:root {
        --primary: #FF6B6B;
        --secondary: #4ECDC4;
        --bg-dark: #1A1A2E;
        --text-dark: #2D3436;
        --text-light: #F5F6FA;
        --gradient-hot: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4);
        --bg-pink: #FFF0F5;
        --bg-mint: #F0FFF4;
        --bg-purple: #F3E8FF;
        --bg-yellow: #FFF9E6;
    }

    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
        -webkit-tap-highlight-color: transparent;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        color: var(--text-dark);
        background-color: #FAFAFA;
        line-height: 1.6;
        overflow-x: hidden;
        padding-bottom: 80px; /* Space for floating button */
    }

    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }
    img { max-width: 100%; display: block; }

    /* Header & Nav */
    .header {
        background: var(--bg-dark);
        color: var(--text-light);
        padding: 15px 20px;
        position: sticky;
        top: 0;
        z-index: 100;
        display: flex;
        justify-content: space-between;
        align-items: center;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    .logo-area {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: bold;
        font-size: 18px;
    }

    .logo-area img {
        height: 32px;
        border-radius: 6px;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        background: none;
        border: none;
        color: var(--text-light);
        font-size: 24px;
        cursor: pointer;
        padding: 5px;
    }

    /* Mobile Drawer */
    .mobile-drawer {
        display: none;
        position: fixed;
        top: 62px;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        z-index: 99;
        padding: 20px;
        border-top: 1px solid rgba(255,255,255,0.1);
        box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    }
    
    .mobile-drawer.active {
        display: block;
    }

    .mobile-drawer ul {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .mobile-drawer a {
        color: var(--text-light);
        font-size: 16px;
        display: block;
        padding: 10px;
        background: rgba(255,255,255,0.05);
        border-radius: 8px;
    }

    /* Hero Section */
    .hero {
        background: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
        color: var(--text-light);
        padding: 40px 20px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .hero h1 {
        font-size: 32px;
        margin-bottom: 15px;
        line-height: 1.3;
        background: linear-gradient(to right, #FF6B6B, #FFE66D);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .hero p {
        font-size: 16px;
        color: #B2BEC3;
        margin-bottom: 30px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }

    .download-group {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
        margin-bottom: 40px;
    }

    .btn-download {
        background: var(--gradient-hot);
        color: #fff;
        padding: 12px 24px;
        border-radius: 50px;
        font-weight: bold;
        font-size: 15px;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: transform 0.2s, box-shadow 0.2s;
        border: none;
        cursor: pointer;
    }

    .btn-download:active {
        transform: scale(0.95);
    }

    .btn-download.btn-ios { background: linear-gradient(90deg, #4ECDC4, #44B0A0); color: #fff;}
    .btn-download.btn-web { background: linear-gradient(90deg, #A29BFE, #6C5CE7); color: #fff;}
    .btn-download.btn-harmony { background: linear-gradient(90deg, #FDCB6E, #E17055); color: #fff;}

    /* Marquee */
    .marquee-container {
        overflow: hidden;
        white-space: nowrap;
        padding: 10px 0;
        border-top: 1px solid rgba(255,255,255,0.1);
        border-bottom: 1px solid rgba(255,255,255,0.1);
        background: rgba(0,0,0,0.2);
        margin: 0 -20px -40px -20px;
    }

    .marquee-content {
        display: inline-block;
        animation: marquee 25s linear infinite;
    }

    .marquee-content span {
        display: inline-block;
        margin: 0 20px;
        font-size: 14px;
        font-weight: bold;
        background: linear-gradient(90deg, #FF9A9E 0%, #FECFEF 50%, #A18CD1 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    @keyframes marquee {
        0% { transform: translateX(0); }
        100% { transform: translateX(-50%); }
    }

    /* Section Common */
    .section {
        padding: 40px 20px;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 25px;
        text-align: center;
        position: relative;
    }

    .section-title::after {
        content: '';
        display: block;
        width: 40px;
        height: 4px;
        background: var(--primary);
        margin: 10px auto 0;
        border-radius: 2px;
    }

