:root{--color-primary-50: #e8eff8;--color-primary-100: #c5d5eb;--color-primary-200: #9fb9dc;--color-primary-300: #7596cb;--color-primary-400: #4f76b8;--color-primary-500: #2b58a6;--color-primary-600: #234687;--color-primary-700: #1c3669;--color-primary-800: #15274b;--color-primary-900: #0f1a2e;--color-accent-400: #00c9b8;--color-accent-500: #00a89a;--color-accent-600: #00877b;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--color-neutral-50: #fafafa;--color-neutral-100: #f4f4f5;--color-neutral-200: #e4e4e7;--color-neutral-300: #d4d4d8;--color-neutral-400: #a1a1aa;--color-neutral-500: #71717a;--color-neutral-600: #52525b;--color-neutral-700: #3f3f46;--color-neutral-800: #27272a;--color-neutral-900: #18181b;--color-bg-primary: #ffffff;--color-bg-secondary: #f8fafc;--color-bg-tertiary: #f1f5f9;--color-bg-dark: #0f172a;--color-text-primary: #1e293b;--color-text-secondary: #475569;--color-text-muted: #94a3b8;--color-text-inverse: #ffffff;--color-border-light: #e2e8f0;--color-border-medium: #cbd5e1;--color-border-dark: #94a3b8;--space-0: 0;--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;--font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.25rem;--text-xl: 1.5625rem;--text-2xl: 1.953rem;--text-3xl: 2.441rem;--text-4xl: 3.052rem;--text-5xl: 3.815rem;--text-6xl: 4.768rem;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--leading-none: 1;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--leading-loose: 2;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / .05);--transition-fast: .15s;--transition-normal: .3s;--transition-slow: .5s;--transition-timing: cubic-bezier(.4, 0, .2, 1);--container-sm: 640px;--container-md: 768px;--container-lg: 1024px;--container-xl: 1280px;--container-2xl: 1536px;--breakpoint-sm: 640px;--breakpoint-md: 768px;--breakpoint-lg: 1024px;--breakpoint-xl: 1280px;--breakpoint-2xl: 1536px;--z-dropdown: 100;--z-sticky: 200;--z-fixed: 300;--z-modal-backdrop: 400;--z-modal: 500;--z-popover: 600;--z-tooltip: 700}@media(prefers-color-scheme:dark){:root{--color-bg-primary: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-text-primary: #f1f5f9;--color-text-secondary: #cbd5e1;--color-text-muted: #64748b;--color-border-light: #334155;--color-border-medium: #475569}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;font-feature-settings:"cv11","ss01"}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body[data-lang=zh] .lang-en,body[data-lang=en] .lang-zh,body[data-lang=en] .name-cn,body[data-lang=zh] .switchable-en,body[data-lang=en] .switchable-zh,body[data-lang=zh] .lang-en-inline,body[data-lang=zh] .lang-en-block,body[data-lang=en] .lang-zh-inline,body[data-lang=en] .lang-zh-block{display:none}.lang-en-inline,.lang-zh-inline{display:inline}.lang-en-block,.lang-zh-block,.switchable-zh,.switchable-en{display:block}a{color:var(--color-primary-600);text-decoration:none;transition:color var(--transition-fast) var(--transition-timing)}a:hover{color:var(--color-primary-800)}img{max-width:100%;height:auto;display:block}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-3) var(--space-6);font-family:var(--font-sans);font-size:var(--text-sm);font-weight:var(--font-medium);line-height:var(--leading-none);border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast) var(--transition-timing)}.btn-primary{background-color:var(--color-primary-600);color:var(--color-text-inverse)}.btn-primary:hover{background-color:var(--color-primary-700);color:var(--color-text-inverse)}.btn-secondary{background-color:transparent;color:var(--color-primary-600);border-color:var(--color-primary-600)}.btn-secondary:hover{background-color:var(--color-primary-50)}.btn-accent{background-color:var(--color-accent-500);color:var(--color-text-inverse)}.btn-accent:hover{background-color:var(--color-accent-600);color:var(--color-text-inverse)}.card{background:var(--color-bg-primary);border-radius:var(--radius-lg);border:1px solid