/*
  金码软件 - 经典企业蓝主题 (classic-blue)
  结构级还原 Zz_ginmine.com。仅作用于经典结构组件（.classic-*），不影响电影风 DOM。
  更新日期: 2026-07-30
*/

@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@300;400;700;900&display=swap');

.classic-site {
  --cb-blue: #004d8c;
  --cb-dark-blue: #0d1d31;
  --cb-grey-blue: #435469;
  --cb-ink: #6d7a83;
  --cb-amber: #f28f00;
  --cb-bg: #fbfbfb;
  --cb-bg-alt: #f5f5f5;
  --cb-line: #e8e8e8;
  --cb-radius: 10px;
  --cb-container: 1200px;

  font-family: 'Roboto Slab', 'Microsoft YaHei', sans-serif;
  color: var(--cb-ink);
  background: var(--cb-bg);
}

.classic-site *,
.classic-site *::before,
.classic-site *::after {
  box-sizing: border-box;
}

.classic-site .container {
  width: 100%;
  max-width: var(--cb-container);
  margin: 0 auto;
  padding: 0 15px;
}

.classic-site h1,
.classic-site h2,
.classic-site h3,
.classic-site h4 {
  font-family: inherit;
  color: var(--cb-dark-blue);
  margin: 0;
}

.classic-site a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
}

/* --- 通用按钮 --- */
.classic-btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: var(--cb-radius);
  font-size: 16px;
  font-weight: 700;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  border: 1px solid transparent;
}
.classic-btn-primary {
  background: var(--cb-blue);
  color: #fff;
}
.classic-btn-primary:hover {
  background: var(--cb-grey-blue);
  color: #fff;
}
.classic-btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}
.classic-btn-ghost:hover {
  background: #fff;
  color: var(--cb-blue);
}

/* --- 通用区块标题 --- */
.classic-section-title {
  font-size: 30px;
  font-weight: 900;
  text-align: center;
  color: var(--cb-dark-blue);
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 18px;
}
.classic-section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--cb-blue);
}
.classic-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 12px;
}
.classic-section-head .classic-section-title {
  margin-bottom: 0;
  text-align: left;
  padding-bottom: 14px;
}
.classic-section-head .classic-section-title::after {
  left: 0;
  transform: none;
}
.classic-more-link {
  color: var(--cb-blue);
  font-weight: 700;
  font-size: 15px;
}
.classic-more-link:hover {
  color: var(--cb-amber);
}
.classic-section-actions,
.classic-carousel-controls {
  display: flex;
  align-items: center;
}
.classic-section-actions {
  gap: 18px;
}
.classic-carousel-controls {
  gap: 8px;
}
.classic-carousel-control {
  width: 42px;
  height: 42px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--cb-line);
  border-radius: 50%;
  background: #fff;
  color: var(--cb-blue);
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s ease-in-out, border-color 0.2s ease-in-out, color 0.2s ease-in-out;
}
.classic-carousel-control:hover,
.classic-carousel-control:focus-visible {
  border-color: var(--cb-blue);
  background: var(--cb-blue);
  color: #fff;
  outline: none;
}
/* 经典蓝首页容器：透明，白底由 .classic-site 提供，避免透出深色 */
.classic-site .classic-home {
  background: transparent;
  color: var(--cb-ink);
}
.classic-site .page-section {
  padding: 70px 0;
  background: #fff;
}
.classic-site .page-section.light {
  background: var(--cb-bg-alt);
}
/* 案例与新闻区块：明确白底，避免透出底层深色背景 */
.classic-site .classic-case,
.classic-site .classic-news,
.classic-site .classic-whyus {
  background: #fff;
}

/* --- 顶部通栏 --- */
.classic-site .top-line {
  background: var(--cb-dark-blue);
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  height: 40px;
}
.classic-site .top-line .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 40px;
  min-width: 0;
}
.classic-site .top-line .hot-line {
  min-width: 0;
  overflow: hidden;
  color: var(--cb-amber);
  font-weight: 700;
}
.classic-site .top-line .hot-line span {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.classic-site .top-line .user-menu {
  flex: 0 0 auto;
  display: flex;
  justify-content: flex-end;
  gap: 22px;
  max-width: 62%;
  margin: 0;
  padding: 0;
  list-style: none;
}
.classic-site .top-line .user-menu a {
  white-space: nowrap;
}
.classic-site .top-line .user-menu a:hover {
  color: #fff;
}

