/* 三甲医院风格生殖医学网站模板 - 蓝白专业风格 */
/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 三甲医院主色 - 专业医疗蓝 */
    --primary: #165DFF;
    --primary-dark: #0E42D2;
    --primary-light: #E8F3FF;
    --secondary: #00B42A;
    --secondary-light: #E8FFEA;
    --accent: #FF7D00;
    --accent-light: #FFF7E8;
    --danger: #F53F3F;
    --warning: #FF7D00;
    /* 中性色 */
    --gray-50: #F7F8FA;
    --gray-100: #F2F3F5;
    --gray-200: #E5E6EB;
    --gray-300: #C9CDD4;
    --gray-400: #86909C;
    --gray-500: #4E5969;
    --gray-600: #272E3B;
    --gray-700: #1D2129;
    --white: #FFFFFF;
    /* 阴影、圆角 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(22, 93, 255, 0.12);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    /* 过渡 */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-gray {
    background-color: var(--gray-50);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-700);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-desc {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: var(--white);
}

.btn-outline-secondary {
    background-color: transparent;
    color: var(--gray-600);
    border-color: var(--gray-300);
}

.btn-outline-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.text-link {
    color: var(--primary);
    font-weight: 500;
    font-size: 14px;
}

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

/* 头部导航 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--gray-200);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-700);
}

.logo-link:hover {
    color: var(--primary);
}

.logo-icon {
    font-size: 28px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-bar {
    width: 24px;
    height: 2px;
    background-color: var(--gray-700);
    border-radius: 1px;
    transition: var(--transition);
}

.main-nav .nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: block;
    padding: 8px 12px;
    color: var(--gray-600);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--primary-light);
}

.nav-cta .btn {
    margin-left: 8px;
}

/* Hero 区域 */
.hero-section {
    background: linear-gradient(135deg, #E8F3FF 0%, #F7F8FA 100%);
    padding: 80px 0;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--white);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--gray-700);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.phone-icon {
    font-size: 16px;
}

.hero-note {
    font-size: 13px;
    color: var(--gray-400);
}

.hero-banner {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.banner-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* 服务分类 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.service-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 12px;
}

.service-note {
    font-size: 13px;
    color: var(--gray-400);
    line-height: 1.6;
    padding: 8px 12px;
    background-color: var(--gray-50);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.service-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* 试管婴儿技术 */
.tech-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tech-item {
    display: flex;
    gap: 24px;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.tech-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.tech-index {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-light);
    line-height: 1;
    min-width: 60px;
}

.tech-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 16px;
}

.tech-content p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 10px;
}

.tech-content p strong {
    color: var(--gray-700);
    font-weight: 600;
}

.tech-warning {
    padding: 12px 16px;
    background-color: var(--accent-light);
    border-radius: var(--radius-sm);
    color: var(--accent) !important;
    font-size: 14px !important;
    margin: 16px 0 !important;
}

/* 医疗团队 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.team-card {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    transition: var(--transition);
}

.team-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.team-avatar {
    font-size: 56px;
    margin-bottom: 16px;
}

.team-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.team-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.team-note {
    max-width: 800px;
    margin: 0 auto;
    padding: 16px 20px;
    background-color: var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--primary-dark);
    line-height: 1.6;
}

/* 医疗环境 */
.env-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.env-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.env-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.env-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.env-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.env-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* 就诊指南 */
.guide-steps {
    position: relative;
    max-width: 800px;
    margin: 0 auto 32px;
    padding-left: 40px;
}

.guide-steps::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--primary-light);
}

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

.step-item:last-child {
    margin-bottom: 0;
}

.step-number {
    position: absolute;
    left: -40px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
}

.step-content {
    background-color: var(--white);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

.step-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

.guide-note {
    max-width: 800px;
    margin: 0 auto;
    padding: 16px 20px;
    background-color: var(--accent-light);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--accent);
    line-height: 1.6;
}

/* 资讯列表 - 必须严格保留的Grid规则 */
ul.article-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    box-sizing: border-box;
}

ul.article-cards > li.article-card {
    min-width: 0;
    width: auto;
    max-width: none;
    margin: 0;
    float: none;
    box-sizing: border-box;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

ul.article-cards > li.article-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.article-card .card-thumb {
    width: 100%;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.article-card .card-thumb img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .card-thumb img {
    transform: scale(1.05);
}

.article-card .card-body {
    padding: 16px;
}

.article-card .card-title {
    overflow-wrap: anywhere;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card .card-date {
    display: block;
    font-size: 13px;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.article-card .card-summary {
    overflow-wrap: anywhere;
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-light);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-family: inherit;
}

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    color: var(--primary);
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* 关于我们 */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.about-content p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 16px;
}

.about-list {
    margin: 20px 0;
    padding-left: 20px;
}

.about-list li {
    list-style: disc;
    font-size: 15px;
    color: var(--gray-500);
    line-height: 2;
}

