.battery-monitor-page {
  background: #f2f9ff;
  font-family: "Noto Sans JP", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

.battery-monitor-page .topbar {
  background: rgba(255, 255, 255, 0.82);
}

.battery-detail-main {
  overflow: hidden;
  background: #f2f9ff;
}

.battery-hero {
  position: relative;
  height: 400px;
  background: #f7fbff;
  overflow: hidden;
}

.battery-hero__bg {
  position: absolute;
  inset: 0;
  background:
    url("./assets/battery-monitor/hero-bg-2.png") center / cover no-repeat,
    url("./assets/battery-monitor/hero-bg-1.png") center / cover no-repeat;
}

.battery-hero__inner {
  position: relative;
  z-index: 1;
  height: 400px;
  display: grid;
  justify-items: center;
  align-content: center;
  text-align: center;
  color: #2f3548;
}

.battery-hero h1 {
  margin: 0 0 10px;
  font-size: 32px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.battery-hero p {
  margin: 0 0 14px;
  font-family: "Outfit", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.2;
  font-weight: 300;
  color: #5f6878;
}

.battery-hero span {
  display: block;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.2em;
  color: #2f3548;
}

.battery-intro {
  min-height: 680px;
  background: #fff;
}

.battery-intro__inner {
  min-height: 680px;
  padding: 103px 0 96px;
  display: grid;
  grid-template-columns: minmax(0, 580px) minmax(0, 680px);
  align-items: center;
  justify-content: space-between;
  column-gap: clamp(36px, 4vw, 84px);
}

.battery-intro__copy {
  min-width: 0;
  max-width: 580px;
  color: #2f3548;
}

.battery-intro__copy h2,
.battery-territory h3,
.battery-section-heading h2 {
  margin: 0;
  color: #2f3548;
  font-size: 32px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.battery-intro__copy span,
.battery-territory span,
.battery-section-heading span {
  display: block;
  margin-top: 28px;
  font-family: "Outfit", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.2;
  font-weight: 300;
  color: #666;
}

.battery-intro__copy p {
  margin: 27px 0 0;
  color: #545454;
  font-size: 16px;
  line-height: 28px;
  letter-spacing: 0.06em;
  overflow-wrap: anywhere;
}

.battery-intro__visual {
  min-width: 0;
  width: 100%;
  max-width: 680px;
  display: grid;
  place-items: center;
  justify-self: end;
}

.battery-intro__visual img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
}

.battery-architecture-section {
  padding: 80px 0 60px;
  background: #f2f9ff;
}

.battery-architecture {
  position: relative;
  width: 100%;
  aspect-ratio: 1336 / 817;
}

.battery-architecture__card {
  position: absolute;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
}

.battery-architecture__card img {
  display: block;
  object-fit: contain;
}

.battery-architecture__card h3 {
  position: absolute;
  right: 12px;
  bottom: clamp(8px, 2.1vw, 28px);
  left: 12px;
  margin: 0;
  color: #111;
  font-size: clamp(10px, 1.35vw, 18px);
  line-height: 1.25;
  font-weight: 500;
  letter-spacing: 0;
  text-align: center;
  overflow-wrap: anywhere;
}

.battery-architecture__card--rickshaw,
.battery-architecture__card--battery {
  left: 0;
  width: 16.48%;
  height: 24.48%;
}

.battery-architecture__card--rickshaw {
  top: 0;
}

.battery-architecture__card--battery {
  top: 26.93%;
}

.battery-architecture__card--rickshaw img {
  position: absolute;
  top: 14.99%;
  left: 16.83%;
  width: 66.24%;
  height: 56.61%;
  margin: 0;
}

.battery-architecture__card--battery img {
  position: absolute;
  top: 14.99%;
  left: 36.54%;
  width: 26.91%;
  height: 46.83%;
  margin: 0;
}

.battery-architecture__card--tcu {
  left: 29.59%;
  top: 0;
  width: 31.46%;
  height: 51.41%;
}

.battery-architecture__card--tcu img {
  position: absolute;
  top: 23.56%;
  left: 13.82%;
  width: 72.37%;
  height: 47.15%;
  margin: 0;
}

.battery-architecture__card--cloud {
  left: 74.53%;
  top: 0;
  width: 25.47%;
  height: 51.41%;
}

.battery-architecture__cloud-content {
  position: absolute;
  inset: 0;
}

.battery-architecture__cloud-content img {
  position: absolute;
  top: 26.9%;
  left: 20.88%;
  width: 58.1%;
  height: 36.99%;
}

.battery-architecture__card--web,
.battery-architecture__card--mobile {
  top: 68.18%;
  width: 46.44%;
  height: 31.82%;
}

.battery-architecture__card--web {
  left: 0;
}

.battery-architecture__card--mobile {
  right: 0;
}

.battery-architecture__card--web img {
  position: absolute;
  top: 11.53%;
  left: 27.75%;
  width: 44.46%;
  height: 63.16%;
  margin: 0;
}

.battery-architecture__phones {
  position: absolute;
  top: 11.54%;
  left: 36.94%;
  width: 26.29%;
  height: 60.38%;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 5.1%;
}

.battery-architecture__phones img {
  width: 47.48%;
  height: 100%;
  filter: drop-shadow(0 4px 4px rgba(0, 0, 0, 0.16));
}

.battery-architecture__line {
  position: absolute;
  z-index: 2;
  background: #f59a00;
}

.battery-architecture__line::after {
  position: absolute;
  width: clamp(8px, 1.05vw, 14px);
  height: clamp(8px, 1.05vw, 14px);
  content: "";
  background: #f59a00;
}

.battery-architecture__line--can {
  left: 16.48%;
  top: 12.24%;
  width: 13.11%;
  height: 2px;
}

.battery-architecture__line--can::after {
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.battery-architecture__line--battery-horizontal {
  left: 16.48%;
  top: 40.51%;
  width: 6.44%;
  height: 2px;
}

.battery-architecture__line--battery-horizontal::after {
  display: none;
}

.battery-architecture__line--battery-vertical {
  left: 22.92%;
  top: 12.24%;
  width: 2px;
  height: 28.27%;
}

.battery-architecture__line--battery-vertical::after {
  display: none;
}

.battery-architecture__line--tcu-cloud {
  left: 61.05%;
  top: 25.7%;
  width: 13.48%;
  height: 2px;
}

.battery-architecture__line--tcu-cloud::after {
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.battery-architecture__line--cloud-bridge {
  left: 22.92%;
  top: 56.3%;
  width: 64.35%;
  height: 2px;
}

.battery-architecture__line--cloud-bridge::after {
  display: none;
}

.battery-architecture__line--cloud-web,
.battery-architecture__line--cloud-mobile {
  width: 2px;
}

.battery-architecture__line--cloud-web {
  left: 22.92%;
  top: 56.3%;
  height: 11.88%;
}

.battery-architecture__line--cloud-mobile {
  left: 87.27%;
  top: 51.41%;
  height: 16.77%;
}

.battery-architecture__line--cloud-web::after,
.battery-architecture__line--cloud-mobile::after {
  left: 50%;
  bottom: -1px;
  transform: translate(-50%, 50%);
  clip-path: polygon(0 0, 50% 100%, 100% 0);
}

.battery-architecture__label {
  position: absolute;
  z-index: 3;
  min-width: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: clamp(4px, 0.7vw, 9px);
  color: #8f8f8f;
  font-size: clamp(8px, 0.9vw, 12px);
  line-height: 1.25;
  letter-spacing: 0;
  text-align: left;
  overflow-wrap: anywhere;
}

.battery-architecture__label::before {
  width: clamp(10px, 1.35vw, 18px);
  height: clamp(11px, 1.42vw, 19px);
  flex: 0 0 auto;
  content: "";
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.battery-architecture__label--can {
  left: 19.78%;
  top: 8.45%;
  width: 9.81%;
  max-width: 96px;
}

.battery-architecture__label--can::before {
  background-image: url("./assets/battery-monitor/architecture-icon-can.svg");
}

.battery-architecture__label--tcu-network {
  left: 63.67%;
  top: 20.81%;
  width: 10.86%;
  max-width: 128px;
}

.battery-architecture__label--tcu-network::before,
.battery-architecture__label--mobile-network::before {
  background-image: url("./assets/battery-monitor/architecture-icon-cellular.svg");
}

.battery-architecture__label--wan {
  left: 11.98%;
  top: 60.59%;
  width: 10.94%;
  max-width: 130px;
}

.battery-architecture__label--wan::before {
  background-image: url("./assets/battery-monitor/architecture-icon-wan.svg");
}

