:root {
        --bg-dark: #0f0f15;
        --bg-card: #181824;
        --bg-card-hover: #222233;
        --text-main: #f2f2f7;
        --text-sub: #a0a0b0;
        --accent: #ff4757;
        --accent-glow: rgba(255, 71, 87, 0.4);
        --gradient-main: linear-gradient(135deg, #ff4757, #ff6b81);
        --gradient-bg: radial-gradient(circle at top, #2a0a0f 0%, #0f0f15 60%);
        --border-color: #2a2a3a;
    }

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

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

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

    ul {
        list-style: none;
    }

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

    /* Header */
    header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(15, 15, 21, 0.9);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-color);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 64px;
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 1.2rem;
        font-weight: bold;
        color: var(--text-main);
    }

    .brand img {
        height: 32px;
        width: 32px;
        border-radius: 8px;
        object-fit: cover;
    }

    .nav-links {
        display: none;
    }

    .nav-links a {
        margin-left: 20px;
        color: var(--text-sub);
        font-size: 0.95rem;
        transition: color 0.2s;
    }

    .nav-links a:hover {
        color: var(--accent);
    }

    /* Hero Section */
    .hero {
        padding: 80px 0 60px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: -50%;
        left: 50%;
        transform: translateX(-50%);
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, rgba(255, 71, 87, 0.15) 0%, transparent 70%);
        z-index: 0;
        pointer-events: none;
    }

    .hero-content {
        position: relative;
        z-index: 1;
    }

    .hero h1 {
        font-size: 2.5rem;
        line-height: 1.2;
        margin-bottom: 20px;
        background: linear-gradient(90deg, #fff, #ffb3b8);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .hero p {
        font-size: 1.1rem;
        color: var(--text-sub);
        max-width: 600px;
        margin: 0 auto 40px;
    }

    .download-group {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
        position: relative;
        z-index: 10;
    }

    .btn-download {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 14px 28px;
        border-radius: 30px;
        font-weight: bold;
        font-size: 1rem;
        transition: transform 0.2s, box-shadow 0.2s;
        cursor: pointer;
    }

    .btn-primary {
        background: var(--gradient-main);
        color: #fff;
        box-shadow: 0 4px 15px var(--accent-glow);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px var(--accent-glow);
    }

    .btn-secondary {
        background: rgba(255, 255, 255, 0.1);
        color: var(--text-main);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
    }

    /* Section Common */
    section {
        padding: 70px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .section-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .section-header h2 {
        font-size: 2rem;
        margin-bottom: 10px;
        color: var(--text-main);
    }

    .section-header p {
        color: var(--text-sub);
    }

    /* Grid Layouts */
    .grid-3 {
        display: grid;
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .grid-4 {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }

    @media (min-width: 768px) {
        .grid-3 { grid-template-columns: repeat(2, 1fr); }
        .grid-4 { grid-template-columns: repeat(2, 1fr); }
        .hero h1 { font-size: 3.5rem; }
        .nav-links { display: block; }
    }

    @media (min-width: 1024px) {
        .grid-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-4 { grid-template-columns: repeat(4, 1fr); }
        .hero { padding: 100px 0 80px; }
        .hero h1 { font-size: 4rem; }
    }

    /* AI Drama Cards */
    .drama-card {
        background: var(--bg-card);
        border-radius: 16px;
        overflow: hidden;
        border: 1px solid var(--border-color);
        transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    }

    .drama-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        border-color: var(--accent);
    }

    .drama-img-wrap {
        position: relative;
        padding-top: 133%; /* 3:4 aspect ratio */
        overflow: hidden;
    }

    .drama-img-wrap img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s;
    }

    .drama-card:hover .drama-img-wrap img {
        transform: scale(1.05);
    }

    .drama-info {
        padding: 16px;
    }

    .drama-info h3 {
        font-size: 1.1rem;
        margin-bottom: 8px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .drama-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        margin-bottom: 10px;
    }

    .tag {
        font-size: 0.75rem;
        padding: 2px 8px;
        border-radius: 4px;
        background: rgba(255, 71, 87, 0.15);
        color: var(--accent);
    }

    .drama-desc {
        font-size: 0.85rem;
        color: var(--text-sub);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 10px;
    }

    .drama-meta {
        font-size: 0.75rem;
        color: #666;
    }

    /* Steps Section */
    .step-list {
        display: flex;
        flex-direction: column;
        gap: 20px;
        max-width: 800px;
        margin: 0 auto;
    }

    .step-item {
        display: flex;
        align-items: flex-start;
        gap: 16px;
        background: var(--bg-card);
        padding: 24px;
        border-radius: 16px;
        border-left: 4px solid var(--accent);
    }

    .step-num {
        background: var(--gradient-main);
        color: #fff;
        width: 32px;
        height: 32px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        flex-shrink: 0;
    }

    .step-text h3 {
        font-size: 1.1rem;
        margin-bottom: 4px;
    }

    .step-text p {
        color: var(--text-sub);
        font-size: 0.9rem;
    }

    /* FAQ & Review Q&A */
    .qa-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
        max-width: 800px;
        margin: 0 auto;
    }

    .qa-item {
        background: var(--bg-card);
        padding: 20px;
        border-radius: 12px;
        border: 1px solid var(--border-color);
    }

    .qa-q {
        font-weight: bold;
        color: var(--accent);
        margin-bottom: 8px;
        display: flex;
        gap: 8px;
    }
    .qa-q::before { content: 'Q'; font-weight: 900; }
    .qa-a {
        color: var(--text-sub);
        font-size: 0.95rem;
        display: flex;
        gap: 8px;
    }
    .qa-a::before { content: 'A'; font-weight: 900; color: var(--text-main); }

    /* Creator & Community */
    .feature-box {
        background: var(--bg-card);
        padding: 30px;
        border-radius: 16px;
        border: 1px solid var(--border-color);
        text-align: center;
    }

    .feature-box h3 {
        margin-bottom: 12px;
        color: var(--accent);
    }

    .feature-box p {
        font-size: 0.95rem;
        color: var(--text-sub);
    }

    .community-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }

    @media (min-width: 768px) {
        .community-grid { grid-template-columns: repeat(2, 1fr); }
    }

    /* Footer */
    footer {
        padding: 40px 20px;
        text-align: center;
        color: var(--text-sub);
        font-size: 0.85rem;
        border-top: 1px solid var(--border-color);
        background: #0a0a0f;
    }

    .footer-links {
        margin-bottom: 20px;
        display: flex;
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }

    .footer-links a:hover {
        color: var(--accent);
    }

    .update-time {
        color: #555;
        margin-top: 10px;
        font-size: 0.8rem;
    }