:root {
  color-scheme: light;
  --blue: #0b56a5;
  --blue-dark: #073f86;
  --blue-soft: #eef7ff;
  --orange: #ff9f1c;
  --orange-dark: #ee8700;
  --ink: #222222;
  --muted: #606b75;
  --line: #dfe6ee;
  --paper: #ffffff;
  --paper-soft: #f7fbff;
  --navy: #111827;
  --radius: 0;
  --shadow: 0 14px 34px rgb(7 63 134 / 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo",
    system-ui, sans-serif;
  line-height: 1.8;
  letter-spacing: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.top-strip {
  padding: 4px 16px;
  color: #818b98;
  background: #f4f6fb;
  text-align: center;
  font-size: 12px;
  line-height: 1.5;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgb(255 255 255 / 0.96);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: grid;
  grid-template-columns: minmax(520px, 1fr) auto;
  align-items: center;
  gap: 28px;
  width: min(1000px, calc(100% - 40px));
  min-height: 116px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.brand strong {
  color: #1f1f1f;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: clamp(28px, 2.7vw, 36px);
  font-weight: 800;
  line-height: 1.05;
  white-space: nowrap;
}

.brand span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 2px 24px;
  color: #1428b8;
  border: 2px solid #1d29c8;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.2;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 18px;
}

.tel-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #2a2a2a;
  white-space: nowrap;
}

.tel-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #ffffff;
  background: var(--blue);
  font-size: 12px;
  font-weight: 900;
}

.tel-link strong {
  font-size: clamp(28px, 2.8vw, 40px);
  font-weight: 900;
  letter-spacing: 0;
}

.reserve-link,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border: 0;
  font-weight: 800;
  white-space: nowrap;
  transition:
    transform 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

.reserve-link {
  color: #ffffff;
  background: var(--orange);
  font-size: 24px;
}

.reserve-link::before {
  content: "";
  width: 22px;
  height: 16px;
  margin-right: 10px;
  background: #ffffff;
  clip-path: polygon(0 0, 100% 0, 50% 52%, 0 0, 0 100%, 100% 100%, 100% 0, 50% 52%, 0 100%);
}

.global-nav {
  display: flex;
  justify-content: center;
  gap: clamp(22px, 3.5vw, 48px);
  min-height: 74px;
  align-items: center;
  border-top: 1px solid #edf1f6;
  color: #222222;
  font-weight: 700;
}

.global-nav a {
  font-size: 16px;
  line-height: 1;
}

.global-nav a:hover,
.global-nav a:focus-visible {
  color: var(--blue);
}

.section-wide {
  width: min(1000px, calc(100% - 40px));
  margin: 0 auto;
}

.section-narrow {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
}

main section[id] {
  scroll-margin-top: 210px;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 500px;
  background:
    radial-gradient(circle at 84% 10%, rgb(255 159 28 / 0.14), transparent 28%),
    radial-gradient(circle at 8% 12%, rgb(11 86 165 / 0.16), transparent 32%),
    linear-gradient(135deg, #f8fcff 0%, #eaf6ff 48%, #ffffff 100%);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.hero::before {
  top: 58px;
  right: max(20px, calc((100vw - 1000px) / 2));
  width: min(32vw, 420px);
  height: min(32vw, 420px);
  border: 26px solid rgb(11 86 165 / 0.08);
  border-radius: 999px;
}

.hero::after {
  right: 0;
  bottom: 0;
  width: min(46vw, 680px);
  height: 130px;
  background:
    linear-gradient(135deg, transparent 0 32%, rgb(11 86 165 / 0.12) 32% 52%, transparent 52%),
    linear-gradient(135deg, transparent 0 42%, rgb(255 159 28 / 0.18) 42% 58%, transparent 58%);
  opacity: 0.9;
}

.hero-panel {
  position: relative;
  z-index: 2;
  width: min(720px, calc(100% - 40px));
  margin: 0 auto;
  padding-top: 96px;
}

