/* 万里国贸之家 - 完整CSS样式文件 */
/* 设计理念：保持统一的视觉风格，采用蓝色为主色调，体现专业性和国际化视野 */

/* ===== 全局样式重置与基础设置 ===== */

/* 统一小卡片样式 */
.unified-card { 
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(30, 64, 175, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.unified-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.unified-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(30, 64, 175, 0.15);
    border-color: var(--primary-color);
}

.unified-card:hover::before {
    transform: scaleX(1);
}

.unified-card h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 10px;
}

.unified-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

/* 核心课程横向网格布局 */
.courses-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 20px;
    overflow-x: auto;
    padding: 20px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-tertiary);
}

.courses-grid::-webkit-scrollbar {
    height: 6px;
}

.courses-grid::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.courses-grid::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.courses-grid::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* 核心课程专用卡片样式 */
.course-category-card {
    min-width: 800px;
    background: linear-gradient(135deg, #f0f7ff 0%, #e0e7ff 100%);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.1);
    border: 2px solid var(--primary-light);
    transition: all 0.4s ease;
    flex-shrink: 0;
}

.course-category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(30, 64, 175, 0.2);
    border-color: var(--primary-color);
}

.course-category-card h4 {
    font-size: 22px;
    color: var(--primary-dark);
    margin-bottom: 20px;
    font-weight: 700;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: var(--primary-light);
    padding: 12px 0;
    border-radius: 10px;
}

.course-items-container {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.course-item {
    background: white;
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--primary-dark);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    border-bottom: 3px solid var(--primary-color);
    transition: all 0.3s ease;
}

.course-item:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.12);
    border-bottom-color: var(--primary-light);
}

.info-card {
    background-color: var(--secondary-blue);
    border-radius: var(--radius-md);
    padding: 15px;
    margin-bottom: 10px;
    transition: var(--transition-base);
    border-left: 4px solid var(--primary-color);
}

/* 重要课程突出样式 */
.important-course {
    background-color: var(--secondary-amber);
    border-left: 4px solid #f59e0b;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.2);
    position: relative;
}

.important-course::after {
    content: "重要课程";
    position: absolute;
    top: -8px;
    right: 10px;
    background-color: #f59e0b;
    color: white;
    font-size: 12px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: normal;
}

.info-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-light);
}

.info-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: block;
    width: 100%;
    height: 100%;
    transition: var(--transition-base);
}

.info-card a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #e0e7ff;
    
    /* 辅助色 */
    --secondary-blue: #dbeafe;
    --secondary-amber: #fef3c7;
    --secondary-green: #dcfce7;
    --secondary-purple: #ede9fe;
    --secondary-orange: #fed7aa;
    --secondary-red: #fecaca;
    
    /* 文本颜色 */
    --text-primary: #333;
    --text-secondary: #666;
    --text-muted: #999;
    --text-light: #fff;
    
    /* 背景颜色 */
    --bg-primary: #fff;
    --bg-secondary: #f9f9f9;
    --bg-tertiary: #f0f0f0;
    
    /* 边框颜色 */
    --border-color: #e0e0e0;
    
    /* 阴影效果 */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* 过渡动画 */
    --transition-base: all 0.3s ease;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-full: 9999px;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    overflow-x: hidden;
}

/* ===== 通用组件样式 ===== */
/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用区块标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title .line {
    width: 100px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 0 auto;
    transition: width var(--transition-base);
}

.section-title:hover .line {
    width: 150px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-base);
    outline: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* 卡片通用样式 */
.card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-medium);
    transition: var(--transition-base);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* ===== 导航栏样式 ===== */
.navbar {
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-light);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
    padding: 5px 0;
}

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

.nav-links a.active::after,
.nav-links a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--primary-color);
    background: none;
    border: none;
    outline: none;
}

/* ===== Banner区域样式 ===== */
.banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-align: center;
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(30, 64, 175, 0.1), rgba(147, 51, 234, 0.1));
    z-index: 1;
}