/* --- 头部 --- */
.classic-header {
  background: #fff;
  border-bottom: 1px solid var(--cb-line);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}
.classic-header .header-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.classic-header .logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.classic-header .logo img {
  height: 46px;
  object-fit: contain;
}
.classic-header .logo-text strong {
  display: block;
  font-size: 20px;
  font-weight: 900;
  color: var(--cb-dark-blue);
  line-height: 1.2;
}
.classic-header .logo-text em {
  font-style: normal;
  font-size: 12px;
  color: var(--cb-ink);
}

/* 导航 sf-menu */
.classic-header .sf-menu {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}
.classic-header .sf-menu > li {
  position: relative;
}
.classic-header .sf-menu > li > a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 84px;
  padding: 0 20px;
  font-size: 16px;
  color: var(--cb-dark-blue);
}
.classic-header .sf-menu > li > a:hover,
.classic-header .sf-menu > li > a.active {
  color: var(--cb-blue);
}
.classic-header .sf-menu .sub-caret {
  font-size: 10px;
  transition: transform 0.25s ease;
}
.classic-header .sf-menu > li:hover .sub-caret {
  transform: rotate(180deg);
}
/* 桥接区：填补一级项与浮起下拉之间的 8px 缝隙，避免鼠标经过空白时下拉闪退 */
.classic-header .sf-menu > li.has-sub > a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 12px;
}

/* ── 下拉菜单：浮起的独立蓝卡片 ───────────────────────── */
.classic-header .sf-menu .dr-menu {
  position: absolute;
  top: calc(100% - 8px); /* 与导航栏留出呼吸间隙，形成悬浮卡片感 */
  left: 12px;
  /* 宽度自适应最长子项，同时给出上下限：短项不空旷、超长项也不铺满屏 */
  width: max-content;
  min-width: 184px;
  max-width: 320px;
  background: #fff;
  border-radius: 14px;
  box-shadow:
    0 2px 6px rgba(13, 29, 49, 0.06),
    0 18px 40px rgba(13, 29, 49, 0.16);
  list-style: none;
  margin: 0;
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.98);
  transform-origin: top left;
  transition:
    opacity 0.22s ease,
    transform 0.22s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.22s;
  z-index: 200;
  overflow: hidden;
}
/* 顶部点睛细条：主蓝 → 琥珀渐变 */
.classic-header .sf-menu .dr-menu::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cb-blue), var(--cb-amber));
}
/* 靠右的一级菜单，其下拉右对齐，避免子菜单溢出视口右侧 */
.classic-header .sf-menu > li:last-child .dr-menu {
  left: auto;
  right: 12px;
  transform-origin: top right;
}
.classic-header .sf-menu > li:hover .dr-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.classic-header .sf-menu .dr-menu > li {
  position: relative;
}
.classic-header .sf-menu .dr-menu > li + li {
  margin-top: 2px;
}
.classic-header .sf-menu .dr-menu > li > a {
  position: relative;
  display: flex;
  align-items: center;
  padding: 11px 18px 11px 26px;
  border-radius: 9px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--cb-grey-blue);
  /* 单行显示：宁可整体加宽（受 max-content 约束）也不换行；超长再省略 */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    padding 0.2s ease;
}
/* 每项左侧的高亮竖条：默认收起，hover 展开 */
.classic-header .sf-menu .dr-menu > li > a::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 50%;
  width: 3px;
  height: 0;
  border-radius: 3px;
  background: var(--cb-blue);
  transform: translateY(-50%);
  transition: height 0.22s ease;
}
.classic-header .sf-menu .dr-menu > li > a:hover {
  background: rgba(0, 77, 140, 0.07);
  color: var(--cb-blue);
  padding-left: 30px;
}
.classic-header .sf-menu .dr-menu > li > a:hover::before {
  height: 16px;
}

