/* Cloud Header 样式文件 */

/* 主色调变量 */
:root {
    --primary-dark: #2c3e50;
    --primary-light: #ecf0f1;
    --accent-green: #4CAF50;
    --card-white: #ffffff;
    --divider-gray: #e0e0e0;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
}

/* 导航栏主容器 - 常驻白底 */
.cloud-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 20px var(--shadow-light);
    transition: all var(--transition-fast);
}

/* 降级方案 */
@supports not (backdrop-filter: blur(15px)) {
    .cloud-header {
        background: rgba(255, 255, 255, 0.98);
    }
}

/* 进入动画 */
.cloud-header {
    animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 内容容器 */
.cloud-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 70px;
    transition: height var(--transition-fast);
}

/* Logo区域 */
.cloud-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    padding: 5px;
    transition: all var(--transition-fast);
}

.cloud-logo:hover {
    background: var(--primary-light);
    transform: scale(1.05);
}

.cloud-logo img {
    height: 30px;
    transition: all var(--transition-fast);
}

.cloud-logo .logo2 {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.cloud-logo:hover .logo1 {
    opacity: 0;
}

.cloud-logo:hover .logo2 {
    display: block;
}

/* 导航菜单 */
.cloud-nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.cloud-nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.cloud-nav-item {
    position: relative;
    margin: 0 15px;
}

.cloud-nav-link {
    display: block;
    padding: 15px 20px;
    color: #239A5B;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    border-radius: 25px;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.cloud-nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 175, 80, 0.1), transparent);
    transition: left var(--transition-medium);
}

.cloud-nav-link:hover::before {
    left: 100%;
}

.cloud-nav-link:hover {
    background: rgba(35, 154, 91, 0.1);
    color: #239A5B;
    transform: translateY(-2px);
}

/* 当前激活状态 */
.cloud-nav-item.cur .cloud-nav-link {
    background: #239A5B;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(35, 154, 91, 0.3);
}

/* 子菜单样式 */
.cloud-nav-item.has-sub::after {
    content: '▼';
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--primary-dark);
    transition: transform var(--transition-fast);
}

.cloud-nav-item.has-sub:hover::after {
    transform: translateY(-50%) rotate(180deg);
}

/* 移动端展开按钮样式 */
@media (max-width: 768px) {
    .cloud-nav-item.has-sub::after {
        content: '+';
        right: 10px;
        font-size: 18px;
        font-weight: bold;
        color: var(--primary-dark);
        transition: all var(--transition-fast);
        width: 24px;
        height: 24px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: rgba(76, 175, 80, 0.1);
        cursor: pointer;
    }

    .cloud-nav-item.has-sub:hover::after {
        background: rgba(76, 175, 80, 0.2);
        transform: translateY(-50%) scale(1.1);
    }

    .cloud-nav-item.has-sub.active::after {
        content: '−';
        background: var(--accent-green);
        color: white;
        transform: translateY(-50%) rotate(180deg);
    }
}

.cloud-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    min-width: 200px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-medium);
    z-index: 1001;
    list-style: none;
    padding: 10px 0;
    /* 允许交互，避免无法将鼠标移入子菜单 */
    pointer-events: auto;
}

/* 为不支持backdrop-filter的浏览器提供降级方案 */
@supports not (backdrop-filter: blur(15px)) {
    .cloud-submenu {
        background: rgba(255, 255, 255, 0.98);
    }
}

