/* XiQin Industrial website styles */
:root {
  --ink: #0a1620;
  --ink-soft: #1a2d3d;
  --steel: #2a4a5e;
  --mist: #d6e2ea;
  --paper: #f2f6f9;
  --paper-deep: #e4edf3;
  --copper: #b86a2f;
  --copper-bright: #e0924a;
  --copper-dim: #8f4e1c;
  --teal: #1f7a7c;
  --white: #ffffff;
  --muted: #3a5060;
  --muted-on-dark: rgba(236, 244, 248, 0.92);
  --line: rgba(10, 22, 32, 0.14);
  --line-light: rgba(255, 255, 255, 0.22);
  --shadow: 0 24px 60px rgba(10, 22, 32, 0.18);
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Manrope", "Noto Sans SC", sans-serif;
  --max: 1120px;
  --nav-h: 88px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --gold: #d4a837;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.6em;
}

p {
  margin: 0 0 1em;
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.4s var(--ease), backdrop-filter 0.4s, box-shadow 0.4s;
}

.site-header.is-scrolled,
.site-header.solid {
  background: rgba(10, 22, 32, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.nav {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.7rem;
  color: var(--white);
  min-width: 0;
  max-width: min(52vw, 420px);
}

.logo-img {
  width: 46px;
  height: auto;
  flex-shrink: 0;
  display: block;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
  width: max-content;
  max-width: 100%;
}

.logo-cn {
  font-family: var(--font-display);
  font-size: clamp(0.68rem, 1.15vw, 0.92rem);
  letter-spacing: 0.02em;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  color: var(--white);
}

.logo-en {
  display: block;
  width: 100%;
  font-size: clamp(0.42rem, 0.68vw, 0.545rem);
  letter-spacing: 0.01em;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.84);
  text-align: justify;
  text-align-last: justify;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  padding: 0.35rem 0;
  transition: color 0.25s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: var(--copper-bright);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--white);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.15rem;
  background: var(--copper);
  color: var(--white) !important;
  border-radius: 2px;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--copper-bright);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-light);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  border-radius: 2px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s, opacity 0.3s;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.55rem;
  border-radius: 2px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, border-color 0.25s, color 0.25s;
}

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

.btn-primary {
  background: var(--copper);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--copper-bright);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.65);
}

.btn-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

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

.btn-dark:hover {
  background: var(--ink-soft);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: rgba(10, 22, 32, 0.25);
}

.btn-outline:hover {
  border-color: var(--ink);
}

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 3rem) 0 5rem;
  color: var(--white);
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(184, 106, 47, 0.28), transparent 55%),
    radial-gradient(ellipse 60% 50% at 10% 80%, rgba(31, 122, 124, 0.25), transparent 50%),
    linear-gradient(145deg, #071018 0%, #122838 42%, #0d1c28 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black 30%, transparent 95%);
  pointer-events: none;
}

.hero-fluid {
  position: absolute;
  right: -8%;
  top: 12%;
  width: min(58vw, 720px);
  height: min(58vw, 720px);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, rgba(214, 226, 234, 0.12), transparent 45%),
    radial-gradient(circle at 65% 60%, rgba(184, 106, 47, 0.2), transparent 50%),
    conic-gradient(from 210deg, rgba(31, 122, 124, 0.15), transparent 40%, rgba(184, 106, 47, 0.18), transparent 75%);
  filter: blur(2px);
  animation: drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}

.hero-ring {
  position: absolute;
  right: 8%;
  top: 22%;
  width: min(42vw, 480px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  animation: spin 48s linear infinite;
  pointer-events: none;
}

.hero-ring::before,
.hero-ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(214, 226, 234, 0.12);
}

.hero-ring::before {
  inset: 12%;
}

.hero-ring::after {
  inset: 28%;
  border-style: dashed;
}

@keyframes drift {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(-4%, 5%) scale(1.06);
  }
}

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

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.brand-hero {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 3.75rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 1.1rem;
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.15s forwards;
}

.hero-title {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.96);
  margin-bottom: 0.85rem;
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.3s forwards;
}

.hero-lead {
  color: rgba(236, 244, 248, 0.94);
  font-size: 1.02rem;
  max-width: 34em;
  margin-bottom: 2rem;
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.45s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.6s forwards;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 4.5rem) 0 4rem;
  color: var(--white);
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 80% at 85% 0%, rgba(184, 106, 47, 0.22), transparent 55%),
    linear-gradient(135deg, #071018, #153040 55%, #0f2430);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.8;
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-brand {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  margin-bottom: 0.75rem;
}

