/* =========================================================
   驾考全流程费用与学时计算器 · 专属设计（dvc-*）
   设计语言：驾考仪表台 —— 琥珀警示色 + 信号绿/红，
   驾照卡片 Hero + 仪表盘结果区，公路虚线分隔母题。
   深浅色双主题：跟随 layouts/app 的 html[data-theme]。
   ========================================================= */

.dvc {
    /* ---------- 浅色主题 ---------- */
    --dvc-bg: #f6f4ee;
    --dvc-surface: #ffffff;
    --dvc-surface-2: #fbf9f4;
    --dvc-line: #e5e0d4;
    --dvc-line-strong: #d3ccba;
    --dvc-ink: #23201a;
    --dvc-ink-2: #5c564a;
    --dvc-ink-3: #8d8677;
    --dvc-amber: #d97706;
    --dvc-amber-strong: #b45309;
    --dvc-amber-soft: #fdf3e0;
    --dvc-green: #047857;
    --dvc-green-soft: #e3f3ec;
    --dvc-red: #dc2626;
    --dvc-red-soft: #fdecec;
    --dvc-gauge-bg: #f1ede2;
    --dvc-shadow: 0 1px 2px rgba(60, 50, 20, .05), 0 10px 30px -14px rgba(60, 50, 20, .18);
    --dvc-shadow-lg: 0 2px 4px rgba(60, 50, 20, .06), 0 24px 50px -20px rgba(60, 50, 20, .28);
    --dvc-road: repeating-linear-gradient(90deg, var(--dvc-line-strong) 0 22px, transparent 22px 40px);

    max-width: 1180px;
    margin: 0 auto;
    padding: 18px 16px 60px;
    color: var(--dvc-ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
}
.dvc-shell { max-width: 1120px; margin: 0 auto; }

[data-theme="dark"] .dvc {
    --dvc-bg: #14120d;
    --dvc-surface: #1e1b14;
    --dvc-surface-2: #242017;
    --dvc-line: #37321f;
    --dvc-line-strong: #4a442e;
    --dvc-ink: #f2ede1;
    --dvc-ink-2: #b9b19e;
    --dvc-ink-3: #847d6b;
    --dvc-amber: #f59e0b;
    --dvc-amber-strong: #fbbf24;
    --dvc-amber-soft: #2d2413;
    --dvc-green: #34d399;
    --dvc-green-soft: #11302a;
    --dvc-red: #f87171;
    --dvc-red-soft: #351a1a;
    --dvc-gauge-bg: #161410;
    --dvc-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px -14px rgba(0, 0, 0, .55);
    --dvc-shadow-lg: 0 2px 4px rgba(0, 0, 0, .45), 0 24px 50px -20px rgba(0, 0, 0, .6);
    --dvc-road: repeating-linear-gradient(90deg, var(--dvc-line-strong) 0 22px, transparent 22px 40px);
}

/* ---------- 面包屑 ---------- */
.dvc-crumb { font-size: 13px; color: var(--dvc-ink-3); margin-bottom: 16px; display: flex; gap: 8px; flex-wrap: wrap; }
.dvc-crumb a { color: var(--dvc-ink-2); text-decoration: none; }
.dvc-crumb a:hover { color: var(--dvc-amber-strong); text-decoration: underline; }
.dvc-crumb-sep { color: var(--dvc-line-strong); }

