:root {
  --forest: #11382b;
  --forest-dark: #08221a;
  --leaf: #2f7754;
  --bamboo: #d5aa55;
  --bamboo-soft: #f6e4bd;
  --chili: #b74129;
  --paper: #fffaf0;
  --cream: #f7f0df;
  --stone: #2a2d2a;
  --ink: #17231d;
  --muted: #65726b;
  --line: rgba(23, 35, 29, 0.14);
  --white: #ffffff;
  --shadow: 0 18px 42px rgba(8, 34, 26, 0.12);
  --container: 1180px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  background: var(--paper);
}

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

img {
  display: block;
  max-width: 100%;
}

table {
  border-collapse: collapse;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.55rem 0.9rem;
  color: var(--white);
  background: var(--forest);
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(23, 35, 29, 0.1);
  background: rgba(255, 250, 240, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 1rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: max-content;
}

.brand-lockup strong {
  display: block;
  color: var(--forest);
  font-size: 1.16rem;
  line-height: 1.12;
  letter-spacing: 0;
}

.brand-lockup small {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  color: var(--forest);
  font-size: 0.95rem;
}

.site-nav a {
  padding: 0.45rem 0;
}

.nav-cta {
  padding: 0.58rem 0.9rem !important;
  color: var(--white);
  background: var(--forest);
  border-radius: var(--radius);
  font-weight: 800;
}

.hero {
  position: relative;
  min-height: 690px;
  overflow: hidden;
  color: var(--white);
  background: var(--forest-dark);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 25, 20, 0.9) 0%, rgba(8, 25, 20, 0.72) 38%, rgba(8, 25, 20, 0.2) 72%),
    linear-gradient(0deg, rgba(8, 25, 20, 0.72) 0%, rgba(8, 25, 20, 0) 34%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 690px;
  flex-direction: column;
  justify-content: center;
  padding: 92px 0 70px;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--chili);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
}

.hero .eyebrow,
.credentials-section .eyebrow,
.cta-section .eyebrow {
  color: var(--bamboo-soft);
}

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

h1 {
  max-width: 720px;
  margin-bottom: 1.2rem;
  font-size: 4.35rem;
  line-height: 1.05;
  letter-spacing: 0;
}

h1 span {
  display: block;
}

h2 {
  margin-bottom: 1rem;
  color: var(--forest-dark);
  font-size: 2.6rem;
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.55rem;
  color: var(--forest);
  font-size: 1.16rem;
  line-height: 1.35;
}

.hero-lead {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.78rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
  line-height: 1.2;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--forest-dark);
  background: var(--bamboo);
  box-shadow: 0 12px 28px rgba(213, 170, 85, 0.25);
}

.btn-light {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 180px));
  gap: 0.8rem;
  margin: 2.4rem 0 0;
}

.hero-facts div {
  min-height: 106px;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.hero-facts dt {
  color: var(--bamboo-soft);
  font-size: 1.78rem;
  font-weight: 900;
  line-height: 1.1;
}

.hero-facts dd {
  margin: 0.45rem 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}

.answer-section {
  padding: 48px 0;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.answer-layout {
  display: grid;
  grid-template-columns: 0.42fr 0.58fr;
  gap: 3rem;
  align-items: start;
}

.answer-block {
  margin: 0;
  padding-left: 1.2rem;
  border-left: 4px solid var(--bamboo);
  color: #2d3b34;
  font-size: 1.13rem;
}

.section {
  padding: 88px 0;
}

.two-column,
.credentials-layout,
.faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.section-copy p,
.section-heading p {
  color: var(--muted);
  font-size: 1.04rem;
}

.section-heading {
  max-width: 850px;
  margin-bottom: 2.2rem;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.product-section {
  background: linear-gradient(180deg, var(--paper) 0%, var(--cream) 100%);
}

.product-panel,
.value-grid article,
.scene-grid article,
.credentials-grid article,
.faq-list details,
.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 34px rgba(8, 34, 26, 0.07);
}

.product-panel {
  padding: 1.4rem;
}

.spec-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.spec-list div {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 1rem;
  padding: 0.78rem 0;
  border-bottom: 1px solid var(--line);
}

.spec-list dt {
  color: var(--muted);
  font-weight: 800;
}

.spec-list dd {
  margin: 0;
  color: var(--ink);
}

.pain-section {
  color: rgba(255, 255, 255, 0.82);
  background:
    linear-gradient(135deg, rgba(183, 65, 41, 0.22), rgba(183, 65, 41, 0) 35%),
    linear-gradient(135deg, var(--forest-dark), var(--forest));
}

.pain-section h2,
.pain-section h3,
.credentials-section h2,
.credentials-section h3,
.cta-section h2 {
  color: var(--white);
}

