/* ====================================================================
   CESIPC home.css — 首页样式（#3375af 色系）
==================================================================== */

.home-hero {
  background:
    linear-gradient(135deg, rgba(51,117,175,.92) 0%, rgba(30,74,114,.95) 100%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.06) 0%, transparent 50%);
  color: #fff;
  padding: var(--sp-20) 0 var(--sp-16);
  position: relative;
  overflow: hidden;
}
.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255,255,255,.04) 49px, rgba(255,255,255,.04) 50px),
    repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(255,255,255,.04) 49px, rgba(255,255,255,.04) 50px);
  pointer-events: none;
}
.home-hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-accent), #e85530 40%, transparent);
}
.home-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--sp-12);
  align-items: center;
}
.home-hero__eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #ffdb6a;
  margin-bottom: var(--sp-3);
}
.home-hero__title {
  color: #fff;
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--sp-4);
}
.home-hero__title span { color: #ffdb6a; }
.home-hero__sub {
  color: rgba(255,255,255,.85);
  font-size: var(--fs-xl);
  line-height: 1.7;
  margin-bottom: var(--sp-6);
  max-width: 620px;
}
.home-hero__sub strong { color: #ffdb6a; font-weight: 700; }
.home-hero__cta {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.home-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
}
.stat {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  padding: var(--sp-5);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  position: relative;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.stat:hover {
  background: rgba(255,255,255,.10);
  border-color: rgba(255,219,106,.40);
  transform: translateY(-2px);
}
.stat__icon {
  width: 24px;
  height: 24px;
  color: #ffdb6a;
  margin-bottom: var(--sp-3);
  opacity: 0.85;
}
.stat__icon svg { width: 100%; height: 100%; display: block; }
.stat__n {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: var(--sp-2);
}
.stat__n small {
  font-size: var(--fs-lg);
  color: #ffdb6a;
  margin-left: 4px;
  font-weight: 600;
}
.stat__l {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.7);
  letter-spacing: 0.04em;
}

/* ============ 9 大行业快速跳转条（hero 与平台卡之间）============ */
.industry-strip {
  background:
    linear-gradient(180deg, #122642 0%, #0d1a2e 100%);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding: var(--sp-5) 0;
}
.industry-strip .container {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  flex-wrap: wrap;
}
.industry-strip__label {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: #ffdb6a;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}
.industry-strip__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-3);
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}
.industry-strip__list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.industry-strip__list a span {
  color: #ffdb6a;
  font-size: 14px;
}
.industry-strip__list a:hover {
  color: #fff;
  background: rgba(255,219,106,.10);
  border-color: rgba(255,219,106,.40);
  transform: translateY(-1px);
}
@media (max-width: 768px) {
  .industry-strip { padding: var(--sp-4) 0; }
  .industry-strip .container { gap: var(--sp-3); }
  .industry-strip__label { font-size: var(--fs-xs); }
  .industry-strip__list a { font-size: var(--fs-xs); padding: 5px 11px; }
}

/* ============ 区块大标题 ============ */
.sec-head {
  text-align: center;
  margin-bottom: var(--sp-10);
}
.sec-head__eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--sp-3);
}
.sec-head__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--sp-3);
  color: var(--c-primary);
}
.sec-head__sub {
  font-size: var(--fs-lg);
  color: var(--c-text-2);
  max-width: 760px;
  margin: 0 auto;
}

/* ============ 四大平台卡片（一排 4 个） ============ */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
}
@media (min-width: 1600px) {
  .platform-grid { gap: var(--sp-6); }
}
/* 中等屏（1024 以下）变 2 列 */
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
}
/* 手机（640 以下）变 1 列 */
@media (max-width: 640px) {
  .platform-grid { grid-template-columns: 1fr; }
}

.platform-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  text-decoration: none !important;
  color: var(--c-text) !important;
  position: relative;
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.platform-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

/* 卡片顶部图（按图片原始比例 1000:658） */
.platform-card__media {
  aspect-ratio: 1000 / 658;
  overflow: hidden;
  background: linear-gradient(135deg, #e7eff7 0%, #f0f5fa 100%);
  position: relative;
}
.platform-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--t-slow);
}
.platform-card:hover .platform-card__media img {
  transform: scale(1.06);
}
/* 浮在图上的标签 */
.platform-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.35) 0%, rgba(0,0,0,0) 50%);
  pointer-events: none;
}
.platform-card__tag {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
  z-index: 2;
  background: var(--c-primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}

