/* =========================================================
   Lien Mariage - Funnel LP Style
   Concept: 静けさ / 引き算 / エディトリアル誌面
   Palette: Nightfall Indigo #1E2A3A / Off Linen #F7F2EC /
            Antique Brass #8A6D4E / LINE Green #06C755 /
            Sand Beige #EFE9DF / Ink Black #2C2A26
========================================================= */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  font-weight: 400;
  color: #2C2A26;
  line-height: 1.9;
  background: #F7F2EC;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  opacity: 0.75;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

blockquote {
  quotes: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}

/* 共通: セクションラベル（英字アクセント） */
.section-label {
  display: block;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.3em;
  color: #8A6D4E;
  text-transform: uppercase;
  margin-bottom: 18px;
  text-align: center;
}

/* 共通: セクションタイトル */
.section-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 32px;
  line-height: 1.55;
  letter-spacing: 0.04em;
  color: #1E2A3A;
  text-align: center;
  margin-bottom: 64px;
}

.section-title::after {
  content: "";
  display: block;
  width: 32px;
  height: 1px;
  background: #8A6D4E;
  margin: 28px auto 0;
}

/* セクション共通余白 */
section {
  padding: 120px 0;
  position: relative;
}

/* ---------------------------------------------------------
   2. Header (fixed + blur)
--------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(247, 242, 236, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(30, 42, 58, 0.06);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-family: "Cormorant Garamond", serif;
  font-weight: 400;
  font-size: 24px;
  letter-spacing: 0.08em;
  color: #1E2A3A;
  line-height: 1;
  display: inline-block;
}

.logo-sub {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: #8A6D4E;
  margin-top: 4px;
}

.header-nav {
  display: flex;
  gap: 36px;
  align-items: center;
}

.header-nav a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: #2C2A26;
  position: relative;
}

.header-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: #8A6D4E;
  transition: width 0.3s ease;
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #06C755;
  color: #fff;
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 10px 20px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(6, 199, 85, 0.25);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.header-cta::before {
  content: "L";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  color: #06C755;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 11px;
  line-height: 1;
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(6, 199, 85, 0.38);
  opacity: 1;
}

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 110;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 1.5px;
  background: #1E2A3A;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------------------------------------------------------
   3. CTA Button (共通)
--------------------------------------------------------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #06C755;
  color: #fff;
  font-family: "Montserrat", "Noto Sans JP", sans-serif;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.05em;
  padding: 20px 44px;
  border-radius: 999px;
  box-shadow: 0 8px 28px rgba(6, 199, 85, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  min-width: 300px;
  white-space: nowrap;
}

.btn-primary::before {
  content: "L";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  color: #06C755;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(6, 199, 85, 0.48);
  opacity: 1;
}

.btn-large {
  padding: 24px 56px;
  font-size: 18px;
  min-width: 340px;
}

/* ---------------------------------------------------------
   4. Hero
--------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 140px 24px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    170deg,
    rgba(30, 42, 58, 0.78) 0%,
    rgba(30, 42, 58, 0.58) 50%,
    rgba(138, 109, 78, 0.38) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  width: 100%;
  text-align: center;
  color: #fff;
}

.hero-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.3em;
  color: #D9BE95;
  margin-bottom: 32px;
  display: block;
}

.hero-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 42px;
  line-height: 1.55;
  letter-spacing: 0.04em;
  color: #fff;
  margin-bottom: 20px;
}

.hero-sub {
  font-family: "Noto Serif JP", serif;
  font-weight: 400;
  font-size: 24px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 28px;
  letter-spacing: 0.05em;
}

.hero-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.9;
  margin-bottom: 48px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-badge {
  padding: 14px 22px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(4px);
  min-width: 150px;
}

.hero-badge-label {
  display: block;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.25em;
  color: #D9BE95;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.hero-badge-value {
  display: block;
  font-family: "Montserrat", sans-serif;
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: #fff;
}

