/* ============================================
   暖心屿 NuanXinYu - Wellness Subscription
   Warm Oriental Style with Purple-Blue Gradient
   ============================================ */

/* ----- CSS Variables ----- */
:root {
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark: #5b21b6;
  --secondary: #ec4899;
  --secondary-light: #f472b6;
  --accent: #f59e0b;
  --gradient-main: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-warm: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-purple: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
  --gradient-blue: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-hero: linear-gradient(135deg, #1a0a2e 0%, #2d1b69 30%, #667eea 70%, #764ba2 100%);
  --bg-light: #faf5ff;
  --bg-card: #ffffff;
  --bg-dark: #1a0a2e;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --text-white: #ffffff;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition: all 0.3s ease;
  --nav-height: 70px;
}

/* ----- Reset & Base ----- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul { list-style: none; }

img { max-width: 100%; height: auto; }

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.3;
  font-weight: 700;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* ----- Navigation ----- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(102, 126, 234, 0.3);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-white);
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  backdrop-filter: blur(4px);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255,255,255,0.15);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}

.lang-toggle:hover {
  background: rgba(255,255,255,0.25);
}

.nav-btn {
  background: #fff;
  color: var(--primary);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.nav-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,255,255,0.3);
}

.nav-btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.5);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

.nav-btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* ----- Hero Section ----- */
.hero {
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(124,58,237,0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 30%, rgba(236,72,153,0.1) 0%, transparent 50%),
              radial-gradient(circle at 50% 80%, rgba(102,126,234,0.1) 0%, transparent 50%);
  pointer-events: none;
}

/* Chinese decorative elements */
.hero-deco {
  position: absolute;
  font-size: 8rem;
  opacity: 0.04;
  color: #fff;
  font-family: serif;
  pointer-events: none;
  user-select: none;
}

.hero-deco-1 { top: 10%; left: 5%; transform: rotate(-15deg); }
.hero-deco-2 { bottom: 15%; right: 8%; transform: rotate(10deg); }
.hero-deco-3 { top: 40%; right: 15%; font-size: 4rem; opacity: 0.025; }

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-size: 3.5rem;
  color: #fff;
  margin-bottom: 1.2rem;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font-sans);
}

.btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 15px rgba(255,255,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255,255,255,0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.btn-gradient {
  background: var(--gradient-purple);
  color: #fff;
  box-shadow: 0 4px 15px rgba(124,58,237,0.4);
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124,58,237,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-sm {
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 1.1rem 2.5rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ----- Features Section ----- */
.features {
  padding: 5rem 2rem;
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  font-size: 1.5rem;
}

.feature-icon.purple { background: rgba(124,58,237,0.1); color: var(--primary); }
.feature-icon.pink { background: rgba(236,72,153,0.1); color: var(--secondary); }
.feature-icon.amber { background: rgba(245,158,11,0.1); color: var(--accent); }
.feature-icon.teal { background: rgba(20,184,166,0.1); color: #14b8a6; }

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ----- AI Advisors Section ----- */
.advisors {
  padding: 5rem 2rem;
  background: #fff;
}

.advisors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.advisor-card {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.advisor-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.advisor-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-display);
}

.advisor-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.advisor-card .advisor-title {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.advisor-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ----- CTA Section ----- */
.cta {
  padding: 5rem 2rem;
  background: var(--gradient-main);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '✦';
  position: absolute;
  top: -20px;
  left: 10%;
  font-size: 12rem;
  opacity: 0.04;
  color: #fff;
}

.cta h2 {
  font-size: 2.5rem;
  color: #fff;
  margin-bottom: 1rem;
}

.cta p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

/* ----- Footer ----- */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 3rem 2rem 1.5rem;
}

.footer-content {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ============================================
   AI Chat Page
   ============================================ */
.chat-page {
  display: flex;
  height: calc(100vh - var(--nav-height));
  margin-top: var(--nav-height);
}

.chat-sidebar {
  width: 280px;
  background: #fff;
  border-right: 1px solid var(--border-color);
  padding: 1.5rem;
  overflow-y: auto;
  flex-shrink: 0;
}

