@charset "UTF-8";

		/* =========================================
		   共通変数・リセット
		========================================= */
		:root {
			--bg-base: #0a0a0c;
			--bg-glass: rgba(20, 20, 22, 0.4);
			--border-glass: rgba(255, 255, 255, 0.08);
			--text-main: #ffffff;
			--text-muted: #a0a0a0;
			--gold: #c5a059;
			--gold-light: #dfbc77;
			--gold-glow: rgba(197, 160, 89, 0.3);
			--font-sans: 'Noto Sans JP', sans-serif;
			--font-serif: 'Playfair Display', 'Shippori Mincho', serif;
		}

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


		/* =========================================
		   カスタムスクロールバー
		========================================= */
		/* Firefox向けの標準プロパティ */
		html {
			scrollbar-width: thin;
			scrollbar-color: rgba(197, 160, 89, 0.6) var(--bg-base);

			scroll-behavior: smooth; /* スムーススクロールを有効化 */
			scroll-padding-top: 85px; /* 固定ヘッダーの裏に要素が隠れないように、停止位置を下にズラす */
		}

		/* WebKit系（Chrome, Edge, Safari等）向けのプロパティ */
		::-webkit-scrollbar {
			width: 10px;  /* 縦スクロールバーの太さ */
			height: 10px; /* 横スクロールバーの太さ */
		}

		/* スクロールバーの背景（トラック） */
		::-webkit-scrollbar-track {
			background: var(--bg-base);
			border-left: 1px solid var(--border-glass); /* トラックの左側に微かなガラス境界線 */
		}

		/* スクロールバーの動く部分（サム） */
		::-webkit-scrollbar-thumb {
			background: rgba(197, 160, 89, 0.4); /* 普段は少し透けたゴールド */
			border-radius: 10px; /* 丸みを持たせる */
			border: 2px solid var(--bg-base); /* 背景色と同じ太い枠線を付けることで、細く浮いているように見せるテクニック */
			transition: background-color 0.3s;
		}

		/* スクロールバーの動く部分（マウスオーバー時） */
		::-webkit-scrollbar-thumb:hover {
			background: var(--gold-light); /* マウスを乗せると明るいゴールドに発光 */
		}


		body {
			background-color: var(--bg-base);
			color: var(--text-main);
			font-family: var(--font-sans);
			-webkit-font-smoothing: antialiased;
			line-height: 1.6;
			overflow-x: hidden;
		}

		/* =========================================
		   動的な背景エフェクト (オーブ)
		========================================= */
		.bg-dynamic {
			position: fixed;
			top: 0; left: 0; width: 100%; height: 100%;
			z-index: -3;
			background-color: var(--bg-base);
			overflow: hidden;
		}

		/* ドットパターンでITシステム感を少し追加 */
		.bg-dynamic::after {
			content: '';
			position: absolute;
			top: 0; left: 0; width: 100%; height: 100%;
			background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
			background-size: 30px 30px;
			z-index: 1;
		}

		.orb {
			position: absolute;
			border-radius: 50%;
			filter: blur(120px);
			opacity: 0.4;
			animation: floatOrb 20s infinite ease-in-out alternate;
			z-index: 0;
		}
		.orb-1 {
			width: 60vw; height: 60vw;
			background: #c5a059; /* ゴールド */
			top: -10%; left: -10%;
			animation-delay: 0s;
		}
		.orb-2 {
			width: 50vw; height: 50vw;
			background: #2a3a5a; /* 深い青紫系で深みを出す */
			bottom: -10%; right: -10%;
			animation-delay: -5s;
		}
		.orb-3 {
			width: 40vw; height: 40vw;
			background: #5a4b2c; /* ダークゴールド */
			top: 40%; left: 50%;
			transform: translate(-50%, -50%);
			animation-delay: -10s;
			opacity: 0.2;
		}

		@keyframes floatOrb {
			0% { transform: translate(0, 0) scale(1); }
			100% { transform: translate(5%, 5%) scale(1.1); }
		}

		/* すりガラスのベースレイヤー */
		.blur-overlay {
			position: fixed;
			top: 0; left: 0; width: 100%; height: 100%;
			backdrop-filter: blur(30px);
			-webkit-backdrop-filter: blur(30px);
			z-index: -2;
		}

