/* ============================================
   DESIGN SYSTEM: 翡翠金辉 · 自然奢华
   大满贯pg平台 — 志在必得
   ============================================ */

/* --- 设计Token（CSS变量） --- */
:root {
  --c-bg: #FEFCF8;
  --c-bg-alt: #F5F9F6;
  --c-bg-card: #FFFFFF;
  --c-text: #1A1A2E;
  --c-text-muted: #7A7A8A;
  --c-primary: #0D9488;
  --c-primary-dark: #0B7A70;
  --c-primary-light: #E6F5F2;
  --c-secondary: #D4A373;
  --c-secondary-light: #FDF6ED;
  --c-accent: #E87A5D;
  --c-accent-light: #FDE8E0;
  --c-gold: #D4A373;
  --c-gold-light: #F5E6D0;
  --c-border: #E8E2DA;
  --c-shadow: rgba(13, 148, 136, 0.08);
  --c-white: #FFFFFF;
  --font-sans: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --shadow-sm: 0 2px 8px var(--c-shadow);
  --shadow-md: 0 6px 24px var(--c-shadow);
  --shadow-lg: 0 12px 40px rgba(13, 148, 136, 0.12);
  --radius: 14px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
  font-family: var(--font-sans);
  overflow-x: hidden;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--c-primary);
  color: var(--c-white);
}

/* --- 滚动条美化 --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--c-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--c-primary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary-dark); }

/* --- 核心布局 --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: 100px 0;
}

.section:nth-child(even) {
  background: var(--c-bg-alt);
}

/* --- 导航 — 固定顶部 --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(254, 252, 248, 0.92);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--c-border);
  transition: background var(--transition);
}

.site-header.scrolled {
  background: rgba(254, 252, 248, 0.98);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--c-text);
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: var(--c-white);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.25);
  position: relative;
  overflow: hidden;
}

.logo-icon::after {
  content: '🏆';
  font-size: 1.2rem;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-text-muted);
  transition: color var(--transition);
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.3px;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  transition: width var(--transition);
  border-radius: 2px;
}

.main-nav a:hover {
  color: var(--c-primary);
}

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

.main-nav a.active {
  color: var(--c-primary);
}

.main-nav a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 50px !important;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)) !important;
  color: var(--c-white) !important;
  font-weight: 700 !important;
  font-size: 0.85rem !important;
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
  transition: all var(--transition) !important;
  letter-spacing: 0.5px !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 24px rgba(13, 148, 136, 0.4) !important;
  color: var(--c-white) !important;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: var(--c-bg-alt);
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--c-text);
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: var(--c-gold-light);
}

/* --- 首页Hero --- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 72px;
  background: linear-gradient(165deg, var(--c-bg) 0%, var(--c-secondary-light) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(13, 148, 136, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 50%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(212, 163, 115, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 740px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--c-primary-light), var(--c-gold-light));
  color: var(--c-primary-dark);
  border: 1px solid rgba(13, 148, 136, 0.1);
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--c-text) 40%, var(--c-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 strong {
  color: var(--c-secondary);
  -webkit-text-fill-color: var(--c-secondary);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
  color: var(--c-text-muted);
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

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

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--transition);
  font-size: 0.9rem;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: var(--c-white);
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(13, 148, 136, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--c-border);
  color: var(--c-text);
}

.btn-outline:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: var(--c-primary-light);
  transform: translateY(-2px);
}

/* --- 标签/标题 --- */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 12px;
  text-transform: uppercase;
  color: var(--c-primary);
  background: var(--c-primary-light);
  padding: 4px 16px;
  border-radius: 50px;
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--c-text);
  line-height: 1.2;
}

.section-desc {
  max-width: 620px;
  opacity: 0.7;
  margin-bottom: 48px;
  color: var(--c-text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* --- 卡片网格 --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: var(--radius);
  padding: 32px 28px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  opacity: 0;
  transition: opacity var(--transition);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

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

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--c-primary-light);
  color: var(--c-primary);
  transition: all var(--transition);
}

.category-card:hover .card-icon {
  background: var(--c-primary);
  color: var(--c-white);
  transform: scale(1.05);
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}

.card-link::after {
  content: '→';
  transition: transform var(--transition);
}

.card-link:hover {
  gap: 10px;
}

.card-link:hover::after {
  transform: translateX(2px);
}

/* --- 特性块 --- */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.1);
  pointer-events: none;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.feature-image:hover img {
  transform: scale(1.03);
}

.feature-text {
  padding: 8px 0;
}

.feature-text .section-title {
  margin-bottom: 20px;
}

.feature-text p {
  color: var(--c-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--c-text);
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: var(--c-primary);
  font-size: 1.1rem;
}

