/* ============================================================
   归之藏 · 全站公共样式（以 1920px 设计稿为基准等比缩放）
   ============================================================ */

:root {
  --u: min(1px, calc(100vw / 1920));
  /* 金色系 */
  --gold: #c9a96e;          /* 装饰金（首页标题/分隔线） */
  --gold-active: #a98e5d;   /* 导航激活金 */
  --gold-text: #9c742b;     /* 内页文字金 */
  --nav-gray: #bfbfbf;
  --ink: #111;
  --muted: #a9a9a9;
  --tab-gray: #7b7b7a;
  --contact: #b0a8a8;
  --header-h: 74;
  --footer-h: 260;
}

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

html, body { background: #1b1b1b; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  overflow-x: hidden;
}

/* 浅色内页：两侧超宽区域为白底 */
body.page-light { background: #fff; }

a { text-decoration: none; color: inherit; }
img { display: block; }

.serif {
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
}

/* 1920 设计稿内容舞台，居中 */
.stage {
  position: relative;
  width: calc(var(--u) * 1920);
  margin: 0 auto;
}

/* ============ 顶部导航 ============ */
.site-header {
  width: 100%;
  background: #1b1b1b url("../assets/header-bg.png") center top / auto 100% repeat-x;
  border-bottom: 1px solid rgba(0, 0, 0, .45);
}
.header-stage { height: calc(var(--u) * 74); }

.header-logo {
  position: absolute;
  left: calc(var(--u) * 250);
  top: 0;
  width: calc(var(--u) * 230);
  height: calc(var(--u) * 74);
}
.header-logo img { width: 100%; height: 100%; }

.main-nav { 
  position: absolute; 
  /* inset: 0;  */
}
.main-nav a {
  position: absolute;
  top: 0;
  height: calc(var(--u) * 74);
  line-height: calc(var(--u) * 74);
  transform: translateX(-50%);
  font-size: calc(var(--u) * 18);
  font-weight: 600;
  letter-spacing: calc(var(--u) * 2);
  color: var(--nav-gray);
  transition: color .25s ease;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--gold); }
.main-nav a.active { color: var(--gold-active); }

/* ============ 金色胶囊按钮 ============ */
.gold-btn {
  position: absolute;
  width: calc(var(--u) * 178);
  height: calc(var(--u) * 52);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: calc(var(--u) * 26);
  background: linear-gradient(90deg, #d3b77f 0%, #c4a46a 50%, #ab8e56 100%);
  color: #f8f8f8;
  font-size: calc(var(--u) * 18);
  font-weight: 600;
  letter-spacing: calc(var(--u) * 4);
  transition: filter .25s ease, transform .15s ease;
}
.gold-btn:hover { filter: brightness(1.08); }
.gold-btn:active { transform: scale(.97); }

/* ============ 页脚 ============ */
.site-footer {
  width: 100%;
  background: #272727 url("../assets/footer-bg.png") center top / auto 100% repeat-x;
}
.footer-stage { height: calc(var(--u) * 260); }

.footer-contact {
  position: absolute;
  left: calc(var(--u) * 261);
  top: calc(var(--u) * 67);
  font-size: calc(var(--u) * 16);
  line-height: calc(var(--u) * 24);
  letter-spacing: calc(var(--u) * .5);
  color: var(--contact);
  white-space: nowrap;
}

.footer-logo {
  position: absolute;
  left: calc(var(--u) * 1480);
  top: calc(var(--u) * 39);
  width: calc(var(--u) * 170);
  height: calc(var(--u) * 171);
}
.footer-logo img { width: 100%; height: 100%; }

/* ============================================================
   列表分页
   ============================================================ */
.gzc-pager {
  width: 100%;
  padding: calc(var(--u) * 10) 0 calc(var(--u) * 73);
}
.gzc-pager-stage {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: calc(var(--u) * 6);
  min-height: calc(var(--u) * 34);
}
.gzc-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: calc(var(--u) * 41);
  height: calc(var(--u) * 34);
  padding: 0 calc(var(--u) * 12);
  border-radius: calc(var(--u) * 4);
  background: #d2d0cc;
  color: #666;
  font-size: calc(var(--u) * 14);
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}
.gzc-page-btn:hover { background: #c8c6c2; color: #666; }
.gzc-page-btn.current { background: #ebdec8; color: #9c742b; }
.gzc-page-btn.dots { background: transparent; cursor: default; color: #a9a9a9; }

