/* grid-split 九宫格切图 —— 复用 life-calc 卡片结构，本文件只写专有类 */
#app {
    --gs-border: #e6e8ee;
    --gs-soft: #f5f6f8;
}
@media (max-width: 768px) {
    #app { padding: 0; }
}

.gs-lead { color: var(--text-secondary); font-size: 14px; line-height: 1.7; margin: 0 0 16px; }

.gs-drop {
    border: 2px dashed var(--gs-border);
    border-radius: 14px;
    padding: 28px 18px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
    background: #fff;
}
.gs-drop:hover, .gs-drop:focus { border-color: var(--primary); background: #f7f9ff; outline: none; }
.gs-drop-ico { color: var(--primary); margin-bottom: 8px; }
.gs-drop-t { font-size: 15px; font-weight: 600; color: var(--text); }
.gs-drop-s { font-size: 13px; color: var(--text-dim); margin-top: 4px; }

.gs-ops { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 16px; align-items: flex-end; }
.gs-op { display: flex; flex-direction: column; gap: 6px; }
.gs-op label { font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.gs-op select, .gs-op input {
    border: 1px solid var(--gs-border); border-radius: 9px; padding: 8px 10px;
    font-size: 14px; color: var(--text); background: #fff; outline: none; min-width: 96px;
}
.gs-op select:focus, .gs-op input:focus { border-color: var(--primary); }

.gs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 16px;
    border-top: 1px solid var(--gs-border);
    padding-top: 16px;
}
.gs-cell {
    border: 1px solid var(--gs-border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--gs-soft);
    display: flex; flex-direction: column;
}
.gs-cell canvas { display: block; width: 100%; height: auto; background:
    repeating-conic-gradient(#eee 0% 25%, #fff 0% 50%) 50% / 14px 14px; }
.gs-cell .gs-cap {
    font-size: 12px; color: var(--text-dim);
    padding: 5px 8px; text-align: center; border-top: 1px solid var(--gs-border);
    font-variant-numeric: tabular-nums;
}

.gs-notes { margin: 0; padding-left: 20px; color: var(--text-secondary); font-size: 14px; line-height: 1.9; }
.gs-notes li { margin-bottom: 4px; }
.gs-notes code {
    background: var(--gs-soft); border: 1px solid var(--gs-border);
    border-radius: 5px; padding: 1px 6px; font-size: 12.5px;
    font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--text);
}