/* roulang page: index */
:root {
            --bg-night: #0D0F12;
            --bg-surface: #13171F;
            --card-base: #1A1F29;
            --card-inner: #222936;
            --brand-gold-1: #FFB800;
            --brand-gold-2: #FF6A00;
            --brand-gradient: linear-gradient(135deg, #FFB800 0%, #FF6A00 100%);
            --brand-glow: rgba(255, 184, 0, 0.28);
            --tactical-gray: #8F9CAE;
            --tactical-light: #E2E8F0;
            --tactical-border: rgba(255, 255, 255, 0.08);
            --tactical-border-focus: rgba(255, 184, 0, 0.45);
            --alert-red: #EF4444;
            --alert-red-bg: rgba(239, 68, 68, 0.12);
            --success-green: #10B981;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        body {
            background-color: var(--bg-night);
            color: var(--tactical-light);
            font-family: var(--font-main);
            margin: 0;
            padding: 0;
            line-height: 1.68;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 15% 15%, rgba(255, 184, 0, 0.04) 0%, transparent 45%),
                radial-gradient(circle at 85% 65%, rgba(255, 106, 0, 0.03) 0%, transparent 45%),
                linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
            background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
        }

        a {
            text-decoration: none;
            transition: all 0.25s ease;
        }

        /* Tactical Header */
        .tactical-navbar {
            background-color: rgba(13, 15, 18, 0.94);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--tactical-border);
            padding: 18px 0;
            position: sticky;
            top: 0;
            z-index: 1020;
        }
        .nav-brand-logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 12px;
            color: #FFFFFF;
        }
        .logo-crosshair-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px var(--brand-glow);
            position: relative;
        }
        .logo-crosshair-icon::before {
            content: '';
            position: absolute;
            width: 14px;
            height: 14px;
            border: 2px solid #0D0F12;
            border-radius: 50%;
        }
        .nav-links-wrap .nav-link {
            color: #C8D2DC;
            font-size: 0.96rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 8px;
            transition: all 0.2s ease;
            position: relative;
        }
        .nav-links-wrap .nav-link:hover,
        .nav-links-wrap .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links-wrap .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }
        .btn-brand-solid {
            background: var(--brand-gradient);
            color: #0D0F12;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            border-radius: 10px;
            padding: 10px 24px;
            box-shadow: 0 8px 20px var(--brand-glow);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .btn-brand-solid:hover {
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 184, 0, 0.4);
        }
        .btn-tactical-outline {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--tactical-border);
            color: var(--tactical-light);
            font-weight: 600;
            border-radius: 10px;
            padding: 10px 22px;
            transition: all 0.2s ease;
        }
        .btn-tactical-outline:hover {
            border-color: var(--brand-gold-1);
            color: #FFFFFF;
            background: rgba(255, 184, 0, 0.08);
        }

        /* Generic Section Styling */
        .site-section {
            padding: 96px 0;
            position: relative;
        }
        .section-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--brand-gold-1);
            background: rgba(255, 184, 0, 0.08);
            border: 1px solid rgba(255, 184, 0, 0.22);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
        }
        .section-tagline::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-gold-1);
            box-shadow: 0 0 8px var(--brand-gold-1);
        }
        .section-title {
            font-size: 2.3rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 18px;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }
        .section-desc {
            color: var(--tactical-gray);
            font-size: 1.05rem;
            max-width: 820px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

        /* Rounded Large Card Base */
        .tactical-card {
            background: var(--card-base);
            border: 1px solid var(--tactical-border);
            border-radius: 22px;
            box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.65);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            position: relative;
            overflow: hidden;
        }
        .tactical-card:hover {
            border-color: var(--tactical-border-focus);
            box-shadow: 0 20px 42px -10px rgba(0, 0, 0, 0.8), 0 0 20px rgba(255, 184, 0, 0.1);
            transform: translateY(-4px);
        }
        .corner-crosshair {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 12px;
            height: 12px;
            border-top: 2px solid rgba(255, 184, 0, 0.4);
            border-right: 2px solid rgba(255, 184, 0, 0.4);
        }

