:root {
  --bg: #f5f6f8;
  --bg-elevated: #ffffff;
  --bg-soft: #e9edf3;
  --ink: #12151c;
  --ink-soft: #3a4254;
  --muted: #6b7385;
  --line: #d5dae3;
  --brand: #1a2744;
  --brand-deep: #0f1829;
  --accent: #d97706;
  --accent-hover: #b45309;
  --teal: #0d9488;
  --hero-overlay: linear-gradient(
    105deg,
    rgba(15, 24, 41, 0.88) 0%,
    rgba(15, 24, 41, 0.55) 48%,
    rgba(15, 24, 41, 0.35) 100%
  );
  --font-display: "Sora", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", system-ui, sans-serif;
  --radius: 4px;
  --shadow: 0 18px 50px rgba(18, 21, 28, 0.08);
  --container: 1180px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.25;
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.section {
  padding: 5.5rem 0;
}

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

.section--brand {
  background: var(--brand-deep);
  color: #f4f6fa;
}

.section-head {
  max-width: 640px;
  margin-bottom: 2.75rem;
}

.section-head h2 {
  font-size: clamp(1.75rem, 2.5vw, 2.35rem);
  color: var(--brand);
}

.section--brand .section-head h2 {
  color: #fff;
}

.section-head p {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.section--brand .section-head p {
  color: rgba(244, 246, 250, 0.72);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 48px;
  padding: 0 1.35rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
    color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}

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

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}

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

.btn--outline {
  background: transparent;
  color: var(--brand);
  border-color: var(--line);
}

.btn--outline:hover {
  border-color: var(--brand);
  background: var(--bg-elevated);
}

.btn--dark {
  background: var(--brand);
  color: #fff;
}

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

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header.is-solid {
  background: rgba(15, 24, 41, 0.94);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.18);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  flex-shrink: 0;
}

.brand__logo {
  width: 48px;
  height: 42px;
  object-fit: contain;
  border-radius: 6px;
  background: #fff;
  flex-shrink: 0;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__text strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.brand__text small {
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
}

.nav a {
  padding: 0.45rem 0.65rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}

.nav a:hover,
.nav a.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav__phone {
  display: none;
}

.lang-switch {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 2px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  gap: 1px;
}

.lang-switch__btn {
  min-width: 30px;
  height: 30px;
  padding: 0 0.45rem;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  border-radius: 3px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.lang-switch__btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.lang-switch__btn.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
}

.header-cta {
  flex-shrink: 0;
  min-height: 42px;
  padding: 0 1.1rem;
  font-size: 0.9rem;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: transparent;
  border-radius: var(--radius);
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: #fff;
  transition: transform 0.25s var(--ease), opacity 0.25s;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Footer */
.site-footer {
  background: var(--brand-deep);
  color: rgba(244, 246, 250, 0.78);
  padding-top: 4rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}

.site-footer h3,
.site-footer h4 {
  color: #fff;
  margin-bottom: 1rem;
}

.site-footer h3 {
  font-size: 1.4rem;
}

.site-footer h4 {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.site-footer__logo {
  width: 120px;
  height: auto;
  display: block;
  margin-bottom: 1rem;
  border-radius: 8px;
  background: #fff;
}

.site-footer__brand p {
  margin-top: 0.35rem;
}

.site-footer__tagline {
  margin-top: 1rem !important;
  max-width: 28ch;
  color: rgba(244, 246, 250, 0.55);
}

.site-footer__qr {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
}

.site-footer__qr img {
  width: 112px;
  height: 112px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  padding: 6px;
}

.site-footer__qr span {
  font-size: 0.85rem;
  color: rgba(244, 246, 250, 0.55);
}

.site-footer ul {
  display: grid;
  gap: 0.55rem;
}

.site-footer a:hover {
  color: var(--accent);
}

.site-footer__contact a {
  color: #fff;
}

.site-footer__bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.25rem 0;
  font-size: 0.88rem;
  color: rgba(244, 246, 250, 0.5);
}

.site-footer__bar .container {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Page hero */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 4.5rem) 0 4rem;
  background: var(--brand-deep);
  color: #fff;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 90% 20%, rgba(217, 119, 6, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 60% at 10% 90%, rgba(13, 148, 136, 0.18), transparent 50%);
  pointer-events: none;
}

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

.page-hero h1 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  max-width: 18ch;
}

