:root {
  --bg: #07111f;
  --bg-soft: #0c1a2d;
  --card: rgba(255, 255, 255, 0.86);
  --card-dark: rgba(12, 26, 45, 0.82);
  --text: #122033;
  --muted: #64748b;
  --line: rgba(148, 163, 184, 0.24);
  --primary: #1677ff;
  --primary-dark: #0b4fb3;
  --cyan: #21d4fd;
  --orange: #ffb020;
  --green: #22c55e;
  --white: #ffffff;
  --radius: 24px;
  --shadow: 0 24px 70px rgba(3, 10, 24, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: var(--text);
  background: #f5f8fc;
  overflow-x: hidden;
}

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

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

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

.site-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -3;
  background: linear-gradient(rgba(22, 119, 255, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(22, 119, 255, 0.08) 1px, transparent 1px), radial-gradient(circle at 20% 10%, rgba(33, 212, 253, 0.16), transparent 28%), radial-gradient(circle at 85% 6%, rgba(255, 176, 32, 0.16), transparent 24%), #f5f8fc;
  background-size: 64px 64px, 64px 64px, auto, auto, auto;
}

.orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.36;
  z-index: -2;
  pointer-events: none;
  animation: orbFloat 11s ease-in-out infinite alternate;
}

.orb-one {
  top: 70px;
  left: -130px;
  background: #21d4fd;
}

.orb-two {
  right: -160px;
  top: 440px;
  background: #1677ff;
  animation-delay: -4s;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section-pad {
  padding: 96px 0;
}

.section-pad.compact {
  padding: 18px 0 72px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(245, 248, 252, 0.82);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.navbar {
  width: calc(100% - 56px);
  margin: 0 auto;
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

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

.navbar .brand {
  flex: 0 0 260px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: inline-grid;
  place-items: center;
  border-radius: 15px;
  color: white;
  font-weight: 900;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  box-shadow: 0 14px 32px rgba(22, 119, 255, 0.28);
}

.brand-logo {
  width: 72px;
  height: 46px;
  object-fit: contain;
  border-radius: 12px;
  background: white;
  padding: 5px;
  box-shadow: 0 14px 32px rgba(22, 119, 255, 0.16);
}

.navbar .brand-logo {
  width: 220px;
  height: 70px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.navbar .brand > span {
  display: none;
}

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

.brand strong {
  font-size: 18px;
  line-height: 1.15;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.15em;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1;
}

.nav-links a {
  padding: 12px 13px;
  border-radius: 999px;
  color: #334155;
  font-size: 16px;
  font-weight: 700;
  transition: 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: rgba(22, 119, 255, 0.08);
}

.site-search {
  position: relative;
  width: clamp(180px, 15vw, 260px);
  height: 46px;
  display: flex;
  align-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.28);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.site-search input {
  width: 100%;
  height: 100%;
  padding: 0 46px 0 16px;
  border: 0;
  outline: 0;
  color: #0f172a;
  background: transparent;
  font: inherit;
  font-size: 14px;
}

.site-search button {
  position: absolute;
  right: 5px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: white;
  background: var(--primary);
  cursor: pointer;
}

.site-search-results {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(360px, 86vw);
  display: none;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: 0 24px 54px rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(16px);
}

.site-search-results.open {
  display: grid;
  gap: 6px;
}

.site-search-results a,
.site-search-empty {
  display: grid;
  gap: 5px;
  padding: 12px;
  border-radius: 13px;
  color: #0f172a;
}

.site-search-results a:hover {
  background: rgba(22, 119, 255, 0.08);
}

.site-search-results strong {
  font-size: 15px;
}

.site-search-results span,
.site-search-empty {
  color: #64748b;
  font-size: 13px;
  line-height: 1.5;
}

.hotline-card {
  min-width: 190px;
  display: grid;
  place-items: center;
  gap: 4px;
  padding: 12px 20px 14px;
  border-radius: 12px;
  color: white;
  text-align: center;
  background: linear-gradient(135deg, #355cc4, #4a70db);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 18px 36px rgba(53, 92, 196, 0.28);
}

.hotline-card span {
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 700;
}

.hotline-card strong {
  color: white;
  font-size: 25px;
  line-height: 1.05;
  letter-spacing: 0.02em;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 14px;
  background: white;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.1);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: #0f172a;
  transition: 0.25s ease;
}

.seo-breadcrumb {
  padding: 18px 0 0;
}

.seo-breadcrumb .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: #64748b;
  font-size: 14px;
}

.seo-breadcrumb a {
  color: #0b4fb3;
  font-weight: 800;
}

.seo-breadcrumb span[aria-current="page"] {
  color: #0f172a;
  font-weight: 900;
}

