/* ===== Sub-page shared styles ===== */

/* Page banner */
.page-banner {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, rgba(15,23,42,.7) 0%, rgba(30,58,138,.7) 30%, rgba(37,99,235,.6) 60%, rgba(124,58,237,.6) 100%),
              url('../images/article-bg.jpg') center/cover no-repeat;
  position: relative; overflow: hidden; text-align: center;
}
.page-banner::before {
  content: ''; position: absolute; top: -20%; right: -10%; width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,.3) 0%, transparent 70%);
  border-radius: 50%; animation: breathe 6s ease-in-out infinite;
}
.page-banner::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 60px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60'%3E%3Cpath fill='%23ffffff' d='M0,40 C240,60 480,10 720,40 C960,60 1200,20 1440,40 L1440,60 L0,60 Z'/%3E%3C/svg%3E") no-repeat bottom;
  background-size: cover;
}
.page-banner .container { position: relative; z-index: 1; }
.page-banner h1 {
  font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 12px;
  text-shadow: 0 2px 20px rgba(0,0,0,.2);
}
.page-banner .breadcrumb {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 14px; color: rgba(255,255,255,.7);
}
.page-banner .breadcrumb a { color: rgba(255,255,255,.7); transition: color .2s; }
.page-banner .breadcrumb a:hover { color: #fff; }
.page-banner .breadcrumb span { color: rgba(255,255,255,.5); }

/* Page content area */
.page-content { padding: 60px 0 80px; }

/* ===== News List Page ===== */
/* ===== News Layout - 双栏混排 ===== */
.news-layout {
  display: grid; grid-template-columns: 1fr 300px; gap: 32px; align-items: start;
}
.news-filter-bar {
  display: flex; justify-content: flex-start; gap: 10px; margin-bottom: 24px; flex-wrap: wrap;
}
.news-filter-btn {
  padding: 6px 18px; border-radius: 20px; border: 2px solid var(--gray-200);
  background: #fff; font-size: 13px; font-weight: 600; color: var(--gray-700);
  cursor: pointer; transition: all .3s;
}
.news-filter-btn.active, .news-filter-btn:hover {
  background: var(--gradient); color: #fff; border-color: transparent;
  box-shadow: 0 4px 16px rgba(37,99,235,.3);
}

/* 左图右文列表 */
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-list-item {
  display: flex; gap: 20px; background: #fff; border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
  transition: all .3s; text-decoration: none;
}
.news-list-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-color); }
.news-list-item-img { width: 220px; min-width: 220px; height: 150px; overflow: hidden; }
.news-list-item-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-list-item:hover .news-list-item-img img { transform: scale(1.05); }
.news-list-item-body { padding: 16px 16px 16px 0; display: flex; flex-direction: column; justify-content: center; flex: 1; }
.news-list-item-body .news-tag { margin-bottom: 8px; display: inline-block; width: fit-content; }
.news-list-item-body h3 {
  font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px;
  line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.news-list-item:hover h3 { color: var(--blue); }
.news-list-item-body p {
  font-size: 13px; color: var(--gray-500); line-height: 1.7; margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-list-item-meta {
  display: flex; align-items: center; gap: 16px;
  font-size: 12px; color: var(--gray-500);
}

