/* 富爱俱乐部 · 天津 · style.css */
/* 设计风格：租界复古·民国海派 — 砖红+旧金+米白，细衬线雅奢 */

/* ─── 字体 ─── */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400&family=Noto+Sans+SC:wght@300;400&family=EB+Garamond:ital,wght@1,400&display=swap');

:root {
  /* ── 主题色 ── */
  --accent:        #9b3e28;
  --accent-light:  #c05a3a;
  --accent-dark:   #6e2815;
  --gold:          #c9a84c;
  --gold-light:    #e0c878;
  --gold-dark:     #a07830;

  /* ── 背景层次 ── */
  --bg:            #f5f0e8;
  --bg-alt:        #ede6d5;
  --bg-dark:       #231508;

  /* ── 文字层次 ── */
  --ink:           #1e120a;
  --ink-light:     #4a2e1a;
  --ink-muted:     #8a6650;
  --ink-faint:     #c8b0a0;

  /* ── 深色区文字 ── */
  --on-dark:       rgba(245,240,232,0.92);
  --on-dark-muted: rgba(245,240,232,0.60);
  --on-dark-faint: rgba(245,240,232,0.32);

  /* ── 描边 ── */
  --border:        #d8c8b0;
  --border-dark:   #3a2418;

  /* ── 圆角 ── */
  --radius:        4px;
  --radius-sm:     2px;
  --radius-lg:     6px;

  /* ── 字体 ── */
  --font-serif:  'Noto Serif SC', 'STSong', Georgia, serif;
  --font-sans:   'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-number: 'EB Garamond', Georgia, serif;
}

/* ─── Reset ─── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-weight: 300;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
}
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── 容器 ─── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
}
.section {
  padding: 96px 0;
}

/* ─── 排版工具类 ─── */
.t-label {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
}
.t-hero {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5.5vw, 4.5rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: 0.06em;
}
.t-h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 3vw, 2.5rem);
  font-weight: 300;
  line-height: 1.35;
  letter-spacing: 0.06em;
}
.t-h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.04em;
}
.t-body {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.95;
  letter-spacing: 0.02em;
}
.t-small {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.85;
  letter-spacing: 0.02em;
}
.t-num {
  font-family: var(--font-number);
  font-style: italic;
  color: var(--gold);
  line-height: 1;
}

/* ─── Nav ─── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(245,240,232,0.96);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
#navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px rgba(30,18,10,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.nav-logo span { color: var(--gold); }
.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}
.nav-links a {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--ink-light);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--accent); }
.btn-nav {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 20px;
  background: var(--accent);
  color: #fff !important;
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.12em;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}
.btn-nav:hover { background: var(--accent-light); }

/* Mobile toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 16px 0 24px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: 12px 40px;
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--ink-light);
  border-bottom: 1px solid var(--border);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile .btn-mobile-cta {
  margin: 16px 40px 0;
  text-align: center;
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--radius-sm);
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.12em;
}

/* ─── Hero — 民国海报居中·双边框装饰 ─── */
.hero-section {
  padding: 140px 0 96px;
  background: var(--bg);
  overflow: hidden;
  position: relative;
}
/* Decorative background watermark */
.hero-section::before {
  content: '津';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-serif);
  font-size: clamp(20rem, 40vw, 36rem);
  font-weight: 300;
  color: rgba(155,62,40,0.03);
  letter-spacing: 0;
  line-height: 1;
  pointer-events: none;
  z-index: 0;
  white-space: nowrap;
}
.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
/* Art Deco double-border frame */
.hero-frame {
  position: relative;
  padding: 64px 72px;
  border: 1px solid var(--gold);
}
.hero-frame::before {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201,168,76,0.4);
  pointer-events: none;
}
/* Corner ornaments */
.hero-frame::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(201,168,76,0.15);
  pointer-events: none;
}
.hero-label {
  margin-bottom: 32px;
}
.hero-title {
  color: var(--ink);
  margin-bottom: 32px;
}
.hero-title .title-accent {
  color: var(--accent);
}
.hero-body {
  color: var(--ink-light);
  max-width: 44ch;
  margin: 0 auto 40px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 32px;
  background: var(--accent);
  color: var(--bg);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.12em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  box-shadow: 0 4px 20px rgba(155,62,40,0.25);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 32px;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.12em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold-dark);
}
/* Stats row below hero frame */
.hero-stats {
  display: flex;
  justify-content: center;
  margin-top: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.hero-stat-item {
  flex: 1;
  padding: 24px 16px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.hero-stat-item:last-child { border-right: none; }
.hero-stat-num {
  font-family: var(--font-number);
  font-style: italic;
  font-size: 2.25rem;
  color: var(--gold);
  line-height: 1;
  display: block;
}
.hero-stat-label {
  font-size: 14px;
  font-weight: 300;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  margin-top: 6px;
  display: block;
}

