:root {
  --navy: #001529;
  --navy-2: #061b33;
  --navy-3: #073b73;
  --blue: #1677ff;
  --blue-2: #0958d9;
  --blue-3: #4096ff;
  --light: #f5faff;
  --light-2: #eef6ff;
  --text: #061b33;
  --muted: #405c78;
  --soft: #63788f;
  --line: rgba(22, 119, 255, 0.16);
  --shadow: 0 24px 80px rgba(6, 27, 51, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html.js {
  --motion-distance: 26px;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  color: var(--text);
  background: #fff;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 34px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  color: #fff;
  transition: background 0.28s ease, box-shadow 0.28s ease, color 0.28s ease, border-color 0.28s ease;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.site-header.is-scrolled {
  color: var(--text);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 40px rgba(6, 27, 51, 0.1);
  backdrop-filter: blur(14px);
  border-color: rgba(22, 119, 255, 0.12);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
}

.brand-mark img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(22, 119, 255, 0.2));
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  line-height: 1.1;
}

.brand small {
  margin-top: 4px;
  font-size: 12px;
  color: currentColor;
  opacity: 0.7;
}

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
  font-size: 14px;
}

.nav a {
  opacity: 0.86;
  position: relative;
  transition: opacity 0.22s ease, color 0.22s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.24s ease;
}

.nav a:hover,
.nav a.is-active {
  opacity: 1;
  color: var(--blue-3);
}

.nav a:hover::after,
.nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-action {
  padding: 10px 18px;
  border-radius: 6px;
  background: var(--blue);
  color: #fff;
  font-size: 14px;
  box-shadow: 0 12px 28px rgba(22, 119, 255, 0.3);
}

.hero {
  position: relative;
  min-height: 760px;
  height: 100vh;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("./assets/wantitong-hero-bg-v1.png");
  background-size: cover;
  background-position: center;
  transform: scale(1.02) translate3d(var(--hero-pointer-x, 0), calc(var(--hero-scroll-y, 0px) + var(--hero-pointer-y, 0px)), 0);
  animation: hero-drift 16s ease-in-out infinite alternate;
  z-index: -3;
  will-change: transform;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 21, 41, 0.86) 0%, rgba(6, 27, 51, 0.72) 30%, rgba(6, 27, 51, 0.2) 62%, rgba(0, 21, 41, 0.1) 100%),
    linear-gradient(180deg, rgba(0, 21, 41, 0.38) 0%, rgba(0, 21, 41, 0.1) 46%, rgba(0, 21, 41, 0.74) 100%);
  z-index: -2;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 160px;
  background: linear-gradient(180deg, transparent, #fff);
  z-index: -1;
  opacity: 0.18;
}

.hero-content {
  padding-top: 184px;
  max-width: 660px;
  margin-left: max(24px, calc((100vw - 1180px) / 2));
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--blue-3);
  font-size: 15px;
  font-weight: 700;
}

.hero .eyebrow {
  color: #9dccff;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 4.4vw, 58px);
  line-height: 1.12;
  font-weight: 800;
  max-width: 660px;
}

.hero-line {
  display: inline;
}

.hero-copy {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
}

.primary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 6px;
  font-weight: 700;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.primary-btn {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 16px 34px rgba(22, 119, 255, 0.32);
}

.ghost-btn {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.06);
}

.primary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-2px);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(700px, 100%);
  margin-top: 58px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.hero-metrics div {
  padding: 20px 24px;
  background: rgba(0, 21, 41, 0.28);
  transition: transform 0.24s ease, background 0.24s ease;
}

.hero-metrics div:hover {
  transform: translateY(-4px);
  background: rgba(22, 119, 255, 0.14);
}

.hero-metrics strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

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

.section {
  padding: 112px 0;
  position: relative;
}

.section.light {
  background: linear-gradient(180deg, #fff 0%, var(--light) 100%);
}

.section.painpoints {
  background:
    linear-gradient(180deg, #fff 0%, #f8fbff 100%);
  overflow: hidden;
}

.section.painpoints::after {
  content: "";
  position: absolute;
  right: -12%;
  top: 12%;
  width: 42%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.12), transparent 68%);
  pointer-events: none;
}

.section.dark {
  color: #fff;
  background:
    linear-gradient(rgba(22, 119, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 119, 255, 0.08) 1px, transparent 1px),
    radial-gradient(circle at 74% 24%, rgba(22, 119, 255, 0.24), transparent 32%),
    linear-gradient(135deg, var(--navy), var(--navy-2) 52%, #04294f);
  background-size: 48px 48px, 48px 48px, auto, auto;
}

