);
      color: var(--text);
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition);
    }
    .drawer-link:hover {
      color: var(--primary);
    }
    .drawer-link.active {
      color: var(--primary);
      background: var(--primary-light);
      font-weight: 600;
    }
    .drawer-meta {
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border);
      font-size: 12px;
      color: var(--muted);
    }
    .drawer-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(23, 42, 69, 0.4);
      z-index: 60;
      display: none;
    }
    .drawer-overlay.show {
      display: block;
    }

    /* ===== Category Hero ===== */
    .category-hero {
      position: relative;
      min-height: 340px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: var(--white);
      background-size: cover;
      background-position: center;
      padding: 64px 24px;
      overflow: hidden;
    }
    .category-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(19, 36, 59, 0.9) 0%, rgba(19, 36, 59, 0.55) 55%, rgba(19, 36, 59, 0.3) 100%);
    }
    .hero-inner {
      position: relative;
      z-index: 1;
      max-width: 760px;
      padding: 20px;
    }
    .hero-crumb {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .hero-crumb a {
      color: rgba(255, 255, 255, 0.85);
    }
    .hero-crumb a:hover {
      color: var(--white);
      text-decoration: underline;
    }
    .category-hero h1 {
      font-size: 42px;
      font-weight: 700;
      line-height: 1.25;
      color: var(--white);
      margin-bottom: 14px;
    }
    .category-hero p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.85);
      max-width: 580px;
      margin: 0 auto;
      line-height: 1.8;
    }

    /* ===== Sport Tags Strip ===== */
    .sport-tags {
      padding: 28px 24px;
      background: var(--white);
      border-bottom: 1px solid var(--border);
    }
    .tags-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .tag-chip {
      background: var(--bg);
      color: var(--text);
      border: 1px solid var(--border);
      border-radius: 999px;
      padding: 6px 18px;
      font-size: 13px;
      font-weight: 500;
      transition: var(--transition);
    }
    .tag-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-1px);
    }

    /* ===== Section Base ===== */
    .section-block {
      padding: 88px 0;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-sub {
      color: var(--muted);
      font-size: 15px;
      margin-bottom: 40px;
      line-height: 1.7;
    }

    /* ===== Split Media ===== */
    .split-section {
      background: var(--bg);
    }
    .split-media {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .split-image-wrap {
      position: relative;
    }
    .split-image-wrap img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      width: 100%;
      height: 340px;
      object-fit: cover;
    }
    .mini-stat {
      position: absolute;
      left: 20px;
      bottom: -20px;
      background: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 14px 22px;
      display: flex;
      flex-direction: column;
      align-items: center;
      border: 1px solid var(--border);
      min-width: 130px;
    }
    .mini-stat strong {
      font-size: 28px;
      font-weight: 700;
      color: var(--primary);
      font-family: Arial, Helvetica, sans-serif;
      line-height: 1.2;
    }
    .mini-stat span {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.4;
      margin-top: 2px;
    }
    .split-copy {
      padding-left: 8px;
    }
    .split-desc {
      color: var(--body-text);
      font-size: 15px;
      line-height: 1.8;
      margin: 16px 0 24px;
    }
    .point-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .point-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      font-size: 15px;
      line-height: 1.8;
      color: var(--body-text);
    }
    .point-item strong {
      color: var(--text);
      font-weight: 600;
    }
    .point-ic {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      margin-top: 5px;
      font-size: 11px;
    }

    /* ===== Timeline Section ===== */
    .timeline-section {
      background: var(--white);
    }
    .timeline-list {
      display: flex;
      flex-direction: column;
      border-top: 1px solid var(--border);
    }
    .timeline-item {
      display: grid;
      grid-template-columns: 100px 1fr;
      gap: 24px;
      padding: 24px 8px;
      border-bottom: 1px solid var(--border);
      transition: var(--transition);
    }
    .timeline-item:hover {
      padding-left: 16px;
      background: var(--primary-soft);
    }
    .timeline-date {
      font-size: 14px;
      color: var(--muted);
      font-weight: 600;
      font-family: Arial, Helvetica, sans-serif;
      transition: var(--transition);
      line-height: 1.6;
    }
    .timeline-body {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .timeline-title {
      font-size: 17px;
      font-weight: 600;
      color: var(--text);
      transition: var(--transition);
      line-height: 1.5;
    }
    .timeline-desc {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
    }
    .timeline-item:hover .timeline-date,
    .timeline-item:hover .timeline-title {
      color: var(--primary);
    }

