/* 脱单锦鲤 tuodanjinli 产品官网 — 对齐 product_dazi 信息架构 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #fb7185;
  --primary-dark: #f43f5e;
  --secondary: #fbbf24;
  --accent: #f97316;
  --success: #34d399;
  --dark: #1c1917;
  --gray-900: #292524;
  --gray-800: #44403c;
  --gray-700: #78716c;
  --gray-600: #a8a29e;
  --gray-400: #d6d3d1;
  --gray-200: #e7e5e4;
  --gray-100: #fafaf9;
  --white: #fff;
  --shadow: 0 8px 32px rgba(28, 25, 23, 0.1);
  --shadow-lg: 0 16px 48px rgba(244, 63, 94, 0.15);
  --radius: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: linear-gradient(165deg, #fff1f2 0%, #ffedd5 40%, #fecdd3 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body.page-inner {
  background: linear-gradient(135deg, #fff7ed 0%, #ffe4e6 50%, #fed7aa 100%);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(251, 113, 133, 0.25);
  padding: 16px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 8px 28px rgba(251, 113, 133, 0.12);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--dark);
  text-decoration: none;
}

.nav-logo {
  width: 44px;
  height: 44px;
  background: url("../images/logo.svg") no-repeat center;
  background-size: contain;
  border-radius: 12px;
  flex-shrink: 0;
  box-shadow: var(--shadow);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 22px;
  align-items: center;
}

.nav-menu a {
  color: var(--gray-800);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary-dark);
}

.btn-primary-nav {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  padding: 12px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: 0 8px 22px rgba(244, 63, 94, 0.35);
  white-space: nowrap;
}

.btn-primary-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(249, 115, 22, 0.4);
}

.hero {
  padding: 118px 0 76px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='48' height='48' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23fb7185' fill-opacity='0.06' d='M24 4l4 8 8 4-8 4-4 8-4-8-8-4 8-4z'/%3E%3C/svg%3E");
  z-index: 0;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--primary-dark);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
  border: 1px solid rgba(251, 113, 133, 0.35);
  box-shadow: var(--shadow);
}

.hero-title {
  font-size: clamp(2.1rem, 4.2vw, 3rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.15;
  margin-bottom: 14px;
}

.hero-title .gradient-text {
  background: linear-gradient(90deg, var(--primary-dark), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.12rem;
  color: var(--gray-800);
  margin-bottom: 16px;
}

.hero-description {
  font-size: 1rem;
  color: var(--gray-700);
  margin-bottom: 28px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
  color: var(--white);
  padding: 14px 28px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(244, 63, 94, 0.35);
}

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

.btn-outline {
  background: var(--white);
  color: var(--dark);
  border: 2px solid rgba(251, 113, 133, 0.45);
  padding: 12px 24px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-outline:hover {
  border-color: var(--primary-dark);
  color: var(--primary-dark);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  max-width: 400px;
}

.stat-item .stat-number {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--dark);
}

.stat-item .stat-label {
  font-size: 0.78rem;
  color: var(--gray-700);
}

.hero-visual {
  position: relative;
}

.phone-mockup {
  max-width: 320px;
  margin-left: auto;
}

.phone-frame {
  background: linear-gradient(145deg, #1c1917, #44403c);
  border-radius: 28px;
  padding: 14px;
  box-shadow: var(--shadow-lg);
}

.phone-screen {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  min-height: 420px;
}

.app-top {
  padding: 14px 16px;
  background: linear-gradient(135deg, #fda4af, #fb923c);
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.app-chip {
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.25);
  padding: 4px 10px;
  border-radius: 999px;
}

.app-body {
  padding: 16px;
}

.app-card {
  background: var(--gray-100);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
  border: 1px solid var(--gray-200);
}

.app-card h4 {
  font-size: 0.8rem;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.app-card .title {
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.app-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.app-meta span {
  font-size: 0.72rem;
  background: var(--white);
  padding: 4px 8px;
  border-radius: 8px;
  color: var(--gray-800);
  border: 1px solid var(--gray-200);
}

.app-row {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.app-pill {
  flex: 1;
  text-align: center;
  padding: 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  background: linear-gradient(135deg, #fef3c7, #ffedd5);
  color: #9a3412;
}

.features {
  padding: 84px 0;
  background: var(--white);
}

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

.features-header {
  text-align: center;
  margin-bottom: 52px;
}

.features-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}

.features-subtitle {
  color: var(--gray-700);
  max-width: 560px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 26px;
}

.feature-card {
  background: var(--gray-100);
  padding: 30px 26px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(251, 113, 133, 0.45);
  background: var(--white);
}