.section.blue {
  color: #fff;
  background: linear-gradient(135deg, #073b73, #061b33 70%);
}

.section.capability {
  background:
    linear-gradient(180deg, #f8fbff 0%, #fff 44%, #eef6ff 100%);
  overflow: hidden;
}

.section.ecosystem {
  background:
    linear-gradient(90deg, rgba(248, 251, 255, 0.98) 0%, rgba(248, 251, 255, 0.86) 32%, rgba(248, 251, 255, 0.2) 68%),
    linear-gradient(180deg, rgba(238, 246, 255, 0.78), rgba(255, 255, 255, 0.62)),
    url("./assets/ecosystem-bg-render.png") center / cover no-repeat;
  overflow: hidden;
}

.section.device-access {
  background:
    radial-gradient(circle at 20% 18%, rgba(22, 119, 255, 0.16), transparent 28%),
    linear-gradient(180deg, #fff 0%, #f5faff 100%);
  overflow: hidden;
}

.section.capability::before {
  content: "";
  position: absolute;
  inset: 80px auto auto 0;
  width: 42%;
  height: 1px;
  background: linear-gradient(90deg, rgba(22, 119, 255, 0.32), transparent);
}

.split {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 72px;
  align-items: center;
}

.section-intro h2,
.section-heading h2,
.research-panel h2,
.contact-layout h2 {
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.2;
  margin-bottom: 20px;
  color: inherit;
}

.section-intro p,
.section-heading p,
.research-panel p,
.contact-layout p {
  color: var(--muted);
  line-height: 1.9;
  font-size: 17px;
}

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

.section-heading {
  max-width: 760px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-heading.left {
  max-width: 760px;
  margin-left: 0;
  text-align: left;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 36px;
  border: 1px solid rgba(22, 119, 255, 0.16);
  background: rgba(22, 119, 255, 0.16);
  box-shadow: 0 24px 72px rgba(6, 27, 51, 0.08);
}

.pain-grid article {
  min-height: 260px;
  padding: 30px 26px;
  background: rgba(255, 255, 255, 0.88);
  transition: transform 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}

.pain-grid article:hover {
  transform: translateY(-6px);
  background: #fff;
  box-shadow: 0 20px 46px rgba(22, 119, 255, 0.12);
}

.pain-grid span,
.ecosystem-roles span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin-bottom: 22px;
  color: var(--blue);
  font-weight: 800;
  font-size: 13px;
}

.pain-grid h3 {
  margin-bottom: 14px;
  font-size: 25px;
  color: var(--text);
}

.pain-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
}

.ecosystem-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 54px;
  align-items: center;
  min-height: 620px;
}

.ecosystem-core h2,
.device-copy h2 {
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.2;
  margin-bottom: 20px;
}

.ecosystem-core p,
.device-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.ecosystem-corebox {
  margin-top: 34px;
  padding: 22px 24px;
  border: 1px solid rgba(22, 119, 255, 0.16);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.84), rgba(238, 246, 255, 0.68));
  color: var(--text);
  box-shadow: 0 20px 54px rgba(6, 27, 51, 0.08);
  backdrop-filter: blur(10px);
}

.ecosystem-corebox strong {
  display: block;
  margin-bottom: 8px;
  font-size: 21px;
}

.ecosystem-corebox span {
  color: var(--muted);
}

.ecosystem-roles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-self: end;
  max-width: 600px;
  justify-self: end;
}

.ecosystem-roles article {
  padding: 18px 20px;
  border: 1px solid rgba(22, 119, 255, 0.15);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 36px rgba(6, 27, 51, 0.06);
  backdrop-filter: blur(10px);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}

.ecosystem-roles article:hover {
  transform: translateY(-5px);
  border-color: rgba(22, 119, 255, 0.34);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 22px 56px rgba(22, 119, 255, 0.12);
}

.ecosystem-roles p {
  margin: 0;
  color: var(--muted);
  line-height: 1.76;
}

.solution-visual {
  position: relative;
  min-height: 460px;
  border: 0;
  background: transparent;
  overflow: visible;
  box-shadow: none;
}

.asset-frame {
  display: grid;
  place-items: center;
}

.asset-frame img {
  display: block;
  width: min(112%, 760px);
  max-width: none;
  height: auto;
  filter: drop-shadow(0 28px 38px rgba(6, 27, 51, 0.18));
  transform: translateZ(0);
  transition: transform 0.5s ease, filter 0.5s ease;
  will-change: transform;
}

.asset-frame:hover img {
  transform: translateY(-8px) scale(1.01);
  filter: drop-shadow(0 34px 48px rgba(6, 27, 51, 0.22));
}

