/* ============================================================
   class-fund-split · 班费分摊测算
   黑板班委公示栏风（cfs-）：墨绿黑板底 + 粉笔字描边 + 图钉便签墙
   + 米黄公示纸台账；hero 为带木框的黑板横幅
   ============================================================ */
.cfs-page {
    --cfs-board: #2c4a3b;
    --cfs-board-deep: #223b2f;
    --cfs-board-line: rgba(244, 240, 226, 0.32);
    --cfs-wood: #7d5433;
    --cfs-wood-deep: #5c3d24;
    --cfs-chalk: #f4f0e2;
    --cfs-chalk-dim: rgba(244, 240, 226, 0.72);
    --cfs-yellow: #ecc94f;
    --cfs-pink: #ef9aa6;
    --cfs-blue: #9cc8e8;
    --cfs-paper: #fbf5e4;
    --cfs-paper-deep: #f1e7c9;
    --cfs-paper-line: #ddd0a8;
    --cfs-ink: #38352a;
    --cfs-ink-sub: #7a7157;
    --cfs-pin: #c8453f;
    --cfs-good: #3f7d58;
    --cfs-warn: #b96a20;
    --cfs-shadow: 0 8px 22px rgba(20, 40, 30, 0.28);

    color: var(--cfs-ink);
    font-size: 15px;
    line-height: 1.8;
}

:root[data-theme="dark"] .cfs-page {
    --cfs-board: #1d2f26;
    --cfs-board-deep: #16241d;
    --cfs-board-line: rgba(232, 228, 210, 0.22);
    --cfs-wood: #57391f;
    --cfs-wood-deep: #3d2814;
    --cfs-chalk: #e6e2cf;
    --cfs-chalk-dim: rgba(230, 226, 207, 0.66);
    --cfs-yellow: #d9b641;
    --cfs-pink: #d98592;
    --cfs-blue: #85b3d3;
    --cfs-paper: #2b2a21;
    --cfs-paper-deep: #333126;
    --cfs-paper-line: #4b4634;
    --cfs-ink: #e2ddc8;
    --cfs-ink-sub: #a29a7c;
    --cfs-pin: #d9615a;
    --cfs-good: #74b18c;
    --cfs-warn: #d99a52;
    --cfs-shadow: 0 8px 22px rgba(0, 0, 0, 0.5);
}

.cfs-page h1, .cfs-page h2, .cfs-page h3 { line-height: 1.45; margin: 0; }
.cfs-page b, .cfs-page strong { color: inherit; }

/* ---------- 首屏：木框黑板 ---------- */
.cfs-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(250px, 0.8fr);
    gap: 26px;
    align-items: center;
    padding: 30px 34px;
    margin-bottom: 24px;
    border-radius: 10px;
    border: 10px solid var(--cfs-wood);
    outline: 3px solid var(--cfs-wood-deep);
    background:
        radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.06) 0, transparent 30%),
        radial-gradient(circle at 85% 80%, rgba(255, 255, 255, 0.05) 0, transparent 26%),
        linear-gradient(165deg, var(--cfs-board) 0%, var(--cfs-board-deep) 100%);
    box-shadow: var(--cfs-shadow), inset 0 0 60px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}
/* 粉笔灰擦痕 */
.cfs-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(115deg, transparent 0 46px, rgba(244, 240, 226, 0.05) 46px 48px);
    pointer-events: none;
}
.cfs-hero > * { position: relative; z-index: 1; }

.cfs-kicker {
    display: inline-block;
    padding: 4px 16px;
    margin-bottom: 12px;
    border: 1.5px dashed var(--cfs-yellow);
    border-radius: 3px;
    color: var(--cfs-yellow);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.32em;
}
.cfs-hero h1 {
    color: var(--cfs-chalk);
    font-size: clamp(26px, 3.4vw, 38px);
    font-weight: 900;
    letter-spacing: 0.06em;
    text-shadow: 0 1px 0 rgba(244, 240, 226, 0.35), 0 0 14px rgba(244, 240, 226, 0.18);
}
.cfs-hero-sub { margin: 10px 0 14px; max-width: 58ch; color: var(--cfs-chalk-dim); font-size: 15px; }
.cfs-hero-sub b { color: var(--cfs-yellow); }
.cfs-hero-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.cfs-hero-chips li {
    padding: 4px 13px;
    border-radius: 999px;
    border: 1.5px solid var(--cfs-board-line);
    color: var(--cfs-chalk-dim);
    font-size: 12px;
    font-weight: 700;
}

