:root {
  --ink: #06111d;
  --ink-2: #0a1b2a;
  --ink-3: #10283a;
  --surface: #f4f7f8;
  --paper: #ffffff;
  --text: #102232;
  --muted: #617384;
  --line: rgba(13, 49, 72, 0.13);
  --cyan: #26d7ca;
  --cyan-2: #62eee3;
  --blue: #56a8ff;
  --white: #f7fbfd;
  --shadow: 0 28px 70px rgba(5, 22, 34, 0.15);
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --container: min(1180px, calc(100vw - 48px));
  --nav-h: 76px;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: "DM Sans", "Noto Sans SC", "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

button,
select,
a {
  font: inherit;
}

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

button,
select {
  border: 0;
}

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

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 200;
  border-radius: 10px;
  background: var(--cyan);
  color: var(--ink);
  padding: 10px 16px;
  font-weight: 700;
}

.skip-link:focus {
  top: 12px;
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 14px;
  color: #127d82;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow.light {
  color: var(--cyan-2);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 52px;
}

.section-heading h2 {
  margin: 0;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: clamp(2rem, 4vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.section-heading p:last-child {
  max-width: 680px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.03rem;
}

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

.section-heading.center p:last-child {
  margin-right: auto;
  margin-left: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease, backdrop-filter 220ms ease;
}

.site-header.scrolled,
.site-header.menu-active {
  border-color: rgba(255, 255, 255, 0.09);
  background: rgba(6, 17, 29, 0.9);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: var(--container);
  min-height: var(--nav-h);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 26px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--white);
  font-family: "Manrope", sans-serif;
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.brand-mark {
  position: relative;
  width: 31px;
  height: 31px;
  border: 1px solid rgba(98, 238, 227, 0.7);
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(38, 215, 202, 0.2), rgba(86, 168, 255, 0.04));
  transform: rotate(45deg);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.brand-mark::before {
  width: 13px;
  height: 2px;
  left: 8px;
  top: 10px;
}

.brand-mark::after {
  width: 2px;
  height: 13px;
  left: 10px;
  top: 8px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.main-nav a {
  border-radius: 9px;
  color: rgba(247, 251, 253, 0.72);
  padding: 8px 10px;
  font-size: 0.84rem;
  font-weight: 600;
  transition: color 180ms ease, background 180ms ease;
}

.main-nav a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
}

.language-wrap {
  position: relative;
}

.language-select {
  appearance: none;
  min-width: 118px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  cursor: pointer;
  padding: 9px 30px 9px 12px;
  font-size: 0.82rem;
  font-weight: 600;
}

.language-wrap::after {
  content: "⌄";
  position: absolute;
  top: 7px;
  right: 11px;
  color: var(--cyan);
  pointer-events: none;
}

.language-select option {
  background: var(--ink);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle.active span {
  opacity: 0;
}

.menu-toggle.active::before {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle.active::after {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 860px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero-media,
.hero-media::before,
.hero-media::after {
  position: absolute;
  inset: 0;
}

.hero-media {
  background: url("assets/door-hangar.jpg") center 42% / cover no-repeat;
  transform: scale(1.02);
}

.hero-media::before {
  content: "";
  background:
    linear-gradient(90deg, rgba(4, 14, 24, 0.98) 0%, rgba(4, 14, 24, 0.87) 42%, rgba(4, 14, 24, 0.35) 75%, rgba(4, 14, 24, 0.18) 100%),
    linear-gradient(0deg, var(--ink) 0%, transparent 34%);
}

.hero-media::after {
  content: "";
  background-image:
    linear-gradient(rgba(65, 211, 207, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(65, 211, 207, 0.035) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(90deg, black, transparent 72%);
}

