@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap";.error-boundary{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:2rem}.error-container{background:#fff;border-radius:16px;padding:3rem;max-width:600px;text-align:center;box-shadow:0 20px 60px #0000004d;animation:slideIn .5s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.error-container h1{font-size:3rem;margin:0 0 1rem;color:#333}.error-container h2{font-size:1.5rem;margin:0 0 1.5rem;color:#666;font-weight:600}.error-message{font-size:1.1rem;color:#555;line-height:1.6;margin-bottom:2rem}.error-details{text-align:left;margin:2rem 0;padding:1rem;background:#f5f5f5;border-radius:8px;border:1px solid #ddd}.error-details summary{cursor:pointer;font-weight:600;color:#667eea;margin-bottom:.5rem}.error-details pre{margin-top:1rem;font-size:.9rem;color:#d32f2f;white-space:pre-wrap;word-break:break-word}.reset-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:1rem 2rem;font-size:1.1rem;font-weight:600;border-radius:50px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #667eea4d}.reset-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.reset-button:active{transform:translateY(0)}@media(max-width:768px){.error-container{padding:2rem}.error-container h1{font-size:2.5rem}.error-container h2{font-size:1.25rem}.error-message{font-size:1rem}}.language-switcher{position:relative;z-index:1000}.language-btn{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:8px;color:#fff;cursor:pointer;font-size:14px;font-weight:500;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.language-btn:hover{background:#ffffff26;border-color:#ffffff4d;transform:translateY(-2px)}.current-lang{display:flex;align-items:center;gap:6px}.dropdown-arrow{font-size:10px;margin-left:4px;transition:transform .3s ease}.language-overlay{position:fixed;inset:0;background:transparent;z-index:998}.language-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:180px;background:#141428f2;border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:8px;box-shadow:0 8px 32px #0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);animation:slideDown .3s ease;z-index:999}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.language-option{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;background:transparent;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s ease;position:relative}.language-option:hover{background:#ffffff1a}.language-option.active{background:#6496ff33;color:#64b5f6}.lang-flag{font-size:20px}.lang-name{flex:1;text-align:left}.checkmark{color:#64b5f6;font-size:16px;font-weight:700}@media(max-width:768px){.language-btn{padding:6px 12px;font-size:13px}.current-lang{gap:4px}.language-dropdown{min-width:160px}.language-option{padding:8px 10px;font-size:13px}}@media(max-width:480px){.current-lang span:not(.lang-flag){display:none}.language-btn{padding:8px}}.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:1.5rem 0;transition:all .3s ease;background:transparent}.navbar.scrolled{background:#0a0a0ae6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem 0;border-bottom:1px solid var(--color-border)}.navbar-container{display:flex;justify-content:space-between;align-items:center}.navbar-logo{font-family:var(--font-display);font-size:1.5rem;font-weight:700;letter-spacing:.05em;color:#fff}.navbar-desktop{display:none}@media(min-width:768px){.navbar-desktop{display:flex;gap:2rem;align-items:center}}.navbar-mobile-actions{display:flex;align-items:center;gap:1rem}@media(min-width:768px){.navbar-mobile-actions{display:none}}.nav-link{font-size:.9rem;font-weight:500;color:#a1a1aa;position:relative}.nav-link:hover,.nav-link.active{color:#fff}.nav-link:after{content:"";position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--color-primary);transition:width .3s