/**
 * 全站通用：页面内筛选框组件
 * 1) 单行筛选输入框 .mdc-filter-input（仅红框内：圆角框+搜索图标+placeholder）
 * 2) 完整筛选卡片 .mdc-filter-box（标题+可选筛选输入+选项列表）
 */

/* ========== 仅筛选输入框（可单独使用） ========== */
.mdc-filter-input {
	display: flex;
	align-items: center;
	width: 100%;
	max-width: 280px;
	height: 32px;
	min-height: 32px;
	box-sizing: border-box;
	background-color: var(--md-sys-color-surface-container-low, #f5f9ff);
	border: 1px solid var(--md-sys-color-outline-variant, #c7d7ea);
	border-radius: var(--md-sys-shape-corner-extra-small, 4px);
	transition: border-color .2s, box-shadow .2s;
}
.mdc-filter-input:hover {
	border-color: var(--md-sys-color-outline, #5c6b7a);
	background-color: var(--md-sys-color-surface-container, #eef4fc);
}
.mdc-filter-input:focus-within {
	border-color: var(--md-sys-color-primary, #1976d2);
	box-shadow: 0 0 0 1px var(--md-sys-color-primary, #1976d2);
}
.mdc-filter-input__icon {
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	margin-left: 8px;
	background-color: var(--md-sys-color-on-surface-variant, #49454f);
	mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
	mask-size: contain;
	mask-position: center;
	mask-repeat: no-repeat;
	-webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
	-webkit-mask-size: contain;
	-webkit-mask-position: center;
	-webkit-mask-repeat: no-repeat;
}
.mdc-filter-input__input {
	flex: 1;
	min-width: 0;
	height: 100%;
	padding: 0 36px 0 4px;
	border: none;
	background: none;
	box-sizing: border-box;
	font-family: inherit;
	font-size: var(--md-sys-typescale-body-medium-size, 14px);
	line-height: 20px;
	color: var(--md-sys-color-on-surface, #1c1b1f);
	outline: none;
}
.mdc-filter-input__input::placeholder {
	color: var(--md-sys-color-on-surface-variant, #49454f);
	opacity: 0.8;
}
/* 隐藏 type="search" 浏览器自带清空按钮，只保留自定义 X */
.mdc-filter-input__input::-webkit-search-cancel-button,
.mdc-filter-input__input::-webkit-search-decoration {
	display: none;
	-webkit-appearance: none;
}
.mdc-filter-input__input[type="search"] {
	-webkit-appearance: none;
	appearance: none;
}
/* 右侧清空按钮 */
.mdc-filter-input__clear {
	flex-shrink: 0;
	width: 28px;
	height: 28px;
	margin: 0 4px 0 0;
	padding: 0;
	border: none;
	border-radius: 50%;
	background: transparent;
	color: var(--md-sys-color-on-surface-variant, #49454f);
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: background .2s, color .2s;
}
.mdc-filter-input__clear:hover {
	background: var(--md-sys-color-surface-container-high, #e9f1fb);
	color: var(--md-sys-color-on-surface, #1c1b1f);
}
.mdc-filter-input__clear:focus-visible {
	outline: 2px solid var(--md-sys-color-primary, #1976d2);
	outline-offset: 2px;
}
.mdc-filter-input__clear::before {
	content: '×';
	font-size: 18px;
	line-height: 1;
	font-weight: 300;
}

/* ========== 完整筛选卡片（标题 + 可选筛选输入 + 选项列表） ========== */
.mdc-filter-box {
	--mdc-filter-box-pad-x: var(--sanxio-block-padding-x, 16px);
	--mdc-filter-box-space-xs: var(--sr-space-xs, 4px);
	--mdc-filter-box-space-sm: var(--sr-space-sm, 8px);
	--mdc-filter-box-space-md: var(--sr-space-md, 12px);

	margin-bottom: var(--mdc-filter-box-space-md);
	padding: 0;
	background-color: var(--md-sys-color-surface-container-lowest, #fff);
	border: 1px solid var(--md-sys-color-outline-variant, #c7d7ea);
	border-radius: var(--md-sys-shape-corner-large, 12px);
	box-shadow: var(--md-sys-elevation-level1, 0 1px 3px 1px rgba(0,0,0,.07));
	overflow: hidden;
}
.mdc-filter-box:last-child {
	margin-bottom: 0;
}

