:root{--primary:#1a56db;--primary-dark:#173ba7;--primary-light:#3b82f6;--accent:#f59e0b;--dark:#0f172a;--dark-2:#1e293b;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-500:#64748b;--gray-700:#334155;--gray-900:#0f172a;--white:#ffffff;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow:0 4px 6px -1px rgba(0,0,0,0.07),0 2px 4px -2px rgba(0,0,0,0.05);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.08),0 4px 6px -4px rgba(0,0,0,0.05);--radius:8px;--radius-lg:12px;--transition:all 0.3s ease}*,::after,::before{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft 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rgba(0,0,0,.06);z-index:1000}.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}.logo{display:flex;align-items:center;gap:12px}.logo img{height:40px;width:auto}.logo-text{font-size:1.1rem;font-weight:700;color:var(--dark)}.logo-text-wrap{display:flex;flex-direction:column;line-height:1.15}.logo-text-wrap .logo-main-text{font-size:1.35rem;font-weight:700;color:var(--dark)}.logo-text-wrap .logo-sub-text{font-size:.52rem;color:var(--gray-500);letter-spacing:.5px;font-family:Arial,sans-serif;white-space:nowrap}.nav-menu ul{display:flex;align-items:center;gap:8px}.nav-menu a{display:flex;align-items:center;gap:6px;padding:8px 16px;font-size:.9rem;font-weight:500;color:var(--gray-700);border-radius:6px;transition:var(--transition)}.nav-menu a.active,.nav-menu a:hover{color:var(--primary);background:var(--gray-50)}.mobile-menu-btn{display:none;font-size:1.5rem;color:var(--gray-700);cursor:pointer}.hero{position:relative;overflow:hidden;padding:140px 0 80px;background:linear-gradient(135deg,#0c1445 0,#1a365d 100%);color:var(--white);text-align:center}.hero .container{position:relative;z-index:1}.hero h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;letter-spacing:-.5px}.hero p{font-size:1.2rem;color:rgba(255,255,255,.85);margin-bottom:32px}.hero-buttons{display:flex;gap:16px;justify-content:center}.hero-wave{position:absolute;top:0;left:0;right:0;bottom:0;overflow:hidden;z-index:0}.hero-wave-row{display:flex;white-space:nowrap;height:25%}.hero-wave-row img{height:100%;width:auto;flex-shrink:0;object-fit:cover;border-radius:4px;margin:0 3px;opacity:.35;filter:brightness(.7) saturate(1.3)}.hero-wave-scroll{display:flex;animation:waveScroll var(--speed,30s) linear infinite}@keyframes waveScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}.hero-wave-row:first-child .hero-wave-scroll{--speed:20s;animation-direction:normal}.hero-wave-row:nth-child(2) .hero-wave-scroll{--speed:28s;animation-direction:reverse}.hero-wave-row:nth-child(3) .hero-wave-scroll{--speed:24s;animation-direction:normal}.hero-wave-row:nth-child(4) .hero-wave-scroll{--speed:18s;animation-direction:reverse}.section{padding:80px 0}.section-title{font-size:2rem;font-weight:700;color:var(--dark);text-align:center;margin-bottom:16px}.section-subtitle{text-align:center;color:var(--gray-500);font-size:1rem;margin-bottom:48px}.about-grid{display:grid;grid-template-columns:1fr 360px;gap:60px;align-items:start}.about-text p{color:var(--gray-700);margin-bottom:16px;line-height:1.8}.about-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.stat-item{text-align:center;padding:24px;background:var(--gray-50);border-radius:var(--radius-lg)}.stat-number{font-size:2.2rem;font-weight:800;color:var(--primary);display:block}.stat-label{font-size:.9rem;color:var(--gray-500);margin-top:4px}.about-highlights{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:32px;padding-top:32px;border-top:1px solid var(--gray-200)}.highlight-item{display:flex;align-items:flex-start;gap:14px}.highlight-item i{font-size:1.4rem;color:var(--primary);margin-top:2px;flex-shrink:0}.highlight-item h4{font-size:.95rem;font-weight:600;color:var(--dark);margin-bottom:4px}.highlight-item p{font-size:.85rem;color:var(--gray-500);margin:0}.series-header{background:linear-gradient(135deg,#1a56db,#2563eb);color:#fff;padding:12px 18px;border-radius:8px;font-size:1rem;font-weight:700;display:flex;align-items:center;gap:8px}.series-header i{font-size:1.1rem;opacity:.9}.hp-model-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.hp-model-card{background:#fff;border:1px solid var(--gray-200);border-radius:8px;padding:12px 8px;text-align:center;transition:all .3s ease}.hp-model-card:hover{border-color:var(--primary);box-shadow:0 3px 10px rgba(26,86,219,.1);transform:translateY(-1px)}.hp-model-name{font-size:1rem;font-weight:700;color:var(--dark)}.hp-model-card img{width:100%;height:100px;object-fit:contain;border-radius:4px;margin-bottom:6px;background:#f8fafc}.model-card img{width:100%;height:140px;object-fit:contain;border-radius:4px;margin-bottom:8px;background:#f8fafc}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.product-card{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition)}.