/* =========================================
   3. Layout
   ========================================= */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  min-height: 100vh;
  padding: 100px 0;
  box-sizing: border-box;
}

.section.section-half {
  height: 60vh;
}

.section-with-bg {
  position: relative;
  padding: 150px 0;
  color: var(--light-text);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 46, 92, 0.5);
  z-index: 1;
}

.section-with-bg .container {
  position: relative;
  z-index: 2;
}

.light-bg {
  background-color: var(--secondary-color);
}

.section-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 50px;
  color: var(--primary-color);
  position: relative;
  padding-bottom: 20px;
  margin-bottom: 60px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

/* section.section:nth-of-type(2n - 1) .section-title {
  color: #fff;
}

section.section:nth-of-type(2n - 1) .section-title::after {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.2), #fff);
} */

.section-with-bg .section-title {
  color: var(--light-text);
}

.section-with-bg .section-title::after {
  background-color: var(--light-text);
}

.section-subtitle {
  text-align: center;
  font-size: 20px;
  color: var(--accent-color);
  margin-bottom: 15px;
  margin-left: 16px;
}

.section-desc {
  display: block;
  padding: 20px;
  margin-bottom: 30px;
  background-color: rgba(255, 255, 255, 0.2);
  font-size: 16px;
  color: var(--accent-color);
}

/* 背景图片设置 */
.about-bg::before {
  content: '';
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./images/banner1-v1.jpg');
  background-position: 100% 50%;
  background-size: cover;
  opacity: 0.85;
}

.v0 .about-bg::before {
  background-image: url('./images/banner1-v0.jpg?v=1');
  opacity: 0.8;
}

.v1 .about-bg::before {
  background-image: url('./images/banner1-v1.jpg');
  opacity: 0.85;
}

/* Principal 区块背景 */
.principal-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.principal-bg::before {
  content: '';
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./images/banner1-v1.jpg');
  background-position: top left;
  background-size: 200%;
  opacity: 0.55;
}

#principal {
  padding: 120px 0;
  text-align: center;
  position: relative;
}

#principal .strategy-card {
  margin-top: 60px;
}

#principal .section-title {
  color: var(--primary-color);
}

/* 两端对齐 */
#principal p,
#focus p,
#product p,
#product ul li,
#disclaimer p {
  text-align: left;
}

.principal-content {
  display: flex;
  flex-direction: column;
  gap: 60px;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeInUp 1s ease;
}

.principal-item {
  background-color: rgba(255, 255, 255, 0.6);
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 15px 30px rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.4s ease;
}

.principal-item:hover {
  transform: translateY(-10px);
  background-color: rgba(255, 255, 255, 0.8);
}

.principal-item h2 {
  font-size: 24px;
  margin-bottom: 12px;
  color: var(--primary-color);
  position: relative;
  text-align: left;
}

.principal-item p {
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-color);
  /* max-width: 700px; */
  text-align: left;
}

/* 响应式调整 */
@media (max-width: 992px) {
  #principal {
    padding: 100px 0;
  }

  .v2 .principal-bg::before {
    background-image: url('./images/banner1-v1.jpg');
    background-position: top left;
    background-size: 400%;
    opacity: 0.2;
  }

  .principal-item {
    padding: 30px;
  }

  .principal-item h2 {
    font-size: 28px;
  }

  .principal-item p {
    font-size: 16px;
  }

  .v2 .product-bg::before {
    background-image: url('./images/banner1-v1.jpg');
    background-position: top left;
    background-size: 400%;
    opacity: 0.2;
  }

  #product li {
    text-align: left !important;
  }
}

@media (max-width: 768px) {
  #principal {
    padding: 80px 0;
  }

  .principal-content {
    gap: 40px;
  }

  .principal-item {
    padding: 25px;
  }

  .principal-item h2 {
    font-size: 24px;
    margin-bottom: 15px;
  }

  .principal-item p {
    font-size: 15px;
  }
}

@media (max-width: 576px) {
  #principal {
    padding: 60px 0;
  }

  .principal-content {
    gap: 30px;
  }

  .principal-item {
    padding: 20px;
  }

  .principal-item h2 {
    font-size: 22px;
  }

  .principal-item p {
    font-size: 14px;
  }
}

/* 5.2 Focus区块 - 美化版 */
.focus-bg {
  position: relative;
  background-color: #f8f9fa;
}

.focus-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./images/banner1-v1.jpg');
  background-position: 100% 50%;
  background-size: cover;
  opacity: 0.55;
  z-index: 0;
}

.v0 .focus-bg::before {
  background-image: url('./images/banner2-v0.jpg');
  background-position: center;
  background-size: cover;
  opacity: 0.3;
}

.v1 .focus-bg::before {
  background-image: url('./images/banner2-v1.jpg');
  background-position: center;
  background-size: cover;
  opacity: 0.55;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.focus-item {
  margin: 20px auto 0;
  max-width: 1060px;
}

