/* roulang page: index */
:root {
            --bg-deep: #070C1B;
            --bg-dark: #0E1A2B;
            --bg-card: rgba(15, 25, 45, 0.5);
            --cyan: #00F0FF;
            --cyan-dim: rgba(0, 240, 255, 0.15);
            --cyan-mid: rgba(0, 240, 255, 0.35);
            --cyan-bright: rgba(0, 240, 255, 0.6);
            --gold: #FFB000;
            --gold-dim: rgba(255, 176, 0, 0.3);
            --gold-bright: rgba(255, 176, 0, 0.7);
            --text-primary: #E8EDF5;
            --text-secondary: #B0C5DA;
            --text-muted: #6B8299;
            --border-subtle: rgba(0, 240, 255, 0.12);
            --border-hover: rgba(0, 240, 255, 0.35);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 8px 32px rgba(0, 240, 255, 0.08);
            --shadow-card-hover: 0 16px 48px rgba(0, 240, 255, 0.18);
            --shadow-gold: 0 8px 40px rgba(255, 176, 0, 0.2);
            --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', 'Monaco', monospace;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --section-pad: 100px;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            background: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 15% 20%, rgba(0, 180, 220, 0.04) 0%, transparent 60%),
                radial-gradient(ellipse at 75% 60%, rgba(0, 200, 240, 0.03) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 85%, rgba(255, 176, 0, 0.03) 0%, transparent 50%),
                linear-gradient(180deg, var(--bg-deep) 0%, #0C1525 40%, #0E1A2B 70%, var(--bg-deep) 100%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            pointer-events: none;
            z-index: 0;
            background-image:
                repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 240, 255, 0.008) 2px, rgba(0, 240, 255, 0.008) 3px),
                repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0, 240, 255, 0.006) 2px, rgba(0, 240, 255, 0.006) 3px);
            animation: bgDrift 40s linear infinite;
            opacity: 0.6;
        }

        @keyframes bgDrift {
            0% {
                transform: translate(0, 0);
            }
            25% {
                transform: translate(2px, -1px);
            }
            50% {
                transform: translate(0, -2px);
            }
            75% {
                transform: translate(-2px, -1px);
            }
            100% {
                transform: translate(0, 0);
            }
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
        }
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(7, 12, 27, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--cyan-dim);
            transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
        }
        .nav.scrolled {
            background: rgba(7, 12, 27, 0.95);
            border-bottom-color: var(--cyan-mid);
            box-shadow: 0 4px 24px rgba(0, 240, 255, 0.1);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            z-index: 1002;
        }
        .nav-logo-icon {
            position: relative;
            width: 32px;
            height: 32px;
            flex-shrink: 0;
        }
        .nav-logo-diamond {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 16px;
            height: 16px;
            background: var(--cyan);
            transform: translate(-50%, -50%) rotate(45deg);
            border-radius: 3px;
            animation: logoPulse 2.2s ease-in-out infinite;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.7), 0 0 28px rgba(0, 240, 255, 0.35);
        }
        @keyframes logoPulse {
            0%,
            100% {
                box-shadow: 0 0 14px rgba(0, 240, 255, 0.7), 0 0 28px rgba(0, 240, 255, 0.35);
            }
            50% {
                box-shadow: 0 0 22px rgba(0, 240, 255, 0.95), 0 0 40px rgba(0, 240, 255, 0.55);
            }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 0;
            letter-spacing: 0.3px;
            transition: color 0.25s ease;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--cyan);
            border-radius: 1px;
            transition: width 0.3s ease;
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--cyan);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #7DFFA0;
            white-space: nowrap;
            font-weight: 500;
            letter-spacing: 0.4px;
        }
        .nav-status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4DFF6E;
            animation: breathe 1.6s ease-in-out infinite;
            box-shadow: 0 0 10px rgba(77, 255, 110, 0.7);
        }
        @keyframes breathe {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.35;
                transform: scale(1.6);
            }
        }
        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1002;
            background: none;
            border: none;
            padding: 8px 4px;
        }
        .nav-hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }
        .nav-mobile-panel {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(7, 12, 27, 0.97);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            z-index: 1001;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 36px;
        }
        .nav-mobile-panel.active {
            display: flex;
        }
        .nav-mobile-panel a {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 1px;
            transition: color 0.25s ease;
        }
        .nav-mobile-panel a:hover {
            color: var(--cyan);
        }
        .nav-mobile-close {
            position: absolute;
            top: 28px;
