:root {
  --berry: #c31742;
  --berry-deep: #8b1232;
  --berry-soft: #fff1f4;
  --leaf: #2f7d4b;
  --leaf-soft: #edf7f0;
  --tech: #00a7b5;
  --ink: #172020;
  --muted: #65706c;
  --line: #dbe5df;
  --paper: #ffffff;
  --field: #f7faf8;
  --shadow: 0 22px 60px rgba(23, 32, 32, 0.13);
  color-scheme: light;
  font-family:
    "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  letter-spacing: 0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.page-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  width: 100%;
  min-height: 72px;
  padding: 12px max(20px, calc((100vw - 1160px) / 2));
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(219, 229, 223, 0.72);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 180px;
}

.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 34% 34%, #ff6d8f 0 18%, transparent 19%),
    radial-gradient(circle at 58% 36%, #e82555 0 20%, transparent 21%),
    radial-gradient(circle at 45% 62%, #b80f3b 0 24%, transparent 25%),
    linear-gradient(135deg, #2f7d4b, #00a7b5);
  box-shadow: 0 10px 24px rgba(195, 23, 66, 0.2);
}

.brand strong {
  display: block;
  font-size: 1rem;
  line-height: 1.1;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.3;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.site-nav a,
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 6px;
  color: #32413d;
  font-size: 0.92rem;
  white-space: nowrap;
  transition:
    background-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover {
  color: var(--berry);
  background: var(--berry-soft);
}

.header-cta {
  color: #ffffff;
  background: var(--ink);
}

.header-cta:hover {
  transform: translateY(-1px);
  background: var(--berry-deep);
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 88svh;
  padding: 112px 0 72px;
  overflow: hidden;
  background: #eff7f2;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: 64% center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.78) 38%, rgba(255, 255, 255, 0.12) 72%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.1) 58%, rgba(255, 255, 255, 0.58));
}

.hero-tech-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 167, 181, 0.07) 1px, transparent 1px),
    linear-gradient(0deg, rgba(0, 167, 181, 0.06) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(90deg, transparent 0%, rgba(0, 0, 0, 0.45) 45%, rgba(0, 0, 0, 0.88) 100%);
}

.hero-tech-layer::before,
.hero-tech-layer::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.hero-tech-layer::before {
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 167, 181, 0.28) 48%, transparent 50%);
  background-size: 100% 180px;
  animation: scan-field 7s linear infinite;
}

.hero-tech-layer::after {
  right: 7%;
  bottom: 16%;
  width: min(34vw, 430px);
  height: min(34vw, 430px);
  border: 1px solid rgba(0, 167, 181, 0.32);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 0 38%, rgba(0, 167, 181, 0.18) 39% 40%, transparent 41% 59%, rgba(0, 167, 181, 0.14) 60% 61%, transparent 62%),
    conic-gradient(from 20deg, transparent 0 24%, rgba(0, 167, 181, 0.32) 25% 28%, transparent 29% 62%, rgba(47, 125, 75, 0.3) 63% 66%, transparent 67%);
  animation: rotate-slow 18s linear infinite;
}

.hero-tech-layer span {
  position: absolute;
  top: var(--top);
  left: var(--left);
  width: 10px;
  height: 10px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: var(--tech);
  box-shadow:
    0 0 0 12px rgba(0, 167, 181, 0.12),
    0 0 28px rgba(0, 167, 181, 0.46);
  animation: pulse-node 2.6s ease-in-out infinite;
  animation-delay: var(--delay);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-hud {
  position: absolute;
  right: max(20px, calc((100vw - 1160px) / 2));
  bottom: 72px;
  z-index: 3;
  width: min(320px, calc(100vw - 40px));
  padding: 18px;
  border: 1px solid rgba(0, 167, 181, 0.34);
  border-radius: 8px;
  color: #ffffff;
  background: rgba(15, 25, 24, 0.74);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
}

.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.hud-header span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.74rem;
  font-weight: 900;
}

.hud-header strong {
  position: relative;
  padding-left: 16px;
  color: #8ff4e8;
  font-size: 0.88rem;
}

.hud-header strong::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #8ff4e8;
  box-shadow: 0 0 16px rgba(143, 244, 232, 0.8);
  content: "";
  transform: translateY(-50%);
}