.focus-card {
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  height: 100%;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.focus-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.focus-item h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--primary-color);
  position: relative;
  padding-bottom: 10px;
}

.focus-item h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.focus-item ul {
  font-size: 16px;
  line-height: 1.8;
  text-align: left;
}

.focus-item ul li {
  position: relative;
  padding-left: 5px;
  margin-bottom: 15px;
}

.focus-item ul li:last-child {
  margin-bottom: 0;
}

.focus-item ul li b {
  color: var(--primary-color);
  font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 992px) {
  .focus-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .focus-card {
    padding: 25px;
  }

  .focus-icon {
    width: 50px;
    height: 50px;
  }

  .focus-icon i {
    font-size: 20px;
  }

  .focus-item h3 {
    font-size: 22px;
  }
}

@media (max-width: 576px) {
  .focus-card {
    padding: 20px;
  }

  .focus-item h3 {
    font-size: 20px;
  }

  .focus-item ul {
    font-size: 15px;
  }

  .focus-icon {
    width: 45px;
    height: 45px;
  }

  .focus-icon i {
    font-size: 18px;
  }
}

.product-bg {
  position: relative;
  overflow: hidden;
  padding-bottom: 100px;
  height: 100%;
}

.product-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./images/banner1-v1.jpg');
  background-position: top left;
  background-size: 200%;
  opacity: 0.55;
  z-index: 0;
  /* transform: scale(1.05); */
  /* transition: transform 0.5s ease; */
}

.v0 .product-bg::before {
  background-image: url('./images/banner3-v0.jpg');
  opacity: 0.3;
}

.product-bg:hover::before {
  transform: scale(1);
}

.disclaimer-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./images/banner6.jpg');
  background-position: center;
  background-size: 100% 100%;
  opacity: 0.2;
  z-index: 1;
  transform: scale(1.05);
  transition: transform 0.5s ease;
}

/* 确保section-with-bg类不会被默认的unsplash图片覆盖 */
.section-with-bg:not(.about-bg) {
  background-image: none;
}

/* =========================================
   5. Sections
   ========================================= */

/* 5.1 About */
#about {
  position: relative;
  display: flex;
  align-items: center;
  padding: 150px 0 150px;
}

#about .container {
  position: relative;
  height: 100%;
}

#about .content-box {
  max-width: 800px;
  margin: 0 auto;
  box-sizing: border-box;
  animation: fadeInUp 1s ease;
}

#about .content-box p {
  text-align: justify;
  font-size: 18px;
}

#about .content-box p b {
  font-size: 20px;
  font-weight: bold;
}

.pc #about .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.pc #about .content-box {
  width: 800px;
  padding: 25px 35px;
  margin: 0;
  background-color: rgba(0, 0, 0, 0.25);
  transition: all 0.3s ease;
}

.pc #about .content-box:hover {
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  transform: translateY(-8px);
}

.pc #about .content-box p {
  line-height: 2;
}

#about h1 {
  font-size: 48px;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

#about p {
  font-size: 16px;
  line-height: 1.8;
  text-align: left;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 5.2 Focus */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  /* gap: 64px; */
}

.focus-item {
  margin-top: 20px;
}

.focus-item h3 {
  font-size: 24px;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.focus-item ul {
  font-size: 16px;
  line-height: 1.8;
  text-align: left;
}

.focus-item ul li + li {
  margin-top: 10px;
}

/* 5.3 Product */
#product {
  position: relative;
  padding-top: 0;
  padding-bottom: 0;
}

.product-header {
  min-height: 100vh;
  padding-top: 100px;
}

.product-features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0 20px 80px;
}

.feature {
  display: flex;
  align-items: center;
  margin: 10px 20px;
  transition: all 0.3s ease;
}

.feature:hover {
  transform: translateX(10px);
}

.feature-dot {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  background-color: var(--primary-color);
  border-radius: 50%;
  margin-right: 10px;
  transition: all 0.3s ease;
}

.feature:hover .feature-dot {
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  transform: scale(1.2);
}

.product-description {
  text-align: center;
  font-size: 18px;
  max-width: 800px;
  margin: 0 auto 50px;
}

.product-icons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 30px;
}

.icon-item {
  text-align: center;
}

.icon {
  width: 70px;
  height: 70px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  transition: transform 0.4s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.icon i {
  font-size: 28px;
  color: var(--light-text);
}

.icon-item:hover .icon {
  transform: translateY(-10px) rotate(5deg);
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.icon-item p {
  font-size: 14px;
  font-weight: 500;
}

/* 产品卡片样式 */
.strategy-card {
  background-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 32px 30px;
  margin-bottom: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.strategy-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.strategy-card .section-subtitle {
  margin-left: 2px;
  margin-bottom: 12px;
  text-align: left;
  color: var(--primary-color);
  font-size: 20px;
  font-weight: 700;
  /* white-space: nowrap; */
}

