/* ============================================================
   Appteka 应用商店 — 单页官网样式
   视觉原型：社区编辑型（白灰底 + 单一品牌绿 + 实线边框 + 索引卡）
   ============================================================ */

:root {
  --aptk-zhu: #2f9b04;
  --aptk-zhu-an: #237a03;
  --aptk-zhu-dan: #eaf5e1;
  --aptk-zhu-xian: #c9e4b5;
  --aptk-mo: #14170f;
  --aptk-ci: #565d4d;
  --aptk-hui: #8a9182;
  --aptk-xian: #e3e7dd;
  --aptk-xian-shen: #d3d9c9;
  --aptk-bai: #ffffff;
  --aptk-bei: #f7f8f5;
  --aptk-bei-shen: #f1f3ee;
  --aptk-lu-bei: #f4f9ef;
  --aptk-lu-bei-shen: #edf6e5;
  --aptk-yuan-xiao: 8px;
  --aptk-yuan: 10px;
  --aptk-yuan-da: 14px;
  --aptk-zhexian: 0 8px 22px rgba(20, 23, 15, 0.06);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background-color: var(--aptk-bai);
  color: var(--aptk-mo);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
}

a {
  color: var(--aptk-zhu-an);
  text-decoration: none;
}

h1,
h2,
h3,
p,
ul,
ol,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--aptk-zhu);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 无障碍跳转 */
.aptk-tiaozhuan {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 40;
  background: var(--aptk-zhu);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 var(--aptk-yuan-xiao) 0;
}

.aptk-tiaozhuan:focus {
  left: 0;
}

/* 版心 */
.aptk-kuan {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   页头
   ============================================================ */

.aptk-yetou {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--aptk-xian);
  backdrop-filter: saturate(180%) blur(8px);
}

.aptk-yetou-kuan {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 12px 24px;
}

.aptk-pinpai {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--aptk-mo);
}

.aptk-pinpai-tu {
  display: block;
  width: 36px;
  height: 36px;
  border-radius: 9px;
}

.aptk-pinpai-ming {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0;
}

.aptk-daohang {
  flex: 1 1 auto;
}

.aptk-daohang-liebiao {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.aptk-daohang-lianjie {
  display: block;
  padding: 6px 11px;
  font-size: 15px;
  color: var(--aptk-ci);
  border-radius: var(--aptk-yuan-xiao);
  border: 1px solid transparent;
}

.aptk-daohang-lianjie:hover {
  color: var(--aptk-zhu-an);
  border-color: var(--aptk-xian);
}

.aptk-daohang-lianjie.aptk-xuanzhong {
  color: var(--aptk-zhu-an);
  background-color: var(--aptk-zhu-dan);
  border-color: var(--aptk-zhu-xian);
  font-weight: 700;
}

.aptk-xiazai-anniu {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--aptk-zhu);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--aptk-yuan-xiao);
  border: 1px solid var(--aptk-zhu);
}

.aptk-xiazai-anniu:hover {
  background-color: var(--aptk-zhu-an);
  border-color: var(--aptk-zhu-an);
}

.aptk-yidong-caidan {
  display: none;
  position: relative;
}

.aptk-caidan-anniu {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  font-size: 21px;
  color: var(--aptk-mo);
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan-xiao);
  background-color: var(--aptk-bai);
}

.aptk-caidan-anniu::-webkit-details-marker {
  display: none;
}

.aptk-yidong-caidan[open] .aptk-caidan-anniu {
  color: var(--aptk-zhu-an);
  border-color: var(--aptk-zhu-xian);
  background-color: var(--aptk-zhu-dan);
}

.aptk-yidong-daohang {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 208px;
  background-color: var(--aptk-bai);
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan);
  box-shadow: var(--aptk-zhexian);
  padding: 8px;
}

.aptk-yidong-liebiao {
  display: grid;
  gap: 2px;
}

.aptk-yidong-liebiao .aptk-daohang-lianjie {
  padding: 9px 12px;
}

/* ============================================================
   首屏
   ============================================================ */

.aptk-shouye {
  background-color: var(--aptk-lu-bei);
  border-bottom: 1px solid var(--aptk-xian);
  padding: 52px 0 56px;
}

.aptk-shouye-kuan {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 452px);
  align-items: center;
  gap: 52px;
}

.aptk-yinzi {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--aptk-zhu-an);
  background-color: var(--aptk-bai);
  border: 1px solid var(--aptk-zhu-xian);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 16px;
}

