/* ========================================
   赫舒生物科技官网 - 核心样式表
   Heshu Biotechnology Official Website
   ======================================== */

:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --primary-light: #e8f0fe;
  --accent-green: #34a853;
  --accent-green-light: #e6f4ea;
  --accent-purple: #7c3aed;
  --accent-purple-light: #f3f0ff;
  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-light: #80868b;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-section: #f1f3f4;
  --border: #dadce0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --font-main: 'PingFang SC','Source Han Sans CN','Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-main);color:var(--text-primary);background:var(--bg-white);line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}

.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-alt{background:var(--bg-light)}
.section-title{font-size:2.25rem;font-weight:700;text-align:center;margin-bottom:16px;line-height:1.3}
.section-subtitle{font-size:1.125rem;color:var(--text-secondary);text-align:center;max-width:640px;margin:0 auto 48px;line-height:1.8}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;border-radius:var(--radius-xl);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition);border:none;font-family:var(--font-main);letter-spacing:.5px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(26,115,232,.35)}
.btn-primary:hover{background:var(--primary-dark);box-shadow:0 6px 20px rgba(26,115,232,.45);transform:translateY(-1px);color:#fff}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}
.btn-green{background:var(--accent-green);color:#fff;box-shadow:0 4px 14px rgba(52,168,83,.35)}
.btn-green:hover{background:#2d9249;transform:translateY(-1px);color:#fff}
.btn-purple{background:var(--accent-purple);color:#fff;box-shadow:0 4px 14px rgba(124,58,237,.35)}
.btn-purple:hover{background:#6d28d9;transform:translateY(-1px);color:#fff}
.btn-white{background:#fff;color:var(--primary);box-shadow:var(--shadow-md)}
.btn-white:hover{box-shadow:var(--shadow-lg);transform:translateY(-1px);color:var(--primary-dark)}
.btn-sm{padding:10px 24px;font-size:.875rem}
.btn-group{display:flex;gap:16px;flex-wrap:wrap}

/* Animations */
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
.fade-in-left{opacity:0;transform:translateX(-30px);transition:opacity .6s ease,transform .6s ease}
.fade-in-left.visible{opacity:1;transform:translateX(0)}
.fade-in-right{opacity:0;transform:translateX(30px);transition:opacity .6s ease,transform .6s ease}
.fade-in-right.visible{opacity:1;transform:translateX(0)}

/* Navbar */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid transparent;transition:all var(--transition);height:72px}
.navbar.scrolled{border-bottom-color:var(--border);box-shadow:var(--shadow-sm)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:var(--text-primary);text-decoration:none}
.nav-logo:hover{color:var(--text-primary)}
.nav-logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--accent-green));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;font-weight:800}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:8px 16px;color:var(--text-secondary);font-size:.9375rem;font-weight:500;border-radius:var(--radius-sm);transition:all var(--transition)}
.nav-links a:hover,.nav-links a.active{color:var(--primary);background:var(--primary-light)}
.nav-cta{margin-left:8px}
.nav-cta .btn{padding:10px 24px;font-size:.875rem}

.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;z-index:1001}
.hamburger span{width:24px;height:2px;background:var(--text-primary);border-radius:2px;transition:all var(--transition)}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-menu{display:none;position:fixed;top:72px;left:0;right:0;bottom:0;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);z-index:999;padding:24px;flex-direction:column;gap:4px}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:14px 20px;color:var(--text-primary);font-size:1.0625rem;font-weight:500;border-radius:var(--radius-sm);transition:all var(--transition)}
.mobile-menu a:hover{background:var(--primary-light);color:var(--primary)}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;padding-top:72px;background:linear-gradient(135deg,#f0f6ff 0%,#fff 50%,#f0faf3 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(26,115,232,.06) 0%,transparent 70%);border-radius:50%}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(52,168,83,.05) 0%,transparent 70%);border-radius:50%}
.hero .container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-content{max-width:560px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:var(--primary-light);color:var(--primary);border-radius:var(--radius-xl);font-size:.8125rem;font-weight:600;margin-bottom:24px}
.hero-badge svg{width:16px;height:16px}
.hero h1{font-size:3.5rem;font-weight:800;line-height:1.15;margin-bottom:20px;letter-spacing:-.5px}
.hero h1 span{background:linear-gradient(135deg,var(--primary),var(--accent-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.1875rem;color:var(--text-secondary);margin-bottom:36px;line-height:1.8}
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
.hero-image-wrapper{width:100%;max-width:520px;aspect-ratio:1;border-radius:var(--radius-lg);overflow:hidden;background:linear-gradient(135deg,var(--primary-light),var(--accent-green-light))}
.hero-image-placeholder{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-light);font-size:.875rem;gap:12px}
.hero-image-placeholder svg{width:80px;height:80px;opacity:.4}
.hero-float-card{position:absolute;background:#fff;border-radius:var(--radius-md);padding:16px 20px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;animation:float 3s ease-in-out infinite}
.hero-float-card:nth-child(2){top:15%;right:-20px;animation-delay:-1s}
.hero-float-card:nth-child(3){bottom:20%;left:-20px;animation-delay:-2s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.float-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.float-icon.blue{background:var(--primary-light);color:var(--primary)}
.float-icon.green{background:var(--accent-green-light);color:var(--accent-green)}
.float-text small{display:block;font-size:.75rem;color:var(--text-light)}
.float-text strong{font-size:.9375rem;color:var(--text-primary)}

