<!--</head><!--

body.dark-mode {
  --portal-border: rgba(255,255,255,0.08);
  --portal-card-bg: #1e293b;
  --portal-text: #f1f5f9;
  --portal-muted: #94a3b8;
  --portal-shadow: 0 4px 20px rgba(0,0,0,0.25);
}

/* Base Container */
.news-portal-container {
  direction: rtl;
  margin-bottom: 35px;
}

/* Category Magazine Block Header */
.portal-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 35px 0 20px 0;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--portal-border);
  position: relative;
}
.portal-block-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  right: 0;
  width: 80px;
  height: 2px;
  background: var(--block-color, var(--portal-accent));
}
.header-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}
.block-accent-bar {
  width: 5px;
  height: 28px;
  border-radius: 4px;
  background: var(--block-color, var(--portal-accent));
}
.block-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--block-color, var(--portal-accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.12);
}
.portal-block-header h2.block-title {
  margin: 0 !important;
  padding: 0 !important;
  font-size: 20px !important;
  font-weight: 800 !important;
  color: var(--portal-text) !important;
  font-family: 'Cairo', 'Tajawal', sans-serif !important;
  letter-spacing: -0.3px;
}
.block-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--block-color, var(--portal-accent)) !important;
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1.5px solid var(--block-color, var(--portal-accent));
  transition: all 0.25s ease;
}
.block-view-all:hover {
  background: var(--block-color, var(--portal-accent));
  color: #fff !important;
}

/* Magazine Grid Layout (1 Big Lead Card + 3 Side Cards) */
.portal-magazine-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 22px;
}
@media (max-width: 900px) {
  .portal-magazine-grid {
    grid-template-columns: 1fr;
  }
}

/* Lead Big Card */
.magazine-lead-card {
  position: relative;
  background: var(--portal-card-bg);
  border-radius: var(--portal-radius);
  overflow: hidden;
  border: 1px solid var(--portal-border);
  box-shadow: var(--portal-shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.magazine-lead-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}
.lead-thumb-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: #111827;
}
.lead-thumb-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.magazine-lead-card:hover .lead-thumb-wrap img {
  transform: scale(1.05);
}
.lead-cat-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--block-color, var(--portal-accent));
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.lead-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lead-card-title {
  font-size: 19px !important;
  font-weight: 800 !important;
  line-height: 1.5 !important;
  margin: 0 !important;
}
.lead-card-title a {
  color: var(--portal-text) !important;
  text-decoration: none;
}
.lead-card-title a:hover {
  color: var(--block-color, var(--portal-accent)) !important;
}
.lead-card-snippet {
  font-size: 14px;
  line-height: 1.6;
  color: var(--portal-muted);
  margin: 0;
}
.lead-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--portal-muted);
  margin-top: 6px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Side Cards List */
.magazine-side-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.magazine-side-item {
  display: flex;
  gap: 14px;
  background: var(--portal-card-bg);
  border-radius: 12px;
  padding: 10px;
  border: 1px solid var(--portal-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.magazine-side-item:hover {
  transform: translateX(-4px);
  box-shadow: var(--portal-shadow);
}
.side-item-thumb {
  position: relative;
  width: 120px;
  height: 85px;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #111827;
}
.side-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.magazine-side-item:hover .side-item-thumb img {
  transform: scale(1.08);
}
.side-item-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}
.side-item-title {
  font-size: 14px !important;
  font-weight: 700 !important;
  line-height: 1.45 !important;
  margin: 0 !important;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.side-item-title a {
  color: var(--portal-text) !important;
  text-decoration: none;
}
.side-item-title a:hover {
  color: var(--block-color, var(--portal-accent)) !important;
}
.side-item-date {
  font-size: 11px;
  color: var(--portal-muted);
}

