/* 完美体育官方网站 — 完整内联样式表 */

/* 全局重置与基础 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(135deg, #f4f6fb 0%, #e9edf5 100%);
  color: #1e1e2f;
  line-height: 1.7;
  transition: background 0.4s ease, color 0.4s ease;
  min-height: 100vh;
  overflow-x: hidden;
}

body.dark {
  background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 100%);
  color: #e0e0f0;
}

/* 链接 */
a {
  color: #2b4fbe;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  text-decoration: underline;
  color: #f7c948;
}

body.dark a {
  color: #7a9eff;
}

body.dark a:hover {
  color: #f7c948;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 头部导航 */
.header {
  background: rgba(26, 26, 46, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background 0.4s ease;
}

body.dark .header {
  background: rgba(15, 15, 26, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  background: linear-gradient(135deg, #fff 30%, #f7c948 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.logo span {
  color: #f7c948;
  -webkit-text-fill-color: #f7c948;
}

/* 导航菜单 */
.nav {
  display: flex;
  gap: 8px;
  list-style: none;
  align-items: center;
}

.nav li a {
  color: rgba(255, 255, 255, 0.85);
  padding: 8px 14px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  background: transparent;
}

.nav li a::before {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: #f7c948;
  border-radius: 2px;
  transition: transform 0.3s ease;
}

.nav li a:hover {
  background: rgba(43, 79, 190, 0.25);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
}

.nav li a:hover::before {
  transform: translateX(-50%) scaleX(1);
}

body.dark .nav li a {
  color: rgba(255, 255, 255, 0.75);
}

body.dark .nav li a:hover {
  background: rgba(122, 158, 255, 0.15);
  color: #fff;
}

/* 菜单切换按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  font-size: 1.3rem;
  padding: 4px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #f7c948;
  transform: scale(1.05);
}

/* 暗黑模式切换按钮 */
.dark-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid #f7c948;
  color: #f7c948;
  padding: 6px 16px;
  border-radius: 30px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.dark-toggle:hover {
  background: #f7c948;
  color: #1a1a2e;
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(247, 201, 72, 0.3);
}

body.dark .dark-toggle {
  background: rgba(247, 201, 72, 0.15);
}

/* Hero 区域 */
.hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #2b4fbe 50%, #f7c948 100%);
  color: #fff;
  padding: 100px 20px 80px;
  text-align: center;
  border-radius: 0 0 50px 50px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(26, 26, 46, 0.3);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(247, 201, 72, 0.15) 0%, transparent 60%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0); }
  100% { transform: translate(5%, 5%); }
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 18px;
  font-weight: 900;
  background: linear-gradient(135deg, #fff 30%, #f7c948 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  letter-spacing: 1px;
  animation: fadeInUp 0.8s ease;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 30px;
  opacity: 0.95;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero .btn {
  display: inline-block;
  background: linear-gradient(135deg, #f7c948 0%, #f5b342 100%);
  color: #1a1a2e;
  padding: 16px 40px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin: 8px 12px;
  box-shadow: 0 6px 20px rgba(247, 201, 72, 0.3);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero .btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.hero .btn:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 30px rgba(247, 201, 72, 0.4);
  text-decoration: none;
  color: #1a1a2e;
}

.hero .btn:hover::after {
  left: 100%;
}

.hero .btn:active {
  transform: translateY(-1px) scale(0.98);
}

body.dark .hero {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* 通用区块 */
.section {
  padding: 70px 0;
  position: relative;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 45px;
  text-align: center;
  position: relative;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #1a1a2e 0%, #2b4fbe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

body.dark .section-title {
  background: linear-gradient(135deg, #e0e0f0 0%, #7a9eff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #2b4fbe, #f7c948);
  margin: 14px auto 0;
  border-radius: 4px;
  box-shadow: 0 2px 10px rgba(43, 79, 190, 0.3);
}

/* 卡片样式 */
.card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #2b4fbe, #f7c948);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
  border-color: rgba(43, 79, 190, 0.2);
}

.card:hover::before {
  opacity: 1;
}

body.dark .card {
  background: rgba(26, 26, 46, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

body.dark .card:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
  border-color: rgba(122, 158, 255, 0.2);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  font-weight: 700;
  color: #1a1a2e;
}

body.dark .card h3 {
  color: #e0e0f0;
}

.card p {
  color: #555;
  font-size: 0.98rem;
}

body.dark .card p {
  color: #b0b0cc;
}

/* 网格布局 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

/* Flex 布局 */
.flex {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
}

/* 关于区域 */
.about-content {
  max-width: 850px;
  margin: 0 auto;
  font-size: 1.05rem;
  text-align: center;
}

