/* 全局样式 */
:root {
    --primary-color: #00d4ff;  /* 科技蓝 */
    --secondary-color: #00ff9d; /* 霓虹绿 */
    --accent-color: #7000ff;    /* 紫色点缀 */
    --text-color: #e4e4e4;
    --dark-bg: #0a0a0a;
    --card-bg: rgba(20, 20, 20, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --hover-color: rgba(255, 255, 255, 0.05);
    --gradient-primary: linear-gradient(135deg, #00d4ff, #00ff9d);
    --gradient-hover: linear-gradient(135deg, #00ff9d, #7000ff);
    --neon-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Orbitron', 'Rajdhani', sans-serif;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
    background-image: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    backdrop-filter: blur(20px);
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid #e4e4e4;
}

.nav-left {
    display: flex;
    gap: 2rem;
}

.nav-item {
    text-decoration: none;
    color: #000000;
    font-weight: 500;
    font-size: 1.1rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-item:hover::before {
    transform: scaleX(1);
}

.nav-item.active {
    background: #f0f0f0;
    border: 1px solid var(--border-color);
    box-shadow: var(--neon-shadow);
    color: #000000;
}

/* 轮播图样式 */
.carousel {
    position: relative;
    width: 100%;
    height: 400px;
    margin-top: 60px;
    overflow: hidden;
}

.carousel-inner {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
}

.carousel-item.active {
    opacity: 1;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-caption {
    position: absolute;
    bottom: 20%;
    left: 10%;
    color: #000000;
    background: rgba(255, 255, 255, 0.8);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #e4e4e4;
}

.carousel-caption h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #000000;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.carousel-caption p {
    font-size: 1.5rem;
    font-weight: 500;
    color: #000000;
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: #ffffff;
    color: #000000;
    border: 1px solid #e4e4e4;
    font-size: 2rem;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.carousel-prev { left: 20px; }
.carousel-next { right: 20px; }

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(255, 255, 255, 0.9);
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #000000;
    border: 1px solid #e4e4e4;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: #007BFF;
    box-shadow: 0 0 10px #007BFF;
}

/* 搜索框样式 */
/* 搜索框样式 */
.search-container {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.1);  /* 调整为浅色背景 */
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    margin-right: 60px;
    padding: 4px 8px;
}

.search-input {
    background: transparent;
    border: none;
    color: var(--text-color);  /* 保持为黑色 */
    padding: 0.5rem 1rem;
    width: 350px;
    font-family: inherit;
    font-size: 1rem;
}

.search-input::placeholder {
    color: rgba(0, 0, 0, 0.5);  /* 更改占位符颜色为灰色 */
}

.search-btn {
    background: transparent;
    border: none;
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.search-btn:hover {
    text-shadow: 0 0 10px var(--primary-color);
}


/* 主要内容区域布局调整 */
.notes-container {
    position: relative;
    width: 100%;
    min-height: calc(100vh - 60px - 400px); /* 减去导航栏和轮播图的高度 */
    margin-top: 20px;
}

/* 右侧内容区域布局 */
.main-content {
    width: 100%;
    margin-left: 0;
    transition: margin-left 0.3s ease;
}

.main-left:hover ~ .main-content {
    margin-left: 200px;
}

/* 自定义滚动条样式 */
.main-content::-webkit-scrollbar {
    width: 8px;
}

.main-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.main-content::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

/* 左侧导航栏样式 */
.main-left {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    transform: translateX(-100%);
    z-index: 100;
}

.main-left:hover,
.main-left.show {
    transform: translateX(0);
}

/* 添加一个小标签提示用户有隐藏菜单 */
.main-left::after {
    content: '≡';
    position: absolute;
    right: -30px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 8px;
    border-radius: 0 4px 4px 0;
    box-shadow: 2px 0 4px rgba(0,0,0,0.1);
    cursor: pointer;
}

.main-left h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid var(--secondary-color);
    color: #000000;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.category-list {
    list-style: none;
}

.category-list li {
    cursor: pointer;
    padding: 0.8rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.category-list li:hover {
    background-color: #f0f0f0;
}

