:root {
  --brand: #1a66ff;
  --brand-2: #0e4fe0;
  --brand-3: #3d8bff;
  --brand-soft: #eaf2ff;
  --navy: #061428;
  --navy-2: #0b1f3d;
  --ink: #1c2433;
  --muted: #667085;
  --line: #e6ebf2;
  --bg: #ffffff;
  --bg-alt: #f5f8fc;
  --shadow: 0 10px 30px rgba(16, 40, 80, 0.08);
  --radius: 8px;
  --header: 78px;
  --max: 1200px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  min-width: 0;
  max-width: 100%;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
[id] { scroll-margin-top: 96px; }
button, input, textarea, select { font-family: inherit; }
ul { list-style: none; }

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

.en {
  font-family: Outfit, "Noto Sans SC", sans-serif;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header);
  background: #fff;
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s, border-color .25s;
  overflow: visible;
}

.site-header.is-scrolled {
  box-shadow: 0 6px 24px rgba(10, 30, 70, .08);
  border-bottom-color: var(--line);
}

.header-inner {
  height: var(--header);
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-img {
  height: 50px;
  width: auto;
  display: block;
}

.footer-logo { display: inline-block; }

.footer-logo .logo-img { height: 46px; }

.logo-mark {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #5aa2ff, var(--brand) 55%, #0839b5);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 16px rgba(26, 102, 255, .35);
  position: relative;
  overflow: hidden;
}

.logo-mark svg { width: 28px; height: 28px; }

.logo-text { line-height: 1.15; }
.logo-text strong {
  display: block;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .5px;
}
.logo-text span {
  display: block;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.nav {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 2px;
}

.nav a {
  position: relative;
  padding: 8px 10px;
  font-size: 14.5px;
  font-weight: 500;
  color: #2a3344;
  white-space: nowrap;
  transition: color .2s;
}

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

.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .nav a:hover::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 2px;
    height: 2px;
    background: var(--brand);
    border-radius: 2px;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-left: auto;
}

.search-box {
  display: flex;
  align-items: center;
  width: 168px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid #d9e2ef;
  border-radius: 18px;
  background: #f8fbff;
  transition: border-color .2s, box-shadow .2s;
}

.search-box:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 102, 255, .12);
  background: #fff;
}

.search-box input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 13px;
  width: 100%;
}

.search-box svg { color: #7b8798; flex-shrink: 0; }

.hotline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px 0 14px;
  border: 0;
  border-radius: 21px;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .4px;
  background: linear-gradient(180deg, #3b8bff 0%, var(--brand) 55%, var(--brand-2) 100%);
  box-shadow: 0 8px 18px rgba(26, 102, 255, .32);
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, filter .2s;
}

.hotline:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(26, 102, 255, .4);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: auto;
  min-width: 42px;
  height: 42px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: #243044;
  line-height: 1;
}

.menu-toggle-bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.menu-toggle-bars span {
  display: block;
  width: 16px;
  height: 2px;
  background: #243044;
}

.menu-toggle-text { white-space: nowrap; }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 520px;
  height: 600px;
  overflow: hidden;
  color: #fff;
}

.hero-track,
.hero-slide {
  position: absolute;
  inset: 0;
}

.hero-slide {
  opacity: 0;
  visibility: hidden;
  transition: opacity .7s ease, visibility .7s ease;
}

.hero-slide.is-on {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
}

.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 12, 40, .42) 0%, rgba(6, 12, 40, .16) 36%, transparent 58%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  max-width: 1200px;
  padding-right: 42%;
}

.hero h1 {
  font-size: clamp(32px, 4.4vw, 52px);
  font-weight: 800;
  letter-spacing: 1px;
  line-height: 1.2;
  text-shadow: 0 8px 30px rgba(0, 0, 0, .28);
}

.hero p {
  margin: 16px 0 0;
  max-width: 460px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .92);
  letter-spacing: .4px;
}

.hero-cta {
  margin-top: 28px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 22px 0 24px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  background: rgba(10, 18, 48, .72);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 10px 24px rgba(0, 16, 48, .28);
  transition: transform .2s, background .2s;
}

.hero-cta span { font-size: 16px; }

.hero-cta:hover {
  transform: translateY(-2px);
  background: rgba(10, 18, 48, .9);
}

.hero-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 28px;
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 2;
}

.hero-dots button {
  width: 8px;
  height: 8px;
  min-width: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .4);
  cursor: pointer;
  appearance: none;
}

.hero-dots button.is-on {
  background: #fff;
  width: 22px;
  border-radius: 8px;
}

.hero-nav {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 48px;
  height: 48px;
  margin-top: -24px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%;
  background: rgba(8, 16, 40, .42);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  backdrop-filter: blur(8px);
  transition: background .2s, transform .2s;
}

.hero-nav:hover {
  background: rgba(8, 16, 40, .72);
  transform: scale(1.05);
}

.hero-prev { left: 24px; }
.hero-next { right: 80px; }

.hero-nav[hidden],
.hero-dots[hidden],
.hero[hidden] { display: none !important; }

/* ========== Sections ========== */
.section { padding: 88px 0 80px; }
.section-alt { background: var(--bg-alt); }

.section-head {
  text-align: center;
  margin-bottom: 42px;
}

.section-head .en {
  color: #6ea4ff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.4px;
  text-transform: uppercase;
}