.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    z-index: 1;
}

/* Banner文字显示 */
.banner-content {
    display: block;
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 20px;
    animation: fadeInUp 1s ease-out;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ===== 微信二维码弹窗样式 ===== */
.qr-code-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease-out;
}

.qr-code-content {
    background-color: var(--bg-primary);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    animation: slideInUp 0.4s ease-out;
    max-width: 90%;
    width: 350px;
}

.close-qr {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-base);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-qr:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.qr-code-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
}

/* ===== 页脚样式 ===== */
.footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 60px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary-color));
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.footer-info,
.footer-contact,
.footer-social {
    flex: 1;
    min-width: 200px;
    margin-bottom: 30px;
}

.footer-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    font-weight: 600;
    color: var(--text-color);
}

.footer-info p {
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.8;
}

.footer-contact h4,
.footer-social h4 {
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 500;
    color: var(--text-color);
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 10px;
    color: var(--text-color);
    display: flex;
    align-items: center;
}

.footer-contact i,
.footer-social i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.footer-social a {
    color: var(--text-color);
    font-size: 20px;
    margin-right: 15px;
    transition: var(--transition-base);
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.1);
}

.footer-social a:hover {
    background-color: rgba(0, 0, 0, 0.2);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 2;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.8;
    margin: 0;
}

/* ===== 回到顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    z-index: 999;
    box-shadow: var(--shadow-light);
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
}

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

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* ===== 主页特定样式 ===== */
/* 专业简介样式 */
.about-section {
    padding: 80px 0;
    background-color: var(--bg-primary);
    position: relative;
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.about-text {
    flex: 1;
    min-width: 300px;
    margin-right: 40px;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.about-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-medium);
    transition: var(--transition-base);
}

.about-image:hover img {
    transform: scale(1.02);
}

.about-image::before {
    content: '';
    position: absolute;
    bottom: -15px;
    right: -15px;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-md);
    background-color: var(--primary-light);
    z-index: -1;
}

/* 培养目标样式 */
.objectives-section {
    padding: 80px 0;
    background-color: var(--bg-secondary);
    position: relative;
}

.objectives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.objective-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    padding: 32px 24px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(30, 64, 175, 0.1);
}

.objective-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.objective-item:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 60px rgba(30, 64, 175, 0.2);
    border-color: var(--primary-color);
}

.objective-item:hover::before {
    transform: scaleX(1);
}

.objective-item .icon {
    font-size: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}

.objective-item:hover .icon {
    transform: scale(1.15) rotate(8deg);
    filter: drop-shadow(0 4px 8px rgba(30, 64, 175, 0.3));
}

.objective-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-primary);
    font-weight: 600;
}

.objective-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 班级简介样式 */
.classes-section {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.class-item {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-base);
}

.class-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.class-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

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

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

.class-info {
    padding: 25px;
}

.class-info h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 600;
}

.class-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}


/* ===== 专业需求页面特定样式 ===== */
.requirements-section {
    padding: 120px 0 80px;
}

.requirements-content {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-medium);
    padding: 40px;
}

.requirement-category {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.requirement-category:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.requirement-category h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-light);
    display: flex;
    align-items: center;
    font-weight: 600;
}

.requirement-category h3 i {
    margin-right: 15px;
    font-size: 28px;
}

/* 课程分类样式 */
.course-category {
    margin-bottom: 35px;
}

.course-category h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.course-tags,
.activity-tags,
.certification-tags,
.tool-tags,
.career-tags,
.city-tags,
.platform-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 25px;
}

.course-tags span {
    background-color: var(--primary-light);
    color: var(--primary-color);
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.course-tags span:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* 信息渠道样式 */
.info-channels {
    margin-top: 25px;
}

.channel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.channel-item {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition-base);
    border: 1px solid var(--border-color);
}

.channel-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.channel-item i {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: var(--transition-base);
}

.channel-item:hover i {
    transform: scale(1.1) rotate(10deg);
}

.channel-item h4 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 600;
}

.channel-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.channel-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.channel-links li {
    margin-bottom: 10px;
}

.channel-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-base);
    font-size: 14px;
}

