/* roulang page: index */
/* ========== 设计变量与重置 ========== */
:root{
  --primary:#4f46e5;
  --primary-2:#6366f1;
  --primary-dark:#4338ca;
  --accent:#f59e0b;
  --accent-2:#fbbf24;
  --ok:#10b981;
  --dark:#0f172a;
  --dark-2:#1e293b;
  --text:#1e293b;
  --muted:#64748b;
  --bg:#f6f7fb;
  --white:#ffffff;
  --border:#e6e8ef;
  --radius:18px;
  --radius-s:10px;
  --shadow:0 6px 30px rgba(15,23,42,.08);
  --shadow-hover:0 14px 44px rgba(15,23,42,.14);
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{list-style:none}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px}
.section-pad{padding:88px 0}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--primary-2);background:rgba(79,70,229,.08);
  padding:6px 16px;border-radius:100px;margin-bottom:14px;
}
.section-eyebrow::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent)}
.section-title{font-size:32px;font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--dark)}
.section-desc{margin-top:12px;font-size:15px;color:var(--muted)}
@media(max-width:768px){
  .section-pad{padding:64px 0}
  .section-title{font-size:26px}
}

/* ========== 双层导航 ========== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  box-shadow:0 1px 0 var(--border);
}
.header-top{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--dark);letter-spacing:.01em}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;box-shadow:0 4px 16px rgba(79,70,229,.35);
}
.logo-text b{color:var(--primary)}
.search-box{
  flex:0 1 360px;display:flex;align-items:center;
  background:var(--bg);border:1px solid var(--border);
  border-radius:100px;padding:4px 4px 4px 16px;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.search-box input{flex:1;border:none;outline:none;background:transparent;font-size:14px;padding:8px 0}
.search-box button{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;font-size:14px;display:flex;align-items:center;justify-content:center;transition:background var(--transition)}
.search-box button:hover{background:var(--primary-dark)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-size:14px;font-weight:600;
  padding:10px 22px;border-radius:100px;
  box-shadow:0 4px 18px rgba(79,70,229,.3);
  transition:transform var(--transition),box-shadow var(--transition);
}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(79,70,229,.4);color:#fff}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);font-size:18px;color:var(--dark);align-items:center;justify-content:center}
.header-nav{
  border-top:1px solid var(--border);
  background:rgba(255,255,255,.75);
  backdrop-filter:blur(8px);
}
.nav-scroll{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-tab{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  font-size:14px;font-weight:600;color:var(--muted);
  padding:9px 20px;border-radius:100px;
  border:1px solid transparent;
  transition:all var(--transition);
}
.nav-tab i{font-size:13px}
.nav-tab:hover{color:var(--primary);background:rgba(79,70,229,.06)}
.nav-tab.active{color:var(--white);background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 4px 14px rgba(79,70,229,.3)}
@media(max-width:900px){
  .search-box{display:none}
  .menu-toggle{display:flex}
  .header-nav{
    display:none;
  }
  .header-nav.open{
    display:block;
    border-top:1px solid var(--border);
    background:var(--white);
  }
  .header-nav.open .nav-scroll{flex-wrap:nowrap;padding:12px 16px}
  .header-top{height:66px}
}

/* ========== Hero ========== */
.hero{
  position:relative;
  background:linear-gradient(135deg,rgba(15,23,42,.94) 0%,rgba(79,70,229,.84) 60%,rgba(99,102,241,.78) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;overflow:hidden;
}
.hero::after{
  content:'';position:absolute;right:-80px;bottom:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(245,158,11,.28),transparent 65%);
  pointer-events:none;
}
.hero-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;padding:104px 0 88px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  padding:7px 18px;border-radius:100px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  margin-bottom:22px;
}
.hero-eyebrow i{color:var(--accent-2)}
.hero h1{
  font-size:44px;line-height:1.3;font-weight:800;letter-spacing:.01em;
  text-shadow:0 4px 20px rgba(0,0,0,.2);
}
.hero h1 .grad{
  background:linear-gradient(90deg,var(--accent-2),#fff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{
  margin-top:22px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:560px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn-light{
  display:inline-flex;align-items:center;gap:10px;
  background:#fff;color:var(--dark);font-weight:600;font-size:15px;
  padding:13px 28px;border-radius:100px;
  box-shadow:0 6px 24px rgba(0,0,0,.16);
  transition:transform var(--transition),box-shadow var(--transition);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(0,0,0,.22);color:var(--dark)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid rgba(255,255,255,.35);color:#fff;font-weight:600;font-size:15px;
  padding:13px 28px;border-radius:100px;
  transition:all var(--transition);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6)}
.hero-mini{margin-top:30px;display:inline-flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.68)}
.hero-mini i{color:var(--ok)}
.hero-panel{
  background:rgba(255,255,255,.1);backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.16);border-radius:24px;
  padding:32px;box-shadow:0 24px 60px rgba(0,0,0,.22);
}
.hero-panel h3{font-size:18px;font-weight:700;margin-bottom:6px}
.hero-panel .sub{font-size:13px;color:rgba(255,255,255,.65);margin-bottom:22px}
.metric-item{
  display:flex;align-items:center;gap:14px;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1);
}
.metric-item:last-child{border-bottom:none;padding-bottom:0}
.metric-ico{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.14);font-size:18px;color:var(--accent-2);
}
.metric-info b{font-size:20px;font-weight:800;display:block;line-height:1.3}
.metric-info span{font-size:13px;color:rgba(255,255,255,.68)}
@media(max-width:900px){
  .hero-wrap{grid-template-columns:1fr;gap:40px;padding:72px 0 64px}
  .hero h1{font-size:34px}
}
@media(max-width:520px){
  .hero h1{font-size:28px}
  .hero-btns .btn-light,.hero-btns .btn-ghost{width:100%;justify-content:center}
}

/* ========== 平台优势 ========== */
.features{background:var(--white);border-bottom:1px solid var(--border)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 26px;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  position:relative;overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;right:-40px;top:-40px;width:90px;height:90px;border-radius:50%;
  background:rgba(79,70,229,.06);transition:transform var(--transition);
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(79,70,229,.25)}
.feature-card:hover::before{transform:scale(1.7)}
.feature-ico{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-size:21px;margin-bottom:18px;
  box-shadow:0 6px 20px rgba(79,70,229,.35);position:relative;z-index:2;
}
.feature-card h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--dark)}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.7}
@media(max-width:1024px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.feature-grid{grid-template-columns:1fr}}

/* ========== 分类入口 ========== */
.categories .category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.category-card{
  display:block;border-radius:22px;overflow:hidden;position:relative;
  background:var(--dark);box-shadow:var(--shadow);
  transition:transform var(--transition),box-shadow var(--transition);
}
.category-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.category-card img{width:100%;height:260px;object-fit:cover;opacity:.88;transition:transform .5s ease,opacity var(--transition)}
.category-card:hover img{transform:scale(1.06);opacity:.72}
.category-body{
  position:absolute;left:0;right:0;bottom:0;padding:36px 24px 22px;
  background:linear-gradient(to top,rgba(15,23,42,.94),rgba(15,23,42,.35) 70%,transparent);
  color:#fff;
}
.category-body .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.tag{
  display:inline-block;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.22);
  padding:3px 12px;border-radius:100px;backdrop-filter:blur(4px);
}
.category-body h3{font-size:20px;font-weight:700;margin-bottom:6px}
.category-body p{font-size:13px;color:rgba(255,255,255,.75);line-height:1.65;max-width:100%}
.category-body .go-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--accent-2);margin-top:10px}
@media(max-width:900px){.category-grid{grid-template-columns:1fr;gap:18px}.category-card img{height:220px}}

