/* #37 空气质量指数解读 · 环境监测站仪表风（独立设计系统 aqg-） */
.aqg-page, .aqg-modal, .aqg-toast {
    --aqg-bg: #f1f7fa;
    --aqg-surface: #ffffff;
    --aqg-surface-2: #e7f1f6;
    --aqg-ink: #123a4b;
    --aqg-ink-2: #4f7180;
    --aqg-line: #c9dfe8;
    --aqg-brand: #0b6d8c;
    --aqg-brand-2: #21a8c6;
    --aqg-hot: #e2822b;
    --aqg-track: #dcebf1;
    --aqg-shadow: 0 10px 34px rgba(16, 74, 96, .10);
    --aqg-radius: 18px;
}
:root[data-theme="dark"] .aqg-page,
:root[data-theme="dark"] .aqg-modal,
:root[data-theme="dark"] .aqg-toast {
    --aqg-bg: #0b1922;
    --aqg-surface: #132733;
    --aqg-surface-2: #193442;
    --aqg-ink: #e2f2f7;
    --aqg-ink-2: #9ab7c4;
    --aqg-line: #2a4c5d;
    --aqg-brand: #4cc4e6;
    --aqg-brand-2: #7fd8ef;
    --aqg-hot: #ffb45e;
    --aqg-track: #1e3a48;
    --aqg-shadow: 0 14px 40px rgba(0, 0, 0, .38);
}
.aqg-page [hidden] { display: none !important; }
.aqg-page {
    background: var(--aqg-bg);
    color: var(--aqg-ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.85;
    padding: 26px 0 54px;
    background-image: radial-gradient(circle at 88% 2%, rgba(33, 168, 198, .13), transparent 34%),
        radial-gradient(circle at 4% 42%, rgba(226, 130, 43, .07), transparent 30%);
}
.aqg-wrap { max-width: 1160px; margin: 0 auto; padding: 0 22px; }
.aqg-page b { color: var(--aqg-brand); font-weight: 700; }
:root[data-theme="dark"] .aqg-page b { color: var(--aqg-brand-2); }
.aqg-page h1, .aqg-page h2, .aqg-page h3 { letter-spacing: -.02em; line-height: 1.35; }
.aqg-page h2 { font-size: 23px; margin: 0; font-weight: 800; }
.aqg-page h3 { font-size: 17px; margin: 0 0 10px; font-weight: 750; }
.aqg-page p { margin: 0; }

