[v-cloak] {
        display: none;
    }

    /* ===== 科技简约容器（与公开链接页保持一致的设计令牌） ===== */
    .exam-show-container {
        min-height: 70vh;
        padding: 32px 24px 56px;
        box-sizing: border-box;
        color: var(--tech-text);
        /* 科技背景与 Element Plus 主色由 .ds-app 提供 */
    }

    /* 横版主卡片 */
    .exam-card {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 28px;
        background: var(--tech-panel);
        border: 1px solid var(--tech-line);
        border-top: 2px solid rgba(14, 165, 233, .55);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-lg);
    }

    .exam-grid {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 360px;
        gap: 24px;
        align-items: start;
    }

    .exam-main {
        display: flex;
        flex-direction: column;
        gap: 20px;
        min-width: 0;
    }

    .exam-aside {
        display: flex;
        flex-direction: column;
        gap: 16px;
        position: sticky;
        top: 20px;
    }

    /* ===== 面包屑 ===== */
    .breadcrumb-line {
        margin-bottom: 18px;
    }

    .back-link {
        display: inline-block;
        padding: 6px 14px;
        font-size: 13.5px;
        color: var(--tech-accent-strong);
        background: rgba(14, 165, 233, .08);
        border: 1px solid var(--tech-accent-glow);
        border-radius: var(--radius-pill);
        cursor: pointer;
        transition: background .2s ease, transform .2s ease;
    }

    .back-link:hover {
        background: rgba(14, 165, 233, .16);
        transform: translateX(-2px);
    }

    /* ===== 主栏：标题区 ===== */
    .exam-header {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
        padding-bottom: 16px;
        border-bottom: 1px solid var(--tech-line);
    }

    .exam-title {
        margin: 0;
        font-size: 26px;
        font-weight: 700;
        color: var(--tech-text);
        letter-spacing: .2px;
        line-height: 1.4;
    }

    /* 徽章：圆角胶囊（头部与价格同源 accessInfo 解析） */
    .access-badge.level-vip {
        flex-shrink: 0;
        padding: 4px 12px;
        font-size: 13px;
        font-weight: 500;
        line-height: 1.5;
        color: #0369a1;
        background: var(--tech-accent-soft);
        border: 1px solid rgba(14, 165, 233, .35);
        border-radius: var(--radius-pill);
        white-space: nowrap;
    }

    .cat-row {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
    }

    /* ===== 试卷说明 ===== */
    .exam-description {
        padding: 16px 18px;
        background: #eff6ff;
        border: 1px solid #bfdbfe;
        border-radius: var(--radius-md);
    }

    .description-title {
        font-size: 14px;
        font-weight: 600;
        color: #1d4ed8;
        margin-bottom: 8px;
    }

    .description-content {
        font-size: 13.5px;
        color: #475569;
        line-height: 1.7;
        word-break: break-word;
    }

    /* 试卷说明支持 Markdown：容器套用 github-markdown-css，需中和其默认 45px 内边距与 980px 最大宽度 */
    .description-content.markdown-body {
        padding: 0;
        margin: 0;
        max-width: none;
        background: transparent;
        font-size: 13.5px;
        color: #475569;
        line-height: 1.7;
        word-break: break-word;
    }

    .description-content.markdown-body> :first-child {
        margin-top: 0;
    }

    .description-content.markdown-body> :last-child {
        margin-bottom: 0;
    }

    .description-content.markdown-body img {
        max-width: 100%;
        height: auto;
    }

    .description-content.markdown-body table {
        display: block;
        overflow-x: auto;
    }

    /* ===== section 标题（左侧强调条） ===== */
    .section-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--tech-text);
        margin-bottom: 14px;
        padding-left: 10px;
        border-left: 3px solid var(--tech-accent);
        line-height: 1.4;
    }

    /* ===== 信息网格（浅色小面板） ===== */
    .exam-info-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .info-item {
        display: flex;
        flex-direction: column;
        gap: 4px;
        padding: 12px 14px;
        background: var(--tech-panel-2);
        border: 1px solid var(--tech-line);
        border-radius: var(--radius-md);
    }