.hero-product-visual {
  position: absolute;
  z-index: 1;
  top: 112px;
  right: 1.5vw;
  width: min(60vw, 1240px);
  pointer-events: none;
  opacity: 0.96;
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.34) 10%, #000 27%, #000 96%, transparent 100%),
    linear-gradient(0deg, transparent 0%, #000 13%, #000 88%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.34) 10%, #000 27%, #000 96%, transparent 100%),
    linear-gradient(0deg, transparent 0%, #000 13%, #000 88%, transparent 100%);
  mask-composite: intersect;
}

.hero-product-visual::before {
  position: absolute;
  z-index: -1;
  inset: 16% 7% 9% 24%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(38, 215, 202, 0.14), rgba(38, 215, 202, 0) 70%);
  content: "";
  filter: blur(22px);
}

.hero-product-visual img {
  display: block;
  width: 100%;
  height: auto;
  mix-blend-mode: lighten;
  filter: brightness(0.96) contrast(1.12) saturate(1.02);
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: 860px;
  padding-top: 170px;
  padding-bottom: 80px;
}

.hero-copy {
  max-width: 760px;
}

.hero h1 {
  max-width: 750px;
  margin: 0;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: clamp(3.5rem, 7.6vw, 7.2rem);
  font-weight: 700;
  letter-spacing: -0.072em;
  line-height: 0.94;
}

.hero h1 span {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1px rgba(247, 251, 253, 0.6);
}

.hero-lead {
  max-width: 650px;
  margin: 30px 0 0;
  color: rgba(247, 251, 253, 0.72);
  font-size: clamp(1rem, 1.8vw, 1.22rem);
  line-height: 1.75;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 12px;
  padding: 12px 20px;
  font-size: 0.9rem;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--cyan);
  color: var(--ink);
}

.button.primary:hover {
  background: var(--cyan-2);
}

.button.ghost {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--white);
}

.button.dark {
  border: 1px solid rgba(6, 17, 29, 0.2);
  background: transparent;
  color: var(--ink);
}

.button .arrow {
  font-size: 1.15rem;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 710px;
  margin-top: 66px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.proof-item {
  padding: 22px 22px 0 0;
}

.proof-item + .proof-item {
  border-left: 1px solid rgba(255, 255, 255, 0.12);
  padding-left: 22px;
}

.proof-item strong {
  display: block;
  color: var(--cyan-2);
  font-family: "Manrope", sans-serif;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.proof-item span {
  display: block;
  margin-top: 5px;
  color: rgba(247, 251, 253, 0.58);
  font-size: 0.78rem;
}

.hero-hud {
  position: absolute;
  right: 0;
  bottom: 104px;
  width: 270px;
  border: 1px solid rgba(98, 238, 227, 0.25);
  border-radius: 18px;
  background: rgba(4, 18, 30, 0.64);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(14px);
  padding: 17px;
}

.hud-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(247, 251, 253, 0.6);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(38, 215, 202, 0.1), 0 0 20px var(--cyan);
}

.hud-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.hud-item {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.045);
  padding: 9px 10px;
  color: rgba(247, 251, 253, 0.65);
  font-size: 0.72rem;
}

.hud-item b {
  color: var(--white);
  font-weight: 600;
}

.trust-bar {
  background: var(--ink);
  color: rgba(247, 251, 253, 0.58);
}

.trust-inner {
  min-height: 104px;
  display: flex;
  align-items: center;
  gap: 42px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.trust-label {
  flex: 0 0 auto;
  color: rgba(247, 251, 253, 0.43);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.trust-items {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.8rem;
  font-weight: 600;
}

.trust-item::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.section {
  padding: 120px 0;
}

.section.dark {
  background: var(--ink);
  color: var(--white);
}

.section.dark .section-heading p:last-child {
  color: rgba(247, 251, 253, 0.58);
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.eco-card {
  position: relative;
  min-height: 350px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  padding: 28px;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.eco-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.eco-index {
  display: flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(18, 125, 130, 0.18);
  border-radius: 12px;
  background: #eaf8f7;
  color: #087077;
  font-family: "Manrope", sans-serif;
  font-size: 0.75rem;
  font-weight: 800;
}

