/* ================================================================
   BD WEB TEK — Single Post Stylesheet
   Enqueued only on single post pages (is_single).
   Header and footer styles are already in the global stylesheet.
   ================================================================ */

/* ── CSS VARIABLES ── */
:root {
  --sp-bg:         #FAFAF8;
  --sp-bg-card:    #FFFFFF;
  --sp-bg-subtle:  #F3F2EF;
  --sp-bg-dark:    #0D1621;
  --sp-bg-dark2:   #111E2E;
  --sp-line:       #E6E4DF;
  --sp-line2:      #D0CEC9;
  --sp-ink:        #0D1621;
  --sp-ink2:       #2C3A4A;
  --sp-muted:      #6C7A89;
  --sp-ghost:      #A8B2BC;
  --sp-blue:       #1060D4;
  --sp-blue-bg:    #EEF3FD;
  --sp-teal:       #007A65;
  --sp-teal-bg:    #E8F5F2;
  --sp-purple:     #5B3FBF;
  --sp-purple-bg:  #F0ECFB;
  --sp-amber:      #9A5A00;
  --sp-amber-bg:   #FDF3E4;
  --sp-red:        #C0222A;
  --sp-red-bg:     #FDECEA;
  --sp-wp:         #3858E9;
  --sp-wp-bg:      #EEF0FE;
  --sp-seo:        #0F766E;
  --sp-seo-bg:     #CCFBF1;
  --sp-geo:        #7C3AED;
  --sp-geo-bg:     #EDE9FE;
}

/* ── PAGE BODY ── */
body.bdwt-single-post {
  background: var(--sp-bg);
  color: var(--sp-ink);
  font-family: 'Noto Sans SC', sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── TAG PILLS ── */
.bdwt-sp-tag {
  display: inline-flex;
  align-items: center;
  font-family: 'DM Mono', monospace;
  font-size: .58rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  font-weight: 500;
  white-space: nowrap;
}
.bdwt-sp-t-elementor { color: #92003B; background: #FDE8F0; }
.bdwt-sp-t-wp        { color: var(--sp-wp);     background: var(--sp-wp-bg); }
.bdwt-sp-t-blue      { color: var(--sp-blue);   background: var(--sp-blue-bg); }
.bdwt-sp-t-teal      { color: var(--sp-teal);   background: var(--sp-teal-bg); }
.bdwt-sp-t-red       { color: var(--sp-red);    background: var(--sp-red-bg); }
.bdwt-sp-t-amber     { color: var(--sp-amber);  background: var(--sp-amber-bg); }
.bdwt-sp-t-purple    { color: var(--sp-purple); background: var(--sp-purple-bg); }
.bdwt-sp-t-seo       { color: var(--sp-seo);    background: var(--sp-seo-bg); }
.bdwt-sp-t-geo       { color: var(--sp-geo);    background: var(--sp-geo-bg); }

/* Tags render on dark hero background — boost brightness slightly */
.bdwt-sp-tags .bdwt-sp-tag { filter: brightness(1.12); }

/* ── TEXT SELECTION — dark sections ── */
.bdwt-sp-hero ::selection,
.bdwt-sp-subscribe ::selection,
.bdwt-sp-toc-head ::selection,
.bdwt-sp-related-head ::selection,
.bdwt-sp-article pre ::selection {
  background: rgba(56, 88, 233, .45);
  color: #F0F4FF;
}

/* ── HERO ── */
.bdwt-sp-hero {
  background: var(--sp-bg-dark);
  padding: 2.5rem 2rem 2.8rem;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--sp-wp);
}
.bdwt-sp-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(56,88,233,.06) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}
.bdwt-sp-hero-glow {
  position: absolute;
  top: -120px;
  right: -60px;
  width: 500px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(56,88,233,.1) 0%, transparent 65%);
  pointer-events: none;
}
.bdwt-sp-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.bdwt-sp-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  color: #6B7FA8;
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.bdwt-sp-breadcrumb a {
  color: #C8D4E8;
  transition: color .2s;
}
.bdwt-sp-breadcrumb a:hover { color: #F0F4FF; }
.bdwt-sp-breadcrumb > span:last-child { color: #C8D4E8; }
.bdwt-sp-bc-sep { color: #4A5A78; }
.bdwt-sp-tags {
  display: flex;
  gap: .45rem;
  flex-wrap: wrap;
  margin-bottom: .9rem;
}
.bdwt-sp-title {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  letter-spacing: -.025em;
  line-height: 1.18;
  color: #F0F4FF;
  margin: 0 0 .9rem;
  max-width: 860px;
}
.bdwt-sp-excerpt {
  font-size: .9rem;
  color: #C8D4E8;
  line-height: 1.75;
  max-width: 700px;
  margin: 0 0 1.1rem;
}
.bdwt-sp-meta {
  display: flex;
  align-items: center;
  gap: .65rem;
  flex-wrap: wrap;
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  color: #C8D4E8;
}
.bdwt-sp-author  { color: #F0F4FF; font-weight: 500; }
.bdwt-sp-sep     { color: #7A8DA8; }
.bdwt-sp-readtime {
  background: rgba(96,165,250,.18);
  color: #DBEAFE;
  border: 1px solid rgba(147,197,253,.35);
  padding: 2px 8px;
  border-radius: 6px;
}

/* ── PAGE LAYOUT ── */
#bdwt-single-wrap { background: var(--sp-bg); }

.bdwt-sp-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.bdwt-sp-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 3.5rem;
  padding: 3rem 0 5rem;
  align-items: start;
}

