body { font-family: 'Noto Sans SC', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif; }
.gradient-bg { background: linear-gradient(135deg, #1e40af 0%, #10b981 100%); }
.card-shadow { box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.input-focus:focus { border-color: #1e40af; box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1); }
.btn-primary { background: linear-gradient(135deg, #1e40af, #3b82f6); }
.btn-primary:hover { background: linear-gradient(135deg, #1e3a8a, #2563eb); }
.floating-shapes { position: absolute; width: 100%; height: 100%; overflow: hidden; z-index: 0; }
.shape { position: absolute; opacity: 0.1; }

.min-h-screen{min-height:100vh}
.flex{display:flex}
.items-center{align-items:center}
.justify-center{justify-content:center}
.p-1{padding:.25rem}
.p-4{padding:1rem}
.p-8{padding:2rem}
.py-2{padding-top:.5rem;padding-bottom:.5rem}
.py-3{padding-top:.75rem;padding-bottom:.75rem}
.px-4{padding-left:1rem;padding-right:1rem}
.mb-2{margin-bottom:.5rem}
.mb-4{margin-bottom:1rem}
.mb-6{margin-bottom:1.5rem}
.mb-8{margin-bottom:2rem}
.mt-4{margin-top:1rem}
.mt-6{margin-top:1.5rem}
.space-y-4>*+*{margin-top:1rem}
.w-full{width:100%}
.max-w-md{max-width:28rem}
.relative{position:relative}
.z-10{z-index:10}
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.flex-1{flex:1 1 0%}
.w-20{width:5rem}.h-20{height:5rem}
.w-12{width:3rem}.h-12{height:3rem}
.w-16{width:4rem}.h-16{height:4rem}
.w-24{width:6rem}.h-24{height:6rem}
.bg-white{background-color:#ffffff}
.bg-gray-100{background-color:#f3f4f6}
.bg-blue-600{background-color:#2563eb}
.bg-red-100{background-color:#fee2e2}
.bg-green-100{background-color:#d1fae5}
.text-white{color:#ffffff}
.text-gray-600{color:#4b5563}
.text-gray-700{color:#374151}
.text-gray-900{color:#111827}
.text-blue-100{color:#dbeafe}
.border{border-width:1px;border-style:solid;border-color:#e5e7eb}
.border-gray-300{border-color:#d1d5db}
.border-red-400{border-color:#f87171}
.rounded-md{border-radius:.375rem}
.rounded-lg{border-radius:.5rem}
.rounded-2xl{border-radius:1rem}
.shadow-sm{box-shadow:0 1px 2px rgba(0,0,0,0.05)}
.border-b{border-bottom:1px solid #e5e7eb}
.border-gray-200{border-color:#e5e7eb}
.rounded-full{border-radius:9999px}
.text-sm{font-size:.875rem;line-height:1.25rem}
.text-xl{font-size:1.25rem;line-height:1.75rem}
.text-4xl{font-size:2.25rem;line-height:2.5rem}
.text-3xl{font-size:1.875rem;line-height:2.25rem}
.font-bold{font-weight:700}
.font-medium{font-weight:500}
.transition-all{transition:all .2s ease}
.hidden{display:none}
.hover\:shadow-lg:hover{box-shadow:0 10px 15px rgba(0,0,0,0.1)}
.rotate-45{transform:rotate(45deg)}
.rotate-12{transform:rotate(12deg)}
.mx-auto{margin-left:auto;margin-right:auto}
.px-4{padding-left:1rem;padding-right:1rem}
.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}
.mb-12{margin-bottom:3rem}
.max-w-6xl{max-width:72rem}
.max-w-7xl{max-width:80rem}
.sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}
.lg\:px-8{padding-left:2rem;padding-right:2rem}
.py-12{padding-top:3rem;padding-bottom:3rem}
.md\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid{display:grid}
.gap-8{gap:2rem}
.bg-purple-100{background-color:#f3e8ff}
.bg-orange-100{background-color:#ffedd5}
.bg-blue-100{background-color:#dbeafe}