/* PC-only styles. Do not import H5 rules here. */
/* PC template styles. This file is isolated from the other viewport package. */
:root {
  --ink: #171c2a;
  --muted: #626979;
  --blue: #3478ed;
  --blue-light: #edf5ff;
  --line: #e8ecf3;
  --page-bg-a: linear-gradient(180deg, #f8faff 0%, #ffffff 56%);
  --page-bg-b: linear-gradient(180deg, #f3f7fc 0%, #eef3f9 100%);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: #fff;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

html,
body {
  width: 100%;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 70% 26%, rgba(229, 240, 255, 0.58), transparent 24%),
    linear-gradient(180deg, #f8faff 0, #fff 38%);
  -webkit-tap-highlight-color: transparent;
}

.fullpage {
  display: block;
  width: 100%;
  height: auto;
  transform: none;
}

.screen {
  width: 100%;
  min-height: 100dvh;
  height: auto;
  box-sizing: border-box;
  overflow: visible;
}

@keyframes screen-in-left {
  0% {
    opacity: 0;
    transform: translateX(-56px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes screen-in-right {
  0% {
    opacity: 0;
    transform: translateX(56px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes screen-in-visual-left {
  0% {
    opacity: 0;
    transform: translateX(-40px) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes screen-in-visual-right {
  0% {
    opacity: 0;
    transform: translateX(40px) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

/* Opacity-only: Safari collapses flex children when transform is on the flex container. */
@keyframes screen-in-fade {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.screen.is-waiting .feature-stats {
  opacity: 0;
  transform: none;
}

.screen.is-waiting .product-visual,
.screen.is-waiting .free-motion,
.screen.is-waiting .scenes-stage,
.screen.is-waiting .nodes-map,
.screen.is-waiting .security-visual,
.screen.is-waiting .security-float-chip-mobile {
  opacity: 0;
  transform: translateX(-40px) scale(0.96);
}

.screen.is-animating.is-from-right .feature-stats,
.screen.is-animating.is-from-left .feature-stats {
  animation: screen-in-fade 1.55s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.screen.is-animating.is-from-right .product-visual,
.screen.is-animating.is-from-right .free-motion,
.screen.is-animating.is-from-right .scenes-stage,
.screen.is-animating.is-from-right .nodes-map,
.screen.is-animating.is-from-right .security-visual,
.screen.is-animating.is-from-right .security-float-chip-mobile {
  animation: screen-in-visual-left 1.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.screen.is-animating.is-from-left .product-visual,
.screen.is-animating.is-from-left .free-motion,
.screen.is-animating.is-from-left .scenes-stage,
.screen.is-animating.is-from-left .nodes-map,
.screen.is-animating.is-from-left .security-visual,
.screen.is-animating.is-from-left .security-float-chip-mobile {
  animation: screen-in-visual-right 1.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.screen.is-animating .hero-copy > *:nth-child(1) { animation-delay: 0s; }
.screen.is-animating .hero-copy > *:nth-child(2) { animation-delay: 0.08s; }
.screen.is-animating .hero-copy > *:nth-child(3) { animation-delay: 0.16s; }
.screen.is-animating .hero-copy > *:nth-child(4) { animation-delay: 0.24s; }
.screen.is-animating .hero-copy > *:nth-child(5) { animation-delay: 0.32s; }
.screen.is-animating .hero-copy > *:nth-child(6) { animation-delay: 0.4s; }
.screen.is-animating .hero-copy > *:nth-child(7) { animation-delay: 0.48s; }
.screen.is-animating .product-visual { animation-delay: 0.2s; }

.screen.is-animating .free-copy { animation-delay: 0s; }
.screen.is-animating .free-motion { animation-delay: 0.2s; }

.screen.is-animating .scenes-heading { animation-delay: 0s; }
.screen.is-animating .scenes-stage { animation-delay: 0.2s; }

.screen.is-animating .nodes-map { animation-delay: 0s; }
.screen.is-animating .nodes-copy { animation-delay: 0.2s; }

.screen.is-animating .security-visual { animation-delay: 0s; }
.screen.is-animating .security-copy { animation-delay: 0.2s; }
.screen.is-animating .security-float-chip-mobile { animation-delay: 0.32s; }

.screen.is-animating .devices-inner { animation-delay: 0s; }
.screen.is-animating .site-footer .footer-main { animation-delay: 0.28s; }

@media (prefers-reduced-motion: reduce) {
  .fullpage,
  html.desktop .fullpage,
  html.desktop .fullpage-track {
    transition: none;
  }

  .hero-shot-desktop,
  .hero-shot-phone,
  .scene-visual-frame {
    animation: none;
  }

  .security-orbit-ring,
  .security-satellites,
  .security-sat img {
    animation: none !important;
  }

  .security-sat {
    transform:
      translate(-50%, -50%)
      rotate(var(--angle))
      translateY(calc(var(--orbit-r) * -1))
      rotate(calc(var(--angle) * -1)) !important;
  }

  .free-step,
  .free-check,
  .free-meter-bar i,
  .free-meter-state b {
    animation: none !important;
  }

  .free-step,
  .free-check {
    opacity: 1 !important;
    transform: none !important;
  }

  .free-meter-bar i {
    width: 100% !important;
  }

  .free-meter-state .st4 {
    opacity: 1 !important;
  }

  .free-meter-state .st1,
  .free-meter-state .st2,
  .free-meter-state .st3 {
    opacity: 0 !important;
  }

  .feature-stats li:hover,
  .device-card:hover,
  .footer-contact-card:hover,
  .download-button:hover,
  .platform-button:hover {
    transform: none !important;
  }

  .download-button::after {
    display: none;
  }

  .screen.is-waiting .hero-copy > *,
  .screen.is-waiting .product-visual,
  .screen.is-waiting .free-copy,
  .screen.is-waiting .free-motion,
  .screen.is-waiting .scenes-heading,
  .screen.is-waiting .scenes-stage,
  .screen.is-waiting .nodes-map,
  .screen.is-waiting .nodes-copy,
  .screen.is-waiting .security-copy,
  .screen.is-waiting .security-visual,
  .screen.is-waiting .security-float-chip-mobile,
  .screen.is-waiting .devices-inner,
  .screen.is-waiting .site-footer .footer-main,
  .screen.is-pending .hero-copy > *,
  .screen.is-pending .feature-stats,
  .screen.is-pending .product-visual,
  .screen.is-pending .free-copy,
  .screen.is-pending .free-motion,
  .screen.is-pending .scenes-heading,
  .screen.is-pending .scenes-stage,
  .screen.is-pending .nodes-map,
  .screen.is-pending .nodes-copy,
  .screen.is-pending .security-copy,
  .screen.is-pending .security-visual,
  .screen.is-pending .security-float-chip-mobile,
  .screen.is-pending .devices-inner,
  .screen.is-pending .site-footer .footer-main,
  .screen.is-animating .hero-copy > *,
  .screen.is-animating .feature-stats,
  .screen.is-animating .product-visual,
  .screen.is-animating .free-copy,
  .screen.is-animating .free-motion,
  .screen.is-animating .scenes-heading,
  .screen.is-animating .scenes-stage,
  .screen.is-animating .nodes-map,
  .screen.is-animating .nodes-copy,
  .screen.is-animating .security-copy,
  .screen.is-animating .security-visual,
  .screen.is-animating .security-float-chip-mobile,
  .screen.is-animating .devices-inner,
  .screen.is-animating .site-footer .footer-main,
  .screen.is-leaving .hero-copy,
  .screen.is-leaving .feature-stats,
  .screen.is-leaving .product-visual,
  .screen.is-leaving .free-copy,
  .screen.is-leaving .free-motion,
  .screen.is-leaving .scenes-heading,
  .screen.is-leaving .scenes-stage,
  .screen.is-leaving .nodes-map,
  .screen.is-leaving .nodes-copy,
  .screen.is-leaving .security-copy,
  .screen.is-leaving .security-visual,
  .screen.is-leaving .security-float-chip-mobile,
  .screen.is-leaving .devices-inner,
  .screen.is-leaving .site-footer .footer-main {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }
}

button,
a {
  font: inherit;
  color: inherit;
  text-decoration: none;
  touch-action: manipulation;
  text-decoration: none;
}

a {
  color: inherit;
}

button {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  width: 100%;
  height: 64px;
  margin: 0;
  padding: 0 max(40px, calc((100% - 1440px) / 2));
  padding-top: env(safe-area-inset-top);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: #141820;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-sizing: border-box;
}

