/* Shared trip planner layout (solo + family) */
    .trip-planner {
      --sp-paper: #faf7f1;
      --sp-ink: #243c30;
      --sp-green: #2d5016;
      --sp-green-deep: #25402a;
      --sp-muted: #667366;
      --sp-line: #dcded3;
      --sp-orange: #b75532;
      --sp-card: #fffdf8;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 40px 48px;
      color: var(--sp-ink);
    }
    .trip-planner a:focus-visible,
    .trip-planner button:focus-visible {
      outline: 3px solid var(--sp-orange);
      outline-offset: 3px;
    }
    .trip-planner .sp-eyebrow {
      letter-spacing: 0.14em;
      text-transform: uppercase;
      font-size: 0.72rem;
      font-weight: 700;
      color: var(--sp-orange);
    }
    .trip-planner .sp-button {
      display: inline-flex;
      justify-content: center;
      align-items: center;
      gap: 0.35rem;
      padding: 0.8rem 1.35rem;
      border-radius: 8px;
      background: var(--sp-green);
      color: #fff;
      font-size: 0.95rem;
      font-weight: 700;
      border: 1px solid var(--sp-green);
      text-decoration: none;
      line-height: 1.2;
    }
    .trip-planner .sp-button:hover {
      background: var(--sp-green-deep);
      color: #fff;
    }
    .trip-planner .sp-button.secondary {
      background: transparent;
      color: var(--sp-green);
      border-color: var(--sp-line);
    }
    .trip-planner .sp-button.secondary:hover {
      background: rgba(45, 80, 22, 0.06);
      color: var(--sp-green);
    }

    .trip-planner .sp-hero {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      padding: 3.4rem 0 2.8rem;
      align-items: center;
    }
    .trip-planner .sp-hero h1 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: clamp(2.5rem, 5.2vw, 4.4rem);
      line-height: 1.05;
      letter-spacing: -0.04em;
      margin: 0.9rem 0 1.2rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-hero h1 em {
      color: #68835c;
      font-style: italic;
      font-weight: 400;
    }
    .trip-planner .sp-intro {
      max-width: 28rem;
      color: var(--sp-muted);
      font-size: 1.05rem;
      margin: 0;
    }
    .trip-planner .sp-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      margin: 1.5rem 0 0.85rem;
    }
    .trip-planner .sp-quiet {
      color: var(--sp-muted);
      font-size: 0.8rem;
      margin: 0;
    }
    .trip-planner .sp-hero-visual {
      position: relative;
      padding-bottom: 1.35rem;
    }
    .trip-planner .sp-hero-visual > img {
      width: 100%;
      height: 460px;
      object-fit: cover;
      border-radius: 90px 12px 12px 12px;
      display: block;
      background: #eeeede;
    }
    .trip-planner .sp-photo-label {
      position: absolute;
      left: 1.25rem;
      top: 1.25rem;
      background: rgba(255, 250, 240, 0.93);
      padding: 0.4rem 0.85rem;
      border-radius: 30px;
      font-size: 0.78rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-note {
      position: absolute;
      bottom: 0;
      left: -1.25rem;
      right: 1.5rem;
      background: var(--sp-card);
      padding: 1rem 1.35rem;
      box-shadow: 0 10px 35px rgba(36, 60, 48, 0.08);
      border: 1px solid var(--sp-line);
      border-radius: 9px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      text-decoration: none;
      color: inherit;
    }
    .trip-planner .sp-note:hover {
      color: inherit;
    }
    .trip-planner .sp-note strong {
      display: block;
      font-family: Georgia, "Times New Roman", serif;
      font-size: 1.25rem;
      font-weight: 400;
      margin: 0.15rem 0;
    }
    .trip-planner .sp-note small {
      color: var(--sp-muted);
      font-size: 0.78rem;
    }
    .trip-planner .sp-note .sp-arrow {
      font-size: 1.4rem;
      flex-shrink: 0;
    }

    .trip-planner .sp-benefits {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
      border-top: 1px solid var(--sp-line);
      border-bottom: 1px solid var(--sp-line);
      padding: 1.4rem 0;
    }
    .trip-planner .sp-benefits strong {
      display: block;
      font-size: 0.98rem;
      margin-bottom: 0.25rem;
    }
    .trip-planner .sp-benefits span {
      font-size: 0.88rem;
      color: var(--sp-muted);
    }