/* 公示便签（hero 右侧） */
.cfs-notice {
    position: relative;
    display: grid;
    gap: 6px;
    justify-items: center;
    padding: 26px 20px 18px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--cfs-paper) 0%, var(--cfs-paper-deep) 100%);
    box-shadow: 0 10px 18px rgba(0, 0, 0, 0.35);
    transform: rotate(1.2deg);
    text-align: center;
}
.cfs-pin {
    position: absolute;
    top: 9px;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: radial-gradient(circle at 32% 30%, #f08a80 0, var(--cfs-pin) 55%, #8e2c27 100%);
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.4);
}
.cfs-pin--l { left: 16px; }
.cfs-pin--r { right: 16px; }
.cfs-notice-tag {
    color: var(--cfs-ink-sub);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.18em;
}
.cfs-notice-num {
    color: var(--cfs-pin);
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 900;
    font-variant-numeric: tabular-nums;
}
.cfs-notice-meta { color: var(--cfs-ink); font-size: 13px; font-weight: 700; }
.cfs-notice-tip { color: var(--cfs-ink-sub); font-size: 11.5px; line-height: 1.7; }

/* ---------- 黑板分区通用 ---------- */
.cfs-board {
    position: relative;
    padding: 22px 26px 20px;
    margin-bottom: 22px;
    border-radius: 8px;
    border: 6px solid var(--cfs-wood);
    background: linear-gradient(170deg, var(--cfs-board) 0%, var(--cfs-board-deep) 100%);
    box-shadow: var(--cfs-shadow);
}
.cfs-chalk-h {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 14px;
    color: var(--cfs-chalk);
    font-size: 19px;
    font-weight: 900;
    letter-spacing: 0.04em;
    text-shadow: 0 1px 0 rgba(244, 240, 226, 0.28);
}
.cfs-chalk-h::after {
    content: "";
    flex: 1 1 60px;
    height: 0;
    border-bottom: 2px dashed var(--cfs-board-line);
}
.cfs-no {
    padding: 2px 9px;
    border-radius: 3px;
    background: var(--cfs-yellow);
    color: #4a3a10;
    font-size: 13px;
    font-weight: 900;
}
:root[data-theme="dark"] .cfs-no { color: #2b2109; }
.cfs-chalk-sub { color: var(--cfs-chalk-dim); font-size: 12.5px; font-weight: 500; }
.cfs-chalk-note { margin: 12px 0 0; color: var(--cfs-blue); font-size: 12.5px; line-height: 1.8; }
.cfs-chalk-note b { color: var(--cfs-yellow); }

/* 输入控件（黑板粉笔风） */
.cfs-field { display: grid; gap: 6px; min-width: 0; }
.cfs-label { color: var(--cfs-chalk-dim); font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em; }
.cfs-input {
    width: 100%;
    padding: 9px 12px;
    border-radius: 4px;
    border: 1.5px dashed var(--cfs-board-line);
    background: rgba(244, 240, 226, 0.94);
    color: var(--cfs-ink);
    font-size: 15px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
.cfs-input:focus { outline: 2px solid var(--cfs-yellow); outline-offset: 1px; }
.cfs-select-wrap { position: relative; display: block; }
.cfs-select-wrap select { appearance: none; -webkit-appearance: none; padding-right: 30px; }
.cfs-select-wrap::after {
    content: "▾";
    position: absolute;
    right: 11px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cfs-ink-sub);
    pointer-events: none;
    font-size: 13px;
}

