/* ===== 全局基础 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    background: #f5f7fa;
    line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== 顶部导航 ===== */
.header {
    background: #fff;
    padding: 0 40px;
    border-bottom: 3px solid #1565c0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.logo {
    font-size: 22px;
    font-weight: bold;
    color: #1565c0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo img {
    height: 44px;
    width: auto;
    border-radius: 50%;
}
.logo .logo-text {
    font-size: 22px;
    font-weight: bold;
    color: #1565c0;
}
.logo .sub-title {
    font-size: 12px;
    color: #90a4ae;
    font-weight: normal;
    border-left: 1px solid #ccc;
    padding-left: 8px;
    margin-left: 4px;
}
.nav { display: flex; gap: 6px; }
.nav a {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 15px;
    color: #455a64;
    transition: all 0.2s;
}
.nav a:hover, .nav a.active {
    background: #e3f2fd;
    color: #1565c0;
}

/* ===== 通用 Banner ===== */
.page-banner {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 40px;
    margin: 24px 40px;
    border-radius: 12px;
}
.page-banner h1 {
    color: #1565c0;
    font-size: 28px;
    margin-bottom: 8px;
}
.page-banner p {
    color: #546e7a;
    font-size: 16px;
}

/* ===== 特性卡片 ===== */
.features {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 32px 40px;
    flex-wrap: wrap;
}
.feature-box {
    background: #fff;
    padding: 32px 24px;
    width: 300px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    text-align: center;
    transition: transform 0.2s;
}
.feature-box:hover { transform: translateY(-4px); }
.feature-box .icon {
    font-size: 40px;
    margin-bottom: 16px;
}
.feature-box h3 {
    color: #1565c0;
    margin-bottom: 10px;
    font-size: 18px;
}
.feature-box p {
    color: #78909c;
    font-size: 14px;
    line-height: 1.7;
}

/* ===== 药品卡片 ===== */
.drug-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    padding: 0 40px 40px;
}
.drug-card {
    background: #fff;
    width: 340px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid #e0e0e0;
    transition: transform 0.2s;
}
.drug-card:hover { transform: translateY(-3px); }
.drug-card-header {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.drug-card-header h3 {
    font-size: 18px;
    color: #1565c0;
}
.drug-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}
.drug-tag.otc { background: #c8e6c9; color: #2e7d32; }
.drug-tag.rx { background: #fff3e0; color: #e65100; }
.drug-info {
    padding: 20px;
}
.drug-info .info-row {
    display: flex;
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.6;
}
.drug-info .info-label {
    color: #90a4ae;
    min-width: 72px;
    flex-shrink: 0;
}
.drug-info .info-value {
    color: #455a64;
}
.drug-warning {
    background: #fff8e1;
    padding: 10px 20px;
    font-size: 13px;
    color: #f57f17;
    border-top: 1px dashed #ffe082;
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

/* ===== 新闻卡片 ===== */
.news-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    padding: 0 40px 40px;
}
.news-card {
    background: #fff;
    width: 340px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.2s;
}
.news-card:hover { transform: translateY(-3px); }
.news-card .news-img {
    height: 180px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}
.news-card .news-body {
    padding: 20px;
}
.news-card .news-date {
    font-size: 12px;
    color: #90a4ae;
    margin-bottom: 8px;
}
.news-card h3 {
    font-size: 17px;
    color: #37474f;
    margin-bottom: 8px;
}
.news-card p {
    font-size: 14px;
    color: #78909c;
    line-height: 1.7;
}
.news-card .news-tag {
    display: inline-block;
    background: #e3f2fd;
    color: #1565c0;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    margin-top: 10px;
}

/* ===== 内容区块 ===== */
.content-section {
    background: #fff;
    margin: 24px 40px;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.content-section h2 {
    color: #1565c0;
    font-size: 22px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e3f2fd;
}
.content-section p {
    color: #546e7a;
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 12px;
}

/* ===== 团队展示 ===== */
.team {
    display: flex;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}
.member {
    border-left: 4px solid #1565c0;
    padding-left: 20px;
    flex: 1;
    min-width: 260px;
    background: #f5f7fa;
    padding: 20px 20px 20px 24px;
    border-radius: 0 8px 8px 0;
}
.member h4 { color: #1565c0; margin-bottom: 8px; font-size: 17px; }
.member p { color: #546e7a; font-size: 14px; margin-bottom: 4px; }

/* ===== 联系信息 ===== */
.contact-grid {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 20px;
}
.contact-item {
    flex: 1;
    min-width: 240px;
    background: #f5f7fa;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
}
.contact-item .icon { font-size: 36px; margin-bottom: 12px; }
.contact-item h4 { color: #1565c0; margin-bottom: 8px; }
.contact-item p { color: #546e7a; font-size: 14px; }

/* ===== 提示信息条 ===== */
.notice-bar {
    background: #e8f5e9;
    padding: 12px 40px;
    color: #2e7d32;
    font-size: 14px;
    border-top: 1px solid #c8e6c9;
    margin: 0;
}

/* ===== 底部 ===== */
.footer {
    background: #263238;
    color: #b0bec5;
    padding: 30px 40px;
    text-align: center;
    margin-top: 40px;
}
.footer .company { color: #eceff1; font-size: 15px; margin-bottom: 8px; }
.footer .cert {
    color: #64b5f6;
    font-weight: bold;
    margin-top: 10px;
    font-size: 14px;
}
.footer .disclaimer {
    font-size: 12px;
    margin-top: 16px;
    line-height: 1.8;
    color: #78909c;
}
.footer .icp {
    font-size: 12px;
    margin-top: 10px;
    color: #607d8b;
}

/* ===== 页面提示 ===== */
.page-tip {
    padding: 16px 40px;
    color: #546e7a;
    font-size: 14px;
}
.page-tip strong { color: #1565c0; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .header { flex-direction: column; height: auto; padding: 12px 20px; gap: 10px; }
    .nav { flex-wrap: wrap; justify-content: center; }
    .page-banner, .features, .drug-grid, .news-grid, .content-section, .notice-bar { margin-left: 16px; margin-right: 16px; padding-left: 20px; padding-right: 20px; }
    .drug-card, .news-card, .feature-box { width: 100%; }
}