/* ============================================================
   #22 网络抖动测试 · 示波器 / 深藏青波形
   前缀 jit- · 冰蓝纸底 + 藏青 + 信号绿，浅色默认深色整套覆盖
   ============================================================ */
.jit-page, .jit-toast {
    --jit-bg: #eef4fb;
    --jit-bg2: #e2ecf8;
    --jit-panel: #ffffff;
    --jit-panel2: #f6faff;
    --jit-ink: #102b4e;
    --jit-sub: #5a7595;
    --jit-line: #d3e2f1;
    --jit-line2: #b9d0e8;
    --jit-brand: #0d4f9c;
    --jit-brand-deep: #08386f;
    --jit-brand-soft: #e2eefc;
    --jit-signal: #009e88;
    --jit-signal-soft: #ddf5ef;
    --jit-warn: #c56a0b;
    --jit-warn-soft: #fdf0de;
    --jit-scope: #0d2a4a;
    --jit-shadow: 0 14px 34px rgba(13, 55, 100, .11);
    --jit-shadow-sm: 0 3px 12px rgba(13, 55, 100, .07);
    --jit-mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
:root[data-theme="dark"] .jit-page, :root[data-theme="dark"] .jit-toast {
    --jit-bg: #091525;
    --jit-bg2: #0e1e33;
    --jit-panel: #102036;
    --jit-panel2: #152a44;
    --jit-ink: #e4eefc;
    --jit-sub: #8ca9c9;
    --jit-line: #203b5b;
    --jit-line2: #2f5279;
    --jit-brand: #6eaeff;
    --jit-brand-deep: #9ac7ff;
    --jit-brand-soft: #152e4f;
    --jit-signal: #3ad8bd;
    --jit-signal-soft: #103a37;
    --jit-warn: #ffb56b;
    --jit-warn-soft: #3a2a19;
    --jit-scope: #071321;
    --jit-shadow: 0 14px 34px rgba(0, 0, 0, .36);
    --jit-shadow-sm: 0 3px 12px rgba(0, 0, 0, .28);
}
.jit-page {
    background: var(--jit-bg); color: var(--jit-ink); padding: 0 0 56px; min-height: 60vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px; line-height: 1.75;
}
.jit-wrap { max-width: 1140px; margin: 0 auto; padding: 18px 16px 0; }
.jit-page .detail-breadcrumb { font-size: 13px; color: var(--jit-sub); margin: 10px 0 18px; }
.jit-page .detail-breadcrumb a { color: var(--jit-sub); text-decoration: none; }
.jit-page .detail-breadcrumb a:hover { color: var(--jit-brand); }
.jit-page .detail-breadcrumb .current { color: var(--jit-brand); font-weight: 700; }
.jit-page .detail-breadcrumb .sep { margin: 0 8px; opacity: .6; }

/* ---------- 首屏 ---------- */
.jit-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 26px; align-items: stretch; margin-bottom: 24px; }
.jit-hero > * { min-width: 0; }
.jit-kicker {
    display: inline-block; font: 700 11px var(--jit-mono); letter-spacing: 1.4px;
    color: var(--jit-brand); background: var(--jit-brand-soft);
    border: 1px solid var(--jit-line2); border-radius: 4px; padding: 6px 12px; margin-bottom: 14px;
}
.jit-page h1 { font-size: 35px; line-height: 1.22; font-weight: 800; margin: 0 0 14px; }
.jit-sub { font-size: 15px; line-height: 1.95; color: var(--jit-sub); margin: 0 0 18px; max-width: 620px; }
.jit-sub b { color: var(--jit-ink); }
.jit-hero-form { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 9px; margin-bottom: 14px; }
.jit-hero-form label { font-size: 11.5px; color: var(--jit-sub); display: block; }
.jit-hero-form select, .jit-select {
    display: block; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--jit-line2);
    border-radius: 7px; background: var(--jit-panel); color: var(--jit-ink); font: 13px var(--jit-mono);
}
.jit-btn {
    border: 1px solid var(--jit-line2); background: var(--jit-panel); color: var(--jit-ink);
    border-radius: 7px; padding: 10px 16px; font-size: 14px; font-weight: 650; cursor: pointer;
    transition: transform .12s, box-shadow .12s, background .12s; font-family: inherit;
}
.jit-btn:hover { transform: translateY(-1px); box-shadow: var(--jit-shadow-sm); }
.jit-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.jit-btn-main { background: var(--jit-brand); border-color: var(--jit-brand-deep); color: #fff; }
.jit-btn-main:hover { background: var(--jit-brand-deep); }
.jit-btn-ghost { background: transparent; }
.jit-hero-note { font-size: 12.5px; line-height: 1.9; color: var(--jit-sub); margin: 0; border-left: 3px solid var(--jit-signal); padding-left: 11px; }
.jit-hero-note b { color: var(--jit-ink); }

