:root {
        --bg-color: #0B0B10;
        --text-main: #F2F2F6;
        --text-muted: #8A8A9E;
        --accent: #FF4757;
        --surface: #15151E;
        --radius-sm: 8px;
        --radius-pill: 999px;
    }

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

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

    img {
        display: block;
        max-width: 100%;
        object-fit: cover;
    }

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

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

    /* Top Navigation - App Style */
    .app-nav {
        position: sticky;
        top: 0;
        background-color: var(--bg-color);
        z-index: 100;
        padding: 16px 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .nav-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 16px;
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
    }

    .brand img {
        height: 32px;
        width: auto;
        object-fit: contain;
    }

    .channels {
        display: flex;
        gap: 24px;
        overflow-x: auto;
        scrollbar-width: none;
        padding-bottom: 8px;
    }
    .channels::-webkit-scrollbar {
        display: none;
    }

    .channel-link {
        font-size: 15px;
        color: var(--text-muted);
        white-space: nowrap;
        position: relative;
        padding-bottom: 6px;
        cursor: pointer;
    }

    .channel-link.active {
        color: #fff;
        font-weight: bold;
    }

    .channel-link.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 3px;
        background-color: var(--accent);
        border-radius: 2px;
    }

    .search-bar {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .search-input {
        flex: 1;
        background-color: var(--surface);
        border-radius: var(--radius-pill);
        padding: 10px 20px;
        color: var(--text-muted);
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .filter-btn {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background-color: var(--accent);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    /* Main Content */
    main {
        padding-bottom: 80px; /* Leave space for bottom nav */
    }

    /* Hero Recommendation */
    .hero {
        margin-top: 20px;
        position: relative;
        border-radius: var(--radius-sm);
        overflow: hidden;
        aspect-ratio: 16/9;
    }

    .hero-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(11,11,16,1) 0%, rgba(11,11,16,0) 60%);
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
        padding: 20px;
    }

    .hero-title {
        font-size: 24px;
        font-weight: 700;
        margin-bottom: 6px;
    }

    .hero-tags {
        display: flex;
        gap: 8px;
        margin-bottom: 12px;
    }

    .tag {
        background-color: rgba(255,255,255,0.15);
        padding: 2px 8px;
        border-radius: var(--radius-sm);
        font-size: 12px;
        backdrop-filter: blur(4px);
    }

    .hero-desc {
        font-size: 14px;
        color: rgba(255,255,255,0.7);
        line-height: 1.5;
        max-width: 600px;
    }

    .hero-desc p {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* Poster Wall */
    .section-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin: 30px 0 16px;
    }

    .section-title {
        font-size: 20px;
        font-weight: 700;
    }

    .section-more {
        font-size: 14px;
        color: var(--text-muted);
    }

    .poster-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .poster-card {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .poster-wrap {
        position: relative;
        aspect-ratio: 2/3;
        border-radius: var(--radius-sm);
        overflow: hidden;
    }

    .poster-wrap img {
        width: 100%;
        height: 100%;
    }

    .poster-bottom {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 20px 8px 6px;
        background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
        font-size: 11px;
        text-align: right;
    }

    .poster-title {
        font-size: 14px;
        font-weight: 500;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .poster-meta {
        font-size: 12px;
        color: var(--text-muted);
    }

    /* Categories */
    .category-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        margin-top: 16px;
    }

    .category-card {
        background-color: var(--surface);
        padding: 16px;
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255,255,255,0.05);
    }

    .category-name {
        font-size: 16px;
        font-weight: bold;
        margin-bottom: 6px;
        color: var(--accent);
    }

    .category-desc {
        font-size: 13px;
        color: var(--text-muted);
    }

    /* Experience */
    .experience-section {
        margin-top: 40px;
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .exp-texts {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        text-align: center;
    }

    .exp-item {
        background-color: var(--surface);
        padding: 12px;
        border-radius: var(--radius-sm);
    }

    .exp-title {
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 4px;
    }

    .exp-sub {
        font-size: 12px;
        color: var(--text-muted);
    }

    .screenshot-scroll {
        display: flex;
        gap: 16px;
        overflow-x: auto;
        padding-bottom: 10px;
        scrollbar-width: none;
    }
    .screenshot-scroll::-webkit-scrollbar {
        display: none;
    }

    .screenshot-scroll img {
        height: 320px;
        width: auto;
        border-radius: var(--radius-sm);
        object-fit: contain;
        background-color: var(--surface);
    }

    /* Download Area */
    .download-area {
        margin-top: 40px;
        text-align: center;
        background-color: var(--surface);
        padding: 30px 20px;
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255,71,87,0.3);
    }

    .download-title {
        font-size: 22px;
        font-weight: bold;
        margin-bottom: 12px;
        color: #fff;
    }

    .download-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background-color: var(--accent);
        color: #fff;
        font-size: 16px;
        font-weight: bold;
        padding: 14px 40px;
        border-radius: var(--radius-pill);
        gap: 8px;
        box-shadow: 0 4px 15px rgba(255,71,87,0.3);
    }

    /* Footer */
    footer {
        margin-top: 40px;
        padding: 30px 20px 60px;
        text-align: center;
        font-size: 12px;
        color: var(--text-muted);
        border-top: 1px solid rgba(255,255,255,0.05);
    }

    footer p {
        margin-bottom: 8px;
    }

    footer a {
        color: var(--text-muted);
        transition: color 0.2s;
    }

    footer a:hover {
        color: var(--text-main);
    }

    /* Bottom Nav Mobile App Style */
    .bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: rgba(21,21,30,0.95);
        backdrop-filter: blur(10px);
        display: flex;
        justify-content: space-around;
        padding: 10px 0;
        border-top: 1px solid rgba(255,255,255,0.05);
        z-index: 100;
    }

    .bottom-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        font-size: 11px;
        color: var(--text-muted);
    }

    .bottom-nav-item.active {
        color: var(--accent);
    }

    .bottom-nav-icon {
        width: 20px;
        height: 20px;
        border: 2px solid currentColor;
        border-radius: 50%;
    }

    /* Responsive Breakpoints */
    @media (min-width: 768px) {
        .poster-grid {
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .category-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .screenshot-scroll img {
            height: 400px;
        }
        .bottom-nav {
            display: none;
        }
        main {
            padding-bottom: 40px;
        }
    }

    @media (min-width: 1024px) {
        .poster-grid {
            grid-template-columns: repeat(6, 1fr);
        }
        .category-grid {
            grid-template-columns: repeat(6, 1fr);
        }
        .hero {
            aspect-ratio: 21/9;
        }
        .hero-title {
            font-size: 32px;
        }
        .hero-desc {
            font-size: 16px;
        }
        .category-name {
            font-size: 18px;
        }
        .screenshot-scroll {
            justify-content: center;
        }
    }