@charset "UTF-8";:root{--primary: #0d4f8b;--primary-dark: #0a3a6a;--primary-light: #1a6db5;--secondary: #00b4d8;--accent: #b75c09;--accent-hover: #e07518;--dark: #1a1a2e;--dark-light: #2d2d44;--gray-100: #f8fafc;--gray-200: #eef2f6;--gray-300: #dde4eb;--gray-400: #b0bec5;--gray-500: #607782;--gray-600: #546e7a;--gray-700: #37474f;--gray-800: #263238;--white: #ffffff;--shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);--shadow: 0 4px 16px rgba(0, 0, 0, 0.1);--shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);--shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);--radius-sm: clamp(4px, 0.6vw, 6px);--radius: clamp(8px, 0.8vw, 10px);--radius-lg: clamp(12px, 1vw, 16px);--radius-xl: clamp(16px, 1.5vw, 24px);--transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);--transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);--font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, -apple-system, sans-serif;--font-title: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, -apple-system, sans-serif;--max-width: 1280px;--header-height: clamp(64px, 8vw, 80px);--header-height-mobile: clamp(56px, 14vw, 64px);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px);--touch-min: clamp(44px, 10vw, 48px)}
@media (prefers-color-scheme: dark){:root{--dark: #e2e8f0;--dark-light: #cbd5e1;--gray-800: #f1f5f9;--gray-700: #e2e8f0;--gray-600: #cbd5e1;--gray-500: #94a3b8;--gray-400: #64748b;--gray-300: #475569;--gray-200: #334155;--gray-100: #1e293b;--white: #0f172a;--primary: #60a5fa;--primary-dark: #93c5fd;--primary-light: #3b82f6;--secondary: #38bdf8;--shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);--shadow: 0 4px 16px rgba(0, 0, 0, 0.4);--shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);--shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);color-scheme: dark}
}
*{margin: 0;padding: 0;box-sizing: border-box}
html{scroll-behavior: smooth;font-size: 16px;-webkit-text-size-adjust: 100%}
body{font-family: var(--font-main);color: var(--gray-800);line-height: 1.7;background: var(--white);overflow-x: hidden;-webkit-font-smoothing: antialiased}
.product-card-image img, .case-image img, .news-card-img img, .about-page-img img, .contact-info-icon img, .float-btn img, .subcat-card-img img, .about-value-icon img, .hero-float-icon img, .ap-feature-icon img, .adv-icon-wrap{display: block;max-width: 100%;max-height: 100%;object-fit: contain}
.float-btn > img{pointer-events: none}
.adv-icon-wrap{display: block !important;width: 64px !important;height: 64px !important;margin: 0 auto 20px !important;border-radius: 20px;font-size: 0 !important}
.footer-contact-icon{display: inline-block !important;vertical-align: middle}
img{max-width: 100%;height: auto;display: block}
a{text-decoration: none;color: inherit;transition: color var(--transition)}
ul, ol{list-style: none}
.container{width: 100%;max-width: var(--max-width);margin: 0 auto;padding: 0 24px}
.section{padding: 80px 0}
.section-header{text-align: center;margin-bottom: 56px}
.section-subtitle{font-size: 15px;color: var(--primary);text-transform: uppercase;letter-spacing: 3px;font-weight: 600;margin-bottom: 12px;display: block}
.section-title{font-size: 36px;font-weight: 700;color: var(--dark);margin-bottom: 16px;position: relative;display: inline-block}
.section-title::after{content: '';position: absolute;bottom: -10px;left: 50%;transform: translateX(-50%);width: 60px;height: 3px;background: linear-gradient(90deg, var(--secondary), var(--primary));border-radius: 3px}
.section-desc{font-size: 16px;color: var(--gray-500);max-width: 640px;margin: 24px auto 0;line-height: 1.8}
.text-center{text-align: center}
.btn{display: inline-flex;align-items: center;justify-content: center;gap: 8px;padding: 14px 32px;border-radius: 50px;font-size: 15px;font-weight: 600;cursor: pointer;transition: all var(--transition);border: none;outline: none;white-space: nowrap;letter-spacing: 0.5px}
.btn-primary{background: linear-gradient(135deg, var(--secondary), var(--primary-light));color: var(--white);box-shadow: 0 4px 15px rgba(0, 180, 216, 0.35)}
.btn-primary:hover{transform: translateY(-2px);box-shadow: 0 8px 25px rgba(0, 180, 216, 0.45)}
.btn-accent{background: linear-gradient(135deg, var(--accent), #b85e09);color: var(--white);box-shadow: 0 4px 15px rgba(244, 132, 31, 0.35)}
.btn-accent:hover{transform: translateY(-2px);box-shadow: 0 8px 25px rgba(244, 132, 31, 0.45)}
.btn-outline{background: transparent;color: var(--primary);border: 2px solid var(--primary)}
.btn-outline:hover{background: var(--primary);color: var(--white);transform: translateY(-2px)}
.btn-white{background: var(--white);color: var(--primary);box-shadow: var(--shadow)}
.btn-white:hover{transform: translateY(-2px);box-shadow: var(--shadow-lg)}
.btn-sm{padding: 10px 24px;font-size: 13px}
.btn-lg{padding: 16px 40px;font-size: 17px}
.header{position: fixed;top: 0;left: 0;right: 0;z-index: 1000;height: var(--header-height);background: rgba(255, 255, 255, 0.97);backdrop-filter: blur(10px);-webkit-backdrop-filter: blur(10px);box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);transition: all var(--transition)}
.header.scrolled{box-shadow: var(--shadow)}
.header-inner{display: flex;align-items: center;justify-content: space-between;height: 100%;max-width: var(--max-width);margin: 0 auto;padding: 0 24px}