.aptk-dabiaoti {
  font-size: 32px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0;
}

.aptk-fubiaoti {
  margin-top: 12px;
  font-size: 19px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--aptk-zhu-an);
}

.aptk-shouye-duanluo {
  margin-top: 14px;
  font-size: 16px;
  color: var(--aptk-ci);
  max-width: 40em;
}

.aptk-caozuo-qu {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.aptk-zhuanhuan-anniu {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--aptk-zhu);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  padding: 13px 24px;
  border-radius: var(--aptk-yuan-xiao);
  border: 1px solid var(--aptk-zhu);
}

.aptk-zhuanhuan-anniu:hover {
  background-color: var(--aptk-zhu-an);
  border-color: var(--aptk-zhu-an);
}

.aptk-fu-anniu {
  display: inline-flex;
  align-items: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--aptk-mo);
  padding: 12px 20px;
  border: 1px solid var(--aptk-xian-shen);
  border-radius: var(--aptk-yuan-xiao);
  background-color: var(--aptk-bai);
}

.aptk-fu-anniu:hover {
  color: var(--aptk-zhu-an);
  border-color: var(--aptk-zhu-xian);
}

/* 二维码仅桌面端展示：移动端与平板隐藏（桌面断点见响应式区 1061px） */
.aptk-saoma-qu {
  display: none;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px dashed var(--aptk-xian-shen);
}

.aptk-saoma-tu {
  display: block;
  width: 144px;
  height: auto;
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan-xiao);
  background-color: var(--aptk-bai);
  padding: 6px;
  flex: 0 0 auto;
}

.aptk-saoma-shuo {
  font-size: 14px;
  color: var(--aptk-ci);
  max-width: 16em;
}

/* ============================================================
   首屏发现面板（静态界面示意）
   ============================================================ */

.aptk-faxian-mianban {
  background-color: var(--aptk-bai);
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan-da);
  box-shadow: 0 14px 34px rgba(20, 23, 15, 0.08);
  padding: 12px;
  width: 100%;
}

.aptk-mianban-dingbu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px 10px;
  border-bottom: 1px solid var(--aptk-xian);
}

.aptk-mianban-pinpai {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
}

.aptk-mianban-pinpai img {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 6px;
}

.aptk-mianban-gongju {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  color: var(--aptk-hui);
}

.aptk-sousuo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--aptk-hui);
  background-color: var(--aptk-bei-shen);
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan-xiao);
}

.aptk-fenlei-tiao {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.aptk-fenlei-tiao::-webkit-scrollbar {
  display: none;
}

.aptk-fenlei-biaoqian {
  flex: 0 0 auto;
  font-size: 13px;
  padding: 4px 12px;
  border: 1px solid var(--aptk-xian);
  border-radius: 999px;
  color: var(--aptk-ci);
  white-space: nowrap;
}

.aptk-fenlei-biaoqian.aptk-xuanzhong {
  background-color: var(--aptk-zhu);
  border-color: var(--aptk-zhu);
  color: #fff;
  font-weight: 700;
}

.aptk-yingyong-liebiao {
  margin-top: 10px;
  display: grid;
  gap: 2px;
}

.aptk-yingyong-hang {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 6px;
  border-bottom: 1px solid var(--aptk-bei-shen);
}

.aptk-yingyong-hang:last-child {
  border-bottom: 0;
}

.aptk-yingyong-tubiao {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 20px;
}

.aptk-tubiao-lu {
  background-color: #e8f5e0;
  color: #2f9b04;
}

.aptk-tubiao-huang {
  background-color: #fdf3e0;
  color: #cf8a05;
}

.aptk-tubiao-lan {
  background-color: #e8f0fd;
  color: #2b6cd4;
}

.aptk-tubiao-hong {
  background-color: #fdeceb;
  color: #cf4b3e;
}

.aptk-tubiao-zi {
  background-color: #f2ecfd;
  color: #7247cb;
}

.aptk-yingyong-xinxi {
  flex: 1 1 auto;
  min-width: 0;
  display: grid;
  gap: 1px;
}

.aptk-yingyong-ming {
  font-size: 15px;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.aptk-yingyong-miaoshu {
  font-size: 12.5px;
  color: var(--aptk-hui);
}

.aptk-yingyong-fen {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 13px;
  font-weight: 700;
  color: var(--aptk-ci);
}

