@charset "UTF-8";
:root{
  color-scheme: light;
  --ink:#1c1917;
  --ink-2:#2a2623;
  --paper:#ffffff;
  --card:#f4f4f2;
  --gray:#e8e8e8;
  --mute:#6b6661;
  --line:rgba(28,25,23,.09);
  --line-dark:rgba(255,255,255,.07);
  --accent:#e11d2e;        /* Vietnam red */
  --accent-2:#fb8619;      /* warm orange for CTA energy */
  --grad:linear-gradient(90deg,var(--accent) 0%,var(--accent-2) 100%);
  --gold:#f5c518;
  --lime:#c6f23a;
  --teal:#0d9488;
  --f-sans:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  --f-serif:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-en:"Inter","Noto Sans JP","Helvetica Neue",Arial,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --col:480px;
  --grid:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--gray);
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:40px 40px;
  color:var(--ink);
  font-family:var(--f-sans);
  font-weight:500;
  font-size:15px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--accent-2);outline-offset:3px}
h1,h2,h3,p,ul,ol,li{margin:0}
ul,ol{padding:0;list-style:none}

.ph{
  display:inline;
  background:linear-gradient(transparent 55%, #ffe566 55%);
  padding:0 .15em;
  font-weight:900;
  border-radius:2px;
}
.grad{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.grid-w{
  background-color:var(--paper);
  background-image:
    linear-gradient(to right,var(--line) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:var(--grid) var(--grid);
}
.grid-d{
  background-color:var(--ink);
  color:var(--paper);
  background-image:
    linear-gradient(to right,var(--line-dark) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line-dark) 1px,transparent 1px);
  background-size:30px 30px;
}

/* shell */
.side{display:none}
.lp{
  position:relative;
  max-width:var(--col);
  margin:0 auto;
  background:var(--paper);
  overflow:hidden;
}
@media (min-width:1024px){
  .shell{display:grid;grid-template-columns:1fr var(--col) 1fr;min-height:100vh}
  .lp{border-inline:2px solid var(--ink);box-shadow:0 10px 40px rgba(28,25,23,.18)}
  .side{
    display:flex;position:sticky;top:0;height:100vh;
    flex-direction:column;justify-content:center;
    padding:40px clamp(24px,3.4vw,60px);
  }
  .side--l{align-items:flex-end;text-align:right;gap:18px}
  .side--r{align-items:flex-start;gap:18px}
  .side__brand{
    font-family:var(--f-en);font-weight:900;font-size:clamp(28px,3vw,48px);
    letter-spacing:-.03em;line-height:1.05;
  }
  .side__sub{font-size:13px;color:var(--mute);max-width:220px;line-height:1.6}
  .side__tag{
    display:inline-block;padding:6px 12px;border:1.5px solid var(--ink);
    font-family:var(--f-en);font-size:11px;font-weight:700;letter-spacing:.08em;
  }
}

/* header */
.hd{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:10px 14px;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1.5px solid var(--ink);
}
.hd__logo{
  font-family:var(--f-en);font-weight:900;font-size:13px;letter-spacing:.04em;
  display:flex;flex-direction:column;line-height:1.15;
}
.hd__logo span{font-family:var(--f-sans);font-size:10px;font-weight:700;color:var(--mute);letter-spacing:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 18px;border:none;border-radius:999px;cursor:pointer;
  font-family:var(--f-sans);font-weight:900;font-size:14px;line-height:1.3;
  color:#fff;background:var(--grad);
  box-shadow:0 6px 0 rgba(180,40,20,.35), 0 12px 24px rgba(225,29,46,.25);
  transition:transform .15s ease, box-shadow .15s ease;
  text-align:center;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(2px);box-shadow:0 2px 0 rgba(180,40,20,.35)}
.btn--sm{padding:8px 14px;font-size:12px;box-shadow:0 3px 0 rgba(180,40,20,.35)}
.btn--block{width:100%}
.btn--ghost{
  background:transparent;color:var(--paper);border:2px solid var(--paper);
  box-shadow:none;
}
.btn--lime{background:var(--lime);color:var(--ink);box-shadow:0 6px 0 #8fb01f}

