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

:root {
  --bg: #ffffff;
  --bg-alt: #eef1f6;
  --text: #111111;
  --text-sub: #555555;
  --white: #ffffff;
  --primary: #0f3d6e;
  --primary-dark: #0a1e3a;
  --accent: #d4582a;
  --sans: "Noto Sans JP", sans-serif;
  --serif: "Noto Serif JP", serif;
  --en: "Inter", sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--text); background: var(--bg); font-size: 16px; line-height: 1.8; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85); backdrop-filter: blur(12px);
  height: 96px; transition: background 0.3s;
}
.header-inner {
  width: 100%; max-width: 100%; margin: 0;
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; padding: 0 0 0 4%;
}
.logo { display: flex; align-items: center; gap: 14px; }
.logo-mark {
  height: 60px; width: auto; object-fit: contain;
}
.logo-text .logo-name { font-size: 16px; font-weight: 700; letter-spacing: 0.08em; }
.logo-text .logo-sub { font-size: 10px; color: var(--text-sub); letter-spacing: 0.06em; }

.nav { display: flex; align-items: center; gap: 36px; }
.nav a { font-size: 14px; font-weight: 500; letter-spacing: 0.06em; transition: color 0.3s; position: relative; padding-bottom: 6px; }
.nav a::after { content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 2px; background: var(--accent); transition: width 0.3s, left 0.3s; }
.nav a:hover { color: var(--primary); }
.nav a:hover::after { width: 100%; left: 0; }

.header-right { display: flex; align-items: stretch; gap: 0; }
.header-btn {
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  height: 96px; width: 140px; font-size: 16px; font-weight: 500;
  color: var(--white); letter-spacing: 0.08em; transition: opacity 0.3s;
}
.header-btn:hover { opacity: 0.85; }
.header-btn-tel { background: transparent; color: var(--text); width: auto; padding: 0 28px; }
.header-btn-tel .tel-num { font-family: var(--en); font-size: 20px; font-weight: 700; color: var(--text); }
.header-btn-tel .tel-time { font-size: 10px; color: var(--text-sub); }
.header-btn-contact { background: var(--primary); width: 160px; text-align: center; }
.header-btn-contact .btn-en { font-family: var(--en); font-size: 14px; font-weight: 700; letter-spacing: 0.1em; }
.header-btn-contact .btn-jp { font-size: 11px; margin-top: 2px; }

/* ===== HERO ===== */
.hero {
  margin-top: 96px; height: calc(100vh - 96px); min-height: 600px;
  display: flex; align-items: center;
  color: var(--white); position: relative; overflow: hidden;
}
.hero-slides { position: absolute; inset: 0; z-index: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.5s ease-in-out;
}
.hero-slide.active { opacity: 1; }
.hero-slide::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.4), rgba(0,0,0,0.15));
}
.hero-dots {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 12px; z-index: 2;
}
.hero-dot {
  width: 10px; height: 10px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(255,255,255,0.4); transition: background 0.3s, transform 0.3s;
  padding: 0;
}
.hero-dot.active { background: var(--white); transform: scale(1.3); }
.hero-inner { width: 90%; max-width: 1430px; margin: 0 auto; position: relative; z-index: 1; }
.hero-catch {
  font-size: 52px; font-weight: 900; line-height: 1.5; letter-spacing: 0.08em;
}
.hero-sub {
  font-size: 16px; margin-top: 28px; color: #ffffff; line-height: 2; max-width: 560px;
}
.hero-cta {
  display: inline-block; margin-top: 44px;
  background: var(--accent); color: var(--white);
  font-size: 16px; font-weight: 700; padding: 20px 52px;
  letter-spacing: 0.06em; transition: opacity 0.3s;
}
.hero-cta:hover { opacity: 0.85; }
.hero-watermark {
  position: absolute; bottom: -40px; right: 0;
  font-family: var(--en); font-size: 220px; font-weight: 900;
  color: rgba(255,255,255,0.04); letter-spacing: 0.08em;
  pointer-events: none; white-space: nowrap; line-height: 1;
}