.header-left {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  gap: 10px;
  color: #fff;
  text-decoration: none;
}

/* 品牌 Logo 占位：放入 <img> 或 SVG 即可 */
.brand-logo-slot {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: transparent;
  overflow: hidden;
}

.brand-logo-slot > img,
.brand-logo-slot > svg {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1;
  color: #fff;
  text-transform: uppercase;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: inline-block;
  position: relative;
  border-radius: 50%;
  transform: none;
  background: linear-gradient(135deg, #5b8def, #3478ed);
  box-shadow: 0 4px 12px rgba(52, 120, 237, 0.35);
}

.brand-mark i {
  position: absolute;
  left: 8px;
  width: 12px;
  height: 3px;
  border-radius: 2px;
  background: #fff;
  transform: none;
}

.brand-mark i:first-child {
  top: 9px;
}

.brand-mark i:last-child {
  top: 15px;
  width: 8px;
}

.brand-mark.tiny {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  box-shadow: none;
  background: #171c2a;
}

.brand-mark.tiny i {
  left: 4px;
  width: 7px;
  height: 2px;
  background: #fff;
}

.brand-mark.tiny i:first-child {
  top: 4px;
}

.brand-mark.tiny i:last-child {
  top: 8px;
  width: 5px;
}

.header-divider {
  flex-shrink: 0;
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.28);
}

.site-nav {
  min-width: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}

.site-nav a {
  color: #ffffff;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover {
  color: #fff;
}

.site-nav {
  margin: 0;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 20px;
  color: #666;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
}

.site-nav a {
  color: inherit;
  text-decoration: none;
  transition: color 0.18s ease;
}

.site-nav a:hover {
  color: #333;
}

.language-switch {
  position: relative;
  flex-shrink: 0;
}

.language-trigger {
  height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.language-trigger:hover,
.language-switch.is-open .language-trigger {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
}

.language-trigger img {
  display: block;
  flex-shrink: 0;
  filter: brightness(0) invert(1);
  opacity: 0.88;
}

.language-trigger img:last-of-type {
  width: 12px;
  height: 12px;
  transition: transform 0.18s ease;
}

.language-switch.is-open .language-trigger img:last-of-type {
  transform: rotate(180deg);
}

/* 地球图标占位 */
.lang-globe-slot {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #f0f1f3;
  overflow: hidden;
}

.lang-globe-slot > img,
.lang-globe-slot > svg {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

/* 下拉箭头占位 */
.lang-chevron-slot {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #f0f1f3;
  overflow: hidden;
  transition: transform 0.18s ease;
}

.lang-chevron-slot > img,
.lang-chevron-slot > svg {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.language-switch.is-open .lang-chevron-slot {
  transform: rotate(180deg);
}

.language-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 70;
  min-width: 140px;
  padding: 6px;
  border-radius: 10px;
  background: #1a2130;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}

.language-menu[hidden] {
  display: none;
}

.language-menu button {
  width: 100%;
  display: block;
  padding: 10px 12px;
  border: 0;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.82);
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.language-menu button:hover,
.language-menu button[aria-selected="true"] {
  color: #fff;
  background: rgba(59, 130, 246, 0.22);
}

.hero {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 96px max(24px, calc((100% - 1440px) / 2)) 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(28px, 3.5vw, 64px);
  align-items: center;
  box-sizing: border-box;
  overflow: hidden;
  background: var(--page-bg-a);
}

.hero-copy {
  position: relative;
  z-index: 4;
  min-width: 0;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
}

.badge svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.badge-blue {
  color: #3b5bdb;
  background: #eef2ff;
  border-color: #d6dffb;
}

.badge-green {
  color: #2f9e6b;
  background: #eaf8f0;
  border-color: #cfeedd;
}

h1 {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: clamp(40px, 4.2vw, 58px);
  line-height: 1.14;
  letter-spacing: -1.6px;
  font-weight: 800;
  color: var(--ink);
}

.hero-title-line {
  display: block;
  color: var(--ink);
}

.hero-title-brand {
  display: block;
  color: var(--blue);
  letter-spacing: 0;
}

.hero-title-brand em {
  font-style: normal;
  color: #366dff;
  letter-spacing: 0;
}

h1 span:not(.hero-title-line):not(.hero-title-brand) {
  color: var(--blue);
}

.hero-lead {
  margin: 12px 0 0;
  color: var(--ink);
  font-size: clamp(20px, 1.8vw, 28px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.5px;
}

.subtitle {
  margin: 26px 0 18px;
  max-width: 34em;
  color: #5d6575;
  font-size: 16px;
  line-height: 1.75;
}

.feature-stats {
  margin: 36px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  position: relative;
  z-index: 2;
  transform: none !important;
  -webkit-transform: none !important;
}

.feature-stats li {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 12px;
  padding: 0 40px;
  position: relative;
}

.feature-stats li:first-child {
  padding-left: 0;
}

.feature-stats li:last-child {
  padding-right: 0;
}

.feature-stats li:not(:last-child)::after {
  content: "";
  width: 1px;
  height: 28px;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: #e5e7eb;
}

.feature-stats img,
.feature-stats svg {
  width: 32px;
  height: 32px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}

.feature-stats span {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  min-width: 0;
  line-height: 1.2;
}

.feature-stats strong {
  color: #1d2231;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.2px;
  line-height: 1.2;
  white-space: nowrap;
}

.feature-stats small {
  color: #6b7280;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.2;
  white-space: nowrap;
}

.downloads {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  max-width: 460px;
  width: 100%;
}

.downloads button {
  border: 0;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease, filter 0.18s ease;
}

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

.download-button {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  width: 100%;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 28px;
  color: #fff;
  background: linear-gradient(90deg, var(--Color-, #366DFF) 0%, var(--Color-, #CD36FF) 100%);
  font-size: 17px;
  font-weight: 600;
  border-radius: 36px;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(79, 70, 229, 0.22);
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.22s ease, filter 0.22s ease;
}

.download-button::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 32%, rgba(255, 255, 255, 0.34) 50%, transparent 68%);
  transform: translateX(-130%);
  pointer-events: none;
  z-index: 1;
  transition: transform 0.55s ease;
}

.download-button > * {
  position: relative;
  z-index: 2;
}

.download-button:active:not(.is-unavailable) {
  transform: translateY(0) scale(0.985);
  filter: brightness(0.98);
}

.download-button strong {
  font-weight: 800;
}

.download-button .icon-cloud,
.download-button img,
.download-button svg {
  width: 24px;
  height: 24px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
  /* 与按钮白字一致 */
  filter: brightness(0) invert(1);
}

