:root {
  --ink: #f7fbff;
  --ink-2: #d9e6f7;
  --muted: #9baec8;
  --line: rgba(190, 214, 255, 0.16);
  --soft: #0b1220;
  --soft-2: #101a2b;
  --blue: #244f9f;
  --blue-2: #2f7df6;
  --cyan: #12c7d8;
  --green: #30d158;
  --dark: #05070a;
  --dark-2: #0d1421;
  --white: #ffffff;
  --panel: rgba(8, 15, 28, 0.76);
  --panel-2: rgba(12, 23, 41, 0.82);
  --line-strong: rgba(128, 180, 255, 0.28);
  --radius: 3px;
  --max: 1200px;
  font-family: "Inter", "HarmonyOS Sans", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(128,180,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(128,180,255,0.028) 1px, transparent 1px),
    linear-gradient(180deg, #03070d 0%, #07101c 42%, #03060a 100%);
  background-size: 56px 56px, 56px 56px, auto;
  letter-spacing: 0;
  font-family: "Inter", "HarmonyOS Sans", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(120deg, transparent 0 42%, rgba(18,199,216,0.07) 42% 42.4%, transparent 42.4% 100%),
    linear-gradient(180deg, rgba(47,125,246,0.12), transparent 28%, transparent 72%, rgba(18,199,216,0.08));
}

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

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

figure {
  margin: 0;
}

.visual-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(128, 180, 255, 0.24);
  background: rgba(5, 12, 24, 0.78);
  box-shadow: 0 26px 70px rgba(0,0,0,0.28), inset 0 1px 0 rgba(255,255,255,0.07);
}

.visual-frame::after,
.case-image::after,
.spotlight-visual-inner::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(120deg, rgba(18,199,216,0.16), transparent 26%),
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
  mix-blend-mode: screen;
  opacity: 0.42;
}

.visual-frame img,
.case-image img,
.spotlight-visual-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: minmax(180px, auto) minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 86px;
  padding: 0 clamp(20px, 5vw, 56px);
  background: rgba(3, 7, 13, 0.86);
  border-bottom: 1px solid rgba(128, 180, 255, 0.18);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(22px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
}

.brand img {
  width: 156px;
  height: 42px;
  object-fit: contain;
}

.brand span {
  padding-left: 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  color: rgba(237, 246, 255, 0.78);
  font-size: 14px;
}

.nav a,
.nav-item > a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 28px 0;
  line-height: 1;
  white-space: nowrap;
}

.nav a::after,
.nav-item > a::after {
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--blue-2);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.nav a:hover::after,
.nav-item:hover > a::after {
  transform: scaleX(1);
}

.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.dropdown {
  position: absolute;
  top: calc(100% - 8px);
  left: 50%;
  z-index: 80;
  display: grid;
  min-width: 286px;
  padding: 12px;
  border: 1px solid rgba(190, 214, 255, 0.16);
  border-radius: 4px;
  background:
    linear-gradient(135deg, rgba(47,125,246,0.16), transparent 42%),
    rgba(5, 11, 22, 0.98);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 160ms ease, transform 160ms ease;
  backdrop-filter: blur(22px);
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.dropdown a {
  padding: 12px 14px;
  border-radius: 2px;
  color: rgba(237, 246, 255, 0.82);
  line-height: 1.35;
}

.dropdown a::after {
  display: none;
}

.dropdown a:hover {
  color: var(--white);
  background: rgba(47, 125, 246, 0.16);
}

.nav-item-head {
  display: contents;
}

.nav-disclosure {
  display: none;
}

.header-cta,
.lang-toggle,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  white-space: nowrap;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  justify-self: end;
}

.lang-toggle {
  position: relative;
  gap: 10px;
  min-width: 94px;
  padding: 0 14px;
  color: rgba(237, 246, 255, 0.9);
  border: 0;
  background:
    linear-gradient(90deg, rgba(47,125,246,0.16), rgba(18,199,216,0.08));
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.12),
    0 10px 26px rgba(0, 0, 0, 0.18);
  cursor: pointer;
}

