:root {
  --red: #00599c;
  --red-dark: #003f70;
  --blue-soft: #eef7ff;
  --ink: #0b0d12;
  --text: #30343b;
  --muted: #717780;
  --line: #e8eaee;
  --line-strong: #d6dae1;
  --surface: #ffffff;
  --soft: #f7f9fc;
  --soft-red: #eef7ff;
  --cyan: #18b7e8;
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.09);
  --shadow-strong: 0 28px 70px rgba(17, 24, 39, 0.15);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: #fff;
}

body {
  --pointer-x: 50%;
  --pointer-y: 18%;
  position: relative;
  isolation: isolate;
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 12%, rgba(0, 89, 156, 0.08), transparent 30rem),
    linear-gradient(180deg, rgba(248, 250, 253, 0.98), #fff 22rem),
    #fff;
  font-family:
    "PingFang SC",
    "Microsoft YaHei",
    "Hiragino Sans GB",
    system-ui,
    sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 89, 156, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 89, 156, 0.04) 1px, transparent 1px),
    radial-gradient(rgba(0, 89, 156, 0.12) 1px, transparent 1px);
  background-position: 0 0;
  background-size: 72px 72px, 72px 72px, 22px 22px;
  -webkit-mask-image: linear-gradient(180deg, #000 0, transparent 85%);
  mask-image: linear-gradient(180deg, #000 0, transparent 85%);
  opacity: 0.8;
}

body::after {
  content: "";
  position: fixed;
  inset: -28%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(0, 89, 156, 0.08), transparent 16rem),
    radial-gradient(circle at 72% 24%, rgba(0, 89, 156, 0.06), transparent 22rem);
  filter: blur(20px);
  animation: softBackgroundShift 18s ease-in-out infinite alternate;
}

body > * {
  position: relative;
  z-index: 1;
}

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

button,
input,
textarea {
  font: inherit;
}

svg {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  min-height: 4.5rem;
  padding: 0 3rem;
  border-bottom: 1px solid rgba(232, 234, 238, 0.9);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-width: max-content;
}

.brand-logo {
  display: block;
  width: 3.15rem;
  height: 3.15rem;
  border-radius: 0.35rem;
  object-fit: contain;
  background: #fff;
  padding: 0.08rem;
}

.brand-text {
  display: grid;
  line-height: 1;
}

.brand-text strong {
  font-size: 1.05rem;
  font-weight: 900;
}

.nav-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  color: #20242b;
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
  padding: 0;
}

.nav-links a::after {
  display: none;
}

.nav-links a.active::after,
.nav-links a:hover::after {
  display: none;
}

.site-header .nav-links:not(.pill-nav-items) {
  gap: 2.2rem;
}

.site-header .nav-links:not(.pill-nav-items) a {
  padding: 1.55rem 0;
  color: #20242b;
  font-weight: 600;
}

.site-header .nav-links:not(.pill-nav-items) a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1rem;
  display: block;
  width: 1.2rem;
  height: 0.18rem;
  border-radius: 99px;
  background: var(--red);
  opacity: 0;
  transform: translateX(-50%) scaleX(0.5);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.site-header .nav-links:not(.pill-nav-items) a.active::after,
.site-header .nav-links:not(.pill-nav-items) a:hover::after {
  opacity: 1;
  transform: translateX(-50%) scaleX(1);
}

.pill-nav-items {
  width: max-content;
  justify-self: center;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.06);
  backdrop-filter: blur(16px);
}

.pill-list {
  display: flex;
  align-items: stretch;
  gap: 0.2rem;
  height: 2.7rem;
  margin: 0;
  padding: 0.2rem;
  list-style: none;
}

.pill-list > li {
  display: flex;
}

.pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.8rem;
  height: 100%;
  padding: 0 1rem;
  overflow: hidden;
  border-radius: 999px;
  color: #151922;
  font-size: 0.9rem;
  font-weight: 800;
  white-space: nowrap;
  transition: color 0.24s ease, background 0.24s ease, transform 0.24s ease;
}

.pill .hover-circle {
  position: absolute;
  left: 50%;
  bottom: -3.2rem;
  z-index: 1;
  width: 7rem;
  height: 7rem;
  border-radius: 50%;
  background: #111827;
  transform: translateX(-50%) scale(0);
  transform-origin: 50% 92%;
  transition: transform 0.45s cubic-bezier(0.2, 0.9, 0.2, 1);
}

