/* 工具分类页 - 工具图标列表 */
.tools-grid-tool {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    padding: 20px 0;
}

.tool-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px;
    background: var(--block-bg, #fff);
    border: 1px solid var(--primary-border, #e4e4e4);
    border-radius: 12px;
    text-decoration: none !important;
    color: inherit;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.tool-item:hover {
    border-color: var(--primary, #4a6cf7);
    box-shadow: 0 4px 12px rgba(74, 108, 247, 0.15);
    transform: translateY(-2px);
    text-decoration: none !important;
}

.tool-item-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: #fff;
    font-size: 22px;
}

.tool-item-body {
    flex: 1;
    min-width: 0;
}

.tool-item-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text, #1a1a1a);
    margin-bottom: 4px;
    line-height: 1.4;
    text-decoration: none !important;
}

.tool-item-desc {
    font-size: 13px;
    color: var(--muted-color, #666);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 移动端适配 */
@media (max-width: 767.98px) {
    .tools-grid-tool {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .tool-item {
        padding: 14px;
    }
    
    .tool-item-icon {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

/* 暗色模式适配 */
.dark .tool-item,
.dark-contrast .tool-item {
    background: var(--card-bg, #2a2a2a);
    border-color: var(--border-color, #404040);
}

.dark .tool-item:hover,
.dark-contrast .tool-item:hover {
    border-color: var(--primary, #6c8cff);
}

.dark .tool-item-title,
.dark-contrast .tool-item-title {
    color: var(--text-light, #e8e8e8);
}

.dark .tool-item-desc,
.dark-contrast .tool-item-desc {
    color: var(--muted-color, #999);
}

/* ===== 工具详情页：降 AI 改写（/tool/ai-rewrite） ===== */
.tool-detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 22px;
}
.tool-icon-large {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 14px;
    color: #fff;
    font-size: 26px;
}
.tool-card {
    background: var(--block-bg, #fff);
    border: 1px solid var(--primary-border, #e4e4e4);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    padding: 20px;
}
/* 两栏布局：原文 + 消痕后（PC 左右并排，移动端上下堆叠） */
.rw-columns {
    display: flex;
    gap: 16px;
}
.rw-col {
    display: flex;
    flex-direction: column;
    min-width: 0;
    flex: 1 1 0;
}
.rw-col-input { /* 原文 */ }
.rw-col-output { /* 消痕后 */ }
.rw-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text, #1a1a1a);
    margin-bottom: 8px;
}
.rw-area {
    width: 100%;
    height: 360px;
    padding: 12px 14px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text, #1a1a1a);
    background: var(--control-bg, #f7f9fb);
    border: 1px solid var(--primary-border, #e4e4e4);
    border-radius: 8px;
    resize: none;
    font-family: inherit;
    box-sizing: border-box;
    overflow-y: auto;
}
.rw-area:focus {
    outline: none;
    border-color: var(--primary, #4D698E);
    box-shadow: 0 0 0 3px rgba(77, 105, 142, 0.12);
    background: #fff;
}
.rw-area[readonly] {
    background: var(--control-bg-light, #fafbfc);
}
.rw-count {
    margin-top: 6px;
    font-size: 12px;
    color: var(--muted-color, #999);
    text-align: right;
}
.rw-actions {
    margin-top: 8px;
    display: flex;
    justify-content: flex-end;
}
.rw-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .15s, box-shadow .15s, opacity .15s;
    font-family: inherit;
}
.rw-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
}
.rw-btn-primary {
    background: var(--primary, #4D698E);
    color: #fff;
}
.rw-btn-primary:hover:not(:disabled) {
    background: var(--primary-hover, #3F5A7A);
}
.rw-btn-ghost {
    background: var(--control-bg, #f3f6fa);
    color: var(--text, #333);
    border-color: var(--primary-border, #e4e4e4);
}
.rw-btn-ghost:hover:not(:disabled) {
    background: var(--control-bg-shaded, #e8edf3);
}
.rw-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 16px;
    padding: 14px 0;
    border-top: 1px solid var(--primary-border, #eee);
}
.rw-modes {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.rw-mode {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 15px;
    font-size: 13px;
    color: var(--text, #333);
    background: var(--control-bg, #f3f6fa);
    border: 1px solid var(--primary-border, #e4e4e4);
    border-radius: 999px;
    cursor: pointer;
    transition: all .15s ease;
    user-select: none;
}
.rw-mode input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.rw-mode:has(input:checked) {
    background: var(--primary, #4D698E);
    color: #fff;
    border-color: var(--primary, #4D698E);
}
.rw-msg {
    margin-top: 14px;
    font-size: 13px;
    min-height: 18px;
}
.rw-msg.ok {
    color: #2e9e5b;
}
.rw-msg.error {
    color: #d9534f;
}

