@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root {
  --blue-dark:  #0d3d6e;
  --blue-main:  #1a6eb5;
  --blue-mid:   #2e8fd4;
  --blue-light: #5bb0e8;
  --blue-pale:  #dff0fb;
  --gray-bg:    #f4f7fa;
  --gray-line:  #d8e2ec;
  --text-dark:  #1a2533;
  --text-mid:   #4a5568;
  --white:      #ffffff;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.7;
  font-size: 15px;
}

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(13,61,110,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--blue-mid);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}
.header-logo img { height: 52px; width: 52px; object-fit: contain; }
.header-logo-text .company-name-jp {
  font-family: 'Noto Serif JP', serif;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  line-height: 1.3;
}
.header-logo-text .company-name-en {
  font-size: 10px;
  font-weight: 300;
  color: var(--blue-light);
  letter-spacing: 0.15em;
  white-space: nowrap;
}
nav { display: flex; align-items: center; gap: 2px; }
nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 4px;
  transition: all 0.2s;
  letter-spacing: 0.04em;
}
nav a:hover, nav a.active { color: #fff; background: rgba(91,176,232,0.2); }
.nav-cta {
  background: var(--blue-mid) !important;
  color: #fff !important;
  margin-left: 8px;
  font-weight: 700 !important;
  padding: 8px 20px !important;
}
.nav-cta:hover { background: var(--blue-light) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== MAIN ===== */
main { padding-top: 72px; }

/* ===== PAGE HERO ===== */
.page-hero {
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-main) 70%, var(--blue-mid) 100%);
  padding: 64px 24px 52px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(255,255,255,0.025) 20px, rgba(255,255,255,0.025) 40px);
}
.page-hero h1 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(24px, 4vw, 36px);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.1em;
  position: relative;
}
.page-hero p {
  color: var(--blue-pale);
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.25em;
  position: relative;
}

/* ===== SECTIONS ===== */
.section { padding: 80px 24px; }
.section-gray { background: var(--gray-bg); }
.container { max-width: 1160px; margin: 0 auto; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--blue-mid);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 700;
  color: var(--blue-dark);
  letter-spacing: 0.06em;
  line-height: 1.45;
}
.section-bar {
  display: block;
  width: 48px;
  height: 3px;
  background: var(--blue-mid);
  border-radius: 2px;
  margin: 16px 0 32px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.08em;
  cursor: pointer;
  border: none;
  transition: all 0.25s;
  font-family: 'Noto Sans JP', sans-serif;
}
.btn-primary { background: var(--blue-main); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,110,181,0.4); }
.btn-outline { background: transparent; color: var(--blue-main); border: 2px solid var(--blue-main); }
.btn-outline:hover { background: var(--blue-main); color: #fff; }
.btn-white { background: #fff; color: var(--blue-dark); }
.btn-white:hover { background: var(--blue-pale); }

/* ===== GRIDS ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ===== CARD ===== */
.card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,0.07);
  transition: transform 0.25s, box-shadow 0.25s;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 36px rgba(0,0,0,0.11); }
.card img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: 24px; }
.card-body h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 10px;
}
.card-body p { font-size: 13.5px; color: var(--text-mid); line-height: 1.85; }

/* ===== GALLERY ===== */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.gallery-item { aspect-ratio: 1; overflow: hidden; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; display: block; }
.gallery-item:hover img { transform: scale(1.07); }

/* ===== TABLE ===== */
.info-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.info-table th, .info-table td {
  padding: 16px 22px;
  border: 1px solid var(--gray-line);
  text-align: left;
  vertical-align: top;
  line-height: 1.75;
}
.info-table th {
  background: var(--blue-dark);
  color: #fff;
  font-weight: 500;
  width: 180px;
  white-space: nowrap;
}
.info-table tr:nth-child(even) td { background: var(--gray-bg); }

/* ===== FORM ===== */
.form-group { margin-bottom: 24px; }
.form-group label {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.form-group label .required {
  display: inline-block;
  background: #e53e3e;
  color: #fff;
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 3px;
  margin-left: 8px;
  font-weight: 700;
  letter-spacing: 0.05em;
  vertical-align: middle;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--gray-line);
  border-radius: 5px;
  font-size: 14px;
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text-dark);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(46,143,212,0.15);
}
.form-group textarea { resize: vertical; min-height: 140px; }
.form-submit { text-align: center; margin-top: 36px; }
.form-submit .btn { padding: 16px 56px; font-size: 15px; }