.hero h1 {
  width: min(660px, 100%);
  margin: 0 auto;
  padding: 38px 44px;
  color: #ffffff;
  background: linear-gradient(135deg, rgb(4 42 92 / 0.94), rgb(8 79 152 / 0.9));
  font-size: clamp(36px, 4.6vw, 58px);
  font-weight: 900;
  line-height: 1.38;
  text-align: center;
  text-shadow: 0 3px 10px rgb(0 0 0 / 0.28);
  box-shadow: 0 18px 36px rgb(7 63 134 / 0.2);
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.hero-sub {
  width: min(660px, 100%);
  margin: 0 auto;
  padding: 0 44px 36px;
  color: #ffffff;
  background: linear-gradient(135deg, rgb(4 42 92 / 0.94), rgb(8 79 152 / 0.9));
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 900;
  line-height: 1.6;
  text-align: center;
  text-shadow: 0 2px 8px rgb(0 0 0 / 0.24);
}

.hero-sub strong {
  color: #ffe16a;
  font-size: 1.16em;
  font-weight: 900;
  text-shadow:
    0 2px 8px rgb(0 0 0 / 0.28),
    0 0 14px rgb(255 225 106 / 0.24);
}

.hero-sub-accent {
  color: var(--orange);
  font-size: 1.16em;
  font-weight: 900;
  text-shadow:
    0 2px 8px rgb(0 0 0 / 0.28),
    0 0 14px rgb(255 159 28 / 0.24);
}

.hero-doctor-message {
  width: min(720px, 100%);
  margin: 24px auto 0;
  color: #172033;
  background: transparent;
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 900;
  line-height: 1.55;
  text-align: center;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  width: min(660px, 100%);
  margin: 0 auto;
  padding: 24px 0 0;
  justify-content: center;
}

.hero-note {
  position: relative;
  z-index: 2;
  width: min(1000px, calc(100% - 40px));
  margin: 28px auto 0;
  padding: 12px 16px;
  color: #404b57;
  background: rgb(255 255 255 / 0.9);
  text-align: center;
  font-weight: 700;
}

.button-orange {
  color: #ffffff;
  background: linear-gradient(#ffc95a, var(--orange));
  border: 3px solid #f6c36d;
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.55),
    0 8px 0 #c97900,
    0 14px 24px rgb(201 121 0 / 0.26);
}

.button-orange:hover,
.button-orange:focus-visible,
.reserve-link:hover,
.reserve-link:focus-visible {
  background: var(--orange-dark);
}

.button-blue {
  color: #ffffff;
  background: var(--blue);
  box-shadow: 0 8px 0 #053675;
}

.button-outline {
  color: var(--blue-dark);
  background: #ffffff;
  border: 2px solid var(--blue);
}

.button:active,
.reserve-link:active {
  transform: translateY(2px);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin: 0 0 38px;
  color: #222222;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
}

.section-title::before,
.section-title::after {
  content: "";
  width: 80px;
  height: 4px;
  background: var(--blue);
}

.price-section {
  padding: 72px 0 64px;
  text-align: center;
}

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

.price-card {
  display: grid;
  grid-template-columns: 210px 1fr;
  min-height: 92px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.price-label {
  display: grid;
  place-items: center;
  padding: 16px;
  color: #ffffff;
  background: var(--blue);
  font-weight: 900;
}

.price-body {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px;
}

.price-body strong {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.15;
}

.price-body span {
  font-weight: 800;
}

.price-note {
  margin: 18px 0 0;
  color: #333333;
  font-size: 13px;
}

.cta-banner {
  padding: 52px 0 72px;
  text-align: center;
}

.big-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(680px, 100%);
  min-height: 116px;
  padding: 20px 42px;
  color: #ffffff;
  border: 4px solid #efc063;
  background: linear-gradient(#ffd36d, #ff9d18);
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.6),
    0 4px 0 #c97900,
    0 10px 16px rgb(0 0 0 / 0.2);
  font-size: clamp(28px, 4.2vw, 46px);
  font-weight: 900;
}