/* ---------- 驾照卡片 Hero ---------- */
.dvc-hero { margin-bottom: 22px; }
.dvc-license {
    position: relative;
    border-radius: 18px;
    padding: 26px 28px 24px;
    background:
        radial-gradient(1200px 220px at 88% -60%, color-mix(in srgb, var(--dvc-amber) 22%, transparent), transparent 70%),
        linear-gradient(135deg, var(--dvc-amber-soft) 0%, var(--dvc-surface) 55%);
    border: 1px solid var(--dvc-line);
    border-top: 3px solid var(--dvc-amber);
    box-shadow: var(--dvc-shadow-lg);
    overflow: hidden;
}
.dvc-license::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 14px;
    height: 2px;
    background: var(--dvc-road);
    opacity: .55;
    pointer-events: none;
}
.dvc-license-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.dvc-license-flag {
    font-size: 12px; letter-spacing: .12em; font-weight: 600;
    color: var(--dvc-amber-strong);
    border: 1px solid color-mix(in srgb, var(--dvc-amber) 45%, transparent);
    border-radius: 999px; padding: 3px 12px;
    background: color-mix(in srgb, var(--dvc-amber) 10%, transparent);
}
.dvc-license-class {
    font-size: 30px; font-weight: 800; line-height: 1;
    color: var(--dvc-amber-strong);
    font-variant-numeric: tabular-nums;
    letter-spacing: .02em;
}
.dvc-license-main h1 {
    margin: 0 0 10px;
    font-size: clamp(25px, 3.6vw, 36px);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: .01em;
}
.dvc-hero-sub { margin: 0; font-size: 14.5px; color: var(--dvc-ink-2); line-height: 1.85; }
.dvc-hero-sub b { color: var(--dvc-ink); }
.dvc-license-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.dvc-chip {
    font-size: 12.5px; font-weight: 600; color: var(--dvc-ink-2);
    background: var(--dvc-surface);
    border: 1px solid var(--dvc-line);
    border-radius: 999px; padding: 4px 12px;
}

/* ---------- 主区布局 ---------- */
.dvc-stage {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 1fr);
    gap: 20px;
    align-items: start;
}
.dvc-console, .dvc-dash { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
@media (min-width: 921px) { .dvc-dash { position: sticky; top: 76px; } }
@media (max-width: 920px) { .dvc-stage { grid-template-columns: 1fr; } }

/* ---------- 卡片 ---------- */
.dvc-card {
    background: var(--dvc-surface);
    border: 1px solid var(--dvc-line);
    border-radius: 14px;
    padding: 18px 20px;
    box-shadow: var(--dvc-shadow);
}
.dvc-card-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.dvc-card-head h2 { margin: 0; font-size: 16.5px; font-weight: 700; letter-spacing: .01em; }
.dvc-card-sub { font-size: 12.5px; font-weight: 400; color: var(--dvc-ink-3); margin-left: 8px; }
.dvc-step-no {
    flex: none;
    width: 24px; height: 24px;
    border-radius: 8px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 800;
    background: var(--dvc-amber);
    color: #fff;
    transform: translateY(3px);
}
[data-theme="dark"] .dvc-step-no { color: #1c1408; }
.dvc-step-no--green { background: var(--dvc-green); color: #fff; }
[data-theme="dark"] .dvc-step-no--green { color: #06251c; }
.dvc-step-no--amber { background: var(--dvc-amber-soft); color: var(--dvc-amber-strong); border: 1px solid color-mix(in srgb, var(--dvc-amber) 40%, transparent); }
[data-theme="dark"] .dvc-step-no--amber { color: var(--dvc-amber-strong); }

/* ---------- 表单 ---------- */
.dvc-field { margin-bottom: 14px; }
.dvc-field:last-child { margin-bottom: 0; }
.dvc-label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; }
.dvc-hint { font-size: 12px; font-weight: 400; color: var(--dvc-ink-3); }
.dvc-select {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    color: var(--dvc-ink);
    background: var(--dvc-surface-2);
    border: 1px solid var(--dvc-line-strong);
    border-radius: 10px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
.dvc-select:focus { border-color: var(--dvc-amber); box-shadow: 0 0 0 3px color-mix(in srgb, var(--dvc-amber) 22%, transparent); }
.dvc-tier-note { margin: 8px 0 0; font-size: 12.5px; color: var(--dvc-ink-3); line-height: 1.7; }

