/* 杏吧官方 xbx.pics - 全局样式 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d0d14;--bg2:#161622;--bg3:#1e1e2e;
  --text:#e8e8f0;--text2:#9898b0;--text3:#686880;
  --accent:#ff6b8a;--accent2:#a855f7;--gold:#f5c542;
  --border:#2a2a3e;--radius:12px;--shadow:0 4px 24px rgba(0,0,0,.4);
  --max:1200px;--header-h:64px;
}
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(--bg);color:var(--text);line-height:1.7;min-height:100vh}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block;border-radius:8px}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(13,13,20,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--header-h)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:1.25rem}
.logo img{width:36px;height:36px;border-radius:8px}
.nav-desktop{display:flex;gap:28px;list-style:none}
.nav-desktop a{color:var(--text2);font-size:.95rem;font-weight:500}
.nav-desktop a:hover,.nav-desktop a.active{color:var(--accent)}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer;padding:4px}

/* Mobile Nav */
.nav-mobile{display:none;position:fixed;top:var(--header-h);left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--border);padding:16px 20px;z-index:99}
.nav-mobile.open{display:block}
.nav-mobile a{display:block;padding:12px 0;color:var(--text2);border-bottom:1px solid var(--border);font-size:1rem}
.nav-mobile a:last-child{border-bottom:none}

/* Hero */
.hero{padding:60px 0 40px;background:linear-gradient(135deg,rgba(168,85,247,.12) 0%,rgba(255,107,138,.08) 100%)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:2.2rem;line-height:1.3;margin-bottom:16px;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{color:var(--text2);font-size:1.05rem;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.tag{display:inline-block;padding:4px 12px;background:var(--bg3);border:1px solid var(--border);border-radius:20px;font-size:.85rem;color:var(--text2)}
.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-weight:600;font-size:.95rem;transition:transform .2s,box-shadow .2s}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 4px 16px rgba(255,107,138,.3)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,107,138,.4)}
.btn-outline{border:1px solid var(--accent);color:var(--accent);margin-left:12px}
.btn-outline:hover{background:rgba(255,107,138,.1);color:var(--accent)}
.hero-img{border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}

/* Sections */
section{padding:56px 0}
.section-title{font-size:1.6rem;margin-bottom:8px;color:var(--text)}
.section-sub{color:var(--text2);margin-bottom:32px;font-size:.95rem}
.section-alt{background:var(--bg2)}

/* Feature Grid */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .2s,border-color .2s}
.feature-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.feature-card img{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:0}
.feature-card-body{padding:16px}
.feature-card h3{font-size:1rem;margin-bottom:6px;color:var(--text)}
.feature-card p{font-size:.875rem;color:var(--text2);line-height:1.6}

/* Content Block */
.content-block{max-width:860px}
.content-block h2{font-size:1.4rem;margin:32px 0 12px;color:var(--text);padding-left:12px;border-left:3px solid var(--accent)}
.content-block h3{font-size:1.15rem;margin:24px 0 10px;color:var(--text)}
.content-block p{margin-bottom:16px;color:var(--text2);text-align:justify}
.content-block ul,.content-block ol{margin:0 0 16px 24px;color:var(--text2)}
.content-block li{margin-bottom:8px}

/* Two Column */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.two-col img{border-radius:var(--radius);box-shadow:var(--shadow)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}
.step{text-align:center;padding:24px 16px;background:var(--bg3);border-radius:var(--radius);border:1px solid var(--border)}
.step-num{width:40px;height:40px;line-height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:700;margin:0 auto 12px}
.step h4{font-size:.95rem;margin-bottom:6px}
.step p{font-size:.8rem;color:var(--text2)}

/* VIP Banner */
.vip-banner{display:grid;grid-template-columns:1fr 1fr;gap:32px;background:linear-gradient(135deg,#1a1030,#2a1040);border:1px solid rgba(168,85,247,.3);border-radius:var(--radius);padding:32px;align-items:center}
.vip-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:16px}
.vip-list li{font-size:.85rem;color:var(--text2);list-style:none;padding-left:16px;position:relative}
.vip-list li::before{content:"✓";position:absolute;left:0;color:var(--gold)}

/* Breadcrumb */
.breadcrumb{padding:16px 0;font-size:.875rem;color:var(--text3)}
.breadcrumb a{color:var(--text2)}
.breadcrumb span{margin:0 8px}

/* Page Content */
.page-header{padding:40px 0 24px;border-bottom:1px solid var(--border);margin-bottom:32px}
.page-header h1{font-size:1.8rem;margin-bottom:8px}
.page-header p{color:var(--text2)}
.legal-content{max-width:860px;padding-bottom:60px}
.legal-content h2{font-size:1.2rem;margin:28px 0 12px;color:var(--text)}
.legal-content p,.legal-content li{color:var(--text2);margin-bottom:12px}
.legal-content ul,.legal-content ol{margin-left:24px;margin-bottom:16px}
.update-date{color:var(--text3);font-size:.875rem;margin-top:24px}

/* Error Pages */
.error-page{text-align:center;padding:80px 20px;min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center}
.error-code{font-size:6rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.error-page h1{font-size:1.5rem;margin:16px 0 8px}
.error-page p{color:var(--text2);margin-bottom:24px}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--border);padding:48px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand p{color:var(--text2);font-size:.875rem;margin-top:12px;line-height:1.6}
.footer-col h4{font-size:.95rem;margin-bottom:12px;color:var(--text)}
.footer-col a{display:block;color:var(--text2);font-size:.875rem;padding:4px 0}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{text-align:center;padding-top:24px;border-top:1px solid var(--border);color:var(--text3);font-size:.8rem}

/* Internal Links Box */
.link-box{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;margin:24px 0}
.link-box h4{font-size:.95rem;margin-bottom:10px;color:var(--text)}
.link-box a{margin-right:16px;font-size:.875rem}

/* Responsive */
@media(max-width:992px){
  .hero-grid,.two-col,.vip-banner{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-desktop{display:none}
  .menu-toggle{display:block}
  .hero h1{font-size:1.6rem}
  .hero{padding:40px 0 24px}
  .feature-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn-outline{margin-left:0;margin-top:12px;display:block;text-align:center}
  section{padding:40px 0}
}