/* =========================================================
   Z-Library 顶栏 + 展开菜单 复刻
   颜色、尺寸、图标均取自 z-library.sk 原始样式
   ========================================================= */

.zl-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #1E1F22;
  color: #FAFAFA;
  font-family: var(--font);
}
.zl-header .zl-container { width: 100%; padding: 0 14px; }

.zl-nav {
  position: relative;
  display: flex;
  align-items: center;
  height: 60px;
}

/* ---------- 左侧彩色入口 ---------- */
.mode-switcher {
  display: flex;
  align-items: baseline;
  margin: 0 7px;
}
.mode-switcher .header-main-nav-link {
  display: inline-block;
  padding: 2px 10px;
  margin: 0 3px;
  color: #2B2D31;
  font-size: 16px;
  line-height: 20px;
  text-decoration: none;
  white-space: nowrap;
  transition: filter .08s ease;
}
.mode-switcher .header-main-nav-link:hover {
  color: #2B2D31;
  filter: brightness(1.1);
}
.mode-switcher .pair-icons { font-size: 18px; margin: 0 3px; }
.visible-xs { display: none; }
.m-icon { width: 18px; height: 18px; display: block; }
.zl-nav .clear { flex: 1; }

/* ---------- 右侧图标区 ---------- */
.navigation-element { display: flex; align-items: center; }
.donate-element {
  padding: 0 22px;
  color: #FAAD14;
  font-size: 16px;
  white-space: nowrap;
}
.donate-element a { color: #FAAD14 !important; }
.donate-element a:hover { color: #EAA00F !important; }

.navigation-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 60px;
  color: #8C8C8C;
  font-size: 27px;
  cursor: pointer;
  transition: color .2s ease, background-color .2s ease;
}
.navigation-icon:hover { color: #FAFAFA; background: #2B2D31; }
.navigation-icon:focus-visible { outline: 2px solid #49AFD0; outline-offset: -4px; }

/* ---------- 搜索 ---------- */
.navigation-search-element { display: flex; align-items: center; overflow: hidden; }
.navigation-search-line {
  width: 0;
  opacity: 0;
  overflow: hidden;
  transition: width .4s ease, opacity .15s .1s;
}
.navigation-search-line.opened { width: 360px; opacity: 1; }
.navigation-search-line input {
  width: 100%;
  height: 34px;
  padding: 0 12px;
  background: #2B2D31;
  border: 1px solid #3A3D42;
  border-radius: 4px;
  color: #FAFAFA;
  font-size: 14px;
}
.navigation-search-line input::placeholder { color: #8C8C8C; }
.navigation-search-line input:focus { border-color: #49AFD0; outline: none; }
.navigation-search-element.opened .navigation-icon { min-width: 0; width: 0; opacity: 0; overflow: hidden; }

/* ---------- 主题切换胶囊 ---------- */
.navigation-theme-switcher .navigation-icon { min-width: 84px; }
.color-schema-switcher {
  position: relative;
  width: 76px;
  height: 28px;
  border: 1px solid #3A3D42;
  border-radius: 200px;
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
}
.color-schema-switcher > [class^="zlibicon-"] {
  position: absolute;
  top: 4px;
  color: #8C8C8C;
  line-height: 20px;
  transition: color .2s ease;
}
.color-schema-switcher > [class^="zlibicon-"]:hover { color: #FAFAFA; }
.color-schema-switcher__light { left: 4px; }
.color-schema-switcher__dark { left: 28px; }
.color-schema-switcher__glass { left: 52px; }
.color-schema-switcher__trigger {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #49AFD0;
  pointer-events: none;
  transition: transform .5s ease;
}
html[data-theme="dark"] .color-schema-switcher__trigger { transform: translateX(24px); }
html[data-theme="contrast"] .color-schema-switcher__trigger { transform: translateX(48px); }
html[data-theme="light"] .color-schema-switcher__trigger { transform: translateX(0); }
.color-schema-switcher .glass-svg {
  position: absolute;
  top: 5px;
  left: 53px;
  width: 17px;
  height: 17px;
  color: #8C8C8C;
}

/* ---------- 通知 ---------- */
.navigation-notifications { position: relative; }
.navigation-notifications .zlibicon-bell { font-size: 22px; }
.notifications-board {
  position: absolute;
  top: 56px;
  right: 0;
  z-index: 1003;
  display: none;
  width: 280px;
  padding: 10px;
  background: #2B2D31;
  border: 1px solid #3A3D42;
  border-radius: 6px;
  box-shadow: 0 16px 24px rgba(0, 0, 0, .3);
}
.notifications-board.open { display: block; }
.notifications-board__title {
  padding: 4px 8px 8px;
  color: #8C8C8C;
  font-size: 13px;
  border-bottom: 1px solid #3A3D42;
}
.notifications-board a {
  display: block;
  padding: 10px 8px;
  color: #FAFAFA;
  font-size: 13.5px;
  line-height: 1.5;
  border-radius: 4px;
}
.notifications-board a:hover { background: #3A3D42; }
.notifications-board a span { display: block; margin-top: 3px; color: #8C8C8C; font-size: 12px; }