.section-head h2 {
  margin-top: 6px;
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 800;
  letter-spacing: 1px;
}

.section-head h2 em {
  font-style: normal;
  color: var(--brand);
}

.section-head .rule {
  width: 42px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--brand), #79b2ff);
}

.section-head p.sub {
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
}

.more-wrap { text-align: center; margin-top: 42px; }

.btn-more,
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 196px;
  height: 46px;
  padding: 0 28px;
  border: 0;
  border-radius: 4px;
  background: var(--brand);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(26, 102, 255, .25);
  transition: background .2s, transform .2s;
}

.btn-more:hover,
.btn-primary:hover {
  background: var(--brand-2);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 0 14px;
  border-radius: 3px;
  background: var(--brand);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  transition: background .2s, transform .2s;
}

.btn-ghost:hover { background: var(--brand-2); }

.btn-ghost.outline {
  background: #fff;
  color: var(--brand);
  border: 1px solid var(--brand);
}

.btn-ghost.outline:hover {
  background: var(--brand);
  color: #fff;
}

/* ========== Creative cards ========== */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.media-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}

.media-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(16, 40, 80, .14);
}

.media-card .thumb {
  height: 210px;
  overflow: hidden;
  position: relative;
}

.media-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}

.media-card:hover .thumb img { transform: scale(1.08); }

.media-card .body { padding: 22px 22px 24px; }

.media-card h3 {
  font-size: 20px;
  font-weight: 700;
}

.media-card p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13.5px;
  min-height: 66px;
}

.media-card .actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

/* ========== Multimedia ========== */
.filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: -8px 0 28px;
}

.filter-tabs button {
  height: 38px;
  padding: 0 18px;
  border: 1px solid #c9d8f0;
  background: #fff;
  color: #3a4658;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: .2s;
}

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

.card-grid-3.tight { gap: 18px; }

.overlay-card {
  position: relative;
  height: 220px;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.overlay-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}

.overlay-card:hover img { transform: scale(1.08); }

.overlay-card .bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: linear-gradient(90deg, rgba(16, 74, 210, .92), rgba(26, 102, 255, .88));
  color: #fff;
}

.overlay-card .bar h3 {
  font-size: 16px;
  font-weight: 600;
}

.overlay-card .bar a {
  font-size: 13px;
  opacity: .95;
  white-space: nowrap;
}

.overlay-card .bar a:hover { text-decoration: underline; }

/* ========== CTA banner ========== */
.cta-banner {
  position: relative;
  padding: 0;
  color: #fff;
  overflow: hidden;
}

.cta-photo {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 0;
  width: 58%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  min-height: 280px;
  align-items: center;
}

.cta-copy {
  position: relative;
  z-index: 2;
  padding: 56px 0 56px 8px;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, #0b3ec4 0%, #1a66ff 48%, rgba(12, 58, 180, .2) 100%);
  pointer-events: none;
}

.cta-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: .35;
  pointer-events: none;
}

.cta-copy h2 {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 1px;
}

.cta-copy p {
  margin-top: 10px;
  color: rgba(255,255,255,.88);
  max-width: 520px;
}

.checks {
  display: flex;
  gap: 22px;
  margin: 18px 0 26px;
  flex-wrap: wrap;
}

.checks li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.check-ico {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  color: var(--brand);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 800;
}

.btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 148px;
  height: 46px;
  padding: 0 24px;
  border-radius: 4px;
  background: #111827;
  color: #fff;
  font-weight: 600;
  transition: background .2s, transform .2s;
}

.btn-dark:hover {
  background: #000;
  transform: translateY(-1px);
}

/* ========== Scene cards ========== */
.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.scene-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}

.scene-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 36px rgba(16, 40, 80, .14);
}

.scene-card .thumb { height: 168px; overflow: hidden; }
.scene-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.scene-card:hover img { transform: scale(1.08); }
.scene-card .body { padding: 18px 18px 22px; }
.scene-card h3 { font-size: 18px; font-weight: 700; }
.scene-card p {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
  min-height: 72px;
}

/* ========== Featured cases ========== */
.cases-section {
  background: #fff;
  overflow: hidden;
  padding-bottom: 72px;
}

.cases-section .more-wrap { margin-top: 42px; }

.case-showcase {
  display: grid;
  grid-template-columns: minmax(220px, .32fr) minmax(0, .68fr);
  gap: 32px 56px;
  align-items: center;
}

.case-steps {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 32px;
  padding: 0 8px 0 28px;
}

.case-steps::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e6e6ea;
}

.case-step {
  position: relative;
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
}

.case-step:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 6px;
  border-radius: 4px;
}

.case-step.is-on::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #111;
}

.case-step .num {
  display: block;
  font-family: Outfit, "Noto Sans SC", sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: #c5cad3;
}

.case-step h3 {
  margin-top: 6px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: #8a919c;
  transition: color .2s;
}

.case-step.is-on h3 {
  font-size: 22px;
  font-weight: 800;
  color: #111;
}

.case-step p {
  display: none;
  margin-top: 8px;
  color: #9aa1ab;
  font-size: 13px;
  line-height: 1.7;
}

.case-step.is-on p {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-stage {
  min-width: 0;
  background: linear-gradient(165deg, #d7e8ff 0%, #eaf3ff 46%, #f7fbff 100%);
  border-radius: 32px;
  padding: 28px;
}

