/* ============================================================
   案例展示 · 高端样式（覆盖 style.css / less.css 中的旧样式）
   作用于：case.html 的 .ul-case、index.html 的 .ul-case-i
   ============================================================ */

:root{
	--cp-gold: #dab880;
	--cp-ink: #0c0e1a;
	--cp-radius: 12px;
	--cp-ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- 分类筛选 ---------- */
.case-filter{
	text-align: center;
	margin: -10px 0 40px;
	font-size: 0;
}
.case-filter li{
	display: inline-block;
	margin: 0 6px 10px;
}
.case-filter a{
	display: inline-block;
	padding: 0 22px;
	height: 38px;
	line-height: 38px;
	border-radius: 19px;
	border: 1px solid #e3e3e8;
	color: #555;
	font-size: 14px;
	letter-spacing: 1px;
	background: #fff;
	transition: all .3s var(--cp-ease);
	cursor: pointer;
}
.case-filter a sup{
	font-size: 11px;
	color: #aaa;
	margin-left: 4px;
	vertical-align: top;
	transition: color .3s;
}
.case-filter a:hover{
	border-color: var(--cp-gold);
	color: var(--cp-gold);
}
.case-filter a.active{
	background: var(--cp-ink);
	border-color: var(--cp-ink);
	color: #fff;
}
.case-filter a.active sup{ color: var(--cp-gold); }

/* ---------- 案例页卡片 ---------- */
.ul-case li{
	overflow: visible;
	margin-bottom: 36px;
}
.ul-case li.is-hidden{ display: none; }

.ul-case li .block{
	border-radius: var(--cp-radius);
	overflow: hidden;
	background: #f2f2f5;
	box-shadow: 0 6px 18px rgba(12,14,26,.08);
	transform: translateZ(0); /* 修复 Safari 圆角裁切 */
	transition: transform .5s var(--cp-ease), box-shadow .5s var(--cp-ease);
}
.ul-case li .pic{
	overflow: hidden;
}
.ul-case li .pic img{
	width: 100%;
	aspect-ratio: 355 / 268;
	object-fit: cover;
	transition: transform 1.2s var(--cp-ease);
}

/* 遮罩：底部渐变常显，悬停加深 */
.ul-case li .txt{
	opacity: 1;
	text-align: left;
	background: linear-gradient(to top, rgba(12,14,26,.88) 0%, rgba(12,14,26,.35) 42%, rgba(12,14,26,0) 70%);
}
.ul-case li .txt::before{
	content: "";
	position: absolute;
	inset: 0;
	background: rgba(12,14,26,.35);
	opacity: 0;
	transition: opacity .5s var(--cp-ease);
	pointer-events: none;
}
.ul-case li .txt b{ display: none; }
.ul-case li .txt .pad{
	display: block;
	position: absolute;
	left: 26px;
	right: 26px;
	bottom: 24px;
	z-index: 1;
}
.ul-case li .txt h5{
	display: inline-block;
	font-size: 12px;
	letter-spacing: 2px;
	color: var(--cp-gold);
	padding: 2px 10px;
	border: 1px solid rgba(218,184,128,.55);
	border-radius: 3px;
	line-height: 18px;
}
.ul-case li .txt em{
	display: block;
	width: 28px;
	margin: 14px 0 12px;
	border-bottom: 1px solid var(--cp-gold);
	transition: width .5s var(--cp-ease);
}
.ul-case li .txt h3{
	font-size: 20px;
	font-weight: 600;
	letter-spacing: 1px;
	line-height: 1.4;
	margin: 0;
	color: #fff;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

/* “案例详情”与二维码：悬停时展开 */
.ul-case li .txt .more,
.ul-case li .txt .weChatCode{
	display: block;
	max-height: 0;
	opacity: 0;
	overflow: hidden;
	transform: translateY(8px);
	transition: max-height .5s var(--cp-ease), opacity .4s, transform .5s var(--cp-ease), margin .5s var(--cp-ease);
}
.ul-case li .txt .more{
	width: auto;
	height: auto;
	line-height: 20px;
	background: none;
	border-radius: 0;
	text-align: left;
	font-size: 13px;
	letter-spacing: 2px;
	color: rgba(255,255,255,.85);
}
.ul-case li .txt .more::after{
	content: "→";
	display: inline-block;
	margin-left: 8px;
	color: var(--cp-gold);
	transition: transform .3s var(--cp-ease);
}
.ul-case li .txt .weChatCode{
	width: 84px;
	height: auto;
	padding: 0 4px;
	background: #fff;
	border-radius: 6px;
}
.ul-case li .txt .weChatCode img{ display: block; }

