:root {
  --red: #dc242c;
  --red-dark: #b51d25;
  --red-soft: #fff1f2;
  --navy: #2f308a;
  --navy-dark: #1f2163;
  --navy-soft: #eef0ff;
  --ink: #20232a;
  --heading: #1c1f26;
  --muted: #626a76;
  --muted-2: #8a919c;
  --bg: #f5f6f8;
  --bg-soft: #fafbfc;
  --line: #e5e7eb;
  --line-strong: #d5d9df;
  --white: #fff;
  --container: 1200px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 16px 40px rgba(30, 35, 45, 0.08);
  --shadow-soft: 0 8px 24px rgba(30, 35, 45, 0.05);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

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

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

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

button {
  cursor: pointer;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  color: var(--heading);
  line-height: 1.22;
  letter-spacing: -0.02em;
}

::selection {
  background: var(--red);
  color: var(--white);
}

:focus-visible {
  outline: 3px solid rgba(220, 36, 44, 0.35);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--white);
  border-radius: 0 0 6px 6px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

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

.section {
  padding: 88px 0;
}

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

.section--tight {
  padding: 64px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 36px;
}

.section-head__copy {
  max-width: 680px;
}

.section-head p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15.5px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--red);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--red);
}

.section-head h2,
.section-title h2 {
  margin: 0;
  font-size: clamp(1.75rem, 2.8vw, 2.35rem);
  font-weight: 800;
}

.section-title p {
  margin: 12px 0 0;
  color: var(--muted);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--red);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.text-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.text-link:hover svg {
  transform: translateX(3px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px rgba(20, 24, 32, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 78px;
}

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

.brand-logo {
  width: 158px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.main-nav > a {
  position: relative;
  padding: 9px 11px;
  color: #4b5563;
  border-radius: 6px;
  font-size: 14.5px;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}

.main-nav > a:hover {
  color: var(--ink);
  background: #f3f4f6;
}

.main-nav > a.active {
  color: var(--red);
  font-weight: 700;
}

.main-nav > a.active::after {
  content: "";
  position: absolute;
  right: 11px;
  bottom: 2px;
  left: 11px;
  height: 2px;
  background: var(--red);
  border-radius: 2px;
}

.mobile-hotline {
  display: none;
}

.lang-switch {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.lang-switch:hover {
  color: var(--red);
  border-color: #f2b8bc;
}

.header-hotline {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 10px;
  margin-left: 2px;
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.header-hotline svg {
  width: 22px;
  height: 22px;
  color: var(--red);
}

.header-hotline small {
  display: block;
  color: var(--muted-2);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.header-hotline strong {
  display: block;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn svg {
  width: 17px;
  height: 17px;
}

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

.btn--primary {
  background: var(--red);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(220, 36, 44, 0.2);
}

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

.btn--ghost {
  background: var(--white);
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--red);
  color: var(--red);
}

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

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

.btn--sm {
  min-height: 38px;
  padding: 0 14px;
  font-size: 13px;
}

.btn--block {
  width: 100%;
}

/* Home hero */
.hero-home {
  position: relative;
  padding: 64px 0 76px;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 18%, rgba(220, 36, 44, 0.07), transparent 26%),
    radial-gradient(circle at 12% 88%, rgba(47, 48, 138, 0.06), transparent 26%),
    linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.hero-home::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -180px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(47, 48, 138, 0.12);
  border-radius: 50%;
  box-shadow: inset 0 0 0 48px rgba(47, 48, 138, 0.025), inset 0 0 0 96px rgba(47, 48, 138, 0.02);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 48px;
  align-items: center;
}

.hero-copy,
.hero-visual,
.about-copy,
.about-panel,
.contact-highlight,
.contact-form-card,
.section-head > *,
.grid-2 > *,
.grid-3 > *,
.grid-4 > *,
.scope-grid > *,
.video-grid > *,
.news-grid > *,
.download-grid > *,
.steps > * {
  min-width: 0;
}

.hero-copy h1 {
  max-width: 680px;
  margin: 0 0 20px;
  font-size: clamp(2.6rem, 4.8vw, 4.15rem);
  font-weight: 800;
  letter-spacing: -0.045em;
}

