/* ==========================================================================
   团建费用预算计算器 /tool/team-building-budget-calc
   视觉主题：青黛蓝 + 柚橙 —— 户外活动日程表式预算单
   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
   ========================================================================== */

.tbb-page {
    /* ---- 浅色（默认） ---- */
    --tbb-bg: #eef6f8;
    --tbb-bg-2: #e0eef3;
    --tbb-card: #ffffff;
    --tbb-card-2: #f4fafb;
    --tbb-ink: #0f2833;
    --tbb-ink-2: #3a5f6e;
    --tbb-ink-3: #7c99a5;
    --tbb-line: #c8dde4;
    --tbb-line-2: #e0edf1;
    --tbb-deep: #23617a;
    --tbb-deep-2: #357d9a;
    --tbb-deep-soft: #ddecf2;
    --tbb-orange: #d95f1e;
    --tbb-orange-2: #ef8442;
    --tbb-orange-soft: #fdeadd;
    --tbb-green: #1c7a54;
    --tbb-green-soft: #e0f4ec;
    --tbb-red: #c03a2e;
    --tbb-red-soft: #fbe9e6;
    --tbb-amber: #b47710;
    --tbb-amber-soft: #faf0da;
    --tbb-shadow: 0 18px 44px rgba(15, 62, 82, .12);
    --tbb-shadow-sm: 0 6px 16px rgba(15, 62, 82, .08);
    --tbb-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="dark"] .tbb-page {
    /* ---- 深色 ---- */
    --tbb-bg: #05141a;
    --tbb-bg-2: #081c24;
    --tbb-card: #0c2530;
    --tbb-card-2: #11313e;
    --tbb-ink: #e2f2f7;
    --tbb-ink-2: #a4c4d0;
    --tbb-ink-3: #6b8b98;
    --tbb-line: #1d4353;
    --tbb-line-2: #163643;
    --tbb-deep: #66b3d1;
    --tbb-deep-2: #8cc9e0;
    --tbb-deep-soft: #0e2c38;
    --tbb-orange: #f59555;
    --tbb-orange-2: #fbb27c;
    --tbb-orange-soft: #33200f;
    --tbb-green: #5ec494;
    --tbb-green-soft: #10301f;
    --tbb-red: #f09285;
    --tbb-red-soft: #341b17;
    --tbb-amber: #f0b954;
    --tbb-amber-soft: #30230c;
    --tbb-shadow: 0 18px 46px rgba(0, 0, 0, .5);
    --tbb-shadow-sm: 0 6px 16px rgba(0, 0, 0, .38);
}

.tbb-page {
    color: var(--tbb-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(35, 97, 122, .07) 1.5px, transparent 1.9px),
        linear-gradient(180deg, var(--tbb-bg-2), var(--tbb-bg));
    background-size: 22px 22px, auto;
    border: 1px solid var(--tbb-line);
    border-radius: 20px;
    box-shadow: var(--tbb-shadow);
}

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

.tbb-page h1,
.tbb-page h2,
.tbb-page h3 { margin: 0; line-height: 1.38; letter-spacing: .3px; }

.tbb-mono { font-family: var(--tbb-mono); }

/* ---------------- 首屏 hero ---------------- */
.tbb-hero {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 24px;
    align-items: stretch;
    margin-bottom: 18px;
}

.tbb-kicker {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--tbb-deep);
    background: var(--tbb-deep-soft);
    border: 1px solid var(--tbb-line);
    border-radius: 999px;
    padding: 3px 14px;
    margin-bottom: 12px;
}

.tbb-hero h1 {
    font-size: 31px;
    font-weight: 800;
    color: var(--tbb-deep);
    margin: 0 0 10px;
}

.tbb-lead {
    font-size: 15px;
    color: var(--tbb-ink-2);
    margin: 0 0 14px;
}

.tbb-lead b { color: var(--tbb-ink); }

.tbb-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin: 0 0 16px;
}

.tbb-tags li {
    font-size: 12px;
    color: var(--tbb-ink-2);
    background: var(--tbb-card);
    border: 1px solid var(--tbb-line);
    border-radius: 999px;
    padding: 3px 11px;
}

