/* ==========================================================================
   等效焦距换算 · 页面专属样式
   设计意图：右侧做成一张「镜头规格图纸」——浅色方格底，外框是全画幅视角，
   内框是当前画幅能看到的范围，四角带裁切标记；下方给出等效焦距与三个方向视角。
   与投影工具那块的深色暗房刻意区分：这里是蓝图，那里是关灯的放映厅。
   仅本页引用。
   ========================================================================== */

.fl-desk {
    display: grid;
    grid-template-columns: minmax(0, .94fr) minmax(0, 1.06fr);
    gap: 20px;
    align-items: start;
    margin-top: 26px;
}

/* ---------- 画幅选择 ---------- */
.fl-body-chips {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
}

.fl-body-chips input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.fl-body-chips span {
    display: block;
    cursor: pointer;
    font-family: var(--d3-mono);
    font-size: 11.5px;
    line-height: 1.35;
    padding: 7px 9px;
    border: 1px solid var(--d3-line-2);
    border-radius: 7px;
    color: var(--d3-ink-2);
    background: var(--d3-paper);
    transition: all .14s ease;
    user-select: none;
}

.fl-body-chips span:hover {
    border-color: var(--d3-accent);
    color: var(--d3-accent);
}

.fl-body-chips input:checked + span {
    background: rgba(var(--d3-accent-rgb), .1);
    border-color: var(--d3-accent);
    color: var(--d3-accent);
    font-weight: 700;
}

.fl-body-chips input:focus-visible + span {
    outline: 2px solid rgba(var(--d3-accent-rgb), .55);
    outline-offset: 2px;
}

/* ---------- 换算方向 ---------- */
.fl-modes {
    display: flex;
    gap: 5px;
    padding: 4px;
    margin-bottom: 14px;
    background: var(--d3-paper-2);
    border: 1px solid var(--d3-line);
    border-radius: 9px;
}

.fl-mode {
    flex: 1 1 0;
    appearance: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    padding: 8px 6px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    color: var(--d3-ink-3);
    transition: all .15s ease;
}

.fl-mode:hover { color: var(--d3-ink); }

.fl-mode.is-on {
    background: var(--d3-card);
    border-color: var(--d3-line-2);
    color: var(--d3-accent);
    box-shadow: 0 1px 3px rgba(0, 0, 0, .06);
}

/* ---------- 常用焦距 ---------- */
.fl-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 11px;
}

.fl-preset {
    appearance: none;
    cursor: pointer;
    font-family: var(--d3-mono);
    font-size: 11.5px;
    font-weight: 650;
    padding: 5px 10px;
    border: 1px dashed var(--d3-line-2);
    border-radius: 6px;
    background: transparent;
    color: var(--d3-ink-3);
    transition: all .14s ease;
}

.fl-preset:hover {
    border-style: solid;
    border-color: var(--d3-accent);
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .06);
}

/* ---------- 裁切系数 ---------- */
.fl-crop {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--d3-radius-sm);
    background: rgba(var(--d3-accent-rgb), .07);
    border-left: 3px solid var(--d3-accent);
}

.fl-crop-value {
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -.03em;
    color: var(--d3-accent);
    line-height: 1;
}

.fl-crop-note {
    margin: 0;
    font-size: 11.5px;
    line-height: 1.6;
    color: var(--d3-ink-2);
}

/* ---------- 按钮 ---------- */
.fl-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px dashed var(--d3-line);
}

.fl-btn {
    appearance: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    font-weight: 650;
    line-height: 1;
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--d3-accent);
    background: var(--d3-accent);
    color: var(--d3-accent-ink);
    transition: filter .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}

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

.fl-btn-ghost {
    background: transparent;
    border-color: var(--d3-line-2);
    color: var(--d3-ink-2);
}

.fl-btn-ghost:hover {
    border-color: var(--d3-accent);
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .06);
}

.fl-btn-sm { padding: 8px 12px; font-size: 12.5px; }

.fl-alerts { display: grid; gap: 8px; margin-top: 14px; }
.fl-alerts:empty { display: none; }

/* ---------- 取景图纸 ---------- */
.fl-view {
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    padding: 14px 16px 16px;
}

.fl-view-top {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
}

.fl-view-kicker {
    font-family: var(--d3-mono);
    font-size: 10px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--d3-ink-3);
}

.fl-view-cap {
    font-family: var(--d3-mono);
    font-size: 11.5px;
    color: var(--d3-accent);
}

#flSvg {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 6px;
    border-radius: var(--d3-radius-sm);
    /* 蓝图方格：淡色细线 */
    background-color: var(--d3-paper);
    background-image:
        linear-gradient(to right, rgba(var(--d3-accent-rgb), .09) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(var(--d3-accent-rgb), .09) 1px, transparent 1px);
    background-size: 16px 16px;
}

:root[data-theme="dark"] #flSvg {
    background-image:
        linear-gradient(to right, rgba(var(--d3-accent-rgb), .22) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(var(--d3-accent-rgb), .22) 1px, transparent 1px);
}

