:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface2: #fafafa;
  --ink: #111827;
  --muted: #6b7280;
  --hair: #e5e7eb;
  --hair-strong: #d1d5db;
  --accent: #111827;
  --accent-soft: #f3f4f6;
  --accent-text: #ffffff;
  --ok: #059669;
  --bad: #dc2626;
  --warn: #d97706;
  --shadow: 0 1px 3px rgba(17, 24, 39, 0.06);
  --shadow-md: 0 4px 16px rgba(17, 24, 39, 0.08);
  --r: 12px;
  --ring: 0 0 0 3px rgba(17, 24, 39, 0.08);
  --shopPad: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  background: var(--bg);
}

.page {
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 24px 16px calc(24px + env(safe-area-inset-bottom));
}

.card {
  width: min(400px, 92vw);
  border-radius: var(--r);
  background: var(--surface);
  border: 1px solid var(--hair);
  box-shadow: var(--shadow-md);
  padding: 24px 20px 20px;
}

.head {
  padding: 0 0 16px;
}

.badge {
  width: 100%;
  height: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.coin,
.gem {
  display: none;
}

.seal {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--hair);
  color: var(--muted);
}

.title {
  margin: 12px 0 8px;
  display: grid;
  gap: 4px;
  line-height: 1.2;
}

.titleTop {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: var(--muted);
}

.titleMain {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--ink);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.form {
  display: grid;
  gap: 14px;
  padding-top: 4px;
}

.field {
  display: grid;
  gap: 6px;
}

.label {
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
}

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  color: var(--ink);
  outline: none;
  font-size: 16px;
}

.input::placeholder {
  color: #9ca3af;
}

.input:focus {
  border-color: var(--ink);
  box-shadow: var(--ring);
}

.ghost {
  height: 44px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
}

.captcha {
  height: 44px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px dashed var(--hair-strong);
  background: var(--surface2);
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.captchaCode {
  font-family: ui-monospace, monospace;
  font-size: 16px;
  letter-spacing: 2px;
  padding: 4px 8px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--ink);
}

.captchaHint {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.msg {
  margin: 0;
  min-height: 18px;
  font-size: 13px;
  color: var(--muted);
}

.msg.ok {
  color: var(--ok);
}

.msg.bad {
  color: var(--bad);
}

.msg.warn {
  color: var(--warn);
}

.primary {
  margin-top: 2px;
  height: 48px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.primary::after {
  display: none;
}

.primary:active {
  opacity: 0.88;
}

.primary[disabled] {
  opacity: 0.45;
}

.foot {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 16px;
  color: var(--muted);
  font-size: 11px;
}

.line {
  height: 1px;
  flex: 1;
  background: var(--hair);
}

.sig {
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--hair);
  background: var(--surface2);
}

/* ── Shop ── */

.shop {
  min-height: 100svh;
  max-width: 480px;
  margin: 0 auto;
  padding: 12px 12px calc(16px + env(safe-area-inset-bottom));
  display: grid;
  gap: 12px;
  align-content: start;
}

.shop::before {
  display: none;
}

.shopTop {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--r);
  background: var(--surface);
  border: 1px solid var(--hair);
  box-shadow: var(--shadow);
}

.shopTopLeft {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.shopUser,
.shopBalance {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
}

.shopUserTag,
.shopBalanceTag {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  padding: 0;
  border-radius: 0;
  background: none;
}

.shopUserName {
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 34vw;
  color: var(--ink);
}

.shopBalanceNum {
  font-family: ui-monospace, monospace;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}

.shopBalanceNum::before {
  content: none;
}

.shopLogout {
  height: 36px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.shopTabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 4px;
  border-radius: var(--r);
  background: var(--surface);
  border: 1px solid var(--hair);
}

.shopTab {
  flex: 1 1 auto;
  min-width: 72px;
  height: 40px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
}

.shopTab.isActive {
  background: var(--accent);
  color: var(--accent-text);
  box-shadow: none;
}

.shopBody {
  display: grid;
  gap: 12px;
}

.shopPanel {
  display: none;
}

.shopPanel.isActive {
  display: grid;
  gap: 12px;
}

.scrollFrame {
  border-radius: var(--r);
  border: 1px solid var(--hair);
  background: var(--surface);
  overflow: auto;
  max-height: min(42svh, 340px);
  -webkit-overflow-scrolling: touch;
  padding: 8px;
}

.panelHead {
  padding: 0 2px;
}

.panelTitle {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.2px;
  color: var(--ink);
}

.panelTitle::before {
  content: none;
}

.panelSub {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.coinGrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 0;
}

.cardTile {
  min-height: 64px;
  border-radius: 10px;
  border: 1px solid var(--hair);
  background: var(--surface2);
  display: grid;
  place-items: center;
  position: relative;
  color: var(--ink);
  box-shadow: none;
}

