/* ===================================================================
   微博玻璃 WeiboGlass 主题样式
   玻璃拟态 Glassmorphism · 响应式 · 深色模式
   =================================================================== */

:root {
  --wb-glass: rgba(255, 255, 255, .58);
  --wb-glass-strong: rgba(255, 255, 255, .72);
  --wb-glass-border: rgba(255, 255, 255, .55);
  --wb-glass-soft: rgba(255, 255, 255, .35);
  --wb-text: #232946;
  --wb-text-2: #5b6180;
  --wb-text-3: #8b90a8;
  --wb-accent: #5b7cfa;
  --wb-accent-2: #9c5bfa;
  --wb-accent-grad: linear-gradient(135deg, #5b7cfa, #9c5bfa);
  --wb-danger: #e5484d;
  --wb-shadow: 0 8px 32px rgba(31, 38, 135, .14);
  --wb-shadow-sm: 0 4px 16px rgba(31, 38, 135, .10);
  --wb-radius: 18px;
  --wb-radius-sm: 12px;
  --wb-blur: blur(18px) saturate(165%);
}

html[data-wb-theme="dark"] {
  --wb-glass: rgba(30, 32, 48, .55);
  --wb-glass-strong: rgba(30, 32, 48, .72);
  --wb-glass-border: rgba(255, 255, 255, .10);
  --wb-glass-soft: rgba(255, 255, 255, .05);
  --wb-text: #e6e8f2;
  --wb-text-2: #a9aec6;
  --wb-text-3: #7d82a0;
  --wb-shadow: 0 8px 32px rgba(0, 0, 0, .35);
  --wb-shadow-sm: 0 4px 16px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body.wb-body {
  margin: 0;
  min-height: 100vh;
  color: var(--wb-text);
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #c7d2fe 0%, #e0c3fc 45%, #fbc2eb 100%);
  background-attachment: fixed;
  word-break: break-word;
}

/* ---------- 动态背景光斑 ---------- */
.wb-bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.wb-blob {
  position: absolute; display: block; border-radius: 50%;
  filter: blur(70px); opacity: .55; will-change: transform;
  animation: wbFloat 22s ease-in-out infinite alternate;
}
.wb-blob.b1 { width: 46vw; height: 46vw; left: -12vw; top: -14vw; background: #8ab4ff; }
.wb-blob.b2 { width: 40vw; height: 40vw; right: -10vw; top: 18vh; background: #d5a8ff; animation-delay: -7s; }
.wb-blob.b3 { width: 38vw; height: 38vw; left: 24vw; bottom: -18vw; background: #ffb3d1; animation-delay: -13s; }

@keyframes wbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(4vw, -3vh) scale(1.08); }
  100% { transform: translate(-3vw, 3vh) scale(.96); }
}

/* ---------- 玻璃卡片基类 ---------- */
.wb-card {
  background: var(--wb-glass);
  -webkit-backdrop-filter: var(--wb-blur);
  backdrop-filter: var(--wb-blur);
  border: 1px solid var(--wb-glass-border);
  border-radius: var(--wb-radius);
  box-shadow: var(--wb-shadow);
  padding: 16px 18px;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.wb-card:hover { background: var(--wb-glass-strong); box-shadow: 0 12px 40px rgba(31, 38, 135, .18); }

/* ---------- 顶栏 ---------- */
.wb-topbar {
  position: sticky; top: 0; z-index: 100;
  background: var(--wb-glass);
  -webkit-backdrop-filter: var(--wb-blur);
  backdrop-filter: var(--wb-blur);
  border-bottom: 1px solid var(--wb-glass-border);
  box-shadow: 0 2px 18px rgba(31, 38, 135, .08);
}
.wb-topbar-in {
  max-width: 1100px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; gap: 14px;
}
.wb-logo {
  font-size: 20px; font-weight: 800; letter-spacing: .5px;
  background: var(--wb-accent-grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent; text-decoration: none; white-space: nowrap;
}
.wb-nav { display: flex; gap: 4px; flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.wb-nav::-webkit-scrollbar { display: none; }
.wb-nav a {
  padding: 6px 12px; border-radius: 999px; text-decoration: none;
  color: var(--wb-text-2); font-weight: 500; white-space: nowrap;
  transition: all .2s;
}
.wb-nav a:hover { color: var(--wb-accent); background: var(--wb-glass-soft); }
.wb-nav a.on { color: #fff; background: var(--wb-accent-grad); box-shadow: 0 3px 10px rgba(91, 124, 250, .4); }
.wb-top-user { display: flex; align-items: center; gap: 10px; }
.wb-top-name { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: 13px; white-space: nowrap; }
.wb-top-avatar { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; border: 1px solid var(--wb-glass-border); }
.wb-logout, .wb-login-link {
  font-size: 13px; color: var(--wb-text-2); text-decoration: none;
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--wb-glass-border);
  background: var(--wb-glass-soft); white-space: nowrap; transition: all .2s;
}
.wb-logout:hover, .wb-login-link:hover { color: var(--wb-danger); border-color: var(--wb-danger); }
.wb-searchbar input {
  width: 150px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--wb-glass-border);
  background: var(--wb-glass-soft); color: var(--wb-text); outline: none; font-size: 13px;
  transition: width .3s ease, box-shadow .3s;
}
.wb-searchbar input:focus { width: 190px; box-shadow: 0 0 0 3px rgba(91, 124, 250, .18); }

