/* 51winch · 专业技术平台 · site.css */
:root {
    --primary:   #0a3069;
    --primary-d: #061f45;
    --accent:    #1976d2;
    --accent-lt: #e3f0ff;
    --text:      #1a1a2e;
    --text-m:    #444;
    --border:    #c0cfe0;
    --bg:        #f4f7fb;
    --card-bg:   #fff;
    --radius:    12px;
    --shadow:    0 14px 28px rgba(10,48,105,.10);
    --shop-btn:  #0f5132;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: clip; }

body { font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
       font-size: 15px; line-height: 1.7; color: var(--text); background: var(--bg);
       text-autospace: normal; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap { width: min(1160px, calc(100% - 2rem)); margin: 0 auto; }
.wrap--narrow { max-width: 900px; }

/* ── 按钮 ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
    min-height: 42px; padding: .55rem 1.1rem;
    border: 1.5px solid var(--border); border-radius: var(--radius);
    font-size: .9rem; font-weight: 700; text-align: center;
    cursor: pointer; transition: background .2s, color .2s;
    background: #fff; color: var(--text);
}
.btn:hover { background: var(--bg); text-decoration: none; }
.btn:focus-visible,
.main-nav a:focus-visible,
.shop-link:focus-visible,
.toc-link:focus-visible {
    outline: 3px solid rgba(25,118,210,.24);
    outline-offset: 2px;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-d); border-color: var(--primary-d); }
.btn-outline { border-color: var(--primary); color: var(--primary); margin-top: 1rem; }
.btn-outline:hover { background: var(--accent-lt); }
.btn-shop { background: var(--shop-btn); color: #fff; border-color: var(--shop-btn); }
.btn-shop:hover { background: #0a3822; }
.btn-lg { padding: .75rem 2rem; font-size: 1.05rem; }
.btn-sm { font-size: .8rem; padding: .25rem .7rem; border-radius: 4px;
          display: inline-block; border: 1px solid var(--border); color: var(--text); }
.btn-sm:hover { background: var(--bg); }
.btn-sm.btn-shop { background: var(--shop-btn); color: #fff; border-color: var(--shop-btn); }

/* ── Header ── */
.site-header { background: var(--primary); color: #fff; position: sticky; top: 0; z-index: 100;
               box-shadow: 0 2px 8px rgba(0,0,0,.25); }
.topbar { display: flex; align-items: center; gap: 1rem; min-height: 74px; padding: .35rem 0; }
.logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: #fff; }
.logo-img { height: 42px; width: auto; display: block; border-radius: 8px; }
.logo-mark { background: #fff; color: var(--primary); font-weight: 900; font-size: 1.1rem;
             padding: .2rem .55rem; border-radius: 10px; }
.logo-text strong { display: block; font-size: 1.05rem; }
.logo-text small { font-size: .75rem; opacity: .8; }
.main-nav {
    display: flex;
    gap: .6rem .2rem;
    margin-left: auto;
    scrollbar-width: none;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
}
.main-nav::-webkit-scrollbar { display: none; }
.main-nav a {
    color: rgba(255,255,255,.85);
    font-size: .9rem;
    white-space: nowrap;
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    padding: .2rem .55rem;
    border-radius: 999px;
    scroll-snap-align: start;
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,.08); text-decoration: none; }
.main-nav a[aria-current="page"] {
  color: #fff;
  font-weight: 700;
  background: rgba(255,255,255,.18);
  position: relative;
}
.main-nav a[aria-current="page"]::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2.5px;
  border-radius: 2px;
  background: #fff;
}
.shop-link { margin-left: .8rem; background: var(--shop-btn); color: #fff;
             padding: .4rem 1rem; border-radius: var(--radius); font-size: .85rem;
             white-space: nowrap; min-height: 42px; display: inline-flex; align-items: center; }
.shop-link:hover { background: #0a3822; text-decoration: none; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.section-link { color: var(--primary); font-weight: 600; }

