/* 
 * Beijing Jiujiujia Property Management Co., Ltd.
 * Corporate Website - Audi Style Design
 * Version: 1.0.0
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Primary Colors */
    --primary-black: #0a0a0a;
    --primary-dark: #1a1a1a;
    --primary-gray: #2d2d2d;
    --primary-light: #f5f5f5;
    --primary-white: #ffffff;
    
    /* Accent Colors */
    --accent-red: #e63946;
    --accent-blue: #0077cc;
    --accent-gold: #c9a962;
    
    /* Gradients */
    --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    --gradient-red: linear-gradient(135deg, #e63946 0%, #ff6b6b 100%);
    --gradient-blue: linear-gradient(135deg, #0077cc 0%, #00a3ff 100%);
    --gradient-gold: linear-gradient(135deg, #c9a962 0%, #e6c76a 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-display: 'Segoe UI Light', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;
    --font-size-hero: 5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.3);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-tooltip: 1050;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--primary-gray);
    background-color: var(--primary-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
}

/* ==================== Utility Classes ==================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.section-dark {
    background-color: var(--primary-dark);
    color: var(--primary-white);
}

.section-light {
    background-color: var(--primary-light);
}

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

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

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

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--primary-black);
}

h1 {
    font-size: var(--font-size-hero);
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--font-size-3xl);
    letter-spacing: -0.01em;
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-red);
    transform: translateX(50%);
}

.section-title.center::after {
    left: 50%;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--primary-gray);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

p {
    margin-bottom: var(--spacing-sm);
}

/* ==================== Header & Navigation ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: var(--shadow-lg);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-white);
    font-size: var(--font-size-xl);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.logo svg {
    width: 50px;
    height: 50px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text span:first-child {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.logo-text span:last-child {
    font-size: var(--font-size-xs);
    font-weight: 300;
    opacity: 0.7;
}

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

.nav-link {
    color: var(--primary-white);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    letter-spacing: 0.02em;
    transition: var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

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

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

.nav-cta {
    background: var(--gradient-red);
    color: var(--primary-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--primary-white);
    transition: var(--transition-normal);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    z-index: var(--z-modal);
    padding: var(--spacing-xl) var(--spacing-md);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    color: var(--primary-white);
    font-size: var(--font-size-3xl);
}

.mobile-nav-link {
    color: var(--primary-white);
    font-size: var(--font-size-2xl);
    font-weight: 300;
    transition: var(--transition-normal);
}

.mobile-nav-link:hover {
    color: var(--accent-red);
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,') center/cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(230, 57, 70, 0.6);
    border-radius: 50%;
    animation: particleFloat 15s infinite ease-in-out;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--primary-white);
    padding: 0 var(--spacing-md);
    max-width: 1200px;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 300;
    margin-bottom: var(--spacing-md);
    animation: heroFadeIn 1.5s ease-out;
    letter-spacing: -0.03em;
}

.hero-title span {
    display: block;
    font-weight: 600;
    background: var(--gradient-red);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    font-weight: 300;
    animation: heroFadeIn 1.5s ease-out 0.3s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    animation: heroFadeIn 1.5s ease-out 0.6s backwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-red);
    color: var(--primary-white);
    box-shadow: var(--shadow-lg);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-white);
    border: 2px solid var(--primary-white);
}

.btn-secondary:hover {
    background: var(--primary-white);
    color: var(--primary-black);
    transform: translateY(-3px);
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

.hero-scroll svg {
    width: 30px;
    height: 30px;
}

/* ==================== Features Section ==================== */
.features {
    background: var(--primary-white);
}

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

.feature-card {
    background: var(--primary-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-red);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-red);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary-white);
}

.feature-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-black);
}

.feature-description {
    color: var(--primary-gray);
    line-height: 1.8;
}

/* ==================== App Showcase ==================== */
.app-showcase {
    background: var(--gradient-dark);
    color: var(--primary-white);
    position: relative;
}

.app-showcase-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.app-showcase-text h2 {
    color: var(--primary-white);
}

.app-showcase-text h2::after {
    background: var(--accent-red);
}

.app-features-list {
    margin-top: var(--spacing-lg);
}

.app-feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    border-left: 3px solid transparent;
}

