:root{--nv-bg: #f5f5f7;--nv-glow-1: rgba(0, 113, 227, .16);--nv-glow-2: rgba(191, 90, 242, .14);--nv-glow-3: rgba(255, 55, 95, .1);--nv-ink: #1d1d1f;--nv-soft: #3a3a3c;--nv-muted: #6e6e73;--nv-faint: rgba(60, 60, 67, .36);--nv-accent: #0071e3;--nv-accent-ink: #ffffff;--nv-accent-soft: rgba(0, 113, 227, .1);--nv-accent-edge: rgba(0, 113, 227, .55);--nv-ok: rgba(52, 199, 89, .6);--nv-ok-soft: rgba(52, 199, 89, .12);--nv-alert: #d70015;--nv-glass: rgba(255, 255, 255, .66);--nv-glass-strong: rgba(255, 255, 255, .82);--nv-field: rgba(255, 255, 255, .72);--nv-edge: rgba(0, 0, 0, .07);--nv-edge-strong: rgba(0, 0, 0, .12);--nv-highlight: rgba(255, 255, 255, .9);--nv-ring: linear-gradient(135deg, rgba(255, 255, 255, .95), rgba(255, 255, 255, .25) 38%, rgba(0, 113, 227, .32) 72%, rgba(191, 90, 242, .34));--nv-card-top: rgba(255, 255, 255, .94);--nv-card-bottom: rgba(255, 255, 255, .78);--nv-on-top: rgba(240, 247, 255, .98);--nv-on-bottom: rgba(228, 240, 255, .9);--nv-ring-on: linear-gradient(135deg, rgba(255, 255, 255, .95), rgba(0, 113, 227, .6) 45%, rgba(191, 90, 242, .6));--nv-glow: rgba(0, 113, 227, .16);--nv-glow-strong: rgba(0, 113, 227, .34);--nv-lift: inset 0 1px 0 var(--nv-highlight), 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .06), 0 24px 64px rgba(0, 0, 0, .08);--nv-lift-sm: inset 0 1px 0 var(--nv-highlight), 0 1px 2px rgba(0, 0, 0, .05), 0 6px 18px rgba(0, 0, 0, .06);--nv-font-head: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;--nv-font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;--nv-ease: .3s ease-in-out;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--nv-bg: #000000;--nv-glow-1: rgba(10, 132, 255, .22);--nv-glow-2: rgba(191, 90, 242, .16);--nv-glow-3: rgba(255, 55, 95, .1);--nv-ink: #f5f5f7;--nv-soft: rgba(245, 245, 247, .86);--nv-muted: rgba(235, 235, 245, .6);--nv-faint: rgba(235, 235, 245, .3);--nv-accent: #0a84ff;--nv-accent-soft: rgba(10, 132, 255, .16);--nv-accent-edge: rgba(10, 132, 255, .6);--nv-alert: #ff6961;--nv-glass: rgba(44, 44, 46, .55);--nv-glass-strong: rgba(58, 58, 60, .7);--nv-field: rgba(28, 28, 30, .7);--nv-edge: rgba(255, 255, 255, .1);--nv-edge-strong: rgba(255, 255, 255, .16);--nv-highlight: rgba(255, 255, 255, .06);--nv-ring: linear-gradient(135deg, rgba(255, 255, 255, .4), rgba(255, 255, 255, .05) 38%, rgba(10, 132, 255, .45) 72%, rgba(191, 90, 242, .45));--nv-card-top: rgba(58, 58, 60, .72);--nv-card-bottom: rgba(28, 28, 30, .66);--nv-on-top: rgba(10, 60, 120, .55);--nv-on-bottom: rgba(10, 40, 90, .5);--nv-ring-on: linear-gradient(135deg, rgba(255, 255, 255, .5), rgba(10, 132, 255, .7) 45%, rgba(191, 90, 242, .6));--nv-glow: rgba(10, 132, 255, .22);--nv-glow-strong: rgba(10, 132, 255, .45);--nv-lift: inset 0 1px 0 var(--nv-highlight), 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .32), 0 24px 64px rgba(0, 0, 0, .42);--nv-lift-sm: inset 0 1px 0 var(--nv-highlight), 0 1px 2px rgba(0, 0, 0, .35), 0 8px 20px rgba(0, 0, 0, .25)}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:radial-gradient(760px 520px at 8% -6%,var(--nv-glow-1),transparent 62%),radial-gradient(680px 480px at 100% 0%,var(--nv-glow-2),transparent 60%),radial-gradient(620px 520px at 60% 110%,var(--nv-glow-3),transparent 62%);background-color:var(--nv-bg);color:var(--nv-ink);font-family:var(--nv-font-body);font-size:16px;line-height:1.8;letter-spacing:.01em;overflow-x:hidden;min-height:100vh;-webkit-font-smoothing:antialiased}button,input{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--nv-accent);outline-offset:3px}.nv-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.nv-shell{width:100%;max-width:820px;margin:0 