:root {
	--bg: #ffffff;
	--panel: #F3F5F5;
	--text: #1f1f1f;
	--muted: #5a5a5a;
	--line: #E2E6E6;

	--primary: #016364;
	--primary-dark: #0B6F6D;

	--radius: 10px;
	/* 稍微更大器 */
	--shadow: 0 10px 24px rgba(0, 0, 0, .06);
	--max: 860px;
	/* 區塊更寬 */
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: system-ui, -apple-system, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
	background: var(--bg);
	color: var(--text);
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 5%;
}

main {
	width: min(var(--max), 100%);
}

.panel {
	background: var(--panel);
	border: 1px solid var(--line);
	/* border-top: 6px solid var(--primary);*/
	border-radius: var(--radius);
	box-shadow: var(--shadow);
	/*padding: clamp(24px, 3.2vw, 64px);*/
	padding: 64px;
	/* 留白更大器 */
	background-image: url(../images/magamenu_bg.png);
	background-repeat: no-repeat;
	background-size: cover;
	background-position: bottom;
}

.layout {
	display: grid;
	/*grid-template-columns: 1fr 1.3fr;*/
	/*gap: clamp(18px, 2.6vw, 50px);*/
	gap: 50px;
	align-items: center;
}

/* 左欄視覺：更大、更乾淨 */
.visual {
	position: relative;
	min-height: clamp(200px, 22vw, 320px);
	border-right: 6px solid rgba(0, 0, 0, .05);
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	/*backdrop-filter: blur(15px) saturate(150%);
	 box-shadow: 0 1em 2em rgba(171, 176, 180, .55);*/
}

/*.visual::before,
.visual::after {
		content: "";
		position: absolute;
		width: 320px;
		height: 320px;
		border-radius: 999px;
		background: radial-gradient(circle at 30% 30%,
						rgba(15, 143, 141, .18),
						rgba(15, 143, 141, 0) 62%);
		transform: translate(-90px, -70px);
}

.visual::after {
		width: 240px;
		height: 240px;
		background: radial-gradient(circle at 30% 30%,
						rgba(15, 143, 141, .12),
						rgba(15, 143, 141, 0) 65%);
		transform: translate(120px, 90px);
}*/

.num {
	font-size: clamp(72px, 7vw, 120px);
	/* 404 放大 */
	font-weight: 900;
	letter-spacing: 2px;
	line-height: 1;
	color: var(--primary-dark);
	z-index: 1;
}

/* 右欄文字：整體放大、行距更舒適 */
h1 {
	margin: 0 0 10px;
	font-size: clamp(28px, 2.6vw, 40px);
	font-weight: 800;
	letter-spacing: .2px;
}

p {
	margin: 0;
	color: var(--muted);
	line-height: 1.8;
	font-size: clamp(16px, 1.35vw, 20px);
	/*max-width: 44ch;*/
	/* 讓段落更好讀、看起來更大器 */
}

.actions {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 22px;
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	height: 52px;
	/* 按鈕加大 */
	padding: 0 22px;
	border-radius: 8px;
	border: 1px solid transparent;
	text-decoration: none;
	font-weight: 700;
	font-size: clamp(16px, 1.25vw, 18px);
	white-space: nowrap;
}

.btn.primary {
	background: var(--primary);
	color: #fff;
	border-color: var(--primary);
}

.btn.primary:hover {
	background: var(--primary-dark);
	border-color: var(--primary-dark);
}

.btn.secondary {
	background: transparent;
	color: var(--primary-dark);
	border-color: rgba(15, 143, 141, .65);
}

.btn.secondary:hover {
	background: rgba(15, 143, 141, .10);
}

/* 焦點可見（鍵盤） */
.btn:focus {
	outline: 3px solid rgba(15, 143, 141, .45);
	outline-offset: 2px;
}

/* RWD：小螢幕變單欄，按鈕滿版 */
@media (max-width: 860px) {
	.panel {
		padding: 5%;
	}

	.visual {
		border: 0;
		border-bottom: 6px solid rgba(0, 0, 0, .05);
	}

	.layout {
		grid-template-columns: 1fr;
	}

	p {
		max-width: none;
	}
}

@media (max-width: 520px) {
	body {
		padding: 18px;
	}

	.actions {
		flex-direction: column;
	}

	.btn {
		width: 100%;
	}
}