/* ---------- 布局 ---------- */
.wb-wrap {
  max-width: 1100px; margin: 22px auto 40px; padding: 0 16px;
  display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 20px;
  align-items: start;
}
.wb-main { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.wb-side { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 74px; }
.wb-side-title { margin: 0 0 10px; font-size: 15px; font-weight: 700; }
.wb-side-empty { color: var(--wb-text-3); font-size: 13px; }

.wb-context {
  padding: 10px 16px; border-radius: var(--wb-radius-sm);
  background: var(--wb-glass-soft); border: 1px dashed var(--wb-glass-border);
  color: var(--wb-text-2); font-size: 14px;
}

/* ---------- 发布框 / 登录框 ---------- */
.wb-composer { display: flex; gap: 12px; }
.wb-avatar {
  width: 42px; height: 42px; border-radius: 50%; object-fit: cover; flex: none;
  border: 2px solid rgba(255, 255, 255, .7); box-shadow: 0 2px 8px rgba(31, 38, 135, .15);
}
.wb-avatar-lg { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; border: 2px solid rgba(255, 255, 255, .7); box-shadow: 0 4px 14px rgba(31, 38, 135, .2); }
.wb-composer-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 10px; }

.wb-input {
  width: 100%; padding: 10px 12px; border-radius: var(--wb-radius-sm);
  border: 1px solid var(--wb-glass-border); background: var(--wb-glass-soft);
  color: var(--wb-text); outline: none; font: inherit; resize: none;
  transition: box-shadow .25s, background .25s;
}
.wb-input:focus { background: var(--wb-glass-strong); box-shadow: 0 0 0 3px rgba(91, 124, 250, .18); }

.wb-previews { display: none; flex-wrap: wrap; gap: 8px; }
.wb-previews.has { display: flex; }
.wb-previews .pv { position: relative; width: 74px; height: 74px; border-radius: 10px; overflow: hidden; border: 1px solid var(--wb-glass-border); }
.wb-previews .pv img { width: 100%; height: 100%; object-fit: cover; }
.wb-previews .pv a {
  position: absolute; top: 2px; right: 2px; width: 20px; height: 20px; line-height: 18px;
  text-align: center; border-radius: 50%; background: rgba(0, 0, 0, .55); color: #fff;
  font-size: 12px; text-decoration: none;
}

.wb-toolrow { display: flex; align-items: center; gap: 12px; }
.wb-tool {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%; cursor: pointer;
  color: var(--wb-accent); background: var(--wb-glass-soft);
  border: 1px solid var(--wb-glass-border); transition: all .2s;
}
.wb-tool:hover { background: var(--wb-accent); color: #fff; transform: translateY(-1px); }
.wb-tool input[type=file] { display: none; }
.wb-count { margin-left: auto; font-size: 12px; color: var(--wb-text-3); }

.wb-btn {
  display: inline-flex; align-items: center; gap: 6px; justify-content: center;
  padding: 8px 22px; border: 0; border-radius: 999px; cursor: pointer;
  font: inherit; font-weight: 600; font-size: 14px; color: #fff;
  background: var(--wb-accent-grad); box-shadow: 0 4px 14px rgba(91, 124, 250, .4);
  transition: transform .15s, box-shadow .2s, opacity .2s; text-decoration: none;
}
.wb-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(91, 124, 250, .5); }
.wb-btn:active { transform: translateY(0); }
.wb-btn[disabled] { opacity: .6; cursor: not-allowed; }
.wb-btn-block { width: 100%; }

.wb-login { max-width: 480px; }
.wb-login-head { display: flex; flex-direction: column; gap: 2px; margin-bottom: 12px; }
.wb-login-head b { font-size: 16px; }
.wb-login-head span { font-size: 13px; color: var(--wb-text-3); }
.wb-login-row { display: flex; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.wb-login-row .wb-input { flex: 1; min-width: 140px; }
.wb-login-err { color: var(--wb-danger); font-size: 13px; min-height: 18px; }

