:root {
  --red: #e53935;
  --red-dark: #c62828;
  --orange: #ff6d00;
  --gold: #ffb300;
  --bg: #f7f7f7;
  --card: #ffffff;
  --text: #212121;
  --muted: #757575;
  --line: #eee;
}
* { box-sizing: border-box; margin: 0; padding: 0; }

/* ===== 顶部导航 ===== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(135deg, #17171b 0%, #2a2a33 100%);
  border-bottom: 2px solid var(--red);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 18px rgba(0,0,0,.22);
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-brand .brand-badge {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  border-radius: 9px;
  font-size: 15px;
  box-shadow: 0 2px 8px rgba(229,57,53,.45);
}
.nav-brand .brand-text {
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 1px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,.72);
  text-decoration: none;
  padding: 7px 12px;
  border-radius: 999px;
  white-space: nowrap;
  transition: all .2s ease;
}
.nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,.1);
  transform: translateY(-1px);
}
.nav-links a.cur {
  color: #fff;
  background: linear-gradient(135deg, var(--red) 0%, var(--red-dark) 100%);
  box-shadow: 0 3px 10px rgba(229,57,53,.4);
}

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  max-width: 640px;
  margin: 0 auto;
  padding-bottom: 72px;
}
.banner {
  background: linear-gradient(160deg, var(--red) 0%, var(--red-dark) 100%);
  color: #fff;
  padding: 36px 20px 30px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.banner::after {
  content: "包月锁位";
  position: absolute;
  right: -20px; bottom: -30px;
  font-size: 90px; font-weight: 900;
  color: rgba(255,255,255,0.08);
  transform: rotate(-12deg);
}
.banner .kicker {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  font-size: 12px; padding: 3px 12px;
  border-radius: 20px; margin-bottom: 10px;
  letter-spacing: 1px;
}
.banner .kicker.vip {
  background: var(--gold);
  color: #5d3a00;
  font-weight: 700;
}
.banner h1 { font-size: 26px; line-height: 1.4; margin-bottom: 8px; }
.banner .sub { font-size: 15px; opacity: 0.95; }
.banner .price-hook { margin-top: 16px; font-size: 14px; }
.banner .price-hook strong {
  font-size: 34px; color: var(--gold);
  text-shadow: 0 1px 4px rgba(0,0,0,0.25);
  margin: 0 4px;
}
section {
  background: var(--card);
  margin: 14px 12px;
  border-radius: 12px;
  padding: 22px 18px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.05);
}
section h2 { font-size: 19px; margin-bottom: 6px; }
section .h2-sub { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.red-bar {
  display: inline-block; width: 4px; height: 18px;
  background: var(--red); margin-right: 8px;
  vertical-align: -3px; border-radius: 2px;
}
/* ===== 算账表 ===== */
.calc-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.calc-table td {
  border: 1px solid var(--line);
  padding: 12px 10px;
  text-align: left;
}
.calc-table td.k { background: #fafafa; font-weight: 600; white-space: nowrap; }
.calc-table td.v { text-align: right; font-weight: 600; }
.calc-table tr.total td {
  background: #fff3e0;
  border-color: #f5d9b8;
  font-size: 16px;
}
.calc-table tr.total td.v { color: var(--red); font-weight: 900; font-size: 20px; }
.calc-table td.save { text-align: right; color: var(--red-dark); font-weight: 700; }
/* ===== 权益卡 ===== */
.perk-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.perk {
  background: #fff9f2;
  border: 1.5px solid #f5d9b8;
  border-radius: 10px;
  padding: 14px 12px;
  text-align: center;
}
.perk .p-icon { font-size: 22px; }
.perk .p-title { font-size: 14px; font-weight: 700; margin: 4px 0 2px; }
.perk .p-desc { font-size: 12px; color: var(--muted); line-height: 1.6; }
/* ===== 周运转时间线 ===== */
.timeline { list-style: none; }
.timeline li {
  display: flex; gap: 12px;
  padding: 12px 0; border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.timeline li:last-child { border-bottom: none; }
.timeline .t-day {
  flex-shrink: 0; width: 64px; height: 26px;
  background: #fff3e6; color: #b3541e;
  border-radius: 6px; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.timeline .t-act strong { color: var(--red-dark); }
/* ===== 报告示意 ===== */
.report-card {
  background: #fafafa;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  margin-top: 6px;
}
.report-card .rc-title {
  font-size: 14px; font-weight: 700;
  margin-bottom: 10px; color: var(--red-dark);
}
.report-card .rc-row {
  display: flex; justify-content: space-between;
  font-size: 13px; padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  color: #444;
}
.report-card .rc-row:last-child { border-bottom: none; }
.report-card .rc-row span:last-child { font-weight: 700; }
/* ===== 保障条 ===== */
.guarantee {
  background: linear-gradient(135deg, var(--orange) 0%, #e65100 100%);
  color: #fff; text-align: center;
}
.guarantee h2 { font-size: 20px; margin-bottom: 6px; }
.guarantee p { font-size: 14px; opacity: 0.95; line-height: 1.8; }
.guarantee strong { background: #fff; color: var(--orange); padding: 1px 8px; border-radius: 4px; }
/* ===== 联系 ===== */
#contact { text-align: center; }
#contact h2 { margin-bottom: 4px; }
#contact .contact-tip { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.wx-box {
  border: 2px dashed #ccc; border-radius: 12px;
  padding: 18px 16px; margin-bottom: 14px; color: var(--muted);
}
.wx-box .wx-img {
  width: 180px; height: 180px;
  display: block; margin: 0 auto 12px; border-radius: 8px;
}
.wx-box .wx-placeholder { font-size: 14px; line-height: 1.9; text-align: center; }
.wx-box .wx-placeholder em { font-style: normal; color: var(--red); font-weight: 700; }
.contact-rows { font-size: 14px; color: #444; line-height: 2; }
.contact-rows strong { color: var(--text); }
.float-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  max-width: 640px; margin: 0 auto;
  background: var(--red); color: #fff;
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  box-shadow: 0 -3px 12px rgba(0,0,0,0.15);
  z-index: 10;
}
.float-bar .fb-text { font-size: 14px; }
.float-bar .fb-text strong { display: block; font-size: 16px; }
.float-bar a {
  display: inline-block; background: #fff; color: var(--red);
  font-weight: 800; font-size: 15px;
  padding: 9px 22px; border-radius: 24px; text-decoration: none;
}

