/* ============================================
   川田クリニック 医療ダイエットLP (diet.urawa-beauty.com)
   v1.0 (2026-05-15)  / Theme: Medical Blue-Gray
============================================ */

:root {
  --color-base: #FFFFFF;
  --color-bg-soft: #F4F7F9;
  --color-bg-deep: #EEF3F6;
  --color-accent: #5A7A8C;
  --color-accent-deep: #3D5A6C;
  --color-cta: #06C755;       /* LINE green */
  --color-cta-hover: #05A847;
  --color-text: #2C2C2C;
  --color-text-soft: #666666;
  --color-border: #E5E9EC;

  --font-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-serif: 'Noto Serif JP', 'Yu Mincho', serif;

  --container-w: 1100px;
  --radius: 12px;
  --shadow: 0 4px 16px rgba(58,90,108,.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-jp);
  color: var(--color-text);
  background: var(--color-base);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 100px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }
.section { padding: 64px 0; }

.section-eyebrow {
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 8px;
}

.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 40px;
  letter-spacing: 0.02em;
}

.sp-only { display: none; }
.pc-only { display: inline; }

@media (max-width: 768px) {
  .sp-only { display: inline; }
  .pc-only { display: none; }
  .section { padding: 48px 0; }
  .section-title { font-size: 22px; margin-bottom: 28px; }
}

/* ============================================
   1. First View
============================================ */
.fv {
  background: linear-gradient(135deg, #F4F7F9 0%, #DCE7EC 100%);
  padding: 80px 20px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.fv-inner { max-width: 720px; margin: 0 auto; position: relative; z-index: 2; }

.fv-eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.85);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
  color: var(--color-accent-deep);
}

.fv-headline {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
  color: var(--color-accent-deep);
}

.fv-headline .accent {
  color: var(--color-cta);
}

.fv-sub {
  font-size: 16px;
  color: var(--color-text-soft);
  margin-bottom: 36px;
  line-height: 1.8;
}

.fv-cta {
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.fv-cta-note {
  font-size: 12px;
  color: var(--color-text-soft);
  margin-top: 10px;
}

.fv-pills {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
}

.fv-pills li {
  background: white;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}

@media (max-width: 768px) {
  .fv { padding: 60px 16px 40px; }
  .fv-headline { font-size: 28px; }
}

/* ============================================
   Buttons
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  min-width: 280px;
}

.btn-line {
  background: var(--color-cta);
  color: white;
  box-shadow: 0 8px 20px rgba(6,199,85,.3);
}

.btn-line:hover {
  background: var(--color-cta-hover);
  transform: translateY(-1px);
}

.btn-large {
  padding: 22px 40px;
  font-size: 17px;
  min-width: 320px;
}

.line-icon { font-size: 20px; }

/* ============================================
   2. Problem
============================================ */
.problem { background: var(--color-bg-soft); }

.problem-list {
  list-style: none;
  max-width: 560px;
  margin: 0 auto 32px;
}

.problem-list li {
  background: white;
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 500;
}

.problem-list .check {
  color: var(--color-accent);
  font-size: 18px;
  font-weight: 900;
}

.problem-transition {
  text-align: center;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.7;
  margin-top: 32px;
}

.problem-transition strong { color: var(--color-accent); }

/* ============================================
   3. About GLP-1
============================================ */
.about-card {
  max-width: 760px;
  margin: 0 auto;
  background: white;
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.about-intro {
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 24px;
}

.about-intro strong { color: var(--color-accent); }

.about-mechanism {
  background: var(--color-bg-deep);
  padding: 20px 24px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.about-mechanism h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent-deep);
  margin-bottom: 12px;
}

.about-mechanism ul {
  list-style: none;
  font-size: 14px;
  line-height: 1.9;
}

.about-note {
  font-size: 12px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .about-card { padding: 24px 20px; }
}

/* ============================================
   4. Features
============================================ */
.solution { background: var(--color-bg-soft); }

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

.feature-card {
  background: white;
  padding: 32px 20px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-accent-deep);
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .features { grid-template-columns: 1fr; gap: 16px; }
}

/* ============================================
   5. Plans
============================================ */
.plan-group-title {
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-accent-deep);
  margin: 24px 0 20px;
  padding: 8px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.plan-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
}

.plan-card {
  flex: 1 1 260px;
  max-width: 320px;
  background: white;
  padding: 28px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.plan-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.plan-card.popular {
  border: 2px solid var(--color-accent);
}

.plan-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: white;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.plan-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
  text-align: center;
  color: var(--color-accent-deep);
}

.plan-tag {
  text-align: center;
  font-size: 11px;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.plan-price {
  font-size: 26px;
  font-weight: 900;
  color: var(--color-accent-deep);
  font-family: var(--font-serif);
  margin-bottom: 16px;
  text-align: center;
  line-height: 1.2;
}

.plan-price small { font-size: 11px; font-weight: 400; color: var(--color-text-soft); }

.plan-features {
  list-style: none;
}

.plan-features li {
  font-size: 13px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
}

.plan-features li:last-child { border-bottom: none; }

.plan-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .plan-card { flex: 1 1 100%; max-width: 100%; }
}

/* ============================================
   6. Flow
============================================ */
.flow { background: var(--color-bg-soft); }

