/* === Deterministic media-size variables (breakpoint-driven, no vw scaling) === */
:root {
  --media-h-sm: 160px;   /* small media height */
  --media-h-md: 300px;   /* medium media height */
  --media-h-lg: 520px;   /* large media height (about/hero image) */
  --media-w-sm: 220px;   /* small media width (news thumb) */
  --media-w-lg: 340px;   /* large media width */
  --chart-h: 240px;      /* bar chart height */
  --bar-w: 48px;         /* bar width */
  --map-h: 420px;        /* map height */
}
@media (min-width: 1200px) {
  --media-h-sm: 200px; --media-h-md: 360px; --media-h-lg: 560px;
  --media-w-sm: 260px; --media-w-lg: 400px;
  --chart-h: 300px; --bar-w: 64px; --map-h: 480px;
}
@media (min-width: 1600px) {
  --media-h-sm: 240px; --media-h-md: 420px; --media-h-lg: 640px;
  --media-w-sm: 300px; --media-w-lg: 440px;
  --chart-h: 340px; --bar-w: 76px; --map-h: 560px;
}
@media (min-width: 1920px) {
  --media-h-sm: 260px; --media-h-md: 460px; --media-h-lg: 720px;
  --media-w-sm: 320px; --media-w-lg: 480px;
  --chart-h: 380px; --bar-w: 88px; --map-h: 640px;
}
@media (min-width: 2560px) {
  --media-h-sm: 300px; --media-h-md: 520px; --media-h-lg: 840px;
  --media-w-sm: 360px; --media-w-lg: 540px;
  --chart-h: 440px; --bar-w: 104px; --map-h: 760px;
}

/* === Page Hero / Breadcrumb === */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0f2942 100%);
  padding: calc(var(--header-h) * 1.6) 0 var(--section-pad);
  text-align: center;
}
.page-hero h1 { font-size: var(--fs-3xl); color: #fff; margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.7); font-size: var(--fs-lg); }
.breadcrumb { display: flex; justify-content: center; gap: 8px; margin-bottom: 16px; font-size: var(--fs-body); }
.breadcrumb a { color: rgba(255,255,255,0.6); text-decoration: none; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* === Section Tag === */
.section-tag { display: inline-block; font-size: calc(var(--fs-body) * 0.75); font-weight: 600; color: var(--color-accent); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; }

/* === About Page === */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); align-items: center; }
.about-text { font-size: var(--fs-body); line-height: 1.9; color: var(--color-text); margin-bottom: 16px; }
.about-img-placeholder { width: 100%; height: var(--media-h-lg); background: linear-gradient(135deg, var(--color-primary) 0%, #1e4d7a 100%); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; }
.about-img-inner { text-align: center; color: #fff; }
.about-year { display: block; font-size: var(--fs-lg); letter-spacing: 4px; opacity: 0.7; }
.about-year-num { display: block; font-size: calc(var(--fs-2xl) * 1.8); font-weight: 900; line-height: 1; }

/* Culture */
.culture-section { background: var(--color-bg-alt); }
.culture-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: var(--gap); margin-top: var(--gap-lg); }
.culture-card { background: #fff; border-radius: var(--radius); padding: var(--gap-lg) var(--gap); text-align: center; box-shadow: 0 2px 20px rgba(0,0,0,0.06); transition: transform 0.3s; }
.culture-card:hover { transform: translateY(-5px); }
.culture-icon { font-size: calc(var(--fs-3xl) * 0.9); margin-bottom: 16px; }
.culture-card h3 { font-size: var(--fs-xl); color: var(--color-primary); margin-bottom: 12px; }
.culture-card p { color: var(--color-text-light); line-height: 1.7; font-size: var(--fs-body); }

