.page-hero {
  /*min-height: 250px;*/
  padding: 70px 20px 48px;
  text-align: center;
  background: linear-gradient(90deg, rgba(238, 245, 252, 0.7), rgba(255, 255, 255, 0.72)),
    url("../img/strategy/strategy-cooperation.jpg") center/cover no-repeat;
}

.page-hero h1 {
  margin: 0;
  color: var(--brand);
  font-family: "AlibabaPuHuiTi", "Microsoft YaHei", Arial, sans-serif;
  font-size: 32px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0;
}

.section-title h2 {
  margin: 0;
  color: var(--brand);
  font-family: "AlibabaPuHuiTi", "Microsoft YaHei", Arial, sans-serif;
  font-size: 30px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0;
}

.en-title {
  display: block;
  margin-top: 3px;
  color: #526174;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-lead {
  width: min(980px, 100%);
  margin: 28px auto 0;
  color: #202a3b;
  font-size: 18px;
  line-height: 1.9;
}

.section {
  padding: 40px 0;
}

.section.soft {
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.72), rgba(235, 243, 252, 0.95));
}

.section.band {
  background: linear-gradient(90deg, rgba(238, 245, 252, 0.72), rgba(255, 255, 255, 0.82)),
    url("../img/strategy/strategy-cooperation.jpg") center/cover no-repeat;
}

.container {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  width: min(980px, calc(100% - 40px));
}

.section-title {
  margin-bottom: 40px;
  text-align: center;
}

.section-title.left {
  text-align: left;
}

.section-title p,
.body-copy {
  color: #273245;
  font-size: 16px;
}

.body-copy p {
  margin: 0 0 18px;
  text-indent: 2em;
}

.visual-box {
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}

.visual-box img {
  width: 100%;
}

.grid {
  display: grid;
  gap: 28px;
}

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

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}


.strategy-container {
  width: min(1200px, 62.5vw);
}

.strategy-epcos {
  min-height: 505px;
  padding: 42px 0 56px;
  background: url("../img/strategy/strategy-epcos.jpg") center/cover no-repeat;
}

.strategy-hero-copy {
  text-align: center;
}

.strategy-hero-copy h1 {
  margin: 0;
  color: var(--brand);
  font-family: "AlibabaPuHuiTi", "Microsoft YaHei", Arial, sans-serif;
  font-size: 34px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0;
}

.strategy-process-title {
  margin: 13px 0 4px;
  color: var(--brand);
  text-align: center;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
}

.strategy-epcos-lead {
  width: min(920px, calc(100vw - 40px));
  margin: 0 auto;
  color: #121c2c;
  text-align: left;
  text-indent: 2em;
  font-size: 15.5px;
  line-height: 1.5;
}

.strategy-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 5px;
}

.strategy-step h3 {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  margin: 0;
  padding: 7px 22px 7px 14px;
  color: var(--brand);
  text-align: center;
  background: rgba(255, 255, 255, 0.94);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%, 14px 50%);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.18;
}

.strategy-step:first-child h3 {
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%);
}

.strategy-step:last-child h3 {
  color: #fff;
  background: var(--brand);
}

.strategy-step ul {
  margin: 9px 0 0;
  padding: 0;
  list-style: none;
}

.strategy-step li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  margin-top: 8px;
  padding: 6px 8px;
  color: var(--brand);
  text-align: center;
  background: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.25;
}

.strategy-step:last-child li {
  color: #fff;
  background: var(--brand);
}

.strategy-products {
  padding: clamp(50px, 5.73vw, 80px) 0 clamp(50px, 5.94vw, 80px);
}

.strategy-products .section-title {
  margin-bottom: clamp(30px, 2.29vw, 44px);
}

.strategy-matrix {
  --matrix-gap: clamp(14px, 1.25vw, 24px);
  --matrix-total-gap: clamp(70px, 6.25vw, 120px);
  --matrix-node-size: clamp(36px, 3.33vw, 64px);
  --matrix-card-offset: clamp(32px, 2.81vw, 54px);
  --matrix-stem: clamp(14px, 1.15vw, 22px);
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--matrix-gap);
  padding-top: var(--matrix-card-offset);
}

.strategy-matrix::before {
  position: absolute;
  top: 0;
  right: calc((100% - var(--matrix-total-gap)) / 12);
  left: calc((100% - var(--matrix-total-gap)) / 12);
  height: 1px;
  content: "";
  background: var(--brand);
}

.strategy-matrix-col {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: clamp(254px, 22.76vw, 437px);
  padding: clamp(26px, 2.29vw, 44px) 0 0;
  background: #eef0f4;
}

