:root {
  --bg: #eaf7ff;
  --bg-2: #f6fbff;
  --panel: rgba(255, 255, 255, 0.76);
  --panel-2: rgba(255, 255, 255, 0.92);
  --line: rgba(47, 151, 211, 0.22);
  --line-strong: rgba(23, 132, 200, 0.42);
  --text: #12304a;
  --muted: #527188;
  --green: #1685c7;
  --amber: #d99223;
  --cyan: #2fb7e8;
  --risk: #cf6548;
  --paper: #ffffff;
  --dark-text: #12304a;
  --shadow: 0 22px 80px rgba(30, 120, 180, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, #eaf7ff 0%, #f8fcff 48%, #e4f4ff 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.62;
}

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

button {
  font: inherit;
}

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 68px;
  padding: 12px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(241, 250, 255, 0.84);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--amber);
  background: rgba(255, 255, 255, 0.72);
}

.brand-text {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 20px);
  color: #23475f;
  font-size: 14px;
}

.site-nav a {
  padding: 7px 0;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #0b75b7;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(260px, 0.48fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  min-height: 100svh;
  padding: 118px clamp(20px, 7vw, 92px) 72px;
  overflow: hidden;
}

.hero-visual,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-visual {
  z-index: 0;
  background: #eaf7ff;
}

.hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-grid {
  z-index: 1;
  background-image:
    linear-gradient(rgba(45, 159, 220, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 159, 220, 0.11) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.08));
}

.hero::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(90deg, rgba(239, 249, 255, 0.98) 0%, rgba(239, 249, 255, 0.78) 38%, rgba(239, 249, 255, 0.08) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(228, 244, 255, 0.7));
  content: "";
  pointer-events: none;
}

.hero-copy,
.mission-panel {
  position: relative;
  z-index: 3;
}

.hero-copy {
  width: min(820px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.32;
}

.hero-lead {
  width: min(760px, 100%);
  margin-bottom: 28px;
  color: #274e67;
  font-size: clamp(18px, 2.2vw, 25px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.primary-action,
.secondary-action,
.solution-card button,
.keyword-panel button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 7px;
  padding: 0 18px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.primary-action {
  color: #071310;
  background: var(--amber);
  font-weight: 800;
}

.secondary-action {
  color: #0b5f97;
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.62);
}

.primary-action:hover,
.secondary-action:hover,
.solution-card button:hover,
.keyword-panel button:hover {
  transform: translateY(-1px);
}

.hero-proof {
  display: grid;
  gap: 8px;
  width: min(760px, 100%);
  margin: 0;
  padding: 0;
  list-style: none;
  color: #3f657c;
}

.hero-proof li {
  position: relative;
  padding-left: 18px;
}

.hero-proof li::before {
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 7px;
  height: 2px;
  background: #1d9ada;
  content: "";
}

.mission-panel {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
  box-shadow: var(--shadow);
}

.mission-panel div {
  padding: 22px;
  background: rgba(255, 255, 255, 0.76);
  backdrop-filter: blur(12px);
}

.mission-panel span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.mission-panel strong {
  color: var(--text);
  font-size: 18px;
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border-block: 1px solid var(--line);
  background: var(--line);
}

.signal-band div {
  min-height: 132px;
  padding: 26px clamp(20px, 4vw, 42px);
  background: #f8fcff;
}

.signal-band strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green);
  font-size: 17px;
}

.signal-band span {
  color: var(--muted);
}

.section {
  scroll-margin-top: 76px;
  padding: 76px clamp(20px, 6vw, 86px);
}

.section-heading {
  width: min(860px, 100%);
  margin-bottom: 30px;
}

.section-heading.compact {
  width: min(720px, 100%);
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
}

.glass-card,
.zone-card,
.deck-panel,
.solution-card,
.update-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 16px 42px rgba(30, 120, 180, 0.14);
}

.profile-section,
.deck-section,
.commons-section {
  background: var(--bg-2);
}

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

.profile-card,
.commons-grid .glass-card {
  min-height: 250px;
  padding: 26px;
}

.profile-card span,
.commons-grid span,
.update-card span,
.solution-card span {
  display: block;
  margin-bottom: 9px;
  color: var(--amber);
  font-weight: 800;
}

