/* ============================================================
 * Twikoo 评论区 —— Material Design 3 Expressive 风格覆盖
 * 通过覆盖 Twikoo(tk-*)与 Element UI(el-*)默认样式,
 * 使评论区与主题配色/圆角/动效保持一致,并自动适配亮暗模式。
 * ============================================================ */

/* ===== 外层容器 ===== */
#tcomment {
    --tk-radius-lg: 24px;
    --tk-radius-md: 18px;
    --tk-radius-sm: 12px;
    --tk-radius-pill: 999px;
    color: var(--s-color-on-surface);
    font-family: var(--materialis-font-family, inherit);
    font-size: 0.92rem;
    line-height: 1.65;
}

#tcomment .tk-comments {
    margin: 0;
}

/* ===== 标题栏(评论数) ===== */
#tcomment .tk-comments-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 0 18px;
    padding: 0;
    font-size: 0.95rem;
    color: var(--s-color-on-surface);
}

#tcomment .tk-comments-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--tk-radius-pill);
    background: var(--s-color-secondary-container);
    color: var(--s-color-on-secondary-container);
    font-size: 0.82rem;
    font-weight: 600;
}

#tcomment .tk-comments-count span:first-child {
    font-variant-numeric: tabular-nums;
}

#tcomment .tk-comments-count b,
#tcomment .tk-comments-count strong {
    font-weight: 700;
}

/* ===== 评论列表 ===== */
#tcomment .tk-comments-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 单条评论卡片 */
#tcomment .tk-comment {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin: 0;
    padding: 16px 18px;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 52%, transparent);
    border-radius: var(--tk-radius-lg);
    background: var(--s-color-surface-container);
    transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

#tcomment .tk-comment:hover {
    background: var(--s-color-surface-container-high);
    border-color: color-mix(in srgb, var(--s-color-primary) 28%, transparent);
}

/* 嵌套回复:弱化层级,不再重复卡片边框 */
#tcomment .tk-replies {
    margin-top: 12px;
    padding-left: 14px;
    border-left: 2px solid color-mix(in srgb, var(--s-color-primary) 30%, transparent);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#tcomment .tk-replies .tk-comment {
    padding: 12px 14px;
    border-radius: var(--tk-radius-md);
    background: var(--s-color-surface-container-low);
}

#tcomment .tk-replies .tk-comment:hover {
    background: var(--s-color-surface-container);
}

/* ===== 头像 ===== */
#tcomment .tk-avatar {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    margin: 0;
    border-radius: 50%;
    overflow: hidden;
    background: var(--s-color-primary-container);
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 45%, transparent);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#tcomment .tk-comment:hover > .tk-avatar {
    transform: scale(1.06);
}

#tcomment .tk-avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    border: none;
}

#tcomment .tk-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

/* ===== 主内容区 ===== */
#tcomment .tk-main {
    flex: 1;
    min-width: 0;
}

/* 昵称 / 时间行 */
#tcomment .tk-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    min-height: 0;
}

#tcomment .tk-row.first,
#tcomment .tk-row:first-child {
    margin-bottom: 6px;
}

#tcomment .tk-nick {
    font-size: 0.9rem;
    font-weight: 650;
    color: var(--s-color-on-surface);
    line-height: 1.4;
    text-decoration: none;
}

#tcomment a.tk-nick:hover {
    color: var(--s-color-primary);
}

/* 博主 / 标签徽章 */
#tcomment .tk-tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: var(--tk-radius-pill);
    background: var(--s-color-primary-container);
    color: var(--s-color-on-primary-container);
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1.6;
}

#tcomment .tk-tag.tk-tag-green {
    background: var(--s-color-tertiary-container);
    color: var(--s-color-on-tertiary-container);
}

#tcomment .tk-time {
    font-size: 0.76rem;
    color: var(--s-color-on-surface-variant);
    opacity: 0.8;
    font-variant-numeric: tabular-nums;
}

