/* ========================================
   Product Head Selector Section Styles
======================================== */

.product-head-selector {
  max-width: 1310px;
  margin: 0 auto;
  position: relative;
}

/* Main Content Container with Rounded Background */
.product-head-selector__content {
  position: relative;
  padding: 24px 40px;
  margin-top: 16px;
  /* Removed overflow: hidden to prevent background clipping */
}

/* Figma Background Recreation - Blue Ellipse Gradient */
.product-head-selector__content::before {
  content: '';
  position: absolute;
  top: -80px;
  left: -50px;
  right: -50px;
  bottom: -50px;
  z-index: -2;
  background: 
    /* Blue elliptical gradient matching Figma design */
    radial-gradient(
      ellipse 65% 40% at 50% 65%, 
      rgba(88, 148, 189, 0.8) 0%, 
      rgba(88, 148, 189, 0.4) 40%,
      rgba(88, 148, 189, 0) 70%
    ),
    /* Base background */
    #ffffff;
  filter: blur(50px);
}

/* Bottom White Gradient Mask */
.product-head-selector__content::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30%;
  z-index: -1;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 35%,
    rgba(255, 255, 255, 1) 100%
  );
}

/* Responsive adjustments for background effects */
@media screen and (max-width: 767px) {
  .product-head-selector__content::before {
    /* Extend background further on mobile to prevent clipping */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* Adjust ellipse for mobile screens - keep same intensity */
    background: 
      radial-gradient(
        ellipse 90% 45% at 50% 65%, 
        rgba(88, 148, 189, 0.8) 0%, 
        rgba(88, 148, 189, 0.4) 40%,
        rgba(88, 148, 189, 0) 70%
      ),
      #ffffff;
    filter: blur(50px);
  }
  
  .product-head-selector__content::after {
    height: 30%;
    bottom: -20px;
  }
}

@media screen and (max-width: 1067px) {
  .product-head-selector__content::after {
    display: none;
  }
}

@media screen and (min-width: 1068px) {
  .product-head-selector__content::before {
    /* Enhanced effect for larger screens */
    background: 
      radial-gradient(
        ellipse 60% 35% at 50% 60%, 
        rgba(88, 148, 189, 0.85) 0%, 
        rgba(88, 148, 189, 0.45) 40%,
        rgba(88, 148, 189, 0) 70%
      ),
      #ffffff;
    filter: blur(60px);
  }
}

/* Decorative Icons Container */
.product-head-selector__decorative-icons {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  display: flex;
  gap: 10px;
}

.product-head-selector__decorative-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.product-head-selector__decorative-icon img,
.product-head-selector__decorative-icon svg {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

/* ========================================
   Header Styles
======================================== */
.product-head-selector__header {
  text-align: center;
  margin-bottom: 40px;
}

.product-head-selector__title {
  font-size: 36px;
  font-weight: 600;
  margin: 0 0 10px 0;
  color: var(--color-body, #151515);
  line-height: 1.2;
}

.product-head-selector__subtitle {
  font-size: 16px;
  color: var(--color-body, #151515);
  margin: 0;
  opacity: 0.8;
}

/* ========================================
   Tabs Styles
======================================== */
.product-head-selector__tabs-container {
  text-align: center;
  margin-bottom: 16px;
}

.product-head-selector__tabs {
  display: inline-flex;
  justify-content: center;
  gap: 40px;
  position: relative;
}

.product-head-selector__tab {
  background: none;
  border: none;
  padding: 15px 0;
  font-size: 18px;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  color: rgba(0, 0, 0, 0.5);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 120px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

/* Tab 图标/文本 */
.product-head-selector__tab-icon {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.05));
}

.product-head-selector__tab-label {
  line-height: 1;
}

.product-head-selector__tab.active {
  color: var(--color-primary-blue, #2286fe);
  font-weight: 700;
  transform: translateY(-2px);
}
.product-head-selector__tab:focus,
.product-head-selector__tab:focus-visible {
  outline: none!important;
  outline-offset: 0!important;
}

