/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --primary-lighter: #eff6ff;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --dark: #0f172a;
  --text: #1e293b;
  --text-light: #55657a;
  --text-muted: #8a9aa8;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --bg-dark: #0b1322;
  --border: #e4e9f0;
  --radius: 18px;
  --radius-sm: 10px;
  --radius-lg: 26px;
  --shadow-sm: 0 2px 10px rgba(15,23,42,0.05);
  --shadow: 0 8px 30px rgba(15,23,42,0.08);
  --shadow-lg: 0 20px 50px rgba(15,23,42,0.14);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-sans: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

/* ========== 基础 Reset ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;transition:var(--transition);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
ul,ol{list-style:none;}
input,textarea{font-family:inherit;}
:focus-visible{outline:3px solid rgba(37,99,235,0.4);outline-offset:2px;border-radius:4px;}

/* ========== 容器 ========== */
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:90px 0;}

/* ========== 头部导航 ========== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,0.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 12px rgba(15,23,42,0.04);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px;}
.brand{font-size:1.5rem;font-weight:800;color:var(--dark);letter-spacing:-0.02em;display:flex;align-items:center;gap:8px;white-space:nowrap;}
.brand-icon{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;flex-shrink:0;}
.brand em{font-style:normal;color:var(--primary);}
.main-nav{display:flex;gap:4px;align-items:center;}
.nav-link{
  padding:9px 18px;border-radius:999px;font-size:0.95rem;font-weight:500;
  color:var(--text-light);white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-lighter);}
.nav-link.active{color:var(--primary);background:var(--primary-light);font-weight:600;}
.header-cta{margin-left:8px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 26px;border-radius:999px;font-size:0.95rem;font-weight:600;transition:var(--transition);white-space:nowrap;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(37,99,235,0.28);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 28px rgba(37,99,235,0.35);}
.btn-outline-light{border:2px solid rgba(255,255,255,0.65);color:#fff;background:transparent;}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,0.14);transform:translateY(-2px);}
.btn-outline{border:2px solid var(--border);color:var(--text);background:var(--bg);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 16px rgba(245,158,11,0.3);}
.btn-accent:hover{background:#d97706;transform:translateY(-2px);box-shadow:0 10px 28px rgba(245,158,11,0.38);}
.btn-lg{padding:15px 36px;font-size:1.05rem;}

/* 移动端导航按钮 */
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:10px;border-radius:10px;}
.nav-toggle span{width:22px;height:2px;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);}

/* ========== Hero 首屏 ========== */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(9,15,30,0.92) 0%,rgba(21,42,94,0.82) 55%,rgba(37,99,235,0.62) 100%),
  url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;padding:120px 0 130px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.22);
  padding:8px 18px;border-radius:999px;font-size:0.85rem;font-weight:500;
  backdrop-filter:blur(6px);margin-bottom:24px;
}
.hero-badge i{color:var(--accent);}
.hero-title{font-size:3.2rem;line-height:1.18;font-weight:800;letter-spacing:-0.025em;margin-bottom:20px;max-width:680px;}
.hero-title span{color:#60a5fa;}
.hero-sub{font-size:1.15rem;line-height:1.8;color:rgba(255,255,255,0.86);max-width:580px;margin-bottom:36px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-meta{display:flex;gap:30px;margin-top:52px;flex-wrap:wrap;}
.hero-meta-item{display:flex;align-items:center;gap:10px;font-size:0.9rem;color:rgba(255,255,255,0.75);}
.hero-meta-item i{color:var(--accent);font-size:1.05rem;}

/* ========== 板块标题组件 ========== */
.section-head{text-align:center;max-width:640px;margin:0 auto 56px;}
.section-tag{
  display:inline-block;background:var(--primary-lighter);color:var(--primary);
  padding:6px 16px;border-radius:999px;font-size:0.82rem;font-weight:600;letter-spacing:0.02em;margin-bottom:14px;
}
.section-title{font-size:2.1rem;font-weight:800;letter-spacing:-0.02em;line-height:1.25;color:var(--dark);margin-bottom:12px;}
.section-desc{color:var(--text-light);font-size:1.02rem;line-height:1.75;}

/* ========== 核心亮点 ========== */
.features-section{background:var(--bg);}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:36px 30px;transition:var(--transition);position:relative;overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;transition:var(--transition);
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(37,99,235,0.2);}
.feature-card:hover::before{opacity:1;}
.feature-icon{
  width:56px;height:56px;border-radius:16px;background:var(--primary-lighter);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:20px;
  transition:var(--transition);
}
.feature-card:hover .feature-icon{background:var(--primary);color:#fff;transform:rotate(-6deg) scale(1.05);}
.feature-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;color:var(--dark);}
.feature-card p{font-size:0.92rem;color:var(--text-light);line-height:1.7;}

/* ========== 分类入口 ========== */
.category-section{background:var(--bg-alt);}
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.category-card{
  border-radius:var(--radius-lg);overflow:hidden;background:var(--bg);
  box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid var(--border);
  display:flex;flex-direction:column;
}
.category-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent;}
.category-media{position:relative;height:220px;overflow:hidden;}
.category-media img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s ease;}
.category-card:hover .category-media img{transform:scale(1.06);}
.category-media::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(11,18,32,0.35),transparent 60%);}
.category-badge{
  position:absolute;top:18px;left:18px;z-index:2;
  background:rgba(255,255,255,0.92);color:var(--primary);font-size:0.82rem;font-weight:700;
  padding:6px 14px;border-radius:999px;box-shadow:var(--shadow-sm);
}
.category-body{padding:28px 30px 32px;flex:1;display:flex;flex-direction:column;}
.category-body h3{font-size:1.35rem;font-weight:700;margin-bottom:10px;color:var(--dark);}
.category-body p{font-size:0.93rem;color:var(--text-light);line-height:1.7;margin-bottom:22px;flex:1;}
.category-link{font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:8px;font-size:0.95rem;}
.category-link:hover{gap:12px;color:var(--primary-dark);}
.category-link i{font-size:0.8rem;}

