/* 基础样式与重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

:root {
    /* 主色调 */
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    /* 文字色 */
    --text-color: #333;
    --text-light: #666;
    --text-white: #ffffff;
    
    /* 背景色 */
    --bg-color: #f5f7fa;
    --card-color: #ffffff;
    
    /* 边框与阴影 */
    --border-color: #333333;
    --border-radius: 0.5rem;
    --box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 0.5rem 1.5625rem rgba(0, 0, 0, 0.15);
    
    /* 动画 */
    --transition: all 0.3s ease;
    
    /* 字体大小 - 响应式 */
    font-size: clamp(0.75rem, 2vw, 1rem);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 0.9375rem;
}

header {
    background: linear-gradient(135deg, var(--primary-color), #2980b9);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: clamp(0.75rem, 2vw, 1rem) 0;
    min-height: 3.5rem;
}

.logo {
    font-size: clamp(1.6rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 安全警示条 */
.security-alert {
    background-color: #fff8e1;
    border-left: 0.3125rem solid var(--warning-color);
    padding: clamp(0.75rem, 2vw, 0.9375rem) clamp(0.9375rem, 3vw, 1.25rem);
    margin: clamp(1rem, 4vw, 1.25rem) 0;
    border-radius: var(--border-radius);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    display: flex;
    align-items: flex-start;
    box-shadow: 0 0.125rem 0.3125rem rgba(0, 0, 0, 0.05);
}

.alert-icon {
    font-size: clamp(1rem, 3vw, 1.125rem);
    margin-right: 0.625rem;
    flex-shrink: 0;
}

.alert-text {
    flex: 1;
}

/* 分类筛选栏 */
.category-filter {
    background: var(--card-color);
    border-radius: var(--border-radius);
    padding: clamp(1rem, 4vw, 1.25rem);
    margin-bottom: clamp(0.5rem, 5vw, 0.8rem);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0.625rem;
    z-index: 100;
}

.filter-title {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: 600;
    margin-bottom: clamp(0.75rem, 3vw, 0.9375rem);
    color: var(--secondary-color);
    display: flex;
    align-items: center;
}

.filter-title::before {
    content: "📋";
    margin-right: 0.5rem;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-tag {
    padding: clamp(0.5rem, 2vw, 0.625rem) clamp(1rem, 4vw, 1.125rem);
    background-color: #f0f2f5;
    border: none;
    border-radius: 1.5625rem;
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-light);
    white-space: nowrap;
}

.filter-tag:hover {
    background-color: #e4e6eb;
    transform: translateY(-0.125rem);
}

.filter-tag.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-white);
    font-weight: 600;
    box-shadow: 0 0.25rem 0.5rem rgba(74, 111, 165, 0.3);
}

/* 发布按钮 */
.publish-btn-container {
    text-align: center;
}

.publish-btn {
    background: linear-gradient(135deg, #ff7e5f 0%, #feb47b 100%);
    color: var(--text-white);
    border: none;
    padding: clamp(0.3rem, 4vw, 0.5rem) clamp(0.8rem, 8vw, 1.2rem);
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: 600;
    border-radius: 1.875rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 0.25rem 0.75rem rgba(255, 126, 95, 0.3);
}

.publish-btn:hover {
    transform: translateY(-0.1875rem);
    box-shadow: 0 0.375rem 0.9375rem rgba(255, 126, 95, 0.4);
}

/* 信息网格 */
.info-feed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(clamp(18.75rem, 50vw, 21.875rem), 1fr));
    gap: clamp(1rem, 4vw, 1.5625rem);
    margin-top: clamp(0.5rem, 5vw, 0.8rem);
}

/* 信息卡片 */
.info-card {
    background: var(--card-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.info-card:hover {
    transform: translateY(-0.3125rem);
    box-shadow: var(--box-shadow-lg);
}

