/* ===== KOREVO APPLE DESIGN SYSTEM ===== */
/* Apple-inspired unified CSS for all pages */

/* ===== CSS VARIABLES ===== */
:root {
    /* Apple Color Palette */
    --apple-black: #000000;
    --apple-dark: #1D1D1F;
    --apple-gray: #F5F5F7;
    --apple-white: #FFFFFF;
    --apple-medium-gray: #86868B;
    --apple-light-gray: #F2F2F7;
    --apple-blue: #007AFF;
    --apple-orange: #FF9500;
    --apple-green: #34C759;
    --apple-red: #FF3B30;
    
    /* KOREVO Brand Colors (refined) */
    --korevo-primary: #1D1D1F;
    --korevo-secondary: #515154;
    --korevo-accent: #007AFF;
    --korevo-gold: #FFD60A;
    
    /* Semantic Colors */
    --text-primary: var(--apple-black);
    --text-secondary: var(--apple-dark);
    --text-tertiary: var(--apple-medium-gray);
    --text-quaternary: #C7C7CC;
    
    --bg-primary: var(--apple-white);
    --bg-secondary: var(--apple-gray);
    --bg-tertiary: var(--apple-light-gray);
    
    --separator: rgba(60, 60, 67, 0.12);
    --separator-opaque: #C6C6C8;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Font Sizes (Apple-like scale) */
    --font-size-caption2: 11px;
    --font-size-caption1: 12px;
    --font-size-footnote: 13px;
    --font-size-subheadline: 15px;
    --font-size-callout: 16px;
    --font-size-body: 17px;
    --font-size-headline: 17px;
    --font-size-title3: 20px;
    --font-size-title2: 22px;
    --font-size-title1: 28px;
    --font-size-large-title: 34px;
    
    /* Display Font Sizes */
    --font-size-display-small: 48px;
    --font-size-display-medium: 56px;
    --font-size-display-large: 76px;
    
    /* Spacing (8pt grid system) */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-3xl: 24px;
    --radius-full: 50%;
    
    /* Shadows (Apple-like) */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    
    /* Apple-specific shadows */
    --shadow-apple-card: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-apple-modal: 0 25px 50px rgba(0, 0, 0, 0.25);
    
    /* Z-index scale */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* ===== RESET & BASE STYLES ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: 1.47059;
    font-weight: var(--font-weight-regular);
    letter-spacing: -0.022em;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.47059;
    letter-spacing: -0.022em;
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.083;
    letter-spacing: -0.003em;
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
}

.large-title, h1 {
    font-size: var(--font-size-large-title);
    font-weight: var(--font-weight-bold);
    line-height: 1.176;
    letter-spacing: 0.007em;
}

.title1, h2 {
    font-size: var(--font-size-title1);
    line-height: 1.143;
    letter-spacing: 0.007em;
}

.title2, h3 {
    font-size: var(--font-size-title2);
    line-height: 1.273;
    letter-spacing: 0.007em;
}

.title3, h4 {
    font-size: var(--font-size-title3);
    line-height: 1.25;
    letter-spacing: -0.012em;
}

.headline, h5 {
    font-size: var(--font-size-headline);
    font-weight: var(--font-weight-semibold);
    line-height: 1.294;
    letter-spacing: -0.024em;
}

.body {
    font-size: var(--font-size-body);
    line-height: 1.47059;
    letter-spacing: -0.022em;
}

.callout {
    font-size: var(--font-size-callout);
    line-height: 1.375;
    letter-spacing: -0.031em;
}

.subheadline {
    font-size: var(--font-size-subheadline);
    line-height: 1.333;
    letter-spacing: -0.023em;
}

.footnote {
    font-size: var(--font-size-footnote);
    line-height: 1.385;
    letter-spacing: -0.078em;
}

.caption1 {
    font-size: var(--font-size-caption1);
    line-height: 1.333;
    letter-spacing: 0em;
}

.caption2 {
    font-size: var(--font-size-caption2);
    line-height: 1.364;
    letter-spacing: 0.066em;
}

p {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-secondary);
}

a {
    color: var(--apple-blue);
    text-decoration: none;
    transition: opacity 0.17s ease-out;
}

a:hover {
    opacity: 0.8;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 0.5px solid var(--separator);
    z-index: var(--z-fixed);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1024px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    height: 44px;
}


