```css
/* ===== 基础重置与变量 ===== */
:root {
  --bg-main: #ffffff;
  --bg-soft: #f5f7fa;
  --bg-card: rgba(255, 255, 255, 0.85);
  --text-primary: #1f2937;
  --text-secondary: #334155;
  --text-heading: #0f172a;
  --text-link: #1e4a7a;
  --border-light: #d1d9e6;
  --nav-bg: rgba(255, 255, 255, 0.9);
  --footer-bg: #1e2b3a;
  --footer-text: #e2e8f0;
  --btn-primary-bg: #1a3a5f;
  --btn-primary-text: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 0.4);
  --gradient-primary: linear-gradient(135deg, #1e3a5f, #2b5a7a);
  --gradient-accent: linear-gradient(135deg, #e8b4b8, #f4c2c2);
  --gradient-soft: linear-gradient(135deg, #f0f4f8, #e2e8f0);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.6s ease;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

[data-theme="dark"] {
  --bg-main: #121a24;
  --bg-soft: #1a2532;
  --bg-card: rgba(30, 42, 56, 0.85);
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-heading: #f8fafc;
  --text-link: #7cb1e8;
  --border-light: #2d3f54;
  --nav-bg: rgba(26, 37, 50, 0.9);
  --footer-bg: #0d141e;
  --footer-text: #cbd5e1;
  --btn-primary-bg: #3b6ea5;
  --btn-primary-text: #ffffff;
  --glass-bg: rgba(30, 42, 56, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, #1a2a3a, #2b4a6a);
  --gradient-accent: linear-gradient(135deg, #3a2a3a, #4a3a4a);
  --gradient-soft: linear-gradient(135deg, #1a2532, #2d3f54);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background-color var(--transition-medium), color var(--transition-medium);
  overflow-x: hidden;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-soft);
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-link);
}

/* ===== 排版 ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.5em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
}

p {
  color: var(--text-primary);
  margin-bottom: 1em;
}

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

a:hover {
  color: var(--text-heading);
  text-decoration: underline;
}

ul, ol {
  padding-left: 1.5em;
  margin-bottom: 1em;
}

li {
  color: var(--text-primary);
  margin-bottom: 0.5em;
}

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

/* ===== 容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 48px 0 24px;
  text-align: center;
  position: relative;
  padding-bottom: 16px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.text-secondary {
  color: var(--text-secondary) !important;
}

.bg-soft {
  background-color: var(--bg-soft) !important;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition-medium);
  font-size: 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.btn:hover {
  background: #2a4f7a;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:hover::before {
  left: 100%;
}

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

.btn-outline {
  background: transparent;
  color: var(--text-link);
  border: 2px solid var(--text-link);
  box-shadow: none;
}

.btn-outline:hover {
  background: rgba(30, 74, 122, 0.1);
  color: var(--text-link);
  border-color: var(--text-link);
}

.btn-light {
  background: #ffffff;
  color: #1a3a5f;
}

.btn-light:hover {
  background: #f0f4f8;
  color: #1a3a5f;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-medium);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  min-height: 64px;
}

.logo a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: 1px;
  text-decoration: none;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo span {
  color: var(--text-link);
  -webkit-text-fill-color: var(--text-link);
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-primary);
  font-weight: 500;
  padding: 6px 0;
  position: relative;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.nav-links a:hover {
  color: var(--text-link);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-heading);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--bg-soft);
}

/* ===== Banner ===== */
.banner {
  background: var(--gradient-primary);
  color: #ffffff;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  animation: gradientShift 10s ease infinite;
  background-size: 200% 200%;
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  animation: float 8s ease-in-out infinite;
}

.banner::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(5deg);
  }
}

.banner-content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.banner h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  color: #ffffff;
  margin-bottom: 16px;
  animation: fadeInUp 1s ease;
}

.banner p {
  font-size: 1.2rem;
  color: #e2e8f0;
  margin-bottom: 24px;
  animation: fadeInUp 1s ease 0.2s both;
}

.banner .btn {
  animation: fadeInUp 1s ease 0.4s both;
}

.banner .btn-outline {
  background: transparent;
  color: #ffffff;
  border-color: #ffffff;
}

.banner .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== 卡片 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 40px 0;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-medium);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--text-link);
}

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

.card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

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

.card .tag {
  display: inline-block;
  background: var(--gradient-soft);
  padding: 4px 12px;
  border-radius: 30px;
  font-size: 0.8rem;
  margin-top: 12px;
}

/* ===== 表格 ===== */
.table-wrap {
  overflow-x: auto;
  margin: 24px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

th, td {
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  text-align: left;
}

th {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--text-heading);
}

td {
  color: var(--text-primary);
}

tr:hover {
  background: var(--bg-soft);
}

/* ===== FAQ ===== */
.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 16px 0;
  transition: all var(--transition-medium);
}

.faq-item:hover {
  padding-left: 12px;
}

.faq-question {
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-heading);
  font-size: 1.05rem;
  user-select: none;
}

.faq-question span {
  font-size: 1.5rem;
  color: var(--text-link);
  transition: transform var(--transition-medium);
  display: inline-block;
}

.faq-question:hover span {
  transform: rotate(90deg);
}

.faq-answer {
  margin-top: 12px;
  color: var(--text-primary);
  padding-left: 16px;
  border-left: 3px solid var(--text-link);
  animation: fadeIn 0.3s ease;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 40px 0 20px;
  margin-top: 60px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.site-footer h4 {
  color: #ffffff;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

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

.site-footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.copyright {
  border-top: 1px solid #334155;
  margin-top: 32px;
  padding-top: 16px;
  font-size: 0.9rem;
  color: #cbd5e1;
  text-align: center;
}

/* ===== 返回顶部 ===== */
#backTop {
  position: fixed;
  bottom: 40px;
  right: 30px;