/* ===== ABOUT ===== */
.about { padding: 160px 0; position: relative; overflow: hidden; }
.about-car {
  position: absolute; right: 40px; bottom: 40px;
  width: 420px; height: 420px; object-fit: cover;
  opacity: 0.35; pointer-events: none;
  border-radius: 50%;
}
.about-watermark {
  position: absolute; top: 20px; left: -20px;
  font-family: var(--en); font-size: 160px; font-weight: 900;
  color: rgba(15,61,110,0.04); line-height: 1; pointer-events: none;
}
.about-inner { width: 90%; max-width: 1430px; margin: 0 auto; display: grid; grid-template-columns: 5fr 6fr; gap: 60px; align-items: start; }
.about-catch { font-size: 30px; font-weight: 900; line-height: 1.8; color: var(--primary); border-left: 4px solid var(--accent); padding-left: 24px; }
.about-text p { font-size: 15px; line-height: 2; margin-bottom: 16px; }
.about-badges { display: flex; gap: 24px; margin-top: 32px; flex-wrap: wrap; }
.about-badge {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  width: 130px; height: 130px; border-radius: 50%;
  border: 2px solid var(--primary); background: var(--bg);
  font-size: 12px; font-weight: 700; color: var(--primary); line-height: 1.2;
  text-align: center; padding: 10px;
}
.about-badge span { font-family: var(--en); font-size: 28px; font-weight: 900; display: block; margin: 2px 0; }
.about-link {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 15px; font-weight: 500; margin-top: 20px; padding: 12px 0;
  border-bottom: 1px solid var(--text); transition: border-color 0.3s;
}
.about-link::after { content: '»'; font-size: 20px; }
.about-link:hover { border-color: var(--primary); color: var(--primary); }

/* ===== NEWS ===== */
.news { padding: 80px 0; background: var(--bg-alt); }
.news-inner { width: 90%; max-width: 1430px; margin: 0 auto; display: grid; grid-template-columns: 200px 1fr; gap: 48px; align-items: start; }
.news-head h2 { font-size: 24px; font-weight: 900; color: #0f3d6e; }
.news-head .news-en { font-family: var(--en); font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 4px; }
.news-list { list-style: none; }
.news-item { display: flex; gap: 24px; padding: 20px 0; border-bottom: 1px solid rgba(0,0,0,0.08); align-items: baseline; }
.news-item:first-child { padding-top: 0; }
.news-date { font-family: var(--en); font-size: 14px; font-weight: 500; color: var(--text-sub); white-space: nowrap; min-width: 100px; }
.news-tag { font-size: 11px; background: var(--primary); color: var(--white); padding: 2px 10px; white-space: nowrap; }
.news-title { font-size: 15px; }

/* ===== NUMBERS ===== */
.numbers {
  background-color: #0f3d6e;
  background-image: linear-gradient(135deg, rgba(10,30,58,0.92), rgba(15,61,110,0.88)), url('../img/hero.jpg');
  background-size: cover; background-position: center;
  padding: 100px 0;
  position: relative; overflow: hidden;
}
.numbers-watermark {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  font-family: var(--en); font-size: 180px; font-weight: 900;
  color: rgba(255,255,255,0.04); white-space: nowrap; pointer-events: none;
}
.numbers-inner {
  width: 90%; max-width: 1000px; margin: 0 auto;
  display: flex; justify-content: space-between; position: relative; z-index: 1;
}
.num-item { text-align: center; }
.num-val { font-family: var(--en); font-size: 60px; font-weight: 900; color: var(--white); line-height: 1; }
.num-val span { font-size: 20px; font-weight: 500; }
.num-label { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 12px; letter-spacing: 0.06em; }

/* ===== FEATURE SECTION ===== */
.feat { padding: 160px 0; position: relative; overflow: hidden; }
.feat-white { background: var(--bg); }
.feat-gray { background: var(--bg-alt); }
.feat-inner { width: 90%; max-width: 1430px; margin: 0 auto; }
.feat-watermark {
  position: absolute; top: 20px; right: -40px;
  font-family: var(--en); font-size: 200px; font-weight: 900;
  color: rgba(15,61,110,0.04); line-height: 1; pointer-events: none;
  letter-spacing: 0.04em; text-align: right;
}
.feat-num {
  font-family: var(--en); font-size: 80px; font-weight: 900;
  color: var(--primary); opacity: 0.15; letter-spacing: 0.08em; line-height: 1;
  margin-bottom: -8px;
}
.feat-title {
  font-size: 32px; font-weight: 700; line-height: 1.5;
  margin-bottom: 20px;
}
.feat-desc {
  font-size: 16px; line-height: 1.8; margin-bottom: 48px; max-width: 900px;
}

