@import "https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800;900&display=swap";
*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#fff9f2;--white:#fff;--ink:#1a202c;--ink-light:#2d3748;--ink-muted:#1a202c80;--border:#00000017;--sidebar-w:260px;--chinese:#d4380d;--chinese-mid:#ff7a45;--chinese-light:#ffcba4;--western:#1d4ed8;--western-mid:#3b82f6;--western-light:#b8ceff;--ds:#15803d;--ds-mid:#22c55e;--ds-light:#a8edbe;--gold:#b45309;--gold-mid:#d97706;--gold-light:#fffbeb;--green:var(--ds);--green-light:var(--ds-mid);--red:var(--chinese);--blue:var(--western)}body{color:var(--ink);background:#fff;min-height:100vh;font-family:Nunito,sans-serif}.stars-bg{pointer-events:none;z-index:0;position:absolute;inset:0;overflow:hidden}.star{background:var(--gold-mid);animation:twinkle var(--duration,4s) ease-in-out infinite;opacity:var(--min-opacity,.06);border-radius:50%;position:absolute}@keyframes twinkle{0%,to{opacity:var(--min-opacity,.06)}50%{opacity:var(--max-opacity,.22)}}.gold-divider{background:linear-gradient(90deg,transparent,var(--gold-mid),transparent);height:2px}.logo-glow{color:var(--ds);text-shadow:0 0 28px #15803d33}.card-glow{background:#fffffff7;border:1.5px solid #15803d26;box-shadow:0 4px 24px #15803d1a}.ds-select{appearance:none;color:var(--ink);background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%231A202C' stroke-width='1.5' fill='none'/%3E%3C/svg%3E") right .75rem center no-repeat;border:1.5px solid #15803d38;outline:none;font-family:Nunito,sans-serif;transition:border-color .2s,box-shadow .2s}.ds-select:hover{border-color:var(--ds)}.ds-select:focus{border-color:var(--ds);box-shadow:0 0 0 3px #15803d1a}.btn-gold{color:#fff;letter-spacing:.04em;cursor:pointer;text-shadow:0 1px 2px #00000040;background:linear-gradient(135deg,#d4380d,#fa8c16);border:none;font-family:Nunito,sans-serif;font-weight:800;transition:all .2s;box-shadow:0 3px 14px #b4530980}.btn-gold:hover:not(:disabled){background:linear-gradient(135deg,#c0320b,#e87d14);transform:translateY(-1px);box-shadow:0 5px 20px #d4380d66}.btn-gold:disabled{opacity:.4;cursor:not-allowed}.btn-green{background:linear-gradient(135deg, var(--ds), var(--ds-mid));color:#fff;cursor:pointer;border:none;font-family:Nunito,sans-serif;font-weight:700;transition:all .2s;box-shadow:0 3px 12px #15803d61}.btn-green:hover{transform:translateY(-1px);box-shadow:0 5px 18px #15803d7a}.section-chinese{border-left:4px solid var(--chinese)}.tag-chinese{background:var(--chinese-light);color:var(--chinese);font-weight:700}.section-western{border-left:4px solid var(--western)}.tag-western{background:var(--western-light);color:var(--western);font-weight:700}.section-ds{border-left:4px solid var(--ds)}.tag-ds{background:var(--ds-light);color:var(--ds);font-weight:700}.sidebar{top:0;left:calc(-1 * var(--sidebar-w));width:var(--sidebar-w);z-index:100;background:#fff9f2;border-right:none;flex-direction:column;height:100vh;transition:left .3s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;overflow-y:auto;box-shadow:2px 0 16px #0000000d}.sidebar.open{left:0}.sidebar-overlay{z-index:99;background:#00000052;display:none;position:fixed;inset:0}.sidebar-overlay.show{display:block}@media (min-width:1024px){.sidebar{border-right:none;left:0}.sidebar-overlay{display:none!important}.main-content{margin-left:var(--sidebar-w);border-left:none}}.nav-item{cursor:pointer;border-left:3px solid #0000;align-items:center;gap:.6rem;padding:.5rem 1.25rem;font-family:Nunito,sans-serif;font-size:.95rem;text-decoration:none;transition:background .15s,opacity .15s;display:flex}.nav-item:hover{opacity:.8}input[type=text]{outline:none;transition:border-color .2s,box-shadow .2s}input[type=text]:focus{box-shadow:0 0 0 3px #15803d1a;border-color:var(--ds)!important}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-thumb{background:#0000001a;border-radius:3px}.sign-topnav{align-items:center;gap:.25rem;margin-bottom:.5rem;padding:.4rem 0;font-family:Nunito,sans-serif;font-size:.75rem;font-weight:700;display:flex;overflow-x:auto}.sign-topnav .sign-breadcrumb{color:var(--ink-muted);white-space:nowrap;margin-left:auto;font-size:.68rem;font-weight:500}.sign-topnav .sign-breadcrumb a{border-radius:0;padding:0;font-weight:500}.sign-topnav .sign-breadcrumb a:hover{opacity:.7;background:0 0}.sign-topnav a{white-space:nowrap;border-radius:999px;padding:.25rem .65rem;text-decoration:none;transition:background .15s,color .15s,opacity .15s}.sign-topnav a:hover{opacity:.85}.sign-topnav a.nav-calc{color:var(--gold)}.sign-topnav a.nav-calc:hover{background:var(--gold-light)}.sign-topnav a.nav-ds{color:var(--ds)}.sign-topnav a.nav-ds:hover{background:var(--ds-light)}.sign-topnav a.nav-chinese{color:var(--chinese)}.sign-topnav a.nav-chinese:hover{background:var(--chinese-light)}.sign-topnav a.nav-western{color:var(--western)}.sign-topnav a.nav-western:hover{background:var(--western-light)}.sign-topnav a.nav-pill{border:1.5px solid #0000;padding:.4rem 1rem;font-size:.82rem;font-weight:800}.sign-topnav a.nav-pill:hover{opacity:.8}.sign-topnav a.nav-pill-gold{background:var(--gold-light);color:var(--gold);border-color:var(--gold)}.sign-topnav a.nav-pill-ds{background:var(--ds-light);color:var(--ds);border-color:var(--ds)}.sign-topnav a.nav-pill-chinese{color:var(--chinese);border-color:var(--chinese);background:#ffcba4}.sign-topnav a.nav-pill-western{color:var(--western);border-color:var(--western);background:#b8ceff}.topic-btn{text-align:center;cursor:default;border-radius:.5rem;padding:.65rem .8rem;font-family:Nunito,sans-serif;font-size:.85rem;font-weight:800;transition:transform .12s,box-shadow .12s;display:block}.topic-btn:hover{transform:translateY(-1px);box-shadow:0 3px 10px #0000001a}.topic-btn-chinese{background:var(--chinese-light);color:var(--chinese);border:1.5px solid var(--chinese-mid)}.topic-btn-chinese-solid{background:var(--chinese);color:#fff;border:none}.topic-btn-western{background:var(--western-light);color:var(--western);border:1.5px solid var(--western-mid)}