/* ==========================================
   css/style.css
   Yulon Apparel — 全局样式表
   包含：CSS 变量 / 基础重置 / 组件样式 / 动画 / 响应式
   ========================================== */

/* ==========================================
   1. CSS 变量（设计系统）
   ========================================== */
:root {
  /* 颜色 */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-green-500: #22c55e;
  --color-green-600: #16a34a;
  --color-red-500: #ef4444;
  --color-red-600: #dc2626;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);

  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-slower: 500ms ease;

  /* 字体 */
  --font-sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;

  /* z-index 层级（统一管理） */
  --z-dropdown: 50;
  --z-sticky: 60;
  --z-modal: 100;
  --z-popup: 200;
  --z-toast: 300;
}

/* ==========================================
   2. 基础重置 & 全局样式
   ========================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  font-family: inherit;
}

/* 选中样式 */
::selection {
  background: var(--color-black);
  color: var(--color-white);
}

/* 焦点样式 */
:focus-visible {
  outline: 2px solid var(--color-black);
  outline-offset: 2px;
}

/* ==========================================
   3. 性能优化
   ========================================== */
#heroProgress {
  will-change: width;
}

.hero-slide {
  will-change: opacity, transform;
}

#topHeader {
  will-change: transform, box-shadow;
}

#mainNav {
  will-change: transform;
}

/* ==========================================
   4. Header
   ========================================== */

/* 滚动隐藏 Header */
.hide-header {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

/* ==========================================
   5. 导航栏 Mega Menu
   ========================================== */

/* Mega Menu 容器 */
.mega-menu-container {
  position: relative;
}

/* Mega Menu 下拉面板 */
.mega-menu-dropdown {
  pointer-events: none;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.mega-menu-dropdown.visible {
  pointer-events: auto;
}

/* Mega Menu 菜单项 */
.mega-menu-item {
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
}

.mega-menu-item:hover {
  background-color: var(--color-gray-100);
}

/* ==========================================
   6. 移动端菜单
   ========================================== */

#mobileMenuBtn {
  transition: transform var(--transition-base);
}

#mobileMenu {
  transition:
    opacity var(--transition-base),
    transform var(--transition-base);
  transform-origin: top center;
}

#mobileMenu:not(.hidden) {
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   7. Hero Slider
   ========================================== */

.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

#heroSlider {
  overflow: hidden;
}

/* ==========================================
   8. 分类缩略图
   ========================================== */

.category-item {
  transition: transform var(--transition-base);
}

.category-item:hover {
  transform: translateY(-2px);
}

.category-img {
  transition:
    border var(--transition-base),
    box-shadow var(--transition-base);
  border: 2px solid transparent;
}

.category-item:hover .category-img {
  border-color: var(--color-black);
  box-shadow: var(--shadow-md);
}

.category-text {
  transition: color var(--transition-base);
}

/* ==========================================
   9. 产品媒体
   ========================================== */

/* 缩略图项 */
.thumbnail-item {
  transition: all var(--transition-base);
  cursor: pointer;
}

.thumbnail-item:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.thumbnail-item.ring-2 {
  border-color: var(--color-black) !important;
}

/* 主图过渡 */
#mainImage,
#mainVideo {
  transition: opacity var(--transition-base);
}

/* ==========================================
   10. 颜色按钮
   ========================================== */

.color-btn {
  transition: all var(--transition-fast);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-white);
  cursor: pointer;
}

.color-btn:hover {
  border-color: var(--color-gray-400);
}

.color-btn.active {
  border-color: var(--color-black);
  background: var(--color-gray-100);
  font-weight: 600;
}

/* ==========================================
   11. 筛选按钮
   ========================================== */

.filter-btn {
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  background: var(--color-white);
  cursor: pointer;
}

.filter-btn:hover {
  background: var(--color-black);
  color: var(--color-white);
}

.filter-btn.active {
  background: var(--color-black);
  color: var(--color-white);
}

/* ==========================================
   12. 数量选择器
   ========================================== */

.qty-decrement,
.qty-increment {
  background: transparent;
  border: none;
  font-size: 1.125rem;
  transition: background var(--transition-fast);
  user-select: none;
}

.qty-decrement:hover,
.qty-increment:hover {
  background: var(--color-gray-100);
}

/* ==========================================
   13. 右侧分类目录
   ========================================== */

/* 目录容器 */
.catalogue-container ul li {
  transition: background var(--transition-fast);
}

/* 子菜单项 */
.catalogue-container .submenu a {
  transition:
    background var(--transition-fast),
    padding-left var(--transition-fast);
}

