/* Common Styles for All Pages */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; color: #333; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.08); position: fixed; top: 0; left: 0; right: 0; z-index: 1000; }
.header .container { display: flex; justify-content: space-between; align-items: center; height: 70px; }
.logo { font-size: 24px; font-weight: bold; color: #1a73e8; }
.logo a { color: #1a73e8; }
.logo span { color: #333; }

.header-right { display: flex; align-items: center; gap: 30px; }
.header-nav { display: flex; gap: 20px; }
.header-nav a { font-size: 14px; color: #555; transition: color 0.3s; }
.header-nav a:hover, .header-nav a.active { color: #1a73e8; }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a { display: flex; align-items: center; gap: 4px; }
.nav-dropdown > a::after { content: ''; display: inline-block; width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 4px solid currentColor; margin-left: 2px; }
.dropdown-menu { display: none; position: absolute; top: 100%; left: 50%; transform: translateX(-50%); background: #fff; border-radius: 8px; box-shadow: 0 8px 30px rgba(0,0,0,0.12); padding: 15px 0 10px 0; min-width: 180px; z-index: 100; }
.dropdown-menu::before { content: ''; position: absolute; top: -8px; left: 50%; transform: translateX(-50%); border-left: 8px solid transparent; border-right: 8px solid transparent; border-bottom: 8px solid #fff; }
.dropdown-menu a { display: block; padding: 10px 20px; font-size: 14px; color: #555; white-space: nowrap; transition: all 0.2s; }
.dropdown-menu a:hover { background: #f5f8ff; color: #1a73e8; }
.nav-dropdown:hover .dropdown-menu { display: block; }
.header-tel { font-size: 18px; font-weight: bold; color: #1a73e8; display: inline-flex; align-items: center; gap: 5px; }
.header-tel svg { width: 18px; height: 18px; fill: currentColor; }
.btn-consult { background: #1a73e8; color: #fff; padding: 8px 20px; border-radius: 4px; font-size: 14px; cursor: pointer; border: none; transition: background 0.3s; }
.btn-consult:hover { background: #1557b0; }

/* Page Hero */
.page-hero { margin-top: 70px; background: linear-gradient(135deg, #0d47a1 0%, #1565c0 50%, #1976d2 100%); color: #fff; padding: 60px 0; text-align: center; }
.page-hero h1 { font-size: 36px; margin-bottom: 15px; }
.page-hero p { font-size: 18px; opacity: 0.9; max-width: 700px; margin: 0 auto; }

/* Home Hero */
.hero { margin-top: 70px; background: radial-gradient(circle at 82% 30%, rgba(100,181,246,0.26), transparent 30%), linear-gradient(135deg, #0b3d91 0%, #145bb8 52%, #1a73e8 100%); color: #fff; padding: 78px 0 72px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(4,23,61,0.28) 0%, rgba(13,71,161,0.08) 58%, rgba(255,255,255,0.05) 100%); z-index: 0; }
.hero-content { position: relative; z-index: 1; display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.hero-text { flex: 1; }
.hero h1 { font-size: 42px; margin-bottom: 15px; font-weight: 700; }
.hero .subtitle { font-size: 20px; opacity: 0.9; margin-bottom: 30px; }
.hero-stats { display: flex; gap: 40px; margin-bottom: 40px; }
.hero-stat { text-align: center; }
.hero-stat .num { font-size: 36px; font-weight: bold; color: #64b5f6; }
.hero-stat .label { font-size: 14px; opacity: 0.8; margin-top: 5px; }
.hero-buttons { display: flex; gap: 15px; }
.btn-outline { background: transparent; color: #fff; padding: 14px 35px; border-radius: 4px; font-size: 16px; border: 2px solid rgba(255,255,255,0.6); cursor: pointer; transition: all 0.3s; }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-trust span { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.22); border-radius: 4px; padding: 6px 10px; font-size: 13px; color: rgba(255,255,255,0.9); }
.hero-quick-form { background: rgba(255,255,255,0.12); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.2); border-radius: 12px; padding: 30px 25px; width: 340px; flex-shrink: 0; }
.hero-quick-form h3 { font-size: 20px; margin-bottom: 5px; color: #fff; }
.hero-quick-form .form-subtitle { font-size: 13px; opacity: 0.8; margin-bottom: 18px; }
.hero-quick-form input { width: 100%; padding: 13px 15px; border: 1px solid rgba(255,255,255,0.3); border-radius: 6px; font-size: 15px; margin-bottom: 12px; background: rgba(255,255,255,0.95); color: #333; }
.hero-quick-form input::placeholder { color: #999; }
.hero-quick-form .btn-quick-submit { width: 100%; background: #ff6d00; color: #fff; padding: 14px; border: none; border-radius: 6px; font-size: 16px; font-weight: bold; cursor: pointer; transition: all 0.3s; }
.hero-quick-form .btn-quick-submit:hover { background: #e65100; }
.hero-quick-form .form-trust { font-size: 12px; opacity: 0.7; margin-top: 10px; text-align: center; }

