/* PRESENTATION PAGE — tutorial details use the same editorial shell as articles */
body.tutorial-page {
  --tutorial-panel: rgba(10, 28, 53, .78);
  --tutorial-panel-strong: rgba(8, 22, 43, .94);
  --tutorial-text: #dce8f8;
  --tutorial-soft: #b9cbe1;
  min-width: 320px;
  overflow-x: hidden;
}
.tutorial-page .article-header-inner {
  max-width: 1120px;
}
.tutorial-page .tutorial-back {
  display: inline-flex;
  min-width: 126px;
  min-height: 44px;
  align-items: center;
  gap: 6px;
  color: #b7cbe1;
  font-size: 12px;
}
.tutorial-page .tutorial-back span:first-child {
  color: var(--cyan);
  font-size: 20px;
  line-height: 1;
}
.tutorial-page .article-live {
  font-size: 11px;
  white-space: nowrap;
}
.tutorial-wrap {
  max-width: 980px !important;
  padding-top: 38px !important;
}
.tutorial-wrap .article-breadcrumb {
  max-width: 900px;
  font-size: 12px;
}
.tutorial-post {
  max-width: 900px !important;
  margin-top: 30px !important;
}
.tutorial-post-head {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(156,190,224,.18);
}
.tutorial-kicker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tutorial-kicker-row .article-kicker,
.tutorial-kicker-row .article-edition {
  font-size: 11px;
}
.tutorial-kicker-row .tutorial-index {
  color: var(--muted-2);
  font-size: 11px;
  letter-spacing: .14em;
}
.tutorial-post-head h1 {
  max-width: 18em;
  margin: 22px 0 16px;
  color: var(--paper);
  font-size: clamp(34px, 5.6vw, 54px);
  font-weight: 450;
  line-height: 1.16;
  letter-spacing: -.045em;
}
.tutorial-post-head .article-dek {
  max-width: 48em;
  margin-bottom: 17px;
  color: #c0d0e2;
  font-size: 18px;
  line-height: 1.75;
}
.tutorial-meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 16px;
  color: var(--muted-2);
  font-size: 12px;
  line-height: 1.6;
}
.tutorial-meta-line strong { color: var(--mint); font-weight: 600; }
.tutorial-prose {
  max-width: 860px;
  margin: 30px auto 0;
}
.tutorial-lead {
  margin-bottom: 38px;
}
.tutorial-lead p {
  font-size: 17px !important;
  line-height: 1.9 !important;
}
.tutorial-section {
  margin: 0 0 48px;
  padding-top: 5px;
}
.tutorial-section-heading {
  margin: 0 0 17px;
  padding: 11px 15px;
  background: linear-gradient(90deg, rgba(184,232,117,.11), transparent);
  border-left: 3px solid var(--mint);
}
.tutorial-section-heading .article-section-kicker {
  color: var(--cyan);
  font-size: 11px;
}
.tutorial-section-heading h2 {
  margin: 3px 0 0;
  color: var(--paper);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.4;
}
.tutorial-section > p,
.tutorial-section .tutorial-paragraph {
  margin: 0 0 22px;
  color: var(--tutorial-text);
  font-size: 17px;
  line-height: 1.95;
}
.tutorial-demo-slot {
  margin: 25px 0 0;
  padding: 15px 17px;
  border: 1px dashed rgba(143,232,255,.42);
  border-left: 3px solid var(--cyan);
  border-radius: 8px;
  background: rgba(143,232,255,.055);
}
.tutorial-demo-slot .tutorial-demo-label {
  display: block;
  margin-bottom: 5px;
  color: var(--mint);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}
.tutorial-demo-slot p {
  margin: 0;
  color: #bfd0e3;
  font-size: 15px;
  line-height: 1.75;
}
.tutorial-shot {
  margin: 27px 0 30px;
  padding: 13px;
  border: 1px solid rgba(143,232,255,.32);
  border-left: 3px solid var(--cyan);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(17,43,72,.66), rgba(7,22,42,.88));
  box-shadow: 0 14px 34px rgba(0,0,0,.12);
}
.tutorial-shot-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 10px;
}
.tutorial-shot-head > span {
  color: var(--mint);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}
.tutorial-shot-head strong {
  color: #f0f8ff;
  font-size: 14px;
  font-weight: 800;
  text-align: right;
}
.tutorial-shot-visual {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.tutorial-shot-context,