.tbb-steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 0;
    margin: 0;
}

.tbb-steps li {
    background: var(--tbb-card);
    border: 1px solid var(--tbb-line-2);
    border-radius: 14px;
    padding: 10px 12px;
    line-height: 1.5;
}

.tbb-steps b {
    display: inline-flex;
    width: 22px;
    height: 22px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--tbb-deep);
    color: #fff;
    font-size: 12px;
    margin-right: 7px;
}

:root[data-theme="dark"] .tbb-steps b { color: #081c24; }

.tbb-steps span { font-weight: 700; font-size: 13px; margin-right: 6px; }
.tbb-steps i { display: block; font-style: normal; font-size: 12px; color: var(--tbb-ink-3); margin-top: 3px; padding-left: 29px; }

/* ---------------- 首屏速览卡 ---------------- */
.tbb-meter {
    background: var(--tbb-card);
    border: 1px solid var(--tbb-line);
    border-radius: 18px;
    padding: 18px;
    box-shadow: var(--tbb-shadow-sm);
    display: flex;
    flex-direction: column;
}

.tbb-meter-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; }
.tbb-meter-head b { font-size: 16px; color: var(--tbb-deep); }
.tbb-meter-head span { font-size: 12px; color: var(--tbb-ink-3); }

.tbb-quick-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}

.tbb-field { display: block; }

.tbb-label {
    display: block;
    font-size: 12px;
    color: var(--tbb-ink-2);
    margin-bottom: 4px;
}

.tbb-unit { color: var(--tbb-ink-3); font-weight: 400; }

.tbb-input, .tbb-select {
    width: 100%;
    border: 1px solid var(--tbb-line);
    background: var(--tbb-card-2);
    color: var(--tbb-ink);
    border-radius: 10px;
    padding: 8px 10px;
    font-size: 14px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}

.tbb-input:focus, .tbb-select:focus { border-color: var(--tbb-deep-2); box-shadow: 0 0 0 3px var(--tbb-deep-soft); }

.tbb-meter-num {
    background: linear-gradient(135deg, var(--tbb-deep) 0%, #163f52 100%);
    border-radius: 14px;
    padding: 12px 16px;
    color: #fff;
}

:root[data-theme="dark"] .tbb-meter-num { background: linear-gradient(135deg, #12333f 0%, #1a485c 100%); }

.tbb-meter-num .k { display: block; font-size: 12px; opacity: .85; }
.tbb-meter-num .v { display: block; font-size: 26px; font-weight: 800; font-family: var(--tbb-mono); line-height: 1.4; }

.tbb-meter-sub { font-size: 12px; color: var(--tbb-ink-3); margin: 8px 2px 12px; line-height: 1.7; }

.tbb-meter-actions { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: auto; }

/* ---------------- 按钮 ---------------- */
.tbb-btn {
    border: 1px solid var(--tbb-line);
    background: var(--tbb-card);
    color: var(--tbb-ink);
    border-radius: 10px;
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .12s, box-shadow .12s, background .15s;
}

.tbb-btn:hover { transform: translateY(-1px); box-shadow: var(--tbb-shadow-sm); }
.tbb-btn:active { transform: translateY(0); }

.tbb-btn--primary {
    background: var(--tbb-deep);
    border-color: var(--tbb-deep);
    color: #fff;
}

:root[data-theme="dark"] .tbb-btn--primary { color: #081c24; }

.tbb-btn--orange {
    background: var(--tbb-orange);
    border-color: var(--tbb-orange);
    color: #fff;
}

:root[data-theme="dark"] .tbb-btn--orange { color: #33200f; }

.tbb-btn--ghost { background: transparent; color: var(--tbb-ink-2); }

.tbb-mini-btn {
    border: 1px dashed var(--tbb-deep-2);
    background: var(--tbb-deep-soft);
    color: var(--tbb-deep);
    border-radius: 8px;
    padding: 3px 12px;
    font-size: 12px;
    cursor: pointer;
    margin-left: 10px;
    font-weight: 600;
}

