/* ============================================
   Custom Ticket System - Frontend Styles
   PCB定制需求系统前端样式
   ============================================ */

/* --- CSS Variables --- */
:root {
    --cts-primary: #2563eb;
    --cts-primary-hover: #1d4ed8;
    --cts-primary-light: #eff6ff;
    --cts-success: #16a34a;
    --cts-success-light: #f0fdf4;
    --cts-warning: #d97706;
    --cts-danger: #dc2626;
    --cts-border: #e5e7eb;
    --cts-border-focus: #93c5fd;
    --cts-bg: #ffffff;
    --cts-bg-page: #f9fafb;
    --cts-text: #1f2937;
    --cts-text-muted: #6b7280;
    --cts-text-placeholder: #9ca3af;
    --cts-radius: 8px;
    --cts-radius-sm: 6px;
    --cts-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --cts-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --cts-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --cts-transition: all 0.2s ease;
}

/* === Form Container === */
.cts-form {
    max-width: 800px;
    margin: 30px auto;
    padding: 36px 40px;
    background: var(--cts-bg);
    border-radius: var(--cts-radius);
    box-shadow: var(--cts-shadow-md);
    border: 1px solid var(--cts-border);
}

/* === User Bar (top info) === */
.cts-form .cts-user-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--cts-border);
    font-size: 14px;
    color: var(--cts-text-muted);
}
.cts-form .cts-user-bar a {
    color: var(--cts-primary);
    text-decoration: none;
    font-weight: 500;
}
.cts-form .cts-user-bar a:hover {
    text-decoration: underline;
}

/* === Back Link === */
.cts-form-back {
    margin-bottom: 16px;
}
.cts-form-back a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--cts-text-muted);
    font-size: 14px;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--cts-radius-sm);
    transition: var(--cts-transition);
}
.cts-form-back a:hover {
    background: var(--cts-bg-page);
    color: var(--cts-primary);
}

/* === Form Title === */
.cts-form-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--cts-text);
    margin: 0 0 28px;
    letter-spacing: -0.02em;
}

/* === Form Group (field wrapper) === */
.cts-form .form-group {
    margin-bottom: 22px;
    width: 100%;
}

.cts-form .form-group > label {
    display: block;
    margin-bottom: 7px;
    font-weight: 600;
    font-size: 14px;
    color: var(--cts-text);
    letter-spacing: 0.01em;
}

.cts-form .cts-required {
    color: var(--cts-danger);
    margin-left: 2px;
    font-size: 14px;
}

/* === Input Fields === */
.cts-form input[type="text"],
.cts-form input[type="email"],
.cts-form input[type="password"],
.cts-form textarea,
.cts-form select {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid var(--cts-border);
    border-radius: var(--cts-radius-sm);
    font-size: 15px;
    line-height: 1.5;
    color: var(--cts-text);
    background: var(--cts-bg);
    transition: var(--cts-transition);
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.cts-form input::placeholder,
.cts-form textarea::placeholder {
    color: var(--cts-text-placeholder);
}

.cts-form input:focus,
.cts-form textarea:focus,
.cts-form select:focus {
    outline: none;
    border-color: var(--cts-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

/* Select dropdown arrow styling */
.cts-form select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

/* Textarea specific */
.cts-form textarea {
    resize: vertical;
    min-height: 100px;
}

/* === Half-width Row Layout === */
.cts-form .form-row {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 18px !important;
    width: 100% !important;
    margin-bottom: 22px;
}

.cts-form .form-row .form-group {
    margin-bottom: 0;
}

/* === Rich Text Editor (wp_editor) === */
.cts-form .wp-editor-wrap {
    margin-top: 4px;
}
.cts-form .wp-editor-container {
    border: 1.5px solid var(--cts-border) !important;
    border-radius: var(--cts-radius-sm) !important;
    overflow: hidden;
    transition: var(--cts-transition);
}
.cts-form .wp-editor-wrap.wp-editor-container:focus-within .wp-editor-container,
.cts-form .wp-editor-wrap:focus-within .wp-editor-container {
    border-color: var(--cts-primary) !important;
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12) !important;
}
.cts-form .wp-editor-tools {
    background: #f8fafc !important;
    border-bottom: 1px solid var(--cts-border) !important;
    padding: 6px 10px !important;
}
.cts-form .quicktags-toolbar {
    background: #f8fafc !important;
    border-bottom: 1px solid var(--cts-border) !important;
    padding: 8px 10px !important;
}
.cts-form .quicktags-toolbar button {
    font-size: 13px !important;
    padding: 3px 8px !important;
    margin-right: 3px !important;
    border: 1px solid var(--cts-border) !important;
    border-radius: 4px !important;
    background: #fff !important;
    color: var(--cts-text-muted) !important;
    cursor: pointer;
}
.cts-form .quicktags-toolbar button:hover {
    border-color: var(--cts-primary) !important;
    color: var(--cts-primary) !important;
}
.cts-form .wp-editor-area {
    padding: 12px 14px !important;
    font-size: 15px !important;
    line-height: 1.6 !important;
    border: none !important;
    min-height: 140px !important;
    resize: vertical;
}
.cts-form .mce-edit-area iframe {
    min-height: 160px !important;
}

