/* ===== 留言系统 + 图片弹幕 — 暗色策展人空间风格 ===== */

/* ---- 根容器 ---- */
.cs-root {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 0;
}

.cs-header {
    text-align: center;
    margin-bottom: 32px;
}
.cs-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #e8ecf1;
    margin-bottom: 6px;
}
.cs-subtitle {
    font-size: 0.78rem;
    color: #6e7a94;
    margin: 0;
}

/* ---- 发表表单 ---- */
.cs-form-wrap {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 32px;
    padding: 24px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
}
.cs-avatar-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}
.cs-avatar-preview img {
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.08);
    width: 44px;
    height: 44px;
}
.cs-nickname-preview {
    font-size: 0.68rem;
    color: #6e7a94;
    max-width: 60px;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.cs-form {
    flex: 1;
    min-width: 0;
}
.cs-textarea {
    width: 100%;
    min-height: 80px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px;
    font-size: 0.9rem;
    color: #e8ecf1;
    font-family: 'Noto Sans SC', system-ui, sans-serif;
    resize: vertical;
    outline: none;
    transition: border-color 0.25s ease, background 0.25s ease;
    box-sizing: border-box;
}
.cs-textarea:focus {
    border-color: rgba(0,204,0,0.25);
    background: rgba(0,204,0,0.04);
    outline: none;
}
.cs-textarea::placeholder {
    color: #6a7a90;
    font-size: 0.82rem;
}
.cs-form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
    gap: 10px;
}
.cs-char-count {
    font-size: 0.72rem;
    color: #6e7a94;
}
.cs-btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px;
    color: #9aa4b8;
    font-size: 0.75rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.25s ease;
}
.cs-btn-ghost:hover {
    border-color: #00cc00;
    color: #00cc00;
    background: rgba(0,204,0,0.06);
}
.cs-btn-submit {
    display: inline-flex;
    align-items: center;
    padding: 8px 22px;
    background: #00cc00;
    color: #000;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    border: none;
    border-radius: 10px;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.25s ease, transform 0.25s ease;
    white-space: nowrap;
}
.cs-btn-submit:hover {
    background: #00dd00;
    transform: scale(1.02);
}
.cs-btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ---- 留言列表 ---- */
.cs-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.cs-empty {
    text-align: center;
    padding: 40px 20px;
    color: #6e7a94;
}
.cs-empty i {
    font-size: 2rem;
    color: rgba(0,204,0,0.15);
    margin-bottom: 12px;
    display: block;
}
.cs-empty p {
    font-size: 0.85rem;
    margin: 0;
}
.cs-item {
    display: flex;
    gap: 14px;
    padding: 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    transition: border-color 0.25s ease;
}
.cs-item:hover {
    border-color: rgba(0,204,0,0.15);
}
.cs-avatar {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}
.cs-item-body {
    flex: 1;
    min-width: 0;
}
.cs-item-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
}
.cs-item-name {
    font-size: 0.85rem;
    color: #e8ecf1;
    font-weight: 600;
}
.cs-item-time {
    font-size: 0.7rem;
    color: #6e7a94;
    flex-shrink: 0;
}
.cs-item-content {
    font-size: 0.9rem;
    color: #9aa4b8;
    line-height: 1.75;
    margin: 0;
    word-break: break-word;
}

/* ---- 回复 ---- */
.cs-item-reply {
    padding-left: 56px;
    border-left: 1px solid rgba(255,255,255,0.06);
}
.cs-reply-mention {
    color: #00cc00;
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    margin-right: 2px;
}
.cs-reply-mention em {
    font-style: normal;
    font-weight: 600;
}
.cs-reply-btn {
    display: inline-flex;
    align-items: center;
    margin-top: 8px;
    padding: 0;
    background: none;
    border: none;
    color: #6e7a94;
    font-size: 0.72rem;
    font-family: inherit;
    cursor: pointer;
    transition: color 0.2s ease;
}
.cs-reply-btn:hover {
    color: #00cc00;
}
.cs-reply-form {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.cs-reply-textarea {
    width: 100%;
    min-height: 52px;
    padding: 10px 14px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    font-size: 0.82rem;
    color: #e8ecf1;
    font-family: 'Noto Sans SC', system-ui, sans-serif;
    resize: vertical;
    outline: none;
    transition: border-color 0.25s ease;
    box-sizing: border-box;
}
.cs-reply-textarea:focus {
    border-color: rgba(0,204,0,0.25);
    background: rgba(0,204,0,0.04);
    outline: none;
}
.cs-reply-textarea::placeholder {
    color: #6a7a90;
    font-size: 0.78rem;
}
.cs-reply-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 6px;
}
.cs-reply-cancel {
    padding: 4px 12px;
    background: none;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: #9aa4b8;
    font-size: 0.72rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}
.cs-reply-cancel:hover {
    border-color: rgba(255,255,255,0.2);
    color: #e8ecf1;
}

@media (max-width: 768px) {
    .cs-item-reply {
        padding-left: 28px;
    }
    .cs-reply-textarea {
        font-size: 16px;
    }
}

/* ---- 弹幕 Canvas 覆盖层 ---- */
.cs-bullet-canvas {
    border-radius: inherit;
}

/* ---- 移动端适配 ---- */
@media (max-width: 768px) {
    .cs-root {
        padding: 28px 0;
        width: 100%;
        box-sizing: border-box;
        margin: 0 auto;
    }
    .cs-form-wrap {
        flex-direction: column;
        padding: 16px;
        gap: 12px;
        width: 100%;
        box-sizing: border-box;
        margin: 0 auto 32px;
    }
    .cs-form {
        width: 100%;
    }
    .cs-avatar-preview {
        flex-direction: row;
        gap: 10px;
        width: 100%;
    }
    .cs-avatar-preview img {
        width: 36px;
        height: 36px;
    }
    .cs-nickname-preview {
        font-size: 0.82rem;
        max-width: none;
        color: #9aa4b8;
    }
    .cs-textarea {
        width: 100%;
        box-sizing: border-box;
    }
    .cs-form-actions {
        flex-wrap: wrap;
    }
    .cs-btn-ghost {
        order: 1;
    }
    .cs-char-count {
        order: 2;
        margin-left: auto;
    }
    .cs-btn-submit {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    .cs-list {
        width: 100%;
    }
    .cs-item {
        padding: 14px;
        gap: 10px;
        width: 100%;
        box-sizing: border-box;
    }
    .cs-item-name {
        font-size: 0.82rem;
    }
    .cs-item-content {
        font-size: 0.85rem;
    }
    .cs-reply-form {
        width: 100%;
        box-sizing: border-box;
    }
    .cs-reply-textarea {
        width: 100%;
        box-sizing: border-box;
    }
    .cs-bullet-canvas {
        display: none;
    }
}