/* 全局重置 - 所有页面共用 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    padding-top: 70px !important;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
}


/* 在 nav-style.css 末尾添加 
body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    padding-top: 70px !important;
}
*/
/* nav-style.css - 导航栏+页脚通用样式，所有页面复用 */
:root {
    --tech-primary: #0ea5e9;
    --tech-primary-dark: #0284c7;
    --tech-purple: #8b5cf6;
    --tech-dark: #0f172a;
    --tech-card: #1e293b;
    --tech-card-border: #334155;
    --tech-text: #e2e8f0;
    --tech-text-light: #94a3b8;
    --tech-glow: rgba(14, 165, 233, 0.4);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 导航栏容器 */
.global-nav-container header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--tech-card-border);
    padding: 8px 0;
    position: fixed !important; /* 固定定位 */
    top: 0 !important;
    left: 0 !important;
    z-index: 1000 !important;
    width: 100%;
    box-sizing: border-box;
}

.global-nav-container .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.global-nav-container .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.global-nav-container .logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--tech-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.global-nav-container .logo span {
    color: #fff;
}

.global-nav-container .nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.global-nav-container .nav-links a {
    color: var(--tech-text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
    display: inline-block;
    line-height: 1;
}

.global-nav-container .nav-links a:hover {
    color: var(--tech-primary);
}

/* 下拉菜单样式 */
.global-nav-container .product-dropdown {
    position: relative;
    cursor: pointer;
    align-items: center;
    display: flex;
    height: 100%;
}

.global-nav-container .product-dropdown > a {
    padding: 5px 0;
    display: inline-block;
    line-height: 1;
}

.global-nav-container .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: 4px;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(10px);
    border: 1px solid var(--tech-card-border);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    min-width: 160px;
    padding: 8px 0;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
}

.global-nav-container .dropdown-menu a {
    display: block;
    padding: 10px 16px;
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
}

.global-nav-container .dropdown-menu a:hover {
    background-color: rgba(14, 165, 233, 0.15);
    color: var(--tech-primary);
}

.global-nav-container .product-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    display: block;
}

/* 在 nav-style.css 中 .global-nav-container .logo 样式后添加 */
.global-nav-container .logo-img {
    /* 匹配原文字logo的尺寸（1.5rem ≈ 24px），可根据实际调整 */
    height: 40px; 
    width: auto; /* 保持宽高比 */
    display: block; /* 消除inline默认间距 */
    margin: 0;    /* 清除默认外边距 */
    padding: 0;   /* 清除默认内边距 */
    line-height: 1; /* 消除行高带来的间隙 */
}

/* 响应式适配 - 导航栏 */
@media (max-width: 768px) {
    .global-nav-container .nav-links {
        gap: 15px;
    }
    .global-nav-container .logo-img {
        height: 20px;
    }
}

/* -------------------------- 页脚(footer)样式 -------------------------- */
.global-footer-container footer {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--tech-card-border);
    padding: 15px 0 10px;
    margin-top: 20px;
    color: var(--tech-text-light);
}

.global-footer-container .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 页脚主容器 */
.global-footer-container .footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

/* 页脚logo区域 */
.global-footer-container .footer-logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--tech-primary);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 15px;
}

.global-footer-container .footer-logo span {
    color: #fff;
}

.global-footer-container .footer-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
    color: var(--tech-text-light);
}

/* 页脚栏目标题 */
.global-footer-container .footer-column h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tech-text);
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 8px;
}

.global-footer-container .footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: var(--tech-primary);
    border-radius: 2px;
}

/* 页脚链接列表 */
.global-footer-container .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.global-footer-container .footer-links li {
    margin-bottom: 5px;
}

.global-footer-container .footer-links a {
    color: var(--tech-text-light);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
    display: inline-block;
}

.global-footer-container .footer-links a:hover {
    color: var(--tech-primary);
    transform: translateX(3px);
}

/* 页脚社交图标 */
.global-footer-container .social-links {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.global-footer-container .social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(30, 41, 59, 0.5);
    color: var(--tech-text);
    transition: var(--transition);
    border: 1px solid transparent;
}

.global-footer-container .social-links a:hover {
    background-color: var(--tech-primary);
    color: #fff;
    border-color: var(--tech-primary);
    transform: translateY(-2px);
}

/* 页脚底部版权栏 */
.global-footer-container .footer-bottom {
    border-top: 1px solid var(--tech-card-border);
    padding-top: 10px;
    margin-top: 10px; /* 新增：与上方文字的小间距 */
    text-align: center;
    font-size: 0.85rem;
    color: var(--tech-text-light);
    line-height: 1.4; /* 新增：减小行高（默认1.6/1.8 → 1.4更紧凑） */
}

.global-footer-container .footer-bottom a {
    color: var(--tech-primary);
    text-decoration: none;
}

.global-footer-container .footer-bottom a:hover {
    text-decoration: underline;
}
/* nav-style.css 中补充页脚logo图片样式 */
.global-footer-container .footer-logo-img {
    height: 22px; /* 匹配原文字大小 */
    width: auto;
    display: block;
    margin-bottom: 15px; /* 保持与原文字logo相同的间距 */
}
/* 响应式适配 - 页脚 */
@media (max-width: 768px) {
    .global-footer-container footer {
        padding: 10px 0 8px;
        margin-top: 20px;
    }

    .global-footer-container .footer-main {
        gap: 20px;
    }

    .global-footer-container .footer-column h3 {
        font-size: 1rem;
    }

    .global-footer-container .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .global-footer-container .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .global-footer-container .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .global-footer-container .footer-desc {
        text-align: center;
    }

    .global-footer-container .footer-logo {
        display: block;
        text-align: center;
    }
    .global-footer-container .footer-logo-img {
        margin: 0 auto 15px; /* 居中显示 */
    }
}

.global-nav-container {
    flex-shrink: 0; /* 导航不压缩 */
}
.global-footer-container {
    margin-top: auto; /* 页脚自动推到底部 */
    flex-shrink: 0; /* 页脚不压缩 */
}
/* 确保内容容器占满中间空间 */
.container {
    flex-grow: 1;
}