:root{color-scheme: light dark;--bg: #ffffff;--bg-soft: #eef5ff;--ink: #0b1b3f;--ink-2: #3f4d75;--line: rgba(11, 27, 63, 0.14);--link: #0a47c9;--focus: #0a47c9;--blue: #2b87f5;--sky: #3fa9f8;--deep: #0a3ad6;--yellow: #ffd60a;--pink: #ff385e;--card: #ffffff;--card-line: rgba(11, 27, 63, 0.1);--shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 12px 32px -8px rgba(0, 0, 0, 0.28);--pb-bg: #0a3ad6;--pb-fg: #ffffff;--pb-fg2: rgba(255, 255, 255, 0.9);--pb-icon: rgba(255, 255, 255, 0.16);--py-bg: #ffd60a;--py-fg: #0b1b3f;--py-fg2: #3a3200;--py-icon: rgba(11, 27, 63, 0.1);--pp-bg: #e3f0ff;--pp-fg: #0b1b3f;--pp-fg2: #34436b;--pp-icon: #ffffff;--band-bg: #071033;--sticker-bg: #ffffff;--sticker-fg: #0a3ad6;--sticker-ink-bg: #ffd60a;--sticker-ink-fg: #0b1b3f;--f-head: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Hiragino Sans", system-ui, sans-serif;--f-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--gutter: clamp(16px, 4vw, 32px);--r-lg: 28px;--r-md: 18px;--r-sm: 12px;}@media (prefers-color-scheme: dark){:root{--bg: #060b1f;--bg-soft: #0c1535;--ink: #eef3ff;--ink-2: #b4c0e2;--line: rgba(238, 243, 255, 0.16);--link: #8db8ff;--focus: #8db8ff;--card: #101a40;--card-line: rgba(238, 243, 255, 0.12);--shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 14px 36px -8px rgba(0, 0, 0, 0.6);--pb-bg: #0f3fd9;--pp-bg: #14234f;--pp-fg: #eef3ff;--pp-fg2: #b9c5e8;--pp-icon: rgba(255, 255, 255, 0.1);--band-bg: #040a24;}}html[lang="ja"]{--f-body: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, system-ui, sans-serif;}html[lang="ko"]{--f-head: "Jua", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--f-body: "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;}html[lang="zh-Hans"]{--f-head: "Noto Sans SC", "PingFang SC", sans-serif;--f-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;}html[lang="zh-Hant"]{--f-head: "Noto Sans TC", "PingFang TC", sans-serif;--f-body: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;}*, *::before, *::after{box-sizing: border-box;}html{-webkit-text-size-adjust: 100%;scroll-padding-top: 76px;}body{margin: 0;background: var(--bg);color: var(--ink);font-family: var(--f-body);font-size: 17px;line-height: 1.75;-webkit-font-smoothing: antialiased;overflow-x: hidden;}html[lang="ja"] body{word-break: auto-phrase;line-break: strict;}html[lang="ko"] body{word-break: keep-all;line-height: 1.8;}html[lang="zh-Hans"] body, html[lang="zh-Hant"] body{line-height: 1.85;}img, svg{max-width: 100%;display: block;}img{height: auto;}a{color: var(--link);text-underline-offset: 0.2em;}h1, h2, h3{font-family: var(--f-head);font-weight: 900;margin: 0;letter-spacing: 0;text-wrap: balance;}html[lang="ja"] h1, html[lang="ja"] h2, html[lang="ja"] h3{word-break: auto-phrase;line-break: strict;}html[lang="ko"] h1, html[lang="ko"] h2, html[lang="ko"] h3{word-break: keep-all;}p{margin: 0;text-wrap: pretty;}ul, ol{margin: 0;padding: 0;list-style: none;}:focus-visible{outline: 3px solid var(--focus);outline-offset: 3px;border-radius: 6px;}.skip{position: absolute;left: 12px;top: -64px;z-index: 100;background: var(--yellow);color: #0b1b3f;padding: 12px 18px;border-radius: 10px;font-weight: 700;text-decoration: none;}.skip:focus{top: 12px;}.wrap{width: 100%;max-width: 1180px;margin-inline: auto;padding-inline: var(--gutter);}.sticker{display: inline-block;white-space: nowrap;color: var(--sticker-fg);background: var(--sticker-bg);padding: 0.02em 0.24em 0.06em;border-radius: 0.3em;transform: rotate(-4deg);box-shadow: 0 0.06em 0 rgba(0, 0, 0, 0.18);margin-inline: 0.04em;line-height: 1.25;}.top{position: sticky;top: 0;z-index: 50;background: color-mix(in srgb, var(--bg) 88%, transparent);backdrop-filter: saturate(1.6) blur(14px);-webkit-backdrop-filter: saturate(1.6) blur(14px);border-bottom: 1px solid var(--line);}.top__in{display: flex;align-items: center;gap: 20px;min-height: 64px;}.brand{display: inline-flex;align-items: center;gap: 10px;min-height: 44px;color: var(--ink);text-decoration: none;font-family: var(--f-head);font-weight: 900;font-size: 22px;}.brand img{width: 36px;height: 36px;border-radius: 9px;}.nav{display: none;gap: 4px;margin-left: auto;}.nav a{display: inline-flex;align-items: center;min-height: 44px;padding: 0 14px;color: var(--ink);text-decoration: none;font-weight: 700;font-size: 15px;border-radius: 10px;}.nav a:hover{background: var(--bg-soft);}.lang{position: relative;margin-left: 0;}.hbadge{margin-left: auto;display: inline-flex;line-height: 0;border-radius: 8px;}.hbadge img{height: 40px;width: auto;}@media (max-width: 519px){.lang__l{display: none;}.lang summary{padding: 0 12px;}.top__in{gap: 12px;}}.lang summary{display: inline-flex;align-items: center;gap: 8px;min-height: 44px;padding: 0 12px;border-radius: 10px;cursor: pointer;font-weight: 700;font-size: 15px;list-style: none;border: 1px solid var(--line);background: var(--bg);color: var(--ink);}.lang summary::-webkit-details-marker{display: none;}.lang:not([open]) ul{display: none;}.lang summary svg{width: 18px;height: 18px;}.lang ul{position: absolute;right: 0;top: calc(100% + 8px);min-width: 220px;background: var(--card);border: 1px solid var(--card-line);border-radius: 16px;box-shadow: var(--shadow);padding: 6px;z-index: 60;}.lang li a{display: flex;align-items: center;min-height: 44px;padding: 0 14px;border-radius: 10px;color: var(--ink);text-decoration: none;font-weight: 500;}.lang li a:hover{background: var(--bg-soft);}.lang li a[aria-current]{background: var(--bg-soft);font-weight: 800;}@media (min-width: 900px){.nav{display: flex;}.hbadge{margin-left: 8px;}}.badge{display: inline-block;line-height: 0;border-radius: 10px;}.badge img{height: 54px;width: auto;}.btn{display: inline-flex;align-items: center;justify-content: center;gap: 10px;min-height: 48px;padding: 0 24px;border-radius: 14px;font-weight: 800;text-decoration: none;background: var(--deep);color: #fff;touch-action: manipulation;transition: transform 0.15s ease, background-color 0.15s ease;}.btn:hover{background: #0830b5;}.btn:active{transform: translateY(1px);}@media (prefers-color-scheme: dark){.btn{background: #2f67ff;}.btn:hover{background: #4a7bff;}}.hero, .cta{--hero-base: #0a3ad6;--pan-a: #1448e6;--pan-b: #2a6cf0;}.hero{position: relative;contain: paint;color: #fff;isolation: isolate;background: var(--hero-base);}@media (prefers-color-scheme: dark){.hero, .cta{--hero-base: #0a28a6;--pan-a: #0f37c4;--pan-b: #1b52d8;}}.hero::before, .hero::after, .cta::before, .cta::after{content: "";position: absolute;z-index: 0;pointer-events: none;}.hero::after{left: 0;right: 0;bottom: 0;height: 52%;background: linear-gradient(180deg, transparent, var(--pan-a));}.cta > *{position: relative;z-index: 2;}@media (min-width: 900px){.hero::after{left: auto;top: 0;width: 60%;height: auto;background: linear-gradient(90deg, transparent 0%, var(--pan-a) 42%, var(--pan-b) 100%);}}.hero__in{display: grid;gap: 8px;align-items: center;padding-top: clamp(40px, 7vw, 88px);}.hero__copy{position: relative;z-index: 2;padding-bottom: 8px;}.eyebrow{display: inline-flex;align-items: center;gap: 8px;min-height: 32px;padding: 5px 14px;line-height: 1.4;border-radius: 999px;background: rgba(255, 255, 255, 0.16);border: 1px solid rgba(255, 255, 255, 0.4);font-weight: 800;font-size: 14px;}.hero h1{--sticker-bg: #ffd60a;--sticker-fg: #0b1b3f;font-size: clamp(34px, 8.8vw, 40px);line-height: 1.28;margin: 18px 0 16px;}.hero__sub{font-size: clamp(16px, 2.2vw, 19px);color: rgba(255, 255, 255, 0.94);max-width: 31em;}.hero__cta{margin-top: 26px;display: flex;flex-wrap: wrap;align-items: center;gap: 14px 18px;}.hero__note{font-size: 14px;color: rgba(255, 255, 255, 0.92);}.stage{position: relative;width: 100%;max-width: 520px;height: 520px;margin-inline: auto;}.stage .mascot{position: absolute;right: -22%;bottom: -12%;width: 92%;aspect-ratio: 1;z-index: 1;}.stage .mascot img{width: 100%;height: 100%;}.sample{position: absolute;left: 0;top: 2%;width: 58%;z-index: 3;display: grid;gap: 10px;}.sample__label{justify-self: start;display: inline-flex;align-items: center;min-height: 28px;padding: 4px 12px;line-height: 1.4;border-radius: 999px;background: var(--yellow);color: #0b1b3f;font-weight: 800;font-size: 13px;transform: rotate(-3deg);}.msg{background: rgba(255, 255, 255, 0.96);color: #0b1b3f;border-radius: 18px 18px 18px 6px;padding: 10px 14px;font-weight: 700;font-size: 15px;line-height: 1.5;box-shadow: var(--shadow);width: fit-content;max-width: 100%;}.reply{background: #ffffff;color: #0b1b3f;border-radius: 18px 18px 6px 18px;padding: 10px 14px 12px;box-shadow: var(--shadow);font-size: 14.5px;line-height: 1.5;font-weight: 700;justify-self: end;width: 100%;}.reply small{display: inline-block;font-size: 12px;font-weight: 800;color: #0a47c9;background: #e3f0ff;border-radius: 999px;padding: 2px 9px;margin-bottom: 3px;line-height: 1.4;}.reply:nth-child(3){transform: rotate(1.5deg);}.reply:nth-child(4){transform: rotate(-1.5deg);}.reply:nth-child(5){transform: rotate(1deg);}.spark{position: absolute;z-index: 2;width: 44px;height: 44px;}.spark--a{right: 6%;top: 8%;}.spark--b{left: 56%;bottom: 14%;width: 30px;height: 30px;}@media (min-width: 900px){.hero__in{grid-template-columns: 1.05fr 0.95fr;gap: 24px;padding-top: clamp(56px, 6vw, 84px);}.hero h1{font-size: clamp(44px, 4.7vw, 62px);}.hero__cta{margin-top: 32px;}.stage{max-width: 600px;height: 580px;margin-inline: 0 auto;}.stage .mascot{right: -16%;width: 88%;}.sample{width: 54%;gap: 12px;}.msg{font-size: 16px;}.reply{font-size: 15px;}}@media (min-width: 1200px){.stage .mascot{right: -12%;}}.sec{padding-block: clamp(64px, 9vw, 112px);}.sec--soft{background: var(--bg-soft);}.head{display: grid;gap: 14px;margin-bottom: clamp(32px, 5vw, 56px);max-width: 38em;}.head h2{font-size: clamp(28px, 4.4vw, 46px);line-height: 1.3;--sticker-bg: #ffd60a;--sticker-fg: #0b1b3f;}.head p{color: var(--ink-2);font-size: clamp(16px, 1.9vw, 19px);}.head--row{max-width: none;display: flex;align-items: flex-end;justify-content: space-between;gap: 24px;}.head--row .head__t{display: grid;gap: 14px;max-width: 34em;}.guide{display: none;width: 220px;margin-bottom: -20px;flex: none;}@media (min-width: 900px){.guide{display: block;}}.steps{display: grid;gap: 18px;counter-reset: s;}.step{counter-increment: s;position: relative;border-radius: var(--r-lg);padding: 30px 26px 28px;min-height: 100%;}.step::before{content: counter(s);position: absolute;top: -18px;left: 22px;width: 52px;height: 52px;display: grid;place-items: center;font-family: var(--f-head);font-weight: 900;font-size: 26px;line-height: 1;border-radius: 16px;transform: rotate(-6deg);background: #ffd60a;color: #0b1b3f;box-shadow: 0 4px 0 rgba(0, 0, 0, 0.16);}.step h3{font-size: clamp(20px, 2.4vw, 24px);line-height: 1.4;margin: 22px 0 10px;}.step p{font-size: 16px;}.tone-blue{background: var(--pb-bg);color: var(--pb-fg);}.tone-blue p{color: var(--pb-fg2);}.tone-yellow{background: var(--py-bg);color: var(--py-fg);}.tone-yellow p{color: var(--py-fg2);}.tone-pale{background: var(--pp-bg);color: var(--pp-fg);}.tone-pale p{color: var(--pp-fg2);}.tone-blue .step::before, .step.tone-yellow::before{background: #fff;}.step.tone-blue::before{background: #ffd60a;}.step.tone-yellow::before{background: #0a3ad6;color: #fff;}.step.tone-pale{background: var(--card);border: 1px solid var(--card-line);box-shadow: var(--shadow);}@media (min-width: 800px){.steps{grid-template-columns: repeat(3, 1fr);gap: 22px;}}@media (prefers-color-scheme: dark){.tone-pale .stg__t h3 svg{color: #8db8ff;}}.band{background: var(--band-bg);color: #fff;position: relative;overflow: hidden;}.band__in{display: grid;gap: 28px;align-items: center;padding-block: clamp(56px, 8vw, 96px);}.band h2{font-size: clamp(28px, 4.4vw, 46px);line-height: 1.3;--sticker-bg: #ffd60a;--sticker-fg: #0b1b3f;}.band p{color: rgba(255, 255, 255, 0.88);margin-top: 14px;max-width: 32em;}.checks{margin-top: 22px;display: grid;gap: 12px;}.checks li{display: flex;gap: 12px;align-items: flex-start;font-weight: 700;}.checks svg{flex: none;width: 24px;height: 24px;margin-top: 2px;color: #ffd60a;}.band a{color: #ffd60a;font-weight: 800;display: inline-flex;align-items: center;min-height: 44px;margin-top: 12px;}.band__m{position: relative;width: min(340px, 78%);margin-inline: auto;margin-bottom: -56px;}.band__m img{position: relative;}@media (min-width: 860px){.band__in{grid-template-columns: 1.15fr 0.85fr;gap: 48px;}.band__m{width: 100%;max-width: 400px;margin-bottom: -96px;margin-top: 12px;}}.plans{display: grid;gap: 18px;}.plan{border-radius: var(--r-lg);padding: 30px 28px;display: grid;gap: 6px;align-content: start;}.plan--free{background: var(--card);border: 2px solid var(--line);}.plan--pro{background: var(--pb-bg);color: #fff;position: relative;}.plan h3{font-size: 26px;display: flex;align-items: center;gap: 10px;}.plan .sub{color: var(--ink-2);font-weight: 700;}.plan--pro .sub{color: rgba(255, 255, 255, 0.92);}.plan ul{margin-top: 16px;display: grid;gap: 12px;}.plan li{display: flex;gap: 12px;align-items: flex-start;font-size: 16px;}.plan li svg{flex: none;width: 22px;height: 22px;margin-top: 3px;color: #0a47c9;}.plan--pro li svg{color: #ffd60a;}@media (prefers-color-scheme: dark){.plan li svg{color: #8db8ff;}.plan--pro li svg{color: #ffd60a;}}.plan .star{width: 30px;height: 30px;}.fine{margin-top: 20px;color: var(--ink-2);font-size: 15px;max-width: 36em;}@media (min-width: 800px){.plans{grid-template-columns: 1fr 1fr;gap: 24px;}}.faq{display: grid;gap: 10px;max-width: 860px;}.qa{background: var(--card);border: 1px solid var(--card-line);border-radius: var(--r-md);}.sec--soft .qa{box-shadow: 0 1px 0 var(--card-line);}.qa summary{display: flex;align-items: center;justify-content: space-between;gap: 16px;min-height: 56px;padding: 12px 20px;cursor: pointer;list-style: none;font-weight: 800;line-height: 1.55;}.qa summary::-webkit-details-marker{display: none;}.qa summary svg{flex: none;width: 22px;height: 22px;transition: transform 0.2s ease;}.qa[open] summary svg{transform: rotate(180deg);}.qa p{padding: 0 20px 18px;color: var(--ink-2);}.more{margin-top: 22px;}.faqgrid{display: grid;gap: 8px;}@media (min-width: 960px){.faqgrid{grid-template-columns: 0.8fr 1.6fr;gap: 56px;align-items: start;}.faqgrid .head{position: sticky;top: 96px;margin-bottom: 0;}}.more a{display: inline-flex;align-items: center;min-height: 44px;font-weight: 800;}.cta{position: relative;overflow: hidden;border-radius: 36px;color: #fff;background: var(--hero-base);padding: clamp(36px, 6vw, 72px) clamp(24px, 5vw, 64px);display: grid;gap: 20px;}.cta::after{left: 0;right: 0;bottom: 0;height: 45%;background: linear-gradient(180deg, transparent, var(--pan-a));}@media (min-width: 800px){.cta::after{left: auto;top: 0;width: 52%;height: auto;background: linear-gradient(90deg, transparent, var(--pan-a) 60%, var(--pan-b));}}.cta h2{font-size: clamp(28px, 4.6vw, 48px);line-height: 1.3;max-width: 14em;}.cta p{color: rgba(255, 255, 255, 0.94);max-width: 28em;margin-top: 14px;}.cta__m{position: relative;width: 200px;margin: 6px auto -64px;}@media (min-width: 800px){.cta__m{position: absolute;right: 3%;bottom: -70px;width: 330px;margin: 0;}.cta > div{max-width: 62%;}}.pagehead{background: linear-gradient(110deg, #0a3ad6 0%, #0a3ad6 55%, #1d5fe0 100%);color: #fff;padding: clamp(36px, 6vw, 64px) 0 clamp(28px, 4vw, 44px);}@media (prefers-color-scheme: dark){.pagehead{background: linear-gradient(110deg, #0a28a6 0%, #0a28a6 55%, #1b5ccc 100%);}}.crumbs{display: flex;flex-wrap: wrap;gap: 6px 10px;font-size: 14px;margin-bottom: 16px;}.crumbs a{color: #fff;display: inline-flex;align-items: center;min-height: 32px;}.crumbs li + li::before{content: "/";margin-right: 10px;opacity: 0.7;}.pagehead h1{font-size: clamp(30px, 5vw, 48px);line-height: 1.3;}.pagehead p{margin-top: 10px;color: rgba(255, 255, 255, 0.94);max-width: 36em;}.prose{max-width: 780px;padding-block: clamp(36px, 6vw, 64px) clamp(56px, 8vw, 96px);}.prose h2{font-size: clamp(21px, 3vw, 26px);line-height: 1.4;margin: 2.2em 0 0.6em;}.prose h2:first-child{margin-top: 0;}.prose p, .prose li{margin-bottom: 0.9em;}.prose ul{list-style: disc;padding-left: 1.4em;}.prose .updated{color: var(--ink-2);font-size: 15px;}.prose .note{background: var(--bg-soft);border: 2px solid var(--yellow);border-radius: 12px;padding: 14px 18px;font-weight: 700;margin-bottom: 1.8em;}.table-wrap{overflow-x: auto;margin: 1em 0;}table{width: 100%;border-collapse: collapse;font-size: 16px;}th, td{text-align: left;vertical-align: top;padding: 12px 14px;border-bottom: 1px solid var(--line);}th{background: var(--bg-soft);font-weight: 800;}.dl{display: grid;gap: 0;border: 1px solid var(--line);border-radius: var(--r-md);overflow: hidden;}.dl > div{display: grid;gap: 4px;padding: 16px 20px;border-bottom: 1px solid var(--line);}.dl > div:last-child{border-bottom: 0;}.dl dt{font-weight: 800;color: var(--ink-2);font-size: 15px;}.dl dd{margin: 0;}@media (min-width: 720px){.dl > div{grid-template-columns: 14em 1fr;gap: 24px;}}.contact{background: var(--bg-soft);border-radius: var(--r-lg);padding: 28px;display: grid;gap: 14px;justify-items: start;margin-block: 1em 0;}.contact .mail{font-weight: 800;font-size: 18px;overflow-wrap: anywhere;}.foot{background: var(--bg-soft);padding-block: 48px 36px;font-size: 15px;}.foot__grid{display: grid;gap: 28px;}.foot .brand{font-size: 20px;}.foot p{color: var(--ink-2);margin-top: 8px;}.foot nav ul, .foot .langs{display: flex;flex-wrap: wrap;gap: 4px 6px;}.foot nav a, .foot .langs a{display: inline-flex;align-items: center;min-height: 44px;padding: 0 12px;border-radius: 10px;color: var(--ink);text-decoration: none;font-weight: 700;}.foot nav a:hover, .foot .langs a:hover{background: var(--card);}.foot .langs a[aria-current]{background: var(--card);border: 1px solid var(--line);}.foot h2{font-family: var(--f-body);font-size: 13px;font-weight: 800;color: var(--ink-2);margin-bottom: 4px;text-transform: none;}.foot small{display: block;margin-top: 28px;color: var(--ink-2);line-height: 1.7;}@media (min-width: 860px){.foot__grid{grid-template-columns: 1.2fr 1fr 1.4fr;}}@media (prefers-reduced-motion: no-preference){@keyframes rise{from{opacity: 0;transform: translateY(14px);}to{opacity: 1;transform: none;}}@keyframes bob{0%, 100%{transform: translateY(0);}50%{transform: translateY(-8px);}}.sample > *{animation: rise 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;}.sample > :nth-child(2){animation-delay: 0.12s;}.sample > :nth-child(3){animation-delay: 0.24s;}.sample > :nth-child(4){animation-delay: 0.36s;}.sample > :nth-child(5){animation-delay: 0.36s;}.stage .mascot img{animation: bob 6s ease-in-out infinite;transform-origin: 50% 100%;}}@media (max-width: 380px){.badge img{height: 50px;}}.card{border-radius: 20px;box-shadow: var(--shadow);background: #e5e5ea;}.cards{position: absolute;inset: 0;z-index: 3;pointer-events: none;}.card--a{position: absolute;left: 0;top: 0;width: 66%;height: auto;}@media (min-width: 900px){.hero__in{grid-template-columns: 0.95fr 1.05fr;}.stage{max-width: 660px;height: 600px;}.card--a{left: 0;top: 0;width: 60%;border-radius: 26px;}}.stages{display: grid;gap: 20px;}.stg{border-radius: var(--r-lg);padding: clamp(24px, 4vw, 48px);display: grid;gap: 28px;align-items: center;overflow: hidden;}.stg__t h3{display: flex;align-items: flex-start;gap: 12px;font-size: clamp(24px, 3vw, 34px);line-height: 1.35;}.stg__t h3 svg{flex: none;width: 32px;height: 32px;margin-top: 0.12em;}.tone-pale .stg__t h3 svg{color: #0a47c9;}.stg__t p{margin-top: 16px;font-size: 17px;max-width: 31em;}.stg .pro{margin-top: 18px;align-self: flex-start;display: inline-flex;align-items: center;gap: 6px;min-height: 30px;padding: 4px 12px 4px 8px;line-height: 1.4;border-radius: 999px;background: #fff;color: #0b1b3f;font-weight: 800;font-size: 13px;}.stg .pro svg{width: 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