.tbb-mini-btn:hover { background: var(--tbb-deep); color: #fff; border-style: solid; }
:root[data-theme="dark"] .tbb-mini-btn:hover { color: #081c24; }

/* ---------------- 预置示例 ---------------- */
.tbb-presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    background: var(--tbb-card-2);
    border: 1px dashed var(--tbb-line);
    border-radius: 14px;
    padding: 10px 14px;
    margin-bottom: 16px;
}

.tbb-presets-label { font-size: 12px; color: var(--tbb-ink-3); }

.tbb-presets button {
    border: 1px solid var(--tbb-line);
    background: var(--tbb-card);
    color: var(--tbb-ink-2);
    border-radius: 999px;
    padding: 4px 13px;
    font-size: 13px;
    cursor: pointer;
    transition: all .15s;
}

.tbb-presets button:hover { border-color: var(--tbb-deep-2); color: var(--tbb-deep); background: var(--tbb-deep-soft); }

/* ---------------- 校验条 ---------------- */
.tbb-errbar {
    border-radius: 12px;
    padding: 10px 16px;
    font-size: 13px;
    line-height: 1.9;
    margin-bottom: 16px;
    border: 1px solid;
}

.tbb-errbar[hidden] { display: none; }

.tbb-errbar.e { background: var(--tbb-red-soft); border-color: var(--tbb-red); color: var(--tbb-red); }
.tbb-errbar.w { background: var(--tbb-amber-soft); border-color: var(--tbb-amber); color: var(--tbb-amber); }
.tbb-errbar.ok { background: var(--tbb-green-soft); border-color: var(--tbb-green); color: var(--tbb-green); }

/* ---------------- 面板 ---------------- */
.tbb-panel {
    background: var(--tbb-card);
    border: 1px solid var(--tbb-line-2);
    border-radius: 18px;
    padding: 22px 22px 24px;
    margin-bottom: 18px;
}

.tbb-panel-head { margin-bottom: 16px; }

.tbb-pk {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
    background: var(--tbb-orange);
    border-radius: 6px;
    padding: 2px 10px;
    margin-bottom: 8px;
}

:root[data-theme="dark"] .tbb-pk { color: #33200f; }

.tbb-panel-head h2 { font-size: 20px; font-weight: 800; color: var(--tbb-ink); margin-bottom: 4px; }
.tbb-panel-head p { font-size: 13px; color: var(--tbb-ink-3); margin: 0; }

.tbb-sub {
    font-size: 15px;
    font-weight: 700;
    color: var(--tbb-ink);
    margin: 0 0 10px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.tbb-sub i {
    font-style: normal;
    font-size: 12px;
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: var(--tbb-deep-soft);
    color: var(--tbb-deep);
    margin-right: 8px;
}

.tbb-sub-note { font-size: 12px; font-weight: 400; color: var(--tbb-ink-3); margin-left: 10px; }

.tbb-cols { display: grid; grid-template-columns: 1.3fr 1fr; gap: 22px; }
.tbb-col { min-width: 0; }

.tbb-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.tbb-row-note { font-size: 12px; color: var(--tbb-ink-3); margin: 8px 0 0; line-height: 1.7; }

/* ---------------- 表格 ---------------- */
.tbb-table-wrap { overflow-x: auto; border: 1px solid var(--tbb-line-2); border-radius: 12px; }

.tbb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 560px;
}

.tbb-table th {
    background: var(--tbb-card-2);
    color: var(--tbb-ink-2);
    font-weight: 600;
    text-align: left;
    padding: 8px 10px;
    white-space: nowrap;
    border-bottom: 1px solid var(--tbb-line);
}

.tbb-table td {
    padding: 7px 10px;
    border-bottom: 1px solid var(--tbb-line-2);
    vertical-align: middle;
}

.tbb-table tbody tr:last-child td { border-bottom: none; }
.tbb-table tbody tr:hover { background: var(--tbb-card-2); }
.tbb-table td.num, .tbb-table th.num { text-align: right; font-family: var(--tbb-mono); }

