/* ============================================================
   响应式 / 自适应（@media）
   2026 AI 生态智能报价平台
   ============================================================ */

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

  .qa-panel {
    margin-left: 0;
    padding: 12px 14px;
  }

  .qa-panel-foot .qa-next-btn {
    width: 100%;
  }

  .qa-panel-foot {
    justify-content: stretch;
  }

  .position-grid {
    grid-template-columns: 1fr;
  }

  .plans-grid {
    grid-template-columns: 1fr;
  }

  .addon-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .consultant-card {
    grid-template-columns: 1fr;
  }

  .addon-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-topbar-inner {
    padding: 8px 12px;
    gap: 8px;
    align-items: stretch;
    flex-direction: column;
  }

  .ai-topbar-right {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
    gap: 8px;
    display: none;
  }

  .ai-stepnav {
    justify-content: center;
    gap: 2px;
    overflow-x: auto;
    display: none;
  }

  .ai-step {
    font-size: 10px;
    padding: 2px 6px;
  }

  .ai-main {
    padding: 16px 12px 60px;
  }

  .welcome-card {
    padding: 36px 0 28px;
  }

  .welcome-title {
    font-size: 28px;
  }

  .welcome-subtitle {
    font-size: 13px;
  }

  .welcome-bot {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .welcome-bot-bubble::before {
    display: none;
  }

  .welcome-flow {
    gap: 4px;
  }

  .flow-step {
    min-width: 64px;
    padding: 6px 10px;
  }

  .flow-arrow {
    display: none;
  }

  .page-title {
    font-size: 24px;
  }

  .chat-frame {
    padding: 16px;
  }

  .chat-actions {
    flex-direction: column-reverse;
    gap: 10px;
  }

  .chat-actions .ghost-btn,
  .chat-actions .cta-btn {
    width: 100%;
  }

  .loading-wrap {
    padding: 32px 18px;
  }

  .summary-head {
    padding: 22px 20px;
  }

  .summary-section {
    padding: 18px 20px;
  }

  .summary-price-num,
  .total-num {
    font-size: 32px;
  }

  .plan-card {
    padding: 22px 18px;
  }

  .plan-recommended {
    padding-top: 50px;
  }

  .plan-price-num {
    font-size: 40px;
  }

  .consultant-left,
  .consultant-right,
  .contact-card {
    padding: 22px 0;
  }

  .page-actions {
    flex-direction: column;
  }

  .page-actions .ghost-btn,
  .page-actions .cta-btn {
    width: 100%;
  }


  :root {
    --shadow-sm: 0 1px 4px rgba(7, 7, 7, 0.04);
    --shadow-md: 0 4px 12px rgba(7, 7, 7, 0.08);
    --shadow-lg: 0 10px 30px rgba(7, 7, 7, 0.12);
    --radius-sm: 6px;
    --radius-md: 9px;
    --radius-lg: 12px;
    --radius-xl: 16px;
  }

  html,
  body {
    font-size: 14px;
  }

  /* ============== 顶部导航 ============== */
  .ai-topbar {
    backdrop-filter: saturate(180%) blur(9px);
    -webkit-backdrop-filter: saturate(180%) blur(9px);
  }

  .ai-topbar-inner {
    /* padding: 35px 41px 35px 0; */
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }

  .ai-topbar-inner {
    padding: 10px 41px 10px 0;
  }

  .ai-stepnav {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
    display: none;
  }

  .ai-logo {
    width: 97px;
  }

  .ai-logo img {
    width: 100%;
  }

  .ai-step {
    font-size: 14px;
    padding: 4px 10px;
  }

  .ai-step.active {
    box-shadow: 0 2px 5px rgba(7, 7, 7, 0.15);
  }

  .ai-stepnav .jt {
    font-size: 14px;
    margin: 0 6px;
  }

  .ai-topbar-right {
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
    flex: 1;
  }

  /* ============== 主体 ============== */
  .ai-main {
    max-width: 850px;
    padding: 0 12px 40px;
  }

