:root {
  --primary: #0d3f7a;
  --primary-light: #1a5ea8;
  --primary-dark: #082b55;
  --accent: #e8700a;
  --accent-hover: #cf5e08;
  --bg-light: #f4f7fc;
  --text-main: #1a2338;
  --text-muted: #5a6680;
  --border: #dde4ef;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
  max-width: 100vw;
}

body {
  background: #ffffff;
  color: var(--text-main);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  max-width: 100vw;
}

img {
  max-width: 100%;
}

/* ===== Section Title ===== */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-header .en {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--primary-light);
  font-weight: 600;
  display: block;
  margin-bottom: 0.5rem;
}
.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}
.section-header .divider {
  width: 48px;
  height: 3px;
  background: var(--primary);
  margin: 0.75rem auto 1rem;
  position: relative;
}
.section-header .divider::after {
  content: '';
  position: absolute;
  left: 56px;
  top: 0;
  width: 16px;
  height: 3px;
  background: var(--accent);
}
.section-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 0.65rem 1.8rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--primary-light);
}
.btn-accent {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.65rem 1.8rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
  text-decoration: none;
}
.btn-accent:hover {
  background: var(--accent-hover);
}
.btn-outline {
  display: inline-block;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  padding: 0.6rem 1.7rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.btn-outline-white {
  display: inline-block;
  border: 1.5px solid rgba(255,255,255,0.75);
  color: #fff;
  padding: 0.6rem 1.7rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
  background: transparent;
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes countUp {
  from { opacity: 0; transform: scale(0.8); }
  to   { opacity: 1; transform: scale(1); }
}

.animate-fadeInUp { animation: fadeInUp 0.7s ease both; }
.animate-fadeIn   { animation: fadeIn 0.5s ease both; }
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* ===== Cards ===== */
.product-card {
  background: #fff;
  border: 1px solid var(--border);
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
  overflow: hidden;
}
.product-card:hover {
  box-shadow: 0 8px 32px rgba(13,63,122,0.12);
  transform: translateY(-4px);
  border-color: var(--primary-light);
}
.case-card {
  overflow: hidden;
  position: relative;
}
.case-card img {
  transition: transform 0.4s ease;
}
.case-card:hover img {
  transform: scale(1.05);
}

/* ===== Top Bar ===== */
.top-bar {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: 0.78rem;
  padding: 0.35rem 0;
  letter-spacing: 0.02em;
}
.top-bar a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}
.top-bar a:hover {
  color: #fff;
}

/* ===== Navigation ===== */
.main-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(13,63,122,0.07);
}
.nav-link {
  position: relative;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0 0.25rem;
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.2s;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
}
.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
}

/* ===== Footer ===== */
.site-footer {
  background: #0d1f3c;
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  line-height: 1.9;
}
.site-footer h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1.1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.site-footer a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color 0.2s;
}
.site-footer a:hover {
  color: #fff;
}
.footer-bottom {
  background: #091629;
  color: rgba(255,255,255,0.4);
  font-size: 0.78rem;
  padding: 0.9rem 0;
  text-align: center;
}

/* ===== Stats Strip ===== */
.stats-strip {
  background: var(--primary);
  color: #fff;
}
.stat-item {
  text-align: center;
  padding: 1.75rem 1rem;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.1;
  font-family: "Arial Narrow", Arial, sans-serif;
}
.stat-unit {
  font-size: 1rem;
  font-weight: 400;
  opacity: 0.85;
}
.stat-label {
  font-size: 0.82rem;
  opacity: 0.75;
  margin-top: 0.3rem;
  letter-spacing: 0.05em;
}

/* ===== Page Banner ===== */
.page-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  color: #fff;
  padding: 3.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}
.page-banner h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.page-banner .breadcrumb {
  font-size: 0.83rem;
  opacity: 0.7;
}
.page-banner .breadcrumb a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
}
.page-banner .breadcrumb a:hover {
  color: #fff;
}

/* ===== Certifications tag strip ===== */
.cert-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid #c8d8f0;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 500;
  background: #f0f5ff;
}