.eco-card h3 {
  margin: 44px 0 8px;
  font-family: "Manrope", sans-serif;
  font-size: 1.38rem;
  letter-spacing: -0.04em;
}

.eco-card .product-name {
  color: #158d90;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eco-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.eco-link {
  position: absolute;
  right: 25px;
  bottom: 23px;
  left: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  color: #0b7479;
  font-size: 0.78rem;
  font-weight: 700;
}

.capability-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 44px;
}

.cap-tabs {
  display: grid;
  align-content: start;
  gap: 8px;
}

.cap-tab {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: center;
  width: 100%;
  border-radius: 13px;
  background: transparent;
  color: rgba(247, 251, 253, 0.52);
  cursor: pointer;
  padding: 13px;
  text-align: left;
  transition: background 180ms ease, color 180ms ease;
}

.cap-tab:hover,
.cap-tab.active {
  background: rgba(255, 255, 255, 0.075);
  color: var(--white);
}

.cap-tab .tab-index {
  display: flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9px;
  font-size: 0.68rem;
}

.cap-tab.active .tab-index {
  border-color: rgba(38, 215, 202, 0.4);
  background: rgba(38, 215, 202, 0.12);
  color: var(--cyan);
}

.cap-tab strong {
  display: block;
  font-size: 0.88rem;
}

.cap-tab small {
  display: block;
  margin-top: 2px;
  color: inherit;
  font-size: 0.68rem;
  opacity: 0.7;
}

.cap-panel {
  min-height: 448px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 90% 0%, rgba(38, 215, 202, 0.12), transparent 38%),
    rgba(255, 255, 255, 0.035);
  padding: 42px;
}

.cap-panel[hidden] {
  display: none;
}

.cap-panel h3 {
  margin: 0;
  font-family: "Manrope", sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  letter-spacing: -0.05em;
}

.cap-intro {
  max-width: 690px;
  color: rgba(247, 251, 253, 0.58);
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 32px;
}

.cap-card {
  min-height: 174px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 15px;
  background: rgba(0, 0, 0, 0.12);
  padding: 20px;
}

.cap-card span {
  display: block;
  color: var(--cyan);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.cap-card h4 {
  margin: 24px 0 8px;
  font-size: 0.98rem;
}

.cap-card p {
  margin: 0;
  color: rgba(247, 251, 253, 0.5);
  font-size: 0.78rem;
}

.manifesto {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.manifesto-image {
  position: absolute;
  inset: 0;
  background: url("assets/door-training-rig.jpg") center / cover no-repeat;
}

.manifesto-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 17, 29, 0.98) 0%, rgba(6, 17, 29, 0.79) 52%, rgba(6, 17, 29, 0.18) 100%);
}

.manifesto-inner {
  position: relative;
  z-index: 2;
  min-height: 620px;
  display: flex;
  align-items: center;
}

.manifesto-copy {
  max-width: 650px;
}

.manifesto h2 {
  margin: 0;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  letter-spacing: -0.065em;
  line-height: 1.04;
}

.manifesto p:last-child {
  max-width: 580px;
  color: rgba(247, 251, 253, 0.66);
  font-size: 1.05rem;
}

.architecture-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  align-items: center;
}

.architecture-visual {
  position: relative;
  min-height: 540px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(rgba(38, 215, 202, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 215, 202, 0.05) 1px, transparent 1px),
    var(--ink);
  background-size: 32px 32px;
  box-shadow: var(--shadow);
  padding: 38px;
}

.arch-core {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  width: 150px;
  height: 150px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(98, 238, 227, 0.32);
  border-radius: 50%;
  background: rgba(38, 215, 202, 0.09);
  color: var(--white);
  font-family: "Manrope", sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  text-align: center;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 28px rgba(38, 215, 202, 0.03), 0 0 60px rgba(38, 215, 202, 0.1);
}