.strategy-matrix-col strong {
  position: absolute;
  top: calc(var(--matrix-node-size) / -2);
  left: 50%;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--matrix-node-size);
  height: var(--matrix-node-size);
  margin-left: calc(var(--matrix-node-size) / -2);
  color: #fff;
  background: var(--brand);
  border-radius: 50%;
  font-size: clamp(18px, 1.67vw, 32px);
}

.strategy-matrix-col strong::before {
  position: absolute;
  bottom: 100%;
  left: 50%;
  width: 1px;
  height: var(--matrix-stem);
  content: "";
  background: var(--brand);
}

.strategy-matrix-col h3 {
  display: flex;
  align-items: center;
  justify-content: center;
  height: clamp(52px, 4.17vw, 80px);
  margin: 0;
  padding: 4px 8px 10px;
  color: #28344a;
  text-align: center;
  font-size: clamp(12px, 1.04vw, 20px);
  font-weight: 600;
  line-height: 1.3;
}

.strategy-matrix-col.is-saas h3 {
  padding-top: 2px;
  padding-bottom: 8px;
  font-size: clamp(11px, 0.94vw, 18px);
  line-height: 1.16;
}

.matrix-items {
  display: grid;
  flex: 1;
  grid-auto-rows: 1fr;
  gap: clamp(4px, 0.47vw, 9px);
}

.matrix-items span {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5px 6px;
  color: #fff;
  text-align: center;
  background: var(--brand);
  font-size: clamp(10px, 0.94vw, 18px);
  line-height: 1.25;
}

.strategy-cooperation {
  padding: 80px 0 70px;
  background: url("../img/strategy/strategy-cooperation.jpg") center/cover no-repeat;
}

.strategy-cooperation .section-title,
.strategy-research .section-title {
  margin-bottom: 18px;
}

.cooperation-headline,
.research-lead {
  margin: 0;
  color: var(--brand);
  text-align: center;
  font-size: 17px;
  font-weight: 600;
}

.cooperation-copy {
  margin: 14px auto 24px;
  color: #26354d;
  font-size: 12px;
  line-height: 1.7;
}

.cooperation-copy p {
  margin: 0 0 10px;
  text-indent: 2em;
}

.cooperation-media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 2.5vw, 48px);
  width: 100%;
  margin-top: clamp(22px, 1.82vw, 35px);
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.08vw, 40px);
}

.partner-chip {
  position: relative;
  aspect-ratio: 165 / 140;
  overflow: hidden;
  border: 1px solid #6f88a8;
  border-radius: 7px;
}

.partner-chip img,
.cooperation-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cooperation-photo {
  aspect-ratio: 576 / 300;
  overflow: hidden;
}

.strategy-research {
  padding: 104px 0 104px;
  background: url("../img/strategy/strategy-research.jpg") center/cover no-repeat;
}

.research-lead {
  margin-bottom: 24px;
  font-size: 15px;
}

.strategy-research .image-strip {
  width: min(800px, 100%);
}


.image-strip {
  width: min(1000px, 100%);
  margin: 0 auto;
}

.image-strip img {
  width: 100%;
}

@media (max-width: 860px) {
  .strategy-container { width: min(800px, calc(100% - 40px)); }
  .strategy-epcos { min-height: auto; padding: 48px 0 58px; }
  .strategy-epcos-lead { width: min(720px, 100%); }
  .section-title h2 { font-size: 28px; }
  .strategy-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strategy-matrix { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .strategy-matrix::before { display: none; }
  .cooperation-media { grid-template-columns: 1fr; width: min(620px, 100%); margin-right: auto; margin-left: auto; }
  .partner-grid { gap: 12px; }
  .partner-chip { min-height: 56px; background-color: rgba(255, 255, 255, 0.55); border: 1px solid rgba(0, 69, 168, 0.22); border-radius: 5px; }
  .cooperation-photo { min-height: 220px; }
}

@media (max-width: 640px) {
  .container,
  .strategy-container { width: min(800px, calc(100% - 28px)); }
  .section-title h2 { font-size: 24px; }
  .section { padding: 40px 0; }
  .strategy-hero-copy h1 { font-size: 28px; }
  .strategy-process-title { font-size: 18px; }
  .strategy-epcos-lead { font-size: 15px; text-indent: 0; }
  .strategy-steps,
  .strategy-matrix { grid-template-columns: 1fr; }
  .strategy-step h3,
  .strategy-step:first-child h3 { clip-path: none; }
  .partner-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}