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

:root {
    /* 马卡龙色系 */
    --color-pink: #FFB6C1;
    --color-lavender: #E6E6FA;
    --color-mint: #B0E0E6;
    --color-peach: #FFDAB9;
    --color-yellow: #FFFACD;
    --color-purple: #DDA0DD;
    --color-blue: #87CEEB;
    --color-green: #98FB98;
    
    /* 主色调 */
    --primary-color: #FFB6C1;
    --secondary-color: #E6E6FA;
    --accent-color: #FFDAB9;
    --text-color: #4A4A4A;
    --text-light: #888888;
    --white: #FFFFFF;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Arial', sans-serif;
    background: linear-gradient(135deg, #FFE4E1 0%, #E6E6FA 50%, #B0E0E6 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ===== 导航栏 ===== */
.navbar {
    background: var(--white);
    box-shadow: 0 4px 20px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 32px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
}

/* 登录注册按钮 */
.auth-btn {
    padding: 8px 20px;
    border: 2px solid var(--primary-color);
    background: var(--white);
    color: var(--primary-color);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.auth-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.register-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
}

.register-btn:hover {
    background: linear-gradient(135deg, var(--color-purple), var(--primary-color));
    transform: translateY(-2px);
}

.logout-btn {
    padding: 6px 15px;
    font-size: 12px;
    background: var(--color-mint);
    border-color: var(--color-mint);
    color: var(--text-color);
}

.logout-btn:hover {
    background: var(--text-color);
    color: var(--white);
    border-color: var(--text-color);
}

.user-menu {
    position: relative;
    display: inline-block;
}

.user-menu-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--white);
    box-shadow: 0 2px 8px var(--shadow);
}

.user-menu-trigger:hover {
    background: var(--secondary-color);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.user-avatar-small {
    font-size: 20px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--secondary-color);
    flex-shrink: 0;
}

.user-name {
    font-weight: 600;
    color: var(--text-color);
    font-size: 14px;
    white-space: nowrap;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-arrow {
    font-size: 10px;
    color: var(--text-light);
    transition: transform 0.3s ease;
}

.user-menu:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--shadow-hover);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    overflow: hidden;
}

.user-menu:hover .user-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    width: 100%;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    font-family: inherit;
    text-align: left;
}

.dropdown-item:hover {
    background: var(--secondary-color);
    color: var(--primary-color);
}

.dropdown-item:first-child {
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.dropdown-item:last-child {
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
}

.dropdown-icon {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.logout-item {
    color: #ff6b6b;
}

.logout-item:hover {
    background: #ffe0e0;
    color: #ff4444;
}

/* 响应式设计 - 用户菜单 */
@media (max-width: 768px) {
    .user-menu-trigger {
        padding: 6px 10px;
        gap: 6px;
    }
    
    .user-avatar-small {
        font-size: 18px;
        width: 24px;
        height: 24px;
    }
    
    .user-name {
        font-size: 12px;
        max-width: 80px;
    }
    
    .dropdown-arrow {
        font-size: 8px;
    }
    
    .user-dropdown-menu {
        min-width: 140px;
        right: 0;
    }
    
    .dropdown-item {
        padding: 10px 14px;
        font-size: 13px;
    }
    
    .dropdown-icon {
        font-size: 16px;
        width: 18px;
    }
}

/* 登录注册模态框 */
.auth-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

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

.auth-modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 40px;
    border-radius: 25px;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    animation: slideDown 0.3s ease;
}

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

.auth-close {
    color: var(--text-light);
    float: right;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

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

.auth-modal-content h2 {
    color: var(--text-color);
    margin-bottom: 30px;
    text-align: center;
    font-size: 28px;
}

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

.auth-form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
    font-size: 14px;
}

.auth-form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--color-mint);
    border-radius: 15px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.auth-form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 182, 193, 0.2);
}

.auth-submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    border-radius: 20px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    box-shadow: 0 4px 15px var(--shadow);
}

.auth-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    color: var(--text-light);
    font-size: 14px;
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.auth-switch a:hover {
    color: var(--color-purple);
    text-decoration: underline;
}