    /* ===== CTA Panel ===== */
    .cta-panel {
      background: var(--bg);
      padding: 88px 0;
    }
    .cta-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: 56px 40px;
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }
    .cta-card h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 12px;
    }
    .cta-card p {
      font-size: 15px;
      color: var(--muted);
      line-height: 1.8;
      margin-bottom: 32px;
      max-width: 560px;
      margin-left: auto;
      margin-right: auto;
    }
    .cta-buttons {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--accent);
      color: var(--white);
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      border: 0;
      cursor: pointer;
      transition: var(--transition);
      line-height: 1.4;
    }
    .btn-primary:hover {
      background: var(--accent-dark);
      color: var(--white);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      transform: scale(0.98);
    }
    .btn-border-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: transparent;
      color: var(--primary);
      border: 1px solid var(--primary);
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      line-height: 1.4;
    }
    .btn-border-primary:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .btn-border-primary:active {
      transform: scale(0.98);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--dark);
      padding: 56px 24px 24px;
      color: rgba(255, 255, 255, 0.78);
      margin-top: auto;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      max-width: 1200px;
      margin: 0 auto;
    }
    .footer-brand .logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand .logo-text {
      font-size: 19px;
      font-weight: 700;
      color: var(--white);
    }
    .footer-desc {
      font-size: 13px;
      line-height: 1.7;
      color: rgba(255, 255, 255, 0.6);
      margin-top: 16px;
      max-width: 300px;
    }
    .footer-title {
      color: var(--white);
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a,
    .footer-links span {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      transition: var(--transition);
      line-height: 1.5;
    }
    .footer-links a:hover {
      color: var(--white);
    }
    .footer-contact p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
      margin-bottom: 8px;
      line-height: 1.6;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023.98px) {
      .lab-sidebar {
        display: none;
      }
      .main-area {
        margin-left: 0;
      }
      .topbar {
        display: flex;
      }
      .section-block {
        padding: 64px 0;
      }
      .split-media {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .split-copy {
        padding-left: 0;
      }
      .split-image-wrap img {
        height: 280px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
      .category-hero {
        min-height: 320px;
      }
      .category-hero h1 {
        font-size: 36px;
      }
    }

    @media (max-width: 639.98px) {
      .section-block {
        padding: 56px 0;
      }
      .section-title {
        font-size: 26px;
      }
      .section-sub {
        font-size: 14px;
        margin-bottom: 28px;
      }
      .category-hero {
        min-height: 300px;
        padding: 48px 16px;
      }
      .category-hero h1 {
        font-size: 30px;
      }
      .category-hero p {
        font-size: 14px;
      }
      .split-image-wrap img {
        height: 220px;
      }
      .mini-stat {
        left: 14px;
        bottom: -16px;
        padding: 10px 16px;
        min-width: 110px;
      }
      .mini-stat strong {
        font-size: 22px;
      }
      .timeline-item {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 20px 4px;
      }
      .timeline-item:hover {
        padding-left: 8px;
      }
      .timeline-date {
        font-size: 13px;
      }
      .timeline-title {
        font-size: 16px;
      }
      .cta-card {
        padding: 40px 20px;
      }
      .cta-buttons {
        flex-direction: column;
        align-items: stretch;
      }
      .btn-primary,
      .btn-border-primary {
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .site-footer {
        padding: 48px 16px 24px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 6px;
        text-align: center;
      }
    }

/* roulang page: category2 */
:root{
  --primary:#1E6FB8;
  --primary-dark:#155391;
  --accent:#F28C38;
  --accent-dark:#d96f1f;
  --bg:#F7F9FC;
  --card-bg:#FFFFFF;
  --text:#172A45;
  --text-secondary:#5A6B82;
  --border:#E3EAF2;
  --dark:#13243B;
  --radius:12px;
  --radius-lg:16px;
  --shadow:0 4px 16px rgba(23,42,69,0.08);
  --shadow-hover:0 8px 24px rgba(23,42,69,0.12);
  --transition:all 0.25s ease;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:var(--font-family);font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:var(--transition);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
ul,ol{list-style:none;margin:0;padding:0;}

.app-shell{display:flex;min-height:100vh;}
.sidebar{width:260px;flex-shrink:0;background:var(--card-bg);border-right:1px solid var(--border);position:fixed;top:0;left:0;height:100vh;display:flex;flex-direction:column;z-index:100;padding:24px 0 16px;}
.sidebar-logo{display:flex;align-items:center;gap:12px;padding:0 24px 28px;font-size:20px;font-weight:700;color:var(--primary);}
.sidebar-logo svg{flex-shrink:0;}
.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:6px;padding:0 12px;}
.sidebar-nav a{display:flex;align-items:center;gap:12px;height:46px;padding:0 20px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text);position:relative;transition:var(--transition);}
.sidebar-nav a i{width:20px;text-align:center;font-size:17px;color:var(--text-secondary);transition:var(--transition);}
.sidebar-nav a:hover{color:var(--primary);background:rgba(30,111,184,0.04);}
.sidebar-nav a:hover i{color:var(--primary);}
.sidebar-nav a.active{color:var(--primary);background:rgba(30,111,184,0.08);font-weight:600;}
.sidebar-nav a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:22px;background:var(--primary);border-radius:0 4px 4px 0;}
.sidebar-nav a.active i{color:var(--primary);}
.sidebar-copy{padding:16px 24px;font-size:12px;color:var(--text-secondary);opacity:0.7;border-top:1px solid var(--border);margin-top:12px;}

