/* ==========================================================================
   quanquantest.bond · 全站主题（欢迎页 + 所有小游戏共用这一份）
   想换风格：只改下面 :root 里的色值/圆角/字号，全站立刻跟着变。
   风格基调：简约线条 · 米白底 · 棕色点缀
   ========================================================================== */

:root {
  /* —— 配色 —— */
  --bg:          #faf7f1;   /* 页面米白底 */
  --bg-soft:     #f3ede3;   /* 次级底色（棋盘/画布） */
  --surface:     #fffdfa;   /* 卡片白 */
  --line:        #e8dfd1;   /* 常规细线 */
  --line-2:      #d5c5ad;   /* 强调细线 / hover */
  --ink:         #3b3229;   /* 主文字：深棕 */
  --ink-2:       #7d6f5d;   /* 次要文字 */
  --brown:       #8c6a44;   /* 主棕 */
  --brown-2:     #6b4f2f;   /* 深棕（链接 hover） */
  --brown-3:     #c2a887;   /* 浅棕（装饰线） */
  --tint:        #f1e9dc;   /* 淡棕底 */

  /* —— 形状与排版 —— */
  --radius:      12px;
  --radius-sm:   9px;
  --maxw:        960px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-title: Georgia, "Songti SC", "Noto Serif SC", "Source Han Serif SC",
                "SimSun", serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.72 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brown-2); text-decoration: none; }
a:hover { color: var(--brown); }
h1, h2, h3 { font-weight: 500; margin: 0; }
p { margin: 0; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--ink-2); font-size: 13px; }

/* 一条细线，中间缀一颗小菱形 —— 全站的分段符号 */
.rule {
  position: relative;
  height: 1px;
  background: var(--line);
  margin: 0;
}
.rule::after {
  content: "";
  position: absolute; left: 50%; top: 50%;
  width: 6px; height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--bg);
  border: 1px solid var(--line-2);
  transform: rotate(45deg);
}

/* ============================ 首页 · 头部 ============================ */
.hero { padding: 88px 24px 56px; text-align: center; }
.hero .mark { color: var(--brown); margin-bottom: 26px; }
.hero .mark svg { display: block; margin: 0 auto; }
.hero .eyebrow {
  font-size: 11px; letter-spacing: .32em; text-transform: uppercase;
  color: var(--ink-2); margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--font-title);
  font-size: clamp(30px, 6vw, 44px);
  letter-spacing: .02em;
  color: var(--brown-2);
}
.hero .lede {
  max-width: 30em; margin: 22px auto 0;
  color: var(--ink-2); font-size: 15px;
}
.hero .jump {
  margin-top: 34px; font-size: 13px; letter-spacing: .06em;
  color: var(--line-2);
}
.hero .jump a { border-bottom: 1px solid var(--line-2); padding-bottom: 2px; }
.hero .jump span { margin: 0 12px; color: var(--line-2); }

/* ============================ 首页 · 区块 ============================ */
.block { padding: 44px 24px; }
.block-title {
  font-size: 12px; letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink-2); font-weight: 500;
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 26px;
}
.block-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.cards {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(232px, 1fr));
}
.cards-narrow { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* 首页入口：5 张卡 —— 上排 3 张各占 1/3，下排 2 张宽卡各占 1/2；
   靠 6 列网格实现，窄屏（≤820px）整体回落成单列，不会留下半张空卡。 */
.cards-entries { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.cards-entries > .card { grid-column: span 2; }
.cards-entries > .card--wide { grid-column: span 3; }
@media (max-width: 820px) {
  .cards-entries { grid-template-columns: 1fr; }
  .cards-entries > .card,
  .cards-entries > .card--wide { grid-column: 1 / -1; }
}

.card {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 20px 20px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .18s ease, transform .18s ease, background .18s ease;
}
a.card:hover {
  border-color: var(--line-2);
  background: #fffefc;
  transform: translateY(-2px);
}
.card-icon { color: var(--brown); flex: 0 0 auto; margin-top: 2px; }
.card-icon svg { display: block; }
.card-body h3 {
  font-size: 16px; color: var(--brown-2); letter-spacing: .01em;
  display: flex; align-items: center; gap: 6px;
}
.card-body p { margin-top: 6px; font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }
.card-body .tag {
  display: inline-block; margin-top: 10px;
  font-size: 11px; letter-spacing: .12em;
  color: var(--brown); border: 1px solid var(--line-2);
  border-radius: 999px; padding: 2px 9px;
}
.ext { font-size: 12px; color: var(--brown-3); }

