:root {
    --primary: #1a1a2e;
    --accent: #e84545;
    --accent-light: #ff6b6b;
    --accent-bg: #fff0f0;
    --text: #1a1a2e;
    --text-secondary: #6b7280;
    --bg: #ffffff;
    --bg-gray: #f9fafb;
    --border: #e5e7eb;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
    position: fixed; top: 0; width: 100%; z-index: 100;
    background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1140px; margin: 0 auto; padding: 0 32px;
    display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-brand { font-size: 18px; font-weight: 700; color: var(--accent); letter-spacing: 1px; text-decoration: none; }
.nav-links { display: flex; gap: 4px; }
.nav-links a {
    font-size: 14px; color: var(--text-secondary); text-decoration: none;
    padding: 8px 14px; border-radius: 6px; transition: 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); background: var(--accent-bg); }
.nav-mobile { display: none; background: none; border: none; font-size: 24px; cursor: pointer; padding: 4px; }
.mobile-menu {
    display: none; position: fixed; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border); padding: 16px; z-index: 99;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
    display: block; padding: 12px 16px; color: var(--text); text-decoration: none;
    font-size: 15px; border-radius: 6px;
}
.mobile-menu a:hover { background: var(--accent-bg); color: var(--accent); }

/* Page Hero */
.page-hero {
    padding: 120px 32px 60px; text-align: center;
    background: linear-gradient(180deg, #fff5f5 0%, #fff 100%); position: relative;
}
.page-hero h1 { font-size: 40px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.page-hero p { font-size: 17px; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }
.page-hero .breadcrumb { font-size: 13px; color: var(--text-secondary); margin-bottom: 16px; }
.page-hero .breadcrumb a { color: var(--accent); text-decoration: none; }

/* Section */
.section { max-width: 1140px; margin: 0 auto; padding: 80px 32px; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .tag {
    font-size: 13px; font-weight: 600; color: var(--accent);
    text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px;
}
.section-header h2 { font-size: 32px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--text-secondary); max-width: 520px; margin: 0 auto; }
.bg-gray { background: var(--bg-gray); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; padding: 14px 32px;
    border-radius: 8px; font-size: 15px; font-weight: 500;
    text-decoration: none; transition: 0.2s; border: none; cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,69,69,0.25); }
.btn-outline { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-white { background: #fff; color: var(--primary); font-weight: 600; }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

/* Cards */
.card {
    padding: 32px 24px; border: 1px solid var(--border); border-radius: 12px;
    transition: 0.25s; position: relative; overflow: hidden; background: #fff;
}
.card:hover { border-color: transparent; box-shadow: 0 8px 30px rgba(0,0,0,0.08); transform: translateY(-4px); }
.card-icon {
    width: 48px; height: 48px; border-radius: 10px; display: flex;
    align-items: center; justify-content: center; font-size: 24px;
    margin-bottom: 16px; background: var(--accent-bg);
}
.card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
.card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.card-top-line::after {
    content: ''; position: absolute; top: 0; left: 0;
    width: 100%; height: 3px; background: var(--accent);
    transform: scaleX(0); transition: 0.3s;
}
.card-top-line:hover::after { transform: scaleX(1); }

/* Grid */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Stats */
.stats-bar { background: var(--primary); padding: 48px 32px; }
.stats-inner { max-width: 1140px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; }
.stat-num { font-size: 36px; font-weight: 700; color: #fff; }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.6); margin-top: 4px; }

/* Product Card */
.product-card { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: 0.25s; background: #fff; }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.product-img { width: 100%; height: 200px; display: flex; align-items: center; justify-content: center; font-size: 64px; }
.product-img-1 { background: linear-gradient(135deg, #ffecd2, #fcb69f); }
.product-img-2 { background: linear-gradient(135deg, #a1c4fd, #c2e9fb); }
.product-img-3 { background: linear-gradient(135deg, #d4fc79, #96e6a1); }
.product-img-4 { background: linear-gradient(135deg, #fbc2eb, #a6c1ee); }
.product-img-5 { background: linear-gradient(135deg, #ffd89b, #19547b); }
.product-img-6 { background: linear-gradient(135deg, #c1dfc4, #deecdd); }
.product-info { padding: 20px; }
.product-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
.product-info p { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; line-height: 1.6; }
.product-tag { display: inline-block; background: var(--accent-bg); color: var(--accent); font-size: 12px; padding: 3px 10px; border-radius: 4px; font-weight: 500; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.about-content h3 { font-size: 24px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
.about-content p { font-size: 15px; color: var(--text-secondary); margin-bottom: 14px; line-height: 1.8; }
.about-info { background: var(--bg-gray); border-radius: 16px; padding: 36px; }
.info-row { display: flex; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.info-row:last-child { border-bottom: none; }
.info-label { width: 90px; color: var(--text-secondary); flex-shrink: 0; font-weight: 500; }
.info-value { color: var(--text); font-weight: 500; }