/* FV */
.fv{padding:28px 18px 36px;position:relative}
.fv__eyebrow{
  display:inline-block;margin-bottom:14px;padding:6px 12px;
  background:var(--ink);color:var(--paper);
  font-size:12px;font-weight:700;border-radius:4px;
}
.fv__eyebrow em{color:var(--gold);font-style:normal}
.fv h1{
  font-family:var(--f-serif);font-weight:900;font-size:clamp(26px,7vw,34px);
  line-height:1.35;letter-spacing:-.02em;margin-bottom:18px;
}
.fv h1 .mark{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.fv__term{
  background:var(--ink);color:#e9e6df;border-radius:12px;padding:14px 14px 12px;
  font-family:var(--f-mono);font-size:12px;line-height:1.7;margin-bottom:18px;
  border:1px solid rgba(255,255,255,.08);
}
.fv__term .ok{color:var(--lime)}
.fv__term .cmd{color:var(--accent-2)}
.fv__lead{
  font-size:15px;font-weight:700;margin-bottom:20px;line-height:1.7;
}
.fv__platforms{
  display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 10px;border:1.5px solid var(--ink);border-radius:999px;
  font-family:var(--f-en);font-size:11px;font-weight:700;background:var(--paper);
}
.chip i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block}
.chip--fb i{background:#1877f2}
.chip--tt i{background:#010101}
.chip--zl i{background:#0068ff}
.chip--ig i{background:linear-gradient(45deg,#f58529,#dd2a7b,#8134af)}

/* section common */
.sec{padding:48px 18px}
.sec__en{
  font-family:var(--f-en);font-weight:800;font-size:11px;letter-spacing:.14em;
  color:var(--accent);margin-bottom:8px;
}
.grid-d .sec__en{color:var(--gold)}
.sec__h{
  font-family:var(--f-serif);font-weight:900;font-size:clamp(22px,5.8vw,28px);
  line-height:1.4;margin-bottom:12px;
}
.sec__p{color:var(--mute);font-size:14px;margin-bottom:24px}
.grid-d .sec__p{color:#a8a39b}

/* about */
.roles{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
.role{
  background:var(--card);border:1.5px solid var(--ink);border-radius:12px;padding:14px;
}
.role__tag{font-family:var(--f-en);font-size:10px;font-weight:800;color:var(--accent);margin-bottom:4px}
.role__name{font-weight:900;font-size:14px;margin-bottom:4px}
.role__desc{font-size:12px;color:var(--mute);line-height:1.5}

/* promises */
.promise{
  margin-bottom:28px;border:1.5px solid var(--ink);border-radius:16px;overflow:hidden;
  background:var(--paper);
}
.promise__head{
  padding:14px 16px;background:var(--ink);color:var(--paper);
  display:flex;align-items:baseline;gap:10px;
}
.promise__num{font-family:var(--f-en);font-weight:900;font-size:11px;letter-spacing:.1em;color:var(--gold)}
.promise__bad{font-weight:900;font-size:14px;line-height:1.4}
.promise__body{padding:16px}
.promise__good{
  font-family:var(--f-serif);font-weight:900;font-size:18px;line-height:1.45;margin-bottom:12px;
}
.promise__ui{
  background:var(--ink);color:#e9e6df;border-radius:10px;padding:12px;
  font-family:var(--f-mono);font-size:11px;line-height:1.65;margin-bottom:12px;
}
.promise__ui .hi{color:var(--lime)}
.promise__txt{font-size:13.5px;color:var(--mute);line-height:1.8}

/* must band */
.must{padding:40px 18px;text-align:center}
.must__kicker{font-size:14px;font-weight:700;opacity:.85;margin-bottom:8px}
.must__h{
  font-family:var(--f-serif);font-weight:900;font-size:clamp(24px,6.5vw,32px);
  line-height:1.35;margin-bottom:22px;
}
.must__h em{font-style:normal;color:var(--gold)}

/* voice */
.voices{display:flex;flex-direction:column;gap:14px}
.voice{
  background:var(--paper);border:1.5px solid var(--ink);border-radius:14px;padding:16px;
  color:var(--ink);
}
.voice__meta{font-size:11px;font-weight:700;color:var(--mute);margin-bottom:6px}
.voice__result{
  font-family:var(--f-serif);font-weight:900;font-size:17px;line-height:1.4;margin-bottom:8px;
}
.voice__body{font-size:13px;color:var(--mute);line-height:1.75}

