/* 富爱俱乐部 · 芜湖 · style.css */
/* 设计风格：皖南墨韵·徽派留白 | 字体变体 A (Noto Serif SC 300 细衬线雅奢) */
/* Trust Strip D (浅色品牌侧边) | Footer D (居中极简) | 圆角 3px */

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

/* ─── Tokens ─── */
:root {
  --ink-deep: #1a1410;
  --ochre: #8a5a28;
  --ochre-light: #aa7a48;
  --paper: #f5f0e8;
  --paper-alt: #ede6d8;
  --bg: #f8f4ec;
  --bg-alt: #f0ebe0;
  --bg-dark: #120e08;
  --ink: #1a1410;
  --ink-light: #2a2018;
  --ink-muted: #6a5040;
  --ink-faint: #b09880;
  --on-dark: rgba(248,240,228,0.96);
  --on-dark-muted: rgba(200,175,140,0.75);
  --on-dark-faint: rgba(140,110,70,0.48);
  --border: #d8ccb8;
  --border-dark: #1e1810;
  --font-serif: 'Noto Serif SC', 'STSong', Georgia, serif;
  --font-num: 'EB Garamond', Georgia, serif;
  --radius: 3px;
  --radius-sm: 2px;
}

/* ─── 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-serif);font-weight:300;font-size:16px;line-height:1.95;letter-spacing:0.06em;color:var(--ink);background:var(--bg);overflow-x:hidden}
img{display:block;width:100%;height:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}

/* ─── Typography ─── */
.t-label{font-size:14px;font-weight:300;letter-spacing:0.28em;text-transform:uppercase;color:var(--ochre)}
.t-hero{font-family:var(--font-serif);font-size:clamp(2.25rem,5.5vw,4.5rem);font-weight:300;line-height:1.25;letter-spacing:0.06em}
.t-h2{font-family:var(--font-serif);font-size:clamp(1.625rem,3vw,2.5rem);font-weight:300;line-height:1.4;letter-spacing:0.06em}
.t-h3{font-size:18px;font-weight:300;line-height:1.5;letter-spacing:0.06em}
.t-body{font-size:16px;font-weight:300;line-height:1.95;letter-spacing:0.04em}
.t-small{font-size:14px;font-weight:300;line-height:1.85;letter-spacing:0.04em}
.t-num{font-family:var(--font-num);font-style:italic;color:var(--ochre)}

/* ─── Layout ─── */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}

/* ─── Reveal ─── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity 0.7s ease,transform 0.7s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ─── Navbar ─── */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:transparent;transition:background 0.3s,border-bottom 0.3s}
.navbar.scrolled{background:rgba(248,244,236,0.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:20px 0}
.nav-logo{font-family:var(--font-serif);font-size:16px;font-weight:300;letter-spacing:0.1em;color:var(--ink)}
.nav-logo span{color:var(--ochre)}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:14px;font-weight:300;letter-spacing:0.06em;color:var(--ink-light);transition:color 0.2s}
.nav-links a:hover{color:var(--ochre)}
.nav-cta{display:inline-flex;align-items:center;height:44px;padding:0 24px;background:var(--ink);color:#fff !important;font-size:14px;font-weight:300;letter-spacing:0.12em;border-radius:var(--radius);transition:background 0.2s}
.nav-cta:hover{background:var(--ochre)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.nav-toggle span{display:block;width:22px;height:1px;background:var(--ink);transition:all 0.3s}
.nav-mobile{display:none}