.arch-node {
  position: absolute;
  max-width: 155px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.055);
  color: rgba(247, 251, 253, 0.72);
  padding: 10px 12px;
  font-size: 0.7rem;
  font-weight: 600;
}

.arch-node:nth-of-type(2) { top: 40px; left: 42px; }
.arch-node:nth-of-type(3) { top: 50px; right: 40px; }
.arch-node:nth-of-type(4) { bottom: 48px; left: 42px; }
.arch-node:nth-of-type(5) { right: 38px; bottom: 42px; }
.arch-node:nth-of-type(6) { top: 49%; left: 28px; }

.architecture-copy .section-heading {
  margin-bottom: 34px;
}

.layer-list {
  display: grid;
  gap: 8px;
}

.layer-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 15px;
  border-bottom: 1px solid var(--line);
  padding: 13px 0;
}

.layer-item span {
  color: #13858a;
  font-family: "Manrope", sans-serif;
  font-size: 0.73rem;
  font-weight: 800;
}

.layer-item strong {
  display: block;
  font-size: 0.9rem;
}

.layer-item small {
  color: var(--muted);
}

.principle {
  margin-top: 26px;
  border-left: 3px solid var(--cyan);
  background: #e8f7f6;
  padding: 18px 20px;
}

.principle strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.78rem;
}

.principle p {
  margin: 0;
  color: #3c5967;
  font-size: 0.8rem;
}

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

.solution-card {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.035);
  padding: 31px;
}

.solution-card::after {
  content: attr(data-index);
  position: absolute;
  right: 18px;
  bottom: -32px;
  color: rgba(255, 255, 255, 0.025);
  font-family: "Manrope", sans-serif;
  font-size: 9rem;
  font-weight: 800;
  line-height: 1;
}

.solution-card h3 {
  margin: 66px 0 10px;
  font-family: "Manrope", sans-serif;
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.solution-card p {
  position: relative;
  z-index: 2;
  max-width: 480px;
  color: rgba(247, 251, 253, 0.55);
  font-size: 0.88rem;
}

.solution-tag {
  display: inline-block;
  border: 1px solid rgba(38, 215, 202, 0.28);
  border-radius: 999px;
  background: rgba(38, 215, 202, 0.08);
  color: var(--cyan);
  padding: 6px 10px;
  font-size: 0.67rem;
  font-weight: 700;
}

.configurator {
  background: #eaf0f2;
}

.config-shell {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.config-copy {
  background: var(--ink);
  color: var(--white);
  padding: 54px;
}

.config-copy h2 {
  margin: 0;
  font-family: "Manrope", sans-serif;
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.config-copy > p:last-of-type {
  color: rgba(247, 251, 253, 0.58);
}

.config-form {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: 54px;
}

.field label {
  display: block;
  margin-bottom: 7px;
  color: #3e5665;
  font-size: 0.75rem;
  font-weight: 700;
}

.field select {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(13, 49, 72, 0.15);
  border-radius: 11px;
  background: #f7f9fa;
  color: var(--text);
  cursor: pointer;
  padding: 0 14px;
}

.config-result {
  margin-top: 12px;
  border-radius: 16px;
  background: #e7f7f5;
  padding: 22px;
}

.config-result small {
  color: #19787b;
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.config-result h3 {
  margin: 5px 0 3px;
  font-family: "Manrope", sans-serif;
  font-size: 1.24rem;
}

.config-result p {
  margin: 0;
  color: #4d6975;
  font-size: 0.84rem;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  counter-reset: delivery;
}

.delivery-step {
  position: relative;
  min-height: 220px;
  border-top: 1px solid var(--line);
  padding: 27px 30px 20px 0;
  counter-increment: delivery;
}

.delivery-step:not(:nth-child(3n + 1)) {
  border-left: 1px solid var(--line);
  padding-left: 30px;
}

.delivery-step::before {
  content: "0" counter(delivery);
  display: block;
  color: #159195;
  font-family: "Manrope", sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.delivery-step h3 {
  margin: 54px 0 8px;
  font-family: "Manrope", sans-serif;
  font-size: 1.05rem;
}