/* 分段切换 */
.dvc-seg { display: flex; gap: 8px; flex-wrap: wrap; }
.dvc-seg-btn {
    flex: 1 1 100px;
    padding: 9px 10px;
    font-size: 14px; font-weight: 700;
    color: var(--dvc-ink-2);
    background: var(--dvc-surface-2);
    border: 1.5px solid var(--dvc-line-strong);
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    transition: all .15s;
    line-height: 1.35;
}
.dvc-seg-btn small { display: block; font-size: 11px; font-weight: 400; color: var(--dvc-ink-3); }
.dvc-seg-btn:hover { border-color: var(--dvc-amber); }
.dvc-seg-btn.active {
    color: var(--dvc-amber-strong);
    border-color: var(--dvc-amber);
    background: var(--dvc-amber-soft);
    box-shadow: inset 0 0 0 1px var(--dvc-amber);
}
.dvc-seg-btn.active small { color: var(--dvc-amber-strong); opacity: .8; }

/* 步进器 */
.dvc-retakes { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.dvc-retake {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    background: var(--dvc-surface-2);
    border: 1px solid var(--dvc-line);
    border-radius: 10px;
    padding: 10px 12px;
}
.dvc-retake-name { font-size: 13.5px; font-weight: 700; line-height: 1.3; }
.dvc-retake-name small { display: block; font-size: 11px; font-weight: 400; color: var(--dvc-ink-3); }
.dvc-stepper { display: inline-flex; align-items: center; gap: 6px; }
.dvc-stepper--sm { transform: scale(.92); transform-origin: right center; }
.dvc-step-btn {
    width: 28px; height: 28px;
    border-radius: 8px;
    border: 1px solid var(--dvc-line-strong);
    background: var(--dvc-surface);
    color: var(--dvc-ink-2);
    font-size: 16px; font-weight: 700; line-height: 1;
    cursor: pointer;
    transition: all .12s;
}
.dvc-step-btn:hover { border-color: var(--dvc-amber); color: var(--dvc-amber-strong); }
.dvc-step-btn:active { transform: scale(.92); }
.dvc-num {
    width: 52px;
    padding: 6px 4px;
    text-align: center;
    font-size: 15px; font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--dvc-ink);
    background: var(--dvc-surface);
    border: 1.5px solid var(--dvc-line-strong);
    border-radius: 8px;
    outline: none;
    -moz-appearance: textfield;
    appearance: textfield;
}
.dvc-num::-webkit-outer-spin-button, .dvc-num::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.dvc-num:focus { border-color: var(--dvc-amber); box-shadow: 0 0 0 3px color-mix(in srgb, var(--dvc-amber) 22%, transparent); }
.dvc-num--wide { width: 92px; font-size: 16px; }
.dvc-num--bad { border-color: var(--dvc-red); box-shadow: 0 0 0 3px color-mix(in srgb, var(--dvc-red) 20%, transparent); }
.dvc-inline { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.dvc-err { margin: 8px 0 0; font-size: 12.5px; color: var(--dvc-red); font-weight: 600; }

/* 开关 */
.dvc-sims { display: flex; flex-direction: column; gap: 10px; }
.dvc-sim {
    display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
    background: var(--dvc-surface-2);
    border: 1px solid var(--dvc-line);
    border-radius: 10px;
    padding: 12px 14px;
}
.dvc-switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; }
.dvc-switch input { position: absolute; opacity: 0; pointer-events: none; }
.dvc-switch-track {
    flex: none;
    width: 40px; height: 22px;
    border-radius: 999px;
    background: var(--dvc-line-strong);
    position: relative;
    transition: background .18s;
}
.dvc-switch-track::after {
    content: "";
    position: absolute; top: 2px; left: 2px;
    width: 18px; height: 18px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.25);
    transition: transform .18s;
}
.dvc-switch input:checked + .dvc-switch-track { background: var(--dvc-green); }
.dvc-switch input:checked + .dvc-switch-track::after { transform: translateX(18px); }
.dvc-switch input:focus-visible + .dvc-switch-track { box-shadow: 0 0 0 3px color-mix(in srgb, var(--dvc-green) 30%, transparent); }
.dvc-sim-name { font-size: 13.5px; font-weight: 700; line-height: 1.3; }
.dvc-sim-name small { display: block; font-size: 11px; font-weight: 400; color: var(--dvc-ink-3); }
.dvc-sim-unit { font-size: 12.5px; color: var(--dvc-ink-3); }
.dvc-sim-unit b { color: var(--dvc-ink-2); }

