:root {
  --bg: #0b0d0c;
  --bg2: #111513;
  --panel: #151917;
  --panel2: #1c221f;
  --line: #2b332f;
  --line2: #3a453f;
  --text: #f4f1e8;
  --muted: #a7afa7;
  --soft: #d8d2c3;
  --accent: #8fdc7f;
  --accent2: #d7ff72;
  --warn: #ffcf5a;
  --wrap: min(1180px, calc(100% - 44px));
  --r: 8px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
}
body:before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.026) 1px, transparent 1px),
    radial-gradient(
      circle at 72% 8%,
      rgba(143, 220, 127, 0.16),
      transparent 25%
    ),
    linear-gradient(180deg, #0b0d0c, #111513 52%, #0b0d0c);
  background-size:
    58px 58px,
    58px 58px,
    auto,
    auto;
}
a {
  color: inherit;
  text-decoration: none;
}
.wrap {
  width: var(--wrap);
  margin: auto;
}
#header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 30px;
  padding: 0 max(22px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid transparent;
  transition: 0.24s;
}
#header.scrolled {
  background: rgba(11, 13, 12, 0.88);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}
.brand span:last-child {
  display: grid;
  line-height: 1;
}
.brand b {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand small {
  font:
    10px Consolas,
    monospace;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-top: 5px;
}
.mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line2);
  display: flex !important;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  padding: 7px;
  background: #121714;
}
.mark i {
  width: 4px;
  background: var(--accent);
  display: block;
}
.mark i:nth-child(1) {
  height: 8px;
}
.mark i:nth-child(2) {
  height: 18px;
}
.mark i:nth-child(3) {
  height: 13px;
}
#nav {
  display: flex;
  gap: 25px;
  margin: auto;
}
#nav a,
.head-actions > a:not(.btn) {
  font-size: 13px;
  color: #c4cabe;
  white-space: nowrap;
}
#nav a:hover,
#nav a.active,
.head-actions > a:hover {
  color: var(--text);
}
#nav a.active:after {
  content: "";
  display: block;
  width: 100%;
  height: 2px;
  background: var(--accent);
  margin: 8px auto -10px;
}
.head-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 20px;
  border-radius: var(--r);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #081008;
  font-weight: 800;
  font-size: 14px;
  white-space: nowrap;
  transition: 0.2s;
  box-shadow: 0 14px 34px rgba(143, 220, 127, 0.14);
}
.btn:hover {
  transform: translateY(-2px);
  background: #a7ec98;
  border-color: #a7ec98;
}
.btn:active {
  transform: scale(0.98);
}
.btn.ghost {
  background: transparent;
  border-color: var(--line2);
  color: var(--text);
  box-shadow: none;
}
.btn.ghost:hover {
  border-color: var(--accent);
  background: rgba(143, 220, 127, 0.08);
}
.btn.light {
  background: var(--text);
  color: #0c100e;
  border-color: var(--text);
}
.btn.small {
  min-height: 38px;
  padding: 0 15px;
  font-size: 13px;
}
#menu {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
}
#menu i {
  display: block;
  height: 1px;
  background: var(--text);
  margin: 7px;
}
.loading {
  min-height: 70vh;
  display: grid;
  place-content: center;
  text-align: center;
  color: var(--muted);
  font:
    12px Consolas,
    monospace;
}
.loading i {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: auto auto 15px;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.hero {
  position: relative;
  min-height: 840px;
  padding: 142px 0 54px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero-map {
  position: absolute;
  inset: 0;
  background: url("/assets/img/edge-network.svg") 62% 48% / cover no-repeat;
  opacity: 0.28;
  filter: grayscale(1) contrast(1.2);
}
.hero:after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      #0b0d0c 0%,
      rgba(11, 13, 12, 0.92) 38%,
      rgba(11, 13, 12, 0.5) 76%
    ),
    linear-gradient(0deg, #0b0d0c 0%, transparent 38%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 430px;
  gap: 54px;
  align-items: center;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--accent);
  font:
    11px Consolas,
    monospace;
  letter-spacing: 0.13em;
  margin: 0 0 24px;
}
.eyebrow:before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
