/* 全局样式 */
:root {
    --primary-color: #6a5acd;
    --secondary-color: #9370db;
    --accent-color: #ff6b6b;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #fff;
    --bg-light: #f9f9f9;
    --bg-dark: #222;
    --border-color: #eee;
    --overlay-color: rgba(0, 0, 0, 0.6);
    --box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
    width: 100%;
    opacity: 0.95;
    /* 默认稍微透明，等待视频加载 */
    transition: opacity 0.5s ease;
}

body.video-loaded {
    opacity: 1;
    /* 视频加载完成后，恢复完全不透明 */
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

ul,
ol {
    list-style-position: inside;
    margin: 1rem 0;
    padding-left: 1rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 1.5rem 0 1rem;
    line-height: 1.3;
}

p {
    margin-bottom: 1rem;
}

img {
    max-width: 100%;
    height: auto;
}

/* 添加对Data URL图片的特殊处理 */
.article-image img,
.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    font-size: 0;
    /* 防止显示文本 */
    text-indent: -9999px;
    /* 防止显示文本 */
    white-space: nowrap;
    /* 防止文本换行 */
    overflow: hidden;
    /* 确保不会有文本溢出 */
    transform: translateZ(0);
    /* 启用GPU加速 */
}

.data-url-container {
    width: 100%;
    height: 100%;
    background-position: center;
    background-size: cover;
    display: block;
    min-height: 150px;
    /* 确保即使没有图片也有高度 */
    will-change: transform;
    /* 启用GPU加速 */
}

.article-image .data-url-container {
    min-height: 150px;
}

.post-image .data-url-container {
    min-height: 180px;
}

button,
.submit-btn {
    cursor: pointer;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-size: 1rem;
    transition: var(--transition);
}

button:hover,
.submit-btn:hover {
    background-color: var(--secondary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 视频背景 */
.video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background-color: #f9f9f9;
    /* 添加背景色，在视频加载前显示 */
    /* 添加渐变背景作为视频加载前的过渡效果 */
    background-image: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

#bg-video {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    top: 0;
    left: 0;
    will-change: transform;
    /* 启用GPU加速 */
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.05);
    will-change: opacity;
    /* 启用GPU加速 */
}

/* 页面布局 */
header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(3px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--box-shadow);
    z-index: 100;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    margin-right: 0.75rem;
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(3px);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.logo img:hover {
    transform: scale(1.05);
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 0;
}

nav ul {
    display: flex;
    margin: 0;
    padding: 0;
}

nav li {
    margin-left: 1.5rem;
    list-style: none;
}

nav a {
    color: var(--text-color);
    font-weight: 600;
    padding: 0.5rem;
    position: relative;
    text-shadow: 0 0 3px rgba(255, 255, 255, 0.9);
}

nav a:hover {
    color: var(--primary-color);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

nav a.active {
    color: var(--primary-color);
    text-shadow: 0 0 5px rgba(255, 255, 255, 1);
}

main {
    min-height: calc(100vh - 160px);
    padding: 2rem;
    background-color: transparent;
    backdrop-filter: none;
    border-radius: 8px;
    box-shadow: none;
    margin: 2rem auto;
    width: 95%;
    max-width: 1400px;
}

.page-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 2.5rem;
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

footer {
    text-align: center;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(3px);
    box-shadow: var(--box-shadow);
}

.social-links {
    display: flex;
    justify-content: center;
    margin-bottom: 1rem;
}

.social-links a {
    font-size: 1.5rem;
    margin: 0 0.75rem;
    color: var(--text-color);
}

.social-links a:hover {
    color: var(--primary-color);
}

/* 首页样式 */
.hero {
    text-align: center;
    padding: 2rem 0;
    width: 100%;
    background-color: transparent;
}

.profile {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    width: 100%;
    background-color: transparent;
}

.profile img {
    width: 250px;
    height: 250px;
    border-radius: 8px;
    object-fit: cover;
    background-color: transparent;
    backdrop-filter: none;
    transition: var(--transition);
    box-shadow: none;
    border: none;
}

.profile img:hover {
    transform: scale(1.05);
}

.quote {
    max-width: 600px;
}

.quote h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.latest-posts {
    margin-top: 3rem;
}

