/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 浅色主题（默认） */
:root {
    /* 主色调 */
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #6366f1;
    --accent-color: #06b6d4;
    --accent-hover: #0891b2;
    
    /* 文本颜色 */
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --text-inverse: #ffffff;
    
    /* 背景颜色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-card: #ffffff;
    --bg-card-hover: #f9fafb;
    --bg-header: #ffffff;
    
    /* 边框颜色 */
    --border-primary: #e5e7eb;
    --border-secondary: #d1d5db;
    --border-focus: #4f46e5;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 状态颜色 */
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 20px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 80px;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 深色主题 */
[data-theme="dark"] {
    --primary-color: #6366f1;
    --primary-hover: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --accent-hover: #22d3ee;
    
    --text-primary: #f9fafb;
    --text-secondary: #e5e7eb;
    --text-tertiary: #d1d5db;
    --text-inverse: #1f2937;
    
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --bg-card: #1f2937;
    --bg-card-hover: #374151;
    --bg-header: #111827;
    
    --border-primary: #374151;
    --border-secondary: #4b5563;
    --border-focus: #6366f1;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background: var(--bg-secondary);
    min-height: 100vh;
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    position: relative;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

/* 域名水印 */
.watermark {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
    font-size: 120px;
    font-weight: 900;
    color: var(--text-tertiary);
    opacity: 0.03;
    z-index: 0;
    pointer-events: none;
    white-space: nowrap;
    user-select: none;
    letter-spacing: 8px;
    transition: opacity var(--transition-base), color var(--transition-base);
}

[data-theme="dark"] .watermark {
    opacity: 0.05;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .watermark {
        font-size: 80px;
        letter-spacing: 4px;
    }
}

@media (max-width: 480px) {
    .watermark {
        font-size: 60px;
        letter-spacing: 2px;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* 顶部工具栏 */
.top-toolbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid var(--border-primary);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    padding: var(--spacing-md) var(--spacing-lg);
    transition: background var(--transition-base);
}

[data-theme="dark"] .top-toolbar {
    background: rgba(17, 24, 39, 0.8);
}

.toolbar-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.toolbar-left {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* 工具栏中的平台名称 */
.platform-name-toolbar {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: 0.5px;
    transition: all var(--transition-base);
}

/* 主题切换按钮 */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-primary);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    font-size: 20px;
    position: relative;
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.2) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.theme-toggle:hover::before {
    width: 60px;
    height: 60px;
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
    transform: translateY(-2px) scale(1.05);
}

.theme-toggle:active {
    transform: translateY(0) scale(1);
}

.theme-icon {
    display: block;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.theme-toggle:hover .theme-icon {
    transform: rotate(15deg) scale(1.1);
}

[data-theme="dark"] .theme-toggle::before {
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
}

[data-theme="dark"] .theme-toggle:hover {
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

/* 语言选择器 */
.lang-selector {
    position: relative;
}

.lang-select {
    padding: 8px 16px;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    outline: none;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234b5563' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.lang-select:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.lang-select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.lang-select option {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: var(--spacing-sm);
}

/* Banner和内容区域需要为顶部工具栏留出空间 */
.banner-section {
    margin-top: 80px;
}

/* Banner轮播 */
.banner-section {
    padding: 0;
    background: transparent;
    position: relative;
    z-index: 1;
    margin-top: 80px;
    width: 100%;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    background: var(--bg-card);
    margin: 0;
    padding: 0;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-slide.active {
    opacity: 1;
    z-index: 1;
}

.banner-slide a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    max-width: 100%;
    max-height: 100%;
}

.banner-pagination-container {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    z-index: 10;
    pointer-events: none;
}

.banner-pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    pointer-events: auto;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .banner-pagination {
    background: rgba(17, 24, 39, 0.9);
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-secondary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
}

.banner-dot:hover {
    background: var(--primary-color);
    transform: scale(1.3);
    border-color: var(--primary-color);
}

.banner-dot.active {
    background: var(--primary-color);
    width: 32px;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.4);
    border-color: var(--primary-color);
}