.lang-toggle::before {
  position: absolute;
  inset: 0 50% 0 0;
  z-index: 0;
  content: "";
  background: rgba(255,255,255,0.07);
  transition: transform 180ms ease;
}

body[data-lang="en"] .lang-toggle::before {
  transform: translateX(100%);
}

.lang-option,
.lang-divider {
  position: relative;
  z-index: 1;
}

.lang-option {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.lang-divider {
  width: 1px;
  height: 16px;
  background: rgba(255,255,255,0.14);
}

body[data-lang="zh"] .lang-option-zh,
body[data-lang="en"] .lang-option-en {
  color: var(--white);
  text-shadow: 0 0 12px rgba(128, 180, 255, 0.4);
}

body[data-lang="zh"] .lang-option-en,
body[data-lang="en"] .lang-option-zh {
  color: rgba(237, 246, 255, 0.56);
}

.header-cta,
.btn-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  box-shadow: 0 14px 30px rgba(47, 125, 246, 0.22);
}

.btn-secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
}

.header-cta {
  gap: 10px;
  padding: 0 18px 0 20px;
  border: 0;
  background:
    linear-gradient(135deg, #1b4ea3, #2f7df6 58%, #12c7d8 130%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.16),
    0 16px 36px rgba(47, 125, 246, 0.26);
}

.header-cta-text {
  position: relative;
  top: -0.5px;
}

.header-cta-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 2px;
  background: rgba(255,255,255,0.14);
  font-size: 14px;
  line-height: 1;
}

.header-cta:hover,
.lang-toggle:hover,
.btn:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  border: 0;
  color: var(--white);
  cursor: pointer;
}

.section {
  position: relative;
  padding: 142px clamp(20px, 5vw, 56px);
}

.compact-section {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(rgba(128,180,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(128,180,255,0.028) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(90deg, transparent, black 18%, black 82%, transparent);
}

.section-dark {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(47,125,246,0.16), transparent 38%),
    linear-gradient(180deg, var(--dark), var(--dark-2));
}

.section-muted {
  background:
    linear-gradient(135deg, rgba(18,199,216,0.06), transparent 42%),
    rgba(6, 12, 22, 0.74);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 138px clamp(20px, 5vw, 56px) 118px;
}

.hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 58px;
  max-width: var(--max);
  margin: 0 auto;
}

.eyebrow,
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: #79b1ff;
  font-weight: 800;
  font-size: 13px;
  text-transform: uppercase;
}

.eyebrow > span:first-child {
  width: 28px;
  height: 2px;
  background: var(--cyan);
}

.eyebrow > span:not(:first-child) {
  width: auto;
  height: auto;
  background: transparent;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 30px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.32;
}

h2,
h3 {
  color: var(--ink);
}

p {
  color: var(--muted);
  line-height: 1.86;
}

.section-dark p {
  color: rgba(255, 255, 255, 0.72);
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 34px;
  padding-left: 18px;
  border-left: 2px solid rgba(18, 199, 216, 0.72);
  color: rgba(255, 255, 255, 0.78);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 720px;
}

.tag-row span,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.tag-row span {
  color: rgba(225, 237, 255, 0.82);
  border: 1px solid rgba(128, 180, 255, 0.2);
  border-radius: 0;
  background:
    linear-gradient(90deg, rgba(18,199,216,0.08), transparent),
    rgba(5, 12, 24, 0.68);
}

.pill {
  width: fit-content;
  margin-bottom: 14px;
  color: #cfe2ff;
  border: 1px solid rgba(128, 180, 255, 0.26);
  background: rgba(47, 125, 246, 0.16);
}

.hero-visual {
  min-height: 480px;
  display: grid;
  place-items: center;
}

.hero-image-frame {
  width: min(100%, 560px);
  aspect-ratio: 16 / 11;
}

.chip-board {
  width: min(100%, 520px);
  min-height: 430px;
  padding: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(18,199,216,0.08), transparent 42%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.025));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(255,255,255,0.08);
}

.board-top,
.flow-nodes {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.board-top span {
  color: rgba(255,255,255,0.7);
  font-size: 13px;
}

.board-top strong {
  color: var(--green);
  font-size: 14px;
}

.chip-core {
  position: relative;
  height: 275px;
  margin: 28px 0;
  overflow: hidden;
  border: 1px solid rgba(18, 199, 216, 0.28);
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(47,125,246,0.18), transparent),
    #0b1020;
}

