/* ======================== */
/* Product 页面样式         */
/* ======================== */
/* --- Banner --- */
.product-banner {
  position: relative;
  width: 100%;
  height: 620px;
  overflow: hidden;
}
.product-banner__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.product-banner__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #112547 0%, rgba(17, 37, 71, 0.6) 50%, rgba(17, 37, 71, 0) 100%);
  z-index: 1;
}
.product-banner__watermark {
  position: absolute;
  bottom: 108px;
  right: 15%;
  z-index: 1;
  pointer-events: none;
}
.product-banner__watermark img {
  width: 100%;
  max-width: 320px;
  height: auto;
}
@media (max-width: 768px) {
  .product-banner__watermark {
    right: 5%;
    max-width: 200px;
    opacity: 0.5;
  }
}
.product-banner__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  padding-bottom: 108px;
}
.product-banner__title {
  font-weight: 700;
  font-size: 86px;
  line-height: 1;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 30px;
}
.product-banner__desc {
  font-size: 14px;
  line-height: 2;
  color: rgba(255, 255, 255, 0.8);
  max-width: 1000px;
  letter-spacing: 0.5px;
}
/* --- 产品列表 --- */
.product-list {
  padding: 80px 0;
  background: #fff;
}
.product-list__inner {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
}
/* --- 分类侧边栏 --- */
.product-list__sidebar {
  position: sticky;
  top: calc(var(--header-h) + 20px);
  align-self: start;
  background-color: #f8f8f8;
  padding: 10px;
  border-radius: 20px;
}
.product-list__sidebar-title {
  display: flex;
  align-items: center;
  padding: 20px;
  font-weight: 500;
  font-size: 16px;
  color: var(--color-grey-600);
  text-transform: uppercase;
}
.product-list__categories {
  list-style: none;
  padding: 0 20px;
}
.product-list__cat {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-grey-600);
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 20px;
  transition: all var(--transition-base);
  margin-bottom: 4px;
  line-height: 1.4;
}
.product-list__cat:hover,
.product-list__cat--active {
  color: #fff;
  background: var(--color-primary);
}
/* --- 产品网格 --- */
.product-list__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
  align-content: start;
  align-self: start;
}
.product-card {
  position: relative;
  background: linear-gradient(0deg, #f8f8f8 0%, #f8f8f8 100%), linear-gradient(180deg, rgba(46, 115, 243, 0.57) 0%, rgba(228, 235, 248, 0.92) 100%);
  background-blend-mode: normal, overlay;
  box-shadow: 0px 1px 39px rgba(0, 0, 0, 0.02);
  border-radius: 20px;
  overflow: hidden;
  border: none;
  transition: transform var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
  height: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
}
.product-card:hover {
  transform: translateY(-6px);
  background: #fff;
  box-shadow: 0 20px 40px rgba(14, 27, 49, 0.15);
  margin-bottom: -96px;
  z-index: 10;
}
.product-card__img {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  overflow: hidden;
  background: #fff;
  flex-shrink: 0;
}
.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card__img img {
  transform: scale(1.05);
}
.product-card__info {
  padding: 24px 20px 0;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.product-card__name {
  font-weight: 500;
  font-size: 16px;
  color: #333333;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.product-card__cat {
  font-weight: 400;
  font-size: 14px;
  color: #666666;
  text-transform: uppercase;
  margin-bottom: auto;
}
.product-card__action {
  display: none;
  padding: 0;
  transition: none;
}
.product-card:hover .product-card__action {
  display: block;
  padding: 24px 10px 10px;
}
.product-card__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 62px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 500;
  font-size: 20px;
  text-transform: uppercase;
  border-radius: 20px;
  transition: background var(--transition-fast);
}
.product-card__btn:hover {
  background: var(--color-accent);
}
/* --- 加载更多 --- */
.product-list__more {
  grid-column: 2;
  text-align: center;
  padding: 40px 0 0;
  position: relative;
  z-index: 1;
}
.product-list__more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 260px;
  height: 62px;
  border: 1px solid #d9d9d9;
  border-radius: 20px;
  background: #fff;
  font-size: 16px;
  color: var(--color-grey-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.product-list__more-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