  background: var(--btn-primary-bg);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.5rem;
  cursor: pointer;
  display: none;
  z-index: 999;
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-md);
}

#backTop:hover {
  background: #2a4f7a;
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

#backTop.show {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* ===== 标签 ===== */
.tag {
  background: var(--bg-soft);
  color: var(--text-primary);
  padding: 4px 12px;
  border-radius: 30px;
  font-size: 0.85rem;
  display: inline-block;
  margin: 4px;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--text-link);
  color: #ffffff;
}

.meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== 文章样式 ===== */
article {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition-medium);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--text-link);
}

article h3 a {
  color: var(--text-heading);
  text-decoration: none;
  transition: color var(--transition-fast);
}

article h3 a:hover {
  color: var(--text-link);
}

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

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

/* ===== 毛玻璃效果 ===== */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
}

/* ===== 响应式布局 ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }
  
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
    flex-direction: column;
    gap: 12px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    padding: 20px;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
  }
  
  .nav-links.active {
    display: flex;
    animation: slideDown 0.3s ease;
  }
  
  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .menu-toggle {
    display: block;
  }
  
  .banner {
    padding: 60px 0;
  }
  
  .banner h1 {
    font-size: 2rem;
  }
  
  .banner p {
    font-size: 1rem;
  }
  
  .section-title {
    margin: 32px 0 16px;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .banner {
    padding: 40px 0;
  }
  
  .banner h1 {
    font-size: 1.8rem;
  }
  
  .banner p {
    font-size: 0.95rem;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
  
  .nav-bar {
    padding: 8px 0;
  }
  
  .logo a {
    font-size: 1.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  #backTop {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .site-header,
  .banner,
  #backTop,
  .site-footer {
    display: none !important;
  }
  
  body {
    background: #ffffff;
    color: #000000;
  }
  
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== 工具类 ===== */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2.5rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 2.5rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 2.5rem; }

/* ===== 联系区块 ===== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  background: var(--bg-card);
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.contact-info div {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  transition: all var(--transition-medium);
}

.contact-info div:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.contact-info strong {
  display: block;
  color: var(--text-heading);
  margin-bottom: 8px;
}

/* ===== 链接区块 ===== */
.link-section {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 32px 0;
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.link-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  padding: 4px 8px;
  border-radius: 4px;
}

.link-section a:hover {
  color: var(--text-link);
  background: var(--bg-soft);
}

/* ===== 步骤指南 ===== */
.howto-box {
  background: var(--bg-card);
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.howto-box h3 {
  color: var(--text-link);
  margin-top: 24px;
}

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

.howto-box ol {
  counter-reset: step;
}

.howto-box ol li {
  counter-increment: step;
  position: relative;
  padding-left: 40px;
  margin-bottom: 12px;
}

.howto-box ol li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  background: var(--gradient-primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

/* ===== 动画增强 ===== */
.hover-lift {
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.hover-grow {
  transition: transform var(--transition-medium);
}

.hover-grow:hover {
  transform: scale(1.02);
}

.hover-glow {
  transition: box-shadow var(--transition-medium);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(30, 74, 122, 0.3);
}

/* ===== 渐变文本 ===== */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 分隔线 ===== */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-light), transparent);
  margin: 32px 0;
}

/* ===== 状态样式 ===== */
.success {
  color: #10b981;
}

.warning {
  color: #f59e0b;
}

.error {
  color: #ef4444;
}

.info {
  color: #3b82f6;
}

/* ===== 徽章 ===== */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--gradient-primary);
  color: #ffffff;
  transition: all var(--transition-fast);
}

.badge:hover {
  transform: scale(1.05);
}

/* ===== 时间线 ===== */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--gradient-primary);
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-link);
  border: 2px solid var(--bg-main);
}

/* ===== 图片画廊 ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  aspect-ratio: 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

/* ===== 统计数字 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.stat-item {
  text-align: center;
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all var(--transition-medium);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-link);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ===== 表单样式 ===== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-heading);
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background: var(--bg-main);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--text-link);
  box-shadow: 0 0 0 3px rgba(30, 74, 122, 0.1);
}

/* ===== 通知提示 ===== */
.notification {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin: 16px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.notification-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.notification-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.notification-info {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* ===== 加载动画 ===== */
.loading {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-light);
  border-top-color: var(--text-link);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ===== 骨架屏 ===== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-soft) 25%, var(--bg-card) 50%, var(--bg-soft) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ===== 工具提示 ===== */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltip-text {
  visibility: hidden;
  background: var(--text-heading);
  color: var(--bg-main);
  text-align: center;
  padding: 6px 12px;
  border-radius: 6px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.85rem;
  white-space: nowrap;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* ===== 结束 ===== */
```