/**
 * Cloud Contact Bar - 前端样式
 * 参考腾讯云官网客户联系栏：右侧竖排图标条 + 悬停滑出面板。
 * Version: 1.0.0
 */

/* ===================== 变量与基础 ===================== */
:root {
	--ccb-theme: #006eff;
	--ccb-bg: #ffffff;
	--ccb-text: #1f2329;
	--ccb-text-soft: #646a73;
	--ccb-border: #e5e6eb;
	--ccb-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
	--ccb-radius: 8px;
	--ccb-bar-w: 56px;
	--ccb-panel-gap: 12px;
	--ccb-z: 9999;
	--ccb-anim: 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.ccb-bar *,
.ccb-overlay *,
.ccb-modal *,
.ccb-toast * {
	box-sizing: border-box;
}

/* ===================== 悬浮栏容器 ===================== */
.ccb-bar {
	position: fixed;
	z-index: var(--ccb-z);
	width: var(--ccb-bar-w);
	display: flex;
	flex-direction: column;
	gap: 12px;
	padding: 8px 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.ccb-bar.ccb-pos-right { right: 16px; }
.ccb-bar.ccb-pos-left  { left: 16px; }

/* ===================== 单项 / 按钮 ===================== */
.ccb-item {
	position: relative;
}

.ccb-icon-btn {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 3px;
	width: 56px;
	height: 56px;
	padding: 0;
	border: none;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.98);
	color: var(--ccb-text-soft);
	cursor: pointer;
	transition: background var(--ccb-anim), color var(--ccb-anim), box-shadow var(--ccb-anim), transform var(--ccb-anim);
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ccb-icon-btn:hover,
.ccb-item.is-open .ccb-icon-btn {
	background: var(--ccb-theme);
	color: #fff;
	box-shadow: 0 4px 14px color-mix(in srgb, var(--ccb-theme) 45%, transparent);
	transform: translateY(-1px);
}

.ccb-icon svg {
	display: block;
}

.ccb-label {
	font-size: 10px;
	line-height: 1.1;
	text-align: center;
	letter-spacing: 0.3px;
}

/* 返回顶部：默认隐藏，滚动后由 JS 显现 */
.ccb-item.ccb-back_to_top { display: none; }
.ccb-bar.ccb-show-top .ccb-back_to_top { display: block; }

/* ===================== 滑出面板（共用） ===================== */
.ccb-panel {
	position: absolute;
	top: 0;
	z-index: 2;
	min-width: 220px;
	background: var(--ccb-bg);
	color: var(--ccb-text);
	border-radius: var(--ccb-radius);
	box-shadow: var(--ccb-shadow);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--ccb-anim), transform var(--ccb-anim), visibility var(--ccb-anim);
	pointer-events: none;
}

/* 右侧栏 → 面板出现在左；左侧栏 → 面板出现在右 */
.ccb-pos-right .ccb-panel {
	right: calc(100% + var(--ccb-panel-gap));
	transform: translateX(12px);
}
.ccb-pos-left .ccb-panel {
	left: calc(100% + var(--ccb-panel-gap));
	transform: translateX(-12px);
}

.ccb-item:hover .ccb-panel,
.ccb-item.is-open .ccb-panel {
	opacity: 1;
	visibility: visible;
	transform: translateX(0);
	pointer-events: auto;
}

.ccb-panel-inner {
	padding: 14px 16px;
	display: flex;
	flex-direction: column;
	gap: 6px;
}

.ccb-panel-cap,
.ccb-manager-role {
	font-size: 12px;
	color: var(--ccb-text-soft);
}

/* 电话号码 */
.ccb-phone-num {
	font-size: 18px;
	font-weight: 600;
	color: var(--ccb-theme);
	text-decoration: none;
	word-break: break-all;
}
.ccb-phone-num:hover { text-decoration: underline; }
.ccb-phone-tip { font-size: 11px; color: var(--ccb-text-soft); }
.ccb-phone-empty { font-size: 12px; color: var(--ccb-text-soft); }

/* 客户经理头像 */
.ccb-manager-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.ccb-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.ccb-manager-name { font-size: 14px; font-weight: 600; color: var(--ccb-text); }

/* 微信二维码面板 */
.ccb-panel-wechat { min-width: 160px; text-align: center; }
.ccb-qr { width: 140px; height: 140px; object-fit: contain; border-radius: 6px; align-self: center; }
.ccb-qr-cap { font-size: 12px; color: var(--ccb-text-soft); }
.ccb-qr-zoom {
	margin-top: 4px;
	border: 1px solid var(--ccb-border);
	background: #f7f8fa;
	color: var(--ccb-theme);
	font-size: 12px;
	padding: 4px 10px;
	border-radius: 4px;
	cursor: pointer;
	transition: background var(--ccb-anim);
}
.ccb-qr-zoom:hover { background: var(--ccb-theme); color: #fff; }

