/**
 * 飞矿会展门户 - 基础样式（2026-08-28 UI 改版）
 * 风格：明亮简洁展会门户（参考 expoci），品牌金点缀
 *   - 白底/浅灰分区、深灰正文、金色品牌强调
 *   - 系统无衬线字体，卡片化 + 轻阴影
 * 类名与旧版完全兼容，meeting/ 下所有公开页面共用。
 */

/* ===== 基础变量 ===== */
:root {
	--c-ink: #1f2329;
	--c-ink-soft: #3a4149;
	--c-gold: #c9a961;
	--c-gold-deep: #a67c2e;
	--c-gold-bg: #fbf6ea;
	--c-paper: #f5f6f8;
	--c-paper-soft: #f7f8fa;
	--c-border: #e8eaee;
	--c-text: #2b2f36;
	--c-text-soft: #5b6470;
	--c-text-mute: #9aa1ab;
	--serif: var(--sans);
	--sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
	--maxw: 1200px;
	--shadow-sm: 0 1px 3px rgba(31, 35, 41, .06);
	--shadow-md: 0 6px 18px rgba(31, 35, 41, .09);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
	font-family: var(--sans);
	color: var(--c-text);
	background: var(--c-paper);
	line-height: 1.6;
	font-size: 14px;
}

a { color: var(--c-ink-soft); text-decoration: none; transition: color .15s; }
a:hover { color: var(--c-gold-deep); }

img { max-width: 100%; display: block; }

/* ===== 顶部导航（白底吸顶） ===== */
.meet-header {
	background: #fff;
	border-bottom: 1px solid var(--c-border);
	position: sticky;
	top: 0;
	z-index: 50;
	box-shadow: var(--shadow-sm);
}
.meet-header-inner {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 0 24px;
	height: 60px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
}
.meet-logo {
	font-size: 21px;
	font-weight: 800;
	color: var(--c-ink);
	letter-spacing: .5px;
	white-space: nowrap;
}
.meet-logo .gold { color: var(--c-gold-deep); }
.meet-nav { display: flex; gap: 6px; flex: 1; justify-content: center; }
.meet-nav a {
	color: var(--c-text-soft);
	font-size: 14px;
	padding: 19px 14px;
	position: relative;
	white-space: nowrap;
}
.meet-nav a:hover { color: var(--c-gold-deep); }
.meet-nav a.on, .meet-nav a.active {
	color: var(--c-gold-deep);
	font-weight: 600;
}
.meet-nav a.on::after, .meet-nav a.active::after {
	content: "";
	position: absolute;
	left: 14px;
	right: 14px;
	bottom: 0;
	height: 3px;
	border-radius: 3px 3px 0 0;
	background: var(--c-gold);
}

/* ===== 容器 ===== */
.meet-wrap {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 8px 24px 40px;
}

/* ===== 首页营销文案 ===== */
.meet-hero {
	background: linear-gradient(160deg, #ffffff 0%, var(--c-gold-bg) 100%);
	color: var(--c-text);
	padding: 44px 32px 40px;
	text-align: center;
	border-bottom: 1px solid var(--c-border);
}
.meet-hero h1 {
	font-size: 32px;
	font-weight: 800;
	margin-bottom: 12px;
	letter-spacing: 1px;
	color: var(--c-ink);
}
.meet-hero h1 .gold { color: var(--c-gold-deep); }
.meet-hero .sub {
	font-size: 15px;
	color: var(--c-text-soft);
	max-width: 720px;
	margin: 0 auto 16px;
	line-height: 1.8;
}
.meet-hero .pitch {
	display: inline-block;
	padding: 8px 22px;
	border: 1px solid var(--c-gold);
	color: var(--c-gold-deep);
	font-size: 14px;
	letter-spacing: 1px;
	border-radius: 999px;
	background: #fff;
}

/* ===== 区块标题 ===== */
.meet-section { margin: 30px 0; }
.meet-section-head {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	margin-bottom: 16px;
}
.meet-section-head h2 {
	font-size: 21px;
	color: var(--c-ink);
	font-weight: 700;
	padding-left: 12px;
	border-left: 4px solid var(--c-gold);
	line-height: 1.25;
}
.meet-section-head .more { font-size: 13px; color: var(--c-text-mute); }

