:root{--ground:#F2F5F6;--surface:#FFFFFF;--ink:#0C1113;--muted:#5F6E76;--line:#D4DEE2;--dark:#0C1113;--dark-2:#151D21;--dark-line:#222E34;--on-dark:#E8EEF0;--on-dark-mute:#8FA0A8;--c1:#4D4D4D;--c2:#F4712C;--c3:#006DB8;--c4:#8CD73F;--c5:#93278D;--c4-text:#6FAE28;--sc1:#E65E78;--sc2:#38B0A8;--lat:"Archivo",system-ui,sans-serif;--mono:"IBM Plex Mono",ui-monospace,monospace;--han:"PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif;--serif:"Songti TC","Noto Serif TC","MingLiU","Hiragino Mincho ProN",serif}*{box-sizing:border-box}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--han);line-height:1.6;-webkit-font-smoothing:antialiased}.page{width:100%}.inner{max-width:1280px;margin-inline:auto;padding-inline:56px}@media(max-width:1080px){.inner{padding-inline:28px}}@media(max-width:720px){.inner{padding-inline:18px}}a{color:inherit}:focus-visible{outline:2px solid var(--c3);outline-offset:3px}.serif{font-family:var(--serif)}.lat{font-family:var(--lat)}.mono{font-family:var(--mono)}@font-face{font-family:KotechCangjie;src:url(/fonts/Kotech-Cangjie-Font.woff) format("woff");font-display:swap}.cj{font-family:KotechCangjie,Songti TC,"Noto Serif TC",serif}.masthead{background:var(--dark);color:var(--on-dark)}.masthead .mast-nav{border-top:1px solid #1A2429}.mast-top{display:flex;align-items:center;justify-content:space-between;gap:28px;padding-block:16px 13px}.brand{display:flex;align-items:center;gap:11px;flex:none}.logo{display:block;line-height:0}.logo img{display:block}.brand-name{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.02em;white-space:nowrap;text-decoration:none;color:inherit}.brand-name:hover{text-decoration:underline}.masthead .seek{display:flex;align-items:center;background:#182126;border:1px solid var(--dark-line);border-radius:8px;height:40px;padding:0 6px 0 13px;width:330px;flex:none;color:#7c8d96}.masthead .seek input{flex:1;min-width:0;background:none;border:0;color:var(--on-dark);font:inherit;font-size:13px;padding-left:9px;outline:none}.masthead .seek input::placeholder{color:#6f818a}.masthead .seek button{background:var(--c4);color:var(--dark);font:inherit;font-size:12px;font-weight:600;border:0;border-radius:6px;padding:6px 14px;cursor:pointer;white-space:nowrap}.mast-nav{display:flex;gap:26px;padding-block:12px 14px;font-size:13px}.mast-nav a{color:#9fb0b8;text-decoration:none;white-space:nowrap}.mast-nav a:hover{color:var(--on-dark)}.mast-nav .about{margin-left:auto}.masthead{position:relative}.nav-drop{position:static}.nav-drop summary{list-style:none;cursor:pointer;color:#9fb0b8;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}.nav-drop summary::-webkit-details-marker{display:none}.nav-drop summary:hover,.nav-drop[open] summary{color:var(--on-dark)}.chev{width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .15s}.nav-drop[open] .chev{transform:translateY(1px) rotate(-135deg)}.nav-panel{position:absolute;top:100%;z-index:70;display:grid;gap:2px;min-width:250px;padding:8px;background:var(--dark-2);border:1px solid var(--dark-line);border-radius:12px;box-shadow:0 18px 40px #00000059}.mast-nav .nav-panel a{display:flex;align-items:baseline;gap:12px;padding:10px 12px;border-radius:8px;color:var(--on-dark);font-size:14.5px;white-space:nowrap}.mast-nav .nav-panel a:hover{background:#1b262c}.mast-nav .nav-panel .np-all{border-bottom:1px solid var(--dark-line);border-radius:8px 8px 0 0;margin-bottom:4px}.np-sub{font-size:11px;color:var(--on-dark-mute);min-width:40px}footer{background:var(--dark);color:var(--on-dark);margin-top:56px;padding-block:34px 28px}footer .rail{display:flex;height:3px;margin-bottom:26px;background:linear-gradient(to right,var(--c1) 0 25%,var(--c2) 25% 50%,var(--c3) 50% 75%,var(--c4) 75% 100%)}.foot-row{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}.co-zh{font-family:var(--serif);font-size:16px;font-weight:600}.co-en{font-family:var(--lat);font-size:10.5px;letter-spacing:.09em;color:var(--on-dark-mute);margin-top:3px}.about-btn{color:#c9d5da;text-decoration:none;font-size:13.5px;border:1px solid var(--dark-line);border-radius:999px;padding:9px 20px;white-space:nowrap}footer .copy{font-size:12px;color:#6e8088;margin-top:22px}@media(max-width:720px){.mast-top{flex-wrap:wrap;gap:12px;padding-block:14px 12px}.masthead .seek{width:100%}.mast-nav{padding-block:11px 13px;gap:18px;overflow-x:auto;-webkit-overflow-scrolling:touch}.mast-nav .about{margin-left:0}.nav-panel{left:12px;right:12px;min-width:0}}