/* Banner导航按钮 - 已隐藏 */
.banner-prev,
.banner-next {
    display: none !important;
}

/* 平台列表 */
.platform-section {
    padding: var(--spacing-lg) 0 var(--spacing-3xl) 0;
    background: transparent;
    position: relative;
    z-index: 1;
}

.section-title {
    text-align: center;
    font-size: 42px;
    font-weight: 800;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-primary);
    letter-spacing: 1px;
    line-height: 1.2;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    padding: 0 var(--spacing-md);
}

.platform-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.03);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100%;
}

.platform-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(79, 70, 229, 0.15);
    border-color: var(--primary-color);
    background: var(--bg-card-hover);
}

.platform-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
    border-bottom: 1px solid var(--border-primary);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
    min-width: 0;
    gap: var(--spacing-xs);
}

.platform-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.3px;
    flex: 1;
    line-height: 1.4;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.platform-badge {
    padding: 4px 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-inverse);
    border-radius: var(--radius-md);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
    flex-shrink: 0;
    white-space: nowrap;
    line-height: 1.2;
}

.platform-url-container {
    padding: var(--spacing-sm) var(--spacing-md);
    flex: 1;
    min-width: 0;
    background: var(--bg-card);
}

.platform-url-label {
    font-size: 10px;
    color: var(--text-tertiary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.platform-url {
    font-size: 12px;
    color: var(--text-secondary);
    word-break: break-all;
    font-family: 'Courier New', 'Monaco', monospace;
    line-height: 1.5;
}

.platform-url .url-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-color);
    text-decoration: none;
    transition: all var(--transition-base);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.15);
    max-width: 100%;
    overflow: hidden;
}

.platform-url .url-link:hover {
    color: var(--primary-color);
    background: rgba(79, 70, 229, 0.1);
    border-color: var(--primary-color);
    transform: translateX(2px);
}

.url-icon {
    font-size: 12px;
    opacity: 0.8;
    flex-shrink: 0;
}

.url-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.speed-test {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    min-width: 0;
}

.speed-result {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    flex: 1;
    min-width: 0;
}

.speed-icon {
    font-size: 14px;
    opacity: 0.7;
    flex-shrink: 0;
}

.speed-label {
    color: var(--text-tertiary);
    font-weight: 500;
    font-size: 11px;
    flex-shrink: 0;
}

.speed-value {
    color: var(--text-secondary);
    font-weight: 700;
    min-width: 50px;
    flex-shrink: 0;
}

.speed-result.testing .speed-value {
    color: var(--info-color);
    animation: pulse 1.5s ease-in-out infinite;
}

.speed-result.success .speed-value {
    color: var(--success-color);
}

.speed-result.error .speed-value {
    color: var(--error-color);
}

.speed-result.maintenance .speed-value {
    color: var(--warning-color);
    font-weight: 700;
}

.speed-test-btn.visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 13px;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.25);
    white-space: nowrap;
    letter-spacing: 0.2px;
    flex-shrink: 0;
}

.speed-test-btn.visit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
    background: linear-gradient(135deg, var(--primary-hover), var(--secondary-color));
}

.speed-test-btn.visit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.speed-test-btn.visit-btn:disabled,
.speed-test-btn.visit-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-icon {
    font-size: 14px;
    font-weight: bold;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 维护中的平台卡片样式 */
.platform-card.platform-maintenance {
    opacity: 0.7;
    position: relative;
}

.platform-card.platform-maintenance::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.05);
    pointer-events: none;
    border-radius: var(--radius-lg);
}

[data-theme="dark"] .platform-card.platform-maintenance::after {
    background: rgba(0, 0, 0, 0.2);
}

.platform-card.platform-maintenance:hover {
    transform: none;
    cursor: not-allowed;
}

.visit-btn.disabled,
.visit-btn:disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    pointer-events: none;
}

.url-link[data-disabled="true"] {
    pointer-events: none !important;
    opacity: 0.5 !important;
    cursor: not-allowed !important;
}