.hero h1 {
  font-size: clamp(48px, 6.2vw, 82px);
  line-height: 1.03;
  margin: 0 0 24px;
  max-width: 9ch;
  letter-spacing: 0;
  font-weight: 900;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent2);
}
.hero-copy p {
  max-width: 610px;
  color: #c8cec5;
  line-height: 1.9;
  font-size: 17px;
}
.actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}
.live-card {
  justify-self: end;
  width: min(430px, 100%);
  border: 1px solid var(--line2);
  background: rgba(21, 25, 23, 0.9);
  backdrop-filter: blur(12px);
  border-radius: 10px;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.36);
  position: relative;
  overflow: hidden;
}
.live-card:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(143, 220, 127, 0.1),
    transparent 34%
  );
  pointer-events: none;
}
.live-card header {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  font:
    11px Consolas,
    monospace;
  color: #c1c8bf;
  text-transform: uppercase;
}
.live-card header i,
footer small i {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(143, 220, 127, 0.7);
  margin-right: 7px;
}
.live-main {
  padding: 26px 22px 20px;
}
.live-main strong {
  font:
    46px Consolas,
    monospace;
  color: var(--text);
}
.live-main span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
#chart {
  width: 100%;
  height: 108px;
}
.live-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.live-stats span {
  padding: 14px 15px;
  background: rgba(13, 16, 15, 0.75);
  border-right: 1px solid var(--line);
}
.live-stats span:last-child {
  border: 0;
}
.live-stats small {
  display: block;
  color: var(--muted);
  font-size: 10px;
}
.live-stats b {
  font:
    13px Consolas,
    monospace;
  color: var(--soft);
}
.stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 68px;
  border: 1px solid var(--line);
  background: rgba(17, 21, 19, 0.7);
  backdrop-filter: blur(8px);
}
.stats div {
  padding: 21px 24px;
  border-right: 1px solid var(--line);
}
.stats div:last-child {
  border-right: 0;
}
.stats strong {
  font:
    30px Consolas,
    monospace;
  color: var(--text);
}
.stats small {
  display: block;
  color: var(--muted);
  margin-top: 6px;
}
.section {
  padding: 105px 0;
}
.section-head {
  max-width: 760px;
  margin-bottom: 46px;
}
.section-head h2,
.page-title h1 {
  font-size: clamp(34px, 4.3vw, 56px);
  line-height: 1.12;
  margin-bottom: 18px;
  letter-spacing: 0;
  font-weight: 900;
  text-wrap: balance;
}
.section-head p,
.page-title p,
.network p {
  color: var(--muted);
  line-height: 1.8;
  max-width: 670px;
}
.product-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 18px;
}
.product-feature,
.product-card,
.solution-card,
.case,
.text-panel,
.package-card {
  border: 1px solid var(--line);
  background: linear-gradient(
    180deg,
    rgba(23, 28, 25, 0.96),
    rgba(15, 18, 16, 0.98)
  );
  border-radius: 10px;
  padding: 30px;
  position: relative;
  overflow: hidden;
}
.product-feature:after {
  content: "EDGE";
  position: absolute;
  right: -16px;
  bottom: -38px;
  font-size: 142px;
  font-weight: 900;
  color: rgba(244, 241, 232, 0.035);
}
.code {
  font:
    11px Consolas,
    monospace;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.product-feature h3 {
  font-size: 36px;
  margin: 80px 0 16px;
}
.product-card h3,
.solution-card h3,
.package-card h3 {
  font-size: 22px;
  margin: 26px 0 10px;
}
.product-card p,
.product-feature p,
.solution-card p,
.case p,
.text-panel p,
.package-card p,
.package-summary {
  color: var(--muted);
  line-height: 1.72;
}
.product-stack {
  display: grid;
  gap: 18px;
}
.product-card.compact {
  min-height: 206px;
}
.tags {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.tags span {
  font:
    10px Consolas,
    monospace;
  border: 1px solid var(--line);
  padding: 6px 8px;
  color: var(--soft);
  background: rgba(10, 13, 12, 0.7);
}
.metric {
  margin-top: 32px;
}
.metric strong {
  display: block;
  font:
    38px Consolas,
    monospace;
  color: var(--accent2);
}
.metric span {
  font-size: 12px;
  color: var(--muted);
}
.network {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, #101411, #0b0d0c);
}