/* ========== 深色数据面板 ========== */
.stats-dark{
  background:linear-gradient(120deg,rgba(15,23,42,.96),rgba(30,41,59,.95)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:#fff;position:relative;overflow:hidden;
}
.stats-dark .section-eyebrow{color:var(--accent-2);background:rgba(245,158,11,.12)}
.stats-dark .section-title{color:#fff}
.stats-dark .section-desc{color:rgba(255,255,255,.65)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{
  text-align:center;padding:38px 20px;border-radius:20px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  transition:transform var(--transition),background var(--transition);
}
.stat-item:hover{transform:translateY(-6px);background:rgba(255,255,255,.09)}
.stat-item b{font-size:44px;font-weight:800;display:block;color:var(--accent-2)}
.stat-item span{font-size:14px;color:rgba(255,255,255,.72)}
@media(max-width:900px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.stat-item b{font-size:34px}}

/* ========== 最新信息列表 ========== */
.latest{
  background:var(--white);border-bottom:1px solid var(--border);
}
.latest-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:22px;
}
.news-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius);padding:26px;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(79,70,229,.25)}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.news-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--primary);
  background:rgba(79,70,229,.08);
  padding:4px 14px;border-radius:100px;
}
.news-date{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.news-date i{font-size:11px}
.news-card h3{font-size:18px;font-weight:700;color:var(--dark);line-height:1.5;transition:color var(--transition)}
.news-card:hover h3{color:var(--primary)}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-tip{
  grid-column:1/-1;text-align:center;padding:60px 20px;
  font-size:15px;color:var(--muted);
  background:var(--bg);border:1px dashed var(--border);border-radius:var(--radius);
}
.empty-tip i{display:block;font-size:32px;margin-bottom:12px;color:var(--primary-2)}
@media(max-width:768px){.latest-grid{grid-template-columns:1fr}}

/* ========== 热门推荐 ========== */
.playlists .rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.rec-card{
  display:block;border-radius:20px;overflow:hidden;
  background:var(--white);border:1px solid var(--border);
  box-shadow:var(--shadow);transition:transform var(--transition),box-shadow var(--transition);
}
.rec-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.rec-pic{position:relative;overflow:hidden;height:190px}
.rec-pic img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rec-card:hover .rec-pic img{transform:scale(1.07)}
.rec-pic .badge{
  position:absolute;left:16px;top:16px;
  background:rgba(15,23,42,.78);backdrop-filter:blur(8px);
  color:#fff;font-size:12px;font-weight:600;
  padding:5px 14px;border-radius:100px;
}
.rec-body{padding:22px 22px 24px}
.rec-body h3{font-size:17px;font-weight:700;color:var(--dark);line-height:1.5;margin-bottom:8px;transition:color var(--transition)}
.rec-card:hover .rec-body h3{color:var(--primary)}
.rec-body p{font-size:13px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:12px;color:var(--muted)}
.rec-meta span{display:inline-flex;align-items:center;gap:6px}
.rec-meta i{color:var(--primary-2)}
@media(max-width:900px){.rec-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.rec-grid{grid-template-columns:1fr}}

/* ========== 使用流程 ========== */
.process{background:var(--white);border-bottom:1px solid var(--border)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.process-step{
  position:relative;text-align:center;padding:36px 20px 30px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--radius);transition:transform var(--transition),box-shadow var(--transition);
}
.process-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-num{
  width:58px;height:58px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;font-size:20px;font-weight:800;
  box-shadow:0 8px 24px rgba(79,70,229,.35);
}
.process-step h3{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--dark)}
.process-step p{font-size:13px;color:var(--muted);line-height:1.7}
@media(max-width:900px){.process-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.process-grid{grid-template-columns:1fr}}

/* ========== FAQ ========== */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--white);border:1px solid var(--border);
  border-radius:18px;padding:6px 24px;transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-item[open]{border-color:rgba(79,70,229,.35);box-shadow:0 10px 32px rgba(15,23,42,.08)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;cursor:pointer;font-size:16px;font-weight:600;color:var(--dark);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--primary-2);font-size:15px;transition:transform var(--transition);flex-shrink:0}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 0 20px;color:var(--muted);font-size:14px;line-height:1.85}

/* ========== CTA ========== */
.cta{
  position:relative;
  background:linear-gradient(120deg,rgba(79,70,229,.94),rgba(99,102,241,.88)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;text-align:center;padding:88px 24px;
}
.cta-inner{max-width:680px;margin:0 auto}
.cta h2{font-size:34px;font-weight:800;line-height:1.4;margin-bottom:14px}
.cta p{font-size:15px;color:rgba(255,255,255,.85);margin-bottom:30px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta .btn-light{background:#fff}
.btn-accent{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:var(--dark);font-weight:700;font-size:15px;
  padding:13px 30px;border-radius:100px;
  box-shadow:0 8px 26px rgba(245,158,11,.35);
  transition:transform var(--transition),box-shadow var(--transition);
}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 12px 34px rgba(245,158,11,.45);color:var(--dark)}
@media(max-width:520px){.cta h2{font-size:26px}.cta-btns .btn-light,.cta-btns .btn-accent{width:100%;justify-content:center}}

/* ========== 页脚 ========== */
.site-footer{background:var(--dark);color:#cbd5e1;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand .logo-mark i{font-size:17px}
.footer-brand p{font-size:14px;line-height:1.85;color:#94a3b8;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:#94a3b8;display:inline-flex;align-items:center;gap:8px;transition:color var(--transition),padding-left var(--transition)}
.footer-col ul a:hover{color:var(--accent-2);padding-left:4px}
.footer-col ul a i{font-size:11px;color:var(--primary-2)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0;font-size:13px;color:#94a3b8;
}
.footer-bottom a{color:#94a3b8}
.footer-bottom a:hover{color:var(--accent-2)}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr;gap:32px}}
@media(max-width:520px){.footer-bottom{flex-direction:column;text-align:center}}

/* ========== 通用状态 ========== */
:focus-visible{outline:3px solid rgba(79,70,229,.4);outline-offset:2px;border-radius:6px}
::selection{background:rgba(79,70,229,.18);color:var(--dark)}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #1d4ed8;
  --primary-dark: #1e3a8a;
  --primary-light: #dbeafe;
  --accent: #f97316;
  --accent-dark: #ea580c;
  --bg: #f6f8fc;
  --surface: #ffffff;
  --dark: #0b1120;
  --dark-soft: #182238;
  --text: #111827;
  --text-light: #4b5563;
  --muted: #6b7280;
  --border: #e5e7eb;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(15, 23, 42, .07);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
  --space: clamp(56px, 8vw, 100px);
}

