/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
/*body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif; color: #1a2733; background: #fff; line-height: 1.6; -webkit-font-smoothing: antialiased; }*/
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }
.font_w{color:#fff;}
/* ========== Layout ========== */
.container { max-width: 1400px; margin: 0 auto; padding: 0 20px; }
/*@media (min-width: 1024px) { .container { padding: 0 32px; } }*/



/* ========== Section Common ========== */
.section { width: 100%; padding: 80px 0; }
@media (min-width: 768px) { .section { padding: 96px 0; } }
.section-head { text-align: center; margin-bottom: 16px; }
.section-head h2 { font-size: 32px; font-weight: 900; margin-bottom: 12px; 
/*background: linear-gradient(90deg, #0059aa, #00a4dc); */
/*-webkit-background-clip: text; */
/*background-clip: text; */
/*color: transparent; */
    
}
@media (min-width: 768px) { .section-head h2 { font-size: 40px; } }
/*.section-head p { font-size: 16px; color: #5a6b7c; }*/
@media (min-width: 768px) { .section-head p { font-size: 18px; } }
.section-head-line { width: 50px; height: 3px; background: linear-gradient(90deg, #0080ff, #00c2ff); border-radius: 2px; margin: 16px auto 0; }


/*nav*/
/* 导航栏主体 */
.sub-nav {
  width: 100%;
  background: #fff;
  border-bottom: 1px solid #e8ecf1;
  position: sticky;
  top: 0;
  z-index: 100;
}
.sub-nav-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 60px;
}
.sub-nav-list {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.sub-nav-item {
  position: relative;
}
.sub-nav-link {
  display: flex;
  align-items: center;
  height: 60px;
  padding: 0 32px;
  font-size: 16px;
  font-weight: 500;
  color: #333;
  text-decoration: none;
  transition: color 0.25s ease;
  position: relative;
}
.sub-nav-link:hover {
  color: #1890ff;
}
/* 选中状态 */
.sub-nav-item.active .sub-nav-link {
  color: #1890ff;
  font-weight: 600;
}
.sub-nav-item.active .sub-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, #1890ff, #40a9ff);
  border-radius: 2px 2px 0 0;
}
/* hover底部横线动画 */
.sub-nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, #1890ff, #40a9ff);
  border-radius: 2px 2px 0 0;
  transition: width 0.25s ease;
}
.sub-nav-item:not(.active) .sub-nav-link:hover::before {
  width: 40px;
}

/* 右侧可放搜索/按钮等 */
.sub-nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

/* 响应式 */
@media (max-width: 768px) {
  .sub-nav-inner { height: 50px; padding: 0 12px; overflow-x: auto; }
  .sub-nav-link { height: 50px; padding: 0 18px; font-size: 14px; white-space: nowrap; }
  .sub-nav-banner { height: 36px; }
  .sub-nav-right { display: none; }
}

/* ========== About Intro ========== */
.about-intro { background: linear-gradient(180deg, #f0f7ff 0%, #f8fbff 100%); position: relative; overflow: hidden; }
.about-intro-grid { align-items: center; 
    box-shadow: 0 0px 22px 15px rgba(0,0,0,0.15);padding:20px;
}
.about-intro-grids { display: grid; grid-template-columns: 1fr; gap: 48px; align-items: center; 
}
.linian{display: grid; grid-template-columns: 1fr 1fr; gap: 148px;padding:20px;font-size:35px;font-weight:800;color:#0c467a;}
.linian .linian_l{text-align:right;}
.linian span{margin:0 20px;}
@media (min-width: 1024px) { .about-intro-grids { grid-template-columns: 1.2fr 1fr; gap: 64px; } }
/*.about-intro-text h3 { font-size: 24px; font-weight: 700; color: #1a2733; margin-bottom: 24px; line-height: 1.4; }*/
.about-intro-text h3 {    font-size: 20px;
    font-weight: 700;
    /*color: #0080ff;*/
    margin-bottom: 24px;
    line-height: 1.4;
    background: linear-gradient(90deg, #0059aa, #00a4dc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;}
@media (min-width: 768px) { .about-intro-text h3 { font-size: 28px; } }
.about-intro-text p { font-size: 15px; color: #3a4a5a; line-height: 2; margin-bottom: 16px; text-indent: 2em; }
@media (min-width: 768px) { .about-intro-text p { font-size: 16px; } }
.about-intro-video { position: relative; border-radius: 20px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,80,160,0.2); aspect-ratio: 16 / 10; }
.about-intro-video img { width: 100%; height: 100%; object-fit: cover; }
/*.about-intro-video::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,22,40,0.1) 0%, rgba(10,22,40,0.3) 100%); }*/
.video-play-btn { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2; width: 80px; height: 80px; border-radius: 50%; background: rgba(255,255,255,0.95); display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 30px rgba(0,0,0,0.3); transition: all 0.3s ease; cursor: pointer; }
.video-play-btn:hover { transform: translate(-50%, -50%) scale(1.1); box-shadow: 0 12px 40px rgba(0,128,255,0.4); }
.video-play-btn::before { content: ''; position: absolute; inset: -8px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.5); animation: pulse 2s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(1); opacity: 1; } 100% { transform: scale(1.3); opacity: 0; } }
.video-play-btn svg { width: 32px; height: 32px; fill: #0080ff; margin-left: 4px; }