/* Stats */
.stats-bar{background:var(--bg-white);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.stat-item h3{font-size:2.5rem;font-weight:800;color:var(--primary);line-height:1.2}
.stat-item p{font-size:.9375rem;color:var(--text-secondary);margin-top:4px}

/* Digital Experience Cards */
.digital-experience-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.digital-card{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:all var(--transition);display:flex;flex-direction:column}
.digital-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.digital-card-header{padding:28px 28px 0;display:flex;align-items:flex-start;gap:16px}
.digital-card-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.5rem}
.digital-card-icon.purple{background:var(--accent-purple-light);color:var(--accent-purple)}
.digital-card-icon.green{background:var(--accent-green-light);color:var(--accent-green)}
.digital-card-header h3{font-size:1.25rem;font-weight:700;margin-bottom:4px}
.digital-card-header .badge{display:inline-block;padding:2px 10px;border-radius:var(--radius-xl);font-size:.75rem;font-weight:600;margin-left:8px}
.digital-card-header .badge.hot{background:#fef3c7;color:#d97706}
.digital-card-header .badge.new{background:#dbeafe;color:#2563eb}
.digital-card-body{padding:12px 28px 0;color:var(--text-secondary);font-size:.9375rem;line-height:1.7;flex:1}
.digital-card-features{display:flex;flex-wrap:wrap;gap:8px;padding:16px 28px 0}
.digital-card-features span{padding:4px 12px;border-radius:var(--radius-xl);font-size:.8125rem;font-weight:500;background:var(--bg-light);color:var(--text-secondary)}
.digital-card-footer{padding:20px 28px 28px;display:flex;gap:12px}

/* Product Cards */
.product-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.product-card{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:all var(--transition)}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--primary)}
.product-card-image{height:240px;background:var(--bg-light);display:flex;align-items:center;justify-content:center;color:var(--text-light);position:relative;overflow:hidden}
.product-card-image svg{width:60px;height:60px;opacity:.3}
.product-card-tag{position:absolute;top:16px;left:16px;padding:4px 12px;background:var(--primary);color:#fff;border-radius:var(--radius-xl);font-size:.75rem;font-weight:600}
.product-card-body{padding:28px}
.product-card-body h3{font-size:1.375rem;font-weight:700;margin-bottom:8px}
.product-card-body p{color:var(--text-secondary);font-size:.9375rem;margin-bottom:20px;line-height:1.7}
.product-features{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.product-features span{padding:4px 12px;background:var(--primary-light);color:var(--primary);border-radius:var(--radius-xl);font-size:.8125rem;font-weight:500}

/* Partners */
.partners-grid{display:flex;align-items:center;justify-content:center;gap:48px;flex-wrap:wrap}
.partner-item{display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 32px;background:var(--bg-white);border-radius:var(--radius-md);border:1px solid var(--border);transition:all var(--transition)}
.partner-item:hover{box-shadow:var(--shadow-md);border-color:var(--primary)}
.partner-logo{width:80px;height:40px;background:var(--bg-light);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--text-light)}
.partner-item span{font-size:.875rem;color:var(--text-secondary);font-weight:500}

/* Client Types */
.client-types-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.client-type-item{text-align:center;padding:32px 16px;background:var(--bg-white);border-radius:var(--radius-md);border:1px solid var(--border);transition:all var(--transition)}
.client-type-item:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.client-type-icon{width:48px;height:48px;margin:0 auto 12px;background:var(--primary-light);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--primary)}
.client-type-icon svg{width:24px;height:24px}
.client-type-item h4{font-size:.9375rem;font-weight:600}

