:root {
  --brand: #f1812d;
  --brand-deep: #c95d16;
  --text: #111111;
  --muted: #666666;
  --line: #dedede;
  --card-line: rgba(0, 0, 0, 0.1);
  --surface: #ffffff;
  --page: #f4f4f4;
  --soft-blue: #f6f8f2;
  --teal: #f1812d;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: #f4f4f4;
  color: var(--text);
  font-family: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  background: #ffffff;
  font-size: 14px;
  line-height: 1.5;
  overflow-x: hidden;
  overflow-wrap: anywhere;
}

button,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

button,
.nav-link,
.app-trigger,
.locale-trigger,
.login-button,
.primary-cta,
.contact-login,
.purchase-submit {
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

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

img,
svg {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  height: 68px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.96);
  backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.26);
}

.header-inner {
  width: min(calc(100% - 40px), 1320px);
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 0 0 auto;
  min-width: 176px;
}

.brand-logo {
  width: 176px;
  height: 32px;
  background: url("./assets/hypergem-logo-hd.png") left center / contain no-repeat;
}

.main-nav {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 28px;
  min-width: 0;
  margin-left: 28px;
  margin-right: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 36px;
  border: 0;
  background: transparent;
  color: #f5f5f5;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.nav-link svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-link:hover {
  color: var(--brand);
}

.header-actions {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 12px;
  margin-left: auto;
  color: #d8d8d8;
}

.app-trigger,
.locale-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #d8d8d8;
  cursor: pointer;
  white-space: nowrap;
}

.language-switcher {
  position: relative;
  display: inline-flex;
}

.app-trigger svg,
.locale-trigger svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.locale-trigger .chevron {
  width: 14px;
  height: 14px;
}

.language-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 50;
  display: none;
  min-width: 118px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 4px;
  background: #111111;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.32);
}

.language-menu.is-open {
  display: block;
}

.language-menu button {
  display: block;
  width: 100%;
  height: 34px;
  padding: 0 10px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: #f5f5f5;
  text-align: left;
}

.language-menu button:hover,
.language-menu button.is-active {
  background: rgba(241, 129, 45, 0.16);
  color: var(--brand);
}

.locale-trigger:hover {
  background: rgba(241, 129, 45, 0.16);
  color: var(--brand);
}

.login-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  min-height: 38px;
  padding: 0 18px;
  border: 1px solid var(--brand);
  border-radius: 999px;
  background: var(--brand);
  color: #000000;
  font-size: 14px;
  font-weight: 700;
  box-shadow: none;
  white-space: nowrap;
}

.login-button:hover {
  border-color: var(--brand);
  background: #ff9445;
  color: #000000;
}

.page-shell {
  min-height: calc(100vh - 68px);
  padding: 36px 0 96px;
  background:
    linear-gradient(180deg, #0a0a0a 0, #151515 330px, #f4f4f4 330px, #f4f4f4 100%),
    #f4f4f4;
}

.hero-card,
.content-card {
  width: calc(100% - 104px);
  max-width: 1320px;
  margin: 0 auto;
  border: 1px solid var(--card-line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.08);
}

.hero-card {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 32px;
  min-height: 516px;
  padding: 28px 32px 28px;
  border-color: rgba(255, 255, 255, 0.12);
  background: #111111;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

.product-media {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 232px;
  margin-top: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  background: #1d1d1d;
}

.product-media img {
  width: 300px;
  max-width: 86%;
  height: auto;
  object-fit: contain;
}

.hot-badge {
  position: absolute;
  top: 13px;
  left: 13px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 13px;
  border-radius: 999px;
  background: var(--brand);
  color: #000000;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(241, 129, 45, 0.22);
}

.product-info {
  padding-top: 5px;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--brand);
  font-weight: 700;
  line-height: 22px;
}

h1 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 7px;
  color: #ffffff;
  font-size: 29.6px;
  line-height: 37px;
  letter-spacing: 0;
}

.title-badge {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(241, 129, 45, 0.48);
  border-radius: 999px;
  background: rgba(241, 129, 45, 0.12);
  color: var(--brand);
  font-size: 13px;
  font-weight: 700;
  line-height: 18px;
  white-space: nowrap;
}

.subtitle {
  margin: 0 0 20px;
  color: #cfcfcf;
  font-size: 14px;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 22px;
}