    .info-label {
        font-size: 12px;
        color: var(--tech-text-2);
    }

    .info-value {
        font-size: 16px;
        font-weight: 600;
        color: var(--tech-text);
        font-variant-numeric: tabular-nums;
    }

    .info-value.highlight {
        color: var(--tech-accent-strong);
    }

    /* ===== 附件区 ===== */
    .att-row {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 0;
        border-bottom: 1px solid var(--tech-line);
    }

    .att-row:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .att-icon {
        width: 40px;
        height: 40px;
        border-radius: var(--radius-md);
        background: var(--tech-accent-soft);
        border: 1px solid var(--tech-accent-glow);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        flex-shrink: 0;
    }

    .att-name {
        flex: 1;
        min-width: 0;
        font-size: 14px;
        color: var(--tech-text);
        word-break: break-all;
    }

    .att-sub {
        font-size: 12px;
        color: var(--tech-text-2);
        margin-top: 2px;
    }

    /* 下载按钮：可下载 → 渐变主样式；禁止 → 次按钮描边 */
    .att-dl-btn.el-button {
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border: none;
        color: #ffffff;
        border-radius: var(--radius-md);
        box-shadow: 0 4px 12px rgba(14, 165, 233, .25);
        transition: transform .2s ease, box-shadow .2s ease;
    }

    .att-dl-btn.el-button:hover:not(.is-disabled) {
        transform: translateY(-2px);
        box-shadow: 0 8px 16px rgba(14, 165, 233, .32);
    }

    .att-dl-btn.el-button.att-dl-disabled {
        background: #ffffff;
        border: 1px solid var(--tech-line);
        color: var(--tech-text-2);
        box-shadow: none;
    }

    .att-empty {
        padding: 24px 0;
        text-align: center;
        color: var(--tech-text-2);
        font-size: 14px;
    }

    /* ===== 侧栏：商业化信息卡 ===== */
    .side-card {
        padding: 16px;
        background: var(--tech-panel-2);
        border: 1px solid var(--tech-line);
        border-radius: var(--radius-md);
    }

    .side-label {
        font-size: 12.5px;
        color: var(--tech-text-2);
        margin-bottom: 8px;
    }

    .side-price {
        font-size: 30px;
        font-weight: 800;
        letter-spacing: .5px;
        line-height: 1.2;
        font-variant-numeric: tabular-nums;
    }

    .side-price.price-paid {
        color: #f43f5e;
    }

    .side-price.price-member {
        color: var(--tech-accent-strong);
    }

    .side-price.price-free {
        color: #16a34a;
    }

    .side-sub {
        margin-top: 8px;
        font-size: 13px;
        color: var(--tech-text-2);
        line-height: 1.6;
    }

    .side-value {
        font-size: 14.5px;
        font-weight: 600;
        color: var(--tech-text);
        line-height: 1.6;
        word-break: break-all;
    }

    .benefit-list {
        display: grid;
        gap: 9px;
    }

    .benefit {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13.5px;
        color: var(--tech-text);
    }

    .benefit .check {
        flex-shrink: 0;
        width: 18px;
        height: 18px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 11px;
        font-weight: 700;
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border-radius: var(--radius-circle);
    }

    /* 查看试卷（预览）与开始答题并排 */
    .exam-actions {
        display: flex;
        align-items: stretch;
        gap: 12px;
    }

    .preview-exam-btn {
        flex: 1;
        padding: 14px 20px;
        font-size: 16px;
        font-weight: 600;
        color: var(--tech-accent-strong);
        background: var(--tech-accent-soft);
        border: 1px solid rgba(14, 165, 233, .40);
        border-radius: var(--radius-md);
        cursor: pointer;
        transition: background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
    }

    .preview-exam-btn:hover {
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border-color: transparent;
        transform: translateY(-1px);
    }

    /* 未满足查看条件：弱化为描边次按钮（点击仍提示查看条件） */
    .preview-exam-btn.is-locked {
        color: var(--tech-text-2);
        background: #ffffff;
        border-color: var(--tech-line);
    }

