/* ============ Concept C ============
   白地 + 細線 + 余白。未来感は「精緻さ」で表現する。
   グラスモーフィズム / グラデーション / フローティング装飾は使わない。 */

:root {
  --ink: #0e151b;
  --gray: #5f6a73;
  --light-gray: #aeb6bd;
  --line: #e2e6ea;
  --bg-soft: #f6f7f8;
  --accent: #0b5cad;
  --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Zen Maru Gothic", "Yu Gothic", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.85;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; }

.wrap {
  width: min(1120px, calc(100% - 64px));
  margin: 0 auto;
}

.kicker {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gray);
  font-weight: 500;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.45), 0 12px 32px -28px rgba(14, 21, 27, 0.4);
  border-bottom: 1px solid rgba(14, 21, 27, 0.06);
  z-index: 50;
}
.site-header--blue {
  background: rgba(221, 233, 245, 0.72);
}
.site-header--pink {
  background: rgba(249, 233, 234, 0.72);
}
.nav-toggle {
  display: none;
}
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(14, 21, 27, 0.06);
  padding: 6px 32px 14px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 14px 2px;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--accent); }
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand,
.brand:visited {
  text-decoration: none;
  color: var(--ink);
}
.brand:hover,
.brand:focus {
  color: var(--ink);
}
.brand-logo { width: 34px; height: auto; }
.brand-name { font-size: 15px; font-weight: 600; letter-spacing: 0.04em; }
.site-nav { display: flex; gap: 28px; margin-left: auto; }
.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 13.5px;
  padding: 6px 14px;
  border-radius: 999px;
  border-bottom: 1px solid transparent;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}
.site-nav a:hover {
  background: rgba(11, 92, 173, 0.09);
  border-bottom-color: var(--accent);
  color: var(--accent);
}
/* ---------- Hero ---------- */
.hero { padding: 110px 0 130px; }
.hero {
  background: linear-gradient(180deg, #dde9f5 0%, #edf4fa 55%, #ffffff 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 72px;
  align-items: center;
}
.hero-title {
  margin-top: 26px;
  font-size: clamp(2.4rem, 4.6vw, 4.2rem);
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0.03em;
}
.hero-brand {
  margin-top: 34px;
  display: flex;
  align-items: baseline;
  gap: 18px;
}
ruby {
  ruby-position: over;
}
.hero-brand ruby {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  font-weight: 400;
  letter-spacing: 0.05em;
}
.hero-brand rt {
  font-size: 0.42em;
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  color: var(--gray);
  font-weight: 400;
}
.hero-lead {
  margin-top: 34px;
  color: var(--gray);
  font-size: 14.5px;
}
.hero-meta {
  margin-top: 48px;
  display: flex;
  gap: 36px;
}
.hero-photo { margin: 0; position: relative; }
.hero-photo img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}
.hero-photo figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0 0 16px 16px;
}

/* 液体系ガラス（控えめなアクセント） */
.glass-chip {
  background: rgba(255,255,255,0.48);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.85);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9), 0 16px 34px -22px rgba(14,21,27,0.35);
  border-radius: 12px;
  padding: 9px 18px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

/* ---------- About ---------- */
.about { padding: 130px 0; }
.sec-title {
  margin-top: 24px;
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.02em;
}
.about-wrap { max-width: 860px; }
.about-body {
  margin-top: 46px;
  display: grid;
  gap: 22px;
  color: var(--gray);
  font-size: 14.5px;
  max-width: 720px;
}
.about-quote {
  margin-top: 60px;
  padding: 28px 0 28px 22px;
  border-left: 2px solid var(--ink);
  font-size: 17px;
  line-height: 2;
  font-weight: 500;
}
.about-grid {
  margin-top: 64px;
  border-top: 1px solid var(--line);
}
.ag-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.ag-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--light-gray);
  padding-top: 4px;
}
.ag-value { font-size: 14.5px; color: var(--ink); }

