:root {
    --primary: #375b3f;
    --primary-dark: #243b2b;
    --accent: #e2b865;
    --accent-soft: #f6ebc8;
    --text: #27332a;
    --muted: #6d7a6a;
    --bg: #f6f2e8;
    --surface: #ffffff;
    --border: #e6e0cf;
    --shadow: 0 18px 45px rgba(35, 59, 43, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 5%;
    background: rgba(36, 59, 43, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: white;
    font-weight: 700;
    font-size: 1.05rem;
}
.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), #f1d18d);
    color: var(--primary-dark);
}
.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.nav-links a {
    color: rgba(255,255,255,0.92);
    font-weight: 500;
    padding: 0.45rem 0.65rem;
    border-radius: 8px;
    transition: all 0.25s ease;
}
.nav-links a:hover {
    background: rgba(255,255,255,0.14);
    color: white;
}

.hero {
    min-height: 100vh;
    padding: 140px 5% 90px;
    display: flex;
    align-items: center;
    background: linear-gradient(120deg, rgba(36, 59, 43, 0.88), rgba(36, 59, 43, 0.72)),
                url('https://images.unsplash.com/photo-1500382017468-9049fed747ef?auto=format&fit=crop&w=1800&q=80') center/cover;
    color: white;
}
.hero-content {
    max-width: 860px;
}
.hero-badge {
    display: inline-block;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.24);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}
.hero h1 {
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.2;
    margin: 0 0 1rem;
}
.hero p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.92);
    max-width: 720px;
}
.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1.75rem 0;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.9rem 1.4rem;
    border-radius: 999px;
    font-weight: 700;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn:hover {
    transform: translateY(-3px);
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), #f0d38f);
    color: var(--primary-dark);
    box-shadow: 0 10px 24px rgba(226, 184, 101, 0.24);
}
.btn-secondary {
    background: rgba(255,255,255,0.12);
    color: white;
    border: 1px solid rgba(255,255,255,0.24);
}
.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}
.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 999px;
    font-size: 0.94rem;
}

.section {
    padding: 5rem 5%;
}
.intro-card {
    padding-top: 2rem;
}
.card-grid, .news-grid, .feature-grid {
    display: grid;
    gap: 1.2rem;
}
.card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.card-grid article, .news-card, .feature-card, .info-panel, .contact-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: var(--shadow);
}
.card-grid article {
    padding: 1.35rem;
}
.card-grid h3, .news-card h3, .feature-card h3 {
    margin-bottom: 0.45rem;
}
.section-heading {
    margin-bottom: 1.6rem;
}
.eyebrow {
    display: inline-block;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--primary);
    font-weight: 700;
}
.section-heading h2 {
    margin: 0;
    font-size: clamp(1.5rem, 2.4vw, 2.1rem);
}
.about-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
    align-items: start;
}
.about-copy {
    background: var(--surface);
    padding: 1.6rem;
    border-radius: 22px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.info-panel {
    padding: 1.4rem;
    display: grid;
    gap: 1rem;
}
.stat {
    padding: 1rem;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent-soft), #fffdfa);
}
.stat strong {
    display: block;
    font-size: 1.35rem;
    color: var(--primary-dark);
}
.news-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.news-card, .feature-card {
    padding: 1.35rem;
}
.news-date {
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.feature-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.feature-card i {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 0.6rem;
}
.contact-section {
    padding: 1.6rem;
}
.contact-layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.footer {
    padding: 1.4rem 5% 2rem;
    text-align: center;
    color: var(--muted);
}

@media (max-width: 900px) {
    .card-grid,
    .news-grid,
    .feature-grid,
    .about-layout {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 720px) {
    .navbar {
        padding: 0.9rem 1rem;
    }
    .nav-links {
        display: none;
    }
    .hero {
        padding-top: 120px;
    }
    .card-grid,
    .news-grid,
    .feature-grid,
    .about-layout {
        grid-template-columns: 1fr;
    }
    .contact-layout {
        flex-direction: column;
        align-items: flex-start;
    }
}