.label-stack {
  position: relative;
  z-index: 2;
  display: inline-grid;
  line-height: 1;
}

.pill-label,
.pill-label-hover {
  grid-area: 1 / 1;
  display: inline-block;
  transition: transform 0.34s cubic-bezier(0.2, 0.9, 0.2, 1), opacity 0.24s ease;
}

.pill-label-hover {
  color: #fff;
  opacity: 0;
  transform: translateY(1.2rem);
}

.pill:hover,
.pill.active {
  color: #fff;
  transform: translateY(-1px);
}

.pill:hover .hover-circle,
.pill.active .hover-circle {
  transform: translateX(-50%) scale(1);
}

.pill:hover .pill-label,
.pill.active .pill-label {
  opacity: 0;
  transform: translateY(-1.2rem);
}

.pill:hover .pill-label-hover,
.pill.active .pill-label-hover {
  opacity: 1;
  transform: translateY(0);
}

.header-cta,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.8rem;
  border-radius: 0.35rem;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, var(--red-dark), var(--red));
  box-shadow: 0 12px 24px rgba(0, 89, 156, 0.22);
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.header-cta:hover,
.primary-button:hover {
  background: linear-gradient(135deg, #003661, var(--red-dark));
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(0, 89, 156, 0.26);
}

.hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: calc(100vh - 4.5rem);
  padding: 4rem 1.5rem 5.6rem;
  overflow: hidden;
}

.hero::before,
.product-hero::before,
.help-hero::before {
  content: "";
  position: absolute;
  inset: 8% auto auto 50%;
  width: min(48rem, 82vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(24, 183, 232, 0.13), transparent 60%),
    radial-gradient(circle at 34% 28%, rgba(0, 89, 156, 0.12), transparent 46%);
  filter: blur(28px);
  transform: translateX(-50%);
  animation: floatGlow 10s ease-in-out infinite alternate;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 49%, rgba(0, 89, 156, 0.045) 49% 51%, transparent 51%),
    radial-gradient(circle at 50% 42%, rgba(0, 89, 156, 0.08), transparent 34rem),
    linear-gradient(180deg, transparent 0, rgba(246, 249, 253, 0.85) 70%, #fff 100%);
  opacity: 0.96;
}

.hero-pattern::before,
.hero-pattern::after {
  content: "";
  position: absolute;
  height: 1px;
  left: 0;
  right: 0;
  background: linear-gradient(90deg, transparent, rgba(0, 89, 156, 0.2), transparent);
}

.hero-pattern::before {
  top: 22%;
}

.hero-pattern::after {
  bottom: 18%;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
  text-align: center;
}

.hero-kicker {
  margin: 0 0 1.1rem;
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 800;
}

.hero-title {
  margin: 0 auto;
  max-width: 62rem;
  font-size: 4.9rem;
  line-height: 1.08;
  font-weight: 900;
}

.hero-title .letter,
.section-heading h2 .letter,
.download-copy h2 .letter,
.help-title .letter {
  color: transparent;
  background: linear-gradient(120deg, #08111f 10%, #00599c 52%, #18b7e8 92%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-subtitle {
  max-width: 58rem;
  margin: 1.35rem auto 0;
  color: var(--muted);
  font-size: 1.16rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  justify-content: center;
  margin-top: 2.3rem;
}

.primary-button {
  min-width: 10.5rem;
  min-height: 3.4rem;
  font-size: 1rem;
}

.download-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.6rem;
}

.download-chip,
.store-button {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.86);
  color: #181b20;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.07);
  backdrop-filter: blur(12px);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.download-chip {
  min-width: 9.6rem;
  min-height: 3rem;
  justify-content: center;
  font-weight: 700;
}

.download-chip:hover,
.store-button:hover {
  border-color: rgba(0, 89, 156, 0.32);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.download-chip svg,
.store-button svg,
.solution-card svg {
  width: 1.35rem;
  height: 1.35rem;
  fill: currentColor;
}

.download-chip:nth-child(1),
.download-chip:nth-child(3),
.store-button:nth-child(1),
.store-button:nth-child(3) {
  color: #111;
}

