:root {
  --bg: #eef1f7;
  --bg-2: #f7f8fb;
  --ink: #111827;
  --muted: #5d6677;
  --line: #d6dbe6;
  --card: #ffffff;
  --dark: #101f35;
  --dark-hover: #0b1729;
  --ai-blue: #2d8cff;
  --gold: #b8944d;
  --blue-soft: #eaf0ff;
  --purple-soft: #f1eafd;
  --shadow: 0 18px 45px rgba(17, 24, 39, 0.08);
  --font-main: "Alibaba PuHuiTi 3.0", "Alibaba PuHuiTi 2.0", "Alibaba PuHuiTi", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font-main);
  font-weight: 500;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

body.modal-open {
  overflow: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

.wechat-share-cover {
  position: absolute;
  top: 0;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.container {
  width: min(1280px, calc(100% - 112px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 86px;
  padding: 0 56px;
  background: rgba(238, 241, 247, 0.88);
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  backdrop-filter: blur(16px);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1;
  white-space: nowrap;
}

.brand-name {
  color: #111827;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 25px;
  font-weight: 350;
  line-height: 1.04;
  letter-spacing: 0.2em;
}

.brand-en {
  margin-top: 9px;
  color: #111827;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 11px;
  font-weight: 350;
  line-height: 1;
  letter-spacing: 0.28em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 800;
  color: #1f2937;
}

.nav-button {
  padding: 11px 18px;
  background: var(--dark);
  color: #fff;
  border: 1px solid var(--dark);
  border-radius: 2px;
}

.nav-button-outline {
  color: var(--dark);
  background: rgba(255, 255, 255, 0.34);
}

.nav-button:hover,
.primary-cta:hover,
.sticky-actions a:first-child:hover {
  background: var(--dark-hover);
}

.nav-button-outline:hover {
  color: #fff;
}

.hero {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(236, 240, 247, 0.98) 0%, rgba(236, 240, 247, 0.9) 35%, rgba(236, 240, 247, 0.36) 70%, rgba(236, 240, 247, 0.08) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(225, 232, 242, 0.2)),
    url("./assets/ai-flow-field.svg") 46% center / cover no-repeat,
    #e9eef6;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(236, 240, 247, 0.97) 0%, rgba(236, 240, 247, 0.8) 30%, rgba(236, 240, 247, 0.04) 62%, rgba(236, 240, 247, 0) 100%),
    radial-gradient(ellipse at 76% 42%, rgba(255, 246, 211, 0.68) 0%, rgba(255, 246, 211, 0.28) 30%, rgba(255, 246, 211, 0) 62%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(208, 218, 232, 0.08));
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .42;
  background-image:
    linear-gradient(rgba(255, 255, 255, .24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .24) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 38%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 38%, #000 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 86px;
}

.search-pill {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 14px;
  margin-bottom: 40px;
  color: #3b4455;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid #d9deea;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.page-label {
  margin: 0 0 18px;
  color: #7b8495;
  font-size: 14px;
  font-weight: 700;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(46px, 6.2vw, 76px);
  line-height: 1.06;
  letter-spacing: 0;
  font-weight: 900;
}

.hero-sub {
  max-width: 690px;
  color: #4b5565;
  font-size: 18px;
  line-height: 1.85;
  font-weight: 500;
}

.section {
  padding: 110px 0;
}

.section-soft {
  background:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    var(--bg);
  background-size: 28px 28px;
}

.section-title {
  max-width: 820px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-title h2 {
  margin-bottom: 16px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.16;
  font-weight: 900;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 500;
}

.feature-stack {
  display: grid;
  gap: 24px;
}

.wide-card {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 26px;
  padding: 34px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid #bfc7d5;
  box-shadow: var(--shadow);
}

.wide-card:first-child {
  border-color: rgba(18, 60, 63, 0.55);
}

.wide-card:first-child::after {
  content: "核心业务";
  position: absolute;
  top: 0;
  right: 0;
  padding: 8px 14px;
  color: #fff;
  background: var(--dark);
  font-size: 12px;
  font-weight: 800;
}

.card-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #253044;
  background: #e4e9f2;
  border: 1px solid #d0d7e4;
  font-weight: 900;
}

.card-meta {
  margin-bottom: 8px;
  color: #8a93a3;
  font-size: 13px;
  font-weight: 800;
}

