/* 
  熊猫体育「中国」官方网站 - 快乐运动,智慧健身
  Style: Dark Gold (淡黑金)
*/

:root {
    --bg-color: #0a0a0a;
    --bg-dark: #111111;
    --gold: #d4af37;
    --gold-light: #f9e29b;
    --gold-dark: #aa8a2e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --white: #ffffff;
    --black: #000000;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    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;
    transition: var(--transition);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.bg-dark {
    background-color: var(--bg-dark);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 50%, var(--gold) 100%);
    color: var(--black);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gold);
    color: var(--gold);
}

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

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
.header {
    height: var(--header-height);
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.nav-desktop {
    display: flex;
    gap: 40px;
}

.nav-item {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 5px 0;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: var(--transition);
}

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

.nav-item.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--gold);
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.mobile-menu-close {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 2rem;
    color: var(--gold);
    cursor: pointer;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: 30px;
    text-align: center;
}

.mobile-menu-links a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Hero */
.hero {
    height: 100vh;
    background: url('https://tse-mm.bing.com/th?q=健身房背景') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.9) 100%);
}

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

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2, .section-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1rem;
    letter-spacing: 2px;
}

/* Intro Grid */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item h3 {
    font-size: 2rem;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 0.8rem;
    margin-bottom: 0;
}

.intro-img img {
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

/* Cards Grid */
.grid {
    display: grid;
    gap: 30px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background-color: var(--bg-dark);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid rgba(212, 175, 55, 0.1);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--gold);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
}

.card-img {
    height: 220px;
    overflow: hidden;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card:hover .card-img img {
    transform: scale(1.1);
}

.card-content {
    padding: 25px;
}

.card-tag {
    font-size: 0.7rem;
    color: var(--gold);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 10px;
    display: block;
}

.card-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* News Specific */
.news-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.view-all {
    font-size: 0.8rem;
    color: var(--gold);
    font-weight: 600;
}

/* Arrivals */
.arrivals-container {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--gold) transparent;
}

.arrival-item {
    min-width: 200px;
    text-align: center;
    background: var(--bg-color);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.arrival-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 15px;
    overflow: hidden;
    border: 2px solid var(--gold);
}

.arrival-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Promo Banner */
.promo-banner {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://tse-mm.bing.com/th?q=健身会员') center/cover;
    padding: 80px 40px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--gold);
}

.promo-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.promo-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Dynamics List */
.dynamics-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.dynamic-item {
    background: rgba(255,255,255,0.05);
    padding: 15px 25px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 3px solid var(--gold);
}

.dynamic-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Products Page Filters */
.filter-section {
    background: var(--bg-dark);
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 40px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.search-bar {
    position: relative;
    margin-bottom: 30px;
}

.search-bar input {
    width: 100%;
    padding: 15px 20px;
    background: var(--bg-color);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 1rem;
}

.search-bar i {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
}

.filter-groups {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-group label {
    font-weight: 700;
    color: var(--gold);
    min-width: 60px;
}

.filter-list {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-list li {
    font-size: 0.85rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.filter-list li:hover, .filter-list li.active {
    color: var(--gold);
    font-weight: 700;
}

.sort-bar {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sort-bar select {
    background: var(--bg-color);
    color: var(--gold);
    border: 1px solid var(--gold);
    padding: 5px 10px;
    border-radius: 5px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 60px;
}

.page-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.page-btn:hover, .page-btn.active {
    background: var(--gold);
    color: var(--black);
    border-color: var(--gold);
}

/* About Page History */
.history-list {
    margin-top: 20px;
}

.history-list li {
    margin-bottom: 15px;
    padding-left: 20px;
    position: relative;
}

.history-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--gold);
    border-radius: 50%;
}

/* Team Card */
.team-card {
    text-align: center;
    background: var(--bg-dark);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.team-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 3px solid var(--gold);
}

.team-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
}

.contact-form-container {
    background: var(--bg-dark);
    padding: 40px;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.contact-form-container h2 {
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--gold);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: var(--bg-color);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 5px;
    color: var(--text-primary);
}

.form-success {
    display: none;
    text-align: center;
    padding: 40px 0;
}

.form-success i {
    font-size: 4rem;
    color: #4caf50;
    margin-bottom: 20px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--gold);
    margin-top: 5px;
}

.info-item h4 {
    margin-bottom: 5px;
}

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

.map-container {
    margin-top: 20px;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    height: 250px;
    border: 1px solid var(--gold);
}

.map-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    transition: var(--transition);
}

.map-container:hover .map-overlay {
    background: rgba(0,0,0,0.2);
}

.map-overlay i {
    font-size: 2rem;
    margin-bottom: 10px;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    padding: 80px 0 0;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 25px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.social-links a:hover {
    background: var(--gold);
    color: var(--black);
}

.footer-links h4, .footer-newsletter h4 {
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--gold);
    padding-left: 5px;
}

.footer-newsletter p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px 15px;
    background: var(--bg-color);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 5px;
    color: var(--text-primary);
}

.footer-bottom {
    padding: 30px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Floating Buttons */
.floating-btns {
    position: fixed;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.floating-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gold);
    color: var(--black);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    transition: var(--transition);
}

.floating-btn:hover {
    transform: scale(1.1);
}

.floating-btn i {
    font-size: 1.2rem;
}

.floating-btn span {
    font-size: 0.6rem;
    font-weight: 700;
    margin-top: 2px;
}

#back-to-top {
    background: var(--bg-dark);
    color: var(--gold);
    border: 1px solid var(--gold);
}

/* Page Visibility */
.page-section {
    display: none;
    padding-top: var(--header-height);
}

.page-section.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .hero-title { font-size: 3.5rem; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-desktop { display: none; }
    .mobile-menu-btn { display: block; }
    .hero-title { font-size: 2.5rem; }
    .grid-3 { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; text-align: center; }
    .dynamics-list { grid-template-columns: 1fr; }
    .filter-groups { grid-template-columns: 1fr; }
    .promo-content h2 { font-size: 2rem; }
    .hero-btns { flex-direction: column; }
}