/* =========================================================
   XINGXUN AI — inner pages
   Shared editorial layouts for the multi-page site
   ========================================================= */

.page-hero {
  position: relative;
  min-height: 90svh;
  display: flex;
  align-items: center;
  padding: 150px 0 100px;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
}

.page-hero .hero-vignette { z-index: -2; }
.page-hero .hero-aurora { z-index: -3; }

.page-hero-grid {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(280px, 0.84fr);
  gap: 60px;
  align-items: center;
}

.page-copy .back-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 42px;
  color: var(--muted-2);
  font-size: 9px;
  letter-spacing: 0.18em;
  transition: color 0.3s ease;
}
.page-copy .back-link span { color: var(--gold); font-size: 14px; }
.page-copy .back-link:hover { color: var(--gold-bright); }

.page-title {
  font-family: var(--serif);
  font-size: clamp(48px, 5.2vw, 82px);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: -0.05em;
  max-width: 900px;
}
.page-title .gold {
  background: linear-gradient(180deg, #f4e5c8, #d0af75 58%, #9d7944);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-title em { font-family: var(--latin); font-style: italic; color: var(--gold-bright); font-weight: 400; }

.page-lead {
  max-width: 560px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 13px;
  line-height: 2;
  letter-spacing: 0.03em;
}

.page-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 46px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.page-meta > div { display: flex; flex-direction: column; gap: 4px; }
.page-meta b {
  font-family: var(--latin);
  font-size: 26px;
  font-weight: 400;
  line-height: 1;
  color: var(--gold-bright);
}
.page-meta small { color: var(--muted-2); font-size: 8px; letter-spacing: 0.12em; }

/* ---------- page visuals ---------- */

.page-visual {
  position: relative;
  min-height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-visual::before {
  content: "";
  position: absolute;
  width: 82%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 160, 44, 0.12), rgba(111, 191, 159, 0.04) 40%, transparent 68%);
  filter: blur(18px);
}

/* orbit */
.pv-orbit {
  position: relative;
  width: min(100%, 430px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
}
.pv-orbit::before {
  content: "";
  position: absolute;
  inset: 12%;
  border: 1px dashed var(--line);
  border-radius: 50%;
}
.pv-ring {
  position: absolute;
  inset: 4%;
  border: 1px solid rgba(111, 191, 159, 0.2);
  border-radius: 50%;
  transform: rotateX(62deg);
  animation: pvSpin 24s linear infinite;
}
.pv-ring.r2 { inset: 15%; border-color: rgba(200, 160, 44, 0.24); animation-duration: 18s; animation-direction: reverse; }
.pv-ring.r3 { inset: 27%; border-color: rgba(244, 239, 226, 0.12); animation-duration: 32s; }
@keyframes pvSpin { to { transform: rotateX(62deg) rotateZ(360deg); } }
.pv-core {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(111, 191, 159, 0.38);
  background: radial-gradient(circle at 40% 30%, rgba(111, 191, 159, 0.18), rgba(8, 36, 28, 0.9));
  box-shadow: 0 0 80px rgba(111, 191, 159, 0.12);
}
.pv-core span { font-family: var(--latin); font-size: 36px; line-height: 1; color: var(--gold-bright); }
.pv-core small { margin-top: 6px; color: var(--muted-2); font-size: 6px; letter-spacing: 0.28em; }
.pv-node {
  position: absolute;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(6, 27, 22, 0.82);
  color: var(--muted);
  font-size: 8.5px;
  letter-spacing: 0.06em;
}
.pv-node.n1 { top: 7%; left: 16%; }
.pv-node.n2 { top: 25%; right: 0; }
.pv-node.n3 { bottom: 20%; right: 4%; }
.pv-node.n4 { bottom: 7%; left: 15%; }

/* code */
.pv-code {
  width: min(100%, 470px);
  border: 1px solid var(--line-strong);
  background: rgba(8, 36, 28, 0.74);
  box-shadow: 0 40px 100px -36px rgba(0, 0, 0, 0.9);
}
.pv-code-top {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
}
.pv-code-top i { width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); }
.pv-code-top span { margin-left: auto; color: var(--muted-2); font-size: 7px; letter-spacing: 0.16em; }
.pv-code-body { padding: 24px 22px; display: grid; gap: 11px; }
.pv-code-body i {
  height: 6px;
  display: block;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(200, 160, 44, 0.36), rgba(111, 191, 159, 0.12));
}
.pv-code-body i:nth-child(2n) { width: 72%; background: rgba(244, 239, 226, 0.1); }
.pv-code-body i:nth-child(3n) { width: 48%; background: rgba(111, 191, 159, 0.24); }
.pv-code-body i:nth-child(5) { width: 84%; }
.pv-code-body i:nth-child(8) { width: 56%; }

