:root {
  --fr-zhi: #e6ecef;
  --fr-mo: #1c2530;
  --fr-huang: #f2b705;
  --fr-huang-dan: #fbe7a6;
  --fr-hui: #5b7083;
  --fr-hui-shen: #46596a;
  --fr-xian: #c5d0d8;
  --fr-ci: #f7f9fa;
  --fr-bai: #ffffff;
  --fr-yuan-da: 33px;
  --fr-yuan-xiao: 9px;
  --fr-zh: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --fr-la: "Bahnschrift", "DIN Alternate", "Arial Narrow", sans-serif;
  --fr-kuan: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--fr-zhi);
  color: var(--fr-mo);
  font-family: var(--fr-zh);
  font-size: 16px;
  line-height: 1.75;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--fr-mo); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--fr-huang); text-decoration-thickness: 3px; }

:focus-visible { outline: 3px solid var(--fr-mo); outline-offset: 2px; border-radius: 3px; }

.fr-tiaoguo {
  position: absolute; left: 12px; top: -60px; z-index: 20;
  background: var(--fr-mo); color: var(--fr-zhi); padding: 10px 16px; border-radius: var(--fr-yuan-xiao);
  min-height: 44px;
}
.fr-tiaoguo:focus { top: 12px; }

.fr-zhu:focus { outline: none; }

/* ---------- 页头 ---------- */
.fr-ding { border-bottom: 1px solid var(--fr-xian); background: var(--fr-zhi); }
.fr-ding-nei {
  max-width: var(--fr-kuan); margin: 0 auto; padding: 10px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.fr-biao { display: inline-flex; align-items: center; min-height: 44px; color: var(--fr-mo); text-decoration: none; }
.fr-biao-tu { display: block; }
.fr-lan ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.fr-lan a {
  display: flex; align-items: center; min-height: 44px; padding: 0 14px;
  text-decoration: none; font-size: 15px; border-radius: var(--fr-yuan-xiao);
}
.fr-lan a:hover { background: var(--fr-ci); }
.fr-lan a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--fr-huang); font-weight: 700; }

/* ---------- 首页首屏 ---------- */
.fr-shou {
  max-width: var(--fr-kuan); margin: 0 auto; padding: 44px 24px 36px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr); gap: 52px; align-items: center;
}
.fr-shou h1 {
  font-size: 52px; line-height: 1.16; margin: 0 0 18px; letter-spacing: 0.01em;
  line-break: strict; text-wrap: balance; font-weight: 800;
}
.fr-shou-dao { font-size: 17px; margin: 0 0 24px; max-width: 30em; color: var(--fr-hui-shen); }

.fr-jian {
  display: grid; gap: 4px; text-decoration: none; padding: 16px 20px 18px;
  background: var(--fr-ci); border: 1px solid var(--fr-xian); border-left: 6px solid var(--fr-huang);
  border-radius: var(--fr-yuan-xiao); max-width: 34em;
}
.fr-jian:hover { border-color: var(--fr-mo); border-left-color: var(--fr-huang); }
.fr-jian-biao { font-size: 13px; color: var(--fr-hui-shen); font-weight: 700; }
.fr-jian-ti { font-size: 19px; font-weight: 700; line-height: 1.45; text-decoration: underline; text-decoration-color: var(--fr-xian); text-underline-offset: 4px; }
.fr-jian-shuo { font-size: 14px; color: var(--fr-hui-shen); line-height: 1.6; }

.fr-shou-you {
  background: var(--fr-ci); border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-da);
  padding: 34px 32px 26px;
}