/* 3col cards with icons in circle border */
.feat-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 60px; }
.feat-card {
  background: var(--bg-alt); border-radius: 0; padding: 48px 32px;
  text-align: center;
}
.feat-gray .feat-card { background: var(--white); }
.feat-card-icon {
  width: 120px; height: 120px; margin: 0 auto 24px;
  border: 2px solid rgba(15,61,110,0.3); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.feat-card-icon img { width: 70%; height: 70%; object-fit: contain; }
.feat-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 16px; }
.feat-card ul { list-style: none; text-align: left; }
.feat-card li {
  font-size: 14px; line-height: 1.8; padding: 4px 0 4px 20px;
  position: relative;
}
.feat-card li::before {
  content: '●'; position: absolute; left: 0; top: 4px;
  color: var(--primary); font-size: 8px;
}

/* POINT box */
.point-box {
  background: var(--bg-alt); padding: 48px 56px;
  border-top: 3px solid var(--accent); border-radius: 0 0 6px 6px;
}
.feat-gray .point-box { background: var(--white); }
.point-label {
  font-family: var(--en); font-size: 14px; font-weight: 800;
  color: var(--accent); letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 8px;
}
.point-title { font-size: 22px; font-weight: 700; margin-bottom: 24px; line-height: 1.5; }
.point-list { list-style: none; }
.point-list li {
  font-size: 16px; line-height: 1.8; padding: 10px 0 10px 36px;
  position: relative; border-bottom: 1px solid rgba(0,0,0,0.06);
}
.point-list li:last-child { border-bottom: none; }
.point-list li::before {
  content: ''; position: absolute; left: 0; top: 16px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
  background-size: 14px; background-position: center; background-repeat: no-repeat;
}

/* ===== SERVICE IMAGE CARDS ===== */
.svc-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 60px; }
.svc-card { background: var(--white); box-shadow: 0 2px 12px rgba(0,0,0,0.04); overflow: hidden; }
.feat-gray .svc-card { background: var(--white); }
.svc-card-img { height: 160px; overflow: hidden; }
.svc-card-img img { width: 100%; height: 100%; object-fit: cover; }
.svc-card-body { padding: 20px; }
.svc-card-body h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.svc-card-body p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

/* ===== GREETING ===== */
.greeting { padding: 160px 0; background: var(--bg); }
.greeting-inner { width: 90%; max-width: 1430px; margin: 0 auto; display: grid; grid-template-columns: 2fr 3fr; gap: 80px; align-items: center; }
.greeting-photo {
  aspect-ratio: 3/4; overflow: hidden;
  background: url('../img/greeting-bg.jpg') center/cover no-repeat;
  display: flex; align-items: center; justify-content: center;
  color: rgba(0,0,0,0.3); font-size: 14px;
}
.greeting-text .g-pos { font-size: 14px; color: var(--text-sub); letter-spacing: 0.1em; }
.greeting-text .g-name { font-size: 32px; font-weight: 900; margin: 8px 0 32px; color: var(--primary); }
.greeting-text p { font-size: 16px; line-height: 2; margin-bottom: 20px; }
.greeting-text .g-qual { font-size: 13px; color: var(--text-sub); letter-spacing: 0.06em; margin-top: 8px; }

/* ===== AREA ===== */
.area { padding: 160px 0; background: var(--bg-alt); }
.area-inner { width: 90%; max-width: 1430px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.area-map img { width: 100%; border-radius: 0; }
.area-info h3 { font-size: 28px; font-weight: 900; margin-bottom: 24px; color: var(--primary); line-height: 1.6; }
.area-info p { font-size: 16px; line-height: 2; margin-bottom: 16px; }
.area-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.area-tag { background: var(--white); border: 1px solid #d0d5e0; padding: 10px 24px; font-size: 14px; letter-spacing: 0.04em; }
.area-tag.main { background: var(--primary); color: var(--white); border-color: var(--primary); font-weight: 700; }

