:root {
    --map-bg: #ffffff;
    --station-stroke: #00263b;
    --not-open-color: #bdcbd2;
    --panel-header-bg: #00263b;
    --panel-header-text: #ffffff;
    --close-btn-color: rgba(255, 255, 255, 0.6);
    --capsule-bg: #ffffff;
    --capsule-text: #333333;
    --stops-tag-bg: #f0f2f5;
    --control-bg: #ffffff;
    --ctrl-btn-bg: #f0f2f5;
    --ctrl-icon: #333333;
    --ctrl-hover: #e1e4e8;
    --divider: #e0e0e0;
    --list-hover: #f0f2f5;
    --sta-stroke-width-cn: 2px;
    --sta-stroke-width-en: 1.75px;

    /* 无障碍令牌（对比度为 WCAG 相对亮度公式自算值，冒号后为所对的底色） */
    --focus-ring: #1a73e8;        /* 焦点环：#fff 4.51 / #f8f9fa 4.27 / #e9ecef 3.80 / 面板头 #00263b 3.48 */
    --not-open-text: #5d7b89;     /* 未开通站名与「暂未开通」文字：#fff 4.51（同色相下满足 4.5:1 的最浅值） */
    --placeholder-text: #5b7785;  /* 输入框占位文字：#f8f9fa 4.50 / #fff 4.75 */
    --input-border: #7895a3;      /* 输入框边框：#f8f9fa 3.01 / #fff 3.17 */
    --slider-track: #7895a3;      /* 缩放滑块轨道：#fff 3.17 */
    --info-text: #006098;         /* 信息色作文字：#fff 6.72 / --info-bg #e8f0fe 5.86 */
    --success-text: #298341;      /* 成功色作文字：#fff 4.75 / --success-bg #e6ffed 4.50 */
    --warning-text: #9f6607;      /* 警告色作文字：#fff 4.80 / --warning-bg≈#fff9e6 4.56 */
    --danger-text: #d92617;       /* 危险色作文字：#fff 4.95 / --danger-bg #fff1f1 4.51 */
}

[data-theme="dark"] {
    --map-bg: #1a1a1a;
    --station-stroke: #bdcbd2;
    --not-open-color: #4e4e4e;
    --panel-header-bg: #373838;
    --panel-header-text: #e5e8ea;
    --close-btn-color: #78848b;
    --capsule-bg: #1f2020;
    --capsule-text: #78848b;
    --stops-tag-bg: #78848b;
    --control-bg: #1f2020;
    --ctrl-btn-bg: #373838;
    --ctrl-icon: #78848b;
    --ctrl-hover: #4f4f4f;
    --divider: #333333;
    --list-hover: #373838;

    --focus-ring: #8ab4f8;        /* #1a1a1a 8.26 / #1f2020 7.75 / #373838 5.58 */
    --not-open-text: #878787;     /* #1a1a1a 4.84 / #1f2020 4.55（满足 4.5:1 的最深灰） */
    --placeholder-text: #bdcbd2;  /* 沿用原值：#1a1a1a 10.5 */
    --input-border: #6a6a6a;      /* #1a1a1a 3.22 / #1f2020 3.02 */
    --slider-track: #6a6a6a;      /* --control-bg #1f2020 3.02 */
    --info-text: #0095ec;         /* #1f2020 5.06 / --info-bg #1a2a3a 4.53 */
    --success-text: #38b559;      /* #1f2020 6.16 / --success-bg #1b3e20 4.51 */
    --warning-text: #f59e0b;      /* 沿用原值：#1f2020 7.61 / --warning-bg≈#2d291a 6.77 */
    --danger-text: #ec5043;       /* #1f2020 4.51 / --danger-bg #3b0f0f 4.59 */
}

/* 
   =========================================
   2. 页面基础重置 (针对地图交互优化)
   ========================================= 
*/
html,
body {
    font-family: "Arimo", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol" !important;
    font-weight: 500;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden !important;
    overscroll-behavior: none;
    -webkit-touch-callout: none !important;
    -webkit-user-select: none !important;
    user-select: none !important;
    -webkit-tap-highlight-color: transparent !important;
    height: 100vh;
    /* Fallback for older browsers */
    height: 100dvh;
    /* Proper height for mobile browsers */
    margin: 0;
    padding: 0;
}

/* 
   =========================================
   3. 地图容器系统
   ========================================= 
*/
#map-container {
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0;
    border: none;
    overflow: hidden;
    user-select: none;
    cursor: grab;
    touch-action: none;
    transform-origin: 0 0;
    background-color: var(--map-bg) !important;
}

#map-container.active {
    cursor: grabbing;
}

#map-content {
    position: relative;
    width: 1850px;
    height: 1300px;
    transform-origin: 0 0;
    background-color: var(--map-bg) !important;
}

/* 从邻城切换过来时，在视口对齐前先隐藏地图（见 core/city-neighbors.js） */
html.nb-arrive #map-content {
    opacity: 0;
}

html.nb-fadein #map-content {
    transition: opacity .38s ease, transform .75s cubic-bezier(.22, .61, .36, 1) !important;
}

/* 交互期间提升为合成层，见 core/script.js 的 markMapMoving() */
#map-content.is-moving {
    will-change: transform;
}

.animate-zoom {
    transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

#map-container::-webkit-scrollbar {
    display: none;
}

/* 
   =========================================
   4. 图层管理 (Z-Index)
   ========================================= 
*/
#lines-layer,
#stations-layer,
#labels-layer,
#not-open-layer,
#scattered-layer,
#highlight-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
}

#scattered-layer {
    pointer-events: none;
    z-index: 5;
}

#lines-layer {
    z-index: 10;
    pointer-events: none;
}

#not-open-layer {
    z-index: 12;
    pointer-events: none;
}

#highlight-layer {
    z-index: 13;
    pointer-events: none;
}

#stations-layer {
    z-index: 20;
    pointer-events: none;
}

#labels-layer {
    z-index: 30;
    pointer-events: none;
}

/* 
   =========================================
   5. 线路 SVG 渲染样式
   ========================================= 
*/
.line-visual-overlay {
    fill: none;
    pointer-events: none;
    transition: all 0.2s;
}

.line-visual-outer,
.line-visual-inner {
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: all 0.2s;
    pointer-events: none;
}

.line-visual-group.active .line-visual-outer {
    filter: drop-shadow(0 0 5px rgba(0, 0, 0, 0.5));
}

[data-theme="dark"] .line-visual-group.active .line-visual-outer {
    filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0.8)) !important;
}

.line-visual-group.active .line-visual-inner {
    stroke-width: 9px !important;
}

.line-interaction {
    fill: none;
    stroke: transparent;
    stroke-width: 15px;
    cursor: pointer;
    pointer-events: stroke;
}

#line-tooltip {
    position: fixed;
    z-index: 9999;
    display: none;
    pointer-events: none;
    transform: translate(-50%, -100%);
    margin-top: -15px;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.35));
    transition: opacity 0.2s;
    background: transparent;
    padding: 0;
    border-radius: 0;
    --data1: transparent;
    --data2: #00263b;
}

