/* 爱卡云 - 最终增强优化 */

/* 全局字体优化 */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif !important;
    color: #1d2129 !important;
    background: #f5f7fa !important;
}

/* 链接优化 */
a {
    text-decoration: none !important;
    transition: color 0.2s ease !important;
}

/* 图片优化 */
img {
    max-width: 100% !important;
    height: auto !important;
}

/* 容器优化 */
.container {
    max-width: 1280px !important;
    margin: 0 auto !important;
    padding: 0 24px !important;
}

/* 导航栏优化 */
.aikayun-header {
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;
    background: rgba(255,255,255,0.85) !important;
    backdrop-filter: blur(16px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(16px) saturate(180%) !important;
    border-bottom: 1px solid rgba(0,0,0,0.06) !important;
    transition: all 0.3s ease !important;
}

.aikayun-nav {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    height: 68px !important;
}

.aikayun-logo img {
    height: 40px !important;
    max-height: 40px !important;
}

.aikayun-menu {
    display: flex !important;
    align-items: center !important;
    gap: 4px !important;
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.aikayun-menu > li {
    position: relative !important;
}

.aikayun-menu > li > a {
    display: block !important;
    padding: 10px 18px !important;
    font-size: 15px !important;
    font-weight: 500 !important;
    color: #1d2129 !important;
    border-radius: 6px !important;
    transition: all 0.2s ease !important;
}

.aikayun-menu > li > a:hover {
    color: #0052d9 !important;
    background: rgba(0,82,217,0.08) !important;
}

.aikayun-dropdown {
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    min-width: 180px !important;
    background: white !important;
    border-radius: 10px !important;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12) !important;
    border: 1px solid #f2f3f5 !important;
    padding: 8px !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(10px) !important;
    transition: all 0.25s ease !important;
    z-index: 1001 !important;
}

.aikayun-menu > li:hover .aikayun-dropdown {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

.aikayun-dropdown a {
    display: block !important;
    padding: 10px 14px !important;
    font-size: 14px !important;
    color: #4e5969 !important;
    border-radius: 6px !important;
    transition: all 0.15s ease !important;
}

.aikayun-dropdown a:hover {
    background: rgba(0,82,217,0.08) !important;
    color: #0052d9 !important;
}

.aikayun-actions {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
}

/* 按钮系统 */
.btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 10px 20px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    border-radius: 8px !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    border: none !important;
    text-decoration: none !important;
}

.btn-primary {
    background: linear-gradient(135deg, #002ab1 0%, #0052d9 50%, #1466ed 100%) !important;
    color: white !important;
    box-shadow: 0 2px 8px rgba(0,82,217,0.25) !important;
}

.btn-primary:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(0,82,217,0.35) !important;
    color: white !important;
}

.btn-outline {
    background: transparent !important;
    color: #0052d9 !important;
    border: 1px solid #0052d9 !important;
}

.btn-outline:hover {
    background: #0052d9 !important;
    color: white !important;
}

.btn-ghost {
    background: transparent !important;
    color: #4e5969 !important;
}

.btn-ghost:hover {
    background: rgba(0,82,217,0.08) !important;
    color: #0052d9 !important;
}

.btn-white {
    background: white !important;
    color: #0052d9 !important;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1) !important;
}

.btn-white:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15) !important;
}

.btn-lg {
    padding: 14px 32px !important;
    font-size: 16px !important;
}

.btn-sm {
    padding: 6px 14px !important;
    font-size: 13px !important;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed !important;
    right: 24px !important;
    bottom: 24px !important;
    width: 48px !important;
    height: 48px !important;
    background: linear-gradient(135deg, #002ab1, #0052d9) !important;
    color: white !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    box-shadow: 0 4px 16px rgba(0,82,217,0.3) !important;
    transition: all 0.3s ease !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(20px) !important;
    z-index: 999 !important;
    font-size: 20px !important;
}

.back-to-top.show {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
}

.back-to-top:hover {
    transform: translateY(-4px) !important;
    box-shadow: 0 8px 24px rgba(0,82,217,0.4) !important;
}

/* 页面加载动画 */
.page-loading {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: white !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    z-index: 9999 !important;
    transition: opacity 0.5s ease !important;
}

.page-loading.hide {
    opacity: 0 !important;
    visibility: hidden !important;
}

.loading-spinner {
    width: 48px !important;
    height: 48px !important;
    border: 3px solid #f2f3f5 !important;
    border-top-color: #0052d9 !important;
    border-radius: 50% !important;
    animation: spin 0.8s linear infinite !important;
}

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

/* 焦点状态优化 */
a:focus, button:focus, input:focus, select:focus, textarea:focus {
    outline: none !important;
}

a:focus-visible, button:focus-visible {
    outline: 2px solid #0052d9 !important;
    outline-offset: 2px !important;
}

/* 打印样式 */
@media print {
    .aikayun-header, .aikayun-footer, .aside-tools, .back-to-top {
        display: none !important;
    }
    
    body {
        background: white !important;
    }
}