:root{
    --navy:#14213D;
    --navy-deep:#0B1530;
    --gold:#C9A227;
    --gold-soft:#E9D58C;
    --mist:#EEF1F6;
    --ink:#1C1F26;
    --ink-soft:#5A6070;
    --line:#D6DBE5;
    --white:#FFFFFF;
    --error:#B3261E;
    --ok:#1F6F43;
    --serif:"Shippori Mincho B1","Hiragino Mincho ProN",serif;
    --sans:"Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",sans-serif;
    --radius:6px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.8;font-size:15px}
  img{max-width:100%}
  a{color:inherit}
  h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.35;letter-spacing:.02em}
  .wrap{width:min(1120px,92vw);margin:0 auto}
  :focus-visible{outline:2px solid var(--gold);outline-offset:3px}
  @media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

  /* ---------- header ---------- */
  header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .logo{font-family:var(--serif);font-size:20px;letter-spacing:.14em;color:var(--navy);text-decoration:none;display:flex;align-items:center;gap:10px}
  .logo i{display:inline-block;width:22px;height:14px;border-radius:2px;background:linear-gradient(120deg,var(--navy) 55%,var(--gold) 55%)}
  .nav ul{display:flex;gap:28px;list-style:none;font-size:14px}
  .nav ul a{text-decoration:none;color:var(--ink-soft)}
  .nav ul a:hover{color:var(--navy)}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--sans);font-weight:500;font-size:15px;padding:12px 26px;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;text-decoration:none;transition:background .15s,color .15s,border-color .15s}
  .btn-primary{background:var(--navy);color:#fff}
  .btn-primary:hover{background:var(--navy-deep)}
  .btn-ghost{background:transparent;color:var(--navy);border-color:var(--navy)}
  .btn-ghost:hover{background:var(--mist)}
  .btn-gold{background:var(--gold);color:var(--navy-deep)}
  .btn-gold:hover{background:#b8921f}
  .btn[disabled]{opacity:.5;cursor:not-allowed}
  .nav .btn{padding:9px 18px;font-size:14px}
  @media (max-width:760px){.nav ul{display:none}}

  /* ---------- hero ---------- */
  .hero{background:var(--navy);color:#fff;overflow:hidden;position:relative}
  .hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 70% 60% at 85% 10%,rgba(201,162,39,.22),transparent 60%)}
  .hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:48px;padding:88px 0 96px}
  .hero h1{font-size:clamp(34px,4.4vw,56px);color:#fff}
  .hero p.lead{margin:24px 0 36px;color:rgba(255,255,255,.78);font-size:16px;max-width:34em}
  .hero .actions{display:flex;gap:14px;flex-wrap:wrap}
  .hero .fine{margin-top:22px;font-size:12px;color:rgba(255,255,255,.55)}
  @media (max-width:860px){.hero .wrap{grid-template-columns:1fr;padding:56px 0 64px}}

  /* the card image */
  .card-stage{perspective:1400px;display:flex;justify-content:center}
  .card-img{width:min(440px,100%);height:auto;border-radius:18px;display:block;
    box-shadow:0 40px 80px -30px rgba(0,0,0,.7);
    transform:rotateY(-14deg) rotateX(8deg);animation:settle 1.4s cubic-bezier(.2,.8,.2,1) both}
  @keyframes settle{from{transform:rotateY(-34deg) rotateX(16deg) translateY(20px);opacity:0}to{transform:rotateY(-14deg) rotateX(8deg);opacity:1}}

  /* ---------- sections ---------- */
  section{padding:88px 0}
  .sec-head{display:grid;grid-template-columns:1fr 2fr;gap:40px;margin-bottom:48px;align-items:end}
  .sec-head h2{font-size:clamp(26px,3vw,34px);color:var(--navy)}
  .sec-head p{color:var(--ink-soft)}
  @media (max-width:860px){.sec-head{grid-template-columns:1fr;gap:12px}}

