/* ===== 基础设定 ===== */
.comment-status-icon { font-size: 1.2rem; margin-bottom: .5rem; }
.dialog-confirm-btn { margin-top: 1.5rem; }
.comment-avatar-placeholder { background: var(--border-color); }
.comment-loading { padding: 1rem 0; font-size: .85rem; }
.list-empty-hint { color: var(--text-muted); font-size: .85rem; text-align: left; width: 100%; }
.clickable-card { cursor: pointer; }
.says-footer-action { text-align: center; margin-top: 1.5rem; }
.no-scroll { overflow: hidden !important; }
.pointer-events-none { pointer-events: none !important; }
.hide-img { display: none !important; }
.fav-cover-error { background: #f0f0f0 !important; min-height: 120px !important; }
:root {
    --bg-color: #fafafa;
    --text-main: #2c2c2c;
    --text-muted: #999999;
    --accent-color: #555555;
    --border-color: #e8e8e8;
    --card-bg: #ffffff;
    --header-height: 64px;
    --max-content-width: 860px;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    padding-top: var(--header-height);
    overflow-x: hidden;
}

/* ===== 顶部导航栏 ===== */
.top-header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: var(--header-height);
    background-color: rgba(250, 250, 250, 0.88);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    display: flex;
    align-items: center;
}

.header-inner {
    max-width: var(--max-content-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    line-height: 1;
}

.brand {
    font-size: 1.25rem; font-weight: 600; letter-spacing: -0.5px;
    display: flex; align-items: center; line-height: 1; user-select: none;
    text-decoration: none; color: var(--text-main);
}

.nav-menu { display: flex; gap: 0.25rem; align-items: center; line-height: 1; }

.nav-item {
    text-decoration: none; color: var(--text-muted); font-size: 0.9rem; font-weight: 400;
    transition: color 0.25s ease, background-color 0.25s ease; cursor: pointer;
    display: flex; align-items: center; line-height: 1;
    padding: 0.4rem 0.75rem; border-radius: 6px;
}
.nav-item:hover { color: var(--text-main); background-color: rgba(0,0,0,0.04); }
.nav-item.active { color: var(--text-main); font-weight: 600; }

/* ===== 主内容区 ===== */
.content-area {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 5rem 1.5rem 6rem; /* 顶部空间从 4rem 增加到 5rem */
}

/* ===== Section 切换动画 ===== */
.section { display: none; }
.section.active { display: block; animation: fadeIn 0.35s ease forwards; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== 通用 ===== */
.loading { color: var(--text-muted); font-size: 0.85rem; text-align: center; padding: 3rem 0; }
.error-msg { color: #d9534f; background: #fdf7f7; padding: 1rem 1.25rem; border-radius: 8px; border: 1px solid #ebcccc; text-align: center; margin-top: 1rem; font-size: 0.9rem; }

/* 页面标题居中 */
.section-title { text-align: center; font-size: 1.5rem; font-weight: 600; margin-bottom: 2.5rem; letter-spacing: -0.5px; }

.tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.5rem; }
.tag { font-size: 0.7rem; padding: 0.15rem 0.55rem; background-color: var(--bg-color); border: 1px solid var(--border-color); border-radius: 10px; color: var(--accent-color); font-weight: 500; }

/* ============================
   首页 —— 居中 + 整体下移
   ============================ */
.hero-container {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 2rem; /* 内容区内再下移 */
}

.avatar-placeholder {
    width: 56px; height: 56px; border-radius: 50%;
    background-color: var(--border-color); margin-bottom: 2rem;
    object-fit: cover; display: block;
}
.avatar-placeholder.large { width: 80px; height: 80px; margin-bottom: 2rem; }

.greeting { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; margin-bottom: 0.25rem; letter-spacing: 0.5px; }
.name { font-size: 2.8rem; font-weight: 700; margin-bottom: 0.75rem; letter-spacing: -1.5px; line-height: 1.15; }
.intro { font-size: 1.15rem; font-weight: 500; margin-bottom: 0.5rem; line-height: 1.5; }

.status {
    color: var(--text-muted); font-size: 0.9rem; line-height: 1.6;
    margin-bottom: 3rem; min-height: 1.6em;
}
.status::after { content: "|"; display: inline; animation: blink 0.8s step-end infinite; font-weight: 400; color: var(--text-muted); }
@keyframes blink { 50% { opacity: 0; } }