.battery-architecture__label--mobile-network {
  right: 12.73%;
  left: auto;
  top: 60.59%;
  width: 11.24%;
  max-width: 130px;
}

.battery-functions {
  position: relative;
  padding: 80px 0 85px;
  background: #f2f9ff;
}

.battery-section-heading {
  text-align: center;
  color: #2f3548;
}

.battery-functions > .container > .battery-section-heading {
  margin: 85px 0 40px;
}

.battery-section-heading p {
  margin: 28px auto 0;
  max-width: 560px;
  color: #2f3548;
  font-size: 16px;
  line-height: 24px;
  letter-spacing: 0.2em;
}

.battery-territory {
  width: 100vw;
  height: 601px;
  margin: 40px 0 0 calc(50% - 50vw);
  display: flex;
  align-items: center;
  background: url("./assets/battery-monitor/territory-bg.png") center / cover no-repeat;
}

.battery-territory > div {
  width: min(1200px, calc(100vw - 48px));
  margin: 0 auto;
  padding-left: 0;
}

.battery-territory h3 {
  font-weight: 500;
}

.battery-territory span {
  margin-top: 20px;
}

.battery-territory p {
  margin: 25px 0 0;
  max-width: 519px;
  color: #545454;
  font-size: 20px;
  line-height: 32px;
  letter-spacing: 0.2em;
}

.battery-feature-list {
  display: grid;
  gap: 40px;
  margin-top: 0;
  padding: 0;
}

.battery-feature {
  height: auto;
  min-height: 240px;
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  align-items: center;
  gap: 60px;
  padding: 52px 60px;
  background: #f9fcff;
  border-radius: 12px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
}

.battery-feature img {
  width: 120px;
  height: 110px;
  object-fit: contain;
}

.battery-feature h3 {
  margin: 0 0 10px;
  color: #2f3548;
  font-size: 28px;
  line-height: 42px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.battery-feature p,
.battery-feature li {
  color: #545454;
  font-size: 20px;
  line-height: 42px;
  letter-spacing: 0.08em;
}

.battery-feature p {
  margin: 0;
}

.battery-feature p::before {
  content: "· ";
  color: #2085f9;
  font-weight: 800;
}

.battery-feature ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.battery-feature li::before {
  content: "· ";
  color: #2085f9;
  font-weight: 800;
}

.battery-feature--large {
  min-height: 409px;
}

.battery-feature p::before,
.battery-feature li::before {
  content: "・";
}

@media (max-width: 1200px) {
  .battery-intro {
    min-height: 0;
    padding: 72px 0;
  }

  .battery-intro__inner {
    min-height: 0;
    padding: 0;
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;
  }

  .battery-intro__copy,
  .battery-intro__visual {
    max-width: none;
  }

  .battery-intro__visual {
    justify-self: center;
  }

  .battery-intro__visual img {
    width: min(680px, 100%);
  }
}

.battery-hardware {
  padding: 0 0 165px;
  background: #f2f9ff;
}

.battery-hardware-table {
  position: relative;
  height: auto;
  margin-top: 40px;
  overflow: hidden;
  border-radius: 12px;
  background: #f7fbff;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
}

.battery-hardware-table__logo {
  position: absolute;
  right: 72px;
  bottom: 70px;
  width: 284px;
  opacity: 0.05;
  pointer-events: none;
}

.battery-table-row {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 112px 168px minmax(0, 1fr);
  min-height: 48px;
  border-bottom: 1px solid rgba(67, 164, 255, 0.24);
}

.battery-table-row > div {
  display: flex;
  align-items: center;
  min-width: 0;
  padding: 0 18px;
  color: #6c707d;
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.2em;
  overflow-wrap: anywhere;
}

.battery-table-row > div:first-child {
  justify-content: center;
  padding: 0;
  background: #43a4ff;
  box-shadow: inset -1px 0 rgba(255, 255, 255, 0.24);
  color: #fff;
  font-size: 18px;
  letter-spacing: 0;
}

.battery-table-row > div:nth-child(2) {
  border-right: 1px solid rgba(67, 164, 255, 0.24);
  color: #2f3548;
}

.battery-table-head {
  min-height: 84px;
  background: #43a4ff;
}

.battery-table-row.battery-table-head {
  border-bottom: 1px solid #fff;
}

.battery-table-row.battery-table-head > div:not(:last-child) {
  border-right: 1px solid #fff;
  box-shadow: none;
}

.battery-table-head > div {
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 500;
  line-height: 24px;
  letter-spacing: 0.08em;
}

.battery-table-head > div:first-child {
  border-radius: 12px 0 0 0;
}

.battery-table-head > div:nth-child(2) {
  border-right-color: rgba(255, 255, 255, 0.32);
  color: #fff;
}

.battery-table-body .battery-table-row:last-child {
  min-height: 84px;
  border-bottom: 0;
}

.battery-table-body .battery-table-row:last-child > div:first-child {
  border-radius: 0 0 0 12px;
}

.battery-reliability {
  --reliability-visual-height: clamp(560px, 39.6875vw, 762px);
  --reliability-heading-height: clamp(220px, 13.55vw, 260px);
  --reliability-heading-top: calc((var(--reliability-visual-height) - var(--reliability-heading-height)) / 2);
  --reliability-grid-offset: clamp(88px, 6.05vw, 116px);
  position: relative;
  padding: var(--reliability-heading-top) 0 clamp(100px, 6.25vw, 120px);
  overflow: hidden;
  background: #edf7ff;
}

.battery-reliability::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 50%;
  width: min(100vw, 1920px);
  height: var(--reliability-visual-height);
  transform: translateX(-50%);
  background: url("./assets/battery-monitor/reliability-visual-bg.png") center top / cover no-repeat;
  pointer-events: none;
}

.battery-reliability > .container {
  position: relative;
  z-index: 1;
}

.battery-section-heading--glass {
  width: min(580px, calc(100vw - 48px));
  min-height: var(--reliability-heading-height);
  margin: 0 auto calc(var(--reliability-visual-height) - var(--reliability-heading-top) - var(--reliability-heading-height) + var(--reliability-grid-offset));
  display: grid;
  place-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(4px);
}

.battery-test-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 48px;
  gap: 74px 64px;
}

.battery-test-card {
  min-height: 241px;
  display: grid;
  justify-items: center;
  align-content: start;
  text-align: center;
  color: #2f3548;
}

.battery-test-card img {
  width: 120px;
  height: 120px;
  object-fit: contain;
}

.battery-test-card h3 {
  margin: 10px 0 14px;
  font-size: 24px;
  line-height: 29px;
  font-weight: 400;
}

.battery-test-card p {
  margin: 0;
  max-width: 270px;
  font-size: 16px;
  line-height: 32px;
}

.battery-monitor-page .reveal {
  opacity: 1;
  transform: translateY(0);
}

.battery-monitor-page.js-enabled .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.battery-monitor-page.js-enabled .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .battery-intro {
    padding: 72px 0;
    min-height: 0;
  }

  .battery-intro__inner {
    min-height: 0;
    padding: 0;
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;
  }

  .battery-intro__copy,
  .battery-intro__visual {
    max-width: none;
  }

  .battery-intro__visual img {
    width: min(480px, 100%);
  }

  .battery-territory > div {
    padding-left: 0;
  }

  .battery-feature {
    gap: 36px;
    padding: 42px;
  }

  .battery-reliability {
    --reliability-visual-height: clamp(620px, 70vw, 730px);
    --reliability-heading-height: 220px;
    --reliability-heading-top: calc((var(--reliability-visual-height) - var(--reliability-heading-height)) / 2);
    --reliability-grid-offset: 72px;
    padding-bottom: 112px;
  }

  .battery-section-heading--glass {
    width: min(620px, 100%);
    min-height: var(--reliability-heading-height);
    padding: 28px;
    background: rgba(255, 255, 255, 0.84);
  }

  .battery-test-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
    margin-top: 0;
    gap: 28px;
  }

  .battery-test-card {
    min-height: 244px;
    padding: 0 10px;
  }

  .battery-test-card img {
    width: 96px;
    height: 96px;
  }

  .battery-test-card h3 {
    margin: 14px 0 10px;
    font-size: 20px;
    line-height: 1.35;
  }

  .battery-test-card p {
    max-width: 100%;
    font-size: 14px;
    line-height: 1.65;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 780px) {
  .battery-hero,
  .battery-hero__inner {
    height: 320px;
  }

