/* roulang page: index */
:root {
  --primary: #0A1628;
  --primary-light: #132743;
  --primary-lighter: #1D3557;
  --accent: #E63946;
  --accent-light: #FF6B6B;
  --bg: #F5F7FA;
  --card-bg: #FFFFFF;
  --text: #1E293B;
  --text-light: #64748B;
  --text-mute: #94A3B8;
  --border: #E2E8F0;
  --rounded: 14px;
  --shadow: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.14);
  --transition: all 0.3s ease;
  --header-h: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-h);
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button { border: none; background: none; font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; outline: none; }

.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: 1050;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 22px;
  color: #fff;
  letter-spacing: 0.5px;
}
.logo-brand .logo-dot {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), #FF8C42);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav .nav-link-custom {
  color: rgba(255,255,255,0.72);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
}
.main-nav .nav-link-custom:hover,
.main-nav .nav-link-custom.active {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.nav-cta-btn {
  background: var(--accent);
  color: #fff;
  padding: 8px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  margin-left: 10px;
  transition: var(--transition);
}
.nav-cta-btn:hover {
  background: #d62839;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(230, 57, 70, 0.35);
}

/* ===== 移动端底部 Tab ===== */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(10, 22, 40, 0.98);
  border-top: 1px solid rgba(255,255,255,0.08);
  z-index: 1050;
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
}
.mobile-tabbar .tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: rgba(255,255,255,0.55);
  font-size: 11px;
  transition: var(--transition);
}
.mobile-tabbar .tab-item i { font-size: 20px; }
.mobile-tabbar .tab-item.active,
.mobile-tabbar .tab-item:hover {
  color: var(--accent-light);
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, rgba(10,22,40,0.92) 0%, rgba(13,32,58,0.85) 60%, rgba(30,53,87,0.75) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 110px 0 100px;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(230,57,70,0.2);
  border: 1px solid rgba(230,57,70,0.4);
  color: #FFA0A6;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 24px;
}
.hero-badge .pulse-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}
.hero-section h1 {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero-section h1 .gradient-text {
  background: linear-gradient(90deg, var(--accent), #FF8C42);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-section .lead {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
  max-width: 640px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
}
.hero-stats .stat-item {
  border-left: 2px solid rgba(255,255,255,0.2);
  padding-left: 16px;
}
.hero-stats .stat-num {
  font-size: 28px;
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
}
.hero-stats .stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 10px;
  transition: var(--transition);
  font-size: 16px;
}
.btn-main:hover {
  background: #d62839;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(230,57,70,0.4);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid rgba(255,255,255,0.4);
  color: #fff;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 10px;
  transition: var(--transition);
}
.btn-ghost:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
  color: #fff;
}

/* ===== 板块标题 ===== */
.section-title-wrap {
  text-align: center;
  margin-bottom: 50px;
}
.section-title-wrap .sec-tag {
  display: inline-block;
  background: rgba(230,57,70,0.08);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.section-title-wrap h2 {
  font-size: 34px;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 10px;
}
.section-title-wrap p {
  color: var(--text-light);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 功能卡片 ===== */
.feature-grid { gap: 24px; }
.feature-card {
  border-radius: var(--rounded);
  border: 1px solid var(--border);
  background: var(--card-bg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(230,57,70,0.2);
}
.feature-card .card-img-wrap {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.feature-card .card-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.feature-card:hover .card-img-wrap img { transform: scale(1.05); }
.feature-card .card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,22,40,0.3), transparent 60%);
}
.feature-card .card-body {
  padding: 26px;
}
.feature-card .card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: rgba(230,57,70,0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  margin-top: 14px;
}
.card-link:hover { gap: 10px; color: #d62839; }

/* ===== 分类卡片 ===== */
.category-grid { gap: 24px; }
.category-card {
  border-radius: var(--rounded);
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  position: relative;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.category-card .cat-img {
  height: 170px;
  position: relative;
}
.category-card .cat-img img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.category-card .cat-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10,22,40,0.65));
}
.category-card .cat-body {
  padding: 24px;
}
.category-card .cat-tag {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.category-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.category-card p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 16px;
}
.category-card .cat-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  background: #FAFBFC;
}
.category-card .cat-footer span {
  color: var(--text-mute);
  font-size: 13px;
}
.category-card .cat-footer a {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
}

/* ===== 内容列表 ===== */
.list-section {
  background: var(--card-bg);
  border-radius: var(--rounded);
  border: 1px solid var(--border);
  padding: 32px;
}
.list-section .list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px dashed var(--border);
  transition: var(--transition);
}
.list-section .list-item:last-child { border-bottom: none; }
.list-section .list-item:hover {
  padding-left: 8px;
}
.list-section .list-item .item-info {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.list-section .list-item .item-badge {
  background: rgba(230,57,70,0.08);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 4px;
  white-space: nowrap;
}
.list-section .list-item .item-title {
  font-weight: 500;
  color: var(--text);
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.list-section .list-item .item-meta {
  color: var(--text-mute);
  font-size: 13px;
  white-space: nowrap;
}

/* ===== 数据区 ===== */
.stats-band {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  padding: 70px 0;
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: "";
  position: absolute;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(230,57,70,0.15), transparent 70%);
  top: -100px; right: -50px;
}
.stats-band .stat-card {
  text-align: center;
  color: #fff;
  padding: 24px 10px;
}
.stats-band .stat-card .num {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.2;
}
.stats-band .stat-card .num .suffix { color: var(--accent-light); }
.stats-band .stat-card .label {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  margin-top: 6px;
}

/* ===== 流程 ===== */
.process-line {
  position: relative;
}
.process-line::before {
  content: "";
  position: absolute;
  top: 30px; bottom: 30px;
  left: 50%;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), rgba(230,57,70,0.1));
  transform: translateX(-50%);
}
.process-step {
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 24px 0;
  position: relative;
}
.process-step .step-num {
  width: 60px; height: 60px;
  background: var(--primary);
  color: var(--accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 6px 20px rgba(10,22,40,0.2);
  border: 2px solid rgba(230,57,70,0.3);
  z-index: 2;
}
.process-step .step-content {
  background: var(--card-bg);
  border-radius: var(--rounded);
  border: 1px solid var(--border);
  padding: 22px 28px;
  flex: 1;
}
.process-step .step-content h4 {
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 6px;
}
.process-step .step-content p {
  color: var(--text-light);
  font-size: 14px;
  margin: 0;
}

/* ===== FAQ ===== */
.faq-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--rounded);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-card:hover {
  border-color: rgba(230,57,70,0.3);
}
.faq-card .faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
}
.faq-card .faq-q .faq-icon {
  font-size: 20px;
  color: var(--accent);
  transition: transform 0.3s;
}
.faq-card .faq-q.active .faq-icon { transform: rotate(45deg); }
.faq-card .faq-a {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
}
.cta-box {
  background: linear-gradient(120deg, var(--primary), var(--primary-light));
  border-radius: 24px;
  padding: 60px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  width: 100%; height: 100%;
  background: url('/assets/images/backpic/back-2.png') center/cover;
  opacity: 0.15;
  inset: 0;
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 900;
  margin-bottom: 12px;
  position: relative;
}
.cta-box p {
  color: rgba(255,255,255,0.75);
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 90px;
  margin-top: 80px;
}
.site-footer .footer-brand {
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 8px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  padding: 4px 0;
}
.footer-links a {
  color: rgba(255,255,255,0.5);
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-divider {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin: 36px 0;
}
.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  text-align: center;
}

