/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: #f4f7fa;
    color: #222;
    min-height: 100vh;
    line-height: 1.7;
}
a { color: #2563eb; text-decoration: none; transition: color 0.2s; }
a:hover { color: #1e40af; }

/* Header & Navigation */
.header {
    background: #1e3c72;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(30,60,114,0.08);
}
.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 2rem;
}
.logo {
    font-size: 2rem;
    font-weight: bold;
    letter-spacing: 1px;
    color: #fff;
}
.contact-info {
    text-align: right;
    font-size: 1rem;
    opacity: 0.92;
}
.contact-info p { margin: 0.1rem 0; }

.nav {
    background: #fff;
    box-shadow: 0 2px 8px rgba(30,60,114,0.04);
    border-bottom: 1px solid #e5e7eb;
}
.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    padding: 0.7rem 2rem;
}
.nav a {
    color: #1e3c72;
    font-weight: 500;
    font-size: 1.08rem;
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
}
.nav a:hover, .nav a.active {
    background: #2563eb;
    color: #fff;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(30,60,114,0.5), rgba(42,82,152,0.5)), url('https://images.unsplash.com/photo-1523050854058-8df90110c9e1?auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    background-position: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    border-radius: 0 0 32px 32px;
    box-shadow: 0 8px 32px rgba(30,60,114,0.08);
}
.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 8px rgba(30,60,114,0.18);
}
.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 4px rgba(30,60,114,0.18);
}
.cta-button {
    display: inline-block;
    background: #e74c3c;
    color: #fff;
    padding: 1rem 2.2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 2px 8px rgba(231,76,60,0.08);
    transition: background 0.2s;
}
.cta-button:hover { background: #c0392b; }

/* Main Content & Cards */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3.5rem 2rem 2rem 2rem;
}
.section {
    margin-bottom: 3rem;
}
.section h2 {
    font-size: 2.1rem;
    color: #1e3c72;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 600;
}
.features, .program-list, .life-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.feature, .program, .life-item {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(30,60,114,0.07);
    padding: 2rem 1.2rem;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}
.feature:hover, .program:hover, .life-item:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 24px rgba(30,60,114,0.13);
}
.feature img, .life-item img {
    width: 72px;
    height: 72px;
    margin-bottom: 1rem;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(30,60,114,0.08);
}
.feature h3, .program h3, .life-item h3 {
    color: #2563eb;
    margin-bottom: 0.7rem;
    font-size: 1.25rem;
}

/* Stats Section */
.stats {
    background: linear-gradient(90deg, #1e3c72 60%, #2563eb 100%);
    color: #fff;
    padding: 3rem 0;
    border-radius: 18px;
    margin: 3rem 0;
    box-shadow: 0 2px 12px rgba(30,60,114,0.09);
}
.stats-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    text-align: center;
}
.stat h3 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

/* 表单样式 */
.contact-form {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(30,60,114,0.07);
    max-width: 500px;
    margin: 0 auto;
}
.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: #1e3c72;
    font-weight: 500;
}
.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 0.7rem;
    margin-bottom: 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 1rem;
    background: #f4f7fa;
    transition: border 0.2s;
}
.contact-form input:focus, .contact-form textarea:focus {
    border: 1.5px solid #2563eb;
    outline: none;
}
.contact-form button {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.2s;
}
.contact-form button:hover { background: #1e3c72; }

/* Footer */
.footer {
    background: #1e3c72;
    color: #fff;
    padding: 2.5rem 0 1rem;
    border-radius: 24px 24px 0 0;
    margin-top: 4rem;
    box-shadow: 0 -2px 12px rgba(30,60,114,0.07);
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}
.footer-section h3 {
    margin-bottom: 1rem;
    color: #60a5fa;
    font-size: 1.1rem;
    font-weight: 600;
}
.footer-section p, .footer-section a {
    color: #dbeafe;
    text-decoration: none;
    line-height: 1.8;
    font-size: 0.98rem;
}
.footer-section a:hover { color: #fff; }
.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #2563eb;
    font-size: 0.95rem;
    color: #dbeafe;
}

/* 响应式 */
@media (max-width: 900px) {
    .main-content { padding: 2rem 1rem; }
    .header-content, .nav-content, .footer-content { padding-left: 1rem; padding-right: 1rem; }
}
@media (max-width: 600px) {
    .header-content, .nav-content, .footer-content { flex-direction: column; gap: 1rem; }
    .main-content { padding: 1rem 0.2rem; }
    .hero-content h1 { font-size: 2rem; }
    .section h2 { font-size: 1.3rem; }
    .footer { padding: 1.2rem 0 0.5rem; }
}