/* :root variables */
:root {
    --primary: #1e88e5;
    --secondary: #0277bd;
    --accent: #00bfa5;
    --light: #f5fbff;
    --dark: #0d47a1;
    --text: #333;
    --gray: #666;
    --light-gray: #f0f0f0;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: #fff;
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
a {
    text-decoration: none;
    color: var(--primary);
}
img {
    max-width: 100%;
    height: auto;
}

/* Header */
.header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.logo img {
    display: block;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}
.nav-links a {
    font-weight: 600;
    color: var(--text);
    transition: color 0.3s;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}
.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text);
    border-radius: 2px;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    text-align: center;
    padding: 100px 20px;
}
.hero h1 {
    font-size: 2.8rem;
    color: var(--dark);
    margin-bottom: 20px;
}
.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--gray);
}
.cta-button {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: bold;
    transition: background 0.3s;
}
.cta-button:hover {
    background: var(--secondary);
}

/* Sections */
.section {
    padding: 80px 0;
}
.section h2 {
    text-align: center;
    font-size: 2.2rem;
    color: var(--dark);
    margin-bottom: 50px;
}
.bg-light {
    background-color: var(--light);
}
.text-center {
    text-align: center;
}
.text-center strong {
    color: var(--primary);
}

/* Grid */
.grid {
    display: grid;
    gap: 30px;
}
.cards {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.stories-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
}

/* Cards */
.card, .story-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}
.card:hover, .story-card:hover {
    transform: translateY(-5px);
}
.card img, .story-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.card {
    padding: 25px;
}
.card .icon {
    font-size: 2.5rem;
    color: var(--primary);
    text-align: center;
    margin-bottom: 15px;
}
.card h3 {
    margin: 15px 0;
    color: var(--dark);
}
.btn {
    display: inline-block;
    margin-top: 15px;
    color: var(--primary);
    font-weight: bold;
    border: 2px solid var(--primary);
    padding: 8px 20px;
    border-radius: 20px;
    transition: all 0.3s;
}
.btn:hover {
    background: var(--primary);
    color: white;
}

.story-card {
    padding: 20px;
}
.story-card h3 {
    margin: 15px 0;
    color: var(--dark);
}

/* Contact */
.contact-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
}
.contact-info p {
    margin: 12px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 30px 0;
}
.footer p {
    margin-bottom: 15px;
}
.footer-links a {
    color: #ccc;
    margin: 0 10px;
    transition: color 0.3s;
}
.footer-links a:hover {
    color: white;
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: start;
}
.about-text h2 {
    margin: 30px 0 15px;
    color: var(--dark);
}
.about-text ul {
    padding-left: 20px;
    margin: 15px 0;
}
.about-text li {
    margin-bottom: 10px;
}
.about-image img {
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        display: none;
    }
    .nav-links.active {
        display: flex !important;
    }
    .hamburger {
        display: flex;
    }
    .hero h1 {
        font-size: 2.2rem;
    }
    .about-content {
        grid-template-columns: 1fr;
    }
    .stories-grid {
        grid-template-columns: 1fr;
    }
}