.solution-visual::before {
  content: "";
  position: absolute;
  inset: 16% 4% 10%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.18), transparent 66%);
  filter: blur(18px);
  border: 0;
  border-radius: 50%;
  pointer-events: none;
}

.overview-section {
  background:
    linear-gradient(180deg, rgba(248, 251, 255, 0.94), rgba(255, 255, 255, 0.98));
}

.overview-visual {
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid rgba(22, 119, 255, 0.14);
  background: rgba(248, 251, 255, 0.78);
  box-shadow: 0 28px 80px rgba(6, 27, 51, 0.09);
}

.overview-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.overview-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.overview-points article {
  padding: 22px 24px;
  border-left: 3px solid rgba(22, 119, 255, 0.46);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 40px rgba(6, 27, 51, 0.055);
}

.overview-points span {
  display: block;
  margin-bottom: 9px;
  color: var(--blue);
  font-weight: 800;
}

.overview-points strong {
  display: block;
  color: var(--text);
  font-size: 20px;
  line-height: 1.45;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(22, 119, 255, 0.18);
  border-left: 1px solid rgba(22, 119, 255, 0.18);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 22px 70px rgba(6, 27, 51, 0.08);
}

.capability-grid article {
  min-height: 268px;
  padding: 34px 30px;
  border-right: 1px solid rgba(22, 119, 255, 0.18);
  border-bottom: 1px solid rgba(22, 119, 255, 0.18);
  background:
    linear-gradient(135deg, rgba(22, 119, 255, 0.055), transparent 42%),
    rgba(255, 255, 255, 0.72);
  transition: transform 0.24s ease, background 0.24s ease, box-shadow 0.24s ease;
}

.capability-grid article:hover {
  transform: translateY(-6px);
  background: #fff;
  box-shadow: 0 20px 50px rgba(22, 119, 255, 0.13);
}

.capability-grid span {
  display: inline-flex;
  width: 42px;
  height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--blue);
  border: 1px solid rgba(22, 119, 255, 0.28);
  background: rgba(238, 246, 255, 0.9);
  font-weight: 800;
  font-size: 13px;
}

.capability-grid h3 {
  margin-bottom: 14px;
  color: var(--text);
  font-size: 24px;
  line-height: 1.25;
}

.capability-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
}

.architecture-showcase {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 42px;
  align-items: center;
}

.arch-copy {
  display: grid;
  gap: 14px;
}

.arch-copy div {
  border: 1px solid rgba(64, 150, 255, 0.2);
  background: rgba(255, 255, 255, 0.055);
  padding: 24px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.arch-copy span {
  display: block;
  margin-bottom: 12px;
  color: #9dccff;
  font-weight: 700;
}

.arch-copy strong {
  display: block;
  font-size: 20px;
  line-height: 1.35;
}

.architecture-asset {
  min-height: 560px;
  position: relative;
}

.architecture-asset::before {
  content: "";
  position: absolute;
  inset: 12% 4%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.24), transparent 62%);
  filter: blur(18px);
}

.architecture-asset img {
  position: relative;
  width: min(105%, 680px);
  filter: drop-shadow(0 34px 50px rgba(0, 0, 0, 0.36));
}

.device-layout {
  display: grid;
  grid-template-columns: minmax(390px, 0.74fr) minmax(0, 0.88fr);
  gap: clamp(168px, 12vw, 220px);
  align-items: center;
}

.device-visual {
  min-height: 560px;
  position: relative;
  max-width: 760px;
  justify-self: end;
}

.device-panel {
  position: relative;
  min-height: 560px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid rgba(22, 119, 255, 0.18);
  background:
    linear-gradient(rgba(22, 119, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 119, 255, 0.055) 1px, transparent 1px),
    radial-gradient(circle at 26% 28%, rgba(22, 119, 255, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(238, 246, 255, 0.84));
  background-size: 34px 34px, 34px 34px, auto, auto;
  box-shadow: 0 34px 90px rgba(6, 27, 51, 0.12);
}

.rendered-asset-panel {
  display: grid;
  grid-template-columns: minmax(240px, 0.78fr) minmax(238px, 0.66fr);
  gap: 34px;
  align-items: center;
  background:
    radial-gradient(circle at 34% 52%, rgba(22, 119, 255, 0.16), transparent 46%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(238, 246, 255, 0.74));
}

.device-render {
  width: 100%;
  max-width: 430px;
  justify-self: center;
  margin-left: 0;
  filter: drop-shadow(0 28px 48px rgba(6, 27, 51, 0.2));
}

.device-links {
  position: relative;
  display: grid;
  gap: 16px;
  z-index: 1;
}