.network-grid {
  display: grid;
  grid-template-columns: 0.76fr 1.24fr;
  gap: 70px;
  align-items: center;
}
.network h2 {
  font-size: clamp(34px, 4vw, 54px);
}
.regions {
  margin-top: 34px;
}
.regions div {
  display: grid;
  grid-template-columns: 75px 1fr auto;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}
.regions b {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
}
.regions span {
  color: var(--muted);
}
.map-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: #101411;
}
.map-frame img {
  width: 100%;
  min-height: 430px;
  object-fit: cover;
  filter: grayscale(1) contrast(1.12);
  opacity: 0.78;
}
.map-frame span {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(11, 13, 12, 0.9);
  border: 1px solid var(--line2);
  padding: 12px 15px;
  font:
    11px Consolas,
    monospace;
  letter-spacing: 0.08em;
}
.solution-grid,
.detail-grid,
.case-grid,
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.solution-grid {
  grid-template-columns: repeat(4, 1fr);
}
.solution-card {
  min-height: 240px;
}
.solution-card small,
.case small,
.package-card small {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
}
.solution-card h3 {
  margin-top: 70px;
}
.case strong {
  display: block;
  color: var(--accent2);
  font-size: 26px;
  margin: 50px 0 12px;
}
.case-space {
  margin-top: 45px;
}
.page-title {
  padding: 150px 0 74px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(120deg, #111513, #0b0d0c);
}
.news-list {
  border-top: 1px solid var(--line);
}
.news {
  display: grid;
  grid-template-columns: 135px 1fr 30px;
  gap: 35px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.news small {
  font:
    11px Consolas,
    monospace;
  color: var(--accent);
}
.news h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.news p {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}
.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
}
.about-grid h2 {
  font-size: 42px;
  line-height: 1.18;
}
.contact-info div {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.contact-info small {
  display: block;
  color: var(--muted);
  margin-bottom: 7px;
}
.contact-info b {
  font-size: 18px;
}
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-form label {
  display: grid;
  gap: 8px;
  font-size: 12px;
  color: #cbd0c8;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  border: 1px solid var(--line2);
  background: #121614;
  color: var(--text);
  padding: 13px;
  border-radius: 8px;
  outline: 0;
}
.contact-form textarea {
  min-height: 135px;
  resize: vertical;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
}
.form-honeypot {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  pointer-events: none;
}
.captcha-field {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 160px;
  gap: 10px;
}
.captcha-field input {
  min-width: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.captcha-field button {
  width: 160px;
  height: 48px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line2);
  border-radius: 8px;
  background: #121614;
  cursor: pointer;
}
.captcha-field img {
  display: block;
  width: 100%;
  height: 100%;
}
.contact-form label > small {
  color: var(--muted);
  font-size: 11px;
}
.wide {
  grid-column: 1/-1;
}
.success {
  color: var(--accent2);
}
.error,
.client-error {
  color: #ffb6a8;
}
.client-error {
  padding: 150px 0;
}
footer {
  border-top: 1px solid var(--line);
  background: #090b0a;
}
.foot-cta {
  min-height: 245px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
footer small {
  font:
    11px Consolas,
    monospace;
  color: var(--accent);
}
.foot-cta h2 {
  font-size: 40px;
  margin: 18px 0 0;
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 64px;
  padding: 55px 0;
}
.foot-grid > div {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.foot-grid a,
.foot-grid span,
.foot-grid p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
}
.foot-grid b {
  font-size: 12px;
  margin-bottom: 8px;
}
.wechat-footer img {
  width: 112px;
  height: 112px;
  padding: 5px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.wechat-footer[hidden] {
  display: none;
}