/* ── ARTICLE BODY ── */
.bdwt-sp-article { min-width: 0; }

.bdwt-sp-entry-excerpt {
  border: 1px solid var(--sp-line2);
  border-left: 3px solid var(--sp-blue);
  border-radius: 8px;
  padding: 1.1rem 1.4rem;
  margin: 0 0 1.5rem;
}
.bdwt-sp-entry-excerpt p {
  font-size: .9rem;
  color: var(--sp-ink2);
  line-height: 1.72;
  margin: 0;
}

.bdwt-sp-featured-image {
  margin: 0 0 2rem;
  overflow: hidden;
  border-radius: 10px;
  background: var(--sp-bg-subtle);
  border: 1px solid var(--sp-line);
}
.bdwt-sp-featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

.bdwt-sp-article h2 {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -.02em;
  color: var(--sp-ink);
  margin: 2.5rem 0 .9rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--sp-line);
  scroll-margin-top: 80px;
}
.bdwt-sp-article h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}
.bdwt-sp-article h3 {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -.015em;
  color: var(--sp-ink);
  margin: 1.8rem 0 .7rem;
  scroll-margin-top: 80px;
}
.bdwt-sp-article h4 {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 600;
  font-size: .95rem;
  color: var(--sp-ink2);
  margin: 1.4rem 0 .5rem;
  scroll-margin-top: 80px;
}
.bdwt-sp-article p {
  font-size: .93rem;
  color: var(--sp-ink2);
  line-height: 1.85;
  margin-bottom: 1rem;
}
.bdwt-sp-article p:last-child { margin-bottom: 0; }

.bdwt-sp-article a {
  color: var(--sp-blue);
  border-bottom: 1px solid rgba(16,96,212,.25);
  text-decoration: none;
  transition: border-color .15s;
}
.bdwt-sp-article a:hover { border-color: var(--sp-blue); }

.bdwt-sp-article strong { color: var(--sp-ink); font-weight: 600; }
.bdwt-sp-article em     { font-style: italic; }

.bdwt-sp-article ul {
  list-style: none;
  padding-left: .2rem;
  margin: 1rem 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.bdwt-sp-article ul li {
  font-size: .92rem;
  color: var(--sp-ink2);
  line-height: 1.72;
  padding-left: 1.3rem;
  position: relative;
}
.bdwt-sp-article ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .65em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--sp-ink2);
}
.bdwt-sp-article ol {
  padding-left: 1.6rem;
  margin: 1rem 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.bdwt-sp-article ol li {
  font-size: .92rem;
  color: var(--sp-ink2);
  line-height: 1.72;
  padding-left: .3rem;
}

.bdwt-sp-article code {
  font-family: 'DM Mono', monospace;
  font-size: .82rem;
  background: var(--sp-bg-subtle);
  color: var(--sp-ink2);
  border: 1px solid var(--sp-line2);
  border-radius: 4px;
  padding: 1px 5px;
}
.bdwt-sp-article pre {
  background: var(--sp-bg-dark);
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  margin: 1.5rem 0;
  overflow-x: auto;
}
.bdwt-sp-article pre code {
  background: none;
  border: none;
  padding: 0;
  color: #C8D4E8;
  font-size: .83rem;
  line-height: 1.7;
}

.bdwt-sp-article img {
  display: block;
  max-width: 100%;
  height: auto;
}
.bdwt-sp-article figure {
  max-width: 100%;
  margin: 1.4rem 0;
  overflow: hidden;
}
.bdwt-sp-article .article-image img {
  border-radius: 8px;
}

.bdwt-sp-article .code-copy-wrap {
  position: relative;
  max-width: 100%;
  margin: 1.5rem 0;
  overflow: hidden;
}
.bdwt-sp-article .code-copy-wrap pre {
  margin: 0;
  padding-right: 4.2rem;
}
.bdwt-sp-article .code-copy-btn {
  position: absolute;
  top: .55rem;
  right: .55rem;
  z-index: 2;
  padding: .32rem .55rem;
  border-radius: 5px;
  background: var(--sp-bg-dark2);
  color: #C8D4E8;
  border: 1px solid #1E2F40;
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  letter-spacing: .06em;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.bdwt-sp-article .code-copy-btn:hover {
  color: #F0F4FF;
  border-color: #60A5FA;
}

.bdwt-sp-article hr {
  border: none;
  height: 1px;
  background: var(--sp-line);
  margin: 2.5rem 0;
}

/* ── CONTENT COMPONENTS (author can use these class names in editor) ── */

/* Highlight / key-takeaway box */
.bdwt-sp-article .highlight-box {
  background: var(--sp-blue-bg);
  border-left: 3px solid var(--sp-blue);
  border-radius: 0 8px 8px 0;
  padding: 1.1rem 1.4rem;
  margin: 1.5rem 0;
}
.bdwt-sp-article .highlight-box p {
  font-size: .88rem;
  color: #1E3A70;
  margin: 0;
  line-height: 1.72;
}
.bdwt-sp-article .highlight-box strong { color: #0D2A5E; }

/* Warning / note box */
.bdwt-sp-article .note-box {
  background: var(--sp-amber-bg);
  border-left: 3px solid var(--sp-amber);
  border-radius: 0 8px 8px 0;
  padding: 1.1rem 1.4rem;
  margin: 1.5rem 0;
}
.bdwt-sp-article .note-box p {
  font-size: .88rem;
  color: #5A3A00;
  margin: 0;
  line-height: 1.72;
}
.bdwt-sp-article .note-box strong { color: #3A2000; }