/* ---------- Business ---------- */
.biz { padding: 120px 0; }
.biz-alt { background: var(--bg-soft); }
.biz-head {
  margin-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 48px;
}
.biz-head > div { max-width: 640px; }
.biz-desc { margin-top: 18px; color: var(--gray); font-size: 14.5px; }
.lp-link {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 4px;
  margin-bottom: 10px;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.lp-link svg { width: 15px; height: 15px; transition: transform 0.2s; }
.lp-link:hover { color: var(--accent); border-color: var(--accent); }
.lp-link:hover svg { transform: translateX(4px); }

/* iLund は LP のピンク調に合わせる */
#ilund .tag-dev {
  color: #d35a60;
  border-color: rgba(211, 90, 96, 0.4);
}
#ilund .lp-link::after {
  background: linear-gradient(105deg, transparent 0%, rgba(240, 150, 154, 0.5) 50%, transparent 100%);
}

.tag-dev {
  margin-left: 14px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 2px 10px;
  border-radius: 2px;
  vertical-align: 2px;
}

.photo-row {
  margin-top: 54px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.photo-row figure { margin: 0; text-align: center; }
.photo-row img,
.hero-photo img,
.ilund-photo img,
.t-photo img,
.prod-feature img,
.prod-row img {
  border-radius: 20px;
  border: 1px solid rgba(14, 21, 27, 0.07);
  box-shadow: 0 24px 60px -34px rgba(14, 21, 27, 0.35);
}
.photo-row img {
  aspect-ratio: 3 / 3.6;
  object-fit: cover;
}
.photo-row figcaption {
  margin-top: 12px;
  font-size: 12px;
  color: var(--gray);
}

.svc-list {
  margin-top: 64px;
  border-top: 1px solid var(--line);
  list-style: none;
}
.svc-list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.svc-no {
  font-size: 13px;
  color: var(--light-gray);
  letter-spacing: 0.1em;
  padding-top: 4px;
}
.svc-list h3 { font-size: 17px; font-weight: 600; }
.svc-list p { margin-top: 6px; color: var(--gray); font-size: 14px; }

/* ---------- iLund ---------- */
.ilund-grid {
  margin-top: 54px;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 72px;
  align-items: center;
}
.ilund-photo { margin: 0; }
.trade-split {
  margin-top: 54px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  grid-template-areas: "copy photo";
  gap: 72px;
  align-items: center;
}
.t-copy { grid-area: copy; }
.t-photo { grid-area: photo; margin: 0; }
.trade-split .svc-list { margin-top: 0; }
.ilund-photo img {
  border-radius: 0;
  border: none;
  box-shadow: none;
  width: 60%;
  height: auto;
  margin: 0 auto;
}
.t-photo img {
  width: 60%;
  height: auto;
  margin: 0 auto;
}
.prod-feature {
  margin: 54px 0 0;
}
.prod-feature img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.prod-row {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.prod-row figure { margin: 0; }
.prod-row img {
  aspect-ratio: 3 / 3.4;
  object-fit: cover;
}
.feat-list {
  list-style: none;
  border-top: 1px solid var(--line);
}
.feat-list li {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.feat-list h3 { font-size: 15.5px; font-weight: 600; }
.feat-list p { margin-top: 4px; color: var(--gray); font-size: 13.5px; }

/* ---------- Contact ---------- */
.contact { padding: 130px 0 150px; background: linear-gradient(180deg, #f6f3f1 0%, #ffffff 26%); }
.contact-inner { max-width: 920px; }
.contact-note { margin-top: 26px; color: var(--gray); font-size: 14.5px; }