/* ─── Hero — 徽派留白·居中水墨 ─── */
/* 大面积留白 + 细墨线 + 大字水印 + 居中文字 */
.hero-section{padding-top:80px;min-height:100dvh;display:flex;align-items:center;position:relative;overflow:hidden}
.hero-section::before{content:'芜湖';font-family:var(--font-serif);font-size:clamp(16rem,32vw,30rem);font-weight:300;color:rgba(26,20,16,0.03);position:absolute;right:-60px;top:50%;transform:translateY(-50%);z-index:0;line-height:1;letter-spacing:0;pointer-events:none}
/* 徽派线条 — 顶部细竖线 */
.hero-section::after{content:'';position:absolute;left:50%;top:80px;width:1px;height:80px;background:linear-gradient(to bottom,transparent,var(--ochre),transparent);opacity:0.4;z-index:0}
.hero-inner{width:100%;position:relative;z-index:1}
.hero-container{max-width:700px;margin:0 auto;text-align:center;padding:0 40px}
.hero-eyebrow{display:flex;align-items:center;justify-content:center;gap:20px;margin-bottom:40px}
.hero-eyebrow-line{width:32px;height:1px;background:var(--ochre);opacity:0.5}
.hero-title{margin-bottom:28px}
.hero-title em{color:var(--ochre);font-style:normal}
.hero-body{color:var(--ink-light);margin-bottom:40px}
.hero-cta{display:flex;gap:16px;align-items:center;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.btn-primary{display:inline-flex;align-items:center;height:48px;padding:0 32px;background:var(--ink);color:var(--on-dark);font-size:14px;font-weight:300;letter-spacing:0.12em;border-radius:var(--radius);transition:background 0.2s;white-space:nowrap}
.btn-primary:hover{background:var(--ochre)}
.btn-ghost{display:inline-flex;align-items:center;height:48px;padding:0 24px;border:1px solid var(--border);color:var(--ink-light);font-size:14px;font-weight:300;letter-spacing:0.06em;border-radius:var(--radius);transition:border-color 0.2s,color 0.2s}
.btn-ghost:hover{border-color:var(--ochre);color:var(--ochre)}
/* 底部三格统计 */
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--border);margin-top:0}
.hero-stat-item{padding:24px 0;text-align:center;border-right:1px solid var(--border)}
.hero-stat-item:last-child{border-right:none}
.hero-stat-num{font-family:var(--font-num);font-style:italic;font-size:clamp(1.75rem,3vw,2.5rem);color:var(--ochre);line-height:1;margin-bottom:6px}
.hero-stat-label{font-size:14px;color:var(--ink-muted)}

/* ─── Trust Strip D — 浅色品牌侧边 ─── */
.trust-strip{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:64px 0}
.trust-sidebar{display:grid;grid-template-columns:1.4fr 1fr;gap:80px;align-items:center}
.trust-brand-statement{font-family:var(--font-serif);font-size:clamp(1.25rem,2vw,1.75rem);font-weight:300;line-height:1.6;letter-spacing:0.06em;color:var(--ink-light)}
.trust-brand-statement em{color:var(--ochre);font-style:normal}
.trust-brand-sub{margin-top:20px;font-size:14px;color:var(--ink-muted);letter-spacing:0.04em}
.trust-brand-link{display:inline-flex;align-items:center;margin-top:24px;font-size:14px;color:var(--ochre);letter-spacing:0.06em;border-bottom:1px solid var(--border);padding-bottom:2px;transition:border-color 0.2s}
.trust-brand-link:hover{border-color:var(--ochre)}
.trust-nums{display:flex;flex-direction:column;gap:0}
.trust-num-item{display:flex;align-items:baseline;gap:16px;padding:24px 0;border-bottom:1px solid var(--border)}
.trust-num-item:last-child{border-bottom:none}
.trust-num-item .t-num{font-size:clamp(2rem,3vw,2.5rem);flex-shrink:0}
.trust-num-label{font-size:14px;color:var(--ink-muted)}
.trust-num-sub{font-size:13px;color:var(--ink-faint)}

/* ─── About ─── */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.about-header{margin-bottom:32px}
.about-body{color:var(--ink-light)}
.about-body p{margin-bottom:20px;max-width:44ch}
.about-features{display:flex;flex-direction:column}
.about-feature-item{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--border)}
.about-feature-item:first-child{border-top:1px solid var(--border)}
.about-feature-num{font-family:var(--font-num);font-style:italic;font-size:18px;color:var(--ochre);flex-shrink:0;padding-top:2px}
.about-feature-title{font-size:16px;font-weight:300;margin-bottom:6px;letter-spacing:0.06em}
.about-feature-desc{font-size:14px;color:var(--ink-muted)}