.case-photo {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 0;
  overflow: hidden;
  border-radius: 14px;
  background: #0b1a33;
  box-shadow: 0 18px 40px rgba(26, 70, 140, .16);
}

.case-photo img,
.case-photo video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.case-photo img {
  object-fit: cover;
}

.case-photo video {
  object-fit: cover;
  background: #0b1a33;
  opacity: 0;
  pointer-events: none;
}

.case-photo.is-active video {
  opacity: 1;
  pointer-events: auto;
}

.case-photo.is-active img { opacity: 0; }

.case-play {
  position: absolute;
  inset: 0;
  z-index: 2;
  border: 0;
  background: transparent;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.case-play-ico {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(0, 0, 0, .55);
  display: grid;
  place-items: center;
  padding-left: 4px;
  box-shadow: none;
  transition: transform .2s, background .2s;
}

.case-play-ico svg {
  width: 22px;
  height: 22px;
}

#case-photo .case-play-ico svg {
  width: 32px;
  height: 32px;
}

.case-play:hover .case-play-ico {
  transform: scale(1.06);
  background: rgba(0, 0, 0, .68);
}

.case-photo.is-playing .case-play { display: none; }

.case-vbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  display: none;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px 10px 6px;
  background: linear-gradient(180deg, transparent, rgba(6, 12, 32, .82));
}

.case-photo.is-active .case-vbar { display: flex; }

.case-vbar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
}

.case-vbtn {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.case-vbtn:hover { background: rgba(255,255,255,.14); }

.case-vbtn .ico-pause,
.case-vbtn .ico-mute,
.case-vbtn .ico-exit { display: none; }

.case-photo.is-playing .case-toggle .ico-play { display: none; }
.case-photo.is-playing .case-toggle .ico-pause { display: block; }
.case-photo.is-muted .case-mute .ico-vol { display: none; }
.case-photo.is-muted .case-mute .ico-mute { display: block; }
.case-photo.is-fs .case-fs .ico-enter { display: none; }
.case-photo.is-fs .case-fs .ico-exit { display: block; }

.case-vtime {
  color: #fff;
  font-size: 13px;
  white-space: nowrap;
  min-width: 78px;
}

.case-vbar-space { flex: 1; }

.case-vseek {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 18px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}

.case-vseek::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 3px;
  background: rgba(255,255,255,.38);
}

.case-vseek::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(255,255,255,.18);
}

.case-vseek::-moz-range-track {
  height: 3px;
  border-radius: 3px;
  background: rgba(255,255,255,.38);
}

.case-vseek::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: 0;
  border-radius: 50%;
  background: #fff;
}

.case-photo:fullscreen,
.case-photo:-webkit-full-screen {
  width: 100%;
  height: 100%;
  min-height: 100%;
  aspect-ratio: auto;
  background: #000;
  border-radius: 0;
}

.case-photo:fullscreen video,
.case-photo:-webkit-full-screen video {
  object-fit: contain;
}

/* ========== Video case intro ========== */
.video-case {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: stretch;
  min-width: 0;
}

.video-stage {
  position: relative;
  z-index: 0;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  aspect-ratio: 16 / 9;
  background: #0b1a33;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.video-stage video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
  display: block;
  background: #0b1a33;
}

.video-play {
  position: absolute;
  inset: 0;
  border: 0;
  background: linear-gradient(180deg, rgba(6, 16, 40, .12), rgba(6, 16, 40, .46));
  color: #fff;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 2;
}

.video-play em {
  font-style: normal;
  font-size: 14px;
  letter-spacing: 1px;
}

.video-play-ico {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--brand);
  display: grid;
  place-items: center;
  box-shadow: 0 12px 28px rgba(26, 102, 255, .38);
  padding-left: 4px;
  transition: transform .2s, background .2s;
}

.video-play:hover .video-play-ico {
  transform: scale(1.06);
  background: var(--brand-2);
}

.video-stage.is-playing .video-play { display: none; }

.video-stage.is-fs {
  border-radius: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
}

.video-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  height: 48px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(180deg, transparent, rgba(6, 12, 32, .82));
}

.video-ctrl {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,.14);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.video-ctrl:hover { background: rgba(255,255,255,.24); }

.video-ctrl .ico-pause { display: none; }
.video-stage.is-playing .video-ctrl .ico-play { display: none; }
.video-stage.is-playing .video-ctrl .ico-pause { display: block; }

.video-time {
  color: #fff;
  font-size: 12px;
  white-space: nowrap;
  min-width: 86px;
}

.video-seek {
  flex: 1;
  height: 4px;
  accent-color: #1a66ff;
  cursor: pointer;
}

.video-play { bottom: 48px; }

.video-side {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

.video-slide {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}

.video-slide-btn {
  height: 32px;
  border: 0;
  background: #f5f8fc;
  color: #3a4658;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.video-slide-btn:hover { background: #eaf2ff; color: var(--brand); }

.video-list-view {
  height: 246px;
  overflow: hidden;
}

.video-list {
  display: flex;
  flex-direction: column;
  padding: 6px 10px;
  gap: 8px;
  transition: transform .35s ease;
}

.video-now {
  padding: 22px 22px 16px;
  border-bottom: 1px solid var(--line);
}

.video-now .en {
  color: var(--brand);
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.video-now h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.35;
}

.video-now p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
}

.video-stage.is-fs video { object-fit: contain; }

.video-case-item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 8px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: inherit;
  flex-shrink: 0;
}