.channel-links a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* 活动和竞赛样式 */
.activities-section,
.competitions-section,
.certification-section,
.skills-section,
.career-section {
    margin-bottom: 40px;
}

.activities-section h4,
.competitions-section h4,
.certification-section h4,
.skills-section h4,
.career-section h4 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.activities-section h4 i,
.competitions-section h4 i,
.certification-section h4 i,
.skills-section h4 i,
.career-section h4 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.activity-tags span {
    background-color: var(--secondary-blue);
    color: #1e3a8a;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
    display: inline-block;
}

.activity-tags span:hover {
    background-color: #1e3a8a;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.activity-tags a,
.certification-tags a,
.tool-tags a,
.platform-tags a {
    color: inherit;
    text-decoration: none;
    display: inline-block;
    width: 100%;
    height: 100%;
}

/* 竞赛样式 */
.competition-item {
    background-color: var(--secondary-blue);
    padding: 20px;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    margin-bottom: 15px;
    border-left: 4px solid #0284c7;
}

.competition-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.competition-item h5 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #0284c7;
    font-weight: 600;
}

.competition-item h5 a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-base);
}

.competition-item h5 a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.competition-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

/* 考证样式 */
.certification-tags span {
    background-color: var(--secondary-amber);
    color: #92400e;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
}

.certification-tags span:hover {
    background-color: #92400e;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* 专业技能样式 */
.tool-tags span {
    background-color: var(--secondary-green);
    color: #166534;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
}

.tool-tags span:hover {
    background-color: #166534;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* 就业与发展样式 */
.career-tags span {
    background-color: var(--secondary-purple);
    color: #5b21b6;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
}

.career-tags span:hover {
    background-color: #5b21b6;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.city-tags span {
    background-color: var(--secondary-orange);
    color: #c2410c;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
}

.city-tags span:hover {
    background-color: #c2410c;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.platform-tags span {
    background-color: var(--secondary-red);
    color: #b91c1c;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-base);
    cursor: pointer;
}

.platform-tags span:hover {
    background-color: #b91c1c;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* ===== 论坛页面特定样式 ===== */
.forum-section {
    padding: 120px 0 80px;
}

.forum-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.forum-form {
    flex: 1;
    min-width: 300px;
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 35px;
    box-shadow: var(--shadow-medium);
}

.forum-form h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.forum-form h3 i {
    margin-right: 15px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition-base);
    outline: none;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    line-height: 1.6;
}

.btn-submit {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    padding: 14px 30px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
    width: 100%;
}

.btn-submit:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.placeholder-notice {
    background-color: var(--secondary-amber);
    color: #92400e;
    padding: 15px;
    border-radius: var(--radius-sm);
    margin-top: 20px;
    font-size: 14px;
    text-align: center;
    font-weight: 500;
}

.placeholder-notice i {
    margin-right: 8px;
}

.forum-messages {
    flex: 2;
    min-width: 300px;
}

.forum-messages h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.forum-messages h3 i {
    margin-right: 15px;
}

.message-item {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    border-left: 4px solid var(--primary-color);
}

.message-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-hover);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.message-author {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.message-date {
    font-size: 12px;
    color: var(--text-muted);
    background-color: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.message-content {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .container {
        padding: 0 15px;
    }
    
    .logo h1 {
        font-size: 22px;
    }
    
    .nav-links li {
        margin-left: 25px;
    }
    
    .nav-links a {
        font-size: 15px;
    }
}

@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }
    
    .about-text {
        margin-right: 0;
        margin-bottom: 30px;
    }
    
    .channel-grid,
    .competition-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .forum-content {
        gap: 30px;
    }
    
    .unified-card-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 15px;
    }
}

@media (max-width: 768px) {
    /* 移动端导航栏优化 */
    .navbar .container {
        padding: 12px 20px;
    }
    
    .menu-toggle {
        display: block;
        font-size: 28px;
        padding: 8px;
        border-radius: 6px;
        transition: all 0.3s ease;
    }
    
    .menu-toggle:hover {
        background-color: var(--bg-secondary);
        transform: scale(1.1);
    }
    