.hero-lead {
  max-width: 570px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.hero-keywords {
  display: flex;
  flex-wrap: wrap;
  margin: 26px 0 30px;
  color: #4b5563;
  font-size: 14px;
}

.hero-keywords span {
  padding: 0 15px;
  border-right: 1px solid var(--line-strong);
}

.hero-keywords span:first-child {
  padding-left: 0;
}

.hero-keywords span:last-child {
  padding-right: 0;
  border-right: 0;
}

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

.hero-visual {
  position: relative;
}

.hero-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(213, 217, 223, 0.9);
  border-radius: 14px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.hero-card > img {
  width: 100%;
  height: auto;
}

.hero-badge {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
}

.hero-badge--top {
  top: 18px;
  right: 18px;
}

.hero-badge--bottom {
  bottom: 18px;
  left: 18px;
}

/* Stats */
.stats-strip {
  position: relative;
  overflow: hidden;
  padding: 30px 0;
  background: var(--navy);
  color: var(--white);
}

.stats-strip::after {
  content: "";
  position: absolute;
  top: -90px;
  right: 6%;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  box-shadow: inset 0 0 0 34px rgba(255, 255, 255, 0.025);
}

.stats-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  padding: 0 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.stat strong {
  display: block;
  color: var(--white);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.stat span {
  display: block;
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

/* Grids and cards */
.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 20px;
}

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

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

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

.card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-soft);
}

.card h3 {
  margin: 18px 0 9px;
  font-size: 18px;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

.icon-box {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 9px;
  background: var(--red-soft);
  color: var(--red);
}

.icon-box svg {
  width: 22px;
  height: 22px;
}

.icon-box--navy {
  background: var(--navy-soft);
  color: var(--navy);
}

.feature-card {
  min-height: 210px;
}

.feature-card .card-index {
  float: right;
  color: #c8ccd3;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* About preview */
.about-split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 56px;
  align-items: center;
}

.about-panel {
  position: relative;
  min-height: 380px;
  overflow: hidden;
  border-radius: 12px;
  background:
    radial-gradient(circle at 78% 22%, rgba(220, 36, 44, 0.1), transparent 26%),
    linear-gradient(145deg, #24264f, var(--navy-dark));
  color: var(--white);
}

.about-panel__grid {
  position: absolute;
  inset: 0;
  opacity: 0.25;
  background-image: linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 34px 34px;
}

.about-panel__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 380px;
  padding: 34px;
}

.about-panel__content .eyebrow {
  color: #ffb4b8;
}

.about-panel__content .eyebrow::before {
  background: #ffb4b8;
}

.about-panel__content h3 {
  max-width: 360px;
  margin: 0;
  color: var(--white);
  font-size: clamp(1.7rem, 2.6vw, 2.25rem);
  font-weight: 800;
}

.about-panel__meta {
  display: flex;
  gap: 34px;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.about-panel__meta strong {
  display: block;
  color: var(--white);
  font-size: 1.55rem;
  font-weight: 800;
}

.about-panel__meta span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 12.5px;
}

.about-copy h2 {
  margin: 0 0 18px;
  font-size: clamp(1.75rem, 2.8vw, 2.35rem);
  font-weight: 800;
}

.about-copy p {
  margin: 0 0 14px;
  color: var(--muted);
}

.about-points {
  display: grid;
  gap: 14px;
  margin: 26px 0 30px;
}

.about-points li {
  display: flex;
  gap: 12px;
  color: #3f4650;
  font-size: 14.5px;
  list-style: none;
}

.about-points svg {
  flex-shrink: 0;
  width: 19px;
  height: 19px;
  margin-top: 4px;
  color: var(--red);
}

/* Scope */
.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

.scope-card__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.scope-card__head .icon-box {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
}

.scope-card h3 {
  margin: 1px 0 4px;
  font-size: 17.5px;
}

.scope-card__code {
  color: var(--muted-2);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.scope-list {
  margin-top: 18px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.scope-list li + li {
  margin-top: 7px;
}

