:root {
        --amber: #f5a623;
        --orange: #e8880a;
        --brown: #3d1f0a;
        --cream: #fff8ec;
        --milk: #fffdf7;
        --paper: #f7efe1;
        --muted: #816b58;
        --line: rgba(61, 31, 10, 0.18);
        --soft-line: rgba(61, 31, 10, 0.1);
        --success: #48623d;
        --danger: #8b3f2f;
        --shadow: 0 18px 60px rgba(61, 31, 10, 0.1);
        --max: 1180px;
        --serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", STSong, serif;
        --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      }

      * { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      body {
        margin: 0;
        background: var(--paper);
        color: var(--brown);
        font-family: var(--sans);
        font-size: 16px;
        line-height: 1.72;
        transition: background 220ms ease, color 220ms ease;
      }
      button, input, textarea, select { font: inherit; }
      button, a, label { -webkit-tap-highlight-color: transparent; }
      button:focus-visible,
      a:focus-visible,
      input:focus-visible,
      textarea:focus-visible,
      select:focus-visible {
        outline: 3px solid rgba(245, 166, 35, 0.5);
        outline-offset: 3px;
      }
      a { color: inherit; }
      button { color: inherit; }
      [hidden] { display: none !important; }
      h1, h2, h3, p { margin-top: 0; }
      h1, h2, h3, .brand-word {
        font-family: var(--serif);
        font-weight: 800;
      }
      h1 { letter-spacing: -0.045em; }
      h2, h3 { letter-spacing: -0.025em; }

      .link-button {
        padding: 0;
        border: 0;
        border-bottom: 1px solid currentColor;
        background: transparent;
        cursor: pointer;
        font-size: 13px;
      }

      .site-header {
        width: min(calc(100% - 48px), var(--max));
        min-height: 92px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 26px;
      }
      .site-brand {
        width: 128px;
        border: 0;
        background: transparent;
        cursor: pointer;
        text-align: left;
      }
      .brand-word {
        display: block;
        width: 100%;
        font-size: 26px;
        letter-spacing: 0;
        line-height: 1.1;
        text-align: justify;
        text-align-last: justify;
        white-space: nowrap;
      }
      .brand-en {
        display: block;
        width: 100%;
        margin-top: 2px;
        color: var(--muted);
        font-size: 10px;
        letter-spacing: 0.17em;
        text-align: justify;
        text-align-last: justify;
        text-transform: uppercase;
        white-space: nowrap;
      }
      .site-nav { display: flex; align-items: center; gap: 28px; }
      .site-nav button {
        padding: 4px 0;
        border: 0;
        border-bottom: 1px solid transparent;
        background: transparent;
        cursor: pointer;
        color: var(--muted);
        font-size: 14px;
      }
      .site-nav button:hover,
      .site-nav button[aria-current="page"] {
        border-bottom-color: currentColor;
        color: var(--brown);
      }

      .view { min-height: calc(100vh - 56px); }
      .home-hero {
        width: min(calc(100% - 48px), var(--max));
        margin: 36px auto 0;
        padding: 64px;
        border: 1px solid var(--line);
        background: linear-gradient(
          120deg,
          #fffaf0 0 62%,
          rgba(245, 166, 35, 0.2) 62% 100%
        );
        box-shadow: var(--shadow);
      }
      .hero-layout {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 250px;
        align-items: end;
        gap: 76px;
      }
      .eyebrow {
        margin-bottom: 18px;
        color: var(--orange);
        font-size: 12px;
        font-weight: 800;
        letter-spacing: 0.18em;
        text-transform: uppercase;
      }
      .home-hero h1 {
        max-width: 860px;
        margin-bottom: 26px;
        font-size: clamp(44px, 6vw, 68px);
        line-height: 1.13;
      }
      .hero-copy {
        max-width: 760px;
        color: #684b34;
        font-size: clamp(16px, 1.7vw, 18px);
      }
      .hero-copy p { margin-bottom: 14px; }
      .hero-copy p:last-child { margin-bottom: 0; }
      .keep-together { white-space: nowrap; }
      .hero-mark {
        position: relative;
        min-height: 220px;
        display: grid;
        place-items: center;
      }
      .hero-mark::before,
      .hero-mark::after {
        position: absolute;
        content: "";
      }
      .hero-mark::before {
        width: 210px;
        height: 210px;
        border: 1px solid var(--brown);
        border-radius: 8px;
        transform: rotate(3deg);
      }
      .hero-mark::after {
        width: 156px;
        height: 156px;
        border-radius: 4px;
        background: var(--amber);
        opacity: 0.82;
        transform: rotate(-5deg);
      }
      .hero-mark span {
        position: relative;
        z-index: 1;
        max-width: 130px;
        font-family: var(--serif);
        font-size: 20px;
        font-weight: 800;
        line-height: 1.45;
        text-align: center;
      }