.note { margin-top: 18px; font-size: 13px; color: var(--ink-2); }

/* ============================ 首页 · 页脚 ============================ */
.site-footer { padding: 30px 24px 60px; text-align: center; }
.site-footer .rule { margin-bottom: 22px; }
.site-footer .icp { font-size: 13px; letter-spacing: .04em; }
.site-footer .icp a { color: var(--ink-2); }
.site-footer .icp a:hover { color: var(--brown); }
.site-footer .muted { margin-top: 6px; }

/* ==========================================================================
   小游戏页面框架（各游戏共用）
   ========================================================================== */
.game-wrap { max-width: 760px; margin: 0 auto; padding: 30px 20px 60px; }

.game-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.game-head h1 {
  font-family: var(--font-title); font-size: 22px; color: var(--brown-2);
  letter-spacing: .02em;
}
.game-head .sub { font-size: 13px; color: var(--ink-2); }
.back { font-size: 13px; color: var(--ink-2); }
.back:hover { color: var(--brown); }

.game-bar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  margin: 18px 0 20px; padding: 12px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.game-bar .stats { display: flex; gap: 20px; font-size: 13px; color: var(--ink-2); }
.game-bar .stats b { color: var(--brown-2); font-weight: 500; font-variant-numeric: tabular-nums; }
.game-bar .spacer { flex: 1; }

.btn {
  font: inherit; font-size: 13px; color: var(--brown-2);
  background: var(--surface); border: 1px solid var(--line-2);
  border-radius: 999px; padding: 7px 18px; cursor: pointer;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.btn:hover { background: var(--tint); border-color: var(--brown-3); color: var(--brown-2); }

.stage { display: flex; justify-content: center; }
.tip { margin-top: 20px; font-size: 13px; color: var(--ink-2); text-align: center; }

.overlay {
  margin-top: 18px; text-align: center;
  font-size: 14px; color: var(--brown-2);
}
.overlay .big { font-family: var(--font-title); font-size: 20px; display: block; margin-bottom: 8px; }

canvas {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: block; max-width: 100%; height: auto;
  touch-action: none;
}

/* ==========================================================================
   公共层 /assets/qq.js 用到的样式：用户名门禁 · 摸鱼模式 · 排行榜 · 提示条
   ========================================================================== */

/* ---- 顶部玩家信息（游戏页工具条右侧） ---- */
.qq-chip { font-size: 12.5px; color: var(--ink-2); display: inline-flex; align-items: center; gap: 8px; }
.qq-chip b { color: var(--brown); font-weight: 500; }
.qq-chip button {
  font: inherit; font-size: 12px; color: var(--ink-2); background: none;
  border: 0; border-bottom: 1px solid var(--line-2); padding: 0 0 1px; cursor: pointer;
}
.qq-chip button:hover { color: var(--brown); }

/* ---- 用户名门禁 ---- */
body.qq-gated { overflow: hidden; }
body.qq-gated .game-bar,
body.qq-gated .stage,
body.qq-gated .tip,
body.qq-gated .overlay { opacity: .28; filter: saturate(.5); pointer-events: none; user-select: none; }
.qq-gate {
  position: fixed; inset: 0; z-index: 60;
  display: grid; place-items: center; padding: 24px;
  background: rgba(59, 50, 41, .28);
  backdrop-filter: blur(3px);
}
.qq-gate-card {
  width: min(400px, 100%);
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  padding: 30px 28px 26px;
  text-align: center;
  box-shadow: 0 18px 40px -28px rgba(59, 50, 41, .55);
}
.qq-gate-card .mark { color: var(--brown); margin-bottom: 14px; }
.qq-gate-card h2 { font-family: var(--font-title); font-size: 19px; color: var(--brown-2); }
.qq-gate-card p { margin-top: 10px; font-size: 13px; color: var(--ink-2); line-height: 1.7; }
.qq-gate-card form { margin-top: 22px; display: flex; gap: 8px; }
.qq-gate-card input {
  flex: 1; font: inherit; font-size: 14px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line-2);
  border-radius: 999px; padding: 10px 16px; outline: none;
}
.qq-gate-card input:focus { border-color: var(--brown-3); background: #fff; }
.qq-gate-card .err { margin-top: 10px; font-size: 12.5px; color: #a2543f; min-height: 1em; }