    .trip-planner .sp-section {
      padding: 3.2rem 0;
    }
    .trip-planner .sp-section h2 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: clamp(1.7rem, 3.2vw, 2.5rem);
      line-height: 1.15;
      letter-spacing: -0.025em;
      margin: 0.55rem 0 0.65rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-sub {
      color: var(--sp-muted);
      font-size: 0.98rem;
      margin: 0;
      max-width: 36rem;
    }
    .trip-planner .sp-filters {
      display: flex;
      gap: 0.5rem;
      flex-wrap: wrap;
      margin: 1.5rem 0;
    }
    .trip-planner .sp-filters button {
      background: transparent;
      color: var(--sp-green);
      border: 1px solid var(--sp-line);
      border-radius: 40px;
      padding: 0.55rem 1rem;
      font: inherit;
      font-size: 0.88rem;
      cursor: pointer;
    }
    .trip-planner .sp-filters button[aria-pressed="true"] {
      color: #fff;
      background: var(--sp-green);
      border-color: var(--sp-green);
    }
    .trip-planner .sp-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.4rem;
    }
    .trip-planner .sp-trip {
      border: 1px solid var(--sp-line);
      background: var(--sp-card);
      border-radius: 12px;
      overflow: hidden;
      text-decoration: none;
      color: inherit;
      transition: transform 0.18s ease;
      display: block;
    }
    .trip-planner .sp-trip:hover {
      transform: translateY(-4px);
      color: inherit;
    }
    .trip-planner .sp-trip[hidden] {
      display: none;
    }
    .trip-planner .sp-trip .sp-photo {
      position: relative;
    }
    .trip-planner .sp-trip img {
      display: block;
      width: 100%;
      height: 225px;
      object-fit: cover;
      background: #eeeede;
    }
    .trip-planner .sp-tag {
      position: absolute;
      bottom: 0.8rem;
      left: 0.85rem;
      padding: 0.25rem 0.65rem;
      background: var(--sp-card);
      color: var(--sp-ink);
      border-radius: 20px;
      font-size: 0.72rem;
    }
    .trip-planner .sp-trip-content {
      padding: 1.15rem 1.2rem 1.3rem;
    }
    .trip-planner .sp-meta {
      color: var(--sp-orange);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      font-size: 0.68rem;
      font-weight: 700;
    }
    .trip-planner .sp-trip h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.45rem;
      line-height: 1.2;
      margin: 0.45rem 0 0.7rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-trip p {
      font-size: 0.88rem;
      color: var(--sp-muted);
      margin: 0 0 1.1rem;
    }
    .trip-planner .sp-card-link {
      display: flex;
      justify-content: space-between;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--sp-ink);
    }

    .trip-planner .sp-more {
      margin-top: 2.5rem;
      padding-top: 2rem;
      border-top: 1px solid var(--sp-line);
    }
    .trip-planner .sp-more.sp-more-flush {
      border-top: 0;
      padding-top: 1.5rem;
      margin-top: 1.75rem;
    }
    .trip-planner .sp-more h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.45rem;
      margin: 0 0 0.4rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-guide-groups {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem 2rem;
      margin-top: 1.25rem;
    }
    .trip-planner .sp-guide-group h4 {
      margin: 0 0 0.55rem;
      font-size: 0.82rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--sp-orange);
    }
    .trip-planner .sp-guide-group ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 0.45rem;
    }
    .trip-planner .sp-guide-group a {
      color: var(--sp-green);
      font-size: 0.92rem;
      text-decoration: underline;
      text-underline-offset: 2px;
    }
    .trip-planner .sp-guide-group a:hover {
      color: var(--sp-green-deep);
    }
    .trip-planner .sp-also-list {
      list-style: none;
      margin: 1rem 0 0;
      padding: 0;
      display: grid;
      gap: 0.55rem;
    }
    .trip-planner .sp-also-list a {
      color: var(--sp-green);
      font-size: 0.95rem;
      text-decoration: underline;
      text-underline-offset: 2px;
    }
    .trip-planner .sp-also-list a:hover {
      color: var(--sp-green-deep);
    }

