/* roulang page: index */
:root {
            --bg-primary: #0D0D12;
            --bg-card: #14141B;
            --bg-card-alt: #1A1A24;
            --bg-nav: rgba(13, 13, 18, 0.85);
            --accent: #FF5E17;
            --accent-bright: #FF7A3D;
            --accent-neon: #1EFFBC;
            --text-primary: #F0F0F5;
            --text-secondary: #8888A0;
            --text-muted: #5E5E72;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-card: rgba(255, 255, 255, 0.08);
            --gradient-cta: linear-gradient(135deg, #FF5E17 0%, #FF3A8C 100%);
            --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.6);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.75);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-pill: 100px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-h1: 48px;
            --font-h2: 36px;
            --font-h3: 22px;
            --font-body: 16px;
            --font-small: 14px;
            --max-width: 1200px;
            --header-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-height);
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: var(--font-body);
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        input {
            font-family: inherit;
            outline: none;
        }

        /* Container */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Skip link */
        .skip-link {
            position: absolute;
            top: -100px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            z-index: 10001;
            font-weight: 600;
            transition: top var(--transition-fast);
        }
        .skip-link:focus {
            top: 16px;
        }

        /* ========== HEADER / NAV ========== */
        #header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: var(--bg-nav);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth);
        }
        #header.scrolled {
            background: rgba(13, 13, 18, 0.95);
            border-bottom-color: rgba(255, 255, 255, 0.1);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            white-space: nowrap;
            z-index: 1001;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--gradient-cta);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            color: #fff;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: var(--font-small);
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: transform var(--transition-fast);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent);
        }
        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .nav-links a:hover {
            background: rgba(255, 94, 23, 0.06);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
            cursor: pointer;
            width: 40px;
            height: 32px;
            justify-content: center;
            align-items: center;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: var(--transition-smooth);
            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 nav drawer */
        .mobile-nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-overlay a {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent);
            background: rgba(255, 94, 23, 0.08);
        }

        /* ========== HERO ========== */
        #hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 100px 0 60px;
            background-color: var(--bg-primary);
        }
        #hero .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.35;
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 40%, rgba(0, 0, 0, 0.4) 70%, rgba(0, 0, 0, 0.2) 100%);
            -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.7) 40%, rgba(0, 0, 0, 0.4) 70%, rgba(0, 0, 0, 0.2) 100%);
        }
        #hero .hero-grid-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        #hero .hero-glow {
            position: absolute;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 94, 23, 0.12) 0%, transparent 70%);
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 0;
            pointer-events: none;
            animation: heroGlowPulse 6s ease-in-out infinite;
        }
        @keyframes heroGlowPulse {
            0%,
            100% {
                transform: translate(-50%, -50%) scale(1);
                opacity: 0.6;
            }
            50% {
                transform: translate(-50%, -50%) scale(1.3);
                opacity: 1;
            }
        }
        #hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }
        #hero .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 94, 23, 0.12);
            border: 1px solid rgba(255, 94, 23, 0.25);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
            animation: fadeInUp 0.7s ease forwards;
        }
        #hero h1 {
            font-size: var(--font-h1);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: var(--text-primary);
            animation: fadeInUp 0.7s ease 0.1s forwards;
            opacity: 0;
        }
        #hero h1 .char {
            display: inline-block;
            opacity: 0;
            transform: translateY(20px);
            animation: charReveal 0.5s ease forwards;
        }
        @keyframes charReveal {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        #hero .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 36px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
            animation: fadeInUp 0.7s ease 0.25s forwards;
            opacity: 0;
        }
        #hero .hero-cta-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 0.7s ease 0.35s forwards;
            opacity: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: var(--gradient-cta);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: filter var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 94, 23, 0.3);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            filter: brightness(1.12);
            box-shadow: 0 6px 24px rgba(255, 94, 23, 0.45);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: transparent;
            color: var(--accent);
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent);
            cursor: pointer;
            transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .btn-outline:hover {
            background: rgba(255, 94, 23, 0.1);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 600;
            font-size: 15px;
            background: none;
            border: none;
            cursor: pointer;
            transition: text-shadow var(--transition-fast), gap var(--transition-fast);
            text-decoration: none;
        }
        .btn-text .arrow {
            transition: transform var(--transition-fast);
        }
        .btn-text:hover {
            text-shadow: 0 0 12px rgba(255, 94, 23, 0.6);
            gap: 10px;
        }
        .btn-text:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== SECTIONS ========== */
        section {
            padding: 80px 0;
            position: relative;
        }
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: var(--font-h2);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .section-desc {
            font-size: var(--font-body);
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 40px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== PAIN POINT ========== */
        #pain-point {
            background: var(--bg-primary);
        }
        #pain-point .pain-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        #pain-point .pain-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 16 / 10;
            background: var(--bg-card-alt);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        #pain-point .pain-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        #pain-point .pain-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        #pain-point .pain-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: var(--font-body);
            color: var(--text-secondary);
            line-height: 1.6;
            padding: 14px 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: border-color var(--transition-fast);
        }
        #pain-point .pain-list li:hover {
            border-color: rgba(255, 94, 23, 0.3);
        }
        #pain-point .pain-list .pain-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 94, 23, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent);
            font-weight: 700;
        }

