:root {
  /* 全站主题色：后续只需从这里调整主色及其明暗层级。 */
  --brand-primary: #137038;
  --brand-primary-rgb: 19, 112, 56;
  --green-950: #042c1b;
  --green-900: #063c24;
  --green-800: #0b572f;
  --green-700: #116634;
  --green-600: var(--brand-primary);
  --green-500: var(--brand-primary);
  --green-300: #93d9a7;
  --cyan-400: #43cda1;
  --ink: #142d21;
  --muted: #607268;
  --line: #dce9df;
  --soft: #f1f8f3;
  --warm: #fbfdfb;
  --white: #ffffff;
  --warning: #9a6a12;
  --shadow: 0 18px 50px rgba(6, 43, 29, 0.1);
  --radius: 8px;
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

[id] {
  scroll-margin-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--warm);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--green-950);
  background: var(--white);
  border-radius: 8px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 6px 24px rgba(6, 43, 29, 0.06);
  backdrop-filter: blur(18px);
}

.section-rail {
  position: fixed;
  z-index: 90;
  top: 50%;
  left: 28px;
  display: grid;
  width: 50px;
  height: 288px;
  padding: 6px 0;
  align-content: space-between;
  transform: translateY(-50%);
}

.section-rail a {
  position: relative;
  display: grid;
  width: 50px;
  height: 30px;
  align-items: center;
}

.rail-mark {
  width: 13px;
  height: 4px;
  margin-left: 1px;
  background: rgba(255, 255, 255, 0.26);
  transition: width 180ms ease, height 180ms ease, background 180ms ease;
}

.section-rail a:hover .rail-mark,
.section-rail a:focus-visible .rail-mark,
.section-rail a[aria-current="page"] .rail-mark {
  width: 46px;
  height: 4px;
  background: var(--white);
}

.rail-card {
  position: absolute;
  top: 50%;
  left: 64px;
  display: grid;
  width: max-content;
  min-width: 210px;
  gap: 8px;
  padding: 18px 20px;
  color: var(--white);
  pointer-events: none;
  opacity: 0;
  background: #2b2b2b;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
  transform: translate(-14px, -50%);
  transition: opacity 180ms ease, transform 180ms ease;
}

.rail-card b { font-size: 17px; line-height: 1.25; }
.rail-card small { color: rgba(255, 255, 255, 0.58); font-size: 13px; line-height: 1.5; }

.section-rail a:hover .rail-card,
.section-rail a:focus-visible .rail-card {
  opacity: 1;
  transform: translate(0, -50%);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  white-space: nowrap;
}

.brand-en {
  color: var(--green-500);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.07em;
}

.brand-cn {
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-size: 18px;
  font-weight: 700;
}

.site-header .brand-cn {
  max-width: 360px;
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
}

.site-header .brand-lockup {
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
}

.brand-name-cn {
  color: #17392a;
  font-size: 19px;
  font-weight: 750;
  letter-spacing: 0.01em;
  line-height: 1.25;
}

.brand-name-en {
  color: var(--green-500);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.065em;
  line-height: 1.15;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  position: relative;
  padding: 25px 14px 23px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--green-700);
}

.site-nav a[aria-current="page"]::after {
  position: absolute;
  right: 14px;
  bottom: 15px;
  left: 14px;
  height: 2px;
  content: "";
  background: var(--green-500);
  border-radius: 99px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--green-700);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  content: "";
  background: currentColor;
  border-radius: 99px;
}

.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 24%, rgba(255, 255, 255, 0.22), transparent 28%),
    linear-gradient(112deg, var(--green-700) 0%, var(--green-600) 42%, var(--brand-primary) 72%, var(--green-600) 100%);
}

.hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(90deg, transparent 5%, #000 56%, #000 100%);
}

.hero--home {
  min-height: 690px;
}

.hero--inner {
  min-height: 420px;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 690px;
  align-items: center;
  grid-template-columns: minmax(0, 1.15fr) minmax(430px, 0.85fr);
  gap: 50px;
  padding-block: 72px 88px;
}

.hero--inner .hero-grid {
  min-height: 420px;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 0.6fr);
  padding-block: 72px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 26px;
  height: 2px;
  content: "";
  background: currentColor;
}

.hero h1 {
  max-width: 790px;
  margin: 0;
  font-size: clamp(40px, 4.3vw, 58px);
  font-weight: 780;
  letter-spacing: -0.045em;
  line-height: 1.18;
}

.hero--inner h1 {
  font-size: clamp(38px, 4vw, 58px);
}

.hero-lead {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  color: var(--white);
  background: var(--green-500);
  border: 1px solid var(--green-500);
  border-radius: 8px;
  font-size: 15px;
  font-weight: 750;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(var(--brand-primary-rgb), 0.24);
}

.button--ghost {
  color: var(--white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
}

.hero .button:not(.button--ghost) {
  color: var(--green-700);
  background: var(--white);
  border-color: var(--white);
}

.button--light {
  color: var(--green-800);
  background: var(--white);
  border-color: var(--white);
}

.button--outline {
  color: var(--green-700);
  background: transparent;
  border-color: #9ecfb2;
}

.network-stage {
  position: relative;
  min-height: 500px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 28px;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.16), transparent 34%),
    rgba(6, 43, 29, 0.24);
  box-shadow: inset 0 0 80px rgba(255, 255, 255, 0.06);
}

