/* ========== 羞羞动漫 · Blush Sakura Design System ========== */
:root {
  --primary: #ff4d6d;
  --primary-soft: #ffd6de;
  --primary-light: #fff0f2;
  --secondary: #ff92a6;
  --accent: #ff7a9d;
  --ink: #4a2e38;
  --muted: #9b7d85;
  --card-border: rgba(255, 77, 109, 0.12);
  --bg: #fffaf5;
  --bg-alt: #fff0f0;
  --shadow: 0 8px 30px rgba(255, 77, 109, 0.08);
  --font: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  overflow-x: hidden;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 10% 20%, rgba(255, 182, 193, 0.22), transparent 25%),
    radial-gradient(circle at 88% 12%, rgba(255, 128, 151, 0.15), transparent 28%),
    radial-gradient(circle at 75% 85%, rgba(255, 182, 193, 0.18), transparent 22%),
    radial-gradient(circle at 30% 90%, rgba(255, 153, 170, 0.1), transparent 30%);
  color: var(--ink);
  min-height: 100vh;
}

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

.section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

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

.section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 15% 50%, rgba(255, 182, 193, 0.14), transparent 35%),
    radial-gradient(circle at 85% 30%, rgba(255, 128, 151, 0.1), transparent 30%);
}

/* ---------- 导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 250, 247, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 77, 109, 0.1);
  box-shadow: 0 4px 20px rgba(255, 77, 109, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 77, 109, 0.25);
  transform: rotate(-6deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  transition: color 0.2s, transform 0.2s;
  position: relative;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s;
}

.main-nav a:not(.nav-cta):hover {
  color: var(--primary);
}

.main-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 8px 20px;
  border-radius: 999px;
  color: #fff !important;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 4px 14px rgba(255, 77, 109, 0.28);
  transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 77, 109, 0.32);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-toggle::before,
.menu-toggle::after {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: 0.3s;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  right: -10%;
  top: 10%;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(255, 128, 151, 0.25), transparent 65%);
  border-radius: 50%;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  left: -5%;
  bottom: -20%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(255, 182, 193, 0.2), transparent 60%);
  border-radius: 50%;
  z-index: 0;
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary-soft));
  color: var(--primary);
  border: 1px solid rgba(255, 77, 109, 0.15);
  letter-spacing: 0.03em;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 3.9rem);
  line-height: 1.05;
  margin-bottom: 20px;
  color: var(--ink);
  letter-spacing: -0.03em;
  font-weight: 900;
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: 32px 12px 32px 12px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(255, 77, 109, 0.15);
  border: 4px solid #fff;
  transform: rotate(1.5deg);
  max-width: 480px;
  margin-top: 40px;
}

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

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  font-size: 0.95rem;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 6px 20px rgba(255, 77, 109, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 77, 109, 0.35);
}

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

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

/* ---------- 标签 / 标题 ---------- */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 77, 109, 0.12);
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 14px;
  color: var(--ink);
  letter-spacing: -0.02em;
  font-weight: 900;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  line-height: 1.8;
}

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

.category-card {
  border-radius: 28px 8px 28px 8px;
  padding: 32px 28px;
  background: #fff;
  border: 1px solid rgba(255, 77, 109, 0.08);
  box-shadow: 0 4px 18px rgba(255, 77, 109, 0.05);
  transition: transform 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.category-card::after {
  content: '';
  position: absolute;
  right: -20px;
  top: -20px;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(255, 182, 193, 0.3), transparent 70%);
  border-radius: 50%;
}

.category-card:hover {
  transform: translateY(-6px) rotate(-0.5deg);
  box-shadow: 0 12px 32px rgba(255, 77, 109, 0.12);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.3rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 77, 109, 0.2);
}

.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}

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

/* ---------- 特性快 ---------- */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-image {
  border-radius: 40px 10px 40px 10px;
  overflow: hidden;
  box-shadow: 0 16px 44px rgba(255, 77, 109, 0.12);
  border: 3px solid #fff;
  transform: rotate(-1deg);
}

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

.feature-text {
  font-size: 1rem;
  line-height: 1.8;
}

.feature-text p {
  opacity: 0.75;
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  margin-top: 16px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.feature-list li::before {
  content: '✓';
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

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

.stat-item {
  padding: 32px 20px;
  border-radius: 28px 8px 28px 8px;
  background: #fff;
  border: 1px solid rgba(255, 77, 109, 0.08);
  box-shadow: 0 4px 16px rgba(255, 77, 109, 0.05);
  position: relative;
  transition: transform 0.2s;
}

.stat-item:hover {
  transform: translateY(-4px);
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.65;
  margin-top: 6px;
  font-weight: 500;
}

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

.content-wall-item {
  border-radius: 28px 8px 28px 8px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(255, 77, 109, 0.08);
  transition: transform 0.25s, box-shadow 0.25s;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(255, 77, 109, 0.12);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 3px solid var(--primary-light);
}

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

.content-wall-body h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  font-weight: 800;
  color: var(--ink);
}

.content-wall-body p {
  font-size: 0.9rem;
  opacity: 0.7;
  line-height: 1.6;
}

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

.faq-item {
  border: 1px solid rgba(255, 77, 109, 0.1);
  border-radius: 18px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  transition: box-shadow 0.2s;
}

.faq-item:hover {
  box-shadow: 0 4px 16px rgba(255, 77, 109, 0.07);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--ink);
  font-size: 0.98rem;
  position: relative;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--primary);
  transition: transform 0.3s;
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.72;
  line-height: 1.75;
  font-size: 0.95rem;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: 36px 12px 36px 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  box-shadow: 0 16px 48px rgba(255, 77, 109, 0.28);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  left: -20%;
  top: -40%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
}

.cta-banner::after {
  content: '';
  position: absolute;
  right: -10%;
  bottom: -60%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 12px;
  font-weight: 900;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, var(--bg), var(--bg-alt));
  border-top: 1px solid rgba(255, 77, 109, 0.08);
}

.site-footer .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  max-width: 300px;
}

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

.footer-brand p {
  opacity: 0.7;
  line-height: 1.7;
  font-size: 0.9rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--ink);
}

.footer-col a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 77, 109, 0.1);
  margin-top: 48px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.65;
}

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

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.72;
  line-height: 1.8;
}

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

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

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

  .main-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: #fffdf9;
    padding: 20px;
    box-shadow: 0 12px 32px rgba(255, 77, 109, 0.08);
    border-bottom: 1px solid rgba(255, 77, 109, 0.1);
  }

  .main-nav.open {
    display: flex;
    gap: 12px;
  }

  .main-nav a {
    padding: 10px 0;
    border-bottom: 1px dashed rgba(255, 77, 109, 0.15);
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    text-align: center;
    padding-top: 100px;
  }

  .hero-content {
    margin: 0 auto;
  }

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

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

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

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

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

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

  .footer-brand {
    margin: 0 auto;
  }

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

  .btn {
    justify-content: center;
  }

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

  .section {
    padding: 56px 0;
  }

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