:root {
  --page-bg: #ffffff;
  --soft-bg: #f7f5f6;
  --text: #171717;
  --muted: #666666;
  --accent: #751d35;
  --accent-deep: #561225;
  --border: #ded9dc;
  --max-width: 1160px;
  --nav-height: 88px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background: var(--page-bg);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1,
h2 {
  line-height: 1.18;
  letter-spacing: -0.035em;
}

p {
  color: var(--muted);
}

.container {
  width: min(100% - (var(--gutter) * 2), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: #fff;
  background: var(--accent);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid rgba(117, 29, 53, 0.45);
  outline-offset: 3px;
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--nav-height);
  border-bottom: 1px solid rgba(222, 217, 220, 0.92);
  background: rgba(255, 255, 255, 0.96);
}

.nav-shell {
  width: min(100% - (var(--gutter) * 2), var(--max-width));
  height: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.brand-link img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.brand-link span {
  display: grid;
  gap: 0.1rem;
}

.brand-link strong {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.brand-link small {
  color: var(--muted);
}

.site-header nav,
.footer-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-header nav a {
  font-size: 0.9rem;
}

.nav-phone {
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--accent);
  color: var(--accent-deep);
}

.privacy-hero {
  padding: calc(var(--nav-height) + clamp(4rem, 9vw, 8rem)) 0 clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, #fff 0%, #fff 67%, var(--soft-bg) 67%, var(--soft-bg) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: end;
  gap: clamp(3rem, 8vw, 7rem);
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

h1 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2.6rem, 6.2vw, 5.5rem);
}

.hero-note {
  padding: 1.5rem;
  border-top: 2px solid var(--accent);
  background: #fff;
}

.hero-note p {
  margin: 0.35rem 0 0.8rem;
  color: var(--text);
}

.hero-note span {
  color: var(--muted);
  font-size: 0.85rem;
}

.privacy-content {
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(3rem, 8vw, 7rem);
}

aside {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
  display: grid;
  gap: 0.65rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--text);
}

aside p {
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

aside a {
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  color: var(--accent-deep);
  font-size: 0.88rem;
}

.articles article {
  position: relative;
  padding: 0 0 clamp(2.5rem, 6vw, 4.5rem) 4.5rem;
  scroll-margin-top: calc(var(--nav-height) + 2rem);
}

.articles article > span {
  position: absolute;
  top: 0.1rem;
  left: 0;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
}

.articles article::before {
  position: absolute;
  top: 0.65rem;
  bottom: 1rem;
  left: 2rem;
  width: 1px;
  background: var(--border);
  content: "";
}

.articles h2 {
  margin-bottom: 1.2rem;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.articles p {
  max-width: 760px;
  margin-bottom: 0.9rem;
}

.articles a {
  color: var(--accent-deep);
  border-bottom: 1px solid currentColor;
}

.review-notice {
  margin-left: 4.5rem;
  padding: 1.25rem 1.4rem;
  border-left: 3px solid var(--accent);
  background: var(--soft-bg);
}

.review-notice p {
  margin: 0.45rem 0 0;
}

.site-footer {
  padding: 2.2rem 0;
  border-top: 1px solid var(--border);
  background: var(--soft-bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-inner > div:first-child {
  display: grid;
  gap: 0.2rem;
}

.footer-inner strong {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.footer-inner span,
.footer-links a {
  color: var(--muted);
  font-size: 0.84rem;
}

@media (max-width: 820px) {
  .hero-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .privacy-hero {
    background: var(--soft-bg);
  }

  aside {
    position: static;
  }
}

@media (max-width: 600px) {
  :root {
    --nav-height: 76px;
    --gutter: 1.1rem;
  }

  .brand-link img {
    width: 54px;
    height: 54px;
  }

  .brand-link small,
  .site-header nav > a:not(.nav-phone) {
    display: none;
  }

  .articles article {
    padding-left: 2.75rem;
  }

  .articles article::before {
    left: 1.45rem;
  }

  .review-notice {
    margin-left: 0;
  }

  .footer-inner,
  .footer-links {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

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