.logo {
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: var(--spacing-xl);
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: var(--font-size-callout);
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-sm) 0;
    transition: opacity 0.17s ease-out;
    cursor: pointer;
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    opacity: 0.8;
}

/* ===== DROPDOWN MENUS ===== */
.dropdown,
.mega-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-apple-card);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: var(--z-dropdown);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.nav-item:hover .dropdown,
.nav-item:hover .mega-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown {
    min-width: 200px;
    padding: var(--spacing-sm);
}

.mega-dropdown {
    min-width: 600px;
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
}

.dropdown-section h4 {
    font-size: var(--font-size-footnote);
    font-weight: var(--font-weight-semibold);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.066em;
    margin-bottom: var(--spacing-md);
}

.dropdown-item {
    display: block;
    padding: var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background-color 0.17s ease-out;
    font-size: var(--font-size-callout);
    cursor: pointer;
}

.dropdown-item:hover {
    background-color: var(--bg-secondary);
}

.dropdown-item.active {
    background-color: var(--apple-blue);
    color: var(--bg-primary);
}

/* ===== LANGUAGE SELECTOR ===== */
.lang-selector {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.lang-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: transparent;
    border: 0.5px solid var(--separator);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-footnote);
    text-decoration: none;
    transition: all 0.17s ease-out;
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--apple-blue);
    color: var(--bg-primary);
    border-color: var(--apple-blue);
}

/* ===== MOBILE MENU ===== */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 3px;
    cursor: pointer;
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
}

.menu-toggle span {
    width: 18px;
    height: 1px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ===== BREADCRUMB ===== */
.breadcrumb-nav {
    background: var(--bg-secondary);
    border-bottom: 0.5px solid var(--separator);
    padding: var(--spacing-md) 0;
    margin-top: 44px;
}

.breadcrumb {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-footnote);
}

.breadcrumb-item {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: opacity 0.17s ease-out;
}

.breadcrumb-item:hover {
    opacity: 0.8;
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

.breadcrumb-separator {
    color: var(--text-quaternary);
}

/* ===== PAGE HEADER ===== */
.page-header {
    background: var(--bg-primary);
    padding: var(--spacing-4xl) 0 var(--spacing-3xl);
    text-align: center;
    position: relative;
}

.page-header-content {
    max-width: 692px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.page-icon {
    font-size: var(--font-size-display-small);
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.page-title {
    font-size: var(--font-size-display-medium);
    font-weight: var(--font-weight-bold);
    line-height: 1.07143;
    letter-spacing: -0.005em;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.page-subtitle {
    font-size: var(--font-size-title2);
    font-weight: var(--font-weight-regular);
    color: var(--text-secondary);
    line-height: 1.273;
    letter-spacing: 0.007em;
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #000000 0%, #1D1D1F 50%, #2C2C2E 100%);
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    opacity: 0.6;
    object-fit: cover;
    transition: opacity 1s ease;
}

.hero-video.loaded {
    opacity: 0.8;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.1) 50%, rgba(0, 0, 0, 0.3) 100%);
    z-index: 2;
}

.hero-content {
    text-align: center;
    color: #FFFFFF;
    position: relative;
    z-index: 3;
    max-width: 692px;
    padding: 0 var(--spacing-lg);
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content h1 {
    font-size: var(--font-size-display-large);
    font-weight: var(--font-weight-bold);
    line-height: 1.05263;
    letter-spacing: -0.015em;
    margin-bottom: var(--spacing-lg);
    color: #FFFFFF;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-content .subtitle {
    font-size: var(--font-size-title1);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-lg);
    color: #FFFFFF;
    opacity: 0.95;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.hero-content .description {
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-regular);
    line-height: 1.4;
    margin-bottom: var(--spacing-2xl);
    color: #FFFFFF;
    opacity: 0.9;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* ===== MAIN CONTENT SECTIONS ===== */
.main-content {
    background: var(--bg-primary);
    min-height: calc(100vh - 200px);
}

/* Hero下 主要部分 */
.intro-section {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-primary);
    text-align: center;
}

.intro-content {
    max-width: 692px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.intro-title {
    font-size: var(--font-size-display-small);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.08333;
    letter-spacing: -0.003em;
}

.intro-description {
    font-size: var(--font-size-title3);
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: var(--spacing-2xl);
}

