:root {
  color: #1F2329;
  background: #fff;
  font-family:
    "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  min-width: 1200px;
  margin: 0;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
section[id] {
  scroll-margin-top: 70px;
}
.content {
  width: 1200px;
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  height: 70px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 1px 12px rgba(26, 80, 159, 0.035);
  backdrop-filter: blur(12px);
}
.header-inner {
  width: 1200px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
}
.brand {
  display: flex;
  align-items: center;
  flex: none;
}
.brand img {
  width: 136px;
  height: 42px;
  object-fit: contain;
}
.main-nav {
  display: flex;
  align-items: stretch;
  gap: 56px;
  height: 100%;
  margin-left: 208px;
}
.main-nav a {
  display: flex;
  align-items: center;
  position: relative;
  height: 100%;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.2s;
  color: #161822;
}
.main-nav a:hover,
.main-nav a.active {
  color: #0257FF;
}
/* .main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 22px;
  height: 3px;
  background: #0257FF;
  transform: translateX(-50%);
} */

.hero {
  height: max(500px, 26.04167vw);
  background: #e8f3ff url("./images/hero-background.jpg") center center / 100%
    100% no-repeat;
}
.hero-inner {
  height: 100%;
  display: flex;
  align-items: center;
}
.hero-copy {
  margin-top: -5px;
}
.hero-eyebrow {
  display: inline-block;
  padding: 7px 18px;
  border: 1px solid #5d749f;
  border-radius: 27px;
  color: #5D749F;
  background: rgba(255, 255, 255, 0.54);
  font-size: 18px;
  line-height: 1;
}
.hero h1 {
  margin-top: 24px;
  font-size: 64px;
  line-height: 1.35;
  font-weight: 800;
}
.hero-title-line {
  display: block;
  width: max-content;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
.hero-title-first {
  background-image: linear-gradient(
    105deg,
    #073991 0%,
    #0754cf 55%,
    #0876f5 100%
  );
}
.hero-title-second {
  background-image: linear-gradient(
    100deg,
    #0059dd 0%,
    #0868f5 55%,
    #1786ff 100%
  );
}
.hero p {
  margin-top: 40px;
  color: #5D749F;
  font-size: 30px;
  letter-spacing: 3px;
}

.solution-section {
  padding: 80px 0;
}
.section-intro {
  text-align: center;
}
.english-label {
  display: block;
  color: #BBBDBE;
  font-size: 30px;
  font-weight: 500;
  line-height: 36px;
}
.section-intro h2,
.about-content h2 {
  margin-top: 24px;
  font-size: 60px;
  line-height: 1;
  font-weight: 600;
}
.section-intro p {
  margin-top: 32px;
  color: #4D89FF;
  font-size: 18px;
  line-height: 1;
}
.solution-block {
  position: relative;
  padding: 120px 0 80px;
}
.solution-block::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: 0;
  left: -100px;
  border-bottom: 2px dashed #e5e9f1;
}
.architecture-block {
  padding-top: 105px;
}
.architecture-block .block-title {
  margin-bottom: 55px;
}
.advantage-block {
  padding-bottom: 0;
}
.advantage-block::after {
  display: none;
}
.block-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 72px;
  font-size: 40px;
  line-height: 1;
  font-weight: 600;
}
.block-title::before {
  content: "";
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  background: url("./images/section-marker.png") center / contain no-repeat;
}