.contact-form { margin-top: 52px; max-width: 700px; }
.f-row { margin-bottom: 26px; }
.f-row label {
  display: block;
  font-size: 12px;
  color: var(--gray);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.f-row input,
.f-row select,
.f-row textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  background: transparent;
  padding: 10px 2px;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  outline: none;
}
.f-row select { cursor: pointer; }
.btn {
  margin-top: 12px;
  background: var(--ink);
  color: var(--white);
  border: none;
  padding: 15px 44px;
  font-size: 13.5px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.2s;
}
.btn:hover { background: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
  background: linear-gradient(180deg, #ffffff 0%, #f4f5f7 120px);
  border-top: 1px solid var(--line);
  padding-top: 60px;
}

/* ---------- Footer 会社情報 ---------- */
.f-info {
  grid-area: info;
  margin: 0;
  justify-self: end;
  text-align: left;
}
.f-info div {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 8px;
  align-items: start;
  margin-bottom: 10px;
}
.f-info dt {
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--light-gray);
  padding-top: 1px;
  text-align: right;
  white-space: nowrap;
}
.f-info dd { font-size: 12.5px; color: var(--ink); margin: 0; }

/* ---------- Reveal（スクロール演出） ---------- */
.js .reveal {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js .reveal-l {
  transform: translateX(-44px);
}
.js .reveal-r {
  transform: translateX(44px);
}
.js .reveal.is-in {
  opacity: 1;
  transform: none;
}
.js .reveal:nth-child(2) { transition-delay: 0.06s; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal,
  .js .reveal-l,
  .js .reveal-r {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  grid-template-areas: "brand nav info";
  gap: 40px;
  align-items: start;
  padding-bottom: 48px;
}
.f-brand { grid-area: brand; display: flex; gap: 14px; align-items: flex-start; }
.f-brand img { width: 40px; height: auto; }
.f-brand p { font-size: 14px; }
.f-brand p span { color: var(--gray); font-size: 12px; }
.f-nav { grid-area: nav; display: flex; flex-direction: column; gap: 8px; }
.f-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 13.5px;
  width: fit-content;
}
.f-nav a:hover { text-decoration: underline; }
.f-note { font-size: 12px; color: var(--light-gray); }
.f-bottom {
  border-top: 1px solid var(--line);
  padding: 18px 0 24px;
  font-size: 11px;
  color: var(--light-gray);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

/* ============ Color bands（各セクションの淡い背景） ============ */
#trade {
  background: linear-gradient(180deg, #ffffff 0%, #f3f7fb 55%, #eaf1f8 100%);
}
#ilund {
  background: linear-gradient(180deg, #eaf1f8 0%, #f8f4f2 60%, #f6f3f1 100%);
}

/* ============ Glass panel（控えめな液体系ガラス） ============ */
.glass-panel {
  position: relative;
  background: rgba(255, 255, 255, 0.5);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 24px 60px -38px rgba(14, 21, 27, 0.35);
  border-radius: 20px;
}

.about-quote {
  margin-top: 60px;
  padding: 34px 38px;
  font-size: 17px;
  line-height: 2;
  font-weight: 500;
}
.about-quote::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 26px;
  bottom: 26px;
  width: 2px;
  background: var(--ink);
}
.about-quote.glass-panel {
  padding-left: 52px;
}

.photo-row figcaption,
.prod-feature figcaption,
.prod-row figcaption {
  margin-top: 14px;
  font-size: 11px;
  color: var(--gray);
  display: inline-flex;
  padding: 7px 14px;
  background: rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  backdrop-filter: blur(12px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.tag-dev {
  margin-left: 14px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
  border: 1px solid rgba(11, 92, 173, 0.35);
  background: rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  padding: 3px 12px;
  border-radius: 999px;
  vertical-align: 2px;
}

.contact-form.glass-panel {
  padding: 38px 34px;
}

/* ============ LP link の光沢（shimmer） ============ */
.lp-link {
  position: relative;
  overflow: hidden;
}
.lp-link::after {
  content: "";
  position: absolute;
  top: -6px;
  bottom: -6px;
  left: -70%;
  width: 46%;
  background: linear-gradient(105deg, transparent 0%, rgba(11, 92, 173, 0.16) 50%, transparent 100%);
  transform: skewX(-18deg);
  animation: lp-shine 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes lp-shine {
  0% { left: -70%; }
  45% { left: 130%; }
  100% { left: 130%; }
}