.scope-list li::marker {
  color: var(--red);
}

.legal-panel {
  margin-top: 28px;
  padding: 0 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.legal-panel summary {
  padding: 22px 0;
  color: var(--ink);
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  list-style: none;
}

.legal-panel summary::-webkit-details-marker {
  display: none;
}

.legal-panel summary::after {
  content: "+";
  float: right;
  color: var(--red);
  font-size: 20px;
  line-height: 1;
}

.legal-panel[open] summary::after {
  content: "−";
}

.legal-text {
  padding: 0 0 24px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 2;
}

.legal-text p + p {
  margin-top: 14px;
}

/* Video */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.video-card {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: inherit;
  text-align: left;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-soft);
}

.video-cover {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 18%, rgba(255, 255, 255, 0.2), transparent 28%),
    linear-gradient(135deg, var(--cover-a, var(--navy)), var(--cover-b, #171a3c));
}

.video-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.38;
  background-image: linear-gradient(rgba(255, 255, 255, 0.09) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.09) 1px, transparent 1px);
  background-size: 32px 32px;
}

.video-cover::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -45px;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  box-shadow: inset 0 0 0 28px rgba(255, 255, 255, 0.025);
}

.video-cover__image {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.video-cover__shade {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(8, 10, 16, 0.05) 30%, rgba(8, 10, 16, 0.52) 100%);
}

.video-cover--has-image::before {
  opacity: 0.12;
}

.video-cover--has-image::after {
  opacity: 0.55;
}

.video-card:hover .video-cover__image {
  transform: scale(1.04);
}

.play-button {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: var(--red);
  box-shadow: 0 10px 30px rgba(13, 17, 28, 0.25);
  transition: transform 0.2s ease;
}

.video-card:hover .play-button {
  transform: scale(1.08);
}

.play-button svg {
  width: 20px;
  height: 20px;
  margin-left: 3px;
}

.video-duration {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 1;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(17, 20, 29, 0.66);
  color: var(--white);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}

.video-body {
  padding: 18px 20px 20px;
}

.video-body h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.video-body p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.video-tag {
  display: inline-block;
  margin-bottom: 9px;
  color: var(--red);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Projects */
.project-card {
  display: flex;
  flex-direction: column;
  min-height: 240px;
}

.project-card .icon-box {
  margin-bottom: 2px;
}

.project-card .card-link {
  margin-top: auto;
  padding-top: 20px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.step__number {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--red-soft);
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.step h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

.project-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 28px;
  padding: 20px 22px;
  border-left: 3px solid var(--red);
  background: var(--red-soft);
  color: #5d3a3c;
  font-size: 14px;
}

.project-note svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  color: var(--red);
}

/* News */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.filter-btn {
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  font-size: 13.5px;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.filter-btn:hover {
  color: var(--red);
  border-color: #f2b8bc;
}

.filter-btn.is-active {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

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

.news-card {
  display: flex;
  flex-direction: column;
  min-height: 235px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.news-card[hidden] {
  display: none;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.news-tag {
  padding: 4px 9px;
  border-radius: 4px;
  background: var(--navy-soft);
  color: var(--navy);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.news-date {
  color: var(--muted-2);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.news-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
}

.news-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

.news-card__foot {
  margin-top: auto;
  padding-top: 20px;
  color: var(--muted-2);
  font-size: 12px;
}

.news-empty {
  display: none;
  padding: 36px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

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

.download-empty {
  grid-column: 1 / -1;
  padding: 48px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--muted);
  text-align: center;
  font-size: 15px;
}

.download-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.download-card__top {
  display: flex;
  gap: 14px;
}

.doc-icon {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 44px;
  height: 52px;
  border-radius: 5px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.download-card h3 {
  margin: 0 0 5px;
  font-size: 16.5px;
}

.download-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted-2);
  font-size: 12px;
}

.download-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13.5px;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 20px;
}

.download-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 13px;
}

.download-note svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--navy);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: start;
}

.contact-highlight {
  position: relative;
  overflow: hidden;
  padding: 32px;
  border-radius: 12px;
  background:
    radial-gradient(circle at 88% 8%, rgba(220, 36, 44, 0.2), transparent 30%),
    linear-gradient(145deg, #232554, var(--navy-dark));
  color: var(--white);
}