.chat-sidebar h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.advisor-select {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.advisor-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  background: var(--bg-light);
}

.advisor-option:hover {
  border-color: var(--primary-light);
}

.advisor-option.active {
  border-color: var(--primary);
  background: rgba(124,58,237,0.05);
}

.advisor-option .mini-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.advisor-option .advisor-info h4 {
  font-size: 0.9rem;
  margin-bottom: 0.1rem;
}

.advisor-option .advisor-info span {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.chat-message-count {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  text-align: center;
}

.chat-message-count .count {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.chat-message-count .count-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.chat-message-count .count-bar {
  width: 100%;
  height: 6px;
  background: #e5e7eb;
  border-radius: 3px;
  margin-top: 0.5rem;
  overflow: hidden;
}

.chat-message-count .count-bar-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-light);
}

.chat-header {
  padding: 1rem 1.5rem;
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-header .header-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.chat-header .header-info h4 {
  font-size: 1rem;
}

.chat-header .header-info span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.chat-messages {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  display: flex;
  gap: 10px;
  max-width: 75%;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.message.ai {
  align-self: flex-start;
}

.message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.message-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.message-content {
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  line-height: 1.6;
  position: relative;
}

.message.ai .message-content {
  background: #fff;
  box-shadow: var(--shadow-sm);
  border-top-left-radius: 4px;
}

.message.user .message-content {
  background: var(--gradient-main);
  color: #fff;
  border-top-right-radius: 4px;
}

.message-time {
  font-size: 0.7rem;
  color: var(--text-light);
  margin-top: 4px;
  display: block;
}

.message.user .message-time {
  text-align: right;
  color: rgba(255,255,255,0.6);
}

.chat-input-area {
  padding: 1rem 1.5rem;
  background: #fff;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 10px;
  align-items: center;
}

.chat-input-area input {
  flex: 1;
  padding: 0.8rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.92rem;
  outline: none;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.chat-input-area input:focus {
  border-color: var(--primary-light);
}

.chat-input-area button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--gradient-main);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.chat-input-area button:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(102,126,234,0.4);
}

.chat-input-area button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.chat-welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
}

.chat-welcome .welcome-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.chat-welcome h3 {
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.chat-welcome p {
  font-size: 0.95rem;
  max-width: 400px;
}

/* Upgrade prompt in chat */
.upgrade-prompt {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(124,58,237,0.05);
  border: 1px solid var(--primary-light);
  border-radius: var(--radius-sm);
  text-align: center;
}

.upgrade-prompt p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* ============================================
   Pricing Page
   ============================================ */
.pricing-page {
  padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.pricing-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 30px rgba(124,58,237,0.15);
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-main);
  color: #fff;
  padding: 0.3rem 1.5rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

.pricing-badge {
  display: inline-block;
  background: var(--gradient-main);
  color: #fff;
  padding: 0.3rem 1rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
  align-self: flex-start;
}

.pricing-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.pricing-card .price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.pricing-card .price-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

.pricing-features {
  margin-bottom: 2rem;
  flex: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.6rem 0;
  font-size: 0.9rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li .check {
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

.pricing-features li .cross {
  color: var(--text-light);
  flex-shrink: 0;
}

.pricing-card .btn {
  margin-top: auto;
}

.pricing-guarantee {
  text-align: center;
  padding: 2rem;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  max-width: 600px;
  margin: 0 auto;
}

.pricing-guarantee .guarantee-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.pricing-guarantee h3 {
  font-size: 1.2rem;
  margin-bottom: 0.3rem;
}

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

/* PayPal Button Container */
#paypal-button-container {
  margin-top: 1rem;
  min-height: 45px;
}

/* ============================================
   Articles Page
   ============================================ */
.articles-page {
  padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.articles-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  justify-content: center;
}

.filter-section {
  margin-bottom: 0.75rem;
  text-align: center;
}

.filter-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.country-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  justify-content: center;
}

.article-count-bar {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.article-count-bar span:first-child {
  font-weight: 700;
  color: var(--primary);
  font-size: 1rem;
}

