:root {
  color-scheme: light;
  --forest: #0e2a18;
  --forest-deep: #082016;
  --green: #4b8130;
  --lime: #a1cf00;
  --cream: #e6eeca;
  --yellow: #f8bb19;
  --paper: #fbfaf4;
  --white: #ffffff;
  --ink: #10261c;
  --muted: #526259;
  --line: rgba(16, 38, 28, 0.16);
  --line-light: rgba(255, 255, 255, 0.2);
  --shell: min(1180px, calc(100vw - 48px));
  --header-height: 78px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  --font-latin: Inter, "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

button,
input,
textarea {
  font: inherit;
}

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

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

h1,
h2,
h3 {
  letter-spacing: -0.04em;
  line-break: strict;
  line-height: 1.12;
  text-wrap: balance;
}

.phrase-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
}

.heading-phrase {
  flex: 0 0 auto;
  white-space: nowrap;
}

h1 {
  margin-bottom: 28px;
  font-size: clamp(3rem, 5.7vw, 5.65rem);
  font-weight: 700;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(2.25rem, 4vw, 4.3rem);
  font-weight: 650;
}

h3 {
  margin-bottom: 8px;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 650;
}

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--yellow);
  color: var(--forest-deep);
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  width: var(--shell);
  margin-inline: auto;
}

.section {
  padding-block: clamp(88px, 10vw, 144px);
}

.eyebrow {
  margin-bottom: 20px;
  color: var(--green);
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.18em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow-light {
  color: var(--lime);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-inline: max(24px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 244, 0.96);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-mark {
  width: 40px;
  height: 40px;
  fill: var(--forest);
}

.brand-mark path:nth-child(n + 2) {
  fill: var(--green);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
}

.brand-copy span {
  font-family: var(--font-latin);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.24em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(24px, 3vw, 44px);
}

.nav-link {
  position: relative;
  padding-block: 28px 24px;
  color: #32453a;
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: 17px;
  left: 0;
  height: 2px;
  background: var(--green);
  content: "";
  opacity: 0;
  transform: scaleX(0.5);
  transition: opacity 160ms ease, transform 160ms ease;
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--forest);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--forest);
  transition: transform 180ms ease;
}

.home-hero {
  position: relative;
  overflow: hidden;
  min-height: min(760px, calc(100vh - var(--header-height)));
  padding-block: clamp(72px, 9vw, 128px);
  background: var(--forest);
  color: var(--white);
}

.home-hero::after {
  position: absolute;
  right: -120px;
  bottom: -180px;
  width: 460px;
  height: 460px;
  border: 1px solid rgba(161, 207, 0, 0.24);
  border-radius: 50%;
  content: "";
}

.home-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(420px, 0.88fr);
  gap: clamp(48px, 5vw, 72px);
  align-items: center;
}

.hero-copy {
  max-width: 650px;
}

.home-hero h1 {
  font-size: clamp(3rem, 4.7vw, 4.5rem);
}

.hero-lede {
  max-width: 660px;
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.8;
}

.team-proof {
  display: inline-flex;
  margin: 0;
  align-items: center;
  gap: 10px;
  color: var(--cream);
  font-size: 0.9rem;
  font-weight: 600;
}

.team-proof svg {
  width: 22px;
  fill: none;
  stroke: var(--lime);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.connection-system {
  position: relative;
  min-width: 0;
}

.connection-system svg {
  width: 100%;
  height: auto;
}

.network-grid {
  fill: none;
  opacity: 0.13;
  stroke: var(--cream);
  stroke-width: 0.7;
}

.network-paths {
  fill: none;
  stroke: var(--lime);
  stroke-linecap: round;
  stroke-width: 1.5;
}

.network-paths path:nth-child(even) {
  opacity: 0.5;
  stroke: var(--cream);
}

.network-nodes {
  fill: var(--lime);
  stroke: var(--forest);
  stroke-width: 4;
}

.network-panels {
  fill: rgba(14, 42, 24, 0.9);
  stroke: rgba(230, 238, 202, 0.62);
  stroke-width: 1.5;
}

.network-people {
  fill: var(--cream);
  opacity: 0.92;
}

.network-labels {
  fill: rgba(230, 238, 202, 0.52);
  font-family: var(--font-latin);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.company-profile {
  background: var(--paper);
}

.company-heading {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(48px, 9vw, 132px);
  align-items: end;
}

.company-heading h2 {
  margin-bottom: 0;
}

.company-heading > p {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.55vw, 1.25rem);
  line-height: 1.9;
}

.company-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(72px, 9vw, 112px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.company-pillars article {
  min-height: 220px;
  padding: 32px clamp(24px, 3vw, 40px) 36px 0;
}