.wide-card h3,
.role-card h3,
.why-card h3,
.path-card h3 {
  margin-bottom: 12px;
  font-size: 24px;
  font-weight: 850;
}

.wide-card p,
.role-card p,
.why-card p,
.path-card p {
  color: #4f596b;
  line-height: 1.75;
  font-weight: 500;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.tags span {
  padding: 7px 12px;
  color: #536074;
  background: #f2f4f8;
  border: 1px solid #d9dfea;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.path-list {
  width: min(960px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.path-card {
  position: relative;
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  align-items: start;
  padding: 28px 34px;
  background: #fff;
  border: 1px solid #dde2ec;
  cursor: pointer;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.path-card::after {
  content: "查看导图";
  position: absolute;
  right: 22px;
  bottom: 18px;
  color: #8490a3;
  font-size: 12px;
  font-weight: 800;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.path-card:hover,
.path-card:focus,
.path-card-active {
  background: #f9fbff;
  border-color: #9dafc8;
  box-shadow: 0 16px 38px rgba(17, 24, 39, 0.1);
  transform: translateY(-3px);
  outline: none;
}

.path-card:hover::after,
.path-card:focus::after,
.path-card-active::after {
  opacity: 1;
  transform: translateY(0);
}

.path-card strong {
  color: #b9c0cc;
  font-size: 24px;
  font-weight: 850;
}

.path-card h3,
.path-card p,
.path-card span {
  grid-column: 2;
}

.path-card span {
  display: inline-flex;
  width: fit-content;
  margin-top: 10px;
  padding: 7px 12px;
  background: #f2f4f8;
  color: #687386;
  font-size: 13px;
  font-weight: 700;
}

.path-highlight {
  background: #f0f2f7;
  border-color: #bfc7d5;
}

.method-showcase {
  width: min(1120px, 100%);
  margin: 28px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid #c9d2e3;
  box-shadow: var(--shadow);
}

.method-copy {
  padding: 10px 4px 10px 8px;
}

.method-copy > span {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 7px 12px;
  color: #1465c9;
  background: #eaf2ff;
  border: 1px solid #cdddf5;
  font-size: 12px;
  font-weight: 900;
}

.method-copy h3 {
  margin-bottom: 14px;
  color: #111827;
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.16;
  font-weight: 900;
}

.method-copy > p {
  margin-bottom: 24px;
  color: #546176;
  font-size: 16px;
  line-height: 1.8;
  font-weight: 600;
}

.method-output {
  padding: 18px;
  background: #f4f7fb;
  border: 1px solid #d8e0ed;
}

.method-output strong {
  display: block;
  margin-bottom: 12px;
  color: #263145;
  font-size: 14px;
  font-weight: 900;
}

.method-output ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding-left: 18px;
  color: #5c6678;
  font-size: 14px;
  line-height: 1.6;
}

.mind-map {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 160px 1fr;
  grid-template-rows: 1fr 128px 1fr;
  gap: 18px;
  min-height: 430px;
  padding: 26px;
  overflow: hidden;
  background:
    linear-gradient(rgba(45, 140, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 140, 255, 0.08) 1px, transparent 1px),
    #0f2544;
  background-size: 24px 24px;
  color: #fff;
}

.mind-map::before {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid rgba(124, 204, 255, 0.18);
  pointer-events: none;
}

.map-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(53, 242, 238, 0.48), transparent);
  pointer-events: none;
}

.map-line-x {
  left: 12%;
  right: 12%;
  top: 50%;
  height: 1px;
}

.map-line-y {
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(53, 242, 238, 0.48), transparent);
}

.map-core,
.map-node {
  position: relative;
  z-index: 1;
}

.map-core {
  grid-column: 2;
  grid-row: 2;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 6px;
  text-align: center;
  border: 1px solid rgba(53, 242, 238, 0.55);
  background: rgba(16, 31, 53, 0.88);
  box-shadow: 0 0 36px rgba(45, 140, 255, 0.22);
}

.map-core span {
  color: #fff;
  font-size: 24px;
  line-height: 1.1;
  font-weight: 900;
}