/* Tip box */
.bdwt-sp-article .tip-box {
  background: var(--sp-teal-bg);
  border-left: 3px solid var(--sp-teal);
  border-radius: 0 8px 8px 0;
  padding: 1.1rem 1.4rem;
  margin: 1.5rem 0;
}
.bdwt-sp-article .tip-box p {
  font-size: .88rem;
  color: #004A3A;
  margin: 0;
  line-height: 1.72;
}
.bdwt-sp-article .tip-box strong { color: #003028; }

.bdwt-sp-article .highlight-box p + p,
.bdwt-sp-article .note-box p + p,
.bdwt-sp-article .tip-box p + p {
  margin-top: .75rem;
}

/* Box label (used inside highlight/note/tip boxes) */
.bdwt-sp-article .box-label {
  font-family: 'DM Mono', monospace;
  font-size: .58rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-weight: 500;
  display: block;
  margin-bottom: .4rem;
}
.bdwt-sp-article .lbl-blue  { color: var(--sp-blue); }
.bdwt-sp-article .lbl-amber { color: var(--sp-amber); }
.bdwt-sp-article .lbl-teal  { color: var(--sp-teal); }

/* Pull quote / blockquote */
.bdwt-sp-article .pull-quote,
.bdwt-sp-article blockquote {
  margin: 2rem 0;
  padding: 1.6rem 2rem;
  border-left: 4px solid var(--sp-ink);
  background: var(--sp-bg-subtle);
  border-radius: 0 8px 8px 0;
}
.bdwt-sp-article .pull-quote p,
.bdwt-sp-article blockquote p {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--sp-ink);
  line-height: 1.55;
  margin-bottom: .4rem;
  font-style: italic;
}
.bdwt-sp-article .pull-quote cite,
.bdwt-sp-article blockquote cite {
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  color: var(--sp-ghost);
  font-style: normal;
}

/* VS comparison table */
.bdwt-sp-article table,
.bdwt-sp-article .vs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: .86rem;
}
.bdwt-sp-article table thead tr { background: var(--sp-ink); color: #F0F4FF; }
.bdwt-sp-article table thead th {
  padding: .75rem 1rem;
  text-align: left;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .04em;
}
.bdwt-sp-article table thead th:first-child { border-radius: 6px 0 0 0; }
.bdwt-sp-article table thead th:last-child  { border-radius: 0 6px 0 0; }
.bdwt-sp-article .col-highlight             { background: var(--sp-wp) !important; }
.bdwt-sp-article table tbody tr             { border-bottom: 1px solid var(--sp-line); }
.bdwt-sp-article table tbody tr:last-child  { border-bottom: none; }
.bdwt-sp-article table tbody tr:nth-child(even) { background: var(--sp-bg-subtle); }
.bdwt-sp-article table tbody tr:hover td   { background: var(--sp-wp-bg); }
.bdwt-sp-article table tbody td {
  padding: .7rem 1rem;
  color: var(--sp-ink2);
  vertical-align: top;
  line-height: 1.55;
}
.bdwt-sp-article table tbody td:first-child {
  color: var(--sp-ink);
  font-weight: 500;
  font-size: .84rem;
}

/* Value badges inside tables */
.val-yes  { color: var(--sp-teal); font-weight: 600; }
.val-no   { color: var(--sp-red); }
.val-part { color: var(--sp-amber); }
.val-best {
  display: inline-block;
  background: var(--sp-teal-bg);
  color: var(--sp-teal);
  font-family: 'DM Mono', monospace;
  font-size: .58rem;
  letter-spacing: .08em;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 500;
}

/* ── SUBSCRIBE CTA ── */
.bdwt-sp-subscribe {
  background: var(--sp-ink);
  border-radius: 12px;
  padding: 2.5rem;
  margin-top: 3rem;
  position: relative;
  overflow: hidden;
}
.bdwt-sp-subscribe::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 0% 50%, rgba(56,88,233,.12) 0%, transparent 55%);
  pointer-events: none;
}
.bdwt-sp-sub-title {
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: #F0F4FF;
  margin: 0 0 .5rem;
  position: relative;
  z-index: 1;
}
.bdwt-sp-subscribe .bdwt-sp-sub-body {
  font-size: .83rem;
  color: #C8D4E8;
  line-height: 1.7;
  margin: 0 0 1.4rem;
  position: relative;
  z-index: 1;
  max-width: 480px;
}
.bdwt-sp-sub-form {
  display: flex;
  gap: 0;
  position: relative;
  z-index: 1;
  max-width: 480px;
}
.bdwt-sp-sub-form input {
  flex: 1;
  background: #111E2E;
  border: 1px solid #1E2F40;
  border-right: none;
  border-radius: 7px 0 0 7px;
  padding: .8rem 1rem;
  font-size: .85rem;
  color: #F0F4FF;
  font-family: 'Noto Sans SC', sans-serif;
  outline: none;
  transition: border-color .15s;
}
.bdwt-sp-sub-form input:focus       { border-color: #60A5FA; }
.bdwt-sp-sub-form input::placeholder { color: #4A5A78; }
.bdwt-sp-sub-form button {
  background: #60A5FA;
  color: #fff;
  padding: 0 1.4rem;
  font-size: .78rem;
  font-weight: 700;
  font-family: 'Noto Sans SC', sans-serif;
  letter-spacing: .05em;
  border-radius: 0 7px 7px 0;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  transition: background .15s;
}
.bdwt-sp-sub-form button:hover { background: #93C5FD; }
/* ── 自定义作者框 ── */
.bdwt-sp-author-box {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
  padding: 1.15rem 1.25rem;
  background: var(--sp-bg-card);
  border: 1px solid var(--sp-line);
  border-radius: 12px;
}
.bdwt-sp-author-avatar {
  width: 100px;
  height: 100px;
  flex: 0 0 100px;
  display: block;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--sp-line);
}
.bdwt-sp-author-copy { min-width: 0; }
.bdwt-sp-author-name {
  color: var(--sp-ink);
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.25;
}
.bdwt-sp-author-role {
  margin-top: .15rem;
  color: var(--sp-wp);
  font-family: 'DM Mono', monospace;
  font-size: .62rem;
  letter-spacing: .05em;
}
.bdwt-sp-author-bio {
  max-width: 640px;
  margin: .55rem 0 0;
  color: var(--sp-muted);
  font-size: .78rem;
  line-height: 1.7;
}