.hero {
  padding-top: 86px;
}

.page-hero {
  padding: 92px 0 72px;
}

.page-hero-card {
  padding: 42px;
  color: white;
  background: linear-gradient(135deg, rgba(7, 17, 31, 0.96), rgba(12, 26, 45, 0.92) 58%, rgba(11, 79, 179, 0.9));
  border-color: rgba(125, 211, 252, 0.24);
}

.page-hero-card h1 {
  max-width: 820px;
  margin: 18px 0 16px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.07em;
}

.page-hero-card p {
  max-width: 760px;
  margin: 0;
  color: #bfd2ea;
  font-size: 18px;
  line-height: 1.9;
}

.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 54px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 13px;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
}

.hero h1 {
  margin: 20px 0 18px;
  font-size: clamp(48px, 5.8vw, 78px);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.07em;
  color: #0a1629;
}

.hero-title {
  display: grid;
  gap: 2px;
}

.title-line {
  display: block;
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
}

.title-accent {
  color: transparent;
  background: linear-gradient(110deg, #0b4fb3, #24c6f0);
  -webkit-background-clip: text;
  background-clip: text;
}

.title-accent-soft {
  background: linear-gradient(110deg, #0b4fb3, #38bdf8);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero p {
  max-width: 650px;
  color: #475569;
  font-size: 18px;
  line-height: 1.9;
}

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

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  overflow: hidden;
}

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

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), #21a7ff);
  box-shadow: 0 18px 42px rgba(22, 119, 255, 0.3);
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-120%) skewX(-20deg);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.38), transparent);
  transition: transform 0.65s ease;
}

.btn-primary:hover::after {
  transform: translateX(120%) skewX(-20deg);
}

.btn-ghost {
  color: #0f172a;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
}

.btn.full {
  width: 100%;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.trust-row span {
  padding: 8px 12px;
  color: #0b4fb3;
  border: 1px solid rgba(22, 119, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  font-weight: 800;
}

.hero-panel {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}

.galaxy-card {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.68));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.galaxy-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(33, 212, 253, 0.24), transparent 32%);
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.galaxy-card:hover::before {
  opacity: 1;
}

.instrument-card {
  width: min(460px, 100%);
  padding: 24px;
  color: #dbeafe;
  background: linear-gradient(145deg, rgba(7, 17, 31, 0.96), rgba(12, 26, 45, 0.92));
  border-color: rgba(33, 212, 253, 0.28);
}

.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  top: -40%;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(33, 212, 253, 0.13), transparent);
  animation: scan 4s linear infinite;
}

.panel-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #93c5fd;
  font-size: 13px;
  letter-spacing: 0.12em;
}

.panel-top strong {
  color: #fff;
}

.scope-screen {
  margin-top: 22px;
  padding: 20px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(6, 95, 70, 0.28), rgba(15, 23, 42, 0.8));
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.scope-screen svg {
  width: 100%;
  height: 210px;
}

.scope-screen path:first-child {
  fill: none;
  stroke: #22c55e;
  stroke-width: 5;
  stroke-linecap: round;
  filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.8));
  stroke-dasharray: 24 12;
  animation: dash 4s linear infinite;
}

.scope-screen path:not(:first-child) {
  stroke: rgba(147, 197, 253, 0.24);
  stroke-width: 1;
}

.dial-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.dial-grid span {
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, #dbeafe 12%, #0f172a 13%, #0f172a 42%, #334155 43%);
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.status-strip {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.status-strip span {
  flex: 1;
  padding: 10px;
  text-align: center;
  color: #7dd3fc;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(125, 211, 252, 0.18);
  font-size: 12px;
  font-weight: 800;
}

.floating-card {
  position: absolute;
  padding: 14px 18px;
  border-radius: 18px;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.16);
  font-weight: 900;
  backdrop-filter: blur(16px);
  animation: floatCard 4s ease-in-out infinite alternate;
}

.fc-one {
  top: 70px;
  left: 0;
}

.fc-two {
  right: 0;
  bottom: 70px;
  animation-delay: -1.5s;
}

.brand-showcase {
  padding: 8px 0;
}

.brand-title {
  margin-bottom: 28px;
}

.brand-title span {
  position: relative;
  display: inline-block;
  color: var(--primary);
  font-size: 26px;
  font-weight: 900;
}

.brand-title span::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -12px;
  width: 56px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), #22c55e);
}

.brand-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
}

.partner-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 190px;
  padding: 32px 18px;
  border-radius: 8px;
  color: #334155;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(226, 232, 240, 0.82);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.08);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.partner-logo:hover {
  transform: translateY(-6px);
  border-color: rgba(22, 119, 255, 0.28);
  box-shadow: 0 26px 48px rgba(15, 23, 42, 0.14);
}

