/* =============================================
   168pc28.com — 🥚 金蛋星球 · Golden Egg Premium
   纯金生辉 · 暖金深邃 · 全新视觉体系
   ============================================= */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;700;800;900&family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans SC','Inter','PingFang SC','Microsoft YaHei',sans-serif;
  background:#0d0a04;color:rgba(245,230,200,.88);line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

:root{
  --gold:#D4AF37;
  --gold-light:#F5D061;
  --gold-dark:#B8962A;
  --gold-glow:rgba(212,175,55,.2);
  --gold-dim:rgba(212,175,55,.08);
  --coral:#E85D3A;
  --coral-light:#F06E4A;
  --bg:#0d0a04;
  --bg-card:#1a1207;
  --bg-card2:#22190C;
  --bg-section:#0f0c06;
  --text-primary:rgba(245,230,200,.92);
  --text-body:rgba(245,230,200,.72);
  --text-muted:rgba(245,230,200,.45);
  --border:rgba(212,175,55,.12);
  --shadow:0 6px 20px rgba(0,0,0,.5);
  --shadow-glow:0 8px 30px rgba(212,175,55,.12);
  --radius:8px;
  --radius-lg:14px;
  --radius-xl:20px;
  --nav-height:64px;
  --container:1200px;
}

.container{width:92%;max-width:var(--container);margin:0 auto}
@media(min-width:640px){.container{width:90%}}

/* ---- Typography ---- */
.display-title{font-family:'Playfair Display',serif;font-weight:800}
.sans{font-family:'Inter','Noto Sans SC',sans-serif}
.gold-grad{background:linear-gradient(135deg,var(--gold) 10%,var(--gold-light) 50%,var(--gold) 90%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.gold-text{color:var(--gold-light)}
.coral-text{color:var(--coral)}
.text-center{text-align:center}
.reveal{opacity:0;transform:translateY(24px);transition:all .55s}.reveal.show{opacity:1;transform:translateY(0)}

/* ---- Scrollbar ---- */
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--gold-dim);border-radius:2px}
::-webkit-scrollbar-thumb:hover{background:var(--gold)}

/* ---- Grids ---- */
.grid-2{display:grid;grid-template-columns:1fr;gap:1.2rem}
.grid-3{display:grid;grid-template-columns:1fr;gap:1.2rem}
.grid-4{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(min-width:640px){.grid-4{grid-template-columns:repeat(4,1fr)}}
@media(min-width:768px){
  .grid-2{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr 1fr}
}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.65rem 1.6rem;border-radius:50px;text-decoration:none;font-weight:700;
  font-size:.88rem;border:none;cursor:pointer;transition:all .3s;letter-spacing:.02em;
}
.btn-primary{
  background:linear-gradient(135deg,var(--gold-dark),var(--gold),var(--gold-light));
  color:#1a1207;box-shadow:0 4px 14px var(--gold-glow);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(212,175,55,.35)}
.btn-outline{
  background:transparent;color:var(--gold-light);
  border:1.5px solid var(--gold);backdrop-filter:blur(4px);
}
.btn-outline:hover{background:rgba(212,175,55,.08);transform:translateY(-3px)}
.btn-sm{padding:.45rem 1.1rem;font-size:.78rem}
.btn-lg{padding:.8rem 2rem;font-size:.95rem}
.btn-block{width:100%;text-align:center}
.btn-cursor{cursor:default !important}

/* ---- Header ---- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(13,10,4,.88);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;height:var(--nav-height)}
.nav-brand{font-size:1.2rem;font-weight:800;text-decoration:none}
.nav-brand .brand-gold{font-family:'Playfair Display',serif;font-weight:900;font-size:1.3rem}
.nav-links{display:none;list-style:none;gap:.25rem}
@media(min-width:768px){.nav-links{display:flex}}
.nav-links a{
  text-decoration:none;color:var(--text-muted);font-weight:500;font-size:.8rem;
  padding:.35rem .7rem;border-radius:20px;transition:all .25s;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold-light);background:var(--gold-dim)}
.nav-actions{display:none;gap:.5rem;align-items:center}
@media(min-width:768px){.nav-actions{display:flex}}
.nav-toggle{
  display:flex;font-size:1.3rem;cursor:pointer;color:var(--gold-light);
  background:none;border:none;padding:.3rem;
}
@media(min-width:768px){.nav-toggle{display:none}}