/* 暗色模式 */
.dark .tool-card,
.dark-contrast .tool-card {
    background: var(--card-bg, #2a2a2a);
    border-color: var(--border-color, #404040);
}
.dark .rw-area,
.dark-contrast .rw-area {
    background: #232c38;
    color: #e3e9f0;
    border-color: var(--border-color, #404040);
}
.dark .rw-area:focus,
.dark-contrast .rw-area:focus {
    background: #28323f;
    border-color: var(--primary, #6c8cff);
}
.dark .rw-area[readonly],
.dark-contrast .rw-area[readonly] {
    background: #1f2732;
}
.dark .rw-btn-ghost,
.dark-contrast .rw-btn-ghost {
    background: #2a2a2a;
    color: #cfd8e3;
    border-color: var(--border-color, #404040);
}
.dark .rw-btn-ghost:hover:not(:disabled),
.dark-contrast .rw-btn-ghost:hover:not(:disabled) {
    background: #34343a;
}
.dark .rw-mode,
.dark-contrast .rw-mode {
    background: #2a2a2a;
    color: #cfd8e3;
    border-color: var(--border-color, #404040);
}
.dark .rw-mode:has(input:checked),
.dark-contrast .rw-mode:has(input:checked) {
    background: var(--primary, #6c8cff);
    border-color: var(--primary, #6c8cff);
    color: #fff;
}

/* 移动端：两栏变单栏，按钮全宽 */
@media (max-width: 767.98px) {
    .rw-columns {
        flex-direction: column;
    }
    .rw-area {
        height: 240px;
    }
    .rw-diff-view {
        height: 240px;
    }
    .rw-controls {
        flex-direction: column;
        align-items: stretch;
        border-top: none;
        border-bottom: 1px solid var(--primary-border, #eee);
        padding: 8px 0;
        margin: 12px 0 0;
    }
    .rw-controls .rw-btn-primary {
        width: 100%;
    }
    .rw-modes {
        justify-content: center;
    }
    .rw-output-head {
        margin-top: 4px;
    }
}

/* ===== 工具详情页两栏布局（仿内容详情页） ===== */
.product-page {
    margin: 24px auto 48px;
    padding: 0 12px;
    width: auto;
    max-width: 100%;
}
/* Flarum 容器宽度阶梯：与顶部 header .container 外边界对齐 */
@media (min-width: 768px) {
    .product-page { width: min(991.98px, 100%); }
}
@media (min-width: 992px) {
    .product-page { width: min(1099.98px, 100%); }
}
@media (min-width: 1100px) {
    .product-page { width: min(1200px, 100%); }
}
@media (min-width: 1600px) {
    .product-page { width: 1300px; }
}
@media (min-width: 2000px) {
    .product-page { width: 1500px; }
}
.product-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 32px;
    align-items: start;
}
.main-col {
    min-width: 0;
}
.sidebar {
    position: sticky;
    top: 68px;
}
.side-card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    margin-bottom: 16px;
    overflow: hidden;
}
.side-card-head {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    padding: 14px 16px 10px;
}
.side-card-head i {
    color: var(--primary, #4D698E);
    margin-right: 6px;
}
.side-card-body {
    padding: 0 16px 16px;
}
.fee-rule {
    font-size: 13px;
    color: #555;
    line-height: 1.6;
}
.fee-rule b {
    color: var(--primary, #4D698E);
}
.fee-balance {
    font-size: 14px;
    margin-top: 10px;
    color: #333;
}
.fee-balance span {
    font-weight: 700;
    color: var(--primary, #4D698E);
}
.fee-hint {
    font-size: 12px;
    color: var(--muted-color, #999);
    margin-top: 4px;
}
.side-card-list {
    list-style: none;
    padding: 0 16px 14px;
    margin: 0;
}
.side-card-list li {
    font-size: 13px;
    color: #555;
    line-height: 1.55;
    padding: 9px 0;
    border-top: 1px solid #f5f5f5;
}
.side-card-list li:first-child {
    border-top: none;
}

/* 两栏布局暗色模式 */
.dark .side-card,
.dark-contrast .side-card {
    background: #1e1e32;
    border-color: #2a2a3e;
}
.dark .side-card-head,
.dark-contrast .side-card-head {
    color: #c5c9d6;
}
.dark .fee-rule,
.dark-contrast .fee-rule {
    color: #b0b6c4;
}
.dark .fee-balance,
.dark-contrast .fee-balance {
    color: #c5c9d6;
}
.dark .fee-hint,
.dark-contrast .fee-hint {
    color: #7a8794;
}
.dark .side-card-list li,
.dark-contrast .side-card-list li {
    color: #b0b6c4;
    border-top-color: #2a2a3e;
}

/* 两栏布局移动端：单栏 */
@media (max-width: 767.98px) {
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .sidebar {
        position: static;
    }
}

