/* ==========================================================================
 * Uslik 工具箱页面样式
 * 依赖 base.css 的设计变量；深色模式沿用 html[data-theme="dark"]。
 * ========================================================================== */

/* ---------- 页头 ---------- */

.tools-hero {
	position: relative;
	overflow: hidden;
	margin: 14px 0 20px;
	padding: 56px 24px 40px;
	border: 1px solid var(--border);
	border-radius: var(--radius-xl);
	background:
		radial-gradient(760px 300px at 50% -12%, rgba(var(--brand-rgb), 0.11), transparent 68%),
		linear-gradient(180deg, var(--surface-2), var(--surface) 64%);
	box-shadow: var(--shadow-sm);
	text-align: center;
}

/* 点阵纹理：顶部清晰、向下淡出，避免大块纯色显平 */
.tools-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(var(--brand-rgb), 0.2) 1px, transparent 1.2px);
	background-size: 20px 20px;
	-webkit-mask-image: radial-gradient(130% 78% at 50% 0%, #000 0%, transparent 74%);
	mask-image: radial-gradient(130% 78% at 50% 0%, #000 0%, transparent 74%);
	opacity: 0.5;
	pointer-events: none;
}

/* 顶部渐隐细线，收住页头上边界 */
.tools-hero::after {
	content: "";
	position: absolute;
	top: 0;
	right: 0;
	left: 0;
	height: 2px;
	background: linear-gradient(90deg, transparent, rgba(var(--brand-rgb), 0.5), transparent);
	pointer-events: none;
}

[data-theme="dark"] .tools-hero::before {
	opacity: 0.32;
}

.tools-hero__inner {
	position: relative;
	z-index: 1;
	max-width: 760px;
	margin: 0 auto;
}

/* 角标：定位在卡片右上角，不再参与居中堆叠 */
.tools-hero__eyebrow {
	position: absolute;
	top: 16px;
	right: 16px;
	z-index: 2;
	display: inline-flex;
	align-items: center;
	gap: 8px;
	height: 30px;
	margin: 0;
	padding: 0 12px;
	border: 1px solid var(--border);
	border-radius: 999px;
	background: var(--surface);
	box-shadow: var(--shadow-xs);
	color: var(--muted);
	font-size: 11.5px;
	font-weight: 700;
	letter-spacing: 0.06em;
	line-height: 1;
	text-transform: uppercase;
	white-space: nowrap;
}

.tools-hero__eyebrow-dot {
	flex: 0 0 6px;
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--brand);
	box-shadow: 0 0 0 3px var(--brand-soft);
}

.tools-hero__count {
	display: inline-flex;
	align-items: center;
	align-self: stretch;
	padding-left: 9px;
	border-left: 1px solid var(--border);
	color: var(--brand-ink);
	font-variant-numeric: tabular-nums;
	font-weight: 600;
	letter-spacing: 0;
	text-transform: none;
}

.tools-hero h1 {
	margin: 0;
	font-size: clamp(26px, 4.4vw, 40px);
	font-weight: 700;
	letter-spacing: -0.035em;
	line-height: 1.16;
}

.tools-hero__desc {
	max-width: 620px;
	margin: 10px auto 0;
	color: var(--muted);
	font-size: 14.5px;
	line-height: 1.75;
}

/* ---------- 搜索 ---------- */

.tools-search {
	max-width: 620px;
	margin: 26px auto 0;
	padding: 7px 8px 7px 20px;
	border-color: var(--border-strong);
	background: var(--surface);
	box-shadow: 0 14px 34px -24px rgba(15, 23, 42, 0.4), var(--shadow-xs);
	transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease), transform 0.18s var(--ease);
}

/* 聚焦时上浮一点 + 品牌光晕，作为整页的主操作 */
.tools-search:focus-within {
	border-color: rgba(var(--brand-rgb), 0.45);
	box-shadow: 0 0 0 4px var(--brand-soft), 0 18px 38px -24px var(--brand-shadow);
	transform: translateY(-1px);
}

.tools-search .search-form__icon {
	transition: color 0.18s var(--ease);
}

.tools-search:focus-within .search-form__icon {
	color: var(--brand);
}

.tools-search .search-form__input {
	height: 44px;
	font-size: 15px;
	/* 页头整体居中，输入内容仍需从行首开始 */
	text-align: start;
}

/* 「/」快捷键键帽：有输入内容后让位给清空按钮 */
.tools-search__kbd {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 auto;
	min-width: 24px;
	height: 24px;
	padding: 0 6px;
	border: 1px solid var(--border-strong);
	border-bottom-width: 2px;
	border-radius: 7px;
	background: var(--surface-2);
	color: var(--muted-2);
	font-family: var(--font-mono);
	font-size: 12px;
	font-weight: 600;
	line-height: 1;
}

