/* ==========================================================================
   怡元智创（青岛）科技有限公司 - 官网样式
   主色：#0785D7  强调：#ff6600  深色：#12263a
   ========================================================================== */

:root {
  --blue: #0785d7;
  --blue-dark: #0568a8;
  --blue-light: #eaf5fd;
  --orange: #ff6600;
  --navy: #12263a;
  --gray: #6b7683;
  --gray-light: #f4f7fa;
  --border: #e8edf2;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(18, 38, 58, 0.08);
  --maxw: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  color: #2b3542;
  background: #fff;
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .2s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.clear::after { content: ""; display: table; clear: both; }

/* ============ 顶部品牌区 ============ */
.topbar {
  background: linear-gradient(90deg, #fff 0%, #f4fafd 100%);
  border-bottom: 1px solid var(--border);
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand .logo-mark {
  width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: #fff; font-weight: 700; font-size: 22px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(7, 133, 215, .35);
}
.brand .brand-text h1 { font-size: 22px; color: var(--navy); letter-spacing: 1px; }
.brand .brand-text p { font-size: 13px; color: var(--gray); }
.top-contact { display: flex; align-items: center; gap: 10px; color: var(--blue); font-weight: 700; font-size: 20px; }
.top-contact svg { width: 26px; height: 26px; }
.top-contact small { display: block; font-size: 12px; font-weight: 400; color: var(--gray); line-height: 1.2; }

/* ============ 导航 ============ */
.nav { background: var(--blue); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(7, 133, 215, .25); }
.nav .container { display: flex; align-items: center; justify-content: space-between; }
.nav ul { display: flex; }
.nav ul li a {
  display: block; padding: 15px 26px; color: #fff; font-size: 16px; position: relative;
}
.nav ul li a:hover, .nav ul li a.active { background: var(--blue-dark); }
.nav ul li a.active::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  border: 7px solid transparent; border-bottom-color: #fff;
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 12px; margin-left: auto; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: #fff; margin: 5px 0; transition: .3s; }

/* ============ Banner ============ */
.banner { position: relative; overflow: hidden; }
.banner .slide {
  display: none; min-height: 440px;
  background-size: cover; background-position: center;
  align-items: center;
}
.banner .slide.active { display: flex; }
.banner .slide .inner { max-width: var(--maxw); margin: 0 auto; width: 100%; padding: 0 24px; }
.banner .slide .tag { display: inline-block; background: var(--orange); color: #fff; padding: 4px 14px; border-radius: 20px; font-size: 13px; margin-bottom: 16px; }
.banner .slide h2 { font-size: 42px; color: #fff; line-height: 1.25; margin-bottom: 14px; text-shadow: 0 2px 12px rgba(0,0,0,.25); }
.banner .slide p { font-size: 17px; color: rgba(255,255,255,.92); max-width: 560px; margin-bottom: 24px; }
.banner .btn {
  display: inline-block; padding: 12px 30px; border-radius: 30px; font-size: 16px; font-weight: 600;
}
.banner .btn-primary { background: var(--orange); color: #fff; box-shadow: 0 6px 18px rgba(255,102,0,.4); }
.banner .btn-primary:hover { background: #e85a00; }
.banner .btn-ghost { background: rgba(255,255,255,.18); color: #fff; border: 1px solid rgba(255,255,255,.6); margin-left: 10px; }
.banner .btn-ghost:hover { background: rgba(255,255,255,.32); }
.banner .dots { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 5; }
.banner .dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.5); cursor: pointer; transition: .3s; }
.banner .dots span.active { background: #fff; width: 26px; border-radius: 6px; }

/* ============ 通用 section ============ */
.section { padding: 72px 0; }
.section-alt { background: var(--gray-light); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: 32px; color: var(--navy); margin-bottom: 10px; }
.section-head h2::after { content: ""; display: block; width: 56px; height: 4px; background: var(--blue); border-radius: 2px; margin: 14px auto 0; }
.section-head p { color: var(--gray); font-size: 15px; }

