:root{--c-ink: #1d1d1f;--c-text-2: #6e6e73;--c-text-3: #86868b;--c-link: #424245;--c-canvas: #f5f5f7;--c-surface: #ffffff;--c-foot: #ececef;--c-line: rgba(0, 0, 0, .08);--c-btn-on-dark: #ffffff;--c-btn-on-dark-hover: #f5f5f7;--c-btn-on-dark-text: #1d1d1f;--c-focus-on-dark: #ffffff;--c-focus-halo-on-dark: rgba(0, 0, 0, .5);--c-tint-keypaste: #5b35d6;--c-tint-simplespend: #14a3b8;--c-on-dark: #ffffff;--c-on-dark-muted: rgba(255, 255, 255, .86);--c-on-dark-faint: rgba(255, 255, 255, .62);--c-glass: rgba(255, 255, 255, .72);--c-glass-scrolled: rgba(255, 255, 255, .88);--c-glass-line: rgba(255, 255, 255, .55);--c-ghost: rgba(255, 255, 255, .14);--c-ghost-line: rgba(255, 255, 255, .42);--c-focus: var(--c-ink);--c-focus-ring: var(--c-surface);--s-1: .25rem;--s-2: .5rem;--s-3: .75rem;--s-4: 1rem;--s-5: 1.25rem;--s-6: 1.5rem;--s-8: 2rem;--s-10: 2.5rem;--s-12: 3rem;--s-16: 4rem;--s-20: 5rem;--s-24: 6rem;--s-32: 8rem;--r-1: .5rem;--r-2: .75rem;--r-3: 1.25rem;--r-4: 1.75rem;--r-5: 2.5rem;--r-pill: 999px;--r-icon: 22.5%;--sh-1: 0 2px 8px rgba(0, 0, 0, .04), 0 1px 2px rgba(0, 0, 0, .04);--sh-2: 0 8px 24px rgba(0, 0, 0, .06), 0 2px 6px rgba(0, 0, 0, .04);--sh-3: 0 18px 48px rgba(0, 0, 0, .1), 0 4px 12px rgba(0, 0, 0, .05);--sh-4: 0 28px 80px rgba(0, 0, 0, .14);--t-display: clamp(2.6rem, 1.2rem + 5vw, 4.5rem);--t-h1: clamp(2.35rem, 1.1rem + 4.4vw, 4.15rem);--t-h2: clamp(1.85rem, 1.1rem + 2.4vw, 2.75rem);--t-h3: clamp(1.125rem, 1rem + .5vw, 1.35rem);--t-lead: clamp(1.125rem, 1.05rem + .35vw, 1.3125rem);--t-body: 1.0625rem;--t-small: .9375rem;--t-caption: .6875rem;--t-btn: 1rem;--ls-display: -.048em;--ls-h1: -.045em;--ls-h2: -.036em;--ls-body: -.014em;--ls-caps: .14em;--lh-display: 1.04;--lh-heading: 1.12;--lh-lead: 1.45;--lh-body: 1.5;--lh-caption: 1.3;--fw-regular: 400;--fw-ui: 510;--fw-medium: 590;--fw-semibold: 600;--ease-out: cubic-bezier(.22, .61, .36, 1);--dur-fast: .16s;--dur: .32s;--dur-slow: .52s;--w-content: 68rem;--w-nav: 48rem;--w-footer: 68rem;--w-prose: 40rem;--gutter: var(--s-6);--btn-min-h: 2.9rem;--size-icon: 4.5rem;--size-icon-lg: 10rem;--size-phone: 17.5rem}@media(min-width:768px){:root{--gutter: var(--s-8)}}@media(prefers-color-scheme:dark){:root{--c-ink: #f5f5f7;--c-text-2: #a1a1a6;--c-text-3: #86868b;--c-link: #d2d2d7;--c-canvas: #000000;--c-surface: #1c1c1e;--c-foot: #0a0a0c;--c-line: rgba(255, 255, 255, .12);--c-glass: rgba(28, 28, 30, .72);--c-glass-scrolled: rgba(28, 28, 30, .9);--c-glass-line: rgba(255, 255, 255, .18);--c-focus: #f5f5f7;--c-focus-ring: #1c1c1e;--sh-1: 0 2px 8px rgba(0, 0, 0, .28), 0 1px 2px rgba(0, 0, 0, .2);--sh-2: 0 8px 24px rgba(0, 0, 0, .32), 0 2px 6px rgba(0, 0, 0, .2);--sh-3: 0 18px 48px rgba(0, 0, 0, .4), 0 4px 12px rgba(0, 0, 0, .22);--sh-4: 0 28px 80px rgba(0, 0, 0, .5)}}.site-foot{padding:var(--s-16) var(--gutter) max(var(--s-10),env(safe-area-inset-bottom));background:var(--c-foot);color:var(--c-text-2);border-top:1px solid var(--c-line)}.compact-foot>main{flex:0 0 auto}.compact-foot .site-foot{flex:1 0 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var(--c-line);font-size:var(--t-caption);color:var(--c-text-2)}.foot-legal{display:flex;flex-wrap:wrap;gap:var(--s-2) var(--s-5)}.foot-legal a{font-size:var(--t-caption)}@media(min-width:720px){.foot-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,.8fr) minmax(0,1fr);gap:var(--s-12)}}html[lang=zh-CN] .ss,html[lang=zh-TW] .ss,html[lang=ko] .ss{line-break:strict}html[lang=ja] .ss{line-break:strict;overflow-wrap:anywhere}.ss{--teal: #14a3b8;--teal-text: #0b7380;--teal-button: #0b7d8c;--teal-button-hover: #0a6a77;display:flex;flex-direction:column;min-height:100svh;color:var(--c-ink);background:var(--c-canvas);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,PingFang TC,Hiragino Sans GB,Hiragino Sans,Thonburi,Sukhumvit Set,Geeza Pro,Noto Naskh Arabic,Noto Sans TC,Apple SD Gothic Neo,Noto Sans KR,Helvetica Neue,sans-serif}.ss>.canvas{flex:1 0 auto}.ss a{color:inherit}.ss :focus-visible{outline:2px solid var(--c-focus);outline-offset:3px;box-shadow:0 0 0 5px var(--c-focus-ring)}a.skip{position:absolute;inset-inline-start:var(--s-4);top:var(--s-4);z-index:40;padding:var(--s-2) var(--s-4);border-radius:var(--r-1);background:var(--c-ink);color:var(--c-canvas);text-decoration:none;transform:translateY(-200%)}a.skip:focus{transform:none;color:var(--c-canvas)}.ss a.skip{color:var(--c-canvas)}.top{position:sticky;top:0;z-index:20;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--s-3);min-height:var(--s-12);padding:var(--s-2) var(--gutter);padding-top:max(var(--s-2),env(safe-area-inset-top));color:var(--c-ink);background:var(--c-glass);backdrop-filter:blur(48px) saturate(200%);-webkit-backdrop-filter:blur(48px) saturate(200%);border-bottom:1px solid var(--c-glass-line);box-shadow:var(--sh-1)}.mark{position:relative;z-index:1;min-width:0;font-weight:var(--fw-medium);font-size:var(--t-small);text-decoration:none;letter-spacing:var(--ls-body);white-space:nowrap}.top-nav{display:flex;align-items:center;flex-shrink:0;gap:var(--s-3);font-size:var(--t-small)}.top-nav a{position:relative;z-index:1;text-decoration:none;color:var(--c-text-2)}.top-nav a:hover,.lang summary:hover{color:var(--c-ink)}.ss a.store{color:var(--teal-text);font-weight:var(--fw-ui)}.privacy-link{display:none}@media(min-width:640px){.top-nav{gap:var(--s-5)}.privacy-link{display:inline}}.lang{position:relative}.lang summary{position:relative;list-style:none;cursor:pointer;color:var(--c-text-2);padding-inline-end:var(--s-5);background:transparent}.lang summary::-webkit-details-marker{display:none}.lang summary:after{content:"";position:absolute;inset-inline-end:0;top:50%;width:.35em;height:.35em;border-inline-end:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-70%) rotate(45deg)}html[dir=rtl] .lang summary:after{transform:translateY(-70%) rotate(-45deg)}.lang ul{position:absolute;inset-inline-end:0;top:calc(100% + var(--s-2));z-index:2;margin:0;padding:var(--s-1);list-style:none;min-width:11rem;max-height:min(24rem,70vh);overflow-y:auto;border-radius:var(--r-2);background:var(--c-surface);box-shadow:var(--sh-3);border:1px solid var(--c-line)}.lang a{display:block;padding:var(--s-2) var(--s-3);border-radius:var(--r-1);text-decoration:none;color:var(--c-ink)}.lang a:hover,.lang a[aria-current=page]{background:var(--c-canvas)}.canvas{width:min(var(--w-content),calc(100% - (var(--gutter) * 2)));margin:0 auto;padding:var(--s-2) 0 var(--s-16)}.hero,.row,.wide,.split,.guides,.faq{display:grid;gap:var(--s-8);align-items:start}.hero{align-items:center}.hero{padding:var(--s-10) 0 var(--s-16)}.row.copy-only{grid-template-columns:minmax(0,36rem)}.band-log .row{padding:var(--s-5) 0}.band-log 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var(--s-8)}.hero>*,.row>*,.wide>*,.split>*{min-width:0}@media(min-width:900px){.hero,.row:not(.copy-only){grid-template-columns:minmax(0,1fr) minmax(0,20rem);gap:var(--s-16)}.hero{padding:var(--s-16) 0 var(--s-20)}.wide{grid-template-columns:minmax(0,.9fr) minmax(0,1.2fr);gap:var(--s-12);padding:var(--s-16) var(--s-10)}.row.flip{grid-template-columns:minmax(0,20rem) minmax(0,1fr)}.row.flip .copy{order:2}.