.product-head-selector__tab.active:after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 4px;
  background: var(--color-primary-blue, #2286fe);
  border-radius: 2px;
  animation: tabUnderlineExpand 0.3s ease-out;
}

@keyframes tabUnderlineExpand {
  from {
    width: 0;
    opacity: 0;
  }
  to {
    width: 100%;
    opacity: 1;
  }
}

.product-head-selector__tab:hover {
  color: var(--color-primary-blue, #2286fe);
  transform: translateY(-1px);
}

/* ========================================
   Content Area Styles
======================================== */
.product-head-selector__tab-contents {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.product-head-selector__tab-content {
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.product-head-selector__tab-content.active {
  display: block;
  opacity: 1;
}

.product-head-selector-tab-swiper {
  position: relative;
  overflow: hidden;
}

.product-head-selector__slide {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 20px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-head-selector__slide.swiper-slide-active {
  opacity: 1;
  transform: translateY(0);
}

.product-head-selector__image-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin-bottom: 40px;
  /* 由图片原始比例驱动，桌面优先，回退到通用变量，最终回退 4:3 */
  aspect-ratio: var(--image-aspect-ratio-desktop, var(--image-aspect-ratio, 4 / 3));
  overflow: hidden;
  border-radius: 28px;
  background-color: #fff;
  /* background:
    radial-gradient(120% 80% at 0% 0%, rgba(34, 134, 254, 0.06) 0%, rgba(34, 134, 254, 0) 60%),
    radial-gradient(120% 80% at 100% 100%, rgba(34, 134, 254, 0.06) 0%, rgba(34, 134, 254, 0) 60%),
    #f8fbff; */
  border: 1px solid rgba(0, 0, 0, 0.06);
  animation: fadeInUp 0.8s ease-out 0.6s both;
  z-index: 100;
}

/* 移动端优先使用移动图的原始比例（存在时） */
@media screen and (max-width: 767px) {
  .product-head-selector__image-container {
    aspect-ratio: var(
      --image-aspect-ratio-mobile,
      var(--image-aspect-ratio-desktop, var(--image-aspect-ratio, 4 / 3))
    );
  }
}

/* 不支持 aspect-ratio 的降级方案 */
@supports not (aspect-ratio: 1) {
  .product-head-selector__image-container {
    height: 0;
    padding-bottom: var(--padding-bottom-desktop, var(--padding-bottom, 75%));
  }
  .product-head-selector__image-desktop,
  .product-head-selector__image-mobile {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }
  @media screen and (max-width: 767px) {
    .product-head-selector__image-container {
      padding-bottom: var(
        --padding-bottom-mobile,
        var(--padding-bottom-desktop, var(--padding-bottom, 75%))
      );
    }
  }
}

/* Responsive Image Display */
.product-head-selector__image-desktop {
  display: block;
  width: 100%;
  height: 100%;
}

.product-head-selector__image-mobile {
  display: none;
  width: 100%;
  height: 100%;
}

/* Mobile First Responsive Images */
@media screen and (max-width: 767px) {
  .product-head-selector__image-desktop {
    display: none;
  }
  
  .product-head-selector__image-mobile {
    display: block;
  }
}

.product-head-selector__image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-head-selector__image:hover {
  transform: scale(1.05);
}

.product-head-selector__image.loading {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.product-head-selector__image.loaded {
  opacity: 1;
}

.product-head-selector__text-content {
  max-width: 500px;
  margin: 0 auto;
}

.product-head-selector__heading {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #000000;
  line-height: 1.2;
  font-family: 'Poppins', sans-serif;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* 标题上方的小图标 */
.product-head-selector__intro-icon {
  display: block;
  width: 36px;
  height: 36px;
  margin: 0 auto 12px;
}

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

.product-head-selector__description {
  font-size: 18px;
  color: rgba(0, 0, 0, 0.6);
  margin-bottom: 30px;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.product-head-selector__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 40px;
  background: var(--color-primary-blue, #2286fe);
  color: #ffffff;
  text-decoration: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-transform: capitalize;
  letter-spacing: 0.3px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid var(--color-primary-blue, #2286fe);
  font-family: 'Poppins', sans-serif;
  animation: fadeInUp 0.8s ease-out 0.8s both;
  box-shadow: 0 4px 16px rgba(34, 134, 254, 0.3);
}