/* Timeline */
.history-section { background: #fff; }
.timeline { position: relative; max-width: min(80vw, 900px); margin: var(--gap-lg) auto 0; padding-left: 40px; }
@media (min-width: 1600px) { .timeline { max-width: 1040px; } }
@media (min-width: 1920px) { .timeline { max-width: 1160px; } }
@media (min-width: 2560px) { .timeline { max-width: 1280px; } }
.timeline::before { content: ''; position: absolute; left: 15px; top: 0; bottom: 0; width: 3px; background: linear-gradient(to bottom, var(--color-primary), var(--color-accent)); border-radius: 2px; }
.timeline-item { position: relative; margin-bottom: var(--gap); }
.timeline-item::before { content: ''; position: absolute; left: -25px; top: 8px; width: var(--fs-body); height: var(--fs-body); border-radius: 50%; background: var(--color-primary); border: 3px solid #fff; box-shadow: 0 0 0 3px var(--color-primary); }
.timeline-year { font-size: var(--fs-xl); font-weight: 700; color: var(--color-primary); margin-bottom: 6px; }
.timeline-content h4 { font-size: var(--fs-lg); margin-bottom: 4px; }
.timeline-content p { color: var(--color-text-light); font-size: var(--fs-body); }

/* Team */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: var(--gap); margin-top: var(--gap-lg); }
.team-card { background: #fff; border-radius: var(--radius); padding: var(--gap) calc(var(--gap) * 0.7); text-align: center; box-shadow: 0 2px 20px rgba(0,0,0,0.06); transition: transform 0.3s; }
.team-card:hover { transform: translateY(-5px); }
.team-avatar { width: calc(var(--fs-2xl) * 2); height: calc(var(--fs-2xl) * 2); border-radius: 50%; background: linear-gradient(135deg, var(--color-primary), #2a5a8c); color: #fff; display: flex; align-items: center; justify-content: center; font-size: var(--fs-xl); font-weight: 700; margin: 0 auto 16px; }
.team-card h3 { font-size: var(--fs-lg); margin-bottom: 4px; }
.team-role { color: var(--color-accent); font-size: var(--fs-body); font-weight: 500; margin-bottom: 10px; }
.team-desc { color: var(--color-text-light); font-size: var(--fs-body); line-height: 1.6; }

/* === News Page === */
.news-filter, .product-filter { display: flex; gap: 12px; margin-bottom: var(--gap-lg); flex-wrap: wrap; }
.filter-btn { padding: calc(var(--fs-body) * 0.5) calc(var(--fs-body) * 1.2); border: 2px solid #ddd; border-radius: 24px; background: #fff; cursor: pointer; font-size: var(--fs-body); color: var(--color-text); transition: all 0.3s; }
.filter-btn:hover, .filter-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.news-grid-full { display: grid; gap: var(--gap); }
.news-card { display: flex; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.news-card:hover { transform: translateY(-3px); }
.news-card-img { width: var(--media-w-sm); min-height: var(--media-h-sm); background: linear-gradient(135deg, var(--color-primary) 0%, #1e4d7a 100%); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.news-date-badge { text-align: center; color: #fff; font-size: var(--fs-3xl); font-weight: 700; line-height: 1.2; }
.news-date-badge small { font-size: calc(var(--fs-body) * 0.8); font-weight: 400; opacity: 0.8; }
.news-card-body { padding: var(--gap) calc(var(--gap) * 1.1); flex: 1; }
.news-category { display: inline-block; padding: 2px 10px; background: var(--color-bg-alt); color: var(--color-accent); font-size: calc(var(--fs-body) * 0.75); font-weight: 600; border-radius: 4px; margin-bottom: 8px; }
.news-card-body h3 { font-size: var(--fs-lg); margin-bottom: 8px; line-height: 1.4; }
.news-card-body p { color: var(--color-text-light); font-size: var(--fs-body); line-height: 1.6; margin-bottom: 12px; }
.news-link { color: var(--color-primary); font-size: var(--fs-body); font-weight: 500; text-decoration: none; }
.news-link:hover { color: var(--color-accent); }