/* ========== 数据统计 ========== */
.stats-section{
  background:linear-gradient(135deg,var(--bg-dark) 0%,#111c33 100%);
  color:#fff;padding:80px 0;position:relative;overflow:hidden;
}
.stats-section::before{
  content:'';position:absolute;top:-60%;right:-20%;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,0.3),transparent 70%);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
.stat-item{padding:20px;position:relative;}
.stat-num{display:block;font-size:2.6rem;font-weight:800;letter-spacing:-0.02em;color:#fff;line-height:1.2;}
.stat-num em{font-style:normal;color:#60a5fa;}
.stat-label{display:block;font-size:0.9rem;color:rgba(255,255,255,0.65);margin-top:8px;letter-spacing:0.05em;}

/* ========== 评测指标 ========== */
.rating-section{background:var(--bg);}
.rating-wrap{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:50px 55px;
}
.rating-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:36px;flex-wrap:wrap;gap:16px;}
.rating-score-big{display:flex;align-items:baseline;gap:8px;}
.rating-score-big .score{font-size:3rem;font-weight:800;color:var(--dark);line-height:1;}
.rating-score-big .max{font-size:1.2rem;color:var(--text-muted);}
.rating-stars{color:var(--accent);font-size:1.1rem;margin-top:6px;letter-spacing:4px;}
.rating-list{display:flex;flex-direction:column;gap:18px;}
.rating-row{display:flex;align-items:center;gap:16px;}
.rating-label{width:90px;font-size:0.92rem;font-weight:600;color:var(--text);flex-shrink:0;}
.rating-bar{flex:1;height:8px;background:#e8edf4;border-radius:999px;overflow:hidden;}
.rating-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),#60a5fa);transition:width 1s ease;}
.rating-score{font-weight:700;font-size:0.95rem;color:var(--dark);width:36px;text-align:right;}

/* ========== 最新资讯 ========== */
.news-section{background:var(--bg-alt);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.news-card{
  background:var(--bg);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);
  transition:var(--transition);
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(37,99,235,0.18);}
.news-card-media{position:relative;height:180px;overflow:hidden;}
.news-card-media img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease;}
.news-card:hover .news-card-media img{transform:scale(1.05);}
.news-badge{
  position:absolute;top:14px;left:14px;background:rgba(37,99,235,0.92);color:#fff;
  font-size:0.75rem;font-weight:600;padding:5px 12px;border-radius:999px;backdrop-filter:blur(4px);
}
.news-card-body{padding:22px 24px 24px;}
.news-card-body h3{font-size:1.02rem;font-weight:700;line-height:1.5;margin-bottom:10px;color:var(--dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card-body p{font-size:0.88rem;color:var(--text-light);line-height:1.65;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);padding-top:14px;}
.news-date{font-size:0.82rem;color:var(--text-muted);display:inline-flex;align-items:center;gap:6px;}
.news-more{font-size:0.84rem;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .news-more{gap:10px;}
.empty-state{
  grid-column:1/-1;background:var(--bg);border:1px dashed var(--border);border-radius:var(--radius);
  padding:60px 30px;text-align:center;color:var(--text-muted);
}
.empty-state i{font-size:2rem;margin-bottom:14px;color:var(--text-muted);}
.empty-state p{font-size:1rem;}

/* ========== 使用流程 ========== */
.process-section{background:var(--bg);}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;counter-reset:step;}
.process-step{
  text-align:center;padding:40px 28px;position:relative;
}
.process-step::before{
  counter-increment:step;content:'0' counter(step);
  display:block;font-size:3.2rem;font-weight:800;color:var(--primary-light);
  line-height:1;margin-bottom:18px;letter-spacing:-0.03em;transition:var(--transition);
}
.process-step:hover::before{color:var(--primary);transform:scale(1.06);}
.process-step h3{font-size:1.15rem;font-weight:700;margin-bottom:12px;color:var(--dark);}
.process-step p{font-size:0.92rem;color:var(--text-light);line-height:1.75;max-width:280px;margin:0 auto;}
.process-link{display:none;}
.step-divider{width:1px;height:60px;background:var(--border);margin:0 auto;}

/* ========== FAQ ========== */
.faq-section{background:var(--bg-alt);}
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:var(--transition);
}
.faq-item:hover{border-color:rgba(37,99,235,0.25);box-shadow:var(--shadow-sm);}
.faq-item.active{border-color:rgba(37,99,235,0.4);box-shadow:var(--shadow);}
.faq-question{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  padding:22px 26px;text-align:left;font-size:1.02rem;font-weight:600;color:var(--dark);
  background:transparent;transition:var(--transition);
}
.faq-question:hover{color:var(--primary);}
.faq-question i{color:var(--text-muted);transition:var(--transition);font-size:0.85rem;}
.faq-item.active .faq-question i{transform:rotate(180deg);color:var(--primary);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease;}
.faq-answer p{padding:0 26px 24px;font-size:0.93rem;color:var(--text-light);line-height:1.8;}

/* ========== CTA ========== */
.cta-section{
  position:relative;overflow:hidden;padding:100px 0;text-align:center;color:#fff;
  background:linear-gradient(135deg,rgba(15,23,42,0.92),rgba(30,64,175,0.85)),
  url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.cta-section .cta-inner{max-width:640px;margin:0 auto;position:relative;z-index:2;}
.cta-section h2{font-size:2.4rem;font-weight:800;letter-spacing:-0.02em;margin-bottom:18px;}
.cta-section p{font-size:1.08rem;color:rgba(255,255,255,0.85);line-height:1.8;margin-bottom:34px;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ========== 页脚 ========== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,0.75);padding:70px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,0.08);}
.footer-brand .brand{color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:0.9rem;line-height:1.75;color:rgba(255,255,255,0.6);max-width:300px;}
.footer-col h4{color:#fff;font-size:1rem;font-weight:700;margin-bottom:20px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:0.9rem;color:rgba(255,255,255,0.6);transition:var(--transition);}
.footer-col ul a:hover{color:#60a5fa;padding-left:4px;}
.footer-bottom{
  padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:0.82rem;color:rgba(255,255,255,0.4);
}