.big-cta::after {
  content: "▶";
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-left: 22px;
  border-radius: 999px;
  color: var(--orange);
  background: #ffffff;
  font-size: 16px;
}

.cta-banner p {
  max-width: 720px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 14px;
}

.worry-section,
.about-section,
.doctor-section,
.flow-section,
.patient-section,
.faq-section,
.legal-section {
  padding: 82px 0;
}

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

.worry-head h2,
.about-copy h2,
.doctor-head h2,
.notice-section h2,
.patient-box h2,
.appointment-inner h2,
.risk-copy h2 {
  margin: 0 0 18px;
  font-size: clamp(30px, 4.2vw, 48px);
  font-weight: 900;
  line-height: 1.35;
}

.worry-head p,
.doctor-head p,
.risk-copy p,
.appointment-inner p {
  margin: 0 auto 36px;
  color: var(--muted);
  font-size: 17px;
}

.worry-layout {
  display: grid;
  grid-template-columns: 0.92fr 1fr;
  align-items: center;
  gap: 42px;
}

.symptom-card {
  margin: 42px 0 34px;
  padding: 30px;
  border: 1px solid #dce7f5;
  background: #ffffff;
  box-shadow: 0 14px 30px rgb(7 63 134 / 0.1);
}

.periodontal-education {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: 34px;
}

.worry-layout.symptom-card {
  margin-top: 0;
}

.education-number {
  display: inline-grid;
  place-items: center;
  min-width: 38px;
  min-height: 38px;
  margin-bottom: 12px;
  padding: 4px 10px;
  color: #ffffff;
  background: var(--blue);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
}

.education-copy h3,
.symptom-check h3,
.prevention-box h3 {
  margin: 0 0 14px;
  color: var(--blue-dark);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.45;
}

.education-copy p {
  margin: 0 0 16px;
  color: #333333;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.85;
}

.education-copy ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.education-copy li {
  position: relative;
  padding-left: 20px;
  color: #4a5562;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.75;
}

.education-copy li::before {
  content: "";
  position: absolute;
  top: 0.82em;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--orange);
}

.education-image {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #ffffff;
}

.education-image img {
  aspect-ratio: 16 / 11;
  object-fit: cover;
  object-position: center;
}

.symptom-check {
  display: grid;
  gap: 12px;
}

.worry-image {
  overflow: hidden;
  border: 1px solid var(--line);
  background: #091019;
}

.worry-image img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 48% 36%;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  min-height: 58px;
  padding: 13px 18px 13px 58px;
  border: 2px solid #dce7f5;
  background: #ffffff;
  color: #232323;
  font-size: 18px;
  font-weight: 800;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  color: #ffffff;
  background: var(--blue);
  font-weight: 900;
}

.prevention-box {
  margin-top: 0;
}

.prevention-image {
  margin: 2px 0 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #ffffff;
}

.prevention-image img {
  aspect-ratio: 19 / 6;
  object-fit: contain;
}

.prevention-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.prevention-grid p {
  margin: 0;
  min-height: 112px;
  padding: 18px;
  background: var(--paper-soft);
  color: #47515d;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.75;
}

.prevention-grid strong {
  display: block;
  margin-bottom: 8px;
  color: var(--blue-dark);
  font-size: 19px;
  font-weight: 900;
}

.risk-section {
  color: #ffffff;
  background: linear-gradient(135deg, #061e44, #0b56a5);
}

.risk-inner {
  display: grid;
  grid-template-columns: 0.95fr 1fr;
  align-items: center;
  gap: 42px;
  padding: 82px 0;
}

.risk-copy p {
  color: rgb(255 255 255 / 0.82);
}

.risk-side {
  display: grid;
  gap: 16px;
}

.risk-visual {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgb(255 255 255 / 0.34);
  background: #ffffff;
  box-shadow: 0 18px 42px rgb(0 0 0 / 0.18);
}

