/* ============================================
   Beijing Hongchangyuan Travel Service Co., Ltd.
   Main Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    --primary-color: #0a1628;
    --secondary-color: #1a2a4a;
    --accent-color: #e63946;
    --accent-hover: #c1121f;
    --text-primary: #ffffff;
    --text-secondary: #a8b2d1;
    --text-light: #ccd6f6;
    --gradient-start: #0a1628;
    --gradient-end: #1a2a4a;
    --card-bg: rgba(26, 42, 74, 0.5);
    --border-color: rgba(230, 57, 70, 0.3);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-text span {
    display: block;
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    position: relative;
    color: var(--text-light);
    font-weight: 500;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

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

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

.nav-cta {
    background: var(--accent-color);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(230, 57, 70, 0.4);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 30px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(10, 22, 40, 0.98);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav.active {
    display: block;
    animation: slideDown 0.3s ease;
}

.mobile-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-link {
    display: block;
    color: var(--text-light);
    padding: 1rem;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-nav-link:hover {
    background: var(--card-bg);
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(230, 57, 70, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(26, 42, 74, 0.8) 0%, transparent 50%),
        linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 15s infinite ease-in-out;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease;
}

.hero-badge svg {
    width: 20px;
    height: 20px;
    fill: var(--accent-color);
}

.hero-badge span {
    font-size: 0.9rem;
    color: var(--text-light);
}

.hero h1 {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ff6b6b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: var(--text-primary);
    box-shadow: 0 10px 30px rgba(230, 57, 70, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(230, 57, 70, 0.5);
}

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

.btn-secondary:hover {
    background: var(--card-bg);
    border-color: var(--accent-color);
    transform: translateY(-3px);
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
    fill: var(--accent-color);
}

/* Sections */
section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--accent-color);
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-secondary);
}

/* Features Section */
.features {
    background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

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

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: rotateY(180deg);
}

.feature-icon svg {
    width: 35px;
    height: 35px;
    fill: var(--text-primary);
}

.feature-card h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Services Section */
.services {
    background: var(--secondary-color);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 30% 70%, rgba(230, 57, 70, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: rgba(10, 22, 40, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.service-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 700;
    color: var(--border-color);
    line-height: 1;
    transition: var(--transition);
}

.service-card:hover .service-number {
    color: var(--accent-color);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--card-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--accent-color);
}

.service-card h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* App Section */
.app-section {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    position: relative;
    overflow: hidden;
}

.app-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.app-info h2 {
    margin-bottom: 1.5rem;
}

.app-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.app-features {
    list-style: none;
    margin-bottom: 2rem;
}

.app-features li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.app-features svg {
    width: 24px;
    height: 24px;
    fill: var(--accent-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.app-download {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.store-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    transition: var(--transition);
}

.store-badge:hover {
    border-color: var(--accent-color);
    transform: translateY(-3px);
}

.store-badge svg {
    width: 30px;
    height: 30px;
}

.store-badge-info {
    text-align: left;
}

.store-badge-info span {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.store-badge-info strong {
    font-size: 0.9rem;
    color: var(--text-primary);
}

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

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 40px;
    padding: 10px;
    box-shadow: 
        0 50px 100px rgba(0, 0, 0, 0.4),
        inset 0 0 0 2px rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-color) 0%, var(--secondary-color) 30%);
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.phone-screen svg {
    width: 80px;
    height: 80px;
    fill: var(--text-primary);
    margin-bottom: 1rem;
}

.phone-screen span {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-icon {
    position: absolute;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    animation: floatIcon 6s infinite ease-in-out;
}

.float-icon:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.float-icon:nth-child(2) {
    top: 20%;
    right: 5%;
    animation-delay: 1s;
}

.float-icon:nth-child(3) {
    bottom: 20%;
    left: 5%;
    animation-delay: 2s;
}

.float-icon:nth-child(4) {
    bottom: 10%;
    right: 10%;
    animation-delay: 3s;
}

.float-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--accent-color);
}

/* Stats Section */
.stats {
    background: var(--secondary-color);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* About/Culture Section */
.about {
    background: linear-gradient(180deg, var(--gradient-end) 0%, var(--gradient-start) 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img-container {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--secondary-color) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    overflow: hidden;
    position: relative;
}

.about-img-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--accent-color), transparent);
    animation: rotate 10s linear infinite;
    opacity: 0.3;
}

.about-img-container svg {
    width: 120px;
    height: 120px;
    fill: var(--accent-color);
    position: relative;
    z-index: 1;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.values-list {
    list-style: none;
    margin-top: 2rem;
}

.values-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.value-icon {
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.value-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--accent-color);
}

.value-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.value-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* News Section */
.news {
    background: var(--secondary-color);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-card {
    background: rgba(10, 22, 40, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.news-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
}

.news-image svg {
    width: 60px;
    height: 60px;
    fill: var(--text-primary);
    position: relative;
    z-index: 1;
}

.news-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent-color);
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 2;
}

.news-content {
    padding: 1.5rem;
}

.news-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.news-card h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.news-card:hover h4 {
    color: var(--accent-color);
}

.news-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--accent-color);
}

.news-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    transition: var(--transition);
}

.news-card:hover .news-link svg {
    transform: translateX(5px);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-details {
    list-style: none;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--accent-color);
}

.contact-text h4 {
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.contact-text p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(10, 22, 40, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
}

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

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

.contact-form .btn {
    width: 100%;
    justify-content: center;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    padding: 80px 0;
    text-align: center;
}

.cta h2 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.cta .btn {
    background: var(--text-primary);
    color: var(--accent-color);
}

.cta .btn:hover {
    background: var(--gradient-start);
    color: var(--text-primary);
}

/* Footer */
.footer {
    background: var(--gradient-start);
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

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

.footer-column h4 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-secondary);
    margin-bottom: 0;
    font-size: 0.9rem;
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* Page Header */
.page-header {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 50% 100%, rgba(230, 57, 70, 0.2) 0%, transparent 60%);
}

.page-header h1 {
    position: relative;
    z-index: 1;
    margin-bottom: 1rem;
}

.page-header p {
    position: relative;
    z-index: 1;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    position: relative;
    z-index: 1;
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb span {
    color: var(--accent-color);
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.6;
    }
    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-200px) translateX(-30px);
        opacity: 0.6;
    }
    75% {
        transform: translateY(-100px) translateX(-50px);
        opacity: 0.3;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-7px);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-accent { color: var(--accent-color); }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 2rem; }

/* Responsive */
@media (max-width: 1024px) {
    .app-content,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .app-visual {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    section {
        padding: 60px 0;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .features-grid,
    .services-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .feature-card,
    .service-card {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}