/**
 * AI 工具广场 — 前台样式
 *
 * 采用 .ds-tool-* 前缀做主题冲突隔离（与 wpai-style.css 的 COMPAT-A 思路一致），
 * 并复用 --ds-chat-* 设计变量：主题只需覆盖变量即可换肤，无需改本文件。
 */

.ds-tool {
    --ds-tool-surface: var(--ds-chat-surface, #ffffff);
    --ds-tool-border: var(--ds-chat-border, rgba(15, 23, 42, 0.12));
    --ds-tool-accent: var(--ds-chat-accent, #4f46e5);
    --ds-tool-text: var(--ds-chat-text, #1f2328);
    --ds-tool-muted: var(--ds-chat-muted, #6b7280);
    --ds-tool-radius: 12px;

    box-sizing: border-box;
    max-width: 880px;
    margin: 0 auto;
    padding: 24px;
    background: var(--ds-tool-surface);
    border: 1px solid var(--ds-tool-border);
    border-radius: var(--ds-tool-radius);
    color: var(--ds-tool-text);
    font-size: 15px;
    line-height: 1.6;
}

.ds-tool *,
.ds-tool *::before,
.ds-tool *::after {
    box-sizing: border-box;
}

/* ---------- 头部 ---------- */

.ds-tool-head {
    margin-bottom: 18px;
}

.ds-tool-title {
    margin: 0 0 6px;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.35;
}

.ds-tool-desc {
    margin: 0;
    color: var(--ds-tool-muted);
    font-size: 14px;
}

/* ---------- 输入区 ---------- */

.ds-tool-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
}

.ds-tool-input {
    display: block;
    width: 100%;
    min-height: 96px;
    padding: 12px 14px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 10px;
    background: var(--ds-tool-surface);
    color: var(--ds-tool-text);
    font-size: 15px;
    font-family: inherit;
    line-height: 1.6;
    resize: vertical;
    transition: border-color .15s ease;
}

.ds-tool-input:focus {
    outline: none;
    border-color: var(--ds-tool-accent);
}

.ds-tool-input:disabled {
    opacity: .6;
}

.ds-tool-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.ds-tool-example {
    padding: 5px 12px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 999px;
    background: transparent;
    color: var(--ds-tool-muted);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: all .15s ease;
}

.ds-tool-example:hover {
    border-color: var(--ds-tool-accent);
    color: var(--ds-tool-accent);
}

.ds-tool-submit-row {
    margin-top: 16px;
}

.ds-tool-submit {
    padding: 11px 28px;
    border: 0;
    border-radius: 10px;
    background: var(--ds-tool-accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: opacity .15s ease;
}

.ds-tool-submit:hover:not(:disabled) {
    opacity: .9;
}

.ds-tool-submit:disabled {
    opacity: .55;
    cursor: not-allowed;
}

/* 触控设备：热区不低于 40px（沿用 wpai-style.css COMPAT-D 的约定） */
@media (hover: none) and (pointer: coarse) {
    .ds-tool-submit,
    .ds-tool-example {
        min-height: 40px;
    }
}

.ds-tool-error {
    margin: 12px 0 0;
    color: #dc2626;
    font-size: 14px;
}

/* ---------- 结果区 ---------- */

.ds-tool-result {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--ds-tool-border);
}

.ds-tool-result-inner {
    font-size: 15px;
    line-height: 1.75;
    word-break: break-word;
}

/* 流式输出中的光标 */
.ds-tool-result-inner.is-streaming::after {
    content: '';
    display: inline-block;
    width: 7px;
    height: 16px;
    margin-left: 3px;
    background: var(--ds-tool-accent);
    vertical-align: text-bottom;
    animation: ds-tool-blink 1s steps(2, start) infinite;
}

@keyframes ds-tool-blink {
    to { visibility: hidden; }
}

/* 正文元素隔离：只还原气泡内被全局样式清掉的列表/标题样式 */
.ds-tool-result-inner h1,
.ds-tool-result-inner h2,
.ds-tool-result-inner h3,
.ds-tool-result-inner h4 {
    margin: 18px 0 8px;
    font-weight: 700;
    line-height: 1.4;
}

