```css

/* ===== 野花影院 · 全站样式 ===== */
/* 风格关键词：极光夜航 + 琉璃质感 + 渐变微光 */

/* ---------- 设计令牌 / 主题变量 ---------- */
:root {
  /* 主色与背景（日间） */
  --bg: #f4f7fb;                 /* 背景：柔和冰蓝 */
  --bg-grad: radial-gradient(circle at 10% 20%, rgba(214, 228, 255, 0.6), transparent 35%),
             radial-gradient(circle at 90% 10%, rgba(255, 204, 128, 0.2), transparent 30%),
             linear-gradient(145deg, #eef3fa 0%, #e6ecf5 100%);
  --surface: rgba(255, 255, 255, 0.72);   /* 毛玻璃表面 */
  --surface-solid: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.58);
  --primary: #1b4f8a;           /* 深海蓝 */
  --primary-light: #3c7bc4;
  --primary-dark: #0f2a4a;
  --accent: #f0a35e;            /* 琥珀暖光 */
  --accent-2: #7c9ff0;
  --text: #1f2a3d;              /* 高对比正文 */
  --text-soft: #3d5068;
  --text-faint: #5a6b82;
  --border: rgba(60, 90, 130, 0.18);
  --border-strong: rgba(60, 90, 130, 0.3);

  /* 卡片与组件 */
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-bg-solid: #ffffff;
  --nav-bg: rgba(255, 255, 255, 0.7);
  --footer-bg: #0a1622;
  --footer-text: #e0e9f2;
  --btn-bg: linear-gradient(135deg, #1b4f8a, #2a6cb8);
  --btn-text: #ffffff;
  --tag-bg: rgba(27, 79, 138, 0.12);
  --tag-text: #1b4f8a;

  /* 阴影与效果 */
  --shadow-sm: 0 4px 12px rgba(15, 35, 60, 0.06);
  --shadow-md: 0 12px 28px rgba(15, 35, 60, 0.1);
  --shadow-lg: 0 24px 48px rgba(15, 35, 60, 0.12);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 36px;
  --blur: blur(16px) saturate(160%);

  /* 动效 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: all 0.4s var(--ease);
}

/* 暗色主题 —— 极光夜航 */
[data-theme="dark"] {
  --bg: #0b1524;
  --bg-grad: radial-gradient(circle at 20% 10%, rgba(80, 120, 200, 0.25), transparent 40%),
             radial-gradient(circle at 80% 30%, rgba(180, 130, 255, 0.12), transparent 35%),
             linear-gradient(145deg, #0d1b2e 0%, #0f1b2c 100%);
  --surface: rgba(20, 32, 50, 0.75);
  --surface-solid: #152238;
  --surface-glass: rgba(20, 32, 50, 0.6);
  --primary: #8bb7f0;
  --primary-light: #a8ccff;
  --primary-dark: #d0e2ff;
  --accent: #f5b87e;
  --accent-2: #9bb8ff;
  --text: #e6eef8;
  --text-soft: #b8c9dd;
  --text-faint: #8fa3bd;
  --border: rgba(150, 180, 220, 0.16);
  --border-strong: rgba(150, 180, 220, 0.32);

  --card-bg: rgba(21, 34, 56, 0.85);
  --card-bg-solid: #152238;
  --nav-bg: rgba(10, 20, 35, 0.72);
  --footer-bg: #060e18;
  --footer-text: #d3e2f0;
  --btn-bg: linear-gradient(135deg, #8bb7f0, #a8ccff);
  --btn-text: #0b1524;
  --tag-bg: rgba(139, 183, 240, 0.15);
  --tag-text: #a8ccff;

  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 12px 28px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 24px 48px rgba(0, 0, 0, 0.5);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) transparent;
}

body {
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  transition: background-color 0.5s ease, color 0.5s ease;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 20px;
}

/* 图片与媒体响应 */
img,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 链接 */
a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease, opacity 0.3s ease;
  position: relative;
}

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

/* 标题层级 */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  transition: color 0.3s;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  background: linear-gradient(120deg, var(--primary-dark), var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0.8em 0 0.4em;
}

h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 2.2em 0 0.9em;
  position: relative;
  padding-left: 20px;
  border-left: 6px solid var(--accent);
  border-radius: 0 4px 4px 0;
}

h3 {
  font-size: 1.35rem;
  margin: 1.6em 0 0.6em;
  color: var(--text-soft);
}

h4 {
  font-size: 1.1rem;
  margin: 1.2em 0 0.5em;
  color: var(--text-faint);
  font-weight: 600;
}

p {
  margin: 0.8em 0;
  color: var(--text);
}

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

/* ---------- 导航栏 毛玻璃 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
  transition: background 0.4s, box-shadow 0.4s;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  gap: 20px;
}

.logo {
  font-size: 1.7rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 40px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.3s, color 0.3s, transform 0.2s;
}

.nav-links a:hover {
  background: var(--tag-bg);
  color: var(--primary-light);
  transform: translateY(-2px);
  text-decoration: none;
}

.theme-toggle,
.menu-btn {
  background: var(--surface-glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 40px;
  padding: 8px 18px;
  color: var(--text);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.theme-toggle:hover,
.menu-btn:hover {
  background: var(--primary);
  color: var(--btn-text);
  border-color: transparent;
  transform: scale(1.02);
}

.menu-btn {
  display: none;
  font-size: 1.2rem;
}

/* ---------- 主内容区 ---------- */
main {
  padding: 20px 0 60px;
  position: relative;
}

/* 首屏介绍 */
.hero-section {
  padding: 40px 0 20px;
  text-align: center;
}

.hero-section p {
  font-size: 1.2rem;
  background: var(--surface);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  line-height: 1.8;
}

/* ---------- Banner 卡片 渐变 ---------- */
.banner {
  background: linear-gradient(120deg, 
    var(--primary-dark) 0%, 
    var(--primary) 45%, 
    var(--accent) 100%);
  color: #fff;
  padding: 48px 48px;
  border-radius: var(--radius-lg);
  margin: 32px 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

/* 装饰光斑 */
.banner::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -80px;
  right: -60px;
  filter: blur(50px);
