/* 解决方案二级详情 - sol_erdetails.html (设计基准 1920px) */

:root {
  --sol-er-primary: #14126f;
  --sol-er-accent: #1bb8ce;
  --sol-er-text: #333333;
  --sol-er-text-muted: #666666;
  --sol-er-text-light: #999999;
  --sol-er-bg-muted: #f5f5f5;
  --sol-er-font-hero: clamp(32px, 3.125vw, 60px);
  --sol-er-font-section: clamp(24px, 2.083vw, 40px);
  --sol-er-font-block: clamp(20px, 1.458vw, 28px);
}

.site-main--sol-er {
  min-height: auto;
}

/* ========== Hero ========== */

.sol-er-hero {
  position: relative;
  min-height: clamp(320px, 33.854vw, 650px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #0a1a4a;
}

.sol-er-hero__bg {
  position: absolute;
  inset: 0;
}

.sol-er-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sol-er-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(10, 26, 74, 0.45) 0%,
    rgba(10, 26, 74, 0.12) 55%,
    rgba(10, 26, 74, 0.04) 100%
  );
}

.sol-er-hero__inner {
  position: relative;
  z-index: 1;
  padding: clamp(48px, 5.208vw, 100px) 0;
}

.sol-er-hero__title {
  margin: 0;
  font-size: var(--sol-er-font-hero);
  font-weight: 600;
  line-height: 1.2;
  color: #ffffff;
}

.sol-er-hero__desc {
  margin: clamp(16px, 1.458vw, 28px) 0 0;
  max-width: 28em;
  font-size: clamp(14px, 0.9375vw, 18px);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
}

.sol-er-hero__scroll {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: clamp(48px, 3.125vw, 60px);
  height: clamp(48px, 3.125vw, 60px);
  margin-top: clamp(28px, 2.5vw, 48px);
  color: var(--sol-er-primary);
  background: #ffffff;
  border: none;
  border-radius: 50%;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.sol-er-hero__scroll:hover {
  transform: translateY(3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.14);
}

.sol-er-hero__scroll-icon {
  display: block;
  width: clamp(14px, 0.885vw, 17px);
  height: clamp(14px, 0.885vw, 17px);
}

/* ========== Breadcrumb + Intro ========== */

.sol-er-intro {
  padding: clamp(32px, 2.917vw, 56px) 0 clamp(56px, 5.208vw, 100px);
  background: #ffffff;
}

.sol-er-breadcrumb {
  margin: 0 0 clamp(32px, 2.917vw, 56px);
  font-size: clamp(13px, 0.8333vw, 16px);
  line-height: 1.6;
  color: var(--sol-er-text-light);
}

.sol-er-breadcrumb a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.sol-er-breadcrumb a:hover {
  color: var(--sol-er-accent);
}

.sol-er-breadcrumb__sep {
  margin: 0 0.45em;
}

.sol-er-intro__title {
  margin: 0 0 clamp(24px, 2.083vw, 40px);
  font-size: var(--sol-er-font-section);
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  color: var(--sol-er-text);
}

.sol-er-intro__content {
  max-width: 52em;
  margin: 0 auto;
}

.sol-er-intro__content p {
  margin: 0;
  font-size: clamp(14px, 0.9375vw, 18px);
  line-height: 1.9;
  color: var(--sol-er-text-muted);
}

.sol-er-intro__content p + p {
  margin-top: clamp(16px, 1.25vw, 24px);
}

/* ========== Content Blocks ========== */

.sol-er-block--split {
  padding: 0;
  background: #ffffff;
}

.sol-er-block__split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: clamp(360px, 28.646vw, 550px);
}

.sol-er-block__col--text {
  display: flex;
  align-items: center;
  background: #ffffff;
}

.sol-er-block--muted .sol-er-block__col--text {
  background: var(--sol-er-bg-muted);
}

.sol-er-block--split:not(.sol-er-block--split-reverse) .sol-er-block__col--text {
  justify-content: flex-start;
  padding: clamp(48px, 5.208vw, 100px) clamp(32px, 3.125vw, 60px)
    clamp(48px, 5.208vw, 100px) clamp(24px, 8.333vw, 160px);
}

.sol-er-block--split-reverse .sol-er-block__col--text {
  justify-content: flex-start;
  padding: clamp(48px, 5.208vw, 100px) clamp(24px, 8.333vw, 160px)
    clamp(48px, 5.208vw, 100px) clamp(32px, 3.125vw, 60px);
}

.sol-er-block__content {
  width: 100%;
  max-width: clamp(320px, 31.25vw, 600px);
}

.sol-er-block__title {
  margin: 0 0 clamp(20px, 1.667vw, 32px);
  font-size: var(--sol-er-font-block);
  font-weight: 600;
  line-height: 1.35;
  color: var(--sol-er-text);
}

.sol-er-block__content p {
  margin: 0;
  font-size: clamp(14px, 0.9375vw, 18px);
  line-height: 1.85;
  color: var(--sol-er-text-muted);
}

.sol-er-block__content p + p {
  margin-top: clamp(14px, 1.042vw, 20px);
}

.sol-er-block__col--media {
  position: relative;
  min-height: clamp(360px, 28.646vw, 550px);
  overflow: hidden;
}

.sol-er-block__col--media img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sol-er-block--muted {
  background: var(--sol-er-bg-muted);
}

/* ========== Application Grid ========== */

.sol-er-apps {
  padding: clamp(56px, 5.208vw, 100px) 0 clamp(64px, 5.729vw, 110px);
  background: #ffffff;
}

.sol-er-apps__title {
  margin: 0 0 clamp(32px, 2.917vw, 56px);
  font-size: var(--sol-er-font-section);
  font-weight: 600;
  line-height: 1.3;
  color: var(--sol-er-text);
}