    .trip-planner .sp-example {
      border-top: 1px solid var(--sp-line);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
      padding: 3.2rem 0;
    }
    .trip-planner .sp-example-copy p {
      color: var(--sp-muted);
      max-width: 26rem;
      margin: 0 0 1rem;
    }
    .trip-planner .sp-example-copy .sp-button {
      margin-top: 0.4rem;
    }
    .trip-planner .sp-itinerary {
      background: #eeeede;
      border: 1px solid #dddccb;
      border-radius: 15px;
      padding: 1.5rem;
    }
    .trip-planner .sp-itinerary-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #d3d6c6;
      padding-bottom: 1.1rem;
      margin-bottom: 0.75rem;
    }
    .trip-planner .sp-itinerary-top h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.4rem;
      margin: 0.15rem 0 0;
      color: var(--sp-ink);
    }
    .trip-planner .sp-itinerary-top small {
      color: var(--sp-muted);
      font-size: 0.75rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }
    .trip-planner .sp-stop {
      display: grid;
      grid-template-columns: 4rem 1fr;
      gap: 0.65rem;
      padding: 0.85rem 0;
      border-bottom: 1px solid #d3d6c6;
      font-size: 0.9rem;
    }
    .trip-planner .sp-stop:last-child {
      border-bottom: 0;
    }
    .trip-planner .sp-stop time {
      color: var(--sp-muted);
      font-size: 0.8rem;
    }
    .trip-planner .sp-stop strong {
      display: block;
      color: var(--sp-ink);
    }
    .trip-planner .sp-stop strong.sp-open {
      color: #57734a;
    }
    .trip-planner .sp-stop span {
      color: var(--sp-muted);
      font-size: 0.8rem;
    }

    .trip-planner .sp-bottom {
      background: var(--sp-green);
      color: #fffdf8;
      border-radius: 16px;
      padding: 2.2rem 2.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.75rem;
      margin: 0.5rem 0 2rem;
    }
    .trip-planner .sp-bottom h2 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: clamp(1.6rem, 2.8vw, 2.2rem);
      margin: 0 0 0.45rem;
      color: #fffdf8;
    }
    .trip-planner .sp-bottom p {
      opacity: 0.88;
      margin: 0;
    }
    .trip-planner .sp-bottom .sp-button {
      background: #fffdf8;
      color: var(--sp-green);
      border-color: #fffdf8;
      flex-shrink: 0;
    }
    .trip-planner .sp-bottom .sp-button:hover {
      background: #f3efe4;
      color: var(--sp-green);
    }

    .trip-planner .sp-footer {
      border-top: 1px solid var(--sp-line);
      padding: 1.25rem 0 0.5rem;
      color: var(--sp-muted);
      font-size: 0.78rem;
      display: flex;
      justify-content: space-between;
      gap: 1.25rem;
      flex-wrap: wrap;
    }
    .trip-planner .sp-footer a {
      color: var(--sp-green);
      text-decoration: underline;
      text-underline-offset: 2px;
    }


    .trip-planner .sp-thumbs {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1rem;
      margin-top: 1.25rem;
    }
    .trip-planner .sp-thumb {
      border: 1px solid var(--sp-line);
      background: var(--sp-card);
      border-radius: 12px;
      overflow: hidden;
      text-decoration: none;
      color: inherit;
      display: block;
      transition: transform 0.18s ease;
    }
    .trip-planner .sp-thumb:hover {
      transform: translateY(-3px);
      color: inherit;
    }
    .trip-planner .sp-thumb[hidden] {
      display: none;
    }
    .trip-planner .sp-thumb img {
      display: block;
      width: 100%;
      height: 140px;
      object-fit: cover;
      background: #eeeede;
    }
    .trip-planner .sp-thumb-body {
      padding: 0.85rem 0.9rem 1rem;
    }
    .trip-planner .sp-thumb-body .sp-meta {
      margin-bottom: 0.35rem;
    }
    .trip-planner .sp-thumb-body strong {
      display: block;
      font-size: 0.92rem;
      line-height: 1.35;
      font-weight: 650;
      color: var(--sp-ink);
    }

