:root {
  --bg: #07111f;
  --panel: #0e1b2d;
  --panel-2: #13233a;
  --text: #edf6ff;
  --muted: #9db2c9;
  --line: rgba(255, 255, 255, 0.12);
  --cyan: #22d3ee;
  --blue: #3b82f6;
  --green: #35d07f;
  --amber: #ffb020;
  --red: #ff6b6b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, rgba(34, 211, 238, 0.16), transparent 32rem),
    radial-gradient(circle at 80% 8%, rgba(53, 208, 127, 0.12), transparent 28rem),
    var(--bg);
}

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

button {
  font: inherit;
}

button.btn,
button.contact-action {
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  padding: 0 28px;
  background: rgba(7, 17, 31, 0.84);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.header-inner {
  width: min(1220px, 100%);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
}

.brand img {
  width: 38px;
  height: 38px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--text);
}

.nav-cta {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 8px;
  color: #06101d !important;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  font-weight: 800;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.section,
.section-band {
  padding: 96px 28px;
}

.section-band {
  background: linear-gradient(180deg, rgba(14, 27, 45, 0.72), rgba(7, 17, 31, 0));
}

.hero {
  min-height: 86vh;
  padding-top: 42px;
  padding-bottom: 64px;
}

.hero-grid {
  width: min(1220px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  gap: 70px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(56px, 8vw, 112px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
  line-height: 1.35;
}

.hero-lead,
.section-head p,
.contact-panel p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.hero-lead {
  max-width: 760px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 34px 0 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 700;
}

.btn.primary {
  color: #06101d;
  border: 0;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.06);
}

.metrics {
  width: min(1220px, 100%);
  margin: 44px auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 12px;
}

.metrics div,
.service-card,
.plan-card,
.faq-item,
.modal-dialog {
  border: 1px solid var(--line);
  background: rgba(14, 27, 45, 0.78);
  box-shadow: var(--shadow);
}

.metrics div {
  min-height: 112px;
  padding: 22px;
  border-radius: 8px;
}

.metrics strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green);
  font-size: 28px;
}

.metrics span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.hero-visual {
  min-height: 560px;
  display: grid;
  place-items: center;
}

.orbit-board {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1;
  border: 1px solid rgba(34, 211, 238, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    rgba(12, 28, 49, 0.7);
  background-size: 34px 34px;
  overflow: hidden;
}

.orbit-board::before,
.orbit-board::after {
  content: "";
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(34, 211, 238, 0.28);
  border-radius: 50%;
}

.orbit-board::after {
  inset: 27%;
  border-color: rgba(53, 208, 127, 0.3);
}

.core,
.node {
  position: absolute;
  display: grid;
  place-items: center;
  text-align: center;
}

.core {
  inset: 35%;
  border-radius: 50%;
  padding: 20px;
  background: #07111f;
  border: 1px solid rgba(53, 208, 127, 0.52);
}

.core strong {
  font-size: 18px;
}

.core small {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.node {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.94), rgba(59, 130, 246, 0.94));
  color: #06101d;
  font-weight: 900;
}

.n1 { left: 12%; top: 17%; }
.n2 { right: 12%; top: 21%; background: linear-gradient(135deg, var(--green), var(--cyan)); }
.n3 { left: 18%; bottom: 16%; background: linear-gradient(135deg, var(--amber), var(--red)); }
.n4 { right: 16%; bottom: 12%; background: linear-gradient(135deg, #a3e635, var(--green)); }
.n5 { left: 50%; top: 5%; transform: translateX(-50%); background: linear-gradient(135deg, #f0abfc, var(--cyan)); }
.n6 { left: 50%; bottom: 4%; transform: translateX(-50%); background: linear-gradient(135deg, #a3e635, #22c55e); }

.section-head {
  width: min(1220px, 100%);
  max-width: 1040px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 32px;
}

.about-grid {
  width: min(1220px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(0, 1.1fr);
  gap: 54px;
  align-items: center;
}

.about-copy {
  max-width: 620px;
}

.about-copy h2 {
  max-width: 620px;
  font-size: clamp(34px, 3.8vw, 58px);
  line-height: 1.08;
}

.about-copy p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.about-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.about-points span {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #06101d;
  background: var(--green);
  font-weight: 800;
  font-size: 14px;
}

.about-media {
  display: grid;
  gap: 14px;
  align-self: center;
}

.about-photo {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(14, 27, 45, 0.78);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.about-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.about-photo figcaption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text);
  background: rgba(7, 17, 31, 0.78);
  backdrop-filter: blur(12px);
  font-weight: 800;
}

.about-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.about-gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(14, 27, 45, 0.78);
}