@media (max-width: 1024px) {
  /* Banner缩放 */
  .product-banner {
    height: 450px;
  }
  .product-banner__title {
    font-size: 56px;
  }
  .product-banner__content {
    padding-bottom: 60px;
  }
  /* 产品列表 */
  .product-list__inner {
    grid-template-columns: 240px 1fr;
    gap: 20px;
  }
  .product-list__cat {
    padding: 10px 20px;
  }
  .product-list__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  /* 小屏禁用 hover 位移和负 margin */
  .product-card:hover {
    margin-bottom: 0;
    transform: none;
  }
  .product-card__img {
    aspect-ratio: 4 / 3;
  }
  .product-card__info {
    padding: 16px 12px 0;
  }
  .product-card__name {
    font-size: 14px;
    margin-bottom: 8px;
  }
  .product-card__cat {
    font-size: 12px;
  }
  /* 小屏action始终显示，避免点击展开影响其他卡片 */
  .product-card__action {
    display: block;
    padding: 16px 10px 10px;
  }
  .product-card:hover .product-card__action {
    display: block;
    padding: 16px 10px 10px;
  }
  .product-card__btn {
    height: 50px;
    font-size: 16px;
  }
}
@media (max-width: 768px) {
  /* Banner继续缩放 */
  .product-banner {
    height: 360px;
  }
  .product-banner__title {
    font-size: 36px;
    margin-bottom: 16px;
  }
  .product-banner__desc {
    font-size: 12px;
    line-height: 1.8;
  }
  .product-banner__content {
    padding-bottom: 40px;
  }
  /* 产品列表单列 */
  .product-list {
    padding: 40px 0;
  }
  .product-list__inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .product-list__sidebar {
    position: relative;
    top: auto;
    margin-bottom: 0;
  }
  /* 手机上保持2列但确保产品可见 */
  .product-list__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    opacity: 1 !important;
    transform: none !important;
  }
  .product-list__sidebar.fade-up {
    opacity: 1 !important;
    transform: none !important;
  }
  .product-list__sidebar {
    padding: 8px;
  }
  .product-list__sidebar-title {
    padding: 12px;
    font-size: 14px;
  }
  .product-list__categories {
    padding: 0 8px;
  }
  .product-list__cat {
    min-height: 40px;
    padding: 8px 12px;
    font-size: 12px;
  }
  .product-card {
    padding: 6px;
    border-radius: 14px;
  }
  .product-card__img {
    border-radius: 12px;
  }
  .product-card__info {
    padding: 10px 8px 0;
  }
  .product-card__name {
    font-size: 12px;
    margin-bottom: 4px;
  }
  .product-card__cat {
    font-size: 11px;
  }
  .product-list__more {
    grid-column: 1 / -1;
  }
  .product-list__more-btn {
    width: 200px;
    height: 50px;
  }
}
@media (max-width: 480px) {
  .product-banner {
    height: 280px;
  }
  .product-banner__title {
    font-size: 28px;
  }
  .product-list__grid {
    grid-template-columns: 1fr;
  }
  .product-card__btn {
    height: 44px;
    font-size: 14px;
  }
}