.copyright {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  color: #7d877f;
  font-size: 11px;
}
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.65s,
    transform 0.65s;
}
.reveal.show {
  opacity: 1;
  transform: none;
}
.feature-band {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: center;
  border: 1px solid var(--line);
  background: linear-gradient(
    135deg,
    rgba(28, 34, 31, 0.96),
    rgba(17, 21, 19, 0.98)
  );
  padding: 34px;
  border-radius: 10px;
  margin-bottom: 28px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.18);
}
.feature-band h2 {
  font-size: 34px;
  margin-bottom: 14px;
}
.feature-band p {
  color: var(--muted);
  line-height: 1.8;
}
.band-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.band-grid span {
  border: 1px solid var(--line);
  background: #111513;
  padding: 16px;
  text-align: center;
  font:
    12px Consolas,
    monospace;
  color: var(--soft);
}
.product-page-grid {
  margin-top: 26px;
}
.process-grid,
.network-cards,
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 42px;
}
.process-grid article,
.network-cards article,
.about-values article {
  border: 1px solid var(--line);
  background: linear-gradient(
    180deg,
    rgba(23, 28, 25, 0.96),
    rgba(15, 18, 16, 0.98)
  );
  padding: 26px;
  border-radius: 10px;
}
.process-grid b,
.network-cards small,
.about-values b {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
}
.process-grid h3,
.network-cards h3,
.about-values h3 {
  font-size: 21px;
  margin: 34px 0 12px;
}
.process-grid p,
.network-cards p,
.about-values p {
  color: var(--muted);
  line-height: 1.7;
}
.scenario-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 30px;
  border: 1px solid var(--line);
  background: linear-gradient(
    135deg,
    rgba(28, 34, 31, 0.96),
    rgba(17, 21, 19, 0.98)
  );
  border-radius: 10px;
  padding: 34px;
  margin-top: 44px;
}
.scenario-panel h2 {
  font-size: 34px;
  margin-bottom: 12px;
}
.scenario-panel p,
.scenario-panel li {
  color: var(--muted);
  line-height: 1.8;
}
.scenario-panel ul {
  margin: 0;
  padding-left: 20px;
}
.node-table {
  margin-top: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.node-table div {
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr;
}
.node-table div + div {
  border-top: 1px solid var(--line);
}
.node-table b,
.node-table span {
  padding: 17px 20px;
  border-right: 1px solid var(--line);
}
.node-table b:last-child,
.node-table span:last-child {
  border-right: 0;
}
.node-table b {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
  background: #111513;
}
.node-table span {
  color: var(--soft);
}
.news-feature {
  border: 1px solid var(--line);
  background: linear-gradient(
    135deg,
    rgba(28, 34, 31, 0.96),
    rgba(15, 18, 16, 0.98)
  );
  border-radius: 10px;
  padding: 38px;
  margin-bottom: 28px;
}
.news-feature small {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
}
.news-feature h2 {
  font-size: clamp(28px, 4vw, 48px);
  margin: 22px 0 14px;
}
.news-feature p {
  color: var(--muted);
  line-height: 1.8;
  max-width: 760px;
}
.about-values {
  margin-top: 0;
}
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}
.package-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  min-height: 430px;
}
.package-card.hot {
  border-color: var(--accent);
  box-shadow: 0 24px 70px rgba(143, 220, 127, 0.12);
}
.package-card.hot:after {
  content: "推荐";
  position: absolute;
  top: 18px;
  right: 18px;
  border: 1px solid var(--accent);
  color: #0b0d0c;
  background: var(--accent);
  font-size: 12px;
  font-weight: 800;
  padding: 5px 8px;
  border-radius: 4px;
}
.package-card:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(143, 220, 127, 0.08),
    transparent 34%
  );
  pointer-events: none;
}
.package-top {
  display: grid;
  gap: 12px;
  padding-right: 42px;
}
.package-top small {
  display: block;
  font:
    11px Consolas,
    monospace;
  color: var(--accent);
  margin-bottom: 8px;
}
.package-top h3 {
  font-size: 28px;
  margin: 0;
}
.package-top b {
  font:
    800 28px/1.1 Consolas,
    monospace;
  color: var(--text);
}
.package-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--soft);