.app-feature-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: var(--accent-red);
    transform: translateX(10px);
}

.app-feature-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-red);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.app-feature-icon svg {
    width: 25px;
    height: 25px;
    color: var(--primary-white);
}

.app-feature-content h4 {
    color: var(--primary-white);
    margin-bottom: var(--spacing-xs);
}

.app-feature-content p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.app-showcase-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: var(--primary-black);
    border-radius: 40px;
    padding: 10px;
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-gray) 100%);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.phone-header {
    padding: 60px 20px 20px;
    text-align: center;
}

.phone-header h3 {
    color: var(--primary-white);
    font-size: var(--font-size-lg);
}

.phone-content {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.phone-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: var(--radius-md);
}

.phone-card-title {
    color: var(--primary-white);
    font-size: var(--font-size-sm);
    margin-bottom: 5px;
}

.phone-card-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-xs);
}

.app-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.app-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--primary-white);
    font-size: var(--font-size-sm);
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-badge:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.app-badge svg {
    width: 20px;
    height: 20px;
}

/* ==================== Stats Section ==================== */
.stats {
    background: var(--gradient-red);
    color: var(--primary-white);
    padding: var(--spacing-xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    display: block;
    font-family: var(--font-display);
}

.stat-label {
    font-size: var(--font-size-base);
    opacity: 0.9;
    font-weight: 400;
}

/* ==================== Services Grid ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--primary-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    position: relative;
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.service-image {
    height: 200px;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.service-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.5));
}

.service-icon-large {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(230, 57, 70, 0.9);
    border-radius: 50%;
    z-index: 10;
    box-shadow: var(--shadow-lg);
}

.service-icon-large svg {
    width: 50px;
    height: 50px;
    color: var(--primary-white);
}

.service-content {
    padding: var(--spacing-lg);
}

.service-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-black);
}

.service-description {
    color: var(--primary-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-red);
    font-weight: 600;
    transition: var(--transition-normal);
}

.service-link:hover {
    gap: var(--spacing-sm);
}

/* ==================== About Section ==================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text h2::after {
    background: var(--accent-red);
}

.about-features {
    margin-top: var(--spacing-lg);
}

.about-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--primary-light);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.about-feature:hover {
    background: var(--primary-white);
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.about-feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-red);
    border-radius: 50%;
    flex-shrink: 0;
}

.about-feature-icon svg {
    width: 30px;
    height: 30px;
    color: var(--primary-white);
}

.about-image {
    position: relative;
}

.about-image-box {
    background: var(--gradient-dark);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    color: var(--primary-white);
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.about-image-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--accent-red) 0%, transparent 70%);
    opacity: 0.3;
}

/* ==================== Culture Section ==================== */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.culture-card {
    background: var(--primary-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.culture-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-red);
    opacity: 0;
    transition: var(--transition-smooth);
}

.culture-card:hover::before {
    opacity: 0.05;
}

.culture-card:hover {
    transform: translateY(-10px);
}

.culture-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-red);
    border-radius: 50%;
    position: relative;
    z-index: 10;
    box-shadow: var(--shadow-lg);
}

.culture-icon svg {
    width: 50px;
    height: 50px;
    color: var(--primary-white);
}

.culture-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 10;
}

.culture-description {
    color: var(--primary-gray);
    line-height: 1.8;
    position: relative;
    z-index: 10;
}

/* ==================== Timeline ==================== */
.timeline {
    position: relative;
    max-width: 1200px;
    margin: var(--spacing-xl) auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: var(--accent-red);
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    padding: var(--spacing-lg);
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: var(--spacing-xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: var(--spacing-xl);
}

.timeline-content {
    background: var(--primary-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: var(--transition-smooth);
}

.timeline-content:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -10px;
    transform: translateY(-50%);
    border: 10px solid transparent;
    border-left-color: var(--primary-white);
}

.timeline-item:nth-child(even) .timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -10px;
    transform: translateY(-50%);
    border: 10px solid transparent;
    border-right-color: var(--primary-white);
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-red);
    border-radius: 50%;
    top: var(--spacing-lg);
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -10px;
    transform: translateX(50%);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
    transform: translateX(-50%);
}

