/* ==============================
   生殖医学网站模板 - 现代温暖医疗风格
   配色：主色#2A9D8F（青绿色），辅助色#E9F5F3，温暖米白，柔和阴影
   ============================== */

/* ===== CSS 变量 ===== */
:root {
    --primary: #2A9D8F;
    --primary-dark: #21867a;
    --primary-light: #52b7ab;
    --primary-bg: #E9F5F3;
    --secondary: #F4A261;
    --accent: #E76F51;
    --text-dark: #264653;
    --text-body: #4a5568;
    --text-light: #718096;
    --text-white: #ffffff;
    --bg-white: #ffffff;
    --bg-light: #f8faf9;
    --bg-cream: #fdf8f3;
    --border: #e2e8f0;
    --border-light: #edf2f7;
    --shadow-sm: 0 2px 8px rgba(42, 157, 143, 0.06);
    --shadow-md: 0 4px 20px rgba(42, 157, 143, 0.08);
    --shadow-lg: 0 10px 40px rgba(42, 157, 143, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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: 1.7;
    color: var(--text-body);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* ===== 通用容器 ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    box-shadow: 0 4px 12px rgba(42, 157, 143, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(42, 157, 143, 0.35);
}

.btn-secondary {
    background: var(--primary-bg);
    color: var(--primary);
    border: 1px solid rgba(42, 157, 143, 0.2);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-phone {
    background: var(--bg-cream);
    color: var(--accent);
    border: 1px solid rgba(231, 111, 81, 0.2);
}

.btn-phone:hover {
    background: var(--accent);
    color: var(--text-white);
}

/* ===== 通用区块标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

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

.section-desc {
    font-size: 16px;
    color: var(--text-light);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== 头部导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.logo-icon {
    display: flex;
    align-items: center;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-body);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--primary-bg);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
}

.header-phone:hover {
    color: var(--primary-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-close {
    display: none;
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 8px;
    color: var(--text-dark);
}

.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}

.nav-overlay.active {
    display: block;
    opacity: 1;
}

/* ===== Hero 主视觉 ===== */
.hero {
    position: relative;
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f0f9f8 0%, #ffffff 50%, #fdf8f3 100%);
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(42, 157, 143, 0.2);
}

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

.hero-subtitle {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-phone {
    display: flex;
}

.hero-image {
    position: relative;
}

.hero-img-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-img-wrapper img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.hero-img-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-md);
}

.badge-icon {
    width: 44px;
    height: 44px;
    background: var(--primary-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.badge-text strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
}

.badge-text span {
    font-size: 13px;
    color: var(--text-light);
}

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.3;
}

.deco-circle-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-bg);
    top: -100px;
    right: -100px;
}

.deco-circle-2 {
    width: 300px;
    height: 300px;
    background: rgba(244, 162, 97, 0.1);
    bottom: -50px;
    left: -100px;
}

/* ===== 特色优势 ===== */
.features {
    padding: 60px 0;
    background: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    background: var(--bg-light);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    background: var(--bg-white);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--primary-bg);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== 医疗服务分类 ===== */
.services {
    padding: 80px 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.service-card-lg {
    grid-column: span 2;
    grid-row: span 2;
}

.service-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

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

.service-card-inner {
    padding: 28px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card-lg .service-card-inner {
    padding: 36px;
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #d4ebe8 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 20px;
}

.service-card-lg .service-icon {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    margin-bottom: 24px;
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.service-card:not(.service-card-lg) h3 {
    font-size: 17px;
}

.service-desc {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.service-card:not(.service-card-lg) .service-desc {
    font-size: 14px;
    margin-bottom: 0;
}

.service-points {
    margin-bottom: 24px;
}

.service-points li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    color: var(--text-body);
    margin-bottom: 8px;
}

.service-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    margin-top: auto;
}

.service-link:hover {
    gap: 10px;
    color: var(--primary-dark);
}

/* ===== 试管婴儿技术介绍 ===== */
.ivf-tech {
    padding: 80px 0;
    background: var(--bg-white);
}

.tech-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tech-tab {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: var(--bg-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.tech-tab:hover {
    border-color: var(--primary-bg);
}

.tech-tab.active {
    background: var(--bg-white);
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.tech-num {
    width: 36px;
    height: 36px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.tech-tab.active .tech-num {
    background: var(--primary);
    color: white;
}

.tech-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.tech-en {
    font-size: 13px;
    color: var(--text-light);
}