/* 搜索框 */
.classic-header .header-search-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--cb-line);
  border-radius: var(--cb-radius);
  overflow: hidden;
  background: #f5f5f5;
}
.classic-header .header-search-box input {
  border: none;
  background: transparent;
  padding: 8px 12px;
  outline: none;
  font-size: 14px;
  width: 150px;
  color: var(--cb-dark-blue);
}
.classic-header .header-search-box button {
  border: none;
  background: var(--cb-blue);
  color: #fff;
  padding: 9px 14px;
  cursor: pointer;
}

.classic-main {
  min-height: 50vh;
}

/* --- 首屏轮播 --- */
.classic-hero {
  position: relative;
}
.classic-hero .classic-hero-slide {
  position: relative;
  height: 560px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--cb-dark-blue);
}
.classic-hero .classic-hero-mask {
  position: absolute;
  inset: 0;
  background: transparent;
}
.classic-hero .classic-hero-inner {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}
.classic-hero .classic-hero-caption {
  max-width: 640px;
  color: #fff;
}
.classic-hero .classic-hero-caption h1 {
  font-size: 46px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.28);
}
.classic-hero .classic-hero-caption p {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.94);
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.22);
}
.classic-hero .slick-dots li button::before {
  color: #fff;
  font-size: 10px;
}
.classic-hero .slick-dots li.slick-active button::before {
  color: var(--cb-amber);
}
.classic-hero .classic-hero-controls {
  position: absolute;
  z-index: 5;
  top: 50%;
  left: 24px;
  right: 24px;
  justify-content: space-between;
  transform: translateY(-50%);
  pointer-events: none;
}
.classic-hero .classic-carousel-control {
  width: 48px;
  height: 48px;
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(13, 29, 49, 0.28);
  color: #fff;
  backdrop-filter: blur(6px);
  pointer-events: auto;
}
.classic-hero .classic-carousel-control:hover,
.classic-hero .classic-carousel-control:focus-visible {
  border-color: #fff;
  background: #005ca8;
}

/* --- 六边形四宫格 (rehex, 尖角上下型) --- */
.classic-hex-grid .info-thumbs {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}
.classic-hex-grid .hex-cell {
  flex: 0 0 25%;
  max-width: 25%;
  padding: 0 15px;
  text-align: center;
  margin-bottom: 20px;
}
.classic-hex-grid .rehex {
  width: 130px;
  height: 150px;
  margin: 0 auto 24px;
  background: var(--cb-blue);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease-in-out;
}
.classic-hex-grid .hex-cell:hover .rehex {
  background: var(--cb-amber);
  transform: translateY(-6px);
}
.classic-hex-grid .rehex .rehex-inner {
  color: #fff;
  font-size: 44px;
  line-height: 1;
}
.classic-hex-grid .hex-caption h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--cb-dark-blue);
}
.classic-hex-grid .hex-caption p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--cb-ink);
}

/* --- 优势 whyus（还原参考站 #index-whyus：左对齐六边形标题 + 2×2 小图文卡片）--- */
.classic-whyus .classic-whyus-head {
  display: flex;
  align-items: center;
  margin-bottom: 30px;
}
.classic-whyus .classic-whyus-hex {
  flex: 0 0 auto;
  width: 50px;
  height: 57px;
  margin-right: 20px;
  background: var(--cb-blue);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
}
.classic-whyus .classic-whyus-heading {
  font-size: 24px;
  font-weight: 900;
  text-transform: uppercase;
  color: var(--cb-dark-blue);
  line-height: 1.2;
}
.classic-whyus .classic-whyus-heading small {
  font-size: 20px;
  font-weight: 300;
  text-transform: none;
  color: var(--cb-grey-blue);
}
.classic-whyus .whyus-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
}
.classic-whyus .whyus-card {
  display: flex;
  align-items: flex-start;
}
.classic-whyus .whyus-card-media {
  flex: 0 0 41.66%;
  max-width: 41.66%;
  position: relative;
  overflow: hidden;
  border-radius: var(--cb-radius);
}
.classic-whyus .whyus-card-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.3s ease-in-out;
}
.classic-whyus .whyus-card:hover .whyus-card-media img {
  transform: scale(1.08);
}
.classic-whyus .whyus-img-empty {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--cb-bg-alt);
}
.classic-whyus .whyus-like {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(0, 77, 140, 0.85);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}
.classic-whyus .whyus-card-body {
  flex: 1 1 auto;
  padding-left: 20px;
}
.classic-whyus .whyus-card-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--cb-dark-blue);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.classic-whyus .whyus-card-text {
  font-size: 14px;
  line-height: 1.9;
  color: var(--cb-ink);
  margin: 0;
}