/* ── Hero ── */
.hero { background: linear-gradient(135deg, var(--primary) 0%, #1565c0 100%);
    color: #fff; padding: 62px 0 36px; }
.hero .kicker { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
                background: rgba(255,255,255,.2); display: inline-block;
                padding: .2rem .7rem; border-radius: 20px; margin-bottom: .8rem; }
.hero h1 { font-size: clamp(1.85rem, 4.2vw, 2.5rem); font-weight: 700; line-height: 1.18; margin-bottom: .8rem; }
.hero p { font-size: 1rem; opacity: .9; max-width: 62ch; margin-bottom: 1.5rem; }
.hero a { color: #fff; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-cta .btn { border-color: rgba(255,255,255,.6); background: transparent; color: #fff; }
.hero-cta .btn:hover { background: rgba(255,255,255,.15); color: #fff; }
.hero-cta .btn-primary { background: #fff; color: var(--primary); border-color: #fff; }
.hero-cta .btn-primary:hover { background: var(--accent-lt); color: var(--primary); }

/* ── Sections ── */
.section { padding: 56px 0; }
.section:nth-child(even) { background: #fff; }
.section-title { font-size: 1.4rem; font-weight: 700; margin-bottom: .5rem;
                 padding-bottom: .5rem; border-bottom: 2px solid var(--primary); display: inline-block; }

/* ── Product grid (cards) ── */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.product-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
                overflow: hidden; box-shadow: var(--shadow); transition: box-shadow .2s; }
.product-card:hover { box-shadow: 0 6px 20px rgba(10,48,105,.18); }
.card-img-wrap { background: #e8eef4; aspect-ratio: 3/2; overflow: hidden; }
.card-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 1rem; }
.brand-tag { font-size: .75rem; background: var(--accent-lt); color: var(--accent);
             padding: .15rem .5rem; border-radius: 3px; font-weight: 600; }
.card-body h3 { margin: .5rem 0; font-size: 1rem; }
.card-body h3 a { color: var(--text); }
.card-body h3 a:hover { color: var(--accent); }

.spec-mini { display: grid; grid-template-columns: auto 1fr; gap: .15rem .6rem;
             font-size: .82rem; color: var(--text-m); margin: .5rem 0 .8rem; }
.spec-mini dt { font-weight: 600; color: var(--text); }

.card-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .5rem; }
.card-actions .btn { flex: 1 1 120px; }
.card-actions .btn-outline { margin-top: 0; } 

/* ── Spec table (list page) ── */
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 1.5rem;
    padding-bottom: .25rem;
}
.spec-table { width: 100%; border-collapse: collapse; margin-top: 1.5rem; font-size: .88rem; }
.table-scroll .spec-table { margin-top: 0; min-width: 760px; }
.spec-table th, .spec-table td { border: 1px solid var(--border); padding: .55rem .7rem; text-align: left; }
.spec-table thead { background: var(--primary); color: #fff; }
.spec-table tbody tr:nth-child(even) { background: var(--accent-lt); }
.product-thumb-button { width: 84px; padding: 0; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; cursor: pointer; }
.product-thumb-button:hover { box-shadow: 0 0 0 2px rgba(25,118,210,.14); }
.product-thumb-button img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.image-preview-dialog { width: min(92vw, 960px); border: 0; border-radius: 14px; padding: 0; box-shadow: 0 24px 48px rgba(0,0,0,.22); }
.image-preview-dialog::backdrop { background: rgba(6, 18, 33, .68); }
.image-preview-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 1.2rem; border-bottom: 1px solid var(--border); }
.image-preview-body { padding: 1rem; background: #f8fbff; }
.image-preview-body img { width: 100%; max-height: 80vh; object-fit: contain; }
body.dialog-open { overflow: hidden; }

/* ── Detail page ── */
.detail-head { display: grid; grid-template-columns: 1fr 1.1fr; gap: 2rem; margin: 1.5rem 0; }
.detail-img img { width: 100%; border-radius: var(--radius); border: 1px solid var(--border); }
.pdp-main-image { display: flex; align-items: center; justify-content: center; min-height: clamp(280px, 42vw, 520px); padding: 1rem; border-radius: var(--radius); border: 1px solid var(--border); background: #fff; overflow: hidden; }
.pdp-main-image img { width: 100%; height: min(100%, 480px); object-fit: contain; border: 0; border-radius: 0; background: transparent; }
.pdp-thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); gap: .6rem; margin-top: .75rem; }
.pdp-thumb { padding: 0; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fff; cursor: pointer; }
.pdp-thumb.active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(25,118,210,.14); }
.pdp-thumb img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; border: 0; }
.detail-summary { display: flex; flex-direction: column; gap: .6rem; }
.detail-summary h1 { font-size: 1.6rem; }
.name-en { color: var(--text-m); font-size: .95rem; }
.tech-desc { color: var(--text-m); }

