/* Watanabe Shokai — Shared Styles */

:root {
  --blue-50:  #eff5fc;
  --blue-100: #dce8f6;
  --blue-200: #b9d0ec;
  --blue-300: #8fb1de;
  --blue-400: #5a8bcf;
  --blue-500: #3a6ec0;
  --blue-600: #2558ae;
  --blue-700: #1e40af;   /* primary */
  --blue-800: #1b3a8a;
  --blue-900: #152c69;

  --ink-900:  #0f1d3a;
  --ink-800:  #1f2a44;
  --ink-700:  #344055;
  --ink-600:  #4b5874;
  --ink-500:  #6b7690;
  --ink-400:  #9099ae;
  --ink-300:  #c5ccd9;
  --ink-200:  #e4e8ef;
  --ink-100:  #f1f4f9;
  --ink-50:   #f7f9fc;

  --surface-tint: #eef4fb;   /* 淡いブルー背景 */
  --surface-tint-2: #e6eff9;

  --ok: #1e8a5e;
  --ng: #c04a4a;

  --shadow-sm: 0 1px 2px rgba(16,30,64,0.04), 0 1px 1px rgba(16,30,64,0.03);
  --shadow-md: 0 2px 6px rgba(16,30,64,0.05), 0 8px 18px rgba(16,30,64,0.04);
  --shadow-lg: 0 4px 12px rgba(16,30,64,0.06), 0 20px 40px rgba(16,30,64,0.06);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --container: 1120px;
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  color: var(--ink-800);
  background: #ffffff;
  line-height: 1.7;
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.section-tint { background: var(--surface-tint); }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--ink-200);
}
.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand__mark {
  width: 34px; height: 34px;
  color: var(--blue-700);
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: 0.02em;
}
.brand__tagline {
  font-size: 10.5px;
  color: var(--ink-500);
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.nav { display: flex; gap: 24px; margin-left: auto; align-items: center; flex-wrap: nowrap; }
.nav a {
  font-size: 14.5px;
  color: var(--ink-700);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.nav a:hover { color: var(--blue-700); }
.nav a.is-active {
  color: var(--blue-700);
  border-bottom-color: var(--blue-700);
  font-weight: 600;
}

/* --- Dropdown (法人クリーニング ▼) --- */
.nav-dd { position: relative; display: inline-flex; align-items: center; }
.nav-dd__btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: 0;
  padding: 6px 2px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink-700);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.nav-dd__btn:hover { color: var(--blue-700); }
.nav-dd__btn.is-active {
  color: var(--blue-700);
  border-bottom-color: var(--blue-700);
  font-weight: 600;
}
.nav-dd__chev { transition: transform .2s; }
.nav-dd.is-open .nav-dd__chev { transform: rotate(180deg); }
.nav-dd__menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translate(-50%, -6px);
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(15, 30, 60, .12);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .15s, transform .15s, visibility .15s;
  z-index: 60;
}
.nav-dd.is-open .nav-dd__menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
/* hover bridge so cursor can travel from button to menu without closing */
.nav-dd__menu::before {
  content: "";
  position: absolute;
  top: -14px; left: 0; right: 0;
  height: 14px;
}
.nav-dd__menu a {
  display: block;
  padding: 10px 18px;
  font-size: 14px;
  color: var(--ink-800);
  border-bottom: 0;
  white-space: nowrap;
}
.nav-dd__menu a:hover {
  background: var(--blue-50);
  color: var(--blue-700);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue-700);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 6px;
  transition: background .15s, transform .15s;
}
.nav-cta:hover { background: var(--blue-800); }
.nav-cta:active { transform: translateY(1px); }

.mobile-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--ink-800); margin-left: auto; }

@media (max-width: 1040px) {
  .nav { display: none; }
  .mobile-toggle { display: inline-flex; }
  .nav-cta.header-cta { display: none; }
  .site-header__inner { gap: 12px; }
  .mobile-drawer {
    display: block;
    border-top: 1px solid var(--ink-200);
    padding: 12px 24px 20px;
    background: #fff;
  }
  .mobile-drawer a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--ink-100);
    font-size: 15px;
  }
  .mobile-drawer__sub-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: 0;
    border-bottom: 1px solid var(--ink-100);
    padding: 12px 0;
    font-size: 15px;
    font-family: inherit;
    color: var(--ink-800);
    cursor: pointer;
  }
  .mobile-drawer__sub-toggle svg { transition: transform .2s; }
  .mobile-drawer__sub-toggle svg.is-open { transform: rotate(180deg); }
  .mobile-drawer__sub {
    background: var(--blue-50);
    margin: 0 -24px;
    padding: 4px 24px 8px 36px;
  }
  .mobile-drawer__sub a {
    font-size: 14px;
    color: var(--ink-700);
    border-bottom: 1px dashed var(--ink-100);
    padding: 11px 0;
  }
  .mobile-drawer__sub a:last-child { border-bottom: 0; }
  .mobile-drawer .nav-cta { margin-top: 12px; width: 100%; justify-content: center; }
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s, transform .08s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--blue-700);
  color: #fff;
}
.btn--primary:hover { background: var(--blue-800); }
.btn--secondary {
  background: #fff;
  color: var(--blue-700);
  border-color: var(--blue-200);
}
.btn--secondary:hover { border-color: var(--blue-700); background: var(--blue-50); }
.btn--ghost {
  background: transparent;
  color: var(--blue-700);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--blue-50); }
.btn--lg { padding: 16px 28px; font-size: 16px; }
.btn--sm { padding: 9px 14px; font-size: 13.5px; }
.btn--block { width: 100%; }