.core-grid {
  position: absolute;
  inset: 16px;
  background-image:
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 18px 18px;
}

.hotspot {
  position: absolute;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(48,209,88,0.9), rgba(47,125,246,0.42) 45%, transparent 72%);
  filter: blur(2px);
}

.hotspot-a {
  top: 42px;
  left: 54px;
}

.hotspot-b {
  right: 64px;
  bottom: 42px;
  background: radial-gradient(circle, rgba(245,166,35,0.9), rgba(47,125,246,0.38) 45%, transparent 72%);
}

.hotspot-c {
  top: 98px;
  right: 164px;
  width: 54px;
  height: 54px;
}

.flow-nodes span {
  flex: 1;
  padding: 11px 8px;
  color: rgba(255,255,255,0.76);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 0;
  background: rgba(255,255,255,0.06);
  text-align: center;
  font-size: 12px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: var(--max);
  margin: -40px auto 0;
  position: relative;
  z-index: 2;
  padding: 0 clamp(20px, 5vw, 56px);
}

.metric {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 172px;
  padding: 34px;
  border: 1px solid rgba(128, 180, 255, 0.2);
  background:
    linear-gradient(90deg, rgba(18,199,216,0.08), transparent 44%),
    rgba(7, 13, 25, 0.9);
  backdrop-filter: blur(18px);
}

.metric + .metric {
  border-left: 0;
}

.metric strong {
  display: block;
  margin-bottom: 12px;
  color: #80b4ff;
  font-size: 34px;
}

.metric span {
  flex: 1;
  color: rgba(225, 237, 255, 0.68);
  line-height: 1.6;
}

.section-heading {
  max-width: 860px;
  margin: 0 auto 64px;
  text-align: center;
}

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

.card-grid {
  display: grid;
  max-width: var(--max);
  margin: 0 auto;
  gap: 28px;
}

.card-grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid.three .card h3 {
  min-height: 58px;
}

.card-grid.three .card p {
  flex: 1;
}

.card {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 38px;
  border: 1px solid rgba(128, 180, 255, 0.18);
  border-top-color: rgba(18, 199, 216, 0.3);
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(18,199,216,0.07), transparent 34%),
    rgba(7, 14, 27, 0.82);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06), 0 18px 48px rgba(0,0,0,0.18);
  backdrop-filter: blur(10px);
}

.card p {
  margin-bottom: 0;
}

.icon-line {
  width: fit-content;
  margin-bottom: 26px;
  color: var(--blue-2);
  font-weight: 900;
  font-size: 13px;
}

.platform-layout,
.about-layout,
.contact-panel,
.product-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: var(--max);
  margin: 0 auto;
  align-items: center;
}

.placeholder-visual,
.product-placeholder,
.case-image {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: 380px;
  padding: 0;
  border: 1px dashed rgba(128, 180, 255, 0.3);
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(18,199,216,0.08), transparent 40%),
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    rgba(5, 12, 24, 0.72);
  background-size: auto, 24px 24px, 24px 24px, auto;
  text-align: center;
}

.placeholder-label,
.product-placeholder div {
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
}

.stack-list {
  display: grid;
  gap: 16px;
}

.stack-list div {
  padding: 22px;
  border: 1px solid rgba(128,180,255,0.18);
  border-left-color: rgba(18,199,216,0.46);
  border-radius: 0;
  background: rgba(7, 14, 27, 0.72);
}

.stack-list span,
.solution-list span {
  color: var(--cyan);
  font-weight: 900;
  font-size: 13px;
}

.stack-list p {
  margin-bottom: 0;
}

.product-feature {
  margin-bottom: 34px;
  padding: 52px;
  border: 1px solid rgba(128, 180, 255, 0.22);
  border-radius: 0;
  background:
    linear-gradient(120deg, rgba(18,199,216,0.12), transparent 36%),
    linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.025));
  box-shadow: 0 26px 70px rgba(0,0,0,0.24);
}

.product-feature h3 {
  font-size: clamp(30px, 4vw, 46px);
}

.product-placeholder {
  color: var(--ink);
  border-color: rgba(128, 180, 255, 0.34);
  background: rgba(5, 12, 24, 0.78);
}