auto;padding:64px max(24px,env(safe-area-inset-right)) 96px max(24px,env(safe-area-inset-left))}.nv-hero{margin-bottom:48px}.nv-eyebrow{margin:0 0 12px;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--nv-accent)}.nv-title{margin:0;font-family:var(--nv-font-head);font-size:clamp(32px,8.6vw,60px);text-wrap:balance;font-weight:700;line-height:1.12;letter-spacing:-.02em}.nv-lede{margin:20px 0 0;max-width:34em;font-size:15px;line-height:1.85;color:var(--nv-muted)}.nv-muted{margin:4px 0 0;font-size:13px;line-height:1.8;color:var(--nv-muted)}.nv-stack{display:grid;gap:24px}.nv-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.nv-row>*{flex:1 1 200px}.nv-card{padding:28px 24px;border-radius:16px;border:1px solid var(--nv-edge);background:var(--nv-glass);-webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);box-shadow:var(--nv-lift);min-width:0}.nv-step-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px}.nv-step-no{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--nv-accent);padding-top:5px}.nv-step-title{margin:0;font-family:var(--nv-font-head);font-size:21px;font-weight:700;line-height:1.3;letter-spacing:-.01em}.nv-input{width:100%;min-width:0;padding:16px 18px;font-size:17px;border-radius:12px;border:1px solid var(--nv-edge-strong);background:var(--nv-field);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:inset 0 1px 2px #0000000a,0 1px 0 var(--nv-highlight);transition:border-color var(--nv-ease),box-shadow var(--nv-ease),background-color var(--nv-ease)}.nv-input::placeholder{color:var(--nv-faint)}.nv-input:focus{outline:none;border-color:var(--nv-accent-edge);box-shadow:0 0 0 4px var(--nv-accent-soft),0 8px 24px #0000000f}.nv-grid{display:grid;gap:12px}.nv-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.nv-grid-3{grid-template-columns:minmax(0,1fr)}@media(min-width:560px){.nv-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}.nv-grid-5{grid-template-columns:repeat(3,minmax(0,1fr))}@media(min-width:720px){.nv-grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.nv-grid-5{grid-template-columns:repeat(5,minmax(0,1fr))}}.nv-grid-5 .nv-choice{min-height:84px;padding:16px 14px}.nv-grid-5 .nv-choice-label{font-size:19px;letter-spacing:0}.nv-grid-5 .nv-choice-mark{top:12px;bottom:auto}.nv-grid-5 .nv-choice-note{font-size:11px;word-break:keep-all;overflow-wrap:anywhere}.nv-switch-row{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:16px 18px;text-align:left;cursor:pointer;border-radius:14px;border:1px solid var(--nv-edge);background:var(--nv-glass-strong);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);box-shadow:var(--nv-lift-sm);transition:border-color var(--nv-ease),box-shadow var(--nv-ease);-webkit-tap-highlight-color:transparent}.nv-switch-row[aria-checked=true]{border-color:var(--nv-accent-edge);box-shadow:inset 0 0 0 1px var(--nv-accent-edge),0 8px 24px #0071e31f,0 24px 56px #00000014}.nv-switch-text{display:flex;flex-direction:column;gap:4px;min-width:0}.nv-switch{position:relative;flex:none;width:51px;height:31px;border-radius:16px;background:var(--nv-edge-strong);transition:background-color var(--nv-ease)}.nv-switch:after{content:"";position:absolute;top:2px;left:2px;width:27px;height:27px;border-radius:14px;background:#fff;box-shadow:0 3px 8px #00000026,0 3px 1px #0000000f;transition:transform var(--nv-ease)}.nv-switch-row[aria-checked=true] .nv-switch{background:var(--nv-accent, #0071e3)}.nv-switch-row[aria-checked=true] .nv-switch:after{transform:translate(20px)}.nv-choice{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:4px;min-height:92px;padding:18px 