:root {
  color-scheme: light;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --ink: #172238;
  --muted: #667085;
  --soft: #f4faf8;
  --mint: #dcefea;
  --mint-strong: #2f7f78;
  --mint-deep: #1d6762;
  --peach: #fff4ee;
  --peach-border: #f4cbb8;
  --line: #dbe5e2;
  --surface: #ffffff;
  --blue-gray: #eef4f6;
  --shadow: 0 20px 60px rgba(28, 79, 75, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--ink);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

[hidden] {
  display: none !important;
}

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

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(20px, 5vw, 78px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(219, 229, 226, 0.8);
  backdrop-filter: blur(18px);
}

.brand,
.desktop-nav,
.hero-actions,
.trust-row,
.medical-footer > div {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand span:last-child {
  line-height: 1.25;
}

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  color: #ffffff;
  background: var(--mint-strong);
  border-radius: 8px;
}

.brand-mark svg {
  width: 19px;
  height: 19px;
}

.desktop-nav {
  gap: 30px;
  color: #4b5d68;
  font-size: 14px;
}

.desktop-nav a {
  padding: 8px 0;
}

.desktop-nav a:hover {
  color: var(--mint-deep);
}

.menu-button {
  display: none;
  width: 40px;
  height: 40px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.mobile-nav {
  position: fixed;
  inset: 72px 16px auto 16px;
  z-index: 30;
  padding: 10px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.mobile-nav a {
  display: block;
  padding: 14px 12px;
  color: var(--ink);
  border-bottom: 1px solid #eef3f1;
}

.mobile-nav a:last-child {
  border-bottom: 0;
}

.section {
  padding: 76px clamp(20px, 6vw, 84px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(420px, 1.1fr);
  align-items: center;
  min-height: 650px;
  padding-top: 54px;
  padding-bottom: 58px;
  overflow: hidden;
  background:
    linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.96) 35%, rgba(255, 255, 255, 0.2) 64%),
    linear-gradient(180deg, #ffffff 0%, #f6fbfa 100%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 560px;
  margin-bottom: 28px;
  color: #4a5a68;
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 0;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
}

.primary-action {
  color: #7a3a16;
  background: #fff4ee;
  border: 1px solid var(--peach-border);
}

.secondary-action {
  color: var(--mint-deep);
  background: #ffffff;
  border: 1px solid var(--line);
}

.primary-action:hover {
  color: #632d12;
  background: #ffe8dc;
}

.secondary-action:hover {
  border-color: var(--mint-strong);
}

.trust-row {
  flex-wrap: wrap;
  gap: 22px;
}

.trust-row div {
  display: grid;
  grid-template-columns: 36px auto;
  gap: 2px 10px;
  min-width: 156px;
}

.trust-row svg {
  grid-row: span 2;
  width: 34px;
  height: 34px;
  padding: 7px;
  color: var(--mint-deep);
  border: 1px solid rgba(47, 127, 120, 0.28);
  border-radius: 8px;
}

.trust-row span {
  font-size: 14px;
  font-weight: 700;
}

.trust-row small {
  color: var(--muted);
  font-size: 12px;
}

.hero-visual {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 62%;
}

.hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.74) 20%, rgba(255, 255, 255, 0.1) 46%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}

.hero-visual picture,
.hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-visual img {
  object-fit: cover;
  object-position: center right;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 30px;
}

.section-heading.compact {
  margin-bottom: 24px;
}

.section-heading h2 {
  margin-bottom: 12px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.2;
  letter-spacing: 0;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.contraindication-section {
  background: linear-gradient(180deg, #f4faf8 0%, #ffffff 100%);
}

.contraindication-panel,
.product-panel,
.dose-panel,
.reaction-panel {
  max-width: 940px;
  background: #ffffff;
  border: 1px solid #dceae7;
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(35, 88, 83, 0.08);
  overflow: hidden;
}