.network-stage::before,
.network-stage::after {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 330px;
  height: 330px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.network-stage::after {
  width: 210px;
  height: 210px;
  border-color: rgba(255, 255, 255, 0.42);
}

.network-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: grid;
  width: 126px;
  height: 126px;
  place-items: center;
  padding: 18px;
  color: var(--white);
  text-align: center;
  background: rgba(6, 43, 29, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 50%;
  box-shadow: 0 0 55px rgba(var(--brand-primary-rgb), 0.3);
  transform: translate(-50%, -50%);
}

.network-core strong {
  display: block;
  font-size: 17px;
  line-height: 1.45;
}

.network-node {
  position: absolute;
  z-index: 3;
  min-width: 108px;
  padding: 12px 14px;
  color: var(--white);
  text-align: center;
  background: rgba(6, 43, 29, 0.88);
  border: 1px solid rgba(145, 227, 164, 0.38);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}

.network-node b {
  display: block;
  color: var(--green-300);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.network-node span {
  font-size: 14px;
  font-weight: 700;
}

.network-node--1 { top: 10%; left: 11%; }
.network-node--2 { top: 13%; right: 8%; }
.network-node--3 { top: 43%; left: 4%; }
.network-node--4 { top: 45%; right: 2%; }
.network-node--5 { bottom: 10%; left: 14%; }
.network-node--6 { right: 10%; bottom: 9%; }

.network-caption {
  position: absolute;
  right: 22px;
  bottom: 20px;
  left: 22px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  text-align: center;
}

.section {
  padding-block: 104px;
}

.section--compact {
  padding-block: 72px;
}

.section--soft {
  background: var(--soft);
}

.section--dark {
  color: var(--white);
  background:
    radial-gradient(circle at 90% 20%, rgba(var(--brand-primary-rgb), 0.16), transparent 30%),
    var(--green-950);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 52px;
}

.section-heading--center {
  display: block;
  max-width: 760px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-kicker {
  margin: 0 0 10px;
  color: var(--green-600);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.section--dark .section-kicker {
  color: var(--green-300);
}

.section-title {
  max-width: 760px;
  margin: 0;
  font-size: clamp(30px, 3.4vw, 48px);
  letter-spacing: -0.035em;
  line-height: 1.28;
}

.section-description {
  max-width: 610px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.section--dark .section-description {
  color: rgba(255, 255, 255, 0.62);
}

#cases .section-description {
  max-width: none;
  white-space: nowrap;
}

.text-link {
  color: var(--green-600);
  font-size: 14px;
  font-weight: 750;
  white-space: nowrap;
}

.text-link:hover {
  color: var(--green-800);
}

.value-grid,
.solution-grid,
.metric-grid,
.case-grid,
.proof-grid,
.contact-grid,
.footer-grid,
.capability-grid,
.audience-grid {
  display: grid;
  gap: 24px;
}

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

.value-item {
  padding: 0 24px 0 0;
  border-right: 1px solid var(--line);
}

.value-item:last-child {
  border-right: 0;
}

.value-number {
  display: block;
  margin-bottom: 16px;
  color: var(--green-600);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.value-item h3 {
  margin: 0 0 10px;
  font-size: 21px;
}

.value-item p,
.card p,
.feature-row p,
.proof-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  list-style: none;
  padding: 0;
  margin: 0;
}

.flow-list li {
  position: relative;
  padding: 0 20px;
  text-align: center;
}

.flow-list li:not(:last-child)::after {
  position: absolute;
  top: 30px;
  right: -8px;
  color: var(--green-300);
  content: "→";
  font-size: 22px;
}

.flow-step {
  display: grid;
  width: 62px;
  height: 62px;
  place-items: center;
  margin: 0 auto 18px;
  color: var(--green-700);
  background: #eaf7ef;
  border: 1px solid #cde8d7;
  border-radius: 50%;
  font-size: 16px;
  font-weight: 800;
}

.flow-list h3 {
  margin: 0 0 7px;
  font-size: 17px;
}

.flow-list p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.metric-panel {
  padding: 54px;
  color: var(--white);
  background:
    linear-gradient(rgba(145, 227, 164, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(145, 227, 164, 0.08) 1px, transparent 1px),
    #0a3d28;
  background-size: 44px 44px;
  border: 1px solid rgba(145, 227, 164, 0.16);
  border-radius: var(--radius);
}

.metric-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.metric-head h2 {
  margin: 0;
  font-size: 30px;
}

.metric-note {
  color: var(--green-300);
  font-size: 13px;
}

.metric-grid {
  grid-template-columns: repeat(6, 1fr);
}

.metric-item {
  min-height: 138px;
  padding: 22px 18px;
  background: rgba(6, 43, 29, 0.62);
  border: 1px solid rgba(145, 227, 164, 0.24);
  border-radius: var(--radius);
}

.metric-label {
  display: block;
  min-height: 44px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.metric-value {
  display: block;
  margin-top: 12px;
  color: var(--green-300);
  font-size: 34px;
  font-weight: 800;
}

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

.card {
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.card:hover {
  border-color: #abd8bc;
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card-label {
  display: inline-block;
  margin-bottom: 28px;
  color: var(--green-600);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.card h3 {
  margin: 0 0 12px;
  font-size: 24px;
}