/* ===== 返回顶部浮动按钮 ===== */
.back-top {
  position: fixed;
  right: 16px;
  bottom: 72px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  border: none;
  box-shadow: 0 4px 14px rgba(229,57,53,.4);
  font-size: 14px;
  line-height: 46px;
  text-align: center;
  cursor: pointer;
  z-index: 20;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:active { background: var(--red-dark); }

/* ===== 转化打磨：Banner CTA ===== */
.banner-cta { margin-top: 18px; }
.banner-cta a {
  display: inline-block;
  background: #fff;
  color: var(--red);
  font-weight: 800;
  font-size: 15px;
  padding: 11px 28px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
}
/* ===== 转化打磨：联系区双按钮 ===== */
.cta-row { display: flex; gap: 10px; margin-bottom: 14px; }
.cta-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-radius: 12px;
  padding: 13px 8px;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}
.cta-tel { background: linear-gradient(135deg, var(--red), var(--red-dark)); color: #fff; box-shadow: 0 4px 14px rgba(229,57,53,.35); }
.cta-wx { background: #09bb07; color: #fff; box-shadow: 0 4px 14px rgba(9,187,7,.3); }
.price-link {
  display: inline-block;
  border: 1.5px solid var(--red);
  color: var(--red);
  border-radius: 999px;
  padding: 9px 22px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  background: #fff;
}
.copy-btn {
  border: 1px solid var(--red);
  color: var(--red);
  background: #fff;
  font-size: 12px;
  border-radius: 6px;
  padding: 1px 10px;
  margin-left: 6px;
  cursor: pointer;
}
.copy-ok { color: #09bb07; border-color: #09bb07; }
/* ===== 转化打磨：包月案例 ===== */
.month-case { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 6px; }
.month-case img { width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: 8px; display: block; }
/* ===== 转化打磨：客户反馈卡 ===== */
.feedback {
  background: #fffaf0;
  border: 1.5px solid #f5d9b8;
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 16px;
  text-align: left;
}
.feedback .fb-badge {
  display: inline-block;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 20px;
  margin-bottom: 8px;
}
.feedback .fb-quote { font-size: 14px; line-height: 1.8; color: #444; }
.feedback .fb-quote::before { content: "\201C"; color: var(--red); font-size: 20px; font-weight: 900; }
.feedback .fb-quote::after { content: "\201D"; color: var(--red); font-size: 20px; font-weight: 900; }
.feedback .fb-who { font-size: 12px; color: var(--muted); margin-top: 6px; text-align: right; }