/* --- 产品系列（结构级还原参考站 #index-portfolio .pl-item/.thumbnail）--- */
.classic-portfolio {
  background: var(--cb-bg-alt);
}
.classic-portfolio .pl-item {
  padding: 0 10px;
}
.classic-portfolio .thumbnail {
  position: relative;
  margin: 0;
  border: none;
  border-radius: 0; /* 去掉圆角 */
  overflow: hidden;
  background: transparent;
  text-align: center;
}
/* 图片区：完整显示、方角、不裁剪 */
.classic-portfolio .media {
  position: relative;
  overflow: hidden;
  border-radius: 0; /* 去掉圆角 */
  aspect-ratio: 380 / 191; /* 参考站产品图 380×191 */
  background: #f3f6fa;
}
.classic-portfolio .media img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* 完整显示图片，不裁剪 */
}
.classic-portfolio .media-empty {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e5edf6, #d6e3f1);
}
/* 悬浮红色遮罩 + 居中「详细」按钮（还原 .caption.hovered）*/
.classic-portfolio .media .caption.hovered {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px;
  background: rgba(220, 20, 60, 0.6);
  opacity: 0;
  transition: opacity 0.25s ease-in-out;
  z-index: 2;
}
.classic-portfolio .thumbnail:hover .media .caption.hovered {
  opacity: 1;
}
.classic-portfolio .caption-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border: 1px solid #fff;
  border-radius: 6px;
  color: #fff;
  font-size: 14px;
  line-height: 1;
  background: transparent;
  transition: all 0.2s ease-in-out;
}
.classic-portfolio .caption-link:hover {
  background: #fff;
  color: #004d8c;
}
/* 图片下方文字区：标题 + 金色 5 星（在卡片边框内）*/
.classic-portfolio .thumbnail > .caption {
  padding: 18px 10px 4px;
  overflow: hidden;
}
.classic-portfolio .caption-title {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
}
.classic-portfolio .caption-title a {
  color: var(--cb-dark-blue);
}
.classic-portfolio .caption-title a:hover {
  color: var(--cb-blue);
}
.classic-portfolio .caption-rating {
  display: inline-block;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1;
}
.classic-portfolio .caption-rating .star::before {
  content: '\2605';
  padding-right: 4px;
  color: #d3d3d3;
}
.classic-portfolio .caption-rating .star.active::before {
  color: #ffb400;
}
.classic-portfolio .slick-list,
.classic-news .slick-list {
  margin: 0 -10px;
  padding: 6px 0 18px;
}