/* ===== RESULTS ===== */
.results { padding: 160px 0; background: var(--bg); position: relative; overflow: hidden; }
.results-inner { width: 90%; max-width: 1430px; margin: 0 auto; }
.sec-head { margin-bottom: 60px; }
.sec-head .sec-en {
  font-family: var(--en); font-size: 120px; font-weight: 700;
  color: var(--primary); opacity: 0.08; line-height: 1; margin-bottom: -24px;
}
.sec-head h2 { font-size: 32px; font-weight: 900; }
.results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.result-card { background: var(--white); box-shadow: 0 2px 12px rgba(0,0,0,0.04); overflow: hidden; transition: transform 0.3s; }
.result-card:hover { transform: translateY(-4px); }
.result-thumb { height: 200px; overflow: hidden; }
.result-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.result-card:hover .result-thumb img { transform: scale(1.05); }
.result-body { padding: 24px; }
.result-tag { display: inline-block; background: var(--primary); color: var(--white); font-size: 11px; padding: 4px 12px; margin-bottom: 10px; letter-spacing: 0.04em; }
.result-body h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.result-body p { font-size: 14px; color: var(--text-sub); }

/* ===== MUSEUM ===== */
.museum {
  padding: 160px 0; color: #ffffff; position: relative; overflow: hidden;
  background-color: #0a1e3a;
  background-image:
    radial-gradient(circle 320px at 85% 10%, rgba(255,255,255,0.10) 0%, transparent 70%),
    radial-gradient(circle 260px at 8% 75%, rgba(255,255,255,0.08) 0%, transparent 70%),
    radial-gradient(circle 200px at 70% 90%, rgba(255,255,255,0.07) 0%, transparent 70%),
    radial-gradient(circle 150px at 30% 95%, rgba(255,255,255,0.06) 0%, transparent 70%),
    linear-gradient(135deg, #0a1e3a, #0f3d6e);
}
.museum::before {
  content: ''; position: absolute; top: -80px; right: -40px;
  width: 550px; height: 550px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.08);
  pointer-events: none;
}
.museum::after {
  content: ''; position: absolute; bottom: -60px; left: -30px;
  width: 420px; height: 420px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.06);
  pointer-events: none;
}
.museum-inner { width: 90%; max-width: 1430px; margin: 0 auto; }
.museum .sec-head .sec-en { color: var(--white); opacity: 0.06; }
.museum .sec-head h2 { color: var(--white); }
.museum-watermark {
  position: absolute; bottom: -30px; right: -20px;
  font-family: var(--en); font-size: 200px; font-weight: 900;
  color: rgba(255,255,255,0.03); pointer-events: none; letter-spacing: 0.05em;
}
.museum-hero { margin-bottom: 48px; }
.museum-hero img { width: 100%; height: 400px; object-fit: cover; }
.museum-text h3 { font-size: 28px; font-weight: 700; margin-bottom: 20px; }
.museum-text p { font-size: 16px; line-height: 2; color: rgba(255,255,255,0.8); margin-bottom: 16px; }
.museum-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 40px 0; }
.museum-gallery img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.museum-specs {
  display: flex; gap: 64px; padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin: 32px 0;
}
.museum-spec { text-align: center; }
.museum-spec-num { font-family: var(--en); font-size: 48px; font-weight: 900; color: var(--white); }
.museum-spec-label { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 6px; }
.museum-note { font-size: 14px; color: rgba(255,255,255,0.45); }