.pain-section .section-heading p {
  color: rgba(255, 255, 255, 0.72);
}

.value-grid,
.scene-grid,
.credentials-grid {
  display: grid;
  gap: 1rem;
}

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

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

.value-grid article {
  padding: 1.25rem;
  border-color: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: none;
}

.value-grid span {
  display: inline-flex;
  margin-bottom: 1rem;
  color: var(--bamboo-soft);
  font-weight: 900;
}

.value-grid p,
.scene-grid p,
.credentials-grid p {
  margin-bottom: 0;
}

.scene-grid article,
.credentials-grid article {
  padding: 1.25rem;
}

.scene-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 34px;
  margin-bottom: 1rem;
  color: var(--forest-dark);
  background: var(--bamboo-soft);
  border-radius: var(--radius);
  font-weight: 900;
}

.credentials-section {
  color: rgba(255, 255, 255, 0.82);
  background:
    linear-gradient(135deg, var(--stone), var(--forest-dark));
}

.credentials-section .section-copy p {
  color: rgba(255, 255, 255, 0.7);
}

.credentials-grid article {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.credentials-grid strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--bamboo-soft);
  font-size: 1.08rem;
}

.comparison-section {
  background: var(--white);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.comparison-table {
  width: 100%;
  min-width: 820px;
}

.comparison-table caption {
  padding: 1rem 1.2rem;
  color: var(--forest);
  font-weight: 900;
  text-align: left;
}

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

.comparison-table thead th {
  color: var(--forest-dark);
  background: var(--bamboo-soft);
}

.comparison-table tbody th {
  width: 138px;
  color: var(--forest);
  background: #fff7e8;
}

.process-section {
  background: var(--cream);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.process-list li {
  position: relative;
  min-height: 210px;
  padding: 4.4rem 1.2rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.process-list li::before {
  position: absolute;
  left: 1.2rem;
  top: 1.1rem;
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  color: var(--chili);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
}

.process-list strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--forest);
  font-size: 1.08rem;
}

.process-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.faq-section {
  background: var(--paper);
}

.faq-list {
  display: grid;
  gap: 0.75rem;
}

.faq-list details {
  padding: 0.2rem 1.1rem;
}

.faq-list summary {
  cursor: pointer;
  padding: 0.95rem 0;
  color: var(--forest-dark);
  font-weight: 900;
}

.faq-list p {
  margin: 0;
  padding: 0 0 1rem;
  color: var(--muted);
}

.cta-section {
  padding: 76px 0;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(183, 65, 41, 0.85), rgba(183, 65, 41, 0.18)),
    linear-gradient(135deg, var(--forest), var(--forest-dark));
}

.cta-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: 2rem;
  align-items: center;
}

.cta-layout p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-card {
  padding: 1.35rem;
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.contact-card span {
  display: block;
  color: var(--bamboo-soft);
  font-weight: 900;
}

.contact-card a {
  display: block;
  margin-top: 0.35rem;
  color: var(--white);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
}

.site-footer {
  padding: 48px 0;
  color: rgba(255, 255, 255, 0.78);
  background: #0a1713;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) 0.7fr 0.7fr;
  gap: 2rem;
}

.footer-brand strong {
  color: var(--white);
}

.footer-brand small,
.site-footer p {
  color: rgba(255, 255, 255, 0.64);
}

.site-footer strong {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--bamboo-soft);
}

.site-footer p {
  margin-bottom: 0.45rem;
}

@media (max-width: 980px) {
  .site-nav {
    gap: 0.8rem;
    font-size: 0.9rem;
  }

  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 2.1rem;
  }

  .answer-layout,
  .two-column,
  .credentials-layout,
  .faq-layout,
  .cta-layout {
    grid-template-columns: 1fr;
  }

  .value-grid,
  .scene-grid,
  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 0.85rem 0;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    white-space: nowrap;
  }

  .hero,
  .hero-content {
    min-height: 720px;
  }

  .hero-media img {
    object-position: 68% center;
  }

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(8, 25, 20, 0.92) 0%, rgba(8, 25, 20, 0.82) 56%, rgba(8, 25, 20, 0.28) 100%);
  }

  .hero-content {
    justify-content: flex-end;
    padding: 84px 0 42px;
  }

  h1 {
    font-size: 2.48rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero-lead,
  .answer-block {
    font-size: 1rem;
  }

  .hero-facts,
  .value-grid,
  .scene-grid,
  .credentials-grid,
  .process-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-facts {
    gap: 0.6rem;
  }

  .hero-facts div {
    min-height: auto;
  }

  .section {
    padding: 62px 0;
  }

  .spec-list div {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .process-list li {
    min-height: auto;
  }

  .contact-card a {
    font-size: 1.55rem;
  }
}