/* ==========================================================================
   大学生生活费预算分配器 /tool/student-budget-calc
   视觉主题：钱包松石绿 + 蜜桃橙 —— 环形分配图 + 票据式账本
   深浅双主题；深色模式跟随导航栏 #themeToggle，页面内不另设切换开关
   ========================================================================== */

.sbc-page {
    /* ---- 浅色（默认） ---- */
    --sbc-bg: #eef7f5;
    --sbc-bg-2: #e0f0ed;
    --sbc-card: #ffffff;
    --sbc-card-2: #f4faf9;
    --sbc-ink: #0f302e;
    --sbc-ink-2: #3c615e;
    --sbc-ink-3: #7b9b98;
    --sbc-line: #cee5e1;
    --sbc-line-2: #e3f0ee;
    --sbc-teal: #0d7a72;
    --sbc-teal-2: #12a096;
    --sbc-teal-soft: #d6f0ec;
    --sbc-peach: #cf6329;
    --sbc-peach-2: #f0854a;
    --sbc-peach-soft: #fdeae0;
    --sbc-green: #1c7a54;
    --sbc-green-soft: #e0f4ec;
    --sbc-red: #bf3b2e;
    --sbc-red-soft: #fdeae7;
    --sbc-shadow: 0 18px 40px rgba(13, 60, 56, .12);
    --sbc-shadow-sm: 0 6px 18px rgba(13, 60, 56, .08);
    --sbc-radius: 20px;
    --sbc-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="dark"] .sbc-page {
    /* ---- 深色 ---- */
    --sbc-bg: #061513;
    --sbc-bg-2: #0a1d1b;
    --sbc-card: #0e2422;
    --sbc-card-2: #14302d;
    --sbc-ink: #e4f5f2;
    --sbc-ink-2: #a5c7c2;
    --sbc-ink-3: #6d928d;
    --sbc-line: #1e3f3b;
    --sbc-line-2: #173330;
    --sbc-teal: #4ed3c1;
    --sbc-teal-2: #7ae6d6;
    --sbc-teal-soft: #0e2f2c;
    --sbc-peach: #ffa06a;
    --sbc-peach-2: #ffbe93;
    --sbc-peach-soft: #33200f;
    --sbc-green: #5ec494;
    --sbc-green-soft: #12301f;
    --sbc-red: #ef8d80;
    --sbc-red-soft: #341c19;
    --sbc-shadow: 0 18px 46px rgba(0, 0, 0, .55);
    --sbc-shadow-sm: 0 6px 18px rgba(0, 0, 0, .42);
}

.sbc-page {
    color: var(--sbc-ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.78;
    font-variant-numeric: tabular-nums;
    padding: 28px 28px 32px;
    margin-top: 22px;
    background:
        radial-gradient(rgba(13, 122, 114, .07) 1px, transparent 1.7px),
        linear-gradient(180deg, var(--sbc-bg-2), var(--sbc-bg));
    background-size: 16px 16px, auto;
    border: 1px solid var(--sbc-line);
    border-radius: var(--sbc-radius);
    box-shadow: var(--sbc-shadow);
}

.sbc-page * { box-sizing: border-box; }

.sbc-page h1,
.sbc-page h2,
.sbc-page h3 { margin: 0; line-height: 1.38; letter-spacing: .3px; }
.sbc-page h1 { font-size: 32px; font-weight: 800; color: var(--sbc-teal); }
.sbc-page h2 { font-size: 20px; font-weight: 800; color: var(--sbc-ink); }
.sbc-page h3 { font-size: 15px; font-weight: 700; color: var(--sbc-ink); }

/* ===================== 首屏 ===================== */
.sbc-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 424px;
    gap: 28px;
    align-items: start;
    margin-bottom: 20px;
}

.sbc-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--sbc-peach);
    background: var(--sbc-peach-soft);
    border: 1px solid var(--sbc-line);
    border-radius: 999px;
    padding: 3px 13px;
    margin-bottom: 12px;
}

.sbc-lead {
    margin: 10px 0 15px;
    font-size: 15.5px;
    color: var(--sbc-ink-2);
    max-width: 56ch;
    line-height: 1.9;
}
.sbc-lead b { color: var(--sbc-teal); font-weight: 700; }

.sbc-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 7px; }
.sbc-tags li {
    font-size: 12.5px;
    color: var(--sbc-ink-2);
    background: var(--sbc-card);
    border: 1px solid var(--sbc-line);
    border-radius: 999px;
    padding: 4px 12px;
}
.sbc-tags li::before { content: "· "; color: var(--sbc-peach-2); font-weight: 700; }

