/* 全局样式 */
:root {
    --primary-color: #4568dc;
    --primary-dark: #3a56b4;
    --secondary-color: #b06ab3;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #ddd;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* 颜色主题变量 */
.blue-theme {
    --primary-color: #2962ff;
    --primary-dark: #0039cb;
    --secondary-color: #00b0ff;
}

.purple-theme {
    --primary-color: #6a1b9a;
    --primary-dark: #38006b;
    --secondary-color: #9c27b0;
}

.green-theme {
    --primary-color: #2e7d32;
    --primary-dark: #005005;
    --secondary-color: #43a047;
}

/* 深色模式变量 */
.dark-theme {
    --primary-color: #6d8dff;
    --primary-dark: #4568dc;
    --secondary-color: #d080d8;
    --text-color: #e1e1e1;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --border-color: #444;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* 字体大小设置 */
.font-size-small {
    font-size: 0.9rem;
}

.font-size-normal {
    font-size: 1rem;
}

.font-size-large {
    font-size: 1.2rem;
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: var(--transition);
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 15px;
}

section {
    padding: 60px 0;
}

.hidden {
    display: none;
}

/* 动画效果 */
.section-fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.card-clicked {
    animation: pulse 0.3s ease;
}

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

/* 深色模式切换 */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
    background-color: var(--card-bg);
    padding: 8px 12px;
    border-radius: 30px;
    box-shadow: var(--box-shadow);
}

.theme-switch {
    display: inline-block;
    height: 24px;
    position: relative;
    width: 50px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: #ccc;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
}

.slider:before {
    background-color: white;
    bottom: 4px;
    content: "";
    height: 16px;
    left: 4px;
    position: absolute;
    transition: .4s;
    width: 16px;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.theme-switch-wrapper em {
    margin-left: 10px;
    font-size: 0.9rem;
}

/* 颜色主题选择器 */
.theme-selector {
    position: fixed;
    bottom: 100px;
    right: 20px;
    z-index: 100;
}

.theme-selector-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    border: none;
    box-shadow: var(--box-shadow);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-selector-btn:hover {
    transform: rotate(30deg);
}

.theme-options {
    position: absolute;
    bottom: 50px;
    right: 0;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    width: 120px;
    overflow: hidden;
    transition: var(--transition);
}

.theme-option {
    padding: 10px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.theme-option:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* 字体大小调整器 */
.font-size-adjuster {
    position: fixed;
    bottom: 160px;
    right: 20px;
    z-index: 100;
}

.font-size-btn {
    background-color: var(--card-bg);
    border: none;
    box-shadow: var(--box-shadow);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.font-size-options {
    position: absolute;
    bottom: 40px;
    right: 0;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--box-shadow);
    width: 80px;
    overflow: hidden;
    transition: var(--transition);
}

.font-size-option {
    padding: 10px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.font-size-option:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* 通知系统 */
.notifications-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.toast-notification {
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 10px 20px;
    border-radius: 4px;
    box-shadow: var(--box-shadow);
    max-width: 300px;
    text-align: center;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
}

.toast-notification.show {
    opacity: 1;
    transform: translateY(0);
}

/* 引导提示 */
.welcome-tour {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tour-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
}

.tour-content {
    position: relative;
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    max-width: 500px;
    z-index: 1;
    animation: zoomIn 0.5s ease;
}

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.tour-content h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.tour-content ul {
    margin: 15px 0;
    padding-left: 20px;
}

.tour-content li {
    margin-bottom: 8px;
}

.tour-next-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    margin-top: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.tour-next-btn:hover {
    background-color: var(--primary-dark);
}

.element-highlight {
    position: absolute;
    border: 2px dashed var(--primary-color);
    border-radius: 8px;
    z-index: 9998;
    pointer-events: none;
    animation: pulse 1.5s infinite;
}

.highlight-tooltip {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 0.9rem;
    white-space: nowrap;
}

.highlight-tooltip:after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--primary-color) transparent transparent transparent;
}

/* 个性化推荐区域 */
.personalized-recommendations {
    background-color: var(--bg-color);
    padding: 60px 0;
}