      .paths-section {
        width: min(calc(100% - 48px), var(--max));
        margin: 0 auto;
        padding: 44px 0 104px;
      }
      .path-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
      }
      .path-card {
        min-height: 492px;
        padding: 34px 30px 30px;
        display: flex;
        flex-direction: column;
        border-right: 1px solid var(--line);
        transition: background 180ms ease, transform 180ms ease;
      }
      .path-card:last-child { border-right: 0; }
      .path-card:hover { background: rgba(255, 253, 247, 0.46); }
      .path-index {
        margin-bottom: 48px;
        color: var(--orange);
        font-size: 12px;
        font-weight: 800;
        letter-spacing: 0.15em;
      }
      .path-card h3 {
        margin-bottom: 16px;
        font-size: clamp(26px, 2.8vw, 35px);
        line-height: 1.32;
      }
      .path-card > p { color: #6a533f; }
      .path-outcome {
        margin: auto 0 24px;
        padding-top: 22px;
        border-top: 1px solid var(--soft-line);
        color: var(--muted);
        font-size: 14px;
      }
      .path-outcome strong { display: block; color: var(--brown); }
      .primary-button,
      .secondary-button {
        min-height: 52px;
        padding: 13px 18px;
        border: 1px solid var(--brown);
        cursor: pointer;
        text-align: left;
      }
      .primary-button {
        background: var(--brown);
        color: var(--milk);
        font-weight: 700;
      }
      .primary-button:hover { background: #552a0c; }
      .primary-button::after,
      .secondary-button.arrow::after { float: right; content: "→"; }
      .secondary-button { background: transparent; color: var(--brown); }
      .secondary-button:hover { background: rgba(61, 31, 10, 0.05); }
      .button-row { display: flex; flex-wrap: wrap; gap: 12px; }
      .button-row .primary-button,
      .button-row .secondary-button { min-width: 170px; text-align: center; }

