@font-face {
    font-family: '975MaruSC';
    src: url('../fonts/975MaruSC-Regular.woff2') format('woff2'),
         url('../fonts/975MaruSC-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: '975MaruSC';
    src: url('../fonts/975MaruSC-Medium.woff2') format('woff2'),
         url('../fonts/975MaruSC-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: '975MaruSC';
    src: url('../fonts/975MaruSC-Bold.woff2') format('woff2'),
         url('../fonts/975MaruSC-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

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

body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background-color: #2d3436; /* 添加默认背景色 */
    font-family: '975MaruSC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    transition: background-image 1s ease-in-out;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.container {
    position: relative;
    z-index: 2;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.3);
    /* 去除虚化效果，删除或注释掉下面这一行 */
    /* backdrop-filter: blur(5px); */
}

.content {
    text-align: center;
    color: white;
    padding: 2rem;
    border-radius: 10px;
    animation: fadeIn 1s ease-in;
    max-width: 800px;
    width: 90%;
    margin: 0 auto;
}

.logo img {
    width: 120px;
    height: 120px;
    margin-bottom: 1rem;
    animation: fadeIn 1s ease-in;
    border-radius: 50%; /* 新增：让头像变为圆形 */
    object-fit: cover;  /* 可选：保证图片内容不变形 */
}

.title {
    font-family: '975MaruSC', serif;
    font-size: clamp(2rem, 5vw, 3rem);
    margin: 0.5rem 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.subtitle {
    font-size: clamp(1rem, 3vw, 1.2rem);
    margin-bottom: 2rem;
    opacity: 0.9;
    letter-spacing: 3px;
}

.navigation {
    margin: 2rem 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.nav-item {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1.5rem;
    /* 移除以下两行即可去掉椭圆边框和线条 */
    /* border: 1px solid rgba(255, 255, 255, 0.3); */
    /* border-radius: 20px; */
    transition: all 0.3s ease;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.hitokoto {
    margin: 2rem auto;
    font-style: normal;
    opacity: 0.9;
    max-width: 600px;
    padding: 0 1rem;
}

.hitokoto-text {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.social-links {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

/* 媒体查询 */
@media screen and (max-width: 768px) {
    .content {
        padding: 1.5rem;
    }

    .logo img {
        width: 100px;
        height: 100px;
    }

    .navigation {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }

    .nav-item {
        width: 80%;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .content {
        padding: 1rem;
    }

    .logo img {
        width: 80px;
        height: 80px;
    }

    .social-links {
        gap: 1rem;
    }

    .social-links a {
        font-size: 1.2rem;
    }
}

.avatar img {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    margin-bottom: 1rem;
    border: 3px solid rgba(255, 255, 255, 0.8);
    transition: transform 0.3s ease;
}

.avatar img:hover {
    transform: scale(1.1);
}

.name {
    font-size: 2rem;
    margin: 1rem 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.bio {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.hitokoto-from {
    font-size: 0.9rem;
    opacity: 0.8;
}

.social-links {
    margin-top: 2rem;
}

.social-links a {
    color: white;
    text-decoration: none;
    margin: 0 1rem;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: #ddd;
    transform: translateY(-3px);
}

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

/* 关于页面样式 */
.section {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: transparent;
    backdrop-filter: blur(10px);
    z-index: 100;
    overflow-y: auto;
    padding: 2rem 0;
}

.section:target {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

/* 返回按钮样式 */
.back-btn {
    position: absolute;
    top: 2rem;
    left: 2rem;
    font-size: 1.5rem;
    color: white;
    text-decoration: none;
    z-index: 110;
    transition: transform 0.3s ease;
    display: none;
}

.back-btn:hover {
    transform: scale(1.1);
}

/* 确保about-container有相对定位，以便返回按钮可以正确定位 */
.about-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    color: white;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background-color: white;
}

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

.about-avatar {
    flex: 0 0 150px;
}

.about-avatar img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, 0.5);
}

.about-info {
    flex: 1;
    min-width: 300px;
}

.about-info h3 {
    margin: 1rem 0 0.5rem;
    font-size: 1.3rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.skill-tag {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    color: white;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

.submit-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* 留言板样式 */
.guestbook-intro {
    margin-bottom: 2rem;
    text-align: center;
}

.guestbook-form {
    margin-bottom: 3rem;
}

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

.message-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.message-item:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.message-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.message-author {
    font-weight: bold;
}

.message-content p {
    margin: 0;
    line-height: 1.6;
}

/* 响应式调整 */
@media screen and (max-width: 768px) {
    .message-header {
        flex-direction: column;
        gap: 0.3rem;
    }
}

@media screen and (max-width: 768px) {
    .about-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .about-avatar {
        margin-bottom: 1rem;
    }
}

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    text-align: center;
    color: white;
    /* 移除这行背景色设置 */
    /* background-color: rgba(0, 0, 0, 0.5); */
    z-index: 10;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 0.8;
}