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.product-card-img{height:200px;background:var(--gray-100);display:flex;align-items:center;justify-content:center;color:var(--gray-400);font-size:3rem;overflow:hidden}.product-card-img img{width:100%;height:100%;object-fit:cover}.product-card-body{padding:24px}.product-card-body h3{font-size:1.1rem;font-weight:600;color:var(--dark);margin-bottom:8px}.product-card-body p{font-size:.9rem;color:var(--gray-500)}.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}.why-item{text-align:center}.why-item .why-num{font-size:3rem;font-weight:800;color:var(--primary);opacity:.2;line-height:1}.why-item h3{font-size:1.1rem;font-weight:600;color:var(--dark);margin:8px 0}.why-item p{font-size:.9rem;color:var(--gray-500)}.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.case-card{position:relative;height:250px;border-radius:var(--radius-lg);overflow:hidden;background:var(--gray-100)}.case-card picture{width:100%;height:100%;display:block}.case-card img{width:100%;height:100%;object-fit:cover}.case-card-overlay{position:absolute;bottom:0;left:0;right:0;padding:24px;background:linear-gradient(transparent,rgba(0,0,0,.8));color:var(--white)}.case-card-overlay h3{font-size:1rem;font-weight:600;margin-bottom:4px}.case-card-overlay p{font-size:.85rem;opacity:.8}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}.contact-info-item{display:flex;gap:16px;margin-bottom:24px}.contact-info-item i{font-size:1.5rem;color:var(--primary);width:40px}.contact-info-item h4{font-size:.9rem;color:var(--gray-500);font-weight:500;margin-bottom:4px}.contact-info-item p{font-size:1rem;color:var(--dark)}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.9rem;color:var(--gray-700);margin-bottom:8px}.form-group input,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:.95rem;font-family:inherit;transition:var(--transition)}.form-group input:focus,.form-group textarea:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,219,.1)}.form-group textarea{min-height:120px;resize:vertical}.footer{background:var(--dark);color:var(--white);padding:60px 0 30px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}.footer-brand p{color:var(--gray-300);font-size:.9rem;margin-top:16px;line-height:1.7}.footer h4{font-size:1rem;font-weight:600;margin-bottom:20px}.footer ul li{margin-bottom:12px}.footer ul a{color:var(--gray-300);font-size:.9rem;transition:var(--transition)}.footer ul a:hover{color:var(--white)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:30px;text-align:center;color:var(--gray-400);font-size:.85rem}.footer-social{display:flex;gap:12px}.social-btn{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:var(--transition);color:var(--gray-300);background:rgba(255,255,255,.1)}.social-btn:hover{transform:translateY(-3px)}.social-btn.wechat:hover{background:#07c160;color:#fff}.social-btn.qq:hover{background:#12b7f5;color:#fff}.social-btn.helmet:hover{background:#ff6b00;color:#fff}.qr-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);z-index:2000;align-items:center;justify-content:center}.qr-modal.show{display:flex}.qr-modal-content{background:#fff;border-radius:var(--radius-lg);padding:30px;text-align:center;max-width:320px;position:relative}.qr-modal-close{position:absolute;top:10px;right:15px;font-size:1.5rem;cursor:pointer;color:var(--gray-400)}.qr-modal-close:hover{color:var(--gray-700)}.qr-modal-content img{width:200px;height:200px;margin-bottom:16px}.qr-modal-content p{color:var(--gray-700);font-size:.95rem}.login-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);z-index:2000;align-items:center;justify-content:center}.login-modal.show{display:flex}.login-modal-content{background:#fff;border-radius:var(--radius-lg);padding:30px;width:100%;max-width:380px;position:relative}.login-modal-close{position:absolute;top:10px;right:15px;font-size:1.5rem;cursor:pointer;color:var(--gray-400)}.login-modal-header{text-align:center;margin-bottom:24px}.login-modal-header h3{font-size:1.3rem;font-weight:600;color:var(--dark)}.login-modal-header h3 i{color:var(--primary);margin-right:8px}@media (max-width:1024px){.cases-grid,.products-grid{grid-template-columns:repeat(2,1fr)}.why-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.container{padding:0 16px}.hero h1{font-size:2rem}.about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}.cases-grid,.products-grid,.why-grid{grid-template-columns:1fr}.nav-menu{display:none}.mobile-menu-btn{display:block}.footer-grid{grid-template-columns:1fr;gap:32px}}.top-phone-bar{position:fixed;top:0;left:0;right:0;background:var(--primary);color:#fff;text-align:center;padding:6px 20px;font-size:13px;z-index:1001;display:flex;align-items:center;justify-content:center;gap:24px}.top-phone-bar a{color:#fff;text-decoration:none}.top-phone-bar a:hover{text-decoration:underline}body{padding-top:30px}.header{top:30px}@media (max-width:768px){.top-phone-bar{font-size:12px;gap:16px;padding:5px 10px}}