/* ===== Application Scenario Cards ===== */
.scenario-card {
  background: #fff;
  border: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: box-shadow 0.25s, transform 0.25s;
}
.scenario-card:hover {
  box-shadow: 0 6px 24px rgba(13,63,122,0.10);
  transform: translateY(-3px);
}
.scenario-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  background: #eef4fb;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scenario-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

/* ===== Contact Form ===== */
.form-input {
  width: 100%;
  border: 1px solid var(--border);
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
  color: var(--text-main);
  background: #fff;
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}
.form-input:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(21,94,168,0.08);
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .section-header h2 { font-size: 1.5rem; }
  .stat-num { font-size: 1.8rem; }
  .page-banner h1 { font-size: 1.5rem; }
}
:root {
  --primary: #e84a24;
  --primary-light: #ff7d34;
  --primary-dark: #c92f18;
  --accent: #ffc343;
  --accent-hover: #ffb21b;
  --accent-soft: #fff0dd;
  --bg-light: #f6f1ea;
  --bg-soft: #fff9f3;
  --bg-strong: #efe6dc;
  --text-main: #2f2b27;
  --text-muted: #6e685f;
  --border: #eadfd4;
  --shadow-soft: 0 20px 50px rgba(202, 83, 31, 0.08);
}

body {
  background: #fffaf5;
  color: var(--text-main);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header.section-header-left {
  text-align: left;
}

.section-header .en {
  display: block;
  margin-bottom: 0.9rem;
  color: #4b4640;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(2.6rem, 4.5vw, 4.5rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.section-header h2 {
  margin: 0;
  color: var(--text-main);
  font-size: clamp(1.7rem, 2.5vw, 2.5rem);
  font-weight: 600;
  line-height: 1.32;
}

.section-header .divider {
  width: 56px;
  height: 3px;
  margin: 1.1rem auto 1.25rem;
  background: var(--primary);
}

.section-header.section-header-left .divider {
  margin-left: 0;
}

.section-header .divider::after {
  left: 64px;
  width: 22px;
  background: var(--accent);
}

.section-header p {
  max-width: 760px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.9;
}

.section-header.section-header-left p {
  margin: 0;
}

.btn-primary,
.btn-accent,
.btn-outline,
.btn-outline-white {
  border-radius: 2px;
  box-shadow: none;
}

.btn-primary {
  background: var(--primary);
  padding: 0.8rem 2rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(232, 74, 36, 0.2);
}

.btn-accent {
  background: var(--accent);
  color: var(--text-main);
  padding: 0.8rem 2rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(255, 179, 27, 0.22);
}

.btn-outline {
  border-width: 1px;
  padding: 0.8rem 1.95rem;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
}

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

.btn-outline-white {
  border-width: 2px;
  border-color: rgba(255, 255, 255, 0.7);
  padding: 0.8rem 2.2rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(4px);
  transition: all 0.3s ease;
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #fff;
  transform: translateY(-1px);
}

.top-bar {
  background: #faf7f2;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-size: 0.74rem;
  padding: 0.45rem 0;
}

.top-bar a {
  color: var(--primary-dark);
}

.top-bar a:hover {
  color: var(--primary);
}

.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(92, 62, 33, 0.06);
  backdrop-filter: blur(10px);
}

.nav-shell {
  max-width: 1320px;
  height: 84px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-brand img {
  height: 46px;
  width: auto;
}

.nav-center {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  padding: 0 0.2rem;
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 84px;
}

.nav-link::after {
  bottom: 11px;
  height: 3px;
  background: var(--primary);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.nav-phone-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.65rem 1rem;
  border: 1px solid #f3c3b3;
  background: var(--accent-soft);
  color: var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.nav-phone-pill:hover {
  color: var(--primary);
  background: #fff5e8;
}

.nav-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.65rem 1rem;
  background: var(--primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.nav-contact-btn:hover {
  background: var(--primary-dark);
}

.nav-menu-button {
  width: 50px;
  height: 50px;
  border: 1px solid #f1c6b8;
  background: #fff;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(232, 74, 36, 0.08);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.nav-menu-button:hover {
  transform: translateY(-1px);
  border-color: var(--primary);
  box-shadow: 0 16px 30px rgba(232, 74, 36, 0.14);
}

