/* ========================================
   徐州两日游 - 主样式文件
   ======================================== */

/* CSS 变量定义 */
:root {
    /* 主题色 */
    --color-primary: #667eea;
    --color-primary-dark: #764ba2;
    --color-primary-light: #f0f4ff;
    --color-primary-border: #667eea30;

    /* 功能色 */
    --color-success: #4CAF50;
    --color-warning: #ff9800;
    --color-danger: #ff5722;
    --color-info: #45B7D1;

    /* 标记类型色 */
    --color-scenic: #FF6B6B;
    --color-food: #4ECDC4;
    --color-transport: #45B7D1;

    /* 文字色 */
    --color-text-primary: #333;
    --color-text-secondary: #666;
    --color-text-muted: #999;

    /* 背景色 */
    --color-bg-page: #f5f7fa;
    --color-bg-card: #fff;
    --color-bg-hover: #f8f9fa;
    --color-bg-border: #f0f0f0;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-header: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-primary: 0 4px 12px rgba(102, 126, 234, 0.1);
    --shadow-primary-strong: 0 4px 20px rgba(102, 126, 234, 0.25);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;

    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* 容器最大宽度 */
    --container-max-width: 1400px;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    font-family: var(--font-family);
    background: var(--color-bg-page);
    min-height: 100vh;
}

/* ========================================
   顶部导航
   ======================================== */
.header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-header);
}

.header-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.header h1 {
    font-size: 1.5em;
    font-weight: 700;
}

.header .date {
    font-size: 0.9em;
    opacity: 0.9;
}

/* 日期切换按钮 */
.day-switcher {
    display: flex;
    gap: var(--spacing-sm);
}

/* 吸顶日期切换按钮（默认隐藏，手机端显示） */
.day-switcher-sticky {
    display: none;
}

.day-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-xl);
    background: transparent;
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.day-btn.active {
    background: white;
    color: var(--color-primary);
    border-color: white;
}

.day-btn:hover:not(.active) {
    border-color: white;
    background: rgba(255, 255, 255, 0.2);
}

/* 天气信息 */
.weather-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    backdrop-filter: blur(4px);
}

.weather-icon {
    font-size: 28px;
}

.weather-detail {
    line-height: 1.3;
}

.weather-temp {
    font-size: 18px;
    font-weight: 700;
}

.weather-desc {
    font-size: 12px;
    opacity: 0.9;
}

/* ========================================
   主体内容
   ======================================== */
.main-wrapper {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-xl);
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--spacing-xl);
}

/* 地图区域 */
.map-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: fit-content;
}

#map {
    width: 100%;
    height: 540px;
}

/* ========================================
   行程时间线
   ======================================== */
.schedule-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    max-height: 540px;
    overflow-y: auto;
}

.schedule-section h3 {
    font-size: 16px;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-primary);
}

.timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 5px;
    top: var(--spacing-sm);
    bottom: var(--spacing-sm);
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 2px;
}

/* 时间线项目 */
.timeline-item {
    position: relative;
    padding: var(--spacing-md) 0;
    padding-right: 50px;
    cursor: pointer;
    transition: all 0.3s;
}

.timeline-item:hover {
    transform: translateX(4px);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -18px;
    top: 18px;
    width: 10px;
    height: 10px;
    background: white;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-full);
    z-index: 1;
}

.timeline-item.highlight::before {
    background: var(--color-primary);
}

.timeline-item-content {
    flex: 1;
    min-width: 0;
}

.timeline-item .time {
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.timeline-item .title {
    font-size: 15px;
    color: var(--color-text-primary);
    font-weight: 600;
    margin: 3px 0;
}

.timeline-item .title .cost {
    font-size: 12px;
    color: var(--color-primary);
    font-weight: 500;
    background: var(--color-primary-light);
    padding: 2px var(--spacing-sm);
    border-radius: 10px;
    margin-left: var(--spacing-sm);
}

.timeline-item .desc {
    font-size: 12px;
    color: var(--color-text-secondary);
}

.timeline-item .nav-link {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 5px 0;
    width: 40px;
    text-align: center;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
}

.timeline-item .nav-link:hover {
    background: var(--color-primary-dark);
}

/* ========================================
   时间总览
   ======================================== */
.time-overview {
    background: linear-gradient(135deg, var(--color-primary-light), #f8f5ff);
    border: 1px solid var(--color-primary-border);
    border-radius: var(--radius-md);
    padding: 14px var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: sticky;
    top: -1px;
    z-index: 10;
    box-shadow: var(--shadow-primary);
}