/* ─── Trust Strip A — 深色暗金格栅 ─── */
.trust-strip {
  background: var(--bg-dark);
  padding: 48px 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.trust-item {
  padding: 0 24px;
  text-align: center;
  border-right: 1px solid var(--border-dark);
}
.trust-item:first-child { padding-left: 0; }
.trust-item:last-child  { padding-right: 0; border-right: none; }
.trust-num {
  font-family: var(--font-number);
  font-style: italic;
  font-size: 2.5rem;
  color: var(--gold);
  line-height: 1;
  display: block;
}
.trust-label {
  font-size: 14px;
  font-weight: 300;
  color: var(--on-dark-muted);
  letter-spacing: 0.04em;
  margin-top: 8px;
  display: block;
}

/* ─── About — 顶部大段文字 + 下方2×2特点格 ─── */
.about-section { background: var(--bg-alt); }
.about-top {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  margin-bottom: 64px;
}
.about-top .t-label { margin-bottom: 24px; }
.about-top .t-h2   { color: var(--ink); margin-bottom: 32px; }
.about-top .t-body { color: var(--ink-light); }
.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
}
.about-feat {
  background: var(--bg-alt);
  padding: 40px 40px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.about-feat-num {
  font-family: var(--font-number);
  font-style: italic;
  font-size: 2rem;
  color: var(--gold);
  line-height: 1;
  flex-shrink: 0;
}
.about-feat-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: 8px;
}
.about-feat-text {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.85;
  color: var(--ink-light);
  letter-spacing: 0.02em;
}

/* ─── Services — 两大卡+底部VIP ─── */
.services-section { background: var(--bg); }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .t-label { margin-bottom: 16px; }
.section-header .t-h2   { color: var(--ink); }
.services-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.service-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
}
.service-card-num {
  font-family: var(--font-number);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 16px;
  display: block;
}
.service-card .t-h3  { color: var(--ink); margin-bottom: 16px; }
.service-card .t-body { color: var(--ink-light); margin-bottom: 24px; }
.service-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 24px;
}
.service-list li {
  font-size: 14px;
  font-weight: 300;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  padding-left: 16px;
  position: relative;
}
.service-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold);
}
.service-vip {
  background: var(--bg-dark);
  border-radius: var(--radius);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.service-vip-text .t-label { margin-bottom: 12px; }
.service-vip-text .t-h3   { color: var(--on-dark); margin-bottom: 12px; }
.service-vip-text .t-small { color: var(--on-dark-muted); max-width: 44ch; }
.btn-gold {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 32px;
  background: var(--gold);
  color: var(--bg-dark);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.12em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gold);
  transition: background 0.2s ease;
  flex-shrink: 0;
}
.btn-gold:hover { background: var(--gold-light); }

/* ─── Profiles — 两列等高 ─── */
.profiles-section { background: var(--bg-alt); }
.profiles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.profile-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  gap: 0;
}
.profile-img-wrap {
  width: 120px;
  flex-shrink: 0;
  height: 160px;
  background: var(--bg-alt);
  overflow: hidden;
}
.profile-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.profile-body {
  padding: 20px 24px;
  flex: 1;
}
.profile-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: 4px;
}
.profile-meta {
  font-size: 14px;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.profile-tag {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
}
.profiles-cta-bar {
  margin-top: 40px;
  padding: 24px 40px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.profiles-cta-text { color: var(--ink-light); font-size: 16px; letter-spacing: 0.02em; }
.profiles-cta-text strong { color: var(--accent); font-weight: 400; }