.device-links article {
  padding: 22px 24px;
  border-left: 3px solid rgba(22, 119, 255, 0.58);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 42px rgba(6, 27, 51, 0.08);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.device-links article:hover {
  transform: translateX(6px);
  border-color: var(--blue);
  box-shadow: 0 22px 54px rgba(22, 119, 255, 0.14);
}

.device-links span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-weight: 800;
  font-size: 13px;
}

.device-links strong {
  display: block;
  color: var(--text);
  font-size: 19px;
  line-height: 1.38;
}

.device-links p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.workflow-asset {
  margin: -12px auto 42px;
  max-width: 940px;
  min-height: 250px;
  position: relative;
}

.workflow-asset::before {
  content: "";
  position: absolute;
  inset: 18% 6%;
  background: radial-gradient(circle, rgba(64, 150, 255, 0.18), transparent 68%);
  filter: blur(22px);
}

.workflow-asset img {
  position: relative;
  width: min(100%, 940px);
  filter: drop-shadow(0 30px 44px rgba(0, 21, 41, 0.28));
}

.loop-system {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  position: relative;
  align-items: start;
}

.loop-system::before {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  top: -26px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(64, 150, 255, 0.5), transparent);
}

.loop-overview {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(64, 150, 255, 0.22);
  background:
    linear-gradient(rgba(64, 150, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 150, 255, 0.06) 1px, transparent 1px),
    radial-gradient(circle at 50% 42%, rgba(22, 119, 255, 0.34), transparent 34%),
    rgba(0, 21, 41, 0.18);
  background-size: 42px 42px, 42px 42px, auto, auto;
}

.rendered-loop-asset {
  display: grid;
  place-items: center;
  align-self: start;
  height: auto;
  min-height: 0;
  padding: 28px 30px 22px;
  background:
    radial-gradient(ellipse at 50% 58%, rgba(22, 119, 255, 0.24), transparent 62%),
    rgba(0, 21, 41, 0.12);
}

.rendered-loop-asset img {
  width: min(100%, 1040px);
  max-width: 100%;
  aspect-ratio: 1774 / 887;
  object-fit: contain;
  filter: drop-shadow(0 26px 48px rgba(0, 21, 41, 0.36));
}

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

.loop-lane {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
  padding: 24px;
  border: 1px solid rgba(64, 150, 255, 0.18);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035)),
    rgba(0, 21, 41, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: background 0.24s ease, transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.loop-lane:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(64, 150, 255, 0.42);
  transform: translateY(-5px);
  box-shadow: 0 20px 44px rgba(0, 21, 41, 0.18);
}

.loop-title {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.loop-title span {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(64, 150, 255, 0.42);
  background: rgba(22, 119, 255, 0.12);
  color: #9dccff;
  font-weight: 800;
}

.rescue-loop .loop-title > span {
  background: rgba(22, 119, 255, 0.22);
  color: #fff;
  box-shadow: 0 0 0 8px rgba(22, 119, 255, 0.08);
}

.loop-title h3 {
  margin: 0;
  font-size: 24px;
  line-height: 1.22;
}

.loop-title p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.78;
}

.loop-path {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.loop-path span {
  position: relative;
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border: 1px solid rgba(64, 150, 255, 0.18);
  background: rgba(6, 27, 51, 0.34);
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
  text-align: center;
  line-height: 1.35;
  transition: border-color 0.24s ease, background 0.24s ease, transform 0.24s ease;
}

.loop-path span:hover {
  border-color: rgba(64, 150, 255, 0.46);
  background: rgba(22, 119, 255, 0.18);
  transform: translateY(-2px);
}

.loop-outcome {
  padding: 16px 18px;
  border: 1px solid rgba(64, 150, 255, 0.28);
  background:
    linear-gradient(90deg, rgba(64, 150, 255, 0.14), transparent),
    rgba(22, 119, 255, 0.1);
}

.loop-outcome strong {
  display: block;
  margin-bottom: 8px;
  color: #9dccff;
  font-size: 14px;
}

.loop-outcome p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.68;
}

.role-collab {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 44px;
  align-items: center;
}

.role-copy h2 {
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.2;
  margin-bottom: 20px;
}

.role-copy p {
  color: var(--muted);
  line-height: 1.9;
  font-size: 17px;
}

.role-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.role-proof span {
  padding: 10px 14px;
  border: 1px solid rgba(22, 119, 255, 0.18);
  background: rgba(238, 246, 255, 0.72);
  color: var(--navy-3);
  font-weight: 700;
  font-size: 14px;
}

