/* ============================================================
   H5 兑换码查询页 · 简约高端视觉规范
   色彩体系（主色 3 种）：
     墨蓝黑 #10182b（品牌主色 / 头部 / 主按钮）
     香槟金 #c8a26a（点缀强调 / 金额 / Logo）
     暖白   #f7f6f3（页面背景）
   功能色（仅状态语义）：绿 / 灰 / 红 / 微信绿
   ============================================================ */
:root {
  --ink: #10182b;
  --ink-2: #1c2742;
  --ink-3: #2a3550;
  --gold: #c8a26a;
  --gold-deep: #a9834e;
  --paper: #f7f6f3;
  --card: #ffffff;
  --line: #e8e5de;
  --line-2: #d9d5cc;

  --text-1: #1a2233;
  --text-2: #5c6472;
  --text-3: #9aa0ab;

  --ok: #2e9e6b;
  --ok-bg: #eaf6f0;
  --used: #8a94a6;
  --used-bg: #f1f3f6;
  --exp: #cf4444;
  --exp-bg: #fbeeec;
  --wechat: #07c160;

  --r-card: 16px;
  --r-ctl: 12px;
  --sh-card: 0 8px 32px rgba(16, 24, 43, .08);
  --sh-soft: 0 2px 10px rgba(16, 24, 43, .05);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body { overflow-x: hidden; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--text-1);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

.hidden { display: none !important; }

/* ---------- 头部品牌区（深色） ---------- */
.hero {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  padding: 52px 24px 108px;
  text-align: center;
  color: #fff;
}
.logo {
  width: 56px; height: 56px; line-height: 56px;
  margin: 0 auto 18px;
  border-radius: 14px;
  background: linear-gradient(140deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: #fff;
  font-size: 26px; font-weight: 700;
  letter-spacing: 0;
  box-shadow: 0 8px 24px rgba(169, 131, 78, .38);
}
.hero h1 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 4px;
  margin-bottom: 10px;
}
.hero .sub {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, .62);
}

/* ---------- 内容容器（卡片上浮叠压头部） ---------- */
.content {
  max-width: 460px;
  margin: -72px auto 0;
  padding: 0 20px 56px;
}

/* ---------- 卡片通用 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: 28px 24px;
  box-shadow: var(--sh-card);
  margin-bottom: 16px;
}

/* ---------- 查询卡片 ---------- */
.input-row input {
  width: 100%;
  height: 52px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-ctl);
  padding: 0 16px;
  font-size: 16px;
  letter-spacing: 1px;
  color: var(--text-1);
  background: #fcfbf9;
  outline: none;
  text-transform: uppercase;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.input-row input::placeholder {
  color: var(--text-3);
  letter-spacing: .5px;
  text-transform: none;
  font-size: 15px;
}
.input-row input:focus {
  border-color: var(--gold);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(200, 162, 106, .16);
}

.btn-query {
  width: 100%;
  height: 52px;
  margin-top: 16px;
  border: none;
  border-radius: var(--r-ctl);
  background: var(--ink);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 8px;
  text-indent: 8px; /* 抵消字间距造成的视觉偏移 */
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(16, 24, 43, .22);
  transition: background .2s, transform .1s, box-shadow .2s;
}
.btn-query:hover { background: var(--ink-3); }
.btn-query:active { transform: translateY(1px); box-shadow: 0 3px 10px rgba(16, 24, 43, .2); }
.btn-query:disabled {
  background: var(--ink-3);
  opacity: .75;
  cursor: not-allowed;
  letter-spacing: 4px;
  text-indent: 4px;
}
.btn-query:disabled::before {
  content: '';
  display: inline-block;
  width: 15px; height: 15px;
  margin-right: 10px;
  border: 2px solid rgba(255, 255, 255, .35);
  border-top-color: #fff;
  border-radius: 50%;
  vertical-align: -2px;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.tip {
  margin-top: 14px;
  text-align: center;
  font-size: 12px;
  letter-spacing: .5px;
  color: var(--text-3);
}

/* ---------- 查询结果 ---------- */
.result {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-top: 32px;
  animation: fadeUp .4s cubic-bezier(.2, .8, .2, 1) both;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.result::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--used);
}
.result[data-status="unused"]::before { background: var(--ok); }
.result[data-status="used"]::before { background: var(--used); }
.result[data-status="expired"]::before { background: var(--exp); }