/* ===== CTA ===== */
.cta {
  padding: 120px 0; text-align: center; color: #ffffff;
  background-color: #0a1e3a;
  background-image: linear-gradient(135deg, rgba(10,30,58,0.92) 0%, rgba(15,61,110,0.88) 100%), url('../img/cta-bg.jpg');
  background-size: cover; background-position: center;
  position: relative;
}
.cta-inner { width: 90%; max-width: 1000px; margin: 0 auto; }
.cta-label { font-family: var(--en); font-size: 14px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.cta h2 { font-size: 36px; font-weight: 900; margin-bottom: 16px; letter-spacing: 0.06em; line-height: 1.5; }
.cta-sub { font-size: 16px; opacity: 0.6; margin-bottom: 48px; }
.cta-actions { display: flex; gap: 32px; justify-content: center; align-items: stretch; }
.cta-action-card {
  background: rgba(255,255,255,0.08); backdrop-filter: blur(8px);
  padding: 40px 48px; flex: 1; max-width: 420px;
  border: 1px solid rgba(255,255,255,0.1); transition: background 0.3s;
}
.cta-action-card:hover { background: rgba(255,255,255,0.12); }
.cta-action-icon { margin-bottom: 16px; }
.cta-action-icon svg { width: 36px; height: 36px; }
.cta-action-title { font-size: 14px; font-weight: 700; letter-spacing: 0.08em; margin-bottom: 16px; opacity: 0.7; }
.cta-tel { font-family: var(--en); font-size: 36px; font-weight: 900; letter-spacing: 0.04em; line-height: 1.3; }
.cta-time { font-size: 13px; opacity: 0.4; margin-top: 8px; }
.cta-btn {
  display: inline-block; margin-top: 8px;
  background: var(--accent); color: var(--white);
  font-size: 16px; font-weight: 700; padding: 20px 48px;
  letter-spacing: 0.06em; transition: opacity 0.3s;
}
.cta-btn:hover { opacity: 0.85; }
.cta-btn-sub { font-size: 12px; margin-top: 8px; opacity: 0.5; }

/* ===== FOOTER ===== */
.footer {
  background-color: #0a1e3a;
  background-image: linear-gradient(to top, #0f3d6e, #0a1e3a);
  color: rgba(255,255,255,0.85); padding: 80px 0 40px;
}
.footer-inner {
  width: 90%; max-width: 1430px; margin: 0 auto;
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 48px;
}
.footer-logo .f-name { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 8px; letter-spacing: 0.06em; }
.footer-logo .f-tel { font-family: var(--en); font-size: 22px; font-weight: 700; color: var(--white); margin-bottom: 16px; letter-spacing: 0.02em; }
.footer-logo p { font-size: 13px; line-height: 2; }
.footer-logo .f-meta { font-size: 11px; margin-top: 16px; line-height: 1.8; opacity: 0.8; }
.footer-nav h4 { font-size: 14px; color: var(--white); font-weight: 700; margin-bottom: 20px; letter-spacing: 0.06em; }
.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 12px; }
.footer-nav a { font-size: 13px; transition: color 0.3s; }
.footer-nav a:hover { color: var(--white); }
.footer-copy {
  width: 90%; max-width: 1430px; margin: 48px auto 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; padding-top: 24px; color: rgba(255,255,255,0.9);
  border-top: 1px solid rgba(255,255,255,0.15); letter-spacing: 0.04em;
}
.footer-copy-links { display: flex; gap: 16px; }
.footer-copy-links a { color: rgba(255,255,255,0.7); transition: color 0.3s; }
.footer-copy-links a:hover { color: var(--white); }

/* ===== SIDE TAB ===== */
.side-tab {
  position: fixed; right: 20px; bottom: 120px;
  z-index: 90;
}
.side-tab a {
  display: flex; align-items: center; gap: 0;
  height: 80px; border-radius: 40px;
  background: var(--primary-dark); color: var(--white);
  font-size: 14px; font-weight: 700; line-height: 1.3;
  letter-spacing: 0.04em; text-decoration: none;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  padding-right: 0; overflow: hidden; white-space: nowrap;
}
.side-tab a:hover { background: var(--accent); padding-right: 24px; }
.side-tab-text { max-width: 0; opacity: 0; transition: max-width 0.4s cubic-bezier(0.4,0,0.2,1), opacity 0.3s; overflow: hidden; }
.side-tab a:hover .side-tab-text { max-width: 200px; opacity: 1; }
.side-tab-img {
  width: 80px; height: 80px; border-radius: 50%;
  overflow: hidden; flex-shrink: 0; border: 3px solid rgba(255,255,255,0.4);
}
.side-tab-img img { width: 100%; height: 100%; object-fit: cover; }

/* ===== SCROLL PROGRESS ===== */
.scroll-progress {
  position: fixed; top: 96px; left: 0; right: 0; height: 3px;
  z-index: 99; background: rgba(0,0,0,0.05);
}
.scroll-progress-bar {
  height: 100%; width: 0%; background: var(--accent);
  transition: width 0.1s;
}