/* --- 案例网格 --- */
.classic-case .case-grid {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -12px;
}
.classic-case .case-cell {
  flex: 0 0 33.333%;
  max-width: 33.333%;
  padding: 0 12px;
  margin-bottom: 24px;
}
.classic-case .case-item {
  display: block;
  border-radius: var(--cb-radius);
  overflow: hidden;
  position: relative;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease-in-out;
}
.classic-case .case-item:hover {
  box-shadow: 0 8px 24px rgba(0, 77, 140, 0.15);
  transform: translateY(-2px);
}
.classic-case .case-img {
  width: 100%;
  height: 260px;
  overflow: hidden;
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.classic-case .case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease-in-out;
}
.classic-case .case-item:hover .case-img img {
  transform: scale(1.08);
}
/* 图片上的渐变遮罩层 */
.classic-case .case-img::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.02) 50%,
    rgba(0, 0, 0, 0.08) 100%
  );
  pointer-events: none;
}
/* 标题区域 */
.classic-case .case-caption {
  padding: 20px 18px;
  background: #fff;
  border-top: 3px solid var(--cb-blue);
  position: relative;
}
.classic-case .case-caption h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--cb-dark-blue);
  line-height: 1.5;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease-in-out;
}
.classic-case .case-item:hover .case-caption h3 {
  color: var(--cb-blue);
}
/* 小装饰点 */
.classic-case .case-caption::before {
  content: '';
  position: absolute;
  top: -3px;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--cb-amber);
  transition: width 0.3s ease-in-out;
}
.classic-case .case-item:hover .case-caption::before {
  width: 80px;
}

/* --- 新闻资讯 --- */
.classic-news .news-grid {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -12px;
}
.classic-news .classic-news-slide {
  height: 100%;
  padding: 0 10px 6px;
}
.classic-news .slick-track {
  display: flex;
}
.classic-news .slick-slide {
  height: auto;
}
.classic-news .slick-slide > div,
.classic-news .classic-news-slide {
  height: 100%;
}
.classic-news .news-cell {
  flex: 0 0 33.333%;
  max-width: 33.333%;
  padding: 0 12px;
  margin-bottom: 24px;
}
.classic-news .news-item {
  display: block;
  background: #fff;
  border: 1px solid var(--cb-line);
  border-radius: 0; /* 去掉圆角 */
  overflow: hidden;
  height: 100%;
  transition: all 0.2s ease-in-out;
}
.classic-news .news-item:hover {
  box-shadow: 0 10px 26px rgba(0, 77, 140, 0.12);
}
.classic-news .news-img {
  aspect-ratio: 19 / 10; /* 参考站新闻图 380×200 */
  overflow: hidden;
  background: #f3f6fa;
}
.classic-news .news-img img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* 完整显示图片，不裁剪 */
}
.classic-news .news-caption {
  padding: 18px 16px;
}
.classic-news .news-caption time {
  display: block;
  color: var(--cb-blue);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}
.classic-news .news-caption h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--cb-dark-blue);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.classic-news .news-caption p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--cb-ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- 合作伙伴 --- */
.classic-partners .partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 90px;
  margin: 0 8px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--cb-line);
  border-radius: var(--cb-radius);
  overflow: hidden;
  filter: grayscale(1);
  opacity: 0.7;
  transition: all 0.2s ease-in-out;
}
.classic-partners .partner-item:hover {
  filter: none;
  opacity: 1;
}
.classic-partners .partner-item img {
  display: block;
  width: auto;
  height: auto;
  max-width: 88%;
  max-height: 58px;
  transform: scale(1.16);
  transform-origin: center;
}

/* --- 行动号召 --- */
.classic-cta {
  background: var(--cb-dark-blue);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
  border-top: 3px solid var(--cb-amber);
}
.classic-cta .classic-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 1fr);
  align-items: center;
  gap: 48px;
}
.classic-cta .classic-cta-eyebrow {
  display: inline-block;
  color: var(--cb-amber);
  letter-spacing: 3px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}
.classic-cta h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
}
.classic-cta .classic-cta-body p {
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 14px;
}
.classic-cta .classic-cta-body p:last-child {
  margin-bottom: 0;
}