/* Section Common */
.section { padding: 50px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 32px; color: #222; margin-bottom: 10px; }
.section-title p { font-size: 16px; color: #666; }
.section-alt { background: #f8f9fa; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.feature-card { background: #fff; border-radius: 8px; padding: 35px 25px; text-align: center; box-shadow: 0 4px 15px rgba(0,0,0,0.06); transition: all 0.3s; border: 1px solid #eee; }
.feature-card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); border-color: #1a73e8; }
.feature-icon { width: 60px; height: 60px; margin: 0 auto 20px; background: #eaf2ff; color: #1a73e8; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.feature-icon svg { width: 30px; height: 30px; fill: currentColor; }
.feature-card h3 { font-size: 18px; margin-bottom: 10px; color: #222; }
.feature-card p { font-size: 14px; color: #666; line-height: 1.8; }

/* Platform Modules */
.platform-modules { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.module-card { background: #fff; border: 1px solid #e6edf7; border-radius: 8px; padding: 24px 18px; box-shadow: 0 3px 14px rgba(0,0,0,0.05); transition: all 0.3s; display: flex; flex-direction: column; gap: 10px; min-height: 260px; }
.module-card:hover { transform: translateY(-4px); border-color: #1a73e8; box-shadow: 0 8px 24px rgba(26,115,232,0.12); }
.module-card .module-icon { width: 48px; height: 48px; border-radius: 8px; background: #e3f2fd; color: #1a73e8; display: flex; align-items: center; justify-content: center; }
.module-card .module-icon svg { width: 26px; height: 26px; fill: currentColor; }
.module-card h3 { font-size: 17px; color: #222; line-height: 1.35; }
.module-card p { font-size: 13px; color: #666; line-height: 1.7; flex: 1; }
.module-features { list-style: none; display: grid; gap: 7px; margin-top: 4px; }
.module-features li { font-size: 13px; color: #444; padding-left: 14px; position: relative; line-height: 1.45; }
.module-features li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: #1a73e8; position: absolute; left: 0; top: 8px; }
.module-card .module-link { font-size: 13px; color: #1a73e8; font-weight: bold; }

/* Advantages */
.advantages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.adv-card {background: #fff;border-radius: 8px;padding: 30px;/* border-left: 4px solid #1a73e8; */box-shadow: 0 2px 12px rgba(0,0,0,0.05);}
.adv-card h3 { font-size: 18px; margin-bottom: 12px; color: #1a73e8; display: flex; align-items: center; gap: 8px; }
.adv-card h3 .adv-icon { width: 24px; height: 24px; flex: 0 0 24px; display: inline-flex; align-items: center; justify-content: center; }
.adv-card h3 svg { width: 22px; height: 22px; fill: currentColor; flex: 0 0 22px; }
.adv-card p { font-size: 14px; color: #555; line-height: 1.8; }