		/* =========================================
		   ヘッダー (グラスモーフィズム)
		========================================= */
		header {
			position: fixed;
			top: 0; left: 0; width: 100%;
			padding: 1.2rem 3rem;
			display: flex;
			justify-content: space-between;
			align-items: center;
			z-index: 100;
			background: rgba(10, 10, 12, 0.6);
			backdrop-filter: blur(20px);
			-webkit-backdrop-filter: blur(20px);
			border-bottom: 1px solid var(--border-glass);
			transition: all 0.3s ease;
		}
		.logo-area {
			text-decoration: none;
			display: flex;
			flex-direction: column;
		}
		.logo-title {
			font-family: var(--font-serif);
			font-size: 1.4rem;
			font-weight: 700;
			color: #fff;
			letter-spacing: 0.15em;
			line-height: 1;
		}
		.logo-sub {
			font-family: var(--font-sans);
			font-size: 0.55rem;
			color: var(--gold);
			letter-spacing: 0.25em;
			margin-top: 0.3rem;
		}
		.header-nav {
			display: flex;
			align-items: center;
			gap: 2.5rem;
		}
		.header-nav a.nav-link {
			color: var(--text-muted);
			text-decoration: none;
			font-size: 0.85rem;
			transition: color 0.3s;
			position: relative;
		}
		.header-nav a.nav-link:hover {
			color: #fff;
		}
		.header-nav a.nav-link::after {
			content: '';
			position: absolute;
			bottom: -5px; left: 0; width: 0; height: 1px;
			background: var(--gold);
			transition: width 0.3s ease;
		}
		.header-nav a.nav-link:hover::after {
			width: 100%;
		}
		.btn-login {
			background: rgba(255,255,255,0.05);
			border: 1px solid var(--border-glass);
			padding: 0.6rem 1.8rem;
			border-radius: 30px;
			color: #fff !important;
			text-decoration: none;
			font-size: 0.85rem;
			transition: all 0.3s ease;
			box-shadow: 0 4px 15px rgba(0,0,0,0.2);
		}
		.btn-login:hover {
			border-color: var(--gold);
			background: rgba(197, 160, 89, 0.15);
			box-shadow: 0 0 20px var(--gold-glow);
		}

		/* =========================================
		   ヒーローセクション
		========================================= */
		.hero {
			min-height: 100vh;
			display: flex;
			align-items: center;
			justify-content: center;
			text-align: center;
			padding: 8rem 2rem 4rem;
			position: relative;

			/* ↓↓ この2行を追加して描画バグを防止 ↓↓ */
			-webkit-backface-visibility: hidden;
			backface-visibility: hidden;
			will-change: transform, backdrop-filter;
		}
		.hero-content {
			max-width: 900px;
			animation: fadeInUp 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
		}
		.hero-badge {
			display: inline-block;
			background: rgba(197, 160, 89, 0.1);
			border: 1px solid rgba(197, 160, 89, 0.3);
			color: var(--gold-light);
			font-size: 0.75rem;
			padding: 0.4rem 1.2rem;
			border-radius: 30px;
			letter-spacing: 0.15em;
			margin-bottom: 2rem;
			box-shadow: 0 0 20px var(--gold-glow);
		}
		.hero h1 {
			font-family: var(--font-serif);
			font-size: 3.8rem;
			line-height: 1.2;
			margin-bottom: 1.5rem;
			font-weight: 500;
			text-shadow: 0 10px 30px rgba(0,0,0,0.8);
		}
		.hero h1 span {
			background: linear-gradient(to right, var(--gold-light), var(--gold));
			-webkit-background-clip: text;
			-webkit-text-fill-color: transparent;
			font-style: italic;
		}
		.hero p {
			font-size: 1.15rem;
			color: #d0d0d0;
			margin-bottom: 3.5rem;
			line-height: 1.9;
			font-weight: 300;
			text-shadow: 0 2px 10px rgba(0,0,0,0.5);
		}

		/* Windows Store ボタン (グラスモーフィズム調) */
		.store-buttons {
			display: flex;
			gap: 1rem;
			justify-content: center;
			align-items: center;
		}
		.btn-store {
			display: flex;
			align-items: center;
			background: rgba(0, 0, 0, 0.4);
			backdrop-filter: blur(10px);
			border: 1px solid var(--border-glass);
			border-radius: 8px;
			padding: 0.8rem 2rem;
			text-decoration: none;
			color: #fff;
			transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
		}
		.btn-store:hover {
			border-color: var(--gold);
			background: rgba(197, 160, 89, 0.1);
			box-shadow: 0 10px 30px var(--gold-glow);
			transform: translateY(-3px);
		}
		.btn-store i {
			font-size: 2rem;
			margin-right: 1.2rem;
			color: #00a4ef; /* Windowsロゴの色を少しアクセントに */
		}
		.btn-store-text {
			display: flex;
			flex-direction: column;
			text-align: left;
		}
		.btn-store-text .small {
			font-size: 0.65rem;
			color: #aaa;
			line-height: 1;
			margin-bottom: 0.3rem;
			letter-spacing: 0.05em;
		}
		.btn-store-text .large {
			font-size: 1.2rem;
			font-weight: 700;
			line-height: 1;
			letter-spacing: 0.02em;
		}

