/* roulang page: index */
:root {
            --bg-primary: #0A0F1E;
            --bg-secondary: #0F172A;
            --bg-card: rgba(15, 23, 42, 0.60);
            --bg-card-hover: rgba(30, 41, 59, 0.55);
            --border-card: rgba(59, 130, 246, 0.28);
            --border-card-hover: rgba(59, 130, 246, 0.55);
            --primary: #3B82F6;
            --primary-light: #60A5FA;
            --accent: #22D3EE;
            --danger: #EF4444;
            --gold: #F59E0B;
            --text-primary: #E2E8F0;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.45);
            --shadow-glow-hover: 0 0 28px rgba(59, 130, 246, 0.75);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
            background-image: radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(34, 211, 238, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(15, 23, 42, 0.9) 0%, transparent 70%);
            background-attachment: fixed;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.18);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.85), rgba(34, 211, 238, 0.65));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: #fff;
            letter-spacing: -0.5px;
            box-shadow: 0 0 14px rgba(59, 130, 246, 0.5);
        }

        .logo-text {
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.1);
        }

        .nav-link.active {
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.14);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            padding: 10px 18px;
            border-radius: 10px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.4);
            color: var(--text-primary);
        }
        .mobile-toggle:hover {
            background: rgba(59, 130, 246, 0.2);
            border-color: rgba(59, 130, 246, 0.7);
        }
        .mobile-toggle:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .nav-cta {
                display: none;
            }
        }

        /* Base sections */
        .section {
            padding: 72px 0;
            position: relative;
        }
        .section-alt {
            background: rgba(15, 23, 42, 0.45);
            border-top: 1px solid rgba(59, 130, 246, 0.12);
            border-bottom: 1px solid rgba(59, 130, 246, 0.12);
        }
        .section-heading {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .glass-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            box-shadow: 0 10px 36px rgba(0, 0, 0, 0.4), 0 0 24px rgba(59, 130, 246, 0.25);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-glow);
            border: 1px solid rgba(59, 130, 246, 0.6);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: transparent;
            color: #93C5FD;
            border: 1px solid rgba(59, 130, 246, 0.6);
        }
        .btn-secondary:hover {
            background: rgba(59, 130, 246, 0.12);
            border-color: rgba(59, 130, 246, 0.9);
        }
        .btn-cta-lg {
            padding: 14px 28px;
            font-size: 16px;
        }
        .mono {
            font-family: var(--font-mono);
            font-weight: 600;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-danger {
            color: var(--danger);
        }
        .text-gold {
            color: var(--gold);
        }
        .section-grid {
            display: grid;
            gap: 24px;
        }
        .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(59, 130, 246, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 14px;
        }

        /* Hero specific */
        .hero-section {
            padding: 80px 0 72px;
            background: linear-gradient(180deg, rgba(10,15,30,0.7) 0%, rgba(10,15,30,0.1) 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-bg-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/0fba71d723a01b1d.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }
        .hero-h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-mini-stats {
            display: flex;
            gap: 28px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        .hero-mini-stat {
            text-align: left;
        }
        .hero-mini-stat .mono {
            font-size: 20px;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-mini-stat span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Self assessment card */
        .self-assessment-card {
            background: var(--bg-card);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-card);
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 32px rgba(59,130,246,0.2);
        }
        .self-assessment-title {
            font-weight: 700;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .self-assessment-options {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-bottom: 12px;
        }
        .self-assessment-option {
            padding: 10px 14px;
            border-radius: 10px;
            border: 1px solid rgba(59,130,246,0.3);
            background: rgba(15,23,42,0.5);
            color: var(--text-primary);
            font-size: 14px;
            cursor: pointer;
            transition: all 0.25s ease;
            text-align: left;
        }
        .self-assessment-option:hover {
            border-color: rgba(59,130,246,0.7);
            background: rgba(59,130,246,0.12);
        }
        .self-assessment-preview {
            border-top: 1px dashed rgba(59,130,246,0.4);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .self-assessment-preview .mono {
            color: var(--accent);
        }

        /* 痛点列表 */
        .pain-list {
            display: grid;
            gap: 16px;
        }
        .pain-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 16px;
            border-radius: 12px;
            background: rgba(15,23,42,0.5);
            border-left: 3px solid var(--danger);
        }
        .pain-number {
            font-family: var(--font-mono);
            color: var(--danger);
            font-weight: 700;
            min-width: 24px;
        }

        /* CTA form */
        .cta-form-section {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid rgba(59, 130, 246, 0.25);
            border-radius: 20px;
            padding: 32px;
            max-width: 700px;
            margin: 0 auto;
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid rgba(59,130,246,0.3);
            background: rgba(10,15,30,0.8);
            color: var(--text-primary);
            transition: all 0.25s ease;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(59,130,246,0.3);
        }

        /* Footer */
        .site-footer {
            border-top: 1px solid rgba(59,130,246,0.2);
            padding: 56px 0 24px;
            background: rgba(10,15,30,0.9);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .footer-col-title {
            font-weight: 700;
            font-size: 14px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 13px;
            margin-bottom: 8px;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(59,130,246,0.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-heading {
                font-size: 24px;
            }
            .hero-h1 {
                font-size: 30px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .hero-h1 {
                font-size: 26px;
            }
            .btn-cta-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #0F172A;
  --bg-card: rgba(15, 23, 42, 0.60);
  --bg-card-hover: rgba(30, 41, 59, 0.55);
  --border-card: rgba(59, 130, 246, 0.28);
  --border-card-hover: rgba(59, 130, 246, 0.55);
  --primary: #3B82F6;
  --primary-light: #60A5FA;
  --accent: #22D3EE;
  --danger: #EF4444;
  --gold: #F59E0B;
  --text-primary: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.45);
  --shadow-glow-hover: 0 0 28px rgba(59, 130, 246, 0.75);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Courier New', monospace;
  --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --header-height: 68px;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 15px;
  overflow-x: hidden;
  background-image: radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 60%, rgba(34, 211, 238, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(15, 23, 42, 0.9) 0%, transparent 70%);
  background-attachment: fixed;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(59, 130, 246, 0.18);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 16px;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.85), rgba(34, 211, 238, 0.65));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 13px;
  color: #fff;
  letter-spacing: -0.5px;
  box-shadow: 0 0 14px rgba(59, 130, 246, 0.5);
}
.logo-text {
  font-weight: 800;
  font-size: 18px;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
}
.nav-links-desktop {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
}
.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.25s ease;
  white-space: nowrap;
  position: relative;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(59, 130, 246, 0.1);
}
.nav-link.active {
  color: var(--primary-light);
  background: rgba(59, 130, 246, 0.14);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
}
.nav-cta {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 10px;
  box-shadow: var(--shadow-glow);
  transition: all 0.3s ease;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-cta:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-glow-hover);
  transform: translateY(-1px);
}
.nav-cta:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}
.mobile-toggle {
  display: none;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.35);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--text-primary);
  flex-shrink: 0;
}
.mobile-toggle:hover {
  background: rgba(59, 130, 246, 0.22);
}