.cfs-rules-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }

/* ---------- 02 图钉便签墙 ---------- */
.cfs-notes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.cfs-note {
    position: relative;
    display: grid;
    gap: 3px;
    padding: 22px 14px 12px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--cfs-paper) 0%, var(--cfs-paper-deep) 100%);
    box-shadow: 0 7px 14px rgba(0, 0, 0, 0.32);
    transform: rotate(var(--cfs-tilt, 0deg));
    transition: transform 0.18s, box-shadow 0.18s;
    cursor: pointer;
}
.cfs-note:hover { transform: rotate(0deg) translateY(-3px); box-shadow: 0 12px 20px rgba(0, 0, 0, 0.36); }
.cfs-note::before {
    content: "";
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: radial-gradient(circle at 32% 30%, #f08a80 0, var(--cfs-pin) 55%, #8e2c27 100%);
    box-shadow: 0 3px 4px rgba(0, 0, 0, 0.35);
}
.cfs-note-check {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 17px;
    height: 17px;
    accent-color: var(--cfs-good);
    cursor: pointer;
}
.cfs-note-emoji { font-size: 21px; line-height: 1.2; }
.cfs-note-name { color: var(--cfs-ink); font-size: 13.5px; font-weight: 800; line-height: 1.5; }
.cfs-note-amt { display: flex; align-items: center; gap: 5px; }
.cfs-amt {
    width: 78px;
    padding: 4px 7px;
    border-radius: 3px;
    border: 1px solid var(--cfs-paper-line);
    background: #fff;
    color: var(--cfs-ink);
    font-size: 14px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}
:root[data-theme="dark"] .cfs-amt { background: #20201a; }
.cfs-amt:focus { outline: 2px solid var(--cfs-good); }
.cfs-note-amt i { font-style: normal; color: var(--cfs-ink-sub); font-size: 12px; }
.cfs-note small { color: var(--cfs-ink-sub); font-size: 11px; line-height: 1.6; }
.cfs-note:not(:has(:checked)) { opacity: 0.55; filter: saturate(0.5); }
.cfs-note:has(:checked) .cfs-note-name { color: var(--cfs-good); }

/* ---------- 错误与操作 ---------- */
.cfs-error {
    padding: 10px 16px;
    margin-bottom: 16px;
    border-radius: 6px;
    border: 1.5px solid var(--cfs-pin);
    background: rgba(200, 69, 63, 0.1);
    color: var(--cfs-pin);
    font-size: 13.5px;
    font-weight: 700;
}
.cfs-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.cfs-btn {
    padding: 10px 22px;
    border-radius: 4px;
    border: 2px solid var(--cfs-board-deep);
    background: var(--cfs-paper);
    color: var(--cfs-board-deep);
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.18s;
}
.cfs-btn:hover { transform: translateY(-2px); box-shadow: 0 5px 12px rgba(20, 40, 30, 0.25); }
.cfs-btn--primary { background: var(--cfs-board); color: var(--cfs-chalk); border-color: var(--cfs-wood); }
.cfs-btn--primary:hover { background: var(--cfs-board-deep); }

/* ---------- 03 台账：黑板 KPI + 公示纸表格 ---------- */
.cfs-ledger { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 22px; margin-bottom: 24px; }
.cfs-kpi-board { margin-bottom: 0; }
.cfs-kpis { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.cfs-kpi {
    display: grid;
    gap: 2px;
    padding: 12px 14px;
    border-radius: 5px;
    border: 1.5px dashed var(--cfs-board-line);
}
.cfs-kpi span { color: var(--cfs-chalk-dim); font-size: 12px; font-weight: 700; }
.cfs-kpi b { color: var(--cfs-chalk); font-size: 21px; font-weight: 900; font-variant-numeric: tabular-nums; text-shadow: 0 1px 0 rgba(244, 240, 226, 0.25); }
.cfs-kpi--hl { grid-column: 1 / -1; border-style: solid; border-color: var(--cfs-yellow); }
.cfs-kpi--hl b { color: var(--cfs-yellow); font-size: 27px; }
.cfs-split {
    margin-top: 12px;
    padding: 8px 13px;
    border-radius: 4px;
    background: rgba(156, 200, 232, 0.14);
    color: var(--cfs-blue);
    font-size: 12.5px;
    font-weight: 700;
    line-height: 1.75;
}
.cfs-field--surplus { margin-top: 14px; }
.cfs-surplus-note { margin: 10px 0 0; color: var(--cfs-pink); font-size: 13px; font-weight: 700; line-height: 1.8; }