16px;text-align:left;cursor:pointer;border-radius:14px;border:1px solid var(--nv-edge);background:var(--nv-glass-strong);box-shadow:var(--nv-lift-sm);transition:border-color var(--nv-ease),background-color var(--nv-ease),box-shadow var(--nv-ease),transform var(--nv-ease);-webkit-tap-highlight-color:transparent}.nv-choice:hover{border-color:var(--nv-edge-strong)}.nv-choice.is-on{border-color:var(--nv-accent-edge);background:var(--nv-accent-soft);box-shadow:inset 0 0 0 1px var(--nv-accent-edge),0 8px 24px #0071e31f,0 24px 56px #00000014;transform:translateY(-1px)}.nv-choice-label{font-size:15px;font-weight:600;line-height:1.4;word-break:keep-all;overflow-wrap:normal;letter-spacing:-.01em}.nv-choice-note{font-size:12px;line-height:1.6;color:var(--nv-muted)}.nv-choice-mark{position:absolute;bottom:12px;right:12px;width:20px;height:20px;display:grid;place-items:center;border-radius:50%;background:var(--nv-accent);color:var(--nv-accent-ink);opacity:0;transform:scale(.6);transition:opacity var(--nv-ease),transform var(--nv-ease)}.nv-choice-mark .nv-ico{width:14px;height:14px}.nv-choice.is-on .nv-choice-mark{opacity:1;transform:scale(1)}.nv-cta{width:100%;min-height:56px;padding:0 24px;cursor:pointer;border-radius:9999px;border:1px solid rgba(255,255,255,.2);background:var(--nv-accent);color:var(--nv-accent-ink);font-size:17px;font-weight:600;letter-spacing:.01em;box-shadow:inset 0 1px #ffffff40,0 1px 2px #0000001a,0 10px 28px #0071e347;transition:transform var(--nv-ease),box-shadow var(--nv-ease),filter var(--nv-ease)}.nv-cta:hover{filter:brightness(1.06)}.nv-cta:active{transform:scale(.98)}.nv-ghost{min-height:52px;padding:0 20px;cursor:pointer;border-radius:9999px;border:1px solid var(--nv-edge-strong);background:var(--nv-glass-strong);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:var(--nv-accent);font-size:15px;font-weight:600;box-shadow:var(--nv-lift-sm);transition:background-color var(--nv-ease),border-color var(--nv-ease)}.nv-ghost:hover{border-color:var(--nv-accent-edge)}.nv-ghost-sm{min-height:40px;font-size:13px}.nv-ghost:disabled{opacity:.5;cursor:default}.nv-alert{margin:12px 0 0;font-size:14px;line-height:1.7;color:var(--nv-alert)}.nv-stages{list-style:none;margin:28px 0 0;padding:0;display:grid;gap:18px}.nv-stage{display:flex;align-items:center;gap:14px;opacity:.4;transition:opacity var(--nv-ease)}.nv-stage.is-active,.nv-stage.is-done{opacity:1}.nv-stage-dot{flex:none;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;border:1px 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10px}.nv-cta-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}.nv-soon{display:inline-flex;align-items:center;justify-content:center;min-height:52px;border-radius:9999px;border:1px solid var(--nv-edge-strong);background:var(--nv-glass-strong);color:var(--nv-muted);font-size:15px;font-weight:600;letter-spacing:.02em}.nv-top{display:flex;justify-content:flex-end;gap:8px;margin:-32px 0 24px}.nv-chip{display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:0 14px;cursor:pointer;border-radius:9999px;border:1px solid var(--nv-edge-strong);background:var(--nv-glass-strong);-webkit-backdrop-filter:blur(16px) saturate(180%);backdrop-filter:blur(16px) saturate(180%);color:var(--nv-ink);font-size:13px;font-weight:600;box-shadow:var(--nv-lift-sm);transition:border-color var(--nv-ease),box-shadow var(--nv-ease)}.nv-chip:hover{border-color:var(--nv-accent-edge)}.nv-chip-quiet{color:var(--nv-accent)}.nv-chip-plan{padding:2px 8px;border-radius:9999px;background:var(--nv-accent);color:var(--nv-accent-ink);font-size:11px}.nv-notice{margin:0 0 20px;padding:12px 