/* ==============================================
   CNGZ.cc — 外国人在广州的数字化生存指南
   Design System & Styles
   ============================================== */

/* ----- CSS Variables ----- */
:root {
  --primary: #07C160;
  --primary-dark: #06AD56;
  --primary-light: #E8F8EF;
  --accent: #F5A623;
  --accent-dark: #E09510;
  --bg: #FAFBFD;
  --bg-alt: #F0F2F5;
  --bg-dark: #1A1D23;
  --bg-darker: #121418;
  --surface: #FFFFFF;
  --surface-hover: #F8F9FB;
  --text: #1A1D28;
  --text-secondary: #5F6570;
  --text-tertiary: #8B919E;
  --text-light: #B0B5C0;
  --border: #E5E7EB;
  --border-light: #F0F1F5;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
  --shadow-xl: 0 32px 80px rgba(0,0,0,0.14);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s ease;
  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-zh: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1280px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-en);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background: var(--primary);
  color: #fff;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input { font: inherit; border: none; outline: none; background: none; }

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

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

/* ==============================================
   NAVIGATION
   ============================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.03em;
}

.logo-icon { font-size: 28px; }
.logo-dot { color: var(--primary); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-menu a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.nav-menu a:hover {
  background: var(--bg-alt);
  color: var(--text);
}

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

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  background: var(--bg-alt);
  transition: var(--transition-fast);
}

.lang-switch:hover { background: var(--border); }
.lang-label { padding: 2px 6px; border-radius: 12px; transition: var(--transition-fast); }
.lang-label.active { background: var(--primary); color: #fff; }
.lang-divider { color: var(--text-tertiary); }

.search-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  font-size: 16px;
}

.search-btn:hover { background: var(--bg-alt); color: var(--text); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ----- Search Overlay ----- */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.search-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.search-box {
  width: 100%;
  max-width: 600px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.search-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}

.search-top i { color: var(--text-tertiary); font-size: 18px; }

.search-top input {
  flex: 1;
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
}

.search-top input::placeholder { color: var(--text-light); }

.search-top button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: var(--transition-fast);
}

.search-top button:hover { background: var(--bg-alt); }

.search-hints {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 13px;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.hint-tag {
  padding: 4px 12px;
  background: var(--bg-alt);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.hint-tag:hover { background: var(--primary-light); color: var(--primary-dark); }

.search-results { max-height: 400px; overflow-y: auto; }

.search-empty {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-secondary);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  transition: var(--transition-fast);
  cursor: pointer;
  border-bottom: 1px solid var(--border-light);
}

.search-result-item:hover { background: var(--bg-alt); }

.sr-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 14px;
}

.sr-content h4 {
  font-size: 15px;
  margin-bottom: 2px;
}

.sr-content span {
  font-size: 12px;
  color: var(--text-tertiary);
}

.nav-menu a.active {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

/* ==============================================
   HERO SECTION
   ============================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 30%, transparent 70%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
}

.g1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  left: -100px;
  animation: float 8s ease-in-out infinite;
}

.g2 {
  width: 500px;
  height: 500px;
  background: var(--accent);
  bottom: -150px;
  right: -100px;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(7, 193, 96, 0.08);
  border: 1px solid rgba(7, 193, 96, 0.15);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary-dark);
  margin-bottom: 32px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.line-l1 {
  font-size: 18px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
}

.line-l2 {
  font-size: 45px;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text) 0%, #333 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.line-l3 {
  font-family: var(--font-zh);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-secondary);
}

.highlight {
  background: linear-gradient(135deg, var(--primary) 0%, #00D68F 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 30px rgba(7, 193, 96, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(7, 193, 96, 0.4);
}

.btn-glass {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-glass:hover {
  background: var(--bg-alt);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border-light);
}

.stat {
  text-align: center;
}

.stat-num {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.stat-txt {
  font-size: 13px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border-light);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 1;
  opacity: 0.6;
  transition: var(--transition);
}