.cfs-paper {
    position: relative;
    padding: 26px 22px 18px;
    margin-top: 16px;
    border-radius: 3px;
    background:
        repeating-linear-gradient(180deg, transparent 0 30px, var(--cfs-paper-line) 30px 31px),
        linear-gradient(180deg, var(--cfs-paper) 0%, var(--cfs-paper-deep) 100%);
    box-shadow: var(--cfs-shadow);
}
.cfs-paper .cfs-pin--l { left: 22px; }
.cfs-paper-h {
    margin-bottom: 10px;
    color: var(--cfs-ink);
    font-size: 16.5px;
    font-weight: 900;
    letter-spacing: 0.05em;
    text-align: center;
    border-bottom: 2px solid var(--cfs-pin);
    padding-bottom: 8px;
}
.cfs-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.cfs-table th {
    padding: 7px 9px;
    color: var(--cfs-ink);
    text-align: left;
    border-bottom: 1.5px solid var(--cfs-ink-sub);
    font-weight: 800;
}
.cfs-table th:not(:first-child), .cfs-table td:not(:first-child) { text-align: right; font-variant-numeric: tabular-nums; }
.cfs-table td { padding: 7px 9px; color: var(--cfs-ink); }
.cfs-table tr.cfs-row-in td { color: var(--cfs-good); font-weight: 800; }
.cfs-table tr.cfs-row-end td { color: var(--cfs-pin); font-weight: 900; border-top: 1.5px dashed var(--cfs-ink-sub); }
.cfs-empty { text-align: center !important; color: var(--cfs-ink-sub); }
.cfs-table-tip { margin: 10px 0 0; color: var(--cfs-ink-sub); font-size: 11.5px; line-height: 1.75; }

/* ---------- 04 表决阶梯 ---------- */
.cfs-board--vote { margin-bottom: 8px; }
.cfs-vote-row { display: grid; grid-template-columns: minmax(0, 260px) minmax(0, 1fr); gap: 16px; align-items: end; margin-bottom: 14px; }
.cfs-vote-result {
    padding: 10px 16px;
    border-radius: 5px;
    border: 1.5px solid var(--cfs-yellow);
    background: rgba(236, 201, 79, 0.12);
    color: var(--cfs-chalk);
    font-size: 14px;
    font-weight: 800;
    line-height: 1.75;
    min-height: 44px;
}
.cfs-ladder { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; counter-reset: cfsRung; }
.cfs-rung {
    position: relative;
    display: grid;
    gap: 4px;
    padding: 13px 15px;
    border-radius: 5px;
    border: 1.5px dashed var(--cfs-board-line);
    opacity: 0.55;
    transition: all 0.2s;
}
.cfs-rung b { color: var(--cfs-chalk); font-size: 14.5px; font-weight: 900; }
.cfs-rung span { color: var(--cfs-chalk-dim); font-size: 12px; line-height: 1.75; }
.cfs-rung.is-on { opacity: 1; border-style: solid; border-color: var(--cfs-yellow); background: rgba(236, 201, 79, 0.1); transform: translateY(-3px); }
.cfs-rung.is-on b { color: var(--cfs-yellow); }

/* ---------- 返回顶部 & toast ---------- */
.cfs-top {
    position: fixed;
    right: 22px;
    bottom: 26px;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    border: 2px solid var(--cfs-wood);
    background: var(--cfs-board);
    color: var(--cfs-chalk);
    font-size: 18px;
    font-weight: 900;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all 0.25s;
    box-shadow: var(--cfs-shadow);
    z-index: 50;
}
.cfs-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.cfs-top:hover { background: var(--cfs-board-deep); color: var(--cfs-yellow); }

.cfs-toast {
    position: fixed;
    left: 50%;
    bottom: 90px;
    transform: translateX(-50%) translateY(10px);
    padding: 10px 20px;
    border-radius: 6px;
    background: var(--cfs-board-deep);
    border: 1.5px dashed var(--cfs-yellow);
    color: var(--cfs-chalk);
    font-size: 13.5px;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s;
    z-index: 60;
}
.cfs-toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .cfs-hero { grid-template-columns: minmax(0, 1fr) minmax(230px, 0.55fr); padding: 24px 22px; }
    .cfs-notes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cfs-ledger { grid-template-columns: 1fr; }
    .cfs-rules-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .cfs-hero { grid-template-columns: 1fr; border-width: 7px; }
    .cfs-notice { transform: rotate(0deg); }
    .cfs-notes { grid-template-columns: 1fr; }
    .cfs-ladder { grid-template-columns: 1fr; }
    .cfs-kpis { grid-template-columns: 1fr; }
    .cfs-vote-row { grid-template-columns: 1fr; }
    .cfs-actions { display: grid; grid-template-columns: 1fr; }
    .cfs-actions .cfs-btn { width: 100%; }
    .cfs-board { padding: 18px 16px 16px; }
    .cfs-top { right: 14px; bottom: 18px; }
}