/* ===== 全局样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --text-dark: #1d1d1f;
    --text-light: #6e6e73;
    --text-white: #f5f5f7;
    --bg-white: #ffffff;
    --bg-light: #fbfbfd;
    --border-radius: 18px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 48px rgba(0, 0, 0, 0.12);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
    /* 移动端触摸优化 */
    -webkit-tap-highlight-color: rgba(102, 126, 234, 0.2);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 44px;
}

.nav-logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: -0.5px;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition);
    opacity: 0.8;
}

.nav-menu a:hover {
    opacity: 1;
}

.nav-menu .nav-cta {
    background: var(--text-dark);
    color: var(--text-white);
    padding: 8px 16px;
    border-radius: 20px;
    opacity: 1;
}

.nav-menu .nav-cta:hover {
    background: var(--primary-color);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ===== Hero 区域 ===== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    text-align: center;
    color: var(--text-white);
    position: relative;
    z-index: 1;
    padding: 0 20px;
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 16px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 32px;
    font-weight: 500;
    margin-bottom: 12px;
    opacity: 0.95;
}

.hero-description {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 40px;
    opacity: 0.9;
    letter-spacing: 0.5px;
}

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

.btn {
    padding: 14px 32px;
    border-radius: 24px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    display: inline-block;
    cursor: pointer;
    border: none;
    /* 移动端触摸区域优化 - 至少44x44px */
    min-height: 44px;
    min-width: 100px;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
    text-align: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

.scroll-dot {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    position: relative;
}

.scroll-dot::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 8px; opacity: 1; }
    100% { top: 32px; opacity: 0; }
}

/* ===== 动画效果 ===== */
.fade-in {
    animation: fadeIn 1s ease-out;
}

.fade-in-delay {
    animation: fadeIn 1s ease-out 0.3s both;
}

.fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.6s both;
}

.fade-in-delay-3 {
    animation: fadeIn 1s ease-out 0.9s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ===== 特色亮点 ===== */
.highlights {
    padding: 100px 0;
    background: var(--bg-white);
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.highlight-item {
    text-align: center;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    background: var(--bg-light);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.highlight-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.highlight-item h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.highlight-item p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== 章节标题 ===== */
.section-title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -1px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 20px;
    text-align: center;
    color: var(--text-light);
    margin-bottom: 60px;
}

/* ===== 课程展示 ===== */
.courses {
    padding: 120px 0;
    background: var(--bg-light);
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.course-card {
    background: var(--bg-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.course-card:hover::before {
    opacity: 1;
}

.course-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: #f5f5f5;
}

/* 为每个课程添加舞蹈主题装饰 */
.course-image::before {
    content: '';
    position: absolute;
    font-size: 120px;
    opacity: 0.15;
    z-index: 1;
    font-family: Arial, sans-serif;
}

/* 中国舞 - 扇子图案 */
.course-card:nth-child(1) .course-image::before {
    content: '🎭';
}

/* 芭蕾舞 - 芭蕾舞者 */
.course-card:nth-child(2) .course-image::before {
    content: '🩰';
}

/* 街舞 - 音乐符号 */
.course-card:nth-child(3) .course-image::before {
    content: '🎵';
}

/* 拉丁舞 - 玫瑰 */
.course-card:nth-child(4) .course-image::before {
    content: '🌹';
}

/* 成人形体 - 女性舞者 */
.course-card:nth-child(5) .course-image::before {
    content: '💃';
}

/* 现代舞 - 星星 */
.course-card:nth-child(6) .course-image::before {
    content: '✨';
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.course-card:hover .course-image img {
    transform: scale(1.1) rotate(2deg);
}

.course-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: all 0.4s ease;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.course-card:hover .course-icon {
    transform: translate(-50%, -50%) scale(1.1);
}

.course-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-dark);
    padding: 6px 16px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    z-index: 2;
}