/* Detail Content */
.detail-section { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.detail-section.reverse { direction: rtl; }
.detail-section.reverse > * { direction: ltr; }
.detail-img {  border-radius: 12px; text-align: center; min-height: 300px; display: flex; align-items: center; justify-content: center; }
.detail-info h2 { font-size: 26px; margin-bottom: 15px; color: #222; }
.detail-info p { font-size: 15px; color: #555; margin-bottom: 15px; line-height: 1.8; }
.detail-list { list-style: none; }
.detail-list li { padding: 8px 0; padding-left: 25px; position: relative; font-size: 14px; color: #444; }
.detail-list li::before { content: '✓'; position: absolute; left: 0; color: #1a73e8; font-weight: bold; }
.product-img-fallback { display: flex; flex-direction: column; align-items: center; justify-content: center; color: #1a73e8; text-align: center; }
.product-img-fallback .icon { font-size: 48px; margin-bottom: 10px; }
.product-img-fallback .icon svg { width: 56px; height: 56px; fill: currentColor; }
.product-img-fallback .text { font-size: 14px; color: #666; }

/* Product/solution cards */
.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.product-card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.08); border: 2px solid #eee; transition: all 0.3s; position: relative; }
.product-card:hover { border-color: #1a73e8; box-shadow: 0 8px 30px rgba(26,115,232,0.15); }
.product-badge { position: absolute; top: 15px; left: 15px; background: #ff6d00; color: #fff; padding: 4px 12px; border-radius: 3px; font-size: 12px; font-weight: bold; z-index: 2; }
.product-badge-pro { background: #1a73e8; }
.product-img { background: linear-gradient(135deg, #e8f4fd, #d0e8f7); padding: 0; text-align: center; border-bottom: 1px solid #eee; height: 260px; display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.product-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-info { padding: 30px; }
.product-info h3 { font-size: 22px; color: #222; margin-bottom: 10px; }
.product-desc { font-size: 14px; color: #666; margin-bottom: 20px; line-height: 1.7; }
.product-specs { margin-bottom: 20px; }
.product-specs h4 { font-size: 14px; color: #1a73e8; margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid #eee; }
.product-specs ul { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.product-specs li { font-size: 13px; color: #555; padding-left: 15px; position: relative; }
.product-specs li::before { content: '•'; position: absolute; left: 0; color: #1a73e8; }
.product-features { display: flex; gap: 15px; flex-wrap: wrap; margin-bottom: 20px; }
.product-features span { font-size: 13px; color: #1a73e8; background: #e3f2fd; padding: 4px 10px; border-radius: 3px; }
.btn-product { background: #1a73e8; color: #fff; padding: 12px 30px; border: none; border-radius: 4px; font-size: 15px; font-weight: bold; cursor: pointer; transition: all 0.3s; width: 100%; margin-top: 18px; }
.btn-product:hover { background: #1557b0; transform: translateY(-2px); }

/* System Overview */
.solution-banner-section { background: url('images/solution-banner.jpg') center/cover no-repeat; position: relative; }
.solution-banner-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(13,71,161,0.88) 0%, rgba(21,101,192,0.82) 50%, rgba(25,118,210,0.78) 100%); }
.solution-banner-section > .container { position: relative; z-index: 1; }
.solution-banner-section .system-info h2 { color: #fff; }
.solution-banner-section .system-info p { color: rgba(255,255,255,0.9); }
.solution-banner-section .system-list li { color: rgba(255,255,255,0.92); }
.solution-banner-section .system-list li::before { color: #64b5f6; }
.system-overview { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.system-image {  border-radius: 12px;  text-align: center; min-height: 380px; display: flex; align-items: center; justify-content: center; }
.system-image svg { width: 100%; max-width: 450px; }
.system-info h2 { font-size: 28px; margin-bottom: 20px; color: #222; }
.system-info p { font-size: 15px; color: #555; margin-bottom: 20px; line-height: 1.8; }
.system-list { list-style: none; }
.system-list li { padding: 10px 0; padding-left: 25px; position: relative; font-size: 15px; color: #444; }
.system-list li::before { content: '✓'; position: absolute; left: 0; color: #1a73e8; font-weight: bold; }