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--s-16)}.band-bills{padding:var(--s-12) var(--s-10)}.row .phone,.wide .tablet{max-height:calc(var(--size-phone) * 1.25);overflow:hidden;-webkit-mask-image:linear-gradient(to bottom,#000 68%,transparent);mask-image:linear-gradient(to bottom,#000 68%,transparent)}.wide .tablet{max-height:calc(var(--size-phone) * 1.4)}.row .phone img,.wide .tablet img{max-height:none}}.icon{width:var(--size-icon);height:var(--size-icon);border-radius:var(--r-icon);margin-bottom:var(--s-5);box-shadow:var(--sh-3)}.kicker{margin:0 0 var(--s-2);color:var(--teal-text);font-size:var(--t-caption);font-weight:var(--fw-medium);letter-spacing:var(--ls-caps)}html[lang=en] .kicker,html[lang=vi] .kicker,html[lang=id] .kicker,html[lang=de] .kicker,html[lang=it] .kicker,html[lang=es] .kicker,html[lang=pt-BR] .kicker{letter-spacing:var(--ls-caps);text-transform:uppercase}html[lang=ar] .kicker,html[lang=ar] .ss h1,html[lang=ar] .ss h2{letter-spacing:0}.ss h1,.ss h2{margin:0 0 var(--s-3);max-width:min(16ch,100%);overflow-wrap:anywhere;font-weight:var(--fw-semibold);letter-spacing:var(--ls-h2);line-height:var(--lh-heading);text-wrap:balance}.ss h1{font-size:var(--t-h1);letter-spacing:var(--ls-h1)}.ss h2{font-size:var(--t-h2)}.split h2,.pro h2{max-width:100%}html[lang=zh-CN] h1,html[lang=zh-TW] h1,html[lang=ko] h1,html[lang=ja] h1,html[lang=zh-CN] h2,html[lang=zh-TW] h2,html[lang=ko] h2,html[lang=ja] h2{word-break:keep-all;line-break:strict}html[lang=ja] .ss :is(h1,h2,.guide-title){word-break:auto-phrase}html[lang=zh-CN] 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summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"";flex:0 0 auto;width:.4em;height:.4em;margin-top:-.15em;border-inline-end:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);transition:transform var(--dur-fast) var(--ease-out)}html[dir=rtl] .faq-list summary:after{transform:rotate(-45deg)}.faq-list details[open] summary:after{margin-top:.15em;transform:rotate(225deg)}html[dir=rtl] .faq-list details[open] summary:after{transform:rotate(-225deg)}.faq-list details p{margin:var(--s-3) 0 0;color:var(--c-text-2);line-height:var(--lh-body)}.faq-more{display:inline-block;margin-top:var(--s-2);color:var(--teal-text);text-decoration:none;font-size:var(--t-small)}.faq-more:hover{color:var(--c-ink)}.article{max-width:var(--w-prose);margin:0 auto;display:block;padding:var(--s-10) 0 var(--s-16)}.feature{margin:var(--s-6) 0 var(--s-8)}.feature img{width:100%;height:auto;border-radius:var(--r-3)}.article .kicker{margin-top:0}.article .lead{font-size:var(--t-lead);line-height:var(--lh-lead);margin-bottom:var(--s-6)}.article h2{margin-top:var(--s-10);max-width:none}.article p,.article li{color:var(--c-link);line-height:var(--lh-body)}.article ol,.article ul{padding-inline-start:var(--s-5)}.article .cta{margin:var(--s-6) 0}.article .faq{padding:var(--s-10) 0 0}.crumbs{display:flex;flex-wrap:wrap;gap:var(--s-2);margin:0 0 var(--s-6);color:var(--c-text-3);font-size:var(--t-small)}.crumbs a{color:var(--c-text-2);text-decoration:none}.crumbs a:hover{color:var(--c-ink)}.related{margin-top:var(--s-10);padding-top:var(--s-6)}.related ul{margin:var(--s-3) 0 0;padding:0;list-style:none}.related a{color:var(--teal-text);text-decoration:none}[data-reveal].is-pending{opacity:0;transform:translateY(var(--s-3))}[data-reveal].is-in{opacity:1;transform:none;transition:opacity var(--dur) var(--ease-out),transform var(--dur) var(--ease-out);transition-delay:var(--reveal-delay, 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