:root {
  --bg: #06111d;
  --bg-deep: #030913;
  --panel: rgba(8, 22, 39, 0.74);
  --panel-strong: rgba(7, 19, 34, 0.92);
  --line: rgba(81, 196, 255, 0.16);
  --line-strong: rgba(81, 196, 255, 0.28);
  --text: #eff7ff;
  --muted: #9bb5ca;
  --muted-strong: #c5d7e8;
  --cyan: #1ad1ff;
  --sky: #1692ff;
  --blue: #1b4fff;
  --emerald: #17df8b;
  --lime: #bdf93c;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.35);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --max-width: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(26, 209, 255, 0.14), transparent 24%),
    radial-gradient(circle at top right, rgba(173, 255, 47, 0.09), transparent 18%),
    linear-gradient(180deg, #06111d 0%, #04101b 42%, #050b15 100%);
  font-family: "Noto Sans SC", "IBM Plex Sans", sans-serif;
}

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

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

.site-shell {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(24px);
  opacity: 0.55;
  pointer-events: none;
}

.ambient-left {
  top: 96px;
  left: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.22), transparent 70%);
}

.ambient-right {
  top: 360px;
  right: -120px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(151, 255, 84, 0.2), transparent 70%);
}

.grid-layer {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(123, 187, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123, 187, 255, 0.06) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.7), transparent 85%);
  pointer-events: none;
}

.site-header,
.hero,
.section,
.strip,
.site-footer {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  width: 54px;
  height: 54px;
  flex: 0 0 54px;
}

.brand-copy {
  display: grid;
  gap: 3px;
}

.brand-copy strong {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  color: var(--muted-strong);
  font-size: 0.97rem;
}

.site-nav a {
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.header-cta {
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid rgba(139, 230, 66, 0.36);
  background: linear-gradient(135deg, rgba(6, 39, 63, 0.86), rgba(7, 27, 45, 0.9));
  color: #edfff1;
}

.header-cta:hover,
.button:hover {
  transform: translateY(-1px);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: center;
  padding: 60px 0 44px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 18px;
  color: #9ff3c6;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.panel-title h3,
.contact-copy h2 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 5.3rem);
  line-height: 1.04;
}

.hero h1 span {
  display: block;
  color: #bdf93c;
}

.hero-description,
.section-heading p,
.difference-card p,
.mode-card p,
.feature-card p,
.agent-card p,
.contact-copy p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 1.02rem;
}

.hero-description {
  max-width: 640px;
  margin: 22px 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  min-height: 54px;
  padding: 0 22px;
}

.button.primary {
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  color: #04202c;
  box-shadow: 0 18px 42px rgba(66, 228, 167, 0.2);
}

.button.secondary {
  border: 1px solid rgba(67, 174, 255, 0.28);
  background: rgba(9, 23, 38, 0.72);
  color: var(--text);
}

.hero-notes {
  display: grid;
  gap: 12px;
  max-width: 640px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.hero-notes li {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 15px 18px 15px 56px;
  border: 1px solid rgba(81, 196, 255, 0.13);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(9, 24, 41, 0.72), rgba(7, 19, 32, 0.92));
  box-shadow: inset 0 1px 0 rgba(126, 204, 255, 0.06);
}

.hero-notes li::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 21px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  box-shadow:
    0 0 0 8px rgba(23, 223, 139, 0.08),
    0 0 22px rgba(26, 209, 255, 0.14);
}

.hero-notes strong {
  display: block;
  color: #a8ddff;
  font-family: "Noto Sans SC", "IBM Plex Sans", sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero-notes span {
  display: block;
  color: var(--muted-strong);
  font-size: 1rem;
  line-height: 1.62;
}

.hero-panel {
  position: relative;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: auto 14% -8% 14%;
  height: 60px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.4);
  filter: blur(28px);
}

.terminal-card,
.feature-card,
.difference-panel,
.difference-card,
.mode-card,
.agent-card,
.contact-card,
.matrix,
.strip {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(10, 28, 48, 0.9), rgba(6, 18, 31, 0.94));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.terminal-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.terminal-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(130deg, rgba(26, 209, 255, 0.1), transparent 30%),
    linear-gradient(320deg, rgba(189, 249, 60, 0.1), transparent 28%);
  pointer-events: none;
}

.terminal-top {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 13, 23, 0.66);
}

.terminal-top p {
  margin: 0;
  color: var(--muted-strong);
  font-size: 0.9rem;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.cyan {
  background: var(--cyan);
}

.terminal-dot.blue {
  background: var(--sky);
}

.terminal-dot.green {
  background: var(--lime);
}

.terminal-body {
  padding: 24px;
}

.terminal-flow {
  display: grid;
  gap: 14px;
}

.flow-card {
  position: relative;
  border: 1px solid rgba(97, 192, 255, 0.12);
  border-radius: 20px;
  padding: 18px 18px 18px 68px;
  background: rgba(8, 23, 40, 0.66);
}