/* Specs Table */
.specs-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.specs-table th, .specs-table td { padding: 12px 15px; text-align: left; border: 1px solid #eee; font-size: 14px; }
.specs-table th { background: #1a73e8; color: #fff; font-weight: 500; }
.specs-table tr:nth-child(even) { background: #f8f9fa; }
.specs-table tr:hover { background: #e3f2fd; }

/* CTA Section */
.cta-section { background: linear-gradient(135deg, #ff6d00, #ff8f00); color: #fff; padding: 60px 0; text-align: center; }
.cta-section h2 { font-size: 30px; margin-bottom: 15px; }
.cta-section p { font-size: 16px; opacity: 0.9; margin-bottom: 30px; }
.cta-buttons { display: flex; justify-content: center; gap: 20px; }
.btn-primary { background: #ff6d00; color: #fff; padding: 14px 35px; border-radius: 4px; font-size: 16px; font-weight: bold; border: none; cursor: pointer; transition: all 0.3s; }
.btn-primary:hover { background: #e65100; transform: translateY(-2px); }
.btn-white { background: #fff; color: #ff6d00; padding: 14px 35px; border-radius: 4px; font-size: 16px; font-weight: bold; border: none; cursor: pointer; transition: all 0.3s; }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.2); }
.btn-white-outline { background: transparent; color: #fff; padding: 14px 35px; border-radius: 4px; font-size: 16px; border: 2px solid #fff; cursor: pointer; transition: all 0.3s; }
.btn-white-outline:hover { background: rgba(255,255,255,0.1); }

/* Mid CTA */
.mid-cta { background: linear-gradient(135deg, #1a73e8, #0d47a1); color: #fff; padding: 50px 0; text-align: center; }
.mid-cta h2 { font-size: 28px; margin-bottom: 10px; }
.mid-cta p { font-size: 16px; opacity: 0.85; margin-bottom: 25px; }
.mid-cta-form { display: flex; justify-content: center; gap: 12px; max-width: 500px; margin: 0 auto; }
.mid-cta-form input { flex: 1; padding: 14px 18px; border: none; border-radius: 6px; font-size: 15px; background: rgba(255,255,255,0.95); color: #333; }
.mid-cta-form input::placeholder { color: #999; }
.mid-cta-form button, .mid-cta-form a { background: #ff6d00; color: #fff; padding: 14px 28px; border: none; border-radius: 6px; font-size: 15px; font-weight: bold; cursor: pointer; white-space: nowrap; transition: all 0.3s; text-decoration: none; }
.mid-cta-form button:hover, .mid-cta-form a:hover { background: #e65100; }
.form-note { font-size: 12px; opacity: 0.72; margin-top: 12px; }

/* Process */
.process-steps { display: flex; justify-content: space-between; position: relative; padding: 20px 0; }
.process-steps::before { content: ''; position: absolute; top: 50px; left: 10%; right: 10%; height: 3px; background: #e0e0e0; }
.process-step { text-align: center; position: relative; z-index: 1; flex: 1; }
.step-num { width: 50px; height: 50px; background: #1a73e8; color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: bold; margin: 0 auto 15px; }
.step-title { font-size: 15px; font-weight: bold; color: #333; margin-bottom: 8px; }
.step-desc { font-size: 13px; color: #666; padding: 0 10px; }

/* Industries */
.industries-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.industry-item { background: #fff; border-radius: 8px; padding: 30px 20px; text-align: center; box-shadow: 0 2px 10px rgba(0,0,0,0.05); transition: all 0.3s; cursor: pointer; }
.industry-item:hover { transform: translateY(-3px); box-shadow: 0 5px 20px rgba(0,0,0,0.1); }
.industry-icon { width: 56px; height: 56px; margin: 0 auto 12px; color: #1a73e8; background: #eaf2ff; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.industry-icon svg { width: 30px; height: 30px; fill: currentColor; }
.industry-item h4 { font-size: 16px; color: #333; }