/* Breadcrumb */
.breadcrumb-nav {
  padding: 20px 0 0;
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}
.breadcrumb-list li + li::before {
  content: '/';
  margin-right: 8px;
  color: var(--text-muted);
}
.breadcrumb-list a {
  color: var(--text-secondary);
  transition: color 0.25s ease;
}
.breadcrumb-list a:hover {
  color: var(--primary-light);
}
.breadcrumb-list li:last-child {
  color: var(--text-primary);
  font-weight: 500;
}

/* Category Header */
.category-header {
  padding: 44px 0 28px;
  border-bottom: 1px solid rgba(59, 130, 246, 0.15);
}
.category-header-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  align-items: end;
}
.category-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  line-height: 1.3;
  margin: 0 0 10px;
}
.category-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.8;
  margin: 0;
}
.header-metrics {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.header-metric-item {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  min-width: 90px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.header-metric-value {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 22px;
  color: var(--accent);
  display: block;
  line-height: 1.2;
  letter-spacing: -0.5px;
}
.header-metric-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
  display: block;
}

/* Section Base */
.section-block {
  padding: 52px 0;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary-light);
  margin-bottom: 10px;
}
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  margin: 0 0 14px;
  line-height: 1.45;
}
.section-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.85;
  margin: 0;
}

/* Score Stream */
.score-stream-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.score-stream-card:hover {
  border-color: var(--border-card-hover);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.42);
}
.score-stream-header {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 1.6fr 1fr 1.6fr 1.2fr;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(59, 130, 246, 0.18);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  background: rgba(15, 23, 42, 0.35);
}
.score-row {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 1.6fr 1fr 1.6fr 1.2fr;
  padding: 16px 20px;
  align-items: center;
  border-bottom: 1px solid rgba(59, 130, 246, 0.1);
  transition: background-color 0.25s ease;
}
.score-row:last-child {
  border-bottom: none;
}
.score-row:hover {
  background-color: rgba(59, 130, 246, 0.06);
}
.score-league {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.league-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.league-dot.live {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.7);
  animation: pulse-dot 1.2s ease-in-out infinite;
}
.league-dot.finished {
  background: var(--text-muted);
}
.league-dot.upcoming {
  background: var(--gold);
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}
.score-status {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}
.score-status.live {
  color: var(--danger);
}
.score-status.finished {
  color: var(--text-muted);
}
.score-status.upcoming {
  color: var(--gold);
}
.team-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.team-name.right {
  text-align: right;
}
.team-name.left {
  text-align: right;
}
.score-center {
  text-align: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 20px;
  color: var(--accent);
  letter-spacing: 1px;
}
.score-center.upcoming {
  color: var(--text-muted);
  font-size: 16px;
}
.event-tags {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.event-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary-light);
  letter-spacing: 0.3px;
}
.event-tag.red {
  background: rgba(239, 68, 68, 0.15);
  color: #F87171;
}
.event-tag.penalty {
  background: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
}
.event-tag.own-goal {
  background: rgba(239, 68, 68, 0.18);
  color: #FCA5A5;
}
.event-tag.et {
  background: rgba(34, 211, 238, 0.12);
  color: #67E8F9;
}
.view-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
  padding-top: 16px;
  transition: color 0.25s ease;
}
.view-more-link:hover {
  color: var(--text-primary);
}
.view-more-link svg {
  transition: transform 0.25s ease;
}
.view-more-link:hover svg {
  transform: translateX(4px);
}

/* Data Refresh Info */
.refresh-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}
.refresh-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 10px;
}
.refresh-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin: 0 0 12px;
}
.refresh-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.refresh-list li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.7;
}
.refresh-list li::before {
  content: '◆';
  color: var(--accent);
  font-size: 10px;
  margin-top: 6px;
  flex-shrink: 0;
}
.refresh-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  min-height: 260px;
  background: rgba(15, 23, 42, 0.5);
}
.refresh-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.75;
}

/* Match Filters */
.filter-panel {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow-card);
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.filter-group:last-child {
  margin-bottom: 0;
}
.filter-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 60px;
}
.filter-chip {
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid rgba(59, 130, 246, 0.25);
  background: transparent;
  transition: all 0.25s ease;
  cursor: pointer;
}
.filter-chip:hover {
  color: var(--text-primary);
  border-color: rgba(59, 130, 246, 0.5);
  background: rgba(59, 130, 246, 0.08);
}
.filter-chip.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 14px rgba(59, 130, 246, 0.4);
}

/* Score Insights */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.insight-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.insight-card:hover {
  border-color: var(--border-card-hover);
}
.insight-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--primary-light);
  font-size: 18px;
  font-weight: 700;
}
.insight-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
}
.insight-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

/* Related News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.news-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.news-card:hover {
  border-color: var(--border-card-hover);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.42);
}
.news-card-image {
  width: 100%;
  aspect-ratio: 16/8;
  overflow: hidden;
  background: rgba(15, 23, 42, 0.5);
  border-bottom: 1px solid rgba(59, 130, 246, 0.15);
}
.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.78;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.news-card:hover .news-card-image img {
  opacity: 0.9;
  transform: scale(1.03);
}
.news-card-body {
  padding: 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-date {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.news-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 1.5;
}
.news-summary {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0 0 14px;
  flex: 1;
}
.news-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
  align-self: flex-start;
  transition: color 0.25s ease;
}
.news-link:hover {
  color: var(--text-primary);
}

