#top.sy-home-section {
  --sy-bg: #050814;
  --sy-surface: #0b1325;
  --sy-surface-strong: #101b34;
  --sy-line: rgba(123, 161, 229, 0.22);
  --sy-text: #f4f7fd;
  --sy-muted: #95a5c1;
  --sy-blue: #76a0f7;
  --sy-price: #ffd17b;
  position: relative;
  overflow: hidden;
  /* 首屏占满视口高度，让下方「让每一个企业，都有自己的AI」大标题完整落到第二屏，不再露一半 */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 7rem 1rem 2rem;
  color: var(--sy-text);
  background:
    radial-gradient(circle at 46% -30%, rgba(65, 105, 196, 0.24), transparent 34rem),
    radial-gradient(circle at 92% 72%, rgba(54, 76, 145, 0.14), transparent 28rem),
    var(--sy-bg);
}

.sy-home-light #top.sy-home-section {
  --sy-bg: #edf3fc;
  --sy-surface: #ffffff;
  --sy-surface-strong: #f2f6fd;
  --sy-line: rgba(36, 74, 137, 0.2);
  --sy-text: #0a1730;
  --sy-muted: #586986;
  --sy-blue: #336fdc;
  --sy-price: #9b5b00;
}

#top.sy-home-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(112, 145, 205, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(112, 145, 205, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black, transparent 84%);
}

.sy-home-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 1280px);
  margin: 0 auto;
}

.sy-home-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  min-height: 5.25rem;
  padding-bottom: 1rem;
}

.sy-home-kicker {
  margin-bottom: 0.5rem;
  color: var(--sy-blue);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.sy-home-intro h1 {
  margin: 0;
  max-width: 15em;
  color: var(--sy-text);
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 850;
  line-height: 1;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.sy-home-intro p {
  max-width: 38rem;
  margin: 0 0 0.15rem;
  color: var(--sy-muted);
  font-size: 0.94rem;
  line-height: 1.65;
  text-align: right;
  text-wrap: pretty;
}

.sy-home-capabilities {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  perspective: 1400px;
}

.sy-home-card {
  --rx: 0deg;
  --ry: 0deg;
  --mx: 50%;
  --my: 50%;
  position: relative;
  min-width: 0;
  min-height: 22rem;
  overflow: hidden;
  border: 1px solid var(--sy-line);
  border-radius: 1.125rem;
  background: linear-gradient(145deg, color-mix(in srgb, var(--sy-surface-strong) 96%, transparent), color-mix(in srgb, var(--sy-bg) 96%, transparent));
  box-shadow: 0 1.6rem 4rem rgba(0, 8, 32, 0.32);
  cursor: pointer;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1), border-color 240ms ease;
}

.sy-home-card:hover { border-color: rgba(118, 160, 247, 0.58); }
.sy-home-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at var(--mx) var(--my), rgba(105, 157, 255, 0.16), transparent 32%);
}

.sy-home-card-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 1.85rem;
}

.sy-home-card-topline {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}
.sy-home-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex: 1;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
}
.sy-home-label { color: var(--sy-blue); font-size: 0.84rem; font-weight: 820; }
.sy-home-icon {
  position: relative;
  width: 5.75rem;
  height: 5.75rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  margin-top: -0.55rem;
  border: 1px solid rgba(118, 160, 247, 0.3);
  border-radius: 1.45rem;
  color: var(--sy-blue);
  background:
    radial-gradient(circle at 38% 28%, rgba(141, 181, 255, 0.25), transparent 42%),
    rgba(24, 43, 79, 0.6);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08), 0 1rem 2.5rem rgba(2, 10, 32, 0.26);
}
.sy-home-icon::after {
  content: "";
  position: absolute;
  inset: 0.45rem;
  border: 1px solid rgba(118, 160, 247, 0.12);
  border-radius: 1rem;
}
.sy-home-icon svg { width: 4.15rem; height: 4.15rem; overflow: visible; }
.sy-home-icon svg * { vector-effect: non-scaling-stroke; stroke: currentColor; stroke-width: 2; }
.sy-home-icon-path { stroke-dasharray: 5 4; animation: sy-home-flow 2.8s linear infinite; }
.sy-home-icon--compute { color: #91b5ff; }
@keyframes sy-home-flow { to { stroke-dashoffset: -18; } }
.sy-home-card h2 {
  margin: 0.45rem 0 0.9rem;
  color: var(--sy-text);
  font-size: clamp(2.15rem, 3.15vw, 3.25rem);
  font-weight: 850;
  line-height: 1.02;
  letter-spacing: -0.045em;
  white-space: nowrap;
}
.sy-home-line { margin: 0; color: var(--sy-text); font-size: clamp(1rem, 1.25vw, 1.3rem); font-weight: 720; line-height: 1.42; white-space: nowrap; }
.sy-home-points { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.sy-home-points li { padding: 0.42rem 0.62rem; border: 1px solid var(--sy-line); border-radius: 0.45rem; color: var(--sy-muted); font-size: 0.75rem; font-weight: 650; }