  .battery-hero h1 {
    font-size: 28px;
  }

  .battery-hero span {
    max-width: 340px;
    letter-spacing: 0.08em;
  }

  .battery-functions,
  .battery-hardware {
    padding-top: 56px;
  }

  .battery-functions > .container > .battery-section-heading {
    margin: 56px 0 38px;
  }

  .battery-hardware {
    padding-bottom: 80px;
  }

  .battery-territory {
    height: auto;
    min-height: 420px;
    margin-top: 38px;
    padding: 44px 0;
  }

  .battery-territory p {
    font-size: 16px;
    line-height: 1.8;
    letter-spacing: 0.08em;
  }

  .battery-feature {
    height: auto;
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 20px;
    padding: 34px 24px;
  }

  .battery-feature h3 {
    font-size: 22px;
    line-height: 1.4;
  }

  .battery-feature p,
  .battery-feature li {
    font-size: 16px;
    line-height: 1.75;
    letter-spacing: 0.04em;
  }

  .battery-feature ul {
    text-align: left;
  }

  .battery-hardware-table {
    height: auto;
  }

  .battery-table-row,
  .battery-table-head {
    grid-template-columns: 70px 110px minmax(0, 1fr);
  }

  .battery-table-row > div {
    padding: 10px 12px;
    font-size: 12px;
    letter-spacing: 0.04em;
  }

  .battery-table-row > div:first-child,
  .battery-table-head > div {
    font-size: 14px;
  }

  .battery-hardware-table__logo {
    width: 180px;
    right: 24px;
    bottom: 24px;
  }

  .battery-reliability {
    --reliability-visual-height: clamp(430px, 84vw, 620px);
    --reliability-heading-height: 172px;
    --reliability-heading-top: calc((var(--reliability-visual-height) - var(--reliability-heading-height)) / 2);
    --reliability-grid-offset: 28px;
    padding-bottom: 104px;
  }

  .battery-section-heading--glass {
    width: 100%;
    min-height: var(--reliability-heading-height);
    padding: 26px 18px;
    background: rgba(255, 255, 255, 0.84);
  }

  .battery-test-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
    margin-top: 0;
    gap: 18px;
  }

  .battery-test-card {
    min-height: 218px;
    padding: 20px 12px 18px;
    border: 1px solid rgba(147, 190, 239, 0.35);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 10px 24px rgba(39, 94, 150, 0.08);
  }

  .battery-test-card img {
    width: 88px;
    height: 88px;
  }

  .battery-test-card h3 {
    margin: 12px 0 8px;
    font-size: 18px;
    line-height: 1.35;
  }

  .battery-test-card p {
    max-width: 100%;
    color: #2f3548;
    font-size: 13px;
    line-height: 1.55;
    overflow-wrap: anywhere;
  }

}

/* Authoritative responsive architecture. Keep this block last so legacy desktop
   geometry cannot override the compact flow. */
@media (max-width: 1199px) {
  .battery-architecture-section {
    padding: 44px 16px 56px;
  }

  .battery-architecture {
    position: relative;
    width: min(820px, 100%);
    height: auto;
    aspect-ratio: auto;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: 210px 116px 250px 116px 250px 128px 210px;
    column-gap: 28px;
    overflow: visible;
  }

  .battery-architecture > .battery-architecture__card,
  .battery-architecture > .battery-architecture__line,
  .battery-architecture > .battery-architecture__label {
    position: relative;
    inset: auto;
    transform: none;
  }

  .battery-architecture > .battery-architecture__card {
    z-index: 3;
    width: min(250px, 100%);
    height: 100%;
    justify-self: center;
    overflow: hidden;
    border-radius: 8px;
  }

  .battery-architecture__card--rickshaw { grid-area: 1 / 1; }
  .battery-architecture__card--battery { grid-area: 1 / 2; }
  .battery-architecture__card--tcu {
    grid-area: 3 / 1 / 4 / 3;
    width: min(300px, 74vw);
  }
  .battery-architecture__card--cloud {
    grid-area: 5 / 1 / 6 / 3;
    width: min(300px, 74vw);
  }
  .battery-architecture__card--web { grid-area: 7 / 1; }
  .battery-architecture__card--mobile { grid-area: 7 / 2; }

  .battery-architecture__card h3,
  .battery-architecture__card--mobile h3 {
    position: absolute;
    inset: auto 8px 15px;
    margin: 0;
    font-size: 15px;
    line-height: 1.3;
    white-space: normal;
    overflow-wrap: normal;
  }

  .battery-architecture__card--rickshaw img,
  .battery-architecture__card--battery img,
  .battery-architecture__card--tcu img,
  .battery-architecture__card--web img {
    position: absolute;
    inset: auto;
    object-fit: contain;
  }

  .battery-architecture__card--rickshaw img {
    top: 18px;
    left: 14%;
    width: 72%;
    height: 132px;
  }
  .battery-architecture__card--battery img {
    top: 22px;
    left: 34%;
    width: 32%;
    height: 124px;
  }
  .battery-architecture__card--tcu img {
    top: 34px;
    left: 10%;
    width: 80%;
    height: 146px;
  }
  .battery-architecture__cloud-content {
    position: absolute;
    inset: 0;
  }
  .battery-architecture__cloud-content img {
    position: absolute;
    top: 30px;
    left: 16%;
    width: 68%;
    height: 150px;
    object-fit: contain;
  }
  .battery-architecture__card--web img {
    top: 22px;
    left: 9%;
    width: 82%;
    height: 132px;
  }
  .battery-architecture__phones {
    position: absolute;
    top: 22px;
    left: 23%;
    width: 54%;
    height: 130px;
    margin: 0;
  }
  .battery-architecture__phones img {
    position: static;
    width: 47.5%;
    height: 100%;
    object-fit: contain;
  }

  .battery-architecture > .battery-architecture__line {
    z-index: 2;
    min-width: 0;
    min-height: 0;
    margin: 0;
    background: #f59a00;
  }
  .battery-architecture__line::before,
  .battery-architecture__line::after {
    display: none;
    content: none;
  }

  .battery-architecture__line--can,
  .battery-architecture__line--battery-horizontal {
    grid-row: 2;
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 58px;
  }
  .battery-architecture__line--can { grid-column: 1; }
  .battery-architecture__line--battery-horizontal { grid-column: 2; }
  .battery-architecture__line--battery-vertical {
    grid-area: 2 / 1 / 3 / 3;
    align-self: center;
    justify-self: center;
    width: calc(50% + 14px);
    height: 2px;
  }
  .battery-architecture__line--cloud-bridge {
    grid-area: 2 / 1 / 3 / 3;
    align-self: end;
    justify-self: center;
    width: 2px;
    height: 58px;
  }
  .battery-architecture__line--tcu-cloud {
    grid-area: 4 / 1 / 5 / 3;
    align-self: stretch;
    justify-self: center;
    width: 2px;
    height: 116px;
  }
  .battery-architecture__line--cloud-bridge::after,
  .battery-architecture__line--tcu-cloud::after {
    position: absolute;
    right: auto;
    bottom: -1px;
    left: 50%;
    top: auto;
    display: block;
    width: 14px;
    height: 14px;
    content: "";
    background: #f59a00;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    transform: translateX(-50%);
  }

  .battery-architecture__line--cloud-web {
    grid-area: 6 / 1 / 7 / 3;
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 65px;
  }
  .battery-architecture > .battery-architecture__line--cloud-mobile {
    grid-area: 6 / 1 / 7 / 3;
    align-self: start;
    justify-self: center;
    width: calc(50% + 14px);
    height: 2px;
    margin-top: 63px;
  }
  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    position: absolute;
    top: 0;
    display: block;
    width: 14px;
    min-width: 0;
    max-width: none;
    height: 65px;
    content: "";
    background: #f59a00;
    clip-path: polygon(43% 0, 57% 0, 57% 72%, 100% 72%, 50% 100%, 0 72%, 43% 72%);
  }
  .battery-architecture__line--cloud-mobile::before {
    left: 0;
    transform: translateX(-50%);
  }
  .battery-architecture__line--cloud-mobile::after {
    right: 0;
    left: auto;
    transform: translateX(50%);
  }