.platform-card__body {
  padding: var(--sp-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.platform-card__head {
  margin-bottom: var(--sp-3);
}
.platform-card__title {
  font-size: 24px;
  color: var(--c-primary);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 2px;
}
.platform-card__title sup {
  font-size: 11px;
  font-weight: 600;
  vertical-align: super;
}
.platform-card__sub {
  font-size: var(--fs-sm);
  color: var(--c-muted);
  font-weight: 500;
}
.platform-card__desc {
  color: var(--c-text-2);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: var(--sp-3);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.platform-card__series {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: var(--sp-4);
}

@media (min-width: 1280px) and (max-width: 1599px) {
  .platform-card__body { padding: var(--sp-4); }
  .platform-card__title { font-size: 22px; }
}
@media (min-width: 1600px) {
  .platform-card__title { font-size: 28px; }
  .platform-card__desc { font-size: var(--fs-sm); -webkit-line-clamp: 5; }
}
.platform-card__series li {
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  padding-left: var(--sp-3);
  position: relative;
  line-height: 1.6;
}
.platform-card__series li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-accent);
}
.platform-card__more {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--c-accent);
  font-weight: 700;
  transition: gap var(--t-fast);
  gap: 4px;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
}
.platform-card:hover .platform-card__more { gap: 10px; }

/* ============ AI 运算工控机系列（Jetson） ============ */
.ai-series {
  background: #fff;
}
.ai-series__hero {
  position: relative;
  color: #fff;
  padding: var(--sp-14) 0 var(--sp-12);
  text-align: center;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(118,185,0,.35) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 70%, rgba(46,108,40,.45) 0%, transparent 55%),
    linear-gradient(135deg, #0d1f0a 0%, #143a17 45%, #1f5424 100%);
  overflow: hidden;
}
.ai-series__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 25% 25%, rgba(255,255,255,.08) 0%, transparent 25%),
    radial-gradient(circle at 75% 35%, rgba(118,185,0,.18) 0%, transparent 30%),
    radial-gradient(circle at 60% 80%, rgba(255,255,255,.06) 0%, transparent 30%);
  pointer-events: none;
}
.ai-series__hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(115deg, transparent 0 60px, rgba(255,255,255,.04) 60px 61px),
    repeating-linear-gradient(65deg, transparent 0 80px, rgba(118,185,0,.06) 80px 81px);
  pointer-events: none;
  opacity: .9;
}
.ai-series__hero-inner {
  position: relative;
  z-index: 1;
}
.ai-series__eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #b8e986;
  margin-bottom: var(--sp-3);
}
.ai-series__title {
  color: #fff;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--sp-4);
}
.ai-series__lead {
  color: rgba(255,255,255,.92);
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-2);
  font-weight: 500;
}
.ai-series__lead sup { font-size: 60%; vertical-align: super; }
.ai-series__sub {
  color: rgba(255,255,255,.78);
  font-size: var(--fs-lg);
}
.ai-series__plus {
  color: var(--c-accent);
  font-weight: 800;
  font-size: 1.1em;
  margin: 0 2px;
}
.ai-series__body {
  position: relative;
  z-index: 2;
  margin-top: calc(var(--sp-10) * -1);
  padding-bottom: var(--sp-12);
}