.tools-search .search-form__input:not(:placeholder-shown) ~ .tools-search__kbd {
	display: none;
}

.tools-search__clear {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 32px;
	width: 32px;
	height: 32px;
	padding: 0;
	border: 0;
	border-radius: 50%;
	background: var(--surface-3);
	color: var(--muted);
	cursor: pointer;
	transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.tools-search__clear:hover,
.tools-search__clear:focus-visible {
	background: var(--brand-soft);
	color: var(--brand-ink);
}

/* 作者样式会覆盖 [hidden] 的浏览器默认 display:none，这里显式补回 */
.tools-search__clear[hidden] {
	display: none;
}

/* ---------- 分类筛选 ---------- */

.tools-filters {
	display: flex;
	align-items: center;
	gap: 12px;
	margin: 0 0 18px;
}

/* 固定单行：分类多时横向滑动，不再换行把筛选区撑成两行。
   同 .sort-tabs 一致隐藏滚动条，靠触摸手势、触控板或右侧箭头滚动。 */
.tools-filters .chip-row {
	flex: 1 1 auto;
	min-width: 0;
	flex-wrap: nowrap;
	overflow-x: auto;
	overflow-y: hidden;
	-webkit-overflow-scrolling: touch;
	overscroll-behavior-x: contain;
	scrollbar-width: none;
	/* 预留 4px：聚焦描边（2px + offset 2px）与选中边框不被滚动容器裁切 */
	padding: 4px;
	margin: -4px;
	scroll-padding-inline: 4px;
}

.tools-filters .chip-row::-webkit-scrollbar {
	display: none;
}

.tools-filters .chip {
	flex: 0 0 auto;
	cursor: pointer;
	font-family: inherit;
}

.tools-filters .chip:focus-visible {
	outline: 2px solid var(--brand);
	outline-offset: 2px;
}

/* 溢出时出现在筛选栏最右侧；到末尾后箭头翻转，再点一次回到开头。 */
.tools-filters__more {
	flex: 0 0 auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	padding: 0;
	border: 1px solid var(--border);
	border-radius: 999px;
	background: var(--surface);
	color: var(--muted);
	box-shadow: var(--shadow-xs);
	cursor: pointer;
	transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

/* 作者样式会覆盖 [hidden] 的浏览器默认 display:none，这里显式补回 */
.tools-filters__more[hidden] {
	display: none;
}

.tools-filters__more:hover,
.tools-filters__more:focus-visible {
	border-color: transparent;
	background: var(--brand-soft);
	color: var(--brand-ink);
}

.tools-filters__more:focus-visible {
	outline: 2px solid var(--brand);
	outline-offset: 2px;
}

.tools-filters__more svg {
	transition: transform 0.18s var(--ease);
}

.tools-filters__more.is-flipped svg {
	transform: rotate(180deg);
}

/* ---------- 列表 ---------- */

.tools-section {
	min-height: 120px;
}

.tool-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
	gap: 14px;
}

.tool-card {
	position: relative;
	display: flex;
	flex-direction: column;
	gap: 12px;
	min-width: 0;
	padding: 16px;
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	background: var(--surface);
	box-shadow: var(--shadow-xs);
	color: inherit;
	text-decoration: none;
	transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.tool-card:hover {
	border-color: rgba(var(--brand-rgb), 0.32);
	box-shadow: var(--shadow-md);
	transform: translateY(-2px);
}

.tool-card:focus-visible {
	outline: 2px solid var(--brand);
	outline-offset: 2px;
}

/* 同上：筛选时用 hidden 属性隐藏卡片 */
.tool-card[hidden] {
	display: none;
}

.tool-card__top {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 10px;
}

.tool-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	flex: 0 0 46px;
	width: 46px;
	height: 46px;
	border-radius: 14px;
	background: var(--brand-soft);
	color: var(--brand-ink);
	overflow: hidden;
	transition: transform 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.tool-card__icon img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

/* 有强调色时用柔和色底；不支持 color-mix 的浏览器保留品牌色底 */
@supports (background: color-mix(in srgb, red 10%, transparent)) {
	.tool-card__icon {
		background: color-mix(in srgb, var(--tool-color, var(--brand)) 13%, transparent);
		color: var(--tool-color, var(--brand-ink));
	}

	html[data-theme="dark"] .tool-card__icon {
		background: color-mix(in srgb, var(--tool-color, var(--brand)) 22%, transparent);
		color: color-mix(in srgb, var(--tool-color, var(--brand-ink)) 55%, #ffffff);
	}
}

/* 悬停时用彩色描边提亮；不支持 color-mix 的浏览器仅保留缩放 */
.tool-card:hover .tool-card__icon {
	transform: scale(1.04);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--tool-color, var(--brand)) 18%, transparent);
}

