/* ================================================
   蜜桃视频 — "蜜桃汽水" 视觉设计系统
   蜜桃奶油 × 气泡纹理 × 有机形状 × 薄荷点缀
   ================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: #FFF6F0;
  color: #3D2B25;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* 全局气泡纹理背景 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(255, 122, 92, 0.18) 1.5px, transparent 1.5px);
  background-size: 36px 36px;
  z-index: -1;
  pointer-events: none;
}

::selection {
  background: rgba(255, 122, 92, 0.25);
  color: #3D2B25;
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: #FFF0E8;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #FF7A5C, #FF5B7A);
  border-radius: 20px;
  border: 2px solid #FFF0E8;
}

/* ———— 核心布局 ———— */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.section:nth-child(even) {
  background: linear-gradient(180deg, #FFF6F0 0%, #FFEFE5 100%);
}

/* ———— 导航 ———— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 246, 240, 0.9);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(255, 122, 92, 0.12);
  transition: box-shadow 0.3s;
}

.site-header:hover {
  box-shadow: 0 8px 32px rgba(255, 122, 92, 0.06);
}

.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: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: #3D2B25;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 50% 50% 46% 46%;
  background: linear-gradient(145deg, #FF9A76, #FF5B7A);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
  box-shadow: 0 6px 16px rgba(255, 91, 122, 0.35);
  position: relative;
}

.logo-icon::before {
  content: '🍑';
  font-size: 1.2rem;
}

.logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.05);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #5A3D32;
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 4px;
  background: linear-gradient(90deg, #FF7A5C, #2ECC9A);
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.main-nav a:not(.nav-cta):hover {
  color: #FF5B7A;
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px;
  border-radius: 50px;
  color: #fff !important;
  font-weight: 700;
  background: linear-gradient(135deg, #FF7A5C, #FF5B7A);
  box-shadow: 0 8px 20px rgba(255, 91, 122, 0.35);
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(255, 91, 122, 0.45);
  color: #fff !important;
}

.menu-toggle {
  display: none;
  background: rgba(255, 122, 92, 0.1);
  border: 1px solid rgba(255, 122, 92, 0.2);
  border-radius: 12px;
  font-size: 1.3rem;
  padding: 8px 12px;
  cursor: pointer;
  color: #FF5B7A;
  line-height: 1;
}

/* ———— 首页 Hero ———— */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  position: relative;
  padding: 120px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(120deg, #FFF6F0 0%, #FFE8DD 60%, #FFF2EC 100%);
}

.hero::before {
  content: '';
  position: absolute;
  width: 480px;
  height: 480px;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  top: 8%;
  right: 2%;
  z-index: 0;
  animation: heroBubble 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  border: 1.5px solid rgba(255, 122, 92, 0.18);
  border-radius: 50%;
  bottom: 12%;
  left: 40%;
  z-index: 0;
  animation: heroBubble 12s ease-in-out infinite alternate-reverse;
}

@keyframes heroBubble {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-24px) scale(1.04); }
}

.hero-content {
  max-width: 620px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: 40px;
  margin-bottom: 20px;
  background: rgba(255, 122, 92, 0.12);
  border: 1px solid rgba(255, 122, 92, 0.2);
  color: #FF5B5B;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -2px;
  margin-bottom: 22px;
  color: #3D2B25;
  position: relative;
}

.hero h1::before {
  content: '';
  display: block;
  width: 84px;
  height: 8px;
  border-radius: 20px;
  background: linear-gradient(90deg, #FF7A5C, #FFB88C, #2ECC9A);
  margin-bottom: 28px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #FF7A5C, #FF2E63);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: #8A6B5E;
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.hero-image {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  width: 360px;
  height: 440px;
  border-radius: 46% 54% 42% 58% / 52% 46% 54% 48%;
  overflow: hidden;
  border: 8px solid #FFFCF9;
  box-shadow: 0 32px 80px rgba(255, 91, 122, 0.3), 0 4px 20px rgba(255, 122, 92, 0.15);
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-image::before {
  content: '🍃';
  position: absolute;
  top: -18px;
  right: 16px;
  font-size: 2.6rem;
  transform: rotate(25deg);
  z-index: 2;
  filter: drop-shadow(0 4px 8px rgba(46, 204, 153, 0.4));
}