  .ai-main:has(.page-chat.active) {
    max-width: 980px;
  }

  @keyframes pageFadeIn {
    from {
      opacity: 0;
      transform: translateY(8px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* ============== 页头 ============== */
  .page-header {
    margin-bottom: 16px;
  }

  .page-title {
    font-size: 20px;
    margin-bottom: 5px;
  }

  .page-subtitle {
    font-size: 14px;
    max-width: 320px;
  }

  /* ============== 通用按钮 ============== */
  .cta-btn {
    display: inline-flex;
    gap: 4px;
    padding: 7px 16px;
    border-radius: 500px;
    font-size: 14px;
    box-shadow: 0 4px 8px rgba(7, 7, 7, 0.15);
  }

  .cta-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 5px 12px rgba(7, 7, 7, 0.22);
  }

  .cta-btn-lg {
    padding: 9px 22px;
    font-size: 14px;
  }

  .cta-btn:hover .cta-btn-arrow {
    transform: translateX(2px);
  }

  .ghost-btn {
    display: inline-flex;
    gap: 3px;
    padding: 6px 10px;
    border-radius: 500px;
    font-size: 14px;
    border: 1px solid var(--grey-300);
    text-align: center;
    justify-content: center;
  }

  .page-actions {
    display: flex;
    gap: 8px;
    margin: 16px auto 0;
    flex-wrap: wrap;
    max-width: 683px;
  }

  /* ============== 第 1 页：欢迎页 ============== */
  .welcome-card {
    margin: 12px auto 0;
    padding: 0 0 24px;
  }

  .welcome-glow {
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
  }

  .welcome-badge {
    display: inline-flex;
    gap: 4px;
    padding: 3px 8px;
    border: 1px solid var(--grey-200);
    border-radius: 500px;
    font-size: 14px;
    margin-bottom: 14px;
  }

  .welcome-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(122, 201, 67, 0.2);
  }

  @keyframes pulseDot {

    0%,
    100% {
      box-shadow: 0 0 0 3px rgba(122, 201, 67, 0.2);
    }

    50% {
      box-shadow: 0 0 0 5px rgba(122, 201, 67, 0);
    }
  }

  .welcome-title {
    font-size: 22px;
    letter-spacing: -1px;
    margin-bottom: 9px;
  }

  .grad-text {
    background: linear-gradient(135deg, #2a2a2a 0%, #5a8a30 50%, #7ac943 100%);
  }

  .welcome-subtitle {
    font-size: 14px;
    margin: 0 auto 18px;
  }

  /* AI 机器人对话 */
  .welcome-bot {
    display: flex;
    align-items: flex-end;
    gap: 7px;
    max-width: 290px;
    margin: 0 auto 18px;
  }

  .welcome-bot-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    gap: 3px;
    box-shadow: 0 4px 8px rgba(122, 201, 67, 0.4);
  }

  .welcome-bot-avatar::before,
  .welcome-bot-avatar::after {
    bottom: -2px;
    width: 7px;
    height: 3px;
    border-radius: 0 0 8px 8px;
  }

  .welcome-bot-avatar::before {
    left: 4px;
  }

  .welcome-bot-avatar::after {
    right: 4px;
  }

  .welcome-bot-eye {
    width: 4px;
    height: 4px;
    border-radius: 50%;
  }

  .welcome-bot-bubble {
    flex: 1;
    border: 1px solid var(--grey-200);
    border-bottom-left-radius: 2px;
    border-radius: 10px;
    padding: 7px 9px;
    font-size: 14px;
  }

  /* 流程示意 */
  .welcome-flow {
    display: flex;
    gap: 6px;
    margin: 0 auto 32px;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .flow-step {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 5px 8px;
    border: 1px solid var(--grey-200);
    min-width: none;
    width: calc(50% - 4px);
    min-height: 62px;
  }