ease}.nav-link.active:after{width:100%}.navbar-mobile-toggle{display:block;background:none;color:#fff}@media(min-width:768px){.navbar-mobile-toggle{display:none}}.navbar-mobile{position:fixed;top:0;right:-100%;width:80%;height:100vh;background:var(--color-surface);padding:5rem 2rem;display:flex;flex-direction:column;gap:2rem;transition:right .3s ease;z-index:999;box-shadow:-5px 0 15px #00000080}.navbar-mobile.open{right:0}.mobile-nav-link{font-size:1.2rem;font-weight:600;color:var(--color-text-muted)}.mobile-nav-link.active{color:var(--color-primary)}.footer{background:var(--color-surface);padding:4rem 0 2rem;border-top:1px solid var(--color-border);margin-top:auto}.footer-container{display:grid;grid-template-columns:1fr;gap:3rem;margin-bottom:3rem}@media(min-width:768px){.footer-container{grid-template-columns:1fr 2fr}}.footer-brand .footer-logo{font-size:2rem;margin-bottom:1rem;color:var(--color-text-main)}.footer-desc{color:var(--color-text-muted);font-size:.9rem;line-height:1.6}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}@media(min-width:768px){.footer-links{grid-template-columns:repeat(3,1fr)}}.footer-column h3{font-size:1rem;margin-bottom:1.5rem;color:var(--color-text-main)}.footer-column a,.footer-column p{display:block;color:var(--color-text-muted);margin-bottom:.8rem;font-size:.9rem}.footer-column a:hover{color:var(--color-primary)}.footer-bottom{padding-top:2rem;border-top:1px solid var(--color-border);text-align:center;color:var(--color-text-muted);font-size:.8rem}:root{--color-bg: #0a0a0a;--color-surface: #121212;--color-surface-hover: #1e1e1e;--color-primary: #0066cc;--color-primary-hover: #0052a3;--color-accent: #00d4ff;--color-text-main: #ffffff;--color-text-muted: #a1a1aa;--color-border: #27272a;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 2rem;--spacing-lg: 4rem;--spacing-xl: 8rem;--font-sans: "Inter", sans-serif;--font-display: "Outfit", sans-serif}@media(prefers-color-scheme:light){:root{--color-bg: #ffffff;--color-surface: #f3f4f6;--color-surface-hover: #e5e7eb;--color-text-main: #111827;--color-text-muted: #6b7280;--color-border: #e5e7eb}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text-main);line-height:1.6;-webkit-font-smoothing:antialiased}body:lang(zh),body:lang(zh-CN),body:lang(zh-TW){font-family:"Noto Sans SC",var(--font-sans),sans-serif}body:lang(ja){font-family:"Noto Sans JP",var(--font-sans),sans-serif}body:lang(ko){font-family:var(--font-sans),-apple-system,BlinkMacSystemFont,"Malgun Gothic",sans-serif;word-break:keep-all;word-wrap:break-word}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.2;color:var(--color-text-main)}h1:lang(zh),h1:lang(zh-CN),h1:lang(zh-TW),h2:lang(zh),h2:lang(zh-CN),h2:lang(zh-TW),h3:lang(zh),h3:lang(zh-CN),h3:lang(zh-TW),h4:lang(zh),h4:lang(zh-CN),h4:lang(zh-TW),h5:lang(zh),h5:lang(zh-CN),h5:lang(zh-TW),h6:lang(zh),h6:lang(zh-CN),h6:lang(zh-TW){font-family:"Noto Sans SC",var(--font-display),sans-serif}h1:lang(ja),h2:lang(ja),h3:lang(ja),h4:lang(ja),h5:lang(ja),h6:lang(ja){font-family:"Noto Sans JP",var(--font-display),sans-serif}a{text-decoration:none;color:inherit;transition:color .2s ease}button{font-family:inherit;cursor:pointer;border:none;outline:none}.container{max-width:1280px;margin:0 auto;padding:0 var(--spacing-sm)}.section{padding:var(--spacing-xl) 0}.text-gradient{background:linear-gradient(135deg,var(--color-text-main) 0%,var(--color-text-muted) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.text-accent-gradient{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:4px;font-weight:600;transition:all .3s ease}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover);transform:translateY(-1px)}.btn-outline{border:1px solid var(--color-border);background:transparent;color:var(--color-text-main)}.btn-outline:hover{border-color:var(--color-text-main);background:var(--color-surface)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .8s ease-out forwards}