.company-pillars article + article {
  padding-left: clamp(24px, 3vw, 40px);
  border-left: 1px solid var(--line);
}

.company-pillars span,
.principle-list span {
  display: block;
  margin-bottom: 52px;
  color: var(--green);
  font-family: var(--font-latin);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.company-pillars p {
  margin: 0;
  color: var(--muted);
}

.company-belief {
  background: var(--cream);
}

.belief-grid,
.team-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(48px, 9vw, 132px);
}

.belief-copy h2,
.company-team h2 {
  margin-bottom: 0;
  font-size: clamp(2.4rem, 4.2vw, 4.5rem);
}

.belief-lede {
  margin-bottom: 44px;
  color: #304438;
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
  line-height: 1.85;
}

.principle-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(16, 38, 28, 0.22);
  list-style: none;
}

.principle-list li {
  display: grid;
  grid-template-columns: 48px minmax(150px, 0.7fr) minmax(0, 1.3fr);
  gap: 20px;
  align-items: baseline;
  padding-block: 24px;
  border-bottom: 1px solid rgba(16, 38, 28, 0.22);
}

.principle-list span,
.principle-list p {
  margin-bottom: 0;
}

.principle-list strong {
  font-size: 1rem;
}

.principle-list p {
  color: var(--muted);
}

.company-team {
  background: var(--paper);
}

.team-statement > p {
  margin-bottom: 48px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.9;
}

.team-statement dl {
  margin-bottom: 0;
  border-top: 1px solid var(--line);
}

.team-statement dl div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  padding-block: 20px;
  border-bottom: 1px solid var(--line);
}

.team-statement dt {
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 700;
}

.team-statement dd {
  font-weight: 600;
}

.company-contact {
  padding-block: clamp(72px, 9vw, 112px);
  background: var(--forest);
  color: var(--white);
}

.company-contact h2 {
  margin-bottom: 0;
}

.company-contact address {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
  align-self: end;
  font-style: normal;
}

.company-contact address a {
  border-bottom: 1px solid var(--line-light);
  color: var(--cream);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
}

.company-contact address a:hover,
.company-contact address a:focus-visible {
  border-color: var(--lime);
  color: var(--white);
}

.site-footer {
  padding-block: 38px;
  border-top: 1px solid var(--line-light);
  background: var(--forest-deep);
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.78rem;
}

/* QingSails */
.product-hero {
  padding-block: clamp(88px, 10vw, 144px) clamp(72px, 8vw, 112px);
}

.qingsails-hero {
  position: relative;
  overflow: hidden;
  background: var(--paper);
}

.qingsails-hero::after {
  position: absolute;
  top: -170px;
  right: -90px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: var(--lime);
  content: "";
}

.product-hero-heading {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: end;
}

.product-hero-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -24px;
}

.product-hero-heading h1 {
  max-width: 840px;
  margin-bottom: 0;
  color: var(--forest);
  font-size: clamp(3rem, 5.6vw, 5.6rem);
}

.page-qingsails .product-hero-heading h1 {
  font-size: clamp(2.15rem, 4.8vw, 4.9rem);
}

.product-hero-summary {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
  margin-bottom: 6px;
}

.product-hero-summary > p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.9;
}

.buyer-flow {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(72px, 9vw, 112px);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.buyer-flow article {
  position: relative;
  min-height: 250px;
  padding: 26px;
}

.buyer-flow article + article {
  border-left: 1px solid var(--line);
}

.buyer-flow article:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -7px;
  z-index: 2;
  width: 13px;
  height: 13px;
  border-top: 1px solid var(--green);
  border-right: 1px solid var(--green);
  background: var(--paper);
  content: "";
  transform: rotate(45deg);
}

.buyer-flow article > span,
.signal-panel header span,
.method-track > li > span {
  color: var(--green);
  font-family: var(--font-latin);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.buyer-flow svg {
  width: 52px;
  margin: 45px 0 28px;
  fill: none;
  stroke: var(--forest);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.buyer-flow strong,
.buyer-flow small {
  display: block;
}

.buyer-flow strong {
  margin-bottom: 5px;
  font-family: var(--font-latin);
  font-size: 0.88rem;
}

.buyer-flow small {
  color: var(--muted);
}

.qingsails-signals {
  background: var(--cream);
}

.product-section-heading {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(300px, 0.7fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: end;
}

.product-section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(2.35rem, 4.1vw, 4.4rem);
}

.product-section-heading > p {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.85;
}