.logo{display: flex;align-items: center;gap: 10px;flex-shrink: 0}
.logo-icon{width: 48px;height: 48px;background: linear-gradient(135deg, var(--secondary), var(--primary-light));border-radius: var(--radius);display: flex;align-items: center;justify-content: center;color: var(--white);font-size: 13px;font-weight: 700;letter-spacing: 1px;flex-shrink: 0}
.logo-text{display: flex;flex-direction: column}
.logo-name{font-size: 20px;font-weight: 700;color: var(--dark);line-height: 1.3}
.logo-sub{font-size: 11px;color: var(--gray-500);letter-spacing: 2px;text-transform: uppercase}
.nav-list{display: flex;align-items: center;gap: 6px}
.nav-item{position: relative}
.nav-link{display: flex;align-items: center;gap: 4px;padding: 10px 16px;font-size: 15px;font-weight: 500;color: var(--gray-700);border-radius: var(--radius);transition: all var(--transition);white-space: nowrap}
.nav-link:hover, .nav-link.active{color: var(--primary);background: rgba(13, 79, 139, 0.06)}
.nav-link .arrow{font-size: 10px;transition: transform var(--transition)}
.nav-item:hover .arrow{transform: rotate(180deg)}
.dropdown{position: absolute;top: 100%;left: 50%;transform: translateX(-50%) translateY(10px);background: var(--white);border-radius: var(--radius-lg);box-shadow: var(--shadow-xl);min-width: 220px;padding: 8px 0;opacity: 0;visibility: hidden;transition: all var(--transition);border: 1px solid var(--gray-200)}
.nav-item:hover .dropdown{opacity: 1;visibility: visible;transform: translateX(-50%) translateY(0)}
.nav-item:focus-within .dropdown{opacity: 1;visibility: visible;transform: translateX(-50%) translateY(0)}
.dropdown-link{display: block;padding: 10px 20px;font-size: 14px;color: var(--gray-700);transition: all var(--transition);white-space: nowrap}
.dropdown-group{display: block;padding: 8px 20px 4px;font-size: 12px;font-weight: 600;letter-spacing: .5px;color: var(--gray-500);white-space: nowrap}
.dropdown-link:hover{color: var(--primary);background: var(--gray-100);padding-left: 24px}
.header-actions{display: flex;align-items: center;gap: 12px}
.header-tel{display: flex;align-items: center;gap: 8px;color: var(--primary);font-weight: 600;font-size: 15px}
.hamburger{display: none;flex-direction: column;gap: 5px;cursor: pointer;padding: 8px;background: none;border: none;z-index: 1001}
.hamburger span{display: block;width: 26px;height: 2.5px;background: var(--dark);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-nav{position: fixed;top: 0;right: -100%;width: 300px;max-width: 85vw;height: 100vh;background: var(--white);z-index: 999;padding: 90px 24px 40px;box-shadow: var(--shadow-xl);visibility: hidden;transition: right var(--transition), visibility 0s linear 0.3s;overflow-y: auto}
.mobile-nav.active{right: 0;visibility: visible;transition: right var(--transition), visibility 0s linear 0s}
.mobile-nav-overlay{position: fixed;inset: 0;background: rgba(0, 0, 0, 0.5);z-index: 998;opacity: 0;visibility: hidden;transition: all var(--transition)}
.mobile-nav-overlay.active{opacity: 1;visibility: visible}
.mobile-nav-link{display: block;padding: 14px 0;font-size: 16px;font-weight: 500;color: var(--gray-700);border-bottom: 1px solid var(--gray-200);transition: color var(--transition)}
.mobile-nav-link:hover{color: var(--primary)}
.mobile-sub-toggle{display: flex;align-items: center;justify-content: space-between;padding: 14px 0;font-size: 16px;font-weight: 500;color: var(--gray-700);border-bottom: 1px solid var(--gray-200);cursor: pointer;background: none;border-left: none;border-right: none;border-top: none;width: 100%;text-align: left;font-family: inherit}
.mobile-sub-toggle .arrow{font-size: 10px;transition: transform var(--transition)}
.mobile-sub-toggle.open .arrow{transform: rotate(180deg)}
.mobile-sub-menu{max-height: 0;overflow: hidden;transition: max-height var(--transition)}
.mobile-sub-menu.open{max-height: 500px}
.mobile-sub-link{display: block;padding: 10px 20px;font-size: 14px;color: var(--gray-600);transition: color var(--transition)}
.mobile-sub-link:hover{color: var(--primary)}
.hero{position: relative;min-height: 100vh;display: flex;align-items: center;background: linear-gradient(135deg, #0a1628 0%, #0d2a4a 40%, #0a3a6a 70%, #0d4f8b 100%);overflow: hidden;padding-top: var(--header-height)}
.hero-bg-pattern{position: absolute;inset: 0;background: radial-gradient(ellipse at 20% 50%, rgba(0, 180, 216, 0.15) 0%, transparent 50%), radial-gradient(ellipse at 80% 20%, rgba(244, 132, 31, 0.1) 0%, transparent 50%), radial-gradient(ellipse at 60% 80%, rgba(0, 180, 216, 0.1) 0%, transparent 50%)}
.hero-bg-grid{position: absolute;inset: 0;background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);background-size: 60px 60px}
.hero-content{position: relative;z-index: 2;display: grid;grid-template-columns: 1fr 1fr;gap: 60px;align-items: center;max-width: var(--max-width);margin: 0 auto;padding: 60px 24px;width: 100%}
.hero-text{color: var(--white)}
.hero-badge{display: inline-flex;align-items: center;gap: 8px;background: rgba(255, 255, 255, 0.1);border: 1px solid rgba(255, 255, 255, 0.2);padding: 8px 18px;border-radius: 50px;font-size: 13px;letter-spacing: 2px;margin-bottom: 28px;backdrop-filter: blur(10px)}
.hero-title{font-size: 52px;font-weight: 800;line-height: 1.15;margin-bottom: 24px}
