```css
/* ===== 爱情岛 · 全站样式 ===== */
/* 风格：暖色柔和 · 毛玻璃 · 响应式 */

/* ---------- 变量与主题 ---------- */
:root {
  --bg-primary: #fbfaf7;
  --bg-secondary: #f0ece6;
  --bg-card: rgba(255, 255, 255, 0.7);
  --text-primary: #17202a;
  --text-secondary: #243447;
  --text-muted: #334155;
  --heading-color: #0f172a;
  --link-color: #9f2f4b;
  --link-hover: #6d1f34;
  --border-light: #d8d0c8;
  --nav-bg: rgba(255, 255, 255, 0.75);
  --footer-bg: #1f1a1c;
  --footer-text: #e2e8f0;
  --white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.06);
  --radius: 20px;
  --glass-blur: blur(12px);
}

[data-theme="dark"] {
  --bg-primary: #12181f;
  --bg-secondary: #1e2630;
  --bg-card: rgba(26, 34, 43, 0.8);
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --heading-color: #f1f5f9;
  --link-color: #f0a5b5;
  --link-hover: #ffc1cf;
  --border-light: #334155;
  --nav-bg: rgba(15, 20, 25, 0.8);
  --footer-bg: #0b0e12;
  --footer-text: #d1d9e6;
  --white: #ffffff;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--heading-color);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 { font-size: 2.4rem; }
h2 { font-size: 2rem; margin-top: 2.2rem; }
h3 { font-size: 1.5rem; margin-top: 1.8rem; }
h4 { font-size: 1.2rem; margin-top: 1.2rem; }

p {
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}

a {
  color: var(--link-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

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

ul, ol {
  padding-left: 1.8rem;
  margin-bottom: 1.5rem;
}

li { margin-bottom: 0.5rem; }

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

.container {
  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(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-sm);
  transition: background 0.3s;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--heading-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-primary);
  font-weight: 500;
}

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

.search-box {
  display: flex;
  background: var(--bg-secondary);
  border-radius: 40px;
  padding: 0.2rem 0.2rem 0.2rem 1rem;
  align-items: center;
  border: 1px solid var(--border-light);
  transition: box-shadow 0.2s;
}

.search-box:focus-within {
  box-shadow: 0 0 0 3px rgba(159, 47, 75, 0.15);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 0.4rem 0.6rem;
  color: var(--text-primary);
  outline: none;
  width: 160px;
}

.search-box button {
  background: var(--link-color);
  border: none;
  border-radius: 40px;
  padding: 0.4rem 1rem;
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.search-box button:hover {
  background: var(--link-hover);
}

.icon-btn {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-primary);
  padding: 0 0.5rem;
  transition: transform 0.2s;
}

.icon-btn:hover { transform: scale(1.1); }

.hamburger { display: none; }

/* ---------- Hero Banner（渐变 + 毛玻璃） ---------- */
.hero {
  background: linear-gradient(145deg, #f3e8e2 0%, #e7d9d3 50%, #dcc8c0 100%);
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(168, 50, 70, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

[data-theme="dark"] .hero {
  background: linear-gradient(145deg, #1e2836, #16202a);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--heading-color), var(--link-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  background: var(--link-color);
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 60px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-block;
}

.btn:hover {
  background: var(--link-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(159, 47, 75, 0.3);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--link-color);
  color: var(--link-color);
}

.btn-outline:hover {
  background: var(--link-color);
  color: white;
}

.hero svg {
  width: 100%;
  max-width: 400px;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- 卡片（毛玻璃 + hover） ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 3rem 0;
}

.card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

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

.card h3 {
  margin-top: 0.5rem;
  margin-bottom: 0.8rem;
}

.card p { color: var(--text-secondary); }

/* ---------- 文章列表 ---------- */
.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
  margin: 2rem 0;
}

.article-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.article-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-md);
  border-color: var(--link-color);
}

.article-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.5s;
}

.article-card:hover img { transform: scale(1.05); }

.article-content { padding: 1.5rem; }

.article-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

/* ---------- FAQ ---------- */
.faq-item {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: 16px;
  margin-bottom: 1rem;
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item:hover {
  border-color: var(--link-color);
}

.faq-question {
  padding: 1.2rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
  color: var(--heading-color);
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--bg-secondary);
}

.faq-question span {
  font-size: 1.4rem;
  transition: transform 0.3s;
  color: var(--link-color);
}

.faq-item.active .faq-question span {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem;
  color: var(--text-primary);
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
  display: none;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 表格 ---------- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.info-table th {
  background: var(--bg-secondary);
  color: var(--heading-color);
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
}

.info-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  background: var(--bg-card);
}

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

.info-table tr:hover td {
  background: var(--bg-secondary);
}

/* ---------- 页脚 ---------- */
footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

footer a {
  color: #d9a0b0;
  transition: color 0.2s;
}

footer a:hover {
  color: #ffc1cf;
}

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

.footer-grid h4 {
  color: var(--footer-text);
  margin-bottom: 1rem;
}

.footer-bottom {
  border-top: 1px solid #3a3038;
  margin-top: 2rem;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: #b0a3ab;
}

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

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

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--link-color);
  color: white;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  border: none;
  z-index: 100;
  transition: all 0.3s;
  opacity: 0;
  visibility: hidden;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--link-hover);
  transform: translateY(-4px);
}

/* ---------- HowTo 区块 ---------- */
#howto > div {
  background: var(--bg-secondary);
  padding: 2rem;
  border-radius: 24px;
  border: 1px solid var(--border-light);
}

#howto ol > li {
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border-light);
}

#howto ol > li:last-child {
  border-bottom: none;
}

/* ---------- 品牌故事 ---------- */
#brand > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

#brand ul li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border-light);
}

#brand ul li:last-child {
  border-bottom: none;
}

/* ---------- 响应式设计 ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { margin: 0 auto; }
  .hero-cta { justify-content: center; }
  .search-box { display: none; }
  #brand > div { grid-template-columns: 1fr; }
  .hero svg { margin: 0 auto; max-width: 280px; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .nav-inner { padding: 0.6rem 16px; }
  .logo { font-size: 1.4rem; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.2rem; }
  .hero { padding: 2.5rem 0; }
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 1rem; }
  .btn { padding: 0.6rem 1.2rem; font-size: 0.9rem; }
  .card-grid { grid-template-columns: 1fr; }
  .article-list { grid-template-columns: 1fr; }
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
}

/* ---------- 打印优化 ---------- */
@media print {
  .navbar, .back-to-top, .hero-cta, .search-box { display: none; }
  body { background: white; color: black; }
  .card, .article-card, .faq-item { box-shadow: none; border: 1px solid #ddd; }
}
```