/* ---------- 示波器 ---------- */
.jit-scope {
    background: var(--jit-scope); border: 1px solid var(--jit-line2); border-radius: 12px;
    box-shadow: var(--jit-shadow); padding: 13px 14px; display: flex; flex-direction: column; gap: 8px;
}
.jit-scope-head { display: flex; justify-content: space-between; align-items: center; font: 700 11px var(--jit-mono); letter-spacing: 1.4px; color: #82a4c8; }
.jit-scope-head b { color: #6be3c8; background: rgba(0, 158, 136, .16); border-radius: 20px; padding: 3px 11px; letter-spacing: 0; }
#jitScopeSvg { width: 100%; height: 170px; display: block; background: repeating-linear-gradient(0deg, transparent 0 33px, rgba(110, 160, 210, .08) 33px 34px); border-radius: 6px; }
.jit-grid line { stroke: rgba(135, 180, 225, .16); stroke-width: 1; }
.jit-wave { fill: none; stroke: #57e0bd; stroke-width: 2.2; stroke-linejoin: round; stroke-linecap: round; }
.jit-fill { fill: rgba(87, 224, 189, .13); stroke: none; }
.jit-scope-foot { display: flex; justify-content: space-between; gap: 8px; font: 11px var(--jit-mono); color: #82a4c8; flex-wrap: wrap; }

/* ---------- 区块 ---------- */
.jit-section {
    background: var(--jit-panel); border: 1px solid var(--jit-line); border-radius: 12px;
    box-shadow: var(--jit-shadow-sm); padding: 20px; margin-bottom: 20px;
}
.jit-sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.jit-page h2 { font-size: 19px; margin: 0; font-weight: 800; }
.jit-page h2::before { content: '∿'; color: var(--jit-signal); font-size: 21px; margin-right: 8px; }
.jit-sec-sub { font: 11.5px var(--jit-mono); color: var(--jit-sub); }
.jit-progress { height: 7px; border-radius: 4px; background: var(--jit-bg2); overflow: hidden; margin-bottom: 15px; }
.jit-progress i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--jit-brand), var(--jit-signal)); transition: width .15s; }
.jit-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.jit-kpi { border: 1px solid var(--jit-line); border-bottom: 3px solid var(--jit-brand); border-radius: 8px; background: var(--jit-panel2); padding: 10px 13px; min-width: 0; }
.jit-kpi.is-good { border-bottom-color: var(--jit-signal); }
.jit-kpi.is-warn { border-bottom-color: var(--jit-warn); }
.jit-kpi span { display: block; font-size: 11.5px; color: var(--jit-sub); }
.jit-kpi b { display: block; font: 800 21px/1.4 var(--jit-mono); color: var(--jit-brand); }
.jit-kpi.is-good b { color: var(--jit-signal); }
.jit-kpi.is-warn b { color: var(--jit-warn); }
.jit-verdict { margin-top: 14px; border: 1px solid var(--jit-line2); border-left: 5px solid var(--jit-signal); border-radius: 0 9px 9px 0; background: var(--jit-signal-soft); padding: 12px 16px; }
.jit-verdict[hidden] { display: none !important; }
.jit-verdict.is-warn { border-left-color: var(--jit-warn); background: var(--jit-warn-soft); }
.jit-verdict b { display: block; margin-bottom: 4px; }
.jit-verdict p { margin: 0; font-size: 12.5px; line-height: 1.9; color: var(--jit-sub); }