.aptk-yingyong-fen i {
  color: #e8a33d;
  font-size: 12px;
}

.aptk-yingyong-xin {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  color: var(--aptk-zhu-an);
  background-color: var(--aptk-zhu-dan);
  border: 1px solid var(--aptk-zhu-xian);
  border-radius: 5px;
  padding: 1px 6px;
}

.aptk-dibubiaoqian {
  display: flex;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--aptk-xian);
}

.aptk-dibubiaoqian-xiang {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 12px;
  color: var(--aptk-hui);
  padding: 4px 0;
}

.aptk-dibubiaoqian-xiang i {
  font-size: 19px;
}

.aptk-dibubiaoqian-xiang.aptk-xuanzhong {
  color: var(--aptk-zhu-an);
  font-weight: 700;
}

/* ============================================================
   通用区块与标题
   ============================================================ */

section[id] {
  scroll-margin-top: 76px;
}

.aptk-biaoti-qu {
  max-width: 720px;
  margin-bottom: 34px;
}

.aptk-zhubiaoti {
  font-size: 24px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 0;
}

.aptk-daoyu {
  margin-top: 12px;
  font-size: 15.5px;
  color: var(--aptk-ci);
}

.aptk-xiao-zhuti {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--aptk-mo);
}

/* ============================================================
   应用资源
   ============================================================ */

.aptk-ziyuan {
  padding: 76px 0;
  background-color: var(--aptk-bai);
}

.aptk-ziyuan-paiban {
  display: grid;
  grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.aptk-fenlei-suoyin {
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan);
  padding: 20px 22px 22px;
  background-color: var(--aptk-bei);
}

.aptk-fenlei-qingdan {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
  margin-top: 14px;
  counter-reset: aptk-fen;
}

.aptk-fenlei-qingdan li {
  counter-increment: aptk-fen;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 15px;
  padding: 7px 0;
  border-bottom: 1px solid var(--aptk-xian);
  color: var(--aptk-ci);
}

.aptk-fenlei-qingdan li::before {
  content: counter(aptk-fen, decimal-leading-zero);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--aptk-zhu);
  flex: 0 0 auto;
}

.aptk-fenlei-shuoming {
  margin-top: 16px;
  font-size: 14px;
  color: var(--aptk-ci);
  padding-top: 14px;
  border-top: 1px dashed var(--aptk-xian-shen);
}

.aptk-ziyuan-cengci {
  display: grid;
  gap: 26px;
}

.aptk-cengci-kuai {
  border-left: 2px solid var(--aptk-zhu-xian);
  padding: 2px 0 2px 20px;
}

.aptk-cengci-kuai p {
  margin-top: 8px;
  font-size: 15.5px;
  color: var(--aptk-ci);
}

/* ============================================================
   产品界面
   ============================================================ */

.aptk-jiemian {
  padding: 64px 0;
  background-color: var(--aptk-bei);
  border-top: 1px solid var(--aptk-xian);
  border-bottom: 1px solid var(--aptk-xian);
}

.aptk-jiemian-zhanlan {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.aptk-jiemian-kuai {
  display: flex;
  flex-direction: column;
}

.aptk-jiemian-ming {
  font-size: 17px;
  font-weight: 700;
  padding-bottom: 8px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--aptk-zhu);
  align-self: flex-start;
}

.aptk-jiemian-tu {
  margin: 0;
}

.aptk-shouji-kuang {
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan-da);
  background-color: var(--aptk-bai);
  padding: 6px;
  box-shadow: var(--aptk-zhexian);
}

.aptk-shouji-kuang img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 9px;
}

.aptk-jiemian-tu figcaption,
.aptk-taolun-tu figcaption {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--aptk-ci);
}

/* ============================================================
   核心能力
   ============================================================ */

.aptk-nengli {
  padding: 72px 0;
  background-color: var(--aptk-bai);
}

.aptk-nengli-qingdan {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 44px;
  counter-reset: aptk-neng;
}

.aptk-nengli-tiao {
  counter-increment: aptk-neng;
  padding: 20px 0 20px 44px;
  border-top: 1px solid var(--aptk-xian);
  position: relative;
}

.aptk-nengli-tiao::before {
  content: counter(aptk-neng, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 22px;
  font-size: 15px;
  font-weight: 800;
  color: var(--aptk-zhu);
  letter-spacing: 0;
}

.aptk-nengli-tiao p {
  margin-top: 7px;
  font-size: 15px;
  color: var(--aptk-ci);
}