.country-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  background: rgba(124,58,237,0.08);
  color: var(--primary);
  margin-left: 0.3rem;
  font-weight: 500;
}

.premium-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  background: rgba(245,158,11,0.12);
  color: #b45309;
  margin-left: 0.3rem;
  font-weight: 500;
}

.filter-btn {
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  border: 1.5px solid var(--border-color);
  background: #fff;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(124,58,237,0.05);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid var(--border-color);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-card-image {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.article-card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gradient-main);
  color: #fff;
  padding: 0.25rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.article-card-premium {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--accent);
  color: #fff;
  padding: 0.25rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.article-card-body {
  padding: 1.5rem;
}

.article-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.article-card-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ============================================
   Article Detail Page
   ============================================ */
.article-detail-page {
  padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
  max-width: 800px;
  margin: 0 auto;
}

.article-detail-page .article-header {
  margin-bottom: 2rem;
}

.article-detail-page .article-header .tag {
  display: inline-block;
  background: var(--gradient-main);
  color: #fff;
  padding: 0.25rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.article-detail-page .article-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.article-detail-page .article-header .meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.article-detail-page .article-body {
  line-height: 1.9;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.article-detail-page .article-body p {
  margin-bottom: 1.2rem;
}

.article-detail-page .article-body h2 {
  font-size: 1.4rem;
  margin: 2rem 0 1rem;
  color: var(--primary-dark);
}

.article-detail-page .article-body h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.8rem;
  color: var(--primary);
}

.article-detail-page .article-body ul {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.article-detail-page .article-body ul li {
  margin-bottom: 0.5rem;
  list-style: disc;
}

.article-locked {
  position: relative;
}

.article-locked::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to bottom, transparent, var(--bg-light));
  pointer-events: none;
}

.article-locked .upgrade-notice {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem;
  background: #fff;
  border: 2px solid var(--primary-light);
  border-radius: var(--radius-lg);
  margin-top: -1rem;
}

.article-locked .upgrade-notice .lock-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.article-locked .upgrade-notice h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.article-locked .upgrade-notice p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ============================================
   Auth Pages (Login / Signup)
   ============================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-hero);
  padding: 6rem 2rem 2rem;
}

.auth-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-xl);
}

.auth-card .auth-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-card .auth-logo h2 {
  font-size: 1.5rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-card .auth-logo p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.3rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  outline: none;
  transition: var(--transition);
  font-family: var(--font-sans);
  background: var(--bg-light);
}

.form-group input:focus {
  border-color: var(--primary-light);
  background: #fff;
}

.form-group .error-text {
  color: #ef4444;
  font-size: 0.8rem;
  margin-top: 0.3rem;
  display: none;
}

.form-group.error input {
  border-color: #ef4444;
}

.form-group.error .error-text {
  display: block;
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.2rem;
  font-size: 0.88rem;
}

.form-options label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  cursor: pointer;
}

.form-options a {
  color: var(--primary);
  font-weight: 500;
}

.form-options a:hover {
  text-decoration: underline;
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.auth-footer a {
  color: var(--primary);
  font-weight: 600;
}

.auth-footer a:hover {
  text-decoration: underline;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
}

.form-checkbox input {
  margin-top: 3px;
}

/* ============================================
   Dashboard Page
   ============================================ */
.dashboard-page {
  padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.dashboard-card.full-width {
  grid-column: 1 / -1;
}

.dashboard-card h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.profile-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
}

.profile-info h4 {
  font-size: 1.1rem;
}

.profile-info p {
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.profile-info .badge {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.3rem;
}

.badge-free { background: #f3f4f6; color: var(--text-secondary); }
.badge-premium { background: rgba(124,58,237,0.1); color: var(--primary); }
.badge-yearly { background: rgba(245,158,11,0.1); color: #d97706; }

.subscription-info {
  display: grid;
  gap: 0.8rem;
}

.subscription-item {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.subscription-item .label {
  color: var(--text-secondary);
}

