.nxbg{--g-ink: #EDEEF0;--g-ink2: #B4BAC2;--g-ink3: #8E96A1;--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-blue: #3D6BFF;--g-blue-hi: #5B82FF;--g-blue-text: #8FB0FF;--g-gold: #f5c542;--g-gold-hi: #ffe27a;--g-ease: cubic-bezier(.16, 1, .3, 1);color:var(--g-ink);padding-block-end:clamp(48px,7vw,96px);overflow-x:clip}.nxbg a{color:inherit}.nxbg-shell{inline-size:min(1200px,100% - 2 * clamp(16px,4vw,24px));margin-inline:auto}.nxbg-section{padding-block:clamp(36px,5vw,64px) 0}.nxbg h2{margin:0;font:700 clamp(1.5rem,3vw,2.1rem)/1.15 var(--font-display, inherit);letter-spacing:-.015em;text-wrap:balance}.nxbg h3{margin:0;font:650 1.05rem/1.3 var(--font-display, inherit)}.nxbg p{margin:0}.nxbg-lead{margin-block-start:10px!important;color:var(--g-ink2);font-size:1rem;line-height:1.6;max-inline-size:70ch}.nxbg-note{margin-block-start:14px!important;color:var(--g-ink2);font-size:.95rem;line-height:1.55;max-inline-size:80ch}:is(:lang(zh),:lang(ja),:lang(ko)) .nxbg h2,:is(:lang(zh),:lang(ja),:lang(ko)) .nxbg-title{letter-spacing:0}.nxbg-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-block-size:50px;padding:0 22px;border-radius:12px;font:650 15px/1.2 var(--font-ui, inherit);text-decoration:none;text-align:center;transition:background-color .2s var(--g-ease),transform .2s var(--g-ease)}.nxbg .nxbg-btn--primary{background:var(--g-blue);color:#fff;box-shadow:0 8px 28px -10px #3d6bffcc}.nxbg .nxbg-btn--primary:hover{background:var(--g-blue-hi)}.nxbg-btn--primary:active{transform:translateY(1px)}.nxbg-btn--ghost{border:1px solid var(--g-line2);color:var(--g-ink)}.nxbg-btn--ghost:hover{background:var(--g-raised)}.nxbg-arrow{transition:transform .2s var(--g-ease)}.nxbg-btn:hover .nxbg-arrow{transform:translate(3px)}.nxbg[dir=rtl] .nxbg-arrow{transform:scaleX(-1)}.nxbg :is(a,button,summary):focus-visible{outline:2px solid var(--g-blue-text);outline-offset:3px;border-radius:8px}.nxbg-hero{position:relative;isolation:isolate;border-block-end:1px solid var(--g-line);background:radial-gradient(50% 90% at 85% 35%,rgb(245 197 66 / .16),transparent 70%),radial-gradient(45% 70% at 10% 0%,rgb(61 107 255 / .16),transparent 70%)}.nxbg-hero__inner{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);align-items:center;gap:clamp(24px,4vw,64px);padding-block:clamp(28px,5vw,72px)}.nxbg-crumbs{display:flex;gap:8px;font-size:13px;color:var(--g-ink3);margin-block-end:18px}.nxbg-crumbs a{text-decoration:none;color:var(--g-ink2)}.nxbg-crumbs a:hover{color:var(--g-ink);text-decoration:underline}.nxbg-tag{display:flex;align-items:center;gap:8px;margin:0 0 8px;font:650 12.5px/1.4 var(--font-ui, inherit);letter-spacing:.08em;text-transform:uppercase;color:var(--g-gold)}.nxbg-tag img,.nxbg-tag svg{inline-size:20px;block-size:20px}:is(:lang(zh),:lang(ja),:lang(ko)) .nxbg-tag{letter-spacing:0;text-transform:none;font-size:13.5px}.nxbg-hot{display:inline-block;color:var(--g-gold-hi);text-shadow:0 0 8px rgb(255 214 90 / .9);animation:nxbg-twinkle 1.3s ease-in-out infinite}@keyframes nxbg-twinkle{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.82)}}.nxbg-title{margin:14px 0 0;font:750 clamp(2rem,5vw,3.6rem)/1.08 var(--font-display, inherit);letter-spacing:-.025em;text-wrap:balance}:is(:lang(zh),:lang(ja),:lang(ko)) .nxbg-title{line-height:1.2;font-size:clamp(1.9rem,4vw,3rem);word-break:keep-all;overflow-wrap:anywhere}.nxbg-sub{margin-block-start:18px!important;font-size:clamp(1rem,1.6vw,1.15rem);line-height:1.6;color:var(--g-ink2);max-inline-size:62ch}.nxbg-stats{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:22px 0 0;padding:0}.nxbg-stats li{display:grid;gap:2px;padding:10px 14px;border:1px solid var(--g-line2);border-radius:12px;background:var(--g-surface)}.nxbg-stats b{font:750 1.2rem/1.1 var(--font-display, inherit);color:var(--g-gold-hi);font-variant-numeric:tabular-nums}.nxbg-stats span{font-size:12.5px;color:var(--g-ink3)}.nxbg-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 14px;margin-block-start:24px}.nxbg-actions--center{justify-content:center}.nxbg-auto{flex-basis:100%;color:var(--g-ink2);font-size:.92rem;line-height:1.5}.nxbg-neutral{flex-basis:100%;color:var(--g-ink2);line-height:1.6;max-inline-size:62ch}.nxbg-hero__art{display:grid;place-items:center}.nxbg-art{inline-size:min(100%,340px);block-size:auto;filter:drop-shadow(0 20px 40px