/* ====================================================================
   CESIPC components.css — 按钮、卡片、表格、面包屑、Lightbox
==================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 10px 20px;
  font-size: var(--fs-md);
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.btn-sm  { padding: 7px 14px; font-size: var(--fs-sm); }
.btn-lg  { padding: 14px 28px; font-size: var(--fs-lg); }

.btn-primary { background: var(--c-primary); color: #fff !important; }
.btn-primary:hover { background: var(--c-primary-2); color: #fff !important; }

.btn-accent { background: var(--c-accent); color: #fff !important; }
.btn-accent:hover { background: var(--c-accent-2); color: #fff !important; }

.btn-outline {
  background: transparent;
  color: var(--c-primary) !important;
  border-color: var(--c-primary);
}
.btn-outline:hover { background: var(--c-primary); color: #fff !important; }

.btn-ghost {
  background: transparent;
  color: var(--c-text) !important;
  border-color: var(--c-border-2);
}
.btn-ghost:hover {
  background: var(--c-bg-alt);
  border-color: var(--c-primary);
  color: var(--c-primary) !important;
}

/* 白色描边按钮 —— 专用于深色背景上的次按钮（解决之前白底白字不可见的问题） */
.btn-outline-light {
  background: transparent;
  color: #fff !important;
  border-color: rgba(255,255,255,.5);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
  color: #fff !important;
}

/* ============ 移动端 sticky 底部 CTA（小屏才显示） ============ */
.mobile-cta {
  display: none;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 800;
  background: #fff;
  border-top: 1px solid var(--c-border);
  box-shadow: 0 -4px 16px rgba(0,0,0,.08);
  padding: 8px;
  gap: 8px;
}
.mobile-cta__btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 8px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none !important;
  white-space: nowrap;
  transition: opacity var(--t-fast);
}
.mobile-cta__btn:active { opacity: .8; }
.mobile-cta__btn--call {
  background: var(--c-primary);
  color: #fff !important;
}
.mobile-cta__btn--inquiry {
  background: var(--c-accent);
  color: #fff !important;
}

@media (max-width: 768px) {
  .mobile-cta { display: flex; }
  /* 给 body 加底部留白，避免被 sticky CTA 遮住内容 */
  body { padding-bottom: 60px; }
}

/* ============ 内页通用 Hero 横幅 ============ */
.page-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: 80px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-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;
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), #e85530 40%, transparent);
}
.page-hero__inner {
  position: relative;
  max-width: 900px;
}
.page-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);
}
.page-hero__title {
  color: #fff;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--sp-4);
}
.page-hero__title span { color: #ffdb6a; }
.page-hero__sub {
  color: rgba(255,255,255,.85);
  font-size: var(--fs-lg);
  line-height: 1.7;
  max-width: 720px;
}
.page-hero__breadcrumb {
  margin-bottom: var(--sp-4);
}
.page-hero__breadcrumb ol {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  font-size: var(--fs-xs);
}
.page-hero__breadcrumb li {
  color: rgba(255,255,255,.6);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}
.page-hero__breadcrumb li::after {
  content: "›";
  margin-left: var(--sp-2);
  color: rgba(255,255,255,.4);
}
.page-hero__breadcrumb li:last-child::after { display: none; }
.page-hero__breadcrumb a { color: rgba(255,255,255,.85); }
.page-hero__breadcrumb a:hover { color: var(--c-accent); }
.page-hero__breadcrumb li:last-child { color: #ffdb6a; font-weight: 600; }

@media (max-width: 768px) {
  .page-hero { padding: 56px 0 48px; }
  .page-hero__title { font-size: 30px; }
  .page-hero__sub { font-size: var(--fs-md); }
}
@media (min-width: 1600px) {
  .page-hero { padding: 100px 0 80px; }
  .page-hero__title { font-size: 56px; }
}
@media (min-width: 1920px) {
  .page-hero__title { font-size: 64px; }
}