.signal-panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(64px, 8vw, 96px);
  border: 1px solid rgba(16, 38, 28, 0.22);
  background: var(--paper);
}

.signal-panel {
  display: flex;
  min-height: 440px;
  flex-direction: column;
  padding: 30px;
}

.signal-panel + .signal-panel {
  border-left: 1px solid rgba(16, 38, 28, 0.22);
}

.signal-panel header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.signal-panel header h3 {
  font-size: 1.25rem;
}

.signal-panel > p {
  margin: auto 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.signal-table {
  margin-block: 42px;
  border-top: 1px solid var(--line);
}

.signal-table div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 11px;
  border-bottom: 1px solid var(--line);
  font-size: 0.78rem;
}

.signal-table b {
  font-family: var(--font-latin);
  font-weight: 650;
}

.knowledge-stack {
  position: relative;
  display: grid;
  gap: 9px;
  margin-block: 42px;
  padding-left: 28px;
}

.knowledge-stack::before {
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 7px;
  width: 1px;
  background: var(--green);
  content: "";
}

.knowledge-stack div {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
}

.knowledge-stack i {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  background: var(--lime);
}

.funnel-visual {
  display: flex;
  margin-block: 42px;
  flex-direction: column;
  align-items: center;
}

.funnel-visual span {
  display: flex;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: var(--green);
  color: var(--white);
  font-size: 0.74rem;
}

.funnel-visual span:nth-child(1) { width: 100%; opacity: 0.62; }
.funnel-visual span:nth-child(2) { width: 80%; opacity: 0.74; }
.funnel-visual span:nth-child(3) { width: 60%; opacity: 0.86; }
.funnel-visual span:nth-child(4) { width: 40%; background: var(--forest); }

.qingsails-problem {
  background: var(--forest);
  color: var(--white);
}

.problem-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(48px, 9vw, 132px);
}

.problem-grid h2 {
  margin-bottom: 0;
  font-size: clamp(2.25rem, 3.3vw, 2.85rem);
}

.problem-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.problem-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding-block: 24px;
  border-bottom: 1px solid var(--line-light);
}

.problem-list > li > span {
  color: var(--lime);
  font-family: var(--font-latin);
  font-size: 0.72rem;
  font-weight: 700;
}

.problem-list h3 {
  margin-bottom: 8px;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.problem-list p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.9rem;
}

.qingsails-method {
  background: var(--paper);
}

.method-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: clamp(64px, 8vw, 96px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.method-track li {
  min-height: 270px;
  padding: 30px 28px;
}

.method-track li + li {
  border-left: 1px solid var(--line);
}

.method-track h3 {
  margin-top: 64px;
}

.method-track p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 15px 22px;
  border: 1px solid transparent;
  font-size: 0.92rem;
  font-weight: 700;
  transition: background 160ms ease, color 160ms ease;
}

.button svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.button-forest {
  background: var(--forest);
  color: var(--white);
}

.button-forest:hover,
.button-forest:focus-visible {
  background: var(--green);
}

/* Luming Zhiyin */
.zhiyin-hero {
  background: var(--paper);
}

.zhiyin-accent {
  color: #bb7f00;
}

.dialogue-intelligence {
  overflow: hidden;
  margin-top: clamp(72px, 9vw, 112px);
  border: 1px solid var(--line);
  background: var(--forest);
}

.dialogue-intelligence svg {
  width: 100%;
  height: auto;
}

.dialogue-grid {
  fill: var(--cream);
  opacity: 0.11;
}

.profile {
  fill: rgba(230, 238, 202, 0.14);
  stroke: rgba(230, 238, 202, 0.48);
  stroke-width: 1.6;
}

.dialogue-wave {
  fill: none;
  stroke: var(--yellow);
  stroke-linecap: round;
  stroke-width: 3;
}

.dialogue-wave path:last-child {
  opacity: 0.3;
  stroke: var(--cream);
  stroke-width: 1;
}

.dialogue-points {
  fill: var(--yellow);
  stroke: var(--forest);
  stroke-width: 3;
}

.antler-mark {
  fill: none;
  stroke: var(--yellow);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.dialogue-labels {
  fill: rgba(230, 238, 202, 0.5);
  font-family: var(--font-latin);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.zhiyin-features {
  background: var(--paper);
}

.zhiyin-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(64px, 8vw, 96px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.zhiyin-feature-grid article {
  min-height: 360px;
  padding: 30px 28px;
}