.product-head-selector__button:hover {
  background: transparent;
  color: var(--color-primary-blue, #2286fe);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 134, 254, 0.4);
}

/* ========================================
   Swiper Customization
======================================== */
.product-head-selector .swiper {
  overflow: visible;
}

.product-head-selector .swiper-slide {
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.product-head-selector .swiper-slide-active {
  opacity: 1;
}

.product-head-selector-tab-swiper .swiper-slide {
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.product-head-selector-tab-swiper .swiper-slide-active {
  opacity: 1;
}

.product-head-selector .swiper-button-next,
.product-head-selector .swiper-button-prev,
.product-head-selector-tab-swiper .swiper-button-next,
.product-head-selector-tab-swiper .swiper-button-prev {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  color: var(--color-body, #151515);
  margin-top: -22px;
  z-index: 3; /* 防止被上层容器裁切 */
}

.product-head-selector .swiper-button-next:after,
.product-head-selector .swiper-button-prev:after,
.product-head-selector-tab-swiper .swiper-button-next:after,
.product-head-selector-tab-swiper .swiper-button-prev:after {
  font-size: 16px;
  font-weight: bold;
}

.product-head-selector .swiper-button-next,
.product-head-selector-tab-swiper .swiper-button-next {
  right: 16px; /* 放到容器内部，避免 overflow 裁切 */
}

.product-head-selector .swiper-button-prev,
.product-head-selector-tab-swiper .swiper-button-prev {
  left: 16px; /* 放到容器内部，避免 overflow 裁切 */
}

.product-head-selector .swiper-pagination,
.product-head-selector-tab-swiper .swiper-pagination {
  position: relative;
  margin-top: 20px;
}

.product-head-selector .swiper-pagination-bullet,
.product-head-selector-tab-swiper .swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  background: #cccccc;
  opacity: 1;
  margin: 0 4px;
}

.product-head-selector .swiper-pagination-bullet-active,
.product-head-selector-tab-swiper .swiper-pagination-bullet-active {
  background: var(--color-body, #151515);
}

/* ========================================
   Additional Animations & Effects
======================================== */

/* Tab Ripple Effect */
.tab-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(34, 134, 254, 0.3);
  transform: translate(-50%, -50%) scale(0);
  animation: ripple 0.6s ease-out;
  pointer-events: none;
  width: 100px;
  height: 100px;
}

@keyframes ripple {
  to {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

/* Section Entrance Animation */
.product-head-selector {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-head-selector.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Swiper Customization Enhanced */
.product-head-selector .swiper-pagination-bullet,
.product-head-selector-tab-swiper .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background: rgba(34, 134, 254, 0.3);
  opacity: 1;
  margin: 0 6px;
  transition: all 0.3s ease;
}

.product-head-selector .swiper-pagination-bullet-active,
.product-head-selector-tab-swiper .swiper-pagination-bullet-active {
  background: var(--color-primary-blue, #2286fe);
  transform: scale(1.2);
}

/* Loading States Enhanced */
.product-head-selector__slide.loading {
  pointer-events: none;
}

.product-head-selector__slide.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

/* ========================================
   Responsive Design
======================================== */

/* Tablet */
@media screen and (min-width: 768px) {
  .product-head-selector__title {
    font-size: 42px;
  }

  .product-head-selector__subtitle {
    font-size: 18px;
  }

  .product-head-selector__content {
    padding: 40px 60px;
  }

  .product-head-selector__decorative-icons {
    top: 30px;
    left: 30px;
  }

  .product-head-selector__decorative-icon {
    width: 100px;
    height: 100px;
  }

  .product-head-selector__decorative-icon img,
  .product-head-selector__decorative-icon svg {
    width: 50px;
    height: 50px;
  }

  .product-head-selector__tabs {
    gap: 60px;
  }

  .product-head-selector__tab {
    font-size: 20px;
    padding: 20px 0;
    min-width: 150px;
  }