.subscription-item .value {
  font-weight: 600;
}

.dashboard-actions {
  display: grid;
  gap: 0.8rem;
}

.dashboard-actions .btn {
  width: 100%;
  justify-content: center;
}

.unlocked-articles {
  display: grid;
  gap: 0.8rem;
}

.unlocked-article-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.8rem;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.unlocked-article-item:hover {
  background: rgba(124,58,237,0.05);
}

.unlocked-article-item .article-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.unlocked-article-item .article-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.unlocked-article-item .article-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ============================================
   Toast / Notification
   ============================================ */
.toast-container {
  position: fixed;
  top: calc(var(--nav-height) + 1rem);
  right: 1rem;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.9rem;
  animation: slideIn 0.3s ease;
  box-shadow: var(--shadow-lg);
  max-width: 360px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast.success { background: #10b981; }
.toast.error { background: #ef4444; }
.toast.info { background: var(--primary); }
.toast.warning { background: var(--accent); color: var(--text-primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ============================================
   Modal
   ============================================ */
.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: 10001;
  animation: fadeIn 0.2s ease;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 450px;
  width: 90%;
  box-shadow: var(--shadow-xl);
  animation: scaleIn 0.2s ease;
}

@keyframes scaleIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-content h3 {
  margin-bottom: 0.5rem;
}

.modal-content p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.92rem;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(124,58,237,0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Language-specific */
[data-lang="zh"] .lang-text-en { display: none; }
[data-lang="zh"] .lang-text-zh { display: inline; }
[data-lang="en"] .lang-text-en { display: inline; }
[data-lang="en"] .lang-text-zh { display: none; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--gradient-main);
    flex-direction: column;
    padding: 1rem;
    gap: 0.3rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 0.8rem;
  }

  .nav-actions .nav-btn,
  .nav-actions .nav-btn-outline {
    display: none;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero {
    padding: 5rem 1.5rem 3rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .chat-page {
    flex-direction: column;
  }

  .chat-sidebar {
    width: 100%;
    max-height: 200px;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .message {
    max-width: 90%;
  }

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

  .auth-card {
    padding: 2rem 1.5rem;
  }

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

  .article-detail-page .article-header h1 {
    font-size: 1.4rem;
  }

  .article-detail-page {
    padding-left: 1.2rem;
    padding-right: 1.2rem;
  }

  .pricing-page {
    padding-left: 1.2rem;
    padding-right: 1.2rem;
  }

  .cta h2 {
    font-size: 1.6rem;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .pricing-card {
    padding: 2rem 1.2rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .nav-logo span {
    display: none;
  }
}

/* ============================================
   Legal Pages (Privacy, Terms, FAQ)
   ============================================ */
.legal-page {
  padding: calc(var(--nav-height) + 2rem) 2rem 4rem;
  max-width: 860px;
  margin: 0 auto;
}

.legal-content {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.legal-section {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.legal-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.legal-section h2 {
  font-size: 1.3rem;
  color: var(--primary-dark);
  margin-bottom: 1rem;
  font-family: var(--font-display);
}

.legal-section p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: 0.8rem;
}

.legal-section ul {
  margin: 0.8rem 0;
  padding-left: 1.5rem;
}

.legal-section ul li {
  margin-bottom: 0.5rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-primary);
  list-style: disc;
}

.legal-section a {
  color: var(--primary);
  font-weight: 500;
}

.legal-section a:hover {
  text-decoration: underline;
}

.faq-content .legal-section {
  cursor: default;
}

.faq-content .legal-section:hover {
  background: rgba(124,58,237,0.02);
  border-radius: var(--radius-sm);
  padding-left: 1rem;
  padding-right: 1rem;
  margin-left: -1rem;
  margin-right: -1rem;
}

/* ============================================
   Join / Referral Modal
   ============================================ */
.join-modal {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  position: relative;
  animation: scaleIn 0.25s ease;
}

.join-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.join-close:hover {
  background: var(--bg-light);
  color: var(--text-primary);
}

.join-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.join-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.join-header h3 {
  font-size: 1.3rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.join-header p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.3rem;
}

.join-section {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0;
}

.join-section.join-active {
  display: flex;
}

/* Spinner */
.join-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(124,58,237,0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}


}

.join-country-badge {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--bg-light);
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--primary-light);
}