.result-icon {
  width: 64px; height: 64px; line-height: 64px;
  margin: 0 auto 14px;
  border-radius: 50%;
  font-size: 30px;
  background: var(--used-bg);
  animation: pop .38s cubic-bezier(.2, 1.4, .4, 1) both;
}
@keyframes pop { from { transform: scale(.65); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.result[data-status="unused"] .result-icon { background: var(--ok-bg); }
.result[data-status="used"] .result-icon { background: var(--used-bg); filter: grayscale(1); opacity: .85; }
.result[data-status="expired"] .result-icon { background: var(--exp-bg); }

.result-status {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 20px;
}
.result-status.unused { color: var(--ok); }
.result-status.used { color: var(--used); }
.result-status.expired { color: var(--exp); }

.result-info {
  background: #faf9f6;
  border: 1px solid var(--line);
  border-radius: var(--r-ctl);
  padding: 4px 18px;
  text-align: left;
}
.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.5;
}
.info-row:last-child { border-bottom: none; }
.info-row .label { color: var(--text-3); flex-shrink: 0; letter-spacing: .5px; }
.info-row .value {
  font-weight: 600;
  color: var(--text-1);
  text-align: right;
  word-break: break-all;
}
.info-row .value.amount {
  color: var(--gold-deep);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .5px;
}

.result-note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-2);
}

/* ---------- 自助核销 ---------- */
.btn-self {
  display: block;
  width: 100%;
  margin-top: 18px;
  padding: 14px 0;
  border: none;
  border-radius: var(--r-ctl);
  background: var(--ink);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 3px;
  cursor: pointer;
  box-shadow: 0 5px 16px rgba(16, 24, 43, .2);
  transition: background .2s, transform .1s;
}
.btn-self:hover { background: var(--ink-3); }
.btn-self:active { transform: translateY(1px); }
.btn-self:disabled { opacity: .6; cursor: not-allowed; }
.self-tip {
  margin: 10px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
}

/* ---------- 客服微信二维码 ---------- */
.qr-box {
  margin-top: 20px;
  padding: 18px 16px;
  text-align: center;
  background: #faf9f6;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-ctl);
  animation: fadeUp .4s cubic-bezier(.2, .8, .2, 1) both;
}
.qr-img {
  width: 168px; height: 168px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px;
}
.qr-tip {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-2);
}
.qr-tip::before { content: '👆 '; }

/* ---------- 错误提示 ---------- */
.error {
  text-align: center;
  color: var(--exp);
  font-size: 14px;
  line-height: 1.8;
  padding: 32px 24px;
  animation: fadeUp .36s cubic-bezier(.2, .8, .2, 1) both;
}
.error-icon {
  width: 48px; height: 48px; line-height: 48px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--exp-bg);
  color: var(--exp);
  font-size: 24px;
  font-weight: 700;
  animation: shake .45s ease;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); } 40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); } 80% { transform: translateX(3px); }
}

/* ---------- 页脚客服入口 ---------- */
.footer {
  margin-top: 8px;
  text-align: center;
}
.foot-customer-service {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 10px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-1);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-decoration: none;
  box-shadow: var(--sh-soft);
  transition: border-color .2s, box-shadow .2s, transform .2s, color .2s;
}
.foot-customer-service:hover {
  border-color: var(--wechat);
  color: var(--wechat);
  box-shadow: 0 4px 16px rgba(7, 193, 96, .16);
  transform: translateY(-2px);
}
.foot-customer-service:active { transform: translateY(0); }
.wechat-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  display: block;
}
.foot-copy {
  margin-top: 18px;
  font-size: 11px;
  letter-spacing: .5px;
  color: var(--text-3);
}

/* ---------- 响应式适配 ---------- */
@media (max-width: 380px) {
  .hero { padding: 40px 20px 92px; }
  .hero h1 { font-size: 20px; letter-spacing: 3px; }
  .content { padding: 0 16px 44px; margin-top: -64px; }
  .card { padding: 24px 18px; }
  .input-row input { height: 50px; font-size: 15px; }
  .btn-query { height: 50px; letter-spacing: 6px; text-indent: 6px; }
  .info-row { font-size: 13px; }
  .info-row .value.amount { font-size: 16px; }
}

@media (min-width: 768px) {
  .hero { padding: 72px 24px 132px; }
  .hero h1 { font-size: 26px; letter-spacing: 6px; }
  .hero .sub { font-size: 14px; }
  .logo { width: 64px; height: 64px; line-height: 64px; font-size: 30px; }
  .content { max-width: 500px; margin-top: -88px; padding-bottom: 72px; }
  .card { padding: 34px 30px; }
}

/* 触控优化：保证可点击区域 ≥ 44px */
@media (pointer: coarse) {
  .foot-customer-service { min-height: 48px; }
  .btn-query, .btn-self { min-height: 50px; }
}