/* ============ 快速通道 ============ */
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quick-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; display: flex; gap: 20px; box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s;
}
.quick-card:hover { transform: translateY(-6px); box-shadow: 0 14px 34px rgba(18,38,58,.14); }
.quick-card .q-icon {
  width: 60px; height: 60px; flex-shrink: 0; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; color: #fff;
}
.quick-card .q-icon svg { width: 30px; height: 30px; }
.quick-card h3 { font-size: 18px; color: var(--navy); margin-bottom: 10px; }
.quick-card ul li { margin: 7px 0; font-size: 14px; }
.quick-card ul li a { color: var(--gray); }
.quick-card ul li a:hover { color: var(--blue); }
.quick-card ul li a::before { content: "›"; color: var(--orange); margin-right: 6px; font-weight: 700; }
.q-blue { background: linear-gradient(135deg, #0785d7, #0568a8); }
.q-orange { background: linear-gradient(135deg, #ff6600, #e85a00); }
.q-green { background: linear-gradient(135deg, #18b26b, #0e9a5a); }

/* ============ 产品中心 ============ */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 20px; text-align: center; transition: transform .25s, box-shadow .25s, border-color .25s;
  cursor: pointer; outline: none; color: inherit; text-decoration: none;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--blue); }
.product-card:focus-visible { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(7,133,215,.25); }
.product-card .p-icon {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center; color: #fff;
}
.product-card .p-icon svg { width: 32px; height: 32px; }
.product-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 6px; }
.product-card p { font-size: 13px; color: var(--gray); }
.product-card .card-more { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--blue); }
.product-card:hover .card-more { text-decoration: underline; }
.product-colors .c1 { background: linear-gradient(135deg, #0785d7, #0568a8); }
.product-colors .c2 { background: linear-gradient(135deg, #ff6600, #e85a00); }
.product-colors .c3 { background: linear-gradient(135deg, #18b26b, #0e9a5a); }
.product-colors .c4 { background: linear-gradient(135deg, #7c4dff, #5e35b1); }
.product-colors .c5 { background: linear-gradient(135deg, #00bcd4, #0097a7); }
.product-colors .c6 { background: linear-gradient(135deg, #ff4081, #e91e63); }

/* ============ 服务 ============ */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service-item {
  display: block; color: inherit; text-decoration: none; cursor: pointer;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 20px; text-align: center; transition: transform .25s, box-shadow .25s, border-color .25s;
}
.service-item:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--blue); }
.service-item:focus-visible { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(7,133,215,.25); }
.service-item .s-icon {
  width: 58px; height: 58px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--blue-light); color: var(--blue); display: flex; align-items: center; justify-content: center;
}
.service-item .s-icon svg { width: 28px; height: 28px; }
.service-item h3 { font-size: 16px; color: var(--navy); }
.service-item .card-more { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--blue); }
.service-item:hover .card-more { text-decoration: underline; }

/* ============ 案例 ============ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { display: block; text-decoration: none; color: inherit; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); transition: transform .25s, box-shadow .25s, border-color .25s; }
.case-card:hover { transform: translateY(-6px); box-shadow: 0 16px 34px rgba(7,30,60,.16); border-color: var(--blue); }
.case-card .card-more { display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--blue); }
.case-card:hover .card-more { text-decoration: underline; }
.case-thumb { height: 170px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 26px; font-weight: 700; letter-spacing: 2px; }
.case-body { padding: 18px 20px; }
.case-body .tag { display: inline-block; background: var(--blue-light); color: var(--blue); font-size: 12px; padding: 2px 10px; border-radius: 12px; margin-bottom: 8px; }
.case-body h3 { font-size: 16px; color: var(--navy); margin-bottom: 4px; }
.case-body p { font-size: 13px; color: var(--gray); }