.ds-tool-result-inner h1 { font-size: 20px; }
.ds-tool-result-inner h2 { font-size: 18px; }
.ds-tool-result-inner h3 { font-size: 16px; }

.ds-tool-result-inner ul,
.ds-tool-result-inner ol {
    margin: 10px 0;
    padding-left: 24px;
    list-style: revert;
}

.ds-tool-result-inner li {
    margin: 4px 0;
}

.ds-tool-result-inner p {
    margin: 10px 0;
}

.ds-tool-result-inner code {
    padding: 2px 6px;
    border-radius: 4px;
    background: rgba(100, 116, 139, .15);
    font-size: 13px;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.ds-tool-result-inner pre {
    margin: 12px 0;
    padding: 14px;
    border-radius: 8px;
    background: rgba(15, 23, 42, .06);
    overflow-x: auto;
}

.ds-tool-result-inner pre code {
    padding: 0;
    background: transparent;
}

.ds-tool-result-inner blockquote {
    margin: 12px 0;
    padding-left: 14px;
    border-left: 3px solid var(--ds-tool-accent);
    color: var(--ds-tool-muted);
}

.ds-tool-result-inner table {
    width: 100%;
    margin: 12px 0;
    border-collapse: collapse;
}

.ds-tool-result-inner th,
.ds-tool-result-inner td {
    padding: 8px 10px;
    border: 1px solid var(--ds-tool-border);
    text-align: left;
}

.ds-tool-result-inner a {
    color: var(--ds-tool-accent);
}

/* ---------- 操作条 ---------- */

.ds-tool-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}

.ds-tool-copy,
.ds-tool-retry {
    padding: 8px 16px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 8px;
    background: transparent;
    color: var(--ds-tool-text);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
}

.ds-tool-copy:hover,
.ds-tool-retry:hover {
    border-color: var(--ds-tool-accent);
    color: var(--ds-tool-accent);
}

/* ---------- ② 图片工具结果区 ---------- */

.ds-tool-result-image {
    text-align: center;
}

.ds-tool-image {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    border: 1px solid var(--ds-tool-border);
    border-radius: 10px;
    background: var(--ds-tool-surface);
}

.ds-tool-image-meta {
    margin: 10px 0 0;
    color: var(--ds-tool-muted);
    font-size: 12px;
}

/* 出图慢（10~30s），占位态必须明确，否则用户以为卡死 */
.ds-tool-image-pending {
    padding: 40px 16px;
    border: 1px dashed var(--ds-tool-border);
    border-radius: 10px;
    color: var(--ds-tool-muted);
    font-size: 14px;
    text-align: center;
}

.ds-tool-image-pending::after {
    content: '';
    display: block;
    width: 36px;
    height: 3px;
    margin: 14px auto 0;
    border-radius: 2px;
    background: var(--ds-tool-accent);
    opacity: .35;
    animation: ds-tool-image-pulse 1.1s ease-in-out infinite;
}

@keyframes ds-tool-image-pulse {
    0%, 100% { transform: scaleX(.4); opacity: .25; }
    50%      { transform: scaleX(1);  opacity: .7; }
}

.ds-tool-download,
.ds-tool-open {
    padding: 8px 16px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 8px;
    background: transparent;
    color: var(--ds-tool-text);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
}

.ds-tool-download:hover:not(:disabled),
.ds-tool-open:hover {
    border-color: var(--ds-tool-accent);
    color: var(--ds-tool-accent);
}

.ds-tool-download:disabled {
    opacity: .55;
    cursor: default;
}

/* ---------- 未找到工具（仅管理员可见） ---------- */

.ds-tool-missing {
    padding: 14px 16px;
    border: 1px dashed #dc2626;
    border-radius: 8px;
    color: #dc2626;
    font-size: 14px;
}

