/* ====================================
   CSS変数 ・ ベーススタイル
   宗田本店のデザインを踏襲
   ==================================== */
:root {
    --color-bg: #0f0d0a;
    --color-bg-alt: #16140f;
    --color-surface: #1c1a15;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-text: #e8e4dc;
    --color-text-muted: rgba(232, 228, 220, 0.5);
    --color-accent: #c4a35a;
    --color-accent-light: #d4b76a;
    --color-accent-glow: rgba(196, 163, 90, 0.15);

    /* Fonts */
    --font-serif: 'Noto Serif JP', serif;
    --font-sans: 'Zen Kaku Gothic New', sans-serif;

    /* Transitions */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --ease-gentle: cubic-bezier(0.25, 0.1, 0.25, 1);

    /* 和風カットコーナー */
    --cut-sm: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
    --cut-md: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);

    /* Background Texture */
    --bg-texture: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 2;
    letter-spacing: 0.04em;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* 和紙テクスチャ オーバーレイ */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.025;
    background-image: var(--bg-texture);
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* ====================================
   Loading Screen
   ==================================== */
.loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 1.2s var(--ease-out), visibility 1.2s;
}

.loader::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(196, 163, 90, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-inner {
    text-align: center;
    position: relative;
}

.loader-subtitle {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    letter-spacing: 0.35em;
    color: var(--color-text);
    margin-bottom: 0.3rem;
    opacity: 0;
    animation: loader-slide-up 1s 0.3s var(--ease-out) forwards;
}

.loader-logo {
    font-family: var(--font-serif);
    font-size: clamp(3.5rem, 10vw, 5.5rem);
    font-weight: 600;
    letter-spacing: 0.2em;
    margin-bottom: 0.3rem;
    color: var(--color-accent);
    text-shadow: 0 0 60px rgba(196, 163, 90, 0.4), 0 0 120px rgba(196, 163, 90, 0.2);
    opacity: 0;
    animation: loader-logo-reveal 1.2s 0.5s var(--ease-out) forwards;
}

.loader-english {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    letter-spacing: 0.6em;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: loader-slide-up 1s 0.8s var(--ease-out) forwards;
}

/* ローダー「宗田のお弁当」ラベル */
.loader-bento-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    opacity: 0;
    animation: loader-slide-up 1s 1s var(--ease-out) forwards;
}

.loader-bento-text {
    font-family: var(--font-serif);
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    letter-spacing: 0.4em;
    color: var(--color-text);
    position: relative;
    padding: 0.4rem 0;
}

.loader-bento-line {
    display: block;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.loader-bar {
    width: 180px;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}

.loader-bar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(196, 163, 90, 0.3), transparent);
    animation: loader-shimmer 2s infinite;
}

.loader-bar span {
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    animation: loader-progress 2s 0.5s var(--ease-in-out) forwards;
    transform: translateX(-100%);
}

@keyframes loader-slide-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes loader-logo-reveal {
    0% { opacity: 0; transform: translateY(30px) scale(0.95); filter: blur(8px); }
    100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

@keyframes loader-progress {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes loader-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ====================================
   Page Layout
   ==================================== */
.page {
    opacity: 0;
    transition: opacity 1s var(--ease-out);
}

.page.visible {
    opacity: 1;
}

/* ====================================
   Hero Section - Full Viewport
   ==================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 背景画像 */
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.08);
    animation: hero-zoom 20s var(--ease-gentle) forwards;
}

@keyframes hero-zoom {
    to { transform: scale(1); }
}

/* 暗いオーバーレイ (グラデーション) */
.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background:
        linear-gradient(180deg,
            rgba(15, 13, 10, 0.75) 0%,
            rgba(15, 13, 10, 0.55) 30%,
            rgba(15, 13, 10, 0.6) 60%,
            rgba(15, 13, 10, 0.92) 100%),
        radial-gradient(ellipse at 30% 50%,
            rgba(196, 163, 90, 0.06) 0%,
            transparent 60%);
}