/* 图元 */
.fl-svg-outer {
    fill: rgba(var(--d3-accent-rgb), .05);
    stroke: var(--d3-accent);
    stroke-width: 1.6;
}

.fl-svg-inner {
    fill: rgba(var(--d3-accent-rgb), .16);
    stroke: var(--d3-accent);
    stroke-width: 1.8;
    stroke-dasharray: 6 4;
}

.fl-svg-crop {
    stroke: var(--d3-accent);
    stroke-width: 2;
    fill: none;
}

.fl-svg-center {
    stroke: var(--d3-ink-3);
    stroke-width: 1;
    opacity: .45;
}

.fl-svg-label {
    fill: var(--d3-ink-2);
    font-family: var(--d3-mono);
    font-size: 11px;
}

.fl-svg-label.is-soft { fill: var(--d3-ink-3); font-size: 10px; }

.fl-view-foot {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 14px;
    align-items: end;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--d3-line);
}

.fl-big-label {
    font-family: var(--d3-mono);
    font-size: 10px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--d3-ink-3);
}

.fl-big {
    display: flex;
    align-items: baseline;
    gap: 5px;
    margin: 3px 0 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: clamp(34px, 4.4vw, 46px);
    font-weight: 700;
    line-height: 1.02;
    letter-spacing: -.045em;
    color: var(--d3-accent);
}

.fl-big small {
    font-family: var(--d3-sans);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0;
    color: var(--d3-ink-3);
}

.fl-big-note {
    display: block;
    margin-top: 5px;
    font-size: 11.5px;
    line-height: 1.6;
    color: var(--d3-ink-3);
}

.fl-angles {
    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-sm);
    overflow: hidden;
}

.fl-angles > div {
    background: var(--d3-paper);
    padding: 8px 10px;
}

.fl-angles dt {
    font-size: 10.5px;
    color: var(--d3-ink-3);
    margin-bottom: 2px;
}

.fl-angles dd {
    margin: 0;
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
    font-size: 13px;
    font-weight: 650;
    color: var(--d3-ink);
}

/* ---------- 对照表 / 批量 ---------- */
.fl-table-wrap,
.fl-batch-wrap {
    margin-top: 18px;
    background: var(--d3-card);
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius);
    padding: 15px 18px 17px;
}

.fl-sec-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px 14px;
    padding-bottom: 11px;
    margin-bottom: 13px;
    border-bottom: 1px solid var(--d3-line);
}

.fl-sec-head h2 { font-size: var(--d3-fs-h3); }

.fl-sec-head span {
    font-size: 12px;
    color: var(--d3-ink-3);
    margin-left: auto;
}

.fl-table { min-width: 660px; }

.fl-table td:not(:first-child),
.fl-batch-table td:not(:first-child) {
    font-family: var(--d3-mono);
    font-variant-numeric: tabular-nums;
}

.fl-table tbody tr.is-cur td {
    background: rgba(var(--d3-accent-rgb), .09);
}

.fl-tag {
    display: inline-block;
    margin-left: 7px;
    padding: 1px 6px;
    border-radius: 999px;
    font-family: var(--d3-sans);
    font-size: 10px;
    font-weight: 650;
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .14);
    vertical-align: 1px;
}

.fl-batch {
    display: grid;
    grid-template-columns: minmax(240px, 330px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.fl-batch textarea {
    width: 100%;
    font-family: var(--d3-mono);
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--d3-ink);
    background: var(--d3-paper);
    border: 1px solid var(--d3-line-2);
    border-radius: var(--d3-radius-sm);
    padding: 10px 12px;
    resize: vertical;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.fl-batch textarea:focus {
    border-color: var(--d3-accent);
    box-shadow: 0 0 0 3px rgba(var(--d3-accent-rgb), .13);
}

.fl-batch-act {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 9px;
}

.fl-batch-act .d3-hint { margin: 0; }

.fl-batch-msg {
    margin: 8px 0 0;
    font-size: 11.5px;
    line-height: 1.6;
    color: var(--d3-ink-3);
}

.fl-batch-msg.is-bad { color: var(--d3-bad); }

.fl-batch-table { min-width: 460px; }

.fl-empty {
    text-align: center !important;
    color: var(--d3-ink-3);
    font-family: var(--d3-sans) !important;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .fl-desk { grid-template-columns: minmax(0, 1fr); }
    .fl-batch { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 700px) {
    .fl-body-chips { grid-template-columns: minmax(0, 1fr); }
    .fl-view-foot { grid-template-columns: minmax(0, 1fr); }
    .fl-modes { flex-direction: column; }
    .fl-table-wrap, .fl-batch-wrap { padding: 13px 14px 15px; }
}

@media print {
    .d3-top, .d3-foot, .fl-actions, .fl-batch-wrap, .d3-related { display: none !important; }
    .fl-desk { grid-template-columns: 1fr; }
    body { background: #fff; }
}