/* 株式会社サンプル デモサイト 11「宵（よい）」
   全面ネイビー #1C2A4A、白の明朝、薄紫 #CFC4E3 は線とボタンだけ。
   英字の大見出し＋短い日本語、写真が主役。 */

:root {
  --navy: #1C2A4A;
  --navy-deep: #16213B;
  --navy-2: #26365C;
  --lilac: #CFC4E3;
  --lilac-soft: #E3DCEF;
  --gold: #C9A961;
  --gold-soft: #E6D2A0;
  --gold-deep: #8F7332;
  --gold-line: rgba(201, 169, 97, .55);
  --white: #F6F4FA;
  --white-70: rgba(246, 244, 250, .72);
  --line: rgba(207, 196, 227, .28);
  --line-strong: rgba(207, 196, 227, .5);
  --gutter: clamp(20px, 5vw, 80px);
  --max: 1360px;
  --header-h: 76px;
  --serif-en: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --mincho: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", "BIZ UDMincho", "MS PMincho", serif;
  --font: var(--serif-en), var(--mincho);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: var(--header-h); background: var(--navy); }

body {
  margin: 0;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font);
  font-size: 15px;
  line-height: 2;
  letter-spacing: .06em;
  line-break: strict;
  word-break: normal;
  overflow-wrap: anywhere;
}

img { display: block; max-width: 100%; }
h1, h2, h3, p, dl, dd, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }
.ph { display: inline-block; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
:focus-visible { outline: 2px solid var(--gold-soft); outline-offset: 3px; }
main:focus { outline: none; }

.skip {
  position: absolute; left: 12px; top: -80px; z-index: 100;
  background: var(--lilac); color: var(--navy);
  padding: 12px 18px; text-decoration: none;
}
.skip:focus { top: 12px; }
.noscript { padding: 40px var(--gutter); }

.wrap { position: relative; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- デモ表示・ヘッダー ---------- */
.demo-note {
  position: relative; z-index: 60;
  padding: 5px var(--gutter);
  background: var(--navy-deep);
  color: var(--white-70);
  font-size: 11px; line-height: 1.6; letter-spacing: .06em; text-align: center;
}

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(28, 42, 74, .92);
  border-bottom: 1px solid var(--line);
  transition: background .3s, border-color .3s;
}
/* ヒーローの上では透明にして写真に重ねる（sticky のまま、ヒーローを下に潜らせる） */
.has-hero .site-header { background: transparent; border-color: transparent; }
.has-hero.is-scrolled .site-header { background: rgba(28, 42, 74, .92); border-color: var(--line); }
.has-hero .hero { margin-top: calc(-1 * var(--header-h)); }

.header-bar {
  position: relative;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  max-width: var(--max); height: var(--header-h); margin-inline: auto; padding-inline: var(--gutter);
}
.brand { position: relative; z-index: 3; display: inline-flex; align-items: center; min-height: 44px; flex: none; }
.brand-logo { height: 34px; width: auto; }
.site-footer .brand-logo { height: 40px; }

#site-nav ul { display: flex; align-items: center; gap: 4px; }
#site-nav a {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 44px; padding: 4px 14px;
  text-decoration: none; white-space: nowrap;
  color: var(--white);
}
#site-nav .en { font-size: 14px; letter-spacing: .14em; text-transform: uppercase; line-height: 1.3; }
#site-nav .jp { font-size: 10px; letter-spacing: .08em; line-height: 1.4; color: var(--white-70); }
#site-nav a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 1px;
  background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
#site-nav a:hover::after, #site-nav a[aria-current="page"]::after { transform: scaleX(1); }

.menu-toggle { display: none; }

@media (max-width: 1100px) and (min-width: 801px) {
  #site-nav a { padding-inline: 8px; }
  #site-nav .en { font-size: 12px; letter-spacing: .1em; }
  #site-nav a::after { left: 8px; right: 8px; }
}

@media (max-width: 800px) {
  :root { --header-h: 64px; }
  .header-bar .brand-logo { height: 28px; }
  .menu-toggle {
    position: relative; z-index: 3;
    display: inline-flex; align-items: center; gap: 10px;
    min-height: 44px; min-width: 44px; padding: 0 4px 0 12px; margin-right: -4px;
    background: none; border: 0; cursor: pointer; white-space: nowrap;
    font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  }
  .menu-icon { position: relative; width: 24px; height: 10px; flex: none; }
  .menu-icon span { position: absolute; left: 0; width: 100%; height: 1px; background: var(--white); transition: transform .25s, top .25s; }
  .menu-icon span:first-child { top: 0; }
  .menu-icon span:last-child { top: 9px; }
  .menu-open .menu-icon span:first-child { top: 4.5px; transform: rotate(20deg); }
  .menu-open .menu-icon span:last-child { top: 4.5px; transform: rotate(-20deg); }