.mobile-menu{max-height:0;overflow:hidden;transition:max-height .35s;background:var(--bg-card2);border-bottom:1px solid var(--border)}
.mobile-menu.open{max-height:600px}
.mobile-menu-inner{display:flex;flex-direction:column;padding:.75rem 1rem 1rem;gap:.2rem}
.mobile-menu-inner a{text-decoration:none;color:var(--text-muted);padding:.5rem 0;font-size:.82rem;border-bottom:1px solid var(--border)}
.mobile-menu-inner a:hover{color:var(--gold-light)}
.mobile-actions{display:flex;flex-direction:column;gap:.5rem;padding:.75rem 0 0;border-top:1px solid var(--border)}

/* ---- Hero ---- */
.hero-section{
  background:linear-gradient(170deg,#0d0a04 0%,#1a1207 30%,#221212 60%,#0d0a04 100%);
  padding-top:calc(var(--nav-height)+1rem);padding-bottom:3rem;position:relative;overflow:hidden;
}
.hero-section::before{
  content:'';position:absolute;top:-40%;right:-10%;width:500px;height:500px;
  background:radial-gradient(circle,rgba(212,175,55,.04) 0%,transparent 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:2.5rem;align-items:center;position:relative;z-index:1}
@media(min-width:768px){.hero-grid{grid-template-columns:1.2fr 1fr}}
@media(max-width:767px){.hero-right{order:-1}}
.hero-left h1{font-size:clamp(1.6rem,3.8vw,2.6rem);font-weight:900;line-height:1.15;margin-bottom:.6rem}
.hero-left p{color:var(--text-body);font-size:clamp(.9rem,1.4vw,1.05rem);margin-bottom:1.1rem;max-width:34rem}
.hero-right img{width:100%;max-width:500px;border-radius:var(--radius-xl);box-shadow:0 10px 40px rgba(0,0,0,.4),0 0 30px rgba(212,175,55,.06)}
.hero-kws{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.5rem}
.hero-kw{
  display:inline-block;font-size:.65rem;padding:.15rem .55rem;border-radius:20px;
  background:rgba(212,175,55,.08);color:var(--gold-light);border:1px solid rgba(212,175,55,.2);
}
.hero-buttons{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.6rem}

/* ---- Tagline Banner ---- */
.tagline{
  background:linear-gradient(135deg,#1a1207,#221212,#1a1207);
  border-block:1px solid var(--border);padding:.9rem 1rem;text-align:center;
}
.tagline-text{font-size:clamp(1rem,2vw,1.25rem);font-weight:800;letter-spacing:.06em}
.tagline-text span{color:var(--gold-light)}
.tagline-sub{font-size:.75rem;color:var(--text-muted);margin-top:.1rem}

/* ---- Section ---- */
.section{padding:3.5rem 0}
.section-alt{background:var(--bg-section)}
.section-dark{background:var(--bg)}
@media(min-width:768px){.section{padding:4.5rem 0}}

.section-label{
  display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--gold-light);margin-bottom:.25rem;
}
.section-title{
  font-size:clamp(1.25rem,2.6vw,1.85rem);font-weight:800;
  margin-bottom:.4rem;
}
.section-title::after{
  content:'';display:block;width:50px;height:3px;
  background:linear-gradient(90deg,var(--gold-dark),var(--gold-light));
  margin:.45rem auto 0;border-radius:2px;
}
.section-title.no-line::after{display:none}
.section-desc{color:var(--text-muted);max-width:42rem;margin:0 auto 1.5rem;font-size:.85rem;line-height:1.5}

/* ---- Gold Decorator --- */
.gold-ornament{
  width:24px;height:24px;border-radius:4px;
  background:linear-gradient(135deg,var(--gold-dark),var(--gold),var(--gold-light));
  display:inline-block;margin-bottom:.25rem;
}
.gold-border{border:1px solid var(--border);border-radius:var(--radius-lg)}