/* ============ 基础重置 ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; border: none; outline: none; background: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space) 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head .over-label {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary);
  font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 100px;
  margin-bottom: 14px; letter-spacing: .5px;
}
.section-head h2 { font-size: clamp(26px, 3.6vw, 40px); color: var(--text); }
.section-head p { color: var(--muted); font-size: 16px; margin-top: 12px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 26px; border-radius: 100px; font-weight: 600; font-size: 15px;
  cursor: pointer; transition: all .3s ease; border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 20px rgba(29, 78, 216, .3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(29, 78, 216, .35); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(29, 78, 216, .25); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(249, 115, 22, .3); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(249, 115, 22, .35); }
.btn-outline { border-color: var(--border); color: var(--text); background: var(--surface); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-header { padding: 8px 20px; font-size: 14px; background: var(--accent); color: #fff; }
.btn-header:hover { background: var(--accent-dark); transform: translateY(-1px); }

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(29, 78, 216, .4);
  outline-offset: 2px;
}

/* ============ 头部 & 导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-top {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 14px 24px; max-width: 1200px; margin: 0 auto;
}
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  color: #fff; font-size: 18px;
  box-shadow: 0 6px 16px rgba(29, 78, 216, .3);
}
.logo-text { font-size: 22px; letter-spacing: .5px; color: var(--text); white-space: nowrap; }
.logo-text b { color: var(--primary); font-weight: 800; }

.header-search { flex: 1; max-width: 420px; margin: 0 16px; }
.header-search form {
  display: flex; align-items: center; background: #f1f5f9;
  border-radius: 100px; padding: 6px 8px 6px 20px;
  border: 1px solid transparent; transition: all .3s;
}
.header-search form:focus-within { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(29, 78, 216, .08); }
.header-search input { flex: 1; background: transparent; color: var(--text); font-size: 14px; }
.header-search input::placeholder { color: #94a3b8; }
.header-search button {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background .3s;
}
.header-search button:hover { background: var(--primary-dark); }

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

.main-nav {
  background: #fff; border-top: 1px solid #f1f5f9;
}
.nav-scroll {
  display: flex; align-items: center; gap: 8px; overflow-x: auto;
  padding: 10px 24px; scrollbar-width: none; -ms-overflow-style: none;
}
.nav-scroll::-webkit-scrollbar { display: none; }
.nav-tab {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 600; color: var(--text-light);
  transition: all .3s; white-space: nowrap;
  border: 1px solid transparent;
}
.nav-tab i { font-size: 13px; color: var(--muted); transition: color .3s; }
.nav-tab:hover { color: var(--primary); background: var(--primary-light); }
.nav-tab:hover i { color: var(--primary); }
.nav-tab.active {
  background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(29, 78, 216, .28);
}
.nav-tab.active i { color: #fff; }

/* 移动端菜单按钮 */
.nav-toggle { display: none; }

/* ============ 页内 Banner ============ */
.page-banner {
  position: relative; padding: 80px 0 60px; overflow: hidden;
  background-color: #0b1120;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(11, 17, 32, .88) 0%, rgba(11, 17, 32, .65) 50%, rgba(11, 17, 32, .35) 100%);
}
.page-banner .container { position: relative; z-index: 2; }

.crumbs {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  color: rgba(255, 255, 255, .7); font-size: 13px; margin-bottom: 20px;
}
.crumbs a { transition: color .3s; }
.crumbs a:hover { color: #fbbf24; }
.crumbs .sep { opacity: .5; }
.crumbs .current { color: #fbbf24; }

.page-banner h1 {
  font-size: clamp(30px, 5vw, 54px); color: #fff; font-weight: 800;
  letter-spacing: 1px; line-height: 1.2; margin-bottom: 18px;
}
.page-banner h1 .highlight { color: #fbbf24; }
.banner-desc {
  color: rgba(255, 255, 255, .85); font-size: 16px; max-width: 640px; margin-bottom: 36px;
}

.banner-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  max-width: 800px;
}
.stat-card {
  background: rgba(255, 255, 255, .1); backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, .14); border-radius: var(--radius);
  padding: 22px 18px; text-align: center;
}
.stat-num { font-size: 32px; font-weight: 800; color: #fbbf24; line-height: 1.2; }
.stat-label { font-size: 13px; color: rgba(255, 255, 255, .75); margin-top: 4px; }

/* ============ 标签过滤器 ============ */
.filter-wrap { margin-top: -26px; position: relative; z-index: 5; }
.filter-bar {
  background: var(--surface); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 18px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.filter-bar .filter-label {
  font-size: 14px; font-weight: 700; color: var(--text);
  display: inline-flex; align-items: center; gap: 6px; margin-right: 4px;
}
.filter-bar .filter-label i { color: var(--primary); }
.tag-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 18px; border-radius: 100px; font-size: 13px; font-weight: 600;
  color: var(--text-light); background: #f1f5f9; cursor: pointer;
  transition: all .3s; border: 1px solid transparent;
}
.tag-pill:hover { color: var(--primary); background: var(--primary-light); }
.tag-pill.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(29, 78, 216, .25); }
.tag-pill i { font-size: 12px; }

/* ============ 动态列表 ============ */
.news-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.news-card {
  background: var(--surface); border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--border);
  transition: transform .35s ease, box-shadow .35s ease;
  display: flex; flex-direction: column; height: 100%;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-thumb { position: relative; overflow: hidden; aspect-ratio: 16 / 9; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11, 17, 32, .35));
}
.news-tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
  padding: 5px 14px; border-radius: 100px; backdrop-filter: blur(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .2);
}
.news-card-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.news-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.news-meta i { font-size: 12px; }
.news-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: #cbd5e1; }
.news-card-body h3 { font-size: 18px; margin-bottom: 10px; }
.news-card-body h3 a { color: var(--text); transition: color .3s; }
.news-card-body h3 a:hover { color: var(--primary); }
.news-card-body p { font-size: 14px; color: var(--muted); flex: 1; }
.news-link {
  margin-top: 16px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--primary);
  transition: gap .3s;
}
.news-link:hover { gap: 12px; }

/* ============ 数据区块（深色） ============ */
.stats-section {
  position: relative; background-color: var(--dark); overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
}
.stats-section::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(11, 17, 32, .94), rgba(30, 58, 138, .72));
}
.stats-section .container { position: relative; z-index: 2; }
.stats-intro { text-align: center; color: #fff; max-width: 640px; margin: 0 auto 44px; }
.stats-intro h2 { font-size: clamp(26px, 3.6vw, 38px); margin-bottom: 12px; color: #fff; }
.stats-intro p { color: rgba(255, 255, 255, .7); }

.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.big-stat {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius); padding: 32px 20px; text-align: center;
  backdrop-filter: blur(6px); transition: background .3s, transform .3s;
}
.big-stat:hover { background: rgba(255, 255, 255, .1); transform: translateY(-4px); }
.big-stat .num { font-size: 42px; font-weight: 800; color: #fbbf24; line-height: 1.1; }
.big-stat .label { color: rgba(255, 255, 255, .75); font-size: 14px; margin-top: 6px; }
.big-stat .sub { color: rgba(255, 255, 255, .5); font-size: 12px; margin-top: 2px; }

