/* ==================== CSS变量定义 ==================== */
:root {
    /* 亮色主题 */
    --bg-primary: #F5F7FA;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    --text-primary: #2C3E50;
    --text-secondary: #5A6C7D;
    --text-hint: #95A5A6;
    --border-color: #E4E7EB;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    
    /* 主题色 */
    --color-primary: #4CAF50;
    --color-primary-light: #66BB6A;
    --color-primary-dark: #388E3C;
    --color-success: #4CAF50;
    --color-warning: #FF9800;
    --color-danger: #F44336;
    --color-info: #2196F3;
    
    /* 易控车联专用 */
    --yikong-gradient: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
    
    /* 快捷入口按钮颜色 */
    --color-yikong: #FF6B6B;
    --color-yikong-light: #FF8E53;
    --color-yikong-dark: #E55A5A;
    --color-adb: #2196F3;
    --color-adb-light: #42A5F5;
    --color-adb-dark: #1976D2;
    --color-toolbox: #4CAF50;
    --color-toolbox-light: #66BB6A;
    --color-toolbox-dark: #388E3C;
    --color-key: #9C27B0;
    --color-key-light: #AB47BC;
    --color-key-dark: #7B1FA2;
    --color-language: #FF9800;
    --color-language-light: #FFB74D;
    --color-language-dark: #F57C00;
    
    /* 过渡动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 暗黑主题 */
[data-theme="dark"] {
    --bg-primary: #1A1A1A;
    --bg-secondary: #242424;
    --bg-card: #2D2D2D;
    --text-primary: #E8E8E8;
    --text-secondary: #B0B0B0;
    --text-hint: #808080;
    --border-color: #3D3D3D;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    padding-top: 70px;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ==================== 固定头部 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: background-color var(--transition-normal);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 24px;
    color: var(--text-primary);
    font-weight: 600;
    transition: color var(--transition-normal);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 主题切换按钮 */
.theme-toggle {
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-card);
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

/* ==================== 客服悬浮球 ==================== */
.floating-contact {
    position: fixed;
    right: 40px;
    top: 25vh;
    width: 56px;
    height: 56px;
    background: #FFFFFF;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    transition: all var(--transition-normal);
    animation: float 3s ease-in-out infinite;
}

.floating-contact:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.floating-contact::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(7, 193, 96, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: 0;
}

.floating-contact:active::before {
    width: 100%;
    height: 100%;
}

.floating-contact-icon {
    width: 56px;
    height: 56px;
    position: relative;
    z-index: 1;
}

/* 客服提示气泡 */
.contact-tooltip {
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #07c160, #00b050);
    color: white;
    padding: 10px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.contact-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 8px 0 8px 8px;
    border-color: transparent transparent transparent #00b050;
}

.contact-tooltip.show {
    opacity: 1;
    visibility: visible;
    animation: tooltipBounce 0.5s ease;
}

@keyframes tooltipBounce {
    0% {
        transform: translateY(-50%) translateX(10px);
        opacity: 0;
    }
    60% {
        transform: translateY(-50%) translateX(-5px);
    }
    100% {
        transform: translateY(-50%) translateX(0);
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ==================== 主内容区 ==================== */
.main-content {
    min-height: calc(100vh - 70px);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* ==================== 通知卡片 ==================== */
.notice-card {
    background: linear-gradient(135deg, #FFF3E0 0%, #FFE0B2 100%);
    border: 2px solid var(--color-warning);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .notice-card {
    background: linear-gradient(135deg, #3E2723 0%, #4E342E 100%);
    border-color: var(--color-warning);
}

.notice-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.notice-content {
    flex: 1;
}

.notice-content h4 {
    color: var(--color-warning);
    margin-bottom: 8px;
    font-size: 18px;
}

.notice-content p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

/* ==================== 快捷入口 ==================== */
/* 清风玩机助手APP下载 */
.secondary-download {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-md);
    border: 2px solid #667eea;
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 快捷入口网格 */
.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

/* 主下载区网格 - 用于清风车机助手卡片 */
.main-download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 12px;
}