.btn .icon { width: 18px; height: 18px; }

/* ============ Breadcrumb ============ */
.crumb {
  font-size: 13px;
  color: var(--ink-500);
  padding: 18px 0 6px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.crumb a:hover { color: var(--blue-700); }
.crumb .sep { color: var(--ink-300); }
.crumb .current { color: var(--ink-700); }

/* ============ Hero (page) ============ */
.page-hero {
  position: relative;
  background: linear-gradient(180deg, var(--surface-tint) 0%, var(--surface-tint-2) 100%);
  overflow: hidden;
}
.page-hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 24px 56px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: center;
}
.page-hero h1 {
  font-size: 40px;
  line-height: 1.3;
  color: var(--blue-900);
  letter-spacing: 0.01em;
  font-weight: 800;
  margin: 8px 0 18px;
}
.page-hero .lede {
  color: var(--ink-700);
  font-size: 15.5px;
  line-height: 1.9;
  margin-bottom: 24px;
  max-width: 36em;
}
.page-hero .pills {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px;
}
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--ink-700);
}
.pill .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--blue-500); }
.page-hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .page-hero__inner { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 30px; }
}

/* ============ Placeholder imagery ============ */
.ph {
  position: relative;
  background:
    repeating-linear-gradient(
      135deg,
      rgba(30,64,175,0.06) 0 8px,
      rgba(30,64,175,0.03) 8px 16px
    ),
    var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-700);
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
  overflow: hidden;
}
.ph.ph--hero { aspect-ratio: 5/3; }
.ph.ph--tall { aspect-ratio: 4/3; }
.ph.ph--square { aspect-ratio: 1/1; }
.ph.ph--wide { aspect-ratio: 16/9; }
.ph.ph--img {
  background: #f7f9fc;
  border-color: var(--ink-100);
}
.ph__label {
  padding: 6px 10px;
  background: rgba(255,255,255,0.7);
  border-radius: 4px;
  backdrop-filter: blur(2px);
}

/* ============ Section Heading ============ */
.sec-head { text-align: center; margin-bottom: 36px; }
.sec-head__eyebrow {
  display: inline-block;
  color: var(--blue-700);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  font-weight: 600;
  margin-bottom: 8px;
}
.sec-head h2 {
  font-size: 26px;
  color: var(--ink-900);
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}
.sec-head p {
  color: var(--ink-600);
  font-size: 14.5px;
  margin: 0;
}

/* ============ Card ============ */
.card {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.card:hover { border-color: var(--blue-200); box-shadow: var(--shadow-md); }

/* ============ Industry Card ============ */
.industry {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.industry:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-300);
  transform: translateY(-2px);
}
.industry__img { aspect-ratio: 4/3; }
.industry__body { padding: 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.industry__title {
  display: flex; align-items: center; gap: 8px;
  font-size: 16px; font-weight: 700; color: var(--ink-900);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--ink-200);
}
.industry__title .icon { color: var(--blue-700); width: 20px; height: 20px; }
.industry__desc { font-size: 14px; color: var(--ink-600); line-height: 1.85; }
.industry__group-title {
  font-size: 14px; font-weight: 700; color: var(--blue-800);
  margin: 6px 0 0; padding-top: 8px; border-top: 1px solid var(--ink-100);
}
.industry__list {
  list-style: none; padding: 0; margin: 0;
  font-size: 14px; color: var(--ink-700); line-height: 2;
}
.industry__link {
  margin-top: auto;
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue-700);
  font-size: 13.5px; font-weight: 600;
  padding: 10px 0 0;
  border-top: 1px solid var(--ink-100);
}
.industry__link:hover { color: var(--blue-800); }

/* ============ Feature Grid ============ */
.feat-grid { display: grid; gap: 16px; }
.feat {
  display: flex; flex-direction: column; gap: 10px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-md);
  transition: border-color .15s, box-shadow .15s;
}
.feat:hover { border-color: var(--blue-200); box-shadow: var(--shadow-sm); }
.feat__icon {
  width: 40px; height: 40px; border-radius: 999px;
  background: var(--blue-50); color: var(--blue-700);
  display: inline-flex; align-items: center; justify-content: center;
}
.feat__icon svg { width: 20px; height: 20px; }
.feat__title { font-size: 15.5px; font-weight: 700; color: var(--ink-900); }
.feat__body { font-size: 13.5px; color: var(--ink-600); line-height: 1.8; }