  #site-nav {
    position: fixed; inset: 0; z-index: 2;
    padding: calc(var(--header-h) + 32px) var(--gutter) 40px;
    background: var(--navy-deep);
    overflow-y: auto; visibility: hidden; opacity: 0;
    transition: opacity .22s, visibility .22s;
  }
  .menu-open #site-nav { visibility: visible; opacity: 1; }
  .menu-open .site-header { background: var(--navy-deep) !important; }
  #site-nav ul { display: block; border-top: 1px solid var(--line); }
  #site-nav li { border-bottom: 1px solid var(--line); }
  #site-nav a { flex-direction: row; justify-content: space-between; align-items: baseline; min-height: 64px; padding: 8px 0; }
  #site-nav .en { font-size: 22px; letter-spacing: .12em; }
  #site-nav .jp { font-size: 12px; }
  #site-nav a::after { display: none; }
  #site-nav a[aria-current="page"] .en { color: var(--gold-soft); }
}

/* ---------- ボタン ---------- */
.btn-pill, .cta-fixed, .biz-more {
  display: inline-flex; align-items: center; gap: 14px;
  min-height: 52px; padding: 8px 30px;
  border: 1px solid var(--gold-line); border-radius: 999px;
  font-size: 14px; letter-spacing: .12em; text-decoration: none; line-height: 1.5; white-space: nowrap;
  color: var(--white);
  transition: background .3s, color .3s, border-color .3s;
}
.btn-pill:hover { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.arrow { font-family: var(--serif-en); font-size: 1.1em; line-height: 1; transition: transform .3s; }
.btn-pill:hover .arrow, .biz-band:hover .arrow { transform: translateX(6px); }

.cta-fixed {
  position: fixed; z-index: 40;
  left: 50%; bottom: 22px; transform: translateX(-50%);
  background: var(--lilac); color: var(--navy); border-color: var(--gold);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .35);
}
.cta-fixed:hover { background: var(--lilac-soft); }
.is-contact .cta-fixed, .menu-open .cta-fixed { display: none; }

.btn-off {
  display: flex; width: 100%; align-items: center; justify-content: center;
  min-height: 52px; padding: 8px 20px;
  border: 1px dashed var(--line-strong); border-radius: 999px;
  background: rgba(38, 54, 92, .5); color: var(--white-70);
  font-size: 14px; letter-spacing: .08em; cursor: not-allowed;
}

.tlink {
  display: inline-flex; align-items: center; min-height: 44px;
  text-decoration: none;
  background: linear-gradient(var(--gold), var(--gold)) no-repeat 0 calc(100% - 9px) / 100% 1px;
}
.tlink:hover { background-size: 40% 1px; }

/* ---------- 写真 ---------- */
.img-slot { position: relative; }
.img-slot .frame { position: relative; width: 100%; height: 100%; overflow: hidden; background: var(--navy-2); }
.img-slot img { width: 100%; height: 100%; object-fit: cover; }
.r-45 .frame { aspect-ratio: 4 / 5; }
.r-43 .frame { aspect-ratio: 4 / 3; }
.r-32 .frame { aspect-ratio: 3 / 2; }
.ai-tag {
  position: absolute; z-index: 2; right: 0; top: 0;
  padding: 3px 9px;
  background: rgba(22, 33, 59, .8); color: var(--white-70);
  font-size: 10px; line-height: 1.6; letter-spacing: .06em; white-space: nowrap;
}
.badge {
  position: absolute; left: 0; top: 0; padding: 4px 12px;
  background: var(--lilac); color: var(--navy);
  font-size: 11px; line-height: 1.5; letter-spacing: .1em;
}

/* ---------- 見出し（英字＋日本語） ---------- */
.label { display: flex; flex-direction: column; gap: 6px; }
.label-en {
  font-family: var(--serif-en);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 400; line-height: 1.1; letter-spacing: .02em;
}
.label-jp { font-size: 13px; letter-spacing: .2em; color: var(--white-70); }
.label-jp::before { content: ""; display: inline-block; width: 24px; height: 1px; margin-right: 12px; vertical-align: middle; background: var(--gold); }

