/* ============ GDARCHIVE · 白色 · 简约高级 ============ */
:root {
  --bg: #ffffff;
  --panel: #fafaf8;
  --line: #e6e4df;
  --line-strong: #d4d2cc;
  --text: #141414;
  --text-dim: #808080;
  --text-hover: #666666;
  /* --accent: #c8102e; */
  --accent-bg: rgba(200, 16, 46, .05);
  --radius: 0px;
  --shadow: 0 10px 34px rgba(20, 20, 20, .07);
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html { scrollbar-color: var(--line) var(--bg); }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- 顶部栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: 32px;
  padding: 0 40px;
  height: 64px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--sans);
  font-size: 21px;
  letter-spacing: .08em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.brand span { color: var(--text); }

.tabs { display: flex; gap: 2px; flex: 1; flex-wrap: wrap; align-items: center; overflow: visible; }

/* Dribbble 风格 Tab：wrapper + link，避免 a 嵌套 a */
.tab {
  position: relative;
  display: inline-flex; align-items: center;
  cursor: pointer;
  user-select: none;
}
.tab-link {
  display: inline-flex; align-items: center;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  letter-spacing: .02em;
  color: #111;
  background: none; border: none; font-family: inherit;
  transition: color .15s;
  white-space: nowrap;
  text-decoration: none;
}
.tab:hover .tab-link,
.tab-link:hover,
.tab:focus-within .tab-link { color: var(--text-hover); outline: none; }
.tab.active .tab-link { color: #111; }
.tab-link .caret {
  display: inline-flex; align-items: center;
  margin-left: 5px; opacity: .55;
}
.tab-link .caret svg { width: 12px; height: 12px; stroke-width: 2.2; }
.tab.reset-tab { border: 1px solid var(--line); margin-left: 14px; font-size: 12.5px; }

/* 管理员状态标识 */
.admin-chip {
  flex-shrink: 0;
  font-size: 12px; letter-spacing: .05em;
  color: #141414;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 14px;
  cursor: pointer;
  user-select: none;
  transition: background .15s, color .15s;
}
.admin-chip:hover { background: #f3f3f1; }
.admin-chip[hidden] { display: none; }

/* 悬浮下拉面板 */
.tab-menu {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 240px;
  max-width: 360px;
  background: #fff;
  border: 1px solid rgba(0,0,0,.06);
  border-radius: 4px;
  padding: 10px;
  box-shadow: 0 16px 50px rgba(0, 0, 0, .13);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
  z-index: 110;
}
/* 透明桥接，防止鼠标经过间隙时菜单收回 */
.tab-menu::before {
  content: ""; position: absolute; top: -7px; left: 0; right: 0; height: 10px;
}
.tab:hover .tab-menu,
.tab:focus-within .tab-menu,
.tab-menu:hover { opacity: 1; visibility: visible; transform: translateY(0); }
.tab-menu a {
  display: block; width: 100%;
  padding: 10px 16px;
  background: none; border: none;
  color: #333;
  font-family: inherit; font-size: 14px;
  text-align: left;
  border-radius: 9px;
  cursor: pointer;
  text-decoration: none;
  transition: color .12s, background .12s;
}
.tab-menu a:hover { color: var(--text-hover)}


/* ---------- 主体 ---------- */
.view { flex: 1; padding: 48px 56px 90px; max-width: 1560px; width: 100%; margin: 0 auto; }

/* .crumb {
  font-size: 12px; letter-spacing: .12em; color: var(--text-dim);
  margin-bottom: 26px; text-transform: uppercase;
}
.crumb b { color: var(--text); font-weight: 600; } */

.view-title {
  font-family: var(--sans);
  font-size: 38px; letter-spacing: 0em; font-weight: 600;
  margin-bottom: 8px;
}
.view-sub { color: var(--text-dim); font-size: 14px; letter-spacing: .02em; margin-bottom: 40px; }

/* 封面墙（Home / 大类层级） */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}
/* 封面卡片：无描边/背景，阴影加在图片后面，hover 不放大图片 */
.cover-card {
  display: flex; flex-direction: column;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  color: inherit;
}
.cover-card .card-media {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: 0px;
  background: var(--line-strong);
  box-shadow: var(--shadow);
  transition: box-shadow .25s;
}
.cover-card:hover .card-media { box-shadow: 0 20px 46px rgba(0,0,0,.11); }
.cover-card img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.cover-card .card-body {
  padding: 12px 2px 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.cover-card .name { font-family: var(--sans); font-size: 17px; letter-spacing: .02em; color: var(--text); }
.cover-card .meta { font-size: 12.5px; line-height: 1.5; color: var(--text-dim); }

/* 图片墙：默认只展示图片，无描边/背景 */
.photo-wall { columns: 2 230px; column-gap: 24px; }
.photo-item {
  position: relative;
  break-inside: avoid;
  margin-bottom: 24px;
  cursor: zoom-in;
}
.photo-item img {
  width: 100%; display: block;
  box-shadow: var(--shadow);
  transition: box-shadow .25s;
}
.photo-item:hover img { box-shadow: 0 20px 46px rgba(0,0,0,.11); }

/* hover 时图片内部下方出现遮罩文字描述 */
.photo-item .item-overlay {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 12px;
  padding: 40px 24px 24px;
  background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.55) 100%);
  color: #fff;
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}
.photo-item:hover .item-overlay { opacity: 1; pointer-events: auto; }
.photo-item .item-info { min-width: 0; }
.photo-item .item-title {
  font-size: 14px; font-weight: 500; color: #fff;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.photo-item .item-actions {
  display: flex; gap: 4px; flex-shrink: 0;
}
.photo-item .item-actions button {
  display: flex; align-items: center; gap: 4px;
  background: none; border: none; cursor: pointer;
  padding: 5px; border-radius: 4px;
  color: rgba(255,255,255,.85);
  transition: color .15s, background .15s;
}
.photo-item .item-actions button:hover { color: #fff; background: rgba(255,255,255,.18); }
.photo-item .item-actions .liked { color: #fff; }
.photo-item .item-actions .like-num { font-size: 11.5px; min-width: 8px; }

