:root{--color-primary:#2563eb;--color-primary-dark:#1d4ed8;--color-primary-light:#dbeafe;--color-primary-50:#eff6ff;--color-accent:#06b6d4;--color-accent-dark:#0891b2;--color-accent-light:#cffafe;--color-white:#fff;--color-bg:#f8fafc;--color-bg-alt:#f1f5f9;--color-text:#0f172a;--color-text-secondary:#334155;--color-text-muted:#64748b;--color-text-light:#94a3b8;--color-border:#e2e8f0;--color-border-light:#f1f5f9;--gradient-hero:linear-gradient(160deg, #1e3a5f 0%, #2563eb 40%, #06b6d4 100%);--gradient-primary:linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);--gradient-accent:linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);--gradient-light:linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 25px -3px #00000014, 0 4px 10px -4px #0000000a;--shadow-xl:0 20px 40px -5px #0000001a, 0 8px 16px -6px #0000000a;--shadow-blue:0 8px 30px #2563eb26;--radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-2xl:32px;--radius-full:9999px;--section-padding:100px 0;--section-padding-mobile:64px 0;--container-max:1200px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.3s cubic-bezier(.4, 0, .2, 1);--transition-slow:.5s cubic-bezier(.4, 0, .2, 1);--color-background:var(--color-white);--color-background-soft:var(--color-bg);--color-heading:var(--color-text);--color-border-hover:var(--color-primary);--section-gap:100px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{min-height:100vh;font-family:var(--font-sans);color:var(--color-text);background-color:var(--color-white);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}ul,ol{list-style:none}img{max-width:100%;height:auto;display:block}button{cursor:pointer;background:0 0;border:none;outline:none;font-family:inherit}h1,h2,h3,h4,h5,h6{color:var(--color-text);font-weight:700;line-height:1.3}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}.section{padding:var(--section-padding)}@media (width<=768px){.section{padding:var(--section-padding-mobile)}}.section-header{text-align:center;margin-bottom:56px}.section-tag{background:var(--color-primary-light);color:var(--color-primary);border-radius:var(--radius-full);letter-spacing:.02em;margin-bottom:16px;padding:6px 18px;font-size:13px;font-weight:600;display:inline-block}.section-title{color:var(--color-text);letter-spacing:-.02em;margin-bottom:14px;font-size:38px;font-weight:800}.section-subtitle{color:var(--color-text-muted);max-width:600px;margin:0 auto;font-size:18px;line-height:1.7}@media (width<=768px){.section-header{margin-bottom:40px}.section-title{font-size:28px}.section-subtitle{padding:0 8px;font-size:15px}}.btn{border-radius:var(--radius-full);transition:all var(--transition-base);white-space:nowrap;justify-content:center;align-items:center;gap:8px;padding:14px 32px;font-size:16px;font-weight:600;display:inline-flex}.btn-primary{background:var(--gradient-primary);color:var(--color-white);box-shadow:var(--shadow-blue)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 35px #2563eb40}.btn-outline{color:var(--color-white);background:0 0;border:2px solid #ffffff4d}.btn-outline:hover{background:#ffffff1a;border-color:#ffffff80}.btn-light{background:var(--color-white);color:var(--color-primary);box-shadow:var(--shadow-md)}.btn-light:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}@media (width<=768px){.btn{padding:12px 24px;font-size:14px}}.card{background:var(--color-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border);transition:all var(--transition-base);padding:32px}.card:hover{box-shadow:var(--shadow-lg);border-color:#0000;transform:translateY(-2px)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}#app{width:100%}