:root{--bg: #0A0E1A;--bg-2: #101626;--panel: #161D2E;--panel-2: #1C2540;--ink: #F2EFE6;--ink-2: #B9C0CF;--ink-3: #6E7A92;--ink-4: #3A4360;--accent: #5EFF9B;--accent-2: #FF7A59;--accent-3: #B59CFF;--warn: #FFD166;--rule: #1E2A44;--rule-2: #2A3658;--font-display: "Bricolage Grotesque", "Noto Serif SC", system-ui, sans-serif;--font-mono: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;--font-serif: "Noto Serif SC", "Source Han Serif SC", serif;--font-cn: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--r-xs: 4px;--r-sm: 8px;--r-md: 12px;--r-lg: 16px;--r-xl: 24px;--r-pill: 999px;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 24px;--sp-6: 32px;--sp-7: 48px;--sp-8: 64px;--sp-9: 96px;--sp-10: 128px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 8px 24px rgba(0, 0, 0, .3);--shadow-lg: 0 12px 36px rgba(0, 0, 0, .4);--shadow-glow: 0 0 24px rgba(94, 255, 155, .45);--shadow-glow-2: 0 0 24px rgba(255, 122, 89, .45);--maxw: 1200px;--maxw-narrow: 960px;--nav-h: 72px;--ease-out: cubic-bezier(.22, 1, .36, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1)}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}body{min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit;color:inherit}button{background:transparent;border:none;cursor:pointer}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}a{color:inherit;text-decoration:none}ul,ol{list-style:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::selection{background:var(--accent);color:var(--bg)}body{font-family:var(--font-cn);font-size:16px;color:var(--ink);background:var(--bg);background-image:radial-gradient(1200px 600px at 80% -10%,rgba(94,255,155,.08),transparent 60%),radial-gradient(900px 600px at 0% 30%,rgba(255,122,89,.06),transparent 60%),linear-gradient(180deg,var(--bg),#050810 100%);background-attachment:fixed;overflow-x:hidden}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;color:var(--ink)}.h-mono{font-family:var(--font-mono);letter-spacing:0}.gradient-text{background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.container{width:min(100% - 32px,var(--maxw));margin-inline:auto}.container--narrow{width:min(100% - 32px,var(--maxw-narrow));margin-inline:auto}.section{padding-block:clamp(64px,9vw,128px)}.section--tight{padding-block:clamp(48px,6vw,80px)}.term{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 12px;font-family:var(--font-mono);font-weight:700;font-size:14px;color:var(--accent);background:#5eff9b14;border:1px solid rgba(94,255,155,.25);border-left:4px solid var(--accent);border-radius:var(--r-sm);letter-spacing:.02em}.term:before{content:">";color:var(--accent-2)}.term .cursor{display:inline-block;width:8px;height:16px;background:var(--accent);margin-left:2px;animation:blink 1s step-end infinite}@keyframes blink{50%{opacity:0}}.eyebrow{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--ink-2);letter-spacing:.18em;text-transform:uppercase}.noise:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:1;opacity:.04;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}.reveal.is-visible{opacity:1;transform:none}.reveal[data-d="1"]{transition-delay:80ms}.reveal[data-d="2"]{transition-delay:.16s}.reveal[data-d="3"]{transition-delay:.24s}.reveal[data-d="4"]{transition-delay:.32s}.reveal[data-d="5"]{transition-delay:.4s}.reveal[data-d="6"]{transition-delay:.48s}.reveal[data-d="7"]{transition-delay:.56s}.reveal[data-d="8"]{transition-delay:.64s}.hide-mobile{display:none}@media (min-width: 768px){.hide-mobile{display:initial}.hide-desktop{display:none}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);background:#0a0e1ab3;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .25s var(--ease-out),box-shadow .25s var(--ease-out)}.nav.is-scrolled{border-bottom-color:var(--rule);box-shadow:0 4px 24px #00000040}.nav__inner{display:flex;align-items:center;gap:24px;width:min(100% - 32px,var(--maxw));margin-inline:auto;height:100%}.nav__brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;font-size:18px;color:var(--ink);letter-spacing:-.01em}.nav__brand-logo{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;color:var(--bg);font-family:var(--font-mono);font-weight:800;font-size:14px;position:relative;overflow:hidden}.nav__brand-logo:after{content:"";position:absolute;width:8px;height:8px;background:var(--bg);border-radius:50%;bottom:6px;right:6px;opacity:.6}.nav__brand-zh{display:inline-block;margin-left:6px;font-family:var(--font-cn);font-size:16px;font-weight:700;color:var(--ink-2);letter-spacing:0}.nav__brand-sub{display:block;font-family:var(--font-mono);font-size:10px;font-weight:500;color:var(--ink-3);letter-spacing:.16em;margin-top:2px;text-transform:none}.nav__menu{display:none;gap:4px;margin-left:16px}.nav__menu