.mdc-filter-box__title {
	font-family: var(--md-sys-typescale-title-small-font, system-ui, sans-serif);
	font-size: var(--md-sys-typescale-title-small-size, 14px);
	font-weight: var(--md-sys-typescale-title-small-weight, 600);
	line-height: 1.3;
	color: var(--md-sys-color-on-surface, #1c1b1f);
	margin: 0;
	padding: var(--mdc-filter-box-space-md) var(--mdc-filter-box-pad-x);
	padding-left: calc(16px + 4px + var(--mdc-filter-box-space-sm));
	letter-spacing: 0.02em;
	display: flex;
	align-items: center;
	min-height: calc(1.3em + var(--mdc-filter-box-space-md) * 2);
	background-color: var(--md-sys-color-surface-container, #eef4fc);
	border-bottom: 1px solid var(--md-sys-color-outline-variant, #c7d7ea);
	position: relative;
}
.mdc-filter-box__title::before {
	content: '';
	position: absolute;
	left: 16px;
	top: 50%;
	transform: translateY(-50%);
	width: 4px;
	height: 20px;
	background-color: var(--md-sys-color-primary, #1976d2);
	border-radius: 2px;
}

.mdc-filter-box__input-wrap {
	display: flex;
	align-items: center;
	margin: var(--mdc-filter-box-space-sm) var(--mdc-filter-box-pad-x);
	height: 32px;
	min-height: 32px;
	box-sizing: border-box;
	background-color: var(--md-sys-color-surface-container-low, #f5f9ff);
	border: 1px solid var(--md-sys-color-outline-variant, #c7d7ea);
	border-radius: var(--md-sys-shape-corner-extra-small, 4px);
	transition: border-color .2s, box-shadow .2s;
}
.mdc-filter-box__input-wrap:hover {
	border-color: var(--md-sys-color-outline, #5c6b7a);
	background-color: var(--md-sys-color-surface-container, #eef4fc);
}
.mdc-filter-box__input-wrap:focus-within {
	border-color: var(--md-sys-color-primary, #1976d2);
	box-shadow: 0 0 0 1px var(--md-sys-color-primary, #1976d2);
}
.mdc-filter-box__input-icon {
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	margin-left: 8px;
	background-color: var(--md-sys-color-on-surface-variant, #49454f);
	mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
	mask-size: contain;
	mask-position: center;
	mask-repeat: no-repeat;
	-webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
	-webkit-mask-size: contain;
	-webkit-mask-position: center;
	-webkit-mask-repeat: no-repeat;
}
.mdc-filter-box__input {
	flex: 1;
	min-width: 0;
	height: 100%;
	padding: 0 10px 0 4px;
	border: none;
	background: none;
	box-sizing: border-box;
	font-family: inherit;
	font-size: var(--md-sys-typescale-body-medium-size, 14px);
	line-height: 20px;
	color: var(--md-sys-color-on-surface, #1c1b1f);
	outline: none;
}
.mdc-filter-box__input::placeholder {
	color: var(--md-sys-color-on-surface-variant, #49454f);
	opacity: 0.8;
}

.mdc-filter-box__options {
	list-style: none;
	margin: 0;
	padding: var(--mdc-filter-box-space-md) var(--mdc-filter-box-pad-x);
}
.mdc-filter-box__options li {
	margin: 0 0 var(--mdc-filter-box-space-xs) 0;
}
.mdc-filter-box__options li:last-child {
	margin-bottom: 0;
}

.mdc-filter-box__option {
	display: block;
	width: 100%;
	box-sizing: border-box;
	text-align: left;
	font-size: var(--md-sys-typescale-label-large-size, 14px);
	color: var(--md-sys-color-on-surface, #1c1b1f);
	text-decoration: none;
	padding: var(--mdc-filter-box-space-sm) var(--mdc-filter-box-pad-x);
	border: none;
	background: transparent;
	border-radius: var(--md-sys-shape-corner-small, 4px);
	cursor: pointer;
	transition: background-color .2s, color .2s;
}
.mdc-filter-box__option:hover {
	background-color: var(--md-sys-color-surface-variant, #eef5ff);
	color: var(--md-sys-color-primary, #1976d2);
}
.mdc-filter-box__option.is-active,
.mdc-filter-box__options li.on > .mdc-filter-box__option {
	background-color: transparent;
	color: var(--md-sys-color-primary, #1976d2);
	font-weight: 500;
	border-left: 4px solid var(--md-sys-color-primary, #1976d2);
	border-radius: 0;
	margin-left: 0;
	padding-left: calc(var(--mdc-filter-box-pad-x) - 4px);
}