@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');

:root {
    --primary-black: #1a1a1a;
    --accent-gold: #d4af37;
    --light-gold: #f1e5ac;
    --text-white: #ffffff;
    --text-gray: #a0a0a0;
    --bg-dark: #121212;
    --bg-card: #1e1e1e;
    --border-gold: rgba(212, 175, 55, 0.3);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
    cursor: pointer;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-gold);
    padding: 15px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--accent-gold);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-gold);
}

.mobile-toggle {
    display: none;
    font-size: 24px;
    color: var(--accent-gold);
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://tse-mm.bing.com/th?q=体育场馆') center/cover no-repeat;
    padding-top: 80px;
}

.hero-content h1 {
    font-size: clamp(32px, 8vw, 72px);
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto 30px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--accent-gold);
    color: var(--primary-black);
    font-weight: 600;
    border-radius: 4px;
    transition: var(--transition);
    border: 1px solid var(--accent-gold);
}

.btn:hover {
    background: transparent;
    color: var(--accent-gold);
}

.btn-outline {
    background: transparent;
    color: var(--accent-gold);
    margin-left: 15px;
}

.btn-outline:hover {
    background: var(--accent-gold);
    color: var(--primary-black);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    color: var(--accent-gold);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.section-title p {
    color: var(--text-gray);
}

/* Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    padding: 25px;
    border-radius: 8px;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.1);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 20px;
}

.card h3 {
    color: var(--accent-gold);
    margin-bottom: 10px;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item h4 {
    font-size: 48px;
    color: var(--accent-gold);
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 14px;
    color: var(--text-gray);
    text-transform: uppercase;
}

/* Footer */
footer {
    background: #0a0a0a;
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-gold);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: var(--accent-gold);
    margin-bottom: 20px;
    font-size: 18px;
}

.footer-col p, .footer-col li {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-gray);
    font-size: 12px;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .hero-content h1 {
        font-size: 40px;
    }
}

/* Product Page Specific */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    background: var(--bg-card);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 40px;
    border: 1px solid var(--border-gold);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.filter-group label {
    font-size: 12px;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.filter-group select, .filter-group input {
    background: var(--primary-black);
    color: var(--text-white);
    border: 1px solid var(--border-gold);
    padding: 8px 12px;
    border-radius: 4px;
    outline: none;
}

/* Contact Page Specific */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-gold);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--accent-gold);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    background: var(--primary-black);
    border: 1px solid var(--border-gold);
    color: var(--text-white);
    border-radius: 4px;
}

.form-group textarea {
    height: 150px;
    resize: none;
}

.map-container {
    width: 100%;
    height: 400px;
    border: 1px solid var(--border-gold);
    border-radius: 8px;
    overflow: hidden;
    margin-top: 30px;
}

.online-service {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--accent-gold);
    color: var(--primary-black);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    cursor: pointer;
    z-index: 1000;
}