.statement {
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.7; letter-spacing: .08em;
}
.statement.small { font-size: clamp(1.25rem, 1.9vw, 1.6rem); }
.body { max-width: 30em; color: var(--white-70); }
.note { font-size: 12px; color: var(--white-70); }

.sec-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px 40px; margin-bottom: clamp(36px, 5vw, 64px); }

/* ---------- スクロールで静かに現れる ---------- */
.band, .biz-band { position: relative; }
@media (prefers-reduced-motion: no-preference) {
  .band > .wrap, .biz-band-inner { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s cubic-bezier(.2, .7, .2, 1); }
  .band.is-in > .wrap, .biz-band.is-in .biz-band-inner { opacity: 1; transform: none; }
}

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  height: calc(100svh - 26px);
  height: calc(100dvh - 26px);
  min-height: 560px; max-height: 1100px;
  overflow: hidden;
}
.hero-photo { position: absolute; inset: 0; }
.hero-photo .frame { background: var(--navy-deep); }
.hero-photo img { object-position: 50% 60%; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(28, 42, 74, .55) 0%, rgba(28, 42, 74, .05) 35%, rgba(28, 42, 74, .1) 70%, var(--navy) 100%);
}
.hero-copy {
  position: absolute; z-index: 2; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--header-h) var(--gutter) 0;
  text-align: center;
}
.hero-title {
  font-family: var(--serif-en);
  font-size: clamp(2.4rem, 6.2vw, 5.6rem);
  font-weight: 400; line-height: 1.15; letter-spacing: .02em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}
.hero-sub { margin-top: 22px; font-size: clamp(15px, 1.4vw, 19px); letter-spacing: .28em; text-shadow: 0 1px 12px rgba(0, 0, 0, .4); }
.hero-note { position: absolute; z-index: 2; right: var(--gutter); bottom: 20px; font-size: 10px; letter-spacing: .06em; color: var(--white-70); }
.scroll-cue { position: absolute; z-index: 2; left: 50%; bottom: 0; width: 1px; height: 72px; background: var(--line); overflow: hidden; }
.scroll-cue span { position: absolute; left: 0; top: -100%; width: 100%; height: 100%; background: var(--gold); animation: cue 2.2s ease-in-out infinite; }
@keyframes cue { 0% { top: -100%; } 60%, 100% { top: 100%; } }
@media (prefers-reduced-motion: no-preference) {
  .hero-title, .hero-sub { animation: rise 1.4s cubic-bezier(.2, .7, .2, 1) both; }
  .hero-sub { animation-delay: .25s; }
}
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* ---------- About ---------- */
.about { padding-block: clamp(90px, 12vw, 170px) clamp(60px, 8vw, 120px); }
.about-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 48px clamp(40px, 8vw, 140px); align-items: center; }
.about-text .label { margin-bottom: clamp(32px, 4vw, 56px); }
.about-text .statement { margin-bottom: 22px; }
.about-text .body { margin-bottom: 40px; }

/* ---------- Message（代表あいさつ 抜粋） ---------- */
.message { padding-block: clamp(10px, 2vw, 30px) clamp(70px, 9vw, 130px); }
.message-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 40px clamp(40px, 8vw, 140px); align-items: center; }
.message-portrait {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 4 / 5; max-width: 380px; padding: 24px;
  border: 1px solid var(--gold-line); text-align: center;
  background: radial-gradient(circle at 50% 35%, rgba(207, 196, 227, .12), transparent 60%), var(--navy-2);
}
.portrait-ph { font-family: var(--serif-en); font-size: 13px; line-height: 2.2; letter-spacing: .2em; color: var(--white-70); }
.message-text .label { margin-bottom: clamp(28px, 3.5vw, 44px); }
.message-quote { margin: 0; padding-left: clamp(20px, 2.5vw, 32px); border-left: 1px solid var(--gold-line); }
.message-quote p { max-width: 24em; font-size: clamp(1.15rem, 1.8vw, 1.5rem); line-height: 2; letter-spacing: .08em; }
.message-quote p.tbd { color: var(--white-70); }
.message-sign { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 18px; margin: 28px 0 36px; }
.message-role { font-size: 12px; letter-spacing: .2em; color: var(--white-70); }
.message-name { font-size: clamp(1.2rem, 1.8vw, 1.5rem); letter-spacing: .12em; }

