/* roulang page: index */
:root {
            --primary: #FF4C15;
            --primary-hover: #E6390A;
            --primary-light: #FFF2EF;
            --secondary: #1A1A2E;
            --secondary-light: #2D2D3C;
            --gold: #E6B422;
            --bg-light: #F5F5F7;
            --white: #FFFFFF;
            --text: #2D2D3C;
            --text-light: #6B6B7B;
            --text-lighter: #9A9AAA;
            --border: rgba(0, 0, 0, 0.06);
            --border-light: rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 40px rgba(255, 76, 21, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-full: 100px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 32px;
            --spacing-xl: 48px;
            --spacing-2xl: 64px;
            --spacing-3xl: 80px;
            --spacing-4xl: 100px;
            --max-width: 1280px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.8;
            color: var(--text);
            background-color: var(--white);
            overflow-x: hidden;
            min-height: 100vh;
            -webkit-tap-highlight-color: transparent;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--secondary);
        }

        h1 {
            font-size: clamp(36px, 5vw, 54px);
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        h2 {
            font-size: clamp(28px, 3.8vw, 36px);
            font-weight: 800;
            letter-spacing: -0.02em;
        }
        h3 {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h4 {
            font-size: 18px;
            font-weight: 600;
        }

        p {
            max-width: 680px;
            color: var(--text);
        }
        .text-light {
            color: var(--text-light);
        }
        .text-lighter {
            color: var(--text-lighter);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section {
            padding-top: var(--spacing-3xl);
            padding-bottom: var(--spacing-3xl);
        }
        @media (min-width: 1024px) {
            .section {
                padding-top: var(--spacing-4xl);
                padding-bottom: var(--spacing-4xl);
            }
        }

        /* ========== NAVIGATION ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: background var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
            background: transparent;
            backdrop-filter: blur(0px);
            -webkit-backdrop-filter: blur(0px);
        }
        .header.scrolled {
            background: rgba(26, 26, 46, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: var(--spacing-lg);
        }
        @media (max-width: 1023px) {
            .header .container {
                height: 64px;
            }
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            white-space: nowrap;
            z-index: 1001;
            position: relative;
        }
        .header.scrolled .logo {
            color: #fff;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            flex-shrink: 0;
            position: relative;
        }
        .logo-icon svg {
            width: 100%;
            height: 100%;
        }
        @media (max-width: 767px) {
            .logo {
                font-size: 19px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
            }
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        @media (max-width: 1023px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 20px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition-base);
        }
        .nav-desktop a.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 600;
            background: var(--primary);
            color: #fff !important;
            transition: background var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
            margin-left: 4px;
        }
        .nav-cta-btn:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }
        @media (max-width: 1023px) {
            .nav-cta-btn {
                display: none;
            }
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            cursor: pointer;
            z-index: 1001;
            position: relative;
            gap: 5px;
            transition: background var(--transition-fast);
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.18);
        }
        @media (max-width: 1023px) {
            .hamburger {
                display: flex;
            }
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-base);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile nav */
        .mobile-nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(26, 26, 46, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-overlay nav {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        .mobile-nav-overlay a {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            background: rgba(255, 76, 21, 0.2);
            color: var(--primary);
        }
        .mobile-nav-overlay .mobile-cta {
            margin-top: 12px;
            background: var(--primary);
            color: #fff !important;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
        }
        .mobile-nav-overlay .mobile-cta:hover {
            background: var(--primary-hover) !important;
            color: #fff !important;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(140deg, #1A1A2E 0%, #2a1018 35%, #3D1522 55%, rgba(255, 76, 21, 0.18) 100%);
            overflow: hidden;
            padding-top: 80px;
        }
        @media (max-width: 767px) {
            .hero {
                min-height: auto;
                padding-top: 100px;
                padding-bottom: 60px;
            }
        }
        .hero .container {
            display: flex;
            align-items: center;
            gap: var(--spacing-3xl);
            position: relative;
            z-index: 2;
        }
        @media (max-width: 1023px) {
            .hero .container {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-xl);
            }
        }
        .hero-left {
            flex: 6;
            min-width: 0;
        }
        .hero-right {
            flex: 4;
            min-width: 0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        @media (max-width: 1023px) {
            .hero-left {
                flex: auto;
                width: 100%;
            }
            .hero-right {
                flex: auto;
                width: 100%;
                max-width: 480px;
            }
        }
        .hero h1 {
            color: #fff;
            margin-bottom: var(--spacing-md);
        }
        .hero h1 .highlight {
            color: var(--primary);
            display: inline;
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: var(--spacing-lg);
            max-width: 520px;
            line-height: 1.7;
        }
        @media (max-width: 1023px) {
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
                max-width: 400px;
            }
        }
        .hero-cta-group {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        @media (max-width: 1023px) {
            .hero-cta-group {
                justify-content: center;
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 16px;
            font-weight: 600;
            transition: all var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 76, 21, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-secondary-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary-outline:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }
        .btn:disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        .hero-image-wrapper {
            position: relative;
            width: 100%;
            aspect-ratio: 4/3;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
            animation: heroFloat 6s ease-in-out infinite;
        }
        @keyframes heroFloat {
            0%,
            100% {
                transform: translateY(0);
            }
            25% {
                transform: translateY(-8px);
            }
            75% {
                transform: translateY(4px);
            }
        }
        .hero-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
        }
        .hero-image-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(26, 26, 46, 0.5) 100%);
            pointer-events: none;
            border-radius: var(--radius-lg);
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            pointer-events: none;
            z-index: 1;
            overflow: hidden;
        }
        .hero-particles .particle {
            position: absolute;
            width: 3px;
            height: 3px;
            background: rgba(255, 255, 255, 0.4);
            border-radius: 50%;
            animation: particleDrift 12s linear infinite;
        }
        .hero-particles .particle:nth-child(odd) {
            width: 2px;
            height: 2px;
            animation-duration: 16s;
            background: rgba(255, 76, 21, 0.5);
        }
        @keyframes particleDrift {
            0% {
                transform: translateY(100vh) translateX(0);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-10vh) translateX(40px);
                opacity: 0;
            }
        }