.hero-scroll:hover { opacity: 1; }

.scroll-mouse {
  width: 22px;
  height: 36px;
  border: 2px solid var(--text-tertiary);
  border-radius: 12px;
  position: relative;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--text-tertiary);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollAnim 1.5s ease-in-out infinite;
}

@keyframes scrollAnim {
  0% { opacity: 1; top: 6px; }
  100% { opacity: 0; top: 20px; }
}

/* ==============================================
   SECTION STYLES (Shared)
   ============================================== */
.section {
  padding: 100px 0;
}

.section-alt { background: var(--bg-alt); }
.section-dark {
  background: var(--bg-dark);
  color: #fff;
}

.section-head {
  text-align: center;
  margin-bottom: 64px;
}

.section-head.light .sec-title { color: #fff; }
.section-head.light .sec-sub { color: #889; }

.sec-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.sec-title {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.sec-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* ==============================================
   QUICK START / STEPS
   ============================================== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step {
  position: relative;
}

.step-num {
  position: absolute;
  top: -12px;
  left: 24px;
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  z-index: 1;
  box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
}

.step-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 40px 24px 24px;
  height: 100%;
  transition: var(--transition);
}

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

.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.step:nth-child(1) .step-icon { background: #E8F5E9; color: #4CAF50; }
.step:nth-child(2) .step-icon { background: #E8F8EF; color: #07C160; }
.step:nth-child(3) .step-icon { background: #E3F2FD; color: #1677FF; }
.step:nth-child(4) .step-icon { background: #FFF3E0; color: #FF9800; }
.step:nth-child(5) .step-icon { background: #FCE4EC; color: #E91E63; }
.step:nth-child(6) .step-icon { background: #EDE7F6; color: #7C4DFF; }

.step-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-tags {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 10px;
  background: var(--bg-alt);
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tag.red { background: #FFF0F0; color: #E53935; }

/* ==============================================
   APP GRID
   ============================================== */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.app-card.featured {
  grid-row: span 2;
}

.app-card.featured .app-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  margin-bottom: 20px;
  font-size: 28px;
}

.app-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

.app-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  margin-bottom: 16px;
}

.app-card h3 { font-size: 16px; margin-bottom: 2px; }

.app-name {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.app-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.app-link {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  background: var(--bg-alt);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.app-link:hover { background: var(--text); color: #fff; }

/* ==============================================
   PAYMENT / DARK SECTIONS
   ============================================== */
.pay-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.pay-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.pay-card:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.15);
}

.pay-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.pay-card-icon.green { background: rgba(7,193,96,0.15); color: #07C160; }
.pay-card-icon.blue { background: rgba(22,119,255,0.15); color: #1677FF; }
.pay-card-icon.gold { background: rgba(245,166,35,0.15); color: #F5A623; }
.pay-card-icon.red { background: rgba(229,57,53,0.15); color: #EF5350; }

.pay-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #fff;
}

.pay-card p {
  font-size: 14px;
  color: #889;
  line-height: 1.6;
  margin-bottom: 16px;
}

.pay-tips {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pay-tips li {
  font-size: 13px;
  color: #aaa;
  padding-left: 20px;
  position: relative;
}

.pay-tips li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
}

/* ==============================================
   INFO BANNER
   ============================================== */
.info-banner {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background: var(--primary-light);
  border: 1px solid rgba(7,193,96,0.15);
  border-radius: var(--radius);
  margin-top: 40px;
  font-size: 14px;
  color: var(--text);
  align-items: flex-start;
}

.section-dark .info-banner {
  background: rgba(7,193,96,0.1);
  border-color: rgba(7,193,96,0.2);
  color: #ddd;
}

.info-banner.warn {
  background: #FFF8E1;
  border-color: rgba(245,166,35,0.2);
}

.info-banner i {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.section-dark .info-banner i { color: #07C160; }
.info-banner:not(.warn) i { color: var(--primary); }
.info-banner.warn i { color: var(--accent); }

/* ==============================================
   TRANSPORT
   ============================================== */
.transport-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.t-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}