.flow-steps {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.flow-step {
  flex: 1;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  max-width: 260px;
  box-shadow: var(--shadow);
}

.step-num {
  font-size: 32px;
  font-weight: 900;
  color: var(--color-accent);
  font-family: var(--font-serif);
  margin-bottom: 8px;
  line-height: 1;
}

.flow-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-accent-deep);
}

.flow-step p { font-size: 13px; color: var(--color-text-soft); }

.step-time {
  margin-top: 12px;
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 700;
}

.flow-arrow {
  align-self: center;
  font-size: 28px;
  color: var(--color-accent);
}

.flow-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-soft);
  margin-top: 16px;
}

@media (max-width: 768px) {
  .flow-steps {
    flex-direction: column;
    align-items: center;
  }
  .flow-step { width: 100%; max-width: 320px; }
  .flow-arrow { transform: rotate(90deg); align-self: center; }
}

/* ============================================
   7. Disclosure
============================================ */
.disclosure-box {
  max-width: 760px;
  margin: 0 auto;
  background: white;
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.disclosure-box h3 {
  font-size: 15px;
  font-weight: 700;
  margin: 20px 0 8px;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
  color: var(--color-accent-deep);
}

.disclosure-box h3:first-child { margin-top: 0; }

.disclosure-box p,
.disclosure-box ul {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

.disclosure-box ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 8px;
}

.disclosure-box strong { color: var(--color-accent); font-weight: 700; }

@media (max-width: 768px) {
  .disclosure-box { padding: 24px 20px; }
}

/* ============================================
   8. Doctor
============================================ */
.doctor { background: var(--color-bg-soft); }

.doctor-card {
  max-width: 760px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius);
  padding: 36px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  box-shadow: var(--shadow);
  align-items: start;
}

.doctor-photo-placeholder {
  width: 200px;
  height: 200px;
  background: var(--color-bg-deep);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--color-text-soft);
}

.doctor-name {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--color-accent-deep);
}

.doctor-title {
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.doctor-message {
  font-size: 14px;
  line-height: 1.9;
  background: var(--color-bg-deep);
  padding: 16px 20px;
  border-radius: 8px;
  margin-bottom: 16px;
  border-left: 3px solid var(--color-accent);
}

.doctor-spec {
  list-style: disc;
  padding-left: 20px;
  font-size: 13px;
  color: var(--color-text-soft);
}

.doctor-spec li { padding: 2px 0; }

.doctor-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-text-soft);
  margin-top: 16px;
}

@media (max-width: 768px) {
  .doctor-card { grid-template-columns: 1fr; padding: 24px; text-align: center; }
  .doctor-photo-placeholder { margin: 0 auto; }
  .doctor-message { text-align: left; }
  .doctor-spec { text-align: left; }
}

/* ============================================
   9. FAQ
============================================ */
.faq-list { max-width: 760px; margin: 0 auto; }

.faq-list details {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  transition: box-shadow 0.2s;
}

.faq-list details[open] { box-shadow: var(--shadow); }

.faq-list summary {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  position: relative;
  list-style: none;
  padding-right: 48px;
}

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

.faq-list summary::before {
  content: 'Q';
  color: var(--color-accent);
  font-weight: 900;
  margin-right: 12px;
  font-family: var(--font-serif);
}

.faq-list summary::after {
  content: '+';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: var(--color-accent);
  font-weight: 300;
  transition: transform 0.2s;
}

.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }

.faq-list details p {
  padding: 0 24px 20px 48px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.9;
}

/* ============================================
   Final CTA
============================================ */
.final-cta {
  background: linear-gradient(135deg, #5A7A8C 0%, #3D5A6C 100%);
  color: white;
  text-align: center;
  padding: 80px 20px;
}

.final-cta-title {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 16px;
}

.final-cta-sub {
  font-size: 15px;
  margin-bottom: 32px;
  opacity: 0.95;
  line-height: 1.8;
}

.final-cta .btn-line {
  background: var(--color-cta);
  color: white;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}

@media (max-width: 768px) {
  .final-cta-title { font-size: 24px; }
}

/* ============================================
   Footer
============================================ */
.footer {
  background: #2C2C2C;
  color: #CCCCCC;
  padding: 40px 20px 28px;
  text-align: center;
}

.footer-name { font-size: 18px; font-weight: 700; color: white; margin-bottom: 8px; }
.footer-addr { font-size: 13px; margin-bottom: 16px; }
.footer-note {
  font-size: 11px;
  color: #999;
  max-width: 640px;
  margin: 0 auto 24px;
  line-height: 1.8;
}
.footer-copy { font-size: 11px; color: #777; }

/* ============================================
   Floating CTA
============================================ */
.floating-cta {
  position: fixed;
  bottom: 16px;
  right: 16px;
  background: var(--color-cta);
  color: white;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(6,199,85,.4);
  z-index: 100;
  line-height: 1.3;
  transition: transform 0.2s;
}

.floating-cta:hover { transform: translateY(-2px); }

.floating-cta small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  opacity: 0.95;
  margin-top: 2px;
}

@media (max-width: 768px) {
  .floating-cta { left: 16px; right: 16px; bottom: 12px; }
}