/* ============================================================
   jm-view-server · 统一设计系统 (design tokens + 组件 + App Shell)
   单一 token 层驱动深/浅双主题。所有页面共用此文件。
   ============================================================ */

/* 字体：标题和数字使用本地 Space Grotesk woff2；
   中文正文使用系统无衬线字体，等宽内容使用 mono。 */
@font-face {
  font-family: 'Space Grotesk';
  src: url('/static/webfonts/SpaceGrotesk.woff2') format('woff2');
  font-weight: 400 700; font-display: swap;
}

/* ---------- 语义 token（浅色，默认） ---------- */
:root {
  /* 品牌色：统一 indigo 语义 token */
  --brand: #5b5bd6;
  --brand-hover: #4d4dc9;
  --brand-soft: #eef0fb;
  --brand-ring: rgba(91, 91, 214, 0.28);

  /* 中性面板 */
  --bg: #f6f7f9;              /* 页面底 —— 暖白而非刺眼纯白 */
  --bg-elevated: #ffffff;     /* 卡片/浮层 */
  --bg-sunken: #eef0f3;       /* 凹陷区（阅读区外框、输入底） */
  --surface-hover: #f0f1f4;

  /* 文字 */
  --text: #1a1c23;
  --text-secondary: #5b6070;
  --text-muted: #9aa0ae;
  --text-on-brand: #ffffff;

  /* 线条 */
  --border: #e4e7ec;
  --border-strong: #d0d5dd;

  /* 语义色 */
  --success: #12a150;
  --danger: #e5484d;
  --warning: #f5a623;

  /* 阴影：使用多层柔和投影 */
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.12), 0 2px 8px rgba(16, 24, 40, 0.06);
  --shadow-brand: 0 4px 14px var(--brand-ring);

  /* 圆角刻度 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-pill: 999px;

  /* 间距刻度（8pt 体系） */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px;

  /* 字体族 */
  --font-brand: 'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
  --font-sans: system-ui, -apple-system, 'Segoe UI', 'PingFang SC',
               'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Space Grotesk', ui-monospace, 'SF Mono', 'Menlo', monospace;

  --sidebar-w: 244px;
  --topbar-h: 60px;
  --ease: cubic-bezier(0.32, 0.72, 0, 1);
}

/* ---------- 深色主题 ---------- */
:root[data-theme="dark"] {
  --brand: #7c7cf0;
  --brand-hover: #8f8ff5;
  --brand-soft: #23233a;
  --brand-ring: rgba(124, 124, 240, 0.35);

  --bg: #0e0f16;             /* 墨黑蓝，非纯黑 */
  --bg-elevated: #171923;
  --bg-sunken: #0a0b11;
  --surface-hover: #1e2030;

  --text: #ecedf1;
  --text-secondary: #a3a9b8;
  --text-muted: #6b7183;
  --text-on-brand: #ffffff;

  --border: #262a38;
  --border-strong: #333849;

  --success: #30c46f;
  --danger: #ff6369;
  --warning: #ffb84d;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-brand: 0 4px 16px var(--brand-ring);
}

/* 深色模式下浮层/下拉与页面底色对比偏弱，统一加强边框 + 外发光描边，
   让最近浏览、操作菜单、跳页浮窗、移动/外观面板等浮层从背景中清晰浮起。 */
:root[data-theme="dark"] {
  --popover-border: #3a4055;
  --popover-glow: 0 0 0 1px rgba(255,255,255,.06), var(--shadow-lg);
}
:root[data-theme="dark"] .more-dropdown,
:root[data-theme="dark"] .recent-panel,
:root[data-theme="dark"] .jump-pop,
:root[data-theme="dark"] .move-card,
:root[data-theme="dark"] .appearance-modal,
:root[data-theme="dark"] .bookmarks-drawer {
  border-color: var(--popover-border);
  box-shadow: var(--popover-glow);
}

/* ============================================================
   基础重置
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .3s var(--ease), color .3s var(--ease);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; }
::selection { background: var(--brand-ring); }

/* 细腻滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--r-pill); border: 3px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); background-clip: content-box; }
::-webkit-scrollbar-track { background: transparent; }

/* ============================================================
   统一组件 · 按钮
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--sp-2);
  height: 38px; padding: 0 var(--sp-4);
  font-size: 14px; font-weight: 500;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: all .16s var(--ease);
  user-select: none;
}
.btn svg, .btn i { width: 16px; height: 16px; flex-shrink: 0; }
.btn:active { transform: translateY(1px) scale(0.99); }

.btn-primary { background: var(--brand); color: var(--text-on-brand); box-shadow: var(--shadow-brand); }
.btn-primary:hover { background: var(--brand-hover); }

.btn-outline { background: var(--bg-elevated); color: var(--text); border-color: var(--border-strong); }
.btn-outline:hover { background: var(--surface-hover); border-color: var(--text-muted); }

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--surface-hover); color: var(--text); }

.btn-icon { width: 38px; padding: 0; }
.btn-sm { height: 32px; padding: 0 var(--sp-3); font-size: 13px; }
.btn-block { width: 100%; }

/* ============================================================
   统一组件 · 卡片 / 输入 / 徽章
   ============================================================ */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}

.field { display: flex; flex-direction: column; gap: var(--sp-2); }
.field label { font-size: 13px; font-weight: 500; color: var(--text-secondary); }
.input {
  height: 42px; padding: 0 var(--sp-4);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  color: var(--text); font-size: 14px;
  transition: border-color .16s, box-shadow .16s;
  width: 100%;
}
.input::placeholder { color: var(--text-muted); }
.input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-ring); }

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  height: 22px; padding: 0 10px;
  font-size: 12px; font-weight: 500;
  border-radius: var(--r-pill);
  background: var(--brand-soft); color: var(--brand);
}
.badge-dot::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* 可复制的服务器地址 pill */
.addr-pill {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  height: 32px; padding: 0 var(--sp-3);
  background: var(--bg-sunken); border: 1px solid var(--border);
  border-radius: var(--r-pill); font-size: 13px; font-weight: 500;
  color: var(--text-secondary); cursor: pointer;
  transition: all .18s var(--ease);
  flex-shrink: 0;
}
.addr-pill:hover { border-color: var(--brand); color: var(--text); }
.addr-pill .dot { color: var(--brand); }
.addr-pill svg { width: 14px; height: 14px; flex-shrink: 0; }

/* ============================================================
   App Shell · 桌面侧栏 + 移动底栏（自适应）
   ============================================================ */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: 100vh;
  height: 100vh;
}
/* 侧栏宽度过渡（折叠/展开丝滑动画）；拖拽中临时关闭过渡以跟手 */
.app:not(.sidebar-dragging):not(.sidebar-initializing) { transition: grid-template-columns .26s var(--ease); }

/* 折叠态：侧栏收窄为图标条，隐藏文字 */
.app.sidebar-collapsed { --sidebar-w: 64px; }
.app.sidebar-collapsed .brand-name,
.app.sidebar-precollapse .brand-name,
.app.sidebar-collapsed .nav-item span,
.app.sidebar-precollapse .nav-item span,
.app.sidebar-collapsed .nav-item .count,
.app.sidebar-precollapse .nav-item .count,
.app.sidebar-collapsed .nav-label,
.app.sidebar-precollapse .nav-label,
.app.sidebar-collapsed .sidebar-foot > div:first-child > span,
.app.sidebar-precollapse .sidebar-foot > div:first-child > span {
  display: none;
}
.app.sidebar-collapsed .sidebar,
.app.sidebar-precollapse .sidebar { padding: var(--sp-3) var(--sp-2); align-items: stretch; }
.app.sidebar-collapsed .sidebar-brand,
.app.sidebar-precollapse .sidebar-brand { justify-content: center; padding: var(--sp-2) 0 var(--sp-4); }
.app.sidebar-collapsed .nav-item,
.app.sidebar-precollapse .nav-item { white-space: nowrap; justify-content: center; padding: 9px 0; }
.app.sidebar-collapsed .theme-toggle,
.app.sidebar-precollapse .theme-toggle { display: none; }

/* 拖拽中低于折叠阈值的“将要折叠”预览：淡化侧栏内容 + 右缘高亮，明确区分未到阈值/已进折叠意图区 */
.app.sidebar-precollapse .sidebar > *:not(.sidebar-resizer) { opacity: .35; transition: opacity .12s var(--ease); }
.app.sidebar-precollapse .sidebar { box-shadow: inset -2px 0 0 var(--brand); }

/* 侧栏 */
.sidebar {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  padding: var(--sp-4);
  gap: var(--sp-2);
  overflow: hidden;
}
/* 拖拽改宽度的把手（贴在侧栏右边缘） */
.sidebar-resizer {
  position: absolute; top: 0; right: -3px; bottom: 0; width: 6px;
  cursor: col-resize; z-index: 20;
}
.sidebar-resizer::after {
  content: ''; position: absolute; top: 0; bottom: 0; left: 2px; width: 2px;
  background: transparent; transition: background .16s;
}
.sidebar-resizer:hover::after, .app.sidebar-dragging .sidebar-resizer::after { background: var(--brand); }
.sidebar-brand {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-2) var(--sp-5);
  font-family: var(--font-brand);
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  background: var(--brand); color: #fff;
  box-shadow: var(--shadow-brand);
  flex-shrink: 0;
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-name { font-size: 16px; white-space: nowrap; font-weight: 600; letter-spacing: -0.01em; }
.brand-name small { display: block; font-size: 11px; font-weight: 400; color: var(--text-muted); letter-spacing: 0.02em; font-family: var(--font-sans); }

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); padding: var(--sp-3) var(--sp-2) var(--sp-1); }
.nav-item { white-space: nowrap;
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 9px var(--sp-3); border-radius: var(--r-md);
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: all .14s var(--ease);
}
.nav-item svg { width: 18px; height: 18px; opacity: .8; }
.nav-item:hover { background: var(--surface-hover); color: var(--text); }
.nav-item.active { background: var(--brand-soft); color: var(--brand); }
.nav-item.active svg { opacity: 1; }
.nav-item .count { margin-left: auto; font-size: 12px; font-family: var(--font-mono); color: var(--text-muted); }

.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: var(--sp-2); padding-top: var(--sp-4); border-top: 1px solid var(--border); }

/* 主区 */
.main { display: flex; flex-direction: column; overflow: hidden; min-width: 0; }
.topbar {
  /* PWA 全屏时让出手机顶部安全区（状态栏/刘海），避免遮挡内容 */
  height: calc(var(--topbar-h) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  flex-shrink: 0;
  display: flex; align-items: center; gap: var(--sp-3);
  padding-left: var(--sp-5); padding-right: var(--sp-5);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
  backdrop-filter: blur(12px);
  flex-wrap: nowrap;
}
.content { flex: 1; overflow-y: auto; padding: var(--sp-6); }
.content-narrow { max-width: 1180px; margin: 0 auto; }

/* 主题切换开关 */
.theme-toggle {
  display: inline-flex; align-items: center;
  width: 52px; height: 30px; padding: 3px;
  background: var(--bg-sunken); border: 1px solid var(--border);
  border-radius: var(--r-pill); cursor: pointer;
  transition: background .2s;
}
.theme-toggle .knob {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--bg-elevated); box-shadow: var(--shadow-sm);
  display: grid; place-items: center;
  transition: transform .28s var(--ease);
  color: var(--text-secondary);
}
.theme-toggle .knob svg { width: 13px; height: 13px; }
:root[data-theme="dark"] .theme-toggle .knob { transform: translateX(22px); }

/* 移动底栏（桌面隐藏） */
.mobile-bar { display: none; }

/* 面包屑 */
.crumbs { display: flex; align-items: center; gap: var(--sp-1); font-size: 14px; min-width: 0; overflow: hidden; white-space: nowrap; }
.crumbs a { color: var(--text-secondary); padding: 3px 6px; border-radius: var(--r-sm); white-space: nowrap; flex-shrink: 0; }
.crumbs a:hover { background: var(--surface-hover); color: var(--text); }
.crumbs .sep { color: var(--text-muted); flex-shrink: 0; }
.crumbs .cur { color: var(--text); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; direction: rtl; text-align: left; }

.spacer { margin-left: auto; }

/* 页面标题区 */
.page-head { margin-bottom: var(--sp-5); }
.page-head h1 { font-family: var(--font-brand); font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.page-head p { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }

/* ============================================================
   进入动画（一次页面载入的编排式渐显）
   ============================================================ */
@keyframes riseIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.rise { animation: riseIn .5s var(--ease) both; }

/* ============================================================
   响应式：≤ 860px 切换为移动底栏布局
   ============================================================ */
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; grid-template-rows: 1fr; }
  .sidebar { display: none; }
  .content { padding: var(--sp-4); padding-bottom: 84px; }
  .topbar { 
    padding: 8px var(--sp-4); 
    padding-top: calc(8px + env(safe-area-inset-top, 0px));
    height: auto; 
    min-height: 0;
  }
  
  /* 移动端保证全路径完整展示，并加个卡片包装 */
  .crumbs {
    background: var(--bg-sunken);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 6px 10px;
    display: block;
    word-break: break-all;
    white-space: normal;
    line-height: 1.4;
  }
  .crumbs a { display: inline-block; vertical-align: middle; padding: 0; }
  .crumbs .sep { margin: 0 4px; }
  .crumbs .cur { display: inline; white-space: normal; direction: ltr; }
  
  /* 移动端压缩 IP 栏为纯复制图标 */
  #addrText, #copyIco { display: none; }
  #netIco { opacity: 1 !important; display: flex; }
  .addr-pill { padding: 0; width: 32px; height: 32px; justify-content: center; border-radius: var(--r-md); }

  .mobile-bar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
    background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    padding: 8px 8px calc(8px + env(safe-area-inset-bottom, 0px));
  }
  .mobile-bar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 6px 0; font-size: 11px; color: var(--text-muted); border-radius: var(--r-md);
    transition: color .14s;
  }
  .mobile-bar a svg { width: 21px; height: 21px; }
  .mobile-bar a.active { color: var(--brand); }
}

/* ============================================================
   自定义外观：背景图 + 遮罩 + 设置面板
   ============================================================ */
/* 背景图挂 body：cover/center/fixed；遮罩层用页面底色淡化背景。 */
body.has-bg {
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}
#appBgMask {
  position: fixed; inset: 0; z-index: -1;
  background: var(--bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s var(--ease);
}
/* 背景生效时，让内容浮在遮罩之上 */
body.has-bg .app { position: relative; }

/* 设置面板：居中 modal + 遮罩 */
.appearance-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: grid; place-items: center;
  background: rgba(16, 24, 40, 0.42);
  backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .2s var(--ease);
}
.appearance-overlay.open { opacity: 1; }
.appearance-modal {
  width: min(440px, calc(100vw - 32px));
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  transform: translateY(8px) scale(.98);
  transition: transform .2s var(--ease);
  overflow: hidden;
}
.appearance-overlay.open .appearance-modal { transform: none; }
.appearance-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--sp-4); border-bottom: 1px solid var(--border);
}
.appearance-title {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-family: var(--font-brand); font-size: 16px; font-weight: 600;
}
.appearance-title svg { width: 18px; height: 18px; color: var(--brand); }
.appearance-close {
  display: grid; place-items: center; width: 30px; height: 30px;
  border-radius: var(--r-sm); color: var(--text-secondary);
}
.appearance-close:hover { background: var(--surface-hover); color: var(--text); }
.appearance-close svg { width: 17px; height: 17px; }
.appearance-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: var(--sp-5); }
.appearance-sec { display: flex; flex-direction: column; gap: var(--sp-3); }
.appearance-sec-label {
  font-size: 13px; font-weight: 600; color: var(--text);
  display: flex; align-items: center; gap: var(--sp-2);
}
.appearance-sec-label small { font-weight: 400; color: var(--text-muted); font-family: var(--font-mono); }
.appearance-swatches { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.appearance-swatch {
  width: 28px; height: 28px; border-radius: var(--r-pill);
  border: 2px solid var(--bg-elevated); box-shadow: 0 0 0 1px var(--border);
  transition: transform .12s var(--ease);
}
.appearance-swatch:hover { transform: scale(1.12); }
.appearance-row { display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap; }
.appearance-row .btn svg { width: 15px; height: 15px; margin-right: 4px; }
.appearance-color-pick {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-size: 13px; color: var(--text-secondary); cursor: pointer;
}
.appearance-color-pick input[type="color"] {
  width: 34px; height: 30px; padding: 0; border: 1px solid var(--border);
  border-radius: var(--r-sm); background: none; cursor: pointer;
}
.appearance-range { width: 100%; accent-color: var(--brand); cursor: pointer; }
.appearance-range:disabled { opacity: .5; cursor: not-allowed; }
.appearance-hint { font-size: 12px; color: var(--text-muted); }

/* ============================================================
   设置中心
   ============================================================ */
.settings-top-title { font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.settings-local-badge {
  padding: 5px 10px; border-radius: var(--r-pill); border: 1px solid var(--border);
  background: var(--bg-sunken); color: var(--text-secondary); font-size: 12px;
}
html.settings-page-root,
body.settings-page { height: 100%; overflow: hidden; }
.settings-page .app {
  height: 100vh;
  height: 100dvh;
  grid-template-rows: 100vh;
  grid-template-rows: 100dvh;
}
.settings-content {
  min-height: 0;
  scroll-behavior: auto;
  overflow-anchor: none;
  scrollbar-gutter: stable;
  overflow-x: hidden;
  overscroll-behavior-y: contain;
}
.settings-content.settings-preserve-scroll { scroll-behavior: auto !important; }
.settings-layout { width: min(1180px, 100%); margin: 0 auto; display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: var(--sp-7); }
.settings-rail { position: sticky; top: 0; align-self: start; display: flex; flex-direction: column; gap: 4px; padding: var(--sp-3); border-left: 1px solid var(--border); }
.settings-rail a { padding: 9px 12px; border-radius: var(--r-md); color: var(--text-secondary); font-size: 13px; }
.settings-rail a:hover { color: var(--text); background: var(--surface-hover); }
.settings-rail a.active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }
.settings-main { min-width: 0; display: flex; flex-direction: column; gap: var(--sp-8); padding-bottom: 80px; }
.settings-hero {
  display: flex; align-items: center; gap: var(--sp-5); padding: var(--sp-6);
  border: 1px solid var(--border); border-radius: var(--r-xl);
  background: linear-gradient(135deg, color-mix(in srgb, var(--brand) 12%, var(--bg-elevated)), var(--bg-elevated) 60%);
  box-shadow: var(--shadow-sm);
}
.settings-hero-icon { width: 68px; height: 68px; flex-shrink: 0; border-radius: 22px; display: grid; place-items: center; background: var(--brand); color: #fff; transform: rotate(-6deg); }
.settings-hero-icon svg { width: 32px; height: 32px; }
.settings-eyebrow { color: var(--brand); font-size: 11px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .12em; margin-bottom: 5px; }
.settings-hero h1 { font-family: var(--font-brand); font-size: clamp(24px, 3vw, 34px); line-height: 1.1; letter-spacing: -.035em; }
.settings-hero p:last-child { color: var(--text-secondary); margin-top: 8px; max-width: 660px; line-height: 1.6; }
.settings-section { scroll-margin-top: var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-4); }
.settings-section-head { display: flex; align-items: end; justify-content: space-between; gap: var(--sp-5); }
.settings-section-head > div { display: flex; align-items: baseline; gap: var(--sp-3); }
.settings-section-head span { font-family: var(--font-mono); font-size: 12px; color: var(--brand); }
.settings-section-head h2 { font-family: var(--font-brand); font-size: 21px; letter-spacing: -.02em; }
.settings-section-head p { color: var(--text-muted); font-size: 13px; text-align: right; }
.settings-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-3); }
.settings-card { padding: var(--sp-4); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--bg-elevated); box-shadow: var(--shadow-sm); min-width: 0; }
.settings-card-wide { grid-column: 1 / -1; }
.settings-label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: var(--sp-3); }
.settings-select, .settings-input { width: 100%; height: 42px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: var(--r-md); background: var(--bg); color: var(--text); }
.settings-inline { display: flex; align-items: center; gap: var(--sp-2); flex-wrap: wrap; }
.settings-swatches { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: var(--sp-3); }
.settings-swatches button { width: 30px; height: 30px; border-radius: 50%; border: 3px solid var(--bg-elevated); box-shadow: 0 0 0 1px var(--border); transition: transform .14s var(--ease), box-shadow .14s var(--ease); }
.settings-swatches button:hover { transform: scale(1.08); }
.settings-swatches button.active { box-shadow: 0 0 0 2px var(--brand); transform: scale(1.08); }
.settings-color-input { display: inline-flex; align-items: center; gap: 8px; color: var(--text-secondary); font-size: 13px; }
.settings-color-input input { width: 38px; height: 34px; padding: 2px; border: 1px solid var(--border); border-radius: var(--r-sm); background: none; }
.settings-file-btn input { display: none; }
.settings-range-row { margin-top: var(--sp-4); margin-bottom: 8px; display: flex; justify-content: space-between; color: var(--text-secondary); font-size: 13px; }
.settings-range-row output { color: var(--brand); font-family: var(--font-mono); }
.settings-range { width: 100%; accent-color: var(--brand); }
.settings-range:disabled { opacity: .4; }
.settings-segment { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px; padding: 5px; background: var(--bg-sunken); border-radius: var(--r-md); }
.settings-segment-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.settings-segment button { min-height: 38px; border-radius: calc(var(--r-md) - 3px); color: var(--text-secondary); font-size: 13px; }
.settings-segment button.active { background: var(--bg-elevated); color: var(--brand); box-shadow: var(--shadow-sm); font-weight: 600; }
.settings-segment-feature button { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 12px 14px; text-align: left; }
.settings-segment-feature button small { color: var(--text-muted); font-weight: 400; }
.settings-help { margin-top: 9px; color: var(--text-muted); font-size: 12px; line-height: 1.45; }
.settings-switch-row { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); cursor: pointer; }
.settings-switch-button {
  width: 100%; padding: 0; border: 0; background: transparent;
  color: inherit; font: inherit; text-align: left;
}
.settings-switch-row + .settings-switch-row { border-top: 1px solid var(--border); margin-top: var(--sp-4); padding-top: var(--sp-4); }
.settings-switch-row span { display: flex; flex-direction: column; gap: 3px; }
.settings-switch-row b { font-size: 14px; }
.settings-switch-row small { color: var(--text-muted); font-size: 12px; }
.settings-switch-row input {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); clip-path: inset(50%);
  white-space: nowrap; border: 0;
}
.settings-switch-row i { position: relative; width: 42px; height: 24px; border-radius: var(--r-pill); background: var(--border-strong); flex-shrink: 0; transition: background .16s var(--ease); }
.settings-switch-row i::after { content: ''; position: absolute; width: 18px; height: 18px; top: 3px; left: 3px; border-radius: 50%; background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,.25); transition: transform .16s var(--ease); }
.settings-switch-row input:checked + i { background: var(--brand); }
.settings-switch-row input:checked + i::after { transform: translateX(18px); }
.settings-switch-row input:focus-visible + i { box-shadow: 0 0 0 3px var(--brand-ring); }
.settings-switch-button[aria-checked="true"] i { background: var(--brand); }
.settings-switch-button[aria-checked="true"] i::after { transform: translateX(18px); }
.settings-switch-button:focus-visible i { box-shadow: 0 0 0 3px var(--brand-ring); }
.settings-action-card { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); }
.settings-action-card p { color: var(--text-muted); font-size: 12px; margin-top: 4px; }

/* File browsing preferences share one aligned panel. */
.settings-browser-panel {
  container-type: inline-size;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--bg-elevated);
  overflow: hidden;
}
.settings-browser-panel > .settings-card {
  padding: 18px 22px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.settings-browser-panel > .settings-card + .settings-card { border-top: 1px solid var(--border); }
.settings-browser-panel > .settings-card:nth-child(odd):not(:first-child) { border-left: 1px solid var(--border); }
.settings-browser-panel > .settings-browser-reset { flex-direction: column; align-items: stretch; gap: 12px; }
.settings-browser-reset .settings-inline { display: flex; }
.settings-browser-reset .btn { flex: 1; }
.settings-reader-detail { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.settings-reader-panel[hidden] { display: none; }
.settings-reader-fields { max-width: 680px; }
.settings-reader-fields .settings-segment { max-width: 480px; }
.settings-mode-option + .settings-mode-option { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }
.settings-common-heading { grid-column: 1 / -1; color: var(--text-secondary); font-size: 13px; font-weight: 600; margin-top: 4px; }
@media (max-width: 1100px) {
  .settings-browser-panel { grid-template-columns: minmax(0, 1fr); }
  .settings-browser-panel > .settings-card:nth-child(odd):not(:first-child) { border-left: 0; }
}

.settings-browser-view { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.settings-browser-label { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.settings-browser-label b { font-size: 14px; font-weight: 600; }
.settings-browser-label small { color: var(--text-muted); font-size: 12px; line-height: 1.6; }
.settings-browser-view .settings-segment { width: 300px; max-width: 100%; flex-shrink: 0; }
.settings-browser-panel .settings-segment button { min-height: 44px; }
.settings-browser-panel .settings-switch-row { min-height: 44px; }
.settings-browser-panel .settings-switch-row > span { min-width: 0; gap: 4px; }
.settings-browser-panel .settings-switch-row small { line-height: 1.6; }
.settings-browser-panel > .settings-browser-reset { background: var(--bg-sunken); }
.settings-browser-reset .settings-inline { flex-shrink: 0; }
.settings-browser-reset .btn { min-height: 44px; font-size: 12px; }
@container (max-width: 520px) {
  .settings-browser-view { align-items: stretch; flex-direction: column; gap: 12px; }
  .settings-browser-view .settings-segment { width: 100%; }
  .settings-browser-reset { align-items: stretch; flex-direction: column; }
  .settings-browser-reset .settings-inline { width: 100%; }
  .settings-browser-reset .btn { flex: 1; }
}
@media (max-width: 620px) {
  .settings-browser-panel > .settings-card { padding: 16px; }
  .settings-browser-view { align-items: stretch; flex-direction: column; gap: 12px; }
  .settings-browser-view .settings-segment { width: 100%; }
  .settings-browser-panel .settings-switch-row { gap: 16px; }
  .settings-browser-reset .settings-inline { width: 100%; }
  .settings-browser-reset .btn { flex: 1; }
}
.shortcut-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-2); }
.shortcut-row { min-height: 58px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--bg-elevated); display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); }
.shortcut-row > span { display: inline-flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.shortcut-row i { color: var(--text-muted); font-size: 10px; font-style: normal; }
.shortcut-row b { font-size: 13px; text-align: right; }
kbd { min-width: 28px; min-height: 26px; display: inline-grid; place-items: center; padding: 2px 7px; border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 6px; background: var(--bg-sunken); color: var(--text); font-family: var(--font-mono); font-size: 11px; }
.settings-data-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-3); }
.settings-data-card { padding: var(--sp-4); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--bg-elevated); display: grid; gap: 6px; }
.settings-data-card > span { font-family: var(--font-brand); font-size: 30px; color: var(--brand); }
.settings-data-card b { font-size: 13px; }
.settings-data-card button { justify-self: start; color: var(--danger); font-size: 12px; margin-top: 5px; }

/* 设置图标与文字共用控件热区，装饰图标不接管点击。 */
.settings-page .settings-icon { display: inline-flex; flex-direction: row; align-items: center; justify-content: center; width: 18px; height: 18px; flex: 0 0 18px; line-height: 0; pointer-events: none; }
.settings-icon svg { display: block; width: 100%; height: 100%; }
.settings-rail a, .settings-label, .settings-browser-label b, .settings-switch-row b, .settings-data-card b { display: flex; align-items: center; gap: 8px; }
.settings-rail a { min-height: 44px; }
.settings-section-head > div { align-items: center; }
.settings-page .settings-heading-icon { width: 36px; height: 36px; flex-basis: 36px; padding: 8px; border-radius: 10px; background: var(--brand-soft); color: var(--brand); }
.settings-label .settings-icon, .settings-browser-label .settings-icon, .settings-switch-row .settings-icon { color: var(--text-muted); }
.settings-segment button { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; }
.settings-segment-feature button { flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 5px; }
.settings-page .settings-mode-icon { width: 30px; height: 30px; flex-basis: 30px; margin-bottom: 4px; }
.settings-direction-reverse { transform: scaleX(-1); }
.settings-data-card button { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; }
.settings-footer-actions { display: flex; justify-content: space-between; gap: var(--sp-3); margin-top: var(--sp-4); }
.settings-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); }

@media (max-width: 860px) {
  .settings-layout { display: block; }
  .settings-rail { display: none; }
  .settings-content { padding: var(--sp-4); }
  .settings-main { gap: var(--sp-7); padding-bottom: 100px; }
  .settings-hero { align-items: flex-start; padding: var(--sp-5); }
  .settings-hero-icon { width: 52px; height: 52px; border-radius: 17px; }
  .settings-section-head { display: block; }
  .settings-section-head p { text-align: left; margin-top: 4px; }
  .settings-card-grid, .shortcut-grid { grid-template-columns: 1fr; }
  .settings-card-wide { grid-column: auto; }
  .settings-data-grid { grid-template-columns: 1fr; }
  .settings-action-card { align-items: flex-start; flex-direction: column; }
  .settings-footer-actions { flex-direction: column; }
  .settings-local-badge { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .settings-hero-icon, .settings-swatches button, .settings-switch-row i, .settings-switch-row i::after { transition: none; }
}

/* 首次使用引导 */
.onboarding-overlay {
  position: fixed; inset: 0; z-index: 1200; display: grid; place-items: center;
  padding: 20px; background: rgba(11, 13, 22, .58); backdrop-filter: blur(9px);
  opacity: 0; pointer-events: none; transition: opacity .18s var(--ease);
}
.onboarding-overlay.show { opacity: 1; pointer-events: auto; }
.onboarding-card {
  width: min(680px, 100%); padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--border); border-radius: var(--r-xl); background: var(--bg-elevated);
  box-shadow: var(--shadow-lg); transform: translateY(12px); transition: transform .18s var(--ease);
}
.onboarding-overlay.show .onboarding-card { transform: none; }
.onboarding-kicker { color: var(--brand); font: 11px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.onboarding-card h2 { margin-top: 7px; font-family: var(--font-brand); font-size: clamp(24px, 4vw, 34px); letter-spacing: -.035em; }
.onboarding-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); margin: var(--sp-6) 0; }
.onboarding-steps > div { padding: var(--sp-4); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--bg-sunken); }
.onboarding-steps span { color: var(--brand); font: 11px var(--font-mono); }
.onboarding-steps b { display: block; margin-top: 16px; font-size: 14px; }
.onboarding-steps p { margin-top: 6px; color: var(--text-secondary); font-size: 12px; line-height: 1.6; }
.onboarding-actions { display: flex; justify-content: flex-end; gap: var(--sp-3); }

@media (max-width: 640px) {
  .onboarding-steps { grid-template-columns: 1fr; gap: var(--sp-2); }
  .onboarding-steps > div { display: grid; grid-template-columns: 30px 1fr; column-gap: 8px; padding: 12px; }
  .onboarding-steps b { margin-top: 0; }
  .onboarding-steps p { grid-column: 2; }
  .onboarding-actions { flex-direction: column-reverse; }
  .onboarding-actions .btn { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .onboarding-overlay, .onboarding-card { transition: none; }
}