[data-theme="dark"] #line-tooltip {
    --data2: #ffffff;
}

#line-tooltip img,
#line-tooltip .svg-icon-placeholder,
#line-tooltip .svg-icon-inlined,
#line-tooltip svg {
    height: 34px;
    width: auto;
    display: block;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0;
}

/* 
   =========================================
   6. 车站与标签样式
   ========================================= 
*/
.station {
    position: absolute;
    transform: translate(-50%, -50%);
    pointer-events: auto;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
}

.station svg {
    width: 100%;
    height: 100%;
    display: block;
}

.station.active {
    transform: translate(-50%, -50%) scale(1.5);
    z-index: 100 !important;
    filter: drop-shadow(0 0 5px rgba(0, 0, 0, 0.5));
}

.dot,
.rdot,
.tsfo {
    width: 10px;
    height: 10px;
    z-index: 15;
}

.tsf {
    width: 17.5px;
    height: 17.5px;
    z-index: 20;
}

.no {
    width: 10px;
    height: 10px;
    z-index: 5;
}

.diy {
    position: absolute;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.label-group {
    position: absolute;
    pointer-events: auto;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.2s;
}

.stacn {
    font-size: 11.5px;
    color: var(--text-main) !important;
    display: block;
    line-height: 13.8px;
    font-weight: 500;
    paint-order: stroke fill;
}

.staen {
    font-size: 6.65px;
    color: var(--text-main) !important;
    display: block;
    margin-top: 0;
    line-height: 6.35px;
    white-space: nowrap;
    font-family: 'Arimo', 'Arial', sans-serif;
    font-weight: 500;
    paint-order: stroke fill;
}

.label-group.type-no .stacn,
.label-group.type-no .staen {
    color: var(--not-open-text) !important;
}

.label-group.active {
    z-index: 35;
}

.label-group.active .stacn {
    color: #D0021B !important;
    transform: scale(1.1);
    transform-origin: inherit;
    font-size: 15px;
    line-height: 15px;
    font-weight: 700;
    -webkit-text-stroke: var(--sta-stroke-width-cn) var(--map-bg);
}

.label-group.active .staen {
    color: #D0021B !important;
    font-size: 9px;
    line-height: 8px;
    font-weight: 700;
    -webkit-text-stroke: var(--sta-stroke-width-en) var(--map-bg);
}

.scattered-item {
    position: absolute;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* 
   =========================================
   7. 缩放控件 (Modern Zoom Control)
   ========================================= 
*/
#modern-zoom-control {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 800;
    background-color: var(--control-bg) !important;
    padding: 8px 6px;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    user-select: none;
    touch-action: none;
}

#modern-zoom-control button {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background-color: var(--ctrl-btn-bg) !important;
    color: var(--ctrl-icon) !important;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

#modern-zoom-control button:hover {
    background-color: var(--ctrl-hover) !important;
    color: var(--capsule-text) !important;
}

#modern-zoom-control button:active {
    transform: scale(0.95);
}

.mz-slider-track {
    height: 100px;
    width: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

#mz-slider {
    width: 100px;
    height: 32px;
    transform: rotate(-90deg);
    transform-origin: center;
    margin: 0;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
}

#mz-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    background: var(--slider-track);
    border-radius: 2px;
}

[data-theme="dark"] #mz-slider::-webkit-slider-runnable-track {
    background: var(--slider-track) !important;
}

#mz-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: #00263b;
    margin-top: -6px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: transform 0.1s;
}

[data-theme="dark"] #mz-slider::-webkit-slider-thumb {
    background: #78848b !important;
}

#mz-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

#modern-zoom-control div[style*="height: 1px"] {
    background-color: var(--divider) !important;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* 
   =========================================
   8. 侧边详情面板 (Info Panel)
   ========================================= 
*/
#info-panel {
    width: 360px;
    padding: 0;
    background: var(--card-bg) !important;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    font-weight: 400;
    overscroll-behavior: contain;
    touch-action: pan-y;
    display: none;
}

#info-panel.panel-adjust-anim {
    transition: top 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.panel-header {
    position: relative;
    background-color: var(--panel-header-bg) !important;
    color: var(--panel-header-text) !important;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 52px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    --data1: transparent;
    --data2: #ffffff;
}

.header-name-group {
    flex: 0 1 auto;
    min-width: 0;
    overflow: hidden;
}

.panel-cn-name {
    font-size: 18.5px;
    font-weight: 700;
    margin-bottom: 2px;
    letter-spacing: 1px;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: inherit !important;
}

.panel-en-name {
    font-family: 'Arimo', 'Arial', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.7) !important;
    margin-bottom: 0;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.panel-badges {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 10px;
    /* 为关闭按钮（32px宽 + right:10px）留出足够空间，避免重叠 */
    margin-right: 0;
}

.line-badge {
    height: 32px;
    width: auto;
    display: inline-block;
    vertical-align: middle;
    border-radius: 3px;
}

.text-badge {
    font-size: 12px;
    background: rgba(255, 255, 255, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
}

.panel-close-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--close-btn-color) !important;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
}

.panel-close-btn:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

/* 抽屉把手：默认隐藏，仅在移动端媒体查询内显示 */
.sheet-grabber {
    display: none;
}

/* 顶部颜色填充层：默认隐藏 */
.mobile-top-bar-backdrop {
    display: none;
}

.panel-body {
    background-color: var(--card-bg) !important;
    color: var(--text-main) !important;
    padding: 10px 20px 15px 20px;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    scrollbar-width: thin;
    scrollbar-color: #bdcbd2 #f0f2f5;
    --data1: transparent;
    --data2: #00263b;
}

[data-theme="dark"] .panel-body {
    --data2: #ffffff;
}

.panel-body::-webkit-scrollbar {
    width: 6px;
}

.panel-body::-webkit-scrollbar-track {
    background: #f0f2f5;
}

.panel-body::-webkit-scrollbar-thumb {
    background-color: #bdcbd2;
    border-radius: 3px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 13px;
    margin-bottom: 10px;
    line-height: 1.5;
    --data1: transparent;
    --data2: #00263b;
}

[data-theme="dark"] .info-row {
    --data2: #ffffff;
}

.info-label {
    color: var(--text-light) !important;
    flex-shrink: 0;
    margin-right: 15px;
}

.info-value {
    color: var(--text-main) !important;
    text-align: right;
    font-weight: bold;
    word-break: break-word;
}

[data-theme="dark"].line-badge {
    background-color: transparent;
    padding: 0;
}

.reserved-box {
    background: var(--ctrl-btn-bg) !important;
    color: var(--text-light) !important;
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    margin: 5px 0;
    text-align: center;
    border: 1px dashed var(--divider) !important;
}

/* ==========================================================================
   StaCard 高德地图切片微缩视窗 (AMap Minimap)
   ========================================================================== */
.stacard-minimap-box {
    width: 100%;
    margin: 8px 0 14px 0;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-card, #f8f9fa);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), inset 0 0 0 1px var(--divider, rgba(0, 0, 0, 0.08));
    user-select: none;
}

.stacard-minimap-viewport {
    width: 100%;
    height: 156px;
    position: relative;
    overflow: hidden;
    cursor: default;
    background-color: #f2efe9;
}

.stacard-tiles-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    transition: filter 0.3s ease;
}