.join-note {
  font-size: 0.78rem;
  color: var(--text-light);
}

.join-unmatched-icon {
  font-size: 3rem;
}

.join-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
}

/* Option cards */
.join-options {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  width: 100%;
  margin-top: 0.5rem;
}

.join-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: var(--bg-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.join-option:hover {
  border-color: var(--primary-light);
  background: rgba(124,58,237,0.03);
}

.join-option-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.join-option-text {
  flex: 1;
}

.join-option-text strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.join-option-text span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.join-option-arrow {
  color: var(--text-light);
  font-size: 1.1rem;
}

/* Contact card */
.join-contact-card {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  width: 100%;
}

.contact-item {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.contact-value {
  color: var(--text-primary);
  font-weight: 600;
}

.contact-value a {
  color: var(--primary);
}

.contact-qr-placeholder {
  text-align: center;
  padding: 1.5rem;
  margin-top: 1rem;
  background: #fff;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
}

.contact-qr-placeholder .qr-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.contact-qr-placeholder p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Country grid */
.join-country-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  width: 100%;
  max-height: 300px;
  overflow-y: auto;
}

.join-country-btn {
  padding: 0.8rem 0.5rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: var(--transition);
  text-align: center;
}

.join-country-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(124,58,237,0.03);
}

/* Fallback modal */
.join-fallback-modal h3 {
  margin-bottom: 0.5rem;
}

.join-fallback-modal p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

/* Spinner */
.join-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(124,58,237,0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}


}

/* ============================================
   Join Page (join.html)
   ============================================ */

.join-hero {
  padding: calc(var(--nav-height) + 3rem) 2rem 3rem;
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.join-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(236,72,153,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.join-hero-content {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.join-hero h1 {
  font-size: 2.5rem;
  color: #fff;
  margin-bottom: 1rem;
}

.join-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}

.join-main { padding: 2rem; max-width: 600px; margin: -2rem auto 0; position: relative; z-index: 2; }
.join-main-card { background: var(--bg-card); border-radius: var(--radius-xl); padding: 2.5rem; box-shadow: var(--shadow-lg); border: 1px solid var(--border-color); text-align: center; }
.join-main-header { margin-bottom: 1.5rem; }
.join-main-icon { font-size: 3rem; margin-bottom: 0.5rem; }
.join-main-header h2 { font-size: 1.4rem; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.join-main-header p { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.3rem; }
.join-phase { display: none; flex-direction: column; align-items: center; gap: 1rem; padding: 1rem 0; }
.join-phase-active { display: flex; }
.join-phase-spinner { width: 40px; height: 40px; border: 3px solid rgba(124,58,237,0.2); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; }
.join-phase p { color: var(--text-secondary); font-size: 0.95rem; }
.join-phase-result { display: flex; align-items: center; gap: 0.8rem; font-size: 1.5rem; font-weight: 700; background: var(--bg-light); padding: 1rem 2rem; border-radius: var(--radius-md); border: 2px solid var(--primary-light); }
.join-phase-icon { font-size: 3rem; }
.join-phase h3 { font-size: 1.2rem; }
.join-phase-note { font-size: 0.78rem; color: var(--text-light) !important; }
.join-phase-options { display: flex; flex-direction: column; gap: 0.8rem; width: 100%; margin-top: 0.5rem; }
.join-phase-option { display: flex; align-items: center; gap: 1rem; padding: 1rem 1.2rem; background: var(--bg-light); border-radius: var(--radius-md); cursor: pointer; transition: var(--transition); border: 2px solid transparent; text-align: left; }
.join-phase-option:hover { border-color: var(--primary-light); }
.jpo-icon { font-size: 1.5rem; flex-shrink: 0; }
.join-phase-option strong { display: block; font-size: 0.95rem; margin-bottom: 0.1rem; }
.join-phase-option span { font-size: 0.82rem; color: var(--text-secondary); }