/* === File Upload === */
.cts-file-upload {
    position: relative;
    border: 2px dashed var(--cts-border);
    border-radius: var(--cts-radius);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--cts-transition);
    background: var(--cts-bg-page);
}
.cts-file-upload:hover {
    border-color: var(--cts-primary);
    background: var(--cts-primary-light);
}
.cts-file-upload input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}
.cts-file-info {
    margin-top: 10px;
    font-size: 13px;
    color: var(--cts-text-muted);
}
.cts-file-list {
    margin-top: 12px;
}
.cts-file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--cts-bg-page);
    border-radius: var(--cts-radius-sm);
    font-size: 13px;
    color: var(--cts-text);
    margin-bottom: 6px;
}
.cts-file-icon {
    font-size: 16px;
}
.cts-file-size {
    color: var(--cts-text-muted);
    font-size: 12px;
    margin-left: auto;
}

/* === Submit Button === */
.cts-submit-row {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--cts-border);
    text-align: center;
}
.cts-submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 48px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--cts-primary), var(--cts-primary-hover));
    border: none;
    border-radius: var(--cts-radius);
    cursor: pointer;
    transition: var(--cts-transition);
    box-shadow: 0 2px 8px rgba(37,99,235,0.25);
    letter-spacing: 0.02em;
}
.cts-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37,99,235,0.35);
    background: linear-gradient(135deg, var(--cts-primary-hover), #1e40af);
}
.cts-submit-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(37,99,235,0.2);
}

/* === Conditional Field Animation === */
.cts-conditional-field {
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.cts-conditional-field[style*="display:none"],
.cts-conditional-field[style*="display: none"] {
    opacity: 0;
    transform: translateY(-6px);
    overflow: hidden;
}

/* === Success/Error Messages inside form === */
.cts-form .notice {
    padding: 14px 18px;
    border-radius: var(--cts-radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
}
.cts-form .notice-success {
    background: var(--cts-success-light);
    color: var(--cts-success);
    border: 1px solid #bbf7d0;
}
.cts-form .notice-error {
    background: #fef2f2;
    color: var(--cts-danger);
    border: 1px solid #fecaca;
}

/* === Responsive Design === */

/* Tablet */
@media (max-width: 782px) {
    .cts-form {
        margin: 20px 16px;
        padding: 24px 20px;
    }
    .cts-form-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    .cts-form .form-row {
        grid-template-columns: 1fr !important;
        gap: 0 !important;
        margin-bottom: 22px;
    }
    .cts-submit-btn {
        width: 100%;
        padding: 14px 24px;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .cts-form {
        margin: 12px 10px;
        padding: 20px 16px;
        border-radius: var(--cts-radius-sm);
    }
    .cts-form-title {
        font-size: 18px;
        margin-bottom: 16px;
    }
    .cts-form .form-group > label {
        font-size: 13px;
    }
    .cts-form input[type="text"],
    .cts-form input[type="email"],
    .cts-form textarea,
    .cts-form select {
        padding: 10px 12px;
        font-size: 14px;
    }
    .cts-form .cts-user-bar {
        flex-direction: column;
        gap: 6px;
        text-align: center;
    }
    .cts-file-upload {
        padding: 20px 14px;
    }
}

/* ============================================
   Ticket List Page - 需求列表页
   ============================================ */

.cts-ticket-list {
    max-width: 900px;
    margin: 30px auto;
    padding: 0 20px;
}

/* User Bar (shared with form) */
.cts-user-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--cts-border);
    font-size: 14px;
    color: var(--cts-text-muted);
}
.cts-user-bar a { color: var(--cts-primary); text-decoration: none; font-weight: 500; }
.cts-user-bar a:hover { text-decoration: underline; }