/* 客服信息 */
.service-section {
    padding: var(--spacing-2xl) 0;
    background: transparent;
    position: relative;
    z-index: 1;
}

/* 客服信息 - 右下角浮动按钮组 */
.service-section.service-float {
    position: fixed;
    right: var(--spacing-lg);
    bottom: var(--spacing-lg);
    z-index: 999;
    padding: 0;
    width: auto;
}

.service-float-container {
    background: transparent;
    padding: 0;
}

.service-section.service-float .service-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: 0;
    align-items: flex-end;
}

/* 客服按钮项 */
.service-section.service-float .service-item {
    width: 60px;
    height: 60px;
    padding: 0;
    margin: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: serviceFadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.service-section.service-float .service-item:nth-child(1) { 
    animation-delay: 0.1s;
}
.service-section.service-float .service-item:nth-child(2) { 
    animation-delay: 0.2s;
}
.service-section.service-float .service-item:nth-child(3) { 
    animation-delay: 0.3s;
}
.service-section.service-float .service-item:nth-child(4) { 
    animation-delay: 0.4s;
}
.service-section.service-float .service-item:nth-child(5) { 
    animation-delay: 0.5s;
}
.service-section.service-float .service-item:nth-child(6) { 
    animation-delay: 0.6s;
}

.service-section.service-float .service-item .service-label {
    display: none;
}

.service-section.service-float .service-item .service-value {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    font-size: 0;
}

/* 客服按钮样式 */
.service-section.service-float .service-item .service-value a,
.service-section.service-float .service-item .service-value {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

[data-theme="dark"] .service-section.service-float .service-item .service-value a,
[data-theme="dark"] .service-section.service-float .service-item .service-value {
    background: var(--bg-card);
    border-color: var(--border-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* 按钮背景光效 */
.service-section.service-float .service-item .service-value::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.service-section.service-float .service-item:hover .service-value::before {
    width: 120px;
    height: 120px;
}

[data-theme="dark"] .service-section.service-float .service-item .service-value::before {
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
}

/* 客服图标 */
.service-section.service-float .service-item .service-icon {
    font-size: 26px;
    line-height: 1;
    display: block;
    position: relative;
    z-index: 1;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 悬停效果 */
.service-section.service-float .service-item:hover .service-value {
    transform: translateY(-4px) scale(1.05);
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.25), 0 4px 12px rgba(79, 70, 229, 0.15);
    background: var(--bg-card-hover);
}

[data-theme="dark"] .service-section.service-float .service-item:hover .service-value {
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3), 0 4px 12px rgba(99, 102, 241, 0.2);
}

.service-section.service-float .service-item:hover .service-icon {
    transform: scale(1.15);
}

/* 动画 */
@keyframes serviceFadeIn {
    from {
        opacity: 0;
        transform: translateX(20px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.service-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-color);
    word-break: break-all;
}

.service-value a {
    color: var(--accent-color);
    text-decoration: none;
    transition: all var(--transition-base);
    border-bottom: 1px solid transparent;
}

.service-value a:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* 底部图片 */
.footer {
    background: transparent;
    position: relative;
    z-index: 1;
    width: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.footer-images {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    width: 100%;
    margin: 0;
}

/* 版权信息 */
.footer-copyright {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--spacing-sm) 0;
    margin-top: 0;
    margin-bottom: 0;
}

.footer-copyright .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
    margin-bottom: 0;
}

.copyright-text {
    font-size: 14px;
    color: var(--text-tertiary);
    margin: 0;
    padding: 0;
    letter-spacing: 0.3px;
    line-height: 1.4;
}

.footer-image {
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    background: transparent;
    position: relative;
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
    padding: 0;
}

.footer-image:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.footer-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    opacity: 1;
    transition: opacity 0.3s ease;
    margin: 0;
    padding: 0;
}

.footer-image:hover img {
    opacity: 0.95;
}

/* 加载提示 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    color: var(--text-primary);
    transition: background-color var(--transition-base);
}

