/* =====================================
   源查询 - 自定义样式
   ===================================== */

/* 全局 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f6fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
main {
    flex: 1;
}

/* 首页搜索区 */
.hero-search {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 16px 0;
    text-align: center;
    border-radius: 10px;
    margin-bottom: 20px;
}

/* 工具卡片网格 */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 10px;
}

.tool-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 10px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    transition: all 0.2s ease;
    min-height: 100px;
}
.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    border-color: #667eea;
    color: #333;
}
.tool-icon {
    font-size: 28px;
    margin-bottom: 6px;
}
.tool-name {
    font-size: 13px;
    text-align: center;
    line-height: 1.3;
}

/* 分类标题 */
.category-section {
    margin-bottom: 32px;
}
.category-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e8e8e8;
}

/* 工具页面 */
.tool-container {
    max-width: 800px;
    margin: 0 auto;
}
.tool-box {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.tool-box h1 {
    font-size: 24px;
    margin-bottom: 6px;
}
.tool-desc {
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}
.result-box {
    background: #f0f4ff;
    border-radius: 10px;
    padding: 20px;
    margin-top: 16px;
    display: none;
}
.result-box.show {
    display: block;
}
.result-item {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px dashed #ddd;
}
.result-item:last-child {
    border-bottom: none;
}
.result-label {
    color: #888;
    font-weight: 500;
}
.result-value {
    font-weight: 600;
    color: #333;
}

/* FAQ 区 */
.faq-section {
    margin-top: 30px;
}
.faq-section h3 {
    font-size: 18px;
    margin-bottom: 14px;
}
.faq-item {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}
.faq-item:last-child {
    border-bottom: none;
}
.faq-q {
    font-weight: 600;
    color: #333;
    cursor: pointer;
}
.faq-a {
    color: #666;
    font-size: 14px;
    margin-top: 4px;
}

/* 相关工具 */
.related-tools {
    margin-top: 30px;
}
.related-tools h3 {
    font-size: 18px;
    margin-bottom: 14px;
}

/* 错误提示 */
.alert-tip {
    display: none;
}
.alert-tip.show {
    display: block;
}

/* =====================================
   顶部多行导航
   ===================================== */
.site-nav { flex-wrap: wrap; }
.site-nav .site-nav-wrap { flex-wrap: wrap; align-items: stretch; }
.site-nav .site-nav-row { display: flex; align-items: center; flex-wrap: wrap; width: 100%; }
.site-nav .navbar-toggler { margin-left: auto; }
.site-nav .site-nav-collapse { flex: 1 1 auto; min-width: 0; }
.site-nav .site-nav-cats {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
    min-width: 0;
    padding: 0 10px;
}
.site-nav .site-cat-row {
    display: flex;
    align-items: stretch;
    flex: 1 1 0;
    gap: 1px;
    min-height: 17px;
    width: 100%;
}
.site-nav .site-cat-row > .site-cat { flex: 1 1 0; min-width: 0; }
.site-nav .site-cat { position: relative; display: flex; }
.site-nav .site-cat-link {
    display: flex;
    flex: 1 1 auto;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,.92);
    text-decoration: none;
    font-size: 13px;
    line-height: 15px;
    padding: 1px 6px;
    border-radius: 4px;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.site-nav .site-cat-link:hover,
.site-nav .site-cat.show > .site-cat-link { background: rgba(255,255,255,.16); color: #fff; }
.site-nav .site-cat-link.site-cat-home {
    flex: 0 0 auto;
    margin: 0 auto;
    padding: 1px 16px;
    background: #fff;
    color: #0d6efd;
    font-weight: 700;
    box-shadow: 0 1px 3px rgba(0,0,0,.22);
}
.site-nav .site-cat-link.site-cat-home:hover { background: #f1f6ff; color: #0a58ca; }
.site-nav .dropdown-menu { max-height: 70vh; overflow-y: auto; }
.site-nav .dropdown-menu.multi { min-width: 420px; column-count: 2; column-gap: 6px; }
.site-nav .dropdown-menu.multi li { break-inside: avoid; }
.site-nav .dropdown-item { font-size: 13px; padding: 5px 14px; }
.site-nav .site-nav-search { align-items: center; }

@media (max-width: 991.98px) {
    .site-nav .site-nav-collapse { flex-basis: 100%; }
    .site-nav .site-nav-cats { gap: 2px; padding: 6px 0 0; }
    .site-nav .site-cat-row { flex: none; flex-direction: column; align-items: stretch; gap: 2px; min-height: 0; }
    .site-nav .site-cat-row > .site-cat { flex: none; width: 100%; }
    .site-nav .site-cat { width: 100%; }
    .site-nav .site-cat-link { width: 100%; padding: 8px 10px; line-height: 1.5; background: rgba(255,255,255,.06); }
    .site-nav .site-cat-link.site-cat-home { width: 100%; margin: 0; padding: 8px 10px; line-height: 1.5; }
    .site-nav .dropdown-menu {
        position: static;
        float: none;
        border: 0;
        box-shadow: none;
        background: rgba(0,0,0,.06);
        padding: 4px 0 8px 10px;
        max-height: none;
    }
    .site-nav .dropdown-menu.multi { min-width: 0; column-count: 1; }
    .site-nav .site-nav-search-mobile { padding: 8px 0 4px; }
}

/* 响应式 */
@media (max-width: 576px) {
    .tool-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 8px;
    }
    .tool-card {
        padding: 12px 6px;
        min-height: 80px;
    }
    .tool-icon {
        font-size: 22px;
    }
    .tool-name {
        font-size: 12px;
    }
    .tool-box {
        padding: 16px;
    }
}