/* ==========================================================================
   固定资产折旧 · 页面专属样式
   视觉：一张「折旧台账」——三法净值曲线对比为主视觉，下方逐年台账。
   颜色走 --d3-* 令牌，深色主题自动生效。前缀统一 dep-
   ========================================================================== */

/* 深色下 #16697a 太暗，配深色文字对比不足，提亮一档 */
html[data-theme="dark"] {
    --d3-accent: #4fb3c9;
    --d3-accent-rgb: 79, 179, 201;
}

/* ---------- 1. 表单 ---------- */
.d3-h1 { max-width: 24em; }

.dep-builder { margin-top: 26px; overflow: visible; }

.dep-fields {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px 14px;
    align-items: end;
}

.dep-field { min-width: 0; }

.dep-field > label,
.dep-label {
    display: block;
    font-size: var(--d3-fs-label);
    font-weight: 600;
    color: var(--d3-ink-2);
    margin-bottom: 6px;
}

.dep-field.span-2 { grid-column: span 2; }

/* 折旧方法：三选一胶囊 */
.dep-seg {
    display: flex;
    align-items: center;
    gap: 4px;
    min-height: 43px;
    padding: 3px;
    border: 1px solid var(--d3-line-2);
    border-radius: var(--d3-radius-sm);
    background: var(--d3-paper-2);
}

.dep-seg input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.dep-seg label {
    flex: 1 1 0;
    min-width: 0;
    text-align: center;
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 650;
    line-height: 1.15;
    padding: 8px 6px;
    border-radius: 5px;
    color: var(--d3-ink-3);
    white-space: nowrap;
    transition: background .14s ease, color .14s ease;
}

.dep-seg input:checked + label {
    background: var(--d3-accent);
    color: var(--d3-accent-ink);
}

.dep-seg input:focus-visible + label {
    outline: 2px solid rgba(var(--d3-accent-rgb), .55);
    outline-offset: 2px;
}

.dep-sub {
    margin: 12px 0 0;
    font-size: 12px;
    line-height: 1.7;
    color: var(--d3-ink-3);
}
.dep-sub b { color: var(--d3-ink-2); font-weight: 650; }

.dep-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
    padding-top: 13px;
    border-top: 1px dashed var(--d3-line);
}

.dep-btn {
    appearance: none;
    font: inherit;
    font-size: 13px;
    font-weight: 650;
    line-height: 1.2;
    padding: 9px 16px;
    border-radius: var(--d3-radius-sm);
    border: 1px solid var(--d3-accent);
    background: var(--d3-accent);
    color: var(--d3-accent-ink);
    cursor: pointer;
    white-space: nowrap;
    transition: filter .15s ease, border-color .15s ease, color .15s ease;
}

.dep-btn:hover { filter: brightness(1.06); }

.dep-btn-ghost {
    background: var(--d3-card);
    border-color: var(--d3-line-2);
    color: var(--d3-ink-2);
    font-weight: 600;
    font-size: 12.5px;
    padding: 9px 13px;
}

.dep-btn-ghost:hover {
    filter: none;
    border-color: var(--d3-accent);
    color: var(--d3-accent);
}

.dep-err {
    margin: 10px 0 0;
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--d3-bad);
}
.dep-err[hidden] { display: none; }

/* ---------- 2. 结果区 ---------- */
.dep-stage {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 18px;
    align-items: start;
    margin-top: 20px;
}

.dep-stage > * { min-width: 0; }

/* 曲线卡 */
.dep-chart-card {
    padding: 14px 16px 12px;
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
}

.dep-chart-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.dep-chart-head h2 {
    margin: 0;
    font-size: 13px;
    font-weight: 650;
    color: var(--d3-ink-2);
}

.dep-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin-top: 6px;
}

.dep-leg {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    color: var(--d3-ink-3);
}

.dep-leg i {
    width: 14px;
    height: 3px;
    border-radius: 2px;
    background: var(--d3-line-2);
}

.dep-leg.is-active {
    color: var(--d3-accent);
    font-weight: 650;
}

.dep-leg.is-active i { background: var(--d3-accent); }

.dep-chart {
    display: block;
    width: 100%;
    height: auto;
}

.dep-grid { stroke: var(--d3-line); stroke-width: 1; }

.dep-axis-text {
    font-family: var(--d3-mono);
    font-size: 11px;
    fill: var(--d3-ink-3);
}

.dep-line {
    fill: none;
    stroke: var(--d3-ink-3);
    stroke-width: 1.6;
    opacity: .5;
}

.dep-line.is-active {
    stroke: var(--d3-accent);
    stroke-width: 2.6;
    opacity: 1;
}

.dep-nowline {
    stroke: var(--d3-accent);
    stroke-width: 1.2;
    stroke-dasharray: 4 4;
    opacity: .55;
}