		/* =========================================
		   セクション共通
		========================================= */
		section {
			padding: 7rem 2rem;
			max-width: 1200px;
			margin: 0 auto;
			position: relative;
			z-index: 10;
		}
		.section-title {
			text-align: center;
			margin-bottom: 5rem;
		}
		.section-title h2 {
			font-family: var(--font-serif);
			font-size: 2.5rem;
			color: #fff;
			margin-bottom: 0.5rem;
			font-weight: 500;
		}
		.section-title p {
			color: var(--gold);
			font-size: 0.9rem;
			letter-spacing: 0.15em;
		}

		/* =========================================
		   特徴 (Features) - グラスカード
		========================================= */
		.features-grid {
			display: grid;
			grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
			gap: 2.5rem;
		}
		.feature-card {
			background: var(--bg-glass);
			backdrop-filter: blur(15px);
			-webkit-backdrop-filter: blur(15px);
			border: 1px solid var(--border-glass);
			padding: 3.5rem 2.5rem;
			border-radius: 16px;
			text-align: center;
			transition: all 0.4s ease;
			box-shadow: 0 10px 30px rgba(0,0,0,0.3);
			position: relative;
			overflow: hidden;

			/* ↓↓ この2行を追加して描画バグを防止 ↓↓ */
			-webkit-backface-visibility: hidden;
			backface-visibility: hidden;
			will-change: transform, backdrop-filter;
		}
		/* カード上部のハイライト */
		.feature-card::before {
			content: '';
			position: absolute;
			top: 0; left: 0; width: 100%; height: 1px;
			background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
		}

		.feature-card:hover {
			border-color: rgba(197, 160, 89, 0.4);
			background: rgba(26, 26, 28, 0.6);
			transform: translateY(-8px);
			box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 20px var(--gold-glow);
		}
		.feature-icon {
			font-size: 3rem;
			color: var(--gold-light);
			margin-bottom: 1.8rem;
			display: inline-block;
			filter: drop-shadow(0 0 10px var(--gold-glow));
		}
		.feature-card h3 {
			font-size: 1.25rem;
			margin-bottom: 1.2rem;
			font-weight: 500;
			letter-spacing: 0.05em;
		}
		.feature-card p {
			font-size: 0.95rem;
			color: #b0b0b0;
			line-height: 1.8;
		}

		/* =========================================
		   対応環境 (Compatibility)
		========================================= */
		.compat-container {
			background: linear-gradient(135deg, rgba(30,30,35,0.4) 0%, rgba(10,10,12,0.6) 100%);
			backdrop-filter: blur(20px);
			border: 1px solid var(--border-glass);
			border-radius: 20px;
			padding: 5rem;
			display: flex;
			align-items: center;
			gap: 5rem;
			box-shadow: 0 20px 50px rgba(0,0,0,0.5);
			position: relative;
			overflow: hidden;

			/* ↓↓ この2行を追加して描画バグを防止 ↓↓ */
			-webkit-backface-visibility: hidden;
			backface-visibility: hidden;
			will-change: transform, backdrop-filter;
		}
		/* アクセントの光 */
		.compat-container::after {
			content: '';
			position: absolute;
			top: -50%; right: -20%;
			width: 50%; height: 200%;
			background: radial-gradient(ellipse at center, var(--gold-glow) 0%, transparent 70%);
			transform: rotate(-45deg);
			pointer-events: none;
			z-index: 0;
		}

		.compat-text {
			flex: 1;
			position: relative;
			z-index: 1;
		}
		.compat-text h3 {
			font-family: var(--font-serif);
			font-size: 2rem;
			margin-bottom: 1.5rem;
			line-height: 1.3;
		}
		.compat-text p {
			color: var(--text-muted);
			margin-bottom: 2.5rem;
			font-size: 1rem;
			line-height: 1.8;
		}
		.compat-list {
			list-style: none;
			display: grid;
			grid-template-columns: 1fr 1fr;
			gap: 1.2rem;
		}
		.compat-list li {
			display: flex;
			align-items: center;
			font-size: 0.95rem;
			color: #e0e0e0;
		}
		.compat-list li img {
			color: var(--gold);
			margin-right: 0.8rem;
			font-size: 1.3rem;
			filter: drop-shadow(0 0 5px var(--gold-glow));
		}
		.compat-image {
			flex: 1;
			text-align: center;
			position: relative;
			z-index: 1;
		}
		.compat-image img {
			width:244px; height:244px;
			background: -webkit-linear-gradient(-45deg, var(--gold-light), #444);
			-webkit-background-clip: text;
			-webkit-text-fill-color: transparent;
			opacity: 0.8;
			filter: drop-shadow(0 20px 30px rgba(0,0,0,0.5));
		}