/* 积分更新提示 */
.points-updated {
    animation: pointsBounce 0.6s ease;
}

@keyframes pointsBounce {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.1) rotate(-5deg);
    }
    50% {
        transform: scale(1.15);
    }
    75% {
        transform: scale(1.1) rotate(5deg);
    }
}

.points {
    background: linear-gradient(135deg, var(--color-yellow), var(--color-peach));
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    color: var(--text-color);
    box-shadow: 0 2px 10px var(--shadow);
    transition: all 0.3s ease;
    position: relative;
}

.points::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    border-radius: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.points:hover::before {
    opacity: 1;
}

/* ===== 主内容区 ===== */
.main-content {
    padding: 40px 0;
    min-height: calc(100vh - 200px);
}

/* ===== 首页样式 ===== */
.hero-section {
    text-align: center;
    padding: 80px 20px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 48px;
    color: var(--text-color);
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px var(--shadow);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 30px;
}

.cta-button {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
    font-weight: bold;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.hero-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

.floating-shape {
    position: absolute;
    font-size: 40px;
    animation: float 3s ease-in-out infinite;
}

.shape-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    top: 60%;
    right: 15%;
    animation-delay: 1s;
}

.shape-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

.shape-4 {
    top: 30%;
    right: 30%;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* ===== 通用区块样式 ===== */
.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--color-purple));
    margin: 15px auto;
    border-radius: 2px;
}

.intro-section,
.tasks-preview-section,
.quick-access-section {
    padding: 60px 0;
}

.intro-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.intro-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 8px 25px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.intro-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 35px var(--shadow-hover);
    border-color: var(--primary-color);
}

.card-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.intro-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-color);
}

.intro-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== 任务卡片样式 ===== */
.tasks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.task-card {
    background: var(--white);
    padding: 30px;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.task-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 10px 30px var(--shadow-hover);
    border-color: var(--primary-color);
}

.task-icon {
    font-size: 50px;
    margin-bottom: 15px;
}

.task-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-color);
}

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

.task-meta {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    padding: 10px;
    background: var(--color-yellow);
    border-radius: 15px;
}

.task-points {
    font-weight: bold;
    color: var(--text-color);
}

.task-participants {
    color: var(--text-light);
    font-size: 14px;
}

.task-button {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    padding: 10px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    width: 100%;
}

.task-button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px var(--shadow);
}

.view-all {
    text-align: center;
    margin-top: 40px;
}

.view-all-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-blue), var(--color-mint));
    color: var(--white);
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow);
}

.view-all-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

/* ===== 快速入口 ===== */
.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.quick-access-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
    display: block;
}

.quick-access-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 12px 35px var(--shadow-hover);
    border-color: var(--color-purple);
}

.access-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.quick-access-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.quick-access-card p {
    color: var(--text-light);
}

/* ===== 页面头部 ===== */
.page-header {
    text-align: center;
    padding: 40px 0;
    margin-bottom: 40px;
}

.page-title {
    font-size: 42px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 18px;
    color: var(--text-light);
}

/* ===== 任务页面样式 ===== */
.filter-section {
    margin-bottom: 30px;
}

.filter-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--white);
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 10px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.task-item {
    background: var(--white);
    padding: 30px;
    border-radius: 25px;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.task-item:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
    border-color: var(--primary-color);
}

.task-header {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.task-icon-large {
    font-size: 60px;
    flex-shrink: 0;
}

.task-info {
    flex: 1;
}

.task-info h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.task-description {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.task-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.difficulty-tag.easy {
    background: var(--color-green);
    color: var(--white);
}

.difficulty-tag.medium {
    background: var(--color-yellow);
    color: var(--text-color);
}

.difficulty-tag.hard {
    background: var(--color-purple);
    color: var(--white);
}

.category-tag {
    background: var(--color-blue);
    color: var(--white);
}

.task-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 2px dashed var(--color-mint);
}

.task-stats {
    display: flex;
    gap: 20px;
}

.stat-item {
    color: var(--text-light);
    font-size: 14px;
}

.start-task-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    padding: 12px 30px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.start-task-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px var(--shadow);
}

/* ===== 角色扮演页面样式 ===== */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.role-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
    position: relative;
}

.role-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 12px 35px var(--shadow-hover);
    border-color: var(--color-purple);
}

