/* ===================================
   Design System - 驻盛商业
   Based on ui-ux-pro-max MASTER.md
   Style: Minimalism & Swiss Style
   Colors: Trust Teal + Professional Blue
   Fonts: Cinzel (heading) / Noto Sans SC (body)
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

/* === CSS Variables === */
:root {
    --color-primary: #1E3A5F;
    --color-primary-dark: #152B47;
    --color-primary-light: #2563EB;
    --color-secondary: #3B82F6;
    --color-cta: #2563EB;
    --color-cta-hover: #1D4ED8;
    --color-background: #F0F4FA;
    --color-background-alt: #F8FAFF;
    --color-text: #1E293B;
    --color-text-muted: #475569;
    --color-text-light: #64748B;
    --color-white: #FFFFFF;
    --color-dark: #0F172A;
    --color-border: #CBD5E1;
    --color-gold: #D4A853;

    --font-heading: 'Cinzel', serif;
    --font-body: 'Noto Sans SC', 'Josefin Sans', sans-serif;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    --shadow-sm: 0 1px 2px rgba(30, 58, 95, 0.06);
    --shadow-md: 0 4px 12px rgba(30, 58, 95, 0.08);
    --shadow-lg: 0 10px 24px rgba(30, 58, 95, 0.12);
    --shadow-xl: 0 20px 40px rgba(30, 58, 95, 0.15);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --navbar-height: 72px;
    --transition: 200ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-background);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--color-primary);
}

/* Focus visible for keyboard users */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 16px;
    left: 16px;
    right: 16px;
    z-index: 50;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(30, 58, 95, 0.08);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    top: 8px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-lg);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-xl);
    height: var(--navbar-height);
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
}

.logo-divider {
    width: 1px;
    height: 20px;
    background: var(--color-border);
}

.logo-subtitle {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: var(--space-xs) 0;
    cursor: pointer;
    transition: color var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    color: var(--color-text);
}

.toggle-icon {
    width: 24px;
    height: 24px;
}

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

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
            rgba(15, 23, 42, 0.45) 0%,
            rgba(15, 23, 42, 0.65) 40%,
            rgba(15, 23, 42, 0.82) 70%,
            rgba(15, 23, 42, 0.94) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: calc(var(--navbar-height) + var(--space-3xl)) var(--space-lg) var(--space-3xl);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: var(--space-sm) var(--space-lg);
    border-radius: 100px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    margin-bottom: var(--space-xl);
}

.hero-badge i {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.8rem, 7vw, 5rem);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 8px;
    margin-bottom: var(--space-lg);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-tagline {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    color: var(--color-secondary);
    font-weight: 400;
    letter-spacing: 6px;
    margin-bottom: var(--space-md);
}

.hero-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 2px;
    margin-bottom: var(--space-2xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    margin-bottom: var(--space-3xl);
}

/* === Buttons === */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-cta);
    color: var(--color-white);
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 1px;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary:hover {
    background: var(--color-cta-hover);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(3, 105, 161, 0.35);
}

.btn-primary i {
    width: 18px;
    height: 18px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: transparent;
    color: var(--color-white);
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition);
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    color: var(--color-white);
}

.btn-secondary i {
    width: 16px;
    height: 16px;
}

/* === Hero Stats === */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-2xl);
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-gold);
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-gold);
    margin-left: 2px;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--space-xs);
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

/* Hero scroll indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.4);
    animation: bounce-down 2s infinite;
    z-index: 2;
}

.hero-scroll-indicator i {
    width: 28px;
    height: 28px;
}

@keyframes bounce-down {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* === Sections Common === */
.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

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

.section-label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    letter-spacing: 4px;
    color: var(--color-text-light);
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.section-header.light .section-label {
    color: rgba(255, 255, 255, 0.5);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 4px;
}

.section-header.light .section-title {
    color: var(--color-white);
}

.section-line {
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: var(--space-md) auto 0;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-top: var(--space-md);
}

/* === About Section === */
.about-section {
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.about-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(transparent, rgba(12, 60, 56, 0.85));
}

.about-image-label {
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
}

.about-content {
    padding: var(--space-lg) 0;
}

.about-subtitle {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
    letter-spacing: 2px;
}

.about-text {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.about-text strong {
    color: var(--color-primary);
    font-weight: 600;
}

.about-mission {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: var(--color-background);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
}

.about-mission>i {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.mission-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    margin-bottom: var(--space-xs);
}

.mission-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary-dark);
    line-height: 1.6;
}

/* === Advantages Section === */
.advantages-section {
    background: var(--color-background);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.advantage-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl) var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(30, 58, 95, 0.1);
}

.advantage-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(30, 58, 95, 0.06);
    position: absolute;
    top: 12px;
    right: 20px;
    line-height: 1;
}

.advantage-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    transition: transform 0.3s ease;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.05);
}

.advantage-icon i {
    width: 24px;
    height: 24px;
    color: var(--color-white);
}