.map-core small {
  color: #35f2ee;
  font-size: 12px;
  font-weight: 900;
}

.map-node {
  display: grid;
  align-content: start;
  gap: 7px;
  min-height: 116px;
  padding: 18px;
  border: 1px solid rgba(204, 221, 255, 0.22);
  background: rgba(255, 255, 255, 0.075);
  backdrop-filter: blur(10px);
  transition: transform 260ms ease, border-color 260ms ease, background 260ms ease;
}

.method-showcase.is-switching .map-node,
.method-showcase.is-switching .method-copy {
  animation: mapPulse 420ms ease both;
}

.map-node strong {
  color: #fff;
  font-size: 17px;
  line-height: 1.35;
  font-weight: 900;
}

.map-node span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.55;
  font-weight: 600;
}

.map-node-1 {
  grid-column: 1;
  grid-row: 1;
}

.map-node-2 {
  grid-column: 3;
  grid-row: 1;
}

.map-node-3 {
  grid-column: 1;
  grid-row: 3;
}

.map-node-4 {
  grid-column: 3;
  grid-row: 3;
}

@keyframes mapPulse {
  from {
    opacity: 0.45;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.deal-line {
  width: min(1120px, 100%);
  margin: 34px auto 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.deal-step {
  position: relative;
  min-height: 148px;
  padding: 22px 22px 24px;
  background: #fff;
  border: 1px solid #d8deea;
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.05);
  overflow: hidden;
  transition: transform 240ms ease, border-color 240ms ease, box-shadow 240ms ease, background 240ms ease;
}

.deal-step::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: var(--dark);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 260ms ease;
}

.deal-step:hover,
.deal-step:focus-within,
.deal-step:focus {
  background: #f9fbff;
  border-color: #aeb9cc;
  box-shadow: 0 22px 48px rgba(17, 24, 39, 0.12);
  transform: translateY(-6px);
  outline: none;
}

.deal-step:hover::after,
.deal-step:focus-within::after,
.deal-step:focus::after {
  transform: scaleX(1);
}

.deal-step > span {
  display: inline-flex;
  margin-bottom: 14px;
  padding: 6px 10px;
  background: #f5f6fa;
  color: #738096;
  font-weight: 800;
  font-size: 13px;
}

.deal-step h3 {
  margin-bottom: 8px;
  color: #273246;
  font-size: 24px;
  line-height: 1.25;
  font-weight: 900;
}

.deal-step > p {
  margin: 0;
  color: #657186;
  font-size: 14px;
  line-height: 1.55;
  font-weight: 700;
}

.deal-detail {
  max-height: 0;
  opacity: 0;
  transform: translateY(12px);
  transition: max-height 320ms ease, opacity 240ms ease, transform 240ms ease, padding-top 240ms ease;
}

.deal-step:hover .deal-detail,
.deal-step:focus-within .deal-detail,
.deal-step:focus .deal-detail {
  max-height: 280px;
  opacity: 1;
  transform: translateY(0);
  padding-top: 18px;
}

.deal-detail strong {
  display: block;
  margin-bottom: 10px;
  color: #263145;
  font-size: 14px;
  line-height: 1.55;
  font-weight: 850;
}

.deal-detail ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
  color: #596579;
  font-size: 13px;
  line-height: 1.55;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.role-card {
  min-height: 350px;
  padding: 34px;
  border: 1px solid #cfd6e3;
}

.role-card:nth-child(1) {
  background: #e9efff;
}

.role-card:nth-child(2) {
  background: #eef1f6;
}

.role-card:nth-child(3) {
  background: var(--purple-soft);
}

.role-card ul {
  margin: 22px 0 0;
  padding-left: 18px;
  color: #4f596b;
  line-height: 1.9;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.why-card {
  position: relative;
  min-height: 210px;
  padding: 28px;
  background: #fff;
  border: 1px solid #dde2ec;
  cursor: pointer;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.why-card span {
  display: inline-flex;
  margin-bottom: 24px;
  color: #7a8496;
  font-weight: 900;
}

.why-card b {
  position: absolute;
  right: 24px;
  bottom: 22px;
  color: #2b67d8;
  font-size: 12px;
  font-weight: 900;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.why-card:hover,
.why-card:focus,
.why-card-active {
  border-color: rgba(45, 140, 255, 0.55);
  background: linear-gradient(135deg, #ffffff 0%, #eef4ff 100%);
  box-shadow: 0 20px 46px rgba(16, 31, 53, 0.1);
  transform: translateY(-4px);
  outline: 0;
}