/* 三步用法 */
.sbc-steps {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.sbc-steps li {
    background: var(--sbc-card);
    border: 1px solid var(--sbc-line);
    border-radius: 12px;
    padding: 12px 14px;
}
.sbc-steps b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: var(--sbc-teal);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    margin-bottom: 6px;
}
.sbc-steps span { display: block; font-size: 13.5px; font-weight: 700; color: var(--sbc-ink); }
.sbc-steps i { display: block; font-style: normal; font-size: 11.5px; color: var(--sbc-ink-3); line-height: 1.6; margin-top: 2px; }

/* ===================== 速览卡 ===================== */
.sbc-meter {
    background: var(--sbc-card);
    border: 1px solid var(--sbc-line);
    border-radius: 18px;
    padding: 18px 20px 16px;
    box-shadow: var(--sbc-shadow-sm);
    position: relative;
    overflow: hidden;
}
.sbc-meter::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--sbc-teal), var(--sbc-peach-2));
}

.sbc-meter-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--sbc-line);
}
.sbc-meter-head b { font-size: 15px; color: var(--sbc-teal); }
.sbc-meter-head span { font-size: 12px; color: var(--sbc-ink-3); }

.sbc-total-field { margin: 12px 0 4px; }
.sbc-total-label { font-size: 12px; color: var(--sbc-ink-3); }
.sbc-total-row { display: flex; align-items: baseline; gap: 8px; }
.sbc-total-input {
    font-family: var(--sbc-mono);
    font-size: 30px;
    font-weight: 800;
    color: var(--sbc-teal);
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--sbc-line);
    padding: 2px 0;
    width: 160px;
    outline: none;
    letter-spacing: -0.5px;
}
.sbc-total-input:focus { border-bottom-color: var(--sbc-teal); }
.sbc-total-row em { font-style: normal; font-size: 13px; color: var(--sbc-ink-3); }

/* 环形分配图 */
.sbc-donut-wrap { display: flex; align-items: center; gap: 16px; margin: 14px 0 6px; }
.sbc-donut { position: relative; width: 132px; height: 132px; flex: none; }
.sbc-donut svg { transform: rotate(-90deg); display: block; }
.sbc-donut circle { fill: none; stroke-linecap: butt; }
.sbc-donut-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.sbc-donut-center b { font-family: var(--sbc-mono); font-size: 19px; font-weight: 800; color: var(--sbc-ink); line-height: 1.2; }
.sbc-donut-center span { font-size: 10.5px; color: var(--sbc-ink-3); }

.sbc-legend { list-style: none; margin: 0; padding: 0; flex: 1; min-width: 0; }
.sbc-legend li {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 12.5px;
    color: var(--sbc-ink-2);
    padding: 2px 0;
}
.sbc-legend i { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.sbc-legend b { margin-left: auto; font-family: var(--sbc-mono); color: var(--sbc-ink); font-weight: 700; }
.sbc-legend em { font-style: normal; color: var(--sbc-ink-3); font-family: var(--sbc-mono); font-size: 11.5px; width: 42px; text-align: right; }

/* 分配明细行（可编辑） */
.sbc-items { margin-top: 12px; border-top: 1px dashed var(--sbc-line); padding-top: 10px; }
.sbc-item {
    display: grid;
    grid-template-columns: 14px 1fr 92px 58px;
    align-items: center;
    gap: 8px;
    margin-bottom: 7px;
}
.sbc-item > i { width: 12px; height: 12px; border-radius: 4px; display: inline-block; }
.sbc-item-name { font-size: 13px; color: var(--sbc-ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sbc-item .sbc-input { padding: 5px 8px; font-size: 13px; text-align: right; }
.sbc-item .sbc-input.is-pct { font-family: var(--sbc-mono); }
.sbc-item .sbc-item-pct { font-family: var(--sbc-mono); font-size: 12px; color: var(--sbc-ink-3); text-align: right; }

.sbc-sum {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px dotted var(--sbc-line);
    padding-top: 8px;
    font-size: 12.5px;
    color: var(--sbc-ink-3);
}
.sbc-sum b { font-family: var(--sbc-mono); color: var(--sbc-ink); }
.sbc-sum .is-over { color: var(--sbc-red); }
.sbc-sum .is-tight { color: var(--sbc-peach); }
.sbc-sum .is-ok { color: var(--sbc-green); }

.sbc-meter-actions { display: flex; gap: 8px; margin-top: 12px; }
.sbc-meter-actions .sbc-btn { flex: 1; padding: 8px 10px; font-size: 13px; text-align: center; }