        /* ========== FEATURES ========== */
        .features-section {
            background: var(--white);
        }
        .features-section .container {}
        .features-section .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }
        .features-section .section-header h2 {
            margin-bottom: var(--spacing-sm);
        }
        .features-section .section-header p {
            margin: 0 auto;
            color: var(--text-light);
            font-size: 17px;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        @media (max-width: 1023px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        .feature-card {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-md);
            background: var(--white);
            border-radius: var(--radius-md);
            padding: var(--spacing-xl) var(--spacing-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-base);
            cursor: default;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255, 76, 21, 0.15);
        }
        .feature-card .feature-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 76, 21, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            transition: all var(--transition-base);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card .feature-content h3 {
            margin-bottom: 6px;
            font-size: 19px;
        }
        .feature-card .feature-content p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CASES ========== */
        .cases-section {
            background: var(--bg-light);
        }
        .cases-section .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }
        .cases-section .section-header h2 {
            margin-bottom: var(--spacing-sm);
        }
        .cases-section .section-header p {
            margin: 0 auto;
            color: var(--text-light);
            font-size: 17px;
        }
        .cases-masonry {
            columns: 2;
            column-gap: 24px;
        }
        @media (max-width: 767px) {
            .cases-masonry {
                columns: 1;
            }
        }
        .case-card {
            break-inside: avoid;
            margin-bottom: 24px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }
        .case-card .case-image-wrap {
            position: relative;
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .case-card .case-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow), filter var(--transition-slow);
        }
        .case-card:hover .case-image-wrap img {
            transform: scale(1.04);
            filter: brightness(1.1) saturate(1.15);
        }
        .case-card .case-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 20px 16px;
            background: linear-gradient(180deg, transparent 0%, rgba(26, 26, 46, 0.75) 60%, rgba(26, 26, 46, 0.9) 100%);
            pointer-events: none;
        }
        .case-card .case-overlay h3 {
            color: #fff;
            font-size: 18px;
            margin-bottom: 4px;
        }
        .case-card .case-overlay span {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            font-weight: 500;
        }