/* ============ 本周重点 ============ */
.feature-grid {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px;
}
.feature-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4 / 3; min-height: 320px; display: flex; align-items: flex-end;
  box-shadow: var(--shadow); transition: transform .4s ease, box-shadow .4s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.feature-card:hover img { transform: scale(1.05); }
.feature-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(11, 17, 32, .85));
}
.f-card-content { position: relative; z-index: 2; padding: 30px; color: #fff; }
.f-card-tag {
  display: inline-block; background: var(--accent); color: #fff;
  font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 100px; margin-bottom: 10px;
}
.f-card-content h3 { font-size: 22px; margin-bottom: 8px; color: #fff; }
.f-card-content p { font-size: 14px; color: rgba(255, 255, 255, .8); margin-bottom: 14px; }
.f-card-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; color: #fbbf24; transition: gap .3s;
}
.f-card-btn:hover { gap: 12px; }

/* ============ 时间线 ============ */
.timeline-section { background: #fff; }
.timeline {
  position: relative; max-width: 800px; margin: 0 auto; padding-left: 28px;
}
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 4px; bottom: 4px;
  width: 2px; background: linear-gradient(180deg, var(--primary), var(--accent), transparent);
}
.timeline-item { position: relative; padding-bottom: 36px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: -28px; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 4px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(29, 78, 216, .1);
}
.timeline-date {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary);
  font-size: 13px; font-weight: 700; padding: 4px 14px; border-radius: 100px; margin-bottom: 8px;
}
.timeline-item h3 { font-size: 18px; margin-bottom: 4px; }
.timeline-item p { font-size: 14px; color: var(--muted); max-width: 620px; }

/* ============ FAQ ============ */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 14px; overflow: hidden;
  transition: box-shadow .3s;
}
.faq-item.active { box-shadow: var(--shadow); border-color: var(--primary-light); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text);
  cursor: pointer; text-align: left; transition: color .3s;
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  background: var(--primary-light); color: var(--primary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px; transition: all .3s;
}
.faq-item.active .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .35s ease;
  font-size: 14px; color: var(--muted); line-height: 1.8;
}
.faq-item.active .faq-a { max-height: 300px; }
.faq-a-inner { padding: 0 24px 22px; }

/* ============ CTA 区块 ============ */
.cta-block {
  position: relative; padding: 70px 0; overflow: hidden;
  background-color: var(--primary-dark);
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover; background-position: center;
}
.cta-block::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(30, 58, 138, .92), rgba(29, 78, 216, .78));
}
.cta-inner { position: relative; z-index: 2; text-align: center; color: #fff; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(24px, 3.4vw, 36px); margin-bottom: 14px; color: #fff; }
.cta-inner p { color: rgba(255, 255, 255, .85); margin-bottom: 28px; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============ 页脚 ============ */
.site-footer {
  background: var(--dark); color: rgba(255, 255, 255, .7);
  padding: 60px 0 0; position: relative; overflow: hidden;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px;
  padding-bottom: 44px; border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; color: rgba(255, 255, 255, .6); max-width: 360px; }
.footer-col h4 {
  color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px;
  position: relative; padding-bottom: 10px;
}
.footer-col h4::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 30px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: rgba(255, 255, 255, .65); transition: all .3s;
}
.footer-col ul li a i { font-size: 10px; color: var(--primary); transition: transform .3s; }
.footer-col ul li a:hover { color: #fbbf24; transform: translateX(4px); }
.footer-col ul li a:hover i { transform: translateX(2px); color: #fbbf24; }

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  padding: 22px 0; font-size: 13px; color: rgba(255, 255, 255, .4);
}
.footer-bottom a { color: rgba(255, 255, 255, .6); transition: color .3s; }
.footer-bottom a:hover { color: #fbbf24; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { aspect-ratio: 16 / 9; min-height: 260px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .banner-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .header-top { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
  .header-search { order: 3; flex-basis: 100%; max-width: 100%; margin: 0; }
  .nav-scroll { padding: 8px 16px; gap: 6px; }
  .nav-tab { padding: 7px 14px; font-size: 13px; }
  .page-banner { padding: 60px 0 44px; }
  .banner-desc { font-size: 15px; }
  .filter-bar { padding: 12px 14px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section { padding: 44px 0; }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .big-stat { padding: 24px 12px; }
  .big-stat .num { font-size: 32px; }
  .banner-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
  .stat-card { padding: 16px 10px; }
  .stat-num { font-size: 26px; }
  .page-banner h1 { font-size: 28px; }
  .section-head { margin-bottom: 28px; }
  .logo-text { font-size: 19px; }
  .header-cta .btn-header { padding: 7px 16px; font-size: 13px; }
  .feature-card { aspect-ratio: 4 / 5; min-height: 280px; }
  .f-card-content { padding: 20px; }
  .f-card-content h3 { font-size: 18px; }
  .timeline { padding-left: 20px; }
  .timeline-item::before { left: -23px; width: 16px; height: 16px; }
  .faq-q { font-size: 15px; padding: 16px 18px; }
  .faq-a-inner { padding: 0 18px 18px; }
  .cta-btns { flex-direction: column; }
  .cta-btns .btn { width: 100%; }
}