/* Timeline */
.timeline { max-width: 700px; margin: 0 auto; position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 15px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.timeline-item { position: relative; margin-bottom: 36px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot { position: absolute; left: -33px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--accent); }
.timeline-date { font-size: 13px; color: var(--accent); font-weight: 600; margin-bottom: 4px; }
.timeline-title { font-size: 16px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.timeline-desc { font-size: 14px; color: var(--text-secondary); }

/* Team */
.team-card { text-align: center; padding: 32px 20px; background: #fff; border: 1px solid var(--border); border-radius: 12px; transition: 0.25s; }
.team-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
.team-avatar { width: 80px; height: 80px; border-radius: 50%; background: var(--accent-bg); display: flex; align-items: center; justify-content: center; font-size: 32px; margin: 0 auto 16px; color: var(--accent); font-weight: 700; }
.team-card h4 { font-size: 16px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.team-card .role { font-size: 13px; color: var(--accent); margin-bottom: 8px; }
.team-card p { font-size: 13px; color: var(--text-secondary); }

/* Contact */
.contact-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.contact-card { display: flex; align-items: flex-start; gap: 16px; padding: 24px; background: #fff; border-radius: 8px; border: 1px solid var(--border); }
.contact-icon { width: 40px; height: 40px; background: var(--accent-bg); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.contact-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 2px; }
.contact-value { font-size: 15px; color: var(--text); font-weight: 500; }
.contact-form { max-width: 640px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; color: var(--primary); }
.form-input { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; transition: 0.2s; outline: none; font-family: inherit; }
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,69,69,0.1); }
textarea.form-input { min-height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Map placeholder */
.map-placeholder { width: 100%; height: 300px; background: var(--bg-gray); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--text-secondary); font-size: 48px; border: 1px solid var(--border); }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, #2d2d5e 100%); padding: 80px 32px; text-align: center; }
.cta-section h2 { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 16px; color: rgba(255,255,255,0.7); margin-bottom: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }

/* Testimonials */
.testimonial-card { padding: 28px; background: #fff; border: 1px solid var(--border); border-radius: 12px; transition: 0.25s; }
.testimonial-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
.testimonial-stars { color: #f59e0b; font-size: 16px; margin-bottom: 10px; letter-spacing: 2px; }
.testimonial-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--accent-bg); display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 600; color: var(--accent); }
.testimonial-name { font-size: 14px; font-weight: 600; color: var(--primary); }
.testimonial-role { font-size: 12px; color: var(--text-secondary); }

/* Process */
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.process-item { text-align: center; position: relative; }
.process-num { width: 56px; height: 56px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 22px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.process-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.process-item p { font-size: 13px; color: var(--text-secondary); }
.process-arrow { position: absolute; top: 28px; right: -16px; color: var(--border); font-size: 20px; }
.process-item:last-child .process-arrow { display: none; }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 12px; overflow: hidden; }
.faq-question { padding: 18px 24px; font-size: 15px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; background: #fff; transition: 0.2s; }
.faq-question:hover { background: var(--bg-gray); }
.faq-answer { padding: 0 24px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.7; display: none; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-arrow { transition: 0.3s; font-size: 12px; color: var(--text-secondary); }

/* Partners */
.partners-row { display: flex; justify-content: center; align-items: center; gap: 48px; flex-wrap: wrap; opacity: 0.5; }
.partner-logo { font-size: 18px; font-weight: 700; color: var(--text-secondary); letter-spacing: 2px; }

/* Footer */
.footer { background: var(--primary); padding: 48px 32px 32px; }
.footer-inner { max-width: 1140px; margin: 0 auto; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.footer-desc { font-size: 13px; color: rgba(255,255,255,0.5); max-width: 320px; }
.footer-links { display: flex; gap: 48px; }
.footer-col h4 { font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.4); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,0.7); text-decoration: none; padding: 4px 0; transition: 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { padding-top: 24px; display: flex; justify-content: space-between; font-size: 13px; color: rgba(255,255,255,0.35); }

/* Back to top */
.back-top { position: fixed; right: 24px; bottom: 24px; width: 40px; height: 40px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 16px; cursor: pointer; opacity: 0; transition: 0.3s; z-index: 20; }
.back-top.show { opacity: 1; }
.back-top:hover { background: var(--accent); }

/* Animation */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-mobile { display: block; }
    .page-hero h1 { font-size: 28px; }
    .stats-inner { grid-template-columns: repeat(2, 1fr); }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .process-grid { grid-template-columns: 1fr; }
    .process-arrow { display: none !important; }
    .form-row { grid-template-columns: 1fr; }
    .footer-top { flex-direction: column; gap: 24px; }
    .footer-bottom { flex-direction: column; gap: 8px; }
    .partners-row { gap: 24px; }
}