.card-header {
    padding: clamp(1rem, 4vw, 1.125rem);
    border-bottom: 0.0625rem solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-title {
    font-size: clamp(1.125rem, 4vw, 1.3rem);
    font-weight: 700;
    color: var(--secondary-color);
}

.card-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: #e8f4fd;
    color: var(--primary-color);
    border-radius: 0.9375rem;
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: 600;
}

.card-price {
    font-size: clamp(1.375rem, 5vw, 1.6rem);
    font-weight: 700;
    color: var(--accent-color);
    text-align: right;
}

.card-price .unit {
    font-size: clamp(0.875rem, 2vw, 1rem);
    color: #777;
    font-weight: normal;
}

.card-body {
    padding: clamp(1rem, 4vw, 1.125rem);
    flex-grow: 1;
}

.card-detail {
    display: flex;
    align-items: center;
    font-size: clamp(1.3rem, 3vw, 1.8rem);
}

.detail-icon {
    margin-right: 0.625rem;
    width: 1.25rem;
    text-align: center;
    color: var(--primary-color);
}

.card-description {
    padding: clamp(0.75rem, 3vw, 0.9375rem);
    background-color: #f9f9f9;
    border-radius: calc(var(--border-radius) - 0.25rem);
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    color: var(--text-light);
    line-height: 1.7;
}

/* 电话联系区域 */
.card-contact {
    padding: clamp(0.3rem, 4vw, 0.6rem);
    background-color: var(--light-color);
    border-top: 0.0625rem solid var(--border-color);
}

.contact-phone-btn {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, var(--success-color) 0%, #2E7D32 100%);
    color: var(--text-white);
    text-align: center;
    padding: clamp(1rem, 4vw, 1.125rem);
    border-radius: calc(var(--border-radius) - 0.125rem);
    font-size: clamp(1.125rem, 4vw, 1.3rem);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    margin-bottom: 0.625rem;
    box-shadow: 0 0.25rem 0.625rem rgba(76, 175, 80, 0.2);
}

.contact-phone-btn:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 0.375rem 0.9375rem rgba(76, 175, 80, 0.3);
}

.contact-tip {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    color: #666;
    text-align: center;
    margin-top: 0.5rem;
}

/* 卡片底部 */
.card-footer {
    padding: clamp(0.75rem, 3vw, 0.9375rem) clamp(1rem, 4vw, 1.125rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 0.0625rem solid var(--border-color);
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    color: #888;
}

.report-btn {
    background: none;
    border: 0.0625rem solid var(--accent-color);
    color: var(--accent-color);
    padding: clamp(0.375rem, 2vw, 0.5rem) clamp(0.75rem, 3vw, 0.875rem);
    border-radius: 0.9375rem;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    cursor: pointer;
    transition: var(--transition);
}

.report-btn:hover {
    background-color: var(--accent-color);
    color: var(--text-white);
}

/* 举报弹窗样式 */
.report-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: flex-start;
}

.report-modal.active {
    display: flex;
}

.report-modal-content {
    background-color: var(--card-color);
    width: 90%;
    max-width: 31.25rem;
    border-radius: var(--border-radius);
    box-shadow: 0 0.625rem 1.875rem rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: modalSlideDown 0.3s ease-out;
    margin-top: 1rem;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes modalSlideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.report-modal-header {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ff8e8e 100%);
    color: var(--text-white);
    padding: clamp(1rem, 4vw, 1.25rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.report-modal-body {
    padding: clamp(1.25rem, 5vw, 1.5625rem);
    overflow-y: auto;
    flex-grow: 1;
    max-height: calc(95vh - 1rem);
}
.report-modal-title {
    font-size: clamp(1.5rem, 5vw, 1.8rem);
}

.report-close-btn {
    background: none;
    border: none;
    color: var(--text-white);
    font-size: clamp(3rem, 5vw, 3.8rem);
    cursor: pointer;
    padding: 0;
    width: 1.875rem;
    height: 1.875rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    transition: var(--transition);
    flex-shrink: 0;
}