.spec-quick { display: flex; flex-direction: column; gap: .4rem;
              background: var(--accent-lt); padding: .8rem 1rem; border-radius: var(--radius);
              border-left: 3px solid var(--accent); }
.spec-quick div { display: flex; }
.spec-quick dt { font-size: .88rem; color: var(--text-m); font-weight: 600; white-space: nowrap; }
.spec-quick dt::after { content: "："; }
.spec-quick dd { font-size: .88rem; color: var(--text); margin: 0; }

.detail-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: .5rem; }
.cross-note { font-size: .8rem; color: var(--text-m); }

.spec-section { margin-top: 2rem; }
.spec-section h2 { font-size: 1.2rem; margin-bottom: 1rem; }
.spec-detail-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.spec-detail-table th, .spec-detail-table td { border: 1px solid var(--border); padding: .45rem .7rem; }
.spec-detail-table th { background: var(--bg); width: 35%; font-weight: 600; }
.spec-group-head { background: var(--primary) !important; color: #fff !important; text-align: center; }

.buy-cta-bar { background: var(--accent-lt); border: 1px solid var(--border);
               border-radius: var(--radius); padding: 1.5rem; margin-top: 2rem; text-align: center; }
.buy-cta-bar p { margin-bottom: .8rem; color: var(--text-m); }

/* ── Prose (markdown rendered content) ── */
.prose { font-size: .92rem; line-height: 1.8; color: var(--text); }
.prose p { margin: .6rem 0; }
.prose h2 { font-size: 1.15rem; font-weight: 700; color: var(--primary); margin: 1.5rem 0 .6rem;
            border-bottom: 2px solid var(--border); padding-bottom: .3rem; }
.prose h3 { font-size: 1.02rem; font-weight: 700; margin: 1.1rem 0 .4rem; }
.prose h4 { font-size: .94rem; font-weight: 700; margin: .8rem 0 .3rem; }
.prose ul, .prose ol { padding-left: 1.6rem; margin: .5rem 0; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin: .25rem 0; }
.prose li > ul, .prose li > ol { margin: .1rem 0; }
.prose strong { font-weight: 700; }
.prose em { font-style: italic; }
.prose blockquote { border-left: 3px solid var(--accent); padding: .5rem 1rem;
                    background: var(--accent-lt); margin: .8rem 0;
                    border-radius: 0 var(--radius) var(--radius) 0; color: var(--text-m); }
.prose table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .86rem; }
.prose table th,
.prose table td { border: 1px solid var(--border); padding: .5rem .7rem; text-align: left; vertical-align: top; }
.prose table thead th { background: var(--primary); color: #fff; font-weight: 700; }
.prose table tbody tr:nth-child(even) { background: var(--accent-lt); }
.prose img { width: 100%; height: auto; display: block; border-radius: var(--radius);
             margin: 1rem 0; border: 1px solid var(--border); }
.prose pre { background: #1a1a2e; color: #e2e8f0; padding: 1rem; border-radius: var(--radius);
             overflow-x: auto; font-size: .83rem; margin: 1rem 0; }
.prose code { font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: .88em;
              background: #e8eef8; padding: .1em .35em; border-radius: 3px; }
.prose pre code { background: none; padding: 0; font-size: inherit; }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 1.2rem 0; }
.prose a { text-decoration: underline; text-underline-offset: .14em; }

/* ── Tech section (product detail subsections) ── */
.tech-section { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 2px solid var(--border); }
.tech-section:first-of-type { border-top: 0; margin-top: 1.5rem; padding-top: 0; }
.tech-section > h2 { font-size: 1.18rem; font-weight: 700; color: var(--primary);
                     margin-bottom: 1rem; display: flex; align-items: center; gap: .55rem; }
.tech-section > h2::before { content: ''; display: block; width: 4px; height: 1em; flex-shrink: 0;
                              background: var(--accent); border-radius: 2px; }
.tech-image { width: 100%; height: auto; display: block; border-radius: var(--radius);
              border: 1px solid var(--border); margin: .75rem 0; }

/* ── PDF download buttons ── */
.pdf-row { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: .5rem; }
.pdf-btn { display: inline-flex; align-items: center; gap: .5rem;
           padding: .6rem 1.2rem; background: var(--primary); color: #fff;
           border-radius: var(--radius); font-size: .9rem; font-weight: 600;
           text-decoration: none; transition: background .2s, box-shadow .2s;
           box-shadow: 0 2px 8px rgba(10,48,105,.18); }
.pdf-btn:hover { background: var(--primary-d); text-decoration: none; color: #fff;
                 box-shadow: 0 4px 12px rgba(10,48,105,.22); }

/* ── Features block (summary panel, below spec-quick) ── */
.features-block { background: #f8fbff; border: 1px solid var(--border); border-radius: var(--radius);
                  padding: .8rem 1rem; font-size: .86rem; }
.features-block.prose { font-size: .86rem; }
.features-block.prose p,
.features-block.prose li { margin: .2rem 0; }
.features-block.prose h2,
.features-block.prose h3,
.features-block.prose h4 { font-size: .92rem; margin: .5rem 0 .2rem; }

/* ── Card short description ── */
.card-desc { font-size: .82rem; color: var(--text-m); margin: .3rem 0 .5rem; line-height: 1.5;
             display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ── Filter form ── */
.filter-form { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end;
               background: #fff; padding: 1rem; border-radius: var(--radius);
               border: 1px solid var(--border); margin-bottom: 1.5rem; }
.filter-form label { display: flex; flex-direction: column; font-size: .82rem;
                     font-weight: 600; gap: .3rem; flex: 1 1 120px; min-width: 0; }
.filter-form select, .filter-form input {
    padding: .4rem .6rem; border: 1px solid var(--border); border-radius: 4px;
    font-size: .9rem; width: 100%; min-width: 0;
}

/* ── Breadcrumb ── */
.breadcrumb { font-size: .83rem; color: var(--text-m); margin-bottom: 1rem; }
.breadcrumb a { color: var(--accent); }

/* ── FAQ ── */
.faq-list dt { font-weight: 700; margin-top: 1.2rem; padding: .5rem .8rem;
               background: var(--accent-lt); border-left: 3px solid var(--accent);
               border-radius: 0 4px 4px 0; }
.faq-list dd { margin: .4rem 0 .4rem 1rem; color: var(--text-m); }
.faq-list--large dt { font-size: 1rem; }
.faq-cta { margin-top: 2rem; padding: 1rem; background: #fff; border-radius: var(--radius);
           border: 1px solid var(--border); }

/* ── Article list ── */
.article-list { display: flex; flex-direction: column; gap: 1.2rem; margin-top: 1.5rem; }
.article-list--grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.article-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
                padding: 1.2rem 1.4rem; box-shadow: var(--shadow); }
.article-card--with-media { display: grid; grid-template-columns: minmax(180px, 260px) minmax(0, 1fr); gap: 1rem; align-items: start; }
.article-card-media { display: block; border-radius: 10px; overflow: hidden; background: #eef5ff; }
.article-card-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.article-card-media--placeholder {
    aspect-ratio: 16 / 10;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #eaf2ff 0%, #d9ecff 100%);
    color: var(--primary);
    font-weight: 700;
    letter-spacing: .08em;
}
.article-card-media--placeholder span { padding: .8rem 1rem; }
.article-card-body { min-width: 0; }
.article-card h2 { font-size: 1.05rem; margin: .4rem 0 .5rem; }
.article-tag { font-size: .75rem; background: var(--primary); color: #fff;
               padding: .1rem .5rem; border-radius: 3px; }
.article-meta { font-size: .78rem; color: var(--text-m); margin-top: .4rem; }

/* ── Story grid (home page, 3-column vertical cards) ── */
.story-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.story-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
              padding: 1rem; box-shadow: var(--shadow);
              display: grid; gap: .9rem; grid-template-rows: auto 1fr; }
.story-card h2 { font-size: 1.05rem; margin-top: 0; }
.story-card-media { display: block; border-radius: 10px; overflow: hidden; background: #eef5ff; }
.story-card-media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.story-card-media--placeholder {
    aspect-ratio: 16 / 9;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #eaf2ff 0%, #d9ecff 100%);
    color: var(--primary);
    font-weight: 700;
    letter-spacing: .08em;
}
.story-card-media--placeholder span { padding: .8rem 1rem; }
.story-card-body { display: grid; gap: .45rem; align-content: start; min-width: 0; }
.cms-note { margin-top: 2rem; padding: 1rem; background: var(--accent-lt);
            border-radius: var(--radius); font-size: .87rem; }
.article-cover { margin: 1rem 0 1.3rem; }
.article-cover img,
.article-body img.article-inline-image { display: block; max-width: min(100%, 860px); margin: 1.2rem auto; border-radius: var(--radius); box-shadow: var(--shadow); }
.article-body a { text-decoration: underline; text-underline-offset: .14em; }
.article-layout-wrap {
    max-width: none;
    width: min(1360px, calc(100% - 2.4rem));
    display: flex;
    justify-content: center;
}
.article-layout {
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 82ch);
    justify-content: center;
    gap: 2rem;
    align-items: start;
}
.article-layout--with-toc { grid-template-columns: minmax(0, 82ch) 260px; }
.article-main { min-width: 0; }
.article-toc { position: sticky; top: 96px; }
.article-toc-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); }
.article-toc-nav { display: grid; gap: .55rem; margin-top: .8rem; }
.toc-link { color: var(--text-m); font-size: .88rem; line-height: 1.4; }
.toc-link--h3 { padding-left: 1rem; font-size: .82rem; }
.toc-link:hover { color: var(--primary); text-decoration: none; }
.toc-link.is-active {
    color: var(--primary);
    font-weight: 700;
    border-left: 3px solid var(--accent);
    padding-left: .7rem;
    background: linear-gradient(90deg, rgba(25,118,210,.08), transparent);
}
.toc-link.toc-link--h3.is-active { padding-left: 1.4rem; }
.article-body h2[id], .article-body h3[id] { scroll-margin-top: 116px; }
.filter-panel { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start;
        padding: 1rem 1.1rem; margin-top: 1.2rem; border: 1px solid var(--border);
        border-radius: var(--radius); background: linear-gradient(180deg, #ffffff 0%, #eef5ff 100%); }
.filter-panel strong { display: block; font-size: .95rem; margin-bottom: .2rem; color: var(--primary); }
.filter-panel p { font-size: .84rem; color: var(--text-m); max-width: 520px; }
.chip-row { display: flex; flex-wrap: wrap; gap: .55rem; }
.chip-row--compact { justify-content: flex-end; }
.chip { display: inline-flex; align-items: center; padding: .45rem .9rem; border-radius: 999px;
    border: 1px solid #b8cae2; background: #fff; color: var(--primary); font-size: .85rem;
    font-weight: 600; transition: all .2s ease; box-shadow: 0 1px 4px rgba(10,48,105,.08); }
.chip:hover { text-decoration: none; border-color: var(--accent); background: #f4f9ff; }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.content-meta { font-size: .82rem; color: var(--accent); margin: .45rem 0; }

/* ── Features grid ── */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1.5rem; }
.feature-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
                padding: 1.2rem; box-shadow: var(--shadow); }
.feature-item h3 { font-size: 1rem; margin-bottom: .5rem; }
.feature-item p { font-size: .88rem; color: var(--text-m); }
.tech-intro { background: var(--bg); }

/* ── Pagination ── */
.pagination { display: flex; gap: .4rem; margin-top: 1.5rem; flex-wrap: wrap; }
.page-btn { padding: .3rem .7rem; border: 1px solid var(--border); border-radius: 4px;
            font-size: .85rem; color: var(--text); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Contact ── */
.contact-info { display: grid; grid-template-columns: auto 1fr; gap: .5rem 1.5rem;
                margin: 1.5rem 0; }
.contact-info dt { font-weight: 700; }

/* ── Notice ── */
.notice { background: #fff9e6; border-left: 3px solid #f59e0b; padding: .8rem 1rem;
          border-radius: 0 var(--radius) var(--radius) 0; margin: 1rem 0; }
.empty-tip { color: var(--text-m); padding: 2rem 0; text-align: center; }

/* ── Footer ── */
.site-footer { background: var(--primary-d); color: rgba(255,255,255,.8); margin-top: 3rem; padding: 2.5rem 0 1rem; }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer-grid section { display: flex; flex-direction: column; gap: .4rem; }
.footer-grid h4 { color: #fff; font-size: .9rem; margin-bottom: .4rem; }
.footer-grid a { color: rgba(255,255,255,.7); font-size: .85rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.15);
                 font-size: .8rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem; }
.footer-bottom a { color: rgba(255,255,255,.8); }

/* ── Responsive ── */
@media (max-width: 900px) {
    .detail-head { grid-template-columns: 1fr; }
    .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
    .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .article-list--grid { grid-template-columns: 1fr; }
    .article-card--with-media { grid-template-columns: 1fr; }
    .article-layout { grid-template-columns: 1fr; }
    .article-toc { position: static; order: -1; }
    .story-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .filter-form label:nth-child(5),
    .filter-form label:nth-child(6),
    .filter-form label:nth-child(7) { display: none; }
}
@media (max-width: 760px) {
    .topbar { flex-wrap: wrap; gap: .6rem; }
    .main-nav {
        order: 3;
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
        flex-wrap: nowrap;
        white-space: nowrap;
        padding-bottom: .2rem;
        touch-action: pan-x;
    }
    .shop-link { margin-left: auto; }
    .section-head { align-items: flex-start; flex-wrap: wrap; gap: .5rem; }
}
@media (max-width: 680px) {
    .hero h1 { font-size: 1.5rem; }
    .wrap,
    .article-layout-wrap { width: min(100% - 1rem, 1360px); }
    .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
    .spec-table { font-size: .78rem; }
    .filter-panel { flex-direction: column; }
    .chip-row--compact { justify-content: flex-start; }
    .pdp-main-image { min-height: 240px; padding: .8rem; }
    .pdp-main-image img { height: auto; max-height: 360px; }
    .image-preview-dialog { width: min(96vw, 960px); }
    .image-preview-head { padding: .8rem 1rem; }
    .image-preview-body { padding: .8rem; }
    .hero-cta .btn:not(.btn-primary) { display: none; }
    .hero-cta .btn,

    .detail-actions .btn {
        width: 100%;
        text-align: center;
    }
    .feature-grid { grid-template-columns: 1fr; }
    .story-grid { grid-template-columns: 1fr; }
    .feature-item,
    .article-card,
    .story-card,
    .buy-cta-bar { padding: 1rem; }
}

@media (max-width: 800px) {
    .spec-table--products th:nth-child(3),
    .spec-table--products td:nth-child(3),
    .spec-table--products th:nth-child(4),
    .spec-table--products td:nth-child(4) { display: none; }
    .table-scroll .spec-table { min-width: 540px; }
}

@media (max-width: 540px) {
    .spec-table--products th:nth-child(3),
    .spec-table--products td:nth-child(3),
    .spec-table--products th:nth-child(5),
    .spec-table--products td:nth-child(5) { display: none; }
    .table-scroll .spec-table { min-width: 375px; }
}