.page-hero h1 {
  font-family: var(--font-body);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.96);
  margin-bottom: 0.75rem;
}

.page-hero p {
  max-width: 38em;
  color: rgba(236, 244, 248, 0.94);
  margin: 0;
}

.section {
  padding: 5.5rem 0;
}

.section-tight {
  padding: 4rem 0;
}

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

.section-mist {
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-deep) 100%);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #9a5620;
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.section-dark .section-label {
  color: #f0a85a;
}

.section-title {
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}

.section-lead {
  color: var(--muted);
  max-width: 40em;
  margin-bottom: 2.5rem;
}

.section-dark .section-lead {
  color: var(--muted-on-dark);
}

.section-dark .topic h3 {
  color: var(--white);
}

.section-dark .topic p {
  color: var(--muted-on-dark);
}

.section-dark .feature-list li {
  color: var(--muted-on-dark);
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}

.split-reverse {
  grid-template-columns: 0.95fr 1.05fr;
}

.visual-panel {
  position: relative;
  min-height: 360px;
  border-radius: 4px;
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 30%, rgba(184, 106, 47, 0.35), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(31, 122, 124, 0.4), transparent 45%),
    linear-gradient(160deg, #122838, #0a1620);
}

.visual-panel.has-photo {
  background: #eef3f7;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.visual-panel.has-photo::after {
  display: none;
}

.visual-panel.has-photo img {
  width: min(100%, 420px);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 18px 40px rgba(10, 22, 32, 0.18));
}

.visual-panel.has-photo .panel-caption {
  color: #1c3344;
  text-shadow: none;
  background: rgba(255, 255, 255, 0.88);
  padding: 0.55rem 0.85rem;
  border-radius: 2px;
}

.visual-panel.has-scene {
  padding: 0;
  background: #0a1620;
}

.visual-panel.has-scene img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  filter: none;
}

.visual-panel.has-scene .panel-caption {
  color: #fff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
  background: rgba(10, 22, 32, 0.45);
}

.visual-panel::after {
  content: "";
  position: absolute;
  inset: 18% 14%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50% 40% 55% 45%;
  animation: morph 12s ease-in-out infinite alternate;
}

.visual-panel .panel-caption {
  position: absolute;
  left: 1.5rem;
  bottom: 1.5rem;
  right: 1.5rem;
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.95rem;
  font-weight: 500;
  z-index: 1;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

.hero-landmark {
  position: absolute;
  right: 3%;
  top: calc(var(--nav-h) + 1.5rem);
  width: min(48vw, 640px);
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  animation: rise 1s var(--ease) 0.35s forwards;
}

.hero-landmark img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 35%;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.45);
}

.product-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.product-gallery figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  padding: 1.25rem 1.25rem 1rem;
  text-align: center;
}

.product-gallery img {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  margin: 0 auto 0.85rem;
}

.product-gallery figcaption {
  font-size: 0.9rem;
  color: #2f4554;
  font-weight: 600;
}

.topic-media {
  margin: 0 0 1rem;
  background: #fff;
  border: 1px solid var(--line);
  padding: 0.85rem;
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.topic-media img {
  max-height: 150px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.section-dark .topic-media {
  background: rgba(255, 255, 255, 0.96);
  border-color: transparent;
}

.industry-thumb {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  overflow: hidden;
  border-radius: 2px;
}

.industry-thumb img {
  max-width: 100%;
  max-height: 150px;
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.industry-card-media {
  margin: 0 0 0.85rem;
  overflow: hidden;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  aspect-ratio: 4 / 3;
}

.industry-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@keyframes morph {
  from {
    border-radius: 50% 40% 55% 45%;
    transform: rotate(0deg);
  }
  to {
    border-radius: 40% 55% 42% 58%;
    transform: rotate(8deg);
  }
}

.feature-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.feature-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 0.75rem;
  align-items: start;
  color: var(--ink);
}

.feature-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--copper);
}

.stats-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: -2.5rem;
  position: relative;
  z-index: 5;
  box-shadow: var(--shadow);
}

.stat {
  background: var(--white);
  padding: 1.75rem 1.5rem;
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.88rem;
  color: #2f4554;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

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

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
}

.topic {
  padding-top: 1.25rem;
  border-top: 2px solid var(--copper);
}

.topic h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.topic p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