/* 右侧边栏 */
.news-sidebar { position: sticky; top: 90px; }
.sidebar-box {
  background: #fff; border-radius: var(--radius); padding: 20px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); margin-bottom: 20px;
}
.sidebar-title {
  font-size: 16px; font-weight: 700; color: var(--gray-900); margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 2px solid var(--gray-100);
}
.sidebar-title i { color: var(--orange); margin-right: 6px; }
.sidebar-search {
  display: flex; gap: 8px;
}
.sidebar-search input {
  flex: 1; padding: 10px 14px; border: 2px solid var(--gray-200); border-radius: 8px;
  font-size: 14px; outline: none; transition: border-color .2s;
}
.sidebar-search input:focus { border-color: var(--blue); }
.sidebar-search button {
  padding: 10px 14px; background: var(--gradient); color: #fff; border: none;
  border-radius: 8px; cursor: pointer; transition: opacity .2s;
}
.sidebar-search button:hover { opacity: .85; }
.sidebar-hot-list { list-style: none; padding: 0; margin: 0; }
.sidebar-hot-list li {
  display: flex; align-items: flex-start; gap: 12px; padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
}
.sidebar-hot-list li:last-child { border-bottom: none; }
.sidebar-hot-list .hot-rank {
  width: 24px; height: 24px; border-radius: 6px; background: var(--gray-200);
  color: var(--gray-700); font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.sidebar-hot-list li:nth-child(1) .hot-rank { background: #ef4444; color: #fff; }
.sidebar-hot-list li:nth-child(2) .hot-rank { background: #f97316; color: #fff; }
.sidebar-hot-list li:nth-child(3) .hot-rank { background: #eab308; color: #fff; }
.sidebar-hot-list a {
  font-size: 14px; color: var(--gray-700); text-decoration: none; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.sidebar-hot-list a:hover { color: var(--blue); }
.sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sidebar-tag {
  padding: 6px 14px; border-radius: 16px; background: var(--gray-50);
  border: 1px solid var(--gray-200); font-size: 13px; color: var(--gray-600);
  text-decoration: none; transition: all .2s;
}
.sidebar-tag:hover { background: var(--blue); color: #fff; border-color: var(--blue); }

/* Headlines page layout */
.headlines-page-layout {
  display: grid; grid-template-columns: 1fr 300px; gap: 32px; align-items: start;
}

/* 媒体报道侧边栏 */
.sidebar-media-list { list-style: none; padding: 0; margin: 0; }
.sidebar-media-list li {
  display: flex; align-items: flex-start; gap: 10px; padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
}
.sidebar-media-list li:last-child { border-bottom: none; }
.media-badge {
  flex-shrink: 0; padding: 2px 8px; border-radius: 4px;
  background: var(--gradient); color: #fff; font-size: 11px; font-weight: 700;
  white-space: nowrap;
}
.sidebar-media-list a {
  font-size: 13px; color: var(--gray-700); text-decoration: none; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.sidebar-media-list a:hover { color: var(--blue); }

/* 品牌动态侧边栏 */
.sidebar-brand-list { list-style: none; padding: 0; margin: 0; }
.sidebar-brand-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--gray-100);
}
.sidebar-brand-list li:last-child { border-bottom: none; }
.sidebar-brand-list a {
  font-size: 13px; color: var(--gray-700); text-decoration: none; line-height: 1.5;
  flex: 1; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .2s;
}
.sidebar-brand-list a:hover { color: var(--blue); }
.brand-date { font-size: 12px; color: var(--gray-400); white-space: nowrap; }

/* Pagination */
.pagination {
  display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 48px;
}
.page-btn {
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--gray-200);
  background: #fff; font-size: 14px; font-weight: 600; color: var(--gray-700);
  cursor: pointer; transition: all .2s;
  display: flex; align-items: center; justify-content: center;
}
.page-btn:hover, .page-btn.active {
  background: var(--gradient); color: #fff; border-color: transparent;
  box-shadow: 0 4px 12px rgba(37,99,235,.25);
}
.page-btn.disabled { opacity: .4; pointer-events: none; }
.page-dots { font-size: 14px; color: var(--gray-500); }

/* ===== Article Detail Page ===== */
.article-layout {
  display: flex; gap: 40px;
}
.article-main { flex: 1; min-width: 0; }
.article-sidebar { width: 300px; flex-shrink: 0; }

.article-header { margin-bottom: 32px; }
.article-header h1 {
  font-size: 28px; font-weight: 800; color: var(--gray-900); line-height: 1.5;
  margin-bottom: 16px;
}
.article-meta {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--gray-500);
}
.article-meta i { margin-right: 4px; color: var(--blue); }

.article-body {
  font-size: 15px; color: var(--gray-700); line-height: 2;
}
.article-body h2 {
  font-size: 22px; font-weight: 700; color: var(--gray-900);
  margin: 32px 0 16px; padding-left: 12px;
  border-left: 4px solid var(--blue);
}
.article-body h3 {
  font-size: 18px; font-weight: 700; color: var(--gray-900);
  margin: 24px 0 12px;
}
.article-body p { margin-bottom: 16px; }
.article-body img {
  width: 100%; border-radius: 12px; margin: 20px 0;
  box-shadow: var(--shadow-sm);
}
.article-body blockquote {
  background: var(--blue-light); border-left: 4px solid var(--blue);
  padding: 16px 20px; border-radius: 0 12px 12px 0; margin: 20px 0;
  font-style: italic; color: var(--gray-700);
}
.article-body ul, .article-body ol {
  padding-left: 24px; margin-bottom: 16px;
}
.article-body li { margin-bottom: 8px; }

