/* roulang page: index */
:root{
  --primary:#6C3BFF;
  --primary-dark:#4C1FD7;
  --primary-light:#EDE8FF;
  --accent:#00D49A;
  --dark:#0B0A1E;
  --body-bg:#F6F5FF;
  --white:#FFFFFF;
  --text:#181632;
  --text-weak:#6C6B87;
  --border:rgba(108,59,255,.14);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow:0 12px 40px rgba(108,59,255,.10);
  --shadow-hover:0 18px 48px rgba(108,59,255,.18);
  --transition:all .3s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--body-bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul,ol,li{list-style:none}
button,input{font:inherit;border:none;outline:none}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;flex-wrap:wrap}
.section-tag{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary-dark);font-size:13px;font-weight:600;padding:4px 16px;border-radius:40px;letter-spacing:.5px;margin-bottom:14px}
.section-head h2{font-size:36px;font-weight:800;line-height:1.25;letter-spacing:-1px}
.section-head p{color:var(--text-weak);font-size:15px;margin-top:8px;max-width:520px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:var(--radius-sm);transition:var(--transition);cursor:pointer;text-align:center;line-height:1.2}
.btn-primary{background:var(--primary);color:#fff;padding:14px 30px;font-size:15px;box-shadow:0 8px 28px rgba(108,59,255,.35)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 32px rgba(108,59,255,.45)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;padding:14px 30px;font-size:15px;border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary-dark);border:1.5px solid var(--primary);padding:10px 22px;font-size:14px}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(108,59,255,.30)}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-lg{padding:16px 38px;font-size:16px}
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 14px;border-radius:30px;font-size:12px;font-weight:600;letter-spacing:.3px}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(11,10,30,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.08);transition:var(--transition)}
.site-header.scrolled{background:rgba(11,10,30,.92);box-shadow:0 8px 30px rgba(0,0,0,.25)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff;letter-spacing:.5px;white-space:nowrap}
.brand-logo i{color:var(--accent);font-size:22px}
.site-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;padding:10px 18px;color:rgba(255,255,255,.78);font-size:15px;font-weight:500;border-radius:10px;transition:var(--transition)}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.10)}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{content:'';position:absolute;left:18px;right:18px;bottom:4px;height:2px;background:var(--accent);border-radius:2px}
.header-tools{display:flex;align-items:center;gap:12px}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{width:220px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);border-radius:40px;padding:9px 38px 9px 16px;color:#fff;font-size:13px;transition:var(--transition)}
.search-box input::placeholder{color:rgba(255,255,255,.55)}
.search-box input:focus{background:rgba(255,255,255,.18);border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,212,154,.15)}
.search-box i{position:absolute;right:14px;color:rgba(255,255,255,.55);font-size:13px;pointer-events:none}
.nav-toggle{display:none;background:rgba(255,255,255,.12);border-radius:10px;width:42px;height:42px;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;border:1px solid rgba(255,255,255,.16)}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:var(--transition)}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--dark) center/cover no-repeat;color:#fff;overflow:hidden}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,10,30,.94) 0%,rgba(11,10,30,.72) 45%,rgba(108,59,255,.25) 100%)}
.hero-content{position:relative;z-index:2;padding:150px 0 120px;max-width:850px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);padding:8px 20px;border-radius:40px;font-size:13px;font-weight:600;letter-spacing:.8px;backdrop-filter:blur(10px)}
.hero-badge i{color:var(--accent)}
.hero h1{font-size:56px;font-weight:800;line-height:1.22;letter-spacing:-2px;margin:26px 0 20px}
.hero h1 span.gradient-text{background:linear-gradient(90deg,var(--accent),#5BC8FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:rgba(255,255,255,.8);max-width:640px;line-height:1.8;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap}
.hero-tags span{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:6px 16px;border-radius:30px;font-size:13px;color:rgba(255,255,255,.85)}
.hero-tags span i{color:var(--accent);font-size:12px}

/* 平台亮点 */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);padding:32px 26px;transition:var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:54px;height:54px;border-radius:14px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:22px;color:var(--primary-dark)}
.feature-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-weak);line-height:1.75}

/* 分类入口 */
.category-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.category-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:360px;display:flex;align-items:flex-end;box-shadow:var(--shadow);transition:var(--transition)}
.category-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .5s ease}
.category-card:hover img{transform:scale(1.06)}
.category-card .cate-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,10,30,.05) 0%,rgba(11,10,30,.88) 100%);z-index:1}
.category-card .cate-content{position:relative;z-index:2;padding:38px 34px;color:#fff}
.category-card .cate-tag{display:inline-block;background:var(--accent);color:#06281E;font-size:12px;font-weight:700;padding:4px 14px;border-radius:30px;letter-spacing:.5px;margin-bottom:16px}
.category-card h3{font-size:26px;font-weight:800;margin-bottom:8px}
.category-card p{font-size:14px;color:rgba(255,255,255,.85);max-width:420px;line-height:1.7;margin-bottom:20px}
.cate-btn{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#fff;border:1.5px solid rgba(255,255,255,.5);padding:10px 24px;border-radius:30px;transition:var(--transition)}
.cate-btn:hover{background:#fff;color:var(--dark)}

/* 数据统计 */
.stats-section{background:var(--dark) url(/assets/images/backpic/back-3.png) center/cover no-repeat;color:#fff;position:relative}
.stats-section::before{content:'';position:absolute;inset:0;background:rgba(11,10,30,.88)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center;position:relative;z-index:2}
.stat-item{padding:24px 16px}
.stat-num{font-size:48px;font-weight:800;letter-spacing:-2px;background:linear-gradient(90deg,var(--accent),#5BC8FF);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:8px}
.stat-hr{width:320px;height:1px;background:rgba(255,255,255,.15);margin:40px auto 0}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.news-card-cover{position:relative;height:180px;overflow:hidden}
.news-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-card-cover img{transform:scale(1.06)}
.news-badge{position:absolute;top:14px;left:14px;background:rgba(108,59,255,.92);color:#fff;padding:4px 14px;border-radius:30px;font-size:12px;font-weight:600}
.news-card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.news-card-body h3{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px}
.news-card-body p{font-size:13px;color:var(--text-weak);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-weak);border-top:1px solid rgba(108,59,255,.08);padding-top:14px}
.read-more{color:var(--primary-dark);font-weight:600;transition:var(--transition)}
.news-card:hover .read-more{color:var(--primary);gap:4px}
.empty-tip{grid-column:1/-1;text-align:center;padding:60px 20px;background:var(--white);border-radius:var(--radius-md);border:1px dashed var(--border);color:var(--text-weak);font-size:15px}