/* --- Contact CTA --- */
.about-contact {
  padding: 173px 0 100px;
  background: #f4f6fa;
}
.about-contact__inner {
  display: grid;
  grid-template-columns: 668px 1fr;
  gap: 50px;
  align-items: start;
}
/* 左侧蓝色信息卡片 */
.about-contact__card {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  height: 645px;
}
.about-contact__card-bg {
  position: absolute;
  inset: 0;
}
.about-contact__card-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-contact__card-content {
  position: relative;
  z-index: 2;
  padding: 50px;
  display: flex;
  flex-direction: column;
  height: 645px;
}
.about-contact__heading {
  font-weight: 700;
  font-size: 36px;
  line-height: 56px;
  color: var(--color-white);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.about-contact__desc {
  font-size: 14px;
  line-height: 24px;
  color: var(--color-white);
  max-width: 388px;
  margin-bottom: auto;
}
.about-contact__card-box {
  width: 510px;
  height: 340px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 30px;
  padding: 50px 0 50px 50px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.about-contact__label {
  font-weight: 500;
  font-size: 20px;
  color: var(--color-white);
  margin-bottom: 20px;
}
.about-contact__email {
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 0;
  height: 48px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  padding: 0;
  margin-bottom: 30px;
}
.about-contact__email-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  padding: 12px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.1);
}
.about-contact__email span {
  font-weight: 500;
  font-size: 18px;
  color: var(--color-white);
  padding: 0 20px 0 12px;
  line-height: 48px;
}
.about-contact__socials {
  display: flex;
  gap: 20px;
}
.about-contact__social {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background var(--transition-base),
    transform var(--transition-base);
}
.about-contact__social:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}
.about-contact__social img {
  width: 28px;
  height: 28px;
  filter: brightness(0) invert(1);
}
/* 右侧表单 */
.about-contact__form-wrap {
  padding: 47px 0 0;
}
.about-contact__form-title {
  font-weight: 700;
  font-size: 36px;
  line-height: 66px;
  color: #112547;
  text-transform: uppercase;
  margin-bottom: 30px;
}
.about-contact__inner .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}
.about-contact__inner .form-input {
  background: rgba(17, 37, 71, 0.1);
  border: 1px solid rgba(17, 37, 71, 0.1);
  border-radius: 20px;
  padding: 0 30px;
  height: 62px;
  font-size: 12px;
  color: #112547;
  width: 100%;
  backdrop-filter: blur(18px);
  transition:
    border-color var(--transition-base),
    background var(--transition-base);
}
.about-contact__inner .form-input::placeholder {
  color: rgba(17, 37, 71, 0.5);
}
.about-contact__inner .form-input:focus {
  border-color: rgba(17, 37, 71, 0.3);
  background: rgba(17, 37, 71, 0.06);
}
.about-contact__inner .form-textarea {
  min-height: 206px;
  resize: vertical;
  margin-bottom: 30px;
  padding-top: 20px;
}
.about-contact__form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.about-contact__privacy {
  font-size: 14px;
  line-height: 24px;
  color: rgba(17, 37, 71, 0.5);
  max-width: 388px;
}
.about-contact__submit {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: #112547;
  border-radius: 20px;
  padding: 13px 36px;
  border: none;
  cursor: pointer;
  transition:
    background var(--transition-base),
    transform var(--transition-base);
  white-space: nowrap;
}
.about-contact__submit:hover {
  background: #1a3768;
  transform: translateY(-2px);
}
.about-contact__submit span:first-child {
  font-weight: 500;
  font-size: 24px;
  color: var(--color-white);
}
.about-contact__submit-arrow {
  font-size: 22px;
  color: var(--color-white);
  transition: transform var(--transition-base);
}
.about-contact__submit:hover .about-contact__submit-arrow {
  transform: translateX(3px);
}
/* --- About Contact 响应式 --- */
@media (max-width: 1199px) {
  .about-contact__inner {
    grid-template-columns: 1fr 1fr;
  }
  .about-contact__heading {
    font-size: 28px;
    line-height: 44px;
  }
  .about-contact__card-content {
    padding: 36px;
    min-height: auto;
  }
  .about-contact__form-title {
    font-size: 28px;
    line-height: 48px;
  }
}
@media (max-width: 767px) {
  .about-contact {
    padding: 40px 0;
  }
  .about-contact__inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .about-contact__card {
    min-height: auto;
  }
  .about-contact__card-content {
    padding: 30px;
    min-height: auto;
  }
  .about-contact__heading {
    font-size: 22px;
    line-height: 34px;
  }
  .about-contact__form-wrap {
    padding: 0;
  }
  .about-contact__form-title {
    font-size: 22px;
    line-height: 36px;
  }
  .about-contact__inner .form-row {
    grid-template-columns: 1fr;
  }
  .about-contact__inner .form-textarea {
    min-height: 120px;
  }
  .about-contact__form-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .about-contact__submit {
    width: 100%;
    justify-content: center;
  }
}
/* ======================== */
/* 响应式布局               */
/* ======================== */
@media (max-width: 1200px) {
  .about-profile__top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-history__inner {
    grid-template-columns: 1fr;
    gap: 50px;
  }
}

