/* ==========================================================================
   照片情侣配对AI版 (Photo Pairing AI) 官方网站样式表
   域名: cp.paohome.cn
   设计风格: 浪漫高颜值 · 柔和渐变 · 极简轻科技
   ========================================================================== */

:root {
  --primary-pink: #ec4899;
  --primary-purple: #8b5cf6;
  --gradient-love: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
  --gradient-soft: linear-gradient(135deg, #fdf2f8 0%, #ede9fe 50%, #f0fdf4 100%);
  --bg-page: #0f111a;
  --bg-card: rgba(26, 29, 45, 0.75);
  --border-card: rgba(236, 72, 153, 0.2);
  --border-card-hover: rgba(236, 72, 153, 0.5);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --radius-full: 9999px;

  --shadow-glow: 0 10px 40px -10px rgba(236, 72, 153, 0.35);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  position: relative;
  overflow-x: hidden;
  background-color: var(--bg-page);
  min-height: 100vh;
}

.ambient-light {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: 
    radial-gradient(circle at 25% 20%, rgba(236, 72, 153, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 75% 30%, rgba(139, 92, 246, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(244, 114, 182, 0.1) 0%, transparent 50%);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(15, 17, 26, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-love);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
}

.brand-text p {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.btn-nav {
  padding: 10px 22px;
  background: var(--gradient-love);
  color: #fff !important;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: transform 0.2s ease;
}

.btn-nav:hover {
  transform: translateY(-2px);
}

/* Hero */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: rgba(236, 72, 153, 0.12);
  border: 1px solid rgba(236, 72, 153, 0.3);
  color: #f472b6;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #f472b6 0%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 40px;
}

/* 核心二维码与体验卡片 */
.experience-card {
  max-width: 520px;
  margin: 0 auto 70px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(15px);
  text-align: center;
}

.qr-box {
  width: 220px;
  height: 220px;
  margin: 0 auto 20px;
  background: #ffffff;
  padding: 12px;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 6px;
}

.qr-hint {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-launch {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  background: var(--gradient-love);
  color: #fff;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
}

.btn-launch:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(236, 72, 153, 0.5);
}

.btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-main);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 功能特色网格 */
.features-section {
  padding: 60px 0 90px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all 0.25s ease;
}

.feature-box:hover {
  transform: translateY(-4px);
  border-color: var(--border-card-hover);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.feature-box h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fce7f3;
}

.feature-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 报告示例弹窗 Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  max-width: 480px;
  width: 100%;
  position: relative;
}

.modal-img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  display: block;
}

.modal-close {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ff4081;
  color: #fff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Toast */
.toast-msg {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(30, 41, 67, 0.95);
  border: 1px solid var(--border-card-hover);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  z-index: 2000;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  opacity: 0;
}

.toast-msg.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px 0 28px;
  background: #090b12;
  color: var(--text-dim);
  font-size: 0.85rem;
  text-align: center;
}

.site-footer a {
  color: var(--text-dim);
  text-decoration: none;
}

.site-footer a:hover {
  color: #f472b6;
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .features-grid { grid-template-columns: 1fr; }
}