/* Contact Quick */
.contact-quick { background: #1a237e; color: #fff; padding: 40px 0; text-align: center; }
.contact-quick h3 { font-size: 22px; margin-bottom: 10px; }
.contact-quick p { font-size: 16px; opacity: 0.8; margin-bottom: 20px; }
.contact-quick .btn-white { display: inline-block; }

/* Footer */
.footer { background: #1a1a2e; color: #ccc; padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
.footer-brand h3 { color: #fff; font-size: 22px; margin-bottom: 15px; }
.footer-brand p { font-size: 14px; line-height: 1.8; opacity: 0.7; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 15px; }
.footer-col a { display: block; font-size: 14px; color: #aaa; margin-bottom: 8px; transition: color 0.3s; }
.footer-col a:hover { color: #64b5f6; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; font-size: 13px; opacity: 0.6; }

/* Float Contact */
.float-contact { position: fixed; right: 20px; bottom: 20px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.float-btn { width: 55px; height: 55px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 3px 12px rgba(0,0,0,0.15); cursor: pointer; transition: all 0.3s; color: #fff; font-size: 22px; }
.float-btn svg { width: 24px; height: 24px; fill: currentColor; }
.float-btn:hover { transform: scale(1.1); }
.float-phone { background: #1a73e8; }
.float-wechat { background: #07c160; }
.float-top { background: #555; }

/* Cases Grid */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.case-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all 0.3s; }
.case-card:hover { transform: translateY(-3px); box-shadow: 0 5px 20px rgba(0,0,0,0.1); }
.case-img { height: 180px; background: #eaf2ff; color: #1a73e8; display: flex; align-items: center; justify-content: center; }
.case-img svg { width: 58px; height: 58px; fill: currentColor; }
.case-content { padding: 20px; }
.case-content h4 { font-size: 16px; margin-bottom: 8px; color: #222; }
.case-content p { font-size: 13px; color: #666; line-height: 1.7; }
.case-tag { display: inline-block; background: #e3f2fd; color: #1a73e8; font-size: 12px; padding: 2px 8px; border-radius: 3px; margin-top: 10px; }

/* About Page */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 30px; }
.stat-item { text-align: center; padding: 20px; background: #f8f9fa; border-radius: 8px; }
.stat-item .num { font-size: 32px; font-weight: bold; color: #1a73e8; }
.stat-item .label { font-size: 14px; color: #666; margin-top: 5px; }
.timeline { position: relative; padding: 20px 0; }
.timeline-item { display: flex; gap: 30px; margin-bottom: 30px; align-items: flex-start; }
.timeline-year { background: #1a73e8; color: #fff; padding: 8px 16px; border-radius: 4px; font-weight: bold; white-space: nowrap; }
.timeline-content h4 { font-size: 16px; color: #222; margin-bottom: 5px; }
.timeline-content p { font-size: 14px; color: #666; }

/* Contact Page */
.contact-section { background: #f8f9fa; padding: 60px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info h2 { font-size: 26px; margin-bottom: 20px; color: #222; }
.contact-item { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.contact-icon { width: 45px; height: 45px; background: #e3f2fd; color: #1a73e8; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.contact-icon svg { width: 22px; height: 22px; fill: currentColor; }
.contact-text h4 { font-size: 14px; color: #999; margin-bottom: 3px; }
.contact-text p { font-size: 16px; color: #333; font-weight: 500; }
.contact-form { background: #fff; border-radius: 8px; padding: 30px; box-shadow: 0 2px 15px rgba(0,0,0,0.06); }
.contact-form h3 { font-size: 20px; margin-bottom: 20px; color: #222; }
.form-group { margin-bottom: 15px; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 12px 15px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px; transition: border-color 0.3s; font-family: inherit; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: #1a73e8; }
.form-group textarea { height: 80px; resize: vertical; }
.btn-submit { width: 100%; background: #1a73e8; color: #fff; padding: 14px; border: none; border-radius: 4px; font-size: 16px; font-weight: bold; cursor: pointer; transition: background 0.3s; }
.btn-submit:hover { background: #1557b0; }