.role-avatar {
    font-size: 80px;
    margin-bottom: 20px;
    animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-10deg); }
    75% { transform: rotate(10deg); }
}

.role-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-color);
}

.role-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.8;
}

.role-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-yellow), var(--color-peach));
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-color);
}

.select-role-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    padding: 12px 30px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    width: 100%;
}

.select-role-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px var(--shadow);
}

.interaction-section {
    margin-top: 40px;
    padding: 40px;
    background: var(--white);
    border-radius: 25px;
    box-shadow: 0 8px 25px var(--shadow);
}

.interaction-container {
    text-align: center;
}

.role-display {
    margin-bottom: 30px;
}

.current-role-avatar {
    font-size: 100px;
    margin-bottom: 20px;
    animation: bounce 2s infinite;
}

.dialogue-box {
    background: linear-gradient(135deg, var(--color-mint), var(--color-blue));
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 30px;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dialogue-box p {
    font-size: 18px;
    color: var(--white);
    line-height: 1.8;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.action-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    padding: 15px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    font-size: 16px;
}

.action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow);
}

/* ===== 成果展示页面样式 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-bottom: 60px;
}

.stat-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.stat-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 12px 35px var(--shadow-hover);
    border-color: var(--primary-color);
}

.stat-icon {
    font-size: 50px;
    margin-bottom: 15px;
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

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

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.achievement-card {
    background: var(--white);
    padding: 30px;
    border-radius: 25px;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.achievement-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px var(--shadow-hover);
    border-color: var(--primary-color);
}

.achievement-image {
    font-size: 60px;
    text-align: center;
    margin-bottom: 20px;
}

.achievement-content h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: var(--text-color);
}

.achievement-date {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 15px;
}

.achievement-description {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.achievement-impact {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    padding-top: 15px;
    border-top: 2px dashed var(--color-mint);
}

.achievement-impact span {
    background: var(--color-yellow);
    padding: 8px 15px;
    border-radius: 15px;
    font-size: 14px;
    font-weight: 500;
}

.thanks-section {
    margin-top: 60px;
    padding: 40px 0;
}

.thanks-messages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.thanks-card {
    background: linear-gradient(135deg, var(--color-peach), var(--color-yellow));
    padding: 30px;
    border-radius: 25px;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
}

.thanks-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-hover);
}

.thanks-text {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
    color: var(--text-color);
    font-style: italic;
}

.thanks-author {
    text-align: right;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== 社区页面样式 ===== */
.post-section {
    margin-bottom: 40px;
}

.post-box {
    background: var(--white);
    padding: 25px;
    border-radius: 25px;
    box-shadow: 0 6px 20px var(--shadow);
}

.post-header {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    font-size: 40px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint);
    border-radius: 50%;
    flex-shrink: 0;
}

.post-input {
    flex: 1;
    padding: 15px;
    border: 2px solid var(--color-mint);
    border-radius: 20px;
    font-size: 16px;
    font-family: inherit;
    outline: none;
    transition: all 0.3s ease;
}

.post-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 182, 193, 0.2);
}

.post-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.post-action-btn {
    background: var(--color-mint);
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    color: var(--text-color);
}

.post-action-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.post-action-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.empty-posts {
    padding: 60px 20px;
    text-align: center;
    color: var(--text-light);
    font-size: 18px;
}

.post-submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    padding: 10px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.post-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow);
}

.posts-sort {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    padding: 15px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    flex-wrap: wrap;
}

.sort-label {
    font-weight: 600;
    color: var(--text-color);
    font-size: 14px;
    white-space: nowrap;
}

.sort-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sort-btn {
    padding: 8px 16px;
    border: 2px solid var(--primary-color);
    background: var(--white);
    color: var(--primary-color);
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.sort-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.sort-btn.active {
    background: var(--primary-color);
    color: var(--white);
    box-shadow: 0 2px 8px var(--shadow);
}

.posts-filter {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-tab {
    background: var(--white);
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 10px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.post-item {
    background: var(--white);
    padding: 25px;
    border-radius: 25px;
    box-shadow: 0 6px 20px var(--shadow);
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.post-item:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
    border-color: var(--primary-color);
}

.post-user {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    align-items: center;
    position: relative;
}