16px;border-radius:12px;border:1px solid var(--nv-accent-edge);background:var(--nv-accent-soft);font-size:14px;box-shadow:0 1px 2px #0000000a,0 8px 24px #0071e31a}.nv-quota{margin:-8px 0 0;text-align:center;font-size:13px;color:var(--nv-muted)}.nv-choice.is-locked{opacity:.72}.nv-choice-badge{margin-top:6px;padding:2px 10px;border-radius:9999px;border:1px solid var(--nv-accent-edge);color:var(--nv-accent);font-size:11px;font-weight:600}.nv-sheet-wrap{position:fixed;inset:0;z-index:40;display:flex;align-items:flex-end;justify-content:center}.nv-sheet-scrim{position:absolute;inset:0;background:#00000047;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nv-sheet{position:relative;display:grid;gap:16px;width:100%;max-width:640px;max-height:92vh;overflow-y:auto;padding:24px 24px calc(28px + env(safe-area-inset-bottom));border-radius:16px 16px 0 0;border:1px solid transparent;background:linear-gradient(180deg,var(--nv-card-top),var(--nv-card-bottom)) padding-box,var(--nv-ring) border-box;-webkit-backdrop-filter:blur(28px) saturate(180%);backdrop-filter:blur(28px) saturate(180%);box-shadow:0 -1px 2px #0000000a,0 -12px 40px #0000001f,0 0 64px -16px var(--nv-glow)}@media(min-width:720px){.nv-sheet-wrap{align-items:center}.nv-sheet{border-radius:16px}}.nv-sheet-head{display:flex;align-items:center;justify-content:space-between}.nv-sheet-head .nv-eyebrow{margin:0}.nv-sheet-close{min-height:36px;padding:0 14px;cursor:pointer;border-radius:9999px;border:1px solid var(--nv-edge-strong);background:var(--nv-glass-strong);color:var(--nv-muted);font-size:13px;font-weight:600}.nv-sheet .nv-lede{margin:0}.nv-help-box{padding:14px 16px;border-radius:14px;border:1px solid rgba(0,0,0,.06);background:#00000008}.nv-help-title{margin:0 0 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.nv-muted{margin:0}.nv-terms{display:grid;gap:10px;margin:0;padding:16px;border-radius:12px;border:1px solid var(--nv-edge);background:var(--nv-field);box-shadow:inset 0 1px 0 var(--nv-highlight),0 1px 2px #0000000a;font-size:13px;line-height:1.7}.nv-terms div{display:grid;gap:2px}.nv-terms dt{font-size:11px;font-weight:600;letter-spacing:.04em;color:var(--nv-muted)}.nv-terms dd{margin:0;color:var(--nv-ink)}.nv-agree{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.6;cursor:pointer}.nv-agree input{width:20px;height:20px;margin:2px 0 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var(--nv-edge-strong);background:var(--nv-glass-strong);font-size:14px;font-weight:600;cursor:pointer}.nv-meter{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.nv-meter>div{display:grid;padding:16px;border-radius:12px;border:1px solid var(--nv-edge);background:var(--nv-field);box-shadow:inset 0 1px 0 var(--nv-highlight),0 1px 2px #0000000a}.nv-meter-num{font-family:var(--nv-font-head);font-size:28px;font-weight:700;letter-spacing:-.02em;line-height:1.1}.nv-meter-unit{font-size:12px;color:var(--nv-muted)}.nv-meter-cap{margin-top:4px;font-size:11px;color:var(--nv-muted)}.nv-confirm{display:grid;gap:8px;padding:16px;border-radius:12px;border:1px solid var(--nv-edge-strong);background:var(--nv-field);font-size:14px;line-height:1.7}.nv-confirm p{margin:0}.nv-danger{color:var(--nv-alert)}.nv-link{justify-self:start;padding:0;border:0;background:none;cursor:pointer;color:var(--nv-accent);font-size:14px;font-weight:600}.nv-stack-sm{display:grid;gap:12px}.nv-next 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.nv-eyecatch-overlay{position:absolute;inset:0;pointer-events:none}.nv-tabs{position:relative;display:flex;gap:6px;padding:6px;overflow-x:auto;scrollbar-width:none;border-radius:16px;border:1px