@media (max-width: 430px) {
    .section { padding: 44px 0; }
    .topbar { gap: .5rem; }
    .breadcrumb { line-height: 1.55; word-break: break-word; }
    .hero { padding: 50px 0 28px; }
    .hero h1 { font-size: clamp(1.55rem, 8vw, 1.9rem); }
    .hero p { font-size: .94rem; margin-bottom: 1rem; }
    .hero-cta {
        display: grid;
        grid-template-columns: 1fr;
        gap: .65rem;
    }
    .hero-cta .btn { width: 100%; }
    .section-title { font-size: 1.18rem; margin-bottom: 1rem; }
    .detail-summary h1,
    .article-main h1 { font-size: clamp(1.48rem, 7vw, 1.82rem); line-height: 1.24; }
    .article-main h2 { font-size: 1.12rem; }
    .card-body,
    .feature-item,
    .article-card,
    .faq-cta { padding: 1rem; }
    .notice,
    .filter-panel { padding: .9rem; }
    .article-card-media img,
    .story-card-media img,
    .article-card-media--placeholder,
    .story-card-media--placeholder { aspect-ratio: 4 / 3; }
    .faq-list dt { padding: .55rem .7rem; }
    .faq-list dd { margin-left: .5rem; }
}

@media (max-width: 390px) {
    .wrap,
    .article-layout-wrap { width: min(100% - .75rem, 1360px); }
    .logo-text small { display: none; }
    .logo-mark { font-size: 1rem; padding: .18rem .48rem; }
    .main-nav a,
    .shop-link {
        min-height: 40px;
        font-size: .82rem;
    }
    .card-actions .btn,
    .detail-actions .btn {
        width: 100%;
        flex-basis: 100%;
    }
    .filter-form { padding: .85rem; gap: .7rem; }
    .filter-form select,
    .filter-form input { min-width: 0; width: 100%; }
    .spec-table th,
    .spec-table td { padding: .45rem .55rem; }
    .article-toc-card { padding: .85rem; }
}

/* ── Scenario & product-type icons (product detail) ── */
.scenario-icons {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  align-items: flex-start;
}
.scenario-icon {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: .38rem;
  padding: .3rem .55rem;
  border-radius: 999px;
  background: #f4f8ee;
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: .78rem;
  line-height: 1.2;
}
.scenario-icon img { width: 24px; height: 24px; object-fit: contain; flex: 0 0 auto; }
.scenario-icons--detail { margin-top: .5rem; }
.pdp-scenarios { display: grid; gap: .3rem; }
.pdp-scenarios strong { font-size: .88rem; color: var(--muted); }

/* ═══════════════════════════════════════════════════════════
   品牌绞盘墙
   ═══════════════════════════════════════════════════════════ */
.brand-wall-section { text-align: center; }
.brand-wall-section .section-head { flex-direction: column; align-items: center; gap: .5rem; border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
.brand-wall-section .section-head h2 { font-size: 1.8rem; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; margin: 0; border-bottom: none; display: block; }
.brand-wall-subtitle { max-width: 560px; margin: 1rem auto 2rem; color: var(--text-m); font-size: .95rem; line-height: 1.6; }
.brand-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 2rem 1.5rem; padding: .4rem 0; }
.brand-logo-item { display: flex; align-items: center; justify-content: center; padding: .6rem; border-radius: var(--radius); border: 1px solid var(--border); background: #fff; transition: box-shadow .15s; }
.brand-logo-item:hover { box-shadow: var(--shadow); text-decoration: none; }
.brand-logo-item img { max-width: 100%; max-height: 52px; object-fit: contain; }
.brand-name-item { display: flex; align-items: center; justify-content: center; padding: .8rem .5rem; border-radius: var(--radius); border: 1px solid var(--border); background: #fff; font-size: .88rem; font-weight: 700; color: var(--primary); transition: background .15s, box-shadow .15s; }
.brand-name-item:hover { background: var(--accent-lt); box-shadow: var(--shadow); text-decoration: none; }
@media(max-width:900px) { .brand-wall { grid-template-columns: repeat(4, 1fr); } }
@media(max-width:560px) { .brand-wall { grid-template-columns: repeat(3, 1fr); gap: 1rem; } .brand-wall-section .section-head h2 { font-size: 1.3rem; } }

