/**
 * 算立方 MAXCUBE - 联系我们页面样式
 * Contact Us Page Styles
 */

/* ==================== Hero 区 ==================== */
.contact-hero {
    text-align: center;
    padding: 48px 0 36px;
}

.contact-hero-inner {
    max-width: 720px;
    margin: 0 auto;
}

.contact-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--primary-light);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.contact-hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
    flex-shrink: 0;
}

.contact-hero-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
    margin: 0 0 12px;
}

.contact-hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ==================== 两栏主体布局 ==================== */
.contact-body {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 28px;
    padding-bottom: 56px;
    align-items: start;
}

/* ==================== 左侧表单卡片 ==================== */
.contact-form-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: 32px;
}

.contact-form-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 24px;
}

/* 需求类型分类按钮 */
.contact-category-group {
    margin-bottom: 24px;
}

.contact-category-label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.contact-category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.contact-category-chip {
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    user-select: none;
    white-space: nowrap;
}

.contact-category-chip:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--primary-light);
}

.contact-category-chip[aria-pressed="true"] {
    border-color: var(--primary-color);
    background: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
    box-shadow: 0 0 0 1px var(--primary-color);
}

.contact-category-error {
    display: none;
    margin-top: 6px;
    font-size: var(--font-size-xs);
    color: var(--error-color);
}

.contact-category-error.is-visible {
    display: block;
}

/* 表单字段 */
.contact-form-fields {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.contact-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-field-label {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
}

.contact-field-label .optional-mark {
    color: var(--text-tertiary);
    font-weight: 400;
    font-size: var(--font-size-xs);
    margin-left: 4px;
}

.contact-field-input,
.contact-field-textarea,
.contact-field-select {
    width: 100%;
    height: 44px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    outline: none;
}

.contact-field-input::placeholder,
.contact-field-textarea::placeholder {
    color: var(--text-placeholder);
}

.contact-field-input:focus,
.contact-field-textarea:focus,
.contact-field-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.contact-field-input.is-error,
.contact-field-textarea.is-error {
    border-color: var(--error-color);
}

.contact-field-input.is-error:focus,
.contact-field-textarea.is-error:focus {
    box-shadow: 0 0 0 3px rgba(255, 77, 79, 0.1);
}

.contact-field-textarea {
    height: 160px;
    padding: 12px 14px;
    resize: vertical;
    min-height: 100px;
    max-height: 300px;
    line-height: 1.6;
}

.contact-field-error {
    display: none;
    font-size: var(--font-size-xs);
    color: var(--error-color);
    line-height: 1.4;
}

.contact-field-error.is-visible {
    display: block;
}

/* 首选联系方式 */
.contact-field-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 24 24' fill='none' stroke='%238c8c8c' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    cursor: pointer;
}

/* 提交按钮 */
.contact-submit-btn {
    width: 100%;
    height: 48px;
    margin-top: 8px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--primary-color);
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.contact-submit-btn .btn-text {
    color: #fff;
    background: transparent;
    padding: 0;
}

.contact-submit-btn:hover {
    background: var(--primary-hover);
}

.contact-submit-btn:active {
    background: var(--primary-active);
}

.contact-submit-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.contact-submit-btn .btn-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: contactSpin 0.6s linear infinite;
}

.contact-submit-btn.is-loading .btn-spinner {
    display: block;
}

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

/* 上传截图/照片 */
.contact-photo-field {
    gap: 8px;
}

.contact-photo-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.contact-photo-upload {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 68px;
    padding: 14px 16px;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    background: #fbfdff;
    cursor: pointer;
    transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.contact-photo-upload:hover,
.contact-photo-upload:focus-within {
    border-color: var(--primary-color);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.08);
}

.contact-photo-upload-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(24, 144, 255, 0.1);
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-photo-upload-icon svg {
    width: 18px;
    height: 18px;
}

.contact-photo-upload-copy {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.contact-photo-upload-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.contact-photo-upload-hint {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.4;
}

.contact-photo-preview {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.contact-photo-preview:empty {
    display: none;
}

.contact-photo-item {
    position: relative;
    min-width: 0;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    overflow: hidden;
}

.contact-photo-thumb {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: var(--bg-light);
}

.contact-photo-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding: 6px 8px;
    font-size: 11px;
    color: var(--text-tertiary);
}