      .site-footer { background: var(--brown); color: var(--milk); }
      .footer-inner {
        width: min(calc(100% - 48px), var(--max));
        margin: 0 auto;
        padding: 76px 0 62px;
        display: grid;
        grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
        gap: 96px;
      }
      .footer-brand h2 {
        margin-bottom: 22px;
        font-size: clamp(34px, 4vw, 50px);
      }
      .footer-brand { max-width: 540px; }
      .footer-brand p { margin-bottom: 8px; color: #f4dcc1; }
      .footer-links {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 44px;
      }
      .footer-link-group h3 {
        margin-bottom: 16px;
        color: var(--amber);
        font-size: 23px;
        letter-spacing: 0;
      }
      .footer-link-group h3 span {
        display: block;
        margin-bottom: 3px;
        color: #d9b993;
        font-family: var(--sans);
        font-size: 11px;
        font-weight: 500;
        letter-spacing: 0.12em;
      }
      .footer-link-group ul { margin: 0; padding: 0; list-style: none; }
      .footer-link-group li { margin-bottom: 10px; }
      .footer-link-group a {
        display: inline-block;
        padding: 2px 0;
        color: #fff8ea;
        text-decoration-color: transparent;
        text-underline-offset: 4px;
      }
      .footer-link-group a:hover,
      .footer-link-group a:focus-visible { text-decoration-color: currentColor; }
      .footer-meta {
        width: min(calc(100% - 48px), var(--max));
        margin: 0 auto;
        padding: 22px 0 28px;
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: 22px;
        border-top: 1px solid rgba(255, 255, 255, 0.22);
        color: #d9b993;
        font-size: 12px;
      }
      .route-shell {
        width: min(calc(100% - 48px), 1040px);
        margin: 0 auto;
        padding: 44px 0 110px;
      }
      .back-button {
        margin-bottom: 48px;
        padding: 0;
        border: 0;
        border-bottom: 1px solid currentColor;
        background: transparent;
        color: var(--muted);
        cursor: pointer;
        font-size: 14px;
      }
      .route-intro { max-width: 840px; margin-bottom: 64px; }
      .route-intro h1 {
        margin-bottom: 24px;
        font-size: clamp(42px, 6vw, 70px);
        line-height: 1.16;
      }
      .route-intro > p:not(.eyebrow) {
        max-width: 760px;
        color: #684b34;
        font-size: 18px;
      }
      .prototype-note,
      .privacy-note,
      .crisis-note {
        padding: 22px 24px;
        border-left: 4px solid var(--amber);
        background: rgba(255, 253, 247, 0.62);
        color: #6f5843;
        font-size: 14px;
      }
      .prototype-note strong,
      .privacy-note strong,
      .crisis-note strong { color: var(--brown); }

      .topic-prompt {
        margin: 0;
        color: var(--brown);
        font-family: var(--serif);
        font-size: 24px;
        font-weight: 800;
      }