/* News Cards */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:var(--bg-white);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);transition:all var(--transition)}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.news-card-image{height:180px;background:var(--bg-light);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.8125rem}
.news-card-body{padding:24px}
.news-card-date{font-size:.8125rem;color:var(--text-light);margin-bottom:8px}
.news-card-body h3{font-size:1.0625rem;font-weight:600;margin-bottom:8px;line-height:1.5}
.news-card-body p{font-size:.875rem;color:var(--text-secondary);line-height:1.7}

/* CTA */
.cta-section{background:linear-gradient(135deg,var(--primary) 0%,#1557b0 100%);padding:80px 0;text-align:center;color:#fff}
.cta-section h2{font-size:2.25rem;font-weight:700;margin-bottom:16px}
.cta-section p{font-size:1.125rem;opacity:.9;margin-bottom:32px;max-width:560px;margin-left:auto;margin-right:auto}

/* Footer */
.footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand h3{font-size:1.25rem;color:#fff;margin-bottom:12px;font-weight:700}
.footer-brand p{font-size:.875rem;line-height:1.8;margin-bottom:16px}
.footer-col h4{color:#fff;font-size:.9375rem;font-weight:600;margin-bottom:20px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:.875rem;padding:4px 0;transition:color var(--transition)}
.footer-col a:hover{color:#fff}
.footer-bottom{padding:24px 0;display:flex;justify-content:space-between;align-items:center;font-size:.8125rem;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.4)}
.footer-bottom a:hover{color:rgba(255,255,255,.8)}

/* Floating Chat Button */
.float-chat-btn{position:fixed;bottom:28px;right:28px;z-index:999;display:flex;align-items:center;gap:8px;padding:14px 24px;background:linear-gradient(135deg,var(--accent-purple),#6d28d9);color:#fff;border-radius:var(--radius-xl);box-shadow:0 6px 24px rgba(124,58,237,.4);cursor:pointer;transition:all var(--transition);font-size:.9375rem;font-weight:600;font-family:var(--font-main);border:none;text-decoration:none}
.float-chat-btn:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 10px 30px rgba(124,58,237,.5);color:#fff}
.float-chat-btn svg{width:20px;height:20px}
.float-chat-pulse{position:absolute;top:-2px;right:-2px;width:14px;height:14px;background:#ef4444;border-radius:50%;border:2px solid #fff;animation:pulse-ring 2s ease infinite}
@keyframes pulse-ring{0%{box-shadow:0 0 0 0 rgba(239,68,68,.5)}70%{box-shadow:0 0 0 8px rgba(239,68,68,0)}100%{box-shadow:0 0 0 0 rgba(239,68,68,0)}}

/* Page Hero */
.page-hero{padding-top:140px;padding-bottom:60px;background:linear-gradient(135deg,#f0f6ff 0%,#fff 100%);text-align:center}
.page-hero h1{font-size:2.75rem;font-weight:800;margin-bottom:16px}
.page-hero p{font-size:1.125rem;color:var(--text-secondary);max-width:600px;margin:0 auto}

/* About */
.about-hero{padding-top:140px;padding-bottom:80px;background:linear-gradient(135deg,#f0f6ff 0%,#fff 100%);text-align:center}
.about-hero h1{font-size:2.75rem;font-weight:800;margin-bottom:16px}
.about-hero p{font-size:1.125rem;color:var(--text-secondary);max-width:600px;margin:0 auto}
.about-content{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-text h2{font-size:1.75rem;font-weight:700;margin-bottom:16px}
.about-text p{color:var(--text-secondary);margin-bottom:16px;line-height:1.8}
.about-image{border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-light);min-height:360px;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.875rem}

/* Timeline */
.timeline{position:relative;padding:20px 0}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--border);transform:translateX(-50%)}
.timeline-item{display:flex;align-items:flex-start;margin-bottom:48px;position:relative}
.timeline-item:nth-child(odd){flex-direction:row;padding-right:calc(50% + 30px);text-align:right}
.timeline-item:nth-child(even){flex-direction:row-reverse;padding-left:calc(50% + 30px)}
.timeline-dot{position:absolute;left:50%;top:4px;width:16px;height:16px;background:var(--primary);border-radius:50%;transform:translateX(-50%);border:3px solid var(--bg-white);box-shadow:0 0 0 3px var(--primary-light)}
.timeline-content{background:var(--bg-white);padding:20px 24px;border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.timeline-content h4{font-size:1rem;font-weight:700;color:var(--primary);margin-bottom:4px}
.timeline-content p{font-size:.875rem;color:var(--text-secondary);line-height:1.7}