.risk-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.risk-symptom-words {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.risk-word {
  position: absolute;
  color: #171717;
  font-family:
    "Hiragino Maru Gothic ProN", "Hiragino Kaku Gothic ProN", "Yu Gothic",
    "Meiryo", sans-serif;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.06;
  white-space: nowrap;
  text-shadow:
    2px 2px 0 rgb(255 255 255 / 0.96),
    -2px 2px 0 rgb(255 255 255 / 0.96),
    2px -2px 0 rgb(255 255 255 / 0.96),
    -2px -2px 0 rgb(255 255 255 / 0.96),
    0 5px 14px rgb(7 63 134 / 0.14);
}

.risk-word-main {
  top: 7%;
  right: 34%;
  color: #6b2f91;
  font-size: clamp(28px, 3.2vw, 46px);
  writing-mode: vertical-rl;
}

.risk-word-shake {
  top: 9%;
  left: 31%;
  font-size: clamp(20px, 2.1vw, 30px);
  writing-mode: vertical-rl;
  transform: rotate(-8deg);
}

.risk-word-bleed {
  top: 31%;
  left: 27%;
  font-size: clamp(20px, 2vw, 28px);
  writing-mode: vertical-rl;
  transform: rotate(-4deg);
}

.risk-word-pus {
  top: 37%;
  left: 42%;
  font-size: clamp(18px, 1.8vw, 25px);
  transform: rotate(10deg);
}

.risk-word-breath {
  right: 16%;
  bottom: 31%;
  font-size: clamp(20px, 2.2vw, 30px);
  transform: rotate(-4deg);
}

.risk-word-pain {
  top: 12%;
  right: 7%;
  font-size: clamp(20px, 2.2vw, 31px);
  writing-mode: vertical-rl;
}

.risk-word-chew {
  top: 16%;
  right: 14%;
  font-size: clamp(18px, 1.9vw, 26px);
  writing-mode: vertical-rl;
}

.risk-word-gum {
  right: 4%;
  bottom: 18%;
  font-size: clamp(18px, 2vw, 27px);
  transform: rotate(5deg);
}

.risk-grid {
  display: grid;
  gap: 16px;
}

.risk-item {
  display: block;
  min-height: 86px;
  border: 1px solid rgb(255 255 255 / 0.3);
  background: rgb(255 255 255 / 0.12);
}

.risk-item__content {
  display: grid;
  gap: 14px;
}

.risk-item strong {
  padding: 18px 22px;
  font-size: 19px;
  line-height: 1.5;
}

.risk-item__content strong {
  padding-bottom: 0;
}

.systemic-section {
  padding: 72px 0 80px;
  background:
    radial-gradient(circle at 8% 12%, rgb(36 102 189 / 0.09), transparent 28%),
    linear-gradient(180deg, #f7fbff, #eef5fc);
}

.systemic-inner {
  display: grid;
  gap: 26px;
}

.systemic-heading {
  display: block;
}

.systemic-heading h2 {
  margin: 0 0 10px;
  color: #11284d;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
}

.systemic-heading p {
  margin: 0;
  color: #4f6279;
}

.systemic-figure {
  padding: 24px;
  border: 1px solid rgb(17 40 77 / 0.1);
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 22px 48px rgb(8 29 63 / 0.08);
}

.systemic-figure img {
  display: block;
  width: min(100%, 920px);
  margin: 0 auto;
  border-radius: 18px;
}

.about-section {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 88px max(20px, calc((100vw - 1180px) / 2));
  color: #ffffff;
  background:
    radial-gradient(circle at 82% 4%, rgb(87 84 238 / 0.52), transparent 36%),
    radial-gradient(circle at 8% 84%, rgb(0 129 222 / 0.28), transparent 32%),
    linear-gradient(135deg, #151944, #121647 52%, #11143a);
  overflow: hidden;
}

.comparison-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.comparison-heading {
  max-width: 920px;
  margin: 0 auto 38px;
  text-align: center;
}

.comparison-heading h2 {
  margin: 0 0 18px;
  color: #ffffff;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 900;
  line-height: 1.35;
}

.comparison-heading p {
  margin: 0 auto;
  color: rgb(255 255 255 / 0.86);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.9;
}

