* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --bg-color: #F5F5F5;
    --card-color: #FFFFFF;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #000000;
    --divider-color: #E5E5E5;
    font-size: clamp(0.875rem, 2vw, 1rem); /* 14-16px */
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
}

.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: clamp(0.75rem, 2vw, 0.9375rem);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.back-btn {
    color: white;
    font-size: clamp(1.5rem, 3vw, 1.75rem);
    background: none;
    border: 0.2rem solid #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: clamp(0.25rem, 0.75vw, 0.3125rem);
    padding: clamp(0.3rem, 0.75vw, 0.3125rem);
    border-radius: 10%;
    transition: background-color 0.2s;
}

.back-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.header-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
    text-align: center;
    flex: 1;
    padding-right: clamp(2.5rem, 6vw, 3rem);
}

.container {
    padding: clamp(1rem, 3vw, 1.25rem);
    max-width: 800px;
    margin: 0 auto;
}

/* 说明区域 */
.explanation-section {
    background: var(--card-color);
    border-radius: 0.75rem;
    padding: clamp(1rem, 3vw, 1.25rem);
    margin-bottom: clamp(1rem, 3vw, 1.25rem);
    box-shadow: 0 0.125rem 0.75rem rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.explanation-title {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.explanation-content {
    font-size: clamp(0.85rem, 2.3vw, 0.9375rem);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 添加屏蔽企业区域 */
.add-section {
    background: var(--card-color);
    border-radius: 0.75rem;
    padding: clamp(1rem, 3vw, 1.25rem);
    margin-bottom: clamp(1rem, 3vw, 1.25rem);
    box-shadow: 0 0.125rem 0.75rem rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.add-title {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.add-form {
    display: flex;
    gap: 1rem;
}

.form-input {
    width: 100%;
    flex: 1;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    transition: all 0.2s;
    background-color: #fafafa;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(7, 193, 96, 0.1);
    background-color: white;
}

.add-btn {
    padding: 0.875rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.add-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.add-btn:active {
    transform: translateY(0);
}

/* 屏蔽企业列表 */
.blocked-list {
    display: flex;
    flex-direction: column;
    gap: clamp(1rem, 3vw, 1.25rem);
    margin-bottom: clamp(1rem, 3vw, 1.25rem);
}

.blocked-item {
    background: var(--card-color);
    border-radius: 0.75rem;
    padding: clamp(1rem, 3vw, 1.25rem);
    box-shadow: 0 0.125rem 0.75rem rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.blocked-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.company-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.company-name {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.block-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: clamp(0.8rem, 2.2vw, 0.875rem);
    color: var(--text-light);
}

.block-time {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.remove-btn {
    padding: 0.5rem 1rem;
    background: rgba(250, 81, 81, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(250, 81, 81, 0.2);
    border-radius: 0.5rem;
    font-size: clamp(0.8rem, 2.2vw, 0.875rem);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.remove-btn:hover {
    background: var(--danger-color);
    color: white;
}

/* 空状态 */
.empty-state {
    background: var(--card-color);
    border-radius: 0.75rem;
    padding: clamp(2rem, 5vw, 3rem);
    text-align: center;
    box-shadow: 0 0.125rem 0.75rem rgba(0, 0, 0, 0.05);
    margin-bottom: clamp(1rem, 3vw, 1.25rem);
    border: 1px solid var(--border-color);
}

.empty-icon {
    font-size: clamp(3rem, 6vw, 4rem);
    color: var(--text-light);
    margin-bottom: 1rem;
}

.empty-title {
    font-size: clamp(1.1rem, 3vw, 1.25rem);
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.empty-description {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* 搜索建议 */
.suggestions {
    background: var(--card-color);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 5;
    max-height: 200px;
    overflow-y: auto;
    display: none;
    margin-top: 0.25rem;
}

.suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

.suggestion-item:hover {
    background-color: #f8f9fa;
}

.suggestion-item:last-child {
    border-bottom: none;
}

.input-wrapper {
    flex: 1;
    position: relative;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .add-form {
        flex-direction: column;
    }
    
    .blocked-item {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .remove-btn {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .container {
        padding: clamp(0.75rem, 2vw, 0.9375rem);
    }
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.blocked-item {
    animation: fadeIn 0.3s ease;
}

/* 提示信息 */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    z-index: 1000;
    animation: fadeInOut 3s ease;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translateX(-50%) translateY(20px); }
    15% { opacity: 1; transform: translateX(-50%) translateY(0); }
    85% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(-20px); }
}