/* CTA Section */
.cta-glow-card {
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.12), var(--shadow-card);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-glow-card::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 180px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.22) 0%, transparent 70%);
  pointer-events: none;
}
.cta-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 12px;
  letter-spacing: -0.3px;
}
.cta-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.8;
}
.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.cta-primary {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 13px 28px;
  border-radius: 12px;
  box-shadow: var(--shadow-glow);
  transition: all 0.3s ease;
}
.cta-primary:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-glow-hover);
  transform: translateY(-2px);
}
.cta-secondary {
  background: transparent;
  color: #93C5FD;
  font-weight: 600;
  font-size: 14px;
  padding: 13px 24px;
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.6);
  transition: all 0.3s ease;
}
.cta-secondary:hover {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.9);
  color: #BFDBFE;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 780px;
}
.faq-item {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease;
}
.faq-item:hover {
  border-color: var(--border-card-hover);
}
.faq-item summary {
  padding: 16px 20px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 18px;
  color: var(--primary-light);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item .faq-answer {
  padding: 0 20px 18px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Footer */
.site-footer {
  margin-top: 60px;
  background: rgba(10, 15, 30, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(59, 130, 246, 0.18);
  padding: 48px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
.footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 320px;
  margin: 0;
}
.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}
.site-footer .footer-grid a {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  transition: color 0.25s ease;
}
.site-footer .footer-grid a:hover {
  color: var(--primary-light);
}
.footer-bottom {
  border-top: 1px solid rgba(59, 130, 246, 0.15);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-links-desktop {
    gap: 3px;
  }
  .nav-link {
    padding: 8px 10px;
    font-size: 13px;
  }
  .category-header-inner {
    grid-template-columns: 1fr 260px;
  }
  .score-stream-header,
  .score-row {
    grid-template-columns: 1fr 0.8fr 1.4fr 0.9fr 1.4fr 1fr;
    padding: 14px 14px;
  }
  .team-name {
    font-size: 13px;
  }
  .score-center {
    font-size: 17px;
  }
}
@media (max-width: 768px) {
  .nav-links-desktop {
    display: none;
  }
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nav-cta {
    font-size: 12px;
    padding: 9px 14px;
  }
  .category-header {
    padding: 32px 0 20px;
  }
  .category-header-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .category-title {
    font-size: 24px;
  }
  .header-metrics {
    gap: 10px;
  }
  .header-metric-item {
    padding: 10px 14px;
    min-width: auto;
    flex: 1;
  }
  .header-metric-value {
    font-size: 18px;
  }
  .section-block {
    padding: 36px 0;
  }
  .section-title {
    font-size: 18px;
  }
  .score-stream-header {
    display: none;
  }
  .score-row {
    grid-template-columns: 1fr auto;
    gap: 6px 14px;
    padding: 16px 16px;
  }
  .score-league {
    grid-column: 1;
  }
  .score-status {
    grid-column: 2;
    text-align: right;
  }
  .team-name.left {
    grid-column: 1;
    text-align: left;
  }
  .score-center {
    grid-column: 2;
    grid-row: 3;
  }
  .team-name.right {
    grid-column: 1;
    grid-row: 4;
    text-align: left;
  }
  .event-tags {
    grid-column: 1 / -1;
    grid-row: 5;
  }
  .refresh-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .refresh-visual {
    min-height: 200px;
  }
  .insight-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .news-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cta-glow-card {
    padding: 32px 20px;
  }
  .cta-title {
    font-size: 20px;
  }
  .filter-panel {
    padding: 18px 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .logo-text {
    font-size: 16px;
  }
  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .nav-cta {
    padding: 8px 12px;
    font-size: 11px;
  }
  .category-title {
    font-size: 21px;
  }
  .section-block {
    padding: 28px 0;
  }
  .cta-buttons {
    flex-direction: column;
    gap: 10px;
  }
  .cta-primary,
  .cta-secondary {
    width: 100%;
    text-align: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .header-metric-item {
    padding: 8px 10px;
  }
  .header-metric-value {
    font-size: 16px;
  }
  .header-metric-label {
    font-size: 10px;
  }
}

/* roulang page: category2 */
:root {
            --bg-primary: #0A0F1E;
            --bg-secondary: #0F172A;
            --bg-card: rgba(15, 23, 42, 0.60);
            --bg-card-hover: rgba(30, 41, 59, 0.55);
            --border-card: rgba(59, 130, 246, 0.28);
            --border-card-hover: rgba(59, 130, 246, 0.55);
            --primary: #3B82F6;
            --primary-light: #60A5FA;
            --accent: #22D3EE;
            --danger: #EF4444;
            --gold: #F59E0B;
            --text-primary: #E2E8F0;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.45);
            --shadow-glow-hover: 0 0 28px rgba(59, 130, 246, 0.75);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --header-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
            background-image: radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(34, 211, 238, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(15, 23, 42, 0.9) 0%, transparent 70%);
            background-attachment: fixed;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.35;
            font-weight: 700;
        }

        p {
            margin: 0;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.18);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.85), rgba(34, 211, 238, 0.65));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: #fff;
            letter-spacing: -0.5px;
            box-shadow: 0 0 14px rgba(59, 130, 246, 0.5);
        }

        .logo-text {
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.1);
        }

        .nav-link.active {
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.14);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            padding: 10px 18px;
            border-radius: 10px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.4);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--text-primary);
            transition: all 0.25s ease;
        }

        .mobile-toggle:hover {
            background: rgba(59, 130, 246, 0.25);
            border-color: rgba(59, 130, 246, 0.7);
        }

        .mobile-toggle:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        .mobile-menu {
            border-top: 1px solid rgba(59, 130, 246, 0.2);
            padding: 12px 20px 16px;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 14px;
            border-radius: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .mobile-menu a:hover {
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.12);
        }

        .mobile-menu a.mobile-active {
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.16);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-section {
            padding: 28px 0 8px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--primary-light);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }

        /* ===== Category Header ===== */
        .category-header {
            padding: 32px 0 48px;
        }

        .category-header .h1-wrap {
            max-width: 760px;
        }

        .category-header h1 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .category-header .subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        .category-header .header-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(59, 130, 246, 0.14);
            border: 1px solid rgba(59, 130, 246, 0.35);
            color: var(--primary-light);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 48px 0;
        }

