:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #5b6773;
  --line: #d9e2e8;
  --bg: #f7faf9;
  --paper: #ffffff;
  --brand: #0f766e;
  --brand-dark: #0b4f4a;
  --navy: #162033;
  --accent: #b7791f;
  --accent-soft: #fff4df;
  --soft: #e8f4f1;
  --danger-soft: #fff1f2;
  --danger: #9f1239;
  --max: 1180px;
  --content-max: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
}

body {
  margin: 0;
  background: #fff;
}

body.has-sticky-lead {
  padding-bottom: 78px;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 13px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
}

.brand img {
  width: 34px;
  height: 34px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-size: 14px;
}

.hero {
  background: linear-gradient(180deg, #eef8f5 0%, #ffffff 82%);
  border-bottom: 1px solid var(--line);
}

.hero-v2 {
  background:
    linear-gradient(180deg, rgba(232, 244, 241, 0.94) 0%, rgba(255, 255, 255, 0.98) 78%),
    radial-gradient(circle at 78% 14%, rgba(183, 121, 31, 0.14), transparent 30%);
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 500px;
  padding: 64px 20px 48px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 44px;
  align-items: center;
}

.hero-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(430px, 1.05fr);
  gap: 42px;
}

.hero-copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-dark);
  font-weight: 700;
}

h1, h2, h3 {
  line-height: 1.25;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(38px, 4.2vw, 54px);
}

h1 span {
  white-space: nowrap;
}

h2 {
  margin: 0 0 18px;
  font-size: 30px;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.lead {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.trust-row {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.trust-row span {
  min-height: 72px;
  padding: 12px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted);
  font-size: 13px;
}

.trust-row strong {
  display: block;
  color: var(--navy);
  font-size: 21px;
  line-height: 1.2;
}

.actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.button.secondary {
  background: #fff;
  color: var(--brand);
}

.button:hover {
  text-decoration: none;
}

.visual-panel {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 18px 44px rgba(15, 118, 110, 0.12);
}

.product-shot {
  margin: 0;
  min-width: 0;
}

.product-shot img,
.inline-visual img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(22, 32, 51, 0.12);
  border-radius: 8px;
  box-shadow: 0 24px 58px rgba(22, 32, 51, 0.16);
}

.hero-shot img {
  max-height: 330px;
  object-fit: cover;
  object-position: left top;
}

.ops-panel {
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(22, 32, 51, 0.12);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 22px 52px rgba(22, 32, 51, 0.12);
}

.ops-head {
  display: grid;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.ops-head span,
.panel-title {
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
}

.ops-head strong {
  color: var(--navy);
  font-size: 20px;
  line-height: 1.35;
}

.ops-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.ops-metrics div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
}

.ops-metrics strong,
.ops-metrics span {
  display: block;
}

.ops-metrics span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.ops-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 16px 0;
}

.ops-flow span {
  padding: 10px 8px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

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

.ops-list div {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 0;
  border-top: 1px solid #edf2f4;
}

.ops-list b {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand);
}

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

.ops-list em {
  color: var(--brand-dark);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.product-shot figcaption,
.inline-visual figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.flow {
  display: grid;
  gap: 12px;
}

.flow-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfdfc;
}

.flow-no {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--brand);
  font-weight: 800;
}

.section {
  padding: 54px 20px;
}

.section.compact {
  padding-top: 46px;
  padding-bottom: 46px;
}

.section.alt {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.container {
  max-width: var(--max);
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-head p {
  color: var(--muted);
}

.card {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  min-width: 0;
}

.feature-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.feature-card a {
  font-weight: 700;
}

.fit-grid,
.pain-map,
.module-grid,
.evidence-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fit-card,
.pain-map article,
.module-grid article,
.evidence-list article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  min-width: 0;
}

.fit-card h3,
.pain-map h3,
.module-grid h3,
.evidence-list h3 {
  margin-top: 0;
}

.fit-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.fit-good {
  border-color: rgba(15, 118, 110, 0.28);
  background: #fbfdfc;
}

.fit-limited {
  border-color: rgba(159, 18, 57, 0.18);
  background: var(--danger-soft);
}

.fit-limited h3 {
  color: var(--danger);
}

.pill {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 3px 9px;
  border: 1px solid rgba(183, 121, 31, 0.26);
  border-radius: 999px;
  background: var(--accent-soft);
  color: #7c4a03;
  font-size: 12px;
  font-weight: 700;
}

.card p,
.content p,
.content li {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 36px;
}

.split-center {
  align-items: center;
}

.proof-panel,
.evidence-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.proof-panel div,
.evidence-strip article {
  min-height: 108px;
  padding: 18px;
  border: 1px solid rgba(22, 32, 51, 0.12);
  border-radius: 8px;
  background: #fff;
}

.proof-panel strong,
.evidence-strip strong {
  display: block;
  color: var(--navy);
  font-size: 32px;
  line-height: 1.1;
}

.proof-panel span,
.evidence-strip span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.45fr);
  gap: 28px;
  align-items: center;
}

.contact-actions {
  display: grid;
  justify-items: start;
  gap: 10px;
}

.list {
  margin: 0;
  padding-left: 20px;
}

.contact-band {
  padding: 42px 20px;
  background: var(--brand-dark);
  color: #fff;
}

.contact-band p {
  color: #d7eeea;
}

.site-footer {
  padding: 28px 20px;
  background: #111827;
  color: #d6dbe1;
  font-size: 14px;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

.content {
  max-width: 920px;
  margin: 0 auto;
  padding: 52px 20px;
  background: transparent;
}

.content-wide {
  max-width: var(--max);
}

.content h1 {
  max-width: 900px;
  font-size: clamp(34px, 3vw, 46px);
}

.content h2 {
  margin-top: 42px;
}

.note {
  padding: 16px;
  border-left: 4px solid var(--brand);
  background: var(--soft);
  color: var(--brand-dark);
}

.inline-visual {
  margin: 32px 0;
}

.capability-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 32px;
  align-items: center;
  margin-bottom: 34px;
}

.capability-visual {
  margin: 0;
}

.capability-visual img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: left top;
  border: 1px solid rgba(22, 32, 51, 0.12);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(22, 32, 51, 0.12);
}

.capability-visual figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.capability-panel {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid rgba(22, 32, 51, 0.12);
  border-radius: 8px;
  background: #fbfdfc;
}

.panel-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
}

.panel-row span {
  color: var(--muted);
}

.panel-row strong {
  color: var(--ink);
  font-weight: 700;
}

.panel-ai {
  margin-top: 6px;
  padding: 12px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--brand-dark);
  font-weight: 700;
}

.qualify-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(340px, 0.75fr);
  gap: 24px;
  align-items: start;
}

.qualify-form,
.summary-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.qualify-form {
  display: grid;
  gap: 16px;
}

.qualify-form label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 700;
}

select,
input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

button.button {
  cursor: pointer;
}

.summary-panel {
  position: sticky;
  top: 88px;
}

.summary-panel h2 {
  margin-top: 0;
}

.small-note {
  color: var(--muted);
  font-size: 14px;
}

.source-note {
  margin: 0 0 18px;
  padding: 10px 12px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 6px;
  background: var(--soft);
  color: var(--brand-dark);
  font-size: 14px;
}

.lead-capture-panel {
  max-width: var(--max);
  margin: 46px auto 0;
  padding: 24px;
  border: 1px solid rgba(15, 118, 110, 0.22);
  border-radius: 8px;
  background: linear-gradient(180deg, #fbfdfc 0%, #ffffff 100%);
}

main > .lead-capture-panel {
  width: min(calc(100% - 40px), var(--max));
}

.content .lead-capture-panel {
  width: 100%;
}

.lead-capture-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.48fr);
  gap: 24px;
  align-items: stretch;
}

.lead-capture-panel h2 {
  margin: 0 0 12px;
  font-size: 25px;
}

.lead-capture-panel p,
.lead-capture-panel li {
  color: var(--muted);
}

.lead-criteria {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.lead-criteria li {
  position: relative;
  padding-left: 18px;
}