/* 流程 */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative}
.step-item{position:relative;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);padding:32px 24px;transition:var(--transition)}
.step-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-num{position:absolute;top:-14px;left:24px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:20px;font-weight:800;width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(108,59,255,.4)}
.step-item h3{font-size:17px;font-weight:700;margin:18px 0 8px}
.step-item p{font-size:14px;color:var(--text-weak);line-height:1.7}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:16px;transition:var(--transition);overflow:hidden}
.faq-item:hover{border-color:var(--primary)}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;font-size:16px;font-weight:600;cursor:pointer;transition:var(--transition)}
.faq-question i{color:var(--primary);font-size:15px;transition:transform .3s ease;flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer-inner{padding:0 26px 24px;color:var(--text-weak);font-size:14px;line-height:1.8;border-top:1px dashed var(--border);padding-top:16px}

/* CTA */
.cta-section{position:relative;background:var(--dark) url(/assets/images/backpic/back-2.png) center/cover no-repeat;color:#fff;text-align:center;padding:100px 0}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(108,59,255,.55);mix-blend-mode:multiply}
.cta-inner{position:relative;z-index:2}
.cta-inner h2{font-size:40px;font-weight:800;letter-spacing:-1px;margin-bottom:14px}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.85);max-width:600px;margin:0 auto 32px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--primary-dark);padding:14px 34px;font-size:15px;border-radius:12px;font-weight:700;transition:var(--transition);box-shadow:0 8px 28px rgba(0,0,0,.2)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(0,0,0,.3)}
.btn-line{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6);padding:14px 34px;font-size:15px;border-radius:12px;font-weight:600;transition:var(--transition)}
.btn-line:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* Footer */
.site-footer{background:#080719;color:rgba(255,255,255,.75);padding-top:80px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;padding-bottom:48px}
.footer-brand .brand-logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.6)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-contact p{font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.6)}
.footer-contact i{color:var(--accent);margin-right:10px;width:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;font-size:13px;color:rgba(255,255,255,.45);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:78px 0}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .search-box{display:none}
  .site-nav{gap:2px}
  .nav-link{padding:10px 12px;font-size:14px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:64px}
  .nav-toggle{display:flex}
  .site-nav{position:fixed;top:64px;left:0;right:0;background:rgba(11,10,30,.98);flex-direction:column;align-items:stretch;padding:16px 20px 24px;gap:6px;transform:translateY(-130%);transition:transform .35s ease;border-bottom:1px solid rgba(255,255,255,.1)}
  .site-nav.open{transform:translateY(0)}
  .nav-link{padding:14px 16px;font-size:16px}
  .nav-link.active::after{display:none}
  .header-tools .btn-sm{display:none}
  .hero{min-height:auto}
  .hero-content{padding:140px 0 80px}
  .hero h1{font-size:36px;letter-spacing:-1px}
  .hero p{font-size:16px}
  .section-head h2{font-size:28px}
  .category-grid,.news-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-inner h2{font-size:30px}
}
@media (max-width:520px){
  .section{padding:60px 0}
  .feature-grid,.stats-grid,.steps-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .hero-badge{font-size:12px}
  .hero-actions .btn{width:100%;padding:14px}
  .category-card{min-height:300px}
  .category-card .cate-content{padding:28px 22px}
  .category-card h3{font-size:22px}
  .news-card-cover{height:200px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category1 */
:root {
  --primary: #625bf6;
  --primary-dark: #4a43d9;
  --primary-light: #eceaff;
  --primary-soft: #f5f4ff;
  --accent: #f5a623;
  --accent-light: #fff5e6;
  --bg: #ffffff;
  --bg-alt: #f7f8fd;
  --bg-dark: #141432;
  --text: #171a36;
  --text-muted: #5e627d;
  --border: #e5e7f2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 16px rgba(23, 26, 54, .06);
  --shadow: 0 14px 44px rgba(23, 26, 54, .09);
  --shadow-lg: 0 26px 74px rgba(23, 26, 54, .14);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --transition: all .28s cubic-bezier(.4, 0, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.65; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; color: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.container-lg { max-width: 1320px; margin: 0 auto; padding: 0 28px; }

/* 徽章 */
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; background: var(--primary-light); color: var(--primary-dark); white-space: nowrap; }
.badge-accent { background: var(--accent-light); color: #b86e00; }
.badge-dark { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.2); }

/* 区块标题 */
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.sec-head .badge { margin-bottom: 16px; }
.sec-head h2 { font-size: clamp(30px, 4vw, 42px); font-weight: 800; letter-spacing: -1px; line-height: 1.25; margin-bottom: 14px; }
.sec-head p { color: var(--text-muted); font-size: 16px; }

/* 通用按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; cursor: pointer; font-weight: 600; border-radius: 12px; transition: var(--transition); text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; padding: 13px 28px; font-size: 15px; box-shadow: 0 8px 24px rgba(98, 91, 246, .3); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 32px rgba(98, 91, 246, .4); outline: none; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 14px rgba(98, 91, 246, .25); }
.btn-outline { background: transparent; color: var(--primary-dark); border: 1.5px solid #d8d5ff; padding: 11px 24px; font-size: 14px; }
.btn-outline:hover, .btn-outline:focus-visible { border-color: var(--primary); background: var(--primary-light); color: var(--primary-dark); outline: none; }
.btn-sm { padding: 9px 20px; font-size: 13px; border-radius: 10px; }
.btn-lg { padding: 16px 38px; font-size: 16px; border-radius: 14px; }