      .question-map {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 12px;
        margin-top: 28px;
      }
      .question-chip {
        min-height: 238px;
        padding: 22px;
        display: flex;
        flex-direction: column;
        border: 1px solid var(--line);
        background: var(--paper);
        cursor: pointer;
        text-align: left;
        transition: transform 170ms ease, background 170ms ease, border-color 170ms ease;
      }
      .question-chip:hover,
      .question-chip:focus-visible {
        background: var(--milk);
        transform: translateY(-2px);
      }
      .question-chip[aria-pressed="true"] {
        border-color: var(--orange);
      }
      .topic-index {
        display: block;
        margin-bottom: 14px;
        color: var(--orange);
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.12em;
      }
      .question-chip strong {
        display: block;
        font-family: var(--serif);
        font-size: 19px;
        line-height: 1.45;
      }
      .question-chip p {
        margin: 13px 0 0;
        color: var(--muted);
        font-size: 13px;
        line-height: 1.58;
      }
      .topic-open {
        margin-top: auto;
        padding-top: 18px;
        color: #6f5843;
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 0.02em;
      }
      .topic-open::after { content: "查看相关内容 →"; }
      .question-chip:hover .topic-open,
      .question-chip:focus-visible .topic-open,
      .question-chip[aria-pressed="true"] .topic-open { color: var(--orange); }
      .question-chip[aria-pressed="true"] .topic-open::after { content: "收起相关内容 ↑"; }
      .question-detail {
        margin-top: 32px;
        padding: 34px;
        border: 1px solid var(--line);
        background: var(--milk);
        box-shadow: var(--shadow);
      }
      .question-detail h2 { margin-bottom: 8px; font-size: 32px; }
      .question-detail > p { color: var(--muted); }
      .question-detail-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
      }
      .content-cards {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 12px;
        margin: 26px 0 22px;
      }
      .content-card {
        min-height: 300px;
        padding: 20px;
        display: flex;
        flex-direction: column;
        border: 1px solid var(--soft-line);
        background: var(--cream);
      }
      .content-card h3 { margin: 0 0 12px; font-size: 20px; line-height: 1.45; }
      .content-description { color: var(--muted); font-size: 13px; }
      .content-meta {
        margin-top: auto;
        padding-top: 18px;
        display: flex;
        flex-wrap: wrap;
        gap: 6px 14px;
        border-top: 1px solid var(--soft-line);
        color: #6f5843;
        font-size: 12px;
      }
      .content-links {
        padding-top: 15px;
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
      }
      .content-links a {
        color: var(--brown);
        font-size: 13px;
        font-weight: 700;
        text-underline-offset: 4px;
      }
      .topic-modal {
        width: min(calc(100% - 48px), 1040px);
        max-height: min(86vh, 880px);
        padding: 0;
        overflow: hidden;
        border: 1px solid var(--line);
        background: var(--milk);
        color: var(--brown);
        box-shadow: 0 30px 100px rgba(61, 31, 10, 0.34);
      }
      .topic-modal::backdrop { background: rgba(33, 20, 10, 0.58); }
      .topic-modal-head {
        padding: 28px 34px 20px;
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 30px;
        border-bottom: 1px solid var(--soft-line);
      }
      .topic-modal-head h2 { margin-bottom: 4px; font-size: 30px; }
      .topic-modal-head p { margin-bottom: 0; color: var(--muted); font-size: 13px; }
      .modal-close {
        flex: 0 0 auto;
        width: 40px;
        height: 40px;
        border: 1px solid var(--line);
        border-radius: 50%;
        background: transparent;
        cursor: pointer;
        font-size: 22px;
        line-height: 1;
      }
      .topic-modal-scroll {
        max-height: calc(min(86vh, 880px) - 112px);
        padding: 0 34px 34px;
        overflow-y: auto;
        overscroll-behavior: contain;
      }
      .topic-modal .content-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .secondary-section {
        margin-top: 84px;
        padding-top: 52px;
        border-top: 1px solid var(--line);
      }
      .secondary-section h2 { font-size: 36px; }
      .quick-questions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
        margin-top: 28px;
      }
      .featured-question {
        min-height: 160px;
        padding: 22px 24px;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: space-between;
        gap: 18px;
        border: 1px solid var(--line);
        border-left: 4px solid var(--amber);
        background: var(--paper);
        color: var(--brown);
        cursor: pointer;
        text-align: left;
        transition: transform 170ms ease, background 170ms ease, box-shadow 170ms ease;
      }
      .featured-question:hover,
      .featured-question:focus-visible {
        background: var(--milk);
        box-shadow: var(--shadow);
        transform: translateY(-2px);
      }
      .featured-question-index {
        color: var(--orange);
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.12em;
      }
      .featured-question strong {
        font-family: var(--serif);
        font-size: 20px;
        line-height: 1.5;
      }
      .featured-question-open {
        color: var(--muted);
        font-size: 12px;
      }
      .featured-modal .content-cards { grid-template-columns: 1fr; }
      .featured-modal .content-card { min-height: 0; }

      .ways-section {
        margin-top: 84px;
        padding-top: 52px;
        border-top: 1px solid var(--line);
      }
      .ways-section h2 { margin-bottom: 10px; font-size: 36px; }
      .ways-section > p {
        max-width: none;
        color: var(--muted);
        white-space: nowrap;
      }
      .ways-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1px;
        margin-top: 28px;
        border: 1px solid var(--line);
        background: var(--line);
      }
      .way-card {
        min-height: 240px;
        padding: 28px;
        display: flex;
        flex-direction: column;
        background: var(--paper);
      }
      .way-card-body {
        flex: 1;
        display: flex;
        flex-direction: column;
      }
      .way-index {
        color: var(--orange);
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.14em;
      }
      .way-card h3 { margin: 22px 0 10px; font-size: 26px; }
      .way-card p { color: var(--muted); }
      .way-actions {
        margin-top: auto;
        padding-top: 16px;
        display: flex;
        flex-wrap: wrap;
        gap: 18px;
      }
      .way-actions a {
        padding: 0;
        border: 0;
        border-bottom: 1px solid currentColor;
        background: transparent;
        cursor: pointer;
        font-size: 13px;
        color: inherit;
        text-decoration: none;
      }