.card-list,
.check-list,
.feature-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.card-list li,
.check-list li {
  position: relative;
  padding: 12px 0 12px 20px;
  color: #365149;
  border-top: 1px solid #ebf1ee;
  font-size: 14px;
}

.card-list li::before,
.check-list li::before {
  position: absolute;
  top: 19px;
  left: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--green-500);
  border-radius: 50%;
}

.platform-layout,
.split-layout {
  display: grid;
  align-items: center;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
}

.platform-console {
  overflow: hidden;
  background: #0a3d28;
  border: 1px solid rgba(145, 227, 164, 0.22);
  border-radius: var(--radius);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.22);
}

.console-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  color: rgba(255, 255, 255, 0.54);
  background: #062b1d;
  border-bottom: 1px solid rgba(145, 227, 164, 0.14);
  font-size: 12px;
}

.console-body {
  display: grid;
  min-height: 420px;
  grid-template-columns: 130px 1fr;
}

.console-nav {
  padding: 22px 14px;
  color: rgba(255, 255, 255, 0.55);
  background: rgba(6, 43, 29, 0.66);
}

.console-nav span {
  display: block;
  padding: 10px 12px;
  margin-bottom: 5px;
  border-radius: 6px;
  font-size: 12px;
}

.console-nav span:first-child {
  color: var(--white);
  background: rgba(var(--brand-primary-rgb), 0.24);
}

.console-main {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 20px;
}

.console-module {
  min-height: 112px;
  padding: 16px;
  color: rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(145, 227, 164, 0.13);
  border-radius: 10px;
  font-size: 12px;
}

.console-module strong {
  display: block;
  margin-bottom: 18px;
  color: var(--white);
  font-size: 13px;
}

.console-line {
  display: block;
  height: 5px;
  margin-top: 9px;
  background: linear-gradient(90deg, var(--green-500), rgba(var(--brand-primary-rgb), 0.05));
  border-radius: 99px;
}

.console-line:nth-child(3) { width: 72%; }
.console-line:nth-child(4) { width: 48%; }

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 30px;
}

.feature-row {
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.feature-row b {
  display: block;
  margin-bottom: 6px;
  color: var(--white);
}

.feature-row p {
  color: rgba(255, 255, 255, 0.56);
}

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

.case-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.case-visual {
  position: relative;
  display: flex;
  overflow: hidden;
  min-height: 210px;
  align-items: end;
  padding: 26px;
  color: var(--white);
  isolation: isolate;
  background: var(--green-900);
}

.case-visual::after {
  position: absolute;
  z-index: 1;
  inset: 0;
  content: "";
  background: linear-gradient(160deg, rgba(var(--brand-primary-rgb), 0.22), rgba(4, 44, 27, 0.9));
}

.case-visual img {
  position: absolute;
  z-index: -1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.case-card:hover .case-visual img {
  transform: scale(1.04);
}

.case-visual span {
  position: relative;
  z-index: 2;
  font-size: 26px;
  font-weight: 750;
}

.case-body {
  padding: 26px;
}

.case-status {
  display: inline-block;
  padding: 5px 10px;
  margin-bottom: 16px;
  color: var(--warning);
  background: #fff7e7;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.case-body h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.case-body p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

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

.proof-item {
  padding: 28px;
  background: var(--white);
  border: 1px dashed #b8cfc2;
  border-radius: var(--radius);
}

.proof-item small {
  display: block;
  margin-bottom: 22px;
  color: var(--green-600);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.proof-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.cta-band {
  color: var(--white);
  background:
    radial-gradient(circle at 85% 0%, rgba(var(--brand-primary-rgb), 0.24), transparent 30%),
    linear-gradient(120deg, var(--green-900), var(--brand-primary));
}

.cta-inner {
  display: flex;
  min-height: 300px;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  padding-block: 68px;
}

.cta-inner h2 {
  max-width: none;
  margin: 0;
  font-size: clamp(28px, 2.2vw, 34px);
  letter-spacing: -0.03em;
  line-height: 1.32;
  white-space: nowrap;
}

@media (max-width: 680px) {
  #cases .section-description { white-space: normal; }
  .cta-inner h2 { white-space: normal; }
}

.cta-inner p {
  max-width: 590px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  line-height: 1.8;
}

.page-tabs,
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 38px;
}

.page-tabs a,
.filter-button {
  padding: 10px 17px;
  color: var(--green-700);
  background: #eaf7ef;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}

.filter-button[aria-pressed="true"] {
  color: var(--white);
  background: var(--green-700);
}

.solution-detail {
  display: grid;
  grid-template-columns: 0.64fr 1.36fr;
  gap: 70px;
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

.solution-detail:first-of-type {
  border-top: 0;
}

.solution-detail h2 {
  margin: 0 0 12px;
  font-size: 34px;
}

.solution-detail > div > p {
  color: var(--muted);
}

.detail-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.detail-block {
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.detail-block h3 {
  margin: 0 0 14px;
  color: var(--green-700);
  font-size: 17px;
}

.detail-block p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

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

.capability-item {
  padding: 30px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(145, 227, 164, 0.15);
  border-radius: var(--radius);
}

