*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0f0f14;--bg2:#1a1a24;--bg3:#242433;
  --text:#e8e8ef;--muted:#9a9ab0;
  --accent:#e84393;--accent2:#a855f7;--accent3:#ff6b35;
  --border:#2e2e42;--radius:12px;--max:1180px;
  --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:1.75;min-height:100vh}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent3)}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(15,15,20,.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-desktop{display:flex;gap:6px}
.nav-desktop a{padding:8px 14px;border-radius:8px;color:var(--muted);font-size:.95rem}
.nav-desktop a:hover,.nav-desktop a.active{color:#fff;background:var(--bg3)}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer;padding:4px 8px}
.nav-mobile{display:none;flex-direction:column;background:var(--bg2);border-top:1px solid var(--border);padding:12px 20px;gap:4px}
.nav-mobile.open{display:flex}
.nav-mobile a{padding:10px 12px;border-radius:8px;color:var(--muted)}
.nav-mobile a:hover{color:#fff;background:var(--bg3)}

/* Hero */
.hero{padding:56px 0 40px;background:linear-gradient(160deg,#1a1028 0%,var(--bg) 60%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(1.75rem,4vw,2.5rem);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-lead{font-size:1.05rem;color:var(--muted);margin-bottom:24px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:10px;font-weight:600;font-size:.95rem;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(232,67,147,.35);color:#fff}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.hero-img{border-radius:var(--radius);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.5);border:1px solid var(--border)}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;padding:4px 12px;border-radius:20px;font-size:.8rem;background:var(--bg3);color:var(--muted);border:1px solid var(--border)}

/* Sections */
section{padding:48px 0}
.section-title{font-size:1.6rem;margin-bottom:8px}
.section-desc{color:var(--muted);margin-bottom:32px;max-width:720px}
.section-alt{background:var(--bg2)}

/* Feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding: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:8px;color:#fff}
.feature-card p{font-size:.92rem;color:var(--muted)}

/* Category showcase */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat-item{background:var(--bg2);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:transform .2s}
.cat-item:hover{transform:scale(1.02)}
.cat-item img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.cat-item figcaption{padding:10px 12px;font-size:.85rem;color:var(--muted);text-align:center}

/* Content blocks */
.content-block{margin-bottom:36px}
.content-block h2{font-size:1.35rem;margin:32px 0 12px;color:#fff;padding-left:12px;border-left:3px solid var(--accent)}
.content-block h3{font-size:1.1rem;margin:20px 0 8px;color:var(--text)}
.content-block p{margin-bottom:14px;color:var(--muted);text-align:justify}
.content-block ul,.content-block ol{margin:0 0 16px 24px;color:var(--muted)}
.content-block li{margin-bottom:6px}
.content-block a{color:var(--accent)}

/* Two column layout */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.img-showcase{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:0 8px 32px rgba(0,0,0,.3)}
.img-showcase img{width:100%}
.img-showcase figcaption{padding:10px 14px;background:var(--bg3);font-size:.82rem;color:var(--muted);text-align:center}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;text-align:center;position:relative}
.step::before{counter-increment:step;content:counter(step);display:block;width:36px;height:36px;line-height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:700;margin:0 auto 12px}
.step h4{font-size:1rem;margin-bottom:6px}
.step p{font-size:.85rem;color:var(--muted)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq-q{padding:16px 20px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:"+";font-size:1.2rem;color:var(--accent);transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 20px 16px;color:var(--muted);font-size:.92rem;display:none}
.faq-item.open .faq-a{display:block}

/* Page layout (legal) */
.page-hero{padding:40px 0 24px;border-bottom:1px solid var(--border)}
.page-hero h1{font-size:1.8rem;margin-bottom:8px}
.page-hero p{color:var(--muted);font-size:.95rem}
.legal-content{padding:40px 0 60px}
.legal-content h2{font-size:1.2rem;margin:28px 0 10px;color:#fff}
.legal-content p,.legal-content li{color:var(--muted);margin-bottom:10px}
.legal-content ul,.legal-content ol{margin:0 0 14px 24px}
.legal-content .updated{font-size:.85rem;color:var(--muted);margin-bottom:24px}

/* Error pages */
.error-page{min-height:calc(100vh - var(--header-h) - 200px);display:flex;align-items:center;justify-content:center;text-align:center;padding:60px 20px}
.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:12px 0}
.error-page p{color:var(--muted);margin-bottom:24px;max-width:480px}

/* 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:1.5fr 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:12px;color:#fff}
.footer-col a{display:block;color:var(--muted);font-size:.88rem;padding:4px 0}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border);padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.82rem;color:var(--muted)}
.breadcrumb{padding:12px 0;font-size:.85rem;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 6px}

/* Responsive */
@media(max-width:960px){
  .hero-grid,.two-col{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-desktop{display:none}
  .menu-toggle{display:block}
  .feature-grid,.cat-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero{padding:36px 0 28px}
  section{padding:32px 0}
}