.metric-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 78px;
  padding: 14px 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 4px;
  background: #191919;
  text-align: center;
}

.metric-card,
.share-stat-card,
.benefit-item,
.agreement-copy,
.value-card,
.scenario-card,
.skill-card,
.purchase-summary {
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.metric-card strong {
  display: block;
  max-width: 100%;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  line-height: 24px;
  overflow-wrap: anywhere;
}

.metric-card span {
  margin-top: 6px;
  color: #a8a8a8;
  line-height: 21px;
}

.summary-box {
  min-height: 104px;
  margin: 0 0 22px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  background: #181818;
  color: #d8d8d8;
  font-weight: 500;
  line-height: 28px;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 22px;
}

.price-row strong {
  color: var(--brand);
  font-size: 34px;
  font-weight: 800;
  line-height: 1;
}

.price-row span {
  color: var(--muted);
}

.primary-cta {
  width: 100%;
  height: 48px;
  border: 0;
  border-radius: 0;
  background: var(--brand);
  color: #000000;
  font-size: 16px;
  font-weight: 700;
  box-shadow: none;
}

.primary-cta:hover {
  background: #ff9445;
  box-shadow: none;
}

.content-card {
  margin-top: 28px;
  padding: 24px 28px 24px;
}

.purchase-mode-grid,
.share-grid {
  display: grid;
  gap: 14px;
}

.purchase-mode-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.share-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.purchase-mode-item {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 20px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  background: #fafafa;
}

.purchase-mode-item.is-featured {
  border-color: rgba(241, 129, 45, 0.42);
  background: #fff7f1;
}

.purchase-mode-item span {
  color: var(--muted);
  font-weight: 700;
}

.purchase-mode-item strong {
  display: block;
  color: #111111;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.05;
  letter-spacing: 0;
}

.purchase-mode-item p {
  margin: 0;
  color: #555555;
  font-weight: 500;
  line-height: 24px;
}

.purchase-mode-item .primary-cta {
  width: auto;
  min-width: 156px;
  padding: 0 22px;
}

.share-stat-card {
  min-height: 96px;
  padding: 18px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  background: #fafafa;
}

.share-stat-card span,
.purchase-summary span {
  display: block;
  color: var(--muted);
  font-weight: 600;
}

.share-stat-card strong {
  display: block;
  margin-top: 8px;
  color: #111111;
  font-size: 24px;
  line-height: 32px;
}

.share-stat-card strong b {
  font: inherit;
}

.share-stat-card.highlight {
  background: #fff3e9;
  border-color: rgba(241, 129, 45, 0.48);
}

.share-stat-card.highlight strong {
  color: var(--brand);
}

.share-note {
  margin: 16px 0 0;
  padding: 14px 16px;
  border: 1px solid rgba(241, 129, 45, 0.34);
  border-radius: 4px;
  background: #fff7f1;
  color: #333333;
  font-weight: 500;
  line-height: 24px;
}

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

.benefit-item {
  min-height: 130px;
  padding: 18px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  background: #ffffff;
}

.benefit-item h3 {
  margin: 0;
  color: #111111;
  font-size: 15px;
  line-height: 22.5px;
}

.benefit-item p {
  margin: 9px 0 0;
  color: #555555;
  font-weight: 500;
  line-height: 23px;
}

.agreement-copy {
  padding: 18px 20px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  background: #fafafa;
  color: #333333;
}

.agreement-copy p {
  margin: 0 0 14px;
  font-weight: 600;
  line-height: 24px;
}

.agreement-copy ol {
  margin: 0;
  padding-left: 20px;
}

.agreement-copy li {
  padding-left: 4px;
  line-height: 25px;
}

.section-title {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 28px;
  margin: 0 0 20px;
  padding-left: 20px;
  color: #111111;
  font-size: 18px;
  line-height: 27px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 8px;
  height: 28px;
  border-radius: 999px;
  transform: translateY(-50%);
  background: var(--brand);
}

.section-title.orange::before,
.section-title.teal::before {
  background: var(--brand);
}

.section-title.violet::before {
  background: var(--brand);
}

.section-title.cyan-line::before {
  background: var(--brand);
}

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

.value-card,
.skill-card,
.scenario-card {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.66);
}

