:root{--tb-color-paper: #F7EDDA;--tb-color-surface: #FFFAF0;--tb-color-paper-deep: #EFE2CB;--tb-color-ink: #27342E;--tb-color-ink-muted: #526258;--tb-color-forest: #285548;--tb-color-forest-hover: #1E4037;--tb-color-sage: #9EAA92;--tb-color-sage-light: #E8ECE2;--tb-color-sea-mist: #B1BEC4;--tb-color-mist-light: #E6ECE9;--tb-color-ochre: #C4AD7B;--tb-color-ochre-ink: #795C38;--tb-color-border: #D8D2C5;--tb-color-border-strong: #7D8D84;--tb-color-focus: #2D6A72;--tb-color-white: #FFFFFF;--tb-color-positive: #28614C;--tb-color-danger: #A2493E;--tb-bg-page: var(--tb-color-paper);--tb-bg-surface: var(--tb-color-surface);--tb-bg-subtle: var(--tb-color-sage-light);--tb-text-primary: var(--tb-color-ink);--tb-text-secondary: var(--tb-color-ink-muted);--tb-text-link: var(--tb-color-forest);--tb-action-primary: var(--tb-color-forest);--tb-action-primary-hover: var(--tb-color-forest-hover);--tb-action-on-primary: var(--tb-color-white);--tb-decorative-sage: var(--tb-color-sage);--tb-decorative-water: var(--tb-color-sea-mist);--tb-decorative-warm: var(--tb-color-ochre);--tb-text-warm: var(--tb-color-ochre-ink);--tb-border-default: var(--tb-color-border);--tb-border-control: var(--tb-color-border-strong);--tb-focus-ring: var(--tb-color-focus);--tb-font-display: "Noto Serif KR", "Nanum Myeongjo", serif;--tb-font-body: "Pretendard", "Noto Sans KR", system-ui, sans-serif;--tb-font-english: "Cormorant Garamond", Georgia, serif;--tb-font-size-caption: 13px;--tb-font-size-small: 14px;--tb-font-size-body: 17px;--tb-font-size-bodyMobile: 16px;--tb-font-size-lead: 20px;--tb-font-size-h3: 24px;--tb-font-size-h2: 36px;--tb-font-size-h1: 48px;--tb-font-size-display: clamp(2.5rem, 4.7vw, 4.5rem);--tb-line-display: 1.28;--tb-line-heading: 1.35;--tb-line-body: 1.75;--tb-line-caption: 1.5;--tb-tracking-display: -.035em;--tb-tracking-heading: -.025em;--tb-tracking-body: -.012em;--tb-space-1: 4px;--tb-space-2: 8px;--tb-space-3: 12px;--tb-space-4: 16px;--tb-space-5: 20px;--tb-space-6: 24px;--tb-space-8: 32px;--tb-space-10: 40px;--tb-space-12: 48px;--tb-space-16: 64px;--tb-space-20: 80px;--tb-space-24: 96px;--tb-space-32: 128px;--tb-radius-sm: 4px;--tb-radius-md: 6px;--tb-radius-lg: 10px;--tb-radius-pill: 999px;--tb-layout-container: 1200px;--tb-layout-reading: 720px;--tb-layout-gutter: clamp(20px, 4.4vw, 72px);--tb-layout-section-gap: clamp(88px, 9vw, 144px);--tb-layout-hero-min-height: 100svh;--tb-layout-header-height: 72px;--tb-layout-book-aspect-ratio: 152 / 225;--tb-layout-card-grid-gap: 24px;--tb-motion-fast: .16s;--tb-motion-base: .26s;--tb-motion-scene-fade: .85s;--tb-motion-scene-scale: 1.025;--tb-motion-parallax-max: 24px;--tb-motion-easing: cubic-bezier(.22, 1, .36, 1);--tb-image-scrim-desktop: linear-gradient(90deg, rgba(247,237,218,.88) 0%, rgba(247,237,218,.55) 31%, rgba(247,237,218,.04) 65%, rgba(247,237,218,0) 100%);--tb-image-scrim-mobile: linear-gradient(180deg, rgba(247,237,218,.86) 0%, rgba(247,237,218,.65) 40%, rgba(247,237,218,.1) 100%);--tb-scene-01-book-image: url(/brand/scenes/01-book.webp);--tb-scene-01-book-position: center center;--tb-scene-02-river-image: url(/brand/scenes/02-river.webp);--tb-scene-02-river-position: center center;--tb-scene-03-estuary-image: url(/brand/scenes/03-estuary.webp);--tb-scene-03-estuary-position: center center;--tb-scene-04-coast-image: url(/brand/scenes/04-coast.webp);--tb-scene-04-coast-position: center center}@media(max-width:700px){:root{--tb-font-size-body: 16px;--tb-font-size-h1: 34px;--tb-font-size-h2: 28px;--tb-font-size-h3: 21px;--tb-font-size-display: clamp(2.25rem, 9vw, 3rem);--tb-scene-01-book-position: 69% center;--tb-scene-02-river-position: 57% center;--tb-scene-03-estuary-position: 62% center;--tb-scene-04-coast-position: 65% center}}@media(prefers-reduced-motion:reduce){:root{--tb-motion-scene-fade: 0ms;--tb-motion-scene-scale: 1;--tb-motion-parallax-max: 0px}}:root{--tb-layout-media: 936px;--tb-shadow-card: 0 12px 36px rgba(39, 52, 46, .06);--tb-focus-width: 3px;--tb-font-body: "Pretendard Variable", "Pretendard", "Noto Sans KR", system-ui, sans-serif;--tb-button-min-height: 46px}:root{--ink: var(--tb-text-primary);--ink-2: var(--tb-text-secondary);--muted: var(--tb-text-secondary);--line: var(--tb-border-default);--paper: var(--tb-bg-page);--surface: var(--tb-bg-surface);--accent: var(--tb-action-primary);--on-accent: var(--tb-action-on-primary);--sec-news: var(--tb-color-ochre-ink);--sec-lit: var(--tb-color-focus);--sec-blog: var(--tb-color-forest);--unit: var(--tb-space-2);--container: var(--tb-layout-container);--measure: var(--tb-layout-reading);--media-max: var(--tb-layout-media);--pad-x: var(--tb-layout-gutter);--gutter: var(--tb-layout-card-grid-gap);--header-h: var(--tb-layout-header-height);--radius: var(--tb-radius-md);--radius-input: var(--tb-radius-sm);--font-ui: var(--tb-font-body);--font-serif: var(--tb-font-display);--fs-display: var(--tb-font-size-display);--fs-h1: var(--tb-font-size-h1);--fs-h2: var(--tb-font-size-h2);--fs-h3: var(--tb-font-size-h3);--fs-body: var(--tb-font-size-body);--fs-ui: var(--tb-font-size-bodyMobile);--fs-caption: var(--tb-font-size-small);--lh-display: var(--tb-line-display);--lh-h1: var(--tb-line-heading);--lh-h2: var(--tb-line-heading);--lh-h3: var(--tb-line-heading);--lh-body: var(--tb-line-body);--lh-ui: var(--tb-line-caption);--lh-caption: var(--tb-line-caption)}