/* ============================================
   bg捕鱼平台 · 鱼你同乐
   海洋气泡与光影 — 获奖级设计系统
   ============================================ */

/* 基础重置 + 自定义属性 */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --ocean-light: #f0f8ff;
  --ocean-mist: #e3f0f9;
  --ocean-sky: #b8dff0;
  --ocean-blue: #4a9eff;
  --ocean-deep: #2b6c9e;
  --coral: #ff7e67;
  --coral-light: #ff9e8a;
  --gold: #ffd700;
  --gold-light: #ffe44d;
  --sand: #fff8e7;
  --white: #ffffff;
  --text-primary: #1a2a3a;
  --text-secondary: #4a5a6a;
  --text-light: #7a8a9a;
  --shadow-soft: 0 8px 32px rgba(74, 158, 255, 0.10);
  --shadow-medium: 0 12px 40px rgba(74, 158, 255, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --bubble-size: 120px;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: var(--ocean-light);
  color: var(--text-primary);
  line-height: 1.6;
  position: relative;
}

/* 海洋气泡背景动画 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 15% 25%, rgba(74, 158, 255, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 85% 40%, rgba(255, 126, 103, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(255, 215, 0, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   核心布局
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(180deg, var(--ocean-mist) 0%, var(--white) 100%);
}

.section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--ocean-blue), var(--coral), var(--gold), transparent);
  opacity: 0.3;
}

/* ============================================
   导航 — 透明气泡风格
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid rgba(74, 158, 255, 0.10);
  box-shadow: 0 4px 30px rgba(74, 158, 255, 0.06);
  transition: background 0.4s ease;
}

.site-header:hover {
  background: rgba(255, 255, 255, 0.90);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.02);
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: linear-gradient(135deg, var(--ocean-blue), var(--ocean-deep));
  color: white;
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.logo-icon::after {
  content: '';
  position: absolute;
  top: -20%;
  left: -20%;
  width: 60%;
  height: 60%;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  animation: bubbleFloat 3s ease-in-out infinite;
}

@keyframes bubbleFloat {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.6; }
  50% { transform: translate(10px, -10px) scale(1.3); opacity: 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(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color 0.3s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--ocean-blue), var(--coral));
  transition: width 0.4s ease;
  border-radius: 2px;
}

.main-nav a:hover {
  color: var(--ocean-blue);
}

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 50px !important;
  color: #fff !important;
  font-weight: 600 !important;
  background: linear-gradient(135deg, var(--coral), var(--coral-light));
  box-shadow: 0 4px 16px rgba(255, 126, 103, 0.3);
  transition: all 0.3s ease !important;
  letter-spacing: 0.3px;
}

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

.nav-cta:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(255, 126, 103, 0.4);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(74, 158, 255, 0.08);
  border-radius: 50%;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--ocean-blue);
  transition: background 0.3s ease;
}

.menu-toggle:hover {
  background: rgba(74, 158, 255, 0.15);
}

/* ============================================
   Hero — 海洋光影
   ============================================ */
.hero {
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(160deg, var(--ocean-light) 0%, var(--white) 40%, var(--ocean-mist) 100%);
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -8%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(74, 158, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -5%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 126, 103, 0.06) 0%, transparent 60%);
  border-radius: 50%;
  animation: heroGlow 10s ease-in-out infinite alternate-reverse;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); opacity: 0.5; }
  100% { transform: translate(30px, -20px) scale(1.2); opacity: 1; }
}

.hero-content {
  max-width: 680px;
  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;
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 126, 103, 0.15));
  color: var(--coral);
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 1px solid rgba(255, 126, 103, 0.15);
}

.hero h1 {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--ocean-deep) 50%, var(--ocean-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--gold), var(--coral));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}