      .optional-feedback {
        margin-top: 84px;
        padding: 52px 0 20px;
        border-top: 1px solid var(--line);
      }
      .optional-feedback > h2 { margin-bottom: 10px; font-size: 36px; }
      .optional-feedback > p {
        max-width: none;
        color: var(--muted);
        white-space: nowrap;
      }
      .feedback-options {
        display: grid;
        gap: 12px;
        margin-top: 28px;
      }
      .feedback-panel {
        border: 1px solid var(--line);
        background: var(--paper);
      }
      .feedback-panel summary {
        padding: 20px 22px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        cursor: pointer;
        font-family: var(--serif);
        font-size: 20px;
        font-weight: 800;
        list-style: none;
      }
      .feedback-panel summary::-webkit-details-marker { display: none; }
      .feedback-panel summary::after {
        color: var(--orange);
        content: "＋";
        font-family: var(--sans);
        font-size: 20px;
      }
      .feedback-panel[open] summary::after { content: "－"; }
      .feedback-body {
        padding: 0 22px 24px;
        border-top: 1px solid var(--soft-line);
      }
      .feedback-note {
        margin: 16px 0 20px;
        color: var(--muted);
        font-size: 13px;
      }
      .feedback-field {
        margin-top: 20px;
      }
      .feedback-field label {
        display: block;
        margin-bottom: 9px;
        font-weight: 700;
        line-height: 1.55;
      }
      .feedback-field input,
      .feedback-field textarea,
      .feedback-field select {
        width: 100%;
        padding: 13px 14px;
        border: 1px solid var(--line);
        background: var(--cream);
        color: var(--brown);
      }
      .feedback-field textarea { min-height: 110px; resize: vertical; }
      .feedback-body .secondary-button { margin-top: 20px; }

