.nxg{--g-ink: #EDEEF0;--g-ink2: #B0B4BA;--g-ink3: #9097A0;--g-line: rgb(255 255 255 / .1);--g-line2: rgb(255 255 255 / .18);--g-surface: rgb(255 255 255 / .035);--g-raised: rgb(255 255 255 / .06);--g-accent: #1FE0C0;--g-on-accent: #04130F;--g-blue: #8FB0FF;--g-ease: cubic-bezier(.16, 1, .3, 1);color:var(--g-ink);padding-block:8px clamp(48px,7vw,96px);overflow-x:clip}.nxg-shell{inline-size:min(1200px,100% - 2 * clamp(16px,4vw,24px));margin-inline:auto}.nxg-shell--read{inline-size:min(820px,100% - 2 * clamp(16px,4vw,24px))}.nxg a{color:inherit}.nxg-visually-hidden{position:absolute!important;inline-size:1px;block-size:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.nxg-muted{color:var(--g-ink3)}.nxg-link{color:var(--g-accent)!important;text-decoration:none;font-weight:600}.nxg-link:hover{text-decoration:underline}.nxg :is(a,button,input,summary):focus-visible{outline:2px solid var(--g-accent);outline-offset:3px}.nxg-crumbs{display:flex;flex-wrap:wrap;gap:8px;padding-block:18px 8px;font-size:13px;color:var(--g-ink3)}.nxg-crumbs a{text-decoration:none}.nxg-crumbs a:hover{color:var(--g-ink);text-decoration:underline}.nxg-title{margin:10px 0 0;font:700 clamp(1.9rem,4.4vw,3rem)/1.1 var(--font-display, inherit);letter-spacing:-.025em;text-wrap:balance;overflow-wrap:anywhere}:is(:lang(zh),:lang(ja),:lang(ko)) .nxg-title{letter-spacing:0;line-height:1.25}.nxg-head{padding-block:clamp(10px,2.5vw,24px) clamp(20px,3vw,32px);border-block-end:1px solid var(--g-line)}.nxg-overline{margin:0;font:600 13px/1.4 var(--font-ui, inherit)}.nxg-overline a{color:var(--g-blue);text-decoration:none}.nxg-overline a:hover{text-decoration:underline}.nxg-aka{margin:10px 0 0;font-size:14px;color:var(--g-ink3)}.nxg-aka span{color:var(--g-ink2)}.nxg-def{margin-block-start:20px;padding:18px 20px;border:1px solid rgb(31 224 192 / .35);border-radius:16px;background:linear-gradient(180deg,#1fe0c014,#1fe0c005)}.nxg-def__label{margin:0;font:650 12px/1.2 var(--font-ui, inherit);letter-spacing:.06em;text-transform:uppercase;color:var(--g-accent)}.nxg-def__text{margin:8px 0 0;font-size:clamp(1.05rem,1.6vw,1.2rem);line-height:1.6;color:var(--g-ink)}:is(:lang(zh),:lang(ja),:lang(ko)) .nxg-def__text{line-height:1.85}.nxg-note{margin:12px 0 0;font-size:13px}.nxg-sec{padding-block:clamp(22px,3.5vw,36px) 0}.nxg-sec h2{margin:0 0 12px;font:680 clamp(1.25rem,2.2vw,1.55rem)/1.25 var(--font-display, inherit);letter-spacing:-.01em}.nxg-sec>p,.nxg-example p{margin:0 0 14px;font-size:1.02rem;line-height:1.75;color:var(--g-ink2);max-inline-size:70ch}:is(:lang(zh),:lang(ja),:lang(ko)) :is(.nxg-sec>p,.nxg-example p){line-height:1.9}.nxg-term-link{color:var(--g-ink)!important;text-decoration:underline;text-decoration-color:#1fe0c08c;text-underline-offset:3px}.nxg-term-link:hover{text-decoration-color:var(--g-accent)}.nxg-example{margin-block-start:18px;padding:16px 18px;border-inline-start:3px solid var(--g-blue);border-radius:0 12px 12px 0;background:var(--g-surface)}[dir=rtl] .nxg-example{border-radius:12px 0 0 12px}.nxg-example__label{margin:0 0 6px!important;font:650 12px/1.2 var(--font-ui, inherit)!important;letter-spacing:.06em;text-transform:uppercase;color:var(--g-blue)!important}.nxg-example p:last-child{margin-block-end:0}.nxg-mistakes{display:grid;gap:10px;margin:0;padding:0;list-style:none}.nxg-mistakes li{position:relative;padding-inline-start:28px;line-height:1.65;color:var(--g-ink2)}.nxg-mistakes li:before{content:"!";position:absolute;inset-inline-start:0;inset-block-start:2px;display:grid;place-items:center;inline-size:18px;block-size:18px;border-radius:50%;background:#f8717126;color:#f87171;font:700 11px/1 var(--font-ui, inherit)}.nxg-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}.nxg-step{display:grid;gap:4px;align-content:start;min-block-size:44px;padding:16px;border:1px solid var(--g-line);border-radius:14px;background:var(--g-surface);text-decoration:none;transition:border-color .2s var(--g-ease),background-color .2s var(--g-ease)}.nxg-step:hover{border-color:var(--g-line2);background:var(--g-raised)}.nxg-step__kind{font:650 12px/1.3 var(--font-ui, inherit);color:var(--g-accent)}.nxg-step b{font-size:15px;line-height:1.4}.nxg-step small{font-size:13px;color:var(--g-ink3);line-height:1.4}.nxg-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 20px;margin-block-start:12px;padding:16px 18px;border:1px solid var(--g-line2);border-radius:14px;background:var(--g-raised)}.nxg-cta__text p{margin:0;font-size:14px;line-height:1.5;color:var(--g-ink2)}.nxg-cta__text .nxg-cta__title{display:flex;align-items:center;gap:10px;margin-block-end:4px;font:650 15px/1.3 