/* ===================================
   ZU WORLD GROUP LP - style.css
   Yahoo広告審査対応ランディングページ
   =================================== */

:root {
  --color-navy: #1a2744;
  --color-navy-light: #2a3a5c;
  --color-gold: #c9a96e;
  --color-gold-light: #d4bc8a;
  --color-white: #ffffff;
  --color-off-white: #f8f7f4;
  --color-gray-light: #eeecea;
  --color-gray: #999999;
  --color-text: #333333;
  --color-text-light: #666666;
  --font-main: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --font-en: "Cormorant Garamond", "Times New Roman", serif;
  --max-width: 1100px;
  --section-padding: 80px 0;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.8;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s;
}

a:hover {
  opacity: 0.7;
}

ul {
  list-style: none;
}

/* ---- Utility ---- */
.inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.08em;
  line-height: 1.5;
  margin-bottom: 16px;
}

.section-lead {
  font-size: 0.95rem;
  color: var(--color-text-light);
  max-width: 680px;
  margin: 0 auto 48px;
  line-height: 2;
}

.text-center {
  text-align: center;
}

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(26, 39, 68, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.3s;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  color: var(--color-white);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  font-weight: 400;
  position: relative;
}

.header-nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.3s;
}

.header-nav a:hover {
  opacity: 1;
}

.header-nav a:hover::after {
  width: 100%;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-gold);
  color: var(--color-white);
  padding: 10px 24px;
  border-radius: 4px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background 0.3s;
}

.header-cta:hover {
  opacity: 1;
  background: var(--color-gold-light);
}

/* ---- Hero / Main Visual ---- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('images/mv.png') center center / cover no-repeat;
  opacity: 0.6;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 39, 68, 0.85) 0%,
    rgba(26, 39, 68, 0.5) 50%,
    rgba(26, 39, 68, 0.3) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  padding: 0 24px;
}

.hero-logo {
  width: 200px;
  margin: 0 auto 32px;
  filter: brightness(0) invert(1);
}

.hero-catch {
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.4rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  line-height: 1.6;
  margin-bottom: 24px;
}

.hero-title strong {
  font-weight: 600;
}

.hero-sub {
  font-size: 0.95rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  opacity: 0.85;
  line-height: 2;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--color-white);
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-scroll::after {
  content: "";
  width: 1px;
  height: 40px;
  background: var(--color-gold);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---- Philosophy ---- */
.philosophy {
  padding: 100px 0;
  background: var(--color-white);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.philosophy-image {
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.philosophy-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.philosophy-body .section-label {
  margin-bottom: 12px;
}

.philosophy-body .section-title {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.philosophy-text {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 2.2;
  margin-bottom: 24px;
}

.philosophy-values {
  display: flex;
  gap: 24px;
  margin-top: 32px;
}

.philosophy-value {
  flex: 1;
  text-align: center;
  padding: 20px 12px;
  background: var(--color-off-white);
  border-radius: 4px;
}

.philosophy-value-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.philosophy-value-text {
  font-size: 0.85rem;
  color: var(--color-navy);
  font-weight: 500;
}

/* ---- Features / こだわり ---- */
.features {
  padding: var(--section-padding);
  background: var(--color-off-white);
}

.features-header {
  text-align: center;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.feature-card-image {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.feature-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.feature-card:hover .feature-card-image img {
  transform: scale(1.05);
}

.feature-card-body {
  padding: 24px;
}

.feature-card-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.feature-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.feature-card-text {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ---- Treatment / 診療案内 ---- */
.treatment {
  padding: var(--section-padding);
  background: var(--color-white);
}

.treatment-header {
  text-align: center;
  margin-bottom: 60px;
}

.treatment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.treatment-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--color-off-white);
  border-radius: 8px;
  transition: background 0.3s;
}

.treatment-item:hover {
  background: var(--color-gray-light);
}

.treatment-item-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.treatment-item-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.treatment-item-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.treatment-item-desc {
  font-size: 0.78rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---- Flow / 診療の流れ ---- */
.flow {
  padding: var(--section-padding);
  background: var(--color-navy);
  color: var(--color-white);
}

.flow-header {
  text-align: center;
  margin-bottom: 60px;
}

.flow-header .section-title {
  color: var(--color-white);
}

.flow-header .section-lead {
  color: rgba(255, 255, 255, 0.7);
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.flow-step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
  counter-increment: step;
}

.flow-step::before {
  content: "0" counter(step);
  font-family: var(--font-en);
  font-size: 2.4rem;
  font-weight: 300;
  color: var(--color-gold);
  display: block;
  margin-bottom: 16px;
  line-height: 1;
}

.flow-step-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.flow-step-text {
  font-size: 0.82rem;
  opacity: 0.75;
  line-height: 1.8;
}

.flow-step + .flow-step::after {
  content: "";
  position: absolute;
  left: -12px;
  top: 48px;
  width: 1px;
  height: 24px;
  background: var(--color-gold);
  opacity: 0.4;
}