.role-asset {
  position: relative;
  min-height: 500px;
  overflow: visible;
}

.role-asset::before {
  content: "";
  position: absolute;
  inset: 15% 4% 8%;
  background: radial-gradient(circle, rgba(22, 119, 255, 0.18), transparent 68%);
  filter: blur(20px);
}

.role-asset img {
  position: relative;
  width: min(116%, 760px);
  filter: drop-shadow(0 30px 42px rgba(6, 27, 51, 0.2));
}

.role-lanes {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: 34px;
  border: 1px solid var(--line);
  background: var(--line);
  box-shadow: 0 22px 70px rgba(6, 27, 51, 0.08);
}

.role-lanes article {
  min-height: 168px;
  padding: 24px 20px;
  background: rgba(255, 255, 255, 0.86);
  transition: transform 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.role-lanes article:hover {
  transform: translateY(-4px);
  background: #fff;
  box-shadow: 0 18px 40px rgba(22, 119, 255, 0.12);
}

.role-lanes span {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font-weight: 800;
  font-size: 13px;
}

.role-lanes strong {
  display: block;
  margin-bottom: 12px;
  color: var(--text);
  font-size: 22px;
}

.role-lanes p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.delivery {
  color: #fff;
  background:
    linear-gradient(rgba(64, 150, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 150, 255, 0.07) 1px, transparent 1px),
    radial-gradient(circle at 18% 22%, rgba(22, 119, 255, 0.24), transparent 28%),
    linear-gradient(135deg, #001529 0%, #061b33 54%, #073b73 100%);
  background-size: 46px 46px, 46px 46px, auto, auto;
}

.delivery-copy {
  max-width: 860px;
  margin-bottom: 42px;
}

.delivery-copy h2 {
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.2;
  margin-bottom: 22px;
}

.delivery-copy p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 17px;
  line-height: 1.92;
}

.delivery-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-bottom: 28px;
  border: 1px solid rgba(64, 150, 255, 0.2);
  background: rgba(64, 150, 255, 0.16);
}

.delivery-steps article {
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 18px;
  min-height: 286px;
  padding: 26px 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035)),
    rgba(0, 21, 41, 0.2);
  transition: background 0.24s ease, transform 0.24s ease, box-shadow 0.24s ease;
}

.delivery-steps article:hover {
  background: rgba(22, 119, 255, 0.16);
  transform: translateY(-5px);
  box-shadow: 0 22px 54px rgba(0, 21, 41, 0.22);
}

.delivery-steps span {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  color: #fff;
  border: 1px solid rgba(64, 150, 255, 0.42);
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.9), rgba(64, 150, 255, 0.45));
  font-weight: 800;
  box-shadow: 0 0 0 8px rgba(22, 119, 255, 0.08);
}

.delivery-steps h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.25;
}

.delivery-steps p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.78;
}

.roadmap-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  padding-top: 24px;
}

.roadmap-rail::before {
  content: "";
  position: absolute;
  left: 7%;
  right: 7%;
  top: 7px;
  height: 2px;
  background: linear-gradient(90deg, rgba(64, 150, 255, 0.1), rgba(64, 150, 255, 0.78), rgba(64, 150, 255, 0.1));
}

.roadmap-rail span {
  position: relative;
  padding: 13px 12px;
  border: 1px solid rgba(64, 150, 255, 0.24);
  background: rgba(255, 255, 255, 0.075);
  color: rgba(255, 255, 255, 0.82);
  text-align: center;
  font-weight: 700;
  font-size: 14px;
}

.roadmap-rail span::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -24px;
  width: 10px;
  height: 10px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: #4096ff;
  box-shadow: 0 0 0 8px rgba(22, 119, 255, 0.12);
}

.research {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(0, 21, 41, 0.92), rgba(6, 27, 51, 0.76)),
    url("./assets/wantitong-hero-bg-v1.png") center / cover;
}

.research-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: center;
}

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

.value-list span {
  padding: 18px 20px;
  border: 1px solid rgba(64, 150, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.86);
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.value-list span:hover {
  transform: translateY(-4px);
  border-color: rgba(64, 150, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
}

.contact {
  background: linear-gradient(180deg, #fff, var(--light-2));
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  padding: 56px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.contact-layout p {
  max-width: 760px;
  margin-bottom: 0;
}

.footer {
  padding: 28px 0;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
}

.footer-brand img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(22, 119, 255, 0.25));
}

/* Nightly alternate: reduce repeated sections and make the page read more calmly. */
#architecture {
  display: none;
}

.section {
  padding: 92px 0;
}

.overview-section {
  padding-top: 82px;
}

.overview-visual {
  margin-top: 28px;
  border-color: rgba(22, 119, 255, 0.1);
  box-shadow: 0 20px 54px rgba(6, 27, 51, 0.07);
}

