/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: #333; line-height: 1.6; background: #fff; }
a { text-decoration: none; color: inherit; transition: color .3s; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Header / Navbar ===== */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); box-shadow: 0 1px 8px rgba(0,0,0,.06); transition: box-shadow .3s; }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: #6B3FA0; }
.logo .logo-icon { width: 36px; height: 36px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
.logo .logo-icon img { width: 100%; height: 100%; }
.nav-list { display: flex; gap: 32px; align-items: center; }
.nav-list li { position: relative; }
.nav-list li > a { font-size: 15px; color: #333; padding: 8px 0; display: block; transition: color .3s; }
.nav-list li > a:hover, .nav-list li > a.active { color: #6B3FA0; }
.nav-list li > a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: #6B3FA0; transition: width .3s; }
.nav-list li > a:hover::after, .nav-list li > a.active::after { width: 100%; }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 6px; font-size: 14px; font-weight: 500; cursor: pointer; border: none; transition: all .3s; }
.btn-outline { border: 1px solid #6B3FA0; color: #6B3FA0; background: transparent; }
.btn-outline:hover { background: #6B3FA0; color: #fff; }
.btn-primary { background: linear-gradient(135deg, #6B3FA0, #8B5CC8); color: #fff; box-shadow: 0 4px 12px rgba(107,63,160,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(107,63,160,.4); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.mobile-toggle span { width: 24px; height: 2px; background: #333; transition: .3s; }

/* ===== Hero ===== */
.hero { padding: 140px 0 80px; background: linear-gradient(135deg, #f3eeff 0%, #efe8ff 50%, #f8f3ff 100%); position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -200px; right: -200px; width: 600px; height: 600px; background: radial-gradient(circle, rgba(107,63,160,.08) 0%, transparent 70%); border-radius: 50%; }
.hero::after { content: ''; position: absolute; bottom: -100px; left: -100px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(155,111,208,.06) 0%, transparent 70%); border-radius: 50%; }
.hero .container { display: flex; align-items: center; gap: 60px; position: relative; z-index: 1; }
.hero-content { flex: 1; }
.hero-badge { display: inline-block; padding: 6px 16px; background: rgba(107,63,160,.08); color: #6B3FA0; border-radius: 20px; font-size: 13px; font-weight: 500; margin-bottom: 20px; }
.hero-content h1 { font-size: 42px; font-weight: 800; line-height: 1.3; margin-bottom: 20px; background: linear-gradient(135deg, #1a1a2e, #6B3FA0); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-content p { font-size: 17px; color: #666; margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; }
.hero-visual { flex: 1; display: flex; justify-content: center; }
.hero-img-placeholder { width: 500px; height: 360px; background: linear-gradient(135deg, #6B3FA0, #9B6FD0); border-radius: 16px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 80px; box-shadow: 0 20px 60px rgba(107,63,160,.2); position: relative; overflow: hidden; }
.hero-img-placeholder::before { content: ''; position: absolute; inset: 3px; border: 1px solid rgba(255,255,255,.2); border-radius: 14px; }
.hero-img-placeholder .dashboard-mock { width: 100%; height: 100%; padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.mock-topbar { height: 32px; background: rgba(255,255,255,.15); border-radius: 6px; display: flex; align-items: center; padding: 0 12px; gap: 8px; }
.mock-dot { width: 8px; height: 8px; border-radius: 50%; }
.mock-dot:nth-child(1) { background: #ff6b6b; }
.mock-dot:nth-child(2) { background: #ffd93d; }
.mock-dot:nth-child(3) { background: #6bff8a; }
.mock-body { flex: 1; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 10px; }
.mock-card { background: rgba(255,255,255,.12); border-radius: 8px; padding: 14px; display: flex; flex-direction: column; justify-content: space-between; }
.mock-card-title { font-size: 11px; opacity: .7; }
.mock-card-value { font-size: 22px; font-weight: 700; }
.mock-bar { height: 6px; background: rgba(255,255,255,.2); border-radius: 3px; overflow: hidden; }
.mock-bar-fill { height: 100%; border-radius: 3px; background: rgba(255,255,255,.6); }