/* ========== Timeline ========== */
.timeline-section { position: relative; overflow: hidden; }
.timeline-bg { position: absolute; inset: 0; }
.timeline-bg img { width: 100%; height: 100%; object-fit: cover; }
/*.timeline-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,46,76,0.88) 0%, rgba(6,46,76,0.92) 100%); }*/
.timeline-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.68); }
/*.timeline-section .section-head h2 { background: linear-gradient(90deg, #60b7ff, #00c2ff); -webkit-background-clip: text; background-clip: text; color: transparent; }*/
/*.timeline-section .section-head p { color: rgba(255,255,255,0.6); }*/
.timeline-wrap { position: relative; z-index: 2; display: flex; align-items: center; gap: 16px; padding: 20px 0 40px; }
.timeline-item { flex: 0 0 calc(25% - 24px); min-width: 260px; position: relative; text-align: center; padding-top: 44px; }
@media (max-width: 1023px) { .timeline-item { flex: 0 0 calc(50% - 16px); } }
@media (max-width: 767px) { .timeline-item { flex: 0 0 100%; min-width: 100%; } }
.timeline-line { display: none !important; }
.timeline-dot-wrap { position: relative; top: 0; left: 50%; transform: translateX(-50%); width: 28px; height: 28px; margin-bottom:35px;}
.timeline-dot-ring { position: absolute; inset: 0; border-radius: 50%; /*border: 2px solid rgba(0,194,255,0.35);*/ border: 2px solid rgba(255,255,255,0.35); transition: all 0.3s ease; }
.timeline-item:hover .timeline-dot-ring { /*border-color: rgba(0,194,255,0.7);*/border-color: rgba(255,255,255,0.7); transform: scale(1.15); }
.timeline-dot-core { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 10px; height: 10px; border-radius: 50%; /*background: #00c2ff;*/background: #fff; box-shadow: 0 0 14px rgba(0,194,255,0.7); }
.timeline-year { font-size: 32px; font-weight: 900; /*color: #00c2ff;*/ color:#fff; margin-bottom: 14px; letter-spacing: 0.02em; }
@media (min-width: 768px) { .timeline-year { font-size: 38px; } }
.timeline-content { padding: 0 8px; background: none !important; border: none !important; backdrop-filter: none !important; -webkit-backdrop-filter: none !important; border-radius: 0 !important; }
.timeline-content p { font-size: 13px; color: rgba(255,255,255,1); line-height: 1.85;text-align:left; }
@media (min-width: 768px) { .timeline-content p { font-size: 14px; text-align:left;} }


@media (max-width: 767px) {  }

.bg_hx{width:93%;height:3px;background:#fff;position:absolute;top:24.5%;left: 50%;transform: translate(-50%, -50%);}



/* ========== Honors ========== */
.honors { background: #fff; }
.honors-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (min-width: 640px) { .honors-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .honors-grid { grid-template-columns: repeat(4, 1fr); gap: 32px; } }
.honor-card { position: relative; overflow: hidden; transition: all 0.35s ease; cursor: pointer; 
/*border-radius: 16px; border: 1px solid rgba(0,128,255,0.15); background: linear-gradient(135deg, #f8fbff 0%, #eef6ff 100%); */
}
/*.honor-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,80,160,0.15); border-color: rgba(0,128,255,0.4); }*/