/* Features Section */
.features-section {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-secondary);
}

.features-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.features-title {
    font-size: var(--font-size-display-small);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.features-subtitle {
    font-size: var(--font-size-title2);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.feature-card {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-apple-card);
}

.feature-icon {
    font-size: var(--font-size-display-small);
    margin-bottom: var(--spacing-lg);
    display: block;
}

.feature-title {
    font-size: var(--font-size-title2);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    font-size: var(--font-size-body);
    color: var(--text-secondary);
    line-height: 1.47059;
}

/* Business Overview Section */
.business-section {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-primary);
}

.business-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.business-title {
    font-size: var(--font-size-display-small);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.business-subtitle {
    font-size: var(--font-size-title2);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.business-card {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--apple-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.business-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-apple-card);
}

.business-card:hover::before {
    transform: scaleX(1);
}

.business-icon {
    font-size: var(--font-size-display-small);
    margin-bottom: var(--spacing-lg);
    display: block;
}

.business-card-title {
    font-size: var(--font-size-title2);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.business-card-description {
    font-size: var(--font-size-body);
    color: var(--text-secondary);
    line-height: 1.47059;
    margin-bottom: var(--spacing-lg);
}

.business-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.business-feature-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 980px;
    font-size: var(--font-size-caption1);
    font-weight: var(--font-weight-medium);
}

.business-cta {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--apple-blue);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 980px;
    font-size: var(--font-size-callout);
    font-weight: var(--font-weight-medium);
    transition: all 0.17s ease-out;
}

.business-cta:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-4xl) 0;
    background: var(--apple-dark);
    color: var(--bg-primary);
    text-align: center;
}

.cta-content {
    max-width: 692px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.cta-title {
    font-size: var(--font-size-display-small);
    font-weight: var(--font-weight-bold);
    color: var(--bg-primary);
    margin-bottom: var(--spacing-lg);
}

.cta-subtitle {
    font-size: var(--font-size-title2);
    color: var(--bg-primary);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
}

.container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.content-section {
    padding: var(--spacing-3xl) 0;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: 980px;
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.17s ease-out;
    white-space: nowrap;
    line-height: 1.47059;
    letter-spacing: -0.022em;
}

.btn-primary {
    background: var(--apple-blue);
    color: var(--bg-primary);
}

.btn-primary:hover {
    opacity: 0.8;
}

.btn-secondary {
    background: transparent;
    color: var(--apple-blue);
    border: 0.5px solid var(--apple-blue);
}

.btn-secondary:hover {
    background: var(--apple-blue);
    color: var(--bg-primary);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 0.5px solid var(--separator);
}

.btn-outline:hover {
    background: var(--bg-secondary);
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    background: var(--apple-blue);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 980px;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-body);
    transition: all 0.17s ease-out;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
}

.cta-btn:hover {
    opacity: 0.8;
}

.cta-btn.secondary {
    background: transparent;
    color: var(--bg-primary);
    border: 0.5px solid rgba(255, 255, 255, 0.6);
}

.cta-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-apple-card);
    transform: translateY(-2px);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-callout);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-md);
    font-size: var(--font-size-body);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.17s ease-out;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 96px;
    line-height: 1.47059;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

/* ===== GRID LAYOUTS ===== */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ===== MODALS ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-lg);
}

.modal-content {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-apple-modal);
    max-width: 560px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: all 0.3s ease;
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 0.5px solid var(--separator);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 0.5px solid var(--separator);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.close-btn {
    background: none;
    border: none;
    font-size: var(--font-size-title2);
    cursor: pointer;
    color: var(--text-tertiary);
    transition: color 0.17s ease-out;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-primary);
    border-top: 0.5px solid var(--separator);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h3 {
    font-size: var(--font-size-headline);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.footer-section p {
    font-size: var(--font-size-callout);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.17s ease-out;
}

.footer-section a:hover {
    color: var(--apple-blue);
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 0.5px solid var(--separator);
    color: var(--text-tertiary);
    font-size: var(--font-size-footnote);
}

/* ===== PAGE-SPECIFIC STYLES ===== */

/* Greeting Page */
.greeting-section {
    padding: var(--spacing-4xl) 0;
}

.greeting-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.ceo-info {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    text-align: center;
    position: sticky;
    top: calc(44px + var(--spacing-lg));
}