.tbb-table .cell-input, .tbb-table .cell-select {
    width: 100%;
    min-width: 70px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--tbb-ink);
    border-radius: 7px;
    padding: 5px 7px;
    font-size: 13px;
    font-family: var(--tbb-mono);
    outline: none;
}

.tbb-table .cell-input.txt, .tbb-table .cell-select { font-family: inherit; }
.tbb-table .cell-input.txt { min-width: 100px; }
.tbb-table .cell-select { cursor: pointer; }

.tbb-table .cell-input:hover { border-color: var(--tbb-line); background: var(--tbb-card); }
.tbb-table .cell-input:focus { border-color: var(--tbb-deep-2); background: var(--tbb-card); }

.tbb-table .row-del {
    border: none;
    background: transparent;
    color: var(--tbb-ink-3);
    font-size: 15px;
    cursor: pointer;
    padding: 2px 8px;
    border-radius: 6px;
}

.tbb-table .row-del:hover { color: var(--tbb-red); background: var(--tbb-red-soft); }

.tbb-table tr.total-row td { background: var(--tbb-deep-soft); font-weight: 700; border-top: 2px solid var(--tbb-deep); }
.tbb-table tr.reserve-row td { background: var(--tbb-orange-soft); }

.tbb-op { width: 44px; text-align: center; }

/* ---------------- 三档卡片 ---------------- */
.tbb-tier-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 16px;
}

.tbb-tier-card {
    border: 1px solid var(--tbb-line-2);
    border-radius: 16px;
    padding: 14px 16px;
    background: var(--tbb-card-2);
    cursor: pointer;
    transition: all .15s;
    position: relative;
}

.tbb-tier-card:hover { transform: translateY(-2px); box-shadow: var(--tbb-shadow-sm); }

.tbb-tier-card.active {
    border-color: var(--tbb-orange);
    background: var(--tbb-orange-soft);
}

.tbb-tier-card.active::after {
    content: '✓ 当前查看';
    position: absolute;
    top: 10px;
    right: 12px;
    font-size: 11px;
    color: var(--tbb-orange);
    font-weight: 700;
}

.tbb-tier-card .tc-name { font-size: 13px; font-weight: 700; color: var(--tbb-ink-2); }
.tbb-tier-card .tc-total { display: block; font-size: 24px; font-weight: 800; font-family: var(--tbb-mono); color: var(--tbb-deep); margin: 2px 0; }
.tbb-tier-card .tc-per { display: block; font-size: 12px; color: var(--tbb-ink-3); }
.tbb-tier-card.active .tc-total { color: var(--tbb-orange); }

/* ---------------- 条形图 ---------------- */
.tbb-bars { display: grid; gap: 8px; }

.tbb-bar-row {
    display: grid;
    grid-template-columns: 150px 1fr 84px;
    gap: 10px;
    align-items: center;
    font-size: 13px;
}

.tbb-bar-row .b-name {
    color: var(--tbb-ink-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tbb-bar-track {
    height: 14px;
    border-radius: 999px;
    background: var(--tbb-card-2);
    border: 1px solid var(--tbb-line-2);
    overflow: hidden;
}

.tbb-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--tbb-deep), var(--tbb-deep-2));
    transition: width .3s;
}

.tbb-bar-fill.reserve { background: linear-gradient(90deg, var(--tbb-orange), var(--tbb-orange-2)); }

.tbb-bar-row .b-val { text-align: right; font-family: var(--tbb-mono); color: var(--tbb-ink-2); }

/* ---------------- facts / checklist ---------------- */
.tbb-facts { display: grid; gap: 8px; }

.tbb-fact {
    display: flex;
    gap: 9px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--tbb-ink-2);
    padding: 9px 13px;
    border-radius: 10px;
    border: 1px solid var(--tbb-line-2);
    background: var(--tbb-card-2);
}

.tbb-fact b { color: var(--tbb-ink); }
.tbb-fact.ok { border-color: var(--tbb-green); background: var(--tbb-green-soft); }
.tbb-fact.warn { border-color: var(--tbb-amber); background: var(--tbb-amber-soft); }
.tbb-fact.bad { border-color: var(--tbb-red); background: var(--tbb-red-soft); }