.report-close-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 举报表单样式 */
.report-info {
    background-color: #f9f9f9;
    padding: clamp(0.3rem, 3vw, 0.5rem) clamp(0.75rem, 3vw, 0.9375rem);
    border-radius: calc(var(--border-radius) - 0.25rem);
}

.report-info-item {
    margin-bottom: 0.5rem;
    font-size: clamp(1.5rem, 3vw, 1.8rem);
}

.report-info-item strong {
    color: var(--text-color);
}

.report-form-group {
    margin-bottom: clamp(1rem, 4vw, 1.25rem);
}

.report-form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
    font-size: clamp(1.5rem, 3vw, 1.8rem);
}

.report-select {
    width: 100%;
    padding: clamp(0.75rem, 3vw, 0.875rem);
    border: 0.125rem solid var(--border-color);
    border-radius: calc(var(--border-radius) - 0.25rem);
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    background-color: var(--card-color);
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
}

.report-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.125rem rgba(74, 111, 165, 0.2);
}

.report-textarea {
    width: 100%;
    padding: clamp(0.75rem, 3vw, 0.875rem);
    border: 0.125rem solid var(--border-color);
    border-radius: calc(var(--border-radius) - 0.25rem);
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    resize: vertical;
    min-height: 7.5rem;
    transition: var(--transition);
}

.report-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.report-form-footer {
    display: flex;
    justify-content: flex-end;
    gap: clamp(0.75rem, 3vw, 0.9375rem);
    margin-top: clamp(1.25rem, 5vw, 1.5625rem);
}

.report-cancel-btn {
    padding: clamp(0.3rem, 3vw, 0.5rem) clamp(0.5rem, 5vw, 0.6rem);
    background-color: #f0f2f5;
    border: none;
    border-radius: calc(var(--border-radius) - 0.25rem);
    font-size: clamp(1.5rem, 2vw, 1.8rem);
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.report-cancel-btn:hover {
    background-color: #e4e6eb;
}

.report-submit-btn {
    padding: clamp(0.3rem, 3vw, 0.5rem) clamp(0.5rem, 5vw, 0.6rem);
    background: linear-gradient(135deg, var(--accent-color) 0%, #ff8e8e 100%);
    border: none;
    border-radius: calc(var(--border-radius) - 0.25rem);
    font-size: clamp(1.5rem, 2vw, 1.8rem);
    font-weight: 600;
    color: var(--text-white);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 0.25rem 0.625rem rgba(255, 107, 107, 0.2);
}

.report-submit-btn:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 0.375rem 0.9375rem rgba(255, 107, 107, 0.3);
}

.report-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 响应式设计 */
@media (max-width: 48rem) {
    .container {
        padding: 0 0.625rem;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: clamp(0.75rem, 3vw, 0.9375rem);
    }
    
    .info-feed {
        grid-template-columns: 1fr;
        gap: clamp(1rem, 4vw, 1.25rem);
    }
    
    .category-filter {
        padding: clamp(0.75rem, 3vw, 0.9375rem);
        position: static;
    }
    
    .filter-tag {
        padding: clamp(0.5rem, 2vw, 0.625rem) clamp(0.5rem, 3vw, 0.8rem);
        font-size: clamp(1.5rem, 3vw, 1.8rem);
    }
    
    .card-title {
        font-size: clamp(1.5rem, 3vw, 1.8rem);
    }
    
    .card-price {
        font-size: clamp(1.5rem, 3vw, 1.8rem);
    }
    
    .contact-phone-btn {
        padding: clamp(0.875rem, 3vw, 1rem);
        font-size: clamp(1.5rem, 3vw, 1.8rem);
    }
    
    .report-modal-content {
        width: 95%;
    }
}

@media (min-width: 48.0625rem) and (max-width: 64rem) {
    .info-feed {
        grid-template-columns: repeat(2, 1fr);
    }
}