/*
Theme Name: 清淨母語 頂級單頁主題 (Seijo Bogo Premium Theme)
Theme URI: https://example.com
Author: Antigravity
Description: 台灣自然農法品牌「清淨母語」北京語繁體字單頁推廣主題。
Version: 1.0.0
Author URI: https://example.com
Text Domain: seijobogo-theme
*/

/* =====================================================================
   0. Variables & Reset
   ===================================================================== */
:root {
    /* Colors */
    --color-bg-light: #FAF6F0; /* Silk Beige */
    --color-bg-dark: #111A16;  /* Deep Forest Dark */
    --color-primary: #1B3D30;   /* Forest Green */
    --color-primary-light: #2C5746;
    --color-accent: #C59B27;    /* Aged Gold */
    --color-accent-light: #E0B842;
    --color-text-dark: #2A2E2B; /* Charcoal */
    --color-text-light: #EBECE8;
    --color-text-muted: #7E8580;
    --color-border: rgba(27, 61, 48, 0.1);
    --color-border-light: rgba(235, 236, 232, 0.1);
    
    /* Fonts */
    --font-serif: 'Playfair Display', 'Noto Serif JP', serif;
    --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
    
    /* Container & Spacing */
    --container-width: 1200px;
    --transition-smooth: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    font-family: var(--font-sans);
    line-height: 1.8;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}

/* =====================================================================
   1. Typography & Common Elements
   ===================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.4;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 8rem 0;
}

.dark-bg {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
}

.text-center {
    text-align: center;
}

/* Section Header */
.section-header {
    margin-bottom: 5rem;
}

.section-subtitle {
    font-family: var(--font-serif);
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.8rem;
}

.section-title {
    font-size: 2.5rem;
    color: inherit;
    margin-bottom: 1.5rem;
}

.section-intro {
    max-width: 700px;
    margin: 0 auto 1.5rem;
    color: var(--color-text-muted);
}

.dark-bg .section-intro {
    color: #A5ADA7;
}

.header-line {
    width: 60px;
    height: 2px;
    background-color: var(--color-accent);
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.2rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    background-color: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background-color: #ffffff;
    color: var(--color-primary);
    border-color: #ffffff;
    transform: translateY(-2px);
}

.btn-wide {
    padding-left: 4rem;
    padding-right: 4rem;
}

/* =====================================================================
   2. Header & Navigation
   ===================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
}

.site-header.scrolled {
    background-color: rgba(250, 246, 240, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(27, 61, 48, 0.05);
}

.site-header.scrolled.dark-bg-active {
    background-color: rgba(17, 26, 22, 0.9);
    border-bottom: 1px solid rgba(235, 236, 232, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.logo a {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    flex-direction: column;
}

.site-header.scrolled .logo a {
    color: var(--color-primary);
}

.site-header.scrolled.dark-bg-active .logo a {
    color: var(--color-text-light);
}

.logo-sub {
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    font-family: var(--font-sans);
    opacity: 0.7;
    margin-top: -0.2rem;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 400;
    position: relative;
}

.site-header.scrolled .nav-menu a {
    color: var(--color-text-dark);
}

.site-header.scrolled.dark-bg-active .nav-menu a {
    color: rgba(235, 236, 232, 0.8);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: var(--transition-fast);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a.nav-cta {
    background-color: var(--color-accent);
    color: var(--color-primary) !important;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
}

.nav-menu a.nav-cta:hover {
    background-color: var(--color-primary);
    color: #ffffff !important;
}

.site-header.scrolled.dark-bg-active .nav-menu a.nav-cta:hover {
    background-color: var(--color-text-light);
    color: var(--color-primary) !important;
}

.nav-menu a.nav-cta::after {
    display: none;
}

/* Mobile Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.mobile-nav-toggle span {
    width: 100%;
    height: 2px;
    background-color: #ffffff;
    transition: var(--transition-fast);
}

.site-header.scrolled .mobile-nav-toggle span {
    background-color: var(--color-primary);
}

.site-header.scrolled.dark-bg-active .mobile-nav-toggle span {
    background-color: var(--color-text-light);
}

/* =====================================================================
   3. Hero Section
   ===================================================================== */
.hero-section {
    height: 100vh;
    min-height: 700px;
    position: relative;
    display: flex;
    align-items: center;
    color: #ffffff;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    animation: zoomOutEffect 15s forwards;
    z-index: 1;
}