.strategy-card .section-desc {
  margin-bottom: 0;
  line-height: 1.7;
  background: none;
  padding: 0;
}

.investment-sectors-title {
  text-align: center;
  font-size: 24px;
  margin: 40px 0 30px;
  color: var(--primary-color);
  position: relative;
  padding-bottom: 15px;
}

.investment-sectors-title:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--accent-color)
  );
  border-radius: 3px;
}

/* 5.4 Disclaimer */
#disclaimer {
  background-color: #f0f0f0; /* 添加浅红色背景 */
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(220, 53, 69, 0.1);
  border-bottom: 1px solid rgba(220, 53, 69, 0.1);
}

#disclaimer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(220, 53, 69, 0.03) 0%,
    rgba(255, 255, 255, 0) 50%,
    rgba(220, 53, 69, 0.03) 100%
  );
  z-index: 0;
}

#disclaimer .container {
  position: relative;
  z-index: 1;
}

#disclaimer .section-title {
  color: #a94442;
}

#disclaimer .section-title::after {
  background: linear-gradient(90deg, #a94442, #dc3545);
}

.disclaimer-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: left;
}

.disclaimer-content h3 {
  font-size: 20px;
  color: #a94442;
  margin: 30px 0 15px;
  padding-left: 15px;
  border-left: 3px solid #dc3545;
}

.disclaimer-content p {
  margin-bottom: 15px;
  line-height: 1.7;
  font-size: 15px;
}

/* =========================================
   6. Footer
   ========================================= */
footer {
  background-color: var(--dark-bg);
  color: var(--light-text);
  padding: 70px 0 20px;
}

footer .container {
  max-width: 1200px;
}

.footer-content {
  display: flex;
  margin-bottom: 50px;
}

.footer-content > * {
  flex: 1 1 0;
}

.footer-content > .footer-links {
  flex: 0.5 0.5 0;
}

.footer-logo h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.footer-links h4,
.footer-social h4,
.footer-contact h4 {
  font-size: 18px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4::after,
.footer-social h4::after,
.footer-contact h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--light-text);
}

.footer-links ul li {
  margin-bottom: 10px;
}

.footer-links ul li a {
  transition: var(--transition);
  opacity: 0.8;
}

.footer-links ul li a:hover {
  opacity: 1;
  padding-left: 5px;
}

.footer-contact .contact-details {
  margin-top: 15px;
}

.footer-contact .contact-item {
  display: flex;
  margin-bottom: 15px;
}

.footer-contact .contact-item i {
  min-width: 18px;
  font-size: 18px;
  color: var(--light-text);
  margin-right: 15px;
  opacity: 0.8;
}

.footer-contact .contact-item p {
  font-size: 14px;
  opacity: 0.8;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
}

/* =========================================
   7. Responsive
   ========================================= */
@media (max-width: 992px) {
  .section {
    height: auto !important;
    padding: 80px 0;
  }

  .section-with-bg {
    padding: 100px 0;
  }

  .focus-grid,
  .contact-grid,
  .footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .product-header {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .product-icons {
    grid-template-columns: repeat(3, 1fr);
  }

  .strategy-card {
    padding: 25px 25px;
  }
}

@media (max-width: 768px) {
  header .container {
    padding: 15px 20px;
  }

  nav {
    position: fixed;
    top: 57px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 57px);
    background-color: var(--light-bg);
    transition: var(--transition);
    z-index: 999;
  }

  nav.active {
    left: 0;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
  }

  nav ul li {
    margin: 15px 0;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7.5px, -7.5px);
  }

  .section {
    height: auto !important;
  }

  .product-icons {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  #about {
    padding: 150px 0 100px;
  }

  #about h1 {
    font-size: 36px;
  }

  .section-title {
    font-size: 30px;
  }

  .strategy-card .section-subtitle {
    font-size: 20px;
  }

  .investment-sectors-title {
    font-size: 22px;
    margin: 30px 0 25px;
  }

  .disclaimer-content h3 {
    font-size: 18px;
    margin: 25px 0 12px;
  }

  .disclaimer-content p {
    font-size: 14px;
  }
}

@media (max-width: 576px) {
  .section {
    height: auto !important;
    padding: 60px 0;
  }

  .section-with-bg {
    padding: 80px 0;
  }

  .product-bg::before {
    transform: scale(1);
  }

  .product-features {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature {
    margin: 8px 0;
  }

  .product-icons {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  #about {
    padding: 120px 0 80px;
  }

  #about h1 {
    font-size: 30px;
  }

  .section-title {
    font-size: 26px;
    margin-bottom: 30px;
  }

  .strategy-card {
    padding: 20px 20px;
  }

  .strategy-card .section-subtitle {
    font-size: 18px;
  }

  .investment-sectors-title {
    font-size: 20px;
    margin: 25px 0 20px;
  }
}