.color-center{--paper:#f7f7f7;--ink:#000000;--muted:#000000;--accent:#000000;min-height:100svh;background:var(--paper);color:var(--ink);font-family:PingFang SC,Microsoft YaHei,sans-serif}.color-center-main{width:min(100%,1040px);margin:0 auto;padding:calc(28px + env(safe-area-inset-top)) 28px calc(48px + env(safe-area-inset-bottom))}.color-center ::selection{background:#dddddd}.color-center input{caret-color:var(--accent)}.color-center-preview{margin:0 0 18px;color:#000000;font-size:11px;line-height:1.5}.color-center-heading{padding:0 0 24px}.color-center-heading h1{margin:0;font-size:30px;font-weight:600;line-height:1.4;letter-spacing:.025em}.color-center-heading p{margin:10px 0 0;font-size:13px;line-height:1.6;color:var(--muted)}.color-center-tabs{display:flex;gap:6px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding:2px 0 12px;border-bottom:1px solid #dddddd}.color-center-tabs::-webkit-scrollbar{display:none}.color-center-tabs button{flex:none;min-height:44px;padding:9px 17px;border:0;border-radius:24px;background:transparent;font-size:15px;font-weight:500;line-height:1.5;color:#000000;cursor:pointer;white-space:nowrap}.color-center-tabs button[aria-pressed=true]{color:#fff;background:var(--accent);font-weight:600}.color-center-search{display:flex;align-items:center;gap:10px;height:46px;margin:22px 0 29px;padding:0 14px;border:1px solid #dddddd;border-radius:10px;background:#fff;color:#000000}.color-center-search input{min-width:0;flex:1;width:100%;height:44px;border:0;outline:0;background:transparent;font-size:15px;color:var(--ink)}.color-center-search input::placeholder{color:#000000}.color-center-search input::-webkit-search-cancel-button{-webkit-appearance:none}.color-center-search button{display:grid;place-items:center;width:44px;height:44px;border:0;background:transparent;color:#000000;margin-right:-12px}.color-center-directory-label{display:flex;align-items:baseline;justify-content:space-between;gap:16px;color:var(--muted);font-size:12px;margin:0 0 15px}.color-center-directory-label h2{margin:0;font-size:20px;font-weight:600;letter-spacing:.04em;line-height:1.5;color:var(--ink)}.color-center-books{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.color-center-book{display:flex;flex-direction:column;align-items:stretch;gap:0;min-width:0;padding:0;border:1px solid #dddddd;border-radius:14px;background:#fff;text-decoration:none;transition:border-color .16s ease;overflow:hidden}.color-center-cover-box{display:flex;align-items:center;justify-content:center;flex:none;width:100%;height:248px;overflow:hidden;border-radius:0;background:#eeeeee;color:#000000;font-size:13px;padding:16px}.color-center-cover-box img{display:block;min-height:0;max-height:100%;width:100%;height:100%;object-fit:contain}.color-center-book-copy{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:0 12px;min-width:0;padding:18px 20px 20px}.color-center-book h3{margin:0;font-size:19px;font-weight:600;line-height:1.6;overflow-wrap:anywhere;letter-spacing:.015em}.color-center-book-meta{display:flex;flex-wrap:wrap;gap:5px 12px;margin:8px 0 0;font-size:12px;line-height:1.5;color:var(--muted);grid-column:1}.color-center-example{font-size:11px;line-height:1.5;color:#000000;margin:7px 0 0}.color-center-book-open{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:500;color:#000000;grid-column:2;grid-row:1/3;white-space:nowrap}.color-center-empty{grid-column:1/-1;text-align:center;padding:64px 12px;color:#000000}.color-center-empty p{font-size:15px;margin:0 0 10px}.color-center-empty span{font-size:12px;color:#000000}.color-center-color-note{margin:26px 0 0;text-align:center;font-size:11px;color:#000000;line-height:1.7}.color-center-book:focus-visible,.color-center-search:focus-within,.color-center-tabs button:focus-visible{outline:2px solid #000000;outline-offset:3px}@media(hover:hover){.color-center-book:hover{border-color:#888888}.color-center-tabs button:not([aria-pressed=true]):hover{background:#e9e9e9}}@media(max-width:760px){.color-center-main{padding:calc(18px + env(safe-area-inset-top)) 16px calc(28px + env(safe-area-inset-bottom))}.color-center-preview{margin-bottom:14px}.color-center-heading{padding-bottom:17px}.color-center-heading h1{font-size:25px}.color-center-heading p{font-size:12px;margin-top:8px}.color-center-tabs{margin-right:-16px;padding-right:16px;padding-bottom:9px;gap:2px}.color-center-tabs button{padding-inline:14px}.color-center-books{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 12px}.color-center-cover-box{height:174px;padding:10px}.color-center-book{border-radius:11px}.color-center-book h3{font-size:14px;line-height:1.6;letter-spacing:0}.color-center-search{margin:16px 0 20px}.color-center-directory-label{margin-bottom:12px}.color-center-directory-label h2{font-size:18px}.color-center-book-copy{display:block;position:relative;padding:11px 12px 13px}.color-center-book-meta{font-size:11px;gap:3px 8px;margin-top:7px}.color-center-example{font-size:10px;margin-top:5px}.color-center-book-open{display:none}.color-center-color-note{margin-top:20px}}@media(max-width:350px){.color-center-main{padding-inline:14px}.color-center-tabs{margin-right:-14px;padding-right:14px}.color-center-tabs button{padding-inline:12px;font-size:14px}.color-center-heading h1{font-size:23px}.color-center-heading p{font-size:11px}.color-center-books{gap:12px 10px}.color-center-cover-box{height:150px;padding:8px}.color-center-book-copy{padding:10px}.color-center-book h3{font-size:14px}.color-center-book-meta{font-size:11px;gap:3px 7px}}@media(prefers-reduced-motion:reduce){.color-center-book{transition:none}}