:root {
  --bg: #070b12;
  --bg-2: #0b121e;
  --panel: rgba(13, 22, 36, 0.82);
  --panel-2: rgba(17, 29, 47, 0.78);
  --line: rgba(111, 190, 255, 0.18);
  --line-strong: rgba(61, 184, 242, 0.46);
  --text: #eef7ff;
  --muted: #91a6bb;
  --blue: #29aeea;
  --cyan: #63e4ff;
  --green: #57e39e;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 16% 4%, rgba(41, 174, 234, 0.2), transparent 32rem),
    radial-gradient(circle at 88% 12%, rgba(87, 227, 158, 0.12), transparent 30rem),
    linear-gradient(180deg, #07101a 0%, var(--bg) 48%, #05070c 100%);
}

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

.site-header,
.container,
.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 86px;
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  width: 188px;
  height: 56px;
  flex: 0 0 auto;
}

.brand img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter:
    drop-shadow(0 0 12px rgba(41, 174, 234, 0.46))
    drop-shadow(0 10px 20px rgba(0, 0, 0, 0.32));
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 13, 22, 0.66);
}

.nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: #c7d7e9;
  font-size: 14px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: #ffffff;
  background: rgba(41, 174, 234, 0.16);
}

.nav a.nav-api {
  padding-right: 18px;
}

.nav a.nav-api::after {
  content: "免费";
  position: absolute;
  top: -10px;
  right: -8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 17px;
  padding: 0 5px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  color: #ffffff;
  background: #ef2f3f;
  box-shadow: 0 8px 18px rgba(239, 47, 63, 0.32);
  font-size: 11px;
  font-weight: 900;
  line-height: 1;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 86px);
  padding: 50px 0 76px;
}

.page-hero {
  max-width: 860px;
  padding: 78px 0 42px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 1.06;
  letter-spacing: 0;
}

.page-hero h1 {
  font-size: clamp(38px, 5vw, 64px);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 14px;
  font-size: 23px;
  line-height: 1.28;
}

.lead,
.hero-text {
  max-width: 700px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 138px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #041018;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 16px 42px rgba(41, 174, 234, 0.28);
}

.button.secondary {
  border: 1px solid var(--line-strong);
  color: #d9efff;
  background: rgba(15, 26, 42, 0.62);
}

.hub-panel {
  position: relative;
  overflow: hidden;
  min-height: 570px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(24, 39, 61, 0.9), rgba(8, 14, 24, 0.9)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
  box-shadow: var(--shadow);
}

.hub-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(99, 228, 255, 0.22), transparent 36%, rgba(87, 227, 158, 0.1));
}

.panel-top,
.service-list,
.orbit {
  position: relative;
  z-index: 1;
}

.panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #a8bbcf;
  font-size: 13px;
}

.panel-top strong {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border: 1px solid rgba(87, 227, 158, 0.32);
  border-radius: 999px;
  color: var(--green);
  background: rgba(87, 227, 158, 0.1);
}

.orbit {
  height: 318px;
  margin: 34px 0 24px;
  border: 1px solid rgba(99, 228, 255, 0.16);
  border-radius: 8px;
  background: radial-gradient(circle at center, rgba(41, 174, 234, 0.22), transparent 15rem);
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  inset: 52px;
  border: 1px dashed rgba(145, 164, 185, 0.22);
  border-radius: 999px;
}

.orbit::after {
  inset: 92px 72px;
}

.core,
.node {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.core {
  top: 50%;
  left: 50%;
  width: 126px;
  height: 126px;
  flex-direction: column;
  border: 1px solid rgba(99, 228, 255, 0.54);
  border-radius: 50%;
  background: rgba(6, 15, 26, 0.9);
  box-shadow: 0 0 46px rgba(41, 174, 234, 0.36);
  transform: translate(-50%, -50%);
}

.core span {
  font-size: 22px;
  font-weight: 900;
}

.core small {
  margin-top: 6px;
  color: var(--muted);
}

.node {
  width: 96px;
  height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: #eaf8ff;
  font-size: 14px;
  font-weight: 800;
  background: rgba(14, 27, 44, 0.94);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.24);
}

.node-tool {
  top: 46px;
  left: 44px;
}

.node-api {
  top: 54px;
  right: 42px;
}

.node-qr {
  right: 96px;
  bottom: 54px;
}

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

.service-list a {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 52px;
  padding: 0 14px;
  border: 1px solid rgba(145, 164, 185, 0.15);
  border-radius: 8px;
  background: rgba(6, 12, 21, 0.72);
}

.dot,
.status-row i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 16px rgba(87, 227, 158, 0.76);
}

.service-list strong {
  color: var(--cyan);
  font-size: 13px;
}

.seo-summary {
  display: grid;
  gap: 10px;
  margin: 0 0 34px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(12, 20, 33, 0.62);
}

