:root {
  --orange: #f36b21;
  --orange-dark: #b94412;
  --ink: #17202a;
  --muted: #667085;
  --line: #dfe4ea;
  --paper: #ffffff;
  --mist: #f5f7f9;
  --teal: #18a999;
  --blue: #3574d4;
  --charcoal: #26313d;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgb(255 255 255 / 0.92);
  border-bottom: 1px solid rgb(223 228 234 / 0.72);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}

.brand-logo {
  display: block;
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  color: #344054;
  font-size: 15px;
}

.nav a {
  white-space: nowrap;
}

.nav-cta {
  padding: 10px 16px;
  color: #fff;
  background: var(--ink);
  border-radius: 999px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(390px, 1.1fr);
  gap: clamp(36px, 6vw, 92px);
  align-items: center;
  min-height: calc(100vh - 75px);
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px) 64px;
  background:
    radial-gradient(circle at 82% 20%, rgb(24 169 153 / 0.15), transparent 30%),
    linear-gradient(135deg, #fff 0%, #fff6ef 42%, #eef7fb 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--orange-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(38px, 4.45vw, 62px);
  line-height: 1.12;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
  line-height: 1.3;
}

.lead {
  max-width: 650px;
  color: #425466;
  font-size: 19px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  font-weight: 800;
  border-radius: 999px;
}

.button.primary {
  color: #fff;
  background: var(--orange);
  box-shadow: 0 16px 34px rgb(243 107 33 / 0.28);
}

.button.secondary {
  color: var(--ink);
  background: rgb(255 255 255 / 0.78);
  border: 1px solid var(--line);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 640px;
  margin: 0;
}

.hero-metrics div {
  padding: 18px;
  background: rgb(255 255 255 / 0.74);
  border: 1px solid rgb(223 228 234 / 0.82);
  border-radius: var(--radius);
}

.hero-metrics dt {
  margin-bottom: 4px;
  font-size: 28px;
  font-weight: 900;
}

.hero-metrics dd {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.product-visual {
  position: relative;
}

.product-visual::before {
  position: absolute;
  inset: 11% -5% -7% 8%;
  content: "";
  background: linear-gradient(135deg, rgb(243 107 33 / 0.16), rgb(24 169 153 / 0.17));
  border-radius: 48%;
  filter: blur(18px);
}

.visual-shell {
  position: relative;
  overflow: hidden;
  min-height: 560px;
  background: #101820;
  border: 1px solid rgb(255 255 255 / 0.18);
  border-radius: 8px;
  box-shadow: 0 34px 80px rgb(23 32 42 / 0.24);
}

.window-bar {
  display: flex;
  gap: 8px;
  height: 44px;
  align-items: center;
  padding: 0 18px;
  background: #1d2732;
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
}

.window-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ffbe55;
}

.window-bar span:first-child {
  background: #ff6d57;
}

.window-bar span:last-child {
  background: #32d583;
}

.dashboard {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 180px;
  gap: 14px;
  min-height: 516px;
  padding: 18px;
  color: #ecf2f8;
  background:
    linear-gradient(90deg, rgb(255 255 255 / 0.045) 1px, transparent 1px),
    linear-gradient(rgb(255 255 255 / 0.045) 1px, transparent 1px),
    radial-gradient(circle at 78% 28%, rgb(243 107 33 / 0.22), transparent 28%),
    #111a23;
  background-size: 38px 38px, 38px 38px, auto, auto;
}

.channel-list,
.conversation,
.insights > div {
  background: rgb(255 255 255 / 0.07);
  border: 1px solid rgb(255 255 255 / 0.11);
  border-radius: 8px;
}

.channel-list {
  padding: 14px;
}

.channel-list p,
.conversation-head,
.score-card span,
.beacon-card span,
.cloud-card span {
  color: #aebdcc;
  font-size: 12px;
  font-weight: 800;
}

.channel {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  padding: 10px 8px;
  border-radius: 7px;
}

.channel.active {
  background: rgb(243 107 33 / 0.22);
}

.channel i {
  width: 9px;
  height: 9px;
  background: var(--teal);
  border-radius: 50%;
}

.channel b {
  color: #fff;
  font-size: 12px;
}

.conversation {
  padding: 16px;
}

.conversation-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.conversation-head button {
  width: 30px;
  height: 30px;
  background: var(--orange);
  border: 0;
  border-radius: 6px;
}

.message-row {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
  margin-bottom: 14px;
  padding: 14px;
  background: rgb(255 255 255 / 0.055);
  border-radius: 8px;
}

.message-row.selected {
  background: rgb(255 255 255 / 0.12);
  box-shadow: inset 3px 0 0 var(--orange);
}

.avatar {
  width: 34px;
  height: 34px;
  background: var(--teal);
  border-radius: 50%;
}

.avatar.orange {
  background: var(--orange);
}

.avatar.blue {
  background: var(--blue);
}

.message-row p {
  height: 10px;
  margin-bottom: 9px;
  background: rgb(255 255 255 / 0.28);
  border-radius: 999px;
}