/* 仅当悬浮当前一级菜单项时展开其直属子菜单（桌面端） */
@media (min-width: 769px) {
    /* 顶级：悬浮 li 或 悬浮链接 都展开直属子菜单 */
    .cloud-nav-list > .cloud-nav-item:hover > .cloud-submenu,
    .cloud-nav-list > .cloud-nav-item > .cloud-nav-link:hover + .cloud-submenu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    /* 顶级：非悬浮项保持隐藏（默认） */
    .cloud-nav-list > .cloud-nav-item:not(:hover) > .cloud-submenu {
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
    }
    /* 顶级：当鼠标已进入子菜单本身时，保持展开（解决无法移入的问题） */
    .cloud-nav-list > .cloud-nav-item > .cloud-submenu:hover {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    /* 次级：悬浮 li 或 悬浮子链接 展开其下一级 */
    .cloud-submenu > .cloud-submenu-item:hover > .cloud-submenu,
    .cloud-submenu > .cloud-submenu-item > .cloud-submenu-link:hover + .cloud-submenu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    /* 次级：非悬浮项保持隐藏（默认） */
    .cloud-submenu > .cloud-submenu-item:not(:hover) > .cloud-submenu {
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
    }
    /* 次级：当鼠标已进入下一级子菜单本身时，保持展开 */
    .cloud-submenu > .cloud-submenu-item > .cloud-submenu:hover {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
}

.cloud-submenu-item {
    position: relative;
}

.cloud-submenu-link {
    display: block;
    padding: 12px 20px;
    color: var(--primary-dark);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.cloud-submenu-link:hover {
    background: rgba(35, 154, 91, 0.1);
    color: #239A5B;
    border-left-color: #239A5B;
    padding-left: 25px;
}

/* 三级及以下菜单使用浅蓝色 */
.cloud-submenu .cloud-submenu .cloud-submenu-link:hover {
    background: #E3F2FD;
    color: #1976D2;
    border-left-color: #1976D2;
}

/* 三级菜单 */
.cloud-submenu-item.has-sub .cloud-submenu {
    top: 0;
    left: 100%;
    margin-left: 5px;
}

/* 右侧功能区 */
.cloud-header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* 语言切换 */
.cloud-lang {
    position: relative;
}

.cloud-lang-toggle {
    display: flex;
    align-items: center;
    padding: 8px 15px;
    background: var(--primary-light);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    color: var(--primary-dark);
}

.cloud-lang-toggle:hover {
    background: var(--accent-green);
    color: var(--card-white);
    transform: scale(1.05);
}

.cloud-lang-icon {
    width: 16px;
    height: 16px;
    margin-right: 5px;
}

.cloud-lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--card-white);
    border-radius: 10px;
    box-shadow: 0 10px 25px var(--shadow-medium);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-medium);
    z-index: 1002;
    min-width: 120px;
    margin-top: 5px;
}

.cloud-lang:hover .cloud-lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.cloud-lang-option {
    display: block;
    padding: 10px 15px;
    color: var(--primary-dark);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-radius: 8px;
    margin: 5px;
}

.cloud-lang-option:hover {
    background: var(--primary-light);
    color: var(--accent-green);
}

/* 搜索按钮 */
.cloud-search-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-green);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.cloud-search-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 5px 15px var(--shadow-medium);
}

.cloud-search-icon {
    width: 18px;
    height: 18px;
    filter: brightness(0) invert(1);
}

/* 搜索弹窗 */
.cloud-search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    backdrop-filter: blur(5px);
}

.cloud-search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.cloud-search-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    padding: 40px;
    width: 90%;
    max-width: 600px;
    transition: all var(--transition-medium);
}

/* 为不支持backdrop-filter的浏览器提供降级方案 */
@supports not (backdrop-filter: blur(20px)) {
    .cloud-search-content {
        background: rgba(255, 255, 255, 0.98);
    }
}

.cloud-search-overlay.active .cloud-search-content {
    transform: translate(-50%, -50%) scale(1);
}

.cloud-search-form {
    position: relative;
}

.cloud-search-input {
    width: 100%;
    padding: 15px 60px 15px 20px;
    border: 2px solid var(--divider-gray);
    border-radius: 25px;
    font-size: 18px;
    outline: none;
    transition: all var(--transition-fast);
}