.hud-body {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.hud-body div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.hud-body span {
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.82rem;
}

.hud-body strong {
  color: #ffffff;
  font-size: 0.95rem;
}

.hud-body b {
  font: inherit;
}

.hud-wave {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  align-items: end;
  gap: 5px;
  height: 54px;
  margin-top: 18px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hud-wave i {
  display: block;
  height: var(--h);
  border-radius: 999px 999px 2px 2px;
  background: linear-gradient(180deg, #8ff4e8, var(--tech));
  animation: wave-rise 1.9s ease-in-out infinite;
}

.hud-wave i:nth-child(2n) {
  animation-delay: 0.25s;
}

.hud-wave i:nth-child(3n) {
  animation-delay: 0.5s;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--berry);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 640px;
  margin: 0;
  color: var(--ink);
  font-size: 4rem;
  line-height: 1.05;
  font-weight: 900;
}

.hero-copy {
  max-width: 610px;
  margin: 24px 0 0;
  color: #33413c;
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 800;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

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

.button.primary {
  color: #ffffff;
  background: var(--berry);
  box-shadow: 0 16px 32px rgba(195, 23, 66, 0.24);
}

.button.primary:hover {
  background: var(--berry-deep);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.84);
  border-color: rgba(47, 125, 75, 0.25);
}

.button.secondary:hover {
  border-color: var(--tech);
  box-shadow: 0 12px 30px rgba(0, 167, 181, 0.16);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(96px, 128px));
  gap: 12px;
  margin-top: 42px;
}

.hero-metrics div {
  min-height: 92px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(10px);
}

.hero-metrics strong {
  display: block;
  color: var(--berry);
  font-size: 1.7rem;
  line-height: 1.1;
}

.hero-metrics span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

section {
  scroll-margin-top: 92px;
}

.product-section,
.quality-section,
.story-section {
  padding: 92px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 44px;
  align-items: end;
  margin-bottom: 38px;
}

h2 {
  margin: 0;
  font-size: 2.45rem;
  line-height: 1.14;
}

h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.3;
}

p {
  margin: 0;
}

.section-heading p,
.lead,
.supply-content p,
.story-band p {
  color: var(--muted);
  font-size: 1rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.trace-step {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.feature-card {
  min-height: 220px;
  padding: 28px;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(195, 23, 66, 0.28);
  box-shadow: var(--shadow);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 32px;
  border-radius: 8px;
  color: var(--berry);
  background: var(--berry-soft);
  font-weight: 900;
}

.feature-card p {
  margin-top: 14px;
  color: var(--muted);
}

.technology-section {
  padding: 96px 0;
  background:
    linear-gradient(135deg, rgba(237, 247, 240, 0.96), rgba(255, 255, 255, 0.9)),
    linear-gradient(90deg, transparent 0 49%, rgba(0, 167, 181, 0.12) 49% 51%, transparent 51% 100%);
}

.tech-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(340px, 0.72fr);
  gap: 56px;
  align-items: center;
}

.tech-layout h2,
.supply-content h2,
.contact-section h2 {
  margin-bottom: 20px;
}

.tech-points {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.control-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.control-tab {
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid rgba(0, 167, 181, 0.28);
  border-radius: 6px;
  color: #24413f;
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  font-weight: 900;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.control-tab:hover,
.control-tab.is-active {
  color: #ffffff;
  border-color: var(--tech);
  background: var(--tech);
  transform: translateY(-1px);
}

.control-copy {
  min-height: 54px;
  margin-top: 14px;
  padding: 14px 16px;
  border-left: 3px solid var(--tech);
  color: #45524e;
  background: rgba(255, 255, 255, 0.7);
}

.tech-points div {
  position: relative;
  padding-left: 36px;
}

.point-dot {
  position: absolute;
  top: 5px;
  left: 0;
  width: 18px;
  height: 18px;
  border: 5px solid rgba(0, 167, 181, 0.18);
  border-radius: 50%;
  background: var(--tech);
}

.tech-points p {
  margin-top: 6px;
  color: var(--muted);
}

.sensor-panel {
  padding: 24px;
  border: 1px solid rgba(0, 167, 181, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.panel-header span {
  color: var(--muted);
  font-size: 0.9rem;
}