/* 首屏 */
.aqg-hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; align-items: start; margin-top: 20px; }
.aqg-hero-copy { padding-top: 12px; min-width: 0; }
.aqg-stamp {
    display: inline-flex; align-items: center; gap: 9px; font-size: 12px; font-weight: 700;
    letter-spacing: .08em; color: var(--aqg-brand); background: var(--aqg-surface);
    border: 1px solid var(--aqg-line); border-radius: 999px; padding: 7px 15px;
    box-shadow: var(--aqg-shadow);
}
.aqg-stamp-dot { width: 8px; height: 8px; border-radius: 50%; background: #22b573; box-shadow: 0 0 0 4px rgba(34, 181, 115, .16); }
.aqg-stamp-no { color: var(--aqg-ink-2); font-weight: 500; border-left: 1px solid var(--aqg-line); padding-left: 9px; }
.aqg-hero h1 { font-size: clamp(34px, 4.6vw, 54px); margin: 22px 0 16px; font-weight: 850; }
.aqg-sub { font-size: 17px; line-height: 1.95; color: var(--aqg-ink-2); max-width: 620px; }
.aqg-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 26px; }
.aqg-chips span {
    font-size: 12px; padding: 5px 12px; border-radius: 6px; background: var(--aqg-surface-2);
    color: var(--aqg-ink-2); border: 1px solid var(--aqg-line); font-weight: 600;
}
.aqg-hero-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 560px; }
.aqg-hero-meta > div { border-left: 3px solid var(--aqg-brand-2); padding: 2px 0 2px 12px; }
.aqg-hero-meta b { display: block; font-size: 26px; line-height: 1.2; font-variant-numeric: tabular-nums; color: var(--aqg-brand); }
.aqg-hero-meta span { font-size: 12px; color: var(--aqg-ink-2); }
.aqg-console {
    background: var(--aqg-surface); border: 1px solid var(--aqg-line); border-radius: var(--aqg-radius);
    box-shadow: var(--aqg-shadow); overflow: hidden; min-width: 0;
}
.aqg-console-head {
    display: flex; align-items: center; gap: 9px; padding: 13px 20px; font-size: 13px;
    font-weight: 800; letter-spacing: .06em; color: #fff;
    background: linear-gradient(112deg, var(--aqg-brand), #1391ad);
}
.aqg-led { width: 9px; height: 9px; border-radius: 50%; background: #a9f0c4; box-shadow: 0 0 0 4px rgba(169, 240, 196, .22); }
.aqg-console-head em { margin-left: auto; font-style: normal; font-variant-numeric: tabular-nums; opacity: .85; font-weight: 600; }
.aqg-mode { display: flex; border-bottom: 1px solid var(--aqg-line); background: var(--aqg-surface-2); }
.aqg-mode-btn {
    flex: 1; border: 0; background: transparent; padding: 12px 6px; font-size: 13px; font-weight: 700;
    color: var(--aqg-ink-2); cursor: pointer; border-bottom: 3px solid transparent; font-family: inherit;
}
.aqg-mode-btn.is-on { color: var(--aqg-brand); border-bottom-color: var(--aqg-brand); background: var(--aqg-surface); }
.aqg-pane { padding: 20px; }
.aqg-label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.aqg-label small { font-weight: 500; color: var(--aqg-ink-2); margin-left: 6px; font-size: 11px; }
.aqg-input-line { display: flex; align-items: center; gap: 10px; }
.aqg-page input, .aqg-page textarea {
    font-family: inherit; color: var(--aqg-ink); background: var(--aqg-surface);
    border: 1px solid var(--aqg-line); border-radius: 10px; padding: 11px 13px; font-size: 15px;
    outline: none; width: 100%; box-sizing: border-box;
}
.aqg-page input:focus, .aqg-page textarea:focus { border-color: var(--aqg-brand-2); box-shadow: 0 0 0 3px rgba(33, 168, 198, .15); }
.aqg-input-line input { font-size: 30px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.aqg-unit { font-size: 12px; font-weight: 800; color: var(--aqg-brand); white-space: nowrap; }
.aqg-presets { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.aqg-presets button {
    font-family: inherit; font-size: 12px; padding: 6px 10px; border-radius: 7px; cursor: pointer;
    border: 1px solid var(--aqg-line); background: var(--aqg-surface-2); color: var(--aqg-ink-2); font-weight: 650;
}
.aqg-presets button:hover { border-color: var(--aqg-brand-2); color: var(--aqg-brand); }
.aqg-poll-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
.aqg-poll-grid label { font-size: 12px; font-weight: 750; min-width: 0; }
.aqg-poll-grid small { display: block; font-size: 10px; color: var(--aqg-ink-2); font-weight: 500; margin-bottom: 4px; }
.aqg-poll-grid input { font-size: 15px; padding: 8px 10px; font-variant-numeric: tabular-nums; }
.aqg-pane-note { font-size: 12px; line-height: 1.8; color: var(--aqg-ink-2); margin-top: 12px; }
.aqg-btn-main {
    display: block; width: calc(100% - 40px); margin: 0 20px 18px; padding: 15px 18px; border: 0;
    border-radius: 11px; cursor: pointer; font-family: inherit; font-size: 16px; font-weight: 800; color: #fff;
    background: linear-gradient(105deg, var(--aqg-brand), var(--aqg-brand-2));
    box-shadow: 0 8px 20px rgba(11, 109, 140, .22); transition: transform .15s, box-shadow .15s;
}
.aqg-btn-main:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(11, 109, 140, .30); }
.aqg-btn-main span { float: right; }
.aqg-console-foot { padding: 0 20px 18px; font-size: 11px; color: var(--aqg-ink-2); }
.aqg-err { margin: 0 20px 12px; font-size: 12px; font-weight: 700; color: #c53c2c; background: #fdece8; border-radius: 8px; padding: 9px 12px; }
:root[data-theme="dark"] .aqg-err { background: #43201f; color: #ffb3a7; }

/* 通用区块 */
.aqg-page section.aqg-reading, .aqg-page section.aqg-guide, .aqg-page section.aqg-batch, .aqg-page section.aqg-share { margin-top: 44px; }
.aqg-sec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.aqg-sec-no { font-size: 12px; font-weight: 800; color: var(--aqg-brand); letter-spacing: .12em; border: 1px solid var(--aqg-line); border-radius: 6px; padding: 2px 8px; }
.aqg-sec-head p { font-size: 12px; color: var(--aqg-ink-2); }