    @media (max-width: 900px) {
      .trip-planner {
        padding: 0 22px 40px;
      }
      .trip-planner .sp-hero {
        grid-template-columns: 1fr;
        gap: 1.75rem;
        padding: 2.2rem 0 1.75rem;
      }
      .trip-planner .sp-hero-visual > img {
        height: 340px;
        border-radius: 48px 12px 12px 12px;
      }
      .trip-planner .sp-note {
        left: 0.75rem;
        right: 0.75rem;
      }
      .trip-planner .sp-benefits {
        grid-template-columns: 1fr;
        gap: 1rem;
      }
      .trip-planner .sp-cards {
        grid-template-columns: 1fr;
      }
      .trip-planner .sp-thumbs {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
      .trip-planner .sp-thumb img {
        height: 120px;
      }
      .trip-planner .sp-trip img {
        height: 240px;
      }
      .trip-planner .sp-guide-groups {
        grid-template-columns: 1fr;
      }
      .trip-planner .sp-example {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 2.2rem 0;
      }
      .trip-planner .sp-bottom {
        display: block;
        padding: 1.6rem;
      }
      .trip-planner .sp-bottom .sp-button {
        margin-top: 1.1rem;
      }
      .trip-planner .sp-section {
        padding: 2.2rem 0;
      }
      .trip-planner .sp-footer {
        display: block;
      }
      .trip-planner .sp-footer span + span {
        display: block;
        margin-top: 0.65rem;
      }
    }
    @media (prefers-reduced-motion: reduce) {
      .trip-planner .sp-trip,
      .trip-planner .sp-thumb {
        transition: none;
      }
    }

    /* Multi-city planner: route schematic, region browse, principles */
    .trip-planner--multi-city .sp-route {
      background: #eeeede;
      border: 1px solid #dddccb;
      border-radius: 15px;
      padding: 1.5rem;
    }
    .trip-planner--multi-city .sp-route-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 1rem;
      border-bottom: 1px solid #d3d6c6;
      padding-bottom: 1.1rem;
      margin-bottom: 1rem;
    }
    .trip-planner--multi-city .sp-route-top h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.4rem;
      margin: 0.15rem 0 0;
      color: var(--sp-ink);
    }
    .trip-planner--multi-city .sp-route-top small {
      color: var(--sp-muted);
      font-size: 0.75rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }
    .trip-planner--multi-city .sp-route-badge {
      flex-shrink: 0;
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      color: var(--sp-green);
      background: rgba(45, 80, 22, 0.08);
      border: 1px solid var(--sp-line);
      border-radius: 20px;
      padding: 0.35rem 0.7rem;
    }
    .trip-planner--multi-city .sp-route-flow {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 0;
    }
    .trip-planner--multi-city .sp-route-flow > li {
      display: grid;
      grid-template-columns: 1.1rem 1fr;
      gap: 0.85rem;
      align-items: start;
      position: relative;
      padding: 0.7rem 0;
    }
    .trip-planner--multi-city .sp-route-flow > li:not(:last-child)::before {
      content: "";
      position: absolute;
      left: 0.4rem;
      top: 1.45rem;
      bottom: -0.15rem;
      width: 2px;
      background: #d3d6c6;
    }
    .trip-planner--multi-city .sp-route-dot {
      width: 0.85rem;
      height: 0.85rem;
      border-radius: 50%;
      border: 2px solid var(--sp-green);
      background: var(--sp-card);
      margin-top: 0.2rem;
      z-index: 1;
    }
    .trip-planner--multi-city .sp-route-flow > li.is-transfer .sp-route-dot {
      border-color: #8a947c;
      background: #eeeede;
    }
    .trip-planner--multi-city .sp-route-city {
      display: block;
      font-weight: 700;
      color: var(--sp-ink);
      font-size: 0.98rem;
    }
    .trip-planner--multi-city .sp-route-meta {
      display: block;
      color: var(--sp-muted);
      font-size: 0.82rem;
      margin-top: 0.15rem;
    }
    .trip-planner--multi-city .sp-route-note {
      margin: 1rem 0 0;
      font-size: 0.8rem;
      color: var(--sp-muted);
    }
    .trip-planner--multi-city .sp-route-note a {
      color: var(--sp-green);
      text-decoration: underline;
      text-underline-offset: 2px;
    }
    .trip-planner .sp-card-route {
      color: var(--sp-muted);
      font-size: 0.82rem;
      margin: -0.35rem 0 0.85rem;
    }
    .trip-planner .sp-principles {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.25rem 1.75rem;
      margin-top: 1.25rem;
    }
    .trip-planner .sp-principle {
      border-top: 1px solid var(--sp-line);
      padding-top: 1rem;
    }
    .trip-planner .sp-principle h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.2rem;
      margin: 0 0 0.45rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-principle p {
      margin: 0;
      color: var(--sp-muted);
      font-size: 0.92rem;
    }
    .trip-planner .sp-principle a {
      color: var(--sp-green);
      text-decoration: underline;
      text-underline-offset: 2px;
    }
    .trip-planner .sp-region {
      margin-top: 1.75rem;
    }
    .trip-planner .sp-region[hidden] {
      display: none;
    }
    .trip-planner .sp-region h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.25rem;
      margin: 0 0 0.85rem;
      color: var(--sp-ink);
    }
    .trip-planner .sp-thumb-fallback {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      height: 140px;
      background: linear-gradient(145deg, #eeeede, #e4e6d8);
      color: var(--sp-muted);
      font-size: 0.78rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }
    .trip-planner--road-trip .sp-drive-note {
      margin: 0.85rem 0 0;
      font-size: 0.8rem;
      color: var(--sp-muted);
    }
    .trip-planner--road-trip .sp-drive-note a {
      color: var(--sp-green);
      text-decoration: underline;
      text-underline-offset: 2px;
    }
    @media (max-width: 900px) {
      .trip-planner .sp-principles {
        grid-template-columns: 1fr;
      }
    }