/* Article tags */
.article-tags {
  display: flex; gap: 8px; flex-wrap: wrap; margin-top: 32px;
  padding-top: 24px; border-top: 1px solid var(--gray-200);
}
.article-tags a {
  padding: 6px 16px; border-radius: 20px; background: var(--gray-100);
  font-size: 13px; color: var(--gray-700); transition: all .2s;
}
.article-tags a:hover { background: var(--blue); color: #fff; }

/* Article nav */
.article-nav {
  display: flex; justify-content: space-between; gap: 20px;
  margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--gray-200);
}
.article-nav a {
  font-size: 14px; color: var(--gray-700); transition: color .2s;
  max-width: 45%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.article-nav a:hover { color: var(--blue); }
.article-nav .prev::before { content: '← '; color: var(--blue); }
.article-nav .next::after { content: ' →'; color: var(--blue); }

/* Sidebar widgets */
.sidebar-widget {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100); overflow: hidden; margin-bottom: 24px;
}
.sidebar-widget-title {
  font-size: 16px; font-weight: 700; padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100); color: var(--gray-900);
  position: relative;
}
.sidebar-widget-title::before {
  content: ''; position: absolute; left: 0; top: 12px; bottom: 12px; width: 3px;
  background: var(--gradient); border-radius: 2px;
}
.sidebar-list { padding: 12px 20px; }
.sidebar-list-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 0;
  border-bottom: 1px solid var(--gray-100); transition: all .2s;
}
.sidebar-list-item:last-child { border-bottom: none; }
.sidebar-list-item:hover { padding-left: 4px; }
.sidebar-list-item:hover .sidebar-item-title { color: var(--blue); }
.sidebar-rank {
  width: 22px; height: 22px; border-radius: 4px; background: var(--gray-200);
  color: var(--gray-500); font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.sidebar-rank.r1 { background: #E53E3E; color: #fff; }
.sidebar-rank.r2 { background: var(--orange); color: #fff; }
.sidebar-rank.r3 { background: #F6AD55; color: #fff; }
.sidebar-item-title {
  font-size: 13px; color: var(--gray-700); line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1;
}

/* Sidebar CTA */
.sidebar-cta {
  background: var(--gradient); border-radius: var(--radius); padding: 28px 24px;
  text-align: center; color: #fff; margin-bottom: 24px;
}
.sidebar-cta h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.sidebar-cta p { font-size: 13px; color: rgba(255,255,255,.8); margin-bottom: 16px; }

/* ===== Course Detail Page ===== */
.course-detail-hero {
  display: flex; gap: 40px; align-items: center;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 40px; margin-top: -40px; position: relative; z-index: 2;
}
.course-detail-img {
  width: 400px; height: 280px; flex-shrink: 0; border-radius: 12px; overflow: hidden;
}
.course-detail-img img { width: 100%; height: 100%; object-fit: cover; }
.course-detail-info { flex: 1; }
.course-detail-info h1 {
  font-size: 28px; font-weight: 800; color: var(--gray-900); margin-bottom: 12px;
}
.course-detail-info .course-stage-tag {
  display: inline-block; padding: 4px 14px; border-radius: 14px;
  font-size: 13px; font-weight: 600; margin-bottom: 16px;
  background: var(--blue-light); color: var(--blue);
}
.course-detail-info p {
  font-size: 15px; color: var(--gray-500); line-height: 1.8; margin-bottom: 20px;
}
.course-highlights {
  display: flex; gap: 24px; margin-bottom: 24px;
}
.course-hl-item { text-align: center; }
.course-hl-item strong {
  display: block; font-size: 24px; font-weight: 800;
  background: var(--gradient); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}
.course-hl-item span { font-size: 13px; color: var(--gray-500); }