/* 刻度尺 */
.fr-chi { padding: 34px 6px 30px; }
.fr-chi-gui {
  position: relative; height: 64px;
  border-bottom: 2px solid var(--fr-mo); border-right: 2px solid var(--fr-mo);
}
.fr-chi-dai {
  position: absolute; left: 20%; width: 60%; top: 0; bottom: 0;
  background: var(--fr-huang-dan); border-left: 1px solid var(--fr-huang); border-right: 1px solid var(--fr-huang);
  z-index: 0;
}
.fr-chi-gui::before { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    repeating-linear-gradient(to right, var(--fr-mo) 0 2px, transparent 2px 25%) left bottom / 100% 40px no-repeat,
    repeating-linear-gradient(to right, var(--fr-mo) 0 1.5px, transparent 1.5px 12.5%) left bottom / 100% 26px no-repeat,
    repeating-linear-gradient(to right, var(--fr-hui) 0 1px, transparent 1px 2.5%) left bottom / 100% 14px no-repeat;
}
.fr-chi-dai-zi {
  position: absolute; top: -20px; left: 50%; transform: translateX(-50%);
  font-size: 13px; font-weight: 700; white-space: nowrap; color: var(--fr-mo);
}
.fr-chi-shu {
  position: absolute; top: calc(100% + 6px); transform: translateX(-50%);
  font-family: var(--fr-la); font-size: 13px; color: var(--fr-hui-shen); line-height: 1;
}
.fr-chi-s0 { left: 0; transform: none; }
.fr-chi-s10 { left: 25%; }
.fr-chi-s20 { left: 50%; }
.fr-chi-s30 { left: 75%; }
.fr-chi-s40 { left: 100%; transform: translateX(-100%); }
.fr-chi-qi {
  position: absolute; bottom: -2px; width: 3px; height: calc(100% + 22px); background: var(--fr-mo);
  transform: translateX(-1.5px); z-index: 2;
}
.fr-chi-q8 { left: 20%; }
.fr-chi-q32 { left: 80%; }
.fr-chi-qi b {
  position: absolute; top: -26px; left: 50%; transform: translateX(-50%);
  font-family: var(--fr-la); font-size: 20px; line-height: 1; font-weight: 700;
  background: var(--fr-huang); color: var(--fr-mo); padding: 4px 7px 3px; border-radius: 6px; border: 2px solid var(--fr-mo);
}

/* 四盏灯 */
.fr-deng { list-style: none; margin: 8px 0 22px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.fr-deng-ge {
  justify-self: center; position: relative;
  width: 70px; height: 70px; border-radius: 50%;
  background: var(--fr-huang); border: 2px solid var(--fr-mo);
  box-shadow: 0 0 0 6px rgba(242, 183, 5, 0.28);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.fr-deng-zi { font-size: 15px; font-weight: 700; line-height: 1.1; }
.fr-deng-ge::after {
  content: ""; width: 12px; height: 7px; margin-top: 6px;
  border-left: 2.5px solid var(--fr-mo); border-bottom: 2.5px solid var(--fr-mo);
  transform: rotate(-45deg);
}

/* 码卡（首页与教程共用的内芯） */
.fr-maka { background: var(--fr-bai); border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-xiao); padding: 16px 18px; }
.fr-maka-hang { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.fr-maka-biao { font-size: 14px; color: var(--fr-hui-shen); }
.fr-maka-ma { font-family: var(--fr-la); font-size: 28px; font-weight: 700; letter-spacing: 0.06em; color: var(--fr-mo); background: none; }
.fr-maka .fr-maka-ma { font-size: 28px; border: 0; padding: 0; background: none; border-radius: 0; }
.fr-fuzhi {
  margin-left: auto; min-height: 44px; min-width: 76px; padding: 0 18px;
  font: inherit; font-size: 15px; font-weight: 700; color: var(--fr-mo);
  background: var(--fr-huang); border: 2px solid var(--fr-mo); border-radius: var(--fr-yuan-xiao); cursor: pointer;
}
.fr-fuzhi:hover { background: #ffc928; }
.fr-fuzhi-ok { background: var(--fr-bai); }
.fr-maka-shuo { margin: 10px 0 0; font-size: 14px; line-height: 1.6; color: var(--fr-hui-shen); }
.fr-maka-qu {
  display: flex; align-items: center; justify-content: center; margin-top: 14px; min-height: 48px; padding: 8px 16px;
  background: var(--fr-mo); color: var(--fr-zhi); font-weight: 700; text-decoration: none; border-radius: var(--fr-yuan-xiao);
}
.fr-maka-qu:hover { color: var(--fr-huang); }
.fr-maka-pi { margin: 10px 0 0; font-size: 13px; line-height: 1.6; color: var(--fr-hui-shen); }
.fr-maka-pi a { display: inline-block; padding: 4px 0; }

