/* 常见问题页 */
.problem-page {
    position: relative;
    min-height: 100vh;
    background: #F5F7FA;
}

.problem-top {
    position: relative;
    padding-top: calc(86px * var(--layout-scale));
    box-sizing: border-box;
}

.problem-top-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(476px * var(--layout-scale));
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.problem-top-bg img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.problem-list-section {
    position: relative;
    z-index: 1;
    padding: calc(280px * var(--layout-scale)) 0 calc(80px * var(--layout-scale));
    box-sizing: border-box;
}

.problem-list-inner {
    width: calc(1440px * var(--layout-scale));
    max-width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
}

.problem-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: calc(24px * var(--layout-scale));
}

.problem-card {
    background: #FFFFFF;
    border-radius: calc(16px * var(--layout-scale));
    padding: calc(40px * var(--layout-scale)) calc(24px * var(--layout-scale));
    box-sizing: border-box;
}

.problem-card-head {
    display: flex;
    align-items: center;
    gap: calc(16px * var(--layout-scale));
}

.problem-card-icon {
    flex-shrink: 0;
    display: block;
    width: calc(40px * var(--layout-scale));
    height: calc(40px * var(--layout-scale));
}

.problem-card-title {
    margin: 0;
    flex: 1;
    min-width: 0;
    font-size: calc(24px * var(--font-scale));
    font-weight: bold;
    color: #070B12;
    line-height: calc(34px * var(--layout-scale));
}

.problem-card-divider {
    margin: calc(20px * var(--layout-scale)) 0;
    height: calc(1px * var(--layout-scale));
    background: #E2E7F0;
}

.problem-card-body {
    font-size: calc(16px * var(--font-scale));
    font-weight: 400;
    color: #2D3440;
    line-height: calc(26px * var(--layout-scale));
}

.problem-card-body p {
    margin: 0;
}

.problem-card-body p+p {
    margin-top: calc(12px * var(--layout-scale));
}

.problem-card-body strong {
    font-weight: 500;
    color: #070B12;
}

.problem-card-body ul {
    margin: calc(8px * var(--layout-scale)) 0 0;
    padding-left: calc(20px * var(--layout-scale));
}

.problem-card-body li {
    margin-top: calc(6px * var(--layout-scale));
}

.problem-card-body li:first-child {
    margin-top: 0;
}

.problem-card-mock-note {
    margin-bottom: calc(12px * var(--layout-scale));
    padding: calc(8px * var(--layout-scale)) calc(12px * var(--layout-scale));
    background: #F5F8FF;
    border-radius: calc(6px * var(--layout-scale));
    color: #5C6573;
}

/* 分页（复用 news 结构） */
.problem-page .news-pagination {
    margin-top: calc(24px * var(--layout-scale));
}

/* ≤1200px 平板 / 小屏桌面 */
@media (max-width: 1200px) {
    .problem-top-bg {
        height: 340px;
    }

    .problem-list-section {
        padding: 200px 0 52px;
    }

    .problem-list-inner {
        width: 100%;
        padding: 0 40px;
    }

    .problem-list {
        gap: 16px;
    }

    .problem-card {
        padding: 26px 18px;
        border-radius: 12px;
    }

    .problem-card-head {
        gap: 12px;
    }

    .problem-card-icon {
        width: 32px;
        height: 32px;
    }

    .problem-card-title {
        font-size: 20px;
        line-height: 28px;
    }

    .problem-card-divider {
        margin: 14px 0;
    }

    .problem-card-body {
        font-size: 14px;
        line-height: 22px;
    }

    .problem-card-body p+p {
        margin-top: 10px;
    }

    .problem-card-body ul {
        margin-top: 8px;
        padding-left: 18px;
    }

    .problem-card-body li {
        margin-top: 5px;
    }

    .problem-page .news-pagination {
        justify-content: center;
        gap: 6px;
        margin-top: 18px;
    }

    .problem-page .news-pagination-total,
    .problem-page .news-pagination-size,
    .problem-page .news-pagination-pages a,
    .problem-page .news-pagination-pages span,
    .problem-page .news-pagination-jump {
        font-size: 14px;
    }

    .problem-page .news-pagination-pages a,
    .problem-page .news-pagination-pages span {
        min-width: 28px;
        height: 28px;
        padding: 3px 8px;
    }
}

/* ≤800px 移动端 */
@media (max-width: 800px) {
    .problem-top {
        padding-top: 64px;
    }

    .problem-top-bg {
        height: 240px;
    }

    .problem-list-section {
        padding: 132px 0 40px;
    }

    .problem-list-inner {
        padding: 0 16px;
    }

    .problem-list {
        gap: 12px;
    }

    .problem-card {
        padding: 18px 14px;
        border-radius: 10px;
    }

    .problem-card-head {
        align-items: flex-start;
        gap: 10px;
    }

    .problem-card-icon {
        width: 28px;
        height: 28px;
        margin-top: 2px;
    }

    .problem-card-title {
        font-size: 16px;
        line-height: 24px;
    }

    .problem-card-divider {
        margin: 12px 0;
    }

    .problem-card-body {
        font-size: 13px;
        line-height: 20px;
    }

    .problem-card-body p+p {
        margin-top: 8px;
    }

    .problem-card-body ul {
        margin-top: 6px;
        padding-left: 16px;
    }

    .problem-card-body li {
        margin-top: 4px;
    }

    .problem-page .news-pagination {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        margin-top: 14px;
    }

    .problem-page .news-pagination-total {
        width: 100%;
        text-align: center;
    }

    .problem-page .news-pagination-size,
    .problem-page .news-pagination-btn,
    .problem-page .news-pagination-pages,
    .problem-page .news-pagination-jump {
        font-size: 13px;
    }

    .problem-page .news-pagination-pages {
        flex-wrap: wrap;
        justify-content: center;
        gap: 5px;
    }

    .problem-page .news-pagination-pages a,
    .problem-page .news-pagination-pages span {
        min-width: 26px;
        height: 26px;
        padding: 2px 6px;
        font-size: 13px;
    }

    .problem-page .news-pagination-jump input {
        width: 46px;
        height: 28px;
        font-size: 13px;
    }

    .problem-page~.side-float {
        display: none;
    }
}