.cloud-search-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.cloud-search-submit {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border: none;
    background: var(--accent-green);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cloud-search-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.cloud-search-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 20px;
    color: var(--primary-dark);
    transition: all var(--transition-fast);
}

.cloud-search-close:hover {
    color: var(--accent-green);
    transform: rotate(90deg);
}

/* 移动端汉堡菜单 */
.cloud-mobile-toggle {
    display: none;
    flex-direction: column;
    width: 48px; /* 增大触控面积 */
    height: 48px; /* 增大触控面积 */
    cursor: pointer;
    justify-content: center;
    align-items: center;
    padding: 12px;
    border-radius: 8px; /* 添加圆角 */
    background: transparent;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    z-index: 1600; /* 确保在导航菜单之上 */
}

/* 添加悬浮效果 */
.cloud-mobile-toggle:hover {
    background: var(--primary-light);
    transform: scale(1.05);
}

/* 添加点击效果 */
.cloud-mobile-toggle:active {
    transform: scale(0.95);
    background: var(--divider-gray);
}

/* 汉堡条样式优化 */
.cloud-mobile-toggle span {
    width: 24px; /* 调整宽度 */
    height: 3px;
    background: var(--primary-dark);
    border-radius: 2px;
    transition: all var(--transition-medium);
    margin: 2px 0; /* 增加间距 */
    transform-origin: center;
    position: relative;
}

/* 添加微妙的阴影效果 */
.cloud-mobile-toggle span::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 175, 80, 0.2), transparent);
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.cloud-mobile-toggle:hover span::before {
    opacity: 1;
}

/* 激活状态动画优化 */
.cloud-mobile-toggle.active {
    background: var(--primary-light);
}

.cloud-mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
    background: var(--accent-green);
}

.cloud-mobile-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.cloud-mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
    background: var(--accent-green);
}

/* 添加脉冲效果（可选） */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(76, 175, 80, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(76, 175, 80, 0);
    }
}

.cloud-mobile-toggle.active {
    animation: pulse 0.6s ease-out;
}

/* 确保桌面端导航横向排列 */
@media (min-width: 769px) {
    .cloud-header-wrapper .cloud-nav {
        display: flex !important;
        align-items: center !important;
        flex: 1 !important;
        justify-content: center !important;
        flex-direction: row !important;
    }

    .cloud-header-wrapper .cloud-nav-list {
        display: flex !important;
        flex-direction: row !important;
        list-style: none !important;
        margin: 0 !important;
        padding: 0 !important;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cloud-header-content {
        padding: 0 15px;
        height: 60px;
    }

    .cloud-mobile-toggle {
        display: flex;
    }

    .cloud-nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0; /* 扩展到底部 */
        background: rgba(255, 255, 255, 0.9);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid rgba(255, 255, 255, 0.3);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 20px var(--shadow-medium);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-medium);
        /* 添加滚动功能 */
        overflow-y: auto;
        -webkit-overflow-scrolling: touch; /* iOS 平滑滚动 */
        z-index: 1500; /* 确保在其他元素之上 */
        height: calc(100vh - 60px); /* 明确设置高度 */
        max-height: calc(100vh - 60px); /* 防止超出视窗 */
    }

    /* 为不支持backdrop-filter的移动端浏览器提供降级方案 */
    @supports not (backdrop-filter: blur(20px)) {
        .cloud-nav {
            background: rgba(255, 255, 255, 0.98);
        }
    }

    .cloud-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .cloud-nav-list {
        flex-direction: column;
        width: 100%;
        /* 确保内容可以滚动 */
        min-height: fit-content;
        padding-bottom: 20px; /* 底部留白 */
    }

    .cloud-nav-item {
        margin: 5px 0;
        width: 100%;
    }

    .cloud-nav-link {
        padding: 15px;
        border-radius: 10px;
    }

    .cloud-submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--primary-light);
        margin-top: 10px;
        border-radius: 10px;
        display: none;
    }