        .section-block.alt-bg {
            background: rgba(15, 23, 42, 0.45);
            border-top: 1px solid rgba(59, 130, 246, 0.12);
            border-bottom: 1px solid rgba(59, 130, 246, 0.12);
        }

        .section-title {
            font-size: clamp(20px, 2.8vw, 26px);
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 640px;
        }

        .section-header-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        /* ===== Glass Card Base ===== */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
            overflow: hidden;
        }

        .glass-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 24px rgba(59, 130, 246, 0.2);
        }

        .glass-card-inner {
            padding: 22px 24px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 14px;
            border-radius: 12px;
            padding: 12px 24px;
            transition: all 0.3s ease;
            white-space: nowrap;
            line-height: 1.4;
            text-align: center;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.45), 0 0 0 1px rgba(59, 130, 246, 0.6);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: 0 0 28px rgba(59, 130, 246, 0.75), 0 0 0 1px rgba(59, 130, 246, 0.8);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(59, 130, 246, 0.4);
        }

        .btn-secondary {
            background: transparent;
            color: #93C5FD;
            border: 1px solid rgba(59, 130, 246, 0.6);
        }

        .btn-secondary:hover {
            background: rgba(59, 130, 246, 0.12);
            border-color: rgba(59, 130, 246, 0.9);
            color: var(--primary-light);
        }

        .btn-secondary:active {
            background: rgba(59, 130, 246, 0.2);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 13px;
            border-radius: 10px;
        }

        /* ===== Stats Overview Cards ===== */
        .stats-overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stat-number-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all 0.3s ease;
        }

        .stat-number-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }

        .stat-number-card .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 6px;
        }

        .stat-number-card .stat-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .stat-number-card .stat-change {
            font-size: 11px;
            font-weight: 600;
            margin-top: 4px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .stat-number-card .stat-change.up {
            color: var(--accent);
        }

        .stat-number-card .stat-change.down {
            color: var(--danger);
        }

        .stat-number-card .stat-change.flat {
            color: var(--text-muted);
        }

        /* ===== Chart Cards ===== */
        .chart-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .chart-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            transition: all 0.35s ease;
        }

        .chart-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }

        .chart-card .chart-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .chart-card .chart-subtitle {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .chart-card .chart-body {
            display: flex;
            align-items: flex-end;
            gap: 8px;
            height: 140px;
            padding-top: 8px;
        }

        .chart-card .chart-bar-wrap {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            min-width: 0;
        }

        .chart-card .chart-bar {
            width: 100%;
            max-width: 42px;
            border-radius: 6px 6px 2px 2px;
            background: linear-gradient(180deg, rgba(59, 130, 246, 0.85), rgba(59, 130, 246, 0.35));
            transition: all 0.35s ease;
            min-height: 4px;
        }

        .chart-card .chart-bar-wrap:hover .chart-bar {
            background: linear-gradient(180deg, rgba(34, 211, 238, 0.9), rgba(59, 130, 246, 0.4));
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.4);
        }

        .chart-card .chart-bar-label {
            font-size: 10px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .chart-card .chart-bar-value {
            font-family: var(--font-mono);
            font-size: 10px;
            font-weight: 600;
            color: var(--accent);
        }

        .donut-chart {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            position: relative;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .donut-chart .donut-center {
            position: absolute;
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
        }

        .chart-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 14px;
            justify-content: center;
        }

        .chart-legend .legend-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 11px;
            color: var(--text-secondary);
        }

        .chart-legend .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 3px;
            display: inline-block;
        }

        /* ===== Report List ===== */
        .report-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .report-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 18px;
            background: rgba(15, 23, 42, 0.5);
            border: 1px solid rgba(59, 130, 246, 0.14);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
            flex-wrap: wrap;
        }

        .report-item:hover {
            border-color: var(--border-card);
            background: rgba(30, 41, 59, 0.45);
        }

        .report-item .report-name {
            font-size: 13px;
            color: var(--text-primary);
            font-weight: 600;
        }

        .report-item .report-tag {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 6px;
            font-weight: 600;
            white-space: nowrap;
        }

        .report-item .report-tag.hot {
            background: rgba(239, 68, 68, 0.15);
            color: var(--danger);
            border: 1px solid rgba(239, 68, 68, 0.3);
        }

        .report-item .report-tag.new {
            background: rgba(34, 211, 238, 0.15);
            color: var(--accent);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

        .report-item .report-tag.updated {
            background: rgba(59, 130, 246, 0.15);
            color: var(--primary-light);
            border: 1px solid rgba(59, 130, 246, 0.3);
        }

        .report-item .report-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
        }

        .report-item .report-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-light);
            transition: all 0.2s ease;
        }

        .report-item .report-link:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ===== Indicator Guide ===== */
        .indicator-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .indicator-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 16px 18px;
            background: rgba(15, 23, 42, 0.45);
            border: 1px solid rgba(59, 130, 246, 0.12);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .indicator-item:hover {
            border-color: var(--border-card);
        }

        .indicator-item .indicator-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(59, 130, 246, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: var(--primary-light);
        }

        .indicator-item .indicator-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 3px;
        }

        .indicator-item .indicator-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Trend Tool ===== */
        .trend-tool {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }

        .trend-tool .trend-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .trend-tool .trend-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .trend-tool .trend-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin: 14px 0;
        }

        .trend-tool .trend-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .trend-tool .trend-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
        }

        .trend-tool .trend-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            border: 1px solid var(--border-card);
        }

        .trend-tool .trend-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        .trend-tool .trend-visual .trend-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(180deg, transparent, rgba(10, 15, 30, 0.9));
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ===== Export Guide ===== */
        .export-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .export-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: all 0.3s ease;
        }

        .export-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }

        .export-card .export-format {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .export-card .export-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .export-card .export-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Article Entry ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .article-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.35s ease;
        }

        .article-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }

        .article-card .article-img {
            width: 100%;
            height: 160px;
            overflow: hidden;
            background: rgba(15, 23, 42, 0.6);
            position: relative;
        }

        .article-card .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .article-card:hover .article-img img {
            transform: scale(1.05);
        }

        .article-card .article-img .article-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            background: rgba(10, 15, 30, 0.8);
            color: var(--accent);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