/* Product Detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;margin-bottom:60px}
.product-gallery{border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-light);min-height:400px;display:flex;align-items:center;justify-content:center;color:var(--text-light);position:relative}
.product-info h2{font-size:2rem;font-weight:800;margin-bottom:16px}
.product-info p{color:var(--text-secondary);margin-bottom:24px;line-height:1.8}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:24px}
.spec-table th,.spec-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);font-size:.9375rem}
.spec-table th{color:var(--text-light);font-weight:500;width:120px}
.spec-table td{color:var(--text-primary);font-weight:500}
.variant-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.variant-card{background:var(--bg-white);border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);text-align:center;transition:all var(--transition)}
.variant-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary)}
.variant-card-image{height:200px;background:var(--bg-light);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.8125rem}
.variant-card-body{padding:20px}
.variant-card-body h4{font-size:1rem;font-weight:600;margin-bottom:4px}
.variant-card-body p{font-size:.8125rem;color:var(--text-secondary)}

/* Solutions */
.solution-card{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:60px;padding:40px;background:var(--bg-white);border-radius:var(--radius-lg);border:1px solid var(--border);transition:all var(--transition)}
.solution-card:hover{box-shadow:var(--shadow-md)}
.solution-card:nth-child(even){direction:rtl}
.solution-card:nth-child(even)>*{direction:ltr}
.solution-image{border-radius:var(--radius-md);overflow:hidden;background:var(--bg-light);min-height:280px;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.875rem}
.solution-content h3{font-size:1.5rem;font-weight:700;margin-bottom:12px;color:var(--primary)}
.solution-content h4{font-size:1rem;font-weight:600;margin-bottom:8px;margin-top:16px}
.solution-content p{color:var(--text-secondary);font-size:.9375rem;line-height:1.7;margin-bottom:8px}
.solution-content ul{padding-left:20px}
.solution-content ul li{color:var(--text-secondary);font-size:.9375rem;line-height:1.8;position:relative;padding-left:8px}
.solution-content ul li::before{content:'•';color:var(--primary);font-weight:bold;position:absolute;left:-12px}

/* News */
.news-tabs{display:flex;gap:8px;margin-bottom:40px;justify-content:center}
.news-tab{padding:8px 24px;border-radius:var(--radius-xl);font-size:.9375rem;font-weight:500;cursor:pointer;transition:all var(--transition);border:1px solid var(--border);background:var(--bg-white);color:var(--text-secondary)}
.news-tab:hover,.news-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.news-list-item{display:flex;gap:24px;padding:24px 0;border-bottom:1px solid var(--border);transition:all var(--transition)}
.news-list-item:hover{background:var(--bg-light);padding-left:16px;padding-right:16px;border-radius:var(--radius-sm)}
.news-list-thumb{width:200px;height:130px;flex-shrink:0;background:var(--bg-light);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.75rem}
.news-list-content h3{font-size:1.125rem;font-weight:600;margin-bottom:8px;line-height:1.5}
.news-list-content p{font-size:.875rem;color:var(--text-secondary);line-height:1.7}
.news-meta{display:flex;gap:16px;margin-top:8px;font-size:.8125rem;color:var(--text-light)}

/* FAQ */
.faq-hero{padding-top:140px;padding-bottom:60px;background:linear-gradient(135deg,#f0f6ff 0%,#fff 100%);text-align:center}
.faq-hero h1{font-size:2.75rem;font-weight:800;margin-bottom:16px}
.faq-hero p{color:var(--text-secondary);max-width:600px;margin:0 auto}
.faq-brand-def{background:var(--primary-light);border-left:4px solid var(--primary);padding:20px 24px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin-bottom:48px;font-size:.9375rem;color:var(--text-secondary);line-height:1.8}
.faq-brand-def strong{color:var(--primary)}
.faq-category{margin-bottom:48px}
.faq-category h2{font-size:1.375rem;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid var(--primary-light)}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;transition:all var(--transition)}
.faq-item:hover{border-color:var(--primary)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;cursor:pointer;font-weight:600;font-size:1rem;color:var(--text-primary);background:var(--bg-white);transition:background var(--transition)}
.faq-question:hover{background:var(--bg-light)}
.faq-question svg{width:20px;height:20px;color:var(--text-light);transition:transform var(--transition);flex-shrink:0}
.faq-item.open .faq-question svg{transform:rotate(180deg);color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease}
.faq-item.open .faq-answer{max-height:600px;padding:0 24px 20px}
.faq-answer p{color:var(--text-secondary);font-size:.9375rem;line-height:1.8}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-info-card{display:flex;gap:16px;padding:20px;background:var(--bg-light);border-radius:var(--radius-sm);margin-bottom:16px}
.contact-info-icon{width:44px;height:44px;background:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}
.contact-info-icon svg{width:20px;height:20px}
.contact-info-text h4{font-size:.9375rem;font-weight:600;margin-bottom:4px}
.contact-info-text p{font-size:.875rem;color:var(--text-secondary)}
.contact-form{background:var(--bg-white);padding:36px;border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.contact-form h3{font-size:1.25rem;font-weight:700;margin-bottom:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.875rem;font-weight:600;margin-bottom:6px;color:var(--text-primary)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9375rem;font-family:var(--font-main);color:var(--text-primary);transition:border-color var(--transition);background:var(--bg-white)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,115,232,.1)}
.form-group textarea{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.map-placeholder{width:100%;height:300px;background:var(--bg-light);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:.875rem;margin-top:24px}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:.8125rem}
.breadcrumb a{color:var(--text-light)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:var(--text-light);margin:0 8px}
.breadcrumb strong{color:var(--text-primary)}

