/* ==========================================================================
   美甲美睫纹眉脱毛年度成本计算器 /tool/beauty-care-annual-cost-calc
   视觉主题：梳妆台「美力年度账本」—— 珠光暖白 + 玫瑰胭脂 + 香槟金 + 乌木棕
   圆弧卡片、缎带高光、等宽数字；深浅双主题跟随导航 #themeToggle
   ========================================================================== */

.bec-page {
    /* ---- 浅色：珠光梳妆台 ---- */
    --bec-bg: #fbf6f4;
    --bec-bg-2: #f5ebe8;
    --bec-card: #fffdfd;
    --bec-card-2: #fdf4f2;
    --bec-ink: #35221f;
    --bec-ink-2: #7a5a55;
    --bec-ink-3: #ab8d88;
    --bec-line: #eed9d4;
    --bec-line-2: #f6e7e3;
    --bec-rose: #c2527e;
    --bec-rose-2: #d8749b;
    --bec-rose-deep: #96305a;
    --bec-rose-soft: #fbe4ed;
    --bec-gold: #a8802f;
    --bec-gold-2: #c9a04f;
    --bec-gold-soft: #f8efdb;
    --bec-plum: #7d4467;
    --bec-plum-soft: #f3e4ee;
    --bec-wood: #8a5a3c;
    --bec-wood-soft: #f3e6dc;
    --bec-ok: #4c7c50;
    --bec-shadow: 0 18px 44px rgba(112, 52, 70, .13);
    --bec-shadow-sm: 0 6px 16px rgba(112, 52, 70, .08);
    --bec-mono: "JetBrains Mono", "SFMono-Regular", Consolas, Menlo, monospace;
    --bec-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;

    position: relative;
    margin-top: 22px;
    padding: 30px 30px 34px;
    border-radius: 28px;
    border: 1px solid var(--bec-line);
    background:
        radial-gradient(720px 300px at 6% -8%, rgba(194, 82, 126, .10), transparent 60%),
        radial-gradient(640px 260px at 97% -6%, rgba(168, 128, 47, .10), transparent 58%),
        linear-gradient(180deg, var(--bec-bg-2), var(--bec-bg));
    box-shadow: var(--bec-shadow);
    color: var(--bec-ink);
    font-family: var(--bec-sans);
    font-size: 14.5px;
    line-height: 1.78;
    overflow: hidden;
    font-variant-numeric: tabular-nums;
}
.bec-page::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 18% 30%, rgba(194, 82, 126, .05) 0 2px, transparent 3px),
        radial-gradient(circle at 74% 62%, rgba(168, 128, 47, .06) 0 2px, transparent 3px);
    background-size: 190px 190px, 240px 240px;
    pointer-events: none;
    z-index: 0;
}
.bec-page > * { position: relative; z-index: 1; }
.bec-page * { box-sizing: border-box; }

/* ---- 深色：乌木夜妆台 ---- */
:root[data-theme="dark"] .bec-page {
    --bec-bg: #171013;
    --bec-bg-2: #201619;
    --bec-card: #261a1e;
    --bec-card-2: #2d2025;
    --bec-ink: #f7e9ec;
    --bec-ink-2: #cfadb4;
    --bec-ink-3: #9b7c83;
    --bec-line: #443036;
    --bec-line-2: #37262b;
    --bec-rose: #e88bb0;
    --bec-rose-2: #f2a8c6;
    --bec-rose-deep: #f0b7cd;
    --bec-rose-soft: #3a2029;
    --bec-gold: #d3ab5e;
    --bec-gold-2: #e2c07c;
    --bec-gold-soft: #33281a;
    --bec-plum: #cf9ab8;
    --bec-plum-soft: #332230;
    --bec-wood: #c99a77;
    --bec-wood-soft: #33261c;
    --bec-ok: #7fb183;
    --bec-shadow: 0 18px 44px rgba(0, 0, 0, .4);
    --bec-shadow-sm: 0 6px 16px rgba(0, 0, 0, .3);
}