.ceo-photo {
    width: 160px;
    height: 160px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--spacing-lg);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-title1);
    color: var(--text-tertiary);
    overflow: hidden;
}

.ceo-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.photo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    color: var(--text-tertiary);
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-medium);
}

.ceo-details h2 {
    font-size: var(--font-size-title2);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.ceo-details .title {
    color: var(--text-secondary);
    font-size: var(--font-size-body);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    font-size: var(--font-size-callout);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    /* 텍스트가 여러 줄로 넘어가지 않게 합니다. */
    white-space: nowrap; 
    /* 넘치는 텍스트를 숨깁니다. */
    overflow: hidden; 
    /* 숨겨진 텍스트를 줄임표(...)로 표시합니다. */
    text-overflow: ellipsis;
}

.email-address {
    /* 텍스트를 왼쪽으로 정렬합니다. */
    text-align: left;
    /* 텍스트를 한 줄로 표시하고 넘치는 부분을 처리합니다. */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.greeting-content {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-2xl);
}

.greeting-content h3 {
    color: var(--text-primary);
    font-size: var(--font-size-title2);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.message-section p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.47059;
    color: var(--text-secondary);
}

.signature {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 0.5px solid var(--separator);
    text-align: right;
}

.signature .name {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

/* Contact Page */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.contact-info,
.contact-form {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 0.5px solid var(--separator);
}

.section-title {
    font-size: var(--font-size-title1);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    transition: all 0.17s ease-out;
}

.contact-item:hover {
    background: var(--bg-tertiary);
}

.contact-icon {
    font-size: var(--font-size-title2);
    color: var(--apple-blue);
    background: rgba(0, 122, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    min-width: 48px;
    text-align: center;
}

.contact-details h3 {
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-details p {
    color: var(--text-secondary);
    line-height: 1.47059;
}

.submit-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--apple-blue);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.17s ease-out;
}

.submit-btn:hover {
    opacity: 0.8;
}

/* Dining Set Page */
.filter-section {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.filter-left {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.filter-label {
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    font-size: var(--font-size-callout);
}

.filter-tags {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-tag {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: none;
    border-radius: 980px;
    font-size: var(--font-size-footnote);
    cursor: pointer;
    transition: all 0.17s ease-out;
    font-weight: var(--font-weight-medium);
}

.filter-tag:hover,
.filter-tag.active {
    background: var(--apple-blue);
    color: var(--bg-primary);
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    font-size: var(--font-size-callout);
    cursor: pointer;
    transition: all 0.17s ease-out;
}

.filter-select:focus {
    outline: none;
    border-color: var(--apple-blue);
}

.view-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.view-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.view-btn {
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.17s ease-out;
    font-size: var(--font-size-callout);
}

.view-btn:hover,
.view-btn.active {
    background: var(--apple-blue);
    color: var(--bg-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-apple-card);
}

.product-image {
    height: 200px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-display-small);
    position: relative;
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 980px;
    font-size: var(--font-size-caption1);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
}

.product-badge.new {
    background: var(--apple-orange);
    color: var(--bg-primary);
}

.product-badge.bestseller {
    background: var(--apple-green);
    color: var(--bg-primary);
}

.product-info {
    padding: var(--spacing-lg);
}

.product-category {
    font-size: var(--font-size-caption1);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.066em;
    margin-bottom: var(--spacing-sm);
}

.product-name {
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.47059;
}

.product-features {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.feature-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 980px;
    font-size: var(--font-size-caption1);
    font-weight: var(--font-weight-medium);
}

.product-price {
    margin-bottom: var(--spacing-lg);
}

.price {
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.original-price {
    font-size: var(--font-size-body);
    color: var(--text-tertiary);
    text-decoration: line-through;
    margin-right: var(--spacing-sm);
}

.discount {
    font-size: var(--font-size-callout);
    color: var(--apple-orange);
    font-weight: var(--font-weight-semibold);
    margin-left: var(--spacing-sm);
}

.add-to-cart {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--apple-blue);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.17s ease-out;
}

.add-to-cart:hover {
    opacity: 0.8;
}

/* Notice Page */
.notice-section {
    padding: var(--spacing-4xl) 0;
}

.notice-controls {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
}

.search-filter-container {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 0.5px solid var(--separator);
    border-radius: 980px;
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all 0.17s ease-out;
}

