/* 杏吧原创APP官网 - 全局样式 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#ff2e95;
  --secondary:#ff8c00;
  --accent:#7c3aed;
  --dark:#0a0e2b;
  --dark-light:#12163a;
  --text:#e8e8f0;
  --text-muted:#a0a0b8;
  --gradient:linear-gradient(135deg,var(--primary),var(--secondary));
  --radius:12px;
  --shadow:0 4px 24px rgba(255,46,149,.15);
  --max-width:1200px;
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--dark);
  color:var(--text);
  line-height:1.7;
  min-height:100vh;
}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--secondary)}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,14,43,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,46,149,.2);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;max-width:var(--max-width);margin:0 auto;
}
.logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:#fff}
.logo img{width:40px;height:40px;border-radius:10px}
.nav-links{display:flex;gap:24px;list-style:none}
.nav-links a{color:var(--text-muted);font-size:.95rem;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* Hero */
.hero{
  padding:60px 20px 40px;
  text-align:center;
  background:radial-gradient(ellipse at top,rgba(255,46,149,.12),transparent 60%);
}
.hero h1{
  font-size:clamp(1.8rem,4vw,2.8rem);
  background:var(--gradient);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:16px;line-height:1.3;
}
.hero .subtitle{font-size:1.1rem;color:var(--text-muted);max-width:700px;margin:0 auto 30px}
.hero-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:30px}
.badge{
  background:rgba(255,46,149,.12);
  border:1px solid rgba(255,46,149,.3);
  padding:6px 16px;border-radius:20px;font-size:.85rem;color:var(--primary);
}
.btn{
  display:inline-block;padding:12px 32px;border-radius:30px;
  background:var(--gradient);color:#fff;font-weight:600;
  transition:transform .2s,box-shadow .2s;
}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}

/* Sections */
section{padding:50px 0}
.section-title{
  font-size:1.6rem;margin-bottom:8px;
  background:var(--gradient);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.section-desc{color:var(--text-muted);margin-bottom:30px;font-size:.95rem}

/* Feature Grid */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;
}
.feature-card{
  background:var(--dark-light);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .3s,box-shadow .3s;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature-card img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.feature-card .card-body{padding:16px}
.feature-card h3{font-size:1.05rem;margin-bottom:8px;color:#fff}
.feature-card p{font-size:.88rem;color:var(--text-muted);line-height:1.6}

/* Content blocks */
.content-block{
  background:var(--dark-light);
  border-radius:var(--radius);
  padding:30px;
  margin-bottom:30px;
  border:1px solid rgba(255,255,255,.05);
}
.content-block h2{font-size:1.3rem;margin-bottom:16px;color:#fff}
.content-block h3{font-size:1.1rem;margin:20px 0 10px;color:var(--secondary)}
.content-block p,.content-block li{color:var(--text-muted);margin-bottom:12px;font-size:.95rem}
.content-block ul,.content-block ol{padding-left:24px;margin-bottom:16px}
.content-block li{margin-bottom:8px}

/* Two column layout */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.two-col img{border-radius:var(--radius);box-shadow:var(--shadow)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin-top:20px}
.step{
  background:var(--dark-light);padding:24px;border-radius:var(--radius);
  border:1px solid rgba(255,46,149,.15);text-align:center;
}
.step-num{
  width:36px;height:36px;border-radius:50%;
  background:var(--gradient);color:#fff;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 12px;font-weight:700;
}
.step h4{color:#fff;margin-bottom:8px;font-size:1rem}
.step p{font-size:.85rem;color:var(--text-muted)}

/* FAQ */
.faq-item{border-bottom:1px solid rgba(255,255,255,.08);padding:16px 0}
.faq-item h3{font-size:1rem;color:#fff;margin-bottom:8px}
.faq-item p{font-size:.9rem;color:var(--text-muted)}

/* Internal links block */
.internal-links{
  display:flex;flex-wrap:wrap;gap:12px;margin:20px 0;
}
.internal-links a{
  background:rgba(255,46,149,.1);
  border:1px solid rgba(255,46,149,.25);
  padding:8px 18px;border-radius:20px;font-size:.88rem;
}

/* Footer */
.site-footer{
  background:var(--dark-light);
  border-top:1px solid rgba(255,255,255,.06);
  padding:40px 20px 20px;margin-top:60px;
}
.footer-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:30px;max-width:var(--max-width);margin:0 auto 30px;
}
.footer-grid h4{color:#fff;margin-bottom:12px;font-size:.95rem}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:8px}
.footer-grid a{color:var(--text-muted);font-size:.88rem}
.footer-bottom{
  text-align:center;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.06);
  color:var(--text-muted);font-size:.82rem;
  max-width:var(--max-width);margin:0 auto;
}

/* Page hero (subpages) */
.page-hero{padding:40px 20px 20px;text-align:center}
.page-hero h1{font-size:1.8rem;color:#fff;margin-bottom:8px}
.page-hero p{color:var(--text-muted);font-size:.95rem}
.breadcrumb{font-size:.85rem;color:var(--text-muted);margin-bottom:10px}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}

/* Error pages */
.error-page{
  min-height:70vh;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:40px 20px;
}
.error-page h1{font-size:5rem;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.error-page h2{color:#fff;margin:10px 0 16px}
.error-page p{color:var(--text-muted);margin-bottom:24px}

/* Responsive */
@media(max-width:768px){
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    background:var(--dark-light);flex-direction:column;
    padding:16px 20px;gap:12px;
    border-bottom:1px solid rgba(255,46,149,.2);
  }
  .nav-links.open{display:flex}
  .menu-toggle{display:block}
  .two-col{grid-template-columns:1fr}
  .hero{padding:40px 16px 30px}
  section{padding:36px 0}
  .content-block{padding:20px}
  .feature-grid{grid-template-columns:1fr 1fr;gap:12px}
  .feature-card .card-body{padding:10px}
  .feature-card h3{font-size:.9rem}
  .feature-card p{font-size:.78rem}
}
@media(max-width:480px){
  .feature-grid{grid-template-columns:1fr}
}