  .battery-architecture > .battery-architecture__label {
    z-index: 5;
    width: max-content;
    max-width: 180px;
    margin: 0;
    padding: 4px 8px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 4px;
    background: rgba(242, 249, 255, 0.94);
    color: #666;
    font-size: 12px;
    line-height: 1.35;
    text-align: center;
  }
  .battery-architecture__label > img {
    width: 16px;
    height: 17px;
    flex: 0 0 auto;
  }
  .battery-architecture__label--can {
    grid-area: 2 / 1;
    align-self: start;
    justify-self: start;
    margin: 14px 0 0 26px;
  }
  .battery-architecture__label--tcu-network {
    grid-area: 4 / 2;
    align-self: center;
    justify-self: end;
    margin-right: 24px;
  }
  .battery-architecture__label--wan {
    grid-area: 6 / 1;
    align-self: start;
    justify-self: start;
    margin: 12px 0 0 28px;
  }
  .battery-architecture__label--mobile-network {
    grid-area: 6 / 2;
    align-self: start;
    justify-self: end;
    margin: 12px 28px 0 0;
  }
}

@media (max-width: 600px) {
  .battery-architecture-section {
    padding: 32px 12px 44px;
  }
  .battery-architecture {
    grid-template-rows: 180px 96px 220px 96px 220px 112px 180px;
    column-gap: 14px;
  }
  .battery-architecture > .battery-architecture__card {
    width: 100%;
  }
  .battery-architecture__card--tcu,
  .battery-architecture__card--cloud {
    width: min(270px, 76vw);
  }
  .battery-architecture__card h3,
  .battery-architecture__card--mobile h3 {
    inset: auto 5px 11px;
    font-size: 11px;
  }
  .battery-architecture__card--rickshaw img,
  .battery-architecture__card--web img { height: 110px; }
  .battery-architecture__card--battery img { height: 102px; }
  .battery-architecture__card--tcu img,
  .battery-architecture__cloud-content img { height: 126px; }
  .battery-architecture__phones { height: 108px; }

  .battery-architecture__line--can,
  .battery-architecture__line--battery-horizontal,
  .battery-architecture__line--cloud-bridge { height: 48px; }
  .battery-architecture__line--battery-vertical,
  .battery-architecture__line--cloud-mobile { width: calc(50% + 7px); }
  .battery-architecture__line--tcu-cloud { height: 96px; }
  .battery-architecture__line--cloud-web { height: 57px; }
  .battery-architecture > .battery-architecture__line--cloud-mobile { margin-top: 55px; }
  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after { height: 57px; }

  .battery-architecture > .battery-architecture__label {
    max-width: 130px;
    padding: 3px 5px;
    gap: 4px;
    font-size: 9px;
  }
  .battery-architecture__label > img {
    width: 12px;
    height: 13px;
  }
  .battery-architecture__label--can { margin: 9px 0 0 8px; }
  .battery-architecture__label--tcu-network { margin-right: 8px; }
  .battery-architecture__label--wan { margin: 7px 0 0 6px; }
  .battery-architecture__label--mobile-network { margin: 7px 6px 0 0; }
}

@media (max-width: 1199px) {
  .battery-architecture > .battery-architecture__line--cloud-mobile {
    margin-top: 63px;
  }
}

@media (max-width: 600px) {
  .battery-architecture > .battery-architecture__line--cloud-mobile {
    margin-top: 55px;
  }
}

/* Stable compact architecture: switch the desktop map to a readable vertical flow. */
@media (max-width: 1199px) {
  .battery-architecture-section {
    padding: 44px 0 56px;
  }

  .battery-architecture {
    position: relative;
    width: min(820px, 100%);
    height: auto;
    aspect-ratio: auto;
    margin-inline: auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: 210px 104px 250px 104px 250px 120px 210px;
    column-gap: 28px;
    overflow: visible;
  }

  .battery-architecture__card,
  .battery-architecture__line,
  .battery-architecture__label {
    position: relative;
    inset: auto;
    transform: none;
  }

  .battery-architecture__card {
    z-index: 3;
    width: min(250px, 100%);
    height: 100%;
    justify-self: center;
    overflow: hidden;
    border-radius: 8px;
  }

  .battery-architecture__card--rickshaw {
    grid-column: 1;
    grid-row: 1;
  }

  .battery-architecture__card--battery {
    grid-column: 2;
    grid-row: 1;
  }

  .battery-architecture__card--tcu {
    grid-column: 1 / 3;
    grid-row: 3;
    width: min(300px, 74vw);
  }

  .battery-architecture__card--cloud {
    grid-column: 1 / 3;
    grid-row: 5;
    width: min(300px, 74vw);
  }

  .battery-architecture__card--web {
    grid-column: 1;
    grid-row: 7;
  }

  .battery-architecture__card--mobile {
    grid-column: 2;
    grid-row: 7;
  }

  .battery-architecture__card h3,
  .battery-architecture__card--mobile h3 {
    position: absolute;
    right: 10px;
    bottom: 16px;
    left: 10px;
    margin: 0;
    font-size: 15px;
    line-height: 1.3;
    white-space: normal;
    overflow-wrap: normal;
  }

  .battery-architecture__card--rickshaw img,
  .battery-architecture__card--battery img,
  .battery-architecture__card--tcu img,
  .battery-architecture__card--web img {
    position: absolute;
    inset: auto;
    object-fit: contain;
  }

  .battery-architecture__card--rickshaw img {
    top: 18px;
    left: 14%;
    width: 72%;
    height: 132px;
  }

  .battery-architecture__card--battery img {
    top: 22px;
    left: 34%;
    width: 32%;
    height: 124px;
  }

  .battery-architecture__card--tcu img {
    top: 34px;
    left: 10%;
    width: 80%;
    height: 146px;
  }

  .battery-architecture__cloud-content {
    position: absolute;
    inset: 0;
  }

  .battery-architecture__cloud-content img {
    position: absolute;
    top: 30px;
    left: 16%;
    width: 68%;
    height: 150px;
    object-fit: contain;
  }

  .battery-architecture__card--web img {
    top: 22px;
    left: 9%;
    width: 82%;
    height: 132px;
  }

  .battery-architecture__phones {
    position: absolute;
    top: 22px;
    left: 23%;
    width: 54%;
    height: 130px;
    margin: 0;
  }

  .battery-architecture__phones img {
    position: static;
    width: 47.5%;
    height: 100%;
    object-fit: contain;
  }

  .battery-architecture__line {
    z-index: 2;
    min-width: 0;
    min-height: 0;
    margin: 0;
    background: #f59a00;
  }

  .battery-architecture__line--can,
  .battery-architecture__line--battery-horizontal {
    grid-row: 2;
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 52px;
  }

  .battery-architecture__line--can {
    grid-column: 1;
  }

  .battery-architecture__line--battery-horizontal {
    grid-column: 2;
  }

  .battery-architecture__line--can::after,
  .battery-architecture__line--battery-horizontal::after,
  .battery-architecture__line--battery-vertical::after,
  .battery-architecture__line--cloud-web::after {
    display: none;
  }

  .battery-architecture__line--battery-vertical {
    grid-column: 1 / 3;
    grid-row: 2;
    align-self: center;
    justify-self: center;
    width: 50%;
    height: 2px;
  }

  .battery-architecture__line--cloud-bridge {
    grid-column: 1 / 3;
    grid-row: 2;
    align-self: end;
    justify-self: center;
    width: 2px;
    height: 52px;
  }

  .battery-architecture__line--tcu-cloud {
    grid-column: 1 / 3;
    grid-row: 4;
    align-self: stretch;
    justify-self: center;
    width: 2px;
    height: 104px;
  }

  .battery-architecture__line--cloud-bridge::after,
  .battery-architecture__line--tcu-cloud::after {
    position: absolute;
    right: auto;
    bottom: -1px;
    left: 50%;
    top: auto;
    display: block;
    width: 14px;
    height: 14px;
    content: "";
    background: #f59a00;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    transform: translate(-50%, 0);
  }

  .battery-architecture__line--cloud-web {
    grid-column: 1 / 3;
    grid-row: 6;
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 62px;
  }

  .battery-architecture__line--cloud-mobile {
    grid-column: 1 / 3;
    grid-row: 6;
    align-self: start;
    justify-self: center;
    width: calc(50% + 14px);
    height: 2px;
    margin-top: 60px;
  }

  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    position: absolute;
    top: 0;
    width: 14px;
    min-width: 0;
    max-width: none;
    height: 60px;
    content: "";
    background: #f59a00;
    clip-path: polygon(43% 0, 57% 0, 57% 72%, 100% 72%, 50% 100%, 0 72%, 43% 72%);
    transform: translateX(-50%);
  }

  .battery-architecture__line--cloud-mobile::before {
    left: 0;
  }

  .battery-architecture__line--cloud-mobile::after {
    right: 0;
    left: auto;
    transform: translateX(50%);
  }