/* 图片操作菜单（仅管理员可见） */
.photo-item .item-menu {
  position: absolute; right: 12px; bottom: 44px;
  min-width: 130px;
  background: #fff; color: #222;
  border: 1px solid rgba(0,0,0,.08); border-radius: 10px;
  padding: 6px; box-shadow: 0 12px 36px rgba(0,0,0,.18);
  z-index: 20;
  opacity: 1; transform: translateY(0);
  transition: opacity .15s, transform .15s;
}
.photo-item .item-menu[hidden] { display: none; }
.photo-item .item-menu button {
  display: block; width: 100%;
  padding: 8px 12px; font-size: 13px;
  background: none; border: none; border-radius: 6px;
  text-align: left; color: #333; cursor: pointer;
  transition: background .12s;
}
.photo-item .item-menu button:hover { background: #f4f4f6; }
.photo-item .item-menu button.danger { color: #d33; }
.photo-item .item-menu button.danger:hover { background: #fff0f0; }

/* 空状态 */
.empty {
  padding: 90px 0; text-align: center; color: var(--text-dim);
  border: 1px dashed var(--line-strong); border-radius: var(--radius);
}
.empty b { display: block; font-family: var(--sans); font-size: 20px; color: var(--text); margin-bottom: 8px; }
.empty small { font-size: 13px; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(255, 255, 255, .97);
  display: flex; align-items: center; justify-content: center;
  padding: 48px;
  opacity: 0; transition: opacity .18s;
  pointer-events: none;
}
/* hidden 时真正隐藏，避免透明层拦截全页点击 */
.lightbox[hidden] { display: none !important; }
.lightbox.show { opacity: 1; pointer-events: auto; }
.lightbox img {
  max-width: min(92vw, 1100px);
  max-height: 82vh;
  border-radius: 0px;
  box-shadow: 0 30px 90px rgba(20, 20, 20, .22);
}
.lightbox figcaption {
  text-align: center; margin-top: 18px;
  color: var(--text-dim); font-size: 13.5px;
}
.lightbox-tools {
  display: flex; justify-content: center; gap: 10px;
  margin-top: 16px;
}
.lightbox-tools button {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-size: 12.5px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.lightbox-tools button:hover { border-color: var(--text); background: #fff; }
.lb-icon { display: inline-flex; }
.lb-icon svg { width: 16px; height: 16px; }
.lightbox-close {
  position: absolute; top: 18px; right: 26px;
  background: none; border: none; color: var(--text);
  font-size: 34px; cursor: pointer; line-height: 1;
}
.lightbox-prev, .lightbox-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: var(--panel); border: 1px solid var(--line-strong);
  color: var(--text); font-size: 24px; width: 48px; height: 48px;
  border-radius: 50%; cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.lightbox-prev { left: 28px; }
.lightbox-next { right: 28px; }
.lightbox-prev:hover, .lightbox-next:hover { background: var(--text); border-color: var(--text); color: #fff; }

/* ---------- 页脚 ---------- */
.footer {
  text-align: center; padding: 28px; font-size: 12px;
  color: var(--text-dim); border-top: 1px solid var(--line);
}

/* ---------- 管理员登录 ---------- */
.login-modal {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  background: rgba(20, 20, 20, .35);
  backdrop-filter: blur(4px);
}
.login-modal[hidden] { display: none; }
.login-box {
  width: 320px; max-width: calc(100vw - 40px);
  background: #fff; border: 1px solid var(--line);
  border-radius: 4px; padding: 30px 28px 26px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .18);
  display: flex; flex-direction: column; gap: 14px;
}
.login-title {
  font-size: 16px; font-weight: 600; letter-spacing: .04em;
  color: var(--text);
}
.login-box input {
  font-family: inherit; font-size: 14px;
  padding: 11px 14px;
  border: 1px solid var(--line-strong); border-radius: 4px;
  background: #fff; color: var(--text);
  outline: none; transition: border-color .15s;
}
.login-box input:focus { border-color: var(--text); }
.login-err { font-size: 12.5px; color: #c8102e; min-height: 16px; }
.login-btn {
  font-family: inherit; font-size: 14px; letter-spacing: .1em;
  padding: 11px 0; border: 1px solid var(--text);
  border-radius: 4px; background: var(--text); color: #fff;
  cursor: pointer; transition: opacity .15s;
}
.login-btn:hover { opacity: .85; }
.login-logout {
  font-family: inherit; font-size: 13px;
  padding: 10px 0; border: 1px solid var(--line-strong);
  border-radius: 4px; background: none; color: var(--text-dim);
  cursor: pointer; transition: color .15s, border-color .15s;
}
.login-logout:hover { color: var(--text); border-color: var(--text); }
.login-logout[hidden] { display: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .view { padding: 28px 18px 64px; }
  .topbar { gap: 14px; padding: 0 18px; height: 58px; }
  .view-title { font-size: 28px; }
  .cover-grid { grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 24px; }
  .photo-wall { columns: 2 140px; column-gap: 10px; }
  .photo-item { margin-bottom: 10px; }
  /* .crumb { margin-bottom: 18px; } */
  .view-sub { margin-bottom: 26px; }
}