.nav-dropdown {
  background: #fff;
  border-top: 1px solid var(--border);
  box-shadow: 0 20px 40px rgba(75, 52, 33, 0.08);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease;
  pointer-events: none;
}

.nav-dropdown-open {
  max-height: 600px;
  opacity: 1;
  pointer-events: auto;
}

.nav-dropdown-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 1rem 1.5rem 1.4rem;
  display: grid;
  gap: 0.75rem;
  transform: translateY(-8px);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-dropdown-open .nav-dropdown-inner {
  transform: translateY(0);
}

.nav-dropdown .nav-dropdown-link {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s;
}

.nav-dropdown-open .nav-dropdown-link {
  opacity: 1;
  transform: translateY(0);
}

.nav-dropdown-open .nav-dropdown-link:nth-child(1) { transition-delay: 0.05s; }
.nav-dropdown-open .nav-dropdown-link:nth-child(2) { transition-delay: 0.1s; }
.nav-dropdown-open .nav-dropdown-link:nth-child(3) { transition-delay: 0.15s; }
.nav-dropdown-open .nav-dropdown-link:nth-child(4) { transition-delay: 0.2s; }
.nav-dropdown-open .nav-dropdown-link:nth-child(5) { transition-delay: 0.25s; }

.nav-dropdown .nav-dropdown-footer {
  opacity: 0;
  transition: opacity 0.3s ease 0.3s;
}

.nav-dropdown-open .nav-dropdown-footer {
  opacity: 1;
}

.nav-dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-main);
  font-size: 0.95rem;
  text-decoration: none;
}

.nav-dropdown-link:hover {
  color: var(--primary);
}

.nav-dropdown-footer {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  padding-top: 0.4rem;
}

.hero-slider {
  position: relative;
  min-height: clamp(520px, 62vw, 760px);
  overflow: hidden;
  background: linear-gradient(135deg, #fff3e8 0%, #f7f2ea 45%, #eef4ff 100%);
}

.hero-track {
  display: flex;
  width: 100%;
  min-height: clamp(520px, 62vw, 760px);
  transition: transform 0.8s ease;
  will-change: transform;
}

.hero-slide {
  position: relative;
  flex: 0 0 100%;
  min-height: clamp(520px, 62vw, 760px);
}

.hero-slide-mask {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 14% 18%, rgba(255, 195, 67, 0.22) 0%, transparent 28%),
    radial-gradient(circle at 88% 24%, rgba(232, 74, 36, 0.14) 0%, transparent 24%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1280px, calc(100% - 3rem));
  margin: 0 auto;
  min-height: clamp(520px, 62vw, 760px);
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
  padding: 5.4rem 0 6.2rem;
}

.hero-copy {
  max-width: 560px;
  text-align: left;
  color: var(--text-main);
  text-shadow: none;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  margin-bottom: 0.8rem;
  padding: 0.48rem 0.9rem;
  border-radius: 999px;
  background: rgba(232, 74, 36, 0.1);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 1;
}

.hero-kicker {
  margin-bottom: 1rem;
  color: #6d665e;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.hero-title {
  margin: 0 0 1.2rem;
  max-width: 12ch;
  color: #2b2520;
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.hero-desc {
  max-width: 540px;
  margin: 0 0 2.3rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 1.45vw, 1.08rem);
  line-height: 1.9;
  opacity: 1;
}

.hero-actions {
  display: flex;
  justify-content: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  min-height: clamp(320px, 38vw, 520px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: clamp(180px, 24vw, 320px);
  height: clamp(180px, 24vw, 320px);
  top: 1rem;
  right: 2rem;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 195, 67, 0.34) 0%, rgba(255, 125, 52, 0.1) 55%, transparent 72%);
  filter: blur(16px);
}

.hero-visual-frame {
  position: relative;
  z-index: 1;
  width: 100%;
  height: clamp(320px, 38vw, 520px);
  border: 1px solid rgba(233, 223, 212, 0.88);
  border-radius: 32px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(252, 248, 243, 0.94) 100%);
  box-shadow: 0 28px 60px rgba(182, 115, 67, 0.14);
}

