@charset "UTF-8";

/* ===== tokens ===== */
:root{
  --paper:#fffaef;
  --paper-2:#fffdf6;
  --ink:#303436;
  --ink-2:#5f6467;
  --blue:#5b3c34;
  --red:#5b3c34;
  --line:#e4ddc9;
  --radius:14px;
  --maxw:1080px;
  --gutter:24px;
}

/* ===== reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px}
body{
  margin:0;
  background:var(--paper) url("images/paper-tile.webp") repeat;
  background-size:300px 300px;
  color:var(--ink);
  font-family:"Zen Kaku Gothic Antique","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  font-weight:500;
  line-height:1.9;
  letter-spacing:.04em;
  font-size:16px;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
ul{margin:0;padding:0;list-style:none}

/* ===== layout ===== */
.wrap{width:min(100% - var(--gutter)*2,var(--maxw));margin-inline:auto}
.section{padding:88px 0}
.section + .section{border-top:1px solid var(--line)}

/* ===== header ===== */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;gap:24px;height:64px}
.header__logo{
	font-weight:900;
	font-size:18px;
	letter-spacing:.12em;
	text-decoration:none;
	white-space:nowrap}
.header__nav{margin-left:auto;overflow-x:auto}
.header__nav ul{display:flex;gap:22px}
.header__nav a{
  text-decoration:none;font-size:13px;color:var(--ink-2);
  white-space:nowrap;padding-bottom:2px;border-bottom:1px solid transparent;
}
.header__nav a:hover{color:var(--ink);border-bottom-color:var(--ink)}

/* ===== headings ===== */
.eyebrow{
  font-size:12px;letter-spacing:.22em;color:var(--blue);
  font-weight:900;margin:0 0 10px;text-transform:uppercase;
}
.h2{font-size:clamp(24px,3.4vw,34px);font-weight:900;line-height:1.55;margin:0 0 28px;letter-spacing:.06em}
.body{font-size:15px;color:var(--ink-2);margin:0 0 18px}
.body:last-child{margin-bottom:0}
.mark{background:linear-gradient(transparent 62%,rgba(91,60,52,.22) 0);font-weight:900;color:var(--ink)}

/* ===== quote block ===== */
.quote{
  padding:6px 0;
  font-size:17px;line-height:2.1;font-weight:900;
}

/* ===== outline table ===== */
.spec{border-top:1px solid var(--line)}
.spec__row{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:18px 2px}
.spec__key{font-size:14px;font-weight:900}
.spec__val{font-size:14px;color:var(--ink-2);margin:0}
.spec__val p{margin:0 0 4px}
.spec__val p:last-child{margin-bottom:0}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  background:var(--ink);color:var(--paper-2);
  font-size:14px;font-weight:900;text-decoration:none;letter-spacing:.06em;
  transition:opacity .2s ease;
}
.btn:hover{opacity:.82}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}

/* ===== sea panel ===== */
.sea{
  background:#5b3c34;
  color:#fff;
  border-radius:var(--radius);
  padding:52px clamp(24px,5vw,64px);
  max-width:840px;
  margin-inline:auto;
}
.sea__title{margin-bottom:22px}
.sea__txt{font-size:15px;line-height:2.1;margin:0;color:rgba(255,255,255,.92);max-width:640px}
.eyebrow--on-blue{color:#ecdcd4}