/* ---------- 工具广场（聚合页） ---------- */

.ds-tool-plaza {
    --ds-tool-plaza-gap: 16px;
    --ds-tool-surface: var(--ds-chat-surface, #ffffff);
    --ds-tool-border: var(--ds-chat-border, rgba(15, 23, 42, 0.12));
    --ds-tool-accent: var(--ds-chat-accent, #4f46e5);
    --ds-tool-text: var(--ds-chat-text, #1f2328);
    --ds-tool-muted: var(--ds-chat-muted, #6b7280);

    color: var(--ds-tool-text);
    font-size: 15px;
    line-height: 1.6;
}

.ds-tool-plaza *,
.ds-tool-plaza *::before,
.ds-tool-plaza *::after {
    box-sizing: border-box;
}

.ds-tool-plaza-head {
    margin-bottom: 20px;
}

.ds-tool-plaza-title {
    margin: 0 0 6px;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
}

.ds-tool-plaza-desc {
    margin: 0;
    color: var(--ds-tool-muted);
    font-size: 15px;
}

.ds-tool-plaza-grid {
    display: grid;
    grid-template-columns: repeat(var(--ds-tool-plaza-columns, 3), minmax(0, 1fr));
    gap: var(--ds-tool-plaza-gap);
}

.ds-tool-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 132px;
    padding: 18px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 12px;
    background: var(--ds-tool-surface);
    color: inherit;
    text-decoration: none;
    transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}

.ds-tool-card:hover,
.ds-tool-card:focus-visible {
    border-color: var(--ds-tool-accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(15, 23, 42, .08);
}

.ds-tool-card-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.4;
}

.ds-tool-card-desc {
    color: var(--ds-tool-muted);
    font-size: 13.5px;
    line-height: 1.55;
}

.ds-tool-card-meta {
    margin-top: auto;
    padding-top: 8px;
    color: var(--ds-tool-muted);
    font-size: 12px;
}

.ds-tool-plaza-count {
    margin: 18px 0 0;
    color: var(--ds-tool-muted);
    font-size: 13px;
    text-align: center;
}

.ds-tool-plaza-empty {
    margin: 0;
    padding: 28px 16px;
    border: 1px dashed var(--ds-tool-border);
    border-radius: 12px;
    color: var(--ds-tool-muted);
    text-align: center;
}

.ds-tool-plaza-empty-admin {
    margin-top: 10px;
    padding: 0;
    border: 0;
    font-size: 12px;
}

.ds-tool-plaza-back {
    margin: 0 0 14px;
    font-size: 14px;
}

.ds-tool-plaza-back a {
    color: var(--ds-tool-muted);
    text-decoration: none;
}

.ds-tool-plaza-back a:hover {
    color: var(--ds-tool-accent);
}

/* ---------- 移动端 ---------- */

@media (max-width: 600px) {
    .ds-tool {
        padding: 16px;
        border-radius: 10px;
    }

    .ds-tool-title {
        font-size: 19px;
    }

    .ds-tool-submit {
        width: 100%;
    }

    .ds-tool-actions {
        flex-wrap: wrap;
    }

    .ds-tool-copy,
    .ds-tool-retry,
    .ds-tool-download,
    .ds-tool-open {
        flex: 1;
        min-width: 120px;
    }

    .ds-tool-image-pending {
        padding: 28px 12px;
    }

    /* 窄屏直接降为单列/双列，卡片才不会被压成一条 */
    .ds-tool-plaza {
        --ds-tool-plaza-gap: 12px;
    }

    .ds-tool-plaza-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }

    .ds-tool-plaza-title {
        font-size: 20px;
    }

    .ds-tool-card {
        min-height: 0;
        padding: 15px;
    }
}

@media (max-width: 420px) {
    .ds-tool-plaza-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