.tutorial-shot-zoom {
  position: relative;
  width: 100%;
  min-width: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid rgba(143,232,255,.34);
  border-radius: 8px;
  background: #071527;
}
.tutorial-shot-context > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #f6f7f5;
}
.tutorial-focus-rect {
  position: absolute;
  z-index: 2;
  left: var(--focus-x);
  top: var(--focus-y);
  width: var(--focus-w);
  height: var(--focus-h);
  box-sizing: border-box;
  border: 3px solid var(--mint);
  border-radius: 4px;
  box-shadow: 0 0 0 2px rgba(5,20,34,.75), 0 0 20px rgba(184,232,117,.62);
  pointer-events: none;
}
.tutorial-focus-rect::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px dashed rgba(255,255,255,.84);
  border-radius: 2px;
}
.tutorial-focus-tag,
.tutorial-zoom-label {
  position: absolute;
  z-index: 3;
  top: 9px;
  left: 9px;
  padding: 5px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .06em;
}
.tutorial-focus-tag {
  color: #0b1b2b;
  background: var(--mint);
  box-shadow: 0 4px 12px rgba(0,0,0,.28);
}
.tutorial-shot-zoom {
  height: 240px;
  aspect-ratio: auto;
  border-color: rgba(184,232,117,.58);
  background: #061323;
}
.tutorial-shot-zoom-image {
  position: absolute;
  inset: 0;
  background-image: var(--shot-src);
  background-repeat: no-repeat;
  background-size: var(--shot-zoom) auto;
  background-position: var(--shot-pos-x) var(--shot-pos-y);
  filter: saturate(1.04) contrast(1.03);
}
.tutorial-shot-zoom::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,17,31,.04), rgba(5,17,31,.2));
  pointer-events: none;
}
.tutorial-zoom-label {
  color: #f4ffe7;
  background: rgba(6,22,30,.9);
  border: 1px solid rgba(184,232,117,.62);
  line-height: 1.25;
}
.tutorial-shot-annotation {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 8px;
  align-items: baseline;
  margin-top: 11px;
  padding: 10px 11px;
  border: 1px solid rgba(184,232,117,.22);
  border-radius: 6px;
  background: rgba(184,232,117,.055);
}
.tutorial-shot-annotation > span {
  color: var(--mint);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .08em;
}
.tutorial-shot-annotation > strong {
  color: #eaffd5;
  font-size: 13px;
  font-weight: 800;
}
.tutorial-shot-annotation > p {
  grid-column: 1 / -1;
  margin: 3px 0 0;
  color: #c0d2e4;
  font-size: 13px;
  line-height: 1.7;
}
.tutorial-shot figcaption {
  margin-top: 9px;
  color: #afc2d7;
  font-size: 12px;
  line-height: 1.65;
}
.tutorial-shot figcaption b { color: #e4f0ff; }
.tutorial-boundary {
  margin-top: 42px;
  padding: 17px 18px;
  border-top: 1px solid rgba(184,232,117,.34);
  background: rgba(184,232,117,.04);
}
.tutorial-boundary .article-note-label { font-size: 11px; }
.tutorial-boundary p {
  margin: 7px 0 0;
  color: #b8cbe0;
  font-size: 14px;
  line-height: 1.8;
}
.tutorial-episode-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 900px;
  margin: 30px auto 0;
  padding-top: 23px;
  border-top: 1px solid var(--line);
}
.tutorial-episode-nav a {
  display: grid;
  gap: 4px;
  min-height: 70px;
  padding: 12px 14px;
  border: 1px solid rgba(143,232,255,.2);
  border-radius: 8px;
  color: var(--paper);
  background: rgba(143,232,255,.045);
  text-decoration: none;
}
.tutorial-episode-nav a:last-child { text-align: right; }
.tutorial-episode-nav span { color: var(--mint); font-size: 10px; }
.tutorial-episode-nav strong { color: #dce8f8; font-size: 13px; line-height: 1.45; }
.tutorial-footer { max-width: 980px; }
@media (max-width: 700px) {
  .tutorial-page .article-header-inner { padding: 0 16px; }
  .tutorial-page .tutorial-back { min-width: 112px; font-size: 12px; }
  .tutorial-page .article-live { display: none; }
  .tutorial-page .article-brand .brand-copy small { display: none; }