.main-area{flex:1;margin-left:260px;display:flex;flex-direction:column;min-width:0;}

.topbar{display:none;height:60px;background:var(--card-bg);border-bottom:1px solid var(--border);align-items:center;padding:0 16px;position:sticky;top:0;z-index:90;}
.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:8px;border-radius:6px;}
.menu-toggle span{display:block;height:2px;background:var(--text);border-radius:2px;transition:var(--transition);}
.menu-toggle:hover span{background:var(--primary);}
.topbar-logo{font-size:18px;font-weight:700;color:var(--primary);padding-left:8px;}
.member-mini{margin-left:auto;background:var(--accent);color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:8px;transition:var(--transition);}
.member-mini:hover{background:var(--accent-dark);color:#fff;transform:scale(0.97);}

.drawer-backdrop{position:fixed;inset:0;background:rgba(23,42,69,0.4);z-index:190;opacity:0;visibility:hidden;transition:opacity 0.3s ease,visibility 0.3s ease;}
.drawer-backdrop.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;left:0;width:280px;height:100vh;background:var(--card-bg);z-index:200;transform:translateX(-100%);transition:transform 0.3s ease;display:flex;flex-direction:column;padding:24px 0 16px;box-shadow:4px 0 24px rgba(23,42,69,0.12);}
.drawer.open{transform:translateX(0);}
.drawer-logo{display:flex;align-items:center;gap:12px;padding:0 24px 28px;font-size:20px;font-weight:700;color:var(--primary);}
.drawer-nav{flex:1;display:flex;flex-direction:column;gap:4px;padding:0 12px;}
.drawer-nav a{display:flex;align-items:center;gap:12px;height:46px;padding:0 20px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text);position:relative;}
.drawer-nav a i{width:20px;text-align:center;color:var(--text-secondary);}
.drawer-nav a.active{color:var(--primary);background:rgba(30,111,184,0.08);font-weight:600;}
.drawer-nav a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:22px;background:var(--primary);border-radius:0 4px 4px 0;}
.drawer-copy{padding:16px 24px;font-size:12px;color:var(--text-secondary);border-top:1px solid var(--border);}

.container-mod{max-width:1200px;margin:0 auto;padding:0 32px;width:100%;}

.sub-hero{position:relative;min-height:340px;display:flex;align-items:center;justify-content:center;text-align:center;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;padding:80px 24px;}
.sub-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(19,36,59,0.82) 30%,rgba(19,36,59,0.45) 70%,rgba(19,36,59,0.3) 100%);}
.sub-hero .sub-hero-content{position:relative;z-index:2;max-width:720px;}
.sub-hero h1{font-size:42px;font-weight:700;color:#fff;line-height:1.25;margin-bottom:14px;letter-spacing:0.5px;}
.sub-hero p{font-size:16px;color:rgba(255,255,255,0.85);line-height:1.7;}

.section{padding:96px 0;}
.section-white{background:#fff;}
.section-gray{background:var(--bg);}
.section-dark{background:var(--dark);}
.section-title{font-size:30px;font-weight:700;color:var(--text);text-align:center;margin-bottom:12px;line-height:1.35;}
.section-subtitle{font-size:15px;color:var(--text-secondary);text-align:center;max-width:640px;margin:0 auto 48px;line-height:1.8;}

.feature-row{display:flex;align-items:center;gap:56px;}
.feature-media{flex:0 0 48%;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);}
.feature-media img{width:100%;height:360px;object-fit:cover;transition:transform 0.4s ease;}
.feature-media:hover img{transform:scale(1.03);}
.feature-content{flex:1;}
.feature-content h2{font-size:28px;font-weight:700;color:var(--text);margin-bottom:12px;line-height:1.35;}
.feature-content .feature-desc{font-size:15px;color:var(--text-secondary);line-height:1.8;margin-bottom:24px;}
.feature-list{display:flex;flex-direction:column;gap:16px;}
.feature-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--text);line-height:1.7;}
.feature-list li i{color:var(--primary);font-size:13px;margin-top:5px;flex-shrink:0;}
.feature-list li strong{display:block;font-weight:600;margin-bottom:2px;}