/* List Header */
.cts-list-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--cts-text);
    margin: 0 0 20px;
    letter-spacing: -0.02em;
}

/* New Ticket Button Area */
.cts-list-actions {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 20px;
}
.cts-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--cts-radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: var(--cts-transition);
    border: 1.5px solid transparent;
}
.cts-btn-primary {
    background: linear-gradient(135deg, var(--cts-primary), var(--cts-primary-hover));
    color: #fff;
    box-shadow: 0 2px 6px rgba(37,99,235,0.2);
}
.cts-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37,99,235,0.35);
}

/* Ticket Card */
.cts-ticket-card {
    background: var(--cts-bg);
    border: 1px solid var(--cts-border);
    border-radius: var(--cts-radius);
    padding: 0;
    margin-bottom: 20px;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--cts-shadow-sm);
}
/* 左侧状态色条 - 根据状态类型着色 */
.cts-ticket-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: var(--cts-border);
    transition: width 0.2s ease, background 0.2s ease;
}
/* 不同状态的色条 */
.cts-ticket-card:has(.cts-badge.open)::before { background: #dc2626; }
.cts-ticket-card:has(.cts-badge.processing)::before { background: #d97706; }
.cts-ticket-card:has(.cts-badge.closed)::before { background: #16a34a; }

.cts-ticket-card:hover {
    border-color: var(--cts-border-focus);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1), 0 2px 6px rgba(0,0,0,0.06);
    transform: translateY(-3px);
}
.cts-ticket-card:hover::before {
    width: 7px;
}

/* 卡片头部区域 */
.cts-ticket-card h3 {
    margin: 0;
    padding: 18px 22px 14px;
    font-size: 17px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #f3f4f6;
}
/* 需求编号 - 独立样式 */
.cts-ticket-card h3 .ticket-id {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 26px;
    padding: 0 10px;
    background: var(--cts-bg-page);
    color: var(--cts-text-muted);
    font-size: 12px;
    font-weight: 700;
    border-radius: 5px;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.cts-ticket-card:hover h3 .ticket-id {
    background: var(--cts-primary-light);
    color: var(--cts-primary);
}

.cts-ticket-card h3 a {
    text-decoration: none;
    color: var(--cts-text);
    transition: color 0.15s ease;
    flex: 1;
    /* 超长标题截断 */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cts-ticket-card h3 a:hover {
    color: var(--cts-primary);
}
/* 点击箭头指示 */
.cts-ticket-card h3 a::after {
    content: '\2192';
    margin-left: 8px;
    font-size: 14px;
    color: transparent;
    transition: color 0.15s ease, transform 0.15s ease;
    vertical-align: middle;
}
.cts-ticket-card:hover h3 a::after {
    color: var(--cts-primary);
    transform: translateX(3px);
}

/* 卡片底部元信息区 */
.cts-card-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    font-size: 13px;
    color: var(--cts-text-muted);
    padding: 12px 22px 16px;
    background: #fafbfc;
}
.cts-card-meta span:not(.cts-badge) {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
/* 元信息图标前缀 */
.cts-card-meta .meta-type::before { content: ''; }
.cts-card-meta .meta-time::before { content: ''; }

/* Status Badge - 更醒目 */
.cts-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    position: relative;
}
.cts-badge.open {
    background-color: #fef2f2 !important;
    background-image: linear-gradient(135deg, #fee2e2 0%, #fecaca 50%, #fca5a5 100%) !important;
    color: #b91c1c !important;
    border: 1px solid #f87171 !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 1px 3px rgba(220,38,38,0.15) !important;
}
.cts-badge.processing {
    background-color: #fffbeb !important;
    background-image: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #fcd34d 100%) !important;
    color: #92400e !important;
    border: 1px solid #fbbf24 !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 1px 3px rgba(217,119,6,0.15) !important;
}
.cts-badge.closed {
    background-color: #f0fdf4 !important;
    background-image: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 50%, #86efac 100%) !important;
    color: #15803d !important;
    border: 1px solid #4ade80 !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 1px 3px rgba(22,163,74,0.15) !important;
}

/* Empty State */
.cts-empty-state {
    text-align: center;
    padding: 60px 24px;
    background: var(--cts-bg-page);
    border: 2px dashed var(--cts-border);
    border-radius: var(--cts-radius);
    margin-top: 20px;
}
.cts-empty-state h3 {
    color: var(--cts-text);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}
.cts-empty-state p {
    color: var(--cts-text-muted);
    font-size: 14px;
    margin-bottom: 16px;
}
.cts-empty-state a {
    color: var(--cts-primary);
    font-weight: 600;
    text-decoration: none;
}
.cts-empty-state a:hover { text-decoration: underline; }