/* --- 数据条 --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  border-radius: 3px;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.stat-item:hover::before {
  opacity: 1;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: var(--c-text-muted);
  font-weight: 500;
}

/* --- 内容墙 --- */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  transition: all var(--transition);
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.content-wall-item:hover img {
  transform: scale(1.03);
}

.content-wall-body {
  padding: 24px 24px 26px;
}

.content-wall-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--c-text);
}

.content-wall-body p {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* --- FAQ --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--c-bg-card);
  transition: all var(--transition);
}

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

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--c-text);
  transition: color var(--transition);
  gap: 16px;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--c-primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
  color: var(--c-accent);
}

.faq-item .faq-answer {
  padding: 0 24px 18px;
  display: none;
  opacity: 0.7;
  color: var(--c-text-muted);
  line-height: 1.7;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeSlideIn 0.35s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.faq-item.open {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-sm);
}

/* --- CTA横幅 --- */
.cta-banner {
  padding: 64px 32px;
  text-align: center;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 50%, #0B6B62 100%);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  z-index: 0;
}

.cta-banner > * {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  color: var(--c-white);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.cta-banner .btn-primary {
  background: var(--c-white);
  color: var(--c-primary-dark);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  background: var(--c-gold-light);
}

/* --- 页脚 --- */
.site-footer {
  padding: 72px 0 32px;
  background: var(--c-text);
  color: rgba(255,255,255,0.8);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary), var(--c-primary));
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand .logo {
  color: var(--c-white);
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.6;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  text-decoration: none;
  font-size: 0.85rem;
  opacity: 0.6;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition);
}

.footer-col a:hover {
  opacity: 1;
  color: var(--c-gold);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.5;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.3px;
}

/* --- 工具类 --- */
.text-accent {
  color: var(--c-accent);
}

.text-center {
  text-align: center;
}

.seo-description {
  max-width: 640px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: var(--c-text-muted);
  line-height: 1.7;
  font-size: 1.05rem;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.section-label + .section-title {
  margin-top: 4px;
}

/* --- 附加组件：品牌徽章 --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--c-gold-light);
  color: var(--c-secondary);
  border: 1px solid rgba(212, 163, 115, 0.2);
}

/* --- 附加组件：分割线装饰 --- */
.divider {
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  border-radius: 3px;
  margin: 16px 0 24px;
}

.divider.center {
  margin-left: auto;
  margin-right: auto;
}

/* --- 附加组件：引文块 --- */
.quote-block {
  border-left: 4px solid var(--c-primary);
  padding: 16px 24px;
  background: var(--c-primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}

.quote-block p {
  font-style: italic;
  color: var(--c-text-muted);
  font-size: 1rem;
}

/* --- Hero 响应式装饰元素（纯CSS） --- */
.hero-decoration {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.hero-decoration .circle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(13, 148, 136, 0.06) 0%, transparent 70%);
}

.hero-decoration .circle:nth-child(1) {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -100px;
}

.hero-decoration .circle:nth-child(2) {
  width: 300px;
  height: 300px;
  bottom: -50px;
  left: -50px;
  background: radial-gradient(circle at center, rgba(212, 163, 115, 0.05) 0%, transparent 70%);
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
    padding: 0 20px;
  }
  
  .main-nav {
    display: none;
  }
  
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(254, 252, 248, 0.98);
    backdrop-filter: blur(16px);
    padding: 24px 28px;
    gap: 16px;
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-md);
    animation: navSlideIn 0.3s ease;
  }
  
  @keyframes navSlideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .feature-block.reverse {
    direction: ltr;
  }
  
  .feature-block.reverse .feature-image {
    order: -1;
  }
  
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
  }
  
  .section {
    padding: 64px 0;
  }
  
  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
  
  .cta-banner {
    padding: 48px 24px;
    border-radius: var(--radius);
  }
  
  .cta-banner h2 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .header-inner {
    padding: 0 16px;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  
  .stat-item {
    padding: 24px 16px;
  }
  
  .section-title {
    font-size: 1.6rem;
  }
  
  .section-desc {
    font-size: 0.95rem;
  }
  
  .feature-block {
    gap: 28px;
  }
  
  .content-wall-item img {
    height: 160px;
  }
  
  .main-nav.open {
    padding: 16px 20px;
  }
  
  .nav-cta {
    width: auto;
    text-align: center;
  }
}

/* --- 打印样式 --- */
@media print {
  .site-header {
    position: relative;
    background: var(--c-white);
    border-bottom: 1px solid #ddd;
  }
  
  .hero {
    min-height: auto;
    padding: 40px 0;
    background: var(--c-white);
  }
  
  .cta-banner {
    background: var(--c-primary) !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  
  .btn, .nav-cta {
    box-shadow: none !important;
  }
}