.latest-posts h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    width: 100%;
}

.post-card {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.post-image {
    height: 200px;
    overflow: hidden;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.post-card:hover .post-image img {
    transform: scale(1.05);
}

.post-content {
    padding: 1.5rem;
    background-color: transparent;
}

.post-content h3 {
    margin-top: 0;
    font-size: 1.25rem;
}

.post-date {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.post-excerpt {
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

.read-more {
    display: inline-block;
    font-weight: 500;
    color: var(--primary-color);
}

.view-all {
    display: block;
    text-align: center;
    margin-top: 2rem;
    font-weight: 500;
}

/* 博客列表页样式 */
.blog-page {
    padding-bottom: 3rem;
    width: 100%;
}

.blog-filter {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    width: 100%;
}

.blog-filter input,
.blog-filter select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.blog-filter input {
    flex: 1;
    min-width: 200px;
    max-width: 600px;
}

.blog-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
}

.blog-item {
    display: flex;
    gap: 2rem;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    overflow: hidden;
    width: 100%;
}

.blog-image {
    flex: 0 0 300px;
    height: 250px;
    max-width: 40%;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-content {
    flex: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    background-color: transparent;
}

.blog-content h2 {
    margin-top: 0;
    font-size: 1.5rem;
}

.blog-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-meta i {
    margin-right: 0.25rem;
}

.blog-excerpt {
    margin-bottom: 1rem;
    flex: 1;
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
    gap: 0.5rem;
}

.pagination a {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
}

.pagination a.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination a:hover:not(.active) {
    background-color: var(--bg-light);
}

/* 博客文章页样式 */
.blog-post-page {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.blog-post {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.post-title {
    font-size: 2rem;
    margin-top: 0;
    text-align: left;
}

.post-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.post-banner {
    margin: 0 -2rem 2rem;
}

.post-banner img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
}

.post-content {
    line-height: 1.8;
    font-size: 1.1rem;
    background-color: transparent;
}

.post-content h2 {
    font-size: 1.6rem;
    margin-top: 2rem;
    color: var(--primary-color);
}

.post-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    font-style: italic;
    color: var(--text-light);
    margin: 1.5rem 0;
}

.post-tags {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.tag-label {
    margin-right: 0.5rem;
    color: var(--text-light);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-light);
    border-radius: 20px;
    margin: 0.25rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

.tag:hover {
    background-color: var(--primary-color);
    color: white;
}

.post-share {
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.share-label {
    margin-right: 1rem;
    color: var(--text-light);
}

.share-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-light);
    color: var(--text-color);
    margin-right: 0.5rem;
}

.share-link:hover {
    background-color: var(--primary-color);
    color: white;
}

.post-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.prev-post,
.next-post {
    color: var(--text-color);
}

.prev-post i,
.next-post i {
    color: var(--primary-color);
}

/* 评论区样式 */
.comments-section {
    margin-top: 3rem;
}

.comments-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comment {
    display: flex;
    gap: 1rem;
}

.comment-avatar {
    flex: 0 0 50px;
}

.comment-avatar img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.comment-author {
    font-weight: 500;
}

.comment-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.comment-text {
    margin-bottom: 0.5rem;
}

.comment-actions {
    display: flex;
    gap: 1rem;
}

.reply-btn,
.like-btn {
    color: var(--text-light);
    font-size: 0.9rem;
}

.reply-btn:hover,
.like-btn:hover {
    color: var(--primary-color);
}

.comment-replies {
    margin-top: 1rem;
    margin-left: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.comment.reply {
    background-color: rgba(249, 249, 249, 0.5) !important;
    padding: 1rem;
    border-radius: 8px;
}

.comment-form {
    background-color: rgba(249, 249, 249, 0.5) !important;
    padding: 1.5rem;
    border-radius: 8px;
}

.comment-form h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* 留言板页面样式 */
.message-page {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.message-intro {
    text-align: center;
    margin-bottom: 2rem;
}

.message-form-container {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    margin-bottom: 3rem;
}

.message-form-container h2 {
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.message-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.messages-container {
    margin-top: 3rem;
}

