:root{
  --bg: #F7F6F2;
  --bg-alt: #FFFFFF;
  --text: #0A1C2E;
  --text-2: #5E6A75;
  --text-3: #9AA4AF;
  --accent: #1A365D;
  --border: rgba(10,28,46,.1);
  --border-strong: rgba(10,28,46,.2);
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Playfair Display", "Noto Serif SC", serif;
  --radius: 4px;
  --maxw: 1280px;
  --ease: cubic-bezier(.25,1,.35,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-sans);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.section{padding:clamp(80px,10vw,140px) 0}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--text-3);margin-bottom:24px}
.sec-head{max-width:760px;margin-bottom:clamp(44px,6vw,72px)}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-title{font-family:var(--font-serif);font-size:clamp(2rem,4vw,3.2rem);line-height:1.2;font-weight:500;color:var(--text);text-wrap:balance}
.sec-desc{margin-top:20px;color:var(--text-2);font-size:16px;line-height:1.8}
.sec-head.center .sec-desc{margin-inline:auto}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all .4s var(--ease)}
.btn-primary{background:var(--text);color:var(--bg-alt);border-color:var(--text)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}
.btn-ghost:hover{background:var(--text);color:var(--bg-alt)}
.btn-sm{padding:10px 22px;font-size:14px}

.nav{position:fixed;top:0;left:0;right:0;z-index:200;transition:all .4s}
.nav.scrolled{background:rgba(247,246,242,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 32px;height:88px;display:flex;align-items:center;gap:44px}
.logo{display:flex;align-items:center;gap:12px;font-family:var(--font-serif);font-size:22px;font-weight:600}
.logo-mark{width:24px;height:24px;background:var(--text);border-radius:50%;position:relative;overflow:hidden}
.logo-mark::before{content:"";position:absolute;top:50%;left:0;width:100%;height:50%;background:var(--bg-alt);opacity:.8;border-radius:50% 50% 0 0/100% 100% 0 0;transform:translateY(-20%)}
.nav-links{display:flex;align-items:center;gap:36px;margin-left:auto}
.nav-links a{font-size:14.5px;color:var(--text-2);font-weight:500;transition:color .3s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-toggle{display:none;width:44px;height:44px;background:none;border:none;cursor:pointer;position:relative;margin-left:auto}
.nav-toggle span{position:absolute;left:10px;width:24px;height:2px;background:var(--text);transition:all .3s}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:26px}
.nav-toggle.active span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){transform:translateY(-5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;z-index:190;background:var(--bg);padding:120px 32px 48px;display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:all .4s}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu a{font-family:var(--font-serif);font-size:32px;padding:24px 0;border-bottom:1px solid var(--border);color:var(--text)}

.page-hero{padding:clamp(160px,18vw,220px) 0 clamp(60px,8vw,100px);background:var(--bg-alt)}
.crumb{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin-bottom:24px}
.crumb a{color:var(--accent)}
.page-title{font-family:var(--font-serif);font-size:clamp(2.4rem,6vw,4.2rem);line-height:1.15;font-weight:500}
.page-desc{margin-top:24px;color:var(--text-2);font-size:clamp(16px,1.8vw,18px);max-width:680px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.card{position:relative;padding:40px;border-radius:var(--radius);background:var(--bg-alt);border:1px solid var(--border);transition:all .4s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px -12px rgba(10,28,46,.08)}
.card-icon{width:48px;height:48px;border-radius:50%;background:var(--bg);display:grid;place-items:center;color:var(--accent);margin-bottom:24px}
.card-num{position:absolute;top:40px;right:40px;font-family:var(--font-serif);font-size:18px;color:var(--text-3);font-style:italic}
.card h3{font-family:var(--font-serif);font-size:22px;font-weight:500;margin-bottom:12px}
.card p{color:var(--text-2);font-size:15px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,80px);align-items:center}
.feature-list{list-style:none;margin-top:32px;display:grid;gap:24px}
.feature-list li{display:flex;gap:16px;align-items:flex-start}
.feature-list li svg{flex-shrink:0;margin-top:4px;color:var(--accent)}
.feature-list b{display:block;font-size:16px;font-weight:600;margin-bottom:4px;font-family:var(--font-serif)}
.feature-list span{color:var(--text-2);font-size:15px}
.media-box{border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;background:var(--bg-alt);border:1px solid var(--border)}
.media-box img{width:100%;height:100%;object-fit:cover;transition:transform .8s}
.media-box:hover img{transform:scale(1.03)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{padding:32px;background:var(--bg-alt);border-radius:var(--radius);border:1px solid var(--border)}
.step-no{font-family:var(--font-serif);font-size:14px;font-style:italic;color:var(--text-3);display:block;margin-bottom:16px}
.step h4{font-family:var(--font-serif);font-size:20px;font-weight:500;margin-bottom:12px}
.step p{font-size:15px;color:var(--text-2)}