.about-content p {
  margin-bottom: 16px;
}

/* 统计数字 */
.stat-grid {
  display: flex;
  justify-content: center;
  gap: 50px;
  flex-wrap: wrap;
  margin: 35px 0 10px;
}

.stat-item {
  text-align: center;
  padding: 10px 20px;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, #2b4fbe 0%, #f7c948 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  transition: transform 0.3s ease;
}

.stat-item:hover .stat-number {
  transform: scale(1.1);
}

.stat-label {
  color: #666;
  font-size: 0.95rem;
  margin-top: 6px;
  font-weight: 500;
}

body.dark .stat-label {
  color: #aaa;
}

/* FAQ 手风琴 */
.faq-item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  padding: 18px 0;
  transition: border-color 0.3s ease;
}

body.dark .faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.faq-question {
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.05rem;
  padding: 10px 0;
  color: #1e1e2f;
  transition: all 0.3s ease;
  border-radius: 8px;
  user-select: none;
}

.faq-question:hover {
  color: #2b4fbe;
  padding-left: 8px;
}

body.dark .faq-question {
  color: #e0e0f0;
}

body.dark .faq-question:hover {
  color: #7a9eff;
}

.faq-question span {
  font-size: 1.4rem;
  font-weight: 300;
  transition: transform 0.3s ease;
  color: #2b4fbe;
}

body.dark .faq-question span {
  color: #7a9eff;
}

.faq-question[aria-expanded="true"] span {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 14px 0 10px;
  display: none;
  color: #555;
  line-height: 1.8;
  animation: fadeIn 0.4s ease;
}

body.dark .faq-answer {
  color: #b0b0cc;
}

.faq-answer.open {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 操作步骤 */
.howto-step {
  display: flex;
  gap: 18px;
  margin-bottom: 24px;
  align-items: flex-start;
  padding: 8px 12px;
  border-radius: 12px;
  transition: background 0.3s ease;
}

.howto-step:hover {
  background: rgba(43, 79, 190, 0.04);
}

body.dark .howto-step:hover {
  background: rgba(122, 158, 255, 0.06);
}

.step-num {
  background: linear-gradient(135deg, #2b4fbe 0%, #3a6adf 100%);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(43, 79, 190, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.howto-step:hover .step-num {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(43, 79, 190, 0.4);
}

body.dark .step-num {
  box-shadow: 0 4px 12px rgba(122, 158, 255, 0.2);
}

.howto-step strong {
  font-size: 1.05rem;
  color: #1e1e2f;
}

body.dark .howto-step strong {
  color: #e0e0f0;
}

/* 文章卡片 */
.article-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 14px;
  transition: transform 0.4s ease;
}

.article-card:hover img {
  transform: scale(1.02);
}

.article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  font-weight: 700;
  transition: color 0.3s ease;
}

.article-card:hover h3 {
  color: #2b4fbe;
}

body.dark .article-card:hover h3 {
  color: #7a9eff;
}

.article-card .meta {
  color: #888;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

body.dark .article-card .meta {
  color: #999;
}

.article-card a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease;
}

.article-card a:hover {
  gap: 8px;
  text-decoration: none;
}

/* 联系信息 */
.contact-info {
  text-align: center;
  background: rgba(238, 242, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 45px 30px;
  border-radius: 24px;
  margin-top: 20px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

body.dark .contact-info {
  background: rgba(30, 30, 53, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-info p {
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.contact-info p:first-child {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 18px;
}

/* Banner 轮播 */
.banner-carousel {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  margin-bottom: 45px;
  height: 320px;
  background: #1a1a2e;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

body.dark .banner-carousel {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.banner-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  opacity: 0;
  transition: opacity 0.8s ease, transform 1s ease;
  padding: 30px;
  text-align: center;
  letter-spacing: 1px;
  transform: scale(1.05);
}

.banner-slide.active {
  opacity: 1;
  transform: scale(1);
}

.banner-slide:nth-child(1) {
  background: linear-gradient(135deg, #2b4fbe 0%, #1a1a2e 50%, #16213e 100%);
}

.banner-slide:nth-child(2) {
  background: linear-gradient(135deg, #f7c948 0%, #2b4fbe 50%, #1a1a2e 100%);
}

.banner-slide:nth-child(3) {
  background: linear-gradient(135deg, #1a1a2e 0%, #2b4fbe 50%, #f7c948 100%);
}

/* 搜索框 */
.search-box {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
  animation: fadeIn 0.6s ease;
}

