/* 产品、供应商、采购列表共用的地区筛选组件 */
body main .region-filter.region-filter {
    display: block !important;
    position: relative;
    padding: 0 !important;
    min-height: 0;
    background: #fff;
    border: 1px solid rgba(204, 204, 204, 0.45) !important;
    border-top: 0 !important;
}

body main .region-filter.is-open {
    z-index: 80;
}

body main.product .section4 > .bx,
body main.purchase .section2 > .bx,
body main.shops.vendor-list-page .section6 > .bx {
    overflow: visible;
}

body main .region-filter .region-filter__primary {
    display: flex;
    align-items: center;
    min-height: 54px;
    padding: 10px 20px;
}

body main .region-filter .region-filter__label {
    flex: 0 0 62px;
    margin: 0 !important;
    line-height: 32px !important;
    font-weight: 700 !important;
    color: #333;
}

body main.product .section4 > .bx > .flex > .tit,
body main.shops.vendor-list-page .section6 > .bx > .flex > .tit,
body main.purchase .section2 > .bx > .flex > .tit {
    font-weight: 700;
}

body main.shops.vendor-list-page .section6 .flex_box2 .ul_box a {
    font-weight: 600;
}

.region-filter__modes {
    display: flex;
    align-items: center;
    gap: 28px;
}

.region-filter__toggle,
.region-filter__direct {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 32px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #333;
    font: inherit;
    line-height: 32px;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.region-filter__toggle:hover,
.region-filter__toggle:focus-visible,
.region-filter__toggle.is-active,
.region-filter__direct:hover,
.region-filter__direct:focus-visible,
.region-filter__direct.is-active {
    color: var(--brand-primary, #1677ff);
}

.region-filter__toggle:focus-visible,
.region-filter__direct:focus-visible {
    outline: 2px solid rgba(22, 119, 255, 0.35);
    outline-offset: 4px;
    border-radius: 3px;
}

.region-filter__chevron {
    width: 9px;
    height: 9px;
    margin-top: -4px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.2s ease, margin 0.2s ease;
}

.region-filter.is-open .region-filter__chevron {
    margin-top: 4px;
    transform: rotate(225deg);
}

body main .region-filter .region-filter__options {
    position: absolute;
    z-index: 90;
    top: calc(100% + 8px);
    left: 82px;
    display: grid;
    grid-template-columns: repeat(4, minmax(130px, 1fr));
    gap: 10px 28px;
    width: min(760px, calc(100% - 102px));
    min-height: 0;
    max-height: min(560px, 70vh);
    overflow-y: auto;
    box-sizing: border-box;
    padding: 18px 20px;
    border: 1px solid #e4e7eb;
    border-top: 3px solid var(--brand-primary, #1677ff);
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 14px 34px rgba(31, 41, 55, 0.18);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

body main .region-filter.is-open .region-filter__options {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.region-filter__options a {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    color: #333;
    line-height: 28px;
    font-weight: 600;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.region-filter__options a:hover,
.region-filter__options a.is-active {
    color: var(--brand-primary, #1677ff);
}

/* 供应商筛选卡片本身已有内边距，不再叠加地区行的边框和缩进。 */
body main.shops.vendor-list-page .region-filter.region-filter {
    border: 0 !important;
}

body main.shops.vendor-list-page .region-filter .region-filter__primary {
    min-height: 40px;
    padding: 5px 0;
}

body main.shops.vendor-list-page .region-filter .region-filter__label {
    flex-basis: 85px;
    width: 85px !important;
    line-height: 30px !important;
}

body main.shops.vendor-list-page .region-filter .region-filter__options {
    left: 85px;
    width: min(760px, calc(100% - 85px));
}

/* 采购页其余筛选行使用 15px 左右内边距，地区行保持一致。 */
body main.purchase .region-filter .region-filter__primary {
    padding-right: 15px;
    padding-left: 15px;
}

body main.purchase .region-filter .region-filter__options {
    left: 77px;
    width: min(760px, calc(100% - 92px));
}