.tbb-checklist { display: grid; gap: 6px; }

.tbb-check {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--tbb-ink-2);
    line-height: 1.65;
    padding: 7px 11px;
    border: 1px solid var(--tbb-line-2);
    border-radius: 10px;
    background: var(--tbb-card-2);
    cursor: pointer;
}

.tbb-check input { margin-top: 4px; accent-color: var(--tbb-orange); }
.tbb-check input:checked + span { color: var(--tbb-ink-3); text-decoration: line-through; }

.tbb-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0; }

.tbb-pre {
    background: var(--tbb-card-2);
    border: 1px solid var(--tbb-line-2);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 12px;
    font-family: var(--tbb-mono);
    color: var(--tbb-ink-2);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 220px;
    overflow: auto;
}

/* ---------------- FAQ ---------------- */
.tbb-faq { display: grid; gap: 10px; }

.tbb-faq-item {
    border: 1px solid var(--tbb-line-2);
    border-radius: 12px;
    background: var(--tbb-card-2);
    overflow: hidden;
}

.tbb-faq-item summary {
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    color: var(--tbb-ink);
    padding: 11px 15px;
    list-style: none;
    position: relative;
    padding-right: 34px;
}

.tbb-faq-item summary::-webkit-details-marker { display: none; }

.tbb-faq-item summary::after {
    content: '+';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--tbb-deep);
    font-size: 17px;
    font-weight: 700;
}

.tbb-faq-item[open] summary::after { content: '−'; }

.tbb-faq-a {
    font-size: 13px;
    color: var(--tbb-ink-2);
    line-height: 1.85;
    padding: 0 15px 13px;
}

.tbb-faq-a b { color: var(--tbb-ink); }

/* ---------------- 留言板 ---------------- */
.tbb-comments { margin-bottom: 8px; }

/* ---------------- 提示浮层 ---------------- */
.tbb-toast {
    position: fixed;
    left: 50%;
    bottom: 34px;
    transform: translate(-50%, 16px);
    background: var(--tbb-ink);
    color: var(--tbb-bg);
    font-size: 13px;
    padding: 9px 18px;
    border-radius: 999px;
    opacity: 0;
    pointer-events: none;
    transition: all .25s;
    z-index: 999;
}

:root[data-theme="dark"] .tbb-toast { background: var(--tbb-deep-soft); color: var(--tbb-ink); border: 1px solid var(--tbb-line); }
.tbb-toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------------- A4 打印单 ---------------- */
.tbb-sheet { display: none; }

@media print {
    body > *:not(.detail-wrap) { display: none !important; }
    .detail-wrap .container > *:not(.tbb-sheet) { display: none !important; }
    .tbb-sheet {
        display: block !important;
        color: #000;
        font-size: 12px;
        line-height: 1.8;
    }
    .tbb-sheet h1 { font-size: 20px; color: #000; margin: 0 0 4px; }
    .tbb-sheet .tbb-sheet-meta { font-size: 11px; color: #444; margin-bottom: 14px; }
    .tbb-sheet table { width: 100%; border-collapse: collapse; margin-bottom: 14px; }
    .tbb-sheet th, .tbb-sheet td { border: 1px solid #999; padding: 5px 8px; text-align: left; }
    .tbb-sheet th { background: #eee; }
    .tbb-sheet td.num, .tbb-sheet th.num { text-align: right; }
    .tbb-sheet .tbb-sheet-sign { margin-top: 30px; display: flex; gap: 56px; color: #333; }
    .tbb-sheet .tbb-sheet-note { font-size: 11px; color: #555; margin-top: 10px; }
    .tbb-toast, .tbb-comments, .tbb-errbar { display: none !important; }
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 900px) {
    .tbb-page { padding: 18px 14px 22px; }
    .tbb-hero { grid-template-columns: 1fr; }
    .tbb-hero h1 { font-size: 25px; }
    .tbb-cols { grid-template-columns: 1fr; }
    .tbb-tier-cards { grid-template-columns: 1fr; }
    .tbb-grid-2 { grid-template-columns: 1fr; }
    .tbb-steps { grid-template-columns: 1fr; }
    .tbb-bar-row { grid-template-columns: 100px 1fr 76px; }
    .tbb-rel-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------------- 口径说明与常见误填 ---------------- */
.tbb-note-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--tbb-ink);
    margin: 0 0 12px;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
}