.capability-item small {
  color: var(--green-300);
  font-weight: 800;
}

.capability-item h3 {
  margin: 14px 0 8px;
  font-size: 21px;
}

.capability-item p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
}

.surface-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.surface-item {
  min-height: 250px;
  padding: 28px;
  color: var(--white);
  background: linear-gradient(155deg, #16873e, #0a3d28);
  border: 1px solid rgba(145, 227, 164, 0.2);
  border-radius: var(--radius);
}

.surface-item small {
  color: var(--green-300);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.surface-item h3 {
  margin: 26px 0 10px;
  font-size: 23px;
}

.surface-item p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

.surface-shot {
  margin-top: 24px;
  padding: 14px;
  color: rgba(255, 255, 255, 0.46);
  text-align: center;
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: 8px;
  font-size: 12px;
}

.timeline {
  position: relative;
  max-width: 820px;
  padding-left: 34px;
  margin: 0 auto;
}

.timeline::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 7px;
  width: 1px;
  content: "";
  background: #b8d9c4;
}

.timeline-item {
  position: relative;
  padding: 0 0 36px 28px;
}

.timeline-item::before {
  position: absolute;
  top: 7px;
  left: -33px;
  width: 13px;
  height: 13px;
  content: "";
  background: var(--green-500);
  border: 4px solid #dff3e5;
  border-radius: 50%;
}

.timeline-item h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.contact-grid {
  grid-template-columns: 0.8fr 1.2fr;
  gap: 32px;
  align-items: stretch;
}

.contact-panel,
.form-panel {
  padding: 38px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.contact-panel {
  display: flex;
  flex-direction: column;
}

.contact-panel h2,
.form-panel h2 {
  margin: 0 0 12px;
  font-size: 28px;
}

.contact-panel > p,
.form-panel > p {
  margin: 0 0 28px;
  color: var(--muted);
}

.contact-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

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

.contact-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.contact-list small {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
}

.contact-list strong {
  font-size: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 24px;
}

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

.form-field--wide {
  grid-column: 1 / -1;
}

.form-field label,
.form-consent {
  font-size: 14px;
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid #cbdad2;
  border-radius: 8px;
  outline: none;
}

.form-field select {
  padding-right: 42px;
  appearance: none;
  background: var(--white) url('/assets/icons/chevron-down.svg') no-repeat right 16px center / 12px 8px;
  cursor: pointer;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(var(--brand-primary-rgb), 0.12);
}

.form-field textarea {
  min-height: 130px;
  resize: vertical;
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--muted);
  font-weight: 400;
}

.form-consent input {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--green-600);
}

.form-actions {
  margin-top: 24px;
}

.form-result {
  display: none;
  padding: 13px 16px;
  margin-top: 18px;
  color: var(--green-800);
  background: #eaf7ef;
  border-radius: 8px;
  font-size: 14px;
}

.form-result.is-visible {
  display: block;
}

.site-footer {
  color: rgba(255, 255, 255, 0.66);
  background: #041f15;
}

.footer-main {
  padding-block: 48px 32px;
}

.footer-grid {
  grid-template-columns: 1.4fr repeat(2, 1fr) 0.9fr;
  align-items: start;
}

.footer-brand p {
  max-width: 300px;
  margin: 18px 0 0;
  font-size: 13px;
}

.footer-brand-name {
  color: var(--white);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.footer-column h3 {
  margin: 0 0 17px;
  color: var(--white);
  font-size: 15px;
}

.footer-column a,
.footer-column span {
  display: block;
  margin: 9px 0;
  font-size: 13px;
}

.footer-column a:hover {
  color: var(--green-300);
}

.footer-resident {
  text-align: left;
}

.footer-resident h3 {
  margin-bottom: 18px;
  text-align: left;
}

.footer-resident img {
  width: 148px;
  height: 148px;
  padding: 6px;
  background: var(--white);
  border-radius: 18px;
  object-fit: contain;
}

.footer-address {
  line-height: 1.65;
  word-break: break-all;
}

.footer-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  padding-block: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
}