.course-sections { margin-top: 48px; }
.course-section-card {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100); padding: 28px 32px; margin-bottom: 20px;
  transition: all .3s;
}
.course-section-card:hover { box-shadow: var(--shadow-color); transform: translateY(-2px); }
.course-section-card h3 {
  font-size: 18px; font-weight: 700; color: var(--gray-900); margin-bottom: 12px;
  display: flex; align-items: center; gap: 10px;
}
.course-section-card h3 .section-icon {
  width: 36px; height: 36px; border-radius: 10px; background: var(--blue-light);
  color: var(--blue); display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.course-section-card p {
  font-size: 14px; color: var(--gray-500); line-height: 1.8;
}
.course-section-card ul {
  list-style: none; padding: 0; margin-top: 12px;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px;
}
.course-section-card li {
  font-size: 13px; color: var(--gray-700); padding-left: 18px; position: relative;
}
.course-section-card li::before {
  content: '✓'; position: absolute; left: 0; color: var(--green); font-weight: 700;
}

/* ===== Responsive for sub-pages ===== */
@media (max-width: 1024px) {
  .news-layout { grid-template-columns: 1fr; }
  .headlines-page-layout { grid-template-columns: 1fr; }
  .news-sidebar { position: static; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .sidebar-box { margin-bottom: 0; }
  .article-layout { flex-direction: column; }
  .article-sidebar { width: 100%; }
  .course-detail-hero { flex-direction: column; }
  .course-detail-img { width: 100%; height: 220px; }
}
@media (max-width: 640px) {
  .page-banner { padding: 110px 0 40px; }
  .page-banner h1 { font-size: 26px; }
  .news-sidebar { grid-template-columns: 1fr; }
  .news-list-item { flex-direction: column; }
  .news-list-item-img { width: 100%; min-width: auto; height: 180px; }
  .news-list-item-body { padding: 16px; }
  .course-highlights { flex-wrap: wrap; gap: 16px; }
  .course-section-card ul { grid-template-columns: 1fr; }
}

/* =========================================================
   关于我们（about.html）专属样式 - v2 精致版
   ========================================================= */

/* ------- Hero 区 ------- */
.about-hero {
  position: relative; padding: 180px 0 100px;
  background: linear-gradient(135deg, #0F172A 0%, #1E3A8A 35%, #2563EB 70%, #7C3AED 100%);
  color: #fff; overflow: hidden;
}
.about-hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 30%, rgba(124,58,237,.4) 0%, transparent 50%),
    radial-gradient(circle at 85% 75%, rgba(37,99,235,.4) 0%, transparent 50%);
  pointer-events: none;
}
.hero-deco {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.15) 0%, transparent 70%);
  filter: blur(40px); pointer-events: none;
  animation: heroFloat 12s ease-in-out infinite;
}
.hero-deco-1 { width: 300px; height: 300px; top: 10%; left: 5%; }
.hero-deco-2 { width: 400px; height: 400px; bottom: -10%; right: 8%; animation-delay: -4s; }
.hero-deco-3 { width: 200px; height: 200px; top: 40%; right: 25%; animation-delay: -8s; background: radial-gradient(circle, rgba(124,58,237,.3) 0%, transparent 70%); }
@keyframes heroFloat {
  0%, 100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(30px,-30px) scale(1.1); }
  66% { transform: translate(-20px,20px) scale(.95); }
}
.about-hero-inner { position: relative; z-index: 1; text-align: center; }
.breadcrumb {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; color: rgba(255,255,255,.75);
  margin-bottom: 28px;
}
.breadcrumb a { color: rgba(255,255,255,.75); transition: color .2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 12px; opacity: .6; }
.about-hero-title {
  display: block;
  text-align: center;
  margin-bottom: 26px;
  color: #fff;
}
.t-wrap {
  display: inline-block;
  text-align: left;
  position: relative;
}
.t-line { display: block; line-height: 1.1; color: #fff; }
.t-line-1 {
  font-size: 42px;
  font-weight: 400;
  letter-spacing: 2px;
  opacity: .88;
}
.t-line-2 {
  font-size: 72px;
  font-weight: 900;
  letter-spacing: -1.5px;
  margin-top: 14px;
  margin-left: 70px;
  background: linear-gradient(135deg, #fff 0%, #E0E7FF 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.t-sep {
  display: block;
  margin: 10px 0 10px 22px;
  width: 56px; height: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,.8), rgba(255,255,255,0));
}
.about-hero-title .hl { all: unset; }
.about-hero-sub { font-size: 19px; opacity: .88; margin-bottom: 40px; font-weight: 300; letter-spacing: .5px; }
.about-hero-tags {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 14px;
}
.about-hero-tags span {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 999px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px); font-size: 14px; font-weight: 500;
}
.about-hero-tags i { color: #34D399; }

