:root{--paper: #faf7f0;--paper-deep: #f2ecdd;--ink: #26241f;--ink-soft: #56524a;--ink-faint: #8d877b;--cinnabar: #a63c2a;--cinnabar-deep: #8b2f1f;--jade: #46624d;--indigo: #33505f;--gold: #b08d57;--line: rgba(38, 36, 31, .16);--line-light: rgba(250, 247, 240, .22);--font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", "Source Han Serif SC", serif;--font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;--fs-display: clamp(2.6rem, 6vw, 4.4rem);--fs-h1: clamp(2.1rem, 4.2vw, 3.2rem);--fs-h2: clamp(1.7rem, 3vw, 2.4rem);--fs-h3: 1.35rem;--fs-body: 1.0625rem;--fs-small: .875rem;--fs-caption: .8125rem;--sp-1: 4px;--sp-2: 8px;--sp-3: 16px;--sp-4: 24px;--sp-5: 40px;--sp-6: 64px;--sp-7: 96px;--sp-8: 144px;--container: 1160px;--gutter: clamp(20px, 5vw, 48px);--radius: 2px;--ease: cubic-bezier(.22, 1, .36, 1);--dur: 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