/* ===== HAMBURGER + MOBILE NAV ===== */
.hamburger { display: none; background: none; border: none; cursor: pointer; width: 28px; height: 20px; position: relative; padding: 0; z-index: 101; margin-right: 20px; }
.hamburger span { display: block; width: 100%; height: 2px; background: var(--text); position: absolute; left: 0; transition: all .3s; }
.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 9px; }
.hamburger span:nth-child(3) { top: 18px; }
.hamburger.active span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { top: 9px; transform: rotate(-45deg); }

.mobile-nav {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.98); z-index: 100;
  flex-direction: column; align-items: center; gap: 0;
  padding-top: 96px; overflow-y: auto;
}
.mobile-nav.active { display: flex; }
.mobile-nav-close {
  position: absolute; top: 20px; right: 20px;
  background: none; border: none; color: #333;
  font-size: 32px; cursor: pointer; line-height: 1; padding: 8px;
  z-index: 101; transition: color 0.2s;
}
.mobile-nav-close:hover { color: var(--accent); }
.mobile-nav-logo { padding: 24px 0 16px; width: 100%; display: flex; justify-content: center; margin-bottom: 16px; }
.mobile-nav-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  width: 90%; max-width: 400px; background: #ffffff;
  border-radius: 12px; overflow: hidden;
}
.mobile-nav-grid a {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; padding: 24px 8px; background: #ffffff;
  color: #111; font-size: 12px; font-weight: 600;
  letter-spacing: 0.04em; transition: background 0.2s;
}
.mobile-nav-grid a:hover { background: #eef1f6; }
.mobile-nav-grid a svg { width: 24px; height: 24px; stroke: var(--primary); fill: none; stroke-width: 1.5; }
.mobile-nav-grid a.mn-wide { grid-column: span 2; flex-direction: row; gap: 12px; padding: 18px; font-size: 13px; }
.mobile-nav-tel {
  margin-top: 28px; text-align: center;
}
.mobile-nav-tel a {
  font-family: var(--en); font-size: 26px; font-weight: 900; color: #0f3d6e;
  display: block; margin-bottom: 6px; letter-spacing: 0.02em;
}
.mobile-nav-tel .tel-hours { font-size: 11px; color: var(--text-sub); }
.mobile-nav-cta {
  margin-top: 20px; margin-bottom: 32px;
}
.mobile-nav-cta a {
  display: inline-block; background: var(--accent); color: var(--white);
  font-size: 14px; font-weight: 700; padding: 14px 44px; letter-spacing: 0.06em;
  border-radius: 4px; transition: opacity 0.3s;
}
.mobile-nav-cta a:hover { opacity: 0.85; }
/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .nav { display: none; } .hamburger { display: block; }
  .svc-cards { grid-template-columns: repeat(2, 1fr); }
  .feat-cards { grid-template-columns: repeat(2, 1fr); }
  .results-grid { grid-template-columns: repeat(2, 1fr); }
  .scroll-progress { top: 64px; }
}
@media (max-width: 767px) {
  .header { height: 64px; } .mobile-nav { padding-top: 64px; }
  .header-btn { height: 64px; width: 100px; }
  .header-btn-tel { display: none; } .header-btn-contact { display: none; }
  .hero { margin-top: 64px; min-height: 500px; }
  .hero-catch { font-size: 30px; }
  .hero-watermark { font-size: 100px; }
  .about, .feat, .greeting, .area, .results, .museum, .cta { padding: 80px 0; }
  .about-inner, .greeting-inner, .area-inner, .news-inner { grid-template-columns: 1fr; gap: 24px; }
  .about-catch { font-size: 24px; }
  .feat-num { font-size: 72px; }
  .feat-title { font-size: 24px; }
  .feat-watermark { font-size: 120px; }
  .svc-cards, .feat-cards { grid-template-columns: 1fr; }
  .point-box { padding: 32px 24px; }
  .point-title { font-size: 22px; }
  .numbers-inner { flex-wrap: wrap; gap: 32px; justify-content: center; }
  .num-val { font-size: 40px; }
  .greeting-photo { aspect-ratio: 16/9; }
  .sec-head .sec-en { font-size: 60px; }
  .results-grid { grid-template-columns: 1fr; }
  .museum-gallery { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; }
  .cta-tel { font-size: 32px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-action-card { max-width: 100%; width: 100%; padding: 32px 24px; }
  .side-tab { display: none; }
  .scroll-progress { top: 64px; }
}