/* 富爱俱乐部 · 东莞 · style.css */
/* 设计风格：制造精工·极简现代 | 字体变体 C (Noto Sans SC 300 无衬线摩登) */
/* Trust Strip C (深色双列带序号) | Footer A (四列等宽) | 圆角 0px */

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

/* ─── Tokens ─── */
:root {
  --steel: #2c3e50;
  --silver: #8090a0;
  --gold: #9a8c6e;
  --gold-light: #b0a080;
  --bg: #f8f8f8;
  --bg-alt: #f0f0f0;
  --bg-dark: #0a0e12;
  --ink: #0a0e12;
  --ink-light: #2a3040;
  --ink-muted: #788090;
  --ink-faint: #b0bcc8;
  --on-dark: rgba(240,244,248,0.96);
  --on-dark-muted: rgba(180,200,220,0.75);
  --on-dark-faint: rgba(120,150,175,0.5);
  --border: #dcdcdc;
  --border-dark: #141820;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Helvetica Neue', sans-serif;
  --font-num: 'EB Garamond', Georgia, serif;
  --radius: 0px;
  --radius-sm: 0px;
}

/* ─── 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;font-size:16px;line-height:1.95;letter-spacing:0.02em;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(--silver)}
.t-hero{font-family:var(--font-sans);font-size:clamp(2.25rem,5.5vw,4.5rem);font-weight:300;line-height:1.2;letter-spacing:0.02em}
.t-h2{font-family:var(--font-sans);font-size:clamp(1.625rem,3vw,2.5rem);font-weight:300;line-height:1.4;letter-spacing:0.02em}
.t-h3{font-size:18px;font-weight:400;line-height:1.5;letter-spacing:0.02em}
.t-body{font-size:16px;font-weight:300;line-height:1.95;letter-spacing:0.02em}
.t-small{font-size:14px;font-weight:300;line-height:1.85;letter-spacing:0.02em}
.t-num{font-family:var(--font-num);font-style:italic;color:var(--gold)}

/* ─── 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(248,248,248,0.97);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-sans);font-size:16px;font-weight:400;letter-spacing:0.1em;color:var(--ink)}
.nav-logo span{color:var(--silver)}
.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(--steel)}
.nav-cta{display:inline-flex;align-items:center;height:44px;padding:0 24px;background:var(--steel);color:#fff !important;font-size:14px;font-weight:300;letter-spacing:0.12em;transition:background 0.2s}
.nav-cta:hover{background:var(--ink)}
.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 ─── */
/* 左城市大字+统计 | 右内容区 */
.hero-section{padding-top:80px;min-height:100dvh;display:grid;grid-template-columns:0.55fr 1fr;overflow:hidden}
.hero-left{background:var(--steel);display:flex;flex-direction:column;justify-content:flex-end;padding:80px 64px;position:relative;overflow:hidden}
.hero-city-char{position:absolute;top:-40px;left:-20px;font-size:clamp(12rem,24vw,22rem);font-weight:300;color:rgba(255,255,255,0.04);line-height:1;letter-spacing:0;pointer-events:none;font-family:var(--font-sans)}
.hero-left-label{font-size:14px;font-weight:300;letter-spacing:0.28em;color:rgba(255,255,255,0.5);text-transform:uppercase;margin-bottom:32px}
.hero-left-stat{padding-left:20px;border-left:2px solid rgba(255,255,255,0.2);margin-bottom:24px}
.hero-left-stat-num{font-family:var(--font-num);font-style:italic;font-size:clamp(1.75rem,3vw,2.5rem);color:rgba(255,255,255,0.9);line-height:1;margin-bottom:4px}
.hero-left-stat-label{font-size:14px;color:rgba(255,255,255,0.4)}
.hero-right{display:flex;flex-direction:column;justify-content:center;padding:80px 64px;background:var(--bg)}
.hero-eyebrow{display:flex;align-items:center;gap:16px;margin-bottom:32px}
.hero-eyebrow-line{width:32px;height:1px;background:var(--silver)}
.hero-title{margin-bottom:24px}
.hero-title em{color:var(--steel);font-style:normal}
.hero-body{color:var(--ink-light);max-width:44ch;margin-bottom:40px}
.hero-cta{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;height:48px;padding:0 32px;background:var(--steel);color:#fff;font-size:14px;font-weight:300;letter-spacing:0.12em;transition:background 0.2s;white-space:nowrap}
.btn-primary:hover{background:var(--ink)}
.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;transition:border-color 0.2s,color 0.2s}
.btn-ghost:hover{border-color:var(--steel);color:var(--steel)}
.hero-footnote{margin-top:24px;font-size:14px;color:var(--ink-muted)}

/* ─── Trust Strip C — 深色双列带序号 ─── */
.trust-strip{background:var(--bg-dark);padding:64px 0}
.trust-grid-c{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border-dark)}
.trust-item-c{background:var(--bg-dark);padding:40px;position:relative}
.trust-item-c::before{content:attr(data-index);position:absolute;top:24px;right:24px;font-family:var(--font-num);font-style:italic;font-size:14px;color:var(--on-dark-faint)}
.trust-item-c-border{border-top:2px solid var(--silver);padding-top:24px;margin-bottom:16px}
.trust-num-c{font-family:var(--font-num);font-style:italic;font-size:clamp(2rem,3.5vw,2.75rem);color:var(--on-dark);line-height:1;margin-bottom:8px}
.trust-label-c{font-size:14px;color:var(--on-dark-muted);letter-spacing:0.08em;font-weight:300}
.trust-sub-c{font-size:14px;color:var(--on-dark-faint);margin-top:4px}