/* 读数面板 */
.aqg-reading-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 18px; }
.aqg-dial-card, .aqg-level-card, .aqg-table-card, .aqg-batch-out, .aqg-batch-form {
    background: var(--aqg-surface); border: 1px solid var(--aqg-line); border-radius: var(--aqg-radius);
    box-shadow: var(--aqg-shadow); padding: 22px; min-width: 0;
}
.aqg-dial { width: 100%; max-width: 320px; display: block; margin: 0 auto; }
.aqg-dial-num { font-size: 40px; font-weight: 850; fill: var(--aqg-ink); font-variant-numeric: tabular-nums; }
.aqg-dial-cap { font-size: 12px; font-weight: 700; fill: var(--aqg-ink-2); letter-spacing: .08em; }
.aqg-band-strip { display: flex; margin-top: 14px; border-radius: 8px; overflow: hidden; border: 1px solid var(--aqg-line); }
.aqg-band-strip span { flex: 1; text-align: center; font-size: 10px; font-weight: 800; color: #fff; padding: 6px 0; white-space: nowrap; }
.aqg-level-tag { display: inline-flex; align-items: center; gap: 12px; padding: 8px 18px; border-radius: 10px; color: #fff; font-weight: 800; }
.aqg-level-tag b { color: #fff; font-size: 22px; }
.aqg-level-tag span { font-size: 12px; opacity: .9; }
.aqg-level-lead { margin: 16px 0 18px; font-size: 15px; line-height: 1.9; color: var(--aqg-ink-2); }
.aqg-fact-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.aqg-fact-row > div { background: var(--aqg-surface-2); border-radius: 10px; padding: 10px 12px; min-width: 0; }
.aqg-fact-row span { display: block; font-size: 11px; color: var(--aqg-ink-2); }
.aqg-fact-row b { font-size: 15px; font-weight: 800; word-break: break-all; }
.aqg-advice-title { margin: 20px 0 10px; font-size: 13px; font-weight: 800; letter-spacing: .04em; }
.aqg-advice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.aqg-advice-grid > div { border: 1px solid var(--aqg-line); border-radius: 10px; padding: 11px 12px; min-width: 0; }
.aqg-advice-grid b { display: block; font-size: 12px; margin-bottom: 4px; }
.aqg-advice-grid p { font-size: 12px; line-height: 1.75; color: var(--aqg-ink-2); }
.aqg-table-card { margin-top: 18px; }
.aqg-table-card h3 { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.aqg-table-card h3 small { font-size: 11px; font-weight: 500; color: var(--aqg-ink-2); }
.aqg-table-scroll { width: 100%; overflow-x: auto; }
.aqg-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 560px; }
.aqg-table th, .aqg-table td { padding: 10px 12px; border-bottom: 1px solid var(--aqg-line); text-align: left; }
.aqg-table th { font-size: 11px; color: var(--aqg-ink-2); font-weight: 700; letter-spacing: .05em; background: var(--aqg-surface-2); }
.aqg-table td { font-variant-numeric: tabular-nums; }
.aqg-table tr.is-max td { background: rgba(33, 168, 198, .09); font-weight: 800; }
.aqg-table tr.is-bad td { color: #c53c2c; }
.aqg-bar { height: 7px; border-radius: 4px; background: var(--aqg-track); overflow: hidden; min-width: 70px; }
.aqg-bar i { display: block; height: 100%; border-radius: 4px; background: var(--aqg-brand-2); }

/* 等级速查 + 长文 */
.aqg-levels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.aqg-levels > div { border-radius: 14px; padding: 16px 16px 15px; border: 1px solid var(--aqg-line); background: var(--aqg-surface); min-width: 0; }
.aqg-lv-head { display: flex; align-items: center; gap: 9px; font-weight: 850; font-size: 15px; }
.aqg-lv-dot { width: 14px; height: 14px; border-radius: 4px; flex: none; }
.aqg-lv-range { font-size: 11px; color: var(--aqg-ink-2); font-weight: 700; margin-left: auto; font-variant-numeric: tabular-nums; }
.aqg-levels p { font-size: 12px; line-height: 1.8; color: var(--aqg-ink-2); margin-top: 9px; }
.aqg-prose { margin-top: 22px; background: var(--aqg-surface); border: 1px solid var(--aqg-line); border-radius: var(--aqg-radius); padding: 26px 30px; }
.aqg-prose h3 { margin-top: 22px; font-size: 17px; }
.aqg-prose h3:first-child { margin-top: 0; }
.aqg-prose p { font-size: 14px; line-height: 2.1; color: var(--aqg-ink-2); letter-spacing: .01em; }