.architecture-diagram {
  position: relative;
  height: 595px;
  padding-top: 15px;
}
.diagram-orbit {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}
.diagram-orbit > path {
  fill: none;
  stroke: #d8dee9;
  stroke-width: 2;
  stroke-dasharray: 3 6;
  stroke-linecap: round;
  marker-end: url(#orbit-arrowhead);
}
.architecture-note {
  position: relative;
  z-index: 2;
  width: 606px;
  height: 96px;
  margin: 0 auto;
  padding: 16px;
  border-left: 6px solid #3E7EFF;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0px 1px 7px 0px #dde3eb; 
}
.architecture-note strong {
  display: block;
  color: #3E7EFF;
  font-size: 24px;
  line-height: 32px;
}
.architecture-note span {
  display: block;
  margin-top: 12px;
  font-size: 20px;
  white-space: nowrap;
  line-height: 1;
}
.architecture-main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 260px 200px 280px 200px 260px;
  align-items: center;
  margin-top: 32px;
}
.architecture-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #F2F6FF;
  border: 1px solid #C2D6FF;
  border-radius: 16px;
}
.outer-node {
  width: 260px;
  height: 160px;
  transform: translateY(9px);
}
.outer-node strong {
  font-size: 28px;
  line-height: 1;
}
.outer-node span {
  width: 228px;
  margin-top: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid #DADDE4;
  color: #666666;
  font-size: 20px;
  line-height: 30px;
}
.outer-node small {
  margin-top: 12px;
  font-size: 20px;
}
.flow-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 200px;
  text-align: center;
}
.flow-connector span,
.flow-connector small {
  color: #232b39;
  font-size: 19px;
  line-height: 1.3;
}
.flow-arrow {
  display: block;
  width: 160px;
  height: 24px;
  background: linear-gradient(90deg,rgba(48,153,255,0.00), #3099ff 99%);
  clip-path: polygon(0 36%, 88% 36%, 88% 0, 100% 50%, 88% 100%, 88% 64%, 0 64%);
}
.flow-arrow-backward {
  transform: scaleX(-1);
}
.platform-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  color: #fff;
  text-align: center;
  background: linear-gradient(315deg,#47baff, #0257ff 95%);
}
.platform-node strong {
  font-size: 28px;
}
.platform-node span {
  margin-top: 16px;
  font-size: 20px;
  line-height: 30px;
  white-space: nowrap;
  color: #A9D2FF;
}
.platform-divider {
  width: 192px;
  height: 1px;
  margin-top: 15px;
  background: rgba(255, 255, 255, 0.5);
}
.platform-node small {
  margin-top: 17px;
  font-size: 20px;
  line-height: 28px;
}
.architecture-bottom {
  position: relative;
  z-index: 1;
  width: 380px;
  height: 140px;
  margin: 32px auto 0;
}
.architecture-bottom-heading {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 16px;
  width: 348px;
  padding-bottom: 17px;
  border-bottom: 1px solid #dce2ec;
}
.architecture-bottom strong {
  font-size: 28px;
  line-height: 1;
}
.architecture-bottom span {
  color: #666666;
  font-size: 20px;
}
.architecture-bottom small {
  margin-top: 12px;
  font-size: 20px;
}

.pain-block {
  padding-top: 73px;
}
.pain-layout {
  position: relative;
  height: 455px;
}
.pain-list {
  position: absolute;
  z-index: 1;
  top: 55px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 460px;
  height: 382px;
}
.pain-list-left {
  left: 0;
}
.pain-list-right {
  right: 0;
}
.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  min-height: 150px;
}
.pain-item > div {
  width: 344px;
  flex: none;
}
.pain-item img {
  width: 80px;
  height: 80px;
  flex: none;
  object-fit: contain;
  outline: 2px dashed #DADDE4;
  outline-offset: 5px;
  border-radius: 50%;
}
.pain-item h4 {
  color: #0257FF;
  font-size: 28px;
  line-height: 1;
}
.pain-item p {
  margin-top: 16px;
  color: #666;
  font-size: 20px;
  line-height: 30px;
}
.pain-list-left .pain-item {
  text-align: right;
}
.pain-list-right .pain-item {
  text-align: left;
}
.pain-center {
  position: absolute;
  top: 7px;
  left: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 440px;
  height: 440px;
}
.pain-ring {
  position: absolute;
  border: 2px dashed #DADDE4;
  border-radius: 50%;
}
.pain-ring-one {
  inset: 0;
}
.pain-ring-two {
  inset: 11px;
}
.pain-core {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 156px;
  height: 156px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(145deg, #0868ef, #43a8ff);
}
.pain-core::before {
  content: "";
  position: absolute;
  inset: -8px;
  border: 2px dashed #dadde4;
  border-radius: 50%;
  pointer-events: none;
}
.pain-core img {
  width: 56px;
  height: 56px;
}
.pain-core strong {
  margin-top: 5px;
  font-size: 28px;
}

.process-block {
  padding-top: 76px;
  padding-bottom: 105px;
}
.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 76px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.process-list li {
  position: relative;
  min-height: 340px;
  padding: 32px 24px;
  border-radius: 16px;
  background: #F2F6FF;
  box-sizing: border-box;
}
.process-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 48%;
  right: -66px;
  width: 60px;
  height: 24px;
  background: linear-gradient(90deg,rgba(48,153,255,0.00), #3099ff 99%);
  clip-path: polygon(0 37%, 72% 37%, 72% 0, 100% 50%, 72% 100%, 72% 63%, 0 63%);
}
.process-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  margin: 0 auto 32px;
  border-radius: 50%;
  color: #fff;
  font-size: 40px;
  font-weight: 600;
  background: linear-gradient(315deg,#47baff, #0257ff 95%);
}
.process-list h4 {
  text-align: center;
  font-size: 32px;
  line-height: 1;
}
.process-list p {
  margin-top: 32px;
  color: #666666;
  font-size: 24px;
  line-height: 40px;
}