  .battery-architecture__label {
    z-index: 5;
    width: max-content;
    max-width: 180px;
    margin: 0;
    padding: 4px 8px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 4px;
    background: rgba(242, 249, 255, 0.94);
    color: #777;
    font-size: 12px;
    line-height: 1.35;
    text-align: center;
  }

  .battery-architecture__label > img {
    width: 16px;
    height: 17px;
    flex: 0 0 auto;
  }

  .battery-architecture__label--can {
    grid-column: 1 / 3;
    grid-row: 2;
    align-self: start;
    justify-self: center;
    margin-top: 14px;
    margin-left: 190px;
  }

  .battery-architecture__label--tcu-network {
    grid-column: 1 / 3;
    grid-row: 4;
    align-self: center;
    justify-self: center;
    margin-left: 210px;
  }

  .battery-architecture__label--wan,
  .battery-architecture__label--mobile-network {
    grid-row: 6;
    align-self: start;
    justify-self: center;
    margin-top: 14px;
  }

  .battery-architecture__label--wan {
    grid-column: 1;
  }

  .battery-architecture__label--mobile-network {
    grid-column: 2;
  }
}

@media (max-width: 600px) {
  .battery-architecture-section {
    padding: 32px 0 44px;
  }

  .battery-architecture {
    grid-template-rows: 180px 96px 220px 96px 220px 112px 180px;
    column-gap: 14px;
  }

  .battery-architecture__card {
    width: 100%;
  }

  .battery-architecture__card--tcu,
  .battery-architecture__card--cloud {
    width: min(270px, 76vw);
  }

  .battery-architecture__card h3,
  .battery-architecture__card--mobile h3 {
    right: 6px;
    bottom: 12px;
    left: 6px;
    font-size: 12px;
  }

  .battery-architecture__card--rickshaw img,
  .battery-architecture__card--web img {
    height: 112px;
  }

  .battery-architecture__card--battery img {
    height: 104px;
  }

  .battery-architecture__card--tcu img,
  .battery-architecture__cloud-content img {
    height: 126px;
  }

  .battery-architecture__phones {
    height: 110px;
  }

  .battery-architecture__line--can,
  .battery-architecture__line--battery-horizontal,
  .battery-architecture__line--cloud-bridge {
    height: 48px;
  }

  .battery-architecture__line--tcu-cloud {
    height: 96px;
  }

  .battery-architecture__line--cloud-web {
    height: 58px;
  }

  .battery-architecture__line--cloud-mobile {
    width: calc(50% + 7px);
    margin-top: 56px;
  }

  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    height: 56px;
  }

  .battery-architecture__label {
    max-width: 142px;
    padding-inline: 5px;
    gap: 4px;
    font-size: 10px;
  }

  .battery-architecture__label > img {
    width: 13px;
    height: 14px;
  }

  .battery-architecture__label--can {
    margin-top: 10px;
    margin-left: 126px;
  }

  .battery-architecture__label--tcu-network {
    margin-left: 156px;
  }

  .battery-architecture__label--wan,
  .battery-architecture__label--mobile-network {
    margin-top: 8px;
  }
}

/* Figma 1:2 - final 1200px content rhythm and responsive layout */
.battery-intro {
  position: relative;
  min-height: 597px;
  overflow: hidden;
  isolation: isolate;
  background: url("./assets/battery-monitor/product-introduction-background.png") center / cover no-repeat;
}

.battery-intro::before {
  display: none;
}

.battery-intro__inner {
  position: relative;
  z-index: 1;
  min-height: 597px;
  padding: 78px 0 72px;
  grid-template-columns: minmax(0, 671px) minmax(0, 489px);
  column-gap: 40px;
}

.battery-intro__copy {
  max-width: 671px;
}

.battery-intro__copy span {
  margin-top: 18px;
}

.battery-intro__copy p {
  margin-top: 24px;
  font-size: 20px;
  line-height: 32px;
  letter-spacing: 0.1em;
}

.battery-intro__visual {
  max-width: 489px;
}

.battery-architecture-section {
  padding: 40px 0 0;
}

.battery-architecture {
  aspect-ratio: 1200 / 565;
}

.battery-functions {
  padding: 0 0 80px;
}

.battery-territory {
  margin-top: 0;
}

.battery-functions > .container > .battery-section-heading {
  margin: 42px 0 52px;
}

.battery-section-heading span {
  margin-top: 14px;
}

.battery-feature {
  min-height: 240px;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 30px;
  padding: 44px 50px;
}

.battery-feature--large {
  min-height: 240px;
}

.battery-feature h3 {
  margin-bottom: 8px;
}

.battery-feature p,
.battery-feature li {
  line-height: 32px;
}

.battery-hardware {
  padding-top: 0;
}

@media (max-width: 1200px) {
  .battery-intro,
  .battery-intro__inner {
    min-height: 0;
  }

  .battery-intro__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;
  }

  .battery-intro__copy,
  .battery-intro__visual {
    width: 100%;
    max-width: 780px;
    margin-inline: auto;
    text-align: center;
  }

  .battery-intro__visual {
    display: flex;
    justify-content: center;
  }

  .battery-intro__visual img {
    width: min(640px, 100%);
    margin-inline: auto;
  }

  .battery-intro__copy p {
    text-align: left;
  }

  .battery-intro {
    background: url("./assets/battery-monitor/product-introduction-background.png") center / cover no-repeat;
  }
}

/* Figma 0:1 - standard model hardware table */
.battery-table-row,
.battery-table-head {
  grid-template-columns: 130px 228px minmax(0, 1fr);
}

.battery-table-row {
  min-height: 48px;
}

.battery-table-row > div {
  padding: 9px 20px;
  line-height: 1.75;
}

.battery-table-head {
  min-height: 84px;
}

.battery-table-head > div:nth-child(2),
.battery-table-head > div:nth-child(3) {
  justify-content: flex-start;
  padding-inline: 22px;
}

.battery-table-body .battery-table-row:nth-child(5) {
  min-height: 96px;
}

.battery-table-body .battery-table-row:last-child {
  min-height: 48px;
}

@media (max-width: 780px) {
  .battery-table-row,
  .battery-table-head {
    grid-template-columns: 70px 150px minmax(0, 1fr);
  }

  .battery-table-row > div,
  .battery-table-head > div:nth-child(2),
  .battery-table-head > div:nth-child(3) {
    padding: 9px 12px;
  }

  .battery-table-body .battery-table-row:nth-child(5) {
    min-height: 112px;
  }
}

@media (max-width: 520px) {
  .battery-table-row,
  .battery-table-head {
    grid-template-columns: 54px 96px minmax(0, 1fr);
  }

  .battery-table-row > div,
  .battery-table-head > div:nth-child(2),
  .battery-table-head > div:nth-child(3) {
    padding: 8px;
  }

  .battery-table-body .battery-table-row:nth-child(5) {
    min-height: 150px;
  }
}

/* Architecture spacing refinement */
.battery-architecture__card--rickshaw,
.battery-architecture__card--battery,
.battery-architecture__card--web,
.battery-architecture__card--mobile {
  width: 16%;
}

.battery-architecture__card--web,
.battery-architecture__card--mobile {
  right: 0;
}

.battery-architecture__card--tcu,
.battery-architecture__card--cloud {
  width: 21%;
}

.battery-architecture__card--tcu {
  left: 28%;
}

.battery-architecture__card--cloud {
  left: 57%;
}

.battery-architecture__line--can,
.battery-architecture__line--battery-horizontal {
  left: 16%;
  width: 7.5%;
}

.battery-architecture__line--battery-vertical,
.battery-architecture__line--cloud-bridge {
  left: 23.5%;
}

.battery-architecture__line--cloud-bridge {
  width: 4.5%;
}

.battery-architecture__line--tcu-cloud {
  left: 49%;
  width: 8%;
}

.battery-architecture__line--cloud-web {
  left: 78%;
  width: 4%;
}

.battery-architecture__line--cloud-mobile {
  left: 82%;
}

.battery-architecture__line--cloud-mobile::before,
.battery-architecture__line--cloud-mobile::after {
  left: 0;
  width: clamp(12px, 2vw, 24px);
  height: clamp(7px, 0.75vw, 10px);
  clip-path: polygon(0 40%, 70% 40%, 70% 0, 100% 50%, 70% 100%, 70% 60%, 0 60%);
}

.battery-architecture__label--can {
  left: 17.7%;
  top: 18.5%;
  width: 9.5%;
}

.battery-architecture__label--tcu-network {
  left: 50.3%;
  top: 33.5%;
  width: 6.7%;
}

