/* ======================== */
/* Project 页面样式         */
/* ======================== */
/* --- Banner --- */
.proj-banner {
  position: relative;
  width: 100%;
  height: 672px;
  overflow: hidden;
}
.proj-banner__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.proj-banner__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.proj-banner__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  padding-top: var(--header-h);
}
.proj-banner__title {
  font-weight: 700;
  font-size: 86px;
  line-height: 0.77;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 30px;
}
.proj-banner__desc {
  font-weight: 350;
  font-size: 14px;
  line-height: 2.29;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
  max-width: 650px;
}
/* --- Featured Projects 精选项目 --- */
.proj-featured {
  background: #edf0f4;
}
.proj-featured__inner {
  padding: 0 var(--container-padding);
}
.proj-featured__header {
  display: flex;
  gap: 40px;
  margin-bottom: 60px;
  align-items: flex-start;
}
.proj-featured__header-left {
  flex: 0 0 600px;
  position: relative;
}
.proj-featured__watermark {
  position: absolute;
  top: 50px;
  left: 0;
  text-transform: uppercase;
  font-weight: 800;
  font-size: 96px;
  color: rgba(255, 255, 255, 0.09);
  line-height: 100px;
  -webkit-text-stroke: 1px rgba(17, 37, 71, 0.1);
  pointer-events: none;
  backdrop-filter: blur(9px);
}
.proj-featured__title {
  position: relative;
  font-weight: 700;
  font-size: 36px;
  line-height: 1.56;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 20px;
  margin-top: 190px;
}
.proj-featured__subtitle {
  font-weight: 400;
  font-size: 16px;
  line-height: 1.75;
  color: #333;
  max-width: 598px;
}
.proj-featured__hero {
  flex: 1;
  position: relative;
  margin-top: -150px;
  border-radius: 30px;
  overflow: hidden;
  height: 728px;
  border-width: 20px 20px 0;
  border-radius: 30px;
  border-color: #edf0f4;
  border-style: solid;
  background-color: #edf0f4;
}
.proj-featured__hero-img {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 30px;
}
.proj-featured__hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.proj-featured__hero:hover img {
  transform: scale(1.03);
}
.proj-featured__hero-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  padding: 40px 30px;
}
.proj-featured__hero-title {
  font-weight: 500;
  font-size: 20px;
  line-height: 2.4;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.proj-featured__hero-desc {
  font-weight: 400;
  font-size: 14px;
  line-height: 2.29;
  color: #fff;
  max-width: 640px;
}
/* --- 项目卡片网格 3x3 --- */
.proj-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  padding-bottom: 80px;
}
.proj-card {
  position: relative;
  border-radius: 30px 0 30px 30px;
  overflow: hidden;
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}
.proj-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(17, 37, 71, 0.12);
}
.proj-card__img {
  width: 100%;
  height: 340px;
  overflow: hidden;
}
.proj-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.proj-card:hover .proj-card__img img {
  transform: scale(1.05);
}
.proj-card__body {
  padding: 20px 30px 24px;
}
.proj-card__title {
  font-weight: 500;
  font-size: 20px;
  line-height: 2.4;
  color: #333;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.proj-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.proj-card__location {
  font-weight: 400;
  font-size: 14px;
  line-height: 2.29;
  color: #666;
}
.proj-card__date {
  font-weight: 400;
  font-size: 14px;
  line-height: 2.29;
  color: #666;
  text-align: right;
}
.proj-card__expand {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0 0 10px 10px;
  border-radius: 0 0 0 20px;
  background-color: #edf0f4;
}
.proj-card__expand__btn {
  width: 42px;
  height: 42px;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  cursor: pointer;
  transition:
    background 0.3s ease,
    transform 0.3s ease;
  backdrop-filter: blur(5px);
  border-radius: 50%;
}
.proj-card__expand__btn:hover {
  background: var(--color-accent-hover);
}
/* --- Project Cooperation Advantages 合作优势 --- */
.proj-advantages {
  position: relative;
  padding: 80px 0 100px;