.tool-card__badge {
	flex: 0 0 auto;
	padding: 2px 8px;
	border-radius: 999px;
	background: var(--brand-soft);
	color: var(--brand-ink);
	font-size: 11px;
	font-weight: 600;
	line-height: 18px;
	white-space: nowrap;
}

.tool-card__body {
	display: flex;
	flex-direction: column;
	gap: 4px;
	min-width: 0;
}

.tool-card__name {
	overflow: hidden;
	font-size: 15px;
	font-weight: 650;
	line-height: 1.4;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.tool-card__desc {
	display: -webkit-box;
	overflow: hidden;
	color: var(--muted);
	font-size: 12.5px;
	line-height: 1.6;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 2;
}

.tool-card__foot {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 10px;
	margin-top: auto;
	padding-top: 12px;
	border-top: 1px dashed var(--border);
}

.tool-card__cat {
	min-width: 0;
	overflow: hidden;
	color: var(--muted);
	font-size: 11.5px;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.tool-card__go {
	display: inline-flex;
	align-items: center;
	flex: 0 0 auto;
	gap: 4px;
	color: var(--brand-ink);
	font-size: 12px;
	font-weight: 600;
}

.tool-card__go svg {
	transition: transform 0.18s var(--ease);
}

.tool-card:hover .tool-card__go svg {
	transform: translateX(2px);
}

/* ---------- 分页 ---------- */

/* 按钮视觉沿用站点统一 .pagination，这里只补按钮态与列表间距 */
.tools-pager {
	margin-top: 28px;
}

.tools-pager .page-numbers {
	cursor: pointer;
}

.tools-pager .page-numbers[aria-current="page"] {
	cursor: default;
}

.tools-pager .page-numbers[disabled] {
	opacity: 0.42;
	cursor: default;
}

.tools-pager .page-numbers[disabled]:hover {
	border-color: var(--border);
	background: var(--surface);
	color: var(--text-2);
}

/* ---------- 空状态 ---------- */

.tools-empty {
	margin-top: 4px;
}

.tools-empty[hidden] {
	display: none;
}

/* ---------- 介绍与 FAQ ---------- */

/* 卡片列表之外的纯文本块：给聚合页提供可被索引的正文。 */
.tools-seo {
	margin-top: 26px;
	padding: 26px 24px;
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	background: var(--surface);
	box-shadow: var(--shadow-xs);
}

.tools-seo h2 {
	margin: 0 0 12px;
	font-size: clamp(18px, 2.4vw, 22px);
	letter-spacing: -0.02em;
}

.tools-seo p {
	max-width: 880px;
	margin: 0 0 12px;
	color: var(--text-2);
	font-size: 13.5px;
	line-height: 1.85;
}

.tools-seo p:last-child {
	margin-bottom: 0;
}

.tools-faq {
	display: grid;
	gap: 14px;
	margin-top: 20px;
	padding-top: 18px;
	border-top: 1px solid var(--border);
}

.tools-faq__item h3 {
	margin: 0 0 4px;
	font-size: 14px;
	font-weight: 600;
	letter-spacing: -0.01em;
}

.tools-faq__item p {
	margin: 0;
	color: var(--muted);
	font-size: 13px;
	line-height: 1.75;
}

/* ---------- 响应式 ---------- */

@media (max-width: 782px) {
	.tools-hero {
		margin-top: 10px;
		padding: 54px 18px 26px;
		border-radius: var(--radius-lg);
	}

	.tools-hero__eyebrow {
		top: 12px;
		right: 12px;
		height: 26px;
		font-size: 11px;
	}

	.tools-hero__desc {
		font-size: 13.5px;
	}

	.tools-search {
		margin-top: 20px;
		padding-left: 16px;
	}

	.tools-seo {
		margin-top: 18px;
		padding: 20px 18px;
	}

	.tool-grid {
		grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
		gap: 12px;
	}

	.tool-card {
		gap: 10px;
		padding: 14px;
	}
}

@media (max-width: 480px) {
	/* 窄屏放不下键帽，靠 placeholder 提示即可 */
	.tools-search__kbd {
		display: none;
	}

	/* 窄屏只留上一页/下一页与当前页，避免页码换行 */
	.tools-pager .page-numbers:not(.current):not(.tools-pager__step) {
		display: none;
	}

	.tool-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 10px;
	}

	.tool-card__icon {
		flex-basis: 40px;
		width: 40px;
		height: 40px;
		border-radius: 12px;
	}

	.tool-card__name {
		font-size: 14px;
	}

	.tool-card__desc {
		font-size: 12px;
	}

	/* 窄屏只保留「访问/打开」，分类文字让位给名称 */
	.tool-card__cat {
		display: none;
	}

	.tool-card__foot {
		justify-content: flex-end;
	}
}