.battery-architecture__label--wan {
  right: 17.8%;
  top: 10.5%;
  width: 13.5%;
}

.battery-architecture__label--mobile-network {
  right: 17.8%;
  top: 78.5%;
  width: 13.5%;
}

@media (max-width: 780px) {
  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    width: clamp(7px, 2vw, 14px);
    height: 6px;
  }

  .battery-architecture__label--wan,
  .battery-architecture__label--mobile-network {
    width: 13.5%;
  }
}

/* Exact Figma architecture proportions. */
.battery-architecture__card--rickshaw,
.battery-architecture__card--battery,
.battery-architecture__card--web,
.battery-architecture__card--mobile {
  width: 16%;
}

.battery-architecture__card--tcu,
.battery-architecture__card--cloud {
  width: 17.2%;
  height: 50.6%;
}

.battery-architecture__card--tcu {
  left: 27.1%;
}

.battery-architecture__card--cloud {
  left: 53.1%;
}

.battery-architecture__card h3 {
  right: 5%;
  bottom: 7%;
  left: 5%;
  font-size: clamp(8px, 1vw, 15px);
  line-height: 1.35;
}

.battery-architecture__card--tcu img {
  top: 23%;
  left: 9%;
  width: 82%;
  height: 42%;
}

.battery-architecture__cloud-content img {
  top: 19%;
  left: 12%;
  width: 76%;
  height: 44%;
}

.battery-architecture__line--can,
.battery-architecture__line--battery-horizontal {
  left: 16%;
  width: 8%;
}

.battery-architecture__line--battery-vertical,
.battery-architecture__line--cloud-bridge {
  left: 24%;
}

.battery-architecture__line--cloud-bridge {
  width: 3.1%;
}

.battery-architecture__line--tcu-cloud {
  left: 44.3%;
  width: 8.8%;
}

.battery-architecture__line--cloud-web {
  left: 70.3%;
  width: 5.2%;
}

.battery-architecture__line--cloud-mobile {
  left: 75.5%;
}

.battery-architecture__line--cloud-mobile::before,
.battery-architecture__line--cloud-mobile::after {
  width: clamp(26px, 8.5vw, 102px);
  height: clamp(6px, 0.7vw, 9px);
}

.battery-architecture__label--can {
  left: 17.3%;
  top: 18.2%;
  width: 9.5%;
}

.battery-architecture__label--tcu-network {
  left: 45.4%;
  top: 32.7%;
  width: 7.7%;
  justify-content: center;
  text-align: center;
}

.battery-architecture__label--wan {
  right: 16%;
  left: auto;
  top: 10.8%;
  width: 14%;
  justify-content: center;
  text-align: center;
}

.battery-architecture__label--mobile-network {
  right: 16%;
  left: auto;
  top: 76.7%;
  width: 14%;
  justify-content: center;
  text-align: center;
}

@media (max-width: 780px) {
  .battery-architecture__card h3 {
    font-size: clamp(5px, 1vw, 8px);
  }

  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    width: clamp(22px, 8.5vw, 64px);
    height: 6px;
  }

  .battery-architecture__label--wan,
  .battery-architecture__label--mobile-network {
    width: 14%;
  }
}

@media (max-width: 780px) {
  .battery-intro__copy p {
    font-size: 16px;
    line-height: 1.8;
    letter-spacing: 0.05em;
  }

  .battery-architecture {
    min-width: 0;
  }

  .battery-feature {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 18px;
    padding: 32px 24px;
    text-align: center;
  }

  .battery-feature ul {
    text-align: left;
  }
}

@media (max-width: 520px) {
  .battery-hero__inner {
    width: 100%;
    padding-inline: 18px;
  }

  .battery-hero h1,
  .battery-hero p,
  .battery-hero span {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .battery-hero h1 {
    font-size: 24px;
    line-height: 1.35;
  }

  .battery-hero span {
    font-size: 14px;
    letter-spacing: 0.08em;
  }

  .battery-intro__copy p,
  .battery-territory p {
    font-size: 15px;
  }

  .battery-table-row,
  .battery-table-head {
    grid-template-columns: 54px 88px minmax(0, 1fr);
  }

  .battery-test-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .battery-test-card {
    min-height: auto;
    padding: 22px 18px;
  }
}

/* Figma 0:1 - horizontal system architecture */
.battery-architecture-section {
  padding: 40px 0 0;
}

.battery-architecture {
  aspect-ratio: 1200 / 565;
}

.battery-architecture__card {
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(26, 54, 89, 0.06);
}

.battery-architecture__card--rickshaw,
.battery-architecture__card--battery,
.battery-architecture__card--web,
.battery-architecture__card--mobile {
  width: 16.67%;
  height: 37.7%;
}

.battery-architecture__card--rickshaw,
.battery-architecture__card--battery {
  left: 0;
}

.battery-architecture__card--web,
.battery-architecture__card--mobile {
  left: auto;
  right: 0;
}

.battery-architecture__card--rickshaw,
.battery-architecture__card--web {
  top: 10.97%;
}

.battery-architecture__card--battery,
.battery-architecture__card--mobile {
  top: 52.57%;
}

.battery-architecture__card--tcu,
.battery-architecture__card--cloud {
  top: 23.89%;
  width: 21.67%;
  height: 50.62%;
}

.battery-architecture__card--tcu {
  left: 28%;
}

.battery-architecture__card--cloud {
  left: 59%;
}

.battery-architecture__card h3 {
  right: 5%;
  bottom: 10.5%;
  left: 5%;
  font-size: clamp(8px, 1.28vw, 18px);
  line-height: 1.25;
  font-weight: 500;
}

.battery-architecture__card--rickshaw img {
  top: 15%;
  left: 14%;
  width: 72%;
  height: 51%;
}

.battery-architecture__card--battery img {
  top: 15%;
  left: 34%;
  width: 32%;
  height: 48%;
}

.battery-architecture__card--tcu img {
  top: 22%;
  left: 13%;
  width: 74%;
  height: 43%;
}

.battery-architecture__cloud-content img {
  top: 18%;
  left: 19%;
  width: 62%;
  height: 45%;
}

.battery-architecture__card--web img {
  top: 17%;
  left: 14%;
  width: 72%;
  height: 49%;
}

.battery-architecture__phones {
  top: 17%;
  left: 25%;
  width: 50%;
  height: 49%;
}

.battery-architecture__line {
  height: 2px;
}

.battery-architecture__line--can {
  left: 16.67%;
  top: 29.82%;
  width: 7.16%;
}

.battery-architecture__line--can::after,
.battery-architecture__line--battery-horizontal::after {
  right: auto;
  left: 0;
  top: 50%;
  display: block;
  transform: translateY(-50%);
  clip-path: polygon(100% 0, 0 50%, 100% 100%);
}

.battery-architecture__line--battery-horizontal {
  left: 16.67%;
  top: 71.42%;
  width: 7.16%;
}

.battery-architecture__line--battery-vertical {
  left: 23.75%;
  top: 29.82%;
  width: 2px;
  height: 41.6%;
}

.battery-architecture__line--battery-vertical::after {
  display: none;
}

.battery-architecture__line--cloud-bridge {
  left: 23.75%;
  top: 49.2%;
  width: 4.25%;
}

.battery-architecture__line--cloud-bridge::after,
.battery-architecture__line--tcu-cloud::after {
  right: 0;
  left: auto;
  top: 50%;
  display: block;
  transform: translateY(-50%);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.battery-architecture__line--tcu-cloud {
  left: 49.67%;
  top: 49.2%;
  width: 9.33%;
}

.battery-architecture__line--cloud-web {
  left: 80.67%;
  top: 49.2%;
  width: 2.83%;
}

.battery-architecture__line--cloud-web::after {
  right: auto;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  clip-path: polygon(100% 0, 0 50%, 100% 100%);
}

.battery-architecture__line--cloud-mobile {
  left: 83.42%;
  top: 29.82%;
  width: 2px;
  height: 41.6%;
}

.battery-architecture__line--cloud-mobile::before,
.battery-architecture__line--cloud-mobile::after {
  position: absolute;
  left: 0;
  width: clamp(8px, 0.58vw, 10px);
  height: clamp(8px, 0.58vw, 10px);
  content: "";
  background: #f59a00;
  clip-path: polygon(0 0, 100% 50%, 0 100%);
  transform: translateY(-50%);
}

.battery-architecture__line--cloud-mobile::before {
  top: 0;
}

.battery-architecture__line--cloud-mobile::after {
  top: 100%;
  bottom: auto;
}