.stacard-tile-img {
    position: absolute;
    width: 256px;
    height: 256px;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
    image-rendering: auto;
    pointer-events: none;
}

/* 中心定位 Pin 标记 */
.stacard-pin-marker {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
    z-index: 10;
}

.stacard-pin-dot {
    width: 12px;
    height: 12px;
    background-color: var(--marker-color, #007aff);
    border: 2px solid #ffffff;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
    z-index: 2;
}

.stacard-pin-pulse {
    position: absolute;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--marker-color, #007aff);
    opacity: 0.35;
    animation: stacard-pulse 2s infinite cubic-bezier(0.25, 0.8, 0.25, 1);
    top: -8px;
}

@keyframes stacard-pulse {
    0% { transform: scale(0.6); opacity: 0.6; }
    70% { transform: scale(1.6); opacity: 0; }
    100% { transform: scale(1.6); opacity: 0; }
}

.stacard-pin-label {
    margin-top: 4px;
    font-size: 11px;
    font-weight: bold;
    color: #1a1a1a;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 2px 6px;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.18);
    border: 1px solid rgba(0, 0, 0, 0.08);
    white-space: nowrap;
}

/* 控制按钮组 (缩放按钮) */
.stacard-controls {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 12;
}

.stacard-ctrl-btn {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333333;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    text-decoration: none;
}

.stacard-ctrl-btn:hover {
    background: #ffffff;
    color: #000000;
    transform: scale(1.05);
}

.stacard-ctrl-btn:active {
    transform: scale(0.95);
}

/* 加载中与空状态 */
.stacard-loading-tip,
.stacard-empty-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 156px;
    color: var(--text-light, #888);
    font-size: 11px;
    background: var(--ctrl-btn-bg, #f5f5f5);
}

.stacard-spin {
    animation: stacard-spin-anim 1s linear infinite;
}

@keyframes stacard-spin-anim {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.panel-footer {
    padding: 8px 15px;
    background-color: var(--bg-color) !important;
    text-align: center;
    font-size: 11px;
    border-top: 1px solid var(--divider) !important;
    flex-shrink: 0;
}

.special-br {
    display: block;
    height: 0;
    content: "";
}


/* 
   =========================================
   10. 图例与搜索 (Legend & Search)
   ========================================= 
*/
#legend-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: none;
    backdrop-filter: blur(3px);
    animation: overlayFadeIn 0.2s ease-out;
    pointer-events: auto;
}

@keyframes overlayFadeIn {
    from {
        background: rgba(0, 0, 0, 0);
        backdrop-filter: blur(0);
    }

    to {
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(3px);
    }
}

.legend-modal {
    position: absolute;
    background: var(--card-bg) !important;
    color: var(--text-main) !important;
    width: 400px;
    max-width: 85%;
    max-height: min(80vh, calc(100dvh - 30px));
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform-origin: 0 0;
    animation: expandMenu 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    touch-action: pan-y;
    pointer-events: auto;
}

@keyframes expandMenu {
    from {
        transform: scale(0);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.legend-close-btn {
    position: absolute;
    top: 15px;
    left: 20px;
    background: var(--ctrl-btn-bg) !important;
    border: none;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 17px 6px 15px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light) !important;
    cursor: pointer;
    line-height: 1;
    transition: all 0.2s;
    z-index: 20;
}

.legend-close-btn:hover {
    background-color: var(--ctrl-hover) !important;
    color: var(--primary-color) !important;
}

.legend-close-btn:active {
    background-color: #d0d3d6;
}

#legend-content {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0 16px 20px 16px;
    touch-action: pan-y;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.legend-section-title {
    margin-bottom: 12px;
    text-align: left;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--divider) !important;
}

.legend-section-heading {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.legend-section-title-cn {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
}

.legend-section-title-en {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 0.3px;
}

.legend-section-desc {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

.legend-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px 8px;
    margin-bottom: 20px;
}

.legend-item {
    cursor: pointer;
    border-radius: 8px;
    transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-direction: row;
    gap: 8px;
    padding: 7px 10px;
    min-height: 38px;
    background: var(--card-bg) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--divider) !important;
    box-sizing: border-box;
    user-select: none;
}

.legend-item:hover {
    background-color: var(--list-hover) !important;
    border-color: var(--primary-color, #0c598b) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.legend-item:active {
    transform: translateY(1px);
}

.legend-color-blocks {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    flex-shrink: 0;
}

.legend-color-block {
    width: 13px;
    height: 13px;
    border-radius: 3px;
    flex-shrink: 0;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    display: inline-block;
}

.legend-item-name {
    font-size: 12.5px;
    font-weight: 500;
    color: var(--text-main);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-container {
    position: sticky;
    top: 0;
    background: var(--card-bg) !important;
    z-index: 10;
    border-bottom: none;
    padding-bottom: 10px;
    margin-bottom: 10px;
    padding-top: 55px;
}

.search-input-wrapper {
    position: relative;
    width: 100%;
}

#station-search-input {
    width: 100%;
    padding: 10px 32px 10px 12px;
    font-size: 14px;
    border: 1px solid var(--input-border) !important;
    border-radius: 6px;
    color: var(--text-main) !important;
    background-color: var(--bg-color) !important;
    transition: border-color 0.2s;
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 基础规则的 border / background 带 !important，聚焦态必须同样带上才不会被压掉 */
#station-search-input:focus {
    border-color: var(--primary-color) !important;
    background-color: var(--card-bg) !important;
}

#station-search-input::placeholder {
    color: var(--placeholder-text);
    opacity: 1;
}

#search-clear-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    display: none;
    transition: color 0.2s;
    padding: 4px;
    align-items: center;
    justify-content: center;
}

#search-clear-btn:hover {
    color: var(--text-main);
}

#search-results-list {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--divider) !important;
    display: none;
    touch-action: pan-y;
}

.search-item {
    display: flex;
    align-items: center;
    padding: 10px 8px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.1s;
    color: var(--text-main) !important;
    font-size: 14px;
    line-height: 13.8px;
    --data1: transparent;
    --data2: #00263b;
}

[data-theme="dark"] .search-item {
    --data2: #ffffff;
}

.search-item:hover {
    background-color: var(--list-hover) !important;
}

.search-item.pending {
    color: var(--not-open-text) !important;
}

/* 键盘上下键高亮的候选项（焦点仍在输入框，由 aria-activedescendant 指向） */
.search-item.kbd-active {
    background-color: var(--list-hover) !important;
    outline: 2px solid var(--focus-ring);
    outline-offset: -2px;
}

.search-line-icon {
    height: 25px;
    width: auto;
    margin-right: 2px;
    display: block;
}

.search-item-text {
    margin-left: 4px;
    font-weight: 500;
}

/* 
   =========================================
   11. 右键菜单 (Custom Context Menu)
   ========================================= 
*/
#custom-context-menu,
.map-context-menu {
    position: fixed;
    z-index: 10000;
    background: var(--card-bg, #ffffff);
    color: var(--text-main, #00263b);
    border-radius: var(--radius-md, 8px);
    box-shadow: var(--shadow-xl, 0 18px 46px rgba(0, 0, 0, 0.16));
    padding: 6px;
    min-width: 180px;
    max-width: calc(100vw - 20px);
    max-height: calc(100vh - 20px);
    overflow-y: auto;
    display: none;
    flex-direction: column;
    gap: 2px;
    border: 1px solid var(--border-color, #dee2e6);
    animation: menuFadeIn 0.15s ease-out;
    font-family: var(--font-sans, system-ui, -apple-system, sans-serif);
    user-select: none;
}

