@font-face{font-family:Alimama FangYuan;src:url(/fonts/alimama-fangyuan-vf.woff2) format("woff2-variations"),url(/fonts/alimama-fangyuan-vf.woff2) format("woff2");font-weight:200 700;font-style:normal;font-display:swap}@font-face{font-family:Fraunces;src:url(/fonts/fraunces-latin.woff2) format("woff2");font-weight:500 900;font-style:normal;font-display:swap}@font-face{font-family:Fraunces;src:url(/fonts/fraunces-latin-italic.woff2) format("woff2");font-weight:500 900;font-style:italic;font-display:swap}:root{--paper:#FBF3E4;--paper-2:#F3E6CC;--card:#FFFDF6;--ink:#3D2B1F;--ink-soft:#7A6248;--ink-faint:rgba(61,43,31,.14);--coral:#E8613C;--coral-deep:#C94E2C;--honey:#F5B63F;--leaf:#7BA05B;--night:#2E3A59;--night-deep:#222B4B;--cream-text:#FFF8EC;--font-display:"Alimama FangYuan","PingFang SC","Hiragino Sans GB",sans-serif;--font-body:"Alimama FangYuan","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--font-latin:"Fraunces","Georgia",serif;--line:2px solid var(--ink);--radius-panel:18px 22px 17px 21px;--radius-tile:16px 20px 15px 19px;--radius-inner:12px 16px 13px 17px;--radius-pill:255px 12px 225px 12px/12px 225px 12px 255px;--shadow-panel:3px 4px 0 rgba(61,43,31,.10),0 16px 32px rgba(61,43,31,.08);--shadow-tile:2px 3px 0 rgba(61,43,31,.09),0 8px 18px rgba(61,43,31,.07);--shadow-tile-hover:3px 4px 0 rgba(61,43,31,.10),0 14px 26px rgba(61,43,31,.10);--shadow-selected:3px 4px 0 rgba(201,78,44,.30),0 12px 24px rgba(201,78,44,.12);--shadow-key:0 4px 0 rgba(61,43,31,.55),0 12px 24px rgba(61,43,31,.12);--shadow-key-hover:0 6px 0 rgba(61,43,31,.55),0 16px 28px rgba(61,43,31,.14);--shadow-key-press:0 1px 0 rgba(61,43,31,.55),0 5px 10px rgba(61,43,31,.08);--shadow-key-soft:0 3px 0 rgba(61,43,31,.22);--shadow-key-soft-hover:0 5px 0 rgba(61,43,31,.22);--ring-focus:0 0 0 3px rgba(232,97,60,.16)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-body);background:var(--paper);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased;min-height:100vh}body:after{content:"";position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.5;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.06'/%3E%3C/svg%3E")}::selection{background:var(--coral);color:var(--card)}img,svg{display:block}button{font-family:inherit;cursor:pointer}:focus-visible{outline:3px solid var(--coral);outline-offset:2px;border-radius:4px}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:60;background:rgba(251,243,228,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1.5px solid var(--ink-faint)}.topbar-inner{width:min(1080px,92vw);margin:0 auto;gap:.6rem;padding:.6rem 0}.logo,.topbar-inner{display:flex;align-items:center}.logo{gap:.55rem;text-decoration:none;color:var(--ink)}.logo-mark{width:34px;height:34px;border-radius:50%;flex-shrink:0}.logo-zh{font-family:var(--font-display);font-weight:700;font-size:1.16rem}.logo-en{font-family:var(--font-latin);font-style:italic;font-size:.8rem;color:var(--ink-soft);margin-top:.32em}.topbar nav{margin-left:auto}.topbar nav a{font-size:.96rem;color:var(--ink-soft);text-decoration:none;padding:.25em 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}.topbar nav a:hover{color:var(--coral);border-color:var(--coral)}.ms-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;font-family:var(--font-display);font-weight:600;color:var(--cream-text);text-decoration:none;border:var(--line);border-radius:var(--radius-inner);padding:.8em 1.4em;box-shadow:var(--shadow-key);transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.ms-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-key-hover)}.ms-btn:active{transform:translateY(3px);box-shadow:var(--shadow-key-press)}.ms-btn-coral{background:var(--coral)}.ms-btn-coral:hover{background:var(--coral-deep)}.ms-btn-night{background:var(--night)}.ms-btn-night:hover{background:var(--night-deep)}.ms-btn-ghost{background:var(--paper-2);color:var(--ink);box-shadow:var(--shadow-key-soft)}.ms-btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow-key-soft-hover);background:#EFE0C4}.ms-btn-ghost:active{transform:translateY(2px);box-shadow:0 1px 0 rgba(61,43,31,.22)}.ms-toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(8px);z-index:98;background:var(--card);color:var(--ink);border:var(--line);border-radius:var(--radius-pill);box-shadow:var(--shadow-tile);font-size:.88rem;padding:.45em 1.2em;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;max-width:88vw;text-align:center}.ms-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}