/* 按钮 */
.dvc-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.dvc-btn {
    padding: 9px 16px;
    font-size: 13.5px; font-weight: 700;
    border-radius: 10px;
    border: 1.5px solid var(--dvc-line-strong);
    background: var(--dvc-surface);
    color: var(--dvc-ink-2);
    cursor: pointer;
    transition: all .15s;
}
.dvc-btn:hover { border-color: var(--dvc-amber); color: var(--dvc-amber-strong); }
.dvc-btn--primary {
    background: linear-gradient(135deg, var(--dvc-amber), var(--dvc-amber-strong));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 14px -4px color-mix(in srgb, var(--dvc-amber) 55%, transparent);
}
[data-theme="dark"] .dvc-btn--primary { color: #1c1408; }
.dvc-btn--primary:hover { color: #fff; filter: brightness(1.06); }
[data-theme="dark"] .dvc-btn--primary:hover { color: #1c1408; }
.dvc-btn:disabled { opacity: .55; cursor: not-allowed; filter: grayscale(.3); }

/* ---------- 仪表盘 ---------- */
.dvc-gauge {
    background: var(--dvc-gauge-bg);
    border: 1px solid var(--dvc-line);
    border-radius: 12px;
    padding: 16px 18px;
    text-align: center;
}
.dvc-gauge-label { font-size: 12.5px; font-weight: 600; color: var(--dvc-ink-3); letter-spacing: .06em; }
.dvc-gauge-num {
    margin-top: 6px;
    display: flex; align-items: baseline; justify-content: center; gap: 8px; flex-wrap: wrap;
    font-variant-numeric: tabular-nums;
}
.dvc-gauge-num span { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--dvc-amber-strong); letter-spacing: .01em; }
.dvc-gauge-num i { font-style: normal; font-size: 20px; font-weight: 700; color: var(--dvc-ink-3); }
.dvc-gauge-num em { font-style: normal; font-size: 14px; font-weight: 700; color: var(--dvc-ink-2); }
.dvc-gauge-bar {
    position: relative;
    height: 8px;
    margin: 14px auto 6px;
    max-width: 320px;
    border-radius: 999px;
    background: linear-gradient(90deg,
        color-mix(in srgb, var(--dvc-green) 55%, transparent) 0%,
        color-mix(in srgb, var(--dvc-amber) 60%, transparent) 55%,
        color-mix(in srgb, var(--dvc-red) 55%, transparent) 100%);
}
.dvc-gauge-mid {
    position: absolute; top: 0; left: 0; height: 100%;
    border-radius: 999px;
    background: color-mix(in srgb, var(--dvc-surface) 65%, transparent);
}
.dvc-gauge-dot {
    position: absolute; top: 50%; left: 50%;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--dvc-surface);
    border: 3px solid var(--dvc-amber-strong);
    transform: translate(-50%, -50%);
}
.dvc-gauge-midtext { font-size: 12.5px; color: var(--dvc-ink-2); }
.dvc-gauge-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 14px; }
@media (max-width: 420px) { .dvc-gauge-metrics { grid-template-columns: 1fr; } }
.dvc-gauge-metric {
    background: var(--dvc-surface-2);
    border: 1px solid var(--dvc-line);
    border-radius: 10px;
    padding: 9px 10px;
    display: flex; flex-direction: column; gap: 2px;
}
.dvc-gauge-metric .k { font-size: 11.5px; color: var(--dvc-ink-3); }
.dvc-gauge-metric .v { font-size: 14.5px; font-weight: 800; font-variant-numeric: tabular-nums; }