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

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  position: relative;
  z-index: 2;
  transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.6s ease;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-image:hover {
  transform: perspective(1000px) rotateY(-2deg) rotateX(1deg) scale(1.01);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   按钮 — 气泡质感
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.6s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--ocean-blue), var(--ocean-deep));
  box-shadow: 0 6px 24px rgba(74, 158, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 36px rgba(74, 158, 255, 0.45);
}

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

.btn-outline:hover {
  background: rgba(74, 158, 255, 0.06);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(74, 158, 255, 0.15);
}

/* ============================================
   标签/标题
   ============================================ */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  margin-bottom: 14px;
  text-transform: uppercase;
  color: var(--ocean-blue);
  background: rgba(74, 158, 255, 0.08);
  padding: 4px 16px;
  border-radius: 50px;
}

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

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

/* ============================================
   卡片网格 — 气泡卡片
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: var(--radius-md);
  padding: 32px 28px;
  background: var(--white);
  border: 1px solid rgba(74, 158, 255, 0.08);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(74, 158, 255, 0.04);
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ocean-blue), var(--coral), var(--gold));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-medium);
  border-color: rgba(74, 158, 255, 0.15);
}

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

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--ocean-mist), var(--ocean-light));
  color: var(--ocean-blue);
  transition: all 0.4s ease;
}

.category-card:hover .card-icon {
  background: linear-gradient(135deg, var(--ocean-blue), var(--ocean-deep));
  color: white;
  transform: scale(1.05) rotate(-3deg);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.category-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ocean-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 12px;
  color: var(--ocean-deep);
}

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

.feature-block:nth-child(even) .feature-image {
  order: 1;
}

.feature-block:nth-child(even) .feature-text {
  order: 2;
}

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  position: relative;
  border: 1px solid rgba(74, 158, 255, 0.06);
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(74, 158, 255, 0.05), transparent);
  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 h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.feature-text p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.feature-list li::before {
  content: '🐟';
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gold);
  width: 24px;
  text-align: center;
}

/* ============================================
   数据条 — 金色鱼鳞
   ============================================ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 32px 20px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid rgba(255, 215, 0, 0.10);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(74, 158, 255, 0.04);
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.03) 0%, transparent 60%);
  animation: statShimmer 6s ease-in-out infinite;
}

@keyframes statShimmer {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(20px, -10px) rotate(5deg); }
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(255, 215, 0, 0.12);
  border-color: rgba(255, 215, 0, 0.20);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gold), var(--coral));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1.2;
  position: relative;
  z-index: 1;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: 8px;
  font-weight: 500;
  position: relative;
  z-index: 1;
}

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

.content-wall-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  border: 1px solid rgba(74, 158, 255, 0.06);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 2px 12px rgba(74, 158, 255, 0.04);
}

.content-wall-item:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-medium);
  border-color: rgba(74, 158, 255, 0.12);
}

.content-wall-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.content-wall-item:hover img {
  transform: scale(1.05);
}

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

.content-wall-body h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.content-wall-body p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.content-wall-body .meta {
  font-size: 0.8rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============================================
   FAQ — 气泡折叠
   ============================================ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid rgba(74, 158, 255, 0.08);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--white);
  box-shadow: 0 2px 8px rgba(74, 158, 255, 0.02);
}

.faq-item:hover {
  border-color: rgba(74, 158, 255, 0.15);
  box-shadow: 0 4px 16px rgba(74, 158, 255, 0.06);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--text-primary);
  transition: color 0.3s ease;
  user-select: none;
}

.faq-item .faq-question::after {
  content: '↓';
  font-size: 1.2rem;
  color: var(--ocean-blue);
  transition: transform 0.4s ease;
  opacity: 0.6;
}

.faq-item.open .faq-question::after {
  transform: rotate(180deg);
}

.faq-item.open .faq-question {
  color: var(--ocean-blue);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqFadeIn 0.4s ease;
}

