/* [2025-12-03]添加产品精选页面样式文件 - 优化视觉与动画 */
/* [2025-01-27]添加公共样式文件 - 头部、底部、通用样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #79715c;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  background: #eaeae7;
}
html {
  scroll-behavior: smooth;
}
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #f5f5f5;
}
::-webkit-scrollbar-thumb {
  background: #666;
  border-radius: 4px;
  transition: background 0.3s ease;
}
::-webkit-scrollbar-thumb:hover {
  background: #79715c;
}
* {
  scrollbar-width: thin;
  scrollbar-color: #666 #f5f5f5;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #eaeae7;
  backdrop-filter: none;
  box-shadow: none;
  transform: translateY(0);
  opacity: 0;
  transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out, background 0.3s ease-in-out, backdrop-filter 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}
body.homepage .site-header:not(.scrolled) {
  background: transparent;
}
.site-header.visible {
  opacity: 1;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}
.site-header.hidden {
  transform: translateY(-100%);
  opacity: 0;
}
.site-header .header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header .logo-wrapper {
  flex-shrink: 0;
}
.site-header .logo-wrapper .logo-link {
  display: block;
  text-decoration: none;
}
.site-header .logo-wrapper .logo-icon {
  font-size: 12px;
  width: 2.9em;
  height: 3.5em;
  background-size: 100% auto;
  background-repeat: no-repeat;
  background-position: 0 -185.5em;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
body.homepage .site-header .logo-wrapper .logo-icon {
  background-image: url('../images/logo_seq_alpha.png');
  filter: brightness(0) invert(1);
  animation: none;
  background-position: 0 -185.5em;
}
body:not(.homepage) .site-header .logo-wrapper .logo-icon {
  font-size: 48px;
  zoom: 0.25;
  background-image: url('../images/logo_seq_color.png');
  filter: none;
  animation: logo-animation-main 2.25s steps(53) forwards;
}
.site-header .logo-wrapper .logo-icon:hover {
  transform: scale(1.05);
}
.site-header .main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}
.site-header .main-nav .nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 32px;
}
body.homepage .site-header .main-nav .nav-item {
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
body.homepage .site-header .main-nav .nav-item.visible {
  opacity: 1;
  transform: translateY(0);
}
body:not(.homepage) .site-header .main-nav .nav-item {
  opacity: 1;
  transform: none;
}
.site-header .main-nav .nav-item .nav-link {
  text-decoration: none;
  font-size: 16px;
  font-weight: 400;
  position: relative;
  padding: 8px 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
body.homepage .site-header .main-nav .nav-item .nav-link {
  color: #ffffff;
}
body.homepage .site-header.scrolled .site-header .main-nav .nav-item .nav-link {
  color: #79715c !important;
}
body:not(.homepage) .site-header .main-nav .nav-item .nav-link {
  color: #79715c;
}
.site-header .main-nav .nav-item .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #79715c;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.site-header .main-nav .nav-item .nav-link:hover {
  color: #79715c;
}
.site-header .main-nav .nav-item .nav-link:hover::after {
  width: 100%;
}
.site-header .search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  height: 30px;
}
.site-header .search-wrapper .search-box {
  position: relative;
  width: 30px;
  height: 30px;
  border: 1px solid transparent;
  border-radius: 30px;
  background: transparent;
  padding: 0;
  overflow: visible;
  transition: width 0.3s ease-in-out, border-color 0.3s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}
.site-header .search-wrapper .search-box:hover,
.site-header .search-wrapper .search-box.active {
  width: 200px;
  border-color: #e0e0e0;
  padding: 0 16px 0 24px;
  justify-content: flex-start;
  overflow: hidden;
}
.site-header .search-wrapper .search-box .search-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  display: flex !important;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin: 0;
  position: relative;
  z-index: 2;
}
body.homepage .site-header .search-wrapper .search-box .search-btn {
  color: #ffffff;
}
body.homepage .site-header.scrolled .site-header .search-wrapper .search-box .search-btn {
  color: #79715c !important;
}
body:not(.homepage) .site-header .search-wrapper .search-box .search-btn {
  color: #79715c;
}
.site-header .search-wrapper .search-box .search-btn:hover {
  color: #79715c;
  transform: scale(1.1);
}
.site-header .search-wrapper .search-box .search-btn svg {
  width: 20px;
  height: 20px;
  display: block;
}
.site-header .search-wrapper .search-box .search-input {
  flex: 1;
  height: 100%;
  padding: 0 8px;
  border: none;
  background: transparent;
  font-size: 14px;
  outline: none;
  color: #79715c;
  min-width: 0;
  width: 0;
  transition: width 0.3s ease-in-out, opacity 0.3s ease-in-out;
}
.search-box:hover .site-header .search-wrapper .search-box .search-input,
.search-box.active .site-header .search-wrapper .search-box .search-input {