.course-card:hover .course-badge {
    transform: translateY(-4px) scale(1.05);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.course-content {
    padding: 32px;
}

.course-content h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.course-age {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.course-desc {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
}

.course-features {
    list-style: none;
    margin-bottom: 24px;
}

.course-features li {
    font-size: 14px;
    color: var(--text-dark);
    padding: 8px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    padding-left: 20px;
    transition: all 0.3s ease;
}

.course-card:hover .course-features li {
    padding-left: 24px;
}

.course-card:hover .course-features li:nth-child(1) {
    transition-delay: 0.1s;
}

.course-card:hover .course-features li:nth-child(2) {
    transition-delay: 0.2s;
}

.course-card:hover .course-features li:nth-child(3) {
    transition-delay: 0.3s;
}

.course-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.course-features li:last-child {
    border-bottom: none;
}

.course-btn {
    display: block;
    text-align: center;
    padding: 12px 24px;
    background: var(--text-dark);
    color: var(--text-white);
    text-decoration: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 2;
}

.course-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.course-btn:hover::before {
    left: 100%;
}

.course-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* ===== 师资力量 ===== */
.teachers {
    padding: 120px 0;
    background: var(--bg-white);
}

.teacher-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 在桌面端显示为3列 */
@media (min-width: 992px) {
    .teacher-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 在平板端显示为2列 */
@media (min-width: 768px) and (max-width: 991px) {
    .teacher-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.teacher-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.teacher-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.03) 0%, rgba(118, 75, 162, 0.03) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.teacher-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.teacher-card:hover::before {
    opacity: 1;
}

.teacher-image {
    width: 160px;
    height: 160px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: all 0.5s ease;
}

.teacher-image::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(102, 126, 234, 0.3), transparent);
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.teacher-card:hover .teacher-image {
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.3);
}

.teacher-card:hover .teacher-image::after {
    opacity: 1;
    animation: shine 1.5s ease-in-out infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

.teacher-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    border-radius: 50%;
    transition: transform 0.5s ease;
}

/* 马静宜头像位置调整 - 完整显示 */
.teacher-card:nth-child(2) .teacher-image img {
    object-position: center 80%;
}

/* 汪紫薇头像位置调整 - 完整显示头部 */
.teacher-card:nth-child(5) .teacher-image img {
    object-position: center top;
}

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

.teacher-placeholder {
    font-size: 56px;
    font-weight: 700;
    color: white;
}

.teacher-info h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.teacher-card:hover .teacher-info h3 {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.teacher-title {
    font-size: 16px;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.teacher-card:hover .teacher-title {
    transform: translateX(4px);
}

.teacher-school {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
    font-weight: 500;
    line-height: 1.5;
}

.teacher-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.teacher-card:hover .teacher-desc {
    color: var(--text-dark);
    letter-spacing: 0.3px;
}

.teacher-achievements {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.achievement-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    opacity: 0.9;
}

.teacher-card:hover .achievement-tag {
    opacity: 1;
    transform: translateY(-2px) scale(1.05);
}

.teacher-card:hover .achievement-tag:nth-child(1) {
    transition-delay: 0.1s;
}

.teacher-card:hover .achievement-tag:nth-child(2) {
    transition-delay: 0.2s;
}

.teacher-card:hover .achievement-tag:nth-child(3) {
    transition-delay: 0.3s;
}

.achievement-tag:hover {
    transform: translateY(-4px) scale(1.1) !important;
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.5);
}

/* ===== 学员风采 ===== */
.gallery {
    padding: 120px 0;
    background: var(--bg-light);
}

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

.gallery-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.gallery-image-container {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.gallery-image-container img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    transform: translateY(100%);
    transition: var(--transition);
}

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

.gallery-overlay h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
}

.gallery-overlay p {
    font-size: 15px;
    opacity: 0.9;
}

/* ===== 商业演出・企业年会编排 ===== */
.commercial {
    padding: 120px 0;
    background: var(--bg-light);
}

