/* ============================================
   临床网 - 样式表
   ============================================ */

/* ---------- 基础变量 ---------- */
:root {
    --primary: #1a7f8c;
    --primary-dark: #0d5c66;
    --primary-light: #4ab3bd;
    --primary-gradient: linear-gradient(135deg, #1a7f8c 0%, #2d9ca8 100%);
    --accent: #e8a33d;
    --accent-light: #f5c67e;
    --success: #4caf50;
    --danger: #e53935;
    --text-dark: #2d3436;
    --text-medium: #636e72;
    --text-light: #b2bec3;
    --bg-white: #ffffff;
    --bg-light: #f5f9fa;
    --bg-alt: #edf4f5;
    --border: #e1e8ea;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 15px 50px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --transition: all 0.3s ease;
    --container-width: 1200px;
}

/* ---------- Reset ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--bg-white);
    overflow-x: hidden;
}

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

ul, ol {
    list-style: none;
}

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

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

/* ---------- 容器 ---------- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- 通用按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-xl);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(26,127,140,0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(26,127,140,0.4);
}

.btn-outline {
    background: rgba(255,255,255,0.1);
    color: #fff;
    border-color: rgba(255,255,255,0.6);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: #fff;
    color: var(--primary);
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ---------- 顶部信息条 ---------- */
.top-bar {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.85);
    font-size: 0.82rem;
    padding: 8px 0;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.top-bar-left a {
    color: rgba(255,255,255,0.85);
}

.top-bar-left a:hover {
    color: var(--accent-light);
}

.top-bar-left .divider {
    opacity: 0.4;
    margin: 0 4px;
}

.top-bar-right {
    display: flex;
    gap: 18px;
}

.top-bar-right a {
    color: rgba(255,255,255,0.85);
    display: flex;
    align-items: center;
    gap: 5px;
}

.top-bar-right a:hover {
    color: var(--accent-light);
}

/* ---------- 导航栏 ---------- */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.3rem;
    box-shadow: 0 3px 10px rgba(26,127,140,0.25);
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary-dark);
    line-height: 1.1;
}

.logo-text .logo-sub {
    font-size: 0.65rem;
    color: var(--text-light);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.main-nav ul {
    display: flex;
    gap: 4px;
}

.main-nav a {
    display: block;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-medium);
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 60%;
}

/* 移动端汉堡按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

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

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

/* ---------- Hero 区域 ---------- */
.hero {
    position: relative;
    min-height: 640px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0d5c66 0%, #1a7f8c 40%, #2d9ca8 100%);
    padding: 60px 0;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 50%, rgba(232,163,61,0.12) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(74,179,189,0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 90%, rgba(255,255,255,0.05) 0%, transparent 40%);
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: drift 20s linear infinite;
}

@keyframes drift {
    from { background-position: 0 0; }
    to { background-position: 50px 50px; }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--accent-light);
    padding: 6px 18px;
    border-radius: var(--radius-xl);
    font-size: 0.82rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    margin-bottom: 20px;
}

.hero-text h2 {
    font-size: 3rem;
    font-weight: 900;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 18px;
}

.hero-text p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 30px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num, .stat-unit {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-light);
    line-height: 1;
}

.stat-label {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.7);
    margin-top: 4px;
}

/* Hero 视觉 */
.hero-visual {
    position: relative;
    height: 420px;
}

.hero-card {
    position: absolute;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

.hero-card i {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.hero-card h4 {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.hero-card p {
    font-size: 0.78rem;
    color: var(--text-medium);
}

.hero-card-1 { top: 10%; left: 5%; animation-delay: 0s; }
.hero-card-2 { top: 5%; right: 5%; animation-delay: 1.5s; }
.hero-card-3 { bottom: 20%; left: 15%; animation-delay: 3s; }
.hero-card-4 { bottom: 5%; right: 10%; animation-delay: 4.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.shape-1 {
    width: 120px; height: 120px;
    background: var(--accent);
    top: 40%; right: 30%;
    animation: pulse 4s ease-in-out infinite;
}

.shape-2 {
    width: 80px; height: 80px;
    background: #fff;
    bottom: 40%; left: 5%;
    animation: pulse 5s ease-in-out infinite 1s;
}

.shape-3 {
    width: 60px; height: 60px;
    background: var(--primary-light);
    top: 60%; right: 5%;
    animation: pulse 3s ease-in-out infinite 2s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.15; }
    50% { transform: scale(1.15); opacity: 0.08; }
}

/* ---------- 通用区块 ---------- */
.section-head {
    margin-bottom: 50px;
}

.section-head.center {
    text-align: center;
}

.section-tag {
    display: inline-block;
    background: rgba(26,127,140,0.08);
    color: var(--primary);
    padding: 5px 16px;
    border-radius: var(--radius-xl);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.section-head h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}

.section-desc {
    color: var(--text-medium);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

section {
    padding: 80px 0;
}

.alt-bg {
    background: var(--bg-alt);
}

/* ---------- 客户群体 ---------- */
.clients-type {
    background: var(--bg-white);
}