/* 头部导航 */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .9); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(229, 231, 242, .7); }
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 24px; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; color: var(--text); text-decoration: none; letter-spacing: -.5px; }
.brand-logo i { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: 11px; background: linear-gradient(135deg, var(--primary), #7f76ff); color: #fff; font-size: 18px; box-shadow: 0 6px 16px rgba(98, 91, 246, .3); }
.brand-logo:hover { color: var(--text); }
.site-nav { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 10px 18px; border-radius: 10px; font-size: 15px; font-weight: 500; color: var(--text-muted); text-decoration: none; position: relative; }
.nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.nav-link.active { color: var(--primary-dark); background: var(--primary-light); font-weight: 600; }
.header-tools { display: flex; align-items: center; gap: 14px; }
.search-box { position: relative; width: 210px; }
.search-box input { width: 100%; height: 42px; border: 1.5px solid var(--border); background: var(--bg-alt); border-radius: 999px; padding: 0 44px 0 18px; font-size: 14px; transition: var(--transition); }
.search-box input:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(98, 91, 246, .12); }
.search-box input::placeholder { color: #9fa3bd; }
.search-box i { position: absolute; right: 17px; top: 50%; transform: translateY(-50%); color: #9fa3bd; font-size: 14px; pointer-events: none; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 42px; height: 42px; background: transparent; border: 1.5px solid var(--border); border-radius: 10px; cursor: pointer; padding: 9px; }
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--text); border-radius: 2px; transition: var(--transition); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 页内横幅 */
.page-banner { position: relative; background-size: cover; background-position: center; padding: 96px 0 88px; isolation: isolate; }
.page-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, rgba(20, 20, 50, .93) 20%, rgba(98, 91, 246, .78) 55%, rgba(20, 20, 50, .55)); z-index: -1; }
.page-banner::after { content: ""; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='480' height='480' viewBox='0 0 480 480' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(/%23n)' opacity='.08'/%3E%3C/svg%3E"); z-index: -1; opacity: .6; }
.banner-content { max-width: 760px; }
.banner-content .badge { margin-bottom: 20px; }
.banner-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.banner-content h1 { font-size: clamp(34px, 5vw, 52px); font-weight: 800; line-height: 1.2; color: #fff; letter-spacing: -1.5px; margin-bottom: 18px; }
.banner-content h1 span { background: linear-gradient(90deg, #b9b3ff, #ffc56b); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.banner-content p { font-size: 18px; line-height: 1.8; color: rgba(255, 255, 255, .85); margin-bottom: 0; max-width: 620px; }
.banner-stats { display: flex; gap: 34px; margin-top: 40px; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, .15); }
.banner-stats .stat-item .num { font-size: 26px; font-weight: 800; color: #fff; }
.banner-stats .stat-item .label { font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 2px; }

/* 引导介绍条 */
.intro-strip { background: var(--bg-alt); border-bottom: 1px solid var(--border); padding: 20px 0; }
.intro-strip .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.intro-tip { display: flex; align-items: center; gap: 14px; color: var(--text); font-size: 15px; }
.intro-tip i { width: 36px; height: 36px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; background: var(--primary-light); color: var(--primary); font-size: 15px; }
.intro-tip strong { font-weight: 700; }
.intro-cta { display: flex; align-items: center; gap: 14px; }

/* 快速上手步骤 */
.steps-section { padding: 96px 0; background: #fff; }
.steps-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 28px; height: 100%; transition: var(--transition); position: relative; overflow: hidden; }
.steps-card::after { content: ""; position: absolute; width: 120px; height: 120px; border-radius: 50%; background: var(--primary-light); top: -48px; right: -48px; opacity: .45; }
.steps-card:hover { border-color: #ccc7ff; box-shadow: var(--shadow); transform: translateY(-6px); }
.step-num { font-size: 14px; font-weight: 700; color: var(--primary); background: var(--primary-light); display: inline-flex; width: 32px; height: 32px; border-radius: 9px; align-items: center; justify-content: center; margin-bottom: 18px; }
.steps-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.steps-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 0; }
.steps-card .step-icon { position: absolute; bottom: -10px; right: 18px; font-size: 58px; color: var(--primary-light); z-index: 0; }
.steps-card > *:not(.step-icon) { position: relative; z-index: 1; }

/* 知识卡片 */
.cards-section { padding: 96px 0; background: var(--bg-alt); }
.knowledge-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); height: 100%; display: flex; flex-direction: column; }
.knowledge-card:hover { box-shadow: var(--shadow); transform: translateY(-6px); border-color: #d6d1ff; }
.knowledge-card .card-cover { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.knowledge-card .card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.knowledge-card:hover .card-cover img { transform: scale(1.06); }
.knowledge-card .card-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(20, 20, 50, .25), transparent 60%); }
.knowledge-card .card-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.knowledge-card .card-tags { display: flex; gap: 8px; margin-bottom: 16px; }
.tag { display: inline-block; padding: 5px 13px; font-size: 12px; font-weight: 600; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); }
.tag-accent { background: var(--accent-light); color: #b86e00; }
.knowledge-card h3 { font-size: 18px; font-weight: 700; line-height: 1.45; margin-bottom: 10px; }
.knowledge-card p { color: var(--text-muted); font-size: 14px; line-height: 1.7; margin-bottom: 20px; flex: 1; }
.card-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary); }
.card-link:hover { gap: 12px; color: var(--primary-dark); }
.card-link i { font-size: 12px; }

/* 热门文章列表 */
.article-section { padding: 96px 0; background: #fff; }
.article-row { display: grid; grid-template-columns: 240px 1fr auto; gap: 28px; align-items: center; background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; transition: var(--transition); }
.article-row:hover { border-color: #d6d1ff; box-shadow: var(--shadow); transform: translateX(6px); }
.article-row .thumb { border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 4/3; }
.article-row .thumb img { width: 100%; height: 100%; object-fit: cover; }
.article-row .info .art-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--primary-dark); background: var(--primary-light); padding: 4px 12px; border-radius: 999px; margin-bottom: 10px; }
.article-row .info h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.article-row .info p { color: var(--text-muted); font-size: 14px; margin-bottom: 0; }
.article-row .read-more { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; color: var(--primary); }
.article-row .read-more i { transition: var(--transition); }
.article-row:hover .read-more i { transform: translateX(4px); }