.partner-logo img {
  width: 138px;
  height: 68px;
  object-fit: contain;
}

.partner-logo strong {
  margin-top: 24px;
  color: #334155;
  font-size: 16px;
  line-height: 1.55;
  font-weight: 700;
  text-align: center;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-head.align-left {
  margin: 0;
  text-align: left;
}

.section-head.align-left .eyebrow::before {
  display: block;
}

.section-head h2 {
  margin: 14px 0 14px;
  color: #07111f;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.05em;
}

.section-head p {
  margin: 0;
  color: #64748b;
  font-size: 17px;
  line-height: 1.8;
}

.business-grid,
.solution-grid,
.service-grid,
.news-grid,
.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.business-card,
.solution-card,
.service-card,
.news-card,
.preview-card {
  padding: 26px;
  min-height: 260px;
}

.preview-card {
  display: block;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.preview-card:hover {
  transform: translateY(-5px);
  border-color: rgba(125, 211, 252, 0.42);
}

.preview-card span {
  color: #7dd3fc;
  font-size: 44px;
  line-height: 1;
  font-weight: 900;
}

.preview-card h3 {
  margin: 22px 0 10px;
  font-size: 24px;
}

.preview-card p {
  margin: 0;
  color: #bfd2ea;
  line-height: 1.75;
}

.card-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  font-size: 24px;
  box-shadow: 0 16px 32px rgba(22, 119, 255, 0.22);
}

.business-card h3,
.solution-card h3,
.service-card h3,
.news-card h3 {
  margin: 22px 0 10px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.business-card p,
.solution-card p,
.service-card p,
.news-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.card-tags span,
.tech-tags span,
.value-list span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  color: #0b4fb3;
  background: rgba(22, 119, 255, 0.08);
  border: 1px solid rgba(22, 119, 255, 0.13);
  font-size: 12px;
  font-weight: 900;
}

.section-dark {
  color: white;
  background: linear-gradient(135deg, #07111f, #0c1a2d 62%, #0b4fb3);
}

.section-dark .section-head h2,
.section-dark .about-card h2 {
  color: white;
}

.section-dark .section-head p,
.section-dark .about-card p {
  color: #bfd2ea;
}

.product-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px;
  align-items: start;
}

.product-center-main {
  padding-top: 132px;
}

.category-panel {
  position: sticky;
  top: 132px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.category-panel h3 {
  margin: 0 0 18px;
  color: white;
}

.filter-title {
  padding-top: 16px;
  margin-top: 20px !important;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.category-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 46px;
  padding: 0 14px;
  margin-bottom: 10px;
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  cursor: pointer;
  transition: 0.25s ease;
}

.category-btn:hover,
.category-btn.active {
  color: white;
  background: rgba(22, 119, 255, 0.28);
  border-color: rgba(33, 212, 253, 0.42);
}

.category-btn small {
  color: #93c5fd;
  font-weight: 900;
}

.search-card {
  padding: 22px;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.16);
}

.search-card label {
  display: block;
  margin-bottom: 12px;
  color: white;
  font-weight: 900;
}

.search-box {
  display: flex;
  gap: 12px;
}

.search-box input,
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 16px;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.94);
  outline: none;
  transition: 0.25s ease;
}

.search-box input {
  min-height: 50px;
  padding: 0 16px;
}

.search-box input:focus,
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(22, 119, 255, 0.12);
}

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

.product-card {
  padding: 22px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.product-image {
  display: grid;
  place-items: center;
  height: 190px;
  margin-bottom: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 14px;
}

.product-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.product-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  color: #7dd3fc;
  background: rgba(33, 212, 253, 0.1);
  border: 1px solid rgba(125, 211, 252, 0.22);
  font-size: 12px;
  font-weight: 900;
}

.product-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.product-card p {
  margin: 0 0 18px;
  color: #bfd2ea;
  line-height: 1.7;
}

.product-models {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.product-models span {
  padding: 8px 10px;
  color: #e2e8f0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 12px;
}

.product-actions {
  display: flex;
  gap: 10px;
}

.product-actions a {
  flex: 1;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  border-radius: 14px;
  color: white;
  background: rgba(22, 119, 255, 0.42);
  font-weight: 900;
  transition: 0.25s ease;
}

.product-actions a:last-child {
  color: #dbeafe;
  background: rgba(255, 255, 255, 0.08);
}

.product-actions a:hover {
  transform: translateY(-2px);
  background: var(--primary);
}

.empty-state {
  grid-column: 1 / -1;
  padding: 30px;
  text-align: center;
  color: #cbd5e1;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
}