/* ─── 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:grid;grid-template-columns:40px 1fr;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(--silver);padding-top:2px}
.about-feature-title{font-size:16px;font-weight:400;margin-bottom:6px}
.about-feature-desc{font-size:14px;color:var(--ink-muted)}

/* ─── Services ─── */
.services-section{background:var(--bg-alt)}
.services-header{margin-bottom:48px}
.service-rows{display:flex;flex-direction:column;gap:1px;background:var(--border)}
.service-row{display:grid;grid-template-columns:56px 1fr auto;gap:32px;padding:32px 40px;background:var(--bg-alt);align-items:center;transition:background 0.2s}
.service-row:hover{background:var(--bg)}
.service-row-num{font-family:var(--font-num);font-style:italic;font-size:clamp(1.5rem,2.5vw,2rem);color:var(--silver);line-height:1;text-align:center}
.service-row-title{font-size:18px;font-weight:400;margin-bottom:8px}
.service-row-desc{font-size:14px;color:var(--ink-muted);max-width:52ch}
.service-row-tag{font-size:14px;color:var(--steel);border:1px solid var(--border);padding:4px 12px;white-space:nowrap}
.service-vip{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;background:var(--steel);color:var(--on-dark);padding:40px 48px;margin-top:1px}
.service-vip-text .t-label{color:var(--on-dark-muted)}
.service-vip-title{font-family:var(--font-sans);font-size:clamp(1.25rem,2vw,1.625rem);font-weight:300;color:var(--on-dark);margin:12px 0}
.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:rgba(255,255,255,0.1);border:1px solid rgba(255,255,255,0.2);color:var(--on-dark);font-size:14px;letter-spacing:0.12em;white-space:nowrap;transition:background 0.2s}
.service-vip-cta:hover{background:rgba(255,255,255,0.2)}

/* ─── Profiles ─── */
/* 等高四列 */
.profiles-section{}
.profiles-header{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:48px}
.profiles-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.profile-card{background:var(--bg-alt);border:1px solid var(--border);overflow:hidden}
.profile-img-wrap{height:260px;background:var(--bg-alt);position:relative;overflow:hidden}
.profile-img-wrap img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform 0.4s}
.profile-card:hover .profile-img-wrap img{transform:scale(1.03)}
.profile-body{padding:20px 24px}
.profile-name{font-size:16px;font-weight:400;margin-bottom:4px}
.profile-sub{font-size:14px;color:var(--ink-muted)}
.profile-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.profile-tag{font-size:14px;color:var(--ink-muted);border:1px solid var(--border);padding:2px 10px}
.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}
.profiles-cta-bar p{font-size:14px;color:var(--ink-muted)}
.profiles-cta-bar p strong{color:var(--ink)}

/* ─── Register CTA ─── */
.cta-section{background:var(--ink);text-align:center;padding:96px 0}
.cta-section .t-label{color:var(--silver);margin-bottom:16px}
.cta-title{font-family:var(--font-sans);font-size:clamp(1.75rem,3.5vw,3rem);font-weight:300;color:var(--on-dark);margin-bottom:24px}
.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(--steel);color:#fff;font-size:14px;font-weight:300;letter-spacing:0.12em;transition:background 0.2s}
.btn-cta:hover{background:var(--silver)}
.btn-cta-outline{display:inline-flex;align-items:center;height:52px;padding:0 32px;border:1px solid rgba(180,200,220,0.3);color:var(--on-dark-muted);font-size:14px;letter-spacing:0.06em;transition:border-color 0.2s}
.btn-cta-outline:hover{border-color:var(--silver);color:var(--on-dark)}

/* ─── Blog ─── */
.blog-section{}
.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);padding:32px;display:flex;flex-direction:column;transition:border-color 0.2s}
.blog-card:hover{border-color:var(--steel)}
.blog-card-tag{font-size:14px;color:var(--silver);letter-spacing:0.12em;margin-bottom:16px}
.blog-card-title{font-size:18px;font-weight:400;line-height:1.5;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:400;color:var(--ink);transition:color 0.2s;gap:16px}
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(--steel);flex-shrink:0;transition:transform 0.3s}
details.faq-item[open] summary{color:var(--steel)}
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 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;padding-bottom:48px;border-bottom:1px solid var(--border-dark)}
.footer-brand-name{font-family:var(--font-sans);font-size:16px;font-weight:400;color:var(--on-dark);letter-spacing:0.1em;margin-bottom:12px}
.footer-brand-name span{color:var(--silver)}
.footer-brand-desc{font-size:14px;color:var(--on-dark-muted);line-height:1.85}
.footer-col-title{font-size:14px;font-weight:400;color:var(--on-dark);letter-spacing:0.1em;margin-bottom:20px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--on-dark-muted);transition:color 0.2s}
.footer-links a:hover{color:var(--on-dark)}
.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{grid-template-columns:1fr;min-height:auto}
  .hero-left{display:none}
  .hero-right{padding:100px 20px 56px}
  .about-grid{grid-template-columns:1fr;gap:48px}
  .profiles-grid{grid-template-columns:repeat(2,1fr)}
  .blog-grid{grid-template-columns:1fr 1fr}
  .footer-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}
  .trust-grid-c{grid-template-columns:1fr}
  .service-row{grid-template-columns:40px 1fr}
  .service-row-tag{display:none}
  .service-vip{grid-template-columns:1fr;gap:24px}
  .profiles-grid{grid-template-columns:1fr 1fr}
  .profiles-cta-bar{flex-direction:column;gap:16px;text-align:center;padding:24px}
  .blog-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;gap:8px}
  .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}
  .blog-header{flex-direction:column;align-items:flex-start;gap:16px}
}