.download-chip:nth-child(2),
.store-button:nth-child(2) {
  color: #111;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 1.7rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: #8b919b;
  font-size: 0.82rem;
  transform: translateX(-50%);
}

.scroll-cue span {
  width: 0.72rem;
  height: 1.25rem;
  border: 1px solid #b5bac3;
  border-radius: 99px;
  position: relative;
}

.scroll-cue span::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0.24rem;
  width: 0.2rem;
  height: 0.2rem;
  border-radius: 50%;
  background: var(--red);
  transform: translateX(-50%);
  animation: wheel 1.4s ease-in-out infinite;
}

.scroll-cue em {
  font-style: normal;
}

.section {
  width: min(100% - 3rem, var(--max));
  margin: 0 auto;
  padding: 4.8rem 0;
}

.section-heading {
  margin-bottom: 2.2rem;
  text-align: center;
}

.section-heading h2,
.download-copy h2 {
  margin: 0;
  font-size: 2.15rem;
  line-height: 1.18;
  font-weight: 900;
}

.section-heading p,
.download-copy p {
  margin: 0.7rem auto 0;
  color: var(--muted);
  line-height: 1.75;
}

.case-stack {
  display: grid;
  gap: 1.5rem;
}

.case-card {
  position: sticky;
  top: 5.6rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.9fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.case-card:nth-child(2) {
  top: 6.6rem;
}

.case-media {
  position: relative;
  min-height: 19rem;
  background: #111;
}

.case-media video {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 19rem;
  object-fit: cover;
}

.play-badge {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3.3rem;
  height: 3.3rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.play-badge::after {
  content: "";
  position: absolute;
  left: 1.35rem;
  top: 1.02rem;
  border-top: 0.62rem solid transparent;
  border-bottom: 0.62rem solid transparent;
  border-left: 0.9rem solid #fff;
}

.case-content {
  display: flex;
  min-height: 19rem;
  flex-direction: column;
  justify-content: center;
  padding: 2.1rem;
}

.case-content h3 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.35;
}

.case-content p {
  margin: 0.9rem 0 1.3rem;
  color: var(--muted);
  line-height: 1.8;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.metrics span {
  color: #727983;
  font-size: 0.86rem;
}

.metrics strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--red);
  font-size: 1.35rem;
  line-height: 1.1;
}

.case-content a,
.solution-card a {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-top: 1.2rem;
  color: #181b20;
  font-weight: 800;
}

.case-content a::after,
.solution-card a::after {
  content: "→";
  margin-left: 0.45rem;
  color: var(--red);
  transition: transform 0.25s ease;
}

.case-content a:hover::after,
.solution-card a:hover::after {
  transform: translateX(3px);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.1rem;
}

.solution-card {
  min-height: 13.2rem;
  padding: 1.55rem;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(243, 249, 255, 0.86));
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.06);
  backdrop-filter: blur(10px);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.solution-card:hover {
  border-color: rgba(0, 89, 156, 0.32);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.solution-card svg {
  width: 2.15rem;
  height: 2.15rem;
  color: var(--red);
}

.solution-card h3 {
  margin: 1rem 0 0.55rem;
  font-size: 1.08rem;
}

.solution-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.72;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.product-card,
.feature-card {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.96), rgba(244, 250, 255, 0.88));
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08);
  backdrop-filter: blur(10px);
}

.product-card {
  scroll-margin-top: 6rem;
  display: flex;
  min-height: 34rem;
  flex-direction: column;
  padding: 1.45rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card::before,
.feature-card::before,
.solution-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(24, 183, 232, 0.12), transparent 32%),
    radial-gradient(circle at 80% 10%, rgba(0, 89, 156, 0.12), transparent 15rem);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.product-card:hover,
.feature-card:hover {
  border-color: rgba(0, 89, 156, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 22px 48px rgba(17, 24, 39, 0.12);
}

.product-card:hover::before,
.feature-card:hover::before,
.solution-card:hover::before {
  opacity: 1;
}