.feature-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(251, 113, 133, 0.25), rgba(251, 191, 36, 0.35));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.85rem;
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.feature-description {
  color: var(--gray-700);
  font-size: 0.94rem;
}

.stats {
  padding: 68px 0;
  background: linear-gradient(180deg, #fff7ed, #fff);
}

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
}

.stat-card {
  text-align: center;
  padding: 26px 18px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid rgba(251, 113, 133, 0.2);
  box-shadow: var(--shadow);
}

.stat-card .stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.stat-card .stat-label {
  font-size: 0.9rem;
  color: var(--gray-700);
  font-weight: 600;
}

.cta {
  padding: 84px 0;
  background: linear-gradient(135deg, #f43f5e, #ea580c);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='3' cy='3' r='1.5' fill='%23fff'/%3E%3C/svg%3E");
}

.cta-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: 1.95rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-description {
  font-size: 1.05rem;
  opacity: 0.95;
  margin-bottom: 28px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.cta .btn-primary {
  background: var(--white);
  color: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.65);
  color: var(--white);
  background: transparent;
}

.cta .btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--white);
}

.footer {
  padding: 46px 0 22px;
  background: var(--gray-900);
  color: var(--gray-400);
}

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

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
  margin-bottom: 28px;
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: 12px;
  font-size: 1.02rem;
}

.footer-section p {
  margin-bottom: 8px;
  font-size: 0.88rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fda4af;
}

.footer-bottom {
  text-align: center;
  padding-top: 22px;
  border-top: 1px solid var(--gray-800);
  font-size: 0.78rem;
  color: var(--gray-600);
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.animate {
  opacity: 1;
  transform: translateY(0);
}

.page-hero {
  padding: 108px 0 44px;
  text-align: center;
}

.page-hero h1 {
  color: var(--dark);
  font-size: clamp(1.7rem, 3.8vw, 2.35rem);
  font-weight: 800;
  margin-bottom: 10px;
}

.page-hero p {
  color: var(--gray-700);
  max-width: 620px;
  margin: 0 auto;
}

.content-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 36px 24px 76px;
}

.content-card {
  background: var(--white);
  border: 1px solid rgba(251, 113, 133, 0.2);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  margin-bottom: 20px;
  color: var(--gray-800);
  box-shadow: var(--shadow);
}

.content-card h2 {
  color: var(--dark);
  font-size: 1.28rem;
  margin-bottom: 10px;
}

.content-card ul {
  margin-left: 1.2rem;
  color: var(--gray-700);
}

.content-card li {
  margin-bottom: 7px;
}

.content-card .btn-outline {
  border-color: rgba(244, 63, 94, 0.45);
  color: var(--primary-dark);
}

.content-card .btn-outline:hover {
  background: rgba(251, 113, 133, 0.1);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.price-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 26px;
  color: var(--gray-800);
  box-shadow: var(--shadow);
}

.price-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(251, 113, 133, 0.2);
}

.price-card h3 {
  color: var(--dark);
  margin-bottom: 6px;
}

.price-card .price {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin: 10px 0;
}

.price-card .price-unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-700);
}

.price-card .price-note {
  font-size: 0.82rem;
  color: var(--gray-700);
  line-height: 1.5;
  margin-top: -4px;
  margin-bottom: 12px;
}

.price-card ul {
  list-style: disc;
  margin: 0 0 0 1.1rem;
  padding: 0;
  font-size: 0.9rem;
  color: var(--gray-700);
}

.price-card li {
  margin-bottom: 6px;
}

.purchase-contact {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px 20px;
  margin-top: 6px;
  align-items: baseline;
  max-width: 520px;
}

.purchase-contact dt {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--gray-700);
  margin: 0;
}

.purchase-contact dd {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.purchase-contact a {
  color: var(--primary-dark);
  text-decoration: none;
}

.purchase-contact a:hover {
  text-decoration: underline;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28, 25, 23, 0.72);
  backdrop-filter: blur(5px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
}

.modal-overlay.is-open {
  display: flex;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius);
  max-width: 430px;
  width: 100%;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
  font-size: 1.1rem;
  color: var(--dark);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.45rem;
  cursor: pointer;
  color: var(--gray-700);
  line-height: 1;
}

.modal-body {
  padding: 20px;
  text-align: center;
  color: var(--gray-700);
}

.modal-body .qr-placeholder {
  width: 176px;
  height: 176px;
  margin: 0 auto 14px;
  background: var(--gray-100);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  color: var(--gray-600);
  border: 2px dashed var(--gray-400);
  padding: 12px;
}

@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .hero-stats {
    margin: 0 auto;
  }

  .phone-mockup {
    margin: 0 auto;
  }

  .nav-menu {
    display: none;
  }
}