/* ===== CSS Variables & Reset ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #1d3557;
            --accent: #f4a261;
            --gold: #e9c46a;
            --dark: #0a0a12;
            --dark-surface: #14141f;
            --dark-card: #1a1a2e;
            --light: #f8f9fa;
            --light-surface: #ffffff;
            --light-card: #f1f3f5;
            --text-light: #f0f0f0;
            --text-dark: #1a1a2e;
            --text-muted: #8888aa;
            --glass-bg: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.15);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --radius: 20px;
            --radius-sm: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1280px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--dark);
            color: var(--text-light);
            line-height: 1.7;
            transition: background 0.3s, color 0.3s;
            overflow-x: hidden;
        }

        body.light-mode {
            background: var(--light);
            color: var(--text-dark);
        }

        body.light-mode .glass-card {
            background: rgba(255, 255, 255, 0.7);
            border-color: rgba(0, 0, 0, 0.08);
            backdrop-filter: blur(12px);
        }

        body.light-mode .nav-links a {
            color: var(--text-dark);
        }

        body.light-mode .footer {
            background: var(--light-surface);
            border-top: 1px solid rgba(0, 0, 0, 0.06);
        }

        body.light-mode .hero-section {
            background: linear-gradient(135deg, #f8f0e6 0%, #e8d5c4 100%);
        }

        body.light-mode .hero-title {
            color: var(--secondary);
        }

        body.light-mode .hero-sub {
            color: #444;
        }

        body.light-mode .section-title {
            color: var(--secondary);
        }

        body.light-mode .blog-card,
        body.light-mode .case-card,
        body.light-mode .service-card,
        body.light-mode .advantage-item,
        body.light-mode .faq-item,
        body.light-mode .howto-step {
            background: var(--light-surface);
            color: var(--text-dark);
            border-color: rgba(0, 0, 0, 0.06);
        }

        body.light-mode .blog-card h3,
        body.light-mode .case-card h3,
        body.light-mode .service-card h3,
        body.light-mode .advantage-item h3 {
            color: var(--secondary);
        }

        body.light-mode .nav-links a:hover {
            color: var(--primary);
        }

        body.light-mode .breadcrumb a {
            color: var(--secondary);
        }

        body.light-mode .breadcrumb span {
            color: var(--text-muted);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--dark-surface);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 4px;
        }
        body.light-mode ::-webkit-scrollbar-track {
            background: #e0e0e0;
        }

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

        /* ===== Header ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 10, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        body.light-mode .header {
            background: rgba(255, 255, 255, 0.85);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-light);
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.5px;
        }

        body.light-mode .logo {
            color: var(--secondary);
        }

        .logo svg {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
        }

        .logo span {
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== Navigation ===== */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        body.light-mode .nav-links a {
            color: var(--text-dark);
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--gold);
            background: rgba(255, 255, 255, 0.06);
        }

        body.light-mode .nav-links a:hover,
        body.light-mode .nav-links a.active {
            background: rgba(0, 0, 0, 0.04);
            color: var(--primary);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: var(--transition);
            transform: translateX(-50%);
        }

        .nav-links a:hover::after {
            width: 60%;
        }

        /* ===== Mobile Menu ===== */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }

        body.light-mode .menu-toggle span {
            background: var(--text-dark);
        }

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

        /* ===== Theme Toggle ===== */
        .theme-toggle {
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 20px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: var(--transition);
            margin-left: 4px;
        }

        body.light-mode .theme-toggle {
            color: var(--text-dark);
        }

        .theme-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== Search ===== */
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 30px;
            padding: 4px 12px 4px 16px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
            margin-left: 8px;
        }

        body.light-mode .search-box {
            background: rgba(0, 0, 0, 0.04);
            border-color: rgba(0, 0, 0, 0.06);
        }

        .search-box:focus-within {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(233, 196, 106, 0.15);
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-light);
            font-size: 14px;
            padding: 6px 0;
            width: 120px;
            transition: var(--transition);
        }

        body.light-mode .search-box input {
            color: var(--text-dark);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box button {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 16px;
            padding: 4px 0 4px 8px;
            transition: var(--transition);
        }

        .search-box button:hover {
            color: var(--gold);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 16px 0 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--gold);
            text-decoration: none;
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb span {
            margin: 0 6px;
        }

        /* ===== Hero Banner ===== */
        .hero-section {
            padding: 120px 0 80px;
            background: linear-gradient(145deg, #0a0a18 0%, #1a0a1a 40%, #0d1a2a 100%);
            position: relative;
            overflow: hidden;
            min-height: 70vh;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 70%;
            height: 150%;
            background: radial-gradient(ellipse, rgba(230, 57, 70, 0.15), transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 50%;
            height: 100%;
            background: radial-gradient(ellipse, rgba(233, 196, 106, 0.08), transparent 60%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            animation: fadeUp 1s ease-out;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(233, 196, 106, 0.15);
            color: var(--gold);
            padding: 6px 20px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
            border: 1px solid rgba(233, 196, 106, 0.2);
        }

        .hero-title {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 30%, var(--gold) 70%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 30px;
            max-width: 520px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.4);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--gold), var(--accent));
            color: var(--dark);
        }

        .btn-gold:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 32px rgba(233, 196, 106, 0.3);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            animation: fadeUp 1.2s ease-out;
        }

        .hero-visual svg {
            width: 100%;
            max-width: 480px;
            height: auto;
            filter: drop-shadow(0 20px 60px rgba(230, 57, 70, 0.2));
        }

        /* ===== Section Styles ===== */
        .section {
            padding: 80px 0;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 12px;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .section-title .highlight {
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-sub {
            font-size: 17px;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header .section-sub {
            margin: 0 auto;
        }

