/* ===================== 简银科技 v2 - 现代化样式 ===================== */
/* CSS变量 - 亮色主题(默认) */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f7fa;
  --bg-tertiary: #eef1f6;
  --bg-navbar: #004cff;
  --bg-footer: #004cff;
  --bg-card: #ffffff;
  --bg-overlay: rgba(0, 0, 0, 0.08);

  /* 磨砂玻璃效果变量 */
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-bg-strong: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
  --glass-blur: blur(16px);
  --glass-saturate: saturate(180%);
  --navbar-glass-bg: rgba(0, 76, 255, 0.75);
  --footer-glass-bg: rgba(0, 76, 255, 0.82);
  --mobile-menu-bg: rgba(0, 76, 255, 0.85);

  --text-primary: #1a1a2e;
  --text-secondary: #4a4a68;
  --text-tertiary: #8a8aa0;
  --text-on-primary: #ffffff;
  --text-footer: #ffffff;
  --text-muted: #6c757d;

  --accent: #004cff;
  --accent-light: #3d7cff;
  --accent-hover: #003acc;
  --border-color: #e0e3eb;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --max-width: 1200px;
  --navbar-height: 60px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --font-sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* 暗色主题 */
[data-theme="dark"] {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --bg-navbar: #002a99;
  --bg-footer: #001f7a;
  --bg-card: #1e2746;
  --bg-overlay: rgba(255, 255, 255, 0.08);

  /* 磨砂玻璃效果变量 - 暗色 */
  --glass-bg: rgba(30, 39, 70, 0.6);
  --glass-bg-strong: rgba(30, 39, 70, 0.72);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  --glass-blur: blur(16px);
  --glass-saturate: saturate(180%);
  --navbar-glass-bg: rgba(0, 42, 153, 0.72);
  --footer-glass-bg: rgba(0, 31, 122, 0.8);
  --mobile-menu-bg: rgba(0, 42, 153, 0.88);

  --text-primary: #f0f0f5;
  --text-secondary: #c0c0d0;
  --text-tertiary: #8a8aa0;
  --text-on-primary: #ffffff;
  --text-footer: #e0e0f0;
  --text-muted: #9a9ab0;

  --accent: #4d8aff;
  --accent-light: #6da0ff;
  --accent-hover: #3d7cff;
  --border-color: #2a2f4a;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
}

/* 灰色纪念日滤镜 */
html.grayscale {
  filter: grayscale(1);
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
}

ul { list-style: none; }

/* ===================== 布局容器 ===================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 60px 20px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  text-align: center;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.text-center { text-align: center; }

/* ===================== 导航栏 ===================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--navbar-glass-bg);
  backdrop-filter: var(--glass-blur) var(--glass-saturate);
  -webkit-backdrop-filter: var(--glass-blur) var(--glass-saturate);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: background-color var(--transition);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff !important;
  font-size: 1.25rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.navbar-brand img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.navbar-brand:hover {
  opacity: 0.85;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.navbar-links a {
  color: rgba(255, 255, 255, 0.9) !important;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.navbar-links a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff !important;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* 主题切换按钮 */
.theme-toggle {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: rotate(15deg);
}

.theme-toggle:active {
  transform: scale(0.92);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* 移动端汉堡菜单按钮 */
.navbar-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  transition: background var(--transition);
}

.navbar-toggle:hover {
  background: rgba(255, 255, 255, 0.28);
}

.navbar-toggle .icon-close { display: none; }
.navbar-toggle.active .icon-menu { display: none; }
.navbar-toggle.active .icon-close { display: block; }

/* ===================== 横幅 ===================== */
.banner {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.banner img {
  width: 100%;
  height: auto;
  display: block;
}

.banner-mobile {
  display: none;
}

/* ===================== 时间线 ===================== */
.timeline {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px;
}

.timeline-list {
  position: relative;
  padding-left: 2.5em;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 1.1em;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--bg-tertiary);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 12px 16px;
  margin-bottom: 8px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.timeline-item:hover {
  transform: translateX(4px);
  box-shadow: var(--glass-shadow);
}

.timeline-bullet {
  position: absolute;
  left: -2.5em;
  top: 18px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--accent);
  z-index: 1;
}

.timeline-bullet.pink   { border-color: #F93B69; background-color: #ff6b9d; }
.timeline-bullet.orange { border-color: #EB8B6E; background-color: #ff8c69; }
.timeline-bullet.blue   { border-color: cadetblue; background-color: #7fffd4; }
.timeline-bullet.green  { border-color: #B0E8E2; background-color: #20c997; }

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

.timeline-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.timeline-content h4 {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
}

/* ===================== 介绍区域 ===================== */
.intro {
  max-width: 800px;
  margin: 0 auto;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.intro p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===================== 卡片网格 ===================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  padding: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.card-item {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card-item:hover {
  transform: translateY(-4px);
  background: var(--glass-bg-strong);
  box-shadow: var(--shadow-md);
}

.card-item a {
  display: block;
}

.card-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.card-label {
  padding: 10px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 设备展示网格 */
.device-section {
  padding: 40px 20px;
}

.device-section h2 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 20px;
  text-align: center;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.device-item {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.device-item:hover {
  transform: translateY(-4px);
  background: var(--glass-bg-strong);
  box-shadow: var(--shadow-md);
}

.device-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

/* 大图横幅 */
.device-banner {
  max-width: var(--max-width);
  margin: 20px auto;
  padding: 0 20px;
}