/* ===================== 预置示例 ===================== */
.sbc-presets {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.sbc-presets-label { font-size: 12px; font-weight: 700; letter-spacing: 1px; color: var(--sbc-ink-3); }
.sbc-presets button {
    font: inherit;
    font-size: 13px;
    color: var(--sbc-teal);
    background: var(--sbc-card);
    border: 1px solid var(--sbc-line);
    border-radius: 999px;
    padding: 5px 14px;
    cursor: pointer;
    transition: all .15s ease;
}
.sbc-presets button:hover { border-color: var(--sbc-teal); background: var(--sbc-teal-soft); }

/* ===================== 校验条 ===================== */
.sbc-errbar {
    border-radius: 12px;
    border: 1px solid var(--sbc-red);
    background: var(--sbc-red-soft);
    color: var(--sbc-red);
    font-size: 13px;
    line-height: 1.75;
    padding: 10px 14px;
    margin-bottom: 16px;
}
.sbc-errbar.is-warn { border-color: var(--sbc-peach-2); background: var(--sbc-peach-soft); color: var(--sbc-peach); }
.sbc-errbar.is-ok { border-color: var(--sbc-green); background: var(--sbc-green-soft); color: var(--sbc-green); }
.sbc-errbar ul { margin: 0; padding-left: 18px; }
.sbc-errbar b { font-weight: 800; }

/* ===================== 面板 ===================== */
.sbc-panel {
    background: var(--sbc-card);
    border: 1px solid var(--sbc-line);
    border-radius: 16px;
    padding: 22px 24px;
    margin-bottom: 18px;
    box-shadow: var(--sbc-shadow-sm);
}
.sbc-panel-head { margin-bottom: 16px; }
.sbc-pk {
    display: inline-block;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--sbc-peach);
    background: var(--sbc-peach-soft);
    border: 1px solid var(--sbc-line);
    border-radius: 6px;
    padding: 1px 9px;
    margin-bottom: 8px;
}
.sbc-panel-head h2 { margin-bottom: 4px; }
.sbc-panel-head p { margin: 0; font-size: 13px; color: var(--sbc-ink-2); }

.sbc-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.sbc-col { min-width: 0; }

.sbc-sub {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin: 0 0 10px;
}
.sbc-sub + .sbc-sub { margin-top: 20px; }
.sbc-sub i {
    font-style: normal;
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: var(--sbc-teal);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
}
.sbc-sub-note { font-size: 12px; font-weight: 400; color: var(--sbc-ink-3); }

.sbc-mini-btn {
    margin-left: auto;
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    color: var(--sbc-teal);
    background: var(--sbc-teal-soft);
    border: 1px dashed var(--sbc-teal);
    border-radius: 999px;
    padding: 3px 12px;
    cursor: pointer;
    transition: all .15s ease;
}
.sbc-mini-btn:hover { background: var(--sbc-teal); color: #fff; }

.sbc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sbc-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.sbc-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.sbc-field { display: flex; flex-direction: column; gap: 5px; }
.sbc-label { font-size: 13px; font-weight: 600; color: var(--sbc-ink-2); }
.sbc-unit { font-size: 11px; font-weight: 400; color: var(--sbc-ink-3); }
.sbc-input {
    font: inherit;
    font-size: 14px;
    color: var(--sbc-ink);
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line);
    border-radius: 10px;
    padding: 8px 12px;
    width: 100%;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.sbc-input:focus { border-color: var(--sbc-teal); box-shadow: 0 0 0 3px var(--sbc-teal-soft); }
.sbc-mono { font-family: var(--sbc-mono); }
.sbc-input.is-ro { background: transparent; color: var(--sbc-ink-3); }
.sbc-select {
    font: inherit;
    font-size: 14px;
    color: var(--sbc-ink);
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line);
    border-radius: 10px;
    padding: 8px 12px;
    width: 100%;
    outline: none;
}
.sbc-select:focus { border-color: var(--sbc-teal); box-shadow: 0 0 0 3px var(--sbc-teal-soft); }

.sbc-switch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--sbc-ink-2);
    cursor: pointer;
    user-select: none;
}
.sbc-switch input { width: 16px; height: 16px; accent-color: var(--sbc-teal); cursor: pointer; }