.platform-row {
  display: grid;
  gap: 10px;
  width: 100%;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* 2 个或 4 个：两列（4 个自然变成 2 排 × 2 个） */
.platform-row:has(> :nth-child(2):last-child),
.platform-row:has(> :nth-child(4):last-child) {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* 仅 1 个时不拉满三列 */
.platform-row:has(> :only-child) {
  grid-template-columns: minmax(0, 1fr);
}

.platform-button {
  min-height: 46px;
  height: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
  border-radius: 12px;
  color: #4b5565;
  background: transparent;
  border: 1px solid #cfd6e4 !important;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  box-shadow: none;
  text-decoration: none;
  cursor: pointer;
  vertical-align: middle;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.platform-button:active:not(.is-unavailable) {
  transform: translateY(0) scale(0.98);
}

@media (hover: hover) and (pointer: fine) {
  .download-button:hover:not(.is-unavailable) {
    transform: translateY(-3px);
    filter: brightness(1.06);
    box-shadow: 0 16px 36px rgba(79, 70, 229, 0.38);
  }

  .download-button:hover:not(.is-unavailable)::after {
    transform: translateX(130%);
  }

  .platform-button:hover:not(.is-unavailable) {
    transform: translateY(-2px);
    background: #f8fafc;
    border-color: #b7c0d2 !important;
    color: #1f2937;
  }
}

.platform-button img,
.platform-button svg {
  width: 18px;
  height: 18px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
  align-self: center;
}

.platform-button > span {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.platform-button-text {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 2px;
  line-height: 1.15;
}

.platform-button-text strong {
  font-size: 14px;
  font-weight: 600;
  color: inherit;
  line-height: 1;
}

.platform-button-text small {
  font-size: 11px;
  font-weight: 500;
  color: #6b7280;
  line-height: 1.2;
}

.platform-button.is-unavailable,
.download-button.is-unavailable,
.device-card.is-unavailable {
  cursor: not-allowed;
  pointer-events: none;
  opacity: 0.92;
  user-select: none;
}

.platform-button.is-unavailable {
  background: transparent;
  color: #4b5565;
}

.download-button.is-unavailable {
  background: #eef1f6;
  color: #6b7280;
  box-shadow: none;
}

.download-button.is-unavailable img,
.download-button.is-unavailable svg {
  filter: none;
}

.device-card.is-unavailable {
  background: #f8fafc;
  box-shadow: none;
}

.device-card.is-unavailable .device-card-action {
  background: #e5e7eb;
  color: #6b7280;
}

.device-card.is-unavailable:hover {
  transform: none;
  box-shadow: none;
}

.download-tip {
  height: 20px;
  margin: 12px 0 0;
  color: #6f7888;
  font-size: 12px;
}


.product-visual {
  position: relative;
  width: 100%;
  /* Figma node 4840-2104 device group ~625:420 */
  aspect-ratio: 625 / 420;
  height: auto;
  margin-top: 0;
}

.product-visual-stage {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
}

.hero-shot {
  position: absolute;
  overflow: visible;
  line-height: 0;
}

.hero-shot > img {
  width: 100%;
  height: auto;
  display: block;
  transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Figma: desktop ~84.5% width @ left 15.5%; phone ~36% width @ left 0, nearly same height */
.hero-shot-desktop {
  left: 15.5%;
  top: 0;
  width: 84.5%;
  border-radius: 16px;
  animation: hero-shot-float 5.6s ease-in-out infinite;
  will-change: transform;
}

.hero-shot-phone {
  left: 0;
  top: 5%;
  width: 35.9%;
  z-index: 2;
  border-radius: 24px;
  animation: hero-shot-float-phone 4.8s ease-in-out infinite;
  animation-delay: 0.7s;
  will-change: transform;
}

@keyframes hero-shot-float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -6px, 0);
  }
}

@keyframes hero-shot-float-phone {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -8px, 0);
  }
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.48;
}

.glow-one {
  width: 280px;
  height: 180px;
  top: 50px;
  left: 60px;
  background: #dceaff;
}

.glow-two {
  width: 230px;
  height: 200px;
  right: 20px;
  bottom: 30px;
  background: #eef5ff;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 10;
  padding: 11px 18px;
  border-radius: 8px;
  color: white;
  background: rgba(23, 28, 42, 0.92);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 16px);
  transition: 0.25s ease;
}

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

.side-rail {
  position: fixed;
  right: 24px;
  bottom: 120px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.contact-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.side-fab {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid #e8ecf3;
  border-radius: 12px;
  color: #1f2937;
  background: #fff;
  box-shadow: 0 4px 16px rgba(67, 89, 128, 0.12);
  cursor: pointer;
  transition: color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
  text-decoration: none;
}

.side-fab-icon {
  width: 22px;
  height: 22px;
  display: block;
  object-fit: contain;
}

.side-fab:hover {
  box-shadow: 0 8px 20px rgba(67, 89, 128, 0.16);
  transform: translateY(-1px);
}

.side-fab[data-contact-type="wechat"]:hover { color: #07c160; }
.side-fab[data-contact-type="qq"]:hover { color: #12b7f5; }
.side-fab[data-contact-type="email"]:hover { color: #f59e0b; }
.side-fab[data-contact-type="telegram"]:hover { color: #2aabee; }

.back-top {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease, filter 0.18s ease;
}

.side-fab svg {
  width: 22px;
  height: 22px;
  display: block;
}

.side-fab:hover {
  color: #1f2937;
  box-shadow: 0 8px 20px rgba(67, 89, 128, 0.16);
  transform: translateY(-1px);
}

.back-top {
  /* inherits .side-fab; kept for JS selectors */
}

@media (max-width: 1280px) {
  .hero {
    gap: 24px;
  }

  .product-visual {
    width: 92%;
    justify-self: end;
  }

  .subtitle,
  .hero-lead {
    white-space: normal;
  }
}

@media (max-width: 1180px) {
  .site-header,
  .hero,
  .free-screen,
  .scenes,
  .nodes-screen,
  .security-screen {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    gap: 16px;
  }

  .product-visual {
    transform: scale(0.82);
    transform-origin: top right;
  }
}

.download-label-short {
  display: none;
}

.section-kicker {
  display: none;
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
}

.section-rule {
  display: none;
  width: 36px;
  height: 3px;
  margin: 16px 0 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #6366f1, #3b82f6);
}

/* H5 布局覆盖写在文件末尾，避免被后续桌面样式盖掉 */

.scenes {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 72px max(24px, calc((100% - 1440px) / 2)) 72px;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  color: #222;
  background: var(--page-bg-a);
  overflow: visible;
}

.scenes::before {
  display: none;
}

.scenes-inner {
  width: min(100%, 1280px);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.scenes-heading {
  text-align: center;
  margin-bottom: 16px;
}

.scenes-heading h2 {
  margin: 0;
  color: #1d2129;
  font-size: 32px;
  line-height: 1.3;
  letter-spacing: 0;
  font-weight: 700;
}

.scenes-heading h2 .scenes-title-accent {
  color: #3478ed;
  background: linear-gradient(90deg, #3478ed 0%, #6366f1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.scenes-desc {
  margin: 8px auto 0;
  max-width: 28em;
  color: #888;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.scenes-tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
  width: min(100%, 440px);
  margin: 0 auto 20px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(216, 224, 238, 0.95);
  box-shadow: 0 8px 20px rgba(28, 49, 92, 0.06);
  overflow: hidden;
}

.scenes-tab-thumb {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  width: calc((100% - 10px - 8px) / 3);
  height: 38px;
  transform: translate(5px, 5px);
  border-radius: 999px;
  background: linear-gradient(180deg, #5b8cff 0%, #4a72ff 100%);
  box-shadow: 0 8px 16px rgba(74, 114, 255, 0.24);
  pointer-events: none;
  will-change: transform, width;
}

