:root {
  --bg: #edf4ff;
  --bg-soft: #dfeafc;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --surface-lite: rgba(255, 255, 255, 0.62);
  --text: #16233b;
  --muted: #61708a;
  --line: rgba(22, 35, 59, 0.08);
  --line-strong: rgba(22, 35, 59, 0.14);
  --accent: #2d7cff;
  --accent-strong: #eef5ff;
  --accent-deep: #1d5ddb;
  --accent-fog: rgba(45, 124, 255, 0.12);
  --panel-glow: rgba(127, 177, 255, 0.24);
  --shadow: 0 22px 56px rgba(24, 46, 92, 0.1);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 14%, rgba(140, 188, 255, 0.42), transparent 24%),
    radial-gradient(circle at 72% 22%, rgba(77, 142, 255, 0.34), transparent 22%),
    radial-gradient(circle at 42% 76%, rgba(255, 194, 224, 0.22), transparent 28%),
    linear-gradient(135deg, #f7fbff 0%, #edf4ff 36%, #dce9ff 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.56), transparent 22%),
    radial-gradient(circle at 20% 12%, rgba(255, 255, 255, 0.45), transparent 18%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.25) 0, rgba(255, 255, 255, 0.25) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.22) 0, rgba(255, 255, 255, 0.22) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  opacity: 0.82;
}

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

.site-shell {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(120px);
  opacity: 0.52;
}

.glow-one {
  top: -80px;
  left: -70px;
  width: 320px;
  height: 320px;
  background: rgba(122, 174, 255, 0.28);
  animation: floatGlow 14s ease-in-out infinite;
}

.glow-two {
  top: 20%;
  right: -80px;
  width: 360px;
  height: 360px;
  background: rgba(71, 137, 255, 0.28);
  animation: floatGlow 16s ease-in-out infinite reverse;
}

.glow-three {
  bottom: -120px;
  left: 40%;
  width: 280px;
  height: 280px;
  background: rgba(255, 203, 235, 0.52);
  animation: pulseGlow 12s ease-in-out infinite;
}

.grid-mask {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.24), transparent 70%),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.3), transparent 64%);
  opacity: 0.75;
}

.section,
.site-footer {
  position: relative;
  z-index: 1;
  padding-inline: clamp(20px, 4vw, 72px);
}

.site-header {
  padding-inline: clamp(20px, 4vw, 72px);
}

.site-header {
  padding-top: 26px;
  z-index: 100;
}

.page-header {
  padding-bottom: 18px;
}

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(20px, 4vw, 72px);
  border: none;
  border-bottom: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(22px);
  box-shadow: 0 2px 12px rgba(24, 46, 92, 0.08);
  transition: transform 300ms ease, opacity 300ms ease, border-color 220ms ease, background 220ms ease;
}

.site-nav.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--line-strong);
}

/* === 导航栏隐藏状态 === */
.site-nav.is-hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: transparent;
  color: #10161f;
  font-weight: 800;
  overflow: hidden;
}

.brand-logo-wrap {
  background: transparent;
  box-shadow: none;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-copy strong {
  font-size: 0.98rem;
  letter-spacing: -0.01em;
}

.brand-copy small {
  color: var(--muted);
  letter-spacing: 0.01em;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  position: relative;
  color: var(--muted);
  font-size: 0.92rem;
  transition: color 180ms ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 100%;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(45, 124, 255, 0.92), rgba(45, 124, 255, 0.12));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  overflow: hidden;
  position: relative;
  transition: all 180ms ease;
}

.nav-cta:active,
.button:active {
  animation: buttonPress 300ms ease-out;
}

.nav-cta,
.button.primary {
  background: linear-gradient(180deg, #4b98ff 0%, #2d7cff 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.24), 0 12px 28px rgba(45, 124, 255, 0.24);
}

.button.secondary {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(241, 247, 255, 0.92));
  border-color: var(--line);
  color: var(--text);
}

.nav-cta::after,
.button::after {
  content: "";
  position: absolute;
  inset: -30% auto -30% -40%;
  width: 30%;
  transform: rotate(18deg) translateX(-220%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.36), transparent);
  transition: transform 540ms ease;
  pointer-events: none;
}

