{# trade-pro product detail — cms 产品详情设计移植（Task 10b）。
   区块序列对照 D:/project/cms/runtimes/astro-site-runtime/src/pages/[locale]/products/[slug].astro
   （像素基准 dist/hesupipe/en/products/alloy-resin-system-window/）：
   面包屑 → 画廊（主图 + 单行横滚缩略图）+ 标题区（眉题/h1/导语/品牌行/
   CTA 对）→ 正文 Product Details → 参数表 Specifications（fields 键值，
   空则整段隐藏）→ 相关产品（卡片网格）→ 询盘板块（左联系信息 + 右 CTA/
   外部表单）。
   与 cms 的两处结构决策：
   1. Tab 导航平铺：cms 的 Tab 序列承载每产品自定义区块，平台正文是单一
      富文本 + 参数表，仅两个面板不值得引入 JS Tab；cms 无 JS 回退形态
      本就是面板平铺，这里固定为平铺（无 JS 依赖、静态可抓取）。
   2. 画廊交互复用平台 pro.js 既有钩子（.pro-product-media /
      .pro-gallery-thumbs / [data-gallery-image]）：缩略图点击换主图 +
      主图灯箱，零新增 JS；无 JS 时全部图片仍平铺可读。无图回退封面，
      再无则占位渐变（空值不破版）。 #}
<section class="sf-tp-product-hero">
  <div class="wrap">
    <nav class="sf-tp-breadcrumb" aria-label="Breadcrumb" data-reveal>
      <a href="/">Home</a><a href="/products/">Products</a><span class="sf-tp-breadcrumb-current">{{ page.title }}</span>
    </nav>
    <div class="sf-tp-product-grid">
      {# pro.js 经 .pro-gallery-thumbs 的 parentElement 定位 .pro-product-media img——
         缩略图容器必须保持为 .pro-product-media 的兄弟节点（不可外包滚动容器） #}
      <div class="sf-tp-product-gallery" data-reveal>
        {% if gallery %}
        <div class="sf-tp-product-media pro-product-media">
          <img class="sf-tp-product-main-img" src="{{ gallery[0] }}" alt="{{ page.title }}" width="800" height="600" loading="eager" decoding="async">
        </div>
        {% if gallery|length > 1 %}
        <div class="sf-tp-product-thumbs pro-gallery-thumbs" aria-label="Product image gallery">
          {% for photo in gallery %}
          <button type="button" class="sf-tp-product-thumb" data-gallery-image="{{ photo }}" aria-label="View image {{ loop.index }}" aria-pressed="{{ 'true' if loop.first else 'false' }}"><img src="{{ photo }}" alt="{{ page.title }} image {{ loop.index }}" width="150" height="100" loading="lazy" decoding="async"></button>
          {% endfor %}
        </div>
        {% endif %}
        {% else %}
        <div class="sf-tp-product-media pro-product-media">
          <div class="sf-tp-photo-plain" aria-hidden="true"><span>PRODUCT</span></div>
        </div>
        {% endif %}
      </div>
      <div class="sf-tp-product-summary" data-reveal style="--reveal-i: 1">
        <span class="eyebrow">PRODUCT DETAILS / {{ fields.get('brand') or 'CATALOGUE' }}</span>
        <h1 class="sf-tp-product-title">{{ page.title }}</h1>
        <p class="sf-tp-product-lead">{{ page.summary or 'Detailed product information, specifications and export packaging are published on this page.' }}</p>
        {% if fields.get('brand') or fields.get('model') %}
        <p class="sf-tp-product-meta">{% if fields.get('brand') %}<span>Brand · {{ fields.get('brand') }}</span>{% endif %}{% if fields.get('model') %}<span>Model · {{ fields.get('model') }}</span>{% endif %}</p>
        {% endif %}
        <div class="sf-tp-product-actions">
          <a class="sf-tp-btn" href="/contact/">Get a quote {{ icon('arrow-right') }}</a>
          <a class="sf-tp-btn sf-tp-btn--ghost" href="/products/">All products {{ icon('arrow-right') }}</a>
        </div>
      </div>
    </div>
  </div>
</section>
<section class="section sf-tp-product-overview">
  <div class="wrap">
    <span class="eyebrow">OVERVIEW</span>
    <h2 class="sf-tp-panel-title">Product details</h2>
    <div class="sf-tp-product-body" data-reveal>{{ body_copy(content, page) }}</div>
  </div>
</section>
{% if specs %}
<section class="section section--soft sf-tp-product-specs">
  <div class="wrap">
    <span class="eyebrow">SPECIFICATIONS</span>
    <h2 class="sf-tp-panel-title">Specifications</h2>
    <div class="sf-tp-table-scroll" data-reveal>
      <table class="sf-tp-spec-table">