/* ---- Cards ---- */
.card{
  background:var(--bg-card);border-radius:var(--radius-lg);padding:1.5rem;
  border:1px solid var(--border);transition:all .35s;position:relative;overflow:hidden;
}
.card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold-glow),transparent);
  opacity:0;transition:opacity .35s;
}
.card:hover{transform:translateY(-5px);border-color:rgba(212,175,55,.25);box-shadow:var(--shadow-glow)}
.card:hover::before{opacity:1}
.card-icon{
  width:44px;height:44px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(212,175,55,.1),rgba(212,175,55,.03));
  display:flex;align-items:center;justify-content:center;
  color:var(--gold-light);font-size:1.2rem;margin-bottom:.7rem;border:1px solid var(--border);
}
.card-tag{
  display:inline-block;font-size:.62rem;font-weight:700;padding:.15rem .5rem;
  border-radius:20px;background:rgba(212,175,55,.1);color:var(--gold-light);
  margin-bottom:.35rem;border:1px solid rgba(212,175,55,.15);
}
.card h3{font-size:.98rem;font-weight:700;color:var(--text-primary);margin-bottom:.3rem}
.card p{color:var(--text-body);font-size:.82rem;line-height:1.55}

/* ---- Stats ---- */
.stats-board{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;
}
@media(min-width:640px){.stats-board{grid-template-columns:repeat(4,1fr)}}
.stat-item{text-align:center}
.stat-num{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:900;background:linear-gradient(135deg,var(--gold-light),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.75rem;color:var(--text-muted);margin-top:.1rem}

/* ---- Guide Steps ---- */
.guide-steps{display:flex;flex-direction:column;gap:.7rem}
.guide-step{
  display:flex;align-items:center;gap:1rem;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:.85rem 1rem;transition:all .3s;
}
.guide-step:hover{border-color:rgba(212,175,55,.25)}
.step-badge{
  width:36px;height:36px;min-width:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold-dark),var(--gold),var(--gold-light));
  color:#1a1207;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.8rem;
}
.guide-step h4{font-size:.88rem;font-weight:700;color:var(--text-primary)}
.guide-step p{font-size:.78rem;color:var(--text-muted)}

/* ---- Testimonials ---- */
.test-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:1.4rem;transition:all .35s;
}
.test-card:hover{transform:translateY(-4px);border-color:rgba(212,175,55,.2)}
.test-stars{color:var(--gold-light);margin-bottom:.5rem;font-size:.82rem}
.test-card blockquote{color:var(--text-body);font-size:.82rem;line-height:1.55;margin-bottom:.7rem;font-style:italic}
.test-author{display:flex;align-items:center;gap:.6rem}
.test-avatar{
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold-dark),var(--coral));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.7rem;
}
.test-name{font-weight:600;font-size:.8rem;color:var(--text-primary)}
.test-title{font-size:.68rem;color:var(--text-muted)}

/* ---- Brand Strip ---- */
.brand-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem}
.brand-strip span{
  font-size:.75rem;padding:.35rem .85rem;
  background:rgba(212,175,55,.05);border:1px solid var(--border);
  border-radius:30px;color:var(--text-body);font-weight:500;
}

/* ---- FAQ ---- */
.faq-list{max-width:44rem;margin:0 auto;display:flex;flex-direction:column;gap:.5rem}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:.85rem 1.1rem;background:transparent;border:none;
  cursor:pointer;font-weight:600;font-size:.88rem;text-align:left;
  color:var(--text-primary);transition:background .2s;
}
.faq-question:hover{background:rgba(212,175,55,.04)}
.faq-icon{font-size:1.1rem;color:var(--gold-light);transition:transform .35s;font-weight:700}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s}
.faq-item.active .faq-answer{max-height:500px}
.faq-answer-inner{padding:.6rem 1.1rem .85rem;color:var(--text-body);font-size:.82rem;line-height:1.55}

/* ---- CTA ---- */
.cta-section{
  background:linear-gradient(170deg,#0d0a04,#1a1207,#221212);
  text-align:center;border-top:1px solid var(--border);
}
.cta-section h2{font-size:clamp(1.2rem,2.5vw,1.7rem);font-weight:800;margin-bottom:.5rem}
.cta-section p{color:var(--text-muted);margin-bottom:1.2rem;font-size:.88rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}