.product-logo {
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.5rem;
  font-weight: 900;
}

img.product-logo {
  display: block;
  object-fit: cover;
}

.placeholder-logo {
  color: #fff;
  background:
    linear-gradient(145deg, #18b7e8, #00599c 62%, #003f70);
  box-shadow: 0 14px 26px rgba(0, 89, 156, 0.2);
}

.product-kicker {
  margin: 1.1rem 0 0.45rem;
  color: var(--red);
  font-size: 0.82rem;
  font-weight: 800;
}

.product-card h3 {
  margin: 0;
  font-size: 1.55rem;
}

.product-card p {
  color: var(--muted);
  line-height: 1.75;
}

.mini-video,
.video-placeholder,
.hero-video-shell {
  overflow: hidden;
  border-radius: 0.5rem;
  background: #08121f;
  border: 1px solid rgba(0, 89, 156, 0.14);
}

.mini-video {
  aspect-ratio: 16 / 10;
  margin-top: auto;
}

.mini-video video,
.hero-video-shell video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  color: rgba(255, 255, 255, 0.78);
  background:
    linear-gradient(145deg, rgba(0, 89, 156, 0.96), rgba(5, 34, 64, 0.96));
  font-weight: 800;
}

.secondary-button,
.outline-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  border-radius: 0.35rem;
  font-weight: 800;
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.secondary-button {
  margin-top: 1.1rem;
  color: #181b20;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(120deg, rgba(0, 89, 156, 0.22), rgba(17, 24, 39, 0.12), rgba(0, 89, 156, 0.32)) border-box;
  border: 1px solid transparent;
  box-shadow: 0 12px 24px rgba(17, 24, 39, 0.07);
}

.outline-button {
  min-width: 10.5rem;
  padding: 0 1.6rem;
  border: 1px solid rgba(0, 89, 156, 0.22);
  color: var(--red-dark);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(10px);
}

.secondary-button:hover,
.outline-button:hover {
  border-color: rgba(0, 89, 156, 0.38);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.shiny-action {
  width: 100%;
  min-height: 3.2rem;
  margin-top: auto;
  border-radius: 0.55rem;
}

.shiny-text {
  display: inline-block;
  color: transparent;
  background-image: linear-gradient(
    120deg,
    #151922 0%,
    #151922 36%,
    #ffffff 48%,
    #0b5cad 55%,
    #151922 68%,
    #151922 100%
  );
  background-size: 220% auto;
  background-position: 150% center;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shinyText 2.8s linear infinite;
}

.shiny-action:hover .shiny-text {
  animation-play-state: paused;
}

.product-hero {
  position: relative;
  min-height: calc(100vh - 4.5rem);
  padding: 5rem 1.5rem;
  overflow: hidden;
}

.product-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(24rem, 1.1fr);
  align-items: center;
  gap: 3rem;
  width: min(100%, var(--max));
  min-height: calc(100vh - 14.5rem);
  margin: 0 auto;
}

.product-hero-copy {
  text-align: left;
}

.product-hero-copy .hero-title,
.product-hero-copy .blur-text {
  justify-content: flex-start;
}

.product-hero-copy .hero-subtitle {
  margin-left: 0;
}

.product-hero-copy .hero-actions {
  justify-content: flex-start;
  gap: 0.9rem;
}

.hero-video-shell {
  aspect-ratio: 16 / 10;
  border: 1px solid rgba(0, 89, 156, 0.18);
  box-shadow: var(--shadow-strong);
}

.large-placeholder {
  width: 100%;
  height: 100%;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
  align-items: stretch;
}

.feature-card {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  min-height: 0;
  padding: 1.5rem;
}

.feature-card h3 {
  margin: 1rem 0 0.7rem;
  font-size: 1.16rem;
}

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

.feature-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(0, 89, 156, 0.12);
  border-radius: 0.45rem;
  background: #08121f;
}

.feature-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-media.video-placeholder {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  aspect-ratio: 16 / 9;
}

.home-back-button {
  min-width: 8.8rem;
}

.download-section {
  padding: 1.2rem 0 4.8rem;
}

.help-hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: calc(100vh - 4.5rem);
  padding: 5rem 1.5rem;
  overflow: hidden;
}

.help-inner {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
  text-align: center;
}

.help-title {
  margin: 0 auto;
  font-size: 4rem;
  line-height: 1.12;
  font-weight: 900;
}