.honor-card-img { position: relative; display: flex; align-items: center; justify-content: center; padding: 24px; 
    border-radius: 16px; border: 2px solid rgba(0,0,0,0.15);
}
/*aspect-ratio: 3 / 4; */
.honor-card-img img{max-width:70%;transition: transform 0.8s ease-in-out;}
.honor-card-img img:hover {transform: scale(1.2);}
.honor-certificate { width: 100%; height: 100%; background: #fff; border: 2px solid #d4af37; border-radius: 8px; position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 16px; text-align: center; box-shadow: inset 0 0 20px rgba(212,175,55,0.1); }
.honor-certificate::before { content: ''; position: absolute; top: 6px; left: 6px; right: 6px; bottom: 6px; border: 1px solid rgba(212,175,55,0.4); border-radius: 4px; }
.honor-cert-icon { width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, #d4af37, #f0d78c); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.honor-cert-icon svg { width: 24px; height: 24px; fill: #fff; }
.honor-cert-title { font-size: 13px; font-weight: 700; color: #8b6914; margin-bottom: 6px; line-height: 1.4; }
.honor-cert-sub { font-size: 11px; color: #a08040; line-height: 1.5; }
.honor-card-label { padding: 6px 16px; text-align: center; }
/*background: rgba(255,255,255,0.8); border-top: 1px solid rgba(0,128,255,0.1); */
.honor-card-label span { font-size: 13px; font-weight: 400; color: #1a2733; }
@media (min-width: 768px) { .honor-card-label span { font-size: 14px; } }

/* Swiper4 多行布局：确保slide高度由内容撑开 */
#honorsSwiper .swiper-slide {
  height: auto;
}
/* 多行布局下 wrapper 需要允许换行 */
#honorsSwiper .swiper-wrapper {
  align-items: stretch;
}

/* ========== Patents ========== */
.patents { background: linear-gradient(180deg, #f0f9ff 0%, #f8fbff 100%); }
.patents-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (min-width: 640px) { .patents-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .patents-grid { grid-template-columns: repeat(4, 1fr); gap: 24px; } }
.patent-card { background: #fff; overflow: hidden; transition: all 0.3s ease; cursor: pointer;
/*border-radius: 12px; border: 1px solid rgba(0,128,255,0.12);  */
}
/*.patent-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,80,160,0.12); border-color: rgba(0,128,255,0.35); }*/
.patent-card-img { aspect-ratio: 3 / 4; position: relative;display: flex; align-items: center; justify-content: center; padding: 16px; }
 /*background: linear-gradient(135deg, #f5f9ff 0%, #e8f2ff 100%); */
.patent-card-img img{transition: transform 0.8s ease-in-out;}
.patent-card-img img:hover {transform: scale(1.2);}
.patent-doc { width: 100%; height: 100%; background: #fff; border: 1px solid #e0e8f0; border-radius: 4px; position: relative; padding: 12px 10px; display: flex; flex-direction: column; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.patent-doc-header { text-align: center; border-bottom: 1px solid #eee; padding-bottom: 8px; margin-bottom: 8px; }
.patent-doc-header .doc-title { font-size: 10px; font-weight: 700; color: #c41e3a; margin-bottom: 2px; }
.patent-doc-header .doc-sub { font-size: 8px; color: #666; }
.patent-doc-body { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.patent-doc-line { height: 3px; background: #f0f0f0; border-radius: 2px; }
.patent-doc-line.short { width: 60%; }
.patent-doc-line.medium { width: 80%; }
.patent-doc-seal { position: absolute; bottom: 12px; right: 12px; width: 36px; height: 36px; border-radius: 50%; border: 2px solid rgba(196,30,58,0.6); display: flex; align-items: center; justify-content: center; transform: rotate(-15deg); }
.patent-doc-seal span { font-size: 7px; color: rgba(196,30,58,0.7); font-weight: 700; text-align: center; line-height: 1.2; }
.patent-card-label { padding: 12px; text-align: center; background: #fafcff; }
/*border-top: 1px solid #eef3f8; */
.patent-card-label .patent-name { font-size: 12px; font-weight: 400; color: #1a2733; margin-bottom: 4px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.patent-card-label .patent-no { font-size: 11px; color: #8a9aaa; }
@media (min-width: 768px) { .patent-card-label .patent-name { font-size: 13px; } }