        /* Hero Section (Before/After Comparison Blueprint) */
        .hero-section {
            padding: 80px 0 100px;
            position: relative;
            border-bottom: 1px solid var(--tactical-border);
        }
        .hero-h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.18;
            color: #FFFFFF;
            letter-spacing: -0.03em;
            margin-bottom: 24px;
        }
        .hero-h1 span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-intro {
            font-size: 1.15rem;
            color: #A0AEC0;
            line-height: 1.85;
            margin-bottom: 36px;
        }
        .hero-badges-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 38px;
        }
        .data-badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(26, 31, 41, 0.85);
            border: 1px solid var(--tactical-border);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.86rem;
            color: var(--tactical-light);
        }
        .data-badge-pill .pill-metric {
            color: var(--brand-gold-1);
            font-weight: 700;
            font-family: monospace;
        }
        .before-after-stage {
            background: var(--card-base);
            border: 1px solid var(--tactical-border);
            border-radius: 24px;
            padding: 24px;
            position: relative;
            box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.85);
        }
        .comparison-col-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .compare-pane {
            background: var(--bg-surface);
            border: 1px solid var(--tactical-border);
            border-radius: 16px;
            padding: 24px 20px;
            position: relative;
        }
        .compare-pane.before-state {
            border-top: 3px solid var(--alert-red);
        }
        .compare-pane.after-state {
            border-top: 3px solid var(--brand-gold-1);
            background: linear-gradient(180deg, rgba(255, 184, 0, 0.05) 0%, var(--bg-surface) 100%);
        }
        .compare-tag {
            font-size: 0.76rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            padding: 4px 10px;
            border-radius: 6px;
            display: inline-block;
            margin-bottom: 14px;
        }
        .tag-before {
            background: var(--alert-red-bg);
            color: var(--alert-red);
            border: 1px solid rgba(239, 68, 68, 0.25);
        }
        .tag-after {
            background: rgba(255, 184, 0, 0.12);
            color: var(--brand-gold-1);
            border: 1px solid rgba(255, 184, 0, 0.35);
        }
        .compare-metric-box {
            background: rgba(0, 0, 0, 0.3);
            border-radius: 10px;
            padding: 12px;
            margin-top: 14px;
            border: 1px dashed var(--tactical-border);
        }

        /* Category Gateway Matrix */
        .category-direct-card {
            background: linear-gradient(145deg, #1A1F29 0%, #141820 100%);
            border: 1px solid var(--tactical-border);
            border-radius: 22px;
            padding: 38px 32px;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 280px;
        }
        .category-direct-card::after {
            content: '';
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: var(--brand-glow);
            filter: blur(45px);
            pointer-events: none;
        }

        /* Process Steps 01-04 */
        .step-num-badge {
            font-family: monospace;
            font-size: 1.8rem;
            font-weight: 800;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 12px;
            display: inline-block;
        }

        /* Metrics Counter Board */
        .metric-big-num {
            font-size: 3.4rem;
            font-weight: 800;
            letter-spacing: -0.04em;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.1;
            margin-bottom: 8px;
            font-family: monospace;
        }

        /* HUD Target Cards */
        .hud-radar-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 184, 0, 0.1);
            border: 1px solid rgba(255, 184, 0, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-gold-1);
            font-size: 1.2rem;
            margin-bottom: 20px;
        }

        /* Form Controls Overrides */
        .tactical-input {
            background: #11141A;
            border: 1px solid var(--tactical-border);
            color: #FFFFFF;
            border-radius: 12px;
            padding: 14px 18px;
            font-size: 0.98rem;
            width: 100%;
            transition: all 0.2s ease;
        }
        .tactical-input:focus {
            outline: none;
            border-color: var(--brand-gold-1);
            box-shadow: 0 0 16px var(--brand-glow);
            background: #161A22;
        }

        /* Footer */
        .tactical-footer {
            background-color: #0A0C0E;
            border-top: 1px solid var(--tactical-border);
            padding: 80px 0 32px;
            position: relative;
        }
        .tactical-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--tactical-border), transparent);
            margin: 48px 0;
        }
        .footer-link-group a {
            color: var(--tactical-gray);
            font-size: 0.93rem;
            display: block;
            margin-bottom: 12px;
        }
        .footer-link-group a:hover {
            color: var(--brand-gold-1);
            padding-left: 4px;
        }