.scenes-tabs button {
  position: relative;
  z-index: 1;
  min-width: 0;
  height: 38px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #666;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.scenes-tabs button[aria-selected="true"] {
  color: #fff;
  background: transparent;
  box-shadow: none;
}

@media (hover: hover) and (pointer: fine) {
  .scenes-tabs button:hover:not([aria-selected="true"]) {
    color: #333;
  }
}

.scenes-stage {
  position: relative;
  display: grid;
}

.scenes-stage::before {
  content: "";
  position: absolute;
  left: 16%;
  right: 16%;
  bottom: -12px;
  height: 32px;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(74, 114, 255, 0.12), transparent 70%);
  filter: blur(10px);
}

.scene-stage {
  grid-area: 1 / 1;
  width: 100%;
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(24px, 2.5vw, 40px);
  align-items: center;
  min-height: 480px;
  padding: 48px 52px;
  border-radius: 24px;
  background: #fff;
  border: 1px solid rgba(216, 224, 238, 0.95);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 8px 24px rgba(28, 49, 92, 0.06),
    0 28px 56px rgba(70, 90, 130, 0.12);
  overflow: visible;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(28px);
  transition:
    opacity 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.28s;
}

.scene-stage.is-active {
  z-index: 2;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
}

.scene-stage.is-from-left {
  animation: scene-slide-in-left 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.scene-stage.is-from-right {
  animation: scene-slide-in-right 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.scene-stage.is-leaving-left {
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-28px);
}

.scene-stage.is-leaving-right {
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  transform: translateX(28px);
}

@keyframes scene-slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-28px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes scene-slide-in-right {
  from {
    opacity: 0;
    transform: translateX(28px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scene-stage,
  .scenes-tab-thumb {
    transition: none;
    transform: none;
  }

  .scene-stage.is-from-left,
  .scene-stage.is-from-right {
    animation: none;
  }
}

.scene-copy {
  min-width: 0;
}

.scene-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  padding: 6px 12px 6px 10px;
  border-radius: 999px;
  color: #4a72ff;
  background: #eef2ff;
  font-size: 13px;
  font-weight: 700;
}

.scene-eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4a72ff;
}

.scene-copy h3 {
  margin: 0;
  color: #1a1a1a;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.35;
}

.scene-lead {
  margin: 8px 0 0;
  max-width: 28em;
  color: #666;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.scene-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 28px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid rgba(216, 224, 238, 0.95);
}

.scene-metrics li {
  padding: 0 16px 0 0;
}

.scene-metrics li + li {
  padding-left: 24px;
  border-left: 1px solid rgba(216, 224, 238, 0.95);
}

.scene-metrics strong {
  display: block;
  color: #4a72ff;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.1;
}

.scene-metrics strong i {
  margin-left: 2px;
  font-size: 0.5em;
  font-style: normal;
  font-weight: 700;
}

.scene-metrics span {
  display: block;
  margin-top: 8px;
  color: #888;
  font-size: 13px;
  font-weight: 400;
}

.scene-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 360px;
  perspective: 1200px;
  perspective-origin: right center;
  overflow: visible;
}

.scene-visual::before {
  content: "";
  position: absolute;
  width: 72%;
  height: 56%;
  right: 8%;
  bottom: 6%;
  border-radius: 32px;
  background: radial-gradient(circle, rgba(74, 114, 255, 0.12), transparent 68%);
  filter: blur(14px);
  z-index: 0;
}

.scene-visual-frame {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 5 / 4;
  background: transparent;
  border-radius: 0;
  overflow: visible;
  box-shadow: none;
  transform-origin: right center;
  transform: rotateY(-4deg) rotateX(1.2deg);
  transform-style: preserve-3d;
  animation: scene-visual-float 4.8s ease-in-out infinite;
}

.scene-mock {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

.scene-mock-browser {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  box-shadow:
    0 8px 18px rgba(28, 49, 92, 0.08),
    0 32px 64px rgba(70, 90, 130, 0.18);
}

.scene-mock-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 8px 12px;
  background: #eef1f6;
}

.scene-mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.scene-mock-dot.is-red { background: #ff5f57; }
.scene-mock-dot.is-yellow { background: #febc2e; }
.scene-mock-dot.is-green { background: #28c840; }

.scene-mock-url {
  flex: 1;
  margin-left: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: #fff;
  color: #8a93a7;
  font-size: 11px;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.scene-mock-body {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 18px 20px 22px;
}

.scene-mock-badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.scene-mock-body > .scene-mock-badge {
  position: absolute;
  top: 12px;
  right: 12px;
}

.scene-mock-player > .scene-mock-badge.is-red {
  position: absolute;
  top: var(--player-pad, 16px);
  left: var(--player-pad, 16px);
  z-index: 2;
}

.scene-mock-badge.is-green {
  color: #1f8f4a;
  background: #e8f8ee;
}

.scene-mock-app-head .scene-mock-badge.is-green {
  color: #1f8f4a;
  background: rgba(232, 248, 238, 0.92);
}

.scene-mock-badge.is-red {
  color: #fff;
  background: linear-gradient(90deg, #ff5f7a, #ff3d67);
}

.scene-mock-google {
  display: flex;
  align-items: center;
  gap: 1px;
  font-size: clamp(28px, 4.2vw, 38px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1;
}

.scene-mock-google .g1 { color: #4285f4; }
.scene-mock-google .g2 { color: #ea4335; }
.scene-mock-google .g3 { color: #fbbc05; }
.scene-mock-google .g4 { color: #4285f4; }
.scene-mock-google .g5 { color: #34a853; }
.scene-mock-google .g6 { color: #ea4335; }

.scene-mock-search {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  max-width: 92%;
  padding: 10px 16px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 4px 18px rgba(70, 90, 130, 0.12);
}

.scene-mock-search i {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%239aa3b5' d='M15.5 14h-.79l-.28-.27A6.471 6.471 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E")
    center / contain no-repeat;
}

.scene-mock-search span {
  color: #666;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.2;
}

.scene-mock-skeleton {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 92%;
}

.scene-mock-skeleton span {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: #edf0f5;
}

.scene-mock-skeleton span:nth-child(1) { width: 100%; }
.scene-mock-skeleton span:nth-child(2) { width: 88%; }
.scene-mock-skeleton span:nth-child(3) { width: 72%; }
.scene-mock-skeleton span:nth-child(4) { width: 56%; }

.scene-mock-player {
  --player-pad: 16px;
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  padding: var(--player-pad);
  box-sizing: border-box;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.22);
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 92, 138, 0.28), transparent 34%),
    linear-gradient(180deg, #1b2030 0%, #12151f 100%);
}

.scene-mock-play {
  position: relative;
  z-index: 1;
  width: 58px;
  height: 58px;
  margin: auto;
  flex: 0 0 auto;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}

.scene-mock-play::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 16px solid rgba(255, 255, 255, 0.92);
}

.scene-mock-player-foot {
  position: relative;
  z-index: 1;
  width: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  flex: 0 0 auto;
}

.scene-mock-player-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  margin: 0 0 8px;
  padding: 0;
  box-sizing: border-box;
  color: rgba(255, 255, 255, 0.72);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.2;
}

.scene-mock-player-meta em {
  color: #ff6f98;
  font-style: normal;
  font-weight: 700;
}

.scene-mock-progress {
  width: 100%;
  height: 4px;
  margin: 0 0 10px;
  padding: 0;
  box-sizing: border-box;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  overflow: hidden;
}

.scene-mock-progress i {
  display: block;
  width: 42%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff5f7a, #ff3d67);
}