/* roulang page: article */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-soft: #eff6ff;
  --accent: #f97316;
  --accent-dark: #c2410c;
  --dark: #0b1120;
  --dark-soft: #111c33;
  --bg: #f4f7fc;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --font: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-num: 'Rajdhani', 'Noto Sans SC', sans-serif;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow: 0 12px 32px rgba(15, 23, 42, .08);
  --shadow-lg: 0 24px 56px rgba(15, 23, 42, .12);
  --space: clamp(40px, 7vw, 88px);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: var(--font); font-size: 1rem; }
::selection { background: var(--primary); color: #fff; }
:focus-visible { outline: 3px solid rgba(37, 99, 235, .45); outline-offset: 2px; border-radius: 6px; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; position: relative; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .95rem;
  border: 0;
  cursor: pointer;
  text-decoration: none;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn i { font-size: .95em; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 22px rgba(37, 99, 235, .3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(37, 99, 235, .38); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 8px 22px rgba(249, 115, 22, .3); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(249, 115, 22, .4); }
.btn-light { background: #fff; color: var(--dark); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(255, 255, 255, .2); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, .35); }
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, .1); transform: translateY(-2px); }
.btn-sm { padding: 9px 20px; font-size: .88rem; }
.btn-block { width: 100%; }
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 8px 30px rgba(15, 23, 42, .08); }
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0 12px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 8px 20px rgba(37, 99, 235, .32);
}
.logo-text { color: var(--text); font-weight: 900; letter-spacing: .5px; }
.logo-text b { color: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px 8px 16px;
  width: 260px;
  transition: border-color .2s, box-shadow .2s;
}
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .15); }
.header-search > i { color: var(--muted); font-size: .9rem; }
.header-search input {
  border: 0;
  outline: 0;
  background: transparent;
  flex: 1;
  min-width: 0;
  font-size: .88rem;
  color: var(--text);
}
.header-search input::placeholder { color: #94a3b8; }
.header-search button {
  background: transparent;
  border: 0;
  color: var(--primary);
  cursor: pointer;
  font-size: .88rem;
  padding: 2px 4px;
  transition: transform .2s;
}
.header-search button:hover { transform: translateX(3px); }
.nav-scroll {
  display: flex;
  gap: 8px;
  align-items: center;
  overflow-x: auto;
  padding-bottom: 12px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.nav-scroll::-webkit-scrollbar { display: none; }
.nav-tab {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--text);
  font-weight: 600;
  font-size: .9rem;
  border: 1px solid transparent;
  transition: all .22s ease;
}
.nav-tab i { color: var(--primary); transition: color .22s; }
.nav-tab:hover { background: var(--primary-soft); color: var(--primary); transform: translateY(-1px); }
.nav-tab.active { background: var(--primary); color: #fff; box-shadow: 0 8px 22px rgba(37, 99, 235, .3); }
.nav-tab.active i { color: #fff; }
/* Page Banner */
.page-banner {
  padding: 84px 0 64px;
  color: #fff;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 12, 26, .82), rgba(37, 99, 235, .45) 70%, rgba(124, 58, 237, .3));
}
.page-banner .container { z-index: 2; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  opacity: .85;
  margin-bottom: 18px;
}
.breadcrumb a { color: #e2e8f0; transition: color .2s; }
.breadcrumb a:hover { color: #fff; text-decoration: underline; }
.breadcrumb i { font-size: .7rem; color: rgba(255, 255, 255, .6); }
.breadcrumb span { color: #fcd34d; max-width: 480px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.page-banner h1 {
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.35;
  max-width: 920px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, .4);
  word-break: break-word;
}
.article-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; align-items: center; }
.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: .82rem;
  color: #f1f5f9;
}
.meta-badge i { color: #fcd34d; }
.banner-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 34px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .16);
  max-width: 560px;
}
.b-stat .num {
  font-family: var(--font-num);
  font-size: 1.7rem;
  font-weight: 700;
  color: #fcd34d;
  line-height: 1;
}
.b-stat .label { display: block; font-size: .78rem; color: rgba(255, 255, 255, .65); margin-top: 4px; letter-spacing: .5px; }
/* Article Main */
.article-section { padding: var(--space) 0; }
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 30px;
  align-items: start;
}
.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: clamp(24px, 4vw, 48px);
  overflow: hidden;
}
.article-body { font-size: 1.02rem; line-height: 1.95; color: #334155; word-break: break-word; }
.article-body h2, .article-body h3, .article-body h4 { color: var(--text); font-weight: 800; line-height: 1.4; }
.article-body h2 { font-size: 1.42rem; margin: 2.2rem 0 1rem; padding-bottom: .5rem; border-bottom: 2px solid #f1f5f9; position: relative; }
.article-body h2::before { content: ''; position: absolute; left: 0; bottom: -2px; width: 60px; height: 2px; background: var(--accent); }
.article-body h3 { font-size: 1.18rem; margin: 1.8rem 0 .8rem; padding-left: 12px; border-left: 4px solid var(--primary); }
.article-body p { margin-bottom: 1.2rem; }
.article-body img { max-width: 100%; border-radius: var(--radius); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
.article-body ul, .article-body ol { margin: 1rem 0 1.4rem 1.4rem; }
.article-body ul li { list-style: disc; margin-bottom: .55rem; }
.article-body ol li { list-style: decimal; margin-bottom: .55rem; }
.article-body li::marker { color: var(--primary); font-weight: 700; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: #fffbeb;
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  color: #78350f;
  margin: 1.6rem 0;
  font-style: italic;
}
.article-body a { color: var(--primary); font-weight: 500; border-bottom: 1px solid rgba(37, 99, 235, .3); }
.article-body a:hover { color: var(--primary-dark); border-bottom-color: var(--primary-dark); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.6rem 0; font-size: .94rem; }
.article-body th, .article-body td { padding: 12px 14px; border: 1px solid var(--border); text-align: left; }
.article-body th { background: var(--dark-soft); color: #fff; font-weight: 700; }
.article-body tr:nth-child(even) td { background: #f8fafc; }
.article-body code { background: #f1f5f9; color: #be185d; font-size: .9em; padding: 2px 7px; border-radius: 6px; font-family: Consolas, Monaco, monospace; }
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border); }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 600;
  transition: background .2s, transform .2s;
}
.tag:hover { background: #dbeafe; transform: translateY(-1px); }
.article-share { display: flex; align-items: center; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.article-share span { font-size: .9rem; color: var(--muted); font-weight: 600; }
.share-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  color: var(--text);
  font-size: .95rem;
  border: 1px solid var(--border);
