/* ============================================================
   移动端导航 / 页脚适配（照抄官网首页内联规则，不重写桌面端样式）
   ============================================================ */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        gap: 4px;
        border-bottom: 1px solid var(--border);
        z-index: 999;
    }
    .nav-links.active { display: flex; }
    .mobile-toggle { display: flex; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ============================================================
   数据图表生成器 · 专属样式
   依赖官网 style.css（导航/页脚/通用变量），本文件只写工具区
   ============================================================ */

:root {
    --cm-primary: #1a6eff;
    --cm-radius: 14px;
    --cm-border: #e8ecf4;
    --cm-shadow: 0 4px 24px rgba(26, 110, 255, 0.08);
    --cm-shadow-hover: 0 12px 40px rgba(26, 110, 255, 0.15);
    --cm-text: #1a1a2e;
    --cm-text2: #5a5a7a;
    --cm-text3: #8a8aa0;
    --cm-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 工具头部 ===== */
.tool-header {
    padding: 120px 0 28px;
    background: linear-gradient(180deg, #f0f5ff 0%, #ffffff 100%);
    text-align: center;
}
.tool-header .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--cm-text3);
}
.tool-header .breadcrumb a {
    color: var(--cm-primary);
    text-decoration: none;
    font-weight: 500;
}
.tool-header .breadcrumb a:hover { text-decoration: underline; }
.tool-header h1 {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 900;
    color: var(--cm-text);
    margin-bottom: 12px;
}
.tool-desc {
    font-size: 15px;
    color: var(--cm-text2);
    max-width: 680px;
    margin: 0 auto 20px;
    line-height: 1.8;
}
.tool-badges {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}
.tbadge {
    font-size: 12px;
    font-weight: 600;
    color: var(--cm-primary);
    background: var(--primary-light, #e8f1ff);
    border: 1px solid rgba(26, 110, 255, 0.18);
    padding: 5px 14px;
    border-radius: 100px;
}

/* ===== 本地提示条 ===== */
.local-tip {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: linear-gradient(135deg, #e8f1ff 0%, #f0f5ff 100%);
    border: 1.5px solid rgba(26, 110, 255, 0.15);
    border-radius: var(--cm-radius);
    padding: 18px 22px;
    margin: 8px auto 0;
}
.local-tip-icon {
    width: 40px; height: 40px;
    background: var(--cm-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.local-tip-icon svg { width: 22px; height: 22px; color: #fff; }
.local-tip h4 { font-size: 15px; font-weight: 700; color: var(--cm-primary); margin-bottom: 4px; }
.local-tip p { font-size: 13px; color: var(--cm-text2); line-height: 1.7; margin: 0; }

/* ===== 主体布局 ===== */
.tool-main { padding: 28px 0 64px; }
.tool-layout {
    display: grid;
    grid-template-columns: 400px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
.panel {
    background: #fff;
    border: 1px solid var(--cm-border);
    border-radius: var(--cm-radius);
    box-shadow: var(--cm-shadow);
    padding: 22px;
}
.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.panel-head h2 {
    font-size: 17px;
    font-weight: 800;
    color: var(--cm-text);
    display: flex;
    align-items: center;
    gap: 10px;
}
.step-num {
    width: 26px; height: 26px;
    background: linear-gradient(135deg, #1a6eff 0%, #0d4fc4 100%);
    color: #fff;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 900;
    flex-shrink: 0;
}
.head-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.engine-tag {
    font-size: 11px;
    font-weight: 600;
    color: #16a34a;
    background: #f0fdf4;
    border: 1px solid rgba(22, 163, 74, 0.25);
    padding: 4px 12px;
    border-radius: 100px;
}

/* 小按钮 / 下拉 */
.mini-btn {
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    color: var(--cm-text2);
    background: var(--bg-warm, #f8fafc);
    border: 1.5px solid var(--cm-border);
    border-radius: 8px;
    padding: 6px 12px;
    cursor: pointer;
    transition: var(--cm-transition);
    white-space: nowrap;
}
.mini-btn:hover { border-color: var(--cm-primary); color: var(--cm-primary); }
.mini-btn.wide { flex: 1; padding: 8px 6px; }
select {
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    color: var(--cm-text2);
    background: #fff;
    border: 1.5px solid var(--cm-border);
    border-radius: 8px;
    padding: 6px 10px;
    cursor: pointer;
    max-width: 150px;
}
select:focus { outline: none; border-color: var(--cm-primary); }