.page-hero p {
  margin-top: 1rem;
  max-width: 42rem;
  color: rgba(244, 246, 250, 0.78);
  font-size: 1.05rem;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}
.reveal-delay-2 {
  transition-delay: 0.2s;
}
.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* Home hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: #fff;
  background: var(--brand-deep);
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1.1s var(--ease), transform 6.5s linear;
}

.hero__slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(5rem, 12vh, 8rem);
  padding-top: calc(var(--header-h) + 4rem);
  max-width: 780px;
  margin-left: max(1.25rem, calc((100% - var(--container)) / 2));
  margin-right: auto;
  animation: heroIn 0.85s var(--ease) both;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 1.1rem;
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.hero__content h1 {
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  max-width: 16em;
  font-weight: 600;
}

.hero__subtitle {
  margin-top: 1.1rem;
  max-width: 34em;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.05rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.hero__dots {
  position: absolute;
  z-index: 2;
  right: max(1.25rem, calc((100% - var(--container)) / 2));
  bottom: 2.5rem;
  display: flex;
  gap: 0.5rem;
}

.hero__dots button {
  width: 28px;
  height: 3px;
  border: 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: background 0.25s, width 0.25s;
}

.hero__dots button.is-active {
  width: 42px;
  background: var(--accent);
}

@keyframes heroIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Home sections */
.home-intro {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.home-intro__text h2 {
  font-size: clamp(1.7rem, 2.4vw, 2.2rem);
  color: var(--brand);
  margin-bottom: 1rem;
}

.home-intro__text p {
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.home-intro__text strong {
  color: var(--brand);
}

.home-intro__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 360px;
  background: var(--brand-deep);
}

.home-intro__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 360px;
}

.home-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.home-stats__grid > div {
  padding: 1.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.home-stats__grid strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.8rem);
  color: var(--accent);
  line-height: 1.1;
}

.home-stats__grid span {
  display: block;
  margin-top: 0.55rem;
  color: rgba(244, 246, 250, 0.7);
}

.home-advantages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.home-advantages article {
  padding: 1.75rem 1.5rem;
  background: var(--bg-elevated);
  border-left: 3px solid var(--accent);
}

.home-advantages span {
  font-family: var(--font-display);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

.home-advantages h3 {
  margin: 0.65rem 0 0.7rem;
  font-size: 1.2rem;
  color: var(--brand);
}

.home-advantages p {
  color: var(--muted);
}

.home-more {
  margin-top: 2rem;
}

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

.home-scenes a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 110px;
  padding: 1.25rem;
  text-align: center;
  font-weight: 600;
  color: var(--brand);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  transition: border-color 0.25s, transform 0.25s var(--ease), box-shadow 0.25s;
}

.home-scenes a:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

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

.home-cases__item {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  color: #fff;
}

.home-cases__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
  transition: transform 0.6s var(--ease);
}

.home-cases__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 35%, rgba(15, 24, 41, 0.88));
}

.home-cases__item span {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 1;
  font-weight: 600;
}

.home-cases__item:hover img {
  transform: scale(1.06);
}

.home-cta {
  padding: 0 0 5.5rem;
}

.home-cta__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 3.5rem;
  background:
    linear-gradient(110deg, rgba(15, 24, 41, 0.92), rgba(15, 24, 41, 0.72)),
    url("public/images/photo-1470229722913-7c0e2dbbafd3.jpg")
      center / cover;
  color: #fff;
}

.home-cta__inner h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
}

.home-cta__inner p {
  margin-top: 0.6rem;
  color: rgba(255, 255, 255, 0.78);
}

.home-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* About */
.about-intro,
.about-idea {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-intro__media,
.about-idea__aside {
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 360px;
  background: var(--bg-soft);
}

.about-intro__media img,
.about-idea__aside img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 360px;
}

.about-intro__text h2,
.about-idea h2 {
  color: var(--brand);
  font-size: clamp(1.6rem, 2.3vw, 2.1rem);
  margin-bottom: 1rem;
}

.about-intro__text p,
.about-idea p {
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.about-stats > div {
  background: var(--bg-elevated);
  padding: 1.75rem 1.25rem;
}

.about-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--accent);
}

.about-stats span {
  display: block;
  margin-top: 0.45rem;
  color: var(--muted);
}