/* 明细行 */
.dvc-detail-title { margin: 16px 0 8px; font-size: 13.5px; font-weight: 700; }
.dvc-rows { display: flex; flex-direction: column; gap: 6px; }
.dvc-row {
    border: 1px solid var(--dvc-line);
    border-radius: 10px;
    background: var(--dvc-surface-2);
    overflow: hidden;
}
.dvc-row-head {
    width: 100%;
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    padding: 9px 12px;
    background: none; border: 0;
    cursor: pointer;
    text-align: left;
    font-size: 13.5px;
    color: var(--dvc-ink);
}
.dvc-row-head:hover { background: color-mix(in srgb, var(--dvc-amber) 6%, transparent); }
.dvc-row-name { font-weight: 600; display: flex; align-items: center; gap: 8px; min-width: 0; }
.dvc-row-name .dvc-row-cnt {
    flex: none;
    font-size: 11px; font-weight: 700;
    color: var(--dvc-red);
    background: var(--dvc-red-soft);
    border-radius: 999px;
    padding: 1px 8px;
}
.dvc-row-name .dvc-row-cnt--free { color: var(--dvc-green); background: var(--dvc-green-soft); }
.dvc-row-val { flex: none; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--dvc-ink); }
.dvc-row-body { display: none; padding: 0 12px 10px; font-size: 12.5px; color: var(--dvc-ink-2); line-height: 1.75; }
.dvc-row.open .dvc-row-body { display: block; }
.dvc-row.open { border-color: color-mix(in srgb, var(--dvc-amber) 45%, transparent); }

/* 拿证周期 */
.dvc-period { margin-top: 14px; padding-top: 12px; border-top: 2px dashed var(--dvc-line-strong); }
.dvc-period .dvc-detail-title { margin-top: 0; }
.dvc-period-text { margin: 0; font-size: 13px; color: var(--dvc-ink-2); line-height: 1.8; }
.dvc-period-text b { color: var(--dvc-amber-strong); }

/* AI 区 */
.dvc-ai { margin-top: 16px; border: 1px solid color-mix(in srgb, var(--dvc-amber) 35%, transparent); border-radius: 12px; padding: 12px 14px; background: var(--dvc-amber-soft); }
.dvc-ai-head { font-size: 13.5px; font-weight: 800; margin-bottom: 8px; }
.dvc-ai-body { font-size: 13px; color: var(--dvc-ink-2); line-height: 1.85; white-space: pre-wrap; word-break: break-word; max-height: 320px; overflow: auto; }
.dvc-ai-body.empty { color: var(--dvc-ink-3); font-size: 12.5px; }
.dvc-ai-foot { display: flex; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.dvc-status { font-size: 12.5px; color: var(--dvc-ink-3); }
.dvc-status--bad { color: var(--dvc-red); font-weight: 600; }

/* 学时卡 */
.dvc-hours-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
@media (max-width: 560px) { .dvc-hours-grid { grid-template-columns: repeat(3, 1fr); } }
.dvc-hours-cell {
    background: var(--dvc-surface-2);
    border: 1px solid var(--dvc-line);
    border-radius: 10px;
    padding: 10px 8px;
    text-align: center;
}
.dvc-hours-cell .n { display: block; font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--dvc-amber-strong); line-height: 1.2; }
.dvc-hours-cell .t { display: block; font-size: 11.5px; color: var(--dvc-ink-3); margin-top: 2px; }
.dvc-hours-cell--sum { background: var(--dvc-amber-soft); border-color: color-mix(in srgb, var(--dvc-amber) 45%, transparent); }
.dvc-hours-note { margin: 12px 0 0; font-size: 12.5px; color: var(--dvc-ink-3); line-height: 1.8; }
.dvc-hours-note b { color: var(--dvc-ink-2); }