/* 网格布局中的语言按钮 - 高度与清风车机助手一致 */
.main-download-grid .quick-access-item.language {
    height: auto;
    min-height: unset;
    padding: 24px;
    border-radius: 16px;
    border-width: 2px;
    box-shadow: var(--shadow-md);
}

/* 出口车机改语言卡片 - 橙色主题 */
.language-download {
    border-color: var(--color-language) !important;
}

.language-download .version {
    color: var(--color-language) !important;
    background: rgba(255, 152, 0, 0.1) !important;
}

[data-theme="dark"] .language-download .version {
    background: rgba(255, 152, 0, 0.2) !important;
}

.language-download:hover {
    border-color: var(--color-language-dark) !important;
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%) !important;
}

.language-download:hover .download-info h2,
.language-download:hover .download-info .description {
    color: white !important;
}

/* 易控车联版卡片 - 红色主题 */
.yikong-download {
    border-color: var(--color-yikong) !important;
}

.yikong-download .version {
    color: var(--color-yikong) !important;
    background: rgba(255, 107, 107, 0.1) !important;
}

[data-theme="dark"] .yikong-download .version {
    background: rgba(255, 107, 107, 0.2) !important;
}

.yikong-download:hover {
    border-color: var(--color-yikong-dark) !important;
    background: linear-gradient(135deg, var(--color-yikong) 0%, var(--color-yikong-light) 100%) !important;
}

.yikong-download:hover .download-info h2,
.yikong-download:hover .download-info .description,
.yikong-download:hover .download-info .version {
    color: white !important;
}

.quick-access-item {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px 16px;
    text-decoration: none;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-primary);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
}

.quick-access-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-dark);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.quick-access-item:hover h2 {
    color: white;
}

.quick-access-item {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
}

.quick-access-item h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    transition: color var(--transition-normal);
}

/* 快捷入口按钮的不同颜色 */
.quick-access-item.yikong {
    border-color: var(--color-yikong);
}

.quick-access-item.yikong:hover {
    border-color: var(--color-yikong-dark);
    background: linear-gradient(135deg, var(--color-yikong) 0%, var(--color-yikong-light) 100%);
}

.quick-access-item.adb {
    border-color: var(--color-adb);
}

.quick-access-item.adb:hover {
    border-color: var(--color-adb-dark);
    background: linear-gradient(135deg, var(--color-adb) 0%, var(--color-adb-light) 100%);
}

.quick-access-item.toolbox {
    border-color: var(--color-toolbox);
}

.quick-access-item.toolbox:hover {
    border-color: var(--color-toolbox-dark);
    background: linear-gradient(135deg, var(--color-toolbox) 0%, var(--color-toolbox-light) 100%);
}

.quick-access-item.key {
    border-color: var(--color-key);
}

.quick-access-item.key:hover {
    border-color: var(--color-key-dark);
    background: linear-gradient(135deg, var(--color-key) 0%, var(--color-key-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 快捷入口按钮的不同颜色 */
.quick-access-item.yikong {
    border-color: var(--color-yikong);
}

.quick-access-item.yikong:hover {
    border-color: var(--color-yikong-dark);
    background: linear-gradient(135deg, var(--color-yikong) 0%, var(--color-yikong-light) 100%);
}

.quick-access-item.adb {
    border-color: var(--color-adb);
}

.quick-access-item.adb:hover {
    border-color: var(--color-adb-dark);
    background: linear-gradient(135deg, var(--color-adb) 0%, var(--color-adb-light) 100%);
}

.quick-access-item.toolbox {
    border-color: var(--color-toolbox);
}

.quick-access-item.toolbox:hover {
    border-color: var(--color-toolbox-dark);
    background: linear-gradient(135deg, var(--color-toolbox) 0%, var(--color-toolbox-light) 100%);
}

.quick-access-item.key {
    border-color: var(--color-key);
}

.quick-access-item.key:hover {
    border-color: var(--color-key-dark);
    background: linear-gradient(135deg, var(--color-key) 0%, var(--color-key-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 快捷入口按钮的不同颜色 */
.quick-access-item.yikong {
    border-color: var(--color-yikong);
}