/* ============================
   通用 3 列卡片网格
   ============================ */
.card-grid-3 {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 1.25rem;
}

/* 项目卡片 */
.project-card {
    background-color: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 12px; padding: 1.5rem;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
    display: flex; flex-direction: column;
    height: 260px;
    overflow: hidden;
    flex: 0 0 calc((100% - 2.5rem) / 3);
}
.project-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.06); transform: translateY(-2px); }
.project-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-shrink: 0; }
.project-logo { width: 28px; height: 28px; border-radius: 6px; object-fit: cover; }
.project-card h3 {
    font-size: 1.05rem; font-weight: 600; line-height: 1.4;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.project-card h3 a { color: var(--text-main); text-decoration: none; }
.project-card h3 a:hover { text-decoration: underline; }
.project-card p {
    color: var(--text-muted); font-size: 0.85rem; line-height: 1.6;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.project-card .tags { margin-top: auto; padding-top: 0.75rem; }

/* ============================
   喜爱 —— 一屏预览 + 分类列表
   ============================ */
.fav-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 1.25rem;
}

.fav-card {
    background-color: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 12px; padding: 1.5rem;
    transition: box-shadow 0.25s ease;
    display: flex; flex-direction: column;
    height: 320px;
    flex: 0 0 calc((100% - 2.5rem) / 3);
}
.fav-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
.fav-cover {
    width: 100%; height: 120px; border-radius: 8px; object-fit: cover;
    background-color: var(--bg-color); margin-bottom: 1rem; display: block;
    flex-shrink: 0;
}
.fav-card h4 {
    font-size: 1rem; font-weight: 600; margin-bottom: 0.35rem;
    text-align: left;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.fav-card p {
    font-size: 0.85rem; color: var(--text-muted); line-height: 1.5;
    text-align: left;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.fav-card .tags { margin-top: auto; padding-top: 0.75rem; }

/* 分类行容器 */
.fav-category-row { margin-bottom: 2.5rem; }
.fav-category-row:last-child { margin-bottom: 0; }

/* 分类行标题 + 更多 */
.fav-category-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}
.fav-category-name {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.fav-category-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}
.fav-more-link,
.says-more-link {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s;
}
.fav-more-link:hover,
.says-more-link:hover { color: var(--text-main); }

/* 分类列表页 / 归档列表页 —— 返回按钮 */
.fav-category-back,
.says-all-back {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    margin-bottom: 1.5rem;
    transition: color 0.2s;
}
.fav-category-back:hover,
.says-all-back:hover { color: var(--text-main); }

/* ============================
   说说 —— 时间线布局
   ============================ */
.timeline { position: relative; }

.timeline-group { margin-bottom: 2.5rem; }

.timeline-date {
    font-size: 0.85rem; font-weight: 600; color: var(--text-main);
    margin-bottom: 1rem; padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 0.5px;
    display: flex; align-items: center; gap: 0.5rem;
}
.timeline-date::before {
    content: ""; display: inline-block;
    width: 8px; height: 8px; border-radius: 50%;
    background-color: var(--accent-color); flex-shrink: 0;
}

.timeline-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 1.25rem;
}

/* 说说卡片 */
.moment-card {
    background-color: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 12px; padding: 1.5rem;
    transition: box-shadow 0.25s ease;
    display: flex; flex-direction: column;
    height: 200px;
    flex: 0 0 calc((100% - 2.5rem) / 3);
}
.moment-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
.moment-time { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.5rem; letter-spacing: 0.5px; flex-shrink: 0; }
.moment-title {
    font-weight: 600; font-size: 1rem; margin-bottom: 0.5rem; line-height: 1.4;
    flex-shrink: 0;
    display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.moment-content {
    font-size: 0.85rem; color: var(--text-muted); line-height: 1.7;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.moment-card .tags { margin-top: auto; padding-top: 0.75rem; }

/* ============================
   关于 —— 双栏布局，左侧信息右侧文案
   ============================ */
.about-container {
    max-width: 900px;
    margin: 0 auto;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2.5rem;
    align-items: center;
    text-align: left;
}

.about-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.about-avatar { margin-bottom: 1rem; }