.comparison-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 58px minmax(0, 1.1fr);
  align-items: center;
  gap: 26px;
}

.comparison-card {
  min-height: 612px;
}

.comparison-card h3 {
  margin: 0 0 22px;
  color: #ffffff;
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 900;
  line-height: 1.35;
}

.comparison-card strong {
  display: block;
  margin: 28px 0 12px;
  color: #ffffff;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 900;
  line-height: 1.45;
}

.comparison-card p {
  margin: 0;
  color: rgb(255 255 255 / 0.9);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.95;
}

.comparison-card-muted {
  opacity: 1;
}

.compare-brand {
  margin: 0 0 12px;
  color: #ffffff;
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
}

.comparison-arrow {
  display: grid;
  place-items: center;
  width: 58px;
  height: 76px;
  color: #ffffff;
  font-size: 58px;
  line-height: 1;
  filter: drop-shadow(0 10px 18px rgb(0 0 0 / 0.2));
}

.method-visual {
  position: relative;
  display: flex;
  min-height: 300px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 0.22);
  background: #ffffff;
  box-shadow: 0 18px 36px rgb(0 0 0 / 0.28);
}

.method-visual-conventional {
  background: #a9aab4;
}

.method-visual-blue {
  min-height: 300px;
  background: #ffffff;
}

.method-visual img,
.method-visual-blue img {
  width: 100%;
  display: block;
  height: auto;
  object-fit: contain;
}

.comparison-note {
  margin: 34px 0 0;
  padding: 20px 24px;
  border: 1px solid rgb(255 255 255 / 0.24);
  background: rgb(255 255 255 / 0.1);
  color: rgb(255 255 255 / 0.9);
  text-align: center;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.9;
}

.doctor-section {
  background: var(--paper-soft);
}

.doctor-head {
  max-width: 890px;
  margin: 0 auto 38px;
  text-align: center;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.feature-card {
  min-height: 178px;
  padding: 28px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.feature-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--blue-dark);
  font-size: 22px;
  font-weight: 900;
  line-height: 1.4;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
}

.notice-section {
  margin-top: 30px;
  margin-bottom: 30px;
  padding: 42px;
  border: 4px solid var(--blue);
  background: #ffffff;
  text-align: center;
}

.notice-section p {
  margin: 0;
  color: #333333;
  font-size: 17px;
  font-weight: 700;
}

.flow-list {
  display: grid;
  grid-template-columns: minmax(0, 820px);
  justify-content: center;
  gap: 14px;
  counter-reset: flow;
}

.flow-step {
  position: relative;
  counter-increment: flow;
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
  min-height: 0;
  padding: 22px 72px 22px 22px;
  border: 1px solid var(--line);
  background: #ffffff;
  box-shadow: 0 10px 24px rgb(7 63 134 / 0.08);
}

.flow-step::before {
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  top: 20px;
  right: 22px;
  color: #9ab0c8;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
}

.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 90px;
  bottom: -15px;
  left: 52px;
  width: 2px;
  background: #cde9f6;
}

.flow-icon {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  border: 2px solid #9ad9f2;
  color: var(--blue);
  background: linear-gradient(180deg, #ffffff, #eef9ff);
  box-shadow: inset 0 0 0 5px rgb(11 86 165 / 0.06);
}

.flow-picto {
  width: 38px;
  height: 38px;
  fill: none;
  stroke: currentColor;
  stroke-width: 3.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.flow-step strong {
  display: block;
  color: var(--blue-dark);
  font-size: 19px;
  line-height: 1.45;
}

.flow-step p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.7;
}

.flow-note {
  margin: 28px 0 0;
  padding: 18px 24px;
  color: #3d4852;
  background: var(--blue-soft);
  text-align: center;
  font-weight: 800;
}

.patient-section {
  color: #ffffff;
  background:
    linear-gradient(rgb(8 34 74 / 0.9), rgb(8 34 74 / 0.9)),
    url("../public/assets/brand-source.png") center / cover;
}