/* Trio Cards Grid Layout */
.portal-trio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .portal-trio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 580px) {
  .portal-trio-grid {
    grid-template-columns: 1fr;
  }
}
.trio-card {
  background: var(--portal-card-bg);
  border-radius: var(--portal-radius);
  overflow: hidden;
  border: 1px solid var(--portal-border);
  box-shadow: var(--portal-shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.trio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.1);
}
.trio-thumb-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: #111827;
}
.trio-thumb-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.trio-card:hover .trio-thumb-wrap img {
  transform: scale(1.06);
}
.trio-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
  justify-content: space-between;
}
.trio-card-title {
  font-size: 15px !important;
  font-weight: 700 !important;
  line-height: 1.5 !important;
  margin: 0 !important;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.trio-card-title a {
  color: var(--portal-text) !important;
  text-decoration: none;
}
.trio-card-title a:hover {
  color: var(--block-color, var(--portal-accent)) !important;
}
.trio-card-meta {
  font-size: 12px;
  color: var(--portal-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Related Posts Magazine Style */
.RelatedPosts, #RelatedPosts {
  margin-top: 45px !important;
  padding-top: 25px !important;
  border-top: 2px solid var(--portal-border) !important;
}
.related-portal-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 20px !important;
  margin-top: 18px !important;
}
@media (max-width: 900px) {
  .related-portal-grid { grid-template-columns: repeat(2, 1fr) !important; }
}
@media (max-width: 580px) {
  .related-portal-grid { grid-template-columns: 1fr !important; }
}
.related-portal-card {
  background: var(--portal-card-bg) !important;
  border-radius: 12px !important;
  overflow: hidden !important;
  border: 1px solid var(--portal-border) !important;
  box-shadow: 0 4px 15px rgba(0,0,0,0.04) !important;
  display: flex !important;
  flex-direction: column !important;
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}
.related-portal-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 10px 24px rgba(0,0,0,0.09) !important;
}
.related-thumb-holder {
  position: relative !important;
  width: 100% !important;
  padding-top: 56.25% !important;
  overflow: hidden !important;
  background: #111827 !important;
}
.related-thumb-holder img {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  transition: transform 0.35s ease !important;
}
.related-portal-card:hover .related-thumb-holder img {
  transform: scale(1.06) !important;
}
.related-card-content {
  padding: 14px !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 6px !important;
}
.related-card-title {
  font-size: 15px !important;
  font-weight: 700 !important;
  line-height: 1.5 !important;
  margin: 0 !important;
}
.related-card-title a {
  color: var(--portal-text) !important;
  text-decoration: none !important;
}
.related-card-title a:hover {
  color: var(--portal-accent) !important;
}
.related-card-date {
  font-size: 12px !important;
  color: var(--portal-muted) !important;
}

/* ========================================================
   RELATED POSTS 3-COLUMN GRID FIX (Sp-posts7 & PostByCat)
   ======================================================== */
.RelatedPosts .PostByCat,
.RelatedPosts .PostByCat > div,
.RelatedPosts .posts-from,
.RelatedPosts .loadclass,
.RelatedPosts [class*="Sp-posts"],
.RelatedPosts [class*="Sp-posts"] > div,
.RelatedPosts .post-frome-tag {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 20px !important;
  width: 100% !important;
  box-sizing: border-box !important;
}

@media screen and (max-width: 900px) {
  .RelatedPosts .PostByCat,
  .RelatedPosts .PostByCat > div,
  .RelatedPosts .posts-from,
  .RelatedPosts .loadclass,
  .RelatedPosts [class*="Sp-posts"],
  .RelatedPosts [class*="Sp-posts"] > div,
  .RelatedPosts .post-frome-tag {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
  }
}

@media screen and (max-width: 600px) {
  .RelatedPosts .PostByCat,
  .RelatedPosts .PostByCat > div,
  .RelatedPosts .posts-from,
  .RelatedPosts .loadclass,
  .RelatedPosts [class*="Sp-posts"],
  .RelatedPosts [class*="Sp-posts"] > div,
  .RelatedPosts .post-frome-tag {
    grid-template-columns: 1fr !important;
  }
}

.RelatedPosts .posts {
  display: flex !important;
  flex-direction: column !important;
  background: var(--portal-card-bg, #ffffff) !important;
  border-radius: 14px !important;
  overflow: hidden !important;
  border: 1px solid var(--portal-border, rgba(0,0,0,0.08)) !important;
  box-shadow: 0 4px 14px rgba(0,0,0,0.04) !important;
  transition: transform 0.25s ease, box-shadow 0.25s ease !important;
  margin: 0 !important;
  width: 100% !important;
  box-sizing: border-box !important;
}
.dark-mode .RelatedPosts .posts {
  background: #1e293b !important;
  border-color: rgba(255,255,255,0.08) !important;
}
.RelatedPosts .posts:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 10px 24px rgba(0,0,0,0.09) !important;
}
.RelatedPosts .posts .thumb {
  position: relative !important;
  width: 100% !important;
  padding-top: 56.25% !important;
  height: 0 !important;
  margin: 0 !important;
  overflow: hidden !important;
  background: #111827 !important;
  clip-path: none !important;
  -webkit-clip-path: none !important;
  border-radius: 0 !important;
}
.RelatedPosts .posts .thumb img {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  transition: transform 0.35s ease !important;
  opacity: 1 !important;
  display: block !important;
}
.RelatedPosts .posts:hover .thumb img {
  transform: scale(1.06) !important;
}
.RelatedPosts .posts h3.posts.post-title,
.RelatedPosts .posts .rnav-title {
  padding: 12px 14px !important;
  margin: 0 !important;
}
.RelatedPosts .posts h3.posts.post-title a,
.RelatedPosts .posts .rnav-title a {
  font-size: 14.5px !important;
  font-weight: 700 !important;
  line-height: 1.5 !important;
  color: var(--TitColor, #1e293b) !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important;
  overflow: hidden !important;
  text-decoration: none !important;
}
.dark-mode .RelatedPosts .posts h3.posts.post-title a,
.dark-mode .RelatedPosts .posts .rnav-title a {
  color: #f1f5f9 !important;
}
.RelatedPosts .posts .Date {
  padding: 0 14px 12px 14px !important;
  font-size: 11.5px !important;
  color: var(--SanColor, #64748b) !important;
}