/* 评论正文 */
#tcomment .tk-content {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.72;
    color: var(--s-color-on-surface);
    overflow-wrap: anywhere;
}

#tcomment .tk-content p {
    margin: 0 0 0.6em;
}

#tcomment .tk-content p:last-child {
    margin-bottom: 0;
}

#tcomment .tk-content a {
    color: var(--s-color-primary);
    text-decoration: none;
    border-bottom: 1px dashed color-mix(in srgb, var(--s-color-primary) 55%, transparent);
}

#tcomment .tk-content a:hover {
    opacity: 0.82;
}

#tcomment .tk-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--tk-radius-sm);
    display: block;
    margin: 8px 0;
}

#tcomment .tk-content code {
    padding: 2px 6px;
    border-radius: 6px;
    background: var(--s-color-surface-container-highest);
    font-family: var(--materialis-font-family-mono, monospace);
    font-size: 0.86em;
}

#tcomment .tk-content pre {
    padding: 14px 16px;
    border-radius: var(--tk-radius-md);
    background: var(--s-color-surface-container-highest);
    overflow-x: auto;
}

#tcomment .tk-content pre code {
    padding: 0;
    background: transparent;
}

#tcomment .tk-content blockquote {
    margin: 8px 0;
    padding: 8px 14px;
    border-left: 3px solid var(--s-color-primary);
    border-radius: 0 var(--tk-radius-sm) var(--tk-radius-sm) 0;
    background: color-mix(in srgb, var(--s-color-surface-container-highest) 70%, transparent);
    color: var(--s-color-on-surface-variant);
}

/* @提及 */
#tcomment .tk-content .tk-ruser {
    color: var(--s-color-primary);
    font-weight: 550;
}

/* ===== 操作区(点赞/回复等) ===== */
#tcomment .tk-action {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin: 0;
}

#tcomment .tk-action-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    min-height: 30px;
    margin: 0;
    padding: 4px 10px;
    border-radius: var(--tk-radius-pill);
    color: var(--s-color-on-surface-variant);
    font-size: 0.78rem;
    cursor: pointer;
    transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

#tcomment .tk-action-icon:hover {
    background: color-mix(in srgb, var(--s-color-primary) 12%, transparent);
    color: var(--s-color-primary);
    transform: translateY(-1px);
}

#tcomment .tk-action-icon svg,
#tcomment .tk-action-icon i {
    width: 15px;
    height: 15px;
}

#tcomment .tk-action-icon.tk-action-icon-dark {
    background: color-mix(in srgb, var(--s-color-primary) 14%, transparent);
    color: var(--s-color-primary);
}

/* 行内操作行 */
#tcomment .tk-row.actions,
#tcomment .tk-row:last-child {
    margin-top: 8px;
    gap: 6px;
}

#tcomment .tk-admin {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

#tcomment .tk-admin-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: var(--s-color-on-surface-variant);
    cursor: pointer;
    transition: background-color 0.25s ease, color 0.25s ease;
}

#tcomment .tk-admin-icon:hover {
    background: color-mix(in srgb, var(--s-color-primary) 12%, transparent);
    color: var(--s-color-primary);
}

/* 展开/收起回复 */
#tcomment .tk-replies-expand {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
    padding: 5px 12px;
    border-radius: var(--tk-radius-pill);
    background: var(--s-color-surface-container-high);
    color: var(--s-color-primary);
    font-size: 0.78rem;
    font-weight: 550;
    cursor: pointer;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

#tcomment .tk-replies-expand:hover {
    background: color-mix(in srgb, var(--s-color-primary) 14%, transparent);
    transform: translateY(-1px);
}

/* ===== 提交区 ===== */
#tcomment .tk-submit {
    margin-top: 20px;
    padding: 18px;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 52%, transparent);
    border-radius: var(--tk-radius-lg);
    background: var(--s-color-surface-container);
}