/* 产品、供应商、采购列表共用的平面表格式筛选面板，仅统一样式。 */
body main .catalog-filter-panel.catalog-filter-panel {
    padding: 0 !important;
    overflow: visible;
    box-sizing: border-box;
    border: 1px solid #e3e6e8 !important;
    border-radius: 0 !important;
    background: #fff;
    box-shadow: none !important;
}

body main .catalog-filter-panel > .flex:not(.region-filter) {
    min-height: 66px;
    box-sizing: border-box;
    padding: 15px 22px !important;
    border: 0 !important;
    background: #fff !important;
}

body main .catalog-filter-panel > .flex:not(:last-child) {
    border-bottom: 1px solid #e3e6e8 !important;
}

body main .catalog-filter-panel > .flex:not(.region-filter) > .tit {
    flex: 0 0 72px !important;
    width: 72px !important;
    margin: 0 20px 0 0 !important;
    color: #202124;
    font-weight: 700 !important;
    line-height: 34px !important;
}

body main .catalog-filter-panel > .flex_box1 {
    align-items: center !important;
}

body main .catalog-filter-panel > .flex_box2,
body main .catalog-filter-panel > .flex_box4 {
    align-items: flex-start !important;
}

body main .catalog-filter-panel > .flex_box2 > ul,
body main .catalog-filter-panel > .flex_box4 > ul {
    display: flex;
    flex: 1;
    flex-wrap: wrap;
    gap: 8px 28px !important;
    overflow: visible;
}

body main .catalog-filter-panel > .flex_box2 > ul a,
body main .catalog-filter-panel > .flex_box4 > ul a {
    margin: 0 !important;
    font-weight: 400 !important;
    line-height: 34px !important;
}

body main .catalog-filter-panel > .flex_box1 form {
    display: flex;
    width: min(312px, 100%);
    height: 36px !important;
    overflow: hidden;
    box-sizing: border-box;
    border: 1px solid #dfe3e6 !important;
    border-radius: 6px !important;
    background: #fff;
}

body main .catalog-filter-panel > .flex_box1 form input {
    flex: 1;
    min-width: 0;
    height: 34px;
    box-sizing: border-box;
    padding: 0 14px !important;
    line-height: 34px;
}

body main .catalog-filter-panel > .flex_box1 form button {
    flex: 0 0 40px;
    width: 40px;
    height: 34px;
    color: #111;
    background: transparent;
}

body main .catalog-filter-panel > .region-filter.region-filter {
    min-height: 66px;
    border: 0 !important;
    background: #fff;
}

body main .catalog-filter-panel > .region-filter .region-filter__primary {
    min-height: 66px !important;
    box-sizing: border-box;
    padding: 15px 22px !important;
}

body main .catalog-filter-panel > .region-filter .region-filter__label {
    flex: 0 0 72px !important;
    width: 72px !important;
    margin: 0 20px 0 0 !important;
    color: #202124;
    font-weight: 700 !important;
    line-height: 34px !important;
}

body main .catalog-filter-panel > .region-filter .region-filter__toggle,
body main .catalog-filter-panel > .region-filter .region-filter__direct {
    min-height: 34px;
    font-weight: 400;
    line-height: 34px;
}

body main .catalog-filter-panel > .region-filter .region-filter__options {
    left: 114px !important;
    width: min(760px, calc(100% - 136px)) !important;
}

body main .catalog-filter-panel > .flex:last-child {
    border-bottom: 0 !important;
}

@media (max-width: 768px) {
    body main .catalog-filter-panel > .flex:not(.region-filter),
    body main .catalog-filter-panel > .region-filter .region-filter__primary {
        min-height: 56px !important;
        padding: 11px 12px !important;
    }

    body main .catalog-filter-panel > .flex:not(.region-filter) > .tit,
    body main .catalog-filter-panel > .region-filter .region-filter__label {
        flex-basis: 58px !important;
        width: 58px !important;
        margin-right: 12px !important;
    }

    body main .catalog-filter-panel > .flex_box1 form {
        flex: 1;
        width: auto;
        max-width: 312px;
    }

    body main .region-filter .region-filter__primary {
        padding: 9px 12px;
    }

    .region-filter__modes {
        gap: 22px;
    }

    body main .region-filter .region-filter__options,
    body main.shops.vendor-list-page .region-filter .region-filter__options,
    body main.purchase .region-filter .region-filter__options,
    body main .catalog-filter-panel > .region-filter .region-filter__options {
        right: 12px;
        left: 12px !important;
        grid-template-columns: repeat(2, minmax(120px, 1fr));
        gap: 8px 18px;
        width: auto !important;
        padding: 14px;
    }
}

@media (max-width: 520px) {
    body main .region-filter .region-filter__options {
        grid-template-columns: minmax(0, 1fr);
    }

    .region-filter__options a {
        white-space: normal;
    }
}

@media (prefers-reduced-motion: reduce) {
    .region-filter__toggle,
    .region-filter__direct,
    .region-filter__chevron,
    .region-filter__options,
    .region-filter__options a {
        transition: none;
    }
}