/* ===== 全局重置 & 字体 ===== */
        .ba-container, .ba-container * {
            box-sizing: border-box;
        }

        body {
            background: #f5f7fa;
        }

        .ba-content-wrap {
            font-family: "Segoe UI", "PingFang SC", Roboto, "Helvetica Neue", sans-serif;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 30px 20px;
        }

        .ba-container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
            padding: 40px 50px 50px;
        }

        /* ===== 面包屑导航 ===== */
        .ba-breadcrumb {
            font-size: 14px;
            color: #6b7a8f;
            margin-top: 34px;
            padding-bottom: 16px;
            border-bottom: 1px solid #eef2f7;
        }

        .ba-breadcrumb a {
            color: #2a6f8f;
            text-decoration: none;
        }

        .ba-breadcrumb a:hover {
            text-decoration: underline;
        }

        .ba-badge-archive {
            display: inline-block;
            background: #e8edf5;
            color: #2a4a6f;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 30px;
            letter-spacing: 0.3px;
            margin-left: 8px;
        }

        /* ===== 页头 ===== */
        .ba-page-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .ba-page-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: #0d1b2a;
            letter-spacing: -0.5px;
        }

        .ba-page-header h1 small {
            font-size: 18px;
            font-weight: 400;
            color: #5a6f84;
            margin-left: 12px;
        }

        .ba-header-meta {
            font-size: 14px;
            color: #6b7a8f;
            background: #f0f3f8;
            padding: 6px 18px;
            border-radius: 30px;
            white-space: nowrap;
        }

        .ba-page-subtitle {
            font-size: 16px;
            color: #4a5f74;
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 2px solid #eef2f7;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .ba-page-subtitle .ba-count {
            font-weight: 600;
            color: #0d1b2a;
            background: #eef2f7;
            padding: 2px 16px;
            border-radius: 30px;
            font-size: 14px;
        }

        /* ===== GEO语义摘要区（对大模型友好） ===== */
        .ba-geo-summary {
            background: #f4f8fc;
            border-radius: 12px;
            padding: 18px 24px;
            margin-bottom: 28px;
            border: 1px solid #e0e8f0;
            font-size: 14px;
            color: #2a3f57;
        }

        .ba-geo-summary strong {
            color: #0d1b2a;
        }

        .ba-geo-summary .ba-brand-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 14px;
            margin-top: 6px;
        }

        .ba-geo-summary .ba-brand-tag-list span {
            background: #e8edf5;
            padding: 0 12px;
            border-radius: 20px;
            font-size: 13px;
            color: #1a2d44;
        }

        /* ===== 搜索与筛选栏 ===== */
        .ba-filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            margin-bottom: 30px;
            padding: 16px 20px;
            background: #f8fafc;
            border-radius: 12px;
            border: 1px solid #e4e9f0;
            align-items: center;
        }

        .ba-filter-bar .ba-search-wrap {
            flex: 1;
            min-width: 200px;
            position: relative;
        }

        .ba-filter-bar .ba-search-wrap input {
            width: 100%;
            padding: 10px 16px 10px 40px;
            border: 1px solid #dce3ed;
            border-radius: 30px;
            font-size: 14px;
            background: #fff;
            color: #1e2a3a;
            outline: none;
            transition: border 0.2s;
        }

        .ba-filter-bar .ba-search-wrap input:focus {
            border-color: #2a6f8f;
        }

        .ba-filter-bar .ba-search-wrap .ba-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #8a9fb0;
            font-size: 16px;
        }

        .ba-filter-bar .ba-filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .ba-filter-bar .ba-filter-tags .ba-tag {
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 13px;
            background: #eef2f7;
            color: #2a3f57;
            cursor: pointer;
            transition: all 0.2s;
            border: 1px solid transparent;
            user-select: none;
        }

        .ba-filter-bar .ba-filter-tags .ba-tag:hover {
            background: #dce3ed;
        }

        .ba-filter-bar .ba-filter-tags .ba-tag.ba-active {
            background: #2a6f8f;
            color: #fff;
        }