.flow-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 38px;
  border-radius: 12px;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.flow-card span {
  position: absolute;
  left: 16px;
  top: 16px;
  background: linear-gradient(135deg, rgba(21, 163, 255, 0.2), rgba(189, 249, 60, 0.18));
  color: #dffcff;
}

.flow-card strong,
.feature-card h3,
.difference-card h3,
.mode-card h3,
.agent-card h3 {
  display: block;
  margin: 0;
  font-size: 1.08rem;
}

.flow-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.72;
  font-size: 0.94rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.metric-card {
  padding: 16px 16px 18px;
  border-radius: 20px;
  border: 1px solid rgba(97, 192, 255, 0.12);
  background: rgba(8, 22, 38, 0.64);
}

.metric-card p,
.metric-card span {
  margin: 0;
}

.metric-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.metric-card strong {
  display: block;
  margin: 8px 0 10px;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.metric-card span {
  color: var(--muted-strong);
  line-height: 1.6;
  font-size: 0.9rem;
}

.strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 18px 22px;
  border-radius: 24px;
}

.strip div {
  color: var(--muted-strong);
  font-size: 0.95rem;
}

.section {
  padding: 92px 0 0;
}

.section-heading {
  max-width: 840px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3.8vw, 3.4rem);
  line-height: 1.13;
}

.section-heading p {
  margin-top: 18px;
}

.feature-grid,
.difference-layout,
.mode-grid,
.agent-grid {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

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

.feature-card,
.mode-card,
.agent-card,
.difference-card {
  border-radius: 24px;
  padding: 24px;
}

.mode-card {
  position: relative;
  display: grid;
  align-content: start;
  gap: 16px;
  overflow: hidden;
}

.mode-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(26, 209, 255, 0.54), rgba(189, 249, 60, 0.26) 72%, transparent);
}

.feature-card,
.agent-card {
  position: relative;
  display: grid;
  align-content: start;
  gap: 14px;
  min-height: 100%;
  overflow: hidden;
}

.feature-card::before,
.agent-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(26, 209, 255, 0.6), rgba(189, 249, 60, 0.34) 68%, transparent);
}

.feature-card span,
.agent-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: start;
  min-width: 0;
  max-width: 100%;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-family: "Noto Sans SC", "IBM Plex Sans", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: none;
  white-space: nowrap;
}

.feature-card span,
.agent-card span,
.mode-top span {
  background: rgba(13, 35, 57, 0.8);
  color: #a8ddff;
  border: 1px solid rgba(57, 144, 235, 0.16);
}

.feature-card h3,
.difference-card h3,
.mode-card h3,
.agent-card h3 {
  margin-top: 0;
  line-height: 1.32;
  text-wrap: balance;
}

.feature-card p,
.difference-card p,
.agent-card p,
.mode-card p {
  margin: 0;
}

.difference-layout {
  grid-template-columns: 1.02fr 0.98fr;
  align-items: start;
}

.difference-panel {
  border-radius: 30px;
  padding: 28px;
}

.panel-title p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.rail {
  display: grid;
  gap: 18px;
  margin-top: 28px;
  padding-left: 18px;
  border-left: 1px solid rgba(93, 181, 255, 0.18);
}

.rail-step {
  position: relative;
  padding-left: 16px;
}

.rail-step::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 0.4rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  box-shadow: 0 0 0 8px rgba(11, 36, 58, 0.9);
}

.rail-step strong {
  display: block;
  font-size: 1rem;
}

.rail-step span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.7;
}

.difference-stack {
  display: grid;
  gap: 18px;
}

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

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

.mode-top {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 14px;
}

.mode-top span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: start;
  min-width: 0;
  max-width: 100%;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  white-space: nowrap;
  text-transform: uppercase;
}

.mode-top h3 {
  margin: 0;
  justify-self: end;
  text-align: right;
}

.mode-card ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted-strong);
  line-height: 1.65;
}

.matrix-section .section-heading {
  max-width: 760px;
}

.matrix {
  margin-top: 32px;
  border-radius: 26px;
  overflow: hidden;
}

.matrix-row {
  display: grid;
  grid-template-columns: 1.05fr 1fr 1fr;
}

.matrix-row > div {
  padding: 20px 22px;
  border-right: 1px solid rgba(93, 181, 255, 0.12);
  border-bottom: 1px solid rgba(93, 181, 255, 0.12);
  line-height: 1.72;
  color: var(--muted-strong);
}

.matrix-row > div:last-child {
  border-right: none;
}

.matrix-head > div {
  background: rgba(8, 20, 33, 0.88);
  color: #f4fbff;
  font-weight: 700;
}

.contact-section {
  padding-bottom: 92px;
}

.contact-card {
  display: grid;
  grid-template-columns: 1.1fr auto;
  gap: 24px;
  align-items: center;
  border-radius: 30px;
  padding: 34px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 0 0 34px;
  color: rgba(184, 208, 230, 0.72);
  font-size: 0.9rem;
  line-height: 1.7;
}