@keyframes menuFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.ctx-header {
    padding: 8px 12px 6px 12px;
    font-size: var(--text-base, 14px);
    font-weight: 700;
    color: var(--text-main) !important;
    border-bottom: 1px solid var(--border-color, #dee2e6) !important;
    margin-bottom: 4px;
    text-align: center;
    letter-spacing: 0.3px;
}

.ctx-menu-btn {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    padding: 9px 12px;
    border: none;
    background: transparent;
    color: var(--text-main) !important;
    font-size: var(--text-base, 14px);
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-xs, 4px);
    text-decoration: none;
    transition: background var(--transition-base, 0.15s ease), color var(--transition-base, 0.15s ease);
    width: 100%;
    box-sizing: border-box;
    text-align: left;
}

.ctx-menu-btn:hover {
    background-color: var(--btn-info-hover, rgba(0, 0, 0, 0.05)) !important;
    color: var(--text-main) !important;
}

.ctx-menu-btn:active {
    background-color: var(--btn-info-bg, rgba(0, 0, 0, 0.1));
}

.ctx-menu-btn svg,
.ctx-menu-btn cgo-icon,
.ctx-menu-btn .btn-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    fill: currentColor;
    color: currentColor;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.ctx-btn-primary {
    color: var(--primary-color) !important;
    font-weight: 600;
}

.ctx-btn-primary svg,
.ctx-btn-primary cgo-icon {
    color: var(--primary-color) !important;
    fill: var(--primary-color) !important;
}

.ctx-btn-danger {
    color: var(--danger-text, #d92617) !important;
    font-weight: 600;
}

.ctx-btn-danger svg,
.ctx-btn-danger cgo-icon {
    color: var(--danger-text, #d92617) !important;
    fill: var(--danger-text, #d92617) !important;
}

.ctx-divider {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-light, #666666) !important;
    background: transparent !important;
    padding: 6px 12px 2px 12px;
    margin-top: 4px;
    border: none !important;
    letter-spacing: 0.3px;
}

.ctx-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-color, #dee2e6);
}


/* 
   =========================================
   13. 同名车站选择器 (Station Selector)
   ========================================= 
*/
#station-selector {
    position: absolute;
    z-index: 5000;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    padding: 4px;
    display: flex;
    gap: 6px;
    flex-wrap: nowrap;
    transform: translate(-50%, 0);
    animation: popIn 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid var(--divider);
    pointer-events: auto !important;
    touch-action: none;
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: translate(-50%, 0) scale(0.8);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 10px) scale(1);
    }
}

.selector-item {
    min-width: 28px;
    height: 28px;
    padding: 0 4px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    transition: transform 0.1s, background-color 0.1s;
    background-color: var(--bg-color);
}

.selector-item:hover {
    transform: scale(1.1);
    background-color: var(--list-hover);
}

.selector-item .svg-icon-placeholder,
.selector-item .svg-icon-inlined,
.selector-item svg {
    width: auto;
    height: 22px;
    display: block;
    --data1: transparent;
    --data2: var(--text-main);
    flex-shrink: 0;
}

.selector-text-badge {
    font-size: 11px;
    padding: 0 6px;
    height: 24px;
    line-height: 24px;
    background: rgba(128, 128, 128, 0.2);
    border-radius: 4px;
    white-space: nowrap;
    color: var(--text-main);
}

#selector-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 6000;
    pointer-events: none;
}

#station-selector {
    pointer-events: auto !important;
}

/* 
   =========================================
   14. 侧边栏整体布局优化 (Sidebar Flex Layout)
   ========================================= 
   为解决“按钮区没有固定在最底端”的问题，需要让整个侧边栏容器以及
   内部的 history section, info-panel 全部使用 flex 布局，
   并将 panel-body 设置为 flex:1; overflow-y:auto
*/

.legend-pinned #legend-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden !important;
    /* 覆盖原本的 overflow-y: auto */
    padding-bottom: 0 !important;
}

/* 搜索和图例部分保持 flex-shrink: 0, 防止被压缩 */
.legend-pinned #section-search,
.legend-pinned #section-legend-tree {
    flex-shrink: 0;
}

/* 动态生成的内容容器 (历史记录/当前站点) 占据剩余空间 */
#sidebar-dynamic-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* 每一个站点区块 */
.station-history-section {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    /* 默认不伸展，只有 active 的才伸展 */
    overflow: hidden;
    transition: flex 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 激活(未折叠)的站点区块撑满剩余空间 */
.station-history-section:not(.collapsed) {
    flex: 1;
    min-height: 0;
}

.station-history-section .section-header {
    flex-shrink: 0;
}

.station-history-section .section-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
    padding: 0;
    /* 移除可能存在的 padding，交给内部 panel 处理 */
}

/* 
   =========================================
   15. 详情面板 Flex 改造 (Info Panel Flex)
   ========================================= 
*/

#info-panel {
    display: flex;
    flex-direction: column;
    width: 360px;
    padding: 0;
    /* 移除内边距，统一管理 */
    background: var(--card-bg) !important;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    /* 任何模式下都隐藏溢出 */
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    font-weight: 400;
    /* 确保悬浮模式也有最大高度，防止撑出屏幕 */
    max-height: 80vh;
    transition: min-height 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        max-height 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        border-radius 0.3s;
}

/* 当 info-panel 被放入侧边栏 (Pinned Mode) 时的特定样式 - 仅限桌面端 */
@media (min-width: 641px) {
    #info-panel.docked {
        position: static !important;
        width: 100% !important;
        height: 100% !important;
        max-height: none !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        background: transparent !important;
        /* 可能会继承父级背景 */
    }
}

.panel-header {
    flex-shrink: 0;
    /* 头部不被压缩 */
    position: relative;
    background-color: var(--panel-header-bg) !important;
    color: var(--panel-header-text) !important;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 50px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    --data1: transparent;
    --data2: #ffffff;
}

.panel-tabs-nav {
    flex-shrink: 0;
    /* tab 栏也不被压缩 */
}

.panel-body {
    flex: 1;
    /* 占据所有剩余空间 */
    overflow-y: auto;
    /* 仅此区域滚动 */
    min-height: 0;
    /* 关键: 允许 flex item 缩小到比内容更小 */
    padding: 10px 20px 15px 20px;
    /* 恢复 padding: Top 0, others kept */
    background-color: var(--card-bg) !important;
    color: var(--text-main) !important;
    scrollbar-width: thin;
    scrollbar-color: #bdcbd2 #f0f2f5;
}

.panel-footer {
    flex-shrink: 0;
    /* 底部按钮区固定 */
    padding: 15px;
    background-color: var(--bg-color) !important;
    text-align: center;
    font-size: 11px;
    border-top: 1px solid var(--divider) !important;
    z-index: 10;
}

/* ============================================================
   移动端三档抽屉面板系统 (max-width: 640px)
   三档：收起(panel-sheet-collapsed) / 半屏(mobile-split-active默认) / 全屏(mobile-panel-expanded)
   ============================================================ */
@media (max-width: 640px) {

