:root {
  --red: #d82025;
  --orange: #ff7a1a;
  --green: #6fae55;
  --mint: #edf8f2;
  --cream: #fff8ed;
  --dark: #111111;
  --text: #252525;
  --muted: #444844;
  --line: rgba(22, 22, 22, 0.14);
  --shadow: 0 24px 70px rgba(32, 42, 33, 0.12);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(124, 191, 98, 0.18), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, #fbfff9 38%, #fff8ee 100%);
  line-height: 1.6;
}

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

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

.container {
  width: min(1400px, calc(100% - 40px));
  margin: 0 auto;
}

.section-padding {
  padding: 90px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(30, 60, 35, 0.08);
}

.header-inner {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.logo-link {
  display: flex;
  align-items: center;
  height: 76px;
  overflow: hidden;
}

.logo {
  width: 250px;
  height: 100px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.main-nav a {
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  color: #243624;
  transition: 0.25s ease;
}

.main-nav a:hover {
  background: var(--mint);
  color: var(--red);
}

.hero {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.95) 0%,
    rgba(255, 255, 255, 0.78) 34%,
    rgba(255, 255, 255, 0.18) 64%,
    rgba(255, 255, 255, 0.04) 100%
  );
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0;
}

.hero-card {
  max-width: 610px;
  padding: 44px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.74);
}

.eyebrow,
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--red);
  background: rgba(216, 32, 37, 0.08);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1,
.section-head h2,
.intro-text h2,
.work-panel h2,
.routine-grid h2 {
  margin: 18px 0;
  color: var(--dark);
  line-height: 1.08;
}

.hero h1 {
  font-size: clamp(38px, 5vw, 68px);
  letter-spacing: -0.05em;
}

.hero p {
  max-width: 540px;
  font-size: 18px;
  color: #343934;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
}

.hero-points span {
  padding: 10px 13px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(124, 191, 98, 0.32);
  color: #263b27;
  font-size: 14px;
  font-weight: 700;
}

.notice-section {
  padding: 22px 0 0;
}

.notice {
  padding: 20px 24px;
  border-radius: var(--radius-md);
  background: #fff7e8;
  border: 1px solid rgba(255, 122, 26, 0.22);
  color: #4b3925;
}

.notice strong {
  color: #171717;
}

.intro-grid,
.work-grid,
.routine-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
}

.intro-text h2,
.work-panel h2,
.routine-grid h2,
.section-head h2 {
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -0.04em;
}

.intro-text p,
.work-panel p,
.routine-grid p,
.section-head p {
  font-size: 17px;
  color: #444844;
}

.quick-card {
  padding: 34px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(237, 248, 242, 0.92));
  box-shadow: var(--shadow);
  border: 1px solid rgba(124, 191, 98, 0.18);
}

.quick-card h3 {
  margin: 0 0 20px;
  color: var(--dark);
  font-size: 26px;
}

.quick-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.quick-card li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.quick-card li:last-child {
  border-bottom: 0;
}

.quick-card span {
  color: #4a4f4a;
}

.quick-card b {
  color: #172617;
  text-align: right;
}

.formula-section {
  background:
    radial-gradient(circle at top right, rgba(255, 122, 26, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(237, 248, 242, 0.8), rgba(255, 255, 255, 0.9));
}

.section-head {
  max-width: 780px;
  margin-bottom: 42px;
}

.section-head.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.formula-infographic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  position: relative;
}

.formula-card {
  position: relative;
  min-height: 245px;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(124, 191, 98, 0.2);
  box-shadow: 0 18px 50px rgba(30, 60, 35, 0.08);
  overflow: hidden;
  transition: 0.25s ease;
}

.formula-card::before {
  content: "";
  position: absolute;
  inset: auto -30px -45px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 26, 0.18), transparent 68%);
}

.formula-card:hover {
  transform: translateY(-6px);
  border-color: rgba(216, 32, 37, 0.18);
  box-shadow: 0 24px 60px rgba(30, 60, 35, 0.13);
}

.formula-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--red), var(--orange));
  color: #ffffff;
  font-weight: 900;
  font-size: 20px;
  margin-bottom: 18px;
}

.formula-card h3 {
  margin: 0 0 6px;
  color: var(--dark);
  font-size: 20px;
  line-height: 1.18;
}

.formula-card span {
  display: block;
  color: #4f8e38;
  font-weight: 800;
  margin-bottom: 12px;
}

