:root {
  --shell: 880px;
  --blue: #086fd6;
  --blue-bright: #1195ef;
  --navy: #0b2844;
  --muted: #60788d;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  background: #e9f2f8;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--navy);
  font-family: "Arial Narrow", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.page {
  min-height: 100svh;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  padding: clamp(28px, 5vw, 56px) clamp(18px, 4vw, 42px);
  background:
    linear-gradient(rgba(29, 104, 159, 0.065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 104, 159, 0.065) 1px, transparent 1px),
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(235, 245, 251, 0.95) 55%, rgba(219, 237, 247, 0.98));
  background-size: 32px 32px, 32px 32px, auto;
}

.page::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 50%, rgba(255, 255, 255, 0.34) 50% 50.2%, transparent 50.2%),
    linear-gradient(0deg, transparent 0 50%, rgba(255, 255, 255, 0.3) 50% 50.2%, transparent 50.2%);
}

.site-shell {
  width: min(100%, var(--shell));
  min-height: min(650px, calc(100svh - clamp(56px, 10vw, 112px)));
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(18px, 3.5vh, 28px);
}

.site-header {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 4px;
}

.brand-lockup {
  display: flex;
  align-items: flex-end;
  gap: 18px;
}

.brand-logo { display: block; width: 148px; height: auto; }

.brand-lockup > span,
.system-status,
.hero-code,
.hero-index,
.globe-meta,
.corner-label,
.contact-label {
  font-family: "Arial Narrow", Arial, sans-serif;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.brand-lockup > span {
  margin-bottom: 4px;
  color: #6b8193;
  font-size: 8px;
}

.system-status {
  display: flex;
  align-items: center;
  gap: 18px;
  color: #647b8e;
  font-size: 8px;
}

.online { display: flex; align-items: center; gap: 7px; color: #156cae; }

.online i {
  width: 6px;
  height: 6px;
  border: 1px solid #087fc6;
  border-radius: 50%;
  background: #28a9df;
  box-shadow: 0 0 0 3px rgba(25, 148, 210, 0.12);
}

.hero-card {
  min-height: 448px;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  align-items: stretch;
  border: 1px solid #9eb8ca;
  border-radius: 14px;
  background: rgba(251, 254, 255, 0.94);
  box-shadow:
    0 22px 44px rgba(38, 83, 115, 0.14),
    0 2px 0 rgba(255, 255, 255, 0.96) inset,
    0 -1px 0 rgba(96, 132, 158, 0.15) inset;
}

.hero-card::before {
  content: "";
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background: linear-gradient(90deg, #0562ba 0 17%, #2c9ce2 17% 25%, #c9d7e0 25% 76%, #fff 76% 79%, #88a9be 79% 100%);
  box-shadow: 0 1px 0 rgba(34, 88, 125, 0.32);
}

.hero-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 30px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #cadae5 10% 90%, transparent);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 58px 48px 52px 58px;
}

.hero-code {
  width: min(100%, 380px);
  margin-bottom: 42px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #52748e;
  font-size: 8px;
}

.hero-code i { height: 1px; flex: 1; position: relative; background: #b6cbd9; }

.hero-code i::after {
  content: "";
  width: 5px;
  height: 5px;
  position: absolute;
  top: -2px;
  right: 0;
  border-radius: 50%;
  background: #2188cf;
}

.eyebrow {
  margin: 0 0 16px;
  color: #1a75b8;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

h1 {
  margin: 0;
  color: var(--navy);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(48px, 6.6vw, 64px);
  font-weight: 760;
  line-height: 1.12;
  letter-spacing: -0.065em;
}

.title-line {
  width: max-content;
  max-width: 100%;
  display: block;
  opacity: 0;
  filter: blur(7px);
  transform: translateY(14px);
  clip-path: inset(0 100% 0 0);
  animation: title-in 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.title-line-two {
  background: linear-gradient(95deg, #075fb7 0%, #0589df 52%, #53b9eb 100%);
  color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
  animation-delay: 0.13s;
}

.title-slash {
  margin-left: 0.1em;
  color: #8fc8e7;
  font-weight: 300;
  -webkit-text-fill-color: #8fc8e7;
}

.hero-text {
  max-width: 410px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: 0.055em;
  opacity: 0;
  animation: text-in 0.55s ease-out 0.56s forwards;
}

.hero-index {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 15px;
  color: #8a9dac;
  font-size: 7px;
}

.hero-index span + span::before { content: "/"; margin-right: 15px; color: #52a1d0; }

.globe-stage {
  position: relative;
  z-index: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 54px 26px 48px;
  border-left: 1px solid #b8ccda;
  background:
    linear-gradient(rgba(30, 102, 153, 0.065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 102, 153, 0.065) 1px, transparent 1px),
    linear-gradient(145deg, #edf5f9 0%, #dcebf4 100%);
  background-size: 20px 20px, 20px 20px, auto;
}

.globe-stage::before,
.globe-stage::after { content: ""; position: absolute; pointer-events: none; }

.globe-stage::before {
  width: 260px;
  height: 1px;
  top: 50%;
  left: 0;
  background: linear-gradient(90deg, transparent, rgba(9, 103, 174, 0.38), transparent);
}

.globe-stage::after {
  width: 1px;
  height: 100%;
  top: 0;
  left: 50%;
  background: linear-gradient(transparent, rgba(9, 103, 174, 0.25), transparent);
}

.globe-frame {
  width: 206px;
  height: 206px;
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(22, 108, 169, 0.22);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.42), 0 0 0 9px rgba(22, 108, 169, 0.12);
}

.globe-frame::before,
.globe-frame::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }

.globe-frame::before {
  width: 226px;
  height: 82px;
  border: 1px solid rgba(15, 104, 169, 0.28);
  transform: rotate(-17deg);
}