.patient-box {
  max-width: 860px;
  margin: 0 auto;
  padding: clamp(32px, 5vw, 54px);
  border: 2px solid rgb(255 255 255 / 0.42);
  background: rgb(3 26 61 / 0.76);
}

.patient-box ul {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.patient-box li {
  padding-left: 18px;
  border-left: 5px solid var(--orange);
  font-weight: 800;
}

.faq-section {
  background: #ffffff;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  background: #ffffff;
}

summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 68px;
  padding: 18px 22px;
  cursor: pointer;
  color: #222222;
  font-size: 18px;
  font-weight: 900;
}

summary span,
details p span {
  color: var(--blue);
  font-size: 24px;
  font-weight: 900;
}

details p {
  display: flex;
  gap: 12px;
  margin: 0;
  padding: 0 22px 22px;
  color: var(--muted);
  font-weight: 700;
}

.appointment-section {
  padding: 86px 20px;
  background: linear-gradient(135deg, #e7f4ff, #ffffff 58%, #fff2d8);
}

.appointment-inner {
  width: min(900px, 100%);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 58px);
  border: 4px solid var(--blue);
  background: #ffffff;
  text-align: center;
  box-shadow: var(--shadow);
}

.appointment-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin: 28px 0;
}

.appointment-inner address {
  color: #3b4652;
  font-style: normal;
  font-weight: 700;
}

.access-layout {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.map-frame {
  width: 100%;
  min-height: 320px;
  border: 1px solid var(--line);
  background: #eef3f8;
  box-shadow: 0 10px 24px rgb(7 63 134 / 0.1);
}

.map-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--blue);
  border-radius: 999px;
  color: var(--blue);
  background: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.map-link:hover,
.map-link:focus-visible {
  color: #ffffff;
  background: var(--blue);
}

.legal-section {
  background: #ffffff;
}

.legal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.legal-grid p {
  margin: 0;
  min-height: 128px;
  padding: 20px;
  border: 1px solid var(--line);
  background: #f9fbfe;
  color: #4a5562;
  font-size: 14px;
}

.site-footer {
  padding: 44px max(20px, calc((100vw - 1000px) / 2)) 30px;
  color: rgb(255 255 255 / 0.78);
  background: #081d3f;
  font-size: 13px;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(240px, 1.1fr) minmax(220px, 0.9fr) minmax(240px, 1fr);
  gap: 34px;
  align-items: start;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  color: #ffffff;
  font-size: 19px;
  line-height: 1.5;
}

.footer-brand span {
  margin-top: 4px;
  color: rgb(255 255 255 / 0.9);
  font-weight: 800;
}

.site-footer p {
  margin: 0;
}

.footer-brand p,
.footer-action p {
  margin-top: 12px;
}

.footer-nav {
  display: grid;
  gap: 8px;
}

.footer-nav a {
  width: fit-content;
  color: rgb(255 255 255 / 0.88);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: rgb(255 255 255 / 0.26);
  text-underline-offset: 5px;
}

.footer-nav a:hover {
  color: #ffffff;
  text-decoration-color: var(--orange);
}

.footer-reserve {
  display: inline-grid;
  place-items: center;
  min-width: 136px;
  min-height: 48px;
  padding: 12px 22px;
  color: #ffffff;
  background: var(--orange);
  font-size: 16px;
  font-weight: 900;
  box-shadow: 0 10px 20px rgb(0 0 0 / 0.2);
}

.footer-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgb(255 255 255 / 0.16);
  color: rgb(255 255 255 / 0.62);
}

.fixed-actions {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  display: flex;
  gap: 8px;
}

.fixed-actions a {
  display: grid;
  place-items: center;
  min-width: 86px;
  min-height: 54px;
  color: #ffffff;
  font-weight: 900;
  box-shadow: 0 8px 18px rgb(0 0 0 / 0.18);
}

