/* ======================================================================
 *  昆虫观察记录卡 /tool/bug-observation-card
 *  风格：自然手账 —— 苔绿 + 纸色 + 虚线裁切边
 *  深色模式随站点 [data-theme="dark"]，本页变量作用域 .boc-page
 * ====================================================================== */

.boc-page {
    --boc-leaf: #4d7c0f;
    --boc-leaf-2: #65a30d;
    --boc-bark: #3f3a2e;
    --boc-paper: #faf6ec;
    --boc-paper-2: #f3ecd9;
    --boc-line: #d9cfb4;
    --boc-muted: #8a7f63;
    --boc-text: #332e22;
    --boc-shadow: 0 10px 30px -14px rgba(63, 58, 46, .35);
    color: var(--boc-text);
    padding-bottom: 70px;
    background:
        radial-gradient(900px 400px at 8% -6%, rgba(101, 163, 13, .10), transparent 60%),
        radial-gradient(700px 360px at 96% 4%, rgba(180, 83, 9, .07), transparent 55%);
}
:root[data-theme="dark"] .boc-page {
    --boc-leaf: #84cc16;
    --boc-leaf-2: #a3e635;
    --boc-bark: #e6dfc8;
    --boc-paper: #1c2416;
    --boc-paper-2: #232e1c;
    --boc-line: #3c4a30;
    --boc-muted: #93987e;
    --boc-text: #e8e6d8;
    --boc-shadow: 0 14px 34px -16px rgba(0, 0, 0, .7);
}

/* ---------- 面包屑 ---------- */
.boc-crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--boc-muted);
    padding: 18px 0 0;
}
.boc-crumb a { color: var(--boc-muted); text-decoration: none; }
.boc-crumb a:hover { color: var(--boc-leaf); }
.boc-crumb b { color: var(--boc-text); font-weight: 600; }

/* ---------- Hero ---------- */
.boc-hero { text-align: center; padding: 26px 0 30px; }
.boc-hero-ic {
    display: inline-grid;
    place-items: center;
    width: 64px;
    height: 64px;
    font-size: 32px;
    border-radius: 20px;
    background: var(--boc-paper);
    border: 1px solid var(--boc-line);
    box-shadow: var(--boc-shadow);
    margin-bottom: 14px;
    transform: rotate(-4deg);
}
.boc-hero h1 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 800;
    letter-spacing: -.02em;
    margin: 0 0 10px;
}
.boc-hero p {
    max-width: 600px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.8;
    color: var(--boc-muted);
}
.boc-hero em {
    font-style: normal;
    font-weight: 700;
    color: var(--boc-leaf);
}

/* ---------- 布局 ---------- */
.boc-layout {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 26px;
    align-items: start;
}

/* ---------- 表单卡片 ---------- */
.boc-card {
    background: var(--boc-paper);
    border: 1px solid var(--boc-line);
    border-radius: 16px;
    padding: 20px 22px;
    box-shadow: var(--boc-shadow);
    margin-bottom: 18px;
}
.boc-card-t {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 800;
    margin: 0 0 16px;
}
.boc-card-t i {
    font-style: normal;
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    font-size: 13px;
    border-radius: 8px;
    color: #fff;
    background: var(--boc-leaf);
}
.boc-t-small { font-size: 12px; font-weight: 500; color: var(--boc-muted); margin-left: auto; }
.boc-frow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.boc-field { display: block; margin-bottom: 12px; }
.boc-field > span {
    display: block;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 6px;
}
.boc-field > span small { font-weight: 400; color: var(--boc-muted); }
.boc-field input,
.boc-field select,
.boc-field textarea {
    width: 100%;
    border: 1px solid var(--boc-line);
    border-radius: 10px;
    background: var(--boc-paper-2);
    color: var(--boc-text);
    font: inherit;
    font-size: 14px;
    padding: 9px 12px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
.boc-field input:focus,
.boc-field select:focus,
.boc-field textarea:focus {
    border-color: var(--boc-leaf-2);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--boc-leaf-2) 20%, transparent);
}
.boc-field textarea { resize: vertical; line-height: 1.7; }