.product-placeholder div {
  color: #dcebff;
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: var(--ink-2);
  font-weight: 700;
}

.check-list li::before {
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  content: "";
  transform: rotate(-45deg);
}

.products-grid {
  grid-template-columns: repeat(4, 1fr);
}

.product-card {
  min-height: 280px;
}

.product-card h3 {
  min-height: 58px;
}

.product-card p {
  flex: 1;
}

.product-card-link {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.product-card-link:hover {
  transform: translateY(-3px);
  border-color: rgba(128, 180, 255, 0.34);
  background:
    linear-gradient(120deg, rgba(18, 199, 216, 0.1), transparent 38%),
    rgba(8, 17, 32, 0.92);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.22);
}

.card-link-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: #9fc4ff;
  font-size: 13px;
  font-weight: 800;
}

.card-link-text::after {
  content: ">";
  transition: transform 180ms ease;
}

.product-card-link:hover .card-link-text::after {
  transform: translateX(3px);
}

.feature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.solution-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: var(--max);
  margin: 0 auto;
  gap: 1px;
  background: rgba(128, 180, 255, 0.16);
  border: 1px solid rgba(128, 180, 255, 0.22);
}

.solution-list article {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 38px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.02)),
    rgba(5, 11, 22, 0.86);
  backdrop-filter: blur(10px);
}

.solution-list h3 {
  min-height: 58px;
}

.solution-list p {
  flex: 1;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: var(--max);
  margin: 0 auto;
  gap: 24px;
}

.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(128, 180, 255, 0.18);
  border-radius: 0;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(18,199,216,0.055), transparent 34%),
    rgba(7, 14, 27, 0.82);
  backdrop-filter: blur(10px);
}

.case-card h3,
.case-card p {
  padding: 0 24px;
}

.case-card p {
  flex: 1;
  padding-bottom: 24px;
  color: rgba(225, 237, 255, 0.68);
}

.case-image {
  min-height: 190px;
  margin-bottom: 24px;
  color: rgba(237,246,255,0.9);
  border: 0;
  border-radius: 0;
  background: rgba(5, 12, 24, 0.78);
  font-weight: 800;
}

.about-card {
  padding: 36px;
  border: 1px solid rgba(128,180,255,0.18);
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(18,199,216,0.08), transparent 36%),
    rgba(7, 14, 27, 0.78);
}

.about-card img {
  width: 230px;
  margin: 0 auto 32px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  filter: drop-shadow(0 16px 30px rgba(47,125,246,0.26));
}

dl,
dd {
  margin: 0;
}

.about-card dl {
  display: grid;
  gap: 22px;
}

.about-card dt {
  margin-bottom: 8px;
  color: var(--cyan);
  font-weight: 800;
}

.about-card dd {
  color: rgba(255,255,255,0.78);
  line-height: 1.7;
}

.contact-panel {
  padding: 60px;
  border-radius: 0;
  background:
    linear-gradient(120deg, rgba(47,125,246,0.14), transparent 38%),
    linear-gradient(180deg, rgba(255,255,255,0.07), rgba(255,255,255,0.025));
  border: 1px solid rgba(128,180,255,0.2);
  color: var(--white);
}

.contact-panel p {
  color: rgba(255,255,255,0.72);
}

.contact-only-section {
  padding-top: 72px;
}

.contact-panel-focused {
  align-items: stretch;
  gap: 42px;
}

.contact-mailbox {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-info {
  display: grid;
  gap: 12px;
  margin-top: 32px;
  color: rgba(255,255,255,0.82);
}

.contact-info a {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(128,180,255,0.16);
  color: rgba(237,246,255,0.76);
}

.contact-info strong {
  color: var(--white);
  font-size: 18px;
  font-weight: 800;
}

.contact-info a:hover strong {
  color: #80b4ff;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 24px;
  border: 1px solid rgba(128,180,255,0.18);
  border-radius: 0;
  background: rgba(5, 11, 22, 0.58);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: rgba(255,255,255,0.82);
  font-size: 13px;
  font-weight: 700;
}