.quick-access-item.yikong:hover {
    border-color: var(--color-yikong-dark);
    background: linear-gradient(135deg, var(--color-yikong) 0%, var(--color-yikong-light) 100%);
}

.quick-access-item.adb {
    border-color: var(--color-adb);
}

.quick-access-item.adb:hover {
    border-color: var(--color-adb-dark);
    background: linear-gradient(135deg, var(--color-adb) 0%, var(--color-adb-light) 100%);
}

.quick-access-item.toolbox {
    border-color: var(--color-toolbox);
}

.quick-access-item.toolbox:hover {
    border-color: var(--color-toolbox-dark);
    background: linear-gradient(135deg, var(--color-toolbox) 0%, var(--color-toolbox-light) 100%);
}

.quick-access-item.key {
    border-color: var(--color-key);
}

.quick-access-item.key:hover {
    border-color: var(--color-key-dark);
    background: linear-gradient(135deg, var(--color-key) 0%, var(--color-key-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 快捷入口按钮的不同颜色 */
.quick-access-item.yikong {
    border-color: var(--color-yikong);
}

.quick-access-item.yikong:hover {
    border-color: var(--color-yikong-dark);
    background: linear-gradient(135deg, var(--color-yikong) 0%, var(--color-yikong-light) 100%);
}

.quick-access-item.adb {
    border-color: var(--color-adb);
}

.quick-access-item.adb:hover {
    border-color: var(--color-adb-dark);
    background: linear-gradient(135deg, var(--color-adb) 0%, var(--color-adb-light) 100%);
}

.quick-access-item.toolbox {
    border-color: var(--color-toolbox);
}

.quick-access-item.toolbox:hover {
    border-color: var(--color-toolbox-dark);
    background: linear-gradient(135deg, var(--color-toolbox) 0%, var(--color-toolbox-light) 100%);
}

.quick-access-item.key {
    border-color: var(--color-key);
}

.quick-access-item.key:hover {
    border-color: var(--color-key-dark);
    background: linear-gradient(135deg, var(--color-key) 0%, var(--color-key-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* 出口车型车机改语言 - 单独一行样式 */
.single-quick-access {
    margin-bottom: 20px;
}

.quick-access-item.language {
    border-color: var(--color-language);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quick-access-item.language:hover {
    border-color: var(--color-language-dark);
    background: linear-gradient(135deg, var(--color-language) 0%, var(--color-language-light) 100%);
}

/* ==================== 易控车联横幅 ==================== */
.yikong-banner {
    background: var(--yikong-gradient);
    border-radius: 16px;
    padding: 20px 24px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.yikong-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.yikong-content {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    position: relative;
    z-index: 1;
}

.yikong-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.yikong-text h3 {
    color: white;
    font-size: 20px;
    margin-bottom: 6px;
    font-weight: 600;
}

.yikong-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    line-height: 1.4;
}

.yikong-actions {
    position: relative;
    z-index: 1;
}

/* ==================== 主下载区 ==================== */
.main-download {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 12px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all var(--transition-normal);
}

/* 清风车机助手卡片悬停效果 */
.main-download:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-dark);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.main-download:hover .download-info h2,
.main-download:hover .download-info .version,
.main-download:hover .download-info .description {
    color: white;
}

/* 避免图标区域受到悬停效果影响 */
.main-download:hover .download-icon {
    filter: brightness(1.2);
}

.download-header {
    display: flex;
    gap: 16px;
    align-items: center;
    flex: 1;
}

.download-icon {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 2;
}

.download-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.download-info {
    flex: 1;
}

.download-info h2 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.download-info .version {
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    background: rgba(76, 175, 80, 0.1);
    padding: 3px 10px;
    border-radius: 6px;
    display: inline-block;
}

[data-theme="dark"] .download-info .version {
    background: rgba(76, 175, 80, 0.2);
}

.download-info .description {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.download-buttons {
    display: flex;
    flex-direction: row;
    gap: 12px;
    flex-shrink: 0;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: 0;
    /* 确保在PC端也是圆形效果 */
    border-radius: 50% !important;
}

