:root {
  --red: #e53e2f;
  --dark-red: #8b1a10;
  --gold: #f6c453;
  --text: #222;
  --muted: #666;
  --line: #eee2df;
  --bg: #fff7f4;
  --card: #fff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  max-width: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
  padding-bottom: 72px;
  overflow-x: hidden;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

img { max-width: 100%; height: auto; }

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 16px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: var(--dark-red);
}

.brand-logo {
  display: block;
  width: 112px;
  height: auto;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--red), var(--dark-red));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
}

.top-call {
  padding: 7px 10px;
  border-radius: 999px;
  color: #fff;
  background: var(--red);
  font-size: 13px;
  font-weight: 700;
}

.quick-nav {
  position: sticky;
  top: 56px;
  z-index: 18;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 8px 12px;
  background: rgba(255, 247, 244, 0.97);
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
}

.quick-nav::-webkit-scrollbar {
  display: none;
}

.quick-nav a {
  flex: 0 0 auto;
  min-width: 58px;
  height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--dark-red);
  font-size: 13px;
  font-weight: 800;
}

.quick-nav a.active {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.hero {
  padding: 24px 16px 18px;
  background:
    radial-gradient(circle at 86% 12%, rgba(246, 196, 83, 0.34), transparent 34%),
    linear-gradient(145deg, var(--dark-red), var(--red));
  color: #fff;
}

.eyebrow {
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.25;
}

.hero h1 {
  margin-top: 10px;
  font-size: 24px;
  letter-spacing: 0;
  line-height: 1.35;
}

.hero p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}

.btn {
  height: 44px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 800;
}

.btn-primary {
  background: var(--gold);
  color: var(--dark-red);
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.58);
  color: #fff;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 18px;
}

.metric {
  padding: 10px 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.metric strong {
  display: block;
  color: #fff;
  font-size: 18px;
}

.metric span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
}

.section {
  padding: 22px 16px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin-bottom: 12px;
}

.section h2 {
  font-size: 21px;
}

.section-note {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 8px 22px rgba(139, 26, 16, 0.06);
}

.service-card h3 {
  font-size: 17px;
}

.service-card p {
  margin: 7px 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--dark-red);
  background: #fff0d2;
  font-size: 12px;
  font-weight: 700;
}

.price-list {
  display: grid;
  gap: 10px;
}

.price-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.price-item > div:first-child {
  min-width: 0;
  flex: 1 1 auto;
}

.price-item span {
  color: var(--muted);
  font-size: 13px;
}

.price {
  white-space: nowrap;
  color: var(--red);
  font-size: 18px;
  font-weight: 900;
  flex-shrink: 0;
}

.tool-strip {
  display: grid;
  gap: 10px;
}

.tool {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.tool strong {
  display: block;
  font-size: 16px;
}

.tool span {
  color: var(--muted);
  font-size: 13px;
}

.check-panel {
  margin-top: -18px;
  padding: 0 16px;
  position: relative;
  z-index: 4;
}

.check-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 12px 28px rgba(139, 26, 16, 0.12);
}

.check-card h2 {
  font-size: 20px;
  margin-bottom: 4px;
}

.check-card p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}

.name-form {
  display: grid;
  gap: 10px;
}

.name-field {
  display: grid;
  gap: 6px;
}

.name-field label {
  color: var(--dark-red);
  font-size: 13px;
  font-weight: 800;
}

.name-field input,
.name-field select {
  width: 100%;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #fffaf8;
  color: var(--text);
  font-size: 15px;
  outline: none;
}

.industry-picker {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf8;
  overflow: hidden;
}

.industry-summary {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 12px;
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.industry-summary::-webkit-details-marker {
  display: none;
}

.industry-summary::after {
  content: "选择";
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.industry-options {
  padding: 10px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.industry-group {
  margin-bottom: 12px;
}

.industry-group:last-child {
  margin-bottom: 0;
}

.industry-group-title {
  color: var(--dark-red);
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 8px;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.industry-option {
  min-height: 34px;
  border: 1px solid #f0d1cb;
  border-radius: 8px;
  background: #fff7f4;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
}

.industry-option.active {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}

.name-field input:focus,
.name-field select:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(229, 62, 47, 0.12);
}

.chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  min-height: 30px;
  border: 1px solid #f0d1cb;
  border-radius: 999px;
  padding: 5px 10px;
  background: #fff;
  color: var(--dark-red);
  font-size: 13px;
  font-weight: 800;
}

.name-submit {
  width: 100%;
  height: 48px;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--red), var(--dark-red));
  color: #fff;
  font-size: 16px;
  font-weight: 900;
}

.usage-note {
  margin-top: 9px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

.sample-name {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  background: #fff7e6;
  color: var(--dark-red);
  font-size: 13px;
}

.rule-list {
  display: grid;
  gap: 10px;
}

.rule-item {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.rule-num {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--red);
  font-weight: 900;
  font-size: 13px;
}

.rule-item strong {
  display: block;
  color: var(--text);
}

.rule-item p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.step-list, .faq-list, .area-list, .article-list {
  display: grid;
  gap: 10px;
}

.step, .faq, .article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.step b {
  color: var(--red);
}

.faq h3 {
  font-size: 16px;
}

.faq p, .article p, .step p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.area-list {
  grid-template-columns: repeat(4, 1fr);
}

.area-list span {
  min-height: 34px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--dark-red);
  font-size: 13px;
  font-weight: 700;
}

.page-hero {
  padding: 24px 16px;
  color: #fff;
  background: linear-gradient(145deg, var(--dark-red), var(--red));
}

.page-hero h1 {
  margin-top: 8px;
  font-size: 22px;
  line-height: 1.35;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.88);
}

.content-block {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 16px;
}

.content-block h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.content-block ul {
  margin: 0;
  padding-left: 18px;
}

.content-block li {
  margin: 8px 0;
}

.bottom-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  padding: 8px;
  padding-bottom: max(8px, env(safe-area-inset-bottom));
}

.bottom-cta a {
  height: 48px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
}

.bottom-cta a:first-child {
  background: var(--dark-red);
}

.bottom-cta a:last-child {
  background: var(--red);
}

.footer {
  margin-top: 24px;
  padding: 22px 16px 92px;
  color: var(--text);
  background: linear-gradient(180deg, #fff, #fff4ef);
  border-top: 3px solid var(--red);
}

.footer p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.footer strong {
  color: var(--dark-red);
  font-size: 18px;
}

@media (min-width: 680px) {
  body {
    max-width: 520px;
    margin: 0 auto;
    box-shadow: 0 0 0 1px var(--line);
  }
}