:root{
  --navy:#1d3557;
  --navy-2:#27466f;
  --red:#d6404a;
  --red-soft:#fdecec;
  --cream:#fbf8f3;
  --paper:#ffffff;
  --ink:#1f2933;
  --muted:#5f6b7a;
  --line:#e3ddd3;
  --ok:#1f8a5b;
  --radius:16px;
  --shadow:0 10px 30px rgba(29,53,87,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--cream);color:var(--ink);
  font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic UI",sans-serif;
  line-height:1.7;font-size:16px;
}
a{color:inherit}
img{max-width:100%;display:block}
.demo-bar{
  background:var(--navy);color:#fff;font-size:12px;text-align:center;
  padding:6px 16px;letter-spacing:.02em;
}
.demo-bar a{color:#ffd9db;margin-left:6px}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.id{display:block;color:var(--muted);font-size:.86em;font-weight:400;line-height:1.5}
.id-inline{color:var(--muted);font-weight:400;font-size:.9em}

/* header */
.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;color:var(--navy)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(180deg,var(--red) 0 50%,#fff 50% 100%);
  border:2px solid var(--navy);position:relative;flex:none;
}
.logo-mark::after{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:var(--red);right:-6px;bottom:-6px;border:2px solid #fff}
.logo small{display:block;font-size:10px;color:var(--muted);font-weight:500;letter-spacing:.08em}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--red);color:#fff;text-decoration:none;font-weight:700;
  border:none;border-radius:999px;padding:14px 26px;font-size:16px;cursor:pointer;
  box-shadow:0 6px 16px rgba(214,64,74,.28);font-family:inherit;line-height:1.3;
}
.btn:hover{filter:brightness(1.05)}
.btn-sm{padding:9px 16px;font-size:14px;box-shadow:none}
.btn-ghost{background:#fff;color:var(--navy);border:2px solid var(--navy);box-shadow:none}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* hero */
.hero{padding:40px 0 56px;background:
  radial-gradient(circle at 85% 10%,#fde3e4 0,transparent 40%),
  radial-gradient(circle at 5% 90%,#e2ebf6 0,transparent 45%),var(--cream)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:var(--red-soft);color:var(--red);font-weight:700;font-size:13px;border-radius:999px;padding:4px 12px;margin-bottom:14px}
.hero h1{font-size:40px;line-height:1.35;margin:0 0 6px;color:var(--navy)}
.hero h1 .id{font-size:18px;margin-top:8px}
.hero p.lead{font-size:17px;margin:18px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px;padding:0;list-style:none}
.hero-points li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:500}
.hero-note{font-size:13px;color:var(--muted);margin-top:12px}

/* phone mock */
.phone{
  width:270px;margin:0 auto;background:#111;border-radius:38px;padding:12px;
  box-shadow:0 30px 60px rgba(29,53,87,.25);transform:rotate(2deg)
}
.phone-screen{background:#fff;border-radius:28px;overflow:hidden;height:520px;display:flex;flex-direction:column}
.phone-top{background:var(--navy);color:#fff;padding:22px 16px 14px;font-size:12px}
.phone-top b{display:block;font-size:15px}
.phone-bar{height:6px;background:#e9eef5;border-radius:6px;margin-top:10px;overflow:hidden}
.phone-bar i{display:block;width:58%;height:100%;background:var(--red)}
.phone-body{padding:14px 14px;font-size:12px;flex:1}
.phone-q{font-weight:700;margin:4px 0 8px;font-size:13px}
.phone-q span{display:block;font-weight:400;color:var(--muted);font-size:11px}
.phone-opt{border:1.5px solid var(--line);border-radius:12px;padding:9px 12px;margin-bottom:8px;display:flex;justify-content:space-between}
.phone-opt.on{border-color:var(--red);background:var(--red-soft);font-weight:700}
.phone-opt small{color:var(--muted)}
.phone-next{margin:6px 14px 18px;background:var(--red);color:#fff;text-align:center;border-radius:999px;padding:11px;font-weight:700;font-size:13px}

/* sections */
section{padding:60px 0}
.sec-title{text-align:center;margin:0 0 34px}
.sec-title h2{font-size:28px;margin:0;color:var(--navy);line-height:1.4}
.sec-title .id{font-size:15px;margin-top:4px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{background:#fff;border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);position:relative}
.step-num{width:40px;height:40px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
.step h3{margin:0 0 8px;font-size:18px;line-height:1.45}
.step p{margin:0;font-size:14px;color:var(--muted)}
.get{background:#fff}
.get-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.get-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--cream)}
.get-card h3{margin:0 0 10px;font-size:19px;color:var(--navy);line-height:1.45}
.get-card ul{margin:0;padding-left:1.2em;font-size:14px}
.lang-sample{margin-top:14px;background:#fff;border-radius:12px;padding:14px;font-size:14px;border-left:4px solid var(--red)}
.lang-sample .tag{display:inline-block;font-size:11px;font-weight:700;border-radius:4px;padding:1px 6px;margin-right:6px;vertical-align:1px}
.tag-ja{background:#e2ebf6;color:var(--navy)}
.tag-hi{background:#fff1d6;color:#8a5a00}
.tag-id{background:var(--red-soft);color:var(--red)}
.lang-sample p{margin:4px 0}
.notes{max-width:760px;margin:0 auto;background:#fff;border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow)}
.notes li{margin-bottom:10px}
.cta{background:var(--navy);color:#fff;text-align:center}
.cta h2{margin:0 0 6px;font-size:26px;line-height:1.4}
.cta .id{color:#c7d3e3}
.cta .btn{margin-top:24px}
footer{background:#14263f;color:#9fb0c6;font-size:12px;text-align:center;padding:22px 16px}