.hero-title span{background: linear-gradient(90deg, var(--secondary), #5ce1e6);-webkit-background-clip: text;-webkit-text-fill-color: transparent;background-clip: text}
.hero-desc{font-size: 17px;color: rgba(255, 255, 255, 0.75);line-height: 1.9;margin-bottom: 36px;max-width: 520px}
.hero-btns{display: flex;gap: 16px;flex-wrap: wrap}
.hero-stats{display: flex;gap: 40px;margin-top: 48px}
.hero-stat{text-align: center}
.hero-stat-num{font-size: 32px;font-weight: 800;background: linear-gradient(135deg, var(--secondary), #90e0ef);-webkit-background-clip: text;-webkit-text-fill-color: transparent;background-clip: text}
.hero-stat-label{font-size: 13px;color: rgba(255, 255, 255, 0.6);margin-top: 4px}
.hero-visual{position: relative;display: flex;align-items: center;justify-content: center}
.hero-img-wrap{position: relative;width: 100%;max-width: 520px;aspect-ratio: 4/3;border-radius: var(--radius-xl);overflow: hidden;box-shadow: 0 20px 80px rgba(0, 0, 0, 0.4);background: linear-gradient(135deg, #1a3a5c, #0d2a4a);display: flex;align-items: center;justify-content: center}
.hero-float-card{position: absolute;background: rgba(255, 255, 255, 0.95);backdrop-filter: blur(10px);padding: 16px 20px;border-radius: var(--radius-lg);box-shadow: var(--shadow-lg);display: flex;align-items: center;gap: 12px}
.hero-float-card.card-1{top: 10%;right: -10px;animation: floatCard 4s ease-in-out infinite}
.hero-float-card.card-2{bottom: 15%;left: -10px;animation: floatCard 4s ease-in-out 1s infinite}
.hero-float-icon{width: 40px;height: 40px;border-radius: var(--radius);background: linear-gradient(135deg, var(--secondary), var(--primary-light));display: flex;align-items: center;justify-content: center;color: var(--white);font-size: 18px}
.hero-float-info .hf-num{font-weight: 700;color: var(--dark);font-size: 15px}
.hero-float-info .hf-label{font-size: 12px;color: var(--gray-500)}
@keyframes floatCard{0%, 100%{transform: translateY(0)}
50%{transform: translateY(-12px)}
}
.hero-scroll{position: absolute;bottom: 30px;left: 50%;transform: translateX(-50%);z-index: 2;display: flex;flex-direction: column;align-items: center;gap: 8px;color: rgba(255, 255, 255, 0.5);font-size: 12px;letter-spacing: 2px;animation: scrollBounce 2s ease-in-out infinite}
.hero-scroll-line{width: 1px;height: 40px;background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent)}
@keyframes scrollBounce{0%, 100%{transform: translateX(-50%) translateY(0)}
50%{transform: translateX(-50%) translateY(8px)}
}
.about-preview{background: var(--white)}
.ap-grid{display: grid;grid-template-columns: 1fr 1fr;gap: 60px;align-items: center}
.ap-image-wrap{position: relative}
.ap-image{width: 100%;border-radius: var(--radius-xl);aspect-ratio: 4/3;background: linear-gradient(135deg, #e8f4f8, #d0e8f0);display: flex;align-items: center;justify-content: center;overflow: hidden}
.ap-experience{position: absolute;bottom: -20px;right: -20px;background: var(--accent);color: var(--white);padding: 24px 20px;border-radius: var(--radius-lg);text-align: center;box-shadow: var(--shadow-lg)}
.ap-exp-num{font-size: 36px;font-weight: 800;line-height: 1}
.ap-exp-label{font-size: 13px;opacity: 0.9;margin-top: 6px}
.ap-content .section-title{text-align: left}
.ap-content .section-title::after{left: 0;transform: none}
.ap-text{font-size: 15px;color: var(--gray-600);line-height: 1.9;margin-bottom: 20px}
.ap-features{display: grid;grid-template-columns: 1fr 1fr;gap: 16px;margin-bottom: 28px}
.ap-feature{display: flex;align-items: center;gap: 10px}
.ap-feature-icon{width: 36px;height: 36px;border-radius: 50%;background: rgba(0, 180, 216, 0.1);display: flex;align-items: center;justify-content: center;color: var(--secondary);font-size: 16px;flex-shrink: 0}
.ap-feature-text{font-size: 14px;color: var(--gray-700);font-weight: 500}
.products-preview{background: var(--gray-100)}
.products-grid{display: grid;grid-template-columns: repeat(3, 1fr);gap: 28px}
.product-card{background: var(--white);border-radius: var(--radius-lg);overflow: hidden;box-shadow: var(--shadow-sm);transition: all var(--transition);border: 1px solid var(--gray-200);display: flex;flex-direction: column}
.product-card:hover{transform: translateY(-8px);box-shadow: var(--shadow-xl);border-color: transparent}
.product-card-image{aspect-ratio: 16/10;background: linear-gradient(135deg, #e8f4f8, #d0e8f0);display: flex;align-items: center;justify-content: center;position: relative;overflow: hidden}
.product-card-tag{position: absolute;top: 12px;left: 12px;background: var(--accent);color: var(--white);padding: 4px 12px;border-radius: 20px;font-size: 12px;font-weight: 600}
.product-card-body{padding: 24px;flex: 1;display: flex;flex-direction: column}
.product-card-title{font-size: 18px;font-weight: 700;color: var(--dark);margin-bottom: 8px}
.product-card-desc{font-size: 13px;color: var(--gray-500);line-height: 1.7;margin-bottom: 16px;flex: 1}
.product-card-tags{display: flex;flex-wrap: wrap;gap: 6px;margin-bottom: 16px}
.product-card-tag-item{font-size: 11px;padding: 4px 10px;background: var(--gray-100);border-radius: 20px;color: var(--gray-600)}
.product-card-link{display: inline-flex;align-items: center;gap: 6px;font-size: 14px;font-weight: 600;color: var(--primary);transition: gap var(--transition)}
.product-card-link:hover{gap: 10px}