.about-scope h2 {
  color: #fff;
  margin: 0.4rem 0 0.8rem;
}

.about-scope__addr {
  margin-top: 1.5rem;
  color: var(--accent);
  font-weight: 600;
}

/* Equipment */
.equipment-block__head {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: end;
  margin-bottom: 2rem;
}

.equipment-block__head h2 {
  color: var(--brand);
  font-size: clamp(1.6rem, 2.3vw, 2.1rem);
  margin-bottom: 0.85rem;
}

.equipment-block__head p {
  color: var(--ink-soft);
}

.equipment-block__head img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius);
}

/* 灯光图 1860×814。列宽至少 560px，才能在不变形的情况下露出右边。 */
.equipment-block__head--lights {
  grid-template-columns: minmax(0, 1fr) minmax(560px, 1.15fr);
  align-items: center;
}

.equipment-block__head--lights > * {
  min-width: 0;
}

.equipment-block__head--lights img {
  width: 100%;
  height: auto;
  aspect-ratio: 1860 / 814;
  object-fit: contain;
  object-position: center;
  background: transparent;
}

.table-wrap {
  overflow-x: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

th,
td {
  text-align: left;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
}

td {
  color: var(--ink-soft);
}

tr:last-child td {
  border-bottom: 0;
}

.equipment-led {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.equipment-led h2 {
  color: var(--brand);
  font-size: clamp(1.6rem, 2.3vw, 2.1rem);
  margin-bottom: 0.85rem;
}

.equipment-led p,
.equipment-led li {
  color: var(--ink-soft);
}

.equipment-led ul {
  display: grid;
  gap: 0.9rem;
  margin: 1.4rem 0;
}

.equipment-led li strong {
  display: block;
  color: var(--brand);
  margin-bottom: 0.2rem;
}

.equipment-led__extra {
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted) !important;
}

.equipment-led__media {
  display: grid;
  gap: 1rem;
}

.equipment-led__media {
  min-width: 0;
}

.equipment-led__media video {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--brand-deep);
}

/* LED 图 1491×960。高度跟着宽度走，避免 240px 把上下裁掉。 */
.equipment-led__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 1491 / 960;
  object-fit: contain;
  object-position: center;
  border-radius: var(--radius);
  background: #fff;
}

/* Cases */
.cases-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.25rem;
}

.cases-tabs button {
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: var(--ink-soft);
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.cases-tabs button.is-active,
.cases-tabs button:hover {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.cases-card {
  background: var(--bg-elevated);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}

.cases-card.is-hidden {
  display: none;
}

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

.cases-card__media {
  overflow: hidden;
  height: 210px;
}

.cases-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease);
}

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

.cases-card__body {
  padding: 1.25rem 1.2rem 1.4rem;
}

.cases-card__body span {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.55rem;
}

.cases-card__body h3 {
  font-size: 1.1rem;
  color: var(--brand);
  margin-bottom: 0.55rem;
}

.cases-card__body p {
  color: var(--muted);
  font-size: 0.95rem;
}

.cases-empty {
  color: var(--muted);
  margin: 2rem 0;
  display: none;
}

.cases-empty.is-show {
  display: block;
}

.cases-note {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--bg-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cases-note p {
  color: var(--ink-soft);
  font-weight: 500;
}

/* Advantages */
.advantages-list {
  display: grid;
  gap: 1.25rem;
}

.advantages-list article {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}

.advantages-list article:first-child {
  padding-top: 0;
}

.advantages-list article > span {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.advantages-list h2 {
  color: var(--brand);
  font-size: 1.55rem;
  margin-bottom: 0.7rem;
}

.advantages-list p {
  color: var(--ink-soft);
  max-width: 58rem;
}

.advantages-cta {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.advantages-cta h2 {
  color: var(--brand);
  margin-bottom: 0.7rem;
}

.advantages-cta p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

/* Process */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.process-steps article {
  background: var(--bg-elevated);
  border-top: 3px solid var(--accent);
  padding: 1.6rem 1.35rem 1.7rem;
}

.process-steps span {
  font-family: var(--font-display);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.process-steps h3 {
  margin: 0.7rem 0 0.65rem;
  color: var(--brand);
  font-size: 1.2rem;
}

.process-steps p {
  color: var(--muted);
}

.process-note {
  margin-top: 2rem;
  color: var(--ink-soft);
  font-weight: 500;
}

.process-pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.process-pricing article {
  background: var(--bg-elevated);
  padding: 1.75rem 1.4rem;
  border: 1px solid var(--line);
}