/* Universal Fix for Noimger across standard feeds */
.Noimger {
  display: none !important;
}
.Img-Holder.thumb img, img.post-thumb {
  display: block !important;
  opacity: 1 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
}
/*]]>*/</style>
<style>/*<![CDATA[*/
/* ========================================================
   DEFINITIVE FIX: 3-COLUMN GRID FOR RELATED POSTS & HOMEPAGE STREAM
   ======================================================== */

/* 1. In-Article Widget Styling (Image 2 Fix) */
.PostRandomCont .inline-related-item .item-thumb {
  width: 90px !important;
  height: 60px !important;
  border-radius: 8px !important;
  overflow: hidden !important;
  flex-shrink: 0 !important;
  background: #111827 !important;
}
.PostRandomCont .inline-related-item .item-thumb img {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  display: block !important;
}

/* 2. Bottom Related Posts 3-Column Grid (Image 1 Fix) */
.RelatedPosts, #RelatedPosts {
  margin-top: 50px !important;
  padding-top: 30px !important;
  border-top: 2px solid rgba(0, 0, 0, 0.08) !important;
  clear: both !important;
  display: block !important;
  width: 100% !important;
  box-sizing: border-box !important;
}
.dark-mode .RelatedPosts, .dark-mode #RelatedPosts {
  border-top-color: rgba(255, 255, 255, 0.08) !important;
}

/* Force 3 Columns on Desktop */
.RelatedPosts .PostByCat,
.RelatedPosts .PostByCat > div,
.RelatedPosts .posts-from,
.RelatedPosts .loadclass,
.RelatedPosts .post-frome-tag,
.RelatedPosts [class*="Sp-posts"],
.RelatedPosts [class*="Sp-posts"] > div {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 22px !important;
  width: 100% !important;
  box-sizing: border-box !important;
  padding: 0 !important;
  margin: 0 !important;
}

@media screen and (max-width: 900px) {
  .RelatedPosts .PostByCat,
  .RelatedPosts .PostByCat > div,
  .RelatedPosts .posts-from,
  .RelatedPosts .loadclass,
  .RelatedPosts .post-frome-tag,
  .RelatedPosts [class*="Sp-posts"],
  .RelatedPosts [class*="Sp-posts"] > div {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
  }
}

@media screen and (max-width: 600px) {
  .RelatedPosts .PostByCat,
  .RelatedPosts .PostByCat > div,
  .RelatedPosts .posts-from,
  .RelatedPosts .loadclass,
  .RelatedPosts .post-frome-tag,
  .RelatedPosts [class*="Sp-posts"],
  .RelatedPosts [class*="Sp-posts"] > div {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
}

/* Related Posts Card Styling */
.RelatedPosts .posts {
  display: flex !important;
  flex-direction: column !important;
  background: var(--portal-card-bg, #ffffff) !important;
  border-radius: 16px !important;
  overflow: hidden !important;
  border: 1px solid var(--portal-border, rgba(0, 0, 0, 0.08)) !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04) !important;
  transition: transform 0.25s ease, box-shadow 0.25s ease !important;
  margin: 0 !important;
  width: 100% !important;
  box-sizing: border-box !important;
  height: 100% !important;
}
.dark-mode .RelatedPosts .posts {
  background: #1e293b !important;
  border-color: rgba(255, 255, 255, 0.08) !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25) !important;
}
.RelatedPosts .posts:hover {
  transform: translateY(-5px) !important;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.09) !important;
}
.RelatedPosts .posts .thumb,
.RelatedPosts .posts .Img-Holder {
  position: relative !important;
  width: 100% !important;
  padding-top: 56.25% !important;
  height: 0 !important;
  margin: 0 !important;
  overflow: hidden !important;
  background: #111827 !important;
  clip-path: none !important;
  -webkit-clip-path: none !important;
  border-radius: 0 !important;
  display: block !important;
  inset: unset !important;
}
.RelatedPosts .posts .thumb img,
.RelatedPosts .posts .Img-Holder img {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  transition: transform 0.35s ease !important;
  opacity: 1 !important;
  display: block !important;
}
.RelatedPosts .posts:hover .thumb img,
.RelatedPosts .posts:hover .Img-Holder img {
  transform: scale(1.06) !important;
}
.RelatedPosts .posts h3.posts.post-title,
.RelatedPosts .posts .rnav-title {
  padding: 14px 16px 8px 16px !important;
  margin: 0 !important;
}
.RelatedPosts .posts h3.posts.post-title a,
.RelatedPosts .posts .rnav-title a {
  font-family: 'Cairo', 'Tajawal', sans-serif !important;
  font-size: 15px !important;
  font-weight: 700 !important;
  line-height: 1.5 !important;
  color: var(--TitColor, #1e293b) !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important;
  overflow: hidden !important;
  text-decoration: none !important;
}
.dark-mode .RelatedPosts .posts h3.posts.post-title a,
.dark-mode .RelatedPosts .posts .rnav-title a {
  color: #f1f5f9 !important;
}
.RelatedPosts .posts .Date {
  padding: 0 16px 14px 16px !important;
  font-size: 12px !important;
  color: var(--SanColor, #64748b) !important;
  margin-top: auto !important;
}

