/* roulang page: index */
:root {
            --bg-deep: #0B0E14;
            --bg-card: #0F1A2B;
            --bg-glass: rgba(15, 25, 45, 0.65);
            --cyan: #00E5FF;
            --cyan-dark: #0097A7;
            --gold: #FFB300;
            --purple: #7C4DFF;
            --orange: #FF6D00;
            --text-primary: #EDF2F9;
            --text-secondary: #B0BEC5;
            --text-muted: #6B7C8E;
            --border-cyan: rgba(0, 229, 255, 0.15);
            --border-cyan-bright: rgba(0, 229, 255, 0.4);
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-cyan: 0 0 20px rgba(0, 229, 255, 0.5);
            --shadow-cyan-soft: 0 0 40px rgba(0, 229, 255, 0.2);
            --radius-lg: 18px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --radius-pill: 50px;
            --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'Inter', sans-serif;
            --max-width: 1320px;
            --nav-height: 68px;
            --gap-section: 80px;
            --gap-card: 28px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::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-body);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
            background: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 50% 30%, rgba(0, 229, 255, 0.04) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 60%, rgba(124, 77, 255, 0.03) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 75%, rgba(255, 109, 0, 0.02) 0%, transparent 55%),
                linear-gradient(180deg, #0B0E14 0%, #0A1A2F 40%, #0B0E14 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;
            opacity: 0.03;
            background-image:
                repeating-linear-gradient(0deg, transparent, transparent 1px, rgba(0, 229, 255, 0.15) 1px, rgba(0, 229, 255, 0.15) 2px),
                repeating-linear-gradient(90deg, transparent, transparent 1px, rgba(0, 229, 255, 0.08) 1px, rgba(0, 229, 255, 0.08) 2px);
            background-size: 40px 40px;
            mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-size: 15px;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }

        /* ========== NAVIGATION ========== */
        .nav-bar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 14, 20, 0.78);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-bottom: 1px solid rgba(0, 229, 255, 0.1);
            transition: background var(--transition-normal);
        }

        .nav-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #00E5FF, #007B8A);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.35);
            flex-shrink: 0;
        }

        .nav-logo .logo-sub {
            font-size: 10px;
            font-weight: 400;
            color: var(--cyan);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            display: block;
            line-height: 1;
            margin-top: 1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.3px;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--cyan);
            border-radius: 2px;
            transition: width var(--transition-normal);
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: #fff;
        }
        .nav-links a:hover::after,
        .nav-links a:focus-visible::after {
            width: 100%;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #00E5FF, #0097A7);
            color: #fff !important;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.4px;
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.3);
            transition: all var(--transition-normal);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            box-shadow: 0 0 28px rgba(0, 229, 255, 0.55);
            transform: translateY(-1px);
            filter: brightness(1.1);
        }
        .nav-cta-btn:active {
            transform: scale(0.96);
        }

        .nav-cta-btn::after {
            display: none !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px 4px;
            z-index: 1001;
            background: transparent;
            border: none;
            width: 36px;
            height: 30px;
            justify-content: center;
            align-items: center;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(8, 10, 16, 0.95);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 36px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal);
        }

        .mobile-menu-panel.open {
            opacity: 1;
            pointer-events: all;
        }
        .mobile-menu-panel a {
            font-family: var(--font-heading);
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 1px;
            position: relative;
            padding-left: 18px;
            transition: color var(--transition-fast);
        }
        .mobile-menu-panel a::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--cyan);
            border-radius: 3px;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .mobile-menu-panel a:hover,
        .mobile-menu-panel a:focus-visible {
            color: var(--cyan);
        }
        .mobile-menu-panel a:hover::before,
        .mobile-menu-panel a:focus-visible::before {
            opacity: 1;
        }
        .mobile-menu-panel .mobile-cta {
            margin-top: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #00E5FF, #0097A7);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.45);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            padding-top: calc(var(--nav-height) + 40px);
            padding-bottom: 60px;
            position: relative;
            z-index: 1;
        }