.battery-architecture__label {
  color: #222;
  font-size: clamp(6px, 0.72vw, 11px);
  line-height: 1.2;
}

.battery-architecture__label--can {
  left: 18.4%;
  top: 20.7%;
  width: 8.2%;
}

.battery-architecture__label--tcu-network {
  left: 51.5%;
  top: 34.4%;
  width: 7.5%;
}

.battery-architecture__label--wan {
  right: 16.9%;
  left: auto;
  top: 16.2%;
  width: 11.5%;
  max-width: none;
  justify-content: flex-end;
  text-align: right;
}

.battery-architecture__label--mobile-network {
  right: 16.9%;
  top: 77%;
  width: 10.5%;
  max-width: none;
  justify-content: flex-end;
  text-align: right;
}

.battery-architecture__card--mobile h3 {
  right: 2%;
  bottom: 8%;
  left: 2%;
  font-size: clamp(5px, 0.95vw, 13px);
  line-height: 1.2;
  white-space: nowrap;
}

@media (max-width: 780px) {
  .battery-architecture-section {
    padding-top: 24px;
  }

  .battery-architecture__card {
    border-radius: 4px;
    box-shadow: 0 3px 9px rgba(26, 54, 89, 0.06);
  }

  .battery-architecture__line {
    height: 1px;
  }

  .battery-architecture__line--battery-vertical,
  .battery-architecture__line--cloud-mobile {
    width: 1px;
  }

  .battery-architecture__card h3 {
    font-size: clamp(5px, 1.32vw, 9px);
  }
}

@media (max-width: 780px) {
  .battery-architecture-section {
    padding: 40px 0 48px;
  }

  .battery-architecture__card--rickshaw img {
    height: 52%;
  }

  .battery-architecture__card--battery img {
    height: 38%;
  }

  .battery-architecture__card {
    border-radius: 5px;
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.05);
  }

  .battery-architecture__card h3 {
    right: 3px;
    bottom: clamp(6px, 2vw, 14px);
    left: 3px;
    font-size: clamp(7px, 1.35vw, 10px);
    line-height: 1.2;
  }

  .battery-architecture__line {
    min-width: 1px;
    min-height: 1px;
  }

  .battery-architecture__line::after {
    width: 7px;
    height: 7px;
  }

  .battery-architecture__label {
    gap: 3px;
    font-size: clamp(5px, 0.9vw, 7px);
    line-height: 1.2;
  }

  .battery-architecture__label::before {
    width: 8px;
    height: 9px;
  }

  .battery-architecture__label--can {
    width: 9.81%;
  }

  .battery-architecture__label--tcu-network {
    width: 10.86%;
  }

  .battery-architecture__label--wan {
    width: 10.94%;
  }

  .battery-architecture__label--mobile-network {
    width: 11.24%;
  }
}

@media (max-width: 780px) {
  .battery-architecture-section {
    padding: 24px 0 30px;
  }

  .battery-architecture__label--wan {
    width: 11.5%;
  }

  .battery-architecture__label--mobile-network {
    width: 10.5%;
  }

  .battery-architecture__card--mobile h3 {
    right: 2%;
    left: 2%;
    font-size: clamp(5px, 0.95vw, 7px);
    line-height: 1.2;
    white-space: nowrap;
  }
}

/* Final architecture geometry: keep labels and arrows in dedicated gaps. */
.battery-architecture__card--rickshaw,
.battery-architecture__card--battery,
.battery-architecture__card--web,
.battery-architecture__card--mobile {
  width: 16%;
}

.battery-architecture__card--web,
.battery-architecture__card--mobile {
  left: auto;
  right: 0;
}

.battery-architecture__card--tcu,
.battery-architecture__card--cloud {
  width: 17.2%;
}

.battery-architecture__card--tcu {
  left: 27.1%;
}

.battery-architecture__card--cloud {
  left: 53.1%;
}

.battery-architecture__card h3 {
  font-size: clamp(7px, 1vw, 15px);
}

.battery-architecture__card--tcu img {
  top: 23%;
  left: 9%;
  width: 82%;
  height: 42%;
}

.battery-architecture__cloud-content img {
  top: 19%;
  left: 12%;
  width: 76%;
  height: 44%;
}

.battery-architecture__line--can,
.battery-architecture__line--battery-horizontal {
  left: 16%;
  width: 8%;
}

.battery-architecture__line--battery-vertical,
.battery-architecture__line--cloud-bridge {
  left: 24%;
}

.battery-architecture__line--cloud-bridge {
  width: 3.1%;
}

.battery-architecture__line--tcu-cloud {
  left: 44.3%;
  width: 8.8%;
}

.battery-architecture__line--cloud-web {
  left: 70.3%;
  width: 5.2%;
}

.battery-architecture__line--cloud-mobile {
  left: 75.5%;
}

.battery-architecture__line--cloud-mobile::before,
.battery-architecture__line--cloud-mobile::after {
  left: 0;
  width: clamp(26px, 8.5vw, 102px);
  height: clamp(7px, 0.75vw, 10px);
  clip-path: polygon(0 42%, 76% 42%, 76% 0, 100% 50%, 76% 100%, 76% 58%, 0 58%);
}

.battery-architecture__label {
  padding-inline: 4px;
  font-size: clamp(7px, 0.78vw, 12px);
  line-height: 1.3;
}

.battery-architecture__label--can {
  left: 17.3%;
  top: 18.2%;
  width: 9.5%;
}

.battery-architecture__label--tcu-network {
  left: 45.4%;
  top: 32.7%;
  width: 7.7%;
  justify-content: center;
  text-align: center;
}

.battery-architecture__label--wan {
  right: 16%;
  left: auto;
  top: 16.5%;
  width: 14%;
  max-width: none;
  justify-content: center;
  text-align: center;
}

.battery-architecture__label--mobile-network {
  right: 16%;
  left: auto;
  top: 77.5%;
  width: 14%;
  max-width: none;
  justify-content: center;
  text-align: center;
}

@media (max-width: 780px) {
  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    width: clamp(22px, 8.5vw, 64px);
    height: 6px;
  }

  .battery-architecture__label--wan,
  .battery-architecture__label--mobile-network {
    width: 14%;
  }
}

/* Figma architecture alignment: labels stack vertically and arrowheads keep their shape. */
.battery-architecture-section {
  padding-top: 0;
  padding-bottom: 0;
}

.battery-architecture__label {
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: clamp(2px, 0.25vw, 4px);
  color: #222;
  font-size: clamp(6px, 0.68vw, 10px);
  line-height: 1.25;
  text-align: center;
}

.battery-architecture__label::before {
  display: none;
}

.battery-architecture__label > img {
  display: block;
  width: clamp(11px, 1.25vw, 16px);
  height: clamp(12px, 1.33vw, 17px);
  flex: 0 0 auto;
  object-fit: contain;
}

.battery-architecture__label > span {
  display: block;
  width: 100%;
}

.battery-architecture__label--can {
  left: 16%;
  top: 15.6%;
  width: 8%;
  max-width: none;
}

.battery-architecture__label--tcu-network {
  left: 44.3%;
  top: 33.2%;
  width: 8.8%;
  max-width: none;
}

.battery-architecture__label--wan {
  right: 16%;
  left: auto;
  top: 15.6%;
  width: 8.5%;
  max-width: none;
}

.battery-architecture__label--mobile-network {
  right: 16%;
  left: auto;
  top: 77.8%;
  width: 8.5%;
  max-width: none;
}

.battery-architecture__label--can,
.battery-architecture__label--tcu-network {
  transform: translateY(40px);
}

.battery-architecture__label--wan {
  transform: translateY(20px);
}

.battery-architecture__label--mobile-network {
  transform: translateY(-20px);
}

.battery-architecture__line--cloud-mobile::before,
.battery-architecture__line--cloud-mobile::after {
  left: 0;
  width: 8.5vw;
  max-width: 102px;
  min-width: 22px;
  height: clamp(7px, 0.7vw, 10px);
  background: #f59a00;
  clip-path: polygon(0 42%, 86% 42%, 86% 0, 100% 50%, 86% 100%, 86% 58%, 0 58%);
}

.battery-architecture__card--mobile h3 {
  right: 3%;
  left: 3%;
  font-size: clamp(6px, 0.88vw, 13px);
  line-height: 1.2;
  white-space: nowrap;
  overflow-wrap: normal;
}

@media (max-width: 780px) {
  .battery-architecture__label {
    gap: 1px;
    font-size: clamp(4px, 0.9vw, 7px);
  }

