/* ========================================
   Homepage content
   ======================================== */

/* Banner CTA: default = pill (图1), hover = text + circle (图2) */
.btn-banner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 168px;
  height: 52px;
  padding: 0 22px 0 28px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--white);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1;
  transition:
    background 0.35s ease,
    color 0.35s ease,
    padding 0.35s ease,
    gap 0.35s ease,
    box-shadow 0.35s ease;
}

.btn-banner__text {
  position: relative;
  z-index: 1;
  transition: color 0.35s ease;
}

.btn-banner__icon {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: transparent;
  flex-shrink: 0;
  transition:
    width 0.35s ease,
    height 0.35s ease,
    background 0.35s ease,
    transform 0.35s ease;
}

.btn-banner__icon img {
  width: 12px;
  height: 12px;
  object-fit: contain;
  transition: transform 0.35s ease;
}

.btn-banner:hover {
  background: var(--white);
  color: var(--text);
  gap: 14px;
  padding: 0 10px 0 28px;
  box-shadow: var(--shadow-banner);
}

.btn-banner:hover .btn-banner__text {
  color: var(--text);
}

.btn-banner:hover .btn-banner__icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
}

.btn-banner:hover .btn-banner__icon img {
  width: 16px;
  height: 16px;
  animation: banner-arrow-nudge 0.9s ease-in-out infinite;
}

@keyframes banner-arrow-nudge {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(3px, -3px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-banner:hover .btn-banner__icon img {
    animation: none;
    transform: translate(2px, -2px);
  }
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 780px;
  height: 100vh;
  max-height: 900px;
  display: flex;
  align-items: center;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    var(--hero-overlay-start) 0%,
    var(--hero-overlay-mid) 45%,
    var(--hero-overlay-end) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: var(--header-h);
  max-width: var(--container);
}

.hero-content h1 {
  font-size: 52px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.hero-content p {
  font-size: 18px;
  color: var(--white-90);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.7;
}

/* ========== Platform Bar ========== */
.platform-bar {
  background: var(--primary);
  height: 135px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
}

.platform-list {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  width: 100%;
  max-width: 1600px;
  height: auto;
  margin: 0 auto;
  padding: 0;
  box-sizing: border-box;
}

.platform-item {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 0;
  height: auto;
  transition: opacity 0.2s;
}

.platform-item:hover {
  opacity: 1;
}

.platform-item img {
  width: auto;
  height: auto;
  max-height: 30px;
  max-width: 100%;
  object-fit: contain;
  display: block;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform;
}

.platform-item:hover img {
  transform: translateY(-6px) scale(1.08);
  animation: platform-logo-bounce 0.7s ease-in-out;
}

@keyframes platform-logo-bounce {
  0% {
    transform: translateY(0) scale(1);
  }
  40% {
    transform: translateY(-8px) scale(1.1);
  }
  70% {
    transform: translateY(-3px) scale(1.05);
  }
  100% {
    transform: translateY(-6px) scale(1.08);
  }
}

@media (prefers-reduced-motion: reduce) {
  .platform-item:hover img {
    animation: none;
    transform: translateY(-4px);
  }
}

/* ========== Solutions ========== */
.solutions {
  padding: clamp(64px, 8vw, 120px) 0 0;
  background: var(--bg);
  position: relative;
  overflow: visible;
}

.solutions-wrap {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 80px);
  box-sizing: border-box;
  position: relative;
  z-index: 2;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 240px;
  row-gap: clamp(40px, 5vw, 64px);
  align-items: start;
}

.solutions-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.solutions-col .solution-card {
  will-change: transform;
  transition: none;
}

.solutions-col .solution-card.reveal-section {
  transition:
    opacity 0.7s cubic-bezier(0.22, 0.7, 0.25, 1) var(--reveal-delay, 0ms),
    transform 0.7s cubic-bezier(0.22, 0.7, 0.25, 1) var(--reveal-delay, 0ms);
}

#solutions .solutions-heading h2.reveal-section,
#solutions .solutions-heading p.reveal-section,
#solutions .solution-card__media.reveal-section,
#solutions .solution-card__body.reveal-section {
  transition:
    opacity 0.75s cubic-bezier(0.22, 0.7, 0.25, 1),
    transform 0.75s cubic-bezier(0.22, 0.7, 0.25, 1);
}