/* ========== 响应式断点 ========== */
@media (max-width:1024px){
  .hero-title{font-size:2.6rem;}
  .features-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .process-grid{grid-template-columns:repeat(3,1fr);gap:20px;}
  .rating-wrap{padding:40px 30px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .hero{padding:80px 0 90px;}
  .hero-title{font-size:2rem;line-height:1.25;}
  .hero-sub{font-size:1rem;}
  .header-inner{height:64px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:absolute;top:64px;left:0;right:0;background:var(--bg);
    flex-direction:column;align-items:flex-start;padding:16px 24px 24px;gap:4px;
    border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);
    transform:translateY(-140%);opacity:0;visibility:hidden;transition:var(--transition);
  }
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-link{width:100%;padding:12px 16px;border-radius:12px;}
  .header-cta{display:none;}
  .features-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .feature-card{padding:26px 22px;}
  .category-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .process-grid{grid-template-columns:1fr;}
  .process-step{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:36px;}
  .rating-wrap{padding:32px 20px;}
  .rating-label{width:70px;font-size:0.85rem;}
  .btn-lg{padding:13px 28px;font-size:1rem;}
  .hero-actions .btn{width:auto;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero{padding:60px 0 70px;}
  .hero-title{font-size:1.65rem;}
  .hero-meta{gap:16px;flex-direction:column;}
  .features-grid{grid-template-columns:1fr;}
  .stats-grid{gap:12px;}
  .stat-num{font-size:2rem;}
  .cta-section h2{font-size:1.7rem;}
  .cta-actions .btn{width:100%;}
  .section-title{font-size:1.7rem;}
  .rating-row{flex-wrap:wrap;}
  .rating-label{width:100%;}
  .brand{font-size:1.3rem;}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center;}
}

/* roulang page: article */
:root {
  --primary: #1e3a8a;
  --primary-dark: #172c6b;
  --primary-light: #3b5cad;
  --primary-soft: #eff6ff;
  --accent: #d97706;
  --accent-light: #f59e0b;
  --accent-soft: #fef3c7;
  --teal: #0d9488;
  --teal-soft: #ccfbf1;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #0f172a;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, .10);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, .05);
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
  --header-h: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px; line-height: 1.75; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition), opacity var(--transition); }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }
.row { max-width: 1200px; margin: 0 auto; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226,232,240,.8);
  height: var(--header-h);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); gap: 20px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 1.45rem; font-weight: 800; letter-spacing: -.02em;
  color: var(--text); white-space: nowrap;
}
.brand-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: 1rem;
  box-shadow: 0 6px 16px rgba(30,58,138,.25);
}
.brand em {
  font-style: normal; color: var(--primary);
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav .nav-link {
  padding: 9px 18px; border-radius: 999px;
  font-size: .95rem; font-weight: 600; color: var(--text-light);
  transition: all var(--transition); position: relative;
}
.main-nav .nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.main-nav .nav-link.active { color: var(--primary); background: var(--primary-soft); font-weight: 700; }
.header-cta {
  margin-left: 8px; display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; border: none; padding: 11px 24px; border-radius: 999px;
  font-size: .92rem; font-weight: 700; cursor: pointer;
  box-shadow: 0 8px 20px rgba(30,58,138,.25);
  transition: all var(--transition); white-space: nowrap;
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(30,58,138,.3); color: #fff; }
.header-cta:active { transform: translateY(0); }
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; padding: 10px; transition: all var(--transition);
}
.nav-toggle:hover { border-color: var(--primary-light); }
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--text); border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--primary); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--primary); }

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 4.5rem 0 4rem;
  background: linear-gradient(135deg, rgba(12,20,45,.94), rgba(30,58,138,.86)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff; text-align: center; overflow: hidden;
}
.article-hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 240px at 20% 0%, rgba(255,255,255,.08), transparent);
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex; justify-content: center; align-items: center; gap: 10px;
  font-size: .9rem; color: rgba(255,255,255,.7); font-weight: 500;
  margin-bottom: 1.2rem; flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255,255,255,.85); transition: color .3s; }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb-sep { opacity: .5; }
.article-hero-cat {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  padding: 6px 16px; border-radius: 999px;
  font-size: .85rem; font-weight: 600; color: #fff;
  margin-bottom: 1.2rem; backdrop-filter: blur(8px);
  letter-spacing: .02em;
}
.article-hero-cat i { color: var(--accent-light); }
.article-hero-title {
  font-size: clamp(1.8rem, 4.2vw, 2.8rem);
  font-weight: 800; line-height: 1.25; max-width: 860px;
  margin: 0 auto 1rem; letter-spacing: -.03em;
  text-shadow: 0 4px 20px rgba(0,0,0,.2);
}
.article-hero-meta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 18px;
  font-size: .9rem; color: rgba(255,255,255,.7);
}
.article-hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-hero-meta i { color: var(--accent-light); }