/* ============ Sky decoration（貿易を象徴する船と飛行機） ============ */
.sky-deco {
  position: relative;
  height: 190px;
  margin-top: -30px;
  overflow: hidden;
  pointer-events: none;
}
.sky-track {
  width: min(1120px, calc(100% - 64px));
  margin: 0 auto;
  position: relative;
  height: 100%;
}
.sky-plane,
.sky-ship {
  position: absolute;
  left: 0;
  font-family: "Segoe UI Symbol", "Noto Sans Symbols2", sans-serif;
  line-height: 1;
}
.sky-plane {
  top: 20px;
  font-size: 34px;
  color: rgba(11, 92, 173, 0.72);
  text-shadow: 0 12px 18px rgba(11, 92, 173, 0.14);
  animation: sky-flight 16s ease-in-out infinite;
}
.sky-ship {
  top: 118px;
  font-size: 32px;
  color: rgba(11, 92, 173, 0.58);
  text-shadow: 0 10px 16px rgba(11, 92, 173, 0.12);
  animation: sky-sail 26s ease-in-out infinite;
}
.sky-deco::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 42px;
  height: 1px;
  background-image:
    repeating-linear-gradient(90deg, rgba(11, 92, 173, 0.10) 0, rgba(11, 92, 173, 0.10) 46px, transparent 46px, transparent 110px),
    repeating-linear-gradient(90deg, transparent 0, transparent 78px, rgba(11, 92, 173, 0.16) 78px, rgba(11, 92, 173, 0.16) 81px, transparent 81px, transparent 110px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
}
.sky-deco::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 152px;
  height: 1px;
  background-image:
    repeating-linear-gradient(90deg, rgba(11, 92, 173, 0.07) 0, rgba(11, 92, 173, 0.07) 36px, transparent 36px, transparent 110px),
    repeating-linear-gradient(90deg, transparent 0, transparent 76px, rgba(11, 92, 173, 0.11) 76px, rgba(11, 92, 173, 0.11) 79px, transparent 79px, transparent 110px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 14%, #000 86%, transparent);
}
@keyframes sky-flight {
  0%   { left: -4px; transform: scaleX(1); }
  44%  { left: calc(100% - 70px); transform: scaleX(1); }
  50%  { left: calc(100% - 70px); transform: scaleX(-1); }
  94%  { left: -4px; transform: scaleX(-1); }
  100% { left: -4px; transform: scaleX(1); }
}
@keyframes sky-sail {
  0%   { left: 4px; transform: scaleX(1); }
  44%  { left: calc(100% - 96px); transform: scaleX(1); }
  50%  { left: calc(100% - 96px); transform: scaleX(-1); }
  94%  { left: 4px; transform: scaleX(-1); }
  100% { left: 4px; transform: scaleX(1); }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .site-nav { display: none; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-left: auto;
    background: none;
    border: none;
    padding: 10px 2px;
    cursor: pointer;
  }
  .nav-toggle span {
    display: block;
    width: 22px;
    height: 1.6px;
    background: var(--ink);
    transition: transform 0.2s, opacity 0.2s;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }
  .hero-grid { grid-template-columns: 1fr; gap: 50px; }
  .hero { padding: 70px 0 90px; }
  .hero-title { font-size: clamp(2rem, 8vw, 2.7rem); }
  .hero-brand ruby { font-size: clamp(1.4rem, 6vw, 1.9rem); }
  .hero-meta { flex-wrap: wrap; row-gap: 12px; column-gap: 14px; }
  .sec-title { font-size: clamp(1.45rem, 5.5vw, 1.9rem); }
  .about-quote { font-size: 15.5px; }
  .sky-deco { height: 150px; margin-top: -14px; }
  .sky-plane { top: 14px; font-size: 28px; }
  .sky-ship { top: 92px; font-size: 26px; }
  .sky-deco::before { top: 30px; }
  .sky-deco::after { top: 122px; }
  .photo-row {
    display: flex;
    overflow-x: auto;
    gap: 16px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }
  .photo-row::-webkit-scrollbar { display: none; }
  .photo-row figure {
    flex: 0 0 76%;
    max-width: 340px;
    scroll-snap-align: start;
  }
  .ilund-grid { grid-template-columns: 1fr; }
  .trade-split {
    grid-template-columns: 1fr;
    grid-template-areas: "photo" "copy";
    gap: 36px;
  }
  .prod-row { gap: 14px; }
  .biz-head { flex-direction: column; align-items: flex-start; gap: 18px; }
  .footer-grid {
    grid-template-columns: 1fr;
    grid-template-areas: "brand" "info";
    gap: 32px;
    padding-bottom: 40px;
  }
  .f-nav { display: none; }
  .f-info { justify-self: stretch; }
  .f-info div { grid-template-columns: 66px 1fr; gap: 6px; margin-bottom: 12px; }
  .ag-item { grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 560px) {
  .hero { padding: 54px 0 76px; }
  .about { padding: 84px 0; }
  .biz { padding: 84px 0; }
  .contact { padding: 88px 0 100px; }
  .hero-title { font-size: clamp(1.7rem, 8.6vw, 2.2rem); line-height: 1.6; }
  .hero-brand ruby { font-size: clamp(1.2rem, 6.4vw, 1.6rem); }
  .hero-lead { font-size: 13.5px; }
  .sec-title { font-size: clamp(1.25rem, 5.8vw, 1.5rem); }
  .kicker { letter-spacing: 0.12em; }
  .lp-link { white-space: normal; }
  .svc-list li { grid-template-columns: 44px 1fr; gap: 14px; }
}