.timeline-year {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--accent-red);
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    color: var(--primary-gray);
    line-height: 1.8;
}

/* ==================== News Section ==================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.news-card {
    background: var(--primary-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.news-image {
    height: 250px;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.news-date {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--gradient-red);
    color: var(--primary-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.news-content {
    padding: var(--spacing-lg);
}

.news-category {
    display: inline-block;
    background: var(--primary-light);
    color: var(--accent-red);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.news-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-black);
    line-height: 1.4;
    transition: var(--transition-normal);
}

.news-card:hover .news-title {
    color: var(--accent-red);
}

.news-excerpt {
    color: var(--primary-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-red);
    font-weight: 600;
    transition: var(--transition-normal);
}

.news-link:hover {
    gap: var(--spacing-sm);
}

/* ==================== Contact Section ==================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.contact-info {
    background: var(--gradient-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    color: var(--primary-white);
}

.contact-info h3 {
    color: var(--primary-white);
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(10px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-red);
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 25px;
    height: 25px;
    color: var(--primary-white);
}

.contact-text h4 {
    color: var(--primary-white);
    margin-bottom: var(--spacing-xs);
}

.contact-text p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

.contact-form {
    background: var(--primary-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--primary-black);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition-normal);
    background: var(--primary-white);
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--accent-red);
    box-shadow: var(--shadow-md);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-button {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--gradient-red);
    color: var(--primary-white);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.form-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ==================== Footer ==================== */
.footer {
    background: var(--primary-black);
    color: var(--primary-white);
    padding-top: var(--spacing-xl);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 400px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition-normal);
}

.social-link:hover {
    background: var(--accent-red);
    transform: translateY(-5px);
}

.social-link svg {
    width: 20px;
    height: 20px;
    color: var(--primary-white);
}

.footer-column h4 {
    color: var(--primary-white);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-normal);
    font-size: var(--font-size-sm);
}

.footer-link:hover {
    color: var(--accent-red);
    padding-left: 10px;
}

.footer-bottom {
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    transition: var(--transition-normal);
}

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

/* ==================== Page Headers ==================== */
.page-header {
    background: var(--gradient-dark);
    color: var(--primary-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, var(--accent-red) 0%, transparent 50%);
    opacity: 0.3;
}

.page-header h1 {
    color: var(--primary-white);
    position: relative;
    z-index: 10;
}

.page-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-lg);
    position: relative;
    z-index: 10;
    margin-top: var(--spacing-sm);
}

/* ==================== Legal Pages ==================== */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.legal-section {
    margin-bottom: var(--spacing-xl);
    background: var(--primary-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.legal-section h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-black);
    border-bottom: 2px solid var(--accent-red);
    padding-bottom: var(--spacing-sm);
}

.legal-section h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--primary-black);
}

.legal-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    color: var(--primary-gray);
}

.legal-section ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.legal-section li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
    color: var(--primary-gray);
    position: relative;
}

.legal-section li::before {
    content: '•';
    color: var(--accent-red);
    font-weight: bold;
    position: absolute;
    left: -20px;
}

/* ==================== Animation Classes ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1200px) {
    h1 {
        font-size: var(--font-size-3xl);
    }
    
    h2 {
        font-size: var(--font-size-2xl);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content,
    .contact-content,
    .app-showcase-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .features-grid,
    .services-grid,
    .news-grid,
    .culture-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        left: 0;
        text-align: left;
    }
    
    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 21px;
        right: auto;
        transform: translateX(-50%);
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -10px;
        right: auto;
        border: 10px solid transparent;
        border-right-color: var(--primary-white);
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .app-badges {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: var(--font-size-xl);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .legal-section {
        padding: var(--spacing-md);
    }
}

/* ==================== Print Styles ==================== */
@media print {
    .header,
    .footer,
    .hero-scroll,
    .mobile-nav {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
}

/* ==================== Accessibility ==================== */
@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;
    }
}

/* Focus styles */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--accent-red);
    outline-offset: 2px;
}

/* Screen reader only */
.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;
}