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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 600px;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* 头部卡片 */
.header-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 20px;
    text-align: center;
    position: relative;
}

.avatar-container {
    margin-bottom: 20px;
}

.avatar {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 32px;
    color: white;
    border: 3px solid rgba(255, 255, 255, 0.4);
}

.company-name {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.company-info {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 500;
}

/* 主要内容 */
.main-content {
    padding: 30px 20px;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    outline: none;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.form-input:focus {
    border-color: #667eea;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

/* 验证码部分 */
.code-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.code-prompt {
    display: block;
    font-size: 13px;
    color: #ff8c42;
    margin-bottom: 15px;
    font-weight: 500;
}

#code-count {
    font-weight: 700;
    color: #ff8c42;
}

.btn-primary {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 12px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.code-tips {
    font-size: 12px;
    color: #999;
    line-height: 1.6;
    margin: 0;
}

/* 历史记录部分 */
.history-section {
    margin-top: 30px;
}

.history-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

.history-table-container {
    overflow-x: auto;
    border-radius: 8px;
    background: #f8f9fa;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.history-table thead {
    background: #f0f0f0;
}

.history-table th {
    padding: 12px 10px;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 1px solid #e5e5e5;
}

.history-table td {
    padding: 12px 10px;
    border-bottom: 1px solid #e5e5e5;
    color: #666;
}

.history-table tbody tr:last-child td {
    border-bottom: none;
}

.history-table tbody tr:hover {
    background: #f5f5f5;
}

.empty-row {
    text-align: center;
    color: #999;
}

.empty-row td {
    padding: 40px 10px;
    font-size: 14px;
}

/* 操作按钮 */
.btn-action {
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.btn-action:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #764ba2;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .container {
        margin: 0;
        border-radius: 12px;
    }

    .header-card {
        padding: 30px 15px;
    }

    .company-name {
        font-size: 20px;
    }

    .main-content {
        padding: 20px 15px;
    }

    .history-table {
        font-size: 12px;
    }

    .history-table th,
    .history-table td {
        padding: 10px 8px;
    }
}

/* 禁用状态 */
.form-input:disabled {
    background-color: #f0f0f0;
    cursor: not-allowed;
}

/* 加载状态动画 */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}