.contact-highlight::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -100px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  box-shadow: inset 0 0 0 34px rgba(255, 255, 255, 0.025);
}

.contact-highlight .eyebrow {
  color: #ffb4b8;
}

.contact-highlight .eyebrow::before {
  background: #ffb4b8;
}

.contact-highlight h2 {
  max-width: 380px;
  margin: 0 0 16px;
  color: var(--white);
  font-size: clamp(1.7rem, 2.7vw, 2.25rem);
  font-weight: 800;
}

.contact-highlight p {
  max-width: 400px;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14.5px;
}

.contact-phone {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  color: var(--white);
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.contact-phone svg {
  width: 26px;
  height: 26px;
  color: #ffb4b8;
}

.contact-list {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.contact-list__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 13px 14px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.82);
  font-size: 13.5px;
}

.contact-list__item svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: #ffb4b8;
}

.contact-form-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.contact-form-card h2 {
  margin: 0 0 8px;
  font-size: 1.45rem;
}

.contact-form-card > p {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  color: #424954;
  font-size: 13px;
  font-weight: 600;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--red);
  outline: none;
  box-shadow: 0 0 0 3px rgba(220, 36, 44, 0.1);
}

.form-note {
  margin: 14px 0 0;
  color: var(--muted-2);
  font-size: 12px;
}

/* Inner page hero */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 66px 0 58px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 88% 20%, rgba(220, 36, 44, 0.07), transparent 25%),
    linear-gradient(180deg, #f8f9fb, #fff);
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -130px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(47, 48, 138, 0.1);
  border-radius: 50%;
  box-shadow: inset 0 0 0 36px rgba(47, 48, 138, 0.02);
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted-2);
  font-size: 12.5px;
}

.breadcrumb a:hover {
  color: var(--red);
}

.breadcrumb span {
  color: #c3c8cf;
}

.page-hero h1 {
  max-width: 900px;
  margin: 0 0 16px;
  font-size: clamp(2.1rem, 3.8vw, 3.1rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.page-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.page-hero .hero-keywords {
  margin: 22px 0 0;
}

/* Footer */
.site-footer {
  padding: 64px 0 0;
  border-top: 1px solid var(--line);
  background: var(--bg);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.55fr 0.8fr 0.8fr 1.35fr;
  gap: 46px;
}

.footer-logo {
  width: 158px;
  height: auto;
  margin-bottom: 18px;
}

.footer-tagline {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.footer-note {
  max-width: 330px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.footer-col h3 {
  margin: 4px 0 16px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-col > a {
  display: block;
  margin: 9px 0;
  color: var(--muted);
  font-size: 13.5px;
  transition: color 0.2s ease;
}

.footer-col > a:hover {
  color: var(--red);
}

.footer-contact p {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 0 0 11px;
  color: var(--muted);
  font-size: 13px;
}

.footer-contact svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  color: var(--red);
}

.footer-contact a:hover {
  color: var(--red);
}

.footer-address span {
  max-width: 260px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 52px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.footer-bottom p {
  margin: 0;
  color: var(--muted-2);
  font-size: 12px;
}

.footer-bottom .beian-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  vertical-align: middle;
  white-space: nowrap;
}

.footer-bottom .beian-icon {
  width: 18px;
  height: 20px;
  object-fit: contain;
  flex: none;
}

/* Modal + toast */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 24px;
}

.modal.is-open {
  display: grid;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 18, 25, 0.58);
  backdrop-filter: blur(4px);
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 28px;
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 24px 70px rgba(10, 14, 22, 0.28);
  animation: modal-in 0.22s ease both;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--white);
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
}

.modal-close:hover {
  color: var(--red);
  border-color: #f2b8bc;
}

.modal-media {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  margin-bottom: 22px;
  overflow: hidden;
  border-radius: 8px;
  background:
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.16), transparent 30%),
    linear-gradient(135deg, var(--navy), var(--navy-dark));
  color: var(--white);
}

.modal-media svg {
  width: 54px;
  height: 54px;
  opacity: 0.9;
}

.modal-media video,
.modal-media iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}