.about-note {
    margin-top: 24px;
    padding: 16px 20px;
    background-color: var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--primary-dark);
    line-height: 1.6;
}

/* 联系方式 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-card {
    background-color: var(--white);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    margin-bottom: 20px;
}

.contact-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.contact-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 8px;
}

.contact-phone {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.contact-note {
    font-size: 12px;
    color: var(--gray-400);
    font-style: italic;
}

.contact-form-wrap {
    background-color: var(--white);
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.contact-form-wrap h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background-color: var(--white);
}

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

.form-group textarea {
    resize: vertical;
}

.form-note {
    margin-top: 12px;
    font-size: 12px;
    color: var(--gray-400);
    text-align: center;
}

/* 文章详情页 */
.article-section {
    padding: 40px 0 80px;
    background-color: var(--gray-50);
}

.article-container {
    max-width: 800px;
    background-color: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.breadcrumb-wrap {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
    color: var(--gray-400);
}

.breadcrumb-wrap a {
    color: var(--gray-500);
}

.breadcrumb-wrap a:hover {
    color: var(--primary);
}

.article-header {
    margin-bottom: 32px;
}

.article-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-700);
    line-height: 1.3;
    margin-bottom: 16px;
}

.article-summary {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.7;
    padding: 16px;
    background-color: var(--gray-50);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    gap: 24px;
    font-size: 14px;
    color: var(--gray-400);
    flex-wrap: wrap;
}

.article-cover-wrap {
    margin-bottom: 32px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-cover-img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
}

.article-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.article-content h2,
.article-content h3,
.article-content h4 {
    color: var(--gray-700);
    margin: 32px 0 16px;
    font-weight: 600;
    line-height: 1.4;
}

.article-content h2 {
    font-size: 24px;
}

.article-content h3 {
    font-size: 20px;
}

.article-content p {
    margin-bottom: 16px;
}

.article-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 20px 0;
}

.article-content ul,
.article-content ol {
    margin: 16px 0;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.article-content ul li {
    list-style: disc;
}

.article-content ol li {
    list-style: decimal;
}

.article-disclaimer {
    padding: 20px;
    background-color: var(--accent-light);
    border-radius: var(--radius-md);
    margin-bottom: 40px;
}

.article-disclaimer h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 8px;
}

.article-disclaimer p {
    font-size: 14px;
    color: var(--accent);
    line-height: 1.7;
}

.related-topics {
    margin-bottom: 32px;
}

.related-topics h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 16px;
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.topic-tag {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 14px;
    border-radius: 20px;
    transition: var(--transition);
}

.topic-tag:hover {
    background-color: var(--primary);
    color: var(--white);
}

.article-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* 文章页CTA */
.article-cta {
    text-align: center;
}

.cta-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 页脚 */
.site-footer {
    background-color: #0F2E5C;
    color: var(--gray-300);
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    color: var(--gray-300);
}

.footer-disclaimer {
    font-size: 13px;
    line-height: 1.6;
    padding: 12px 16px;
    background-color: rgba(255,255,255,0.05);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    color: var(--gray-400);
}

.footer-disclaimer strong {
    color: var(--white);
}

.footer-phone {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
}

.footer-phone:hover {
    color: var(--primary-light);
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-300);
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--white);
}

.grouplinks {
    font-size: 13px;
    line-height: 2;
}

.grouplinks a {
    color: var(--gray-400);
    margin-right: 12px;
}

.grouplinks a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-copyright {
    font-size: 13px;
    color: var(--gray-400);
}

.footer-copyright a {
    color: var(--gray-400);
}

.footer-copyright a:hover {
    color: var(--white);
}

/* 响应式 */
@media (max-width: 992px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 26px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 32px;
    }

    .banner-img {
        height: 300px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .article-container {
        padding: 24px;
    }

    .article-title {
        font-size: 24px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-nav {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--white);
        box-shadow: var(--shadow-md);
        padding: 20px;
        display: none;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }

    .nav-link {
        padding: 12px 16px;
    }

    .nav-cta {
        margin-top: 12px;
    }

    .nav-cta .btn {
        margin-left: 0;
        width: 100%;
    }

    .hero-section {
        padding: 40px 0;
    }

    .hero-title {
        font-size: 26px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .banner-img {
        height: 220px;
    }

    .tech-item {
        flex-direction: column;
        padding: 24px;
        gap: 12px;
    }

    .tech-index {
        font-size: 32px;
        min-width: auto;
    }

    .about-content {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .article-actions {
        flex-direction: column;
    }

    .article-actions .btn {
        width: 100%;
    }

    .cta-actions {
        flex-direction: column;
    }

    .cta-actions .btn {
        width: 100%;
    }

    .mobile-menu-toggle.active .menu-bar:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .mobile-menu-toggle.active .menu-bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active .menu-bar:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }
}

/* 减少动效偏好支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}