/* ==================== 首屏 ==================== */
.bec-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 26px;
    align-items: stretch;
}
.bec-kicker {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid var(--bec-line);
    background: var(--bec-card);
    color: var(--bec-rose-deep);
    font-size: 12.5px;
    letter-spacing: .14em;
}
.bec-hero h1 {
    margin: 14px 0 12px;
    font-size: 30px;
    line-height: 1.32;
    font-weight: 700;
    font-style: normal;
    color: var(--bec-ink);
}
.bec-hero h1 em {
    font-style: normal;
    color: var(--bec-rose);
    position: relative;
}
.bec-hero h1 em::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 3px;
    height: 8px;
    background: var(--bec-rose-soft);
    z-index: -1;
    border-radius: 4px;
}
.bec-lead { margin: 0 0 16px; color: var(--bec-ink-2); max-width: 640px; }
.bec-lead b { color: var(--bec-rose-deep); }
.bec-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 20px;
    padding: 0;
}
.bec-tags li {
    padding: 3px 12px;
    border-radius: 999px;
    background: var(--bec-card);
    border: 1px solid var(--bec-line);
    color: var(--bec-ink-2);
    font-size: 12.5px;
}
.bec-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.bec-hero-note { margin: 0; color: var(--bec-ink-3); font-size: 12.5px; }

/* ---- 按钮 ---- */
.bec-btn {
    appearance: none;
    border: 1px solid var(--bec-line);
    background: var(--bec-card);
    color: var(--bec-ink);
    border-radius: 14px;
    padding: 9px 18px;
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.bec-btn:hover { transform: translateY(-1px); box-shadow: var(--bec-shadow-sm); }
.bec-btn--primary { background: linear-gradient(135deg, var(--bec-rose), var(--bec-rose-deep)); border-color: transparent; color: #fff; }
.bec-btn--gold { background: linear-gradient(135deg, var(--bec-gold-2), var(--bec-gold)); border-color: transparent; color: #fff; }
.bec-btn--ghost { background: transparent; }
:root[data-theme="dark"] .bec-btn--primary,
:root[data-theme="dark"] .bec-btn--gold { color: #241418; }

/* ---- 右侧账本封面 ---- */
.bec-cover {
    border-radius: 24px;
    border: 1px solid var(--bec-line);
    background: linear-gradient(160deg, var(--bec-card), var(--bec-card-2));
    box-shadow: var(--bec-shadow-sm);
    padding: 18px 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.bec-cover-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    color: var(--bec-rose-deep);
    font-size: 14px;
}
.bec-cover-head span:last-child {
    font-weight: 400;
    color: var(--bec-ink-3);
    font-size: 12.5px;
}
.bec-cover-svg { width: 100%; height: auto; display: block; }
.bec-cover-kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.bec-cover-kpi {
    border-radius: 14px;
    border: 1px solid var(--bec-line-2);
    background: var(--bec-card);
    padding: 8px 10px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.bec-cover-kpi span { font-size: 11.5px; color: var(--bec-ink-3); white-space: nowrap; }
.bec-cover-kpi b {
    font-family: var(--bec-mono);
    font-size: 15.5px;
    color: var(--bec-rose-deep);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==================== 预设条 ==================== */
.bec-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    padding: 10px 14px;
    border-radius: 16px;
    border: 1px dashed var(--bec-line);
    background: var(--bec-card);
}
.bec-presets-label { font-size: 13px; color: var(--bec-ink-3); margin-right: 4px; }
.bec-presets button {
    appearance: none;
    border: 1px solid var(--bec-line);
    background: var(--bec-card-2);
    color: var(--bec-ink-2);
    border-radius: 999px;
    padding: 5px 14px;
    font-size: 13px;
    cursor: pointer;
    font-family: inherit;
}
.bec-presets button:hover { border-color: var(--bec-rose-2); color: var(--bec-rose-deep); }

/* ==================== 错误条 ==================== */
.bec-errbar {
    margin-top: 14px;
    padding: 10px 16px;
    border-radius: 14px;
    border: 1px solid var(--bec-rose-2);
    background: var(--bec-rose-soft);
    color: var(--bec-rose-deep);
    font-size: 13.5px;
}

/* ==================== 面板 ==================== */
.bec-panel {
    margin-top: 22px;
    padding: 22px 24px;
    border-radius: 22px;
    border: 1px solid var(--bec-line);
    background: var(--bec-card);
    box-shadow: var(--bec-shadow-sm);
}
.bec-panel--result { border-color: var(--bec-rose-2); }
.bec-panel-head { margin-bottom: 14px; }
.bec-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px; height: 30px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--bec-rose), var(--bec-rose-deep));
    color: #fff;
    font-family: var(--bec-mono);
    font-size: 13.5px;
    margin-right: 10px;
    vertical-align: middle;
}
.bec-panel-head h2 {
    display: inline;
    margin: 0;
    font-size: 19px;
    font-style: normal;
    color: var(--bec-ink);
    vertical-align: middle;
}
.bec-panel-head p { margin: 10px 0 0; color: var(--bec-ink-2); font-size: 13.5px; }
.bec-panel-head p b { color: var(--bec-rose-deep); }