.overview-visual img {
  aspect-ratio: 2.65 / 1;
}

.overview-points {
  gap: 0;
  margin-top: 0;
  border-left: 1px solid rgba(22, 119, 255, 0.12);
  border-top: 1px solid rgba(22, 119, 255, 0.12);
}

.overview-points article {
  padding: 20px 24px;
  border-left: 0;
  border-right: 1px solid rgba(22, 119, 255, 0.12);
  border-bottom: 1px solid rgba(22, 119, 255, 0.12);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: none;
}

.overview-points strong {
  font-size: 18px;
}

.capability-grid {
  gap: 14px;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.capability-grid article {
  min-height: 190px;
  padding: 26px;
  border: 1px solid rgba(22, 119, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(248, 251, 255, 0.78));
  box-shadow: 0 14px 34px rgba(6, 27, 51, 0.045);
}

.capability-grid article:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(22, 119, 255, 0.11);
}

.capability-grid span {
  width: auto;
  height: auto;
  margin-bottom: 18px;
  border: 0;
  background: none;
  color: var(--blue);
  justify-content: flex-start;
}

.capability-grid h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.capability-grid p {
  line-height: 1.72;
}

.device-layout {
  grid-template-columns: minmax(360px, 0.7fr) minmax(0, 1fr);
  gap: clamp(96px, 8vw, 150px);
}

.loop-lanes {
  gap: 12px;
}

.loop-lane {
  padding: 22px;
}

.role-lanes article {
  min-height: 146px;
}

.delivery-steps article {
  min-height: 230px;
}

.research {
  padding: 54px 0;
}

.research-panel {
  grid-template-columns: minmax(260px, 0.72fr) 1fr;
  gap: 42px;
}

.research-panel h2 {
  font-size: clamp(28px, 3vw, 40px);
}

.value-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.value-list span {
  padding: 14px 16px;
  text-align: center;
}

.detail-trigger,
.loop-demo-button {
  width: fit-content;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 22px;
  padding: 0 18px;
  border: 1px solid rgba(22, 119, 255, 0.28);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.74);
  color: var(--blue-dark);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 14px 34px rgba(6, 27, 51, 0.08);
  transition: transform 0.24s ease, border-color 0.24s ease, background 0.24s ease, box-shadow 0.24s ease;
}

.detail-trigger:hover,
.loop-demo-button:hover {
  transform: translateY(-2px);
  border-color: rgba(22, 119, 255, 0.58);
  background: #fff;
  box-shadow: 0 20px 44px rgba(22, 119, 255, 0.14);
}

.dark-trigger,
.loop-demo-button {
  background: rgba(22, 119, 255, 0.14);
  color: #fff;
  border-color: rgba(64, 150, 255, 0.35);
  box-shadow: none;
}

.dark-trigger:hover,
.loop-demo-button:hover {
  background: rgba(22, 119, 255, 0.22);
  box-shadow: 0 18px 42px rgba(0, 21, 41, 0.18);
}

.section-action {
  display: flex;
  justify-content: center;
}

.loop-demo-button {
  margin-top: 0;
  width: 100%;
}

.modal-shell {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 32px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s ease;
}

.modal-shell.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 21, 41, 0.58);
  backdrop-filter: blur(14px);
}

.modal-panel {
  position: relative;
  width: min(100%, 1120px);
  max-height: min(820px, calc(100vh - 64px));
  overflow: auto;
  padding: clamp(28px, 4vw, 54px);
  border: 1px solid rgba(64, 150, 255, 0.24);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.97), rgba(238, 246, 255, 0.93)),
    #fff;
  box-shadow: 0 34px 120px rgba(0, 21, 41, 0.32);
  transform: translateY(18px) scale(0.98);
  transition: transform 0.24s ease;
}

.modal-shell.is-open .modal-panel {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(22, 119, 255, 0.16);
  background: rgba(255, 255, 255, 0.76);
  color: var(--text);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.modal-view {
  display: none;
}

.modal-view.is-active {
  display: grid;
  gap: 28px;
}

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

.modal-copy h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 3.4vw, 48px);
  line-height: 1.16;
}

.modal-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
  font-size: 17px;
}

.modal-visual {
  overflow: hidden;
  border: 1px solid rgba(22, 119, 255, 0.14);
  background: rgba(248, 251, 255, 0.72);
  box-shadow: 0 24px 70px rgba(6, 27, 51, 0.1);
}

.modal-visual img {
  display: block;
  width: 100%;
  max-height: 520px;
  object-fit: cover;
}