  .flow-step:hover {
    transform: translateY(-1px);
  }

  .flow-num {
    font-size: 14px;
    letter-spacing: 1px;
  }

  .flow-label {
    font-size: 14px;
  }

  .flow-arrow {
    font-size: 14px;
  }

  .welcome-foot {
    display: flex;
    gap: 5px;
    margin-top: 14px;
    font-size: 14px;
    flex-wrap: wrap;
  }

  /* ============== 第 2 页：AI 对话问诊 ============== */
  .chat-progress {
    max-width: 240px;
    margin: 10px auto 0;
    height: 3px;
    border-radius: 500px;
    overflow: visible;
    display: none;
  }

  .chat-progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 500px;
  }

  .chat-progress-text {
    top: -11px;
    font-size: 14px;
  }

  .chat-frame {
    max-width: 490px;
    padding: 12px;
  }

  /* 对话式问诊：保持适中宽度，营造贴近真实对话的体验 */
  .page-chat .chat-frame {
    max-width: 410px;
    padding: 14px 14px 12px;
  }

  /* 对话式问诊：整体文字小一档 */
  .page-chat .page-title {
    font-size: 20px;
  }

  .page-chat .page-subtitle {
    font-size: 14px;
  }

  .page-chat .chat-progress-text {
    font-size: 14px;
  }

  .page-chat .chat-avatar {
    font-size: 14px;
    width: 22px;
    height: 22px;
  }

  .page-chat .chat-bubble {
    font-size: 14px;
    padding: 5px 7px;
  }

  .page-chat .chat-option {
    font-size: 14px;
    padding: 4px 6px 4px 4px;
  }

  .page-chat .chat-option::before {
    width: 12px;
    height: 12px;
  }

  .page-chat .chat-input-row input,
  .page-chat .chat-input-row button {
    font-size: 14px;
  }

  .page-chat .chat-customer-input {
    font-size: 14px;
    padding: 5px 6px;
  }

  .page-chat .chat-customer-form-submit {
    font-size: 14px;
  }

  .page-chat .chat-actions .cta-btn,
  .page-chat .chat-actions .ghost-btn {
    font-size: 14px;
    padding: 6px 13px;
  }

  .chat-list {
    display: flex;
    flex-direction: column;
    gap: 9px;
  }

  .chat-msg {
    display: flex;
    gap: 5px;
  }

  @keyframes msgFadeIn {
    from {
      opacity: 0;
      transform: translateY(4px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .chat-msg.user {
    flex-direction: row-reverse;
  }

  .chat-avatar {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    font-size: 14px;
  }

  .chat-msg.user .chat-avatar {
    background: linear-gradient(135deg, #b3d9ff 0%, #4a90e2 100%);
  }

  .chat-content {
    max-width: 78%;
  }

  .chat-bubble {
    padding: 6px 8px;
    border-radius: 10px;
    font-size: 14px;
  }

  .chat-msg.ai .chat-bubble {
    border: 1px solid var(--grey-200);
    border-top-left-radius: 2px;
  }

  .chat-msg.user .chat-bubble {
    border-top-right-radius: 2px;
  }

  /* 单页问诊：6 题同屏 */
  .survey-all-wrap {
    max-width: 100%;
    margin: 6px auto 0;
    padding-bottom: 4px;
  }

  .survey-block {
    margin-bottom: 9px;
    padding: 9px 9px 10px;
  }

  .survey-block-title {
    font-size: 14px;
    margin-bottom: 6px;
  }

  .survey-block--error {
    border: 1px solid #e53935;
  }

  .chat-options {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 5px;
  }

  .chat-options .chat-input-row {
    flex-basis: 100%;
    width: 100%;
  }

  /* 选项：参考极简慕枫联系页 — 左侧方框 + 文案（未选：线框；选中：实心 + 中心白方块） */
  .chat-option {
    display: inline-flex;
    gap: 5px;
    padding: 4px 7px 4px 4px;
    font-size: 14px;
  }