@keyframes zoomOutEffect {
    to {
        transform: scale(1);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(17, 26, 22, 0.7) 0%, rgba(17, 26, 22, 0.4) 60%, rgba(17, 26, 22, 0.8) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    padding-top: 5rem;
}

.hero-subtitle {
    font-family: var(--font-serif);
    color: var(--color-accent);
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.8rem;
    margin-bottom: 2rem;
    font-weight: 500;
}

.hero-title span {
    display: block;
}

.title-sub {
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 0.5rem;
    font-family: var(--font-sans);
    font-weight: 300;
}

.hero-desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    max-width: 650px;
    line-height: 1.9;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

.scroll-down-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.8rem;
    opacity: 0.7;
    letter-spacing: 0.2em;
}

.scroll-down-indicator .arrow {
    width: 1px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.scroll-down-indicator .arrow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20px;
    background-color: var(--color-accent);
    animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
    0% {
        top: -20px;
    }
    100% {
        top: 50px;
    }
}

/* =====================================================================
   4. Story Section
   ===================================================================== */
.story-section {
    background-color: var(--color-bg-light);
}

.story-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
    align-items: center;
}

.story-image-wrap {
    position: relative;
    padding-right: 2rem;
    padding-bottom: 2rem;
}

.story-image-wrap::before {
    content: '';
    position: absolute;
    top: 2rem;
    left: 2rem;
    right: 0;
    bottom: 0;
    border: 1px solid var(--color-accent);
    z-index: 1;
}

.story-img {
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.img-badge {
    position: absolute;
    bottom: -1rem;
    left: -1rem;
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 1.5rem;
    z-index: 3;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge-num {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
}

.badge-text {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-top: 0.2rem;
}

.story-text {
    padding-left: 1rem;
}

.story-h3 {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 1.8rem;
    position: relative;
}

.story-p {
    color: var(--color-text-dark);
    margin-bottom: 1.5rem;
}

.quote-box {
    margin: 2.5rem 0;
    padding-left: 1.5rem;
    border-left: 3px solid var(--color-accent);
}

.story-quote {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-primary);
    line-height: 1.7;
}

.story-badge-container {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
}

.story-badge {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.badge-icon {
    font-size: 1.5rem;
}

.badge-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* =====================================================================
   4.1 Philosophy Section (養生哲学)
   ===================================================================== */
.philosophy-section {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.philosophy-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 3.5rem 2.5rem;
    transition: var(--transition-smooth);
}

.philosophy-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.04);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.philosophy-card h3 {
    font-size: 1.3rem;
    color: #ffffff;
    margin-bottom: 1.2rem;
}

.philosophy-card p {
    font-size: 0.95rem;
    color: #A5ADA7;
    line-height: 1.8;
}

.philosophy-quote {
    margin-top: 5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 3rem;
}

.serif-text {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-accent);
    max-width: 800px;
    margin: 0 auto;
}

/* =====================================================================
   4.2 Truth Section (自然農法の真実)
   ===================================================================== */
.truth-section {
    background-color: var(--color-bg-light);
}

.truth-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 5rem;
    align-items: center;
}

.truth-text h3 {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 1.8rem;
}

.truth-p {
    margin-bottom: 1.5rem;
    color: var(--color-text-dark);
}

.compare-box {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.compare-item {
    background-color: #ffffff;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    border-left: 4px solid #D1D5D2;
}

.compare-item.danger {
    border-left-color: #C62828;
}

.compare-item.success {
    border-left-color: var(--color-primary);
    background-color: #FAF8F5;
}

.compare-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.compare-header .icon {
    font-size: 1.5rem;
}

.compare-header h4 {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 600;
}

.danger .compare-header h4 {
    color: #C62828;
}

.success .compare-header h4 {
    color: var(--color-primary);
}

.compare-item ul {
    list-style-type: none;
}

.compare-item li {
    font-size: 0.9rem;
    color: var(--color-text-dark);
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.6;
}

.compare-item li::before {
    content: '•';
    position: absolute;
    left: 0.3rem;
    color: var(--color-text-muted);
}