  background: #fff;
  overflow: hidden;
}
.proj-advantages__inner {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
.proj-advantages__title {
  font-weight: 700;
  font-size: 36px;
  line-height: 1.56;
  text-transform: uppercase;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 60px;
}
/* 每一行容器 */
.proj-adv-row {
  display: flex;
  gap: 20px;
  margin-bottom: 50px;
  height: 360px;
}
.proj-adv-row:last-child {
  margin-bottom: 0;
}
/* 浅色卡片（文字叠加）*/
.proj-adv-card {
  position: relative;
  background: #f5f5f5;
  border-radius: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px 50px;
  z-index: 2;
}
.proj-adv-card__before {
  content: '';
  position: absolute;
  top: 50%;
  right: -75px;
  transform: translateY(-50%);
  width: 75px;
  height: 140px;
  border-radius: 0 20px 20px 0;
  border: 20px solid #fff;
  border-left: none;
  background-color: #fff;
}
.proj-adv-card__before::before {
  content: '';
  display: inline-block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #f5f5f5;
  border-radius: 0 20px 20px 0;
}
.proj-adv-card__heading {
  font-weight: 700;
  font-size: 24px;
  line-height: 1.17;
  color: #333;
  margin-bottom: 20px;
}
.proj-adv-card__desc {
  font-weight: 400;
  font-size: 14px;
  line-height: 2;
  color: #333;
}
/* 图片块 */
.proj-adv-img {
  flex: 1;
  border-radius: 20px;
  overflow: hidden;
}
.proj-adv-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.proj-adv-img:hover img {
  transform: scale(1.05);
}
/* 反向行（图片在左，卡片在右）*/
.proj-adv-row--reverse {
  flex-direction: row-reverse;
}
.proj-adv-row--reverse .proj-adv-card__before {
  right: auto;
  left: -75px;
  border-radius: 20px 0 0 20px;
  border: 20px solid #fff;
  border-right: none;
}
.proj-adv-row--reverse .proj-adv-card__before::before {
  border-radius: 20px 0 0 20px;
}
/* --- Cooperate With Us 联系卡片 --- */
.proj-cooperate {
  position: relative;
  height: 740px;
  overflow: hidden;
}
.proj-cooperate__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.proj-cooperate__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.proj-cooperate__inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0 var(--container-padding);
}
.proj-cooperate__card {
  width: 100%;
  max-width: 1200px;
  background: rgba(41, 120, 254, 0.18);
  backdrop-filter: blur(60px);
  -webkit-backdrop-filter: blur(60px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 30px;
  padding: 60px 80px 0;
  text-align: center;
  overflow: hidden;
}
.proj-cooperate__card-title {
  font-weight: 700;
  font-size: 36px;
  line-height: 1.83;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.proj-cooperate__card-desc {
  font-weight: 400;
  font-size: 16px;
  line-height: 1.75;
  color: #fff;
  max-width: 702px;
  margin: 0 auto 40px;
}
.proj-cooperate__card-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-bottom: 30px;
}
.proj-cooperate__email-group {
  display: inline-flex;
  align-items: center;
  background: var(--color-white);
  border-radius: 20px;
  height: 52px;
  padding: 0 20px 0 0;
  gap: 10px;
  transition: background 0.3s ease;
}
.proj-cooperate__email-icon {
  width: 52px;
  height: 52px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}
.proj-cooperate__email-icon img {
  width: 32px;
  height: 32px;
  filter: brightness(0) saturate(100%) invert(12%) sepia(46%) saturate(2089%) hue-rotate(196deg) brightness(96%) contrast(104%);
}
.proj-cooperate__email-text {
  font-weight: 700;
  font-size: 24px;
  line-height: 1.5;
  color: var(--color-primary);
}
.proj-cooperate__socials {
  display: flex;
  gap: 20px;
}
.proj-cooperate__social {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background 0.3s ease,
    transform 0.3s ease;
}
.proj-cooperate__social:hover {
  background: rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
}
.proj-cooperate__social img {
  width: 28px;
  height: 28px;
  filter: brightness(0) saturate(100%) invert(12%) sepia(46%) saturate(2089%) hue-rotate(196deg) brightness(96%) contrast(104%);
}
.proj-cooperate__tips {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(56px);
