* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.header {
    background: linear-gradient(to right, #4facfe, #00f2fe);
    color: white;
    padding: 30px;
    text-align: center;
}

.header i {
    font-size: 3rem;
    margin-bottom: 15px;
}

.header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

.verification-box {
    padding: 40px;
}

.verification-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
    color: #555;
}

.verification-info i {
    color: #4facfe;
    font-size: 1.5rem;
}

.slider-container {
    position: relative;
    height: 70px;
    background: #f5f5f5;
    border-radius: 35px;
    margin-bottom: 20px;
    overflow: hidden;
    border: 2px solid #e0e0e0;
}

.slider-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #666;
    font-weight: 600;
    font-size: 1.1rem;
}

.slider-track {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(to right, #4facfe, #00f2fe);
    transition: width 0.1s;
}

.slider-handle {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 66px;
    height: 66px;
    background: white;
    border-radius: 50%;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 10;
    transition: all 0.2s;
    user-select: none;
}

.slider-handle i {
    color: #4facfe;
    font-size: 1.5rem;
}

.slider-handle:active {
    cursor: grabbing;
    transform: scale(0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.slider-success {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, #56ab2f, #a8e063);
    display: none;
    align-items: center;
    justify-content: center;
    gap: 15px;
    color: white;
    font-weight: 600;
    font-size: 1.3rem;
    z-index: 5;
}

.verification-hint {
    text-align: center;
    font-size: 1rem;
    margin-top: 10px;
    min-height: 24px;
}

.verification-hint.success {
    color: #56ab2f;
}

.verification-hint.error {
    color: #ff3860;
}

.verification-hint.info {
    color: #4facfe;
}

.security-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
    color: #888;
    font-size: 0.9rem;
}

.security-info i {
    color: #4facfe;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    color: white;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #4facfe;
    animation: spin 1s ease-in-out infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.content-container {
    width: 100%;
    max-width: 800px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px;
}

.content h2 {
    color: #333;
    margin-bottom: 20px;
    border-bottom: 2px solid #4facfe;
    padding-bottom: 10px;
}

.content p {
    color: #555;
    line-height: 1.6;
    margin-bottom: 15px;
}

/* 响应式设计 */
@media (max-width: 600px) {
    .container, .content-container {
        max-width: 100%;
        margin: 10px;
    }
    
    .verification-box {
        padding: 30px 20px;
    }
    
    .header {
        padding: 20px;
    }
    
    .slider-container {
        height: 60px;
    }
    
    .slider-handle {
        width: 56px;
        height: 56px;
    }
}