/* ==========================================================================
   124 · 空压机排气量与储气罐容积
   视觉概念：气源站 P&ID —— 冷蓝工控面板、圆形压力表、峰谷柱状图
   ========================================================================== */

:root {
    --ac-bg: #eef3f7;
    --ac-panel: #ffffff;
    --ac-panel-2: #e4ebf1;
    --ac-ink: #101820;
    --ac-ink-2: #3b4b58;
    --ac-muted: #74858f;
    --ac-line: #d5dfe6;
    --ac-line-2: #bdccd6;
    --ac-blue: #1c5c99;
    --ac-blue-2: #144872;
    --ac-blue-soft: #e2eef8;
    --ac-green: #16704f;
    --ac-green-soft: #e2f1ea;
    --ac-warn: #b34a12;
    --ac-warn-soft: #fbeade;
    --ac-bad: #a32f24;
    --ac-bad-soft: #fbe8e5;
    --ac-gauge-track: #dbe5ec;
    --ac-shadow: 0 1px 2px rgba(16, 24, 32, .05), 0 20px 44px -38px rgba(16, 24, 32, .5);
    --ac-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    --ac-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
    --ac-bg: #080d11;
    --ac-panel: #101a21;
    --ac-panel-2: #16232b;
    --ac-ink: #e5eef4;
    --ac-ink-2: #a3b4c0;
    --ac-muted: #71838f;
    --ac-line: #1d2b34;
    --ac-line-2: #2a3b46;
    --ac-blue: #62a8e8;
    --ac-blue-2: #8bc2f2;
    --ac-blue-soft: #0c2233;
    --ac-green: #55c193;
    --ac-green-soft: #0c2a20;
    --ac-warn: #e29a5e;
    --ac-warn-soft: #2a1c11;
    --ac-bad: #e08b7d;
    --ac-bad-soft: #261412;
    --ac-gauge-track: #1c2a33;
    --ac-shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 24px 48px -36px rgba(0, 0, 0, .95);
}

.ac-wrap {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 22px;
}

/* ---------------- 首屏 ---------------- */
.ac-hero {
    position: relative;
    padding: 20px 0 26px;
    background:
        radial-gradient(680px 300px at 88% -12%, var(--ac-blue-soft), transparent 70%),
        radial-gradient(420px 220px at 6% 8%, var(--ac-green-soft), transparent 72%),
        var(--ac-bg);
}
.ac-hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--ac-line-2), transparent);
}

.ac-crumb {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 16px;
    font-size: 12.5px;
    color: var(--ac-muted);
}
.ac-crumb a { color: var(--ac-muted); text-decoration: none; }
.ac-crumb a:hover { color: var(--ac-blue); }
.ac-crumb i { font-style: normal; opacity: .5; }

.ac-top {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 26px;
    align-items: end;
    margin-bottom: 20px;
}
.ac-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 11px;
    padding: 3px 9px;
    border: 1px solid var(--ac-line-2);
    border-radius: 3px;
    background: var(--ac-panel);
    font-family: var(--ac-mono);
    font-size: 9.5px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--ac-blue);
}
.ac-h1 {
    margin: 0 0 12px;
    font-family: var(--ac-sans);
    font-size: clamp(26px, 3.3vw, 38px);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -.032em;
    color: var(--ac-ink);
}
.ac-h1 em {
    font-style: normal;
    color: var(--ac-blue);
    border-bottom: 3px solid var(--ac-green);
    padding-bottom: 1px;
}
.ac-sub {
    margin: 0;
    max-width: 60ch;
    font-size: 14.6px;
    line-height: 1.86;
    color: var(--ac-ink-2);
}
.ac-sub b { color: var(--ac-ink); font-weight: 600; white-space: nowrap; }

.ac-side { display: flex; flex-direction: column; align-items: flex-end; gap: 9px; }
.ac-theme {
    display: inline-flex;
    gap: 2px;
    padding: 3px;
    border: 1px solid var(--ac-line);
    border-radius: 7px;
    background: var(--ac-panel);
}
.ac-theme button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--ac-muted);
    font: inherit;
    font-size: 11.5px;
    padding: 5px 11px;
    border-radius: 5px;
    cursor: pointer;
}
.ac-theme button:hover { color: var(--ac-ink); }
.ac-theme button[aria-pressed="true"] {
    background: var(--ac-blue);
    color: #fff;
    font-weight: 600;
}
.ac-live {
    font-family: var(--ac-mono);
    font-size: 9.5px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--ac-muted);
}

