:root{--bg: #f6f4ee;--surface: #ffffff;--surface-2: #edeae0;--border: #ddd8ca;--text: #211e18;--muted: #6e685a;--accent: #14684e;--accent-hover: #0e5039;--danger: #b3372c;--success: #14684e;--radius: 10px;--r-sm: 6px;--r-md: 8px;--r-lg: 14px;--r-xl: 20px;--r-pill: 999px;--fs-xs: 12px;--fs-sm: 13px;--fs-md: 14px;--fs-base: 15px;--fs-lg: 17px;--on-accent: #fff;--code-bg: #16191d;--code-head: #21262c;--code-muted: #9aa4af;--font: "Segoe UI", "Helvetica Neue", "Noto Sans Thai", "Microsoft YaHei", system-ui, sans-serif;--font-display: Georgia, "Times New Roman", "Noto Serif Thai", "Songti SC", serif}:root[data-theme=dark]{--bg: #13151a;--surface: #1a1d24;--surface-2: #252a34;--border: #313745;--text: #e7e5df;--muted: #99958c;--accent: #2aa47d;--accent-hover: #37bd92;--danger: #e0685e;--success: #2aa47d;--code-bg: #101317;--code-head: #1a1e24}*{box-sizing:border-box}html,body{margin:0;min-height:100vh}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:var(--fs-base);line-height:1.65;touch-action:manipulation}@media(max-width:720px){input,select,textarea{font-size:16px}}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}h1,h2,h3{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;line-height:1.25}input,select,textarea{width:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text);padding:10px 12px;font:inherit;outline:none}input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #14684e1f}.btn{display:inline-block;background:var(--accent);color:var(--on-accent);border:none;border-radius:var(--r-md);padding:10px 22px;font:inherit;font-weight:600;cursor:pointer;text-align:center;transition:background .15s}.btn:hover{background:var(--accent-hover);color:var(--on-accent)}.btn.ghost{background:transparent;border:1.5px solid var(--text);color:var(--text)}.btn.ghost:hover{background:var(--text);color:var(--bg);border-color:var(--text)}.btn.block{display:block;width:100%}.btn:disabled{opacity:.45;cursor:not-allowed}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:0 1px 2px #211e180a}.md p{margin:0 0 10px}.md p:last-child{margin-bottom:0}.md ul,.md ol{margin:4px 0 8px;padding-left:22px}.md h1,.md h2,.md h3,.md h4{font-size:var(--fs-base);margin:12px 0 6px}.md blockquote{margin:8px 0;padding:2px 12px;border-left:3px solid var(--border);color:var(--muted)}.md table{border-collapse:collapse;margin:8px 0;font-size:var(--fs-sm);display:block;overflow-x:auto}.md th,.md td{border:1px solid var(--border);padding:5px 10px}.md code{background:var(--surface-2);padding:1px 6px;border-radius:var(--r-sm);font-size:var(--fs-sm)}.md pre code{background:none;padding:0;border-radius:0}.md .katex-display{margin:10px 0;overflow-x:auto;overflow-y:hidden;padding:2px 0}.clock-card{width:420px;max-width:100%;margin:12px 0;border-radius:16px;padding:22px 26px;display:flex;align-items:center;gap:22px;background:#1a1d24;border:1px solid #2a2f3a;box-shadow:0 2px 14px #00000059}.clock-card .cc-info{flex:1;min-width:0}.clock-card .cc-head{display:flex;align-items:center;gap:7px;margin-bottom:10px}.clock-card .cc-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:clock-pulse 1.8s ease-in-out infinite}@keyframes clock-pulse{0%,to{opacity:.45}50%{opacity:1}}.clock-card .cc-label{font-size:var(--fs-sm);letter-spacing:.5px;color:#9aa5a0}.clock-card .cc-time{font-variant-numeric:tabular-nums;font-weight:650;font-size:30px;line-height:1.1;color:#eef2f0}.clock-card .cc-sec{font-size:17px;font-weight:500;color:var(--accent)}.clock-card .cc-date{margin-top:8px;font-size:var(--fs-base);color:#c6cdc9}.clock-card .cc-lunar{margin-top:3px;font-size:var(--fs-md);color:#778078}.clock-card .cc-lunar:empty{display:none}.clock-card .cc-local{margin-top:10px;padding-top:8px;font-size:var(--fs-xs);display:flex;justify-content:space-between;gap:8px;border-top:1px solid #262b34;color:#778078}.clock-card .cc-local b{font-variant-numeric:tabular-nums;font-weight:600;color:#c6cdc9}.clock-card .dial{width:128px;height:128px;flex-shrink:0}.clock-card .dial circle.face{fill:none;stroke-width:2;stroke:#2e3440}.clock-card .dial text{font-size:10.5px;font-weight:500;text-anchor:middle;dominant-baseline:central;font-variant-numeric:tabular-nums;fill:#6b7480}.clock-card .dial text.q{font-size:12px;font-weight:700;fill:var(--accent)}.clock-card .hand{stroke-linecap:round;transform-origin:60px 60px}.clock-card .hand.h{stroke-width:4.4;stroke:#dfe6e2}.clock-card .hand.m{stroke-width:3;stroke:#dfe6e2}.clock-card .hand.s{stroke-width:1.6;stroke:var(--accent);transition:transform .18s cubic-bezier(.4,2.2,.55,.8)}.clock-card .pin{fill:var(--accent)}@media(max-width:520px){.clock-card{gap:14px;padding:18px}.clock-card .dial{width:104px;height:104px}.clock-card .cc-time{font-size:26px}}.code-block{margin:12px 0;border-radius:var(--radius);overflow:hidden;background:var(--code-bg)}.code-head{display:flex;align-items:center;justify-content:space-between;padding:5px 12px;background:var(--code-head);color:var(--code-muted);font-size:var(--fs-xs)}.code-copy{display:flex;align-items:center;gap:5px;background:none;border:none;cursor:pointer;color:inherit;font:inherit;font-size:var(--fs-xs);padding:2px 4px}.code-copy:hover{color:var(--on-accent)}.chip-icon{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.8}.code-block pre{margin:0;padding:12px 14px;overflow-x:auto;font-size:var(--fs-sm);line-height:1.55}.error{color:var(--danger);font-size:var(--fs-md);margin:8px 0}.ok{color:var(--success);font-size:var(--fs-md);margin:8px 0}.muted{color:var(--muted)}.container{max-width:1080px;margin:0 auto;padding:0 20px}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}