.commercial-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.commercial-card {
    background: var(--bg-white);
    padding: 48px 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.commercial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.commercial-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.commercial-card h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.commercial-card p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 24px;
}

.commercial-features {
    list-style: none;
    padding: 0;
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

.commercial-features li {
    font-size: 15px;
    color: var(--text-dark);
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.commercial-features li::before {
    content: '✓ ';
    color: var(--primary-color);
    font-weight: 700;
    font-size: 18px;
}

.commercial-features li:last-child {
    border-bottom: none;
}

.commercial-highlight {
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 48px 60px;
    border-radius: var(--border-radius);
    color: white;
}

.commercial-summary {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.commercial-highlight .btn {
    background: white;
    color: var(--primary-color);
}

.commercial-highlight .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

/* 响应式设计 - 商业演出 */
@media (max-width: 992px) {
    .commercial-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .commercial {
        padding: 80px 0;
    }

    .commercial-card {
        padding: 36px 28px;
    }

    .commercial-card h3 {
        font-size: 24px;
    }

    .commercial-highlight {
        padding: 36px 32px;
    }

    .commercial-summary {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .commercial-card {
        padding: 28px 20px;
    }

    .commercial-icon {
        font-size: 48px;
    }

    .commercial-highlight {
        padding: 28px 24px;
    }

    .commercial-summary {
        font-size: 15px;
    }
}

/* ===== 关于我们 ===== */
.about {
    padding: 120px 0;
    background: var(--bg-white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-intro {
    font-size: 16px;
    line-height: 1.8;
    color: var(--primary-color);
    margin-bottom: 24px;
    text-align: center;
    font-weight: 600;
}

.about-text {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 24px;
    text-align: center;
}

.about-notice {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-dark);
    margin: 32px auto 24px;
    padding: 20px 28px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
    text-align: left;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 60px;
}

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

.stat-number {
    font-size: 56px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
    letter-spacing: -2px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
}

/* ===== 联系我们 ===== */
.contact {
    padding: 120px 0;
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-form {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    position: relative;
    margin-bottom: 28px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group label {
    position: absolute;
    left: 16px;
    top: 16px;
    color: var(--text-light);
    font-size: 15px;
    transition: var(--transition);
    pointer-events: none;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    left: 12px;
    font-size: 12px;
    background: var(--bg-white);
    padding: 0 6px;
    color: var(--primary-color);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236e6e73' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.info-item {
    display: flex;
    gap: 20px;
    padding: 32px;
    background: var(--bg-white);
    border-radius: 16px;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.info-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.info-icon {
    font-size: 40px;
    flex-shrink: 0;
    line-height: 1;
}

.info-content h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.info-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

.info-content a.phone-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.info-content a.phone-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

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

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-section h3 {
    font-size: 20px;
}

.footer-section h4 {
    font-size: 16px;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: var(--text-white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    opacity: 1;
    padding-left: 4px;
}

/* 关注我们标题居中 */
.footer-section:has(.qrcode-container) h4 {
    text-align: center;
}

.qrcode-container {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.qrcode-item {
    text-align: center;
    flex: 1;
    max-width: 120px;
}

.qrcode-img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    margin-bottom: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    object-fit: cover;
    object-position: center;
    cursor: pointer;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
}

.qrcode-img:hover {
    transform: scale(1.5);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    z-index: 10;
    position: relative;
}

.qrcode-item p {
    font-size: 12px;
    opacity: 0.8;
}

@media (max-width: 768px) {
    .qrcode-container {
        gap: 15px;
        flex-wrap: wrap;
    }
    
    .qrcode-item {
        flex: 0 0 calc(33.333% - 10px);
        max-width: 90px;
    }
    
    .qrcode-img {
        width: 80px;
        height: 80px;
    }
    
    .qrcode-item p {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .qrcode-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .qrcode-item {
        flex: 0 0 auto;
        max-width: 100px;
    }
    