/* ── SIDEBAR ── */
.bdwt-sp-sidebar {
  min-width: 0;
  position: sticky;
  top: 80px;
  align-self: start;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  scrollbar-width: none;
}
.bdwt-sp-sidebar::-webkit-scrollbar { display: none; }
.bdwt-sp-sticky { display: flex; flex-direction: column; gap: 1.5rem; }

/* ── TABLE OF CONTENTS ── */
.bdwt-sp-toc {
  background: var(--sp-bg-card);
  border: 1px solid var(--sp-line);
  border-radius: 10px;
  overflow: hidden;
}
.bdwt-sp-toc-head {
  background: var(--sp-bg-dark);
  padding: .65rem 1rem;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #C8D4E8;
}
.bdwt-sp-toc-body { padding: .8rem 1rem; }

.bdwt-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.bdwt-toc-item { display: flex; flex-direction: column; }
.bdwt-toc-item > a {
  font-size: .8rem;
  color: var(--sp-ink2);
  font-weight: 500;
  padding: .38rem 0;
  border-bottom: 1px solid var(--sp-line);
  display: flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  transition: color .15s;
  line-height: 1.35;
}
.bdwt-toc-item:last-child > a { border-bottom: none; }
.bdwt-toc-item > a:hover  { color: var(--sp-wp); }
.bdwt-toc-item > a.active { color: var(--sp-wp); font-weight: 600; }
.bdwt-toc-num {
  font-family: 'DM Mono', monospace;
  font-size: .6rem;
  color: var(--sp-ghost);
  flex-shrink: 0;
}

.bdwt-toc-sub {
  list-style: none;
  padding: 0 0 0 1.1rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.bdwt-toc-sub a {
  font-size: .75rem;
  color: var(--sp-muted);
  padding: .3rem 0;
  border-bottom: 1px solid rgba(230,228,223,.5);
  display: block;
  text-decoration: none;
  transition: color .15s;
  line-height: 1.35;
}
.bdwt-toc-sub li:last-child a { border-bottom: none; }
.bdwt-toc-sub a:hover,
.bdwt-toc-sub a.active       { color: var(--sp-wp); }

.bdwt-sp-toc-progress {
  height: 2px;
  background: var(--sp-line);
  margin-top: .8rem;
  border-radius: 2px;
  overflow: hidden;
}
.bdwt-sp-progress-fill {
  height: 100%;
  background: var(--sp-wp);
  border-radius: 2px;
  width: 0%;
  transition: width .2s ease;
}

/* ── RELATED ARTICLES ── */
.bdwt-sp-related {
  background: var(--sp-bg-card);
  border: 1px solid var(--sp-line);
  border-radius: 10px;
  overflow: hidden;
}
.bdwt-sp-related-head {
  background: var(--sp-bg-dark);
  padding: .65rem 1rem;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #C8D4E8;
}
.bdwt-sp-ri {
  display: flex;
  gap: .8rem;
  align-items: flex-start;
  padding: .82rem 1rem;
  border-bottom: 1px solid var(--sp-line);
  text-decoration: none;
  color: inherit;
  transition: background .12s;
}
.bdwt-sp-ri:last-child { border-bottom: none; }
.bdwt-sp-ri:hover { background: var(--sp-bg-subtle); }
.bdwt-sp-ri:hover .bdwt-sp-ri-title { color: var(--sp-wp); }
.bdwt-sp-ri-thumb {
  width: 56px;
  height: 44px;
  border-radius: 5px;
  flex-shrink: 0;
  background-color: var(--sp-wp-bg);
  border: 1px solid var(--sp-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  color: var(--sp-wp);
  overflow: hidden;
}
.bdwt-sp-ri-title {
  font-size: .79rem;
  font-weight: 600;
  color: var(--sp-ink2);
  line-height: 1.35;
  transition: color .15s;
}
.bdwt-sp-ri-meta {
  font-family: 'DM Mono', monospace;
  font-size: .58rem;
  color: var(--sp-ghost);
  margin-top: 3px;
}