.search-box input {
  width: 100%;
  max-width: 520px;
  padding: 14px 24px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: 50px;
  font-size: 1rem;
  outline: none;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.search-box input:focus {
  border-color: #2b4fbe;
  box-shadow: 0 6px 25px rgba(43, 79, 190, 0.15);
  transform: scale(1.01);
}

body.dark .search-box input {
  background: rgba(26, 26, 46, 0.9);
  border-color: rgba(255, 255, 255, 0.1);
  color: #e0e0f0;
}

body.dark .search-box input:focus {
  border-color: #7a9eff;
  box-shadow: 0 6px 25px rgba(122, 158, 255, 0.15);
}

/* 页脚 */
.footer {
  background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1a 100%);
  color: #ccc;
  padding: 50px 0;
  margin-top: 50px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer a {
  color: #f7c948;
  transition: color 0.3s ease;
}

.footer a:hover {
  color: #fff;
  text-decoration: none;
}

.footer .legal-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  font-size: 0.9rem;
}

.footer .legal-links a {
  position: relative;
  padding: 4px 0;
}

.footer .legal-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: #f7c948;
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.footer .legal-links a:hover::after {
  transform: scaleX(1);
}

.footer p {
  margin-bottom: 6px;
  font-size: 0.95rem;
  opacity: 0.8;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 35px;
  right: 35px;
  background: linear-gradient(135deg, #2b4fbe 0%, #3a6adf 100%);
  color: #fff;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
  box-shadow: 0 6px 25px rgba(43, 79, 190, 0.4);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  z-index: 999;
  transform: translateY(20px);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 10px 35px rgba(43, 79, 190, 0.5);
  background: linear-gradient(135deg, #3a6adf 0%, #2b4fbe 100%);
}

.back-to-top:active {
  transform: translateY(0) scale(0.95);
}

body.dark .back-to-top {
  box-shadow: 0 6px 25px rgba(122, 158, 255, 0.3);
}

body.dark .back-to-top:hover {
  box-shadow: 0 10px 35px rgba(122, 158, 255, 0.4);
}

/* 滚动动画类 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.6rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .banner-carousel {
    height: 260px;
  }
  .banner-slide {
    font-size: 1.6rem;
  }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    flex-direction: column;
    background: rgba(26, 26, 46, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 20px;
    gap: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.3s ease;
  }

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

  .nav.open {
    display: flex;
  }

  .nav li a {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 1rem;
  }

  .nav li a::before {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    padding: 70px 20px 60px;
    border-radius: 0 0 30px 30px;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .hero .btn {
    padding: 14px 30px;
    font-size: 1rem;
    margin: 6px 8px;
  }

  .section {
    padding: 50px 0;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .stat-grid {
    gap: 30px;
  }

  .banner-carousel {
    height: 220px;
    border-radius: 16px;
  }

  .banner-slide {
    font-size: 1.3rem;
    padding: 20px;
  }

  .card {
    padding: 22px;
    border-radius: 16px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .back-to-top {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
    bottom: 20px;
    right: 20px;
  }

  .footer {
    padding: 35px 0;
  }

  .footer .legal-links {
    gap: 16px;
    font-size: 0.85rem;
  }

  .search-box input {
    max-width: 100%;
    padding: 12px 18px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.6rem;
  }

  .hero p {
    font-size: 0.9rem;
  }

  .hero .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .banner-carousel {
    height: 180px;
  }

  .banner-slide {
    font-size: 1.1rem;
  }

  .card h3 {
    font-size: 1.1rem;
  }

  .logo {
    font-size: 1.3rem;
  }

  .dark-toggle {
    padding: 4px 12px;
    font-size: 0.85rem;
  }
}

/* 暗黑模式下的额外调整 */
body.dark .faq-question:hover {
  background: rgba(122, 158, 255, 0.05);
}

body.dark .howto-step:hover {
  background: rgba(122, 158, 255, 0.04);
}

/* 打印样式 */
@media print {
  .header, .footer, .back-to-top, .menu-toggle, .dark-toggle, .banner-carousel, .search-box {
    display: none;
  }
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    background: #fff;
  }
  body {
    background: #fff;
    color: #000;
  }
}

/* 无障碍焦点样式 */
a:focus-visible,
button:focus-visible,
.faq-question:focus-visible {
  outline: 3px solid #f7c948;
  outline-offset: 3px;
  border-radius: 4px;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #2b4fbe 0%, #7a9eff 100%);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #3a6adf 0%, #8ab0ff 100%);
}

body.dark ::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

body.dark ::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #7a9eff 0%, #2b4fbe 100%);
}

/* 选中文字样式 */
::selection {
  background: #2b4fbe;
  color: #fff;
}

body.dark ::selection {
  background: #7a9eff;
  color: #1a1a2e;
}