.catalogue-container .submenu a:hover {
  background: var(--color-gray-100);
  padding-left: 1.25rem;
}

/* ==========================================
   14. 表单样式
   ========================================== */

/* 输入框基础 */
input[type="text"],
input[type="email"],
input[type="number"],
input[type="tel"],
textarea,
select {
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  font-family: inherit;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-black) !important;
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* 验证错误 */
.form-error {
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 文件输入 */
input[type="file"] {
  cursor: pointer;
}

input[type="file"]::file-selector-button {
  margin-right: 1rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-gray-100);
  cursor: pointer;
  transition: background var(--transition-fast);
}

input[type="file"]::file-selector-button:hover {
  background: var(--color-gray-200);
}

/* 提交按钮 */
button[type="submit"] {
  transition: all var(--transition-base);
}

button[type="submit"]:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* 表单反馈 */
.form-feedback {
  animation: fadeInUp 0.3s ease-out;
}

/* ==========================================
   15. 弹窗样式（整合 popup.css）
   ========================================== */

/* 弹窗遮罩 */
.popup,
#inquiryPopup {
  position: fixed;
  inset: 0;
  z-index: var(--z-popup);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

/* 隐藏状态 */
.popup.hidden,
#inquiryPopup.hidden {
  display: none;
}

/* 弹窗遮罩背景 */
.popup-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* 弹窗内容 */
.popup-content {
  position: relative;
  background: var(--color-white);
  padding: var(--spacing-xl);
  width: 90%;
  max-width: 420px;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  z-index: 1;
  animation: fadeInUp 0.3s ease-out;
}

/* 弹窗关闭按钮 */
.popup-close {
  position: absolute;
  right: 12px;
  top: 12px;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.popup-close:hover {
  color: var(--color-gray-700);
}

/* 弹窗内表单 */
.popup textarea,
#popupMessage {
  width: 100%;
  min-height: 80px;
  margin: 12px 0;
  padding: 12px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  resize: vertical;
  font-family: inherit;
}

/* 弹窗操作按钮 */
.popup-actions {
  display: flex;
  gap: 10px;
  margin-top: var(--spacing-md);
}

.popup-actions a,
.popup-actions button {
  flex: 1;
  text-align: center;
  padding: 12px;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: background var(--transition-fast);
  cursor: pointer;
}

.popup-actions a:hover,
.popup-actions button:hover {
  background: var(--color-gray-800);
}

/* ==========================================
   16. 回到顶部按钮
   ========================================== */

#scrollToTopBtn {
  transition:
    opacity var(--transition-slow),
    visibility var(--transition-slow),
    background var(--transition-fast);
}

#scrollToTopBtn:hover {
  background: var(--color-black);
}

/* ==========================================
   17. WhatsApp 浮动按钮
   ========================================== */

.whatsapp-float {
  right: 2px !important;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.whatsapp-float:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 脉冲动画（可选） */
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(34, 197, 94, 0);
  }
}

.whatsapp-float.pulse {
  animation: pulse 2s infinite;
}

/* ==========================================
   18. 动画
   ========================================== */

/* 淡入上移 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.3s ease-out;
}

/* 淡入 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* 缩放进入 */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-scale-in {
  animation: scaleIn 0.2s ease-out;
}

/* 骨架屏加载 */
@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-100) 25%,
    var(--color-gray-200) 50%,
    var(--color-gray-100) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ==========================================
   19. 响应式
   ========================================== */

/* 平板 */
@media (max-width: 1024px) {
  .mega-menu-dropdown {
    width: 90vw !important;
    max-width: 500px;
  }
}

/* 手机 */
@media (max-width: 768px) {
  /* 导航栏 */
  #mobileMenuBtn {
    display: block !important;
  }

  /* Mega Menu 移动端全宽 */
  .mega-menu-dropdown {
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    top: auto !important;
    bottom: 0;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0 !important;
    max-height: 70vh;
    overflow-y: auto;
  }

  .mega-menu-dropdown .flex {
    flex-direction: column;
  }

  .mega-menu-dropdown .w-1\/3 {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-gray-200);
  }

  .mega-menu-dropdown .w-2\/3 {
    width: 100%;
  }

  /* Hero */
  .hero-slide h2 {
    font-size: 1.75rem !important;
  }

  /* 弹窗 */
  .popup-content {
    width: 95%;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
  }

  /* 产品网格 */
  .grid-cols-2 {
    gap: var(--spacing-sm);
  }
}

/* 小手机 */
@media (max-width: 480px) {
  .hero-slide h2 {
    font-size: 1.5rem !important;
  }