solid var(--nv-edge);background:var(--nv-glass-strong);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);box-shadow:var(--nv-lift-sm);scroll-snap-type:x proximity}.nv-tabs::-webkit-scrollbar{display:none}.nv-tab{flex:none;padding:10px 16px;border:1px solid transparent;border-radius:12px;background:transparent;color:var(--nv-muted);font-size:14px;font-weight:600;white-space:nowrap;cursor:pointer;scroll-snap-align:start;transition:background-color var(--nv-ease),color var(--nv-ease),box-shadow var(--nv-ease);-webkit-tap-highlight-color:transparent}.nv-tab.is-on{color:var(--nv-ink, inherit);border-color:var(--nv-accent-edge);background:var(--nv-accent-soft);box-shadow:inset 0 0 0 1px var(--nv-accent-edge),0 6px 18px #0071e324,0 16px 40px #00000014}@media(min-width:720px){.nv-tabs{justify-content:space-between}.nv-tab{flex:1 1 0}}.nv-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.nv-choice-sm{min-height:56px;padding:14px 40px 14px 14px;justify-content:center}.nv-choice-sm .nv-choice-mark{top:50%;bottom:auto;margin-top:-10px}.nv-stack-sm{display:grid;gap:10px}.nv-switch-row.is-disabled{opacity:.6}.nv-article-extra{margin:0 0 16px;font-size:15px;line-height:1.8;color:var(--nv-soft);white-space:pre-line}.nv-warn{border-color:#ff9f0a73;box-shadow:inset 0 0 0 1px #ff9f0a59,0 8px 24px #ff9f0a1f,0 24px 56px #00000014}.nv-warn .nv-eyebrow,.nv-choice-badge.is-warn{color:#c77700}.nv-choice-badge.is-warn{border-color:#ff9f0a73;background:#ff9f0a1a}.nv-howto{padding-bottom:18px}.nv-howto-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.nv-howto-rail{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;margin:8px -4px 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var(--nv-edge);background:linear-gradient(180deg,var(--nv-card-top),var(--nv-card-bottom));box-shadow:var(--nv-lift-sm)}.nv-howto-arrow{color:var(--nv-muted)}.nv-howto-no{margin:0;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--nv-accent)}.nv-howto-title{margin:4px 0 6px;font-size:19px;font-weight:700}.nv-howto-dots{display:flex;justify-content:center;gap:8px;margin-top:12px}.nv-howto-dot{width:8px;height:8px;padding:0;border:0;border-radius:12px;background:var(--nv-edge-strong);cursor:pointer;transition:width var(--nv-ease),background-color var(--nv-ease)}.nv-howto-dot.is-on{width:22px;background:var(--nv-accent)}.nv-howto-open{justify-self:start;padding:8px 14px;border-radius:12px;border:1px solid var(--nv-edge);background:var(--nv-glass-strong);color:var(--nv-accent);font-size:13px;font-weight:600;cursor:pointer}.nv-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:16px 0 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var(--nv-edge);background:var(--nv-glass-strong);box-shadow:var(--nv-lift-sm)}.nv-lib-open{display:grid;flex:1;gap:2px;min-width:0;padding:0;border:0;background:transparent;color:inherit;text-align:left;cursor:pointer}.nv-lib-genre{font-size:11px;font-weight:700;color:var(--nv-accent)}.nv-lib-title{overflow:hidden;font-size:15px;font-weight:600;text-overflow:ellipsis;white-space:nowrap}.nv-lib-meta{font-size:12px;color:var(--nv-muted)}.nv-lib-ask{display:flex;flex-wrap:wrap;gap:6px}.nv-ghost.is-danger{color:#ff453a}.nv-mypage-image{margin:14px 0}.nv-mypage-image img{display:block;width:100%;height:100%;object-fit:cover}.nv-howto-heading{margin:2px 0 0;font-size:17px;font-weight:700;letter-spacing:-.01em}.nv-stat-cap.is-top{margin-bottom:4px;font-weight:600;color:var(--nv-soft)}.nv-ticket-note{margin:0 0 4px;font-size:12px;line-height:1.7;color:var(--nv-muted);opacity:.85}.nv-stats .nv-stat-wide{grid-column:span 1}