/* ---------- 用户头像 ---------- */
.navigation-user-card-element { position: relative; }
.profile-header__avatar {
  display: block;
  width: 32px;
  height: 32px;
  overflow: hidden;
  border-radius: 50%;
  background: #3A3D42;
}
.profile-header__avatar-image { width: 100%; height: 100%; object-fit: cover; display: block; }
.user-card-mini {
  position: absolute;
  top: 56px;
  right: 0;
  z-index: 1003;
  display: none;
  min-width: 180px;
  padding: 6px;
  background: #2B2D31;
  border: 1px solid #3A3D42;
  border-radius: 6px;
  box-shadow: 0 16px 24px rgba(0, 0, 0, .3);
}
.user-card-mini.open { display: block; }
.user-card-mini a,
.user-card-mini .user-admin-slot a {
  display: block;
  padding: 8px 10px;
  border-radius: 4px;
  color: #FAFAFA;
  font-size: 14px;
}
.user-card-mini a:hover { background: #3A3D42; }
.user-card-mini .user-admin-slot:empty { display: none; }

/* ---------- 汉堡 ---------- */
.navigation-menu-element { margin-right: 6px; }
.navigation-menu-element .zlibicon-menu-n { font-size: 26px; }

/* ---------- 展开菜单 ---------- */
.navbar-menu {
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  z-index: 1001;
  display: none;
}
.navbar-menu.open { display: block; }
.navbar-menu-flex {
  position: relative;
  background: #2B2D31;
  box-shadow: 0 16px 24px rgba(0, 0, 0, .25);
  animation: menu-bg-in .25s ease;
}
.navbar-menu__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #2B2D31;
}
.navbar-menu__logo { display: none; }
.navbar-menu__close { display: none; }
.navbar-menu__wrap {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 8px;
  padding: 40px 30px 19px;
}
.navbar-menu .category { flex: 1; min-width: 0; }
.navbar-menu .category > input { display: none; }
.category-title {
  display: block;
  margin-bottom: 28px;
  color: #8C8C8C;
  font-size: 14px;
  font-weight: 400;
  text-transform: uppercase;
  cursor: default;
}
.category-title .zlibicon-slider-arr-right { display: none; }
.category-list { display: flex; flex-direction: column; }
.category-list a {
  display: flex;
  align-items: flex-start;
  margin-bottom: 21px;
  color: #FAFAFA;
  font-size: 16px;
  text-decoration: none;
}
.category-list a:last-child { margin-bottom: 0; }
.category-list a i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  min-width: 24px;
  height: 24px;
  margin: -2px 12px 0 0;
  border-radius: 4px;
  color: #49AFD0;
  font-size: 16px;
}
.category-list a i.orange-color { color: #FC8034; background: #66550B; }
.category-list a i.blue-color { color: #5591CD; background: #32526C; }
.category-list a i.gray-color { color: #9599AD; background: #414245; }
.category-list a span { transition: color .08s ease; }
.category-list a span span.description {
  display: block;
  margin-top: 4px;
  color: #8C8C8C;
  font-size: 14px;
}
.category-list a:hover span { color: #49AFD0; }
.category-list a:hover span span.description { color: #8C8C8C; }
.category-list .sep { width: 90%; height: 1px; margin-bottom: 29px; background: #3A3D42; }

.navbar-menu.open .category-title,
.navbar-menu.open .category-list a {
  opacity: 0;
  animation: menu-title-in .3s ease forwards;
}
.navbar-menu.open .category-list a:nth-child(1) { animation-delay: .04s; }
.navbar-menu.open .category-list a:nth-child(2) { animation-delay: .08s; }
.navbar-menu.open .category-list a:nth-child(3) { animation-delay: .12s; }
.navbar-menu.open .category-list a:nth-child(4) { animation-delay: .16s; }
.navbar-menu.open .category-list a:nth-child(5) { animation-delay: .20s; }

.navbar-menu-antiscam {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: linear-gradient(90deg, rgba(73, 175, 208, .12) 0%, transparent 100%);
  color: #FAFAFA;
  font-size: 14px;
}
.navbar-menu-antiscam .check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  margin-right: 4px;
  border-radius: 50%;
  background: #2DB87A;
  color: #D6EFEA;
  font-size: 12px;
}
.navbar-menu-antiscam .check-icon .zlibicon-check-bold { transform: scale(.6); }
.navbar-menu-antiscam .sep { width: 1px; height: 12px; background: #595959; }
.navbar-menu-antiscam__sub { display: flex; gap: 16px; }
.navbar-menu-antiscam__sub a { color: #49AFD0; }