/* パーティクルキャンバス */
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 3;
    pointer-events: none;
}

/* ヒーローコンテンツ - 右寄せレイアウト */
.hero-content {
    position: relative;
    z-index: 10;
    text-align: left;
    padding: 2rem;
    max-width: 480px;
    margin-left: auto;
    margin-right: clamp(3rem, 8vw, 10rem);
}

/* 縦書き装飾テキスト（左側） */
.hero-vertical-deco {
    position: absolute;
    left: 3rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    writing-mode: vertical-rl;
    font-family: var(--font-serif);
    font-size: 0.75rem;
    letter-spacing: 0.5em;
    color: var(--color-accent);
    opacity: 0;
    animation: fade-in 1.5s 2s var(--ease-out) forwards;
}

.hero-vertical-deco::before {
    content: '';
    display: block;
    width: 1px;
    height: 40px;
    background: var(--color-accent);
    margin: 0 auto 1rem;
    opacity: 0.5;
}

/* ブランドロゴエリア */
.hero-brand {
    margin-bottom: 2.5rem;
}

.hero-brand-sub {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    letter-spacing: 0.35em;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fade-up 1s 0.5s var(--ease-out) forwards;
}

.hero-brand-main {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 600;
    letter-spacing: 0.15em;
    line-height: 1.1;
    color: var(--color-accent);
    text-shadow:
        0 0 80px rgba(196, 163, 90, 0.3),
        0 0 160px rgba(196, 163, 90, 0.1);
    opacity: 0;
    animation: fade-up 1.2s 0.8s var(--ease-out) forwards;
}

.hero-brand-english {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(0.9rem, 1.5vw, 1.2rem);
    letter-spacing: 0.5em;
    color: var(--color-accent);
    opacity: 0;
    animation: fade-up 1s 1.1s var(--ease-out) forwards;
}

/* 「宗田のお弁当」バッジ */
.hero-bento-badge {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    letter-spacing: 0.4em;
    color: var(--color-text);
    margin-top: 1.2rem;
    padding: 0.6rem 2.5rem;
    border-top: 1px solid rgba(196, 163, 90, 0.4);
    border-bottom: 1px solid rgba(196, 163, 90, 0.4);
    position: relative;
    opacity: 0;
    animation: fade-up 1s 1.2s var(--ease-out) forwards;
}

.hero-bento-badge::before,
.hero-bento-badge::after {
    content: '◇';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.5rem;
    color: var(--color-accent);
}

.hero-bento-badge::before {
    left: 0.8rem;
}

.hero-bento-badge::after {
    right: 0.8rem;
}

/* Coming Soon テキスト（強調版） */
.hero-coming-soon {
    margin-bottom: 2rem;
    opacity: 0;
    animation: fade-up 1s 1.4s var(--ease-out) forwards;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
}

.coming-soon-main {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-accent);
    text-shadow:
        0 0 40px rgba(196, 163, 90, 0.4),
        0 0 80px rgba(196, 163, 90, 0.2);
    position: relative;
    padding-left: 0;
}

.coming-soon-main::before,
.coming-soon-main::after {
    content: '';
    position: absolute;
    top: 50%;
    width: clamp(30px, 5vw, 60px);
    height: 1px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    transform: translateY(-50%);
}

.coming-soon-main::before {
    display: none;
}

.coming-soon-main::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.coming-soon-jp {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    letter-spacing: 0.5em;
    color: var(--color-text);
    border: 1px solid rgba(196, 163, 90, 0.3);
    padding: 0.5rem 2rem;
    clip-path: var(--cut-sm);
    position: relative;
}

.coming-soon-jp::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(196, 163, 90, 0.1), transparent);
}

/* 区切り線 */
.hero-divider {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fade-up 1s 1.6s var(--ease-out) forwards;
}