/* stacked cards */
.pv-stack { position: relative; width: min(100%, 420px); height: 420px; }
.pv-stack .stack-card {
  position: absolute;
  width: 250px;
  height: 160px;
  padding: 20px;
  border: 1px solid var(--line-strong);
  background: rgba(8, 36, 28, 0.84);
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.85);
}
.pv-stack .stack-card:nth-child(1) { left: 0; top: 12%; transform: rotate(-8deg); }
.pv-stack .stack-card:nth-child(2) { right: 0; top: 30%; transform: rotate(5deg); border-color: rgba(200, 160, 44, 0.4); }
.pv-stack .stack-card:nth-child(3) { left: 14%; bottom: 4%; transform: rotate(-2deg); border-color: rgba(111, 191, 159, 0.32); }
.stack-label { color: var(--muted-2); font-size: 7px; letter-spacing: 0.18em; }
.stack-card b { display: block; margin-top: 13px; font-family: var(--serif); font-size: 24px; font-weight: 400; color: var(--cream); }
.stack-card small { display: block; margin-top: 7px; color: var(--muted); font-size: 9px; line-height: 1.7; }
.stack-line { margin-top: 16px; height: 3px; width: 70%; background: linear-gradient(90deg, var(--gold), transparent); }

/* agent network */
.pv-agent { position: relative; width: min(100%, 430px); height: 430px; }
.pv-agent::before,
.pv-agent::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 74%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 160, 44, 0.4), transparent);
  transform: translate(-50%, -50%) rotate(32deg);
}
.pv-agent::after { transform: translate(-50%, -50%) rotate(-36deg); }
.agent-core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 118px;
  height: 118px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(200, 160, 44, 0.46);
  background: radial-gradient(circle at 38% 32%, rgba(200, 160, 44, 0.22), rgba(8, 36, 28, 0.94));
  box-shadow: 0 0 60px rgba(200, 160, 44, 0.14);
}
.agent-core span { font-family: var(--latin); font-size: 24px; color: var(--gold-bright); }
.agent-core small { color: var(--muted-2); font-size: 6px; letter-spacing: 0.22em; margin-top: 4px; }
.agent-node {
  position: absolute;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  background: rgba(6, 27, 22, 0.84);
  color: var(--cream);
  font-size: 9px;
  letter-spacing: 0.08em;
}
.agent-node span { display: block; color: var(--muted-2); font-size: 7px; letter-spacing: 0.12em; margin-bottom: 4px; }
.agent-node:nth-of-type(1) { left: 3%; top: 15%; }
.agent-node:nth-of-type(2) { right: 3%; top: 13%; }
.agent-node:nth-of-type(3) { left: 2%; bottom: 14%; }
.agent-node:nth-of-type(4) { right: 4%; bottom: 15%; }

/* phone */
.pv-phone {
  width: 250px;
  padding: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 30px;
  background: rgba(8, 36, 28, 0.92);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.9);
  transform: rotate(-5deg);
}
.pv-phone-top { display: flex; align-items: center; gap: 8px; padding: 6px 10px 10px; color: var(--muted-2); font-size: 7px; }
.pv-phone-top i { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.pv-phone-top span { flex: 1; color: var(--muted); }
.pv-phone-screen { padding: 22px 18px; border-radius: 22px; background: rgba(5, 20, 16, 0.9); }
.pv-kicker { color: var(--muted-2); font-size: 6.5px; letter-spacing: 0.24em; }
.pv-phone-screen h4 { font-family: var(--serif); font-size: 24px; font-weight: 400; margin: 5px 0 17px; }
.pv-look { display: flex; gap: 10px; padding: 8px; border: 1px solid var(--line); border-radius: 10px; }
.pv-look-img {
  width: 82px;
  height: 108px;
  flex-shrink: 0;
  border-radius: 7px;
  background: radial-gradient(circle at 50% 24%, rgba(200, 160, 44, 0.36), transparent 38%), linear-gradient(150deg, #24302a, #080f0c);
}
.pv-look-info { display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.pv-look-info span { font-size: 8px; color: var(--cream); }
.pv-look-info small { color: var(--muted-2); font-size: 6.5px; }
.pv-swatches { display: flex; gap: 4px; }
.pv-swatches i { width: 12px; height: 12px; border-radius: 50%; background: var(--gold); }
.pv-swatches i:nth-child(2) { background: #a56d52; }
.pv-swatches i:nth-child(3) { background: #73784f; }
.pv-swatches i:nth-child(4) { background: #ddd5c5; }
.pv-lines { display: grid; gap: 6px; margin-top: 16px; }
.pv-lines i { height: 4px; border-radius: 2px; background: rgba(244, 239, 226, 0.08); }
.pv-lines i:nth-child(2) { width: 70%; }
.pv-lines i:nth-child(3) { width: 45%; }

