/* ============================================================
   styles.css — 小米穿戴固件档案馆
   Material Design 3（橘色点缀）+ 中性表面，无玻璃无渐变
   性能优先：零 backdrop-filter、零大面积模糊
   ============================================================ */

/* ---------- 字体 ---------- */
@font-face {
  font-family: 'Google Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/googlesans/GoogleSans-Regular.woff2') format('woff2');
}
@font-face {
  font-family: 'Google Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/googlesans/GoogleSans-Medium.woff2') format('woff2');
}
@font-face {
  font-family: 'Google Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/googlesans/GoogleSans-Bold.woff2') format('woff2');
}

/* ============================================================
   tokens.css — MD3 设计令牌（橙色 seed #8F4C00，橘色仅作点缀）
   ============================================================ */

:root {
  /* 字体栈：拉丁字符优先走 Google Sans，中文回落 MiSans */
  --font-sans: 'Google Sans', 'MiSans', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-zh: 'MiSans', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-en: 'Google Sans', 'MiSans', sans-serif;

  /* 浅色主题：表面为暖中性色，橘色仅用于强调 */
  --md-primary: #8f4c00;
  --md-on-primary: #ffffff;
  --md-primary-container: #ffdcc2;
  --md-on-primary-container: #2e1500;

  --md-secondary: #77574a;
  --md-on-secondary: #ffffff;
  --md-secondary-container: #ffdbc9;
  --md-on-secondary-container: #2b160b;

  --md-tertiary: #9c432b;
  --md-on-tertiary: #ffffff;
  --md-tertiary-container: #ffdad0;
  --md-on-tertiary-container: #3b0900;

  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;

  --md-background: #fff8f6;
  --md-on-background: #221a16;
  --md-surface: #fff8f6;
  --md-on-surface: #221a16;
  --md-surface-variant: #f5ded4;
  --md-on-surface-variant: #53443c;
  --md-outline: #85736a;
  --md-outline-variant: #d8c2b8;

  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #fff1eb;
  --md-surface-container: #fbe9e2;
  --md-surface-container-high: #f5e3dc;
  --md-surface-container-highest: #efddd6;

  --md-inverse-surface: #382e29;
  --md-inverse-on-surface: #ffede6;
  --md-inverse-primary: #ffb77d;
  --md-surface-tint: #8f4c00;

  /* MD3 状态层不透明度 */
  --state-hover: 0.08;
  --state-focus: 0.12;
  --state-pressed: 0.12;
  --state-dragged: 0.16;

  /* MD3 圆角体系 */
  --shape-extra-small: 4px;
  --shape-small: 8px;
  --shape-medium: 12px;
  --shape-large: 16px;
  --shape-extra-large: 28px;
  --shape-full: 999px;

  /* MD3 阴影层级 */
  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
  --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
  --elevation-3: 0 1px 3px rgba(0, 0, 0, 0.3), 0 4px 8px 3px rgba(0, 0, 0, 0.15);

  /* 动效（轻量，避免卡顿） */
  --motion-fast: 140ms cubic-bezier(0.2, 0, 0, 1);
  --motion-med: 220ms cubic-bezier(0.2, 0, 0, 1);
  --motion-slow: 320ms cubic-bezier(0.2, 0, 0, 1);
}

/* ---------- 深色主题（手动切换） ---------- */
[data-theme='dark'] {
  --md-primary: #ffb77d;
  --md-on-primary: #4a2800;
  --md-primary-container: #6a3a00;
  --md-on-primary-container: #ffdcc2;

  --md-secondary: #e7bfae;
  --md-on-secondary: #402a1e;
  --md-secondary-container: #594034;
  --md-on-secondary-container: #ffdbc9;

  --md-tertiary: #ffb4a3;
  --md-on-tertiary: #5d1800;
  --md-tertiary-container: #7a2e18;
  --md-on-tertiary-container: #ffdad0;

  --md-error: #ffb4ab;
  --md-on-error: #690005;
  --md-error-container: #93000a;
  --md-on-error-container: #ffdad6;

  --md-background: #1a120e;
  --md-on-background: #f0dfd8;
  --md-surface: #1a120e;
  --md-on-surface: #f0dfd8;
  --md-surface-variant: #53443c;
  --md-on-surface-variant: #d8c2b8;
  --md-outline: #a08d83;
  --md-outline-variant: #53443c;