/* ==================== 01 磁贴 ==================== */
.bec-tiles { display: flex; flex-wrap: wrap; gap: 10px; }
.bec-tile {
    appearance: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1.5px solid var(--bec-line);
    background: var(--bec-card-2);
    color: var(--bec-ink-2);
    border-radius: 16px;
    padding: 10px 18px;
    font-size: 14.5px;
    cursor: pointer;
    font-family: inherit;
    transition: all .15s ease;
}
.bec-tile i { font-style: normal; font-size: 17px; }
.bec-tile.is-on {
    border-color: var(--bec-rose);
    background: var(--bec-rose-soft);
    color: var(--bec-rose-deep);
    font-weight: 600;
    box-shadow: inset 0 0 0 1px var(--bec-rose-2);
}

/* ==================== 02 参数行 ==================== */
.bec-rows-head,
.bec-row {
    display: grid;
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.7fr) minmax(0, .8fr) minmax(0, .9fr) minmax(0, 1.1fr) 34px;
    gap: 10px;
    align-items: center;
}
.bec-rows-head {
    padding: 0 4px 8px;
    font-size: 12px;
    color: var(--bec-ink-3);
    border-bottom: 1px solid var(--bec-line-2);
}
.bec-rows { display: flex; flex-direction: column; gap: 10px; }
.bec-row {
    padding: 10px 12px;
    border-radius: 16px;
    border: 1px solid var(--bec-line-2);
    background: var(--bec-card-2);
}
.bec-row.is-off { opacity: .45; }
.bec-row-name { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.bec-row-name input[type="text"] {
    width: 100%;
    border: 1px solid var(--bec-line);
    border-radius: 10px;
    padding: 7px 10px;
    font-size: 13.5px;
    background: var(--bec-card);
    color: var(--bec-ink);
    font-family: inherit;
}
.bec-pair { display: flex; gap: 6px; min-width: 0; }
.bec-input {
    width: 100%;
    min-width: 0;
    border: 1px solid var(--bec-line);
    border-radius: 10px;
    padding: 7px 10px;
    font-size: 13.5px;
    background: var(--bec-card);
    color: var(--bec-ink);
    font-family: inherit;
}
.bec-input--num { font-family: var(--bec-mono); text-align: right; }
.bec-input--unit { flex: 0 0 74px; }
.bec-derive {
    font-family: var(--bec-mono);
    font-size: 13.5px;
    color: var(--bec-ink-2);
    text-align: right;
    white-space: nowrap;
}
.bec-derive strong { color: var(--bec-rose-deep); font-weight: 700; }
.bec-del {
    appearance: none;
    border: 1px solid var(--bec-line);
    background: var(--bec-card);
    color: var(--bec-ink-3);
    width: 30px; height: 30px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
}
.bec-del:hover { color: var(--bec-rose-deep); border-color: var(--bec-rose-2); }
.bec-rows-foot { margin-top: 12px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.bec-rows-tip { color: var(--bec-ink-3); font-size: 12.5px; }

/* ==================== 03 结果区 ==================== */
.bec-result-grid {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.5fr);
    gap: 18px;
    align-items: start;
}
.bec-kpis { display: grid; gap: 10px; }
.bec-kpi {
    border-radius: 18px;
    border: 1px solid var(--bec-line);
    padding: 12px 16px;
    background: var(--bec-card-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.bec-kpi span { font-size: 12.5px; color: var(--bec-ink-2); }
.bec-kpi b { font-family: var(--bec-mono); font-size: 24px; line-height: 1.25; }
.bec-kpi small { font-size: 12px; color: var(--bec-ink-3); }
.bec-kpi--rose { border-left: 4px solid var(--bec-rose); }
.bec-kpi--rose b { color: var(--bec-rose-deep); }
.bec-kpi--gold { border-left: 4px solid var(--bec-gold-2); }
.bec-kpi--gold b { color: var(--bec-gold); }
.bec-kpi--plum { border-left: 4px solid var(--bec-plum); }
.bec-kpi--plum b { color: var(--bec-plum); }
.bec-kpi--wood { border-left: 4px solid var(--bec-wood); }
.bec-kpi--wood b { color: var(--bec-wood); font-size: 19px; }

