:root {
  --bg: #f7f6f2;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --surface-alt: #efede5;
  --text: #171717;
  --muted: #5d5d5d;
  --border: #d9d5ca;
  --accent: #a16207;
  --accent-soft: rgba(161, 98, 7, 0.08);
  --shadow: 0 18px 50px rgba(23, 23, 23, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(circle at top left, rgba(161, 98, 7, 0.09), transparent 32%),
    linear-gradient(180deg, #fbfaf7 0%, #f4f1ea 100%);
  color: var(--text);
  font-family: 'Montserrat', system-ui, sans-serif; /* 原为 'Roboto Mono' */
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

a:hover {
  color: var(--accent);
}

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

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  z-index: 1000;
  padding: 10px 14px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: top 180ms ease;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(239, 237, 229, 0.65));
  border-top: 1px solid rgba(217, 213, 202, 0.65);
  border-bottom: 1px solid rgba(217, 213, 202, 0.65);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  background: rgba(247, 246, 242, 0.78);
  border-bottom: 1px solid rgba(217, 213, 202, 0.8);
}

.nav-shell {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.brand-logo {
  width: clamp(150px, 16vw, 220px);
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  position: relative;
  padding: 12px 0;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0;
}

.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 7px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--accent);
  transition: transform 180ms ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
  transform: scaleX(1);
}

.nav a:focus-visible,
.button:focus-visible,
.footer-links a:focus-visible,
.footer-info a:focus-visible {
  outline: 3px solid rgba(161, 98, 7, 0.35);
  outline-offset: 3px;
  border-radius: 10px;
}

.hero {
  padding-top: 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 32px;
  align-items: start;
}

.hero-copy {
  padding: 12px 0 0;
}

.eyebrow {
  margin: 0 0 16px;
  font-family: 'Montserrat', system-ui, sans-serif; /* 原为 'Exo' */
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: 'Montserrat', system-ui, sans-serif; /* 原为 'Exo' */
  letter-spacing: 0;
  line-height: 1.06;
}

h1 {
  max-width: 12ch;
  font-size: clamp(3.2rem, 7vw, 6.3rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  font-weight: 700;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.hero-lead,
.section-heading p,
.about-block p,
.product-card p,
.panel-card p,
.footer-info p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.hero-lead {
  max-width: 62ch;
  margin: 24px 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
  cursor: pointer;
}

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

.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(161, 98, 7, 0.22);
}

.button-primary:hover {
  color: #fff;
  background: #8f5505;
}

.button-secondary {
  background: var(--surface-strong);
  border-color: var(--border);
  color: var(--text);
}

.button-secondary:hover {
  color: var(--text);
  border-color: #bda97a;
  background: #fffdf8;
}

.hero-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.point {
  min-height: 90px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(217, 213, 202, 0.95);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(23, 23, 23, 0.04);
  font-size: 0.92rem;
  line-height: 1.65;
}

.hero-panel {
  display: grid;
  gap: 16px;
}

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

.policy-meta .point strong {
  font-family: 'Montserrat', system-ui, sans-serif; /* 原为 'Exo' */
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.policy-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
}

.policy-toc a {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  font-size: 0.88rem;
}

.policy-stack {
  display: grid;
  gap: 18px;
}

.policy-section {
  padding: 24px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(217, 213, 202, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.policy-section h2 {
  margin-bottom: 16px;
  font-size: clamp(1.7rem, 2.3vw, 2.4rem);
}

.policy-section h3 {
  margin: 18px 0 10px;
  font-size: 1.08rem;
}

.policy-section p {
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.8;
}

.policy-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.policy-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.policy-list li + li {
  margin-top: 8px;
}

.panel-card,
.product-card,
.about-block {
  background: var(--surface);
  border: 1px solid rgba(217, 213, 202, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-card {
  padding: 22px;
}

.panel-accent {
  background: linear-gradient(145deg, rgba(161, 98, 7, 0.08), rgba(255, 255, 255, 0.88));
}

.panel-label,
.product-tag,
.footer-label {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-heading {
  max-width: 740px;
  margin-bottom: 32px;
}

.section-heading p {
  margin: 18px 0 0;
}

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

.product-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
}

.product-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: #161616;
  color: #fff;
  font-family: 'Montserrat', sans-serif; /* 原为 'Exo' */
  font-size: 0.95rem;
  font-weight: 700;
}

.product-card p {
  margin: 0;
}

.product-card .product-tag {
  margin-bottom: 0;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: start;
}

.about-copy {
  display: grid;
  gap: 16px;
}

.about-block {
  padding: 24px;
}

.about-block h3 {
  margin-bottom: 10px;
}

.about-block.emphasize {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(161, 98, 7, 0.08));
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 28px;
  align-items: start;
}

.footer h2 {
  max-width: 13ch;
}

.footer-info {
  display: grid;
  gap: 20px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid rgba(217, 213, 202, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.footer-info p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding-top: 4px;
}

.footer-links a,
.footer-info a {
  font-weight: 700;
}

.copyright {
  padding-top: 8px;
  border-top: 1px solid rgba(217, 213, 202, 0.9);
  font-size: 0.92rem;
}

@media (max-width: 1100px) {
  .hero-grid,
  .about-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-copy {
    padding-top: 0;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 72px 0;
  }

  .nav-shell {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 0 18px;
  }

  .nav {
    justify-content: flex-start;
    gap: 18px 24px;
  }

  h1 {
    max-width: 14ch;
    font-size: clamp(2.7rem, 13vw, 4.2rem);
  }

  .hero-points,
  .product-grid,
  .hero-panel {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .section {
    padding: 64px 0;
  }

  .nav a {
    padding: 10px 0;
  }

  .hero-lead,
  .section-heading p,
  .about-block p,
  .product-card p,
  .panel-card p,
  .footer-info p {
    font-size: 0.97rem;
  }

  .footer-info,
  .panel-card,
  .product-card,
  .about-block {
    border-radius: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}