.service-grid,
.plan-grid,
.case-grid,
.trust-grid,
.insight-grid {
  width: min(1220px, 100%);
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card,
.plan-card,
.trust-card,
.insight-card {
  min-height: 244px;
  padding: 30px;
  border-radius: 8px;
}

.platform-grid {
  width: min(1220px, 100%);
  margin: 0 auto 26px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.platform-card {
  min-height: 152px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(14, 27, 45, 0.78);
  box-shadow: var(--shadow);
}

.platform-card strong {
  font-size: 22px;
}

.platform-card span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.platform-douyin strong { color: #38bdf8; }
.platform-xhs strong { color: #fb7185; }
.platform-video strong { color: #2dd4bf; }
.platform-xianyu strong { color: #fbbf24; }
.platform-gaode strong { color: #a3e635; }
.platform-geo strong { color: #c084fc; }

.trust-card,
.insight-card,
.identity-panel,
.team-panel {
  border: 1px solid var(--line);
  background: rgba(14, 27, 45, 0.78);
  box-shadow: var(--shadow);
}

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

.trust-card {
  min-height: 224px;
  padding: 26px;
}

.trust-card span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-bottom: 18px;
  padding: 0 10px;
  border-radius: 8px;
  color: #06101d;
  background: var(--green);
  font-weight: 900;
  font-size: 14px;
}

.trust-card p,
.insight-card p,
.team-head p,
.team-grid span,
.identity-panel dd {
  color: var(--muted);
  line-height: 1.8;
}

.identity-panel,
.team-panel {
  width: min(1220px, 100%);
  margin: 20px auto 0;
  padding: 30px;
  border-radius: 8px;
}

.identity-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.32fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.identity-panel dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.identity-panel div {
  min-width: 0;
}

.identity-panel dt {
  margin-bottom: 6px;
  color: var(--cyan);
  font-weight: 800;
  font-size: 14px;
}

.identity-panel dd {
  margin: 0;
}

.team-panel {
  display: grid;
  gap: 22px;
}

.team-head {
  max-width: 860px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.team-grid article {
  min-height: 130px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.team-grid strong,
.team-grid span {
  display: block;
}

.team-grid strong {
  margin-bottom: 10px;
  color: var(--text);
}

.service-card span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  border-radius: 8px;
  color: #06101d;
  background: var(--cyan);
  font-weight: 900;
}

.service-card:nth-child(2) span,
.service-card:nth-child(5) span {
  background: var(--green);
}

.service-card:nth-child(3) span {
  background: var(--amber);
}

.service-card:nth-child(4) span {
  background: var(--red);
}

.service-card p,
.plan-card p {
  color: var(--muted);
  line-height: 1.8;
}

.service-card ul {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  position: relative;
  padding-left: 16px;
  color: #c7d7e8;
  font-size: 14px;
  line-height: 1.6;
}

.service-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.service-card.accent {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.18), rgba(53, 208, 127, 0.14)), rgba(14, 27, 45, 0.88);
}

.filter-tabs {
  width: min(1220px, 100%);
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.filter-tabs button {
  flex: 0 1 auto;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
}

.filter-tabs button.active {
  color: #06101d;
  border-color: transparent;
  background: var(--green);
}

.plan-card {
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.plan-card.featured {
  position: relative;
  background:
    linear-gradient(135deg, rgba(34, 211, 238, 0.22), rgba(53, 208, 127, 0.16)),
    rgba(14, 27, 45, 0.9);
  border-color: rgba(53, 208, 127, 0.48);
}

.plan-card.is-hidden {
  display: none;
}

.tag {
  color: var(--cyan) !important;
  font-weight: 700;
  font-size: 13px;
}

.plan-card strong {
  display: block;
  margin-top: 22px;
  color: var(--amber);
  font-size: 24px;
}

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

.insight-card {
  min-height: 270px;
}

.case-card {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 210px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(14, 27, 45, 0.78);
  text-align: left;
  overflow: hidden;
  cursor: pointer;
}

.case-card span {
  color: var(--cyan);
  font-weight: 700;
  font-size: 13px;
}

.case-card strong {
  color: var(--green);
  line-height: 1.55;
}

.case-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.case-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.case-tabs {
  width: min(1220px, 100%);
  margin: 0 auto 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.case-tabs button {
  flex: 0 1 auto;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
}

.case-tabs button.active {
  color: #06101d;
  border-color: transparent;
  background: var(--green);
}

.faq-list {
  width: min(920px, 100%);
  margin-left: auto;
  margin-right: auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  width: 100%;
  padding: 22px;
  border-radius: 8px;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.faq-item span {
  display: block;
  font-weight: 800;
}