.category-list li.active {
    background-color: #007bff;
    color: white;
}

/* 内容区块共同样式 */
.content-section {
    min-height: 400px;
    background: #ffffff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    margin-bottom: 2rem;
    color: #000000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.content-section.active {
    display: block;
    opacity: 1;
}

/* 内容区域的过渡效果 */
.content-section {
    transition: all 0.5s ease;
    opacity: 0;
}

.content-section.active {
    display: block;
    opacity: 1;
}

/* 添加滚动平滑效果 */
html {
    scroll-behavior: smooth;
}

/* 优化内容区域的过渡效果 */
.content-section {
    transition: opacity 0.3s ease-in-out;
    will-change: opacity;
}

/* 确保激活状态的内容区域正确显示 */
.content-section.active {
    display: block;
    opacity: 1;
}

/* 内容区块标题样式 */
.content-section h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--secondary-color);
    color: #000000;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* 内容网格布局 */
.content-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 1rem;
}

/* 内容卡片样式优化 */
.content-card {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #f5f5f5;
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    color: #000000;
    position: relative;
    overflow: hidden;
}

.content-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.content-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--neon-shadow);
    transform: translateY(-5px);
}

.content-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.content-card p {
    color: #000000;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 1rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.date {
    color: rgba(228, 228, 228, 0.5);
    font-size: 0.9rem;
}

.read-more {
    color: #007BFF;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.read-more:hover {
    color: var(--primary-color);
    text-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
}

/* 响应式设计优化 */
@media (max-width: 1400px) {
    .content-card {
        max-width: 700px;
    }
}

@media (max-width: 768px) {
    .content-card {
        max-width: 100%;
        padding: 1rem;
    }
}

/* 页脚样式 */
.footer {
    width: 100%;
    padding: 2rem 0;
    background: #ffffff; /* 修改为白色背景 */
    border-top: 1px solid #e4e4e4; /* 修改为浅灰色边框 */
    margin-top: 3rem;
    text-align: center;
    backdrop-filter: blur(20px);
}

.footer p {
    color: #000000; /* 修改为黑色字体 */
    font-size: 1rem;
    letter-spacing: 1px;
    margin: 0;
    opacity: 0.8; /* 可选：根据需要调整不透明度 */
    transition: opacity 0.3s ease;
}

.footer p:hover {
    opacity: 1;
}

/* 确保 .footer 内的所有元素继承黑色字体 */
.footer * {
    color: #000000;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .footer {
        padding: 1.5rem 0;
    }
}

/* 导航链接过渡效果 */
.nav-item {
    position: relative;
    transition: all 0.3s ease;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-item:hover::after {
    transform: scaleX(1);
}

.nav-item.active::after {
    transform: scaleX(1);
}

/* 移除或更新任何可能覆盖背景颜色的其��样式 */
/* 例如，如果有针对 .background 类的背景图像设置，确保其被移除或覆盖 */

.background {
    background-image: none; /* 确保不使用背景图像 */
    background-color: #ffffff; /* 确保背景颜色为白色 */
}

/* 确保 .carousel-caption 内的所有元素继承黑色字体 */
.carousel-caption * {
    color: #000000;
}

/* 确保 .read-more 保持蓝色以增强可点击性 */
.read-more {
    color: #007BFF;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.read-more:hover {
    color: #00d4ff;
    text-shadow: 0 0 8px rgba(0, 212, 255, 0.5);
}

/* 添加这些样式到 styles01.css */
.content-wrapper {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 当左侧菜单显示时的样式 */
.main-left.show ~ .main-content {
    margin-left: 250px; /* 根据左侧菜单宽度调整 */
}

/* 确保内容区域正确显示 */
.content-section {
    display: none;
    opacity: 0;
    transition: all 0.3s ease;
}

.content-section.active {
    display: block;
    opacity: 1;
}

/* 添加卡片动画效果 */
.content-card {
    animation: slideIn 0.5s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 优化卡片内容布局 */
.content-card {
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 1rem;
}

.content-card h3 {
    margin: 0;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.content-card p {
    margin: 0;
    padding: 0.5rem 0;
}

.card-footer {
    padding-top: 0.5rem;
    margin-top: 1rem;
}