.contact-form .full {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 0;
  background: rgba(3, 9, 18, 0.72);
  color: var(--white);
  font: inherit;
  min-height: 44px;
  padding: 12px 14px;
  outline: none;
}

textarea {
  resize: vertical;
}

option {
  color: var(--ink);
  background: #111827;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue-2);
  box-shadow: 0 0 0 3px rgba(47,125,246,0.18);
}

.form-note {
  grid-column: 1 / -1;
  margin: 0;
  color: rgba(255,255,255,0.58);
  font-size: 13px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 42px clamp(20px, 5vw, 56px);
  border-top: 1px solid rgba(190, 214, 255, 0.12);
}

.site-footer > div,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-footer img {
  width: 150px;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  color: rgba(255,255,255,0.72);
  font-size: 14px;
}

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 132px clamp(20px, 5vw, 56px) 84px;
}

.page-hero::before,
.page-hero::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.page-hero::before {
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(128, 180, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(128, 180, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, rgba(0,0,0,0.78), transparent 82%);
}

.page-hero::after {
  background:
    linear-gradient(115deg, transparent 0 42%, rgba(18, 199, 216, 0.08) 42.2% 42.8%, transparent 43% 100%),
    radial-gradient(circle at 72% 24%, rgba(47, 125, 246, 0.12), transparent 32%),
    radial-gradient(circle at 20% 80%, rgba(18, 199, 216, 0.08), transparent 30%);
}

.page-hero-inner,
.detail-layout,
.feature-band {
  max-width: var(--max);
  margin: 0 auto;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  display: block;
}

.page-hero-inner > div {
  max-width: 880px;
}

.page-hero h1 {
  margin-bottom: 24px;
}

.breadcrumb {
  margin-bottom: 22px;
  color: rgba(237, 246, 255, 0.58);
  font-size: 13px;
}

.page-summary {
  font-size: 18px;
}

.detail-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 48px;
  align-items: start;
}

.detail-layout-single {
  display: block;
  max-width: 920px;
}

.detail-aside {
  position: sticky;
  top: 116px;
  align-self: start;
  padding: 28px;
  border: 1px solid rgba(190, 214, 255, 0.16);
  border-radius: 0;
  background: rgba(255,255,255,0.055);
}

.detail-aside a {
  display: block;
  padding: 12px 0;
  color: rgba(237,246,255,0.72);
  border-bottom: 1px solid rgba(190,214,255,0.1);
}

.detail-main {
  display: grid;
  gap: 26px;
}

.detail-layout-single .detail-main {
  max-width: 920px;
  margin: 0 auto;
}

.detail-block {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 34px;
  border: 1px solid rgba(128, 180, 255, 0.18);
  border-left-color: rgba(18,199,216,0.42);
  border-radius: 0;
  background:
    linear-gradient(90deg, rgba(18,199,216,0.055), transparent 44%),
    rgba(7, 14, 27, 0.78);
}

.detail-block ul {
  display: grid;
  gap: 12px;
  padding-left: 20px;
  color: rgba(225,237,255,0.72);
  line-height: 1.7;
}

.feature-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.spotlight-section {
  padding-top: 26px;
  padding-bottom: 36px;
}

.spotlight-layout {
  display: grid;
  grid-template-columns: 0.94fr 1.06fr;
  gap: 40px;
  max-width: var(--max);
  margin: 0 auto;
  align-items: stretch;
}

.spotlight-copy,
.spotlight-visual-inner {
  min-height: 100%;
  padding: 38px;
  border-radius: 0;
  background:
    linear-gradient(135deg, rgba(47,125,246,0.075), transparent 40%),
    rgba(7, 14, 27, 0.76);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 24px 60px rgba(0,0,0,0.14);
}

.spotlight-copy h2 {
  max-width: 12ch;
}

.spotlight-copy p:last-child {
  margin-bottom: 0;
}

.spotlight-visual {
  display: grid;
}

.spotlight-visual-inner {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 420px;
  padding: 0;
  border: 1px solid rgba(128, 180, 255, 0.18);
  background:
    linear-gradient(135deg, rgba(18,199,216,0.08), transparent 40%),
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.025));
}

.spotlight-visual-inner::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(135deg, black, transparent 85%);
}

