/* =====================================================================
 * 12 公摊面积核算 · 视觉母题「平面图切分饼环」
 * ---------------------------------------------------------------------
 * 色板：藏青（--sa-pri #2c4a7c）+ 蓝调副色（--sa-pri2），
 * 基座中性色之外的「建筑图纸」质感；纯 CSS / SVG，零图片请求。
 * 版式：D 仪表盘中心舞台 —— 圆环居中，参数环绕四周。
 * 本页只作用于 .b11--shared 容器，不外溢到其它任何页面。
 * ===================================================================== */

.b11--shared {
    --sa-pri: #2c4a7c;
    --sa-pri2: #4d7ab5;
    --sa-tint: #dfe7f3;
    --b11-pri: #2c4a7c;
    --b11-pri2: #4d7ab5;
    --b11-tint: #dfe7f3;
    --b11-bg: #eef0f4;
    --b11-bg2: #e0e4ec;
    --b11-card2: #f7f8fb;
    background-image:
        radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--b11-line2) 55%, transparent) 1px, transparent 0),
        linear-gradient(to right, color-mix(in srgb, var(--b11-line2) 22%, transparent) 1px, transparent 1px);
    background-size: 24px 24px, 120px 120px;
}
:root[data-theme="dark"] .b11.b11--shared {
    --sa-pri: #7d9fd4;
    --sa-pri2: #9dbce6;
    --sa-tint: #1d2942;
    --b11-pri: #7d9fd4;
    --b11-pri2: #9dbce6;
    --b11-tint: #1d2942;
    --b11-bg: #12151b;
    --b11-bg2: #191e27;
    --b11-card2: #1c222c;
}

/* ---------- 首屏 ---------- */
.sa-hero { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); gap: 32px; align-items: center; }
.sa-hero .b11-h1 em { color: var(--sa-pri); }
.sa-hero .b11-lead b { box-shadow: inset 0 -.42em 0 var(--sa-tint); }
.sa-plan svg { display: block; width: 100%; height: auto; }

/* ---------- 版式 D：仪表盘中心舞台 ---------- */
.sa-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr) minmax(0, 1fr);
    grid-template-areas:
        "top    top    top"
        "left   core   right"
        "bottom bottom bottom";
    gap: 14px;
    align-items: stretch;
}
.sa-zone {
    background: var(--b11-card); border: 1px solid var(--b11-line);
    box-shadow: var(--b11-shadow); padding: 16px 18px;
    display: flex; flex-direction: column; gap: 12px; justify-content: center;
}
.sa-zone--top { grid-area: top; flex-direction: row; flex-wrap: wrap; gap: 14px; border-top: 4px solid var(--sa-pri); }
.sa-zone--top .b11-field { flex: 1 1 200px; }
.sa-zone--left { grid-area: left; border-left: 4px solid var(--sa-pri); }
.sa-zone--right { grid-area: right; border-right: 4px solid var(--sa-pri2); }
.sa-zone--bottom {
    grid-area: bottom; flex-direction: row; flex-wrap: wrap; align-items: flex-end;
    gap: 14px; border-bottom: 4px solid var(--sa-pri2);
}
.sa-zone--bottom .b11-field { flex: 1 1 240px; }
.sa-zone-acts { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; }

/* ---------- 中心圆环（母题） ---------- */
.sa-core {
    grid-area: core; position: relative;
    background: var(--b11-card); border: 1.5px solid var(--sa-pri);
    padding: 14px; display: flex; flex-direction: column; align-items: center; gap: 10px;
    clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}
.sa-core svg { display: block; width: min(300px, 100%); height: auto; }
.sa-core-legend { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
.sa-core-legend span { font-size: var(--b11-xs); color: var(--b11-sub); display: inline-flex; align-items: center; gap: 7px; }
.sa-core-legend b { font-family: var(--b11-mono); color: var(--sa-pri); }
.sa-core-legend .sw { width: 12px; height: 12px; display: inline-block; }
.sw--inner { background: var(--sa-pri); }
.sw--public { background: var(--sa-pri2); }

/* ---------- 区间提示 ---------- */
.sa-range { list-style: none; margin: 0; padding: 0; }
.sa-range li {
    position: relative; padding: 10px 0 10px 26px; font-size: var(--b11-sm);
    color: var(--b11-sub); border-bottom: 1px dotted var(--b11-line2); line-height: 1.75;
}
.sa-range li:last-child { border-bottom: 0; }
.sa-range li::before {
    content: ""; position: absolute; left: 0; top: 15px; width: 14px; height: 14px;
    border: 2px solid var(--sa-pri);
}
.sa-range li.is-hit::before { background: var(--sa-pri); }
.sa-range li b { color: var(--b11-ink); }

/* ---------- 批量清洗条 ---------- */
.sa-clean {
    display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px;
    margin-top: 14px; padding: 12px 14px; background: var(--b11-card2);
    border: 1px solid var(--b11-line); font-size: var(--b11-sm);
}
.sa-clean > b { color: var(--sa-pri); font-family: var(--b11-mono); font-size: var(--b11-xs); letter-spacing: .08em; }
.sa-clean code { margin-left: auto; }

/* ---------- 首屏紧凑化（主操作按钮留在首屏内） ---------- */
.sa-hero { gap: 24px; }
.sa-plan svg { max-width: 268px; margin: 0 auto; }
.sa-stage { gap: 11px; }
.sa-zone { padding: 13px 16px; gap: 9px; }
.sa-zone--top { gap: 11px; padding: 12px 16px; }
.sa-zone--bottom { padding: 11px 16px; }
.sa-zone-acts { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
    .sa-stage {
        grid-template-columns: minmax(0, 1fr);
        grid-template-areas: "core" "top" "left" "right" "bottom";
    }
    .sa-core { order: -1; }
    .sa-zone--top, .sa-zone--bottom { flex-direction: column; align-items: stretch; }
}
@media (max-width: 900px) {
    .sa-hero { grid-template-columns: minmax(0, 1fr); }
    .sa-clean code { margin-left: 0; }
}