.footer-bottom-links {
  display: flex;
  justify-self: end;
  gap: 20px;
}

.footer-address-bottom {
  text-align: center;
}

[hidden] {
  display: none !important;
}

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

@media (max-width: 1050px) {
  .section-rail { display: none; }
  .site-nav a { padding-inline: 9px; }
  .hero-grid,
  .hero--inner .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-grid { padding-block: 70px; }
  .network-stage { min-height: 440px; }
  .value-grid,
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .value-item:nth-child(2) { border-right: 0; }
  .flow-list { grid-template-columns: repeat(3, 1fr); gap: 36px 0; }
  .flow-list li:nth-child(3)::after { display: none; }
  .metric-grid { grid-template-columns: repeat(3, 1fr); }
  .platform-layout,
  .split-layout { grid-template-columns: 1fr; }
  .surface-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 36px), var(--container)); }
  .header-inner { min-height: 68px; }
  .brand-en { font-size: 20px; }
  .brand-cn { font-size: 15px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: 68px;
    right: 0;
    left: 0;
    height: calc(100svh - 68px);
    z-index: 99;
    display: none;
    align-content: start;
    padding: 22px 18px 40px;
    background: var(--white);
    box-shadow: 0 24px 50px rgba(6, 43, 29, 0.12);
    overflow-y: auto;
  }
  .site-nav.is-open { display: grid; }
  .site-nav a {
    padding: 15px 8px;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
  }
  .site-nav a[aria-current="page"]::after { display: none; }
  .hero--home { min-height: 0; }
  .hero-grid { min-height: 0; }
  .hero h1 { font-size: clamp(38px, 10vw, 56px); }
  .hero-lead { font-size: 16px; }
  .network-stage { min-height: 400px; }
  .section { padding-block: 78px; }
  .section--compact { padding-block: 58px; }
  .section-heading { display: block; }
  .section-heading .text-link { display: inline-block; margin-top: 20px; }
  .solution-grid,
  .case-grid,
  .capability-grid,
  .audience-grid { grid-template-columns: 1fr; }
  .metric-panel { padding: 34px 24px; }
  .metric-head { display: block; }
  .metric-note { display: block; margin-top: 10px; }
  .platform-layout { gap: 42px; }
  .solution-detail { grid-template-columns: 1fr; gap: 22px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { display: block; }
  .footer-address-bottom,
  .footer-bottom-links { display: block; margin-top: 12px; }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .brand { gap: 8px; }
  .brand-en { font-size: 18px; }
  .brand-cn { padding-left: 8px; font-size: 14px; }
  .hero-grid { gap: 34px; padding-block: 56px; }
  .hero--inner .hero-grid { padding-block: 58px; }
  .hero h1 { font-size: 39px; }
  .hero-actions .button,
  .cta-inner .button { width: 100%; }
  .network-stage { min-height: 500px; }
  .network-stage::before { width: 250px; height: 250px; }
  .network-stage::after { width: 160px; height: 160px; }
  .network-core { width: 108px; height: 108px; }
  .network-node { min-width: 96px; padding: 10px; }
  .network-node--1 { top: 7%; left: 4%; }
  .network-node--2 { top: 8%; right: 3%; }
  .network-node--3 { top: 39%; left: 1%; }
  .network-node--4 { top: 40%; right: 1%; }
  .network-node--5 { bottom: 9%; left: 4%; }
  .network-node--6 { right: 3%; bottom: 9%; }
  .value-grid,
  .metric-grid,
  .proof-grid,
  .surface-list,
  .detail-columns,
  .feature-list,
  .form-grid,
  .footer-grid { grid-template-columns: 1fr; }
  .value-item { padding: 0 0 24px; border-right: 0; border-bottom: 1px solid var(--line); }
  .flow-list { grid-template-columns: repeat(2, 1fr); }
  .flow-list li:nth-child(2n)::after { display: none; }
  .flow-list li:nth-child(3)::after { display: block; }
  .metric-item { min-height: 112px; }
  .console-body { grid-template-columns: 1fr; }
  .console-nav { display: none; }
  .console-main { grid-template-columns: 1fr; }
  .contact-panel,
  .form-panel,
  .card { padding: 26px 22px; }
  .cta-inner { display: block; }
  .cta-inner .hero-actions { margin-top: 30px; }
  .footer-bottom { display: block; }
  .footer-bottom-links { margin-top: 12px; }
}

/* 方案 2：产业纪实型首页 */

.documentary-home {
  color: #102f22;
  background: #fbfaf6;
}

.hero--inner {
  color: #102f22;
  background: #f7f5ef;
  border-bottom: 1px solid #e6e4dc;
}

.hero--inner::before {
  display: none;
}

.hero--inner .eyebrow {
  color: var(--green-600);
}

.hero--inner .hero-lead {
  color: var(--muted);
}

.documentary-cover {
  position: relative;
  overflow: hidden;
  min-height: 640px;
  color: #fff;
  background: #073d2d;
}

.documentary-cover__image,
.documentary-cover__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.documentary-cover__image {
  object-fit: cover;
  object-position: center;
}

.documentary-cover__shade {
  background: linear-gradient(90deg, rgba(2, 48, 35, 0.98) 0%, rgba(2, 48, 35, 0.86) 35%, rgba(2, 48, 35, 0.32) 64%, rgba(2, 48, 35, 0.08) 100%);
}

.documentary-cover__inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 640px;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  padding-block: 78px 118px;
}

.documentary-cover__copy {
  width: 100%;
}

.documentary-cover h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(36px, 2.6vw, 44px);
  font-weight: 780;
  letter-spacing: -0.035em;
  line-height: 1.28;
  white-space: nowrap;
}

.documentary-cover__copy > p {
  max-width: 535px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 16px;
  line-height: 1.8;
}

.documentary-cover__actions {
  position: absolute;
  right: 0;
  bottom: 118px;
  display: flex;
  gap: 14px;
  padding-bottom: 10px;
}

.documentary-cover__actions .button {
  min-width: 152px;
}

.documentary-cover__actions .button:not(.button--outline) {
  color: #fff;
}

.documentary-cover__actions .button--outline {
  color: #fff;
  background: rgba(4, 43, 32, 0.2);
  border-color: rgba(255, 255, 255, 0.72);
}

.documentary-solution-row figure,
.documentary-dashboard {
  position: relative;
  overflow: hidden;
  margin: 0;
}