/* ---------- Points（円） ---------- */
.points { padding-block: clamp(60px, 8vw, 120px); }
.points .label { margin-bottom: clamp(40px, 5vw, 72px); }
.circles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.circle {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  aspect-ratio: 1; padding: 12%;
  border: 1px solid var(--gold-line); border-radius: 50%;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, rgba(207, 196, 227, .12), transparent 60%);
}
.circle-no { font-family: var(--serif-en); font-size: 15px; letter-spacing: .16em; color: var(--gold-soft); }
.circle-no::after { content: ""; display: block; width: 28px; height: 1px; margin: 10px auto 0; background: var(--gold-line); }
.circle-text { font-size: clamp(1rem, 1.5vw, 1.3rem); line-height: 1.8; letter-spacing: .08em; }

/* ---------- Property list / Works ---------- */
.plist, .works { padding-block: clamp(60px, 8vw, 120px); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px clamp(20px, 3vw, 40px); }
.card-kind { margin-top: 18px; font-size: 12px; letter-spacing: .16em; color: var(--gold-soft); }
.card-title { margin-top: 4px; font-size: 16px; line-height: 1.7; letter-spacing: .06em; }
.works-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); }

/* ---------- Business（全幅の帯） ---------- */
.bizlist { padding-block: clamp(60px, 8vw, 120px) 0; }
.bizlist > .wrap { margin-bottom: clamp(36px, 5vw, 64px); }
.biz-band {
  position: relative; display: block; overflow: hidden;
  min-height: clamp(280px, 34vw, 480px);
  text-decoration: none; color: var(--white);
  border-top: 1px solid var(--line);
}
.biz-bg { position: absolute; inset: 0; }
.biz-bg .frame { height: 100%; }
.biz-bg img { transition: transform 1.2s cubic-bezier(.2, .7, .2, 1); }
.biz-band::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(28, 42, 74, .88) 0%, rgba(28, 42, 74, .55) 55%, rgba(28, 42, 74, .25) 100%); transition: opacity .5s; }
.biz-band:hover .biz-bg img { transform: scale(1.04); }
.biz-band-inner {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
  min-height: inherit; padding-block: clamp(40px, 5vw, 72px);
}
.biz-band-inner { min-height: clamp(280px, 34vw, 480px); }
.biz-no { font-family: var(--serif-en); font-size: 15px; letter-spacing: .2em; color: var(--gold-soft); }
.biz-en { font-family: var(--serif-en); font-size: clamp(2rem, 5vw, 4.4rem); line-height: 1.1; letter-spacing: .01em; margin-top: 14px; }
.biz-jp { margin-top: 12px; font-size: clamp(14px, 1.3vw, 17px); letter-spacing: .2em; }
.biz-more { margin-top: 28px; }
.biz-band:hover .biz-more { background: var(--gold); color: var(--navy); border-color: var(--gold); }

/* ---------- Satellite / Contact ---------- */
.satellite-teaser, .satellite { padding-block: clamp(80px, 10vw, 150px); }
.satellite-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px clamp(40px, 7vw, 120px); align-items: center; }
.satellite-text .label { margin-bottom: 28px; }
.satellite-text .body { margin-bottom: 36px; }
.satellite .satellite-text h2 { margin-bottom: 20px; }
.satellite .note { margin-top: 16px; }
.map-slot {
  grid-column: 1 / -1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  aspect-ratio: 16 / 6; border: 1px dashed var(--line-strong);
  color: var(--white-70); font-size: 13px; text-align: center;
}
.map-slot span:first-child { font-family: var(--serif-en); font-size: 20px; letter-spacing: .16em; color: var(--white); }

.contact-cta { padding-block: clamp(90px, 12vw, 170px); text-align: center; border-top: 1px solid var(--line); }
.contact-cta .label { align-items: center; margin-bottom: 28px; }
.contact-cta .statement { margin-bottom: 36px; }
.contact-cta .body { margin-inline: auto; }

/* ---------- 下層ページの見出し ---------- */
.phead { padding-block: clamp(64px, 9vw, 140px) clamp(48px, 6vw, 88px); border-bottom: 1px solid var(--line); }
.phead .label-en { font-size: clamp(2.6rem, 6vw, 5.4rem); }
.phead-lead { max-width: 30em; margin-top: 28px; color: var(--white-70); }