/* 3. Homepage News Stream Layout - Transform standard feed into clean modern 3-col grid */
body.home .r-r .blog-posts > .Posts-byCategory {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 24px !important;
  margin-top: 25px !important;
}
@media screen and (max-width: 900px) {
  body.home .r-r .blog-posts > .Posts-byCategory {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media screen and (max-width: 600px) {
  body.home .r-r .blog-posts > .Posts-byCategory {
    grid-template-columns: 1fr !important;
  }
}
body.home .r-r .posts {
  background: var(--portal-card-bg, #ffffff) !important;
  border-radius: 16px !important;
  overflow: hidden !important;
  border: 1px solid var(--portal-border, rgba(0, 0, 0, 0.08)) !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04) !important;
  transition: transform 0.25s ease, box-shadow 0.25s ease !important;
  margin-bottom: 0 !important;
  display: flex !important;
  flex-direction: column !important;
}
body.home .r-r .posts:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.09) !important;
}
body.home .r-r .posts .thumb {
  position: relative !important;
  width: 100% !important;
  padding-top: 56.25% !important;
  height: 0 !important;
  margin: 0 !important;
  overflow: hidden !important;
  background: #111827 !important;
  border-radius: 0 !important;
  float: none !important;
}
body.home .r-r .posts .thumb img {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  opacity: 1 !important;
  display: block !important;
}
body.home .r-r .posts .post-home.cont {
  padding: 16px !important;
  display: flex !important;
  flex-direction: column !important;
  flex-grow: 1 !important;
}
body.home .r-r .posts .post-title a {
  font-family: 'Cairo', 'Tajawal', sans-serif !important;
  font-size: 15px !important;
  font-weight: 750 !important;
  line-height: 1.5 !important;
  color: var(--TitColor, #1e293b) !important;
  display: -webkit-box !important;
  -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important;
  overflow: hidden !important;
}
/*]]>*/</style>
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أخبار مصر

وضح لماذا تعد انظمة الاتصالات الحديثة مهمة للعلماء في انحاء العالم

Momen Hemeid

آخر تحديث

•

أكتوبر 14, 2026

•

4 دقائق

وضح لماذا تعد انظمة الاتصالات الحديثة مهمة للعلماء في انحاء العالم وهو سؤال مهم في مادة العلوم للصف الثالث المتوسط، ونعرض لكم حل لهذا السؤال الذي يبحث عنه الكثير من الطلاب على محرك بحث جوجل، لكي نساعدهم في معرفة الاجابة ويصبحو من المتميزين.

وضح لماذا تعد انظمة الاتصالات الحديثة مهمة للعلماء في انحاء العالم

الجواب هو كالاتي :

- لأأنها تسمح بتواصل العلماء ونشر أفكارهم واكتشفاتهم بشكل أفض.

انظمة الاتصالات,العلماء في انحاء العالم,انظمة الاتصالات والعلماء في أنحاء العالم

أخبار مصر تعليم

Momen Hemeid

نسعى لتقديم تغطية إخبارية شاملة وموثوقة لكافة الأحداث والمستجدات على مدار الساعة في موقع ترند اليوم.

تعليقات

إرسال تعليق

أنت في موقع ترند اليوم، نحاول بكل جهد مساعدتك في المواضيع التي تبحث عنها، فأنت الآن تريد التعليق برجاء إرفاق كامل تفاصيل ما تريد بإيجاز لسهولة الرد عليك ♥♥

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