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

:root {
    --primary-color: #D33F30;
    --primary-dark: #B83528;
    --secondary-color: #2c3e50;
    --accent-color: #3498db;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #95a5a6;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: white;
    color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
}

.logo-icon-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.footer-logo {
    width: 35px;
    height: 35px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.nav-buttons {
    display: flex;
    gap: 15px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
    position: relative;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-features {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    opacity: 0.9;
}

.feature-icon {
    font-size: 18px;
}

.feature-icon-img {
    width: 24px !important;
    height: 24px !important;
    object-fit: contain;
    max-width: 24px !important;
    max-height: 24px !important;
    display: inline-block;
}

.feature-item img {
    width: 24px !important;
    height: 24px !important;
    max-width: 24px !important;
    max-height: 24px !important;
}

.hero-features img {
    width: 24px !important;
    height: 24px !important;
    max-width: 24px !important;
    max-height: 24px !important;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-buttons .btn-primary {
    background-color: white;
    color: var(--primary-color);
    font-weight: 700;
}

.hero-buttons .btn-primary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
}

.hero-image .carousel-wrapper {
    max-width: 320px;
    width: 100%;
    border-radius: 12px;
    background-color: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0;
    position: relative;
}

.hero-image .carousel-track {
    width: 100%;
    position: relative;
    height: 380px;
    overflow: hidden;
}

.hero-image .carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    z-index: 1;
}

.hero-image .carousel-slide.active {
    opacity: 1;
    z-index: 2;
    animation: none;
}

.hero-image .carousel-slide.slide-in-right {
    opacity: 1;
    z-index: 3;
    animation: slideInFromRight 0.5s ease forwards;
}

.hero-image .carousel-slide.slide-in-left {
    opacity: 1;
    z-index: 3;
    animation: slideInFromLeft 0.5s ease forwards;
}

.hero-image .carousel-slide.slide-out-left {
    opacity: 1;
    z-index: 2;
    animation: slideOutToLeft 0.5s ease forwards;
}

.hero-image .carousel-slide.slide-out-right {
    opacity: 1;
    z-index: 2;
    animation: slideOutToRight 0.5s ease forwards;
}

@keyframes slideInFromRight {
    0% {
        opacity: 1;
        transform: translateX(20%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutToLeft {
    0% {
        opacity: 1;
        transform: translateX(0);
    }
    100% {
        opacity: 1;
        transform: translateX(-20%);
    }
}

@keyframes slideInFromLeft {
    0% {
        opacity: 1;
        transform: translateX(-20%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutToRight {
    0% {
        opacity: 1;
        transform: translateX(0);
    }
    100% {
        opacity: 1;
        transform: translateX(20%);
    }
}

.hero-image .carousel-slide img {
    max-width: 100%;
    max-height: 380px;
    width: auto;
    height: auto;
    display: block;
}

.hero-image .carousel-controls {
    display: flex;
    pointer-events: none;
    position: absolute;
    top: 50%;
    left: -15px;
    right: -15px;
    transform: translateY(-50%);
    justify-content: space-between;
    z-index: 10;
}

.hero-image .carousel-btn {
    width: auto;
    height: auto;
    padding: 0 5px;
    border: none;
    border-radius: 0;
    background: transparent;
    color: rgba(255, 255, 255, 0.8);
    font-size: 32px;
    font-weight: 300;
    line-height: 1;
    box-shadow: none;
    pointer-events: auto;
}

.hero-image .carousel-btn:hover {
    background: transparent;
    transform: none;
    box-shadow: none;
    color: #2980b9;
}

.hero-image .carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 12px;
    flex-shrink: 0;
}

.hero-image .indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(0, 0, 0, 0.1);
}

.hero-image .indicator:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

.hero-image .indicator.active {
    background-color: white;
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.2);
}

@keyframes slideInFromRight {
    0% {
        opacity: 0;
        transform: translateX(100%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutToLeft {
    0% {
        opacity: 1;
        transform: translateX(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-100%);
    }
}

@keyframes slideInFromLeft {
    0% {
        opacity: 0;
        transform: translateX(-100%);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutToRight {
    0% {
        opacity: 1;
        transform: translateX(0);
    }
    100% {
        opacity: 0;
        transform: translateX(100%);
    }
}

.carousel-track {
    width: 100%;
}

.carousel-slide {
    min-width: 100%;
}

.history-data {
    background-color: var(--bg-secondary);
    padding: 80px 0;
}

.history-data-content {
    background-color: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.data-status {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 0 5px;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    color: #e74c3c;
    font-weight: 500;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    margin-right: 6px;
    animation: pulse 2s infinite;
}

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

.status-indicator.connected {
    color: #27ae60;
}

.update-time {
    font-size: 13px;
    color: var(--text-muted);
}

.data-status .date-display {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    margin-left: 15px;
}

.data-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    padding: 10px 24px;
    background-color: transparent;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--primary-color);
    background-color: rgba(211, 63, 48, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    background-color: rgba(211, 63, 48, 0.1);
}

.table-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    padding-left: 20px;
}

.sub-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    padding-left: 20px;
}

