:root{--primary: #002060;--primary-dark: #001540;--primary-light: #1e3a8a;--accent: #c00020;--accent-dark: #8a0010;--text: #1f2937;--text-light: #6b7280;--text-muted: #9ca3af;--bg: #ffffff;--bg-soft: #f5f7fb;--bg-card: #ffffff;--border: #e5e7eb;--shadow-sm: 0 1px 2px rgba(0,0,0,.05);--shadow: 0 4px 12px rgba(0,0,0,.06);--shadow-lg: 0 12px 36px rgba(0,0,0,.1);--container: 1200px;--radius: 8px;--radius-lg: 12px;--header-h: 72px}*{box-sizing:border-box;margin:0;padding:0}*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Inter,sans-serif;color:var(--text);background:var(--bg);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,video{max-width:100%;height:auto;display:block}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-light)}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;background:var(--primary);color:#fff!important;border:none;border-radius:var(--radius);font-size:15px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}.btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow)}.btn-accent{background:var(--accent)}.btn-accent:hover{background:var(--accent-dark)}.btn-outline{background:transparent;color:var(--primary)!important;border:1px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff!important}.btn-white{background:#fff;color:var(--primary)!important}.btn-white:hover{background:#ffffffe6}.btn-lg{padding:14px 32px;font-size:16px}section{padding:80px 0}.section-title{text-align:center;margin-bottom:48px}.section-title h2{font-size:36px;font-weight:700;color:var(--primary);margin-bottom:12px;line-height:1.2}.section-title p{color:var(--text-light);font-size:17px;max-width:700px;margin:0 auto}h1,h2,h3,h4,h5{line-height:1.3}.grid{display:grid;gap:24px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-5{grid-template-columns:repeat(5,1fr)}.card{background:var(--bg-card);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:all .25s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}.card-icon{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}.card h3{font-size:19px;font-weight:600;margin-bottom:10px;color:var(--text)}.card p{color:var(--text-light);font-size:14.5px;line-height:1.7}.form-grid{display:grid;gap:16px;grid-template-columns:1fr 1fr}.form-grid .full{grid-column:1 / -1}.form-field{display:flex;flex-direction:column;gap:6px}.form-field label{font-size:14px;font-weight:500;color:var(--text)}.form-field label .req{color:#ef4444}input,select,textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);font-family:inherit;font-size:15px;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #0f3a821f}textarea{min-height:100px;resize:vertical}.site-header{position:sticky;top:0;z-index:100;background:#fffffff5;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border);height:var(--header-h);display:flex;align-items:center}.site-header .container{display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;color:var(--primary)!important}.logo-img{height:48px;width:auto;display:block;object-fit:contain}.logo-img.footer-logo{background:#fff;padding:6px 10px;border-radius:6px;height:52px}.nav-desktop{display:flex;align-items:center;gap:28px}.nav-desktop a{color:var(--text);font-size:15px;font-weight:500;position:relative;padding:6px 0}.nav-desktop a:hover,.nav-desktop a.active{color:var(--primary)}.nav-desktop a.active:after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);border-radius:2px}.nav-actions{display:flex;align-items:center;gap:14px}.lang-switch{font-size:14px;color:var(--text-light);padding:6px 12px;border:1px solid var(--border);border-radius:20px;transition:all .2s}.lang-switch:hover{border-color:var(--primary);color:var(--primary)}.menu-toggle{display:none;background:transparent;border:none;width:40px;height:40px;padding:0;cursor:pointer;align-items:center;justify-content:center}.menu-toggle span{position:relative;width:22px;height:2px;background:var(--text);display:block;transition:all .3s}.menu-toggle span:before,.menu-toggle span:after{content:"";position:absolute;width:22px;height:2px;background:var(--text);left:0;transition:all .3s}.menu-toggle span:before{top:-7px}.menu-toggle span:after{top:7px}.menu-toggle.open span{background:transparent}.menu-toggle.open span:before{top:0;transform:rotate(45deg)}.menu-toggle.open span:after{top:0;transform:rotate(-45deg)}.nav-mobile{display:none;position:fixed;top:var(--header-h);left:0;right:0;bottom:0;background:#fff;z-index:99;padding:24px;overflow-y:auto;flex-direction:column;gap:0}.nav-mobile.open{display:flex}.nav-mobile a{padding:16px 0;border-bottom:1px solid var(--border);color:var(--text);font-size:17px;font-weight:500}.nav-mobile a:hover,.nav-mobile a.active{color:var(--primary)}.nav-mobile .btn{margin-top:20px;justify-content:center}.site-footer{background:#0a1b3a;color:#cbd5e1;padding:64px 0 24px;margin-top:80px}.site-footer h4{color:#fff;margin-bottom:16px;font-size:16px}.site-footer a{color:#cbd5e1;display:block;padding:6px 0;font-size:14px}.site-footer a:hover{color:var(--accent)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:20px;text-align:center;font-size:13px;color:#94a3b8}@media(max-width:1024px){section{padding:64px 0}.section-title h2{font-size:30px}.grid-4,.grid-5{grid-template-columns:repeat(3,1fr)}}@media(max-width:768px){:root{--header-h: 60px}body{font-size:15px}section{padding:48px 0}.container{padding:0 20px}.section-title h2{font-size:26px}.section-title p{font-size:15px}.grid-2,.grid-3,.grid-4,.grid-5,.form-grid{grid-template-columns:1fr}.nav-desktop{display:none}.menu-toggle{display:inline-flex}.lang-switch{padding:5px 10px;font-size:13px}.btn{padding:11px 20px;font-size:14px}.btn-lg{padding:13px 26px;font-size:15px}.card{padding:20px}.card h3,.logo{font-size:17px}.logo-img{height:38px}.site-footer{padding:48px 0 20px;margin-top:48px}}@media(max-width:480px){section{padding:40px 0}.container{padding:0 16px}.section-title h2{font-size:22px}.section-title{margin-bottom:32px}}.text-center{text-align:center}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}.mb-4{margin-bottom:32px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}.gap-2{gap:16px}.gap-3{gap:24px}.flex-wrap{flex-wrap:wrap}