/* 悬停 / 移动端点击（li.on 由页面脚本切换） */
.ul-case li:hover .block,
.ul-case li.on .block{
	transform: translateY(-6px);
	box-shadow: 0 22px 44px rgba(12,14,26,.18);
}
.ul-case li:hover .pic img,
.ul-case li.on .pic img{ transform: scale(1.06); }
.ul-case li:hover .txt::before,
.ul-case li.on .txt::before{ opacity: 1; }
.ul-case li:hover .txt em,
.ul-case li.on .txt em{ width: 56px; }
.ul-case li:hover .txt .more,
.ul-case li.on .txt .more{
	max-height: 30px;
	opacity: 1;
	transform: none;
	margin-top: 12px;
}
.ul-case li:hover .txt .weChatCode,
.ul-case li.on .txt .weChatCode{
	max-height: 100px;
	opacity: 1;
	transform: none;
	margin-top: 12px;
	padding: 4px;
}
.ul-case li .txt .more:hover{ opacity: 1; filter: none; }
.ul-case li .txt .more:hover::after{ transform: translateX(4px); }

/* 进场动画（仅在脚本加上 .cp-reveal 后生效，无脚本时正常显示） */
.cp-reveal .ul-case li,
.cp-reveal .ul-case-i li{
	opacity: 0;
	transform: translateY(28px);
	transition: opacity .8s var(--cp-ease), transform .8s var(--cp-ease);
}
.cp-reveal .ul-case li.in,
.cp-reveal .ul-case-i li.in{
	opacity: 1;
	transform: none;
}

/* ---------- 首页案例卡片 ---------- */
.ul-case-i{ overflow: visible; }
.ul-case-i::after{ content: ""; display: block; clear: both; }
.ul-case-i li{ overflow: visible; }
.ul-case-i li a{
	border-radius: var(--cp-radius);
	overflow: hidden;
	box-shadow: 0 6px 18px rgba(12,14,26,.08);
	transform: translateZ(0);
	transition: transform .5s var(--cp-ease), box-shadow .5s var(--cp-ease);
}
.ul-case-i li .pic{ overflow: hidden; }
.ul-case-i li .pic img{
	aspect-ratio: 355 / 268;
	object-fit: cover;
	transition: transform 1.2s var(--cp-ease);
}
.ul-case-i li a .hover{
	top: 0;
	background: linear-gradient(to top, rgba(12,14,26,.85) 0%, rgba(12,14,26,.2) 45%, rgba(12,14,26,0) 70%);
	text-align: left;
}
.ul-case-i li a .hover::before{
	content: "";
	position: absolute;
	inset: 0;
	background: rgba(12,14,26,.3);
	opacity: 0;
	transition: opacity .5s var(--cp-ease);
}
.ul-case-i li .hover b{ display: none; }
.ul-case-i li .hover .txt{
	display: block;
	position: absolute;
	left: 18px;
	right: 18px;
	bottom: 16px;
	z-index: 1;
}
.ul-case-i li .hover .txt h3{
	font-size: 16px;
	font-weight: 600;
	letter-spacing: 1px;
	color: #fff;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.ul-case-i li .hover .txt h3 .cp-tag{
	display: block;
	width: max-content;
	font-size: 11px;
	font-weight: normal;
	letter-spacing: 2px;
	color: var(--cp-gold);
	border: 1px solid rgba(218,184,128,.55);
	border-radius: 3px;
	padding: 0 8px;
	line-height: 18px;
	margin-bottom: 8px;
}
.ul-case-i li .the-code{
	z-index: 2;
	top: 14px;
	right: 14px;
	bottom: auto;
	width: 74px;
	height: auto;
	padding: 4px;
	background: #fff;
	border-radius: 6px;
	opacity: 0;
	transform: translateY(-6px);
	transition: opacity .4s, transform .5s var(--cp-ease);
}
.ul-case-i li .the-code img{ display: block; }

.ul-case-i li a:hover{
	transform: translateY(-6px);
	box-shadow: 0 22px 44px rgba(12,14,26,.18);
}
.ul-case-i li a:hover .pic img{ transform: scale(1.06); }
.ul-case-i li a:hover .hover::before{ opacity: 1; }
.ul-case-i li a:hover .the-code{ opacity: 1; transform: none; }

/* ---------- 移动端 ---------- */
@media screen and (max-width: 768px){
	.case-filter{ margin: 16px -10px 20px; }
	.case-filter li{ margin: 0 3px 8px; }
	.case-filter a{ padding: 0 14px; height: 32px; line-height: 32px; font-size: 13px; }
	.ul-case li .txt .pad{ left: 18px; right: 18px; bottom: 16px; }
	.ul-case li .txt h3{ font-size: 18px; }
	/* 手机上无悬停，直接显示“案例详情” */
	.ul-case li .txt .more{ max-height: 30px; opacity: 1; transform: none; margin-top: 10px; }
}

@media (prefers-reduced-motion: reduce){
	.ul-case li *, .ul-case-i li *, .cp-reveal .ul-case li, .cp-reveal .ul-case-i li{
		transition: none !important;
	}
}