.delivery-step p {
  max-width: 310px;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.cta-section {
  position: relative;
  overflow: hidden;
  background: var(--cyan);
}

.cta-section::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  right: -150px;
  bottom: -280px;
  border: 1px solid rgba(6, 17, 29, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 60px rgba(6, 17, 29, 0.035), 0 0 0 120px rgba(6, 17, 29, 0.025);
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 40px;
  align-items: end;
}

.cta-section .eyebrow {
  color: #0a545a;
}

.cta-section h2 {
  max-width: 820px;
  margin: 0;
  font-family: "Manrope", "Noto Sans SC", sans-serif;
  font-size: clamp(2.5rem, 5.7vw, 5.5rem);
  letter-spacing: -0.07em;
  line-height: 0.98;
}

.cta-section p {
  max-width: 690px;
  color: #1a555d;
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 900px;
  margin: 30px 0 8px;
}

.contact-detail {
  min-height: 92px;
  border: 1px solid rgba(6, 17, 29, 0.18);
  border-radius: 14px;
  background: rgba(247, 251, 253, 0.18);
  padding: 16px;
  color: var(--ink);
  text-decoration: none;
}

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

.contact-detail strong {
  margin-bottom: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-detail span {
  color: #174e56;
  font-size: 0.78rem;
  line-height: 1.5;
}

.contact-email-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-email-link {
  min-width: 0;
  color: #174e56;
  font-size: 0.78rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.copy-email {
  flex: 0 0 auto;
  border: 1px solid rgba(6, 17, 29, 0.24);
  border-radius: 999px;
  background: rgba(247, 251, 253, 0.35);
  padding: 5px 10px;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 0.68rem;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.copy-email:hover,
.copy-email:focus-visible,
.copy-email.copied {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

a.contact-detail:hover {
  border-color: rgba(6, 17, 29, 0.44);
  background: rgba(247, 251, 253, 0.32);
}

.cta-facts {
  display: grid;
  gap: 10px;
}

.cta-fact {
  border-bottom: 1px solid rgba(6, 17, 29, 0.18);
  padding: 12px 0;
}

.cta-fact strong {
  display: block;
  font-size: 0.75rem;
}

.cta-fact span {
  color: #1c565e;
  font-size: 0.8rem;
}

.site-footer {
  background: var(--ink);
  color: rgba(247, 251, 253, 0.55);
  padding: 56px 0 28px;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand p {
  max-width: 460px;
  margin: 16px 0 0;
  font-size: 0.8rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 9px 20px;
}

.footer-nav a {
  font-size: 0.76rem;
}

.footer-nav a:hover {
  color: var(--cyan);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  margin-top: 44px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding-top: 22px;
  font-size: 0.68rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1100px) {
  .main-nav {
    gap: 0;
  }

  .main-nav a {
    padding-inline: 7px;
    font-size: 0.76rem;
  }

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

  .capability-shell {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 24px;
  }

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

  .cap-card {
    min-height: auto;
  }

  .architecture-grid {
    gap: 42px;
  }

  .config-copy,
  .config-form {
    padding: 40px;
  }
}

@media (max-width: 900px) {
  :root {
    --nav-h: 68px;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .language-wrap {
    order: 2;
  }

  .main-nav {
    position: fixed;
    inset: var(--nav-h) 0 auto;
    display: grid;
    max-height: 0;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
    background: rgba(6, 17, 29, 0.98);
    opacity: 0;
    transition: max-height 220ms ease, opacity 180ms ease, padding 220ms ease;
  }

  .main-nav.open {
    max-height: calc(100vh - var(--nav-h));
    overflow: auto;
    opacity: 1;
    padding: 16px 24px 26px;
  }