.contact-photo-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.contact-photo-remove {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.58);
    color: #fff;
    font-size: 16px;
    line-height: 1;
    border: none;
    cursor: pointer;
    transition: background var(--transition-base);
}

.contact-photo-remove:hover {
    background: rgba(0, 0, 0, 0.76);
}

/* ==================== 成功状态 ==================== */
.contact-success-card {
    display: none;
    text-align: center;
    padding: 48px 32px;
}

.contact-success-card.is-visible {
    display: block;
}

.contact-success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(82, 196, 26, 0.12), rgba(82, 196, 26, 0.06));
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-success-icon svg {
    width: 32px;
    height: 32px;
    color: var(--success-color);
}

.contact-success-title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 10px;
}

.contact-success-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 28px;
}

.contact-success-again-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.contact-success-again-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--primary-light);
}

/* 表单错误 banner */
.contact-form-error-banner {
    display: none;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    background: #fff2f0;
    border: 1px solid #ffccc7;
    color: var(--error-color);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.contact-form-error-banner.is-visible {
    display: flex;
}

.contact-form-error-banner svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ==================== 右侧咨询服务面板 ==================== */
.contact-service-panel {
    position: sticky;
    top: calc(var(--navbar-height) + 24px);
}

.contact-service-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

/* 产品视觉区 */
.contact-service-visual {
    position: relative;
    padding: 28px 24px 20px;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 100%);
    border-bottom: 1px solid var(--border-light);
}

.contact-visual-illustration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.contact-visual-box {
    position: relative;
}

.contact-visual-box svg {
    width: 100px;
    height: 80px;
}

.contact-visual-items {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.contact-visual-item {
    width: 32px;
    height: 22px;
    border-radius: 4px;
    opacity: 0.85;
}

.contact-visual-item:nth-child(1) {
    background: var(--primary-color);
    width: 36px;
}

.contact-visual-item:nth-child(2) {
    background: #36cfc9;
    width: 28px;
}

.contact-visual-item:nth-child(3) {
    background: #ffc53d;
    width: 32px;
}

.contact-visual-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px;
    text-align: center;
}

.contact-visual-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-align: center;
    margin: 0;
}

/* 场景标签 */
.contact-service-body {
    padding: 20px 24px;
}

.contact-service-section-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 12px;
}

.contact-scenario-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.contact-scenario-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.contact-scenario-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--primary-color);
    margin-top: 1px;
}

/* 服务承诺 */
.contact-promise-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    padding: 14px 16px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.contact-promise-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.5;
}

.contact-promise-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), #36cfc9);
    flex-shrink: 0;
    margin-top: 5px;
}

/* 联系商务按钮 */
.contact-sales-btn {
    width: 100%;
    height: 46px;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--primary-color);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.contact-sales-btn:hover {
    background: var(--primary-light);
}

.contact-sales-btn svg {
    width: 18px;
    height: 18px;
}

/* 底部线上沟通说明 */
.contact-service-footer {
    padding: 14px 24px;
    border-top: 1px solid var(--divider-color);
}

.contact-service-note {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.6;
    margin: 0;
}

/* ==================== 联系商务弹窗 ==================== */
.contact-sales-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.32);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100200;
    opacity: 0;
    transition: opacity 0.18s ease;
}

.contact-sales-modal-backdrop[hidden] {
    display: none !important;
}

.contact-sales-modal-backdrop.show {
    opacity: 1;
}

.contact-sales-modal {
    width: min(480px, 100%);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
    border: 1px solid rgba(214, 234, 255, 0.8);
    overflow: hidden;
    transform: translateY(10px);
    transition: transform 0.18s ease;
}

.contact-sales-modal-backdrop.show .contact-sales-modal {
    transform: translateY(0);
}

.contact-sales-modal-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--divider-color);
}

.contact-sales-modal-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.12), rgba(54, 207, 201, 0.14));
    color: var(--primary-color);
}

.contact-sales-modal-icon svg {
    width: 22px;
    height: 22px;
}

.contact-sales-modal-title-group {
    flex: 1;
    min-width: 0;
}

.contact-sales-modal-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.contact-sales-modal-desc {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin: 4px 0 0;
}

