/* ===================================
   BBR少儿运动馆 - 完整样式表
   配色：黑橙主题（#FFB800金黄 / #2D2D2D黑色 / #FF8C00橙色）
   设计风格：现代大气、动感活力
   =================================== */

/* ========== CSS 变量 ========== */
:root {
    --primary: #FFB800;      /* 主色：金黄 */
    --primary-dark: #E6A700; /* 主色深色 */
    --secondary: #2D2D2D;    /* 辅助色：深黑 */
    --accent: #FF8C00;       /* 强调色：橙色 */
    --white: #FFFFFF;
    --light: #F5F5F5;
    --gray: #999999;
    --dark-gray: #666666;
    --success: #4CAF50;
    --danger: #F44336;
    
    --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

/* ========== 全局重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--secondary);
    line-height: 1.6;
    background: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--secondary);
    box-shadow: 0 4px 15px rgba(255,184,0,0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,184,0,0.6);
}

.btn-secondary {
    background: rgba(255,255,255,0.95);
    color: #FF8C00;
    border: 2px solid #FF8C00;
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

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

/* ========== 区块标题 ========== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: var(--primary);
    color: var(--secondary);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.section-title {
    font-size: 42px;
    font-weight: 900;
    color: var(--secondary);
    margin-bottom: 15px;
    line-height: 1.2;
}

.section-desc {
    font-size: 18px;
    color: var(--dark-gray);
}

.section-header.light .section-title,
.section-header.light .section-desc {
    color: var(--white);
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(45,45,45,0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(45,45,45,0.98);
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar .logo img {
    height: 45px;
    width: auto;
}

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

.nav-links a {
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* ========== 英雄区 ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding-top: 70px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(45,45,45,0.85), rgba(45,45,45,0.7));
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 40px 20px;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    background: var(--primary);
    color: var(--secondary);
    padding: 10px 25px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 30px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-title .accent {
    color: var(--primary);
    display: block;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

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

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 15px;
    position: relative;
    opacity: 0.7;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 10px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

/* ========== 关于我们 ========== */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 60px;
}

.intro-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.intro-image img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.about-card {
    background: var(--light);
    padding: 35px 25px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.about-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.about-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

.about-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--secondary);
}

.about-card p {
    font-size: 14px;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ========== 发展历程 ========== */
.timeline-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--secondary), #1a1a1a);
}

.timeline-image-wrapper {
    text-align: center;
    margin-bottom: 50px;
}

.timeline-full-img {
    max-width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.timeline-highlights {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.timeline-item {
    background: rgba(255,255,255,0.1);
    padding: 25px 15px;
    border-radius: var(--radius-sm);
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,184,0,0.3);
    transition: var(--transition);
}

.timeline-item:hover {
    background: rgba(255,184,0,0.15);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.timeline-year {
    display: block;
    font-size: 28px;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 10px;
}

.timeline-item p {
    font-size: 13px;
    color: rgba(255,255,255,0.8);
    line-height: 1.5;
}

/* ========== 障碍竞技 ========== */
.ocr-section {
    padding: 100px 0;
    background: var(--light);
}

.ocr-intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: start;
    margin-bottom: 60px;
}

.ocr-text-col h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 20px;
}

.ocr-text-col p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: 15px;
}

.ocr-highlight-box {
    background: var(--white);
    border-left: 4px solid var(--primary);
    padding: 20px;
    border-radius: var(--radius-sm);
    margin-top: 20px;
}

.ocr-highlight-box strong {
    display: block;
    color: var(--secondary);
    margin-bottom: 10px;
    font-size: 18px;
}

.ocr-highlight-box ul {
    list-style: disc;
    padding-left: 20px;
}

.ocr-highlight-box li {
    font-size: 14px;
    color: var(--dark-gray);
    margin-bottom: 5px;
}

.ocr-img-col {
    position: sticky;
    top: 100px;
}

.ocr-img-col img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.ocr-caption {
    text-align: center;
    margin-top: 15px;
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
}

.ocr-advantages {
    background: var(--white);
    padding: 60px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.adv-card {
    text-align: center;
    padding: 20px;
}