        @media (max-width: 991px) {
            .hero-h1 { font-size: 2.5rem; }
            .comparison-col-wrap { grid-template-columns: 1fr; }
            .section-title { font-size: 1.9rem; }
            .metric-big-num { font-size: 2.8rem; }
        }
        @media (max-width: 576px) {
            .hero-h1 { font-size: 2rem; }
            .hero-section { padding: 48px 0 64px; }
            .site-section { padding: 64px 0; }
            .before-after-stage { padding: 16px; }
        }

/* roulang page: category2 */
:root {
      --bg-night: #0D0F12;
      --bg-surface: #13171F;
      --card-base: #1A1F29;
      --card-inner: #222936;
      --brand-gold-1: #FFB800;
      --brand-gold-2: #FF6A00;
      --brand-gradient: linear-gradient(135deg, #FFB800 0%, #FF6A00 100%);
      --brand-glow: rgba(255, 184, 0, 0.28);
      --tactical-gray: #8F9CAE;
      --tactical-light: #E2E8F0;
      --tactical-border: rgba(255, 255, 255, 0.08);
      --tactical-border-focus: rgba(255, 184, 0, 0.45);
      --alert-red: #EF4444;
      --alert-red-bg: rgba(239, 68, 68, 0.12);
      --success-green: #10B981;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    body {
      background-color: var(--bg-night);
      color: var(--tactical-light);
      font-family: var(--font-main);
      margin: 0;
      padding: 0;
      line-height: 1.68;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(255, 184, 0, 0.04) 0%, transparent 45%),
        radial-gradient(circle at 85% 65%, rgba(255, 106, 0, 0.03) 0%, transparent 45%),
        linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
      background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
    }

    a {
      text-decoration: none;
      transition: all 0.25s ease;
    }

    /* Tactical Header */
    .tactical-navbar {
      background-color: rgba(13, 15, 18, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--tactical-border);
      padding: 18px 0;
      position: sticky;
      top: 0;
      z-index: 1020;
    }

    .nav-brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 12px;
      color: #FFFFFF;
    }

    .logo-crosshair-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px var(--brand-glow);
      position: relative;
    }

    .logo-crosshair-icon::before {
      content: '';
      position: absolute;
      width: 14px;
      height: 14px;
      border: 2px solid #0D0F12;
      border-radius: 50%;
    }

    .nav-links-wrap .nav-link {
      color: #C8D2DC;
      font-size: 0.96rem;
      font-weight: 500;
      padding: 8px 18px;
      border-radius: 8px;
      transition: all 0.2s ease;
      position: relative;
    }

    .nav-links-wrap .nav-link:hover,
    .nav-links-wrap .nav-link.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.04);
    }

    .nav-links-wrap .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 16px;
      height: 2px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }

    .btn-brand-solid {
      background: var(--brand-gradient);
      color: #0D0F12;
      font-weight: 700;
      font-size: 0.95rem;
      border: none;
      border-radius: 10px;
      padding: 10px 24px;
      box-shadow: 0 8px 20px var(--brand-glow);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .btn-brand-solid:hover {
      color: #000;
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 184, 0, 0.4);
    }

    .btn-tactical-outline {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--tactical-border);
      color: var(--tactical-light);
      font-weight: 600;
      border-radius: 10px;
      padding: 10px 22px;
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    .btn-tactical-outline:hover {
      border-color: var(--brand-gold-1);
      color: #FFFFFF;
      background: rgba(255, 184, 0, 0.08);
    }

    /* Generic Section Styles */
    .site-section {
      padding: 80px 0;
      position: relative;
    }

    .section-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.82rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--brand-gold-1);
      background: rgba(255, 184, 0, 0.08);
      border: 1px solid rgba(255, 184, 0, 0.22);
      padding: 5px 14px;
      border-radius: 20px;
      margin-bottom: 18px;
    }

    .section-tagline::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--brand-gold-1);
      box-shadow: 0 0 8px var(--brand-gold-1);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      line-height: 1.3;
      letter-spacing: -0.02em;
    }

    .section-desc {
      color: var(--tactical-gray);
      font-size: 1.02rem;
      max-width: 820px;
      margin-bottom: 40px;
      line-height: 1.8;
    }

    /* Cards Base */
    .tactical-card {
      background: var(--card-base);
      border: 1px solid var(--tactical-border);
      border-radius: 20px;
      padding: 30px;
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.65);
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
      position: relative;
      overflow: hidden;
    }