/* ===== 降AI改写：对比视图（红=删除 绿=新增）===== */
.rw-diff-panel {
    margin-top: 16px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
}
.rw-diff-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 14px;
    border-bottom: 1px solid #e5e7eb;
    background: #f9fafb;
    flex-wrap: wrap;
}
.rw-diff-title { font-size: 14px; font-weight: 600; color: #1f2937; }
.rw-diff-legend { font-size: 12px; color: #6b7280; display: inline-flex; align-items: center; gap: 4px; }
.rw-leg { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin: 0 4px 0 10px; }
.rw-leg:first-child { margin-left: 0; }
.rw-leg-del { background: rgba(198, 40, 40, 0.15); border: 1px solid #c62828; }
.rw-leg-ins { background: rgba(27, 94, 32, 0.15); border: 1px solid #1b5e20; }
.rw-diff-toggle { padding: 4px 10px; font-size: 12px; }
.rw-diff-cols { display: grid; grid-template-columns: 1fr 1fr; }
.rw-diff-col { min-width: 0; }
.rw-diff-col + .rw-diff-col { border-left: 1px solid #e5e7eb; }
.rw-diff-coltitle {
    font-size: 12px;
    color: #6b7280;
    padding: 6px 12px;
    border-bottom: 1px dashed #e5e7eb;
    background: #fafafa;
}
.rw-diff-body {
    padding: 12px;
    font-size: 14px;
    line-height: 1.9;
    color: #374151;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 420px;
    overflow-y: auto;
}
.rw-diff-del {
    color: #c62828;
    background: rgba(198, 40, 40, 0.08);
    text-decoration: line-through;
    border-radius: 2px;
    padding: 0 1px;
}
.rw-diff-ins {
    color: #1b5e20;
    background: rgba(27, 94, 32, 0.08);
    border-radius: 2px;
    padding: 0 1px;
}
.rw-diff-empty { color: #9ca3af; }

/* 暗色模式 */
.dark .rw-diff-panel,
.dark-contrast .rw-diff-panel {
    border-color: #30363d;
    background: #161b22;
}
.dark .rw-diff-head,
.dark-contrast .rw-diff-head {
    border-bottom-color: #30363d;
    background: #1c2129;
}
.dark .rw-diff-title,
.dark-contrast .rw-diff-title { color: #e6edf3; }
.dark .rw-diff-legend,
.dark-contrast .rw-diff-legend { color: #8b949e; }
.dark .rw-diff-col + .rw-diff-col,
.dark-contrast .rw-diff-col + .rw-diff-col { border-left-color: #30363d; }
.dark .rw-diff-coltitle,
.dark-contrast .rw-diff-coltitle {
    color: #8b949e;
    border-bottom-color: #30363d;
    background: #1c2129;
}
.dark .rw-diff-body,
.dark-contrast .rw-diff-body { color: #c9d1d9; }
.dark .rw-diff-del,
.dark-contrast .rw-diff-del {
    color: #ff8a80;
    background: rgba(255, 82, 82, 0.12);
}
.dark .rw-diff-ins,
.dark-contrast .rw-diff-ins {
    color: #89e59a;
    background: rgba(56, 199, 96, 0.12);
}

/* 移动端：对比改单栏 */
@media (max-width: 768px) {
    .rw-diff-cols { grid-template-columns: 1fr; }
    .rw-diff-col + .rw-diff-col { border-left: none; border-top: 1px solid #e5e7eb; }
    .dark .rw-diff-col + .rw-diff-col,
    .dark-contrast .rw-diff-col + .rw-diff-col { border-top-color: #30363d; }
    .rw-diff-body { max-height: 300px; }
}

/* 主窗口内联对比视图 */
.rw-diff-view {
    display: none;
    width: 100%;
    height: 360px;
    padding: 12px 14px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text, #1a1a1a);
    background: var(--control-bg, #f7f9fb);
    border: 1px solid var(--primary-border, #e4e4e4);
    border-radius: 8px;
    box-sizing: border-box;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-y: auto;
}
.rw-diff-view .rw-diff-del {
    color: #c62828;
    background: rgba(198, 40, 40, 0.08);
    text-decoration: line-through;
    border-radius: 2px;
    padding: 0 1px;
}
.rw-diff-view .rw-diff-ins {
    color: #1b5e20;
    background: rgba(27, 94, 32, 0.08);
    border-radius: 2px;
    padding: 0 1px;
}
.rw-diff-empty { color: #9ca3af; }

/* 暗色模式 */
.dark .rw-diff-view,
.dark-contrast .rw-diff-view {
    background: #232c38;
    color: #e3e9f0;
    border-color: var(--border-color, #404040);
}
.dark .rw-diff-view .rw-diff-del,
.dark-contrast .rw-diff-view .rw-diff-del {
    color: #ff8a80;
    background: rgba(255, 82, 82, 0.12);
}
.dark .rw-diff-view .rw-diff-ins,
.dark-contrast .rw-diff-view .rw-diff-ins {
    color: #89e59a;
    background: rgba(56, 199, 96, 0.12);
}

@media (max-width: 767.98px) {
    .rw-diff-view {
        height: 240px;
    }
}
/* 结果栏头部：标题 + 复制/下载 */
.rw-output-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.rw-output-head .rw-label {
    margin-bottom: 0;
}
.rw-output-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.rw-output-actions .rw-btn {
    padding: 6px 12px;
    font-size: 13px;
}