.messages-container h2 {
    margin-bottom: 1.5rem;
}

.messages-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.message-item {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.message-avatar {
    flex: 0 0 40px;
    margin-right: 15px;
    float: left;
}

.message-avatar img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.message-reply {
    margin-top: 1.5rem;
    background-color: rgba(249, 249, 249, 0.5) !important;
    padding: 1rem;
    border-radius: 8px;
}

/* 关于我页面样式 */
.about-page {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

.about-content {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    background-color: transparent;
}

.about-image {
    flex: 0 0 300px;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.about-text {
    flex: 1;
    min-width: 300px;
    background-color: transparent;
}

.about-text h2 {
    margin-top: 0;
    color: var(--primary-color);
}

.skills-section {
    margin-top: 2rem;
}

.skills {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-name {
    font-weight: 500;
}

.skill-bar {
    height: 10px;
    background-color: var(--bg-light);
    border-radius: 5px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 5px;
}

.contact-section {
    background-color: rgba(255, 255, 255, 0.7);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.contact-method {
    text-align: center;
    padding: 1.5rem;
    background-color: rgba(249, 249, 249, 0.5);
    border-radius: 8px;
}

.contact-method i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-method h3 {
    margin: 0.5rem 0;
}

.contact-form-container {
    margin-top: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 1rem;
        width: 100%;
    }

    .logo {
        margin-bottom: 1rem;
    }

    nav ul {
        justify-content: center;
        flex-wrap: wrap;
    }

    nav li {
        margin: 0 0.75rem;
    }

    main {
        padding: 1.5rem;
        margin: 1rem auto;
        width: 95%;
    }

    .blog-item {
        flex-direction: column;
    }

    .blog-image {
        flex: 0 0 200px;
        height: auto;
    }

    .post-banner {
        margin: 0 -1.5rem 1.5rem;
    }

    .about-content {
        flex-direction: column;
    }

    .about-image {
        flex: 0 0 auto;
        text-align: center;
    }

    .about-image img {
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    main {
        width: 98%;
        padding: 1rem;
    }

    .posts-grid {
        grid-template-columns: 1fr;
    }

    .profile {
        flex-direction: column;
    }

    .comment {
        flex-direction: column;
    }

    .comment-avatar {
        margin-bottom: 0.5rem;
    }

    .comment-meta {
        flex-direction: column;
    }

    .comment-date {
        margin-top: 0.25rem;
    }
}

/* 增强文字可读性 */
.page-title,
h1,
h2,
h3,
.post-title,
.blog-content h2,
.about-text h2,
.message-author {
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

/* 增强段落文字在透明背景上的可读性 */
p,
li,
.blog-excerpt,
.post-excerpt,
.comment-text,
.message-text {
    text-shadow: 0 0 3px rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* 增强视频容器的效果 */
.video-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 60%, rgba(0, 0, 0, 0.2) 100%);
    pointer-events: none;
}

/* 对于黑色/深色背景上的白色文字，使用深色阴影 */
.post-banner .caption,
.overlay-text {
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.7);
}

/* 留言板通知样式 */
.notification {
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-weight: 500;
    text-align: center;
}

.notification.success {
    background-color: rgba(76, 175, 80, 0.2);
    color: #2e7d32;
    border: 1px solid #4caf50;
}

.notification.error {
    background-color: rgba(244, 67, 54, 0.2);
    color: #c62828;
    border: 1px solid #f44336;
}

.notification.info {
    background-color: rgba(33, 150, 243, 0.2);
    color: #0277bd;
    border: 1px solid #2196f3;
}

/* 留言加载状态 */
.loading {
    text-align: center;
    padding: 30px 0;
    color: #666;
    font-style: italic;
}

.no-messages {
    text-align: center;
    padding: 40px 0;
    color: #666;
    font-style: italic;
}

.error {
    text-align: center;
    padding: 20px 0;
    color: #c62828;
    font-weight: 500;
}

/* 网站链接图标 */
.website-link {
    margin-left: 5px;
    color: #666;
    transition: color 0.2s;
}

.website-link:hover {
    color: #1e88e5;
}

.transparent-image-container {
    width: 250px;
    height: 250px;
    background-color: transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.transparent-image-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    background-color: transparent;
    border: none;
    box-shadow: none;
}