  .chat-option::before {
    width: 7px;
    height: 7px;
    flex-shrink: 0;
    border: 1px solid var(--primary);
  }

  .chat-input-row {
    margin-top: 4px;
    display: flex;
    gap: 4px;
  }

  .chat-input-row input {
    flex: 1;
    padding: 5px 7px;
    border-radius: 500px;
    border: 1.5px solid var(--grey-200);
    font-size: 14px;
  }

  .chat-input-row button {
    padding: 4px 9px;
    border-radius: 500px;
    font-size: 14px;
  }

  /* 问诊最后一题：客户资料（2×3） */
  .chat-options--form {
    width: 100%;
    max-width: 680px;
  }

  .chat-customer-form {
    width: 100%;
    max-width: 680px;
    padding: 1px 0 2px;
  }

  .chat-customer-form-heading {
    font-size: 14px;
    margin-bottom: 6px;
  }

  .chat-customer-form-grid {
    gap: 5px 12px;
  }

  .chat-customer-input {
    width: 100%;
    padding: 5px 6px;
    border: 1px solid var(--grey-300);
    font-size: 14px;
  }

  .chat-customer-form-submit {
    margin-top: 7px;
    width: 100%;
    padding: 5px 8px;
    border-radius: 500px;
    font-size: 14px;
  }

  .chat-actions {
    max-width: 490px;
    margin: 12px auto 0;
    display: flex;
    gap: 8px;
  }

  .page-chat .chat-actions {
    max-width: 410px;
  }

  /* AI typing 三点动效 */
  .chat-typing {
    display: inline-flex;
    gap: 2px;
    padding: 2px 0;
  }

  .chat-typing span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
  }

  /* ============== 对话式问诊：AI 提问头部 + 选项面板 ============== */
  .chat-msg.ai .chat-bubble .qhead {
    font-size: 10px;
    margin-bottom: 3px;
  }

  .chat-msg.ai .chat-bubble .qtitle {
    font-size: 14px;
  }

  .chat-msg.ai .chat-bubble .qhint {
    margin-top: 3px;
    font-size: 14px;
  }

  /* 用户回答前的交互面板（紧跟在 AI 提问下） */
  .qa-panel {
    margin-left: 23px;
    padding: 7px 8px;
    border: 1px solid var(--grey-200);
  }

  @keyframes qaPanelIn {
    from {
      opacity: 0;
      transform: translateY(3px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .qa-panel--form {
    padding: 8px 9px 9px;
  }

  .qa-panel-foot {
    margin-top: 6px;
    display: flex;
    justify-content: flex-end;
    gap: 5px;
  }

  .qa-next-btn {
    padding: 4px 8px;
    border-radius: 500px;
    font-size: 14px;
  }

  .qa-next-btn:hover:not(:disabled) {
    transform: translateX(1px);
  }

  /* AI typing 占位气泡（自身气泡缩小一些） */
  .chat-typing-msg .chat-bubble {
    padding: 5px 7px;
    min-width: 28px;
  }

  /* ============== 第 3 页：AI 诊断中（加载页） ============== */
  .loading-wrap {
    max-width: 320px;
    margin: 30px auto 0;
    padding: 24px 16px;
    border: 1px solid var(--grey-200);
  }

  .loading-orb {
    width: 80px;
    height: 80px;
    margin: 0 auto 14px;
    display: flex;
  }

  .orb-ring {
    border-radius: 50%;
    border: 2px solid transparent;
  }

  .orb-ring-1 {
    width: 100%;
    height: 100%;
  }

  .orb-ring-2 {
    width: 75%;
    height: 75%;
  }

  .orb-ring-3 {
    width: 50%;
    height: 50%;
  }

  .orb-core {
    width: 36%;
    height: 36%;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, #2a2a2a 100%);
    display: flex;
    font-size: 14px;
    box-shadow: 0 4px 8px rgba(7, 7, 7, 0.2);
  }

  .loading-title {
    font-size: 18px;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
  }

