/* 杏吧视频官网 - 全局样式 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0f0e17;--bg2:#1a1830;--bg3:#252040;
  --text:#e8e6f0;--muted:#9b97b0;
  --accent:#e84393;--accent2:#fd79a8;--gold:#f9ca24;
  --border:rgba(255,255,255,.08);--radius:12px;
  --max:1180px;--header-h:64px;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;min-height:100vh}
a{color:var(--accent2);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold)}
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(15,14,23,.92);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);gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:var(--text)}
.logo img{width:36px;height:36px;border-radius:8px}
.nav-main{display:flex;gap:6px;list-style:none}
.nav-main a{display:block;padding:8px 14px;border-radius:8px;color:var(--muted);font-size:.95rem}
.nav-main a:hover,.nav-main a.active{color:var(--text);background:var(--bg3)}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer;padding:4px 8px}

/* Ads bar */
.ads-bar{position:sticky;top:var(--header-h);z-index:99;background:rgba(15,14,23,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);padding:8px 0}

/* Hero */
.hero{padding:56px 0 48px;background:linear-gradient(160deg,var(--bg2) 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,var(--accent2),var(--gold));-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:28px}
.tag{background:var(--bg3);border:1px solid var(--border);padding:4px 12px;border-radius:20px;font-size:.85rem;color:var(--muted)}
.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 20px rgba(232,67,147,.3)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 6px 28px rgba(232,67,147,.45)}
.btn-outline{border:1px solid var(--accent);color:var(--accent2);margin-left:12px}
.btn-outline:hover{background:var(--accent);color:#fff}
.hero-img{border-radius:var(--radius);box-shadow:0 8px 40px rgba(0,0,0,.5);border:1px solid var(--border)}

/* Sections */
section{padding:56px 0}
.section-title{font-size:1.65rem;margin-bottom:8px}
.section-sub{color:var(--muted);margin-bottom:32px;font-size:.95rem}
.bg-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);padding:28px 24px;transition:border-color .2s,transform .2s}
.feature-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.feature-card h3{font-size:1.1rem;margin-bottom:10px;color:var(--accent2)}
.feature-card p{color:var(--muted);font-size:.92rem}

/* Content blocks */
.content-block{margin-bottom:40px}
.content-block h2{font-size:1.45rem;margin:36px 0 14px;padding-left:14px;border-left:4px solid var(--accent)}
.content-block h3{font-size:1.15rem;margin:24px 0 10px;color:var(--accent2)}
.content-block p,.content-block li{color:var(--muted);margin-bottom:12px}
.content-block ul,.content-block ol{padding-left:24px;margin-bottom:16px}
.content-block li{margin-bottom:6px}

/* Image showcase */
.showcase{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;margin:32px 0}
.showcase-img{border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 4px 24px rgba(0,0,0,.4)}
.showcase-text h3{margin-bottom:12px}

/* Category cards */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:28px 0}
.cat-card{background:var(--bg3);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:transform .2s}
.cat-card:hover{transform:scale(1.03)}
.cat-card img{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:0}
.cat-card figcaption{padding:10px 12px;font-size:.85rem;text-align:center;color:var(--muted)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:28px 0}
.step{text-align:center;padding:24px 16px;background:var(--bg3);border-radius:var(--radius);border:1px solid var(--border)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;margin-bottom:12px}
.step h4{margin-bottom:8px;font-size:.95rem}
.step p{font-size:.85rem;color:var(--muted)}

/* FAQ */
.faq-list{max-width:800px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{padding:16px 20px;background:var(--bg3);font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-a{padding:0 20px 16px;color:var(--muted);font-size:.92rem;display:none}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q{color:var(--accent2)}

/* Internal links box */
.link-box{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:32px 0}
.link-box h3{margin-bottom:14px;font-size:1.05rem}
.link-box ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.link-box li a{display:inline-block;padding:6px 14px;background:var(--bg2);border-radius:6px;font-size:.88rem;border:1px solid var(--border)}

/* Page hero (sub pages) */
.page-hero{padding:48px 0 32px;background:var(--bg2);border-bottom:1px solid var(--border)}
.page-hero h1{font-size:1.8rem;margin-bottom:8px}
.page-hero p{color:var(--muted)}
.page-content{padding:40px 20px 60px;max-width:860px;margin:0 auto}
.page-content h2{font-size:1.3rem;margin:32px 0 12px;color:var(--accent2)}
.page-content p,.page-content li{color:var(--muted);margin-bottom:12px}
.page-content ul,.page-content ol{padding-left:24px;margin-bottom:16px}

/* Error pages */
.error-page{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px}
.error-code{font-size:6rem;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--gold));-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(--muted);margin-bottom:28px}

/* 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(--muted);font-size:.88rem;margin-top:10px;line-height:1.6}
.footer-col h4{font-size:.95rem;margin-bottom:14px;color:var(--text)}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px}
.footer-col a{color:var(--muted);font-size:.88rem}
.footer-col a:hover{color:var(--accent2)}
.footer-bottom{border-top:1px solid var(--border);padding-top:20px;text-align:center;color:var(--muted);font-size:.82rem}

/* 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:960px){
  .hero-grid,.showcase{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-main{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:var(--bg2);flex-direction:column;padding:12px;border-bottom:1px solid var(--border)}
  .nav-main.open{display:flex}
  .menu-toggle{display:block}
  .hero h1{font-size:1.6rem}
  .feature-grid,.cat-grid,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn-outline{margin-left:0;margin-top:10px;display:inline-block}
  section{padding:36px 0}
  .page-hero{padding:36px 0 24px}
  .page-hero .container{padding:0 20px}
  .page-content{padding:32px 20px 48px}
  .error-page{padding:40px 20px}
  .site-footer .container{padding:0 20px}
}