/* ===== Article Main ===== */
.article-main { padding: 0 0 4rem; background: var(--bg); position: relative; z-index: 3; }
.article-card-wrap {
  background: var(--surface); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); border: 1px solid rgba(226,232,240,.6);
  padding: 2.5rem; margin-top: -1.4rem; position: relative;
}
.article-cover {
  border-radius: var(--radius-md); overflow: hidden;
  margin-bottom: 2rem; position: relative;
  box-shadow: var(--shadow-md);
}
.article-cover img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.article-cover::after {
  content: "pg网页版"; position: absolute; right: 14px; bottom: 14px;
  background: rgba(15,23,42,.55); color: rgba(255,255,255,.85);
  padding: 5px 14px; border-radius: 999px; font-size: .8rem;
  font-weight: 600; backdrop-filter: blur(6px); letter-spacing: .03em;
}
.article-meta {
  display: flex; flex-wrap: wrap; gap: 16px;
  padding-bottom: 1.4rem; margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--border);
}
.meta-item {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: .88rem; color: var(--text-light); font-weight: 500;
  background: var(--bg); padding: 6px 14px; border-radius: 999px;
}
.meta-item i { color: var(--primary); }
.meta-item .cat-badge {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; padding: 2px 12px; border-radius: 999px;
  font-weight: 700; font-size: .8rem;
}
.article-content {
  font-size: 1.05rem; line-height: 2; color: #334155; letter-spacing: .01em;
}
.article-content p { margin-bottom: 1.5rem; text-align: justify; }
.article-content h2 {
  font-size: 1.6rem; font-weight: 800; color: var(--text);
  margin: 2.2rem 0 1rem; letter-spacing: -.02em;
  padding-left: 16px; border-left: 4px solid var(--accent);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 1.25rem; font-weight: 700; color: var(--text);
  margin: 1.8rem 0 .8rem;
}
.article-content ul, .article-content ol {
  margin: 0 0 1.5rem; padding-left: 1.6rem;
}
.article-content ul li, .article-content ol li {
  margin-bottom: .55rem; position: relative;
}
.article-content ul li::before {
  content: ""; position: absolute; left: -1.3rem; top: .8rem;
  width: 7px; height: 7px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}
.article-content ol { list-style: decimal; }
.article-content ol li::marker { color: var(--primary); font-weight: 700; }
.article-content blockquote {
  background: var(--accent-soft); border-left: 4px solid var(--accent);
  padding: 1.2rem 1.5rem; border-radius: 0 12px 12px 0;
  margin: 1.8rem 0; font-size: 1rem; color: #78350f;
}
.article-content blockquote p { margin-bottom: 0; }
.article-content img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
.article-content a { color: var(--primary); font-weight: 600; border-bottom: 1px solid var(--primary-light); }
.article-content a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.article-content code {
  background: #f1f5f9; color: #0f172a; padding: 3px 10px;
  border-radius: 6px; font-size: .9em; border: 1px solid var(--border);
}
.article-content pre {
  background: #0f172a; color: #e2e8f0; padding: 1.4rem 1.6rem;
  border-radius: var(--radius-md); overflow-x: auto; margin: 1.5rem 0;
  font-size: .92rem; line-height: 1.8;
}
.article-content pre code { background: none; color: inherit; padding: 0; border: none; }
.content-empty {
  background: var(--bg); border: 1px dashed var(--border);
  border-radius: var(--radius-md); padding: 2.5rem; text-align: center;
  color: var(--text-light); font-size: 1rem;
}

/* ===== Article Tags & Share ===== */
.article-tags {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  padding-top: 1.6rem; margin-top: 1.8rem;
  border-top: 1px solid var(--border);
}
.article-tags .tag-label { font-weight: 700; color: var(--text); font-size: .95rem; }
.tag-link {
  display: inline-flex; align-items: center; gap: 5px;
  background: #f1f5f9; color: var(--text-light);
  padding: 6px 14px; border-radius: 999px;
  font-size: .85rem; font-weight: 600;
  transition: all var(--transition); border: 1px solid transparent;
}
.tag-link:hover { background: var(--primary-soft); color: var(--primary); border-color: var(--primary-light); transform: translateY(-1px); }
.article-share {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding-top: 1.5rem; margin-top: 1.8rem;
  border-top: 1px solid var(--border);
}
.article-share .share-label { font-weight: 700; color: var(--text); font-size: .95rem; margin-right: 4px; }
.share-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg); color: var(--text-light); border: 1px solid var(--border);
  font-size: .95rem; transition: all var(--transition); cursor: pointer;
}
.share-btn:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.share-btn.wechat:hover { background: #07c160; color: #fff; border-color: #07c160; }
.share-btn.weibo:hover { background: #e6162d; color: #fff; border-color: #e6162d; }
.share-btn.twitter:hover { background: #0f172a; color: #fff; border-color: #0f172a; }
.share-btn.link:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Not Found ===== */
.not-found {
  text-align: center; padding: 4rem 2rem;
}
.not-found-icon {
  width: 96px; height: 96px; margin: 0 auto 1.8rem;
  border-radius: 50%; background: var(--primary-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.4rem; color: var(--primary);
}
.not-found h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: .8rem; }
.not-found p { color: var(--text-light); margin-bottom: 2rem; font-size: 1.05rem; }
.not-found .btn { margin-top: .5rem; }

/* ===== Sidebar ===== */
.article-side { margin-top: -1.4rem; }
.side-card {
  background: var(--surface); border-radius: var(--radius-lg);
  border: 1px solid rgba(226,232,240,.6);
  box-shadow: var(--shadow-sm); padding: 1.8rem; margin-bottom: 1.6rem;
  transition: box-shadow var(--transition);
}
.side-card:hover { box-shadow: var(--shadow-md); }
.side-card-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.1rem; font-weight: 800; color: var(--text);
  margin-bottom: 1.3rem; letter-spacing: -.01em;
}
.side-card-title i {
  width: 34px; height: 34px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: .9rem;
}
.side-card-v2 .side-card-title i { background: linear-gradient(135deg, var(--accent), var(--accent-light)); }
.side-card-v3 .side-card-title i { background: linear-gradient(135deg, var(--teal), #14b8a6); }
.side-list li { border-bottom: 1px dashed var(--border); }
.side-list li:last-child { border-bottom: none; }
.side-list a {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 4px; font-size: .92rem; color: var(--text-light);
  font-weight: 500; transition: all var(--transition);
}
.side-list a i { color: var(--text-lighter); font-size: .75rem; transition: all var(--transition); flex-shrink: 0; }
.side-list a:hover { color: var(--primary); padding-left: 10px; }
.side-list a:hover i { color: var(--accent); transform: translateX(3px); }
.side-list .side-date { margin-left: auto; font-size: .75rem; color: var(--text-lighter); white-space: nowrap; }
.side-cat-info { text-align: center; padding: 1rem 0; }
.side-cat-icon {
  width: 64px; height: 64px; margin: 0 auto 1rem;
  border-radius: 18px; background: var(--primary-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: var(--primary);
}
.side-cat-info .side-cat-name { font-size: 1.1rem; font-weight: 800; color: var(--text); }
.side-cat-info .side-cat-desc { font-size: .86rem; color: var(--text-light); margin: .6rem 0 1.2rem; line-height: 1.6; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 2px solid var(--primary); background: transparent; color: var(--primary);
  padding: 10px 24px; border-radius: 999px; font-size: .92rem; font-weight: 700;
  cursor: pointer; transition: all var(--transition);
}
.btn-outline:hover { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(30,58,138,.2); }
.btn-outline:active { transform: scale(.97); }
.btn-outline-accent { border-color: var(--accent); color: var(--accent); }
.btn-outline-accent:hover { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(217,119,6,.25); }
.site-brief { text-align: center; padding: .3rem 0; }
.site-brief-brand {
  font-size: 1.4rem; font-weight: 800; color: var(--text);
  margin-bottom: .6rem; display: block;
}
.site-brief-brand i { color: var(--primary); }
.site-brief p { font-size: .9rem; color: var(--text-light); line-height: 1.8; }

