.github-body { /* GitHub 風格主題 */
    background-color: #0d1117;
    color: #e6edf3;
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    padding-bottom: 48px;
}
.top-banner { /* 頂部橫幅 */
    position: relative;
    width: calc(100% - 48px);
    max-width: 1440px;
    margin: 20px auto 0;
    border-radius: 12px;
    overflow: hidden;
}
.top-banner img { /* 頂部橫幅圖片 */
    display: block;
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}
.banner-text { /* 頂部橫幅文字 */
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
    width: 55%;
    padding: 16px clamp(16px, 4vw, 48px);
    background: linear-gradient(to right, transparent, rgba(13, 17, 23, 0.75));
    color: #ffffff;
    text-align: right;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    animation: banner-slide-in 0.85s ease-out both;
}
.banner-text h1 { /* 頂部橫幅標題 */
    margin: 0 0 8px;
    font-size: clamp(20px, 4vw, 36px);
    overflow-wrap: anywhere;
}
.banner-text p { /* 頂部橫幅段落 */
    margin: 0;
    font-size: clamp(12px, 2vw, 18px);
    overflow-wrap: anywhere;
}
@keyframes banner-slide-in { /* 頂部橫幅滑入動畫 */
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
@media (prefers-reduced-motion: reduce) { /* 減少動畫模式 */
    .banner-text {
        animation: none;
    }
}
.secret-toggle { /* 左下角小三角按鈕（透明點擊區域較大，視覺三角很小） */
    position: absolute;
    left: 2px;
    bottom: 2px;
    width: 22px;
    height: 22px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
}
.secret-toggle::before { /* 實際顯示的小三角 */
    content: "";
    position: absolute;
    left: 6px;
    bottom: 6px;
    width: 0;
    height: 0;
    border-left: 12px solid rgba(230, 237, 243, 0.25);
    border-top: 12px solid transparent;
    transition: border-left-color 0.2s;
}
.secret-toggle:hover::before { /* 懸停時變亮 */
    border-left-color: rgba(230, 237, 243, 0.7);
}
.main-layout { /* 主體左右分欄容器 */
    display: flex;
    align-items: flex-start;
    gap: 28px;
    width: calc(100% - 48px);
    max-width: 1440px;
    margin: 28px auto 0;
}
.sidebar { /* 左側欄（個人卡＋時間卡） */
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.time-card { /* 東京時間小卡片 */
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 16px 20px;
    text-align: center;
}
.time-label { /* 時間卡標籤 */
    font-size: 13px;
    color: #8b949e;
    margin-bottom: 6px;
}
.tokyo-time { /* 東京時間顯示 */
    font-size: 22px;
    font-variant-numeric: tabular-nums;
    color: #ffffff;
}
.countdown { /* 倒數天數 */
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #30363d;
    font-size: 14px;
    color: #8b949e;
}
.countdown strong { /* 倒數天數數字 */
    color: #58a6ff;
    font-size: 18px;
}
.countdown-row + .countdown-row { /* 多個目標間距 */
    margin-top: 6px;
}
.profile-card { /* 左側個人資料卡片 */
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}
.card-avatar { /* 個人頭像 */
    width: 280px;
    height: 280px;
    border-radius: 24px;
    object-fit: cover;
    border: 2px solid #30363d;
}
.profile-name { /* 個人名稱 */
    margin: 16px 0 8px;
    font-size: 24px;
    color: #ffffff;
}
.name-divider { /* 名字下方分割線（預設天藍色） */
    width: 70%;
    height: 4px;
    margin: 0 auto 12px;
    border-radius: 2px;
    background: #87ceeb;
}
.name-divider.trans { /* 隱藏模式：跨性別旗配色 */
    background: linear-gradient(to right,
        #5bcefa 0 20%,
        #f5a9b8 20% 40%,
        #ffffff 40% 60%,
        #f5a9b8 60% 80%,
        #5bcefa 80% 100%);
}
.profile-bio { /* 個人簡介 */
    font-size: 16px;
    color: #8b949e;
    margin: 0 0 20px;
}
.blog-list { /* 右側部落格列表 */
    flex: 1;
}
.card-blogs { /* 部落格卡片 */
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 28px 32px;
    margin-bottom: 24px;
}
.card-header { /* 標題與時間同行容器 */
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}
.card-types { /* 部落格時間 */
    font-size: 14px;
    color: #6e7681;
    white-space: nowrap;
    flex-shrink: 0;
}
.card-blogs h2 { /* 部落格標題 */
    margin: 0;
    font-size: 26px;
}
.card-blogs p { /* 部落格內容 */
    margin: 0;
    color: #8b949e;
    font-size: 17px;
    line-height: 1.6;
}
.social-links { /* 社交鏈接容器 */
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}
.icon-btn { /* 單個圖標按鈕 */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background-color: #21262d;
    border: 1px solid #30363d;
    border-radius: 10px;
    transition: all 0.2s;
}
.icon-btn img { /* 圖標圖片 */
    width: 26px;
    height: 26px;
    object-fit: contain;
}
.icon-btn:hover { /* 懸停效果 */
    background-color: #30363d;
    border-color: #8b949e;
    transform: translateY(-2px);
}
rt { /* ruby 注音標註 */
    font-size: 0.5em;
    color: #e6edf3;
    font-weight: normal;
}