.hero-slide-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: none;
  transition: transform 0.9s ease, opacity 0.9s ease;
}

.hero-slide-media--poster {
  object-fit: cover;
}

.hero-slide-media--illustration {
  object-fit: contain;
  padding: clamp(1rem, 2vw, 1.8rem);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 8;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(47, 43, 39, 0.12);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  outline: none;
  padding: 0;
  box-shadow: 0 12px 30px rgba(135, 88, 48, 0.12);
}

.hero-arrow:hover {
  transform: translateY(-50%) scale(1.04);
  background: #fff;
  border-color: rgba(232, 74, 36, 0.2);
  color: var(--primary);
}

.hero-arrow.left {
  left: 1.25rem;
}

.hero-arrow.right {
  right: 1.25rem;
}

.hero-indicators {
  position: absolute;
  left: 50%;
  bottom: 2.85rem;
  transform: translateX(-50%);
  z-index: 8;
  display: flex;
  gap: 0.55rem;
}

.hero-indicator {
  width: 34px;
  height: 4px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(47, 43, 39, 0.18);
  cursor: pointer;
  transition: all 0.35s ease;
  outline: none;
}

.hero-indicator:hover {
  background: rgba(47, 43, 39, 0.34);
}

.hero-indicator.active {
  width: 56px;
  background: var(--primary);
}

.hero-counter {
  position: absolute;
  top: 1.55rem;
  right: 1.75rem;
  z-index: 8;
  color: rgba(47, 43, 39, 0.45);
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.site-footer {
  background: #26211d;
  color: rgba(255, 255, 255, 0.74);
}

.site-footer h4 {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.footer-bottom {
  background: #1c1713;
}

.page-banner {
  background: linear-gradient(130deg, #ffc04a 0%, #ff8a21 24%, #f35f1b 58%, #de3a1d 100%);
  padding: 4.6rem 0 4rem;
}

.page-banner::before {
  top: auto;
  bottom: -26%;
  right: -8%;
  width: 620px;
  height: 620px;
  background: rgba(255, 255, 255, 0.08);
}

.page-banner h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  margin-bottom: 0.8rem;
}

.page-banner p {
  max-width: 700px;
  font-size: 1rem;
  line-height: 1.85;
}

.home-page {
  background: #fffaf5;
}

.home-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.home-info-section {
  padding: 5.8rem 0 5rem;
  background: var(--bg-soft);
}

.home-info-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: center;
}

.home-lead-copy {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 2;
}

.home-cert-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.8rem 0 2rem;
}

.cert-tag {
  border-color: #f1ccbd;
  background: #fff4ea;
  color: var(--primary-dark);
}

.home-info-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.home-info-visual {
  position: relative;
  padding: 1rem 0 0 1rem;
}

.home-info-frame {
  padding: 1.15rem;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.home-info-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.home-info-floating {
  position: absolute;
  right: -0.2rem;
  bottom: -1.2rem;
  min-width: 220px;
  padding: 1.35rem 1.5rem;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 18px 34px rgba(232, 74, 36, 0.24);
}

.home-info-year {
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 2.8rem;
  line-height: 1;
}

.home-info-year-text {
  margin-top: 0.45rem;
  font-size: 0.82rem;
  opacity: 0.82;
  letter-spacing: 0.04em;
}

.home-data-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 3.8rem;
  background: var(--border);
}

.home-data-card {
  background: #fff;
  padding: 2.3rem 1.15rem;
  text-align: center;
}

.home-data-number {
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: clamp(2.4rem, 4vw, 4rem);
  line-height: 1;
  font-weight: 600;
  color: #413c37;
}

.home-data-unit {
  color: var(--primary);
}

.home-data-label {
  margin-top: 0.65rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.home-data-sub {
  margin-top: 0.25rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.home-product-section {
  padding: 6rem 0;
  background: #fff;
}

.home-product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.home-product-card {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 18px 38px rgba(182, 115, 67, 0.12);
}

.home-product-card__content {
  position: relative;
  z-index: 2;
  max-width: 54%;
  padding: 2.2rem;
}