/* ===== Related Section ===== */
.related-section { background: var(--surface); padding: 4.5rem 0; border-top: 1px solid var(--border); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 2.8rem; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-soft); color: var(--primary);
  padding: 6px 16px; border-radius: 999px;
  font-size: .82rem; font-weight: 700; letter-spacing: .05em;
  margin-bottom: .9rem;
}
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.3; }
.section-title em { font-style: normal; color: var(--primary); }
.section-sub { color: var(--text-light); margin-top: .7rem; font-size: 1rem; }
.related-card {
  display: block; background: var(--surface); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); height: 100%;
  transition: all var(--transition);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.related-card-img { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.related-card:hover .related-card-img img { transform: scale(1.06); }
.related-card-img::after {
  content: "pg网页版"; position: absolute; left: 12px; top: 12px;
  background: rgba(15,23,42,.55); color: #fff;
  padding: 4px 12px; border-radius: 999px; font-size: .75rem;
  font-weight: 600; backdrop-filter: blur(6px);
}
.related-card-body { padding: 1.4rem 1.5rem 1.6rem; }
.related-card-cat {
  display: inline-block; font-size: .78rem; font-weight: 700;
  color: var(--accent); background: var(--accent-soft);
  padding: 3px 12px; border-radius: 999px; margin-bottom: .6rem;
}
.related-card h4 {
  font-size: 1.05rem; font-weight: 700; line-height: 1.5;
  color: var(--text); margin-bottom: .6rem;
  transition: color var(--transition);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.related-card:hover h4 { color: var(--primary); }
.related-card .related-card-date { font-size: .8rem; color: var(--text-lighter); }

/* ===== CTA Section ===== */
.article-cta {
  position: relative; padding: 4.5rem 0;
  background: linear-gradient(135deg, #0f2557 0%, #1e3a8a 45%, #0d9488 100%);
  color: #fff; text-align: center; overflow: hidden;
}
.article-cta::before {
  content: ""; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: .12; pointer-events: none;
}
.article-cta .container { position: relative; z-index: 2; }
.cta-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.3);
  padding: 7px 18px; border-radius: 999px;
  font-size: .85rem; font-weight: 700; letter-spacing: .03em;
  backdrop-filter: blur(8px); margin-bottom: 1.3rem;
}
.cta-badge i { color: var(--accent-light); }
.cta-title { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 800; margin-bottom: .8rem; letter-spacing: -.02em; }
.cta-text { font-size: 1.05rem; color: rgba(255,255,255,.8); max-width: 640px; margin: 0 auto 2rem; line-height: 1.8; }
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: #fff; border: none; padding: 13px 30px; border-radius: 999px;
  font-size: .95rem; font-weight: 700; cursor: pointer;
  box-shadow: 0 10px 26px rgba(217,119,6,.3);
  transition: all var(--transition); white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(217,119,6,.4); color: #fff; }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 10px 26px rgba(30,58,138,.3);
}
.btn-primary:hover { box-shadow: 0 14px 34px rgba(30,58,138,.4); }
.btn-white {
  background: #fff; color: var(--primary);
  box-shadow: 0 10px 26px rgba(255,255,255,.2);
}
.btn-white:hover { background: #f8fafc; color: var(--primary-dark); box-shadow: 0 14px 34px rgba(255,255,255,.3); }
.btn-lg { padding: 15px 38px; font-size: 1rem; }
.btn:focus-visible, .header-cta:focus-visible, .nav-toggle:focus-visible,
.share-btn:focus-visible, .btn-outline:focus-visible, .nav-link:focus-visible {
  outline: 3px solid rgba(30,58,138,.4); outline-offset: 2px;
}

/* ===== Footer ===== */
.site-footer {
  background: #0a1628; color: rgba(255,255,255,.75);
  padding: 3.5rem 0 2rem; position: relative;
}
.site-footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.15), transparent);
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px; padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .brand { color: #fff; font-size: 1.4rem; margin-bottom: .8rem; }
.footer-brand .brand-icon {
  width: 38px; height: 38px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  font-size: .95rem;
}
.footer-brand p { font-size: .9rem; line-height: 1.9; color: rgba(255,255,255,.6); max-width: 340px; }
.footer-col h4 {
  font-size: 1rem; font-weight: 700; color: #fff;
  margin-bottom: 1.2rem; letter-spacing: .02em;
}
.footer-col ul li { margin-bottom: .65rem; }
.footer-col ul a {
  color: rgba(255,255,255,.6); font-size: .92rem;
  transition: all var(--transition); display: inline-flex; align-items: center; gap: 6px;
}
.footer-col ul a::before { content: "›"; color: var(--accent-light); opacity: .7; transition: transform .3s; }
.footer-col ul a:hover { color: #fff; padding-left: 4px; }
.footer-col ul a:hover::before { transform: translateX(2px); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap;
  padding-top: 1.8rem; font-size: .82rem; color: rgba(255,255,255,.4);
  gap: 10px;
}
.footer-bottom a { color: rgba(255,255,255,.45); }
.footer-bottom a:hover { color: var(--accent-light); }
.footer-bottom .footer-domain { font-family: ui-monospace, monospace; letter-spacing: .02em; }