/* ---- 提示条 ---- */
.qq-toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 12px);
  z-index: 70; max-width: 90vw;
  background: var(--brown-2); color: #fdfaf5;
  font-size: 13px; padding: 10px 20px; border-radius: 999px;
  opacity: 0; transition: opacity .22s ease, transform .22s ease;
  pointer-events: none;
}
.qq-toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---- 排行榜 ---- */
.qq-board {
  margin-top: 44px; padding-top: 22px;
  border-top: 1px solid var(--line);
}
.qq-board-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.qq-board-head h2 {
  font-size: 12px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--ink-2); font-weight: 500;
}
.qq-board-head .sub { font-size: 12.5px; color: var(--ink-2); }
.qq-board-head .spacer { flex: 1; }
.qq-board-head .me { font-size: 12.5px; color: var(--brown); }
.qq-mini {
  font: inherit; font-size: 12px; color: var(--ink-2);
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; cursor: pointer;
}
.qq-mini:hover { border-color: var(--line-2); color: var(--brown); }

.qq-rows { list-style: none; margin: 16px 0 0; padding: 0; }
.qq-rows li {
  display: flex; align-items: baseline; gap: 12px;
  padding: 9px 4px; border-bottom: 1px dashed var(--line);
  font-size: 13.5px;
}
.qq-rows li:last-child { border-bottom: 0; }
.qq-rows .rk {
  width: 22px; text-align: center; font-family: var(--font-title);
  color: var(--brown-3); font-variant-numeric: tabular-nums;
}
.qq-rows li.top1 .rk { color: var(--brown-2); }
.qq-rows .un { color: var(--ink); }
.qq-rows .sc { margin-left: auto; color: var(--brown-2); font-variant-numeric: tabular-nums; }
.qq-rows .dt { color: var(--ink-2); font-size: 12.5px; min-width: 84px; text-align: right; }
.qq-rows li.mine { background: var(--tint); border-radius: var(--radius-sm); }
.qq-rows li.mine .un { color: var(--brown-2); }
.qq-board-note { margin-top: 12px; font-size: 12px; color: var(--ink-2); }

/* ---- 排行榜的难度/关卡标签 ---- */
.qq-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.qq-tabs[hidden] { display: none; }
.qq-tab {
  font: inherit; font-size: 12px; color: var(--ink-2);
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; cursor: pointer;
  transition: border-color .16s ease, color .16s ease, background .16s ease;
}
.qq-tab:hover { border-color: var(--line-2); color: var(--brown); }
.qq-tab-on { background: var(--tint); border-color: var(--brown-3); color: var(--brown-2); }
.qq-rows .df {
  font-size: 11px; color: var(--brown); border: 1px solid var(--line-2);
  border-radius: 999px; padding: 0 7px;
}

/* ---- 游戏内的难度 / 关卡选择器 ---- */
.seg {
  display: inline-flex;
  border: 1px solid var(--line-2); border-radius: 999px; overflow: hidden;
}
.seg button {
  font: inherit; font-size: 12px; color: var(--ink-2); background: none; border: 0;
  border-right: 1px solid var(--line); padding: 5px 13px; cursor: pointer;
  transition: background .16s ease, color .16s ease;
}
.seg button:last-child { border-right: 0; }
.seg button:hover { background: var(--tint); color: var(--brown); }
.seg button.on { background: var(--tint); color: var(--brown-2); }
.seg-label { font-size: 12.5px; color: var(--ink-2); margin-right: 8px; }
.seg-line { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; margin-top: 14px; }

/* 摸鱼模式下这些控件也跟着变成灰调 */
body.qq-diving .qq-tab, body.qq-diving .seg button { color: #666; border-color: #ddd; }
body.qq-diving .qq-tab-on, body.qq-diving .seg button.on { background: #f2f1ee; color: #333; }