.process-pricing h3 {
  color: var(--brand);
  margin-bottom: 0.7rem;
}

.process-pricing p {
  color: var(--muted);
}

.process-cta {
  margin-top: 2rem;
}

/* Scenarios */
.scenarios-list {
  display: grid;
  gap: 2rem;
}

.scenarios-list article {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: center;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.scenarios-list article:nth-child(even) {
  direction: rtl;
}

.scenarios-list article:nth-child(even) > * {
  direction: ltr;
}

.scenarios-list__media {
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 260px;
  background: var(--bg-soft);
}

.scenarios-list__media img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  transition: transform 0.55s var(--ease);
}

.scenarios-list article:hover .scenarios-list__media img {
  transform: scale(1.04);
}

.scenarios-list__body span {
  font-family: var(--font-display);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.scenarios-list__body h2 {
  margin: 0.6rem 0 0.75rem;
  color: var(--brand);
  font-size: clamp(1.4rem, 2vw, 1.8rem);
}

.scenarios-list__body p {
  color: var(--ink-soft);
  max-width: 40rem;
}

.scenarios-cta {
  margin-top: 2.5rem;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-info h2,
.contact-form h2 {
  color: var(--brand);
  font-size: 1.45rem;
  margin-bottom: 1.25rem;
}

.contact-info ul {
  display: grid;
  gap: 1rem;
}

.contact-info li span {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.contact-info li a,
.contact-info li strong {
  color: var(--brand);
  font-size: 1.05rem;
  font-weight: 600;
}

.contact-wechat {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.7rem;
}

.contact-wechat img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  padding: 8px;
}

.contact-wechat p {
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-map {
  margin-top: 2rem;
}

.contact-map img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
}

.contact-map p {
  margin-top: 0.85rem;
  color: var(--muted);
}

.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  padding: 1.75rem;
}

.contact-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-form label,
.contact-form fieldset {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.contact-form fieldset {
  border: 0;
  padding: 0;
}

.contact-form legend {
  margin-bottom: 0.55rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 0.75rem 0.85rem;
  color: var(--ink);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(217, 119, 6, 0.25);
  border-color: var(--accent);
}

.contact-services {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.check {
  display: inline-flex !important;
  align-items: center;
  gap: 0.4rem;
  margin: 0 !important;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.check input {
  width: auto;
}

.form-msg {
  margin-top: 1rem;
  font-size: 0.92rem;
  display: none;
}

.form-msg.is-show {
  display: block;
}

.form-msg--ok {
  color: var(--teal);
}

.form-msg--error {
  color: #b91c1c;
}

@media (max-width: 1100px) {
  .nav a {
    padding: 0.4rem 0.45rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 1024px) {
  .home-cases {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (max-width: 960px) {
  .header-cta {
    display: none;
  }

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

  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 0;
    margin: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 1.25rem;
    background: rgba(15, 24, 41, 0.98);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    overflow-y: auto;
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav a {
    padding: 0.95rem 1rem;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav__phone {
    display: block;
    margin-top: 1rem;
    color: var(--accent) !important;
    font-weight: 600 !important;
    border: none !important;
  }

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

@media (max-width: 900px) {
  .home-intro,
  .home-advantages,
  .home-scenes,
  .about-intro,
  .about-idea,
  .about-stats,
  .equipment-block__head,
  .equipment-led,
  .process-steps,
  .process-pricing,
  .contact-layout,
  .contact-form__grid,
  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .scenarios-list article,
  .scenarios-list article:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }
}

@media (max-width: 860px) {
  .home-cases {
    grid-template-columns: 1fr 1fr;
  }

  .home-cta__inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 64px;
  }

  .container {
    width: min(100% - 1.5rem, var(--container));
  }

  .section {
    padding: 3.75rem 0;
  }

  .page-hero {
    padding: calc(var(--header-h) + 3rem) 0 3rem;
  }

  .hero {
    min-height: 92vh;
  }

  .hero__content {
    margin-left: 1.5rem;
    margin-right: 1.5rem;
    max-width: none;
  }

  .hero__dots {
    left: 1.5rem;
    right: auto;
  }
}

@media (max-width: 640px) {
  .cases-grid,
  .home-cases,
  .home-stats__grid {
    grid-template-columns: 1fr;
  }

  .advantages-list article {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
}