.site-footer p {
  margin: 0;
  max-width: 520px;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

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

@media (prefers-reduced-motion: no-preference) {
  .ambient-left {
    animation: drift 12s ease-in-out infinite;
  }

  .ambient-right {
    animation: drift 16s ease-in-out infinite reverse;
  }

  .terminal-card {
    animation: floatCard 8s ease-in-out infinite;
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, 18px, 0);
  }
}

@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@media (max-width: 1120px) {
  .hero,
  .difference-layout,
  .contact-card {
    grid-template-columns: 1fr;
  }

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

  .hero {
    gap: 28px;
  }

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

@media (max-width: 860px) {
  .site-header {
    display: grid;
    grid-template-columns: 1fr;
    align-items: start;
    gap: 14px;
    padding-top: 18px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .site-nav a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    border: 1px solid rgba(81, 196, 255, 0.12);
    border-radius: 999px;
    background: rgba(8, 22, 38, 0.56);
  }

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

  .header-cta {
    width: 100%;
  }

  .metrics-grid,
  .strip,
  .feature-grid,
  .mode-grid,
  .matrix-row,
  .contact-actions,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 26px;
    padding-top: 38px;
  }

  .hero h1 {
    font-size: clamp(2.3rem, 10.6vw, 3.7rem);
    line-height: 1.02;
    text-wrap: balance;
  }

  .hero-description {
    font-size: 1rem;
    line-height: 1.75;
  }

  .hero-actions {
    gap: 10px;
  }

  .hero-notes {
    max-width: none;
  }

  .section {
    padding-top: 76px;
  }

  .section-heading h2 {
    text-wrap: balance;
  }

  .mode-top {
    grid-template-columns: 1fr;
    gap: 10px;
    align-items: start;
  }

  .mode-top h3 {
    justify-self: start;
    text-align: left;
  }

  .matrix {
    display: grid;
    gap: 14px;
    background: none;
    border: none;
    box-shadow: none;
    backdrop-filter: none;
    overflow: visible;
  }

  .matrix-row {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid var(--line);
    border-radius: 22px;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(10, 28, 48, 0.9), rgba(6, 18, 31, 0.94));
    box-shadow: var(--shadow);
  }

  .matrix-row.matrix-head {
    display: none;
  }

  .matrix-row > div {
    border-right: none;
    padding: 15px 18px;
  }

  .matrix-row > div:first-child {
    background: rgba(8, 20, 33, 0.88);
    color: #f4fbff;
    font-weight: 700;
  }

  .matrix-row > div:nth-child(2),
  .matrix-row > div:nth-child(3) {
    display: grid;
    gap: 6px;
  }

  .matrix-row > div:nth-child(2)::before,
  .matrix-row > div:nth-child(3)::before {
    font-family: "IBM Plex Sans", sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .matrix-row > div:nth-child(2)::before {
    content: "SuperDash BI";
    color: #a8ddff;
  }

  .matrix-row > div:nth-child(3)::before {
    content: "传统工具组合";
    color: var(--muted);
  }

  .matrix-row > div:last-child {
    border-bottom: none;
  }
}

@media (max-width: 620px) {
  .site-header,
  .hero,
  .section,
  .strip,
  .site-footer {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .brand-copy small,
  .site-nav {
    font-size: 0.72rem;
  }

  .brand img {
    width: 48px;
    height: 48px;
    flex-basis: 48px;
  }

  .brand-copy strong {
    font-size: 1rem;
  }

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

  .terminal-body,
  .difference-panel,
  .feature-card,
  .mode-card,
  .agent-card,
  .difference-card,
  .contact-card {
    padding: 20px;
  }

  .flow-card {
    padding-left: 18px;
    padding-top: 64px;
  }

  .flow-card span {
    left: 18px;
  }

  .eyebrow {
    margin-bottom: 12px;
    font-size: 0.76rem;
    letter-spacing: 0.12em;
  }

  .hero {
    gap: 22px;
    padding-top: 28px;
  }

  .hero h1 {
    font-size: clamp(2.05rem, 12vw, 3rem);
    line-height: 1.03;
    letter-spacing: -0.03em;
  }

  .hero-description,
  .section-heading p {
    font-size: 0.97rem;
    line-height: 1.78;
  }

  .hero-notes span {
    font-size: 0.94rem;
  }

  .section-heading h2 {
    font-size: clamp(1.82rem, 9vw, 2.5rem);
    line-height: 1.16;
  }

  .mode-card ul {
    gap: 9px;
    margin-top: 16px;
    padding-left: 16px;
  }

  .hero-notes li {
    padding: 14px 16px 14px 52px;
  }

  .hero-notes li::before {
    left: 20px;
  }

  .button,
  .header-cta {
    width: 100%;
  }
}