.modal-media--embed {
  background: #fff;
}

.modal-media--doc {
  background:
    radial-gradient(circle at 80% 20%, rgba(220, 36, 44, 0.12), transparent 30%),
    linear-gradient(135deg, #fff1f2, #f7f8fa);
  color: var(--red);
}

.modal-kicker {
  margin: 0 0 6px;
  color: var(--red);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.modal-panel h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
}

.modal-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  z-index: 120;
  max-width: min(420px, calc(100% - 32px));
  padding: 12px 18px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--white);
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  color: var(--muted);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease, color 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  color: var(--red);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* Reveal is progressive enhancement; content stays visible without JS. */
.reveal {
  opacity: 1;
  transform: none;
}

.lang-en .hero-copy h1 {
  font-size: clamp(2.3rem, 4.1vw, 3.55rem);
  letter-spacing: -0.035em;
}

.lang-en .hero-lead {
  font-size: 16px;
}

/* Responsive */
@media (max-width: 1080px) {
  .main-nav {
    position: fixed;
    top: 78px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    max-height: calc(100vh - 78px);
    margin: 0;
    padding: 12px 24px 24px;
    overflow: auto;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 18px 30px rgba(20, 24, 32, 0.08);
  }

  .main-nav > a {
    padding: 13px 12px;
    border-radius: 6px;
    font-size: 15.5px;
  }

  .main-nav > a.active {
    background: var(--red-soft);
  }

  .main-nav > a.active::after {
    display: none;
  }

  .mobile-hotline {
    display: flex;
    align-items: center;
    margin-top: 12px;
    padding: 16px 12px 0;
    border-top: 1px solid var(--line);
    color: var(--red);
    font-size: 15px;
    font-weight: 700;
  }

  body.nav-open .main-nav {
    display: flex;
  }

  .header-hotline {
    display: none;
  }

  .lang-switch {
    margin-left: auto;
  }

  .nav-toggle {
    display: flex;
    margin-left: 8px;
  }

  .hero-grid {
    gap: 34px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-main {
    grid-template-columns: 1.3fr 0.8fr 0.8fr 1.2fr;
    gap: 28px;
  }
}

@media (max-width: 900px) {
  .section {
    padding: 68px 0;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 28px;
  }

  .section-head__copy {
    width: 100%;
    max-width: 100%;
  }

  .hero-home {
    padding: 48px 0 60px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-copy h1 {
    max-width: 760px;
  }

  .hero-visual {
    max-width: 680px;
  }

  .about-split,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-panel__content {
    min-height: 300px;
  }

  .about-panel {
    min-height: 300px;
  }

  .grid-3,
  .video-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-main {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-note {
    max-width: 620px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

@media (max-width: 640px) {
  .container {
    width: calc(100% - 32px);
  }

  .header-inner {
    height: 68px;
  }

  .brand-logo {
    width: 138px;
  }

  .main-nav {
    top: 68px;
    max-height: calc(100vh - 68px);
    padding-inline: 16px;
  }

  .hero-home {
    padding-top: 38px;
  }

  .hero-copy h1 {
    font-size: clamp(2.25rem, 10vw, 3.1rem);
  }

  .lang-en .hero-copy h1 {
    font-size: clamp(2rem, 8.6vw, 2.7rem);
  }

  .hero-lead {
    font-size: 15.5px;
  }

  .hero-keywords {
    margin: 22px 0 26px;
    font-size: 13px;
  }

  .hero-keywords span {
    padding: 0 10px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .hero-badge {
    padding: 8px 10px;
    font-size: 11.5px;
  }

  .hero-badge--top {
    top: 12px;
    right: 12px;
  }

  .hero-badge--bottom {
    bottom: 12px;
    left: 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 20px;
  }

  .stat {
    padding: 0 14px;
  }

  .stat:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .stat:nth-child(even) {
    border-left: 1px solid rgba(255, 255, 255, 0.16);
  }

  .stat strong {
    font-size: 1.65rem;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .scope-grid,
  .video-grid,
  .news-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

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

  .card,
  .scope-card,
  .news-card,
  .download-card,
  .step {
    padding: 21px;
  }

