/* ============================================================
   首页 V2 版式（按客户设计稿重排）
   依赖 typography.css 的令牌：--type-* / --space-section / --radius-*
   ============================================================ */

/* ---------- 通用 section ---------- */
.home-section { padding: var(--space-section) 0; }
.home-section--tight { padding: calc(var(--space-section) * 0.7) 0; }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-bottom: clamp(32px, 4vw, 56px);
}
.section-head .section-title { margin: 0; }
.section-head__aside {
  font-size: var(--type-body);
  line-height: var(--lh-body);
  color: var(--text-muted);
  max-width: 42ch;
  justify-self: end;
}
@media (max-width: 860px) {
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .section-head__aside { justify-self: start; }
}

/* ---------- Hero ---------- */
.hero--home {
  position: relative;
  min-height: min(88vh, 780px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--vi-mist);
}
.hero--home .hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero--home .hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  border-radius: 0;
}
.hero--home .hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg,
    rgba(255,255,255,0.94) 0%,
    rgba(255,255,255,0.82) 34%,
    rgba(255,255,255,0.28) 62%,
    rgba(255,255,255,0.05) 100%);
}
.hero--home .hero-inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(72px, 10vh, 120px);
}
/* 眉标与主标题之间的呼吸（原来两者贴在一起） */
.hero--home .kicker {
  margin: 0 0 clamp(22px, 2.6vw, 36px);
  max-width: 100%;
}
/* 主标题：字号比首版放大一档，同时保证「定制化设计与开发服务」不折第三行 */
.hero--home .hero-title {
  font-size: clamp(2.05rem, 5.5vw, 4.5rem);
  max-width: none;
}
.hero--home .hero-desc {
  font-size: clamp(0.94rem, 1.05vw, 1rem);
  line-height: 1.9;
  max-width: 37em;
  margin-top: clamp(20px, 2.2vw, 30px);
}
@media (min-width: 861px) {
  /* 桌面端锁定单行，避免末字被拆到下一行 */
  .hero--home .hero-title-line { white-space: nowrap; }
}
@media (max-width: 860px) {
  /* 窄屏：37em 会宽于视口，被 hero 的 overflow:hidden 裁掉，这里放开 */
  .hero--home .hero-desc { max-width: 100%; }
  .hero--home .hero-title { font-size: clamp(1.75rem, 7.4vw, 2.6rem); }
}

/* ---------- 01 产品矩阵 ---------- */
.product-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 28px);
}
.matrix-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color .35s var(--ease-out), transform .35s var(--ease-out);
}
.matrix-card:hover { border-color: var(--text); transform: translateY(-3px); }
.matrix-media {
  aspect-ratio: 16 / 9;
  background: var(--vi-mist);
  overflow: hidden;
}
.matrix-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform .5s var(--ease-out);
}
.matrix-card:hover .matrix-media img { transform: scale(1.03); }
.matrix-body { padding: clamp(20px, 2vw, 28px); display: flex; flex-direction: column; gap: 10px; }
.matrix-body h3 { margin: 0; font-size: var(--type-card); }
.matrix-body p { margin: 0; color: var(--text-muted); font-size: var(--type-body); line-height: var(--lh-body); }
.matrix-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.matrix-tags span {
  font-size: 0.74rem;
  letter-spacing: .04em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
}
@media (max-width: 760px) { .product-matrix { grid-template-columns: 1fr; } }

/* ---------- 02 产业端 / 教育端 ---------- */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.solution-card {
  background: var(--bg-card);
  padding: clamp(28px, 3vw, 44px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.solution-card h3 { margin: 0; font-size: var(--type-card); }
.solution-card > p { margin: 0; color: var(--text-muted); font-size: var(--type-body); line-height: var(--lh-body); }
.solution-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border); }
.solution-list li { border-bottom: 1px solid var(--border); }
.solution-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 2px;
  color: var(--text);
  text-decoration: none;
  font-size: var(--type-body);
  transition: color .3s var(--ease-out), padding-left .3s var(--ease-out);
}
.solution-list a:hover { color: var(--accent); padding-left: 6px; }
.solution-list a i { font-size: .72rem; color: var(--text-dim); transition: transform .3s var(--ease-out); }
.solution-list a:hover i { transform: translate(2px, -2px); color: var(--accent); }
@media (max-width: 860px) { .solution-grid { grid-template-columns: 1fr; } }