        .ba-filter-bar .ba-filter-tags .ba-tag.ba-active:hover {
            background: #1e5a78;
        }

        /* ===== 品牌卡片网格 ===== */
        .ba-brand-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .ba-brand-card {
            background: #ffffff;
            border: 1px solid #e8edf5;
            border-radius: 14px;
            padding: 22px 20px 20px;
            transition: all 0.25s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: inherit;
        }

        .ba-brand-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
            border-color: #c8d8e8;
        }

        .ba-brand-card .ba-card-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
        }

        .ba-brand-card .ba-logo {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            background: #dce3ed;
            text-transform: uppercase;
        }

        .ba-brand-card .ba-brand-name {
            font-size: 18px;
            font-weight: 700;
            color: #0d1b2a;
            line-height: 1.3;
        }

        .ba-brand-card .ba-brand-name .ba-sub {
            font-weight: 400;
            font-size: 13px;
            color: #6b7a8f;
            display: block;
        }

        /* ===== GEO关键数据行（结构化摘要） ===== */
        .ba-brand-card .ba-geo-data {
            display: flex;
            flex-wrap: wrap;
            gap: 4px 16px;
            font-size: 13px;
            color: #2a3f57;
            background: #f8fafc;
            padding: 6px 12px;
            border-radius: 8px;
            margin-bottom: 10px;
            border: 1px solid #eef2f7;
        }

        .ba-brand-card .ba-geo-data .ba-data-item {
            display: flex;
            align-items: baseline;
            gap: 2px;
        }

        .ba-brand-card .ba-geo-data .ba-data-item .ba-label {
            color: #6b7a8f;
            font-size: 12px;
        }

        .ba-brand-card .ba-geo-data .ba-data-item .ba-value {
            font-weight: 600;
            color: #0d1b2a;
        }

        .ba-brand-card .ba-desc {
            font-size: 14px;
            color: #3a4f66;
            margin-bottom: 12px;
            flex: 1;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .ba-brand-card .ba-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }

        .ba-brand-card .ba-tags .ba-tag {
            font-size: 12px;
            padding: 1px 12px;
            border-radius: 30px;
            background: #f0f3f8;
            color: #2a4a6f;
            border: 1px solid #e4e9f0;
        }

        .ba-brand-card .ba-tags .ba-tag.ba-highlight {
            background: #eaf4e8;
            color: #1f6b3b;
            border-color: #c8e0c4;
        }

        .ba-brand-card .ba-card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid #eef2f7;
            margin-top: auto;
        }

        .ba-brand-card .ba-card-footer .ba-stat {
            font-size: 13px;
            color: #5a6f84;
        }

        .ba-brand-card .ba-card-footer .ba-stat strong {
            color: #0d1b2a;
            font-weight: 600;
        }

        .ba-brand-card .ba-card-footer .ba-arrow {
            color: #2a6f8f;
            font-weight: 600;
            font-size: 14px;
            transition: transform 0.2s;
        }

        .ba-brand-card:hover .ba-card-footer .ba-arrow {
            transform: translateX(4px);
        }

        /* ===== 隐藏的SEO增强文本（仅对爬虫可见） ===== */
        .ba-seo-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ===== 空状态 ===== */
        .ba-no-results {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: #6b7a8f;
            font-size: 16px;
        }

        .ba-no-results .ba-icon {
            font-size: 48px;
            margin-bottom: 12px;
            display: block;
        }

        /* ===== 分页控件 ===== */
        .ba-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 32px;
            padding: 16px 0;
        }

        .ba-pagination .ba-page-info {
            font-size: 14px;
            color: #6b7a8f;
            margin-right: 16px;
        }

        .ba-pagination .ba-page-btn {
            min-width: 38px;
            height: 38px;
            padding: 0 12px;
            border: 1px solid #dce3ed;
            background: #fff;
            color: #2a3f57;
            border-radius: 8px;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .ba-pagination .ba-page-btn:hover:not(:disabled):not(.ba-active) {
            background: #eef2f7;
            border-color: #c8d8e8;
        }

