body {
            font-family: 'Noto Sans JP', sans-serif;
            color: var(--brand-dark);
            background-color: var(--brand-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            line-height: 2.2; 
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }
        .font-en {
            font-family: 'Montserrat', sans-serif;
        }
        .js-fade-up {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
        }
        .js-fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .animate-underline {
            position: relative;
            display: inline-block;
            padding-bottom: 4px;
        }
        .animate-underline::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1px; 
            background-color: var(--brand-dark);
            transition: width 1.2s cubic-bezier(0.25, 1, 0.5, 1) 0.2s; 
        }
        .js-fade-up.is-visible .animate-underline::after {
            width: 100%;
        }
        .js-fade-up.is-visible .delay-line::after {
            transition-delay: 0.8s; 
        }
        .left-fixed { display: none; }
        .right-fixed { display: none; }

@media (min-width: 1024px) {
            .left-fixed {
                display: block;
                position: fixed;
                top: 0; left: 0;
                width: calc(50vw - 320px);
                height: 100vh;
                z-index: 1;
                background-color: var(--brand-silver);
                border-right: none; 
            }
            .right-fixed {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 0; right: 0;
                width: calc(50vw - 320px);
                height: 100vh;
                z-index: 1;
                background-color: var(--brand-bg);
            }
        }

        .main-container {
                    position: relative;
                    width: 100%;
                    max-width: 640px; 
                    margin: 0 auto;
                    background-color: var(--brand-light);
                    min-height: 100vh;
                    z-index: 10;
                    box-shadow: 1px 2px 4px rgba(0, 0, 0, 0.16);
                    border-left: 1px solid rgba(0, 0, 0, 0.05);
                    border-right: 1px solid rgba(0, 0, 0, 0.05);
                    will-change: transform;
                }
@media (min-width: 1024px) {
            .left-fixed {
                display: block;
                position: fixed;
                top: 0; left: 0;
                width: calc(50vw - 320px);
                height: 100vh;
                z-index: 1;
                background-color: transparent; 
                border-right: 1px solid rgba(0,0,0,0.05); 
            }
            .right-fixed {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 0; right: 0;
                width: calc(50vw - 320px);
                height: 100vh;
                z-index: 1;
                background-color: transparent; 
            }
        }   
        .header {
            position: sticky;
            top: 0;
            width: 100%;
            height: 60px;
            background: rgba(254, 254, 254, 0.95);
            backdrop-filter: blur(10px);
            z-index: 100;
            display: flex;
            justify-content: center;
            align-items: center;
            transition: background-color 0.3s;
        }
        .header-logo img { height: 24px; transition: filter 0.3s; } 

        #menu-toggle span {
            transition: all 0.3s ease-in-out;
        }
        #menu-toggle.is-active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        #menu-toggle.is-active span:nth-child(2) {
            opacity: 0;
        }
        #menu-toggle.is-active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* =========================================
           Brand Motif
           ========================================= */
        .needle-motif {
            display: flex;
            gap: 3px;
            justify-content: center;
            align-items: flex-end;
            margin-bottom: 16px;
            height: 28px;
        }
        .needle-motif span {
            width: 2px;
            background-color: var(--brand-silver);
            border-radius: 2px;
        }
        .needle-motif span:nth-child(1) { height: 14px; }
        .needle-motif span:nth-child(2) { height: 20px; }
        .needle-motif span:nth-child(3) { height: 28px; background-color: var(--brand-dark); }
        .needle-motif span:nth-child(4) { height: 18px; }
        .needle-motif span:nth-child(5) { height: 12px; }

        /* =========================================
           Components
           ========================================= */
        .accordion-content { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.4s ease; }
        .accordion-content.is-open { grid-template-rows: 1fr; }
        .accordion-inner { overflow: hidden; }

        .parallax-wrap { position: relative; overflow: hidden; width: 100%; }
        .parallax-img {
            position: absolute; top: -15%; left: 0; width: 100%; height: 130%;
            object-fit: cover; will-change: transform; transform: translate3d(0, 0, 0);
        }
        
        /* Swiper Custom */
        .swiper-pagination { display: flex; align-items: center; justify-content: center; }
        .swiper-pagination-bullet {
            background-color: var(--brand-border) !important; opacity: 1 !important;
            width: 10px !important; height: 10px !important; border-radius: 50% !important;
            flex-shrink: 0 !important; margin: 0 6px !important; transition: 0.3s ease !important;
        }
        .swiper-pagination-bullet-active {
            background-color: var(--brand-yellow) !important; transform: scale(1.3) !important;
        }
        
        .note-lines {
            line-height: 2.2;
            background-image: linear-gradient(transparent calc(100% - 1px), #F0F0F0 calc(100% - 1px));
            background-size: 100% 2.2em;
            background-position: 0 0;
        }
        
        .media-swiper .swiper-wrapper { transition-timing-function: linear !important; }
        .media-swiper { cursor: grab; }
        .media-swiper:active { cursor: grabbing; }
        .swiper-button-disabled {
            opacity: 0.25 !important;
            pointer-events: none !important;
            cursor: default !important;
        }
        .marker-yellow {
            /* var(--brand-yellow) から #FFF100 に変更 */
            background: linear-gradient(transparent 60%, #FFF100 60%);
            font-weight: bold;
        }
        #loading {
            position: fixed;
            inset: 0;
            z-index: 99999;
            background-color: #FEFEFE; /* 白背景を直接指定 */
            display: flex;
            justify-content: center;
            align-items: center;
            transition: opacity 0.6s ease, visibility 0.6s ease;
        }

        #loading.is-loaded {
            opacity: 0;
            visibility: hidden;
        }

        .loader-circle {
            width: 50px;
            height: 50px;
            border: 4px solid #E5E5E5; /* 薄いグレーの枠線を直接指定 */
            border-top-color: #FFF100; /* 黄色のくるくるを直接指定 */
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
         @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .animate-marker {
            background-image: linear-gradient(transparent 60%, #FFF100 60%);
            background-repeat: no-repeat;
            background-size: 0% 100%;
            background-position: left center;
            transition-property: background-size;
            transition-timing-function: ease-out;
        }
        .js-fade-up.is-visible .animate-marker {
            background-size: 100% 100%;
        }
.media-scroll-container {
    display: flex;
    overflow: hidden;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    padding: 10px 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}
.media-scroll-wrapper {
    display: flex;
    width: fit-content;
    animation: scroll-left 80s linear infinite; 
    will-change: transform;
}
.media-scroll-track {
    display: flex;
    gap: 20px; 
    padding-right: 20px; 
    flex-shrink: 0;
}
@media (hover: hover) {
    .media-scroll-container:hover .media-scroll-wrapper {
        animation-play-state: paused !important;
    }
}
.media-scroll-container.is-paused .media-scroll-wrapper {
    animation-play-state: paused !important;
}
@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); } 
}