/* ===== 备用 ===== */
.text-accent { color: var(--accent); }
.bg-dark-section { background: var(--primary); color: #fff; }
section { padding: 80px 0; }
.section-alt { background: #FCFCFD; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  body { padding-bottom: 70px; }
  .main-nav { display: none; }
  .mobile-tabbar { display: flex; }
  .nav-cta-btn { display: none; }
  .hero-section { padding: 80px 0 70px; }
  .hero-section h1 { font-size: 34px; }
}

@media (max-width: 768px) {
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-stats .stat-item { flex: 1; min-width: 120px; }
  .process-line::before { left: 30px; }
  .process-step { flex-direction: column; align-items: flex-start; gap: 14px; }
  .process-step .step-num { width: 50px; height: 50px; font-size: 16px; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 24px; }
  .list-section { padding: 20px; }
  .section-title-wrap h2 { font-size: 26px; }
}

@media (max-width: 520px) {
  body { font-size: 14px; }
  .hero-section h1 { font-size: 26px; }
  .hero-section .lead { font-size: 15px; }
  .btn-main, .btn-ghost { padding: 10px 20px; font-size: 14px; }
  .hero-stats .stat-num { font-size: 20px; }
  .feature-card .card-img-wrap { height: 150px; }
  .category-card .cat-img { height: 130px; }
  .list-section .list-item { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (max-width: 360px) {
  .hero-stats { gap: 12px; }
  .hero-stats .stat-item { padding-left: 10px; }
  .hero-stats .stat-num { font-size: 18px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1b2a;
            --primary-light: #16233a;
            --primary-dark: #070d16;
            --accent: #e63946;
            --accent-hover: #ff5561;
            --accent-soft: rgba(230, 57, 70, 0.12);
            --accent-secondary: #f77f00;
            --bg-body: #0a0f1a;
            --bg-card: #111c2e;
            --bg-card-hover: #16233a;
            --bg-panel: #0e1726;
            --text-light: #e8edf4;
            --text-muted: #8b9bb0;
            --text-faint: #5a6b80;
            --border-color: #1e2c40;
            --border-light: #273952;
            --radius: 14px;
            --radius-lg: 22px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow: 0 10px 36px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.45);
            --transition: 0.25s ease;
            --transition-slow: 0.45s ease;
            --header-height: 76px;
            --space-section: 96px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
        }

        /* ===== Reset / Base ===== */
        *,
        *::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);
            background-color: var(--bg-body);
            color: var(--text-light);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }
        body.nav-lock {
            overflow: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 通用排版工具 ===== */
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }
        .section-dark {
            background: var(--bg-panel);
        }
        .section-light {
            background: var(--bg-body);
        }
        .section-head {
            text-align: center;
            margin-bottom: 52px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 16px;
            border: 1px solid rgba(230, 57, 70, 0.25);
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.7;
        }
        .section-head h2 .highlight-red {
            color: var(--accent);
        }
        .section-head h2 .highlight-orange {
            color: var(--accent-secondary);
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        /* ===== Header / 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(7, 13, 22, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            background: rgba(7, 13, 22, 0.97);
            box-shadow: var(--shadow-sm);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.2px;
            white-space: nowrap;
        }
        .logo-brand:hover {
            color: var(--text-light);
        }
        .logo-dot {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent), #ff6b35);
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link-custom {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            gap: 6px;
            transition: all var(--transition);
            position: relative;
        }
        .nav-link-custom:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-link-custom.active {
            color: var(--text-light);
            background: var(--accent-soft);
        }
        .nav-link-custom.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 22px;
            border-radius: 100px;
            background: linear-gradient(135deg, var(--accent), #ff6b35);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            margin-left: 12px;
            border: 0;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.28);
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
            color: #fff;
        }
        .nav-cta-btn:focus-visible {
            outline: 3px solid rgba(230, 57, 70, 0.5);
            outline-offset: 2px;
        }
        @media (max-width: 992px) {
            .nav-link-custom {
                padding: 0 12px;
                font-size: 13px;
            }
            .nav-cta-btn {
                padding: 0 16px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .site-header .main-nav {
                display: none;
            }
            .site-header {
                height: 66px;
            }
            .logo-dot {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .logo-brand {
                font-size: 17px;
            }
        }

        /* ===== 移动端底部 Tab 导航 ===== */
        .mobile-bottom-tabs {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 2000;
            display: none;
            background: rgba(7, 13, 22, 0.96);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-color);
            padding: 4px 10px calc(4px + env(safe-area-inset-bottom));
            gap: 2px;
        }
        .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 8px 4px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            color: var(--text-muted);
            gap: 4px;
            transition: all var(--transition);
            min-width: 0;
        }
        .tab-item i {
            font-size: 18px;
            line-height: 1;
        }
        .tab-item:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.03);
        }
        .tab-item.active {
            color: var(--accent);
        }
        .tab-item.tab-cta {
            background: linear-gradient(135deg, var(--accent), #ff6b35);
            color: #fff;
            border-radius: 14px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .tab-item.tab-cta:hover {
            color: #fff;
            transform: scale(1.02);
        }
        @media (max-width: 768px) {
            .mobile-bottom-tabs {
                display: flex;
            }
            body {
                padding-bottom: 74px;
            }
        }

        /* ===== 页面 Hero ===== */
        .page-hero {
            position: relative;
            padding: 110px 0 90px;
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 13, 22, 0.95) 0%, rgba(7, 13, 22, 0.78) 50%, rgba(230, 57, 70, 0.25) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
        }
        .breadcrumb-bar a:hover {
            color: var(--accent);
        }
        .breadcrumb-bar .sep {
            color: var(--text-faint);
        }
        .breadcrumb-bar .current {
            color: var(--text-light);
            font-weight: 600;
        }
        .page-hero h1 {
            font-size: 56px;
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.1;
            color: var(--text-light);
            margin-bottom: 18px;
            max-width: 680px;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 590px;
            line-height: 1.75;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 100px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-light);
            backdrop-filter: blur(8px);
        }
        .tag-pill i {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 72px 0 56px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .tag-pill {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

        /* ===== 入口卡片 ===== */
        .entry-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: all var(--transition);
            position: relative;
        }
        .entry-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow);
        }
        .entry-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .entry-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }
        .entry-card:hover .entry-img-wrap img {
            transform: scale(1.05);
        }
        .entry-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg-card), transparent);
        }
        .entry-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(7, 13, 22, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-light);
            font-size: 18px;
            font-weight: 800;
            font-family: var(--font-mono);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            z-index: 2;
        }
        .entry-card-body {
            padding: 28px 24px 24px;
            position: relative;
        }
        .entry-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 22px;
            margin-bottom: 16px;
            border: 1px solid rgba(230, 57, 70, 0.2);
        }
        .entry-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .entry-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            transition: gap var(--transition), color var(--transition);
        }
        .card-link:hover {
            gap: 12px;
            color: var(--accent-hover);
        }