    .qrcode-img {
        width: 90px;
        height: 90px;
    }
}

.social-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.social-link {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    color: var(--text-white);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 14px;
}

.footer-bottom p {
    margin: 4px 0;
}

/* ===== 在线客服样式 ===== */
.customer-service {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.service-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 110px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.service-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.6);
}

.service-button span {
    position: absolute;
    opacity: 0;
    transition: all 0.3s ease;
    white-space: nowrap;
    right: 70px;
    background: rgba(102, 126, 234, 0.9);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
}

.service-button:hover span {
    opacity: 1;
    right: 80px;
}

.service-icon {
    font-size: 24px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.service-popup {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 300px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.service-popup.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid #f0f0f0;
    border-radius: 12px 12px 0 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.service-header h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.close-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.service-content {
    padding: 20px;
    text-align: center;
}

.service-content p {
    margin: 0 0 15px;
    color: #333;
    font-size: 14px;
}

.service-qrcode {
    margin: 15px 0;
}

.service-qrcode img {
    width: 150px;
    height: 150px;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}

.service-contact {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.service-contact p {
    margin: 5px 0;
    color: #666;
    font-size: 13px;
}

@media (max-width: 768px) {
    .customer-service {
        bottom: 20px;
        right: 20px;
    }
    
    .service-button {
        width: 50px;
        height: 50px;
    }
    
    .service-icon {
        font-size: 20px;
    }
    
    .service-popup {
        width: 280px;
        right: -10px;
    }
}

/* ===== 课程表横幅样式 ===== */
.schedule-banner {
    padding: 100px 0;
    background: var(--bg-white);
    position: relative;
    overflow: hidden;
}

.schedule-banner-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.schedule-banner-icon {
    font-size: 72px;
    margin-bottom: 20px;
    animation: bounce 2s infinite;
}

.schedule-banner-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
    letter-spacing: -1px;
}

.schedule-banner-subtitle {
    font-size: 20px;
    margin-bottom: 32px;
    color: var(--text-light);
}

.schedule-banner-btn {
    font-size: 18px;
    padding: 16px 40px;
}

/* 响应式设计 - 课程表横幅 */
@media (max-width: 768px) {
    .schedule-banner {
        padding: 80px 0;
    }

    .schedule-banner-icon {
        font-size: 56px;
    }

    .schedule-banner-title {
        font-size: 36px;
    }

    .schedule-banner-subtitle {
        font-size: 18px;
    }

    .schedule-banner-btn {
        font-size: 16px;
        padding: 14px 32px;
    }
}

@media (max-width: 480px) {
    .schedule-banner {
        padding: 60px 0;
    }

    .schedule-banner-icon {
        font-size: 48px;
    }

    .schedule-banner-title {
        font-size: 28px;
    }

    .schedule-banner-subtitle {
        font-size: 16px;
    }

    .schedule-banner-btn {
        font-size: 15px;
        padding: 12px 28px;
    }
}

/* ===== 视频展示样式 ===== */
.section-subheader {
    text-align: center;
    margin-bottom: 40px;
}

.subsection-title {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.subsection-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    width: 60px;
    height: 3px;
    background: linear-gradient(45deg, #e91e63, #9c27b0);
    transform: translateX(-50%);
}

.subsection-subtitle {
    font-size: 16px;
    color: #666;
    margin-top: 20px;
}

.video-section {
    margin-bottom: 60px;
}

.video-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.video-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.video-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    overflow: hidden;
    background: #f0f0f0;
}

/* 为不同视频添加不同的渐变背景作为封面 */
.video-item:nth-child(1) .video-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-item:nth-child(2) .video-container {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-item:nth-child(3) .video-container {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* 视频封面文字 */
.video-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: Arial, sans-serif;
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-align: center;
    z-index: 1;
    pointer-events: none;
}

