*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6;color:#111}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{position:sticky;top:0;background:#fff;border-bottom:1px solid #eee;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;letter-spacing:.2px}
a{color:#111}
nav a{margin-left:16px;text-decoration:none;color:#333}
nav .btn.small{padding:6px 10px;border-radius:8px;border:1px solid #111;background:#111;color:#fff}
nav a:hover{text-decoration:underline}
.hero{background:linear-gradient(180deg,#f6f7fb,#ffffff);padding:84px 0}
.hero-inner h1{font-size:40px;line-height:1.15;margin:0 0 12px}
.hero p{max-width:800px}
.cta .btn{display:inline-block;margin-top:12px;margin-right:8px}
.section{padding:64px 0}
.section.alt{background:#fafafa}
.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
@media(max-width:820px){.two-col{grid-template-columns:1fr}}
.shadow{box-shadow:0 10px 25px rgba(0,0,0,.08);border-radius:12px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.cards{grid-template-columns:1fr}}
.card{padding:20px;border:1px solid #eee;border-radius:12px;background:#fff}
h2{margin-top:0;font-size:28px}
h3{margin:0 0 8px}
p{margin:0 0 12px}
ul.check{padding-left:18px}
ul.check li{margin-bottom:6px}
label{display:block;margin-bottom:8px;font-weight:600}
input,textarea,select{width:100%;padding:10px;border:1px solid #ddd;border-radius:10px;margin-top:4px}
.btn{padding:12px 18px;border-radius:10px;border:1px solid #111;background:#111;color:#fff;text-decoration:none;cursor:pointer}
.btn.ghost{background:#fff;color:#111}
.btn:hover{opacity:.9}
.notice{background:#fff8e1;border:1px solid #ffe08a;padding:12px;border-radius:10px}
.small{font-size:12px;color:#666}
textarea.output{height:280px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center}
.modal .panel{background:#fff;border-radius:16px;max-width:560px;width:92%;padding:20px;border:1px solid #eee}
.modal h3{margin-top:0}
.opt{display:grid;grid-template-columns:1fr;gap:8px;margin:12px 0}
.opt button{padding:12px;border:1px solid #ddd;border-radius:12px;background:#fff;cursor:pointer}
.opt button:hover{border-color:#111}
.hidden{display:none}