:root {
  --forest: #13261c;
  --forest-2: #1d3a2b;
  --moss: #4d6b45;
  --mist: #eef1ec;
  --mist-2: #e1e7df;
  --ink: #17231c;
  --ink-soft: #4a5a50;
  --sun: #f0b547;
  --sun-soft: #f7dca0;
  --line: rgba(23, 35, 28, 0.14);
  --mincho: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --gothic: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --gutter: clamp(16px, 5vw, 72px);
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--mist);
  color: var(--ink);
  font-family: var(--gothic);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  font-feature-settings: "palt";
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--sun); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--sun); color: var(--forest); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; }

.wrap { width: min(var(--max), 100% - var(--gutter) * 2); margin-inline: auto; }

/* ---------- header ---------- */
.site-head {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px var(--gutter);
  color: var(--mist);
  transition: background .4s, color .4s, padding .4s;
}
.site-head.is-solid {
  background: rgba(238, 241, 236, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--ink);
  padding-block: 12px;
  border-bottom: 1px solid var(--line);
}
.logo { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.logo-mark { width: 30px; height: 30px; flex: none; }
.logo-sep { width: 1px; height: 28px; background: currentColor; opacity: .3; }
.logo-name { display: grid; line-height: 1.2; }
.logo-name b { font-family: var(--mincho); font-weight: 500; font-size: 17px; letter-spacing: 0.07em; }
.logo-name small { font-size: 10px; letter-spacing: 0.24em; opacity: .65; margin-top: 3px; }
.nav { display: flex; gap: 28px; align-items: center; font-size: 14px; }
.nav a { text-decoration: none; }
.nav a:not(.btn):hover { text-decoration: underline; text-underline-offset: 6px; }
.nav .btn { padding: 8px 18px; }
@media (max-width: 760px) {
  .nav a:not(.btn) { display: none; }
  .logo-name b { font-size: 15px; }
  .logo { gap: 10px; }
}

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--sun); color: var(--forest);
  font-weight: 700; text-decoration: none; letter-spacing: 0.08em;
  padding: 16px 30px; border-radius: 999px; border: 0; cursor: pointer;
  font-family: var(--gothic); font-size: 15px;
  transition: background .2s, transform .2s;
}
.btn:hover { background: var(--sun-soft); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: inherit; border: 1px solid currentColor; }
.btn-ghost:hover { background: rgba(255,255,255,.08); }

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100svh; overflow: hidden; padding-block: 0;
  background: var(--forest); color: var(--mist);
  display: grid;
}
.hero canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  filter: blur(12px) saturate(1.15);
  transform: scale(1.08);
}
.hero-inner {
  position: relative; z-index: 2;
  width: min(var(--max), 100% - var(--gutter) * 2); margin-inline: auto;
  display: grid; grid-template-columns: 1fr auto; align-items: end;
  gap: 40px; padding: 110px 0 64px; min-height: 100svh;
}
.hero-kanji {
  position: absolute; z-index: 1; pointer-events: none;
  left: -4vw; top: 50%; transform: translateY(-58%);
  font-family: var(--mincho); font-weight: 800;
  font-size: min(58vw, 88vh); line-height: 1;
  color: rgba(247, 220, 160, 0.04);
  -webkit-text-stroke: 1.5px rgba(247, 220, 160, 0.4);
  user-select: none;
}
.hero-lead { max-width: 30em; }
.hero-name { font-family: var(--mincho); font-size: 15px; letter-spacing: 0.16em; margin: 0 0 18px; color: var(--sun-soft); }
.hero-lead p { margin: 0 0 32px; font-size: 15px; color: rgba(238,241,236,.86); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-title {
  writing-mode: vertical-rl;
  font-family: var(--mincho); font-weight: 600;
  font-size: clamp(30px, min(4.6vw, 5.6vh), 62px);
  line-height: 1.55; letter-spacing: 0.14em;
  margin: 0; align-self: center;
  text-shadow: 0 2px 30px rgba(19,38,28,.5);
}
.hero-title span { display: block; }
.hero-title span:nth-child(2) { padding-top: 1.6em; }