.old-products-main {
  min-height: 100vh;
}

.old-products-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.products-sidebar {
  position: sticky;
  top: 132px;
  overflow: hidden;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.96);
  border-color: rgba(148, 163, 184, 0.26);
}

.sidebar-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  padding: 0 20px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
}

.sidebar-title.static-title {
  cursor: default;
}

.sidebar-title span {
  transition: 0.25s ease;
}

.sidebar-title.collapsed span {
  transform: rotate(-90deg);
}

.brand-filter {
  display: grid;
  gap: 4px;
  max-height: 360px;
  padding: 14px;
  overflow-y: auto;
  transition: 0.25s ease;
}

.brand-filter.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

.brand-item {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 10px;
  border-radius: 12px;
  color: #475569;
  cursor: pointer;
  transition: 0.25s ease;
}

.brand-item:hover {
  color: var(--primary);
  background: #eff6ff;
}

.brand-checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.sidebar-category {
  border-top: 1px solid #e2e8f0;
}

.category-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 18px;
  color: #334155;
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: 0.25s ease;
}

.category-header:hover {
  color: var(--primary);
  background: #f8fafc;
}

.category-header i {
  width: 22px;
  color: var(--primary);
  font-style: normal;
  text-align: center;
}

.category-header span {
  flex: 1;
  text-align: left;
  font-weight: 800;
}

.category-header b {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: #64748b;
  background: #f1f5f9;
  transition: 0.25s ease;
}

.sidebar-category:not(.collapsed) .category-header b {
  transform: rotate(180deg);
}

.category-submenu {
  max-height: 500px;
  padding: 0;
  margin: 0;
  list-style: none;
  overflow: hidden;
  background: #f8fafc;
  transition: 0.25s ease;
}

.sidebar-category.collapsed .category-submenu {
  max-height: 0;
}

.category-submenu a {
  display: block;
  position: relative;
  padding: 11px 18px 11px 54px;
  color: #64748b;
  font-size: 14px;
  transition: 0.25s ease;
}

.category-submenu a::before {
  content: "";
  position: absolute;
  left: 34px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #cbd5e1;
  transform: translateY(-50%);
  transition: 0.25s ease;
}

.category-submenu a:hover,
.category-submenu a.active {
  color: var(--primary);
  background: #eff6ff;
}

.category-submenu a:hover::before,
.category-submenu a.active::before {
  background: var(--primary);
  transform: translateY(-50%) scale(1.25);
}

.products-content {
  min-width: 0;
}

.legacy-products-toolbar {
  display: grid;
  grid-template-columns: minmax(180px, 0.6fr) minmax(260px, 1fr);
  gap: 20px;
  align-items: center;
  margin-bottom: 22px;
  padding: 24px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.legacy-products-toolbar h1 {
  margin: 6px 0 0;
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -0.06em;
}

.product-section {
  margin-bottom: 26px;
  padding: 26px;
  color: white;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 24px 80px rgba(2, 6, 23, 0.2);
}

.product-section h2 {
  position: relative;
  margin: 0 0 20px;
  padding-bottom: 14px;
  color: white;
  font-size: 26px;
}

.product-section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 86px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
}

.product-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.product-item {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 22px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.08);
  transition: 0.25s ease;
}

.product-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 52px rgba(15, 23, 42, 0.15);
}

.product-item.filtered {
  display: none;
}

.product-item .product-image {
  position: relative;
  height: 178px;
  margin: 0;
  border-radius: 18px;
  background: #f8fafc;
}

.product-item .product-image img {
  padding: 14px;
}

.product-item .product-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: 0;
}

.product-details {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.product-details h3 {
  margin: 0 0 10px;
  color: #0f172a;
  font-size: 22px;
}

.product-details p {
  margin: 0 0 18px;
  color: #475569;
  line-height: 1.75;
}

.btn-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  font-weight: 900;
  transition: 0.25s ease;
}

.btn-more:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(22, 119, 255, 0.25);
}

.empty-category {
  display: grid;
  place-items: center;
  gap: 10px;
  min-height: 140px;
  border-radius: 18px;
  color: #bfd2ea;
  background: rgba(255, 255, 255, 0.06);
  border: 1px dashed rgba(226, 232, 240, 0.2);
}

.empty-category i {
  font-style: normal;
  color: #7dd3fc;
  font-size: 28px;
}

.no-products-message {
  place-items: center;
  gap: 8px;
  min-height: 180px;
  padding: 28px;
  border-radius: 24px;
  color: #cbd5e1;
  text-align: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px dashed rgba(226, 232, 240, 0.2);
}