    .cloud-nav-item.has-sub.active .cloud-submenu {
        display: block;
    }

    /* 优化右侧功能区按钮间距和尺寸 */
    .cloud-header-actions {
        gap: 8px; /* 减小间距避免误触 */
    }

    /* 调整语言切换按钮 */
    .cloud-lang-toggle {
        padding: 8px 12px; /* 增加内边距提升触控体验 */
        font-size: 14px;
        min-width: 44px; /* 确保最小触控面积 */
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 调整搜索按钮 */
    .cloud-search-btn {
        width: 44px; /* 标准触控尺寸 */
        height: 44px;
        flex-shrink: 0; /* 防止被压缩 */
    }

    /* 移动端语言切换优化 */
    .m-lang .cloud-lang-toggle {
        padding: 8px 12px;
        min-width: 44px;
        min-height: 44px;
        border-radius: 8px;
        background: var(--primary-light);
        font-weight: 500;
    }

    .cloud-search-content {
        padding: 30px 20px;
        margin: 20px;
        width: calc(100% - 40px);
    }
}

@media (max-width: 480px) {
    .cloud-header-content {
        padding: 0 10px;
    }

    .cloud-logo img {
        height: 25px;
    }

    /* 进一步优化小屏幕按钮 */
    .cloud-header-actions {
        gap: 6px; /* 更小的间距 */
    }

    .cloud-search-btn {
        width: 40px;
        height: 40px;
    }

    .cloud-search-icon {
        width: 16px;
        height: 16px;
    }

    /* 小屏幕语言按钮 */
    .cloud-lang-toggle,
    .m-lang .cloud-lang-toggle {
        padding: 6px 10px;
        min-width: 40px;
        min-height: 40px;
        font-size: 13px;
    }
}

/* 滚动动画 */
.cloud-nav-item {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.cloud-nav-item:nth-child(1) {
    animation-delay: 0.1s;
}

.cloud-nav-item:nth-child(2) {
    animation-delay: 0.2s;
}

.cloud-nav-item:nth-child(3) {
    animation-delay: 0.3s;
}

.cloud-nav-item:nth-child(4) {
    animation-delay: 0.4s;
}

.cloud-nav-item:nth-child(5) {
    animation-delay: 0.5s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* 页面跳转动画样式 */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.95) 0%, rgba(248,250,252,0.98) 100%);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition-overlay.active {
    opacity: 1;
    visibility: visible;
}

.transition-content {
    text-align: center;
    transform: translateY(20px);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition-overlay.active .transition-content {
    transform: translateY(0);
}

.loading-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid var(--accent-green, #4CAF50);
    border-radius: 50%;
    animation: spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.spinner-ring:nth-child(1) {
    animation-delay: -0.45s;
    border-top-color: var(--accent-green, #4CAF50);
}

.spinner-ring:nth-child(2) {
    animation-delay: -0.3s;
    border-top-color: rgba(76, 175, 80, 0.7);
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
}

.spinner-ring:nth-child(3) {
    animation-delay: -0.15s;
    border-top-color: rgba(76, 175, 80, 0.4);
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-size: 16px;
    color: #666;
    font-weight: 500;
    letter-spacing: 0.5px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

/* 页面淡出效果 */
body.page-transitioning {
    overflow: hidden;
}

body.page-transitioning .cloud-header,
body.page-transitioning main,
body.page-transitioning footer {
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
    opacity: 0.3;
    transform: scale(0.98);
}



/* 移动端适配 */
@media (max-width: 768px) {
    .loading-spinner {
        width: 60px;
        height: 60px;
    }
    
    .loading-text {
        font-size: 14px;
    }
    
    .transition-content {
        padding: 20px;
    }
    
    /* 移动端联系我们按钮 */
    .cloud-header-actions .cloud-contact .cloud-contact-btn {
        padding: 6px 12px !important;
        font-size: 12px !important;
    }
}