      .snapshot-workspace {
        display: grid;
        grid-template-columns: 210px minmax(0, 1fr);
        gap: 56px;
        align-items: start;
      }
      .step-list {
        position: sticky;
        top: 86px;
        margin: 0;
        padding: 0;
        list-style: none;
      }
      .step-list li {
        padding: 11px 0;
        border-bottom: 1px solid var(--soft-line);
        color: var(--muted);
        font-size: 13px;
      }
      .step-list li.is-active { color: var(--brown); font-weight: 800; }
      .step-list li.is-done::before { color: var(--success); content: "✓ "; }
      .question-panel {
        min-height: 520px;
        padding: 42px;
        border: 1px solid var(--line);
        background: var(--milk);
        box-shadow: var(--shadow);
      }
      .progress-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 54px;
        color: var(--muted);
        font-size: 13px;
      }
      .progress-track {
        width: 180px;
        height: 4px;
        overflow: hidden;
        background: rgba(61, 31, 10, 0.1);
      }
      .progress-track i {
        display: block;
        width: 14.28%;
        height: 100%;
        background: var(--orange);
        transition: width 200ms ease;
      }
      .question-panel h2 {
        max-width: 690px;
        margin-bottom: 12px;
        font-size: clamp(30px, 4vw, 46px);
        line-height: 1.3;
      }
      .question-hint { min-height: 28px; color: var(--muted); }
      .question-panel textarea,
      .form-field textarea,
      .form-field input[type="text"],
      .form-field input[type="email"],
      .form-field input[type="file"] {
        width: 100%;
        border: 1px solid var(--line);
        background: var(--cream);
        color: var(--brown);
      }
      .question-panel textarea {
        min-height: 180px;
        margin-top: 22px;
        padding: 18px;
        resize: vertical;
        line-height: 1.75;
      }
      .question-actions {
        margin-top: 28px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
      }
      .transition-note {
        min-height: 28px;
        margin-top: 18px;
        color: var(--danger);
        font-size: 13px;
        font-weight: 700;
      }
      .transition-note.is-error { color: var(--danger); }
      .snapshot-question-content[hidden],
      .snapshot-transition[hidden],
      .snapshot-organizing[hidden] { display: none; }
      .snapshot-transition,
      .snapshot-organizing {
        min-height: 432px;
        padding: 36px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
      }
      .transition-index {
        margin-bottom: 26px;
        color: var(--orange);
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.16em;
      }
      .snapshot-transition-text {
        max-width: 650px;
        margin: 0;
        font-family: var(--serif);
        font-size: clamp(21px, 2.3vw, 29px);
        font-weight: 800;
        line-height: 1.7;
        white-space: pre-line;
      }
      .snapshot-transition .primary-button { margin-top: 36px; }
      .snapshot-organizing p {
        margin: 30px 0 8px;
        font-family: var(--serif);
        font-size: clamp(26px, 3.3vw, 38px);
        font-weight: 800;
      }
      .snapshot-organizing small { color: var(--muted); }
      .organizing-mark {
        width: 46px;
        height: 46px;
        border: 1px solid var(--orange);
        transform: rotate(45deg);
        animation: organize-pulse 1.5s ease-in-out infinite;
      }
      @keyframes organize-pulse {
        0%, 100% { transform: rotate(45deg) scale(0.82); opacity: 0.45; }
        50% { transform: rotate(45deg) scale(1); opacity: 1; }
      }
      .snapshot-result { margin-top: 52px; }
      .snapshot-card {
        position: relative;
        overflow: hidden;
        padding: 68px 64px 60px;
        border: 1px solid var(--line);
        outline: 1px solid rgba(73, 41, 17, 0.15);
        outline-offset: -14px;
        background:
          radial-gradient(circle at 90% 5%, rgba(245, 153, 30, 0.13), transparent 28%),
          radial-gradient(circle at 8% 92%, rgba(246, 184, 75, 0.1), transparent 32%),
          var(--milk);
        box-shadow: var(--shadow);
      }
      .snapshot-card::before {
        position: absolute;
        top: 27px;
        left: 50%;
        width: 72px;
        height: 1px;
        background: var(--orange);
        content: "";
        transform: translateX(-50%);
      }
      .snapshot-card-header {
        padding-bottom: 34px;
        border-bottom: 1px solid var(--line);
        text-align: center;
      }
      .snapshot-mark {
        display: inline-block;
        width: 20px;
        height: 20px;
        margin: 3px 0 22px;
        border: 1px solid var(--orange);
        transform: rotate(45deg);
      }
      .snapshot-card h2 { margin-bottom: 7px; font-size: clamp(38px, 5vw, 56px); }
      .snapshot-date { margin-bottom: 0; color: var(--muted); }
      .snapshot-sections {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0;
        margin: 38px 0 32px;
      }
      .snapshot-item {
        display: grid;
        grid-template-columns: minmax(150px, 0.32fr) minmax(0, 1fr);
        gap: 28px;
        padding: 21px 0;
        border-top: 1px solid var(--line);
      }
      .snapshot-item:first-child { border-top: 0; }
      .snapshot-item strong { display: block; margin-bottom: 6px; color: var(--orange); }
      .snapshot-item p { margin-bottom: 0; white-space: pre-wrap; }
      .snapshot-footer {
        padding-top: 26px;
        border-top: 1px solid var(--line);
        color: var(--muted);
        text-align: center;
      }
      .snapshot-footer span { display: block; }
      .save-choices { margin-top: 38px; }
      .save-choices h3 { font-size: 26px; }
      .choice-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 12px;
        margin: 20px 0;
      }
      .choice-option { display: grid; }
      .choice-card {
        min-height: 0;
        padding: 19px 20px;
        border: 1px solid var(--line);
        background: rgba(255, 253, 247, 0.5);
        cursor: pointer;
      }
      .choice-card:has(input:checked) { border-color: var(--orange); background: var(--milk); }
      .choice-card input { margin-right: 8px; accent-color: var(--orange); }
      .choice-card strong { font-family: var(--serif); font-size: 18px; }
      .choice-card p { margin: 10px 0 0 24px; color: var(--muted); font-size: 13px; }
      .save-panel {
        padding: 24px;
        border: 1px solid var(--line);
        border-top: 0;
        background: var(--milk);
      }
      .save-panel[hidden] { display: none; }
      .inline-form { display: flex; flex-wrap: wrap; gap: 12px; }
      .inline-form input {
        min-width: 260px;
        flex: 1;
        padding: 13px 14px;
        border: 1px solid var(--line);
        background: var(--cream);
      }
      .email-error {
        margin: 10px 0 0;
        color: var(--danger);
        font-size: 13px;
      }
      .snapshot-next-path {
        margin-top: 56px;
        padding: 34px;
        border: 1px solid var(--line);
        background: rgba(255, 253, 247, 0.58);
      }
      .snapshot-next-path h3 { margin: 8px 0 10px; font-size: 28px; }
      .snapshot-next-path .secondary-button { margin-top: 10px; }
      .snapshot-next-path small { display: block; margin-top: 14px; color: var(--muted); }