/* Download Card */
.download-card{display:flex;align-items:center;gap:20px;padding:24px;background:var(--bg-light);border-radius:var(--radius-md);border:1px solid var(--border);margin-bottom:16px;transition:all var(--transition)}
.download-card:hover{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.download-icon{width:48px;height:48px;background:var(--primary);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}
.download-info{flex:1}
.download-info h4{font-size:1rem;font-weight:600;margin-bottom:2px}
.download-info p{font-size:.8125rem;color:var(--text-light)}

/* Product section divider */
.section-divider{display:flex;align-items:center;gap:16px;margin:60px 0 40px}
.section-divider::before,.section-divider::after{content:'';flex:1;height:1px;background:var(--border)}
.section-divider h2{font-size:1.5rem;font-weight:700;white-space:nowrap;color:var(--text-primary)}

/* Agent product card */
.agent-product-card{background:var(--bg-white);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;transition:all var(--transition)}
.agent-product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--accent-green)}
.agent-product-header{background:linear-gradient(135deg,#f0faf3,#e6f4ea);padding:28px;display:flex;align-items:center;gap:20px}
.agent-product-logo{width:64px;height:64px;background:var(--accent-green);border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;font-weight:800;flex-shrink:0}
.agent-product-header h3{font-size:1.25rem;font-weight:700}
.agent-product-header p{font-size:.875rem;color:var(--text-secondary);margin-top:2px}
.agent-product-body{padding:24px 28px}
.agent-product-body p{color:var(--text-secondary);font-size:.9375rem;line-height:1.7;margin-bottom:16px}
.agent-product-specs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.agent-product-spec{padding:12px;background:var(--bg-light);border-radius:var(--radius-sm)}
.agent-product-spec small{display:block;font-size:.75rem;color:var(--text-light);margin-bottom:2px}
.agent-product-spec strong{font-size:.9375rem;color:var(--text-primary)}

/* Responsive */
@media(max-width:1024px){
  .hero .container{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero-content{max-width:100%}
  .hero h1{font-size:2.75rem}
  .btn-group{justify-content:center}
  .hero-visual{order:-1}
  .hero-image-wrapper{max-width:400px;margin:0 auto}
  .hero-float-card{display:none}
  .product-cards{grid-template-columns:1fr}
  .client-types-grid{grid-template-columns:repeat(3,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .about-content{grid-template-columns:1fr}
  .product-detail{grid-template-columns:1fr}
  .solution-card{grid-template-columns:1fr;direction:ltr}
  .solution-card:nth-child(even){direction:ltr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .digital-experience-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .section-title{font-size:1.75rem}
  .nav-links,.nav-cta{display:none}
  .hamburger{display:flex}
  .hero h1{font-size:2.25rem}
  .hero-desc{font-size:1rem}
  .stats-grid{grid-template-columns:repeat(3,1fr);gap:20px}
  .stat-item h3{font-size:1.75rem}
  .client-types-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .variant-grid{grid-template-columns:1fr}
  .timeline::before{left:20px}
  .timeline-item:nth-child(odd),.timeline-item:nth-child(even){padding-left:50px;padding-right:0;text-align:left;flex-direction:row}
  .timeline-dot{left:20px}
  .page-hero h1,.about-hero h1,.faq-hero h1{font-size:2rem}
  .form-row{grid-template-columns:1fr}
  .news-list-item{flex-direction:column}
  .news-list-thumb{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .partners-grid{gap:24px}
  .float-chat-btn span.chat-text{display:none}
  .float-chat-btn{padding:14px;border-radius:50%}
}
@media(max-width:480px){
  .hero h1{font-size:1.875rem}
  .stats-grid{grid-template-columns:1fr;gap:24px}
  .btn-group{flex-direction:column;align-items:stretch}
  .btn-group .btn{width:100%}
  .agent-product-specs{grid-template-columns:1fr}
}