.documentary-solution-row img,
.documentary-dashboard img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.documentary-proof {
  position: relative;
  z-index: 2;
  margin-top: -54px;
  padding: 0 0 34px;
}

.documentary-proof__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 26px 32px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(220, 226, 220, 0.8);
  box-shadow: 0 18px 52px rgba(4, 42, 30, 0.12);
}

.documentary-proof__grid > a {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 14px;
  padding: 8px 24px;
  border-right: 1px solid #e6e8e2;
}

.documentary-proof__grid > :first-child {
  padding-left: 0;
}

.documentary-proof__grid > :last-child {
  padding-right: 0;
  border-right: 0;
}

.documentary-proof__grid > a:hover b,
.documentary-proof__grid > a:focus-visible b {
  color: var(--green-600);
}

.theme-icon {
  display: inline-block;
  flex: 0 0 auto;
  object-fit: contain;
}

.documentary-proof__grid .theme-icon {
  width: 30px;
  height: 30px;
}

.documentary-proof__grid b {
  display: block;
  margin-bottom: 6px;
  color: #17392a;
  font-size: 15px;
}

.documentary-proof__grid p {
  margin: 0;
  color: #69776f;
  font-size: 12px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .documentary-proof__grid { grid-template-columns: repeat(2, 1fr); }
  .documentary-proof__grid > :nth-child(2n) { padding-right: 0; border-right: 0; }
  .documentary-proof__grid > :nth-child(-n + 2) { padding-bottom: 18px; margin-bottom: 18px; border-bottom: 1px solid #e6e8e2; }
}

.documentary-section {
  padding: 86px 0;
}

.documentary-heading {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: center;
}

.documentary-heading > p {
  margin: 0 0 6px;
  color: var(--green-600);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.documentary-heading h2 {
  margin: 0;
  color: #102f22;
  font-size: clamp(32px, 3.4vw, 46px);
  letter-spacing: -0.035em;
}

.documentary-heading span {
  display: block;
  margin-top: 9px;
  color: #637269;
  font-size: 15px;
}

.documentary-process {
  background: #fff;
}

.about-video {
  display: block;
  width: 100%;
  margin: 32px 0 0;
  background: #102f22;
  border: 1px solid #d8ded9;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(35, 54, 44, 0.12);
}

.documentary-steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  padding: 0;
  margin: 0;
  list-style: none;
}

.documentary-steps li {
  position: relative;
  padding: 0 14px;
  text-align: center;
}

.documentary-steps li:not(:last-child)::after {
  position: absolute;
  top: 29px;
  right: -14px;
  width: 28px;
  height: 1px;
  content: "";
  background: #cfd9d2;
}

.documentary-steps b {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  margin: 0 auto 16px;
  color: var(--green-600);
  background: #fff;
  border: 1px solid #cfe0d4;
  border-radius: 50%;
  font-size: 14px;
  box-shadow: 0 8px 22px rgba(6, 43, 29, 0.06);
}

.documentary-steps b .theme-icon {
  width: 27px;
  height: 27px;
}

.documentary-steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.documentary-steps p {
  margin: 0;
  color: #66736c;
  font-size: 12px;
}

.documentary-process__closing {
  display: grid;
  min-height: 136px;
  place-items: center;
  margin-top: 54px;
  padding: 24px;
  color: #fff;
  background: linear-gradient(90deg, rgba(3, 47, 34, 0.82), rgba(3, 47, 34, 0.48)), url('/assets/images/sorting-center.jpg') center / cover;
  border-radius: 8px;
  font-size: clamp(21px, 2.25vw, 32px);
  font-weight: 750;
  letter-spacing: 0.03em;
  text-align: center;
}

.documentary-solutions {
  background: #f7f5ef;
}

.documentary-solution-list {
  overflow: hidden;
  background: #fff;
  border: 1px solid #e7e5dd;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(35, 54, 44, 0.07);
}

.documentary-solution-row {
  display: grid;
  min-height: 380px;
  grid-template-columns: 0.72fr 1.28fr;
  border-bottom: 1px solid #e8e7e1;
}

.documentary-solution-row:last-child {
  border-bottom: 0;
}

.documentary-solution-row--reverse {
  grid-template-columns: 1.28fr 0.72fr;
}

.documentary-solution-copy {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  padding: 48px 56px;
}

.documentary-solution-copy small {
  margin-bottom: 18px;
  color: var(--green-600);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.documentary-solution-copy h3 {
  margin: 0 0 16px;
  color: #102f22;
  font-size: 26px;
}

.documentary-solution-copy p {
  margin: 0;
  color: #627269;
  font-size: 15px;
  line-height: 1.9;
}

.documentary-solution-copy a {
  margin-top: 26px;
  color: var(--green-600);
  font-size: 14px;
  font-weight: 750;
}

.documentary-solution-copy a:hover span {
  display: inline-block;
  transform: translateX(4px);
}

.documentary-platform {
  background: #fff;
}

.documentary-outcomes {
  background: #f7f5ef;
}

.outcome-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0 0 46px;
  background: #fff;
  border: 1px solid #e0e7df;
}

.outcome-metrics > div {
  padding: 28px 30px;
  border-right: 1px solid #e0e7df;
}