/* ===== 粘贴区 ===== */
.paste-box { margin-bottom: 14px; }
.paste-box textarea {
    width: 100%;
    font-family: inherit;
    font-size: 13px;
    color: var(--cm-text);
    border: 1.5px solid var(--cm-border);
    border-radius: 10px;
    padding: 10px 12px;
    resize: vertical;
    min-height: 72px;
    box-sizing: border-box;
}
.paste-box textarea:focus { outline: none; border-color: var(--cm-primary); box-shadow: 0 0 0 3px rgba(26,110,255,0.1); }
.btn-parse {
    margin-top: 8px;
    width: 100%;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--cm-primary);
    background: var(--primary-light, #e8f1ff);
    border: 1.5px solid rgba(26, 110, 255, 0.25);
    border-radius: 8px;
    padding: 8px 0;
    cursor: pointer;
    transition: var(--cm-transition);
}
.btn-parse:hover { background: rgba(26, 110, 255, 0.14); }

/* ===== 数据表格 ===== */
.data-table-wrap {
    border: 1.5px solid var(--cm-border);
    border-radius: 10px;
    overflow: auto;
    max-height: 380px;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 320px;
}
.data-table th, .data-table td {
    border: 1px solid var(--cm-border);
    padding: 7px 10px;
    text-align: center;
    min-width: 68px;
    outline: none;
}
.data-table thead th {
    background: var(--bg-warm, #f8fafc);
    color: var(--cm-text);
    font-weight: 700;
    position: sticky;
    top: 0;
    z-index: 2;
}
.data-table thead th:first-child { color: var(--cm-text3); font-weight: 500; }
.data-table tbody td:first-child {
    background: var(--bg-warm, #f8fafc);
    font-weight: 600;
    color: var(--cm-text);
}
.data-table td[contenteditable]:focus {
    background: var(--primary-light, #e8f1ff);
    box-shadow: inset 0 0 0 2px var(--cm-primary);
}
.data-table th[contenteditable]:focus {
    background: var(--primary-light, #e8f1ff);
    box-shadow: inset 0 0 0 2px var(--cm-primary);
}
.series-head { display: flex; align-items: center; justify-content: center; gap: 6px; }
.series-dot { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.kind-btn {
    font-family: inherit;
    font-size: 10px;
    font-weight: 700;
    border: 1px solid var(--cm-border);
    background: #fff;
    border-radius: 5px;
    padding: 1px 6px;
    cursor: pointer;
    color: var(--cm-text3);
}
.kind-btn:hover { border-color: var(--cm-primary); color: var(--cm-primary); }
.table-btns { display: flex; gap: 8px; margin-top: 10px; }
.panel-note {
    font-size: 12px;
    color: var(--cm-text3);
    line-height: 1.7;
    margin: 12px 0 0;
}
.panel-note code {
    background: var(--bg-warm, #f8fafc);
    border: 1px solid var(--cm-border);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 11px;
}

/* ===== 图表类型 Tabs ===== */
.type-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.type-tab {
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--cm-text2);
    background: var(--bg-warm, #f8fafc);
    border: 1.5px solid var(--cm-border);
    border-radius: 10px;
    padding: 7px 14px;
    cursor: pointer;
    transition: var(--cm-transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.type-tab span { font-size: 12px; }
.type-tab:hover { border-color: var(--cm-primary); color: var(--cm-primary); transform: translateY(-2px); }
.type-tab.active {
    background: linear-gradient(135deg, #1a6eff 0%, #0d4fc4 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(26, 110, 255, 0.35);
}

/* ===== 配置网格 ===== */
.config-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px 16px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px dashed var(--cm-border);
}
.cfg-item label:not(.switch-row) {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--cm-text2);
    margin-bottom: 6px;
}
.cfg-item input[type="text"] {
    width: 100%;
    font-family: inherit;
    font-size: 13px;
    color: var(--cm-text);
    border: 1.5px solid var(--cm-border);
    border-radius: 8px;
    padding: 7px 10px;
    box-sizing: border-box;
}
.cfg-item input[type="text"]:focus { outline: none; border-color: var(--cm-primary); box-shadow: 0 0 0 3px rgba(26,110,255,0.1); }
.cfg-span2 { grid-column: span 2; }
.switch-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--cm-text);
    cursor: pointer;
    padding: 3px 0;
}
.switch-row input[type="checkbox"] {
    appearance: none;
    width: 34px; height: 19px;
    background: #d7deeb;
    border-radius: 100px;
    position: relative;
    cursor: pointer;
    transition: var(--cm-transition);
    flex-shrink: 0;
    margin: 0;
}
.switch-row input[type="checkbox"]::after {
    content: '';
    position: absolute;
    top: 2.5px; left: 3px;
    width: 14px; height: 14px;
    background: #fff;
    border-radius: 50%;
    transition: var(--cm-transition);
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.switch-row input[type="checkbox"]:checked { background: var(--cm-primary); }
.switch-row input[type="checkbox"]:checked::after { left: 17px; }
.switch-row span { font-size: 12.5px; font-weight: 500; }
.cfg-item input[type="range"] {
    width: 100%;
    accent-color: var(--cm-primary);
    cursor: pointer;
}
.cfg-item output { color: var(--cm-primary); font-weight: 700; }
.mt6 { margin-top: 6px; width: 100%; max-width: none; }
.cfg-item .mini-btn.wide { margin-top: 8px; }

