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

:root {
    --primary-color: #FF6B6B;
    --secondary-color: #4ECDC4;
    --accent-color: #45B7D1;
    --gradient-start: #FF9A8B;
    --gradient-end: #FF6B6B;
    --feature-1-color: #FFE66D;
    --feature-2-color: #4ECDC4;
    --feature-3-color: #95E1D3;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: #333;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 1200px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    padding: 40px;
    display: flex;
    gap: 40px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.left-section {
    flex: 1;
    max-width: 600px;
    position: relative;
    z-index: 1;
}

.right-section {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.logo {
    margin-bottom: 30px;
    position: relative;
}

.logo img {
    width: 120px;
    height: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.logo::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    bottom: -10px;
    left: 0;
}

.intro {
    margin-bottom: 40px;
    position: relative;
}

.intro h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.intro p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    position: relative;
    padding-left: 15px;
    border-left: 3px solid var(--secondary-color);
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-color);
}

.feature-icon {
    width: 50px;
    height: 50px;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--feature-1-color), var(--feature-2-color));
}

.feature-icon img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

.feature-text h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.feature-text p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 180px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.btn:hover::before {
    transform: translateX(0);
}

.btn-icon {
    margin-right: 8px;
}

.enter-btn {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: white;
}

.download-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--gradient-start));
    color: white;
}

.download-btn img {
    width: 20px;
    height: 20px;
    margin-right: 8px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.phone-preview {
    position: relative;
    width: 300px;
    height: 600px;
}

.phone-frame {
    position: relative;
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 20px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 8px solid #333;
}

.preview-image {
    width: 80%;
    height: auto;
    border-radius: 15px;
    animation: float 6s ease-in-out infinite;
}

.decorative-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    background: var(--primary-color);
}

.circle-1 {
    width: 200px;
    height: 200px;
    top: -50px;
    right: -50px;
    background: var(--feature-1-color);
    animation: pulse 4s ease-in-out infinite;
}

.circle-2 {
    width: 150px;
    height: 150px;
    bottom: 50px;
    right: -30px;
    background: var(--feature-2-color);
    animation: pulse 4s ease-in-out infinite 1s;
}

.circle-3 {
    width: 100px;
    height: 100px;
    bottom: -20px;
    left: 50%;
    background: var(--feature-3-color);
    animation: pulse 4s ease-in-out infinite 2s;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.2;
    }
    100% {
        transform: scale(1);
        opacity: 0.1;
    }
}

.wechat-tip {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 999;
    color: white;
    text-align: center;
    padding-top: 20px;
    backdrop-filter: blur(5px);
}

.tip-content {
    font-size: 18px;
    line-height: 1.6;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        flex-direction: column;
        padding: 20px;
    }

    .right-section {
        display: none;
    }

    .left-section {
        max-width: 100%;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 15px;
        border-radius: 15px;
    }
    
    .logo img {
        width: 100px;
    }
    
    .intro h1 {
        font-size: 24px;
    }
    
    .intro p {
        font-size: 14px;
    }
    
    .btn {
        width: 100%;
        min-width: unset;
    }

    .feature-item {
        padding: 15px;
    }
}