.scene-mock-thumbs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.scene-mock-thumbs span {
  display: block;
  aspect-ratio: 16 / 10;
  border-radius: 8px;
}

.scene-mock-thumbs span:nth-child(1) { background: linear-gradient(135deg, #6f4a45, #9a675d); }
.scene-mock-thumbs span:nth-child(2) { background: linear-gradient(135deg, #355f89, #5d8ec0); }
.scene-mock-thumbs span:nth-child(3) { background: linear-gradient(135deg, #8f6b2d, #c89a45); }
.scene-mock-thumbs span:nth-child(4) { background: linear-gradient(135deg, #4f4568, #756a96); }

.scene-mock-phone {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  padding: 16px 14px;
  box-sizing: border-box;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.22);
  background: linear-gradient(180deg, #171b26 0%, #10131b 100%);
}

.scene-mock-app-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.scene-mock-app-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.scene-mock-app-brand i {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z'/%3E%3C/svg%3E")
    center / contain no-repeat;
}

.scene-mock-app-brand strong {
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.2;
}

.scene-mock-feed {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.scene-mock-feed li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.scene-mock-feed li > i {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #6366f1);
}

.scene-mock-feed li > div {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.scene-mock-feed li > div span {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

.scene-mock-feed li > div span:first-child { width: 58%; }
.scene-mock-feed li > div span:last-child { width: 82%; }

@keyframes scene-visual-float {
  0%,
  100% {
    transform: rotateY(-4deg) rotateX(1.2deg) translateY(0);
  }
  50% {
    transform: rotateY(-3deg) rotateX(0.8deg) translateY(-5px);
  }
}

@media (max-width: 1200px) {
  .scenes {
    padding-left: 32px;
    padding-right: 32px;
  }

  .scene-stage {
    padding: 40px 36px;
    gap: 32px;
    min-height: 440px;
  }

  .scene-visual-frame {
    max-width: 420px;
  }
}

@media (max-width: 980px) {
  .scenes {
    padding: 72px 24px 64px;
  }

  .scenes-heading {
    margin-bottom: 18px;
  }

  .scenes-tabs {
    width: min(100%, 540px);
  }

  .scene-stage {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 28px 22px;
  }

  .scene-visual {
    min-height: 0;
  }

  .scene-visual-frame {
    max-width: 460px;
    margin: 0 auto;
    animation: scene-visual-float 4.8s ease-in-out infinite;
  }
}

@media (max-height: 820px) {
  .scenes-heading h2 {
    font-size: 32px;
  }

  .scenes-heading {
    margin-bottom: 16px;
  }

  .product-visual {
    width: 90%;
    justify-self: end;
  }
}



.free-screen {
  --free-blue: #3478ed;
  position: relative;
  width: 100%;
  margin: 0;
  padding: 80px max(24px, calc((100% - 1440px) / 2)) 80px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(40px, 4.5vw, 72px);
  align-items: center;
  align-content: center;
  box-sizing: border-box;
  overflow: hidden;
  background: var(--page-bg-b);
}

.free-screen::before,
.free-screen::after {
  display: none;
}

.free-copy {
  position: relative;
  z-index: 4;
  min-width: 0;
  max-width: 38em;
}

.free-copy h2 {
  margin: 0;
  color: #1d2129;
  font-size: 32px;
  line-height: 1.28;
  letter-spacing: 0;
  font-weight: 700;
}

.free-copy h2 .free-title-accent {
  color: var(--free-blue);
  background: linear-gradient(90deg, #3478ed 0%, #6366f1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.free-copy > p {
  margin: 8px 0 0;
  max-width: none;
  color: #666;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.free-download {
  position: relative;
  margin-top: 36px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 28px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0) 42%),
    linear-gradient(90deg, #4aa3ff 0%, #4d6ef7 42%, #7c3aed 100%);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.45) inset,
    0 -2px 0 rgba(40, 30, 110, 0.22) inset,
    0 10px 22px rgba(79, 70, 229, 0.34),
    0 2px 0 rgba(55, 40, 140, 0.18);
  transition: filter 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.free-download:hover {
  filter: brightness(1.06);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.5) inset,
    0 -2px 0 rgba(40, 30, 110, 0.2) inset,
    0 14px 28px rgba(79, 70, 229, 0.42),
    0 2px 0 rgba(55, 40, 140, 0.16);
  transform: translateY(-2px);
}

.free-download:active {
  transform: translateY(0);
  filter: brightness(0.98);
}

.free-download .icon-cloud {
  width: 20px;
  height: 20px;
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 1px rgba(30, 20, 80, 0.25));
}

.free-download > img {
  width: 18px;
  height: 18px;
  display: block;
  flex-shrink: 0;
}

.free-motion {
  position: relative;
  z-index: 2;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.free-motion > .glow {
  z-index: 0;
  pointer-events: none;
}

.free-stage {
  position: relative;
  z-index: 1;
  width: min(100%, 500px);
  display: grid;
  gap: 12px;
}

.free-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  width: 100%;
  display: grid;
  gap: 12px;
}

.free-step {
  position: relative;
  width: 100%;
  min-height: 88px;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  column-gap: 14px;
  padding: 16px 20px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid #e8ecf3;
  box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  opacity: 0.38;
  transform: scale(0.98);
  animation: free-step-s1 5s ease-in-out infinite;
}

.free-step.s1 {
  animation-name: free-step-s1;
}

.free-step.s2 {
  animation-name: free-step-s2;
}

.free-step.s3 {
  animation-name: free-step-s3;
}

.free-step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: #3b5bdb;
  background: #eef2ff;
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.02em;
}

.free-step-body {
  min-width: 0;
}

.free-step-body strong {
  display: block;
  color: #1d2129;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0;
}

.free-step-body p {
  margin: 8px 0 0;
  color: #888;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
}

.free-check {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  box-sizing: border-box;
  color: #fff;
  background: linear-gradient(135deg, #6b8cff, #4a72ff);
  box-shadow: 0 4px 10px rgba(74, 114, 255, 0.28);
}

.free-check svg {
  display: block;
  width: 12px;
  height: 12px;
  fill: #fff;
}

.free-meter {
  margin-top: 2px;
  padding: 12px 16px;
  border-radius: 16px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid #e8ecf3;
  box-shadow: 0 12px 28px rgba(67, 89, 128, 0.08);
}

.free-meter > span,
.free-meter-state b {
  font-size: 13px;
  font-weight: 700;
}

.free-meter > span {
  color: #626979;
  white-space: nowrap;
}

.free-meter-state {
  position: relative;
  display: inline-grid;
  justify-items: end;
  min-width: 3.5em;
  margin: 0;
  font-style: normal;
}

.free-meter-state b {
  grid-area: 1 / 1;
  color: #3b5bdb;
  opacity: 0;
  animation: free-meter-state 5s ease-in-out infinite;
}

.free-meter-state .st1 {
  animation-name: free-meter-state-1;
}

.free-meter-state .st2 {
  animation-name: free-meter-state-2;
}

.free-meter-state .st3 {
  animation-name: free-meter-state-3;
}

.free-meter-state .st4 {
  color: #2f9e6b;
  animation-name: free-meter-state-4;
}

.free-meter-bar {
  height: 8px;
  border-radius: 999px;
  background: #edf2f7;
  overflow: hidden;
}

.free-meter-bar i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #3b82f6, #6366f1 55%, #7c3aed);
  animation: free-meter-fill 5s ease-in-out infinite;
}

@keyframes free-step-s1 {
  0%,
  8% {
    opacity: 0.38;
    transform: scale(0.98);
    box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  }
  12%,
  30% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 18px 40px rgba(59, 120, 237, 0.16);
  }
  34%,
  100% {
    opacity: 0.55;
    transform: scale(1);
    box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  }
}