.video-case-item:hover,
.video-case-item.is-on {
  background: #f5f8fc;
  border-color: #dce7f7;
}

.video-thumb {
  position: relative;
  display: block;
  height: 60px;
  border-radius: 6px;
  overflow: hidden;
  background: #dfe3e8;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumb i {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(8, 16, 40, .62);
}

.video-thumb i::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 8px;
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent #fff;
}

.video-meta b {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.video-meta small {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

/* ========== Contact page ========== */
.contact-body { background: #f5f8fc; }

.contact-layout {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 32px;
  align-items: start;
}

.info-title { font-size: 20px; margin-bottom: 8px; }

.info-item {
  display: flex;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

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

.info-ico {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.info-item h4 { font-size: 15px; font-weight: 700; }
.info-item p { font-size: 14px; color: var(--muted); margin-top: 2px; line-height: 1.7; }
.info-item a:hover { color: var(--brand); }

.contact-form-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 30px 32px 32px;
}

.contact-form-card h3 { font-size: 20px; }
.form-hint { color: var(--muted); font-size: 13px; margin: 6px 0 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.map-card {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(120deg, #0e4fe0, #1a66ff);
  border-radius: 12px;
  padding: 28px 32px;
  color: #fff;
}

.map-pin {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255,255,255,.16);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.map-text { flex: 1; }
.map-text h3 { font-size: 18px; }
.map-text p { font-size: 13.5px; color: rgba(255,255,255,.85); margin-top: 4px; }
.map-text a { text-decoration: underline; }

.map-card .btn-more {
  background: #fff;
  color: var(--brand);
  box-shadow: none;
  min-width: 150px;
}

.map-card .btn-more:hover { background: #eef4ff; }

/* ========== Services cards ========== */
.svc-section {
  background: #fff;
  color: var(--ink);
}

.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.svc-card {
  background: #f4f6fa;
  border: 1.5px solid transparent;
  border-radius: 18px;
  padding: 32px 28px 28px;
  min-height: 236px;
  transition: transform .25s, box-shadow .25s, background .25s, border-color .25s;
}

.svc-card:hover {
  background: #fff;
  transform: translateY(-4px);
  border-color: var(--brand);
  box-shadow: 0 16px 36px rgba(26, 102, 255, .14);
}

.svc-ico {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
}

.svc-ico svg {
  width: 56px;
  height: 56px;
  display: block;
}

.svc-card h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .2px;
  line-height: 1.35;
  color: #1a1d24;
}

.svc-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ========== Capability list ========== */
.cap-list {
  border-top: 1px solid var(--line);
}

.cap-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.cap-row h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
}

.cap-row ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px 20px;
}

.cap-row li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: #4b5565;
}

.cap-row li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand-soft);
  border: 1px solid var(--brand);
}

.cap-row li::after {
  content: "";
  position: absolute;
  left: 3.5px;
  top: 10px;
  width: 5px;
  height: 3px;
  border-left: 1.6px solid var(--brand);
  border-bottom: 1.6px solid var(--brand);
  transform: rotate(-45deg);
}

/* ========== FAQ ========== */
#faq { background: #fff; }

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 10px 28px;
}

.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 4px;
  background: none;
  border: 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  transition: color .2s;
}

.faq-q:hover { color: var(--brand); }

.faq-ico {
  position: relative;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid #c4cfdd;
  transition: transform .25s, background .25s, border-color .25s;
}

.faq-ico::before,
.faq-ico::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: #7b8798;
  transform: translate(-50%, -50%);
  transition: background .25s;
}

.faq-ico::before { width: 10px; height: 1.6px; }
.faq-ico::after { width: 1.6px; height: 10px; }

.faq-item.is-open .faq-ico {
  transform: rotate(45deg);
  background: var(--brand);
  border-color: var(--brand);
}

.faq-item.is-open .faq-ico::before,
.faq-item.is-open .faq-ico::after { background: #fff; }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.faq-a p {
  padding: 0 4px 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

.faq-item.is-open .faq-a { max-height: 220px; }

/* ========== Quality delivery / process ========== */
.process-section { background: #fff; }

.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.promise-card {
  position: relative;
  background: #fff;
  border: 0;
  padding: 48px 28px 40px;
  text-align: center;
  min-height: 0;
}

.promise-card:not(:nth-child(3n)) {
  border-right: 1px solid #e8edf4;
}

.promise-card:nth-child(-n+3) {
  border-bottom: 1px solid #e8edf4;
}

.promise-card:hover {
  background: #f8fbff;
}

.gico {
  width: 92px;
  height: 92px;
  margin: 0 auto 18px;
}

.gico img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.promise-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: #1a1d24;
  line-height: 1.4;
}

.promise-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ========== Partners ========== */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.partner {
  min-width: 0;
  height: 100px;
  background: #fff;
  border: 1px solid #edf1f7;
  border-radius: 4px;
  display: grid;
  place-items: center;
  padding: 12px 14px;
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}

.partner img {
  max-width: 100%;
  max-height: 64px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.partner:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.82);
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(4, 1fr);
  gap: 32px;
  padding-bottom: 48px;
}

.footer-brand .logo-text strong,
.footer-brand .logo-text span { color: #fff; }
.footer-brand .logo-text span { opacity: .7; }