  line-height: 1.8;
}
.package-card .btn {
  margin-top: auto;
}
.package-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 26px;
}
.package-notes article {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 24px;
  border-radius: 10px;
}
.package-notes small {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
}
.package-notes h2 {
  font-size: 24px;
  margin: 16px 0 10px;
}
.package-notes p {
  color: var(--muted);
  line-height: 1.8;
}
.form-divider {
  padding: 10px 0 4px;
  border-top: 1px solid var(--line);
  color: var(--accent);
  font:
    11px Consolas,
    monospace;
  letter-spacing: 0.08em;
}
.compact-auth {
  max-width: 430px;
  margin-left: auto;
}
.login-art small,
.login-box small {
  font:
    10px Consolas,
    monospace;
  color: var(--accent);
}
@media (max-width: 980px) {
  :root {
    --wrap: calc(100% - 48px);
  }
  #header {
    padding: 0 24px;
  }
  #nav {
    position: fixed;
    inset: 72px 0 auto;
    background: #0b0d0c;
    border-bottom: 1px solid var(--line);
    display: none;
    flex-direction: column;
    padding: 22px;
  }
  #nav.open {
    display: flex;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  #nav a {
    width: 100%;
    padding: 12px 0;
    font-size: 15px;
  }
  #menu {
    display: block;
  }
  .head-actions > a:not(.btn) {
    display: none;
  }
  .hero-inner,
  .product-layout,
  .network-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    min-height: auto;
    padding-bottom: 72px;
  }
  .hero-inner {
    gap: 42px;
  }
  .live-card {
    width: min(100%, 620px);
    justify-self: start;
  }
  .solution-grid,
  .detail-grid,
  .case-grid,
  .package-grid {
    grid-template-columns: 1fr 1fr;
  }
  .foot-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .foot-grid > div:first-child {
    grid-column: 1/-1;
  }
  .wechat-footer {
    align-items: start;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .feature-band,
  .scenario-panel,
  .package-notes {
    grid-template-columns: 1fr;
  }
  .band-grid,
  .process-grid,
  .network-cards,
  .about-values {
    grid-template-columns: 1fr 1fr;
  }
  .node-table div {
    grid-template-columns: 1fr;
  }
  .node-table b,
  .node-table span {
    border-right: 0;
    border-top: 1px solid var(--line);
  }
  .article-shell {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 36px;
  }
}
@media (max-width: 620px) {
  :root {
    --wrap: calc(100% - 30px);
  }
  #header {
    height: 64px;
    padding: 0 15px;
  }
  .head-actions .btn {
    display: none;
  }
  #nav {
    inset: 64px 0 auto;
    padding: 16px 20px 22px;
  }
  #nav a {
    padding: 11px 0;
  }
  .hero {
    padding-top: 105px;
    min-height: auto;
  }
  .hero h1 {
    font-size: clamp(38px, 12vw, 48px);
    max-width: 100%;
  }
  .hero-copy p {
    font-size: 15px;
    line-height: 1.75;
  }
  .actions {
    align-items: stretch;
    flex-direction: column;
  }
  .actions .btn {
    width: 100%;
    justify-content: center;
  }
  .live-card {
    min-height: 0;
  }
  .live-card header {
    align-items: flex-start;
    gap: 10px;
  }
  .live-main strong {
    font-size: 46px;
  }
  .live-stats {
    grid-template-columns: 1fr;
  }
  .stats {
    margin-top: 45px;
  }
  .stats div {
    padding: 17px 10px;
  }
  .section {
    padding: 64px 0;
  }
  .section-head h2,
  .about-grid h2 {
    font-size: clamp(30px, 9vw, 40px);
  }
  .page-title {
    padding: 118px 0 54px;
  }
  .page-title h1 {
    font-size: clamp(40px, 12vw, 58px);
  }
  .solution-grid,
  .detail-grid,
  .case-grid,
  .foot-grid,
  .package-grid,
  .package-notes,
  .process-grid,
  .network-cards,
  .about-values {
    grid-template-columns: 1fr;
  }
  .news {
    grid-template-columns: 1fr 24px;
    gap: 10px;
  }
  .news small {
    grid-column: 1/-1;
  }
  .news p {
    display: none;
  }
  .contact-form {
    grid-template-columns: 1fr;
  }
  .captcha-field {
    grid-template-columns: 1fr;
  }
  .captcha-field button {
    width: 160px;
  }
  .contact-info {
    display: grid;
    grid-template-columns: 1fr;
  }
  .contact-info b {
    overflow-wrap: anywhere;
  }
  .wide {
