/* ============================================================================
   theme-city · 自包含基础样式快照
   ----------------------------------------------------------------------------
   本文件为 default 模板 default.css + default-overrides.css 的快照副本（结构样式、
   组件样式与深色模式），置于本主题目录内，保证模板独立：theme-city 运行时不再跨模板
   引用 default 模板的任何文件。
   维护约定：
   - 快照随本主题独立演进，无需与 default 模板保持同步；
   - 主题差异化样式写在 city.css（在本文件之后加载），同名组件必须完整覆写基础布局属性；
   - 修改后必须同步复制到 public/templates/theme-city/city-base.css。
   ========================================================================== */
:root{--ink:#0b1730;--muted:#52627a;--line:#dbe4f0;--blue:#1769e0;--blue-dark:#0a2a66;--cyan:#34c6e8;--paper:#f8fbff;--white:#fff;--shadow:0 20px 60px rgba(10,42,102,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Avenir Next","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}.site-header{height:82px;padding:0 max(24px,calc((100vw - 1240px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(248,251,255,.96);border-bottom:1px solid var(--line);position:relative;z-index:5}.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:750;letter-spacing:.02em}.brand-mark{display:grid;place-items:center;width:32px;height:32px;background:var(--blue);color:#fff;font-weight:800;transform:skew(-12deg)}.site-header nav{display:flex;align-items:center;gap:30px;font-size:14px;color:var(--muted)}.site-header nav a{transition:color .2s ease}.site-header nav a:hover{color:var(--blue)}.nav-cta{padding:10px 16px;border:1px solid var(--blue);color:var(--blue)!important}.hero-shell{min-height:calc(100vh - 82px);display:grid;grid-template-columns:minmax(0,1fr) minmax(420px,1.1fr);background:var(--blue-dark);color:#fff}.hero-copy{align-self:center;padding:clamp(56px,8vw,120px) clamp(32px,4vw,72px) clamp(56px,8vw,120px) max(32px,calc((100vw - 1240px)/2))}.kicker{margin:0 0 18px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero-shell .kicker{color:var(--cyan)}h1,h2,h3,p{max-width:100%}.hero-copy h1{margin:0;font-size:clamp(40px,3.6vw,60px);line-height:1.14;letter-spacing:-.02em;text-wrap:balance}.hero-lead{max-width:520px;margin:26px 0 0;color:#d9e7ff;font-size:17px;line-height:1.85}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:42px}.button{display:inline-flex;align-items:center;gap:18px;padding:15px 20px;border:1px solid transparent;font-weight:700;font-size:14px}.button span{font-size:20px;line-height:0}.button-primary{background:var(--blue);color:#fff}.button-light{background:#fff;color:var(--blue-dark)}.text-link{font-size:14px;font-weight:700}.text-link span{margin-left:8px;color:var(--cyan);font-size:20px}.hero-art{position:relative;min-height:480px;overflow:hidden}.hero-art:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--blue-dark) 0%,rgba(10,42,102,.05) 45%,rgba(10,42,102,.15) 100%)}.hero-art img{width:100%;height:100%;min-height:480px;object-fit:cover;display:block;mix-blend-mode:screen;opacity:.82}.hero-index{position:absolute;right:28px;bottom:24px;z-index:1;color:#d9e7ff;font-size:12px;letter-spacing:.12em}.proof-strip{display:flex;justify-content:space-between;gap:24px;padding:20px max(24px,calc((100vw - 1240px)/2));background:#eaf3ff;color:var(--muted);font-size:13px}.proof-strip strong{color:var(--blue-dark);font-size:14px}.section-block{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:clamp(48px,8vw,130px);max-width:1240px;margin:0 auto;padding:clamp(84px,10vw,150px) 24px}.section-intro h2{margin:0 0 30px;font-size:clamp(34px,4vw,58px);line-height:1.15;letter-spacing:-.03em}.section-intro em,.page-hero em{color:var(--blue);font-style:normal}.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border-top:1px solid var(--line)}.feature-item{position:relative;min-height:250px;padding:28px;background:var(--white);transition:transform .25s ease,box-shadow .25s ease;transform-origin:center}.feature-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);z-index:1}.feature-no{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.12em}.feature-item h3{margin:58px 0 12px;font-size:24px}.feature-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}.feature-arrow{position:absolute;right:24px;bottom:24px;color:var(--blue);font-size:22px}.news-section{background:#eef5ff}.news-list{border-top:1px solid #cbd9ec}.news-row{display:grid;grid-template-columns:110px 1fr auto;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid #cbd9ec}.news-row time{color:var(--muted);font-size:13px}.news-row h3{margin:0;font-size:19px}.news-row span{color:var(--blue);font-size:13px}.news-row b{font-size:18px}.empty-copy,.empty-state{color:var(--muted);line-height:1.8}.contact-band{display:flex;align-items:end;justify-content:space-between;gap:30px;padding:clamp(70px,9vw,120px) max(24px,calc((100vw - 1240px)/2));background:var(--blue);color:#fff}.contact-band .kicker{color:var(--cyan)}.contact-band h2{margin:0;font-size:clamp(34px,5vw,68px);line-height:1.1;letter-spacing:-.03em}.page-hero{padding:clamp(76px,11vw,160px) max(24px,calc((100vw - 1240px)/2));background:var(--blue-dark);color:#fff}.page-hero .kicker{color:var(--cyan)}.page-hero h1{margin:0;font-size:clamp(48px,7vw,94px);line-height:1.05;letter-spacing:-.04em}.page-hero>p{max-width:600px;margin:28px 0 0;color:#d9e7ff;font-size:18px;line-height:1.8}.page-hero-split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:end}.page-hero-split>p{margin:0;justify-self:end}.listing-wrap{max-width:1240px;margin:0 auto;padding:24px 24px 120px}.listing-meta{display:flex;gap:24px;padding:18px 0;color:var(--muted);font-size:13px;border-bottom:1px solid var(--line)}.listing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;padding-top:28px}.story-card{background:#fff;border:1px solid var(--line);transition:transform .25s ease,box-shadow .25s ease}.story-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.story-image{height:130px;background:linear-gradient(120deg,#d8eaff,#78cbe8 55%,#1769e0)}.story-body{padding:24px}.story-body .kicker{margin-bottom:12px}.story-body h2{margin:0 0 12px;font-size:22px;line-height:1.35}.story-body>p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.story-body time{display:block;margin-top:22px;color:var(--muted);font-size:12px}.article-page{max-width:900px;margin:0 auto;padding:clamp(68px,9vw,128px) 24px 120px}.article-head{max-width:780px}.article-head h1{margin:0;font-size:clamp(42px,6vw,76px);line-height:1.12;letter-spacing:-.04em}.article-meta{margin:22px 0 0;color:var(--muted);font-size:13px}.article-summary{margin:48px 0 0;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:18px;line-height:1.8}.article-body{max-width:760px;margin:48px auto 0;font-size:17px;line-height:1.95}.article-body h2,.article-body h3{margin-top:2.4em;line-height:1.3}.article-body img{display:block;max-width:100%;height:auto}.about-story{display:grid;grid-template-columns:150px 1fr;gap:60px;max-width:900px;margin:0 auto;padding:120px 24px}.about-number{color:var(--blue);font-size:14px;font-weight:800;letter-spacing:.12em}.about-story h2{margin:0;font-size:clamp(34px,4vw,56px);line-height:1.2}.about-story p:last-child{max-width:620px;color:var(--muted);line-height:1.9}.values-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);max-width:1240px;margin:0 auto 120px}.values-grid article{padding:35px 24px;min-height:190px;border-right:1px solid var(--line)}.values-grid article:last-child{border-right:0}.values-grid strong{color:var(--blue);font-size:13px}.values-grid h3{font-size:25px;margin:38px 0 8px}.values-grid p{margin:0;color:var(--muted);line-height:1.7}.contact-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(50px,10vw,150px);max-width:1080px;margin:0 auto;padding:100px 24px 130px}.contact-details h2{font-size:30px;margin:0 0 32px}.contact-details>a{display:block;color:var(--blue);font-size:18px;margin-top:10px}.contact-note{margin-top:42px;color:var(--muted);line-height:1.8}.lead-form{background:#fff;border:1px solid var(--line);padding:clamp(28px,5vw,52px);box-shadow:var(--shadow)}.lead-form h2{margin:0 0 28px;font-size:26px}.lead-form label{display:block;margin-top:20px}.lead-form label>span{display:block;margin-bottom:8px;font-size:13px;font-weight:700}.lead-form label b{color:#d04d4d}.lead-form input:not([type=checkbox]),.lead-form textarea{width:100%;padding:13px 14px;border:1px solid #c7d5e6;background:#fbfdff;font:inherit;color:var(--ink)}.lead-form textarea{resize:vertical}.lead-form .consent{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px}.lead-form .consent input{accent-color:var(--blue)}.lead-form button{margin-top:26px}.honeypot{position:absolute!important;left:-10000px!important}.site-footer{padding:35px max(24px,calc((100vw - 1240px)/2));background:#07162f;color:#b9cae4;font-size:13px}.footer-main,.friend-links{display:flex;align-items:center;flex-wrap:wrap;gap:18px}.footer-main strong{color:#fff;font-size:16px}.friend-links{margin-top:22px;padding-top:18px;border-top:1px solid rgba(185,202,228,.25)}.friend-links span{color:#fff;font-weight:700}.friend-links a:hover{color:#fff}.site-footer small{display:block;margin-top:22px;color:#7690b7}@media(max-width:820px){.site-header{height:70px}.site-header nav{gap:14px;font-size:12px}.hero-shell{grid-template-columns:1fr}.hero-art{min-height:300px;order:-1}.hero-art img{min-height:300px}.hero-copy{padding:52px 24px 72px}.proof-strip{display:block}.proof-strip>*{display:block;margin:4px 0}.section-block,.contact-layout{grid-template-columns:1fr;gap:46px}.page-hero-split{grid-template-columns:1fr;gap:28px}.page-hero-split>p{justify-self:start}.listing-grid{grid-template-columns:1fr 1fr}.about-story{grid-template-columns:1fr;gap:24px}.values-grid{grid-template-columns:1fr;margin-inline:24px}.values-grid article{border-right:0;border-bottom:1px solid var(--line)}.values-grid article:last-child{border-bottom:0}}@media(max-width:560px){.site-header nav a:not(.nav-cta){display:none}.hero-copy h1{font-size:48px}.hero-actions{align-items:flex-start;flex-direction:column}.listing-grid{grid-template-columns:1fr}.news-row{grid-template-columns:1fr auto}.news-row time{grid-column:1/-1}.contact-band{align-items:flex-start;flex-direction:column}}
.lead-form select{width:100%;padding:13px 14px;border:1px solid #c7d5e6;background:#fbfdff;font:inherit;color:var(--ink)}
.lead-form button:disabled{cursor:wait;opacity:.65}
.form-feedback{min-height:24px;margin:16px 0 0;font-size:13px;line-height:1.6}
.form-feedback.is-loading{color:var(--muted)}
.form-feedback.is-success{color:#16734a}
.form-feedback.is-error{color:#b33b42}

/* ── 导航下拉 ── */
.site-header nav .nav-item{position:relative}
.site-header nav .nav-sub{position:absolute;top:100%;left:50%;transform:translateX(-50%);min-width:190px;padding:8px 0;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);display:none;z-index:30}
.site-header nav .nav-sub::before{content:"";position:absolute;top:-8px;left:0;right:0;height:8px}
.site-header nav .nav-item:hover .nav-sub,.site-header nav .nav-item:focus-within .nav-sub{display:grid}
.site-header nav .nav-sub a{display:block;padding:10px 20px;font-size:13px;color:var(--muted);white-space:nowrap}
.site-header nav .nav-sub a:hover{color:var(--blue);background:#eef5ff}
.nav-caret{font-size:10px;margin-left:4px}

/* ── 页脚导航 ── */
.footer-nav{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;padding-top:18px;border-top:1px solid rgba(185,202,228,.25)}
.footer-nav a:hover{color:#fff}

/* ── 分页 ── */
.pagination{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;padding:48px 0 8px}
.pagination-link{min-width:38px;padding:9px 13px;text-align:center;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px}
.pagination-link.is-current{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}
.pagination-disabled{min-width:38px;padding:9px 13px;text-align:center;border:1px solid #e3eaf4;color:#a9b7cc;font-size:13px;background:#f6f9fd}
.pagination-link:hover{border-color:var(--blue);color:var(--blue)}

/* ── 移动端：含子项的导航项隐藏，仅保留联系团队按钮（与默认 CSS 行为一致）── */
@media(max-width:560px){.site-header nav .nav-item{display:none}}

/* ══ 内容详情页 SEO 组件 ══ */
.article-page{max-width:960px;padding-bottom:clamp(48px,5vw,72px)}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;max-width:780px;margin:0 0 38px;color:var(--muted);font-size:13px}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--blue)}
.crumb-sep{color:#a9b7cc;margin:0 2px}
.crumb-current{max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink);font-weight:600}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0}
.article-tags a,.article-tags-panel a,.share-buttons a{padding:3px 11px;border:1px solid var(--line);background:var(--white);color:var(--muted);font-size:12px;transition:border-color .2s ease,color .2s ease}
.article-tags a:hover,.article-tags-panel a:hover,.share-buttons a:hover{border-color:var(--blue);color:var(--blue)}
.toc{max-width:760px;margin:34px auto 0;padding:24px 26px;border:1px solid var(--line);background:var(--white)}
.toc-title{display:block;margin-bottom:12px;color:var(--blue);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:28px}
.toc-list a{padding:6px 0;color:var(--ink);font-size:14px;line-height:1.55;border-bottom:1px dashed #e6ecf4;transition:color .2s ease}
.toc-list a:hover{color:var(--blue)}
.toc-h3{padding-left:18px;color:var(--muted)}
.article-foot{max-width:760px;margin:56px auto 0;padding-top:24px;border-top:1px solid var(--line);display:grid;gap:18px}
.article-tags-panel,.article-share{display:flex;align-items:flex-start;gap:14px;flex-wrap:wrap}
.panel-label{flex-shrink:0;padding-top:3px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.12em}
.panel-links,.share-buttons{display:flex;flex-wrap:wrap;gap:8px}
.share-buttons a{padding:5px 12px}

.related-articles{max-width:1240px;margin:0 auto;padding:clamp(56px,7vw,96px) 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;font-size:clamp(30px,4vw,46px);line-height:1.15;letter-spacing:-.03em}
.related-more{flex-shrink:0;color:var(--blue);font-size:14px;font-weight:700}
.related-more span{margin-left:6px;font-size:20px;vertical-align:middle}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;padding-top:26px}
.related-card{display:block;padding:26px 24px;background:var(--white);border:1px solid var(--line);transition:transform .25s ease,box-shadow .25s ease}
.related-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.related-card time{color:var(--muted);font-size:12px}
.related-card h3{margin:12px 0 10px;font-size:19px;line-height:1.45}
.related-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.75}

.article-cta{display:flex;align-items:center;justify-content:space-between;gap:36px;max-width:1240px;margin:clamp(72px,9vw,120px) auto 0;padding:clamp(44px,6vw,76px) clamp(24px,5vw,72px);background:var(--blue-dark);color:#fff}
.article-cta .kicker{color:var(--cyan);margin-bottom:14px}
.cta-copy h2{margin:0;font-size:clamp(28px,3.6vw,48px);line-height:1.15;letter-spacing:-.02em}
.cta-copy p{margin:16px 0 0;color:#d9e7ff;font-size:15px;line-height:1.8;max-width:560px}
.cta-button{flex-shrink:0;background:#fff;color:var(--blue-dark)!important}
.cta-button:hover{background:#e8f1ff}

.article-author-panel{display:flex;align-items:flex-start;gap:20px;max-width:960px;margin:0 auto;padding:clamp(52px,7vw,88px) 24px 120px}
.author-avatar{flex-shrink:0;display:grid;place-items:center;width:54px;height:54px;background:var(--blue);color:#fff;font-size:20px;font-weight:800;border-radius:50%}
.author-body strong{font-size:15px}
.author-body p{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.8}

@media(max-width:820px){.related-grid{grid-template-columns:1fr 1fr}.toc-list{grid-template-columns:1fr}}
@media(max-width:560px){
  .related-grid{grid-template-columns:1fr}
  .article-cta{flex-direction:column;align-items:flex-start}
  .crumb-current{max-width:240px}
}

/* ══ 页面构建器块 ══ */
.builder-hero{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);min-height:480px;background:var(--blue-dark);color:#fff;overflow:hidden}
.builder-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(720px 420px at 84% -12%,rgba(81,205,240,.25),transparent 62%),radial-gradient(600px 400px at 100% 112%,rgba(91,150,255,.3),transparent 65%);pointer-events:none}
.builder-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:linear-gradient(115deg,#000 25%,transparent 72%);mask-image:linear-gradient(115deg,#000 25%,transparent 72%);pointer-events:none}
.builder-hero .hero-copy{position:relative;z-index:1;align-self:center}
.builder-hero .kicker{color:var(--cyan)}
.builder-hero h1{max-width:760px;font-size:clamp(38px,5vw,66px);line-height:1.08;letter-spacing:-.025em}
.builder-hero .hero-lead{max-width:560px;font-size:clamp(16px,1.5vw,19px);color:#c9dcff}
.builder-hero .hero-art{position:relative;z-index:1;min-height:100%}
.builder-hero .hero-art img{width:100%;height:100%;object-fit:cover;display:block;mix-blend-mode:screen;opacity:.88}
.builder-hero:not(:has(.hero-art)){grid-template-columns:1fr}
.builder-hero:not(:has(.hero-art)) .hero-copy{padding-right:max(32px,calc((100vw - 1240px)/2))}
/* 构建器区块节奏：标题上置全宽、收紧留白，避免内容稀疏时大片空白 */
.section-block:has(> .builder-image-text),.section-block:has(> .builder-gallery),.section-block:has(> .listing-grid),.section-block:has(> .builder-faq),.section-block:has(> .article-body){padding-top:clamp(56px,6.5vw,104px);padding-bottom:clamp(56px,6.5vw,104px)}
.section-block > .article-body:only-child{grid-column:1/-1;max-width:840px;font-size:clamp(17px,1.4vw,19px);line-height:2.05}
.section-block:has(> .section-intro + .listing-grid),.section-block:has(> .section-intro + .builder-faq){display:block}
.section-block:has(> .section-intro + .listing-grid) > .section-intro,.section-block:has(> .section-intro + .builder-faq) > .section-intro{margin-bottom:10px}
.section-block:has(> .section-intro + .listing-grid) .listing-grid{padding-top:0}
.builder-image-text .builder-image-text-media{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
.builder-image-text.is-right .builder-image-text-media{order:2}
.builder-image-text .article-body{max-width:none;margin:0;font-size:16px}
.builder-gallery{display:grid;gap:18px}
.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:1px solid var(--line)}
.builder-faq{max-width:880px}
.builder-faq-item{border-bottom:1px solid var(--line)}
.builder-faq-item summary{position:relative;padding:24px 48px 24px 0;cursor:pointer;list-style:none;font-weight:600;font-size:clamp(15px,1.3vw,17px)}
.builder-faq-item summary::-webkit-details-marker{display:none}
.builder-faq-item summary:after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--blue);font-size:24px;font-weight:400}
.builder-faq-item[open] summary:after{content:"–"}
.builder-faq-item .article-body{max-width:none;margin:0;padding:0 40px 26px 0;font-size:15px;line-height:1.9}
.builder-cta h2{margin:0;font-size:clamp(26px,3.2vw,42px);line-height:1.18;letter-spacing:-.02em}
.builder-cta p{max-width:560px;margin:14px 0 0;color:#d9e7ff;font-size:15px;line-height:1.8}
/* 构建器列表卡片：自带内边距，标题/摘要/日期紧凑排版（类名不与列表页 listing-meta 冲突） */
.section-block .listing-grid > a.story-card{display:block;padding:26px 26px 22px}
.section-block .listing-grid .story-card h3{margin:0 0 12px;font-size:19px;line-height:1.5;letter-spacing:-.01em}
.section-block .listing-grid .story-card .card-text{margin:0 0 10px;color:var(--muted);font-size:13px;line-height:1.75}
.section-block .listing-grid .story-card .card-date{display:block;color:var(--muted);font-size:12px}
@media(max-width:820px){
  .builder-hero{grid-template-columns:1fr;min-height:0}
  .builder-hero .hero-art{min-height:300px;order:-1}
  .builder-hero .hero-copy{padding:clamp(48px,7vw,80px) 24px}
  .builder-hero:not(:has(.hero-art)) .hero-copy{padding-right:24px}
  .builder-image-text{grid-template-columns:1fr;gap:28px}
  .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))}
}
@media(max-width:560px){.builder-gallery.is-cols-2,.builder-gallery.is-cols-3,.builder-gallery.is-cols-4{grid-template-columns:1fr}.builder-faq-item .article-body{padding-right:0}}

/* ── 深色模式：跟随系统偏好整体换肤（全部基于 default.css 变量体系）── */
@media(prefers-color-scheme:dark){
  :root{--ink:#e6edfa;--muted:#94a6c6;--line:#25365c;--blue:#5b96ff;--blue-dark:#0a1630;--cyan:#51cdf0;--paper:#0b1426;--white:#111e3a;--shadow:0 20px 60px rgba(0,0,0,.45)}
  body{background:var(--paper)}
  .site-header{background:rgba(10,20,40,.96)}
  .site-header nav .nav-sub a:hover{background:rgba(91,150,255,.12)}
  .proof-strip{background:#0e1b34}
  .news-section{background:#0d1a30}
  .story-card,.lead-form{background:var(--white)}
  .news-row{border-color:#223459}
  .lead-form input:not([type=checkbox]),.lead-form textarea,.lead-form select{border-color:var(--line);background:var(--paper)}
  .crumb-sep{color:#48618f}
  .toc-list a{border-bottom-color:#223459}
  .pagination-disabled{background:rgba(255,255,255,.03);border-color:#1d2d4d;color:#5d7193}
}

/* ══ GEO / 企业站重设计新增组件 ══ */

/* 无障碍跳转链接：默认隐藏，聚焦时显示 */
.skip-link{position:absolute;left:-9999px;top:0;z-index:99;padding:10px 18px;background:var(--blue);color:#fff;font-size:14px;font-weight:700}
.skip-link:focus{left:12px;top:12px}

/* 头部热线 */
.header-hotline{display:inline-flex;align-items:center;gap:7px;margin-left:6px;padding:9px 14px;border:1px solid var(--blue);color:var(--blue);font-size:13px;font-weight:700;white-space:nowrap;transition:background .2s ease,color .2s ease}
.header-hotline:hover{background:var(--blue);color:#fff}

/* Hero 信任徽章 */
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 0;padding:0;list-style:none}
.hero-badges li{padding:7px 14px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.06);color:#d9e7ff;font-size:12px;font-weight:600;letter-spacing:.02em}

/* 答案框（GEO 核心：AI 可引用的品牌自述） */
.answer-band{max-width:1240px;margin:0 auto;padding:clamp(48px,6vw,84px) 24px 0}
.answer-box{padding:clamp(28px,4vw,48px);background:var(--white);border:1px solid var(--line);border-left:4px solid var(--blue);box-shadow:var(--shadow)}
.answer-box .kicker{margin-bottom:14px}
.answer-box p:last-child{margin:0;color:var(--ink);font-size:clamp(16px,1.4vw,19px);line-height:1.95}

/* 信任数据带 */
.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:clamp(44px,5.5vw,76px);background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-strip>div{padding:clamp(26px,3.4vw,44px) 20px;background:var(--blue-dark);text-align:center;color:#c9dcff}
.trust-strip strong{display:block;color:#fff;font-size:clamp(30px,3.4vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1}
.trust-strip strong em{font-style:normal;font-size:.5em;margin-left:2px;color:var(--cyan)}
.trust-strip span{display:block;margin-top:10px;font-size:13px}
.trust-strip.contact-assure{margin-top:0}
.trust-strip.contact-assure>div{background:var(--white)}
.trust-strip.contact-assure strong{color:var(--blue)}
.trust-strip.contact-assure strong em{color:var(--blue)}
.trust-strip.contact-assure span{color:var(--muted)}

/* 区块引导句 */
.section-lead{max-width:560px;margin:0 0 22px;color:var(--muted);font-size:15px;line-height:1.85}
.section-intro a{color:var(--blue)}

/* 为什么选择我们（配图 + 优势） */
.why-band{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(40px,6vw,90px);align-items:center;max-width:1240px;margin:0 auto;padding:clamp(84px,10vw,150px) 24px}
.why-media img{width:100%;height:auto;display:block;border:1px solid var(--line);box-shadow:var(--shadow)}
.why-copy h2{margin:0 0 30px;font-size:clamp(32px,3.8vw,54px);line-height:1.15;letter-spacing:-.03em}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px 30px}
.why-grid article{border-top:2px solid var(--line);padding-top:18px}
.why-grid strong{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.12em}
.why-grid h3{margin:12px 0 8px;font-size:19px}
.why-grid p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}

/* FAQ（GEO） */
.faq-list{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{position:relative;padding:22px 48px 22px 0;cursor:pointer;list-style:none;font-weight:600;font-size:clamp(15px,1.3vw,17px)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--blue);font-size:24px;font-weight:400}
.faq-item[open] summary:after{content:"–"}
.faq-answer{padding:0 40px 24px 0;color:var(--muted);font-size:15px;line-height:1.9}

/* CTA 按钮组 / 描边按钮 */
.contact-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.button-outline{border:1px solid rgba(255,255,255,.5);color:#fff;background:transparent}
.button-outline:hover{background:rgba(255,255,255,.12)}

/* 关于页：简介 + 配图 + 数据 */
.about-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(40px,6vw,90px);align-items:center;max-width:1240px;margin:0 auto;padding:clamp(84px,10vw,140px) 24px}
.about-media img{width:100%;height:auto;display:block;border:1px solid var(--line);box-shadow:var(--shadow)}
.about-copy h2{margin:0 0 22px;font-size:clamp(30px,3.6vw,50px);line-height:1.16;letter-spacing:-.03em}
.about-lead{margin:0;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;color:var(--blue);font-size:clamp(26px,2.6vw,36px);font-weight:800;line-height:1}
.about-stats strong em{font-style:normal;font-size:.55em;color:var(--cyan)}
.about-stats span{display:block;margin-top:8px;color:var(--muted);font-size:12px}

/* 关于页：里程碑 */
.milestones{max-width:1240px;margin:0 auto;padding:0 24px clamp(84px,10vw,140px)}
.milestones .section-intro{margin-bottom:34px}
.milestone-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin:0;padding:0;list-style:none}
.milestone-list li{padding:26px 24px;background:var(--white);border:1px solid var(--line);border-top:3px solid var(--blue)}
.milestone-year{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.14em}
.milestone-list h3{margin:12px 0 8px;font-size:20px}
.milestone-list p{margin:0;color:var(--muted);font-size:13px;line-height:1.75}

/* 联系页要点 */
.contact-points{margin:26px 0 0;padding:0;list-style:none}
.contact-points li{position:relative;padding:8px 0 8px 26px;color:var(--muted);font-size:14px;line-height:1.6}
.contact-points li:before{content:"✓";position:absolute;left:0;top:8px;color:var(--blue);font-weight:800}

/* 内容页核心结论答案框（GEO） */
.article-answer{max-width:760px;margin:40px auto 0;padding:24px 26px;background:var(--white);border:1px solid var(--line);border-left:4px solid var(--blue)}
.article-answer .kicker{margin-bottom:10px}
.article-answer p:last-child{margin:0;color:var(--ink);font-size:17px;line-height:1.9}

/* 多列页脚 */
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;max-width:1240px;margin:0 auto}
.footer-brand strong{display:block;color:#fff;font-size:18px;margin-bottom:14px}
.footer-brand p{margin:0;color:#93a9cc;font-size:13px;line-height:1.8;max-width:320px}
.footer-col h4{margin:0 0 16px;color:#fff;font-size:13px;font-weight:700;letter-spacing:.06em}
.footer-col a{display:block;padding:5px 0;color:#93a9cc;font-size:13px}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;max-width:1240px;margin:34px auto 0;padding-top:20px;border-top:1px solid rgba(185,202,228,.22)}
.footer-bottom small{margin:0;color:#7690b7}
.footer-bottom small a{color:#7690b7}
.footer-bottom small a:hover{color:#fff}
.footer-bottom small span{margin:0 8px}

/* ── 新增组件的深色模式适配 ── */
@media(prefers-color-scheme:dark){
  .trust-strip>div{background:#0e1b34}
  .trust-strip.contact-assure>div{background:var(--white)}
  .hero-badges li{border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.05)}
  .answer-box,.article-answer,.milestone-list li{background:var(--white)}
  .footer-brand p,.footer-col a{color:#8ea6cc}
  .why-media img,.about-media img{border-color:var(--line)}
}