:root {
  --ghis-navy: #07016b;
  --ghis-orange: #f06f25;
  --ghis-card-bg: #f9f9f9;
  --ghis-band-a: #eaeaea;
  --ghis-band-b: #f4f4f4;
}

body {
  color: #07016b;
}

.sponsor-card {
  cursor: pointer;
  user-select: none;
}

.sponsor-hero-section {
  position: relative;
  margin-top: 68px;
  height: 440px;
  color: #ffffff;
}

.hero-bg {
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}

.hero-overlay {
  display: none;
}

.hero-content {
  position: absolute;
  left: 50%;
  top: 128px;
  width: min(1670px, 87vw);
  transform: translateX(-50%);
  text-align: center;
}

.sponsor-hero-section .hero-title {
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.28);
}

.intro-copy,
.tier-title,
.sponsor-name,
.benefits-heading,
.benefit-title,
.benefit-copy {
  display: block;
}

.download-action {
  width: clamp(250px, 18.4vw, 354px);
  height: var(--ghis-shared-button-height);
  min-height: 0;
  margin: 38px auto 0;
  background: var(--ghis-orange);
  border: 2px solid var(--ghis-orange);
  font-weight: 500;
  white-space: nowrap;
}

.sponsor-intro-section {
            padding: 42px 0;
  display: grid;
  align-items: center;
  background: #ffffff;
}

.intro-copy {
  color: #202020;
  font-size: clamp(20px, 1.3vw, 25px);
  line-height: 1.41;
}

.sponsor-tier-section {
  background: #ffffff;
}

.tier-band {
  min-height: 440px;
  padding: 78px 0 58px;
}

.tier-band:nth-child(odd) {
  background: var(--ghis-band-a);
}

.tier-band:nth-child(even) {
  background: var(--ghis-band-b);
}

.tier-inner {
  width: var(--main-content-width);
  margin: 0 auto;
}

.tier-title {
  margin-bottom: 16px;
  color: var(--ghis-navy);
  font-size: 30px;
  line-height: 1.05;
  font-weight: 400;
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(2, 336px);
  gap: 28px 16px;
}

.sponsor-grid.count-2 {
  grid-template-columns: repeat(2, 336px);
}

.sponsor-card {
  overflow: hidden;
  height: 211px;
  display: grid;
  grid-template-rows: 145px 66px;
  background: var(--ghis-card-bg);
  border: 1.6px solid var(--ghis-navy);
  border-radius: 12px;
}

.sponsor-logo {
  display: grid;
  place-items: center;
  padding: 24px 34px;
  background: var(--ghis-card-bg);
}

.sponsor-logo img {
  display: block;
  width: 100%;
  max-width: 100%;
  max-height: 76px;
  object-fit: contain;
}

.sponsor-name {
  display: grid;
  place-items: center;
  min-height: 66px;
  color: #ffffff;
  background: var(--ghis-navy);
  font-size: 25px;
  line-height: 1;
  font-weight: 500;
}

.sponsor-benefits-section {
  min-height: 934px;
  padding: 45px 0 43px;
  color: #000000;
  background: var(--ghis-navy);
}

.benefits-heading {
  color: #ffffff;
  text-align: center;
  font-size: 40px;
  line-height: 1.2;
  font-weight: 400;
}

.benefits-grid {
  width: var(--main-content-width);
  margin: 58px auto 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px 43px;
}

.benefit-item {
  min-height: 292px;
  padding: 24px 22px 28px;
  color: #000000;
  background: #ffffff;
  border-radius: 10px;
}

.benefit-title {
  color: #000000;
  font-size: 27px;
  line-height: 1.12;
  font-weight: 400;
}

.benefit-copy {
  margin-top: 32px;
  color: #202020;
  font-size: 18px;
  line-height: 1.22;
}

.benefit-copy + .benefit-copy {
  margin-top: 22px;
}

.learn-action {
  width: 413px;
  min-height: 43px;
  margin: 88px auto 0;
  background: #ef7a12;
  font-size: 20px;
  font-weight: var(--ghis-shared-button-weight);
}

@media (max-width: 1399px) {
  .tier-inner {
    width: var(--main-content-width);
  }
}

@media (max-width: 1199px) {
  .tier-inner {
    width: calc(100% - 40px);
  }

  .sponsor-grid,
  .sponsor-grid.count-2 {
    grid-template-columns: repeat(2, minmax(0, 336px));
  }

  .sponsor-benefits-section {
    min-height: auto;
    padding: 42px 0 54px;
  }

  .benefits-grid {
    width: calc(100% - 80px);
    gap: 32px;
  }

  .learn-action {
    margin-top: 54px;
  }
}

@media (max-width: 750px) {
  .sponsor-hero-section {
    height: 330px;
  }

  .hero-content {
    top: 88px;
    width: calc(100% - 28px);
  }

  .download-action {
    min-width: 170px;
    width: clamp(170px, 46vw, 354px);
    height: var(--ghis-shared-button-height);
    min-height: 0;
    border-width: 1px;
    font-size: var(--ghis-shared-button-font);
  }

  .sponsor-intro-section {
    height: auto;
    padding: 42px 0;
  }

  .intro-copy {
    font-size: 15px;
  }

  .tier-band {
    min-height: 0;
    padding: 42px 0 48px;
  }

  .tier-title {
    font-size: 22px;
  }

  .sponsor-grid,
  .sponsor-grid.count-2 {
    grid-template-columns: 1fr;
  }

  .sponsor-card {
    height: 190px;
    grid-template-rows: 130px 60px;
  }

  .sponsor-name {
    font-size: 22px;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
    width: calc(100% - 28px);
    gap: 24px;
    margin-top: 32px;
  }

  .benefits-heading {
    font-size: 30px;
  }

  .benefit-item {
    min-height: 0;
    padding: 22px 20px 26px;
  }

  .benefit-title {
    font-size: 22px;
  }

  .benefit-copy {
    margin-top: 20px;
    font-size: 15px;
  }

  .benefit-copy + .benefit-copy {
    margin-top: 18px;
  }

  .learn-action {
    width: min(100%, 360px);
    margin-top: 48px;
    min-height: 46px;
    font-size: 14px;
  }

}

@media (min-width: 1200px) and (max-width: 1536px) {
  .tier-inner {
    width: var(--main-content-width);
  }

  .sponsor-grid,
  .sponsor-grid.count-2 {
    gap: 24px 14px;
  }

  .sponsor-logo {
    padding: 20px 24px;
  }

  .benefits-grid {
    width: var(--main-content-width);
    gap: 28px 30px;
  }

  .benefit-item {
    min-height: 0;
    padding: 22px 18px 24px;
  }

  .benefit-copy {
    margin-top: 24px;
  }

  .learn-action {
    margin-top: 60px;
  }

}

/* 内容页正文文案字号统一调整。 */
.intro-copy {
  font-size: 20px;
  font-weight: 400;
}

.benefit-copy {
  font-size: 20px;
  font-weight: 400;
}

.download-action:visited,
.download-action:active,
.download-action:focus {
  text-decoration: none!important;
  outline: 0!important; /* 移除聚焦高亮边框 */
  color: white!important;
}