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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #00d4aa;
    --text-dark: #2d3748;
    --text-medium: #4a5568;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-dark: #1a1a2e;
    --bg-dark-light: #16213e;
}

body {
    font-family: 'Noto Serif SC', 'Gantari', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    color: var(--text-dark);
}

.gradient-bg {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, #0f0c29 100%);
}

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

header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-dark);
}

.logo-symbol {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-symbol i {
    color: #fff;
    font-size: 1.2rem;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 2px;
    font-family: 'Gantari', sans-serif;
}

nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.hero {
    padding: 180px 0 120px;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 1rem;
    letter-spacing: 4px;
    opacity: 0.9;
    margin-bottom: 20px;
    font-family: 'Gantari', sans-serif;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    line-height: 1.2;
    letter-spacing: 2px;
}

.hero-desc {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

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

.btn {
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: #fff;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.features {
    padding: 80px 0;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: linear-gradient(145deg, #ffffff, #f8fafc);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
}

.feature-icon.list,
.feature-icon.vision {
    background-color: #E5E5E5;
    background-color: RGB(229, 229, 229);
    transition: all 0.3s ease;
    cursor: pointer;
}

.feature-icon.list:hover,
.feature-icon.vision:hover {
    background-color: #D0D0D0;
    background-color: RGB(208, 208, 208);
    transform: scale(1.05);
}

.feature-icon.list:active,
.feature-icon.vision:active {
    background-color: #B8B8B8;
    background-color: RGB(184, 184, 184);
    transform: scale(0.98);
}

.feature-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 25px;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.feature-link:hover {
    color: var(--secondary-color);
}

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

.philosophy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.philosophy-text h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.philosophy-text p {
    color: var(--text-medium);
    line-height: 1.9;
    margin-bottom: 15px;
}

.philosophy-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.philosophy-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: pulse 3s ease-in-out infinite;
}

.philosophy-circle::before {
    content: '';
    position: absolute;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.philosophy-circle::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.philosophy-icon {
    font-size: 4rem;
    color: #fff;
    position: relative;
    z-index: 1;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    font-family: 'Gantari', sans-serif;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

footer {
    background: var(--bg-dark);
    padding: 60px 0 30px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-symbol {
    width: 45px;
    height: 45px;
}

.footer-logo-text {
    font-size: 1.4rem;
    font-weight: 600;
    color: #fff;
    font-family: 'Gantari', sans-serif;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-column h4 {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

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

.footer-bottom p {
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.beian-link {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.beian-link:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    nav {
        gap: 20px;
    }

    .hero {
        padding: 140px 0 100px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .philosophy-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .philosophy-circle {
        width: 220px;
        height: 220px;
    }

    .philosophy-circle::before {
        width: 180px;
        height: 180px;
    }

    .philosophy-circle::after {
        width: 140px;
        height: 140px;
    }

    .stats-grid {
        gap: 25px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    .footer-content {
        gap: 30px;
    }
}