/* ============ 关于 / 页头 ============ */
.page-hero {
  background: linear-gradient(120deg, #0785d7, #0568a8);
  color: #fff; padding: 56px 0; text-align: center;
}
.page-hero h2 { font-size: 34px; margin-bottom: 8px; }
.page-hero p { opacity: .9; }

/* ============ 联系 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.contact-info-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
}
.contact-info-card .ci-item { display: flex; align-items: flex-start; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.contact-info-card .ci-item:last-child { border-bottom: none; }
.contact-info-card .ci-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--blue-light); color: var(--blue); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-info-card .ci-icon svg { width: 22px; height: 22px; }
.contact-info-card .ci-item h3 { font-size: 15px; color: var(--navy); }
.contact-info-card .ci-item p { color: var(--gray); font-size: 14px; }
.contact-form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.contact-form h3 { font-size: 20px; color: var(--navy); margin-bottom: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; color: var(--navy); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit;
  outline: none; transition: border-color .2s;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--blue); }
.form-group textarea { height: 110px; resize: vertical; }
.btn-submit { background: var(--blue); color: #fff; border: none; padding: 12px 34px; border-radius: 8px; font-size: 16px; cursor: pointer; transition: background .2s; }
.btn-submit:hover { background: var(--blue-dark); }

/* ============ 页脚 ============ */
.footer { background: var(--navy); color: #b8c4d0; padding: 56px 0 0; }
.footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 32px; padding-bottom: 40px; }
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.footer .f-brand { font-size: 20px; color: #fff; font-weight: 700; margin-bottom: 12px; }
.footer p, .footer li { font-size: 14px; margin: 8px 0; }
.footer a:hover { color: #fff; }
.footer .f-contact .tel { color: var(--orange); font-size: 24px; font-weight: 700; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 20px 0; text-align: center; font-size: 13px; }
.footer-bottom a { color: #b8c4d0; }
.footer-bottom a:hover { color: #fff; }
.footer .f-wechat { margin-top: 16px; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer .f-wechat img {
  width: 96px; height: auto; display: block;
  background: #fff; padding: 7px; border-radius: 12px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, .25), 0 0 0 1px rgba(255, 255, 255, .08);
}
.footer .f-wechat .qr-cap { font-size: 12px; color: #9fb0c0; letter-spacing: 1px; display: flex; align-items: center; gap: 6px; }
.footer .f-wechat .qr-cap::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #22c55e; display: inline-block; }

/* ============ 返回顶部 ============ */
.gotop {
  position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--blue); color: #fff; border: none; cursor: pointer; display: none; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(7,133,215,.4); z-index: 200;
}
.gotop svg { width: 22px; height: 22px; }
.gotop.show { display: flex; }

/* ============ 响应式 ============ */
@media (max-width: 992px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .footer .container { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav ul {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--blue-dark); flex-direction: column; box-shadow: 0 10px 20px rgba(0,0,0,.2);
  }
  .nav ul.open { display: flex; }
  .nav ul li a { padding: 14px 24px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .banner .slide { min-height: 360px; }
  .banner .slide h2 { font-size: 28px; }
  .quick-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
  .top-contact { font-size: 17px; }
  .brand .brand-text h1 { font-size: 18px; }
}
@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .service-grid { grid-template-columns: 1fr; }
  .footer .container { grid-template-columns: 1fr; }
}

