:root {
  --red: #E53935;
  --red-dark: #B71C1C;
  --orange: #FF6D00;
  --gold: #B8860B;
  --gold-light: #FFF6DC;
  --gold-dark: #8B6914;
  --text: #1A1A1A;
  --muted: #757575;
  --bg: #FFFAF0;
  --card: #FFFFFF;
  --green: #2E7D32;
  --pink: #FE2C55;
  --cyan: #25F4EE;
}
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
body { font-family: "PingFang SC","Microsoft YaHei",sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; font-size: 16px; }
.wrap { max-width: 480px; margin: 0 auto; padding: 0 0 90px; }

.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(--gold);
  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(--gold) 0%, var(--gold-dark) 100%);
  border-radius: 9px;
  font-size: 15px;
  box-shadow: 0 2px 8px rgba(184,134,11,.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(--gold) 0%, var(--gold-dark) 100%);
  box-shadow: 0 3px 10px rgba(184,134,11,.4);
}

/* Banner */
.banner { background: linear-gradient(135deg, #2C2C2C 0%, var(--gold-dark) 100%); color: #fff; padding: 28px 20px 32px; text-align: center; position: relative; overflow: hidden; }
.banner::after { content: "深度服务 · 老客户专享"; position: absolute; top: 14px; right: -34px; background: var(--gold); color: #fff; font-size: 10px; padding: 2px 30px; transform: rotate(45deg); font-weight: 700; letter-spacing: 1px; }
.banner h1 { font-size: 23px; margin-bottom: 6px; }
.banner h1 em { font-style: normal; background: var(--gold); color: #fff; padding: 0 6px; border-radius: 4px; font-size: 18px; }
.banner .price { font-size: 14px; opacity: .95; }
.banner .price b { font-size: 32px; color: #FFD54F; }
.banner .tag-row { font-size: 12px; opacity: .85; margin-top: 6px; letter-spacing: 1px; }

/* 痛点 */
.pains { padding: 18px 16px 8px; }
.pain-title { font-size: 17px; font-weight: 800; color: var(--gold-dark); margin-bottom: 12px; text-align: center; }
.pain { background: var(--card); border: 1px solid #E8C766; border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; display: flex; gap: 12px; align-items: flex-start; }
.pain .emo { font-size: 24px; flex-shrink: 0; line-height: 1.2; }
.pain .pct { font-size: 14px; font-weight: 700; margin-bottom: 2px; color: var(--gold-dark); }
.pain .pcd { font-size: 12.5px; color: var(--muted); }

/* section */
.section { background: var(--card); margin: 14px 12px; border-radius: 14px; padding: 20px 16px; box-shadow: 0 1px 3px rgba(0,0,0,.04); }
.section h2 { font-size: 18px; font-weight: 800; color: var(--gold-dark); margin-bottom: 14px; text-align: center; }
.section .h2-sub { font-size: 12.5px; color: var(--muted); text-align: center; margin: -10px 0 14px; }

/* 分工 */
.divide { display: grid; grid-template-columns: 1fr auto 1fr; gap: 8px; align-items: center; margin-top: 8px; }
.di { border-radius: 12px; padding: 12px; text-align: center; }
.di.you { background: #F5F5F5; }
.di.us { background: linear-gradient(180deg, var(--gold-light), #fff); border: 1.5px solid var(--gold); }
.di h4 { font-size: 13px; margin-bottom: 6px; }
.di.you h4 { color: var(--muted); }
.di.us h4 { color: var(--gold-dark); }
.di p { font-size: 12px; color: var(--text); }
.di .big { font-size: 24px; margin-bottom: 4px; }
.di .arrow-big { font-size: 24px; color: var(--gold); font-weight: 800; }

/* 抖音主页 mockup */
.dy-mock { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 12px rgba(0,0,0,.08); margin-top: 8px; }
.dy-head { display: flex; align-items: center; gap: 12px; padding: 14px 14px 10px; }
.dy-avatar { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--pink), var(--cyan)); padding: 2px; flex-shrink: 0; }
.dy-avatar-inner { width: 100%; height: 100%; border-radius: 50%; background: #FFE; border: 2px solid #fff; display: flex; align-items: center; justify-content: center; font-size: 22px; }
.dy-info { flex: 1; }
.dy-name { font-size: 15px; font-weight: 700; margin-bottom: 2px; }
.dy-id { font-size: 11px; color: var(--muted); }
.dy-btn { background: var(--pink); color: #fff; font-size: 12px; padding: 6px 16px; border-radius: 6px; font-weight: 700; }
.dy-bio { padding: 0 14px 12px; font-size: 12.5px; color: #444; line-height: 1.5; }
.dy-stats { display: flex; padding: 8px 14px; border-top: 1px solid #F0F0F0; border-bottom: 1px solid #F0F0F0; }
.dy-stat { flex: 1; text-align: center; }
.dy-stat .n { font-size: 16px; font-weight: 700; }
.dy-stat .l { font-size: 11px; color: var(--muted); }
.dy-tabs { display: flex; font-size: 12px; color: var(--muted); }
.dy-tabs div { flex: 1; text-align: center; padding: 10px 0; }
.dy-tabs .on { color: #000; font-weight: 700; border-bottom: 2px solid #000; }
.dy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; padding: 2px; }
.dy-grid img { width: 100%; aspect-ratio: 3/4; object-fit: cover; display: block; }

/* 月运转时间线 */
.month-tl { margin-top: 6px; }
.mt-row { display: flex; gap: 12px; padding: 8px 0; border-bottom: 1px dashed #E0E0E0; align-items: flex-start; }
.mt-row:last-child { border-bottom: none; }
.mt-day { background: var(--gold); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 6px; flex-shrink: 0; min-width: 50px; text-align: center; }
.mt-row .what { font-size: 13px; }