.sub-tab-btn {
    padding: 6px 16px;
    background-color: rgba(0, 0, 0, 0.05);
    border: none;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.sub-tab-btn:hover {
    background-color: rgba(211, 63, 48, 0.1);
    color: var(--primary-color);
}

.sub-tab-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.date-display {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.date-label {
    color: var(--text-secondary);
    font-size: 16px;
}

.date-value {
    font-weight: 600;
    color: var(--primary-color);
}

.date-select {
    padding: 8px 40px 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-primary);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10'%3E%3Cpath d='M1 1l6 7 6-7' stroke='%23d33f30' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px 10px;
}

.date-select option {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
}

.date-select:hover {
    border-color: var(--primary-color);
}

.date-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(211, 63, 48, 0.1);
}

.data-table-wrapper {
    background-color: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: none;
}

.data-table-wrapper.active {
    display: block;
}

.table-container {
    max-height: 560px;
    overflow-y: auto;
}

.data-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

.table-container::-webkit-scrollbar {
    width: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background-color: var(--primary-color);
}

.data-table th {
    padding: 15px 20px;
    text-align: left;
    color: white;
    font-weight: 500;
    font-size: 14px;
}

.data-table .stock-code {
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 16px;
}

.data-table .signal-type-buy {
    color: #e74c3c;
    font-weight: 600;
}

.data-table .signal-type-sell {
    color: #27ae60;
    font-weight: 600;
}

.data-table .signal-type-monitor {
    color: #f39c12;
    font-weight: 600;
}

.data-table td {
    padding: 14px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
}

.data-table tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.empty-row td {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 20px;
}

.data-note {
    margin-top: 15px;
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

.mockup {
    background-color: #1a1a2e;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
}

.mockup-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background-color: #252542;
}

.mockup-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background-color: #ff5f56;
}

.dot.yellow {
    background-color: #ffbd2e;
}

.dot.green {
    background-color: #27ca40;
}

.mockup-title {
    font-size: 12px;
    color: #888;
}

.mockup-content {
    padding: 20px;
}

.stock-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background-color: #252542;
    border-radius: 8px;
    margin-bottom: 12px;
}

.stock-card:last-child {
    margin-bottom: 0;
}

.stock-name {
    font-size: 14px;
    font-weight: 500;
}

.stock-price {
    font-size: 14px;
    font-weight: 600;
    color: #4ecdc4;
}

.features {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon-box {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(211, 63, 48, 0.1);
    border-radius: 12px;
    font-size: 28px;
    margin-bottom: 20px;
}

.feature-card-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.scenarios {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.scenario-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.scenario-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.scenario-icon-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.scenario-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.scenario-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.versions {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.versions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.version-card {
    background-color: var(--bg-light);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 520px;
}

.version-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.version-card.popular {
    background-color: var(--primary-color);
    color: white;
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #ffbd2e;
    color: var(--text-primary);
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.version-header {
    margin-bottom: 15px;
    min-height: 100px;
}

.version-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 10px 0;
    display: block;
}

.version-price {
    font-size: 28px;
    font-weight: 700;
    position: relative;
    margin: 0 0 15px 0;
    line-height: 1;
    display: block;
}

.price-note {
    font-size: 14px;
    vertical-align: super;
    margin-left: 2px;
}

.version-note {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
    padding: 0;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    display: block;
}

.version-note-asterisk {
    color: var(--primary-color);
    margin-right: 3px;
}

.version-card.popular .version-note {
    color: rgba(255,255,255,0.8);
}

.version-card.popular .version-note-asterisk {
    color: #ffbd2e;
}

.version-card.popular .version-price {
    color: white;
}

.version-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.version-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.version-card.popular .version-features li {
    border-bottom-color: rgba(255,255,255,0.1);
}

.version-features li:last-child {
    border-bottom: none;
}

.check::before {
    content: '✓';
    color: #27ca40;
    font-weight: 600;
}

.cross::before {
    content: '✗';
    color: #ff5f56;
    font-weight: 600;
}

.version-card.popular .check::before {
    color: #a8ff9a;
}

.version-card.popular .cross::before {
    color: #ff887c;
}

.version-card .btn {
    width: 100%;
}

.version-card.popular .btn-primary {
    background-color: white;
    color: var(--primary-color);
}

.version-card.popular .btn-primary:hover {
    background-color: #f0f0f0;
}

.download {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a2e 100%);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.download-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.download-icon {
    margin-right: 10px;
}

.download-note {
    font-size: 14px;
    opacity: 0.7;
    margin-top: 15px;
}

.faq {
    padding: 80px 0;
    background-color: var(--bg-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: rgba(0,0,0,0.02);
}

.faq-question h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.faq-toggle {
    font-size: 24px;
    font-weight: 300;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 20px 20px;
}

.faq-answer p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.contact {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.contact-card {
    background-color: var(--bg-white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-icon-img {
    width: 50%;
    height: auto;
    max-width: 120px;
}

.contact-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.contact-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-text {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-section p {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-brand {
    margin-bottom: 15px;
}

.footer-brand-img {
    width: 80%;
    height: auto;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 14px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-buttons {
        display: none;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .versions-grid,
    .contact-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .download-content h2 {
        font-size: 28px;
    }
}