        /* ===== 设备支持 ===== */
        .device-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            height: 100%;
            transition: all var(--transition);
            position: relative;
        }
        .device-card:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
        }
        .device-card .device-icon {
            font-size: 40px;
            color: var(--accent-secondary);
            margin-bottom: 16px;
            display: block;
        }
        .device-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .device-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .device-card .device-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: #66bb6a;
            background: rgba(102, 187, 106, 0.1);
            padding: 4px 12px;
            border-radius: 100px;
            margin-top: 14px;
            border: 1px solid rgba(102, 187, 106, 0.2);
        }
        .device-card .device-status i {
            font-size: 10px;
        }

        /* ===== 操作流程时间线 ===== */
        .process-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .process-wrap {
            position: relative;
            padding: 40px 0;
        }
        .process-wrap::before {
            content: "";
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, transparent, var(--border-light) 10%, var(--border-light) 90%, transparent);
        }
        .process-item {
            position: relative;
            margin-bottom: 48px;
        }
        .process-item:last-child {
            margin-bottom: 0;
        }
        .process-item .row {
            align-items: center;
        }
        .process-step-num {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            font-family: var(--font-mono);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 6px var(--bg-panel), 0 0 24px rgba(230, 57, 70, 0.35);
            z-index: 2;
        }
        .process-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            max-width: 460px;
            transition: all var(--transition);
        }
        .process-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .process-card h4 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .process-card h4 i {
            color: var(--accent);
        }
        .process-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .process-card .step-tip {
            margin-top: 14px;
            font-size: 12px;
            color: var(--text-faint);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        @media (max-width: 768px) {
            .process-wrap::before {
                display: none;
            }
            .process-step-num {
                position: static;
                transform: none;
                margin: 0 auto 16px;
                width: 44px;
                height: 44px;
                font-size: 16px;
            }
            .process-card {
                max-width: 100%;
                padding: 22px;
            }
            .process-item .row {
                flex-direction: column;
            }
        }

        /* ===== 安全提示面板 ===== */
        .security-panel {
            background: linear-gradient(135deg, #131d2c, #0d1524);
            border: 1px solid rgba(230, 57, 70, 0.25);
            border-radius: var(--radius-lg);
            padding: 40px;
            position: relative;
            overflow: hidden;
        }
        .security-panel::before {
            content: "!";
            position: absolute;
            right: 30px;
            top: -20px;
            font-size: 160px;
            font-weight: 900;
            font-family: var(--font-mono);
            color: rgba(230, 57, 70, 0.08);
            line-height: 1;
        }
        .security-panel .sec-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .security-panel .sec-title i {
            color: var(--accent);
            font-size: 28px;
        }
        .security-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .security-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .security-list li:last-child {
            border-bottom: none;
        }
        .security-list li i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 2px;
            flex-shrink: 0;
        }
        .security-list li strong {
            color: var(--text-light);
        }
        @media (max-width: 768px) {
            .security-panel {
                padding: 28px 20px;
            }
            .security-panel .sec-title {
                font-size: 18px;
            }
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color) !important;
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(230, 57, 70, 0.4) !important;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-light);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none;
            border: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent);
        }
        .faq-accordion .accordion-button:focus {
            outline: none;
            box-shadow: none;
            border-color: transparent;
        }
        .faq-accordion .accordion-button::after {
            background-image: none;
            content: "\F4FE";
            font-family: 'bootstrap-icons';
            font-size: 16px;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--accent-soft);
            transition: all var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .faq-accordion .accordion-body {
            background: var(--bg-card);
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 13, 22, 0.92) 0%, rgba(7, 13, 22, 0.75) 100%);
        }
        .cta-panel {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            padding: 20px;
        }
        .cta-panel h2 {
            font-size: 40px;
            font-weight: 900;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .cta-panel p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 30px;
            line-height: 1.7;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent), #ff6b35);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            border: none;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.34);
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            color: #fff;
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.46);
        }
        .cta-btn:active {
            transform: translateY(0);
        }
        .cta-btn:focus-visible {
            outline: 3px solid rgba(230, 57, 70, 0.5);
            outline-offset: 3px;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 60px 0;
                background-attachment: scroll;
            }
            .cta-panel h2 {
                font-size: 28px;
            }
            .cta-panel p {
                font-size: 15px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 32px;
            position: relative;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
            border-radius: 3px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 12px rgba(230, 57, 70, 0.6);
            display: inline-block;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-links i {
            font-size: 13px;
            color: var(--text-faint);
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin: 36px 0 24px;
        }
        .footer-copy {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
            margin: 0;
        }
        .footer-copy a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-copy a:hover {
            color: var(--accent);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .logo-brand {
                font-size: 15px;
                gap: 8px;
            }
            .logo-dot {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 8px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .device-card {
                padding: 20px 14px;
            }
            .device-card .device-icon {
                font-size: 32px;
            }
            .security-panel .sec-title {
                flex-wrap: wrap;
            }
            .footer-brand {
                font-size: 19px;
            }
        }

/* roulang page: article */
:root {
  --accent: #ef4444;
  --accent-dark: #dc2626;
  --accent-rgb: 239, 68, 68;
  --dark-bg: #0f172a;
  --dark-bg-2: #1e293b;
  --dark-bg-3: #131c2f;
  --body-bg: #f4f6fa;
  --card-bg: #ffffff;
  --text-main: #17202e;
  --text-muted: #64748b;
  --border: #e2e7ef;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.09);
  --shadow-lg: 0 24px 55px rgba(15, 23, 42, 0.13);
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: all 0.28s cubic-bezier(.4, 0, .2, 1);
}
*, *::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); background: var(--body-bg); color: var(--text-main); line-height: 1.7; padding-bottom: 0; }
body.no-scroll { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); text-decoration: none; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; outline: none; }
.container { max-width: 1200px; padding-left: 22px; padding-right: 22px; margin: 0 auto; }
.section-pad { padding: 88px 0; }

/* 头部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(15, 23, 42, 0.06);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.2px;
  color: var(--dark-bg);
  white-space: nowrap;
}
.logo-brand:hover { color: var(--dark-bg); }
.logo-dot {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.35);
  flex-shrink: 0;
}
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link-custom {
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1;
  transition: var(--transition);
  border: 1px solid transparent;
}
.nav-link-custom:hover, .nav-link-custom:focus-visible {
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.07);
  border-color: rgba(var(--accent-rgb), 0.12);
}
.nav-link-custom.active {
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.08);
  border-color: rgba(var(--accent-rgb), 0.16);
  position: relative;
}
.nav-link-custom.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
}
.nav-cta-btn {
  margin-left: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 5px 16px rgba(var(--accent-rgb), 0.3);
  transition: var(--transition);
  border: none;
}
.nav-cta-btn:hover, .nav-cta-btn:focus-visible {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 9px 24px rgba(var(--accent-rgb), 0.4);
}

/* 文章页横幅 */
.article-banner {
  position: relative;
  background: linear-gradient(135deg, rgba(13, 24, 42, 0.95) 0%, rgba(20, 35, 58, 0.88) 45%, rgba(13, 24, 42, 0.82) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 92px 0 72px;
  border-bottom: 4px solid rgba(var(--accent-rgb), 0.85);
}
.article-banner .breadcrumb-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.article-banner .breadcrumb-wrap a { color: rgba(255, 255, 255, 0.72); font-weight: 500; }
.article-banner .breadcrumb-wrap a:hover { color: #fff; }
.article-banner .breadcrumb-wrap .sep { color: rgba(255, 255, 255, 0.35); }
.banner-cat {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(var(--accent-rgb), 0.22);
  border: 1px solid rgba(var(--accent-rgb), 0.45);
  color: #ffcfcf;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3px;
  margin-bottom: 18px;
  text-transform: uppercase;
}
.banner-cat i { font-size: 12px; }
.article-banner h1 {
  color: #fff;
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.32;
  max-width: 800px;
  margin-bottom: 22px;
  letter-spacing: 0.2px;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.32);
}
.banner-meta {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
}
.banner-meta .meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-weight: 500;
}
.banner-meta .meta-chip i { color: var(--accent); }
.banner-meta .source-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}
.source-avatar {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  box-shadow: 0 3px 10px rgba(var(--accent-rgb), 0.4);
}