.panel-header strong {
  color: var(--tech);
}

.sensor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.sensor-grid div {
  min-height: 98px;
  padding: 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--field);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.sensor-grid div.is-highlighted {
  border-color: rgba(0, 167, 181, 0.42);
  box-shadow: inset 0 0 0 1px rgba(0, 167, 181, 0.1), 0 16px 32px rgba(0, 167, 181, 0.14);
  transform: translateY(-2px);
}

.sensor-grid span,
.signal-list span,
.contact-list span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
}

.sensor-grid strong {
  display: block;
  margin-top: 10px;
  color: var(--ink);
  font-size: 1.65rem;
}

.sensor-grid em {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  font-style: normal;
}

.growth-map {
  position: relative;
  min-height: 168px;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid rgba(47, 125, 75, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(47, 125, 75, 0.1) 1px, transparent 1px),
    linear-gradient(0deg, rgba(47, 125, 75, 0.1) 1px, transparent 1px),
    linear-gradient(135deg, #f5fbf7, #e8f7f8);
  background-size: 28px 28px, 28px 28px, auto;
}

.sensor-node {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 18px;
  height: 18px;
  padding: 0;
  border: 3px solid #ffffff;
  border-radius: 50%;
  background: var(--berry);
  box-shadow:
    0 0 0 10px rgba(195, 23, 66, 0.12),
    0 0 34px rgba(0, 167, 181, 0.28);
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition:
    background-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.sensor-node::after {
  position: absolute;
  inset: -14px;
  border: 1px solid rgba(195, 23, 66, 0.18);
  border-radius: 50%;
  content: "";
  animation: pulse-node 2.4s ease-in-out infinite;
}

.sensor-node:hover,
.sensor-node:focus-visible,
.sensor-node.is-active {
  background: var(--tech);
  box-shadow:
    0 0 0 12px rgba(0, 167, 181, 0.16),
    0 0 42px rgba(0, 167, 181, 0.46);
  transform: translate(-50%, -50%) scale(1.18);
}

.sensor-node span {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  width: max-content;
  max-width: 180px;
  padding: 7px 9px;
  border: 1px solid rgba(0, 167, 181, 0.24);
  border-radius: 6px;
  color: #ffffff;
  background: rgba(23, 32, 32, 0.88);
  font-size: 0.74rem;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(6px);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.sensor-node:hover span,
.sensor-node:focus-visible span,
.sensor-node.is-active span {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.node-readout {
  min-height: 38px;
  margin-top: 12px;
  padding: 9px 12px;
  border: 1px solid rgba(0, 167, 181, 0.2);
  border-radius: 6px;
  color: #24413f;
  background: rgba(255, 255, 255, 0.74);
  font-size: 0.86rem;
}

.signal-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.signal-list div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

meter {
  width: 100%;
  height: 12px;
}

meter::-webkit-meter-bar {
  border: 0;
  border-radius: 999px;
  background: #e3eee8;
}

meter::-webkit-meter-optimum-value {
  border-radius: 999px;
  background: linear-gradient(90deg, var(--leaf), var(--tech));
}

@keyframes scan-field {
  from {
    background-position: 0 -180px;
  }

  to {
    background-position: 0 180px;
  }
}

@keyframes rotate-slow {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse-node {
  0%,
  100% {
    opacity: 0.72;
    transform: scale(0.82);
  }

  50% {
    opacity: 1;
    transform: scale(1.18);
  }
}

@keyframes wave-rise {
  0%,
  100% {
    transform: scaleY(0.64);
  }

  50% {
    transform: scaleY(1);
  }
}

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

.trace-step {
  min-height: 194px;
  padding: 24px;
}

.trace-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 28px;
  border-radius: 50%;
  color: #ffffff;
  background: var(--leaf);
  font-weight: 900;
}

.trace-step p {
  margin-top: 10px;
  color: var(--muted);
}

.supply-section {
  padding: 88px 0;
  background: var(--ink);
  color: #ffffff;
}

.supply-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1fr);
  gap: 54px;
  align-items: center;
}