/* ---------- 首页首屏以下 ---------- */
.fr-shou-xia { max-width: var(--fr-kuan); margin: 0 auto; padding: 8px 24px 56px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.fr-shou-kuai { background: var(--fr-ci); border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-xiao); padding: 26px 28px 22px; }
.fr-shou-kuai h2, .fr-zheng h2, .fr-wenda h2 {
  font-size: 24px; line-height: 1.4; margin: 0 0 12px; line-break: strict; text-wrap: balance;
}
.fr-shou-kuai h2::before, .fr-zheng h2::before, .fr-wenda h2::before {
  content: ""; display: inline-block; width: 22px; height: 14px; margin-right: 10px; vertical-align: 1px;
  border-bottom: 2px solid var(--fr-mo);
  background: linear-gradient(to right, var(--fr-mo) 0 2px, transparent 2px 10px, var(--fr-huang) 10px 13px, transparent 13px 20px, var(--fr-mo) 20px 22px) left bottom / 22px 10px no-repeat;
}
.fr-shou-kuai p { margin: 0 0 12px; }
.fr-h2-duan { display: inline-block; }
.fr-shou-dian { margin: 0 0 12px; padding-left: 1.3em; }
.fr-shou-dian li { margin: 2px 0; }
.fr-shou-zifu { list-style: none; margin: 4px 0 8px; padding: 0; display: grid; gap: 12px; }
.fr-shou-zifu li { display: grid; grid-template-columns: 52px 1fr; gap: 12px; align-items: start; }
.fr-shou-zifu b {
  display: flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 50%;
  background: var(--fr-huang); border: 2px solid var(--fr-mo); font-size: 14px;
}
.fr-shou-mulu { grid-column: 1 / -1; }
.fr-shou-lie { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; }
.fr-shou-lie li { border-top: 1px solid var(--fr-xian); padding: 8px 0 10px; }
.fr-shou-lie a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 700; }
.fr-shou-lie span { display: block; font-size: 14px; color: var(--fr-hui-shen); }

/* ---------- 面包屑 ---------- */
.fr-xie { list-style: none; margin: 0 0 8px; padding: 0; display: flex; flex-wrap: wrap; font-size: 14px; color: var(--fr-hui-shen); }
.fr-xie li { display: flex; align-items: center; min-height: 44px; }
.fr-xie li + li::before { content: "/"; margin: 0 10px; color: var(--fr-xian); }
.fr-xie a { display: inline-flex; align-items: center; min-height: 44px; color: var(--fr-hui-shen); }

/* ---------- 文章页 ---------- */
.fr-wenmei { max-width: var(--fr-kuan); margin: 0 auto; padding: 20px 24px 8px; }
.fr-wen-h1 {
  font-size: 40px; line-height: 1.3; margin: 4px 0 14px; max-width: 24em;
  line-break: strict; text-wrap: balance; font-weight: 800;
}
.fr-h1-duan { display: inline-block; }
.fr-shuming { display: flex; flex-wrap: wrap; gap: 6px 22px; font-size: 14px; color: var(--fr-hui-shen); margin-bottom: 22px; }
.fr-fengmian { margin: 0 0 8px; max-width: 900px; }
.fr-fengmian img { border-radius: var(--fr-yuan-da); border: 1px solid var(--fr-xian); }
.fr-fengmian figcaption { font-size: 13px; color: var(--fr-hui-shen); margin-top: 8px; }

.fr-wen-kuang {
  max-width: var(--fr-kuan); margin: 0 auto; padding: 24px 24px 20px;
  display: grid; grid-template-columns: 236px minmax(0, 1fr); gap: 48px; align-items: start;
}
.fr-mulu { position: sticky; top: 16px; }
.fr-mulu-zhe { background: var(--fr-ci); border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-xiao); padding: 6px 14px 10px; }
.fr-mulu summary { min-height: 44px; display: flex; align-items: center; font-weight: 700; cursor: pointer; font-size: 15px; }
.fr-mulu ol { margin: 0; padding: 0 0 0 20px; font-size: 14px; line-height: 1.5; }
.fr-mulu li { margin: 0; }
.fr-mulu a { display: flex; align-items: center; min-height: 44px; padding: 4px 0; text-decoration: none; }
.fr-mulu a:hover { text-decoration: underline; }