.hero-divider-line {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.hero-divider-diamond {
    width: 6px;
    height: 6px;
    border: 1px solid var(--color-accent);
    transform: rotate(45deg);
    flex-shrink: 0;
}

/* 説明テキスト */
.hero-desc {
    font-family: var(--font-serif);
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    line-height: 2.2;
    letter-spacing: 0.1em;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fade-up 1s 1.8s var(--ease-out) forwards;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
    text-align: left;
}

/* 準備中メッセージ */
.hero-notice {
    font-family: var(--font-serif);
    font-size: clamp(0.8rem, 1.1vw, 0.9rem);
    letter-spacing: 0.08em;
    color: var(--color-accent-light);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fade-up 1s 2s var(--ease-out) forwards;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
    padding: 0.8rem 1.5rem;
    border: 1px solid rgba(196, 163, 90, 0.2);
    background: rgba(15, 13, 10, 0.5);
    clip-path: var(--cut-sm);
}

/* 本店リンクボタン */
.hero-link {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-family: var(--font-serif);
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    padding: 1rem 2.5rem;
    border: 1px solid rgba(196, 163, 90, 0.5);
    clip-path: var(--cut-md);
    position: relative;
    overflow: hidden;
    transition: color 0.5s var(--ease-gentle), border-color 0.5s;
    opacity: 0;
    animation: fade-up 1s 2s var(--ease-out) forwards;
}

.hero-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-accent);
    transform: translateX(-101%);
    transition: transform 0.5s var(--ease-gentle);
    z-index: -1;
}

.hero-link:hover {
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.hero-link:hover::before {
    transform: translateX(0);
}

.hero-link svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s var(--ease-gentle);
}

.hero-link:hover svg {
    transform: translateX(4px);
}

/* スクロールインジケーター */
.hero-scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    animation: fade-in 1s 2.5s var(--ease-out) forwards;
}

.hero-scroll-hint span {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: rgba(196, 163, 90, 0.3);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    animation: scroll-flow 2s infinite;
}

@keyframes scroll-flow {
    0% { top: -100%; }
    100% { top: 100%; }
}

/* ====================================
   About Section
   ==================================== */
.about {
    position: relative;
    padding: clamp(100px, 15vw, 200px) 0;
    overflow: hidden;
}

.about-inner {
    max-width: min(90%, 1000px);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(3rem, 6vw, 6rem);
    align-items: center;
}

.about-image {
    position: relative;
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

.about-image.revealed {
    opacity: 1;
    transform: translateX(0);
}

.about-image-frame {
    position: relative;
    overflow: hidden;
    clip-path: var(--cut-md);
}

.about-image-frame::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(196, 163, 90, 0.2);
    clip-path: var(--cut-md);
    pointer-events: none;
}

.about-image img {
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    transition: transform 0.8s var(--ease-gentle);
}

.about-image:hover img {
    transform: scale(1.03);
}

/* セクションラベル */
.section-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.section-label-num {
    font-family: var(--font-serif);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
}

.section-label-text {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.section-label-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, rgba(196, 163, 90, 0.3), transparent);
    max-width: 80px;
}

/* About テキスト */
.about-text {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 1s 0.2s var(--ease-out), transform 1s 0.2s var(--ease-out);
}

.about-text.revealed {
    opacity: 1;
    transform: translateX(0);
}

.about-title {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 500;
    letter-spacing: 0.1em;
    line-height: 1.6;
    margin-bottom: 2rem;
    color: var(--color-text);
}

.about-title .accent {
    color: var(--color-accent);
}

.about-desc {
    font-size: 0.9rem;
    line-height: 2.2;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

/* ウォーターマーク */
.about-watermark {
    position: absolute;
    right: -5%;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-serif);
    font-size: clamp(6rem, 15vw, 12rem);
    font-weight: 700;
    color: rgba(196, 163, 90, 0.03);
    writing-mode: vertical-rl;
    pointer-events: none;
    white-space: nowrap;
    user-select: none;
}