/* ===== 主题行 ===== */
.theme-row { display: flex; gap: 8px; flex-wrap: wrap; }
.theme-swatch {
    width: 30px; height: 30px;
    border-radius: 8px;
    cursor: pointer;
    border: 2.5px solid transparent;
    transition: var(--cm-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 3px;
}
.theme-swatch i {
    flex: 1;
    height: 100%;
    border-radius: 3px;
    display: block;
}
.theme-swatch:hover { transform: translateY(-2px); }
.theme-swatch.active { border-color: var(--cm-text); box-shadow: 0 3px 10px rgba(0,0,0,0.18); }

/* ===== 画布区 ===== */
.chart-stage {
    position: relative;
    width: 100%;
    height: 460px;
    border: 1.5px solid var(--cm-border);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
}
#chartCanvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: crosshair;
    touch-action: none;
}
.chart-tooltip {
    position: absolute;
    pointer-events: none;
    background: rgba(26, 26, 46, 0.94);
    color: #fff;
    font-size: 12px;
    line-height: 1.6;
    padding: 8px 12px;
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease;
    max-width: 220px;
    z-index: 5;
    white-space: nowrap;
}
.chart-tooltip.show { opacity: 1; visibility: visible; }
.chart-tooltip .tt-title { font-weight: 700; margin-bottom: 2px; }
.chart-tooltip .tt-row { display: flex; align-items: center; gap: 6px; }
.chart-tooltip .tt-dot { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; }

/* ===== 导出操作 ===== */
.chart-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}
.act-btn {
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--cm-text2);
    background: #fff;
    border: 1.5px solid var(--cm-border);
    border-radius: 10px;
    padding: 10px 18px;
    cursor: pointer;
    transition: var(--cm-transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.act-btn svg { width: 15px; height: 15px; }
.act-btn:hover { border-color: var(--cm-primary); color: var(--cm-primary); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(26,110,255,0.14); }
.act-btn.primary {
    background: linear-gradient(135deg, #1a6eff 0%, #0d4fc4 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(26, 110, 255, 0.35);
}
.act-btn.primary:hover { color: #fff; box-shadow: 0 6px 20px rgba(26, 110, 255, 0.45); }
.act-btn.busy { opacity: 0.55; pointer-events: none; }

/* ===== 帮助区 ===== */
.tool-help { padding: 72px 0; }
.help-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.help-item {
    background: #fff;
    border: 1px solid var(--cm-border);
    border-radius: var(--cm-radius);
    padding: 26px;
    transition: var(--cm-transition);
}
.help-item:hover { box-shadow: var(--cm-shadow-hover); transform: translateY(-4px); }
.help-num {
    width: 34px; height: 34px;
    background: var(--primary-light, #e8f1ff);
    color: var(--cm-primary);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.help-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.help-item p { font-size: 13px; color: var(--cm-text2); line-height: 1.8; margin: 0; }

/* ===== Toast 提示 ===== */
.cm-toast {
    position: fixed;
    left: 50%;
    bottom: 36px;
    transform: translateX(-50%) translateY(20px);
    background: rgba(26, 26, 46, 0.95);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    padding: 10px 22px;
    border-radius: 100px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    max-width: 86vw;
    text-align: center;
}
.cm-toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.cm-toast.err { background: rgba(200, 30, 30, 0.95); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .tool-layout { grid-template-columns: 1fr; }
    .config-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .help-grid { grid-template-columns: 1fr; }
    .chart-stage { height: 400px; }
}
@media (max-width: 768px) {
    .tool-header { padding: 104px 0 20px; }
    .tool-header h1 { font-size: 24px; }
    .tool-desc { font-size: 13.5px; padding: 0 4px; }
    .panel { padding: 16px; }
    .config-grid { grid-template-columns: 1fr; gap: 10px; }
    .cfg-span2 { grid-column: span 1; }
    .chart-stage { height: 320px; }
    .chart-actions { display: grid; grid-template-columns: 1fr 1fr; }
    .act-btn { justify-content: center; padding: 11px 8px; font-size: 12.5px; }
    .type-tabs { gap: 6px; }
    .type-tab { padding: 6px 10px; font-size: 12px; }
    .local-tip { padding: 14px 16px; }
    .table-btns { flex-wrap: wrap; }
    .mini-btn.wide { flex: 1 1 40%; }
    .data-table th, .data-table td { padding: 6px 8px; min-width: 60px; font-size: 12px; }
}
@media (max-width: 480px) {
    .chart-stage { height: 280px; }
    .tool-badges { gap: 6px; }
    .tbadge { font-size: 11px; padding: 4px 10px; }
}