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

body {
    font-family:
            -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
            'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    min-height: 100vh;
}

.container {
    max-width: 100vw;
}

.banner {
    text-align: center;
    padding: 80px 0 60px;
    color: white;
    background-color: #764ba2;
}

.banner-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.banner-subtitle {
    font-size: 1.5rem;
    margin-bottom: 15px;
    opacity: 0.9;
}

.banner-description {
    font-size: 1.1rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

.input-section {
    border-radius: 10px;
    padding: 40px;
    margin: 16px auto 60px;
    max-width: 800px;
}

.input-container {
    display: flex;
    gap: 15px;
    align-items: center;
}

.video-input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
}

.video-input:focus {
    border-color: #667eea;
}

.video-input::placeholder {
    color: #999;
}

.parse-button {
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition:
            transform 0.2s ease,
            box-shadow 0.2s ease;
    white-space: nowrap;
}

.parse-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.parse-button:active {
    transform: translateY(0);
}
.loader-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    display: none;
}
.loader-box p {
    margin-top: 8px;
    font-size: 16px;
    letter-spacing: 1px;
    font-weight: 500;
}

@media (max-width: 768px) {
    .banner-title {
        font-size: 2.5rem;
    }

    .banner-subtitle {
        font-size: 1.2rem;
    }

    .input-section {
        padding: 30px 20px;
        margin: 0 20px 40px;
    }

    .input-container {
        flex-direction: column;
    }

    .video-input {
        width: 100%;
    }

    .parse-button {
        width: 100%;
    }

}