/* ================= form ================= */
.form-shell{max-width:620px;margin:0 auto;padding:22px 16px 60px}
.progress{position:sticky;top:60px;z-index:20;background:var(--cream);padding:12px 0 10px}
.progress-head{display:flex;justify-content:space-between;font-size:13px;font-weight:700;color:var(--navy)}
.progress-track{height:8px;background:#e6e0d6;border-radius:8px;overflow:hidden;margin-top:6px}
.progress-track i{display:block;height:100%;background:var(--red);border-radius:8px;transition:width .35s}
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 20px;margin-top:10px}
.card h2{margin:0 0 4px;font-size:22px;color:var(--navy);line-height:1.4}
.card h2 .id{font-size:14px}
.card .hint{font-size:13px;color:var(--muted);margin:6px 0 4px}
.q{margin-top:24px}
.q-label{font-weight:700;font-size:16px;line-height:1.45;display:block;margin-bottom:10px}
.q-label .id{font-size:13px;margin-top:2px}
.req{display:inline-block;background:var(--red);color:#fff;font-size:10px;border-radius:4px;padding:1px 6px;margin-left:6px;vertical-align:2px;font-weight:700}
.opt-note{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.opts.one{grid-template-columns:1fr}
.opt{position:relative}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt label{
  display:block;border:1.5px solid var(--line);border-radius:12px;padding:11px 12px 10px 38px;
  cursor:pointer;font-size:15px;line-height:1.35;background:#fff;min-height:100%;position:relative;
  transition:border-color .15s,background .15s;
}
.opt label .id{font-size:12px;margin-top:2px}
.opt label::before{
  content:"";position:absolute;left:12px;top:13px;width:16px;height:16px;border:2px solid #b9b2a6;border-radius:50%;background:#fff
}
.opt input[type=checkbox]+label::before{border-radius:5px}
.opt input:checked+label{border-color:var(--red);background:var(--red-soft);font-weight:700}
.opt input:checked+label::before{border-color:var(--red);background:var(--red);box-shadow:inset 0 0 0 3px #fff}
.opt input[type=checkbox]:checked+label::before{box-shadow:none;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='white' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.opt input:focus-visible+label{outline:3px solid #9ab4d6;outline-offset:2px}
.opt input:disabled+label{opacity:.4;cursor:not-allowed}
.field{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;font-size:16px;font-family:inherit;background:#fff}
.field:focus{outline:none;border-color:var(--navy)}
.row3{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:8px}
.err{color:var(--red);font-size:13px;font-weight:700;margin-top:6px;display:none}
.q.invalid .err{display:block}
.q.invalid .field,.q.invalid .opt label{border-color:#f0a6aa}
.nav-btns{display:flex;gap:10px;margin-top:28px}
.nav-btns .btn{flex:1}
.confirm-list{margin:16px 0 0;padding:0;list-style:none;font-size:14px}
.confirm-list li{display:grid;grid-template-columns:40% 60%;border-bottom:1px solid var(--line);padding:9px 0;gap:8px}
.confirm-list li b{color:var(--muted);font-weight:500;font-size:13px;line-height:1.45}
.confirm-edit{background:none;border:none;color:var(--navy);text-decoration:underline;font-size:13px;cursor:pointer;padding:0;font-family:inherit}
.sending{text-align:center;padding:40px 10px}
.spinner{width:46px;height:46px;border:4px solid #e6e0d6;border-top-color:var(--red);border-radius:50%;margin:0 auto 18px;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.done{text-align:center}
.done-icon{width:76px;height:76px;border-radius:50%;background:#e3f5ec;margin:6px auto 14px;display:flex;align-items:center;justify-content:center}
.done h2{font-size:22px}
.done p{font-size:15px}
.done .box{background:var(--cream);border-radius:12px;padding:14px;text-align:left;font-size:14px;margin:18px 0}
.demo-admin-link{margin-top:26px;border:2px dashed #9ab4d6;border-radius:14px;padding:16px;background:#f2f6fb;text-align:left;font-size:13px}
.demo-admin-link b{color:var(--navy)}
.sample-fill{display:block;margin:10px auto 0;background:none;border:1px dashed var(--muted);color:var(--muted);border-radius:999px;padding:6px 14px;font-size:12px;cursor:pointer;font-family:inherit}
.hidden{display:none!important}

@media (max-width:860px){
  .hero .wrap{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:30px}
  .steps,.get-grid{grid-template-columns:1fr}
  section{padding:46px 0}
  .sec-title h2{font-size:23px}
  .phone{transform:none;width:250px}
  .phone-screen{height:470px}
}
@media (max-width:420px){
  .opt label{padding:10px 8px 9px 34px;font-size:14px}
  .opt label::before{left:10px}
  .nav-btns .btn{padding:14px 10px;font-size:15px}
  .row3{grid-template-columns:1fr 1fr 1fr}
  .card{padding:22px 16px}
  .hero h1{font-size:27px}
}