.fixed-reserve {
  background: var(--orange);
}

.fixed-flow {
  background: var(--blue);
}

.page-top {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 40;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 3px solid #000000;
  border-radius: 999px;
  color: #000000;
  background: #ffffff;
  cursor: pointer;
  font-size: 22px;
  font-weight: 900;
  box-shadow: 0 6px 14px rgb(0 0 0 / 0.14);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 560ms ease,
    transform 560ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .button,
  .reserve-link {
    transition: none;
  }
}

@media (max-width: 1060px) {
  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 96px;
  }

  .header-contact {
    gap: 10px;
  }

  .brand span {
    font-size: 15px;
  }

  .global-nav {
    gap: 18px;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 0 20px;
  }

  .global-nav a {
    flex: 0 0 auto;
  }

  .price-cards,
  .worry-layout,
  .risk-inner,
  .feature-grid,
  .legal-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 520px;
  }

  .periodontal-education,
  .prevention-grid {
    grid-template-columns: 1fr;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .comparison-card {
    min-height: 0;
  }

  .comparison-arrow {
    width: 100%;
    height: 44px;
    transform: rotate(90deg);
  }

  .footer-main,
  .footer-bottom {
    grid-template-columns: 1fr;
  }

  .footer-main {
    gap: 24px;
  }
}

@media (max-width: 760px) {
  .top-strip {
    font-size: 11px;
  }

  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    width: min(100% - 24px, 680px);
    min-height: 76px;
  }

  .brand strong {
    font-size: 21px;
    white-space: normal;
  }

  .brand span {
    min-height: 24px;
    padding: 1px 10px;
    font-size: 13px;
  }

  .tel-link {
    display: none;
  }

  .reserve-link {
    min-height: 42px;
    padding: 0 14px;
    font-size: 16px;
  }

  .global-nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-bottom: 42px;
  }

  .hero-panel {
    width: min(100% - 24px, 560px);
    margin: 0 auto;
    padding-top: 54px;
  }

  .hero h1 {
    padding: 24px 14px;
    font-size: clamp(30px, 8.7vw, 38px);
    line-height: 1.35;
  }

  .hero h1 span {
    white-space: normal;
  }

  .hero-sub {
    padding: 0 16px 28px;
    font-size: clamp(20px, 5.4vw, 22px);
    line-height: 1.55;
  }

  .hero-doctor-message {
    margin-top: 22px;
    font-size: clamp(20px, 5.4vw, 22px);
    line-height: 1.55;
  }

  .hero-actions {
    justify-content: stretch;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-note {
    width: min(100% - 24px, 560px);
    margin-top: 20px;
    font-size: 13px;
  }

  .section-wide,
  .section-narrow {
    width: min(100% - 28px, 680px);
  }

  main section[id] {
    scroll-margin-top: 92px;
  }

  .section-title {
    gap: 10px;
    font-size: 28px;
  }

  .section-title::before,
  .section-title::after {
    width: 34px;
  }

  .price-section,
  .worry-section,
  .about-section,
  .doctor-section,
  .flow-section,
  .patient-section,
  .faq-section,
  .legal-section {
    padding: 58px 0;
  }

  .about-section {
    width: 100%;
    padding: 58px 14px;
  }

  .price-card,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .price-card {
    min-height: 0;
  }

  .big-cta {
    min-height: 86px;
    padding: 18px 20px;
    font-size: 26px;
  }

  .big-cta::after {
    width: 28px;
    height: 28px;
    margin-left: 12px;
  }

  .worry-layout,
  .risk-inner {
    gap: 28px;
  }

  .symptom-card {
    margin: 30px 0 24px;
    padding: 20px;
  }

  .education-copy h3,
  .symptom-check h3,
  .prevention-box h3 {
    font-size: 23px;
  }

  .education-copy p {
    font-size: 15px;
  }

  .education-image img {
    aspect-ratio: 4 / 3;
  }

  .check-list li {
    font-size: 16px;
  }

  .worry-image img {
    aspect-ratio: 1 / 1;
  }

  .prevention-box {
    margin-top: 0;
  }

  .prevention-image {
    margin-bottom: 18px;
  }

  .prevention-image img {
    aspect-ratio: 19 / 6;
  }

  .prevention-grid p {
    min-height: 0;
    padding: 16px;
    font-size: 14px;
  }