    /* ── 全局底层基座：面板打开时的布局属性（不含 display，由 JS 内联样式控制显示/隐藏） ── */
    #info-panel {
        position: fixed !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        height: auto !important;
        min-height: 0 !important;
        max-height: none !important;
        border-radius: 20px 20px 0 0 !important;
        box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.15) !important;
        overflow: visible !important;
        flex-direction: column !important;
        z-index: 2000 !important;
        touch-action: none;
        /* 档位切换动画 */
        transition: top 0.38s cubic-bezier(0.22, 1, 0.36, 1) !important;
    }

    /* ── 档位 1：半屏（默认档，mobile-split-active） ── */
    body.mobile-split-active #info-panel {
        display: flex !important;
        top: 40dvh !important;
    }

    /* ── 档位 0：收起（仅露把手+头部） ── */
    body.panel-sheet-collapsed #info-panel {
        display: flex !important;
        /* 90px = 20px把手感应区 + 70px panel-header min-height，完整显示标题区 */
        top: calc(100dvh - 90px - env(safe-area-inset-bottom, 0px)) !important;
        overflow: hidden !important;
    }

    /* 收起档且未在拖拽中：隐藏 body/tabs/footer，只露出 panel-header
       拖拽开始时 panel-sheet-dragging 类出现，:not() 失效，自动恢复原生 display */
    body.panel-sheet-collapsed:not(.panel-sheet-dragging) #info-panel .panel-body,
    body.panel-sheet-collapsed:not(.panel-sheet-dragging) #info-panel .panel-tabs-container,
    body.panel-sheet-collapsed:not(.panel-sheet-dragging) #info-panel .panel-footer {
        display: none !important;
    }

    /* ── 档位 2：全屏 ── */
    body.mobile-panel-expanded #info-panel {
        display: flex !important;
        top: calc(env(safe-area-inset-top, 0px) + 60px) !important;
        border-radius: 0 !important;
        transition: top 0.38s cubic-bezier(0.22, 1, 0.36, 1) !important;
    }

    /* ── 拖拽进行中：禁用 CSS 过渡，恢复 overflow（JS 用 setProperty important 控制 top）── */
    body.panel-sheet-dragging #info-panel {
        transition: none !important;
        overflow: visible !important;
    }

    /* ── 抽屉拖拽把手 ── */
    .sheet-grabber {
        display: flex !important;
        justify-content: center;
        align-items: center;
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 72px;
        height: 20px;
        cursor: grab;
        touch-action: none;
        z-index: 2002;
        background: transparent;
        flex-shrink: 0;
    }

    .sheet-grabber-bar {
        width: 40px;
        height: 4px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.78);
        box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2), 0 1px 3px rgba(0, 0, 0, 0.3);
    }

    /* ── 旧展开按钮在移动端隐藏（由把手和三档系统取代） ── */
    .panel-expand-btn {
        display: none !important;
    }

    /* ── 面板头部在移动端圆角处理 ── */
    body.mobile-split-active .panel-header,
    body.panel-sheet-collapsed .panel-header {
        border-radius: 20px 20px 0 0 !important;
    }
    body.mobile-panel-expanded .panel-header {
        border-radius: 0 !important;
    }

    /* ── 面板内容体 ── */
    #info-panel .panel-body {
        flex: 1 1 auto !important;
        min-height: 0 !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        padding-bottom: calc(20px + env(safe-area-inset-bottom, 0px)) !important;
    }

    /* ── 面板底部工具栏 ── */
    #info-panel .panel-footer {
        flex-shrink: 0;
        position: sticky;
        bottom: 0;
        left: 0;
        width: 100%;
        margin-top: 0;
        z-index: 2002;
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)) !important;
    }

    /* ── 顶部颜色填充层（全屏落定后填充信号栏背景） ── */
    .mobile-top-bar-backdrop {
        display: block !important;
        visibility: hidden !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        height: calc(env(safe-area-inset-top, 0px) + 60px) !important;
        background-color: var(--panel-header-bg, #00263b) !important;
        pointer-events: none !important;
        z-index: 11600 !important;
        will-change: transform, opacity;
        /* 收起/拖拽中：从下向上收拢 */
        transform-origin: bottom center !important;
        transform: scaleY(0) !important;
        opacity: 0 !important;
        transition:
            transform 180ms cubic-bezier(0.4, 0, 1, 1),
            opacity 140ms ease-out,
            background-color 200ms ease,
            visibility 0s linear 180ms !important;
    }

    /* 全屏落定且无拖拽：从下向上伸展填充 */
    body.mobile-panel-docked-full:not(.panel-sheet-dragging) .mobile-top-bar-backdrop {
        visibility: visible !important;
        transform: scaleY(1) !important;
        opacity: 1 !important;
        transition:
            transform 300ms cubic-bezier(0.22, 1, 0.36, 1),
            opacity 220ms ease,
            background-color 200ms ease,
            visibility 0s !important;
    }

    /* 移动端 badges 与关闭按钮间距：移动端面板时留出右侧空间 */
    body.mobile-split-active .panel-badges,
    body.mobile-panel-expanded .panel-badges,
    body.panel-sheet-collapsed .panel-badges {
        margin-right: 44px;
    }
}

/* 
   =========================================
   14. 偏好设置面板 (Settings Modal)
   ========================================= 
*/
#settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99999 !important;
    display: none;
    backdrop-filter: blur(3px);
    animation: overlayFadeIn 0.2s ease-out;
}

.settings-modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    color: var(--text-main);
    width: 360px;
    max-width: 90%;
    max-height: 80vh;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--divider);
    z-index: 100000 !important;
    animation: settingsPopIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 全局对话框与遮罩层级保障：设置面板、关于面板、帮助对话框必须高于顶栏与浮动菜单栏 */
#settings-overlay,
#help-overlay,
.help-overlay,
.modal-overlay,
.dialog-overlay,
.swal-overlay,
.swal2-container,
.custom-modal-overlay,
div[class*="overlay"],
div[id*="overlay"] {
    z-index: 99999 !important;
}

.settings-modal,
.text-dialog,
.help-dialog,
.modal-dialog {
    z-index: 100000 !important;
}

@keyframes settingsPopIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--divider);
}

.settings-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: bold;
}

.settings-close-btn {
    background: var(--ctrl-btn-bg);
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
}

.settings-close-btn:hover {
    background-color: var(--ctrl-hover);
    color: var(--text-main);
}

.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.settings-group {
    padding: 15px 20px;
}

.settings-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px dashed var(--divider);
}

.settings-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.settings-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
}

.settings-desc {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 4px;
    display: block;
}

.settings-select {
    padding: 6px 10px;
    font-size: 13px;
    border-radius: 6px;
    border: 1px solid var(--input-border);
    background-color: var(--bg-color);
    color: var(--text-main);
    min-width: 120px;
    text-align: right;
    cursor: pointer;
}

.settings-select:disabled {
    opacity: 0.6;
    background-color: var(--ctrl-btn-bg);
    cursor: not-allowed;
}