.success li::before {
    color: var(--color-accent);
}

.compare-item li:last-child {
    margin-bottom: 0;
}

/* =====================================================================
   5. Products Section
   ===================================================================== */
.products-section {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.product-item {
    margin-bottom: 12rem;
}

.product-item:last-child {
    margin-bottom: 0;
}

.product-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 5rem;
    align-items: flex-start;
}

.inverted .product-grid {
    grid-template-columns: 0.85fr 1.15fr;
    direction: rtl;
}

.inverted .product-info {
    direction: ltr;
}

.product-info {
    padding: 0;
}

.product-tag {
    display: inline-block;
    background-color: rgba(197, 155, 39, 0.1);
    color: var(--color-accent);
    padding: 0.3rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(197, 155, 39, 0.2);
}

.product-name {
    font-size: 2.2rem;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.product-name .sub-name {
    font-size: 1.2rem;
    opacity: 0.8;
}

.product-tagline {
    font-family: var(--font-serif);
    color: var(--color-accent);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.product-description p {
    color: #C0C8C3;
    margin-bottom: 1.5rem;
}

/* Benefit Box */
.benefit-box {
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.benefit-box h4, .recipe-box h4, .checklist-box h4 {
    font-family: var(--font-sans);
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.benefit-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.benefit-item {
    background-color: rgba(255, 255, 255, 0.02);
    padding: 1.2rem 1.8rem;
    border-left: 2px solid var(--color-accent);
}

.benefit-item strong {
    display: block;
    color: #ffffff;
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
}

.benefit-item p {
    font-size: 0.85rem;
    color: #A5ADA7;
    margin-bottom: 0;
    line-height: 1.6;
}

/* Recipe Grid */
.recipe-box {
    margin-top: 3.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.recipe-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.recipe-card-mini {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    transition: var(--transition-fast);
}

.recipe-card-mini:hover {
    border-color: rgba(197, 155, 39, 0.3);
    background-color: rgba(255, 255, 255, 0.03);
}

.recipe-card-mini h5 {
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    font-family: var(--font-sans);
}

.recipe-card-mini p {
    font-size: 0.8rem;
    color: #A5ADA7;
    margin: 0;
    line-height: 1.6;
}

/* Checklist Box */
.checklist-box {
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.check-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.check-list li {
    font-size: 0.9rem;
    color: #C0C8C3;
    position: relative;
    padding-left: 1.8rem;
    line-height: 1.6;
}

.check-list li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

/* Pineapple Specific Points */
.pineapple-points {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2.5rem;
}

.point-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.point-item .num {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    min-width: 60px;
    text-align: right;
    position: relative;
    top: -5px;
}

.point-item .text strong {
    display: block;
    color: #ffffff;
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}

.point-item .text p {
    font-size: 0.85rem;
    color: #A5ADA7;
    margin: 0;
    line-height: 1.6;
}

/* Usage Guide */
.usage-guide {
    background-color: rgba(255, 255, 255, 0.03);
    border-left: 2px solid var(--color-accent);
    padding: 1.5rem;
    margin-top: 3rem;
}

.usage-guide h4 {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.usage-guide p {
    font-size: 0.85rem;
    color: #A5ADA7;
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.usage-guide p strong {
    color: #ffffff;
    font-size: 1.1rem;
}

.time-schedule {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-top: 0.8rem;
}

.time-schedule span {
    color: #A5ADA7;
    font-weight: normal;
}

/* Product Visual */
.product-visual {
    position: relative;
    position: sticky;
    top: 8rem;
}

.product-image-container {
    position: relative;
    z-index: 2;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.product-img {
    width: 100%;
    transition: transform 1.2s cubic-bezier(0.15, 0.85, 0.35, 1);
}

.product-image-container:hover .product-img {
    transform: scale(1.05);
}

.visual-decor {
    position: absolute;
    top: -2rem;
    left: -2rem;
    right: 2rem;
    bottom: 2rem;
    border: 1px solid rgba(197, 155, 39, 0.2);
    z-index: -1;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.inverted .visual-decor {
    left: 2rem;
    right: -2rem;
}

.product-image-container:hover + .visual-decor {
    transform: translate(10px, 10px);
}

.inverted .product-image-container:hover + .visual-decor {
    transform: translate(-10px, 10px);
}

.visual-quote {
    margin-top: 2rem;
    text-align: center;
    padding: 0 1rem;
}