  -webkit-backdrop-filter: blur(56px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0;
  padding: 30px 240px;
  margin-top: 30px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: -80px;
  margin-right: -80px;
}
.proj-cooperate__tips p {
  font-weight: 400;
  font-size: 12px;
  line-height: 1.67;
  color: var(--color-white);
  text-align: center;
}
/* --- 响应式 — Desktop 1366 --- */
@media (max-width: 1440px) {
  .proj-banner__content {
    padding: 0 120px;
    padding-top: var(--header-h);
  }
  .proj-featured__header-left {
    flex: 0 0 480px;
  }
  .proj-featured__hero {
    height: 600px;
  }
  .proj-featured__watermark {
    font-size: 72px;
  }
}
/* --- 响应式 — Tablet --- */
@media (max-width: 1199px) {
  .proj-banner {
    height: 500px;
  }
  .proj-banner__content {
    padding: 0 60px;
    padding-top: var(--header-h);
  }
  .proj-banner__title {
    font-size: 56px;
  }
  .proj-featured__header {
    flex-direction: column;
  }
  .proj-featured__header-left {
    flex: none;
    padding-top: 0;
  }
  .proj-featured__watermark {
    display: none;
  }
  .proj-featured__title {
    margin-top: 0;
  }
  .proj-featured__hero {
    height: 400px;
    margin-top: 0;
  }
  .proj-card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .proj-card__img {
    height: 260px;
  }
  .proj-adv-row {
    flex-direction: column;
    height: auto;
    gap: 20px;
    margin-bottom: 30px;
  }
  .proj-adv-row--reverse {
    flex-direction: column;
  }
  .proj-adv-card {
    flex: none;
    min-height: 200px;
  }
  .proj-adv-card__before {
    display: none;
  }
  .proj-adv-img {
    flex: none;
    height: 280px;
  }
  .proj-cooperate {
    height: auto;
    min-height: 600px;
    padding: 60px 0;
  }
  .proj-cooperate__card {
    padding: 40px 40px 0;
  }
  .proj-cooperate__card-title {
    font-size: 28px;
  }
  .proj-cooperate__email-text {
    font-size: 18px;
  }
  .proj-cooperate__tips {
    padding: 20px 30px;
    margin-left: -40px;
    margin-right: -40px;
  }
}
/* --- 响应式 — Mobile --- */
@media (max-width: 767px) {
  .proj-banner {
    height: 420px;
  }
  .proj-banner__content {
    padding: 0 20px;
    padding-top: var(--header-h);
  }
  .proj-banner__title {
    font-size: 40px;
  }
  .proj-banner__desc {
    font-size: 13px;
    line-height: 1.8;
  }
  .proj-featured {
    padding: 40px 0 0;
  }
  .proj-featured__header {
    flex-direction: column;
    margin-bottom: 30px;
  }
  .proj-featured__header-left {
    flex: none;
    padding-top: 0;
  }
  .proj-featured__watermark {
    display: none;
  }
  .proj-featured__title {
    font-size: 24px;
    margin-top: 0;
  }
  .proj-featured__subtitle {
    font-size: 14px;
  }
  .proj-featured__hero {
    height: 280px;
    border-radius: 20px;
    margin-top: 0;
  }
  .proj-card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-bottom: 40px;
  }
  .proj-card {
    border-radius: 20px;
  }
  .proj-card__img {
    height: 220px;
  }
  .proj-card__body {
    padding: 16px 20px 20px;
  }
  .proj-card__title {
    font-size: 16px;
    line-height: 1.6;
  }
  .proj-advantages {
    padding: 40px 0 60px;
  }
  .proj-advantages__title {
    font-size: 24px;
    margin-bottom: 30px;
  }
  .proj-adv-row {
    flex-direction: column;
    height: auto;
    gap: 16px;
    margin-bottom: 24px;
  }
  .proj-adv-row--reverse {
    flex-direction: column;
  }
  .proj-adv-card {
    flex: none;
    min-height: 180px;
    padding: 30px 24px;
  }
  .proj-adv-card__before {
    display: none;
  }
  .proj-adv-card__heading {
    font-size: 20px;
  }
  .proj-adv-img {
    flex: none;
    height: 220px;
    border-radius: 12px;
  }
  .proj-cooperate {
    min-height: auto;
    padding: 40px 0;
  }
  .proj-cooperate__card {
    padding: 30px 20px 0;
    border-radius: 20px;
  }
  .proj-cooperate__card-title {
    font-size: 22px;
  }
  .proj-cooperate__card-desc {
    font-size: 14px;
  }
  .proj-cooperate__card-actions {
    flex-direction: column;
    gap: 20px;
  }
  .proj-cooperate__email-text {
    font-size: 16px;
  }
  .proj-cooperate__tips {
    padding: 12px 16px;
    margin-left: -20px;
    margin-right: -20px;
    height: auto;
  }
}