.supply-image {
  height: 430px;
  overflow: hidden;
  border-radius: 8px;
}

.supply-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 68% center;
}

.supply-section .section-kicker {
  color: #7ee4e8;
}

.supply-content p {
  color: rgba(255, 255, 255, 0.72);
}

.supply-list {
  display: grid;
  gap: 12px;
  margin: 32px 0 28px;
}

.supply-list div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  min-height: 62px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.supply-list span {
  color: rgba(255, 255, 255, 0.68);
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #ffffff;
  border-bottom: 2px solid var(--tech);
  font-weight: 800;
}

.story-band {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.9fr);
  gap: 44px;
  align-items: center;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 241, 244, 0.86), rgba(237, 247, 240, 0.86)),
    #ffffff;
}

.contact-section {
  padding: 96px 0;
  background: var(--field);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(340px, 0.68fr);
  gap: 58px;
  align-items: start;
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.contact-list div {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list strong {
  display: block;
  margin-top: 4px;
  font-size: 1.04rem;
}

.inquiry-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 8px;
}

.inquiry-form label span {
  color: #384640;
  font-size: 0.92rem;
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #ccd9d2;
  border-radius: 6px;
  color: var(--ink);
  background: #ffffff;
  outline: none;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease;
}

.inquiry-form textarea {
  min-height: 128px;
  resize: vertical;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--tech);
  box-shadow: 0 0 0 4px rgba(0, 167, 181, 0.12);
}

.inquiry-form .field-error {
  border-color: var(--berry);
  background: #fff8fa;
}

.form-button {
  width: 100%;
  margin-top: 4px;
}

.form-status {
  min-height: 24px;
  color: var(--leaf);
  font-weight: 800;
}

.form-status.error {
  color: var(--berry);
}

.site-footer {
  background: #0f1514;
  color: rgba(255, 255, 255, 0.74);
}

.footer-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
  font-size: 0.92rem;
}

.footer-layout a {
  color: #ffffff;
}

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: auto auto;
    gap: 12px;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .header-cta {
    justify-self: end;
  }

  .hero {
    display: block;
    min-height: 86svh;
    padding-top: 138px;
  }

  .hero-content {
    padding-top: 0;
  }

  .hero-hud {
    position: relative;
    right: auto;
    bottom: auto;
    z-index: 3;
    width: min(100% - 40px, 520px);
    margin: 28px auto 0;
  }

  .hero h1 {
    font-size: 3.1rem;
  }

  .section-heading,
  .tech-layout,
  .supply-layout,
  .story-band,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

  .supply-image {
    height: 340px;
  }
}

@media (max-width: 680px) {
  .page-shell {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    padding: 10px 14px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand small {
    display: none;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 12px;
    font-size: 0.88rem;
  }

  .site-nav a {
    min-height: 36px;
    padding: 0 12px;
    font-size: 0.88rem;
  }

  .hero {
    align-items: end;
    min-height: 0;
    padding: 136px 0 52px;
  }

  .hero-image {
    object-position: 68% center;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.86) 0%, rgba(255, 255, 255, 0.58) 42%, rgba(255, 255, 255, 0.94) 100%),
      linear-gradient(90deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.1));
  }

  .hero h1 {
    font-size: 2.45rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 30px;
  }

  .hero-metrics div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    min-height: 62px;
    gap: 12px;
  }

  .hero-metrics span {
    margin-top: 0;
  }

  .hero-hud {
    width: min(100% - 28px, 420px);
    padding: 16px;
  }

  .hud-body div {
    align-items: flex-start;
  }

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

  .control-tab {
    padding: 0 12px;
  }

  .product-section,
  .quality-section,
  .story-section,
  .technology-section,
  .supply-section,
  .contact-section {
    padding: 68px 0;
  }

  h2 {
    font-size: 2rem;
  }

  .product-grid,
  .trace-line,
  .sensor-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .trace-step,
  .sensor-panel,
  .inquiry-form,
  .story-band {
    padding: 22px;
  }

  .tech-layout,
  .contact-layout,
  .supply-layout {
    gap: 34px;
  }

  .sensor-grid div {
    min-height: 86px;
  }

  .growth-map {
    min-height: 142px;
  }

  .sensor-node span {
    max-width: 140px;
  }

  .signal-list div,
  .supply-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .supply-image {
    height: 260px;
  }

  .footer-layout {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 18px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}