.zhiyin-feature-grid article + article {
  border-left: 1px solid var(--line);
}

.zhiyin-feature-grid article > span,
.zhiyin-track > li > span {
  color: #bb7f00;
  font-family: var(--font-latin);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.zhiyin-feature-grid svg {
  width: 48px;
  margin: 62px 0 30px;
  fill: none;
  stroke: var(--forest);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.zhiyin-feature-grid p,
.zhiyin-track p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.zhiyin-insight {
  background: var(--forest);
  color: var(--white);
}

.insight-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.75fr) minmax(480px, 1.25fr);
  gap: clamp(52px, 8vw, 112px);
  align-items: center;
}

.insight-copy h2 {
  font-size: clamp(2.4rem, 4.2vw, 4.5rem);
}

.insight-copy > p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.85;
}

.insight-copy ul {
  display: grid;
  gap: 14px;
  margin: 36px 0 0;
  padding: 28px 0 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.insight-copy li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--cream);
  font-size: 0.9rem;
}

.insight-copy li span {
  width: 6px;
  height: 6px;
  background: var(--yellow);
}

.analysis-board {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(230, 238, 202, 0.25);
  background: rgba(8, 32, 22, 0.8);
}

.analysis-board header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-light);
}

.analysis-board header span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.82rem;
}

.analysis-board header strong {
  color: var(--yellow);
  font-size: 0.88rem;
}

.radar-wrap {
  position: relative;
  width: min(100%, 430px);
  margin: 36px auto;
  aspect-ratio: 1;
}

.radar-chart {
  position: absolute;
  inset: 10%;
  width: 80%;
}

.radar-grid {
  fill: none;
  stroke: rgba(230, 238, 202, 0.24);
  stroke-width: 1;
}

.radar-value {
  fill: rgba(248, 187, 25, 0.14);
  stroke: var(--yellow);
  stroke-width: 2;
}

.radar-points {
  fill: var(--yellow);
}

.radar-labels span {
  position: absolute;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.68rem;
  white-space: nowrap;
}

.radar-labels span:nth-child(1) { top: 0; left: 50%; transform: translateX(-50%); }
.radar-labels span:nth-child(2) { top: 24%; right: 0; }
.radar-labels span:nth-child(3) { right: 0; bottom: 24%; }
.radar-labels span:nth-child(4) { bottom: 0; left: 50%; transform: translateX(-50%); }
.radar-labels span:nth-child(5) { bottom: 24%; left: 0; }
.radar-labels span:nth-child(6) { top: 24%; left: 0; }

.analysis-summary {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line-light);
}

.analysis-summary span {
  color: var(--yellow);
  font-size: 0.72rem;
  font-weight: 700;
}

.analysis-summary p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.82rem;
}

.zhiyin-workflow {
  background: var(--cream);
}

.zhiyin-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: clamp(64px, 8vw, 96px) 0 0;
  padding: 0;
  border-top: 1px solid rgba(16, 38, 28, 0.22);
  border-bottom: 1px solid rgba(16, 38, 28, 0.22);
  list-style: none;
}

.zhiyin-track li {
  position: relative;
  min-height: 240px;
  padding: 30px 28px;
}

.zhiyin-track li + li {
  border-left: 1px solid rgba(16, 38, 28, 0.22);
}

.zhiyin-track h3 {
  margin-top: 58px;
}

.zhiyin-download {
  padding-block: clamp(80px, 9vw, 120px);
  background: var(--green);
  color: var(--white);
}

.download-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(48px, 9vw, 128px);
  align-items: center;
}

.zhiyin-download h2 {
  max-width: 700px;
}

.zhiyin-download p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.74);
}

.zhiyin-download .product-note {
  margin: 32px 0 0;
  font-size: 0.78rem;
}

.download-actions {
  display: flex;
  gap: 30px;
  align-items: center;
}

.download-actions .app-store-badge {
  width: 156px;
  height: auto;
}

.download-actions figure {
  margin: 0;
  text-align: center;
}

.download-actions figure img {
  width: 132px;
  height: 132px;
  padding: 8px;
  background: var(--white);
}

.download-actions figcaption {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.72rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 32px;
}

.site-footer strong {
  color: var(--white);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.site-footer p {
  margin: 6px 0 0;
}

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}

.footer-legal a {
  border-bottom: 1px solid transparent;
}

.footer-legal a:hover,
.footer-legal a:focus-visible {
  border-color: currentColor;
  color: var(--white);
}

.filing-icp,
.filing-gongan {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.filing-icp img,
.filing-gongan img {
  display: block;
  width: 16px;
  height: 16px;
  max-width: 16px;
  flex: 0 0 16px;
}

@media (max-width: 960px) {
  :root {
    --shell: min(100% - 40px, 760px);
    --header-height: 70px;
  }

  .site-header {
    min-height: var(--header-height);
    padding-inline: 20px;
  }