/* Lead/Video/Wechat Modals */
.lead-modal, .wechat-modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 3000; justify-content: center; align-items: center; }
.lead-modal-content { background: #fff; border-radius: 12px; padding: 35px 30px; width: 90%; max-width: 420px; position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.lead-modal-close { position: absolute; top: 10px; right: 15px; font-size: 24px; color: #999; cursor: pointer; line-height: 1; }
.lead-modal-close:hover { color: #333; }
.lead-modal-content h3 { font-size: 22px; color: #222; margin-bottom: 5px; }
.lead-modal-content .modal-desc { font-size: 14px; color: #666; margin-bottom: 20px; }
.lead-modal-content input, .lead-modal-content select, .lead-modal-content textarea { width: 100%; padding: 13px 15px; border: 1px solid #ddd; border-radius: 6px; font-size: 15px; margin-bottom: 12px; font-family: inherit; }
.lead-modal-content textarea { height: 72px; resize: vertical; }
.lead-modal-content .btn-modal-submit { width: 100%; background: #ff6d00; color: #fff; padding: 14px; border: none; border-radius: 6px; font-size: 16px; font-weight: bold; cursor: pointer; transition: all 0.3s; }
.lead-modal-content .btn-modal-submit:hover { background: #e65100; }
.lead-modal-content .modal-trust { font-size: 12px; color: #999; margin-top: 10px; text-align: center; }
.video-modal { display: none; position: fixed; inset: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.85); z-index: 3000; justify-content: center; align-items: center; }
.video-modal-content { position: relative; width: 90%; max-width: 800px; background: #000; border-radius: 8px; overflow: hidden; }
.video-close { position: absolute; top: -40px; right: 0; font-size: 32px; color: #fff; cursor: pointer; z-index: 10; line-height: 1; }
.video-close:hover { color: #ff6d00; }
.wechat-modal-content { background: #fff; border-radius: 12px; padding: 30px; text-align: center; max-width: 320px; position: relative; }
.wechat-modal-content h4 { font-size: 18px; margin-bottom: 10px; color: #222; }
.wechat-modal-content p { font-size: 14px; color: #666; margin-bottom: 15px; }
.wechat-modal-close { margin-top: 10px; background: #eee; border: none; padding: 8px 25px; border-radius: 4px; cursor: pointer; font-size: 14px; }
.mobile-bottom-cta { display: none; }

/* Responsive */
@media (max-width: 992px) {
    .platform-modules { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .system-overview { grid-template-columns: 1fr; }
    .detail-section { grid-template-columns: 1fr; }
    .advantages { grid-template-columns: 1fr; }
    .industries-grid { grid-template-columns: repeat(3, 1fr); }
    .products-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .about-intro { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .hero-quick-form { display: none; }
    .hero-content { flex-direction: column; }
    .mid-cta-form { flex-direction: column; }
}
@media (max-width: 768px) {
    .header-nav { display: none; }
    .hero { padding: 50px 0; }
    .hero h1 { font-size: 28px; }
    .hero-stats { flex-wrap: wrap; gap: 20px; }
    .hero-buttons { flex-direction: column; }
    .page-hero { padding: 40px 0; }
    .page-hero h1 { font-size: 26px; }
    .features-grid { grid-template-columns: 1fr; }
    .platform-modules { grid-template-columns: 1fr; }
    .process-steps { flex-direction: column; gap: 25px; }
    .process-steps::before { display: none; }
    .industries-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .header-tel, .btn-consult { display: none; }
    .float-contact { display: none; }
    .mobile-bottom-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 1200; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: rgba(255,255,255,0.7); box-shadow: 0 -4px 18px rgba(0,0,0,0.12); }
    .mobile-bottom-cta a, .mobile-bottom-cta button { border: none; padding: 13px 8px; font-size: 15px; font-weight: bold; color: #fff; text-align: center; cursor: pointer; }
    .mobile-bottom-cta a { background: #1a73e8; }
    .mobile-bottom-cta button { background: #ff6d00; }
    body { padding-bottom: 54px; }
}