.home-product-card__eyebrow {
  margin-bottom: 0.8rem;
  color: rgba(0, 0, 0, 0.48);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.home-product-card__title {
  margin: 0;
  font-size: clamp(1.5rem, 2vw, 2.25rem);
  line-height: 1.18;
  color: var(--text-main);
}

.home-product-card__desc {
  margin-top: 0.8rem;
  color: rgba(0, 0, 0, 0.68);
  font-size: 0.88rem;
  line-height: 1.8;
}

.home-product-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.35rem;
  color: var(--primary-dark);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

.home-product-card__img {
  position: absolute;
  right: 1.4rem;
  bottom: 0;
  width: 40%;
  height: 82%;
  object-fit: contain;
  filter: drop-shadow(0 18px 22px rgba(0, 0, 0, 0.12));
}

.home-application-section {
  padding: 5.2rem 0;
  background: var(--bg-light);
}

.home-application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.home-application-card {
  padding: 1.5rem;
  background: #fff;
  border-top: 3px solid var(--primary);
  box-shadow: 0 16px 30px rgba(125, 82, 49, 0.08);
}

.home-application-index {
  margin-bottom: 1rem;
  color: var(--primary);
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 2rem;
  line-height: 1;
}

.home-application-title {
  margin-bottom: 0.55rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.home-application-desc {
  color: var(--text-muted);
  font-size: 0.84rem;
  line-height: 1.8;
}

.home-advantage-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, #ff6f2a 0%, #e84a24 100%);
  color: #fff;
}

.home-advantage-section .section-header .en,
.home-advantage-section .section-header h2,
.home-advantage-section .section-header p {
  color: #fff;
}

.home-advantage-section .section-header .en {
  opacity: 0.35;
}

.home-advantage-section .section-header .divider {
  background: #fff;
}

.home-advantage-section .section-header .divider::after {
  background: rgba(255, 255, 255, 0.55);
}

.home-advantage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 3rem;
  align-items: center;
}

.home-advantage-media img {
  display: block;
  width: 100%;
  border: 8px solid rgba(255, 255, 255, 0.14);
}

.home-advantage-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.home-advantage-item {
  padding: 1.25rem 1.15rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.home-advantage-no {
  margin-bottom: 0.8rem;
  font-family: "Arial Narrow", Arial, sans-serif;
  font-size: 2rem;
  line-height: 1;
  color: rgba(255, 255, 255, 0.62);
}

.home-advantage-title {
  margin-bottom: 0.45rem;
  font-size: 1rem;
  font-weight: 700;
}

.home-advantage-desc {
  font-size: 0.84rem;
  line-height: 1.8;
  opacity: 0.85;
}

.home-cases-section {
  padding: 6rem 0;
  background: var(--bg-soft);
}

.home-featured-case {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  margin-bottom: 1.4rem;
  background: #fff;
  box-shadow: 0 20px 42px rgba(149, 101, 68, 0.1);
}

.home-featured-case__media {
  min-height: 440px;
}

.home-featured-case__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-featured-case__content {
  padding: 2.7rem 2.4rem;
}

.home-featured-case__meta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home-featured-case__title {
  margin: 0 0 1rem;
  font-size: 1.45rem;
  line-height: 1.45;
  color: var(--text-main);
}

.home-featured-case__desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.95;
}

.home-featured-case__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.75rem 0;
}

.home-featured-case__metric-value {
  display: block;
  color: var(--primary-dark);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}

.home-featured-case__metric-label {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.home-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.home-case-tile {
  background: #fff;
  box-shadow: 0 16px 32px rgba(149, 101, 68, 0.08);
}

.home-case-tile__media {
  height: 230px;
  overflow: hidden;
}

.home-case-tile__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.home-case-tile__body {
  padding: 1.25rem 1.35rem 1.4rem;
}

.home-case-tile__badge {
  margin-bottom: 0.45rem;
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home-case-tile__title {
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
}

.home-network-section {
  padding: 6rem 0;
  background: #fff;
}

.home-network-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 3rem;
  align-items: center;
}

.home-network-image img {
  display: block;
  width: 100%;
  box-shadow: 0 18px 40px rgba(149, 101, 68, 0.12);
}

.home-region-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.6rem 0 2rem;
}