.fr-zheng { max-width: 38em; font-size: 17px; line-height: 1.85; }
.fr-zheng > p, .fr-zheng li { line-break: strict; }
.fr-zheng p { margin: 0 0 1.05em; }
.fr-zheng h2 { margin: 2.1em 0 0.7em; scroll-margin-top: 16px; }
.fr-zheng h3 { font-size: 19px; margin: 1.6em 0 0.5em; }
.fr-zheng ul, .fr-zheng ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.fr-zheng li { margin: 0 0 0.45em; }
.fr-zheng strong { font-weight: 700; background: linear-gradient(transparent 62%, var(--fr-huang-dan) 62%); }
.fr-zheng code { font-family: var(--fr-la); font-size: 0.95em; background: var(--fr-ci); padding: 1px 5px; border-radius: 4px; border: 1px solid var(--fr-xian); }

.fr-tu { margin: 1.4em 0 1.6em; max-width: 504px; }
.fr-tu img { border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-xiao); background: var(--fr-bai); }
.fr-tu-zhai { max-width: 360px; }
.fr-tu figcaption { font-size: 14px; line-height: 1.6; color: var(--fr-hui-shen); margin-top: 8px; }

.fr-biaoge { overflow-x: auto; margin: 1.2em 0 1.6em; border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-xiao); background: var(--fr-bai); }
.fr-biaoge table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 15px; line-height: 1.6; }
.fr-biaoge th, .fr-biaoge td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--fr-xian); }
.fr-biaoge thead th { background: var(--fr-ci); font-size: 14px; border-bottom: 2px solid var(--fr-mo); }
.fr-biaoge tbody th { font-weight: 700; }
.fr-biaoge tr:last-child th, .fr-biaoge tr:last-child td { border-bottom: 0; }

.fr-jiucuo { margin: 1.5em 0; padding: 16px 20px 6px; background: var(--fr-bai); border: 1px solid var(--fr-xian); border-left: 6px solid var(--fr-huang); border-radius: var(--fr-yuan-xiao); font-size: 16px; }
.fr-jiucuo-biao { font-weight: 800; margin: 0 0 6px; }

.fr-kaka { margin: 1.6em 0 1.8em; padding: 18px; background: var(--fr-ci); border: 2px solid var(--fr-mo); border-radius: var(--fr-yuan-xiao); }
.fr-kaka-tou { margin: 0 0 10px; font-weight: 700; font-size: 15px; }

.fr-wenda { max-width: var(--fr-kuan); margin: 0 auto; padding: 16px 24px 8px; }
.fr-wenda dl { margin: 0; display: grid; gap: 12px; max-width: 52em; }
.fr-wenda-tiao { background: var(--fr-ci); border: 1px solid var(--fr-xian); border-radius: var(--fr-yuan-xiao); padding: 16px 20px; }
.fr-wenda dt { font-weight: 700; font-size: 17px; margin-bottom: 6px; }
.fr-wenda dd { margin: 0; font-size: 16px; }

.fr-quchu { max-width: var(--fr-kuan); margin: 0 auto; padding: 18px 24px 56px; }
.fr-quchu-biaoqian { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-bottom: 8px; }
.fr-quchu-ming { font-size: 14px; color: var(--fr-hui-shen); }
.fr-quchu ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.fr-quchu li span, .fr-quchu li a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 12px; border: 1px solid var(--fr-xian); border-radius: 999px; font-size: 14px; background: var(--fr-ci); }
.fr-quchu-hui { max-width: 46em; }
.fr-quchu-hui a { display: inline-block; padding: 6px 0; }