/* ---------- 事業紹介 ---------- */
.biz { padding-block: clamp(64px, 8vw, 130px); border-bottom: 1px solid var(--line); }
.biz-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px clamp(40px, 7vw, 120px); align-items: center; }
.biz.is-rev .img-slot { order: 2; }
.biz-text .biz-no { display: block; margin-bottom: 12px; }
.biz-text .label { margin-bottom: 24px; }
.biz-text .statement { margin-bottom: 28px; }

.facts > div {
  display: grid; grid-template-columns: minmax(7em, auto) 1fr; gap: 4px 20px;
  padding-block: 12px; border-top: 1px solid var(--line);
  font-size: 13px; line-height: 1.8;
}
.facts > div:last-child { border-bottom: 1px solid var(--line); }
.facts dt { color: var(--white-70); }
.biz-text .facts > div, .channel .facts > div { grid-template-columns: 1fr; }

/* ---------- 物件・施工事例 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
.filters button {
  min-height: 44px; padding: 6px 22px;
  background: transparent; border: 1px solid var(--line-strong); border-radius: 999px;
  color: var(--white); font-size: 13px; letter-spacing: .1em; cursor: pointer;
  transition: background .2s, color .2s;
}
.filters button[aria-pressed="true"] { background: var(--lilac); color: var(--navy); border-color: var(--lilac); }
.filter-status { margin-top: 12px; font-size: 12px; color: var(--white-70); }
.works-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(48px, 6vw, 80px) clamp(24px, 4vw, 56px); padding-block: clamp(56px, 7vw, 100px) clamp(90px, 11vw, 160px); }
.work .card-title { font-size: 18px; margin-bottom: 18px; }

/* ---------- 会社概要 ---------- */
.company { padding-block: clamp(56px, 7vw, 110px) clamp(90px, 11vw, 160px); }
.company-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 48px clamp(40px, 6vw, 110px); align-items: start; }
.rep-role { font-family: var(--serif-en); font-size: 13px; letter-spacing: .2em; color: var(--gold-soft); }
.rep-name { margin-top: 8px; font-size: clamp(1.8rem, 3vw, 2.4rem); line-height: 1.4; letter-spacing: .1em; }
.rep-note { margin-top: 14px; font-size: 13px; color: var(--white-70); }
.spec > div { display: grid; grid-template-columns: 11em 1fr; gap: 4px 28px; padding-block: 20px; border-bottom: 1px solid var(--line); }
.spec > div:first-child { border-top: 1px solid var(--line); }
.spec dt { font-size: 13px; letter-spacing: .12em; color: var(--white-70); }
.spec dd { font-size: 15px; }
.spec dd.tbd { color: var(--white-70); }

/* ---------- お問い合わせ ---------- */
.contact { padding-block: clamp(56px, 7vw, 110px) clamp(90px, 11vw, 160px); }
.channels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px clamp(40px, 7vw, 120px); }
.channel .label { margin-bottom: 26px; }
.channel .label-en { font-size: clamp(1.8rem, 3vw, 2.6rem); }
.channel .facts { margin-bottom: 30px; }
.nf-links { display: flex; flex-wrap: wrap; gap: 4px 32px; margin-top: 36px; }

/* ---------- フッター ---------- */
.site-footer { background: var(--navy-deep); border-top: 1px solid var(--line); }
.footer-inner { display: grid; grid-template-columns: auto 1fr; gap: 28px 48px; max-width: var(--max); margin-inline: auto; padding: 56px var(--gutter) 110px; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0 28px; }
.footer-nav a { display: inline-flex; align-items: center; min-height: 44px; font-family: var(--serif-en); font-size: 13px; letter-spacing: .16em; text-transform: uppercase; color: var(--white-70); text-decoration: none; }
.footer-nav a:hover { color: var(--white); }
.footer-notes { grid-column: 1 / -1; padding-top: 24px; border-top: 1px solid var(--line); font-size: 11px; line-height: 1.9; color: var(--white-70); }
.footer-notes .copy { margin-top: 8px; font-family: var(--serif-en); letter-spacing: .1em; }

/* ---------- 中間幅 ---------- */
@media (max-width: 1024px) {
  .circle { padding: 8%; }
  .cards { gap: 24px 16px; }
}

