:root {
    /* 核心色彩：深色底色配以粉/青色点缀（类似吉他拨片或舞台霓虹） */
    --accent-color: #ff7eb3;
    --text-primary: #ffffff;
    --text-secondary: #a0a5b1;
    --glass-bg: rgba(30, 31, 38, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Noto Sans SC', sans-serif;
    --font-code: 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-main), serif;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

/* 动态背景图层 */
.background-layer {
    position: fixed;
    top: 0; bottom: 0; left: 0; right: 0;
    background: linear-gradient(135deg, #1a1c29 0%, #14ffff 100%);
    /* background: url(../images/Castorice.jpeg) center/cover no-repeat;*/
    /* background-image: url('../assets/bg.jpg');
    background-size: cover;
    background-position: center; */
    z-index: -1;
}

/* 核心：毛玻璃容器 */
.glass-container {
    width: 90%;
    max-width: 800px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* 头部个人信息 */
.profile-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.avatar-placeholder {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color), #7e8ce0);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: bold;
    box-shadow: 0 0 15px rgba(255, 126, 179, 0.4);
}

.profile-info h1 {
    font-size: 1.8rem;
    letter-spacing: 1px;
}

.profile-info .subtitle {
    color: var(--text-secondary);
    font-family: var(--font-code), serif;
    font-size: 0.9rem;
    margin-top: 5px;
}

/* 导航切换 */
.site-nav {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 5px 10px;
    transition: all 0.3s ease;
    font-family: var(--font-main), serif;
}

.nav-btn:hover {
    color: var(--text-primary);
}

.nav-btn.active {
    color: var(--accent-color);
    font-weight: bold;
    border-bottom: 2px solid var(--accent-color);
}

/* 区域显示逻辑 */
.content-area section {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.content-area section.active-section {
    display: block;
}

/* 小工具网格 */
.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.tool-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    transition: transform 0.2s, background 0.2s;
    cursor: pointer;
}

.tool-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
}

.tool-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.tool-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 博客列表简易样式 */
.blog-item {
    padding: 15px 0;
    border-bottom: 1px dashed var(--glass-border);
    cursor: pointer;
}
.blog-item:hover h3 {
    color: var(--accent-color);
}
.blog-item .date {
    font-family: var(--font-code), serif;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}