    /* Poster Wall (Yesterday Hot) */
    .bg-pink { background: var(--bg-pink); }
    .poster-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .poster-card {
        background: #fff;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        display: flex;
        flex-direction: column;
    }

    .poster-card img {
        width: 100%;
        aspect-ratio: 3/4;
        object-fit: cover;
        transition: transform 0.3s;
    }

    .poster-info {
        padding: 10px;
    }

    .poster-info h3 {
        font-size: 15px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-bottom: 5px;
    }

    .poster-tags {
        display: flex;
        gap: 5px;
        flex-wrap: wrap;
        margin-bottom: 5px;
    }

    .tag {
        font-size: 11px;
        background: var(--bg-pink);
        color: var(--primary);
        padding: 2px 6px;
        border-radius: 4px;
    }

    .poster-desc {
        font-size: 12px;
        color: #636E72;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 5px;
    }

    .poster-date {
        font-size: 11px;
        color: #B2BEC3;
    }

    /* FAQ Style (Ended Selection) */
    .bg-mint { background: var(--bg-mint); }
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .faq-item {
        background: #fff;
        border-radius: 10px;
        padding: 15px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }

    .faq-q {
        font-weight: bold;
        font-size: 15px;
        margin-bottom: 8px;
        color: var(--primary);
        display: flex;
        justify-content: space-between;
    }

    .faq-a {
        font-size: 14px;
        color: #555;
    }

    /* Time Axis (Rising Hot) */
    .bg-purple { background: var(--bg-purple); }
    .timeline {
        position: relative;
        padding-left: 20px;
        border-left: 2px dashed var(--secondary);
        margin-left: 10px;
    }

    .timeline-item {
        position: relative;
        margin-bottom: 20px;
    }

    .timeline-item::before {
        content: '';
        position: absolute;
        left: -27px;
        top: 4px;
        width: 12px;
        height: 12px;
        background: var(--secondary);
        border-radius: 50%;
        border: 3px solid var(--bg-purple);
    }

    .time-label {
        font-size: 12px;
        font-weight: bold;
        color: var(--secondary);
        margin-bottom: 5px;
    }

    .timeline-content {
        background: #fff;
        padding: 15px;
        border-radius: 10px;
        display: flex;
        gap: 15px;
        align-items: center;
        box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

    .timeline-content img {
        width: 60px;
        height: 80px;
        object-fit: cover;
        border-radius: 6px;
    }

    .time-info h4 { font-size: 15px; margin-bottom: 5px; }
    .time-info p { font-size: 12px; color: #777; }

    /* Split Layout (Immersive) */
    .bg-yellow { background: var(--bg-yellow); }
    .split-layout {
        display: flex;
        flex-direction: column;
        gap: 20px;
        background: #fff;
        border-radius: 16px;
        overflow: hidden;
        box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    }
    
    .split-img {
        width: 100%;
        aspect-ratio: 3/4;
        object-fit: cover;
    }

    .split-content {
        padding: 20px;
    }

    .split-content h3 {
        margin-bottom: 15px;
        font-size: 20px;
        color: var(--primary);
    }
    
    .split-content ul {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .split-content li {
        font-size: 14px;
        padding-left: 20px;
        position: relative;
        color: #444;
    }

    .split-content li::before {
        content: '👉';
        position: absolute;
        left: 0;
        top: 0;
        font-size: 12px;
    }

    /* Review Wall */
    .bg-white { background: #fff; }
    .review-grid {
        display: grid;
        grid-template-columns: repeat(1, 1fr);
        gap: 15px;
    }

    .review-card {
        background: #F8F9FA;
        padding: 15px;
        border-radius: 12px;
        display: flex;
        gap: 12px;
        border: 1px solid #EEE;
    }

    .review-avatar {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        object-fit: cover;
        border: 2px solid var(--primary);
    }

    .review-body {
        flex: 1;
    }

    .review-name {
        font-size: 13px;
        font-weight: bold;
        color: #555;
        margin-bottom: 5px;
    }