.dep-dot {
    fill: var(--d3-accent);
    stroke: var(--d3-card);
    stroke-width: 2;
}

.dep-now-text {
    font-family: var(--d3-mono);
    font-size: 12px;
    font-weight: 700;
    fill: var(--d3-accent);
}

/* ---------- 3. 双数字 ---------- */
.dep-side { display: grid; gap: 14px; }

.dep-nums {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.dep-num-card {
    padding: 12px 14px 13px;
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
}

.dep-num-card.is-accent {
    border-color: rgba(var(--d3-accent-rgb), .45);
    box-shadow: inset 0 0 0 1px rgba(var(--d3-accent-rgb), .12);
}

.dep-num-kicker {
    display: block;
    font-size: 11.5px;
    color: var(--d3-ink-3);
    margin-bottom: 4px;
}

.dep-num {
    margin: 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: clamp(21px, 2.2vw, 26px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -.03em;
    color: var(--d3-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dep-num.is-accent { color: var(--d3-accent); }

.dep-num-sub {
    margin: 6px 0 0;
    font-size: 11.5px;
    line-height: 1.55;
    color: var(--d3-ink-3);
}

/* ---------- 4. 指标 ---------- */
.dep-kv {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin: 0;
    background: var(--d3-line);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    overflow: hidden;
}

.dep-kv > div { padding: 9px 13px 10px; background: var(--d3-card); min-width: 0; }
.dep-kv > div:last-child:nth-child(odd) { grid-column: 1 / -1; }

.dep-kv dt {
    font-size: 11.5px;
    color: var(--d3-ink-3);
    margin-bottom: 3px;
}

.dep-kv dd {
    margin: 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 13.5px;
    font-weight: 650;
    color: var(--d3-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---------- 5. 提示 ---------- */
.dep-alerts { display: grid; gap: 8px; }
.dep-alerts:empty { display: none; }

.dep-alert {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    padding: 8px 11px;
    font-size: 12.5px;
    line-height: 1.6;
    border-radius: var(--d3-radius-sm);
    border: 1px solid var(--d3-line-2);
    background: var(--d3-paper-2);
    color: var(--d3-ink-2);
}

.dep-alert::before {
    content: "";
    flex: none;
    width: 6px;
    height: 6px;
    margin-top: 6px;
    border-radius: 50%;
    background: var(--d3-ink-3);
}

.dep-alert.is-ok { border-color: rgba(29, 107, 79, .34); background: rgba(29, 107, 79, .06); color: var(--d3-ok); }
.dep-alert.is-ok::before { background: var(--d3-ok); }
.dep-alert.is-warn { border-color: rgba(168, 84, 26, .4); background: rgba(168, 84, 26, .07); color: var(--d3-warn); }
.dep-alert.is-warn::before { background: var(--d3-warn); }
.dep-alert.is-bad { border-color: rgba(176, 42, 36, .38); background: rgba(176, 42, 36, .07); color: var(--d3-bad); }
.dep-alert.is-bad::before { background: var(--d3-bad); }

/* ---------- 6. 报告 ---------- */
.dep-report {
    margin: 0;
    padding: 12px 14px;
    font-family: var(--d3-mono);
    font-size: 12px;
    line-height: 1.8;
    color: var(--d3-ink-2);
    background: var(--d3-paper-2);
    border: 1px dashed var(--d3-line-2);
    border-radius: var(--d3-radius-sm);
    white-space: pre-wrap;
    word-break: break-word;
}

/* ---------- 7. 台账表 ---------- */
.dep-table td:first-child { color: var(--d3-ink-3); }
.dep-table td.num, .dep-table th { font-family: var(--d3-mono); }
.dep-table tr.is-now td {
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .07);
    font-weight: 650;
}
.dep-table tr.is-past td { color: var(--d3-ink-3); }
.dep-td-empty {
    text-align: center;
    color: var(--d3-ink-3);
    font-size: 12.5px;
    padding: 18px 0;
}

/* ---------- 8. 响应式 ---------- */
@media (max-width: 1080px) {
    .dep-stage { grid-template-columns: minmax(0, 1fr); }
    .dep-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
    .dep-builder { margin-top: 18px; }
    .dep-fields { grid-template-columns: minmax(0, 1fr); }
    .dep-field.span-2 { grid-column: auto; }
    .dep-nums { grid-template-columns: minmax(0, 1fr); }
    .dep-kv { grid-template-columns: minmax(0, 1fr); }
    .dep-actions .dep-btn-ghost { flex: 1 1 auto; }

    /* SVG 等比缩小，文字反向放大才看得清 */
    .dep-axis-text { font-size: 19px; }
    .dep-now-text { font-size: 21px; }
}