/* ===== 创见 · 基础样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #8b5cf6;
  --accent: #06b6d4;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --bg-dark: #0b1120;
  --bg-card: rgba(15, 23, 42, 0.65);
  --border-glass: rgba(255, 255, 255, 0.12);
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: all 0.3s ease;
  background: transparent;
}

.navbar.scrolled {
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: 1px;
}

.logo span {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.95rem;
  transition: all 0.2s;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 8px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s;
  box-shadow: var(--shadow-lg);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  white-space: nowrap;
}

.nav-dropdown-sep {
  height: 1px;
  background: var(--border-glass);
  margin: 6px 0;
}

.nav-welcome {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.nav-time {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  padding: 4px 10px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(11, 17, 32, 0.7) 70%, #0b1120 100%);
  z-index: 1;
}

.hero-container {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.gradient-text {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-primary {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.55);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid var(--border-glass);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.4rem;
  color: var(--text-secondary);
  animation: bounce 2s infinite;
  z-index: 2;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== 通用区块 ===== */
section {
  padding: 100px 0;
  position: relative;
  z-index: 2;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 48px;
  font-size: 1.05rem;
}

/* ===== 功能卡片 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  display: block;
  padding: 28px 24px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
}

.coming-soon {
  opacity: 0.75;
  pointer-events: none;
}

.badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(99, 102, 241, 0.25);
  color: #a5b4fc;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
}

/* ===== 产品区 ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.product-card {
  padding: 24px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.4);
}

.product-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.product-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 600;
}

.product-card.locked {
  opacity: 0.7;
}

.lock-hint {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.8rem;
  color: #a5b4fc;
}

/* ===== 联系 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 28px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-info h3 {
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.token-stats {
  margin-top: 20px !important;
  font-size: 0.9rem;
  color: #64748b !important;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 12px 16px;
  color: #fff;
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
}

.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}

/* ===== 页脚 ===== */
.footer {
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 0.9rem;
  position: relative;
  z-index: 2;
}

.footer-note {
  margin-top: 6px;
  font-size: 0.8rem;
  opacity: 0.7;
}

/* ===== Toast ===== */
#toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(15, 23, 42, 0.95);
  color: #fff;
  padding: 12px 24px;
  border-radius: 999px;
  border: 1px solid var(--border-glass);
  font-size: 0.95rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  z-index: 9999;
  backdrop-filter: blur(12px);
}

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

/* ===== 悬浮聊天 ===== */
#cw-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9990;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: var(--gradient-1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.45);
  transition: transform 0.25s, box-shadow 0.25s;
}

#cw-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.6);
}

#cw-btn svg {
  width: 26px;
  height: 26px;
}

/* ===== 访问徽章 ===== */
#cmVisitorBadge {
  position: fixed;
  left: 16px;
  bottom: 16px;
  z-index: 9998;
  background: rgba(17, 24, 39, 0.85);
  color: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  font: 13px/1.2 var(--font);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  gap: 6px;
  user-select: none;
  pointer-events: none;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11, 17, 32, 0.96);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-glass);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-welcome {
    display: none;
  }

  .hamburger {
    display: flex;
  }

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

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

@media (max-width: 600px) {
  .hero-title {
    font-size: 2rem;
  }

  section {
    padding: 70px 0;
  }
}