		/* =========================================
		   運用スタイル (Operation)
		========================================= */
		.operation-split {
			display: grid;
			grid-template-columns: 1fr 1fr;
			gap: 2.5rem;
		}
		.op-box {
			background: var(--bg-glass);
			backdrop-filter: blur(10px);
			border: 1px solid var(--border-glass);
			padding: 3.5rem;
			border-radius: 16px;
			position: relative;
			overflow: hidden;
			transition: all 0.3s;

			/* ↓↓ この2行を追加して描画バグを防止 ↓↓ */
			-webkit-backface-visibility: hidden;
			backface-visibility: hidden;
			will-change: transform, backdrop-filter;
		}
		.op-box:hover {
			background: rgba(30, 30, 35, 0.5);
			border-color: rgba(255,255,255,0.15);
		}

		.op-box::before {
			content: '';
			position: absolute;
			top: 0; left: 0; width: 100%; height: 4px;
		}
		.op-box.local::before { background: linear-gradient(90deg, #555, #222); }
		.op-box.cloud::before { background: linear-gradient(90deg, var(--gold-light), var(--gold)); }

		.op-box.cloud {
			box-shadow: 0 10px 30px var(--gold-glow);
		}

		.op-box h3 {
			font-size: 1.4rem;
			margin-bottom: 1.2rem;
			display: flex;
			align-items: center;
			font-weight: 500;
		}
		.op-box h3 img { margin-right: 1rem; width: 1.8rem; height: 1.8rem; }
		.op-box.local h3 { color: #fff; }
		.op-box.cloud h3 { color: var(--gold-light); }

		.op-box p {
			color: #b0b0b0;
			font-size: 0.95rem;
			margin-bottom: 2rem;
			line-height: 1.8;
		}
		.tag-list span {
			display: inline-block;
			background: rgba(255,255,255,0.05);
			border: 1px solid rgba(255,255,255,0.1);
			color: #ccc;
			font-size: 0.8rem;
			padding: 0.3rem 1rem;
			border-radius: 20px;
			margin-right: 0.5rem;
			margin-bottom: 0.5rem;
		}
		.op-box.cloud .tag-list span {
			border-color: rgba(197, 160, 89, 0.3);
			color: var(--gold-light);
		}

		/* =========================================
		   フッター
		========================================= */
		footer {
			border-top: 1px solid var(--border-glass);
			padding: 4rem 2rem;
			text-align: center;
			margin-top: 5rem;
			background: rgba(0,0,0,0.5);
			backdrop-filter: blur(10px);
			position: relative;
			z-index: 10;
		}
		.footer-links {
			margin-bottom: 2rem;
		}
		.footer-links a {
			color: var(--text-muted);
			text-decoration: none;
			font-size: 0.85rem;
			margin: 0 1.2rem;
			transition: color 0.3s;
		}
		.footer-links a:hover {
			color: var(--gold);
		}
		.copyright {
			color: #666;
			font-size: 0.75rem;
			letter-spacing: 0.1em;
		}

		/* アニメーション */
		@keyframes fadeInUp {
			from { opacity: 0; transform: translateY(40px); }
			to { opacity: 1; transform: translateY(0); }
		}

		/* レスポンシブ */
		@media screen and (max-width: 768px) {
			header { padding: 1rem 1.5rem; }
			.header-nav a.hide-sp { display: none; }
			.hero h1 { font-size: 2.5rem; }
			.compat-container { flex-direction: column; padding: 2.5rem; gap: 2rem; }
			.compat-list { grid-template-columns: 1fr; }
			.compat-image i { font-size: 8rem; }
			.operation-split { grid-template-columns: 1fr; }
			.op-box { padding: 2.5rem; }
		}


.win_logo { padding-right:20px; }

		.feature-icon {
			font-size: 3rem;
			color: var(--gold-light);
			margin-bottom: 1.8rem;
			display: inline-block;
			filter: drop-shadow(0 0 10px var(--gold-glow));
		}






/* ----------------------------------
 テスター用
------------------------------------- */
.tester-hero .hero-content {
	max-width: 960px;
}

.hero-note {
	display: inline-block;
	margin-top: 1.4rem;
	padding: 0.7rem 1.2rem;
	border: 1px solid rgba(197, 160, 89, 0.28);
	border-radius: 999px;
	background: rgba(0, 0, 0, 0.24);
	color: #cfc8b9;
	font-size: 0.82rem;
	line-height: 1.7;
}

.logo-title {
	letter-spacing: 0.08em;
}

.logo-sub {
	letter-spacing: 0.18em;
}

.hero-badge {
	font-weight: 500;
}

.btn-store {
	min-width: 250px;
	justify-content: center;
}

.compat-list li {
	min-height: 2rem;
}

.feature-card p,
.compat-text p,
.op-box p {
	font-weight: 400;
}

@media screen and (max-width: 768px) {
	.hero-note {
		border-radius: 14px;
		font-size: 0.78rem;
	}

	.btn-store {
		width: 100%;
		max-width: 320px;
	}
}