/* ---------- 批量对比 ---------- */
.dvc-compare-list { display: flex; flex-direction: column; gap: 10px; }
.dvc-compare-row { display: grid; grid-template-columns: 150px 1fr 130px; gap: 12px; align-items: center; }
@media (max-width: 620px) { .dvc-compare-row { grid-template-columns: 1fr; gap: 6px; } }
.dvc-compare-name { font-size: 13.5px; font-weight: 700; }
.dvc-compare-name small { display: block; font-size: 11px; font-weight: 400; color: var(--dvc-ink-3); }
.dvc-compare-bar { position: relative; height: 22px; background: var(--dvc-gauge-bg); border: 1px solid var(--dvc-line); border-radius: 8px; overflow: hidden; }
.dvc-compare-fill {
    position: absolute; top: 0; bottom: 0;
    border-radius: 8px;
    background: linear-gradient(90deg, color-mix(in srgb, var(--dvc-amber) 55%, transparent), color-mix(in srgb, var(--dvc-amber-strong) 65%, transparent));
    min-width: 6px;
}
.dvc-compare-row.cur .dvc-compare-fill { background: linear-gradient(90deg, var(--dvc-green), color-mix(in srgb, var(--dvc-green) 70%, var(--dvc-amber))); }
.dvc-compare-val { font-size: 13.5px; font-weight: 800; font-variant-numeric: tabular-nums; text-align: right; }
.dvc-compare-val small { display: block; font-size: 11px; font-weight: 400; color: var(--dvc-ink-3); }
.dvc-compare-tag {
    display: inline-block; margin-left: 6px;
    font-size: 10.5px; font-weight: 700;
    color: var(--dvc-green); background: var(--dvc-green-soft);
    border-radius: 999px; padding: 1px 7px;
    vertical-align: 1px;
}

/* ---------- 口径表 ---------- */
.dvc-table-wrap { overflow: auto; border: 1px solid var(--dvc-line); border-radius: 12px; }
.dvc-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.dvc-table th, .dvc-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--dvc-line); white-space: nowrap; }
.dvc-table th {
    font-size: 12.5px; font-weight: 700; color: var(--dvc-ink-2);
    background: var(--dvc-amber-soft);
    position: sticky; top: 0; z-index: 1;
}
.dvc-table td { font-variant-numeric: tabular-nums; }
.dvc-table td:first-child { font-weight: 600; }
.dvc-table tr:last-child td { border-bottom: 0; }

/* ---------- 支付节奏时间线 ---------- */
.dvc-timeline { margin: 0; padding: 0 0 0 4px; list-style: none; counter-reset: dvcstep; }
.dvc-timeline li {
    counter-increment: dvcstep;
    position: relative;
    padding: 0 0 18px 34px;
    font-size: 13.5px; color: var(--dvc-ink-2); line-height: 1.85;
}
.dvc-timeline li:last-child { padding-bottom: 0; }
.dvc-timeline li::before {
    content: counter(dvcstep);
    position: absolute; left: 0; top: 2px;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: var(--dvc-amber-soft);
    border: 1.5px solid var(--dvc-amber);
    color: var(--dvc-amber-strong);
    font-size: 12px; font-weight: 800;
    display: flex; align-items: center; justify-content: center;
}
.dvc-timeline li::after {
    content: "";
    position: absolute; left: 11px; top: 26px; bottom: 2px;
    border-left: 2px dashed var(--dvc-line-strong);
}
.dvc-timeline li:last-child::after { display: none; }
.dvc-timeline li b { color: var(--dvc-ink); }

/* ---------- 提示横幅 ---------- */
.dvc-banner {
    display: flex; gap: 12px; align-items: flex-start;
    background: var(--dvc-surface-2);
    border: 1px solid var(--dvc-line);
    border-left: 4px solid var(--dvc-amber);
    border-radius: 12px;
    padding: 14px 16px;
    font-size: 13px; color: var(--dvc-ink-2); line-height: 1.85;
}
.dvc-banner-ic { font-size: 18px; line-height: 1.4; }
.dvc-banner b { color: var(--dvc-ink); }