.nav-cta:hover::after,
.button:hover::after {
  transform: rotate(18deg) translateX(430%);
}

/* === 新增：按钮涟漪效果 === */
.button-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  pointer-events: none;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle.is-open span:first-child {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:last-child {
  transform: translateY(-7px) rotate(-45deg);
}

.hero,
.page-hero {
  display: grid;
  gap: 40px;
  align-items: center;
}

.hero {
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
  min-height: calc(100vh - 120px);
  padding-block: 52px 88px;
  gap: 60px;
  align-items: center;
}

.page-hero {
  min-height: 340px;
  padding-block: 86px 52px;
  align-items: end;
}

.about-hero {
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  align-items: stretch;
}

.hero-copy h1,
.page-hero-copy h1,
.section-heading h2,
.site-footer h2 {
  margin: 14px 0 0;
  line-height: 1.04;
}

.hero-copy h1 {
  max-width: 15ch;
  margin-inline: auto;
  font-size: clamp(3.6rem, 7vw, 7.2rem);
  line-height: 0.92;
  letter-spacing: -0.072em;
  text-wrap: balance;
}

.page-hero-copy h1,
.section-heading h2,
.site-footer h2 {
  font-size: clamp(2.5rem, 5.2vw, 4.2rem);
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.page-hero-copy {
  max-width: 760px;
  padding: 34px 36px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.48));
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 20px 50px rgba(168, 107, 42, 0.08);
  backdrop-filter: blur(18px);
}

.about-hero .page-hero-copy {
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-text,
.page-hero-copy p,
.feature-card p,
.product-card p,
.case-card p,
.stack-card p,
.solution-card p,
.about-card p,
.timeline-node p,
.showcase-copy p,
.site-footer p,
.matrix-cell,
.matrix-row {
  color: var(--muted);
  line-height: 1.72;
}

.hero-copy {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-announcement {
  display: inline-flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.hero-announcement span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(45, 124, 255, 0.16);
  background: rgba(255, 255, 255, 0.56);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
  color: var(--accent);
  font-size: 0.88rem;
  backdrop-filter: blur(16px);
}

.eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #6f7b89;
}

.hero-actions,
.section-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-data-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.hero-data-strip div {
  padding: 18px 20px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(239, 246, 255, 0.56));
  border: 1px solid rgba(45, 124, 255, 0.08);
  box-shadow: 0 16px 40px rgba(24, 46, 92, 0.06);
  backdrop-filter: blur(16px);
}

.hero-data-strip strong {
  display: block;
  font-size: 1.12rem;
  letter-spacing: -0.03em;
}

.hero-data-strip p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.68;
}

.hero-metrics,
.feature-grid,
.product-preview,
.case-grid,
.solution-grid,
.about-layout,
.timeline-grid,
.ideal-grid {
  display: grid;
  gap: 24px;
}

.hero-metrics {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 28px;
}

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

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

.solution-grid,
.about-layout,
.timeline-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.hero-panel,
.metric-card,
.feature-card,
.product-card,
.case-card,
.stack-card,
.solution-card,
.about-card,
.timeline-node,
.contact-card,
.showcase-card,
.help-card,
.help-topic-card,
.faq-item,
.help-hero-panel,
.ideal-card {
  position: relative;
  border: 1px solid rgba(29, 29, 31, 0.06);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.96), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.68));
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  overflow: hidden;
  transform: perspective(1200px) rotateX(var(--rotate-x, 0deg)) rotateY(var(--rotate-y, 0deg));
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  will-change: transform, box-shadow;
}

/* === 新增：非tilt-card的卡片也要悬停提升 === */
.feature-card:hover,
.product-card:hover,
.case-card:hover,
.solution-card:hover,
.about-card:hover,
.timeline-node:hover,
.help-card:hover,
.help-topic-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 64px rgba(13, 18, 28, 0.15), 0 0 0 1px rgba(133, 183, 255, 0.16);
  border-color: rgba(45, 124, 255, 0.12);
}