.timeline-wrap{position:relative;padding-left:36px;}
.timeline-wrap::before{content:"";position:absolute;left:14px;top:8px;bottom:8px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding:28px 0 28px 40px;border-bottom:1px solid var(--border);}
.timeline-item:last-child{border-bottom:none;}
.timeline-node{position:absolute;left:-36px;top:30px;width:30px;height:30px;border-radius:50%;background:#fff;border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--primary);z-index:2;transition:var(--transition);}
.timeline-item:hover .timeline-node{background:var(--primary);color:#fff;box-shadow:0 0 0 5px rgba(30,111,184,0.15);}
.timeline-item .timeline-grid{display:grid;grid-template-columns:150px 220px 1fr;gap:24px;align-items:center;}
.timeline-time{font-size:13px;font-weight:600;color:var(--text-secondary);letter-spacing:0.3px;}
.timeline-time span{display:block;font-size:12px;font-weight:400;color:#94A3B8;margin-top:2px;}
.timeline-title{font-size:19px;font-weight:700;color:var(--text);transition:var(--transition);}
.timeline-title .badge-level{display:inline-block;margin-left:8px;font-size:11px;font-weight:600;padding:2px 10px;border-radius:999px;background:rgba(30,111,184,0.1);color:var(--primary);vertical-align:middle;}
.timeline-desc{font-size:14px;color:var(--text-secondary);line-height:1.75;}
.timeline-grid:hover .timeline-title{color:var(--primary);}

.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:first-child{border-top:1px solid var(--border);}
.faq-title{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--text);line-height:1.5;transition:var(--transition);}
.faq-title i{color:var(--primary);font-size:16px;transition:transform 0.3s ease;flex-shrink:0;margin-left:16px;}
.faq-item.open .faq-title i{transform:rotate(45deg);}
.faq-title:hover{color:var(--primary);}
.faq-content{max-height:0;overflow:hidden;transition:max-height 0.35s ease;padding:0 4px;}
.faq-content-inner{padding:0 0 20px;font-size:14px;color:var(--text-secondary);line-height:1.8;}

.cta-section{text-align:center;padding:88px 0;}
.cta-section h2{font-size:30px;font-weight:700;color:#fff;margin-bottom:12px;}
.cta-section p{font-size:16px;color:rgba(255,255,255,0.75);max-width:600px;margin:0 auto 36px;line-height:1.8;}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;line-height:1;transition:var(--transition);cursor:pointer;border:1px solid transparent;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 6px 16px rgba(242,140,56,0.35);}
.btn-primary:active{transform:scale(0.98);}
.btn-outline{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.6);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,0.15);border-color:#fff;color:#fff;}
.btn-outline-blue{background:transparent;border:1px solid var(--primary);color:var(--primary);}
.btn-outline-blue:hover{border-color:var(--primary-dark);color:var(--primary-dark);background:rgba(30,111,184,0.05);}

.site-footer{background:var(--dark);padding:56px 0 0;color:rgba(255,255,255,0.8);}
.site-footer .wrap{max-width:1200px;margin:0 auto;padding:0 32px 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.12);}
.footer-brand .logo{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.logo-text{font-size:19px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.55);max-width:360px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:0.3px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,0.65);line-height:1.6;}
.footer-links a:hover{color:var(--accent);}
.footer-links span{font-size:14px;color:rgba(255,255,255,0.45);line-height:1.6;}
.footer-contact p{font-size:14px;color:rgba(255,255,255,0.6);line-height:1.9;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:20px 0 0;font-size:13px;color:rgba(255,255,255,0.4);}

@media(max-width:1023.98px){
  .sidebar{display:none;}
  .main-area{margin-left:0;}
  .topbar{display:flex;}
  .section{padding:64px 0;}
  .container-mod{padding:0 20px;}
  .sub-hero{min-height:300px;padding:64px 20px;}
  .sub-hero h1{font-size:32px;}
  .feature-row{flex-direction:column;gap:32px;}
  .feature-media{flex:none;width:100%;}
  .feature-media img{height:280px;}
  .feature-content h2{font-size:24px;}
  .timeline-grid{grid-template-columns:1fr;gap:8px;}
  .timeline-item{padding-left:0;}
  .timeline-wrap{padding-left:0;}
  .timeline-wrap::before{display:none;}
  .timeline-node{display:none;}
  .timeline-item{border-left:none;border-bottom:1px solid var(--border);padding:20px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media(max-width:639.98px){
  .sub-hero h1{font-size:26px;line-height:1.35;}
  .sub-hero p{font-size:14px;}
  .section{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center;}
  .cta-section{padding:64px 0;}
  .cta-section h2{font-size:26px;}
  .btn{width:100%;max-width:300px;}
  .container-mod{padding:0 16px;}
}