/* ===== 全局样式 ===== */
        * { margin: 0; padding: 0; box-sizing: border-box; }

        body {
            background: var(--bg-body);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            transition: background 0.4s ease, color 0.3s ease;
        }
        a { text-decoration: none; color: inherit; }
        @keyframes fadeIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:translateY(0); } }
        body { animation: fadeIn 0.6s ease-out; }

        ::-webkit-scrollbar { width: 6px; background: var(--scrollbar-track); }
        ::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--accent); }

        /* ===== 产品详情主体（容器） =====
           宽度与左右留白统一交给 common.css 的 .container
           （markup: product-detail.tpl.html:19 <div class="detail-page container">）。
           注意历史坑：模板输出的是 .detail-page，本选择器历史上误写成
           .product-detail-page，导致容器规则从未命中、整页内容顶到视口两侧。 */
        .detail-page {
            padding-top: 40px;
            padding-bottom: 60px;
        }
        .detail-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: var(--fs-14);
            margin-bottom: 28px;
            transition: var(--transition);
            cursor: pointer;
        }
        .detail-back:hover { color: var(--accent); }
        /* 语言建议行：浏览器语言与页面语言不一致、且存在另一语言版本时显示（见 generator.js langSuggestBlock） */
        .lang-suggest {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px 12px;
            padding: 10px 14px;
            margin-bottom: 22px;
            border: 1px solid var(--border-subtle);
            border-radius: 6px;
            background: var(--bg-hover);
            font-size: var(--fs-13);
            line-height: 1.6;
            color: var(--text-secondary);
        }
        .lang-suggest a {
            color: var(--accent);
            white-space: nowrap;
            transition: var(--transition);
        }
        .lang-suggest a:hover { opacity: 0.82; }
        .lang-suggest a i { font-size: var(--fs-11); margin-left: 6px; }

        /* ===== 顶部：左图右信息 ===== */
        .detail-top {
            display: flex;
            gap: 48px;
            margin-bottom: 40px;
            align-items: flex-start;
        }
        .detail-top .image-col {
            flex: 0 0 42%;
            background: #ffffff;
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            padding: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 340px;
        }
        .detail-top .image-col img {
            width: 100%;
            max-height: 400px;
            object-fit: contain;
        }
        .detail-top .image-col .placeholder {
            color: var(--text-secondary);
            font-size: var(--fs-14);
            opacity: 0.4;
        }

        .detail-top .info-col {
            flex: 1;
        }
        .detail-top .info-col .model {
            font-size: var(--fs-28);
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .detail-top .info-col .series {
            font-size: var(--fs-15);
            color: var(--accent);
            margin-bottom: 12px;
            display: inline-block;
            background: var(--bg-tag, rgba(59,130,246,0.1));
            padding: 2px 16px;
            border-radius: 20px;
        }
        .detail-top .info-col .desc {
            color: var(--text-secondary);
            font-size: var(--fs-15);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .detail-top .info-col .quick-specs {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 8px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 16px;
            padding: 18px 22px;
        }
        .detail-top .info-col .quick-specs .qs-item {
            display: flex;
            flex-direction: column;
            padding: 4px 0;
        }
        .detail-top .info-col .quick-specs .qs-item .qs-value {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--fs-18);
        }
        .detail-top .info-col .quick-specs .qs-item .qs-label {
            color: var(--text-secondary);
            font-size: var(--fs-12);
            font-weight: 400;
            letter-spacing: 0.3px;
        }

        /* ===== TAB 切换栏 ===== */
        .tab-bar {
            display: flex;
            gap: 0;
            border-bottom: 2px solid var(--border-subtle);
            margin-bottom: 30px;
            position: relative;
        }
        .tab-bar .tab-btn {
            padding: 14px 28px;
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: var(--fs-15);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            font-family: inherit;
        }
        .tab-bar .tab-btn:hover {
            color: var(--text-primary);
        }
        .tab-bar .tab-btn.active {
            color: var(--accent);
        }
        .tab-bar .tab-btn.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px 2px 0 0;
        }
        .tab-bar .tab-btn i {
            margin-right: 8px;
        }

        /* ===== Tab 内容容器 ===== */
        .tab-content {
            display: none;
            animation: fadeIn 0.4s ease;
        }
        .tab-content.active {
            display: block;
        }

        /* ===== 产品参数表格 ===== */
        .params-section h3 {
            font-size: var(--fs-18);
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-secondary);
            letter-spacing: 0.5px;
        }
        .params-table-wrap {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-subtle);
        }
        .params-table {
            width: 100%;
            border-collapse: collapse;
            font-size: var(--fs-14);
            min-width: 600px;
        }
        .params-table th,
        .params-table td {
            padding: 11px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border-light);
        }
        .params-table th {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--fs-13);
            background: var(--bg-hover);
            white-space: nowrap;
        }
        .params-table td {
            color: var(--text-primary);
        }
        .params-table tr:last-child th,
        .params-table tr:last-child td {
            border-bottom: none;
        }
        .params-table .cat-row th {
            background: rgba(59,130,246,0.06);
            color: var(--accent);
            font-weight: 600;
            font-size: var(--fs-13);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .params-table .cat-row td {
            background: rgba(59,130,246,0.06);
        }
        .params-table .param-name {
            color: var(--text-secondary);
            font-weight: 400;
            white-space: nowrap;
        }
        .params-table .param-value {
            color: var(--text-primary);
            font-weight: 500;
        }
        .params-table .param-value .unit {
            color: var(--text-secondary);
            font-weight: 400;
            font-size: var(--fs-12);
            margin-left: 2px;
        }