.contact-sales-modal-close {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    border: none;
    background: #f5f8ff;
    color: var(--text-tertiary);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.contact-sales-modal-close:hover {
    color: var(--text-primary);
    background: #ebf3ff;
}

/* 弹窗内容 */
.contact-sales-modal-body {
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-sales-loading,
.contact-sales-empty {
    padding: 20px;
    border-radius: var(--radius-md);
    background: var(--bg-light);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-align: center;
}

.contact-sales-channel {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-lg);
    background: var(--bg-light);
    border: 1px solid var(--border-light);
}

.contact-sales-channel-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-sales-channel-icon.icon-wechat {
    background: #07c160;
    color: white;
}

.contact-sales-channel-icon.icon-email {
    background: var(--primary-color);
    color: white;
}

.contact-sales-channel-icon.icon-phone {
    background: #36cfc9;
    color: white;
}

.contact-sales-channel-icon svg {
    width: 20px;
    height: 20px;
}

.contact-sales-channel-info {
    flex: 1;
    min-width: 0;
}

.contact-sales-channel-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 2px;
}

.contact-sales-channel-value {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
    word-break: break-all;
}

.contact-sales-copy-btn {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    flex-shrink: 0;
}

.contact-sales-copy-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.contact-sales-copy-btn.is-copied {
    border-color: var(--success-color);
    color: var(--success-color);
    background: rgba(82, 196, 26, 0.06);
}

/* 微信二维码区域 */
.contact-sales-qr-section {
    text-align: center;
    padding: 16px;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    background: #fafbfc;
}

.contact-sales-qr-placeholder {
    width: 140px;
    height: 140px;
    margin: 0 auto 10px;
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-placeholder);
    font-size: var(--font-size-xs);
}

.contact-sales-qr-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.contact-sales-qr-hint {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin: 0;
}

/* 弹窗底部 */
.contact-sales-modal-footer {
    padding: 14px 24px 20px;
    border-top: 1px solid var(--divider-color);
    text-align: center;
}

.contact-sales-form-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    cursor: pointer;
    background: none;
    border: none;
    font-weight: 500;
    transition: color var(--transition-base);
}

.contact-sales-form-link:hover {
    color: var(--primary-hover);
}

.contact-sales-form-link svg {
    width: 14px;
    height: 14px;
}

/* ==================== 底部辅助说明 ==================== */
.contact-bottom-hints {
    padding: 0 0 48px;
}

.contact-hints-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.contact-hint-card {
    padding: 20px;
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    text-align: center;
}

.contact-hint-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 12px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(24, 144, 255, 0.1), rgba(54, 207, 201, 0.1));
    color: var(--primary-color);
}

.contact-hint-icon svg {
    width: 20px;
    height: 20px;
}

.contact-hint-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.contact-hint-desc {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.5;
    margin: 0;
}

/* ==================== 响应式 ==================== */

/* 平板端 */
@media (max-width: 1024px) {
    .contact-body {
        grid-template-columns: 1fr 320px;
        gap: 20px;
    }

    .contact-hero-title {
        font-size: 24px;
    }
}

/* 小平板 / 大手机 */
@media (max-width: 768px) {
    .contact-hero {
        padding: 32px 0 24px;
    }

    .contact-hero-title {
        font-size: 22px;
    }

    .contact-body {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-service-panel {
        position: static;
    }

    .contact-form-card {
        padding: 24px;
    }

    .contact-field-row {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .contact-hints-grid {
        grid-template-columns: 1fr;
    }

    .contact-photo-preview {
        grid-template-columns: 1fr;
    }

    .contact-sales-btn {
        width: 100%;
    }
}

/* 手机端 */
@media (max-width: 480px) {
    .contact-hero {
        padding: 24px 0 16px;
    }

    .contact-hero-title {
        font-size: 20px;
    }

    .contact-hero-subtitle {
        font-size: var(--font-size-base);
    }

    .contact-form-card {
        padding: 20px 16px;
        border-radius: var(--radius-lg);
    }

    .contact-category-chips {
        gap: 6px;
    }

    .contact-category-chip {
        padding: 6px 12px;
        font-size: var(--font-size-xs);
    }

    .contact-sales-modal {
        width: calc(100vw - 32px);
    }

    .contact-service-card {
        border-radius: var(--radius-lg);
    }
}