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

.client-type-card {
    text-align: center;
    padding: 36px 24px;
    border-radius: var(--radius-lg);
    background: var(--bg-light);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.client-type-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
    background: #fff;
}

.ct-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 4px 15px rgba(26,127,140,0.25);
}

.client-type-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.client-type-card p {
    font-size: 0.88rem;
    color: var(--text-medium);
    line-height: 1.6;
}

/* ---------- 服务列表 ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: rgba(26,127,140,0.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary-gradient);
    color: #fff;
    transform: rotateY(180deg);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.service-card > p {
    font-size: 0.9rem;
    color: var(--text-medium);
    margin-bottom: 18px;
}

.service-features {
    margin-bottom: 20px;
}

.service-features li {
    font-size: 0.85rem;
    color: var(--text-medium);
    padding: 4px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-features i {
    color: var(--success);
    font-size: 0.75rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.service-link:hover {
    gap: 10px;
}

/* ---------- 特色区块 ---------- */
.feature-section .trial-list {
    max-width: 800px;
    margin: 0 auto;
}

.trial-item {
    display: flex;
    align-items: center;
    gap: 24px;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 24px 28px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.trial-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.trial-phase {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    flex-shrink: 0;
}

.trial-info {
    flex: 1;
}

.trial-info h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.trial-info p {
    font-size: 0.88rem;
    color: var(--text-medium);
}

.trial-status {
    display: inline-block;
    padding: 3px 12px;
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 6px;
}

.trial-status.recruiting {
    background: rgba(76,175,80,0.1);
    color: var(--success);
}

.trial-status.preparing {
    background: rgba(232,163,61,0.1);
    color: var(--accent);
}

.trial-status.active {
    background: rgba(26,127,140,0.1);
    color: var(--primary);
}

/* 患者招募 */
.recruit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.recruit-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.recruit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.recruit-img {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.recruit-img i {
    font-size: 3rem;
    color: var(--primary);
    opacity: 0.6;
}

.recruit-body {
    padding: 24px;
}

.recruit-tag {
    display: inline-block;
    background: rgba(26,127,140,0.08);
    color: var(--primary);
    padding: 3px 12px;
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.recruit-body h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.recruit-body p {
    font-size: 0.88rem;
    color: var(--text-medium);
    margin-bottom: 16px;
}

.recruit-meta {
    display: flex;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    font-size: 0.82rem;
    color: var(--text-medium);
}

.recruit-meta i {
    color: var(--primary);
    margin-right: 4px;
}

/* 数据统计 */
.counter-section {
    background: var(--primary-gradient);
    padding: 50px 0;
    position: relative;
    overflow: hidden;
}

.counter-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
}

.counter-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
    z-index: 2;
}

.counter-item {
    text-align: center;
    color: #fff;
}

.counter-item i {
    font-size: 2rem;
    opacity: 0.8;
    margin-bottom: 10px;
}

.counter-num, .counter-unit {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
}

.counter-unit {
    font-size: 1.5rem;
}

.counter-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.85;
    margin-top: 6px;
}

/* 手术术式 */
.surgery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.surgery-card {
    text-align: center;
    padding: 36px 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.surgery-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.surgery-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: rgba(232,163,61,0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    transition: var(--transition);
}

.surgery-card:hover .surgery-icon {
    background: var(--accent);
    color: #fff;
}

.surgery-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.surgery-card p {
    font-size: 0.85rem;
    color: var(--text-medium);
    margin-bottom: 12px;
}

.surgery-count {
    display: inline-block;
    background: var(--bg-alt);
    color: var(--text-medium);
    padding: 3px 14px;
    border-radius: var(--radius-xl);
    font-size: 0.78rem;
}

/* 检验项目 Tabs */
.lab-tabs {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    overflow: hidden;
}

.tab-buttons {
    display: flex;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
}

.tab-btn {
    flex: 1;
    padding: 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-medium);
    transition: var(--transition);
    position: relative;
}

.tab-btn:hover {
    color: var(--primary);
    background: rgba(26,127,140,0.03);
}

.tab-btn.active {
    color: var(--primary);
    background: #fff;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
}

.tab-content {
    padding: 36px;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-pane.active {
    display: block;
}

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

.lab-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.lab-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    color: var(--text-dark);
    transition: var(--transition);
}

.lab-item:hover {
    background: rgba(26,127,140,0.06);
    transform: translateX(4px);
}

.lab-item i {
    color: var(--primary);
}

/* ---------- 合作伙伴 ---------- */
.partners-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 24px;
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-medium);
    background: #fff;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 3px 10px rgba(26,127,140,0.25);
}

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

.partner-card {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.partner-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.partner-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--bg-alt);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition);
}

.partner-card:hover .partner-logo {
    background: var(--primary-gradient);
    color: #fff;
}

.partner-card h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.partner-card span {
    font-size: 0.82rem;
    color: var(--text-medium);
}

