:root {
        --primary: #8BC34A;
        --primary-dark: #689F38;
        --bg-dark: #121212;
        --bg-card: #1E1E1E;
        --text-main: #F5F5F5;
        --text-muted: #AAAAAA;
        --accent: #FFC107;
    }
    * { 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-dark);
        color: var(--text-main);
        line-height: 1.6;
        overflow-x: hidden;
    }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; object-fit: cover; }
    
    /* Header */
    header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(18, 18, 18, 0.95);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .header-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 10px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: bold;
        color: var(--primary);
    }
    .brand img { height: 32px; border-radius: 8px; }
    .nav-links { display: flex; gap: 20px; font-size: 14px; color: var(--text-muted); }
    .nav-links a:hover { color: var(--primary); }
    .btn-download {
        background: var(--primary);
        color: #000;
        padding: 8px 16px;
        border-radius: 20px;
        font-weight: bold;
        font-size: 14px;
        transition: transform 0.2s;
    }
    .btn-download:hover { transform: scale(1.05); }

    /* Hero Section */
    .hero {
        position: relative;
        padding: 60px 20px;
        text-align: center;
        background: linear-gradient(135deg, #1a2a1a 0%, #121212 100%);
        overflow: hidden;
    }
    .hero h1 {
        font-size: 32px;
        margin-bottom: 20px;
        line-height: 1.2;
        background: linear-gradient(to right, #8BC34A, #FFC107);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .hero p {
        font-size: 16px;
        color: var(--text-muted);
        max-width: 600px;
        margin: 0 auto 30px;
    }
    .hero-btns {
        display: flex;
        justify-content: center;
        gap: 15px;
        flex-wrap: wrap;
        margin-bottom: 40px;
    }
    .btn-group {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
    .hero-btns a {
        background: var(--primary);
        color: #000;
        padding: 12px 30px;
        border-radius: 30px;
        font-weight: bold;
        font-size: 16px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .hero-btns a.outline {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--primary);
    }
    .hero-btns span { font-size: 12px; color: var(--text-muted); }
    
    /* Carousel */
    .carousel {
        display: flex;
        overflow-x: auto;
        gap: 15px;
        padding: 20px;
        scroll-snap-type: x mandatory;
        scrollbar-width: none;
        max-width: 800px;
        margin: 0 auto;
    }
    .carousel::-webkit-scrollbar { display: none; }
    .carousel-item {
        flex: 0 0 200px;
        scroll-snap-align: center;
        position: relative;
        border-radius: 12px;
        overflow: hidden;
        transition: transform 0.3s;
    }
    .carousel-item:hover { transform: scale(1.02); }
    .carousel-item img { height: 280px; width: 100%; border-radius: 12px; }
    .carousel-tag {
        position: absolute;
        bottom: 10px;
        left: 10px;
        background: rgba(0,0,0,0.7);
        padding: 4px 8px;
        border-radius: 4px;
        font-size: 12px;
        color: var(--accent);
    }

    /* Sections */
    section { padding: 60px 20px; }
    .section-inner { max-width: 1200px; margin: 0 auto; }
    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
        text-align: center;
        color: var(--primary);
    }
    .section-title::after {
        content: '';
        display: block;
        width: 40px;
        height: 3px;
        background: var(--primary);
        margin: 10px auto 0;
        border-radius: 2px;
    }

    /* Grid Layouts */
    .grid-layout { display: grid; gap: 20px; }
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }

    /* Left Right Layout */
    .split-layout {
        display: flex;
        flex-direction: column;
        gap: 30px;
        align-items: center;
    }
    .split-layout .img-box {
        flex: 0 0 100%;
        max-width: 300px;
        border-radius: 16px;
        overflow: hidden;
        box-shadow: 0 10px 20px rgba(0,0,0,0.5);
    }
    .split-layout .img-box img { width: 100%; height: auto; display: block; }
    .split-layout .list-box { flex: 1; width: 100%; }

    /* Timeline */
    .timeline {
        position: relative;
        padding-left: 30px;
        border-left: 2px solid var(--primary);
        margin-top: 20px;
    }
    .timeline-item {
        position: relative;
        margin-bottom: 20px;
        padding: 15px;
        background: var(--bg-card);
        border-radius: 8px;
    }
    .timeline-item::before {
        content: '';
        position: absolute;
        left: -36px;
        top: 20px;
        width: 10px;
        height: 10px;
        background: var(--accent);
        border-radius: 50%;
    }
    .timeline-time { font-weight: bold; color: var(--accent); margin-bottom: 5px; }
    .timeline-desc { font-size: 14px; color: var(--text-muted); }

    /* Comments */
    .comment-card {
        background: var(--bg-card);
        padding: 20px;
        border-radius: 12px;
        display: flex;
        gap: 15px;
        align-items: flex-start;
    }
    .comment-card img {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        flex-shrink: 0;
    }
    .comment-content h4 { font-size: 14px; color: var(--primary); margin-bottom: 5px; }
    .comment-content p { font-size: 14px; color: var(--text-muted); font-style: italic; }

    /* FAQ */
    .faq-item {
        background: var(--bg-card);
        padding: 20px;
        border-radius: 12px;
        margin-bottom: 15px;
    }
    .faq-item h3 { font-size: 16px; color: var(--accent); margin-bottom: 10px; }
    .faq-item p { font-size: 14px; color: var(--text-muted); }

    /* Cards */
    .card {
        background: var(--bg-card);
        border-radius: 12px;
        overflow: hidden;
        position: relative;
    }
    .card img { height: 350px; width: 100%; object-fit: cover; }
    .card-info {
        padding: 15px;
    }
    .card-info h3 { font-size: 16px; margin-bottom: 5px; }
    .card-info p { font-size: 13px; color: var(--text-muted); margin-bottom: 10px; }
    .tags { display: flex; gap: 8px; flex-wrap: wrap; }
    .tag { font-size: 12px; background: rgba(139, 195, 74, 0.2); color: var(--primary); padding: 2px 8px; border-radius: 4px; }
    .date { font-size: 12px; color: #666; margin-top: 10px; display: block; }

    .post-item {
        background: var(--bg-card);
        padding: 20px;
        border-radius: 12px;
        margin-bottom: 15px;
        border-left: 4px solid var(--primary);
    }
    .post-item h3 { font-size: 16px; margin-bottom: 10px; color: var(--text-main); }
    .post-item p { font-size: 14px; color: var(--text-muted); }

    /* Download Section */
    .download-section {
        background: linear-gradient(0deg, rgba(30,30,30,1) 0%, rgba(18,18,18,1) 100%);
        text-align: center;
        border-top: 1px solid rgba(255,255,255,0.05);
    }
    .step-box {
        display: flex;
        flex-direction: column;
        gap: 20px;
        margin-bottom: 40px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    .step {
        display: flex;
        align-items: center;
        gap: 15px;
        background: var(--bg-card);
        padding: 15px 20px;
        border-radius: 12px;
        text-align: left;
    }
    .step-num {
        width: 30px;
        height: 30px;
        background: var(--primary);
        color: #000;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        flex-shrink: 0;
    }

    /* Modal */
    .modal-overlay {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.8);
        display: none;
        justify-content: center;
        align-items: center;
        z-index: 1000;
    }
    .modal-content {
        background: var(--bg-card);
        padding: 30px;
        border-radius: 16px;
        width: 90%;
        max-width: 400px;
        text-align: center;
        position: relative;
    }
    .modal-content p { margin-bottom: 20px; color: var(--text-main); }
    .modal-content input {
        width: 100%;
        padding: 10px;
        margin-bottom: 20px;
        background: var(--bg-dark);
        border: 1px solid #333;
        color: #fff;
        border-radius: 8px;
        text-align: center;
    }
    .modal-content button {
        background: var(--primary);
        color: #000;
        border: none;
        padding: 10px 20px;
        border-radius: 8px;
        font-weight: bold;
        cursor: pointer;
        width: 100%;
    }
    .close-modal {
        position: absolute;
        top: 10px;
        right: 15px;
        font-size: 20px;
        cursor: pointer;
        color: var(--text-muted);
    }

    /* Footer */
    footer {
        padding: 40px 20px;
        text-align: center;
        border-top: 1px solid rgba(255,255,255,0.05);
        font-size: 12px;
        color: #666;
    }
    footer p { margin-bottom: 10px; }
    footer a { color: #888; }
    footer a:hover { color: var(--primary); }

    /* Responsive */
    @media (min-width: 768px) {
        .hero h1 { font-size: 42px; }
        .grid-2 { grid-template-columns: 1fr 1fr; }
        .grid-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-4 { grid-template-columns: repeat(4, 1fr); }
        .split-layout { flex-direction: row; align-items: flex-start; }
        .split-layout .img-box { flex: 0 0 300px; max-width: 300px; }
        .step-box { flex-direction: row; max-width: none; }
        .step { flex: 1; flex-direction: column; text-align: center; }
        .carousel { gap: 20px; }
        .carousel-item { flex: 0 0 250px; }
        .carousel-item img { height: 350px; }
    }
    @media (min-width: 1024px) {
        .hero h1 { font-size: 52px; }
        .nav-links { display: flex; }
        .carousel-item { flex: 0 0 300px; }
        .carousel-item img { height: 400px; }
    }