.tbb-note-sub { font-size: 12px; font-weight: 400; color: var(--tbb-ink-3); margin-left: 12px; }

.tbb-note-table { width: 100%; border-collapse: collapse; font-size: 13px; }

.tbb-note-table th {
    width: 96px;
    text-align: left;
    vertical-align: top;
    color: var(--tbb-ink);
    font-weight: 700;
    padding: 10px 14px 10px 0;
    border-bottom: 1px solid var(--tbb-line-2);
    white-space: nowrap;
}

.tbb-note-table td {
    color: var(--tbb-ink-2);
    line-height: 1.85;
    padding: 10px 0;
    border-bottom: 1px solid var(--tbb-line-2);
}

.tbb-note-table td b { color: var(--tbb-ink); }
.tbb-note-table tr:last-child th, .tbb-note-table tr:last-child td { border-bottom: none; }

/* ---------------- 信息标签页 ---------------- */
.tbb-tabs {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--tbb-line-2);
    margin-top: 26px;
}

.tbb-tab {
    border: none;
    background: transparent;
    color: var(--tbb-ink-2);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 16px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-family: inherit;
}

.tbb-tab:hover { color: var(--tbb-deep); }
.tbb-tab.active { color: var(--tbb-orange); border-bottom-color: var(--tbb-orange); }

.tbb-tpanel {
    display: none;
    background: var(--tbb-card);
    border: 1px solid var(--tbb-line-2);
    border-top: none;
    border-radius: 0 0 18px 18px;
    padding: 20px 22px 22px;
}

.tbb-tpanel.active { display: block; }

.tbb-tpanel h2 { font-size: 16px; font-weight: 800; color: var(--tbb-ink); margin: 0 0 10px; }
.tbb-tpanel p { font-size: 13px; color: var(--tbb-ink-2); line-height: 1.9; margin: 0 0 12px; }
.tbb-tpanel p:last-child { margin-bottom: 0; }

.tbb-tpanel ol {
    font-size: 13px;
    line-height: 2.1;
    color: var(--tbb-ink-2);
    padding-left: 20px;
    margin: 0;
}

.tbb-tpanel ol b { color: var(--tbb-ink); }

.tbb-timeline { list-style: none; padding: 0; margin: 0; }

.tbb-timeline li {
    display: flex;
    gap: 10px;
    font-size: 13px;
    color: var(--tbb-ink-2);
    padding: 6px 0;
    line-height: 1.75;
}

.tbb-timeline .ver {
    flex: none;
    font-weight: 700;
    color: var(--tbb-orange);
    background: var(--tbb-orange-soft);
    border-radius: 6px;
    padding: 0 8px;
    height: fit-content;
}

.tbb-timeline .date { flex: none; color: var(--tbb-ink-3); font-family: var(--tbb-mono); }

/* ---------------- 相关工具 ---------------- */
.tbb-rel-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }

.tbb-rel {
    display: flex;
    gap: 10px;
    align-items: center;
    border: 1px solid var(--tbb-line-2);
    border-radius: 12px;
    padding: 12px;
    background: var(--tbb-card-2);
    text-decoration: none;
    transition: all .15s;
}

.tbb-rel:hover { border-color: var(--tbb-deep-2); transform: translateY(-2px); box-shadow: var(--tbb-shadow-sm); }
.tbb-rel .ri { font-size: 20px; flex: none; }
.tbb-rel b { display: block; font-size: 13px; color: var(--tbb-ink); }
.tbb-rel small { display: block; font-size: 11px; color: var(--tbb-ink-3); margin-top: 2px; }