.settings-row cgo-toolbar-select {
    width: 165px;
    flex: 0 0 165px;
}

@media (max-width: 480px) {
    .settings-modal {
        width: 90vw;
    }
}

.settings-label-emoji {
    font-family: "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji", sans-serif !important;
    font-size: 22px !important;
    line-height: 1 !important;
    vertical-align: middle;
    display: inline-block;
    font-weight: normal !important;
}

/*
   =========================================
   15. 选项卡系统 (Tabbed Interface)
   ========================================= 
*/
.panel-tabs-container {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--divider);
    position: relative;
    z-index: 10;
    background: var(--card-bg);
}

.panel-tabs-nav {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    flex: 1;
    margin-top: 0;
    margin-right: 0;
    margin-left: 0;
    margin-bottom: -1px;
    padding: 0 0px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.panel-tabs-nav::-webkit-scrollbar {
    display: none;
}

.tab-item {
    padding-top: 9px;
    padding-right: 13px;
    padding-bottom: 7px;
    padding-left: 13px;
    cursor: pointer;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
    flex-shrink: 0;
    position: relative;
}

.tab-item:hover {
    color: var(--text-main);
    background-color: var(--list-hover);
}

.panel-share-btn {
    width: 30px;
    height: 30px;
    margin-right: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--card-bg);
    /* 添加背景以遮挡滚动的标签 */
    color: var(--text-main);
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s;
    opacity: 0.7;
    position: relative;
    z-index: 11;
    /* 确保高于导航栏层级 */
}

.panel-share-btn:hover {
    opacity: 1;
    background-color: var(--bg-color);
    color: var(--primary-color);
}


.tab-item.active {
    color: var(--text-main);
    font-weight: bold;
    border-bottom-color: var(--line-color, var(--primary-color));
}

.panel-tabs-body {
    min-height: 100px;
    position: relative;
}

.tab-pane {
    display: none;
    animation: tabFadeIn 0.2s ease-out;
}

.tab-pane.active {
    display: block;
}

@keyframes tabFadeIn {
    from {
        opacity: 0;
        transform: translateY(3px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.transfer-section {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px dashed var(--divider);
}

.transfer-section .info-row {
    margin-bottom: 6px;
}

.transfer-section .svg-icon-placeholder,
.transfer-section .svg-icon-inlined {
    vertical-align: middle;
}

/* 
   =========================================
   16. 杂项与移动端适配 (Misc & Mobile)
   ========================================= 
*/
#theme-tooltip {
    position: absolute;
    top: 50px;
    right: 50px;
    background-color: var(--primary-color);
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    pointer-events: none;
    z-index: 3000;
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

#theme-tooltip.show {
    opacity: 1;
    transform: translateY(0);
}

#theme-tooltip::after {
    display: none;
}

.help-data-info2 {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    padding: 12px;
    border-radius: 8px;
    font-size: 12px;
    margin-bottom: 20px;
    line-height: 1.5;
}

[data-theme="dark"] .help-data-info2 {
    background-color: #3e3312;
    border-color: #584610;
    color: #ffd970;
}

#theme-btn {
    display: none !important;
}

.svg-icon-inlined,
.svg-icon-placeholder {
    display: inline-flex;
    align-items: center;
}

.svg-icon-inlined svg {
    height: 100%;
    width: auto;
    display: block;
}

input,
button,
select,
textarea {
    font-family: inherit !important;
    font-weight: inherit !important;
    -webkit-user-select: auto !important;
    user-select: auto !important;
    pointer-events: auto !important;
}

/* 
   =========================================
   17. 拖拽幽灵与图例固定 (New Features)
   ========================================= 
*/
#drag-ghost {
    position: fixed;
    top: 60px;
    left: 0;
    width: 360px;
    height: calc(100% - 60px);
    background-color: rgba(52, 152, 219, 0.2);
    border: 2px dashed rgba(52, 152, 219, 0.5);
    z-index: 1500;
    display: none;
    pointer-events: none;
    box-sizing: border-box;
    transition: opacity 0.2s;
}

#drag-ghost.active {
    display: block;
}

.legend-pin-btn {
    position: absolute;
    top: 15px;
    right: 35px;
    background: var(--ctrl-btn-bg);
    border: none;
    border-radius: 20px;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 6px 15px;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
    z-index: 20;
}

.legend-pin-btn:hover {
    background-color: var(--ctrl-hover);
    color: var(--primary-color);
}

.legend-pin-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.panel-section {
    border: none;
    background: transparent;
    margin: 0;
}

.section-header {
    display: none;
}

.section-body {
    padding: 0;
    display: block !important;
}

#section-search .search-container {
    position: sticky;
    top: 0;
    background: var(--card-bg);
    z-index: 10;
}

@keyframes slideInUpShort {
    from {
        opacity: 0;
        transform: translateY(15px);
        background-color: var(--list-hover);
    }

    to {
        opacity: 1;
        transform: translateY(0);
        background-color: transparent;
    }
}

.history-item-anim {
    animation: slideInUpShort 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes slideOutLeftCollapse {
    0% {
        transform: translateX(0);
        opacity: 1;
        max-height: 100px;
        margin-bottom: 0;
        padding-top: 0;
        padding-bottom: 0;
    }

    100% {
        transform: translateX(-100%);
        opacity: 0;
        max-height: 0;
        margin-bottom: 0;
        border-bottom-width: 0;
        padding: 0;
    }
}

.history-item-out {
    animation: slideOutLeftCollapse 0.3s cubic-bezier(0.55, 0.085, 0.68, 0.53) forwards;
    pointer-events: none;
    overflow: hidden;
}

/* 
   =========================================
   18. 桌面端与固定模式适配 (Desktop Only)
   ========================================= 
*/
@media (min-width: 641px) {
    #info-panel {
        resize: vertical;
        min-height: 300px;
        max-height: 90dvh;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        position: fixed;
    }

    .panel-header {
        flex-shrink: 0;
        cursor: move;
        user-select: none;
    }

    .legend-pin-btn {
        display: flex;
    }

    body.legend-pinned #legend-overlay {
        background-color: transparent !important;
        backdrop-filter: none !important;
        pointer-events: none;
    }

    body.legend-pinned .legend-modal {
        position: fixed;
        top: 60px !important;
        left: 0 !important;
        width: 360px !important;
        height: calc(100dvh - 60px) !important;
        max-height: none !important;
        border-radius: 0 !important;
        border-right: 1px solid var(--border-color);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.05);
        transform: none !important;
        animation: none !important;
        pointer-events: auto;
        z-index: 500;
    }

    body.legend-pinned .legend-close-btn {
        left: 12px !important;
        top: 5px !important;
        z-index: 501;
    }

    body.legend-pinned .legend-pin-btn {
        right: 12px !important;
        top: 5px !important;
        z-index: 501;
    }

    body.legend-pinned .legend-modal::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 40px;
        background-color: var(--card-bg);
        border-bottom: 1px solid var(--divider);
        z-index: 15;
        pointer-events: none;
    }

    body.legend-pinned .legend-item {
        padding: 6px 8px !important;
        min-width: 0;
        gap: 6px !important;
    }

    body.legend-pinned #legend-content {
        padding-left: 0 !important;
        padding-right: 0 !important;
        padding-top: 40px !important;
    }

    body.legend-pinned .section-body {
        padding-left: 0 !important;
        padding-right: 0 !important;
        padding-bottom: 0px !important;
    }

    body.legend-pinned .panel-section {
        border-bottom: 1px solid var(--divider);
        background: var(--card-bg);
    }

    body.legend-pinned .section-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 3px 12px;
        cursor: pointer;
        font-size: 13px;
        font-weight: bold;
        color: var(--text-main);
        user-select: none;
        background-color: var(--list-hover);
        transition: background-color 0.2s;
    }

    body.legend-pinned .section-header:hover {
        background-color: var(--ctrl-hover);
    }

    body.legend-pinned .section-body {
        padding: 0 20px 0px 20px;
        overflow: visible;
    }

    body.legend-pinned .panel-section.collapsed .section-body {
        display: none !important;
    }

    body.legend-pinned .panel-section.collapsed {
        border-bottom: 1px solid var(--divider);
    }