  .loading-subtitle {
    font-size: 14px;
    margin-bottom: 16px;
  }

  .loading-steps {
    margin-bottom: 12px;
  }

  .loading-steps li {
    display: flex;
    gap: 6px;
    padding: 7px 9px;
    margin-bottom: 4px;
    border: 1px solid var(--grey-200);
  }

  .loading-steps li.active {
    box-shadow: 0 4px 8px rgba(122, 201, 67, 0.15);
  }

  .loading-steps .ls-icon {
    font-size: 17px;
    flex-shrink: 0;
  }

  .loading-steps .ls-text {
    flex: 1;
    font-size: 14px;
  }

  .loading-steps .ls-status {
    font-size: 14px;
  }

  .loading-steps li.active .ls-status::after {
    margin-left: 2px;
    width: 6px;
  }

  .loading-foot {
    font-size: 14px;
  }

  /* ============== 第 4 页：网站定位与全年角色 ============== */
  .position-grid {
    gap: 10px;
    max-width: 683px;
  }

  .info-card {
    width: 100%;
    border: 1px solid var(--grey-200);
    padding: 12px;
  }

  .info-card-primary {
    background: linear-gradient(135deg, #fff 0%, #fafef3 100%);
  }

  .info-card-head {
    display: flex;
    gap: 5px;
    margin-bottom: 10px;
    padding-bottom: 7px;
    border-bottom: 1px dashed var(--grey-200);
  }

  .info-card-icon {
    font-size: 17px;
  }

  .info-card-title {
    flex: 1;
    font-size: 14px;
  }

  .info-card-tag {
    padding: 2px 5px;
    border-radius: 500px;
    font-size: 14px;
  }

  .info-list li {
    display: flex;
    padding: 5px 0;
    font-size: 14px;
    border-bottom: 1px dashed var(--grey-100);
  }

  .info-k {
    flex-shrink: 0;
  }

  .info-v {
    margin-left: 7px;
  }

  .role-block {
    margin-bottom: 9px;
  }

  .role-title {
    font-size: 14px;
    margin-bottom: 5px;
    letter-spacing: 0.5px;
  }

  .role-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .role-tag {
    padding: 3px 7px;
    border-radius: 500px;
    font-size: 14px;
    letter-spacing: 0.3px;
  }

  .value-list li {
    display: flex;
    align-items: flex-start;
    gap: 5px;
    font-size: 14px;
    padding: 3px 0;
  }

  .check-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 1px;
  }

  .strategy-bar {
    max-width: 683px;
    margin: 12px auto 0;
    background: linear-gradient(135deg, var(--primary) 0%, #1a1a1a 100%);
    padding: 12px 14px;
  }

  .strategy-label {
    font-size: 15px;
    margin-bottom: 9px;
  }

  .strategy-text {
    font-size: 14px;
  }

  /* ============== 第 5 页：年度增长目标 ============== */
  .goals-stack {
    max-width: 683px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .goal-card {
    border: 1.5px solid var(--grey-200);
    padding: 14px 16px;
  }

  .goal-card::before {
    width: 3px;
    height: 100%;
  }

  .goal-card:hover {
    transform: translateY(-1px);
  }

  .goal-card-2::before {
    background: linear-gradient(180deg,
        var(--secondary) 0%,
        var(--secondary-deep) 100%);
  }

  .goal-card-3::before {
    background: linear-gradient(180deg, var(--warm) 0%, var(--pink) 100%);
  }

  .goal-card-2 {
    background: linear-gradient(135deg, #fff 0%, #fafef3 100%);
  }

  .goal-card .pr {
    position: static;
    justify-content: flex-end;
    margin-bottom: 10px;
    top: 12px;
    right: 16px;
    display: flex;
    flex-wrap: wrap;
  }

  .goal-num {
    padding: 2px 6px;
    border-radius: 500px;
    font-size: 14px;
    letter-spacing: 0.5px;
  }