/* ============ 内页通用 content section ============ */
.page-section {
  padding: var(--sp-16) 0;
}
.page-section--alt { background: var(--c-bg-alt); }
.page-section__head {
  text-align: center;
  margin-bottom: var(--sp-10);
}
.page-section__title {
  font-size: var(--fs-h2);
  color: var(--c-primary);
  margin-bottom: var(--sp-3);
}
.page-section__sub {
  font-size: var(--fs-lg);
  color: var(--c-text-2);
  max-width: 880px;
  margin: 0 auto;
}
@media (min-width: 1280px) {
  .page-section__sub { max-width: 1100px; }
}
@media (min-width: 1600px) {
  .page-section__sub { max-width: 1320px; }
}
@media (min-width: 1920px) {
  .page-section__sub { max-width: 1520px; }
}

/* 通用"建设中"占位卡片 */
.coming-soon {
  text-align: center;
  padding: var(--sp-16) var(--sp-4);
  max-width: 720px;
  margin: 0 auto;
}
.coming-soon__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--sp-5);
  background: var(--c-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
}
.coming-soon__title {
  font-size: var(--fs-h3);
  color: var(--c-primary);
  margin-bottom: var(--sp-3);
}
.coming-soon__desc {
  color: var(--c-text-2);
  font-size: var(--fs-md);
  line-height: 1.7;
  margin-bottom: var(--sp-6);
}
.coming-soon__actions {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}

.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--t), transform var(--t);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.card__media {
  aspect-ratio: 4 / 3;
  background: var(--c-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}
.card:hover .card__media img { transform: scale(1.04); }
.card__body { padding: var(--sp-5); }
.card__title { font-size: var(--fs-h4); margin-bottom: var(--sp-2); }
.card__sub { color: var(--c-muted); font-size: var(--fs-sm); margin-bottom: var(--sp-3); }

.spec-table {
  width: 100%;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.spec-table th, .spec-table td {
  padding: 12px 16px;
  text-align: left;
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
}
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th {
  background: var(--c-bg-alt);
  width: 32%;
  font-weight: 600;
  color: var(--c-text-2);
}
.spec-table td { color: var(--c-text); }

.breadcrumb {
  background: var(--c-bg-alt);
  border-bottom: 1px solid var(--c-border);
  padding: var(--sp-3) 0;
  font-size: var(--fs-sm);
}
.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}
.breadcrumb__list li {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  color: var(--c-muted);
}
.breadcrumb__list li::after {
  content: "›";
  margin-left: var(--sp-2);
  color: var(--c-muted);
}
.breadcrumb__list li:last-child::after { display: none; }
.breadcrumb__list a { color: var(--c-text-2); }
.breadcrumb__list a:hover { color: var(--c-accent); }
.breadcrumb__list li:last-child { color: var(--c-primary); font-weight: 600; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: 99px;
  background: var(--c-bg-alt);
  color: var(--c-primary);
}
.badge--accent { background: var(--c-accent); color: #fff; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: var(--sp-6);
}
.lightbox.is-open { display: flex; }
.lightbox__img { max-width: 95%; max-height: 90%; object-fit: contain; }
.lightbox__close {
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-4);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.lightbox__close:hover { background: rgba(255,255,255,.2); }