/* ==========================================================================
   摸鱼模式：把游戏夹在一份像样的办公文档里（Alt+M 或右下角按钮切换）
   ========================================================================== */
.qq-shell { display: none; }
.qq-dive-btn {
  position: fixed; right: 20px; bottom: 20px; z-index: 50;
  font: inherit; font-size: 12.5px; color: var(--ink-2);
  background: rgba(255, 253, 250, .92); border: 1px solid var(--line-2);
  border-radius: 999px; padding: 8px 16px; cursor: pointer;
  backdrop-filter: blur(4px);
}
.qq-dive-btn:hover { color: var(--brown); border-color: var(--brown-3); }
/* 摸鱼模式下把切换按钮压到几乎看不出，鼠标移过去才现形（免得被一眼发现） */
body.qq-diving .qq-dive-btn {
  opacity: .22; border-color: transparent; background: transparent;
  transition: opacity .3s ease;
}
body.qq-diving .qq-dive-btn:hover { opacity: .95; border-color: var(--line-2); background: #fff; }
.qq-dive-btn kbd {
  font: inherit; font-size: 11px; color: var(--brown-3);
  border: 1px solid var(--line); border-radius: 4px; padding: 0 4px; margin-left: 6px;
}

/* 摸鱼模式下的整体外观：白纸、宋体、灰字 */
body.qq-diving { background: #eceae6; }
body.qq-diving .qq-shell { display: block; }
body.qq-diving .game-head,
body.qq-diving .back,
body.qq-diving .tip,
body.qq-diving .qq-board,
body.qq-diving .qq-chip,
body.qq-diving .site-footer { display: none; }
body.qq-diving .game-wrap {
  max-width: 820px; margin: 26px auto; padding: 54px 64px 60px;
  background: #fff; border: 1px solid #e2e0dc;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .06);
  font-family: "Songti SC", "SimSun", Georgia, serif;
  color: #262626;
}
body.qq-diving .game-bar {
  border: 0; border-bottom: 1px solid #e6e4e0; margin: 26px 0 18px; padding: 0 0 10px;
  font-family: inherit; color: #666;
}
body.qq-diving .game-bar .stats { color: #777; }
body.qq-diving .game-bar .stats b { color: #333; font-weight: 600; }
body.qq-diving .stage {
  padding: 16px; border: 1px solid #e6e4e0; background: #fcfcfb;
}
body.qq-diving .btn { color: #444; border-color: #d8d6d2; background: #fff; border-radius: 4px; }
body.qq-diving .btn:hover { background: #f6f5f2; border-color: #c9c6c1; color: #222; }
body.qq-diving .overlay { color: #333; font-family: inherit; }
body.qq-diving .overlay .big { font-family: inherit; font-size: 17px; }

/* 文档本体 */
.qq-doc-title { font-size: 21px; font-weight: 600; color: #1f1f1f; letter-spacing: .04em; }
.qq-doc-meta { margin-top: 8px; padding-bottom: 14px; border-bottom: 1px solid #e6e4e0;
  font-size: 12.5px; color: #8a8a8a; }
.qq-para { margin-top: 14px; font-size: 14px; line-height: 2; color: #3a3a3a; text-align: justify; }
.qq-para .h { font-weight: 600; color: #222; }
.qq-figcap { margin: 0 0 10px; font-size: 12.5px; color: #8a8a8a; }
.qq-table { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 13px; }
.qq-table th, .qq-table td {
  border: 1px solid #e2e0dc; padding: 7px 10px; text-align: left; color: #3a3a3a;
}
.qq-table th { background: #f7f6f3; font-weight: 600; color: #333; }
.qq-sign { margin-top: 22px; font-size: 13px; color: #555; text-align: right; }

/* 应急隐藏：摸鱼模式下按 Esc，游戏整块收起来，只剩一份看上去完整的工作材料；再按恢复 */
.qq-shell-panic { display: none; }
body.qq-panic .qq-shell-panic { display: block; }
body.qq-panic .stage,
body.qq-panic .game-bar,
body.qq-panic .qq-figcap,
body.qq-panic .overlay { display: none; }