        .article-card .article-body {
            padding: 16px 18px 18px;
        }

        .article-card .article-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .article-card .article-excerpt {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .article-card .article-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-light);
            transition: color 0.2s ease;
        }

        .article-card .article-link:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 64px 0;
        }

        .cta-glass {
            background: var(--bg-card);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .cta-glass::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 120px;
            background: rgba(59, 130, 246, 0.15);
            border-radius: 50%;
            filter: blur(50px);
            pointer-events: none;
        }

        .cta-glass h2 {
            font-size: clamp(20px, 3vw, 28px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
        }

        .cta-glass p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto 24px;
            position: relative;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(10, 15, 30, 0.85);
            border-top: 1px solid rgba(59, 130, 246, 0.18);
            padding: 48px 0 24px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }

        .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-grid .footer-col a,
        .footer-grid > div > a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            padding: 4px 0;
            transition: color 0.2s ease;
        }

        .footer-grid .footer-col a:hover,
        .footer-grid > div > a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(59, 130, 246, 0.14);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

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

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

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }

            .mobile-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-menu {
                display: block;
            }

            .mobile-menu.hidden {
                display: none;
            }

            .category-header {
                padding: 20px 0 32px;
            }

            .category-header h1 {
                font-size: 26px;
            }

            .section-block {
                padding: 32px 0;
            }

            .stats-overview-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .chart-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .indicator-list {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .trend-tool {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .trend-tool .trend-visual img {
                min-height: 180px;
            }

            .export-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .article-card .article-img {
                height: 140px;
            }

            .cta-glass {
                padding: 28px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .section-header-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .report-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .category-header h1 {
                font-size: 22px;
            }

            .glass-card-inner {
                padding: 16px 18px;
            }

            .chart-card {
                padding: 16px 18px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .stat-number-card .stat-value {
                font-size: 24px;
            }

            .nav-cta {
                font-size: 11px;
                padding: 8px 13px;
            }

            .logo-text {
                font-size: 15px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 11px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A0F1E;
            --bg-secondary: #0F172A;
            --bg-card: rgba(15, 23, 42, 0.60);
            --bg-card-hover: rgba(30, 41, 59, 0.55);
            --border-card: rgba(59, 130, 246, 0.28);
            --border-card-hover: rgba(59, 130, 246, 0.55);
            --primary: #3B82F6;
            --primary-light: #60A5FA;
            --accent: #22D3EE;
            --danger: #EF4444;
            --gold: #F59E0B;
            --text-primary: #E2E8F0;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.45);
            --shadow-glow-hover: 0 0 28px rgba(59, 130, 246, 0.75);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --header-height: 68px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 18% 8%, rgba(59, 130, 246, 0.07) 0%, transparent 55%),
                radial-gradient(ellipse at 82% 48%, rgba(34, 211, 238, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(15, 23, 42, 0.9) 0%, transparent 70%);
            background-attachment: fixed;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.18);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.85), rgba(34, 211, 238, 0.65));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: #fff;
            letter-spacing: -0.5px;
            box-shadow: 0 0 14px rgba(59, 130, 246, 0.5);
        }
        .logo-text {
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.1);
        }
        .nav-link.active {
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.14);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
        }
        .nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            padding: 10px 18px;
            border-radius: 10px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-1px);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .mobile-toggle {
            display: none;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid var(--border-card);
            color: var(--text-primary);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            transition: all 0.25s ease;
        }
        .mobile-toggle:hover {
            background: rgba(59, 130, 246, 0.22);
            border-color: var(--border-card-hover);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 28px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--primary-light);
            font-weight: 500;
        }

        /* Hero */
        .page-hero {
            position: relative;
            padding: 40px 0 56px;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero-grid {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(59, 130, 246, 0.14);
            border: 1px solid rgba(59, 130, 246, 0.3);
            color: var(--primary-light);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 16px;
        }
        .hero-title {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .hero-title .accent {
            color: var(--accent);
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-img-wrap {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .hero-img-wrap img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        .hero-img-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 16px;
            border-top: 1px solid var(--border-card);
            font-size: 12px;
            color: var(--text-secondary);
            background: rgba(15, 23, 42, 0.7);
        }
        .hero-img-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.7);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        /* Section general */
        .section {
            padding: 40px 0;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .section-title {
            font-size: clamp(20px, 2.5vw, 26px);
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title .bar {
            display: inline-block;
            width: 4px;
            height: 22px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 640px;
            line-height: 1.8;
        }

        /* Tutorial cards */
        .tutorial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .tutorial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .tutorial-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 20px rgba(59, 130, 246, 0.2);
            transform: translateY(-2px);
            background: var(--bg-card-hover);
        }
        .tutorial-card-img {
            position: relative;
            height: 170px;
            overflow: hidden;
        }
        .tutorial-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tutorial-card:hover .tutorial-card-img img {
            transform: scale(1.03);
        }
        .tutorial-card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(10, 15, 30, 0.85) 100%);
        }
        .tutorial-card-img .cat-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 15, 30, 0.7);
            border: 1px solid var(--border-card);
            color: var(--text-secondary);
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }
        .tutorial-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .tutorial-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .tutorial-card-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .tutorial-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(59, 130, 246, 0.15);
            font-size: 12px;
            color: var(--text-muted);
        }
        .tutorial-card-meta .num {
            font-family: var(--font-mono);
            color: var(--accent);
            font-weight: 600;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
            position: relative;
        }
        .step-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }
        .step-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: rgba(59, 130, 246, 0.35);
            line-height: 1;
            margin-bottom: 12px;
            display: block;
        }
        .step-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Glossary */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .glossary-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }
        .glossary-item:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }
        .glossary-term {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .glossary-def {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Cases */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 20px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
        }
        .case-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
        }
        .case-score {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(59, 130, 246, 0.08);
            border: 1px solid rgba(59, 130, 246, 0.2);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            margin-bottom: 14px;
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
        }
        .case-score .vs {
            color: var(--text-muted);
            font-size: 13px;
            font-weight: 500;
        }
        .case-score .win {
            color: var(--accent);
        }
        .case-score .lose {
            color: var(--danger);
        }
        .case-card h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .case-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Warning */
        .warning-card {
            background: rgba(239, 68, 68, 0.08);
            border: 1px solid rgba(239, 68, 68, 0.3);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .warning-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(239, 68, 68, 0.15);
            border: 1px solid rgba(239, 68, 68, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--danger);
            font-size: 18px;
            font-weight: 700;
        }
        .warning-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--danger);
            margin-bottom: 8px;
        }
        .warning-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .warning-card ul li {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 16px;
            position: relative;
        }
        .warning-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--danger);
            opacity: 0.7;
        }