/* FAQ 板块 */
.faq-section { padding: 96px 0; background: var(--bg-alt); }
.faq-grid { max-width: 860px; margin: 0 auto; display: grid; gap: 16px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); transition: var(--transition); }
.faq-item.active { box-shadow: var(--shadow); border-color: #d6d1ff; }
.faq-q { width: 100%; background: none; border: 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 26px; font-size: 16px; font-weight: 600; cursor: pointer; text-align: left; color: var(--text); border-radius: var(--radius-sm); }
.faq-q:hover { color: var(--primary); }
.faq-q .fa { font-size: 16px; color: var(--primary); transition: var(--transition); flex-shrink: 0; }
.faq-item.active .fa-chevron-down { transform: rotate(180deg); }
.faq-a { max-height: 0; padding: 0 26px; overflow: hidden; transition: max-height .4s ease; }
.faq-a p { padding-bottom: 22px; color: var(--text-muted); font-size: 14px; line-height: 1.8; margin: 0; }

/* CTA */
.cta-section { padding: 96px 0; background: linear-gradient(135deg, #141432 0%, #1c1c50 60%, #2b236e 100%); position: relative; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%; background: radial-gradient(circle, rgba(98, 91, 246, .45), transparent 70%); top: -160px; right: -120px; }
.cta-section::after { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(245, 166, 35, .25), transparent 70%); bottom: -120px; left: -80px; }
.cta-inner { text-align: center; position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 800; color: #fff; letter-spacing: -1px; margin-bottom: 18px; }
.cta-inner p { font-size: 17px; color: rgba(255, 255, 255, .76); line-height: 1.8; margin-bottom: 34px; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-note { margin-top: 22px; font-size: 13px; color: rgba(255, 255, 255, .45); }

/* 页脚 */
.site-footer { background: #0f0f28; color: rgba(255, 255, 255, .65); padding: 76px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 56px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand .brand-logo { color: #fff; margin-bottom: 18px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 340px; }
.footer-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 22px; position: relative; padding-bottom: 12px; }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 3px; border-radius: 3px; background: var(--primary); }
.footer-links { display: grid; gap: 12px; }
.footer-links a { color: rgba(255, 255, 255, .6); font-size: 14px; text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-contact { display: grid; gap: 14px; font-size: 14px; }
.footer-contact p { display: flex; align-items: center; gap: 12px; }
.footer-contact i { color: var(--primary); width: 18px; text-align: center; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 26px 0; font-size: 13px; color: rgba(255, 255, 255, .4); flex-wrap: wrap; }

/* 响应式 */
@media (max-width: 1023px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .article-row { grid-template-columns: 190px 1fr; }
  .header-tools .search-box { width: 170px; }
}
@media (max-width: 767px) {
  .site-nav { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 14px 28px 22px; gap: 6px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); transform: translateY(-12px); opacity: 0; visibility: hidden; pointer-events: none; transition: var(--transition); z-index: 90; }
  .site-nav.open { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
  .nav-link { padding: 13px 18px; text-align: center; }
  .header-tools .search-box { display: none; }
  .nav-toggle { display: inline-flex; }
  .page-banner { padding: 74px 0; }
  .banner-stats { gap: 22px; flex-wrap: wrap; }
  .steps-section, .cards-section, .article-section, .faq-section, .cta-section { padding: 72px 0; }
  .article-row { grid-template-columns: 150px 1fr; padding: 14px; gap: 16px; }
  .article-row .info p { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .intro-strip .container { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 519px) {
  .container { padding: 0 20px; }
  .article-row { grid-template-columns: 1fr; }
  .article-row .thumb { display: none; }
  .banner-tags { flex-direction: column; align-items: flex-start; }
  .banner-content .btn-lg { width: 100%; }
  .cta-btns .btn { width: 100%; }
  .header-inner .brand-logo { font-size: 17px; gap: 8px; }
  .header-tools .btn-sm { padding: 9px 14px; font-size: 12px; }
  .banner-stats .stat-item .num { font-size: 21px; }
}

/* roulang page: article */
:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --primary-light: #818CF8;
  --secondary: #7C3AED;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --dark-bg: #0B1220;
  --dark-bg-2: #111A2E;
  --body-bg: #F5F7FB;
  --white: #FFFFFF;
  --text-main: #1E293B;
  --text-strong: #0F172A;
  --text-weak: #64748B;
  --border: #E2E8F0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --shadow-sm: 0 2px 10px rgba(15,23,42,.06);
  --shadow-md: 0 8px 30px rgba(79,70,229,.12);
  --shadow-lg: 0 20px 50px rgba(15,23,42,.16);
  --shadow-primary: 0 10px 30px rgba(79,70,229,.28);
  --font-main: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --header-h: 76px;
  --section-space: 90px;
}

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

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

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--body-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: inline-block; vertical-align: middle; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--primary); }
button { font-family: inherit; cursor: pointer; background: none; border: none; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }

.grid-container {
  max-width: 1280px;
  padding-left: 24px;
  padding-right: 24px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  white-space: nowrap;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(79,70,229,.35);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 30px rgba(245,158,11,.3);
}
.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
}

.btn-white {
  background: #fff;
  color: var(--text-strong);
}
.btn-white:hover {
  background: #F1F5F9;
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.5);
}
.btn-outline-light:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255,255,255,.1);
  transform: translateY(-2px);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn:focus-visible {
  outline: 3px solid var(--primary-light);
  outline-offset: 3px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(226,232,240,.7);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo i {
  color: var(--primary);
  font-size: 22px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-logo:hover { color: var(--primary); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  position: relative;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  border-radius: 999px;
  transition: all .25s ease;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(79,70,229,.06);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(79,70,229,.1);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 8px 18px;
  width: 220px;
  transition: all .3s ease;
}
.search-box:hover {
  border-color: #C7D2FE;
}
.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79,70,229,.12);
  width: 260px;
}
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 14px;
  color: var(--text-main);
  width: 100%;
}
.search-box input::placeholder {
  color: #94A3B8;
}
.search-box i {
  color: #94A3B8;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  background: var(--white);
  border: 1.5px solid var(--border);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 80px 0 72px;
  overflow: hidden;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11,18,32,.94) 0%, rgba(30,27,75,.88) 45%, rgba(79,70,229,.78) 100%);
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  font-size: 14px;
}
.breadcrumb a {
  color: rgba(255,255,255,.72);
  font-weight: 400;
  transition: color .25s;
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb .sep {
  color: rgba(255,255,255,.4);
  font-size: 11px;
}
.breadcrumb .current {
  color: #fff;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

.hero-meta-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 18px;
}

.cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(245,158,11,.18);
  border: 1px solid rgba(245,158,11,.4);
  color: #FCD34D;
  font-size: 13px;
  font-weight: 600;
}

