/**
 * 猫头鹰信息 · 设计基线「夜间情报台」
 * ---------------------------------------------------------
 * 来源：登录页定稿视觉（单画面构图、品牌外置、青蓝强调、径向光晕 + 淡网格）
 * 用途：全站 token 与表面语言的唯一真相来源；业务样式写在 style.css，应优先复用此处变量。
 *
 * 原则：
 * 1. 单构图优先，避免双卡片堆叠与 chip 墙
 * 2. 衬线只用于品牌/页标题；控件与正文用无衬线
 * 3. 表面轻：半透明 elevated + 细边，少厚阴影
 * 4. 强调色偏青蓝，忌高饱和纯亮蓝 / 紫渐变 / 奶油衬线套装
 * 5. 动效克制：进入上浮、焦点环、按钮按下缩放（2–3 处）；soft 刷新与会员条禁止重播入场动画
 */

:root {
  /* —— 色板：浅色（冷纸白） —— */
  --bg: #e8eef4;
  --bg-elevated: #f4f7fa;
  --bg-soft: #dce5ef;
  --bg-sidebar: #e2eaf2;
  --text: #0d1824;
  --text-muted: #5a6d80;
  --border: #c3d0de;
  --accent: #1f7fb8;
  --accent-soft: #dceff8;
  --accent-glow: color-mix(in srgb, var(--accent) 88%, #0a8 12%);
  --danger: #d1242f;
  --success: #1a7f37;
  --warn: #b45309;
  --warn-soft: #fff7ed;
  --stock-up: #cf222e;
  --stock-down: #1a7f37;
  --channel-name: #3f6f57;
  --shadow: 0 8px 24px rgba(13, 24, 36, 0.06);
  --shadow-soft: 0 1px 2px rgba(13, 24, 36, 0.04);

  /* —— 布局 —— */
  --radius: 12px;
  --radius-sm: 10px;
  --radius-lg: 16px;
  --nav-w: 240px;
  --tab-h: 60px;
  --home-max: 840px;
  --read-max: 800px;
  --wide-max: 960px;

  /* —— 字体（系统栈，不依赖 Google Fonts） —— */
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Songti SC", "STSong", "SimSun", "PingFang SC", "Microsoft YaHei", serif;

  /* —— 情报台氛围 —— */
  --glow-1: color-mix(in srgb, var(--accent-glow) 16%, transparent);
  --glow-2: color-mix(in srgb, var(--accent) 8%, transparent);
  --glow-3: color-mix(in srgb, #0a8 6%, transparent);
  --grid-line: color-mix(in srgb, var(--border) 35%, transparent);
  --surface: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  --surface-strong: color-mix(in srgb, var(--bg-elevated) 96%, transparent);
  --hairline: color-mix(in srgb, var(--border) 85%, transparent);