    /* AI trip planner: product-story layout */
    .trip-planner--ai .ai-hero-stack {
      display: grid;
      gap: 1rem;
    }
    .trip-planner--ai .ai-hero-photo {
      position: relative;
    }
    .trip-planner--ai .ai-hero-photo > img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      border-radius: 72px 12px 12px 12px;
      display: block;
      background: #eeeede;
    }
    .trip-planner--ai .ai-plan-card {
      background: var(--sp-card);
      border: 1px solid var(--sp-line);
      border-radius: 14px;
      padding: 1.1rem 1.2rem 1.2rem;
      box-shadow: 0 10px 30px rgba(36, 60, 48, 0.06);
    }
    .trip-planner--ai .ai-plan-card-label {
      display: inline-block;
      font-size: 0.68rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--sp-orange);
      margin-bottom: 0.55rem;
    }
    .trip-planner--ai .ai-plan-card h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.25rem;
      margin: 0 0 0.7rem;
      color: var(--sp-ink);
    }
    .trip-planner--ai .ai-plan-route {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4rem;
      margin: 0 0 0.85rem;
      padding: 0;
      list-style: none;
    }
    .trip-planner--ai .ai-plan-route li {
      background: rgba(45, 80, 22, 0.08);
      color: var(--sp-green);
      border-radius: 20px;
      padding: 0.28rem 0.7rem;
      font-size: 0.78rem;
      font-weight: 650;
    }
    .trip-planner--ai .ai-plan-days {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 0.45rem;
    }
    .trip-planner--ai .ai-plan-days li {
      display: grid;
      grid-template-columns: 3.2rem 1fr;
      gap: 0.55rem;
      font-size: 0.86rem;
      color: var(--sp-muted);
    }
    .trip-planner--ai .ai-plan-days strong {
      color: var(--sp-ink);
      font-weight: 650;
    }

    .trip-planner--ai .ai-bridge {
      border-top: 1px solid var(--sp-line);
      border-bottom: 1px solid var(--sp-line);
      padding: 2rem 0;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 2.5rem;
      align-items: center;
    }
    .trip-planner--ai .ai-bridge-flow {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.55rem;
    }
    .trip-planner--ai .ai-chip {
      display: inline-flex;
      align-items: center;
      padding: 0.45rem 0.85rem;
      border-radius: 999px;
      border: 1px solid var(--sp-line);
      background: var(--sp-card);
      font-size: 0.86rem;
      color: var(--sp-ink);
    }
    .trip-planner--ai .ai-chip.is-result {
      background: var(--sp-green);
      border-color: var(--sp-green);
      color: #fffdf8;
      font-weight: 700;
    }
    .trip-planner--ai .ai-bridge-arrow {
      color: var(--sp-muted);
      font-size: 1.1rem;
    }
    .trip-planner--ai .ai-bridge-copy p {
      margin: 0 0 0.7rem;
      color: var(--sp-muted);
      font-size: 0.95rem;
      max-width: 28rem;
    }
    .trip-planner--ai .ai-bridge-copy p:last-child {
      margin-bottom: 0;
    }