.post-user-link {
    display: flex;
    gap: 15px;
    align-items: center;
    text-decoration: none;
    color: inherit;
    flex: 1;
    transition: all 0.3s ease;
    border-radius: 12px;
    padding: 5px;
    margin: -5px;
}

.post-user-link:hover {
    background: var(--secondary-color);
    transform: translateX(3px);
}

.post-avatar {
    font-size: 40px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint);
    border-radius: 50%;
    flex-shrink: 0;
    transition: all 0.3s ease;
    cursor: pointer;
}

.post-user-link:hover .post-avatar {
    transform: scale(1.1);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.post-user-info {
    flex: 1;
}

.post-user-info h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--text-color);
    transition: color 0.3s ease;
    cursor: pointer;
}

.post-user-link:hover .post-user-info h4 {
    color: var(--primary-color);
}

.post-time {
    color: var(--text-light);
    font-size: 14px;
}

.post-content {
    margin-bottom: 20px;
}

.post-content p {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 15px;
}

/* 帖子图片相关样式 */
.post-image-preview {
    position: relative;
    margin: 15px 0;
    padding: 15px;
    background: var(--color-mint);
    border-radius: 15px;
}

.post-image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    display: block;
    margin: 0 auto;
}

.remove-image-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 68, 68, 0.9);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.remove-image-btn:hover {
    background: #ff4444;
    transform: scale(1.1);
}

.post-image-container {
    margin-top: 15px;
    text-align: center;
}

.post-image-display {
    max-width: 100%;
    max-height: 400px;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow);
}

.post-image-display:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.post-image-display.expanded {
    max-width: 90vw;
    max-height: 90vh;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10000;
    background: rgba(0, 0, 0, 0.9);
    padding: 20px;
    border-radius: 10px;
}

/* 编辑模态框图片相关样式 */
.edit-image-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.edit-image-preview {
    position: relative;
    padding: 15px;
    background: var(--color-mint);
    border-radius: 15px;
    text-align: center;
}

.edit-image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
}

.remove-edit-image-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 68, 68, 0.9);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.remove-edit-image-btn:hover {
    background: #ff4444;
    transform: scale(1.1);
}

.edit-image-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.edit-image-btn {
    padding: 10px 20px;
    background: var(--color-blue);
    color: var(--white);
    border: none;
    border-radius: 15px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.edit-image-btn:hover {
    background: var(--color-purple);
    transform: translateY(-2px);
}

.remove-edit-image-btn-inline {
    padding: 10px 20px;
    background: var(--white);
    color: #ff4444;
    border: 2px solid #ff4444;
    border-radius: 15px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.remove-edit-image-btn-inline:hover {
    background: #ff4444;
    color: var(--white);
    transform: translateY(-2px);
}

.post-image {
    background: var(--color-mint);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    font-size: 24px;
    color: var(--text-light);
}

.post-interactions {
    display: flex;
    gap: 20px;
    padding-top: 15px;
    border-top: 2px dashed var(--color-mint);
}

.interaction-btn {
    background: transparent;
    border: 2px solid var(--color-mint);
    color: var(--text-color);
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.interaction-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.like-btn.liked {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}

/* 帖子操作按钮 */
.post-actions {
    display: flex;
    gap: 10px;
    margin-left: auto;
}

.post-edit-btn,
.post-delete-btn {
    background: transparent;
    border: 2px solid var(--color-mint);
    color: var(--text-color);
    padding: 6px 12px;
    border-radius: 15px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.post-edit-btn:hover {
    background: var(--color-blue);
    border-color: var(--color-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.post-delete-btn:hover {
    background: #ff4444;
    border-color: #ff4444;
    color: var(--white);
    transform: translateY(-2px);
}

/* 编辑模态框 */
.edit-modal {
    display: block;
    position: fixed;
    z-index: 10001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.edit-modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 40px;
    border-radius: 25px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    animation: slideDown 0.3s ease;
    overflow: visible;
    box-sizing: border-box;
}

.edit-close {
    color: var(--text-light);
    float: right;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

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

.edit-modal-content h2 {
    color: var(--text-color);
    margin-bottom: 30px;
    text-align: center;
    font-size: 28px;
}

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

.edit-form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
    font-size: 14px;
}