  .tutorial-wrap { padding: 22px 16px 62px !important; }
  .tutorial-wrap .article-breadcrumb { font-size: 11px; }
  .tutorial-post { margin-top: 21px !important; }
  .tutorial-post-head { padding-bottom: 21px; }
  .tutorial-kicker-row .article-kicker,
  .tutorial-kicker-row .article-edition { font-size: 10px; }
  .tutorial-kicker-row .tutorial-index { font-size: 10px; }
  .tutorial-post-head h1 { margin: 17px 0 13px; font-size: 31px; line-height: 1.22; }
  .tutorial-post-head .article-dek { font-size: 16px; line-height: 1.78; }
  .tutorial-meta-line { font-size: 11px; }
  .tutorial-prose { margin-top: 25px; }
  .tutorial-lead { margin-bottom: 30px; }
  .tutorial-lead p { font-size: 16px !important; line-height: 1.9 !important; }
  .tutorial-section { margin-bottom: 40px; }
  .tutorial-section-heading { margin-bottom: 14px; padding: 9px 11px; }
  .tutorial-section-heading .article-section-kicker { font-size: 10px; }
  .tutorial-section-heading h2 { font-size: 20px; line-height: 1.45; }
  .tutorial-section > p,
  .tutorial-section .tutorial-paragraph { margin-bottom: 19px; font-size: 16px; line-height: 1.92; }
  .tutorial-demo-slot { margin-top: 21px; padding: 13px 14px; }
  .tutorial-demo-slot .tutorial-demo-label { font-size: 10px; }
  .tutorial-demo-slot p { font-size: 14px; line-height: 1.75; }
  .tutorial-shot { margin: 22px 0 26px; padding: 9px; border-radius: 9px; }
  .tutorial-shot-head { align-items: flex-start; flex-direction: column; gap: 4px; }
  .tutorial-shot-head > span { font-size: 10px; }
  .tutorial-shot-head strong { font-size: 13px; text-align: left; }
  .tutorial-shot-visual { gap: 11px; }
  .tutorial-shot-context { aspect-ratio: 3 / 2; }
  .tutorial-shot-zoom { height: 210px; }
  .tutorial-focus-tag,
  .tutorial-zoom-label { top: 7px; left: 7px; font-size: 10px; }
  .tutorial-shot-annotation { margin-top: 9px; padding: 9px 10px; }
  .tutorial-shot-annotation > strong { font-size: 12px; }
  .tutorial-shot-annotation > p { font-size: 12px; line-height: 1.65; }
  .tutorial-shot figcaption { font-size: 11px; line-height: 1.6; }
  .tutorial-boundary { margin-top: 32px; padding: 14px 15px; }
  .tutorial-boundary p { font-size: 13px; line-height: 1.75; }
  .tutorial-episode-nav { grid-template-columns: 1fr; gap: 9px; }
  .tutorial-episode-nav a:last-child { text-align: left; }
}

/* TUTORIAL HERO COVER — same editorial shell, with a clear global map before steps */
.tutorial-hero-cover {
  max-width: 860px;
  margin: 28px auto 0;
}
.tutorial-hero-cover-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(143,232,255,.3);
  border-radius: 12px;
  background: #071527;
  box-shadow: 0 18px 42px rgba(0,0,0,.18);
}
.tutorial-hero-cover-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tutorial-hero-cover-media > span {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,17,31,.02), rgba(5,17,31,.46));
  pointer-events: none;
}
.tutorial-hero-cover-media > b {
  position: absolute;
  left: 14px;
  bottom: 13px;
  padding: 6px 9px;
  border: 1px solid rgba(184,232,117,.48);
  border-radius: 5px;
  color: #efffdc;
  background: rgba(6,22,30,.8);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}
.tutorial-hero-cover figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-top: 9px;
  color: var(--muted-2);
  font-size: 11px;
}
.tutorial-hero-cover figcaption span { color: var(--cyan); letter-spacing: .08em; }
.tutorial-hero-cover figcaption strong { color: #c9d8e9; font-weight: 500; }
@media (max-width: 700px) {
  .tutorial-hero-cover { margin-top: 22px; }
  .tutorial-hero-cover-media { border-radius: 9px; }
  .tutorial-hero-cover-media > b { left: 9px; bottom: 9px; padding: 5px 7px; font-size: 9px; }
  .tutorial-hero-cover figcaption { align-items: flex-start; flex-direction: column; gap: 4px; font-size: 10px; }
}