/* ---------- 暗色主题 ---------- */

.ds-dark .ds-tool,
.ds-tool.ds-dark,
.ds-dark .ds-tool-plaza,
.ds-tool-plaza.ds-dark {
    --ds-tool-surface: #1b1f27;
    --ds-tool-border: rgba(255, 255, 255, 0.14);
    --ds-tool-text: #e5e7eb;
    --ds-tool-muted: #9ca3af;
}

.ds-dark .ds-tool-card:hover,
.ds-tool-plaza.ds-dark .ds-tool-card:hover {
    box-shadow: 0 6px 18px rgba(0, 0, 0, .35);
}

.ds-dark .ds-tool-result-inner pre,
.ds-tool.ds-dark .ds-tool-result-inner pre {
    background: rgba(255, 255, 255, .07);
}

/* ============================================================
   ⑥ 三张好牌 · 牌③：图片工具的比例选择与种子复现
   ============================================================ */
.ds-tool-ratio-row {
    margin: 10px 0 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ds-tool-ratio-label {
    font-size: 12px;
    color: var(--ds-tool-muted);
}

.ds-tool-ratio {
    font-size: 12px;
    line-height: 1;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--ds-tool-border);
    background: var(--ds-tool-surface);
    color: inherit;
}

.ds-tool-reseed[hidden] {
    display: none;
}

/* ---------- ⑥ 牌③ P2：一次出多张 ---------- */

.ds-tool-batch-row {
    margin: 10px 0 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ds-tool-batch-label {
    font-size: 12px;
    color: var(--ds-tool-muted);
}

.ds-tool-batch {
    font-size: 12px;
    line-height: 1;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--ds-tool-border);
    background: var(--ds-tool-surface);
    color: inherit;
}

/*
 * 自适应网格，不写死列数：
 * 1 张时占满一行（和升级前单张效果一致），2/4 张时自然分成 2 列。
 */
.ds-tool-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.ds-tool-image-cell {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 10px;
    background: var(--ds-tool-surface);
    min-height: 140px;
    justify-content: center;
}

.ds-tool-image-cell.is-ready {
    border-style: solid;
}

.ds-tool-image-cell.is-pending {
    border-style: dashed;
}

.ds-tool-image-cell.is-failed {
    border-style: dashed;
    border-color: var(--ds-tool-error, #d9534f);
}

.ds-tool-image-cell-pending,
.ds-tool-image-cell-failed {
    color: var(--ds-tool-muted);
    font-size: 13px;
}

.ds-tool-image-cell-failed {
    color: var(--ds-tool-error, #d9534f);
}

/* 格子里的图：不能超出格子，也不能被压扁 */
.ds-tool-image-cell .ds-tool-image {
    width: 100%;
    margin: 0;
}

.ds-tool-image-cell-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    margin-top: 8px;
}

.ds-tool-image-cell-actions button {
    padding: 4px 10px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 6px;
    background: transparent;
    color: var(--ds-tool-text);
    font-size: 12px;
    font-family: inherit;
    line-height: 1.4;
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
}

.ds-tool-image-cell-actions button:hover {
    border-color: var(--ds-tool-accent);
    color: var(--ds-tool-accent);
}

.ds-tool-batch-progress {
    margin: 12px 0 0;
    color: var(--ds-tool-muted);
    font-size: 12px;
    text-align: center;
}

.ds-tool-batch-progress:empty {
    display: none;
}

@media (max-width: 520px) {
    .ds-tool-image-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   4.15.0 视频工具（照片生成视频）
   ============================================================ */

/* ---------- 上传区 ---------- */

.ds-tool-upload {
    margin-bottom: 14px;
    padding: 26px 18px;
    border: 1.5px dashed var(--ds-tool-border);
    border-radius: var(--ds-tool-radius);
    background: transparent;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
    outline: none;
}

.ds-tool-upload:hover,
.ds-tool-upload:focus-visible,
.ds-tool-upload.is-dragover {
    border-color: var(--ds-tool-accent);
    background: color-mix(in srgb, var(--ds-tool-accent) 5%, transparent);
}

.ds-tool-upload.has-image {
    padding: 12px;
    border-style: solid;
    cursor: default;
}