/* 主区域 */
.article-main { padding: 56px 0 70px; }
.article-panel {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}
.article-panel:hover { box-shadow: var(--shadow); }
.article-head { padding: 36px 40px 20px; }
.article-title { font-size: 26px; font-weight: 800; line-height: 1.42; color: var(--dark-bg); margin: 0 0 18px; }
.article-cover { position: relative; overflow: hidden; }
.article-cover img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform 0.5s ease; }
.article-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(13, 24, 42, 0.12)); }
.article-content-wrap { padding: 34px 40px 10px; }
.article-content { font-size: 16px; line-height: 2; color: #33405a; }
.article-content h2, .article-content h3, .article-content h4 {
  color: var(--dark-bg);
  margin: 1.6em 0 0.7em;
  font-weight: 800;
  line-height: 1.4;
}
.article-content h2 { font-size: 23px; padding-left: 14px; border-left: 4px solid var(--accent); border-radius: 2px; }
.article-content h3 { font-size: 20px; }
.article-content h4 { font-size: 17px; }
.article-content p { margin-bottom: 1.2em; }
.article-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.article-content a:hover { color: var(--accent-dark); }
.article-content img { border-radius: 12px; margin: 1.8em 0; box-shadow: var(--shadow); width: 100%; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: #f8fafc;
  padding: 18px 22px;
  border-radius: 4px 14px 14px 4px;
  margin: 1.8em 0;
  color: #4b5a6d;
  font-style: normal;
  position: relative;
}
.article-content blockquote::before { content: '\201C'; font-size: 42px; line-height: 1; color: var(--accent); opacity: 0.35; position: absolute; top: 12px; left: 16px; }
.article-content ul { padding-left: 24px; margin-bottom: 1.4em; list-style: disc; }
.article-content ol { padding-left: 24px; margin-bottom: 1.4em; list-style: decimal; }
.article-content li { margin-bottom: 0.55em; }
.article-content li::marker { color: var(--accent); }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.8em 0; font-size: 15px; }
.article-content table th { background: #f1f5f9; color: var(--dark-bg); font-weight: 700; padding: 12px 14px; border: 1px solid var(--border); text-align: left; }
.article-content table td { padding: 10px 14px; border: 1px solid var(--border); color: #3d4a5d; }
.article-content table tr:nth-child(even) td { background: #fafbfd; }
.article-content code { background: rgba(var(--accent-rgb), 0.08); padding: 3px 8px; border-radius: 5px; font-size: 14px; color: #d63a1f; }
.article-content pre { background: var(--dark-bg); color: #e2e8f0; padding: 18px; border-radius: 12px; overflow-x: auto; margin: 1.6em 0; font-size: 14px; line-height: 1.7; }
.article-content hr { border: none; height: 1px; background: var(--border); margin: 2.2em 0; }
.article-tags {
  padding: 16px 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  background: #fafbfd;
}
.article-tags .tag-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}
.article-tags .tag-item:hover { border-color: var(--accent); color: var(--accent); background: rgba(var(--accent-rgb), 0.06); }
.article-pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 20px 40px 28px;
  flex-wrap: wrap;
}
.pager-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}
.pager-link:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.pager-link.pager-home { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; border: none; box-shadow: 0 5px 15px rgba(var(--accent-rgb), 0.3); }
.pager-link.pager-home:hover { color: #fff; box-shadow: 0 8px 22px rgba(var(--accent-rgb), 0.45); }

/* 内容未找到 */
.not-found-panel { padding: 80px 40px; text-align: center; }
.not-found-icon { width: 80px; height: 80px; margin: 0 auto 22px; border-radius: 24px; background: rgba(var(--accent-rgb), 0.1); display: flex; align-items: center; justify-content: center; font-size: 34px; color: var(--accent); }
.not-found-panel h3 { font-size: 22px; font-weight: 800; margin-bottom: 12px; }
.not-found-panel p { color: var(--text-muted); margin-bottom: 26px; max-width: 420px; margin-left: auto; margin-right: auto; }
.btn-back-home { display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; font-weight: 700; font-size: 15px; box-shadow: 0 6px 18px rgba(var(--accent-rgb), 0.3); transition: var(--transition); }
.btn-back-home:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(var(--accent-rgb), 0.42); }

/* 侧边栏 */
.article-sidebar { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 22px; }
.side-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}
.side-card:hover { box-shadow: var(--shadow); }
.side-card-img { position: relative; overflow: hidden; }
.side-card-img img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform 0.5s ease; }
.side-card:hover .side-card-img img { transform: scale(1.05); }
.side-card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(13, 24, 42, 0.4)); }
.side-card-body { padding: 20px 22px 24px; }
.side-card-body h4 { font-size: 17px; font-weight: 800; color: var(--dark-bg); margin-bottom: 8px; }
.side-card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.btn-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 11px 20px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff !important;
  font-weight: 700;
  font-size: 14px;
  border: none;
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.25);
  transition: var(--transition);
}
.btn-block:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.4); }
.side-card-title {
  padding: 18px 22px 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--dark-bg);
  display: flex;
  align-items: center;
  gap: 9px;
}
.side-card-title .tit-icon { width: 34px; height: 34px; border-radius: 10px; background: rgba(var(--accent-rgb), 0.1); display: inline-flex; align-items: center; justify-content: center; color: var(--accent); font-size: 15px; }
.side-nav-list { padding: 8px 18px 18px; }
.side-nav-list .side-nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  margin-bottom: 4px;
}
.side-nav-list .side-nav-item i { color: var(--text-muted); font-size: 15px; transition: var(--transition); width: 20px; text-align: center; }
.side-nav-list .side-nav-item:hover { background: rgba(var(--accent-rgb), 0.06); border-color: rgba(var(--accent-rgb), 0.13); color: var(--accent); }
.side-nav-list .side-nav-item:hover i { color: var(--accent); }
.side-guide-list { padding: 6px 22px 22px; }
.guide-step { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed var(--border); }
.guide-step:last-child { border-bottom: none; }
.guide-num { flex-shrink: 0; width: 30px; height: 30px; border-radius: 9px; background: var(--dark-bg); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; }
.guide-step:nth-child(2) .guide-num { background: var(--accent); }
.guide-step-content { flex: 1; }
.guide-step-content h6 { font-size: 14px; font-weight: 700; color: var(--dark-bg); margin-bottom: 4px; }
.guide-step-content p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin: 0; }