/* ===== Stats ===== */
.stats { padding: 60px 0; background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 30px; text-align: center; }
.stat-item .stat-number { font-size: 40px; font-weight: 800; color: #6B3FA0; line-height: 1.2; }
.stat-item .stat-label { font-size: 14px; color: #888; margin-top: 6px; }

/* ===== Section Common ===== */
.section { padding: 80px 0; }
.section-alt { background: #f8f9fd; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { font-size: 34px; font-weight: 700; margin-bottom: 12px; }
.section-header p { font-size: 16px; color: #888; max-width: 600px; margin: 0 auto; }
.section-tag { display: inline-block; padding: 4px 14px; background: rgba(107,63,160,.06); color: #6B3FA0; border-radius: 16px; font-size: 13px; margin-bottom: 12px; }

/* ===== Features ===== */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card { background: #fff; border-radius: 12px; padding: 32px 24px; border: 1px solid #eef0f5; transition: all .35s; cursor: default; text-align: center; }
.feature-card img { margin: 0 auto 18px; }
.feature-card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(107,63,160,.1); border-color: #d0c8e8; }
.feature-icon { width: 56px; height: 56px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 18px; }
.feature-icon.blue { background: linear-gradient(135deg, #efe8ff, #d8ccf0); color: #6B3FA0; }
.feature-icon.green { background: linear-gradient(135deg, #e6faf0, #c8f5dc); color: #0fa958; }
.feature-icon.orange { background: linear-gradient(135deg, #fff4e6, #ffe5c2); color: #f08c00; }
.feature-icon.purple { background: linear-gradient(135deg, #f3eeff, #e0d4ff); color: #7c3aed; }
.feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: #888; line-height: 1.7; }

/* ===== Solutions 1+4 ===== */
.solutions-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.solutions-center { background: linear-gradient(135deg, #6B3FA0, #8B5CC8); border-radius: 16px; padding: 48px 36px; color: #fff; text-align: center; }
.solutions-center h3 { font-size: 24px; margin-bottom: 12px; }
.solutions-center p { font-size: 15px; opacity: .85; }
.solutions-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.solution-card { background: #fff; border: 1px solid #eef0f5; border-radius: 12px; padding: 28px 20px; transition: all .3s; }
.solution-card:hover { box-shadow: 0 8px 24px rgba(107,63,160,.1); transform: translateY(-4px); }
.solution-num { font-size: 28px; font-weight: 800; color: #6B3FA0; opacity: .3; margin-bottom: 8px; }
.solution-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.solution-card p { font-size: 13px; color: #888; }

/* ===== Why Choose Us ===== */
.reasons-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.reason-card { text-align: center; padding: 40px 24px; background: #fff; border-radius: 12px; border: 1px solid #eef0f5; transition: .3s; }
.reason-card:hover { box-shadow: 0 10px 30px rgba(107,63,160,.08); }
.reason-num { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, #6B3FA0, #9B6FD0); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; margin: 0 auto 16px; }
.reason-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.reason-card p { font-size: 14px; color: #888; }

/* ===== Certifications ===== */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 720px; margin: 0 auto; }
.cert-item { text-align: center; padding: 24px 16px; background: #fff; border-radius: 12px; border: 1px solid #eef0f5; }
.cert-icon { font-size: 40px; margin-bottom: 10px; }
.cert-item p { font-size: 13px; color: #666; }

/* ===== Testimonials ===== */
.testimonials-slider { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: #fff; border-radius: 12px; padding: 32px; border: 1px solid #eef0f5; }
.testimonial-card .quote { font-size: 14px; color: #666; line-height: 1.8; margin-bottom: 20px; font-style: italic; position: relative; padding-left: 20px; }
.testimonial-card .quote::before { content: '"'; position: absolute; left: 0; top: -4px; font-size: 28px; color: #6B3FA0; font-style: normal; }
.testimonial-info { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg, #6B3FA0, #9B6FD0); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; font-weight: 600; }
.testimonial-name { font-size: 15px; font-weight: 600; }
.testimonial-role { font-size: 12px; color: #999; }