rgb(0 0 0 / .45))}.nxbg-art__spark{transform-box:fill-box;transform-origin:center;animation:nxbg-twinkle 1.6s ease-in-out infinite}.nxbg-art__spark--2{animation-delay:.5s}.nxbg-count{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-block-start:16px}.nxbg-count__label{font-size:13px;color:var(--g-ink3)}.nxbg-count__cells{display:flex;gap:8px;list-style:none;margin:0;padding:0;direction:ltr}.nxbg-count__cells li{display:grid;justify-items:center;min-inline-size:56px;padding:8px 6px;border:1px solid var(--g-line2);border-radius:10px;background:var(--g-surface)}.nxbg-count__cells b{font:750 1.35rem/1 var(--font-code, monospace);color:var(--g-gold-hi);font-variant-numeric:tabular-nums}.nxbg-count__cells span{font-size:11px;color:var(--g-ink3);margin-block-start:4px}.nxbg-count__end{font-size:13px;color:var(--g-ink2)}.nxbg-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;list-style:none;margin:22px 0 0;padding:0;counter-reset:none}.nxbg-step{display:flex;gap:14px;padding:18px;border:1px solid var(--g-line);border-radius:16px;background:var(--g-surface)}.nxbg-step__n{flex:none;display:grid;place-items:center;inline-size:36px;block-size:36px;border-radius:50%;background:#f5c54224;color:var(--g-gold-hi);font:750 1rem/1 var(--font-display, inherit)}.nxbg-step p{margin-block-start:6px;color:var(--g-ink2);line-height:1.55;font-size:.95rem}.nxbg-check{display:inline-flex;gap:8px;align-items:center;margin-block-start:14px!important;padding:8px 12px;border-radius:999px;background:#3d6bff1f;color:var(--g-blue-text);font-size:.92rem}.nxbg-tiers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;list-style:none;margin:22px 0 0;padding:0}.nxbg-tiers li{display:grid;gap:6px;align-content:start;padding:18px;border-radius:16px;border:1px solid rgb(245 197 66 / calc(.2 + var(--tier) * .12));background:linear-gradient(160deg,rgb(245 197 66 / calc(.05 + var(--tier) * .04)),transparent 70%)}.nxbg-tiers b{font:750 1.05rem/1.2 var(--font-display, inherit);color:var(--g-gold-hi)}.nxbg-tiers span{color:var(--g-ink2);line-height:1.5;font-size:.95rem}.nxbg-band{margin-block-start:clamp(36px,5vw,64px);padding-block-end:clamp(36px,5vw,56px);border-block:1px solid var(--g-line);background:radial-gradient(60% 100% at 50% 0%,rgb(245 197 66 / .09),transparent 70%)}.nxbg-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;list-style:none;margin:22px 0 0;padding:0}.nxbg-cards li{padding:18px;border:1px solid var(--g-line);border-radius:16px;background:var(--g-surface)}.nxbg-cards h3{color:var(--g-gold-hi)}.nxbg-cards p{margin-block-start:8px;color:var(--g-ink2);line-height:1.55;font-size:.95rem}.nxbg-subh{margin-block-start:26px!important}.nxbg-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;list-style:none;margin:12px 0 0;padding:0}.nxbg-points li{display:flex;justify-content:space-between;gap:12px;padding:10px 14px;border:1px solid var(--g-line);border-radius:10px;color:var(--g-ink2)}.nxbg-points b{color:var(--g-gold-hi);font-variant-numeric:tabular-nums}.nxbg-mini-steps{margin:18px 0 0;padding-inline-start:1.3em;color:var(--g-ink2);line-height:1.7}.nxbg-faq{display:grid;gap:10px;margin-block-start:18px}.nxbg-faq details{border:1px solid var(--g-line);border-radius:12px;background:var(--g-surface)}.nxbg-faq summary{cursor:pointer;padding:14px 16px;min-block-size:44px;font-weight:650;list-style-position:inside}.nxbg-faq p{padding:0 16px 16px;color:var(--g-ink2);line-height:1.6}.nxbg-final{text-align:center}.nxbg-final__title{font:750 clamp(1.4rem,3vw,2rem)/1.2 var(--font-display, inherit);text-wrap:balance}.nxbg-related ul{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:14px 0 0;padding:0}.nxbg-related a{display:inline-flex;align-items:center;gap:6px;min-block-size:44px;padding:0 14px;border:1px solid var(--g-line2);border-radius:10px;text-decoration:none}.nxbg-related a:hover{background:var(--g-raised)}@media(max-width:900px){.nxbg-hero__inner{grid-template-columns:1fr}.nxbg-hero__art{order:-1}.nxbg-art{inline-size:min(70%,260px)}.nxbg-steps,.nxbg-cards{grid-template-columns:1fr}.nxbg-tiers{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.nxbg-points{grid-template-columns:1fr}.nxbg-actions .nxbg-btn{flex:1 1 100%}.nxbg-count__cells li{min-inline-size:48px}}@media(prefers-reduced-motion:reduce){.nxbg-hot,.nxbg-art__spark{animation:none}}