.t-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.t-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.t-content h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.t-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.t-info {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.t-info span {
  font-size: 12px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.t-info i { font-size: 12px; opacity: 0.6; }

/* ==============================================
   FOOD
   ============================================== */
.food-content {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
}

.food-block {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 24px;
}

.food-block h3 {
  font-size: 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.food-block h3 i { color: var(--primary); }

.food-apps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.food-app {
  background: var(--bg-alt);
  padding: 20px;
  border-radius: var(--radius);
}

.food-app strong { font-size: 15px; display: block; margin-bottom: 8px; }
.food-app p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

.food-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.food-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.food-emoji { font-size: 28px; flex-shrink: 0; }
.food-item strong { font-size: 15px; display: block; margin-bottom: 2px; }
.food-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

.tip-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tip-list li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
}

.tip-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  position: sticky;
  top: 100px;
}

.sidebar-card h4 {
  font-size: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.phrase {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
}

.phrase:last-child { border-bottom: none; }

.zh {
  display: block;
  font-family: var(--font-zh);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.en {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.py {
  display: block;
  font-size: 11px;
  color: var(--text-tertiary);
  font-style: italic;
}

/* ==============================================
   HOUSING
   ============================================== */
.housing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.house-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.house-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.house-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.house-header i {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 10px;
  font-size: 18px;
}

.house-header h3 { font-size: 18px; }

.house-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.house-range {
  display: inline-block;
  padding: 6px 14px;
  background: var(--bg-alt);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

/* ==============================================
   NET / INTERNET
   ============================================== */
.net-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.net-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.net-card:hover {
  background: rgba(255,255,255,0.06);
}

.net-card > i {
  font-size: 28px;
  margin-bottom: 16px;
  color: #07C160;
}

.net-card h3 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 16px;
}

.net-card p {
  font-size: 14px;
  color: #889;
  line-height: 1.6;
}

.net-table {
  background: rgba(0,0,0,0.2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 12px;
}

.net-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  padding: 10px 16px;
  font-size: 13px;
  color: #ccc;
}

.net-row.head {
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #888;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.net-note, .net-range {
  font-size: 12px;
  color: #777;
  margin-top: 8px;
}

.net-range {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: #ccc;
}

.net-vpns {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.net-vpns span {
  padding: 6px 14px;
  background: rgba(255,255,255,0.08);
  border-radius: 20px;
  font-size: 12px;
  color: #ccc;
}

.alt-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 8px;
}

.alt-list div {
  font-size: 13px;
  padding: 8px 12px;
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
}

.alt-list span { color: #777; margin-right: 6px; }
.alt-list strong { color: #ddd; }

/* ==============================================
   HEALTHCARE
   ============================================== */
.health-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.health-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.health-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.health-card > i {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFEBEE;
  color: #E53935;
  border-radius: 12px;
  font-size: 20px;
  margin-bottom: 20px;
}

.health-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.health-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.health-card ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.health-card ul li {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: 16px;
  position: relative;
}

.health-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: #E53935;
  border-radius: 50%;
}

.health-note {
  display: inline-block;
  padding: 6px 14px;
  background: #FFF0F0;
  color: #C62828;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
}

/* ==============================================
   SHOPPING
   ============================================== */
.shop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.shop-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.shop-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.shop-img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.shop-card h3 { font-size: 18px; margin-bottom: 10px; }

.shop-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==============================================
   VISA
   ============================================== */
.visa-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.visa-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: var(--transition);
}

.visa-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.visa-card h3 {
  font-size: 18px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.visa-card h3 i { color: #1677FF; }

.visa-types {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.v-type {
  font-size: 14px;
  padding: 10px 14px;
  background: var(--bg-alt);
  border-radius: 8px;
  border-left: 3px solid #1677FF;
}

.v-type strong { color: #1677FF; }

.visa-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.v-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.v-step span {
  width: 26px;
  height: 26px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.visa-address {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.visa-address strong { color: var(--text); }

.visa-reminders {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.visa-reminders li {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
}