.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.recommendation-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.recommendation-card:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background-color: var(--primary-color);
}

.recommendation-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.recommendation-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.recommendation-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.recommendation-link {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 4px;
    margin-top: 15px;
    transition: var(--transition);
}

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

/* 解决方案结果样式优化 */
.solution-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--box-shadow);
    padding: 25px;
    margin-bottom: 30px;
    position: relative;
    border-top: 5px solid var(--primary-color);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.solution-success-rate {
    position: absolute;
    top: 25px;
    right: 25px;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
}

.solution-success-rate span {
    font-weight: 700;
    color: var(--success-color);
}

.solution-steps {
    margin: 15px 0;
    padding-left: 20px;
}

.solution-steps li {
    margin-bottom: 10px;
    position: relative;
}

.solution-resources {
    margin-top: 20px;
    background-color: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
}

.resource-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.resource-badge {
    background-color: rgba(69, 104, 220, 0.1);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.solution-save-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 15px;
    margin-top: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.solution-save-btn:hover {
    background-color: var(--primary-dark);
}

/* 社区帖子样式优化 */
.post-card {
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.post-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

.post-author {
    font-weight: 600;
    color: var(--primary-color);
}

.post-content {
    line-height: 1.8;
}

.post-footer {
    display: flex;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.support-btn, .reply-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    margin-right: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.support-btn:before {
    content: "👍";
    margin-right: 5px;
}

.reply-btn:before {
    content: "💬";
    margin-right: 5px;
}

.reply-form {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
}

.reply-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    resize: vertical;
    min-height: 80px;
    margin-bottom: 15px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

/* 自我评估模态框 */
.assessment-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.assessment-content {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.7;
    transition: var(--transition);
}

.close-modal:hover {
    opacity: 1;
}

.assessment-questions {
    margin: 20px 0;
}

.question {
    margin-bottom: 20px;
}

.question p {
    font-weight: 600;
    margin-bottom: 10px;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.options label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.options input {
    margin-right: 10px;
}

.submit-assessment {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    cursor: pointer;
    transition: var(--transition);
}

.submit-assessment:hover {
    background-color: var(--primary-dark);
}

.assessment-result {
    text-align: center;
}

.risk-level {
    font-weight: 700;
    color: var(--primary-color);
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 25px;
}

.action-btn {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    transition: var(--transition);
}

.action-btn:hover {
    background-color: var(--primary-dark);
}

/* 视频模态框 */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.video-modal-content {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    max-width: 800px;
    width: 90%;
    position: relative;
}

.video-container {
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
    background-color: #000;
}

.video-placeholder {
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

.video-description {
    margin-top: 20px;
    line-height: 1.8;
}

/* 求助模态框 */
.help-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.help-modal-content {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    max-width: 800px;
    width: 90%;
    position: relative;
}

.help-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.help-option {
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.help-option h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.call-btn, .chat-btn, .report-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 15px;
    margin-top: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.call-btn:hover, .chat-btn:hover, .report-btn:hover {
    background-color: var(--primary-dark);
}

/* 顶部横幅 */
.hero-banner {
    background: linear-gradient(135deg, #4568dc, #b06ab3);
    color: white;
    text-align: center;
    padding: 100px 20px;
    position: relative;
    overflow: hidden;
}

.hero-banner:before {
    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" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" fill-opacity="1" d="M0,192L48,181.3C96,171,192,149,288,138.7C384,128,480,128,576,149.3C672,171,768,213,864,218.7C960,224,1056,192,1152,176C1248,160,1344,160,1392,160L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: center;
    opacity: 0.6;
}

.hero-banner h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    position: relative;
}

.hero-banner p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    position: relative;
}

/* 角色选择器 */
.role-selector {
    margin-top: 30px;
    position: relative;
}

.role-selector p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.role-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
    border-radius: 30px;
    padding: 10px 25px;
    margin: 0 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.role-btn:hover, .role-btn.active {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 用户欢迎区域 */
.user-welcome {
    background-color: var(--card-bg);
    border-left: 4px solid var(--primary-color);
    margin: 20px auto;
    padding: 15px;
    border-radius: 0 8px 8px 0;
    box-shadow: var(--box-shadow);
}