.no-products-message strong {
  color: white;
  font-size: 22px;
}

.no-products-message span {
  color: #bfd2ea;
}

.product-detail-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 34px;
  padding: 34px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.product-detail-main {
  padding-top: 132px;
}

.product-detail-media {
  display: grid;
  place-items: center;
  min-height: 420px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.94);
  overflow: hidden;
}

.product-detail-media img {
  width: 100%;
  height: 100%;
  max-height: 460px;
  object-fit: contain;
  padding: 24px;
}

.product-detail-copy h1 {
  margin: 18px 0;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.product-detail-copy p {
  margin: 0 0 22px;
  color: #bfd2ea;
  font-size: 17px;
  line-height: 1.9;
}

.detail-actions {
  margin-top: 26px;
}

.product-detail-section {
  margin-top: 24px;
  padding: 30px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.product-detail-section h2 {
  margin: 0 0 18px;
  font-size: 28px;
}

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

.doc-grid a {
  display: grid;
  gap: 6px;
  padding: 18px;
  border-radius: 18px;
  color: white;
  background: rgba(22, 119, 255, 0.24);
  border: 1px solid rgba(125, 211, 252, 0.26);
}

.doc-grid a span {
  color: #bfdbfe;
  font-size: 14px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.detail-card {
  padding: 28px;
}

.detail-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
}

.detail-card p,
.detail-card li {
  color: var(--muted);
  line-height: 1.8;
}

.detail-card ul {
  margin: 0;
  padding-left: 18px;
}

.license-image {
  width: 100%;
  margin-top: 18px;
  border-radius: 18px;
  background: white;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.license-card {
  grid-column: 1 / -1;
}

.license-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 22px;
}

.license-grid figure {
  margin: 0;
  padding: 16px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.22);
}

.license-grid .license-image {
  display: block;
  height: 520px;
  margin-top: 0;
  padding: 12px;
  object-fit: contain;
}

.license-grid figcaption {
  margin-top: 12px;
  color: #0f172a;
  font-weight: 900;
  text-align: center;
}

.partner-intro-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.partner-intro-card {
  display: flex;
  flex-direction: column;
  min-height: 270px;
  padding: 24px;
}

.partner-intro-card img {
  width: 132px;
  height: 58px;
  padding: 8px;
  object-fit: contain;
  border-radius: 16px;
  background: white;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.partner-intro-card h3 {
  margin: 20px 0 10px;
  font-size: 21px;
}

.partner-intro-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
}

.solution-card {
  display: flex;
  flex-direction: column;
}

.solution-card .solution-index {
  color: rgba(22, 119, 255, 0.14);
  font-size: 72px;
  line-height: 0.8;
  font-weight: 900;
}

.solution-card ul {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.solution-card li {
  position: relative;
  padding-left: 18px;
  margin-top: 10px;
  color: #475569;
}

.solution-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.section-gradient {
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.1), rgba(33, 212, 253, 0.08));
}

.dev-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  align-items: center;
}

.dev-stack {
  display: grid;
  gap: 18px;
}

.stack-card,
.process-list {
  padding: 26px;
}

.stack-card h3,
.process-list h3 {
  margin: 0 0 18px;
  font-size: 24px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.process-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
}

.process-item:first-of-type {
  border-top: 0;
}

.process-item span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: white;
  border-radius: 14px;
  background: #07111f;
  font-weight: 900;
}

.process-item strong {
  display: block;
  margin-bottom: 4px;
}

.process-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.service-card {
  min-height: 230px;
}

.repair-showcase-section {
  padding-top: 92px;
}

.repair-showcase {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 38px;
  align-items: center;
}

.repair-copy h1 {
  margin: 16px 0;
  color: #07111f;
  font-size: clamp(42px, 5vw, 70px);
  line-height: 1.05;
  letter-spacing: -0.07em;
}

.repair-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.repair-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0;
}

.repair-highlights span {
  padding: 10px 14px;
  border-radius: 999px;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(148, 163, 184, 0.22);
  font-weight: 900;
}

.repair-scope-list {
  padding: 24px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: var(--shadow-soft);
}

.repair-scope-list strong {
  display: block;
  margin-bottom: 12px;
  color: #0f172a;
  font-size: 20px;
}

.repair-scope-list ul {
  margin: 0;
  padding-left: 18px;
}

.repair-scope-list li {
  color: var(--muted);
  line-height: 1.8;
}

.repair-gallery {
  display: grid;
  gap: 14px;
}

.repair-featured {
  position: relative;
  margin: 0;
  padding: 14px;
  overflow: hidden;
}

.repair-featured img {
  display: block;
  width: 100%;
  height: 430px;
  object-fit: cover;
  border-radius: 24px;
}

