```css
/* ===== 红人秀场 UI 风格 - 渐变炫彩 · 玻璃拟态 · 沉浸式体验 ===== */
:root {
  --bg-page: #f4f0ff;
  --bg-card: rgba(255, 255, 255, 0.75);
  --text-primary: #1e1b2e;
  --text-secondary: #4b4463;
  --text-heading: #141024;
  --text-link: #6d28d9;
  --text-footer: #ddd6fe;
  --border-light: rgba(109, 40, 217, 0.18);
  --brand-dark: #1e1b4b;
  --brand-accent: #7c3aed;
  --brand-accent-soft: rgba(124, 58, 237, 0.12);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 0.45);
  --shadow-sm: 0 2px 12px rgba(76, 29, 149, 0.08);
  --shadow-md: 0 8px 30px rgba(76, 29, 149, 0.12);
  --shadow-lg: 0 20px 50px rgba(76, 29, 149, 0.18);
  --gradient-hero: linear-gradient(135deg, #ede9fe 0%, #c4b5fd 50%, #a78bfa 100%);
  --gradient-accent: linear-gradient(135deg, #8b5cf6, #d946ef);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.85), rgba(255,255,255,0.5));
  --gradient-footer: linear-gradient(135deg, #1e1b4b, #312e81);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-full: 999px;
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-display: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

[data-theme="dark"] {
  --bg-page: #0f0b1e;
  --bg-card: rgba(30, 27, 75, 0.7);
  --text-primary: #e0e7ff;
  --text-secondary: #a5b4fc;
  --text-heading: #f5f3ff;
  --text-link: #a78bfa;
  --text-footer: #8b5cf6;
  --border-light: rgba(139, 92, 246, 0.25);
  --brand-accent: #a78bfa;
  --brand-accent-soft: rgba(139, 92, 246, 0.15);
  --glass-bg: rgba(30, 27, 75, 0.55);
  --glass-border: rgba(139, 92, 246, 0.2);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
  --gradient-hero: linear-gradient(135deg, #1e1b4b 0%, #312e81 60%, #4c1d95 100%);
  --gradient-accent: linear-gradient(135deg, #8b5cf6, #ec4899);
  --gradient-card: linear-gradient(145deg, rgba(49, 46, 129, 0.7), rgba(30, 27, 75, 0.5));
  --gradient-footer: linear-gradient(135deg, #0f0b1e, #1e1b4b);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-display);
  background-color: var(--bg-page);
  background-image: 
    radial-gradient(at 20% 30%, rgba(139, 92, 246, 0.06) 0px, transparent 50%),
    radial-gradient(at 80% 70%, rgba(217, 70, 239, 0.05) 0px, transparent 50%);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

/* ===== 标题体系 ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  margin-bottom: 0.6rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(139, 92, 246, 0.15);
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 2.5rem 0 1.2rem;
  padding-left: 1rem;
  border-left: 5px solid;
  border-image: var(--gradient-accent) 1;
  border-image-slice: 1;
  position: relative;
}

h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  margin-top: 0.3rem;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  margin: 1.2rem 0 0.8rem;
  position: relative;
}

h4 {
  font-size: 1.1rem;
  margin: 1rem 0 0.5rem;
}

/* ===== 文本与链接 ===== */
p {
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

a:not(.btn):not(.logo):hover {
  color: var(--brand-accent);
  text-decoration: none;
}

a:not(.btn):not(.logo)::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width 0.3s ease;
}

a:not(.btn):not(.logo):hover::after {
  width: 100%;
}

/* ===== 容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航栏 - 毛玻璃效果 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.8rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: var(--glass-bg);
}

.nav-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.7rem;
  font-weight: 900;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo::before {
  content: "🔴";
  font-size: 1.2rem;
  filter: drop-shadow(0 0 8px rgba(239, 68, 68, 0.5));
}

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

.nav-links > a {
  color: var(--text-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.2rem;
  position: relative;
}

.nav-links > a::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s ease;
}

.nav-links > a:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* ===== 按钮 ===== */
.btn-theme {
  background: var(--gradient-accent);
  color: #ffffff;
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-theme:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

.btn {
  background: var(--gradient-accent);
  color: #ffffff;
  padding: 0.7rem 2rem;
  border-radius: var(--radius-full);
  display: inline-block;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.25);
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.35);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--brand-accent);
  color: var(--brand-accent);
  box-shadow: none;
}

.btn-secondary:hover {
  background: var(--brand-accent-soft);
  color: var(--brand-accent);
  box-shadow: none;
}

/* ===== Hero 区域 - 渐变炫彩 ===== */
.hero {
  background: var(--gradient-hero);
  padding: 4rem 0 5rem;
  border-radius: 0 0 3rem 3rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite alternate;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite alternate-reverse;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, -30px) scale(1.1); }
}

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

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--text-heading);
  -webkit-text-fill-color: var(--text-heading);
  margin-bottom: 0.8rem;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--brand-accent);
  padding: 0.4rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

/* ===== 卡片网格 ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.8rem;
}

.card {
  background: var(--gradient-card);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
  border-color: rgba(139, 92, 246, 0.3);
}

.card h3 {