  --md-surface-container-lowest: #140d09;
  --md-surface-container-low: #221a16;
  --md-surface-container: #271e1a;
  --md-surface-container-high: #322823;
  --md-surface-container-highest: #3d322d;

  --md-inverse-surface: #f0dfd8;
  --md-inverse-on-surface: #382e29;
  --md-inverse-primary: #8f4c00;
  --md-surface-tint: #ffb77d;
}

/* ---------- 深色主题（跟随系统） ---------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --md-primary: #ffb77d;
    --md-on-primary: #4a2800;
    --md-primary-container: #6a3a00;
    --md-on-primary-container: #ffdcc2;

    --md-secondary: #e7bfae;
    --md-on-secondary: #402a1e;
    --md-secondary-container: #594034;
    --md-on-secondary-container: #ffdbc9;

    --md-tertiary: #ffb4a3;
    --md-on-tertiary: #5d1800;
    --md-tertiary-container: #7a2e18;
    --md-on-tertiary-container: #ffdad0;

    --md-error: #ffb4ab;
    --md-on-error: #690005;
    --md-error-container: #93000a;
    --md-on-error-container: #ffdad6;

    --md-background: #1a120e;
    --md-on-background: #f0dfd8;
    --md-surface: #1a120e;
    --md-on-surface: #f0dfd8;
    --md-surface-variant: #53443c;
    --md-on-surface-variant: #d8c2b8;
    --md-outline: #a08d83;
    --md-outline-variant: #53443c;

    --md-surface-container-lowest: #140d09;
    --md-surface-container-low: #221a16;
    --md-surface-container: #271e1a;
    --md-surface-container-high: #322823;
    --md-surface-container-highest: #3d322d;

    --md-inverse-surface: #f0dfd8;
    --md-inverse-on-surface: #382e29;
    --md-inverse-primary: #8f4c00;
    --md-surface-tint: #ffb77d;
  }
}

/* ============================================================
   base.css — 重置、排版、背景、焦点、无障碍
   ============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--md-on-surface);
  background: var(--md-background);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color var(--motion-med), color var(--motion-med);
}

h1, h2, h3, p, ul {
  margin: 0;
}

a {
  color: var(--md-primary);
}

button {
  font-family: inherit;
}

img, svg {
  display: block;
}

::selection {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* 图标基类：sprite 内 SVG 继承 currentColor */
.icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
  flex: none;
}

/* 键盘焦点：MD3 风格焦点环（橘色点缀） */
:focus-visible {
  outline: 3px solid var(--md-primary);
  outline-offset: 2px;
  border-radius: var(--shape-small);
}

/* 跳转链接 */
.skip-link {
  position: fixed;
  top: -48px;
  left: 16px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: var(--shape-small);
  background: var(--md-inverse-surface);
  color: var(--md-inverse-on-surface);
  font-weight: 500;
  text-decoration: none;
  transition: top var(--motion-fast);
}
.skip-link:focus {
  top: 12px;
}

/* 背景：纯色（无渐变无模糊，性能优先） */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--md-background);
  transition: background-color var(--motion-med);
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-thumb {
  background: var(--md-outline-variant);
  border-radius: var(--shape-full);
  border: 2px solid var(--md-background);
}
::-webkit-scrollbar-track {
  background: transparent;
}

/* ---------- 减少动效（无障碍） ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   components.css — 顶栏、图标按钮、筛选芯片、搜索、统计卡、
   设备卡、徽标、按钮、骨架屏、状态区、折叠区
   ============================================================ */

/* 表面卡（MD3 elevated card：surface 底 + elevation-1，无边框） */
.glass {
  background: var(--md-surface);
  border: none;
  box-shadow: var(--elevation-1);
}

/* ---------- 顶部应用栏（MD3 标准栏） ---------- */
.appbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--md-surface);
  box-shadow: var(--elevation-1);
}
.appbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--shape-medium);
  display: grid;
  place-items: center;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  min-width: 0;
}
.brand-title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--md-on-surface);
  white-space: nowrap;
}
.brand-sub {
  font-size: 11.5px;
  letter-spacing: 0.5px;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
}

.appbar__actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sync-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--shape-full);
  font-size: 12px;
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  white-space: nowrap;
}
.sync-chip .icon {
  width: 16px;
  height: 16px;
}