.visual-quote p {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--color-accent);
    line-height: 1.7;
    font-style: italic;
}

/* =====================================================================
   6. Craftsmanship Section
   ===================================================================== */
.craft-section {
    background-color: var(--color-bg-light);
}

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

.craft-card {
    background-color: #ffffff;
    padding: 3.5rem 2.5rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(27, 61, 48, 0.03);
    transition: var(--transition-smooth);
    position: relative;
    top: 0;
}

.craft-card:hover {
    top: -10px;
    box-shadow: 0 25px 50px rgba(27, 61, 48, 0.08);
    border-color: rgba(197, 155, 39, 0.3);
}

.craft-icon {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    display: block;
    line-height: 1;
}

.craft-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 1.2rem;
}

.craft-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* =====================================================================
   6.1 Range Section (日常の調味料ラインナップ)
   ===================================================================== */
.range-section {
    background-color: var(--color-bg-dark);
}

.range-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 5rem;
    align-items: center;
}

.range-content p {
    color: #A5ADA7;
    margin-bottom: 1.5rem;
}

.range-philosophy {
    border-left: 2px solid var(--color-accent);
    padding-left: 1.5rem;
    color: var(--color-accent) !important;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.05rem;
    line-height: 1.7;
    margin-top: 2rem;
}

.range-list {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.range-category-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition-fast);
}

.range-category-card:hover {
    border-color: var(--color-accent);
    background-color: rgba(255, 255, 255, 0.04);
}

.cat-icon {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
}

.range-category-card h4 {
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-family: var(--font-sans);
}

.range-category-card p {
    font-size: 0.85rem;
    color: #A5ADA7;
    margin: 0;
    line-height: 1.6;
}

/* =====================================================================
   7. Info Section (Storage & Warning)
   ===================================================================== */
.info-section {
    background-color: var(--color-bg-light);
}

.info-box {
    background-color: #ffffff;
    border: 1px solid rgba(27, 61, 48, 0.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.02);
    padding: 5rem 4rem;
    position: relative;
}

.info-box::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px solid var(--color-accent);
    opacity: 0.15;
    pointer-events: none;
}

.info-title {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 3.5rem;
    text-align: center;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.info-col h3 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1.2rem;
}

.info-col p {
    color: var(--color-text-dark);
    font-size: 0.95rem;
    line-height: 1.8;
}

.info-footer {
    border-top: 1px solid rgba(27, 61, 48, 0.08);
    padding-top: 3rem;
    text-align: center;
}

.info-footer p {
    max-width: 800px;
    margin: 0 auto;
    font-family: var(--font-serif);
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--color-primary);
}

/* =====================================================================
   7.1 FAQ Section (よくある質問)
   ===================================================================== */
.faq-section {
    background-color: var(--color-bg-dark);
}

.faq-accordion-wrap {
    max-width: 850px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 1rem;
}

.faq-trigger {
    width: 100%;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    padding: 2rem 0;
    cursor: pointer;
    text-align: left;
    outline: none;
    color: #ffffff;
}

.faq-q {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-right: 1.5rem;
    line-height: 1;
}

.faq-trigger h3 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 500;
    flex-grow: 1;
    margin: 0;
}

.faq-icon {
    width: 16px;
    height: 16px;
    position: relative;
    margin-left: 2rem;
    flex-shrink: 0;
}

.faq-icon::before, .faq-icon::after {
    content: '';
    position: absolute;
    background-color: var(--color-accent);
    transition: transform 0.3s ease;
}

/* Horizontal line */
.faq-icon::before {
    top: 7px;
    left: 0;
    width: 16px;
    height: 2px;
}

/* Vertical line */
.faq-icon::after {
    top: 0;
    left: 7px;
    width: 2px;
    height: 16px;
}

/* Open states */
.faq-item.active .faq-icon::after {
    transform: rotate(90deg);
    opacity: 0;
}

.faq-item.active .faq-icon::before {
    transform: rotate(180deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.3s ease;
}

.faq-item.active .faq-content {
    opacity: 1;
}

.faq-content-inner {
    padding: 0 0 2rem 3rem;
    color: #A5ADA7;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* =====================================================================
   8. Contact Section
   ===================================================================== */
.contact-section {
    background-color: var(--color-bg-light);
}