  /* benefits */
  .benefits{background:var(--white)}
  .bene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
  .bene{padding:32px 28px 32px 0;border-bottom:1px solid var(--line)}
  .bene:not(:nth-child(3n)){border-right:1px solid var(--line);}
  .bene:nth-child(n+2){padding-left:28px}
  .bene .big{font-family:var(--serif);font-size:44px;color:var(--navy);line-height:1;margin-bottom:12px}
  .bene .big span{font-size:18px;margin-left:4px}
  .bene h3{font-size:17px;color:var(--ink);margin-bottom:8px;font-family:var(--sans);font-weight:700}
  .bene p{color:var(--ink-soft);font-size:14px}
  @media (max-width:860px){.bene-grid{grid-template-columns:1fr}.bene{border-right:none!important;padding-left:0!important}}

  /* lineup */
  .lineup{background:var(--mist)}
  .plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .plan{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;display:flex;flex-direction:column}
  .plan.feat{border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,162,39,.18)}
  .plan .mini{width:100%;height:auto;display:block;border-radius:10px;margin-bottom:22px;box-shadow:0 12px 28px -14px rgba(20,33,61,.5)}
  .plan h3{font-size:22px;color:var(--navy);margin-bottom:6px}
  .plan .fee{font-size:14px;color:var(--ink-soft);margin-bottom:18px}
  .plan .fee strong{font-size:22px;color:var(--ink);font-family:var(--serif);font-weight:500}
  .plan ul{list-style:none;flex:1;margin-bottom:24px}
  .plan li{padding:9px 0;border-top:1px dashed var(--line);font-size:14px;display:flex;gap:10px}
  .plan li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);flex-shrink:0;margin-top:11px}
  @media (max-width:860px){.plans{grid-template-columns:1fr}}

  /* steps */
  .flow{background:#fff}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
  .step{position:relative;padding:24px 0 0;border-top:2px solid var(--navy)}
  .step::before{counter-increment:s;content:counter(s,decimal-leading-zero);font-family:var(--serif);font-size:32px;color:var(--gold);display:block;line-height:1;margin-bottom:12px}
  .step h3{font-family:var(--sans);font-size:16px;font-weight:700;margin-bottom:6px}
  .step p{font-size:14px;color:var(--ink-soft)}
  @media (max-width:860px){.steps{grid-template-columns:1fr 1fr}}

  /* ---------- application form ---------- */
  .apply{background:var(--navy);color:#fff}
  .apply .sec-head h2{color:#fff}
  .apply .sec-head p{color:rgba(255,255,255,.7)}
  .form-shell{background:#fff;color:var(--ink);border-radius:var(--radius);overflow:hidden;max-width:820px;margin:0 auto}
  .progress{display:flex;border-bottom:1px solid var(--line)}
  .progress div{flex:1;padding:14px 8px;text-align:center;font-size:13px;color:var(--ink-soft);position:relative}
  .progress div::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:transparent}
  .progress div.on{color:var(--navy);font-weight:700}
  .progress div.on::after{background:var(--gold)}
  .progress div.done{color:var(--ok)}
  .panel{display:none;padding:36px 40px 40px}
  .panel.on{display:block;animation:fadein .25s ease}
  @keyframes fadein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
  .panel h3{font-family:var(--sans);font-size:20px;font-weight:700;color:var(--navy);margin-bottom:6px}
  .panel .note{color:var(--ink-soft);font-size:14px;margin-bottom:28px}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
  .field{display:flex;flex-direction:column;gap:6px}
  .field.full{grid-column:1/-1}
  label{font-size:14px;font-weight:500;display:flex;align-items:center;gap:8px}
  .req{font-size:11px;color:#fff;background:var(--error);padding:1px 6px;border-radius:3px;font-weight:500}
  .opt{font-size:11px;color:var(--ink-soft);border:1px solid var(--line);padding:1px 6px;border-radius:3px}
  input[type=text],input[type=email],input[type=tel],input[type=date],select{
    font:inherit;padding:11px 12px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;width:100%;color:var(--ink);transition:border-color .15s}
  input:focus,select:focus{border-color:var(--navy);outline:none;box-shadow:0 0 0 3px rgba(20,33,61,.12)}
  .field.err input,.field.err select{border-color:var(--error)}
  .hint{font-size:12px;color:var(--ink-soft)}
  .msg{font-size:12px;color:var(--error);min-height:1.2em}
  .radios{display:flex;gap:10px;flex-wrap:wrap}
  .radios label{border:1px solid var(--line);padding:10px 16px;border-radius:var(--radius);cursor:pointer;font-weight:400}
  .radios input{accent-color:var(--navy)}
  .radios label:has(:checked){border-color:var(--navy);background:var(--mist)}
  .card-pick{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
  .card-pick label{border:1px solid var(--line);border-radius:var(--radius);padding:14px;cursor:pointer;display:flex;flex-direction:column;gap:8px;font-weight:400}
  .card-pick label:has(:checked){border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,162,39,.2)}
  .card-pick .sw{width:100%;height:auto;display:block;border-radius:6px}
  .card-pick b{font-family:var(--serif);font-weight:500;color:var(--navy)}
  .card-pick small{color:var(--ink-soft);font-size:12px}
  .card-pick input{position:absolute;opacity:0}
  .checks label{font-weight:400;align-items:flex-start;line-height:1.6;padding:6px 0}
  .checks input{margin-top:5px;accent-color:var(--navy)}
  .form-nav{display:flex;justify-content:space-between;gap:12px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
  .yen{position:relative}
  .yen input{padding-right:52px}
  .yen span{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--ink-soft)}