.repair-thumb-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.repair-thumb {
  display: block;
  padding: 0;
  border: 0;
  border-radius: 18px;
  background: transparent;
  cursor: pointer;
}

.repair-thumb img {
  width: 100%;
  height: 128px;
  display: block;
  object-fit: cover;
  border-radius: 18px;
  background: white;
  border: 1px solid rgba(148, 163, 184, 0.22);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease;
}

.repair-thumb.active img,
.repair-thumb:hover img {
  border-color: rgba(22, 119, 255, 0.72);
  box-shadow: 0 18px 34px rgba(22, 119, 255, 0.2);
  transform: translateY(-2px);
}

.repair-flow {
  margin-top: 22px;
  padding: 28px;
}

.repair-flow h3 {
  margin: 0 0 22px;
  font-size: 26px;
}

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

.flow-item {
  padding: 20px;
  border-radius: 18px;
  color: white;
  background: linear-gradient(135deg, #07111f, #0b4fb3);
}

.flow-item span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: 50%;
  color: #07111f;
  background: #7dd3fc;
  font-weight: 900;
}

.flow-item strong {
  display: block;
  margin-bottom: 8px;
}

.flow-item p {
  margin: 0;
  color: #dbeafe;
  line-height: 1.65;
  font-size: 14px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.about-card {
  padding: 34px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.about-card h2 {
  margin: 18px 0;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.05em;
}

.value-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.value-list span {
  color: #dbeafe;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.timeline-item strong {
  color: var(--primary);
  font-size: 22px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

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

.metric-card {
  padding: 26px;
  color: white;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
}

.metric-card strong {
  display: block;
  color: #7dd3fc;
  font-size: 46px;
  line-height: 1;
  letter-spacing: -0.05em;
}

.metric-card span {
  display: block;
  margin-top: 12px;
  color: #dbeafe;
}

.news-card {
  min-height: 220px;
}

.news-tag {
  display: inline-flex;
  width: max-content;
  padding: 6px 10px;
  border-radius: 999px;
  color: #0b4fb3;
  background: rgba(22, 119, 255, 0.1);
  font-size: 12px;
  font-weight: 900;
}

.news-card a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  color: var(--primary);
  font-weight: 900;
}

.resources-page .resources-intro {
  padding-top: 92px;
}

.resources-page .section-head h1 {
  max-width: 900px;
  margin: 18px auto 16px;
  color: #07111f;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.12;
  letter-spacing: -0.06em;
}

.resource-purpose-grid,
.resource-article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.resource-article-grid {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.resource-purpose-card {
  padding: 24px;
}

.resource-purpose-card strong {
  display: block;
  margin-bottom: 12px;
  color: #0f172a;
  font-size: 20px;
}

.resource-purpose-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.probe-guide-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.guide-toc {
  position: sticky;
  top: 124px;
  display: grid;
  gap: 12px;
  align-self: start;
  max-height: calc(100vh - 144px);
  overflow: auto;
  padding: 24px;
}

.guide-toc h2 {
  margin: 0 0 8px;
  color: #0f172a;
  font-size: 24px;
}

.guide-toc a {
  padding: 12px 14px;
  border-radius: 14px;
  color: #334155;
  background: rgba(248, 250, 252, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.18);
  font-weight: 800;
  transition: 0.2s ease;
}

.guide-toc a:hover {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  border-color: transparent;
}

.probe-article-list {
  display: grid;
  gap: 24px;
}

.probe-article {
  scroll-margin-top: 128px;
  padding: 34px;
}

.article-kicker {
  width: max-content;
  padding: 7px 12px;
  border-radius: 999px;
  color: #0b4fb3;
  background: rgba(22, 119, 255, 0.1);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.probe-article h2 {
  margin: 18px 0 16px;
  color: #0f172a;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.04em;
}

.probe-article h3 {
  margin: 0 0 12px;
  color: #0f172a;
  font-size: 20px;
}

.probe-article p,
.probe-article li {
  color: #475569;
  line-height: 1.9;
}

.probe-article p {
  margin: 0 0 18px;
}

.probe-article ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
}

.article-split {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 22px 0;
}

.article-split > div,
.brand-guide-grid > div {
  padding: 20px;
  border-radius: 20px;
  background: rgba(248, 250, 252, 0.86);
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.brand-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 22px 0;
}

.brand-guide-grid strong,
.brand-guide-grid span {
  display: block;
}

.brand-guide-grid strong {
  margin-bottom: 8px;
  color: #0f172a;
  font-size: 18px;
}

.brand-guide-grid span {
  color: #475569;
  line-height: 1.8;
}

.article-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.contact-section {
  padding-bottom: 110px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
}

.contact-copy h2 {
  margin: 14px 0;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.06em;
}

