:root {
        --primary-yellow: #FFD700;
        --primary-yellow-dark: #E6C200;
        --bg-black: #0A0A0A;
        --bg-dark-gray: #1A1A1A;
        --text-white: #FFFFFF;
        --text-gray: #A0A0A0;
        --radius-lg: 16px;
        --radius-md: 10px;
        --transition: all 0.3s ease;
    }

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

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        background-color: var(--bg-black);
        color: var(--text-white);
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background-color: var(--primary-yellow);
        color: var(--bg-black);
        font-weight: bold;
        border-radius: 50px;
        padding: 10px 24px;
        transition: var(--transition);
        border: none;
        cursor: pointer;
    }

    .btn:hover {
        background-color: var(--primary-yellow-dark);
        transform: translateY(-2px);
    }

    .btn-large {
        padding: 18px 60px;
        font-size: 20px;
        box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
    }

    /* Header */
    header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background-color: rgba(10, 10, 10, 0.9);
        backdrop-filter: blur(10px);
        z-index: 100;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 70px;
    }

    .logo-box {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: bold;
    }

    .logo-box img {
        height: 32px;
        width: auto;
        border-radius: 6px;
    }

    .nav-links {
        display: none;
    }

    /* Hero */
    .hero {
        padding: 120px 0 60px;
        text-align: center;
        background: radial-gradient(circle at top, rgba(255, 215, 0, 0.15) 0%, var(--bg-black) 60%);
    }

    .hero h1 {
        font-size: 32px;
        line-height: 1.3;
        margin-bottom: 20px;
        color: var(--primary-yellow);
    }

    .hero p {
        font-size: 16px;
        color: var(--text-gray);
        margin-bottom: 30px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    /* Data Carousel */
    .data-section {
        padding: 40px 0;
        background-color: var(--bg-dark-gray);
        overflow: hidden;
    }

    .data-scroll {
        display: flex;
        gap: 20px;
        overflow-x: auto;
        padding-bottom: 10px;
        scrollbar-width: none;
    }
    .data-scroll::-webkit-scrollbar {
        display: none;
    }

    .data-card {
        flex: 0 0 auto;
        background: rgba(255, 255, 255, 0.05);
        padding: 20px 30px;
        border-radius: var(--radius-md);
        border: 1px solid rgba(255, 215, 0, 0.2);
        text-align: center;
    }

    .data-card h3 {
        color: var(--primary-yellow);
        font-size: 18px;
        margin-bottom: 5px;
    }

    .data-card p {
        color: var(--text-gray);
        font-size: 14px;
    }

    /* Section Common */
    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
        text-align: center;
        position: relative;
    }

    .section-title::after {
        content: '';
        display: block;
        width: 40px;
        height: 3px;
        background-color: var(--primary-yellow);
        margin: 10px auto 0;
        border-radius: 2px;
    }

    /* Platform Intro */
    .intro-content {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .intro-text {
        color: var(--text-gray);
    }

    .intro-text h2 {
        color: var(--text-white);
        margin-bottom: 15px;
        font-size: 22px;
    }

    .intro-img {
        width: 100%;
        border-radius: var(--radius-lg);
        overflow: hidden;
    }

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

    /* Features */
    .feature-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        background: var(--bg-dark-gray);
        padding: 30px 20px;
        border-radius: var(--radius-lg);
        border: 1px solid rgba(255, 255, 255, 0.05);
        transition: var(--transition);
    }

    .feature-card:hover {
        border-color: rgba(255, 215, 0, 0.5);
        transform: translateY(-5px);
    }

    .feature-card h3 {
        color: var(--primary-yellow);
        margin-bottom: 10px;
        font-size: 18px;
    }

    /* Image Wall */
    .image-wall {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-top: 20px;
    }

    .image-wall img {
        width: 100%;
        height: auto;
        border-radius: var(--radius-md);
        object-fit: cover;
        aspect-ratio: 3/4;
    }

    /* Hot List */
    .hot-list {
        display: grid;
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .hot-item {
        display: flex;
        gap: 15px;
        background: var(--bg-dark-gray);
        padding: 15px;
        border-radius: var(--radius-md);
        align-items: center;
    }

    .hot-item img {
        width: 80px;
        height: 106px;
        object-fit: cover;
        border-radius: 6px;
    }

    .hot-info h3 {
        font-size: 16px;
        margin-bottom: 5px;
    }

    .hot-info p {
        color: var(--text-gray);
        font-size: 13px;
    }

    /* Testimonials */
    .testimonial-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .testimonial-card {
        background: var(--bg-dark-gray);
        padding: 20px;
        border-radius: var(--radius-lg);
        border-left: 4px solid var(--primary-yellow);
    }

    .testimonial-card p {
        font-style: italic;
        margin-bottom: 10px;
        font-size: 15px;
    }

    .testimonial-user {
        color: var(--primary-yellow);
        font-weight: bold;
        font-size: 14px;
    }

    /* Download Section */
    .download-section {
        text-align: center;
        background: linear-gradient(180deg, var(--bg-black) 0%, var(--bg-dark-gray) 100%);
        padding: 80px 0;
    }

    .download-section h2 {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .download-section p {
        color: var(--text-gray);
        margin-bottom: 40px;
    }

    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .faq-item {
        background: var(--bg-dark-gray);
        padding: 20px;
        border-radius: var(--radius-md);
    }

    .faq-item h3 {
        font-size: 16px;
        margin-bottom: 10px;
        color: var(--primary-yellow);
    }

    .faq-item p {
        color: var(--text-gray);
        font-size: 14px;
    }

    /* Footer */
    footer {
        background-color: #000;
        padding: 40px 0;
        text-align: center;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    footer p {
        color: var(--text-gray);
        font-size: 13px;
        margin-bottom: 10px;
    }

    .footer-time {
        font-size: 12px;
        color: #666;
    }

    /* Responsive */
    @media (min-width: 768px) {
        .header-content {
            height: 80px;
        }
        .logo-box {
            font-size: 24px;
        }
        .nav-links {
            display: flex;
            gap: 30px;
            font-size: 15px;
        }
        .nav-links a:hover {
            color: var(--primary-yellow);
        }
        .hero h1 {
            font-size: 48px;
        }
        .hero p {
            font-size: 18px;
        }
        .intro-content {
            flex-direction: row;
            align-items: center;
        }
        .intro-text {
            flex: 1;
        }
        .intro-img {
            flex: 1;
        }
        .feature-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .image-wall {
            grid-template-columns: repeat(4, 1fr);
        }
        .hot-list {
            grid-template-columns: repeat(2, 1fr);
        }
        .testimonial-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (min-width: 1024px) {
        .hero h1 {
            font-size: 56px;
        }
        .feature-grid {
            grid-template-columns: repeat(4, 1fr);
        }
        .hot-list {
            grid-template-columns: repeat(3, 1fr);
        }
        .testimonial-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .faq-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
        }
    }