:root{--color-black: #000000;--color-white: #ffffff;--color-cream: #faf9f7;--color-text-primary: #000000;--color-text-body: #333333;--color-text-secondary: #666666;--color-text-muted: #999999;--color-border: #e0e0e0;--color-border-light: #eeeeee;--color-bg-gray: #f5f5f5;--color-bg-cream: #faf9f7;--color-accent: #000000;--color-blue: #3B82F6;--color-green: #059669;--color-red: #EF4444;--color-orange: #EA580C;--color-green-bg: #ECFDF5;--color-red-bg: #FEF2F2;--color-orange-bg: #FFF7ED;--color-blue-bg: #EFF6FF;--font-sans: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono: "Consolas", "Courier New", "Microsoft YaHei Mono", monospace;--text-hero: 4.5rem;--text-h1: 2.25rem;--text-h2: 2rem;--text-h3: 1.25rem;--text-body-l: 1.125rem;--text-body-m: .9375rem;--text-body: .875rem;--text-caption: .75rem;--text-small: .6875rem;--leading-tight: 1.2;--leading-normal: 1.8;--leading-relaxed: 2.2;--fw-light: 300;--fw-regular: 400;--fw-medium: 500;--fw-semibold: 600;--ls-hero: 16px;--ls-heading: 6px;--ls-subtitle: 4px;--ls-nav: 2px;--ls-btn: 3px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--space-30: 7.5rem;--radius-sm: 2px;--radius-md: 4px;--radius-lg: 8px;--radius-full: 9999px;--shadow-sm: 0 1px 0 rgba(0, 0, 0, .05);--shadow-card: 0 2px 8px rgba(0, 0, 0, .06);--shadow-card-hover: 0 10px 40px rgba(0, 0, 0, .1);--shadow-modal: 0 20px 60px rgba(0, 0, 0, .15);--shadow-focus: 0 0 0 2px rgba(0, 0, 0, .15);--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .6s ease;--header-height: 80px;--max-width: 1400px;--section-padding: 120px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:var(--text-body);line-height:var(--leading-normal);color:var(--color-text-body);background:var(--color-white);min-height:100vh}a{color:var(--color-text-primary);text-decoration:none;transition:opacity var(--transition-normal)}a:hover{opacity:.7}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit}ul,ol{list-style:none}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 60px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.section-header{text-align:center;margin-bottom:80px}.section-header h2{font-size:var(--text-h2);font-weight:var(--fw-light);letter-spacing:var(--ls-heading);margin-bottom:16px;text-transform:uppercase;color:var(--color-text-primary)}.section-header .subtitle{color:var(--color-text-muted);font-size:var(--text-body);letter-spacing:var(--ls-subtitle)}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInScale{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes skeleton{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes slideUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.animate-fadein{animation:fadeIn .6s ease forwards}@media(max-width:1200px){.container{padding:0 40px}}@media(max-width:768px){.container{padding:0 20px}:root{--text-hero: 2.5rem;--section-padding: 80px}.section-header{margin-bottom:48px}}