/* ===== Partners ===== */
.partners-scroll { overflow: hidden; position: relative; }
.partners-track { display: flex; gap: 40px; animation: scrollPartners 30s linear infinite; }
.partner-logo { min-width: 140px; height: 60px; background: #fff; border: 1px solid #eee; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 14px; color: #999; font-weight: 500; }
@keyframes scrollPartners { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== News ===== */
.news-tabs { display: flex; gap: 16px; justify-content: center; margin-bottom: 36px; }
.news-tab { padding: 8px 20px; border-radius: 20px; font-size: 14px; cursor: pointer; border: 1px solid #ddd; transition: .3s; background: #fff; }
.news-tab.active, .news-tab:hover { background: #6B3FA0; color: #fff; border-color: #6B3FA0; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid #eef0f5; transition: .3s; }
.news-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-4px); }
.news-img { height: 180px; background: linear-gradient(135deg, #efe8ff, #d8ccf0); display: flex; align-items: center; justify-content: center; font-size: 36px; overflow: hidden; }
.news-img img { width: 100%; height: 100%; object-fit: cover; }
.news-body { padding: 20px; }
.news-date { font-size: 12px; color: #999; margin-bottom: 8px; }
.news-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; line-height: 1.5; }
.news-card p { font-size: 13px; color: #888; line-height: 1.6; }

/* ===== CTA ===== */
.cta { padding: 80px 0; background: linear-gradient(135deg, #6B3FA0, #8B5CC8); color: #fff; text-align: center; }
.cta h2 { font-size: 34px; font-weight: 700; margin-bottom: 16px; }
.cta p { font-size: 16px; opacity: .85; margin-bottom: 32px; }
.cta .btn-white { background: #fff; color: #6B3FA0; padding: 14px 36px; font-size: 16px; font-weight: 600; border-radius: 8px; }
.cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); }

/* ===== Footer ===== */
.footer { background: #1a1a2e; color: #ccc; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 12px; color: #999; }
.footer h4 { font-size: 15px; color: #fff; font-weight: 600; margin-bottom: 16px; }
.footer ul li { margin-bottom: 10px; }
.footer ul li a { font-size: 13px; color: #999; transition: color .3s; }
.footer ul li a:hover { color: #9B6FD0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: #666; }

/* ===== Pricing Page ===== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.pricing-card { background: #fff; border-radius: 16px; padding: 40px 32px; border: 1px solid #eef0f5; text-align: center; transition: .3s; position: relative; }
.pricing-card.featured { border-color: #6B3FA0; box-shadow: 0 8px 32px rgba(107,63,160,.12); }
.pricing-card.featured::before { content: '推荐'; position: absolute; top: -1px; right: 24px; background: #6B3FA0; color: #fff; padding: 4px 16px; border-radius: 0 0 8px 8px; font-size: 12px; }
.pricing-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(107,63,160,.12); }
.pricing-name { font-size: 20px; font-weight: 600; margin-bottom: 8px; }
.pricing-desc { font-size: 13px; color: #999; margin-bottom: 24px; }
.pricing-price { font-size: 42px; font-weight: 800; color: #6B3FA0; margin-bottom: 8px; }
.pricing-price span { font-size: 16px; font-weight: 400; color: #999; }
.pricing-features { text-align: left; margin: 24px 0; }
.pricing-features li { padding: 8px 0; font-size: 14px; color: #666; display: flex; align-items: center; gap: 8px; }
.pricing-features li::before { content: '✓'; color: #6B3FA0; font-weight: 700; }

/* ===== Page Header ===== */
.page-header { padding: 120px 0 60px; background: linear-gradient(135deg, #f3eeff, #efe8ff); text-align: center; }
.page-header h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.page-header p { font-size: 16px; color: #888; }