.why-card:hover b,
.why-card:focus b,
.why-card-active b {
  opacity: 1;
  transform: translateY(0);
}

.why-showcase {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 28px;
  margin-top: 28px;
  padding: 34px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid #cfd7e5;
  box-shadow: 0 24px 70px rgba(16, 31, 53, 0.08);
  overflow: hidden;
}

.why-showcase-copy {
  padding: 10px 4px;
}

.why-showcase-copy > span {
  display: inline-flex;
  margin-bottom: 18px;
  color: #2b67d8;
  font-size: 13px;
  font-weight: 900;
}

.why-showcase-copy h3 {
  margin-bottom: 18px;
  font-size: clamp(26px, 2.6vw, 38px);
  line-height: 1.22;
}

.why-showcase-copy p {
  margin-bottom: 22px;
  color: #4f596b;
  font-size: 16px;
  line-height: 1.85;
}

.why-showcase-copy ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.why-showcase-copy li {
  position: relative;
  padding: 13px 16px 13px 42px;
  color: #344054;
  background: rgba(238, 243, 252, 0.82);
  border: 1px solid #d8e0ee;
  line-height: 1.55;
}

.why-showcase-copy li::before {
  content: "";
  position: absolute;
  top: 19px;
  left: 18px;
  width: 8px;
  height: 8px;
  background: var(--ai-blue);
  box-shadow: 0 0 0 5px rgba(45, 140, 255, 0.12);
}

.why-map {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(3, minmax(118px, auto));
  gap: 18px;
  min-height: 430px;
  padding: 24px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(135deg, #e8eef8 0%, #f7f8fb 58%, #eef2ff 100%);
  background-size: 24px 24px, 24px 24px, auto;
  border: 1px solid #d3dbe8;
}

.why-map::before,
.why-map::after {
  content: "";
  position: absolute;
  z-index: 0;
  background: linear-gradient(90deg, transparent, rgba(45, 140, 255, 0.52), transparent);
  pointer-events: none;
}

.why-map::before {
  top: 50%;
  left: 11%;
  right: 11%;
  height: 1px;
}

.why-map::after {
  top: 11%;
  bottom: 11%;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(45, 140, 255, 0.52), transparent);
}

.why-map-center,
.why-map-node {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.why-map-center {
  grid-column: 2;
  grid-row: 2;
  align-items: center;
  min-height: 124px;
  color: #fff;
  background: linear-gradient(135deg, #101f35 0%, #18375f 100%);
  border: 1px solid rgba(255, 255, 255, 0.38);
  box-shadow: 0 20px 45px rgba(16, 31, 53, 0.22);
  text-align: center;
}

.why-map-center strong {
  margin-bottom: 8px;
  font-size: 25px;
  line-height: 1.2;
}

.why-map-center span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.why-map-node {
  min-height: 118px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid #d4dce9;
  box-shadow: 0 10px 26px rgba(16, 31, 53, 0.06);
}

.why-map-node::before {
  content: "";
  width: 24px;
  height: 3px;
  margin-bottom: 18px;
  background: linear-gradient(90deg, var(--gold), var(--ai-blue));
}

.why-map-node strong {
  margin-bottom: 9px;
  font-size: 18px;
  line-height: 1.28;
}

.why-map-node span {
  color: #5d6677;
  font-size: 13px;
  line-height: 1.65;
}

.why-node-1 {
  grid-column: 1;
  grid-row: 1;
}

.why-node-2 {
  grid-column: 3;
  grid-row: 1;
}

.why-node-3 {
  grid-column: 1;
  grid-row: 3;
}

.why-node-4 {
  grid-column: 3;
  grid-row: 3;
}

.why-showcase.is-switching .why-map-center,
.why-showcase.is-switching .why-map-node,
.why-showcase.is-switching .why-showcase-copy {
  animation: whyPulse 0.42s ease both;
}

@keyframes whyPulse {
  from {
    opacity: 0.42;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.founder-story {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 52px;
  align-items: start;
  width: min(980px, 100%);
  margin: 0 auto;
}

.founder-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  width: min(1120px, 100%);
  margin: 0 auto;
}

