:root {
    --primary-blue: #3b82f6;
    --light-blue: #60a5fa;
    --pale-blue: #dbeafe;
    --very-pale-blue: #eff6ff;
    --medical-cyan: #06b6d4;
    --text-dark: #1e3a5f;
    --text-gray: #64748b;
}

* {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    background: linear-gradient(180deg, #f8fafc 0%, #eff6ff 50%, #f0f9ff 100%);
}

.gradient-text {
    background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 50%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(147, 197, 253, 0.3);
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.08);
    transition: all 0.4s cubic-bezier(.2,.8,.2,1);
}

.glass-card:hover {
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
}

.nav-blur {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(147, 197, 253, 0.2);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--medical-cyan));
    border-radius: 2px;
    margin-top: 12px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--medical-cyan) 100%);
    color: white;
    padding: 12px 28px;
    border-radius: 9999px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
    background: white;
    color: var(--primary-blue);
    padding: 12px 28px;
    border-radius: 9999px;
    font-weight: 500;
    border: 2px solid var(--pale-blue);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    border-color: var(--light-blue);
    background: var(--very-pale-blue);
}

.nav-link {
    position: relative;
    color: var(--text-gray);
    transition: color 0.3s ease;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
    border-radius: 1px;
}

.nav-link:hover::after {
    width: 100%;
}

.img-mask {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}

.img-mask img {
    transition: transform 0.6s cubic-bezier(.2,.8,.2,1);
}

.img-mask:hover img {
    transform: scale(1.05);
}

/* 新闻详情专属样式 */
.news-content p {
    margin-bottom: 1.25rem;
    line-height: 1.8;
    color: #334155;
}

.news-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e3a5f;
    margin: 2rem 0 1rem;
}

.news-content blockquote {
    border-left: 4px solid var(--primary-blue);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: #475569;
    background: #f0f9ff;
    padding: 1rem 1.5rem;
    border-radius: 0 8px 8px 0;
}