.tech-panel {
    display: none;
}

.tech-panel.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tech-panel-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    padding: 48px;
}

.tech-info h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.tech-subtitle {
    font-size: 15px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 24px;
}

.tech-desc p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 20px;
}

.tech-desc h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
    margin-top: 24px;
}

.tech-desc ul {
    margin-bottom: 16px;
}

.tech-desc ul li {
    position: relative;
    padding-left: 20px;
    font-size: 15px;
    color: var(--text-body);
    margin-bottom: 8px;
}

.tech-desc ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.tech-process h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.process-step {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.process-step:hover {
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.step-num {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 15px;
    flex-shrink: 0;
}

.step-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
}

.tech-notice {
    display: flex;
    gap: 12px;
    padding: 20px 24px;
    background: var(--bg-cream);
    border-radius: var(--radius-md);
    margin-top: 32px;
    border-left: 4px solid var(--secondary);
}

.tech-notice svg {
    color: var(--secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

.tech-notice p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-body);
}

/* ===== 就诊流程 ===== */
.process {
    padding: 80px 0;
    background: var(--bg-light);
}

.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-light), var(--primary-bg));
}

.timeline-items {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.timeline-item {
    position: relative;
    padding-left: 72px;
}

.timeline-dot {
    position: absolute;
    left: 16px;
    top: 8px;
    width: 18px;
    height: 18px;
    background: var(--bg-white);
    border: 4px solid var(--primary);
    border-radius: 50%;
    z-index: 2;
}

.timeline-content {
    background: var(--bg-white);
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.timeline-step {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 16px;
}

.timeline-tips {
    padding: 12px 16px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--primary-dark);
}

.timeline-tips span {
    display: block;
}

/* ===== FAQ 常见问题 ===== */
.faq {
    padding: 80px 0;
    background: var(--bg-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.faq-icon {
    color: var(--primary);
    flex-shrink: 0;
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 800px;
    padding: 0 24px 24px;
}

.faq-answer p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 12px;
}

.faq-answer ul {
    margin: 12px 0;
    padding-left: 20px;
}

.faq-answer ul li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 6px;
    list-style-type: disc;
}

/* ===== 资讯列表 - 必须保留的Grid基础规则 ===== */
.news {
    padding: 80px 0;
    background: var(--bg-light);
}

/* 强制资讯列表Grid规则 - 不得修改 */
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: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

ul.article-cards > li.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.article-card .card-thumb {
    width: 100%;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.article-card .card-thumb img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}

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

.article-card .card-title {
    overflow-wrap: anywhere;
    padding: 16px 20px 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
}

.article-card .card-title a {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card .card-title a:hover {
    color: var(--primary);
}

.article-card .card-date {
    display: block;
    padding: 0 20px 12px;
    font-size: 13px;
    color: var(--text-light);
}

.article-card .card-summary {
    overflow-wrap: anywhere;
    padding: 0 20px 20px;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== 关于我们 ===== */
.about {
    padding: 80px 0;
    background: var(--bg-white);
}

.about-inner {
    max-width: 1000px;
    margin: 0 auto;
}

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.about-intro {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-body);
    margin-bottom: 32px;
}

.about-services h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.about-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-body);
    font-weight: 500;
}

.about-notice {
    padding: 20px 24px;
    background: var(--primary-bg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary);
}

.about-notice p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--primary-dark);
}

.about-notice strong {
    font-weight: 600;
}

/* ===== 联系我们 ===== */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9f8 0%, #fdf8f3 100%);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 16px;
}

.contact-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.contact-method {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.contact-method:hover {
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
    display: block;
    margin-bottom: 4px;
}

.contact-value:hover {
    color: var(--primary-dark);
}

.contact-text p {
    font-size: 13px;
    color: var(--text-light);
}

.contact-notice {
    padding: 16px 20px;
    background: var(--bg-cream);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== 咨询表单 ===== */
.contact-form-wrapper {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-desc {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text-body);
    background: var(--bg-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.1);
}

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

.form-notice {
    padding: 12px 16px;
    background: var(--bg-cream);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.form-notice p {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--text-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
    opacity: 0.8;
}

.footer-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-light);
    font-weight: 500;
}

.footer-phone:hover {
    color: white;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    font-size: 14px;
    opacity: 0.7;
}

.footer-column ul li a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-grouplinks {
    padding: 32px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grouplinks h4 {
    font-size: 15px;
    font-weight: 600;
    color: white;
    margin-bottom: 16px;
}