@keyframes free-step-s2 {
  0%,
  32% {
    opacity: 0.38;
    transform: scale(0.98);
    box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  }
  36%,
  58% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 18px 40px rgba(59, 120, 237, 0.16);
  }
  62%,
  100% {
    opacity: 0.55;
    transform: scale(1);
    box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  }
}

@keyframes free-step-s3 {
  0%,
  64% {
    opacity: 0.38;
    transform: scale(0.98);
    box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  }
  68%,
  88% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 18px 40px rgba(59, 120, 237, 0.16);
  }
  92%,
  100% {
    opacity: 0.55;
    transform: scale(1);
    box-shadow: 0 14px 34px rgba(67, 89, 128, 0.1);
  }
}

@keyframes free-meter-fill {
  0% {
    width: 8%;
  }
  30% {
    width: 42%;
  }
  60% {
    width: 74%;
  }
  88%,
  100% {
    width: 100%;
  }
}

@keyframes free-meter-state-1 {
  0%,
  28% {
    opacity: 1;
  }
  32%,
  100% {
    opacity: 0;
  }
}

@keyframes free-meter-state-2 {
  0%,
  30% {
    opacity: 0;
  }
  34%,
  58% {
    opacity: 1;
  }
  62%,
  100% {
    opacity: 0;
  }
}

@keyframes free-meter-state-3 {
  0%,
  60% {
    opacity: 0;
  }
  64%,
  84% {
    opacity: 1;
  }
  88%,
  100% {
    opacity: 0;
  }
}

@keyframes free-meter-state-4 {
  0%,
  86% {
    opacity: 0;
  }
  90%,
  100% {
    opacity: 1;
  }
}


.nodes-screen {
  --nodes-blue: #4a72ff;
  position: relative;
  width: 100%;
  margin: 0;
  padding: 80px max(24px, calc((100% - 1440px) / 2)) 80px;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(40px, 4.5vw, 72px);
  align-items: center;
  align-content: center;
  box-sizing: border-box;
  overflow: hidden;
  isolation: isolate;
  background: var(--page-bg-b);
}

.nodes-screen::before,
.nodes-screen::after {
  display: none;
}

.nodes-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.nodes-copy h2 {
  margin: 0;
  color: #1d2129;
  font-size: 32px;
  line-height: 1.28;
  letter-spacing: 0;
  font-weight: 700;
}

.nodes-copy h2 .nodes-title-accent {
  color: #3478ed;
  background: linear-gradient(90deg, #3478ed 0%, #6366f1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nodes-copy > p {
  margin: 8px 0 0;
  max-width: 32em;
  color: #666;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.nodes-stats {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  max-width: none;
}

.nodes-stats li {
  box-sizing: border-box;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  width: auto;
  min-height: 64px;
  padding: 14px 18px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid #e8ecf3;
  box-shadow: 0 12px 28px rgba(67, 89, 128, 0.08);
  text-align: left;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nodes-stats li:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(67, 89, 128, 0.12);
}

.nodes-stat-dot {
  position: relative;
  width: 10px;
  height: 10px;
  flex: 0 0 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4a72ff, #7c3aed);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.14);
}

.nodes-stat-dot::after {
  content: "";
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 1.5px solid rgba(99, 102, 241, 0.38);
  animation: nodes-stat-pulse 2.2s ease-out infinite;
}

.nodes-stats li:nth-child(2) .nodes-stat-dot::after { animation-delay: 0.35s; }
.nodes-stats li:nth-child(3) .nodes-stat-dot::after { animation-delay: 0.7s; }
.nodes-stats li:nth-child(4) .nodes-stat-dot::after { animation-delay: 1.05s; }

.nodes-stats strong {
  color: #3478ed;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.2;
}

.nodes-stats span {
  color: #1d2129;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
}

@keyframes nodes-stat-pulse {
  0% {
    transform: scale(0.72);
    opacity: 0.9;
  }
  70% {
    transform: scale(1.55);
    opacity: 0;
  }
  100% {
    transform: scale(1.55);
    opacity: 0;
  }
}

.nodes-map {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 1600 / 960;
  align-self: center;
  background: transparent;
  overflow: visible;
}

.nodes-map::before {
  content: "";
  position: absolute;
  inset: 8% 4% 2% 6%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(74, 114, 255, 0.12), transparent 68%);
  filter: blur(18px);
  pointer-events: none;
  z-index: 0;
}

.nodes-map-dots {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: radial-gradient(#b8c6db 1.35px, transparent 1.45px);
  background-size: 6px 6px;
  background-position: center;
  opacity: 0.9;
  -webkit-mask-image: url("map-mask.png");
  mask-image: url("map-mask.png");
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  pointer-events: none;
}

.nodes-pins {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  /* 坐标层整体右下偏移，点阵地图底图不动 */
  transform: translate(3%, 11%);
}

.nodes-pin {
  position: absolute;
  left: var(--x);
  top: var(--y);
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translate(-50%, -50%);
  animation: nodes-pin-bob 3.2s ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  pointer-events: auto;
  cursor: default;
}

.nodes-pin-label {
  position: relative;
  /* z-index: 2; */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  padding: 7px 14px;
  border-radius: 999px;
  color: #fff;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  background: linear-gradient(90deg, #4a72ff 0%, #7c3aed 52%, #c026d3 100%);
  box-shadow: 0 10px 22px rgba(99, 70, 229, 0.28);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.nodes-pin-label::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -5px;
  width: 10px;
  height: 10px;
  transform: translateX(-50%) rotate(45deg);
  border-radius: 2px;
  background: linear-gradient(135deg, #6d5ef0 0%, #a855f7 100%);
  z-index: -1;
}

.nodes-pin-dot {
  position: relative;
  z-index: 1;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #5b8cff;
  border: 2px solid #fff;
  box-shadow: 0 0 0 0 rgba(91, 140, 255, 0.45);
  animation: nodes-pin-pulse 2.4s ease-out infinite;
  animation-delay: var(--delay, 0s);
}

.nodes-pin:hover .nodes-pin-label {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 14px 28px rgba(99, 70, 229, 0.36);
}

@keyframes nodes-pin-bob {
  0%,
  100% {
    transform: translate(-50%, -50%);
  }
  50% {
    transform: translate(-50%, calc(-50% - 8px));
  }
}

@keyframes nodes-pin-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(91, 140, 255, 0.45);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(91, 140, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(91, 140, 255, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nodes-pin,
  .nodes-pin-dot,
  .nodes-stat-dot::after {
    animation: none !important;
  }
}


@media (max-width: 980px) {
  .nodes-screen {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .nodes-copy {
    max-width: none;
    text-align: center;
  }

  .nodes-copy > p {
    margin-left: auto;
    margin-right: auto;
  }

  .nodes-stats {
    margin-left: auto;
    margin-right: auto;
  }
}

.tech-panel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 84px max(24px, calc((100% - 1100px) / 2)) 48px;
  box-sizing: border-box;
  overflow: hidden;
  color: #e8eefc;
  background:
    radial-gradient(circle at 78% 22%, rgba(124, 58, 237, 0.22), transparent 22%),
    radial-gradient(circle at 86% 78%, rgba(59, 130, 246, 0.2), transparent 24%),
    linear-gradient(160deg, #070b16 0%, #0d1428 48%, #10182e 100%);
}

.tech-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 150, 220, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 150, 220, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  transform: perspective(600px) rotateX(58deg) translateY(-8%);
  transform-origin: center top;
  opacity: 0.45;
  pointer-events: none;
}