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .container { padding: 0 20px; }
  .article-card-wrap { padding: 2rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media screen and (max-width: 900px) {
  .main-nav {
    position: fixed; top: var(--header-h); left: 20px; right: 20px;
    background: var(--surface); border-radius: 16px;
    box-shadow: var(--shadow-lg); border: 1px solid var(--border);
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 16px; transform: translateY(-16px); opacity: 0;
    visibility: hidden; transition: all .3s cubic-bezier(.4,0,.2,1);
    z-index: 150;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav .nav-link { padding: 13px 20px; border-radius: 10px; font-size: 1rem; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .article-card-wrap { margin-top: 0; }
  .article-side { margin-top: 1.5rem; }
}
@media screen and (max-width: 768px) {
  :root { --header-h: 64px; }
  .article-hero { padding: 3rem 0; }
  .article-hero-title { font-size: 1.65rem; }
  .article-card-wrap { padding: 1.4rem; }
  .article-content { font-size: 1rem; line-height: 1.85; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-btns .btn { width: 100%; }
}
@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-hero { padding: 2.4rem 0; }
  .article-hero-title { font-size: 1.35rem; }
  .breadcrumb { font-size: .82rem; }
  .article-card-wrap { padding: 1.1rem; border-radius: 14px; }
  .article-meta { gap: 8px; }
  .meta-item { font-size: .8rem; padding: 4px 10px; }
  .article-content h2 { font-size: 1.3rem; }
  .article-content h3 { font-size: 1.1rem; }
  .article-tags .tag-link { font-size: .78rem; padding: 5px 10px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .related-card-body { padding: 1.1rem 1.2rem 1.3rem; }
}