.hero-cta-wrap {
  margin-bottom: 24px;
}

.hero-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 16px;
  letter-spacing: 0.05em;
  margin-bottom: 40px;
}

.portfolio-notice {
  display: inline-block;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.72);
  padding: 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 2px;
  letter-spacing: 0.05em;
  margin-top: 12px;
}

/* ---------------------------------------------------------
   5. Empathy Section
--------------------------------------------------------- */
.empathy-section {
  background: #F7F2EC;
  padding-top: 120px;
}

.empathy-section .section-label,
.empathy-section .section-title {
  text-align: left;
}

.empathy-section .section-title::after {
  margin: 28px 0 0;
}

.empathy-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.empathy-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 48px;
}

.empathy-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 18px 24px;
  background: #fff;
  border-left: 2px solid #8A6D4E;
  box-shadow: 0 2px 14px rgba(30, 42, 58, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  font-size: 15px;
  color: #2C2A26;
  line-height: 1.8;
}

.empathy-item:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 18px rgba(30, 42, 58, 0.08);
}

.empathy-item::before {
  content: "✓";
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid #8A6D4E;
  color: #8A6D4E;
  font-family: "Montserrat", sans-serif;
  font-size: 12px;
  font-weight: 700;
}

.empathy-lead {
  font-family: "Noto Serif JP", serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 2.0;
  color: #2C2A26;
  text-align: left;
  padding: 28px 32px;
  border-top: 1px solid rgba(138, 109, 78, 0.3);
  border-bottom: 1px solid rgba(138, 109, 78, 0.3);
  letter-spacing: 0.03em;
}

.empathy-image {
  position: relative;
}

.empathy-image img {
  width: 100%;
  height: 560px;
  object-fit: cover;
  filter: grayscale(15%) brightness(0.96);
}

.empathy-image::before {
  content: "";
  position: absolute;
  top: -16px;
  right: -16px;
  width: 100%;
  height: 100%;
  border: 1px solid #8A6D4E;
  z-index: -1;
}

/* ---------------------------------------------------------
   6. Reasons Section
--------------------------------------------------------- */
.reasons-section {
  background: #FFFFFF;
}

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.reason-card {
  background: #fff;
  position: relative;
  transition: transform 0.4s ease;
}

.reason-card:hover {
  transform: translateY(-4px);
}

.reason-number {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 300;
  font-size: 72px;
  color: #8A6D4E;
  line-height: 1;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
  display: block;
}

.reason-image {
  width: 100%;
  height: 300px;
  object-fit: cover;
  margin-bottom: 28px;
  filter: grayscale(12%) brightness(0.97);
}

.reason-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 22px;
  line-height: 1.6;
  color: #1E2A3A;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.reason-desc {
  font-size: 15px;
  color: #2C2A26;
  line-height: 1.95;
  opacity: 0.88;
}

/* ---------------------------------------------------------
   7. Steps Section
--------------------------------------------------------- */
.steps-section {
  background: #EFE9DF;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 72px;
  position: relative;
}

.step-item {
  background: #fff;
  padding: 40px 28px;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid rgba(138, 109, 78, 0.15);
}

.step-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(30, 42, 58, 0.08);
}

.step-item:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -20px;
  transform: translateY(-50%);
  font-family: "Cormorant Garamond", serif;
  font-size: 24px;
  color: #8A6D4E;
  z-index: 2;
}

.step-number {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 300;
  font-size: 56px;
  color: #8A6D4E;
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
  display: block;
}

.step-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 18px;
  line-height: 1.6;
  color: #1E2A3A;
  margin-bottom: 14px;
}

.step-desc {
  font-size: 14px;
  color: #2C2A26;
  line-height: 1.9;
  opacity: 0.85;
}

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

/* ---------------------------------------------------------
   8. Privacy Section (Dark)
--------------------------------------------------------- */
.privacy-section {
  background: #1E2A3A;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.privacy-section .section-label {
  color: #D9BE95;
}