/* ===== 会议卡片（列表） ===== */
.meet-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
	gap: 18px;
}
.meet-card {
	background: #fff;
	border: 1px solid var(--c-border);
	border-radius: 10px;
	overflow: hidden;
	transition: box-shadow .2s, transform .2s, border-color .2s;
	display: flex;
	flex-direction: column;
}
.meet-card:hover {
	box-shadow: var(--shadow-md);
	transform: translateY(-3px);
	border-color: transparent;
}
.meet-card-banner {
	aspect-ratio: 16 / 9;
	background: var(--c-paper-soft);
	overflow: hidden;
	position: relative;
}
.meet-card-banner img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform .3s;
}
.meet-card:hover .meet-card-banner img { transform: scale(1.04); }
.meet-card-banner .status-tag {
	position: absolute;
	top: 10px;
	left: 10px;
	padding: 3px 12px;
	font-size: 12px;
	border-radius: 999px;
	background: rgba(31, 35, 41, .6);
	color: #fff;
	backdrop-filter: blur(2px);
}
.meet-card-banner .status-tag.live { background: linear-gradient(135deg, #d4b168, #a67c2e); }
.meet-card-banner .status-tag.ended { background: rgba(31, 35, 41, .6); }
.meet-card-banner .status-tag.upcoming { background: #3b6ea5; }
.meet-card-body { padding: 14px 16px 16px; flex: 1; display: flex; flex-direction: column; }
.meet-card-title {
	font-size: 16px;
	font-weight: 700;
	color: var(--c-ink);
	margin-bottom: 6px;
	line-height: 1.45;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.meet-card-sub {
	font-size: 13px;
	color: var(--c-text-soft);
	margin-bottom: 10px;
}
.meet-card-meta {
	font-size: 12px;
	color: var(--c-text-mute);
	line-height: 1.7;
	margin-top: auto;
}
.meet-card-meta .row { display: flex; gap: 6px; }
.meet-card-meta .lbl { color: var(--c-text-mute); min-width: 50px; }
.meet-card-meta .val { color: var(--c-text-soft); }

/* ===== 沉浸式详情页布局 ===== */
.show-immersive { background: var(--c-paper); }
.show-banner {
	width: 100%;
	min-height: 360px;
	max-height: 460px;
	background: var(--c-ink);
	position: relative;
	overflow: hidden;
}
.show-banner img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: .9;
}
.show-banner-overlay {
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(20,22,26,.25) 0%, rgba(20,22,26,.86) 100%);
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	padding: 36px 32px;
	color: #fff;
}
.show-banner-overlay .label {
	display: inline-block;
	align-self: flex-start;
	padding: 3px 12px;
	background: linear-gradient(135deg, #d4b168, #a67c2e);
	color: #fff;
	font-size: 12px;
	font-weight: 600;
	margin-bottom: 12px;
	border-radius: 999px;
}
.show-banner-overlay h1 {
	font-size: 32px;
	font-weight: 800;
	margin-bottom: 8px;
	line-height: 1.3;
}
.show-banner-overlay .sub {
	font-size: 15px;
	color: rgba(255,255,255,.88);
	margin-bottom: 12px;
}
.show-banner-overlay .meta {
	display: flex;
	gap: 24px;
	flex-wrap: wrap;
	font-size: 13px;
	color: rgba(255,255,255,.75);
}
.show-banner-overlay .meta b { color: #fff; font-weight: 500; margin-right: 4px; }

.show-wrap {
	max-width: var(--maxw);
	margin: 0 auto;
	padding: 28px 24px;
}
.show-section { margin: 32px 0; }
.show-section-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 16px;
}
.show-section-head h2 {
	font-size: 20px;
	color: var(--c-ink);
	font-weight: 700;
	padding-left: 12px;
	border-left: 4px solid var(--c-gold);
}

/* ===== 展商网格（密集云展馆） ===== */
.exh-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
	gap: 14px;
}
.exh-card {
	background: #fff;
	border: 1px solid var(--c-border);
	border-radius: 10px;
	padding: 14px;
	transition: box-shadow .15s, transform .15s;
	display: flex;
	flex-direction: column;
	gap: 8px;
}
.exh-card:hover {
	box-shadow: var(--shadow-md);
	transform: translateY(-2px);
}
.exh-card.vip {
	border: 1.5px solid var(--c-gold);
	box-shadow: 0 2px 10px rgba(201,169,97,.18);
	background: linear-gradient(180deg, #fffdf6 0%, #fff 100%);
}
.exh-card .exh-logo {
	width: 100%;
	aspect-ratio: 4 / 3;
	background: var(--c-paper-soft);
	border-radius: 8px;
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
}
.exh-card .exh-logo img { width: 100%; height: 100%; object-fit: cover; }
.exh-card .exh-logo .placeholder {
	color: var(--c-text-mute);
	font-size: 24px;
	font-weight: 700;
}
.exh-card .exh-name {
	font-size: 15px;
	font-weight: 700;
	color: var(--c-ink);
	line-height: 1.4;
}
.exh-card .exh-booth {
	font-size: 12px;
	color: var(--c-text-mute);
}
.exh-card .exh-booth .vip-tag {
	display: inline-block;
	padding: 1px 8px;
	background: linear-gradient(135deg, #d4b168, #a67c2e);
	color: #fff;
	font-size: 11px;
	font-weight: 600;
	border-radius: 999px;
	margin-left: 6px;
}
.exh-card .exh-enter {
	margin-top: 6px;
	font-size: 12px;
	color: var(--c-gold-deep);
	text-align: right;
}

