:root {
  --primary-color: #0984e3;
  --primary-light: #74b9ff;
  --bg-color: #f8f9fa;
  --text-color: #2d3436;
  --text-light: #636e72;
  --card-bg: #ffffff;
  --nav-height: 80px;
  --gradient-text: linear-gradient(135deg, #0984e3 0%, #00cec9 100%);
  --gradient-bg: linear-gradient(135deg, rgba(9, 132, 227, 0.1) 0%, rgba(0, 206, 201, 0.1) 100%);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

[data-theme="dark"] {
  --primary-color: #74b9ff;
  --primary-light: #0984e3;
  --bg-color: #1e272e;
  --text-color: #dfe6e9;
  --text-light: #b2bec3;
  --card-bg: #2d3436;
  --gradient-text: linear-gradient(135deg, #74b9ff 0%, #81ecec 100%);
  --gradient-bg: linear-gradient(135deg, rgba(116, 185, 255, 0.1) 0%, rgba(129, 236, 236, 0.1) 100%);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 20px);
}

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

/* 进度条 */
.progress-bar {
  height: 3px;
  background: var(--primary-color);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  transition: width 0.3s ease;
  width: 0;
  opacity: 0;
}

/* 导航栏 */
.navbar {
  background: rgba(var(--card-bg), 0.95);
  padding: 1rem 2rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  display: flex;
  justify-content: center;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1200px;
}

.logo {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 700;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo i {
  font-size: 1.2em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#digital-clock {
  color: var(--text-color);
  font-family: var(--font-mono);
  font-size: 1rem;
  transition: var(--transition);
  font-weight: bold;
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
}

.theme-toggle:hover {
  background: rgba(var(--primary-color), 0.1);
}

/* 英雄区域 */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--nav-height) + 40px);
  background: var(--gradient-bg);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 50%, rgba(var(--primary-color), 0.1) 0%, transparent 50%);
  z-index: 0;
}

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: 1;
  padding: 2rem 0;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin-bottom: 1.5rem;
  animation: slideUp 1s ease;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 2rem;
  color: var(--text-light);
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hitokoto {
  font-size: 1.2rem;
  opacity: 0.9;
  margin-top: 1.5rem;
  font-style: italic;
  transition: var(--transition);
  color: var(--text-light);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: var(--primary-color);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: none;
  cursor: pointer;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  gap: 0.5rem;
}

.btn span:not(.download-count) {
  background: linear-gradient(90deg, white 0%, #dfe6e9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: scale(0.95);
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.3) 100%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn:hover::after {
  transform: translateX(100%);
}

/* 特性区域 */
.features {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-header p {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  will-change: transform, opacity;
  backface-visibility: hidden;
  opacity: 0;
  transform: translateY(50px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.card.reveal {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-bg);
  z-index: 0;
  opacity: 0;
  transition: var(--transition);
}

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

.card i {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}



/* 版本历史区域 */
.versions {
  padding: 5rem 2rem;
  background: var(--gradient-bg);
  position: relative;
  overflow: hidden;
}

.versions::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 30%, rgba(var(--primary-color), 0.1) 0%, transparent 50%);
  z-index: 0;
}

.version-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.version-timeline {
  position: relative;
  margin-top: 3rem;
  padding-left: 2rem;
}

.version-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 2px;
  background: var(--primary-color);
  opacity: 0.3;
}

.version-item {
  position: relative;
  padding: 2rem;
  margin-bottom: 2rem;
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.version-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.version-item::before {
  content: '';
  position: absolute;
  top: 2.5rem;
  left: -1.5rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--primary-color);
  border: 3px solid var(--card-bg);
}

.version-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.version-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-color);
}

.version-date {
  color: var(--text-light);
  font-size: 0.9rem;
}

.version-content {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.version-features {
  margin-top: 1rem;
}

.version-feature {
  display: flex;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.version-feature i {
  color: var(--primary-color);
  margin-right: 0.5rem;
  margin-top: 0.2rem;
}

/* 页脚 */
footer {
  background: var(--card-bg);
  color: var(--text-color);
  text-align: center;
  padding: 3rem 2rem;
  margin-top: auto;
  box-shadow: 0 -5px 10px rgba(0, 0, 0, 0.05);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  text-align: left;
}

.footer-column h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(var(--primary-color), 0.1);
  color: var(--primary-color);
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

.copyright {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(var(--primary-color), 0.1);
  color: var(--text-light);
  font-size: 0.9rem;
}

/* 粒子画布 */
#particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* 动画 */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(var(--primary-color), 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(var(--primary-color), 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(var(--primary-color), 0);
  }
}

/* 404 页面样式 */
.not-found {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--nav-height) + 40px);
  background: var(--gradient-bg);
  will-change: transform, opacity;
}

.not-found::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 50%, rgba(var(--primary-color), 0.1) 0%, transparent 50%);
  z-index: 0;
  will-change: transform;
}