.hero-meta-item {
  color: rgba(255,255,255,.75);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.hero-meta-item i {
  color: rgba(255,255,255,.55);
}

.hero-title {
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  letter-spacing: -0.5px;
  max-width: 820px;
  margin-bottom: 18px;
  text-shadow: 0 4px 30px rgba(0,0,0,.3);
}

.hero-desc {
  color: rgba(255,255,255,.8);
  font-size: 17px;
  line-height: 1.8;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-flag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.7);
  font-size: 14px;
}
.hero-flag i {
  color: var(--accent);
}

/* ========== Article Main ========== */
.article-main {
  padding: var(--section-space) 0 70px;
  background: var(--body-bg);
}

.article-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 44px 48px;
  margin-bottom: 30px;
  transition: box-shadow .3s ease;
}
.article-box:hover {
  box-shadow: var(--shadow-md);
}

.article-entry {
  color: var(--text-main);
  font-size: 16px;
  line-height: 2;
}

.article-entry > p {
  margin-bottom: 22px;
}

.article-entry > h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-strong);
  margin: 36px 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid #F1F5F9;
}

.article-entry > h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-strong);
  margin: 30px 0 14px;
}

.article-entry img {
  border-radius: var(--radius-md);
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}

.article-entry blockquote {
  margin: 24px 0;
  padding: 18px 24px;
  background: rgba(79,70,229,.05);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-main);
  font-style: normal;
}

.article-entry ul, .article-entry ol {
  margin: 18px 0 22px;
  padding-left: 24px;
}
.article-entry ul li, .article-entry ol li {
  margin-bottom: 10px;
}
.article-entry ul {
  list-style: disc;
}
.article-entry ol {
  list-style: decimal;
}

.article-entry a {
  color: var(--primary);
  font-weight: 500;
  border-bottom: 1px solid rgba(79,70,229,.2);
}
.article-entry a:hover {
  border-bottom-color: var(--primary);
}

.not-found-box {
  text-align: center;
  padding: 60px 24px;
}
.not-found-icon {
  width: 84px;
  height: 84px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(79,70,229,.1), rgba(124,58,237,.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: var(--primary);
}
.not-found-box h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-strong);
}
.not-found-box p {
  color: var(--text-weak);
  margin-bottom: 28px;
}

.article-tags-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--border);
  margin-top: 36px;
}

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  background: #F1F5F9;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-main);
  transition: all .25s ease;
}
.tag:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.back-cat-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  padding: 8px 6px;
}
.back-cat-link:hover {
  color: var(--primary-dark);
}

.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-weak);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #F1F5F9;
  color: var(--text-main);
  font-size: 15px;
  transition: all .25s ease;
}
.share-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-primary);
}

/* ========== Sidebar ========== */
.sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s ease;
}
.sidebar-card:hover {
  box-shadow: var(--shadow-md);
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-strong);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.sidebar-title i {
  color: var(--primary);
  font-size: 16px;
}

.category-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.category-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: #F8FAFC;
  border: 1px solid transparent;
  transition: all .28s ease;
}
.category-item:hover {
  background: #FFF;
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(79,70,229,.12);
  transform: translateX(4px);
}
.category-item .category-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  flex-shrink: 0;
}
.category-item .category-icon.icon-orange {
  background: linear-gradient(135deg, #F59E0B, #EF4444);
}
.category-item strong {
  display: block;
  font-size: 15px;
  color: var(--text-strong);
  margin-bottom: 2px;
}
.category-item small {
  font-size: 12.5px;
  color: var(--text-weak);
}
.category-item .arrow {
  margin-left: auto;
  color: var(--text-weak);
  font-size: 14px;
  transition: all .25s ease;
}
.category-item:hover .arrow {
  color: var(--primary);
  transform: translateX(4px);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: #F1F5F9;
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-main);
  border: 1px solid var(--border);
  transition: all .25s ease;
}
.tag-pill:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(79,70,229,.25);
}

.sidebar-cta {
  text-align: center;
  background: linear-gradient(145deg, var(--dark-bg), var(--dark-bg-2));
  border-color: transparent;
  color: #fff;
  padding: 32px 26px;
}
.sidebar-cta:hover {
  box-shadow: var(--shadow-lg);
}
.sidebar-cta-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 10px 28px rgba(79,70,229,.4);
}
.sidebar-cta h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.sidebar-cta p {
  color: rgba(255,255,255,.65);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 22px;
}

/* ========== Related Section ========== */
.related-section {
  padding: var(--section-space) 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 52px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(79,70,229,.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  color: var(--text-strong);
  margin-bottom: 14px;
  letter-spacing: -1px;
}

.section-desc {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.8;
}

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s cubic-bezier(.4,0,.2,1);
  height: 100%;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.related-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(79,70,229,.3);
}

.related-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--dark-bg);
}
.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.related-card:hover .related-img img {
  transform: scale(1.06);
}

.related-body {
  padding: 26px 26px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 12px;
}
.related-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.5;
}
.related-body p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.8;
  flex: 1;
}

.related-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid #F1F5F9;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(245,158,11,.1);
  border: 1px solid rgba(245,158,11,.25);
  color: #B45309;
  font-size: 12px;
  font-weight: 600;
}

.related-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .25s ease;
}
.related-card:hover .related-more {
  gap: 10px;
}

/* ========== FAQ Section ========== */
.faq-section {
  padding: var(--section-space) 0;
  background: var(--body-bg);
}

.faq-list {
  row-gap: 24px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all .3s ease;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.faq-item:hover {
  box-shadow: var(--shadow-md);
}
.faq-item.active {
  border-color: rgba(79,70,229,.35);
  box-shadow: 0 8px 30px rgba(79,70,229,.12);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-strong);
  transition: color .25s ease;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #F1F5F9;
  font-size: 13px;
  transition: all .35s ease;
}
.faq-item.active .faq-question {
  color: var(--primary);
}
.faq-item.active .faq-question i {
  background: var(--primary);
  color: #fff;
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 22px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.9;
  border-top: 1px solid #F1F5F9;
  margin-top: 14px;
  padding-top: 16px;
}
.faq-answer.show {
  display: block;
}