.join-countries { padding: 3rem 2rem 4rem; max-width: 860px; margin: 0 auto; }
.join-countries-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin: 2rem 0; }
.join-country-card { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; padding: 1.5rem 1rem; background: var(--bg-card); border-radius: var(--radius-md); border: 2px solid var(--border-color); text-decoration: none; transition: var(--transition); cursor: pointer; }
.join-country-card:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.jcc-flag { font-size: 2rem; }
.jcc-name { font-size: 0.88rem; font-weight: 600; color: var(--text-primary); text-align: center; }
.join-more-countries { text-align: center; color: var(--text-light); font-size: 0.85rem; }

.join-contact-section { padding: 3rem 2rem 4rem; background: var(--bg-light); }
.join-contact-card-lg { max-width: 500px; margin: 2rem auto 0; background: var(--bg-card); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); }
.jcc-item { display: flex; align-items: center; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--border-color); }
.jcc-item:last-child { border-bottom: none; }
.jcc-icon { font-size: 1.5rem; flex-shrink: 0; width: 40px; text-align: center; }
.jcc-item strong { display: block; font-size: 0.9rem; margin-bottom: 0.15rem; }
.jcc-item span, .jcc-item a { font-size: 0.85rem; color: var(--text-secondary); }
.jcc-item a { color: var(--primary); font-weight: 500; }


/* Pro Card Styling */
.pricing-card.pricing-pro { border-color: #d4a017; box-shadow: 0 0 30px rgba(212,160,23,0.2); background: linear-gradient(135deg, #fffdf5 0%, #fffbe6 100%); }
.pricing-card.pricing-pro:hover { border-color: #b8860b; box-shadow: 0 0 40px rgba(212,160,23,0.3); }
.pricing-badge-pro { background: linear-gradient(135deg, #d4a017, #f5d742) !important; color: #1a0a2e !important; font-weight: 700 !important; }
.pricing-card.pricing-pro::before { content: '⭐ PRO'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, #d4a017, #f5d742); color: #1a0a2e; padding: 0.3rem 1.5rem; border-radius: 50px; font-size: 0.8rem; font-weight: 800; letter-spacing: 1px; box-shadow: 0 2px 10px rgba(212,160,23,0.3); }
.btn-gold { background: linear-gradient(135deg, #d4a017, #f5d742); color: #1a0a2e; font-weight: 700; box-shadow: 0 4px 15px rgba(212,160,23,0.4); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(212,160,23,0.5); }
/* Referral Dashboard */
.referral-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 768px) { .referral-grid { grid-template-columns: 1fr; } }
.referral-field { display: flex; flex-direction: column; gap: 0.3rem; }
.referral-field label { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); }
.ref-input { width: 100%; padding: 0.7rem 0.8rem; border: 2px solid var(--border-color); border-radius: var(--radius-sm); font-size: 0.82rem; font-family: var(--font-sans); outline: none; background: var(--bg-light); }
.ref-input:focus { border-color: var(--primary-light); background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; text-align: center; }
.stat-box { background: var(--bg-light); border-radius: var(--radius-md); padding: 1.5rem 1rem; }
.stat-number { font-size: 2rem; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.3rem; }
.pro-upgrade-box { text-align: center; padding: 2rem; background: linear-gradient(135deg, #fffdf5 0%, #fffbe6 100%); border: 2px dashed #d4a017; border-radius: var(--radius-lg); }
.pro-upgrade-icon { font-size: 2.5rem; margin-bottom: 0.5rem; }
.pro-upgrade-box h4 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.pro-upgrade-box p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 1rem; }
.badge-pro { background: linear-gradient(135deg, #d4a017, #f5d742); color: #1a0a2e; font-weight: 700; }


/* Shareable Link */
.shareable-link-box {
  background: var(--bg-light);
  border: 2px dashed var(--primary-light);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  margin-bottom: 1.5rem;
  text-align: center;
}
.shareable-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.shareable-link-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.shareable-link-input {
  flex: 1;
  padding: 0.7rem 0.8rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: monospace;
  background: #fff;
  outline: none;
  cursor: text;
}
.shareable-link-input:focus {
  border-color: var(--primary);
}
.shareable-hint {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 0.5rem;
}