#tcomment .tk-submit .tk-avatar {
    width: 40px;
    height: 40px;
}

#tcomment .tk-input {
    flex: 1;
    min-width: 0;
    position: relative;
}

/* 文本域:MD3 filled text field 观感 */
#tcomment .tk-input textarea,
#tcomment .el-textarea__inner {
    width: 100%;
    min-height: 88px !important;
    padding: 14px 16px !important;
    box-sizing: border-box;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 62%, transparent) !important;
    border-radius: var(--tk-radius-md) !important;
    background: var(--s-color-surface-container-high) !important;
    color: var(--s-color-on-surface) !important;
    font-family: inherit !important;
    font-size: 0.9rem !important;
    line-height: 1.65 !important;
    box-shadow: none !important;
    resize: vertical;
    transition: border-color 0.25s ease, background-color 0.25s ease;
}

#tcomment .tk-input textarea:focus,
#tcomment .el-textarea__inner:focus {
    border-color: var(--s-color-primary) !important;
    background: var(--s-color-surface-container-highest) !important;
    outline: none !important;
}

#tcomment .tk-input textarea::placeholder,
#tcomment .el-textarea__inner::placeholder {
    color: var(--s-color-on-surface-variant);
    opacity: 0.7;
}

/* 昵称/邮箱/网址输入框 */
#tcomment .tk-extend {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

#tcomment .el-input {
    flex: 1 1 180px;
    min-width: 0;
}

#tcomment .el-input__inner {
    width: 100%;
    height: 44px !important;
    padding: 0 16px !important;
    box-sizing: border-box;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 62%, transparent) !important;
    border-radius: var(--tk-radius-pill) !important;
    background: var(--s-color-surface-container-high) !important;
    color: var(--s-color-on-surface) !important;
    font-family: inherit !important;
    font-size: 0.88rem !important;
    box-shadow: none !important;
    transition: border-color 0.25s ease, background-color 0.25s ease;
}

#tcomment .el-input__inner:focus {
    border-color: var(--s-color-primary) !important;
    background: var(--s-color-surface-container-highest) !important;
}

#tcomment .el-input__inner::placeholder {
    color: var(--s-color-on-surface-variant);
    opacity: 0.7;
}

/* 按钮:MD3 filled / tonal */
#tcomment .tk-send,
#tcomment .el-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 40px;
    height: auto !important;
    padding: 8px 20px !important;
    border: none !important;
    border-radius: var(--tk-radius-pill) !important;
    background: var(--s-color-primary) !important;
    color: var(--s-color-on-primary) !important;
    font-family: inherit !important;
    font-size: 0.86rem !important;
    font-weight: 600 !important;
    line-height: 1.2 !important;
    cursor: pointer;
    box-shadow: none !important;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
                background-color 0.25s ease, opacity 0.25s ease;
}

#tcomment .tk-send:hover,
#tcomment .el-button:hover {
    transform: translateY(-2px);
    opacity: 0.92;
}

#tcomment .tk-send:active,
#tcomment .el-button:active {
    transform: translateY(0) scale(0.98);
}

/* 次要按钮(预览等) */
#tcomment .tk-preview,
#tcomment .el-button--default,
#tcomment .el-button:not(.el-button--primary) {
    background: var(--s-color-secondary-container) !important;
    color: var(--s-color-on-secondary-container) !important;
}

#tcomment .el-button--text {
    background: transparent !important;
    color: var(--s-color-primary) !important;
    padding: 6px 12px !important;
}

/* 提交区操作行 */
#tcomment .tk-submit .tk-row.actions {
    margin-top: 12px;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== OwO 表情面板 ===== */
#tcomment .OwO {
    margin-top: 10px;
}

#tcomment .OwO .OwO-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--s-color-surface-container-high);
    color: var(--s-color-on-surface-variant);
    font-size: 1rem;
    transition: background-color 0.25s ease, color 0.25s ease;
}

#tcomment .OwO .OwO-logo:hover {
    background: color-mix(in srgb, var(--s-color-primary) 14%, transparent);
    color: var(--s-color-primary);
}