  .section {
    padding: 56px 0;
  }

  .page-hero {
    padding: 46px 0 42px;
  }

  .page-hero h1 {
    font-size: clamp(1.9rem, 9vw, 2.5rem);
  }

  .page-hero p {
    font-size: 15px;
  }

  .about-panel__content {
    min-height: 280px;
    padding: 24px;
  }

  .about-panel {
    min-height: 280px;
  }

  .about-panel__meta {
    gap: 24px;
  }

  .contact-form-card,
  .contact-highlight {
    padding: 23px;
  }

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

  .footer-main {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-col > a {
    margin: 7px 0;
  }

  .footer-bottom {
    margin-top: 32px;
  }

  .modal {
    padding: 12px;
  }

  .modal-panel {
    padding: 22px;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ADAS product pages */
.product-hub-hero {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: flex-end;
  background: #11141c;
  color: #fff;
}

.product-hub-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.product-hub-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 12, 18, 0.92) 0%, rgba(10, 12, 18, 0.68) 48%, rgba(10, 12, 18, 0.25) 100%);
}

.product-hub-hero__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  .product-hub-hero__video {
    display: none;
  }
}

/* Product catalog */
.catalog-hero {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  background:
    radial-gradient(circle at 82% 18%, rgba(220, 36, 44, 0.24), transparent 40%),
    radial-gradient(circle at 12% 8%, rgba(47, 48, 138, 0.4), transparent 48%),
    linear-gradient(135deg, #10131f 0%, #171b2b 52%, #20243a 100%);
  color: #fff;
}

.catalog-hero .container {
  position: relative;
  z-index: 2;
  padding-top: 96px;
  padding-bottom: 58px;
}

.catalog-hero .eyebrow {
  color: #ffb3b8;
}

.catalog-hero h1 {
  margin: 16px 0 18px;
  color: #fff;
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.catalog-hero p {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
  line-height: 1.75;
}

.catalog-hero .hero-keywords {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.9);
}

.catalog-hero .hero-keywords span {
  border-color: rgba(255, 255, 255, 0.28);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 36px;
}

.catalog-card {
  position: relative;
  overflow: hidden;
  min-height: 310px;
  display: flex;
  align-items: flex-end;
  border-radius: 18px;
  background: #11141c;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.16);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.catalog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 26px 60px rgba(15, 23, 42, 0.22);
}

.catalog-card__media {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s ease;
}

.catalog-card:hover .catalog-card__media {
  transform: scale(1.05);
}

.catalog-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 10, 16, 0.04) 0%, rgba(8, 10, 16, 0.86) 74%);
}

.catalog-card__body {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 30px;
}

.catalog-card__tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.78);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.catalog-card__tag--ready {
  border-color: rgba(255, 143, 150, 0.55);
  background: rgba(220, 36, 44, 0.22);
  color: #ffd9dc;
}

.catalog-card h2 {
  margin: 16px 0 10px;
  color: #fff;
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  line-height: 1.15;
}

.catalog-card p {
  max-width: 520px;
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14.5px;
  line-height: 1.7;
}

.catalog-card__cta {
  color: #ffb3b8;
  font-size: 14px;
  font-weight: 700;
}

.catalog-card--soon {
  background: linear-gradient(135deg, #171b2b 0%, #252b47 100%);
}

.catalog-card--soon .catalog-card__media {
  display: none;
}

.catalog-card__icon {
  position: absolute;
  top: 26px;
  right: 28px;
  width: 64px;
  height: 64px;
  color: rgba(255, 255, 255, 0.16);
}

.catalog-card__icon svg {
  width: 100%;
  height: 100%;
}

.catalog-note {
  margin-top: 26px;
}

@media (max-width: 900px) {
  .catalog-hero {
    min-height: 360px;
  }

  .catalog-hero .container {
    padding-top: 70px;
    padding-bottom: 44px;
  }

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

  .catalog-card {
    min-height: 280px;
  }
}

.product-hub-hero .container {
  position: relative;
  z-index: 2;
  padding-top: 110px;
  padding-bottom: 64px;
}