.spotlight-visual-inner p {
  position: relative;
  z-index: 1;
  max-width: 34ch;
  margin: 0;
}

.spotlight-chip {
  position: relative;
  z-index: 1;
  width: fit-content;
  padding: 10px 14px;
  border-radius: 0;
  color: #dcebff;
  background: rgba(47,125,246,0.18);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

body[data-page="platform"] .page-hero,
body[data-page="platform-physical-ai"] .page-hero,
body[data-page="platform-large-circuit-model"] .page-hero,
body[data-page="platform-closed-loop"] .page-hero {
  background:
    linear-gradient(120deg, rgba(47,125,246,0.18), transparent 36%),
    linear-gradient(90deg, rgba(18,199,216,0.08), transparent 64%),
    linear-gradient(135deg, #07111d, #0c1b31);
}

body[data-page="products"] .page-hero,
body[data-page="product-generative-design"] .page-hero,
body[data-page="solution-generative-design"] .page-hero {
  background:
    linear-gradient(118deg, rgba(18,199,216,0.16), transparent 34%),
    linear-gradient(150deg, transparent 0 54%, rgba(126,94,255,0.1) 54.2% 55%, transparent 55.2% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.035), transparent 54%),
    linear-gradient(135deg, #06101b 0%, #0b1628 48%, #07111f 100%);
}

body[data-page="product-curator-emir"] .page-hero,
body[data-page="solution-emir-signoff"] .page-hero {
  background:
    linear-gradient(118deg, rgba(255,125,70,0.13), transparent 32%),
    linear-gradient(150deg, transparent 0 54%, rgba(47,125,246,0.09) 54.2% 55%, transparent 55.2% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.032), transparent 54%),
    linear-gradient(135deg, #0b101b 0%, #141522 50%, #0a1423 100%);
}

body[data-page="product-curator-power"] .page-hero,
body[data-page="solution-ppa-optimization"] .page-hero {
  background:
    linear-gradient(118deg, rgba(48,209,88,0.12), transparent 32%),
    linear-gradient(150deg, transparent 0 54%, rgba(18,199,216,0.09) 54.2% 55%, transparent 55.2% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.032), transparent 54%),
    linear-gradient(135deg, #061213 0%, #0a1a20 50%, #08131f 100%);
}

body[data-page="product-curator-sta"] .page-hero,
body[data-page="product-curator-eco"] .page-hero,
body[data-page="solution-signoff-eco"] .page-hero {
  background:
    linear-gradient(118deg, rgba(102,170,255,0.14), transparent 34%),
    linear-gradient(150deg, transparent 0 54%, rgba(47,125,246,0.09) 54.2% 55%, transparent 55.2% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.032), transparent 54%),
    linear-gradient(135deg, #06101b 0%, #0d1b31 50%, #091421 100%);
}

body[data-page="solutions"] .page-hero {
  background:
    linear-gradient(118deg, rgba(18,199,216,0.14), transparent 34%),
    linear-gradient(150deg, transparent 0 54%, rgba(47,125,246,0.1) 54.2% 55%, transparent 55.2% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.035), transparent 54%),
    linear-gradient(135deg, #06101a 0%, #0b1627 48%, #07111d 100%);
}

body[data-page="about"] .page-hero,
body[data-page="contact"] .page-hero,
body[data-page="cases"] .page-hero {
  background:
    linear-gradient(118deg, rgba(18,199,216,0.13), transparent 34%),
    linear-gradient(150deg, transparent 0 54%, rgba(47,125,246,0.09) 54.2% 55%, transparent 55.2% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.035), transparent 54%),
    linear-gradient(135deg, #06101a 0%, #0a1421 48%, #07111d 100%);
}

body[data-page="product-generative-design"] .spotlight-visual-inner,
body[data-page="solution-generative-design"] .spotlight-visual-inner,
body[data-page="products"] .spotlight-visual-inner {
  background:
    linear-gradient(120deg, rgba(18,199,216,0.12), transparent 38%),
    linear-gradient(60deg, transparent 0 48%, rgba(126,94,255,0.12) 48% 49%, transparent 49% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