/* ============ 追加：アクセシビリティ・フォーム状態 ============ */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  font-size: 13px;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}

.glass-chip a {
  color: inherit;
  text-decoration: none;
}
a.glass-chip {
  color: var(--gray);
  text-decoration: none;
}
a.glass-chip:hover {
  color: var(--accent);
}

.form-note {
  margin-top: 16px;
  font-size: 11.5px;
  color: var(--light-gray);
  line-height: 1.7;
}

.contact-form .sent-msg {
  display: none;
  margin-top: 10px;
  padding: 10px 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink);
}
.contact-form.is-sent .sent-msg {
  display: block;
}
.contact-form.is-sent .f-row,
.contact-form.is-sent .btn,
.contact-form.is-sent .form-note {
  display: none;
}
.contact-form .err-msg {
  display: none;
  margin-top: 12px;
  font-size: 13px;
  color: #b3261e;
}
.contact-form .err-msg:not(:empty) {
  display: block;
}
.contact-form .demo-note {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  color: var(--light-gray);
}

/* ============ サブページ共通 ============ */
.site-nav a[aria-current="page"] {
  background: rgba(11, 92, 173, 0.09);
  color: var(--accent);
}

.page-hero {
  background: linear-gradient(180deg, #dde9f5 0%, #edf4fa 58%, #ffffff 100%);
  padding: 96px 0 110px;
}
.page-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  align-items: center;
}
.page-hero h1 {
  margin-top: 18px;
  font-size: clamp(2.2rem, 4.4vw, 3.6rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.page-hero .hero-lead {
  margin-top: 28px;
  max-width: 30em;
}
.page-hero-pink {
  background: linear-gradient(180deg, #f9e9ea 0%, #fdf3f3 58%, #ffffff 100%);
}
.page-hero-pink .flow-no,
.page-hero-pink .faq-list summary::after { color: #d35a60; }
.page-hero-pink .tag-dev {
  color: #d35a60;
  border-color: rgba(211, 90, 96, 0.4);
}
.page-hero-cta {
  margin-top: 42px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.page-hero-photo { margin: 0; }
.page-hero-photo img {
  aspect-ratio: 3 / 3.4;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(14, 21, 27, 0.07);
  box-shadow: 0 24px 60px -34px rgba(14, 21, 27, 0.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--ink);
  padding: 14px 26px;
  font-size: 13.5px;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-decoration: none;
  background: transparent;
  transition: background-color 0.2s, color 0.2s;
}
.btn-ghost:hover {
  background: var(--ink);
  color: #fff;
}