.value-card {
  min-height: 88px;
  padding: 17px 18px 16px;
}

.value-card h3,
.skill-card h3,
.scenario-card h3 {
  margin: 0;
  color: #111111;
  font-size: 15px;
  line-height: 22.5px;
}

.value-card p,
.skill-card p,
.scenario-card p {
  margin: 9px 0 0;
  color: #555555;
  font-weight: 500;
  line-height: 22px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.scenario-card {
  display: flex;
  min-height: 164px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 22px;
  text-align: center;
}

.icon-pill,
.skill-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 10px;
}

.icon-pill {
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  background: #fff3e9;
  color: var(--brand);
  transition: transform 0.2s ease;
}

.icon-pill svg,
.skill-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.skill-card {
  min-height: 150px;
  padding: 20px;
}

.skill-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 16px;
  transition: transform 0.2s ease;
}

.skill-icon.mint {
  background: #fff3e9;
  color: #c95d16;
}

.skill-icon.lilac {
  background: #fff6ef;
  color: #c95d16;
}

.skill-icon.orange {
  background: #fff3e9;
  color: #c95d16;
}

.skill-icon.blue {
  background: #fff3e9;
  color: #c95d16;
}

.skill-icon.cyan {
  background: #fff7f1;
  color: #c95d16;
}

.skill-icon.sky {
  background: #fff3e9;
  color: #c95d16;
}

.specs-card {
  padding-bottom: 32px;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  color: #111111;
  background: #ffffff;
}

th,
td {
  height: 43px;
  padding: 10px 12px;
  border: 1px solid #dedede;
  text-align: left;
  vertical-align: middle;
}

th {
  width: 130px;
  background: #f5f5f5;
  color: #111111;
  font-weight: 700;
  text-align: center;
}

td:first-of-type {
  width: 170px;
  background: #f5f5f5;
  color: #111111;
  font-weight: 700;
}

.app-popover {
  position: fixed;
  top: 64px;
  right: 134px;
  z-index: 30;
  display: none;
  width: 168px;
  padding: 14px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 4px;
  background: #ffffff;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.app-popover.is-open {
  display: block;
}

.app-popover img {
  width: 132px;
  height: 132px;
  margin: 0 auto 10px;
  border-radius: 8px;
}

.app-popover strong,
.app-popover span {
  display: block;
}

.app-popover span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.contact-panel {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 40;
  display: none;
  width: min(360px, calc(100vw - 32px));
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 4px;
  background: #ffffff;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.contact-panel.is-open {
  display: block;
}

.contact-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.contact-header strong,
.contact-header span {
  display: block;
}

.contact-header span {
  margin-top: 4px;
  color: var(--muted);
}

.contact-header button {
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 0;
  background: #f5f5f5;
  color: #333333;
  font-size: 22px;
  line-height: 1;
}

.contact-body {
  padding: 16px;
}

.purchase-summary {
  width: 100%;
  padding: 12px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  background: #fafafa;
}

.purchase-summary strong {
  display: block;
  margin-top: 6px;
  color: #111111;
  line-height: 22px;
}

.purchase-summary small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 20px;
}

.channel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 10px;
  background: #f8fbff;
  color: #334155;
}

.contact-login {
  width: 100%;
  height: 42px;
  margin-top: 12px;
  border: 0;
  border-radius: 0;
  background: var(--brand);
  color: #000000;
  font-weight: 700;
}

.contact-login:hover,
.primary-cta:hover,
.purchase-submit:hover {
  transform: translateY(-1px);
}

.purchase-modal {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: none;
  place-items: center;
  padding: 18px;
}

.purchase-modal.is-open {
  display: grid;
}

.purchase-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
}

.purchase-dialog {
  position: relative;
  z-index: 1;
  width: min(480px, calc(100vw - 32px));
  max-height: calc(100vh - 36px);
  overflow-y: auto;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 4px;
  background: #ffffff;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.28);
  animation: purchaseDialogIn 0.2s ease both;
}

.purchase-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.purchase-modal-header strong,
.purchase-modal-header span {
  display: block;
}

.purchase-modal-header strong {
  color: #111111;
  font-size: 18px;
  line-height: 26px;
}

.purchase-modal-header span {
  margin-top: 4px;
  color: var(--muted);
  line-height: 22px;
}

.purchase-close {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 0;
  background: #f5f5f5;
  color: #333333;
  font-size: 22px;
  line-height: 1;
}