.advantages{background: var(--white);position: relative}
.advantages-bg{position: absolute;inset: 0;background: radial-gradient(ellipse at 30% 20%, rgba(0, 180, 216, 0.04) 0%, transparent 50%), radial-gradient(ellipse at 70% 80%, rgba(13, 79, 139, 0.04) 0%, transparent 50%)}
.adv-grid{display: grid;grid-template-columns: repeat(4, 1fr);gap: 24px;position: relative;z-index: 1}
.adv-card{text-align: center;padding: 36px 24px;border-radius: var(--radius-lg);transition: all var(--transition);background: var(--white);border: 1px solid transparent}
.adv-card:hover{border-color: var(--gray-200);box-shadow: var(--shadow);transform: translateY(-4px)}
.adv-icon-wrap{width: 72px;height: 72px;margin: 0 auto 20px;border-radius: 20px;display: flex;align-items: center;justify-content: center;font-size: 32px;position: relative}
.adv-card:nth-child(1) .adv-icon-wrap{background: rgba(0, 180, 216, 0.1);color: var(--secondary)}
.adv-card:nth-child(2) .adv-icon-wrap{background: rgba(244, 132, 31, 0.1);color: var(--accent)}
.adv-card:nth-child(3) .adv-icon-wrap{background: rgba(13, 79, 139, 0.1);color: var(--primary)}
.adv-card:nth-child(4) .adv-icon-wrap{background: rgba(16, 185, 129, 0.1);color: #10b981}
.adv-card-title{font-size: 17px;font-weight: 700;color: var(--dark);margin-bottom: 8px}
.adv-card-desc{font-size: 13px;color: var(--gray-500);line-height: 1.7}
.cases-preview{background: var(--gray-100)}
.cases-grid{display: grid;grid-template-columns: repeat(3, 1fr);gap: 24px}
.case-card{display: block;color: inherit;text-decoration: none;cursor: pointer;border-radius: var(--radius-lg);overflow: hidden;background: var(--white);box-shadow: var(--shadow-sm);transition: all var(--transition)}
.case-card:hover{transform: translateY(-6px);box-shadow: var(--shadow-lg)}
.case-image{aspect-ratio: 4/3;background: linear-gradient(135deg, #dbeafe, #bfdbfe);display: flex;align-items: center;justify-content: center;font-size: 48px;position: relative}
.case-category{position: absolute;top: 12px;right: 12px;background: rgba(0, 0, 0, 0.6);color: var(--white);padding: 4px 12px;border-radius: 20px;font-size: 12px}
.case-body{padding: 20px}
.case-title{font-size: 16px;font-weight: 700;color: var(--dark);margin-bottom: 6px}
.case-desc{font-size: 13px;color: var(--gray-500);line-height: 1.6}
.partners{background: var(--gray-100);padding: 70px 0}
.brands-grid{display: grid;grid-template-columns: repeat(6, 1fr);gap: 16px;max-width: 960px;margin: 0 auto}
.brand-item{display: flex;align-items: center;justify-content: center;padding: 18px 16px;background: var(--white);border-radius: var(--radius);font-size: 16px;font-weight: 600;color: var(--gray-700);letter-spacing: 1px;box-shadow: var(--shadow-sm);transition: all var(--transition);cursor: default}
.brand-item:hover{color: var(--primary);box-shadow: var(--shadow);transform: translateY(-2px)}
@media (max-width: 768px){.brands-grid{grid-template-columns: repeat(3, 1fr);gap: 10px}
.brand-item{padding: 14px 10px;font-size: 14px}
}
@media (max-width: 480px){.brands-grid{grid-template-columns: repeat(2, 1fr);gap: 8px}
.brand-item{padding: 12px 8px;font-size: 12px}
}
.cta-section{background: linear-gradient(135deg, var(--primary-dark), var(--primary));padding: 70px 0;position: relative;overflow: hidden}
.cta-section::before{content: '';position: absolute;inset: 0;background: radial-gradient(ellipse at 30% 50%, rgba(0, 180, 216, 0.15) 0%, transparent 60%)}
.cta-content{position: relative;z-index: 1;text-align: center;color: var(--white)}
.cta-title{font-size: 32px;font-weight: 700;margin-bottom: 12px}
.cta-desc{font-size: 16px;opacity: 0.8;margin-bottom: 28px}
.footer{background: var(--dark);color: rgba(255, 255, 255, 0.7);padding: 60px 0 0}
.footer-grid{display: grid;grid-template-columns: 2fr 1fr 1fr 1.5fr;gap: 40px;padding-bottom: 40px}
.footer-about .logo-name{color: var(--white)}
.footer-about .logo-sub{color: rgba(255, 255, 255, 0.5)}
.footer-desc{font-size: 13px;line-height: 1.8;margin-top: 16px;color: rgba(255, 255, 255, 0.55)}
.footer-title{font-size: 16px;font-weight: 700;color: var(--white);margin-bottom: 20px}
.footer-links li{margin-bottom: 10px}
.footer-links a{font-size: 13px;color: rgba(255, 255, 255, 0.55);transition: all var(--transition)}
.footer-links a:hover{color: var(--secondary);padding-left: 4px}
.footer-contact-item{display: flex;gap: 10px;margin-bottom: 14px;font-size: 13px;color: rgba(255, 255, 255, 0.55)}
.footer-contact-icon{color: var(--secondary);flex-shrink: 0;margin-top: 3px}
.footer-qr{text-align: center}
.footer-qr-label{font-size: 12px;color: rgba(255, 255, 255, 0.5)}
.footer-bottom{border-top: 1px solid rgba(255, 255, 255, 0.08);padding: 20px 0;display: flex;justify-content: space-between;align-items: center;flex-wrap: wrap;gap: 10px;font-size: 12px;color: rgba(255, 255, 255, 0.55)}
.footer-bottom a{color: rgba(255, 255, 255, 0.55);transition: color var(--transition)}
.footer-bottom a:hover{color: var(--secondary)}
.float-btns{position: fixed;right: 20px;bottom: 80px;z-index: 999;display: flex;flex-direction: column;gap: 12px}
/* 重置原生 button 外观；:where() 保证特异性为 (0,1,0)，不会被后面的 .float-btn-* 背景色覆盖 */
:where(button).float-btn{border: 0;background: none;font: inherit;cursor: pointer;-webkit-appearance: none;appearance: none}