.footer-brand .tel {
  margin-top: 22px;
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  letter-spacing: .5px;
}

.footer-brand .addr {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,.7);
}

.qr-row {
  display: flex;
  gap: 16px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.qr-item {
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.7);
  flex: 0 0 auto;
}

.qr-box {
  width: 88px;
  height: 88px;
  background: #fff;
  border-radius: 6px;
  padding: 6px;
  margin-bottom: 8px;
  overflow: hidden;
}

.qr-box img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  display: block;
}

.site-footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
  font-weight: 700;
}

.site-footer .links a {
  display: block;
  padding: 5px 0;
  font-size: 13px;
  color: rgba(255,255,255,.68);
  transition: color .2s;
}

.site-footer .links a:hover { color: #fff; }

.copyright {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 16px 0 20px;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.45);
}

.copyright a { color: rgba(255,255,255,.55); }
.copyright a:hover { color: #fff; }
.copyright-icp { white-space: nowrap; }

/* ========== Float rail ========== */
.float-rail {
  --rail-w: 180px;
  --rail-tab: 44px;
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  width: var(--rail-w);
  max-height: calc(100vh - 24px);
  background: linear-gradient(180deg, #2f7dff 0%, #1a66ff 46%, #0e4fe0 100%);
  color: #fff;
  border-radius: 12px 0 0 12px;
  box-shadow: 0 12px 28px rgba(6, 20, 40, .28);
  overflow-x: hidden;
  overflow-y: auto;
}

.float-rail__dock { display: none; }

.float-rail__panel {
  position: relative;
  padding: 34px 14px 12px;
}

.float-rail__collapse {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255,255,255,.88);
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
  line-height: 0;
}

.float-rail__collapse:hover { background: rgba(255,255,255,.16); }

.float-rail__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 0 2px;
  text-align: center;
}

.float-rail__name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0;
  white-space: nowrap;
}

.float-rail__cert {
  margin: 6px 0 0;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: .04em;
}

.float-rail__rule {
  height: 1px;
  margin: 12px 2px;
  background: rgba(255,255,255,.42);
}

.float-rail__phone {
  text-align: center;
  padding: 2px 0 4px;
}

.float-rail__label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
}

.float-rail__num {
  display: block;
  margin-top: 6px;
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.2;
  white-space: nowrap;
}

.float-rail__num:hover { opacity: .88; }

.float-rail__qr {
  width: 140px;
  margin: 2px auto 0;
  padding: 10px;
  background: #fff;
  border-radius: 8px;
}

.float-rail__qr img {
  width: 120px;
  height: 120px;
  object-fit: contain;
}

.float-rail__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 12px;
  padding: 0 2px;
}

.float-rail__quote,
.float-rail__top {
  border: 0;
  background: transparent;
  color: rgba(255,255,255,.92);
  font-size: 12px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.float-rail__quote:hover,
.float-rail__top:hover { color: #fff; text-decoration: underline; }

.float-rail__tab,
.float-rail__dock-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 100%;
  min-height: 64px;
  padding: 10px 4px;
  border: 0;
  border-bottom: 1px solid rgba(255,255,255,.18);
  background: transparent;
  color: #fff;
  font-size: 11px;
  cursor: pointer;
  text-align: center;
  line-height: 1.2;
}

.float-rail__tab:hover,
.float-rail__dock-btn:hover { background: rgba(6, 20, 40, .16); }

.float-rail__dock-btn:last-child { border-bottom: 0; }

.float-rail.is-collapsed {
  width: var(--rail-tab);
}

.float-rail.is-collapsed .float-rail__dock { display: flex; flex-direction: column; }
.float-rail.is-collapsed .float-rail__panel { display: none; }

/* ========== Modal ========== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(6, 16, 36, .55);
  display: none;
  place-items: center;
  padding: 24px;
}

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

.modal-card {
  width: min(480px, 100%);
  background: #fff;
  border-radius: 12px;
  padding: 28px 28px 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}

.modal-card h3 { font-size: 22px; }
.modal-card .hint { margin: 6px 0 18px; color: var(--muted); font-size: 13px; }

.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; font-weight: 600; }
.field input,
.field textarea {
  width: 100%;
  border: 1px solid #d7e0ee;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 14px;
  outline: none;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(26, 102, 255, .12);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.btn-plain {
  height: 42px;
  padding: 0 18px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: #111827;
  color: #fff;
  padding: 12px 18px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: .3s;
  z-index: 300;
}

.toast.is-on {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========== Inner pages ========== */
.page-banner {
  height: 220px;
  display: grid;
  place-items: center;
  color: #fff;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(6, 22, 58, .55), rgba(8, 28, 78, .72)),
    url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.page-banner h1 { font-size: 34px; font-weight: 800; letter-spacing: 2px; }
.crumb { margin-top: 8px; font-size: 13px; color: rgba(255,255,255,.8); }
.crumb a:hover { color: #fff; }

.page-body { padding: 64px 0 80px; }

.prose {
  max-width: 860px;
  margin: 0 auto;
  color: #3a4658;
  font-size: 15px;
}

.prose h2 { color: var(--ink); margin: 28px 0 12px; font-size: 22px; }
.prose p { margin-bottom: 14px; }

.about-wrap {
  width: min(860px, calc(100% - 48px));
  max-width: 860px;
  min-width: 0;
  margin: 0 auto;
  overflow: hidden;
}