  .main-nav a {
    padding: 13px 10px;
    font-size: 0.95rem;
  }

  .hero-hud {
    display: none;
  }

  .hero-product-visual {
    top: 190px;
    right: -28vw;
    width: min(1040px, 112vw);
    opacity: 0.52;
    -webkit-mask-image:
      linear-gradient(90deg, transparent 0%, #000 34%, #000 94%, transparent 100%),
      linear-gradient(0deg, transparent 0%, #000 13%, #000 88%, transparent 100%);
    -webkit-mask-composite: source-in;
    mask-image:
      linear-gradient(90deg, transparent 0%, #000 34%, #000 94%, transparent 100%),
      linear-gradient(0deg, transparent 0%, #000 13%, #000 88%, transparent 100%);
    mask-composite: intersect;
  }

  .trust-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding: 24px 0;
  }

  .trust-items {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .capability-shell,
  .architecture-grid,
  .config-shell,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .cap-tabs {
    grid-template-columns: repeat(4, minmax(150px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .architecture-visual {
    min-height: 440px;
  }

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

  .delivery-step:not(:nth-child(3n + 1)) {
    border-left: 0;
    padding-left: 0;
  }

  .delivery-step:nth-child(even) {
    border-left: 1px solid var(--line);
    padding-left: 30px;
  }
}

@media (max-width: 700px) {
  :root {
    --container: min(100% - 32px, 1180px);
    --radius-xl: 23px;
  }

  .section {
    padding: 84px 0;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .language-select {
    min-width: 92px;
    width: 92px;
  }

  .hero,
  .hero-content {
    min-height: 770px;
  }

  .hero-content {
    padding-top: 140px;
  }

  .hero-product-visual {
    top: 300px;
    right: -64vw;
    width: 170vw;
    opacity: 0.34;
  }

  .hero h1 {
    font-size: clamp(3.2rem, 15vw, 5.3rem);
  }

  .hero-proof {
    grid-template-columns: 1fr;
    margin-top: 46px;
  }

  .proof-item,
  .proof-item + .proof-item {
    border-left: 0;
    padding: 12px 0;
  }

  .proof-item + .proof-item {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .trust-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .ecosystem-grid,
  .solutions-grid,
  .delivery-grid {
    grid-template-columns: 1fr;
  }

  .contact-details {
    grid-template-columns: 1fr;
  }

  .eco-card {
    min-height: 310px;
  }

  .cap-panel {
    padding: 28px 20px;
  }

  .manifesto,
  .manifesto-inner {
    min-height: 560px;
  }

  .architecture-visual {
    min-height: 380px;
    padding: 20px;
  }

  .arch-core {
    width: 118px;
    height: 118px;
    font-size: 0.78rem;
  }

  .arch-node {
    max-width: 118px;
    font-size: 0.58rem;
  }

  .arch-node:nth-of-type(2) { top: 25px; left: 20px; }
  .arch-node:nth-of-type(3) { top: 30px; right: 18px; }
  .arch-node:nth-of-type(4) { bottom: 28px; left: 18px; }
  .arch-node:nth-of-type(5) { right: 18px; bottom: 24px; }
  .arch-node:nth-of-type(6) { top: 47%; left: 12px; }

  .config-copy,
  .config-form {
    padding: 30px 22px;
  }

  .delivery-step,
  .delivery-step:nth-child(even),
  .delivery-step:not(:nth-child(3n + 1)) {
    min-height: 190px;
    border-left: 0;
    padding: 23px 0;
  }

  .delivery-step h3 {
    margin-top: 36px;
  }

  .footer-top,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 430px) {
  .brand {
    font-size: 1rem;
  }

  .brand-mark {
    width: 27px;
    height: 27px;
  }

  .language-select {
    min-width: 74px;
    width: 74px;
    color: transparent;
  }

  .language-select option {
    color: var(--white);
  }

  .language-wrap::before {
    content: "文/A";
    position: absolute;
    top: 9px;
    left: 12px;
    color: var(--white);
    font-size: 0.72rem;
    pointer-events: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}