    grid-column: auto;
  }
  .foot-cta {
    min-height: 0;
    padding: 46px 0;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    gap: 25px;
  }
  .foot-cta h2 {
    font-size: 30px;
  }
  .foot-grid {
    padding: 44px 0;
    gap: 28px;
  }
  .wechat-footer img {
    width: 128px;
    height: 128px;
  }
  .copyright {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
  .package-card {
    min-height: auto;
  }
}
.article-page {
  padding: 132px 0 95px;
}
.article-hero {
  border-bottom: 1px solid var(--line);
  padding-bottom: 45px;
}
.article-back {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 13px;
}
.article-back:hover {
  color: var(--accent);
}
.article-hero small {
  font:
    12px Consolas,
    monospace;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.article-hero h1 {
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.05;
  max-width: 980px;
  margin: 22px 0 22px;
  text-wrap: balance;
}
.article-hero p {
  max-width: 760px;
  color: var(--muted);
  line-height: 1.9;
  font-size: 17px;
}
.article-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  gap: 70px;
  align-items: start;
  padding-top: 55px;
}
.article-shell aside {
  position: sticky;
  top: 96px;
  border-top: 2px solid var(--accent);
  padding-top: 18px;
  color: var(--muted);
  font-size: 12px;
}
.article-shell aside b {
  display: block;
  color: var(--accent);
  font:
    12px Consolas,
    monospace;
  margin-bottom: 10px;
}
.article-body {
  font-size: 17px;
  line-height: 1.95;
  color: #d6d8cf;
}
.article-body h2 {
  font-size: 32px;
  line-height: 1.25;
  margin: 44px 0 16px;
  color: var(--text);
}
.article-body h3 {
  font-size: 24px;
  margin: 34px 0 12px;
  color: var(--text);
}
.article-body p {
  margin: 0 0 22px;
  color: #d6d8cf;
}
.article-body a {
  color: var(--accent);
  border-bottom: 1px solid rgba(143, 220, 127, 0.45);
}
.article-body ul,
.article-body ol {
  margin: 0 0 24px;
  padding-left: 24px;
}
.article-body li {
  margin: 8px 0;
}
.article-body blockquote {
  margin: 32px 0;
  padding: 22px 24px;
  border-left: 3px solid var(--accent);
  background: rgba(143, 220, 127, 0.08);
  color: var(--soft);
}
.article-body code {
  font-family: Consolas, monospace;
  background: #111513;
  border: 1px solid var(--line);
  padding: 2px 5px;
  border-radius: 4px;
  color: var(--accent2);
}
.article-body pre {
  overflow: auto;
  background: #111513;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin: 28px 0;
}
.article-body pre code {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--soft);
}
.news-feature {
  display: block;
}
.news-feature b {
  display: inline-flex;
  margin-top: 12px;
  color: var(--accent);
  font-size: 13px;
}
.news b {
  font-size: 12px;
  color: var(--accent);
}
@media (max-width: 980px) {
  .article-shell {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .article-shell aside {
    position: static;
  }
  .article-page {
    padding-top: 105px;
  }
}
@media (max-width: 620px) {
  .article-page {
    padding: 100px 0 70px;
  }
  .article-hero {
    padding-bottom: 32px;
  }
  .article-back {
    margin-bottom: 24px;
  }
  .article-hero h1 {
    margin: 16px 0;
    font-size: clamp(36px, 10vw, 48px);
  }
  .article-hero p {
    font-size: 15px;
  }
  .article-body {
    font-size: 15px;
  }
  .article-body h2 {
    font-size: 26px;
  }
  .article-body h3 {
    font-size: 21px;
  }
  .article-body pre {
    max-width: calc(100vw - 30px);
    overflow-x: auto;
  }
}
@media (max-width: 420px) {
  :root {
    --wrap: calc(100% - 24px);
  }
  #header {
    padding: 0 12px;
  }
  .brand span {
    font-size: 14px;
  }
  .brand small {
    font-size: 7px;
  }
  .hero {
    padding-top: 92px;
  }
  .live-card {
    padding: 16px;
  }
  .stats {
    grid-template-columns: 1fr 1fr;
  }
  .stats div {
    min-width: 0;
  }
  .stats strong {
    font-size: 24px;
  }
  .panel,
  .product-card,
  .package-card,
  .solution-card {
    padding: 20px;
  }
  .captcha-field button {
    width: 100%;
  }
  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }
  .foot-grid > div:first-child,
  .wechat-footer {
    grid-column: 1/-1;
  }
}