.home-region-tag {
  padding: 0.48rem 0.82rem;
  border: 1px solid var(--border);
  background: var(--bg-light);
  color: var(--text-muted);
  font-size: 0.78rem;
}

.back-to-top {
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  z-index: 60;
  width: 52px;
  height: 52px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff8a21 0%, #e84a24 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 16px 38px rgba(232, 74, 36, 0.28);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(12px) scale(0.92);
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s ease, box-shadow 0.28s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  box-shadow: 0 20px 42px rgba(232, 74, 36, 0.34);
  transform: translateY(-2px) scale(1.02);
}

.back-to-top:active {
  transform: translateY(0) scale(0.98);
}

.back-to-top svg {
  display: block;
}

@media (max-width: 768px) {
  .back-to-top {
    right: 1rem;
    bottom: 1rem;
    width: 46px;
    height: 46px;
  }
}

@media (max-width: 1100px) {
  .nav-center {
    gap: 1.3rem;
  }

  .home-product-card__content {
    max-width: 58%;
  }

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

@media (max-width: 900px) {
  .home-info-grid,
  .home-advantage-grid,
  .home-network-grid,
  .home-featured-case {
    grid-template-columns: 1fr;
  }

  .home-product-grid,
  .home-case-grid,
  .home-advantage-list {
    grid-template-columns: 1fr;
  }

  .home-info-visual {
    order: -1;
  }

  .home-info-floating {
    position: static;
    margin-top: 1rem;
  }
}

/* ===== Nav responsive fix: hide desktop links on < 1024px ===== */
@media (max-width: 1023px) {
  .nav-center {
    display: none !important;
  }
}

@media (min-width: 1024px) {
  .nav-menu-button {
    display: none !important;
  }
}

/* ===== Mobile overrides for inline-styled page sections ===== */
@media (max-width: 900px) {
  /* 所有 main 内部带内联 grid 的 2+ 列强制单列 */
  main section > div[style*="grid-template-columns"],
  main div[style*="grid-template-columns: 1fr 1fr"],
  main div[style*="grid-template-columns: 1fr 1.3fr"],
  main div[style*="grid-template-columns: 1.3fr 1fr"],
  main div[style*="grid-template-columns: 1fr 1.5fr"],
  main div[style*="grid-template-columns: 1.5fr 1fr"],
  main div[style*="grid-template-columns: repeat(3"],
  main div[style*="grid-template-columns: repeat(4"] {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }

  /* 产品/案例/证书等自适应卡片：降低最小列宽 */
  main div[style*="minmax(320px"],
  main div[style*="minmax(340px"],
  main div[style*="minmax(280px"],
  main div[style*="minmax(240px"],
  main div[style*="minmax(220px"] {
    grid-template-columns: 1fr !important;
  }

  main div[style*="minmax(200px"] {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)) !important;
  }

  /* AboutPage 左侧堆叠图片的绝对定位在手机端会溢出 —— 统一禁用 */
  main section img[style*="position: absolute"],
  main section div[style*="position: absolute"][style*="left: -"],
  main section div[style*="position: absolute"][style*="right: -"] {
    position: static !important;
    width: auto !important;
    max-width: 100% !important;
    margin-top: 1rem !important;
  }

  /* ContactPage 4 联系方式格内联风格：分隔线移除 */
  main div[style*="borderRight"],
  main div[style*="border-right"] {
    border-right: none !important;
  }

  /* 统一减小 section 纵向内边距 */
  main section[style*="padding: 5rem 0"],
  main section[style*="padding: 4.5rem 0"],
  main section[style*="padding: 4rem 0"] {
    padding: 2.75rem 0 !important;
  }

  /* 底部 CTA 行从左右布局转成堆叠 */
  main section[style*="linear-gradient(135deg, #2f2924"] > div {
    flex-direction: column !important;
    align-items: flex-start !important;
    text-align: left !important;
  }

  /* 首页底部 CTA：按钮换行时均分宽度 */
  main section[style*="linear-gradient(135deg, #2f2924"] a.btn-accent,
  main section[style*="linear-gradient(135deg, #2f2924"] a.btn-outline-white {
    flex: 1 1 auto;
  }
}