/* ---------- 03 研发能力 ---------- */
.capability {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  margin-bottom: clamp(32px, 4vw, 52px);
}
.capability__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--vi-mist);
}
.capability__media img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
.capability__text p { color: var(--text-muted); line-height: var(--lh-body); }
.capability__link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text); text-decoration: none;
  border-bottom: 1px solid var(--border); padding-bottom: 6px;
  transition: color .3s var(--ease-out), border-color .3s var(--ease-out);
}
.capability__link:hover { color: var(--accent); border-color: var(--accent); }
@media (max-width: 860px) { .capability { grid-template-columns: 1fr; } .capability__media { order: -1; } }

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 32px);
  border-top: 1px solid var(--border);
  padding-top: clamp(22px, 2.5vw, 34px);
}
.step__no { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; color: var(--accent); }
.step h4 { margin: 8px 0 10px; font-size: 1.05rem; font-family: var(--font-display); }
.step p { margin: 0; color: var(--text-muted); font-size: .9rem; line-height: 1.65; }
@media (max-width: 860px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* ---------- 04 项目实践 ---------- */
.practice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 26px);
}
.practice-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}
.practice-card__media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--vi-mist); }
.practice-card__media img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; transition: transform .5s var(--ease-out); }
.practice-card:hover .practice-card__media img { transform: scale(1.04); }
.practice-card__body { padding: clamp(18px, 2vw, 26px); display: flex; flex-direction: column; gap: 8px; }
.practice-card__body h3 { margin: 0; font-size: 1.08rem; }
.practice-card__body p { margin: 0; color: var(--text-muted); font-size: .92rem; line-height: 1.7; }
@media (max-width: 900px) { .practice-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .practice-grid { grid-template-columns: 1fr; } }

/* ---------- 05 关于 ---------- */
.about-strip {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}
.about-strip__text p { color: var(--text-muted); line-height: var(--lh-body); margin: 0 0 14px; }
.about-numbers {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(12px, 1.5vw, 22px);
  margin-top: clamp(22px, 2.5vw, 34px);
  border-top: 1px solid var(--border);
  padding-top: clamp(20px, 2.2vw, 30px);
}
.about-numbers .num b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.2vw, 2.1rem);
  line-height: 1;
  color: var(--accent);
}
.about-numbers .num span { display: block; margin-top: 8px; font-size: .8rem; color: var(--text-muted); }
@media (max-width: 860px) {
  .about-strip { grid-template-columns: 1fr; }
  .about-numbers { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 520px) { .about-numbers { grid-template-columns: repeat(2, 1fr); } }

.partner-line {
  margin-top: clamp(26px, 3vw, 40px);
  padding-top: clamp(18px, 2vw, 26px);
  border-top: 1px solid var(--border);
  /* 一长条：不换行，窄屏横向滑动 */
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: clamp(14px, 1.8vw, 30px);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.partner-line::-webkit-scrollbar { display: none; }
.partner-line > * { flex: 0 0 auto; }
.partner-line__label {
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-dim); white-space: nowrap;
}
.partner-line a, .partner-line span {
  font-size: .92rem; color: var(--text-muted); text-decoration: none;
  transition: color .3s var(--ease-out); white-space: nowrap;
}
.partner-line a:hover { color: var(--text); }

/* ---------- CTA ---------- */
.home-cta {
  text-align: center;
  padding: clamp(56px, 8vw, 104px) 0;
  background: var(--vi-mist);
}
.home-cta h2 { margin: 0 0 14px; font-size: var(--type-section); }
/* 一整行：不再用 52ch 卡宽 */
.home-cta p { margin: 0 auto 28px; max-width: 100%; color: var(--text-muted); line-height: var(--lh-body); }
.home-cta__actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ============================================================
   定制开发页：Banner 轮播 + 分类 tab + 产品切换
   ============================================================ */

/* ---------- Banner 轮播 ---------- */
.dev-banner {
  position: relative;
  min-height: clamp(420px, 56vh, 560px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--vi-ink);
}
/* 桌面端按原图比例（1920×902）撑满，避免 cover 把上下裁掉 */
@media (min-width: 1000px) {
  .dev-banner { min-height: 0; aspect-ratio: 1920 / 902; }
}
.banner-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 1.1s var(--ease-out), transform 6s linear;
}
.banner-slide.is-active { opacity: 1; transform: scale(1); }
.banner-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg,
    rgba(12,13,15,0.86) 0%,
    rgba(12,13,15,0.66) 42%,
    rgba(12,13,15,0.22) 74%,
    rgba(12,13,15,0.05) 100%);
}
.banner-content { position: relative; z-index: 1; color: #fff; padding: clamp(52px, 8vh, 84px) 0; }
.banner-content .kicker { color: rgba(255,255,255,.72); }
.banner-title {
  margin: 14px 0 10px;
  font-size: clamp(2rem, 3.6vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.banner-sub {
  margin: 0 0 22px;
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  color: rgba(255,255,255,.8);
}
.banner-list {
  list-style: none; margin: 0 0 28px; padding: 0;
  display: flex; flex-direction: column; gap: 8px;
  font-size: .95rem; color: rgba(255,255,255,.72);
}
.banner-list li { display: flex; align-items: center; gap: 9px; }
.banner-list li::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%;
  background: var(--vi-red); flex: none;
}
.banner-dots {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
  display: flex; gap: 9px; z-index: 2;
}
.banner-dot {
  width: 26px; height: 4px; border: none; padding: 0; cursor: pointer;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.32);
  transition: background .3s var(--ease-out), width .3s var(--ease-out);
}
.banner-dot.is-active { background: #fff; width: 40px; }

/* ---------- 分类 tab ---------- */
.prod-head { margin-bottom: clamp(22px, 2.5vw, 34px); }
.prod-tabs {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.prod-tab {
  display: flex; flex-direction: column; gap: 2px;
  text-align: left;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background .3s var(--ease-out), border-color .3s var(--ease-out), color .3s var(--ease-out);
}
.prod-tab__en { font-family: var(--font-mono); font-size: .62rem; letter-spacing: .12em; color: var(--text-dim); }
.prod-tab__cn { font-size: .92rem; color: var(--text); }
.prod-tab:hover { border-color: var(--text-dim); }
.prod-tab.is-active { background: var(--vi-red); border-color: var(--vi-red); }
.prod-tab.is-active .prod-tab__en { color: rgba(255,255,255,.7); }
.prod-tab.is-active .prod-tab__cn { color: #fff; }

/* ---------- 二级产品 tab ---------- */
.prod-subtabs {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin: 18px 0 clamp(24px, 3vw, 40px);
}
.prod-subtab {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: .9rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .28s var(--ease-out);
}
.prod-subtab:hover { color: var(--text); background: var(--bg-card-hover); }
.prod-subtab.is-active {
  color: var(--text);
  background: var(--vi-mist);
  border-color: var(--border);
  font-weight: 600;
}

/* ---------- 产品展示区 ---------- */
.prod-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}
.prod-stage__media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  place-items: center;
}
.prod-stage__media img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: clamp(16px, 2.5vw, 36px);
  border-radius: 0;
}
.prod-stage__tag {
  position: absolute; top: 16px; right: 18px;
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: .14em;
  color: var(--text-dim);
}
.prod-stage__info { display: flex; flex-direction: column; gap: 16px; }
.prod-stage__no {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .16em;
  color: var(--accent);
}
.prod-stage__title { margin: 0; font-size: var(--type-section); line-height: 1.15; }
.prod-stage__desc { margin: 0; color: var(--text-muted); line-height: var(--lh-body); }

.prod-points { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.prod-points li { display: flex; gap: 10px; font-size: .94rem; line-height: 1.68; color: var(--text); }
.prod-points i { color: var(--accent); font-size: .72rem; margin-top: 6px; flex: none; }