.float-btn{width: 52px;height: 52px;border-radius: 50%;display: flex;align-items: center;justify-content: center;font-size: 22px;cursor: pointer;border: none;box-shadow: var(--shadow-lg);transition: all var(--transition);position: relative}
.float-btn-tel{background: linear-gradient(135deg, #10b981, #059669);color: var(--white)}
.float-btn-tel:hover{transform: scale(1.1)}
.float-btn-wx{background: linear-gradient(135deg, #07c160, #06ad56);color: var(--white)}
.float-btn-wx:hover{transform: scale(1.1)}
.float-btn-top{background: var(--white);color: var(--gray-600)}
.float-btn-top:hover{transform: scale(1.1);color: var(--primary)}
.float-tooltip{position: absolute;right: calc(100% + 12px);top: 50%;transform: translateY(-50%);background: var(--white);border-radius: var(--radius);box-shadow: var(--shadow-xl);padding: 10px;opacity: 0;visibility: hidden;pointer-events: none;transition: opacity 0.3s ease, visibility 0.3s ease;white-space: nowrap;font-size: 14px;z-index: 1000}
.float-tooltip.tel-tip{padding: 14px 20px;font-size: 18px;font-weight: 700;color: var(--dark);letter-spacing: 1px}
.float-tooltip.wx-tip{padding: 10px;width: 160px;height: 160px}
.float-tooltip.wx-tip img{width: 140px;height: 140px;border-radius: 8px;display: block}
.float-btn:hover .float-tooltip, .float-btn.tooltip-visible .float-tooltip{opacity: 1;visibility: visible;pointer-events: auto}
.page-banner{background: linear-gradient(135deg, var(--primary-dark), var(--primary));padding: 120px 0 60px;text-align: center;color: var(--white);position: relative;overflow: hidden}
.page-banner::before{content: '';position: absolute;inset: 0;background: radial-gradient(ellipse at center, rgba(0, 180, 216, 0.15) 0%, transparent 60%)}
.page-banner-content{position: relative;z-index: 1}
.page-banner-title{font-size: 38px;font-weight: 800;margin-bottom: 12px}
.page-banner-sub{font-size: 15px;opacity: 0.75}
.breadcrumb{display: flex;align-items: center;justify-content: center;gap: 8px;margin-top: 16px;font-size: 13px;opacity: 0.7}
.breadcrumb a:hover{opacity: 1;text-decoration: underline}
.product-detail{padding: 60px 0}
.pd-intro{display: grid;grid-template-columns: 1fr 1fr;gap: 50px;align-items: start;margin-bottom: 60px}
.pd-image{border-radius: var(--radius-xl);aspect-ratio: 4/3;background: linear-gradient(135deg, #e8f4f8, #d0e8f0);display: flex;align-items: center;justify-content: center;font-size: 80px;position: sticky;top: 100px}
.pd-info-title{font-size: 30px;font-weight: 700;color: var(--dark);margin-bottom: 16px}
.pd-info-desc{font-size: 15px;color: var(--gray-600);line-height: 1.9;margin-bottom: 24px}
.pd-features-list{display: grid;grid-template-columns: 1fr 1fr;gap: 12px;margin-bottom: 28px}
.pd-feature-item{display: flex;align-items: center;gap: 10px;padding: 12px 16px;background: var(--gray-100);border-radius: var(--radius);font-size: 14px;color: var(--gray-700);font-weight: 500}
.pd-feature-dot{width: 8px;height: 8px;border-radius: 50%;background: var(--secondary);flex-shrink: 0}
.pd-faq{margin-bottom: 20px}
.pd-faq-item{background: var(--white);border: 1px solid var(--gray-200);border-radius: 10px;padding: 16px 20px;margin-bottom: 12px}
.pd-faq-item summary{cursor: pointer;font-weight: 600;color: var(--primary);line-height: 1.7}
.pd-faq-item p{margin: 12px 0 0;line-height: 1.9;color: var(--gray-700)}
.news-article{max-width: 860px;margin: 0 auto}
.news-meta-bar{display: flex;flex-wrap: wrap;gap: 8px 20px;font-size: 13px;color: var(--gray-500);margin-bottom: 20px}
.news-lead{margin-bottom: 28px;border-radius: var(--radius-lg);overflow: hidden;background: var(--gray-100)}
.news-lead img{width: 100%;height: auto}
.news-article-body h2{font-size: 22px;font-weight: 700;color: var(--dark);line-height: 1.5;margin: 32px 0 14px;padding-left: 12px;border-left: 4px solid var(--secondary)}
.news-article-body h3{font-size: 17px;font-weight: 600;color: var(--primary);line-height: 1.6;margin: 24px 0 10px}
.news-article-body p{font-size: 15px;line-height: 1.95;color: var(--gray-700);margin-bottom: 16px}
.news-article-body ul{margin: 0 0 18px;padding-left: 4px}
.news-article-body li{position: relative;padding-left: 18px;margin-bottom: 8px;font-size: 15px;line-height: 1.85;color: var(--gray-700)}
.news-article-body li::before{content: '';position: absolute;left: 2px;top: 12px;width: 6px;height: 6px;border-radius: 50%;background: var(--secondary)}
.news-article-body a{color: var(--primary);border-bottom: 1px solid rgba(13, 79, 139, 0.3)}
.news-related-list{display: grid;gap: 10px}
.news-related-list a{display: block;padding: 14px 18px;background: var(--gray-100);border: 1px solid var(--gray-200);border-radius: var(--radius);font-size: 15px;color: var(--primary);transition: all var(--transition)}
.news-related-list a:hover{background: var(--white);border-color: var(--primary-light);transform: translateX(4px)}
.spec-table-wrap{overflow-x: auto;margin-bottom: 24px}
.spec-table{width: 100%;border-collapse: collapse;font-size: 14px;min-width: 560px}
.spec-table caption{text-align: left;font-size: 13px;color: var(--gray-500);padding-bottom: 8px}
.spec-table th, .spec-table td{border: 1px solid var(--gray-200);padding: 10px 14px;text-align: left;color: var(--gray-700)}
.spec-table th{background: var(--gray-100);font-weight: 600;color: var(--dark)}
.subcat-section{margin-bottom: 50px}