.hero-panel::before,
.metric-card::before,
.feature-card::before,
.product-card::before,
.case-card::before,
.stack-card::before,
.solution-card::before,
.about-card::before,
.timeline-node::before,
.contact-card::before,
.showcase-card::before,
.help-card::before,
.help-topic-card::before,
.faq-item::before,
.help-hero-panel::before,
.ideal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.16));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.hero-panel::after,
.metric-card::after,
.feature-card::after,
.product-card::after,
.case-card::after,
.stack-card::after,
.solution-card::after,
.about-card::after,
.timeline-node::after,
.contact-card::after,
.showcase-card::after,
.help-card::after,
.help-topic-card::after,
.faq-item::after,
.help-hero-panel::after,
.ideal-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(260px circle at var(--pointer-x, 50%) var(--pointer-y, 50%), rgba(45, 124, 255, 0.08), transparent 66%);
  opacity: 0;
  transition: opacity 180ms ease;
}

.tilt-card:hover {
  border-color: rgba(45, 124, 255, 0.16);
  box-shadow: 0 24px 58px rgba(13, 18, 28, 0.1), 0 0 0 1px rgba(133, 183, 255, 0.18);
  animation: liftCard 300ms ease-out;
}

.tilt-card:hover::after {
  opacity: 1;
}

.hero-panel,
.metric-card,
.feature-card,
.product-card,
.case-card,
.stack-card,
.solution-card,
.about-card,
.timeline-node,
.showcase-card,
.help-card,
.help-topic-card,
.faq-item,
.help-hero-panel,
.ideal-card {
  padding: 30px;
}

.hero-panel {
  background:
    radial-gradient(circle at top right, rgba(116, 171, 255, 0.36), transparent 30%),
    radial-gradient(circle at 24% 76%, rgba(255, 207, 233, 0.26), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(240, 247, 255, 0.78));
  min-height: 620px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  isolation: isolate;
}

.about-hero-panel {
  min-height: 100%;
}

.about-hero-panel .hero-visual {
  min-height: 280px;
  margin-block: 10px 18px;
}

.contact-card {
  padding: 34px;
}

.hero-panel-mark,
.case-top,
.stack-head {
  display: flex;
  gap: 12px;
  align-items: center;
}

.case-top,
.stack-head {
  justify-content: space-between;
}

.hero-panel-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-panel-copy strong {
  display: block;
  max-width: 14ch;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.hero-panel-copy p {
  margin: 14px 0 0;
  max-width: 28ch;
  color: var(--muted);
  line-height: 1.72;
}

.hero-panel-points {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-panel-points span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(29, 29, 31, 0.05);
  color: #3a3a3c;
}

.panel-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.96);
}

.tag,
.case-top strong,
.showcase-metrics span,
.mini-grid div,
.matrix-head,
.contact-note p,
.contact-note strong {
  margin: 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(45, 124, 255, 0.14);
  color: var(--accent);
  background: rgba(45, 124, 255, 0.08);
  font-size: 0.78rem;
}

.hero-highlights {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero-highlights span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(240, 247, 255, 0.8));
  border: 1px solid rgba(29, 29, 31, 0.06);
  color: #3a3a3c;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.hero-panel {
  width: 100%;
  max-width: 600px;
}

.hero-panel-mark {
  position: relative;
  z-index: 2;
}

.hero-panel-halo {
  position: absolute;
  border-radius: 999px;
  filter: blur(32px);
  z-index: 0;
}

.hero-panel-halo-a {
  top: 112px;
  right: 54px;
  width: 140px;
  height: 140px;
  background: rgba(121, 182, 255, 0.36);
}

.hero-panel-halo-b {
  left: 32px;
  bottom: 120px;
  width: 180px;
  height: 180px;
  background: rgba(255, 207, 233, 0.24);
}

.hero-visual {
  position: relative;
  min-height: 320px;
  margin-block: 16px 28px;
}

.visual-cube {
  position: absolute;
  top: 18px;
  right: 46px;
  width: 208px;
  height: 208px;
  transform-style: preserve-3d;
  animation: floatCube 9s ease-in-out infinite;
}

.cube-face {
  position: absolute;
  border-radius: 30px;
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(231, 241, 255, 0.56));
  box-shadow: 0 24px 48px rgba(53, 96, 177, 0.12);
}