  .menu-toggle {
    display: block;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    padding: 28px 20px;
    background: var(--paper);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-link {
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
    font-size: 1.15rem;
  }

  .nav-link::after {
    display: none;
  }

  .home-hero {
    min-height: auto;
  }

  .home-hero-grid,
  .company-heading,
  .belief-grid,
  .team-grid,
  .contact-grid,
  .product-hero-heading,
  .product-section-heading,
  .problem-grid,
  .insight-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .home-hero-grid {
    gap: 56px;
  }

  .connection-system {
    width: min(100%, 600px);
  }

  .company-heading,
  .belief-grid,
  .team-grid,
  .contact-grid,
  .product-hero-heading,
  .product-section-heading,
  .problem-grid {
    gap: 44px;
  }

  .insight-grid,
  .download-grid {
    gap: 56px;
  }

  .product-hero-heading .eyebrow {
    grid-column: auto;
    margin-bottom: -18px;
  }

  .qingsails-hero::after {
    top: -120px;
    right: -160px;
    width: 300px;
    height: 300px;
  }

  .buyer-flow,
  .signal-panels,
  .method-track,
  .zhiyin-feature-grid,
  .zhiyin-track {
    grid-template-columns: repeat(2, 1fr);
  }

  .buyer-flow article:nth-child(3),
  .signal-panel:nth-child(3),
  .method-track li:nth-child(3) {
    border-left: 0;
  }

  .zhiyin-feature-grid article:nth-child(3),
  .zhiyin-track li:nth-child(3) {
    border-left: 0;
  }

  .buyer-flow article:nth-child(n + 3),
  .signal-panel:nth-child(3),
  .method-track li:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .zhiyin-feature-grid article:nth-child(n + 3),
  .zhiyin-track li:nth-child(n + 3) {
    border-top: 1px solid rgba(16, 38, 28, 0.22);
  }

  .buyer-flow article:nth-child(2)::after {
    display: none;
  }

  .download-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 32px);
  }

  h1 {
    font-size: clamp(2.6rem, 13vw, 4.2rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3.2rem);
  }

  .section {
    padding-block: 80px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand-copy strong {
    font-size: 0.9rem;
  }

  .brand-copy span {
    font-size: 0.58rem;
  }

  .home-hero {
    padding-block: 72px 64px;
  }

  .home-hero h1 {
    font-size: clamp(2.15rem, 10.75vw, 3.4rem);
  }

  .page-qingsails .product-hero-heading h1 {
    font-size: 2rem;
  }

  .page-zhiyin .product-hero-heading h1 {
    font-size: 2.35rem;
  }

  .product-section-heading h2,
  .problem-grid h2 {
    font-size: 1.75rem;
  }

  .insight-copy h2 {
    font-size: 2rem;
  }

  .team-proof {
    align-items: flex-start;
  }

  .team-proof svg {
    flex: 0 0 auto;
    margin-top: 2px;
  }

  .company-pillars {
    grid-template-columns: 1fr;
    margin-top: 64px;
  }

  .buyer-flow,
  .signal-panels,
  .method-track,
  .zhiyin-feature-grid,
  .zhiyin-track {
    grid-template-columns: 1fr;
  }

  .buyer-flow article,
  .signal-panel,
  .method-track li {
    min-height: 0;
  }

  .zhiyin-feature-grid article,
  .zhiyin-track li {
    min-height: 0;
  }

  .buyer-flow article + article,
  .signal-panel + .signal-panel,
  .method-track li + li {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .zhiyin-feature-grid article + article,
  .zhiyin-track li + li {
    border-top: 1px solid rgba(16, 38, 28, 0.22);
    border-left: 0;
  }

  .buyer-flow article::after {
    display: none;
  }

  .buyer-flow svg {
    margin-block: 32px 20px;
  }

  .signal-panel {
    min-height: 400px;
  }

  .method-track h3 {
    margin-top: 36px;
  }

  .zhiyin-feature-grid svg,
  .zhiyin-track h3 {
    margin-top: 36px;
  }

  .analysis-summary {
    grid-template-columns: 1fr;
  }

  .radar-labels span {
    font-size: 0.58rem;
  }

  .download-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .product-hero-summary .button {
    width: 100%;
  }

  .company-pillars article {
    min-height: 0;
    padding: 28px 0 30px;
  }

  .company-pillars article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .company-pillars span {
    margin-bottom: 32px;
  }

  .principle-list li {
    grid-template-columns: 38px 1fr;
  }

  .principle-list p {
    grid-column: 2;
  }

  .team-statement dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

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

  .footer-legal {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}