/* ---------- 列表、站务、搜索、404 ---------- */
.fr-liebiao, .fr-zhanwu, .fr-sou, .fr-cuo { max-width: 860px; margin: 0 auto; padding: 20px 24px 64px; }
.fr-lie-h1, .fr-zw-h1 { font-size: 38px; line-height: 1.3; margin: 4px 0 14px; line-break: strict; text-wrap: balance; font-weight: 800; }
.fr-lie-ye { font-size: 18px; margin-left: 12px; color: var(--fr-hui-shen); font-weight: 400; }
.fr-lie-dao { max-width: 38em; }
.fr-lie-gong { font-family: var(--fr-la); font-size: 15px; color: var(--fr-hui-shen); border-bottom: 2px solid var(--fr-mo); padding-bottom: 8px; }
.fr-lie { list-style: none; margin: 0; padding: 0; }
.fr-lie-tiao { padding: 18px 0; border-bottom: 1px solid var(--fr-xian); }
.fr-lie-ti { display: inline-flex; min-height: 44px; align-items: center; font-size: 21px; font-weight: 700; }
.fr-lie-zhai { margin: 4px 0 6px; color: var(--fr-hui-shen); }
.fr-lie-ri { font-size: 13px; color: var(--fr-hui-shen); }
.fr-fanye { display: flex; gap: 16px; align-items: center; padding-top: 18px; }
.fr-fanye a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--fr-mo); border-radius: var(--fr-yuan-xiao); }

.fr-zw-ri { font-size: 14px; color: var(--fr-hui-shen); margin-bottom: 18px; }
.fr-zw-wen { max-width: 38em; font-size: 17px; line-height: 1.85; }
.fr-zw-wen h2 { font-size: 21px; margin: 1.8em 0 0.5em; }
.fr-zw-wen ul, .fr-zw-wen ol { padding-left: 1.4em; }
.fr-zw-wen li { margin-bottom: 0.4em; }
.fr-zw-pang { list-style: none; margin: 36px 0 0; padding: 16px 0 0; border-top: 2px solid var(--fr-mo); display: flex; flex-wrap: wrap; gap: 0 22px; }
.fr-zw-pang a { display: inline-flex; align-items: center; min-height: 44px; font-size: 15px; }

.fr-sou-biao label { display: block; font-weight: 700; margin-bottom: 6px; }
.fr-sou-hang { display: flex; gap: 10px; }
.fr-sou-hang input {
  flex: 1; min-width: 0; min-height: 48px; padding: 0 14px; font: inherit; font-size: 17px; color: var(--fr-mo);
  background: var(--fr-bai); border: 2px solid var(--fr-mo); border-radius: var(--fr-yuan-xiao);
}
.fr-sou-hang button {
  min-height: 48px; padding: 0 20px; font: inherit; font-weight: 700; color: var(--fr-mo);
  background: var(--fr-huang); border: 2px solid var(--fr-mo); border-radius: var(--fr-yuan-xiao); cursor: pointer;
}
.fr-sou-zhuang { color: var(--fr-hui-shen); font-size: 15px; }
.fr-sou-jie { list-style: none; margin: 0; padding: 0; }
.fr-sou-jie li { padding: 14px 0; border-bottom: 1px solid var(--fr-xian); }
.fr-sou-jie a { display: inline-flex; align-items: center; min-height: 44px; font-size: 18px; font-weight: 700; }
.fr-sou-jie p { margin: 2px 0 0; font-size: 15px; color: var(--fr-hui-shen); }

.fr-cuo-hao { font-family: var(--fr-la); font-size: 72px; line-height: 1; margin: 12px 0 0; letter-spacing: 0.04em; color: var(--fr-hui); }
.fr-cuo-shuo { font-size: 17px; max-width: 34em; }
.fr-cuo-qu { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; max-width: 26em; }
.fr-cuo-qu a { display: flex; align-items: center; min-height: 48px; padding: 0 16px; background: var(--fr-ci); border: 1px solid var(--fr-xian); border-left: 6px solid var(--fr-huang); border-radius: var(--fr-yuan-xiao); text-decoration: none; font-weight: 700; }