/* 批量 */
.aqg-batch-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 18px; }
.aqg-batch-form textarea { resize: vertical; font-size: 13px; line-height: 1.85; font-variant-numeric: tabular-nums; }
.aqg-batch-btns { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 14px; }
.aqg-btn-sub, .aqg-btn-ghost {
    font-family: inherit; font-size: 13px; font-weight: 750; padding: 10px 16px; border-radius: 9px; cursor: pointer;
    border: 1px solid var(--aqg-brand); background: var(--aqg-brand); color: #fff;
}
.aqg-btn-ghost { background: transparent; color: var(--aqg-brand); border-color: var(--aqg-line); }
.aqg-btn-sub:hover { filter: brightness(1.08); }
.aqg-btn-ghost:hover { border-color: var(--aqg-brand); }
.aqg-batch-form .aqg-err { margin: 12px 0 0; }
.aqg-spark { min-height: 120px; margin-bottom: 16px; }
.aqg-spark svg { width: 100%; height: 120px; display: block; }
.aqg-batch-table { min-width: 460px; }
.aqg-batch-sum { margin-top: 14px; font-size: 12px; color: var(--aqg-ink-2); }
.aqg-pill { display: inline-block; font-size: 11px; font-weight: 800; color: #fff; padding: 2px 9px; border-radius: 5px; }

/* 分享条 / 弹窗 */
.aqg-share {
    display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
    border: 1px dashed var(--aqg-brand-2); background: var(--aqg-surface); border-radius: var(--aqg-radius); padding: 22px 26px;
}
.aqg-share h2 { font-size: 19px; }
.aqg-share p { font-size: 12px; color: var(--aqg-ink-2); margin-top: 6px; max-width: 620px; }
.aqg-share-btns { display: flex; gap: 9px; flex-wrap: wrap; }
.aqg-modal { position: fixed; inset: 0; z-index: 9000; background: rgba(8, 32, 42, .62); display: flex; align-items: center; justify-content: center; padding: 18px; }
.aqg-modal[hidden] { display: none !important; }
.aqg-modal-box { position: relative; width: min(460px, 100%); background: var(--aqg-surface); color: var(--aqg-ink); border-radius: 16px; padding: 26px; box-shadow: var(--aqg-shadow); max-height: 88vh; overflow-y: auto; }
.aqg-modal-x { position: absolute; right: 12px; top: 10px; border: 0; background: transparent; font-size: 24px; cursor: pointer; color: var(--aqg-ink-2); line-height: 1; }
.aqg-modal-kicker { font-size: 10px; letter-spacing: .14em; font-weight: 800; color: var(--aqg-brand); }
.aqg-modal-box h3 { font-size: 21px; margin: 8px 0 14px; }
.aqg-modal-result { background: var(--aqg-surface-2); border-radius: 10px; padding: 14px; font-size: 13px; line-height: 1.9; margin-bottom: 16px; }
.aqg-modal-box input { font-size: 12px; }
.aqg-modal-actions { display: flex; gap: 9px; margin-top: 16px; }
.aqg-toast { position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%); z-index: 9500; background: var(--aqg-ink); color: var(--aqg-surface); padding: 11px 20px; border-radius: 9px; font-size: 13px; box-shadow: var(--aqg-shadow); }
.aqg-toast[hidden] { display: none !important; }

@media (max-width: 900px) {
    .aqg-hero, .aqg-reading-grid, .aqg-batch-grid { grid-template-columns: 1fr; }
    .aqg-levels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
    .aqg-wrap { padding: 0 14px; }
    .aqg-page { font-size: 14px; padding-top: 16px; }
    .aqg-hero h1 { font-size: 31px; }
    .aqg-sub { font-size: 15px; }
    .aqg-hero-meta { grid-template-columns: repeat(2, 1fr); row-gap: 14px; }
    .aqg-page section.aqg-reading, .aqg-page section.aqg-guide, .aqg-page section.aqg-batch, .aqg-page section.aqg-share { margin-top: 30px; }
    .aqg-levels, .aqg-advice-grid, .aqg-poll-grid { grid-template-columns: 1fr; }
    .aqg-fact-row { grid-template-columns: 1fr; }
    .aqg-prose { padding: 20px 16px; }
    .aqg-dial-card, .aqg-level-card, .aqg-table-card, .aqg-batch-out, .aqg-batch-form { padding: 16px; }
    .aqg-table { min-width: 460px; }
    .aqg-batch-table { min-width: 420px; }
}