        /* CTA Banner */
        .cta-banner {
            position: relative;
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid var(--border-card);
            border-radius: 20px;
            padding: 40px 36px;
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
            overflow: hidden;
            text-align: center;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: clamp(20px, 2.2vw, 26px);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid var(--border-card);
            color: #93C5FD;
            font-weight: 500;
            font-size: 14px;
            padding: 12px 22px;
            border-radius: 12px;
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            background: rgba(59, 130, 246, 0.12);
            border-color: var(--border-card-hover);
            color: var(--primary-light);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all 0.3s ease;
        }
        .news-item:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }
        .news-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            background: rgba(59, 130, 246, 0.08);
            border: 1px solid rgba(59, 130, 246, 0.18);
            padding: 4px 10px;
            border-radius: 6px;
            white-space: nowrap;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .news-content h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .news-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: rgba(10, 15, 30, 0.9);
            border-top: 1px solid rgba(59, 130, 246, 0.15);
            margin-top: 40px;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .site-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 0;
            transition: color 0.2s;
        }
        .site-footer a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(59, 130, 246, 0.12);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-img-wrap img {
                height: 220px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .glossary-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .tutorial-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .glossary-grid {
                grid-template-columns: 1fr;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 28px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: 28px 0;
            }
            .breadcrumb {
                padding-top: 16px;
                font-size: 12px;
            }
            .page-hero {
                padding: 24px 0 36px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 24px;
            }
            .hero-sub {
                font-size: 14px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }

        /* Focus visible fallback */
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0A0F1E;
            --bg-secondary: #0F172A;
            --bg-card: rgba(15, 23, 42, 0.60);
            --bg-card-hover: rgba(30, 41, 59, 0.55);
            --border-card: rgba(59, 130, 246, 0.28);
            --border-card-hover: rgba(59, 130, 246, 0.55);
            --primary: #3B82F6;
            --primary-light: #60A5FA;
            --accent: #22D3EE;
            --danger: #EF4444;
            --gold: #F59E0B;
            --text-primary: #E2E8F0;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.45);
            --shadow-glow-hover: 0 0 28px rgba(59, 130, 246, 0.75);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --header-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
            background-image: radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(34, 211, 238, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(15, 23, 42, 0.9) 0%, transparent 70%);
            background-attachment: fixed;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.18);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.85), rgba(34, 211, 238, 0.65));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: #fff;
            letter-spacing: -0.5px;
            box-shadow: 0 0 14px rgba(59, 130, 246, 0.5);
        }

        .logo-text {
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.1);
        }

        .nav-link.active {
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.14);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            padding: 10px 18px;
            border-radius: 10px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: 8px;
            padding: 8px 10px;
            color: var(--text-primary);
            transition: all 0.25s ease;
        }

        .mobile-toggle:hover {
            background: rgba(59, 130, 246, 0.2);
            border-color: rgba(59, 130, 246, 0.5);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }

        .breadcrumb a:hover {
            color: var(--primary-light);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            font-family: var(--font-mono);
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--primary-light);
            font-weight: 500;
        }

        /* Page Hero - Diagonal Slash */
        .page-hero {
            position: relative;
            padding: 56px 0 72px;
            overflow: hidden;
            background: linear-gradient(160deg, rgba(59, 130, 246, 0.22) 0%, rgba(10, 15, 30, 0.92) 45%, rgba(10, 15, 30, 0.98) 100%);
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 70%;
            height: 140%;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.16) 0%, rgba(34, 211, 238, 0.06) 50%, transparent 70%);
            clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
            pointer-events: none;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.5), transparent);
            z-index: 1;
        }

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

        .page-hero-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .page-hero-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .page-hero-title .highlight {
            color: var(--primary-light);
            position: relative;
            display: inline-block;
        }

        .page-hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 540px;
            margin-bottom: 24px;
        }

        .page-hero-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 13px 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
        }

        .page-hero-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }

        .page-hero-cta:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        .hero-cover-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
        }

        .hero-cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 30, 0.2) 0%, rgba(10, 15, 30, 0.65) 100%);
            display: flex;
            align-items: flex-end;
            padding: 16px;
        }

        .hero-cover-tag {
            font-size: 12px;
            color: var(--text-primary);
            background: rgba(10, 15, 30, 0.75);
            border: 1px solid rgba(59, 130, 246, 0.3);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 500;
        }

        /* Section */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: rgba(15, 23, 42, 0.45);
            border-top: 1px solid rgba(59, 130, 246, 0.1);
            border-bottom: 1px solid rgba(59, 130, 246, 0.1);
        }

        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.3);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }

        /* Article Card List */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .article-card {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 20px;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.35s ease;
            box-shadow: var(--shadow-card);
        }

        .article-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 24px rgba(59, 130, 246, 0.2);
            transform: translateY(-2px);
        }

        .article-card-cover {
            overflow: hidden;
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-secondary);
            border-right: 1px solid rgba(59, 130, 246, 0.18);
        }

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

        .article-card:hover .article-card-cover img {
            transform: scale(1.03);
        }

        .article-card-body {
            padding: 24px 24px 20px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .article-date {
            font-family: var(--font-mono);
            color: var(--accent);
            font-weight: 600;
        }

        .article-tag {
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.2);
            padding: 2px 10px;
            border-radius: 14px;
            color: var(--primary-light);
            font-weight: 500;
            font-size: 11px;
        }

        .article-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 8px;
            transition: color 0.25s ease;
        }

        .article-card:hover .article-card-title {
            color: var(--primary-light);
        }

        .article-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-author {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .author-avatar-mini {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.7), rgba(34, 211, 238, 0.55));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-family: var(--font-mono);
            font-size: 11px;
            color: #fff;
            flex-shrink: 0;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-light);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 0;
            transition: all 0.25s ease;
            border-bottom: 1px solid transparent;
        }

        .view-more-link:hover {
            color: #fff;
            border-bottom-color: var(--primary-light);
        }