  transition: all .22s ease;
}
.share-btn:hover { transform: translateY(-3px); }
.share-btn.weixin:hover { background: #07c160; color: #fff; border-color: #07c160; }
.share-btn.weibo:hover { background: #e6162d; color: #fff; border-color: #e6162d; }
.share-btn.qq:hover { background: #12b7f5; color: #fff; border-color: #12b7f5; }
.share-btn.link:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
/* Not found */
.not-found { text-align: center; padding: 60px 20px; }
.nf-icon {
  width: 84px; height: 84px; margin: 0 auto 22px;
  border-radius: 50%;
  background: #fef2f2;
  color: #ef4444;
  font-size: 34px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 30px rgba(239, 68, 68, .18);
}
.not-found h3 { font-size: 1.55rem; color: var(--text); margin-bottom: 10px; }
.not-found p { color: var(--muted); margin-bottom: 28px; max-width: 380px; margin-left: auto; margin-right: auto; }
/* Sidebar */
.article-sidebar { position: sticky; top: 148px; display: grid; gap: 22px; }
.side-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.side-card h3 {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card h3 i { color: var(--primary); }
.side-card h3::after { content: ''; flex: 1; height: 1px; background: var(--border); margin-left: 6px; }
.side-list { display: grid; gap: 8px; }
.side-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  font-size: .9rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all .2s ease;
}
.side-list a i { color: var(--primary); width: 18px; text-align: center; }
.side-list a .count { margin-left: auto; color: var(--muted); font-size: .78rem; }
.side-list a:hover { background: var(--primary-soft); color: var(--primary-dark); transform: translateX(4px); border-color: rgba(37, 99, 235, .2); }
.hot-list a { padding: 10px 12px; gap: 12px; }
.hot-rank {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
  min-width: 24px;
  text-align: center;
}
.hot-list a:nth-child(1) .hot-rank { color: var(--accent); }
.hot-list a:nth-child(2) .hot-rank { color: #f59e0b; }
.hot-list a:nth-child(3) .hot-rank { color: #10b981; }
.hot-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.hot-list .count { font-size: .72rem; }
.side-cta { overflow: hidden; padding: 0; border: 0; background: var(--dark); color: #fff; text-align: center; }
.side-cta img { width: 100%; height: 110px; object-fit: cover; opacity: .65; }
.side-cta .side-cta-body { padding: 20px 22px 24px; }
.side-cta h4 { font-size: 1.05rem; margin-bottom: 6px; }
.side-cta p { font-size: .82rem; color: rgba(255, 255, 255, .65); margin-bottom: 16px; }
.empty-line { color: var(--muted); font-size: .9rem; padding: 12px 0; text-align: center; }
/* Related */
.related-section {
  background: var(--dark);
  color: #fff;
  padding: var(--space) 0;
  position: relative;
  overflow: hidden;
}
.related-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: .08;
}
.related-section .container { position: relative; z-index: 2; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 38px; flex-wrap: wrap; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fcd34d;
  margin-bottom: 10px;
}
.section-tag::before { content: ''; width: 26px; height: 2px; background: var(--accent); border-radius: 2px; }
.section-head h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 900; }
.section-head p { color: rgba(255, 255, 255, .6); margin-top: 6px; font-size: .92rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: #fff;
  transition: all .25s ease;
}
.related-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, .28);
  box-shadow: 0 20px 44px rgba(0, 0, 0, .35);
  background: rgba(255, 255, 255, .08);
}
.related-thumb { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.related-card:hover .related-thumb img { transform: scale(1.07); }
.cat-pill {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(11, 17, 32, .72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: .74rem;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid rgba(255, 255, 255, .15);
}
.cat-pill i { color: #fcd34d; font-size: .7rem; }
.related-info { padding: 18px 22px 22px; }
.related-info h4 {
  font-size: 1rem;
  line-height: 1.55;
  font-weight: 700;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3.1em;
  transition: color .2s;
}
.related-card:hover .related-info h4 { color: #93c5fd; }
.related-info .date { display: block; margin-top: 12px; font-size: .8rem; color: rgba(255, 255, 255, .55); }
.related-info .date i { margin-right: 4px; }
/* CTA */
.cta-section {
  padding: 64px 0;
  background-image: linear-gradient(120deg, rgba(37, 99, 235, .95), rgba(79, 70, 229, .9) 55%, rgba(124, 58, 237, .9)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .07);
  top: -140px;
  right: -60px;
}
.cta-section::after {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 40px solid rgba(255, 255, 255, .05);
  bottom: -120px;
  left: -40px;
}
.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}
.cta-text h2 { color: #fff; font-size: clamp(1.35rem, 3vw, 1.9rem); font-weight: 900; margin-bottom: 8px; }
.cta-text p { color: rgba(255, 255, 255, .85); font-size: .95rem; max-width: 560px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
/* Footer */
.site-footer { background: var(--dark); color: #cbd5e1; padding: 64px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: .88rem; line-height: 1.8; color: #94a3b8; max-width: 420px; }
.footer-col h4 { color: #fff; font-size: .95rem; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-col ul { display: grid; gap: 8px; }
.footer-col a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #94a3b8;
  font-size: .88rem;
  transition: all .2s;
}
.footer-col a i { font-size: .7rem; color: var(--primary); }
.footer-col a:hover { color: #fff; transform: translateX(4px); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0;
  font-size: .82rem;
  color: #64748b;
}
.footer-bottom a { color: #94a3b8; }
.footer-bottom a:hover { color: #fff; }
/* Back top */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 99;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 0;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .32);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: all .3s ease;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--primary-dark); transform: translateY(-3px); }
/* Responsive */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; grid-template-columns: repeat(3, 1fr); align-items: stretch; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .header-search { display: none; }
  .header-actions .btn-sm { padding: 8px 15px; font-size: .82rem; }
  .page-banner { padding: 60px 0 48px; background-attachment: scroll; }
  .page-banner h1 { font-size: 1.5rem; }
  .article-card { padding: 24px; }
  .article-body { font-size: .96rem; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-box { flex-direction: column; align-items: flex-start; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { flex: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-sidebar { grid-template-columns: 1fr; }
  .breadcrumb span { max-width: 240px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-top { padding: 12px 0 10px; }
  .logo { font-size: 1.12rem; }
  .logo-mark { width: 36px; height: 36px; font-size: .95rem; border-radius: 10px; }
  .nav-tab { padding: 8px 14px; font-size: .84rem; }
  .page-banner { padding: 48px 0 38px; }
  .page-banner h1 { font-size: 1.3rem; }
  .article-card { padding: 20px; border-radius: 18px; }
  .related-grid { gap: 18px; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .cta-section { padding: 48px 0; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; }
}