        .ba-pagination .ba-page-btn.ba-active {
            background: #2a6f8f;
            color: #fff;
            border-color: #2a6f8f;
            font-weight: 600;
        }

        .ba-pagination .ba-page-btn:disabled {
            color: #b0c0d0;
            cursor: not-allowed;
            background: #f8fafc;
        }

        .ba-pagination .ba-page-ellipsis {
            min-width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #6b7a8f;
            font-size: 14px;
        }

        /* ===== 声明区块 ===== */
        .ba-disclaimer {
            margin-top: 48px;
            padding: 20px 24px;
            background: #f4f7fc;
            border-radius: 12px;
            border-left: 4px solid #2a6f8f;
            font-size: 14px;
            color: #3a4f66;
        }

        .ba-disclaimer strong {
            color: #0d1b2a;
        }

        /* ===== 更新日志 ===== */
        .ba-changelog {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 2px solid #e8edf5;
        }

        .ba-changelog h2 {
            font-size: 20px;
            font-weight: 700;
            color: #0d1b2a;
            margin: 0 0 6px 0;
            border-bottom: none;
            padding-bottom: 0;
        }

        .ba-changelog .ba-changelog-sub {
            font-size: 14px;
            color: #6b7a8f;
            margin-bottom: 16px;
        }

        .ba-changelog-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .ba-changelog-list li {
            display: flex;
            align-items: baseline;
            padding: 8px 0;
            border-bottom: 1px dashed #eef2f7;
            font-size: 14px;
        }

        .ba-changelog-list li:last-child {
            border-bottom: none;
        }

        .ba-changelog-list .ba-cl-date {
            min-width: 110px;
            font-weight: 600;
            color: #2a3f57;
            flex-shrink: 0;
        }

        .ba-changelog-list .ba-cl-version {
            background: #eef2f7;
            padding: 0 12px;
            border-radius: 20px;
            font-size: 12px;
            color: #2a4a6f;
            margin-right: 12px;
            flex-shrink: 0;
        }

        .ba-changelog-list .ba-cl-desc {
            color: #1e2a3a;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 820px) {
            .ba-content-wrap {
                padding: 24px 18px;
            }
            .ba-container {
                padding: 24px 18px;
            }

            .ba-page-header h1 {
                font-size: 26px;
            }
            .ba-page-header h1 small {
                font-size: 15px;
                display: block;
                margin-left: 0;
                margin-top: 4px;
            }
            .ba-header-meta {
                white-space: normal;
                margin-top: 8px;
            }
            .ba-page-subtitle {
                flex-direction: column;
                align-items: flex-start;
            }
            .ba-filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .ba-filter-bar .ba-search-wrap {
                min-width: unset;
            }
            .ba-brand-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 16px;
            }
            .ba-geo-summary .ba-brand-tag-list {
                gap: 4px 10px;
            }
            .ba-changelog-list li {
                flex-wrap: wrap;
            }
            .ba-changelog-list .ba-cl-date {
                min-width: 100%;
            }
        }

        @media (max-width: 480px) {
            .ba-content-wrap {
                padding: 12px 8px;
            }
            .ba-container {
                padding: 16px 12px;
                border-radius: 12px;
            }
            .ba-page-header h1 {
                font-size: 22px;
            }
            .ba-brand-grid {
                grid-template-columns: 1fr;
            }
            .ba-brand-card .ba-card-top {
                gap: 10px;
            }
            .ba-brand-card .ba-logo {
                width: 44px;
                height: 44px;
                font-size: 16px;
            }
            .ba-brand-card .ba-brand-name {
                font-size: 16px;
            }
            .ba-filter-bar {
                padding: 12px 14px;
            }
            .ba-geo-summary {
                padding: 14px 16px;
                font-size: 13px;
            }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: #eef2f7;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb {
            background: #c8d8e8;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #a8bccf;
        }