  .hero-slide .bg-black\/50 {
    padding: var(--spacing-md) !important;
  }
}

/* ==========================================
   20. 打印样式
   ========================================== */

@media print {
  nav,
  footer,
  .whatsapp-float,
  #scrollToTopBtn,
  #inquiryPopup,
  .popup {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
  }
}

/* ==========================================
   21. 可访问性
   ========================================== */

/* 屏幕阅读器专用 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* reCAPTCHA 徽章 */
.grecaptcha-badge {
  bottom: 25px !important;
  right: 0 !important;
  transform: scale(0.75) !important;
  transform-origin: bottom right !important;
}

/* WhatsApp 按钮 */
.whatsapp-float {
  right: 2px !important;
}

/* ==========================================
   22. 品牌跑马灯
   ========================================== */
.marquee-section {
  padding: 40px 0;
  background: #fff;
  overflow: hidden;
  width: 100%;
}

.marquee-label {
  max-width: 1200px;
  margin: 0 auto 16px;
  padding: 0 24px;
  text-align: center;
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
  letter-spacing: normal;
  text-transform: none;
}

.marquee-wrapper {
  max-width: 72rem;
  margin: 0 auto;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  width: max-content;
  flex-shrink: 0;
  animation: marqueeScroll 14s linear infinite !important;
}

.marquee-track img {
  height: 240px;
  width: auto;
  margin: 0 12px;
  object-fit: cover;
  border-radius: 12px;
  opacity: 1;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.marquee-track img:hover {
  transform: scale(1.1);
}

@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@media (max-width: 640px) {
  .marquee-track img {
    margin: 0 8px;
  }
  .marquee-section {
    padding: 24px 0;
  }
}

/* You May Also Like — 跑马灯 */
#relatedTrackWrapper {
  overflow: hidden;
  width: 100%;
}

#relatedTrack {
  display: flex;
  width: max-content;
  flex-shrink: 0;
  gap: 10px;
  animation: relatedMarquee 40s linear infinite !important;
}

#relatedTrack:hover {
  animation-play-state: paused;
}

@keyframes relatedMarquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* ==========================================
   23. Popular Products 分类筛选模块
   ========================================== */
.popular-section {
  padding: 24px 0;
}

.popular-title {
  text-align: center;
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 8px;
}

.popular-subtitle {
  text-align: center;
  font-size: 1rem;
  color: #6b7280;
  margin-bottom: 32px;
}

.popular-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}

.popular-tab {
  padding: 8px 20px;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  background: #fff;
  color: #4b5563;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.popular-tab:hover {
  border-color: #111827;
  color: #111827;
}

.popular-tab.active {
  background: #111827;
  color: #fff;
  border-color: #111827;
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.popular-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.popular-card:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.popular-card-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.popular-card:hover .popular-card-img {
  transform: scale(1.05);
}

.popular-card-body {
  padding: 16px;
}

.popular-card-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: #111827;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  overflow: hidden;
}

.popular-card-desc {
  font-size: 0.8rem;
  color: #6b7280;
}

/* 平板 */
@media (max-width: 1024px) {
  .popular-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 手机 */
@media (max-width: 640px) {
  .popular-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 12px;
  }
  .popular-card-img {
    height: 160px;
  }
  .popular-tab {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  /* 移动端菜单按钮 */
  #mobileMenuBtn {
    padding: 12px;
    min-width: 48px;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #getQuoteBtn {
    min-height: 48px;
    display: flex;
    align-items: center;
    white-space: nowrap;
  }
}

/* ==========================================
   24. 证书模块
   ========================================== */
.cert-section {
  padding: 24px 0;
  overflow: hidden;
}

.cert-title {
  text-align: center;
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 8px;
}

.cert-subtitle {
  text-align: center;
  font-size: 1rem;
  color: #6b7280;
  margin-bottom: 32px;
}

.cert-wrapper {
  overflow: hidden;
}

.cert-track {
  display: flex;
  width: max-content;
  flex-shrink: 0;
  animation: certScroll 9s linear infinite !important;
}

.cert-track:hover {
  animation-play-state: paused;
}

.cert-track img {
  height: 320px;
  width: auto;
  margin: 0 16px;
  border-radius: 12px;
  flex-shrink: 0;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.cert-track img:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 证书放大弹窗 */
.cert-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
}

.cert-lightbox.show {
  display: flex;
}

.cert-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 8px;
}

.cert-lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
}

@keyframes certScroll {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0%);
  }
}

@media (max-width: 640px) {
  .cert-track img {
    height: 180px;
    margin: 0 10px;
  }
  .cert-section {
    padding: 32px 0;
  }
}