.globe-frame::after {
  width: 226px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  transform: rotate(21deg);
}

.globe {
  width: 172px;
  height: 172px;
  position: relative;
  overflow: hidden;
  border: 1px solid #075ca9;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 22%, rgba(255, 255, 255, 0.88) 0 3%, rgba(255, 255, 255, 0.28) 4% 14%, transparent 31%),
    radial-gradient(circle at 38% 34%, #41b4eb 0%, #1585cf 44%, #07529e 73%, #04396f 100%);
  box-shadow:
    inset -18px -14px 28px rgba(1, 31, 77, 0.34),
    inset 12px 8px 18px rgba(255, 255, 255, 0.18),
    0 16px 26px rgba(15, 78, 124, 0.26);
}

.globe::before,
.globe::after {
  content: "";
  position: absolute;
  inset: 18px -10px;
  border: 1px solid rgba(221, 247, 255, 0.62);
  border-radius: 50%;
}

.globe::after { inset: -10px 18px; }

.globe-axis {
  position: absolute;
  z-index: 1;
  left: -10%;
  width: 120%;
  height: 54px;
  border: 1px solid rgba(226, 249, 255, 0.55);
  border-radius: 50%;
}

.globe-axis-one { top: 31px; }
.globe-axis-two { bottom: 31px; }

.globe-slash {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  color: rgba(255, 255, 255, 0.94);
  font: 200 112px/1 Arial, sans-serif;
  text-shadow: 0 3px 9px rgba(2, 43, 85, 0.32);
  transform: translate(-46%, -50%);
}

.node {
  width: 6px;
  height: 6px;
  position: absolute;
  z-index: 3;
  border: 1px solid rgba(255, 255, 255, 0.94);
  border-radius: 50%;
  background: #62d0f6;
  box-shadow: 0 0 0 3px rgba(179, 234, 255, 0.3);
}

.node-one { top: 38px; right: 37px; }
.node-two { left: 28px; bottom: 58px; }
.node-three { right: 47px; bottom: 31px; }

.globe-meta {
  position: relative;
  z-index: 2;
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  color: #507790;
  font-size: 8px;
}

.corner-label {
  position: absolute;
  z-index: 3;
  right: 16px;
  bottom: 12px;
  color: #7591a5;
  font-size: 7px;
}

.site-footer {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 4px max(2px, env(safe-area-inset-bottom));
}

.contact-area { display: flex; align-items: center; gap: 15px; }
.contact-label { color: #647f92; font-size: 8px; }
.contact-links { display: flex; gap: 8px; }

.contact-links a {
  width: 42px;
  height: 42px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid #a9c0d0;
  border-radius: 9px;
  background: linear-gradient(145deg, #fff 0%, #e8f0f5 100%);
  box-shadow: 0 4px 9px rgba(50, 88, 113, 0.1), inset 1px 1px 0 #fff, inset -1px -1px 0 rgba(82, 119, 144, 0.14);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.contact-links a::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 5px;
  right: 5px;
  height: 1px;
  background: rgba(255, 255, 255, 0.9);
}

.contact-links a:hover {
  border-color: #398cc3;
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(50, 88, 113, 0.16), inset 1px 1px 0 #fff;
}

.contact-links a:focus-visible,
.icp:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

.x-mark { width: 17px; height: 17px; object-fit: contain; }

.wecom-mark { width: 24px; height: 24px; display: block; overflow: hidden; }
.wecom-mark img { width: 96px; height: 24px; max-width: none; display: block; }

.icp {
  color: #718a9d;
  font-size: 9px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  transition: color 0.18s ease;
}

.icp:hover { color: var(--blue); }

@keyframes title-in {
  to { opacity: 1; filter: blur(0); transform: translateY(0); clip-path: inset(0 0 0 0); }
}

@keyframes text-in { to { opacity: 1; } }

@media (max-width: 720px) {
  .page { padding: 22px 18px; }
  .site-shell { min-height: calc(100svh - 44px); gap: 18px; }
  .brand-logo { width: 132px; }
  .brand-lockup > span, .system-status > span:first-child { display: none; }
  .hero-card { min-height: 0; grid-template-columns: 1fr; }
  .hero-copy { padding: 48px 30px 38px; }
  .hero-code { margin-bottom: 30px; }
  h1 { font-size: clamp(43px, 12vw, 58px); }
  .hero-index { margin-top: 32px; }

  .globe-stage {
    min-height: 138px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 20px 44px 24px 32px;
    border-top: 1px solid #b8ccda;
    border-left: 0;
  }

  .globe-frame { width: 104px; height: 104px; flex: 0 0 auto; }
  .globe-frame::before { width: 116px; height: 46px; }
  .globe-frame::after { width: 116px; height: 26px; }
  .globe { width: 86px; height: 86px; }
  .globe-slash { font-size: 58px; }
  .globe-axis { height: 28px; }
  .globe-axis-one { top: 15px; }
  .globe-axis-two { bottom: 15px; }
  .node { display: none; }

  .globe-meta {
    min-width: 120px;
    margin-top: 0;
    flex-direction: column;
    gap: 10px;
    text-align: right;
  }

  .corner-label { bottom: 10px; }
}

@media (max-width: 460px) {
  .hero-copy { padding-inline: 24px; }
  .hero-index { display: none; }
  .globe-stage { padding-inline: 30px; }
  .contact-label { display: none; }
  .icp { max-width: 112px; text-align: right; }
}

@media (prefers-reduced-motion: reduce) {
  .title-line,
  .hero-text {
    opacity: 1;
    filter: none;
    transform: none;
    clip-path: none;
    animation: none;
  }

  * { transition: none !important; }
}