        /* Expert Cards */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .expert-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all 0.35s ease;
            box-shadow: var(--shadow-card);
            text-align: center;
        }

        .expert-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45), 0 0 20px rgba(59, 130, 246, 0.18);
        }

        .expert-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.8), rgba(34, 211, 238, 0.55));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-family: var(--font-mono);
            font-size: 20px;
            color: #fff;
            margin: 0 auto 14px;
            box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
        }

        .expert-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .expert-domain {
            font-size: 13px;
            color: var(--primary-light);
            font-weight: 500;
            margin-bottom: 10px;
        }

        .expert-bio {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Filter Tags */
        .filter-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .filter-tag {
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid rgba(59, 130, 246, 0.22);
            transition: all 0.25s ease;
            cursor: default;
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: rgba(59, 130, 246, 0.5);
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.08);
        }

        .filter-tag.active {
            background: rgba(59, 130, 246, 0.18);
            border-color: rgba(59, 130, 246, 0.6);
            color: var(--primary-light);
            font-weight: 600;
        }

        /* Column Preview */
        .column-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .column-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all 0.3s ease;
        }

        .column-item:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }

        .column-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            min-width: 80px;
            flex-shrink: 0;
        }

        .column-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.7);
            flex-shrink: 0;
        }

        .column-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            flex: 1;
        }

        .column-status {
            font-size: 12px;
            color: var(--gold);
            font-weight: 500;
            flex-shrink: 0;
        }

        /* Contribute */
        .contribute-box {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: center;
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .contribute-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .contribute-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .contribute-action {
            display: flex;
            justify-content: flex-end;
            gap: 12px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            border: 1px solid rgba(59, 130, 246, 0.6);
            color: #93C5FD;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 22px;
            border-radius: 12px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(59, 130, 246, 0.12);
            border-color: rgba(59, 130, 246, 0.9);
            color: #fff;
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* Disclaimer */
        .disclaimer-box {
            background: rgba(239, 68, 68, 0.06);
            border: 1px solid rgba(239, 68, 68, 0.2);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }

        .disclaimer-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(239, 68, 68, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--danger);
            font-weight: 700;
            font-family: var(--font-mono);
            flex-shrink: 0;
        }

        .disclaimer-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .disclaimer-text strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--bg-card);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-card-hover);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            text-align: center;
            box-shadow: var(--shadow-card), 0 0 40px rgba(59, 130, 246, 0.12);
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 70%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
        }

        .subscribe-cta .container-inner {
            position: relative;
            z-index: 1;
        }

        .subscribe-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .subscribe-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 22px;
            line-height: 1.7;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 13px 26px;
            border-radius: 12px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: rgba(10, 15, 30, 0.9);
            border-top: 1px solid rgba(59, 130, 246, 0.18);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .site-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 0;
            transition: color 0.25s ease;
        }

        .site-footer a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(59, 130, 246, 0.12);
            padding-top: 20px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .page-hero-title {
                font-size: 30px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .article-card {
                grid-template-columns: 200px 1fr;
            }

            .contribute-box {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .contribute-action {
                justify-content: flex-start;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }

            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .nav-wrapper {
                height: 60px;
            }

            .section {
                padding: 48px 0;
            }

            .page-hero {
                padding: 40px 0 56px;
            }

            .page-hero-title {
                font-size: 26px;
            }

            .page-hero-subtitle {
                font-size: 14px;
            }

            .article-card {
                grid-template-columns: 1fr;
            }

            .article-card-cover {
                min-height: 180px;
                border-right: none;
                border-bottom: 1px solid rgba(59, 130, 246, 0.18);
            }

            .article-card-body {
                padding: 20px;
            }

            .expert-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .filter-tag {
                font-size: 12px;
                padding: 7px 14px;
            }

            .column-item {
                flex-wrap: wrap;
                gap: 8px;
            }

            .column-date {
                min-width: 70px;
            }

            .subscribe-cta {
                padding: 28px 20px;
            }

            .subscribe-title {
                font-size: 20px;
            }

            .contribute-box {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .page-hero-title {
                font-size: 22px;
            }

            .section-title {
                font-size: 22px;
            }

            .logo-text {
                font-size: 16px;
            }

            .nav-cta {
                font-size: 12px;
                padding: 9px 14px;
            }

            .article-card-title {
                font-size: 16px;
            }

            .article-card-excerpt {
                font-size: 13px;
            }

            .breadcrumb {
                font-size: 12px;
                flex-wrap: wrap;
            }

            .hero-cover-wrap {
                aspect-ratio: 16/9;
            }
        }

        /* Focus visible global */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* Transition helpers */
        .transition-smooth {
            transition: all 0.3s ease;
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0A0F1E;
            --bg-secondary: #0F172A;
            --bg-card: rgba(15, 23, 42, 0.60);
            --bg-card-hover: rgba(30, 41, 59, 0.55);
            --border-card: rgba(59, 130, 246, 0.28);
            --border-card-hover: rgba(59, 130, 246, 0.55);
            --primary: #3B82F6;
            --primary-light: #60A5FA;
            --accent: #22D3EE;
            --danger: #EF4444;
            --gold: #F59E0B;
            --text-primary: #E2E8F0;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.45);
            --shadow-glow-hover: 0 0 28px rgba(59, 130, 246, 0.75);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --font-mono: 'SF Mono', 'Roboto Mono', 'Consolas', 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --header-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
            background-image: radial-gradient(ellipse at 20% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(34, 211, 238, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 100%, rgba(15, 23, 42, 0.9) 0%, transparent 70%);
            background-attachment: fixed;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 30, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(59, 130, 246, 0.18);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.85), rgba(34, 211, 238, 0.65));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: #fff;
            letter-spacing: -0.5px;
            box-shadow: 0 0 14px rgba(59, 130, 246, 0.5);
        }
        .logo-text {
            font-weight: 800;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(59, 130, 246, 0.1);
        }
        .nav-link.active {
            color: var(--primary-light);
            background: rgba(59, 130, 246, 0.14);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.6);
        }
        .nav-cta {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            padding: 10px 18px;
            border-radius: 10px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-cta:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-1px);
        }
        .nav-cta:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .mobile-toggle {
            display: none;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.3);
            border-radius: 8px;
            padding: 8px;
            color: var(--text-primary);
            align-items: center;
            justify-content: center;
        }
        #mobileMenu {
            display: none;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 12px 0 4px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 10px;
        }
        .breadcrumb .breadcrumb-current {
            color: var(--primary-light);
            font-weight: 600;
        }