/* ---- Contact ---- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:1.25rem;max-width:44rem;margin:0 auto}
@media(min-width:640px){.contact-grid{grid-template-columns:1fr 1fr}}
.contact-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:1.5rem;
}
.contact-card h3{font-size:.95rem;font-weight:700;margin-bottom:.7rem;color:var(--text-primary)}
.contact-row{display:flex;align-items:flex-start;gap:.6rem;margin-bottom:.55rem}
.contact-ico{
  width:34px;height:34px;min-width:34px;border-radius:var(--radius);
  background:rgba(212,175,55,.08);
  display:flex;align-items:center;justify-content:center;
  color:var(--gold-light);font-size:.8rem;
}
.contact-label{font-size:.65rem;color:var(--text-muted)}
.contact-val{font-size:.82rem;font-weight:600;color:var(--gold-light)}

/* ---- Data Table ---- */
.data-table{width:100%;border-collapse:collapse;font-size:.82rem}
.data-table th{
  background:rgba(212,175,55,.08);color:var(--gold-light);font-weight:700;
  padding:.6rem .75rem;text-align:left;border-bottom:2px solid var(--gold-dim);
}
.data-table td{padding:.5rem .75rem;border-bottom:1px solid var(--border);color:var(--text-body)}
.data-table tr:hover td{background:rgba(212,175,55,.03)}

/* ---- Timeline ---- */
.timeline{position:relative;padding-left:1.5rem;max-width:40rem;margin:0 auto}
.timeline::before{content:'';position:absolute;left:7px;top:0;bottom:0;width:2px;background:var(--gold-dim)}
.tl-item{position:relative;margin-bottom:1.25rem}
.tl-item::before{
  content:'';position:absolute;left:-1.35rem;top:.35rem;
  width:10px;height:10px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold-dark),var(--gold-light));
  border:2px solid var(--bg-card);
}
.tl-date{font-size:.65rem;color:var(--gold-light);font-weight:600;margin-bottom:.15rem}
.tl-content{background:var(--bg-card);border-radius:var(--radius);padding:.75rem .9rem;border:1px solid var(--border)}
.tl-content h4{font-size:.82rem;font-weight:700;color:var(--text-primary);margin-bottom:.1rem}
.tl-content p{font-size:.78rem;color:var(--text-body)}

/* ---- Data Highlight ---- */
.data-highlight{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}
@media(min-width:480px){.data-highlight{grid-template-columns:repeat(4,1fr)}}
.dh-item{
  text-align:center;padding:.7rem .5rem;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
}
.dh-num{font-size:clamp(1.1rem,2vw,1.4rem);font-weight:800;color:var(--gold-light)}
.dh-label{font-size:.7rem;color:var(--text-muted)}

/* ---- Footer ---- */
.site-footer{
  background:#080602;border-top:1px solid var(--border);
  padding:2.5rem 0 1.5rem;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:1.5rem;margin-bottom:1.5rem;
}
@media(min-width:640px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.footer-brand .f-logo{font-size:1rem;font-weight:900}
.footer-brand .f-logo span{font-family:'Playfair Display',serif}
.footer-brand p{font-size:.75rem;color:var(--text-muted);margin-top:.4rem;line-height:1.5}
.footer-col h4{font-size:.8rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem}
.footer-col a{display:block;font-size:.75rem;color:var(--text-muted);text-decoration:none;margin-bottom:.3rem;transition:color .2s}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:1rem;
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
}
@media(min-width:640px){.footer-bottom{flex-direction:row;justify-content:space-between}}
.footer-bottom p{font-size:.7rem;color:var(--text-muted);opacity:.6}
.footer-social{display:flex;gap:.4rem}
.footer-social a{
  width:28px;height:28px;border-radius:50%;
  background:rgba(212,175,55,.05);border:1px solid var(--border);
  color:var(--text-muted);display:flex;align-items:center;justify-content:center;
  text-decoration:none;font-size:.7rem;transition:all .25s;
}
.footer-social a:hover{background:rgba(212,175,55,.15);color:var(--gold-light)}

/* ---- Back to Top ---- */
.back-top{
  position:fixed;bottom:1.5rem;right:1.5rem;width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold-dark),var(--gold));
  color:#1a1207;border:none;cursor:pointer;font-size:.85rem;
  box-shadow:0 4px 14px rgba(212,175,55,.2);z-index:99;
  opacity:0;visibility:hidden;transition:all .3s;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px)}

::selection{background:rgba(212,175,55,.15)}