/* ============================================================
   社区讨论
   ============================================================ */

.aptk-taolun {
  padding: 60px 0;
  background-color: var(--aptk-lu-bei-shen);
  border-top: 1px solid var(--aptk-xian);
  border-bottom: 1px solid var(--aptk-xian);
}

.aptk-taolun-paiban {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: 52px;
  align-items: center;
}

.aptk-taolun-duanluo {
  margin-top: 14px;
  font-size: 16px;
  color: var(--aptk-ci);
}

.aptk-taolun-yaodian {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.aptk-taolun-yaodian li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--aptk-mo);
  background-color: var(--aptk-bai);
  border: 1px solid var(--aptk-zhu-xian);
  border-radius: var(--aptk-yuan-xiao);
  padding: 11px 14px;
}

.aptk-taolun-yaodian i {
  color: var(--aptk-zhu);
  font-size: 17px;
  line-height: 1.6;
  flex: 0 0 auto;
}

.aptk-taolun-tu {
  margin: 0;
  max-width: 320px;
  justify-self: center;
}

/* ============================================================
   常见问题
   ============================================================ */

.aptk-wenda {
  padding: 68px 0;
  background-color: var(--aptk-bai);
}

.aptk-wenda-lie {
  border-top: 1px solid var(--aptk-xian);
}

.aptk-wenda-tiao {
  border-bottom: 1px solid var(--aptk-xian);
}

.aptk-wenda-wenti {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 2px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--aptk-mo);
}

.aptk-wenda-wenti::-webkit-details-marker {
  display: none;
}

.aptk-wenda-wenti::after {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-right: 2px solid var(--aptk-zhu);
  border-bottom: 2px solid var(--aptk-zhu);
  transform: rotate(45deg);
  flex: 0 0 auto;
  transition: transform 0.2s ease;
}

.aptk-wenda-tiao[open] .aptk-wenda-wenti::after {
  transform: rotate(225deg);
}

.aptk-wenda-tiao[open] .aptk-wenda-wenti {
  color: var(--aptk-zhu-an);
}

.aptk-wenda-daan {
  padding: 0 40px 20px 2px;
  font-size: 15px;
  color: var(--aptk-ci);
}

/* ============================================================
   用户反馈
   ============================================================ */

.aptk-fankui {
  padding: 76px 0;
  background-color: var(--aptk-bei);
  border-top: 1px solid var(--aptk-xian);
}

.aptk-fankui-lie {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.aptk-fankui-ka {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-color: var(--aptk-bai);
  border: 1px solid var(--aptk-xian);
  border-radius: var(--aptk-yuan);
  padding: 18px;
}

.aptk-fankui-tou {
  display: flex;
  align-items: center;
  gap: 10px;
}

.aptk-touxiang {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--aptk-zhu-dan);
  border: 1px solid var(--aptk-zhu-xian);
  color: var(--aptk-zhu-an);
  font-size: 14px;
  font-weight: 700;
}

.aptk-fankui-shenfen {
  flex: 1 1 auto;
  min-width: 0;
  display: grid;
}

.aptk-fankui-ming {
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
}

.aptk-fankui-shijian {
  font-size: 12px;
  color: var(--aptk-hui);
  line-height: 1.4;
}

.aptk-xingji {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 13px;
  font-weight: 700;
  color: var(--aptk-ci);
}

.aptk-xingji i {
  color: #e8a33d;
  font-size: 12px;
}

.aptk-fankui-neirong {
  font-size: 14.5px;
  color: var(--aptk-ci);
}

/* ============================================================
   最终行动区
   ============================================================ */

.aptk-xingdong {
  padding: 64px 0;
  background-color: var(--aptk-bai);
}

.aptk-xingdong-kuang {
  border: 1px solid var(--aptk-zhu-xian);
  border-radius: var(--aptk-yuan-da);
  background-color: var(--aptk-lu-bei);
  padding: 38px 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.aptk-xingdong-duanluo {
  font-size: 16px;
  color: var(--aptk-ci);
  max-width: 46em;
}

.aptk-xingdong-kuang .aptk-zhuanhuan-anniu {
  margin-top: 6px;
}

/* ============================================================
   页脚
   ============================================================ */

.aptk-yejiao {
  background-color: var(--aptk-mo);
  color: #cdd2c6;
  padding: 52px 0 26px;
}

.aptk-yejiao-paiban {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 40px;
}