  .goal-recommend {
    padding: 2px 6px;
    border-radius: 500px;
    font-size: 14px;
  }

  .goal-head {
    display: flex;
    gap: 7px;
    margin-bottom: 8px;
    flex-wrap: wrap;
  }

  .goal-title {
    font-size: 17px;
    letter-spacing: -0.3px;
  }

  .goal-vs {
    padding: 2px 6px;
    border-radius: 500px;
    font-size: 14px;
    border: 1px solid var(--grey-200);
  }

  .goal-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    padding: 4px 0;
    font-size: 14px;
  }

  .goal-row-k {
    flex-shrink: 0;
    width: 100%;
    font-size: 14px;
    text-decoration: underline;
  }

  .goal-row-v {
    flex: none;
    width: 100%;
  }

  .goal-link {
    font-size: 14px;
  }

  /* ============== 第 6 页：方案与报价详情 ============== */
  .plans-grid {
    gap: 9px;
    max-width: 600px;
  }

  .plan-card {
    border: 1.5px solid var(--grey-200);
    padding: 14px 12px;
    display: flex;
    flex-direction: column;
  }

  .plan-recommended {
    padding-top: 30px;
  }

  .plan-recommend-bar {
    top: -1px;
    left: -1px;
    right: -1px;
    padding: 4px 7px;
    font-size: 14px;
    letter-spacing: 0.5px;
  }

  .plan-tag {
    align-self: flex-start;
    padding: 2px 6px;
    border-radius: 500px;
    font-size: 14px;
    margin-bottom: 6px;
  }

  .plan-title {
    font-size: 20px;
    letter-spacing: -0.3px;
    margin-bottom: 2px;
  }

  .plan-target {
    font-size: 14px;
    margin-bottom: 9px;
  }

  .plan-price {
    display: flex;
    gap: 2px;
    margin-bottom: 2px;
  }

  .plan-price-num {
    font-size: 36px;
    letter-spacing: -1px;
  }

  .plan-price-unit {
    font-size: 14px;
  }

  .plan-monthly {
    font-size: 14px;
    margin-bottom: 11px;
    padding-bottom: 9px;
    border-bottom: 1px dashed var(--grey-200);
  }

  .plan-features {
    margin-bottom: 9px;
  }

  .plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 5px;
    font-size: 14px;
    padding: 3px 0;
  }

  .feat-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-flex;
    font-size: 10px;
    flex-shrink: 0;
    margin-top: 1px;
  }

  .plan-list-title {
    font-size: 14px;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
  }

  .plan-checklist {
    margin-bottom: 11px;
    padding: 6px 7px;
    border: 1px dashed var(--grey-200);
  }

  .plan-checklist li {
    font-size: 14px;
    padding: 1px 0;
  }

  .plan-btn {
    padding: 7px 10px;
    border-radius: 500px;
    border: 1.5px solid var(--primary);
    font-size: 14px;
    width: 100%;
  }

  .plan-btn-primary:hover {
    box-shadow: 0 5px 12px rgba(7, 7, 7, 0.25);
  }

  /* 单项增购 */
  .addon-section {
    max-width: 600px;
    margin: 20px auto 0;
    padding: 14px;
    border: 1px dashed var(--grey-300);
  }

  /* 第 6 页：与方案栅格同宽对齐 */
  .addon-section--after-plans {
    max-width: 600px;
    margin: 14px auto 0;
  }

  .addon-title {
    font-size: 14px;
    margin-bottom: 2px;
  }

  .addon-subtitle {
    font-size: 14px;
    margin-bottom: 9px;
  }

  .addon-grid {
    gap: 6px;
  }

  button.addon-card {
    padding: 8px 7px 8px;
    padding-top: 14px;
  }

  .addon-card {
    padding: 8px;
    border: 2px solid var(--grey-200);
  }

  .addon-card:hover {
    transform: translateY(-1px);
  }

  .addon-card.selected {
    background: linear-gradient(135deg, #fff 0%, var(--light-bg) 100%);
    box-shadow: 0 4px 7px rgba(7, 7, 7, 0.08);
  }