.outcome-metrics > :last-child {
  border-right: 0;
}

.outcome-metrics dt {
  display: flex;
  align-items: baseline;
  gap: 5px;
  color: var(--green-700);
  font-size: clamp(34px, 3vw, 48px);
  font-weight: 750;
  letter-spacing: -0.06em;
  line-height: 1;
}

.outcome-metrics dt small {
  font-size: 15px;
  letter-spacing: 0;
}

.outcome-metrics dd {
  margin: 12px 0 0;
  color: #64736b;
  font-size: 14px;
}

.service-map-panel__copy span {
  color: #68776f;
  font-size: 14px;
  line-height: 1.7;
}

.service-map-panel {
  display: grid;
  grid-template-columns: 0.64fr 1.36fr;
  min-height: 400px;
  margin-top: 32px;
  background: #fff;
}

.service-map-panel__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 42px;
  background: #143f2d;
}

.service-map-panel__copy p {
  margin: 0 0 14px;
  color: #8bc9a4;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
}

.service-map-panel__copy h3 {
  margin: 0 0 18px;
  color: #fff;
  font-size: 30px;
}

.service-map-panel__copy span {
  color: rgba(255, 255, 255, .72);
}

.service-map {
  overflow: hidden;
  min-height: 400px;
}

.service-map .store-map-tooltip {
  padding: 7px 10px;
  color: #fff;
  background: rgba(0, 0, 0, 0.76);
  border: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}

.service-map .leaflet-tooltip-top.store-map-tooltip::before {
  border-top-color: rgba(0, 0, 0, 0.76);
}


.documentary-platform__grid {
  display: grid;
  align-items: stretch;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 40px;
}

.documentary-devices {
  position: relative;
  display: flex;
  min-height: 500px;
  align-items: center;
  justify-content: center;
  margin: 0;
}

.device-composite {
  position: relative;
  width: 100%;
  max-width: none;
  aspect-ratio: 3 / 2;
}

.device-mobile {
  position: absolute;
  z-index: 4;
  right: 8.3%;
  top: 33.5%;
  width: 20%;
  max-width: none;
  height: auto;
}

.device-frame,
.device-screen {
  position: absolute;
  display: block;
}

.device-frame {
  z-index: 1;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  max-width: none;
}

.device-screen {
  z-index: 2;
  background: #fff;
  object-fit: contain;
  object-position: center;
}

.device-screen--desktop {
  top: 14.6%;
  left: 16.35%;
  width: 63.7%;
  height: 62.1%;
}

.documentary-capabilities {
  display: grid;
  min-height: 500px;
  grid-template-rows: repeat(4, 1fr);
  gap: 4px;
}

.documentary-capabilities > div {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-content: center;
  column-gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid #e4e9e5;
}

.documentary-capabilities > div b {
  grid-row: 1 / span 2;
  align-self: start;
  padding-top: 2px;
  color: var(--green-600);
  font-size: 12px;
}

.documentary-capabilities h3 {
  grid-column: 2;
  margin: 0 0 5px;
  font-size: 17px;
}

.documentary-capabilities p {
  grid-column: 2;
  margin: 0;
  color: #6a7870;
  font-size: 13px;
}


.documentary-about {
  background: #f7f5ef;
}

.documentary-about__grid {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 70px;
  padding: 56px;
  background: #fff;
  border: 1px solid #e6e5df;
  border-radius: 8px;
}

.documentary-about__grid--single {
  grid-template-columns: 1fr;
}

.documentary-about h2 {
  margin: 0 0 18px;
  font-size: clamp(32px, 3vw, 44px);
}

.documentary-about__grid > div > p:not(.section-kicker) {
  margin: 0;
  color: #607168;
}

.documentary-about ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 28px 0;
  margin: 0;
  list-style: none;
}

.documentary-about li {
  padding-top: 14px;
  border-top: 2px solid #dce8df;
}

.documentary-about li b,
.documentary-about li span {
  display: block;
}

.documentary-about li b {
  margin-bottom: 7px;
  color: var(--green-600);
  font-size: 13px;
}

.documentary-about li span {
  color: #65746c;
  font-size: 12px;
}

.about-member-link {
  color: #65746c;
  font-size: 12px;
}

.about-member-link:hover,
.about-member-link:focus-visible {
  color: var(--green-600);
}

.about-content { max-width: 1120px; }
.about-lead { max-width: none; font-size: 18px; line-height: 1.9; white-space: nowrap; }
.about-story-grid,
.about-values-grid,
.about-service-grid { display: grid; gap: 18px; }
.about-story-grid { grid-template-columns: repeat(2, 1fr); margin-top: 34px; }
.about-story-grid article,
.about-service-grid article { padding: 22px 24px; background: rgba(255, 255, 255, 0.62); border: 1px solid #dce8df; border-radius: 8px; }
.about-story-grid b,
.about-values-grid b { color: var(--green-700); font-size: 15px; }
.about-story-grid p,
.about-values-grid p,
.about-service-grid p,
.about-cooperation p { margin: 8px 0 0; color: #65746c; font-size: 14px; line-height: 1.8; }
.about-values { margin-top: 52px; padding-top: 32px; border-top: 1px solid #dce8df; }
.about-block-heading { display: flex; align-items: baseline; gap: 18px; margin-bottom: 22px; }
.about-block-heading span,
.about-service-grid span,
.about-block-heading__eyebrow { color: var(--green-600); font-size: 11px; font-weight: 750; letter-spacing: 0.12em; }
.about-block-heading h3 { margin: 0; font-size: 24px; }
.about-values-grid { grid-template-columns: repeat(4, 1fr); }
.about-service-grid { grid-template-columns: repeat(3, 1fr); margin-top: 48px; }
.about-service-grid h3 { margin: 9px 0 0; font-size: 20px; }
.about-cooperation { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 30px; margin-top: 48px; padding: 28px 0 0; border-top: 1px solid #dce8df; }
.about-cooperation h3 { margin: 8px 0 0; font-size: 24px; }
.about-outlook { padding-left: 30px; border-left: 1px solid #dce8df; }
.about-outlook b { color: var(--green-700); }