.cube-top {
  inset: 0 16px auto 16px;
  height: 82px;
  transform: skewX(-28deg);
  transform-origin: top;
}

.cube-front {
  inset: 66px 54px 0 26px;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 54% 100%, 0 72%);
}

.cube-side {
  top: 66px;
  right: 8px;
  width: 78px;
  height: 138px;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 34% 100%, 0 72%);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(208, 227, 255, 0.52));
}

.floating-card,
.floating-chip {
  position: absolute;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(234, 243, 255, 0.62));
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 44px rgba(40, 72, 136, 0.1);
}

.floating-card {
  width: 190px;
  padding: 18px 18px 16px;
  border-radius: 22px;
}

.floating-card strong {
  display: block;
  font-size: 1rem;
  letter-spacing: -0.03em;
}

.floating-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.floating-card-top {
  top: 8px;
  left: 18px;
  animation: floatCard 8s ease-in-out infinite;
}

.floating-card-side {
  right: 6px;
  bottom: 18px;
  animation: floatCard 10s ease-in-out infinite reverse;
}

.floating-chip {
  min-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  color: var(--accent);
  font-size: 0.88rem;
}

.chip-a {
  left: 28px;
  bottom: 42px;
}

.chip-b {
  left: 138px;
  top: 162px;
}

.chip-c {
  right: 92px;
  top: 118px;
}

.hero-beam {
  position: absolute;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.72), transparent);
  opacity: 0.68;
  filter: blur(1px);
}

.beam-a {
  top: 122px;
  left: 110px;
  width: 210px;
  height: 2px;
}

.beam-b {
  top: 214px;
  left: 84px;
  width: 176px;
  height: 2px;
}

.panel-grid,
.mini-grid,
.showcase-metrics,
.footer-grid,
.matrix-grid {
  display: grid;
  gap: 18px;
}

.role-strip,
.process-strip {
  display: grid;
  gap: 16px;
}

.flow-overview,
.service-band,
.case-feature,
.case-feature-side,
.ideal-card {
  display: grid;
  gap: 16px;
}

.role-strip {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-bottom: 24px;
}

.process-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flow-overview {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 20px;
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 245, 233, 0.58));
  border: 1px solid rgba(29, 29, 31, 0.06);
  box-shadow: 0 18px 48px rgba(168, 107, 42, 0.06);
}

.flow-step {
  min-height: 220px;
  padding: 26px 22px;
  border-radius: 26px;
  background:
    radial-gradient(circle at top right, rgba(153, 196, 255, 0.28), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(241, 247, 255, 0.76));
  border: 1px solid rgba(29, 29, 31, 0.05);
  position: relative;
  overflow: hidden;
}

.flow-step-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.flow-step-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(45, 124, 255, 0.1);
  color: var(--muted);
  font-size: 0.8rem;
}

.flow-step-line {
  width: 100%;
  height: 1px;
  margin-top: 18px;
  background: linear-gradient(90deg, rgba(45, 124, 255, 0.24), rgba(45, 124, 255, 0.02));
}

.flow-step strong,
.service-meta strong,
.case-metrics strong {
  display: block;
  margin-top: 16px;
  letter-spacing: -0.03em;
}

.flow-step-note {
  margin-top: 8px;
}

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

.product-brief {
  max-width: 820px;
}

.panel-grid strong,
.feature-card h3,
.product-card h3,
.case-card strong,
.stack-head h2,
.solution-card h2,
.about-card h2,
.timeline-node strong,
.showcase-copy h2,
.flow-step h3,
.service-item h3,
.case-feature-main h3,
.help-card h3,
.help-topic-card h3,
.help-hero-panel h2,
.ideal-copy h3 {
  display: block;
  margin-bottom: 10px;
  letter-spacing: -0.03em;
}

.ideal-card {
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
  min-height: 220px;
  background:
    radial-gradient(circle at top right, rgba(255, 217, 153, 0.24), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 249, 244, 0.84));
}

.ideal-illustration {
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.96), transparent 46%),
    linear-gradient(180deg, rgba(255, 248, 240, 0.96), rgba(255, 237, 220, 0.88));
  border: 1px solid rgba(255, 122, 26, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.ideal-illustration svg {
  width: 68px;
  height: 68px;
}