.prod-specs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 6px 0 4px;
}
.prod-spec {
  background: var(--vi-mist);
  border-radius: var(--radius-sm);
  padding: 12px 12px 10px;
}
.prod-spec b { display: block; font-family: var(--font-display); font-size: .98rem; line-height: 1.25; }
.prod-spec span { display: block; margin-top: 5px; font-size: .72rem; color: var(--text-muted); line-height: 1.4; }
.prod-stage__info .btn { align-self: flex-start; margin-top: 6px; }

/* ---------- 缩略图 ---------- */
.prod-thumbs {
  display: flex; flex-wrap: wrap; gap: 12px;
  margin-top: clamp(24px, 3vw, 36px);
}
.prod-thumb {
  width: 96px; height: 72px;
  padding: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  transition: border-color .3s var(--ease-out), transform .3s var(--ease-out);
}
.prod-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 6px; border-radius: 0; }
.prod-thumb:hover { transform: translateY(-2px); }
.prod-thumb.is-active { border-color: var(--vi-red); box-shadow: 0 0 0 1px var(--vi-red) inset; }

@media (max-width: 900px) {
  .prod-stage { grid-template-columns: 1fr; }
  .prod-stage__media { order: -1; }
  .prod-specs { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .prod-tab { padding: 8px 14px; }
  .prod-thumb { width: 72px; height: 56px; }
}

/* ============================================================
   赛事区块（职教服务 / 合作案例）
   两行图组：第一行比赛现场、第二行培训现场
   ============================================================ */
.race-rows {
  display: grid;
  gap: clamp(28px, 3.4vw, 44px);
  margin-top: clamp(28px, 3vw, 40px);
}
.race-row__label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.race-row__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}
.race-row__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(12px, 1.4vw, 18px);
}
.race-tile {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--vi-mist);
}
.race-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 0;
  transition: transform 0.6s var(--ease-out);
}
.race-tile:hover img { transform: scale(1.04); }
.race-tile span {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 44px 16px 14px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.86) 100%);
  color: #fff;
  font-size: 0.8rem;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

/* 赛项清单（合作案例 · 文字列表，双列） */
.race-list-label {
  margin: clamp(36px, 4vw, 52px) 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.race-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(28px, 4vw, 56px);
  border-top: 1px solid var(--border);
}
.race-list li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text);
}
.race-list li b {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

@media (max-width: 900px) {
  .race-row__grid { grid-template-columns: repeat(2, 1fr); }
  .race-list { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .race-row__grid { grid-template-columns: 1fr; }
  .race-tile { aspect-ratio: 16 / 11; }
}

/* ============================================================
   可读性修正：白底卡片上的图注
   原 --text-dim(#8B8D8F) 在纯白卡上对比度仅约 3.2:1，偏淡，
   这里统一提到 VI 炭灰 #3D3E3F（仍在五色集合内）。
   ============================================================ */
.marquee .award-card span,
.photo-grid figcaption {
  color: var(--vi-charcoal);
}
/* 奖项题注长短不一，预留两行高度，跑马灯卡片才不会一行高一行矮 */
.marquee .award-card span {
  min-height: 2.7em;
  display: block;
}

/* ============================================================
   第二轮视觉修正（2026-10-19 下午）
   ============================================================ */

/* 1) 案例卡标签：黑底胶囊 → 白底细边（黑底压在照片上显得脏） */
.case-tag {
  background: rgba(255, 255, 255, 0.94) !important;
  color: var(--vi-ink) !important;
  border: 1px solid rgba(22, 23, 26, 0.08) !important;
  border-radius: var(--radius-pill) !important;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

/* 2) 院校 / 客户 logo 卡：直角 → 圆角 */
.marquee .logo-card,
.logo-card {
  border-radius: var(--radius);
}

/* 3) 奖项卡：直角 → 圆角 */
.marquee .award-card,
.award-card {
  border-radius: var(--radius);
  overflow: hidden;
}

/* ============================================================
   移动端整体适配（≤768px）
   ============================================================ */
@media (max-width: 768px) {
  /* 兜底：任何元素意外撑宽都不出现横向滚动 */
  body { overflow-x: hidden; }