.subcat-title{font-size: 24px;font-weight: 700;color: var(--dark);margin-bottom: 24px;padding-bottom: 12px;border-bottom: 2px solid var(--gray-200);position: relative}
.subcat-title::after{content: '';position: absolute;bottom: -2px;left: 0;width: 60px;height: 2px;background: var(--secondary)}
.subcat-grid{display: grid;grid-template-columns: repeat(3, 1fr);gap: 24px}
.subcat-card{background: var(--white);border-radius: var(--radius-lg);overflow: hidden;border: 1px solid var(--gray-200);transition: all var(--transition)}
.subcat-card:hover{box-shadow: var(--shadow-lg);transform: translateY(-4px)}
.subcat-card-img{aspect-ratio: 16/10;background: linear-gradient(135deg, #f0f7fa, #e0eef5);display: flex;align-items: center;justify-content: center;font-size: 50px}
.subcat-card-body{padding: 20px}
.subcat-card-name{font-size: 16px;font-weight: 700;color: var(--dark);margin-bottom: 6px}
.subcat-card-desc{font-size: 13px;color: var(--gray-500);line-height: 1.6}
.cases-page-grid{display: grid;grid-template-columns: repeat(3, 1fr);gap: 28px}
.case-page-card{display: block;color: inherit;text-decoration: none;cursor: pointer;border-radius: var(--radius-lg);overflow: hidden;background: var(--white);box-shadow: var(--shadow-sm);transition: all var(--transition);border: 1px solid var(--gray-200)}
.case-page-card:hover{transform: translateY(-6px);box-shadow: var(--shadow-xl)}
.case-page-img{aspect-ratio: 16/10;background: linear-gradient(135deg, #dbeafe, #bfdbfe);display: flex;align-items: center;justify-content: center;font-size: 48px}
.case-page-body{padding: 24px}
.case-page-title{font-size: 18px;font-weight: 700;color: var(--dark);margin-bottom: 8px}
.case-page-meta{display: flex;gap: 16px;font-size: 12px;color: var(--gray-500);margin-bottom: 10px}
.case-page-desc{font-size: 13px;color: var(--gray-600);line-height: 1.7}
.news-grid{display: grid;grid-template-columns: repeat(3, 1fr);gap: 28px}
.news-card{display: block;color: inherit;text-decoration: none;cursor: pointer;border-radius: var(--radius-lg);overflow: hidden;background: var(--white);box-shadow: var(--shadow-sm);transition: all var(--transition);border: 1px solid var(--gray-200)}
.news-card:hover{transform: translateY(-6px);box-shadow: var(--shadow-xl)}
.news-card-img{aspect-ratio: 16/10;background: linear-gradient(135deg, #fef3c7, #fde68a);display: flex;align-items: center;justify-content: center;font-size: 48px}
.news-card-body{padding: 24px}
.news-card-date{font-size: 12px;color: var(--gray-500);margin-bottom: 8px}
.news-card-title{font-size: 17px;font-weight: 700;color: var(--dark);margin-bottom: 8px;line-height: 1.5}
.news-card-excerpt{font-size: 13px;color: var(--gray-500);line-height: 1.7}
.contact-grid{display: grid;grid-template-columns: 1fr 1fr;gap: 50px}
.contact-info-title{font-size: 28px;font-weight: 700;color: var(--dark);margin-bottom: 12px}
.contact-info-desc{font-size: 15px;color: var(--gray-500);line-height: 1.8;margin-bottom: 32px}
.contact-info-items{display: flex;flex-direction: column;gap: 20px;margin-bottom: 32px}
.contact-info-item{display: flex;gap: 14px;align-items: flex-start}
.contact-info-icon{width: 44px;height: 44px;border-radius: var(--radius);background: rgba(0, 180, 216, 0.1);display: flex;align-items: center;justify-content: center;color: var(--secondary);font-size: 18px;flex-shrink: 0}
.contact-info-text strong{display: block;font-size: 15px;color: var(--dark);margin-bottom: 2px}
.contact-info-text span{font-size: 13px;color: var(--gray-500)}
.map-section{padding: 0 0 60px}
.map-placeholder{width: 100%;height: 400px;background: #e8ecf1;border-radius: 24px;overflow: hidden;position: relative}
.map-placeholder iframe, .map-placeholder #companyMap{width: 100%;height: 100%;border: 0;border-radius: 24px}
.map-placeholder .leaflet-control-zoom{border: none !important;box-shadow: 0 2px 8px rgba(0,0,0,0.15) !important;border-radius: 8px !important;overflow: hidden}
.map-placeholder .leaflet-control-zoom a{width: 32px !important;height: 32px !important;line-height: 32px !important}
.custom-marker{background: transparent !important;border: none !important}
.about-page-intro{display: grid;grid-template-columns: 1fr 1fr;gap: 50px;align-items: center;margin-bottom: 60px}
.about-page-img{border-radius: var(--radius-xl);aspect-ratio: 4/3;background: linear-gradient(135deg, #e8f4f8, #d0e8f0);display: flex;align-items: center;justify-content: center;font-size: 80px}
.about-values{display: grid;grid-template-columns: repeat(4, 1fr);gap: 24px;margin-bottom: 60px}
.about-value-card{text-align: center;padding: 32px 20px;border-radius: var(--radius-lg);background: var(--white);border: 1px solid var(--gray-200);transition: all var(--transition)}
.about-value-card:hover{border-color: transparent;box-shadow: var(--shadow);transform: translateY(-4px)}
.about-value-icon{font-size: 40px;margin-bottom: 14px}
.about-value-title{font-size: 16px;font-weight: 700;color: var(--dark);margin-bottom: 6px}
.about-value-desc{font-size: 12px;color: var(--gray-500);line-height: 1.6}
.certs-grid{display: grid;grid-template-columns: repeat(4, 1fr);gap: 28px}
.cert-card{text-align: center;padding: 36px 20px 30px;border-radius: var(--radius-lg);background: var(--white);border: 1px solid var(--gray-200);transition: all var(--transition);display: flex;flex-direction: column;align-items: center}
