/* ================================================================
   响应式适配：平板 / 手机 / 小屏手机
   ================================================================ */
@media (max-width: 820px) {
    html { font-size: 18px; overflow-y: auto; overscroll-behavior-y: auto; }
    body {
        padding: 10px;
        overflow-y: auto;
        overflow-x: hidden;
        overscroll-behavior-y: auto;
        -webkit-overflow-scrolling: touch;
        -webkit-text-size-adjust: 100%;
        height: auto;
    }

    .top-header { gap: 8px; margin-bottom: 8px; }
    .top-header .title-area {
        width: 100%;
        flex: 1 1 100%;
        gap: 8px;
        flex-wrap: nowrap;
    }
    .top-header .title-area h1 {
        font-size: 1rem;
        padding-left: 9px;
        border-left-width: 4px;
    }
    .global-stats-inline {
        flex: 1;
        min-width: 0;
        overflow-x: auto;
        overflow-y: hidden;
        max-height: 32px;
        padding: 2px 8px;
    }
    .top-header > .action-btns {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
    }
    .top-header > .action-btns .btn {
        width: 100%;
        padding-left: 6px;
        padding-right: 6px;
    }

    .app-container {
        display: flex !important;
        flex-direction: column !important;
        gap: 10px !important;
        height: auto !important;
        overflow: visible !important;
    }
    .board-area {
        display: contents !important;
        width: 100%;
        overflow: visible;
    }

    .board-toolbar {
        order: 2 !important;
        padding: 9px;
        gap: 7px;
        border-radius: 12px;
    }
    .board-toolbar .search-box { width: 100%; min-width: 0; flex: 1 1 100%; }
    .board-toolbar select { flex: 1; min-width: 0; }
    .board-toolbar .stats {
        margin-left: 0;
        justify-content: center;
        flex: 1;
        padding: 4px 8px;
        gap: 12px;
    }
    .board-toolbar .action-btns { flex: 0 0 auto; }

    .groups-scroll {
        order: 3 !important;
        padding: 8px 0;
        gap: 10px;
        overflow: visible;
    }
    .group-card { padding: 11px 12px 13px; border-radius: 14px; }
    .group-header { gap: 5px; font-size: .82rem; }
    .group-header .left { width: 100%; flex: 1 1 100%; }
    .group-header .color-tags { max-width: 100%; overflow-x: auto; padding-bottom: 2px; }

    .members-grid {
        display: flex !important;
        flex-direction: row !important;
        align-items: flex-start !important;
        gap: 8px !important;
        flex-wrap: nowrap !important;
        padding-top: 7px;
    }
    .members-grid .column {
        display: flex !important;
        flex-direction: column !important;
        flex: 1 1 0 !important;
        width: 0 !important;
        min-width: 0 !important;
        max-width: none !important;
        gap: 8px !important;
        align-self: flex-start !important;
    }
    .members-grid .person-card {
        width: 100% !important;
        min-width: 0 !important;
        max-width: none !important;
        height: auto !important;
        align-self: stretch !important;
        box-sizing: border-box !important;
        padding: 9px 11px;
        border-radius: 11px;
    }
    .person-name {
        font-size: .82rem;
        gap: 6px;
        line-height: 1.45;
        flex-wrap: nowrap !important;
    }
    .person-name .role-tag { font-size: .52rem; line-height: 19px; padding: 0 8px; }
    .person-tools { gap: 5px; margin-top: 5px; }
    .tool-card {
        height: 43px !important;
        min-height: 43px !important;
        box-sizing: border-box !important;
        padding: 0 12px 0 11px;
        font-size: .60rem;
        border-radius: 9px;
    }
    .tool-card .tc-name { font-size: .60rem; }
    .tool-card .tc-qty { font-size: .58rem; line-height: 22px; padding: 0 9px; min-width: 25px; }