  width: auto;
  opacity: 1;
}
.site-header .search-wrapper .search-box .search-input::placeholder {
  color: #666;
}
.site-header .mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.site-header .mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: #79715c;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.site-header .mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(12px, -2px);
}
.site-header .mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.site-header .mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(12px, 2px);
}
body.homepage .site-header:not(.scrolled) .search-wrapper .search-box input {
  color: #fff;
}
body.homepage .site-header.scrolled .logo-wrapper .logo-icon {
  background-image: url('../images/logo_seq_color.png') !important;
  filter: none !important;
  background-position: 0 -185.5em !important;
}
body.homepage .site-header.scrolled .nav-list .nav-item .nav-link {
  color: #79715c;
}
body.homepage .site-header.scrolled .search-wrapper .search-box .search-btn {
  color: #79715c;
}
body.homepage .site-header.scrolled .search-wrapper .search-box input {
  color: #79715c;
}
.site-footer {
  background: #faf8f5;
  padding: 48px 0 32px;
}
.site-footer .footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}
.site-footer .footer-contact {
  gap: 20px;
}
.site-footer .footer-column {
  display: flex;
  flex-direction: column;
}
.site-footer .footer-column .contact-item {
  color: #79715c;
  font-size: 14px;
  line-height: 2;
  margin-bottom: 0;
}
.site-footer .footer-column .address-item {
  color: #79715c;
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 8px;
}
.site-footer .footer-column .address-item:last-of-type {
  margin-bottom: 24px;
}
.site-footer .footer-column .social-icons {
  display: flex;
  gap: 16px;
  margin-top: 24px;
}
.site-footer .footer-column .social-icons .social-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #7a725d;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.site-footer .footer-column .social-icons .social-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s ease;
}
.site-footer .footer-column .social-icons .social-icon:hover {
  color: #7a725d;
  transform: translateY(-2px);
}
.site-footer .footer-column .social-icons .social-icon:hover::before {
  left: 100%;
}
.site-footer .footer-column .social-icons .social-icon svg {
  position: relative;
  z-index: 1;
}
.site-footer .footer-column .footer-link {
  display: block;
  color: #79715c;
  text-decoration: none;
  font-size: 14px;
  line-height: 2;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.site-footer .footer-column .footer-link:hover {
  color: #79715c;
  padding-left: 8px;
}
.site-footer .footer-nav {
  display: flex !important;
  flex-direction: column;
  visibility: visible !important;
  opacity: 1 !important;
}
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 64px 0;
}
.text-center {
  text-align: center;
}
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
}
.fade-in.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes fadeInScale {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}
@keyframes logo-animation-main {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 0 -185.5em;
  }
}
.animate-slide-up {
  animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.animate-slide-left {
  animation: slideInLeft 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.animate-slide-right {
  animation: slideInRight 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.animate-scale-in {
  animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.animate-fade-scale {
  animation: fadeInScale 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.hover-lift {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}
.hover-scale {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-scale:hover {
  transform: scale(1.05);
}
.hover-glow {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-glow:hover {
  box-shadow: 0 0 20px rgba(44, 44, 44, 0.3);
}
.loading-shimmer {
  background: linear-gradient(90deg, #f5f5f5 0%, #ffffff 50%, #f5f5f5 100%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}
.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.page-loader .loader-content {
  width: 200px;
  height: 4px;
  background: #f5f5f5;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.page-loader .loader-content .loading-shimmer {
  width: 100%;
  height: 100%;
  border-radius: 2px;
}
.parallax-slow {
  transition: transform 0.1s ease-out;
}
.parallax-fast {
  transition: transform 0.3s ease-out;
}
@media (max-width: 1200px) {
  .site-header .header-container {
    padding: 16px;
  }
  .site-header .main-nav .nav-list {
    gap: 24px;
  }
}
@media (max-width: 768px) {
  .site-header .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transform: translateX(-100%);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .site-header .main-nav.active {
    transform: translateX(0);
  }
  .site-header .main-nav .nav-list {
    flex-direction: column;
    padding: 24px;
    gap: 0;
  }