/* ============================================
   Ticket Detail Page - 需求详情页
   ============================================ */

.cts-detail {
    max-width: 800px;
    margin: 30px auto;
    padding: 0 20px;
}

/* Back Link */
.cts-detail-back {
    margin-bottom: 18px;
}
.cts-detail-back a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--cts-text-muted);
    font-size: 14px;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--cts-radius-sm);
    transition: var(--cts-transition);
}
.cts-detail-back a:hover {
    background: var(--cts-bg-page);
    color: var(--cts-primary);
}

/* Detail Card */
.cts-detail-card {
    background: var(--cts-bg);
    border: 1.5px solid var(--cts-border);
    border-radius: var(--cts-radius);
    padding: 28px 32px;
    margin-bottom: 28px;
    box-shadow: var(--cts-shadow-sm);
}
.cts-detail-card h2 {
    margin: 0 0 20px;
    color: var(--cts-text);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--cts-border);
}

/* Info Table */
.cts-info-table {
    width: 100%;
    border-collapse: collapse;
}
.cts-info-table th {
    text-align: left;
    width: 90px;
    padding: 11px 0;
    color: var(--cts-text-muted);
    font-weight: 600;
    font-size: 13px;
    vertical-align: top;
}
.cts-info-table td {
    padding: 11px 0;
    color: var(--cts-text);
    font-size: 14px;
    line-height: 1.6;
}
.cts-info-table pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
    font-family: inherit;
    font-size: 14px;
    color: var(--cts-text);
    line-height: 1.7;
    background: var(--cts-bg-page);
    padding: 14px 16px;
    border-radius: var(--cts-radius-sm);
    border: 1px solid var(--cts-border);
}
.cts-attachment-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--cts-primary);
    text-decoration: none;
    font-size: 13px;
    padding: 3px 8px;
    border-radius: 4px;
    transition: var(--cts-transition);
}
.cts-attachment-link:hover {
    background: var(--cts-primary-light);
    text-decoration: none;
}

/* Section Title */
.cts-section-title {
    color: var(--cts-text);
    font-size: 18px;
    font-weight: 700;
    margin: 28px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--cts-border);
    letter-spacing: -0.01em;
}

/* Reply Items */
.cts-reply-item {
    padding: 18px 20px;
    border: 1.5px solid var(--cts-border);
    border-radius: var(--cts-radius);
    margin-bottom: 12px;
    transition: var(--cts-transition);
}
.cts-reply-item.admin-reply {
    background: linear-gradient(135deg, #eff6ff, #f8fafc);
    border-left: 4px solid var(--cts-primary);
}
.cts-reply-item.customer-reply {
    background: linear-gradient(135deg, #f0fdf4, #f8fafc);
    border-left: 4px solid var(--cts-success);
}
.cts-reply-header {
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cts-reply-author {
    font-weight: 600;
    font-size: 14px;
    color: var(--cts-text);
}
.cts-reply-time {
    color: var(--cts-text-muted);
    font-size: 12px;
}
.cts-reply-body {
    color: var(--cts-text);
    font-size: 14px;
    line-height: 1.7;
}
.cts-reply-attachments {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* Reply Form */
.cts-detail-form {
    background: var(--cts-bg-page);
    border: 1.5px solid var(--cts-border);
    border-radius: var(--cts-radius);
    padding: 24px 28px;
    margin-top: 24px;
}
.cts-detail-form h4 {
    color: var(--cts-text);
    margin: 0 0 14px;
    font-size: 16px;
    font-weight: 600;
}
.cts-detail-form .wp-editor-wrap {
    margin-bottom: 14px;
}
.cts-detail-form .wp-editor-container {
    border: 1.5px solid var(--cts-border) !important;
    border-radius: var(--cts-radius-sm) !important;
}

/* Reply File Upload */
.cts-reply-file {
    margin: 14px 0;
    padding: 14px 16px;
    background: var(--cts-bg);
    border: 1.5px dashed var(--cts-border);
    border-radius: var(--cts-radius-sm);
}
.cts-reply-file label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--cts-text);
    font-size: 13px;
}
.cts-reply-file input[type="file"] {
    font-size: 13px;
}
.cts-reply-file .cts-file-info {
    display: block;
    margin-top: 4px;
    font-size: 12px;
    color: var(--cts-text-muted);
}