.not-found-content {
  max-width: 800px;
  position: relative;
  z-index: 1;
  padding: 2rem 0;
  will-change: transform, opacity;
}

.error-code {
  font-size: clamp(4rem, 15vw, 8rem);
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  will-change: transform;
}

.error-code span {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  will-change: transform;
}

.error-code i {
  color: var(--primary-color);
  will-change: transform;
}

.not-found h1 {
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  margin-bottom: 1rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  will-change: transform;
}

.not-found p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-light);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 2rem;
  will-change: transform;
}

.not-found-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  will-change: transform;
}

.btn-secondary {
  background: rgba(var(--primary-color), 0.1);
  color: var(--primary-color);
  will-change: transform, background, color;
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
}

/* 下载帮助页面专用样式 */
.download-help {
  padding-top: calc(var(--nav-height) + 20px);
  background-color: var(--bg-color);
  color: var(--text-color);
}

/* 下载介绍部分 */
.download-intro {
  padding: 4rem 2rem;
  text-align: center;
  background: var(--gradient-bg);
  position: relative;
  overflow: hidden;
}

.download-intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 50%, rgba(var(--primary-color), 0.1) 0%, transparent 50%);
  z-index: 0;
}

.download-intro .container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}

.download-intro h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 1rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.download-intro .subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.download-options {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.download-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  width: 280px;
  text-align: center;
}

.download-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.download-card i {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.download-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.download-card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

/* 指南部分 */
.guide-section {
  padding: 4rem 0;
  position: relative;
}

.guide-section:nth-child(even) {
  background: var(--gradient-bg);
}

.guide-section .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.guide-section h2 {
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.guide-section h2 i {
  color: var(--primary-color);
}

.guide-step {
  display: flex;
  gap: 3rem;
  margin-bottom: 4rem;
  align-items: center;
}

.guide-step.reverse {
  flex-direction: row-reverse;
}

.guide-step .step-content {
  flex: 1;
  min-width: 0;
}

.guide-step .step-image {
  flex: 1;
  min-width: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--card-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 1rem;
}

.guide-step .step-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(var(--primary-color), 0.1) 0%, rgba(var(--primary-color), 0.05) 100%);
}

.guide-step .step-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.guide-step h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.guide-step p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.guide-step ul, .guide-step ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.guide-step li {
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.guide-step .note {
  font-size: 0.9rem;
  color: var(--text-light);
  font-style: italic;
}

/* 图片样式 */
.step-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}

.step-image:hover img {
  transform: scale(1.02);
}

.image-caption {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 0.5rem;
  width: 100%;
}

/* 代码块样式 */
.code-block {
  position: relative;
  margin: 1.5rem 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.code-block pre {
  margin: 0;
  padding: 1.5rem;
  background: var(--card-bg);
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-color);
  display: block;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(var(--primary-color), 0.1);
  color: var(--primary-color);
  border: none;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: var(--transition);
}

.copy-btn:hover {
  background: rgba(var(--primary-color), 0.2);
}

/* 标签页样式 */
.tabs {
 

margin: 1.5rem 0;
}

.tab-buttons {
display: flex;
border-bottom: 1px solid rgba(var(--primary-color), 0.1);
margin-bottom: -1px;
}

.tab-btn {
padding: 0.5rem 1rem;
background: none;
border: none;
border-bottom: 2px solid transparent;
color: var(--text-light);
cursor: pointer;
font-weight: 500;
transition: var(--transition);
}

.tab-btn.active {
color: var(--primary-color);
border-bottom-color: var(--primary-color);
}

.tab-content {
display: none;
}

.tab-content.active {
display: block;
}

/* 常见问题部分 */
.faq-section {
padding: 4rem 0;
background: var(--gradient-bg);
}

.faq-section .container {
max-width: 800px;
margin: 0 auto;
padding: 0 2rem;
}

.faq-item {
margin-bottom: 1rem;
border-radius: var(--radius-sm);
overflow: hidden;
box-shadow: var(--shadow-sm);
background: var(--card-bg);
transition: var(--transition);
}

.faq-item.active {
box-shadow: var(--shadow-md);
}

.faq-question {
padding: 1.2rem 1.5rem;
display: flex;
justify-content: space-between;
align-items: center;
cursor: pointer;
}

.faq-question h3 {
font-size: 1.1rem;
font-weight: 600;
margin: 0;
}

.faq-question i {
transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
transform: rotate(180deg);
}

.faq-answer {
max-height: 0;
overflow: hidden;
transition: max-height 0.3s ease;
padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
max-height: 1000px;
padding: 0 1.5rem 1.5rem;
}

.faq-answer p, .faq-answer ol, .faq-answer ul {
margin-bottom: 1rem;
}

.faq-answer h4 {
font-size: 1rem;
margin: 1.5rem 0 0.5rem;
color: var(--primary-light);
}

