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0;font-size:clamp(30px,5vw,46px);font-weight:700;line-height:1.4}.about__title-accent{color:var(--primary)}.about__lead{color:var(--ink-2);max-width:640px;margin:0;font-size:15px;line-height:2}.about__section{border-top:1px solid var(--line-soft);grid-template-columns:64px 1fr;gap:24px;padding:32px 0;display:grid}.about__section-num{padding-top:4px}.about__section h2{font-family:var(--font-display);margin:0 0 18px;font-size:24px;font-weight:700}.about__section-main p{color:var(--ink-2);margin:0 0 14px;font-size:14.5px;line-height:2}.about__section-main em{color:var(--accent);background:var(--accent-soft);padding:0 3px;font-style:normal}.about__section-main strong{color:var(--ink)}.about__rules{grid-template-columns:1fr 1fr;gap:20px;margin-top:8px;display:grid}.about__rule{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);grid-template-columns:36px 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var(--line);background:var(--paper);border-radius:var(--radius);cursor:pointer;text-align:left;align-items:center;gap:14px;padding:16px 18px;transition:border-color .15s,transform .15s;display:flex}.about__xcard:hover{border-color:var(--ink);transform:translateY(-1px)}.about__xcard-icon{background:var(--ink);width:36px;height:36px;color:var(--bg);border-radius:50%;place-items:center;display:grid}.about__xcard-name{font-family:var(--font-display);margin-bottom:2px;font-size:14px;font-weight:700}@media(max-width:700px){.about__section{grid-template-columns:1fr;gap:12px}.about__rules,.about__links,.about__profile{grid-template-columns:1fr}.about__profile-avatar{max-width:180px}}.pointbox{border-radius:var(--radius);border:1px solid;margin:24px 0;padding:18px 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0;border-color:#bf0000}.productcard__btn--rakuten.is-hover{color:#fff;background:#bf0000}@media(max-width:560px){.productcard{grid-template-columns:1fr}.productcard__media{max-width:200px;margin:0 auto}}.ytembed{margin:28px 0}.ytembed__frame{border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;position:relative;overflow:hidden}.ytembed__frame.is-played{cursor:default}.ytembed__play{background:#00000026;flex-direction:column;justify-content:center;align-items:center;gap:10px;transition:background .15s;display:flex;position:absolute;inset:0}.ytembed__frame:hover .ytembed__play{background:#00000040}.ytembed__playbtn{color:#fff;background:#ff3d3d;border-radius:50%;place-items:center;width:64px;height:64px;padding-left:4px;display:grid;box-shadow:0 4px 20px #00000040}.ytembed__frame.is-played .ytembed__play{display:none}.ytembed__duration{font-family:var(--font-mono);color:#fff;background:#000000b3;border-radius:3px;padding:3px 8px;font-size:11px}.ytembed__chrome{font-family:var(--font-mono);color:#333;background:#ffffffe6;border-radius:3px;align-items:center;gap:7px;padding:4px 8px;font-size:10px;display:flex;position:absolute;top:10px;right:12px}.ytembed__chrome-dot{border-radius:50%;width:6px;height:6px}.ytembed__caption{background:var(--bg-2);border-radius:var(--radius);margin-top:14px;padding:14px 16px}.ytembed__title{font-family:var(--font-display);margin-bottom:4px;font-size:15px;font-weight:700}.ytembed__channel{color:var(--ink-3);font-size:12px;font-family:var(--font-mono)}.ytembed__summary{border-top:1px dashed var(--line);margin-top:10px;padding-top:10px}.ytembed__summary-label{font-size:11px;font-family:var(--font-mono);color:var(--accent-2);letter-spacing:.05em}.ytembed__summary p{color:var(--ink-2);margin:4px 0 0;font-size:13px;line-height:1.8}.toc{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.toc__label{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;margin-bottom:14px;padding-bottom:12px;display:flex}.toc__label-mark{font-family:var(--font-display);letter-spacing:.2em;font-size:14px;font-weight:700}.toc__label-count{font-family:var(--font-mono);color:var(--ink-3);font-size:10px}.toc__list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.toc__item a{color:var(--ink-3);align-items:baseline;gap:10px;padding:6px 0;font-size:12.5px;line-height:1.55;transition:color .15s;display:flex}.toc__item a:hover{color:var(--ink)}.toc__item--h3 a{padding-left:20px;font-size:12px}.toc__num{font-family:var(--font-mono);color:var(--ink-3);flex-shrink:0;padding-top:1px;font-size:10px}.toc__item.is-active a{color:var(--primary);font-weight:600}.toc__item.is-active .toc__num{color:var(--accent)}.balloon{opacity:0;grid-template-columns:70px 1fr;gap:14px;margin:24px 0;transition:opacity .5s,transform 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a:hover{color:var(--ink)}.site-footer__base{max-width:var(--page-w);color:var(--ink-3);font-size:11px;font-family:var(--font-mono);border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;gap:20px;margin:0 auto;padding:16px 28px 24px;display:flex}@media(max-width:820px){.site-footer__inner{grid-template-columns:1fr 1fr}}@media(max-width:520px){.site-footer__inner{grid-template-columns:1fr}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}