  --vv-offset: 0px;
}

[data-theme="dark"] {
  --bg: #0a1218;
  --bg-elevated: #121c28;
  --bg-soft: #1a2836;
  --bg-sidebar: #0c151e;
  --text: #e6eef6;
  --text-muted: #8b9aab;
  --border: #243544;
  --accent: #3aa0d8;
  --accent-soft: #132838;
  --accent-glow: color-mix(in srgb, var(--accent) 88%, #0a8 12%);
  --danger: #ff7b72;
  --success: #3fb950;
  --warn: #f0b429;
  --warn-soft: #2a2110;
  --stock-up: #ff7b72;
  --stock-down: #3fb950;
  --channel-name: #ffffff;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.2);
  --glow-1: color-mix(in srgb, var(--accent-glow) 18%, transparent);
  --glow-2: color-mix(in srgb, var(--accent) 10%, transparent);
  --glow-3: color-mix(in srgb, #0a8 7%, transparent);
  --grid-line: color-mix(in srgb, var(--border) 35%, transparent);
  --surface: color-mix(in srgb, var(--bg-elevated) 70%, var(--bg));
  --surface-strong: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
  --hairline: color-mix(in srgb, var(--border) 78%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a1218;
    --bg-elevated: #121c28;
    --bg-soft: #1a2836;
    --bg-sidebar: #0c151e;
    --text: #e6eef6;
    --text-muted: #8b9aab;
    --border: #243544;
    --accent: #3aa0d8;
    --accent-soft: #132838;
    --accent-glow: color-mix(in srgb, var(--accent) 88%, #0a8 12%);
    --danger: #ff7b72;
    --success: #3fb950;
    --warn: #f0b429;
    --warn-soft: #2a2110;
    --stock-up: #ff7b72;
    --stock-down: #3fb950;
    --channel-name: #ffffff;
    --shadow: 0 10px 28px rgba(0, 0, 0, 0.38);
    --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.2);
    --glow-1: color-mix(in srgb, var(--accent-glow) 18%, transparent);
    --glow-2: color-mix(in srgb, var(--accent) 10%, transparent);
    --glow-3: color-mix(in srgb, #0a8 7%, transparent);
    --grid-line: color-mix(in srgb, var(--border) 35%, transparent);
    --surface: color-mix(in srgb, var(--bg-elevated) 70%, var(--bg));
    --surface-strong: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
    --hairline: color-mix(in srgb, var(--border) 78%, transparent);
  }
}

[data-theme="light"] {
  --bg: #e8eef4;
  --bg-elevated: #f4f7fa;
  --bg-soft: #dce5ef;
  --bg-sidebar: #e2eaf2;
  --text: #0d1824;
  --text-muted: #5a6d80;
  --border: #c3d0de;
  --accent: #1f7fb8;
  --accent-soft: #dceff8;
  --accent-glow: color-mix(in srgb, var(--accent) 88%, #0a8 12%);
  --danger: #d1242f;
  --success: #1a7f37;
  --warn: #b45309;
  --warn-soft: #fff7ed;
  --stock-up: #cf222e;
  --stock-down: #1a7f37;
  --channel-name: #3f6f57;
  --shadow: 0 8px 24px rgba(13, 24, 36, 0.06);
  --shadow-soft: 0 1px 2px rgba(13, 24, 36, 0.04);
  --glow-1: color-mix(in srgb, var(--accent-glow) 14%, transparent);
  --glow-2: color-mix(in srgb, var(--accent) 7%, transparent);
  --glow-3: color-mix(in srgb, #0a8 5%, transparent);
  --grid-line: color-mix(in srgb, var(--border) 40%, transparent);
  --surface: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  --surface-strong: color-mix(in srgb, var(--bg-elevated) 98%, transparent);
  --hairline: color-mix(in srgb, var(--border) 88%, transparent);
}

/* —— 全站氛围底：径向光晕 + 极淡网格 —— */
body {
  background:
    radial-gradient(1100px 520px at 8% -12%, var(--glow-1), transparent 55%),
    radial-gradient(900px 480px at 100% 0%, var(--glow-2), transparent 50%),
    radial-gradient(640px 420px at 12% 100%, var(--glow-3), transparent 55%),
    var(--bg);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 28%, #000 15%, transparent 78%);
}
[data-theme="dark"] body {
  background:
    radial-gradient(1100px 520px at 8% -12%, var(--glow-1), transparent 55%),
    radial-gradient(900px 480px at 100% 0%, var(--glow-2), transparent 50%),
    radial-gradient(640px 420px at 12% 100%, var(--glow-3), transparent 55%),
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 88%, #061018) 0%, var(--bg) 48%, var(--bg) 100%);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body {
    background:
      radial-gradient(1100px 520px at 8% -12%, var(--glow-1), transparent 55%),
      radial-gradient(900px 480px at 100% 0%, var(--glow-2), transparent 50%),
      radial-gradient(640px 420px at 12% 100%, var(--glow-3), transparent 55%),
      linear-gradient(180deg, color-mix(in srgb, var(--bg) 88%, #061018) 0%, var(--bg) 48%, var(--bg) 100%);
  }
}
[data-theme="light"] body {
  background:
    radial-gradient(1100px 520px at 8% -12%, var(--glow-1), transparent 55%),
    radial-gradient(900px 480px at 100% 0%, var(--glow-2), transparent 50%),
    radial-gradient(640px 420px at 12% 100%, var(--glow-3), transparent 55%),
    var(--bg);
}

/* —— 标题 / 品牌 —— */
.page-head h1,
.home-brand h1,
.brand-title {
  font-family: var(--font-display);
  letter-spacing: 0.04em;
}
.home-brand h1 {
  font-size: clamp(1.45rem, 4.2vw, 1.75rem);
  letter-spacing: 0.05em;
}
.home-brand .brand-mark {
  border-radius: 14px;
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--border) 65%, transparent),
    0 10px 22px color-mix(in srgb, #1f7fb8 12%, transparent);
}

/* 品牌字标 C：红涨水印衬线 */
.brand-wordmark {
  position: relative;
  display: inline-block;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.16em;
  line-height: 1.15;
  color: var(--text);
  isolation: isolate;
}
.brand-wordmark-rise {
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: -28%;
  width: 112%;
  height: 88%;
  opacity: 0.85;
  pointer-events: none;
  z-index: 0;
  overflow: visible;
}
.brand-wordmark-line {
  fill: none;
  stroke: var(--stock-up);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.brand-wordmark-area {
  fill: var(--stock-up);
  opacity: 0.28;
}
.brand-wordmark-label {
  position: relative;
  z-index: 1;
}
.home-brand .brand-wordmark,
.home-brand h1.brand-wordmark {
  font-size: clamp(1.55rem, 4.6vw, 1.95rem);
  letter-spacing: 0.15em;
  padding-bottom: 6px;
}
.home-brand .brand-wordmark-rise {
  bottom: -22%;
  height: 92%;
  opacity: 0.9;
}
.brand-wordmark--sm {
  font-size: 1.18rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  padding-bottom: 4px;
}
.brand-wordmark--sm .brand-wordmark-rise {
  bottom: -30%;
  height: 95%;
  opacity: 0.78;
}
.brand-wordmark--sm .brand-wordmark-line {
  stroke-width: 4.5;
}
.brand-wordmark--sm .brand-wordmark-area {
  opacity: 0.24;
}
.sidebar .brand .brand-wordmark--sm {
  display: block;
}
[data-theme="light"] .brand-wordmark-rise {
  opacity: 0.92;
}
[data-theme="light"] .brand-wordmark-area {
  opacity: 0.32;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .brand-wordmark-rise {
    opacity: 0.92;
  }
  :root:not([data-theme="dark"]) .brand-wordmark-area {
    opacity: 0.32;
  }
}
.section-label {
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--text-muted) 90%, var(--text));
}

/* —— 表面：实色面板（无玻璃） —— */
.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

/* —— 列表行（收件箱语言，默认非卡片） —— */
.group-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.group-item {
  display: grid;
  gap: 4px;
  text-align: left;
  width: 100%;
  border: 0;
  border-radius: 0;
  border-bottom: 1px solid var(--hairline);
  border-left: 2px solid transparent;
  background: transparent;
  padding: 14px 4px 14px 10px;
  cursor: pointer;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  transition: background .15s ease, border-color .15s ease;
}
.group-item:last-child {
  border-bottom: 0;
}
.group-item:hover {
  transform: none;
  box-shadow: none;
  background: color-mix(in srgb, var(--accent-glow) 7%, transparent);
  border-color: transparent;
  border-left-color: color-mix(in srgb, var(--accent-glow) 55%, transparent);
}
.group-item.unread {
  border-left-color: var(--accent-glow);
  background: color-mix(in srgb, var(--accent-glow) 9%, transparent);
}
.group-item strong {
  font-size: 1.02rem;
  letter-spacing: 0.01em;
}
.group-item .meta {
  color: var(--text-muted);
  font-size: 0.78rem;
}
.group-item .preview {
  color: color-mix(in srgb, var(--text-muted) 88%, var(--text));
  font-size: 0.88rem;
}

/* —— 按钮 / 输入 —— */
.btn {
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  transition: transform .15s ease, opacity .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover {
  box-shadow: 0 8px 20px color-mix(in srgb, var(--accent-glow) 26%, transparent);
}
.btn:active {
  transform: scale(0.985);
  box-shadow: none;
}
.btn.ghost {
  background: transparent;
  box-shadow: none;
}
.field input,
.field textarea,
.field select,
.msg-toolbar input {
  border-color: var(--hairline);
  background: var(--surface);
  border-radius: var(--radius-sm);
}
.field input:focus,
.field textarea:focus,
.field select:focus,
.msg-toolbar input:focus {
  border-color: color-mix(in srgb, var(--accent-glow) 65%, var(--border));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-glow) 18%, transparent);
  outline: none;
}

/* —— 底栏 / 侧栏 —— */
.tab-bar {
  background: var(--bg-elevated);
  border-top-color: var(--hairline);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.tab-btn.active {
  color: var(--accent-glow);
}
.sidebar {
  background: var(--bg-sidebar);
  border-right-color: var(--hairline);
}
.nav-item.active,
.nav-btn.active {
  background: color-mix(in srgb, var(--accent-glow) 12%, transparent);
  color: var(--accent-glow);
  border-left-color: var(--accent-glow);
}

/* —— 消息卡：阅读面，轻边而非厚卡 —— */
.msg-card {
  background: var(--bg-elevated);
  border: 1px solid var(--hairline);
  border-left: 2px solid color-mix(in srgb, var(--accent-glow) 50%, var(--border));
  box-shadow: var(--shadow-soft);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

/* —— 会员条 / 状态条 —— */
.home-member-bar {
  border-color: var(--hairline);
  background: var(--bg-elevated);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

/* —— 页头 / 频道列表：无入场动画（硬切，避免返回列表与管理页闪烁） —— */

/* —— 设置 / 管理：轻分段 —— */
.settings-grid,
.admin-grid {
  gap: 10px;
}
.settings-grid > .panel,
.admin-grid > .panel,
.page-wide > .panel {
  box-shadow: none;
}
.settings-grid h3,
.admin-grid h3,
.panel-pad > h3 {
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--text) 92%, var(--text-muted));
}
.admin-tabs {
  gap: 0;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 0;
  margin-bottom: 14px;
}
.admin-tabs .btn,
.admin-tabs button {
  border: 0 !important;
  background: transparent !important;
  color: var(--text-muted) !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  padding: 10px 12px 12px !important;
  position: relative;
  font-weight: 500 !important;
}
.admin-tabs .btn:not(.ghost),
.admin-tabs button.active,
.admin-tabs .btn.sm:not(.ghost) {
  color: var(--text) !important;
  font-weight: 600 !important;
}
.admin-tabs .btn:not(.ghost)::after,
.admin-tabs button.active::after {
  content: "";
  position: absolute;
  left: 16%;
  right: 16%;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-glow);
}

/* —— 客服气泡 —— */
.bubble {
  background: var(--surface);
  border: 1px solid var(--hairline);
}
.bubble.me {
  background: color-mix(in srgb, var(--accent-glow) 14%, var(--bg-elevated));
  border-color: color-mix(in srgb, var(--accent-glow) 28%, var(--border));
}
.chat-input {
  border-top-color: var(--hairline);
  background: color-mix(in srgb, var(--bg-elevated) 50%, transparent);
}

/* —— 空态 / Toast —— */
.empty {
  border-color: var(--hairline);
  background: color-mix(in srgb, var(--bg-soft) 35%, transparent);
}
.toast {
  border-color: var(--hairline);
  background: var(--bg-elevated);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

/* —— 齿轮 / chip —— */
.shell-gear:hover,
.shell-gear.is-active {
  color: var(--accent-glow);
  border-color: color-mix(in srgb, var(--accent-glow) 50%, var(--border));
}
.sidebar-chip.is-on {
  background: color-mix(in srgb, var(--accent-glow) 14%, transparent);
  color: var(--accent-glow);
  border-color: color-mix(in srgb, var(--accent-glow) 45%, var(--border));
}

/* —— PC：实色表面 + 内容区约 70% —— */
@media (min-width: 900px) {
  .sidebar {
    background:
      linear-gradient(180deg, color-mix(in srgb, var(--accent-glow) 6%, transparent), transparent 28%),
      var(--bg-sidebar);
  }
  .brand {
    letter-spacing: 0.04em;
  }
  .content {
    background: transparent;
  }
  .group-list {
    border: 1px solid var(--hairline);
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-elevated);
    box-shadow: var(--shadow-soft);
  }
  .group-item {
    padding: 15px 14px;
    background: var(--bg-elevated);
  }
  .group-item:hover {
    border-radius: 0;
    background: color-mix(in srgb, var(--accent-glow) 8%, var(--bg-elevated));
  }
  .group-item:not(.locked) strong {
    color: var(--channel-name);
    font-weight: 650;
  }
  .group-item.locked {
    opacity: 0.78;
  }
  .group-item.locked strong {
    color: color-mix(in srgb, var(--text-muted) 40%, var(--text));
    font-weight: 600;
  }
  .home-member-bar {
    border-radius: 14px;
    padding: 6px;
  }
  .auth-form-panel {
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: 18px;
    box-shadow: var(--shadow);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .page-read .page-head {
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: 16px;
    padding: 14px 16px;
    box-shadow: var(--shadow-soft);
  }
  .page-read .page-head h1 {
    color: var(--channel-name) !important;
    font-weight: 650;
  }
  [data-theme="dark"] .group-item:not(.locked) strong,
  [data-theme="dark"] .page-read .page-head h1 {
    color: #fff !important;
    font-weight: 700;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .group-item:not(.locked) strong,
    :root:not([data-theme="light"]) .page-read .page-head h1 {
      color: #fff !important;
      font-weight: 700;
    }
  }
  .page-head h1 {
    letter-spacing: 0.05em;
  }
  .msg-toolbar {
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: 14px;
    padding: 8px;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .msg-card {
    border-radius: 16px;
    background: var(--bg-elevated) !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }
  .page-home {
    width: min(100%, max(18rem, 70%));
    max-width: min(var(--home-max, 840px), 100%);
    margin-left: auto;
    margin-right: auto;
  }
  .page-read {
    width: min(100%, var(--read-max, 800px));
    max-width: min(var(--read-max, 800px), 100%);
    margin-left: auto;
    margin-right: auto;
  }
  .settings-grid,
  .admin-grid {
    gap: 14px;
  }
}

/* —— 手机：实色表面（无玻璃） —— */
@media (max-width: 899px) {
  .content {
    padding-top: 14px;
  }
  .shell {
    background: transparent;
  }
  .tab-bar {
    background: var(--bg-elevated) !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    border-color: var(--hairline) !important;
  }

  .auth-card.auth-form-panel,
  .auth-form-panel {
    padding: 18px 18px 16px !important;
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: 18px;
    box-shadow: var(--shadow);
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .home-member-bar {
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: 14px;
    padding: 6px;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .group-list {
    border: 1px solid var(--hairline);
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-elevated);
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    box-shadow: var(--shadow-soft);
  }
  .group-item {
    background: var(--bg-elevated);
    border-bottom-color: var(--hairline);
    padding-left: 14px;
    padding-right: 14px;
  }
  .group-item:hover {
    background: color-mix(in srgb, var(--accent-glow) 8%, var(--bg-elevated));
  }
  .group-item.locked {
    opacity: 0.78;
  }
  .group-item.locked strong {
    color: color-mix(in srgb, var(--text-muted) 40%, var(--text));
    font-weight: 600;
  }
  .group-item:not(.locked) strong {
    color: var(--channel-name);
    font-weight: 650;
  }

  .page-head {
    margin-bottom: 14px;
  }
  /* 消息页频道名：薄吸顶条（去卡片壳） */
  .page-read .page-head {
    background: transparent;
    border: 0;
    border-radius: 0;
    padding: 4px 2px;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    box-shadow: none;
  }
  .page-head h1 {
    font-size: 1.35rem;
    letter-spacing: 0.05em;
  }
  .page-read .page-head h1 {
    color: var(--channel-name) !important;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.03em;
  }
  [data-theme="dark"] .group-item:not(.locked) strong,
  [data-theme="dark"] .page-read .page-head h1 {
    color: #fff !important;
    font-weight: 700;
  }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .group-item:not(.locked) strong,
    :root:not([data-theme="light"]) .page-read .page-head h1 {
      color: #fff !important;
      font-weight: 700;
    }
  }
  .page-head p {
    font-size: 0.84rem;
    letter-spacing: 0.02em;
  }

  .msg-toolbar {
    background: var(--bg-elevated);
    border: 1px solid var(--hairline);
    border-radius: 14px;
    padding: 8px;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .msg-card {
    border-radius: 16px;
    padding: 14px 14px;
    background: var(--bg-elevated) !important;
    border: 1px solid var(--hairline) !important;
    box-shadow: var(--shadow-soft);
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }
  .panel {
    border-radius: var(--radius-sm);
  }

  .auth-brand-block .brand-title,
  .auth-brand-block .brand-wordmark {
    padding-right: 56px;
  }
  .auth-brand-block small {
    white-space: nowrap;
    font-size: 0.7rem;
    letter-spacing: 0.03em;
  }
}

/* page-read-width-force-v6: lock the whole msg content rail to 800px content box
   (昨夜今晨标准). Do not rely on flex child alone — also cap .content. */
@media (min-width: 900px) {
  :root { --read-max: 800px !important; }
  .shell.is-msg-page {
    grid-template-columns: var(--nav-w, 240px) minmax(0, 1fr) !important;
  }
  .shell.is-msg-page .content {
    display: block !important;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 864px !important; /* 800 + 32*2 padding */
    margin-left: auto !important;
    margin-right: auto !important;
    padding-left: 32px !important;
    padding-right: 32px !important;
    min-width: 0 !important;
  }
  .shell.is-msg-page .content > .page-read,
  .shell.is-msg-page .page-read,
  #app .shell.is-msg-page .page-read,
  .page-read {
    display: block !important;
    box-sizing: border-box !important;
    width: 100% !important;
    max-width: 800px !important;
    min-width: 0 !important;
    margin-left: auto !important;
    margin-right: auto !important;
    overflow-x: clip !important;
  }
  .shell.is-msg-page .page-read .msg-list,
  .shell.is-msg-page .page-read .msg-read-sticky,
  .shell.is-msg-page .page-read .load-more,
  .shell.is-msg-page .page-read .virt-mid,
  .shell.is-msg-page .page-read .msg-card {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
  }
  .shell.is-msg-page .page-read .msg-card {
    overflow-x: auto !important;
  }
  .shell.is-msg-page .page-read .stock-table,
  .shell.is-msg-page .page-read .imgs img {
    max-width: 100% !important;
  }
}
@supports not (overflow-x: clip) {
  @media (min-width: 900px) {
    .shell.is-msg-page .page-read { overflow-x: hidden !important; }
  }
}