  .addon-check {
    top: 4px;
    right: 4px;
    width: 16px;
    height: 16px;
    border-radius: 6px;
    border: 2px solid var(--grey-300);
    display: flex;
    font-size: 14px;
  }

  .addon-hint {
    margin-top: 7px;
    font-size: 14px;
  }

  .addon-hint strong {
    font-size: 14px;
  }

  .addon-submit-row {
    margin-top: 8px;
    display: flex;
  }

  .summary-addon-note {
    font-size: 14px;
    margin: 5px 0 0;
  }

  .plan-card.plan-selected {
    background: linear-gradient(180deg, #fff 0%, #fafef3 100%);
    box-shadow:
      0 0 0 2px var(--primary),
      0 6px 16px rgba(7, 7, 7, 0.12);
    transform: translateY(-3px);
  }

  .addon-icon {
    font-size: 20px;
    margin-bottom: 4px;
  }

  .addon-name {
    font-size: 14px;
    margin-bottom: 2px;
  }

  .addon-price {
    font-size: 14px;
  }

  /* ============== 第 7 页：报价汇总 ============== */
  .summary-card {
    max-width: 440px;
    border: 1.5px solid var(--grey-200);
  }

  .summary-head {
    display: flex;
    padding: 14px 16px;
    background: linear-gradient(135deg, var(--primary) 0%, #1a1a1a 100%);
    flex-wrap: wrap;
    gap: 10px;
  }

  .summary-tag {
    padding: 2px 5px;
    border-radius: 500px;
    font-size: 14px;
    margin-bottom: 4px;
  }

  .summary-plan-name {
    font-size: 20px;
    margin-bottom: 3px;
  }

  .summary-plan-desc {
    font-size: 14px;
  }

  .summary-price {
    display: flex;
    gap: 2px;
  }

  .summary-price-num {
    font-size: 36px;
    letter-spacing: -1px;
  }

  .summary-price-unit {
    font-size: 14px;
  }

  .summary-section {
    padding: 12px 16px;
    border-bottom: 1px solid var(--grey-200);
  }

  .summary-section-title {
    font-size: 14px;
    margin-bottom: 7px;
    letter-spacing: 0.3px;
  }

  .summary-table {
    width: 100%;
  }

  .summary-table tr {
    border-bottom: 1px dashed var(--grey-200);
  }

  .summary-table td {
    padding: 7px 0;
    font-size: 14px;
  }

  .td-desc {
    font-size: 14px;
  }

  .td-price {
    font-size: 14px;
  }

  .td-price-optional {
    font-size: 14px;
  }

  .summary-total {
    display: flex;
    margin-top: 9px;
    padding: 9px 11px;
    background: linear-gradient(135deg,
        var(--secondary) 0%,
        var(--secondary-deep) 100%);
  }

  .total-label {
    font-size: 14px;
  }

  .total-num {
    font-size: 20px;
    letter-spacing: -0.5px;
  }

  .info-line {
    display: flex;
    gap: 6px;
    padding: 4px 0;
    font-size: 14px;
  }

  .info-line-icon {
    font-size: 14px;
    flex-shrink: 0;
  }

  .info-line-k {
    width: 42px;
    font-size: 14px;
    flex-shrink: 0;
  }

  .info-line-v {
    flex: 1;
  }

  .deliverables li {
    padding: 4px 0;
    font-size: 14px;
  }

  /* ============== 第 8 页：品牌顾问对接 ============== */
  .consultant-card {
    max-width: 480px;
    border: 1.5px solid var(--grey-200);
  }

  .consultant-left {
    padding: 18px 14px;
    background: linear-gradient(135deg, var(--primary) 0%, #1a1a1a 100%);
    display: flex;
    flex-direction: column;
  }

