:root{--petal-navy: #082958;--petal-navy-deep: #061f46;--petal-blue: #246fdb;--petal-text: #16263d;--petal-muted: #64758b;--petal-line: #dbe5f0;--petal-page: #edf5fe;color:var(--petal-text);background:#fff;font-family:Inter,Arial,Microsoft YaHei,Noto Sans JP,Noto Sans KR,sans-serif;line-height:1.6}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;margin:0;background:#fff;color:var(--petal-text)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.petal-container{width:min(1180px,calc(100% - 40px));margin:0 auto}.petal-skip-link{position:fixed;top:0;left:16px;z-index:100;padding:10px 16px;background:#fff;transform:translateY(-100%)}.petal-skip-link:focus{top:12px;transform:translateY(0)}.petal-header{position:sticky;top:0;z-index:20;border-bottom:1px solid 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