/* ---------------- 工作台 ---------------- */
.ac-desk {
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}
.ac-panel {
    border: 1px solid var(--ac-line);
    border-radius: 10px;
    background: var(--ac-panel);
    box-shadow: var(--ac-shadow);
    overflow: hidden;
}
.ac-ph {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--ac-line);
    background: var(--ac-panel-2);
}
.ac-ph h2 {
    margin: 0;
    font-family: var(--ac-mono);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--ac-ink);
}
.ac-ph span {
    margin-left: auto;
    font-family: var(--ac-mono);
    font-size: 9.5px;
    color: var(--ac-muted);
}

.ac-form { padding: 12px 14px 14px; }
.ac-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
}
.ac-field { display: grid; gap: 4px; min-width: 0; }
.ac-field.is-wide { grid-column: 1 / -1; }
.ac-field > label {
    font-family: var(--ac-mono);
    font-size: 9.5px;
    letter-spacing: .05em;
    text-transform: uppercase;
    color: var(--ac-muted);
}
.ac-inp {
    display: flex;
    align-items: center;
    border: 1px solid var(--ac-line-2);
    border-radius: 6px;
    background: var(--ac-panel);
    transition: border-color .15s, box-shadow .15s;
}
.ac-inp:focus-within {
    border-color: var(--ac-blue);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ac-blue) 13%, transparent);
}
.ac-inp input {
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    border: 0;
    background: transparent;
    color: var(--ac-ink);
    font-family: var(--ac-mono);
    font-size: 14px;
    font-weight: 600;
    padding: 7px 2px 7px 9px;
    outline: none;
    font-variant-numeric: tabular-nums;
}
.ac-inp span {
    flex: 0 0 auto;
    padding-right: 8px;
    font-family: var(--ac-mono);
    font-size: 9.5px;
    color: var(--ac-muted);
    white-space: nowrap;
}
.ac-inp.is-bad { border-color: var(--ac-bad); background: var(--ac-bad-soft); }

.ac-actions {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    padding-top: 11px;
    border-top: 1px solid var(--ac-line);
}
.ac-btn {
    appearance: none;
    font: inherit;
    font-size: 12.5px;
    padding: 7px 12px;
    border-radius: 6px;
    border: 1px solid var(--ac-line-2);
    background: var(--ac-panel);
    color: var(--ac-ink-2);
    cursor: pointer;
    white-space: nowrap;
    transition: all .15s;
}
.ac-btn:hover { border-color: var(--ac-ink); color: var(--ac-ink); }
.ac-btn.is-primary {
    flex: 1 1 auto;
    background: var(--ac-blue);
    border-color: var(--ac-blue);
    color: #fff;
    font-weight: 700;
}
.ac-btn.is-primary:hover { background: var(--ac-blue-2); border-color: var(--ac-blue-2); color: #fff; }
.ac-btn.is-ghost { background: transparent; }

.ac-presets { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 9px; }
.ac-presets button {
    appearance: none;
    border: 1px dashed var(--ac-line-2);
    background: transparent;
    color: var(--ac-ink-2);
    font: inherit;
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 4px;
    cursor: pointer;
}
.ac-presets button:hover { border-color: var(--ac-blue); color: var(--ac-blue); }

.ac-note {
    margin: 9px 0 0;
    padding: 8px 10px;
    border-left: 3px solid var(--ac-warn);
    border-radius: 4px;
    background: var(--ac-warn-soft);
    font-size: 11.5px;
    line-height: 1.7;
    color: var(--ac-ink-2);
}
.ac-note.is-bad { border-left-color: var(--ac-bad); background: var(--ac-bad-soft); }

/* ---------------- 仪表区 ---------------- */
.ac-stage { display: grid; }
.ac-stage-head {
    display: flex;
    align-items: baseline;
    gap: 9px;
    padding: 10px 15px;
    border-bottom: 1px solid var(--ac-line);
    background: var(--ac-panel-2);
}
.ac-stage-head h2 {
    margin: 0;
    font-family: var(--ac-mono);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--ac-ink);
}
.ac-stage-head span {
    margin-left: auto;
    font-family: var(--ac-mono);
    font-size: 10px;
    color: var(--ac-muted);
}

