@charset "UTF-8";

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

:root {
  --gold: #C9962B;
  --gold-light: #E8C878;
  --gold-dark: #A67C1A;
  --bg: #F5EBDC;
  --bg-light: #FAF3E8;
  --bg-dark: #2C2419;
  --brown: #3A2F1F;
  --brown-light: #6B5D48;
  --text: #3A2F1F;
  --text-light: #8B7D6B;
  --card-bg: #FDF9F2;
  --card-border: #E5D5B8;
  --max-width: 1200px;
}

html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: var(--bg);
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

a {
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  text-decoration: none;
  color: inherit;
}

a:focus, a:active {
  outline: none;
  -webkit-tap-highlight-color: transparent;
  background: none;
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg);
  border-bottom: 1px solid var(--card-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--brown);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-brand span {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 44px;
}

.nav-links a {
  color: var(--brown-light);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--gold);
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--gold);
  color: #fff;
  padding: 9px 20px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 13px;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-nav:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  font-size: 24px;
  color: var(--brown);
  cursor: pointer;
}

.hero {
  padding: 120px 0 80px;
  background: var(--bg);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content {
  max-width: 520px;
}

.hero-badges {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-badge {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--brown-light);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--gold);
  margin-bottom: 28px;
  letter-spacing: 1px;
}

.hero-title span {
  color: var(--brown);
}

.hero-desc {
  font-size: 15px;
  color: var(--brown-light);
  line-height: 1.9;
  margin-bottom: 36px;
  max-width: 460px;
}

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--gold);
  color: #fff;
  padding: 14px 32px;
  border-radius: 24px;
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-hero:hover {
  background: var(--gold-dark);
  box-shadow: 0 6px 20px rgba(201, 150, 43, 0.35);
  transform: translateY(-2px);
}

.btn-hero i {
  font-size: 18px;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 280px;
  height: 560px;
  background: var(--brown);
  border-radius: 36px;
  padding: 10px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  overflow: hidden;
  background: #fff;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section {
  padding: 80px 0;
}

.section-header {
  margin-bottom: 48px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 14px;
  color: var(--text-light);
}

.features {
  background: var(--bg);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card-bg);
}

.feature-card {
  padding: 36px 32px;
  border-right: 1px solid var(--card-border);
  transition: background 0.3s;
}

.feature-card:last-child {
  border-right: none;
}

.feature-card:hover {
  background: var(--bg-light);
}

.feature-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--gold);
  opacity: 0.6;
  margin-bottom: 16px;
}

.feature-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-box i {
  font-size: 20px;
  color: #fff;
}

.feature-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.8;
}

.faq {
  background: var(--bg);
}

.faq-list {
  max-width: 720px;
}

.faq-item {
  border: 1px solid var(--card-border);
  border-radius: 10px;
  margin-bottom: 14px;
  background: var(--card-bg);
  overflow: hidden;
  transition: all 0.3s;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--brown);
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--bg-light);
}

.faq-toggle {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  transition: transform 0.3s;
}

.faq-toggle i {
  font-size: 14px;
  color: #fff;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 28px 22px;
  font-size: 14px;
  color: var(--brown-light);
  line-height: 1.9;
  border-top: 1px solid var(--card-border);
  padding-top: 22px;
}

.download-section {
  background: linear-gradient(135deg, #3A2F1F 0%, #2C2419 100%);
  color: #fff;
}

.download-inner {
  text-align: center;
  padding: 80px 0;
}

.download-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.download-title .highlight {
  color: var(--gold-light);
}

.download-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 36px;
}

.download-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 24px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn-download img {
  width: 22px;
  height: 22px;
  filter: brightness(0) invert(1);
}

.btn-download-primary {
  background: var(--gold);
  color: #fff;
}

.btn-download-primary:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
}

.btn-download-secondary {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-download-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.footer {
  background: var(--bg-dark);
  padding: 40px 0 28px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--gold-light);
}

.footer-copy {
  color: rgba(255, 255, 255, 0.35);
  font-size: 13px;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

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

.modal {
  background: var(--card-bg);
  border-radius: 16px;
  width: 380px;
  max-width: 90%;
  padding: 36px 32px 32px;
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brown-light);
  font-size: 18px;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--card-border);
  color: var(--brown);
}

.modal-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 6px;
}

.modal-subtitle {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 28px;
}

.modal-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-option {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-light);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.25s ease;
  color: inherit;
}

.modal-option:hover {
  background: var(--bg);
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 150, 43, 0.15);
}

.modal-option-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.modal-option-icon img {
  width: 26px;
  height: 26px;
  filter: brightness(0) invert(1);
}

.modal-option-info {
  flex: 1;
}

.modal-option-label {
  font-size: 16px;
  font-weight: 700;
  color: var(--brown);
  letter-spacing: 1px;
}

.modal-option-meta {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 3px;
}

.modal-option-arrow {
  color: var(--text-light);
  font-size: 18px;
  transition: transform 0.2s;
}

.modal-option:hover .modal-option-arrow {
  transform: translateX(4px);
  color: var(--gold);
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .hero-title {
    font-size: 38px;
  }

  .hero-visual {
    order: -1;
  }

  .phone-frame {
    width: 240px;
    height: 480px;
  }

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

  .feature-card {
    border-right: none;
    border-bottom: 1px solid var(--card-border);
  }

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

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .section-title {
    font-size: 26px;
  }

  .download-title {
    font-size: 26px;
  }

  .container {
    padding: 0 16px;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-badges {
    gap: 8px;
  }

  .hero-badge {
    font-size: 11px;
    padding: 5px 10px;
  }

  .download-btns {
    flex-direction: column;
    align-items: center;
  }

  .btn-download {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

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

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .modal {
    padding: 28px 24px 24px;
  }

  .section {
    padding: 60px 0;
  }
}