/* ============================================================
   空状态
   ============================================================ */
.gzc-empty {
  width: 100%;
  padding: calc(var(--u) * 140) 0;
  text-align: center;
  font-size: calc(var(--u) * 16);
  letter-spacing: calc(var(--u) * 1);
  color: var(--muted);
}

/* ============================================================
   详情页富文本与媒体（相册 / 视频 / 音频）
   ============================================================ */
.gzc-rich {
  font-size: calc(var(--u) * 16);
  line-height: calc(var(--u) * 30);
  letter-spacing: calc(var(--u) * .3);
  color: var(--ink);
  word-break: break-word;
}
.gzc-rich p { margin: 0 0 calc(var(--u) * 12); }
.gzc-rich h2,
.gzc-rich h3 {
  font-size: calc(var(--u) * 17);
  font-weight: 700;
  margin: calc(var(--u) * 24) 0 calc(var(--u) * 12);
}
.gzc-rich h2:first-child,
.gzc-rich h3:first-child { margin-top: 0; }
.gzc-rich ul,
.gzc-rich ol { margin: 0 0 calc(var(--u) * 12); padding-left: calc(var(--u) * 32); }
.gzc-rich li { margin-bottom: calc(var(--u) * 6); }
.gzc-rich img,
.gzc-rich iframe,
.gzc-rich video { max-width: 100%; height: auto; }
.gzc-rich a { color: var(--gold-text); text-decoration: underline; }

.gzc-media-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: calc(var(--u) * 20);
}
.gzc-media-grid a {
  display: block;
  overflow: hidden;
  border-radius: calc(var(--u) * 6);
  background: #f4f4f5;
}
.gzc-media-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform .35s ease;
}
.gzc-media-grid a:hover img { transform: scale(1.04); }

.gzc-media-list { display: flex; flex-direction: column; gap: calc(var(--u) * 24); }
.gzc-media-item-name {
  font-size: calc(var(--u) * 14);
  color: #666;
  margin-bottom: calc(var(--u) * 8);
  letter-spacing: calc(var(--u) * .3);
}
.gzc-media-list video {
  display: block;
  width: 100%;
  max-width: calc(var(--u) * 900);
  border-radius: calc(var(--u) * 6);
  background: #000;
}
.gzc-media-list audio { width: 100%; max-width: calc(var(--u) * 720); }

/* 多个视频：两列排布，单个时占满一行 */
.gzc-media-list.is-video {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: calc(var(--u) * 24) calc(var(--u) * 20);
}
.gzc-media-list.is-video .gzc-media-item:only-child { grid-column: 1 / -1; }
.gzc-media-list.is-video video { max-width: 100%; }

/* 多个音频：每条一行，带序号与文件名 */
.gzc-media-list.is-audio .gzc-media-item {
  padding-bottom: calc(var(--u) * 18);
  border-bottom: 1px solid #f0f1f4;
}
.gzc-media-list.is-audio .gzc-media-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

@media (max-width: 900px) {
  .gzc-media-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gzc-media-list.is-video { grid-template-columns: 1fr; }
}

/* ============================================================
   留言 / 追思留言
   ============================================================ */
.gzc-comments { width: 100%; }
.gzc-comments-title {
  font-size: calc(var(--u) * 17);
  font-weight: 700;
  color: #333;
  letter-spacing: calc(var(--u) * .5);
  margin: 0 0 calc(var(--u) * 20);
}
.gzc-comment-list { list-style: none; margin: 0 0 calc(var(--u) * 30); padding: 0; }
.gzc-comment-list .comment-body {
  padding: calc(var(--u) * 18) 0;
  border-bottom: 1px solid #f0f1f4;
  font-size: calc(var(--u) * 15);
  line-height: calc(var(--u) * 28);
  color: #333;
}
.gzc-comment-list .comment-meta {
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 12);
  margin-bottom: calc(var(--u) * 10);
  font-size: calc(var(--u) * 13);
  color: #888;
}
.gzc-comment-list .comment-author img { border-radius: 50%; width: calc(var(--u) * 36); height: calc(var(--u) * 36); }
.gzc-comment-list .comment-author .fn { font-style: normal; color: #9c742b; }
.gzc-comment-list .comment-list { list-style: none; padding-left: calc(var(--u) * 40); }
.gzc-comment-list .reply a {
  font-size: calc(var(--u) * 13);
  color: #9c742b;
  text-decoration: none;
}
.gzc-comments .comment-respond { margin-top: calc(var(--u) * 10); }
.gzc-comments .comment-reply-title {
  font-size: calc(var(--u) * 16);
  font-weight: 700;
  color: #333;
  margin: 0 0 calc(var(--u) * 14);
}
.gzc-comments .comment-form p { margin-bottom: calc(var(--u) * 12); }
.gzc-comments .comment-form label {
  display: block;
  font-size: calc(var(--u) * 13);
  color: #747474;
  margin-bottom: calc(var(--u) * 6);
}
.gzc-comments .comment-form input[type="text"],
.gzc-comments .comment-form input[type="email"],
.gzc-comments .comment-form input[type="url"],
.gzc-comments .comment-form textarea {
  width: 100%;
  max-width: calc(var(--u) * 726);
  border: 1px solid #e6e6e6;
  border-radius: calc(var(--u) * 4);
  padding: calc(var(--u) * 10) calc(var(--u) * 14);
  font-size: calc(var(--u) * 14);
  color: #333;
  font-family: inherit;
  background: #fff;
  outline: none;
  box-sizing: border-box;
}
.gzc-comments .comment-form textarea { height: calc(var(--u) * 140); resize: none; line-height: calc(var(--u) * 24); }
.gzc-comments .comment-form input:focus,
.gzc-comments .comment-form textarea:focus { border-color: #c9a96e; }
.gzc-comments .form-submit { margin-top: calc(var(--u) * 6); }
.gzc-comments .submit {
  width: calc(var(--u) * 115);
  height: calc(var(--u) * 40);
  border: none;
  border-radius: calc(var(--u) * 4);
  background: linear-gradient(135deg, #d3b77f 0%, #e8dec9 100%);
  color: #fff;
  font-size: calc(var(--u) * 16);
  letter-spacing: calc(var(--u) * 2);
  cursor: pointer;
}
.gzc-comments .submit:hover { opacity: .9; }

/* ---- 韫山亭二级下拉（时间录/归藏纪/结缘帖/藏家略/传音筒/铭勋台） ---- */
.nav-home {
  position: absolute;
  left: calc(var(--u) * 813);
  top: 0;
  width: calc(var(--u) * 142);
  height: calc(var(--u) * 378);
  pointer-events: none;
  z-index: 40;
}
.nav-home > a { pointer-events: auto; }
.nav-drop {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--u) * 74);   /* 从头部栏下沿开始悬挂，不遮住父项 */
  bottom: 0;
  background: #201c16 url("../assets/nav-drop-bg.png") center top / 100% 100% no-repeat;
  padding-top: calc(var(--u) * 26);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
  pointer-events: none;
}
.nav-home:hover .nav-drop { opacity: 1; visibility: visible; pointer-events: auto; }
.nav-drop a {
  position: relative;
  display: block;
  height: calc(var(--u) * 41.7);
  line-height: calc(var(--u) * 41.7);
  transform: none;
  left: auto;
  text-align: center;
  font-size: calc(var(--u) * 16);
  font-weight: 500;
  letter-spacing: calc(var(--u) * 1);
  color: #e8e4da;
  transition: color .2s ease;
}
.nav-drop a:hover { color: var(--gold); }
.nav-drop a.active { color: var(--gold-active); }