.about-logo-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 8px 0 0;
  overflow: hidden;
}

.about-logo-grid .partner {
  width: 100%;
  min-width: 0;
  overflow: hidden;
}

.about-logo-grid .partner img {
  width: 100%;
  height: 56px;
  max-width: 100%;
  max-height: 56px;
  object-fit: contain;
  object-position: center;
}

.about-partners-cta { margin-top: 28px; text-align: center; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 28px 0 8px;
  min-width: 0;
}

.stats-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px 10px;
  text-align: center;
}

.stat b {
  display: block;
  font-size: 32px;
  color: var(--brand);
  font-weight: 800;
}

.stat span { font-size: 13px; color: var(--muted); }

.detail-layout {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 32px;
  align-items: start;
}

.detail-cover {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.detail-cover img { width: 100%; height: 420px; object-fit: cover; }

.side-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.side-box h3 { margin-bottom: 10px; }
.side-box p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }

.form-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-list li {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
}

.contact-list b { color: var(--ink); }

/* ========== Search overlay ========== */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 180;
  background: rgba(6, 16, 36, .45);
  display: none;
  place-items: start center;
  padding-top: 120px;
}

.search-overlay.is-open { display: grid; }

.search-panel {
  width: min(560px, calc(100% - 32px));
  background: #fff;
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
}

.search-panel input {
  width: 100%;
  height: 46px;
  border: 1px solid #d7e0ee;
  border-radius: 8px;
  padding: 0 14px;
  font-size: 15px;
  outline: none;
}

.search-results { margin-top: 10px; }
.search-results a {
  display: block;
  padding: 10px 8px;
  border-bottom: 1px solid #f0f3f8;
  font-size: 14px;
}

.search-results a:hover { color: var(--brand); }

/* ========== Case detail ========== */
.cd-page { background: #fff; }

.cd-crumb {
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.cd-crumb a:hover { color: var(--brand); }

.cd-hero {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 40px 48px;
  align-items: center;
  padding: 28px 0 72px;
}

.cd-stage {
  position: relative;
  padding: 28px 52px;
  background: #f5f8fc;
  border-radius: 12px;
}

.cd-phones {
  --cd-main-w: 210px;
  --cd-main-h: 430px;
  --cd-side-w: 168px;
  --cd-side-h: 344px;
  --cd-overlap: 30px;
  --cd-shift: calc(var(--cd-main-w) / 2 - var(--cd-overlap) + var(--cd-side-w) / 2);
  position: relative;
  height: var(--cd-main-h);
  min-height: var(--cd-main-h);
}

.cd-phone {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--cd-side-w);
  height: var(--cd-side-h);
  padding: 9px 7px 12px;
  border: 0;
  border-radius: 28px;
  background: #111827;
  box-shadow: 0 16px 36px rgba(16, 40, 80, .16);
  overflow: hidden;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  transform: translate(-50%, -50%);
  transition: left .45s cubic-bezier(.22, .8, .28, 1), width .45s cubic-bezier(.22, .8, .28, 1), height .45s cubic-bezier(.22, .8, .28, 1), opacity .3s ease, padding .45s;
}

.cd-phone[data-slot="prev"] {
  left: calc(50% - var(--cd-shift));
  opacity: .78;
  z-index: 1;
}

.cd-phone[data-slot="main"] {
  left: 50%;
  width: var(--cd-main-w);
  height: var(--cd-main-h);
  padding: 11px 8px 14px;
  opacity: 1;
  z-index: 3;
  cursor: default;
}

.cd-phone[data-slot="next"] {
  left: calc(50% + var(--cd-shift));
  opacity: .78;
  z-index: 1;
}

.cd-phone.is-jump { transition: none !important; }
.cd-phone.is-ghost { opacity: 0 !important; pointer-events: none; }

.cd-phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 18px;
  display: block;
}

.cd-switch {
  position: absolute;
  top: 50%;
  z-index: 4;
  width: 40px;
  height: 40px;
  margin-top: -20px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  color: #1a1d24;
  box-shadow: 0 8px 20px rgba(16, 40, 80, .14);
  cursor: pointer;
  display: grid;
  place-items: center;
}

.cd-switch:hover { background: #f4f7ff; color: var(--brand); }
.cd-switch.prev { left: 10px; }
.cd-switch.next { right: 10px; }

.cd-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: #14b8a6;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.cd-intro h1 {
  margin-top: 14px;
  font-size: 36px;
  font-weight: 900;
  line-height: 1.25;
  color: #111;
}

.cd-meta {
  margin-top: 10px;
  font-size: 14px;
  color: var(--muted);
}

.cd-intro > p {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.cd-block-video { padding: 48px 0; }

.cd-video-stage {
  display: flex;
  justify-content: center;
  background: none;
  border-radius: 0;
  padding: 0;
}

.cd-tablet {
  width: min(960px, 100%);
  padding: 11px;
  border-radius: 28px;
  background: linear-gradient(180deg, #2a2a2d 0%, #0b0b0d 55%, #000 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.18),
    0 1px 0 #111,
    0 16px 36px rgba(8, 16, 32, .22);
}

.cd-tablet .case-photo {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  min-height: 0;
  border-radius: 18px;
  box-shadow: none;
}

.cd-tablet .case-photo img,
.cd-tablet .case-photo video {
  object-fit: contain;
  background: #000;
}