.hero-image:hover {
  transform: rotate(-2deg) scale(1.01);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-image:hover img {
  transform: scale(1.06);
}

/* ———— 按钮 ———— */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, #FF7A5C, #FF5B7A);
  color: #fff;
  box-shadow: 0 10px 28px rgba(255, 91, 122, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 38px rgba(255, 91, 122, 0.45);
}

.btn-outline {
  background: rgba(255, 184, 140, 0.12);
  color: #FF5B7A;
  border: 1.5px solid rgba(255, 122, 92, 0.4);
  box-shadow: none;
}

.btn-outline:hover {
  background: rgba(255, 184, 140, 0.22);
  border-color: #FF7A5C;
  transform: translateY(-3px);
}

/* ———— 标签/标题 ———— */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 6px 18px;
  border-radius: 40px;
  background: rgba(255, 122, 92, 0.08);
  border: 1px solid rgba(255, 122, 92, 0.15);
  color: #FF5B7A;
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 14px;
  color: #3D2B25;
  line-height: 1.2;
}

.section-desc {
  max-width: 620px;
  color: #8A6B5E;
  margin-bottom: 44px;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ———— 卡片网格 ———— */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  background: #FFFCF9;
  border: 1px solid rgba(255, 184, 140, 0.3);
  border-radius: 24px;
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.category-card::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -40%;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(255, 184, 140, 0.35), transparent 70%);
  border-radius: 50%;
  transition: transform 0.5s ease;
}

.category-card::after {
  content: '';
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  background: radial-gradient(circle, rgba(255, 122, 92, 0.15), transparent 60%);
  border-radius: 50%;
}

.category-card:hover {
  transform: translateY(-8px) rotate(-0.5deg);
  box-shadow: 0 20px 48px rgba(255, 122, 92, 0.16);
  border-color: rgba(255, 122, 92, 0.35);
  background: #FFFFFF;
}

.category-card:hover::before {
  transform: scale(1.4);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.5rem;
  background: linear-gradient(135deg, #FFE0D1, #FFB88C);
  color: #FF5B5B;
  box-shadow: 0 8px 20px rgba(255, 122, 92, 0.2);
  transform: rotate(-4deg);
}

.category-card:nth-child(2n) .card-icon {
  background: linear-gradient(135deg, #D4F5E9, #A8E6CF);
  color: #1FA97E;
  transform: rotate(4deg);
}

.category-card:nth-child(3n) .card-icon {
  background: linear-gradient(135deg, #FFF0B8, #FFE0A0);
  color: #D48800;
  transform: rotate(-2deg);
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #FF5B7A;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  transition: gap 0.3s;
}

.card-link:hover {
  gap: 8px;
}

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

.feature-image {
  border-radius: 30px;
  overflow: hidden;
  position: relative;
  min-height: 380px;
  background: linear-gradient(145deg, #FFE0D1, #FFB88C);
  box-shadow: 0 24px 64px rgba(255, 122, 92, 0.2);
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(255, 122, 92, 0.06), transparent 50%);
  pointer-events: none;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.feature-image:hover img {
  transform: scale(1.04);
}

.feature-text {
  padding: 20px 0;
}

.feature-text .section-label {
  margin-bottom: 12px;
}

.feature-list {
  list-style: none;
  margin-top: 24px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1rem;
  color: #5A3D32;
  border-bottom: 1px dashed rgba(255, 122, 92, 0.15);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '🍑';
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(255, 122, 92, 0.3));
}

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

.stat-item {
  background: #FFFCF9;
  border: 1px solid rgba(255, 184, 140, 0.3);
  border-radius: 24px;
  padding: 36px 20px;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.stat-item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, #FF7A5C, #FF5B7A);
  transition: width 0.4s;
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(255, 122, 92, 0.14);
}

