/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #2563eb;
    --secondary-blue: #1e40af;
    --light-blue: #dbeafe;
    --accent-blue: #3b82f6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --white: #ffffff;
    --light-gray: #f8fafc;
    --border-gray: #e5e7eb;
    --success-green: #10b981;
    --warning-orange: #f59e0b;
    --danger-red: #ef4444;
    --shadow-light: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

/* 导航栏 */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-medium);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* 头部横幅 */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/medical_header.jpg') center/cover;
    opacity: 0.1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(37, 99, 235, 0.8);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    font-weight: 400;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-button {
    display: inline-block;
    background: var(--white);
    color: var(--primary-blue);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
}

.cta-button:hover {
    background: var(--light-gray);
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

/* 提醒横幅 */
.notice-banner {
    background: linear-gradient(135deg, var(--warning-orange), #fb923c);
    color: var(--white);
    padding: 1.5rem 0;
}

.notice-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notice-content i {
    font-size: 2rem;
    opacity: 0.9;
}

.notice-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.notice-text p {
    opacity: 0.95;
    font-size: 0.95rem;
}

/* 区域标题 */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-blue);
    border-radius: 2px;
}

.section-title i {
    margin-right: 0.5rem;
    color: var(--primary-blue);
}

/* 筛选区域 */
.filters-section {
    padding: 4rem 0;
    background: var(--light-gray);
}

.search-container {
    margin-bottom: 2rem;
}

.search-box {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.search-box input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid var(--border-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    align-items: end;
    margin-top: 2rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.875rem;
}

.filter-select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-gray);
    border-radius: var(--border-radius);
    background: var(--white);
    font-size: 0.95rem;
    min-width: 150px;
    transition: var(--transition);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.clear-filters-btn {
    background: var(--text-light);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.clear-filters-btn:hover {
    background: var(--text-dark);
}

/* FMLA专家展示 */
.fmla-experts {
    padding: 4rem 0;
    background: var(--white);
}

.fmla-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* 医生信息展示 */
.doctors-section {
    padding: 4rem 0;
    background: var(--light-gray);
}

.doctors-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.results-count {
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
}

.doctors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* 医生卡片样式 */
.doctor-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-gray);
    position: relative;
    overflow: hidden;
}

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

.doctor-card.fmla-certified::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--success-green), #34d399);
}

.doctor-header {
    margin-bottom: 1.5rem;
}

.doctor-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.doctor-chinese-name {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.doctor-degree {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-block;
}

.doctor-info {
    margin-bottom: 1.5rem;
}

.info-row {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.info-row i {
    color: var(--primary-blue);
    width: 16px;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.info-content {
    flex: 1;
}

.info-label {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.info-value {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

.languages-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.language-tag {
    background: var(--primary-blue);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 500;
}

.language-tag.mandarin {
    background: var(--success-green);
}

.language-tag.cantonese {
    background: var(--warning-orange);
}

.fmla-status {
    margin: 1.5rem 0;
    padding: 1rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.fmla-status.confirmed {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success-green);
}

.fmla-status.needs-verification {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning-orange);
}

.fmla-status i {
    font-size: 1.25rem;
}

.contact-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.contact-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

.contact-btn.primary:hover {
    background: var(--secondary-blue);
}

.contact-btn.secondary {
    background: var(--light-gray);
    color: var(--text-dark);
    border: 1px solid var(--border-gray);
}

.contact-btn.secondary:hover {
    background: var(--border-gray);
}

/* FMLA信息区域 */
.fmla-info {
    padding: 4rem 0;
    background: var(--white);
}

.fmla-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.fmla-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-gray);
    transition: var(--transition);
}

.fmla-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.fmla-card i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.fmla-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.fmla-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* 加载动画 */
.loading-spinner {
    text-align: center;
    padding: 3rem 0;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-gray);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 无结果显示 */
.no-results {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-light);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* 返回顶部按钮 */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    box-shadow: var(--shadow-medium);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-item {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .filters-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-select {
        width: 100%;
        min-width: auto;
    }
    
    .doctors-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .doctors-grid,
    .fmla-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-actions {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 1rem 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .doctor-card {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hero,
    .filters-section,
    .scroll-to-top,
    .notice-banner {
        display: none;
    }
    
    .doctor-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--border-gray);
    }
    
    .doctors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}