/* 杏吧APP官网 - xbxx.autos */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d0b1a;--bg2:#151228;--bg3:#1e1a35;
  --text:#e8e6f0;--muted:#9a96b0;--accent:#ff6b9d;
  --accent2:#ff8c42;--gold:#d4af37;--border:#2a2545;
  --radius:12px;--shadow:0 8px 32px rgba(0,0,0,.45);
  --max:1200px;--header-h:72px
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;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:var(--radius)}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(13,11,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:16px}
.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-main{display:flex;gap:6px;flex-wrap:wrap}
.nav-main a{padding:8px 14px;border-radius:8px;color:var(--muted);font-size:.9rem}
.nav-main a:hover,.nav-main a.active{color:#fff;background:var(--bg3)}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:8px}

/* Hero */
.hero{padding:56px 0 40px;background:linear-gradient(160deg,#1a1030 0%,var(--bg) 60%)}
.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,#fff,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{color:var(--muted);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;border-radius:20px;background:var(--bg3);border:1px solid var(--border);font-size:.82rem;color:var(--accent)}
.btn{display:inline-block;padding:12px 28px;border-radius:10px;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 20px rgba(255,107,157,.35)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 6px 28px rgba(255,107,157,.5)}
.btn-outline{border:1px solid var(--accent);color:var(--accent);margin-left:12px}
.btn-outline:hover{background:var(--accent);color:#fff}
.hero-img{border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--border)}

/* Sections */
section{padding:48px 0}
.section-title{font-size:1.6rem;margin-bottom:8px;color:#fff}
.section-sub{color:var(--muted);margin-bottom:32px;font-size:.95rem}
.section-alt{background:var(--bg2)}

/* Feature cards */
.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 .25s,box-shadow .25s}
.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;border-radius:0}
.feature-body{padding:18px}
.feature-body h3{font-size:1.05rem;margin-bottom:8px;color:#fff}
.feature-body p{font-size:.88rem;color:var(--muted);line-height:1.6}

/* Content blocks */
.content-block{margin-bottom:36px}
.content-block h2{font-size:1.35rem;color:#fff;margin:28px 0 14px;padding-left:12px;border-left:3px solid var(--accent)}
.content-block h3{font-size:1.1rem;color:var(--accent2);margin:20px 0 10px}
.content-block p{margin-bottom:14px;color:var(--text);font-size:.95rem;text-align:justify}
.content-block ul,.content-block ol{margin:0 0 16px 24px;color:var(--muted)}
.content-block li{margin-bottom:6px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;margin:24px 0}
.img-caption{text-align:center;font-size:.82rem;color:var(--muted);margin-top:8px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:32px 0}
.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;color:#fff}
.step p{font-size:.82rem;color:var(--muted)}

/* FAQ */
.faq-item{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:12px}
.faq-item h4{color:#fff;margin-bottom:8px;font-size:1rem}
.faq-item p{color:var(--muted);font-size:.9rem}

/* Page header (sub pages) */
.page-header{padding:48px 0 32px;background:linear-gradient(160deg,#1a1030,var(--bg));border-bottom:1px solid var(--border)}
.page-header h1{font-size:1.8rem;margin-bottom:8px}
.page-header p{color:var(--muted)}
.page-content{padding:40px 20px 60px;max-width:860px;margin:0 auto}
.page-content h2{font-size:1.25rem;color:#fff;margin:28px 0 12px}
.page-content p,.page-content li{color:var(--muted);margin-bottom:12px;font-size:.93rem}
.page-content ul,.page-content ol{margin-left:24px;margin-bottom:16px}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--border);padding:40px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand p{color:var(--muted);font-size:.88rem;margin-top:12px;line-height:1.7}
.footer-links h4{color:#fff;margin-bottom:12px;font-size:.95rem}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:8px}
.footer-links a{color:var(--muted);font-size:.88rem}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font-size:.82rem}

/* Error pages */
.error-page{min-height:80vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.error-page h1{font-size:5rem;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.error-page h2{margin:12px 0;color:#fff}
.error-page p{color:var(--muted);margin-bottom:24px}

/* Breadcrumb */
.breadcrumb{padding:12px 0;font-size:.85rem;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb span{margin:0 6px}

/* Responsive */
@media(max-width:992px){
  .hero-grid,.two-col,.feature-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.7rem}
}
@media(max-width:768px){
  .nav-main{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:var(--bg2);flex-direction:column;padding:16px;border-bottom:1px solid var(--border)}
  .nav-main.open{display:flex}
  .menu-toggle{display:block}
  .feature-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .btn-outline{display:block;margin:12px 0 0;width:fit-content}
  .header-inner{position:relative}
  section{padding:32px 0}
  /* 非首页子页面移动端内边距 */
  .page-header{padding:32px 0 24px}
  .page-header .container{padding-left:16px;padding-right:16px}
  .page-content{padding:28px 16px 40px}
  .error-page{padding:40px 16px}
  .error-page>div{padding:0 8px}
}