/* ---------- 标签页 ---------- */
.dvc-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 26px 0 0; border-bottom: 2px solid var(--dvc-line); }
.dvc-tab {
    padding: 9px 16px;
    font-size: 14px; font-weight: 600;
    color: var(--dvc-ink-3);
    background: none; border: 0;
    border-bottom: 2.5px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: color .15s, border-color .15s;
}
.dvc-tab:hover { color: var(--dvc-ink); }
.dvc-tab.active { color: var(--dvc-amber-strong); border-bottom-color: var(--dvc-amber); }
.dvc-panel { display: none; padding: 18px 4px 6px; }
.dvc-panel.active { display: block; }
.dvc-panel h2 { font-size: 16px; font-weight: 700; margin: 14px 0 8px; }
.dvc-panel h2:first-child { margin-top: 0; }
.dvc-panel p { font-size: 14px; color: var(--dvc-ink-2); line-height: 2; margin: 0 0 10px; }
.dvc-panel p b, .dvc-panel p strong { color: var(--dvc-ink); }
.dvc-ol { font-size: 14px; line-height: 2.1; color: var(--dvc-ink-2); padding-left: 22px; margin: 0; }
.dvc-ol b { color: var(--dvc-ink); }
.dvc-timeline-up { list-style: none; padding: 0; margin: 0; }
.dvc-timeline-up li { display: flex; gap: 10px; align-items: baseline; padding: 8px 0; border-bottom: 1px dashed var(--dvc-line); font-size: 13.5px; color: var(--dvc-ink-2); }
.dvc-timeline-up li:last-child { border-bottom: 0; }
.dvc-timeline-up .ver { flex: none; font-size: 12px; font-weight: 800; color: var(--dvc-amber-strong); background: var(--dvc-amber-soft); border-radius: 6px; padding: 1px 8px; }
.dvc-timeline-up .date { flex: none; font-size: 12px; color: var(--dvc-ink-3); font-variant-numeric: tabular-nums; }
.dvc-faq details { border: 1px solid var(--dvc-line); border-radius: 10px; background: var(--dvc-surface-2); margin-bottom: 8px; overflow: hidden; }
.dvc-faq summary { padding: 11px 14px; font-size: 14px; font-weight: 700; cursor: pointer; list-style: none; position: relative; }
.dvc-faq summary::-webkit-details-marker { display: none; }
.dvc-faq summary::after { content: "+"; position: absolute; right: 14px; top: 50%; transform: translateY(-50%); font-size: 16px; color: var(--dvc-ink-3); font-weight: 700; }
.dvc-faq details[open] summary::after { content: "−"; }
.dvc-faq details[open] summary { border-bottom: 1px dashed var(--dvc-line); }
.dvc-faq .a { padding: 10px 14px 12px; font-size: 13.5px; color: var(--dvc-ink-2); line-height: 1.9; }

/* ---------- 相关工具 ---------- */
.dvc-related { margin-top: 26px; }
.dvc-related h2 { font-size: 16px; font-weight: 700; margin: 0 0 12px; }
.dvc-rel-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.dvc-rel {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 14px;
    background: var(--dvc-surface);
    border: 1px solid var(--dvc-line);
    border-radius: 12px;
    text-decoration: none;
    color: var(--dvc-ink);
    transition: all .15s;
}
.dvc-rel:hover { border-color: var(--dvc-amber); box-shadow: var(--dvc-shadow); transform: translateY(-1px); }
.dvc-rel .ri { font-size: 22px; flex: none; }
.dvc-rel b { display: block; font-size: 13.5px; }
.dvc-rel small { display: block; font-size: 11.5px; color: var(--dvc-ink-3); margin-top: 2px; }

/* ---------- 返回顶部 / Toast ---------- */
.dvc-top {
    position: fixed; right: 22px; bottom: 26px;
    width: 42px; height: 42px;
    border-radius: 12px;
    border: 1px solid var(--dvc-line-strong);
    background: var(--dvc-surface);
    color: var(--dvc-ink-2);
    font-size: 18px; font-weight: 700;
    cursor: pointer;
    box-shadow: var(--dvc-shadow);
    opacity: 0; pointer-events: none;
    transition: all .2s;
    z-index: 60;
}
.dvc-top.show { opacity: 1; pointer-events: auto; }
.dvc-top:hover { border-color: var(--dvc-amber); color: var(--dvc-amber-strong); }

.dvc-toast {
    position: fixed; left: 50%; bottom: 34px;
    transform: translateX(-50%) translateY(16px);
    background: var(--dvc-ink);
    color: var(--dvc-bg);
    font-size: 13.5px; font-weight: 600;
    padding: 10px 18px;
    border-radius: 999px;
    box-shadow: var(--dvc-shadow-lg);
    opacity: 0; pointer-events: none;
    transition: all .22s;
    z-index: 80;
    max-width: 86vw;
}
[data-theme="dark"] .dvc-toast { background: var(--dvc-amber-strong); color: #1c1408; }
.dvc-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }