/* ═══════════════════════════════════════════════════════════════════════════
   挺对 CMS · default 模板 · 内页组件层

   覆盖：面包屑 / 文章详情（含 GEO 答案框·要点·目录）/ 列表页 / 联系页 /
        关于我们 / 页面构建器区块 / 分页。

   依赖 default.css 的设计令牌；本文件不重复定义颜色，全部走 var()。
   注意：default 是全局兜底主题 —— 其它主题缺少某个视图时会回落到这里的同名视图，
   因此这里的类名（.article-cta / .breadcrumb / .answer-box 等）属于对外契约。
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── 面包屑：SEO 内链与层级语义的可视入口 ────────────────────────────────── */
.breadcrumb {
    display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
    margin: 0 0 34px; color: var(--dim); font-size: 13px;
}
.breadcrumb a { color: var(--muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--brand-2); }
.crumb-sep { color: var(--dim); opacity: .6; margin: 0 2px; }
.crumb-current {
    max-width: 460px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    color: var(--ink-2); font-weight: 600;
}

/* ══ 文章详情页 ═══════════════════════════════════════════════════════════
   .article-page 同时被 cms-core::template-page 的 content-body 块复用，
   所以它必须自带居中与内边距，不能依赖外层再包一层容器。 */
.article-page { max-width: 900px; margin: 0 auto; padding: clamp(40px, 5vw, 68px) 24px clamp(28px, 3vw, 44px); }
.article-head { margin-bottom: 34px; }
.article-head h1 { margin-bottom: 20px; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--dim); font-size: 13.5px; }
.article-meta time { color: var(--muted); }
.article-meta .meta-sep { opacity: .5; }

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; }
.article-tags a, .article-tags-panel a, .share-buttons a {
    padding: 5px 13px; border-radius: 999px;
    border: 1px solid var(--line); background: rgba(148, 163, 184, .06);
    color: var(--muted); font-size: 12.5px;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.article-tags a:hover, .article-tags-panel a:hover, .share-buttons a:hover {
    border-color: var(--brand-line); color: var(--brand-2); background: var(--brand-soft);
}

/* GEO 答案框：正文之外的「核心结论」，便于精选摘要与 AI 直接引用 */
.article-answer {
    margin: 0 0 34px; padding: 26px 30px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(79, 93, 245, .14), rgba(13, 21, 38, .9));
    border: 1px solid var(--brand-line);
}
.article-answer .kicker { margin-bottom: 10px; }
.article-answer p { color: var(--ink-2); font-size: 16.5px; line-height: 1.9; }

/* GEO 核心要点：把正文可被引用的结论前置成清单，AI 抽取命中率高于长段落 */
.key-points {
    margin: 0 0 34px; padding: 26px 30px;
    border-radius: var(--radius-lg); background: var(--panel); border: 1px solid var(--line);
}
.key-points h2 { margin-bottom: 16px; font-size: 17px; letter-spacing: 0; }
.key-points ul { display: grid; gap: 10px; }
.key-points li {
    position: relative; padding-left: 26px;
    color: var(--ink-2); font-size: 15px; line-height: 1.8;
}
.key-points li::before {
    content: ""; position: absolute; left: 6px; top: .72em;
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--brand-2); box-shadow: 0 0 0 3px rgba(59, 130, 246, .16);
}

/* 目录：h2/h3 锚点，服务 AI 片段引用与用户跳转 */
.toc { margin: 0 0 34px; padding: 24px 28px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); }
.toc-title { display: block; margin-bottom: 14px; color: var(--brand-2); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.toc-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 30px; }
.toc-list a {
    display: block; padding: 7px 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.6;
    border-bottom: 1px dashed var(--line-soft);
    transition: color var(--transition), border-color var(--transition);
}
.toc-list a:hover { color: var(--brand-2); border-bottom-color: var(--brand-line); }
.toc-h3 { padding-left: 18px; color: var(--muted); font-size: 14px; }