.ideal-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.mini-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

.role-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 64px;
  padding: 14px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 122, 26, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 246, 235, 0.74));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
  font-weight: 600;
}

.flow-step h3,
.service-item h3,
.case-feature-main h3 {
  margin: 18px 0 0;
  line-height: 1.06;
}

.flow-step p,
.service-item p,
.case-feature-main p,
.case-feature-side p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.service-item {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 24px;
  align-items: center;
  padding: 26px 30px;
  border-top: 1px solid rgba(29, 29, 31, 0.08);
}

.service-item:first-child {
  border-top: 0;
}

.service-item h3 {
  margin-top: 14px;
}

.service-band {
  padding: 16px 18px;
  border-radius: 34px;
  background:
    radial-gradient(circle at 14% 16%, rgba(164, 203, 255, 0.18), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(241, 247, 255, 0.56));
  border: 1px solid rgba(29, 29, 31, 0.06);
  box-shadow: 0 18px 48px rgba(24, 46, 92, 0.06);
}

.service-points,
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.service-points span,
.footer-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(45, 124, 255, 0.08);
  color: var(--accent);
  font-size: 0.84rem;
}

.service-meta {
  padding: 18px 20px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(236, 244, 255, 0.56));
  border: 1px solid rgba(45, 124, 255, 0.08);
}

.service-meta p {
  margin-top: 0;
}

.case-feature {
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 22px;
  padding: 26px;
  border-radius: 36px;
  background:
    radial-gradient(circle at 82% 18%, rgba(140, 188, 255, 0.28), transparent 22%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(241, 247, 255, 0.76));
  border: 1px solid rgba(29, 29, 31, 0.06);
  box-shadow: 0 18px 48px rgba(168, 107, 42, 0.06);
}

.case-feature-main,
.case-feature-side > div {
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(249, 251, 255, 0.62));
  border: 1px solid rgba(29, 29, 31, 0.05);
}

.case-feature-main {
  padding: 32px;
}

.case-feature-main h3 {
  max-width: 12ch;
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.case-feature-side > div {
  padding: 22px 24px;
}

.case-feature-side strong {
  display: block;
  letter-spacing: -0.03em;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.case-metrics div {
  min-height: 118px;
  padding: 18px 18px 16px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(237, 245, 255, 0.56));
  border: 1px solid rgba(45, 124, 255, 0.08);
}

.case-metrics p {
  margin: 8px 0 0;
}

.mini-grid div,
.showcase-metrics div {
  min-height: 72px;
  padding: 20px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(248, 251, 255, 0.62));
  border: 1px solid rgba(29, 29, 31, 0.05);
}

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

.showcase-metrics strong {
  display: block;
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.case-points {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.section {
  padding-block: 132px;
}

.section-alt {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(240, 247, 255, 0.34) 78%),
    radial-gradient(circle at 10% 50%, rgba(140, 188, 255, 0.16), transparent 24%);
}

@keyframes floatCube {
  0%,
  100% {
    transform: translateY(0) rotate(-1deg);
  }
  50% {
    transform: translateY(-14px) rotate(1deg);
  }
}

@keyframes floatCard {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.section-heading {
  max-width: 820px;
  margin-bottom: 42px;
}

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

.matrix-grid {
  grid-template-columns: 1.1fr repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.matrix-head,
.matrix-row,
.matrix-cell {
  padding: 18px 20px;
  border-right: 1px solid rgba(29, 29, 31, 0.05);
  border-bottom: 1px solid rgba(29, 29, 31, 0.05);
  background: rgba(255, 255, 255, 0.68);
}

.matrix-head {
  color: var(--text);
  font-weight: 700;
}

.matrix-grid > :nth-last-child(-n + 4) {
  border-bottom: 0;
}

.matrix-grid > :nth-child(4n) {
  border-right: 0;
}

.product-stack,
.case-showcase,
.help-topic-grid,
.help-resource-grid,
.faq-list {
  display: grid;
  gap: 18px;
}

.help-hero {
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 360px);
}

.help-hero-panel {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    radial-gradient(circle at top right, rgba(255, 214, 132, 0.28), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 247, 239, 0.8));
}

.help-quick-links,
.faq-list {
  display: grid;
  gap: 14px;
}

.help-quick-links a,
.text-link {
  color: var(--accent);
  font-weight: 600;
}

.help-topic-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.help-topic-card,
.help-card {
  display: block;
}

.help-content-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

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

.help-resource-grid .help-card:nth-child(4) {
  grid-column: span 3;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  position: relative;
  z-index: 1;
  padding: 24px 56px 24px 24px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 24px;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 1.4rem;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0 24px 24px;
  color: var(--muted);
  line-height: 1.72;
}

.process-item strong {
  display: block;
  margin: 14px 0 10px;
  letter-spacing: -0.02em;
}

.process-item p {
  margin: 0;
}

.showcase-card {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 18px;
}

.contact-card,
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}

.footer-grid {
  grid-template-columns: 1.4fr 0.9fr 1fr;
}

.site-footer {
  padding-top: 24px;
  padding-bottom: 56px;
  border-top: 1px solid rgba(29, 29, 31, 0.06);
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.52));
}

.site-footer::before {
  content: "";
  display: block;
  width: min(100%, 1160px);
  height: 1px;
  margin: 0 auto 28px;
  background: linear-gradient(90deg, transparent, rgba(255, 122, 26, 0.18), transparent);
}

.site-footer a,
.site-footer strong {
  display: block;
  margin-bottom: 10px;
}

.footer-brand-card,
.footer-links,
.footer-contact {
  padding: 24px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(240, 247, 255, 0.56));
  border: 1px solid rgba(29, 29, 31, 0.05);
  box-shadow: 0 18px 42px rgba(24, 46, 92, 0.05);
}

.footer-inline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  margin-top: 10px;
  background: linear-gradient(180deg, #4b98ff 0%, #2d7cff 100%);
  color: #fff;
  box-shadow: 0 12px 28px rgba(45, 124, 255, 0.2);
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  filter: blur(10px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1), filter 700ms ease;
}

.reveal-down {
  transform: translateY(-20px);
}

.reveal-right {
  transform: translateX(32px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  filter: blur(0);
}

/* === 新增：单字符动画 === */
.reveal-char {
  display: inline-block;
  opacity: 0;
  animation: fadeInUp 600ms ease-out forwards;
}

.stagger-1 {
  transition-delay: 80ms;
  animation-delay: 80ms;
}

.stagger-2 {
  transition-delay: 160ms;
  animation-delay: 160ms;
}

.stagger-3 {
  transition-delay: 240ms;
  animation-delay: 240ms;
}

/* === 新增：计数器样式 === */
.counter {
  font-weight: 700;
  font-size: 1.4rem;
  animation: countUp 600ms ease-out;
}

/* === 新增：加载骨架屏样式 === */
.skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.4));
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

@keyframes floatGlow {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  50% {
    transform: translate3d(18px, 20px, 0) scale(1.05);
  }
}

@keyframes pulseGlow {
  0%,
  100% {
    transform: scale(0.92);
    opacity: 0.44;
  }

  50% {
    transform: scale(1.06);
    opacity: 0.9;
  }
}

/* === 新增：按钮点击反馈 === */
@keyframes buttonPress {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.96);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.8;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* === 新增：卡片悬停提升 === */
@keyframes liftCard {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-8px);
  }
}

/* === 新增：数字计数动画 === */
@keyframes countUp {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* === 新增：输入框焦点光晕 === */
@keyframes focusGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(45, 124, 255, 0.4);
  }
  100% {
    box-shadow: 0 0 0 8px rgba(45, 124, 255, 0);
  }
}

/* === 新增：文本闪烁进入 === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === 新增：滚动视差 === */
.parallax {
  position: relative;
}