/* roulang page: category1 */
:root {
  --primary: #0f2b46;
  --primary-light: #1d3f63;
  --accent: #f0b429;
  --accent-dark: #d99f1d;
  --bg: #f5f7fa;
  --bg-deep: #0b1f33;
  --text: #1a2433;
  --text-weak: #647084;
  --border: #e3e8ef;
  --card-bg: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 32px rgba(15, 43, 70, 0.08);
  --shadow-lg: 0 24px 60px rgba(15, 43, 70, 0.14);
  --space: 96px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
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;
}
h1, h2, h3, h4, h5, h6 { font-family: inherit; line-height: 1.3; margin: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; cursor: pointer; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; }
.grid-container { max-width: 1200px; padding: 0 24px; }
.grid-x > .cell { min-width: 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  line-height: 1.4;
  color: #fff;
  background: transparent;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(15, 43, 70, 0.24); }
.btn-accent { background: var(--accent); color: var(--primary); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(240, 180, 41, 0.4); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn:focus-visible, .nav-link:focus-visible, .nav-toggle:focus-visible, .faq-q:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand em { font-style: normal; color: var(--accent-dark); }
.brand-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-weak);
  transition: all .2s ease;
}
.nav-link:hover { color: var(--primary); background: #f0f3f8; }
.nav-link.active { color: #fff; background: var(--primary); }
.header-cta { flex-shrink: 0; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  padding: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--primary);
  border-radius: 2px;
  transition: transform .3s ease, opacity .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 {
  position: relative;
  background: linear-gradient(120deg, rgba(11,31,51,0.94), rgba(15,43,70,0.84)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 96px 0 80px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 24px;
}
.breadcrumb i { font-size: 12px; color: rgba(255,255,255,0.4); }
.breadcrumb a:hover { color: var(--accent); }
.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.page-hero .lead {
  font-size: 18px;
  max-width: 640px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 760px;
}
.hero-stat {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  backdrop-filter: blur(4px);
}
.hero-stat b {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.hero-stat span {
  font-size: 13px;
  color: rgba(255,255,255,0.72);
}
.section { padding: var(--space) 0; }
.section-alt { background: #fff; }
.section-dark { background: var(--bg-deep); color: #fff; position: relative; overflow: hidden; }
.section-dark::before {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(240,180,41,0.06);
  top: -140px;
  right: -120px;
}
.section-head { max-width: 760px; margin-bottom: 48px; position: relative; z-index: 1; }
.section-head .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.section-head .kicker::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--primary);
  letter-spacing: -0.01em;
}
.section-dark .section-head h2 { color: #fff; }
.section-head p { color: var(--text-weak); font-size: 16px; margin-top: 12px; }
.section-dark .section-head p { color: rgba(255,255,255,0.6); }
.guide-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.guide-card .card-media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.guide-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.guide-card:hover .card-media img { transform: scale(1.05); }
.guide-card .card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  z-index: 2;
}
.guide-card .card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.guide-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.guide-card p { color: var(--text-weak); font-size: 14px; flex: 1; }
.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-weak);
  font-size: 13px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.card-meta i { color: var(--accent-dark); }
.feature-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: box-shadow .3s ease;
}
.feature-card:hover { box-shadow: var(--shadow-lg); }
.feature-card .feature-media { position: relative; overflow: hidden; }
.feature-card .feature-media img { aspect-ratio: 16/10; width: 100%; object-fit: cover; transition: transform .4s ease; }
.feature-card:hover .feature-media img { transform: scale(1.03); }
.feature-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: #fff;
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.feature-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.feature-body h3 { font-size: 22px; font-weight: 800; margin-bottom: 10px; color: var(--text); }
.feature-body p { color: var(--text-weak); font-size: 14px; flex: 1; }
.feature-body .link-more { margin-top: 20px; font-weight: 700; color: var(--accent-dark); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.feature-body .link-more:hover { color: var(--primary); gap: 10px; }
.guide-list { display: flex; flex-direction: column; gap: 14px; height: 100%; }
.guide-list-item {
  display: flex;
  gap: 18px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all .3s ease;
  align-items: flex-start;
}
.guide-list-item:hover { box-shadow: var(--shadow); transform: translateX(4px); border-color: #d4dce6; }
.guide-list-item .list-num {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  margin-top: 2px;
}
.guide-list-item .list-content { flex: 1; }
.guide-list-item h4 { font-size: 17px; font-weight: 700; margin-bottom: 4px; color: var(--text); }
.guide-list-item .list-excerpt { font-size: 14px; color: var(--text-weak); margin-bottom: 8px; }
.guide-list-item .list-link { font-size: 13px; font-weight: 600; color: var(--accent-dark); display: inline-flex; align-items: center; gap: 4px; }
.guide-list-item .list-link:hover { color: var(--primary); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
  position: relative;
  z-index: 1;
}
.step-item {
  position: relative;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: background .3s ease, transform .3s ease;
}
.step-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
.step-item::before {
  counter-increment: step;
  content: "0" counter(step);
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
  line-height: 1;
}
.step-item h3 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.step-item p { color: rgba(255,255,255,0.65); font-size: 14px; }
.resource-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: stretch;
}
.resource-main {
  background: linear-gradient(135deg, #0f2b46, #1d3f63);
  border-radius: var(--radius);
  padding: 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.resource-main::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  background: rgba(240,180,41,0.12);
  border-radius: 50%;
  right: -40px;
  bottom: -60px;
}
.resource-main h3 { font-size: 26px; margin-bottom: 12px; position: relative; z-index: 1; }
.resource-main p { color: rgba(255,255,255,0.75); font-size: 15px; position: relative; z-index: 1; }
.resource-main .btn { margin-top: 20px; align-self: flex-start; position: relative; z-index: 1; }
.resource-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.fact-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s ease;
}
.fact-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.fact-card i { font-size: 20px; color: var(--accent-dark); margin-bottom: 10px; }
.fact-card b { display: block; font-size: 26px; color: var(--primary); line-height: 1.2; }
.fact-card span { font-size: 13px; color: var(--text-weak); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .3s ease;
}
.faq-item.active { box-shadow: var(--shadow); border-color: #d4dce6; }
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 22px 24px;
  background: none;
  border: none;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: color .2s ease;
}
.faq-q:hover { color: var(--primary); }
.faq-q i { transition: transform .3s ease, color .3s ease; color: var(--text-weak); font-size: 16px; }
.faq-item.active .faq-q i { transform: rotate(180deg); color: var(--accent-dark); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.active .faq-a { max-height: 320px; }
.faq-a p { padding: 0 24px 22px; color: var(--text-weak); font-size: 15px; line-height: 1.8; }
.cta-box {
  background: linear-gradient(120deg, var(--primary), #1d3f63);
  border-radius: 24px;
  padding: 56px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
}
.cta-box::after {
  content: '';
  width: 260px;
  height: 260px;
  background: rgba(240,180,41,0.16);
  border-radius: 50%;
  position: absolute;
  right: -70px;
  bottom: -70px;
}
.cta-box h3 { font-size: 28px; margin-bottom: 8px; }
.cta-box p { color: rgba(255,255,255,0.75); margin-bottom: 0; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 2; flex-shrink: 0; }
.site-footer {
  background: var(--bg-deep);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-brand .brand-icon { background: rgba(255,255,255,0.12); }
.footer-brand .brand em { color: var(--accent); }
.footer-brand p { font-size: 14px; max-width: 380px; color: rgba(255,255,255,0.55); }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.6); transition: color .2s ease; }
.footer-col ul a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
  gap: 8px;
}
@media (max-width: 1024px) {
  :root { --space: 72px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .resource-grid { grid-template-columns: 1fr; }
  .resource-facts { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  :root { --space: 56px; }
  .header-inner { height: 64px; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    transform: translateY(-130%);
    opacity: 0;
    transition: all .35s ease;
    border-bottom: 1px solid var(--border);
    z-index: 99;
    gap: 4px;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .nav-link { padding: 12px 16px; border-radius: 12px; text-align: center; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .page-hero { padding: 60px 0 48px; }
  .page-hero h1 { font-size: 32px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .section-head h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-box { flex-direction: column; padding: 36px; text-align: center; }
  .cta-actions { justify-content: center; }
  .steps-grid { grid-template-columns: 1fr; }
  .resource-facts { grid-template-columns: repeat(2, 1fr); }
  .resource-main { padding: 32px; }
}
@media (max-width: 520px) {
  .page-hero { padding: 44px 0 36px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero .lead { font-size: 16px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .hero-stat { padding: 14px; }
  .hero-stat b { font-size: 22px; }
  .resource-facts { grid-template-columns: 1fr; }
  .cta-box { padding: 28px 20px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .cta-actions .btn { width: 100%; }
}

/* roulang page: category2 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #0ea5e9;
  --accent-dark: #0284c7;
  --dark-bg: #0b1322;
  --dark-card: rgba(255, 255, 255, 0.03);
  --bg: #f7f9fc;
  --card-bg: #ffffff;
  --text: #1a2333;
  --text-light: #526174;
  --text-muted: #8494a7;
  --border: #e4e9f1;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
  --space-section: 96px;
  --space-section-sm: 64px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SFMono-Regular", Consolas, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--text); background: var(--bg); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
::selection { background: var(--primary-light); color: var(--primary-dark); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: 68px;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  flex-shrink: 0;
}
.brand .brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.28);
}
.brand em {
  font-style: normal;
  color: var(--primary);
  font-weight: 800;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  transition: all 0.25s ease;
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.header-cta {
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: #fff;
  transition: all 0.25s ease;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.36);
  color: #fff;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.24);
}
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}
.btn-light:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn-sm { padding: 9px 18px; font-size: 14px; border-radius: 10px; }
.btn:focus-visible, .nav-link:focus-visible, .nav-toggle:focus-visible, a:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.4);
  outline-offset: 2px;
}