    .menu-toggle.active {
        transform: rotate(90deg);
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        padding: 25px 20px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 2px solid var(--primary-light);
        z-index: 999;
        pointer-events: none;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }
    
    .nav-links li {
        margin: 8px 0;
        width: 100%;
        text-align: center;
    }
    
    .nav-links a {
        display: block;
        padding: 15px 20px;
        border-radius: 8px;
        font-size: 16px;
        font-weight: 500;
        transition: all 0.3s ease;
        width: 100%;
    }
    
    .nav-links a:hover {
        background-color: var(--primary-light);
        color: var(--primary-color);
        transform: translateX(5px);
    }
    
    .nav-links a.active {
        background-color: var(--primary-color);
        color: white;
    }
    
    /* 移动端Banner优化 */
    .banner {
        height: 50vh;
        background-size: 200% 200%;
        animation: gradientShift 12s ease infinite;
    }
    
    .banner-content {
        display: block;
        padding: 20px;
    }
    
    .banner-content h2 {
        font-size: 24px;
        margin-bottom: 10px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
    
    .banner-content h3 {
        font-size: 20px;
        margin-bottom: 15px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
    
    .banner-content p {
        font-size: 16px;
        line-height: 1.6;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
    
    /* 移动端标题优化 */
    .section-title {
        margin-bottom: 40px;
    }
    
    .section-title h2 {
        font-size: 26px;
        line-height: 1.3;
    }
    
    .section-title .line {
        width: 80px;
        height: 3px;
    }
    
    /* 移动端卡片布局优化 */
    .unified-card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }
    
    .unified-card {
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .unified-card h4 {
        font-size: 16px;
        margin-bottom: 12px;
        padding-bottom: 8px;
    }
    
    .info-card {
        padding: 12px 15px;
        margin-bottom: 8px;
        font-size: 14px;
    }
    
    /* 移动端页脚优化 */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-info,
    .footer-contact,
    .footer-social {
        margin-bottom: 25px;
        width: 100%;
    }
    
    .footer-info h3 {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .footer-contact h4,
    .footer-social h4 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-contact p {
        font-size: 14px;
        margin-bottom: 8px;
        justify-content: center;
    }
    
    .footer-social a {
        width: 45px;
        height: 45px;
        line-height: 45px;
        font-size: 18px;
        margin: 0 10px;
    }
    
    /* 移动端课程标签优化 */
    .course-tags,
    .activity-tags,
    .certification-tags,
    .tool-tags,
    .career-tags,
    .city-tags,
    .platform-tags {
        justify-content: center;
        gap: 8px;
        margin-bottom: 20px;
    }
    
    .course-tags span,
    .activity-tags span,
    .certification-tags span,
    .tool-tags span,
    .career-tags span,
    .city-tags span,
    .platform-tags span {
        padding: 8px 12px;
        font-size: 12px;
        border-radius: 15px;
    }
    
    /* 移动端内容区域优化 */
    .requirements-content {
        padding: 20px;
        margin: 0 10px;
    }
    
    .requirement-category {
        margin-bottom: 30px;
        padding-bottom: 20px;
    }
    
    .requirement-category h3 {
        font-size: 20px;
        margin-bottom: 20px;
        padding-bottom: 10px;
    }
    
    .requirement-category h3 i {
        font-size: 22px;
        margin-right: 10px;
    }
    
    /* 移动端论坛优化 */
    .forum-form,
    .forum-messages {
        flex: none;
        width: 100%;
    }
    
    .message-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .message-item {
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .message-content {
        font-size: 14px;
        line-height: 1.6;
    }
    
    /* 移动端培养目标优化 */
    .objectives-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .objective-item {
        padding: 25px 20px;
    }
    
    .objective-item .icon {
        font-size: 40px;
        margin-bottom: 15px;
    }
    
    .objective-item h3 {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .objective-item p {
        font-size: 14px;
        line-height: 1.6;
    }
    
}

@media (max-width: 576px) {
    /* 超小屏幕优化 */
    .navbar .container {
        padding: 10px 15px;
    }
    