.cd-tablet .case-play-ico svg {
  width: 32px;
  height: 32px;
}

.cd-tablet .case-photo:fullscreen,
.cd-tablet .case-photo:-webkit-full-screen {
  border-radius: 0;
}

.cd-block {
  padding: 64px 0;
}

.cd-block.is-alt { background: #f7f9fc; }

.cd-mods {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 48px;
}

.cd-mod {
  position: relative;
  min-height: 120px;
  padding: 18px 8px 8px 0;
}

.cd-mod .no {
  position: absolute;
  right: 8px;
  top: -8px;
  font-family: Outfit, sans-serif;
  font-size: 72px;
  font-weight: 700;
  color: rgba(26, 102, 255, .08);
  line-height: 1;
  pointer-events: none;
}

.cd-mod h3 {
  position: relative;
  font-size: 20px;
  font-weight: 800;
}

.cd-mod p {
  position: relative;
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 92%;
  white-space: pre-line;
}

.cd-show {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 20px;
  row-gap: 12px;
  align-items: start;
  padding: 0 0 40px;
}

.cd-show-page {
  width: 100%;
  margin: 0;
  aspect-ratio: 9 / 19.4;
  background: #fff;
  border: 10px solid #111;
  border-radius: 28px;
  overflow: hidden;
  padding: 0;
  box-sizing: border-box;
}

.cd-show-page:nth-child(4n+2) { margin-top: 24px; }
.cd-show-page:nth-child(4n+3) { margin-top: 10px; }
.cd-show-page:nth-child(4n+4) { margin-top: 32px; }

.cd-show-page img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 0;
  background: #fff;
}

.cd-about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 140px;
  gap: 32px 40px;
  align-items: start;
}
.cd-about.no-qr { grid-template-columns: 1fr; }
.cd-about.no-qr .cd-about-card { max-width: 100%; }

.cd-about-card {
  background: transparent;
  padding: 0;
  max-width: calc(100% - 60px);
}

.cd-about-card h3 {
  font-size: 20px;
  font-weight: 800;
}

.cd-about-card p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

.cd-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 4px;
}

.cd-qr img {
  width: 120px;
  height: 120px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.cd-qr p {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.cd-empty {
  padding: 80px 0;
  text-align: center;
}

.cd-empty a { color: var(--brand); }

/* ========== Responsive ========== */
@media (max-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .cta-photo { width: 100%; }
  .search-box { display: none; }
}

@media (max-width: 980px) {
  .header-inner { justify-content: space-between; }
  .nav { display: none; }
  .nav.is-open {
    display: flex;
    position: fixed;
    top: var(--header);
    left: 0;
    right: 0;
    z-index: 200;
    background: #fff;
    flex-direction: column;
    padding: 12px 20px 20px;
    box-shadow: 0 16px 30px rgba(0,0,0,.08);
    gap: 0;
    max-height: calc(100vh - var(--header));
    overflow-y: auto;
  }
  .nav.is-open a { padding: 12px 8px; }
  .menu-toggle { display: inline-flex; }
  .search-box { display: none; }
  .card-grid-3,
  .card-grid-4 { grid-template-columns: 1fr 1fr; }
  .cta-inner,
  .detail-layout,
  .form-page { grid-template-columns: 1fr; }
  .video-case { grid-template-columns: 1fr; }
  .video-stage { min-height: 0; width: 100%; max-width: 100%; }
  .float-rail:not(.is-expanded) { width: var(--rail-tab); }
  .float-rail:not(.is-expanded) .float-rail__dock { display: flex; flex-direction: column; }
  .float-rail:not(.is-expanded) .float-rail__panel { display: none; }
  .float-rail.is-expanded { width: var(--rail-w); }
  .float-rail.is-expanded .float-rail__dock { display: none; }
  .float-rail.is-expanded .float-rail__panel { display: block; }
  .case-showcase { grid-template-columns: 1fr; gap: 24px; }
  .case-photo { aspect-ratio: 16 / 9; height: auto; }
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .promise-grid { grid-template-columns: 1fr 1fr; }
  .promise-card:not(:nth-child(3n)),
  .promise-card:nth-child(-n+3) { border: 0; }
  .promise-card:not(:nth-child(2n)) { border-right: 1px solid #e8edf4; }
  .promise-card:not(:nth-child(n+5)) { border-bottom: 1px solid #e8edf4; }
  .cap-row { grid-template-columns: 1fr; gap: 14px; }
  .cap-row ul { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .cd-hero,
  .cd-about { grid-template-columns: 1fr; }
  .cd-show {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 16px;
    row-gap: 12px;
  }
  .cd-show-page:nth-child(4n+2),
  .cd-show-page:nth-child(4n+3),
  .cd-show-page:nth-child(4n+4) { margin-top: 0; }
  .cd-show-page:nth-child(3n+2) { margin-top: 20px; }
  .cd-show-page:nth-child(3n+3) { margin-top: 10px; }
  .cd-phones { min-height: 0; margin: 0 auto; max-width: 560px; height: var(--cd-main-h); }
  .cd-stage { padding: 0 36px; }
  .cd-tablet { padding: 8px; border-radius: 22px; }
  .cd-tablet .case-photo { border-radius: 14px; }
  .cd-intro h1 { font-size: 28px; }
  .map-card { flex-direction: column; text-align: center; }
  .logo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .about-logo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stats { grid-template-columns: 1fr 1fr; }
  .hero { min-height: 420px; height: 480px; }
  .hero-copy { padding-right: 8%; padding-top: 24px; justify-content: flex-end; padding-bottom: 72px; }
  .hero-slide::after {
    background: linear-gradient(180deg, rgba(6, 12, 40, .1) 20%, rgba(6, 12, 40, .72) 100%);
  }
  .hero-nav { width: 40px; height: 40px; margin-top: -20px; }
  .hero-prev { left: 12px; }
  .hero-next { right: 72px; }
  .cta-copy { padding: 48px 0; }
}