.wide-visual img {
  aspect-ratio: 16 / 9;
}

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

.modal-insight-row article,
.scenario-panel article {
  padding: 24px;
  border: 1px solid rgba(22, 119, 255, 0.14);
  background: rgba(255, 255, 255, 0.7);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.modal-insight-row article:hover,
.scenario-panel article:hover {
  transform: translateY(-4px);
  border-color: rgba(22, 119, 255, 0.38);
  box-shadow: 0 18px 44px rgba(22, 119, 255, 0.12);
}

.modal-insight-row span,
.scenario-panel span {
  display: block;
  margin-bottom: 12px;
  color: var(--blue);
  font-weight: 800;
}

.modal-insight-row strong,
.scenario-panel strong {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.42;
  color: var(--text);
}

.capability-tour {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 1.05fr);
  gap: 34px;
  align-items: center;
}

.capability-tour-visual {
  min-height: 420px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(22, 119, 255, 0.12);
  background:
    radial-gradient(circle at 50% 52%, rgba(22, 119, 255, 0.13), transparent 48%),
    rgba(248, 251, 255, 0.78);
}

.capability-tour-visual img {
  width: min(112%, 620px);
  filter: drop-shadow(0 28px 58px rgba(6, 27, 51, 0.14));
}

.capability-tour-list {
  display: grid;
  gap: 18px;
}

.capability-tour-list article {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  align-items: start;
  padding: 0 0 22px;
  border-bottom: 1px solid rgba(22, 119, 255, 0.16);
}

.capability-tour-list article:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.capability-tour-list span {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(22, 119, 255, 0.22);
  color: var(--blue);
  font-weight: 900;
}

.capability-tour-list strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 24px;
  line-height: 1.35;
}

.capability-tour-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.device-demo,
.case-demo {
  display: grid;
  grid-template-columns: minmax(260px, 0.86fr) 1fr;
  gap: 28px;
  align-items: center;
}

.modal-device-demo {
  grid-template-columns: 1fr;
  gap: 20px;
}

.device-demo img,
.case-demo img {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 460px;
  object-fit: cover;
  filter: drop-shadow(0 30px 60px rgba(6, 27, 51, 0.18));
}

.modal-device-demo img {
  max-height: 430px;
  object-position: center;
}

.scenario-panel {
  display: grid;
  gap: 12px;
}

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

.modal-device-demo .scenario-panel article {
  min-height: 150px;
}

.role-tabs {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  min-height: 390px;
}

.tab-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.tab-list button {
  min-height: 56px;
  padding: 0 18px;
  border: 1px solid rgba(22, 119, 255, 0.14);
  background: rgba(255, 255, 255, 0.65);
  color: var(--muted);
  font: inherit;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.tab-list button.is-active,
.tab-list button:hover {
  border-color: rgba(22, 119, 255, 0.42);
  background: rgba(22, 119, 255, 0.1);
  color: var(--blue-dark);
}

.role-screen {
  --role-bg: url("./assets/operation-system-modal-v1.png");
  min-height: 390px;
  display: grid;
  align-content: end;
  padding: 34px;
  border: 1px solid rgba(22, 119, 255, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(6, 27, 51, 0.74)),
    var(--role-bg) center / cover no-repeat,
    linear-gradient(135deg, rgba(238, 246, 255, 0.9), rgba(255, 255, 255, 0.92));
  color: #fff;
  transition: background-image 0.24s ease, border-color 0.24s ease;
}

.role-screen span {
  color: #9dccff;
  font-weight: 900;
}

.role-screen strong {
  margin: 10px 0;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.18;
}

.role-screen p {
  max-width: 520px;
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.8;
}

body.modal-open {
  overflow: hidden;
}

.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal {
  opacity: 0;
  transform: translateY(var(--motion-distance));
  transition-delay: var(--stagger, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.motion-item {
  transition-delay: var(--stagger, 0ms);
}

.is-visible .motion-item {
  animation: item-rise 0.62s ease both;
  animation-delay: var(--stagger, 0ms);
}

@keyframes hero-drift {
  from {
    filter: saturate(1) brightness(1);
  }
  to {
    filter: saturate(1.06) brightness(1.04);
  }
}

@keyframes item-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

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

@media (max-width: 980px) {
  .site-header {
    height: 66px;
  }

  .nav {
    display: none;
  }

  .brand {
    min-width: 0;
  }

  .hero {
    height: auto;
    min-height: 820px;
  }

  .hero-bg {
    background-position: 64% center;
  }

  .hero-content {
    padding-top: 140px;
    margin: 0 auto;
  }

  .hero-metrics,
  .split,
  .architecture-showcase,
  .ecosystem-layout,
  .device-layout,
  .role-collab,
  .loop-system,
  .research-panel,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .device-layout {
    gap: 56px;
  }