        <tbody>
          {# theme_pro excludes management fields; 'gallery' is a media list, not a spec #}
          {% for row in specs if row.label != 'gallery' %}
          <tr><th scope="row">{{ row.label }}</th><td>{{ row.value }}</td></tr>
          {% endfor %}
        </tbody>
      </table>
    </div>
  </div>
</section>
{% endif %}
{% set tp_related = (groups['product'] + groups['vehicle']) | rejectattr('route', 'equalto', page.route) | list %}
{% if tp_related %}
<section class="section">
  <div class="wrap">
    <div class="sf-tp-section-head" data-reveal>
      <div>
        <span class="eyebrow">RELATED PRODUCTS</span>
        <h2>You may also need</h2>
      </div>
      <a class="sf-tp-more" href="/products/">Browse all products {{ icon('arrow-right', cls='sf-tp-icon--sm') }}</a>
    </div>
    <div class="sf-tp-card-grid">
      {% for tp_item in tp_related[:4] %}
      <article class="sf-tp-card" data-reveal style="--reveal-i: {{ loop.index0 % 4 }}">
        <div class="sf-tp-card-media">{{ cover(tp_item, 'product') }}</div>
        <div class="sf-tp-card-body">
          <h3>{{ tp_item.title }}</h3>
          <p>{{ (tp_item.summary or 'Published specifications available on request.').split('.')[0] }}.</p>
          <a class="sf-tp-more" href="{{ safe_href(tp_item.route) }}">View details {{ icon('arrow-right', cls='sf-tp-icon--sm') }}</a>
        </div>
      </article>
      {% endfor %}
    </div>
  </div>
</section>
{% endif %}
<section class="section section--soft sf-tp-product-quote">
  <div class="wrap sf-tp-quote-grid">
    <div class="sf-tp-quote-info" data-reveal>
      <span class="eyebrow">REQUEST A QUOTE</span>
      <h2>Inquire about this product</h2>
      <p>Send the specifications you need for <strong>{{ page.title }}</strong> and our trade desk replies with pricing, lead time and export packaging within one business day.</p>
      <div class="sf-tp-quote-list">
        {% if footer_email %}
        <div class="sf-tp-quote-item">
          <div class="icon-circle" aria-hidden="true">{{ icon('mail') }}</div>
          <div><strong>Email</strong><p><a href="mailto:{{ footer_email }}">{{ footer_email }}</a></p></div>
        </div>
        {% endif %}
        <div class="sf-tp-quote-item">
          <div class="icon-circle" aria-hidden="true">{{ icon('check') }}</div>
          <div><strong>Direct sourcing desk</strong><p>One contact from inquiry to container loading.</p></div>
        </div>
      </div>
    </div>
    <div class="sf-tp-quote-form" data-reveal style="--reveal-i: 1">
      {% if form_endpoint %}
      <h3>Get a quote for {{ page.title }}</h3>
      <form action="{{ form_endpoint }}" method="POST">
        <label>Name <input name="name" autocomplete="name" required maxlength="100"></label>
        <label>Email <input name="email" type="email" autocomplete="email" required maxlength="180"></label>
        <label>Message <textarea name="message" required minlength="6" maxlength="5000" placeholder="I would like a quotation for {{ page.title }}..."></textarea></label>
        <input name="website" tabindex="-1" autocomplete="off" class="pro-honeypot" aria-hidden="true">
        <button type="submit" class="sf-tp-btn">Submit enquiry {{ icon('arrow-right') }}</button>
        <p class="sf-tp-quote-note">Submissions are handled by the external form service configured by the site administrator.</p>
      </form>
      {% else %}
      <h3>Get a quote for {{ page.title }}</h3>
      <p>Share your specifications and target market through the contact page; our trade desk replies within one business day.</p>
      <a class="sf-tp-btn" href="/contact/">Contact us {{ icon('arrow-right') }}</a>
      {% endif %}
    </div>
  </div>
</section>