.cert-card:hover{box-shadow: var(--shadow-lg);transform: translateY(-4px)}
.cert-icon-wrap{width: 72px;height: 72px;border-radius: 16px;overflow: hidden;margin-bottom: 18px;display: flex;align-items: center;justify-content: center;background: linear-gradient(135deg, #e3f2fd, #bbdefb);box-shadow: 0 4px 12px rgba(13, 79, 139, 0.1)}
.cert-icon-wrap img{width: 100%;height: 100%;object-fit: cover}
.cert-icon-default{background: linear-gradient(135deg, #fef3c7, #fcd34d)}
.cert-name{font-size: 16px;font-weight: 700;color: var(--dark);margin-bottom: 8px}
.cert-desc{font-size: 13px;color: var(--gray-500);line-height: 1.5}
.timeline{position: relative;padding: 20px 0}
.timeline::before{content: '';position: absolute;left: 50%;top: 0;bottom: 0;width: 2px;background: var(--gray-300);transform: translateX(-50%)}
.timeline-item{display: flex;align-items: flex-start;margin-bottom: 40px;position: relative}
.timeline-item:nth-child(odd){flex-direction: row}
.timeline-item:nth-child(even){flex-direction: row-reverse}
.timeline-dot{position: absolute;left: 50%;top: 8px;width: 14px;height: 14px;background: var(--secondary);border-radius: 50%;transform: translateX(-50%);border: 3px solid var(--white);box-shadow: 0 0 0 3px var(--secondary);z-index: 1}
.timeline-content{width: 45%;padding: 20px 24px;background: var(--white);border-radius: var(--radius-lg);box-shadow: var(--shadow-sm);border: 1px solid var(--gray-200)}
.timeline-year{font-size: 14px;font-weight: 700;color: var(--primary);margin-bottom: 4px}
.timeline-title{font-size: 16px;font-weight: 700;color: var(--dark);margin-bottom: 6px}
.timeline-desc{font-size: 13px;color: var(--gray-500);line-height: 1.6}
/* 仅在"脚本可用"时隐藏，禁用 JS 或脚本出错时内容默认可见（无 JS 也不会整块空白） */
@media (scripting: enabled){.fade-in{opacity: 0;transform: translateY(30px) translateZ(0);transition: opacity 0.6s ease, transform 0.6s ease;will-change: transform, opacity}
.fade-in.visible{opacity: 1;transform: translateY(0) translateZ(0)}
}
.header{padding-top: var(--safe-top)}
.footer{padding-bottom: var(--safe-bottom)}
.btn, .nav-link, .dropdown-link, .product-card-link, .mobile-nav-link, .mobile-sub-toggle, .mobile-sub-link, .footer-links a, .brand-item, .subcat-card, .float-btn{min-height: var(--touch-min);cursor: pointer;touch-action: manipulation}
.btn{min-height: clamp(44px, 10vw, 52px)}
a, button, input, select, textarea, label{touch-action: manipulation;-webkit-tap-highlight-color: transparent}
@media (hover: none) and (pointer: coarse){.btn:active, .nav-link:active, .product-card:active, .subcat-card:active, .case-card:active, .news-card:active{opacity: 0.7;transform: scale(0.97);transition: transform 0.1s ease, opacity 0.1s ease}
.float-btn:active{transform: scale(0.9);transition: transform 0.1s ease}
}
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi){.header, .product-card, .case-card, .news-card, .subcat-card, .about-value-card, .cert-card, .brand-item, .contact-info-item{border-width: 0.5px}
}
@media (prefers-color-scheme: dark){body{background: var(--gray-100);color: var(--gray-600)}
.header{background: rgba(15, 23, 42, 0.95);backdrop-filter: blur(12px);-webkit-backdrop-filter: blur(12px);border-bottom: 1px solid rgba(255,255,255,0.08)}
.nav-link:hover, .nav-link.active{background: rgba(96, 165, 250, 0.15)}
.dropdown{background: var(--gray-100);border-color: var(--gray-200)}
.mobile-nav{background: var(--gray-100)}
.product-card, .case-card, .news-card, .adv-card, .about-value-card, .cert-card, .contact-info-item, .subcat-card, .brand-item{background: var(--gray-100);border-color: rgba(255,255,255,0.08)}
.product-card-tag-item, .case-card-tag{background: var(--gray-200)}
.footer{background: #0a0f1a}
.btn-outline{border-color: var(--primary);color: var(--primary)}
.btn-outline:hover{background: var(--primary);color: var(--white)}
.section-title::after{background: linear-gradient(90deg, var(--secondary), var(--primary))}
input, textarea, select{background: var(--gray-200);border-color: var(--gray-300);color: var(--gray-600)}
input:focus, textarea:focus, select:focus{background: var(--gray-100)}
.footer-contact-item img, .contact-info-icon img, .ap-feature-icon{filter: brightness(1.2)}
.nav-link{color: var(--gray-500)}
.nav-link:hover, .nav-link.active{color: var(--primary)}
.footer-title, .footer-about .logo-name, .hero-text{color: #e2e8f0}
.case-category{color: #ffffff}
.btn-accent, .product-card-tag, .ap-experience{color: #ffffff}
}
.skip-to-content{position: absolute;top: 0;left: 16px;z-index: 10000;padding: 12px 20px;background: var(--primary);color: var(--white);border-radius: var(--radius);font-weight: 600;font-size: 14px;transform: translateY(-120%);transition: transform 0.2s ease;text-decoration: none}
.skip-to-content:focus{transform: translateY(0)}
:focus-visible{outline: 3px solid var(--primary);outline-offset: 2px;border-radius: 4px}
/* 浮动按钮本身是圆形，聚焦时不应被上面的 border-radius 改成方角 */
.float-btn:focus-visible{border-radius: 50%}
@media (prefers-reduced-motion: reduce){*, *::before, *::after{animation-duration: 0.01ms !important;animation-iteration-count: 1 !important;transition-duration: 0.01ms !important;scroll-behavior: auto !important}
.fade-in{opacity: 1;transform: none}
}