/* roulang page: category2 */
:root{
  --primary:#ff6b35;
  --primary-dark:#e85721;
  --accent:#ffb623;
  --bg:#f6f7fb;
  --bg-dark:#131722;
  --bg-deep:#0d1017;
  --card:#ffffff;
  --text:#1c2333;
  --text-weak:#5b6472;
  --border:#e6e8ef;
  --border-light:#f0f2f6;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 8px 30px rgba(20,30,50,.08);
  --shadow-hover:0 16px 40px rgba(20,30,50,.14);
  --transition:.25s ease;
  --container-w:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
ul,ol{list-style:none}
button,input{font-family:inherit}
.container{max-width:var(--container-w);margin:0 auto;padding:0 24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:22px;font-weight:700;letter-spacing:.3px}
.logo-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(255,107,53,.35)}
.logo-text b{color:var(--primary);font-weight:800}
.logo-text{color:var(--text);font-weight:700}
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(15,25,45,.04)}
.header-top{display:flex;align-items:center;justify-content:space-between;padding-top:16px;padding-bottom:12px;flex-wrap:wrap;gap:12px}
.header-actions{display:flex;align-items:center;gap:14px}
.search-box{position:relative;width:240px}
.search-input{width:100%;height:40px;border:1px solid var(--border);border-radius:999px;padding:0 42px 0 16px;font-size:14px;background:var(--bg);transition:border-color var(--transition),box-shadow var(--transition)}
.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,107,53,.14)}
.search-btn{position:absolute;right:4px;top:4px;width:32px;height:32px;border:none;border-radius:50%;background:transparent;color:var(--text-weak);cursor:pointer;font-size:14px;transition:all var(--transition)}
.search-btn:hover{background:var(--primary);color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 24px;border-radius:999px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all var(--transition);white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(255,107,53,.32)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 28px rgba(255,107,53,.4)}
.btn-light{background:#fff;color:var(--text);box-shadow:0 6px 18px rgba(0,0,0,.12)}
.btn-light:hover{background:var(--border-light);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--border);background:transparent;color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-lg{padding:14px 34px;font-size:16px}
.btn-header{box-shadow:0 4px 14px rgba(255,107,53,.3)}
.nav-scroll{display:flex;gap:6px;overflow-x:auto;padding-bottom:10px;padding-top:4px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.nav-scroll::-webkit-scrollbar{height:4px}
.nav-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:99px}
.nav-tab{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;font-size:15px;font-weight:500;color:var(--text-weak);border:1px solid transparent;transition:all var(--transition);white-space:nowrap}
.nav-tab:hover{background:var(--bg);color:var(--primary)}
.nav-tab.active{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:600;box-shadow:0 6px 16px rgba(255,107,53,.3)}
.page-hero{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;padding:100px 0 90px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,16,23,.88) 20%,rgba(13,16,23,.55) 65%,rgba(13,16,23,.3));z-index:1}
.page-hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(8px);border-radius:999px;padding:7px 18px;font-size:13px;font-weight:600;letter-spacing:1.5px;margin-bottom:20px}
.hero-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.hero-title{font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-1px;margin-bottom:16px}
.hero-title span{color:var(--accent)}
.hero-desc{font-size:18px;color:rgba(255,255,255,.82);max-width:680px;line-height:1.8;margin-bottom:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px}
.section{padding:86px 0}
.section-gray{background:#fff}
.section-deep{background:var(--bg-deep);color:#fff}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-tag{display:inline-block;background:rgba(255,107,53,.1);color:var(--primary);font-size:13px;font-weight:700;letter-spacing:2px;padding:6px 18px;border-radius:999px;margin-bottom:14px}
.section-title{font-size:36px;font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:12px}
.section-desc{font-size:16px;color:var(--text-weak);line-height:1.8}
.tag-list{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:12px}
.tag-item{padding:9px 22px;border-radius:999px;background:#fff;border:1px solid var(--border);color:var(--text-weak);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition)}
.tag-item:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.tag-item.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(255,107,53,.3)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-light);box-shadow:var(--shadow);transition:transform var(--transition),box-shadow var(--transition)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.card-cover{position:relative;display:block;overflow:hidden;aspect-ratio:16/10}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-cover img{transform:scale(1.05)}
.badge{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--primary);font-size:12px;font-weight:700;padding:5px 14px;border-radius:999px;box-shadow:0 4px 12px rgba(0,0,0,.14);backdrop-filter:blur(6px)}
.card-body{padding:22px 22px 24px}
.card-title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px}
.card-title a{transition:color var(--transition)}
.card-title a:hover{color:var(--primary)}
.card-desc{font-size:14px;color:var(--text-weak);line-height:1.75;margin-bottom:16px}
.card-meta{display:flex;gap:16px;font-size:13px;color:var(--text-weak)}
.card-meta i{color:var(--primary);margin-right:4px}
.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover);position:relative}
.split-img::after{content:"";position:absolute;inset:0;background:linear-gradient(45deg,rgba(255,107,53,.12),transparent 60%)}
.split-img img{width:100%;height:100%;object-fit:cover}
.split-content h2{font-size:32px;font-weight:800;line-height:1.3;margin-bottom:16px;letter-spacing:-.5px}
.split-content p{color:var(--text-weak);font-size:16px;line-height:1.85;margin-bottom:12px}
.split-points{margin-top:20px;display:grid;gap:14px}
.split-point{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--border-light);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.split-point i{color:var(--primary);font-size:18px;margin-top:2px}
.split-point strong{display:block;font-size:16px;margin-bottom:2px}
.split-point span{font-size:14px;color:var(--text-weak)}
.stats-section{position:relative;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat fixed;padding:80px 0}
.stats-section::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,16,23,.94),rgba(15,20,30,.86));z-index:1}
.stats-section .container{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-item{text-align:center;padding:34px 20px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);backdrop-filter:blur(8px);transition:transform var(--transition),background var(--transition)}
.stat-item:hover{transform:translateY(-6px);background:rgba(255,255,255,.1)}
.stat-num{font-size:44px;font-weight:800;color:var(--accent);line-height:1.1;margin-bottom:6px;background:linear-gradient(135deg,var(--accent),#ffeda0);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:15px;color:rgba(255,255,255,.75)}
.rank-list{display:grid;gap:16px;max-width:860px;margin:0 auto}
.rank-item{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--border-light);border-radius:16px;padding:18px 22px;box-shadow:var(--shadow);transition:transform var(--transition),box-shadow var(--transition)}
.rank-item:hover{transform:translateX(6px);box-shadow:var(--shadow-hover)}
.rank-num{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 6px 16px rgba(255,107,53,.3)}
.rank-item:nth-child(2) .rank-num{background:linear-gradient(135deg,#4a8dff,#6bc5ff);box-shadow:0 6px 16px rgba(74,141,255,.3)}
.rank-item:nth-child(3) .rank-num{background:linear-gradient(135deg,#12b76a,#7ee2a8);box-shadow:0 6px 16px rgba(18,183,106,.3)}
.rank-info{flex:1}
.rank-title{font-size:17px;font-weight:700;margin-bottom:4px}
.rank-views{font-size:13px;color:var(--text-weak)}
.rank-views i{color:var(--primary);margin-right:5px}
.faq-list{display:grid;gap:16px;max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border-light);border-radius:16px;overflow:hidden;transition:box-shadow var(--transition),transform var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.faq-q{display:flex;align-items:center;gap:14px;padding:20px 24px;cursor:pointer;font-weight:700;font-size:17px}
.faq-q i{color:var(--primary);font-size:18px;flex-shrink:0}
.faq-a{padding:0 24px 22px 56px;color:var(--text-weak);font-size:15px;line-height:1.8}
.cta-box{position:relative;border-radius:calc(var(--radius-lg) + 4px);padding:56px 50px;text-align:center;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden;box-shadow:var(--shadow-hover)}
.cta-box::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,107,53,.9),rgba(255,182,35,.88));z-index:1}
.cta-inner{position:relative;z-index:2;color:#fff}
.cta-title{font-size:34px;font-weight:800;margin-bottom:12px;letter-spacing:-.5px}
.cta-desc{font-size:17px;color:rgba(255,255,255,.9);max-width:560px;margin:0 auto 28px;line-height:1.8}
.cta-box .btn-light{box-shadow:0 8px 24px rgba(0,0,0,.18)}
.cta-box .btn-outline{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.cta-box .btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff}
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.72);padding:70px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:56px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand .logo-mark{background:linear-gradient(135deg,var(--primary),var(--accent))}
.footer-brand .logo-text b{color:var(--accent)}
.footer-brand p{font-size:15px;line-height:1.85;max-width:360px}
.footer-col h4{color:#fff;font-size:17px;font-weight:700;margin-bottom:20px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:rgba(255,255,255,.65);transition:all var(--transition)}
.footer-col a:hover{color:var(--accent);transform:translateX(4px)}
.footer-col a i{font-size:12px;color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:24px 0;font-size:14px;color:rgba(255,255,255,.5);gap:12px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.7);transition:color var(--transition)}
.footer-bottom a:hover{color:var(--accent)}
@media(max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-title{font-size:44px}
  .cta-box{padding:48px 30px}
}
@media(max-width:768px){
  .section{padding:64px 0}
  .hero-title{font-size:34px}
  .hero-desc{font-size:16px}
  .page-hero{padding:76px 0}
  .split-layout{grid-template-columns:1fr;gap:36px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .stats-grid{gap:16px}
  .stat-num{font-size:34px}
  .header-top{flex-direction:column;align-items:stretch}
  .header-actions{justify-content:space-between}
  .search-box{width:100%;flex:1}
  .cta-box{padding:40px 24px}
  .cta-title{font-size:26px}
  .section-title{font-size:28px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .page-hero{padding:60px 0}
  .hero-title{font-size:28px}
  .hero-meta .btn{width:100%}
  .nav-tab{padding:8px 14px;font-size:14px}
  .stats-section{background-attachment:scroll}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat-item{padding:22px 14px}
  .stat-num{font-size:28px}
  .rank-item{flex-wrap:wrap;gap:12px;padding:16px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-box{border-radius:18px;padding:36px 16px}
  .cta-desc{font-size:15px}
}

