/*
 * 富爱俱乐部 · 北京落地页
 * 设计风格：暖色轻奢 · 细衬线 · 注册漏斗架构
 * 参考：之禾 ICICLE · 上下 Shang Xia · The Temple House
 * 主色：#f7f4ef 暖白 / #b89a4e 古金 / #1c1814 暖黑
 */

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: #f7f4ef;
  color: #1c1814;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: color 0.2s; }
img { display: block; max-width: 100%; }

/* ─── Color Tokens ─── */
:root {
  --bg:        #f7f4ef;
  --bg-alt:    #ede8e0;
  --bg-dark:   #1c1814;
  --gold:      #b89a4e;
  --gold-light:#d4b96a;
  --ink:       #1c1814;
  --ink-light: #4a4038;
  --ink-muted: #9c8f82;
  --ink-faint: #c8bdb4;
  --border:    #e2dbd0;
  --border-dark:#2e2620;
  --white:     #ffffff;
  /* 深色背景上的文字色 */
  --on-dark:       rgba(247,244,239,0.88);
  --on-dark-muted: rgba(247,244,239,0.55);
  --on-dark-faint: rgba(247,244,239,0.32);
}

/* ─── Typography ─── */
.t-label {
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  display: block;
}

.t-hero {
  font-family: 'Noto Serif SC', serif;
  font-weight: 300;
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  line-height: 1.25;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.t-h2 {
  font-family: 'Noto Serif SC', serif;
  font-weight: 300;
  font-size: clamp(1.625rem, 3vw, 2.5rem);
  line-height: 1.4;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.t-h3 {
  font-family: 'Noto Serif SC', serif;
  font-weight: 400;
  font-size: 1.0625rem;
  letter-spacing: 0.05em;
  color: var(--ink);
  line-height: 1.5;
}

.t-body {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.95;
  letter-spacing: 0.02em;
  color: var(--ink-light);
}

.t-small {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  line-height: 1.85;
}

.t-num {
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  color: var(--gold);
}

/* ─── Layout ─── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
}

.section      { padding: 72px 0; border-top: 1px solid var(--border); }
.section-sm   { padding: 48px 0; border-top: 1px solid var(--border); }
.section-dark { background: var(--bg-dark); }
.section-alt  { background: var(--bg-alt); }

/* ─── Dividers ─── */
.divider {
  width: 32px;
  height: 1px;
  background: var(--gold);
  display: block;
}

.divider-full {
  width: 100%;
  height: 1px;
  background: var(--border);
  display: block;
}

/* ─── Buttons ─── */
.btn-dark {
  display: inline-block;
  padding: 14px 32px;
  background: var(--ink);
  color: #f7f4ef;
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.12em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.3s ease, letter-spacing 0.3s ease, color 0.3s ease;
  white-space: nowrap;
  text-align: center;
}
.btn-dark:hover {
  background: var(--gold);
  letter-spacing: 0.25em;
}

.btn-outline {
  display: inline-block;
  padding: 13px 32px;
  background: transparent;
  color: var(--ink);
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.15em;
  border-radius: 2px;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
  white-space: nowrap;
  text-align: center;
}
.btn-outline:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn-gold-text {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--gold);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
  display: inline-block;
}
.btn-gold-text:hover { border-color: var(--gold); }

/* ─── Card ─── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: box-shadow 0.4s ease, transform 0.4s ease;
}
.card:hover {
  box-shadow: 0 12px 36px rgba(28, 24, 20, 0.07);
  transform: translateY(-3px);
}

.card-dark {
  background: var(--bg-dark);
  border-radius: 4px;
}

.card-gold {
  background: var(--gold);
  border-radius: 4px;
}

/* ─── NAV ─── */
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 239, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-logo-text {
  font-family: 'Noto Serif SC', serif;
  font-weight: 400;
  font-size: 17px;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.nav-sep {
  width: 1px;
  height: 15px;
  background: var(--ink-faint);
}

.nav-city {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--ink-light);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.btn-dark { color: #f7f4ef; }
.nav-links a.btn-dark:hover { color: #f7f4ef; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--ink);
}

.nav-mobile {
  display: none;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 24px 0;
}

.nav-mobile.is-open { display: block; }

.nav-mobile-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-mobile-links a {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--ink-light);
}

/* ─── HERO ─── */
.hero {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}

.hero-eyebrow  { margin-bottom: 32px; }
.hero-title    { margin-bottom: 24px; }
.hero-divider  { margin-bottom: 24px; }
.hero-body     { margin-bottom: 40px; max-width: 42ch; }
.hero-cta      { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-footnote { margin-top: 24px; }

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-card-main { overflow: hidden; }

.hero-card-main .profile-img {
  height: 300px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-card-main .profile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-card-main-body {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px 24px;
}

.stat-card-dark {
  background: var(--bg-dark);
  border-radius: 4px;
  padding: 20px 24px;
}

/* ─── TRUST STRIP ─── */
.trust-strip {
  background: var(--bg-dark);
  padding: 48px 0;
  border-bottom: 1px solid var(--border-dark);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  text-align: center;
  padding: 0 24px;
  border-right: 1px solid var(--border-dark);
}
.trust-item:last-child { border-right: none; }

.trust-num {
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  font-size: 2.25rem;
  color: var(--gold);
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