.welcome-message {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.close-welcome {
    font-size: 1.5rem;
    cursor: pointer;
}

.recommended-resources {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.resource-tag {
    background-color: rgba(69, 104, 220, 0.1);
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    display: inline-block;
    cursor: pointer;
    transition: var(--transition);
}

.resource-tag:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 搜索区域 */
.search-section {
    background-color: var(--card-bg);
    padding: 40px 0;
    text-align: center;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 20px auto 10px;
}

.search-box input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 4px 0 0 4px;
    font-size: 1rem;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.search-box button {
    padding: 12px 25px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

.search-box button:hover {
    background-color: var(--primary-dark);
}

.voice-search {
    margin: 10px 0 20px;
}

.voice-btn {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 30px;
    padding: 8px 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.mic-icon {
    margin-right: 5px;
}

.search-results {
    margin-top: 20px;
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.search-result-item {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: var(--box-shadow);
    border-left: 3px solid var(--primary-color);
    transition: var(--transition);
}

.search-result-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.search-result-item h4 a {
    color: var(--primary-color);
    text-decoration: none;
}

.result-type {
    display: inline-block;
    background-color: rgba(69, 104, 220, 0.1);
    color: var(--primary-color);
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    margin-top: 10px;
}

/* 功能模块区域 */
.modules-section {
    background-color: var(--bg-color);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.module-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--box-shadow);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.module-card:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.module-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.module-card p {
    font-size: 0.95rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* 内容区域通用样式 */
.content-section {
    background-color: var(--card-bg);
}

/* 交流社区 */
.community-intro {
    max-width: 800px;
    margin: 0 auto 30px;
    text-align: center;
}

.community-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    margin: 0 5px;
    font-size: 1rem;
    cursor: pointer;
    color: var(--text-color);
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.post-form {
    max-width: 800px;
    margin: 0 auto 30px;
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
}

.post-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    resize: vertical;
    min-height: 100px;
    margin-bottom: 15px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.posts-container {
    max-width: 800px;
    margin: 0 auto;
}

.post-card {
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--box-shadow);
}

.post-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}

.post-author {
    font-weight: 600;
}

.post-date {
    color: var(--text-color);
    opacity: 0.6;
    font-size: 0.9rem;
}

.post-footer {
    display: flex;
    margin-top: 15px;
}

.support-btn, .reply-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    margin-right: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.support-btn:hover, .reply-btn:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* 自我保护 */
.protection-intro {
    max-width: 800px;
    margin: 0 auto 30px;
    text-align: center;
}

.protection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.protection-card {
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--box-shadow);
}

.protection-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.protection-card ul {
    list-style-position: inside;
    margin-bottom: 15px;
}

.protection-card li {
    margin-bottom: 8px;
}

.video-wrapper {
    margin-top: 15px;
    text-align: center;
}

.video-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    cursor: pointer;
    transition: var(--transition);
}

.video-btn:hover {
    background-color: var(--primary-dark);
}

/* 校园暴力识别 */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.content-item {
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.content-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.item-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.content-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.warning-signs {
    margin-top: 15px;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

.warning-signs h4 {
    color: var(--danger-color);
    margin-bottom: 10px;
    font-size: 1rem;
}

.warning-signs ul {
    list-style-type: none;
}

.warning-signs li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.warning-signs li:before {
    content: "⚠️";
    position: absolute;
    left: 0;
    top: 2px;
    font-size: 0.8rem;
}

.violence-assessment {
    max-width: 600px;
    margin: 40px auto 0;
    text-align: center;
}

.assessment-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 30px;
    padding: 12px 30px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
}

.assessment-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* 新闻区域 */
.news-section {
    background-color: var(--bg-color);
}

.news-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.filter-btn {
    background: none;
    border: none;
    padding: 8px 20px;
    margin: 0 5px 10px;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.news-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.news-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--danger-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover img {
    transform: scale(1.05);
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    margin: 15px 0;
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.7;
}