.lead-criteria li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
}

.lead-action-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.lead-action-card strong {
  color: var(--navy);
  font-size: 20px;
}

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

.lead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sticky-lead-bar {
  position: fixed;
  left: 50%;
  bottom: 14px;
  z-index: 30;
  width: min(calc(100% - 32px), 960px);
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: #111827;
  box-shadow: 0 18px 48px rgba(17, 24, 39, 0.24);
  cursor: pointer;
}

.sticky-lead-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.sticky-lead-copy strong {
  color: #fff;
  line-height: 1.35;
}

.sticky-lead-copy span {
  color: #d6dbe1;
  font-size: 13px;
}

.sticky-lead-bar .button {
  flex: 0 0 auto;
  min-height: 38px;
  border-color: #fff;
  background: #fff;
  color: var(--brand-dark);
}

.sticky-lead-phone {
  flex: 0 0 auto;
  color: #d7eeea;
  font-weight: 700;
  white-space: nowrap;
}

.sticky-lead-phone:hover {
  color: #fff;
  text-decoration: none;
}

.article-list {
  display: grid;
  gap: 12px;
  margin: 28px 0;
}

.article-link {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
}

.article-link span {
  color: var(--muted);
}

.article-link:hover {
  border-color: var(--brand);
  text-decoration: none;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 15px;
}

th, td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--soft);
}

@media (max-width: 820px) {
  .hero-inner,
  .grid,
  .split,
  .hero-grid,
  .capability-hero,
  .fit-grid,
  .pain-map,
  .module-grid,
  .evidence-list,
  .proof-panel,
  .evidence-strip,
  .contact-grid,
  .qualify-layout,
  .lead-capture-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    padding-top: 54px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  h1 {
    font-size: 32px;
  }

  h1 span {
    white-space: normal;
  }

  .trust-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .summary-panel {
    position: static;
  }

  .ops-metrics,
  .ops-flow {
    grid-template-columns: 1fr;
  }

  .ops-list div,
  .panel-row {
    grid-template-columns: 1fr;
  }

  .lead-action-card {
    justify-content: start;
  }
}

@media (max-width: 520px) {
  .hero-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .section,
  .content,
  .contact-band {
    padding-left: 16px;
    padding-right: 16px;
  }

  h1 {
    font-size: 29px;
  }

  h2 {
    font-size: 24px;
  }

  .lead {
    font-size: 16px;
  }

  .trust-row {
    grid-template-columns: 1fr;
  }

  .product-shot,
  .inline-visual {
    width: calc(100vw - 32px);
    max-width: calc(100vw - 32px);
    overflow: hidden;
  }

  .capability-visual img {
    height: auto;
  }

  .nav-links {
    gap: 12px;
  }

  body.has-sticky-lead {
    padding-bottom: 118px;
  }

  main > .lead-capture-panel {
    width: calc(100% - 32px);
  }

  .lead-capture-panel {
    padding: 18px;
  }

  .lead-capture-panel h2 {
    font-size: 22px;
  }

  .sticky-lead-bar {
    left: 0;
    right: auto;
    bottom: 0;
    width: 100vw;
    max-width: none;
    transform: none;
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: 0;
    padding: 10px 16px;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
  }

  .sticky-lead-bar .button {
    display: none;
  }

  .sticky-lead-copy strong {
    font-size: 14px;
  }

  .sticky-lead-copy strong::after {
    content: " · 点这里诊断";
    color: #d7eeea;
    font-weight: 700;
  }

  .sticky-lead-copy span {
    display: none;
  }

  .sticky-lead-phone {
    display: none;
  }
}

/* Ai汇礼 ICP 备案展示 */
.site-icp {
  padding: 10px 16px 18px;
  color: #667085;
  background: #ffffff;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}

.site-icp a {
  color: inherit;
  text-decoration: none;
}

.site-icp a:hover,
.site-icp a:focus-visible {
  color: #344054;
  text-decoration: underline;
}