.help-subtitle {
  max-width: 42rem;
  margin: 1.2rem auto 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.85;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
  margin-top: 2.8rem;
}

.contact-card-item {
  min-height: 13rem;
  padding: 1.7rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: var(--shadow);
  text-align: left;
  backdrop-filter: blur(10px);
}

.contact-card-item svg {
  width: 2.2rem;
  height: 2.2rem;
  color: var(--red);
  fill: currentColor;
}

.contact-card-item h2 {
  margin: 1.2rem 0 0.5rem;
  font-size: 1.18rem;
}

.contact-card-item p {
  margin: 0;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.5;
}

.contact-list {
  display: grid;
  gap: 0.75rem;
  width: min(100%, 44rem);
  margin: 1.2rem auto 0;
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.06);
  backdrop-filter: blur(10px);
  text-align: left;
}

.contact-list div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.contact-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.contact-list span {
  color: var(--muted);
}

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

.help-back {
  margin-top: 1.8rem;
}

.download-panel {
  display: grid;
  grid-template-columns: 18rem 1fr;
  align-items: center;
  gap: 3rem;
  width: min(100% - 3rem, var(--max));
  margin: 0 auto;
  padding: 2.2rem 3rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background:
    linear-gradient(90deg, rgba(0, 89, 156, 0.08), transparent 34%),
    radial-gradient(circle at 88% 12%, rgba(24, 183, 232, 0.12), transparent 20rem),
    var(--soft);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.phone-preview {
  display: grid;
  place-items: center;
}

.phone-screen {
  display: grid;
  place-items: center;
  width: 10rem;
  height: 18rem;
  padding: 2rem 1rem;
  border: 0.55rem solid #111;
  border-radius: 1.8rem;
  background:
    linear-gradient(160deg, #eef8ff 0 58%, #dbefff 58% 100%);
  box-shadow: var(--shadow-strong);
  text-align: center;
}

.phone-logo {
  display: block;
  width: 4.8rem;
  height: 4.8rem;
  border-radius: 0.7rem;
  object-fit: contain;
}

.phone-screen em {
  margin-top: 1rem;
  font-style: normal;
  font-size: 0.8rem;
  font-weight: 700;
  color: #0b2340;
}

.phone-screen img.product-logo {
  width: 4.8rem;
  height: 4.8rem;
  border-radius: 0.7rem;
}

.download-copy {
  text-align: left;
}

.download-copy p {
  margin-left: 0;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.store-button {
  min-width: 11.5rem;
  min-height: 4rem;
  padding: 0 1rem;
}

.store-button span {
  display: grid;
  gap: 0.16rem;
}

.store-button strong {
  font-size: 0.94rem;
}

.store-button em {
  color: #8a9099;
  font-size: 0.76rem;
  font-style: normal;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2rem 3rem;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.site-footer p {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.footer-record {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: #8a9099;
  font-size: 0.82rem;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  color: #4f5660;
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(26rem, 0.92fr);
  align-items: center;
  gap: 3.2rem;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.hero-copy {
  text-align: left;
}

.hero-copy .blur-text {
  justify-content: flex-start;
}

.hero-copy .hero-subtitle {
  margin-left: 0;
}

.hero-title .letter,
.section-heading h2 .letter,
.download-copy h2 .letter,
.help-title .letter {
  color: var(--ink);
  background: none;
  -webkit-background-clip: border-box;
  background-clip: border-box;
}

.hero-title {
  max-width: 38rem;
  font-size: 4rem;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 39rem;
  color: #5d6570;
}

.hero-visual {
  position: relative;
  min-height: 27rem;
}

.visual-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 27rem;
  border-radius: 2rem;
  background:
    radial-gradient(circle at 50% 50%, rgba(0, 89, 156, 0.1), transparent 19rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(246, 250, 255, 0.72));
  overflow: hidden;
}

.visual-stage::before {
  content: "";
  position: absolute;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  border: 1px solid rgba(0, 89, 156, 0.12);
  transform: rotateX(72deg);
}

.visual-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 89, 156, 0.14);
  transform: rotateX(72deg);
  animation: slowSpin 16s linear infinite;
}