        /* ========== SOLUTION ========== */
        #solution {
            background: var(--bg-card-alt);
        }
        #solution .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        #solution .solution-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        #solution .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-cta);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        #solution .solution-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 94, 23, 0.25);
        }
        #solution .solution-card:hover::before {
            opacity: 1;
        }
        #solution .solution-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(30, 255, 188, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            border: 1px solid rgba(30, 255, 188, 0.2);
            color: var(--accent-neon);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        #solution .solution-card:hover .card-icon {
            border-color: var(--accent-neon);
            background: rgba(30, 255, 188, 0.1);
        }
        #solution .solution-card h3 {
            font-size: var(--font-h3);
            font-weight: 600;
            line-height: 1.3;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        #solution .solution-card p {
            font-size: var(--font-small);
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        #solution .solution-card .card-stat {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.01em;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }
        #solution .solution-card .card-stat .stat-suffix {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0;
        }

        /* ========== OUTCOME ========== */
        #outcome {
            background: var(--bg-primary);
            text-align: center;
        }
        #outcome .outcome-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        #outcome .outcome-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        #outcome .outcome-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        #outcome .outcome-number {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
            display: flex;
            align-items: baseline;
            justify-content: center;
            gap: 4px;
        }
        #outcome .outcome-number .suffix {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        #outcome .outcome-label {
            font-size: var(--font-small);
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== TESTIMONIALS ========== */
        #testimonials {
            background: var(--bg-card-alt);
        }
        #testimonials .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        #testimonials .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            border-left: 3px solid var(--accent);
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        #testimonials .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        #testimonials .testimonial-card .quote {
            font-size: var(--font-small);
            color: var(--text-primary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
            position: relative;
            padding-left: 4px;
        }
        #testimonials .testimonial-card .author-row {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        #testimonials .testimonial-card .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-card-alt);
            border: 1px solid var(--border-card);
            overflow: hidden;
            flex-shrink: 0;
        }
        #testimonials .testimonial-card .author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        #testimonials .testimonial-card .author-name {
            font-weight: 600;
            font-size: var(--font-small);
            color: var(--text-primary);
        }
        #testimonials .testimonial-card .author-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        #faq {
            background: var(--bg-primary);
        }
        #faq .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 760px;
            margin: 0 auto;
        }
        #faq .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        #faq .faq-item.open {
            background: var(--bg-card-alt);
            border-color: rgba(255, 94, 23, 0.2);
        }
        #faq .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: var(--font-body);
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        #faq .faq-question:hover {
            color: var(--accent);
        }
        #faq .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 94, 23, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--accent);
            transition: transform var(--transition-smooth), background var(--transition-smooth);
        }
        #faq .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 94, 23, 0.2);
        }
        #faq .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px 0 60px;
        }
        #faq .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 20px 60px;
        }
        #faq .faq-answer p {
            font-size: var(--font-small);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        #cta {
            background: var(--bg-card-alt);
            text-align: center;
            padding: 80px 0;
        }
        #cta .cta-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 48px 32px;
            max-width: 640px;
            margin: 0 auto;
            box-shadow: var(--shadow-card);
        }
        #cta .cta-card h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        #cta .cta-card p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            font-size: var(--font-body);
        }
        #cta .cta-form {
            display: flex;
            gap: 10px;
            max-width: 440px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        #cta .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 16px;
            background: var(--bg-primary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: var(--font-body);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        #cta .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 94, 23, 0.12);
            outline: none;
        }
        #cta .cta-form input::placeholder {
            color: var(--text-muted);
        }
        #cta .cta-form .btn-primary {
            flex-shrink: 0;
        }

