:root{color-scheme:light;--paper:#faf7f2;--ink:#29253f;--muted:#676174;--purple:#7040c4;--green:#286c60;--line:#e6dfea;--radius:24px;font-family:ui-rounded,"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;}*{box-sizing:border-box;}html{scroll-behavior:smooth;scroll-padding-top:24px;}body{margin:0;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.75;-webkit-text-size-adjust:100%;}a{color:inherit;text-decoration:none;}button{font:inherit;}img,svg{display:block;}h1,h2,h3,h4,p,figure{margin:0;}h1,h2,h3,h4{line-height:1.35;}[hidden]{display:none !important;}.wrap{width:min(1160px,calc(100% - 64px));margin-inline:auto;}.icon{width:24px;height:24px;flex:0 0 auto;}.icon-library{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none;}:focus-visible{outline:3px solid var(--purple);outline-offset:5px;border-radius:8px;}.skip-link{position:fixed;top:12px;left:16px;z-index:20;padding:12px 20px;background:white;border:2px solid var(--purple);border-radius:12px;transform:translateY(-160%);}.skip-link:focus{transform:none;}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:100px;padding-block:18px;border-bottom:1px solid var(--line);}.brand{display:inline-flex;align-items:center;min-height:48px;gap:11px;font:800 26px/1.2 system-ui,sans-serif;letter-spacing:-.05em;}.brand small{display:block;margin-top:4px;color:var(--muted);font:400 12px/1.5 "Noto Sans TC",system-ui,sans-serif;letter-spacing:.02em;}.brand-mark{display:grid;place-items:center;width:43px;height:47px;flex:0 0 auto;color:#bd8016;background:#fff0c5;border:1px solid #efdcaa;border-radius:15px;transform:rotate(-7deg);}.brand-mark .icon{width:29px;height:29px;}.main-nav{display:flex;align-items:center;gap:18px;font-size:15px;font-weight:600;}.main-nav a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding-inline:10px;gap:8px;}.main-nav a:hover{color:var(--purple);}.main-nav a[aria-current="page"]{color:var(--purple);}.nav-github{border-left:1px solid var(--line);margin-left:6px;padding-left:25px !important;}.nav-github .icon{width:19px;height:19px;}.hero{padding-top:50px;padding-bottom:36px;}.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:#715288;margin-bottom:20px;}.eyebrow-dot{width:8px;height:8px;border-radius:50%;background:#b794c7;box-shadow:0 0 0 5px #efe5f3;}h1{position:relative;font-size:clamp(34px,4vw,52px);font-weight:900;letter-spacing:-.055em;line-height:1.35;}h1 > span{color:var(--purple);background:linear-gradient(transparent 82%,#ebe0f7 0);}.hero-description{margin-top:18px;color:var(--muted);font-size:17px;line-height:1.9;max-width:560px;}.boards{padding-block:12px 56px;}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;}.kicker{color:#785d91;letter-spacing:.13em;font-size:12px;font-weight:600;margin-bottom:8px;}h2{font-size:28px;font-weight:850;letter-spacing:-.04em;}.gold-dot{color:#c9952d;}.section-heading > p{color:var(--muted);font-size:15px;}.board-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;}.board-card{display:flex;flex-direction:column;gap:12px;padding:28px 24px;border:1px solid #c9dfd5;border-radius:var(--radius);background:#edf5ef;color:inherit;transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease;}a.board-card:hover{border-color:#a8cfc0;box-shadow:0 8px 20px #45614c12;transform:translateY(-1px);}.board-card .tool-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:13px;background:#fff;color:var(--green);flex:0 0 auto;}.board-card .tool-icon .icon{width:24px;height:24px;}.board-card h3{font:800 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nav a{display:inline-flex;align-items:center;min-width:44px;min-height:44px;padding-inline:7px;}.site-footer a:hover{color:#f0d79d;}.site-footer :focus-visible{outline-color:#f0d79d;}.footer-bottom{display:flex;justify-content:space-between;gap:12px;padding-top:18px;margin-top:26px;border-top:1px solid #ffffff1c;color:#c7bdd2;font-size:13px;}.lang-switcher{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid color-mix(in srgb,currentColor 18%,transparent);border-radius:999px;background:color-mix(in srgb,#fff 72%,transparent);}.lang-switcher button{appearance:none;border:0;background:transparent;color:inherit;font:inherit;font-size:.78rem;font-weight:750;line-height:1;padding:.48rem .62rem;border-radius:999px;cursor:pointer;}.lang-switcher button[aria-pressed="true"]{background:#1f2a44;color:#fff;box-shadow:0 1px 4px rgba(31,42,68,.16);}.lang-switcher button:focus-visible{outline:3px solid #f0b95a;outline-offset:2px;}@media (max-width:640px){.wrap{width:calc(100% 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button{appearance:none;border:0;cursor:pointer;min-height:40px;padding:0.45rem 1rem;border-radius:999px;font:inherit;font-size:0.92rem;font-weight:750;color:#5f536d;background:transparent;}.source-tabs button[aria-selected="true"]{background:#1f2a44;color:#fff;box-shadow:0 1px 4px rgba(31,42,68,.16);}.source-tabs button:focus-visible{outline:3px solid #f0b95a;outline-offset:2px;}.formula-meta{margin:-0.35rem 0 1.1rem;font-size:0.84rem;line-height:1.55;color:color-mix(in srgb,var(--ink) 62%,transparent);}.formula-meta strong{color:var(--ink);font-weight:750;}.source-pill{display:inline-flex;align-items:center;gap:4px;padding:0.15rem 0.5rem;border-radius:999px;font-size:0.75rem;font-weight:700;letter-spacing:.01em;background:#efe8f7;color:#5b4578;}.source-pill.cp{background:#e5f6f4;color:#1f6f68;}.source-pill.both{background:#fff0d8;color:#7a5a20;}.source-pill.fq{background:#ffe8e4;color:#a33b2c;}.rank-sub{display:block;margin-top:2px;font-size:12px;font-weight:500;color:var(--muted);}