.ring-one {
  width: 17rem;
  height: 17rem;
}

.ring-two {
  width: 25rem;
  height: 25rem;
  animation-duration: 24s;
  animation-direction: reverse;
}

.visual-logo-card {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 9.4rem;
  height: 9.4rem;
  border: 1px solid rgba(0, 89, 156, 0.16);
  border-radius: 1.5rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(224, 239, 255, 0.86));
  box-shadow: 0 28px 70px rgba(0, 89, 156, 0.18);
  animation: cardFloat 4.8s ease-in-out infinite alternate;
}

.visual-logo-card img {
  width: 6.8rem;
  height: 6.8rem;
  object-fit: contain;
}

.floating-panel {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 89, 156, 0.12);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 40px rgba(17, 24, 39, 0.08);
  backdrop-filter: blur(10px);
  animation: panelFloat 5.6s ease-in-out infinite alternate;
}

.panel-chart {
  left: 1.6rem;
  top: 5.2rem;
  width: 7rem;
  height: 4.6rem;
  gap: 0.45rem;
}

.panel-chart span {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: #0b5cad;
}

.panel-chart strong {
  color: #111827;
}

.panel-audio {
  right: 1.2rem;
  top: 4.2rem;
  width: 7.8rem;
  height: 4.2rem;
  gap: 0.35rem;
  animation-delay: 0.4s;
}

.panel-audio i {
  display: block;
  width: 0.32rem;
  border-radius: 99px;
  background: #0b5cad;
}

.panel-audio i:nth-child(1),
.panel-audio i:nth-child(4) {
  height: 1.1rem;
}

.panel-audio i:nth-child(2) {
  height: 1.8rem;
}

.panel-audio i:nth-child(3) {
  height: 2.4rem;
}

.panel-user {
  right: 2.8rem;
  bottom: 5.6rem;
  width: 4.6rem;
  height: 4.1rem;
  animation-delay: 0.8s;
}

.panel-user span {
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: #0b5cad;
  box-shadow: 0 1.45rem 0 -0.55rem rgba(11, 92, 173, 0.36);
}

.orbit-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 27rem;
  border-radius: 2rem;
  background:
    radial-gradient(circle at 50% 50%, rgba(0, 89, 156, 0.1), transparent 19rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(246, 250, 255, 0.72));
  overflow: hidden;
}

.orbit-stage::before,
.orbit-stage::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(78%, 40rem);
  height: 10.6rem;
  border: 1px solid rgba(0, 89, 156, 0.12);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-8deg);
}

.orbit-stage::after {
  width: min(58%, 30rem);
  height: 7.2rem;
  opacity: 0.7;
}

.orbit-center {
  position: relative;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 9.5rem;
  height: 9.5rem;
  border: 1px solid rgba(0, 89, 156, 0.14);
  border-radius: 1.45rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(225, 240, 255, 0.9));
  box-shadow: 0 28px 70px rgba(0, 89, 156, 0.16);
}

.orbit-center img {
  width: 6.8rem;
  height: 6.8rem;
  object-fit: contain;
}

.orbit-item {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: 4.3rem;
  height: 4.3rem;
  border: 0.35rem solid rgba(255, 255, 255, 0.92);
  border-radius: 1rem;
  background: #fff;
  box-shadow: 0 16px 36px rgba(17, 24, 39, 0.14);
  object-fit: cover;
  will-change: transform;
}

.orbit-photo {
  width: 5.4rem;
  height: 5.4rem;
}

.product-jump-panel {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  width: min(100% - 3rem, 70rem);
  margin: -1.2rem auto 0;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.product-jump {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-height: 5.6rem;
  padding: 1rem 1.6rem;
  color: var(--ink);
  transition: transform 0.25s ease, background 0.25s ease;
}

.product-jump + .product-jump {
  border-left: 1px solid var(--line);
}

.product-jump:hover {
  background: #f9fbfe;
  transform: translateY(-2px);
}

.product-jump img {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  object-fit: cover;
}

.product-jump span {
  display: grid;
  gap: 0.28rem;
}

.product-jump strong {
  font-size: 1.1rem;
  color: var(--ink);
}

.product-jump em {
  color: var(--muted);
  font-size: 0.86rem;
  font-style: normal;
}