/* 相关资讯 */
.related-section { background: var(--dark-bg); padding: 86px 0; position: relative; overflow: hidden; }
.related-section::before { content: ''; position: absolute; top: -60px; right: -60px; width: 260px; height: 260px; border-radius: 50%; background: rgba(var(--accent-rgb), 0.09); filter: blur(60px); }
.related-section::after { content: ''; position: absolute; bottom: -40px; left: 10%; width: 180px; height: 180px; border-radius: 50%; background: rgba(var(--accent-rgb), 0.06); filter: blur(50px); }
.related-section .section-title-bar { position: relative; z-index: 1; }
.section-title-bar { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.section-title-bar .bar-line { width: 4px; height: 28px; border-radius: 99px; background: linear-gradient(180deg, var(--accent), var(--accent-dark)); }
.section-title-bar h2 { font-size: 28px; font-weight: 900; color: #fff; margin: 0; letter-spacing: 0.5px; }
.section-sub { color: rgba(255, 255, 255, 0.55); font-size: 15px; margin-bottom: 42px; position: relative; z-index: 1; }
.related-grid { position: relative; z-index: 1; }
.related-card {
  background: var(--dark-bg-3);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); border-color: rgba(var(--accent-rgb), 0.45); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3); }
.related-card-img { position: relative; overflow: hidden; }
.related-card-img img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-card-img img { transform: scale(1.06); }
.related-card-img .img-badge { position: absolute; top: 14px; left: 14px; z-index: 2; padding: 5px 13px; background: rgba(13, 24, 42, 0.72); backdrop-filter: blur(6px); color: #fff; font-size: 12px; font-weight: 700; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.18); }
.related-card-body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.related-card-body h3 { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.5; margin-bottom: 10px; flex: 1; }
.related-card-body p { font-size: 13.5px; color: rgba(255, 255, 255, 0.5); line-height: 1.7; margin-bottom: 16px; }
.related-card-body .card-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: rgba(255, 255, 255, 0.4); }
.related-card-body .card-meta i { color: var(--accent); }

/* FAQ */
.faq-section { padding: 86px 0; background: var(--body-bg); position: relative; }
.faq-section .section-title-light h2 { color: var(--dark-bg); }
.faq-section .section-sub-light { color: var(--text-muted); margin-bottom: 42px; }
.faq-accordion { max-width: 880px; margin: 0 auto; }
.faq-accordion .accordion-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.faq-accordion .accordion-item:hover { border-color: rgba(var(--accent-rgb), 0.3); box-shadow: var(--shadow); }
.faq-accordion .accordion-button {
  background: var(--card-bg);
  color: var(--text-main);
  font-weight: 700;
  font-size: 15.5px;
  padding: 20px 24px;
  line-height: 1.5;
  border: none;
  box-shadow: none;
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-accordion .accordion-button::after { display: none; }
.faq-accordion .accordion-button::before {
  content: '\f137';
  font-family: 'bootstrap-icons';
  font-size: 18px;
  color: var(--accent);
  order: 2;
  margin-left: auto;
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-accordion .accordion-button.collapsed::before { content: '\f138'; transform: rotate(0); }
.faq-accordion .accordion-button:focus { box-shadow: none; }
.faq-accordion .accordion-button:not(.collapsed) { background: var(--card-bg); color: var(--accent); }
.faq-accordion .accordion-body { padding: 4px 24px 22px; color: var(--text-muted); font-size: 14.5px; line-height: 1.8; }
.faq-accordion .accordion-collapse { border-top: 1px solid var(--border); }

/* CTA 区块 */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, rgba(13, 24, 42, 0.95), rgba(30, 41, 59, 0.88)), url('/assets/images/backpic/back-1.png') center/cover fixed;
  padding: 86px 0;
  text-align: center;
  overflow: hidden;
}
.cta-section::before { content: ''; position: absolute; top: -70px; left: 50%; transform: translateX(-50%); width: 400px; height: 200px; background: radial-gradient(ellipse, rgba(var(--accent-rgb), 0.18), transparent 70%); }
.cta-section h2 { color: #fff; font-size: 30px; font-weight: 900; margin-bottom: 16px; letter-spacing: 0.5px; }
.cta-section p { color: rgba(255, 255, 255, 0.6); font-size: 16px; margin-bottom: 30px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-group { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.btn-cta-main { display: inline-flex; align-items: center; gap: 9px; padding: 15px 34px; border-radius: 12px; background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; font-size: 15px; font-weight: 800; box-shadow: 0 8px 22px rgba(var(--accent-rgb), 0.35); transition: var(--transition); border: none; }
.btn-cta-main:hover { color: #fff; transform: translateY(-3px); box-shadow: 0 14px 34px rgba(var(--accent-rgb), 0.5); }
.btn-cta-ghost { display: inline-flex; align-items: center; gap: 9px; padding: 15px 30px; border-radius: 12px; background: transparent; color: rgba(255, 255, 255, 0.85); font-size: 15px; font-weight: 600; border: 1px solid rgba(255, 255, 255, 0.25); transition: var(--transition); }
.btn-cta-ghost:hover { color: #fff; border-color: rgba(var(--accent-rgb), 0.7); background: rgba(var(--accent-rgb), 0.1); transform: translateY(-3px); }

/* 页脚 */
.site-footer {
  background: #0b1422;
  color: rgba(255, 255, 255, 0.5);
  padding: 68px 0 30px;
  border-top: 4px solid rgba(var(--accent-rgb), 0.9);
}
.site-footer .footer-brand { font-size: 19px; font-weight: 900; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.site-footer h6 { font-size: 14.5px; letter-spacing: 0.3px; }
.footer-links { padding: 0; margin: 0; }
.footer-links li { margin-bottom: 9px; font-size: 14px; }
.footer-links a { color: rgba(255, 255, 255, 0.5); transition: var(--transition); display: inline-flex; align-items: center; gap: 7px; }
.footer-links a:hover { color: var(--accent); transform: translateX(3px); }
.footer-divider { border-top: 1px solid rgba(255, 255, 255, 0.08); margin: 32px 0 22px; }
.footer-copy { font-size: 13px; color: rgba(255, 255, 255, 0.32); text-align: center; margin: 0; letter-spacing: 0.3px; }

/* 移动端底部 Tab */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1080;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  padding: 8px 14px calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 -6px 24px rgba(15, 23, 42, 0.08);
}
.mobile-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 4px;
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  transition: var(--transition);
}
.mobile-tab i { font-size: 19px; transition: var(--transition); }
.mobile-tab:hover, .mobile-tab:focus-visible { color: var(--accent); background: rgba(var(--accent-rgb), 0.07); }
.mobile-tab.active { color: var(--accent); }
.mobile-tab.active i { transform: translateY(-2px); }

/* 统计面板 */
.data-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; padding: 26px 28px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-lg); position: relative; z-index: 1; }
.data-strip .data-item { text-align: center; }
.data-strip .data-item .num { font-size: 26px; font-weight: 900; color: #fff; line-height: 1.2; letter-spacing: 0.5px; }
.data-strip .data-item .num em { font-style: normal; color: var(--accent); }
.data-strip .data-item .label { font-size: 13px; color: rgba(255, 255, 255, 0.5); margin-top: 6px; font-weight: 500; }