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

/* ============================================
   CTA横幅 — 珊瑚落日
   ============================================ */
.cta-banner {
  padding: 64px 32px;
  text-align: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--ocean-blue) 0%, var(--ocean-deep) 40%, var(--coral) 100%);
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(74, 158, 255, 0.25);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.15) 0%, transparent 60%);
  border-radius: 50%;
  animation: ctaBubble 8s ease-in-out infinite;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
  border-radius: 50%;
  animation: ctaBubble 10s ease-in-out infinite alternate;
}

@keyframes ctaBubble {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -15px) scale(1.1); }
}

.cta-banner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}

.cta-banner .btn-primary {
  background: var(--white);
  color: var(--ocean-deep);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.2);
}

/* ============================================
   页脚 — 海洋沙滩
   ============================================ */
.site-footer {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, var(--ocean-light) 0%, var(--sand) 100%);
  border-top: 1px solid rgba(74, 158, 255, 0.06);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--ocean-blue), var(--gold), var(--coral), transparent);
  opacity: 0.3;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: 48px;
}

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

.footer-brand .logo {
  font-size: 1.1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h5 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  text-decoration: none;
  font-size: 0.85rem;
  color: var(--text-light);
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-col ul li a:hover {
  color: var(--ocean-blue);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(74, 158, 255, 0.08);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-light);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.footer-bottom a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-bottom a:hover {
  color: var(--ocean-blue);
}

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

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

.seo-description {
  max-width: 620px;
  margin: 0 auto 52px;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 1.05rem;
}

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

/* ============================================
   特色装饰组件
   ============================================ */

/* 波浪分割线 */
.wave-divider {
  width: 100%;
  height: 60px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60'%3E%3Cpath fill='%23f0f8ff' d='M0,30 C360,60 720,0 1440,30 L1440,60 L0,60 Z'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
}

/* 浮动渔网装饰 */
.fish-net-decoration {
  position: absolute;
  width: 200px;
  height: 200px;
  border: 2px solid rgba(74, 158, 255, 0.04);
  border-radius: 50%;
  pointer-events: none;
}

/* 气泡点缀 */
.bubble-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ocean-blue);
  opacity: 0.2;
  margin: 0 4px;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .feature-block:nth-child(even) .feature-image {
    order: 0;
  }

  .feature-block:nth-child(even) .feature-text {
    order: 0;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-number {
    font-size: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px 20px;
    gap: 16px;
    border-bottom: 1px solid rgba(74, 158, 255, 0.08);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
  }

  .main-nav.open a {
    padding: 10px 0;
  }

  .main-nav.open .nav-cta {
    text-align: center;
    margin-top: 8px;
  }

  .cta-banner {
    padding: 48px 24px;
  }

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

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-eyebrow {
    font-size: 0.7rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
    width: 100%;
    justify-content: center;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-item {
    padding: 24px 16px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   动画与特效
   ============================================ */

/* 鱼群游动动画 */
@keyframes fishSwim {
  0% { transform: translateX(-20px) translateY(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateX(calc(100vw + 40px)) translateY(-10px); opacity: 0; }
}

.fish-animation {
  position: fixed;
  font-size: 2rem;
  animation: fishSwim 12s linear infinite;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
}

/* 光晕脉冲 */
.pulse-glow {
  animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(74, 158, 255, 0.1); }
  50% { box-shadow: 0 0 40px rgba(74, 158, 255, 0.2); }
}

/* 加载入口动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-content,
.section .container > * {
  animation: fadeInUp 0.8s ease forwards;
}

.section .container > *:nth-child(2) { animation-delay: 0.1s; }
.section .container > *:nth-child(3) { animation-delay: 0.2s; }
.section .container > *:nth-child(4) { animation-delay: 0.3s; }

/* ============================================
   选择与高亮
   ============================================ */
::selection {
  background: rgba(74, 158, 255, 0.2);
  color: var(--text-primary);
}

::-moz-selection {
  background: rgba(74, 158, 255, 0.2);
  color: var(--text-primary);
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--ocean-light);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--ocean-blue), var(--coral));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--ocean-deep), var(--coral-light));
}