/* ===== POPUP ===== */
.popup-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.popup-overlay.show { display: flex; }
.popup-box {
  background: #fff;
  border-radius: 12px;
  padding: 48px 40px;
  max-width: 460px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  animation: popIn 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes popIn {
  from { transform: scale(0.8); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}
.popup-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--blue-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.popup-icon svg { width: 36px; height: 36px; }
.popup-box h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 21px;
  color: var(--blue-dark);
  font-weight: 700;
  margin-bottom: 14px;
}
.popup-box p { font-size: 13.5px; color: var(--text-mid); line-height: 1.85; margin-bottom: 28px; }
.popup-close {
  background: var(--blue-main);
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 12px 36px;
  font-size: 14px;
  font-weight: 700;
  font-family: 'Noto Sans JP', sans-serif;
  cursor: pointer;
  transition: background 0.2s;
}
.popup-close:hover { background: var(--blue-dark); }

/* ===== CTA BAND ===== */
.cta-band {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-main));
  padding: 72px 24px;
  text-align: center;
  color: #fff;
}
.cta-band h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}
.cta-band p { font-size: 14px; color: var(--blue-pale); margin-bottom: 28px; }
.cta-band .tel-big {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.cta-band .tel-big a { color: #fff; text-decoration: none; }
.cta-band .tel-note { font-size: 12px; color: rgba(255,255,255,0.55); margin-bottom: 32px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== FOOTER ===== */
footer { background: var(--blue-dark); color: rgba(255,255,255,0.72); }
.footer-main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
}
.footer-brand img {
  height: 56px; width: 56px; object-fit: contain;
  margin-bottom: 14px; display: block;
  background: rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 4px;
}
.footer-brand .name {
  font-family: 'Noto Serif JP', serif;
  font-size: 16px; color: #fff; font-weight: 700; margin-bottom: 10px;
}
.footer-brand p { font-size: 12px; line-height: 2; }
.footer-col h4 {
  font-size: 11px; font-weight: 700; letter-spacing: 0.25em;
  color: var(--blue-light); margin-bottom: 16px; text-transform: uppercase;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.68); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-col ul a:hover { color: #fff; }
.footer-tel { font-size: 22px; font-weight: 700; color: #fff; letter-spacing: 0.05em; margin-top: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 24px;
  text-align: center;
  font-size: 11.5px;
  color: rgba(255,255,255,0.4);
}

/* ===== SERVICE DETAIL ===== */
.service-block {
  padding: 72px 24px;
}
.service-block:nth-child(even) { background: var(--gray-bg); }
.service-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.service-inner.reverse { direction: rtl; }
.service-inner.reverse > * { direction: ltr; }
.service-imgs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.service-imgs img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 4px; display: block;
}
.service-imgs img:first-child { grid-column: span 2; aspect-ratio: 16/9; }
.service-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: var(--blue-pale);
  border-radius: 8px;
  margin-bottom: 16px;
}
.service-icon-wrap svg { width: 26px; height: 26px; color: var(--blue-main); }
.service-text h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}
.service-text p { font-size: 14px; color: var(--text-mid); line-height: 1.95; margin-bottom: 14px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.service-tag {
  font-size: 12px; font-weight: 700; padding: 5px 14px;
  background: var(--blue-pale); color: var(--blue-main);
  border-radius: 20px; letter-spacing: 0.04em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .service-inner { grid-template-columns: 1fr; }
  .service-inner.reverse { direction: ltr; }
}
@media (max-width: 640px) {
  .header-logo img { height: 40px; width: 40px; }
  .header-logo { gap: 10px; }
  .header-logo-text { display: flex; flex-direction: column; }
  .header-logo-text .company-name-jp { font-size: 14px; letter-spacing: 0.03em; white-space: nowrap; }
  .header-logo-text .company-name-en { font-size: 9px; letter-spacing: 0.1em; white-space: nowrap; display: block; }
  nav { display: none; }
  nav.open {
    display: flex; flex-direction: column;
    position: fixed; top: 72px; left: 0; right: 0;
    background: var(--blue-dark); padding: 20px; gap: 4px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }
  .hamburger { display: flex; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .service-imgs { grid-template-columns: 1fr; }
  .service-imgs img:first-child { grid-column: span 1; }
  .info-table th { width: 120px; }
  .popup-box { padding: 36px 24px; }
}