    .tool-library {
        order: 1 !important;
        width: 100% !important;
        min-width: 0 !important;
        height: auto !important;
        max-height: none !important;
        padding: 10px 11px;
        border-radius: 14px;
    }
    .tool-library .lib-title { font-size: .72rem; padding-bottom: 6px; }
    .tool-library .lib-actions { margin-bottom: 6px; }
    .tool-library .lib-list {
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 7px !important;
        overflow: visible !important;
        padding: 6px 1px 4px !important;
    }
    .tool-library .lib-tool {
        width: 100% !important;
        min-width: 0 !important;
        max-width: none !important;
        box-sizing: border-box !important;
        min-height: 42px !important;
        padding: 7px 9px 7px 22px;
        font-size: .62rem;
    }
    .lib-tool .tool-name { font-size: .62rem; }
    .lib-tool .tool-stock { font-size: .54rem; line-height: 20px; padding: 0 6px; }
    .lib-tool .drag-area { width: 20px; }
    .lib-add-btn { margin-top: 4px; padding: 7px; }
    .trash-zone { margin-top: 6px; min-height: 42px; padding: 6px; }

    .bottom-io {
        order: 4 !important;
        width: 100% !important;
        box-sizing: border-box !important;
        justify-content: center !important;
        opacity: 1 !important;
        margin-top: 2px !important;
        padding: 10px 0 4px !important;
        border-top: 1px solid #eaf0f8 !important;
    }

    .modal-overlay { align-items: flex-start; padding: 10px; overflow-y: auto; }
    .modal-box {
        width: 100%;
        max-width: none;
        max-height: calc(100vh - 20px);
        padding: 20px 16px;
        border-radius: 18px;
        margin: auto 0;
    }
    .modal-actions { gap: 8px; }
    .modal-actions .btn { flex: 1; padding: 9px 10px; }

    .tool-date-item { flex-wrap: wrap; }
    .tool-date-item .td-date-input { width: 100%; }
    .modal-box .stock-item { flex-wrap: wrap; gap: 6px; }
    .modal-box .stock-item .si-input { width: 50px; }
    .gm-toolbar { flex-wrap: wrap; }

    .person-card,
    .group-card,
    .group-header .left,
    .group-header .group-name,
    .tool-card,
    .lib-tool,
    .color-tag,
    .gsi-item {
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        user-select: none;
    }

    .person-card, .group-card, .tool-card, .lib-tool, .color-tag, .gsi-item { touch-action: pan-y; }
    #toolLibrary { touch-action: pan-y; }
}

@media (min-width: 600px) and (max-width: 820px) {
    .tool-library .lib-list {
        grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
    }
    .members-grid { gap: 7px !important; }
}

@media (max-width: 500px) {
    .board-toolbar { flex-direction: row; align-items: center; }
    .board-toolbar .search-box { flex-basis: 100%; }
    .board-toolbar .stats { margin-left: 0; justify-content: center; flex: 1 1 auto; }

    .modal-box { padding: 24px 20px; }
    .modal-box .form-row { flex-direction: column; }
    .column { min-width: 80px; flex: 1 1 0; max-width: none; }

    .tool-date-item { flex-wrap: wrap; }
    .tool-date-item .td-date-input { width: 100%; }
    .modal-box .stock-item { flex-wrap: wrap; gap: 4px; }
    .modal-box .stock-item .si-input { width: 100%; }

    .top-header .title-area h1 { font-size: 1rem; padding-left: 10px; }
    .global-stats-inline .gsi-item { font-size: 0.45rem; padding: 0 4px 0 2px; }
    .group-header .color-tags .color-tag {
        font-size: 0.45rem;
        padding: 0 4px 0 2px;
        line-height: 16px;
    }
    .group-header .color-tags .color-tag .color-dot { width: 10px; height: 10px; }
    .group-header .left .badge { font-size: .48rem; padding: 0 8px; line-height: 19px; }

    .gm-rename-row { flex-wrap: wrap; }
    .gm-rename-row input { width: 100%; }
    .gm-toolbar .btn { font-size: 0.5rem; padding: 3px 10px; }
}