.product-grid {
  gap: 1.3rem;
}

.product-card {
  align-items: center;
  min-height: 36rem;
  padding: 1.6rem;
  text-align: center;
  background: #fff;
}

.product-card > .product-logo {
  width: 5.8rem;
  height: 5.8rem;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 14px 28px rgba(17, 24, 39, 0.08);
}

.product-card h3 {
  margin-top: 0.9rem;
  color: var(--ink);
  font-size: 1.85rem;
}

.product-kicker {
  margin: 0.35rem 0 1rem;
  color: #30343b;
  font-size: 0.95rem;
  font-weight: 600;
}

.mini-video,
.video-placeholder {
  width: 100%;
  margin: 0 0 1rem;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.case-tile {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: #fff;
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.06);
}

.case-tile-media {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 0.45rem;
}

.case-tile-media img {
  width: 7.2rem;
  height: 7.2rem;
  border-radius: 50%;
  object-fit: cover;
}

.xiuwo-case {
  background: linear-gradient(145deg, #fff2f7, #fff);
}

.tuoke-case {
  background: linear-gradient(145deg, #eef6ff, #fff);
}

.lianbo-case {
  background: linear-gradient(145deg, #f4f0ff, #fff);
}

.case-tile h3 {
  margin: 1rem 0 0.4rem;
  font-size: 1.08rem;
}

.case-tile p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.case-tile a {
  display: inline-flex;
  margin-top: 0.9rem;
  color: #0b5cad;
  font-weight: 800;
}

.logo-loop-section {
  width: min(100% - 3rem, var(--max));
  margin: 0 auto 4.8rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: #fff;
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.05);
}

.logo-loop {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.logo-loop-track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 1.4rem;
  padding: 1.2rem 1.4rem;
  animation: logoLoop 28s linear infinite;
}

.logo-loop:hover .logo-loop-track {
  animation-play-state: paused;
}

.logo-loop-track img {
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 50%;
  object-fit: cover;
}

.logo-loop-track span {
  margin-right: 2rem;
  color: #30343b;
  font-weight: 800;
}

.blur-text {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
}

.blur-text .letter {
  display: inline-block;
  opacity: 0;
  filter: blur(10px);
  transform: translateY(-34px);
  animation: blurTextIn 0.78s cubic-bezier(0.2, 0.9, 0.2, 1) forwards;
  animation-delay: calc(var(--i) * 82ms);
  will-change: transform, opacity, filter;
}

.blur-text .letter.space {
  width: 0.36em;
}

[data-reveal],
.solution-card,
.case-card {
  opacity: 0;
  filter: blur(10px);
  transform: translateY(3rem) scale(0.985);
}

.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0) scale(1);
  transition:
    opacity 0.75s ease,
    filter 0.75s ease,
    transform 0.75s cubic-bezier(0.2, 0.9, 0.2, 1);
}

.solution-card:nth-child(2).is-visible,
.download-chip:nth-child(2).is-visible {
  transition-delay: 0.08s;
}

.solution-card:nth-child(3).is-visible,
.download-chip:nth-child(3).is-visible {
  transition-delay: 0.16s;
}

.solution-card:nth-child(4).is-visible {
  transition-delay: 0.24s;
}

.product-card:nth-child(2).is-visible,
.case-tile:nth-child(2).is-visible {
  transition-delay: 0.1s;
}

.product-card:nth-child(3).is-visible,
.case-tile:nth-child(3).is-visible {
  transition-delay: 0.2s;
}

.magnet {
  will-change: transform;
}

@keyframes blurTextIn {
  0% {
    opacity: 0;
    filter: blur(10px);
    transform: translateY(-34px);
  }
  55% {
    opacity: 0.68;
    filter: blur(4px);
    transform: translateY(5px);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }
}

@keyframes wheel {
  0% {
    opacity: 0;
    transform: translate(-50%, 0);
  }
  40% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, 0.5rem);
  }
}

@keyframes softBackgroundShift {
  0% {
    transform: translate3d(-2%, -1%, 0) rotate(0deg) scale(1);
  }
  100% {
    transform: translate3d(2%, 1.8%, 0) rotate(12deg) scale(1.06);
  }
}