.btn:active::before {
    width: 100%;
    height: 100%;
    /* 强制保持圆形 */
    border-radius: 50% !important;
}

.btn {
    z-index: 1;
}

.btn-label, .btn-badge, .btn-hint {
    position: relative;
    z-index: 2;
}

.btn-primary {
    background: white;
    color: #FF6B6B;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

.btn-success-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-success-outline:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    border-color: var(--color-primary-dark);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 10px 20px;
    font-size: 15px;
    flex-direction: row;
    gap: 8px;
    white-space: nowrap;
}

.btn-block {
    width: 100%;
}

.btn-label {
    font-size: 15px;
    position: relative;
    z-index: 2;
}

.btn-badge {
    background: #FFD700;
    color: #2C3E50;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    position: relative;
    z-index: 2;
    font-weight: 700;
}

.btn-hint {
    font-size: 11px;
    opacity: 0.75;
    position: relative;
    z-index: 2;
    margin-left: 4px;
}

/* 移动端触摸优化 */
@media (max-width: 768px) {
    /* 禁用所有默认的点击高亮效果 */
    * {
        -webkit-tap-highlight-color: transparent !important;
        tap-highlight-color: transparent !important;
    }
    
    .btn {
        -webkit-tap-highlight-color: transparent !important;
        tap-highlight-color: transparent !important;
        touch-action: manipulation;
        overflow: hidden;
    }
    
    .floating-contact {
        -webkit-tap-highlight-color: transparent !important;
        tap-highlight-color: transparent !important;
        touch-action: manipulation;
    }
    
    /* 完全禁用波纹效果 */
    .btn::before, .floating-contact::before {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
    
    /* 禁用波纹效果的激活状态 */
    .btn:active::before, .floating-contact:active::before {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
    
    .btn:active, .floating-contact:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
        /* 确保没有其他视觉反馈 */
        background-color: inherit !important;
        box-shadow: none !important;
    }
}

/* ==================== 图片展示区 ==================== */
.image-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.showcase-item {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.showcase-item h3 {
    color: var(--color-danger);
    font-size: 18px;
    margin-bottom: 16px;
}

.showcase-img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 12px;
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.showcase-img:hover {
    transform: scale(1.02);
}

/* ==================== 折叠区域 ==================== */
.collapse-section {
    background: var(--bg-card);
    border-radius: 16px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.collapse-header {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    transition: background var(--transition-fast);
}

.collapse-header:hover {
    background: var(--bg-primary);
}

.collapse-header h3 {
    font-size: 18px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.collapse-icon {
    display: inline-block;
    transition: transform var(--transition-normal);
    font-size: 14px;
}

.collapse-header.active .collapse-icon {
    transform: rotate(90deg);
}

.collapse-count {
    color: var(--text-hint);
    font-size: 14px;
}

.collapse-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.collapse-content.show {
    max-height: 3000px;
}

/* ==================== 工具网格 ==================== */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    padding: 24px;
}

.tool-item {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.tool-item:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.tool-info {
    flex: 1;
    min-width: 0;
}

.tool-info h4 {
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tool-info p {
    font-size: 12px;
    color: var(--text-hint);
}

.tool-download {
    background: var(--color-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.tool-download:hover {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

/* ==================== 地图说明 ==================== */
.map-notice-content {
    padding: 24px;
}

.map-notice-img {
    width: 100%;
    max-width: 400px;
    display: block;
    margin: 0 auto 20px;
    border-radius: 12px;
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.map-notice-img:hover {
    transform: scale(1.02);
}

.map-notice-text p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 16px;
}

/* ==================== 弹窗 ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    animation: fadeIn var(--transition-normal);
}

.modal.show {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 32px;
    max-width: 400px;
    width: 90%;
    position: relative;
    animation: slideUp 0.4s ease;
    box-shadow: var(--shadow-lg);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-primary);
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-danger);
    color: white;
    transform: rotate(90deg);
}

.contact-modal h3 {
    text-align: center;
    color: var(--text-primary);
    font-size: 24px;
    margin-bottom: 24px;
}