.adv-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

.adv-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.adv-card p {
    font-size: 14px;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ========== 课程项目 ========== */
.programs {
    padding: 100px 0;
    background: var(--white);
}

/* 课程项目横幅 */
.programs-banner {
    margin-bottom: 50px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.programs-banner img {
    width: 100%;
    height: auto;
    display: block;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.program-card {
    background: var(--light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    border: 2px solid transparent;
}

.program-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.program-card.featured {
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(255,184,0,0.3);
}

.program-badge {
    display: block;
    background: var(--primary);
    color: var(--secondary);
    padding: 8px 15px;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}

.program-cover-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.program-body {
    padding: 25px;
}

.program-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 10px;
}

.program-body h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--secondary);
}

.program-age {
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 10px;
    font-weight: 600;
}

.program-desc {
    font-size: 14px;
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: 15px;
}

.program-features {
    margin-bottom: 15px;
}

.program-features li {
    font-size: 13px;
    color: var(--dark-gray);
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}

.program-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.program-price {
    font-size: 14px;
    color: var(--dark-gray);
    margin-bottom: 15px;
}

.program-price .price {
    font-size: 24px;
    font-weight: 900;
    color: var(--accent);
}

/* ========== 荣誉成绩 ========== */
.honor-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--secondary), #1a1a1a);
    color: var(--white);
}

.honor-feature {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 60px;
    background: rgba(255,255,255,0.05);
    padding: 40px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,184,0,0.3);
}

.honor-feature-img img {
    width: 100%;
    border-radius: var(--radius-sm);
}

.honor-tag {
    display: inline-block;
    background: var(--primary);
    color: var(--secondary);
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
}

.honor-feature-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--white);
}

.honor-feature-text p {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255,255,255,0.8);
    margin-bottom: 10px;
}

.honor-feature-text blockquote {
    background: rgba(255,184,0,0.1);
    border-left: 4px solid var(--primary);
    padding: 15px 20px;
    margin-top: 20px;
    font-style: italic;
    color: rgba(255,255,255,0.9);
}

.honor-grid-title {
    text-align: center;
    margin-bottom: 40px;
}

.honor-grid-title h3 {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
}

.honor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.honor-card {
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255,184,0,0.2);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.honor-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255,184,0,0.2);
}

.honor-card img {
    width: 100%;
    height: 200px;
    background: #333;
    object-fit: cover;
}

.honor-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.honor-info h4 {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
}

.honor-info p {
    font-size: 13px;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
    margin-bottom: 5px;
}

.honor-name {
    color: var(--white) !important;
    font-weight: 600 !important;
}

.honor-slogan {
    color: var(--primary) !important;
    font-style: italic;
    font-size: 12px !important;
}

.honor-text-only {
    display: flex;
    align-items: stretch;
}

.honor-text-only .honor-info {
    justify-content: center;
}

.honor-note {
    color: rgba(255,184,0,0.7) !important;
    font-size: 11px !important;
    margin-top: 8px !important;
    font-style: italic;
}

.coach-section {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: center;
    background: rgba(255,255,255,0.05);
    padding: 50px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,184,0,0.3);
    margin-top: 0;
}

.coach-img {
    width: 100%;
    border-radius: var(--radius-sm);
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

.coach-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 15px;
}

.coach-text p {
    font-size: 15px;
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
    margin-bottom: 15px;
}

.coach-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.coach-tag {
    background: rgba(255,184,0,0.15);
    color: var(--primary);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(255,184,0,0.3);
}

/* ========== 场馆设施 ========== */
.venue-section {
    padding: 100px 0;
    background: var(--light);
}

.venue-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 60px;
}

.venue-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.venue-item.large {
    grid-row: span 2;
}

.venue-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.venue-item:hover img {
    transform: scale(1.05);
}

.venue-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
    transform: translateY(100%);
    transition: var(--transition);
}

.venue-item:hover .venue-overlay {
    transform: translateY(0);
}

.venue-overlay span {
    display: block;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 5px;
}

