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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.weather-app {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px;
    width: 100%;
    max-width: 500px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 32px;
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.province-select {
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
    background: white;
    cursor: pointer;
}

.province-select:focus {
    outline: none;
    border-color: #667eea;
}

.city-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.city-input:focus {
    outline: none;
    border-color: #667eea;
}

.search-btn {
    padding: 12px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.search-btn:active {
    transform: translateY(0);
}

.weather-info {
    animation: slideIn 0.3s ease-in-out;
}

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

.city-name {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.weather-main {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.weather-icon {
    font-size: 80px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.temperature {
    font-size: 56px;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 10px;
}

.weather-description {
    font-size: 22px;
    color: #666;
    text-transform: capitalize;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.weather-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
}

.detail-item {
    padding: 20px 15px;
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.detail-item:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.detail-item .icon {
    font-size: 32px;
    display: block;
}

.detail-item .label {
    font-size: 12px;
    color: #999;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.detail-item .value {
    font-size: 18px;
    color: #333;
    font-weight: 700;
}

.detail-item:hover .label,
.detail-item:hover .value {
    color: white;
}

.error-message {
    padding: 15px;
    background: #ffebee;
    border: 1px solid #ef5350;
    border-radius: 10px;
    color: #c62828;
    text-align: center;
    animation: slideIn 0.3s ease-in-out;
}

.loading-message {
    text-align: center;
    color: #667eea;
    font-size: 16px;
    padding: 20px;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* 响应式设计 */
@media (max-width: 480px) {
    .weather-app {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .temperature {
        font-size: 42px;
    }

    .city-name {
        font-size: 20px;
    }

    .weather-details {
        grid-template-columns: 1fr;
    }
}

*{box-sizing:border-box;margin:0;padding:0}
html,body,#root{height:100%}
body{
  font-family: Inter, 'Segoe UI', Roboto, system-ui, -apple-system, 'Helvetica Neue', Arial;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}

.site{min-height:100vh;display:flex;flex-direction:column}

/* Header */
.site-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--surface);box-shadow:0 1px 3px rgba(2,6,23,0.06)}
.brand a{color:var(--text);text-decoration:none;font-weight:700;font-size:1.1rem}
.nav-toggle{display:none;border:0;background:transparent;font-size:1.2rem}
.site-nav ul{display:flex;gap:18px;list-style:none}
.site-nav a{color:var(--muted);text-decoration:none;padding:8px 10px;border-radius:6px;transition:all .18s}
.site-nav a:hover{color:var(--primary);background:rgba(79,70,229,0.06)}
.header-actions{display:flex;align-items:center;gap:8px}
.theme-toggle{border:0;background:transparent;font-size:1.1rem;cursor:pointer}

/* Hero */
.hero{padding:56px 20px;background:linear-gradient(90deg,rgba(79,70,229,0.08),rgba(6,182,212,0.03));text-align:center}
.hero-inner{max-width:960px;margin:0 auto}
.hero h1{font-size:2rem;margin-bottom:12px}
.hero p{color:var(--muted);margin-bottom:18px}
.cta{display:inline-block;padding:10px 18px;background:var(--primary);color:#fff;border-radius:8px;text-decoration:none}

/* Features */
.features{padding:48px 20px}
.features h2{text-align:center;margin-bottom:24px}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1100px;margin:0 auto}
.feature{background:var(--surface);padding:18px;border-radius:var(--radius);box-shadow:0 6px 18px rgba(15,23,42,0.04)}
.feature h3{margin-bottom:8px;color:var(--primary)}

/* Pricing */
.pricing{padding:40px 20px;background:transparent}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1100px;margin:0 auto}
.plan{background:var(--surface);padding:18px;border-radius:var(--radius);text-align:center;border:1px solid rgba(2,6,23,0.04)}
.plan.popular{border:2px solid var(--primary);box-shadow:0 8px 24px rgba(79,70,229,0.08)}
.price{font-size:1.4rem;color:var(--primary);margin:12px 0}

/* Contact & footer */
.contact{padding:40px 20px;text-align:center}
.site-footer{padding:18px 20px;text-align:center;color:var(--muted);margin-top:auto}

/* Dark theme */
body.dark{
  --bg:#071124;--surface:#071a2b;--text:#e6eef6;--muted:#9fb3c8;--primary:#7c5cff;--accent:#06b6d4
}

/* Responsive */
@media (max-width:900px){
  .features-grid,.pricing-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;left:0;right:0;top:64px;background:var(--surface);padding:12px 20px;box-shadow:0 8px 24px rgba(2,6,23,0.12);transform:translateY(-8px);opacity:0;visibility:hidden;transition:all .18s;border-radius:0 0 12px 12px}
  .site-nav.open{opacity:1;visibility:visible;transform:translateY(0)}
  .site-nav ul{flex-direction:column}
  .features-grid,.pricing-grid{grid-template-columns:1fr}
  .hero{padding:36px 16px}
  .hero h1{font-size:1.5rem}
}

/* Utility */
.hidden{display:none}