/* ── SHARE BOX ── */
.bdwt-sp-share {
  background: var(--sp-bg-card);
  border: 1px solid var(--sp-line);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
}
.bdwt-sp-share-label {
  font-family: 'DM Mono', monospace;
  font-size: .6rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sp-ink2);
}
.bdwt-sp-share-btns {
  display: flex;
  gap: .55rem;
}
.bdwt-sp-share-btn {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--sp-line);
  color: var(--sp-muted);
  background: var(--sp-bg-subtle);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .15s;
}
.bdwt-sp-share-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  display: block;
}
.bdwt-sp-share-btn:hover {
  border-color: var(--sp-wp);
  color: var(--sp-wp);
  background: var(--sp-wp-bg);
}
.bdwt-sp-share-btn.is-copied {
  border-color: var(--sp-teal);
  color: var(--sp-teal);
  background: var(--sp-teal-bg);
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .bdwt-sp-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .bdwt-sp-sidebar {
    position: static;
    margin-top: 3rem;
    max-height: none;
    overflow-y: visible;
  }
  .bdwt-sp-sticky {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
  }
  .bdwt-sp-toc { grid-column: 1 / -1; }
  .bdwt-sp-page { padding: 0 1.5rem; }
  .bdwt-sp-hero { padding: 2.2rem 1.5rem 2.5rem; }
}

@media (max-width: 768px) {
  .bdwt-sp-page    { padding: 0 1rem; }
  .bdwt-sp-hero    { padding: 1.8rem 1rem 2.2rem; }
  .bdwt-sp-title   { font-size: 1.3rem; }
  .bdwt-sp-excerpt { font-size: .84rem; }
  .bdwt-sp-layout  { padding: 2rem 0 4rem; }
  .bdwt-sp-sticky  { grid-template-columns: 1fr; margin-top: 1.5rem; }

  .bdwt-sp-article h2 { font-size: 1.2rem; margin-top: 2rem; padding-top: 2rem; }
  .bdwt-sp-article h3 { font-size: 1rem; }
  .bdwt-sp-article table { display: block; overflow-x: auto; }

  .bdwt-sp-sub-form { flex-direction: column; }
  .bdwt-sp-sub-form input {
    border-right: 1px solid #1E2F40;
    border-radius: 7px;
  }
  .bdwt-sp-sub-form button { border-radius: 7px; padding: .8rem; }
  .bdwt-sp-author-box { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .bdwt-sp-page { padding: 0 .9rem; }
  .bdwt-sp-hero { padding: 1.5rem .9rem 2rem; }
}

/* ================================================================
   BD WEB TEK — Blog Visual Widget Library (40 components)
   Scoped under .bdwt-sp-article, reuses --sp-* tokens from above.
   Source design file: 品牌视觉设计/网页模版/技术博客可视化组件库/index.html
   ================================================================ */

/* 1. EMPHASIS & CALLOUTS */
.bdwt-sp-article .comp-box h5,
.bdwt-sp-article .comp-key-takeaway h5,
.bdwt-sp-article .pc-box h5,
.bdwt-sp-article .case-box h6 { margin-top: 0; }
.bdwt-sp-article .comp-highlight{background:rgba(16,96,212,0.08);color:var(--sp-blue);padding:2px 8px;border-radius:4px;font-weight:600}
.bdwt-sp-article .comp-key-takeaway{background:rgba(0,122,101,0.06);border:1px solid rgba(0,122,101,0.25);border-left:4.5px solid var(--sp-teal);border-radius:10px;padding:1.4rem 1.6rem;margin:1.5rem 0}
.bdwt-sp-article .comp-key-takeaway h5{font-family:'DM Mono',monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--sp-teal);margin-bottom:6px;display:flex;align-items:center;gap:6px}
.bdwt-sp-article .comp-key-takeaway p{font-size:.92rem;font-weight:600;color:var(--sp-ink);line-height:1.65;margin:0}

.bdwt-sp-article .comp-box{border-radius:10px;padding:1.3rem 1.5rem;margin:1.5rem 0;font-size:.88rem;line-height:1.7}
.bdwt-sp-article .comp-box h5{font-weight:700;font-size:.95rem;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.bdwt-sp-article .comp-box p{margin:0}
.bdwt-sp-article .comp-info{background:rgba(16,96,212,.05);border:1px solid rgba(16,96,212,.18);color:var(--sp-ink)}
.bdwt-sp-article .comp-info h5{color:var(--sp-blue)}
.bdwt-sp-article .comp-tip{background:rgba(0,122,101,.05);border:1px solid rgba(0,122,101,.18);color:var(--sp-ink)}
.bdwt-sp-article .comp-tip h5{color:var(--sp-teal)}
.bdwt-sp-article .comp-warning{background:rgba(154,90,0,.06);border:1px solid rgba(154,90,0,.22);color:var(--sp-ink)}
.bdwt-sp-article .comp-warning h5{color:var(--sp-amber)}
.bdwt-sp-article .comp-mistake{background:rgba(192,34,42,.05);border:1px solid rgba(192,34,42,.2);color:var(--sp-ink)}
.bdwt-sp-article .comp-mistake h5{color:var(--sp-red)}

/* 2. FLOW & RELATIONSHIP */
.bdwt-sp-article .comp-flow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:1.2rem;background:var(--sp-bg-subtle);border-radius:10px;border:1px solid var(--sp-line);margin:1.5rem 0}
.bdwt-sp-article .flow-step{background:var(--sp-bg-card);border:1px solid var(--sp-line2);padding:.6rem 1rem;border-radius:7px;font-size:.85rem;font-weight:600;color:var(--sp-ink)}
.bdwt-sp-article .flow-arrow{color:var(--sp-muted);font-weight:700;font-family:'DM Mono',monospace}

.bdwt-sp-article .comp-arch-svg{width:100%;max-width:640px;margin:1.5rem auto;display:block;background:var(--sp-bg-subtle);border-radius:12px;padding:1.5rem;border:1px solid var(--sp-line)}

