:root {
    --primary-color: #1a73e8;
    --secondary-color: #5f6368;
    --bg-color: #ffffff;
    --text-color: #202124;
    --light-bg: #f8f9fa;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

header {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: bold;
}

.chrome-icon {
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, #4285f4, #34a853, #fbbc05, #ea4335);
    border-radius: 50%;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

.hero {
    padding: 100px 0;
    text-align: center;
    background: linear-gradient(to bottom, #f0f4f8, #fff);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #111;
}

.hero p {
    font-size: 20px;
    color: var(--secondary-color);
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 12px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background-color: #1557b0;
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
}

.btn-secondary {
    background-color: #fff;
    color: var(--primary-color);
    border: 1px solid #dadce0;
    margin-left: 15px;
}

.btn-secondary:hover {
    background-color: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.feature-card {
    padding: 30px;
    background: var(--light-bg);
    border-radius: 15px;
    text-align: center;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: #111;
}

.download-section {
    background: #f1f3f4;
    padding: 80px 0;
}

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

.download-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.download-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.download-card p {
    color: var(--secondary-color);
    margin-bottom: 25px;
}

.recent-articles {
    padding: 80px 0;
}

.articles-list {
    max-width: 800px;
    margin: 0 auto 40px;
}

.article-item {
    display: flex;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.article-item a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
}

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

.article-item span {
    color: #999;
    font-size: 14px;
}

.link-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

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

footer {
    background: #202124;
    color: #fff;
    padding: 50px 0;
    text-align: center;
}

footer p {
    margin-bottom: 10px;
    color: #bdc1c6;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    nav ul { display: none; }
    .btn-secondary { margin-left: 0; margin-top: 15px; }
}