/* ============================================
   Glassmorphism 玻璃拟态风格 - 锦玥图像引擎
   ============================================ */

/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  background-attachment: fixed;
  min-height: 100vh;
  color: #1e293b;
  overflow-x: hidden;
}

/* 背景装饰光斑 */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(126, 166, 255, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(167, 139, 250, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255, 187, 214, 0.2) 0%, transparent 50%);
  z-index: -1;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(1deg); }
  66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

/* ============================================
   玻璃拟态核心样式
   ============================================ */

.glass {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
}

.glass-light {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 4px 24px rgba(31, 38, 135, 0.25);
}

.glass-dark {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.glass-card {
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 6px 28px rgba(31, 38, 135, 0.3);
  border-radius: 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(31, 38, 135, 0.4);
}

/* ============================================
   顶部导航栏
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 40px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 24px rgba(31, 38, 135, 0.15);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: white;
}

.logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 18px;
  font-weight: 700;
  color: white;
  letter-spacing: -0.5px;
}

.logo-subtitle {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 10px 18px;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 12px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.15);
  color: white;
}

.nav-link.active {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ============================================
   按钮样式
   ============================================ */

.btn {
  padding: 12px 28px;
  border: none;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #7EA6FF 0%, #A78BFA 100%);
  color: white;
  box-shadow: 0 4px 20px rgba(126, 166, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(126, 166, 255, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

/* ============================================
   主内容区
   ============================================ */

.main {
  padding-top: 100px;
  padding-bottom: 80px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  color: white;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 64px;
  font-weight: 800;
  color: white;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

.hero-title .gradient {
  background: linear-gradient(135deg, #FFCD70 0%, #FFBBD6 50%, #A78BFA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 60px;
  justify-content: center;
}

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

.hero-stat-value {
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   工具卡片网格
   ============================================ */

.section {
  margin-bottom: 80px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: white;
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 6px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.tool-card {
  padding: 28px;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #7EA6FF, #A78BFA, #FFBBD6);
  opacity: 0;
  transition: opacity 0.3s;
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.tool-title {
  font-size: 18px;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-badge {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 100px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tool-badge.new {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
}

.tool-badge.pro {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
}

.tool-badge.hot {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}

.tool-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
  margin-bottom: 16px;
}

.tool-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  transition: gap 0.2s;
}

.tool-card:hover .tool-arrow {
  gap: 10px;
  color: white;
}

/* ============================================
   特性区域
   ============================================ */

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

.feature-card {
  padding: 36px;
  text-align: center;
}

.feature-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(126, 166, 255, 0.3), rgba(167, 139, 250, 0.3));
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  color: white;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
}

/* ============================================
   页脚
   ============================================ */

.footer {
  padding: 60px 40px 40px;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
}

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

.footer-brand {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.7;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

/* ============================================
   响应式
   ============================================ */

@media (max-width: 1024px) {
  .hero-title { font-size: 48px; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .header { padding: 12px 20px; }
  .nav { display: none; }
  .container { padding: 0 20px; }
  .hero { padding: 40px 0; }
  .hero-title { font-size: 36px; letter-spacing: -1px; }
  .hero-subtitle { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .tools-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}