        /* ===== 外形尺寸 & 分析图 ===== */
        .image-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 30px 0;
            min-height: 400px;
        }
        .image-content img {
            max-width: 100%;
            max-height: 600px;
            border-radius: 12px;
            border: 1px solid var(--border-subtle);
        }
        .image-content .no-image {
            color: var(--text-secondary);
            opacity: 1;
            font-size: var(--fs-16);
            text-align: center;
        }
        .image-content .no-image-placeholder {
            display: block;
            width: min(100%, 520px);
            max-height: 340px;
            object-fit: contain;
            opacity: 0.9;
        }
        .image-content .no-image p {
            margin-top: 12px;
            color: var(--text-muted);
            font-size: var(--fs-13);
        }
        .image-content .no-image i {
            font-size: var(--fs-56);
            display: block;
            margin-bottom: 16px;
        }

        /* ===== 解构图（三维拆解，独立 three.js 页面嵌入） =====
           深色舞台 + 右侧组件面板由 /teardown.html 自带样式，
           外层只负责画框、加载态与「全屏查看」入口。 */
        #tabTeardown { scroll-margin-top: 84px; }
        .teardown-shell {
            border: 1px solid var(--border-subtle);
            border-radius: 16px;
            overflow: hidden;
            background: #080c12;
        }
        .teardown-frame {
            position: relative;
            height: clamp(620px, 76vh, 900px);
            background: #0a0e17;
        }
        .teardown-iframe {
            position: absolute;
            inset: 0;
            display: block;
            width: 100%;
            height: 100%;
            border: 0;
            background: #0a0e17;
            color-scheme: dark;
        }
        .teardown-loader {
            position: absolute;
            inset: 0;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
            background:
                radial-gradient(ellipse 62% 52% at 46% 42%, rgba(32, 66, 97, 0.34), transparent 68%),
                #0a0e17;
            color: #758696;
            font-size: var(--fs-13);
            letter-spacing: 0.08em;
            transition: opacity 0.35s ease;
        }
        .teardown-loader p { margin: 0; }
        .teardown-frame.is-ready .teardown-loader {
            opacity: 0;
            pointer-events: none;
        }
        .teardown-spinner {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 1px solid rgba(112, 200, 255, 0.22);
            border-top-color: #70c8ff;
            animation: teardown-spin 1s linear infinite;
        }
        @keyframes teardown-spin { to { transform: rotate(360deg); } }
        .teardown-meta {
            display: flex;
            align-items: center;
            gap: 22px;
            padding: 13px 18px;
            border-top: 1px solid rgba(141, 183, 216, 0.14);
            background: #0b1119;
            color: #8fa0b0;
            font-size: var(--fs-13);
            line-height: 1.65;
        }
        .teardown-meta p { flex: 1; margin: 0; }
        .teardown-open {
            flex: none;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 7px 12px;
            border: 1px solid rgba(112, 200, 255, 0.32);
            border-radius: 7px;
            color: #70c8ff;
            white-space: nowrap;
            transition: var(--transition);
        }
        .teardown-open:hover {
            border-color: #70c8ff;
            background: rgba(112, 200, 255, 0.08);
            color: #9edcff;
        }
        .teardown-open i { font-size: var(--fs-11); }
        @media (max-width: 900px) {
            .teardown-frame { height: 78vh; min-height: 540px; }
            .teardown-meta { flex-direction: column; align-items: flex-start; gap: 10px; }
        }
        @media (max-width: 480px) {
            .teardown-frame { height: 74vh; min-height: 470px; }
            .teardown-meta { padding: 12px 14px; font-size: var(--fs-12); }
            .teardown-open { padding: 6px 10px; }
        }

        /* ===== Footer（与 industry.html 一致） ===== */
        .footer {
            background: var(--bg-footer);
            text-align: center;
            padding: 48px 20px 40px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: var(--fs-14);
            margin-top: 0;
            transition: background 0.4s ease, color 0.3s ease, border-color 0.3s ease;
        }
        .footer a {
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }
        .footer a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .footer-slogan {
            margin-top: 14px;
            font-size: var(--fs-13);
            letter-spacing: 0.5px;
            opacity: 0.7;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .detail-top { flex-direction: column; }
            .detail-top .image-col { flex: unset; width: 100%; min-height: 220px; }
            .detail-top .image-col img { max-height: 280px; }
            .detail-top .info-col .quick-specs { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 768px) {
            .detail-top .info-col .model { font-size: var(--fs-22); }
            .detail-top .info-col .quick-specs { grid-template-columns: 1fr 1fr; padding: 14px 16px; }
            .tab-bar .tab-btn { padding: 12px 16px; font-size: var(--fs-13); }
            .params-table { font-size: var(--fs-13); min-width: 480px; }
            .params-table th,
            .params-table td { padding: 8px 12px; }
        }
        @media (max-width: 480px) {
            .detail-top .image-col { min-height: 160px; padding: 12px; }
            .detail-top .info-col .quick-specs { grid-template-columns: 1fr 1fr; gap: 4px 12px; }
            .tab-bar .tab-btn { padding: 10px 6px; font-size: var(--fs-12); white-space: nowrap; }
            .tab-bar .tab-btn i { margin-right: 3px; }
            .params-table { font-size: var(--fs-12); min-width: 360px; }
            .params-table th,
            .params-table td { padding: 6px 10px; }
            .image-content { min-height: 250px; padding: 16px 0; }
        }