/* browser */
.pv-browser {
  width: min(100%, 470px);
  border: 1px solid var(--line-strong);
  background: rgba(8, 36, 28, 0.84);
  box-shadow: 0 40px 100px -36px rgba(0, 0, 0, 0.9);
}
.pv-browser-top { display: flex; align-items: center; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.pv-browser-top i { width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); }
.pv-browser-top span { margin-left: 8px; color: var(--muted-2); font-size: 7px; }
.pv-browser-body { display: grid; grid-template-columns: 55px 1fr; min-height: 280px; }
.pv-browser-side { border-right: 1px solid var(--line); padding: 18px 12px; display: grid; align-content: start; gap: 14px; }
.pv-browser-side i { height: 4px; border-radius: 2px; background: var(--line-strong); }
.pv-browser-side i:first-child { background: var(--gold); width: 26px; }
.pv-browser-main { padding: 22px; }
.pv-browser-main > span { color: var(--muted-2); font-size: 7px; letter-spacing: 0.2em; }
.pv-browser-main > b { display: block; font-family: var(--serif); font-size: 22px; font-weight: 400; margin: 5px 0 16px; }
.pv-bars { display: grid; gap: 9px; }
.pv-bars i { display: block; height: 8px; border-radius: 3px; background: linear-gradient(90deg, rgba(200, 160, 44, 0.35), rgba(111, 191, 159, 0.08)); }
.pv-bars i:nth-child(2) { width: 78%; }
.pv-bars i:nth-child(3) { width: 56%; }
.pv-bars i:nth-child(4) { width: 88%; }

/* ---------- inner sections ---------- */

.page-section {
  position: relative;
  padding: clamp(82px, 10vw, 132px) 0;
  border-top: 1px solid var(--line);
}
.page-section.no-border { border-top: 0; }
.page-section.alt { background: rgba(15, 76, 58, 0.16); }

.page-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.36fr);
  gap: 50px;
  align-items: end;
  margin-bottom: 52px;
}
.page-eyebrow { color: var(--gold); font-size: 8px; letter-spacing: 0.3em; margin-bottom: 20px; }
.page-heading {
  font-family: var(--serif);
  font-size: clamp(34px, 4.5vw, 62px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.045em;
}
.page-heading .gold { color: var(--gold-bright); }
.page-head-note { color: var(--muted); font-size: 11px; line-height: 1.9; }

.page-grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 70px;
  align-items: start;
}
.page-text p { color: var(--muted); font-size: 12.5px; line-height: 2.05; max-width: 520px; }
.page-text p + p { margin-top: 18px; }
.page-text strong { color: var(--cream); font-weight: 500; }

.page-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.page-card {
  padding: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(244, 239, 226, 0.035), rgba(244, 239, 226, 0.006));
}
.page-card .card-num { color: var(--gold); font-family: var(--latin); font-size: 16px; }
.page-card h3 {
  margin-top: 30px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
}
.page-card p { margin-top: 13px; color: var(--muted); font-size: 10.5px; line-height: 1.85; }
.page-card .small-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 20px; }
.page-card .small-tags span { color: var(--muted-2); font-size: 7px; border: 1px solid var(--line); border-radius: 999px; padding: 4px 8px; }

.page-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}
.page-step { padding: 26px 22px 0 0; border-right: 1px solid var(--line); }
.page-step:last-child { border-right: 0; padding-right: 0; }
.page-step span { color: var(--gold); font-family: var(--latin); font-size: 14px; }
.page-step b { display: block; margin-top: 18px; color: var(--cream); font-size: 12px; font-weight: 500; letter-spacing: 0.06em; }
.page-step p { margin-top: 8px; color: var(--muted); font-size: 10px; line-height: 1.8; }

.page-quote {
  max-width: 1000px;
  font-family: var(--serif);
  font-size: clamp(30px, 4.2vw, 58px);
  line-height: 1.35;
  letter-spacing: -0.04em;
  color: var(--cream);
}
.page-quote .gold { color: var(--gold-bright); }

.page-stat-band {
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-stat-band > div { display: flex; flex-direction: column; gap: 5px; }
.page-stat-band b { font-family: var(--latin); font-size: 38px; font-weight: 400; line-height: 1; color: var(--gold-bright); }
.page-stat-band b span { font-family: var(--sans); font-size: 12px; color: var(--gold); }
.page-stat-band small { color: var(--muted-2); font-size: 9px; letter-spacing: 0.06em; }