/* ---------- Hero ---------- */
.inner-hero {
  position: relative;
  padding: 110px 0 120px;
  background: linear-gradient(135deg, #0b1322 0%, #1a2744 45%, #1e3a5f 100%);
  overflow: hidden;
  color: #fff;
}
.inner-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  opacity: 0.3;
  mix-blend-mode: overlay;
}
.inner-hero::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.35) 0%, transparent 70%);
  top: -150px;
  right: -100px;
  pointer-events: none;
}
.inner-hero .hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
}
.hero-badge i { color: #fbbf24; }
.inner-hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}
.inner-hero h1 span { color: #7cb0ff; }
.inner-hero p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}
.hero-meta-item i { color: #7cb0ff; }

/* ---------- Section common ---------- */
.section { padding: var(--space-section) 0; }
.section-alt { background: #fff; }
.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.eyebrow::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.section-head.center .eyebrow::after {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.section-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ---------- Score Section ---------- */
.score-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.score-panel {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 44px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.score-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.score-overall {
  text-align: center;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 30px;
}
.score-number {
  font-size: 84px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.03em;
}
.score-label {
  font-size: 15px;
  color: var(--text-light);
  margin-top: 8px;
  font-weight: 500;
}
.score-detail {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.score-item { width: 100%; }
.score-item-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.score-item-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.score-item-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-mono);
}
.progress-track {
  height: 8px;
  background: #eef1f6;
  border-radius: 8px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  animation: growWidth 1.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  transform-origin: left;
}
@keyframes growWidth {
  from { width: 0; }
}
.score-side .score-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 26px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.score-side .score-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.score-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.score-card-head .card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.score-card-title {
  font-size: 16px;
  font-weight: 700;
}
.score-card-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- Review Grid ---------- */
.review-method-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.method-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
  position: relative;
  overflow: hidden;
}
.method-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}
.method-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.method-card:hover::after { transform: scaleX(1); }
.method-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary-light), #e0f2fe);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.method-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.method-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 14px;
}
.method-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg);
  border-radius: 10px;
  padding: 12px 14px;
}
.method-stat-line {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}
.method-stat-line span:first-child { color: var(--text-muted); }
.method-stat-line span:last-child { font-weight: 600; color: var(--text); font-family: var(--font-mono); }

/* ---------- Article cards ---------- */
.article-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.article-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.article-cover {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.article-card:hover .article-cover img { transform: scale(1.06); }
.article-cover .cover-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.article-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.article-meta i { margin-right: 4px; }
.article-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
  transition: color 0.25s ease;
}
.article-card:hover .article-body h3 { color: var(--primary); }
.article-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}
.article-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s ease;
}
.article-link:hover { gap: 10px; }

/* ---------- Compare panel ---------- */
.compare-wrap {
  background: var(--dark-bg);
  border-radius: 24px;
  padding: 48px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.compare-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
  opacity: 0.12;
  mix-blend-mode: screen;
}
.compare-wrap .section-title { color: #fff; }
.compare-wrap .section-desc { color: rgba(255, 255, 255, 0.7); }
.compare-table-wrap { position: relative; z-index: 2; overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  min-width: 640px;
  margin-top: 32px;
}
.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: center;
  font-size: 14px;
}
.compare-table thead th {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.compare-table thead th:first-child {
  text-align: left;
  border-radius: 12px 0 0 0;
}
.compare-table thead th:last-child {
  border-radius: 0 12px 0 0;
  background: rgba(37, 99, 235, 0.3);
}
.compare-table tbody td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.7);
}
.compare-table tbody td:first-child {
  text-align: left;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}
.compare-table tbody td:last-child {
  background: rgba(37, 99, 235, 0.08);
  color: #7cb0ff;
  font-weight: 600;
}
.compare-table tbody tr:last-child td:first-child { border-radius: 0 0 0 12px; }
.compare-table tbody tr:last-child td:last-child { border-radius: 0 0 12px 0; }
.compare-table .fa-check-circle { color: #10b981; }
.compare-table .fa-times-circle { color: #f87171; }
.compare-table .fa-minus-circle { color: #fbbf24; }

/* ---------- Timeline ---------- */
.timeline-list {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  padding-left: 36px;
}
.timeline-list::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary-light), var(--primary));
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  padding-bottom: 36px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -31px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px var(--primary-light);
}
.timeline-item .tl-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.timeline-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}
.timeline-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 0;
  max-width: 600px;
}

/* ---------- FAQ ---------- */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
}
.faq-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}
.faq-item h3 {
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}
.faq-item h3 i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 5px;
  flex-shrink: 0;
}
.faq-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 0;
  padding-left: 24px;
}

/* ---------- CTA ---------- */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') no-repeat center center / cover;
  opacity: 0.12;
  mix-blend-mode: screen;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  color: #fff;
}
.cta-inner h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
}
.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #0b1322;
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .brand {
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 0;
  max-width: 360px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: all 0.25s ease;
}
.footer-col ul a:hover {
  color: #7cb0ff;
  padding-left: 6px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- Responsive ---------- */
@media screen and (max-width: 1024px) {
  :root { --space-section: 76px; }
  .review-method-grid { grid-template-columns: repeat(2, 1fr); }
  .article-list { grid-template-columns: repeat(2, 1fr); }
  .score-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .inner-hero h1 { font-size: 42px; }
}
@media screen and (max-width: 820px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
    border-radius: 0 0 20px 20px;
    transform: translateY(-120%);
    transition: transform 0.35s ease, opacity 0.3s ease;
    opacity: 0;
    z-index: -1;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .nav-link { padding: 14px 18px; border-radius: 12px; font-size: 16px; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .compare-wrap { padding: 32px 24px; }
}
@media screen and (max-width: 640px) {
  :root { --space-section: 56px; }
  .inner-hero { padding: 72px 0 88px; }
  .inner-hero h1 { font-size: 32px; }
  .inner-hero p { font-size: 16px; }
  .section-title { font-size: 28px; }
  .review-method-grid { grid-template-columns: 1fr; }
  .article-list { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .score-panel { padding: 28px 22px; }
  .timeline-list { padding-left: 28px; }
  .cta-inner h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-brand p { max-width: 100%; }
  .section-head { margin-bottom: 32px; }
}