.solutions-col .solution-card + .solution-card {
  margin-top: clamp(56px, 7vw, 120px);
}

.card-title-arrow {
  width: 14px;
  height: 14px;
  object-fit: contain;
  margin-left: 6px;
  vertical-align: middle;
  filter: brightness(0) saturate(100%) invert(36%) sepia(98%) saturate(1800%) hue-rotate(201deg) brightness(98%);
  animation: heading-arrow-nudge 1.6s ease-in-out infinite;
}

.ecosystem {
  /* 与上一板块收紧间距，仅影响本块顶部 */
  padding-top: clamp(20px, 2.5vw, 40px);
}

.ecosystem--zhimaotong {
  padding-top: clamp(4px, 1vw, 16px);
  padding-bottom: clamp(120px, 12vw, 160px);
}

.ecosystem .solution-card__body h3 {
  align-items: center;
}

.ecosystem .showcase-heading {
  margin-bottom: clamp(40px, 5vw, 64px);
}

.ecosystem .showcase-heading h2 {
  font-size: clamp(28px, 2.6vw, 50px);
  font-weight: 400;
}

.ecosystem .showcase-heading p {
  max-width: 34em;
  font-size: clamp(14px, 1.1vw, 16px);
  color: var(--text-secondary);
  line-height: 1.75;
}

/* 智贸通式：左文案选项卡 + 右视觉 */
.showcase {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(40px, 5vw, 80px);
  align-items: center;
}

.showcase-left {
  min-width: 0;
}

.feature-tabs {
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 2.2vw, 32px);
}

.feature-tab {
  position: relative;
  z-index: 1;
  display: block;
  box-sizing: border-box;
  width: 100%;
  margin: 0;
  text-align: left;
  padding: 22px 72px 22px 28px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

.feature-tab:focus {
  outline: none;
}

.feature-tab:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.feature-tab.is-active {
  background: var(--white);
  border-color: var(--border-tab);
  box-shadow: var(--shadow-tab);
}

.feature-tab.is-active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--primary);
}

.feature-tab__label,
.feature-tab__title {
  display: block;
  overflow: hidden;
  font-weight: 400;
  line-height: 1.4;
}

.feature-tab__label {
  height: 1.4em;
  font-size: 18px;
}

.feature-tab__title {
  height: 1.4em;
  margin-top: 8px;
  font-size: clamp(18px, 1.5vw, 30px);
}

.feature-tab__label span,
.feature-tab__title span {
  display: block;
  transition: transform 0.45s ease;
}

.feature-tab__label span:first-child,
.feature-tab__title span:first-child {
  color: #999;
}

.feature-tab__label span:last-child {
  color: var(--primary);
}

.feature-tab__title span:last-child {
  color: var(--text);
}

.feature-tab.is-active .feature-tab__label span,
.feature-tab.is-active .feature-tab__title span {
  transform: translateY(-100%);
}

.feature-tab__badge {
  position: absolute;
  top: 22px;
  right: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 24px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  line-height: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.feature-tab.is-active .feature-tab__badge {
  opacity: 1;
}

.feature-tab__desc {
  display: grid;
  grid-template-rows: 0fr;
  margin-top: 0;
  opacity: 0;
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.7;
  transition:
    grid-template-rows 0.45s ease,
    opacity 0.35s ease,
    margin-top 0.45s ease;
}

.feature-tab__desc > span {
  display: block;
  overflow: hidden;
  min-height: 0;
}

.feature-tab.is-active .feature-tab__desc {
  grid-template-rows: 1fr;
  margin-top: 12px;
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .feature-tab,
  .feature-tab__label span,
  .feature-tab__title span,
  .feature-tab__badge,
  .feature-tab__desc {
    transition: none;
  }
}

.showcase-right {
  min-width: 0;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.showcase-visual {
  width: fit-content;
  max-width: 100%;
}

.showcase-visual.js-media-cursor {
  cursor: none;
}

.showcase-visual img {
  width: auto;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

@media (max-width: 1024px) {
  .showcase {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .showcase-right {
    order: -1;
    justify-content: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .solutions-col .solution-card {
    transform: none !important;
  }