.parallax-bg {
  will-change: transform;
}

@media (max-width: 1080px) {
  .site-nav {
    gap: 16px;
  }

  .hero,
  .feature-grid,
  .product-preview,
  .case-grid,
  .solution-grid,
  .about-layout,
  .timeline-grid,
  .ideal-grid,
  .help-topic-grid,
  .knowledge-grid,
  .help-content-grid,
  .help-resource-grid,
  .hero-metrics,
  .showcase-card,
  .contact-card,
  .footer-grid,
  .panel-grid,
  .matrix-grid,
  .role-strip,
  .process-strip,
  .flow-overview,
  .case-feature {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .hero-data-strip {
    grid-template-columns: 1fr;
  }

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

  .hero-panel {
    min-height: auto;
  }

  .about-hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 280px;
  }

  .visual-cube {
    right: 20px;
    width: 188px;
    height: 188px;
  }

  .floating-card-side {
    right: 12px;
  }

  .ideal-card {
    grid-template-columns: 88px minmax(0, 1fr);
    min-height: auto;
  }

  .matrix-grid {
    overflow-x: auto;
  }

  .help-resource-grid .help-card:nth-child(4) {
    grid-column: auto;
  }

  .service-item {
    grid-template-columns: 1fr;
  }

  .page-hero-copy {
    padding: 28px;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav-panel {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    display: grid;
    gap: 14px;
    padding: 16px;
    border: 1px solid rgba(29, 29, 31, 0.08);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(18px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .nav-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-cta {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .site-nav {
    padding: 12px clamp(16px, 3vw, 20px);
  }

  .hero,
  .page-hero {
    padding-block: 56px 40px;
  }

  .flow-step,
  .service-item,
  .case-feature-main,
  .case-feature-side > div {
    padding: 20px;
  }

  .hero-highlights {
    flex-direction: column;
  }

  .hero-announcement {
    margin-top: 12px;
  }

  .hero-data-strip {
    gap: 12px;
  }

  .service-points,
  .footer-badges {
    gap: 8px;
  }

  .service-points span,
  .footer-badges span,
  .flow-step-chip {
    width: 100%;
    justify-content: center;
  }

  .hero-panel-copy strong,
  .hero-panel-copy p {
    max-width: none;
  }

  .hero-panel {
    min-height: 540px;
  }

  .hero-visual {
    min-height: 250px;
    margin-block: 8px 22px;
  }

  .visual-cube {
    top: 28px;
    right: 8px;
    width: 150px;
    height: 150px;
  }

  .cube-top {
    inset-inline: 12px;
    height: 58px;
  }

  .cube-front {
    inset: 46px 38px 0 18px;
  }

  .cube-side {
    top: 46px;
    width: 58px;
    height: 102px;
  }

  .floating-card {
    width: 154px;
    padding: 14px 14px 12px;
  }

  .floating-card p,
  .floating-chip {
    font-size: 0.8rem;
  }

  .floating-card-top {
    left: 0;
    top: 14px;
  }

  .floating-card-side {
    right: 0;
    bottom: 6px;
  }

  .chip-a {
    left: 10px;
    bottom: 36px;
  }

  .chip-b {
    left: 88px;
    top: 132px;
  }

  .chip-c {
    right: 68px;
    top: 92px;
  }

  .beam-a,
  .beam-b {
    display: none;
  }

  .page-hero-copy {
    padding: 22px;
    border-radius: 24px;
  }

  .hero-panel,
  .metric-card,
  .feature-card,
  .product-card,
  .case-card,
  .stack-card,
  .solution-card,
  .about-card,
  .timeline-node,
  .contact-card,
  .showcase-card,
  .help-card,
  .help-topic-card,
  .faq-item,
  .help-hero-panel,
  .ideal-card {
    padding: 20px;
  }

  .ideal-card {
    grid-template-columns: 1fr;
  }

  .ideal-illustration {
    width: 84px;
    height: 84px;
    border-radius: 24px;
  }

  .ideal-illustration svg {
    width: 60px;
    height: 60px;
  }

  .showcase-metrics,
  .mini-grid,
  .case-metrics {
    grid-template-columns: 1fr;
  }

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

  .hero-actions,
  .section-actions {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .glow {
    animation: none;
  }

  .visual-cube,
  .floating-card {
    animation: none;
  }

  .reveal,
  .reveal.is-visible,
  .tilt-card,
  .site-nav,
  .nav-cta::after,
  .button::after {
    transition: none;
    transform: none;
    filter: none;
    opacity: 1;
  }
}