.bdwt-sp-article .comp-dataflow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:12px;align-items:center;padding:1.5rem;background:var(--sp-bg-subtle);border-radius:12px;border:1px solid var(--sp-line);margin:1.5rem 0}
.bdwt-sp-article .df-box{background:var(--sp-bg-card);border:1px solid var(--sp-line2);padding:1rem;border-radius:8px;text-align:center;font-size:.83rem;font-weight:600;color:var(--sp-ink)}
.bdwt-sp-article .df-tag{font-family:'DM Mono',monospace;font-size:.65rem;color:var(--sp-blue);display:block;margin-bottom:4px}

.bdwt-sp-article .comp-decision{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;padding:1.5rem;background:var(--sp-bg-subtle);border-radius:12px;border:1px solid var(--sp-line);margin:1.5rem 0}
.bdwt-sp-article .dec-branch{background:var(--sp-bg-card);border:1px solid var(--sp-line2);border-radius:10px;padding:1.2rem}
.bdwt-sp-article .dec-tag{font-family:'DM Mono',monospace;font-size:.65rem;padding:2px 8px;border-radius:4px;margin-bottom:8px;display:inline-block;font-weight:700}
.bdwt-sp-article .dec-tag.yes{background:rgba(0,122,101,.1);color:var(--sp-teal)}
.bdwt-sp-article .dec-tag.no{background:rgba(192,34,42,.1);color:var(--sp-red)}

.bdwt-sp-article .comp-lifecycle{display:flex;align-items:center;justify-content:space-between;padding:1.4rem;background:var(--sp-bg-subtle);border-radius:12px;border:1px solid var(--sp-line);gap:8px;flex-wrap:wrap;margin:1.5rem 0}
.bdwt-sp-article .lc-node{background:var(--sp-bg-card);border:1px solid var(--sp-line2);padding:.6rem .9rem;border-radius:6px;font-size:.8rem;font-weight:700;text-align:center;flex:1;min-width:110px}

/* 3. COMPARE & CHOICE */
.bdwt-sp-article .table-wrapper{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.bdwt-sp-article .comp-table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.88rem;min-width:560px}
.bdwt-sp-article .comp-table th,.bdwt-sp-article .comp-table td{padding:.9rem 1.1rem;border:1px solid var(--sp-line);text-align:left}
.bdwt-sp-article .comp-table th{background:var(--sp-bg-subtle);font-family:'DM Mono',monospace;font-size:.75rem;color:var(--sp-ink);letter-spacing:.05em}

.bdwt-sp-article .comp-avsb{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:1.5rem 0}
.bdwt-sp-article .avsb-card{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.4rem}
.bdwt-sp-article .avsb-card.badge-a{border-top:3.5px solid var(--sp-blue)}
.bdwt-sp-article .avsb-card.badge-b{border-top:3.5px solid var(--sp-teal)}
.bdwt-sp-article .avsb-title{font-size:1.05rem;font-weight:700;color:var(--sp-ink);margin-bottom:.6rem}

.bdwt-sp-article .comp-before-after{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:1.5rem 0}
.bdwt-sp-article .ba-box{border-radius:10px;padding:1.4rem;border:1px solid var(--sp-line)}
.bdwt-sp-article .ba-before{background:rgba(192,34,42,.03);border-color:rgba(192,34,42,.2)}
.bdwt-sp-article .ba-after{background:rgba(0,122,101,.03);border-color:rgba(0,122,101,.2)}
.bdwt-sp-article .ba-tag{font-family:'DM Mono',monospace;font-size:.68rem;font-weight:700;margin-bottom:.5rem;text-transform:uppercase}

.bdwt-sp-article .comp-pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:1.5rem 0}
.bdwt-sp-article .pc-box{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.4rem}
.bdwt-sp-article .pc-box h5{font-size:.95rem;font-weight:700;margin-bottom:.8rem}
.bdwt-sp-article .pc-list{list-style:none;display:flex;flex-direction:column;gap:8px;font-size:.85rem;color:var(--sp-ink);margin:0;padding:0}

.bdwt-sp-article .comp-options{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin:1.5rem 0}
.bdwt-sp-article .opt-card{background:var(--sp-bg-card);border:1px solid var(--sp-line);border-radius:10px;padding:1.4rem;position:relative}
.bdwt-sp-article .opt-card.rec{border-color:var(--sp-blue);box-shadow:0 4px 18px rgba(16,96,212,.12)}
.bdwt-sp-article .opt-badge{font-family:'DM Mono',monospace;font-size:.62rem;padding:2px 6px;border-radius:3px;background:rgba(16,96,212,.1);color:var(--sp-blue);position:absolute;top:1rem;right:1rem;font-weight:700}

/* 4. DATA VISUALIZATION */
.bdwt-sp-article .comp-kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:1.5rem 0}
.bdwt-sp-article .kpi-card{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.2rem;text-align:center}
.bdwt-sp-article .kpi-num{font-family:'DM Mono',monospace;font-size:1.7rem;font-weight:800;color:var(--sp-ink);margin-bottom:4px}
.bdwt-sp-article .kpi-num em{color:var(--sp-teal);font-style:normal}
.bdwt-sp-article .kpi-label{font-size:.72rem;color:var(--sp-muted)}
.bdwt-sp-article .kpi-change{font-family:'DM Mono',monospace;font-size:.68rem;color:var(--sp-teal);font-weight:700;margin-top:4px}