body[data-page="product-curator-emir"] .spotlight-visual-inner,
body[data-page="solution-emir-signoff"] .spotlight-visual-inner {
  background:
    linear-gradient(120deg, rgba(255,125,70,0.13), transparent 38%),
    linear-gradient(60deg, transparent 0 52%, rgba(245,166,35,0.1) 52% 53%, transparent 53% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

body[data-page="product-curator-power"] .spotlight-visual-inner,
body[data-page="solution-ppa-optimization"] .spotlight-visual-inner {
  background:
    linear-gradient(120deg, rgba(48,209,88,0.12), transparent 38%),
    linear-gradient(60deg, transparent 0 52%, rgba(18,199,216,0.1) 52% 53%, transparent 53% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

body[data-page="product-curator-sta"] .spotlight-visual-inner,
body[data-page="product-curator-eco"] .spotlight-visual-inner,
body[data-page="solution-signoff-eco"] .spotlight-visual-inner {
  background:
    linear-gradient(120deg, rgba(102,170,255,0.13), transparent 38%),
    linear-gradient(60deg, transparent 0 52%, rgba(47,125,246,0.1) 52% 53%, transparent 53% 100%),
    linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
}

body[data-page="product-generative-design"] .spotlight-chip,
body[data-page="solution-generative-design"] .spotlight-chip,
body[data-page="products"] .spotlight-chip {
  background: linear-gradient(135deg, rgba(18,199,216,0.22), rgba(126,94,255,0.24));
}

body[data-page="product-curator-emir"] .spotlight-chip,
body[data-page="solution-emir-signoff"] .spotlight-chip {
  background: linear-gradient(135deg, rgba(255,125,70,0.18), rgba(245,166,35,0.2));
}

body[data-page="product-curator-power"] .spotlight-chip,
body[data-page="solution-ppa-optimization"] .spotlight-chip {
  background: linear-gradient(135deg, rgba(48,209,88,0.18), rgba(18,199,216,0.18));
}

body[data-page="product-curator-sta"] .spotlight-chip,
body[data-page="product-curator-eco"] .spotlight-chip,
body[data-page="solution-signoff-eco"] .spotlight-chip {
  background: linear-gradient(135deg, rgba(102,170,255,0.18), rgba(47,125,246,0.22));
}

.lang-en,
body[data-lang="zh"] .lang-en,
body[data-lang="en"] .lang-zh {
  display: none !important;
}

body[data-lang="en"] .lang-en {
  display: inline !important;
}

@media (max-width: 1080px) {
  body {
    overflow-x: hidden;
  }

  .site-header {
    grid-template-columns: minmax(0, 1fr) auto auto;
    padding-right: clamp(16px, 4vw, 28px);
    padding-left: clamp(16px, 4vw, 28px);
  }

  .menu-toggle {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    justify-self: end;
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    background: transparent;
  }

  .menu-toggle::before,
  .menu-toggle span,
  .menu-toggle::after {
    display: block;
    width: 22px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    content: "";
  }

  .menu-toggle span {
    flex: 0 0 auto;
  }

  .menu-toggle span + span {
    display: none;
  }

  .nav,
  .header-cta {
    display: none;
  }

  .header-actions {
    gap: 10px;
  }

  .nav.is-open {
    position: absolute;
    top: 86px;
    right: 20px;
    left: 20px;
    z-index: 120;
    max-height: calc(100vh - 112px);
    overflow-y: auto;
    display: grid;
    justify-content: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid rgba(128, 180, 255, 0.22);
    border-radius: 0;
    background: rgba(5, 11, 22, 0.98);
    box-shadow: 0 18px 44px rgba(0,0,0,0.32);
    backdrop-filter: blur(18px);
  }

  .nav.is-open a {
    min-height: 44px;
    padding: 14px;
  }

  .nav.is-open .nav-item > a {
    padding-bottom: 10px;
  }

  .nav.is-open .nav-item {
    display: grid;
  }

  .nav.is-open .nav-item-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 44px;
    align-items: center;
  }

  .nav.is-open .nav-item-head > a {
    padding-bottom: 10px;
  }

  .nav-disclosure {
    display: inline-grid;
    place-items: center;
    width: 44px;
    min-width: 44px;
    height: 44px;
    margin-left: auto;
    border: 0;
    background: transparent;
    color: var(--white);
  }