.founder-card {
  display: grid;
  grid-template-columns: 44% minmax(0, 1fr);
  min-height: 430px;
  background: #fff;
  border: 1px solid #d7deea;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.founder-photo {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
  background: #dfe5ef;
}

.founder-photo-wang {
  object-position: 50% 28%;
}

.founder-photo-liu {
  object-position: 50% 28%;
}

.founder-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
}

.founder-role {
  width: fit-content;
  margin-bottom: 18px;
  padding: 7px 12px;
  color: #526175;
  background: #f1f4f9;
  border: 1px solid #dce3ef;
  font-size: 12px;
  font-weight: 900;
}

.founder-copy h3 {
  margin-bottom: 12px;
  font-size: 34px;
  line-height: 1.1;
  font-weight: 900;
}

.founder-title {
  margin-bottom: 22px;
  color: #536074;
  font-size: 17px;
  line-height: 1.55;
  font-weight: 700;
}

.founder-copy ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  color: #5c6678;
  line-height: 1.65;
}

.founder-summary {
  width: min(1120px, 100%);
  margin: 30px auto 0;
}

.team-extension {
  position: relative;
  width: min(1120px, 100%);
  margin: 34px auto 0;
  padding: 44px;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 10%, rgba(45, 140, 255, 0.16), transparent 32%),
    radial-gradient(circle at 88% 18%, rgba(53, 242, 238, 0.12), transparent 28%),
    linear-gradient(135deg, #0f2544 0%, #112b52 52%, #0f2544 100%);
  color: #fff;
}

.team-extension::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(45, 140, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 140, 255, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.55;
  pointer-events: none;
}

.team-extension > * {
  position: relative;
  z-index: 1;
}

.team-extension-title {
  margin-bottom: 30px;
}

.team-extension-title span {
  display: inline-flex;
  margin-bottom: 12px;
  color: #35f2ee;
  font-size: 15px;
  font-weight: 900;
}

.team-extension-title h3 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  font-weight: 900;
}

.advisor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.advisor-card {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  min-height: 208px;
  padding: 26px;
  border: 1px solid rgba(158, 196, 255, 0.24);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
}

.advisor-card-wide {
  grid-column: span 2;
}

.advisor-card img {
  width: 112px;
  height: 112px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid rgba(222, 239, 255, 0.94);
  box-shadow: 0 0 0 1px rgba(53, 242, 238, 0.22);
}

.advisor-card h4 {
  margin: 0 0 8px;
  color: #fff;
  font-size: 27px;
  line-height: 1.18;
  font-weight: 900;
}

.advisor-role {
  margin: 0 0 20px;
  color: #35f2ee;
  font-size: 17px;
  line-height: 1.42;
  font-weight: 900;
}

.advisor-card p:not(.advisor-role) {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  line-height: 1.7;
  font-weight: 500;
}

.portrait-card img {
  width: 220px;
  height: 260px;
  object-fit: cover;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.portrait-card h3 {
  margin-bottom: 8px;
  font-size: 28px;
  font-weight: 850;
}

.portrait-card p,
.portrait-card span {
  display: block;
  color: #5f6979;
  line-height: 1.7;
  font-weight: 500;
}

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

.story-list article {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 18px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid #dde2ec;
}

.story-list strong {
  color: #2c3445;
  font-weight: 850;
}

.story-list p {
  margin: 0;
  color: #5c6678;
  line-height: 1.7;
  font-weight: 500;
}

.photo-strip {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 1.1fr;
  gap: 18px;
  margin-top: 54px;
}

.photo-strip img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  filter: saturate(0.9);
}

.highlight-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin: 42px auto 0;
  width: min(1120px, 100%);
}

.highlight-strip figure {
  margin: 0;
  background: #fff;
  border: 1px solid #d7deea;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.highlight-strip img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.02);
}

.highlight-strip figcaption {
  display: grid;
  gap: 8px;
  min-height: 116px;
  padding: 20px 22px 22px;
}

.highlight-strip strong {
  color: #202938;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 850;
}

.highlight-strip span {
  color: #5c6678;
  font-size: 14px;
  line-height: 1.7;
  font-weight: 500;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.scene-card {
  background: #fff;
  border: 1px solid #d7deea;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.scene-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.02);
}