  .battery-architecture__label > img {
    width: clamp(7px, 1.25vw, 10px);
    height: clamp(8px, 1.33vw, 11px);
  }

  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    width: 8.5vw;
    min-width: 0;
    height: 6px;
  }

}

/* Compact architecture final overrides. */
@media (max-width: 1199px) {
  .battery-architecture-section {
    padding: 44px 16px 56px;
  }

  .battery-architecture {
    width: min(820px, 100%);
    height: auto;
    aspect-ratio: auto;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: 210px 116px 250px 116px 250px 128px 210px;
    column-gap: 28px;
    overflow: visible;
  }

  .battery-architecture > .battery-architecture__card,
  .battery-architecture > .battery-architecture__line,
  .battery-architecture > .battery-architecture__label {
    position: relative;
    inset: auto;
    transform: none;
  }

  .battery-architecture > .battery-architecture__card {
    width: min(250px, 100%);
    height: 100%;
    justify-self: center;
    border-radius: 8px;
  }

  .battery-architecture__card--rickshaw { grid-area: 1 / 1; }
  .battery-architecture__card--battery { grid-area: 1 / 2; }
  .battery-architecture__card--tcu {
    grid-area: 3 / 1 / 4 / 3;
    width: min(300px, 74vw);
  }
  .battery-architecture__card--cloud {
    grid-area: 5 / 1 / 6 / 3;
    width: min(300px, 74vw);
  }
  .battery-architecture__card--web { grid-area: 7 / 1; }
  .battery-architecture__card--mobile { grid-area: 7 / 2; }

  .battery-architecture__card h3,
  .battery-architecture__card--mobile h3 {
    position: absolute;
    inset: auto 8px 15px;
    margin: 0;
    font-size: 15px;
    line-height: 1.3;
    white-space: normal;
    overflow-wrap: normal;
  }

  .battery-architecture__card--rickshaw img,
  .battery-architecture__card--battery img,
  .battery-architecture__card--tcu img,
  .battery-architecture__card--web img {
    position: absolute;
    inset: auto;
    object-fit: contain;
  }
  .battery-architecture__card--rickshaw img {
    top: 18px;
    left: 14%;
    width: 72%;
    height: 132px;
  }
  .battery-architecture__card--battery img {
    top: 22px;
    left: 34%;
    width: 32%;
    height: 124px;
  }
  .battery-architecture__card--tcu img {
    top: 34px;
    left: 10%;
    width: 80%;
    height: 146px;
  }
  .battery-architecture__cloud-content {
    position: absolute;
    inset: 0;
  }
  .battery-architecture__cloud-content img {
    position: absolute;
    top: 30px;
    left: 16%;
    width: 68%;
    height: 150px;
    object-fit: contain;
  }
  .battery-architecture__card--web img {
    top: 22px;
    left: 9%;
    width: 82%;
    height: 132px;
  }
  .battery-architecture__phones {
    position: absolute;
    top: 22px;
    left: 23%;
    width: 54%;
    height: 130px;
    margin: 0;
  }
  .battery-architecture__phones img {
    position: static;
    width: 47.5%;
    height: 100%;
    object-fit: contain;
  }

  .battery-architecture > .battery-architecture__line {
    min-width: 0;
    min-height: 0;
    margin: 0;
    background: #f59a00;
  }
  .battery-architecture__line::before,
  .battery-architecture__line::after {
    display: none;
    content: none;
  }
  .battery-architecture__line--can,
  .battery-architecture__line--battery-horizontal {
    grid-row: 2;
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 58px;
  }
  .battery-architecture__line--can { grid-column: 1; }
  .battery-architecture__line--battery-horizontal { grid-column: 2; }
  .battery-architecture__line--battery-vertical {
    grid-area: 2 / 1 / 3 / 3;
    align-self: center;
    justify-self: center;
    width: calc(50% + 14px);
    height: 2px;
  }
  .battery-architecture__line--cloud-bridge {
    grid-area: 2 / 1 / 3 / 3;
    align-self: end;
    justify-self: center;
    width: 2px;
    height: 58px;
  }
  .battery-architecture__line--tcu-cloud {
    grid-area: 4 / 1 / 5 / 3;
    align-self: stretch;
    justify-self: center;
    width: 2px;
    height: 116px;
  }
  .battery-architecture__line--cloud-bridge::after,
  .battery-architecture__line--tcu-cloud::after {
    position: absolute;
    inset: auto auto -1px 50%;
    display: block;
    width: 14px;
    height: 14px;
    content: "";
    background: #f59a00;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    transform: translateX(-50%);
  }
  .battery-architecture__line--cloud-web {
    grid-area: 6 / 1 / 7 / 3;
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 65px;
  }
  .battery-architecture__line--cloud-mobile {
    grid-area: 6 / 1 / 7 / 3;
    align-self: start;
    justify-self: center;
    width: calc(50% + 14px);
    height: 2px;
    margin-top: 63px;
  }
  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after {
    position: absolute;
    top: 0;
    display: block;
    width: 14px;
    min-width: 0;
    max-width: none;
    height: 65px;
    content: "";
    background: #f59a00;
    clip-path: polygon(43% 0, 57% 0, 57% 72%, 100% 72%, 50% 100%, 0 72%, 43% 72%);
  }
  .battery-architecture__line--cloud-mobile::before {
    left: 0;
    transform: translateX(-50%);
  }
  .battery-architecture__line--cloud-mobile::after {
    right: 0;
    left: auto;
    transform: translateX(50%);
  }

  .battery-architecture > .battery-architecture__label {
    width: max-content;
    max-width: 180px;
    margin: 0;
    padding: 4px 8px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 4px;
    background: rgba(242, 249, 255, 0.94);
    color: #666;
    font-size: 12px;
    line-height: 1.35;
  }
  .battery-architecture__label > img {
    width: 16px;
    height: 17px;
  }
  .battery-architecture__label--can {
    grid-area: 2 / 1;
    align-self: start;
    justify-self: start;
    margin: 14px 0 0 26px;
  }
  .battery-architecture__label--tcu-network {
    grid-area: 4 / 2;
    align-self: center;
    justify-self: end;
    margin-right: 24px;
  }
  .battery-architecture__label--wan {
    grid-area: 6 / 1;
    align-self: start;
    justify-self: start;
    margin: 12px 0 0 28px;
  }
  .battery-architecture__label--mobile-network {
    grid-area: 6 / 2;
    align-self: start;
    justify-self: end;
    margin: 12px 28px 0 0;
  }
}

@media (max-width: 600px) {
  .battery-architecture-section { padding: 32px 12px 44px; }
  .battery-architecture {
    grid-template-rows: 180px 96px 220px 96px 220px 112px 180px;
    column-gap: 14px;
  }
  .battery-architecture > .battery-architecture__card { width: 100%; }
  .battery-architecture__card--tcu,
  .battery-architecture__card--cloud { width: min(270px, 76vw); }
  .battery-architecture__card h3,
  .battery-architecture__card--mobile h3 {
    inset: auto 5px 11px;
    font-size: 11px;
  }
  .battery-architecture__card--rickshaw img,
  .battery-architecture__card--web img { height: 110px; }
  .battery-architecture__card--battery img { height: 102px; }
  .battery-architecture__card--tcu img,
  .battery-architecture__cloud-content img { height: 126px; }
  .battery-architecture__phones { height: 108px; }
  .battery-architecture__line--can,
  .battery-architecture__line--battery-horizontal,
  .battery-architecture__line--cloud-bridge { height: 48px; }
  .battery-architecture__line--battery-vertical,
  .battery-architecture__line--cloud-mobile { width: calc(50% + 7px); }
  .battery-architecture__line--tcu-cloud { height: 96px; }
  .battery-architecture__line--cloud-web { height: 57px; }
  .battery-architecture__line--cloud-mobile { margin-top: 55px; }
  .battery-architecture__line--cloud-mobile::before,
  .battery-architecture__line--cloud-mobile::after { height: 57px; }
  .battery-architecture > .battery-architecture__label {
    max-width: 130px;
    padding: 3px 5px;
    gap: 4px;
    font-size: 9px;
  }
  .battery-architecture__label > img {
    width: 12px;
    height: 13px;
  }
  .battery-architecture__label--can { margin: 9px 0 0 8px; }
  .battery-architecture__label--tcu-network { margin-right: 8px; }
  .battery-architecture__label--wan { margin: 7px 0 0 6px; }
  .battery-architecture__label--mobile-network { margin: 7px 6px 0 0; }
}