/* ---------- 画笔工具行 ---------- */
.boc-pen-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.boc-pen-label { font-size: 13px; font-weight: 700; margin-right: 2px; }
.boc-pen {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--boc-line);
    cursor: pointer;
    transition: transform .15s, border-color .15s;
}
.boc-pen:hover { transform: scale(1.12); }
.boc-pen.is-ink { border-color: var(--boc-text); transform: scale(1.12); }
.boc-thick {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    cursor: pointer;
    margin-left: 6px;
}
.boc-undo,
.boc-clear {
    font: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--boc-text);
    background: var(--boc-paper-2);
    border: 1px solid var(--boc-line);
    border-radius: 999px;
    padding: 6px 13px;
    cursor: pointer;
    transition: border-color .15s;
}
.boc-undo:hover, .boc-clear:hover { border-color: var(--boc-leaf); color: var(--boc-leaf); }
.boc-tip {
    margin: 12px 0 0;
    font-size: 12.5px;
    line-height: 1.7;
    color: var(--boc-muted);
}

/* ---------- 操作按钮 ---------- */
.boc-btns { display: flex; gap: 12px; }
.boc-btn {
    flex: 1;
    font: inherit;
    font-size: 15px;
    font-weight: 700;
    border-radius: 999px;
    padding: 13px 20px;
    cursor: pointer;
    border: 0;
    transition: transform .15s, box-shadow .15s;
}
.boc-btn-print {
    color: #fff;
    background: linear-gradient(135deg, var(--boc-leaf-2), var(--boc-leaf));
    box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--boc-leaf) 70%, transparent);
}
.boc-btn-print:hover { transform: translateY(-2px); }
.boc-btn-ghost {
    color: var(--boc-text);
    background: var(--boc-paper);
    border: 1px solid var(--boc-line);
}
.boc-btn-ghost:hover { border-color: var(--boc-bark); }

/* ---------- 卡片预览（打印区） ---------- */
.boc-preview-col { position: sticky; top: 84px; }
.boc-preview-cap {
    text-align: center;
    font-size: 12px;
    color: var(--boc-muted);
    margin: 0 0 10px;
}
.boc-sheet {
    background: var(--boc-paper);
    border: 1.5px dashed var(--boc-line);
    border-radius: 6px;
    padding: 22px 24px 18px;
    box-shadow: var(--boc-shadow);
    position: relative;
    overflow: hidden;
}
.boc-sheet::before {
    content: "";
    position: absolute;
    inset: 6px;
    border: 1px solid color-mix(in srgb, var(--boc-leaf) 30%, transparent);
    border-radius: 4px;
    pointer-events: none;
}
.boc-sheet-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--boc-leaf);
    letter-spacing: .2em;
    margin-bottom: 10px;
}
.boc-sheet-no b { font-variant-numeric: tabular-nums; }
.boc-sheet-name {
    text-align: center;
    font-size: 24px;
    font-weight: 900;
    letter-spacing: .06em;
    margin: 0 0 16px;
    color: var(--boc-text);
}
.boc-sheet-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 14px;
    margin-bottom: 14px;
}
.boc-si {
    display: flex;
    gap: 8px;
    align-items: baseline;
    border-bottom: 1px dotted var(--boc-line);
    padding: 5px 2px;
    font-size: 13.5px;
}
.boc-si-wide { grid-column: span 1; }
.boc-si span {
    flex: none;
    font-size: 11px;
    font-weight: 700;
    color: var(--boc-leaf);
    letter-spacing: .1em;
}
.boc-si b { font-weight: 600; word-break: break-all; }

.boc-sheet-feats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 14px;
}
.boc-feat {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    background: var(--boc-paper-2);
    border: 1px solid var(--boc-line);
    border-radius: 10px;
    padding: 8px 10px;
    font-size: 12.5px;
}
.boc-feat-ic { font-size: 16px; }
.boc-feat b { display: block; font-size: 11px; color: var(--boc-leaf); margin-bottom: 2px; }
.boc-feat i { font-style: normal; line-height: 1.5; }