            right: 28px;
            font-size: 28px;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            z-index: 1003;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 120px 24px 80px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            filter: saturate(0.6) brightness(0.5);
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 12, 27, 0.75) 0%, rgba(7, 12, 27, 0.55) 40%, rgba(14, 26, 43, 0.7) 70%, rgba(7, 12, 27, 0.9) 100%);
            z-index: 1;
        }
        .hero-canvas {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--cyan-dim);
            border-radius: 30px;
            padding: 8px 20px;
            font-size: 13px;
            color: var(--cyan);
            letter-spacing: 1px;
            font-weight: 500;
            margin-bottom: 28px;
            animation: fadeInUp 0.7s ease forwards;
        }
        .hero-badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--cyan);
            animation: breathe 1.4s ease-in-out infinite;
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.8);
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: 1px;
            animation: fadeInUp 0.7s ease 0.15s forwards;
            opacity: 0;
        }
        .hero h1 .cyan-accent {
            color: var(--cyan);
            text-shadow: 0 0 40px rgba(0, 240, 255, 0.5);
        }
        .hero h1 .gold-accent {
            color: var(--gold);
            text-shadow: 0 0 30px rgba(255, 176, 0, 0.4);
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            animation: fadeInUp 0.7s ease 0.3s forwards;
            opacity: 0;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
            animation: fadeInUp 0.7s ease 0.45s forwards;
            opacity: 0;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.5px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: linear-gradient(135deg, #00F0FF 0%, #0a5c8a 100%);
            color: #05101D;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.4), 0 4px 18px rgba(0, 180, 220, 0.25);
            border: none;
            animation: btnGlowPulse 3s ease-in-out infinite;
        }
        @keyframes btnGlowPulse {
            0%,
            100% {
                box-shadow: 0 0 28px rgba(0, 240, 255, 0.4), 0 4px 18px rgba(0, 180, 220, 0.25);
            }
            50% {
                box-shadow: 0 0 44px rgba(0, 240, 255, 0.65), 0 6px 26px rgba(0, 220, 255, 0.4);
            }
        }
        .btn-primary:hover {
            transform: scale(1.05);
            box-shadow: 0 0 52px rgba(0, 240, 255, 0.75), 0 8px 30px rgba(0, 220, 255, 0.5);
        }
        .btn-primary::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -120%;
            width: 60%;
            height: 220%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
            transform: rotate(25deg);
            animation: btnShine 2.8s ease-in-out infinite;
        }
        @keyframes btnShine {
            0% {
                left: -120%;
            }
            40% {
                left: 140%;
            }
            100% {
                left: 140%;
            }
        }
        .btn-secondary {
            background: transparent;
            border: 1.5px solid var(--cyan-mid);
            color: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.1);
        }
        .btn-secondary:hover {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.35);
            transform: translateY(-2px);
            background: rgba(0, 240, 255, 0.04);
        }
        .hero-update {
            position: absolute;
            bottom: 40px;
            right: 40px;
            z-index: 3;
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--cyan);
            background: rgba(7, 12, 27, 0.7);
            border: 1px solid var(--cyan-dim);
            border-radius: 20px;
            padding: 8px 18px;
            letter-spacing: 0.5px;
            animation: fadeInUp 0.7s ease 0.6s forwards;
            opacity: 0;
        }
        .hero-update span {
            color: var(--gold);
            font-weight: 700;
            font-size: 18px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-pad) 24px;
            position: relative;
            z-index: 1;
        }
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            margin-bottom: 14px;
            display: inline-block;
            position: relative;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--cyan);
            border-radius: 2px;
            box-shadow: 0 0 14px rgba(0, 240, 255, 0.6);
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ========== SERVICES ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .service-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--cyan-dim);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.05);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .service-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 0;
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, transparent 40%, rgba(0, 240, 255, 0.04) 40%, rgba(0, 240, 255, 0.06) 100%);
            border-radius: 0 0 var(--radius-lg) 0;
            pointer-events: none;
        }
        .service-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover), inset 0 1px 0 rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .service-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(0, 240, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--cyan);
            margin-bottom: 18px;
            transition: all 0.35s ease;
            border: 1px solid rgba(0, 240, 255, 0.12);