.device-banner img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
}

/* ===================== 按钮 ===================== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  background: var(--accent);
  color: #fff;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn-light {
  background: #fff;
  color: #000;
}

.btn-light:hover {
  background: #f0f0f0;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

.btn span::after {
  content: ' »';
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover span::after {
  opacity: 1;
}

/* =================---- 下载页面 ===================== */
.download-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

.download-block {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-bottom: 24px;
  box-shadow: var(--glass-shadow);
  text-align: center;
}

.download-block h2 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.download-block p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

/* ===================== 视频容器 ===================== */
.video-container {
  max-width: 100%;
  margin: 20px auto;
  padding: 0 20px;
  position: relative;
}

.video-container iframe {
  width: 100%;
  max-width: 1120px;
  aspect-ratio: 2 / 1;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  display: block;
  margin: 0 auto;
}

/* ===================== 返回按钮 ===================== */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  margin: 16px 20px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color var(--transition), transform var(--transition), background var(--transition);
}

.back-btn:hover {
  color: var(--accent);
  background: var(--glass-bg-strong);
  transform: translateX(-4px);
}

/* ===================== 文档页 ===================== */
.docs-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

.docs-block {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-bottom: 24px;
  box-shadow: var(--glass-shadow);
}

.docs-block h2 {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 10px;
}

.docs-block p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ===================== 加入我们 ===================== */
.join-section {
  padding: 40px 20px;
  text-align: center;
}

.join-role {
  margin-bottom: 40px;
}

.join-role h2 {
  color: var(--text-primary);
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.join-role img {
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.join-role img:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}

/* ===================== 打赏页 ===================== */
.donate-section {
  text-align: center;
  padding: 60px 20px;
}

.donate-section > * {
  position: relative;
}

.donate-qr {
  max-width: 300px;
  width: 100%;
  margin: 0 auto;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
}

.donate-qr img {
  width: 100%;
  border-radius: var(--radius-md);
}

.donate-section h1 {
  color: var(--text-primary);
  margin-bottom: 12px;
}

.donate-section p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

/* ===================== 下载站 ===================== */
.share-list {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 20px;
}

.share-item {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.share-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.share-item h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
}

/* ===================== 更新页 ===================== */
.update-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  padding: 40px 20px;
}

.update-page img {
  max-width: 180px;
  margin: 0 auto 20px;
}

.update-page h1 {
  color: #fff;
  font-size: 1.3rem;
}

/* ===================== 页脚 ===================== */
.footer {
  background: var(--footer-glass-bg);
  backdrop-filter: var(--glass-blur) var(--glass-saturate);
  -webkit-backdrop-filter: var(--glass-blur) var(--glass-saturate);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-footer);
  padding: 40px 20px 20px;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 30px;
  align-items: start;
}

.footer-col h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.9);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.9) !important;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff !important;
  text-decoration: underline;
}

.footer-slogan img {
  max-width: 140px;
  opacity: 0.9;
}

.footer-copyright {
  text-align: center;
  padding-top: 20px;
  margin-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ===================== 响应式 - 平板 ===================== */
@media (max-width: 900px) {
  .navbar-links {
    display: none;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--mobile-menu-bg);
    backdrop-filter: var(--glass-blur) var(--glass-saturate);
    -webkit-backdrop-filter: var(--glass-blur) var(--glass-saturate);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 0;
    overflow-y: auto;
    z-index: 999;
  }

  .navbar-links.open {
    display: flex;
  }

  .navbar-links a {
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-slogan {
    grid-column: 1 / -1;
    text-align: center;
  }

  .footer-slogan img {
    margin: 0 auto;
  }
}

/* ===================== 响应式 - 手机 ===================== */
@media (max-width: 600px) {
  :root {
    --navbar-height: 54px;
  }

  .navbar-brand {
    font-size: 1.05rem;
  }

  .navbar-brand img {
    width: 30px;
    height: 30px;
  }

  .section {
    padding: 40px 16px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .card-grid,
  .device-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
    padding: 16px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .footer-col p,
  .footer-col a {
    text-align: center;
  }

  .video-container iframe {
    aspect-ratio: 16 / 9;
  }

  .download-block,
  .docs-block {
    padding: 20px;
  }

  .intro {
    padding: 16px;
  }

  .intro p {
    font-size: 1rem;
  }

  .timeline {
    padding: 10px;
  }

  .join-role img {
    border-radius: var(--radius-sm);
  }
}

/* ===================== backdrop-filter 降级 ===================== */
@supports not (backdrop-filter: blur(1px)) {
  .navbar,
  .footer {
    background: var(--bg-navbar);
  }
  .timeline-item,
  .card-item,
  .device-item,
  .download-block,
  .docs-block,
  .share-item,
  .intro,
  .back-btn,
  .donate-qr {
    background: var(--bg-card);
  }
  .navbar-links {
    background: var(--bg-navbar);
  }
}

/* ===================== 动画 ===================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

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

/* 主题切换过渡 */
*, *::before, *::after {
  transition-property: background-color, border-color, color, box-shadow, background;
  transition-duration: var(--transition);
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================== 工具类 ===================== */
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 8px !important; }
.mt-2 { margin-top: 16px !important; }
.mt-3 { margin-top: 24px !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 8px !important; }
.mb-2 { margin-bottom: 16px !important; }
.mb-3 { margin-bottom: 24px !important; }
.text-muted { color: var(--text-muted) !important; }
.d-none { display: none !important; }
.d-block { display: block !important; }