  .risk-inner {
    padding: 58px 0;
  }

  .risk-visual img {
    aspect-ratio: 16 / 10;
  }

  .risk-word {
    text-shadow:
      1.5px 1.5px 0 rgb(255 255 255 / 0.95),
      -1.5px 1.5px 0 rgb(255 255 255 / 0.95),
      1.5px -1.5px 0 rgb(255 255 255 / 0.95),
      -1.5px -1.5px 0 rgb(255 255 255 / 0.95);
  }

  .risk-word-main {
    top: 7%;
    right: 31%;
    font-size: 27px;
  }

  .risk-word-shake,
  .risk-word-bleed,
  .risk-word-pus {
    display: none;
  }

  .risk-word-pain {
    top: 12%;
    right: 6%;
    font-size: 18px;
  }

  .risk-word-chew {
    top: 17%;
    right: 14%;
    font-size: 15px;
  }

  .risk-word-gum {
    right: 4%;
    bottom: 19%;
    font-size: 15px;
  }

  .risk-word-breath {
    right: 16%;
    bottom: 32%;
    font-size: 17px;
  }

  .risk-item {
    min-height: 0;
  }

  .systemic-section {
    padding: 58px 0;
  }

  .systemic-heading h2 {
    font-size: 24px;
  }

  .systemic-heading p {
    font-size: 15px;
    line-height: 1.8;
  }

  .systemic-figure {
    padding: 14px;
    border-radius: 22px;
  }

  .risk-item strong,
  .feature-card strong,
  .flow-step strong,
  summary {
    font-size: 16px;
  }

  .notice-section {
    padding: 28px 20px;
  }

  .comparison-heading {
    margin-bottom: 28px;
    text-align: left;
  }

  .comparison-heading h2 {
    font-size: 28px;
  }

  .comparison-heading p,
  .comparison-card p {
    font-size: 15px;
    line-height: 1.85;
  }

  .comparison-card h3 {
    margin-bottom: 16px;
    font-size: 25px;
  }

  .comparison-card strong {
    margin-top: 18px;
    font-size: 20px;
  }

  .compare-brand {
    font-size: 28px;
  }

  .method-visual {
    min-height: 236px;
  }

  .method-visual-blue,
  .method-visual-conventional {
    min-height: 0;
  }

  .method-visual img,
  .method-visual-blue img {
    height: auto;
  }

  .comparison-note {
    padding: 16px 14px;
    text-align: left;
    font-size: 13px;
  }

  .feature-card {
    min-height: auto;
    padding: 22px;
  }

  .flow-list {
    gap: 10px;
  }

  .flow-step {
    grid-template-columns: 58px 1fr;
    min-height: 0;
    gap: 14px;
    padding: 18px 52px 18px 16px;
  }

  .flow-step::before {
    top: 18px;
    right: 16px;
    font-size: 12px;
  }

  .flow-step:not(:last-child)::after {
    top: 74px;
    bottom: -11px;
    left: 39px;
  }

  .flow-icon {
    width: 48px;
    height: 48px;
  }

  .flow-picto {
    width: 30px;
    height: 30px;
  }

  .patient-box {
    padding: 28px 20px;
  }

  details p {
    display: block;
  }

  .appointment-section {
    padding: 58px 14px 86px;
  }

  .appointment-inner {
    padding: 28px 20px;
  }

  .appointment-actions .button {
    width: 100%;
  }

  .map-frame {
    min-height: 250px;
  }

  .site-footer {
    padding: 30px 20px 92px;
  }

  .footer-main {
    gap: 22px;
  }

  .footer-nav {
    gap: 7px;
  }

  .footer-bottom {
    gap: 10px;
    margin-top: 24px;
  }

  .fixed-actions {
    right: 0;
    left: 0;
    bottom: 0;
    gap: 0;
  }

  .fixed-actions a {
    width: 50%;
    min-height: 58px;
  }

  .page-top {
    display: none;
  }
}