/* ---------- 图标按钮（含 MD3 状态层） ---------- */
.icon-button {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--shape-full);
  color: var(--md-on-surface-variant);
  background: transparent;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: color var(--motion-fast), background-color var(--motion-fast);
}
.icon-button::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--motion-fast);
  pointer-events: none;
}
.icon-button:hover::after {
  opacity: var(--state-hover);
}
.icon-button:active::after {
  opacity: var(--state-pressed);
}
.icon-button.is-spinning .icon {
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- 筛选芯片（M3 filter chip：corner 8，选中态橘色点缀） ---------- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 16px;
  border-radius: var(--shape-small);
  border: 1px solid var(--md-outline-variant);
  background: transparent;
  color: var(--md-on-surface-variant);
  font-size: 14px;
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  transition: background-color var(--motion-fast), border-color var(--motion-fast), color var(--motion-fast);
}
.chip::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--motion-fast);
  pointer-events: none;
}
.chip:hover::after {
  opacity: var(--state-hover);
}
.chip:active::after {
  opacity: var(--state-pressed);
}
.chip__check {
  width: 18px;
  height: 18px;
  opacity: 0;
  margin-right: -18px;
  transition: opacity var(--motion-fast), margin-right var(--motion-fast);
}
.chip__count {
  font-size: 12px;
  opacity: 0.72;
}
.chip[aria-pressed='true'] {
  background: var(--md-primary-container);
  border-color: transparent;
  color: var(--md-on-primary-container);
  font-weight: 500;
}
.chip[aria-pressed='true'] .chip__check {
  opacity: 1;
  margin-right: 0;
}

/* ---------- 搜索框 ---------- */
.search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  min-width: 220px;
  padding: 0 14px;
  border-radius: var(--shape-full);
  border: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-low);
  color: var(--md-on-surface-variant);
  transition: border-color var(--motion-fast), background-color var(--motion-fast);
}
.search .icon {
  width: 20px;
  height: 20px;
}
.search input {
  width: 100%;
  border: none;
  background: none;
  outline: none;
  color: var(--md-on-surface);
  font-size: 14px;
  font-family: inherit;
}
.search input::placeholder {
  color: var(--md-on-surface-variant);
}
.search:focus-within {
  border-color: var(--md-primary);
  background: var(--md-surface-container);
}

/* ---------- 统计卡 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 20px;
  border-radius: var(--shape-medium);
}
.stat__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--shape-small);
  display: grid;
  place-items: center;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}
.stat__icon--new {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
}
.stat__value {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.4px;
  color: var(--md-on-surface);
  font-variant-numeric: tabular-nums;
}
.stat__value--small {
  font-size: 22px;
}
.stat__label {
  font-size: 13px;
  color: var(--md-on-surface-variant);
}

/* ---------- 设备卡 ---------- */
.device-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  border-radius: var(--shape-medium);
  transition: transform var(--motion-fast), box-shadow var(--motion-fast), border-color var(--motion-fast);
}
.device-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-2);
}
.device-card:active {
  transform: scale(0.99);
}
.device-card.is-new {
  border: 1px solid color-mix(in srgb, var(--md-primary) 45%, transparent);
}

.device-card__head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.device-card__img {
  width: 56px;
  height: 56px;
  flex: none;
  border-radius: 16px;
  overflow: hidden;
  background: var(--md-surface-container-highest);
  border: 1px solid var(--md-outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
}
.device-card__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.device-card__img .icon {
  width: 28px;
  height: 28px;
  color: var(--md-on-surface-variant);
}
.device-card.is-new .device-card__img {
  background: var(--md-primary-container);
}
.device-card__name {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.3px;
  color: var(--md-on-surface);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.device-card__full {
  font-size: 13px;
  color: var(--md-on-surface-variant);
  margin-top: 2px;
}

.device-card__fw {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--shape-medium);
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
}
.fw-label {
  font-size: 12px;
  color: var(--md-on-surface-variant);
  flex: none;
}
.fw-version {
  font-family: var(--font-en);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--md-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.fw-date {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
}
.fw-date .icon {
  width: 15px;
  height: 15px;
}