.privacy-section .section-title {
  color: #fff;
}

.privacy-section .section-title::after {
  background: #8A6D4E;
}

.privacy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.privacy-image {
  position: relative;
}

.privacy-image img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  filter: brightness(0.8) contrast(1.05);
}

.privacy-image::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(138, 109, 78, 0.4);
  transform: translate(16px, 16px);
  z-index: 1;
  pointer-events: none;
}

.privacy-promises {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.privacy-promise {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.privacy-promise:last-child {
  border-bottom: none;
}

.privacy-promise-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 20px;
  line-height: 1.6;
  color: #fff;
  margin-bottom: 10px;
  position: relative;
  padding-left: 28px;
}

.privacy-promise-title::before {
  content: "—";
  position: absolute;
  left: 0;
  color: #8A6D4E;
  font-family: "Cormorant Garamond", serif;
}

.privacy-promise-text {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.9;
  padding-left: 28px;
}

.privacy-lead {
  margin-top: 32px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.9;
  font-style: italic;
  font-family: "Noto Serif JP", serif;
  padding-left: 28px;
  border-left: 1px solid rgba(138, 109, 78, 0.5);
}

/* ---------------------------------------------------------
   9. Couples Section
--------------------------------------------------------- */
.couples-section {
  background: #F7F2EC;
}

.couples-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.couple-card {
  background: #fff;
  overflow: hidden;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  box-shadow: 0 2px 10px rgba(30, 42, 58, 0.04);
}

.couple-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(30, 42, 58, 0.1);
}

.couple-image {
  width: 100%;
  height: 280px;
  object-fit: cover;
  filter: grayscale(10%);
}

.couple-body {
  padding: 32px 28px;
}

.couple-period {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: #8A6D4E;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.couple-meta {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 15px;
  line-height: 1.7;
  color: #1E2A3A;
  margin-bottom: 20px;
}

.couple-quote {
  font-size: 14px;
  color: #2C2A26;
  line-height: 1.95;
  padding-top: 20px;
  border-top: 1px solid rgba(138, 109, 78, 0.2);
  opacity: 0.88;
  font-family: "Noto Serif JP", serif;
}

/* ---------------------------------------------------------
   10. Voices Section
--------------------------------------------------------- */
.voices-section {
  background: #FFFFFF;
}

.voices-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.voice-card {
  background: #fff;
  padding: 48px 36px 36px;
  border: 1px solid rgba(138, 109, 78, 0.2);
  position: relative;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.voice-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(30, 42, 58, 0.08);
}

.voice-card::before {
  content: "\201C";
  position: absolute;
  top: 16px;
  left: 28px;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 72px;
  line-height: 1;
  color: #8A6D4E;
  opacity: 0.85;
}

.voice-text {
  font-size: 14px;
  line-height: 2.0;
  color: #2C2A26;
  margin-bottom: 28px;
  position: relative;
  padding-top: 16px;
}

.voice-attr {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 14px;
  color: #1E2A3A;
  padding-top: 20px;
  border-top: 1px solid rgba(138, 109, 78, 0.25);
  letter-spacing: 0.03em;
}

/* ---------------------------------------------------------
   11. FAQ Section
--------------------------------------------------------- */
.faq-section {
  background: #EFE9DF;
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #fff;
  border: 1px solid rgba(138, 109, 78, 0.18);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.faq-item[open] {
  box-shadow: 0 8px 24px rgba(30, 42, 58, 0.06);
}

.faq-item summary {
  padding: 24px 64px 24px 28px;
  cursor: pointer;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.7;
  color: #1E2A3A;
  position: relative;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: background 0.3s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: "Q";
  flex-shrink: 0;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 28px;
  color: #8A6D4E;
  line-height: 1;
  margin-top: -2px;
}