@media (max-width: 1180px) {
  .brand-name-cn { font-size: 16px; }
  .brand-name-en { font-size: 9px; letter-spacing: 0.04em; }
  .documentary-cover__inner { min-height: 600px; }
  .documentary-proof__grid > a { padding-inline: 28px; }
}

@media (max-width: 900px) {
  .documentary-cover,
  .documentary-cover__inner { min-height: 590px; }
  .documentary-cover__inner { align-items: center; padding-block: 72px 114px; }
  .documentary-cover__actions { position: absolute; right: 24px; bottom: 72px; }
  .documentary-cover h1 { white-space: normal; }
  .documentary-steps { grid-template-columns: repeat(3, 1fr); gap: 36px 0; }
  .documentary-steps li:nth-child(3)::after { display: none; }
  .documentary-platform__grid,
  .documentary-about__grid { grid-template-columns: 1fr; }
  .documentary-solution-copy { padding: 42px; }
}

@media (max-width: 680px) {
  .site-header .brand-lockup { max-width: calc(100vw - 100px); gap: 2px; }
  .brand-name-cn { font-size: 14px; }
  .brand-name-en { font-size: 8px; letter-spacing: 0.02em; }
  .documentary-cover,
  .documentary-cover__inner { min-height: 600px; }
  .documentary-cover__image { object-position: 62% center; }
  .documentary-cover__shade { background: linear-gradient(90deg, rgba(2, 48, 35, 0.94) 0%, rgba(2, 48, 35, 0.72) 70%, rgba(2, 48, 35, 0.46) 100%); }
  .documentary-cover__inner { display: block; padding-block: 72px 148px; }
  .documentary-cover h1 { font-size: 35px; line-height: 1.38; }
  .documentary-cover__copy > p { margin-top: 24px; font-size: 15px; line-height: 1.85; }
  .documentary-cover__actions { right: 20px; bottom: 76px; left: 20px; gap: 10px; }
  .documentary-cover__actions .button { min-width: 0; flex: 1; padding-inline: 14px; }
  .documentary-proof { margin-top: -42px; padding-bottom: 24px; }
  .documentary-proof__grid { grid-template-columns: 1fr; }
  .documentary-proof__grid { width: calc(100% - 24px); padding: 12px 22px; }
  .documentary-proof__grid > a { padding: 16px 0; border-right: 0; border-bottom: 1px solid #e6e8e2; }
  .documentary-proof__grid > :last-child { border-bottom: 0; }
  .documentary-section { padding: 68px 0; }
  .documentary-heading { margin-bottom: 36px; }
  .about-video { border-radius: 6px; }
  .documentary-steps { grid-template-columns: repeat(2, 1fr); gap: 34px 0; }
  .documentary-process__closing { min-height: 108px; margin-top: 42px; font-size: 20px; line-height: 1.55; }
  .documentary-steps li:nth-child(2n)::after { display: none; }
  .documentary-steps li:nth-child(3)::after { display: block; }
  .documentary-solution-row,
  .documentary-solution-row--reverse { grid-template-columns: 1fr; }
  .documentary-solution-row figure { min-height: 260px; }
  .documentary-solution-row--reverse figure { order: 2; }
  .documentary-solution-copy { min-height: 300px; padding: 34px 28px; }
  .documentary-platform__grid { gap: 34px; }
  .documentary-devices,
  .documentary-capabilities { min-height: 360px; }
  .outcome-metrics { grid-template-columns: repeat(2, 1fr); margin-bottom: 28px; }
  .outcome-metrics > div:nth-child(2) { border-right: 0; }
  .outcome-metrics > div:nth-child(-n + 2) { border-bottom: 1px solid #e0e7df; }
  .outcome-metrics > div { padding: 22px 20px; }
  .service-map-panel { grid-template-columns: 1fr; }
  .service-map-panel { min-height: 0; margin-top: 28px; }
  .service-map-panel__copy { padding: 32px 28px; }
  .service-map-panel__copy h3 { font-size: 26px; }
  .service-map { min-height: 320px; }
  .device-mobile { right: 1%; width: 27%; }
  .documentary-about__grid { gap: 34px; padding: 32px 24px; }
  .documentary-about ul { grid-template-columns: 1fr; }
  .about-lead { font-size: 16px; white-space: normal; }
  .about-story-grid,
  .about-values-grid,
  .about-service-grid,
  .about-cooperation { grid-template-columns: 1fr; }
  .about-outlook { padding: 22px 0 0; border-top: 1px solid #dce8df; border-left: 0; }
}