/* --- 全局基础 --- */
 :root {
    --miku-teal: #39C5BB;
    --miku-pink: #E4007F;
    --text-main: #24292f; /* GitHub 同款深灰 */
    --text-sub: #57606a;  /* GitHub 同款浅灰 */
    --bg-glass: rgba(255, 255, 255, 0.92); /* 微微透光的白纸质感 */
    --border-color: #d0d7de;
}

 /* --- 主容器：像一张A4纸一样浮在背景上 --- */
 .main-container {
    max-width: 900px; /* 类似 GitHub 宽屏时的内容宽度 */
    margin: 100px auto 60px;
    background: var(--bg-glass);
    backdrop-filter: blur(8px); /* 毛玻璃 */
    border: 1px solid var(--border-color);
    border-radius: 8px; /* 稍微圆润一点 */
    padding: 40px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08); /* 柔和的阴影 */
}

/* --- 头部区域：头像 + 名字 --- */
.profile-header {
    display: flex;
    align-items: center;
    gap: 25px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color); /* 经典的分割线 */
    margin-bottom: 30px;
}

.avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 4px 12px rgba(57, 197, 187, 0.3); /* Miku色光晕 */
    object-fit: cover;
}

.profile-info h1 {
    margin: 0;
    font-size: 28px;
    font-weight: 600;
}

.profile-info .bio {
    color: var(--text-sub);
    margin: 5px 0 10px 0;
    font-size: 16px;
}

.social-links a {
    color: var(--text-sub);
    margin-right: 15px;
    text-decoration: none;
    font-size: 18px;
    transition: 0.2s;
}
.social-links a:hover {
    color: var(--miku-teal); /* 悬停变色 */
}

/* --- 内容区块风格 --- */
h2 {
    font-size: 20px;
    font-weight: 600;
    margin-top: 30px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

h2 i { color: var(--text-sub); font-size: 18px; }

p { color: var(--text-main); margin-bottom: 15px; }

/* 链接样式 */
a.text-link {
    color: var(--miku-teal);
    text-decoration: none;
    font-weight: 500;
}
a.text-link:hover { text-decoration: underline; }

/* --- 卡片网格 (模仿 GitHub Pinned Repos) --- */
/* 这种设计非常整齐、美观 */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* 自动适应宽度 */
    gap: 16px;
}

.card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 16px;
    transition: 0.2s ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.card:hover {
    border-color: var(--miku-teal); /* 悬停时边框变色 */
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.card-title {
    font-weight: 600;
    color: var(--miku-teal);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-desc {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.5;
}

/* 响应式适配手机 */
@media (max-width: 600px) {
    .main-container { padding: 20px; margin: 20px; }
    .profile-header { flex-direction: column; text-align: center; }
    .grid-cards { grid-template-columns: 1fr; }
}

/* ========== 深色模式 ========== */
body.dark-mode {
    --text-main: #e0e0e0;
    --text-sub: #a0a0a0;
    --bg-glass: rgba(30, 30, 30, 0.92);
    --border-color: #3d3d3d;
}

body.dark-mode .main-container {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

body.dark-mode .avatar {
    border-color: #444;
    box-shadow: 0 4px 12px rgba(57, 197, 187, 0.2);
}

body.dark-mode .profile-info h1 {
    color: #f0f0f0;
}

body.dark-mode h2 {
    color: #e0e0e0;
}

body.dark-mode h2 i {
    color: #888;
}

body.dark-mode .card {
    background: #2a2a2a;
    border-color: #3d3d3d;
}

body.dark-mode .card:hover {
    border-color: var(--miku-teal);
    box-shadow: 0 4px 12px rgba(57, 197, 187, 0.15);
}

body.dark-mode .card-title {
    color: #5dd3c8;
}

body.dark-mode .social-links a {
    color: #a0a0a0;
}

body.dark-mode .social-links a:hover {
    color: #5dd3c8;
}

body.dark-mode a.text-link {
    color: #5dd3c8;
}