@media (max-width: 1200px){.hero-content{grid-template-columns: 1fr;text-align: center}
.hero-desc{margin: 0 auto 36px}
.hero-btns{justify-content: center}
.hero-stats{justify-content: center}
.hero-visual{max-width: 400px;margin: 0 auto}
.hero-float-card{display: none}
.hero-title{font-size: 42px}
.ap-grid{gap: 40px}
.products-grid{grid-template-columns: repeat(2, 1fr)}
.adv-grid{grid-template-columns: repeat(2, 1fr)}
.cases-grid{grid-template-columns: repeat(2, 1fr)}
.about-values{grid-template-columns: repeat(2, 1fr)}
.certs-grid{grid-template-columns: repeat(2, 1fr)}
.news-grid{grid-template-columns: repeat(2, 1fr)}
.cases-page-grid{grid-template-columns: repeat(2, 1fr)}
.subcat-grid{grid-template-columns: repeat(2, 1fr)}
.contact-grid{gap: 30px}
.footer-grid{grid-template-columns: 1fr 1fr}
.pd-intro{grid-template-columns: 1fr}
.pd-image{position: static;max-width: 500px;margin: 0 auto}
}
@media (max-width: 900px){.header{height: var(--header-height-mobile)}
.nav-list{display: none}
.header-actions .header-tel{display: none}
.hamburger{display: flex}
.hero{min-height: auto;padding: 100px 0 80px}
.hero-title{font-size: 34px}
.hero-stats{gap: 24px;flex-wrap: wrap}
.hero-stat-num{font-size: 26px}
.hero-scroll{display: none}
.section{padding: 50px 0}
.section-title{font-size: 28px}
.ap-grid{grid-template-columns: 1fr}
.ap-image-wrap{max-width: 450px;margin: 0 auto}
.ap-experience{right: 0;bottom: -10px;padding: 16px 16px}
.ap-exp-num{font-size: 28px}
.products-grid{grid-template-columns: 1fr;max-width: 450px;margin: 0 auto}
.cases-grid{grid-template-columns: 1fr;max-width: 450px;margin: 0 auto}
.adv-grid{grid-template-columns: 1fr 1fr;gap: 16px}
.cta-title{font-size: 26px}
.about-page-intro{grid-template-columns: 1fr}
.about-page-img{max-width: 450px;margin: 0 auto}
.about-values{grid-template-columns: 1fr 1fr}
.certs-grid{grid-template-columns: 1fr 1fr}
.news-grid{grid-template-columns: 1fr;max-width: 450px;margin: 0 auto}
.cases-page-grid{grid-template-columns: 1fr;max-width: 450px;margin: 0 auto}
.subcat-grid{grid-template-columns: 1fr;max-width: 450px;margin: 0 auto}
.contact-grid{grid-template-columns: 1fr}
.pd-features-list{grid-template-columns: 1fr}
.timeline::before{left: 20px}
.timeline-item, .timeline-item:nth-child(even){flex-direction: row}
.timeline-dot{left: 20px}
.timeline-content{width: calc(100% - 50px);margin-left: 50px}
.footer-grid{grid-template-columns: 1fr;gap: 30px}
.footer-qr{text-align: left}
.float-btns{right: 12px;bottom: 60px;gap: 8px}
.float-btn{width: 44px;height: 44px;font-size: 18px}
.map-placeholder{height: 280px;border-radius: 16px}
.page-banner{padding: 100px 0 40px}
.page-banner-title{font-size: 28px}
}
@media (max-width: 600px){.container{padding: 0 16px}
.header-inner{padding: 0 16px}
.logo-icon{width: 36px;height: 36px;font-size: 11px;letter-spacing: 0.5px}
.logo-name{font-size: 16px}
.hero-title{font-size: 28px}
.hero-desc{font-size: 14px}
.hero-btns{flex-direction: column;align-items: center;gap: 12px}
.hero-stats{gap: 16px}
.hero-stat-num{font-size: 22px}
.section-title{font-size: 24px}
.section-subtitle{font-size: 12px;letter-spacing: 2px}
.adv-grid{grid-template-columns: 1fr}
.ap-experience{display: none}
.ap-features{grid-template-columns: 1fr}
.about-values{grid-template-columns: 1fr}
.certs-grid{grid-template-columns: 1fr}
.map-placeholder{height: 220px;border-radius: 12px}
.pd-info-title{font-size: 24px}
.subcat-title{font-size: 20px}
.case-page-title{font-size: 16px}
.news-card-title{font-size: 15px}
.footer{padding: 40px 0 0}
.footer-grid{gap: 24px}
.footer-bottom{flex-direction: column;text-align: center}
}

/* ===== 联系直达卡片（纯静态部署无后端，替代在线留言表单） ===== */
.contact-ways{display: flex;flex-direction: column;gap: 16px}
.contact-ways-title{font-size: 20px;font-weight: 700;color: var(--dark);margin-bottom: 8px}
.contact-way{display: flex;align-items: center;gap: 16px;padding: 20px 24px;min-height: var(--touch-min);border-radius: var(--radius-lg);background: var(--white);border: 1px solid var(--gray-200);box-shadow: var(--shadow-sm);color: inherit;text-decoration: none;touch-action: manipulation;transition: all var(--transition)}
.contact-way:hover{box-shadow: var(--shadow-lg);border-color: var(--secondary);transform: translateY(-2px)}
.contact-way-icon{width: 48px;height: 48px;border-radius: var(--radius);background: rgba(0, 180, 216, 0.1);display: flex;align-items: center;justify-content: center;flex-shrink: 0}
.contact-way-icon img{display: block}
.contact-way-body{flex: 1;min-width: 0;display: flex;flex-direction: column;gap: 2px}
.contact-way-body strong{font-size: 16px;font-weight: 700;color: var(--dark)}
.contact-way-body span{font-size: 13px;color: var(--gray-500);word-break: break-all}
.contact-way-arrow{font-size: 20px;line-height: 1;color: var(--secondary);flex-shrink: 0;transition: transform var(--transition)}
.contact-way:hover .contact-way-arrow{transform: translateX(4px)}
.contact-way-qr{width: 72px;height: 72px;border-radius: 8px;flex-shrink: 0;display: block}
@media (hover: none) and (pointer: coarse){.contact-way:active{opacity: 0.7;transform: scale(0.98);transition: transform 0.1s ease, opacity 0.1s ease}
}
@media (prefers-color-scheme: dark){.contact-way{background: var(--gray-100);border-color: rgba(255,255,255,0.08)}
.contact-way-icon img{filter: brightness(1.2)}
}