/* 公共样式 */
.container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
.header {
    background: #8B0000;
    color: #fff;
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

.logo img {
    height: 50px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-item {
    position: relative;
    padding: 10px 0;
}

.nav-item:hover {
    color: #FFD700;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #FFD700;
    transition: width 0.3s;
}

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

/* 页脚样式 */
.footer {
    background: #8B0000;
    color: #fff;
    padding: 30px 0;
    margin-top: 50px;
}

.footer-inner {
    text-align: center;
}

.copyright {
    font-size: 12px;
    opacity: 0.8;
}

/* 通用标题样式 */
.section-title {
    text-align: center;
    margin: 40px 0;
    position: relative;
    font-size: 28px;
    color: #8B0000;
}

.section-title::before,
.section-title::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 100px;
    height: 2px;
    background: #8B0000;
}

.section-title::before {
    right: calc(50% + 80px);
}

.section-title::after {
    left: calc(50% + 80px);
}