.venue-overlay p {
    font-size: 14px;
    opacity: 0.8;
}

.bbr-advantages {
    background: var(--white);
    padding: 60px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.bbr-adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.bbr-adv-item {
    text-align: center;
    padding: 20px;
}

.bbr-adv-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

.bbr-adv-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px;
}

.bbr-adv-item p {
    font-size: 14px;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ========== 品牌矩阵 ========== */
.brands-section {
    padding: 100px 0;
    background: var(--white);
}

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

.brand-card {
    background: var(--light);
    padding: 35px 25px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.brand-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.brand-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

.brand-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 8px;
}

.brand-card p {
    font-size: 14px;
    color: var(--dark-gray);
}

/* ========== 联系我们 ========== */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--secondary), #1a1a1a);
    color: var(--white);
}

.contact .section-header {
    margin-bottom: 60px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-card {
    background: rgba(255,255,255,0.05);
    padding: 25px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,184,0,0.2);
    transition: var(--transition);
}

.info-card:hover {
    border-color: var(--primary);
    background: rgba(255,184,0,0.05);
}

.info-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 10px;
}

.info-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.info-card p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
}

.contact-form-wrapper {
    background: rgba(255,255,255,0.05);
    padding: 40px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,184,0,0.3);
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 25px;
    text-align: center;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.05);
    color: var(--white);
    font-size: 15px;
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.5);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,184,0,0.05);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--secondary);
    color: var(--white);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-form button {
    width: 100%;
    padding: 16px;
    font-size: 18px;
}

/* ========== 页脚 ========== */
.footer {
    background: #1a1a1a;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo img {
    height: 50px;
    margin-bottom: 15px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.95);
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.95);
    transition: var(--transition);
}

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

.footer-contact p {
    font-size: 14px;
    color: rgba(255,255,255,0.95);
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a {
    color: var(--primary);
}

/* ========== 弹窗 ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    padding: 50px;
    border-radius: var(--radius-md);
    text-align: center;
    max-width: 500px;
    width: 90%;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-icon {
    font-size: 64px;
    display: block;
    margin-bottom: 20px;
}

.modal-content h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 15px;
}

.modal-content p {
    font-size: 16px;
    color: var(--dark-gray);
    margin-bottom: 25px;
    line-height: 1.6;
}

.modal-content button {
    min-width: 200px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .programs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
    }
    
    .timeline-highlights {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .ocr-intro-grid {
        grid-template-columns: 1fr;
    }
    
    .ocr-advantages {
        padding: 30px 20px;
    }
    
    .adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .honor-feature {
        grid-template-columns: 1fr;
    }
    
    .honor-grid {
        grid-template-columns: 1fr;
    }
    
    .coach-section {
        grid-template-columns: 1fr;
        padding: 30px 20px;
    }
    
    .venue-gallery {
        grid-template-columns: 1fr;
    }
    
    .bbr-adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .timeline-highlights {
        grid-template-columns: 1fr 1fr;
    }
    
    .adv-grid {
        grid-template-columns: 1fr;
    }
    
    .bbr-adv-grid {
        grid-template-columns: 1fr;
    }
    
    .brands-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== 动画效果 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========== 滚动条样式 ========== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}

/* =================== 教练团队翻页轮播 =================== */
.coaches-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.coaches-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,140,0,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.coach-carousel-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 50px;
    position: relative;
}

.coach-carousel-track {
    flex: 1;
    overflow: hidden;
    border-radius: 12px;
}

.coach-carousel-inner {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.coach-card {
    flex: 0 0 calc(25% - 18px);
    margin: 0 9px;
    background: #222;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.coach-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(255,140,0,0.2);
}

.coach-card img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    display: block;
}

/* 翻页按钮 */
.coach-carousel-btn {
    flex: 0 0 48px;
    height: 48px;
    border: 2px solid var(--primary);
    background: rgba(255,184,0,0.1);
    color: var(--primary);
    font-size: 24px;
    font-weight: 700;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.coach-carousel-btn:hover {
    background: var(--primary);
    color: #1a1a1a;
    transform: scale(1.1);
}