        /* ========== CONTACT / FOOTER ========== */
        #contact {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0;
        }
        #contact .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        #contact .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-primary);
        }
        #contact .footer-copy {
            font-size: 13px;
            color: var(--text-muted);
        }
        #contact .footer-social {
            display: flex;
            gap: 12px;
            list-style: none;
        }
        #contact .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
        }
        #contact .footer-social a:hover {
            color: var(--accent);
            border-color: var(--accent);
            background: rgba(255, 94, 23, 0.06);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --font-h1: 36px;
                --font-h2: 28px;
                --font-h3: 20px;
            }
            section {
                padding: 56px 0;
            }
            #solution .solution-grid {
                grid-template-columns: 1fr 1fr;
            }
            #outcome .outcome-grid {
                grid-template-columns: 1fr 1fr;
            }
            #testimonials .testimonial-grid {
                grid-template-columns: 1fr 1fr;
            }
            #pain-point .pain-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            #pain-point .pain-image {
                order: -1;
                max-width: 480px;
                margin: 0 auto;
            }
            #hero h1 {
                font-size: 36px;
            }
            #hero .hero-subtitle {
                font-size: 16px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --font-h1: 30px;
                --font-h2: 24px;
                --font-h3: 18px;
                --header-height: 56px;
            }
            section {
                padding: 40px 0;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .container {
                padding: 0 16px;
            }
            #solution .solution-grid {
                grid-template-columns: 1fr;
            }
            #outcome .outcome-grid {
                grid-template-columns: 1fr 1fr;
            }
            #testimonials .testimonial-grid {
                grid-template-columns: 1fr;
            }
            #pain-point .pain-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            #hero {
                padding: 80px 0 40px;
                min-height: auto;
            }
            #hero h1 {
                font-size: 28px;
            }
            #hero .hero-subtitle {
                font-size: 15px;
            }
            #hero .hero-cta-group {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 13px 24px;
                font-size: 15px;
            }
            #cta .cta-card {
                padding: 28px 16px;
            }
            #cta .cta-card h2 {
                font-size: 22px;
            }
            #cta .cta-form {
                flex-direction: column;
            }
            #cta .cta-form input {
                min-width: auto;
                width: 100%;
            }
            #contact .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            #faq .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            #faq .faq-answer {
                padding: 0 16px 0 48px;
            }
            #faq .faq-item.open .faq-answer {
                padding: 0 16px 16px 48px;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-desc {
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --font-h1: 26px;
                --font-h2: 22px;
                --font-h3: 17px;
            }
            #outcome .outcome-grid {
                grid-template-columns: 1fr;
            }
            #outcome .outcome-number {
                font-size: 32px;
            }
            #hero h1 {
                font-size: 24px;
            }
            #hero .hero-subtitle {
                font-size: 14px;
            }
            .logo {
                font-size: 17px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
                border-radius: 6px;
            }
        }