    .review-text {
        font-size: 14px;
        color: #333;
        margin-bottom: 8px;
    }

    .review-meta {
        font-size: 11px;
        color: #999;
    }

    /* App Steps */
    .steps-container {
        display: flex;
        flex-direction: column;
        gap: 15px;
        margin-bottom: 30px;
    }

    .step-item {
        display: flex;
        gap: 15px;
        align-items: flex-start;
        background: #fff;
        padding: 15px;
        border-radius: 12px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

    .step-num {
        background: var(--secondary);
        color: #fff;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        flex-shrink: 0;
    }

    .step-text h4 { font-size: 15px; margin-bottom: 5px; }
    .step-text p { font-size: 13px; color: #666; }

    /* Floating Download */
    .floating-download {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        background: rgba(26, 26, 46, 0.95);
        backdrop-filter: blur(10px);
        padding: 8px 16px 8px 8px;
        border-radius: 50px;
        display: flex;
        align-items: center;
        gap: 10px;
        box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        z-index: 1000;
        transition: transform 0.3s;
        text-decoration: none;
        color: #fff;
    }

    .floating-download img {
        width: 36px;
        height: 36px;
        border-radius: 50%;
    }

    .floating-download span {
        font-size: 14px;
        font-weight: bold;
        color: var(--text-light);
    }
    
    /* Modal for Baidu/WeChat */
    .modal-overlay {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.6);
        z-index: 2000;
        justify-content: center;
        align-items: center;
    }
    .modal-content {
        background: #fff;
        padding: 25px;
        border-radius: 16px;
        width: 85%;
        max-width: 320px;
        text-align: center;
    }
    .modal-content h3 { font-size: 16px; margin-bottom: 15px; color: #333; }
    .modal-link-box {
        background: #F0F0F0;
        padding: 12px;
        border-radius: 8px;
        word-break: break-all;
        color: #666;
        font-size: 13px;
        margin-bottom: 15px;
    }

    /* Footer */
    .footer {
        background: var(--bg-dark);
        color: #888;
        font-size: 12px;
        padding: 20px;
        text-align: center;
        margin-top: 20px;
    }
    
    .footer a { color: #B2BEC3; margin-bottom: 10px; display: inline-block; }
    .footer p { margin-bottom: 8px; }

    /* Responsive */
    @media (min-width: 768px) {
        .header { padding: 15px 40px; }
        .nav-links {
            display: flex;
            gap: 20px;
        }
        .nav-links a { font-size: 15px; color: #ccc; transition: color 0.2s; }
        .nav-links a:hover { color: #fff; }
        .mobile-menu-btn { display: none; }
        .mobile-drawer { display: none !important; }
        
        .hero h1 { font-size: 48px; }
        .download-group { gap: 20px; }
        
        .poster-grid { grid-template-columns: repeat(4, 1fr); }
        .faq-list { display: grid; grid-template-columns: 1fr 1fr; }
        .timeline { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; border-left: none; margin-left: 0; padding-left: 0; }
        .timeline-item::before { display: none; }
        
        .split-layout { flex-direction: row; align-items: stretch; }
        .split-img { width: 40%; aspect-ratio: auto; }
        .split-content { width: 60%; padding: 30px; display: flex; flex-direction: column; justify-content: center; }
        
        .review-grid { grid-template-columns: repeat(2, 1fr); }
        
        .steps-container { display: grid; grid-template-columns: repeat(3, 1fr); }
        
        .floating-download { padding: 10px 24px 10px 10px; bottom: 30px; }
        .floating-download img { width: 44px; height: 44px; }
        .floating-download span { font-size: 16px; }
    }

    @media (min-width: 1024px) {
        .poster-grid { grid-template-columns: repeat(5, 1fr); }
        .section { padding: 60px 10%; }
        .hero { padding: 80px 10%; }
        .review-grid { grid-template-columns: repeat(3, 1fr); }
        .faq-list { grid-template-columns: 1fr 1fr; }
    }