:root {
  --bg-color: #fdf6f0;
  --primary-color: #e8a4b8;
  --primary-dark: #c97a96;
  --primary-light: #f9edf3;
  --text-main: #4a2e37;
  --text-sub: #8d6b77;
  --accent: #d4a373;
  --white: #ffffff;
  --glass: rgba(255, 255, 255, 0.78);
  --border-glass: rgba(232, 164, 184, 0.25);
  
  --font-serif: 'Shippori Mincho', 'Noto Serif JP', serif;
  --max-width: 390px;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-serif);
  line-height: 1.8;
  font-feature-settings: "palt";
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  background-color: var(--white);
  min-height: 100vh;
  position: relative;
  box-shadow: 0 0 40px rgba(90, 58, 69, 0.05);
}

/* Typography Utilities */
h1, h2, h3 {
  font-weight: 400;
  line-height: 1.5;
}

.tracking-widest { letter-spacing: 0.3em; }
.tracking-wider { letter-spacing: 0.15em; }

.drop-cap::first-letter {
  font-size: 3.5em;
  float: left;
  line-height: 1;
  padding-right: 0.1em;
  color: var(--primary-color);
  font-family: serif;
}

.highlight {
  background: linear-gradient(transparent 70%, var(--primary-light) 70%);
  font-weight: 400;
}

/* Sections */
section {
  padding: 100px 24px;
  position: relative;
  overflow: hidden;
}

/* Components */
.img-wrap {
  position: relative;
  margin-bottom: 40px;
}

.img-wrap::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -10px;
  bottom: -10px;
  border: 1px solid var(--primary-color);
  z-index: -1;
}

.img-container {
  width: 100%;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  background-color: var(--primary-light); /* Loading placeholder */
  min-height: 200px;
}

.img-container img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* First View */
.fv {
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(rgba(253, 246, 240, 0.4), rgba(253, 246, 240, 0.4)), url('../images/1bannme.png');
  background-size: cover;
  background-position: center;
}

.fv-content {
  padding: 40px 24px;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  width: 85%;
}

.fv-main-copy {
  font-size: 20px;
  margin-bottom: 24px;
  color: var(--text-main);
}

.fv-sub-copy {
  font-size: 15px;
  color: var(--text-sub);
}

.fv-note {
  margin-top: 32px;
  font-size: 11px;
  color: var(--primary-dark);
}

/* Content Sections */
.section-title {
  font-size: 24px;
  margin-bottom: 48px;
  text-align: left;
  color: var(--text-main);
  position: relative;
  padding-left: 20px;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(var(--primary-color), var(--primary-dark));
}

.text-block {
  font-size: 15px;
  margin-bottom: 32px;
  color: var(--text-main);
}

.text-block p {
  margin-bottom: 2em;
}

/* Visual Layouts */
.split-layout {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.overlap-text {
  margin-top: -60px;
  position: relative;
  z-index: 10;
  padding: 40px 24px;
  background: var(--white);
  box-shadow: 0 15px 40px rgba(0,0,0,0.05);
}

/* Card Style */
.comparison-card {
  background: var(--white);
  padding: 40px 24px;
  border-radius: 2px;
  border: 1px solid #f0f0f0;
  margin-bottom: 32px;
  position: relative;
}

.comparison-card::after {
  content: attr(data-label);
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--primary-dark);
  color: var(--white);
  font-size: 10px;
  padding: 4px 12px;
  letter-spacing: 0.1em;
}

.comparison-card.negative::after {
  background: var(--text-sub);
}

.insight-box {
  background-color: var(--primary-light);
  padding: 80px 24px;
  text-align: center;
  margin: 100px 0;
  position: relative;
  background-image: 
    radial-gradient(var(--primary-color) 0.5px, transparent 0.5px);
  background-size: 10px 10px;
}

.insight-box::before {
  content: 'The Essence';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-family: serif;
  font-style: italic;
  font-size: 28px;
  color: var(--primary-dark);
  opacity: 0.15;
  letter-spacing: 0.1em;
}

.insight-box h2 {
  background: var(--white);
  display: inline-block;
  padding: 10px 20px;
  margin-bottom: 40px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

/* CTA */
.cta-area {
  padding: 120px 24px;
  text-align: center;
  background-color: var(--white);
  border-top: 1px solid #f5f5f5;
}

.cta-button {
  display: block;
  background-color: var(--primary-dark);
  color: var(--white);
  padding: 24px 20px;
  text-decoration: none;
  border-radius: 4px;
  font-size: 17px;
  letter-spacing: 0.1em;
  margin-top: 40px;
  box-shadow: 0 15px 40px rgba(201, 122, 150, 0.2);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.cta-button::after {
  content: '>';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-family: sans-serif;
  opacity: 0.7;
}

.cta-button:active {
  transform: translateY(2px);
  box-shadow: 0 5px 20px rgba(201, 122, 150, 0.2);
}

.cta-micro {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-sub);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease, transform 1s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Decoration */
.vertical-text {
  writing-mode: vertical-rl;
  position: absolute;
  right: 10px;
  top: 100px;
  font-size: 10px;
  color: var(--primary-color);
  opacity: 0.5;
  letter-spacing: 0.5em;
}