    .tactical-card:hover {
      border-color: rgba(255, 184, 0, 0.35);
      box-shadow: 0 20px 42px -8px rgba(0, 0, 0, 0.75), 0 0 20px rgba(255, 184, 0, 0.08);
      transform: translateY(-3px);
    }

    /* Data Badge & Indicator */
    .data-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--tactical-border);
      border-radius: 30px;
      padding: 6px 14px;
      font-size: 0.8rem;
      font-family: monospace;
      color: var(--tactical-light);
    }

    .pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success-green);
      box-shadow: 0 0 8px var(--success-green);
      animation: pulse-ring 2s infinite;
    }

    @keyframes pulse-ring {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.95); opacity: 0.8; }
    }

    /* Specific Category 2 Styles */
    .hud-hero-window {
      padding: 64px 0 50px;
      border-bottom: 1px solid var(--tactical-border);
      background: linear-gradient(180deg, rgba(19, 23, 31, 0.6) 0%, transparent 100%);
    }

    .hud-radar-badge {
      background: var(--card-inner);
      border: 1px solid var(--tactical-border);
      border-radius: 18px;
      padding: 24px;
      position: relative;
    }

    .hud-radar-badge::before {
      content: "";
      position: absolute;
      top: -1px;
      left: 20px;
      width: 40px;
      height: 2px;
      background: var(--brand-gold-1);
    }

    .matrix-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      background: var(--card-base);
      border: 1px solid var(--tactical-border);
      padding: 10px;
      border-radius: 16px;
    }

    .matrix-tab-btn {
      background: transparent;
      border: 1px solid transparent;
      color: var(--tactical-gray);
      padding: 10px 20px;
      border-radius: 12px;
      font-weight: 600;
      font-size: 0.9rem;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .matrix-tab-btn:hover {
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.12);
    }

    .matrix-tab-btn.active {
      background: var(--brand-gradient);
      color: #0D0F12;
      box-shadow: 0 4px 14px var(--brand-glow);
    }

    /* Comparison Dual Stream Cards */
    .dual-stream-card {
      background: var(--card-base);
      border: 1px solid var(--tactical-border);
      border-radius: 20px;
      padding: 34px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .dual-stream-card .crosshair-corner {
      position: absolute;
      width: 8px;
      height: 8px;
      border-top: 2px solid var(--brand-gold-1);
      border-left: 2px solid var(--brand-gold-1);
      top: 14px;
      left: 14px;
    }

    .dual-stream-card .crosshair-corner-br {
      position: absolute;
      width: 8px;
      height: 8px;
      border-bottom: 2px solid var(--brand-gold-1);
      border-right: 2px solid var(--brand-gold-1);
      bottom: 14px;
      right: 14px;
    }

    .param-matrix-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      background: rgba(0, 0, 0, 0.25);
      border: 1px solid rgba(255, 255, 255, 0.05);
      padding: 16px;
      border-radius: 12px;
      margin: 20px 0;
    }

    .param-cell-label {
      font-size: 0.76rem;
      color: var(--tactical-gray);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .param-cell-value {
      font-size: 0.95rem;
      font-weight: 700;
      color: #FFFFFF;
      font-family: monospace;
    }

    /* Tactical Table */
    .tactical-table-wrap {
      background: var(--card-base);
      border: 1px solid var(--tactical-border);
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.65);
    }

    .tactical-table {
      width: 100%;
      margin-bottom: 0;
      color: var(--tactical-light);
      border-collapse: collapse;
    }

    .tactical-table thead th {
      background: var(--card-inner);
      padding: 18px 24px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--brand-gold-1);
      border-bottom: 2px solid rgba(255, 184, 0, 0.25);
      letter-spacing: 0.05em;
      white-space: nowrap;
    }

    .tactical-table tbody td {
      padding: 18px 24px;
      font-size: 0.92rem;
      border-bottom: 1px solid var(--tactical-border);
      vertical-align: middle;
    }

    .tactical-table tbody tr:hover {
      background: rgba(255, 255, 255, 0.02);
    }

    .tactical-table .status-light {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      margin-right: 8px;
    }

    /* Report Long Strip Cards */
    .report-strip-card {
      background: var(--card-base);
      border: 1px solid var(--tactical-border);
      border-radius: 16px;
      padding: 24px;
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }

    .report-strip-card:hover {
      border-color: var(--brand-gold-1);
      transform: translateY(-3px);
      background: #1F2430;
    }

    /* Compliance Chamfer Card */
    .chamfer-card {
      background: linear-gradient(145deg, #181C24, #12151B);
      border: 1px solid var(--tactical-border);
      border-radius: 20px;
      padding: 40px;
      position: relative;
      clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
    }

    .chamfer-card::after {
      content: "";
      position: absolute;
      top: 0;
      right: 0;
      width: 24px;
      height: 24px;
      background: var(--brand-gold-1);
      clip-path: polygon(0 0, 100% 100%, 100% 0);
    }

    /* Ticket Form Box */
    .tactical-form-control {
      background: rgba(0, 0, 0, 0.4);
      border: 1px solid var(--tactical-border);
      border-radius: 10px;
      color: #FFFFFF;
      padding: 12px 18px;
      font-size: 0.95rem;
      width: 100%;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .tactical-form-control:focus {
      border-color: var(--brand-gold-1);
      box-shadow: 0 0 12px rgba(255, 184, 0, 0.15);
    }

    /* Tactical Footer */
    .tactical-footer {
      background: #090B0D;
      border-top: 1px solid var(--tactical-border);
      padding: 80px 0 40px;
      position: relative;
    }

    .tactical-footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--brand-gold-1), transparent);
    }

    .footer-brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .footer-col-title {
      font-size: 0.92rem;
      font-weight: 700;
      color: #FFFFFF;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 22px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-links li {
      margin-bottom: 12px;
    }

    .footer-links a {
      color: var(--tactical-gray);
      font-size: 0.9rem;
    }

    .footer-links a:hover {
      color: var(--brand-gold-1);
      padding-left: 4px;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 30px;
      margin-top: 50px;
      font-size: 0.85rem;
      color: #5A6678;
    }