.device-card__foot {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ---------- 状态徽标（M3 assist chip 风格：corner 8 + 边框） ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 28px;
  padding: 0 12px;
  border-radius: var(--shape-small);
  border: 1px solid var(--md-outline-variant);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2px;
  background: var(--md-surface-container-highest);
  color: var(--md-on-surface-variant);
  white-space: nowrap;
}
.badge--ok {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: transparent;
}
.badge--warn {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
  border-color: transparent;
}
.badge--beta {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-color: transparent;
}
.badge--unknown {
  background: var(--md-error-container);
  color: var(--md-on-error-container);
  border-color: transparent;
}
.badge--new {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border-color: transparent;
}
.badge--info {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: transparent;
}

/* ---------- 按钮 ---------- */
.filled-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  border-radius: var(--shape-full);
  border: none;
  background: var(--md-primary);
  color: var(--md-on-primary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--elevation-1);
  transition: box-shadow var(--motion-fast), background-color var(--motion-fast);
}
.filled-button::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--motion-fast);
  pointer-events: none;
}
.filled-button:hover::after {
  opacity: var(--state-hover);
}
.filled-button:active::after {
  opacity: var(--state-pressed);
}
.filled-button .icon {
  width: 17px;
  height: 17px;
}

/* ---------- 骨架屏 ---------- */
.skeleton {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  border-radius: var(--shape-medium);
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
}
.skeleton__row {
  display: flex;
  gap: 12px;
  align-items: center;
}
.skeleton__box {
  width: 44px;
  height: 44px;
  border-radius: var(--shape-medium);
  background: var(--md-surface-container-highest);
}
.skeleton__line {
  height: 14px;
  border-radius: var(--shape-extra-small);
  background: var(--md-surface-container-high);
  position: relative;
  overflow: hidden;
}
.skeleton__line::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--md-on-surface) 8%, transparent), transparent);
  animation: shimmer 1.4s ease-in-out infinite;
}
.skeleton__line--w60 { width: 60%; }
.skeleton__line--w80 { width: 80%; }
.skeleton__line--w40 { width: 40%; }
.skeleton__line--h24 { height: 24px; }
@keyframes shimmer {
  to {
    transform: translateX(100%);
  }
}

/* ---------- 状态区（空态 / 错误态） ---------- */
.state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 56px 24px;
  border-radius: var(--shape-medium);
  text-align: center;
  color: var(--md-on-surface-variant);
}
.state__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--shape-large);
  display: grid;
  place-items: center;
  background: var(--md-surface-container-highest);
  color: var(--md-on-surface-variant);
}
.state__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--md-on-surface);
}
.state__desc {
  font-size: 14px;
  max-width: 420px;
}

/* ---------- 入场动画（轻量，避免卡顿） ---------- */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--motion-med), transform var(--motion-med);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   layout.css — 页面骨架、区块、网格、折叠区
   ============================================================ */

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 0;
}

/* ---------- 页首 ---------- */
.hero {
  margin-bottom: 24px;
}
.hero__title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.4px;
  color: var(--md-on-surface);
}
.hero__sub {
  margin-top: 8px;
  max-width: 660px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--md-on-surface-variant);
}

/* ---------- 工具栏 ---------- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* ---------- 区块 ---------- */
.section {
  margin-top: 36px;
}
.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.section__title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--md-on-surface);
}
.section__sub {
  margin-top: 4px;
  font-size: 13px;
  color: var(--md-on-surface-variant);
}
.section__count {
  font-size: 13px;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
}

/* ---------- 设备网格 ---------- */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

/* ---------- 内容区 ---------- */
.content {
  margin-top: 28px;
}

/* ---------- 折叠区（其他/待确认设备） ---------- */
.collapse {
  margin-top: 36px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-medium);
  background: var(--md-surface-container-low);
  overflow: hidden;
}
.collapse__head {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  color: var(--md-on-surface);
  text-align: left;
  overflow: hidden;
}
.collapse__head::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--motion-fast);
  pointer-events: none;
}
.collapse__head:hover::after {
  opacity: var(--state-hover);
}
.collapse__head:active::after {
  opacity: var(--state-pressed);
}
.collapse__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
}
.collapse__title .icon {
  width: 20px;
  height: 20px;
  color: var(--md-primary);
}
.collapse__sub {
  font-size: 12.5px;
  color: var(--md-on-surface-variant);
  margin-top: 2px;
}
.collapse__count {
  margin-left: auto;
  font-size: 12px;
  font-weight: 500;
  color: var(--md-on-primary-container);
  background: var(--md-primary-container);
  padding: 3px 10px;
  border-radius: var(--shape-full);
  white-space: nowrap;
  font-family: var(--font-en);
}
.collapse__chevron .icon {
  width: 20px;
  height: 20px;
  color: var(--md-on-surface-variant);
  transition: transform var(--motion-med);
}
.collapse.open .collapse__chevron .icon {
  transform: rotate(180deg);
}
.collapse__body {
  display: none;
  padding: 0 16px 16px;
}
.collapse.open .collapse__body {
  display: block;
}

