/* Website 66 - Gradient Grid Style */
:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --accent-color: #fd79a8;
    --dark-color: #2d3436;
    --text-color: #636e72;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
    --gradient-2: linear-gradient(135deg, #fd79a8 0%, #e84393 100%);
    --gradient-3: linear-gradient(135deg, #00b894 0%, #55efc4 100%);
    --shadow: 0 10px 40px rgba(108, 92, 231, 0.15);
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; background: #f5f6fa; color: var(--text-color); line-height: 1.8; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

header { background: rgba(255,255,255,0.95); box-shadow: var(--shadow); position: fixed; width: 100%; top: 0; z-index: 1000; }
.header-content { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; }
.logo { font-size: 1.6rem; font-weight: 800; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; text-decoration: none; }
nav ul { display: flex; list-style: none; gap: 8px; }
nav a { text-decoration: none; color: var(--dark-color); font-weight: 500; padding: 10px 18px; border-radius: 25px; transition: var(--transition); font-size: 0.9rem; }
nav a:hover, nav a.active { background: var(--gradient-1); color: var(--white); transform: translateY(-2px); }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; }
.mobile-menu-btn span { width: 25px; height: 3px; background: var(--primary-color); border-radius: 3px; transition: var(--transition); }

.hero { min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px; background: linear-gradient(135deg, #f8f9ff 0%, #e8ecff 100%); position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(108, 92, 231, 0.1) 0%, transparent 70%); border-radius: 50%; animation: float 8s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-30px); } }
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
.hero h1 { font-size: 3rem; color: var(--dark-color); margin-bottom: 20px; line-height: 1.2; }
.hero h1 span { background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: block; }
.hero p { font-size: 1.15rem; color: var(--text-color); margin-bottom: 35px; }
.hero-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.btn { padding: 14px 35px; border-radius: 50px; text-decoration: none; font-weight: 600; transition: var(--transition); display: inline-block; }
.btn-primary { background: var(--gradient-1); color: var(--white); box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 15px 35px rgba(108, 92, 231, 0.5); }
.btn-secondary { background: var(--white); color: var(--primary-color); border: 2px solid var(--primary-color); }
.btn-secondary:hover { background: var(--primary-color); color: var(--white); }

section { padding: 100px 0; position: relative; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 2.4rem; color: var(--dark-color); margin-bottom: 15px; display: inline-block; position: relative; }
.section-title h2::after { content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); width: 70px; height: 4px; background: var(--gradient-1); border-radius: 2px; }
.section-title p { color: var(--text-color); font-size: 1.1rem; margin-top: 20px; }

.grid-section { background: var(--white); }
.grid-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; max-width: 1200px; margin: 0 auto; }
.grid-card { background: var(--white); border-radius: 20px; padding: 35px 30px; transition: var(--transition); box-shadow: 0 5px 30px rgba(0,0,0,0.05); position: relative; overflow: hidden; }
.grid-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 5px; background: var(--gradient-1); transform: scaleX(0); transition: var(--transition); }
.grid-card:hover::before { transform: scaleX(1); }
.grid-card:hover { transform: translateY(-10px); box-shadow: var(--shadow); }
.grid-icon { width: 70px; height: 70px; background: linear-gradient(135deg, #f0edff 0%, #e8e0ff 100%); border-radius: 20px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 2rem; transition: var(--transition); }
.grid-card:hover .grid-icon { transform: scale(1.1) rotate(5deg); background: var(--gradient-1); }
.grid-card h3 { color: var(--dark-color); font-size: 1.25rem; margin-bottom: 12px; text-align: center; }
.grid-card p { color: var(--text-color); font-size: 0.95rem; text-align: center; }

.stats-section { background: var(--gradient-1); color: var(--white); padding: 80px 0; }
.stats-section .section-title h2 { color: var(--white); }
.stats-section .section-title p { color: rgba(255,255,255,0.85); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 25px; max-width: 1000px; margin: 0 auto; }
.stat-card { background: rgba(255,255,255,0.15); border-radius: 20px; padding: 30px 25px; text-align: center; backdrop-filter: blur(10px); transition: var(--transition); }
.stat-card:hover { background: rgba(255,255,255,0.25); transform: translateY(-5px); }
.stat-number { font-size: 2.8rem; font-weight: 800; margin-bottom: 10px; }
.stat-label { font-size: 1rem; opacity: 0.9; }

.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; max-width: 1200px; margin: 0 auto; }
.testimonial-card { background: var(--white); padding: 35px; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); position: relative; transition: var(--transition); }
.testimonial-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.testimonial-card::before { content: '"'; position: absolute; top: 20px; left: 25px; font-size: 5rem; color: var(--primary-color); opacity: 0.15; font-family: Georgia, serif; line-height: 1; }
.testimonial-card p { font-style: italic; color: var(--text-color); margin-bottom: 20px; position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 50px; height: 50px; background: var(--gradient-1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--white); font-weight: 700; }
.author-info strong { color: var(--dark-color); display: block; }
.author-info span { color: var(--primary-color); font-size: 0.85rem; }

.contact-section { background: linear-gradient(135deg, #f0edff 0%, #e8e0ff 100%); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 25px; max-width: 1000px; margin: 0 auto; }
.contact-card { background: var(--white); padding: 40px 30px; border-radius: 20px; text-align: center; transition: var(--transition); box-shadow: 0 5px 20px rgba(0,0,0,0.05); }
.contact-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.contact-icon { width: 80px; height: 80px; background: var(--gradient-1); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 2rem; color: var(--white); }
.contact-card h3 { color: var(--dark-color); margin-bottom: 10px; }
.contact-card p { color: var(--primary-color); font-weight: 600; font-size: 1.1rem; }

footer { background: var(--dark-color); color: rgba(255,255,255,0.7); padding: 50px 0 30px; text-align: center; }
footer p { padding: 25px 0; border-top: 1px solid rgba(255,255,255,0.1); margin-top: 25px; }

@media (max-width: 768px) {
    nav ul { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: var(--white); flex-direction: column; padding: 20px; gap: 10px; }
    nav ul.active { display: flex; }
    .mobile-menu-btn { display: flex; }
    .hero h1 { font-size: 2.2rem; }
    .section-title h2 { font-size: 1.8rem; }
}