/* ====================================================================
   .platform-grid / .platform-card —— 共享四大平台卡片组件
   （从 home.css 抽出，products.html 等所有页面都用得到）
==================================================================== */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-5);
}
@media (min-width: 1600px) {
  .platform-grid { gap: var(--sp-6); }
}
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(2, 1fr); }
}
@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);
}
.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); }
.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);
}
.platform-card__series li {
  font-size: 15px;             /* 13 → 15px，子产品名更突出 */
  font-weight: 600;             /* 半粗体加重 */
  color: var(--c-text);         /* 用主文字色（不是次要灰） */
  padding-left: 18px;
  position: relative;
  line-height: 1.75;
  list-style: none;
}
.platform-card__series li::before {
  content: "";
  position: absolute; left: 2px; top: 11px;
  width: 7px; height: 7px;      /* 5 → 7px，红点更醒目 */
  border-radius: 50%;
  background: var(--c-accent);
  transition: transform .2s, box-shadow .2s;
}
.platform-card__series li:hover::before {
  transform: scale(1.4);
  box-shadow: 0 0 0 3px rgba(230,0,18,.18);
}
/* li 内的 <a> 子产品链接 */
.platform-card__series li a {
  color: inherit;
  text-decoration: none !important;
  display: inline-block;
  transition: color .2s;
}
.platform-card__series li a:hover {
  color: var(--c-accent);
}
/* "查看产品 →" 转成 <a> 后保持无下划线 */
a.platform-card__more {
  text-decoration: none !important;
  display: inline-block;
}
/* 媒体区超链接覆盖整个图片 */
.platform-card__media-link {
  position: absolute; inset: 0;
  display: block;
  z-index: 1;
  text-decoration: none !important;
}
/* 标题链接继承样式 */
.platform-card__title a {
  color: inherit;
  text-decoration: none !important;
  transition: color .2s;
}
.platform-card__title a:hover { color: var(--c-accent); }
/* article.platform-card 默认指针 */
article.platform-card { cursor: default; }
.platform-card__more {
  margin-top: auto;
  padding-top: var(--sp-3);
  font-size: 13px; font-weight: 700;
  color: var(--c-accent);
}
@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; }
}

/* ====================================================================
   全站 CTA 统一视觉（5 套合并为 1 套设计语言）
   涵盖：.inquiry-cta / .solutions-cta / .news-article-cta / .tech-cta
   原则：深色钢蓝渐变 + 双色光晕 + 白字 + 金色 eyebrow + 主按钮金 / 副白
   ==================================================================== */

/* ========== 基础容器 ========== */
.inquiry-cta,
.solutions-cta,
.news-article-cta,
.tech-cta {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, #0e1a2b 0%, #1e3654 60%, #2a4570 100%);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

/* 双色径向光晕装饰 */
.inquiry-cta::before,
.solutions-cta::before,
.news-article-cta::before,
.tech-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(51,117,175,0.35) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,219,106,0.20) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* 内部网格点阵（极淡） */
.inquiry-cta::after,
.solutions-cta::after,
.news-article-cta::after,
.tech-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* ========== eyebrow（金色小标签 · 高特异性覆盖老规则） ========== */
.solutions-cta .sec-head__eyebrow,
.solutions-cta__txt .sec-head__eyebrow,
.news-article-cta .sec-head__eyebrow,
.news-article-cta__inner .sec-head__eyebrow,
.tech-cta .sec-head__eyebrow,
.tech-cta__eyebrow,
.inquiry-cta .sec-head__eyebrow {
  display: inline-block !important;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: #ffdb6a !important;
  background: rgba(255,219,106,0.15) !important;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

/* ========== 标题（强特异性覆盖老规则 __txt h2 等） ========== */
.inquiry-cta h2,
.solutions-cta h2,
.solutions-cta__txt h2,
.news-article-cta h2,
.news-article-cta__inner h2,
.tech-cta h2,
.tech-cta__txt h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  color: #fff !important;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

/* ========== 描述段（同样高特异性覆盖） ========== */
.inquiry-cta p,
.solutions-cta p,
.solutions-cta__txt p,
.news-article-cta p,
.news-article-cta__inner p,
.tech-cta p,
.tech-cta__txt p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85) !important;
  margin: 0;
  max-width: 720px;
}

