/* css/header.css */

/* --- 头部导航栏样式 --- */
.site-header {
    background-color: #ffffff;
    width: 100%;
    border-bottom: 1px solid #ddd;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    flex-shrink: 0;
}

.header-container {
    max-width: 1240px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 35px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 1px;
    color: #000;
}

.category-nav {
    display: flex;
    gap: 25px;
}

.category-nav a {
    color: #555;
    font-size: 15px;
    padding: 22px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-bottom-color 0.2s;
}

.category-nav a:hover {
    color: #000;
}

.category-nav a.active {
    color: #000;
    font-weight: 500;
    border-bottom: 2px solid #000;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-right a { color: #555; font-size: 15px; }
.nav-right a:hover { color: #000; }
.nav-right a.icon { font-size: 20px; }