.contact-form-wrap {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 4rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.04);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.form-group {
    position: relative;
}

.floating-group input,
.floating-group select,
.floating-group textarea {
    width: 100%;
    padding: 0.8rem 0;
    border: none;
    border-bottom: 1px solid #D1D5D2;
    background-color: transparent;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text-dark);
    outline: none;
    transition: var(--transition-fast);
}

.floating-group textarea {
    resize: none;
}

.floating-group input:focus,
.floating-group select:focus,
.floating-group textarea:focus {
    border-bottom: 1px solid var(--color-primary);
}

.floating-group label {
    position: absolute;
    top: 0.8rem;
    left: 0;
    color: var(--color-text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-fast);
}

.floating-group label .req {
    color: #D32F2F;
}

/* Focus and Active states for Floating Labels */
.floating-group input:focus ~ label,
.floating-group input:not(:placeholder-shown) ~ label,
.floating-group textarea:focus ~ label,
.floating-group textarea:not(:placeholder-shown) ~ label,
.floating-group select:focus ~ label,
.floating-group select:valid ~ label {
    top: -1.2rem;
    font-size: 0.75rem;
    color: var(--color-primary);
    font-weight: 500;
}

.form-status {
    font-size: 0.9rem;
    text-align: center;
    min-height: 24px;
}

.form-status.success {
    color: #2E7D32;
}

.form-status.error {
    color: #C62828;
}

/* Spinner / Loading for form submit */
.btn-text {
    transition: var(--transition-fast);
}

.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
    position: absolute;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.submitting .btn-text {
    opacity: 0;
}

.submitting .spinner {
    display: block;
}

/* =====================================================================
   9. Footer
   ===================================================================== */
.site-footer {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: 5rem 0 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4rem;
}

.footer-brand h2 {
    font-size: 1.8rem;
    color: #ffffff;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #A5ADA7;
    max-width: 400px;
    font-size: 0.85rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-end;
}

.footer-links a {
    font-size: 0.85rem;
    color: #A5ADA7;
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    color: #7E8580;
    font-size: 0.75rem;
}

/* =====================================================================
   10. Scroll Animation and Reveal Effects
   ===================================================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    pointer-events: none;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* =====================================================================
   11. Responsive Design
   ===================================================================== */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .story-grid {
        gap: 3rem;
    }
    
    .truth-grid {
        gap: 3rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .inverted .product-grid {
        grid-template-columns: 1fr;
    }
    
    .product-visual {
        position: static;
    }
    
    .craft-features {
        gap: 2rem;
    }
    
    .range-grid {
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 5rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Header & Navigation */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-bg-light);
        z-index: 1050;
        padding: 6rem 2rem 2rem;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
        transition: var(--transition-smooth);
    }
    
    .site-header.scrolled.dark-bg-active .nav-menu {
        background-color: var(--color-bg-dark);
    }
    
    .nav-menu.open {
        right: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }
    
    .nav-menu a {
        color: var(--color-text-dark) !important;
        font-size: 1.1rem;
    }
    
    .site-header.scrolled.dark-bg-active .nav-menu a {
        color: var(--color-text-light) !important;
    }
    
    .nav-menu a.nav-cta {
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }
    
    /* Hero */
    .hero-title {
        font-size: 2.8rem;
    }
    
    .title-sub {
        font-size: 1.4rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    /* Story & Philosophy Grid */
    .story-grid, .philosophy-grid, .truth-grid, .range-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .story-image-wrap {
        padding-right: 0;
        padding-bottom: 0;
    }
    
    .story-image-wrap::before {
        display: none;
    }
    
    /* Product Item spacing */
    .product-item {
        margin-bottom: 8rem;
    }
    
    .recipe-grid {
        grid-template-columns: 1fr;
    }
    
    .visual-decor {
        display: none;
    }
    
    /* Craftsmanship */
    .craft-features {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* Info Box */
    .info-box {
        padding: 3rem 2rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* FAQ content padding */
    .faq-content-inner {
        padding-left: 1.5rem;
    }
    
    /* Contact Form */
    .contact-form-wrap {
        padding: 2.5rem 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    /* Footer */
    .footer-container {
        flex-direction: column;
        gap: 3rem;
    }
    
    .footer-links ul {
        align-items: flex-start;
    }
}