    .section-arrow {
        width: 20px;
        height: 20px;
        fill: var(--text-light);
        transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        transform: rotate(0deg);
    }

    body.legend-pinned .panel-section.collapsed .section-arrow {
        transform: rotate(-90deg);
    }

    body.legend-pinned #section-search .search-container {
        padding-top: 12px;
        margin-bottom: 0px;
        position: static;
        background: transparent;
    }

    body.legend-pinned #section-search .section-body {
        padding-bottom: 1px !important;
    }

    body.legend-pinned .legend-grid {
        margin-bottom: 10px;
    }

    body.legend-pinned #station-search-input {
        padding: 6px 30px 6px 10px !important;
        height: 32px;
        font-size: 13px;
        border-radius: 4px;
    }

    body.legend-pinned .search-container {
        margin-bottom: 0px !important;
        padding-left: 12px !important;
        padding-right: 12px !important;
    }

    body.legend-pinned #search-results-list {
        max-height: 200px !important;
        margin-bottom: 0 !important;
    }

    body.legend-pinned .search-item {
        padding: 5px 12px !important;
        border-radius: 2px !important;
        font-size: 12px !important;
        line-height: 12px !important;
    }

    body.legend-pinned .search-item svg {
        height: 20px !important;
    }

    body.legend-pinned #map-container {
        position: absolute;
        left: 360px !important;
        width: calc(100% - 360px) !important;
        transition: left 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94), width 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    body.legend-pinned #modern-zoom-control {
        left: 380px !important;
        transition: left 0.3s;
    }

    /* Fixed Mode Station Panel Layout */
    body.legend-pinned #info-panel {
        position: static !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        animation: none !important;
        display: flex;
        flex-direction: column;
        /* REFAC: Use flex-grow to fill remaining space instead of fixed calc */
        flex: 1;
        min-height: 0;
        /* Critical for allowing flex item to shrink below content size */
        height: auto;
        padding-bottom: 0;
        resize: none;
        /* Hide resize handle in pinned mode */
    }

    body.legend-pinned #info-panel .panel-header {
        display: none;
    }

    body.legend-pinned #info-panel .panel-expand-btn {
        display: none !important;
    }

    body.legend-pinned .panel-share-btn {
        width: 28px;
        height: 28px;
        margin-right: 8px;
    }

    /* Tabs at the top */
    body.legend-pinned #info-panel .panel-tabs-nav {
        flex-shrink: 0;
        margin-top: 0;
        margin-right: -20px;
        margin-left: -20px;
        margin-bottom: -1px;
        padding: 0 20px;
        border-bottom: 1px solid var(--divider);
        background: var(--card-bg);
        z-index: 5;
    }

    /* Fixed Footer at Sidebar Bottom - REFAC to Flex */
    body.legend-pinned #info-panel .panel-footer {
        position: static;
        width: 100%;
        margin: 0;
        border-top: 1px solid var(--divider);
        padding: 15px;
        padding-bottom: calc(15px + env(safe-area-inset-bottom));
        /* Match standard padding */
    }

    /* Scrollable Content */
    body.legend-pinned #info-panel .panel-body {
        padding-bottom: 15px;
        /* Reset excessive padding */
    }

    /* Remove padding from parent to let panel fill space */
    body.legend-pinned .section-body:has(#info-panel) {
        padding: 0 !important;
    }

    #section-station {
        order: -1;
    }

    body.legend-pinned.pinned-hidden .legend-modal {
        transform: translateX(-100%) !important;
        pointer-events: none;
        box-shadow: none;
    }

    body.legend-pinned.pinned-hidden #map-container {
        left: 0 !important;
        width: 100% !important;
    }

    body.legend-pinned.pinned-hidden #modern-zoom-control {
        left: 20px !important;
    }


    .panel-expand-btn {
        display: none !important;
    }

    .pin-tree-container {
        padding-bottom: 1px;
        user-select: none;
        max-height: 250px;
        overflow-y: auto;
    }

    .tree-line-group {
        border-bottom: 1px solid var(--divider);
    }

    .tree-line-header {
        display: flex;
        align-items: center;
        padding: 2px 20px;
        cursor: pointer;
        font-size: 12px;
        font-weight: bold;
        color: var(--text-main);
        transition: background 0.1s;
    }

    .tree-line-header:hover {
        background-color: var(--list-hover);
    }

    .tree-line-color {
        width: 12px;
        height: 18px;
        border-radius: 2px;
        margin-right: 6px;
        flex-shrink: 0;
    }

    .tree-line-name {
        flex: 1;
    }

    .tree-arrow {
        width: 16px;
        height: 16px;
        fill: var(--text-light);
        transition: transform 0.2s;
    }

    .tree-line-group.expanded .tree-arrow {
        transform: rotate(180deg);
    }

    .tree-station-list {
        display: none;
        background-color: var(--bg-color);
    }

    .tree-line-group.expanded .tree-station-list {
        display: block;
        animation: slideDown 0.15s ease-out;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-5px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .tree-station-item {
        display: flex;
        align-items: center;
        padding: 2px 10px 2px 30px;
        font-size: 11px;
        color: var(--text-main);
        cursor: pointer;
        transition: background 0.1s;
    }

    .tree-station-item:hover {
        background-color: var(--list-hover);
        color: var(--primary-color);
    }

    .tree-station-item.active {
        background-color: var(--list-hover);
        color: var(--primary-color);
        font-weight: bold;
    }

    .tree-station-dot {
        width: 6px;
        height: 6px;
        background-color: var(--divider);
        border-radius: 50%;
        margin-right: 10px;
        transition: background 0.2s;
    }

    .tree-station-item:hover .tree-station-dot,
    .tree-station-item.active .tree-station-dot {
        background-color: var(--primary-color);
    }

    .tree-station-item.pending {
        color: var(--not-open-text);
    }
}

/* 
   =========================================
   19. 移动端专用布局补充 (Mobile Layout Supplements)
   注：面板主体三档系统在上方 section 14 已定义
   =========================================
*/
@media (max-width: 640px) {
    .legend-close-btn {
        left: 10px;
    }

    .panel-share-btn {
        width: 30px;
        height: 30px;
        margin-right: 16px;
    }

    body.mobile-split-active #modern-zoom-control .mz-slider-track {
        display: none;
    }