/* ─── Register CTA ─── */
.register-section {
  background: var(--bg-dark);
  padding: 80px 0;
  text-align: center;
}
.register-section .t-label { margin-bottom: 24px; }
.register-section .t-h2 { color: var(--on-dark); margin-bottom: 24px; }
.register-section .t-body { color: var(--on-dark-muted); max-width: 44ch; margin: 0 auto 40px; }

/* ─── Blog ─── */
.blog-section { background: var(--bg); }
.blog-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 48px;
}
.blog-header .t-label { margin-bottom: 8px; }
.btn-link {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--gold-dark);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
  transition: color 0.2s ease;
}
.btn-link:hover { color: var(--accent); border-color: var(--accent); }
/* Blog: variant C — 横向列表+缩略图 */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
}
.blog-row {
  display: flex;
  gap: 0;
  background: var(--bg);
  transition: background 0.2s ease;
}
.blog-row:hover { background: var(--bg-alt); }
.blog-row-thumb {
  width: 160px;
  flex-shrink: 0;
  height: 110px;
  background: var(--bg-alt);
  overflow: hidden;
}
.blog-row-thumb img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.2); }
.blog-row-body {
  flex: 1;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.blog-row-date {
  font-size: 14px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.blog-row-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 8px;
  transition: color 0.2s ease;
}
.blog-row:hover .blog-row-title { color: var(--accent); }
.blog-row-excerpt {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.7;
  letter-spacing: 0.02em;
}

/* ─── FAQ ─── */
.faq-section { background: var(--bg-alt); }
.faq-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-top: 48px;
}
.faq-item {
  background: var(--bg-alt);
}
details.faq-item {
  border: none;
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  transition: color 0.2s ease;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: '+';
  font-family: var(--font-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(--accent); }
details[open] .faq-q::after { transform: rotate(45deg); }
.faq-a {
  padding: 0 28px 24px;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--ink-light);
}

/* ─── Footer A — 四列等宽 ─── */
.footer {
  background: var(--bg-dark);
  padding: 64px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--on-dark);
  margin-bottom: 12px;
}
.footer-logo span { color: var(--gold); }
.footer-desc {
  font-size: 14px;
  font-weight: 300;
  color: var(--on-dark-muted);
  line-height: 1.85;
  letter-spacing: 0.02em;
}
.footer-col-title {
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--on-dark-faint);
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 14px;
  font-weight: 300;
  color: var(--on-dark-muted);
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}
.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;
  gap: 16px;
}
.footer-copy {
  font-size: 14px;
  color: var(--on-dark-faint);
  letter-spacing: 0.02em;
}

/* ─── Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ─── 响应式 ─── */
@media (max-width: 1023px) {
  .hero-frame { padding: 48px 40px; }
  .about-features { grid-template-columns: 1fr; }
  .services-duo { grid-template-columns: 1fr; }
  .profiles-grid { grid-template-columns: 1fr; }
  .faq-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .hero-section { padding: 100px 0 64px; }
  .hero-frame { padding: 40px 24px; }
  .hero-stats { flex-wrap: wrap; }
  .hero-stat-item { flex: 1 1 45%; }
  .trust-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border-dark);
  }
  .trust-item {
    padding: 24px;
    border-right: none;
    text-align: center;
  }
  .service-vip {
    flex-direction: column;
    text-align: center;
  }
  .service-vip .btn-gold { width: 100%; justify-content: center; }
  .profile-card { flex-direction: column; }
  .profile-img-wrap { width: 100%; height: 200px; }
  .profiles-cta-bar { flex-direction: column; text-align: center; }
  .profiles-cta-bar .btn-primary { width: 100%; justify-content: center; }
  .blog-row-thumb { width: 100px; height: 90px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-cta .btn-primary,
  .hero-cta .btn-outline { width: 100%; justify-content: center; }
  .register-section .btn-primary { width: 100%; justify-content: center; }
}
@media (max-width: 479px) {
  .t-hero { font-size: 2rem; }
  .hero-frame { padding: 32px 16px; border: none; }
  .hero-frame::before, .hero-frame::after { display: none; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

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