  .site-header .main-nav .nav-item .nav-link {
    display: block;
    padding: 16px;
    border-bottom: 1px solid #e0e0e0;
  }
  .site-header .mobile-menu-btn {
    display: flex;
  }
  .site-footer .footer-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
.lc-logo {
  display: inline-block;
  width: 0.82857143em;
  height: 1em;
  background-image: url('../images/logo_seq_alpha.png');
  background-size: 100% auto;
  background-repeat: no-repeat;
  animation: logo-animation 2.25s steps(53);
  background-position: 0 -53em;
  transform: translate(-0.1em, 0.13em) scale(0.95);
  padding: 0 0.1em;
}
.lc-logo.static {
  animation: none !important;
}
.lc-logo.colored {
  background-image: url('../images/logo_seq_color.png');
}
@keyframes logo-animation {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 0 -53em;
    /* (54-1) * 290px = 15370px */
  }
}
[font-text] {
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center center;
  color: transparent;
}
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.product-hero-section {
  position: relative;
  width: 100%;
  height: 80vh;
  min-height: 600px;
  margin-top: 80px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.product-hero-section .hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.product-hero-section .hero-background .hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 10s ease;
}
.product-hero-section .hero-content {
  position: relative;
  z-index: 3;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  padding: 0 64px;
  color: #ffffff;
  padding-bottom: 64px;
}
.product-hero-section .hero-content .hero-title {
  font-family: "Songti SC", "SimSun", serif;
  font-size: 72px;
  font-weight: 400;
  margin-bottom: 32px;
  letter-spacing: 4px;
  opacity: 0;
  animation: fadeInRight 1s ease forwards;
}
.product-hero-section .hero-content .hero-desc-wrapper,
.product-hero-section .hero-content .hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  opacity: 0;
  animation: fadeInRight 1s ease forwards;
  animation-delay: 0.3s;
}
.product-hero-section .hero-content .hero-desc {
  font-size: 16px;
  line-height: 2;
  max-width: 500px;
  margin-top: 32px;
  opacity: 0;
  animation: fadeInRight 1s ease forwards;
  animation-delay: 0.6s;
  color: rgba(255, 255, 255, 0.9);
}
.product-hero-section .hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.3) 50%, transparent 100%);
  z-index: 2;
}
.series-recommendation {
  background: #ffffff;
  padding: 100px 0;
}
.series-recommendation .section-header {
  text-align: center;
  margin-bottom: 80px;
}
.series-recommendation .section-header .section-title-wrapper {
  display: inline-block;
  position: relative;
  padding: 0 40px;
}
.series-recommendation .section-header .section-title-wrapper .section-title {
  padding: 0 24px;
  font-size: 24px;
  background: #eaeae8;
  line-height: 40px;
  border-radius: 40px;
  font-weight: 900;
  color: #7c715b;
  letter-spacing: 0.5em;
  margin: 0;
}
.series-recommendation .series-list {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 100px;
  padding: 0 48px;
}
.series-recommendation a {
  text-decoration: none;
}
.series-recommendation .series-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  opacity: 0;
  transform: translateY(40px);
  transition: all 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.series-recommendation .series-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.series-recommendation .series-item .series-image-wrapper {
  flex: 1;
  max-width: 600px;
  overflow: hidden;
}
.series-recommendation .series-item .series-image-wrapper .series-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 1.2s ease;
}
.series-recommendation .series-item .series-image-wrapper:hover .series-image {
  transform: scale(1.05);
}
.series-recommendation .series-item .series-info {
  flex: 1;
  max-width: 400px;
}
.series-recommendation .series-item .series-info .series-name {
  font-family: "Songti SC", "SimSun", serif;
  font-size: 64px;
  font-weight: 400;
  color: #333;
  margin: 0 0 20px 0;
  letter-spacing: 2px;
}
.series-recommendation .series-item .series-info .series-desc {
  font-size: 16px;
  line-height: 1.8;
  color: #666;
  margin: 0;
  letter-spacing: 1px;
}
@media (max-width: 1200px) {
  .product-hero-section .hero-content .hero-title {
    font-size: 56px;
  }
  .series-recommendation .series-item {
    gap: 40px;
  }
  .series-recommendation .series-item .series-info .series-name {
    font-size: 48px;
  }
}
@media (max-width: 992px) {
  .product-hero-section {
    height: 60vh;
    min-height: 500px;
  }
  .series-recommendation {
    padding: 60px 0;
  }
  .series-recommendation .series-list {
    gap: 60px;
  }
  .series-recommendation .series-item {
    flex-direction: column !important;
    text-align: center;
    gap: 30px;
  }
  .series-recommendation .series-item .series-image-wrapper {
    width: 100%;
    max-width: 100%;
  }
  .series-recommendation .series-item .series-info {
    max-width: 100%;
  }
  .series-recommendation .series-item .series-info .series-name {
    font-size: 42px;
  }
}