        }
        .service-card:hover .service-card-icon {
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.4);
            background: rgba(0, 240, 255, 0.14);
            border-color: var(--cyan-mid);
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.4px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== STATS ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(15, 25, 45, 0.35);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            position: relative;
            transition: all 0.35s ease;
        }
        .stat-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
        }
        .stat-bar {
            position: absolute;
            left: 50%;
            top: 18px;
            transform: translateX(-50%);
            width: 3px;
            height: 36px;
            background: var(--cyan);
            border-radius: 2px;
            opacity: 0.5;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: 64px;
            font-weight: 700;
            background: linear-gradient(180deg, #FFD060 0%, #FFB000 50%, #D48900 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            color: transparent;
            line-height: 1.1;
            margin-top: 16px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 8px;
            letter-spacing: 0.5px;
            font-weight: 500;
        }

        /* ========== CASES ========== */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
            align-items: center;
        }
        .case-logo {
            aspect-ratio: 3/2;
            background: rgba(15, 25, 45, 0.4);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            transition: all 0.4s ease;
            filter: grayscale(0.7) brightness(0.7);
        }
        .case-logo:hover {
            filter: grayscale(0) brightness(1);
            border-color: var(--border-hover);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.25);
            transform: translateY(-3px);
        }
        .case-logo img {
            width: 70%;
            height: 70%;
            object-fit: contain;
            opacity: 0.8;
            transition: opacity 0.35s ease;
        }
        .case-logo:hover img {
            opacity: 1;
        }

        /* ========== PLANS ========== */
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            max-width: 1050px;
            margin: 0 auto;
            align-items: stretch;
        }
        .plan-card {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--cyan-dim);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.05);
            transition: all 0.4s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .plan-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .plan-card.featured {
            border-color: var(--gold-bright);
            box-shadow: var(--shadow-gold), inset 0 1px 0 rgba(255, 255, 255, 0.06);
            transform: translateY(-12px);
            z-index: 2;
        }
        .plan-card.featured::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20px;
            right: 20px;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            border-radius: 0 0 6px 6px;
            box-shadow: 0 0 16px rgba(255, 176, 0, 0.6);
        }
        .plan-badge {
            display: inline-block;
            background: var(--gold);
            color: #1a0a00;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.6px;
            align-self: center;
            margin-bottom: 16px;
            box-shadow: 0 0 14px rgba(255, 176, 0, 0.35);
        }
        .plan-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            text-align: center;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .plan-price {
            text-align: center;
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--cyan);
            margin-bottom: 20px;
        }
        .plan-price small {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }
        .plan-features {
            list-style: none;
            flex: 1;
            margin-bottom: 24px;
        }
        .plan-features li {
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .plan-features li i {
            color: #4DFF6E;
            font-size: 13px;
            flex-shrink: 0;
        }
        .plan-card .btn {
            align-self: center;
            width: 100%;
            justify-content: center;
        }
        .plan-card.featured .btn {
            background: linear-gradient(135deg, #FFB000 0%, #E89900 100%);
            color: #1a0a00;
            box-shadow: 0 0 24px rgba(255, 176, 0, 0.4);
            border: none;
        }
        .plan-card.featured .btn:hover {
            box-shadow: 0 0 40px rgba(255, 176, 0, 0.65);
            transform: scale(1.04);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--cyan-dim);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.35s ease;
            box-shadow: var(--shadow-card);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-item.active {
            border-color: var(--cyan-mid);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            user-select: none;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--cyan);
            flex-shrink: 0;
            transition: all 0.4s ease;
            box-shadow: 0 0 6px rgba(0, 240, 255, 0.5);
        }
        .faq-item.active .faq-dot {
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.9), 0 0 40px rgba(0, 240, 255, 0.4);
            animation: dotPulseRing 1s ease-out;
        }
        @keyframes dotPulseRing {