.seo-summary strong {
  color: #ffffff;
  font-size: 18px;
}

.seo-summary p {
  max-width: 960px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.section {
  padding: 78px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 18px;
}

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

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

.card {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(18, 29, 45, 0.72), rgba(10, 18, 30, 0.94)),
    radial-gradient(circle at 30% 18%, rgba(41, 174, 234, 0.18), transparent 13rem);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.card .index {
  display: block;
  margin-bottom: 44px;
  color: rgba(99, 228, 255, 0.28);
  font-size: 52px;
  font-weight: 900;
  line-height: 1;
}

.card p,
.split p,
.contact-list p {
  color: var(--muted);
  line-height: 1.75;
}

.card strong {
  color: var(--cyan);
}

.product-card {
  display: flex;
  flex-direction: column;
}

.product-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
  padding-top: 22px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.product-link:hover {
  transform: translateY(-2px);
}

.product-link.muted {
  border: 1px solid var(--line-strong);
  color: #d9efff;
  background: rgba(15, 26, 42, 0.62);
}

.product-link.primary {
  color: #041018;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 12px 30px rgba(41, 174, 234, 0.22);
}

.article-card {
  min-height: 280px;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin-bottom: 42px;
  padding: 0 12px;
  border: 1px solid rgba(99, 228, 255, 0.28);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(41, 174, 234, 0.1);
  font-size: 13px;
  font-weight: 900;
}

.article {
  max-width: 880px;
  padding: 78px 0 86px;
}

.article h1 {
  font-size: clamp(36px, 5vw, 62px);
}

.article h2 {
  margin-top: 46px;
  font-size: clamp(24px, 3vw, 34px);
}

.article p,
.article li {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.article ul {
  display: grid;
  gap: 10px;
  margin: 0 0 24px;
  padding-left: 22px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1fr);
  gap: 44px;
  align-items: start;
}

.panel-list {
  display: grid;
  gap: 14px;
}

.panel-list div,
.contact-list div {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(12, 20, 33, 0.72);
}

.panel-list span,
.contact-list span {
  display: block;
  margin-bottom: 10px;
  color: #ffffff;
  font-weight: 900;
}

.status-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 44px 0 72px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(18, 31, 50, 0.82), rgba(8, 13, 22, 0.86));
}

.status-section h2 {
  margin-bottom: 0;
  font-size: clamp(24px, 3vw, 34px);
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.status-row span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid rgba(145, 164, 185, 0.16);
  border-radius: 999px;
  color: #cfe0f0;
  background: rgba(8, 14, 23, 0.72);
}

.detail-panel {
  display: grid;
  gap: 16px;
  margin-bottom: 70px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.detail-panel ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.75;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  display: block;
  margin-bottom: 8px;
  color: #ffffff;
}

.site-footer p {
  margin-bottom: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px 18px;
}

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

@media (max-width: 920px) {
  .site-header {
    height: auto;
    padding: 18px 0;
    align-items: flex-start;
    gap: 16px;
  }

  .nav {
    max-width: 68vw;
    flex-wrap: wrap;
    justify-content: flex-end;
    border-radius: 8px;
  }

  .hero,
  .split,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
    padding-top: 46px;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: 230px;
  }

  .status-section,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .status-row,
  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .site-header,
  .container,
  .site-footer {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    position: static;
    display: grid;
    gap: 14px;
    align-items: start;
  }

  .brand {
    width: 152px;
    height: 42px;
  }

  .nav {
    display: flex;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: visible;
    justify-content: flex-start;
    gap: 6px;
    padding: 8px;
    border-radius: 8px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    flex: 0 0 auto;
    min-height: 32px;
    padding: 0 11px;
    font-size: 13px;
    white-space: nowrap;
  }

  .nav a.nav-api {
    margin-top: 8px;
    padding-right: 16px;
  }

  .nav a.nav-api::after {
    top: -9px;
    right: -5px;
    min-width: 28px;
    height: 16px;
    font-size: 10px;
  }

  h1,
  .page-hero h1 {
    font-size: 36px;
  }

  .hero {
    gap: 32px;
  }

  .lead,
  .hero-text {
    font-size: 16px;
  }

  .hero-actions,
  .card-actions,
  .product-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hub-panel {
    min-height: auto;
    padding: 18px;
  }

  .orbit {
    height: 258px;
    margin: 26px 0 18px;
  }

  .core {
    width: 96px;
    height: 96px;
  }

  .core span {
    font-size: 20px;
  }

  .node {
    width: 82px;
    font-size: 13px;
  }

  .node-tool {
    top: 52px;
    left: 18px;
  }

  .node-api {
    top: 52px;
    right: 18px;
  }

  .node-qr {
    right: 48px;
    bottom: 42px;
  }

  .section {
    padding: 54px 0;
  }

  .status-section {
    padding: 24px;
  }
}