      @media (prefers-reduced-motion: reduce) {
        .organizing-mark { animation: none; }
      }

      .dialogue-summary {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 12px;
        margin: 32px 0 48px;
        align-items: stretch;
      }
      .summary-item {
        padding: 20px;
        border-top: 3px solid var(--amber);
        background: rgba(255, 253, 247, 0.55);
      }
      .summary-item strong { display: block; margin-bottom: 8px; font-family: var(--serif); }
      .summary-item p { margin: 0; color: var(--muted); font-size: 14px; }
      .trial-note {
        margin-bottom: 54px;
        padding: 24px;
        background: var(--brown);
        color: var(--milk);
      }
      .trial-note strong { color: var(--amber); }
      .dialogue-form-title { margin: 0 0 30px; font-size: 32px; }
      .dialogue-form { display: grid; gap: 28px; }
      .form-field { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
      .form-field > label,
      .form-field > legend {
        display: block;
        margin-bottom: 12px;
        font-family: var(--serif);
        font-size: 22px;
        font-weight: 800;
        line-height: 1.45;
      }
      .form-field textarea { min-height: 120px; padding: 16px; resize: vertical; }
      .form-field input[type="text"],
      .form-field input[type="email"],
      .form-field input[type="file"] { padding: 13px 14px; }
      fieldset.form-field { margin: 0; padding-inline: 0; border: 0; border-bottom: 1px solid var(--line); }
      .radio-stack { display: grid; gap: 12px; }
      .radio-row {
        padding: 15px 16px;
        border: 1px solid var(--line);
        background: rgba(255, 253, 247, 0.42);
        cursor: pointer;
      }
      .radio-row input { margin-right: 10px; accent-color: var(--orange); }
      .radio-note {
        display: block;
        margin: 7px 0 0 24px;
        color: var(--muted);
        font-size: 12px;
      }
      .conditional-upload {
        margin-top: 18px;
        padding: 20px;
        border: 1px dashed var(--orange);
        background: rgba(245, 166, 35, 0.08);
      }
      .conditional-upload p { color: var(--muted); font-size: 13px; }
      .application-review-note {
        padding: 20px 22px;
        border-left: 3px solid var(--amber);
        background: rgba(245, 166, 35, 0.08);
        line-height: 1.75;
      }
      .crisis-note { margin: 12px 0 4px; border-left-color: var(--danger); }
      .form-success {
        padding: 30px;
        border: 1px solid rgba(72, 98, 61, 0.35);
        background: rgba(72, 98, 61, 0.08);
      }

      .toast {
        position: fixed;
        right: 22px;
        bottom: 22px;
        z-index: 80;
        max-width: min(420px, calc(100% - 44px));
        padding: 14px 18px;
        background: var(--brown);
        color: var(--milk);
        box-shadow: var(--shadow);
        font-size: 14px;
      }