/* ========== CTA Section ========== */
.cta-section {
  padding: 70px 0;
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,.25), transparent 70%);
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,158,11,.15), transparent 70%);
}

.cta-box {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  background: linear-gradient(135deg, rgba(79,70,229,.2), rgba(124,58,237,.15));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-xl);
  padding: 52px 56px;
}

.cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 16px;
  border-radius: 999px;
  background: rgba(245,158,11,.18);
  color: #FCD34D;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}

.cta-content h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}
.cta-content p {
  color: rgba(255,255,255,.7);
  font-size: 15px;
  max-width: 440px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--dark-bg);
  color: rgba(255,255,255,.72);
  padding: 70px 0 0;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .brand-logo {
  color: #fff;
  font-size: 22px;
  margin-bottom: 16px;
}
.footer-brand .brand-logo i {
  background: linear-gradient(135deg, #818CF8, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,255,255,.55);
  max-width: 340px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  color: rgba(255,255,255,.55);
  font-size: 14px;
  transition: all .25s ease;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.footer-links a::before {
  content: '›';
  font-size: 15px;
  color: rgba(255,255,255,.3);
  transition: all .25s ease;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 5px;
}
.footer-links a:hover::before {
  color: var(--primary);
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: rgba(255,255,255,.55);
}
.footer-contact i {
  color: var(--primary-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 26px 0 28px;
  font-size: 13px;
  color: rgba(255,255,255,.38);
}

/* ========== Responsive ========== */
@media screen and (max-width: 1024px) {
  :root {
    --section-space: 70px;
  }
  
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(18px);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(15,23,42,.1);
    transform: translateY(-120%);
    transition: transform .35s cubic-bezier(.4,0,.2,1);
    z-index: 998;
  }
  .site-nav.open {
    transform: translateY(0);
  }
  .nav-link {
    width: 100%;
    text-align: center;
    padding: 14px 18px;
  }
  .nav-link.active::after {
    bottom: 6px;
  }

  .nav-toggle {
    display: flex;
  }

  .search-box {
    width: 160px;
  }
  .search-box:focus-within {
    width: 200px;
  }

  .hero-title {
    font-size: 34px;
  }

  .article-box {
    padding: 34px 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media screen and (max-width: 768px) {
  :root {
    --section-space: 60px;
  }
  .grid-container,
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

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

  .search-box {
    width: 44px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
    height: 44px;
    border-width: 1.5px;
  }
  .search-box input {
    display: none;
  }
  .search-box i {
    font-size: 16px;
  }
  .search-box:focus-within {
    width: 44px;
  }

  .page-hero {
    padding: 56px 0 48px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-desc {
    font-size: 15px;
  }

  .article-box {
    padding: 26px 22px;
  }
  .article-entry {
    font-size: 15px;
    line-height: 1.9;
  }
  .article-entry > h2 {
    font-size: 22px;
  }

  .article-tags-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-box {
    flex-direction: column;
    padding: 36px 28px;
    text-align: center;
  }
  .cta-actions {
    justify-content: center;
  }

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

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

@media screen and (max-width: 520px) {
  .brand-logo {
    font-size: 17px;
  }
  .brand-logo i {
    font-size: 18px;
  }

  .header-tools {
    gap: 8px;
  }
  .header-tools .btn-sm {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }

  .page-hero-inner {
    padding: 0 10px;
  }

  .breadcrumb .current {
    max-width: 160px;
  }

  .hero-meta-top {
    gap: 10px;
  }

  .hero-title {
    font-size: 24px;
  }

  .related-img {
    aspect-ratio: 16 / 10;
  }

  .article-box {
    padding: 20px 16px;
    border-radius: var(--radius-md);
  }

  .sidebar {
    position: static;
  }

  .faq-question {
    font-size: 15px;
    padding: 18px;
  }
  .faq-answer {
    padding: 0 18px 18px;
  }

  .cta-box {
    padding: 30px 20px;
    border-radius: var(--radius-lg);
  }
  .cta-actions .btn {
    width: 100%;
  }

  .footer-grid {
    gap: 28px;
  }
}

@media screen and (min-width: 1025px) {
  .site-nav {
    display: flex !important;
  }
}