/* ---------- 页脚 ---------- */
.footer {
  max-width: 1200px;
  margin: 48px auto 24px;
  padding: 16px 20px;
  border-radius: var(--shape-medium);
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
}
.footer__line {
  font-size: 12px;
  line-height: 1.9;
  color: var(--md-on-surface-variant);
}
.footer__line a {
  color: var(--md-on-surface-variant);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer__line a:hover {
  color: var(--md-primary);
}

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .page {
    padding: 20px 16px 0;
  }
  .hero__title {
    font-size: 25px;
  }
  .appbar__inner {
    padding: 8px 16px;
  }
  .brand-sub {
    display: none;
  }
  .sync-chip {
    display: none;
  }
  .device-grid {
    grid-template-columns: 1fr;
  }
  .search {
    min-width: 0;
    flex: 1;
  }
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .collapse__head {
    flex-wrap: wrap;
    gap: 8px;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 1400px) {
  .page,
  .footer,
  .appbar__inner {
    max-width: 1320px;
  }
}

/* ============================================================
   详情抽屉（MD3，无玻璃）
   ============================================================ */

.drawer-scrim {
  position: fixed;
  inset: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.42);
  z-index: 40;
  border: none;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}
.drawer-scrim.show {
  opacity: 1;
  pointer-events: auto;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(680px, 100%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  background: var(--md-surface-container-high);
  border-left: 1px solid var(--md-outline-variant);
  box-shadow: var(--elevation-3);
  transform: translateX(105%);
  transition: transform 0.28s cubic-bezier(0.2, 0, 0, 1);
  overflow: hidden;
}
.drawer.open {
  transform: none;
}
.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-high);
}
.drawer__title {
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.drawer__title .icon {
  color: var(--md-primary);
}
.drawer__body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  -webkit-overflow-scrolling: touch;
}

.dw-hero {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}
.dw-hero .dw-img {
  width: 76px;
  height: 76px;
  flex: none;
  border-radius: 20px;
  overflow: hidden;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
}
.dw-hero .dw-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.dw-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.3;
}
.dw-code {
  font-family: var(--font-en);
  font-size: 13px;
  color: var(--md-on-surface-variant);
  margin-top: 4px;
}
.dw-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-radius: var(--shape-medium);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 14px;
}
.dw-note .icon {
  width: 17px;
  height: 17px;
  flex: none;
  margin-top: 2px;
}
.dw-section-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  margin: 2px 0 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.dw-section-title .icon {
  width: 17px;
  height: 17px;
}

/* 版本手风琴：默认全部收起，避免页面又长又窄 */
.rel {
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-medium);
  margin-bottom: 8px;
  overflow: hidden;
  background: var(--md-surface-container-low);
}
.rel-head {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
  user-select: none;
  overflow: hidden;
}
.rel-head::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--motion-fast);
  pointer-events: none;
}
.rel-head:hover::after {
  opacity: var(--state-hover);
}
.rel-head:active::after {
  opacity: var(--state-pressed);
}
.rel-ver {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--md-primary);
}
.rel-count {
  font-size: 12px;
  color: var(--md-on-surface-variant);
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-en);
  white-space: nowrap;
}
.rel-count .icon {
  width: 16px;
  height: 16px;
  transition: transform 0.18s ease;
}
.rel.open .rel-count .icon {
  transform: rotate(180deg);
}
.rel-files {
  display: none;
  border-top: 1px solid var(--md-outline-variant);
}
.rel.open .rel-files {
  display: block;
}