.bec-charts { display: grid; gap: 14px; }
.bec-chart-card {
    border-radius: 18px;
    border: 1px solid var(--bec-line-2);
    background: var(--bec-card-2);
    padding: 14px 16px;
}
.bec-chart-card h3 { margin: 0 0 10px; font-size: 14.5px; color: var(--bec-ink); font-style: normal; }
.bec-donut { width: 150px; height: 150px; display: block; margin: 0 auto; }
.bec-donut-center { font-size: 17px; font-weight: 700; fill: var(--bec-rose-deep); font-family: var(--bec-mono); }
.bec-donut-center2 { font-size: 10px; fill: var(--bec-ink-3); }
.bec-donut path { transition: opacity .15s ease; }
.bec-donut path:hover { opacity: .8; }
.bec-legend {
    list-style: none;
    margin: 10px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 12px;
}
.bec-legend li { font-size: 12.5px; color: var(--bec-ink-2); display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.bec-legend li i { width: 9px; height: 9px; border-radius: 3px; flex: none; }
.bec-legend li b { margin-left: auto; font-family: var(--bec-mono); color: var(--bec-ink); }
.bec-months { width: 100%; height: auto; display: block; }
.bec-months-note { margin: 8px 0 0; font-size: 12.5px; color: var(--bec-ink-3); }

.bec-table-wrap { margin-top: 16px; overflow-x: auto; }
.bec-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 640px; }
.bec-table th, .bec-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--bec-line-2);
    text-align: right;
    white-space: nowrap;
}
.bec-table th:nth-child(2), .bec-table td:nth-child(2),
.bec-table th:nth-child(1), .bec-table td:nth-child(1) { text-align: left; }
.bec-table th { color: var(--bec-ink-3); font-weight: 500; font-size: 12px; }
.bec-table td { font-family: var(--bec-mono); color: var(--bec-ink); }
.bec-table td.bec-td-name { font-family: var(--bec-sans); }
.bec-table tr.is-top td { color: var(--bec-rose-deep); font-weight: 600; }

/* ==================== 04 情景 ==================== */
.bec-scenarios {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}
.bec-scenario {
    border-radius: 18px;
    border: 1px solid var(--bec-line);
    background: var(--bec-card-2);
    padding: 16px 18px;
    text-align: center;
}
.bec-scenario h3 { margin: 0 0 8px; font-size: 14px; color: var(--bec-ink-2); font-weight: 600; font-style: normal; }
.bec-scenario b { display: block; font-family: var(--bec-mono); font-size: 25px; color: var(--bec-ink); }
.bec-scenario p { margin: 6px 0 0; font-size: 12.5px; color: var(--bec-ink-3); }
.bec-scenario.is-now { border-color: var(--bec-rose-2); background: var(--bec-rose-soft); }
.bec-scenario.is-now b { color: var(--bec-rose-deep); }

/* ==================== 05 导入导出 ==================== */
.bec-io { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.bec-label { display: block; font-size: 13px; color: var(--bec-ink-2); margin-bottom: 6px; }
.bec-textarea {
    width: 100%;
    border: 1px solid var(--bec-line);
    border-radius: 14px;
    padding: 10px 12px;
    font-size: 13px;
    font-family: var(--bec-mono);
    background: var(--bec-card-2);
    color: var(--bec-ink);
    resize: vertical;
}
.bec-io-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.bec-io-note { margin: 8px 0 0; font-size: 12.5px; color: var(--bec-ink-3); }
.bec-io-note.is-ok { color: var(--bec-ok); }
.bec-io-note.is-bad { color: var(--bec-rose-deep); }