    .trip-planner--ai .ai-story-stages {
      display: grid;
      gap: 1.25rem;
      margin-top: 1.5rem;
    }
    .trip-planner--ai .ai-stage {
      display: grid;
      grid-template-columns: 7.5rem 1fr;
      gap: 1.25rem;
      padding: 1.25rem 0;
      border-top: 1px solid var(--sp-line);
    }
    .trip-planner--ai .ai-stage:last-child {
      border-bottom: 1px solid var(--sp-line);
    }
    .trip-planner--ai .ai-stage-num {
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--sp-orange);
    }
    .trip-planner--ai .ai-stage h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.35rem;
      margin: 0.2rem 0 0.55rem;
      color: var(--sp-ink);
    }
    .trip-planner--ai .ai-stage p {
      margin: 0 0 0.75rem;
      color: var(--sp-muted);
      font-size: 0.95rem;
      max-width: 40rem;
    }
    .trip-planner--ai .ai-prompt {
      background: #eeeede;
      border: 1px solid #dddccb;
      border-radius: 12px;
      padding: 0.95rem 1.1rem;
      color: var(--sp-ink);
      font-size: 0.95rem;
      max-width: 36rem;
    }
    .trip-planner--ai .ai-prompt cite {
      display: block;
      margin-top: 0.45rem;
      font-style: normal;
      font-size: 0.75rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--sp-muted);
    }

    .trip-planner--ai .ai-demo {
      background: var(--sp-card);
      border: 1px solid var(--sp-line);
      border-radius: 15px;
      padding: 1.25rem;
      margin-top: 0.85rem;
    }
    .trip-planner--ai .ai-demo-top {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 0.85rem;
      align-items: center;
      margin-bottom: 1rem;
    }
    .trip-planner--ai .ai-demo-top h4 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.25rem;
      margin: 0.15rem 0 0;
      color: var(--sp-ink);
    }
    .trip-planner--ai .ai-demo-top small {
      display: block;
      color: var(--sp-muted);
      font-size: 0.72rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }
    .trip-planner--ai .ai-toggle {
      display: inline-flex;
      gap: 0.35rem;
      flex-wrap: wrap;
    }
    .trip-planner--ai .ai-toggle button {
      background: transparent;
      color: var(--sp-green);
      border: 1px solid var(--sp-line);
      border-radius: 40px;
      padding: 0.5rem 0.95rem;
      font: inherit;
      font-size: 0.86rem;
      cursor: pointer;
    }
    .trip-planner--ai .ai-toggle button[aria-pressed="true"] {
      background: var(--sp-green);
      border-color: var(--sp-green);
      color: #fff;
    }
    .trip-planner--ai .ai-day-panel[hidden] {
      display: none;
    }
    .trip-planner--ai .ai-change-note {
      margin: 0.85rem 0 0;
      padding: 0.75rem 0.9rem;
      border-left: 3px solid var(--sp-green);
      background: rgba(45, 80, 22, 0.06);
      color: var(--sp-ink);
      font-size: 0.9rem;
    }

    .trip-planner--ai .ai-annotate {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 2.5rem;
      align-items: start;
      margin-top: 1.5rem;
    }
    .trip-planner--ai .ai-annotate-list {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 1rem;
    }
    .trip-planner--ai .ai-annotate-list li {
      border-top: 1px solid var(--sp-line);
      padding-top: 0.9rem;
    }
    .trip-planner--ai .ai-annotate-list h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.15rem;
      margin: 0 0 0.4rem;
      color: var(--sp-ink);
    }
    .trip-planner--ai .ai-annotate-list p {
      margin: 0;
      color: var(--sp-muted);
      font-size: 0.92rem;
    }
    .trip-planner--ai .ai-annotate-list .ai-mark {
      display: inline-block;
      margin-bottom: 0.35rem;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--sp-orange);
    }