.pagination { display: flex; justify-content: center; gap: 8px; margin-top: var(--gap-lg); }
.page-btn { display: inline-flex; align-items: center; justify-content: center; min-width: calc(var(--fs-body) * 2.6); height: calc(var(--fs-body) * 2.6); padding: 0 12px; border: 1px solid #ddd; border-radius: 6px; color: var(--color-text); text-decoration: none; font-size: var(--fs-body); transition: all 0.3s; }
.page-btn:hover, .page-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* === Investor Page === */
.stock-card { display: flex; align-items: center; justify-content: space-between; background: linear-gradient(135deg, #0f2942 0%, var(--color-primary) 100%); border-radius: var(--radius); padding: var(--gap) calc(var(--gap) * 1.5); color: #fff; }
.stock-info h3 { font-size: var(--fs-lg); }
.stock-main { display: flex; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.stock-currency { font-size: var(--fs-body); opacity: 0.7; }
.stock-value { font-size: calc(var(--fs-3xl) * 0.75); font-weight: 900; }
.stock-change { font-size: var(--fs-lg); font-weight: 600; }
.stock-change.positive { color: #4ade80; }
.stock-details { display: flex; gap: var(--gap); flex-wrap: wrap; }
.stock-detail { display: flex; flex-direction: column; }
.stock-detail span:first-child { font-size: calc(var(--fs-body) * 0.75); opacity: 0.6; }
.stock-detail span:last-child { font-size: var(--fs-body); font-weight: 500; }

.finance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: var(--gap); margin-bottom: var(--gap-lg); }
.finance-card { background: #fff; border-radius: var(--radius); padding: var(--gap); text-align: center; box-shadow: 0 2px 16px rgba(0,0,0,0.06); }
.finance-label { display: block; font-size: var(--fs-body); color: var(--color-text-light); margin-bottom: 8px; }
.finance-value { display: block; font-size: var(--fs-2xl); font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
.finance-change { font-size: var(--fs-body); font-weight: 600; }
.finance-change.positive { color: #22c55e; }

.chart-container { background: #fff; border-radius: var(--radius); padding: var(--gap) var(--gap-lg); box-shadow: 0 2px 16px rgba(0,0,0,0.06); }
.chart-container h3 { font-size: var(--fs-body); color: var(--color-text); margin-bottom: 24px; }
.bar-chart { display: flex; align-items: flex-end; justify-content: space-around; height: var(--chart-h); padding: 0 var(--gap); }
.bar-group { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.bar { width: var(--bar-w); background: linear-gradient(to top, var(--color-primary), #3a7cc0); border-radius: 6px 6px 0 0; transition: height 1s ease; position: relative; }
.bar span { position: absolute; top: -22px; left: 50%; transform: translateX(-50%); font-size: calc(var(--fs-body) * 0.8); font-weight: 600; color: var(--color-primary); white-space: nowrap; }
.bar-label { font-size: var(--fs-body); color: var(--color-text-light); }

.announcement-list { max-width: min(86vw, 1100px); }
@media (min-width: 1600px) { .announcement-list { max-width: 1240px; } }
@media (min-width: 1920px) { .announcement-list { max-width: 1380px; } }
@media (min-width: 2560px) { .announcement-list { max-width: 1520px; } }
.announcement-item { display: flex; align-items: flex-start; gap: 20px; padding: 20px 0; border-bottom: 1px solid #eee; transition: background 0.3s; }
.announcement-item:hover { background: var(--color-bg-alt); margin: 0 -20px; padding: 20px; border-radius: 8px; }
.announcement-date { font-size: var(--fs-body); color: var(--color-text-light); white-space: nowrap; min-width: 90px; }
.announcement-body { flex: 1; }
.announcement-body h4 { font-size: var(--fs-body); margin-bottom: 4px; }
.announcement-body p { font-size: var(--fs-body); color: var(--color-text-light); }
.announcement-type { display: inline-block; padding: 2px 10px; background: var(--color-bg-alt); color: var(--color-accent); font-size: calc(var(--fs-body) * 0.7); font-weight: 600; border-radius: 4px; white-space: nowrap; }

.reports-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: var(--gap); }
.report-card { background: #fff; border-radius: var(--radius); padding: var(--gap); text-align: center; box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.report-card:hover { transform: translateY(-4px); }
.report-icon { font-size: calc(var(--fs-2xl) * 1.3); margin-bottom: 16px; }
.report-card h3 { font-size: var(--fs-body); margin-bottom: 8px; }
.report-card p { font-size: var(--fs-body); color: var(--color-text-light); margin-bottom: 20px; line-height: 1.5; }

.governance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: var(--gap); }
.governance-card { background: #fff; border-radius: var(--radius); padding: var(--gap); box-shadow: 0 2px 16px rgba(0,0,0,0.06); }
.governance-card h3 { font-size: var(--fs-lg); color: var(--color-primary); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--color-bg-alt); }
.governance-card ul { list-style: none; padding: 0; }
.governance-card li { padding: 8px 0; font-size: var(--fs-body); color: var(--color-text); border-bottom: 1px solid #f0f0f0; }
.governance-card li:last-child { border-bottom: none; }

.ir-info { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); }
.ir-detail h4 { font-size: var(--fs-lg); color: var(--color-primary); margin-bottom: 12px; }
.ir-detail p { line-height: 1.8; color: var(--color-text); font-size: var(--fs-body); }

/* === Products Page === */
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: var(--gap); }
.product-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.product-card:hover { transform: translateY(-5px); }
.product-img-placeholder { height: var(--media-h-md); background: linear-gradient(135deg, var(--color-primary) 0%, #1e4d7a 100%); display: flex; align-items: center; justify-content: center; }
.product-img-placeholder span { font-size: calc(var(--fs-3xl) * 0.85); }
.product-card-body { padding: var(--gap); }
.product-category { display: inline-block; padding: 2px 10px; background: var(--color-bg-alt); color: var(--color-accent); font-size: calc(var(--fs-body) * 0.75); font-weight: 600; border-radius: 4px; margin-bottom: 10px; }
.product-card-body h3 { font-size: var(--fs-lg); margin-bottom: 8px; }
.product-card-body p { font-size: var(--fs-body); color: var(--color-text-light); line-height: 1.6; margin-bottom: 12px; }
.product-detail-link { color: var(--color-primary); font-size: var(--fs-body); font-weight: 500; text-decoration: none; }

.solution-section { background: var(--color-bg-alt); }
.solution-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: var(--gap); margin-top: var(--gap-lg); }
.solution-card { background: #fff; border-radius: var(--radius); padding: var(--gap); text-align: center; box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.solution-card:hover { transform: translateY(-4px); }
.solution-icon { font-size: calc(var(--fs-2xl) * 1.2); margin-bottom: 16px; }
.solution-card h3 { font-size: var(--fs-lg); margin-bottom: 8px; }
.solution-card p { font-size: var(--fs-body); color: var(--color-text-light); line-height: 1.5; }

.cases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: var(--gap); }
.case-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.case-card:hover { transform: translateY(-4px); }
.case-img-placeholder { height: var(--media-h-sm); background: linear-gradient(135deg, #2a5a8c 0%, var(--color-primary) 100%); display: flex; align-items: center; justify-content: center; }
.case-img-placeholder span { font-size: calc(var(--fs-3xl) * 0.85); color: rgba(255,255,255,0.3); font-weight: 900; }
.case-card h3 { font-size: var(--fs-body); padding: 16px 20px 4px; }
.case-card p { font-size: var(--fs-body); color: var(--color-text-light); padding: 0 20px 20px; }