.topic a {
  display: inline-block;
  margin-top: 1rem;
  color: #7a4218;
  font-weight: 700;
  font-size: 0.9rem;
}

.topic a:hover {
  color: var(--copper);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0 0;
  font-size: 0.95rem;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--line);
}

.spec-table th {
  width: 32%;
  color: #2f4554;
  font-weight: 600;
  background: rgba(10, 22, 32, 0.04);
}

.spec-table td {
  color: var(--ink);
}

.industry-block {
  display: grid;
  grid-template-columns: 100px 1fr 220px;
  gap: 1.75rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

.industry-block:last-child {
  border-bottom: 0;
}

.industry-index {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--copper);
  line-height: 1;
  padding-top: 0.2rem;
}

.industry-block h2 {
  font-size: 1.45rem;
  margin-bottom: 0.65rem;
}

.industry-block p {
  color: #314858;
  max-width: 52em;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.tag {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(10, 22, 32, 0.2);
  color: #1c3344;
  background: rgba(255, 255, 255, 0.85);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: start;
}

.contact-item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.contact-item:last-child {
  border-bottom: 0;
}

.contact-item dt {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #3a5060;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.contact-item dd {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.contact-item a:hover {
  color: var(--copper);
}

.contact-form {
  background: var(--white);
  padding: 2rem;
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(10, 22, 32, 0.06);
}

.form-row {
  margin-bottom: 1.15rem;
}

.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  border-color: var(--steel);
  background: var(--white);
}

.form-note {
  font-size: 0.85rem;
  color: #3a5060;
  margin-top: 0.85rem;
}

.form-success {
  display: none;
  padding: 1rem;
  background: rgba(31, 122, 124, 0.1);
  border-left: 3px solid var(--teal);
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

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

.form-error {
  display: none;
  padding: 1rem;
  background: rgba(184, 60, 47, 0.1);
  border-left: 3px solid #b83c2f;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

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

.honey-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.cta-band {
  position: relative;
  padding: 4.5rem 0;
  color: var(--white);
  overflow: hidden;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(184, 106, 47, 0.35), transparent 50%),
    linear-gradient(120deg, #0a1620, #1a3548);
}

.cta-band .container {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.4rem;
}

.cta-band p {
  margin: 0;
  color: rgba(236, 244, 248, 0.94);
}

.site-footer {
  background: #060e14;
  color: rgba(236, 244, 248, 0.9);
  padding: 3.5rem 0 2rem;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.footer-grid h4 {
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.footer-links a:hover {
  color: var(--copper-bright);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: rgba(236, 244, 248, 0.82);
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

@media (max-width: 1100px) {
  .logo {
    max-width: min(46vw, 360px);
  }
}

@media (max-width: 960px) {
  .split,
  .split-reverse,
  .contact-layout,
  .footer-grid,
  .grid-3,
  .grid-5 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .stats-band {
    grid-template-columns: 1fr;
  }

  .product-gallery {
    grid-template-columns: 1fr;
  }

  .industry-block {
    grid-template-columns: 64px 1fr;
    gap: 1rem;
  }

  .industry-thumb {
    grid-column: 1 / -1;
    max-width: 320px;
  }

  .hero-landmark {
    width: min(52vw, 360px);
    right: 2%;
    top: calc(var(--nav-h) + 0.75rem);
    opacity: 0.92;
  }

  .hero-ring {
    opacity: 0.35;
  }
}

@media (max-width: 780px) {
  .logo-img {
    width: 38px;
  }

  .logo {
    max-width: calc(100% - 56px);
    gap: 0.5rem;
  }

  .logo-cn {
    font-size: 0.72rem;
    white-space: normal;
  }

  .logo-en {
    font-size: 0.42rem;
    white-space: normal;
    text-align: left;
    text-align-last: left;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(10, 22, 32, 0.97);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.5rem;
    gap: 0;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.35s;
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-cta {
    margin-top: 0.75rem;
    justify-content: center;
  }

  .body-menu-open {
    overflow: hidden;
  }

  .menu-toggle.is-open span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }

  .menu-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.is-open span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 1.5rem, var(--max));
  }

  .section {
    padding: 3.75rem 0;
  }

  .hero {
    padding-bottom: 3.5rem;
  }

  .hero-landmark {
    display: none;
  }

  .contact-form {
    padding: 1.35rem;
  }
}