@media (max-width: 640px) {
  :root { --header: 64px; }
  .container { width: calc(100% - 24px); }
  .section { padding: 56px 0 48px; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 22px; }

  .card-grid-3,
  .card-grid-4,
  .footer-grid { grid-template-columns: 1fr; }
  .logo-grid,
  .about-logo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .header-inner { gap: 8px; }
  .logo-img { height: 38px; }
  .hotline { height: 36px; padding: 0 10px; }
  .hotline span.num { display: none; }
  .menu-toggle { min-width: 0; height: 36px; padding: 0 10px; }
  .qr-box {
    width: 120px;
    height: 120px;
    padding: 8px;
  }
  .qr-item { font-size: 13px; }

  .hero { min-height: 360px; height: 400px; }
  .hero-copy { padding-right: 12px; padding-top: 16px; justify-content: flex-end; padding-bottom: 64px; max-width: none; }
  .hero h1 { font-size: 28px; letter-spacing: 0; }
  .hero p { font-size: 14px; max-width: 92%; }
  .hero-nav { width: 36px; height: 36px; margin-top: -18px; }
  .hero-prev { left: 8px; }
  .hero-next { right: 8px; }
  .hero-dots { bottom: 16px; }
  .hero-cta { height: 40px; padding: 0 16px 0 18px; font-size: 14px; }

  .checks { flex-direction: column; gap: 10px; }

  .case-showcase { grid-template-columns: 1fr; gap: 20px; }
  .case-stage { padding: 12px; border-radius: 18px; }
  .case-photo { aspect-ratio: 16 / 9; height: auto; }
  .case-play-ico { width: 48px; height: 48px; }
  .case-play-ico svg { width: 20px; height: 20px; }
  #case-photo .case-play-ico svg { width: 26px; height: 26px; }
  .cd-tablet .case-play-ico svg { width: 26px; height: 26px; }
  .case-step h3 { font-size: 18px; }

  .video-case { grid-template-columns: 1fr; gap: 14px; }
  .video-stage { width: 100%; max-width: 100%; min-height: 0; }
  .video-play-ico { width: 56px; height: 56px; }
  .video-bar { height: 44px; padding: 0 8px; gap: 6px; }
  .video-time { min-width: 0; font-size: 11px; }
  .video-list-view { height: auto; max-height: 260px; overflow-y: auto; -webkit-overflow-scrolling: touch; }
  .video-list { transform: none !important; }
  .video-now h3 { font-size: 18px; }
  .video-now p { font-size: 13px; }

  .promise-grid { grid-template-columns: 1fr; }
  .promise-card,
  .promise-card:not(:nth-child(2n)),
  .promise-card:not(:nth-child(3n)) {
    border-right: 0;
    border-bottom: 1px solid #e8edf4;
  }
  .promise-card:last-child { border-bottom: 0; }
  .svc-grid { grid-template-columns: 1fr; }
  .svc-card { min-height: 0; padding: 26px 22px 22px; }
  .svc-card h3 { font-size: 18px; }
  .faq-q { font-size: 15px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-card { padding: 22px 18px; }
  .cd-mods { grid-template-columns: 1fr; }
  .cd-show {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 12px;
    row-gap: 12px;
    padding-bottom: 24px;
  }
  .cd-show-page { border-width: 10px; border-radius: 22px; }
  .cd-show-page:nth-child(3n+2),
  .cd-show-page:nth-child(3n+3),
  .cd-show-page:nth-child(4n+2),
  .cd-show-page:nth-child(4n+3),
  .cd-show-page:nth-child(4n+4) { margin-top: 0; }
  .cd-show-page:nth-child(2n) { margin-top: 16px; }
  .cd-phones {
    --cd-main-w: 132px;
    --cd-main-h: 270px;
    --cd-side-w: 96px;
    --cd-side-h: 196px;
    min-height: 0;
    height: var(--cd-main-h);
  }
  .cd-stage { padding: 16px 32px; }
  .cd-phone { border-radius: 18px; padding: 6px 5px 8px; }
  .cd-phone[data-slot="main"] { padding: 8px 6px 10px; }
  .cd-phone img { border-radius: 12px; }
  .cd-about { grid-template-columns: 1fr; justify-items: start; }
  .cd-about-card { max-width: 100%; }
  .cd-intro h1 { font-size: 24px; }
  .page-banner { height: 160px; }
  .page-banner h1 { font-size: 26px; letter-spacing: 1px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .prose, .about-wrap { width: min(860px, calc(100% - 24px)); }

  .site-footer { padding-top: 0; }
  .site-footer .footer-grid { display: none; }
  .copyright {
    padding: 24px 12px 28px;
    line-height: 1.7;
  }
  .copyright-icp { display: block; margin-top: 4px; }
  .copyright-extra { display: none; }
}