.scene-card:nth-child(4) img {
  aspect-ratio: 16 / 10;
  object-position: center center;
}

.scene-card div {
  min-height: 122px;
  padding: 20px 24px 22px;
}

.scene-card h3 {
  margin-bottom: 10px;
  color: #202938;
  font-size: 21px;
  line-height: 1.32;
  font-weight: 850;
}

.scene-card p {
  margin: 0;
  color: #5c6678;
  font-size: 15px;
  line-height: 1.7;
  font-weight: 500;
}

.cta-section {
  padding: 100px 0 84px;
  text-align: center;
  background: var(--bg);
}

.cta-section h2 {
  max-width: 760px;
  margin: 0 auto 18px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.25;
  font-weight: 900;
}

.cta-section p {
  max-width: 620px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 190px;
  height: 46px;
  background: var(--dark);
  color: #fff;
  font-weight: 800;
}

.wechat-qr-panel {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 7px;
  width: min(144px, 100%);
  margin: 20px auto 0;
  padding: 10px 10px 10px;
  background: linear-gradient(145deg, rgba(227, 234, 246, 0.94), rgba(241, 245, 251, 0.78));
  border: 1px solid #c9d4e5;
  box-shadow: 0 10px 24px rgba(16, 31, 53, 0.06);
}

.wechat-qr-panel::before {
  content: "";
  width: 34px;
  height: 2px;
  margin-bottom: 2px;
  background: linear-gradient(90deg, var(--gold), var(--ai-blue));
}

.wechat-qr-panel img {
  width: 108px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  padding: 3px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(205, 216, 233, 0.86);
}

.wechat-qr-panel span {
  color: #3f4a5d;
  font-size: 11px;
  font-weight: 800;
}

.footer {
  padding: 70px 0 96px;
  background: #e9edf5;
  color: #323b4d;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 56px;
  padding-bottom: 48px;
}

.footer-brand {
  margin-bottom: 20px;
}

.footer h4 {
  margin: 0 0 18px;
}

.footer a,
.footer p {
  display: block;
  margin: 0 0 12px;
  color: #5d6677;
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 22px;
  border-top: 1px solid #d1d7e3;
  color: #8a93a3;
  font-size: 12px;
}

.sticky-actions {
  position: fixed;
  top: 50%;
  right: 8px;
  z-index: 60;
  display: grid;
  gap: 8px;
  width: 46px;
  transform: translateY(-50%);
  background: transparent;
}

.sticky-actions a {
  display: grid;
  place-items: center;
  width: 46px;
  height: 132px;
  border: 1px solid var(--dark);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
}

.sticky-actions a:first-child {
  background: var(--dark);
  color: #fff;
}

.sticky-actions a:nth-child(2) {
  color: var(--dark);
  background: #fff;
}

.h5-mobile-bar {
  display: none;
}

.h5-share-toast {
  position: fixed;
  left: 50%;
  bottom: calc(82px + env(safe-area-inset-bottom, 0px));
  z-index: 150;
  max-width: min(320px, calc(100vw - 40px));
  padding: 11px 16px;
  color: #fff;
  background: rgba(16, 31, 53, 0.94);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(16, 31, 53, 0.22);
  font-size: 14px;
  font-weight: 800;
  text-align: center;
  transform: translate(-50%, 10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.h5-share-toast.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

.qr-modal[hidden] {
  display: none;
}

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 130;
  display: grid;
  place-items: center;
  padding: 24px;
}

.qr-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(16, 31, 53, 0.52);
  backdrop-filter: blur(10px);
}

.qr-dialog {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
  width: min(360px, 100%);
  padding: 34px 32px 30px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.32) 1px, transparent 1px),
    #eef3fb;
  background-size: 22px 22px;
  border: 1px solid #cbd6e6;
  box-shadow: 0 34px 80px rgba(16, 31, 53, 0.28);
  text-align: center;
}

.qr-dialog::before {
  content: "";
  width: 48px;
  height: 3px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, var(--gold), var(--ai-blue));
}

.qr-dialog > span {
  margin-bottom: 10px;
  color: #2b67d8;
  font-size: 13px;
  font-weight: 900;
}

.qr-dialog h3 {
  margin-bottom: 20px;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.35;
}

.qr-dialog p {
  margin: 16px 0 0;
  color: #5d6677;
  font-size: 13px;
  line-height: 1.6;
}