.faq-item summary::after {
  content: "";
  position: absolute;
  right: 28px;
  top: 50%;
  width: 12px;
  height: 12px;
  border-right: 1.5px solid #8A6D4E;
  border-bottom: 1.5px solid #8A6D4E;
  transform: translateY(-75%) rotate(45deg);
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-25%) rotate(-135deg);
}

.faq-item[open] summary {
  background: rgba(247, 242, 236, 0.5);
}

.faq-answer {
  padding: 20px 28px 28px 76px;
  font-size: 15px;
  line-height: 2.0;
  color: #2C2A26;
  opacity: 0.9;
}

/* ---------------------------------------------------------
   12. Final CTA
--------------------------------------------------------- */
.final-cta {
  position: relative;
  padding: 140px 24px;
  text-align: center;
  overflow: hidden;
  color: #fff;
}

.final-cta-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.final-cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(30, 42, 58, 0.55) 0%,
    rgba(30, 42, 58, 0.78) 100%
  );
  z-index: 1;
}

.final-cta-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
}

.final-cta .section-label {
  color: #D9BE95;
}

.final-cta-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 38px;
  line-height: 1.6;
  color: #fff;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.final-cta-sub {
  font-size: 17px;
  line-height: 2.0;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 48px;
}

.final-cta-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 20px;
  letter-spacing: 0.05em;
}

/* ---------------------------------------------------------
   13. Footer
--------------------------------------------------------- */
.footer {
  background: #1E2A3A;
  color: rgba(255, 255, 255, 0.8);
  padding: 80px 0 36px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.2fr 1.5fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand .logo {
  color: #fff;
  font-size: 28px;
  margin-bottom: 16px;
  display: block;
}

.footer-tagline {
  font-family: "Noto Serif JP", serif;
  font-size: 14px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.7);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-nav a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: #D9BE95;
  opacity: 1;
}

.footer-social {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-social-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.25em;
  color: #8A6D4E;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.footer-social a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.75);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.portfolio-notice-footer {
  display: inline-block;
  font-size: 12px;
  color: #D9BE95;
  padding: 12px 20px;
  border: 1px solid rgba(138, 109, 78, 0.45);
  background: rgba(138, 109, 78, 0.08);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.copyright {
  font-family: "Montserrat", sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
}

/* ---------------------------------------------------------
   14. Mobile Sticky CTA (スマホのみ表示)
--------------------------------------------------------- */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 85%;
  z-index: 90;
  pointer-events: auto;
}

.mobile-sticky-cta .btn-primary {
  width: 100%;
  min-width: 0;
  padding: 16px 24px;
  font-size: 15px;
  box-shadow: 0 10px 30px rgba(6, 199, 85, 0.5);
}

/* ---------------------------------------------------------
   15. Responsive
--------------------------------------------------------- */
@media (max-width: 1024px) {
  .reasons-grid,
  .couples-grid,
  .voices-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }

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

  .step-item:not(:last-child)::after {
    display: none;
  }

  .empathy-grid,
  .privacy-grid {
    gap: 56px;
  }

  section {
    padding: 80px 0;
  }

  .hero-title {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 24px;
    margin-bottom: 40px;
  }

  .section-label {
    font-size: 12px;
    letter-spacing: 0.25em;
    margin-bottom: 14px;
  }

  /* Header */
  .header-inner {
    padding: 14px 20px;
  }

  .logo {
    font-size: 20px;
  }

  .logo-sub {
    display: none;
  }

  .header-cta {
    padding: 8px 14px;
    font-size: 11px;
  }

  .header-cta::before {
    width: 16px;
    height: 16px;
    font-size: 10px;
  }

  .hamburger {
    display: flex;
  }

  /* モバイルメニュー: opacity + visibility + transformで制御 */
  .header-nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(247, 242, 236, 0.98);
    backdrop-filter: blur(14px);
    flex-direction: column;
    gap: 0;
    padding: 24px 28px;
    border-bottom: 1px solid rgba(30, 42, 58, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    pointer-events: none;
  }