/* roulang page: category2 */
:root{
  --primary:#4f46e5;
  --primary-dark:#4338ca;
  --primary-light:#eef2ff;
  --accent:#f59e0b;
  --accent-dark:#d97706;
  --bg:#f8fafc;
  --card-bg:#ffffff;
  --text:#1e293b;
  --text-weak:#64748b;
  --border:#e2e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow-md:0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:0 12px 32px rgba(0,0,0,.12);
  --space:96px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
input,button,textarea{font-family:inherit;font-size:inherit}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;border-radius:999px;
  font-weight:600;font-size:15px;line-height:1.4;
  border:none;cursor:pointer;transition:all .25s ease;
  text-decoration:none;
}
.btn:focus{outline:3px solid rgba(79,70,229,.25);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(79,70,229,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,158,11,.3)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn-outline:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.1)}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-lg{padding:14px 34px;font-size:16px}
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-hot{background:#fef2f2;color:#ef4444}
.badge-cat{background:var(--primary-light);color:var(--primary)}
.badge-accent{background:#fffbeb;color:var(--accent-dark)}
.badge-green{background:#f0fdf4;color:#16a34a}
/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:20px;
}
.brand-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--text);
  letter-spacing:-.5px;white-space:nowrap;
}
.brand-logo i{color:var(--primary);font-size:22px}
.brand-logo:hover{color:var(--primary)}
.site-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.site-nav .nav-link{
  padding:8px 16px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--text-weak);
  transition:all .25s ease;
}
.site-nav .nav-link:hover{color:var(--primary);background:var(--primary-light)}
.site-nav .nav-link.active{color:var(--primary);background:var(--primary-light);font-weight:600}
.header-tools{display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#f1f5f9;border:1px solid transparent;
  border-radius:999px;padding:8px 16px;
  transition:all .25s ease;width:220px;
}
.search-box:hover,.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(79,70,229,.1)}
.search-box input{
  border:none;background:transparent;outline:none;
  font-size:14px;color:var(--text);width:100%;
}
.search-box i{color:var(--text-weak);font-size:14px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s ease}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* Page Banner */
.page-banner{
  position:relative;
  background-size:cover;background-position:center;
  padding:110px 0 100px;
  color:#fff;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(30,27,75,.88) 0%,rgba(79,70,229,.62) 50%,rgba(0,0,0,.35) 100%);
}
.page-banner .grid-container{position:relative;z-index:2}
.banner-content{max-width:680px}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.25);
  backdrop-filter:blur(6px);
  padding:6px 16px;border-radius:999px;
  font-size:14px;font-weight:600;margin-bottom:24px;
}
.banner-badge i{color:var(--accent)}
.banner-content h1{
  font-size:44px;line-height:1.2;font-weight:800;
  letter-spacing:-1px;margin-bottom:16px;
  text-shadow:0 2px 20px rgba(0,0,0,.15);
}
.banner-content p{
  font-size:17px;line-height:1.8;
  color:rgba(255,255,255,.9);
  margin-bottom:32px;max-width:520px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}
.banner-actions .btn-outline{border-color:rgba(255,255,255,.6);color:#fff}
.banner-actions .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.breadcrumb-nav{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.75);
  margin-bottom:24px;
}
.breadcrumb-nav a{color:rgba(255,255,255,.85);text-decoration:none}
.breadcrumb-nav a:hover{color:#fff}
.breadcrumb-nav i{font-size:11px;color:rgba(255,255,255,.5)}
/* Sections */
.section{padding:var(--space) 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.section-kicker{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;color:var(--primary);
  background:var(--primary-light);
  padding:6px 18px;border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{font-size:34px;font-weight:800;line-height:1.25;letter-spacing:-.5px;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-weak);line-height:1.7}
/* Tag Cloud */
.tag-section{
  padding-top:56px;
  background:#fff;
}
.tag-cloud{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px;
  max-width:780px;margin:0 auto;
}
.tag-item{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 22px;border-radius:999px;
  background:#f1f5f9;color:var(--text-weak);
  font-size:14px;font-weight:500;
  border:1px solid transparent;
  transition:all .25s ease;
}
.tag-item i{font-size:12px}
.tag-item:hover{color:var(--primary);background:var(--primary-light);transform:translateY(-2px)}
.tag-item.active{
  background:var(--primary);color:#fff;
  box-shadow:0 6px 16px rgba(79,70,229,.25);
}
/* Play Cards */
.play-section{background:var(--bg)}
.play-grid{display:flex;flex-wrap:wrap;margin:-16px}
.play-grid>.cell{padding:16px}
.play-card{
  background:var(--card-bg);border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:all .3s ease;
  display:flex;flex-direction:column;
  height:100%;
}
.play-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(79,70,229,.25);
}
.play-card-media{position:relative;overflow:hidden;aspect-ratio:16/10}
.play-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.play-card:hover .play-card-media img{transform:scale(1.05)}
.play-hot-badge{
  position:absolute;top:14px;right:14px;
  background:rgba(255,255,255,.95);
  color:#ef4444;font-size:13px;font-weight:700;
  padding:6px 14px;border-radius:999px;
  box-shadow:0 4px 12px rgba(0,0,0,.12);
  display:inline-flex;align-items:center;gap:6px;
  backdrop-filter:blur(6px);
}
.play-card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.play-tags{display:flex;gap:8px;margin-bottom:12px}
.play-card-body h3{font-size:20px;font-weight:700;margin-bottom:10px;line-height:1.3}
.play-card-body>p{font-size:14px;color:var(--text-weak);line-height:1.65;flex:1;margin-bottom:20px}
.play-card-meta{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid #f1f5f9;padding-top:16px;
}
.avatar-group{display:flex;align-items:center}
.avatar-group .avatar{
  width:28px;height:28px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;
  border:2px solid #fff;margin-left:-8px;
}
.avatar-group .avatar:first-child{margin-left:0}
.avatar-group .avatar:nth-child(2){background:#fef2f2;color:#ef4444}
.avatar-group .avatar:nth-child(3){background:#f0fdf4;color:#16a34a}
.avatar-group .avatar:nth-child(4){background:#fffbeb;color:var(--accent-dark)}
.play-card-meta .meta-users{font-size:13px;color:var(--text-weak);font-weight:500;display:inline-flex;align-items:center;gap:6px}
.play-card-meta .meta-users i{color:var(--accent)}
/* Rank Section */
.rank-section{background:#fff;border-top:1px solid var(--border)}
.rank-wrap{max-width:820px;margin:0 auto}
.rank-list{display:flex;flex-direction:column;gap:14px}
.rank-item{
  display:flex;align-items:center;gap:20px;
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px 24px;
  transition:all .25s ease;
}
.rank-item:hover{border-color:rgba(79,70,229,.3);box-shadow:var(--shadow-md);transform:translateX(4px)}
.rank-num{
  font-size:22px;font-weight:800;color:var(--border);
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:#f8fafc;flex-shrink:0;
}