@media (max-width: 1024px) {
  /* Profile 区块 */
  .about-profile__text {
    order: 2;
  }
  .about-profile__image {
    order: 1;
    width: 100%;
    height: 400px;
    margin-left: 0;
  }
  .about-profile__image img {
    height: 100%;
  }

  /* Spirit 区块 */
  .about-spirit__inner {
    grid-template-columns: 1fr;
    height: auto;
  }
  .about-spirit__content {
    order: 1;
    padding: 60px 40px;
  }
  .about-spirit__video {
    order: 2;
    width: 100%;
    height: 400px;
  }

  /* History 区块 */
  .about-history__deco {
    width: 100%;
    opacity: 0.3; /* 防遮挡文字 */
  }

  /* Contact 区块 */
  .about-contact__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-contact__card {
    order: 1;
  }
  .about-contact__scene {
    order: 2;
    height: 400px;
  }
}

@media (max-width: 992px) {
  .about-banner {
    height: 450px;
  }
  .about-banner__label {
    font-size: 56px;
  }
  .about-banner__title {
    font-size: 28px;
  }
  .about-pvv__cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .about-certs__gallery {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .about-banner {
    height: 400px;
  }
  .about-banner__label {
    font-size: 40px;
  }
  .about-banner__title {
    font-size: 22px;
  }
  .about-profile {
    padding: 60px 0;
  }
  .about-profile__company {
    font-size: 24px;
  }
  .about-profile__stats {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
  }
  .about-profile__stat {
    justify-content: flex-start;
  }
  .about-profile__stat-divider {
    display: none;
  }
  .about-profile__image {
    height: 250px;
    padding: 0;
  }

  /* Spirit 区块 */
  .about-spirit__bg {
    background: url(../assets/img/about_pvv_small.png);
    background-size: 100% 100%;
    background-position: center top;
  }
  .about-spirit__content {
    width: 100%;
    height: auto;
    padding: 50px 30px;
    box-sizing: border-box;
  }
  .about-spirit__title {
    font-size: 32px;
  }
  .about-spirit__video {
    width: 100%;
    height: 250px;
    box-sizing: border-box;
  }

  /* History 区块 */
  .about-history {
    padding: 60px 0;
    min-height: auto;
  }
  .about-history__title {
    font-size: 28px;
  }
  .about-history__timeline {
    height: auto;
    min-height: auto;
    margin-left: 20px;
    margin-right: 20px;
    display: flex;
    flex-direction: column;
    gap: 40px;
    padding: 20px 0;
  }
  .about-history__line {
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-50%);
  }
  .about-history__item {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    margin-left: 40px;
    width: calc(100% - 40px) !important;
  }
  .about-history__item--left,
  .about-history__item--right {
    text-align: left;
  }
  .about-history__item--left .about-history__dot,
  .about-history__item--right .about-history__dot {
    left: -40px;
    right: auto;
    top: 18px;
    transform: translate(-50%, -50%);
    z-index: 10;
  }
  .about-history__year {
    font-size: 36px;
  }
  .about-history__card {
    width: 100%;
    padding: 24px;
    box-sizing: border-box;
  }

  /* Contact 区块 */
  .about-contact__card {
    padding: 0;
    height: auto;
    min-height: 480px;
  }
  .about-contact__card-content {
    padding: 40px 30px;
    height: auto;
    min-height: 480px;
  }
  .about-contact__card-box {
    width: 100%;
    height: auto;
    padding: 40px 30px;
    box-sizing: border-box;
  }
  .about-contact__heading {
    font-size: 28px;
    line-height: normal;
  }
  .about-contact__email {
    width: 100%;
    height: auto;
    min-height: 48px;
  }
  .about-contact__email span {
    font-size: 14px;
    padding: 0 10px;
    white-space: normal;
    word-break: break-all;
    line-height: normal;
  }
  .about-contact__scene {
    height: 250px;
  }

  /* 其他 */
  .about-pvv {
    padding: 60px 0;
  }
}