.video-item:nth-child(1) .video-container::before {
    content: '🎭 北京石景山商演';
}

.video-item:nth-child(2) .video-container::before {
    content: '💃 少儿舞蹈世界演出';
}

.video-item:nth-child(3) .video-container::before {
    content: '🌟 北京石景山女团舞商演';
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
    z-index: 2;
}

/* 当视频加载成功后，隐藏背景文字 */
.video-container[loaded]::before {
    display: none;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.video-container:hover .video-overlay {
    opacity: 0;
}

.play-button {
    font-size: 60px;
    color: white;
    opacity: 0.9;
    transition: all 0.3s ease;
    pointer-events: none;
}

.video-container:hover .play-button {
    transform: scale(1.1);
    opacity: 0.7;
}

.video-info {
    padding: 20px;
}

.video-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.video-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.photo-section {
    margin-top: 60px;
}

/* 响应式设计 - 视频展示 */
@media (max-width: 992px) {
    .video-gallery {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
    
    .subsection-title {
        font-size: 26px;
    }
}

@media (max-width: 768px) {
    .video-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .section-subheader {
        margin-bottom: 30px;
    }
    
    .subsection-title {
        font-size: 24px;
    }
    
    .subsection-subtitle {
        font-size: 15px;
    }
    
    .video-section {
        margin-bottom: 40px;
    }
    
    .photo-section {
        margin-top: 40px;
    }
}

@media (max-width: 576px) {
    .subsection-title {
        font-size: 22px;
    }
    
    .subsection-subtitle {
        font-size: 14px;
    }
    
    .video-info {
        padding: 15px;
    }
    
    .video-info h4 {
        font-size: 16px;
    }
    
    .video-info p {
        font-size: 13px;
    }
    
    .play-button {
        font-size: 50px;
    }
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }

    .nav-container {
        padding: 0 24px;
    }

    .hero-title {
        font-size: 56px;
    }

    .hero-subtitle {
        font-size: 28px;
    }

    .section-title {
        font-size: 40px;
    }

    .contact-wrapper {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    /* 导航栏Logo在移动端优化 */
    .nav-logo {
        font-size: 16px;
        max-width: 200px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .back-to-top {
        width: 45px;
        height: 45px;
        font-size: 16px;
        bottom: 20px;
        right: 70px;
    }

    .nav-menu {
        position: fixed;
        top: 44px;
        left: -100%;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 32px 0;
        gap: 0;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
        padding: 16px 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        min-height: 500px;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 22px;
    }

    .hero-description {
        font-size: 16px;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .highlights,
    .courses,
    .teachers,
    .gallery,
    .about,
    .contact {
        padding: 80px 0;
    }

    .course-grid,
    .teacher-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    /* 教师卡片移动端优化 */
    .teacher-card {
        padding: 32px 20px;
    }

    .teacher-image {
        width: 140px;
        height: 140px;
    }

    .achievement-tag {
        font-size: 10px;
        padding: 3px 8px;
    }

    /* 底部版权信息移动端优化 */
    .footer-bottom p {
        font-size: 12px;
        line-height: 1.6;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    /* 小屏手机Logo优化 */
    .nav-logo {
        font-size: 14px;
        max-width: 150px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        padding: 14px 28px;
        font-size: 15px;
    }

    .highlight-grid {
        grid-template-columns: 1fr;
    }

    /* 教师卡片小屏优化 */
    .teacher-image {
        width: 120px;
        height: 120px;
    }

    .teacher-info h3 {
        font-size: 20px;
    }

    .teacher-title {
        font-size: 14px;
    }

    .teacher-desc {
        font-size: 12px;
    }

    .achievement-tag {
        font-size: 9px;
        padding: 2px 6px;
    }

    /* 底部版权小屏优化 */
    .footer-bottom p {
        font-size: 11px;
        word-break: break-all;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ===== 课程表样式 ===== */
.section {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

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

.schedule-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.tab-btn {
    padding: 12px 32px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 24px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.schedule-content {
    position: relative;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