  .device-visual {
    max-width: none;
    justify-self: stretch;
  }

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

  .overview-points {
    grid-template-columns: 1fr;
  }

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

  .loop-overview {
    min-height: 460px;
  }

  .loop-lane {
    grid-template-columns: 1fr;
  }

  .loop-title {
    grid-row: auto;
  }

  .loop-outcome {
    grid-column: auto;
  }

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

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

  .roadmap-rail {
    grid-template-columns: repeat(5, minmax(120px, 1fr));
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .modal-panel {
    max-height: calc(100vh - 40px);
  }

  .modal-insight-row,
  .capability-tour,
  .device-demo,
  .case-demo,
  .role-tabs {
    grid-template-columns: 1fr;
  }

  .capability-tour-visual {
    min-height: 360px;
  }

  .modal-device-demo .scenario-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, 1180px);
  }

  .site-header {
    padding: 0 16px;
  }

  .brand small,
  .header-action {
    display: none;
  }

  h1 {
    width: 320px;
    max-width: calc(100vw - 32px);
    font-size: 30px;
    line-height: 1.18;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .hero-line {
    display: block;
  }

  .section-intro h2,
  .section-heading h2,
  .research-panel h2,
  .delivery-copy h2,
  .role-copy h2,
  .contact-layout h2 {
    width: 320px;
    max-width: calc(100vw - 32px);
    font-size: 30px;
    line-height: 1.24;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .hero-content {
    max-width: none;
    overflow: hidden;
  }

  .hero-copy {
    width: 320px;
    max-width: calc(100vw - 32px);
    font-size: 16px;
    overflow-wrap: anywhere;
    word-break: break-all;
  }

  .section-intro p,
  .section-heading p,
  .research-panel p,
  .delivery-copy p,
  .role-copy p,
  .contact-layout p {
    width: 320px;
    max-width: calc(100vw - 32px);
    overflow-wrap: anywhere;
    word-break: break-all;
  }

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

  .section {
    padding: 78px 0;
  }

  .solution-visual {
    min-height: 360px;
    overflow: hidden;
  }

  .asset-frame img {
    width: 100%;
    max-width: 100%;
  }

  .architecture-asset {
    min-height: 420px;
  }

  .workflow-asset {
    min-height: 180px;
    margin-bottom: 28px;
  }

  .loop-overview {
    min-height: 520px;
  }

  .loop-lane {
    padding: 22px;
  }

  .loop-title {
    display: grid;
    grid-template-columns: 46px 1fr;
  }

  .loop-title h3 {
    font-size: 24px;
  }

  .loop-path {
    grid-template-columns: 1fr;
  }

  .loop-path span {
    min-height: 54px;
  }

  .role-asset {
    min-height: 360px;
  }

  .role-asset img {
    width: 100%;
    max-width: 100%;
  }

  .role-lanes,
  .pain-grid,
  .ecosystem-roles,
  .capability-grid,
  .overview-points,
  .device-benefits,
  .value-list {
    grid-template-columns: 1fr;
  }

  .overview-visual img {
    aspect-ratio: 16 / 9;
  }

  .device-visual {
    min-height: auto;
  }

  .device-panel {
    min-height: auto;
    padding: 22px;
  }

  .rendered-asset-panel {
    grid-template-columns: 1fr;
  }

  .device-render {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
  }

  .device-links {
    margin-left: 0;
  }

  .capability-grid article {
    min-height: auto;
    padding: 28px 24px;
  }

  .delivery-steps article {
    gap: 12px;
    min-height: auto;
  }

  .delivery-steps,
  .roadmap-rail {
    grid-template-columns: 1fr;
    overflow: visible;
  }

  .roadmap-rail::before,
  .roadmap-rail span::before {
    display: none;
  }

  .contact-layout {
    padding: 32px 24px;
  }

  .footer .container {
    flex-direction: column;
  }

  .modal-shell {
    padding: 16px;
  }

  .modal-panel {
    padding: 26px 18px;
  }

  .modal-close {
    top: 10px;
    right: 10px;
  }

  .modal-insight-row,
  .capability-tour {
    grid-template-columns: 1fr;
  }

  .capability-tour-list article {
    grid-template-columns: 40px 1fr;
    gap: 14px;
  }

  .capability-tour-list span {
    width: 40px;
    height: 40px;
  }

  .role-screen {
    min-height: 320px;
    padding: 24px;
  }
}