/* 响应式 */
@media (max-width: 1024px) {
  .article-main .row { row-gap: 30px; }
  .article-sidebar { position: static; }
  .data-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .section-pad { padding: 60px 0; }
  .related-section, .faq-section, .cta-section { padding: 60px 0; }
  .main-nav { display: none; }
  .site-header .container { height: 62px; }
  .logo-brand { font-size: 16px; gap: 8px; }
  .logo-dot { width: 32px; height: 32px; font-size: 14px; border-radius: 9px; }
  .mobile-bottom-nav { display: flex; }
  body { padding-bottom: 64px; }
  .article-banner { padding: 60px 0 50px; }
  .article-main { padding: 34px 0 44px; }
  .article-head, .article-content-wrap { padding-left: 24px; padding-right: 24px; }
  .article-tags, .article-pager { padding-left: 24px; padding-right: 24px; }
  .article-title { font-size: 21px; }
  .article-content { font-size: 15px; line-height: 1.9; }
  .banner-meta { gap: 12px; }
  .banner-meta .meta-chip { padding: 5px 10px; font-size: 12.5px; }
  .section-title-bar h2 { font-size: 22px; }
  .data-strip { grid-template-columns: repeat(2, 1fr); gap: 14px; padding: 20px; }
  .data-strip .data-item .num { font-size: 20px; }
  .cta-section h2 { font-size: 24px; }
  .faq-accordion .accordion-button { font-size: 14px; padding: 17px 18px; }
  .faq-accordion .accordion-body { padding: 2px 18px 18px; font-size: 13.5px; }
  .btn-cta-main, .btn-cta-ghost { width: 100%; justify-content: center; }
  .cta-group { flex-direction: column; }
}
@media (max-width: 520px) {
  .site-header .container { padding-left: 16px; padding-right: 16px; }
  .article-banner h1 { font-size: 22px; }
  .article-head, .article-content-wrap { padding-left: 18px; padding-right: 18px; }
  .article-tags, .article-pager { padding-left: 18px; padding-right: 18px; }
  .article-tags { gap: 7px; }
  .article-tags .tag-item { padding: 5px 10px; font-size: 12px; }
  .pager-link { font-size: 13px; padding: 9px 14px; }
  .related-card-body { padding: 18px; }
  .related-card-body h3 { font-size: 15.5px; }
  .data-strip { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .data-strip .data-item .num { font-size: 17px; }
  .section-title-bar h2 { font-size: 20px; }
  .section-sub { font-size: 14px; margin-bottom: 28px; }
  .banner-meta { gap: 8px; }
  .banner-meta .meta-chip { font-size: 11.5px; padding: 4px 8px; }
  .banner-meta .source-chip { font-size: 12.5px; }
  .source-avatar { width: 26px; height: 26px; font-size: 11px; }
}