  /* Hero：不再顶到屏幕边缘，字号与行距按手机重排 */
  .hero--home { min-height: auto; }
  .hero--home .hero-inner { padding-block: 88px 56px; }
  .hero--home .kicker {
    font-size: 0.68rem; letter-spacing: 0.05em; line-height: 1.7;
    margin-bottom: 20px;
  }
  .hero--home .hero-title { font-size: clamp(1.7rem, 7.8vw, 2.4rem); line-height: 1.22; }
  .hero--home .hero-desc { font-size: 0.95rem; line-height: 1.85; margin-top: 18px; }
  .hero-actions { gap: 12px; }

  /* 区块节奏与网格：统一收成一列（minmax(0,1fr) 才能压住 nowrap 内容的最小宽度） */
  .home-section { padding-block: clamp(48px, 9vw, 72px); }
  .section-head { gap: 16px; margin-bottom: 28px; }
  .product-matrix,
  .solution-grid,
  .practice-grid,
  .capability,
  .about-strip,
  .prod-stage,
  .race-row__grid,
  .race-list { grid-template-columns: minmax(0, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about-numbers { grid-template-columns: repeat(2, 1fr); }
  .home-cta { padding-block: clamp(48px, 9vw, 72px); }
  .home-cta p { font-size: 0.95rem; }

  /* 定制开发 Banner：手机上按最小高度，图仍 cover 满屏 */
  .dev-banner { min-height: 420px; }
  .banner-content { padding-block: 44px; }

  /* 标签与图组 */
  .case-tag { font-size: 0.68rem; padding: 5px 12px; }
  .race-row__grid { gap: 12px; }
  .race-tile { aspect-ratio: 16 / 11; }
}

@media (max-width: 420px) {
  .matrix-body { padding: 16px; }
  .prod-thumb { width: 64px; height: 50px; }
  .about-numbers { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   合作院校与合作伙伴：上 logo 跑马灯、下成果案例缩略图
   （对齐「第一版效果」参考图：一排校徽 + 五张案例小图带图注）
   ============================================================ */
.partner-marquee .marquee-group {
  gap: 14px;
  padding-right: 14px;
  animation-duration: 46s;
}
.partner-marquee .logo-card {
  width: clamp(110px, 11vw, 140px);
  height: clamp(64px, 6.4vw, 82px);
  padding: 9px 11px;
  background: #FFFFFF;
  border-radius: var(--radius-sm);
}
/* 校徽源图自带白边，用 contain 撑满卡片才够饱满 */
.partner-marquee .logo-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.partner-cases {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.partner-cases figure { margin: 0; }
.partner-cases img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.partner-cases figcaption {
  margin-top: 9px;
  font-size: var(--type-caption);
  line-height: var(--lh-caption);
  letter-spacing: 0;
  color: var(--vi-charcoal);
  text-align: center;
  /* 院校名长短不一，统一按两行高度，五列基线才对得齐 */
  min-height: calc(var(--lh-caption) * 2em);
}

/* 1180 以下五列会窄到图注折行，提前降到三列 */
@media (max-width: 1180px) {
  .partner-cases { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  /* 5 张在 3 列里是 3+2，让第 5 张占两列，第二行不留空洞 */
  .partner-cases figure:nth-child(5) { grid-column: span 2; }
  .partner-cases figure:nth-child(5) img { aspect-ratio: 16 / 9; }
}
@media (max-width: 768px) {
  .partner-marquee .logo-card { width: 104px; height: 62px; padding: 8px 10px; }
  .partner-cases { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .partner-cases figcaption { font-size: 0.72rem; }
  /* 2 列时同理：最后一张通栏 */
  .partner-cases figure:nth-child(5) { grid-column: 1 / -1; }
  .partner-cases figure:nth-child(5) img { aspect-ratio: 16 / 9; }
}
@media (max-width: 420px) {
  .partner-cases { gap: 10px; }
}

/* 在线留言：提交状态提示（成功 / 失败） */
.form-status {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.7;
  text-align: center;
  color: var(--vi-ink);
}
.form-status[data-tone="ok"] { color: var(--vi-ink); font-weight: 600; }
.form-status[data-tone="err"] { color: var(--vi-red); }