/* ─── Services ─── */
.services-section{background:var(--bg-alt)}
.services-header{margin-bottom:48px}
.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:16px}
.service-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:40px 32px}
.service-card-num{font-family:var(--font-num);font-style:italic;font-size:2.5rem;color:var(--ochre);opacity:0.15;line-height:1;margin-bottom:16px}
.service-card-title{font-size:18px;font-weight:300;letter-spacing:0.06em;margin-bottom:12px}
.service-card-desc{font-size:14px;color:var(--ink-muted);line-height:1.85}
.service-vip{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;background:var(--ink);color:var(--on-dark);padding:40px 48px;border-radius:var(--radius)}
.service-vip-text .t-label{color:var(--on-dark-muted)}
.service-vip-title{font-family:var(--font-serif);font-size:clamp(1.25rem,2vw,1.625rem);font-weight:300;color:var(--on-dark);margin:12px 0;letter-spacing:0.06em}
.service-vip-desc{font-size:14px;color:var(--on-dark-muted);max-width:48ch}
.service-vip-cta{display:inline-flex;align-items:center;height:48px;padding:0 32px;background:var(--ochre);color:var(--on-dark);font-size:14px;letter-spacing:0.12em;border-radius:var(--radius);white-space:nowrap;transition:background 0.2s;font-weight:300}
.service-vip-cta:hover{background:var(--ochre-light)}

/* ─── Profiles ─── */
.profiles-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:48px}
.profiles-bento{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:280px 200px;gap:16px}
.profile-card{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative}
.profile-card-wide{grid-column:span 2}
.profile-card-tall{grid-row:span 2}
.profile-img-wrap{position:absolute;inset:0;overflow:hidden}
.profile-img-wrap img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform 0.5s}
.profile-card:hover .profile-img-wrap img{transform:scale(1.04)}
.profile-body{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,rgba(18,14,8,0.88) 0%,transparent 100%);padding:20px 24px;color:var(--on-dark)}
.profile-name{font-size:16px;font-weight:300;letter-spacing:0.06em;margin-bottom:2px}
.profile-sub{font-size:14px;color:var(--on-dark-muted)}
.profile-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.profile-tag{font-size:14px;color:var(--on-dark-faint);border:1px solid rgba(140,110,70,0.25);padding:2px 8px;border-radius:var(--radius-sm)}
.profiles-cta-bar{display:flex;justify-content:space-between;align-items:center;padding:24px 40px;background:var(--bg-alt);border:1px solid var(--border);margin-top:16px;border-radius:var(--radius)}
.profiles-cta-bar p{font-size:14px;color:var(--ink-muted)}
.profiles-cta-bar p strong{color:var(--ink)}

/* ─── CTA ─── */
.cta-section{background:var(--bg-dark);text-align:center;padding:96px 0}
.cta-section .t-label{color:var(--ochre-light);margin-bottom:16px}
.cta-title{font-family:var(--font-serif);font-size:clamp(1.75rem,3.5vw,3rem);font-weight:300;color:var(--on-dark);margin-bottom:24px;letter-spacing:0.06em}
.cta-body{font-size:16px;color:var(--on-dark-muted);max-width:44ch;margin:0 auto 40px}
.cta-group{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-cta{display:inline-flex;align-items:center;height:52px;padding:0 40px;background:var(--ochre);color:var(--on-dark);font-size:14px;font-weight:300;letter-spacing:0.12em;border-radius:var(--radius);transition:background 0.2s}
.btn-cta:hover{background:var(--ochre-light)}
.btn-cta-outline{display:inline-flex;align-items:center;height:52px;padding:0 32px;border:1px solid rgba(140,110,70,0.3);color:var(--on-dark-muted);font-size:14px;letter-spacing:0.06em;border-radius:var(--radius);transition:border-color 0.2s}
.btn-cta-outline:hover{border-color:var(--ochre-light);color:var(--ochre-light)}

/* ─── Blog ─── */
.blog-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:48px}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.blog-card{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;transition:border-color 0.2s}
.blog-card:hover{border-color:var(--ochre)}
.blog-card-tag{font-size:14px;color:var(--ochre);letter-spacing:0.12em;margin-bottom:16px}
.blog-card-title{font-size:18px;font-weight:300;line-height:1.5;letter-spacing:0.04em;margin-bottom:12px;flex:1}
.blog-card-meta{font-size:14px;color:var(--ink-muted);margin-top:24px;display:flex;justify-content:space-between}

/* ─── FAQ ─── */
.faq-section{background:var(--bg-alt)}
.faq-header{margin-bottom:48px}
.faq-list{display:flex;flex-direction:column;gap:1px;background:var(--border)}
.faq-item{background:var(--bg)}
details.faq-item summary{display:flex;justify-content:space-between;align-items:center;padding:24px 32px;cursor:pointer;list-style:none;font-size:16px;font-weight:300;color:var(--ink);transition:color 0.2s;gap:16px;letter-spacing:0.04em}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{content:'+';font-family:var(--font-num);font-style:normal;font-size:20px;color:var(--ochre);flex-shrink:0;transition:transform 0.3s}
details.faq-item[open] summary{color:var(--ochre)}
details.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 32px 24px;color:var(--ink-muted);font-size:14px;line-height:1.85;max-width:64ch}