#tcomment .OwO .OwO-body {
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 55%, transparent) !important;
    border-radius: var(--tk-radius-md) !important;
    background: var(--s-color-surface-container-high) !important;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12) !important;
    overflow: hidden;
}

#tcomment .OwO .OwO-body .OwO-items {
    max-height: 220px !important;
    background: transparent !important;
    scrollbar-width: thin;
}

#tcomment .OwO .OwO-body .OwO-items .OwO-item {
    border-radius: var(--tk-radius-sm);
    transition: background-color 0.2s ease, transform 0.2s ease;
}

#tcomment .OwO .OwO-body .OwO-items .OwO-item:hover {
    background: color-mix(in srgb, var(--s-color-primary) 12%, transparent) !important;
    transform: scale(1.12);
}

#tcomment .OwO .OwO-body .OwO-bar {
    background: var(--s-color-surface-container) !important;
    border-top: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 45%, transparent);
    color: var(--s-color-on-surface) !important;
}

#tcomment .OwO .OwO-body .OwO-bar .OwO-item {
    border-radius: 0;
}

/* ===== 加载 / 空状态 / 页码 ===== */
#tcomment .tk-loading,
#tcomment .tk-comments-title .tk-loading {
    color: var(--s-color-on-surface-variant);
}

#tcomment .tk-footer {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 45%, transparent);
    font-size: 0.78rem;
    color: var(--s-color-on-surface-variant);
    opacity: 0.85;
}

#tcomment .tk-footer a {
    color: var(--s-color-primary);
    text-decoration: none;
}

#tcomment .tk-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}

#tcomment .tk-pagination button,
#tcomment .tk-pagination .tk-pagination-item {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 55%, transparent);
    border-radius: var(--tk-radius-pill);
    background: var(--s-color-surface-container);
    color: var(--s-color-on-surface);
    font-size: 0.82rem;
    cursor: pointer;
    transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

#tcomment .tk-pagination button:hover {
    transform: translateY(-2px);
    background: var(--s-color-surface-container-high);
}

#tcomment .tk-pagination .tk-pagination-item.active {
    background: var(--s-color-primary);
    color: var(--s-color-on-primary);
    border-color: transparent;
}

/* ===== Element UI 弹层 / 提示适配 ===== */
.tk-message,
.el-message {
    border-radius: var(--tk-radius-pill) !important;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 50%, transparent) !important;
    background: var(--s-color-surface-container-high) !important;
    color: var(--s-color-on-surface) !important;
    font-family: var(--materialis-font-family, inherit) !important;
}

.el-popover,
.el-dropdown-menu {
    border-radius: 16px !important;
    border: 1px solid color-mix(in srgb, var(--s-color-outline-variant) 50%, transparent) !important;
    background: var(--s-color-surface-container-high) !important;
    color: var(--s-color-on-surface) !important;
}

/* 代码高亮区域内的滚动条 */
#tcomment .tk-content pre::-webkit-scrollbar {
    height: 6px;
}

#tcomment .tk-content pre::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--s-color-outline-variant) 45%, transparent);
    border-radius: 999px;
}

/* ===== 响应式 ===== */
@media (max-width: 600px) {
    #tcomment {
        font-size: 0.88rem;
    }

    #tcomment .tk-comment {
        padding: 13px 14px;
        gap: 10px;
        border-radius: var(--tk-radius-md);
    }

    #tcomment .tk-avatar {
        width: 36px;
        height: 36px;
    }

    #tcomment .tk-submit {
        padding: 14px;
        border-radius: var(--tk-radius-md);
    }

    #tcomment .tk-replies {
        padding-left: 10px;
    }

    #tcomment .el-input {
        flex: 1 1 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    #tcomment .tk-comment,
    #tcomment .tk-avatar,
    #tcomment .tk-action-icon,
    #tcomment .tk-send,
    #tcomment .el-button,
    #tcomment .OwO .OwO-body .OwO-items .OwO-item {
        transition: none !important;
        transform: none !important;
    }
}