/* 分配明细行（面板内） */
.sbc-row {
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line-2);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 10px;
}
.sbc-row-top { display: flex; gap: 8px; align-items: center; margin-bottom: 9px; }
.sbc-row-dot { width: 13px; height: 13px; border-radius: 4px; flex: none; }
.sbc-row-name {
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    color: var(--sbc-ink);
    background: transparent;
    border: none;
    border-bottom: 1px dashed var(--sbc-line);
    flex: 1;
    min-width: 0;
    padding: 2px 0;
    outline: none;
}
.sbc-row-name:focus { border-bottom-color: var(--sbc-teal); }
.sbc-row-del {
    flex: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: var(--sbc-red-soft);
    color: var(--sbc-red);
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
    cursor: pointer;
}
.sbc-row-del:hover { background: var(--sbc-red); color: #fff; }
.sbc-row-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.sbc-row-grid .sbc-input { font-size: 13px; padding: 6px 9px; }
.sbc-row-note { margin-top: 8px; font-size: 12px; color: var(--sbc-ink-3); }
.sbc-row-note b { color: var(--sbc-teal); font-family: var(--sbc-mono); }

/* 预警卡 */
.sbc-alerts { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 12px; }
.sbc-alert {
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line-2);
    border-radius: 12px;
    padding: 13px 15px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--sbc-ink-2);
    border-left: 3px solid var(--sbc-teal);
}
.sbc-alert b { color: var(--sbc-teal); font-family: var(--sbc-mono); }
.sbc-alert.is-warn { border-left-color: var(--sbc-peach-2); }
.sbc-alert.is-warn b { color: var(--sbc-peach); }
.sbc-alert.is-danger { border-left-color: var(--sbc-red); }
.sbc-alert.is-danger b { color: var(--sbc-red); }
.sbc-alert.is-ok { border-left-color: var(--sbc-green); }
.sbc-alert.is-ok b { color: var(--sbc-green); }

/* 事实清单 */
.sbc-facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 12px; }
.sbc-fact {
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line-2);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--sbc-ink-2);
}
.sbc-fact b { color: var(--sbc-teal); font-family: var(--sbc-mono); }
.sbc-fact.is-tip { border-left: 3px solid var(--sbc-peach-2); }
.sbc-fact.is-tip b { color: var(--sbc-peach); }
.sbc-fact.is-ok { border-left: 3px solid var(--sbc-green); }
.sbc-fact.is-ok b { color: var(--sbc-green); }

/* ===================== 按钮 ===================== */
.sbc-btn {
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    color: var(--sbc-ink);
    background: var(--sbc-card);
    border: 1px solid var(--sbc-line);
    border-radius: 10px;
    padding: 9px 18px;
    cursor: pointer;
    transition: all .15s ease;
}
.sbc-btn:hover { border-color: var(--sbc-teal); color: var(--sbc-teal); }
.sbc-btn--primary { background: var(--sbc-teal); border-color: var(--sbc-teal); color: #fff; }
.sbc-btn--primary:hover { background: var(--sbc-teal-2); border-color: var(--sbc-teal-2); color: #fff; }
.sbc-btn--peach { background: var(--sbc-peach-2); border-color: var(--sbc-peach-2); color: #3d1c05; }
.sbc-btn--peach:hover { filter: brightness(1.05); color: #3d1c05; }
.sbc-btn--ghost { background: transparent; }
.sbc-btn:disabled { opacity: .55; cursor: not-allowed; }
.sbc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* ===================== 表格 ===================== */
.sbc-table-wrap { overflow-x: auto; border: 1px solid var(--sbc-line); border-radius: 12px; }
.sbc-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 860px; }
.sbc-table th, .sbc-table td { padding: 9px 11px; text-align: left; border-bottom: 1px solid var(--sbc-line-2); }
.sbc-table th {
    font-size: 12px;
    color: var(--sbc-ink-3);
    background: var(--sbc-card-2);
    white-space: nowrap;
}
.sbc-table td { color: var(--sbc-ink); }
.sbc-table .sbc-mono, .sbc-table td.sbc-mono { font-family: var(--sbc-mono); }
.sbc-table tbody tr:last-child td { border-bottom: none; }
.sbc-table tbody tr:hover { background: var(--sbc-card-2); }
.sbc-op { white-space: nowrap; }
.sbc-del {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: var(--sbc-red-soft);
    color: var(--sbc-red);
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
}
.sbc-del:hover { background: var(--sbc-red); color: #fff; }
.sbc-table .empty-row td { text-align: center; color: var(--sbc-ink-3); padding: 18px 0; }
.sbc-cell-input {
    font: inherit;
    font-size: 12.5px;
    font-family: var(--sbc-mono);
    color: var(--sbc-ink);
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line-2);
    border-radius: 7px;
    padding: 5px 7px;
    width: 100%;
    min-width: 54px;
    outline: none;
}
.sbc-cell-input:focus { border-color: var(--sbc-teal); }
.sbc-cell-name {
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--sbc-ink);
    background: transparent;
    border: none;
    border-bottom: 1px dashed var(--sbc-line);
    width: 100%;
    min-width: 100px;
    padding: 2px 0;
    outline: none;
}
.sbc-cell-name:focus { border-bottom-color: var(--sbc-teal); }
.sbc-tag {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 800;
    border-radius: 999px;
    padding: 1px 9px;
    background: var(--sbc-teal-soft);
    color: var(--sbc-teal);
    white-space: nowrap;
}
.sbc-tag.is-over { background: var(--sbc-red-soft); color: var(--sbc-red); }
.sbc-tag.is-tight { background: var(--sbc-peach-soft); color: var(--sbc-peach); }
.sbc-tag.is-ok { background: var(--sbc-green-soft); color: var(--sbc-green); }