.tech-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.orb-a {
  width: 160px;
  height: 160px;
  top: 12%;
  right: 10%;
  background: radial-gradient(circle at 35% 30%, #c4b5fd, #7c3aed 48%, transparent 70%);
  opacity: 0.55;
  animation: orb-float 6s ease-in-out infinite;
}

.orb-b {
  width: 90px;
  height: 90px;
  right: 18%;
  bottom: 18%;
  background: radial-gradient(circle at 35% 30%, #93c5fd, #3b82f6 50%, transparent 70%);
  opacity: 0.45;
  animation: orb-float 5s ease-in-out infinite reverse;
}

.ring-stack {
  position: absolute;
  right: 6%;
  bottom: 10%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px solid rgba(99, 102, 241, 0.35);
  box-shadow:
    0 0 0 18px rgba(59, 130, 246, 0.08),
    0 0 0 42px rgba(124, 58, 237, 0.06),
    inset 0 0 40px rgba(99, 102, 241, 0.18);
  opacity: 0.7;
}

.ring-stack::before,
.ring-stack::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, #a5b4fc, transparent 70%);
}

.ring-stack::before {
  width: 14px;
  height: 14px;
  top: 18%;
  left: 12%;
}

.ring-stack::after {
  width: 10px;
  height: 10px;
  right: 20%;
  bottom: 22%;
  background: radial-gradient(circle, #7dd3fc, transparent 70%);
}

.tech-inner {
  position: relative;
  z-index: 1;
  width: min(100%, 1080px);
  text-align: center;
}

.tech-inner h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(30px, 4.2vw, 52px);
  line-height: 1.22;
  letter-spacing: -1.2px;
  font-weight: 800;
}

.tech-inner h2 span {
  background: linear-gradient(90deg, #a78bfa, #60a5fa 55%, #38bdf8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tech-inner > p,
.tech-copy > p {
  margin: 16px 0 0;
  max-width: 34em;
  color: #9aa6bf;
  font-size: 16px;
  line-height: 1.7;
}

.tech-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px 56px;
  text-align: left;
}

.tech-split-reverse .tech-copy {
  order: 2;
}

.tech-split-reverse .tech-icons {
  order: 1;
}

.tech-copy h2 {
  max-width: 12em;
}

.tech-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 22px;
  margin-top: 28px;
}

.tech-cta {
  min-width: 168px;
  height: 48px;
  padding: 0 28px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  background: linear-gradient(90deg, #6366f1, #8b5cf6 55%, #3b82f6);
  box-shadow: 0 12px 28px rgba(79, 70, 229, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tech-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(79, 70, 229, 0.42);
}

.tech-link {
  border: 0;
  padding: 0;
  background: none;
  color: #93a4c7;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s ease;
}

.tech-link:hover {
  color: #e8eefc;
}

.tech-icons-grid {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(96px, 1fr));
  justify-items: center;
  gap: 28px 36px;
}

.tech-nodes {
  width: min(100%, 980px);
}

.tech-nodes h2 {
  max-width: 16em;
  margin: 0 auto;
}

.tech-stats {
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tech-stats li {
  display: grid;
  gap: 6px;
  justify-items: center;
}

.tech-stats strong {
  color: #fff;
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}

.tech-stats span {
  color: #9aa6bf;
  font-size: 14px;
  font-weight: 600;
}

.tech-globe {
  margin: 28px auto 0;
  width: min(100%, 640px);
  overflow: hidden;
  mask-image: linear-gradient(180deg, #000 55%, transparent 98%);
}

.tech-globe-svg {
  display: block;
  width: 100%;
  height: auto;
}

.globe-nodes text {
  fill: rgba(226, 232, 240, 0.85);
  font-size: 12px;
  font-family: inherit;
}

.tech-line {
  display: block;
  width: 72px;
  height: 3px;
  margin: 26px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #8b5cf6, #3b82f6);
}

.tech-icons {
  margin: 42px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px 48px;
}

.tech-icons li {
  width: 96px;
  display: grid;
  justify-items: center;
  gap: 12px;
  color: #c4ccdc;
  font-size: 14px;
  font-weight: 600;
}

.tech-icons span {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #e8eefc;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.08), transparent 45%),
    linear-gradient(160deg, rgba(40, 52, 86, 0.95), rgba(22, 30, 52, 0.95));
  border: 1px solid rgba(148, 163, 220, 0.18);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.tech-icons svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.tech-icons path,
.tech-icons circle,
.tech-icons rect {
  fill: currentColor;
  stroke: none;
}

@keyframes orb-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}



@media (max-width: 680px) {
  .tech-inner h2 {
    font-size: clamp(26px, 7.5vw, 36px);
  }

  .tech-inner > p,
  .tech-copy > p {
    font-size: 14px;
  }

  .tech-stats {
    margin-top: 28px;
    gap: 12px;
  }

  .tech-stats strong {
    font-size: clamp(26px, 7vw, 34px);
  }

  .tech-stats span {
    font-size: 12px;
  }

  .globe-nodes text {
    font-size: 10px;
  }

  .tech-icons li {
    width: 78px;
    font-size: 12px;
  }

  .tech-icons span {
    width: 60px;
    height: 60px;
  }

  .tech-icons svg {
    width: 24px;
    height: 24px;
  }

  .ring-stack,
  .orb-b {
    display: none;
  }

}

.security-screen {
  position: relative;
  width: 100%;
  margin: 0;
  padding: 80px max(24px, calc((100% - 1440px) / 2)) 80px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 4.5vw, 72px);
  align-items: center;
  align-content: center;
  box-sizing: border-box;
  overflow: hidden;
  isolation: isolate;
  background: var(--page-bg-a);
}

.security-screen::before {
  display: none;
}

.security-visual {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 1;
  max-width: 440px;
  align-self: center;
  justify-self: center;
  display: grid;
  place-items: center;
  overflow: visible;
  background: transparent;
}

.security-visual::before {
  content: "";
  position: absolute;
  width: 58%;
  height: 58%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 114, 255, 0.18), transparent 68%);
  filter: blur(10px);
  z-index: 0;
}

.security-orbit {
  --orbit-r: 38cqi;
  --sat-size: 22%;
  position: relative;
  z-index: 1;
  width: min(400px, 100%);
  aspect-ratio: 1;
  container-type: size;
}

.security-orbit-ring {
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1.5px dashed rgba(74, 114, 255, 0.28);
  animation: security-spin 28s linear infinite;
  pointer-events: none;
}

.security-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 42%;
  aspect-ratio: 150 / 174;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.security-shield {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 18px 32px rgba(54, 109, 255, 0.22));
}

.security-lock {
  position: absolute;
  left: 50%;
  top: 54%;
  width: 28%;
  height: auto;
  transform: translate(-50%, -50%);
}

.security-satellites {
  position: absolute;
  inset: 0;
  z-index: 1;
  animation: security-spin 22s linear infinite;
}

.security-sat {
  --angle: calc(var(--i) * 90deg - 45deg);
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--sat-size);
  aspect-ratio: 1;
  transform:
    translate(-50%, -50%)
    rotate(var(--angle))
    translateY(calc(var(--orbit-r) * -1))
    rotate(calc(var(--angle) * -1));
}

.security-sat img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 10px 24px rgba(54, 109, 255, 0.12));
  animation: security-spin-reverse 22s linear infinite;
}

@keyframes security-spin {
  to { transform: rotate(360deg); }
}

@keyframes security-spin-reverse {
  to { transform: rotate(-360deg); }
}

.security-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
  width: 100%;
}

.security-copy h2 {
  margin: 0;
  color: #1d2129;
  font-size: 32px;
  line-height: 1.28;
  letter-spacing: 0;
  font-weight: 700;
}