/* ---------- 页脚 ---------- */
.fr-di { background: var(--fr-mo); color: #dfe6ea; }
.fr-di a { color: #f1f4f6; }
.fr-di :focus-visible { outline-color: var(--fr-huang); }
.fr-di-nei { max-width: var(--fr-kuan); margin: 0 auto; padding: 34px 24px 26px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 12px 48px; }
.fr-di .fr-biao { color: #f1f4f6; }
.fr-di-sheng, .fr-di-pi { font-size: 14px; line-height: 1.7; margin: 8px 0 0; max-width: 34em; }
.fr-di-pi a { display: inline-block; padding: 4px 0; }
.fr-di-lian { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-content: start; column-gap: 20px; }
.fr-di-lian a { display: flex; align-items: center; min-height: 44px; font-size: 14px; }
.fr-di-nian { grid-column: 1 / -1; margin: 12px 0 0; padding-top: 14px; border-top: 1px solid #3a4756; font-family: var(--fr-la); font-size: 13px; color: #b9c5ce; }

/* ---------- 窄屏 ---------- */
@media (max-width: 960px) {
  .fr-shou { grid-template-columns: minmax(0, 1fr); gap: 22px; padding-top: 26px; }
  .fr-shou-xia { grid-template-columns: minmax(0, 1fr); }
  .fr-wen-kuang { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .fr-mulu { position: static; }
  .fr-di-nei { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .fr-ding-nei { flex-wrap: wrap; padding: 4px 16px 0; gap: 0; }
  .fr-lan { width: 100%; }
  .fr-lan ul { justify-content: space-between; gap: 0; }
  .fr-lan a { padding: 0 8px; font-size: 15px; }
  .fr-shou { padding: 14px 16px 24px; gap: 14px; }
  .fr-shou h1 { font-size: 30px; line-height: 1.25; margin-bottom: 8px; }
  .fr-shou-dao { font-size: 15px; margin-bottom: 12px; line-height: 1.6; }
  .fr-jian { padding: 10px 14px 12px; }
  .fr-jian-ti { font-size: 16px; }
  .fr-jian-shuo { display: none; }
  .fr-shou-you { padding: 6px 14px 14px; border-radius: 22px; display: flex; flex-direction: column; }
  .fr-shou-you .fr-maka { order: 1; }
  .fr-chi { order: 2; padding: 44px 4px 26px; }
  .fr-deng { order: 3; margin: 0; gap: 6px; }
  .fr-shou-you .fr-maka { margin-top: 8px; padding: 10px 12px; }
  .fr-chi-gui { height: 46px; }
  .fr-deng-ge { width: 56px; height: 56px; box-shadow: 0 0 0 4px rgba(242, 183, 5, 0.28); }
  .fr-deng-zi { font-size: 13px; }
  .fr-deng-ge::after { margin-top: 3px; width: 10px; height: 6px; }
  .fr-maka .fr-maka-ma { font-size: 24px; }
  .fr-maka-shuo { margin-top: 6px; font-size: 13px; }
  .fr-shou-xia { padding: 0 16px 40px; gap: 16px; }
  .fr-shou-kuai { padding: 20px 16px 14px; }
  .fr-shou-kuai h2, .fr-zheng h2, .fr-wenda h2 { font-size: 21px; }
  .fr-shou-lie { grid-template-columns: 1fr; }
  .fr-wenmei, .fr-wen-kuang, .fr-wenda, .fr-quchu, .fr-liebiao, .fr-zhanwu, .fr-sou, .fr-cuo { padding-left: 16px; padding-right: 16px; }
  .fr-wen-h1 { font-size: 26px; line-height: 1.38; }
  .fr-lie-h1, .fr-zw-h1 { font-size: 28px; }
  .fr-zheng, .fr-zw-wen { font-size: 16px; line-height: 1.8; }
  .fr-fengmian img { border-radius: 18px; }
  .fr-di-nei { padding: 28px 16px 22px; }
}

@media (prefers-reduced-motion: no-preference) {
  .fr-fuzhi, .fr-lan a, .fr-maka-qu { transition: background-color 0.15s ease, color 0.15s ease; }
}