.visa-reminders li::before {
  content: '⚠';
  position: absolute;
  left: 0;
  top: 0;
  font-size: 13px;
}

/* ==============================================
   DAILY LIFE TIPS
   ============================================== */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.tip-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}

.tip-card:hover {
  background: rgba(255,255,255,0.06);
  transform: translateY(-3px);
}

.tip-card i {
  font-size: 24px;
  margin-bottom: 16px;
  color: var(--primary);
}

.tip-card h3 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 10px;
}

.tip-card p {
  font-size: 13px;
  color: #889;
  line-height: 1.6;
}

/* ==============================================
   EMERGENCY
   ============================================== */
.emergency-section {
  background: linear-gradient(180deg, #FFF5F5 0%, var(--bg) 100%);
}

.emergency-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.em-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.em-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.em-card.critical {
  border-color: #FFCDD2;
  background: #FFFBFB;
}

.em-num {
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.em-card.critical .em-num { color: #E53935; }
.em-card:not(.critical) .em-num { color: var(--text); }

.em-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.em-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ----- Embassies ----- */
.embassy-grid {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
}

.embassy-grid > h3 {
  font-size: 18px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.embassy-grid > h3 i { color: var(--text-tertiary); }

.embassy-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.embassy {
  padding: 16px;
  background: var(--bg-alt);
  border-radius: var(--radius);
}

.embassy .flag { font-size: 24px; margin-right: 8px; }
.embassy strong { font-size: 14px; display: inline; }
.embassy p {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ==============================================
   FOOTER
   ============================================== */
.footer {
  background: var(--bg-darker);
  color: #aaa;
  padding: 80px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  display: block;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  color: #777;
  max-width: 360px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: #777;
  margin-bottom: 10px;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
}

.footer-bottom p {
  font-size: 12px;
  color: #555;
  line-height: 1.5;
}

/* ==============================================
   RESPONSIVE DESIGN
   ============================================== */
@media (max-width: 1200px) {
  .app-grid { grid-template-columns: repeat(3, 1fr); }
  .tips-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .section { padding: 80px 0; }
  .sec-title { font-size: 32px; }
  .line-l2 { font-size: 42px; }
  .line-l3 { font-size: 24px; }

  .steps { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .transport-grid { grid-template-columns: repeat(2, 1fr); }
  .food-content { grid-template-columns: 1fr; }
  .housing-grid { grid-template-columns: repeat(2, 1fr); }
  .net-grid { grid-template-columns: 1fr; }
  .health-grid { grid-template-columns: 1fr 1fr; }
  .shop-grid { grid-template-columns: 1fr 1fr; }
  .visa-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: repeat(2, 1fr); }
  .emergency-grid { grid-template-columns: repeat(2, 1fr); }
  .embassy-list { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .pay-grid { grid-template-columns: 1fr; }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--surface);
    flex-direction: column;
    padding: 100px 32px 32px;
    transition: var(--transition);
    box-shadow: var(--shadow-xl);
    gap: 4px;
  }

  .nav-menu.active { right: 0; }

  .nav-menu a {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 8px;
  }

  .menu-toggle { display: flex; }

  .hero-stats { gap: 24px; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .sec-title { font-size: 28px; }
  .line-l2 { font-size: 32px; }
  .line-l3 { font-size: 20px; }
  .hero-desc { font-size: 15px; }
  .hero-btns { flex-direction: column; align-items: center; }

  .steps { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .app-card.featured { grid-row: span 1; }
  .pay-grid { grid-template-columns: 1fr; }
  .transport-grid { grid-template-columns: 1fr; }
  .food-apps { grid-template-columns: 1fr; }
  .housing-grid { grid-template-columns: 1fr; }
  .health-grid { grid-template-columns: 1fr; }
  .shop-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .emergency-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }

  .em-num { font-size: 36px; }
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  .stat-divider { width: 60px; height: 1px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .line-l2 { font-size: 26px; }
  .footer-links { grid-template-columns: 1fr; }
  .section-head { margin-bottom: 40px; }
}