  z-index: -1;
}

.banner::after {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(255, 180, 100, 0.25);
  border-radius: 50%;
  bottom: -60px;
  left: 20%;
  filter: blur(60px);
  z-index: -1;
}

.banner h2 {
  color: #fff;
  border-left-color: var(--accent);
  font-size: 2.2rem;
  margin-top: 0;
}

.banner p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.15rem;
}

/* ---------- 网格与卡片 ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
  margin: 30px 0;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s, background 0.3s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, var(--primary-light), transparent 60%);
  opacity: 0.06;
  transition: opacity 0.4s;
}

.card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.card:hover::before {
  opacity: 0.12;
}

.card h3 {
  margin-top: 0;
  color: var(--text);
  font-size: 1.4rem;
  position: relative;
}

.card h4 {
  color: var(--text-soft);
}

.card p {
  color: var(--text-soft);
  position: relative;
}

/* 标签 */
.tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-text);
  backdrop-filter: blur(4px);
  padding: 6px 18px;
  border-radius: 40px;
  font-size: 0.9rem;
  font-weight: 500;
  margin: 4px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.tag:hover {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
}

/* 文章卡片 */
article {
  background: var(--surface);
  backdrop-filter: blur(8px);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all 0.3s;
}

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

article h4 {
  font-size: 1.2rem;
  color: var(--text);
  margin-bottom: 8px;
}

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

/* ---------- FAQ 手风琴 ---------- */
details {
  background: var(--surface-glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
  margin: 12px 0;
  transition: all 0.3s;
}

details:hover {
  border-color: var(--primary-light);
  background: var(--surface);
}

summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  font-size: 1.05rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

summary::after {
  content: "+";
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--accent);
  transition: transform 0.3s;
}

details[open] summary::after {
  transform: rotate(45deg);
}

details p {
  color: var(--text-soft);
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* ---------- 表格 ---------- */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 24px 0;
  background: var(--surface-glass);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
}

th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  padding: 16px;
  text-align: left;
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

tr:last-child td {
  border-bottom: none;
}

/* ---------- 地址 / 联系我们 ---------- */
address {
  font-style: normal;
  background: var(--surface);
  backdrop-filter: blur(12px);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

address p {
  margin: 8px 0;
  color: var(--text);
}

address strong {
  color: var(--primary-dark);
}

/* 面包屑 */
nav[aria-label="breadcrumb"] {
  background: var(--surface);
  padding: 12px 20px;
  border-radius: 40px;
  margin-top: 20px;
  display: inline-block;
  border: 1px solid var(--border);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  background: var(--btn-bg);
  color: var(--btn-text);
  padding: 12px 28px;
  border: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s, opacity 0.3s;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
  opacity: 0.95;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  margin-top: 80px;
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer a {
  color: var(--footer-text);
  opacity: 0.8;
}

.footer a:hover {
  color: #fff;
  opacity: 1;
}

.footer h4 {
  color: #fff;
  margin-bottom: 12px;
}

.footer p {
  color: var(--footer-text);
  opacity: 0.9;
}

/* 返回顶部 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--primary);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.4s var(--ease);
}

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

.back-to-top:hover {
  background: var(--accent);
  transform: scale(1.08);
}

/* 滚动动画 reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* 动画延迟辅助 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
  }
  
  .banner {
    padding: 36px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.6rem;
    padding-left: 14px;
  }

  .nav-inner {
    flex-wrap: wrap;
    padding: 12px 16px;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background: var(--surface);
    backdrop-filter: var(--blur);
    padding: 16px 0;
    border-radius: var(--radius-md);
    margin-top: 10px;
    border: 1px solid var(--border);
  }

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

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 12px;
  }

  .menu-btn {
    display: block;
    margin-left: auto;
  }

  .theme-toggle {
    display: none; /* 可在footer或浮层保留 */
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .banner {
    padding: 24px;
    border-radius: var(--radius-md);
  }

  .banner h2 {
    font-size: 1.6rem;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.4rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  .card {
    padding: 20px;
  }
}

/* 无障碍 & 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 选中与高亮 */
::selection {
  background: var(--accent);
  color: #000;
}

/* 焦点样式 */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 打印样式 */
@media print {
  .navbar,
  .footer,
  .back-to-top,
  .banner {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .card,
  details,
  article {
    break-inside: avoid;
    border: 1px solid #ccc;
  }
}

```