.message-row p:first-child {
  width: 82%;
}

.message-row p:nth-child(2) {
  width: 54%;
}

.message-row em {
  display: inline-flex;
  margin-top: 2px;
  padding: 5px 8px;
  color: #ffe6d6;
  font-size: 11px;
  font-style: normal;
  background: rgb(243 107 33 / 0.22);
  border-radius: 999px;
}

.insights {
  display: grid;
  gap: 14px;
}

.score-card,
.beacon-card,
.cloud-card {
  padding: 16px;
}

.score-card strong {
  display: block;
  margin: 12px 0;
  font-size: 42px;
  line-height: 1;
}

.meter {
  height: 8px;
  background: rgb(255 255 255 / 0.16);
  border-radius: 999px;
}

.meter i {
  display: block;
  width: 74%;
  height: 100%;
  background: linear-gradient(90deg, var(--orange), var(--teal));
  border-radius: inherit;
}

.pulse-map {
  position: relative;
  min-height: 126px;
  margin-top: 16px;
  background:
    radial-gradient(circle at 50% 50%, rgb(24 169 153 / 0.22), transparent 52%),
    linear-gradient(135deg, rgb(255 255 255 / 0.13), transparent);
  border-radius: 8px;
}

.pulse-map i {
  position: absolute;
  width: 13px;
  height: 13px;
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgb(243 107 33 / 0.16);
}

.pulse-map i:first-child {
  top: 28px;
  left: 34px;
}

.pulse-map i:nth-child(2) {
  right: 36px;
  top: 48px;
  background: var(--teal);
  box-shadow: 0 0 0 8px rgb(24 169 153 / 0.16);
}

.pulse-map i:last-child {
  left: 70px;
  bottom: 24px;
  background: var(--blue);
  box-shadow: 0 0 0 8px rgb(53 116 212 / 0.16);
}

.cloud-card strong {
  display: block;
  margin-top: 12px;
  color: #32d583;
  font-size: 26px;
}

.section {
  padding: clamp(72px, 9vw, 122px) clamp(20px, 5vw, 72px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.62fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: end;
  margin-bottom: 34px;
}

.section-heading p:last-child,
.proof-copy p,
.about-panel p,
.principles p,
.timeline p,
.solution-card p,
.contact p {
  color: var(--muted);
  line-height: 1.75;
}

.section-heading.compact {
  display: block;
  max-width: 800px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.solution-card {
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgb(23 32 42 / 0.06);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  color: var(--orange-dark);
  font-weight: 900;
  background: #fff0e7;
  border-radius: 50%;
}

.solution-card ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.solution-card li {
  position: relative;
  padding-left: 20px;
  color: #344054;
  line-height: 1.5;
}

.solution-card li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--teal);
  border-radius: 50%;
}

.workflow {
  background: var(--mist);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.timeline article {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.timeline span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 24px;
  color: #fff;
  font-weight: 900;
  background: var(--charcoal);
  border-radius: 50%;
}

.proof {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 92px);
  align-items: center;
  padding: clamp(70px, 8vw, 112px) clamp(20px, 5vw, 72px);
  color: #fff;
  background:
    linear-gradient(135deg, rgb(23 32 42 / 0.95), rgb(38 49 61 / 0.96)),
    radial-gradient(circle at 78% 12%, rgb(243 107 33 / 0.24), transparent 26%);
}

.proof .eyebrow {
  color: #ffb888;
}

.proof-copy p {
  color: #c9d3df;
}

.logo-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}

.logo-strip span {
  display: grid;
  min-height: 104px;
  place-items: center;
  padding: 18px;
  background: #fff;
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: 8px;
}

.logo-strip img {
  display: block;
  max-width: 100%;
  max-height: 68px;
  object-fit: contain;
}

.about {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1fr);
  gap: clamp(28px, 6vw, 76px);
}

.about-panel {
  align-self: start;
  padding: clamp(28px, 4vw, 48px);
  background: #fff8f4;
  border: 1px solid #ffdfcb;
  border-radius: var(--radius);
}

.principles {
  display: grid;
  gap: 14px;
}

.principles article {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.principles article:first-child {
  padding-top: 0;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.58fr);
  gap: 28px;
  align-items: center;
  margin: 0 clamp(20px, 5vw, 72px) clamp(32px, 5vw, 72px);
  padding: clamp(34px, 5vw, 56px);
  color: #fff;
  background: linear-gradient(135deg, var(--orange), #26313d);
  border-radius: 8px;
}

.contact .eyebrow,
.contact p {
  color: rgb(255 255 255 / 0.82);
}

.contact address {
  display: grid;
  gap: 12px;
  font-style: normal;
}

.contact address a,
.contact address span {
  padding: 14px 16px;
  background: rgb(255 255 255 / 0.12);
  border: 1px solid rgb(255 255 255 / 0.18);
  border-radius: 8px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 1020px) {
  .hero,
  .section-heading,
  .proof,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
  }

  .nav {
    display: none;
  }

  .hero {
    padding-top: 40px;
  }

  .hero-metrics,
  .solution-grid,
  .timeline,
  .logo-strip {
    grid-template-columns: 1fr;
  }

  .visual-shell {
    min-height: 470px;
  }

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

  .channel-list,
  .insights {
    display: none;
  }

  h1 {
    font-size: 38px;
  }

  .site-footer {
    flex-direction: column;
  }
}