        /* ========== SOLUTIONS COMPARISON ========== */
        .solutions-section {
            background: var(--white);
        }
        .solutions-section .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }
        .solutions-section .section-header h2 {
            margin-bottom: var(--spacing-sm);
        }
        .solutions-section .section-header p {
            margin: 0 auto;
            color: var(--text-light);
            font-size: 17px;
        }
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            max-width: 960px;
            margin: 0 auto;
        }
        @media (max-width: 767px) {
            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
        }
        .comparison-panel {
            border-radius: var(--radius-md);
            padding: var(--spacing-xl) var(--spacing-lg);
            border: 1px solid var(--border);
        }
        .comparison-panel.traditional {
            background: #f0f0f3;
            border-color: rgba(0, 0, 0, 0.05);
        }
        .comparison-panel.firefox {
            background: linear-gradient(160deg, #FFF6F2 0%, #FFF0EA 50%, #ffe8dd 100%);
            border-color: rgba(255, 76, 21, 0.2);
            box-shadow: 0 8px 30px rgba(255, 76, 21, 0.06);
        }
        .comparison-panel h3 {
            font-size: 20px;
            margin-bottom: var(--spacing-lg);
            text-align: center;
            padding-bottom: var(--spacing-md);
            border-bottom: 2px solid var(--border);
        }
        .comparison-panel.firefox h3 {
            color: var(--primary);
            border-bottom-color: rgba(255, 76, 21, 0.25);
        }
        .comparison-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .comparison-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            line-height: 1.6;
        }
        .comparison-list li .icon-check {
            color: #22c55e;
            font-size: 16px;
            flex-shrink: 0;
        }
        .comparison-list li .icon-cross {
            color: #ef4444;
            font-size: 16px;
            flex-shrink: 0;
        }
        .comparison-list li .icon-star {
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }
        .comparison-panel.traditional .comparison-list li {
            color: var(--text-light);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-section .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }
        .faq-section .section-header h2 {
            margin-bottom: var(--spacing-sm);
        }
        .faq-accordion {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }
        .faq-item.active {
            border-color: rgba(255, 76, 21, 0.2);
            box-shadow: 0 4px 20px rgba(255, 76, 21, 0.06);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 17px;
            font-weight: 600;
            color: var(--secondary);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-item.active .faq-question {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition-base);
            color: var(--text-light);
        }
        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 76, 21, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding-top: var(--spacing-3xl);
            padding-bottom: var(--spacing-3xl);
        }
        @media (min-width: 1024px) {
            .cta-section .container {
                padding-top: var(--spacing-4xl);
                padding-bottom: var(--spacing-4xl);
            }
        }
        .cta-section h2 {
            color: #fff;
            margin-bottom: var(--spacing-sm);
            font-size: clamp(26px, 3.5vw, 34px);
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            margin: 0 auto var(--spacing-lg);
            font-size: 17px;
        }
        .cta-section .btn-primary {
            font-size: 17px;
            padding: 16px 38px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: #141420;
            color: rgba(255, 255, 255, 0.7);
            padding-top: var(--spacing-3xl);
            padding-bottom: var(--spacing-lg);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: #fff;
            margin-bottom: var(--spacing-sm);
            font-size: 15px;
            font-weight: 700;
        }
        .footer-col p,
        .footer-col li {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-social-icons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-social-icons .social-icon-placeholder {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
            cursor: default;
        }
        .footer-social-icons .social-icon-placeholder:hover {
            background: rgba(255, 76, 21, 0.25);
            color: var(--primary);
        }
        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== RESPONSIVE FINE-TUNING ========== */
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .feature-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .feature-card .feature-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
                border-radius: 12px;
            }
            .feature-card .feature-content h3 {
                font-size: 17px;
            }
            .comparison-panel {
                padding: var(--spacing-md);
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }