:root {
  --bg: #f4ede3;
  --bg-soft: #f9f4ec;
  --panel: rgba(255, 250, 244, 0.92);
  --panel-strong: rgba(255, 246, 235, 0.96);
  --text: #1f1d1a;
  --muted: #655f58;
  --line: rgba(31, 29, 26, 0.12);
  --accent: #0f766e;
  --accent-strong: #da6a4e;
  --ink-soft: #2f3f54;
  --shadow: 0 24px 70px rgba(61, 43, 24, 0.12);
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 28%),
    radial-gradient(circle at top right, rgba(218, 106, 78, 0.12), transparent 32%),
    linear-gradient(180deg, #f7f1e8 0%, #f3ecdf 100%);
  line-height: 1.65;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(247, 241, 232, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fffaf3;
  font-weight: 800;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text small {
  color: var(--muted);
  letter-spacing: 0.1em;
  font-size: 0.7rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover,
.contact-list a:hover,
.footer-bottom a:hover {
  color: var(--accent);
}

.hero {
  padding: 96px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 42px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 10ch;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.9;
  margin-bottom: 18px;
  letter-spacing: -0.04em;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 0.96;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

.hero-lead,
.section-heading p,
.proof-copy p,
.cta-box p,
.info-card p,
.scenario-grid p,
.steps p,
.hero-points li,
.contact-list span {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0;
}

.hero-caption,
.contact-side-note {
  max-width: 44ch;
  color: var(--ink-soft);
  font-size: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), #49d6b2);
  color: #09111a;
  box-shadow: 0 14px 36px rgba(73, 214, 178, 0.28);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-visual,
.info-card,
.proof-panel,
.steps article,
.cta-box,
.scenario-grid article {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-visual {
  position: relative;
}

.hero-badge {
  display: inline-flex;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255, 250, 244, 0.86);
  border: 1px solid rgba(31, 29, 26, 0.08);
  box-shadow: var(--shadow);
  margin-bottom: 18px;
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-weight: 700;
}

.hero-mosaic {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.mosaic-card,
.mosaic-quote {
  min-height: 170px;
  padding: 22px;
  border-radius: 30px;
  background: rgba(255, 250, 244, 0.94);
  border: 1px solid rgba(31, 29, 26, 0.08);
  box-shadow: var(--shadow);
}

.mosaic-card-large {
  grid-column: span 2;
  min-height: 220px;
}

.mosaic-card span,
.mosaic-quote {
  color: var(--muted);
}

.mosaic-card strong,
.info-card h3,
.scenario-grid h3,
.steps h3 {
  display: block;
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.mosaic-card strong {
  font-size: 1.55rem;
  line-height: 1.15;
  margin-top: 8px;
}

.accent-card {
  background: linear-gradient(135deg, #0f766e, #154b5d);
  color: #f9f4ec;
}

.accent-card span {
  color: rgba(249, 244, 236, 0.76);
}

.mosaic-quote {
  display: flex;
  align-items: flex-end;
  font-size: 1.1rem;
  line-height: 1.4;
  font-family: Georgia, "Times New Roman", serif;
}

.hero-footnote {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border-left: 3px solid var(--accent-strong);
  color: var(--ink-soft);
}

.hero-footnote span {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--muted);
}

.trust-strip {
  padding: 8px 0 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.trust-grid div {
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 250, 244, 0.72);
  border: 1px solid rgba(31, 29, 26, 0.08);
}

.trust-grid strong {
  display: block;
  margin-bottom: 6px;
}

.trust-grid span {
  color: var(--muted);
}

.section {
  padding: 96px 0;
}

.manifesto-section {
  padding-top: 34px;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: start;
}

.manifesto-copy {
  padding: 10px 0;
}

.manifesto-lead {
  max-width: 34ch;
  font-size: 1.24rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

.manifesto-stack {
  display: grid;
  gap: 16px;
}

.manifesto-stack article {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 14px;
  padding: 20px 22px;
  border-top: 1px solid rgba(31, 29, 26, 0.1);
}

.manifesto-stack span {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  color: var(--accent-strong);
  line-height: 1;
}

.manifesto-stack p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.section-contrast {
  background:
    linear-gradient(180deg, rgba(18, 34, 48, 0.98), rgba(18, 34, 48, 0.94)),
    transparent;
  color: #f4ede3;
}

.section-accent {
  background:
    linear-gradient(180deg, rgba(218, 106, 78, 0.08), rgba(15, 118, 110, 0.05)),
    transparent;
}

.section-contrast .eyebrow,
.section-contrast h2 {
  color: #f4ede3;
}

.section-contrast .section-heading p,
.section-contrast .scenario-grid p {
  color: rgba(244, 237, 227, 0.72);
}

.anti-fit {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(244, 237, 227, 0.16);
  display: grid;
  gap: 10px;
}