            0% {
                box-shadow: 0 0 6px rgba(0, 240, 255, 0.5), 0 0 0 0 rgba(0, 240, 255, 0.6);
            }
            100% {
                box-shadow: 0 0 20px rgba(0, 240, 255, 0.9), 0 0 0 24px rgba(0, 240, 255, 0);
            }
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.45s ease;
            padding: 0 22px 0 46px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 220px;
            padding: 0 22px 18px 46px;
        }

        /* ========== CONTACT ========== */
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            max-width: 1000px;
            margin: 0 auto;
            align-items: start;
        }
        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .contact-form input,
        .contact-form textarea {
            background: rgba(15, 25, 45, 0.5);
            border: 1px solid var(--cyan-dim);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            color: var(--text-primary);
            font-size: 15px;
            transition: all 0.3s ease;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }
        .contact-form input:focus,
        .contact-form textarea:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 16px rgba(0, 240, 255, 0.25);
            outline: none;
            background: rgba(15, 25, 45, 0.7);
        }
        .contact-form textarea {
            resize: vertical;
            min-height: 110px;
        }
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
            padding: 28px;
            background: rgba(15, 25, 45, 0.35);
            border: 1px solid var(--cyan-dim);
            border-radius: var(--radius-lg);
        }
        .contact-info h4 {
            font-size: 18px;
            color: var(--text-primary);
            font-weight: 600;
        }
        .contact-online {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #7DFFA0;
            font-weight: 500;
        }
        .contact-online-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #4DFF6E;
            animation: breathe 1.4s ease-in-out infinite;
            box-shadow: 0 0 12px rgba(77, 255, 110, 0.7);
        }
        .contact-phone {
            font-family: var(--font-mono);
            font-size: 22px;
            color: var(--cyan);
            font-weight: 600;
            letter-spacing: 1px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: rgba(7, 12, 27, 0.9);
            border-top: 1px solid var(--cyan-dim);
            padding: 36px 24px;
            position: relative;
            z-index: 1;
        }
        .footer-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }
        .footer-left {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-logo {
            font-weight: 700;
            font-size: 18px;
            color: var(--text-primary);
            letter-spacing: 0.4px;
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-right {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-right a {
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .footer-right a:hover {
            color: var(--cyan);
        }
        .footer-icp {
            font-size: 12px;
            color: var(--text-muted);
            width: 100%;
            text-align: center;
            margin-top: 10px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 70px;
            }
            .hero h1 {
                font-size: 36px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stat-number {
                font-size: 48px;
            }
            .plans-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 16px;
            }
            .plan-card {
                padding: 24px 18px;
            }
            .cases-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .contact-wrapper {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 50px;
                --nav-height: 60px;
            }
            .nav-links,
            .nav-status {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-mobile-panel {
                display: none;
            }
            .nav-mobile-panel.active {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding: 100px 20px 60px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-update {
                bottom: 20px;
                right: 16px;
                font-size: 12px;
                padding: 6px 14px;
            }
            .hero-update span {
                font-size: 15px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 14px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 40px;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .plans-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .plan-card.featured {
                transform: translateY(0);
            }
            .plan-card.featured::before {
                left: 10px;
                right: 10px;
            }
            .contact-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-left {
                justify-content: center;
            }
            .footer-right {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 24px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 34px;
            }
            .stat-bar {
                height: 24px;
                top: 12px;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .nav-logo {
                font-size: 16px;
            }
            .nav-logo-icon {
                width: 26px;
                height: 26px;
            }
            .nav-logo-diamond {
                width: 12px;
                height: 12px;
            }
        }