/* 文件行：单行紧凑（文件名截断 + 按钮组），不再撑高页面 */
.file-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 9px 14px;
  border-top: 1px solid color-mix(in srgb, var(--md-outline-variant) 55%, transparent);
}
.file-row:first-child {
  border-top: none;
}
.file-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.file-type {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 999px;
  flex: none;
}
.file-type.full {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}
.file-type.delta {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.file-name {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--md-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}
.file-size {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--md-outline);
  flex: none;
  font-variant-numeric: tabular-nums;
}
.file-actions {
  display: flex;
  gap: 6px;
  flex: none;
}
.mini-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--md-outline);
  background: transparent;
  color: var(--md-on-surface);
  border-radius: var(--shape-full);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  overflow: hidden;
  text-decoration: none;
  transition: background-color var(--motion-fast), border-color var(--motion-fast);
}
.mini-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--motion-fast);
  pointer-events: none;
}
.mini-btn:hover::after {
  opacity: var(--state-hover);
}
.mini-btn:active::after {
  opacity: var(--state-pressed);
}
.mini-btn.primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border-color: transparent;
}
.mini-btn.primary:hover {
  background: var(--md-primary);
  filter: brightness(1.06);
}
.mini-btn .icon {
  width: 14px;
  height: 14px;
}

/* toast 已移除（复制功能删除，无提示需求） */

/* 分类标签 */
.cat-tag {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  font-family: var(--font-en);
}

/* 图片占位：图标垫底，img 加载失败后露出 */
.device-card__img,
.dw-img {
  position: relative;
}
.device-card__img > .icon,
.dw-img > .icon {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 28px;
  height: 28px;
  color: var(--md-on-surface-variant);
}
.device-card__img img,
.dw-img img {
  position: relative;
  z-index: 1;
  /* 不透明背景：透明背景图不再透出下层 SVG；inherit 跟随容器色（is-new 时随 primary-container） */
  background: inherit;
}

/* ---------- 下载引导弹窗（MD3 风格，与站点统一） ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background .3s;
  padding: 16px;
}
.modal-overlay.show {
  background: rgba(0,0,0,.45);
}
.modal {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--md-surface-container-high, #f5e3dc);
  color: var(--md-on-surface, #201a16);
  border: 1px solid var(--md-outline-variant, #d8c2b8);
  border-radius: var(--shape-extra-large, 28px);
  padding: 28px 24px 20px;
  box-shadow: var(--elevation-3, 0 1px 3px rgba(0,0,0,.3), 0 4px 8px 3px rgba(0,0,0,.15));
  transform: translateY(24px) scale(.96);
  opacity: 0;
  transition: transform .3s, opacity .3s;
}
.modal-overlay.show .modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.modal__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.modal__icon {
  flex: none;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--shape-full, 999px);
  background: var(--md-primary-container, #ffdcc2);
  color: var(--md-on-primary-container, #2e1500);
}
.modal__icon .icon {
  width: 22px;
  height: 22px;
}
.modal__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.modal__reason {
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--md-on-surface-variant, #53443c);
  line-height: 1.6;
}
.modal__speed {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: -4px 0 16px;
  padding: 10px 12px;
  background: var(--md-surface-container-low, #fff1eb);
  border: 1px dashed var(--md-outline-variant, #d8c2b8);
  border-radius: var(--shape-medium, 12px);
  font-size: 12px;
  line-height: 1.55;
  color: var(--md-on-surface-variant, #53443c);
}
.modal__speed strong {
  color: var(--md-primary, #8f4c00);
  font-weight: 700;
}
.modal__speed .spd-ratio {
  display: block;
  margin-top: 2px;
}
.spd-dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--md-primary, #8f4c00);
}
.spd-dot.is-busy {
  animation: spdPulse 1s ease-in-out infinite;
}
.spd-dot.is-fail {
  background: var(--md-error, #ba1a1a);
}
@keyframes spdPulse {
  0%, 100% { opacity: .3; }
  50% { opacity: 1; }
}
.modal__filename {
  margin-bottom: 18px;
}
.modal__fname-label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--md-on-surface-variant, #53443c);
  margin-bottom: 6px;
}
.modal__fname-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--md-surface-container-low, #fff1eb);
  border: 1px solid var(--md-outline-variant, #d8c2b8);
  border-radius: var(--shape-medium, 12px);
  padding: 10px 12px;
}
.modal__fname {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  font-family: var(--font-en, 'MiSans'), monospace, sans-serif;
  word-break: break-all;
  line-height: 1.4;
  color: var(--md-on-surface, #201a16);
}
.modal__copy-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: none;
  border-radius: var(--shape-full, 999px);
  background: var(--md-primary-container, #ffdcc2);
  color: var(--md-on-primary-container, #2e1500);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: opacity .2s;
}
.modal__copy-btn .icon {
  width: 14px;
  height: 14px;
}
.modal__copy-btn:hover { opacity: .85; }
.modal__copy-btn:disabled, .modal__copy-btn.is-busy { opacity: .6; cursor: default; }
.modal__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.modal__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--shape-full, 999px);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity .2s, transform .15s, box-shadow var(--motion-fast, 140ms);
  cursor: pointer;
  font-family: inherit;
}
.modal__btn:hover { opacity: .88; }
.modal__btn:active { transform: scale(.98); }
.modal__btn .icon {
  width: 18px;
  height: 18px;
}
.modal__btn--quark {
  background: var(--md-primary, #8f4c00);
  color: var(--md-on-primary, #ffffff);
  box-shadow: var(--elevation-1, 0 1px 2px rgba(0,0,0,.3), 0 1px 3px 1px rgba(0,0,0,.15));
}
.modal__btn--github {
  background: transparent;
  color: var(--md-on-surface-variant, #53443c);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  text-align: center;
  border: 1px solid var(--md-outline-variant, #d8c2b8);
  border-radius: var(--shape-full, 999px);
}
.modal__btn--github:hover {
  background: var(--md-surface-variant, #f5ded4);
}
.modal__close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--md-on-surface-variant, #53443c);
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal__close .icon {
  width: 18px;
  height: 18px;
}
.modal__close:hover {
  background: var(--md-surface-variant, #f5ded4);
}
@media (max-width: 480px) {
  .modal {
    padding: 20px 16px 16px;
    border-radius: var(--shape-large, 16px);
  }
  .modal__title { font-size: 16px; }
}