/* === Sustainability Page === */
.esg-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: var(--gap); margin-top: var(--gap-lg); }
.esg-card { background: #fff; border-radius: var(--radius); padding: var(--gap-lg) var(--gap); text-align: center; box-shadow: 0 2px 20px rgba(0,0,0,0.06); transition: transform 0.3s; border-top: 4px solid transparent; }
.esg-card:hover { transform: translateY(-5px); }
.esg-e { border-top-color: #22c55e; }
.esg-s { border-top-color: #3b82f6; }
.esg-g { border-top-color: #f59e0b; }
.esg-letter { font-size: calc(var(--fs-3xl) * 1.1); font-weight: 900; margin-bottom: 12px; }
.esg-e .esg-letter { color: #22c55e; }
.esg-s .esg-letter { color: #3b82f6; }
.esg-g .esg-letter { color: #f59e0b; }
.esg-card h3 { font-size: var(--fs-lg); margin-bottom: 12px; }
.esg-card p { color: var(--color-text-light); line-height: 1.7; font-size: var(--fs-body); }

.eco-section { background: var(--color-bg-alt); }
.eco-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: var(--gap); margin-bottom: calc(var(--section-pad) * 0.6); }
.eco-stat { background: #fff; border-radius: var(--radius); padding: var(--gap); text-align: center; box-shadow: 0 2px 16px rgba(0,0,0,0.06); }
.eco-number { font-size: var(--fs-3xl); font-weight: 900; color: var(--color-primary); display: inline; }
.eco-unit { font-size: var(--fs-xl); font-weight: 600; color: var(--color-primary); }
.eco-stat p { color: var(--color-text-light); font-size: var(--fs-body); margin-top: 8px; }

.eco-projects { display: grid; gap: var(--gap); max-width: min(86vw, 1000px); margin: 0 auto; }
@media (min-width: 1600px) { .eco-projects { max-width: 1160px; } }
@media (min-width: 1920px) { .eco-projects { max-width: 1300px; } }
@media (min-width: 2560px) { .eco-projects { max-width: 1440px; } }
.eco-project { background: #fff; border-radius: var(--radius); padding: var(--gap); box-shadow: 0 2px 12px rgba(0,0,0,0.04); }
.eco-project h3 { font-size: var(--fs-lg); margin-bottom: 8px; }
.eco-project p { font-size: var(--fs-body); color: var(--color-text-light); margin-bottom: 12px; }
.progress-bar { height: 8px; background: #e5e7eb; border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, #22c55e, #16a34a); border-radius: 4px; transition: width 1.5s ease; }

.social-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: var(--gap); margin-top: var(--gap-lg); }
.social-card { background: #fff; border-radius: var(--radius); padding: var(--gap); box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.social-card:hover { transform: translateY(-4px); }
.social-card h3 { font-size: var(--fs-lg); margin-bottom: 10px; }
.social-card p { font-size: var(--fs-body); color: var(--color-text-light); line-height: 1.7; margin-bottom: 12px; }
.social-amount { font-size: var(--fs-body); font-weight: 600; color: var(--color-accent); }

/* === Test Page === */
.test-page-images { width: 100%; }
.test-images { display: flex; flex-direction: column; width: 100%; }
.test-image { width: 100%; height: 100svh; min-height: 600px; display: block; object-fit: cover; object-position: center; }

/* === Contact Page === */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); }
.contact-form-wrapper h2, .contact-info h2 { font-size: var(--fs-xl); margin-bottom: var(--gap); color: var(--color-primary); }
.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: var(--fs-body); font-weight: 500; margin-bottom: 6px; color: var(--color-text); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: calc(var(--fs-body) * 0.8) calc(var(--fs-body) * 1); border: 1px solid #ddd; border-radius: var(--radius); font-size: var(--fs-body);
  font-family: inherit; transition: border-color 0.3s; background: #fff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--color-primary); outline: none; }
.form-group textarea { resize: vertical; }