/* Reply Submit */
.cts-reply-submit {
    text-align: right;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--cts-border);
}
.cts-btn-submit {
    padding: 11px 32px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--cts-radius-sm);
    cursor: pointer;
    background: linear-gradient(135deg, var(--cts-primary), var(--cts-primary-hover));
    color: #fff;
    box-shadow: 0 2px 6px rgba(37,99,235,0.25);
    transition: var(--cts-transition);
}
.cts-btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37,99,235,0.35);
}

/* Success Message */
.cts-msg-success {
    background: var(--cts-success-light);
    color: var(--cts-success);
    border: 1px solid #bbf7d0;
    padding: 12px 18px;
    border-radius: var(--cts-radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 500;
}


/* ============================================
   Auth Page - 登录/注册页面（左右分栏）
   ============================================ */

.cts-auth-page {
    display: flex;
    max-width: 900px;
    min-height: 520px;
    margin: 40px auto;
    border-radius: var(--cts-radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.06);
    background: #fff;
}

/* ===== 左侧品牌区 ===== */
.auth-brand {
    flex: 0 0 340px;
    background: linear-gradient(160deg, #1a365d 0%, #2271b1 50%, #3b82f6 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
}
.auth-brand::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
}
.auth-brand::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -30px;
    width: 140px;
    height: 140px;
    background: rgba(255,255,255,0.04);
    border-radius: 50%;
}
.brand-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}
.brand-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: rgba(255,255,255,0.12);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.15);
}
.brand-icon svg {
    color: #fff;
}
.brand-inner h2 {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 6px;
}
.brand-inner > p {
    font-size: 15px;
    opacity: 0.8;
    margin-bottom: 28px;
}
.brand-features {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}
.brand-features li {
    padding: 7px 0;
    font-size: 14px;
    opacity: 0.88;
    display: flex;
    align-items: center;
    gap: 10px;
}
.brand-features .check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: rgba(34,197,94,0.25);
    color: #86efac;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

/* ===== 右侧表单区 ===== */
.auth-form-area {
    flex: 1;
    padding: 36px 40px;
    display: flex;
    flex-direction: column;
}

/* Tab 切换 */
.auth-tabs {
    display: flex;
    gap: 4px;
    background: var(--cts-bg-page);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 24px;
}
.auth-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    background: transparent;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--cts-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}
.auth-tab.active {
    background: #fff;
    color: var(--cts-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.auth-tab:hover:not(.active) {
    color: var(--cts-text);
}

/* 消息提示 */
.auth-msg {
    padding: 11px 16px;
    border-radius: var(--cts-radius-sm);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
    animation: authMsgIn 0.3s ease;
}
@keyframes authMsgIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}
.auth-error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}
.auth-success {
    background: #f0fdf4;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

/* 表单通用 */
.auth-form { }
.auth-form.hidden { display: none; }

.auth-field {
    margin-bottom: 18px;
}
.auth-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--cts-text);
    margin-bottom: 6px;
}
.auth-field label em {
    color: var(--cts-danger);
    font-style: normal;
}

/* 输入框容器（带图标） */
.input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.input-icon {
    position: absolute;
    left: 13px;
    font-size: 15px;
    pointer-events: none;
    z-index: 1;
    opacity: 0.5;
}
.input-wrap input[type="text"],
.input-wrap input[type="email"],
.input-wrap input[type="password"] {
    width: 100%;
    padding: 11px 14px 11px 40px;
    border: 1.5px solid var(--cts-border);
    border-radius: var(--cts-radius-sm);
    font-size: 14px;
    box-sizing: border-box;
    transition: all 0.2s ease;
    background: #fff;
}
.input-wrap input:focus {
    outline: none;
    border-color: var(--cts-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.input-wrap input:focus + .input-icon,
.input-wrap input:focus ~ .input-icon {
    opacity: 0.85;
}

/* 密码显示切换按钮 */
.toggle-pwd {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    line-height: 1;
    opacity: 0.45;
    transition: opacity 0.15s ease;
}
.toggle-pwd:hover { opacity: 0.9; }