/* ==================== 介绍 / FAQ / 相关 ==================== */
.bec-sec {
    margin-top: 24px;
    padding: 22px 24px;
    border-radius: 22px;
    border: 1px solid var(--bec-line);
    background: var(--bec-card);
}
.bec-sec h2 { margin: 0 0 12px; font-size: 19px; font-style: normal; color: var(--bec-ink); }
.bec-sec h3 { margin: 16px 0 8px; font-size: 15.5px; font-style: normal; color: var(--bec-rose-deep); }
.bec-sec p { margin: 0 0 10px; color: var(--bec-ink-2); }
.bec-sec p b { color: var(--bec-rose-deep); }
.bec-faq details {
    border: 1px solid var(--bec-line-2);
    border-radius: 14px;
    background: var(--bec-card-2);
    padding: 10px 16px;
    margin-bottom: 8px;
}
.bec-faq summary { cursor: pointer; font-weight: 600; color: var(--bec-ink); }
.bec-faq details[open] summary { color: var(--bec-rose-deep); }
.bec-faq p { margin: 8px 0 2px; }
.bec-rel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.bec-rel a {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 12px 16px;
    border-radius: 14px;
    border: 1px solid var(--bec-line-2);
    background: var(--bec-card-2);
    text-decoration: none;
    transition: border-color .15s ease, transform .15s ease;
}
.bec-rel a:hover { border-color: var(--bec-rose-2); transform: translateY(-1px); }
.bec-rel a b { color: var(--bec-ink); font-size: 14px; }
.bec-rel a span { color: var(--bec-ink-3); font-size: 12.5px; }
.bec-foot { margin-top: 18px; text-align: center; color: var(--bec-ink-3); font-size: 12.5px; }

/* ==================== SVG 通用 ==================== */
#becSpark rect { fill: var(--bec-rose-2); rx: 2; }
#becSpark rect.is-max { fill: var(--bec-rose); }
#becSpark text { font-size: 8px; fill: var(--bec-ink-3); }
#becDonut text { pointer-events: none; }
#becMonths .bec-mbar { fill: var(--bec-rose-2); }
#becMonths .bec-mbar.is-max { fill: var(--bec-rose); }
#becMonths .bec-mbase { stroke: var(--bec-line); }
#becMonths text { font-size: 9.5px; fill: var(--bec-ink-3); }
#becMonths .bec-mval { font-size: 8.5px; fill: var(--bec-ink-2); font-family: var(--bec-mono); }

/* ==================== 响应式 ==================== */
.bec-main, .bec-page section { min-width: 0; }
@media (max-width: 1024px) {
    .bec-hero { grid-template-columns: 1fr; }
    .bec-result-grid { grid-template-columns: 1fr; }
    .bec-rows-head { display: none; }
    .bec-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .bec-row .bec-derive { text-align: left; }
}
@media (max-width: 640px) {
    .bec-page { padding: 20px 16px 24px; border-radius: 20px; }
    .bec-hero h1 { font-size: 23px; }
    .bec-panel { padding: 16px 14px; }
    .bec-row { grid-template-columns: 1fr; }
    .bec-scenarios { grid-template-columns: 1fr; }
    .bec-cover-kpis { grid-template-columns: 1fr 1fr; }
    .bec-rel { grid-template-columns: 1fr; }
    .bec-kpi b { font-size: 20px; }
}

/* ==================== 打印 ==================== */
@media print {
    body * { visibility: hidden; }
    .bec-printzone, .bec-printzone * { visibility: visible; }
    .bec-printzone {
        position: absolute;
        inset: 0 auto auto 0;
        width: 100%;
        padding: 24px 28px;
        background: #fff;
        color: #241418;
        font-family: "Microsoft YaHei", sans-serif;
    }
    .bec-pz-title { font-size: 20px; font-weight: 700; margin: 0 0 4px; }
    .bec-pz-sub { font-size: 12px; color: #666; margin: 0 0 14px; }
    .bec-pz-kpis { display: flex; gap: 12px; margin-bottom: 14px; }
    .bec-pz-kpi { flex: 1; border: 1px solid #ddd; border-radius: 10px; padding: 8px 12px; }
    .bec-pz-kpi span { display: block; font-size: 11px; color: #888; }
    .bec-pz-kpi b { font-size: 17px; color: #96305a; }
    .bec-pz-table { width: 100%; border-collapse: collapse; font-size: 12px; }
    .bec-pz-table th, .bec-pz-table td { border: 1px solid #ddd; padding: 6px 8px; text-align: right; }
    .bec-pz-table th:first-child, .bec-pz-table td:first-child { text-align: left; }
    .bec-pz-table th { background: #faf3f5; }
    .bec-pz-note { font-size: 11px; color: #888; margin-top: 12px; }
}