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-rgb: 230,57,70;
            --primary-dark: #c1121f;
            --accent: #ff8c00;
            --accent-rgb: 255,140,0;
            --bg: #0b0f19;
            --bg-light: #111827;
            --bg-card: #151c2b;
            --bg-card-2: #1a2332;
            --text: #e8ecf1;
            --text-muted: #8892a6;
            --border: rgba(255,255,255,0.08);
            --border-light: rgba(255,255,255,0.12);
            --radius: 14px;
            --radius-lg: 22px;
            --radius-sm: 9px;
            --shadow: 0 10px 32px rgba(0,0,0,0.35);
            --shadow-sm: 0 4px 14px rgba(0,0,0,0.22);
            --transition: all 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1220px;
            padding-left: 22px;
            padding-right: 22px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(11, 15, 25, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo-brand {
            display: inline-flex;
            align-items: center;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.3px;
            gap: 10px;
            white-space: nowrap;
        }
        .logo-brand:hover {
            color: #fff;
        }
        .logo-dot {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 11px;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 7px;
        }
        .nav-link-custom {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link-custom:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link-custom.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link-custom.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .nav-cta-btn {
            margin-left: 10px;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: 10px;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.28);
            transition: var(--transition);
            border: none;
        }
        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.38);
            color: #fff;
        }
        .page-hero {
            position: relative;
            padding: 168px 0 90px;
            background: linear-gradient(135deg, rgba(11, 15, 25, 0.82) 0%, rgba(11, 15, 25, 0.45) 60%, rgba(230, 57, 70, 0.15) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, var(--bg));
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 22px;
        }
        .hero-badge .pulse-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #49d47a;
            animation: pulse 1.8s infinite;
        }
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(73, 212, 122, 0.6);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(73, 212, 122, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(73, 212, 122, 0);
            }
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .page-hero h1 .highlight {
            color: var(--accent);
        }
        .page-hero p.lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.68);
            max-width: 620px;
            margin-bottom: 32px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 34px;
            margin-top: 42px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .hero-stat .lbl {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 5px;
        }
        .hero-stat .num span {
            color: var(--accent);
        }
        .info-bar {
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .info-bar .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
        }
        .info-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .info-tag i {
            color: var(--accent);
        }
        .info-tag .live-badge {
            display: inline-block;
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary);
            font-size: 11px;
            font-weight: 700;
            padding: 3px 9px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .news-filter {
            padding: 38px 0 8px;
        }
        .filter-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .filter-list .filter-btn {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            background: var(--bg-card);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-list .filter-btn:hover {
            color: #fff;
            border-color: rgba(255, 255, 255, 0.2);
            background: var(--bg-card-2);
        }
        .filter-list .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.28);
        }
        .section-block {
            padding: 60px 0;
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 38px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin: 0;
            line-height: 1.2;
        }
        .section-head h2 .line {
            display: inline-block;
            width: 42px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            vertical-align: middle;
            margin-right: 12px;
        }
        .section-head .head-note {
            font-size: 14px;
            color: var(--text-muted);
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-5px);
            border-color: rgba(230, 57, 70, 0.35);
            box-shadow: var(--shadow);
        }
        .news-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .news-card:hover .card-img img {
            transform: scale(1.04);
        }
        .news-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.5));
        }
        .news-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            background: rgba(230, 57, 70, 0.9);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .news-card .card-body {
            padding: 20px 22px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 13px;
        }
        .news-card .card-meta i {
            margin-right: 4px;
            font-size: 13px;
        }
        .news-card .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .news-card .read-more:hover {
            color: var(--accent);
        }
        .stats-panel {
            background: var(--bg-light);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 58px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-panel::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.12), transparent 70%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-cell {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-cell:hover {
            border-color: rgba(230, 57, 70, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .stat-cell .stat-icon {
            font-size: 26px;
            color: var(--accent);
            margin-bottom: 10px;
            display: block;
        }
        .stat-cell .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-cell .stat-num em {
            font-style: normal;
            font-size: 20px;
            color: var(--primary);
            margin-left: 2px;
        }
        .stat-cell .stat-lbl {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .topics-section {
            padding: 60px 0 50px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 230px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .topic-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: rgba(255, 255, 255, 0.18);
        }
        .topic-card .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.8) 100%);
            z-index: 1;
        }
        .topic-card .topic-content {
            position: relative;
            z-index: 2;
            padding: 26px;
            width: 100%;
        }
        .topic-card .topic-badge {
            display: inline-block;
            background: rgba(230, 57, 70, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .topic-card .topic-title {
            font-size: 21px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 300px;
        }
        .faq-section {
            background: var(--bg-light);
            padding: 60px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 26px;
            margin-bottom: 14px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.15);
            background: var(--bg-card-2);
        }
        .faq-item .faq-q {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
        }
        .faq-item .faq-q .faq-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary);
            font-size: 13px;
            border-radius: 8px;
            font-weight: 700;
        }
        .faq-item .faq-a {
            margin-top: 14px;
            padding-left: 40px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item .faq-arrow {
            margin-left: auto;
            color: var(--text-muted);
            font-size: 18px;
            transition: var(--transition);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .cta-section {
            padding: 70px 0;
            position: relative;
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(255, 140, 0, 0.08)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .cta-inner {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 30px;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary-gradient {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 13px 34px;
            border-radius: 12px;
            border: none;
            box-shadow: 0 6px 22px rgba(230, 57, 70, 0.32);
            transition: var(--transition);
        }
        .btn-primary-gradient:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(230, 57, 70, 0.42);
            color: #fff;
        }
        .btn-outline-light-2 {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            padding: 13px 34px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .btn-outline-light-2:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.55);
            color: #fff;
        }
        .site-footer {
            background: #0a0e16;
            padding: 60px 0 82px;
            border-top: 1px solid var(--border);
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 9px;
        }
        .footer-brand::before {
            content: "";
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: inline-block;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .footer-links li a:hover {
            color: var(--primary);
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin: 30px 0 22px;
        }
        .footer-copy {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
            margin: 0;
        }
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(13, 17, 28, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            padding: 8px 0 10px;
            justify-content: space-around;
        }
        .mobile-tab-bar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            font-size: 10px;
            color: var(--text-muted);
            padding: 5px 18px;
            border-radius: 10px;
            transition: var(--transition);
        }
        .mobile-tab-bar .tab-item i {
            font-size: 20px;
        }
        .mobile-tab-bar .tab-item.active {
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-tab-bar .tab-item:hover {
            color: #fff;
        }
        .empty-state {
            padding: 50px 0;
            text-align: center;
            color: var(--text-muted);
        }
        .pagination-nav {
            display: flex;
            justify-content: center;
            margin-top: 42px;
        }
        .pagination-nav .page-item .page-link {
            background: var(--bg-card);
            border-color: var(--border);
            color: var(--text);
            margin: 0 4px;
            border-radius: 8px;
            font-size: 14px;
            min-width: 40px;
            text-align: center;
            transition: var(--transition);
        }
        .pagination-nav .page-item.active .page-link {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .pagination-nav .page-item .page-link:hover {
            background: var(--bg-card-2);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .btn-back-top {
            position: fixed;
            bottom: 90px;
            right: 24px;
            z-index: 1050;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: var(--shadow-sm);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        .btn-back-top.show {
            opacity: 1;
            visibility: visible;
        }
        .btn-back-top:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 36px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-cell .stat-num {
                font-size: 28px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                display: none;
            }
            .mobile-tab-bar {
                display: flex;
            }
            .page-hero {
                padding: 110px 0 60px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero p.lead {
                font-size: 15px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
            .section-block {
                padding: 45px 0;
            }
            .section-head {
                margin-bottom: 26px;
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .topic-card {
                min-height: 190px;
            }
            .topic-card .topic-title {
                font-size: 18px;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .site-footer {
                padding: 40px 0 90px;
            }
            .footer-brand {
                font-size: 18px;
            }
            .btn-back-top {
                bottom: 90px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 15px;
            }
            .info-bar {
                padding: 10px 0;
            }
            .info-tag {
                font-size: 12px;
                gap: 5px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 15px;
                padding-right: 15px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero p.lead {
                font-size: 14px;
            }
            .hero-stats {
                gap: 16px;
                flex-wrap: wrap;
            }
            .hero-stat .num {
                font-size: 22px;
            }
            .filter-list .filter-btn {
                padding: 7px 14px;
                font-size: 13px;
            }
            .news-card .card-title {
                font-size: 15px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-cell {
                padding: 16px 10px;
            }
            .stat-cell .stat-num {
                font-size: 24px;
            }
            .topic-card {
                min-height: 170px;
            }
            .topic-card .topic-content {
                padding: 18px;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item .faq-q {
                font-size: 14px;
            }
            .faq-item .faq-a {
                padding-left: 20px;
                font-size: 13px;
            }
            .cta-btns .btn-primary-gradient,
            .cta-btns .btn-outline-light-2 {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #e02e24;
            --primary-dark: #b91f18;
            --primary-light: #fef0ef;
            --dark: #0a1220;
            --dark-2: #101c2e;
            --dark-3: #182637;
            --surface: #ffffff;
            --bg-soft: #f4f6fa;
            --text-1: #1b2535;
            --text-2: #556075;
            --text-3: #8b94a7;
            --border: #e5e9f0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(10, 18, 32, .05);
            --shadow-md: 0 8px 28px rgba(10, 18, 32, .08);
            --shadow-lg: 0 18px 48px rgba(10, 18, 32, .14);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Roboto Mono", monospace;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-1);
            background: var(--bg-soft);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(224, 46, 36, .45);
            outline-offset: 3px;
        }
        .container {
            max-width: 1180px;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding: 84px 0;
        }
        .section-head {
            margin-bottom: 44px;
        }
        .section-head .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .section-head p {
            color: var(--text-2);
            max-width: 640px;
            margin: 0 auto;
            font-size: 1.05rem;
        }

        /* Buttons */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 10px;
            border: none;
            transition: var(--transition);
            letter-spacing: .3px;
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(224, 46, 36, .25);
        }
        .btn-ghost-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .4);
            transition: var(--transition);
        }
        .btn-ghost-custom:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, .08);
            color: #fff;
            transform: translateY(-2px);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(10, 18, 32, .96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            padding: 14px 0;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.32rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-dot {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(224, 46, 36, .4);
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link-custom {
            position: relative;
            color: rgba(255, 255, 255, .75);
            font-size: .92rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-link-custom:hover {
            color: #fff;
            background: rgba(255, 255, 255, .06);
        }
        .nav-link-custom.active {
            color: #fff;
            font-weight: 700;
        }
        .nav-link-custom.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: .9rem;
            padding: 9px 20px;
            border-radius: 8px;
            margin-left: 8px;
            transition: var(--transition);
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(224, 46, 36, .32);
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(8, 14, 26, .93), rgba(16, 28, 46, .88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 96px 0 86px;
            border-bottom: 3px solid var(--primary);
        }
        .page-hero .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .5);
            font-size: .85rem;
            font-weight: 500;
            margin-bottom: 18px;
            letter-spacing: .3px;
        }
        .page-hero .breadcrumb-line a {
            color: rgba(255, 255, 255, .7);
        }
        .page-hero .breadcrumb-line a:hover {
            color: #fff;
        }
        .page-hero .breadcrumb-line i {
            font-size: 12px;
            color: var(--primary);
        }
        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.15;
            letter-spacing: 1px;
        }
        .page-hero h1 .tag-line {
            color: var(--primary);
        }
        .page-hero .page-desc {
            color: rgba(255, 255, 255, .7);
            font-size: 1.08rem;
            max-width: 620px;
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .page-hero .hero-meta {
            display: flex;
            gap: 24px;
            margin-top: 42px;
            flex-wrap: wrap;
        }
        .page-hero .meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .6);
            font-size: .85rem;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            padding: 7px 14px;
            border-radius: 30px;
        }
        .page-hero .meta-item i {
            color: var(--primary);
        }

        /* Overview Cards */
        .overview-section {
            background: var(--bg-soft);
            padding: 82px 0;
        }
        .support-card {
            position: relative;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 34px 26px;
            height: 100%;
            transition: var(--transition);
            overflow: hidden;
            z-index: 1;
        }
        .support-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            transform: scaleY(0);
            transform-origin: top;
            transition: var(--transition);
            z-index: 2;
        }
        .support-card:hover::before {
            transform: scaleY(1);
        }
        .support-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .support-card .card-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .support-card:hover .card-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(224, 46, 36, .3);
        }
        .support-card h3 {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .support-card p {
            color: var(--text-2);
            font-size: .92rem;
            margin-bottom: 16px;
            line-height: 1.65;
        }
        .support-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .88rem;
            font-weight: 600;
            color: var(--primary);
        }
        .support-card .card-link i {
            transition: var(--transition);
        }
        .support-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* Guarantee section */
        .guarantee-section {
            background: var(--dark);
            padding: 88px 0;
            position: relative;
            overflow: hidden;
        }
        .guarantee-section::before {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            background: rgba(224, 46, 36, .08);
            border-radius: 50%;
            top: -120px;
            right: -80px;
        }
        .guarantee-section .guarantee-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 24px 48px rgba(0, 0, 0, .4);
        }
        .guarantee-section .guarantee-img-wrap img {
            width: 100%;
            height: 460px;
            object-fit: cover;
        }
        .guarantee-section .guarantee-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(10, 18, 32, .65));
        }
        .guarantee-section .section-tag-dark {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--primary);
            background: rgba(255, 255, 255, .06);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
        }
        .guarantee-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .guarantee-section .lead-text {
            color: rgba(255, 255, 255, .62);
            margin-bottom: 24px;
        }
        .guarantee-list {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
        }
        .guarantee-list li {
            display: flex;
            gap: 12px;
            color: rgba(255, 255, 255, .82);
            font-size: .96rem;
            margin-bottom: 14px;
            align-items: flex-start;
        }
        .guarantee-list li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 15px;
        }
        .guarantee-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .guarantee-tags .shield-tag {
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 8px;
            padding: 6px 14px;
            font-size: .8rem;
            color: rgba(255, 255, 255, .7);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .guarantee-tags .shield-tag i {
            color: #f5b301;
        }

        /* Process */
        .process-section {
            background: var(--surface);
            padding: 85px 0;
        }
        .process-row {
            display: flex;
            align-items: center;
            gap: 48px;
        }
        .process-row .process-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .process-row .process-media img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }
        .process-steps {
            display: flex;
            flex-direction: column;
            gap: 26px;
            counter-reset: step;
        }
        .step-item {
            display: flex;
            gap: 18px;
            position: relative;
        }
        .step-item::before {
            content: "";
            position: absolute;
            left: 27px;
            top: 56px;
            width: 2px;
            height: calc(100% - 20px);
            background: var(--border);
        }
        .step-item:last-child::before {
            display: none;
        }
        .step-num {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            border: 2px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--primary);
            flex-shrink: 0;
            position: relative;
            z-index: 2;
        }
        .step-item:hover .step-num {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(224, 46, 36, .3);
            transition: var(--transition);
        }
        .step-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 4px;
        }
        .step-body p {
            color: var(--text-2);
            font-size: .9rem;
            margin-bottom: 0;
        }

        /* Stats */
        .stats-section {
            background: linear-gradient(135deg, #0a1220 0%, #14202f 100%);
            padding: 70px 0;
            border-top: 3px solid var(--primary);
            border-bottom: 3px solid var(--primary);
            position: relative;
        }
        .stats-section .stat-item {
            text-align: center;
            padding: 24px 18px;
            position: relative;
        }
        .stats-section .stat-item::after {
            content: "";
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, .1);
        }
        .stats-section .stat-item:last-child::after {
            display: none;
        }
        .stat-value {
            font-family: var(--font-mono);
            font-size: 2.7rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-value .stat-suffix {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .stat-label {
            color: rgba(255, 255, 255, .55);
            font-size: .92rem;
            letter-spacing: 1px;
            font-weight: 500;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-soft);
            padding: 82px 0;
        }
        .faq-container {
            max-width: 830px;
            margin: 0 auto;
        }
        .faq-container .accordion-item {
            border: 1px solid var(--border);
            border-radius: 12px !important;
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--surface);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-container .accordion-item:hover {
            border-color: rgba(224, 46, 36, .3);
            box-shadow: var(--shadow-md);
        }
        .faq-container .accordion-button {
            background: var(--surface);
            color: var(--dark);
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 22px;
            box-shadow: none;
            border: none;
        }
        .faq-container .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .faq-container .accordion-button::after {
            background-image: none;
            content: "\F64D";
            font-family: "bootstrap-icons";
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            transition: var(--transition);
            color: var(--primary);
        }
        .faq-container .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-container .accordion-body {
            color: var(--text-2);
            font-size: .94rem;
            line-height: 1.75;
            padding: 0 22px 20px;
        }

        /* CTA */
        .cta-section {
            background: var(--dark);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: .12;
        }
        .cta-box {
            position: relative;
            z-index: 2;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
        }
        .cta-box h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-box p {
            color: rgba(255, 255, 255, .65);
            margin-bottom: 28px;
            font-size: 1rem;
        }
        .cta-box .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #07101c;
            padding: 58px 0 30px;
            color: rgba(255, 255, 255, .55);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer h6 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 14px;
            font-size: .95rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .55);
            font-size: .9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin: 34px 0 20px;
        }
        .footer-copy {
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .32);
            margin-bottom: 0;
        }

        /* Mobile bottom tab */
        .mobile-bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1090;
            background: rgba(10, 18, 32, .97);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, .09);
            display: none;
            grid-template-columns: repeat(4, 1fr);
            padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
        }
        .mb-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            color: rgba(255, 255, 255, .55);
            font-size: .72rem;
            font-weight: 500;
            padding: 6px 4px;
            border-radius: 10px;
            transition: var(--transition);
        }
        .mb-item i {
            font-size: 1.3rem;
        }
        .mb-item.active,
        .mb-item:hover {
            color: var(--primary);
            background: rgba(224, 46, 36, .1);
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .main-nav {
                display: none;
            }
            .mobile-bottom-nav {
                display: grid;
            }
            .overview-section {
                padding: 64px 0 70px;
            }
            .section-pad {
                padding: 64px 0;
            }
            .process-row {
                flex-direction: column;
                gap: 36px;
            }
            .process-row .process-media img {
                height: 300px;
            }
            .guarantee-section .guarantee-img-wrap img {
                height: 320px;
            }
            .page-hero {
                padding: 74px 0 64px;
            }
        }
        @media (max-width: 767.98px) {
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero .page-desc {
                font-size: 1rem;
            }
            .section-head h2 {
                font-size: 1.55rem;
            }
            .stats-section .stat-value {
                font-size: 2rem;
            }
            .stats-section .stat-item::after {
                display: none;
            }
            .cta-box {
                padding: 32px 24px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer-brand {
                font-size: 1.1rem;
            }
            .guarantee-section {
                padding: 64px 0;
            }
        }
        @media (max-width: 575.98px) {
            .support-card {
                padding: 24px 20px;
            }
            .step-num {
                width: 48px;
                height: 48px;
                font-size: .95rem;
            }
            .step-item::before {
                left: 23px;
                top: 50px;
            }
            .hero-actions {
                width: 100%;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-ghost-custom {
                flex: 1;
                justify-content: center;
            }
        }