  .consultant-left-main {
    width: 100%;
  }

  .consultant-qr-block {
    padding-top: 14px;
    width: 100%;
  }

  .consultant-qr-img {
    width: 100%;
    max-width: 170px;
    border-radius: 10px;
    padding: 5px;
  }

  .consultant-qr-hint {
    margin-top: 6px;
    font-size: 14px;
  }

  .consultant-name {
    font-size: 18px;
    margin-bottom: 2px;
  }

  .consultant-title {
    font-size: 14px;
    margin-bottom: 11px;
  }

  .consultant-stats {
    gap: 4px;
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
  }

  .stat-item {
    display: flex;
    flex-direction: column;
  }

  .stat-num {
    font-size: 17px;
  }

  .stat-label {
    font-size: 14px;
    margin-top: 1px;
  }

  .consultant-right {
    padding: 16px;
  }

  .cons-block {
    margin-bottom: 11px;
  }

  .cons-block-title {
    font-size: 14px;
    margin-bottom: 5px;
    letter-spacing: 0.3px;
  }

  .cons-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
  }

  .cons-tag {
    padding: 4px 7px;
    border-radius: 500px;
    font-size: 14px;
  }

  .cons-advantages li {
    padding-left: 16px;
    font-size: 14px;
    padding-top: 2px;
    padding-bottom: 2px;
  }

  .cons-advantages li::before {
    left: 2px;
    top: 2px;
    font-size: 10px;
  }

  .promise-grid {
    gap: 4px;
  }

  .promise-item {
    display: flex;
    gap: 4px;
    padding: 5px 7px;
    border: 1px solid var(--grey-200);
    font-size: 14px;
  }

  .promise-icon {
    font-size: 14px;
  }

  /* 联系卡片 */
  .contact-card {
    max-width: none;
    margin: 15px auto 21px;
  }

  .contact-info {
    max-width: 320px;
  }

  .contact-text {
    font-size: 14px;
  }

  .contact-text strong {
    padding: 0 2px;
    border-radius: 4px;
  }

  .page-consultant .ghost-btn {
    width: 160px;
  }

  .page-consultant .cta-btn {
    width: 160px;
  }

  /* ============== 底部 ============== */
  .ai-foot {
    padding: 16px 8px;
    font-size: 14px;
  }

  /* ============================================================
  极简商务主题（固定启用）
  参考 mfsunny 联系页：白底、高对比、细线、克制动效
  ============================================================ */
  html[data-theme="mfsunny"] {
    --radius-sm: 1px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 0 1px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 1px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.08);
  }

  html[data-theme="mfsunny"] .ai-step {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .welcome-bot-avatar {
    border: 1px solid #e5e5e5;
  }

  html[data-theme="mfsunny"] .flow-step {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .cta-btn {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .ghost-btn {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .chat-progress {
    height: 2px;
  }

  html[data-theme="mfsunny"] .chat-frame {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .chat-msg.ai .chat-avatar {
    border: 1px solid #e5e5e5;
  }

  html[data-theme="mfsunny"] .chat-option.selected::before {
    background:
      linear-gradient(#fff, #fff) center / 42% 42% no-repeat,
      #0a0a0a;
  }

  html[data-theme="mfsunny"] .survey-block {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .chat-input-row input {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .qa-panel {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .qa-next-btn {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .summary-head,
  html[data-theme="mfsunny"] .plan-card,
  html[data-theme="mfsunny"] .consultant-card,
  html[data-theme="mfsunny"] .contact-card,
  html[data-theme="mfsunny"] .goal-card {
    border-radius: 2px;
  }

  html[data-theme="mfsunny"] .plan-card.plan-selected {
    box-shadow:
      inset 0 0 0 1px #0a0a0a,
      var(--shadow-sm);
  }

  html[data-theme="mfsunny"] .addon-card.selected {
    box-shadow: inset 0 0 0 1px #0a0a0a;
  }

  html[data-theme="mfsunny"] .ai-foot {
    border-top: 1px solid #e5e5e5;
  }
}