.about-text {
    margin-bottom: 1.25rem; font-size: 0.95rem;
    line-height: 1.8; color: var(--text-main);
}
.about-text.muted {
    color: var(--text-muted); font-size: 0.9rem;
    line-height: 2.2;
}

.contact-links-container {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
    text-align: center;
}

.contact-links {
    display: flex; flex-wrap: wrap; gap: 1.2rem; justify-content: center;
    margin-top: 1rem;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    .about-left {
        align-items: center;
    }
    .contact-links {
        justify-content: center;
    }
}

.contact-item {
    color: var(--text-main); text-decoration: none;
    font-size: 0.9rem; font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}
.contact-item:hover { border-bottom-color: var(--text-main); }

.contact-email {
    font-size: 0.9rem; color: var(--text-muted);
    display: flex; align-items: center; justify-content: center; gap: 0.5rem;
}
.contact-email::before { content: "✉"; font-size: 1rem; }

/* ============================
   移动端侧边栏
   ============================ */
.hamburger {
    display: none;  /* 桌面端隐藏 */
    background: none; border: none;
    font-size: 1.4rem; cursor: pointer;
    color: var(--text-main); padding: 0.25rem;
    line-height: 1; margin-right: 0.5rem;
}
.sidebar-overlay {
    display: none;  /* 桌面端隐藏 */
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.35);
    z-index: 199;
    opacity: 0; pointer-events: none;
    transition: opacity 0.3s ease;
}
.sidebar-overlay.open { opacity: 1; pointer-events: auto; }

.sidebar {
    display: none;  /* 桌面端隐藏 */
    position: fixed; top: 0; left: 0;
    height: 100vh; width: 260px;
    background: var(--card-bg);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 2px 0 24px rgba(0,0,0,0.12);
    overflow-y: auto;
}
.sidebar.open { transform: translateX(0); }

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}
.sidebar-brand {
    font-size: 1.15rem; font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.5px;
}
.sidebar-close {
    background: none; border: none;
    font-size: 1.15rem; cursor: pointer;
    color: var(--text-muted);
    padding: 0.25rem; line-height: 1;
}
.sidebar-close:hover { color: var(--text-main); }

.sidebar-nav { padding: 0.5rem 0; }

.sidebar-item {
    display: block;
    padding: 0.9rem 1.5rem;
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.95rem;
    transition: background 0.2s;
}
.sidebar-item:hover { background: var(--bg-color); }
.sidebar-item.active {
    font-weight: 600;
    background: var(--bg-color);
    color: var(--text-main);
}

/* ============================
   移动端
   ============================ */
@media (max-width: 768px) {
    /* 显示 hamburger + 侧边栏，隐藏桌面导航 */
    .hamburger { display: flex; align-items: center; }
    .top-header .nav-menu { display: none; }
    .sidebar-overlay { display: block; }
    .sidebar { display: block; }

    .card-grid-3, .fav-cards, .timeline-cards { justify-content: center; }
    .project-card, .fav-card, .moment-card { flex: 0 0 100%; }
    .name { font-size: 2.2rem; }
    .content-area { padding: 3rem 1.25rem 5rem; }
    .hero-container { padding-top: 1rem; }

    .header-inner { justify-content: center; gap: 0; position: relative; }
    .hamburger { position: absolute; left: 1.5rem; }
}

@media (max-width: 480px) {
    .top-header { height: auto; padding: 0.5rem 0; }
    body { padding-top: 58px; }
    .header-inner { flex-direction: row; height: auto; }
}

/* ============================
   详情页
   ============================ */
.detail-container {
    max-width: 680px;
    margin: 0 auto;
    animation: fadeIn 0.3s ease forwards;
}

.detail-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    margin-bottom: 2rem;
    transition: color 0.2s;
}
.detail-back:hover { color: var(--text-main); }

.detail-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.detail-title {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.3;
}

.detail-body {
    line-height: 2;
    font-size: 1rem;
    color: var(--text-main);
}