/* ---------- 分布与场景 ---------- */
.jit-histo { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 8px; align-items: end; height: 130px; padding: 10px 4px 0; border-bottom: 1px solid var(--jit-line2); }
.jit-hbar { display: flex; flex-direction: column; justify-content: flex-end; align-items: center; height: 100%; min-width: 0; }
.jit-hbar i { display: block; width: 100%; max-width: 42px; min-height: 3px; border-radius: 4px 4px 0 0; background: linear-gradient(180deg, var(--jit-signal), var(--jit-brand)); }
.jit-hbar span { font: 10px var(--jit-mono); color: var(--jit-sub); white-space: nowrap; margin-top: 4px; }
.jit-hbar b { font: 700 11px var(--jit-mono); color: var(--jit-brand); }
.jit-scenes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.jit-scene { border: 1px solid var(--jit-line); border-radius: 9px; background: var(--jit-panel2); padding: 11px 13px; min-width: 0; }
.jit-scene h3 { font-size: 13px; margin: 0 0 6px; }
.jit-scene p { font-size: 12px; color: var(--jit-sub); margin: 0; line-height: 1.8; }
.jit-scene b { color: var(--jit-ink); }
.jit-hint { font-size: 12.5px; line-height: 1.9; color: var(--jit-sub); margin: 15px 0 0; }
.jit-hint b { color: var(--jit-ink); }
.jit-round-acts { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-bottom: 12px; }
.jit-round-tip { font-size: 11.5px; color: var(--jit-sub); }
.jit-table-scroll { overflow-x: auto; }
.jit-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.jit-table th, .jit-table td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--jit-line); }
.jit-table th { background: var(--jit-bg2); color: var(--jit-sub); font-size: 11.5px; white-space: nowrap; }
.jit-table td { font-family: var(--jit-mono); }
.jit-table .jit-empty { text-align: center; color: var(--jit-sub); padding: 22px; font-family: inherit; }
.jit-pill { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; background: var(--jit-signal-soft); color: var(--jit-signal); }
.jit-pill.warn { background: var(--jit-warn-soft); color: var(--jit-warn); }

/* ---------- AI ---------- */
.jit-ai-lead { font-size: 13px; line-height: 1.9; color: var(--jit-sub); margin: 0 0 12px; }
.jit-ai-lead b { color: var(--jit-ink); }
.jit-btn-ai { background: var(--jit-signal); border-color: var(--jit-signal); color: #042b25; }
.jit-btn-ai:hover { filter: brightness(1.08); }
.jit-ai-tip { font-size: 11.5px; color: var(--jit-sub); margin-left: 10px; }
.jit-ai-box { margin-top: 14px; border: 1px solid var(--jit-line2); border-left: 4px solid var(--jit-signal); border-radius: 0 8px 8px 0; background: var(--jit-panel2); padding: 13px 15px; font-size: 13px; line-height: 1.9; }
.jit-ai-box[hidden] { display: none !important; }
.jit-ai-box > b { display: block; color: var(--jit-signal); margin-bottom: 6px; }
.jit-ai-box p { margin: 0 0 6px; white-space: pre-wrap; }
.jit-toast {
    position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 14px);
    background: var(--jit-ink); color: var(--jit-panel); border-radius: 8px; padding: 10px 18px;
    font-size: 13px; box-shadow: var(--jit-shadow); opacity: 0; pointer-events: none;
    transition: opacity .2s, transform .2s; z-index: 999;
}
.jit-toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 980px) {
    .jit-hero { grid-template-columns: 1fr; }
    .jit-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .jit-scenes { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
    .jit-wrap { padding: 12px 12px 0; }
    .jit-page h1 { font-size: 28px; }
    .jit-sub { font-size: 14px; line-height: 1.85; }
    .jit-section { padding: 15px 13px; }
    .jit-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .jit-histo { gap: 4px; }
    .jit-hbar span { font-size: 8.5px; }
    .jit-hero-form > .jit-btn { flex: 1; }
    .jit-table th, .jit-table td { padding: 8px 7px; font-size: 11.5px; }
    .jit-ai-tip { display: block; margin: 8px 0 0; }
}

/* 深色主按钮：亮蓝底配深墨字 */
:root[data-theme="dark"] .jit-btn-main { color: #07162b; }
:root[data-theme="dark"] .jit-btn-main:hover { color: #07162b; }