/* ===================== 预格式文本 ===================== */
.sbc-pre {
    margin: 0;
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line-2);
    border-radius: 12px;
    padding: 14px 16px;
    font-family: var(--sbc-mono);
    font-size: 12.5px;
    line-height: 1.8;
    color: var(--sbc-ink-2);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 380px;
    overflow: auto;
}

/* ===================== FAQ ===================== */
.sbc-faq { display: flex; flex-direction: column; gap: 10px; }
.sbc-faq-item {
    background: var(--sbc-card-2);
    border: 1px solid var(--sbc-line-2);
    border-radius: 12px;
    overflow: hidden;
}
.sbc-faq-item summary {
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    color: var(--sbc-ink);
    padding: 12px 40px 12px 16px;
    list-style: none;
    position: relative;
}
.sbc-faq-item summary::-webkit-details-marker { display: none; }
.sbc-faq-item summary::after {
    content: "+";
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--sbc-teal);
    font-size: 18px;
    font-weight: 800;
}
.sbc-faq-item[open] summary::after { content: "−"; }
.sbc-faq-a {
    padding: 0 16px 14px;
    font-size: 13px;
    line-height: 1.95;
    color: var(--sbc-ink-2);
}
.sbc-faq-a b { color: var(--sbc-teal); }

/* ===================== 留言板 ===================== */
.sbc-comments { margin-bottom: 20px; }

/* ===================== A4 预算单（仅打印可见） ===================== */
.sbc-sheet { display: none; }

/* ===================== Toast ===================== */
.sbc-toast {
    position: fixed;
    left: 50%;
    bottom: 32px;
    transform: translateX(-50%) translateY(16px);
    background: rgba(15, 48, 46, .95);
    color: #fff;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
    z-index: 9999;
    max-width: 86vw;
    text-align: center;
}
.sbc-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===================== 响应式 ===================== */
@media (max-width: 980px) {
    .sbc-page { padding: 20px 16px 24px; }
    .sbc-hero { grid-template-columns: 1fr; }
    .sbc-cols { grid-template-columns: 1fr; }
    .sbc-page h1 { font-size: 26px; }
}
@media (max-width: 560px) {
    .sbc-grid, .sbc-grid-3, .sbc-grid-4 { grid-template-columns: 1fr; }
    .sbc-steps { grid-template-columns: 1fr; }
    .sbc-row-grid { grid-template-columns: 1fr 1fr; }
    .sbc-item { grid-template-columns: 14px 1fr 84px 50px; }
}

/* ===================== 打印样式：A4 预算单 ===================== */
@media print {
    body > *:not(.detail-wrap) { display: none !important; }
    .detail-wrap .container > *:not(.sbc-sheet) { display: none !important; }
    .sbc-sheet {
        display: block !important;
        color: #000;
        font-size: 12px;
        line-height: 1.8;
    }
    .sbc-sheet h1 { font-size: 20px; color: #000; margin: 0 0 4px; }
    .sbc-sheet .sbc-sheet-meta { font-size: 11px; color: #444; margin-bottom: 14px; }
    .sbc-sheet table { width: 100%; border-collapse: collapse; margin-bottom: 14px; }
    .sbc-sheet th, .sbc-sheet td { border: 1px solid #999; padding: 5px 8px; text-align: left; }
    .sbc-sheet th { background: #eee; }
    .sbc-sheet .sbc-sheet-sign { margin-top: 26px; display: flex; gap: 60px; color: #333; }
    .sbc-toast, .sbc-comments, .sbc-errbar { display: none !important; }
}