.faq-item p {
  display: none;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.faq-item.open p {
  display: block;
}

.contact-panel {
  width: min(1220px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.78fr);
  gap: 28px;
  align-items: center;
  padding: 42px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.16), rgba(255, 176, 32, 0.1)), var(--panel);
  border: 1px solid var(--line);
}

.contact-list {
  display: grid;
  gap: 12px;
}

.contact-list a,
.contact-list button,
.contact-list span {
  min-height: 46px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font: inherit;
  text-align: left;
  line-height: 1.5;
}

.contact-list button:hover,
.contact-list a:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-footer {
  padding: 28px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-identity {
  margin-top: 0;
  margin-bottom: 22px;
}

.footer-inner {
  width: min(1220px, 100%);
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.process-strip {
  width: min(1220px, 100%);
  margin: 22px auto 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
  overflow: hidden;
}

.process-strip div {
  min-height: 150px;
  padding: 24px;
  border-right: 1px solid var(--line);
}

.process-strip div:last-child {
  border-right: 0;
}

.process-strip span {
  display: block;
  margin-bottom: 16px;
  color: var(--cyan);
  font-weight: 900;
}

.process-strip strong {
  display: block;
  margin-bottom: 8px;
}

.process-strip p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.case-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.66);
}

.case-modal.open {
  display: grid;
}

.modal-dialog {
  position: relative;
  width: min(920px, 100%);
  max-height: min(86vh, 900px);
  overflow: auto;
  padding: 34px;
  border-radius: 8px;
}

.modal-dialog strong {
  display: block;
  margin: 12px 0 18px;
  color: var(--green);
  line-height: 1.6;
}

.modal-dialog p {
  color: var(--muted);
  line-height: 1.9;
}

.case-proof-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.case-proof-gallery figure {
  margin: 0;
  min-height: 180px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.case-proof-gallery img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: 320px;
  object-fit: contain;
  background: #07111f;
}

.empty-proof {
  grid-column: 1 / -1;
  margin: 0;
  padding: 16px;
  border: 1px dashed var(--line);
  border-radius: 8px;
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  z-index: 80;
  max-width: min(420px, calc(100vw - 40px));
  padding: 14px 18px;
  border: 1px solid rgba(53, 208, 127, 0.4);
  border-radius: 8px;
  color: #06101d;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: var(--shadow);
  font-weight: 800;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 18px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

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

@media (max-width: 980px) {
  .hero-grid,
  .about-grid,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .plan-grid,
  .case-grid,
  .platform-grid,
  .trust-grid,
  .insight-grid,
  .process-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .identity-panel {
    grid-template-columns: 1fr;
  }

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

  .process-strip div:nth-child(2),
  .process-strip div:nth-child(4) {
    border-right: 0;
  }

  .process-strip div {
    border-bottom: 1px solid var(--line);
  }

  .process-strip div:nth-child(5),
  .process-strip div:nth-child(6) {
    border-bottom: 0;
  }

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

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

@media (max-width: 720px) {
  .site-header {
    padding: 0 20px;
  }

  .menu-toggle {
    display: inline-grid;
    place-items: center;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #091524;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 14px;
  }

  .nav-cta {
    justify-content: center;
    margin-top: 8px;
  }

  .section,
  .section-band {
    padding: 64px 20px;
  }

  .hero {
    min-height: auto;
    padding-top: 34px;
    padding-bottom: 42px;
  }

  .hero-grid {
    gap: 34px;
  }

  .about-photo img {
    aspect-ratio: 4 / 3;
  }

  .about-photo figcaption {
    position: static;
    border-radius: 0;
    background: rgba(255, 255, 255, 0.06);
  }

  .about-gallery {
    grid-column: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: -18px;
  }

  h1 {
    font-size: 56px;
  }

  .hero-lead,
  .section-head p,
  .contact-panel p {
    font-size: 16px;
  }

  .service-grid,
  .plan-grid,
  .case-grid,
  .platform-grid,
  .trust-grid,
  .insight-grid,
  .metrics,
  .process-strip {
    grid-template-columns: 1fr;
  }

  .identity-panel dl,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .process-strip div,
  .process-strip div:nth-child(2),
  .process-strip div:nth-child(3) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .process-strip div:last-child {
    border-bottom: 0;
  }

  .orbit-board {
    width: 100%;
    max-width: 320px;
  }

  .node {
    width: 58px;
    height: 58px;
    font-size: 14px;
  }

  .core {
    inset: 32%;
  }

  .contact-panel {
    padding: 28px;
  }

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

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 18px 0;
  }
}