  .header-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .header-nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(30, 42, 58, 0.06);
    font-size: 14px;
  }

  .header-nav a:last-child {
    border-bottom: none;
  }

  .header-nav a::after {
    display: none;
  }

  /* Hero */
  .hero {
    min-height: 100svh;
    padding: 120px 20px 80px;
  }

  .hero-title {
    font-size: 28px;
    line-height: 1.55;
  }

  .hero-sub {
    font-size: 18px;
  }

  .hero-desc {
    font-size: 14px;
  }

  .hero-label {
    font-size: 11px;
    letter-spacing: 0.25em;
  }

  .hero-badges {
    gap: 10px;
    margin-bottom: 36px;
  }

  .hero-badge {
    min-width: 0;
    padding: 10px 12px;
    flex: 1 1 30%;
  }

  .hero-badge-label {
    font-size: 9px;
  }

  .hero-badge-value {
    font-size: 13px;
  }

  .btn-primary {
    padding: 16px 28px;
    font-size: 15px;
    min-width: 0;
    width: 100%;
    max-width: 360px;
  }

  .btn-large {
    padding: 18px 28px;
    font-size: 15px;
    min-width: 0;
  }

  /* Empathy */
  .empathy-section .section-label,
  .empathy-section .section-title {
    text-align: center;
  }

  .empathy-section .section-title::after {
    margin: 28px auto 0;
  }

  .empathy-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .empathy-image img {
    height: 320px;
  }

  .empathy-image::before {
    top: -10px;
    right: -10px;
  }

  .empathy-item {
    padding: 14px 18px;
    font-size: 14px;
  }

  .empathy-lead {
    font-size: 15px;
    padding: 24px 20px;
  }

  /* Reasons */
  .reasons-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .reason-number {
    font-size: 56px;
  }

  .reason-image {
    height: 240px;
  }

  .reason-title {
    font-size: 19px;
  }

  /* Steps */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 48px;
  }

  .step-item {
    padding: 28px 22px;
  }

  .step-item:not(:last-child)::after {
    display: block;
    content: "↓";
    top: auto;
    bottom: -22px;
    right: 50%;
    left: auto;
    transform: translateX(50%);
  }

  .step-number {
    font-size: 44px;
  }

  /* Privacy */
  .privacy-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .privacy-image img {
    height: 320px;
  }

  .privacy-promise-title {
    font-size: 17px;
  }

  /* Couples & Voices */
  .couples-grid,
  .voices-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .couple-image {
    height: 240px;
  }

  .voice-card {
    padding: 40px 28px 28px;
  }

  /* FAQ */
  .faq-item summary {
    padding: 20px 50px 20px 20px;
    font-size: 15px;
    gap: 14px;
  }

  .faq-item summary::before {
    font-size: 24px;
  }

  .faq-item summary::after {
    right: 20px;
    width: 10px;
    height: 10px;
  }

  .faq-answer {
    padding: 16px 20px 24px 52px;
    font-size: 14px;
  }

  /* Final CTA */
  .final-cta {
    padding: 80px 20px;
  }

  .final-cta-title {
    font-size: 24px;
  }

  .final-cta-sub {
    font-size: 15px;
    margin-bottom: 36px;
  }

  /* Footer */
  .footer {
    padding: 60px 0 100px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-bottom: 36px;
  }

  .footer-brand .logo {
    font-size: 24px;
  }

  .portfolio-notice-footer {
    font-size: 11px;
    padding: 10px 16px;
  }

  /* Mobile Sticky CTA */
  .mobile-sticky-cta {
    display: block;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 26px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .hero-badges {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-badge {
    width: 100%;
  }

  .section-title {
    font-size: 22px;
  }

  .final-cta-title {
    font-size: 22px;
  }
}

/* ---------------------------------------------------------
   16. Motion / Accessibility
--------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

::selection {
  background: rgba(138, 109, 78, 0.25);
  color: #1E2A3A;
}