.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-alt)}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:760px}
th{text-align:left;padding:20px 24px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);border-bottom:1px solid var(--border)}
td{padding:20px 24px;border-bottom:1px solid var(--border);color:var(--text-2)}
td:first-child{color:var(--text);font-weight:600;font-family:var(--font-serif);font-size:16px}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;background:var(--bg);color:var(--text);border:1px solid var(--border-strong)}

.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.plan{padding:48px 40px;border-radius:var(--radius);background:var(--bg-alt);border:1px solid var(--border);display:flex;flex-direction:column;transition:all .4s}
.plan.featured{border-color:var(--text);background:var(--text);color:var(--bg-alt)}
.plan.featured .plan-name,.plan.featured .plan-price,.plan.featured .plan-scale,.plan.featured .plan-list li{color:var(--bg-alt)}
.plan-name{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin-bottom:16px}
.plan-price{font-family:var(--font-serif);font-size:42px;font-weight:500;margin-bottom:8px}
.plan-scale{font-size:14px;color:var(--text-2);margin-bottom:32px}
.plan-list{list-style:none;display:grid;gap:16px;margin-bottom:40px;flex:1}
.plan-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.plan-list li svg{flex-shrink:0;margin-top:4px;color:currentColor}

.faq{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;display:flex;justify-content:space-between;padding:28px 0;background:none;border:none;color:var(--text);font-family:var(--font-serif);font-size:20px;font-weight:500;cursor:pointer;text-align:left}
.faq-icon{width:24px;height:24px;position:relative}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:currentColor;transition:all .3s}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.faq-a p{padding:0 40px 28px 0;color:var(--text-2);font-size:16px}

.cta{text-align:center;padding:clamp(60px,8vw,100px) 32px;background:var(--bg-alt);border-radius:var(--radius);border:1px solid var(--border)}
.cta h2{font-family:var(--font-serif);font-size:clamp(2rem,4vw,3rem);font-weight:500;margin-bottom:20px}
.cta-actions{display:flex;gap:16px;justify-content:center;margin-top:40px}

.footer{padding:80px 0 40px;background:var(--bg-alt);border-top:1px solid var(--border)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px;margin-bottom:64px}
.foot-brand p{color:var(--text-2);font-size:15px;margin-top:24px;max-width:300px}
.foot-col h5{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin-bottom:24px}
.foot-col a,.foot-col p{display:block;color:var(--text-2);font-size:15px;margin-bottom:16px}
.foot-bottom{display:flex;justify-content:space-between;font-size:13px;color:var(--text-3);padding-top:32px;border-top:1px solid var(--border)}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0s)}
.reveal.visible{opacity:1;transform:none}

@media (max-width:1080px){.steps{grid-template-columns:repeat(2,1fr)}.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:900px){.nav-links,.nav-cta{display:none}.nav-toggle{display:block}.split{grid-template-columns:1fr}}
@media (max-width:640px){.container{padding:0 24px}.steps{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}.cta-actions .btn{width:100%}}