/* ============ 产品详情弹窗 ============ */
.modal { position: fixed; inset: 0; z-index: 1000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(10,25,45,.55); backdrop-filter: blur(2px); }
.modal-box {
  position: relative; z-index: 1; background: #fff; border-radius: 14px; max-width: 620px; width: 100%;
  max-height: 86vh; overflow-y: auto; padding: 34px 32px 30px; box-shadow: 0 24px 60px rgba(0,0,0,.28);
  animation: modalIn .25s ease;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-close {
  position: absolute; top: 12px; right: 14px; width: 34px; height: 34px; border: none; background: #f0f3f7;
  border-radius: 50%; font-size: 22px; line-height: 1; color: #667; cursor: pointer; transition: background .2s;
}
.modal-close:hover { background: #e2e8f0; color: #333; }
.modal-body .pm-tag { display: inline-block; background: rgba(7,133,215,.1); color: var(--blue); font-size: 12px; padding: 4px 10px; border-radius: 20px; margin: 0 6px 10px 0; }
.modal-body h3.pm-title { font-size: 22px; color: var(--navy); margin: 4px 0 14px; }
.modal-body .pm-desc { font-size: 14.5px; line-height: 1.9; color: #455; margin-bottom: 18px; }
.modal-body .pm-sub { font-size: 14px; font-weight: 700; color: var(--navy); margin: 18px 0 10px; padding-left: 10px; border-left: 3px solid var(--blue); }
.modal-body ul.pm-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; }
.modal-body ul.pm-list li { font-size: 13.5px; color: #556; padding-left: 18px; position: relative; }
.modal-body ul.pm-list li::before { content: "✓"; position: absolute; left: 0; color: var(--blue); font-weight: 700; }
.modal-body .pm-suit { font-size: 13.5px; color: #556; background: #f6f9fc; border-radius: 10px; padding: 12px 14px; margin-top: 6px; }
.modal-body .pm-cta { margin-top: 22px; text-align: center; }
.modal-body .pm-cta a { display: inline-block; background: var(--blue); color: #fff; text-decoration: none; padding: 11px 26px; border-radius: 8px; font-size: 14px; font-weight: 600; }
.modal-body .pm-cta a:hover { background: #066fbb; }

/* ============ 产品独立详情页 ============ */
.detail-hero { text-align: left; }
.detail-hero h2 { font-size: 32px; margin-bottom: 6px; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,.85); margin-bottom: 16px; }
.breadcrumb a { color: rgba(255,255,255,.85); text-decoration: none; }
.breadcrumb a:hover { color: #fff; text-decoration: underline; }
.breadcrumb span { color: #fff; font-weight: 600; }
.detail-tags { margin: 12px 0 4px; }
.detail-tags .pm-tag { background: rgba(255,255,255,.16); color: #fff; font-size: 12px; padding: 4px 10px; border-radius: 20px; margin: 0 6px 6px 0; display: inline-block; }
.detail-lead { color: rgba(255,255,255,.9); font-size: 15px; max-width: 760px; line-height: 1.8; margin-top: 10px; }
.sec-title { font-size: 20px; color: var(--navy); margin: 32px 0 14px; padding-left: 12px; border-left: 4px solid var(--blue); }
.sec-text { font-size: 15px; line-height: 1.95; color: #455; margin-bottom: 8px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 6px; }
.feature-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 18px; }
.feature-card h4 { font-size: 16px; color: var(--navy); margin-bottom: 8px; }
.feature-card p { font-size: 13.5px; color: var(--gray); line-height: 1.7; }
.suit-list { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 18px; margin-top: 10px; }
.suit-list li { font-size: 14px; color: #556; padding-left: 18px; position: relative; }
.suit-list li::before { content: "✓"; position: absolute; left: 0; color: var(--blue); font-weight: 700; }
.cta-section { background: #f4f8fc; }
.cta-box { text-align: center; padding: 40px 20px; }
.cta-box h3 { font-size: 22px; color: var(--navy); margin-bottom: 10px; }
.cta-box p { font-size: 14.5px; color: var(--gray); margin-bottom: 18px; }
.btn-primary { display: inline-block; background: var(--blue); color: #fff; text-decoration: none; padding: 12px 30px; border-radius: 8px; font-weight: 600; font-size: 15px; transition: background .2s; }
.btn-primary:hover { background: #066fbb; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.related-card { display: block; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-decoration: none; transition: transform .2s, box-shadow .2s, border-color .2s; }
.related-card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow); }
.related-card h4 { font-size: 15px; color: var(--navy); margin-bottom: 6px; }
.related-card span { font-size: 12.5px; color: var(--gray); }
@media (max-width: 768px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .feature-grid, .related-grid { grid-template-columns: 1fr; }
  .suit-list { grid-template-columns: 1fr; }
}

