:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --dark-bg: #121826;
    --card-bg: #1e293b;
    --accent-color: #06d6a0;
    --warning-color: #f9c74f;
    --danger-color: #ef476f;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(67, 97, 238, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(58, 12, 163, 0.1) 0%, transparent 20%);
}

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

header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 30px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.logo-icon {
    color: var(--accent-color);
    font-size: 2.5rem;
    filter: drop-shadow(0 0 10px rgba(6, 214, 160, 0.3));
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.5;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

@media (min-width: 992px) {
    .main-content {
        grid-template-columns: 1fr 2fr;
    }
}

.query-panel {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.input-group {
    position: relative;
}

#domainInput {
    width: 100%;
    padding: 16px 20px;
    background: rgba(30, 41, 59, 0.7);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: var(--transition);
}

#domainInput:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

#queryBtn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 5px;
}

#queryBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
}

#queryBtn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    font-size: 1.2rem;
}

.examples-section {
    margin-top: 30px;
}

.examples-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.examples-header i {
    color: var(--accent-color);
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
}

.example-domain {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 15px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.example-domain:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.2);
}

.example-domain:active {
    transform: translateY(0);
}

.example-domain::after {
    content: '点击查询';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 9px;
    font-size: 0.8rem;
    font-weight: 500;
}

.example-domain:hover::after {
    opacity: 1;
}

.results-panel {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    min-height: 500px;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.protocol-badge {
    background: linear-gradient(135deg, var(--accent-color), #118ab2);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.result-content {
    transition: var(--transition);
}

.loading-container {
    text-align: center;
    padding: 60px 20px;
}

.info-message {
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(67, 97, 238, 0.3);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto 25px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-container {
    text-align: center;
    padding: 60px 20px;
}

.error-icon {
    font-size: 4rem;
    color: var(--danger-color);
    margin-bottom: 20px;
    opacity: 0.8;
}

.error-message {
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.retry-btn {
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(67, 97, 238, 0.3);
}

/* ========== 域名头部样式 - 优化版 ========== */
.domain-header {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(58, 12, 163, 0.1));
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 30px;
    border-left: 5px solid var(--accent-color);
    position: relative;
}

.domain-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    word-break: break-all;
}

/* 域名状态样式 - 新增5种状态 */
.domain-status {
    font-size: 1.2rem;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: 20px;
    display: inline-block;
    margin-top: 10px;
}

.status-unregistered {
    background: rgba(6, 214, 160, 0.2);
    color: var(--accent-color);
    border: 1px solid rgba(6, 214, 160, 0.3);
}

.status-registered {
    background: rgba(67, 97, 238, 0.2);
    color: var(--primary-color);
    border: 1px solid rgba(67, 97, 238, 0.3);
}

.status-expiring {
    background: rgba(249, 199, 79, 0.2);
    color: var(--warning-color);
    border: 1px solid rgba(249, 199, 79, 0.3);
}

.status-expired {
    background: rgba(239, 71, 111, 0.2);
    color: var(--danger-color);
    border: 1px solid rgba(239, 71, 111, 0.3);
}

.status-locked {
    background: rgba(148, 163, 184, 0.2);
    color: var(--text-secondary);
    border: 1px solid rgba(148, 163, 184, 0.3);
}

/* 移除旧的域名元信息样式 */
.domain-meta {
    display: none;
}

.meta-item {
    display: none;
}

/* ========== 信息网格样式 ========== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
}

.info-card {
    background: rgba(30, 41, 59, 0.7);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.info-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.2);
}

/* 备案信息卡片特殊样式 */
.icp-card {
    border-left: 4px solid #4361ee;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.05), rgba(30, 41, 59, 0.7));
}

.icp-card .card-header {
    position: relative;
}

.icp-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: linear-gradient(135deg, #4361ee, #3a0ca3);
    color: white;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.icp-license {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 12px;
    padding: 8px 12px;
    background: rgba(6, 214, 160, 0.1);
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