/* 右侧面板：热线高亮块 + 行动按钮 */
.classic-cta .classic-cta-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 32px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: calc(var(--cb-radius) + 4px);
  backdrop-filter: blur(4px);
}
.classic-cta .classic-cta-phone {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: center;
  padding: 20px;
  border-radius: var(--cb-radius);
  background: linear-gradient(135deg, var(--cb-amber), #ffab33);
  color: #3a2400;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.classic-cta .classic-cta-phone:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(242, 143, 0, 0.4);
}
.classic-cta .classic-cta-phone-label {
  font-size: 13px;
  letter-spacing: 2px;
  opacity: 0.85;
}
.classic-cta .classic-cta-phone-num {
  font-size: 27px;
  font-weight: 800;
  letter-spacing: 1px;
  line-height: 1.1;
}
.classic-cta .classic-cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.classic-cta .classic-cta-actions .classic-btn {
  flex: 1;
  text-align: center;
  min-width: 120px;
}
/* 深底 CTA 内的次要按钮用白色描边 */
.classic-cta .classic-btn-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.classic-cta .classic-btn-ghost:hover {
  background: #fff;
  color: var(--cb-dark-blue);
}

@media (max-width: 900px) {
  .classic-cta {
    background-attachment: scroll;
  }
  .classic-cta .classic-cta-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* --- 页脚 --- */
.classic-footer {
  background: var(--cb-dark-blue);
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 0;
}
.classic-footer .footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(150px, 0.75fr) minmax(0, 1.7fr);
  column-gap: 42px;
  row-gap: 30px;
  margin: 0 auto;
}
.classic-footer .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.classic-footer .footer-logo img {
  height: 40px;
}
.classic-footer .footer-logo strong {
  color: #fff;
  font-size: 18px;
  font-weight: 900;
}
.classic-footer .footer-desc {
  font-size: 14px;
  line-height: 1.9;
}
.classic-footer .footer-qr img {
  width: 120px;
  height: 120px;
  background: #fff;
  padding: 6px;
  border-radius: 6px;
}
.classic-footer .footer-col {
  min-width: 0;
  padding: 0 15px;
  margin-bottom: 30px;
}
.classic-footer .footer-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 28px;
}
.classic-footer .footer-contact-info {
  min-width: 0;
}
.classic-footer .footer-contact .footer-qr {
  min-width: 120px;
  text-align: center;
}
.classic-footer .footer-contact .footer-qr h4 {
  white-space: nowrap;
}
.classic-footer .footer-contact .footer-qr img {
  display: block;
  width: 104px;
  height: 104px;
  margin: 0 auto;
  object-fit: contain;
}
.classic-footer .footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.classic-footer .footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.classic-footer .footer-col li {
  margin-bottom: 10px;
  font-size: 14px;
}
.classic-footer .footer-col a:hover {
  color: #fff;
}
.classic-footer .footer-contact p {
  font-size: 14px;
  line-height: 1.9;
  margin: 0 0 8px;
}
.classic-footer .footer-contact .footer-hotline {
  color: var(--cb-amber);
  font-size: 22px;
  font-weight: 900;
}
.classic-footer .footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 20px;
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}
.classic-footer .footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.classic-footer .footer-bottom .legal-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.classic-footer .footer-bottom .legal-links a:hover {
  color: #fff;
}

/* --- 响应式 --- */
@media (max-width: 992px) {
  .classic-hex-grid .hex-cell {
    flex-basis: 50%;
    max-width: 50%;
  }
  .classic-case .case-cell,
  .classic-news .news-cell {
    flex-basis: 50%;
    max-width: 50%;
  }
  .classic-footer .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .classic-footer .footer-contact {
    grid-column: 1 / -1;
  }
  .classic-whyus .whyus-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .classic-header .sf-menu,
  .classic-header .header-search-box,
  .classic-site .top-line .user-menu {
    display: none;
  }
  .classic-hero .classic-hero-slide {
    height: 400px;
  }
  .classic-hero .classic-hero-caption h1 {
    font-size: 30px;
  }
  .classic-hero .classic-hero-controls {
    left: 12px;
    right: 12px;
  }
  .classic-hero .classic-carousel-control {
    width: 42px;
    height: 42px;
  }
  .classic-section-head {
    align-items: flex-end;
  }
  .classic-section-actions {
    width: 100%;
    justify-content: space-between;
  }
  .classic-hex-grid .hex-cell,
  .classic-case .case-cell,
  .classic-news .news-cell {
    flex-basis: 100%;
    max-width: 100%;
  }
  .classic-footer .footer-top {
    grid-template-columns: 1fr;
  }
  .classic-footer .footer-contact {
    grid-column: auto;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .classic-footer .footer-contact .footer-qr {
    min-width: 0;
    text-align: left;
  }
  .classic-footer .footer-contact .footer-qr img,
  .classic-footer .footer-contact .footer-qr-image {
    width: 112px;
    height: 112px;
    margin: 0;
    object-fit: contain;
  }
  .classic-section-title {
    font-size: 24px;
  }
  .classic-whyus .classic-whyus-heading {
    font-size: 20px;
  }
  .classic-whyus .classic-whyus-heading small {
    display: none;
  }
  .classic-whyus .whyus-card {
    flex-direction: column;
  }
  .classic-whyus .whyus-card-media {
    flex-basis: auto;
    max-width: 100%;
    width: 100%;
    margin-bottom: 16px;
  }
  .classic-whyus .whyus-card-body {
    padding-left: 0;
  }
  .classic-whyus .whyus-card-title {
    white-space: normal;
  }
  .classic-partners .partner-item {
    height: 84px;
    padding: 6px;
  }
  .classic-partners .partner-item img {
    width: auto;
    height: auto;
    max-width: 88%;
    max-height: 52px;
  }
}