.advantage-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.advantage-desc {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* The last two cards span full width on 3-col grid */
.advantages-grid .advantage-card:nth-child(4) {
    grid-column: 1 / 2;
}

.advantages-grid .advantage-card:nth-child(5) {
    grid-column: 2 / 4;
}

/* === Philosophy Section === */
.philosophy-section {
    background: var(--color-dark);
    position: relative;
    overflow: hidden;
}

.philosophy-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

.philosophy-quote {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
    position: relative;
}

.quote-icon {
    width: 40px;
    height: 40px;
    color: var(--color-gold);
    margin-bottom: var(--space-lg);
    opacity: 0.6;
}

.quote-text {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    line-height: 1.8;
    letter-spacing: 2px;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.philosophy-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateY(-3px);
}

.philosophy-card-icon {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
}

.philosophy-card-icon i {
    width: 22px;
    height: 22px;
    color: var(--color-secondary);
}

.philosophy-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-white);
    letter-spacing: 3px;
    margin-bottom: var(--space-md);
}

.philosophy-card p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

/* === Brands Section === */
.brands-section {
    background: var(--color-white);
    overflow: hidden;
}

.brands-marquee {
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.brands-track {
    display: flex;
    gap: var(--space-xl);
    animation: marquee 40s linear infinite;
    width: max-content;
}

.brand-item {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
    border: 1px solid rgba(30, 58, 95, 0.06);
    transition: all 0.3s ease;
    cursor: pointer;
}

.brand-item:hover {
    border-color: rgba(30, 58, 95, 0.15);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.brand-item img {
    max-width: 80px;
    max-height: 80px;
    object-fit: contain;
    filter: grayscale(0.3);
    transition: filter 0.3s ease;
}

.brand-item:hover img {
    filter: grayscale(0);
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    transition: all 0.3s ease;
    border: 1px solid transparent;
    cursor: pointer;
}

.contact-card:hover {
    border-color: rgba(30, 58, 95, 0.1);
    box-shadow: var(--shadow-md);
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-card-icon i {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

.contact-card-body h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.contact-phone {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
}

.contact-phone:hover {
    color: var(--color-cta);
}

.contact-phone i {
    width: 16px;
    height: 16px;
}

.contact-details {
    margin-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-detail-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.contact-detail-item i {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-detail-item a {
    color: var(--color-primary);
    cursor: pointer;
}

.contact-detail-item a:hover {
    color: var(--color-cta);
    text-decoration: underline;
}

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

.qr-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    display: inline-block;
}

.qr-card img {
    width: 220px;
    height: 220px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.qr-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 1px;
}

.qr-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

/* === Footer === */
.footer {
    background: var(--color-dark);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-white);
    letter-spacing: 3px;
}

.footer-slogan {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 2px;
    margin-top: var(--space-xs);
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
}

.footer-links a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: color var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-lg);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
}

.footer-icp a {
    color: rgba(255, 255, 255, 0.3);
    cursor: pointer;
}

.footer-icp a:hover {
    color: rgba(255, 255, 255, 0.6);
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 40;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.back-to-top i {
    width: 20px;
    height: 20px;
}

/* === Animations === */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.animate-fade-in-up {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.15s;
}

.delay-2 {
    animation-delay: 0.3s;
}

.delay-3 {
    animation-delay: 0.45s;
}

.delay-4 {
    animation-delay: 0.6s;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

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

/* Scroll reveal */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: var(--delay, 0s);
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-left {
    transform: translateX(-40px);
}

.reveal-right {
    transform: translateX(40px);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0);
}

/* === Responsive Styles === */

/* Tablet */
@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid .advantage-card:nth-child(5) {
        grid-column: 1 / 3;
    }

    .about-grid {
        gap: var(--space-xl);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .contact-qr {
        text-align: left;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --navbar-height: 60px;
    }

    .navbar {
        top: 8px;
        left: 8px;
        right: 8px;
        border-radius: var(--radius-md);
    }

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

    .navbar-nav {
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        padding: var(--space-md);
        gap: 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
    }

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

    .nav-link {
        display: block;
        padding: var(--space-md);
        text-align: center;
        border-radius: var(--radius-sm);
    }

    .nav-link:hover {
        background: var(--color-background);
    }

    .nav-link::after {
        display: none;
    }

    .navbar-toggle {
        display: block;
    }

    .hero-content {
        padding: calc(var(--navbar-height) + var(--space-2xl)) var(--space-md) var(--space-2xl);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
        padding: var(--space-lg);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

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

    .advantages-grid .advantage-card:nth-child(5) {
        grid-column: auto;
    }

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

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

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--space-lg);
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
    }

    .brand-item {
        width: 100px;
        height: 100px;
    }

    .brand-item img {
        max-width: 60px;
        max-height: 60px;
    }
}

/* Small Mobile */
@media (max-width: 375px) {
    .logo-subtitle {
        display: none;
    }

    .logo-divider {
        display: none;
    }

    .hero-title {
        letter-spacing: 4px;
    }

    .hero-tagline {
        letter-spacing: 3px;
    }
}