.qrcode-container {
    text-align: center;
    margin-bottom: 20px;
}

.qrcode-img {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    cursor: pointer;
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.qrcode-img:hover {
    transform: scale(1.05);
}

.wechat-id {
    text-align: center;
    margin-bottom: 20px;
    font-size: 18px;
    color: var(--text-secondary);
}

.wechat-number {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 20px;
    cursor: pointer;
}

.modal-hint {
    text-align: center;
    color: var(--text-hint);
    font-size: 13px;
    margin-top: 12px;
}

/* ==================== Toast提示 ==================== */
.toast {
    position: fixed;
    top: 90px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 15px;
    z-index: 3000;
    opacity: 0;
    transition: all var(--transition-normal);
    white-space: nowrap;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

[data-theme="dark"] .toast {
    background: rgba(255, 255, 255, 0.9);
    color: #1A1A1A;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 992px) {
    .quick-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .tool-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 12px;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }
    
    .header-content {
        padding: 10px 16px;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
    }
    
    .floating-contact {
        width: 50px;
        height: 50px;
        right: 16px;
        top: 25vh;
    }
    
    .floating-contact-icon {
        width: 50px;
        height: 50px;
        position: relative;
        z-index: 1;
    }
    
    .contact-tooltip {
        right: 60px;
        font-size: 13px;
        padding: 8px 12px;
    }
    
    .contact-tooltip::after {
        border-width: 6px 0 6px 6px;
        right: -4px;
    }
    
    .container {
        padding: 16px;
    }
    
    .notice-card {
        flex-direction: column;
        text-align: center;
        padding: 16px;
    }
    
    .secondary-download {
        padding: 16px;
        flex-direction: column;
        align-items: stretch;
    }
    
    .secondary-download .download-header {
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }
    
    .secondary-download .download-icon {
        width: 56px;
        height: 56px;
    }
    
    .secondary-download .download-info h2 {
        font-size: 18px;
    }
    
    .secondary-download .download-info .description {
        font-size: 12px;
    }
    
    .secondary-download .download-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .secondary-download .btn-large {
        width: 100%;
    }
    
    .quick-access-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .main-download-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .quick-access-item {
        padding: 12px 10px;
        min-height: 60px;
    }
    
.quick-access-item {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
}
    
    .quick-access-item h2 {
        font-size: 16px;
        line-height: 1.3;
    }
    
    .main-download {
        padding: 16px;
        flex-direction: column;
        align-items: stretch;
    }
    
    .download-header {
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }
    
    .download-icon {
        width: 56px;
        height: 56px;
    }
    
    .download-info h2 {
        font-size: 18px;
    }
    
    .download-info .version {
        font-size: 12px;
        padding: 2px 8px;
    }
    
    .download-info .description {
        font-size: 12px;
    }
    
    .download-buttons {
        flex-direction: row;
        width: 100%;
        gap: 8px;
    }
    
    .btn-large {
        flex: 1;
        padding: 12px 16px;
    }
    
    .image-showcase {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .tool-grid {
        grid-template-columns: 1fr;
        padding: 16px;
    }
    
    .modal-content {
        padding: 24px;
        width: 95%;
    }
    
    .qrcode-img {
        width: 180px;
        height: 180px;
    }
}

@media (max-width: 480px) {
    .download-icon {
        width: 48px;
        height: 48px;
    }
    
    .download-info h2 {
        font-size: 16px;
    }
    
    .btn-large {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .btn-label {
        font-size: 13px;
    }
    
    .btn-badge {
        font-size: 10px;
        padding: 1px 5px;
    }
    
    .btn-hint {
        font-size: 10px;
    }
    
    /* 移动端单独一行的快捷入口 */
    .single-quick-access {
        margin-bottom: 16px;
    }
    
    .single-quick-access .quick-access-item {
        width: 100%;
        padding: 12px 10px;
        min-height: 60px;
    }
}

/* ==================== 图片查看器 ==================== */
.image-viewer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2500;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}

.image-viewer.show {
    display: flex;
}

.image-viewer img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
}