.product-hub-hero .eyebrow {
  color: #ffb3b8;
}

.product-hub-hero h1 {
  color: #fff;
  max-width: 780px;
  font-size: clamp(2.7rem, 5vw, 4.5rem);
}

.product-hub-hero p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 700px;
  font-size: 17px;
}

.product-hub-hero .hero-keywords {
  color: rgba(255, 255, 255, 0.9);
}

.product-hub-hero .hero-keywords span {
  border-color: rgba(255, 255, 255, 0.28);
}

.product-hub-hero .btn--ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.08);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.product-card__head {
  padding: 22px 22px 0;
}

.product-card__topline {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
}

.product-card__topline .eyebrow {
  margin: 0;
  font-size: 10.5px;
}

.product-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #eef0ff;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.product-card:hover .product-card__media img {
  transform: scale(1.045);
}

.product-card__code {
  padding: 4px 7px;
  border-radius: 4px;
  background: var(--bg);
  color: var(--ink);
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-card__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 22px 22px;
  flex: 1;
}

.product-card h3 {
  margin: 0 0 16px;
  font-size: 1.22rem;
}

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

.product-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 4px;
}

.product-card__tags span {
  padding: 5px 8px;
  border-radius: 5px;
  background: var(--bg);
  color: var(--muted);
  font-size: 11.5px;
}

.product-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--red);
  font-size: 15px;
  font-weight: 800;
  transition: color .2s ease, gap .2s ease;
}

.product-card__link:hover {
  gap: 10px;
  color: var(--red-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.product-note {
  border-left: 4px solid var(--red);
  background: #fff7f7;
  color: #6b2024;
  padding: 16px 18px;
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 30px;
}

.product-intro {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 44px;
  align-items: center;
}

.product-cover {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow);
}

.product-cover img {
  display: block;
  width: 100%;
  height: auto;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: start;
}

.product-specs {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  border-collapse: collapse;
  background: #fff;
}

.product-specs th,
.product-specs td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.product-specs tr:last-child th,
.product-specs tr:last-child td {
  border-bottom: 0;
}

.product-specs th {
  width: 34%;
  background: var(--bg-soft);
  color: var(--muted);
  font-weight: 600;
}

.product-modules {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.product-module {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.product-module .eyebrow {
  font-size: 10.5px;
}

.product-module h3 {
  margin: 8px 0;
  font-size: 1.12rem;
}

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

.product-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 36px;
  border-radius: 16px;
  background: linear-gradient(120deg, #1f2163, #2f308a 55%, #b51d25);
  color: #fff;
}

.product-cta h2 {
  color: #fff;
  margin: 6px 0 8px;
}

.product-cta p {
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
}

.product-cta .contact-phone {
  color: #fff;
  white-space: nowrap;
}

.product-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(220, 36, 44, .35);
  border-radius: var(--radius-sm);
  background: rgba(220, 36, 44, .06);
  color: var(--red);
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(220, 36, 44, .08);
  transition: border-color .2s ease, background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
}

.product-back:hover {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(220, 36, 44, .2);
}

.product-back--inline {
  margin-top: 0;
  flex: none;
  white-space: nowrap;
}

@media (max-width: 1000px) {
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  .product-hub-hero {
    min-height: 480px;
  }

  .product-hub-hero .container {
    padding-top: 90px;
    padding-bottom: 44px;
  }

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

  .product-cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 26px;
  }
}

/* Document track viewer */
body.cj-doc-open {
  overflow: hidden;
}

.cj-doc-viewer {
  --cj-move-duration: .6s;
  --cj-move-ease: cubic-bezier(.16, 1.04, .3, 1);
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(7, 9, 16, .72);
  backdrop-filter: blur(14px);
}

.cj-doc-viewer.is-open {
  display: flex;
}

.cj-doc-panel {
  position: relative;
  width: min(1560px, 96vw);
  height: min(900px, 94vh);
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(27, 31, 49, .94), rgba(12, 15, 26, .97));
  box-shadow: 0 40px 120px rgba(0, 0, 0, .6), inset 0 1px 0 rgba(255, 255, 255, .08);
}