var(--font-ui, inherit);color:var(--g-ink)}.nxg-cta__actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.nxg-btn{display:inline-flex;align-items:center;justify-content:center;min-block-size:44px;padding:0 18px;border-radius:12px;background:var(--g-accent);color:var(--g-on-accent)!important;font:650 15px/1.2 var(--font-ui, inherit);text-decoration:none;white-space:nowrap;transition:background-color .2s var(--g-ease)}.nxg-btn:hover{background:#4aebd0}.nxg-code{display:inline-flex;align-items:center;gap:8px;min-block-size:44px;padding:0 4px 0 12px;border:1px dashed var(--g-line2);border-radius:10px;font-size:13px;color:var(--g-ink2)}.nxg-code code{font:600 14px/1 var(--font-code, ui-monospace, monospace);color:var(--g-ink)}.nxg-code button{min-block-size:36px;padding:0 10px;border:0;border-radius:8px;background:var(--g-surface);color:var(--g-ink);font:600 12px/1 var(--font-ui, inherit);cursor:pointer}.nxg-code button:hover{background:#ffffff1f}.nxg-faq details{border-block-end:1px solid var(--g-line)}.nxg-faq summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-block-size:48px;padding-block:12px;cursor:pointer;list-style:none;font-weight:600;line-height:1.45}.nxg-faq summary::-webkit-details-marker{display:none}.nxg-faq summary:after{content:"+";flex:none;font:500 20px/1 var(--font-ui, inherit);color:var(--g-ink3)}.nxg-faq details[open] summary:after{content:"−"}.nxg-faq details p{margin:0 0 16px;line-height:1.7;color:var(--g-ink2)}.nxg-related ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:0 0 18px;padding:0;list-style:none}.nxg-related a{display:grid;gap:4px;block-size:100%;padding:14px 16px;border:1px solid var(--g-line);border-radius:12px;text-decoration:none}.nxg-related a:hover{border-color:var(--g-line2);background:var(--g-surface)}.nxg-related b{font-size:15px}.nxg-related small{font-size:13px;line-height:1.45;color:var(--g-ink3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.nxg-hubhead{padding-block:clamp(10px,2.5vw,24px) 18px}.nxg-lead{margin:14px 0 0;max-inline-size:70ch;font-size:clamp(1rem,1.5vw,1.12rem);line-height:1.65;color:var(--g-ink2)}.nxg-tools{display:grid;gap:14px;padding-block:8px 6px}.nxg-search{display:flex;align-items:center;gap:10px;max-inline-size:560px;min-block-size:48px;padding:0 14px;border:1px solid var(--g-line2);border-radius:12px;background:var(--g-surface);color:var(--g-ink3)}.nxg-search input{flex:1;min-inline-size:0;border:0;background:transparent;color:var(--g-ink);font:500 16px/1.2 var(--font-ui, inherit);outline:none}.nxg-search:focus-within{border-color:var(--g-accent)}.nxg-chips{display:flex;flex-wrap:wrap;gap:8px}.nxg-chips button{display:inline-flex;align-items:center;gap:6px;min-block-size:40px;padding:0 12px;border:1px solid var(--g-line);border-radius:999px;background:transparent;color:var(--g-ink2);font:600 13px/1 var(--font-ui, inherit);cursor:pointer;scroll-margin-block-start:96px}.nxg-chips button small{font-weight:500;color:var(--g-ink3)}.nxg-chips button[aria-pressed=true]{border-color:var(--g-accent);background:#1fe0c01f;color:var(--g-ink)}.nxg-az{display:flex;flex-wrap:wrap;align-items:center;gap:2px;font:600 13px/1 var(--font-code, ui-monospace, monospace)}.nxg-az__label{margin-inline-end:8px;font:600 12px/1 var(--font-ui, inherit);color:var(--g-ink3)}.nxg-az a,.nxg-az>span[aria-hidden]{display:grid;place-items:center;min-inline-size:30px;block-size:34px;border-radius:8px;text-decoration:none}.nxg-az a:hover{background:var(--g-raised);color:var(--g-accent)}.nxg-az>span[aria-hidden]{color:#ffffff38}.nxg-count{margin:14px 0 0;font-size:13px}.nxg-group{padding-block-start:22px;scroll-margin-block-start:96px}.nxg-group__letter{margin:0 0 10px;padding-block-end:6px;border-block-end:1px solid var(--g-line);font:700 1.1rem/1 var(--font-code, ui-monospace, monospace);color:var(--g-accent)}.nxg-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:8px 12px;margin:0;padding:0;list-style:none}.nxg-list a{display:grid;gap:3px;block-size:100%;padding:12px 14px;border-radius:12px;text-decoration:none;transition:background-color .2s var(--g-ease)}.nxg-list a:hover{background:var(--g-surface)}.nxg-list b{font-size:15px;line-height:1.35}.nxg-list__en{font-size:12px;color:var(--g-blue)}.nxg-list small{font-size:13px;line-height:1.45;color:var(--g-ink3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.nxg-empty{padding-block:32px;color:var(--g-ink3)}.nxg--missing h1{margin-block:48px 12px}@media(max-width:560px){.nxg-cta{align-items:stretch}.nxg-cta__actions{inline-size:100%}.nxg-cta__actions .nxg-btn{flex:1}.nxg-list{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.nxg *{transition:none!important}}