.qr-close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(16, 31, 53, 0.92);
  color: #fff;
  font-family: inherit;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.qr-code-card {
  display: grid;
  place-items: center;
  padding: 12px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid #d5deeb;
}

.qr-code-card img {
  width: 180px;
  height: auto;
}

.booking-modal[hidden] {
  display: none;
}

.booking-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  padding: 28px;
}

.booking-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(16, 31, 53, 0.52);
  backdrop-filter: blur(10px);
}

.booking-dialog {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  width: min(760px, 100%);
  background:
    linear-gradient(rgba(255, 255, 255, 0.32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.32) 1px, transparent 1px),
    #eef3fb;
  background-size: 22px 22px;
  border: 1px solid #cbd6e6;
  box-shadow: 0 34px 80px rgba(16, 31, 53, 0.28);
  overflow: hidden;
}

.booking-dialog::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--ai-blue));
}

.booking-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(16, 31, 53, 0.92);
  color: #fff;
  font-family: inherit;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.booking-copy {
  padding: 54px 34px 42px;
  background: linear-gradient(145deg, #101f35 0%, #17335a 100%);
  color: #fff;
}

.booking-copy > span {
  display: inline-flex;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 900;
}

.booking-copy h3 {
  margin-bottom: 18px;
  font-size: 30px;
  line-height: 1.25;
}

.booking-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.8;
}

.booking-form {
  display: grid;
  gap: 16px;
  padding: 54px 42px 38px;
}

.form-hidden {
  display: none;
}

.booking-form label {
  display: grid;
  gap: 8px;
  color: #253044;
  font-size: 13px;
  font-weight: 900;
}

.booking-form input {
  width: 100%;
  height: 44px;
  border: 1px solid #c7d2e3;
  outline: 0;
  padding: 0 13px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
}

.booking-form input:focus {
  border-color: var(--ai-blue);
  box-shadow: 0 0 0 3px rgba(45, 140, 255, 0.12);
}

.booking-form button {
  height: 46px;
  margin-top: 4px;
  border: 0;
  background: var(--dark);
  color: #fff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 900;
  cursor: pointer;
}

.booking-form button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.booking-status {
  margin: 0;
  color: #697386;
  font-size: 12px;
  line-height: 1.6;
}

.booking-status.is-error {
  color: #a94442;
}

.booking-status.is-success {
  color: #2f6f4f;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 680ms ease, transform 680ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .container {
    width: min(100% - 40px, 760px);
  }

  .topbar {
    padding: 0 20px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .brand-name {
    font-size: 23px;
  }

  .brand-en {
    font-size: 10px;
    letter-spacing: 0.2em;
  }

  .nav {
    display: none;
  }

  .hero {
    min-height: 560px;
    background:
      linear-gradient(90deg, rgba(236, 240, 247, 0.98) 0%, rgba(236, 240, 247, 0.94) 62%, rgba(236, 240, 247, 0.66) 100%),
      url("./assets/ai-flow-field.svg") 58% center / auto 100% no-repeat,
      #e9eef6;
  }

  .role-grid,
  .why-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .method-showcase {
    grid-template-columns: 1fr;
  }

  .why-showcase {
    grid-template-columns: 1fr;
  }

  .booking-dialog {
    grid-template-columns: 1fr;
    max-height: calc(100vh - 40px);
    overflow: auto;
  }

  .booking-copy {
    padding: 42px 30px 30px;
  }

  .booking-form {
    padding: 32px 30px 30px;
  }

  .mind-map {
    min-height: 390px;
  }

  .deal-detail {
    max-height: none;
    opacity: 1;
    transform: none;
    padding-top: 16px;
  }

  .deal-step:hover,
  .deal-step:focus-within,
  .deal-step:focus {
    transform: none;
  }

  .founder-story {
    grid-template-columns: 1fr;
  }

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

  .team-extension {
    padding: 30px;
  }

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

  .advisor-card-wide {
    grid-column: auto;
  }

  .founder-card {
    grid-template-columns: 42% minmax(0, 1fr);
    min-height: 360px;
  }

