:root {
            /* STYLERS Color Palette */
            --c-white: #ffffff;
            --c-black: #111111;
            --c-gray-light: #f5f5f5;
            --c-gray-mid: #e0e0e0;
            --c-gray-dark: #666666;

            /* Typography */
            --font-en: 'Playfair Display', serif;
            --font-ja-serif: 'Shippori Mincho', serif;
            --font-ja-sans: 'Noto Sans JP', sans-serif;

            --spacing-unit: 8px;
        }

        /* Reset & Base */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-ja-sans);
            color: var(--c-black);
            background-color: var(--c-white);
            line-height: 2;
            letter-spacing: 0.12em;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: opacity 0.3s ease;
        }

        a:hover {
            opacity: 0.6;
        }

        ul {
            list-style: none;
        }

        /* Typography */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: normal;
        }

        .text-en {
            font-family: var(--font-en);
            font-weight: 400;
        }

        .text-mincho {
            font-family: var(--font-ja-serif);
            font-weight: 400;
        }

        /* Layout */
        .container {
            width: 100%;
            max-width: 1080px;
            margin: 0 auto;
            padding: 0 40px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

        section {
            padding: 120px 0;
        }

        /* Section Headings */
        .sec-title {
            text-align: center;
            margin-bottom: 80px;
        }

        .sec-title .en {
            display: block;
            font-size: 14px;
            letter-spacing: 0.25em;
            text-transform: uppercase;
            color: var(--c-gray-dark);
            margin-bottom: 15px;
            font-family: var(--font-ja-sans);
        }

        .sec-title .ja {
            display: block;
            font-size: 28px;
            font-family: var(--font-ja-serif);
            letter-spacing: 0.15em;
        }

        /* Header */
        .g-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 50px;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            z-index: 1000;
            border-bottom: 1px solid var(--c-gray-light);
        }

        .g-header__logo {
            font-family: var(--font-en);
            font-size: 24px;
            letter-spacing: 0.1em;
        }

        .g-header__nav ul {
            display: flex;
            gap: 40px;
        }

        .g-header__nav a {
            font-size: 12px;
            letter-spacing: 0.15em;
            text-transform: uppercase;
        }

        .g-header__hamburger {
            display: none;
            flex-direction: column;
            justify-content: space-between;
            width: 30px;
            height: 18px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 1100;
        }

        .g-header__hamburger span {
            width: 100%;
            height: 2px;
            background-color: var(--c-black);
            transition: all 0.3s ease;
        }

        /* Hamburger open state */
        .g-header__hamburger.is-active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .g-header__hamburger.is-active span:nth-child(2) {
            opacity: 0;
        }
        .g-header__hamburger.is-active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        @media (max-width: 768px) {
            .g-header {
                padding: 0 20px;
                height: 60px;
            }

            .g-header__hamburger {
                display: flex;
            }

            .g-header__nav {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background-color: rgba(255, 255, 255, 0.98);
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
                z-index: 1050;
            }

            .g-header__nav.is-active {
                opacity: 1;
                visibility: visible;
            }

            .g-header__nav ul {
                flex-direction: column;
                text-align: center;
                gap: 30px;
            }

            .g-header__nav a {
                font-size: 18px;
            }

            section {
                padding: 80px 0;
            }

            .sec-title {
                margin-bottom: 40px;
            }

            .sec-title .ja {
                font-size: 22px;
            }
        }

        
/* Footer */
        .g-footer {
            padding: 100px 50px 50px;
            border-top: 1px solid var(--c-gray-mid);
            text-align: center;
        }

        .g-footer__logo {
            font-family: var(--font-en);
            font-size: 28px;
            margin-bottom: 30px;
            letter-spacing: 0.15em;
        }

        .g-footer__msg {
            font-family: var(--font-ja-serif);
            font-size: 16px;
            margin-bottom: 60px;
            line-height: 2;
            letter-spacing: 0.2em;
        }

        .g-footer__sns {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-bottom: 60px;
        }

        .g-footer__sns a {
            font-size: 12px;
            letter-spacing: 0.15em;
            text-transform: uppercase;
            font-family: var(--font-ja-sans);
        }

        .g-footer__copy {
            font-size: 10px;
            color: var(--c-gray-dark);
            letter-spacing: 0.1em;
            font-family: var(--font-en);
        }

        /* Floating Action Button (FAB) */
        .fab-btn {
            position: fixed;
            bottom: 40px;
            right: 40px;
            width: 80px;
            height: 80px;
            background-color: var(--c-black);
            color: var(--c-white);
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            /* Space between icon and text */
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            z-index: 1000;
            text-decoration: none;
            border: none;
            font-family: var(--font-ja-serif);
            /* Shippori Mincho */
            font-size: 11px;
            letter-spacing: 0.1em;
            transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease, opacity 0.3s ease;
        }

        .fab-btn:hover {
            opacity: 0.8;
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
            background-color: #333;
            color: var(--c-white);
        }

        .fab-btn img {
            width: 24px;
            height: 24px;
            object-fit: contain;
            filter: brightness(0) invert(1);
            /* Ensure the icon is white */
        }

        @media (max-width: 768px) {
            .fab-btn {
                bottom: 20px;
                right: 20px;
                width: 60px;
                height: 60px;
                font-size: 9px;
            }

            .fab-btn img {
                width: 18px;
                height: 18px;
            }
        }