  .card-title-arrow {
    animation: none;
  }
}

.solutions-heading {
  margin-bottom: clamp(96px, 11vw, 158px);
}

.solutions-heading h2 {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  font-size: clamp(28px, 2.6vw, 50px);
  font-weight: 400;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 12px;
}

.solutions-heading__mark {
  width: clamp(16px, 1.4vw, 22px);
  height: clamp(16px, 1.4vw, 22px);
  margin-top: 0.35em;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(36%) sepia(98%) saturate(1800%) hue-rotate(201deg) brightness(98%);
  animation: heading-arrow-nudge 1.6s ease-in-out infinite;
  will-change: transform;
}

@keyframes heading-arrow-nudge {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(6px, -6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .solutions-heading__mark {
    animation: none;
  }
}

.solutions-heading p {
  font-size: clamp(14px, 1.1vw, 18px);
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 34em;
}

/* 首页：全球数字增长平台 + AI与全球增长产品生态 — 整体放大 */
#solutions,
#products {
  padding-top: clamp(80px, 9vw, 140px);
}

#products.ecosystem {
      padding-top: 120px;
}

#solutions .solutions-heading,
#products .solutions-heading {
  margin-bottom: 100px;
}

#solutions .solutions-heading h2,
#products .solutions-heading h2 {
  font-size: clamp(32px, 3.2vw, 58px);
  margin-bottom: 16px;
}

#solutions .solutions-heading p,
#products .solutions-heading p {
  font-size: clamp(15px, 1.25vw, 20px);
  max-width: 36em;
  line-height: 1.75;
}

#solutions .solutions-heading__mark,
#products .solutions-heading__mark {
  width: clamp(18px, 1.6vw, 26px);
  height: clamp(18px, 1.6vw, 26px);
}

#solutions .solutions-grid,
#products .solutions-grid {
  column-gap: clamp(160px, 14vw, 280px);
  row-gap: clamp(48px, 6vw, 80px);
}

#solutions .solution-card__media img,
#products .solution-card__media img {
  width: calc(680px * min(1, 100vw / 1920));
}

#solutions .solution-card__body,
#products .solution-card__body {
  padding-top: clamp(24px, 2.5vw, 36px);
}

#solutions .solution-card__body h3,
#products .solution-card__body h3 {
  font-size: clamp(20px, 1.7vw, 32px);
  margin-bottom: 14px;
}

#solutions .solution-card__body p,
#products .solution-card__body p {
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.8;
  margin-bottom: clamp(24px, 2.5vw, 36px);
}

#products .solutions-col .solution-card + .solution-card {
  margin-top: clamp(72px, 8.5vw, 148px);
}

.solution-card__media {
  width: fit-content;
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  background: transparent;
  position: relative;
}

.solution-card__media.js-media-cursor {
  cursor: none;
}

.solution-card__media.js-media-cursor img {
  pointer-events: none;
  user-select: none;
}

/* 图片悬停不规则圆标 */
.media-cursor {
  position: fixed;
  left: 0;
  top: 0;
  width: 106px;
  height: 106px;
  margin: 0;
  padding: 0;
  border: none;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  overflow: visible;
  transform: translate3d(-50%, -50%, 0) scale(0.4);
  transition:
    opacity 0.4s ease,
    visibility 0.4s ease,
    transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  will-change: transform, left, top;
}

.media-cursor.is-active {
  opacity: 1;
  visibility: visible;
  transform: translate3d(-50%, -50%, 0) scale(1);
}

.media-cursor__blob {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 148%;
  height: 148%;
  margin: 0;
  background: var(--primary);
  border-radius: 58% 42% 55% 45% / 48% 52% 48% 52%;
  transform: translate(-50%, -50%);
  transform-origin: center center;
  animation: media-blob-morph 7.5s ease-in-out infinite;
  will-change: border-radius, transform;
  box-shadow: var(--shadow-cursor);
  transition: none;
}

.media-cursor__text {
  position: relative;
  z-index: 1;
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
  pointer-events: none;
}

@keyframes media-blob-morph {
  0%,
  100% {
    border-radius: 58% 42% 55% 45% / 48% 52% 48% 52%;
  }
  20% {
    border-radius: 32% 68% 40% 60% / 62% 38% 70% 30%;
  }
  40% {
    border-radius: 70% 30% 65% 35% / 35% 65% 40% 60%;
  }
  60% {
    border-radius: 40% 60% 28% 72% / 55% 45% 68% 32%;
  }
  80% {
    border-radius: 65% 35% 72% 28% / 42% 58% 30% 70%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .media-cursor__blob {
    animation: none;
  }
}