  .founder-photo {
    min-height: 360px;
  }

  .photo-strip {
    grid-template-columns: 1fr;
  }

  .highlight-strip {
    grid-template-columns: 1fr;
  }

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

  .sticky-actions {
    top: auto;
    right: auto;
    left: 50%;
    bottom: 0;
    width: 100%;
    transform: translateX(-50%);
    background: var(--bg);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
  }

  .sticky-actions a {
    width: 100%;
    height: 46px;
    letter-spacing: 0;
    writing-mode: horizontal-tb;
  }
}

@media (max-width: 760px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  body {
    min-width: 0;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
  }

  body.has-h5-mobile-bar {
    padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  body.has-h5-mobile-bar .sticky-actions {
    display: none;
  }

  body.is-h5-mobile-page .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .h5-mobile-bar {
    position: fixed;
    right: 12px;
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    left: 12px;
    z-index: 120;
    display: grid;
    grid-template-columns: repeat(var(--h5-actions, 3), minmax(0, 1fr));
    gap: 8px;
    padding: 7px;
    background: rgba(247, 248, 251, 0.94);
    border: 1px solid rgba(16, 31, 53, 0.12);
    border-radius: 8px;
    box-shadow: 0 18px 52px rgba(16, 31, 53, 0.22);
    backdrop-filter: blur(18px);
  }

  .h5-mobile-bar a,
  .h5-mobile-bar button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    min-height: 42px;
    padding: 0 10px;
    color: #fff;
    background: var(--dark);
    border: 0;
    border-radius: 7px;
    font: inherit;
    font-size: 14px;
    font-weight: 900;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
  }

  .h5-mobile-bar .h5-primary {
    background: linear-gradient(135deg, #101f35, #245b9c);
  }

  .h5-mobile-bar .h5-share {
    background: linear-gradient(135deg, #b8944d, #d6aa4d);
    color: #111827;
  }

  .h5-share-toast {
    bottom: calc(86px + env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 620px) {
  .topbar {
    height: 74px;
  }

  .brand-mark {
    width: 39px;
    height: 39px;
  }

  .brand-name {
    font-size: 21px;
    letter-spacing: 0.16em;
  }

  .brand-en {
    font-size: 9px;
    letter-spacing: 0.12em;
  }

  .hero-inner {
    padding-top: 54px;
  }

  h1 {
    font-size: 42px;
  }

  .section {
    padding: 76px 0;
  }

  .booking-modal {
    padding: 18px;
  }

  .booking-copy h3 {
    font-size: 26px;
  }

  .wide-card,
  .path-card,
  .founder-card,
  .story-list article {
    grid-template-columns: 1fr;
  }

  .deal-line {
    grid-template-columns: 1fr;
  }

  .method-showcase {
    padding: 20px;
  }

  .mind-map {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    min-height: 0;
    padding: 20px;
  }

  .map-line,
  .mind-map::before {
    display: none;
  }

  .map-core,
  .map-node,
  .map-node-1,
  .map-node-2,
  .map-node-3,
  .map-node-4 {
    grid-column: auto;
    grid-row: auto;
  }

  .map-core {
    min-height: 108px;
  }

  .map-node {
    min-height: 0;
  }

  .why-showcase {
    padding: 20px;
  }

  .why-map {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    min-height: 0;
    padding: 20px;
  }

  .why-map::before,
  .why-map::after {
    display: none;
  }

  .why-map-center,
  .why-node-1,
  .why-node-2,
  .why-node-3,
  .why-node-4 {
    grid-column: auto;
    grid-row: auto;
  }

  .why-map-center,
  .why-map-node {
    min-height: 0;
  }

  .deal-step {
    min-height: 0;
  }

  .team-extension {
    padding: 24px 20px;
  }

  .advisor-card {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 16px;
    min-height: 0;
    padding: 20px;
  }

  .advisor-card img {
    width: 86px;
    height: 86px;
  }

  .advisor-card h4 {
    font-size: 23px;
  }

  .advisor-role {
    margin-bottom: 12px;
    font-size: 15px;
  }

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

  .highlight-strip figcaption {
    min-height: auto;
  }

  .scene-card div {
    min-height: auto;
  }

  .founder-photo {
    height: 360px;
    min-height: 0;
  }

  .founder-copy {
    padding: 26px;
  }

  .founder-copy h3 {
    font-size: 30px;
  }

  .path-card h3,
  .path-card p,
  .path-card span {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
  }
}