.coach-carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
    background: transparent;
    color: var(--primary);
}

/* 分页圆点 */
.coach-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.coach-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #444;
    cursor: pointer;
    transition: all 0.3s ease;
}

.coach-dot.active {
    background: var(--primary);
    transform: scale(1.3);
    box-shadow: 0 0 10px rgba(255,184,0,0.5);
}

/* 页码信息 */
.coach-page-info {
    text-align: center;
    color: #888;
    font-size: 14px;
    margin-top: 12px;
}

.coach-page-info span {
    color: var(--primary);
    font-weight: 700;
}

/* 响应式 */
@media (max-width: 1200px) {
    .coach-card {
        flex: 0 0 calc(33.333% - 18px);
    }
}

@media (max-width: 768px) {
    .coach-card {
        flex: 0 0 calc(50% - 18px);
    }
    .coach-carousel-btn {
        flex: 0 0 36px;
        height: 36px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .coach-card {
        flex: 0 0 calc(100% - 18px);
    }
}

/* 查看大图遮罩 */
.coach-lightbox {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.92);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.coach-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.coach-lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 0 60px rgba(255,140,0,0.3);
}

.coach-lightbox-close {
    position: absolute;
    top: 20px; right: 30px;
    font-size: 36px;
    color: #fff;
    cursor: pointer;
    transition: color 0.2s;
}

.coach-lightbox-close:hover {
    color: var(--primary);
}

.coach-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 48px;
    color: rgba(255,255,255,0.95);
    cursor: pointer;
    padding: 20px;
    transition: color 0.2s;
    user-select: none;
}

.coach-lightbox-nav:hover {
    color: var(--primary);
}

.coach-lightbox-prev { left: 10px; }
.coach-lightbox-next { right: 10px; }
/* ==================== 结构荣誉证书展示 ==================== */
.certificate-showcase .section-title { color: #ffffff; }
.certificate-showcase .section-desc { color: rgba(255,255,255,0.85); }

.certificate-showcase {
    padding: 60px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2D2D2D 100%);
    margin-top: 0;
    border-radius: 12px;
}

.certificate-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding: 0 20px;
}

.certificate-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: #333333;
    padding: 10px;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.certificate-item img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    border-radius: 4px;
    background: #333333;
    padding: 5px;
}

/* 灯箱样式 */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox .close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    cursor: pointer;
    z-index: 2001;
}

.lightbox .close-btn:hover {
    color: #FFB800;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .certificate-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .certificate-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .certificate-item img {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .certificate-grid {
        grid-template-columns: 1fr;
    }
}


/* ==================== 教练资质证书展示 ==================== */
.coach-certificate-showcase .section-title { color: #ffffff; }
.coach-certificate-showcase .section-desc { color: rgba(255,255,255,0.85); }
.coach-certificate-showcase .section-title { color: #ffffff; }
.coach-certificate-showcase .section-desc { color: rgba(255,255,255,0.85); }

.coach-certificate-showcase {
    padding: 60px 20px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2D2D2D 100%);
    margin-top: 0;
    border-radius: 12px;
}

.coach-cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.coach-cert-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 184, 0, 0.2);
}

.coach-cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(255, 184, 0, 0.15);
    border-color: rgba(255, 184, 0, 0.5);
}

.coach-cert-img-wrap {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.3);
}

.coach-cert-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    padding: 10px;
    background: #444444;
}

.coach-cert-info {
    padding: 15px 18px 20px;
}

.coach-cert-info h4 {
    color: #FFB800;
    font-size: 16px;
    margin: 0 0 8px 0;
    font-weight: 600;
    line-height: 1.4;
}

.coach-cert-name {
    color: #ffffff;
    font-size: 14px;
    margin: 0 0 4px 0;
    font-weight: 500;
}

.coach-cert-org {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    margin: 0;
}

/* 响应式 */
@media (max-width: 992px) {
    .coach-cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .coach-cert-grid {
        grid-template-columns: 1fr;
    }
    
    .coach-cert-img-wrap {
        height: 180px;
    }
}