    @media (max-width: 991px) {
      .section-title { font-size: 1.85rem; }
      .site-section { padding: 60px 0; }
      .param-matrix-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category1 */
:root {
      --bg-night: #0D0F12;
      --bg-surface: #13171F;
      --card-base: #1A1F29;
      --card-inner: #222936;
      --brand-gold-1: #FFB800;
      --brand-gold-2: #FF6A00;
      --brand-gradient: linear-gradient(135deg, #FFB800 0%, #FF6A00 100%);
      --brand-glow: rgba(255, 184, 0, 0.28);
      --tactical-gray: #8F9CAE;
      --tactical-light: #E2E8F0;
      --tactical-border: rgba(255, 255, 255, 0.08);
      --tactical-border-focus: rgba(255, 184, 0, 0.45);
      --alert-red: #EF4444;
      --alert-red-bg: rgba(239, 68, 68, 0.12);
      --success-green: #10B981;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: var(--bg-night);
      color: var(--tactical-light);
      font-family: var(--font-main);
      margin: 0;
      padding: 0;
      line-height: 1.68;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(255, 184, 0, 0.04) 0%, transparent 45%),
        radial-gradient(circle at 85% 65%, rgba(255, 106, 0, 0.03) 0%, transparent 45%),
        linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
      background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
    }
    a {
      text-decoration: none;
      transition: all 0.25s ease;
    }
    .tactical-navbar {
      background-color: rgba(13, 15, 18, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--tactical-border);
      padding: 18px 0;
      position: sticky;
      top: 0;
      z-index: 1020;
    }
    .nav-brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 12px;
      color: #FFFFFF;
    }
    .logo-crosshair-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px var(--brand-glow);
      position: relative;
    }
    .logo-crosshair-icon::before {
      content: '';
      position: absolute;
      width: 14px;
      height: 14px;
      border: 2px solid #0D0F12;
      border-radius: 50%;
    }
    .nav-links-wrap .nav-link {
      color: #C8D2DC;
      font-size: 0.96rem;
      font-weight: 500;
      padding: 8px 18px;
      border-radius: 8px;
      transition: all 0.2s ease;
      position: relative;
    }
    .nav-links-wrap .nav-link:hover,
    .nav-links-wrap .nav-link.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.04);
    }
    .nav-links-wrap .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 16px;
      height: 2px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }
    .btn-brand-solid {
      background: var(--brand-gradient);
      color: #0D0F12;
      font-weight: 700;
      font-size: 0.95rem;
      border: none;
      border-radius: 10px;
      padding: 10px 24px;
      box-shadow: 0 8px 20px var(--brand-glow);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .btn-brand-solid:hover {
      color: #000000;
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 184, 0, 0.4);
    }
    .btn-tactical-outline {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--tactical-border);
      color: var(--tactical-light);
      font-weight: 600;
      border-radius: 10px;
      padding: 10px 22px;
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }
    .btn-tactical-outline:hover {
      border-color: var(--brand-gold-1);
      color: #FFFFFF;
      background: rgba(255, 184, 0, 0.08);
    }
    .site-section {
      padding: 80px 0;
      position: relative;
    }
    .section-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.82rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--brand-gold-1);
      background: rgba(255, 184, 0, 0.08);
      border: 1px solid rgba(255, 184, 0, 0.22);
      padding: 5px 14px;
      border-radius: 20px;
      margin-bottom: 18px;
    }
    .section-tagline::before {
      content: '';
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--brand-gold-1);
      box-shadow: 0 0 8px var(--brand-gold-1);
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
      line-height: 1.28;
      letter-spacing: -0.02em;
    }
    .section-desc {
      color: var(--tactical-gray);
      font-size: 1.02rem;
      max-width: 820px;
      margin-bottom: 40px;
      line-height: 1.8;
    }
    .tactical-card {
      background: var(--card-base);
      border: 1px solid var(--tactical-border);
      border-radius: 20px;
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.65);
      position: relative;
      overflow: hidden;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .tactical-card:hover {
      border-color: var(--tactical-border-focus);
      box-shadow: 0 20px 42px -10px rgba(0, 0, 0, 0.8), 0 0 24px rgba(255, 184, 0, 0.12);
      transform: translateY(-4px);
    }
    .data-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--tactical-border);
      padding: 4px 12px;
      border-radius: 30px;
      font-size: 0.82rem;
      font-family: monospace;
      color: var(--tactical-light);
    }
    .pill-metric {
      color: var(--brand-gold-1);
      font-weight: 700;
    }
    .filter-pill {
      display: inline-block;
      padding: 8px 18px;
      border-radius: 24px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--tactical-gray);
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--tactical-border);
      transition: all 0.25s ease;
      cursor: pointer;
    }
    .filter-pill:hover {
      color: #FFFFFF;
      border-color: rgba(255, 184, 0, 0.3);
      background: rgba(255, 255, 255, 0.04);
    }
    .filter-pill.active {
      color: #0D0F12;
      background: var(--brand-gradient);
      border-color: transparent;
      box-shadow: 0 4px 16px var(--brand-glow);
    }
    .spec-table-tactical {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
    }
    .spec-table-tactical th {
      background: rgba(255, 255, 255, 0.03);
      color: var(--tactical-gray);
      font-size: 0.84rem;
      font-weight: 600;
      padding: 12px 16px;
      border-bottom: 1px solid var(--tactical-border);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .spec-table-tactical td {
      padding: 14px 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 0.9rem;
      color: var(--tactical-light);
    }
    .hud-radar-tag {
      position: absolute;
      top: 16px;
      right: 16px;
      font-family: monospace;
      font-size: 0.75rem;
      color: var(--brand-gold-1);
      background: rgba(255, 184, 0, 0.1);
      border: 1px solid rgba(255, 184, 0, 0.25);
      padding: 2px 8px;
      border-radius: 4px;
    }
    .step-num-badge {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: rgba(255, 184, 0, 0.12);
      border: 1px solid rgba(255, 184, 0, 0.3);
      color: var(--brand-gold-1);
      font-family: monospace;
      font-size: 1.1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .tactical-footer {
      background-color: #0A0C0E;
      border-top: 1px solid var(--tactical-border);
      padding: 80px 0 32px 0;
      position: relative;
    }
    .footer-brand-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: 0.04em;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--tactical-gray);
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: var(--brand-gold-1);
      padding-left: 4px;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      margin-top: 48px;
      font-size: 0.84rem;
      color: #64748B;
    }
    @media (max-width: 991px) {
      .section-title { font-size: 1.8rem; }
      .site-section { padding: 60px 0; }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}