/* 移动端吸顶样式 */
.time-overview.sticky-fixed {
    position: fixed;
    left: var(--spacing-md);
    right: var(--spacing-md);
    top: 50px;
    margin: 0;
    z-index: 98;
    box-shadow: var(--shadow-primary-strong);
}

/* 移动端吸顶地图样式 */
.map-section-sticky {
    display: none;
}

@media (max-width: 768px) {
    .map-section-sticky {
        display: none;
        position: fixed;
        left: var(--spacing-md);
        right: var(--spacing-md);
        top: 50px;
        z-index: 97;
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow-md);
        height: 180px;
        background: var(--color-bg-card);
    }

    .map-section-sticky.visible {
        display: block;
    }

    .map-section-sticky #map-sticky {
        width: 100%;
        height: 100%;
    }

    /* 当地图吸顶时，调整时间总览位置 */
    .time-overview.sticky-fixed.with-map {
        top: 240px;
    }

    /* 吸顶地图占位符 */
    .map-sticky-placeholder {
        display: none;
    }

    .map-sticky-placeholder.visible {
        display: block;
    }
}

/* 占位元素 */
.time-overview-placeholder {
    display: none;
}

.time-overview-placeholder.visible {
    display: block;
}

.time-overview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.time-overview-label {
    font-size: 12px;
    color: var(--color-text-muted);
}

.time-overview-status {
    font-size: 11px;
    padding: 2px var(--spacing-sm);
    border-radius: 10px;
    background: var(--color-success);
    color: white;
    font-weight: 600;
}

.time-overview-status.upcoming {
    background: var(--color-warning);
}

.time-overview-status.ended {
    background: var(--color-text-muted);
}

.time-overview-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.time-overview-icon {
    font-size: 28px;
}

.time-overview-info {
    flex: 1;
}

.time-overview-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.time-overview-time {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-top: 2px;
}

.time-overview-countdown {
    text-align: right;
    min-width: 80px;
}

.time-overview-countdown .number {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.time-overview-countdown .unit {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ========================================
   路线节点
   ======================================== */
.route-node {
    position: relative;
    padding: 6px 0;
    padding-right: 50px;
    margin: 2px 0;
    cursor: pointer;
    transition: all 0.3s;
}

.route-node:hover {
    transform: translateX(4px);
}

.route-node-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-hover);
    border-radius: var(--radius-sm);
    border-left: 3px solid #ddd;
    font-size: 12px;
}

.route-node.active .route-node-content {
    border-left-color: var(--color-primary);
    background: var(--color-primary-light);
}

.route-node-icon {
    font-size: 14px;
}

.route-node-info {
    flex: 1;
}

.route-node-dest {
    font-weight: 600;
    color: var(--color-text-primary);
}

.route-node-stats {
    display: flex;
    gap: 10px;
    color: var(--color-text-secondary);
    font-size: 11px;
    margin-top: 2px;
}

.route-node-cost {
    color: var(--color-danger);
    font-weight: 600;
}

.route-node-nav {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 5px 0;
    width: 40px;
    text-align: center;
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
}

.route-node-nav:hover {
    background: var(--color-primary-dark);
}

/* ========================================
   景点相册
   ======================================== */
.gallery-section {
    max-width: var(--container-max-width);
    margin: 0 auto var(--spacing-xl);
    padding: 0 var(--spacing-xl);
}

.gallery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.gallery-header h3 {
    font-size: 18px;
    color: var(--color-text-primary);
}

.gallery-nav {
    display: flex;
    gap: var(--spacing-sm);
}

.gallery-nav button {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--color-bg-card);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.gallery-nav button:hover {
    background: var(--color-primary);
    color: white;
}

.gallery-container {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-sm) var(--spacing-xs);
    scroll-behavior: smooth;
    cursor: grab;
    user-select: none;
}

.gallery-container.dragging {
    cursor: grabbing;
    scroll-behavior: auto;
    scroll-snap-type: none;
}

.gallery-container::-webkit-scrollbar {
    height: 6px;
}

.gallery-container::-webkit-scrollbar-track {
    background: #eee;
    border-radius: 3px;
}

.gallery-container::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 3px;
}

.gallery-item {
    flex: 0 0 280px;
    scroll-snap-align: start;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-item:hover .gallery-image img {
    transform: scale(1.05);
}