[data-theme="dark"] .loading {
    background: rgba(17, 24, 39, 0.95);
}

.loading.hidden {
    display: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-primary);
    border-top-color: var(--primary-color);
    border-right-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.loading p {
    font-size: 15px;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 屏幕阅读器隐藏类 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 错误提示 */
.error-toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    max-width: 90%;
    width: 400px;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.error-toast-content {
    background: var(--error-color);
    backdrop-filter: blur(20px);
    color: var(--text-inverse);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.error-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.error-message {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
}

.error-close {
    background: transparent;
    border: none;
    color: var(--text-inverse);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
    line-height: 1;
}

.error-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .top-toolbar {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .toolbar-container {
        gap: var(--spacing-xs);
    }

    .toolbar-left {
        flex: 1;
        min-width: 0;
    }

    .toolbar-right {
        gap: var(--spacing-xs);
        flex-shrink: 0;
    }

    .platform-name-toolbar {
        font-size: 18px;
        max-width: 200px;
    }

    .theme-toggle {
        width: 38px;
        height: 38px;
        font-size: 18px;
    }

    .lang-select {
        font-size: 12px;
        padding: 6px 12px;
        padding-right: 32px;
    }

    .banner-section {
        margin-top: 70px;
        width: 100vw;
        margin-left: calc(-50vw + 50%);
        margin-right: calc(-50vw + 50%);
        position: relative;
        left: 0;
        right: 0;
    }

    .banner-slider {
        height: 350px;
        width: 100%;
    }

    .banner-slide img {
        object-fit: cover;
        object-position: center;
    }

    .banner-pagination-container {
        bottom: var(--spacing-md);
    }

    .banner-pagination {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .section-title {
        font-size: 32px;
        margin-bottom: var(--spacing-xl);
    }

    .platform-section {
        padding: var(--spacing-sm) 0 var(--spacing-xl) 0;
    }

    .service-section {
        padding: var(--spacing-xl) 0;
    }

    /* 移动端：客服信息改为底部固定，横向排列 */
    .service-section.service-float {
        right: var(--spacing-md);
        bottom: 50px; /* 调整位置，避免与底部固定的版权信息重叠 */
    }

    .service-section.service-float .service-item {
        width: 54px;
        height: 54px;
    }

    .service-section.service-float .service-item .service-value,
    .service-section.service-float .service-item .service-value a {
        width: 54px;
        height: 54px;
    }

    .service-section.service-float .service-item .service-icon {
        font-size: 24px;
    }

    .platform-grid {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: 0 var(--spacing-xs);
    }

    .platform-card {
        display: flex;
        flex-direction: row;
        align-items: center;
        padding: var(--spacing-md) var(--spacing-sm);
        border-radius: var(--radius-md);
        min-height: auto;
        gap: var(--spacing-sm);
    }

    .platform-card::before {
        display: none;
    }

    .platform-card:hover {
        transform: none;
    }

    .platform-header {
        flex: 1;
        padding: 0;
        border-bottom: none;
        background: transparent;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        min-width: 0;
    }

    .platform-name {
        font-size: 18px;
        font-weight: 800;
        line-height: 1.3;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }

    .platform-badge {
        padding: 2px 8px;
        font-size: 9px;
        border-radius: var(--radius-sm);
    }

    .platform-url-container {
        display: none;
    }

    .speed-test {
        flex: 0 0 auto;
        padding: 0;
        flex-direction: row;
        gap: var(--spacing-sm);
        align-items: center;
        background: transparent;
        border-top: none;
        border-radius: 0;
        min-width: 110px;
        justify-content: flex-end;
    }

    .speed-result {
        font-size: 11px;
        gap: 4px;
        min-width: 50px;
        flex-shrink: 0;
    }

    .speed-icon {
        font-size: 13px;
    }

    .speed-label {
        display: none;
    }

    .speed-value {
        font-size: 11px;
        font-weight: 700;
        min-width: auto;
    }