.boc-sheet-draw { position: relative; margin-bottom: 14px; }
.boc-draw-label {
    position: absolute;
    top: 8px;
    left: 12px;
    font-size: 11px;
    font-weight: 700;
    color: var(--boc-leaf);
    letter-spacing: .1em;
    z-index: 1;
}
#boCanvas {
    display: block;
    width: 100%;
    height: auto;
    background:
        radial-gradient(circle, color-mix(in srgb, var(--boc-line) 45%, transparent) 1px, transparent 1.5px) 0 0 / 18px 18px,
        var(--boc-paper-2);
    border: 1px solid var(--boc-line);
    border-radius: 8px;
    cursor: crosshair;
    touch-action: none;
}
.boc-sheet-lines { display: flex; flex-direction: column; gap: 8px; }
.boc-line {
    border: 1px solid var(--boc-line);
    border-radius: 8px;
    padding: 7px 11px;
    font-size: 12.5px;
    min-height: 44px;
}
.boc-line span {
    font-size: 10.5px;
    font-weight: 700;
    color: var(--boc-leaf);
    letter-spacing: .1em;
}
.boc-line p { margin: 2px 0 0; line-height: 1.6; word-break: break-all; }
.boc-sheet-foot {
    margin-top: 14px;
    padding-top: 10px;
    border-top: 1px dashed var(--boc-line);
    font-size: 12px;
    color: var(--boc-muted);
    text-align: center;
}

/* ---------- 底部：口径说明表（neo 体系） ---------- */
.neo-note-table { width: 100%; border-collapse: collapse; }
.neo-note-table th,
.neo-note-table td {
    text-align: left;
    padding: 11px 14px;
    border-bottom: 1px solid color-mix(in srgb, var(--boc-line) 70%, transparent);
    font-size: 13.5px;
    line-height: 1.75;
    vertical-align: top;
}
.neo-note-table th {
    width: 92px;
    font-weight: 800;
    color: var(--boc-leaf);
    white-space: nowrap;
}
.neo-note-table td { color: var(--boc-text); }
.neo-note-table td b { color: var(--boc-leaf); }
.neo-usage { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.neo-usage li { font-size: 14px; line-height: 1.9; color: var(--boc-muted); }
.neo-usage li b { color: var(--boc-text); }

/* ---------- 观察指南 ---------- */
.boc-guide {
    margin-top: 34px;
    background: var(--boc-paper);
    border: 1px solid var(--boc-line);
    border-radius: 16px;
    padding: 24px 28px;
    box-shadow: var(--boc-shadow);
}
.boc-guide h2 { font-size: 18px; font-weight: 800; margin: 0 0 14px; }
.boc-guide ol { margin: 0; padding-left: 22px; display: grid; gap: 10px; }
.boc-guide li { font-size: 14px; line-height: 1.85; color: var(--boc-muted); }
.boc-guide li b { color: var(--boc-text); }
.boc-safe {
    margin: 14px 0 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--boc-leaf);
    background: color-mix(in srgb, var(--boc-leaf) 9%, transparent);
    border: 1px dashed color-mix(in srgb, var(--boc-leaf) 40%, transparent);
    border-radius: 10px;
    padding: 10px 14px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
    .boc-layout { grid-template-columns: 1fr; }
    .boc-preview-col { position: static; }
}
@media (max-width: 560px) {
    .boc-frow { grid-template-columns: 1fr; }
    .boc-sheet-grid { grid-template-columns: 1fr; }
    .boc-sheet-feats { grid-template-columns: 1fr; }
    .boc-btns { flex-direction: column; }
}

/* ---------- 打印：只输出卡片 ---------- */
@media print {
    body * { visibility: hidden; }
    .boc-sheet, .boc-sheet * { visibility: visible; }
    .boc-sheet {
        position: absolute;
        inset: 0 auto auto 0;
        width: 100%;
        border-style: solid;
        box-shadow: none;
    }
    #boCanvas { cursor: default; }
}