.cj-doc-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 18%, rgba(255, 255, 255, .08), transparent 34%);
  pointer-events: none;
}

.cj-doc-close {
  position: absolute;
  top: 18px;
  right: 20px;
  z-index: 30;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  color: rgba(255, 255, 255, .8);
  font-size: 25px;
  line-height: 1;
  cursor: pointer;
}

.cj-doc-close:hover {
  background: rgba(255, 255, 255, .13);
}

.cj-doc-viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  cursor: grab;
  perspective: 1600px;
}

.cj-doc-viewport:active {
  cursor: grabbing;
}

.cj-doc-track {
  position: absolute;
  inset: 0;
  transition: transform var(--cj-move-duration) var(--cj-move-ease);
}

.cj-doc-page-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(1320px, 92vw, calc(162vh - 190px));
  aspect-ratio: 16 / 9;
  transform-origin: center center;
  transition: transform var(--cj-move-duration) var(--cj-move-ease), opacity .35s ease;
  will-change: transform, opacity;
}

.cj-doc-viewer.is-opening .cj-doc-page-card {
  transition: none;
}

.cj-doc-paper-stack {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  transform-origin: center center;
  backface-visibility: hidden;
}

.cj-doc-paper {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .6);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 26px 60px rgba(0, 0, 0, .45);
}

.cj-doc-paper img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  user-select: none;
  -webkit-user-drag: none;
}

.cj-doc-paper--front {
  z-index: 3;
}

.cj-doc-paper--blank {
  z-index: calc(3 - var(--depth));
  border-color: #e1e4ea;
  background: #f7f8fa;
  transform: translate(calc(var(--dir) * var(--depth) * 12px), calc(var(--depth) * 8px));
  box-shadow: 0 22px 50px rgba(0, 0, 0, .32);
  transition: opacity .2s ease;
}

.cj-doc-paper--blank::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, .06), transparent 45%);
}

.cj-doc-page-card[data-blanks="0"] .cj-doc-paper--blank,
.cj-doc-page-card[data-blanks="1"] .cj-doc-blank-2,
.cj-doc-viewer.is-moving .cj-doc-paper--blank {
  opacity: 0;
}

.cj-doc-page-card[data-blanks="1"] .cj-doc-blank-1,
.cj-doc-page-card[data-blanks="2"] .cj-doc-paper--blank {
  opacity: 1;
}

.cj-doc-meta {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 42px 6px;
}

.cj-doc-meta h1 {
  margin: 0;
  color: #fff;
  font-size: 20px;
  letter-spacing: -.01em;
}

.cj-doc-sub {
  margin-top: 5px;
  color: var(--muted-2);
  font-size: 12px;
  letter-spacing: .06em;
}

.cj-doc-counter {
  flex: none;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
}

.cj-doc-hint {
  position: relative;
  z-index: 4;
  padding: 12px 42px 28px;
  color: rgba(255, 255, 255, .42);
  font-size: 12px;
  letter-spacing: .08em;
}

.cj-doc-hint b {
  color: rgba(255, 255, 255, .75);
  font-weight: 600;
}

.cj-doc-arrow {
  position: absolute;
  top: 50%;
  z-index: 40;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 50%;
  background: rgba(0, 0, 0, .22);
  color: rgba(255, 255, 255, .78);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
}

.cj-doc-arrow:hover {
  background: rgba(255, 255, 255, .1);
}

.cj-doc-arrow--left {
  left: 22px;
}

.cj-doc-arrow--right {
  right: 22px;
}

@media (max-width: 900px) {
  .cj-doc-panel {
    width: 98vw;
    height: 92vh;
    border-radius: 18px;
  }

  .cj-doc-arrow {
    display: none;
  }

  .cj-doc-meta {
    padding: 0 22px 6px;
  }

  .cj-doc-hint {
    padding: 10px 22px 22px;
  }
}

@media (max-width: 560px) {
  .cj-doc-meta h1 {
    font-size: 16px;
  }

  .cj-doc-sub {
    font-size: 10px;
  }

  .cj-doc-counter {
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cj-doc-page-card,
  .cj-doc-track,
  .cj-doc-paper--blank {
    transition: none !important;
  }
}