    .logo h1 {
        font-size: 18px;
    }
    
    .menu-toggle {
        font-size: 24px;
        padding: 6px;
    }
    
    .nav-links {
        top: 65px;
        padding: 20px 15px;
    }
    
    .nav-links a {
        padding: 12px 15px;
        font-size: 15px;
    }
    
    .banner {
        height: 45vh;
        margin-top: 65px;
        background-size: 150% 150%;
        animation: gradientShift 15s ease infinite;
    }
    
    .banner-content h2 {
        font-size: 20px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
    
    .banner-content h3 {
        font-size: 18px;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
    
    .banner-content p {
        font-size: 14px;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }
    
    .section-title {
        margin-bottom: 30px;
    }
    
    .section-title h2 {
        font-size: 22px;
    }
    
    .section-title .line {
        width: 60px;
        height: 2px;
    }
    
    .about-section,
    .objectives-section,
    .classes-section {
        padding: 50px 0;
    }
    
    .requirements-section,
    .forum-section {
        padding: 80px 0 50px;
    }
    
    .unified-card {
        padding: 15px;
    }
    
    .unified-card h4 {
        font-size: 15px;
    }
    
    .info-card {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .requirements-content {
        padding: 15px;
        margin: 0 5px;
    }
    
    .requirement-category h3 {
        font-size: 18px;
    }
    
    .requirement-category h3 i {
        font-size: 20px;
    }
    
    .objective-item {
        padding: 20px 15px;
    }
    
    .objective-item .icon {
        font-size: 36px;
    }
    
    .objective-item h3 {
        font-size: 16px;
    }
    
    .objective-item p {
        font-size: 13px;
    }
    
    
    .footer {
        padding: 30px 0 15px;
    }
    
    .footer-info h3 {
        font-size: 18px;
    }
    
    .footer-contact h4,
    .footer-social h4 {
        font-size: 15px;
    }
    
    .footer-contact p {
        font-size: 13px;
    }
    
    .footer-social a {
        width: 40px;
        height: 40px;
        line-height: 40px;
        font-size: 16px;
        margin: 0 8px;
    }
}

/* 移动端专用样式 */
@media (max-width: 768px) {
    /* 触摸友好的按钮 */
    .btn, .btn-primary, .btn-submit, .btn-secondary {
        min-height: 44px;
        padding: 12px 20px;
        font-size: 16px;
        border-radius: 8px;
    }
    
    /* 触摸友好的输入框 */
    .form-group input,
    .form-group textarea {
        min-height: 44px;
        font-size: 16px;
        padding: 12px 15px;
    }
    
    /* 移动端滚动优化 */
    .courses-grid {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    
    .courses-grid::-webkit-scrollbar {
        display: none;
    }
    
    /* 移动端卡片阴影优化 */
    .unified-card,
    .info-card,
    .objective-item {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    
    .unified-card:hover,
    .info-card:hover,
    .objective-item:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    
    /* 移动端文字优化 */
    body {
        font-size: 14px;
        line-height: 1.6;
    }
    
    h1, h2, h3, h4, h5, h6 {
        line-height: 1.3;
    }
    
    p {
        line-height: 1.6;
    }
    
    /* 移动端间距优化 */
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 40px 0;
    }
    
    /* 移动端图片优化 */
    img {
        max-width: 100%;
        height: auto;
    }
    
    .about-image img {
        border-radius: 8px;
    }
    
    /* 移动端动画优化 */
    .unified-card,
    .info-card,
    .objective-item {
        transition: all 0.3s ease;
    }
    
    /* 移动端焦点优化 */
    .form-group input:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 2px rgba(30, 64, 175, 0.2);
    }
    
    /* 移动端按钮优化 */
    .btn-submit:active {
        transform: scale(0.98);
    }
    
    /* 移动端导航栏背景模糊效果 */
    .navbar {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        background-color: rgba(255, 255, 255, 0.95);
    }
}

/* ===== 动画效果 ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

/* ===== 滚动动画支持 ===== */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}