/* ============ 案例详情页-客户感言 ============ */
.testimonial {
  position: relative; margin-top: 26px; background: linear-gradient(135deg, #f4f8fc, #eef4fb);
  border-left: 4px solid var(--blue); border-radius: 12px; padding: 28px 30px 24px; overflow: hidden;
}
.testimonial .t-quote {
  position: absolute; top: -8px; right: 18px; font-size: 90px; line-height: 1; color: rgba(7,133,215,.12); font-family: Georgia, serif;
}
.testimonial p { position: relative; font-size: 16px; line-height: 1.9; color: #344; margin: 0 0 10px; }
.testimonial .t-author { position: relative; font-size: 13.5px; color: var(--blue); font-weight: 600; }

/* ============ 授权证书展示 ============ */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 16px;
}
.cert-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(18, 38, 58, .14);
}
.cert-zoom {
  display: block;
  background: var(--gray-light);
  padding: 14px;
  cursor: zoom-in;
}
.cert-zoom img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.cert-card figcaption {
  padding: 14px 16px 18px;
  border-top: 1px solid var(--border);
}
.cert-card figcaption strong {
  display: block;
  color: var(--navy);
  font-size: 16px;
  margin-bottom: 6px;
}
.cert-card figcaption span {
  display: block;
  color: var(--gray);
  font-size: 13px;
  line-height: 1.7;
}
.cert-valid { color: var(--blue) !important; font-style: normal; font-weight: 600; }
.cert-note { color: #b08900 !important; font-style: normal; }

/* 证书灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 18, 28, .92);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 40px;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 92%;
  max-height: 88%;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
}
.lb-close {
  position: absolute;
  top: 22px;
  right: 30px;
  color: #fff;
  font-size: 40px;
  line-height: 1;
  cursor: pointer;
  opacity: .8;
}
.lb-close:hover { opacity: 1; }

@media (max-width: 600px) {
  .cert-grid { grid-template-columns: 1fr; }
}

/* ============ 资讯中心 ============ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.news-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform .25s, box-shadow .25s;
}
.news-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(18,38,58,.14); }
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.news-date { font-size: 13px; color: var(--gray); }
.news-tag {
  font-size: 12px; color: var(--blue);
  background: var(--blue-light); border-radius: 20px; padding: 2px 10px;
}
.news-card h3 { font-size: 18px; line-height: 1.5; margin-bottom: 10px; }
.news-card h3 a { color: var(--navy); }
.news-card h3 a:hover { color: var(--blue); }
.news-card p { color: var(--gray); font-size: 14px; line-height: 1.9; flex: 1; }
.news-card .card-more { margin-top: 14px; align-self: flex-start; }

/* 文章页 */
.article { max-width: 820px; color: #3a4452; font-size: 16px; line-height: 2.1; }
.article h3 { color: var(--navy); font-size: 21px; margin: 30px 0 12px; }
.article p { margin-bottom: 14px; }
.article-cta {
  margin-top: 34px; padding: 24px; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--blue-light) 0%, #fff 100%);
  border: 1px solid var(--border);
}
.article-cta h4 { color: var(--navy); font-size: 18px; margin-bottom: 8px; }
.article-cta p { color: var(--gray); font-size: 14px; margin-bottom: 16px; }
.btn-primary, .btn-ghost {
  display: inline-block; padding: 10px 22px; border-radius: 24px;
  font-size: 14px; font-weight: 600; margin-right: 12px; transition: all .2s;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-ghost { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.btn-ghost:hover { background: var(--blue-light); }

@media (max-width: 600px) {
  .news-grid { grid-template-columns: 1fr; }
}