/* retail.css - 零售金价盘（ls.xy9999.com.cn） · 酒红金主题，响应式：
   宽屏（电脑/投屏电视）→ 4 卡横排；窄屏（手机）→ 三列价格表。 */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #5a0e12;
  --bg-dark: #3a0709;
  --bg-card: #4a0b0e;
  --gold: #f4d07c;
  --gold2: #d4a84b;
  --red: #ff3333;
  --white: #ffffff;
  --border: #a02a2e;
  --border-light: #c94a4e;
  --text2: #e6c9a8;
  --text3: #c79a9c;
  --font: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --mono: "Consolas", "DIN Alternate", monospace;
}

html, body { height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--gold);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.r-wrap {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 顶部品牌区 ===== */
.r-head {
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 20px 16px 18px;
}
.r-logo {
  height: 62px;
  width: auto;
  display: inline-block;
  margin-bottom: 8px;
  border-radius: 6px;
  background: #fff;
  padding: 4px 10px;
}
.r-title {
  font-size: 22px;
  color: var(--gold);
  letter-spacing: 3px;
  font-weight: 700;
}
.r-sub {
  font-size: 12px;
  color: var(--text3);
  letter-spacing: 2px;
  margin-top: 4px;
  text-transform: uppercase;
}
.r-updated {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text2);
}
.r-updated b { color: var(--gold); font-family: var(--mono); font-weight: 700; }

/* ===== 标题 ===== */
.r-h2 {
  text-align: center;
  color: var(--gold);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 4px;
  margin: 26px 0 20px;
  position: relative;
}
.r-h2::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold2), transparent);
  margin: 10px auto 0;
  border-radius: 2px;
}

/* ===== 宽屏：4 卡横排 ===== */
.r-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding: 0 24px;
}
.r-card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-dark));
  border: 1px solid var(--gold2);
  border-radius: 12px;
  padding: 22px 12px 20px;
  text-align: center;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.35), inset 0 0 24px rgba(212, 168, 75, 0.08);
}
.r-card h3 {
  color: var(--gold);
  font-size: 22px;
  letter-spacing: 2px;
  margin-bottom: 18px;
  font-weight: 700;
}
.r-card .label {
  color: var(--text3);
  font-size: 12px;
  margin-bottom: 4px;
}
.r-card .val {
  font-family: var(--mono);
  font-size: 46px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
}
.r-card .val--buy { font-size: 40px; color: var(--text2); }
.r-card .unit {
  color: var(--text3);
  font-size: 12px;
  margin-top: 2px;
}
.r-card .sep { margin-top: 14px; }

/* ===== 窄屏：价格表（默认隐藏，窄屏显示）===== */
.r-tablewrap { display: none; padding: 0 14px; }
.r-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 8px;
  overflow: hidden;
}
.r-table th {
  background: var(--bg-dark);
  color: var(--gold);
  font-weight: 400;
  font-size: 14px;
  padding: 12px 6px;
  border: 1px solid var(--border);
}
.r-table td {
  padding: 16px 6px;
  text-align: center;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}
.r-table td.name {
  color: var(--gold);
  font-size: 15px;
  white-space: nowrap;
}
.r-table td .v {
  font-family: var(--mono);
  font-size: 27px;
  font-weight: 700;
  display: block;
}
.r-table td.sell .v { color: var(--red); }
.r-table td.buy .v { color: var(--text2); }
.r-table td .u {
  display: block;
  color: var(--text3);
  font-size: 11px;
  margin-top: 3px;
}

/* ===== 底部 ===== */
.r-foot {
  margin-top: 28px;
  padding: 18px 16px 26px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-dark);
}
.r-notice {
  color: var(--text3);
  font-size: 12px;
  margin-bottom: 16px;
  line-height: 1.6;
}
.r-foot-label {
  color: var(--gold);
  font-size: 17px;
  letter-spacing: 3px;
  margin-bottom: 6px;
}
.r-hotline {
  color: var(--gold);
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 3px;
  margin: 4px 0 10px;
}
.r-addr {
  color: var(--text2);
  font-size: 13px;
}

/* ===== 响应式：窄屏（手机竖屏）切表格 ===== */
@media (max-width: 820px) {
  .r-cards { display: none; }
  .r-tablewrap { display: block; }
  .r-h2 { font-size: 21px; margin: 18px 0 14px; }
  .r-head { padding: 16px 12px; }
  .r-logo { height: 54px; }
  .r-title { font-size: 19px; }
  .r-hotline { font-size: 28px; }
  .r-wrap { padding-bottom: 0; }
}

/* ===== 大屏 / 电视横屏（投屏）：铺满整屏 + 随视口放大 =====
   触发条件：宽度 ≥ 1100px 且为横屏（宽高比 ≥ 5:4）。
   字号全部用 vh 随屏幕高度等比放大，容器去掉 max-width 铺满，
   卡片区 flex:1 撑满剩余高度，远距离也看得清。 */
@media (min-width: 1100px) and (min-aspect-ratio: 5/4) {
  body { overflow-x: hidden; }
  .r-wrap {
    max-width: none;
    width: 100%;
    padding: 0 2vw;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }

  /* 顶部品牌区 */
  .r-head { padding: 1.5vh 16px 1.3vh; }
  .r-logo { height: clamp(52px, 5.4vh, 96px); margin-bottom: 0.8vh; }
  .r-title { font-size: clamp(26px, 2.8vh, 64px); letter-spacing: 0.4vw; }
  .r-sub { font-size: clamp(11px, 1.2vh, 22px); letter-spacing: 0.25vw; }
  .r-updated { font-size: clamp(12px, 1.5vh, 26px); margin-top: 0.8vh; }

  /* 主标题 */
  .r-h2 { font-size: clamp(24px, 4.4vh, 104px); letter-spacing: 0.6vw; margin: 1.4vh 0 1.1vh; }
  .r-h2::after { width: clamp(60px, 7vh, 150px); height: 0.35vh; margin-top: 0.8vh; }

  /* 4 卡横排：撑满整宽 + 撑满剩余高度 */
  .r-cards {
    flex: 1 1 auto;
    gap: clamp(14px, 1.6vw, 46px);
    padding: 0;
    align-items: stretch;
  }
  .r-card {
    padding: 2.2vh 1vw 2vh;
    border-radius: clamp(12px, 1.4vh, 26px);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .r-card h3 { font-size: clamp(22px, 3.4vh, 82px); letter-spacing: 0.3vw; margin-bottom: 1.6vh; }
  .r-card .label { font-size: clamp(12px, 1.5vh, 30px); margin-bottom: 0.5vh; }
  .r-card .val { font-size: clamp(44px, 8.6vh, 210px); }
  .r-card .val--buy { font-size: clamp(36px, 6.6vh, 165px); }
  .r-card .unit { font-size: clamp(11px, 1.4vh, 28px); }
  .r-card .sep { margin-top: 1.6vh; }

  /* 底部 */
  .r-foot { margin-top: 1.6vh; padding: 1.5vh 16px 2vh; }
  .r-notice { font-size: clamp(11px, 1.5vh, 28px); margin-bottom: 1.1vh; }
  .r-foot-label { font-size: clamp(16px, 2.2vh, 40px); letter-spacing: 0.3vw; }
  .r-hotline { font-size: clamp(32px, 5.2vh, 118px); letter-spacing: 0.4vw; margin: 0.4vh 0 1vh; }
  .r-addr { font-size: clamp(12px, 1.6vh, 30px); }
}