@keyframes floatGlow {
  0% {
    transform: translateX(-50%) translateY(-1.2rem) scale(0.96);
    opacity: 0.72;
  }
  100% {
    transform: translateX(-50%) translateY(1.2rem) scale(1.04);
    opacity: 1;
  }
}

@keyframes slowSpin {
  0% {
    transform: rotateX(72deg) rotateZ(0deg);
  }
  100% {
    transform: rotateX(72deg) rotateZ(360deg);
  }
}

@keyframes cardFloat {
  0% {
    transform: translateY(-0.35rem);
  }
  100% {
    transform: translateY(0.45rem);
  }
}

@keyframes panelFloat {
  0% {
    transform: translate3d(0, -0.3rem, 0);
  }
  100% {
    transform: translate3d(0, 0.45rem, 0);
  }
}

@keyframes logoLoop {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(-50%, 0, 0);
  }
}

@keyframes shinyText {
  0% {
    background-position: 150% center;
  }
  100% {
    background-position: -50% center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding: 0 1.25rem;
  }

  .nav-links {
    display: none;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero-copy {
    text-align: center;
  }

  .hero-copy .blur-text {
    justify-content: center;
  }

  .hero-copy .hero-subtitle {
    margin-left: auto;
  }

  .hero-visual {
    min-height: 22rem;
  }

  .visual-stage {
    min-height: 22rem;
  }

  .orbit-stage {
    min-height: 22rem;
  }

  .product-jump-panel,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .product-jump + .product-jump {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .hero-title {
    font-size: 3.6rem;
  }

  .help-title {
    font-size: 3.2rem;
  }

  .case-card,
  .download-panel {
    grid-template-columns: 1fr;
  }

  .product-hero-inner,
  .product-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .product-hero-inner {
    gap: 2rem;
    min-height: auto;
  }

  .product-hero-copy {
    text-align: center;
  }

  .product-hero-copy .hero-title,
  .product-hero-copy .blur-text {
    justify-content: center;
  }

  .product-hero-copy .hero-subtitle {
    margin-left: auto;
  }

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

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

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

  .download-copy {
    text-align: center;
  }

  .download-copy p {
    margin-left: auto;
  }

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

@media (max-width: 680px) {
  .site-header {
    gap: 1rem;
    min-height: 4rem;
  }

  .header-cta {
    min-height: 2.6rem;
    padding: 0 1rem;
    font-size: 0.9rem;
  }

  .hero {
    min-height: calc(100vh - 4rem);
    padding: 2.8rem 1rem 5rem;
  }

  .hero-title {
    max-width: 100%;
  }

  .hero-visual {
    min-height: 18rem;
  }

  .visual-stage {
    min-height: 18rem;
  }

  .orbit-stage {
    min-height: 18rem;
  }

  .orbit-center {
    width: 7rem;
    height: 7rem;
  }

  .orbit-center img {
    width: 5rem;
    height: 5rem;
  }

  .orbit-item {
    width: 3.2rem;
    height: 3.2rem;
  }

  .orbit-photo {
    width: 3.8rem;
    height: 3.8rem;
  }

  .visual-logo-card {
    width: 7rem;
    height: 7rem;
  }

  .visual-logo-card img {
    width: 5rem;
    height: 5rem;
  }

  .floating-panel {
    display: none;
  }

  .product-jump-panel {
    width: min(100% - 1.5rem, var(--max));
    margin-top: -0.8rem;
  }

  .product-hero {
    min-height: auto;
    padding: 3rem 1rem;
  }

  .hero-title {
    font-size: 2.55rem;
  }

  .help-title {
    font-size: 2.4rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section {
    width: min(100% - 1.5rem, var(--max));
    padding: 3.6rem 0;
  }

  .section-heading h2,
  .download-copy h2 {
    font-size: 1.78rem;
  }

  .download-row,
  .download-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .download-chip,
  .store-button {
    width: 100%;
  }

  .product-card {
    min-height: auto;
  }

  .product-hero-copy .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .case-card {
    position: relative;
    top: auto;
  }

  .case-card:nth-child(2) {
    top: auto;
  }

  .case-content {
    padding: 1.25rem;
  }

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

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

  .contact-list div {
    display: grid;
  }

  .download-panel {
    width: min(100% - 1.5rem, var(--max));
    padding: 1.4rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }
}