.sy-home-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: auto;
  padding: 0 1.2rem;
  border-radius: 0.7rem;
  background: var(--sy-blue);
  color: #071124;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 850;
  transition: transform 180ms ease, filter 180ms ease;
}
.sy-home-button:hover { transform: translateY(-2px); filter: brightness(1.08); }
.sy-home-button:active { transform: translateY(1px); }
.sy-home-button:focus-visible { outline: 3px solid rgba(118, 160, 247, 0.72); outline-offset: 3px; }

.sy-home-price {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  margin-top: 0.875rem;
  padding: 1.1rem 1.75rem;
  border: 1px solid rgba(115, 125, 255, 0.4);
  border-radius: 1.125rem;
  background:
    radial-gradient(circle at 50% 120%, rgba(108, 85, 255, 0.2), transparent 38%),
    linear-gradient(115deg, rgba(32, 35, 89, 0.92), rgba(11, 20, 42, 0.98));
}
.sy-home-price-title { color: #f4f7fd; font-size: 1.65rem; font-weight: 850; }
.sy-home-price-title span { display: block; margin-top: 0.45rem; color: #aebbd0; font-size: 0.8rem; font-weight: 600; }
.sy-home-price-value { padding: 0 2.25rem; border-inline: 1px solid rgba(123, 161, 229, 0.22); color: var(--sy-price); font-size: clamp(3.25rem, 5.4vw, 5rem); font-weight: 920; line-height: 0.9; letter-spacing: -0.06em; white-space: nowrap; font-variant-numeric: tabular-nums; }
.sy-home-price-value small { color: #f4f7fd; font-size: 1.15rem; letter-spacing: 0; }
.sy-home-price-action { display: flex; align-items: center; justify-content: flex-end; gap: 1.5rem; min-width: 0; }
.sy-home-price-copy { color: #c3cde0; font-size: 0.84rem; line-height: 1.75; white-space: nowrap; }
.sy-home-price .sy-home-button { flex: 0 0 auto; margin: 0; }

@media (max-width: 1120px) {
  .sy-home-price-copy { display: none; }
}

@media (max-width: 1000px) {
  .sy-home-card-inner { padding: 1.5rem; }
  .sy-home-card h2 { font-size: clamp(1.8rem, 4.2vw, 2.5rem); }
  .sy-home-line { font-size: 0.98rem; white-space: normal; text-wrap: pretty; }
  .sy-home-price { gap: 1rem; padding-inline: 1.25rem; }
  .sy-home-price-value { padding-inline: 1.25rem; }
  .sy-home-price-copy { display: none; }
}

@media (max-width: 760px) {
  #top.sy-home-section { padding: 5.5rem 0.65rem 1.4rem; min-height: 100svh; justify-content: flex-start; }
  .sy-home-intro { display: block; min-height: 0; padding: 1.7rem 0 1.35rem; }
  .sy-home-intro h1 { max-width: 9em; font-size: clamp(2.25rem, 11vw, 3rem); line-height: 1.08; }
  .sy-home-intro p { max-width: 32em; margin-top: 1rem; font-size: 0.94rem; text-align: left; }
  .sy-home-capabilities { grid-template-columns: 1fr; gap: 0.75rem; }
  .sy-home-card { min-height: 0; transform: none; }
  .sy-home-card-inner { padding: 1.4rem 1.15rem 1.15rem; }
  .sy-home-icon { width: 4.6rem; height: 4.6rem; margin-top: -0.2rem; border-radius: 1.1rem; }
  .sy-home-icon svg { width: 3.35rem; height: 3.35rem; }
  .sy-home-card h2 { margin: 0.4rem 0 0.75rem; font-size: clamp(1.75rem, 8vw, 2.25rem); white-space: nowrap; }
  .sy-home-line { font-size: 1.1rem; }
  .sy-home-button { width: 100%; min-height: 50px; margin-top: 1.2rem; }
  .sy-home-price { grid-template-columns: 1fr; gap: 1rem; padding: 1.65rem 1.35rem; }
  .sy-home-price-title { font-size: 1.45rem; }
  .sy-home-price-value { padding: 1rem 0; border-inline: 0; border-block: 1px solid rgba(123, 161, 229, 0.22); font-size: clamp(3.6rem, 18vw, 4.75rem); }
  .sy-home-price-copy { display: block; }
  .sy-home-price-action { display: block; padding-right: 0; }
  .sy-home-price .sy-home-button { margin-top: 1rem; }
  .sy-home-price { padding-bottom: 5.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .sy-home-card, .sy-home-button { transition: none !important; transform: none !important; }
  .sy-home-icon-path { animation: none !important; }
}