/* 仅用于 OEM 合作流程：原色调、原文案，上下错落圆形场景图。 */
.oem-process-section {
  position: relative;
  overflow: hidden;
  padding: 100px 0 106px;
}

/* The two cropped roundels match the approved desktop reference. */
.oem-process-section {
  isolation: isolate;
}

.oem-process-section::before,
.oem-process-section::after {
  content: "";
  position: absolute;
  width: 510px;
  height: 510px;
  background: url("../assets/img/heritage-roundel.svg") center / contain no-repeat;
  pointer-events: none;
}

.oem-process-section::before {
  top: -208px;
  left: -188px;
  opacity: .27;
}

.oem-process-section::after {
  bottom: -224px;
  right: -190px;
  opacity: .25;
}

.oem-process-section > .container {
  position: relative;
  z-index: 1;
  width: min(1240px, 92%);
}

.oem-process-section .sec-head {
  margin-bottom: 90px;
}

.oem-process-section .sec-head .kicker {
  color: #d9bd86;
  font: 600 .72rem/1.7 var(--font-sans);
  letter-spacing: .4em;
  margin-bottom: 24px;
}

.oem-process-section .sec-head h2 {
  color: #fffaf1;
  font-size: clamp(2rem, 4.4vw, 3.5rem);
  line-height: 1.4;
  letter-spacing: .09em;
}

.oem-process-section .sec-head h2::after {
  content: "";
  display: block;
  width: 54px;
  height: 1px;
  margin: 30px auto 0;
  background: rgba(201,164,92,.7);
}

.oem-process-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-template-rows: repeat(2, 280px);
  row-gap: 48px;
}

.oem-process-timeline::before {
  content: "";
  position: absolute;
  top: 303px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,164,92,.68) 10%, rgba(201,164,92,.68) 90%, transparent);
}

.oem-process-section .process-scene {
  position: relative;
  text-align: center;
  min-width: 0;
}

.process-scene:nth-child(1) { grid-column: 1; grid-row: 1; }
.process-scene:nth-child(2) { grid-column: 2; grid-row: 2; }
.process-scene:nth-child(3) { grid-column: 3; grid-row: 1; }
.process-scene:nth-child(4) { grid-column: 4; grid-row: 2; }
.process-scene:nth-child(5) { grid-column: 5; grid-row: 1; }
.process-scene:nth-child(6) { grid-column: 6; grid-row: 2; }

.oem-process-section .process-scene::after {
  content: "";
  position: absolute;
  left: calc(50% - 4px);
  width: 8px;
  height: 8px;
  border: 1px solid #c9a45c;
  background: #15408b;
  transform: rotate(45deg);
}

.oem-process-section .process-scene:nth-child(odd)::after { top: 299px; }
.oem-process-section .process-scene:nth-child(even)::after { top: -29px; }

.oem-process-section .process-scene figure {
  position: relative;
  width: min(100% - 12px, 176px);
  aspect-ratio: 1;
  margin: 0 auto 12px;
  border: 1px solid rgba(201,164,92,.7);
  border-radius: 50%;
}

.oem-process-section .process-scene figure::before {
  content: "";
  position: absolute;
  inset: -10px;
  border: 1px dashed rgba(201,164,92,.35);
  border-radius: 50%;
}

.oem-process-section .process-scene img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.oem-process-section .process-number {
  display: block;
  margin-bottom: 6px;
  color: #c9a45c;
  font: 1rem/1.4 var(--font-accent);
  letter-spacing: .22em;
}

.oem-process-section .process-scene h4 {
  margin: 0 0 6px;
  color: #fffaf1;
  font-size: clamp(1.1rem, 1.8vw, 1.45rem);
  line-height: 1.5;
  white-space: nowrap;
}

.oem-process-section .process-scene p {
  margin: 0;
  color: #b9c6dc;
  font-size: clamp(.73rem, 1.05vw, .88rem);
  line-height: 1.8;
  white-space: nowrap;
}

@media (max-width: 960px) {
  .oem-process-section { padding: 70px 0 76px; }
  .oem-process-section .sec-head { margin-bottom: 58px; }
  .oem-process-section .sec-head .kicker { margin-bottom: 16px; }
  .oem-process-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: none;
    gap: 46px 22px;
  }
  .oem-process-timeline::before,
  .oem-process-section .process-scene::after { display: none; }
  .oem-process-section .process-scene { grid-column: auto; grid-row: auto; }
  .oem-process-section .process-scene figure { width: min(100% - 20px, 176px); }
  .oem-process-section .process-scene p { white-space: normal; }
}

@media (max-width: 600px) {
  .oem-process-timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 961px) {
  .oem-process-section { padding: 36px 0 63px; }
  .oem-process-section .sec-head { margin: 0 0 34px; }
  .oem-process-section .sec-head .kicker {
    display: block;
    margin: 0 0 9px;
    font: 600 .72rem/1.7 "Microsoft YaHei", sans-serif;
  }
  .oem-process-section .sec-head h2 {
    margin: 0;
    font: 700 39px/1.4 "Noto Serif SC", "SimSun", serif;
    letter-spacing: .09em;
  }
  .oem-process-section .sec-head h2::after { margin-top: 14px; }
  .oem-process-timeline { grid-template-rows: repeat(2, 224px); row-gap: 48px; }
  .oem-process-timeline::before { top: 248px; }
  .oem-process-section .process-scene:nth-child(odd)::after { top: 244px; }
  .oem-process-section .process-scene:nth-child(even)::after { top: -28px; }
  .oem-process-section .process-scene figure { width: min(100% - 20px, 126px); margin-bottom: 9px; }
  .oem-process-section .process-number { margin-bottom: 3px; font-family: Georgia, serif; }
  .oem-process-section .process-scene h4 { font: 700 19px/1.5 "SimSun", serif; }
}

@media (max-width: 760px) {
  .oem-process-section::before,
  .oem-process-section::after { width: 300px; height: 300px; opacity: .19; }
  .oem-process-section::before { top: -122px; left: -111px; }
  .oem-process-section::after { bottom: -132px; right: -112px; }
}