var(--color-border-light);box-shadow:var(--shadow-sm);transition:all var(--transition-normal) var(--transition-timing)}.card:hover{box-shadow:var(--shadow-md);border-color:var(--color-border-medium)}.container{width:100%;max-width:var(--container-xl);margin-left:auto;margin-right:auto;padding-left:var(--space-6);padding-right:var(--space-6)}@media(min-width:768px){.container{padding-left:var(--space-8);padding-right:var(--space-8)}}.prose{max-width:65ch}.prose h1,.prose h2,.prose h3,.prose h4,.prose h5,.prose h6{font-weight:var(--font-bold);line-height:var(--leading-tight);color:var(--color-text-primary)}.prose h1{font-size:var(--text-4xl);margin-bottom:var(--space-6)}.prose h2{font-size:var(--text-3xl);margin-bottom:var(--space-4)}.prose h3{font-size:var(--text-2xl);margin-bottom:var(--space-3)}.prose p{margin-bottom:var(--space-4);color:var(--color-text-secondary)}.prose ul,.prose ol{margin-bottom:var(--space-4);padding-left:var(--space-6)}.prose li{margin-bottom:var(--space-2)}.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}.text-center{text-align:center}.text-primary{color:var(--color-text-primary)}.text-secondary{color:var(--color-text-secondary)}.text-muted{color:var(--color-text-muted)}.text-accent{color:var(--color-accent-500)}.bg-primary{background-color:var(--color-bg-primary)}.bg-secondary{background-color:var(--color-bg-secondary)}.bg-tertiary{background-color:var(--color-bg-tertiary)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.mt-4{margin-top:var(--space-4)}.mt-8{margin-top:var(--space-8)}.mt-12{margin-top:var(--space-12)}.mb-4{margin-bottom:var(--space-4)}.mb-8{margin-bottom:var(--space-8)}.mb-12{margin-bottom:var(--space-12)}.py-8{padding-top:var(--space-8);padding-bottom:var(--space-8)}.py-12{padding-top:var(--space-12);padding-bottom:var(--space-12)}.py-16{padding-top:var(--space-16);padding-bottom:var(--space-16)}.px-4{padding-left:var(--space-4);padding-right:var(--space-4)}.grid{display:grid}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}@media(max-width:768px){.md\:grid-cols-2{grid-template-columns:repeat(1,minmax(0,1fr))}}@media(min-width:768px){.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.md\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}}.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:var(--z-sticky);background-color:var(--color-bg-primary);border-bottom:1px solid var(--color-border-light);backdrop-filter:blur(8px);background-color:#ffffffe6}.header-content[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;height:72px}.logo[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--space-3);color:var(--color-text-primary);text-decoration:none;transition:opacity var(--transition-fast) var(--transition-timing)}.logo[data-astro-cid-3ef6ksr2]:hover{opacity:.8}.logo-icon[data-astro-cid-3ef6ksr2]{width:40px;height:40px;color:var(--color-primary-600)}.logo-text[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column}.logo-title[data-astro-cid-3ef6ksr2]{font-size:var(--text-base);font-weight:var(--font-semibold);line-height:var(--leading-none)}.logo-subtitle[data-astro-cid-3ef6ksr2]{font-size:var(--text-xs);color:var(--color-text-secondary);line-height:var(--leading-none);margin-top:var(--space-1)}.header-actions[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-4);margin-left:auto}.nav[data-astro-cid-3ef6ksr2]{display:none}@media(min-width:768px){.nav[data-astro-cid-3ef6ksr2]{display:block}}.nav-list[data-astro-cid-3ef6ksr2]{display:flex;list-style:none;gap:var(--space-2)}.nav-link[data-astro-cid-3ef6ksr2]{display:block;padding:var(--space-2) var(--space-3);font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--color-text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast) var(--transition-timing)}.lang-switch[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--space-1);padding:var(--space-1);background-color:var(--color-bg-secondary);border:1px solid