/* ---------- スマホ・タブレット縦 ---------- */
@media (max-width: 800px) {
  body { font-size: 14px; line-height: 1.9; }
  .hero { height: calc(100svh - 26px); min-height: 520px; }
  .hero-title { font-size: clamp(2rem, 9vw, 3rem); }
  .hero-sub { letter-spacing: .2em; font-size: 14px; }
  .about-grid, .satellite-grid, .biz-grid { grid-template-columns: 1fr; }
  .about-photo { order: -1; }
  .about-photo .frame { aspect-ratio: 4 / 3; }
  .message-grid { grid-template-columns: 1fr; gap: 32px; }
  .message-portrait { max-width: 200px; }
  .biz.is-rev .img-slot { order: 0; }
  .circles { grid-template-columns: 1fr; gap: 16px; }
  .circle { aspect-ratio: auto; border-radius: 24px; padding: 22px 20px; }
  .cards { grid-template-columns: 1fr; gap: 28px; }
  .works-grid { grid-template-columns: 1fr; }
  .works-list { grid-template-columns: 1fr; gap: 48px; }
  .company-grid { grid-template-columns: 1fr; }
  .spec > div { grid-template-columns: 1fr; gap: 2px; padding-block: 16px; }
  .channels { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; padding-top: 44px; padding-bottom: 110px; }
  .footer-nav { justify-content: flex-start; gap: 0 20px; }
  .cta-fixed { min-height: 48px; padding: 6px 24px; font-size: 13px; bottom: 16px; }
  .biz-band-inner { min-height: 260px; }
  .biz-en { font-size: clamp(1.7rem, 8vw, 2.6rem); }
  .map-slot { aspect-ratio: 4 / 3; }
}

@media (max-width: 360px) {
  .hero-title { font-size: 1.85rem; }
  .btn-pill { padding-inline: 22px; min-height: 48px; font-size: 13px; }
  .label-jp { font-size: 12px; letter-spacing: .12em; }
  .menu-toggle .menu-label { font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .scroll-cue { display: none; }
}

/* ─── モバイルメニュー：閉じる／HOME（TATEURI 必須・メニューを開いている間だけ表示） ─── */
.mobile-nav-extra { display: none; }
html.tt-nav-open #site-nav .mobile-nav-extra {
  position: relative; z-index: 5; display: flex; flex: 0 0 auto; align-self: stretch; align-items: center; justify-content: space-between; gap: 16px;
  box-sizing: border-box; width: 100%; margin: 0 0 14px; padding: 0 0 10px; border-bottom: 1px solid rgba(128, 128, 128, .35);
}
html.tt-nav-open #site-nav a.mobile-nav-home,
html.tt-nav-open #site-nav button.mobile-nav-close {
  display: inline-flex; align-items: center; gap: 8px; width: auto; min-height: 44px; margin: 0; padding: 0 2px;
  font: inherit; font-size: 14px; line-height: 1; letter-spacing: .12em; color: inherit; text-decoration: none;
  background: none; border: 0; border-radius: 0; box-shadow: none; opacity: 1; transform: none; cursor: pointer;
}
html.tt-nav-open #site-nav a.mobile-nav-home { font-weight: 700; letter-spacing: .2em; box-shadow: inset 0 -3px 0 var(--gold); }
html.tt-nav-open #site-nav a.mobile-nav-home::before, html.tt-nav-open #site-nav a.mobile-nav-home::after,
html.tt-nav-open #site-nav button.mobile-nav-close::before, html.tt-nav-open #site-nav button.mobile-nav-close::after { content: none; display: none; }
html.tt-nav-open #site-nav button.mobile-nav-close svg { width: 14px; height: 14px; flex: 0 0 auto; }

/* メニューを開いている間、デモバーが画面に見えていれば一時的に外す（各案のメニュー位置は元のまま） */
html.tt-bar-hide #demo-bar { display: none; }

/* ─── 横スクロール防止（TATEURI 規則。sticky を壊さないよう hidden ではなく clip） ─── */
html, body { overflow-x: clip; }

/* ─── DEMO BAR（TATEURI 共通・通常フローに置く） ─── */
#demo-bar { position: relative; z-index: 1200; background: #101215; border-bottom: 1px solid rgba(255, 255, 255, .12); padding: 7px 16px; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; }
.demo-bar-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px 10px; font-size: 12px; line-height: 1.5; letter-spacing: .02em; color: rgba(255, 255, 255, .55); }
.demo-badge { font-size: 10px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; background: rgba(200, 168, 92, .18); color: #C8A85C; padding: 3px 10px; flex-shrink: 0; }
.demo-link { display: inline-block; padding: 4px 0; color: #C8A85C; font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.demo-copy { color: rgba(255, 255, 255, .3); font-size: 11px; }
@media (max-width: 640px) { .demo-copy { display: none; } }