.stat-item:hover::before {
  width: 80px;
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.1;
  background: linear-gradient(120deg, #FF7A5C, #FF2E63);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: #8A6B5E;
  margin-top: 8px;
  font-weight: 500;
}

/* ———— 内容墙 ———— */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  background: #FFFCF9;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 184, 140, 0.3);
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.content-wall-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(255, 122, 92, 0.16);
  border-color: rgba(255, 122, 92, 0.4);
}

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

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

.content-wall-body {
  padding: 22px;
}

.content-wall-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #3D2B25;
}

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

.faq-item {
  border: 1px solid rgba(255, 184, 140, 0.3);
  border-radius: 18px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #FFFCF9;
  transition: all 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item:hover {
  border-color: rgba(255, 122, 92, 0.4);
}

.faq-item.open {
  border-color: rgba(255, 122, 92, 0.5);
  box-shadow: 0 12px 32px rgba(255, 122, 92, 0.12);
  background: #FFFFFF;
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 650;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #3D2B25;
  gap: 16px;
}

.faq-item .faq-question::after {
  content: '＋';
  font-size: 1.4rem;
  color: #FF7A5C;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  flex-shrink: 0;
}

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

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  color: #8A6B5E;
  line-height: 1.7;
}

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

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

/* ———— CTA 横幅 ———— */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: 32px;
  color: #fff;
  background: linear-gradient(120deg, #FF7A5C, #FF5B7A, #FF9A76);
  box-shadow: 0 24px 64px rgba(255, 91, 122, 0.35);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '🍑';
  position: absolute;
  font-size: 200px;
  right: -30px;
  bottom: -50px;
  opacity: 0.15;
  transform: rotate(-15deg);
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.1));
}

.cta-banner::after {
  content: '';
  position: absolute;
  width: 160px;
  height: 160px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  top: -40px;
  left: 60px;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #FF5B7A;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.18);
}

/* ———— 页脚 ———— */
.site-footer {
  background: #FFE8DD;
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 122, 92, 0.15);
  color: #3D2B25;
}

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

.footer-brand {
  padding-right: 32px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: #8A6B5E;
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #3D2B25;
  letter-spacing: 0.5px;
}

.footer-col a {
  color: #8A6B5E;
  text-decoration: none;
  display: block;
  padding: 5px 0;
  font-size: 0.9rem;
  transition: all 0.25s;
}

.footer-col a:hover {
  color: #FF5B7A;
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 122, 92, 0.2);
  margin-top: 48px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #8A6B5E;
}

.footer-bottom a {
  color: #FF5B7A;
  text-decoration: none;
}

/* ———— 工具类 ———— */
.text-accent {
  color: #FF5B7A;
  font-weight: 700;
}

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

.seo-description {
  max-width: 640px;
  margin: 0 auto 48px;
  color: #8A6B5E;
  line-height: 1.7;
  font-size: 0.95rem;
}

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

/* ———— 响应式 ———— */
@media (max-width: 920px) {
  .hero {
    flex-direction: column;
    padding: 120px 24px 64px;
    text-align: center;
    gap: 48px;
  }

  .hero-content {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero h1::before {
    margin-left: auto;
    margin-right: auto;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    width: 280px;
    height: 340px;
  }

  .feature-block {
    gap: 40px;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

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

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

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

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #FFFCF9;
    padding: 24px;
    gap: 16px;
    box-shadow: 0 24px 48px rgba(255, 122, 92, 0.15);
    border-bottom: 1px solid rgba(255, 122, 92, 0.1);
    border-radius: 0 0 24px 24px;
  }

  .main-nav.open a {
    width: 100%;
    text-align: center;
    padding: 10px;
  }

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

  .hero h1 {
    font-size: 2.4rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-banner h2 {
    font-size: 1.8rem;
  }
}

@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;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero {
    padding: 100px 20px 48px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-image {
    width: 220px;
    height: 270px;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .cta-banner {
    padding: 48px 20px;
    border-radius: 24px;
  }

  .cta-banner::before {
    font-size: 140px;
  }
}