.profile-card p,
.commons-grid p,
.deck-panel li,
.solution-card p,
.update-card p {
  color: var(--muted);
}

.map-section {
  background: #eef8ff;
}

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

.zone-card {
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(220, 241, 255, 0.82));
}

.zone-card:hover {
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(199, 233, 255, 0.92));
}

.zone-code {
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 22px;
  padding: 4px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.zone-card p {
  color: var(--muted);
}

.topic-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 18px;
  padding: 16px 0 0;
  border-top: 1px solid rgba(47, 151, 211, 0.18);
  list-style: none;
  color: #285a78;
  font-size: 14px;
}

.topic-list li {
  position: relative;
  padding-left: 16px;
}

.topic-list li::before {
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 6px;
  height: 2px;
  background: #1d9ada;
  content: "";
}

.module-route {
  margin-top: auto;
  padding: 10px 12px;
  border: 1px solid rgba(47, 151, 211, 0.2);
  border-radius: 7px;
  color: #0c5f95;
  background: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  font-weight: 700;
}

.deck-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.deck-panel {
  min-height: 300px;
  padding: 26px;
  background: var(--panel-2);
}

.deck-panel ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
}

.smart-lab-section {
  background: linear-gradient(180deg, #f7fcff, #e9f7ff);
}

.smart-lab-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  align-items: stretch;
}

.smart-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.smart-visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.smart-cases {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.smart-cases article {
  min-height: 250px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 14px 34px rgba(30, 120, 180, 0.12);
}

.smart-cases span {
  display: block;
  margin-bottom: 9px;
  color: var(--amber);
  font-weight: 800;
}

.smart-cases p {
  color: var(--muted);
}

.solution-section {
  background:
    linear-gradient(180deg, #e9f7ff, #f7fcff);
}

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

.solution-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
  padding: 24px;
}

.solution-card.hot {
  border-color: rgba(242, 184, 75, 0.45);
}

.solution-card p {
  flex: 1;
}

.solution-card button,
.keyword-panel button {
  width: 100%;
  color: #0c5f95;
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

.update-section {
  color: var(--dark-text);
  background: var(--paper);
}

.update-section .eyebrow,
.update-card span {
  color: #a76d1d;
}

.update-section .section-heading p {
  color: #5e6d68;
}

.update-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.update-card {
  overflow: hidden;
  background: #fffdf7;
  border-color: #d7d1c3;
}

.update-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #e4dfd2;
}

.update-card div {
  padding: 22px;
}

.update-card p {
  color: #5e6d68;
}

.wechat-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 42px;
  align-items: center;
  padding: 86px clamp(20px, 6vw, 86px);
  border-top: 1px solid var(--line);
  background: linear-gradient(135deg, #e8f7ff, #f9fdff);
}

.wechat-section p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
}

.keyword-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(88, 215, 173, 0.05);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding: 26px clamp(20px, 6vw, 86px);
  color: #526f82;
  border-top: 1px solid var(--line);
  background: #f6fbff;
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 50;
  min-width: 220px;
  max-width: min(420px, calc(100vw - 32px));
  padding: 12px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--text);
  background: rgba(247, 252, 255, 0.96);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

:focus-visible {
  outline: 3px solid rgba(242, 184, 75, 0.6);
  outline-offset: 3px;
}

@media (max-width: 1120px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

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

  .mission-panel {
    width: min(680px, 100%);
  }

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

@media (max-width: 860px) {
  .signal-band,
  .profile-grid,
  .smart-lab-grid,
  .solution-grid,
  .update-grid,
  .commons-grid,
  .wechat-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 150px;
  }
}

@media (max-width: 560px) {
  .site-header {
    position: absolute;
  }

  .brand-text {
    font-size: 15px;
  }

  .hero {
    min-height: 100svh;
    padding-top: 152px;
  }

  .hero-actions a {
    width: 100%;
  }

  .module-map,
  .deck-grid,
  .smart-cases {
    grid-template-columns: 1fr;
  }

  .smart-visual img {
    min-height: 320px;
  }

  .keyword-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 16px;
  }

  .section,
  .wechat-section {
    padding-block: 64px;
  }
}