/* 数据周报 mockup */
.report { background: #FAFAFA; border-radius: 12px; padding: 14px; margin-top: 8px; border: 1px dashed #D0D0D0; }
.report .rtitle { font-size: 14px; font-weight: 700; color: var(--gold-dark); margin-bottom: 10px; text-align: center; }
.report-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.metric { background: #fff; border-radius: 8px; padding: 10px; text-align: center; }
.metric .v { font-size: 22px; font-weight: 800; color: var(--text); }
.metric .v.up { color: var(--green); }
.metric .l { font-size: 11px; color: var(--muted); margin-top: 2px; }
.report-note { font-size: 11.5px; color: var(--muted); margin-top: 10px; text-align: center; }

/* 定价 */
.plans { display: grid; gap: 10px; }
.plan { border: 1.5px solid #EEE; border-radius: 12px; padding: 14px 14px 12px; position: relative; }
.plan.best { border-color: var(--gold); background: linear-gradient(180deg, var(--gold-light) 0%, #fff 60%); }
.plan .tag-hot { position: absolute; top: -10px; right: 12px; background: var(--gold); color: #fff; font-size: 11px; padding: 2px 10px; border-radius: 999px; font-weight: 700; }
.plan .pn { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.plan .pp { font-size: 28px; color: var(--gold-dark); font-weight: 800; }
.plan .pp small { font-size: 13px; color: var(--muted); font-weight: 400; margin-left: 4px; }
.plan ul { list-style: none; margin-top: 6px; }
.plan li { font-size: 13px; color: #444; padding: 2px 0 2px 18px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 2px; color: var(--green); font-weight: 800; }
.plan .old-price { font-size: 12px; color: var(--muted); text-decoration: line-through; }

/* 保障 */
.guarantee { background: var(--gold-light); border-radius: 12px; padding: 14px 16px; }
.guarantee h3 { font-size: 15px; color: var(--gold-dark); margin-bottom: 8px; text-align: center; }
.guarantee ul { list-style: none; }
.guarantee li { font-size: 13px; padding: 4px 0 4px 20px; position: relative; color: #5D4037; }
.guarantee li::before { content: "🛡"; position: absolute; left: 0; }

/* 稀缺声明 */
.scarce { background: #FFF8E1; border: 1px dashed var(--gold); border-radius: 10px; padding: 12px 14px; font-size: 13px; color: #5D4037; margin-top: 12px; }
.scarce b { color: var(--gold-dark); }

/* 小字 */
.small { font-size: 12px; color: var(--muted); line-height: 1.8; background: #F5F5F5; border-radius: 8px; padding: 12px 14px; margin-top: 12px; }

/* 衔接 */
.cross { background: #FFF6EE; border: 1px solid #FFD9B8; border-radius: 12px; padding: 14px 16px; }
.cross h3 { font-size: 15px; color: var(--orange); margin-bottom: 8px; }
.cross p { font-size: 13px; color: #5D4037; margin-bottom: 6px; }
.cross a { color: var(--orange); text-decoration: none; font-weight: 700; display: inline-block; margin-top: 2px; }

/* 联系区 */
.contact { background: var(--card); margin: 14px 12px; border-radius: 14px; padding: 20px 16px; text-align: center; box-shadow: 0 1px 3px rgba(0,0,0,.04); }
.contact h2 { font-size: 18px; font-weight: 800; margin-bottom: 12px; }
.wx-box { background: #FAFAFA; border-radius: 10px; padding: 14px; margin-bottom: 12px; }
.wx-box img.wx-img { width: 140px; height: 140px; object-fit: contain; margin-bottom: 8px; background: #fff; border: 4px solid #fff; box-shadow: 0 1px 3px rgba(0,0,0,.08); padding: 4px; border-radius: 6px; }
.wx-box .info { font-size: 13.5px; line-height: 1.9; }
.contact-rows { font-size: 13.5px; line-height: 2; }
.contact-rows strong { color: var(--gold-dark); }

.float-cta { position: fixed; bottom: 12px; left: 0; right: 0; max-width: 480px; margin: 0 auto; padding: 0 12px; z-index: 10; }
.float-cta a { display: block; text-align: center; background: linear-gradient(135deg, var(--gold-dark), var(--gold)); color: #fff; text-decoration: none; padding: 14px 20px; border-radius: 999px; font-size: 16px; font-weight: 800; box-shadow: 0 6px 20px rgba(184,134,11,.4); }

/* ===== 返回顶部浮动按钮 ===== */
.back-top {
  position: fixed;
  right: 16px;
  bottom: 64px;
  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(--gold-dark);
  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(--gold-dark), var(--gold)); color: #fff; box-shadow: 0 4px 14px rgba(184,134,11,.4); }
.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(--gold-dark);
  color: var(--gold-dark);
  border-radius: 999px;
  padding: 9px 22px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  background: #fff;
}
.copy-btn {
  border: 1px solid var(--gold-dark);
  color: var(--gold-dark);
  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：客户反馈卡 ===== */
.feedback {
  background: #fffaf0;
  border: 1.5px solid #ecd9a8;
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 16px;
  text-align: left;
}
.feedback .fb-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  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(--gold-dark); font-size: 20px; font-weight: 900; }
.feedback .fb-quote::after { content: "\201D"; color: var(--gold-dark); font-size: 20px; font-weight: 900; }
.feedback .fb-who { font-size: 12px; color: var(--muted); margin-top: 6px; text-align: right; }