/* 正文排版：可读性优先，标题层级清晰（同时服务 SEO 语义结构） */
.article-body { color: var(--ink-2); font-size: 17px; line-height: 1.95; }
.article-body > * + * { margin-top: 1.35em; }
.article-body h2 {
    margin-top: 2.2em; padding-top: 1.1em; border-top: 1px solid var(--line-soft);
    font-size: clamp(23px, 2.4vw, 30px); scroll-margin-top: 96px;
}
.article-body h3 { margin-top: 1.8em; font-size: clamp(19px, 1.8vw, 23px); scroll-margin-top: 96px; }
.article-body h4 { margin-top: 1.6em; font-size: 17px; }
.article-body p { color: var(--ink-2); }
.article-body a { color: var(--brand-2); border-bottom: 1px solid var(--brand-line); }
.article-body a:hover { color: #93c5fd; }
.article-body strong { color: var(--ink); }
.article-body ul, .article-body ol { padding-left: 1.4em; display: grid; gap: .55em; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li::marker { color: var(--brand-2); }
.article-body blockquote {
    margin: 1.8em 0; padding: 20px 26px;
    border-left: 3px solid var(--brand-line); border-radius: 0 var(--radius) var(--radius) 0;
    background: var(--panel); color: var(--ink); font-size: 16px;
}
.article-body blockquote p { color: inherit; }
.article-body img { margin: 1.8em 0; border-radius: var(--radius); border: 1px solid var(--line); }
.article-body figure { margin: 1.8em 0; }
.article-body figcaption { margin-top: 10px; color: var(--dim); font-size: 13px; text-align: center; }
.article-body table {
    width: 100%; margin: 1.8em 0; border-collapse: collapse;
    font-size: 14.5px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.article-body th, .article-body td { padding: 12px 16px; border-bottom: 1px solid var(--line-soft); text-align: left; }
.article-body th { background: var(--panel-hi); color: var(--ink); font-weight: 700; }
.article-body tr:last-child td { border-bottom: 0; }
.article-body code {
    padding: 2px 7px; border-radius: 6px; background: rgba(148, 163, 184, .14);
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace; font-size: .92em;
}
.article-body pre {
    margin: 1.8em 0; padding: 20px 22px; border-radius: var(--radius);
    background: #060a13; border: 1px solid var(--line); overflow-x: auto;
}
.article-body pre code { padding: 0; background: none; }
.article-body hr { margin: 2.4em 0; border: 0; border-top: 1px solid var(--line); }

/* 文末：标签 + 分享 */
.article-foot { margin-top: 52px; padding-top: 26px; border-top: 1px solid var(--line); display: grid; gap: 20px; }
.article-tags-panel, .article-share { display: flex; align-items: flex-start; gap: 14px; flex-wrap: wrap; }
.panel-label { flex-shrink: 0; padding-top: 5px; color: var(--brand-2); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.panel-links, .share-buttons { display: flex; flex-wrap: wrap; gap: 8px; }

/* 作者面板：E-E-A-T 信任信号（谁写的、代表谁） */
.article-author-panel {
    display: flex; align-items: flex-start; gap: 20px; max-width: 900px;
    margin: 44px 0 0; padding: 26px; border-radius: var(--radius-lg);
    background: var(--panel); border: 1px solid var(--line);
}
.author-avatar {
    flex-shrink: 0; display: grid; place-items: center; width: 52px; height: 52px;
    border-radius: 50%; background: linear-gradient(135deg, #5563f7, #22b8f0);
    color: #fff; font-size: 20px; font-weight: 800;
}
.author-body strong { display: block; font-size: 15px; }
.author-body p { margin: 8px 0 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* 延伸阅读：同栏目内链，服务权重传递与实体关联 */
.related-articles { max-width: var(--shell); margin: 0 auto; padding: clamp(52px, 6vw, 84px) 24px 0; }
.related-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.related-head h2 { margin: 0; }
.related-more { flex-shrink: 0; color: var(--brand-2); font-size: 14px; font-weight: 700; }
.related-more span { margin-left: 6px; font-size: 18px; vertical-align: middle; }
.related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; padding-top: 28px; }
.related-card {
    display: block; padding: 26px 24px; border-radius: var(--radius);
    background: var(--panel); border: 1px solid var(--line);
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.related-card:hover { transform: translateY(-4px); border-color: var(--brand-line); background: var(--panel-hi); }
.related-card time { color: var(--dim); font-size: 12.5px; }
.related-card h3 { margin: 12px 0 10px; font-size: 18px; line-height: 1.5; }
.related-card p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.75; }

/* ══ 文内 CTA 与通用转化带 ═══════════════════════════════════════════════
   .contact-band / .contact-inner / .contact-actions 是 cms-core::template-page
   的 cta 块契约类名，必须由主题提供样式，否则模板页的转化块会没有视觉。 */
.contact-band {
    position: relative; overflow: hidden; max-width: var(--shell);
    margin: clamp(40px, 5vw, 72px) auto; padding: clamp(38px, 4.5vw, 60px) clamp(28px, 4vw, 56px);
    border-radius: 28px; background: linear-gradient(150deg, #17275a, #0f1b3c 55%, #101c38);
    border: 1px solid var(--brand-line); box-shadow: var(--shadow);
}
.contact-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.contact-band h2 { margin-bottom: 12px; }
.contact-band p { color: var(--ink-2); font-size: 15.5px; line-height: 1.85; max-width: 560px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; flex-shrink: 0; }

/* 文内 CTA：把阅读流量导向转化页（保留 .article-cta 类名，属对外契约） */
.article-cta {
    display: flex; align-items: center; justify-content: space-between; gap: 36px;
    max-width: var(--shell); margin: clamp(64px, 7vw, 100px) auto 0;
    padding: clamp(40px, 5vw, 64px) clamp(28px, 4vw, 60px);
    border-radius: 28px; background: linear-gradient(150deg, #17275a, #0f1b3c 55%, #101c38);
    border: 1px solid var(--brand-line); box-shadow: var(--shadow);
}
.article-cta .kicker { margin-bottom: 12px; }
.cta-copy h2 { margin: 0; }
.cta-copy p { margin: 16px 0 0; color: var(--ink-2); font-size: 15.5px; line-height: 1.85; max-width: 560px; }
.cta-button { flex-shrink: 0; background: var(--ink); color: #0b1220; }
.cta-button:hover { background: #fff; transform: translateY(-2px); }

/* ══ 列表页（产品 / 新闻 / 栏目 / 标签） ═══════════════════════════════════ */
.listing-shell { max-width: var(--shell); margin: 0 auto; padding: clamp(44px, 5vw, 72px) 24px clamp(48px, 5vw, 76px); }
.listing-meta {
    display: flex; flex-wrap: wrap; gap: 20px; padding-bottom: 18px;
    border-bottom: 1px solid var(--line); color: var(--dim); font-size: 13.5px;
}
.listing-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; padding-top: 28px; }
.story-card {
    display: flex; flex-direction: column; overflow: hidden; border-radius: var(--radius-lg);
    background: var(--panel); border: 1px solid var(--line);
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.story-card:hover { transform: translateY(-4px); border-color: var(--brand-line); background: var(--panel-hi); }
.story-card > a { display: flex; flex-direction: column; height: 100%; }
/* 无封面时用渐变占位而不是空白块：视觉一致 + 零请求 */
.story-image { height: 138px; background: linear-gradient(120deg, #16264d, #1d3a75 55%, #12203f); }
.story-image img { width: 100%; height: 100%; object-fit: cover; }
.story-body { display: flex; flex-direction: column; flex: 1; padding: 26px 26px 24px; }
.story-body .kicker { margin-bottom: 12px; }
.story-body h2, .story-body h3 { margin: 0 0 12px; font-size: 19px; line-height: 1.5; }
.story-body > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.story-body time { display: block; margin-top: auto; padding-top: 22px; color: var(--dim); font-size: 12.5px; }

.pagination { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center; padding: 48px 0 8px; }
.pagination-link, .pagination-disabled {
    min-width: 40px; padding: 9px 14px; text-align: center; border-radius: 10px;
    border: 1px solid var(--line); background: var(--panel); color: var(--muted); font-size: 13.5px;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.pagination-link:hover { border-color: var(--brand-line); color: var(--brand-2); }
.pagination-link.is-current { background: linear-gradient(135deg, #5563f7, #3b82f6); border-color: transparent; color: #fff; font-weight: 700; }
.pagination-disabled { opacity: .45; }

/* ══ 联系我们 ═════════════════════════════════════════════════════════════ */
.assure-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; max-width: var(--shell); margin: 0 auto; padding: 0 24px clamp(40px, 4vw, 60px); }
.assure-item { padding: 26px 28px; border-radius: var(--radius-lg); background: var(--panel); border: 1px solid var(--line); }
.assure-item strong { display: block; font-size: 24px; font-weight: 800; letter-spacing: -.02em; }
.assure-item strong em { font-size: .58em; margin-left: 2px; color: var(--brand-2); }
.assure-item span { display: block; margin-top: 6px; color: var(--muted); font-size: 14px; }

.contact-layout {
    display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(36px, 5vw, 72px);
    max-width: var(--shell); margin: 0 auto; padding: clamp(40px, 4vw, 64px) 24px clamp(48px, 5vw, 76px);
    align-items: start;
}
.contact-details h2 { margin-bottom: 20px; }
.contact-details > a {
    display: inline-flex; align-items: center; gap: 9px; margin: 0 18px 12px 0;
    color: var(--brand-2); font-size: 17px; font-weight: 700;
    transition: color var(--transition);
}
.contact-details > a:hover { color: #93c5fd; }
.contact-note { margin: 22px 0 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.contact-points { display: grid; gap: 4px; margin: 26px 0 0; }
.contact-points li { position: relative; padding: 7px 0 7px 26px; color: var(--muted); font-size: 14.5px; line-height: 1.7; }
.contact-points li::before { content: "✓"; position: absolute; left: 0; top: 7px; color: var(--brand-2); font-weight: 800; }

.lead-form { padding: clamp(28px, 4vw, 46px); border-radius: var(--radius-lg); background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); }
.lead-form h2 { margin-bottom: 8px; font-size: clamp(22px, 2.2vw, 27px); }
.lead-form label { display: block; margin-top: 20px; }
.lead-form label > span { display: block; margin-bottom: 8px; color: var(--ink-2); font-size: 13.5px; font-weight: 700; }
.lead-form label b { color: var(--danger); }
.lead-form input:not([type=checkbox]), .lead-form textarea, .lead-form select {
    width: 100%; padding: 13px 15px; border-radius: var(--radius-sm);
    border: 1px solid var(--line-strong); background: rgba(7, 11, 21, .6);
    font: inherit; font-size: 15px; color: var(--ink);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.lead-form input::placeholder, .lead-form textarea::placeholder { color: var(--dim); }
.lead-form input:focus, .lead-form textarea:focus, .lead-form select:focus {
    outline: none; border-color: var(--brand-line); box-shadow: 0 0 0 3px rgba(79, 93, 245, .18);
}
.lead-form textarea { resize: vertical; min-height: 120px; }
.lead-form .consent { display: flex; align-items: flex-start; gap: 9px; margin-top: 22px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.lead-form .consent input { flex-shrink: 0; margin-top: 4px; accent-color: var(--brand); }
.lead-form button { margin-top: 26px; width: 100%; }
.honeypot { position: absolute !important; left: -10000px !important; }
.form-feedback { min-height: 24px; margin: 16px 0 0; font-size: 13.5px; line-height: 1.7; }
.form-feedback.is-loading { color: var(--muted); }
.form-feedback.is-success { color: var(--ok); }
.form-feedback.is-error { color: var(--danger); }

/* ══ 关于我们 ═════════════════════════════════════════════════════════════ */
.about-intro {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(36px, 5vw, 80px); align-items: center;
    max-width: var(--shell); margin: 0 auto; padding: clamp(56px, 6vw, 96px) 24px;
}
.about-media img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: var(--shadow); }
.about-copy h2 { margin-bottom: 22px; }
.about-lead { color: var(--muted); font-size: 16px; line-height: 1.95; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--line); }
.about-stats strong { display: block; font-size: clamp(26px, 2.6vw, 34px); font-weight: 800; line-height: 1.1; letter-spacing: -.02em; }
.about-stats strong em { font-size: .55em; color: var(--brand-2); }
.about-stats span { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; }

.about-story {
    display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: clamp(24px, 4vw, 64px);
    max-width: var(--shell); margin: 0 auto; padding: clamp(28px, 3vw, 48px) 24px clamp(48px, 5vw, 72px);
}
.about-number { color: var(--brand-2); font-size: 15px; font-weight: 800; letter-spacing: .14em; }
.about-story h2 { margin-bottom: 20px; }
.about-story p { color: var(--muted); font-size: 16px; line-height: 1.95; }

.values-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; max-width: var(--shell); margin: 0 auto; padding: 0 24px clamp(48px, 5vw, 76px); }
.values-grid article { padding: 30px 28px; border-radius: var(--radius-lg); background: var(--panel); border: 1px solid var(--line); }
.values-grid strong { color: var(--brand-2); font-size: 13px; font-weight: 800; letter-spacing: .14em; }
.values-grid h3 { margin: 32px 0 10px; }
.values-grid p { color: var(--muted); font-size: 14.5px; line-height: 1.8; }

.milestones { max-width: var(--shell); margin: 0 auto; padding: 0 24px clamp(48px, 5vw, 76px); }
.milestones .section-head { text-align: left; margin-left: 0; }
.milestone-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.milestone-list li { padding: 30px 28px; border-radius: var(--radius-lg); background: var(--panel); border: 1px solid var(--line); border-top: 2px solid var(--brand-2); }
.milestone-year { color: var(--brand-2); font-size: 12.5px; font-weight: 800; letter-spacing: .14em; }
.milestone-list h3 { margin: 14px 0 10px; }
.milestone-list p { color: var(--muted); font-size: 14.5px; line-height: 1.8; }

/* ══ 页面构建器区块 ═══════════════════════════════════════════════════════ */
.section-block { max-width: var(--shell); margin: 0 auto; padding: clamp(40px, 5vw, 76px) 24px; }
.section-intro { max-width: 760px; margin-bottom: 34px; }
.section-intro h2 { margin-bottom: 16px; }

.builder-hero {
    position: relative; overflow: hidden;
    display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
    gap: clamp(28px, 4vw, 56px); align-items: center;
    max-width: var(--shell); margin: 0 auto; padding: clamp(56px, 7vw, 104px) 24px;
}
.builder-hero::before {
    content: ""; position: absolute; left: 50%; top: -200px; width: 820px; height: 480px;
    transform: translateX(-50%); pointer-events: none;
    background: radial-gradient(closest-side, rgba(59, 130, 246, .22), transparent 72%);
}
.builder-hero .hero-copy { position: relative; }
.builder-hero h1 { margin-bottom: 20px; }
.builder-hero .hero-actions { justify-content: flex-start; margin-top: 30px; }
.builder-hero .hero-art { position: relative; }
.builder-hero .hero-art img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--line); }

.builder-image-text { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 60px); align-items: center; }
.builder-image-text.is-right .builder-image-text-media { order: 2; }
.builder-image-text .builder-image-text-media { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--line); }
.builder-image-text .article-body { margin: 0; font-size: 16px; }