    .trip-planner--ai .ai-connect {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      margin-top: 1.5rem;
    }
    .trip-planner--ai .ai-connect-step {
      background: var(--sp-card);
      border: 1px solid var(--sp-line);
      border-radius: 14px;
      padding: 1.15rem 1.2rem;
    }
    .trip-planner--ai .ai-connect-step .ai-mark {
      display: block;
      margin-bottom: 0.45rem;
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--sp-orange);
    }
    .trip-planner--ai .ai-connect-step h3 {
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.2rem;
      margin: 0 0 0.45rem;
      color: var(--sp-ink);
    }
    .trip-planner--ai .ai-connect-step p {
      margin: 0;
      color: var(--sp-muted);
      font-size: 0.9rem;
    }
    .trip-planner--ai .ai-connect-note {
      margin: 1.15rem 0 0;
      color: var(--sp-muted);
      font-size: 0.9rem;
      max-width: 42rem;
    }

    .trip-planner--ai .ai-related {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1.5rem;
      margin-top: 1.75rem;
    }
    .trip-planner--ai .ai-related a {
      text-decoration: none;
      color: inherit;
      border: 1px solid var(--sp-line);
      background: var(--sp-card);
      border-radius: 12px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100%;
      transition: transform 0.18s ease;
    }
    .trip-planner--ai .ai-related a:hover {
      color: inherit;
      transform: translateY(-3px);
    }
    .trip-planner--ai .ai-related img {
      display: block;
      width: 100%;
      height: 220px;
      object-fit: cover;
      background: #eeeede;
    }
    .trip-planner--ai .ai-related-body {
      padding: 1.15rem 1.2rem 1.35rem;
      flex: 1;
    }
    .trip-planner--ai .ai-related-body .sp-meta {
      margin-bottom: 0.4rem;
    }
    .trip-planner--ai .ai-related-body strong {
      display: block;
      font-family: Georgia, "Times New Roman", serif;
      font-weight: 400;
      font-size: 1.35rem;
      line-height: 1.2;
      color: var(--sp-ink);
      margin-bottom: 0.45rem;
    }
    .trip-planner--ai .ai-related-body p {
      margin: 0;
      color: var(--sp-muted);
      font-size: 0.95rem;
      line-height: 1.45;
    }
    .trip-planner--ai .ai-more-links {
      margin: 2rem 0 0;
      padding: 1.15rem 1.25rem;
      border: 1px solid var(--sp-line);
      border-radius: 10px;
      background: rgba(45, 80, 22, 0.04);
      color: var(--sp-ink);
      font-size: 1.05rem;
      line-height: 1.55;
    }
    .trip-planner--ai .ai-more-links a {
      color: var(--sp-green);
      font-weight: 700;
      text-decoration: underline;
      text-underline-offset: 3px;
    }
    .trip-planner--ai .ai-more-links a:hover {
      color: var(--sp-green-deep);
    }

    @media (max-width: 900px) {
      .trip-planner--ai .ai-hero-photo > img {
        height: 220px;
        border-radius: 40px 12px 12px 12px;
      }
      .trip-planner--ai .ai-bridge,
      .trip-planner--ai .ai-annotate,
      .trip-planner--ai .ai-connect {
        grid-template-columns: 1fr;
        gap: 1.25rem;
      }
      .trip-planner--ai .ai-related {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.25rem;
      }
      .trip-planner--ai .ai-related a:last-child {
        grid-column: 1 / -1;
        max-width: 28rem;
        justify-self: center;
        width: 100%;
      }
      .trip-planner--ai .ai-related img {
        height: 200px;
      }
      .trip-planner--ai .ai-stage {
        grid-template-columns: 1fr;
        gap: 0.35rem;
      }
      .trip-planner--ai .ai-more-links {
        font-size: 1.02rem;
        padding: 1.1rem 1.15rem;
      }
    }
    @media (max-width: 600px) {
      .trip-planner--ai .ai-related {
        grid-template-columns: 1fr;
      }
      .trip-planner--ai .ai-related a:last-child {
        grid-column: auto;
        max-width: none;
        justify-self: stretch;
      }
      .trip-planner--ai .ai-related img {
        height: 210px;
      }
      .trip-planner--ai .ai-related-body strong {
        font-size: 1.28rem;
      }
      .trip-planner--ai .ai-more-links {
        font-size: 1rem;
        padding: 1rem 1.05rem;
      }
    }
    @media (prefers-reduced-motion: reduce) {
      .trip-planner--ai .ai-related a {
        transition: none;
      }
      .trip-planner--ai .ai-related a:hover {
        transform: none;
      }
    }