/* 验证码行布局 */
.auth-verify-row {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}
.verify-input-wrap {
    flex: 1;
    min-width: 0;
}
.verify-input-wrap .input-wrap {
    width: 100%;
}
.send-code-btn {
    flex-shrink: 0;
    padding: 11px 18px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    border: none;
    border-radius: var(--cts-radius-sm);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    height: 42.5px; /* 与输入框高度一致 */
    line-height: 1;
}
.send-code-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(37,99,235,0.25);
}
.send-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 记住我等选项 */
.auth-options {
    margin-bottom: 18px;
}
.checkbox-label {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--cts-text-muted);
    cursor: pointer;
    font-weight: 400 !important;
}
.checkbox-label input[type="checkbox"] {
    accent-color: var(--cts-primary);
    width: 15px;
    height: 15px;
}

/* 提交按钮 */
.auth-submit-btn {
    width: 100%;
    padding: 13px 24px;
    font-size: 15px;
    font-weight: 700;
    border: none;
    border-radius: var(--cts-radius-sm);
    cursor: pointer;
    background: linear-gradient(135deg, var(--cts-primary), var(--cts-primary-hover));
    color: #fff;
    letter-spacing: 0.05em;
    transition: all 0.25s ease;
    box-shadow: 0 3px 12px rgba(37,99,235,0.25);
    position: relative;
    overflow: hidden;
}
.auth-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(37,99,235,0.35);
}
.auth-submit-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(37,99,235,0.2);
}

/* 注册提示文字 */
.auth-hint {
    font-size: 12px;
    color: var(--cts-text-muted);
    margin: 14px 0;
    line-height: 1.5;
}

/* 底部链接 */
.auth-footer {
    margin-top: auto;
    padding-top: 18px;
    text-align: center;
    font-size: 14px;
    color: var(--cts-text-muted);
    border-top: 1px solid var(--cts-border);
}
.auth-link {
    color: var(--cts-primary);
    font-weight: 600;
    text-decoration: none;
    margin-left: 2px;
}
.auth-link:hover {
    text-decoration: underline;
}


/* ============================================
   Auth Page Responsive
   ============================================ */

@media (max-width: 782px) {
    .cts-auth-page {
        flex-direction: column;
        margin: 16px 12px;
        min-height: auto;
        border-radius: var(--cts-radius);
    }
    .auth-brand {
        flex: none;
        padding: 32px 24px;
        min-height: 180px;
    }
    .brand-features { display: none; }
    .brand-inner h2 { font-size: 22px; }
    .brand-inner > p { font-size: 13px; margin-bottom: 0; }
    .brand-icon { width: 56px; height: 56px; border-radius: 14px; }

    .auth-form-area { padding: 24px 20px; }
    .auth-tabs { margin-bottom: 18px; }
    .auth-field { margin-bottom: 14px; }
    .auth-verify-row { flex-direction: column; align-items: stretch; }
    .send-code-btn { width: 100%; height: auto; padding: 12px; }
}

@media (max-width: 480px) {
    .cts-auth-page { margin: 8px; border-radius: var(--cts-radius-sm); }
    .auth-brand { padding: 24px 20px; min-height: 150px; }
    .auth-form-area { padding: 20px 16px; }
    .auth-submit-btn { padding: 12px 20px; font-size: 14px; }
}


/* ============================================
   Responsive - 列表/详情页响应式
   ============================================ */

@media (max-width: 782px) {
    .cts-ticket-list,
    .cts-detail {
        margin: 20px 12px;
        padding: 0 8px;
    }
    .cts-list-title { font-size: 20px; }
    .cts-ticket-card { padding: 16px 18px; }
    .cts-ticket-card h3 { font-size: 15px; }
    .cts-card-meta { flex-direction: column; gap: 6px; align-items: flex-start; }
    .cts-detail-card { padding: 20px 20px; }
    .cts-detail-card h2 { font-size: 19px; }
    .cts-info-table th { width: 70px; }
    .cts-section-title { font-size: 16px; }
    .cts-detail-form { padding: 18px 18px; }
    .cts-btn-submit { width: 100%; }
}

@media (max-width: 480px) {
    .cts-ticket-list,
    .cts-detail {
        margin: 12px 8px;
        padding: 0 4px;
    }
    .cts-list-title { font-size: 18px; }
    .cts-list-actions { justify-content: stretch; }
    .cts-list-actions .cts-btn { justify-content: center; }
    .cts-ticket-card { padding: 14px 16px; border-radius: var(--cts-radius-sm); }
    .cts-detail-card { padding: 16px 16px; border-radius: var(--cts-radius-sm); }
    .cts-reply-item { padding: 14px 14px; }
    .cts-reply-header { flex-direction: column; gap: 4px; align-items: flex-start; }
}