/* ------- 通用 section 样式 ------- */
.section-tag {
  display: inline-block; padding: 6px 14px;
  font-size: 12px; font-weight: 600; letter-spacing: 2px;
  color: var(--blue); background: var(--blue-light);
  border-radius: 999px; margin-bottom: 14px;
  text-transform: uppercase;
}
.about-story .section-header,
.about-mvv .section-header,
.about-core .section-header,
.about-contact .section-header { text-align: center; margin-bottom: 56px; }
.section-sub {
  text-align: center; color: var(--gray-500);
  font-size: 15px; margin-top: 10px;
}

/* ------- 2. 品牌故事 ------- */
.about-story { background: linear-gradient(180deg, #fff 0%, var(--gray-50) 100%); position: relative; }
.story-grid {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: 70px; align-items: center;
}
.story-img {
  position: relative;
  border-radius: 24px; overflow: hidden;
  box-shadow: 0 24px 60px rgba(37,99,235,.15), 0 8px 24px rgba(0,0,0,.08);
  aspect-ratio: 4/3; background: var(--blue-light);
}
.story-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.story-badge {
  position: absolute; right: -20px; bottom: -20px;
  background: #fff; padding: 20px 26px; border-radius: 16px;
  box-shadow: 0 12px 32px rgba(37,99,235,.2);
  display: flex; flex-direction: column; align-items: center;
  min-width: 130px;
}
.story-badge strong {
  font-size: 28px; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.story-badge span { font-size: 13px; color: var(--gray-500); margin-top: 2px; }
.story-text { position: relative; padding-left: 20px; }
.story-quote-mark {
  position: absolute; top: -40px; left: 0;
  font-size: 120px; line-height: 1; font-family: Georgia, serif;
  color: var(--blue-light); font-weight: 900;
  pointer-events: none; z-index: 0;
}
.story-text > * { position: relative; z-index: 1; }
.story-text p { margin-bottom: 18px; color: var(--gray-700); font-size: 16px; line-height: 1.9; }
.story-text .story-lead {
  font-size: 26px; font-weight: 700; color: var(--gray-900);
  line-height: 1.5; margin-bottom: 28px;
  letter-spacing: -.3px;
}
.story-text strong { color: var(--blue-dark); font-weight: 700; }
.story-sig {
  margin-top: 28px; padding-top: 20px;
  border-top: 1px dashed var(--gray-200);
  color: var(--gray-500) !important; font-style: italic;
  font-size: 15px !important;
}

/* ------- 3. 使命愿景价值观 ------- */
.about-mvv { background: #fff; position: relative; }
.mvv-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.mvv-card {
  padding: 48px 34px 40px; border-radius: 24px;
  background: #fff; border: 1px solid var(--gray-200);
  text-align: left; transition: all .4s cubic-bezier(.2,.8,.2,1);
  position: relative; overflow: hidden;
}
.mvv-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 6px;
  border-radius: 24px 24px 0 0;
}
.mvv-card--mission::before { background: linear-gradient(90deg, #2563EB, #7C3AED); }
.mvv-card--vision::before { background: linear-gradient(90deg, #F59E0B, #EF4444); }
.mvv-card--values::before { background: linear-gradient(90deg, #10B981, #059669); }
.mvv-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 48px rgba(0,0,0,.1);
  border-color: transparent;
}
.mvv-icon {
  width: 68px; height: 68px; border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 26px; font-size: 28px; color: #fff;
  box-shadow: 0 10px 24px rgba(0,0,0,.12);
}
.mvv-card--mission .mvv-icon { background: linear-gradient(135deg, #2563EB, #7C3AED); }
.mvv-card--vision .mvv-icon { background: linear-gradient(135deg, #F59E0B, #EF4444); }
.mvv-card--values .mvv-icon { background: linear-gradient(135deg, #10B981, #059669); }
.mvv-label {
  display: block; font-size: 12px; font-weight: 600;
  letter-spacing: 1.5px; color: var(--gray-500);
  margin-bottom: 10px; text-transform: uppercase;
}
.mvv-card h3 {
  font-size: 22px; font-weight: 700; line-height: 1.5;
  margin-bottom: 18px; color: var(--gray-900);
}
.mvv-card p {
  color: var(--gray-500); font-size: 14.5px; line-height: 1.85;
}

/* ------- 4. 核心优势 ------- */
.about-core {
  background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
  position: relative;
}
.core-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.core-card {
  position: relative; overflow: hidden;
  padding: 36px 36px 36px 40px; border-radius: 20px;
  background: #fff;
  border: 1px solid var(--gray-200);
  transition: all .4s cubic-bezier(.2,.8,.2,1);
}
.core-card::before {
  content: ''; position: absolute;
  top: 0; bottom: 0; left: 0; width: 4px;
  transition: width .3s;
}
.core-card[data-accent="blue"]::before { background: linear-gradient(180deg, #2563EB, #7C3AED); }
.core-card[data-accent="orange"]::before { background: linear-gradient(180deg, #F59E0B, #EF4444); }
.core-card[data-accent="green"]::before { background: linear-gradient(180deg, #10B981, #059669); }
.core-card[data-accent="purple"]::before { background: linear-gradient(180deg, #7C3AED, #EC4899); }
.core-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,.08);
  border-color: transparent;
}
.core-card:hover::before { width: 6px; }
.core-icon {
  width: 54px; height: 54px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 22px; color: #fff;
}
.core-card[data-accent="blue"] .core-icon { background: linear-gradient(135deg, #2563EB, #7C3AED); box-shadow: 0 8px 20px rgba(37,99,235,.25); }
.core-card[data-accent="orange"] .core-icon { background: linear-gradient(135deg, #F59E0B, #EF4444); box-shadow: 0 8px 20px rgba(245,158,11,.25); }
.core-card[data-accent="green"] .core-icon { background: linear-gradient(135deg, #10B981, #059669); box-shadow: 0 8px 20px rgba(16,185,129,.25); }
.core-card[data-accent="purple"] .core-icon { background: linear-gradient(135deg, #7C3AED, #EC4899); box-shadow: 0 8px 20px rgba(124,58,237,.25); }
.core-card h3 {
  font-size: 20px; font-weight: 700; margin-bottom: 14px;
  color: var(--gray-900);
}
.core-card p { color: var(--gray-500); font-size: 15px; line-height: 1.85; }

/* ------- 5. 联系我们 - 横条 ------- */
.about-contact { background: #fff; }
.contact-strip {
  display: flex; align-items: stretch;
  background: linear-gradient(135deg, var(--blue-light) 0%, #EDE9FE 100%);
  border-radius: 24px; padding: 14px;
  box-shadow: 0 12px 32px rgba(37,99,235,.08);
}
.contact-strip-item {
  flex: 1; display: flex; align-items: center; gap: 18px;
  padding: 24px 28px; border-radius: 16px;
  transition: background .3s;
}
.contact-strip-item:hover { background: rgba(255,255,255,.6); }
.contact-strip-item .contact-icon {
  width: 54px; height: 54px; border-radius: 14px;
  background: var(--gradient); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(37,99,235,.25);
}
.contact-info h4 {
  font-size: 13px; font-weight: 600; color: var(--gray-500);
  margin-bottom: 6px; letter-spacing: .5px;
}
.contact-val {
  font-size: 17px; font-weight: 700; color: var(--gray-900);
  margin-bottom: 2px;
}
.contact-note { font-size: 12px; color: var(--gray-500); }
.contact-divider {
  width: 1px; background: rgba(37,99,235,.15); margin: 20px 0;
}

/* ------- 响应式 ------- */
@media (max-width: 960px) {
  .about-hero { padding: 120px 0 60px; }
  .about-hero-title { font-size: 36px; }
  .story-grid { grid-template-columns: 1fr; gap: 40px; }
  .story-img { max-width: 500px; margin: 0 auto; width: 100%; }
  .story-badge { right: 10px; bottom: 10px; }
  .story-text { padding-left: 0; }
  .story-quote-mark { font-size: 80px; top: -30px; }
  .mvv-grid { grid-template-columns: 1fr; gap: 20px; }
  .core-grid { grid-template-columns: 1fr; gap: 20px; }
  .contact-strip { flex-direction: column; }
  .contact-divider { width: auto; height: 1px; margin: 0 20px; }
}