.schedule-table {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table-header {
    display: grid;
    grid-template-columns: 120px repeat(5, 1fr);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
}

#weekend .table-header {
    grid-template-columns: 120px repeat(2, 1fr);
}

.table-row {
    display: grid;
    grid-template-columns: 120px repeat(5, 1fr);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

#weekend .table-row {
    grid-template-columns: 120px repeat(2, 1fr);
}

.table-row:last-child {
    border-bottom: none;
}

.time-cell,
.day-cell,
.course-cell {
    padding: 16px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.time-cell {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-dark);
}

.day-cell {
    font-size: 15px;
}

.course-cell {
    background: white;
    font-size: 14px;
    color: var(--text-dark);
    border-right: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.course-cell:last-child {
    border-right: none;
}

.course-cell:not(.empty):hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transform: scale(1.05);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.course-cell.empty {
    background: var(--bg-light);
}

.teacher {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

.schedule-note {
    margin-top: 40px;
    text-align: center;
}

.schedule-note p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 20px;
}

.schedule-note i {
    color: var(--primary-color);
    margin-right: 8px;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 12px 28px;
    border-radius: 24px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* 响应式设计 - 课程表 */
@media (max-width: 768px) {
    .schedule-table {
        overflow-x: auto;
    }

    .table-header,
    .table-row {
        min-width: 600px;
    }

    .schedule-tabs {
        flex-direction: column;
        gap: 12px;
    }

    .tab-btn {
        width: 100%;
    }
}

/* ===== 分享按钮样式 ===== */
.share-button {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 3;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.share-button:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.share-button i {
    color: var(--text-dark);
    font-size: 16px;
    transition: color 0.3s ease;
}

.share-button:hover i {
    color: white;
}

/* 分享弹窗样式 */
.share-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.share-modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.share-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 32px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

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

.share-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.share-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
}

.close-share {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 18px;
    color: var(--text-dark);
}

.close-share:hover {
    background: var(--text-dark);
    color: white;
    transform: rotate(90deg);
}

.share-body {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.share-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    border-radius: 12px;
    background: var(--bg-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.share-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.share-item i {
    font-size: 32px;
    color: var(--primary-color);
}

.share-item span {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

@media (max-width: 576px) {
    .share-body {
        grid-template-columns: repeat(2, 1fr);
    }

    .share-content {
        padding: 24px;
    }
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.back-to-top:active {
    transform: translateY(-2px);
}

/* ===== 移动端快速拨号按钮 ===== */
.mobile-call-btn {
    position: fixed;
    bottom: 140px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border-radius: 50%;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
    z-index: 9998;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.mobile-call-btn span {
    font-size: 10px;
    margin-top: 2px;
    font-weight: 500;
}

.mobile-call-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.6);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
    }
    50% {
        box-shadow: 0 4px 25px rgba(245, 87, 108, 0.8);
    }
}

/* 电话链接样式 */
.phone-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.phone-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* ===== 移动端优化 ===== */
@media (max-width: 768px) {
    .mobile-call-btn {
        display: flex;
        bottom: 100px;
        right: 20px;
        width: 55px;
        height: 55px;
    }

    .back-to-top {
        bottom: 30px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .mobile-call-btn {
        width: 50px;
        height: 50px;
        bottom: 85px;
        right: 15px;
    }

    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 25px;
        right: 15px;
        font-size: 16px;
    }
}

/* ===== 表单错误提示样式 ===== */
.form-group {
    position: relative;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #f5576c;
    animation: shake 0.3s ease;
}

.error-message {
    display: block;
    color: #f5576c;
    font-size: 12px;
    margin-top: 5px;
    animation: fadeInUp 0.3s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

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

/* ===== 百度地图容器 ===== */
.map-container {
    width: 100%;
    height: 450px;
    margin-top: 50px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 768px) {
    .map-container {
        height: 350px;
        margin-top: 30px;
    }
}