/* 
 * Project: Fashion Visual Website
 * Theme: Modern Minimalist
 * Author: HAISNAP
 */

/* =========================================
   1. 全局基础设置 (Global Base)
   ========================================= */
:root {
  --color-bg: #F5F5F5;
  --color-text: #2C2C2C;
  --color-white: #FFFFFF;
  --font-primary: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 隐藏滚动条但允许滚动 (Webkit) */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #E5E5E5;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #CCCCCC;
}

/* =========================================
   2. 通用动画与交互 (Animations & Interactions)
   ========================================= */

/* 图片容器通用样式 - 用于溢出隐藏 */
.img-container {
  overflow: hidden;
  position: relative;
}

/* 图片悬停放大效果 */
.hover-zoom img {
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}
.hover-zoom:hover img {
  transform: scale(1.05);
}

/* 页面/元素淡入动画 */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease-out forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 懒加载模糊过渡 */
img.lazy-load {
  opacity: 0;
  filter: blur(10px);
  transition: opacity 0.5s ease-in-out, filter 0.5s ease-in-out;
}
img.lazy-loaded {
  opacity: 1;
  filter: blur(0);
}

/* =========================================
   3. 组件样式 (Components)
   ========================================= */

/* --- 导航栏 --- */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--color-text);
  transition: width 0.3s ease;
}
.nav-link:hover::after {
  width: 100%;
}

/* --- 轮播图 (Carousel) --- */
.carousel-container {
  position: relative;
  overflow: hidden;
  height: 90vh; /* 视口高度 */
  width: 100%;
}

.carousel-track {
  display: flex;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.carousel-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 轮播图遮罩 */
.carousel-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(to top, rgba(0,0,0,0.4), transparent);
  pointer-events: none;
}

/* 轮播指示器 */
.carousel-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 20;
}

.dot {
  width: 40px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.dot.active {
  background-color: #FFFFFF;
}

/* --- 瀑布流布局 (Masonry - for Series page) --- */
.masonry-grid {
  column-count: 1;
  column-gap: 1.5rem;
}
@media (min-width: 640px) {
  .masonry-grid { column-count: 2; }
}
@media (min-width: 1024px) {
  .masonry-grid { column-count: 3; }
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  position: relative;
}

/* --- 模态框 (Modal - for Pieces page) --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.95); /* 极简风格使用白色半透明 */
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  width: 90%;
  max-width: 1200px;
  height: 85vh;
  background: transparent;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.4s ease-out;
}

.modal-overlay.active .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 2rem;
  cursor: pointer;
  z-index: 101;
  transition: transform 0.3s ease;
  mix-blend-mode: difference; /* 确保在黑白背景下都可见 */
  color: #fff;
}
.modal-close:hover {
  transform: rotate(90deg);
}

/* --- 移动端菜单 (Mobile Menu) --- */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: #fff;
  z-index: 40;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.mobile-menu-overlay.active {
  transform: translateX(0);
}

/* =========================================
   4. 特定页面微调
   ========================================= */

/* 风格指南色彩板 */
.color-swatch {
  width: 100%;
  height: 120px;
  transition: transform 0.3s ease;
}
.color-swatch:hover {
  transform: translateY(-5px);
}

/* 设计理念页 - 时间线节点 */
.timeline-node::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 0;
  width: 10px;
  height: 10px;
  background-color: var(--color-text);
  border-radius: 50%;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .carousel-container {
    height: 70vh;
  }
  
  .carousel-caption h2 {
    font-size: 2rem;
  }
}