.detail-body h1 { font-size: 1.5rem; margin: 2rem 0 1rem; }
.detail-body h2 { font-size: 1.3rem; margin: 2rem 0 0.75rem; }
.detail-body h3 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
.detail-body p { margin-bottom: 1.25rem; }
.detail-body ul, .detail-body ol { margin: 0 0 1.25rem 1.5rem; }
.detail-body li { margin-bottom: 0.35rem; }
.detail-body blockquote {
    border-left: 3px solid var(--border-color);
    padding-left: 1rem;
    margin: 1.25rem 0;
    color: var(--text-muted);
}
.detail-body blockquote p { margin-bottom: 0; }
.detail-body code {
    background: var(--bg-color);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: "SF Mono", "Fira Code", monospace;
}
.detail-body pre {
    background: var(--bg-color);
    padding: 1rem 1.25rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.25rem 0;
    font-size: 0.85rem;
    line-height: 1.6;
}
.detail-body pre code { background: none; padding: 0; }
.detail-body hr { border: none; border-top: 1px solid var(--border-color); margin: 2rem 0; }
.detail-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 1rem 0; }
.detail-body em { font-style: italic; }
.detail-body strong { font-weight: 600; }
.detail-body a { color: var(--text-main); text-decoration: underline; }

.detail-tags {
    display: flex; gap: 0.4rem; flex-wrap: wrap;
    margin-top: 2rem;
    padding: 1.25rem 0;
}

.detail-error {
    text-align: center; padding: 3rem 0; color: var(--text-muted);
}

/* 项目访问按钮 */
.btn-visit {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 1rem;
    margin-top: 1rem;
    border: 1px solid var(--text-main);
    border-radius: 6px;
    background: var(--text-main);
    color: #fff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: opacity 0.2s;
    align-self: flex-start;
}
.btn-visit:hover { opacity: 0.85; }

/* ============================
   详情页浮动按钮 (右下角)
   ============================ */
.detail-float-btns {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 999;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.float-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: color 0.2s, background 0.2s, transform 0.2s;
    text-decoration: none;
}
.float-btn:hover {
    color: var(--text-main);
    background: #f5f5f5;
    transform: translateY(-2px);
}
.float-btn.hidden-btn {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.float-btn .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--accent-color);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 600;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    line-height: 1;
}

/* ============================
   评论弹窗
   ============================ */
.comment-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    animation: fadeIn 0.2s ease;
}

.comment-modal {
    background: var(--card-bg);
    border-radius: 14px;
    padding: 2rem;
    max-width: 480px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 8px 40px rgba(0,0,0,0.15);
}

.comment-modal h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.comment-modal .form-group {
    margin-bottom: 1rem;
}
.comment-modal .form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}
.comment-modal .form-group input,
.comment-modal .form-group textarea {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: var(--font-family);
    background: var(--bg-color);
}
.comment-modal .form-group textarea {
    resize: vertical;
    min-height: 80px;
}
.comment-modal .honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
}

/* 头像选择器 */
.avatar-picker {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.avatar-option {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    object-fit: cover;
    transition: border-color 0.2s;
}
.avatar-option.selected {
    border-color: var(--text-main);
}

.comment-modal-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-top: 1rem;
}
.comment-modal .btn {
    padding: 0.5rem 1.1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-main);
    font-size: 0.9rem;
    cursor: pointer;
    font-family: var(--font-family);
}
.comment-modal .btn-primary {
    background: var(--text-main);
    color: #fff;
    border-color: var(--text-main);
}

/* 评论区列表 */
.comment-list {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    max-height: 240px;
    overflow-y: auto;
}
.comment-item {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}
.comment-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    object-fit: cover;
}
.comment-body {
    flex: 1;
    min-width: 0;
}
.comment-nickname {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}
.comment-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    word-break: break-word;
}
.comment-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}
.comment-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 1rem 0;
}

.comment-submit-ok {
    text-align: center;
    color: #5cb85c;
    font-size: 0.9rem;
    padding: 2rem 0;
}



/* 详情页底部评论区 */
.detail-comments-section {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}
.detail-comments-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}
.detail-comment-item {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}
.detail-comment-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
/* 移动端浮动按钮缩小 */
@media (max-width: 480px) {
    .detail-float-btns {
        bottom: 1rem;
        right: 1rem;
        gap: 0.5rem;
    }
    .float-btn {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }
}

/* 版权标识 */
.copyright-notice {
    text-align: center;
    color: #999;
    font-size: 12px;
    margin-top: 40px;
    padding-bottom: 20px;
}

/* 全站底部 Footer */
.site-footer {
    margin-top: 3rem;
    padding: 2rem 1rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Logo Image Styling */
.nav-logo {
    display: block;
    height: 32px;
    width: auto;
    object-fit: contain;
}