    .preview-exam-btn.is-locked:hover {
        color: var(--tech-text);
        background: var(--tech-panel-2);
        border-color: var(--tech-line);
        transform: none;
    }

    .preview-exam-hint {
        font-size: 12px;
        color: var(--tech-text-2);
        line-height: 1.6;
        text-align: center;
    }

    /* 渐变主按钮 */
    .start-exam-btn {
        flex: 1;
        padding: 14px 20px;
        font-size: 16px;
        font-weight: 600;
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border: none;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-brand);
        cursor: pointer;
        transition: transform .2s ease, box-shadow .2s ease;
    }

    .start-exam-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 24px rgba(14, 165, 233, .34);
    }

    .start-exam-btn:active {
        transform: translateY(-1px);
    }

    /* 温馨提示小卡 */
    .exam-tips {
        padding: 14px 16px;
        background: var(--tech-panel-2);
        border: 1px solid var(--tech-line);
        border-radius: var(--radius-md);
        text-align: left;
    }

    .tips-title {
        font-size: 13px;
        font-weight: 600;
        color: var(--tech-text);
        margin-bottom: 8px;
    }

    .tips-list {
        font-size: 12.5px;
        color: var(--tech-text-2);
        line-height: 1.8;
        padding-left: 18px;
        margin: 0;
    }

    /* ===== 开始答题确认弹窗（自定义科技风 modal） ===== */
    .confirm-mask {
        position: fixed;
        inset: 0;
        z-index: 2000;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 24px;
        background: rgba(15, 23, 42, .55);
        -webkit-backdrop-filter: blur(3px);
        backdrop-filter: blur(3px);
        overflow-y: auto;
    }

    .confirm-card {
        position: relative;
        width: 100%;
        max-width: 460px;
        margin: auto;
        background: var(--tech-panel);
        border-radius: var(--radius-xl);
        box-shadow: 0 24px 60px rgba(15, 23, 42, .30);
        overflow: hidden;
    }

    .confirm-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
    }

    .confirm-header {
        padding: 26px 24px 0;
        text-align: center;
    }

    .confirm-icon {
        width: 54px;
        height: 54px;
        margin: 0 auto 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 26px;
        border-radius: var(--radius-circle);
        background: linear-gradient(135deg, rgba(14, 165, 233, .16), rgba(99, 102, 241, .16));
        border: 1px solid var(--tech-accent-glow);
    }

    .confirm-title {
        font-size: 19px;
        font-weight: 700;
        color: var(--tech-text);
        line-height: 1.5;
    }

    .confirm-paper-title {
        padding: 14px 24px 0;
        font-size: 14px;
        font-weight: 600;
        color: var(--tech-accent-strong);
        text-align: center;
        line-height: 1.6;
        word-break: break-all;
    }

    .confirm-summary {
        margin: 16px 24px 0;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .confirm-summary-item {
        display: flex;
        flex-direction: column;
        gap: 3px;
        padding: 10px 12px;
        background: var(--tech-panel-2);
        border: 1px solid var(--tech-line);
        border-radius: var(--radius-md);
        min-width: 0;
    }

    .confirm-summary-item .c-label {
        font-size: 12px;
        color: var(--tech-text-2);
    }

    .confirm-summary-item .c-value {
        font-size: 14px;
        font-weight: 600;
        color: var(--tech-text);
        word-break: break-all;
    }

    .confirm-footer {
        display: flex;
        gap: 12px;
        padding: 20px 24px 24px;
    }

    .confirm-btn {
        flex: 1;
        padding: 12px 18px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-md);
        cursor: pointer;
        transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .confirm-btn.secondary {
        color: var(--tech-text-2);
        background: #ffffff;
        border: 1px solid var(--tech-line);
    }

    .confirm-btn.secondary:hover {
        color: var(--tech-text);
        background: var(--tech-panel-2);
    }

    .confirm-btn.primary {
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border: none;
        box-shadow: var(--shadow-brand);
    }