.ds-tool-upload-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    pointer-events: none;
}

.ds-tool-upload-icon {
    font-size: 30px;
    line-height: 1;
}

.ds-tool-upload-hint {
    font-size: 14px;
    color: var(--ds-tool-text);
}

.ds-tool-upload-hint strong {
    color: var(--ds-tool-accent);
}

.ds-tool-upload-sub {
    font-size: 12px;
    color: var(--ds-tool-muted);
}

.ds-tool-upload-preview {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ds-tool-upload-thumb {
    display: block;
    max-width: 100%;
    max-height: 260px;
    border-radius: 8px;
}

.ds-tool-upload-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 5px 12px;
    border: 0;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.72);
    color: #fff;
    font-size: 12px;
    font-family: inherit;
    line-height: 1.4;
    cursor: pointer;
    transition: background .15s ease;
}

.ds-tool-upload-remove:hover {
    background: rgba(15, 23, 42, 0.9);
}

/* 上传中：整区降透明度 + 光标等待，提示用户别重复点击 */
.ds-tool-upload.is-uploading {
    opacity: .6;
    cursor: progress;
    pointer-events: none;
}

.ds-tool-upload-url-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.ds-tool-upload-url {
    flex: 1;
    min-width: 0;
    padding: 9px 12px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 8px;
    background: transparent;
    color: var(--ds-tool-text);
    font-size: 14px;
    font-family: inherit;
}

.ds-tool-upload-url:focus {
    outline: none;
    border-color: var(--ds-tool-accent);
}

.ds-tool-upload-url-btn {
    flex-shrink: 0;
    padding: 9px 16px;
    border: 1px solid var(--ds-tool-border);
    border-radius: 8px;
    background: transparent;
    color: var(--ds-tool-text);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
}

.ds-tool-upload-url-btn:hover {
    border-color: var(--ds-tool-accent);
    color: var(--ds-tool-accent);
}

/* 触控设备热区 */
@media (hover: none) and (pointer: coarse) {
    .ds-tool-upload-url-btn,
    .ds-tool-upload-remove {
        min-height: 40px;
    }
}

@media (max-width: 520px) {
    .ds-tool-upload-url-row {
        flex-direction: column;
    }

    .ds-tool-upload-url-btn {
        width: 100%;
    }
}

/* ---------- 游客登录门禁 ---------- */

.ds-tool-login-gate {
    padding: 44px 20px;
    border: 1.5px dashed var(--ds-tool-border);
    border-radius: var(--ds-tool-radius);
    text-align: center;
}

.ds-tool-login-gate-icon {
    margin: 0 0 10px;
    font-size: 40px;
    line-height: 1;
}

.ds-tool-login-gate-text {
    margin: 0 0 16px;
    color: var(--ds-tool-muted);
    font-size: 15px;
}

.ds-tool-login-gate-text strong {
    color: var(--ds-tool-text);
}

.ds-tool-login-btn {
    display: inline-block;
    padding: 10px 30px;
    border: 0;
    border-radius: 10px;
    background: var(--ds-tool-accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: opacity .15s ease;
}

.ds-tool-login-btn:hover {
    opacity: .9;
    color: #fff;
}

/* ---------- 等待占位与结果 ---------- */

.ds-tool-video-pending {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 36px 16px;
    color: var(--ds-tool-muted);
    font-size: 14px;
}

.ds-tool-video-spinner {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    border: 2.5px solid var(--ds-tool-border);
    border-top-color: var(--ds-tool-accent);
    border-radius: 50%;
    animation: ds-tool-spin .8s linear infinite;
}

@keyframes ds-tool-spin {
    to { transform: rotate(360deg); }
}

.ds-tool-result-video {
    text-align: center;
}

.ds-tool-video {
    display: block;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    border-radius: 8px;
    background: #000;
}

@media (prefers-reduced-motion: reduce) {
    .ds-tool-video-spinner {
        animation-duration: 2.4s;
    }
}