/* ---- Group / グループ紹介 ---- */
.group {
  padding: var(--section-padding);
  background: var(--color-off-white);
}

.group-header {
  text-align: center;
  margin-bottom: 60px;
}

.group-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.group-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s;
  padding: 36px 32px;
  text-align: center;
  border: 1px solid var(--color-gray-light);
}

.group-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.group-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-off-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.group-card-icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-gold);
}

.group-card-label {
  font-family: var(--font-en);
  font-size: 0.72rem;
  color: var(--color-gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.group-card-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.group-card-text {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

.group-card-location {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--color-gray);
}

.group-card-location svg {
  width: 14px;
  height: 14px;
  fill: var(--color-gray);
}

/* ---- SDGs ---- */
.sdgs {
  padding: 60px 0;
  background: var(--color-white);
}

.sdgs-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}

.sdgs-image {
  width: 240px;
  flex-shrink: 0;
}

.sdgs-body .section-title {
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.sdgs-text {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 2;
}

/* ---- Access / アクセス ---- */
.access {
  padding: var(--section-padding);
  background: var(--color-off-white);
}

.access-header {
  text-align: center;
  margin-bottom: 60px;
}

.access-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.access-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
}

.access-card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.access-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.access-card-body {
  padding: 28px;
}

.access-card-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.access-card-info {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 2;
}

.access-card-info dt {
  color: var(--color-navy);
  font-weight: 500;
  display: inline;
}

.access-card-info dd {
  display: inline;
  margin-left: 8px;
}

.access-card-info dd::after {
  content: "";
  display: block;
  margin-bottom: 8px;
}

.access-card-hours {
  margin-top: 16px;
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.access-card-hours th,
.access-card-hours td {
  padding: 8px 10px;
  text-align: center;
  border: 1px solid var(--color-gray-light);
}

.access-card-hours th {
  background: var(--color-navy);
  color: var(--color-white);
  font-weight: 500;
}

.access-card-hours td {
  color: var(--color-text);
}

.access-card-tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.04em;
}

.access-card-tel svg {
  width: 20px;
  height: 20px;
  fill: var(--color-gold);
}

.access-card-map {
  margin-top: 20px;
  border-radius: 6px;
  overflow: hidden;
  width: 100%;
}

.access-card-map iframe {
  width: 100%;
  height: 280px;
  display: block;
  border: 0;
}

/* ---- CTA ---- */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  text-align: center;
  color: var(--color-white);
}

.cta .section-title {
  color: var(--color-white);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.cta-text {
  font-size: 0.92rem;
  opacity: 0.8;
  margin-bottom: 36px;
  line-height: 2;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  border-radius: 4px;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: all 0.3s;
}

.cta-btn--primary {
  background: var(--color-gold);
  color: var(--color-white);
}

.cta-btn--primary:hover {
  opacity: 1;
  background: var(--color-gold-light);
}

.cta-btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.cta-btn--outline:hover {
  opacity: 1;
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* ---- Footer ---- */
.footer {
  background: #111a2e;
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 0 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
}

.footer-logo {
  margin-bottom: 12px;
}

.footer-logo span {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.7);
}

.footer-corp {
  font-size: 0.78rem;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-gold);
}

.footer-copyright {
  text-align: center;
  font-size: 0.72rem;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.35);
}

/* ============== Responsive ============== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .treatment-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  /* Header - モバイル: ロゴのみ */
  .header-inner {
    height: 56px;
    justify-content: center;
  }

  .header-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .header-logo img {
    height: 28px;
  }

  /* Hero */
  .hero {
    min-height: 500px;
    max-height: 700px;
  }

  .hero-logo {
    width: 140px;
    margin-bottom: 24px;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .hero-sub {
    font-size: 0.85rem;
  }

  .hero-scroll {
    display: none;
  }

  /* Philosophy */
  .philosophy {
    padding: 60px 0;
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .philosophy-values {
    flex-direction: column;
    gap: 12px;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* Treatment */
  .treatment-grid {
    grid-template-columns: 1fr;
  }

  /* Flow */
  .flow-steps {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .flow-step {
    text-align: left;
    padding: 24px 0 24px 60px;
    border-left: 1px solid rgba(201, 169, 110, 0.2);
  }

  .flow-step::before {
    position: absolute;
    left: 0;
    top: 24px;
    font-size: 1.4rem;
  }

  .flow-step + .flow-step::after {
    display: none;
  }

  /* Group */
  .group-grid {
    grid-template-columns: 1fr;
  }

  .group-card {
    padding: 28px 20px;
  }

  /* SDGs */
  .sdgs-inner {
    flex-direction: column;
    text-align: center;
  }

  .sdgs-image {
    width: 180px;
  }

  /* Access */
  .access-cards {
    grid-template-columns: 1fr;
  }

  /* CTA */
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: 24px;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 16px;
  }

  /* Section titles */
  .section-title {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.35rem;
  }

  .section-title {
    font-size: 1.15rem;
  }

  .inner {
    padding: 0 16px;
  }
}