.cardTile.isActive {
  border-color: var(--ink);
  background: var(--surface);
  box-shadow: var(--ring);
}

.tileNum {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.tilePrefix {
  display: inline-flex;
  align-items: center;
  height: 18px;
  padding: 0 6px;
  border-radius: 4px;
  border: 1px solid var(--hair);
  background: var(--surface);
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
}

.tileValue {
  font-family: ui-monospace, monospace;
  font-weight: 600;
  font-size: 20px;
  color: var(--ink);
}

.tileSub {
  position: absolute;
  bottom: 6px;
  left: 8px;
  font-size: 11px;
  color: var(--muted);
}

.payBox,
.detailBox {
  border-radius: var(--r);
  border: 1px solid var(--hair);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 14px;
  display: grid;
  gap: 12px;
}

.payHead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.payTitle {
  font-weight: 600;
  font-size: 14px;
}

.payTip {
  color: var(--muted);
  font-size: 12px;
}

.payRow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.payChip {
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--hair-strong);
  background: var(--surface2);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 500;
  font-size: 14px;
}

.payChip.isActive {
  border-color: var(--ink);
  background: var(--surface);
  box-shadow: var(--ring);
}

.payIcon {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.payA {
  background: #1677ff;
}

.payW {
  background: #07c160;
}

.shopPrimary {
  height: 48px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0;
  box-shadow: none;
}

.shopSecondary {
  height: 48px;
  border-radius: 10px;
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
}

.shopMsg {
  margin: 0;
  min-height: 18px;
  font-size: 13px;
  color: var(--muted);
}

.shopMsg.ok {
  color: var(--ok);
}

.shopMsg.bad {
  color: var(--bad);
}

.shopMsg.warn {
  color: var(--warn);
}

.itemGrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 0;
}

.itemCard {
  min-height: 72px;
  border-radius: 10px;
  border: 1px solid var(--hair);
  background: var(--surface2);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 10px 6px;
  color: var(--ink);
}

.itemCard.isActive {
  border-color: var(--ink);
  background: var(--surface);
  box-shadow: var(--ring);
}

.itemName {
  font-weight: 600;
  font-size: 13px;
  line-height: 1.25;
}

.itemTag {
  margin-top: 4px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0;
}

.detailName {
  font-weight: 600;
  font-size: 16px;
}

.detailDesc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.detailMeta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.metaChip {
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid var(--hair);
  background: var(--surface2);
  font-size: 12px;
  color: var(--muted);
}

.detailOps {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.stepper {
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  overflow: hidden;
}

.stepBtn {
  border: 0;
  background: var(--surface2);
  color: var(--ink);
  font-size: 18px;
  font-weight: 500;
}

.stepInput {
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  text-align: center;
  outline: none;
}

.subTabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
}

.subTab {
  flex: 1 1 auto;
  min-width: 72px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--hair);
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.subTab.isActive {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--accent-soft);
}

.hintBox {
  border-radius: 10px;
  border: none;
  background: var(--surface2);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  padding: 10px 12px;
}

.rewardList {
  display: grid;
  gap: 8px;
}

.rewardRow {
  border-radius: 10px;
  border: 1px solid var(--hair);
  background: var(--surface);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.rewardTitle {
  font-weight: 600;
  font-size: 14px;
  color: var(--ink);
}

.rewardSub {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.rewardBtn {
  height: 32px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
  flex-shrink: 0;
}

.modalOverlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px 14px;
  background: rgba(17, 24, 39, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
}

.modalOverlay[hidden] {
  display: none !important;
}

.modal {
  width: min(400px, 92vw);
  border-radius: var(--r);
  border: 1px solid var(--hair);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  padding: 20px;
  display: grid;
  gap: 12px;
}

.modalTitle {
  font-weight: 600;
  font-size: 17px;
}

.modalBody {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-line;
}

.modalFoot {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.modalGhost,
.modalPrimary {
  height: 44px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
}

.modalGhost {
  border: 1px solid var(--hair-strong);
  background: var(--surface);
  color: var(--ink);
}

.modalPrimary {
  border: none;
  background: var(--accent);
  color: var(--accent-text);
}

.modalX {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--hair);
  background: var(--surface2);
  color: var(--muted);
}

.link {
  border: none;
  background: transparent;
  color: var(--muted);
  text-decoration: underline;
}

@media (max-width: 420px) {
  .itemGrid {
    grid-template-columns: repeat(3, 1fr);
  }

  .detailOps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 360px) {
  .titleMain {
    font-size: 24px;
  }

  .coinGrid,
  .itemGrid {
    grid-template-columns: repeat(2, 1fr);
  }

  .row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 320px) {
  .shopTab {
    min-width: calc(50% - 6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .primary::after {
    animation: none;
  }
}