.scenarios-block {
  padding-top: 30px;
  padding-bottom: 80px;
}
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 38px;
}
.scenario-card {
  position: relative;
  height: 460px;
  padding: 120px 30px 40px;
}
.scenario-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: #f3f6fc;
  clip-path: path("M 18 0 Q 0 -2 0 16 V 442 Q 0 460 18 460 H 267 Q 285 460 285 442 V 58 Q 285 43 268 40 L 18 0 Z");
}
.scenario-card img {
  position: absolute;
  z-index: 1;
  top: -35px;
  right: 32px;
  width: 120px;
  height: 120px;
  object-fit: contain;
}
.scenario-card h4 {
  position: relative;
  font-size: 32px;
  line-height: 1;
  white-space: nowrap;
}
.scenario-card strong {
  position: relative;
  display: block;
  margin-top: 20px;
  color: #4D89FF;
  font-size: 26px;
  font-weight: normal;
}
.scenario-card p {
  position: relative;
  margin-top: 24px;
  color: #666666;
  font-size: 24px;
  line-height: 40px;
}

.advantage-block {
  padding-top: 76px;
}
.advantage-grid {
  display: grid;
  grid-template-columns: 306px repeat(2, 427px);
  grid-template-rows: repeat(2, 272px);
  gap: 20px;
}
.advantage-feature {
  position: relative;
  grid-row: span 2;
  overflow: hidden;
  padding: 48px 32px;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(313deg,#47baff 0%, #0257ff);
}
.advantage-feature h4 {
  font-size: 36px;
  line-height: 60px;
}
.advantage-feature ul {
  position: relative;
  z-index: 1;
  margin: 30px 0 0;
  padding: 40px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  list-style: none;
}
.advantage-feature li {
  position: relative;
  padding-left: 16px;
  font-size: 20px;
  line-height: 20px;
  color: #a9d2ff;
}
.advantage-feature li + li {
  margin-top: 24px;
}
.advantage-feature li::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 8px solid #A9D2FF;
}
.advantage-feature img {
  position: absolute;
  right: -14px;
  bottom: -10px;
  width: 200px;
  opacity: 0.5;
}
.advantage-card {
  padding: 48px 50px;
  border-radius: 16px;
  background: #F2F6FF;
}
.advantage-card h4 {
  display: flex;
  align-items: center;
  gap: 16px;
  color: #0257FF;
  font-size: 32px;
}
.advantage-card h4::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #0257FF;
}
.advantage-card p {
  margin-top: 24px;
  color: #666666;
  font-size: 24px;
  line-height: 40px;
}
.wave-one {
  background: #F2F6FF url("./images/advantage-wave-one.png") center bottom /
    cover no-repeat;
}
.wave-two {
  background: #F2F6FF url("./images/advantage-wave-two.png") center bottom /
    cover no-repeat;
}

.technology-section {
  padding: 80px 0 90px;
  background: #F2F5FA;
}
.technology-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 72px;
}
.technology-card {
  position: relative;
  min-height: 224px;
  overflow: hidden;
  padding: 48px 32px 40px;
  border-radius: 16px;
  background: #fff;
}
.technology-card h3 {
  position: relative;
  z-index: 1;
  width: max-content;
  isolation: isolate;
  font-size: 32px;
  line-height: 1;
}
.technology-card h3 span {
  position: absolute;
  z-index: -1;
  top: -43px;
  left: calc(100% - 30px);
  color: #D9EBFF;
  font-size: 80px;
  font-weight: 400;
  line-height: 93px;
}
.technology-card p {
  position: relative;
  margin-top: 24px;
  color: #666666;
  font-size: 24px;
  line-height: 40px;
}

.about-section {
  position: relative;
  min-height: 1030px;
  overflow: hidden;
  background: #fff;
}
.about-building {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  width: 44.8%;
  height: 100%;
  background: url("./images/about-building.png") left top / 100% 100% no-repeat;
}
.about-content {
  position: relative;
  z-index: 2;
  padding-top: 80px;
}
.about-content h3 {
  margin-top: 32px;
  color: #4D89FF;
  font-size: 28px;
  line-height: 1;
  font-weight: normal;
}
.about-text {
  width: 750px;
  margin-top: 72px;
}
.about-text p {
  margin-bottom: 32px;
  color: #666666;
  font-size: 20px;
  line-height: 36px;
}
.address {
  margin-top: 60px;
}
.address h4 {
  font-size: 32px;
}
.address p {
  margin-top: 24px;
  color: #666666;
  font-size: 24px;
}
.city-skyline {
  position: absolute;
  z-index: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 1400px;
  height: auto;
}
.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  color: #666666;
  background: #F2F5FA;
  font-size: 18px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}