.grouplinks-list {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.grouplinks-list a {
    font-size: 13px;
    opacity: 0.6;
}

.grouplinks-list a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: 30px;
    text-align: center;
}

.copyright {
    margin-bottom: 12px;
}

.copyright p {
    font-size: 14px;
    opacity: 0.6;
}

.footer-beian {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 13px;
}

.footer-beian a {
    opacity: 0.6;
}

.footer-beian a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-beian span {
    opacity: 0.3;
}

.disclaimer p {
    font-size: 12px;
    opacity: 0.5;
    max-width: 800px;
    margin: 0 auto;
}

/* ===== 浮动按钮 ===== */
.float-actions {
    position: fixed;
    right: 20px;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 998;
}

.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-phone {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.float-consult {
    background: linear-gradient(135deg, var(--accent) 0%, #d85a3e 100%);
}

/* ===== 文章详情页 ===== */
.article-detail {
    padding: 120px 0 80px;
    background: var(--bg-light);
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-sm);
}

.breadcrumb {
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-light);
}

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

.breadcrumb a:hover {
    text-decoration: underline;
}

.article-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
}

.article-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
}

.article-summary-text {
    font-size: 15px;
    color: var(--text-body);
    line-height: 1.7;
    width: 100%;
    padding: 16px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
    margin-bottom: 12px;
}

.article-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-light);
}

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

.article-cover img {
    width: 100%;
    height: auto;
}

.article-content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-body);
    margin-bottom: 40px;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 32px 0 16px;
}

.article-content h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 28px 0 14px;
}

.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 24px 0 12px;
}

.article-content ul,
.article-content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.article-content ul li {
    list-style-type: disc;
    margin-bottom: 8px;
}

.article-content ol li {
    list-style-type: decimal;
    margin-bottom: 8px;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: 24px 0;
}

.article-content blockquote {
    padding: 16px 20px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    font-style: italic;
    color: var(--text-light);
}

/* 医学免责声明 */
.medical-disclaimer {
    padding: 24px;
    background: var(--bg-cream);
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    border: 1px solid rgba(244, 162, 97, 0.2);
}

.disclaimer-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--secondary);
}

.disclaimer-header h4 {
    font-size: 17px;
    font-weight: 600;
}

.disclaimer-content p {
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 8px;
}

.related-topics {
    margin-bottom: 40px;
}

.related-topics h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.topic-card {
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.topic-card:hover {
    background: var(--primary-bg);
    transform: translateY(-2px);
}

.topic-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.topic-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* 文章页CTA */
.article-cta {
    padding: 32px;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--bg-cream) 100%);
    border-radius: var(--radius-lg);
    text-align: center;
}

.cta-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 15px;
    color: var(--text-body);
    margin-bottom: 24px;
}

.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 渐入动画 ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== 响应式适配 ===== */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-img-wrapper img {
        height: 400px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-card-lg {
        grid-column: span 2;
        grid-row: span 1;
    }

    .tech-panel-inner {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 32px;
    }

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

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

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .header-phone span {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-close {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-white);
        flex-direction: column;
        padding: 80px 24px 24px;
        z-index: 1001;
        transition: right 0.3s ease;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    }

    .main-nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 4px;
    }

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

    .hero {
        padding: 110px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

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

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

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

    .hero-img-wrapper img {
        height: 300px;
    }

    .hero-img-badge {
        left: 16px;
        right: 16px;
        bottom: 16px;
        padding: 12px 16px;
    }

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

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

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

    .service-card-lg {
        grid-column: span 1;
    }

    .tech-tabs {
        flex-direction: column;
    }

    .tech-tab {
        width: 100%;
        justify-content: flex-start;
    }

    .tech-panel-inner {
        padding: 24px 20px;
    }

    .tech-info h3 {
        font-size: 22px;
    }

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

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .contact-form-wrapper {
        padding: 24px 20px;
    }

    .float-actions {
        right: 16px;
        bottom: 20px;
    }

    .float-btn {
        width: 48px;
        height: 48px;
    }

    /* 文章详情响应式 */
    .article-detail {
        padding: 100px 0 40px;
    }

    .article-container {
        padding: 24px 20px;
    }

    .article-title {
        font-size: 22px;
    }

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

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

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

    .timeline-item {
        padding-left: 56px;
    }

    .timeline-line {
        left: 20px;
    }

    .timeline-dot {
        left: 12px;
    }
}