.classic-case-grid-5 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 24px;
  border: 0;
}

.classic-case-grid-5 .classic-case-cell {
  min-width: 0;
  border: 0;
}

.classic-case-grid-5 .case-item {
  display: block;
  height: 100%;
  border: 0;
  border-radius: 0;
}

.classic-case-grid-5 .case-img {
  position: relative;
  width: 100%;
  height: auto;
  aspect-ratio: 48 / 25; /* 参考站案例图 480×250 */
  border-radius: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef3f7;
}

.classic-case-grid-5 .case-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 0;
  filter: brightness(0.94) contrast(1.04);
  transition: filter 0.55s ease;
}

.classic-case-grid-5 .case-item:hover .case-img img {
  transform: none;
  filter: brightness(1) contrast(1.06) saturate(1.04);
}

.classic-case-grid-5 .case-caption {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 24px 22px;
  background: linear-gradient(0deg, rgba(13, 29, 49, 0.88) 0%, rgba(13, 29, 49, 0.34) 34%, rgba(13, 29, 49, 0) 62%);
  pointer-events: none;
  transition: background 0.35s ease;
}

.classic-case-grid-5 .case-caption-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: #7fd4ff;
  font-size: 12px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.1em;
}

.classic-case-grid-5 .case-caption h3 {
  margin: 0;
  color: #fff;
  font-size: clamp(16px, 1.35vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.58);
  transform: translateY(8px);
  transition: transform 0.35s ease, color 0.35s ease;
}

.classic-case-grid-5 .case-item:hover .case-caption {
  background: linear-gradient(0deg, rgba(13, 29, 49, 0.94) 0%, rgba(13, 29, 49, 0.56) 58%, rgba(0, 77, 140, 0.14) 100%);
}

.classic-case-grid-5 .case-item:hover .case-caption h3 {
  color: #7fd4ff;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .classic-case-grid-5 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .classic-case-grid-5 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 400px) {
  .classic-case-grid-5 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 992px) {
  .classic-portfolio .slick-list,
  .classic-news .slick-list,
  .classic-partners .slick-list {
    margin-right: 0 !important;
    margin-left: 0 !important;
    overflow: hidden !important;
  }

  .classic-portfolio .pl-item {
    padding-right: 0 !important;
    padding-left: 0 !important;
  }

  .classic-news .classic-news-slide {
    padding-right: 0 !important;
    padding-left: 0 !important;
  }

  .classic-partners .slick-slide > div {
    padding-right: 5px;
    padding-left: 5px;
  }
}

.classic-mobile-card-stack {
  display: grid;
  gap: 18px;
}

.classic-mobile-product-stack .pl-item,
.classic-mobile-news-stack .news-item {
  margin: 0;
  padding: 0;
}

.classic-mobile-partner-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.classic-mobile-partner-grid .partner-item {
  margin: 0;
}