/* ====================================
   Features Section
   ==================================== */
.features {
    position: relative;
    padding: clamp(80px, 12vw, 160px) 0;
    background: var(--color-bg-alt);
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(196, 163, 90, 0.2), transparent);
}

.features::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(196, 163, 90, 0.2), transparent);
}

.features-inner {
    max-width: min(90%, 1100px);
    margin: 0 auto;
    text-align: center;
}

.features-title {
    font-family: var(--font-serif);
    font-size: clamp(1.3rem, 2.5vw, 1.8rem);
    font-weight: 500;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

.features-subtitle {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
    margin-bottom: clamp(3rem, 6vw, 5rem);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(196, 163, 90, 0.1);
    clip-path: var(--cut-md);
    background: rgba(196, 163, 90, 0.02);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out),
                border-color 0.5s, background 0.5s;
}

.feature-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:nth-child(2) { transition-delay: 0.15s; }
.feature-card:nth-child(3) { transition-delay: 0.3s; }

.feature-card:hover {
    border-color: rgba(196, 163, 90, 0.3);
    background: rgba(196, 163, 90, 0.05);
}

.feature-card-icon {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-card-num {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    position: relative;
    display: inline-block;
    line-height: 1;
}

.feature-card-num::after {
    content: '';
    display: block;
    width: 30px;
    height: 1px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    margin: 0.6rem auto 0;
}

.feature-card-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.feature-card-en {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.feature-card-desc {
    font-size: 0.85rem;
    line-height: 2;
    color: var(--color-text-muted);
    text-align: left;
}

/* ====================================
   Footer
   ==================================== */
.footer {
    position: relative;
    padding: clamp(60px, 10vw, 120px) 0 2rem;
    text-align: center;
}

.footer-inner {
    max-width: min(90%, 600px);
    margin: 0 auto;
}

.footer-brand {
    margin-bottom: 2rem;
}

.footer-logo-img {
    width: 60px;
    height: auto;
    margin: 0 auto 1rem;
    filter: drop-shadow(0 0 10px rgba(196, 163, 90, 0.3));
}

.footer-brand-name {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.3rem;
}

.footer-brand-sub {
    font-family: var(--font-serif);
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--color-text-muted);
    display: block;
}

.footer-divider {
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    margin: 2rem auto;
}

.footer-info {
    margin-bottom: 2rem;
}

.footer-info p {
    font-size: 0.8rem;
    line-height: 2;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.footer-tel {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-top: 1rem;
    transition: opacity 0.3s;
}

.footer-tel:hover {
    opacity: 0.7;
}

.footer-parent-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    padding: 0.7rem 1.5rem;
    border: 1px solid rgba(196, 163, 90, 0.3);
    clip-path: var(--cut-sm);
    transition: background 0.4s, color 0.4s;
    margin-bottom: 2rem;
}

.footer-parent-link:hover {
    background: var(--color-accent);
    color: var(--color-bg);
}

.footer-parent-link svg {
    width: 14px;
    height: 14px;
}

.footer-copy {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

/* ====================================
   Animations
   ==================================== */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* 金のパーティクル(JS描画) */
@keyframes particle-float {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) translateX(50px); opacity: 0; }
}

/* ====================================
   Responsive
   ==================================== */
@media (max-width: 768px) {
    .hero-vertical-deco {
        display: none;
    }

    /* モバイル: 右寄せ → 中央に */
    .hero-content {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
        padding: 1.5rem;
    }

    .hero-coming-soon {
        align-items: center;
    }

    .coming-soon-main::after {
        background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    }

    .about-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image {
        max-width: 80%;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .hero-brand-main {
        letter-spacing: 0.1em;
    }

    .hero-desc br {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-brand-sub {
        font-size: 0.75rem;
        letter-spacing: 0.2em;
    }

    .hero-link {
        padding: 0.8rem 1.5rem;
        font-size: 0.8rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }
}