/* 通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8b0000;      /* 深红色 - 中医传统色 */
    --secondary-color: #d4af37;    /* 金色 */
    --accent-color: #2d5016;       /* 深绿色 */
    --text-dark: #2c2c2c;
    --text-light: #666;
    --bg-light: #f9f6f1;          /* 米色背景 */
    --bg-white: #ffffff;
    --border-color: #e0d5c7;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(139,0,0,0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    background: var(--bg-white);
}

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

/* 导航栏 */
.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    border-bottom: 3px solid var(--primary-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo a,
.logo a:link,
.logo a:visited,
.logo a:hover,
.logo a:active {
    color: var(--primary-color);
    text-decoration: none !important;
    transition: opacity 0.3s;
}

.logo a:hover {
    opacity: 0.8;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu > li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 10px;
    border-radius: 4px;
    display: block;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(139, 0, 0, 0.05);
}

/* 二级下拉菜单 */
.nav-menu .dropdown {
    position: relative;
}

.nav-menu .dropdown > a {
    cursor: pointer;
    position: relative;
}

/* 隐藏箭头 - 使用更隐蔽的下拉指示 */
.nav-menu .dropdown > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid var(--text-dark);
    transition: all 0.3s ease;
    opacity: 0.6;
}

.nav-menu .dropdown:hover > a::after {
    border-top-color: var(--primary-color);
    transform: translateY(2px);
    opacity: 1;
}

.nav-menu .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--bg-white);
    min-width: 240px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.18);
    border-radius: 10px;
    padding: 15px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    list-style: none;
    border-top: 4px solid var(--primary-color);
    margin-top: 5px;
}

.nav-menu .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-menu .dropdown-menu li {
    padding: 0;
}

.nav-menu .dropdown-menu a {
    padding: 14px 25px;
    color: var(--text-dark);
    border-radius: 0;
    white-space: nowrap;
    font-size: 0.95rem;
    border-left: 3px solid transparent;
    transition: all 0.25s ease;
}

.nav-menu .dropdown-menu a:hover {
    background: linear-gradient(90deg, var(--bg-light) 0%, rgba(139, 0, 0, 0.05) 100%);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    padding-left: 28px;
}

.nav-menu .dropdown-menu a.active {
    background: var(--bg-light);
    color: var(--primary-color);
    font-weight: 600;
    border-left-color: var(--secondary-color);
}

/* Hero 区域 */
.hero {
    background: linear-gradient(135deg, rgba(139, 0, 0, 0.85), rgba(45, 80, 22, 0.85)),
                url('images/hero-tcm-traditional.jpg');
    background-size: cover;
    background-position: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    color: white;
    position: relative;
    border-bottom: 5px solid var(--secondary-color);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero .subtitle {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 按钮样式 */
.btn {
    padding: 14px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #c99c2e;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* 内容区块 */
.section {
    padding: 80px 0;
}

.section-light {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: var(--secondary-color);
    margin: 15px auto 0;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 20px auto 0;
}

/* 服务卡片网格 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border-top: 4px solid var(--primary-color);
}

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

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
}

.service-card ul {
    list-style: none;
    margin-top: 15px;
}

.service-card ul li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.service-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* 医生介绍卡片 */
.doctor-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    background: var(--bg-white);
    padding: 50px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin: 40px 0;
}

.doctor-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.doctor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.doctor-info h3 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 20px;
}

.doctor-info h4 {
    color: var(--secondary-color);
    font-size: 1.3rem;
    margin-bottom: 25px;
}

/* 内容盒子 */
.content-box {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.content-box h2 {
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 1.8rem;
}

.content-box h3 {
    color: var(--accent-color);
    margin: 25px 0 15px;
    font-size: 1.4rem;
}

.content-box ul {
    margin: 20px 0;
    padding-left: 30px;
}

.content-box ul li {
    margin: 12px 0;
    line-height: 1.8;
}

/* 联系表单 */
.contact-form {
    background: var(--bg-white);
    padding: 50px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 联系信息卡片 */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.contact-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 2px solid var(--border-color);
}

.contact-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.contact-item p {
    color: var(--text-dark);
    line-height: 1.8;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* 特色板块 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.feature-item {
    text-align: center;
    padding: 30px 20px;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 60px 0 20px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer h3 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin: 12px 0;
}

.footer a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: color 0.3s;
}

.footer a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.2);
    margin-top: 30px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 10px;
    }

    .doctor-card {
        grid-template-columns: 1fr;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }
}