/**
 * 发票查询页面样式
 * 与 opencz.vip 子站风格保持一致
 */
:root {
    --primary-color: #0066FF;
    --success-color: #28a745;
    --error-color: #dc3545;
    --text-main: #1d1d1f;
    --text-sec: #6e6e73;
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --border-color: #d2d2d7;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Myriad Set Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 520px;
    background: var(--card-bg);
    border-radius: 18px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
    padding: 40px;
    transition: all 0.3s ease;
}

.header {
    text-align: center;
    margin-bottom: 32px;
}

.header h1 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.header p {
    font-size: 14px;
    color: var(--text-sec);
}

.header-tip {
    font-size: 12px;
    color: #acacb7;
    margin-top: 8px;
}

/* 查询区域 */
.search-section {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.2s;
    background: #fafafa;
}

.input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.input::placeholder {
    color: #acacb7;
}

.btn {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: #0055d4;
}

.btn-primary:disabled {
    background: #b2d1ff;
    cursor: not-allowed;
}

/* 消息提示 */
.message {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
}

.message.error {
    background: #fdf2f2;
    color: var(--error-color);
}

.message.success {
    background: #f0f7ff;
    color: var(--primary-color);
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 40px 0;
}

.spinner {
    width: 36px;
    height: 36px;
    margin: 0 auto 16px;
    border: 3px solid #eee;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading p {
    color: var(--text-sec);
    font-size: 14px;
}

/* 结果区域 */
.result-section {
    margin-top: 8px;
}

.result-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
}

.result-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 单条发票卡片 */
.invoice-card {
    background: #f9f9fb;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
}

.invoice-info {
    margin-bottom: 12px;
}

.invoice-info-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    margin-bottom: 6px;
}

.invoice-info-row:last-child {
    margin-bottom: 0;
}

.invoice-label {
    color: var(--text-sec);
}

.invoice-value {
    font-weight: 500;
    color: var(--text-main);
}

.invoice-actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-color);
}

.btn-action {
    flex: 1;
    padding: 10px 16px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

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

.btn-download:hover {
    background: #0055d4;
}

.btn-copy {
    background: #fff;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-copy:hover {
    background: #f5f5f7;
    border-color: #c2c2c7;
}

.btn-copy.copied {
    background: #e7f6ed;
    border-color: var(--success-color);
    color: var(--success-color);
}

/* 空结果 */
.empty-result {
    text-align: center;
    padding: 40px 20px;
}

.empty-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
    opacity: 0.6;
}

.empty-result p {
    font-size: 16px;
    color: var(--text-main);
    margin-bottom: 8px;
}

.empty-tip {
    font-size: 13px;
    color: var(--text-sec);
}