        .hero-section .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 179, 0, 0.12);
            border: 1px solid rgba(255, 179, 0, 0.3);
            border-radius: var(--radius-pill);
            padding: 7px 16px;
            font-size: 12px;
            font-weight: 600;
            color: var(--gold);
            letter-spacing: 1px;
            width: fit-content;
            text-transform: uppercase;
        }
        .hero-badge .dot-pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 179, 0, 0.7);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(255, 179, 0, 0);
            }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin: 0;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #00E5FF, #00B8D4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 460px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 6px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #00E5FF, #0097A7);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.4px;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
            transition: all var(--transition-normal);
            border: none;
            font-family: var(--font-heading);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }
        .btn-primary::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
            opacity: 0;
            transition: opacity var(--transition-fast);
            border-radius: var(--radius-pill);
        }
        .btn-primary:hover {
            box-shadow: 0 0 32px rgba(0, 229, 255, 0.6);
            transform: translateY(-2px);
        }
        .btn-primary:hover::before {
            opacity: 1;
        }
        .btn-primary:active {
            transform: scale(0.96);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--cyan);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.4px;
            cursor: pointer;
            border: 1.5px solid rgba(0, 229, 255, 0.5);
            transition: all var(--transition-normal);
            font-family: var(--font-heading);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(0, 229, 255, 0.08);
            border-color: var(--cyan);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.25);
        }
        .btn-secondary:active {
            transform: scale(0.96);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 3px;
        }

        .hero-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            position: relative;
        }

        .hero-right::before {
            content: '';
            position: absolute;
            inset: -40px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            border-radius: 24px;
            opacity: 0.28;
            z-index: -1;
            filter: blur(2px) brightness(0.7);
            pointer-events: none;
        }

        .data-card {
            background: rgba(15, 25, 45, 0.7);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .data-card:hover {
            border-color: var(--border-cyan-bright);
            box-shadow: 0 0 22px rgba(0, 229, 255, 0.2);
            transform: translateY(-3px);
        }
        .data-card .data-label {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .data-card .data-value {
            font-family: var(--font-mono);
            font-size: 42px;
            font-weight: 800;
            color: var(--cyan);
            line-height: 1;
            text-shadow: 0 0 18px rgba(0, 229, 255, 0.5), 0 0 40px rgba(0, 229, 255, 0.2);
            letter-spacing: -1px;
        }
        .data-card .data-unit {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-secondary);
            margin-left: 2px;
        }
        .data-card .data-sub {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .data-card .accent-line {
            position: absolute;
            left: 0;
            top: 14px;
            bottom: 14px;
            width: 3px;
            background: var(--cyan);
            border-radius: 0 3px 3px 0;
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
        }
        .data-card.has-accent {
            padding-left: 22px;
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--gap-section) 0;
            position: relative;
            z-index: 1;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.4px;
            margin: 0 0 10px 0;
        }
        .section-header .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto;
            line-height: 1.5;
        }

        /* ========== SERVICES SECTION ========== */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: var(--gap-card);
        }

        .service-card {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: 30px 24px 28px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
            min-height: 260px;
        }
        .service-card:hover {
            border-color: var(--border-cyan-bright);
            box-shadow: var(--shadow-card), 0 0 28px rgba(0, 229, 255, 0.15);
            transform: translateY(-6px);
        }
        .service-card.featured {
            grid-row: span 1;
            background: rgba(18, 28, 48, 0.75);
            border-color: rgba(0, 229, 255, 0.25);
        }
        .service-card .card-icon-zone {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            flex-shrink: 0;
        }
        .service-card .card-icon-zone.cyan-bg {
            background: rgba(0, 229, 255, 0.13);
            color: var(--cyan);
        }
        .service-card .card-icon-zone.gold-bg {
            background: rgba(255, 179, 0, 0.13);
            color: var(--gold);
        }
        .service-card .card-icon-zone.purple-bg {
            background: rgba(124, 77, 255, 0.13);
            color: var(--purple);
        }
        .service-card h3 {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.3px;
            margin: 0;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex-grow: 1;
        }
        .service-card .card-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--cyan);
            letter-spacing: 1px;
            padding: 4px 12px;
            border: 1px solid rgba(0, 229, 255, 0.3);
            border-radius: var(--radius-pill);
            width: fit-content;
            margin-top: auto;
        }
        .service-card .card-decor {
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .service-card .card-bg-thumb {
            position: absolute;
            bottom: 0;
            right: 0;
            width: 90px;
            height: 90px;
            opacity: 0.07;
            border-radius: 12px;
            background-size: cover;
            background-position: center;
            pointer-events: none;
        }

        /* ========== COMPARISON SECTION ========== */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }

        .comp-panel {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            border: 1px solid var(--border-cyan);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .comp-panel:hover {
            border-color: var(--border-cyan-bright);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }
        .comp-panel.panel-purple {
            border-left: 4px solid var(--purple);
            border-top-color: rgba(124, 77, 255, 0.2);
            border-right-color: rgba(124, 77, 255, 0.2);
            border-bottom-color: rgba(124, 77, 255, 0.2);
        }
        .comp-panel.panel-orange {
            border-left: 4px solid var(--orange);
            border-top-color: rgba(255, 109, 0, 0.2);
            border-right-color: rgba(255, 109, 0, 0.2);
            border-bottom-color: rgba(255, 109, 0, 0.2);
        }
        .comp-panel .comp-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }
        .comp-panel .comp-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .comp-panel.panel-purple .comp-avatar {
            background: rgba(124, 77, 255, 0.2);
            color: var(--purple);
        }
        .comp-panel.panel-orange .comp-avatar {
            background: rgba(255, 109, 0, 0.2);
            color: var(--orange);
        }
        .comp-panel .comp-name {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 18px;
            color: #fff;
        }
        .comp-panel .comp-tag {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }
        .comp-bar-group {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 16px;
        }
        .comp-bar-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .comp-bar-item .bar-label-row {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .comp-bar-item .bar-track {
            height: 8px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }
        .comp-bar-item .bar-fill {
            height: 100%;
            border-radius: 4px;
            transition: width 0.6s ease;
        }
        .panel-purple .bar-fill {
            background: linear-gradient(90deg, #7C4DFF, #9D7BFF);
            box-shadow: 0 0 8px rgba(124, 77, 255, 0.4);
        }
        .panel-orange .bar-fill {
            background: linear-gradient(90deg, #FF6D00, #FF9A40);
            box-shadow: 0 0 8px rgba(255, 109, 0, 0.4);
        }
        .comp-win-rate {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 8px;
        }
        .win-ring {
            width: 72px;
            height: 72px;
            flex-shrink: 0;
        }
        .win-ring text {
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 18px;
        }
        .win-rate-text {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 800;
        }
        .panel-purple .win-rate-text {
            color: var(--purple);
        }
        .panel-orange .win-rate-text {
            color: var(--orange);
        }

        .comp-insight {
            text-align: center;
            margin-top: 28px;
            padding: 16px 20px;
            background: rgba(0, 229, 255, 0.05);
            border-radius: var(--radius-sm);
            border: 1px dashed rgba(0, 229, 255, 0.2);
        }
        .comp-insight p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 8px 0;
        }
        .comp-insight .btn-primary {
            font-size: 14px;
            padding: 10px 24px;
        }

        /* ========== DOWNLOAD ENTRY SECTION ========== */
        .download-cards {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: var(--gap-card);
        }

        .download-card {
            background: var(--bg-glass);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .download-card:hover {
            border-color: var(--border-cyan-bright);
            box-shadow: var(--shadow-card), 0 0 24px rgba(0, 229, 255, 0.12);
            transform: translateY(-6px);
        }
        .download-card .card-ribbon {
            position: absolute;
            top: 16px;
            right: -28px;
            background: var(--gold);
            color: #0B0E14;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 3px 32px;
            transform: rotate(45deg);
            z-index: 2;
        }
        .download-card h3 {
            font-family: var(--font-heading);
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin: 0;
            letter-spacing: 0.3px;
        }
        .download-card .card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            margin: 0;
        }
        .download-card .card-highlight-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--gold);
            text-shadow: 0 0 14px rgba(255, 179, 0, 0.35);
        }
        .download-card .card-btn-row {
            margin-top: auto;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .download-card .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: all var(--transition-normal);
            font-family: var(--font-heading);
            border: none;
        }
        .download-card .btn-sm-primary {
            background: linear-gradient(135deg, #00E5FF, #0097A7);
            color: #fff;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
        }
        .download-card .btn-sm-primary:hover {
            box-shadow: 0 0 22px rgba(0, 229, 255, 0.5);
            transform: translateY(-1px);
        }
        .download-card .btn-sm-outline {
            background: transparent;
            border: 1.5px solid rgba(0, 229, 255, 0.5);
            color: var(--cyan);
        }
        .download-card .btn-sm-outline:hover {
            background: rgba(0, 229, 255, 0.08);
            border-color: var(--cyan);
        }