.bdwt-sp-article .comp-funnel{display:flex;flex-direction:column;gap:6px;max-width:540px;margin:1.5rem auto}
.bdwt-sp-article .funnel-stage{background:var(--sp-blue);color:#fff;padding:.7rem 1.2rem;border-radius:6px;text-align:center;font-weight:700;font-size:.85rem;margin:0 auto}

.bdwt-sp-article .comp-timeline{display:flex;flex-direction:column;gap:1.2rem;border-left:2px solid var(--sp-blue);padding-left:1.5rem;margin:1.5rem 0 1.5rem .8rem}
.bdwt-sp-article .tl-item{position:relative}
.bdwt-sp-article .tl-item::before{content:'';position:absolute;left:-1.95rem;top:4px;width:12px;height:12px;border-radius:50%;background:var(--sp-blue);border:3px solid var(--sp-bg-card)}
.bdwt-sp-article .tl-date{font-family:'DM Mono',monospace;font-size:.7rem;color:var(--sp-blue);font-weight:700}
.bdwt-sp-article .tl-title{font-size:.95rem;font-weight:700;color:var(--sp-ink);margin:2px 0}

.bdwt-sp-article .comp-heatmap{display:grid;grid-template-columns:120px repeat(4,1fr);gap:6px;padding:1.2rem;background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;font-size:.8rem;text-align:center;margin:1.5rem 0}
.bdwt-sp-article .hm-cell{padding:.6rem .4rem;border-radius:5px;font-weight:700;font-family:'DM Mono',monospace}

.bdwt-sp-article .comp-spark-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin:1.5rem 0}
.bdwt-sp-article .spark-card{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.2rem;display:flex;align-items:center;justify-content:space-between}

/* 5. TECHNICAL & CODE (self-contained dark palette, not theme tokens) */
.bdwt-sp-article .comp-code{background:#080E18;border:1px solid #1A2640;border-radius:10px;overflow:hidden;color:#F0F4FF;font-family:'DM Mono',monospace;font-size:.82rem;margin:1.5rem 0}
.bdwt-sp-article .code-bar{height:38px;background:#03060B;border-bottom:1px solid #1A2640;display:flex;align-items:center;justify-content:space-between;padding:0 1rem}
.bdwt-sp-article .code-file{font-size:.72rem;color:#6B7FA8}
.bdwt-sp-article .comp-code .code-body{padding:1.2rem;overflow-x:auto;line-height:1.7}
.bdwt-sp-article .code-hl{background:rgba(30,123,255,.18);display:block;margin:0 -1.2rem;padding:0 1.2rem;border-left:3px solid #1E7BFF}

.bdwt-sp-article .comp-good-bad{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin:1.5rem 0}
.bdwt-sp-article .gb-box{border-radius:10px;overflow:hidden;border:1px solid var(--sp-line);font-family:'DM Mono',monospace;font-size:.8rem}
.bdwt-sp-article .gb-head{padding:.5rem 1rem;font-weight:700;font-size:.75rem;color:#fff}
.bdwt-sp-article .gb-head.bad{background:var(--sp-red)}
.bdwt-sp-article .gb-head.good{background:var(--sp-teal)}
.bdwt-sp-article .gb-body{padding:1rem;background:#080E18;color:#F0F4FF}

.bdwt-sp-article .comp-terminal{background:#03060B;border:1px solid #1A2640;border-radius:10px;padding:1.2rem;color:#00C8A8;font-family:'DM Mono',monospace;font-size:.82rem;margin:1.5rem 0}
.bdwt-sp-article .term-prompt{color:#6B7FA8;user-select:none}
.bdwt-sp-article .term-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:.8rem;padding-bottom:.6rem;border-bottom:1px solid #1A2640}
.bdwt-sp-article .term-title{font-size:.72rem;color:#6B7FA8;font-family:'DM Mono',monospace;text-transform:uppercase;letter-spacing:.08em}

.bdwt-sp-article .comp-tree{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.2rem;font-family:'DM Mono',monospace;font-size:.82rem;color:var(--sp-ink);line-height:1.8;margin:1.5rem 0}

.bdwt-sp-article .comp-api-reqres{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin:1.5rem 0}
.bdwt-sp-article .api-box{background:#080E18;border:1px solid #1A2640;border-radius:10px;padding:1.2rem;font-family:'DM Mono',monospace;font-size:.8rem;color:#F0F4FF}
.bdwt-sp-article .api-box pre{margin:0;white-space:pre-wrap;word-break:break-word}
.bdwt-sp-article .api-head{font-size:.7rem;color:#6B7FA8;margin-bottom:8px;text-transform:uppercase;letter-spacing:.1em}
.bdwt-sp-article .api-head-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:.8rem;padding-bottom:.6rem;border-bottom:1px solid #1A2640}

/* 6. TUTORIAL & ACTION */
.bdwt-sp-article .comp-step-card{background:var(--sp-bg-card);border:1px solid var(--sp-line);border-radius:12px;padding:1.6rem;margin:1.5rem 0;position:relative}
.bdwt-sp-article .step-badge{font-family:'DM Mono',monospace;font-size:.7rem;font-weight:800;color:var(--sp-blue);background:rgba(16,96,212,.08);padding:3px 10px;border-radius:4px;border:1px solid rgba(16,96,212,.2);display:inline-block;margin-bottom:.8rem}