.reveal-line { opacity: 0; transform: translateY(-14px); animation: drop 1.4s cubic-bezier(.2,.7,.2,1) forwards; }
.hero-title span:nth-child(1) { animation-delay: .25s; }
.hero-title span:nth-child(2) { animation-delay: .7s; }
.hero-lead.reveal-line { animation-delay: 1.2s; transform: none; }
@keyframes drop { to { opacity: 1; transform: none; } }

@media (max-width: 760px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 110px; padding-bottom: 48px; gap: 36px; }
  .hero-title { order: -1; justify-self: end; font-size: clamp(30px, 9vw, 44px); }
  .hero-kanji { font-size: 120vw; top: 42%; left: -14vw; }
}

/* ---------- sections ---------- */
section { padding-block: clamp(88px, 12vw, 160px); }
.sec-head { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: 32px; margin-bottom: clamp(48px, 7vw, 88px); align-items: end; }
.sec-title { word-break: auto-phrase; font-family: var(--mincho); font-weight: 600; font-size: clamp(28px, 3.6vw, 46px); line-height: 1.35; letter-spacing: 0.08em; margin: 0; }
.sec-title small { display: block; font-family: var(--gothic); font-size: 13px; font-weight: 500; letter-spacing: 0.12em; color: var(--moss); margin-bottom: 14px; }
.sec-desc { margin: 0; color: var(--ink-soft); max-width: 34em; }
@media (max-width: 760px) { .sec-head { grid-template-columns: 1fr; gap: 16px; } }

/* ---------- services ---------- */
.services { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.service {
  display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: 32px; padding: 36px 0; border-bottom: 1px solid var(--line); align-items: baseline;
}
.service h3 { font-family: var(--mincho); font-size: clamp(21px, 2.2vw, 26px); font-weight: 600; margin: 0; letter-spacing: 0.06em; line-height: 1.5; }
.service p { margin: 0; color: var(--ink-soft); font-size: 15px; }
.price { font-family: var(--mincho); text-align: right; white-space: nowrap; }
.price b { font-size: clamp(26px, 2.8vw, 34px); font-weight: 600; letter-spacing: 0.02em; }
.price span { font-size: 14px; margin-left: 2px; }
.service-note { margin-top: 24px; font-size: 13px; color: var(--ink-soft); }
@media (max-width: 760px) {
  .service { grid-template-columns: 1fr; gap: 10px; padding: 28px 0; }
  .price { text-align: left; }
}

.promise { background: var(--forest); color: var(--mist); }
.promise .sec-title small { color: var(--sun-soft); }
.promise .sec-desc { color: rgba(238,241,236,.75); }
.promise-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(32px, 5vw, 64px); margin: 0; padding: 0; list-style: none; }
.promise-list h3 { font-family: var(--mincho); font-size: 22px; font-weight: 600; margin: 0 0 14px; letter-spacing: 0.06em; line-height: 1.5; }
.promise-list p { margin: 0; font-size: 15px; color: rgba(238,241,236,.78); }
.promise-list li { border-top: 1px solid rgba(247,220,160,.35); padding-top: 24px; }
@media (max-width: 860px) { .promise-list { grid-template-columns: 1fr; } }

/* ---------- flow ---------- */
.flow-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.flow-list li { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 32px; padding: 30px 0; border-top: 1px solid var(--line); }
.flow-list li:last-child { border-bottom: 1px solid var(--line); }
.flow-list h3 { display: flex; align-items: baseline; gap: 14px; margin: 0; font-family: var(--mincho); font-weight: 600; font-size: clamp(20px, 2vw, 24px); letter-spacing: 0.06em; line-height: 1.5; }
.flow-list .num { flex: none; font-size: 1.5em; color: var(--moss); font-weight: 500; }
.flow-list p { margin: 0; color: var(--ink-soft); font-size: 15px; }
.flow-list .term { display: block; font-size: 13px; color: var(--moss); margin-top: 6px; }
@media (max-width: 760px) { .flow-list li { grid-template-columns: 1fr; gap: 8px; } }