.contact-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.contact-list a,
.contact-list span {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: #0f172a;
  font-weight: 800;
}

.contact-form {
  padding: 30px;
}

.contact-static-card {
  padding: 30px;
}

.contact-visual-stack {
  display: grid;
  gap: 24px;
  margin-top: 56px;
}

.campus-card {
  padding: 18px;
  overflow: hidden;
}

.campus-card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 24px;
  background: #f8fafc;
}

.campus-card > div {
  padding: 18px 4px 2px;
}

.campus-card h3 {
  margin: 8px 0 0;
  font-size: 28px;
}

.contact-form h3,
.contact-static-card h3 {
  margin: 0 0 22px;
  font-size: 28px;
}

.contact-form label {
  display: block;
  margin-bottom: 16px;
  color: #334155;
  font-weight: 900;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  margin-top: 8px;
  min-height: 50px;
  padding: 0 14px;
}

.contact-form textarea {
  min-height: 118px;
  padding-top: 12px;
  resize: vertical;
}

.form-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.qr-card {
  padding: 14px;
  text-align: center;
  border-radius: 18px;
  background: rgba(245, 248, 252, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.qr-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 12px;
  background: white;
}

.qr-card strong {
  display: block;
  margin-top: 10px;
  font-size: 14px;
}

.site-footer {
  color: #d8dde6;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    #252525;
  background-size: 44px 44px;
}

.footer-inner {
  width: min(1180px, calc(100% - 80px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr;
  gap: 86px;
  padding: 52px 0 42px;
}

.footer-column h4 {
  position: relative;
  margin: 0 0 24px;
  padding-bottom: 12px;
  color: white;
  font-size: 20px;
  font-weight: 900;
}

.footer-column h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 54px;
  height: 3px;
  border-radius: 999px;
  background: var(--primary);
}

.footer-contact ul {
  display: grid;
  gap: 15px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: start;
  color: #d4d8de;
  line-height: 1.65;
}

.footer-icon {
  color: #36a3ff;
  font-size: 16px;
  line-height: 1.5;
}

.footer-links {
  display: grid;
  align-content: start;
}

.footer-links a {
  width: max-content;
  margin-bottom: 14px;
  color: #d4d8de;
  transition: color 0.22s ease, transform 0.22s ease;
}

.footer-links a:hover {
  color: white;
  transform: translateX(4px);
}

.social-icons {
  display: flex;
  gap: 14px;
}

.social-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  font-size: 14px;
  font-weight: 900;
}

.social-icon svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
}

.social-wechat {
  background: #12b928;
}

.social-qq {
  background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
  padding: 16px 20px 22px;
  text-align: center;
  color: #8f96a3;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.1);
}

.float-tools {
  position: fixed;
  right: 0;
  top: 50%;
  bottom: auto;
  z-index: 15;
  display: grid;
  gap: 0;
  transform: translateY(-50%);
}

.float-item {
  position: relative;
}

.float-btn {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 0;
  appearance: none;
  color: white;
  background: rgba(44, 48, 54, 0.96);
  box-shadow: 0 10px 24px rgba(7, 17, 31, 0.2);
  backdrop-filter: blur(16px);
  cursor: default;
}

.float-item:first-child .float-btn {
  border-radius: 14px 0 0 0;
}

.float-item:last-child .float-btn {
  border-radius: 0 0 0 14px;
}

.float-btn svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
}

.float-wechat {
  background: #16c60c;
}

.float-back-top {
  text-decoration: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
}

.float-back-top:hover {
  color: #ffffff;
  filter: brightness(1.05);
}

.float-panel {
  position: absolute;
  top: 50%;
  right: 68px;
  z-index: 16;
  padding: 12px;
  border-radius: 10px;
  color: #0f172a;
  background: white;
  box-shadow: 0 22px 48px rgba(15, 23, 42, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translate(12px, -50%);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.float-item:hover .float-panel {
  opacity: 1;
  transform: translate(0, -50%);
}

.qr-panel {
  width: 184px;
  text-align: center;
}

.qr-panel img {
  width: 160px;
  height: 160px;
  display: block;
  margin: 0 auto 8px;
  object-fit: contain;
}

.qr-panel span,
.phone-panel span {
  display: block;
  color: #334155;
  font-weight: 800;
}

.phone-panel {
  width: 190px;
  display: grid;
  gap: 6px;
}

.phone-panel strong {
  color: var(--primary);
  font-size: 14px;
}

.phone-panel span {
  font-size: 20px;
  line-height: 1.25;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@keyframes orbFloat {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(34px, 28px, 0) scale(1.08);
  }
}