.rank-item:nth-child(1) .rank-num{background:var(--accent);color:#fff}
.rank-item:nth-child(2) .rank-num{background:#64748b;color:#fff}
.rank-item:nth-child(3) .rank-num{background:#c2410c;color:#fff}
.rank-info{flex:1}
.rank-info h3{font-size:16px;font-weight:700;margin-bottom:4px}
.rank-info .rank-desc{font-size:13px;color:var(--text-weak)}
.rank-score{font-size:14px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:6px;flex-shrink:0}
.rank-score i{color:var(--accent)}
.rank-visitors{
  font-size:13px;color:var(--text-weak);flex-shrink:0;
  background:#f1f5f9;padding:4px 14px;border-radius:999px;
}
/* Guide Steps */
.guide-section{background:var(--bg)}
.guide-steps{display:flex;flex-wrap:wrap;margin:-14px;counter-reset:step}
.guide-steps .step-card{
  background:var(--card-bg);border-radius:var(--radius);
  padding:32px 28px;border:1px solid var(--border);
  position:relative;transition:all .3s ease;
  height:100%;
}
.guide-steps .step-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.step-card .step-num{
  font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:1px;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:14px;
}
.step-card .step-num::before{
  content:"";width:32px;height:2px;background:var(--primary);border-radius:2px;
}
.step-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-weak);line-height:1.65}
/* Community */
.community-section{background:#fff;border-top:1px solid var(--border)}
.community-grid{display:flex;flex-wrap:wrap;margin:-14px}
.community-grid>.cell{padding:14px}
.topic-card{
  background:var(--bg);border-radius:var(--radius);
  padding:26px;border:1px solid var(--border);
  transition:all .3s ease;height:100%;
}
.topic-card:hover{box-shadow:var(--shadow-md);border-color:rgba(79,70,229,.25)}
.topic-card .topic-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--primary);
  background:var(--primary-light);
  padding:4px 12px;border-radius:999px;margin-bottom:16px;
}
.topic-card h3{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.4}
.topic-card p{font-size:14px;color:var(--text-weak);line-height:1.6;margin-bottom:18px}
.topic-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-weak);
}
.topic-meta i{color:var(--accent);margin-right:4px}
.quote-card{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;border-radius:var(--radius);
  padding:36px;height:100%;
  position:relative;overflow:hidden;
}
.quote-card::after{
  content:"\201C";position:absolute;right:16px;top:-20px;
  font-size:120px;opacity:.15;font-family:Georgia,serif;
}
.quote-card .quote-text{font-size:18px;line-height:1.7;font-weight:500;margin-bottom:20px}
.quote-card .quote-author{display:flex;align-items:center;gap:12px}
.quote-card .quote-author .avatar{
  width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.2);display:flex;
  align-items:center;justify-content:center;
  font-size:15px;font-weight:700;border:2px solid rgba(255,255,255,.4);
}
.quote-card .quote-author .name{font-size:14px;font-weight:600}
.quote-card .quote-author .meta{font-size:12px;opacity:.8}
/* FAQ */
.faq-section{background:var(--bg)}
.faq-wrap{max-width:780px;margin:0 auto}
.faq-item{
  background:var(--card-bg);border:1px solid var(--border);
  border-radius:var(--radius-sm);
  margin-bottom:14px;overflow:hidden;
  transition:all .25s ease;
}
.faq-item:hover{border-color:rgba(79,70,229,.3);box-shadow:var(--shadow-sm)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;cursor:pointer;
  font-size:16px;font-weight:600;
  transition:background .25s ease;
}
.faq-question:hover{background:#fafbff}
.faq-question .faq-icon{
  width:28px;height:28px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:transform .3s ease;
  font-size:12px;
}
.faq-item.active .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{
  display:none;padding:0 24px 22px;
  font-size:15px;color:var(--text-weak);line-height:1.75;
}
.faq-item.active .faq-answer{display:block}
/* CTA */
.cta-section{
  background:linear-gradient(135deg,#1e1b4b 0%,#312e81 60%,#4338ca 100%);
  color:#fff;padding:80px 0;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;width:400px;height:400px;
  background:rgba(255,255,255,.03);border-radius:50%;
  top:-100px;right:-80px;
}
.cta-section::after{
  content:"";position:absolute;width:240px;height:240px;
  background:rgba(245,158,11,.08);border-radius:50%;
  bottom:-60px;left:10%;
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:660px;margin:0 auto}
.cta-inner h2{font-size:36px;font-weight:800;margin-bottom:16px;letter-spacing:-.5px}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.85);margin-bottom:36px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
/* Footer */
.site-footer{background:#0f172a;color:#94a3b8}
.site-footer .grid-container{padding-top:64px;padding-bottom:0}
.footer-grid{
  display:flex;flex-wrap:wrap;
  gap:32px;padding-bottom:48px;
}
.footer-grid>div{flex:1;min-width:200px}
.footer-brand .brand-logo{color:#f1f5f9;margin-bottom:14px}
.footer-brand .brand-logo i{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.7;color:#94a3b8;max-width:280px}
.footer-title{
  font-size:15px;font-weight:700;color:#f1f5f9;
  margin-bottom:18px;letter-spacing:.5px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{
  color:#94a3b8;font-size:14px;transition:all .25s ease;
  display:inline-flex;align-items:center;gap:8px;
}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-links a i{font-size:11px;color:var(--accent)}
.footer-contact p{
  font-size:14px;color:#94a3b8;margin-bottom:10px;
  display:flex;align-items:center;gap:10px;
}
.footer-contact i{color:var(--accent);width:16px;text-align:center}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0;display:flex;
  flex-wrap:wrap;justify-content:space-between;
  gap:8px;font-size:13px;color:#64748b;
}
/* Responsive */
@media screen and (max-width: 1024px){
  .search-box{width:180px}
  .banner-content h1{font-size:36px}
  .section-head h2{font-size:28px}
  .section{padding:72px 0}
  .rank-visitors{display:none}
}
@media screen and (max-width: 768px){
  .header-inner{height:auto;flex-wrap:wrap;padding:14px 0;position:relative}
  .site-nav{
    display:none;width:100%;order:4;
    flex-direction:column;align-items:stretch;
    padding:16px 0 0;gap:4px;
  }
  .site-nav.open{display:flex}
  .site-nav .nav-link{text-align:center;padding:12px;font-size:15px}
  .header-tools{display:flex;align-items:center;gap:10px}
  .search-box{order:3;margin-left:auto}
  .header-tools .btn{display:none}
  .nav-toggle{display:flex}
  .banner-content h1{font-size:30px}
  .banner-content p{font-size:15px}
  .section{padding:60px 0}
  .section-head{margin-bottom:36px}
  .section-head h2{font-size:24px;line-height:1.3}
  .rank-item{flex-wrap:wrap;gap:12px}
  .rank-score{width:100%;padding-left:68px}
  .footer-grid>div{flex:0 0 100%}
}
@media screen and (max-width: 520px){
  .grid-container{padding-left:18px;padding-right:18px}
  .search-box{display:none}
  .header-tools .btn{
    display:inline-flex;
    font-size:13px;padding:8px 14px;
  }
  .banner-content h1{font-size:26px}
  .banner-content p{font-size:14px}
  .banner-actions .btn{width:100%;justify-content:center}
  .section{padding:50px 0}
  .section-head h2{font-size:21px}
  .section-head p{font-size:14px}
  .tag-item{padding:8px 16px;font-size:13px}
  .play-card-body{padding:20px}
  .play-card-body h3{font-size:18px}
  .community-grid>.cell{flex:0 0 100%}
  .cta-inner h2{font-size:28px}
  .cta-actions .btn{width:100%;justify-content:center}
  .footer-bottom{flex-direction:column;text-align:center}
}