        /* Hero */
        .hero-tools {
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .hero-tools::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-tools-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(59, 130, 246, 0.12);
            border: 1px solid rgba(59, 130, 246, 0.3);
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 18px;
        }
        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.8);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }
        .hero-title {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .hero-title .highlight {
            color: var(--primary-light);
            background: linear-gradient(135deg, #3B82F6, #22D3EE);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 24px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-glow);
            transition: all 0.3s ease;
            border: 1px solid rgba(59, 130, 246, 0.6);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-glow-hover);
            transform: translateY(-2px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #93C5FD;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: 12px;
            border: 1px solid rgba(59, 130, 246, 0.6);
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            background: rgba(59, 130, 246, 0.12);
            border-color: rgba(59, 130, 246, 0.9);
            color: #BFDBFE;
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* Hero icon matrix */
        .hero-icon-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }
        .matrix-item {
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .matrix-item:hover {
            border-color: var(--border-card-hover);
            background: rgba(30, 41, 59, 0.6);
            transform: translateY(-2px);
        }
        .matrix-icon {
            width: 40px;
            height: 40px;
            margin: 0 auto 8px;
            border-radius: 10px;
            background: rgba(59, 130, 246, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            font-size: 18px;
        }
        .matrix-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            line-height: 1.4;
        }
        .hero-status-bar {
            margin-top: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 18px;
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            flex-wrap: wrap;
        }
        .status-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .status-item .mono {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 16px;
            color: var(--accent);
        }
        .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 6px rgba(34, 211, 238, 0.6);
        }

        /* Sections */
        .section {
            padding: 56px 0;
            position: relative;
        }
        .section-alt {
            background: rgba(15, 23, 42, 0.4);
            border-top: 1px solid rgba(59, 130, 246, 0.1);
            border-bottom: 1px solid rgba(59, 130, 246, 0.1);
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--primary-light);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
        }

        /* Tool cards */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tool-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .tool-card:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 20px rgba(59, 130, 246, 0.2);
            transform: translateY(-3px);
        }
        .tool-card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-secondary);
        }
        .tool-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .tool-card:hover .tool-card-image img {
            transform: scale(1.04);
        }
        .tool-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 40%, rgba(10, 15, 30, 0.7));
            pointer-events: none;
        }
        .tool-card-body {
            padding: 18px 20px 20px;
        }
        .tool-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tool-card-title .tool-icon {
            width: 28px;
            height: 28px;
            border-radius: 7px;
            background: rgba(59, 130, 246, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            font-size: 13px;
            flex-shrink: 0;
        }
        .tool-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .tool-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .tool-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(59, 130, 246, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(59, 130, 246, 0.2);
        }
        .tool-tag.gold {
            background: rgba(245, 158, 11, 0.1);
            color: var(--gold);
            border-color: rgba(245, 158, 11, 0.25);
        }
        .tool-card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 12px;
            transition: all 0.25s ease;
        }
        .tool-card-link:hover {
            color: #93C5FD;
            gap: 8px;
        }

        /* Usage steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .step-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            position: relative;
        }
        .step-card:hover {
            border-color: var(--border-card-hover);
            transform: translateY(-2px);
        }
        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.8), rgba(34, 211, 238, 0.5));
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 15px;
            color: #fff;
            margin-bottom: 14px;
            box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
        }
        .step-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* Featured tools */
        .featured-tools-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 20px rgba(59, 130, 246, 0.22);
            transform: translateY(-3px);
        }
        .featured-card-img {
            aspect-ratio: 16/8;
            overflow: hidden;
            position: relative;
        }
        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .featured-card:hover .featured-card-img img {
            transform: scale(1.04);
        }
        .featured-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .featured-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .featured-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 12px;
        }
        .featured-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 11px;
            font-weight: 700;
            background: rgba(245, 158, 11, 0.15);
            color: var(--gold);
            border: 1px solid rgba(245, 158, 11, 0.3);
            align-self: flex-start;
            margin-bottom: 10px;
        }

        /* Resource list */
        .resource-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .resource-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 18px;
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }
        .resource-item:hover {
            border-color: var(--border-card-hover);
            background: var(--bg-card-hover);
        }
        .resource-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(59, 130, 246, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            font-size: 16px;
            flex-shrink: 0;
        }
        .resource-info {
            flex: 1;
            min-width: 0;
        }
        .resource-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .resource-meta {
            font-size: 12px;
            color: var(--text-muted);
        }
        .resource-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            border: 1px solid rgba(59, 130, 246, 0.4);
            transition: all 0.25s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .resource-download:hover {
            background: rgba(59, 130, 246, 0.1);
            border-color: rgba(59, 130, 246, 0.7);
            color: #93C5FD;
        }

        /* Changelog */
        .changelog-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 24px;
        }
        .changelog-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: rgba(59, 130, 246, 0.2);
            border-radius: 2px;
        }
        .changelog-item {
            position: relative;
            padding: 14px 0 14px 20px;
            border-bottom: 1px solid rgba(59, 130, 246, 0.08);
        }
        .changelog-item:last-child {
            border-bottom: none;
        }
        .changelog-item::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 20px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
        }
        .changelog-date {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 4px;
        }
        .changelog-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .changelog-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--border-card-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            text-align: left;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            transition: all 0.25s ease;
            background: transparent;
            border: none;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            font-size: 11px;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA section */
        .cta-section {
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            background: var(--bg-card);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-card), 0 0 40px rgba(59, 130, 246, 0.1);
        }
        .cta-title {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            align-items: center;
        }

        /* Footer */
        .site-footer {
            background: rgba(10, 15, 30, 0.9);
            border-top: 1px solid rgba(59, 130, 246, 0.15);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-grid a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            transition: color 0.25s ease;
            line-height: 1.6;
        }
        .footer-grid a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid rgba(59, 130, 246, 0.1);
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-tools-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-tools-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            #mobileMenu.show {
                display: block;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 12px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-icon-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 20px;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-status-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .hero-title {
                font-size: 22px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }