/* ============================================================
   HY2 Panel - Material Design 3 风格
   动态蓝色系 · 浅色/深色双模式 · 响应式
   ============================================================ */

/* ---------- 设计令牌 (MD3 Color Tokens) ---------- */
:root {
  --md-radius-card: 20px;
  --md-radius-pill: 999px;
  --md-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --md-font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace;
}

:root[data-theme="light"] {
  --md-primary: #0b57d0;
  --md-on-primary: #ffffff;
  --md-primary-container: #d8e2ff;
  --md-on-primary-container: #001a41;
  --md-secondary-container: #dce3f7;
  --md-on-secondary-container: #141b2c;
  --md-tertiary-container: #d6e3ff;
  --md-surface: #fbf8ff;
  --md-surface-1: #f5f5fa;
  --md-surface-2: #eceef6;
  --md-surface-3: #e6e9f2;
  --md-on-surface: #1a1c20;
  --md-on-surface-variant: #44474e;
  --md-outline: #74777f;
  --md-outline-variant: #c4c6d0;
  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;
  --md-success: #1e7b34;
  --md-success-container: #b7f0c3;
  --md-background: #f4f6fb;
  --md-inverse-surface: #2f3036;
  --md-inverse-on-surface: #f1f0f7;
  --md-shadow: 0 1px 2px rgba(15, 20, 30, 0.05), 0 2px 8px rgba(15, 20, 30, 0.04);
  --md-shadow-appbar: 0 1px 0 rgba(15, 20, 30, 0.06);
  --md-elevation-hover: 0 2px 6px rgba(15, 20, 30, 0.08), 0 6px 20px rgba(15, 20, 30, 0.07);
  --md-scrim: rgba(0, 0, 0, 0.32);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --md-primary: #a8c7fa;
  --md-on-primary: #00315f;
  --md-primary-container: #004494;
  --md-on-primary-container: #d8e2ff;
  --md-secondary-container: #404a5e;
  --md-on-secondary-container: #dce3f7;
  --md-tertiary-container: #004494;
  --md-surface: #131318;
  --md-surface-1: #1b1b22;
  --md-surface-2: #202028;
  --md-surface-3: #26262f;
  --md-on-surface: #e3e1e9;
  --md-on-surface-variant: #c7c6d0;
  --md-outline: #90929d;
  --md-outline-variant: #44464e;
  --md-error: #ffb4ab;
  --md-on-error: #690005;
  --md-error-container: #93000a;
  --md-on-error-container: #ffdad6;
  --md-success: #81c995;
  --md-success-container: #1e5631;
  --md-background: #0e0e12;
  --md-inverse-surface: #e3e1e9;
  --md-inverse-on-surface: #2f3036;
  --md-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 2px 10px rgba(0, 0, 0, 0.35);
  --md-shadow-appbar: 0 1px 0 rgba(255, 255, 255, 0.06);
  --md-elevation-hover: 0 2px 8px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.45);
  --md-scrim: rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--md-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--md-on-surface);
  background: var(--md-background);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
  touch-action: manipulation; /* 禁止双击/手势缩放 */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

button { font-family: inherit; border: none; background: none; cursor: pointer; color: inherit; }
input, pre, code { font-family: inherit; }
.hidden { display: none !important; }

/* ---------- 图标 ---------- */
.icon-sun { display: none; }
:root[data-theme="dark"] .icon-sun { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }

/* ============================================================
   通用组件
   ============================================================ */

/* --- MD3 Filled Button --- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-radius-pill);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1px;
  overflow: hidden;
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease, opacity 0.2s ease;
  user-select: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-filled { background: var(--md-primary); color: var(--md-on-primary); box-shadow: var(--md-shadow); }
.btn-filled:hover { filter: brightness(1.06); box-shadow: var(--md-elevation-hover); }
.btn-filled:disabled { background: var(--md-surface-3); color: var(--md-on-surface-variant); box-shadow: none; }

.btn-tonal { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.btn-tonal:hover { filter: brightness(1.05); }

.btn-outlined {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}
.btn-outlined:hover { background: var(--md-primary-container); border-color: var(--md-primary); }

.btn-text { background: transparent; color: var(--md-primary); padding: 0 16px; }
.btn-text:hover { background: var(--md-primary-container); }

.btn-block { width: 100%; }

/* --- MD3 Icon Button --- */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--md-on-surface-variant);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--md-surface-3); color: var(--md-on-surface); }
.icon-btn:active { transform: scale(0.9); }

/* --- MD3 Card --- */
.card {
  background: var(--md-surface-1);
  border-radius: var(--md-radius-card);
  border: 1px solid color-mix(in srgb, var(--md-primary) 65%, var(--md-surface-1));
  padding: 20px;
  box-shadow: var(--md-shadow);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  animation: card-in 0.35s cubic-bezier(0.2, 0, 0, 1) both;
}
.card:hover { box-shadow: var(--md-elevation-hover); }

@keyframes card-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-title {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.1px;
}
.card-title::before {
  content: "";
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--md-primary);
  flex-shrink: 0;
}
.card-sub { font-size: 13px; color: var(--md-on-surface-variant); margin-top: 2px; }

/* --- MD3 Outlined Text Field（label 与输入框分离，圆润） --- */
.field { margin-top: 16px; }
.field-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  margin-bottom: 7px;
  padding-left: 6px;
  letter-spacing: 0.2px;
}
.field-box {
  position: relative;
  height: 48px;
}
.field-input {
  width: 100%;
  height: 100%;
  padding: 0 16px;
  font-size: 15px;
  color: var(--md-on-surface);
  background: var(--md-surface-2);
  border: 1px solid var(--md-outline-variant);
  border-radius: 16px;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}
.field-input::placeholder { color: var(--md-outline); }
.field-input:hover { border-color: var(--md-outline); }
.field-input:focus {
  border-color: var(--md-primary);
  background: var(--md-surface);
  box-shadow: 0 0 0 1px var(--md-primary);
}
.field-input:disabled { opacity: 0.5; }

/* 输入框右侧操作按钮（随机生成等） */
.field-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  height: 32px;
  padding: 0 14px;
  border-radius: 16px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: filter 0.2s ease, transform 0.15s ease;
  flex-shrink: 0;
}
.field-btn:hover { filter: brightness(1.08); }
.field-btn:active { transform: translateY(-50%) scale(0.95); }
.field-box .field-input { padding-right: 64px; }
.field-box:has(.field-btn) .field-input { padding-right: 64px; }

/* 输入框右侧操作图标（如登录页显示密码） */
.field-icon {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface-variant);
  transition: background-color 0.2s ease, color 0.2s ease;
}
.field-icon:hover { background: var(--md-surface-3); color: var(--md-primary); }
.field-box:has(.field-icon) .field-input { padding-right: 52px; }

/* 圆角长方形小按钮（复制等） */
.btn-sm {
  height: 32px;
  padding: 0 16px;
  border-radius: 16px;
  font-size: 12.5px;
  font-weight: 600;
  flex-shrink: 0;
}

/* --- Chip --- */
.chip {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 12px;
  border-radius: var(--md-radius-pill);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid transparent;
}

/* --- 状态圆点 --- */
.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--md-outline);
  flex-shrink: 0;
  position: relative;
}
.status-dot.lg { width: 16px; height: 16px; }
.status-dot.on { background: var(--md-success); }
.status-dot.off { background: var(--md-error); }
.status-dot.on::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--md-success);
  opacity: 0;
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(0.6); opacity: 0.8; }
  70% { transform: scale(1.4); opacity: 0; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* --- 使用率进度条（CPU/内存/磁盘，三列一行） --- */
.bar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.bar-card {
  padding: 14px 12px 12px;
  min-width: 0;
}
.bar-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
.bar-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--md-on-surface);
  white-space: nowrap;
}
.bar-percent {
  font-size: 14px;
  font-weight: 600;
  color: var(--md-on-surface);
  flex-shrink: 0;
}
.bar {
  height: 6px;
  border-radius: var(--md-radius-pill);
  background: var(--md-surface-3);
  overflow: hidden;
  margin-top: 10px;
}
.bar-fill {
  height: 100%;
  width: 0;
  border-radius: var(--md-radius-pill);
  background: color-mix(in srgb, var(--md-primary) 88%, #000);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
}
.bar-fill.warn { background: var(--md-tertiary-container); }
.bar-fill.hot { background: var(--md-error); }
.bar-sub {
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- Snackbar --- */
.snackbar {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 80px);
  background: var(--md-inverse-surface);
  color: var(--md-inverse-on-surface);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 1000;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  max-width: min(92vw, 640px);
  box-shadow: var(--md-elevation-hover);
  pointer-events: none;
  text-align: center;
  line-height: 1.5;
}
.snackbar.show { transform: translate(-50%, 0); opacity: 1; }
.snackbar.error {
  background: var(--md-error);
  color: var(--md-on-error);
  max-width: min(94vw, 820px);
  padding: 14px 28px;
}

/* --- MD3 Dialog --- */
.dialog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  animation: overlay-in 0.2s ease;
}
.dialog {
  width: 100%;
  max-width: 320px;
  background: var(--md-surface-1);
  border-radius: 28px;
  padding: 24px 24px 16px;
  box-shadow: var(--md-elevation-hover);
  animation: dialog-in 0.25s cubic-bezier(0.2, 0, 0, 1) both;
}
.dialog-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 12px;
}
.dialog-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--md-on-surface-variant);
  margin: 0;
}
.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 24px;
}
.dialog-actions .btn { height: 40px; font-size: 14px; }
.dialog-actions .btn-danger { color: var(--md-error); }
.dialog-actions .btn-danger:hover { background: color-mix(in srgb, var(--md-error) 10%, transparent); }

@keyframes overlay-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes dialog-in {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

/* ============================================================
   登录页
   ============================================================ */
#view-login {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(600px 400px at 15% 10%, var(--md-primary-container) 0%, transparent 60%),
    radial-gradient(500px 380px at 90% 90%, var(--md-tertiary-container) 0%, transparent 55%),
    var(--md-background);
  padding: 20px;
  overflow-y: auto;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--md-surface-1);
  border-radius: 28px;
  padding: 40px 32px 32px;
  box-shadow: var(--md-elevation-hover);
  animation: card-in 0.4s cubic-bezier(0.2, 0, 0, 1) both;
  margin: auto;
  position: relative;
  overflow: hidden;
}
.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--md-primary);
  border-radius: 28px 28px 0 0;
}

.login-title {
  text-align: center;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.login-sub {
  text-align: center;
  color: var(--md-on-surface-variant);
  font-size: 13.5px;
  margin: 6px 0 8px;
}

.login-error {
  color: var(--md-error);
  font-size: 13px;
  min-height: 20px;
  margin-top: 12px;
  transition: opacity 0.2s ease;
}

/* --- 登录按钮（加厚、圆润） --- */
.btn-login {
  height: 50px;
  border-radius: 25px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-top: 16px;
  box-shadow: 0 2px 6px rgba(11, 87, 208, 0.25), var(--md-shadow);
}
.btn-login:hover { box-shadow: 0 4px 12px rgba(11, 87, 208, 0.35), var(--md-elevation-hover); }

#login-btn { margin-top: 10px; }

.login-theme {
  position: fixed;
  top: 16px;
  right: 16px;
  background: var(--md-surface-1);
  box-shadow: var(--md-shadow);
}

/* ============================================================
   后台布局
   ============================================================ */
#view-app { min-height: 100vh; display: flex; flex-direction: column; }

.app-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--md-surface);
  box-shadow: var(--md-shadow-appbar);
  transition: background-color 0.3s ease;
}
.app-bar-left { display: flex; align-items: center; gap: 10px; }
.app-bar-title { font-size: 19px; font-weight: 600; letter-spacing: 0.1px; }
.app-bar-actions { display: flex; align-items: center; gap: 4px; }
.app-bar-user {
  font-size: 13.5px;
  color: var(--md-on-surface-variant);
  margin-right: 8px;
  padding: 6px 14px;
  background: var(--md-surface-2);
  border-radius: var(--md-radius-pill);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.app-body { display: flex; flex: 1; min-height: 0; }

/* --- 桌面导航栏 (Navigation Rail) --- */
.nav-rail {
  width: 88px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 8px;
  flex-shrink: 0;
}
.nav-item {
  position: relative;
  width: 72px;
  height: 60px;
  border-radius: var(--md-radius-pill);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--md-on-surface-variant);
  font-size: 12px;
  font-weight: 500;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.nav-item:hover { background: var(--md-surface-2); color: var(--md-on-surface); }
.nav-item.active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 32px;
  border-radius: var(--md-radius-pill);
  background: var(--md-primary);
}

/* --- 页面容器 --- */
.page-wrap {
  flex: 1;
  min-width: 0;
  padding: 24px 24px 40px;
  overflow-x: hidden;
}

.page { display: none; }
.page.active {
  display: block;
  animation: page-in 0.3s cubic-bezier(0.2, 0, 0, 1) both;
}
@keyframes page-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.page-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.1px;
}
.page-sub { color: var(--md-on-surface-variant); font-size: 13.5px; margin-top: 4px; }
.page-header-actions { display: flex; align-items: center; gap: 8px; }

/* --- 网格 --- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

/* --- 仪表盘 --- */
.card-state-row { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.state-chips { display: flex; gap: 8px; flex-wrap: wrap; }

/* 网速显示（右上角，下行/上行） */
.net-speed {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border-radius: var(--md-radius-pill);
  background: var(--md-surface-2);
  white-space: nowrap;
}
.net-item {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.net-item svg { color: var(--md-primary); flex-shrink: 0; }
.net-item b {
  font-size: 12px;
  font-weight: 600;
  color: var(--md-on-surface);
  font-variant-numeric: tabular-nums;
}

/* Hysteria2 状态卡（全宽，横向布局） */
.hy2-status-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.hy2-status-card .card-state-row { margin-bottom: 0; }
.hy2-status-card .card-sub {
  font-size: 16px;
  font-weight: 600;
  margin-top: 3px;
}
#hy2-state-text.on { color: var(--md-success); }
#hy2-state-text.off { color: var(--md-error); }
#hy2-state-text.on::after { content: " ●"; font-size: 10px; vertical-align: middle; }
#hy2-state-text.off::after { content: " ●"; font-size: 10px; vertical-align: middle; }
/* 服务器信息：两列两行（标签小字在上，值在下） */
.info-card { margin-top: 24px; }
.info-list {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 24px;
}
.info-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 8px 4px;
  border-bottom: 1px solid var(--md-outline-variant);
}
.info-row:nth-last-child(-n + 2) { border-bottom: none; }
.info-row span {
  color: var(--md-on-surface-variant);
  flex-shrink: 0;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.2px;
}
.info-row b {
  font-weight: 600;
  text-align: left;
  word-break: break-all;
  overflow: hidden;
  color: var(--md-primary);
  font-size: 14px;
}

/* 运行时间横条（横跨整行，扁扁的） */
.uptime-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  padding: 8px 14px;
  border-radius: 12px;
  background: var(--md-surface-2);
  font-size: 13.5px;
}
.uptime-label {
  color: var(--md-on-surface-variant);
  flex-shrink: 0;
  font-weight: 500;
}
.uptime-bar b {
  font-weight: 600;
  color: var(--md-primary);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- 配置页 --- */
.form-card { max-width: 640px; }
.form-section { padding: 8px 0 18px; border-bottom: 1px solid var(--md-outline-variant); }
.form-section:last-of-type { border-bottom: none; }
.section-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--md-primary);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title::before {
  content: "";
  width: 3px;
  height: 13px;
  border-radius: 2px;
  background: var(--md-primary);
}

.form-hint { font-size: 12px; color: var(--md-on-surface-variant); margin-top: 10px; }

.tls-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 10px; }
.tls-path {
  font-family: var(--md-font-mono);
  font-size: 12.5px;
  background: var(--md-surface-2);
  padding: 4px 10px;
  border-radius: 8px;
  color: var(--md-on-surface-variant);
}

/* TLS 证书信息（单列：标签左、值右） */
.tls-info {
  margin-top: 14px;
  display: block;
  border-top: 1px solid var(--md-outline-variant);
  padding-top: 4px;
}
.tls-info .info-row {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 4px;
}
.tls-info .info-row b {
  font-size: 12.5px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.form-actions { padding-top: 20px; display: flex; align-items: center; justify-content: flex-end; gap: 12px; }

/* --- 服务页 --- */
.service-state-row { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.service-btns { display: flex; flex-direction: column; gap: 10px; }
.svc-row { display: flex; gap: 10px; }
.svc-btn { flex: 1; min-width: 0; padding: 0 12px; }

.log-card { margin-top: 16px; }
.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.log-actions { display: flex; align-items: center; gap: 4px; }
.auto-refresh {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  margin-right: 8px;
  user-select: none;
}
.auto-refresh input { accent-color: var(--md-primary); width: 15px; height: 15px; cursor: pointer; }

.log-content {
  font-family: var(--md-font-mono);
  font-size: 12px;
  line-height: 1.6;
  background: var(--md-surface-2);
  border-radius: 12px;
  padding: 14px;
  max-height: 380px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--md-on-surface);
}
.log-content::-webkit-scrollbar { width: 8px; height: 8px; }
.log-content::-webkit-scrollbar-thumb { background: var(--md-outline-variant); border-radius: 4px; }

/* --- 节点页 --- */
.link-card { max-width: 720px; }
.link-card + .link-card { margin-top: 18px; }

/* 两个链接在同一框内 */
.links-box {
  background: var(--md-surface-2);
  border-radius: 14px;
  padding: 2px 16px;
  margin-top: 12px;
}
.link-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 11px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
.link-row:last-child { border-bottom: none; }
.link-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.link-head .btn-sm {
  height: 26px;
  padding: 0 12px;
  border-radius: 13px;
  font-size: 12px;
  font-weight: 600;
}
.link-row code {
  font-family: var(--md-font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  word-break: break-all;
  user-select: all;
  color: var(--md-on-surface);
  width: 100%;
  /* 订阅链接下划线外观 */
  text-decoration: underline;
  text-decoration-color: var(--md-primary);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
}

.link-label {
  font-family: var(--md-font);
  font-size: 12px;
  font-weight: 600;
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
  padding: 3px 12px;
  border-radius: var(--md-radius-pill);
  flex-shrink: 0;
  letter-spacing: 0.3px;
}

.code-box {
  position: relative;
  display: flex;
  align-items: flex-start;
  background: var(--md-surface-2);
  border-radius: 12px;
  padding: 12px 12px 12px 14px;
  font-family: var(--md-font-mono);
  font-size: 12.5px;
}
.code-box code {
  flex: 1;
  word-break: break-all;
  line-height: 1.6;
  user-select: all;
}
.code-box pre {
  flex: 1;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
  font-family: var(--md-font-mono);
  overflow: auto;
}
.code-box .icon-btn { width: 32px; height: 32px; }
.code-box.tall { min-height: 260px; max-height: 380px; }
.code-box.tall pre { max-height: 360px; }

/* ============================================================
   移动端底部导航 (MD3 Navigation Bar)
   ============================================================ */
.nav-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 80px;
  background: var(--md-surface);
  box-shadow: 0 -1px 0 var(--md-outline-variant);
  z-index: 100;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
}
.nav-bar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  transition: color 0.2s ease;
  position: relative;
}
.nav-icon {
  width: 64px;
  height: 32px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}
.nav-icon svg { transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.2s ease; }
.nav-label { transition: font-weight 0.2s ease; }
.nav-bar-item.active { color: var(--md-primary); }
.nav-bar-item.active .nav-icon { background: var(--md-primary-container); }
.nav-bar-item.active .nav-icon svg { transform: scale(1.12); }
.nav-bar-item.active .nav-label { font-weight: 600; }
.nav-bar-item:hover .nav-icon { background: var(--md-surface-2); }
.nav-bar-item.active:hover .nav-icon { background: var(--md-primary-container); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 960px) {
  .grid-2 { grid-template-columns: 1fr; }
  .node-grid { grid-template-columns: 1fr; }
  .page-wrap { padding: 20px 16px 100px; }
}

@media (max-width: 720px) {
  .nav-rail { display: none; }
  .nav-bar { display: flex; }
  .app-bar-user { display: none; }
  .page-title { font-size: 21px; }
  .service-btns .btn { flex: 1; min-width: 0; padding: 0 12px; }
  /* 提示条显示在底部导航栏上方 */
  .snackbar { bottom: 96px; transform: translate(-50%, 120px); }
  .snackbar.show { transform: translate(-50%, 0); }
}

/* 降低动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}