@media (max-width: 1024px), (hover: none) {
  .solution-card__media.js-media-cursor {
    cursor: pointer;
  }

  .media-cursor {
    display: none !important;
  }
}

.solution-card__media img {
  display: block;
  width: calc(603px * min(1, 100vw / 1920));
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.solution-card__body {
  padding-top: clamp(20px, 2vw, 28px);
}

.solution-card__body h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  font-size: clamp(18px, 1.5vw, 28px);
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.4;
}

.solution-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 500;
  color: var(--primary);
}

.solution-card__link img {
  width: 12px;
  height: 12px;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(36%) sepia(98%) saturate(1800%) hue-rotate(201deg) brightness(98%);
}

.solution-card__body p {
  font-size: clamp(14px, 1.1vw, 16px);
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: clamp(20px, 2vw, 28px);
}

.btn-apply {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 8px;
  background: var(--primary);
  color: var(--white);
  font-size: 18px;
  font-weight: 400;
  transition: background 0.25s ease, transform 0.25s ease;
}

.btn-apply img {
  width: 14px;
  height: 14px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.btn-apply:hover {
  background: var(--primary-hover);
}

.btn-apply:hover img {
  transform: translate(2px, -2px);
}

/* 底部涌动蓝色色块：波浪形，左淡右实，顶部与白底融合 */
.solutions-surge {
  --surge-h: clamp(180px, 24vw, 300px);
  /* 解除贴底后：蓝顶到智贸通顶边的距离（对齐标注） */
  --surge-follow-span: clamp(72px, 9vw, 110px);
  /* 解除贴底滚出时再上移，固定态仍贴底 */
  --surge-lift: 300px;
  --surge-layout-h: var(--surge-h);
  height: var(--surge-layout-h);
  position: relative;
  z-index: 1;
  pointer-events: none;
  margin-top: clamp(24px, 4vw, 56px);
  overflow: visible;
}

/* 蓝底占位压缩，视觉高度仍用 --surge-h */
#products > .solutions-surge {
  --surge-layout-h: clamp(28px, 3.5vw, 48px);
  margin-top: 0;
}

.solutions-surge__inner {
  position: fixed;
  left: 0;
  right: 0;
  top: auto;
  bottom: auto;
  width: auto;
  height: var(--surge-h);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  z-index: 4;
  transition: opacity 0.25s ease;
  will-change: top;
  /* 顶部柔化 + 左侧更淡 */
  -webkit-mask-image:
    linear-gradient(
      to bottom,
      transparent 0%,
      var(--mask-12) 22%,
      var(--mask-55) 48%,
      var(--black) 78%,
      var(--black) 100%
    ),
    linear-gradient(
      to right,
      var(--mask-12) 0%,
      var(--mask-35) 22%,
      var(--mask-75) 55%,
      var(--black) 100%
    );
  mask-image:
    linear-gradient(
      to bottom,
      transparent 0%,
      var(--mask-12) 22%,
      var(--mask-55) 48%,
      var(--black) 78%,
      var(--black) 100%
    ),
    linear-gradient(
      to right,
      var(--mask-12) 0%,
      var(--mask-35) 22%,
      var(--mask-75) 55%,
      var(--black) 100%
    );
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
}

.solutions-surge__inner::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 60%;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    var(--white) 0%,
    var(--white-90) 30%,
    var(--white-40) 62%,
    var(--white-0) 100%
  );
}

/* 活跃态：始终 fixed，具体 top 由 JS 写入（贴底或跟随滚出） */
.solutions-surge.is-active .solutions-surge__inner,
.solutions-surge.is-pinned .solutions-surge__inner,
.solutions-surge.is-leaving .solutions-surge__inner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: auto;
  width: auto;
  height: var(--surge-h);
  opacity: 1;
  visibility: visible;
  transition: none;
  z-index: 1;
}

.solutions-surge__wave {
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -35%;
  top: auto;
  height: 130%;
  filter: blur(28px);
  will-change: transform, border-radius;
  background: linear-gradient(
    90deg,
    var(--surge-a) 0%,
    var(--surge-b) 28%,
    var(--surge-c) 58%,
    var(--primary) 82%,
    var(--primary-hover) 100%
  );
}