.zl-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: none;
  background: rgba(0, 0, 0, .45);
}
.zl-menu-backdrop.open { display: block; }
@media (min-width: 1191px) { .zl-menu-backdrop { display: none !important; } }

@keyframes menu-bg-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes menu-title-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
@keyframes drawer-in {
  from { transform: translateX(-100%); }
  to { transform: none; }
}

/* ---------- 平板 / 手机 ---------- */
@media (max-width: 1190px) {
  .navbar-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 77%;
    max-width: 390px;
    height: 100%;
    overflow-y: auto;
    background: #2B2D31;
    box-shadow: 10px 0 100px rgba(0, 0, 0, .4);
    animation: drawer-in .3s ease;
  }
  .navbar-menu-flex { background: transparent; box-shadow: none; animation: none; }
  .navbar-menu__bg { display: none; }
  .navbar-menu__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 18px 18px 10px;
    color: #FAFAFA;
    font-size: 17px;
    font-weight: 700;
  }
  .navbar-menu__logo .logo-mark {
    width: 24px; height: 24px;
    display: grid; place-items: center;
    border-radius: 3px;
    background: #71B82C;
    color: #fff;
    font-size: 15px;
  }
  .navbar-menu__close {
    position: absolute;
    top: 14px;
    right: 12px;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: none;
    border: 1px solid #3A3D42;
    border-radius: 4px;
    color: #BFBFBF;
    font-size: 18px;
    cursor: pointer;
  }
  .navbar-menu__wrap { flex-direction: column; gap: 0; padding: 10px 0 20px; }
  .navbar-menu .category { flex: none; }
  .category-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0;
    padding: 12px 18px;
    background: #222627;
    cursor: pointer;
  }
  .category-title .zlibicon-slider-arr-right {
    display: inline-block;
    transition: transform .3s ease;
  }
  .category > input:checked + .category-title .zlibicon-slider-arr-right { transform: rotate(90deg); }
  .category-list {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }
  .category > input:checked ~ .category-list { max-height: 420px; }
  .category-list a { margin: 12px 18px; }
  .category-list a:first-child { margin-top: 14px; }
  .category-list .sep { width: auto; margin: 0 18px 14px; }
  .navbar-menu-antiscam {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    background: linear-gradient(163deg, rgba(73, 175, 208, .12) 0%, transparent 100%);
  }
  .navbar-menu-antiscam .sep { display: none; }
}

@media (max-width: 980px) {
  .main-nav { display: none; }
}

@media (max-width: 768px) {
  .zl-header .zl-container { padding: 0 8px; }
  .zl-nav { height: 52px; }
  .mode-switcher { margin: 0 2px; }
  .mode-switcher .header-main-nav-link { padding: 2px 7px; font-size: 18px; line-height: 20px; }
  .hidden-xs { display: none !important; }
  .visible-xs { display: inline !important; }
  .donate-element { padding: 0 8px; font-size: 14px; }
  .navigation-icon { min-width: 42px; height: 52px; font-size: 24px; }
  .navigation-theme-switcher .navigation-icon { min-width: 42px; }
  .color-schema-switcher { width: 28px; height: 28px; border-radius: 50%; }
  .color-schema-switcher__light { left: 5px; top: 4px; }
  .color-schema-switcher__dark,
  .color-schema-switcher .glass-svg { display: none; }
  .color-schema-switcher__trigger {
    width: 28px;
    height: 28px;
    top: -1px;
    left: -1px;
    background: transparent;
  }
  html[data-theme="dark"] .color-schema-switcher__trigger,
  html[data-theme="contrast"] .color-schema-switcher__trigger,
  html[data-theme="light"] .color-schema-switcher__trigger { transform: none; }
  .navigation-search-line.opened {
    position: fixed;
    top: 6px;
    left: 10px;
    right: 10px;
    z-index: 1004;
    width: auto;
    height: 40px;
    padding: 0;
    background: #1E1F22;
  }
  .navigation-search-line.opened input { height: 40px; font-size: 15px; }
  .notifications-board { right: -80px; width: 270px; }
  .user-card-mini { right: -40px; }
  .navbar-menu { top: 0; }
}

@media (max-width: 520px) {
  .donate-element { display: none; }
  .navigation-icon { min-width: 38px; }
  .navigation-theme-switcher .navigation-icon { min-width: 38px; }
}

@media (prefers-reduced-motion: reduce) {
  .navbar-menu, .navbar-menu-flex, .color-schema-switcher__trigger { animation: none !important; transition: none !important; }
}