:root {
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --accent-color: #17c3b2;
    --text-color: #333;
    --text-secondary: #666;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.4s cubic-bezier(0.215, 0.610, 0.355, 1.000);

    /* 增加字体大小，使整体更大气 */
    --font-title: 'Helvetica Neue', Arial, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: var(--light-bg);
    font-family: var(--font-title);
    line-height: 1.7;
    font-size: 1.25rem; /* 从1.1rem增加到1.25rem，提高可读性 */
}

/* 确保Banner不会与导航条重叠 */
.banner-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-container:hover .banner-image {
    transform: scale(1.1);
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
}

.blue-shape {
    position: absolute;
    top: 50%;
    left: 0;
    width: 400px;
    height: 400px;
    background-color: #0066cc;
    border-radius: 0 100% 100% 0;
    opacity: 0.3;
    transform: translateY(-50%);
    z-index: 1;
    /* 添加从左到右的动画 */
    animation: slideInFromLeft 1s ease-out 0.6s both;
}

.banner-content {
    position: relative;
    z-index: 2;
    margin-left: 100px;
}

.banner-title {
    font-size: 54px;
    color: white;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    /* 添加淡入动画 */
    animation: fadeIn 0.8s ease-out both;
}

.banner-subtitle {
    font-size: 24px;
    color: white;
    opacity: 0.9;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    /* 添加淡入动画，延迟显示 */
    animation: fadeIn 0.8s ease-out 0.3s both;
}

/* 定义动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromLeft {
    from {
        width: 0;
    }
    to {
        width: 400px;
    }
}

/* CSS续写内容 */

.section {
    padding: 80px 24px;
    background: var(--light-bg);
}

.section + .section {
    padding-top: 40px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 36px;
}

.section-title {
    font-size: 36px;
    color: var(--text-color);
    font-weight: 700;
    letter-spacing: 1px;
}

.section-subtitle {
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 16px;
}

/* 我们的业务 */
.biz-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (min-width: 992px) {
    .biz-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 575.98px) {
    .biz-grid {
        grid-template-columns: 1fr;
    }
}

.biz-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    padding: 24px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.biz-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(120px 120px at 10% 0%, rgba(23, 195, 178, 0.12), transparent 60%),
    radial-gradient(140px 140px at 90% 100%, rgba(0, 123, 255, 0.10), transparent 60%);
    pointer-events: none;
}

.biz-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.biz-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    font-weight: 700;
    margin-bottom: 16px;
    box-shadow: 0 6px 14px rgba(0, 123, 255, 0.25);
}

.biz-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 8px;
}

.biz-desc {
    color: var(--text-secondary);
    font-size: 15px;
}

/* 联系我们 */
.contact-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: 24px;
    display: grid;
    gap: 16px;
}

.contact-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-badge {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: #fff;
    font-weight: 700;
    box-shadow: 0 6px 14px rgba(23, 195, 178, 0.25);
}

.contact-text {
    color: var(--text-color);
}

.contact-link {
    color: var(--primary-dark);
    text-decoration: none;
}

.contact-link:hover {
    text-decoration: underline;
}

/* 分隔装饰 */
.divider {
    height: 2px;
    background: linear-gradient(90deg, rgba(0, 123, 255, 0.15), rgba(23, 195, 178, 0.15));
    margin: 24px 0;
    border-radius: 2px;
}

/* 联系我们页面布局 */
.contact-section {
    background: var(--white);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

@media (max-width: 991.98px) {
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* 左侧内容区域 */
.contact-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 联系信息卡片 */
.contact-info-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: 32px;
    transition: var(--transition);
}

.contact-info-card:hover {
    box-shadow: var(--shadow-medium);
}

.contact-info-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--light-bg);
}

.contact-info-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-detail {
    flex: 1;
}

.contact-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 16px;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-text {
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
}

.wechat-qrcode {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    border: 2px solid var(--light-bg);
    margin-top: 8px;
}

/* 权益卡片 */
.benefits-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: 32px;
    transition: var(--transition);
}

.benefits-card:hover {
    box-shadow: var(--shadow-medium);
}

.benefits-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--light-bg);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.benefit-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.benefit-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 16px;
}

.benefit-content {
    flex: 1;
}

.benefit-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
}

.benefit-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 表单卡片 */
.contact-right {
    position: sticky;
    top: 100px;
}

.form-card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: 32px;
    transition: var(--transition);
}

.form-card:hover {
    box-shadow: var(--shadow-medium);
}

.form-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--light-bg);
}

.solution-form {
    display: flex;
    flex-direction: column;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
}

.required {
    color: #dc3545;
}

.name-input-group {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    color: var(--text-color);
    background: var(--white);
    transition: var(--transition);
    font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.gender-select {
    width: 100px;
    flex-shrink: 0;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--text-color);
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: var(--transition);
}

.checkbox-label:hover {
    background: var(--light-bg);
}

.form-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.privacy-checkbox {
    grid-column: 1 / -1;
    font-size: 14px;
}

.privacy-link {
    color: var(--primary-color);
    text-decoration: none;
}

.privacy-link:hover {
    text-decoration: underline;
}

.form-submit-btn {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
}

.form-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 123, 255, 0.3);
}

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

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

@media (max-width: 991.98px) {
    .contact-right {
        position: static;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
}