a{position:relative;padding:8px 14px;font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--ink-2);border-radius:6px;transition:color .18s var(--ease-in-out),background .18s var(--ease-in-out)}.nav__menu a:hover{color:var(--ink);background:#ffffff0a}.nav__menu a.is-active{color:var(--ink)}.nav__menu a.is-active:after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--accent);border-radius:2px;box-shadow:0 0 8px var(--accent)}.nav__cta{margin-left:auto;display:flex;gap:12px;align-items:center}.nav__toggle{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:8px;border:1px solid var(--rule);background:var(--bg-2)}.nav__toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}.nav__toggle span:before,.nav__toggle span:after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}.nav__toggle span:before{top:-6px}.nav__toggle span:after{top:6px}@media (min-width: 900px){.nav__menu{display:inline-flex}.nav__toggle{display:none}}.drawer{display:none;position:fixed;top:var(--nav-h);right:0;bottom:0;left:auto;width:min(82vw,360px);height:calc(100vh - var(--nav-h));background:var(--bg);background-color:#0a0e1a;z-index:60;padding:32px 28px;transform:translate(20px);opacity:0;transition:transform .28s var(--ease-out),opacity .22s var(--ease-out);box-shadow:-20px 0 60px -20px #0009;overflow-y:auto;-webkit-overflow-scrolling:touch}.drawer.is-open{display:block;transform:translate(0);opacity:1}.drawer a{display:block;padding:18px 4px;border-bottom:1px solid var(--rule);font-family:var(--font-mono);font-size:16px;color:var(--ink)}.drawer-mask{display:none;position:fixed;inset:var(--nav-h) 0 0 0;background:#0000008c;z-index:55;opacity:0;transition:opacity .28s var(--ease-out)}.drawer-mask.is-open{display:block;opacity:1}@media (min-width: 900px){.drawer,.drawer-mask{display:none!important}}.btn{display:inline-flex;align-items:center;gap:8px;padding:0 20px;height:40px;border-radius:var(--r-sm);font-family:var(--font-mono);font-weight:700;font-size:14px;letter-spacing:.02em;transition:transform .18s var(--ease-out),box-shadow .22s var(--ease-out),background .22s var(--ease-out),color .22s var(--ease-out);border:1px solid transparent;white-space:nowrap}.btn--lg{height:48px;padding:0 24px;font-size:15px}.btn--sm{height:32px;padding:0 14px;font-size:12px}.btn--primary{background:var(--accent);color:var(--bg);box-shadow:0 0 #5eff9b00}.btn--primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn--secondary{background:transparent;border-color:#f2efe640;color:var(--ink)}.btn--secondary:hover{border-color:var(--ink);background:#f2efe60d}.btn--ghost{background:transparent;color:var(--ink-2)}.btn--ghost:hover{color:var(--ink)}.btn .arrow{transition:transform .2s var(--ease-out);display:inline-block}.btn:hover .arrow{transform:translate(4px)}.card{position:relative;background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-lg);padding:var(--sp-5);transition:transform .22s var(--ease-out),box-shadow .22s var(--ease-out),border-color .22s var(--ease-out)}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--rule-2)}.card__num{font-family:var(--font-mono);font-weight:800;font-size:14px;color:var(--ink-3);letter-spacing:.18em}.card__num-lg{font-family:var(--font-display);font-weight:900;font-size:clamp(72px,10vw,128px);color:var(--ink);opacity:.06;line-height:.8;letter-spacing:-.04em}.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--r-pill);font-family:var(--font-mono);font-weight:700;font-size:12px;background:#ffffff0a;border:1px solid var(--rule);color:var(--ink-2)}.pill--accent{border-color:#5eff9b59;color:var(--accent);background:#5eff9b14}.pill--accent-2{border-color:#ff7a5959;color:var(--accent-2);background:#ff7a5914}.pill--warn{border-color:#ffd16659;color:var(--warn);background:#ffd16614}.bignums{display:grid;grid-template-columns:1fr;gap:16px;margin-top:48px}@media (min-width: 540px){.bignums{grid-template-columns:repeat(2,1fr)}}@media (min-width: 768px){.bignums{grid-template-columns:repeat(4,1fr);gap:20px}}.bignum{background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-lg);padding:28px 24px;position:relative;overflow:hidden}.bignum:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-2));transform:scaleX(0);transform-origin:0 0;transition:transform .6s var(--ease-out)}.bignum.is-visible:before,.reveal.is-visible.bignum:before{transform:scaleX(1)}.bignum__icon{color:var(--accent-2);margin-bottom:12px}.bignum__num{font-family:var(--font-mono);font-weight:900;font-size:clamp(36px,5vw,64px);color:var(--accent);letter-spacing:-.03em;line-height:1}.bignum__num