        /* ========== FAQ SECTION ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--border-cyan-bright);
        }
        .faq-item.active {
            border-color: var(--border-cyan-bright);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.12);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            font-family: var(--font-heading);
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.3px;
            user-select: none;
            transition: color var(--transition-fast);
        }
        .faq-item.active .faq-question {
            color: var(--cyan);
        }
        .faq-q-badge {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: rgba(255, 179, 0, 0.15);
            color: var(--gold);
            font-weight: 800;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: 0;
        }
        .faq-arrow {
            margin-left: auto;
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px 62px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            border-left: 3px solid var(--cyan);
            margin-left: 30px;
            border-radius: 0 0 0 2px;
        }

        /* ========== CTA SECTION ========== */
        .cta-card {
            max-width: 680px;
            margin: 0 auto;
            background: var(--bg-glass);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            box-shadow: 0 0 40px rgba(0, 229, 255, 0.08);
        }
        .cta-card h2 {
            font-family: var(--font-heading);
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px 0;
            letter-spacing: 0.4px;
        }
        .cta-card .cta-sub {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 22px 0;
        }
        .cta-form-row {
            display: flex;
            gap: 12px;
            max-width: 440px;
            margin: 0 auto 12px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: var(--radius-pill);
            background: rgba(15, 25, 45, 0.8);
            border: 1.5px solid rgba(0, 229, 255, 0.25);
            color: #fff;
            font-size: 15px;
            font-family: var(--font-body);
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
        }
        .cta-input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.2);
            outline: none;
            background: rgba(18, 28, 48, 0.9);
        }
        .cta-input::placeholder {
            color: var(--text-muted);
            font-size: 14px;
        }
        .cta-privacy {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.3px;
            margin: 0;
            line-height: 1.5;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            border-top: 1px solid rgba(0, 229, 255, 0.1);
            padding: 36px 0 24px;
            position: relative;
            z-index: 1;
        }
        .footer-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
            margin-bottom: 20px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 6px;
            max-width: 280px;
        }
        .footer-brand .nav-logo {
            margin-bottom: 4px;
        }
        .footer-brand .footer-tagline {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            list-style: none;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--cyan);
        }
        .footer-social {
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .footer-social .social-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(0, 229, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 15px;
            cursor: default;
            transition: all var(--transition-fast);
        }
        .footer-social .social-icon:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
        }
        .footer-bottom {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.3px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-bottom a {
            color: var(--cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* =========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-section .container {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-right {
                grid-template-columns: 1fr 1fr;
                max-width: 560px;
                margin: 0 auto;
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
                max-width: 560px;
                margin: 0 auto;
            }
            .hero-title {
                font-size: 30px;
            }
            .data-card .data-value {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta-btn.desktop-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu-panel {
                display: flex;
            }
            .hero-section {
                padding-top: calc(var(--nav-height) + 24px);
                padding-bottom: 36px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-right {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-card {
                padding: 14px 12px;
            }
            .data-card .data-value {
                font-size: 28px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .download-cards {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .cta-card {
                padding: 28px 18px;
            }
            .cta-card h2 {
                font-size: 21px;
            }
            .footer-inner {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .footer-social {
                justify-content: center;
            }
            .comp-win-rate {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero-title {
                font-size: 22px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-right {
                grid-template-columns: 1fr;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                width: 100%;
                justify-content: center;
                min-height: 48px;
            }
            .btn-primary,
            .btn-secondary {
                min-height: 48px;
                font-size: 14px;
                padding: 12px 22px;
            }
            .cta-form-row {
                flex-direction: column;
                width: 100%;
            }
            .cta-input {
                width: 100%;
                min-height: 48px;
            }
            .cta-form-row .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .data-card .data-value {
                font-size: 26px;
            }
            .nav-logo {
                font-size: 16px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 7px;
            }
            .section {
                padding: 48px 0;
            }
            .comp-panel {
                padding: 20px 16px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 14px;
            }
            .faq-answer-inner {
                padding: 0 14px 14px 40px;
                margin-left: 20px;
                font-size: 13px;
            }
            .download-card {
                padding: 20px 16px;
            }
            .download-card h3 {
                font-size: 16px;
            }
            .service-card {
                padding: 22px 18px;
                min-height: auto;
            }
        }

        /* Accessibility */
        :focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.7);
            outline-offset: 3px;
            border-radius: 2px;
        }