/* Medical Disclaimer */
.chat-medical-disclaimer, .article-medical-disclaimer {
  background: #fffbeb;
  border: 1px solid #fcd34d;
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  margin: 1rem;
  font-size: 0.78rem;
  color: #92400e;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.chat-medical-disclaimer span:first-child {
  flex-shrink: 0;
  font-size: 1rem;
}



/* ============================================
   AI Agent - Voice UI
   ============================================ */

/* Mic button */
.chat-mic-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  background: var(--bg-light);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
  font-size: 1.1rem;
}
.chat-mic-btn:hover {
  border-color: var(--primary-light);
  background: rgba(124,58,237,0.05);
}
.chat-mic-btn.mic-active {
  border-color: #ef4444;
  background: #fef2f2;
  animation: mic-pulse 1.2s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(239,68,68,0); }
}

/* Voice status bar */
.voice-status-bar {
  display: none;
  align-items: center;
  gap: 0.8rem;
  padding: 0.5rem 1.5rem;
  background: #fef2f2;
  border-top: 1px solid #fecaca;
  font-size: 0.85rem;
  color: #dc2626;
}

.voice-status-text {
  flex: 1;
  font-size: 0.85rem;
  color: #dc2626;
}

.voice-cancel-btn {
  background: none;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  color: #9ca3af;
  padding: 4px;
}
.voice-cancel-btn:hover {
  color: #ef4444;
}

/* Voice wave animation */
.voice-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 24px;
}
.voice-wave span {
  display: inline-block;
  width: 3px;
  height: 100%;
  background: #ef4444;
  border-radius: 3px;
  animation: wave 1s ease-in-out infinite;
}
.voice-wave span:nth-child(1) { animation-delay: 0s; }
.voice-wave span:nth-child(2) { animation-delay: 0.15s; }
.voice-wave span:nth-child(3) { animation-delay: 0.3s; }
.voice-wave span:nth-child(4) { animation-delay: 0.45s; }
.voice-wave span:nth-child(5) { animation-delay: 0.6s; }

@keyframes wave {
  0%, 100% { height: 30%; }
  50% { height: 100%; }
}

/* Speaker button on messages */
.message-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 4px;
}

.msg-speaker-btn {
  background: none;
  border: none;
  font-size: 0.75rem;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  opacity: 0.5;
  transition: var(--transition);
  line-height: 1;
}
.msg-speaker-btn:hover {
  opacity: 1;
  background: rgba(124,58,237,0.08);
}

/* Clear button */
.chat-clear-btn {
  width: 100%;
  padding: 0.5rem;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--text-light);
  transition: var(--transition);
  font-family: var(--font-sans);
  margin-bottom: 0.8rem;
}
.chat-clear-btn:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  background: rgba(124,58,237,0.03);
}



/* ============================================
   System Intro Page
   ============================================ */
.system-hero {
  padding: calc(var(--nav-height) + 3rem) 2rem 5rem;
  background: linear-gradient(135deg, #1a0a2e 0%, #2d1b69 40%, #667eea 70%, #764ba2 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.system-hero::before {
  content: ''; position: absolute; top:0; left:0; right:0; bottom:0;
  background: radial-gradient(circle at 20% 30%, rgba(124,58,237,0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 70%, rgba(236,72,153,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.system-hero-content {
  max-width: 800px; margin: 0 auto; position: relative; z-index: 1;
}
.system-hero-badge {
  display: inline-block; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9); padding: 0.5rem 1.2rem; border-radius: 50px;
  font-size: 0.78rem; font-weight: 500; margin-bottom: 2rem; backdrop-filter: blur(10px);
}
.system-hero h1 { font-size: 3rem; color: #fff; margin-bottom: 1.2rem; line-height: 1.2; }
.text-gradient { background: linear-gradient(135deg, #f5d742, #f093fb); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.system-hero-sub { font-size: 1.1rem; color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto 2.5rem; line-height: 1.7; }
.system-hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Sections */
.system-section { padding: 4rem 2rem; }
.system-navy { background: #1a0a2e; color: #fff; }
.system-container { max-width: 1000px; margin: 0 auto; }
.system-tag {
  display: inline-block; background: rgba(124,58,237,0.1); border: 1px solid var(--primary-light);
  color: var(--primary); padding: 0.3rem 1rem; border-radius: 50px;
  font-size: 0.8rem; font-weight: 600; margin-bottom: 1rem;
}
.system-section h2 { font-size: 2rem; text-align: center; margin-bottom: 1.5rem; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.system-lead { text-align: center; font-size: 1rem; color: var(--text-secondary); max-width: 650px; margin: 0 auto 2.5rem; line-height: 1.7; }