small{font-size:.45em;color:var(--ink-2);margin-left:4px;font-weight:700}.bignum__label{margin-top:10px;font-family:var(--font-serif);font-size:13px;color:var(--ink-2)}.cta-strip{position:relative;padding:80px 0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);background:radial-gradient(600px 280px at 30% 50%,rgba(94,255,155,.1),transparent 70%),radial-gradient(600px 280px at 70% 50%,rgba(255,122,89,.1),transparent 70%),var(--bg);overflow:hidden}.cta-strip__inner{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}@media (min-width: 900px){.cta-strip__inner{grid-template-columns:2fr 1fr;align-items:center}}.cta-strip h2{font-family:var(--font-display);font-weight:900;font-size:clamp(32px,4.4vw,56px);line-height:1.1}.cta-strip p{margin-top:16px;font-family:var(--font-serif);color:var(--ink-2);font-size:17px;max-width:520px}.cta-strip__actions{display:flex;gap:12px;flex-wrap:wrap}.footer{background:var(--bg-2);border-top:1px solid var(--rule);padding:80px 0 40px;color:var(--ink-2)}.footer__top{display:grid;grid-template-columns:1fr;gap:32px;margin-bottom:48px;text-align:center}.footer__brand{grid-column:1 / -1}.footer__cols{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;grid-column:1 / -1}@media (min-width: 768px){.footer__top{grid-template-columns:1.6fr 1fr 1.2fr;gap:32px;text-align:left}.footer__brand,.footer__cols{grid-column:auto}.footer__cols{display:contents}}.footer__brand h4{font-family:var(--font-display);font-weight:800;font-size:22px;color:var(--ink)}.footer__brand p{color:var(--ink-2);font-size:14px;margin:12px auto 0;max-width:480px}.footer__col h5{font-family:var(--font-mono);font-weight:700;font-size:12px;color:var(--ink-3);letter-spacing:.18em;text-transform:uppercase;margin-bottom:16px}.footer__col a{display:block;padding:6px 0;font-family:var(--font-mono);font-size:13px;color:var(--ink-2);transition:color .18s var(--ease-out)}.footer__col a:hover{color:var(--accent)}.footer__bottom{border-top:1px solid var(--rule);padding-top:24px;display:flex;justify-content:center;align-items:center;gap:16px;font-family:var(--font-mono);font-size:12px;color:var(--ink-3);flex-wrap:wrap;text-align:center}.footer__bottom-meta{display:inline-flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}.footer__bottom-row{display:inline-flex;align-items:center;justify-content:center;gap:12px}@media (min-width: 768px){.footer__bottom{justify-content:space-between;text-align:left}}.footer__bottom-row--beian a{position:relative;padding-left:16px;transition:color .18s var(--ease-out)}.footer__bottom-row--beian a:hover{color:var(--accent)}.footer__bottom-row--beian a:before{content:"";position:absolute;left:0;top:50%;width:6px;height:6px;background:var(--accent);border-radius:50%;transform:translateY(-50%);opacity:.6}.term-panel{background:var(--bg-2);border:1px solid var(--rule);border-radius:var(--r-md);overflow:hidden}.term-panel__head{display:flex;align-items:center;gap:10px;height:36px;padding:0 14px;background:#00000040;border-bottom:1px solid var(--rule)}.term-panel__dots{display:flex;gap:6px}.term-panel__dots span{width:11px;height:11px;border-radius:50%;background:var(--ink-4)}.term-panel__dots span:nth-child(1){background:#ff5f56}.term-panel__dots span:nth-child(2){background:#ffbd2e}.term-panel__dots span:nth-child(3){background:#27c93f}.term-panel__file{font-family:var(--font-mono);font-size:12px;color:var(--ink-3);margin-left:8px}.term-panel__body{padding:20px}.faq details{background:var(--panel);border:1px solid var(--rule);border-radius:var(--r-md);overflow:hidden;transition:border-color .2s var(--ease-out)}.faq details+details{margin-top:12px}.faq details[open]{border-color:#5eff9b66}.faq summary{cursor:pointer;padding:18px 22px;font-family:var(--font-mono);font-weight:700;font-size:15px;color:var(--ink);display:flex;align-items:center;gap:14px;list-style:none;border-left:4px solid transparent;transition:border-color .2s var(--ease-out),background .2s var(--ease-out)}.faq summary::-webkit-details-marker{display:none}.faq summary:hover{background:#ffffff08;border-left-color:var(--accent)}.faq summary .qmark{font-family:var(--font-mono);font-weight:800;color:var(--accent);letter-spacing:.1em}.faq summary .sign{margin-left:auto;color:var(--ink-3);font-size:18px;transition:transform .2s var(--ease-out),color .2s var(--ease-out)}.faq details[open] summary .sign{transform:rotate(45deg);color:var(--accent)}.faq details .ans{padding:0 22px 22px 50px;color:var(--ink-2);font-size:15px;line-height:1.7}