    .confirm-btn.primary:hover:not(:disabled) {
        transform: translateY(-2px);
        box-shadow: 0 12px 24px rgba(14, 165, 233, .34);
    }

    .confirm-btn.primary:disabled {
        opacity: .7;
        cursor: not-allowed;
    }

    /* 确认弹窗过渡动画 */
    .confirm-fade-enter-active,
    .confirm-fade-leave-active {
        transition: opacity .22s ease;
    }

    .confirm-fade-enter-from,
    .confirm-fade-leave-to {
        opacity: 0;
    }

    .confirm-fade-enter-active .confirm-card,
    .confirm-fade-leave-active .confirm-card {
        transition: transform .24s ease;
    }

    .confirm-fade-enter-from .confirm-card,
    .confirm-fade-leave-to .confirm-card {
        transform: translateY(14px) scale(.97);
    }

    /* ===== 402 付费墙弹窗（自定义科技风 modal） ===== */
    .paywall-mask {
        position: fixed;
        inset: 0;
        z-index: 2000;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 24px;
        background: rgba(15, 23, 42, .55);
        -webkit-backdrop-filter: blur(3px);
        backdrop-filter: blur(3px);
        overflow-y: auto;
    }

    .paywall-card {
        position: relative;
        width: 100%;
        max-width: 480px;
        margin: auto;
        background: var(--tech-panel);
        border-radius: var(--radius-xl);
        box-shadow: 0 24px 60px rgba(15, 23, 42, .30);
        overflow: hidden;
    }

    .paywall-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
    }

    .paywall-header {
        padding: 26px 24px 0;
        text-align: center;
    }

    .paywall-icon {
        width: 54px;
        height: 54px;
        margin: 0 auto 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 26px;
        border-radius: var(--radius-circle);
        background: linear-gradient(135deg, rgba(14, 165, 233, .16), rgba(99, 102, 241, .16));
        border: 1px solid var(--tech-accent-glow);
    }

    .paywall-title {
        font-size: 19px;
        font-weight: 700;
        color: var(--tech-text);
        line-height: 1.5;
    }

    .paywall-desc {
        padding: 10px 24px 0;
        text-align: center;
        font-size: 13.5px;
        color: var(--tech-text-2);
        line-height: 1.7;
    }

    .paywall-benefits {
        margin: 18px 24px 0;
        padding: 14px 16px;
        display: grid;
        gap: 9px;
        background: var(--tech-panel-2);
        border: 1px solid var(--tech-line);
        border-radius: var(--radius-md);
    }

    .paywall-benefit {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13.5px;
        color: var(--tech-text);
    }

    .paywall-benefit .check {
        flex-shrink: 0;
        width: 18px;
        height: 18px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 11px;
        font-weight: 700;
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border-radius: var(--radius-circle);
    }

    .paywall-packs {
        margin: 16px 24px 0;
    }

    .paywall-packs-title {
        font-size: 13.5px;
        font-weight: 600;
        color: var(--tech-text);
        margin-bottom: 10px;
        padding-left: 9px;
        border-left: 3px solid var(--tech-accent);
        line-height: 1.2;
    }

    .paywall-pack {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 14px;
        background: #ffffff;
        border: 1px solid var(--tech-line);
        border-radius: var(--radius-md);
        transition: border-color .2s ease, box-shadow .2s ease;
    }

    .paywall-pack + .paywall-pack {
        margin-top: 10px;
    }

    .paywall-pack:hover {
        border-color: rgba(14, 165, 233, .45);
        box-shadow: 0 6px 16px rgba(15, 23, 42, .06);
    }

    .paywall-pack-main {
        flex: 1;
        min-width: 0;
    }

    .paywall-pack-name {
        font-size: 14px;
        font-weight: 600;
        color: var(--tech-text);
        margin-bottom: 4px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .paywall-pack-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 6px 14px;
        font-size: 12px;
        color: var(--tech-text-2);
    }

    .paywall-pack-side {
        flex-shrink: 0;
        text-align: right;
    }

    .paywall-pack-price {
        display: flex;
        align-items: baseline;
        justify-content: flex-end;
        gap: 6px;
        margin-bottom: 6px;
    }

