/* CyanCodex 开源代码页 —— 配色与官网/App 保持一致（沧蓝绿） */
:root {
  --bg: #0B1512; --bg2: #0E1B16; --card: rgba(20, 38, 31, .62); --card2: rgba(255, 255, 255, .04);
  --line: rgba(74, 222, 128, .16); --txt: #E7F3EC; --dim: #9DB4A5;
  --accent: #4ADE80; --accent2: #22C55E;
  --code-bg: #0A1310; --radius: 16px; --shadow: 0 18px 50px rgba(0, 0, 0, .35);
  --tk-c: #6B8F7C; --tk-s: #A5E8B7; --tk-k: #68D391; --tk-n: #F6C177;
  --tk-t: #7DD3FC; --tk-a: #C4B5FD; --tk-h: #FDE68A;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #F4F8F6; --bg2: #FFFFFF; --card: rgba(255, 255, 255, .86); --card2: rgba(15, 23, 42, .03);
    --line: rgba(14, 122, 61, .18); --txt: #0F1F1A; --dim: #5B7268;
    --accent: #16A34A; --accent2: #15803D;
    --code-bg: #FFFFFF; --shadow: 0 18px 50px rgba(15, 42, 30, .10);
    --tk-c: #7A8C82; --tk-s: #166534; --tk-k: #15803D; --tk-n: #B45309;
    --tk-t: #0369A1; --tk-a: #6D28D9; --tk-h: #92400E;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--txt); font: 15px/1.65 -apple-system, "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh; overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); }
code { font-family: "Cascadia Mono", Consolas, "JetBrains Mono", monospace; font-size: .92em; }
b { font-weight: 700; }
.glow { position: fixed; border-radius: 50%; filter: blur(90px); opacity: .30; pointer-events: none; z-index: 0; }
.glow.g1 { width: 480px; height: 480px; background: #22C55E; top: -180px; left: -120px; }
.glow.g2 { width: 420px; height: 420px; background: #38BDF8; bottom: -200px; right: -120px; opacity: .18; }

.topbar {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px;
  padding: 12px 20px; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--txt); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 16px; letter-spacing: .3px; }
.brand-text i { font-style: normal; font-size: 12px; color: var(--dim); }
.topnav { margin-left: auto; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 14px; }
.topnav a { color: var(--dim); }
.topnav a:hover { color: var(--accent); }
.btn {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card2); color: var(--txt); cursor: pointer; font-size: 14px;
}
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); border-color: transparent; color: #04140C; font-weight: 700; }

.wrap { position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; padding: 26px 20px 10px; }
.hero h1 { font-size: clamp(24px, 3.4vw, 36px); margin: 6px 0 10px; letter-spacing: .4px; }
.hero .sub { color: var(--dim); max-width: 900px; margin: 0 0 18px; }
.stats { display: flex; flex-wrap: wrap; gap: 12px; }
.stat {
  display: flex; flex-direction: column; gap: 2px; padding: 10px 16px; border-radius: 12px;
  background: var(--card); border: 1px solid var(--line); min-width: 118px;
}
.stat .k { font-size: 12px; color: var(--dim); }
.stat b { font-size: 18px; }

.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; margin-top: 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow); margin-top: 16px; backdrop-filter: blur(6px);
}
.card h2 { font-size: 16px; margin: 0 0 10px; }
.plain { margin: 0; padding-left: 18px; }
.plain li { margin: 5px 0; }
.muted { color: var(--dim); }
.small { font-size: 12.5px; }

.browser { display: grid; grid-template-columns: 320px 1fr; gap: 0; padding: 0; overflow: hidden; min-height: 620px; }
.side { border-right: 1px solid var(--line); display: flex; flex-direction: column; min-width: 0; }
.side-head { display: flex; gap: 8px; padding: 12px; border-bottom: 1px solid var(--line); }
.search { flex: 1; display: flex; align-items: center; gap: 7px; background: var(--card2); border: 1px solid var(--line); border-radius: 10px; padding: 6px 10px; color: var(--dim); }
.search input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--txt); outline: none; font-size: 13.5px; }
.iconbtn {
  display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; flex: 0 0 auto;
  border-radius: 9px; border: 1px solid var(--line); background: var(--card2); color: var(--dim); cursor: pointer;
}
.iconbtn:hover { color: var(--accent); border-color: var(--accent); }
.tree { overflow: auto; padding: 8px 6px 16px; max-height: 72vh; font-size: 13.5px; }
.tree ul { list-style: none; margin: 0; padding-left: 12px; }
.tree > ul { padding-left: 4px; }
.tree li { margin: 1px 0; }
.node {
  display: flex; align-items: center; gap: 6px; padding: 3px 7px; border-radius: 8px; cursor: pointer;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--txt);
}
.node:hover { background: var(--card2); }
.node.active { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); font-weight: 600; }
.node .ico { flex: 0 0 auto; opacity: .75; }
.node .sz { margin-left: auto; font-size: 11.5px; color: var(--dim); }
.node.dir { color: var(--dim); font-weight: 600; }
.node.hide { display: none; }
.caret { display: inline-block; width: 10px; transition: transform .15s; }
.node.dir.closed .caret { transform: rotate(-90deg); }
.node.dir.closed + ul { display: none; }

.view { display: flex; flex-direction: column; min-width: 0; }
.view-head { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.view-head .path { font-family: "Cascadia Mono", Consolas, monospace; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.view-head .acts { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.view-head .meta { font-size: 12px; color: var(--dim); margin-right: 4px; }
.code { flex: 1; overflow: auto; background: var(--code-bg); max-height: 72vh; }
.code .placeholder { padding: 22px; color: var(--dim); font-size: 14px; }
.codewrap { display: flex; align-items: flex-start; min-width: 100%; }
.gutter {
  flex: 0 0 auto; padding: 12px 10px 24px; text-align: right; user-select: none; color: var(--dim);
  border-right: 1px solid var(--line); font: 12.5px/1.6 "Cascadia Mono", Consolas, monospace; opacity: .75;
  position: sticky; left: 0; background: var(--code-bg);
}
.gutter div { white-space: pre; }
pre.src { margin: 0; padding: 12px 18px 24px; font: 12.5px/1.6 "Cascadia Mono", Consolas, "JetBrains Mono", monospace; white-space: pre; tab-size: 4; }
.tk-c { color: var(--tk-c); font-style: italic; }
.tk-s { color: var(--tk-s); }
.tk-k { color: var(--tk-k); }
.tk-n { color: var(--tk-n); }
.tk-t { color: var(--tk-t); }
.tk-a { color: var(--tk-a); }
.tk-h { color: var(--tk-h); font-weight: 700; }

.gen-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }
.gen-grid > div { padding: 11px 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--card2); display: flex; flex-direction: column; gap: 4px; }
.gen-grid span { color: var(--dim); font-size: 13px; }
.foot { margin-top: 26px; border-top: 1px solid var(--line); padding: 18px 0 26px; color: var(--dim); font-size: 13px; }
.foot p { margin: 4px 0; }

@media (max-width: 900px) {
  .browser { grid-template-columns: 1fr; }
  .side { border-right: 0; border-bottom: 1px solid var(--line); }
  .tree { max-height: 40vh; }
  .code { max-height: 60vh; }
  .topnav { gap: 12px; font-size: 13px; }
}