    /* 移动端面板头部通用样式 */
    body.mobile-split-active .panel-header,
    body.mobile-panel-expanded .panel-header,
    body.panel-sheet-collapsed .panel-header {
        min-height: 70px;
        padding: 15px 52px 15px 20px;
        align-items: center;
        justify-content: flex-start;
        background-color: var(--panel-header-bg) !important;
        color: var(--panel-header-text) !important;
    }

    body.mobile-split-active .panel-cn-name,
    body.mobile-panel-expanded .panel-cn-name {
        font-size: 20px;
    }

    body.mobile-split-active .panel-en-name,
    body.mobile-panel-expanded .panel-en-name {
        font-size: 12px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    body.mobile-split-active .panel-close-btn,
    body.mobile-panel-expanded .panel-close-btn,
    body.panel-sheet-collapsed .panel-close-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        right: 12px;
        top: 50%;
        transform: translateY(-50%);
        color: rgba(255, 255, 255, 0.9);
        background: rgba(255, 255, 255, 0.15);
        border-radius: 50%;
        width: 32px;
        height: 32px;
        padding: 0;
        cursor: pointer;
    }

    body.mobile-split-active .line-badge,
    body.mobile-panel-expanded .line-badge {
        height: 30px;
        width: auto;
    }

    body.mobile-split-active .special-br {
        display: block;
    }

    body.mobile-split-active .special-br::before {
        content: "";
    }

    .settings-row.desktop-only {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .legend-modal {
        width: 90vw !important;
        max-width: 360px !important;
        left: 50% !important;
        top: 50% !important;
        transform: translate(-50%, -50%) !important;
        transform-origin: center center !important;
        animation: mobileExpand 0.2s ease-out;
        padding-bottom: 15px;
        max-height: 80dvh !important;
        display: flex;
        flex-direction: column;
    }

    #legend-content {
        padding: 0 10px 10px 10px;
        overflow-y: auto;
    }

    .legend-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 4px 6px !important;
    }

    .legend-item {
        padding: 6px 8px !important;
        min-width: 0;
        min-height: 32px !important;
        gap: 6px !important;
    }

    .legend-item-name {
        font-size: 11.5px !important;
    }
}

/* Sidebar Header Color Squares */
.header-color-squares {
    display: none;
    align-items: center;
    margin-left: auto;
    margin-right: 10px;
}

.station-history-section.collapsed .header-color-squares {
    display: inline-flex;
}

.header-color-square {
    width: 8px;
    height: 8px;
    margin-right: 4px;
    display: inline-block;
    border-radius: 2px;
}

/* =========================================
   CGoUI Web Performance & Sparkle SOP
   ========================================= */
cgo-icon:not(:defined) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    visibility: visible;
    opacity: 0.6;
}

.img-icon-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.header-logo-wrapper {
    height: 32px;
    width: 32px;
    margin-right: 8px;
}

.header-logo-wrapper .header-logo {
    height: 32px;
    width: 32px;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.header-logo-wrapper .header-logo.loaded,
.header-logo-wrapper.loaded .header-logo,
.img-icon-wrapper.loaded .header-logo,
.img-icon-wrapper:has(img.loaded) .header-logo {
    opacity: 1;
}


.icon-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--primary-color, #0070f3);
    opacity: 0.85;
    transition: opacity 0.3s ease, transform 0.3s ease;
    animation: sparkle-pulse 1.5s infinite ease-in-out;
    pointer-events: none;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-logo-wrapper .icon-placeholder {
    font-size: 20px;
    --cgo-icon-size: 20px;
}

@keyframes sparkle-pulse {

    0%,
    100% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(0.85);
    }

    50% {
        opacity: 0.9;
        transform: translate(-50%, -50%) scale(1.15);
    }
}

.img-icon-wrapper.loaded .icon-placeholder,
.img-icon-wrapper:has(img.loaded) .icon-placeholder,
.img-icon-wrapper:has(.loaded) .icon-placeholder,
.img-icon-wrapper img.loaded+.icon-placeholder,
.img-icon-wrapper img.loaded~.icon-placeholder {
    opacity: 0 !important;
    visibility: hidden !important;
    display: none !important;
    transform: translate(-50%, -50%) scale(0.5);
    pointer-events: none !important;
}

/* 
   =========================================
   20. 无障碍 (Accessibility)
   焦点指示、视觉隐藏、跳转链接、原生按钮外观复位、动效偏好、移动端输入框字号
   ========================================= 
*/

/* 仅对读屏可见 */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    clip-path: inset(50%) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* 跳转链接：平时移出视口，键盘聚焦时出现在左上角 */
.skip-links {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100000;
}

.skip-link {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 8px 14px;
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-main);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: translateY(0);
}

/* 全局键盘焦点环：零特异度，组件自带的 focus-visible 样式仍可覆盖 */
:where(a, button, input, select, textarea, summary, [tabindex], [role="button"], [role="tab"], [role="option"]):focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

/* 位于滚动 / 裁切容器内的条目，焦点环向内收，避免被容器边缘裁掉 */
#map-container:focus-visible,
#info-panel .tab-item:focus-visible,
#info-panel .panel-cn-name:focus-visible,
.section-header:focus-visible,
.tree-line-header:focus-visible,
.tree-station-item:focus-visible,
.station-history-detail-trigger:focus-visible,
#station-search-input:focus-visible {
    outline-offset: -2px;
}

/*
   由 div 改为原生 button 的条目：复位浏览器默认外观，尺寸、配色仍由各自的类名规则决定。
   :where() 特异度为 0，不会压过任何既有规则。
*/
:where(button.tree-line-header, button.tree-station-item, button.legend-item, button.selector-item) {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    text-align: inherit;
    text-transform: none;
}

/* div 是块级撑满、content-box；button 默认按内容收缩、border-box，逐类还原 */
:where(button.tree-line-header, button.tree-station-item, button.legend-item) {
    width: 100%;
    box-sizing: border-box;
}

:where(button.selector-item) {
    box-sizing: content-box;
}

/* 上方「input, button, select, textarea」规则对 button 强制 font-weight / user-select，这里按原 div 的表现还原 */
button.tree-line-header,
button.tree-station-item.active {
    font-weight: bold !important;
}

button.legend-item {
    -webkit-user-select: none !important;
    user-select: none !important;
}

/*
   状态色 / 信息色作文字时改用加深（深色模式为提亮）的文字专用变量。
   css/cgo_*.css 是 CGoUI 同步来的副本，不在原文件里改，统一在应用层覆盖。
*/
.badge-info {
    color: var(--info-text);
}

.text-danger,
.form-hint {
    color: var(--danger-text) !important;
}

.text-success,
.form-hint.success {
    color: var(--success-text) !important;
}

.text-warning,
.disclaimer {
    color: var(--warning-text) !important;
}

/* 移动端：文本输入框不小于 16px，避免 iOS 聚焦时自动放大页面（页面缩放已不再禁用） */
@media (max-width: 640px) {

    input[type="text"],
    input[type="search"],
    input:not([type]),
    select,
    textarea {
        font-size: 16px !important;
    }
}

/* 系统开启「减少动态效果」时压掉过渡与动画（地图飞跃、面板滑入、加载动效等一步到位） */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0s !important;
        scroll-behavior: auto !important;
    }
}