  .product-head-selector__slide {
    padding: 24px;
  }

  .product-head-selector__image-container {
    max-width: 500px;
    margin-bottom: 32px;
    border-radius: 24px;
  }

  .product-head-selector__heading {
    font-size: 36px;
    margin-bottom: 20px;
  }

  .product-head-selector__description {
    font-size: 20px;
    margin-bottom: 30px;
  }

  .product-head-selector__button {
    padding: 14px 35px;
    font-size: 16px;
  }
}

/* Desktop */
@media screen and (min-width: 1068px) {
 

  .product-head-selector__content {
    padding: 32px 56px;
  }

  .product-head-selector__decorative-icons {
    top: 40px;
    left: 40px;
  }

  .product-head-selector__title {
    font-size: 48px;
  }

  .product-head-selector__subtitle {
    font-size: 20px;
  }

  .product-head-selector__tabs {
    gap: 60px;
  }

  .product-head-selector__tab {
    font-size: 22px;
    min-width: 180px;
  }

  .product-head-selector__slide {
    padding: 32px;
  }

  .product-head-selector__image-container {
    max-width: 600px;
    font-size: 22px;
    margin-bottom: 40px;
  }

  .product-head-selector__button {
    padding: 18px 50px;
    font-size: 18px;
  }

  /* Hide navigation arrows on desktop hover */
  .product-head-selector .swiper-button-next,
  .product-head-selector .swiper-button-prev,
  .product-head-selector-tab-swiper .swiper-button-next,
  .product-head-selector-tab-swiper .swiper-button-prev {
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .product-head-selector:hover .swiper-button-next,
  .product-head-selector:hover .swiper-button-prev,
  .product-head-selector:hover .product-head-selector-tab-swiper .swiper-button-next,
  .product-head-selector:hover .product-head-selector-tab-swiper .swiper-button-prev {
    opacity: 1;
  }
}

/* Extra Large Screens */
@media screen and (min-width: 1400px) {
  .product-head-selector {
    max-width: 1400px;
  }

  .product-head-selector__image-container {
    max-width: 700px;
  }
}

/* ========================================
   Loading States
======================================== */
.product-head-selector__image.loading {
  opacity: 0.5;
}

.product-head-selector__slide.loading {
  pointer-events: none;
}

/* ========================================
   Accessibility
======================================== */
.product-head-selector__tab:focus {
  outline: 2px solid var(--color-accent, #151515);
  outline-offset: 4px;
}

.product-head-selector__button:focus {
  outline: 2px solid var(--color-accent, #151515);
  outline-offset: 2px;
}

/* Mobile Responsive */
@media screen and (max-width: 767px) {

  .product-head-selector__content {
    padding: 0;
    margin-top: 0;
  }

  .product-head-selector__decorative-icons {
    display: none;
  }

  .product-head-selector__tabs {
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .product-head-selector__tab {
    font-size: 16px;
    padding: 12px 0;
    min-width: 100px;
  }

  .product-head-selector__slide {
    padding: 30px 15px;
  }

  .product-head-selector__heading {
    font-size: 28px;
    margin-bottom: 15px;
  }

  .product-head-selector__description {
    font-size: 16px;
    margin-bottom: 25px;
    line-height: 1.5;
  }

  .product-head-selector__image-container {
    max-width: 320px;
    margin-bottom: 30px;
    border-radius: 15px;
  }

  .product-head-selector__button {
    padding: 14px 35px;
    font-size: 15px;
  }

  /* 移动端：箭头更靠内，避免窄屏遮挡 */
  .product-head-selector .swiper-button-next,
  .product-head-selector-tab-swiper .swiper-button-next {
    right: 8px;
  }
  .product-head-selector .swiper-button-prev,
  .product-head-selector-tab-swiper .swiper-button-prev {
    left: 8px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .product-head-selector,
  .product-head-selector__tab,
  .product-head-selector__image,
  .product-head-selector__button,
  .product-head-selector__slide {
    animation: none !important;
    transition: none !important;
  }

  .product-head-selector__slide {
    opacity: 1;
    transform: none;
  }

  .product-head-selector {
    opacity: 1;
    transform: none;
  }
}