      @media (max-width: 900px) {
        .site-nav { display: none; }
        .hero-layout { grid-template-columns: 1fr; gap: 34px; }
        .hero-mark { min-height: 210px; }
        .hero-mark::before { width: 198px; height: 198px; }
        .hero-mark::after { width: 126px; height: 126px; }
        .path-grid { grid-template-columns: 1fr; }
        .path-card { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
        .path-card:last-child { border-bottom: 0; }
        .path-index { margin-bottom: 22px; }
        .path-outcome { margin-top: 22px; }
        .footer-inner { grid-template-columns: 1fr; gap: 42px; }
        .question-map, .content-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        .snapshot-workspace { grid-template-columns: 1fr; gap: 24px; }
        .step-list { position: static; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
        .step-list li { border: 1px solid var(--soft-line); padding: 8px; }
        .choice-grid { grid-template-columns: 1fr; }
        .dialogue-summary {
          grid-template-columns: repeat(3, minmax(280px, 1fr));
          overflow-x: auto;
          padding-bottom: 12px;
          scroll-snap-type: x proximity;
        }
        .summary-item { scroll-snap-align: start; }
        .ways-section > p { white-space: normal; }
        .optional-feedback > p { white-space: normal; }
        .home-hero { padding: 42px; }
      }

      @media (max-width: 620px) {
        body { font-size: 15px; }
        .site-header, .home-hero, .paths-section, .footer-inner, .footer-meta, .route-shell {
          width: min(calc(100% - 32px), var(--max));
        }
        .home-hero { margin-top: 18px; padding: 28px 22px; }
        .home-hero h1 { font-size: 44px; }
        .hero-mark { min-height: 170px; }
        .hero-mark::before { width: 164px; height: 164px; }
        .hero-mark::after { width: 104px; height: 104px; }
        .footer-links { grid-template-columns: 1fr; gap: 32px; }
        .footer-meta { align-items: flex-start; flex-direction: column; }
        .path-card { padding: 28px 22px; }
        .route-shell { padding-top: 28px; }
        .route-intro { margin-bottom: 44px; }
        .route-intro h1 { font-size: 42px; }
        .question-map, .content-cards, .quick-questions, .ways-grid { grid-template-columns: 1fr; }
        .ways-section > p { white-space: normal; }
        .way-card { min-height: 0; }
        .topic-modal { width: calc(100% - 24px); max-height: 90vh; }
        .topic-modal-head { padding: 22px 20px 16px; }
        .topic-modal-scroll { max-height: calc(90vh - 100px); padding: 0 20px 24px; }
        .topic-modal .content-cards { grid-template-columns: 1fr; }
        .question-detail, .question-panel, .snapshot-card { padding: 26px 22px; }
        .step-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        .progress-row { align-items: start; flex-direction: column; }
        .progress-track { width: 100%; }
        .question-actions { align-items: stretch; flex-direction: column-reverse; }
        .question-actions button { width: 100%; text-align: center; }
        .snapshot-sections { grid-template-columns: 1fr; }
        .snapshot-item { grid-template-columns: 1fr; gap: 8px; }
        .snapshot-transition, .snapshot-organizing { min-height: 380px; padding: 20px 4px; }
        .inline-form { flex-direction: column; }
        .inline-form input { min-width: 0; width: 100%; }
        .button-row { flex-direction: column; }
        .button-row button { width: 100%; }
      }

      @media print {
        .site-header, .question-actions, .save-choices, .snapshot-next-path,
        .shared-feedback-slot, .back-button, .route-intro, .step-list, .privacy-note { display: none !important; }
        body { background: #fff; }
        .view:not([data-view="aware"]) { display: none !important; }
        .route-shell { width: 100%; padding: 0; }
        .question-panel { display: none; }
        .snapshot-result { margin: 0; }
        .snapshot-card { border: 0; box-shadow: none; }
      }

/* ── 以下为原型之外新增：内容快照加载失败时的降级提示 ── */
.content-load-error {
  padding: 32px 24px;
  text-align: center;
  color: var(--muted, #6b6058);
  font-size: 15px;
}