/* top-nav.css — 完整导航样式 */

.top-nav {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
}

.top-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}
.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 10px;
    color: var(--gray);
    letter-spacing: 1px;
    margin-top: -2px;
}

.nav-links {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: #444;
    font-size: 14px;
    padding: 8px 14px;
    border-radius: 8px;
    transition: all 0.2s;
    white-space: nowrap;
}

.nav-links a:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.nav-links a.active {
    background: var(--primary);
    color: var(--white);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .top-nav {
        padding: 0 12px;
    }
    .top-nav-inner {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 0;
        gap: 8px;
        justify-content: center;
    }
    .logo-text {
        font-size: 15px;
    }
    .logo-sub {
        font-size: 9px;
    }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
        width: 100%;
    }
    .nav-links a {
        font-size: 12px;
        padding: 5px 10px;
    }
}

@media (max-width: 580px) {
    .top-nav-inner {
        flex-direction: column;
        align-items: center;
        padding: 8px 0;
    }
    .logo {
        margin-bottom: 4px;
    }
    .nav-links a {
        font-size: 11px;
        padding: 4px 8px;
    }
}