.builder-gallery { display: grid; gap: 16px; }
.builder-gallery.is-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.builder-gallery.is-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.builder-gallery.is-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.builder-gallery img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--line); }

.builder-faq { max-width: 880px; display: grid; gap: 12px; }
.builder-faq-item { border-radius: var(--radius); background: var(--panel); border: 1px solid var(--line); overflow: hidden; }
.builder-faq-item[open] { border-color: var(--brand-line); background: var(--panel-hi); }
.builder-faq-item summary {
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
    padding: 22px 26px; cursor: pointer; list-style: none; font-size: 16.5px; font-weight: 700;
}
.builder-faq-item summary::-webkit-details-marker { display: none; }
.builder-faq-item summary::after { content: "+"; color: var(--brand-2); font-size: 22px; font-weight: 400; line-height: 1; }
.builder-faq-item[open] summary::after { content: "–"; }
.builder-faq-item .article-body { margin: 0; padding: 0 26px 24px; font-size: 15px; }

.builder-cta { display: block; }
.builder-cta h2 { margin-bottom: 12px; }

/* 视频块：只在可播放文件时输出 <video>，第三方链接走 empty-state 外链 */
.builder-video video { width: 100%; max-width: 960px; height: auto; border-radius: var(--radius); border: 1px solid var(--line); }
.builder-video-caption { margin-top: 12px; color: var(--dim); font-size: 13.5px; text-align: center; }

/* 构建器区块节奏：整块正文时收窄阅读宽度，避免长行影响可读性 */
.section-block > .article-body:only-child { max-width: 840px; font-size: 17px; line-height: 2; }
.section-block:has(> .article-body) { padding-top: clamp(40px, 5vw, 64px); padding-bottom: clamp(40px, 5vw, 64px); }

/* 构建器里的列表卡：自带内边距，与列表页卡片区分开 */
.section-block .listing-grid { padding-top: 0; }
.section-block .listing-grid > a.story-card { padding: 26px 26px 22px; }
.section-block .listing-grid .story-card h3 { margin: 0 0 12px; }
.section-block .listing-grid .story-card .card-text { margin: 0 0 10px; color: var(--muted); font-size: 13.5px; line-height: 1.75; }
.section-block .listing-grid .story-card .card-date { display: block; color: var(--dim); font-size: 12.5px; }

/* ══ 响应式 ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1080px) {
    .listing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .assure-grid, .milestone-list, .values-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .contact-layout { grid-template-columns: 1fr; }
    .about-intro { grid-template-columns: 1fr; }
    .builder-hero { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
    .related-grid { grid-template-columns: 1fr 1fr; }
    .toc-list { grid-template-columns: 1fr; }
    .builder-image-text { grid-template-columns: 1fr; }
    .builder-image-text.is-right .builder-image-text-media { order: 0; }
    .builder-gallery.is-cols-3, .builder-gallery.is-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .builder-cta { flex-direction: column; align-items: flex-start; }
    .about-story { grid-template-columns: 1fr; gap: 14px; }
}

@media (max-width: 640px) {
    .article-page, .listing-shell, .contact-layout, .about-intro, .about-story,
    .values-grid, .milestones, .assure-grid, .related-articles, .section-block,
    .builder-hero, .contact-band { padding-left: 18px; padding-right: 18px; }
    .listing-grid, .related-grid, .assure-grid, .milestone-list, .values-grid, .about-stats { grid-template-columns: 1fr; }
    .article-cta { flex-direction: column; align-items: flex-start; }
    .article-cta .button { width: 100%; }
    .crumb-current { max-width: 200px; }
    .article-answer, .key-points, .toc { padding: 22px 22px; }
    .article-body { font-size: 16px; }
    .builder-gallery.is-cols-2, .builder-gallery.is-cols-3, .builder-gallery.is-cols-4 { grid-template-columns: 1fr; }
}