.ai-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
}
.ai-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5) var(--sp-5) var(--sp-6);
  box-shadow: 0 8px 24px rgba(13, 31, 10, 0.10);
  display: flex;
  flex-direction: column;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.ai-card:hover {
  transform: translateY(-4px);
  border-color: #76b900;
  box-shadow: 0 14px 36px rgba(13, 31, 10, 0.18);
}
.ai-card__media {
  background: #ffffff;
  border-radius: var(--radius);
  margin-bottom: var(--sp-4);
  display: block;
  position: relative;
  overflow: hidden;
  line-height: 0;
}
.ai-card__media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}
.ai-card__placeholder-text {
  position: absolute;
  font-family: 'Inter', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: rgba(51, 117, 175, 0.18);
  letter-spacing: 0.05em;
  pointer-events: none;
  display: none;
}
.ai-card__media--placeholder .ai-card__placeholder-text {
  display: block;
}
/* 链接化的图片框（保持外观） */
a.ai-card__media {
  text-decoration: none !important;
  color: inherit;
  cursor: pointer;
}
a.ai-card__media:hover img {
  transform: scale(1.03);
  transition: transform var(--t);
}
.ai-card__title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}
.ai-card__title a:hover {
  color: #4e8200;
}
.ai-card__title {
  font-size: 20px;
  color: var(--c-primary);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--sp-4);
  line-height: 1.3;
}
.ai-card__series {
  display: block;
  font-size: 13px;
  color: #76b900;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.ai-card__specs {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--sp-4);
  flex: 1;
}
.ai-card__specs li {
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.7;
  padding: 6px 0;
  border-bottom: 1px dashed var(--c-border);
  text-align: center;
}
.ai-card__specs li:last-child { border-bottom: none; }
.ai-card__specs li sup { font-size: 60%; vertical-align: super; }
.ai-card__specs li strong {
  color: var(--c-accent);
  font-weight: 700;
}
.ai-card__more {
  align-self: center;
  font-size: var(--fs-sm);
  color: var(--c-primary);
  font-weight: 700;
  text-decoration: none;
  padding-top: var(--sp-2);
  transition: gap var(--t-fast), color var(--t-fast);
}
.ai-card__more:hover { color: var(--c-accent); }

.ai-series__footer {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 1024px) {
  .ai-card-grid { grid-template-columns: 1fr; max-width: 560px; margin-left: auto; margin-right: auto; }
  .ai-series__title { font-size: 32px; }
}
@media (max-width: 640px) {
  .ai-series__hero { padding: var(--sp-10) 0 var(--sp-8); }
  .ai-series__title { font-size: 24px; }
  .ai-series__lead { font-size: var(--fs-lg); }
  .ai-series__sub { font-size: var(--fs-md); }
  .ai-series__body { margin-top: calc(var(--sp-8) * -1); padding-bottom: var(--sp-8); }
  .ai-card { padding: var(--sp-4); }
}
@media (min-width: 1600px) {
  .ai-series__title { font-size: 56px; }
  .ai-series__hero { padding: var(--sp-16) 0 var(--sp-14); }
  .ai-card__title { font-size: 22px; }
}

/* ============ 技术架构卡片（带架构图） ============ */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.tech-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none !important;
  color: var(--c-text) !important;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
.tech-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.tech-card__diagram {
  background: linear-gradient(135deg, #f0f5fa 0%, #e7eff7 100%);
  padding: var(--sp-4);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--c-border);
}
.tech-card__diagram img,
.tech-card__diagram svg {
  width: 100%;
  height: auto;
  max-height: 200px;
  display: block;
}
.tech-card__body {
  padding: var(--sp-5) var(--sp-6) var(--sp-6);
}
.tech-card__title {
  font-size: var(--fs-h3);
  color: var(--c-primary);
  font-weight: 800;
  margin-bottom: 4px;
}
.tech-card__title sup {
  font-size: 11px;
  font-weight: 600;
  vertical-align: super;
}
.tech-card__sub {
  font-size: var(--fs-sm);
  color: var(--c-accent);
  font-weight: 600;
  margin-bottom: var(--sp-3);
}
.tech-card__desc {
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.7;
}

/* ============ 解决方案 - 行业卡片 ============ */
.solutions-industries {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5);
}
.solution-card {
  display: block;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  text-decoration: none !important;
  color: var(--c-text) !important;
  transition: all var(--t);
  position: relative;
}
.solution-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.solution-card__icon {
  font-size: 36px;
  margin-bottom: var(--sp-3);
}
.solution-card__title {
  font-size: var(--fs-h4);
  color: var(--c-primary);
  margin-bottom: var(--sp-2);
}
.solution-card__desc {
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.7;
  margin-bottom: var(--sp-4);
}
.solution-card__products {
  margin-bottom: var(--sp-4);
  padding-top: var(--sp-3);
  border-top: 1px dashed var(--c-border);
}
.solution-card__products li {
  font-size: var(--fs-xs);
  color: var(--c-text-2);
  padding: 4px 0 4px 18px;
  position: relative;
}
.solution-card__products li::before {
  content: "▸";
  position: absolute;
  left: 4px;
  color: var(--c-accent);
}
.solution-card__more {
  font-size: var(--fs-sm);
  color: var(--c-accent);
  font-weight: 700;
  transition: gap var(--t-fast);
}
.solution-card:hover .solution-card__more { letter-spacing: 0.05em; }