.dose-panel {
  max-width: 1100px;
}

.reaction-panel {
  max-width: 1100px;
}

.contraindication-panel summary,
.product-panel summary,
.dose-panel summary,
.reaction-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
  padding: 0 24px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  font-size: 18px;
  font-weight: 800;
}

.contraindication-panel summary::-webkit-details-marker,
.product-panel summary::-webkit-details-marker,
.dose-panel summary::-webkit-details-marker,
.reaction-panel summary::-webkit-details-marker {
  display: none;
}

.contraindication-panel summary svg,
.product-panel summary svg,
.dose-panel summary svg,
.reaction-panel summary svg {
  width: 22px;
  height: 22px;
  color: var(--mint-deep);
  transition: transform 180ms ease;
}

.contraindication-panel[open] summary svg,
.product-panel[open] summary svg,
.dose-panel[open] summary svg,
.reaction-panel[open] summary svg {
  transform: rotate(180deg);
}

.product-panel-content {
  padding: 0 24px 24px;
}

.dose-panel-content {
  padding: 0 24px 24px;
}

.reaction-panel-content {
  padding: 0 24px 24px;
}

.contraindication-content {
  padding: 0 24px 24px;
  color: #526875;
}

.contraindication-content ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 28px;
  margin: 0 0 18px;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
}

.contraindication-content li::marker {
  color: var(--mint-deep);
  font-weight: 800;
}

.contraindication-content p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
}

.contraindication-content .note-strong {
  padding: 12px 14px;
  color: #7a3a16;
  background: #fff7ed;
  border: 1px solid #f4d5b5;
  border-radius: 8px;
  font-weight: 800;
}

.version-section {
  background: #ffffff;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-bottom: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tab {
  min-height: 58px;
  color: #324453;
  background: #ffffff;
  border: 0;
  border-right: 1px solid var(--line);
  cursor: pointer;
}

.tab:last-child {
  border-right: 0;
}

.tab.is-active {
  color: #ffffff;
  background: var(--mint-strong);
  font-weight: 700;
}

.tab:focus-visible,
.faq-item:focus-visible,
.menu-button:focus-visible,
.primary-action:focus-visible,
.secondary-action:focus-visible,
.contraindication-panel summary:focus-visible,
.product-panel summary:focus-visible,
.dose-panel summary:focus-visible,
.reaction-panel summary:focus-visible {
  outline: 3px solid rgba(47, 127, 120, 0.28);
  outline-offset: 3px;
}

.tab-panel {
  display: block;
  padding: clamp(16px, 3vw, 28px);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(35, 88, 83, 0.08);
}

.product-grid {
  display: grid;
  grid-template-columns: minmax(220px, 360px);
  gap: 18px;
  align-items: start;
}

.product-item {
  display: grid;
  gap: 12px;
}

.product-card {
  display: block;
  width: 100%;
  padding: 10px 10px 14px;
  color: var(--ink);
  text-align: left;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.product-card:hover,
.product-card[aria-expanded="true"] {
  border-color: rgba(47, 127, 120, 0.55);
  box-shadow: 0 14px 34px rgba(35, 88, 83, 0.12);
  transform: translateY(-1px);
}

.product-showcase {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 8px;
}

.product-card-title,
.product-card-hint {
  display: block;
}

.product-card-title {
  margin-top: 12px;
  font-size: 15px;
  font-weight: 800;
}

.product-card-hint {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.product-info {
  max-width: none;
  margin-top: 0;
  padding: 20px;
  background: #f4faf8;
  border: 1px solid #dceae7;
  border-radius: 8px;
}

.product-info dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.product-info div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
}

.product-info dt {
  color: #244845;
  font-size: 14px;
  font-weight: 800;
}

.product-info dd {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  color: #536675;
  font-size: 14px;
  line-height: 1.7;
}