/* Pain grid */
.pain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.pain-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); text-align: center; }
.pain-icon { font-size: 2.5rem; margin-bottom: 0.8rem; }
.pain-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.pain-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* Answer */
.system-answer { background: var(--bg-light); }
.answer-content { display: grid; gap: 2rem; }
.answer-block { background: var(--bg-card); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); position: relative; padding-left: 4.5rem; }
.answer-num { position: absolute; left: 1.5rem; top: 2rem; font-size: 1.5rem; font-weight: 800; color: var(--primary-light); }
.answer-block h3 { font-size: 1.15rem; margin-bottom: 0.3rem; }
.answer-block p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

/* Heritage */
.system-heritage { background: linear-gradient(135deg, #faf5ff 0%, #fff 100%); }
.heritage-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.heritage-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); text-align: center; }
.heritage-year { font-size: 2rem; font-weight: 800; color: var(--primary); font-family: var(--font-display); margin-bottom: 0.5rem; }
.heritage-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.heritage-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* AI Team */
.aiteam-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.5rem; }
.aiteam-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); text-align: center; }
.aiteam-avatar { width: 64px; height: 64px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; font-size: 1.5rem; font-weight: 700; color: #fff; }
.aiteam-card h3 { font-size: 1.05rem; margin-bottom: 0.2rem; }
.aiteam-title { font-size: 0.82rem; color: var(--primary); font-weight: 600; display: block; margin-bottom: 0.5rem; }
.aiteam-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; margin-bottom: 0.8rem; }
.aiteam-tags { display: flex; gap: 0.3rem; flex-wrap: wrap; justify-content: center; }
.aiteam-tags span { background: rgba(124,58,237,0.08); color: var(--primary); padding: 0.2rem 0.6rem; border-radius: 50px; font-size: 0.72rem; font-weight: 500; }

/* LSE */
.system-lse { background: var(--bg-light); }
.lse-flow { display: flex; align-items: center; justify-content: center; gap: 1.5rem; flex-wrap: wrap; }
.lse-step { flex: 1; min-width: 200px; max-width: 280px; text-align: center; }
.lse-step-num { width: 48px; height: 48px; border-radius: 50%; background: var(--gradient-main); color: #fff; display: flex; align-items: center; justify-content: center; margin: 0 auto 0.8rem; font-size: 1.2rem; font-weight: 800; }
.lse-step h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.lse-step p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }
.lse-arrow { font-size: 2rem; color: var(--primary-light); }
@media (max-width: 768px) { .lse-arrow { display: none; } }

/* Pro Features */
.system-pricing-cta { text-align: center; }
.system-pro-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1rem; max-width: 700px; margin: 0 auto 2rem; }
.spf-item { background: var(--bg-light); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1rem; font-size: 0.9rem; }
.system-cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Final CTA */
.system-final { text-align: center; background: linear-gradient(135deg, #1a0a2e 0%, #2d1b69 100%); color: #fff; }
.system-final h2 { color: #fff !important; -webkit-text-fill-color: #fff !important; }
.system-final p { color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto 2rem; line-height: 1.7; }
.system-final-note { font-size: 0.82rem; color: rgba(255,255,255,0.4) !important; margin-top: 1.5rem !important; }

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--text-light);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ====== 防闪加载：翻译完成前隐藏i18n元素 ====== */
body.i18n-loading [data-i18n] {
  visibility: hidden;
}
body.i18n-loading [data-i18n-placeholder]::placeholder {
  color: transparent !important;
}
body:not(.i18n-loading) [data-i18n] {
  animation: i18nFadeIn 0.15s ease-out;
}
@keyframes i18nFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}