/* 支持部分 */
.support-section {
padding: 4rem 0;
text-align: center;
}

.support-section .container {
max-width: 1200px;
margin: 0 auto;
padding: 0 2rem;
}

.support-section h2 {
font-size: clamp(1.8rem, 4vw, 2.3rem);
margin-bottom: 1rem;
display: flex;
align-items: center;
justify-content: center;
gap: 1rem;
}

.support-section h2 i {
color: var(--primary-color);
}

.support-section p {
max-width: 600px;
margin: 0 auto 3rem;
color: var(--text-light);
}

.support-options {
display: flex;
justify-content: center;
gap: 2rem;
flex-wrap: wrap;
}

.support-card {
background: var(--card-bg);
padding: 2rem;
border-radius: var(--radius-md);
box-shadow: var(--shadow-sm);
transition: var(--transition);
width: 280px;
text-align: center;
}

.support-card:hover {
transform: translateY(-5px);
box-shadow: var(--shadow-lg);
}

.support-card i {
font-size: 2.5rem;
color: var(--primary-color);
margin-bottom: 1rem;
}

.support-card h3 {
font-size: 1.3rem;
margin-bottom: 0.5rem;
}

.support-card p {
color: var(--text-light);
margin-bottom: 1.5rem;
font-size: 0.9rem;
}

/* 代码高亮主题 */
.hljs {
background: transparent !important;
}

/* 暗色主题调整 */
[data-theme="dark"] .code-block pre {
background: rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .faq-item,
[data-theme="dark"] .support-card,
[data-theme="dark"] .download-card {
background: rgba(0, 0, 0, 0.2);
}

/* 响应式设计 */
@media (max-width: 992px) {
.guide-step {
flex-direction: column;
gap: 2rem;
}

.guide-step.reverse {
flex-direction: column;
}

.guide-step .step-content,
.guide-step .step-image {
width: 100%;
}

.guide-step .step-image {
height: auto;
max-height: 300px;
}
}

@media (max-width: 768px) {
.download-intro,
.guide-section,
.faq-section,
.support-section {
padding: 3rem 1rem;
}

.download-options,
.support-options {
gap: 1.5rem;
}

.download-card,
.support-card {
width: 100%;
max-width: 350px;
}

.faq-section .container {
padding: 0 1rem;
}

.faq-question {
padding: 1rem;
}

.faq-question h3 {
font-size: 1rem;
}

.faq-answer {
padding: 0 1rem;
}

.faq-item.active .faq-answer {
padding: 0 1rem 1rem;
}
}

@media (max-width: 576px) {
.download-intro h1 {
font-size: 1.8rem;
}

.guide-section h2,
.support-section h2 {
font-size: 1.5rem;
}

.guide-step h3 {
font-size: 1.3rem;
}

.tab-buttons {
flex-wrap: wrap;
}

.tab-btn {
flex: 1;
min-width: 100px;
text-align: center;
padding: 0.5rem;
font-size: 0.9rem;
}

.code-block pre {
padding: 1rem;
}

.code-block code {
font-size: 0.8rem;
}

.copy-btn {
font-size: 0.7rem;
padding: 0.2rem 0.5rem;
}
}

/* 导航栏响应式调整 */
@media (max-width: 768px) {
.nav-menu {
display: none;
}

.nav-actions {
gap: 1rem;
}

.btn span:not(.download-count) {
margin: 0 5px;
}

.card {
padding: 1.5rem;
}

.hero {
padding-top: calc(var(--nav-height) + 20px);
}

.navbar {
padding: 0.8rem 1rem;
}

#digital-clock {
font-size: 0.9rem;
margin-right: 10px;
}

.music-player {
bottom: 1rem;
right: 1rem;
}

.music-toggle {
width: 3rem;
height: 3rem;
}
}

@media (max-width: 576px) {
.hero h1 {
font-size: 2rem;
}

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

.hitokoto {
font-size: 1rem;
}

.btn {
padding: 0.8rem 1.5rem;
font-size: 0.9rem;
}

.version-item {
padding: 1.5rem;
}

.version-header {
flex-direction: column;
align-items: flex-start;
gap: 0.5rem;
}
}

@media (orientation: landscape) and (max-height: 500px) {
.hero {
height: auto;
min-height: 100vh;
padding: 80px 1rem 2rem;
}

.btn {
padding: 0.8rem 1.2rem;
font-size: 0.9rem;
max-width: 90%;
margin: 0 auto;
}

.hitokoto {
display: none;
}

.hero h1 {
font-size: 1.8rem;
margin-bottom: 1rem;
}

.cards {
gap: 1rem;
}
}
/* 加载界面样式 */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-content {
    text-align: center;
    max-width: 300px;
    width: 100%;
}

.loading-logo {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.loading-progress {
    width: 100%;
    height: 4px;
    background-color: rgba(var(--primary-color), 0.2);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.loading-progress .progress-bar {
    height: 100%;
    width: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.loading-text {
    color: var(--text-light);
    font-size: 0.9rem;
}