/* 手机上的摸鱼文档：把纸边收窄，别让游戏区被挤成一条（正常模式在同一宽度下可用宽度更大） */
@media (max-width: 720px) {
  body.qq-diving .game-wrap { margin: 10px auto; padding: 26px 16px 34px; }
  body.qq-diving .stage { padding: 10px; }
  body.qq-diving .game-bar { margin: 18px 0 14px; }
  body.qq-diving .qq-doc-title { font-size: 18px; }
  body.qq-diving .qq-para { font-size: 13.5px; line-height: 1.9; }
  body.qq-diving .qq-table { font-size: 12px; }
}

/* ==========================================================================
   首页：左右艺术点缀 + 滚动揭示 + 悬停细节
   ========================================================================== */
.deco {
  position: fixed; top: 50%; z-index: 0;
  width: 150px; color: var(--brown-3);
  pointer-events: none; opacity: .85;
  transform: translateY(-50%);
  transition: color .5s ease, opacity .5s ease;
}
.deco svg { display: block; width: 100%; height: auto; overflow: visible; }
.deco-left { left: clamp(8px, 2.4vw, 64px); }
.deco-right { right: clamp(8px, 2.4vw, 64px); }
/* 鼠标移到任意卡片上时，两侧点缀稍微“亮”一下 */
body.deco-react .deco { color: var(--brown); opacity: 1; }
.deco .draw path,
.deco .draw circle,
.deco .draw line,
.deco .draw ellipse {
  stroke-dasharray: 420; stroke-dashoffset: 420;
  animation: draw 3.4s cubic-bezier(.22, .61, .36, 1) forwards;
}
.deco .draw > *:nth-child(2) { animation-delay: .35s; }
.deco .draw > *:nth-child(3) { animation-delay: .7s; }
.deco .draw > *:nth-child(4) { animation-delay: 1.05s; }
.deco .draw > *:nth-child(5) { animation-delay: 1.4s; }
.deco .draw > *:nth-child(6) { animation-delay: 1.7s; }
.deco .draw > *:nth-child(7) { animation-delay: 2s; }
.deco .draw > *:nth-child(8) { animation-delay: 2.2s; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* 呼吸般缓慢的动势：枝条随风轻摆、右边形体上下浮动、几颗小点明明暗暗 */
.deco .ring { transform-box: view-box; transform-origin: 66px 118px; animation: spin 76s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.deco .sway {
  transform-box: view-box; transform-origin: 78px 414px;
  animation: sway 15s ease-in-out infinite alternate;
}
@keyframes sway { from { transform: rotate(-.8deg); } to { transform: rotate(.8deg); } }
.deco .float {
  transform-box: view-box;
  animation: float 19s ease-in-out infinite alternate;
}
@keyframes float { from { transform: translateY(-5px); } to { transform: translateY(5px); } }
.deco .pulse { animation: pulse 7s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: .35; } 50% { opacity: .95; } }
@media (max-width: 1320px) { .deco { display: none; } }

/* 滚动揭示 */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .06s; }
.reveal.d2 { transition-delay: .12s; }
.reveal.d3 { transition-delay: .18s; }
.reveal.d4 { transition-delay: .24s; }
.reveal.d5 { transition-delay: .3s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .deco .draw path, .deco .draw circle, .deco .draw line, .deco .draw ellipse { animation: none; stroke-dashoffset: 0; }
  .deco .ring { animation: none; }
}

/* 卡片悬停细节：图标轻移、标题下划线生长、右上角细箭头 */
a.card { position: relative; overflow: hidden; }
a.card .card-icon { transition: transform .22s ease; }
a.card:hover .card-icon { transform: translateY(-2px); }
a.card .card-body h3 { position: relative; }
a.card .card-body h3::after {
  content: ""; position: absolute; left: 0; bottom: -3px; height: 1px; width: 0;
  background: var(--brown-3); transition: width .28s ease;
}
a.card:hover .card-body h3::after { width: 100%; }
a.card::after {
  content: "↗"; position: absolute; top: 14px; right: 16px;
  font-size: 12px; color: var(--brown-3);
  opacity: 0; transform: translate(-4px, 4px);
  transition: opacity .22s ease, transform .22s ease;
}
a.card[href^="/"]::after { content: "→"; }
a.card:hover::after { opacity: 1; transform: none; }

/* 页脚备案号旁边的分隔 */
.site-footer .split { margin: 0 8px; color: var(--line-2); }