@media (max-width: 768px) {
  /* 内联标题、数字在小屏缩小 */
  main h1[style],
  main h2[style] {
    font-size: clamp(1.25rem, 5.5vw, 1.65rem) !important;
  }

  main h3[style] {
    font-size: clamp(1.1rem, 4.8vw, 1.35rem) !important;
  }

  main section div[style*="font-size: 2.4rem"],
  main section div[style*="font-size: 2.8rem"],
  main section div[style*="font-size: 1.8rem"] {
    font-size: 1.5rem !important;
  }

  /* 页面 banner 内边距缩小 */
  .page-banner {
    padding: 2.25rem 0 2rem !important;
  }

  /* ContactPage 表单内边距缩小 */
  main section > div > div[id="form"] {
    padding: 1.5rem 1.1rem !important;
  }

  /* AboutPage / ContactPage 内联 padding 大块缩小 */
  main section div[style*="padding: 2.5rem"],
  main section div[style*="padding: 2.7rem"],
  main section div[style*="padding: 2.3rem"] {
    padding: 1.5rem 1.25rem !important;
  }

  /* 案例卡片精选大图压缩高度 */
  main section img[style*="height: 400px"] {
    height: 220px !important;
  }

  /* 兜底：任何内联 display:flex + justify-content:space-between 允许自动换行 */
  main div[style*="justify-content: space-between"],
  main div[style*="justifyContent: space-between"] {
    flex-wrap: wrap !important;
  }

  /* 移动端 home-shell / W 内边距收紧 */
  .home-shell,
  main section > div[style*="max-width: 1280px"] {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }

  .nav-shell {
    height: 74px;
  }

  .nav-brand img {
    height: 40px;
  }

  .nav-phone-pill,
  .nav-contact-btn {
    display: none;
  }

  .hero-slider,
  .hero-track,
  .hero-slide {
    min-height: auto;
  }

  .hero-inner {
    width: min(100%, calc(100% - 2rem));
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 4.25rem 0 6rem;
  }

  .hero-copy {
    max-width: none;
    text-align: center;
  }

  .hero-label {
    margin: 0 auto 0.75rem;
  }

  .hero-title {
    max-width: none;
    font-size: clamp(2rem, 9vw, 3rem);
  }

  .hero-desc {
    margin: 0 auto 2rem;
    max-width: 640px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    min-height: 250px;
  }

  .hero-visual::before {
    width: 220px;
    height: 220px;
    top: 0.5rem;
    right: 0.5rem;
  }

  .hero-visual-frame {
    height: clamp(260px, 62vw, 360px);
    border-radius: 24px;
  }

  .hero-slide-media--illustration {
    padding: 0.85rem;
  }

  .hero-arrow {
    width: 42px;
    height: 42px;
  }

  .hero-arrow.left {
    left: 0.45rem;
  }

  .hero-arrow.right {
    right: 0.45rem;
  }

  .hero-indicators {
    bottom: 1.8rem;
  }

  .hero-indicator {
    width: 28px;
  }

  .hero-indicator.active {
    width: 42px;
  }

  .hero-counter {
    top: 1rem;
    right: 1rem;
    font-size: 0.72rem;
  }

  .section-header {
    margin-bottom: 2.6rem;
  }

  .section-header .en {
    font-size: clamp(2rem, 12vw, 3rem);
  }

  .section-header h2 {
    font-size: 1.45rem;
  }

  .home-info-section,
  .home-product-section,
  .home-application-section,
  .home-advantage-section,
  .home-cases-section,
  .home-network-section {
    padding: 4rem 0;
  }

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

  .home-product-card {
    min-height: 360px;
  }

  .home-product-card__content {
    max-width: 100%;
    padding: 1.6rem;
  }

  .home-product-card__img {
    position: relative;
    right: auto;
    bottom: auto;
    display: block;
    width: 68%;
    height: 180px;
    margin: 0 auto 1.2rem;
  }

  .home-application-grid,
  .home-featured-case__metrics {
    grid-template-columns: 1fr;
  }

  .page-banner {
    padding: 3.2rem 0 2.8rem;
  }
}