.ac-gauge-row {
    display: grid;
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 16px;
    align-items: center;
    padding: 14px 16px 10px;
}
.ac-gauge { position: relative; padding-bottom: 26px; }
.ac-gauge svg { width: 100%; height: auto; display: block; }
.ac-gauge-arc { fill: none; stroke: var(--ac-gauge-track); stroke-width: 12; stroke-linecap: round; }
.ac-gauge-arc.is-value { stroke: var(--ac-blue); }
.ac-gauge-tick { stroke: var(--ac-line-2); stroke-width: 1.5; }
.ac-gauge-tick.is-major { stroke: var(--ac-muted); stroke-width: 2; }
.ac-gauge-needle { stroke: var(--ac-warn); stroke-width: 3; stroke-linecap: round; transition: transform .5s cubic-bezier(.2, .8, .3, 1); transform-origin: 100px 100px; }
.ac-gauge-hub { fill: var(--ac-ink); }
.ac-gauge-text {
    font-family: var(--ac-mono);
    font-size: 9px;
    fill: var(--ac-muted);
}
.ac-gauge-num {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    text-align: center;
    font-family: var(--ac-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--ac-ink);
    font-variant-numeric: tabular-nums;
}
.ac-gauge-num small { font-size: 10px; font-weight: 500; color: var(--ac-muted); margin-left: 2px; }

.ac-flow { display: grid; gap: 9px; }
.ac-flow-row { display: grid; gap: 4px; }
.ac-flow-label {
    display: flex;
    align-items: baseline;
    gap: 6px;
    font-family: var(--ac-mono);
    font-size: 9.5px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ac-muted);
}
.ac-flow-label b {
    margin-left: auto;
    font-size: 12.5px;
    color: var(--ac-ink);
    font-variant-numeric: tabular-nums;
}
.ac-bar {
    height: 10px;
    border-radius: 5px;
    background: var(--ac-panel-2);
    overflow: hidden;
}
.ac-bar i {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 5px;
    background: var(--ac-blue);
    transition: width .45s cubic-bezier(.22, .8, .3, 1);
}
.ac-bar.is-green i { background: var(--ac-green); }
.ac-bar.is-warn i { background: var(--ac-warn); }

.ac-read {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--ac-line);
    border-top: 1px solid var(--ac-line);
}
.ac-cell { padding: 12px 15px 13px; background: var(--ac-panel); }
.ac-cell span {
    display: block;
    font-family: var(--ac-mono);
    font-size: 9px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ac-muted);
    margin-bottom: 3px;
}
.ac-cell b {
    font-family: var(--ac-mono);
    font-size: clamp(20px, 2.4vw, 26px);
    font-weight: 700;
    color: var(--ac-ink);
    font-variant-numeric: tabular-nums;
    letter-spacing: -.02em;
}
.ac-cell b small { font-size: 10px; font-weight: 500; color: var(--ac-muted); margin-left: 2px; }
.ac-cell.is-accent b { color: var(--ac-blue); }
.ac-cell i {
    display: block;
    margin-top: 2px;
    font-family: var(--ac-mono);
    font-style: normal;
    font-size: 9.5px;
    color: var(--ac-muted);
}

.ac-tip {
    margin: 0;
    padding: 10px 15px 12px;
    border-top: 1px solid var(--ac-line);
    font-size: 11.8px;
    line-height: 1.72;
    color: var(--ac-ink-2);
}
.ac-tip b { color: var(--ac-ink); }
.ac-tip strong { color: var(--ac-blue); font-family: var(--ac-mono); }