/* ─── Footer D — 居中极简 ─── */
.footer{background:var(--bg-dark);padding:64px 0 40px}
.footer-center{text-align:center;padding-bottom:48px;border-bottom:1px solid var(--border-dark)}
.footer-brand-name{font-family:var(--font-serif);font-size:16px;font-weight:300;color:var(--on-dark);letter-spacing:0.1em;margin-bottom:16px}
.footer-brand-name span{color:var(--ochre-light)}
.footer-brand-desc{font-size:14px;color:var(--on-dark-muted);max-width:44ch;margin:0 auto 32px;line-height:1.85;letter-spacing:0.04em}
.footer-nav-row{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.footer-nav-row a{font-size:14px;font-weight:300;color:var(--on-dark-muted);transition:color 0.2s;letter-spacing:0.06em}
.footer-nav-row a:hover{color:var(--ochre-light)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:32px;flex-wrap:wrap;gap:8px}
.footer-copy{font-size:14px;color:var(--on-dark-faint)}
.footer-adult{font-size:14px;color:var(--on-dark-faint);text-align:center;width:100%}

/* ─── Mobile Nav ─── */
@media(max-width:767px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-mobile{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg);z-index:99;padding:80px 40px 40px;flex-direction:column;gap:0}
  .nav-mobile.open{display:flex}
  .nav-mobile a{font-size:18px;font-weight:300;letter-spacing:0.06em;color:var(--ink);padding:20px 0;border-bottom:1px solid var(--border)}
  .nav-mobile .nav-cta{margin-top:32px;width:100%;justify-content:center}
}

/* ─── Responsive ─── */
@media(max-width:1024px){
  .hero-section{min-height:auto;padding-bottom:64px}
  .hero-section::after{display:none}
  .trust-sidebar{grid-template-columns:1fr;gap:48px}
  .about-grid{grid-template-columns:1fr;gap:48px}
  .service-cards{grid-template-columns:1fr 1fr}
  .profiles-bento{grid-template-columns:repeat(2,1fr);grid-template-rows:auto}
  .profile-card-wide,.profile-card-tall{grid-column:auto;grid-row:auto}
  .profile-img-wrap{position:relative;height:240px}
  .profile-body{position:relative;padding:16px;background:none;color:var(--ink)}
  .profile-name,.profile-sub{color:var(--ink)}
  .profile-tag{color:var(--ink-muted);border-color:var(--border)}
  .blog-grid{grid-template-columns:1fr 1fr}
}

@media(max-width:767px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .t-hero{font-size:2rem}
  .t-h2{font-size:1.5rem}
  body{font-size:14px}
  /* Hero stats — 2×2 */
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-stat-item:nth-child(3){grid-column:1 / -1;border-right:none;border-top:1px solid var(--border)}
  /* Trust Strip D — stack */
  .trust-sidebar{grid-template-columns:1fr}
  .trust-nums{display:grid;grid-template-columns:1fr 1fr;gap:0}
  .trust-num-item{padding:16px 8px;border-bottom:none;border-right:1px solid var(--border)}
  .trust-num-item:nth-child(even){border-right:none}
  .trust-num-item:nth-child(n+3){border-top:1px solid var(--border)}
  /* Services */
  .service-cards{grid-template-columns:1fr}
  .service-vip{grid-template-columns:1fr;gap:24px;padding:24px}
  /* Profiles */
  .profiles-bento{grid-template-columns:1fr}
  .profiles-cta-bar{flex-direction:column;gap:16px;text-align:center;padding:24px}
  /* Blog */
  .blog-grid{grid-template-columns:1fr}
  .blog-header{flex-direction:column;align-items:flex-start;gap:16px}
  /* Footer */
  .footer-nav-row{gap:16px}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;gap:8px}
  /* CTA & Buttons */
  .cta-group{flex-direction:column;align-items:center}
  .btn-cta,.btn-cta-outline,.btn-primary,.btn-ghost{width:100%;justify-content:center}
  .profiles-header{flex-direction:column;align-items:flex-start;gap:16px}
}