  .nav-disclosure span {
    display: none;
  }

  .nav-disclosure::before {
    content: "";
    display: block;
    width: 10px;
    height: 10px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
    transition: transform 0.18s ease;
  }

  .nav-item.is-expanded .nav-disclosure::before {
    transform: rotate(-135deg) translateY(-1px);
  }

  .nav.is-open .dropdown {
    position: static;
    min-width: 0;
    margin: -2px 0 8px 12px;
    padding: 4px;
    display: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    background: rgba(255, 255, 255, 0.04);
    box-shadow: none;
  }

  .nav.is-open .nav-item.is-expanded .dropdown {
    display: grid;
  }

  .nav.is-open .dropdown a {
    color: rgba(225, 237, 255, 0.72);
    font-size: 13px;
  }

  .hero-grid,
  .page-hero-inner,
  .spotlight-layout,
  .detail-layout,
  .platform-layout,
  .about-layout,
  .contact-panel,
  .product-feature {
    grid-template-columns: 1fr;
  }

  .metrics,
  .feature-band,
  .products-grid,
  .solution-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric + .metric {
    border-left: 1px solid var(--line);
  }

  .card-grid.three,
  .case-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .hero {
    padding: 92px 18px 76px;
  }

  .hero::before,
  .page-hero::before {
    background-size: 36px 36px;
    mask-image: linear-gradient(to bottom, black, transparent 88%);
  }

  .page-hero {
    min-height: 430px;
    padding: 104px 18px 72px;
  }

  .page-hero::after {
    background:
      linear-gradient(116deg, transparent 0 42%, rgba(18, 199, 216, 0.08) 42.2% 42.9%, transparent 43.2% 100%),
      radial-gradient(circle at 82% 18%, rgba(47, 125, 246, 0.12), transparent 36%),
      radial-gradient(circle at 12% 78%, rgba(18, 199, 216, 0.08), transparent 34%);
  }

  h1 {
    max-width: 100%;
    font-size: clamp(40px, 13vw, 54px);
    line-height: 1.08;
  }

  h2 {
    font-size: clamp(28px, 9vw, 38px);
  }

  h3 {
    font-size: 20px;
  }

  p,
  .page-summary,
  .hero-lead {
    font-size: 16px;
    line-height: 1.78;
  }

  .brand img {
    width: 112px;
  }

  .brand span {
    display: none;
  }

  .site-header {
    gap: 12px;
    min-height: 76px;
  }

  .lang-toggle {
    min-width: 74px;
    height: 42px;
    padding: 0 10px;
  }

  .menu-toggle {
    width: 42px;
    height: 42px;
  }

  .nav.is-open {
    top: 76px;
    right: 14px;
    left: 14px;
    padding: 10px;
  }

  .hero-actions,
  .feature-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .btn,
  .header-cta {
    width: 100%;
    justify-content: center;
  }

  .hero-visual {
    min-height: 260px;
  }

  .hero-image-frame,
  .visual-frame,
  .spotlight-visual-inner {
    min-height: 240px;
  }

  .spotlight-copy,
  .spotlight-visual-inner {
    padding: 24px;
  }

  .spotlight-copy h2 {
    max-width: 100%;
  }

  .chip-board {
    min-height: 360px;
    padding: 16px;
  }

  .chip-core {
    height: 230px;
  }

  .metrics,
  .products-grid,
  .solution-list,
  .check-list,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: auto;
  }

  .feature-band,
  .detail-main,
  .case-grid {
    gap: 18px;
  }

  .card,
  .case-card,
  .detail-block,
  .solution-list article {
    padding: 24px;
  }

  .product-card,
  .product-card h3,
  .solution-list h3 {
    min-height: auto;
  }

  .product-feature,
  .contact-panel {
    padding: 24px;
  }

  .contact-panel-focused {
    gap: 30px;
  }

  .contact-info a {
    padding: 16px 0;
  }

  .contact-info strong {
    overflow-wrap: anywhere;
    font-size: 16px;
  }

  input,
  select,
  textarea {
    min-height: 48px;
    font-size: 16px;
  }

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

  .site-footer > div,
  .site-footer nav {
    align-items: flex-start;
    flex-direction: column;
  }
}