.purchase-close:hover,
.contact-header button:hover {
  background: #fff3e9;
  color: var(--brand-deep);
}

.purchase-form {
  padding: 16px 18px 18px;
}

.purchase-form-summary {
  margin-bottom: 14px;
}

.form-field {
  display: block;
  margin-top: 12px;
}

.form-field span {
  display: block;
  margin-bottom: 6px;
  color: #222222;
  font-weight: 700;
  line-height: 21px;
}

.form-field input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 4px;
  outline: 0;
  background: #ffffff;
  color: #111111;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.form-field:hover input,
.form-field input:focus {
  border-color: rgba(241, 129, 45, 0.72);
  background: #fffaf6;
  box-shadow: 0 0 0 3px rgba(241, 129, 45, 0.12);
  transform: translateY(-1px);
}

.purchase-submit {
  width: 100%;
  height: 44px;
  margin-top: 16px;
  border: 0;
  border-radius: 0;
  background: var(--brand);
  color: #000000;
  font-weight: 800;
}

.purchase-submit.is-complete {
  background: #111111;
  color: #ffffff;
}

.purchase-form-status {
  min-height: 20px;
  margin: 10px 0 0;
  color: var(--brand-deep);
  font-weight: 700;
  line-height: 20px;
}

@keyframes purchaseDialogIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (hover: hover) {
  .metric-card:hover {
    border-color: rgba(241, 129, 45, 0.5);
    background: #202020;
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.24);
    transform: translateY(-3px);
  }

  .share-stat-card:hover,
  .purchase-mode-item:hover,
  .benefit-item:hover,
  .agreement-copy:hover,
  .value-card:hover,
  .scenario-card:hover,
  .skill-card:hover,
  .purchase-summary:hover {
    border-color: rgba(241, 129, 45, 0.48);
    background: #ffffff;
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.08);
    transform: translateY(-3px);
  }

  .scenario-card:hover .icon-pill,
  .skill-card:hover .skill-icon {
    transform: translateY(-1px) scale(1.05);
  }
}

@media (max-width: 1100px) {
  .header-actions {
    gap: 12px;
  }

  .hero-card,
  .content-card {
    width: min(calc(100% - 32px), 1320px);
  }


  .hero-card {
    grid-template-columns: 1fr;
  }

  .product-media {
    height: 260px;
  }

  .product-media img {
    width: min(440px, 88%);
  }
}

@media (max-width: 960px) {
  .header-inner {
    width: min(calc(100% - 32px), 1320px);
  }

  .main-nav {
    display: none;
  }
}

@media (max-width: 760px) {
  .header-inner {
    min-height: 68px;
  }

  .brand {
    min-width: 132px;
  }

  .brand-logo {
    width: 132px;
    height: 24px;
  }

  .header-actions {
    gap: 12px;
  }

  .page-shell {
    padding: 28px 0 64px;
  }

  .hero-card,
  .content-card {
    width: calc(100% - 24px);
    border-radius: 4px;
  }

  .hero-card {
    gap: 24px;
    padding: 18px 16px;
  }

  .product-media {
    height: 252px;
  }

  h1 {
    font-size: 24px;
    line-height: 32px;
  }

  .title-badge {
    display: inline-block;
    max-width: 100%;
    overflow-wrap: anywhere;
    white-space: normal;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .summary-box {
    line-height: 26px;
  }

  .price-row strong {
    font-size: 30px;
  }

  .content-card {
    margin-top: 20px;
    padding: 16px;
  }

  .value-grid,
  .scenario-grid,
  .skill-grid,
  .purchase-mode-grid,
  .share-grid,
  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .scenario-card {
    min-height: 160px;
  }

  .skill-grid {
    gap: 12px;
  }

  .app-popover {
    top: 64px;
    right: 16px;
  }
}

@media (max-width: 640px) {
  .login-button {
    display: none;
  }
}

@media (max-width: 560px) {
  .metric-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .site-header {
    gap: 0;
  }

  .product-media {
    height: 252px;
  }

  .product-media img {
    width: 342px;
    max-width: 96%;
  }

  .metric-card strong {
    font-size: 15px;
    overflow: visible;
    text-overflow: clip;
    white-space: normal;
  }

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

  .primary-cta {
    border-radius: 10px;
  }
}