/* ---------------- 表格 ---------------- */
.ac-body { padding-bottom: 8px; }
.ac-card {
    margin-top: 16px;
    border: 1px solid var(--ac-line);
    border-radius: 10px;
    background: var(--ac-panel);
    box-shadow: var(--ac-shadow);
    overflow: hidden;
}
.ac-card-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 12px 15px;
    border-bottom: 1px solid var(--ac-line);
    background: var(--ac-panel-2);
}
.ac-card-head h2 {
    margin: 0;
    font-family: var(--ac-mono);
    font-size: 10.5px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--ac-ink);
}
.ac-card-head span { font-size: 12px; color: var(--ac-muted); }
.ac-card-head .ac-btn { margin-left: auto; padding: 5px 10px; font-size: 11.5px; }
.ac-scroll { overflow-x: auto; }
.ac-table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 12.4px; }
.ac-table th,
.ac-table td {
    padding: 7px 11px;
    text-align: right;
    border-bottom: 1px dashed var(--ac-line);
    font-variant-numeric: tabular-nums;
}
.ac-table th:first-child,
.ac-table td:first-child { text-align: left; font-weight: 600; }
.ac-table th {
    font-family: var(--ac-mono);
    font-size: 9.5px;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--ac-muted);
    font-weight: 600;
    background: var(--ac-panel-2);
    white-space: nowrap;
}
.ac-table td { font-family: var(--ac-mono); color: var(--ac-ink-2); }
.ac-table tbody tr:hover td { background: var(--ac-panel-2); }
.ac-table tr.is-cur td {
    color: var(--ac-blue);
    font-weight: 700;
    background: var(--ac-blue-soft);
}

/* ---------------- 说明 ---------------- */
.ac-doc {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 26px 0 6px;
}
.ac-doc-block {
    padding: 17px 19px;
    border: 1px solid var(--ac-line);
    border-radius: 10px;
    background: var(--ac-panel);
}
.ac-doc-block h2 {
    margin: 0 0 9px;
    font-size: 14.8px;
    font-weight: 700;
    color: var(--ac-ink);
}
.ac-doc-block h2::after {
    content: "";
    display: block;
    width: 26px;
    height: 2px;
    margin-top: 6px;
    background: var(--ac-green);
}
.ac-doc-block p,
.ac-doc-block li { font-size: 13px; line-height: 1.95; color: var(--ac-ink-2); }
.ac-doc-block p { margin: 0 0 8px; }
.ac-doc-block p:last-child { margin-bottom: 0; }
.ac-doc-block ul, .ac-doc-block ol { margin: 0; padding-left: 18px; }
.ac-doc-block li + li { margin-top: 4px; }
.ac-doc-block b { color: var(--ac-ink); }
.ac-doc-block code {
    font-family: var(--ac-mono);
    font-size: 11.6px;
    padding: 1px 5px;
    border-radius: 3px;
    background: var(--ac-panel-2);
    color: var(--ac-blue);
}
.ac-formula {
    margin: 10px 0 0;
    padding: 11px 13px;
    border: 1px dashed var(--ac-line-2);
    border-radius: 6px;
    background: var(--ac-panel-2);
    font-family: var(--ac-mono);
    font-size: 11.4px;
    line-height: 2;
    color: var(--ac-ink-2);
    overflow-x: auto;
}

.ac-toast {
    position: fixed;
    left: 50%;
    bottom: 26px;
    transform: translate(-50%, 12px);
    z-index: 90;
    max-width: min(88vw, 440px);
    padding: 10px 18px;
    border-radius: 7px;
    background: var(--ac-ink);
    color: var(--ac-panel);
    font-size: 13px;
    line-height: 1.6;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
}
.ac-toast.is-show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 1040px) {
    .ac-desk { grid-template-columns: minmax(0, 1fr); }
    .ac-top { grid-template-columns: minmax(0, 1fr); gap: 13px; }
    .ac-side { flex-direction: row; align-items: center; justify-content: flex-start; }
    .ac-stage { order: -1; }
    .ac-doc { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
    .ac-wrap { padding: 0 14px; }
    .ac-hero { padding: 15px 0 20px; }
    .ac-h1 { font-size: 24px; }
    .ac-sub { font-size: 13.8px; line-height: 1.8; }
    .ac-live { display: none; }
    .ac-gauge-row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
    .ac-gauge { max-width: 220px; margin: 0 auto; }
    .ac-read { grid-template-columns: minmax(0, 1fr); }
    .ac-actions { flex-wrap: wrap; }
    .ac-btn.is-primary { flex: 1 1 100%; }
    .ac-card-head span { display: none; }
}