.sol-er-apps__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  column-gap: clamp(16px, 1.667vw, 32px);
}

.sol-er-apps__item {
  position: relative;
  z-index: 0;
  display: flex;
  align-items: center;
  gap: clamp(8px, 0.625vw, 12px);
  min-height: clamp(56px, 3.75vw, 72px);
  padding: clamp(12px, 0.9375vw, 18px);
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid #eeeeee;
  border-radius: clamp(8px, 0.625vw, 12px);
  overflow: hidden;
  transition:
    color 0.2s ease,
    border-color 0.2s ease;
}

.sol-er-apps__item.is-active,
.sol-er-apps__item:hover {
  z-index: 1;
  border-bottom-color: transparent;
}

.sol-er-apps__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.sol-er-apps__item.is-active .sol-er-apps__bg,
.sol-er-apps__item:hover .sol-er-apps__bg {
  opacity: 1;
}

.sol-er-apps__icon {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: clamp(20px, 1.25vw, 24px);
  height: clamp(20px, 1.25vw, 24px);
  object-fit: contain;
}

.sol-er-apps__label {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 0;
  font-size: clamp(13px, 0.8333vw, 16px);
  line-height: 1.4;
  color: var(--sol-er-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sol-er-apps__arrow {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: clamp(20px, 1.25vw, 26px);
  height: auto;
}

.sol-er-apps__arrow--active {
  display: none;
}

.sol-er-apps__item.is-active .sol-er-apps__label,
.sol-er-apps__item:hover .sol-er-apps__label {
  color: #ffffff;
}

.sol-er-apps__item.is-active .sol-er-apps__arrow--default,
.sol-er-apps__item:hover .sol-er-apps__arrow--default {
  display: none;
}

.sol-er-apps__item.is-active .sol-er-apps__arrow--active,
.sol-er-apps__item:hover .sol-er-apps__arrow--active {
  display: block;
}

/* ========== Other Solutions ========== */

.sol-er-other {
  padding: clamp(56px, 5.208vw, 100px) 0 clamp(64px, 5.729vw, 110px);
  background: var(--sol-er-bg-muted);
}

.sol-er-other__title {
  margin: 0 0 clamp(32px, 2.917vw, 56px);
  font-size: var(--sol-er-font-section);
  font-weight: 600;
  line-height: 1.3;
  color: var(--sol-er-text);
}

.sol-er-other__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 1.667vw, 32px);
}

.sol-er-other-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
  background: #ffffff;
  transition: box-shadow 0.25s ease;
}

.sol-er-other-card:hover {
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

.sol-er-other-card__media {
  overflow: hidden;
  aspect-ratio: 756 / 460;
}

.sol-er-other-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.sol-er-other-card:hover .sol-er-other-card__media img {
  transform: scale(1.03);
}

.sol-er-other-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: clamp(16px, 1.25vw, 24px);
}

.sol-er-other-card__name {
  margin: 0;
  font-size: clamp(16px, 1.042vw, 20px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--sol-er-text);
}

.sol-er-other-card__desc {
  display: -webkit-box;
  flex: 1;
  margin: clamp(10px, 0.833vw, 16px) 0 0;
  overflow: hidden;
  font-size: clamp(13px, 0.8333vw, 16px);
  line-height: 1.75;
  color: var(--sol-er-text-muted);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.sol-er-other-card__arrow {
  display: block;
  margin-top: clamp(16px, 1.25vw, 24px);
}

.sol-er-other-card__arrow img {
  display: block;
  width: clamp(20px, 1.25vw, 26px);
  height: auto;
}

.sol-er-apps__toggle {
  display: none;
}

/* ========== Responsive ========== */

@media (max-width: 1200px) {
  .sol-er-apps__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  .sol-er-block__split {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .sol-er-block__col--text {
    padding: clamp(40px, 8vw, 56px) clamp(20px, 5vw, 32px) !important;
  }

  .sol-er-block__col--media {
    min-height: clamp(240px, 56vw, 360px);
  }

  .sol-er-block__content {
    max-width: none;
  }

  .sol-er-apps {
    padding: clamp(40px, 8vw, 56px) 0 clamp(48px, 10vw, 64px);
  }

  .sol-er-apps__title {
    margin-bottom: clamp(20px, 5vw, 28px);
  }

  .sol-er-apps__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 10px;
    row-gap: 10px;
  }

  .sol-er-apps__grid.is-collapsed .sol-er-apps__item:nth-child(n + 9) {
    display: none;
  }

  .sol-er-apps__item {
    min-height: 44px;
    padding: 10px;
    gap: 6px;
    border-bottom: none;
    background: #f7f8fa;
    border-radius: 8px;
  }

  .sol-er-apps__icon {
    width: 18px;
    height: 18px;
  }

  .sol-er-apps__label {
    font-size: 13px;
    line-height: 1.35;
    white-space: normal;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
  }

  .sol-er-apps__arrow {
    width: 14px;
  }

  .sol-er-apps__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    margin-top: 16px;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--sol-er-primary);
    background: #f5f5f5;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    transition:
      background 0.2s ease,
      border-color 0.2s ease;
  }

  .sol-er-apps__toggle:hover,
  .sol-er-apps__toggle:focus-visible {
    background: #eef2f6;
    border-color: #dddddd;
  }

  .sol-er-apps__toggle-icon {
    width: 7px;
    height: 7px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .sol-er-apps__toggle[aria-expanded="true"] .sol-er-apps__toggle-icon {
    transform: rotate(-135deg);
  }

  .sol-er-apps__toggle.is-hidden {
    display: none;
  }

  .sol-er-other__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .sol-er-apps__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sol-er-apps__label {
    font-size: 12px;
  }
}