/*
Theme Name: Aper Theme
Author: Neo
Version: 1.0
*/

:root {
  --bg: #121212;
  --fg: #ffffff;
  --accent: #f0f0f0;
  --gap: 24px;
  --container: 1400px;
  --transition: 0.3s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}

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

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

/* 头部和导航 */
/* 头部和导航 —— 控制 header 上下左右内边距（影响 logo 和导航栏的上下距离） */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(18, 18, 18, 0.9);
  backdrop-filter: blur(10px);
  padding: 20px 60px; /* ← 这里的20px是上下边距，60px是左右边距，想调上下距离就改前面的数值 */
  box-sizing: border-box;
}


.main-nav {
  /* margin-left: auto; 移除让整体靠右 */
  margin-right: 0;
  padding-right: 0;
  padding-left: 32px;
}

.logo-container {
  display: flex;
  align-items: center;
  padding-left: 0;
}
.logo {
  height: 36px;
  width: auto;
}

nav.main-nav {
  display: flex;
  gap: 32px;
  position: relative;
}

/* 多级菜单样式 */
.main-menu {
  display: flex;
  gap: 32px;
  list-style: none;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
  margin: 0 32px 0 0; /* 右侧留白 */
  padding: 0;
  position: relative;
  height: 100%;
}

.main-menu > li {
  position: relative;
}

.main-menu > li > a {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.75rem;
  font-weight: 300;
  position: relative;
  padding: 5px 0;
  display: block;
}

.main-menu > li > a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--fg);
  transition: var(--transition);
}

.main-menu > li > a:hover::after,
.main-menu > li.current-menu-item > a {
  width: 100%;
}

/* 下拉菜单，仅显示一级 */
.main-menu li ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: rgba(18, 18, 18, 0.98);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  z-index: 999;
  padding: 10px 0;
}

.main-menu li:hover > ul {
  display: block;
}

.main-menu li ul li {
  position: relative;
}

.main-menu li ul li a {
  color: #fff;
  font-size: 0.75rem;
  padding: 8px 24px;
  display: block;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  transition: background 0.2s;
}

.main-menu li ul li a:hover {
  background: #232323;
  color: var(--accent);
}

/* 隐藏二级及以下的子菜单 */
/* 默认隐藏三级及以上菜单 */
.main-menu li ul li ul {
  display: none;
  position: absolute;
  left: 100%;
  top: 0;
  min-width: 180px;
  background: rgba(18, 18, 18, 0.98);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  z-index: 999;
  padding: 10px 0;
}

/* 悬停二级菜单时显示三级菜单 */
.main-menu li ul li:hover > ul {
  display: block;
}

nav a {
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.75rem;
  font-weight: 300;
  position: relative;
  padding: 5px 0;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

/* 页面主标题（如照片标题）—— 控制 h1 字体大小、字重、字距等 */
h1 {
  font-size: 0.85rem; /* ← 这里是标题字体大小，建议比导航栏略大即可，比如 0.8rem~1rem */
  font-family: 'Helvetica Neue', Arial, sans-serif; /* ← 字体型号，和导航栏一致 */
  font-weight: 300; /* ← 字体粗细，和导航栏一致 */
  letter-spacing: 1.5px;
  text-align: center;
  margin: 40px 0 32px 0;
  text-transform: uppercase;
}


nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--fg);
  transition: var(--transition);
}

nav a:hover::after,
nav a.current-menu-item {
  width: 100%;
}

/* 主内容区域 */
main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 120px 5% 80px;
}

/* 首页画廊 */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: calc(var(--gap) * 2);
  margin-bottom: 80px;
}

.featured-grid figure {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.featured-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.featured-grid figure:hover img {
  transform: scale(1.05);
}

/* 首页大图/画廊图片下方说明文字（caption）样式 */
.featured-grid figcaption {
  position: absolute;
  bottom: 40px; /* ← 控制 caption 距离图片底部的距离 */
  left: 0;
  width: 100%;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 1rem; /* ← 这里是图片 caption 字体大小，想变小/大就改这里 */
  font-weight: 300;
  color: var(--fg);
  padding: 0 20px;
}


/* 分类页面 */
.category-title {
  text-align: center;
  margin: 40px 0 80px;
  font-weight: 300;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.albums-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--gap);
  margin-bottom: 80px;
}

.albums-grid figure {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.albums-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.albums-grid figure:hover img {
  transform: scale(1.05);
}

/* 相册页图片下方说明文字（caption）样式 */
.albums-grid figcaption {
  position: absolute;
  bottom: 30px; /* ← 控制 caption 距离图片底部的距离 */
  left: 0;
  width: 100%;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 1rem; /* ← 这里是图片 caption 字体大小，想变小/大就改这里 */
  padding: 0 20px;
}


/* 单个相册页面 */
.album-title {
  text-align: center;
  margin: 40px 0 80px;
  font-weight: 300;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.gallery-item {
  margin-bottom: var(--gap);
  aspect-ratio: 1;
}

.gallery-item img,
.gallery-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Masonry Gallery (变化的高度) */
.masonry-gallery {
  column-count: 3;
  column-gap: var(--gap);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--gap);
}

/* 相册描述 */
.album-description {
  max-width: 800px;
  margin: 60px auto;
  text-align: center;
  font-weight: 300;
  line-height: 1.8;
}

/* 页脚 */
footer {
  padding: 80px 5% 40px;
  text-align: center;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-bottom: 30px;
}

.social-links a {
  font-size: 0.8rem;
  letter-spacing: 1px;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.social-links a:hover {
  opacity: 1;
}

/* 响应式设计 */
@media (max-width: 992px) {
  .gallery, 
  .masonry-gallery {
    column-count: 2;
  }
  
  .featured-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  header {
    padding: 20px 5%;
    flex-direction: column;
    gap: 15px;
  }
  .main-nav {
    padding-left: 0;
    padding-right: 0;
  }
  .logo-container {
    padding-left: 0;
  }
  nav {
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .albums-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

@media (max-width: 576px) {
  .gallery,
  .masonry-gallery {
    column-count: 1;
  }
  
  .featured-grid figcaption,
  .category-title,
  .album-title {
    font-size: 1.2rem;
  }
}

/* PhotoSwipe 定制样式 */
.pswp__bg {
  background-color: rgba(18, 18, 18, 0.95) !important;
}