:root{--color-purple: #6C5CE7;--color-purple-light: #A78BFA;--color-purple-dark: #4C3FB8;--color-blue: #4A90D9;--color-blue-light: #60A5FA;--color-cyan: #00D2FF;--color-cyan-dark: #0098B3;--gradient-primary: linear-gradient(135deg, var(--color-purple), var(--color-blue));--gradient-hero: linear-gradient(135deg, #1a0533 0%, #0d1b3e 50%, #060d24 100%);--gradient-card: linear-gradient(135deg, rgba(108, 92, 231, .15), rgba(74, 144, 217, .1));--gradient-border: linear-gradient(135deg, var(--color-purple), var(--color-cyan));--gradient-text: linear-gradient(135deg, var(--color-purple-light), var(--color-cyan));--bg-deep: #060913;--bg-page: #060913;--bg-card: rgba(15, 15, 40, .6);--bg-card-hover: rgba(25, 25, 60, .8);--bg-section-alt: rgba(10, 10, 30, .4);--bg-nav: rgba(6, 9, 19, .9);--text-primary: #F0F0FF;--text-secondary: #A0A0C0;--text-muted: #606080;--text-heading: #F0F0FF;--border-subtle: rgba(108, 92, 231, .15);--border-card: rgba(108, 92, 231, .2);--glass-bg: rgba(15, 15, 40, .5);--glass-border: rgba(108, 92, 231, .2);--glass-blur: blur(20px);--shadow-card: 0 20px 60px rgba(0, 0, 0, .3);--shadow-nav: 0 4px 30px rgba(0, 0, 0, .3);--particle-opacity: .4;--nav-link: #C8C8E0;--nav-link-hover: #A78BFA;--nav-logo: #F0F0FF;--nav-dropdown-bg: rgba(6, 9, 19, .96);--nav-scrolled-bg: rgba(6, 9, 19, .9);--nav-mobile-bg: rgba(6, 9, 19, .98);--nav-mobile-btn: #F0F0FF;--section-gap: 8rem;--content-width: 1200px;--font-heading: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;--font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--ease-out-expo: cubic-bezier(.16, 1, .3, 1);--ease-out-back: cubic-bezier(.34, 1.56, .64, 1)}[data-theme=light]{--color-purple: #6C5CE7;--color-purple-light: #7C3AED;--color-purple-dark: #5B21B6;--color-blue: #3B82F6;--color-blue-light: #2563EB;--color-cyan: #0891B2;--color-cyan-dark: #0E7490;--gradient-primary: linear-gradient(135deg, #6C5CE7, #3B82F6);--gradient-hero: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 50%, #F8F9FC 100%);--gradient-card: linear-gradient(135deg, rgba(108, 92, 231, .06), rgba(59, 130, 246, .04));--gradient-border: linear-gradient(135deg, #6C5CE7, #0891B2);--gradient-text: linear-gradient(135deg, #6C5CE7, #0891B2);--bg-deep: #F8F9FC;--bg-page: #F8F9FC;--bg-card: rgba(255, 255, 255, .85);--bg-card-hover: rgba(255, 255, 255, .95);--bg-section-alt: #F1F5F9;--bg-nav: rgba(248, 249, 252, .9);--bg-mobile-menu: rgba(248, 249, 252, .98);--text-primary: #1A1A2E;--text-secondary: #4A4A6A;--text-muted: #6B7280;--text-heading: #0F0F23;--border-subtle: rgba(108, 92, 231, .12);--border-card: rgba(108, 92, 231, .15);--glass-bg: rgba(255, 255, 255, .75);--glass-border: rgba(108, 92, 231, .15);--glass-blur: blur(20px);--shadow-card: 0 4px 24px rgba(0, 0, 0, .06);--shadow-nav: 0 2px 20px rgba(0, 0, 0, .06);--particle-opacity: .08;--nav-link: #2D2D4A;--nav-link-hover: #6C5CE7;--nav-logo: #1A1A2E;--nav-dropdown-bg: rgba(255, 255, 255, .96);--nav-scrolled-bg: rgba(248, 249, 252, .9);--nav-mobile-bg: rgba(248, 249, 252, .98);--nav-mobile-btn: #1A1A2E}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);background:var(--bg-page);color:var(--text-primary);line-height:1.6;overflow-x:hidden;transition:background-color .3s ease,color .3s ease}#particle-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:var(--particle-opacity, .4);transition:opacity .4s ease}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2}h1{font-size:clamp(2.5rem,5vw,4.5rem)}h2{font-size:clamp(2rem,4vw,3rem)}h3{font-size:clamp(1.25rem,2vw,1.75rem)}p{color:var(--text-secondary)}a{color:var(--color-purple-light);text-decoration:none;transition:color .3s}a:hover{color:var(--color-cyan)}.container{max-width:var(--content-width);margin:0 auto;padding:0 2rem}.section{padding:var(--section-gap) 0;position:relative;z-index:1}.gradient-text{background:var(--gradient-text);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.glass-card{background:var(--glass-bg);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:16px;padding:2rem;transition:all .4s var(--ease-out-expo)}.glass-card:hover{background:var(--bg-card-hover);border-color:#6c5ce766;transform:translateY(-4px);box-shadow:0 20px 60px #6c5ce726}.btn-primary{display:inline-flex;align-items:center;gap:.5rem;background:var(--gradient-primary);color:#fff;padding:.875rem 2rem;border-radius:50px;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:all .3s var(--ease-out-expo);position:relative;overflow:hidden}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 40px #6c5ce766;color:#fff}.btn-outline{display:inline-flex;align-items:center;gap:.5rem;background:transparent;color:var(--text-primary);padding:.875rem 2rem;border-radius:50px;font-weight:600;font-size:1rem;border:1px solid var(--glass-border);cursor:pointer;transition:all .3s var(--ease-out-expo)}.btn-outline:hover{border-color:var(--color-purple);background:#6c5ce71a;color:#fff}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}.section-header{text-align:center;margin-bottom:4rem}.section-header h2{margin-bottom:1rem}.section-header .subtitle{font-size:1.125rem;color:var(--text-muted);max-width:600px;margin:0 auto}.section-tag{display:inline-block;background:#6c5ce726;color:var(--color-purple-light);padding:.375rem 1rem;border-radius:50px;font-size:.875rem;font-weight:600;margin-bottom:1rem;letter-spacing:.05em}@media(max-width:1024px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.container{padding:0 1.25rem}:root{--section-gap: 5rem}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:var(--color-purple-dark);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--color-purple)}.glass-card,.site-header,.btn-primary,.btn-outline,a,p,h1,h2,h3,h4,h5,h6,span{transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease}.theme-toggle .icon-sun{display:none}.theme-toggle .icon-moon,html[data-theme=dark] .theme-toggle .icon-sun{display:block}html[data-theme=dark] .theme-toggle .icon-moon{display:none}