/* 主波浪：接近截图的起伏轮廓 */
.solutions-surge__wave--base {
  border-radius: 48% 52% 0 0 / 70% 85% 0 0;
  opacity: 0.95;
  animation: surge-wave-base 5.5s ease-in-out infinite;
}

.solutions-surge__wave--mid {
  height: 115%;
  bottom: -28%;
  border-radius: 55% 45% 0 0 / 78% 62% 0 0;
  opacity: 0.8;
  filter: blur(36px);
  animation: surge-wave-mid 7s ease-in-out infinite;
}

.solutions-surge__wave--peak {
  width: 75%;
  left: auto;
  right: -14%;
  height: 155%;
  bottom: -42%;
  border-radius: 60% 40% 0 0 / 90% 70% 0 0;
  opacity: 0.95;
  filter: blur(22px);
  background: linear-gradient(
    90deg,
    var(--surge-primary-15) 0%,
    var(--surge-primary-65) 40%,
    var(--primary) 75%,
    var(--primary-deep) 100%
  );
  animation: surge-wave-peak 4.8s ease-in-out infinite;
}

@keyframes surge-wave-base {
  0%,
  100% {
    transform: translate(0, 0) scale(1, 1);
    border-radius: 48% 52% 0 0 / 70% 85% 0 0;
  }
  35% {
    transform: translate(-6%, -22%) scale(1.08, 1.38);
    border-radius: 38% 62% 0 0 / 95% 55% 0 0;
  }
  70% {
    transform: translate(5%, -8%) scale(0.96, 0.82);
    border-radius: 62% 38% 0 0 / 52% 98% 0 0;
  }
}

@keyframes surge-wave-mid {
  0%,
  100% {
    transform: translate(0, 0) scale(1, 1);
    border-radius: 55% 45% 0 0 / 78% 62% 0 0;
  }
  40% {
    transform: translate(8%, -28%) scale(1.1, 1.42);
    border-radius: 32% 68% 0 0 / 48% 98% 0 0;
  }
  75% {
    transform: translate(-9%, -10%) scale(0.94, 0.8);
    border-radius: 68% 32% 0 0 / 100% 48% 0 0;
  }
}

@keyframes surge-wave-peak {
  0%,
  100% {
    transform: translate(0, 0) scale(1, 1);
    border-radius: 60% 40% 0 0 / 90% 70% 0 0;
  }
  50% {
    transform: translate(-10%, -32%) scale(1.2, 1.55);
    border-radius: 40% 60% 0 0 / 62% 100% 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .solutions-surge__wave--base,
  .solutions-surge__wave--mid,
  .solutions-surge__wave--peak {
    animation: none;
  }
}

@media (max-width: 1439px) {
  .solutions-grid {
    column-gap: clamp(48px, 8vw, 240px);
  }
}

@media (max-width: 1024px) {
  .solutions-grid {
    grid-template-columns: 1fr;
    column-gap: 0;
    row-gap: 48px;
  }

  /* 移动端隐藏产品生态底部蓝色固定涌动背景 */
  .solutions-surge,
  #products > .solutions-surge {
    display: none !important;
    height: 0 !important;
    margin: 0 !important;
    overflow: hidden;
  }
}

@media (max-width: 1200px) {
  .solution-card__body h3 {
    align-items: flex-start;
    gap: 6px;
  }
}

/* ========== Products ========== */
.products {
  padding: 80px 0 100px;
  background: var(--bg-soft);
}

.products-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  grid-template-rows: auto auto;
  gap: 28px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.product-card--large {
  grid-row: 1 / span 2;
}

.product-card__media {
  overflow: hidden;
  background: var(--bg-product-media);
}

.product-card--large .product-card__media {
  flex: 1;
  min-height: 420px;
}

.product-card:not(.product-card--large) .product-card__media {
  height: 180px;
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card__body {
  padding: 24px 28px 28px;
}

.product-card__body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.product-card__body p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}

/* ========== About ========== */
.about {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--white);
}

.about-bg {
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
  vertical-align: top;
  pointer-events: none;
  user-select: none;
}

.about-inner {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 80px);
  box-sizing: border-box;
  display: flex;
  align-items: center;
}