.search-box:focus-within {
    border-color: var(--apple-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.search-input {
    border: none;
    outline: none;
    flex: 1;
    font-size: var(--font-size-body);
    background: transparent;
    color: var(--text-primary);
}

.search-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: color 0.17s ease-out;
}

.search-btn:hover {
    color: var(--apple-blue);
}

.notice-list {
    background: var(--bg-primary);
    border: 0.5px solid var(--separator);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.notice-item {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 0.5px solid var(--separator);
    transition: all 0.17s ease-out;
    cursor: pointer;
}

.notice-item:hover {
    background: var(--bg-secondary);
}

.notice-item:last-child {
    border-bottom: none;
}

.notice-item.important {
    background: rgba(255, 149, 0, 0.1);
    border-left: 3px solid var(--apple-orange);
}

.notice-item.new {
    background: rgba(0, 122, 255, 0.05);
    border-left: 3px solid var(--apple-blue);
}

.notice-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 980px;
    font-size: var(--font-size-caption1);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.066em;
    margin-bottom: var(--spacing-sm);
}

.notice-badge.important {
    background: var(--apple-orange);
    color: var(--bg-primary);
}

.notice-badge.new {
    background: var(--apple-blue);
    color: var(--bg-primary);
}

.notice-title {
    font-size: var(--font-size-title3);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.25;
}

.notice-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-footnote);
    color: var(--text-tertiary);
}

.notice-category {
    background: var(--bg-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 980px;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 44px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: saturate(180%) blur(20px);
        -webkit-backdrop-filter: saturate(180%) blur(20px);
        border-top: 0.5px solid var(--separator);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: var(--z-dropdown);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-item {
        width: 100%;
        border-bottom: 0.5px solid var(--separator);
    }

    .nav-link {
        padding: var(--spacing-lg);
        border-radius: var(--radius-md);
    }

    .dropdown,
    .mega-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        margin-top: 0;
        box-shadow: none;
        border: none;
        background: var(--bg-secondary);
        border-radius: var(--radius-md);
        margin: var(--spacing-md) 0;
    }

    .mega-dropdown {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .menu-toggle {
        display: flex;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .greeting-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .filter-section {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .search-filter-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-btn {
        width: 100%;
        max-width: 300px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .page-title {
        font-size: var(--font-size-display-small);
    }

    .hero-content h1 {
        font-size: var(--font-size-display-medium);
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-md);
        height: 44px;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .page-header-content,
    .hero-content {
        padding: 0 var(--spacing-md);
    }

    .greeting-content,
    .contact-info,
    .contact-form,
    .card {
        padding: var(--spacing-lg);
    }

    .notice-controls,
    .filter-section {
        padding: var(--spacing-lg);
    }

    .product-card {
        margin-bottom: var(--spacing-lg);
    }

    .notice-item {
        padding: var(--spacing-md);
    }

    .notice-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #F2F2F7;
        --text-secondary: #EBEBF5;
        --text-tertiary: #EBEBF5;
        --text-quaternary: #EBEBF5;
        
        --bg-primary: #000000;
        --bg-secondary: #1C1C1E;
        --bg-tertiary: #2C2C2E;
        
        --separator: rgba(84, 84, 88, 0.65);
        --separator-opaque: #38383A;
    }
}

/* ===== FOCUS STATES ===== */
*:focus {
    outline: 2px solid var(--apple-blue);
    outline-offset: 2px;
}

button:focus,
.btn:focus,
.cta-btn:focus {
    outline: 2px solid var(--apple-blue);
    outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
    .header,
    .nav-container,
    .breadcrumb-nav,
    .footer,
    .cta-buttons,
    .menu-toggle,
    .lang-selector {
        display: none !important;
    }

    .main-content {
        margin-top: 0 !important;
    }

    .page-header {
        background: none !important;
        color: var(--text-primary) !important;
        padding: var(--spacing-lg) 0 !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
    }

    .container {
        max-width: none;
        padding: 0;
    }
}

/* ===== UTILITY CLASSES ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.no-translate { translate: no; }

/* Loading States */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--bg-secondary);
    border-top: 2px solid var(--apple-blue);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-tertiary);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--apple-blue);
}

/* Selection Styling */
::selection {
    background: rgba(0, 122, 255, 0.2);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(0, 122, 255, 0.2);
    color: var(--text-primary);
}