.edit-textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: 2px solid var(--color-mint);
    border-radius: 15px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    box-sizing: border-box;
    resize: vertical;
}

.edit-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 182, 193, 0.2);
}

.edit-select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--color-mint);
    border-radius: 15px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    box-sizing: border-box;
    background: var(--white);
    cursor: pointer;
}

.edit-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 182, 193, 0.2);
}

.char-count {
    display: block;
    text-align: right;
    margin-top: 5px;
    color: var(--text-light);
    font-size: 12px;
}

.edit-modal-content form {
    display: flex;
    flex-direction: column;
}

.edit-modal-content form::after {
    content: '';
    display: table;
    clear: both;
}

.edit-button-group {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    justify-content: flex-end;
}

.edit-submit-btn,
.edit-cancel-btn {
    flex: 1;
    max-width: 200px;
    padding: 15px;
    border: none;
    border-radius: 20px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.edit-submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    box-shadow: 0 4px 15px var(--shadow);
}

.edit-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

.edit-cancel-btn {
    background: var(--white);
    color: var(--text-color);
    border: 2px solid var(--color-mint);
}

.edit-cancel-btn:hover {
    background: var(--color-mint);
    transform: translateY(-2px);
}

/* ===== 评论功能样式 ===== */
.comments-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px dashed var(--color-mint);
}

.comments-header {
    margin-bottom: 15px;
}

.comments-header h4 {
    color: var(--text-color);
    font-size: 18px;
    margin: 0;
}

.comments-list {
    margin-bottom: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.no-comments {
    text-align: center;
    color: var(--text-light);
    padding: 20px;
    font-style: italic;
}

.comment-item {
    background: var(--color-yellow);
    padding: 15px;
    border-radius: 15px;
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

.comment-item:hover {
    transform: translateX(5px);
    box-shadow: 0 2px 8px var(--shadow);
}

.comment-user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    position: relative;
}

.comment-avatar {
    font-size: 30px;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-mint);
    border-radius: 50%;
    flex-shrink: 0;
}

.comment-user-info {
    flex: 1;
}

.comment-user-info h5 {
    font-size: 14px;
    margin: 0 0 3px 0;
    color: var(--text-color);
    font-weight: bold;
}

.comment-time {
    color: var(--text-light);
    font-size: 12px;
}

.comment-delete-btn {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 16px;
    padding: 5px;
    transition: all 0.3s ease;
    opacity: 0.6;
}

.comment-delete-btn:hover {
    opacity: 1;
    color: #ff4444;
    transform: scale(1.2);
}

.comment-content {
    margin-left: 45px;
}

.comment-content p {
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    font-size: 14px;
}

.comment-input-section {
    margin-top: 15px;
}

.comment-input-wrapper {
    display: flex;
    gap: 10px;
    align-items: center;
}

.comment-input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid var(--color-mint);
    border-radius: 20px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: all 0.3s ease;
}

.comment-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 182, 193, 0.2);
}

.comment-submit-btn {
    padding: 12px 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--color-purple));
    color: var(--white);
    border: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.comment-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

/* 评论列表滚动条样式 */
.comments-list::-webkit-scrollbar {
    width: 6px;
}

.comments-list::-webkit-scrollbar-track {
    background: var(--color-mint);
    border-radius: 10px;
}

.comments-list::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

.comments-list::-webkit-scrollbar-thumb:hover {
    background: var(--color-purple);
}

/* ===== 页脚 ===== */
.footer {
    background: var(--white);
    padding: 30px 0;
    text-align: center;
    color: var(--text-light);
    box-shadow: 0 -4px 20px var(--shadow);
    margin-top: 60px;
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .nav-menu {
        gap: 15px;
    }
    
    .nav-link {
        padding: 6px 12px;
        font-size: 14px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .tasks-grid,
    .quick-access-grid,
    .roles-grid {
        grid-template-columns: 1fr;
    }
    
    .task-header {
        flex-direction: column;
        text-align: center;
    }
    
    .task-footer {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .start-task-btn {
        width: 100%;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
}

/* ===== 动画增强 ===== */
.animate__animated {
    animation-duration: 1s;
    animation-fill-mode: both;
}

/* 滚动动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}