@keyframes scan {
  to {
    top: 110%;
  }
}

@keyframes dash {
  to {
    stroke-dashoffset: -140;
  }
}

@keyframes floatCard {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-14px);
  }
}

@media (max-width: 1080px) {
  .hero-grid,
  .dev-grid,
  .about-grid,
  .repair-showcase,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-visual-stack {
    margin-top: 0;
  }

  .hero-panel {
    min-height: 460px;
  }

  .business-grid,
  .solution-grid,
  .service-grid,
  .news-grid,
  .preview-grid,
  .detail-grid,
  .partner-intro-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .category-panel {
    position: relative;
    top: auto;
  }

  #categoryList {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  #brandList {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .category-btn {
    margin: 0;
  }

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

  .old-products-layout {
    grid-template-columns: 1fr;
  }

  .products-sidebar {
    position: relative;
    top: auto;
  }

  .legacy-products-toolbar {
    grid-template-columns: 1fr;
  }

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

  .resource-article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .probe-guide-layout {
    grid-template-columns: 1fr;
  }

  .guide-toc {
    position: relative;
    top: auto;
  }
}

@media (max-width: 880px) {
  .navbar {
    min-height: 78px;
  }

  .navbar .brand {
    flex: 0 0 auto;
  }

  .navbar .brand-logo {
    width: 172px;
    height: 56px;
  }

  .menu-toggle {
    display: inline-block;
  }

  .nav-links,
  .site-search,
  .hotline-card {
    display: none;
  }

  .nav-links.open {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 78px;
    display: grid;
    padding: 16px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 22px 50px rgba(15, 23, 42, 0.16);
    backdrop-filter: blur(16px);
  }

  .nav-links.open a {
    padding: 15px;
    font-size: 16px;
  }

  .menu-toggle.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  .menu-toggle.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}

@media (max-width: 720px) {
  .container,
  .navbar {
    width: calc(100% - 28px);
  }

  .section-pad {
    padding: 72px 0;
  }

  .resource-purpose-grid,
  .resource-article-grid,
  .article-split,
  .brand-guide-grid {
    grid-template-columns: 1fr;
  }

  .probe-article {
    padding: 24px;
  }

  .hero {
    padding-top: 54px;
  }

  .hero h1 {
    font-size: clamp(34px, 11.2vw, 56px);
    letter-spacing: -0.06em;
  }

  .hero p,
  .section-head p,
  .contact-copy p {
    font-size: 15px;
  }

  .hero-panel {
    min-height: 380px;
  }

  .instrument-card {
    padding: 18px;
  }

  .scope-screen svg {
    height: 150px;
  }

  .floating-card {
    display: none;
  }

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

  .business-grid,
  .solution-grid,
  .service-grid,
  .news-grid,
  .preview-grid,
  .product-grid,
  .detail-grid,
  .license-grid,
  .partner-intro-grid,
  .metrics-grid,
  .flow-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    width: calc(100% - 28px);
    gap: 34px;
  }

  .page-hero-card {
    padding: 28px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  #categoryList,
  #brandList {
    grid-template-columns: 1fr;
  }

  .product-detail-card {
    padding: 22px;
  }

  .product-detail-media {
    min-height: 280px;
  }

  .product-detail-copy h1 {
    font-size: clamp(30px, 11vw, 42px);
  }

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

  .search-box {
    flex-direction: column;
  }

  .product-actions {
    flex-direction: column;
  }

  .product-center-main,
  .product-detail-main {
    padding-top: 108px;
  }

  .product-section {
    padding: 20px;
  }

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

  .product-item .product-image {
    height: 220px;
  }

  .products-sidebar {
    border-radius: 22px;
  }

  .contact-form {
    padding: 22px;
  }

  .campus-card img {
    height: auto;
  }

  .repair-copy h1 {
    font-size: clamp(36px, 12vw, 52px);
  }

  .repair-featured img {
    height: 300px;
  }

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

  .repair-thumb-grid img {
    height: 110px;
  }

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

  .partner-logo {
    min-height: 158px;
    padding: 24px 14px;
  }

  .partner-logo img {
    width: 118px;
    height: 58px;
  }

  .float-tools {
    left: 14px;
    right: 14px;
    top: auto;
    bottom: 14px;
    grid-template-columns: repeat(4, 1fr);
    transform: none;
  }

  .float-btn {
    width: auto;
    height: 48px;
    border-radius: 16px;
  }

  .float-item:first-child .float-btn,
  .float-item:last-child .float-btn {
    border-radius: 16px;
  }

  .float-panel {
    right: 50%;
    bottom: 58px;
    top: auto;
    transform: translate(50%, 12px);
  }

  .float-item:hover .float-panel {
    transform: translate(50%, 0);
  }
}