*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0a0e1a;--bg2:#12121b;--bg3:#1a1a2e;
  --text:#e8e8f0;--text2:#a0a0b8;--text3:#6b6b80;
  --accent:#ff2d78;--accent2:#ff7f50;--accent3:#6a5acd;
  --gradient:linear-gradient(135deg,#6a5acd,#ff2d78,#ff7f50);
  --radius:12px;--radius-lg:20px;
  --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;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(10,14,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,45,120,.12);height:var(--header-h)}
body{padding-top:var(--header-h)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:var(--text);white-space:nowrap}
.logo img{width:36px;height:36px;border-radius:8px}
.logo span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-desktop{display:flex;gap:28px}
.nav-desktop a{color:var(--text2);font-size:.9375rem;font-weight:500;padding:4px 0;border-bottom:2px solid transparent}
.nav-desktop a:hover,.nav-desktop a.active{color:var(--text);border-bottom-color:var(--accent)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;border-radius:2px;transition:.3s}
.nav-mobile{display:none;position:fixed;top:var(--header-h);left:0;right:0;background:var(--bg2);border-bottom:1px solid rgba(255,45,120,.15);padding:16px 20px;z-index:101;flex-direction:column;gap:4px}
.nav-mobile.open{display:flex}
.nav-mobile a{color:var(--text2);padding:12px 0;font-size:1rem;border-bottom:1px solid rgba(255,255,255,.06)}
.nav-mobile a:hover{color:var(--accent)}

/* Hero */
.hero{padding:60px 0 80px;background:radial-gradient(ellipse at 50% 0%,rgba(106,90,205,.15) 0%,transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-badge{display:inline-block;padding:6px 16px;background:rgba(255,45,120,.12);border:1px solid rgba(255,45,120,.25);border-radius:20px;font-size:.8125rem;color:var(--accent);margin-bottom:16px}
.hero h1{font-size:2.5rem;line-height:1.3;margin-bottom:16px;font-weight:800}
.hero h1 em{font-style:normal;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.0625rem;color:var(--text2);margin-bottom:28px;line-height:1.8}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:var(--radius);font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 20px rgba(255,45,120,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(255,45,120,.45);color:#fff}
.btn-outline{background:transparent;color:var(--text);border:1px solid rgba(255,255,255,.2)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.hero-visual img{width:100%;border-radius:var(--radius-lg)}
.hero-visual::after{content:"";position:absolute;inset:0;border-radius:var(--radius-lg);border:1px solid rgba(255,45,120,.2);pointer-events:none}

/* Sections */
section{padding:72px 0}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{font-size:1.875rem;font-weight:700;margin-bottom:12px}
.section-header p{color:var(--text2);max-width:640px;margin:0 auto;font-size:1rem}
.section-label{display:inline-block;font-size:.75rem;text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:8px;font-weight:600}

/* Features */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--bg2);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);padding:28px 24px;transition:border-color .3s,transform .3s}
.feature-card:hover{border-color:rgba(255,45,120,.3);transform:translateY(-4px)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:1.25rem;margin-bottom:16px}
.feature-card h3{font-size:1.0625rem;margin-bottom:8px;font-weight:600}
.feature-card p{color:var(--text2);font-size:.875rem;line-height:1.6}

/* Category showcase */
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.category-item{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--bg2);border:1px solid rgba(255,255,255,.06);transition:transform .3s,border-color .3s}
.category-item:hover{transform:translateY(-3px);border-color:rgba(255,45,120,.25)}
.category-item img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.category-item figcaption{padding:14px 16px}
.category-item h3{font-size:.9375rem;font-weight:600;margin-bottom:4px}
.category-item p{font-size:.8125rem;color:var(--text2)}

/* Content blocks */
.content-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px}
.content-block.reverse{direction:rtl}
.content-block.reverse>*{direction:ltr}
.content-block img{border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.content-block h2{font-size:1.5rem;margin-bottom:16px;font-weight:700}
.content-block p{color:var(--text2);margin-bottom:12px;font-size:.9375rem;line-height:1.8}
.content-block ul{margin:16px 0;padding-left:0}
.content-block li{padding:6px 0 6px 24px;position:relative;color:var(--text2);font-size:.9375rem}
.content-block li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}

/* Steps */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step-card{background:var(--bg2);border-radius:var(--radius);padding:28px 20px;text-align:center;border:1px solid rgba(255,255,255,.06);position:relative}
.step-card::before{counter-increment:step;content:counter(step);display:block;width:40px;height:40px;line-height:40px;border-radius:50%;background:var(--gradient);color:#fff;font-weight:700;margin:0 auto 16px;font-size:1.125rem}
.step-card h3{font-size:1rem;margin-bottom:8px;font-weight:600}
.step-card p{color:var(--text2);font-size:.8125rem}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(255,255,255,.08);padding:20px 0}
.faq-item h3{font-size:1rem;font-weight:600;margin-bottom:8px;color:var(--text)}
.faq-item p{color:var(--text2);font-size:.9375rem;line-height:1.7}

/* Article / Legal pages */
.page-hero{padding:48px 0 32px;background:var(--bg2);border-bottom:1px solid rgba(255,255,255,.06)}
.page-hero h1{font-size:2rem;font-weight:700;margin-bottom:8px}
.page-hero p{color:var(--text2);font-size:.9375rem}
.article{padding:48px 0 80px}
.article-content{max-width:820px;margin:0 auto}
.article-content h2{font-size:1.375rem;margin:36px 0 14px;font-weight:700;color:var(--text)}
.article-content h3{font-size:1.125rem;margin:24px 0 10px;font-weight:600}
.article-content p,.article-content li{color:var(--text2);font-size:.9375rem;line-height:1.8;margin-bottom:14px}
.article-content ul,.article-content ol{padding-left:24px;margin-bottom:16px}
.article-content li{margin-bottom:6px}
.article-content a{color:var(--accent)}

/* 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-page h1{font-size:6rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.error-page h2{font-size:1.5rem;margin:16px 0 12px}
.error-page p{color:var(--text2);margin-bottom:28px;max-width:480px;margin-left:auto;margin-right:auto}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid rgba(255,255,255,.06);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
.footer-brand p{color:var(--text2);font-size:.875rem;margin-top:12px;line-height:1.7;max-width:320px}
.footer-col h4{font-size:.875rem;font-weight:600;margin-bottom:14px;color:var(--text)}
.footer-col a{display:block;color:var(--text2);font-size:.8125rem;padding:4px 0;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:gap;color:var(--text3);font-size:.8125rem}

/* Breadcrumb */
.breadcrumb{padding:16px 0;font-size:.8125rem;color:var(--text3)}
.breadcrumb a{color:var(--text2)}
.breadcrumb span{margin:0 8px}

/* Responsive */
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-desktop{display:none}
  .nav-toggle{display:block}
  .hero{padding:40px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:1.75rem}
  .hero-visual{max-width:320px;margin:0 auto}
  section{padding:48px 0}
  .content-block,.content-block.reverse{grid-template-columns:1fr;gap:24px;direction:ltr}
  .features-grid{grid-template-columns:1fr}
  .category-grid{grid-template-columns:1fr 1fr}
  .category-item img{aspect-ratio:9/14}
  .steps-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .page-hero h1{font-size:1.5rem}
  .error-page h1{font-size:4rem}
}
@media(max-width:480px){
  .category-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .btn{width:100%;justify-content:center}
}