/* ─── ABOUT ─── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-feature-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 20px;
}
.about-feature-item:first-child { border-top: 1px solid var(--border); }

.about-feature-num {
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  font-size: 1.375rem;
  color: var(--gold);
  line-height: 1;
  padding-top: 3px;
  flex-shrink: 0;
  width: 28px;
}

/* ─── SERVICES ─── */
.services-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 56px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-bottom: 2px;
}

.service-card { padding: 40px 32px; }

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 24px;
}

.service-vip {
  background: var(--gold);
  border-radius: 4px;
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

/* ─── PROFILES ─── */
.profiles-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
}

.profiles-bento {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 16px;
}

.profile-card-tall { grid-row: span 2; overflow: hidden; }

.profile-img {
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.profile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-img-placeholder {
  font-family: 'Noto Serif SC', serif;
  font-weight: 300;
  font-size: 2.5rem;
  color: var(--ink-faint);
}

.profile-card-body { padding: 20px 24px; }

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.profile-tag {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--ink-light);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 2px;
}

.profiles-cta-bar {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 24px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--white);
}

/* ─── REGISTER CTA ─── */
.register-cta { text-align: center; }
.register-cta-inner { max-width: 580px; margin: 0 auto; }
.register-cta .divider { margin: 0 auto 32px; }

/* ─── BLOG ─── */
.blog-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
}

.blog-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  margin-bottom: 16px;
}

.blog-featured-img {
  min-height: 240px;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-featured-body {
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.blog-card { padding: 32px; }

/* ─── CONTACT ─── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.contact-item {
  padding: 0 40px 0 0;
  border-right: 1px solid var(--border);
}
.contact-item:first-child { padding-left: 0; }
.contact-item:last-child { border-right: none; padding-left: 40px; padding-right: 0; }
.contact-item:nth-child(2) { padding: 0 40px; }

/* ─── FAQ ─── */
.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-q {
  font-family: 'Noto Serif SC', serif;
  font-size: 1.0625rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  user-select: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-family: 'EB Garamond', Georgia, serif;
  font-style: italic;
  font-size: 1.5rem;
  color: var(--gold);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}
details[open] .faq-q { color: var(--gold); }
details[open] .faq-q::after { transform: rotate(45deg); }

.faq-a {
  padding: 0 0 24px;
  max-width: 62ch;
  line-height: 1.95;
  color: var(--ink-light);
}

/* ─── FOOTER ─── */
.footer {
  background: var(--bg-dark);
  padding: 64px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  font-weight: 300;
  color: var(--on-dark-muted);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1023px) {
  .container { padding: 0 28px; }
  .hero-grid { gap: 48px; }
  .about-grid { gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 767px) {
  html { font-size: 15px; }
  .container { padding: 0 20px; }
  .section    { padding: 48px 0; }
  .section-sm { padding: 36px 0; }

  /* Nav */
  .nav-links  { display: none; }
  .nav-toggle { display: block; }

  /* Hero */
  .hero { padding: 0; }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 48px;
  }
  .hero-visual { display: none; }
  .hero-eyebrow { margin-bottom: 20px; }
  .hero-body { margin-bottom: 32px; }
  .hero-cta { flex-direction: column; gap: 12px; }
  .hero-cta .btn-dark,
  .hero-cta .btn-outline { width: 100%; padding: 16px 20px; text-align: center; }

  /* Trust */
  .trust-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }
  .trust-item {
    border-right: none;
    border-bottom: 1px solid var(--border-dark);
    padding: 20px 16px;
  }
  .trust-item:nth-child(odd)  { border-right: 1px solid var(--border-dark); }
  .trust-item:nth-child(3),
  .trust-item:nth-child(4)    { border-bottom: none; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 40px; }

  /* Services */
  .services-header { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 32px; }
  .services-grid { grid-template-columns: 1fr; gap: 2px; }
  .service-card { padding: 28px 24px; }
  .service-vip { flex-direction: column; align-items: flex-start; padding: 28px 24px; gap: 24px; }
  .service-vip .btn-dark { width: 100%; text-align: center; }

  /* Profiles */
  .profiles-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .profiles-bento {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }
  .profile-card-tall { grid-row: span 1; }
  .profiles-cta-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
  }
  .profiles-cta-bar .btn-dark { width: 100%; text-align: center; }

  /* Blog */
  .blog-header { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 32px; }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured-img { min-height: 140px; }
  .blog-featured-body { padding: 24px; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-card { padding: 24px; }

  /* Register CTA */
  .register-cta-inner { padding: 0 4px; }
  .register-cta .btn-dark { width: 100%; }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .contact-item,
  .contact-item:last-child,
  .contact-item:nth-child(2) {
    padding: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 24px;
  }
  .contact-item:last-child { border-bottom: none; padding-bottom: 0; }

  /* Footer */
  .footer { padding: 48px 0 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  /* Buttons full width on mobile where needed */
  .about-cta .btn-dark { width: 100%; text-align: center; }
}

@media (max-width: 479px) {
  .profiles-bento { grid-template-columns: 1fr; }
  .hero-stats { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ─── Adult notice ─── */
.footer-adult{font-size:14px;color:var(--on-dark-faint);text-align:center;width:100%}