/* ============ FAQ ============ */
.faq-item {
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: 8px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.faq-item.is-open { border-color: var(--blue-300); box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%;
  background: none;
  border: 0;
  padding: 16px 48px 16px 18px;
  text-align: left;
  font-size: 14.5px;
  color: var(--ink-900);
  font-weight: 500;
  cursor: pointer;
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  line-height: 1.6;
}
.faq-q__marker {
  color: var(--blue-700);
  font-weight: 800;
  font-size: 14px;
  width: 16px;
  flex-shrink: 0;
}
.faq-q__caret {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-500);
  transition: transform .2s;
}
.faq-item.is-open .faq-q__caret { transform: translateY(-50%) rotate(180deg); color: var(--blue-700); }
.faq-a {
  padding: 0 18px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height .25s ease, opacity .25s ease, padding .25s ease;
}
.faq-item.is-open .faq-a {
  padding: 4px 18px 18px 46px;
  max-height: 400px;
  opacity: 1;
}
.faq-a__body {
  font-size: 14.5px;
  color: var(--ink-700);
  line-height: 1.9;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border-top: 1px dashed var(--ink-200);
  padding-top: 12px;
}
.faq-a__marker { color: var(--ink-400); font-weight: 800; flex-shrink: 0; }

/* ============ Form ============ */
.form-row { display: grid; gap: 6px; margin-bottom: 20px; }
.form-row label {
  font-size: 13.5px;
  color: var(--ink-800);
  font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.form-row .req {
  background: var(--blue-700);
  color: #fff;
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 3px;
  font-weight: 700;
}
.form-row .opt {
  background: var(--ink-200);
  color: var(--ink-700);
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 3px;
  font-weight: 700;
}
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--ink-300);
  border-radius: 6px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink-900);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: 0;
  border-color: var(--blue-700);
  box-shadow: 0 0 0 3px rgba(30,64,175,0.12);
}
.form-row textarea { min-height: 130px; resize: vertical; line-height: 1.7; }
.form-row .hint { font-size: 12px; color: var(--ink-500); margin-top: 4px; }
.form-row.has-error input,
.form-row.has-error select,
.form-row.has-error textarea { border-color: var(--ng); }
.form-row .err { font-size: 12.5px; color: var(--ng); margin-top: 4px; display: none; }
.form-row.has-error .err { display: block; }

.checkgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 14px; }
.checkgrid label { font-size: 13px; font-weight: 500; gap: 6px; cursor: pointer; }
.checkgrid input { accent-color: var(--blue-700); }

/* ============ Footer ============ */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--ink-200);
  padding: 56px 0 28px;
  color: var(--ink-700);
  font-size: 13px;
}
.site-footer__grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.site-footer h4 {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-900);
  margin: 0 0 14px;
  letter-spacing: 0.06em;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a:hover { color: var(--blue-700); }
.site-footer__meta {
  max-width: var(--container);
  margin: 32px auto 0;
  padding: 20px 24px 0;
  border-top: 1px solid var(--ink-100);
  font-size: 12px;
  color: var(--ink-500);
  text-align: center;
}
@media (max-width: 860px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

/* ============ Utility ============ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
@media (max-width: 1040px) { .grid-5 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .grid-5, .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; gap: 12px; } }
@media (max-width: 520px) { .grid-5, .grid-4, .grid-3 { grid-template-columns: 1fr; } }

.kicker {
  display: inline-block;
  color: var(--blue-700);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
}

/* ============ Bottom CTA Band ============ */
.cta-band {
  margin: 56px 0 0;
  background: #fff;
  border: 1px solid var(--ink-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  align-items: center;
}
.cta-band__img {
  width: 80px; height: 80px; border-radius: 999px;
  background:
    repeating-linear-gradient(45deg, rgba(30,64,175,0.08) 0 6px, rgba(30,64,175,0.03) 6px 12px),
    var(--blue-50);
  border: 1px solid var(--blue-100);
  display:flex; align-items:center; justify-content:center;
  color: var(--blue-700); font-family: ui-monospace, monospace; font-size: 10px;
}
.cta-band__title {
  font-size: 18px; font-weight: 700; color: var(--ink-900); margin: 0 0 6px;
}
.cta-band__sub { font-size: 14px; color: var(--ink-600); margin: 0; }
.cta-band__actions { display: flex; flex-direction: column; gap: 8px; }
@media (max-width: 760px) {
  .cta-band { grid-template-columns: 1fr; text-align: left; }
  .cta-band__actions { flex-direction: row; flex-wrap: wrap; }
}

/* ============ In-view reveal ============ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-in { opacity: 1; transform: none; }