.gallery-tag {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: rgba(102, 126, 234, 0.95);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

.gallery-tag.food {
    background: rgba(78, 205, 196, 0.95);
}

.gallery-info {
    padding: var(--spacing-lg);
}

.gallery-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

.gallery-desc {
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ========================================
   底部信息区
   ======================================== */
.footer-section {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl) 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.info-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.info-card h3 {
    font-size: 16px;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-bg-border);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.info-value {
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 14px;
}

.info-tip {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-bg-border);
}

/* 费用合计行样式 */
.info-row.total {
    background: var(--color-bg-hover);
    margin: var(--spacing-sm) calc(-1 * var(--spacing-xl)) calc(-1 * var(--spacing-xl));
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.info-row.total .info-label {
    font-weight: 600;
    color: var(--color-text-primary);
}

.info-row.total .info-value {
    color: var(--color-primary);
    font-size: 20px;
}

/* ========================================
   地图弹窗样式
   ======================================== */
.amap-info-content {
    padding: 0 !important;
}

.popup-content {
    width: 280px;
}

.popup-content .popup-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.popup-content .popup-body {
    padding: 14px;
}

.popup-content h4 {
    margin: 0 0 var(--spacing-sm);
    color: var(--color-text-primary);
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.popup-content .rating {
    background: var(--color-warning);
    color: white;
    padding: 2px var(--spacing-sm);
    border-radius: 4px;
    font-size: 11px;
}

.popup-content .info-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 6px var(--spacing-md);
    font-size: 13px;
    margin: 10px 0;
}

.popup-content .info-label {
    color: var(--color-text-muted);
}

.popup-content .info-value {
    color: var(--color-text-primary);
}

.popup-content .tips {
    font-size: 12px;
    color: var(--color-danger);
    margin: 10px 0;
    padding-left: 18px;
    position: relative;
}

.popup-content .tips::before {
    content: '';
    position: absolute;
    left: 0;
    font-size: 12px;
}

.popup-content .nav-btn {
    display: block;
    width: 100%;
    padding: 10px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-align: center;
    margin-top: 10px;
}

/* ========================================
   响应式布局
   ======================================== */
@media (max-width: 1024px) {
    .main-wrapper {
        grid-template-columns: 1fr;
    }

    #map {
        height: 400px;
    }

    .schedule-section {
        max-height: none;
    }
}

@media (max-width: 768px) {
    .header {
        padding: var(--spacing-lg);
        position: relative;
    }

    .header h1 {
        font-size: 1.25em;
    }

    .header .date {
        font-size: 0.85em;
    }

    .header-content {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }

    .header-left {
        text-align: center;
    }

    .header-right {
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .day-btn {
        padding: 6px var(--spacing-lg);
        font-size: 13px;
    }

    /* 日期切换按钮吸顶 */
    .day-switcher-sticky {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 99;
        background: var(--gradient-primary);
        padding: 10px var(--spacing-lg);
        justify-content: center;
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-header);
        transform: translateY(-100%);
        transition: transform 0.3s ease;
    }

    .day-switcher-sticky.visible {
        transform: translateY(0);
    }

    .weather-info {
        padding: var(--spacing-sm) 14px;
        gap: 10px;
    }

    .weather-icon {
        font-size: 24px;
    }

    .weather-temp {
        font-size: 16px;
    }

    .weather-desc {
        font-size: 11px;
    }

    .main-wrapper {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }

    #map {
        height: 280px;
    }

    .gallery-section {
        padding: 0 var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .gallery-item {
        flex: 0 0 240px;
    }

    .gallery-image {
        height: 150px;
    }

    .gallery-info {
        padding: var(--spacing-md);
    }

    .gallery-name {
        font-size: 15px;
    }

    .footer-section {
        grid-template-columns: 1fr;
        padding: 0 var(--spacing-md) var(--spacing-xl);
        gap: var(--spacing-md);
    }

    .info-card {
        padding: var(--spacing-lg);
    }

    .info-row.total {
        margin: var(--spacing-sm) calc(-1 * var(--spacing-lg)) calc(-1 * var(--spacing-lg));
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    #map {
        height: 240px;
    }

    .gallery-item {
        flex: 0 0 200px;
    }

    .gallery-image {
        height: 130px;
    }

    .timeline-item .title {
        font-size: 14px;
    }
}