/* ========== inquiry-cta（居中堆叠版） ========== */
.inquiry-cta .container {
  position: relative;
  text-align: center;
  max-width: 880px;
}
.inquiry-cta p { margin: 0 auto var(--sp-5); }
.inquiry-cta__buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== solutions-cta / news-article-cta / tech-cta（左文 + 右按钮） ========== */
.solutions-cta__inner,
.news-article-cta__inner,
.tech-cta__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}
.solutions-cta__actions,
.news-article-cta__actions,
.tech-cta__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* ========== 按钮统一：主金 / 副白轮廓 ========== */
.inquiry-cta .btn-accent,
.solutions-cta .btn-accent,
.news-article-cta .btn-accent,
.tech-cta .btn-accent {
  background: #ffdb6a;
  color: #0e1a2b !important;
  font-weight: 800;
  padding: 14px 28px;
  border-radius: 8px;
  transition: all 0.25s ease;
  border: 2px solid #ffdb6a;
}
.inquiry-cta .btn-accent:hover,
.solutions-cta .btn-accent:hover,
.news-article-cta .btn-accent:hover,
.tech-cta .btn-accent:hover {
  background: #ffe69b;
  border-color: #ffe69b;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255,219,106,0.30);
}
.inquiry-cta .btn-outline,
.inquiry-cta .btn-outline-light,
.solutions-cta .btn-outline,
.solutions-cta .btn-outline-light,
.news-article-cta .btn-outline,
.news-article-cta .btn-outline-light,
.tech-cta .btn-outline,
.tech-cta .btn-outline-light {
  background: rgba(255,255,255,0.05) !important;
  color: #fff !important;
  border: 2px solid rgba(255,255,255,0.65) !important;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: 8px;
  transition: all 0.25s ease;
}
.inquiry-cta .btn-outline:hover,
.inquiry-cta .btn-outline-light:hover,
.solutions-cta .btn-outline:hover,
.solutions-cta .btn-outline-light:hover,
.news-article-cta .btn-outline:hover,
.news-article-cta .btn-outline-light:hover,
.tech-cta .btn-outline:hover,
.tech-cta .btn-outline-light:hover {
  border-color: #ffdb6a !important;
  color: #ffdb6a !important;
  background: rgba(255,219,106,0.12) !important;
}
/* btn-ghost 也统一（提高对比度） */
.inquiry-cta .btn-ghost,
.solutions-cta .btn-ghost,
.news-article-cta .btn-ghost,
.tech-cta .btn-ghost {
  color: rgba(255,255,255,0.92) !important;
  background: transparent;
  border: 0;
  font-weight: 600;
  padding: 13px 14px;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: rgba(255,219,106,0.50);
}
.inquiry-cta .btn-ghost:hover,
.solutions-cta .btn-ghost:hover,
.news-article-cta .btn-ghost:hover,
.tech-cta .btn-ghost:hover {
  color: #ffdb6a !important;
  text-decoration-color: #ffdb6a;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .inquiry-cta, .solutions-cta, .news-article-cta, .tech-cta { padding: 60px 0; }
  .solutions-cta__inner,
  .news-article-cta__inner,
  .tech-cta__inner {
    grid-template-columns: 1fr;
    gap: 28px;
    text-align: center;
  }
  .solutions-cta__actions,
  .news-article-cta__actions,
  .tech-cta__actions {
    justify-content: center;
  }
  .solutions-cta p,
  .news-article-cta p,
  .tech-cta p { margin: 0 auto; }
}
@media (max-width: 640px) {
  .inquiry-cta h2, .solutions-cta h2, .news-article-cta h2, .tech-cta h2 { font-size: 24px; }
  .inquiry-cta p, .solutions-cta p, .news-article-cta p, .tech-cta p { font-size: 14px; }
  .inquiry-cta .btn-accent,
  .solutions-cta .btn-accent,
  .news-article-cta .btn-accent,
  .tech-cta .btn-accent,
  .inquiry-cta .btn-outline,
  .solutions-cta .btn-outline,
  .news-article-cta .btn-outline,
  .tech-cta .btn-outline { padding: 12px 22px; font-size: 14px; }
}

/* ============ 在线联系浮窗（桌面端右侧中部圆圈 CTA）============ */
.online-contact {
  position: fixed;
  right: 24px;
  top: 50%;
  margin-top: -32px; /* 64 / 2，垂直居中 */
  z-index: 998;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #d9302a;
  color: #fff !important;
  text-decoration: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  letter-spacing: 0;
  box-shadow:
    0 6px 20px rgba(217, 48, 42, 0.28),
    0 2px 4px rgba(217, 48, 42, 0.14);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.online-contact:hover {
  transform: scale(1.08);
  box-shadow:
    0 10px 26px rgba(217, 48, 42, 0.36),
    0 4px 8px rgba(217, 48, 42, 0.18);
}
/* 移动端（≤768px）由 .mobile-cta 底部条接管，浮窗隐藏 */
@media (max-width: 768px) {
  .online-contact { display: none; }
}