/* ===== 动态流 ===== */
.dyn-list {
	display: flex;
	flex-direction: column;
	gap: 10px;
	max-height: 480px;
	overflow-y: auto;
	padding-right: 4px;
}
.dyn-item {
	background: #fff;
	border: 1px solid var(--c-border);
	border-radius: 10px;
	padding: 12px 14px;
}
.dyn-item .dyn-head {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 6px;
	font-size: 12px;
}
.dyn-item .dyn-author { color: var(--c-ink); font-weight: 600; }
.dyn-item .dyn-meta { color: var(--c-text-mute); }
.dyn-item .dyn-content {
	font-size: 13px;
	color: var(--c-text);
	line-height: 1.7;
}
.dyn-item .dyn-images {
	display: flex;
	gap: 6px;
	margin-top: 8px;
	flex-wrap: wrap;
}
.dyn-item .dyn-images img {
	width: 80px;
	height: 80px;
	object-fit: cover;
	border-radius: 6px;
}

/* ===== 往届会议 ===== */
.prev-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 16px;
}
.prev-card {
	background: #fff;
	border: 1px solid var(--c-border);
	border-radius: 10px;
	padding: 14px 16px;
	display: flex;
	gap: 12px;
	align-items: center;
	transition: box-shadow .15s;
}
.prev-card:hover { box-shadow: var(--shadow-md); }
.prev-card .prev-year {
	font-size: 22px;
	color: var(--c-gold-deep);
	font-weight: 800;
	min-width: 56px;
}
.prev-card .prev-info { flex: 1; min-width: 0; }
.prev-card .prev-title {
	font-size: 14px;
	color: var(--c-ink);
	font-weight: 600;
	margin-bottom: 3px;
}
.prev-card .prev-meta { font-size: 12px; color: var(--c-text-mute); }

/* ===== 企业云展馆桥接页 ===== */
.bridge-wrap {
	max-width: 640px;
	margin: 80px auto;
	padding: 40px 32px;
	background: #fff;
	border: 1px solid var(--c-border);
	border-radius: 12px;
	text-align: center;
	box-shadow: var(--shadow-sm);
}
.bridge-wrap h1 {
	font-size: 22px;
	color: var(--c-ink);
	margin-bottom: 8px;
}
.bridge-wrap .sub { font-size: 13px; color: var(--c-text-soft); margin-bottom: 22px; }
.bridge-wrap .btn {
	display: inline-block;
	padding: 10px 26px;
	background: linear-gradient(135deg, #d4b168, #b8862e);
	color: #fff;
	border-radius: 6px;
	font-size: 14px;
}
.bridge-wrap .btn:hover { filter: brightness(1.05); color: #fff; }

/* ===== 空状态 ===== */
.empty-state {
	text-align: center;
	padding: 60px 24px;
	color: var(--c-text-mute);
}
.empty-state .icon {
	font-size: 44px;
	color: #d9dde3;
	margin-bottom: 12px;
	font-weight: 800;
}
.empty-state .text { font-size: 14px; }

/* ===== 页脚 ===== */
.meet-footer {
	background: var(--c-ink);
	color: #9aa1ab;
	text-align: center;
	padding: 20px 24px;
	font-size: 12px;
	margin-top: 48px;
}
.meet-footer .gold { color: var(--c-gold); }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
	.meet-header-inner { flex-wrap: wrap; height: auto; padding: 10px 14px; gap: 6px; }
	.meet-nav { order: 3; flex-basis: 100%; justify-content: flex-start; overflow-x: auto; }
	.meet-nav a { padding: 8px 12px 10px; }
	.meet-nav a.on::after, .meet-nav a.active::after { left: 12px; right: 12px; }
	.meet-wrap, .show-wrap { padding: 16px 14px 28px; }
	.meet-hero { padding: 32px 18px 28px; }
	.meet-hero h1 { font-size: 25px; }
	.meet-grid { grid-template-columns: 1fr; }
	.exh-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
	.show-banner-overlay { padding: 24px 16px; }
	.show-banner-overlay h1 { font-size: 23px; }
}

/* ===== 线上AI展位媒体区（任务2 TASK-215/216） ===== */
.bmedia { position: relative; aspect-ratio: 16/9; margin-bottom: 10px; border-radius: 8px; overflow: hidden; background: #EEF0F3; }
.bmedia video, .bmedia img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bmedia-empty { display: flex; align-items: center; justify-content: center; }
.bmedia-empty span { font-size: 34px; font-weight: 700; color: rgba(255,255,255,.85); }