/* Ops 快捷卡 */
.ops-quick {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
}
.ops-quick__card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-top: 4px solid var(--c-primary);
  border-radius: var(--radius);
  padding: var(--sp-5);
  text-decoration: none !important;
  color: var(--c-text) !important;
  transition: all var(--t);
}
.ops-quick__card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.ops-quick__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}
.ops-quick__card h3 {
  font-size: 22px;
  color: var(--c-primary);
  margin-bottom: var(--sp-2);
}
.ops-quick__card h3 sup { font-size: 11px; vertical-align: super; }
.ops-quick__card p {
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.6;
  margin-bottom: var(--sp-3);
}
.ops-quick__more {
  font-size: var(--fs-sm);
  color: var(--c-accent);
  font-weight: 600;
}

/* 服务流程步骤 */
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-4);
  counter-reset: step;
}
.process-steps li {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--sp-5) var(--sp-4);
  position: relative;
}
.process-steps__n {
  font-family: 'Inter', sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--c-primary);
  display: block;
  margin-bottom: var(--sp-2);
  letter-spacing: -0.02em;
  line-height: 1;
}
.process-steps h4 {
  font-size: var(--fs-md);
  color: var(--c-primary);
  margin-bottom: var(--sp-2);
}
.process-steps p {
  font-size: var(--fs-sm);
  color: var(--c-text-2);
  line-height: 1.6;
}

@media (max-width: 1024px) {
  .solutions-industries { grid-template-columns: repeat(2, 1fr); }
  .ops-quick { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .solutions-industries { grid-template-columns: 1fr; }
  .ops-quick { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
}

/* ============ 行业卡片 ============ */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--sp-4);
}
.industry-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: transform var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
  cursor: pointer;
  text-decoration: none !important;
  color: var(--c-text) !important;
}
.industry-card:hover {
  border-color: var(--c-primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(13,31,90,0.10);
}
.industry-card:hover .industry-card__name { color: var(--c-primary); }
.industry-card__media {
  aspect-ratio: 4 / 3;
  background: linear-gradient(180deg, #f4f7fa 0%, #e7eef5 100%);
  overflow: hidden;
}
.industry-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.industry-card:hover .industry-card__media img { transform: scale(1.06); }
.industry-card__name {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-primary);
  padding: var(--sp-3) var(--sp-2);
  transition: color var(--t-fast);
}

/* ============ 询盘 CTA（主色背景） ============ */
@media (min-width: 1280px) {
  }
@media (min-width: 1600px) {
  }
@media (min-width: 1920px) {
  }
.inquiry-cta__buttons {
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ 响应式 ============ */
/* 平板 (768~1024) */
@media (max-width: 1024px) {
  .industry-grid { grid-template-columns: repeat(3, 1fr); }
  .home-hero__title { font-size: 40px; }
}
/* 中屏 (≤768) — 平台卡保持 2 列，技术卡变 1 列 */
@media (max-width: 768px) {
  .tech-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .home-hero { padding: var(--sp-12) 0 var(--sp-10); }
  .home-hero__grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .home-hero__title { font-size: 28px; }
  .home-hero__sub { font-size: var(--fs-md); }
  .home-hero__stats { grid-template-columns: 1fr 1fr; gap: var(--sp-3); }
  .stat { padding: var(--sp-3); }
  .stat__n { font-size: 26px; }
  .platform-card__body { padding: var(--sp-4); }
  .platform-card__title { font-size: 22px; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
  .industry-card__name { font-size: 13px; padding: var(--sp-2); }
      }

/* 2K 屏 */
@media (min-width: 1600px) {
  .home-hero { padding: 120px 0 100px; }
  .home-hero__title { font-size: 64px; }
  .platform-card__title { font-size: 32px; }
}
/* 4K 屏 */
@media (min-width: 1920px) {
  .home-hero { padding: 140px 0 120px; }
  .home-hero__title { font-size: 76px; }
  .platform-card__title { font-size: 36px; }
  .tech-card__diagram img, .tech-card__diagram svg { max-height: 240px; }
}

/* 平台卡 v2 样式已迁移到 components.css（共享给 index.html + products.html）*/

/* "查看产品 →" 现在是 <a> 标签，确保无下划线 + 继承样式 */
a.platform-card__more {
  text-decoration: none !important;
  display: inline-block;
}