/* ---------- 微博卡片 ---------- */
.wb-item { display: flex; gap: 12px; }
.wb-item-main { flex: 1; min-width: 0; }
.wb-item-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.wb-item-name { font-weight: 700; color: var(--wb-accent); }
.wb-item-time { font-size: 12px; color: var(--wb-text-3); }
.wb-badge {
  font-size: 11px; padding: 1px 8px; border-radius: 999px; color: #fff;
  background: linear-gradient(135deg, #ff9a6b, #ff6b9a);
}
.wb-item-content { margin: 6px 0 4px; overflow-wrap: anywhere; }
.wb-item-content img { max-width: 100%; border-radius: var(--wb-radius-sm); box-shadow: var(--wb-shadow-sm); }
.wb-item-content p.wb-img { margin: 6px 0 0; }
.wb-topic, .wb-link { color: var(--wb-accent); text-decoration: none; font-weight: 600; }
.wb-topic:hover, .wb-link:hover { text-decoration: underline; }
.wb-item-tags { margin: 4px 0; display: flex; gap: 6px; flex-wrap: wrap; }
.wb-tag {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px;
  color: var(--wb-accent); background: var(--wb-glass-soft);
  border: 1px solid var(--wb-glass-border); text-decoration: none; transition: all .2s;
}
.wb-tag:hover { background: var(--wb-accent); color: #fff; }
.wb-item-foot {
  display: flex; align-items: center; gap: 14px; margin-top: 8px;
  font-size: 12px; color: var(--wb-text-3);
}
.wb-item-foot a { color: var(--wb-text-3); text-decoration: none; transition: color .2s; }
.wb-item-foot a:hover { color: var(--wb-accent); }
.wb-detail { margin-left: auto; }
.wb-detail::after { content: " ›"; }

.wb-empty { text-align: center; color: var(--wb-text-3); }

/* 加载更多 */
.wb-more {
  width: 100%; text-align: center; cursor: pointer; font: inherit; font-weight: 600;
  color: var(--wb-accent); border: 1px dashed var(--wb-glass-border) !important;
}
.wb-more:hover { background: var(--wb-glass-strong); }
.wb-more[disabled] { opacity: .6; }

/* 分页 */
.wb-pagebar { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.wb-page {
  display: inline-block; min-width: 32px; padding: 4px 8px; text-align: center;
  border-radius: 10px; font-size: 13px; text-decoration: none; color: var(--wb-text-2);
  background: var(--wb-glass-soft); border: 1px solid var(--wb-glass-border);
}
a:hover .wb-page { color: var(--wb-accent); background: var(--wb-glass-strong); }
.now-page { color: #fff; background: var(--wb-accent-grad); border-color: transparent; }

/* ---------- 侧栏 ---------- */
.wb-profile-head { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; }
.wb-profile-name { font-size: 17px; font-weight: 800; }
.wb-profile-sub { font-size: 13px; color: var(--wb-text-3); }
.wb-profile-stats {
  display: flex; justify-content: space-around; margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--wb-glass-border); text-align: center;
}
.wb-stat { display: flex; flex-direction: column; gap: 2px; max-width: 33%; }
.wb-stat b { font-size: 16px; color: var(--wb-accent); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 90px; }
.wb-stat span { font-size: 12px; color: var(--wb-text-3); }
.wb-tagcloud { display: flex; flex-wrap: wrap; gap: 8px; }
.wb-searchside form { display: flex; }
.wb-about p { margin: 0; font-size: 13px; color: var(--wb-text-2); }

/* ---------- 评论 ---------- */
.wb-comment { display: flex; gap: 10px; padding: 12px 14px; }
.wb-comment .wb-avatar { width: 34px; height: 34px; }
.wb-comment-main { flex: 1; min-width: 0; }
.wb-comment-content { font-size: 14px; }
.wb-cmt-user { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; font-weight: 600; font-size: 14px; }
.wb-cmt-user .wb-avatar { width: 30px; height: 30px; }
.wb-commentpost textarea { min-height: 80px; }

/* ---------- 底部 ---------- */
.wb-foot {
  text-align: center; padding: 18px 16px 30px; color: var(--wb-text-2); font-size: 13px;
}
.wb-foot p { margin: 4px 0; }
.wb-foot a { color: var(--wb-accent); text-decoration: none; }

/* 404 */
.wb-404 b { display: block; font-size: 64px; background: var(--wb-accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* 发布中提示 */
.wb-toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  padding: 10px 24px; border-radius: 999px; color: #fff; font-size: 14px; z-index: 999;
  background: rgba(35, 41, 70, .85); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  opacity: 0; pointer-events: none; transition: all .3s ease;
}
.wb-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.wb-toast.err { background: rgba(229, 72, 77, .92); }
.wb-toast.ok { background: rgba(56, 158, 105, .92); }

/* 深色模式（跟随系统） */
@media (prefers-color-scheme: dark) {
  body.wb-body:not([data-wb-force-light]) {
    background: linear-gradient(135deg, #1b1e3a 0%, #2a1e46 50%, #3a1e33 100%);
    color: var(--wb-text);
  }
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .wb-wrap { grid-template-columns: 1fr; margin-top: 16px; }
  .wb-side { position: static; order: 2; }
  .wb-main { order: 1; }
  .wb-nav { display: none; }
}

@media (max-width: 640px) {
  .wb-topbar-in { padding: 8px 12px; gap: 8px; }
  .wb-searchbar { display: none; }
  .wb-logo { font-size: 18px; }
  .wb-card { padding: 14px; border-radius: 14px; }
  .wb-avatar { width: 36px; height: 36px; }
  .wb-item-foot { gap: 10px; flex-wrap: wrap; }
  .wb-detail { margin-left: 0; }
  .wb-blob { filter: blur(50px); }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .wb-blob { animation: none; }
  * { transition: none !important; }
}