/* 小三角箭头 */
.ccb-panel::after {
	content: "";
	position: absolute;
	top: 24px;
	width: 0; height: 0;
	border-top: 6px solid transparent;
	border-bottom: 6px solid transparent;
}
.ccb-pos-right .ccb-panel::after {
	right: -6px;
	border-left: 6px solid var(--ccb-bg);
}
.ccb-pos-left .ccb-panel::after {
	left: -6px;
	border-right: 6px solid var(--ccb-bg);
}

/* ===================== 遮罩 / 弹层 ===================== */
.ccb-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.45);
	z-index: calc(var(--ccb-z) + 10);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--ccb-anim), visibility var(--ccb-anim);
}
.ccb-overlay.is-visible { opacity: 1; visibility: visible; }

/* 占位提示 toast */
.ccb-toast {
	position: fixed;
	left: 50%;
	top: 32px;
	transform: translate(-50%, -12px);
	z-index: calc(var(--ccb-z) + 20);
	background: rgba(20, 23, 28, 0.92);
	color: #fff;
	padding: 12px 18px;
	border-radius: 8px;
	font-size: 13px;
	display: flex;
	align-items: center;
	gap: 12px;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--ccb-anim), transform var(--ccb-anim), visibility var(--ccb-anim);
	max-width: 90vw;
}
.ccb-toast.is-visible {
	opacity: 1;
	visibility: visible;
	transform: translate(-50%, 0);
}
.ccb-toast-close {
	background: transparent;
	border: none;
	color: #fff;
	cursor: pointer;
	display: flex;
	padding: 0;
	opacity: 0.7;
}
.ccb-toast-close:hover { opacity: 1; }

/* 微信大图弹层 */
.ccb-modal {
	position: fixed;
	inset: 0;
	z-index: calc(var(--ccb-z) + 15);
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--ccb-anim), visibility var(--ccb-anim);
	cursor: zoom-out; /* 暗示点击空白处可关闭 */
}
.ccb-modal.is-visible { opacity: 1; visibility: visible; }
.ccb-modal-box {
	position: relative;
	background: #fff;
	padding: 28px 32px 24px;
	border-radius: 12px;
	max-width: 90vw;
	text-align: center;
	box-shadow: 0 16px 48px rgba(0,0,0,0.3);
	transform: scale(0.92);
	transition: transform var(--ccb-anim);
	cursor: default; /* 内容区恢复正常指针 */
}
.ccb-modal.is-visible .ccb-modal-box { transform: scale(1); }
.ccb-modal-title { margin: 0 0 16px; font-size: 16px; color: var(--ccb-text); }
.ccb-modal-body img { max-width: 280px; width: 80vw; height: auto; border-radius: 8px; }
.ccb-modal-close {
	position: absolute;
	bottom: -28px;
	left: 0;
	right: 0;
	background: none;
	border: none;
	color: #fff;
	cursor: pointer;
	padding: 4px;
	font-size: 13px;
	letter-spacing: 2px;
	display: block;
	width: 100%;
}
.ccb-modal-close:hover { color: rgba(255,255,255,0.7); }

/* ===================== 移动端适配 ===================== */
@media (max-width: 768px) {
	.ccb-bar { right: 12px; }
	.ccb-bar.ccb-pos-left { left: 12px; }
	.ccb-icon-btn { width: 48px; height: 48px; }
	.ccb-label { font-size: 9px; }
	/* hover 面板在触屏改为点击展开（JS 切换 is-open），三角/位置保留 */
	.ccb-panel { min-width: 180px; }
	.ccb-panel-wechat { min-width: 150px; }
	.ccb-qr { width: 120px; height: 120px; }
	.ccb-modal-body img { max-width: 220px; }
}

/* ===================== 无障碍：尊重减少动画偏好 ===================== */
@media (prefers-reduced-motion: reduce) {
	.ccb-panel,
	.ccb-overlay,
	.ccb-toast,
	.ccb-modal,
	.ccb-modal-box,
	.ccb-icon-btn {
		transition: none !important;
	}
}

/* 键盘聚焦可见 */
.ccb-icon-btn:focus-visible,
.ccb-qr-zoom:focus-visible,
.ccb-modal-close:focus-visible,
.ccb-toast-close:focus-visible {
	outline: 2px solid var(--ccb-theme);
	outline-offset: 2px;
}

/* 隐藏屏幕阅读器外的元素（不可见但占位提示仍可读） */
.ccb-sr-only {
	position: absolute !important;
	width: 1px; height: 1px;
	padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0,0,0,0);
	white-space: nowrap; border: 0;
}