.page-list { border-top: 1px solid var(--line); }
.page-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
}
.page-list li span { color: var(--gold); font-family: var(--latin); font-size: 12px; }

/* product entries on zhiji pages */
.page-entries {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
  margin-top: 38px;
}
.page-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  padding: 18px;
  background: var(--ink-2);
  transition: background 0.35s ease;
}
.page-entry:hover { background: rgba(15, 76, 58, 0.5); }
.page-entry .entry-meta { grid-column: 1 / -1; color: var(--muted-2); font-size: 7px; letter-spacing: 0.2em; }
.page-entry b { font-family: var(--serif); font-size: 21px; font-weight: 400; }
.page-entry small { color: var(--muted); font-size: 9px; }
.page-entry i { grid-column: 2; grid-row: 2 / span 2; align-self: center; color: var(--gold); font-style: normal; }
.page-entry:hover i { color: var(--gold-bright); }

/* CTA */
.page-cta {
  position: relative;
  overflow: hidden;
  padding: clamp(90px, 12vw, 150px) 0;
  background:
    radial-gradient(ellipse 55% 70% at 22% 40%, rgba(200, 160, 44, 0.12), transparent 68%),
    radial-gradient(ellipse 50% 60% at 80% 50%, rgba(111, 191, 159, 0.08), transparent 70%),
    var(--ink-2);
  border-top: 1px solid var(--line);
}
.page-cta .cta-title {
  font-family: var(--serif);
  font-size: clamp(38px, 5.8vw, 84px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.05em;
  max-width: 900px;
}
.page-cta .cta-title span { color: var(--gold-bright); }
.page-cta .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.page-cta .cta-note { margin-top: 20px; color: var(--muted-2); font-size: 9px; letter-spacing: 0.06em; }

/* contact block */
.page-contact-card {
  border: 1px solid var(--line);
  padding: 8px 26px 24px;
  background: linear-gradient(160deg, rgba(244, 239, 226, 0.04), rgba(244, 239, 226, 0.008));
}
.page-contact-row { display: grid; grid-template-columns: 92px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.page-contact-row span { color: var(--muted-2); font-size: 8px; letter-spacing: 0.18em; }
.page-contact-row p { color: var(--cream); font-size: 12px; line-height: 1.8; }
.page-contact-row a { display: block; }
.page-contact-row a + a { color: var(--muted); margin-top: 2px; }

/* about page values */
.about-values { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.value-card { border: 1px solid var(--line); padding: 24px; }
.value-card span { color: var(--gold); font-family: var(--latin); font-size: 13px; }
.value-card h3 { margin-top: 20px; font-family: var(--serif); font-size: 23px; font-weight: 400; }
.value-card p { margin-top: 10px; color: var(--muted); font-size: 10.5px; line-height: 1.85; }

@media (max-width: 1080px) {
  .page-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .page-visual { min-height: 380px; order: 2; }
  .page-hero { min-height: auto; padding-top: 130px; }
  .page-cards { grid-template-columns: 1fr 1fr; }
  .page-steps { grid-template-columns: 1fr 1fr; }
  .page-step:nth-child(2) { border-right: 0; }
  .page-step:nth-child(n+3) { border-top: 1px solid var(--line); padding-top: 24px; }
  .page-grid-2 { grid-template-columns: 1fr; gap: 34px; }
  .page-head { grid-template-columns: 1fr; gap: 18px; }
  .page-entries { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .page-hero { padding: 112px 0 70px; }
  .page-copy .back-link { margin-bottom: 30px; }
  .page-title { font-size: clamp(42px, 12vw, 62px); }
  .page-lead { font-size: 11.5px; margin-top: 22px; }
  .page-actions { flex-direction: column; align-items: stretch; }
  .page-actions .btn { width: 100%; }
  .page-meta { gap: 18px; }
  .page-meta b { font-size: 22px; }
  .page-visual { min-height: 330px; transform: scale(0.92); }
  .page-cards { grid-template-columns: 1fr; }
  .page-steps { grid-template-columns: 1fr; }
  .page-step, .page-step:nth-child(2) { border-right: 0; border-top: 1px solid var(--line); padding: 20px 0 0; }
  .page-step:first-child { border-top: 0; }
  .page-cta .cta-title { font-size: clamp(34px, 10vw, 52px); }
  .page-contact-row { grid-template-columns: 76px 1fr; gap: 10px; }
  .about-values { grid-template-columns: 1fr; }
}