.aptk-yejiao-pinpai img {
  display: block;
  width: 44px;
  height: 44px;
  border-radius: 11px;
}

.aptk-yejiao-jianjie {
  margin-top: 14px;
  font-size: 14.5px;
  color: #a9b0a0;
  max-width: 24em;
}

.aptk-yejiao-zhuti {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.aptk-yejiao-tishi {
  margin-top: 10px;
  font-size: 13.5px;
  color: #a9b0a0;
}

.aptk-yejiao-dipan {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #2c3125;
  font-size: 13px;
  color: #8f977f;
}

/* ============================================================
   返回顶部
   ============================================================ */

.aptk-huidingbu {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 20;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  background-color: var(--aptk-zhu);
  border: 0;
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(20, 23, 15, 0.18);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.aptk-huidingbu.aptk-xianshi {
  opacity: 1;
  visibility: visible;
}

.aptk-huidingbu:hover {
  background-color: var(--aptk-zhu-an);
}

/* ============================================================
   响应式
   ============================================================ */

/* 字号随视口递增：移动端 32/24，平板 38/28，桌面 44-52 / 30-34 */
@media (min-width: 640px) {
  .aptk-dabiaoti {
    font-size: 38px;
  }

  .aptk-zhubiaoti {
    font-size: 26px;
  }
}

@media (min-width: 900px) {
  .aptk-dabiaoti {
    font-size: 44px;
  }

  .aptk-zhubiaoti {
    font-size: 30px;
  }
}

@media (min-width: 1200px) {
  .aptk-dabiaoti {
    font-size: 52px;
  }

  .aptk-zhubiaoti {
    font-size: 34px;
  }
}

/* 桌面端（首屏恢复两栏布局）才展示二维码 */
@media (min-width: 1061px) {
  .aptk-saoma-qu {
    display: flex;
  }
}

@media (max-width: 1060px) {
  .aptk-daohang {
    display: none;
  }

  .aptk-yidong-caidan {
    display: block;
    margin-left: auto;
  }

  .aptk-yetou-kuan {
    gap: 14px;
  }

  .aptk-shouye-kuan {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .aptk-faxian-mianban {
    max-width: 452px;
  }

  .aptk-ziyuan-paiban {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .aptk-taolun-paiban {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .aptk-taolun-tu {
    justify-self: start;
  }

  .aptk-fankui-lie {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .aptk-yejiao-paiban {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }

  .aptk-nengli-qingdan {
    gap: 0 32px;
  }
}

@media (max-width: 720px) {
  .aptk-jiemian-zhanlan {
    grid-template-columns: minmax(0, 1fr);
  }

  .aptk-jiemian-kuai {
    max-width: 340px;
  }

  .aptk-nengli-qingdan {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .aptk-fankui-lie {
    grid-template-columns: minmax(0, 1fr);
  }

  .aptk-yejiao-paiban {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .aptk-xingdong-kuang {
    padding: 28px 22px;
  }
}

@media (max-width: 640px) {
  .aptk-kuan,
  .aptk-yetou-kuan {
    padding: 0 16px;
  }

  .aptk-yetou-kuan {
    padding: 10px 16px;
  }

  .aptk-pinpai-ming {
    font-size: 17px;
  }

  .aptk-xiazai-anniu {
    padding: 9px 14px;
    font-size: 14px;
  }

  .aptk-fubiaoti {
    font-size: 17px;
  }

  .aptk-shouye {
    padding: 36px 0 42px;
  }

  .aptk-ziyuan,
  .aptk-nengli,
  .aptk-fankui {
    padding: 48px 0;
  }

  .aptk-jiemian,
  .aptk-wenda,
  .aptk-xingdong {
    padding: 44px 0;
  }

  .aptk-taolun {
    padding: 42px 0;
  }

  .aptk-biaoti-qu {
    margin-bottom: 26px;
  }

  .aptk-fenlei-suoyin {
    padding: 16px 16px 18px;
  }

  .aptk-fenlei-qingdan {
    gap: 0 14px;
  }

  .aptk-cengci-kuai {
    padding-left: 15px;
  }

  .aptk-taolun-tu {
    max-width: 300px;
  }

  .aptk-wenda-wenti {
    font-size: 15.5px;
    padding: 15px 2px;
  }

  .aptk-wenda-daan {
    padding: 0 26px 18px 2px;
  }

  .aptk-fankui-ka {
    padding: 16px;
  }

  .aptk-huidingbu {
    right: 14px;
    bottom: 14px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}