.about-content {
  max-width: 600px;
  width: 100%;
  color: var(--text-dark);
}

.about-content h2 {
  font-size: clamp(28px, 2.2vw, 40px);
  font-weight: 400;
  line-height: 1.35;
  color: var(--text-dark);
  margin-bottom: 24px;
}

.about-content p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.85;
}

.about-content p:last-of-type {
  margin-bottom: 28px;
}

/* ========== Partners / Feedback ========== */
.partners {
  padding: clamp(120px, 12vw, 160px) 0 var(--section-space);
  background: var(--white);
}

.partners-wrap {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 80px);
  box-sizing: border-box;
}

.partners-head {
  margin-bottom: clamp(40px, 4vw, 64px);
}

.partners-eyebrow {
  font-size: 18px;
  line-height: 1.4;
  color: var(--text-light);
  margin-bottom: 12px;
}

.partners-head h2 {
  font-size: clamp(28px, 2.5vw, 36px);
  font-weight: 400;
  line-height: 1.35;
  color: var(--text-dark);
}

.partners-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(48px, 8vw, 120px);
  align-items: start;
}

.partners-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  will-change: transform;
}

.partners-col--left,
.partners-col--right {
  position: relative;
}

.partner-item {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border-partner);
}

.partner-item:first-child {
  padding-top: 0;
}

.partner-logo {
  height: 40px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  object-position: left center;
}

.partner-item > p {
  font-size: 16px;
  color: var(--text-dark);
  line-height: 1.85;
}

.partner-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.partner-user img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.partner-user strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
}

.partner-user span {
  display: block;
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.4;
  margin-top: 2px;
}

/* ========== News / Media Center ========== */
.news {
  padding: var(--section-space) 0;
  background: var(--white);
}

.news-wrap {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 80px);
  box-sizing: border-box;
}

.news-head {
  margin-bottom: clamp(40px, 4vw, 56px);
}

.news-eyebrow {
  font-size: 18px;
  line-height: 1.4;
  color: var(--text-light);
 
}

.news-head h2 {
  font-size: clamp(28px, 2.5vw, 40px);
  font-weight: 400;
  line-height: 1.35;
  color: var(--text-dark);
   margin-bottom: 12px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 427px));
  justify-content: space-between;
  row-gap: clamp(24px, 2.2vw, 32px);
  column-gap: 0;
}

/* Homepage media center: show at most 6 cards */
.news-grid > .news-card:nth-child(n + 7) {
  display: none;
}

.news-card {
  width: 100%;
  max-width: 427px;
  background: var(--white);
  border: 1px solid var(--border-news);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-news);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.news-card.reveal-section {
  transition:
    opacity 0.7s cubic-bezier(0.22, 0.7, 0.25, 1) var(--reveal-delay, 0ms),
    transform 0.7s cubic-bezier(0.22, 0.7, 0.25, 1) var(--reveal-delay, 0ms),
    box-shadow 0.25s ease;
}

.news-card.reveal-section.is-inview:hover {
  transform: translate3d(0, -2px, 0);
}

.news-card:hover {
  box-shadow: var(--shadow-news-hover);
  transform: translateY(-2px);
}

.news-card__media {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-news);
}

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

.news-card:hover .news-card__media img {
  transform: scale(1.03);
}

.news-card__body {
  padding: 40px 20px 40px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  flex: 1;
}

.news-card__body h3 {
  font-size: 24px;
  font-weight: 400;
  color: var(--text);
  line-height: 1.45;
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  color: var(--primary);
  font-size: 15px;
  font-weight: 400;
  line-height: 1;
}

.news-link__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.25s ease;
}

.news-link__icon img {
  width: 12px;
  height: 12px;
}

.news-link:hover .news-link__icon {
  background: var(--primary-dark);
}


/* ========================================
   Responsive: 1440
   ======================================== */
@media (max-width: 1440px) {
  .hero {
    min-height: 700px;
    max-height: 820px;
  }

  .hero-content h1 {
    font-size: 46px;
  }
}

/* ========================================
   Responsive: 1024
   ======================================== */
@media (max-width: 1024px) {
  .hero {
    min-height: 600px;
    max-height: none;
    height: auto;
    padding: 140px 0 100px;
  }

