/* 
  熊猫体育 - 纯CSS样式表
  主题：淡黑金 (Black Gold)
*/

:root {
    --gold: #D4AF37;
    --dark-gold: #AA841E;
    --light-gold: #F1D592;
    --rich-black: #0A0A0A;
    --soft-black: #121212;
    --card-black: #1A1A1A;
    --text-gray: #9CA3AF;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--soft-black);
    color: #E5E7EB;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gold-text {
    color: var(--gold);
}

.gold-gradient-text {
    background: linear-gradient(135deg, var(--gold) 0%, var(--light-gold) 50%, var(--dark-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

section {
    padding: 80px 0;
}

/* Components */
.btn-gold {
    display: inline-block;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--gold) 0%, var(--light-gold) 50%, var(--dark-gold) 100%);
    color: var(--rich-black);
    font-weight: 700;
    text-decoration: none;
    border-radius: 2px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.4);
}

.btn-outline {
    display: inline-block;
    padding: 12px 32px;
    border: 2px solid var(--gold);
    color: var(--gold);
    font-weight: 700;
    text-decoration: none;
    border-radius: 2px;
    transition: all 0.3s ease;
    background: transparent;
    cursor: pointer;
}

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

/* Navbar */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
}

header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, var(--gold), var(--dark-gold));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rich-black);
}

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

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: #9CA3AF;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

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

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(to bottom, rgba(10,10,10,0.7), rgba(10,10,10,0.9)), url('https://tse-mm.bing.com/th?q=健身房 高端 奢华');
    background-size: cover;
    background-position: center;
    transform: scale(1.1);
}

.hero-content h1 {
    font-size: 72px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    color: #9CA3AF;
    max-width: 700px;
    margin: 0 auto 40px;
}

/* Cards */
.card {
    background: var(--card-black);
    border-radius: 4px;
    padding: 30px;
    transition: all 0.4s ease;
    border: 1px solid transparent;
}

.card:hover {
    transform: translateY(-10px);
    border-color: rgba(212, 175, 55, 0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

/* Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

/* Marquee */
.marquee-container {
    background: var(--rich-black);
    padding: 40px 0;
    overflow: hidden;
    white-space: nowrap;
}

.marquee-content {
    display: inline-block;
    animation: marquee 60s linear infinite;
}

.marquee-item {
    display: inline-block;
    margin-right: 50px;
    background: var(--card-black);
    padding: 15px 25px;
    border-radius: 2px;
    border-left: 3px solid var(--gold);
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Products Page */
.filter-bar {
    background: var(--card-black);
    padding: 30px;
    margin-bottom: 40px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-box input {
    width: 100%;
    background: var(--rich-black);
    border: 1px solid #333;
    padding: 12px 15px 12px 40px;
    color: white;
    outline: none;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
}

.select-group {
    display: flex;
    gap: 15px;
}

select {
    background: var(--rich-black);
    color: white;
    border: 1px solid #333;
    padding: 10px 20px;
    outline: none;
}

/* Footer */
footer {
    background: var(--rich-black);
    padding: 80px 0 40px;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-links h4 {
    color: var(--gold);
    margin-bottom: 25px;
    text-transform: uppercase;
    font-size: 14px;
    letter-spacing: 2px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #6B7280;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--gold);
}

/* Responsive */
@media (max-width: 1024px) {
    .grid-3, .grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 48px;
    }
    .grid-3, .grid-5 {
        grid-template-columns: 1fr;
    }
    .nav-links {
        display: none;
    }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Map */
.map-box {
    height: 400px;
    background: #111;
    position: relative;
    overflow: hidden;
}

.map-box img {
    width: 100%;
    height: 100%;
    object-cover: cover;
    filter: grayscale(1) invert(1);
    opacity: 0.4;
}