.contact-info-list { display: grid; gap: 20px; }
.contact-info-item { display: flex; align-items: flex-start; gap: 16px; padding: 16px; border-radius: var(--radius); transition: background 0.3s; }
.contact-info-item:hover { background: var(--color-bg-alt); }
.contact-info-icon { font-size: var(--fs-xl); flex-shrink: 0; }
.contact-info-item h4 { font-size: var(--fs-body); margin-bottom: 4px; color: var(--color-primary); }
.contact-info-item p { font-size: var(--fs-body); color: var(--color-text-light); line-height: 1.6; }

.branches-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: var(--gap); }
.branch-card { background: #fff; border-radius: var(--radius); padding: var(--gap); box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.3s; }
.branch-card:hover { transform: translateY(-3px); }
.branch-card h3 { font-size: var(--fs-lg); color: var(--color-primary); margin-bottom: 12px; }
.branch-card p { font-size: var(--fs-body); color: var(--color-text-light); line-height: 1.6; }

.map-placeholder { height: var(--map-h); background: #f0f4f8; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; }
.map-fallback { text-align: center; color: var(--color-text); font-size: var(--fs-lg); }

/* === Video fullscreen (edge-to-edge, any screen incl. 4K) === */
.video-fullscreen { position: relative; width: 100vw; margin-left: calc(50% - 50vw); height: 100svh; min-height: 600px; overflow: hidden; background: #000; }
.video-fullscreen video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; border: none; }

/* === Button === */
.btn { display: inline-block; padding: calc(var(--fs-body) * 0.7) calc(var(--fs-body) * 1.6); border-radius: var(--radius); font-size: var(--fs-body); font-weight: 500; text-decoration: none; cursor: pointer; border: none; transition: all 0.3s; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: #0f2942; }

/* === Responsive (narrow layouts) === */
@media (max-width: 1024px) {
  .about-grid, .contact-grid, .ir-info { grid-template-columns: 1fr; gap: var(--gap-lg); }
  .stock-card { flex-direction: column; gap: 20px; text-align: center; }
  .stock-details { justify-content: center; }
}
@media (max-width: 768px) {
  .page-hero h1 { font-size: var(--fs-2xl); }
  .news-card { flex-direction: column; }
  .news-card-img { width: 100%; min-height: 120px; }
  .contact-form .form-row { grid-template-columns: 1fr; }
  .about-grid, .contact-grid, .ir-info { grid-template-columns: 1fr; }
  .stock-card { flex-direction: column; text-align: center; }
}

/* ===== 4K / Ultrawide polish ===== */
@media (min-width: 1920px) {
  .page-hero h1 { font-size: calc(var(--fs-3xl) * 1.1); }
  .news-card-body h3, .product-card-body h3, .governance-card h3, .esg-card h3, .eco-project h3, .social-card h3 { font-size: var(--fs-xl); }
  .culture-card p, .news-card-body p, .product-card-body p, .esg-card p, .eco-project p, .social-card p, .team-desc, .solution-card p, .branch-card p, .governance-card li { line-height: 1.8; }
  .stock-details { gap: 56px; }
}
@media (min-width: 2560px) {
  .page-hero h1 { font-size: calc(var(--fs-3xl) * 1.15); }
  .page-hero p { font-size: var(--fs-xl); }
  .stock-card { padding: calc(var(--gap) * 1.6) calc(var(--gap) * 2.2); }
  .finance-value { font-size: var(--fs-3xl); }
  .timeline { padding-left: 56px; }
  .timeline::before { left: 21px; width: 4px; }
  .timeline-item::before { left: -35px; width: calc(var(--fs-body) * 1.3); height: calc(var(--fs-body) * 1.3); }
  .bar-chart { gap: 32px; }
  .announcement-item { gap: 32px; padding: 28px 0; }
  .form-group input, .form-group select, .form-group textarea { padding: calc(var(--fs-body) * 1) calc(var(--fs-body) * 1.2); }
}