  /* confirm */
  .review{border-top:1px solid var(--line)}
  .review dl{display:grid;grid-template-columns:180px 1fr;border-bottom:1px solid var(--line)}
  .review dt{background:var(--mist);padding:12px 16px;font-size:13px;color:var(--ink-soft)}
  .review dd{padding:12px 16px;font-size:14px}
  .review h4{font-family:var(--sans);font-size:14px;font-weight:700;color:var(--navy);margin:22px 0 8px}
  .review h4:first-child{margin-top:0}
  @media (max-width:640px){.review dl{grid-template-columns:1fr}.review dt{padding-bottom:4px}.review dd{padding-top:0}}

  /* done */
  .done{text-align:center;padding:64px 40px}
  .done .mark{width:72px;height:72px;border-radius:50%;background:var(--mist);margin:0 auto 24px;display:grid;place-items:center;color:var(--ok);font-size:34px}
  .done h3{font-family:var(--serif);font-weight:500;font-size:26px;margin-bottom:12px}
  .done .no{display:inline-block;margin:18px 0 26px;padding:12px 22px;border:1px solid var(--line);border-radius:var(--radius);font-size:15px;letter-spacing:.08em}
  .done .no b{font-family:var(--serif);font-size:22px;color:var(--navy);font-weight:500;margin-left:10px;letter-spacing:.12em}
  .done p{color:var(--ink-soft);font-size:14px}
  .done ol{text-align:left;max-width:440px;margin:24px auto 0;padding-left:1.4em;color:var(--ink-soft);font-size:14px}
  @media (max-width:760px){.panel{padding:28px 20px 32px}.grid2{grid-template-columns:1fr}.card-pick{grid-template-columns:1fr}}

  /* faq */
  .faq{background:#fff}
  .faq details{border-top:1px solid var(--line)}
  .faq details:last-child{border-bottom:1px solid var(--line)}
  .faq summary{cursor:pointer;padding:20px 0;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:20px}
  .faq summary::after{content:"＋";color:var(--gold);flex-shrink:0}
  .faq details[open] summary::after{content:"－"}
  .faq .ans{padding:0 0 20px;color:var(--ink-soft);font-size:14px;max-width:44em}

  footer{background:var(--navy-deep);color:rgba(255,255,255,.7);padding:48px 0 32px;font-size:13px}
  footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
  footer .logo{color:#fff;margin-bottom:12px}
  footer ul{list-style:none}
  footer li{margin:6px 0}
  footer a{text-decoration:none;color:rgba(255,255,255,.7)}
  footer a:hover{color:#fff}
  footer .legal{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:12px;color:rgba(255,255,255,.45)}
  @media (max-width:860px){footer .cols{grid-template-columns:1fr 1fr}}
  .demo-badge{position:fixed;left:12px;bottom:12px;z-index:60;background:#fff;color:var(--ink-soft);border:1px solid var(--line);font-size:11px;padding:6px 10px;border-radius:4px}