/* services */
.svc-list{display:grid;gap:8px}
.svc-list li{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;border:1.5px solid rgba(255,255,255,.15);
  border-radius:10px;background:rgba(255,255,255,.04);font-weight:700;font-size:14px;
}
.svc-list li::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);flex-shrink:0;
}

/* flow */
.flow{display:flex;flex-direction:column;gap:0;position:relative}
.flow__item{
  display:grid;grid-template-columns:48px 1fr;gap:12px;padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.flow__item:last-child{border-bottom:0}
.flow__num{
  width:48px;height:48px;border-radius:50%;background:var(--ink);color:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--f-en);font-weight:900;font-size:14px;
}
.flow__title{font-weight:900;font-size:16px;margin-bottom:4px}
.flow__desc{font-size:13px;color:var(--mute);line-height:1.7}

/* FAQ */
.faq details{
  border:1.5px solid var(--ink);border-radius:12px;padding:0;margin-bottom:10px;
  background:var(--paper);overflow:hidden;
}
.faq summary{
  list-style:none;cursor:pointer;padding:14px 16px;font-weight:900;font-size:14px;
  display:flex;justify-content:space-between;gap:12px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--f-en);font-weight:900;font-size:18px;color:var(--accent)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 16px 16px;font-size:13.5px;color:var(--mute);line-height:1.8}

/* close / form */
.close{padding:48px 18px 56px}
.close__h{
  font-family:var(--f-serif);font-weight:900;font-size:clamp(22px,5.8vw,28px);
  line-height:1.4;margin-bottom:10px;text-align:center;
}
.close__p{text-align:center;color:#a8a39b;font-size:13px;margin-bottom:24px}
.form{
  background:rgba(255,255,255,.06);border:1.5px solid rgba(255,255,255,.12);
  border-radius:16px;padding:18px;
}
.form label{display:block;font-size:12px;font-weight:700;margin-bottom:6px}
.req{
  display:inline-block;margin-left:6px;padding:1px 6px;border-radius:3px;
  background:var(--accent);color:#fff;font-size:10px;font-weight:900;
}
.form input,.form textarea,.form select{
  width:100%;padding:12px 12px;margin-bottom:14px;border-radius:8px;
  border:1.5px solid rgba(255,255,255,.15);background:rgba(0,0,0,.25);
  color:var(--paper);font-family:var(--f-sans);font-size:14px;
}
.form input::placeholder,.form textarea::placeholder{color:#6b6661}
.form textarea{min-height:110px;resize:vertical}
.form__note{font-size:11px;color:#a8a39b;text-align:center;margin-top:12px;line-height:1.6}

.ft{
  padding:24px 18px 100px;text-align:center;font-size:11px;color:#a8a39b;
  border-top:1px solid rgba(255,255,255,.08);
}
.ft a{text-decoration:underline;text-underline-offset:3px}
.ft__brand{font-family:var(--f-en);font-weight:900;color:var(--paper);font-size:13px;margin-bottom:8px}

/* sticky bottom CTA mobile */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  background:rgba(28,25,23,.92);backdrop-filter:blur(10px);
  border-top:1.5px solid rgba(255,255,255,.1);
  display:flex;justify-content:center;
}
.sticky-cta .btn{width:min(480px,100%)}
@media (min-width:1024px){
  .sticky-cta{display:none}
  .ft{padding-bottom:32px}
}

/* ticker */
.ticker{
  overflow:hidden;border-block:1.5px solid var(--ink);background:var(--gold);color:var(--ink);
}
.ticker__track{
  display:flex;gap:28px;white-space:nowrap;padding:8px 0;
  animation:marquee 28s linear infinite;font-family:var(--f-en);font-weight:800;font-size:12px;
  letter-spacing:.06em;width:max-content;
}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* note banner */
.note-banner{
  background:#fff7d6;border:1.5px solid #e6c84a;color:#5c4a00;
  padding:10px 14px;font-size:12px;font-weight:700;line-height:1.55;
}

[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s ease, transform .5s ease}
[data-reveal].is-in{opacity:1;transform:none}

@media (max-width: 1023px){
  .close{padding-bottom:120px}
}