/* ═══════════════════════════════════════════════════════════
   图文轮播 + 数字荣誉墙
   ═══════════════════════════════════════════════════════════ */
.honor-stats-section { position: relative; z-index: 1; overflow: visible; background: #1a1a1a center/cover no-repeat; padding: 0 0 64px; margin-top: 185px; }
.honor-stats-section::before { content: ''; position: absolute; inset: 0; background: rgba(10,15,20,.52); }
.honor-slider-outer { position: relative; z-index: 2; top: -185px; margin-bottom: -185px; }
.honor-slider-wrap { position: relative; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,.40); width: calc(100% - 10%); margin-left: auto; margin-right: auto; }
.honor-slides { display: flex; will-change: transform; transition: transform .45s cubic-bezier(.4,0,.2,1); }
.honor-slide { min-width: 100%; display: grid; grid-template-columns: 58% 42%; min-height: 370px; }
.honor-slide__img { background: #1a1a1a center/cover no-repeat; }
.honor-slide__body { background: #fff; display: flex; flex-direction: column; justify-content: center; padding: 2.6rem 3rem; }
.honor-slide__body h2 { font-size: clamp(1.1rem,1.9vw,1.5rem); font-weight: 900; text-transform: uppercase; letter-spacing: .04em; margin: 0 0 .75rem; line-height: 1.2; color: var(--text); border-bottom: none; display: block; }
.honor-slide__bar { width: 40px; height: 4px; background: var(--accent); margin-bottom: 1.1rem; border-radius: 2px; }
.honor-slide__body p { color: var(--text-m); margin: 0 0 1.4rem; font-size: .92rem; line-height: 1.72; }
.honor-slide__body a { font-weight: 700; font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text); display: inline-flex; align-items: center; gap: .3em; }
.honor-slide__body a:hover { color: var(--primary); text-decoration: none; }
.honor-slide__arrow { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.15); border: 2px solid rgba(255,255,255,.38); cursor: pointer; width: 40px; height: 40px; border-radius: 50%; font-size: 1.4rem; line-height: 1; display: flex; align-items: center; justify-content: center; z-index: 3; transition: background .15s, border-color .15s; color: #fff; }
.honor-slide__arrow:hover { background: rgba(255,255,255,.30); border-color: rgba(255,255,255,.7); }
.honor-slide__arrow--prev { left: 1rem; }
.honor-slide__arrow--next { right: 1rem; }
.honor-dots { display: flex; justify-content: center; align-items: center; gap: 8px; padding: 22px 0 30px; position: relative; z-index: 1; }
.honor-dot { width: 28px; height: 4px; border-radius: 2px; border: none; background: rgba(255,255,255,.30); cursor: pointer; transition: background .2s, width .2s; padding: 0; }
.honor-dot.is-active { background: var(--accent); width: 44px; }
.stats-wall__inner { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; text-align: center; }
.stats-item__num { font-size: clamp(2.6rem,5vw,4rem); font-weight: 900; color: #fff; line-height: 1; }
.stats-item__bar { width: 36px; height: 3px; background: var(--accent); margin: .6rem auto .7rem; border-radius: 2px; }
.stats-item__label { color: rgba(255,255,255,.75); font-size: .88rem; letter-spacing: .04em; }
@media(max-width:900px) {
  .honor-slide__arrow { background: rgba(255,255,255,.70); color: var(--text); border-color: transparent; }
  .honor-slide__arrow:hover { background: #fff; }
}
@media(max-width:680px) {
  .honor-slide { grid-template-columns: 1fr; min-height: auto; }
  .honor-slide__img { min-height: 220px; }
  .honor-slide__body { padding: 1.6rem 1.5rem; }
  .honor-stats-section { padding: 0 0 52px; margin-top: 150px; }
}

/* ═══════════════════════════════════════════════════════════
   产品卡片区底部备注（tech-intro-notes）
   ═══════════════════════════════════════════════════════════ */
.tech-intro-notes { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--border); }
/* -- Hero 场景快捷链接 -- */
.hero-scenario-links { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.2rem; }
.hero-scenario-chip { display: inline-flex; align-items: center; gap: .38rem; padding: .3rem .65rem; border-radius: 999px; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.30); color: #fff; font-size: .82rem; text-decoration: none; transition: background .15s, border-color .15s; }
.hero-scenario-chip:hover { background: rgba(255,255,255,.28); border-color: rgba(255,255,255,.55); color: #fff; text-decoration: none; }
.hero-scenario-chip img { width: 20px; height: 20px; object-fit: contain; flex: 0 0 auto; filter: brightness(0) invert(1); }