.read-more {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.news-pagination {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.pagination-btn {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
}

.pagination-btn.active, .pagination-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.pagination-btn.next {
    width: auto;
    border-radius: 20px;
    padding: 0 15px;
}

/* 解决方案展示 */
.solutions-showcase {
    background-color: var(--card-bg);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.solution-showcase-card {
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.solution-showcase-card:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    z-index: -1;
    transition: var(--transition);
}

.solution-showcase-card:hover:before {
    opacity: 0.05;
}

.solution-showcase-card .icon {
    font-size: 3rem;
    margin-bottom: 15px;
    transition: var(--transition);
}

.solution-showcase-card:hover .icon {
    transform: scale(1.2);
}

.solution-showcase-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.solution-details {
    height: 0;
    overflow: hidden;
    opacity: 0;
    transition: var(--transition);
    margin-top: 10px;
}

.solution-showcase-card:hover .solution-details {
    height: auto;
    opacity: 1;
}

.solution-details p {
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.learn-more-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 15px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.learn-more-btn:hover {
    background-color: var(--primary-dark);
}

/* 使用者心声 */
.testimonials {
    background-color: var(--bg-color);
    position: relative;
    overflow: hidden;
}

.testimonials:before {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0.1;
    top: -150px;
    left: -150px;
}

.testimonials:after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    opacity: 0.1;
    bottom: -150px;
    right: -150px;
}

.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-slide {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--box-shadow);
    margin: 20px 10px;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 20px;
    position: relative;
}

.testimonial-content p {
    position: relative;
    z-index: 1;
}

.testimonial-content:before {
    content: '"';
    position: absolute;
    top: -20px;
    left: -10px;
    font-size: 5rem;
    color: var(--primary-color);
    opacity: 0.1;
    z-index: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    border: 3px solid var(--primary-color);
}

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

.author-info p {
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.9rem;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.prev-btn, .next-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.prev-btn:hover, .next-btn:hover {
    background-color: var(--primary-dark);
}

.slider-dots {
    display: flex;
    margin: 0 20px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active, .dot:hover {
    background-color: var(--primary-color);
}

/* 数据统计 */
.statistics-section {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.statistics-section h2 {
    color: white;
}

.statistics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.statistic-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px;
    position: relative;
}

.statistic-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.statistic-label {
    font-size: 1.1rem;
}

.statistic-unit {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    opacity: 0.5;
}

/* 页脚 */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column h3 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

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

.social-link {
    color: white;
    text-decoration: none;
    margin-right: 15px;
    transition: var(--transition);
}

.social-link:hover {
    color: var(--primary-color);
}

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

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

.footer-links a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

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

.app-download {
    text-align: center;
    margin-bottom: 30px;
}

.app-buttons {
    display: flex;
    justify-content: center;
    margin-top: 15px;
}

.app-btn {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 4px;
    margin: 0 10px;
    transition: var(--transition);
}

.app-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

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

.footer-bottom-links {
    margin-top: 15px;
}

.footer-bottom-links a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

/* 浮动求助按钮 */
.floating-help {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
}

.help-btn {
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.4);
    transition: var(--transition);
}

.help-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(220, 53, 69, 0.5);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(69, 104, 220, 0.1);
}

.submit-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 12px 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-banner {
        padding: 60px 20px;
    }
    
    .hero-banner h1 {
        font-size: 2rem;
    }
    
    section {
        padding: 40px 0;
    }
    
    .modules-grid,
    .content-grid,
    .resources-grid,
    .news-grid,
    .solutions-grid,
    .protection-grid,
    .recommendations-grid,
    .help-options {
        grid-template-columns: 1fr;
    }
    
    .role-btn {
        margin-bottom: 10px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .theme-switch-wrapper {
        top: 10px;
        right: 10px;
    }
    
    .news-filter {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        margin-bottom: 5px;
    }
    
    .statistics-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .statistic-number {
        font-size: 2.5rem;
    }
    
    .theme-selector,
    .font-size-adjuster {
        display: none;
    }
    
    .video-placeholder {
        height: 250px;
    }
}