/* 时间线卡片特殊样式 */
.timeline-card {
    grid-column: 1 / -1; /* 跨所有列 */
}

.timeline-content {
    padding: 10px 0;
}

/* 移除旧的状态徽章样式 */
.domain-status-badge {
    display: none;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: var(--accent-color);
    position: relative;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-content {
    color: var(--text-secondary);
}

/* 状态标签样式 */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(6, 214, 160, 0.2);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-right: 8px;
    margin-bottom: 8px;
    border: 1px solid rgba(6, 214, 160, 0.3);
}

.status-badge.important {
    background: rgba(239, 71, 111, 0.2);
    color: var(--danger-color);
    border: 1px solid rgba(239, 71, 111, 0.3);
}

.status-badge.no-status {
    background: rgba(148, 163, 184, 0.2);
    color: var(--text-secondary);
    border: 1px solid rgba(148, 163, 184, 0.3);
}

/* DNS服务器样式 */
.nameservers-list {
    margin-bottom: 15px;
}

.nameserver-item {
    padding: 8px 12px;
    background: rgba(67, 97, 238, 0.1);
    border-radius: 8px;
    margin-bottom: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}

.ns-number {
    color: var(--accent-color);
    font-weight: bold;
    margin-right: 8px;
    min-width: 20px;
}

.ns-value {
    word-break: break-all;
}

/* DNSSEC样式 */
.dnssec-info {
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-top: 10px;
}

.dnssec-signed {
    background: rgba(6, 214, 160, 0.1);
    color: var(--accent-color);
    border-left: 3px solid var(--accent-color);
}

.dnssec-unsigned {
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-secondary);
    border-left: 3px solid var(--text-secondary);
}

.dnssec-unknown {
    background: rgba(249, 199, 79, 0.1);
    color: var(--warning-color);
    border-left: 3px solid var(--warning-color);
}

/* ========== 时间线样式 ========== */
.time-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.time-info:last-child {
    border-bottom: none;
}

.time-label {
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 100px;
}

.time-value-wrapper {
    text-align: right;
    flex: 1;
}

.time-value {
    font-weight: 600;
    margin-bottom: 4px;
    font-family: 'Courier New', monospace;
}

.time-ago {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.time-ago.expired {
    color: var(--danger-color);
}

.time-ago.expiring-soon {
    color: var(--warning-color);
}

.expired-text {
    color: var(--danger-color);
    font-weight: 600;
}

/* WHOIS服务器样式 */
.whois-server {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--accent-color);
    background: rgba(6, 214, 160, 0.1);
    padding: 4px 8px;
    border-radius: 6px;
    word-break: break-all;
}

/* ========== 移除原始数据部分样式 ========== */
.raw-data-card {
    display: none;
}

.toggle-raw-btn {
    display: none;
}

.raw-data-content {
    display: none;
}

.raw-whois {
    display: none;
}

.raw-data-info {
    display: none;
}

/* ========== 页脚样式 ========== */
footer {
    text-align: center;
    padding: 30px 20px 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
}

.disclaimer {
    margin-top: 15px;
    padding: 15px;
    background: rgba(30, 41, 59, 0.3);
    border-radius: 10px;
    border-left: 3px solid #4361ee;
    font-size: 0.85rem;
    line-height: 1.5;
}

.disclaimer strong {
    color: var(--accent-color);
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .query-panel, .results-panel {
        padding: 20px;
    }
    
    .domain-name {
        font-size: 1.5rem;
    }
    
    .domain-status {
        font-size: 1rem;
        padding: 6px 15px;
    }
    
    .examples-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .time-info {
        flex-direction: column;
        gap: 8px;
    }
    
    .time-label {
        min-width: auto;
        margin-bottom: 4px;
    }
    
    .time-value-wrapper {
        text-align: left;
    }
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }
    
    header {
        padding: 20px 10px;
    }
    
    .logo-icon {
        font-size: 2rem;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
    
    .domain-status {
        font-size: 0.9rem;
        padding: 5px 12px;
    }
}