.formula-card p {
  margin: 0;
  color: #454a45;
  font-size: 15px;
}

.work-panel {
  padding: 38px;
  border-radius: var(--radius-xl);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.steps {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.step {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 16px;
  padding: 18px;
  border-radius: 18px;
  background: #fbfff9;
  border: 1px solid rgba(124, 191, 98, 0.18);
}

.step b {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(216, 32, 37, 0.08);
  color: var(--red);
  font-size: 18px;
}

.step h3 {
  margin: 0 0 6px;
  color: var(--dark);
}

.step p {
  margin: 0;
  font-size: 15px;
  color: #444844;
}

.symptom-card {
  padding: 38px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255, 248, 237, 0.92), rgba(237, 248, 242, 0.95));
  border: 1px solid rgba(255, 122, 26, 0.14);
}

.symptom-card h3 {
  margin: 0 0 12px;
  font-size: 30px;
  color: var(--dark);
}

.symptom-card p {
  color: #444844;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tag-cloud span {
  padding: 11px 14px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(124, 191, 98, 0.22);
  font-size: 14px;
  font-weight: 700;
  color: #263b27;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.benefit-card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid rgba(30, 60, 35, 0.08);
  box-shadow: 0 15px 45px rgba(30, 60, 35, 0.07);
}

.benefit-card span {
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #ffb066, var(--orange) 44%, var(--red) 100%);
  margin-bottom: 20px;
}

.benefit-card h3 {
  margin: 0 0 10px;
  color: var(--dark);
  font-size: 22px;
}

.benefit-card p {
  margin: 0;
  color: #444844;
}

.banner-strip {
  width: min(1500px, calc(100% - 40px));
  margin: 20px auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.banner-strip img {
  width: 100%;
  height: auto;
}

.routine-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.65), rgba(237, 248, 242, 0.7));
}

.routine-box {
  display: grid;
  gap: 16px;
}

.routine-item {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid rgba(124, 191, 98, 0.18);
  box-shadow: 0 16px 40px rgba(30, 60, 35, 0.06);
}

.routine-item b {
  display: block;
  color: var(--dark);
  font-size: 20px;
  margin-bottom: 6px;
}

.routine-item span {
  color: #444844;
}

.faq-list {
  display: grid;
  gap: 14px;
  max-width: 960px;
  margin: 0 auto;
}

details {
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid rgba(30, 60, 35, 0.1);
  box-shadow: 0 12px 34px rgba(30, 60, 35, 0.06);
  overflow: hidden;
}

summary {
  cursor: pointer;
  padding: 22px 24px;
  font-weight: 900;
  color: var(--dark);
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  float: right;
  color: var(--red);
  font-size: 24px;
  line-height: 1;
}

details[open] summary::after {
  content: "−";
}

details p {
  margin: 0;
  padding: 0 24px 24px;
  color: #444844;
}

.site-footer {
  padding: 38px 0;
  background: #111711;
  color: rgba(255, 255, 255, 0.78);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.footer-inner img {
  width: 210px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 24px rgba(255, 122, 26, 0.16));
}

.footer-inner p {
  max-width: 680px;
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
}

@media (max-width: 1100px) {
  .formula-infographic,
  .benefit-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero {
    min-height: 560px;
  }

  .hero-card {
    max-width: 560px;
  }
}

@media (max-width: 860px) {
  .container {
    width: min(100% - 28px, 1400px);
  }

  .section-padding {
    padding: 64px 0;
  }

  .header-inner {
    height: auto;
    padding: 10px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .logo-link {
    height: 64px;
  }

  .logo {
    width: 190px;
    height: 76px;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .main-nav a {
    white-space: nowrap;
    background: #fbfff9;
  }

  .hero {
    min-height: auto;
    display: block;
    background: #ffffff;
  }

  .hero-bg {
    position: relative;
    height: 330px;
    order: 1;
  }

  .hero-bg::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.18));
  }

  .hero-content {
    padding: 0 0 28px;
    margin-top: -36px;
  }

  .hero-card {
    padding: 28px;
    border-radius: 26px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .intro-grid,
  .work-grid,
  .routine-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 620px) {
  .formula-infographic,
  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .hero-bg {
    height: 280px;
  }

  .hero-bg img {
    object-position: 67% center;
  }

  .quick-card,
  .work-panel,
  .symptom-card {
    padding: 24px;
  }

  .quick-card li {
    flex-direction: column;
    gap: 2px;
  }

  .quick-card b {
    text-align: left;
  }

  .step {
    grid-template-columns: 1fr;
  }

  .banner-strip {
    width: calc(100% - 24px);
    border-radius: 24px;
  }

  .banner-strip img {
    min-height: 220px;
    object-fit: cover;
    object-position: 65% center;
  }
}