    .paywall-pack-price .now {
        font-size: 16px;
        font-weight: 700;
        color: var(--tech-accent-strong);
        font-variant-numeric: tabular-nums;
    }

    .paywall-pack-price .was {
        font-size: 12px;
        color: #94a3b8;
        text-decoration: line-through;
    }

    .paywall-pack-btn {
        padding: 6px 14px;
        font-size: 12.5px;
        font-weight: 600;
        color: var(--tech-accent-strong);
        background: var(--tech-accent-soft);
        border: 1px solid rgba(14, 165, 233, .40);
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: background .2s ease, color .2s ease, border-color .2s ease;
    }

    .paywall-pack-btn:hover {
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border-color: transparent;
    }

    .paywall-footer {
        display: flex;
        gap: 12px;
        padding: 20px 24px 24px;
    }

    .paywall-btn {
        flex: 1;
        padding: 12px 18px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-md);
        cursor: pointer;
        transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .paywall-btn.secondary {
        color: var(--tech-text-2);
        background: #ffffff;
        border: 1px solid var(--tech-line);
    }

    .paywall-btn.secondary:hover {
        color: var(--tech-text);
        background: var(--tech-panel-2);
    }

    .paywall-btn.primary {
        color: #ffffff;
        background: linear-gradient(135deg, var(--tech-accent) 0%, var(--tech-accent-2) 100%);
        border: none;
        box-shadow: var(--shadow-brand);
    }

    .paywall-btn.primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 24px rgba(14, 165, 233, .34);
    }

    /* 付费墙弹窗过渡动画 */
    .paywall-fade-enter-active,
    .paywall-fade-leave-active {
        transition: opacity .22s ease;
    }

    .paywall-fade-enter-from,
    .paywall-fade-leave-to {
        opacity: 0;
    }

    .paywall-fade-enter-active .paywall-card,
    .paywall-fade-leave-active .paywall-card {
        transition: transform .24s ease;
    }

    .paywall-fade-enter-from .paywall-card,
    .paywall-fade-leave-to .paywall-card {
        transform: translateY(14px) scale(.97);
    }

    /* ===== 自适应：窄屏改为单栏堆叠 ===== */
    @media (max-width: 1024px) {
        .exam-grid {
            grid-template-columns: minmax(0, 1fr);
            gap: 20px;
        }

        .exam-aside {
            position: static;
            top: auto;
        }
    }

    @media (max-width: 640px) {
        .exam-show-container {
            padding: 20px 14px 40px;
        }

        .exam-card {
            padding: 18px;
            border-radius: var(--radius-lg);
        }

        .exam-title {
            font-size: 20px;
        }

        .exam-info-grid {
            grid-template-columns: 1fr;
            gap: 8px;
        }

        .confirm-mask,
        .paywall-mask {
            padding: 14px;
        }

        .confirm-card,
        .paywall-card {
            max-width: 100%;
            border-radius: var(--radius-lg);
        }

        .confirm-header,
        .paywall-header {
            padding: 22px 18px 0;
        }

        .confirm-paper-title,
        .paywall-desc {
            padding-left: 18px;
            padding-right: 18px;
        }

        .confirm-summary {
            margin-left: 18px;
            margin-right: 18px;
            grid-template-columns: 1fr;
        }

        .confirm-footer,
        .paywall-footer {
            flex-direction: column;
            padding: 18px 18px 20px;
        }

        .confirm-btn,
        .paywall-btn {
            width: 100%;
        }

        .paywall-benefits,
        .paywall-packs {
            margin-left: 18px;
            margin-right: 18px;
        }

        .paywall-pack {
            flex-direction: column;
            align-items: stretch;
        }

        .paywall-pack-side {
            text-align: left;
        }

        .paywall-pack-price {
            justify-content: flex-start;
        }

        .paywall-pack-btn {
            width: 100%;
        }

        .att-row {
            flex-wrap: wrap;
        }

        .exam-actions {
            gap: 10px;
        }
    }