.security-copy h2 .security-title-accent {
  color: #3478ed;
  background: linear-gradient(90deg, #3478ed 0%, #6366f1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.security-copy > p {
  margin: 8px 0 0;
  max-width: none;
  color: #666;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
}

.security-features {
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  width: 100%;
  max-width: 100%;
}

.security-features li {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-width: 0;
  min-height: 108px;
  padding: 18px 20px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid #e8ecf3;
  box-shadow: 0 14px 32px rgba(67, 89, 128, 0.1);
  text-align: left;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.security-features li:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(67, 89, 128, 0.14);
}

.security-features strong {
  color: #1d2231;
  font-size: 20px;
  font-style: normal;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0;
}

.security-features span {
  color: #888;
  font-size: 12px;
  font-style: normal;
  font-weight: 400;
  line-height: 1.5;
}

@media (max-width: 980px) {
  .security-screen {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .security-copy {
    max-width: none;
    text-align: center;
  }

  .security-copy > p {
    margin-left: auto;
    margin-right: auto;
  }

  .security-features {
    margin-left: auto;
    margin-right: auto;
    text-align: left;
    gap: 12px;
  }
}

.closing-screen {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  padding: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 12%, rgba(80, 120, 200, 0.22), transparent 42%),
    linear-gradient(180deg, #12182a 0%, #0f1218 100%);
}

.closing-screen .devices {
  flex: 1 1 auto;
  min-height: 0;
  padding: 56px max(40px, calc((100% - 1440px) / 2)) 40px;
}

.closing-screen .site-footer {
  flex: 0 0 auto;
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0;
}

.devices {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  overflow: hidden;
  color: #e8eef8;
  background: transparent;
}

.devices-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.devices-shape {
  position: absolute;
  border-radius: 28px;
  opacity: 0.45;
}

.devices-shape.s1 {
  width: 420px;
  height: 260px;
  top: 8%;
  left: -8%;
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.22), rgba(255, 255, 255, 0));
  transform: rotate(-18deg);
}

.devices-shape.s2 {
  width: 380px;
  height: 240px;
  right: -6%;
  bottom: 18%;
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(255, 255, 255, 0));
  transform: rotate(16deg);
}

.devices-shape.s3 {
  width: 280px;
  height: 180px;
  left: 38%;
  bottom: -4%;
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.14), rgba(255, 255, 255, 0));
  transform: rotate(-8deg);
}

.devices-inner {
  position: relative;
  z-index: 1;
  width: min(100%, 1080px);
  text-align: center;
}

.devices-title {
  margin: 0;
  color: #fff;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.3;
}

.device-cards {
  margin: 32px auto 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: nowrap;
  align-items: stretch;
  justify-content: center;
  gap: 16px;
  width: 100%;
}

.device-cards li {
  list-style: none;
  flex: 0 0 210px;
  width: 210px;
  max-width: 210px;
}

.device-card {
  width: 100%;
  aspect-ratio: 1 / 1;
  min-height: 0;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 22px 14px 18px;
  border: 1px solid #eceff3;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(28, 39, 64, 0.05);
  color: #222;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.device-card:hover {
  transform: translateY(-3px);
  border-color: #dde3ee;
  box-shadow: 0 10px 24px rgba(28, 39, 64, 0.08);
}

.device-card > img,
.device-card > svg {
  width: 42px;
  height: 42px;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}

.device-card-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.device-card-icon > img,
.device-card-icon > svg {
  width: 42px;
  height: 42px;
  display: block;
  object-fit: contain;
}

.device-card strong {
  margin-top: 12px;
  color: #222;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
}

.device-card small {
  margin-top: 6px;
  color: #999;
  font-size: 11px;
  font-weight: 400;
  line-height: 1.4;
  white-space: nowrap;
}

.device-card-action {
  margin-top: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 84px;
  height: 28px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(74, 114, 255, 0.1);
  color: #4a72ff;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease;
}

@media (hover: hover) and (pointer: fine) {
  .device-card:hover .device-card-action {
    background: rgba(74, 114, 255, 0.16);
    color: #3b63f0;
  }
}

.device-card:active .device-card-action,
.device-card:focus-visible .device-card-action {
  background: rgba(74, 114, 255, 0.16);
  color: #3b63f0;
}

.device-card.is-unavailable:hover .device-card-action,
.device-card.is-unavailable:active .device-card-action,
.device-card.is-unavailable:focus-visible .device-card-action {
  background: #f3f4f6;
  color: #555;
}

@media (max-width: 1280px) {
  .device-cards {
    gap: 14px;
  }

  .device-cards li {
    flex-basis: 188px;
    width: 188px;
    max-width: 188px;
  }
}

@media (max-width: 1100px) {
  .device-cards {
    gap: 12px;
  }

  .device-cards li {
    flex-basis: 168px;
    width: 168px;
    max-width: 168px;
  }

  .device-card {
    padding: 20px 10px 16px;
  }

  .device-card strong {
    font-size: 18px;
  }
}

@media (max-width: 720px) {
  .device-cards {
    gap: 10px;
  }

  .device-card {
    min-height: 220px;
    padding: 22px 8px 18px;
  }

  .device-card-icon,
  .device-card > img,
  .device-card > svg {
    width: 32px;
    height: 32px;
  }

  .device-card strong {
    margin-top: 14px;
    font-size: 16px;
  }

  .device-card-action {
    min-width: 0;
    width: 100%;
    padding: 0 8px;
    font-size: 12px;
  }
}

.site-footer {
  position: relative;
  z-index: 2;
  padding: 24px max(40px, calc((100% - 1440px) / 2)) 20px;
  color: rgba(255, 255, 255, 0.72);
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-sizing: border-box;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 24px 56px;
  align-items: stretch;
  width: 100%;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-width: 0;
  min-height: 100%;
}

.footer-brand strong {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-transform: uppercase;
}

.footer-brand p {
  margin: 0;
  max-width: 36em;
  color: rgba(226, 232, 240, 0.62);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
}

.footer-links {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 10px;
  min-width: 0;
  justify-self: center;
}

.footer-links h3,
.footer-contact-block h3 {
  margin: 0;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
}

.footer-links a {
  color: rgba(226, 232, 240, 0.78);
  text-decoration: none;
  font-size: 16px;
  line-height: 1.4;
  transition: color 0.18s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-contact-block {
  display: grid;
  align-content: start;
  gap: 10px;
  min-width: 0;
  justify-self: end;
  width: min(100%, 520px);
}

.footer-contact {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.footer-contact-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 10px 14px;
  border-radius: 12px;
  color: #fff;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.footer-contact-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(139, 183, 255, 0.35);
}

/* 联系图标占位：放入 <img> 或 SVG 即可 */
.footer-contact-icon {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.footer-contact-icon > img,
.footer-contact-icon > svg {
  width: 18px;
  height: 18px;
  display: block;
  object-fit: contain;
}

.footer-contact-text {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.footer-contact-card strong {
  display: block;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.1px;
  line-height: 1.3;
}

.footer-contact-card small {
  display: block;
  color: #888;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
}

.site-icp {
  margin: auto 0 0;
  padding-top: 12px;
  color: rgba(226, 232, 240, 0.42);
  font-size: 13px;
  line-height: 1.4;
}

@media (max-width: 980px) {
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-links,
  .footer-contact-block {
    justify-self: start;
    width: 100%;
  }

  .footer-contact {
    grid-template-columns: 1fr;
  }
}



@media (max-width: 680px) {
  .hero {
    padding-left: 18px !important;
    padding-right: 18px !important;
  }
}

@media (max-width: 1100px) and (min-width: 921px) {
  .site-nav {
    max-width: 18em;
  }
}