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== 表格样式 ===== */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: transparent;
}

th {
  background: var(--gradient-accent);
  color: #ffffff;
  padding: 1rem 1.2rem;
  font-weight: 700;
  text-align: left;
  font-size: 0.95rem;
}

th:first-child {
  border-top-left-radius: var(--radius-md);
}

th:last-child {
  border-top-right-radius: var(--radius-md);
}

td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: 0.95rem;
}

tr:last-child td:first-child {
  border-bottom-left-radius: var(--radius-md);
}

tr:last-child td:last-child {
  border-bottom-right-radius: var(--radius-md);
}

tbody tr {
  transition: background-color 0.2s ease;
}

tbody tr:hover {
  background-color: var(--brand-accent-soft);
}

/* ===== FAQ 折叠 ===== */
details {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem;
  margin-bottom: 0.8rem;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

details:hover {
  border-color: var(--brand-accent);
  box-shadow: var(--shadow-md);
}

summary {
  font-weight: 700;
  cursor: pointer;
  color: var(--text-heading);
  font-size: 1rem;
  position: relative;
  padding-right: 2rem;
  list-style: none;
  transition: var(--transition);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--brand-accent);
  transition: transform 0.3s ease;
}

details[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

details p {
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--border-light);
  color: var(--text-secondary);
}

/* ===== 文章卡片 ===== */
.article-card {
  display: grid;
}

.article-card .card {
  display: flex;
  flex-direction: column;
}

.article-card .meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--border-light);
  padding-bottom: 0.6rem;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-card .meta::before {
  content: "📅";
  font-size: 0.8rem;
}

.article-card .card p {
  flex-grow: 1;
}

/* ===== HowTo 教程 ===== */
#howto .card {
  background: var(--gradient-card);
  backdrop-filter: blur(15px);
  border: 1px solid var(--glass-border);
}

#howto .card h3 {
  color: var(--brand-accent);
  font-size: 1.1rem;
  margin-top: 1.5rem;
}

#howto .card h3:first-child {
  margin-top: 0;
}

#howto .card p {
  margin-left: 1rem;
}

/* ===== 联系区域 ===== */
#contact .card {
  background: var(--gradient-card);
}

#contact .card p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
}

/* ===== 页脚 ===== */
footer {
  background: var(--gradient-footer);
  color: var(--text-footer);
  margin-top: 4rem;
  padding: 3rem 0 2rem;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
}

footer h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

footer p {
  color: var(--text-footer);
  font-size: 0.9rem;
}

footer a {
  color: #c4b5fd;
  transition: var(--transition);
}

footer a:hover {
  color: #ffffff;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

footer a::after {
  display: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  font-size: 0.85rem;
  text-align: center;
}

.footer-bottom p {
  color: #94a3b8;
  margin-bottom: 0.5rem;
}

/* ===== 返回顶部 ===== */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--gradient-accent);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  width: 50px;
  height: 50px;
  font-size: 1.5rem;
  cursor: pointer;
  display: none;
  z-index: 99;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
  transition: var(--transition);
}

#backToTop:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
}

/* ===== 移动端菜单 ===== */
.menu-button {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-heading);
  cursor: pointer;
  transition: var(--transition);
  padding: 0.25rem;
  border-radius: var(--radius-sm);
}

.menu-button:hover {
  background: var(--brand-accent-soft);
}

/* ===== 滚动动画 ===== */
.card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

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

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 1rem 0;
  }
  
  .nav-links.open {
    display: flex;
    animation: slideDown 0.3s ease;
  }
  
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .menu-button {
    display: block;
  }
  
  .hero {
    padding: 3rem 0 4rem;
    border-radius: 0 0 2rem 2rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  
  .card {
    padding: 1.5rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.2rem;
  }
  
  .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .table-wrap {
    border-radius: var(--radius-sm);
  }
  
  th, td {
    padding: 0.8rem;
    font-size: 0.85rem;
  }
  
  #backToTop {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: center;
  }
  
  footer h4 {
    margin-bottom: 0.5rem;
  }
  
  .footer-bottom {
    text-align: center;
    padding-top: 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  h1 {
    font-size: 1.8rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .logo {
    font-size: 1.4rem;
  }
  
  .badge {
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
  }
  
  .card {
    padding: 1.2rem;
    border-radius: var(--radius-sm);
  }
  
  .btn {
    display: block;
    width: 100%;
    text-align: center;
    margin-bottom: 0.5rem;
  }
  
  .btn-secondary {
    margin-top: 0.5rem;
  }
  
  .hero .btn {
    display: inline-block;
    width: auto;
    margin-right: 0.5rem;
  }
  
  .nav-links > a {
    font-size: 0.9rem;
  }
  
  .btn-theme {
    width: 100%;
    text-align: center;
  }
}

/* ===== 无障碍与打印 ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .navbar, .btn, .btn-theme, #backToTop, footer {
    display: none !important;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
}
```