/* ===== About Page ===== */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-intro h3 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.about-intro p { font-size: 15px; color: #666; line-height: 1.8; margin-bottom: 12px; }
.about-img { height: 320px; background: linear-gradient(135deg, #6B3FA0, #9B6FD0); border-radius: 16px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 60px; }
.timeline { max-width: 700px; margin: 0 auto; position: relative; }
.timeline::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: #e0e4ef; transform: translateX(-50%); }
.timeline-item { display: flex; align-items: flex-start; margin-bottom: 40px; position: relative; }
.timeline-item:nth-child(odd) { flex-direction: row-reverse; text-align: right; }
.timeline-content { width: 45%; padding: 20px; background: #fff; border-radius: 10px; border: 1px solid #eef0f5; }
.timeline-year { font-size: 20px; font-weight: 700; color: #6B3FA0; margin-bottom: 6px; }
.timeline-dot { width: 14px; height: 14px; border-radius: 50%; background: #6B3FA0; position: absolute; left: 50%; top: 24px; transform: translateX(-50%); z-index: 1; }

/* ===== Product Detail ===== */
.product-modules { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.product-module { background: #fff; border-radius: 12px; padding: 32px; border: 1px solid #eef0f5; }
.product-module h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.product-module p { font-size: 14px; color: #888; line-height: 1.7; }
.product-module ul li { font-size: 14px; color: #666; padding: 6px 0; padding-left: 16px; position: relative; }
.product-module ul li::before { content: '•'; color: #6B3FA0; position: absolute; left: 0; }

/* ===== Cases Page ===== */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid #eef0f5; transition: .3s; }
.case-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-4px); }
.case-img { height: 200px; background: linear-gradient(135deg, #efe8ff, #d8ccf0); display: flex; align-items: center; justify-content: center; font-size: 48px; }
.case-body { padding: 24px; }
.case-tag { display: inline-block; padding: 3px 10px; background: rgba(107,63,160,.06); color: #6B3FA0; border-radius: 12px; font-size: 12px; margin-bottom: 10px; }
.case-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.case-card p { font-size: 13px; color: #888; line-height: 1.7; }
.case-stats { display: flex; gap: 20px; margin-top: 14px; }
.case-stat { text-align: center; }
.case-stat .num { font-size: 20px; font-weight: 700; color: #6B3FA0; }
.case-stat .label { font-size: 11px; color: #999; }

/* ===== Solutions Page ===== */
.solution-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 60px; }
.solution-detail:nth-child(even) { direction: rtl; }
.solution-detail:nth-child(even) > * { direction: ltr; }
.solution-detail h3 { font-size: 24px; font-weight: 700; margin-bottom: 14px; }
.solution-detail p { font-size: 15px; color: #666; line-height: 1.8; margin-bottom: 16px; }
.solution-detail ul li { font-size: 14px; color: #666; padding: 6px 0; padding-left: 20px; position: relative; }
.solution-detail ul li::before { content: '✓'; color: #6B3FA0; position: absolute; left: 0; font-weight: 700; }
.solution-img { height: 300px; background: linear-gradient(135deg, #efe8ff, #d8ccf0); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 60px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid, .reasons-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .hero .container { flex-direction: column; text-align: center; }
  .hero-content p { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-img-placeholder { width: 100%; max-width: 460px; height: 300px; }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .solutions-layout { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .solution-detail { grid-template-columns: 1fr; }
  .solution-detail:nth-child(even) { direction: ltr; }
}
@media (max-width: 768px) {
  .nav-list { display: none; position: absolute; top: 72px; left: 0; width: 100%; background: #fff; flex-direction: column; padding: 20px; gap: 0; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
  .nav-list.open { display: flex; }
  .nav-list li > a { padding: 12px 0; border-bottom: 1px solid #f0f0f0; }
  .mobile-toggle { display: flex; }
  .features-grid, .reasons-grid, .testimonials-slider, .news-grid, .pricing-grid, .cases-grid, .product-modules { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-content h1 { font-size: 30px; }
  .section-header h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}