        /* ===== Glass Card ===== */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius);
            padding: 28px 30px;
            transition: var(--transition);
            height: 100%;
        }

        .glass-card:hover {
            transform: translateY(-6px);
            border-color: rgba(233, 196, 106, 0.2);
            box-shadow: var(--shadow);
        }

        /* ===== Grid ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 30px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== Brand Intro ===== */
        .brand-section {
            background: var(--dark-surface);
        }

        body.light-mode .brand-section {
            background: var(--light-surface);
        }

        .brand-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .brand-text p {
            font-size: 16px;
            line-height: 2;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .brand-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 24px;
        }

        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.04);
        }

        body.light-mode .stat-item {
            background: rgba(0, 0, 0, 0.02);
            border-color: rgba(0, 0, 0, 0.04);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Services ===== */
        .service-card .icon {
            font-size: 36px;
            margin-bottom: 14px;
            display: block;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== Advantages ===== */
        .advantage-item {
            text-align: center;
            padding: 32px 24px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }

        .advantage-item:hover {
            transform: translateY(-4px);
            border-color: rgba(233, 196, 106, 0.15);
            background: rgba(255, 255, 255, 0.04);
        }

        .advantage-item .icon {
            font-size: 42px;
            margin-bottom: 14px;
            display: block;
        }
        .advantage-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .advantage-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Case / Blog Cards ===== */
        .case-card,
        .blog-card {
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: var(--transition);
        }

        .case-card:hover,
        .blog-card:hover {
            transform: translateY(-6px);
            border-color: rgba(233, 196, 106, 0.15);
            box-shadow: var(--shadow);
        }

        .case-card .img-wrap,
        .blog-card .img-wrap {
            width: 100%;
            aspect-ratio: 16/9;
            background: rgba(255, 255, 255, 0.03);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .case-card .img-wrap svg,
        .blog-card .img-wrap svg {
            width: 80%;
            height: 80%;
            object-fit: contain;
        }

        .case-card .body,
        .blog-card .body {
            padding: 20px 24px 24px;
        }

        .case-card .body h3,
        .blog-card .body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .case-card .body p,
        .blog-card .body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .case-card .body .tag,
        .blog-card .body .tag {
            display: inline-block;
            background: rgba(233, 196, 106, 0.12);
            color: var(--gold);
            font-size: 11px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }

        .blog-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
            display: flex;
            gap: 16px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(233, 196, 106, 0.1);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-question .icon {
            font-size: 20px;
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== HowTo ===== */
        .howto-steps {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .howto-step {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            padding: 28px 22px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .howto-step:hover {
            transform: translateY(-4px);
            border-color: rgba(233, 196, 106, 0.15);
        }

        .howto-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            color: var(--dark);
            font-weight: 900;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .howto-step h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }

        .howto-step p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--dark-surface);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 60px 0 30px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 12px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--gold);
        }

        .footer-qr {
            display: flex;
            gap: 20px;
            margin-top: 8px;
        }

        .footer-qr svg {
            width: 80px;
            height: 80px;
            background: #fff;
            border-radius: 8px;
            padding: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--gold);
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            font-size: 22px;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            z-index: 999;
        }

        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-top:hover {
            transform: translateY(-4px) scale(1.05);
            box-shadow: 0 8px 32px rgba(230, 57, 70, 0.4);
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(40px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-up {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 40px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .howto-steps {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                padding: 0 4px;
            }

            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10, 10, 18, 0.95);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                transform: translateY(-120%);
                transition: transform 0.4s ease;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }

            body.light-mode .nav-links {
                background: rgba(255, 255, 255, 0.95);
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                font-size: 15px;
            }

            .menu-toggle {
                display: flex;
            }

            .search-box input {
                width: 80px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-sub {
                font-size: 17px;
                margin: 0 auto 24px;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-visual svg {
                max-width: 300px;
            }

            .brand-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .brand-stats {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 12px;
            }

            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }

            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }

            .howto-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .section {
                padding: 50px 0;
            }

            .section-title {
                font-size: 28px;
            }

            .back-top {
                bottom: 16px;
                right: 16px;
                width: 42px;
                height: 42px;
                font-size: 18px;
            }

            .hero-section {
                padding: 100px 0 50px;
                min-height: auto;
            }

            .glass-card {
                padding: 20px;
            }

            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }

            .stat-number {
                font-size: 24px;
            }
        }

        @media (max-width: 480px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }

            .brand-stats {
                grid-template-columns: 1fr;
            }

            .hero-title {
                font-size: 26px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }

            .search-box input {
                width: 60px;
                font-size: 12px;
            }

            .container {
                padding: 0 16px;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 40px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }

        /* lazy load blur */
        .lazy {
            opacity: 0;
            transition: opacity 0.6s ease;
        }
        .lazy.loaded {
            opacity: 1;
        }

        /* Carousel */
        .carousel {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius);
        }

        .carousel-track {
            display: flex;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .carousel-slide {
            min-width: 100%;
            padding: 40px 30px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius);
            text-align: center;
        }

        .carousel-slide h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }

        .carousel-slide p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            max-width: 600px;
            margin: 0 auto;
        }

        .carousel-dots {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 20px;
        }

        .carousel-dots button {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            border: none;
            background: rgba(255, 255, 255, 0.15);
            cursor: pointer;
            transition: var(--transition);
        }

        .carousel-dots button.active {
            background: var(--gold);
            width: 30px;
            border-radius: 6px;
        }

        .carousel-dots button:hover {
            background: var(--gold);
            opacity: 0.7;
        }