.bdwt-sp-article .comp-ui-path{display:flex;align-items:center;gap:8px;padding:.8rem 1.2rem;background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:8px;font-family:'DM Mono',monospace;font-size:.78rem;color:var(--sp-ink);flex-wrap:wrap;margin:1.5rem 0}
.bdwt-sp-article .path-sep{color:var(--sp-muted);font-weight:700}
.bdwt-sp-article .path-item.active{color:var(--sp-blue);font-weight:700}

.bdwt-sp-article .comp-checklist{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.4rem;margin:1.5rem 0}
.bdwt-sp-article .chk-item{display:flex;align-items:center;gap:10px;margin-bottom:.8rem;font-size:.88rem;color:var(--sp-ink)}
.bdwt-sp-article .chk-item:last-child{margin-bottom:0}
.bdwt-sp-article .chk-box{width:18px;height:18px;border-radius:4px;border:2px solid var(--sp-blue);display:inline-flex;align-items:center;justify-content:center;color:#fff;background:var(--sp-blue);font-size:12px;font-weight:900;flex-shrink:0}

.bdwt-sp-article .comp-trouble{background:rgba(192,34,42,.04);border:1px solid rgba(192,34,42,.2);border-radius:10px;padding:1.4rem;margin:1.5rem 0}
.bdwt-sp-article .trouble-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:1.2rem;margin-top:.8rem}

/* 7. CONCEPT & KNOWLEDGE */
.bdwt-sp-article .comp-def{background:var(--sp-bg-card);border:1px solid var(--sp-line);border-left:4px solid var(--sp-purple);border-radius:10px;padding:1.5rem;margin:1.5rem 0}
.bdwt-sp-article .def-term{font-size:1.15rem;font-weight:800;color:var(--sp-ink);margin-bottom:.4rem}

.bdwt-sp-article .comp-anatomy{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.5rem;margin:1.5rem 0;font-family:'DM Mono',monospace;font-size:.85rem}
.bdwt-sp-article .anat-bar{display:flex;gap:4px;justify-content:center;margin-bottom:1rem;flex-wrap:wrap}
.bdwt-sp-article .anat-part{padding:.4rem .8rem;border-radius:4px;color:#fff;font-weight:700}

.bdwt-sp-article .comp-mental{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.5rem;margin:1.5rem 0;text-align:center}

.bdwt-sp-article .comp-layer{display:flex;flex-direction:column;gap:8px;max-width:540px;margin:1.5rem auto}
.bdwt-sp-article .layer-block{background:var(--sp-bg-card);border:1px solid var(--sp-line2);border-radius:8px;padding:.8rem 1.2rem;text-align:center;font-weight:700;font-size:.88rem;color:var(--sp-ink)}

/* 8. EVIDENCE & CASE STUDY */
.bdwt-sp-article .comp-case{background:var(--sp-bg-card);border:1px solid var(--sp-line);border-radius:14px;padding:1.8rem;margin:1.5rem 0;box-shadow:0 4px 16px rgba(0,0,0,.03)}
.bdwt-sp-article .case-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--sp-line)}
.bdwt-sp-article .case-box h6{font-family:'DM Mono',monospace;font-size:.65rem;color:var(--sp-muted);text-transform:uppercase;margin-bottom:4px}
.bdwt-sp-article .case-box p{font-size:.88rem;font-weight:700;color:var(--sp-ink);margin:0}

.bdwt-sp-article .comp-test-res{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:12px;padding:1.5rem;display:flex;align-items:center;gap:2rem;margin:1.5rem 0;flex-wrap:wrap}
.bdwt-sp-article .grade-badge{width:70px;height:70px;border-radius:50%;background:var(--sp-teal);color:#fff;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:800;box-shadow:0 4px 16px rgba(0,200,168,.3);flex-shrink:0}

.bdwt-sp-article .comp-anno-img{background:var(--sp-bg-subtle);border:1px solid var(--sp-line);border-radius:10px;padding:1.5rem;position:relative;margin:1.5rem 0;text-align:center}
.bdwt-sp-article .anno-marker{position:absolute;width:24px;height:24px;border-radius:50%;background:var(--sp-blue);color:#fff;font-weight:800;font-size:.75rem;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.3)}

.bdwt-sp-article .comp-quote{background:var(--sp-bg-card);border:1px solid var(--sp-line);border-left:4px solid var(--sp-blue);border-radius:10px;padding:1.4rem;margin:1.5rem 0}

/* ── RESPONSIVE (mirrors DESIGN.md breakpoints used by the widget library) ── */
@media (max-width: 768px) {
  .bdwt-sp-article .comp-kpi-grid,
  .bdwt-sp-article .comp-options,
  .bdwt-sp-article .comp-avsb,
  .bdwt-sp-article .comp-before-after,
  .bdwt-sp-article .comp-pros-cons,
  .bdwt-sp-article .comp-good-bad,
  .bdwt-sp-article .comp-api-reqres,
  .bdwt-sp-article .case-grid,
  .bdwt-sp-article .comp-spark-grid,
  .bdwt-sp-article .trouble-grid,
  .bdwt-sp-article .comp-decision { grid-template-columns: 1fr; }

  .bdwt-sp-article .comp-dataflow { grid-template-columns: 1fr; gap: 8px; }
  .bdwt-sp-article .comp-dataflow .flow-arrow { transform: rotate(90deg); margin: 4px 0; }

  .bdwt-sp-article .comp-heatmap { grid-template-columns: 80px repeat(4,1fr); font-size: .72rem; }

  .bdwt-sp-article .comp-test-res { flex-direction: column; text-align: center; }
}