.product-info a {
  color: var(--mint-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.product-info dd span {
  padding: 4px 9px;
  color: #244845;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.focus-grid h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.focus-grid p {
  margin-bottom: 0;
  color: #5f6f7a;
  font-size: 14px;
  line-height: 1.75;
}

.women-section {
  background: #ffffff;
}

.dose-section {
  background: linear-gradient(180deg, #f4faf8 0%, #ffffff 100%);
}

.dose-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
  max-width: 1100px;
}

.dose-card {
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.dose-card-featured {
  background: #ffffff;
  border-color: rgba(47, 127, 120, 0.34);
  box-shadow: 0 18px 44px rgba(35, 88, 83, 0.08);
}

.dose-card svg {
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  color: var(--mint-deep);
}

.dose-card h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.dose-card p {
  margin-bottom: 0;
  color: #5f6f7a;
  font-size: 14px;
  line-height: 1.75;
}

.reaction-section {
  background: #ffffff;
}

.reaction-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 1100px;
}

.reaction-card {
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.reaction-card-featured {
  background: #fff8f4;
  border-color: var(--peach-border);
}

.reaction-card svg {
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  color: var(--mint-deep);
}

.reaction-card-featured svg {
  color: #d46b42;
}

.reaction-card h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.reaction-card p {
  margin-bottom: 0;
  color: #5f6f7a;
  font-size: 14px;
  line-height: 1.75;
}

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

.focus-grid article {
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.focus-grid svg {
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  color: var(--mint-deep);
}

.faq-section {
  background: #fbfdfd;
}

.faq-list {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
}

.faq-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 58px;
  padding: 0 20px;
  color: var(--ink);
  background: #ffffff;
  border: 0;
  border-bottom: 1px solid #e7eeec;
  cursor: pointer;
  text-align: left;
}

.faq-item span {
  font-weight: 700;
}

.faq-item svg {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: var(--mint-deep);
  transition: transform 180ms ease;
}

.faq-item[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 18px 20px 22px;
  color: #526575;
  font-size: 14px;
  line-height: 1.8;
  background: #fbfdfd;
  border-bottom: 1px solid #e7eeec;
}

.medical-footer {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 30px;
  margin: 0 clamp(20px, 6vw, 84px) 56px;
  padding: 28px;
  color: #33475a;
  background: var(--peach);
  border: 1px solid var(--peach-border);
  border-radius: 8px;
}

.medical-footer > div {
  gap: 12px;
  font-size: 18px;
}

.medical-footer svg {
  width: 32px;
  height: 32px;
  color: #e68154;
}

.medical-footer p {
  margin: 0;
  color: #536675;
  font-size: 14px;
  line-height: 1.85;
}

svg {
  stroke-width: 1.8;
}

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .menu-button {
    display: grid;
    place-items: center;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 38px;
  }

  .hero-visual {
    position: relative;
    width: 100%;
    height: min(640px, 125vw);
    margin-top: 34px;
    border-radius: 8px;
    overflow: hidden;
    background: #f7fbfa;
  }

  .hero-visual img {
    object-fit: contain;
    object-position: center center;
  }

  .hero-visual::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 45%, #ffffff 100%);
  }

  .medical-footer {
    grid-template-columns: 1fr;
  }

  .focus-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dose-layout {
    grid-template-columns: 1fr;
  }

  .reaction-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    height: 64px;
    padding: 0 16px;
  }

  .mobile-nav {
    inset: 64px 12px auto 12px;
  }

  .section {
    padding: 54px 18px;
  }

  h1 {
    font-size: 42px;
  }

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

  .brand span:last-child {
    max-width: calc(100vw - 124px);
    font-size: 14px;
  }

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

  .tab {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .tab:last-child {
    border-bottom: 0;
  }

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

  .contraindication-content ol {
    grid-template-columns: 1fr;
  }

  .product-info div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .medical-footer {
    margin: 0 18px 38px;
    padding: 22px;
  }
}