  .hero-content h1 {
    font-size: 40px;
  }

  .platform-bar {
    height: auto;
    min-height: 135px;
    padding: clamp(20px, 3vw, 28px) 0;
  }

  .products-grid {
    grid-template-columns: 1fr 1fr;
  }

  .product-card--large {
    grid-row: auto;
    grid-column: 1 / -1;
  }

  .product-card--large .product-card__media {
    min-height: 280px;
  }

  .news-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-content: stretch;
    column-gap: clamp(20px, 3vw, 40px);
  }

  .news-card {
    width: 100%;
  }
}

/* ========================================
   Responsive: 1200
   ======================================== */
@media (max-width: 1200px) {
  .solutions-grid,
  .showcase,
  .partners-columns {
    grid-template-columns: 1fr;
  }

  .solutions-grid {
    column-gap: 0;
    row-gap: 48px;
  }

  .showcase {
    gap: 40px;
  }

  .showcase-right {
    order: -1;
    justify-content: center;
  }

  .showcase-visual img,
  .solution-card__media img {
    width: 100%;
  }

  .platform-bar {
    height: auto;
    min-height: 0;
    padding: 22px 0;
    width: 100%;
    max-width: 100%;
  }

  .platform-list {
    display: flex;
    flex-wrap: nowrap;
    width: 100%;
    max-width: none;
    min-width: 0;
    padding: 0;
    gap: 0;
    justify-content: flex-start;
    align-items: center;
    will-change: transform;
  }

  .platform-bar.is-carousel .platform-list {
    transition: transform 0.55s cubic-bezier(0.22, 0.7, 0.25, 1);
  }

  .platform-item {
    flex: 0 0 33.333%;
    max-width: 33.333%;
    min-width: 0;
    justify-content: center;
    overflow: hidden;
    padding: 0 10px;
    box-sizing: border-box;
  }

  .platform-item.is-clone {
    pointer-events: none;
  }

  .platform-item img {
    width: 100%;
    height: 26px;
    max-width: 100%;
    max-height: 26px;
    object-fit: contain;
    object-position: center;
  }

  .hero {
    padding: 120px 0 80px;
    min-height: 520px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content p {
    font-size: 15px;
  }

  .about {
    display: flex;
    flex-direction: column;
    background: var(--white);
  }

  .about-bg {
    width: 100%;
    height: clamp(200px, 48vw, 280px);
    object-fit: cover;
    object-position: center 30%;
  }

  .about-inner {
    position: relative;
    inset: auto;
    display: block;
    max-width: none;
    margin: 0;
    padding: 28px 20px 8px;
    background: var(--white);
  }

  .about-content {
    max-width: 100%;
  }

  .about-content h2 {
    font-size: 24px;
    margin-bottom: 14px;
    line-height: 1.35;
  }

  .about-content p {
    font-size: 14px;
    margin-bottom: 12px;
    line-height: 1.75;
    color: var(--text-secondary);
  }

  .about-content p:last-of-type {
    margin-bottom: 18px;
  }

  .about-content .text-link {
    font-size: 14px;
  }

  .solutions,
  .products,
  .partners,
  .news {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .solutions {
    padding-bottom: 0;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .partners-columns {
    grid-template-columns: 1fr;
    row-gap: 0;
  }

  .product-card:not(.product-card--large) .product-card__media {
    height: 200px;
  }

  .news-grid {
    grid-template-columns: 1fr;
    justify-content: stretch;
  }

  .news-card {
    max-width: none;
  }

   .solutions-heading{
	   margin-bottom: 40px;
   }
}

/* ========================================
   Responsive: 375
   ======================================== */
@media (max-width: 375px) {
  .hero {
    min-height: 480px;
    padding: 110px 0 64px;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .hero-content p {
    font-size: 14px;
    margin-bottom: 28px;
  }

  .btn-banner {
    height: 48px;
    font-size: 16px;
    min-width: 150px;
  }

  .btn-banner:hover .btn-banner__icon {
    width: 36px;
    height: 36px;
  }

  .about-content h2,
  .solution-text h3 {
    font-size: 24px;
  }

  .news-grid {
    grid-template-columns: 1fr;
    justify-content: stretch;
  }

  .partner-item {
    padding: 32px 0;
    gap: 18px;
  }

  .partners-head {
    margin-bottom: 36px;
  }
}