/* ---------- 资讯新闻 ---------- */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    display: flex;
    gap: 18px;
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.news-date {
    text-align: center;
    flex-shrink: 0;
    min-width: 56px;
}

.news-date .day {
    display: block;
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}

.news-date .month {
    display: block;
    font-size: 0.75rem;
    color: var(--text-medium);
    margin-top: 4px;
}

.news-body {
    flex: 1;
}

.news-cat {
    display: inline-block;
    background: rgba(232,163,61,0.1);
    color: var(--accent);
    padding: 2px 10px;
    border-radius: var(--radius-xl);
    font-size: 0.72rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.news-body h4 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text-dark);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-body p {
    font-size: 0.85rem;
    color: var(--text-medium);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    font-size: 0.82rem;
    color: var(--primary);
    font-weight: 500;
}

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

/* ---------- 联系方式 ---------- */
.contact {
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.info-card:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.info-card h4 {
    font-size: 0.85rem;
    color: var(--text-medium);
    font-weight: 500;
    margin-bottom: 2px;
}

.info-card p, .info-card a {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 500;
}

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

/* 二维码 */
.qrcode-section {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.qrcode-section h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.qrcode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.qrcode-card {
    text-align: center;
}

.qrcode-placeholder {
    width: 120px;
    height: 120px;
    margin: 0 auto 10px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    border: 2px dashed var(--border);
}

.wechat-qr {
    color: #07c160;
    background: rgba(7,193,96,0.05);
    border-color: rgba(7,193,96,0.3);
}

.wecom-qr {
    color: var(--primary);
    background: rgba(26,127,140,0.05);
    border-color: rgba(26,127,140,0.3);
}

.qrcode-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.qrcode-label {
    font-size: 0.78rem;
    color: var(--text-medium);
}

.qrcode-tip {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 14px;
    font-style: italic;
}

/* 表单 */
.contact-form-wrap {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.contact-form-wrap h3 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--bg-light);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(26,127,140,0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ---------- 页脚 ---------- */
.footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.75);
    padding: 60px 0 0;
}

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

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.4rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 14px;
}

.footer-logo i {
    color: var(--accent-light);
}

.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.8;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 1rem;
    color: #fff;
    margin-bottom: 18px;
    font-weight: 600;
}

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

.footer-col ul li a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.65);
}

.footer-col ul li a:hover {
    color: var(--accent-light);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    color: rgba(255,255,255,0.65);
}

.footer-contact i {
    color: var(--accent-light);
    margin-top: 4px;
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ---------- 响应式设计 ---------- */

/* 平板 */
@media (max-width: 1024px) {
    .hero-text h2 { font-size: 2.4rem; }
    .hero-visual { height: 360px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .recruit-grid { grid-template-columns: repeat(2, 1fr); }
    .surgery-grid { grid-template-columns: repeat(2, 1fr); }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .clients-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: repeat(2, 1fr); }
    .counter-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}

/* 手机 */
@media (max-width: 768px) {
    html { font-size: 15px; }
    section { padding: 50px 0; }
    .container { padding: 0 16px; }

    .top-bar { display: none; }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #fff;
        box-shadow: var(--shadow-xl);
        transition: right 0.4s ease;
        z-index: 1001;
        padding: 80px 24px 40px;
        overflow-y: auto;
    }

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

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

    .main-nav a {
        padding: 14px 18px;
        font-size: 1rem;
        border-radius: var(--radius-md);
    }

    .main-nav a::after { display: none; }

    .nav-toggle { display: flex; }

    .nav-overlay.open { display: block; }

    .hero {
        min-height: auto;
        padding: 40px 0 60px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .hero-text h2 { font-size: 1.8rem; }

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

    .hero-visual { display: none; }

    .hero-stats { gap: 24px; }
    .stat-num, .stat-unit { font-size: 1.5rem; }

    .section-head h2 { font-size: 1.6rem; }

    .services-grid { grid-template-columns: 1fr; gap: 20px; }
    .recruit-grid { grid-template-columns: 1fr; }
    .surgery-grid { grid-template-columns: 1fr; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .news-grid { grid-template-columns: 1fr; }
    .clients-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .client-type-card { padding: 24px 16px; }
    .ct-icon { width: 56px; height: 56px; font-size: 1.3rem; }

    .counter-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .counter-num, .counter-unit { font-size: 1.8rem; }

    .lab-list { grid-template-columns: 1fr; }
    .tab-content { padding: 20px; }
    .tab-buttons { flex-wrap: wrap; }

    .contact-wrapper { grid-template-columns: 1fr; gap: 30px; }
    .form-row { grid-template-columns: 1fr; }

    .qrcode-grid { gap: 16px; }
    .qrcode-placeholder { width: 100px; height: 100px; font-size: 2rem; }

    .footer-top { grid-template-columns: 1fr; gap: 30px; }
    .footer-bottom { font-size: 0.75rem; }

    .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
    .partners-grid { grid-template-columns: 1fr; }
    .clients-grid { grid-template-columns: 1fr; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .btn { width: 100%; justify-content: center; }
}

/* ---------- 滚动动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

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