.biz-alt {
  background: linear-gradient(180deg, #ffffff 0%, #f8f6f5 55%, #f3f1ef 100%);
}

.biz .sec-title { margin-top: 18px; }
.biz .biz-desc { margin-top: 20px; max-width: 640px; }

.chip-wrap {
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.chip-tag {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  color: var(--ink);
}

.screen-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.screen-grid figure { margin: 0; position: relative; }
.screen-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid rgba(14, 21, 27, 0.07);
  box-shadow: 0 24px 60px -36px rgba(14, 21, 27, 0.4);
  display: block;
}
.screen-grid figcaption {
  margin-top: 12px;
  font-size: 11px;
  color: var(--gray);
  text-align: center;
}

.flow-grid {
  margin-top: 48px;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid var(--line);
}
.flow-grid li {
  padding: 30px 22px 8px 0;
  position: relative;
}
.flow-grid li + li::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 34px;
  width: 1px;
  height: 40px;
  background: var(--line);
}
.flow-no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}
.flow-grid h3 { font-size: 16px; font-weight: 600; }
.flow-grid p { margin-top: 8px; font-size: 13px; color: var(--gray); line-height: 1.8; }

.cta-band {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 46px 48px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
}
.cta-band h2 { margin-top: 16px; font-size: clamp(1.3rem, 2.3vw, 1.9rem); font-weight: 500; }
.cta-band p { margin-top: 14px; color: var(--gray); font-size: 14px; }
.cta-band .lp-link { margin-bottom: 6px; }

.faq-list {
  margin-top: 44px;
  border-top: 1px solid var(--line);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px 4px;
  font-size: 15px;
  font-weight: 500;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-size: 20px;
  color: var(--accent);
  flex: none;
  transition: transform 0.2s;
}
.faq-list details[open] summary::after {
  transform: rotate(45deg);
}
.faq-list details p {
  padding: 0 4px 22px;
  font-size: 13.5px;
  color: var(--gray);
  line-height: 1.9;
}

.cta-section {
  padding: 20px 0 130px;
}
.cta-box {
  background: var(--ink);
  border-radius: 20px;
  color: #fff;
  padding: 52px 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  box-shadow: 0 30px 70px -40px rgba(14, 21, 27, 0.7);
}
.cta-box h2 { font-size: clamp(1.3rem, 2.4vw, 1.9rem); font-weight: 500; }
.cta-box p { margin-top: 14px; color: rgba(255, 255, 255, 0.72); font-size: 14px; }
.cta-box .btn { background: #fff; color: var(--ink); }
.cta-box .btn:hover { background: #e6ecf3; }

@media (max-width: 860px) {
  .page-hero { padding: 70px 0 84px; }
  .page-hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .page-hero-photo img { aspect-ratio: 4 / 3; }
  .flow-grid { grid-template-columns: 1fr 1fr; gap: 0 26px; }
  .flow-grid li + li::before { display: none; }
  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 34px 30px;
  }
  .cta-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 40px 32px;
  }
  .cta-section { padding: 20px 0 90px; }
}

@media (max-width: 560px) {
  .flow-grid { grid-template-columns: 1fr; }
  .faq-list summary { font-size: 14px; }
  .screen-grid { gap: 12px; }
  .screen-grid img { border-radius: 14px; }
  .screen-grid figcaption { font-size: 10.5px; }
  .prod-row { grid-template-columns: 1fr; }
  .prod-feature img,
  .prod-row img { border-radius: 16px; }
}