/* 弹窗按钮（欢迎弹窗复用） */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: var(--shape-full, 999px);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: opacity .2s, transform .15s, box-shadow var(--motion-fast, 140ms);
}
.btn:hover { opacity: .88; }
.btn:active { transform: scale(.98); }
.btn .icon {
  width: 18px;
  height: 18px;
}
.btn--primary {
  background: var(--md-primary, #8f4c00);
  color: var(--md-on-primary, #ffffff);
  box-shadow: var(--elevation-1, 0 1px 2px rgba(0,0,0,.3), 0 1px 3px 1px rgba(0,0,0,.15));
}
.btn--outline {
  background: transparent;
  color: var(--md-on-surface, #201a16);
  border: 1px solid var(--md-outline, #85736b);
  font-size: 13px;
  font-weight: 500;
}
.btn--outline:hover {
  background: var(--md-surface-variant, #f5ded4);
}

/* ---------- 发布说明 & 增量摘要 ---------- */
.rel-notes {
  padding: 0 16px;
}
.rel-notes-loading {
  font-size: 12px;
  color: var(--md-on-surface-variant, #53443c);
  opacity: .7;
}
.rel-notes-body {
  margin: 8px 0 12px;
  padding: 10px 14px;
  background: var(--md-surface-container-low, #fff1eb);
  border: 1px solid var(--md-outline-variant, #d8c2b8);
  border-radius: var(--shape-medium, 12px);
  font-size: 13px;
  line-height: 1.6;
  color: var(--md-on-surface-variant, #53443c);
}
.rel-notes-body ul {
  margin: 4px 0;
  padding-left: 18px;
}
.rel-notes-body li {
  margin: 2px 0;
}
.rel-deltas {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px 16px 2px;
}
.rel-delta-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--shape-small, 8px);
  background: var(--md-primary-container, #ffdcc2);
  color: var(--md-on-primary-container, #2e1500);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .3px;
}
/* 文件行内增量摘要标签 */
.file-summary {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border-radius: var(--shape-extra-small, 4px);
  background: var(--md-primary-container, #ffdcc2);
  color: var(--md-on-primary-container, #2e1500);
  font-size: 11px;
  font-weight: 600;
  vertical-align: middle;
}
/* ---------- 夸克下载按钮（MD3 胶囊，与 mini-btn 风格一致） ---------- */
.quark-btn {
  background: var(--md-secondary-container, #ffdbc9) !important;
  color: var(--md-on-secondary-container, #2b160b) !important;
  border: 1px solid transparent !important;
  font-size: 12px !important;
  padding: 5px 10px !important;
  border-radius: var(--shape-full, 999px) !important;
}
.quark-btn:hover {
  opacity: .85;
}