: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; /* 给底部悬浮栏留空间 */
}

/* ===== 顶部 Banner ===== */
.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: "当天交图";
  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 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;
}

/* ===== 通用 Section ===== */
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;
}

/* ===== 痛点 ===== */
.pain-list {
  list-style: none;
}
.pain-list li {
  padding: 10px 0 10px 30px;
  position: relative;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
}
.pain-list li:last-child { border-bottom: none; }
.pain-list li::before {
  content: "✗";
  position: absolute;
  left: 2px;
  color: var(--red);
  font-weight: 900;
}
.pain-list li strong { color: var(--red-dark); }

/* ===== 效果展示 ===== */
.flow-label {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  margin: 10px 0 6px;
}
.flow-label strong { color: var(--text); }
.mat img {
  width: 100%;
  border-radius: 10px;
  display: block;
  border: 2px solid #ddd;
}
.arrow-down {
  text-align: center;
  font-size: 26px;
  color: var(--red);
  margin: 8px 0;
  font-weight: 900;
}
.mat .mat-tag {
  position: relative;
}
.mat .mat-tag::after {
  content: "↑ 你发来的图（微信里的实拍）";
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 5px;
}
.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.scene-grid figure.main-fig { grid-column: 1 / -1; }
.scene-grid figure.main-fig img { height: auto; }
.scene-grid figure {
  position: relative;
}
.scene-grid img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}
.scene-grid figcaption {
  position: absolute;
  left: 6px;
  bottom: 6px;
  right: 6px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 5px;
}

/* ===== 对比表 ===== */
.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.compare th {
  background: #f0f0f0;
  padding: 10px 8px;
  border: 1px solid var(--line);
}
.compare th.them { background: #f5f5f5; color: var(--muted); }
.compare th.us { background: var(--red); color: #fff; border-color: var(--red-dark); }
.compare td {
  border: 1px solid var(--line);
  padding: 10px 8px;
  text-align: center;
}
.compare td.us {
  background: #fff8f8;
  color: var(--red-dark);
  font-weight: 700;
}
.compare td.them { color: var(--muted); }
.compare td.row-label {
  text-align: left;
  font-weight: 600;
  background: #fafafa;
  white-space: nowrap;
}

/* ===== 套餐卡 ===== */
.plan {
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  position: relative;
}
.plan.recommend {
  border: 2px solid var(--red);
  background: #fffbf5;
}
.plan .badge {
  position: absolute;
  top: -11px;
  right: 12px;
  background: var(--red);
  color: #fff;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 600;
}
.plan .plan-name {
  font-size: 16px;
  font-weight: 700;
}
.plan .plan-price {
  font-size: 30px;
  color: var(--red);
  font-weight: 900;
  margin: 6px 0 4px;
}
.plan .plan-price small {
  font-size: 13px;
  color: var(--muted);
  font-weight: normal;
  margin-left: 6px;
}
.plan ul {
  list-style: none;
  margin-top: 8px;
}
.plan ul li {
  font-size: 13.5px;
  color: #444;
  padding: 3px 0 3px 22px;
  position: relative;
}
.plan ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: 900;
}
.plan .plan-link {
  display: block;
  margin-top: 10px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
  text-decoration: none;
  border: 1.5px solid var(--red);
  border-radius: 8px;
  padding: 6px 0;
  background: #fff;
}
.plan .plan-link:hover {
  background: var(--red);
  color: #fff;
}

/* ===== 服务承诺 ===== */
.promise-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.promise {
  background: #fafafa;
  border-radius: 10px;
  padding: 14px 12px;
  text-align: center;
}
.promise .p-icon {
  font-size: 22px;
}
.promise .p-title {
  font-size: 14px;
  font-weight: 700;
  margin: 4px 0 2px;
}
.promise .p-desc {
  font-size: 12px;
  color: var(--muted);
}

/* ===== 免费试做 ===== */
.trial {
  background: linear-gradient(135deg, var(--orange) 0%, #e65100 100%);
  color: #fff;
  text-align: center;
}
.trial h2 { font-size: 20px; margin-bottom: 6px; }
.trial p { font-size: 14px; opacity: 0.95; }
.trial .trial-num {
  font-size: 15px;
  margin-top: 10px;
}
.trial .trial-num strong {
  background: #fff;
  color: var(--orange);
  padding: 2px 10px;
  border-radius: 6px;
  margin: 0 3px;
  font-size: 18px;
}

/* ===== 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); }

/* ===== 底部悬浮栏 ===== */
.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：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; }