/* === 新增：悬浮客服按钮与弹窗 === */

/* 悬浮按钮 */
.fab-contact {
  position: fixed;
  top: 50%;
  right: 28px;
  transform: translateY(-50%);
  z-index: 990;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white; /* 头像自带背景，边框换为白 */
  color: white;
  border: 2px solid white;
  box-shadow: 0 12px 28px rgba(24, 46, 92, 0.15), inset 0 1px 0 rgba(255,255,255,0.4);
  cursor: pointer;
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 300ms ease;
  padding: 0;
}

.fab-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.fab-online-badge {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 14px;
  height: 14px;
  background-color: #10B981;
  border: 2px solid white;
  border-radius: 50%;
}

.fab-contact:hover {
  transform: translateY(-50%) scale(1.5);
  box-shadow: 0 16px 36px rgba(24, 46, 92, 0.25), inset 0 1px 0 rgba(255,255,255,0.5);
}

.fab-contact:active {
  transform: translateY(-50%) scale(0.95);
}

/* 弹窗遮罩 */
.contact-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(237, 244, 255, 0.75);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}

.contact-modal-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* 弹窗主体 */
.contact-modal {
  position: relative;
  width: 100%;
  max-width: 640px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 32px;
  box-shadow: 0 40px 100px rgba(24, 46, 92, 0.12), inset 0 1px 0 rgba(255,255,255,1);
  padding: 48px;
  transform: scale(0.96) translateY(20px);
  opacity: 0;
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1), opacity 400ms ease;
}

.contact-modal-overlay.is-visible .contact-modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.contact-modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(22, 35, 59, 0.04);
  color: var(--muted);
  font-size: 24px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 200ms ease;
}

.contact-modal-close:hover {
  background: rgba(22, 35, 59, 0.08);
  color: var(--text);
  transform: rotate(90deg);
}

.contact-modal-header {
  text-align: center;
  margin-bottom: 36px;
}

.contact-modal-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0;
  padding-right: 20px; /* 留出关闭按钮空间避免重叠 */
  letter-spacing: -0.04em;
}

.contact-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.contact-option-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px 24px;
  background: linear-gradient(180deg, rgba(255,255,255,1), rgba(246,249,255,0.6));
  border: 1px solid rgba(45, 124, 255, 0.12);
  border-radius: 20px;
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(24, 46, 92, 0.03);
  transition: all 300ms ease;
  text-decoration: none;
}

.contact-option-card p {
   margin: 0;
}

.contact-option-card svg {
  color: var(--muted);
  margin-bottom: 20px;
  transition: color 300ms ease, transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-option-card strong {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.contact-option-card span {
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-option-card:hover {
  transform: translateY(-6px);
  border-color: rgba(45, 124, 255, 0.3);
  box-shadow: 0 20px 48px rgba(45, 124, 255, 0.1);
  background: rgba(255,255,255,1);
}

.contact-option-card:hover svg {
  color: var(--accent);
  transform: scale(1.1);
}

/* 适配移动端 */
@media (max-width: 640px) {
  .contact-modal {
    padding: 32px 24px;
  }
  .contact-options {
    grid-template-columns: 1fr;
  }
}

/* === 新增：底部简单通用 Footer === */
.simple-footer {
  padding-block: 40px 60px;
  margin-top: 20px;
  background: transparent;
}

.simple-footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: calc(100% - 48px);
  max-width: 1000px;
  margin: 0 auto;
  padding: 32px 40px;
  border: 1px solid rgba(29, 29, 31, 0.06);
  border-radius: var(--radius);
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.96), transparent 36%),
              linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.68));
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.simple-footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.simple-footer-links a {
  color: #6f7b89;
  font-size: 0.85rem;
  transition: color 150ms ease;
  text-decoration: none;
}

.simple-footer-links a:hover {
  color: var(--text);
}

.simple-footer-links .separator {
  color: rgba(29, 29, 31, 0.15);
  font-size: 0.85rem;
}

.simple-footer-copyright p {
  margin: 0;
  color: #999;
  font-size: 0.8rem;
  text-align: center;
}