    .speed-test-btn.visit-btn {
        padding: 10px 16px;
        font-size: 13px;
        white-space: nowrap;
        flex-shrink: 0;
        min-width: 70px;
    }

    .btn-icon {
        font-size: 14px;
    }

    .platform-card.platform-maintenance {
        opacity: 0.65;
    }

    .service-list {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-xs);
    }

    .service-item {
        padding: var(--spacing-md);
    }

    /* 小屏手机：客服信息进一步优化 */
    .service-section.service-float {
        right: var(--spacing-sm);
        bottom: 50px; /* 调整位置，避免与底部固定的版权信息重叠 */
    }

    .service-section.service-float .service-item {
        width: 50px;
        height: 50px;
    }

    .service-section.service-float .service-item .service-value,
    .service-section.service-float .service-item .service-value a {
        width: 50px;
        height: 50px;
    }

    .service-section.service-float .service-item .service-icon {
        font-size: 22px;
    }

    .footer-images {
        gap: 0;
        padding: 0;
    }

    .banner-prev,
    .banner-next {
        width: 36px;
        height: 36px;
        font-size: 20px;
    }

    .banner-prev {
        left: var(--spacing-xs);
    }

    .banner-next {
        right: var(--spacing-xs);
    }

    .error-toast {
        width: 90%;
        max-width: 320px;
        top: 60px;
    }

    .error-toast-content {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 13px;
    }

    /* 手机端：版权信息固定在底部 */
    .footer-copyright {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        z-index: 1000;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-primary);
        padding: var(--spacing-xs) 0;
    }
    
    /* 为底部固定版权信息预留空间，避免内容被遮挡 */
    body {
        padding-bottom: 35px;
    }
}

@media (max-width: 480px) {
    .top-toolbar {
        padding: var(--spacing-xs);
    }

    .platform-name-toolbar {
        font-size: 14px;
        max-width: 150px;
    }

    .banner-section {
        margin-top: 40px;
        width: 100vw;
        margin-left: calc(-50vw + 50%);
        margin-right: calc(-50vw + 50%);
        position: relative;
        left: 0;
        right: 0;
    }

    .banner-slider {
        height: 210px;
        width: 100%;
    }

    .banner-slide img {
        object-fit: cover;
        object-position: center;
        background: var(--bg-card);
    }

    .banner-pagination-container {
        bottom: var(--spacing-sm);
    }

    .banner-pagination {
        padding: var(--spacing-xs) var(--spacing-xs);
        gap: var(--spacing-xs);
    }

    .banner-dot {
        width: 10px;
        height: 10px;
    }

    .banner-dot.active {
        width: 24px;
    }

    .section-title {
        font-size: 28px;
        margin-bottom: var(--spacing-lg);
    }

    .platform-section {
        padding: var(--spacing-xs) 0 var(--spacing-lg) 0;
    }

    .platform-card {
        padding: var(--spacing-sm) var(--spacing-xs);
        gap: var(--spacing-xs);
        min-height: 50px;
    }

    .platform-name {
        font-size: 16px;
    }

    .platform-badge {
        padding: 2px 6px;
        font-size: 8px;
    }

    .speed-result {
        font-size: 10px;
        min-width: 45px;
    }

    .speed-value {
        font-size: 10px;
    }

    .speed-test-btn.visit-btn {
        padding: 9px 14px;
        font-size: 12px;
        min-width: 65px;
    }

    .speed-test {
        min-width: 100px;
    }

    .service-item {
        padding: var(--spacing-sm);
    }

    .footer-images {
        gap: 0;
        padding: 0;
    }

    .footer-copyright {
        padding: var(--spacing-xs) 0;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        z-index: 1000;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-primary);
    }

    .copyright-text {
        font-size: 11px;
    }
    
    /* 为底部固定版权信息预留空间，避免内容被遮挡 */
    body {
        padding-bottom: 40px;
    }

    .theme-toggle {
        width: 34px;
        height: 34px;
        font-size: 16px;
    }

    .lang-select {
        font-size: 11px;
        padding: 5px 10px;
        padding-right: 28px;
    }
}