/* 首页 / 电子书库 搜索区域：页签与搜索框共用外边框 */
.home-search-tabs {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
}

.home-search-nav {
    border: none;
    border-bottom: none !important;
    margin-bottom: 0;
    gap: 0;
    flex-wrap: nowrap;
}

.home-search-nav .nav-item {
    margin-bottom: 0;
}

.home-search-nav .nav-link {
    border: none;
    border-radius: 8px 8px 0 0;
    background: #f3f4f6;
    color: var(--text-secondary, #64748b);
    font-weight: 500;
    padding: 0.4rem 1.1rem;
    font-size: 0.875rem;
    margin-right: 0.25rem;
    margin-bottom: 0 !important;
    transition: color 0.2s ease, background 0.2s ease;
}

.home-search-nav .nav-link:focus,
.home-search-nav .nav-link:focus-visible {
    box-shadow: none;
    outline: none;
}

.home-search-nav .nav-link:hover:not(.active) {
    color: var(--primary-color, #205A28);
    background: #eceff2;
}

.home-search-nav .nav-link.active {
    color: var(--primary-color, #205A28);
    background: #fff;
    border: 1px solid var(--home-search-border, #d1d9e0);
    border-bottom: 1px solid #fff;
    border-radius: 8px 8px 0 0;
    margin-bottom: -1px;
    position: relative;
    z-index: 2;
}

.home-search-tab-content {
    border: 1px solid var(--home-search-border, #d1d9e0);
    background: #fff;
    position: relative;
    z-index: 1;
}

.home-search-tab-content .search-bar-container {
    padding: 0;
}

.home-search-form {
    display: flex;
    align-items: stretch;
    margin: 0;
    box-shadow: none !important;
}

.home-search-input {
    flex: 1;
    border: none !important;
    border-radius: 0 !important;
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
    background: #fff;
    box-shadow: none !important;
}

.home-search-input:focus {
    border: none !important;
    box-shadow: none !important;
    outline: none;
}

.home-search-submit {
    border: none !important;
    border-left: 1px solid var(--home-search-border, #d1d9e0) !important;
    border-radius: 0 !important;
    padding: 0.875rem 2rem;
    font-weight: 500;
    background: #f3f4f6 !important;
    color: #374151 !important;
    white-space: nowrap;
}

.home-search-submit:hover {
    background: #e8eaed !important;
    color: #111827 !important;
}

.home-search-submit:active {
    background: #dfe3e8 !important;
}

.home-ai-search-panel {
    height: 420px;
    padding: 0.75rem;
}

.home-ai-search-panel .ai-chat-root {
    height: 100%;
}

.home-ai-search-panel .ai-chat-card {
    border-radius: 0;
    box-shadow: none;
    border: 1px solid #e8e8e8;
}

.home-ai-search-panel .ai-messages {
    min-height: 260px;
    max-height: 300px;
}

body:has(.home-search-section) .ai-fab {
    display: none !important;
}

@media (max-width: 768px) {
    .home-search-nav .nav-link {
        padding: 0.35rem 0.85rem;
        font-size: 0.8125rem;
    }

    .home-search-form {
        flex-direction: column;
    }

    .home-search-input {
        border-bottom: 1px solid var(--home-search-border, #d1d9e0) !important;
    }

    .home-search-submit {
        width: 100%;
        border-left: none !important;
    }
}