/* ---------- faq ---------- */
.faq { background: var(--mist-2); }
.faq-list { max-width: 860px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 26px 44px 26px 0; position: relative;
  font-family: var(--mincho); font-size: clamp(17px, 1.8vw, 20px); font-weight: 600; letter-spacing: 0.05em; line-height: 1.6;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 8px; top: 50%; width: 14px; height: 14px; margin-top: -7px;
  background:
    linear-gradient(currentColor, currentColor) center / 14px 1.5px no-repeat,
    linear-gradient(currentColor, currentColor) center / 1.5px 14px no-repeat;
  transition: transform .3s;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 28px; color: var(--ink-soft); font-size: 15px; max-width: 40em; }

/* ---------- contact ---------- */
.contact { background: var(--forest); color: var(--mist); position: relative; overflow: hidden; }
.contact .sec-title small { color: var(--sun-soft); }
.contact .sec-desc { color: rgba(238,241,236,.78); }
.form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 28px; max-width: 900px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; letter-spacing: 0.08em; }
.field label .opt { color: rgba(238,241,236,.55); font-size: 12px; margin-left: 6px; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--mist);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(238,241,236,.25); border-radius: 8px;
  padding: 14px 16px;
}
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--sun-soft) 50%), linear-gradient(135deg, var(--sun-soft) 50%, transparent 50%); background-position: calc(100% - 22px) 55%, calc(100% - 16px) 55%; background-size: 6px 6px; background-repeat: no-repeat; }
.field select option { color: var(--ink); }
.field textarea { min-height: 180px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--sun); background: rgba(255,255,255,.08); }
.form-foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 20px; align-items: center; margin-top: 8px; }
.form-status { margin: 0; font-size: 14px; color: var(--sun-soft); }
@media (max-width: 760px) { .form { grid-template-columns: 1fr; } }

.site-foot { background: var(--forest); color: rgba(238,241,236,.6); font-size: 13px; padding: 32px 0 40px; border-top: 1px solid rgba(238,241,236,.12); }
.site-foot .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal-line { animation: none; opacity: 1; transform: none; }
  .work-shot img { transition: none; }
}


/* ---------- tateuri ---------- */
.facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.facts > div { padding: 28px 24px 30px; border-left: 1px solid var(--line); }
.facts > div:first-child { border-left: 0; padding-left: 0; }
.facts dt { font-size: 13px; color: var(--moss); letter-spacing: 0.1em; margin-bottom: 6px; }
.facts dd { margin: 0; font-family: var(--mincho); font-size: 15px; }
.facts dd b { font-size: clamp(30px, 3.2vw, 40px); font-weight: 600; letter-spacing: 0.02em; margin: 0 2px; }
.facts dd small { display: block; font-family: var(--gothic); font-size: 12px; color: var(--ink-soft); line-height: 1.7; margin-top: 4px; }
@media (max-width: 960px) {
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts > div { padding: 22px 16px; }
  .facts > div:nth-child(odd) { border-left: 0; padding-left: 0; }
  .facts > div:nth-child(n+3) { border-top: 1px solid var(--line); }
}
.demos { margin-top: clamp(56px, 7vw, 88px); }
.demos-note { margin: 0 0 24px; font-size: 14px; color: var(--ink-soft); }
.demos-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px 20px; }
.demos-list a { display: block; text-decoration: none; }
.demos-list img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; border-radius: 6px; background: var(--mist-2); box-shadow: 0 16px 30px -20px rgba(19,38,28,.5); transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.demos-list a:hover img { transform: translateY(-4px); }
.demos-list span { display: block; font-size: 13px; margin-top: 10px; line-height: 1.6; }
.demos-list a:hover span { text-decoration: underline; text-underline-offset: 5px; }
@media (max-width: 960px) { .demos-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 14px; } }
.tateuri-actions { margin-top: 44px; }
.btn-dark { background: var(--forest); color: var(--mist); }
.btn-dark:hover { background: var(--forest-2); }

/* ---------- original ---------- */
.original { background: var(--mist-2); }
.original-price { margin: 28px 0 0; font-family: var(--mincho); font-size: 16px; }
.original-price b { font-size: clamp(40px, 4.6vw, 56px); font-weight: 600; margin-right: 4px; letter-spacing: 0.02em; }
.original-price small { display: block; font-family: var(--gothic); font-size: 13px; color: var(--ink-soft); margin-top: 2px; }
.sec-desc a { text-underline-offset: 4px; }

@media (prefers-reduced-motion: reduce) { .demos-list img { transition: none; } }