var(--color-border-light);border-radius:var(--radius-full)}.lang-btn[data-astro-cid-3ef6ksr2]{min-width:40px;padding:var(--space-1) var(--space-3);border:none;background:transparent;border-radius:var(--radius-full);color:var(--color-text-secondary);font-size:var(--text-xs);font-weight:var(--font-semibold);cursor:pointer}.lang-btn[data-astro-cid-3ef6ksr2].active{background-color:var(--color-primary-600);color:var(--color-text-inverse)}.nav-link[data-astro-cid-3ef6ksr2]:hover,.nav-link[data-astro-cid-3ef6ksr2].active{color:var(--color-primary-600);background-color:var(--color-primary-50)}.mobile-menu-btn[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:center;padding:var(--space-2);background:none;border:none;cursor:pointer;color:var(--color-text-primary);border-radius:var(--radius-md);transition:background-color var(--transition-fast) var(--transition-timing)}.mobile-menu-btn[data-astro-cid-3ef6ksr2]:hover{background-color:var(--color-neutral-100)}@media(min-width:768px){.mobile-menu-btn[data-astro-cid-3ef6ksr2]{display:none}}@media(max-width:767px){.header-actions[data-astro-cid-3ef6ksr2]{gap:var(--space-2)}}.footer[data-astro-cid-sz7xmlte]{background-color:var(--color-bg-dark);color:var(--color-neutral-300);padding:var(--space-16) 0 var(--space-8);margin-top:var(--space-24)}.footer-content[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:1fr;gap:var(--space-12);margin-bottom:var(--space-12)}@media(min-width:640px){.footer-content[data-astro-cid-sz7xmlte]{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.footer-content[data-astro-cid-sz7xmlte]{grid-template-columns:2fr 1fr 1fr 1fr}}.footer-section[data-astro-cid-sz7xmlte] h4[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--color-text-inverse);margin-bottom:var(--space-4);text-transform:uppercase;letter-spacing:.05em}.footer-logo[data-astro-cid-sz7xmlte]{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-4)}.logo-icon[data-astro-cid-sz7xmlte]{width:40px;height:40px;color:var(--color-neutral-300)}.footer-logo-text[data-astro-cid-sz7xmlte] h3[data-astro-cid-sz7xmlte]{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--color-text-inverse);margin:0}.footer-logo-text[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);color:var(--color-neutral-400);margin:var(--space-1) 0 0}.footer-description[data-astro-cid-sz7xmlte]{font-size:var(--text-sm);color:var(--color-neutral-400);line-height:var(--leading-relaxed);margin-bottom:var(--space-4)}.footer-contact[data-astro-cid-sz7xmlte]{display:flex;flex-direction:column;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-neutral-400)}.footer-links[data-astro-cid-sz7xmlte]{list-style:none;padding:0;margin:0}.footer-links[data-astro-cid-sz7xmlte] li[data-astro-cid-sz7xmlte]{margin-bottom:var(--space-2)}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-neutral-400);font-size:var(--text-sm);transition:color var(--transition-fast) var(--transition-timing)}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-text-inverse)}.social-links[data-astro-cid-sz7xmlte]{display:flex;gap:var(--space-3)}.social-link[data-astro-cid-sz7xmlte]{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background-color:var(--color-neutral-800);border-radius:var(--radius-full);color:var(--color-neutral-300);transition:all var(--transition-fast) var(--transition-timing)}.social-link[data-astro-cid-sz7xmlte]:hover{background-color:var(--color-primary-600);color:var(--color-text-inverse)}.social-link[data-astro-cid-sz7xmlte] svg[data-astro-cid-sz7xmlte]{width:20px;height:20px}.footer-bottom[data-astro-cid-sz7xmlte]{padding-top:var(--space-8);border-top:1px solid var(--color-neutral-800);text-align:center;font-size:var(--text-sm);color:var(--color-neutral-500)}.footer-bottom[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{margin:var(--space-2) 0}.footer-note[data-astro-cid-sz7xmlte]{font-size:var(--text-xs);color:var(--color-neutral-600)}