.anti-fit span {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.74rem;
  color: rgba(244, 237, 227, 0.6);
}

.anti-fit p {
  max-width: 56ch;
  margin: 0;
  color: rgba(244, 237, 227, 0.82);
}

.section-heading {
  max-width: 800px;
  margin-bottom: 34px;
}

.card-grid,
.scenario-grid,
.steps {
  display: grid;
  gap: 18px;
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card,
.scenario-grid article,
.steps article {
  border-radius: 28px;
  padding: 24px;
}

.tone-a {
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.08), rgba(255, 250, 244, 0.98));
}

.tone-b {
  background: linear-gradient(180deg, rgba(218, 106, 78, 0.09), rgba(255, 250, 244, 0.98));
}

.tone-c {
  background: linear-gradient(180deg, rgba(47, 63, 84, 0.08), rgba(255, 250, 244, 0.98));
}

.tone-d {
  background: linear-gradient(180deg, rgba(193, 142, 68, 0.08), rgba(255, 250, 244, 0.98));
}

.tone-e {
  background: linear-gradient(180deg, rgba(34, 113, 100, 0.08), rgba(255, 250, 244, 0.98));
}

.tone-f {
  background: linear-gradient(180deg, rgba(107, 85, 136, 0.08), rgba(255, 250, 244, 0.98));
}

.proof-layout {
  display: grid;
  grid-template-columns: 220px 220px 1fr;
  gap: 18px;
  align-items: stretch;
}

.proof-panel {
  border-radius: 28px;
  padding: 26px;
  background: linear-gradient(180deg, rgba(255, 250, 244, 0.96), rgba(242, 231, 219, 0.9));
}

.proof-number {
  display: block;
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 14px;
  color: var(--accent-strong);
}

.proof-copy {
  padding: 8px 0 0 10px;
}

.proof-card {
  padding: 30px;
  border-radius: 32px;
  background: rgba(255, 250, 244, 0.84);
  border: 1px solid rgba(31, 29, 26, 0.08);
  box-shadow: var(--shadow);
}

.editorial-band {
  padding-top: 36px;
}

.editorial-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
}

.editorial-label {
  position: sticky;
  top: 110px;
}

.editorial-columns {
  display: grid;
  gap: 18px;
}

.editorial-columns article {
  padding: 24px 0 26px;
  border-top: 1px solid rgba(31, 29, 26, 0.12);
}

.editorial-columns strong {
  display: block;
  margin-bottom: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.7rem;
  font-weight: 700;
}

.editorial-columns p {
  max-width: 36ch;
  margin: 0;
  color: var(--ink-soft);
}

.steps article span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  background: rgba(15, 118, 110, 0.1);
  color: var(--accent);
  font-weight: 800;
}

.section-cta {
  padding-top: 30px;
}

.cta-box {
  border-radius: 36px;
  padding: 34px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  background: linear-gradient(135deg, #0f766e, #154b5d 65%, #1f3547 100%);
  color: #f9f4ec;
}

.cta-box .eyebrow,
.cta-box p {
  color: rgba(249, 244, 236, 0.78);
}

.site-footer {
  padding: 84px 0 32px;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  margin-bottom: 32px;
}

.contact-list {
  display: grid;
  gap: 12px;
  align-content: start;
}

.contact-stack {
  display: grid;
  gap: 22px;
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 250, 244, 0.88);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  font: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #8b97ac;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(110, 231, 200, 0.28);
  border-color: rgba(110, 231, 200, 0.42);
}

.form-status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  color: #fffaf3;
  background: linear-gradient(135deg, #6ee7c8, #f5c15b);
  font-weight: 700;
}

.form-status-error {
  background: rgba(173, 61, 38, 0.12);
  color: #8f2e1c;
  border: 1px solid rgba(173, 61, 38, 0.2);
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.contact-list a,
.contact-list span {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .manifesto-grid,
  .proof-layout,
  .editorial-grid,
  .footer-grid,
  .cta-box {
    grid-template-columns: 1fr;
  }

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

  .hero-mosaic {
    grid-template-columns: 1fr 1fr;
  }

  .editorial-label {
    position: static;
  }
}

@media (max-width: 720px) {
  .nav-shell {
    align-items: flex-start;
    padding: 14px 0;
    flex-direction: column;
    gap: 14px;
  }

  .nav {
    gap: 14px;
  }

  .hero {
    padding-top: 64px;
  }

  .trust-grid,
  .card-grid,
  .scenario-grid,
  .steps,
  .hero-mosaic {
    grid-template-columns: 1fr;
  }

  .mosaic-card-large {
    grid-column: span 1;
  }

  .manifesto-stack article {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 100%;
  }

  .container {
    width: min(var(--container), calc(100% - 28px));
  }

  .section,
  .site-footer {
    padding: 72px 0 26px;
  }
}