/* roulang page: category3 */
:root {
  --primary: #ff6b2c;
  --primary-600: #f2531a;
  --primary-soft: #fff2eb;
  --deep: #0f1b2d;
  --deep-2: #182639;
  --bg: #f5f7fb;
  --white: #ffffff;
  --text: #1b2437;
  --muted: #67758b;
  --border: #e5eaf2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(15, 27, 45, 0.08);
  --shadow-lg: 0 20px 44px rgba(15, 27, 45, 0.16);
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

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

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary-600);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.25;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.5px;
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  padding: 12px 26px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #ff7a3c 0%, var(--primary) 55%, var(--primary-600) 100%);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 107, 44, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(255, 107, 44, 0.45);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn-outline:hover {
  background: #fff;
  color: var(--text);
  border-color: #fff;
}

.btn-white {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

/* ===== Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 5px 12px;
  background: var(--primary-soft);
  color: var(--primary-600);
}

.badge-gold {
  background: #fff4dd;
  color: #b97a09;
}

.badge-blue {
  background: #e8f1fe;
  color: #2768d2;
}

.badge-purple {
  background: #f2e7ff;
  color: #7a3fd1;
}

.badge-green {
  background: #e4f9ef;
  color: #128b5d;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #ff7a3c, var(--primary-600));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 8px 20px rgba(255, 107, 44, 0.32);
}

.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.3px;
}

.logo-text b {
  color: var(--primary);
  font-weight: 900;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-search {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 5px 4px 16px;
  width: 320px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, 0.12);
}

.header-search input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}

.header-search input::placeholder {
  color: #9aa6b7;
}

.header-search button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: background var(--transition);
}

.header-search button:hover {
  background: var(--primary-600);
}

/* ===== Nav Tabs ===== */
.nav-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 24px 12px;
  scrollbar-width: none;
}

.nav-scroll::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  color: var(--muted);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.nav-tab i {
  font-size: 13px;
  color: #a6b0bf;
  transition: color var(--transition);
}

.nav-tab:hover {
  background: var(--primary-soft);
  color: var(--primary-600);
}

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

.nav-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(255, 107, 44, 0.35);
}

.nav-tab.active i {
  color: #fff;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background: var(--deep) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  padding: 90px 0 96px;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(15, 27, 45, 0.95) 15%, rgba(15, 27, 45, 0.72) 55%, rgba(255, 107, 44, 0.45) 100%);
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
}

.banner-content {
  max-width: 720px;
}

.banner-content .banner-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #ffd9c5;
  font-weight: 600;
  font-size: 13px;
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 18px;
  backdrop-filter: blur(6px);
}

.banner-content h1 {
  font-size: clamp(32px, 5.4vw, 52px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.banner-content h1 span {
  color: var(--primary);
}

.banner-content p {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 30px;
  max-width: 600px;
}

.banner-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== Stats ===== */
.stats-section {
  padding: 0;
  margin-top: -46px;
  position: relative;
  z-index: 5;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  padding: 36px 28px;
}

.stat-item {
  text-align: center;
  padding: 10px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.stat-number {
  font-size: 34px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: -1px;
  line-height: 1.2;
}

.stat-label {
  margin-top: 6px;
  font-size: 14px;
  color: var(--muted);
}

/* ===== Activities ===== */
.activities-section {
  padding-top: 70px;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

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

.activity-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 107, 44, 0.25);
}

.activity-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.activity-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.activity-card:hover .activity-media img {
  transform: scale(1.06);
}

.activity-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15, 27, 45, 0.5), transparent 55%);
}

.activity-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 3;
}

.activity-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.activity-body h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.45;
}

.activity-body p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  flex: 1;
}

.activity-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #94a1b3;
  margin: 18px 0 16px;
  flex-wrap: wrap;
}

.activity-meta i {
  color: var(--primary);
}

.activity-meta .meta-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #c5cdd9;
  display: inline-block;
}

/* ===== Process ===== */
.process-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.process-item {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px 26px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.process-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.process-step {
  font-size: 38px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), #ffab73);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
}

.process-item h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 8px;
}

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

/* ===== Benefit Dark ===== */
.benefit-section {
  background: var(--deep);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.benefit-section::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 107, 44, 0.32), transparent 70%);
  top: -120px;
  right: -100px;
}

.benefit-section::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(255, 174, 122, 0.18), transparent 70%);
  bottom: -90px;
  left: -80px;
}

.benefit-section .container {
  position: relative;
  z-index: 2;
}

.benefit-section .section-head h2 {
  color: #fff;
}

.benefit-section .section-head p {
  color: rgba(255, 255, 255, 0.65);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 54px;
}

.benefit-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 32px 26px;
  backdrop-filter: blur(8px);
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.benefit-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 107, 44, 0.4);
  transform: translateY(-6px);
}

.benefit-card .benefit-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, #ff7a3c, var(--primary-600));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  color: #fff;
  margin-bottom: 18px;
  box-shadow: 0 10px 24px rgba(255, 107, 44, 0.35);
}

.benefit-card h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 12px;
}

.benefit-card ul {
  display: grid;
  gap: 8px;
}

.benefit-card ul li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
}

.benefit-card ul li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 12px;
  color: #ffb383;
}

.benefit-note {
  text-align: center;
  margin-top: 32px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(255, 107, 44, 0.35);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary .faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}

.faq-item details[open] summary .faq-icon {
  transform: rotate(180deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  padding: 0 24px 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  border-top: 1px dashed var(--border);
  margin: 0 24px 0;
  padding-top: 16px;
  padding-left: 0;
  padding-right: 0;
}

/* ===== CTA ===== */
.cta-section {
  padding: 0;
}

.cta-panel {
  position: relative;
  background: var(--deep) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius: 26px;
  overflow: hidden;
  padding: 56px 48px;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 27, 45, 0.94), rgba(255, 107, 44, 0.75));
}

.cta-panel .container {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.cta-panel h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-panel p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  margin-bottom: 28px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--deep);
  color: #b6c0cf;
  padding: 64px 0 0;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo .logo-text {
  color: #fff;
}

.footer-brand p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.9;
  color: #93a0b3;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #93a0b3;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-col a i {
  font-size: 11px;
  color: rgba(255, 107, 44, 0.7);
  transition: transform var(--transition);
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col a:hover i {
  transform: translateX(3px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 22px 0;
  font-size: 13px;
  color: #7d8a9d;
}

.footer-bottom a {
  color: #b6c0cf;
}

.footer-bottom a:hover {
  color: #ffab73;
}

/* ===== Focus ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(255, 107, 44, 0.5);
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 28px 20px;
  }

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

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
  }

  .header-search {
    width: 240px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }

  .container {
    padding: 0 18px;
  }

  .header-top-inner {
    flex-wrap: wrap;
    padding: 12px 0;
  }

  .header-search {
    display: none;
  }

  .nav-scroll {
    padding: 0 18px 12px;
  }

  .page-banner {
    padding: 64px 0 76px;
  }

  .banner-content h1 {
    font-size: 34px;
  }

  .banner-content p {
    font-size: 15px;
  }

  .stats-section {
    margin-top: -30px;
  }

  .activity-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

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

  .cta-panel {
    padding: 42px 26px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

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

  .stat-number {
    font-size: 28px;
  }

  .stat-icon {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .btn {
    width: 100%;
  }

  .banner-actions {
    flex-direction: column;
  }

  .cta-actions {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .page-banner {
    padding: 50px 0 66px;
  }
}