/* Swiper4 多行布局：确保slide高度由内容撑开 */
#patentsSwiper .swiper-slide {
  height: auto;
}
/* 多行布局下 wrapper 需要允许换行 */
#patentsSwiper .swiper-wrapper {
  align-items: stretch;
}

/* ========== Partners ========== */
.partners { background: #fff; }
.partners-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (min-width: 640px) { .partners-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; } }
@media (min-width: 1024px) { .partners-grid { grid-template-columns: repeat(7, 1fr); gap: 4px;grid-auto-rows: 120px; } }
.partner-item {  background: #f8fafc; border: 1px solid #e8eef4; border-radius: 12px; display: flex; align-items: center; justify-content: center; padding: 12px; transition: all 0.3s ease; cursor: pointer; max-height:100px;}
/*aspect-ratio: 2 / 1;*/
.partner-item:hover { border-color: rgba(0,128,255,0.3); background: #fff; box-shadow: 0 8px 24px rgba(0,80,160,0.08); transform: translateY(-2px); }
.partner-item span { font-size: 13px; font-weight: 600; color: #4a5a6a; text-align: center; line-height: 1.4; }
.partner-item img{object-fit:contain;}
@media (min-width: 768px) { .partner-item span { font-size: 14px; } }

/* ========== CTA Section ========== */
.cta-section { position: relative; width: 100%; height: 360px; overflow: hidden; }
@media (min-width: 768px) { .cta-section { height: 440px; } }
.cta-bg { position: absolute; inset: 0; }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6,46,76,0.6) 0%, rgba(6,46,76,0.75) 100%); }
.cta-content { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 0 24px; }
.cta-title { font-size: 28px; font-weight: 700; color: #fff; line-height: 1.5; letter-spacing: 0.04em; margin-bottom: 24px; }
@media (min-width: 768px) { .cta-title { font-size: 40px; } }
.cta-phone { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.cta-phone svg { width: 28px; height: 28px; fill: #00c2ff; }
.cta-phone span { font-size: 32px; font-weight: 800; color: #fff; letter-spacing: 0.02em; }
@media (min-width: 768px) { .cta-phone span { font-size: 42px; } }
.cta-phone-label { font-size: 14px; color: rgba(255,255,255,0.7); letter-spacing: 0.1em; }

/* ========== Footer ========== */
.footer { background: #1a1a1a; color: #fff; }
.footer-main { padding: 64px 0; display: grid; grid-template-columns: 1fr; gap: 48px; }
@media (min-width: 768px) { .footer-main { grid-template-columns: repeat(2, 1fr); gap: 48px 32px; } }
@media (min-width: 1024px) { .footer-main { grid-template-columns: 2fr repeat(6, 1fr); gap: 32px; } }
.footer-brand .logo-text .cn { color: #fff; font-size: 18px; }
.footer-brand .logo-text .en { color: rgba(255,255,255,0.6); font-size: 10px; }
.footer-contact { margin-top: 24px; }
.footer-contact-item { margin-bottom: 20px; }
.footer-contact-label { font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 4px; }
.footer-contact-value { font-size: 14px; color: rgba(255,255,255,0.9); line-height: 1.6; }
.footer-phone { font-size: 32px; font-weight: 700; letter-spacing: 0.02em; color: #fff; }
.footer-socials { margin-top: 8px; }
.footer-socials-label { font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 12px; }
.footer-social-icons { display: flex; align-items: center; gap: 16px; }
.social-icon { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; color: #fff; transition: background 0.25s ease; }
.social-icon:hover { background: #00a1ff; }
.social-icon svg { width: 20px; height: 20px; }
.qrcode-wrap { position: relative; display: inline-block; }
.qrcode-link { text-decoration: none; color: #fff; font-size: 16px; }
.qrcode-box { width: 120px; display: none; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%); margin-bottom: 8px; padding: 8px; background: #fff; border: 1px solid #eee; border-radius: 6px; box-shadow: 0 2px 12px rgba(0,0,0,0.1); z-index: 999; }
.qrcode-box img { width: 120px; height: 120px; display: block; }
.qrcode-wrap:hover .qrcode-box { display: block; }
.footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 14px; color: rgba(255,255,255,0.6); transition: color 0.25s ease; }
.footer-col a:hover { color: #00a1ff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; }
.footer-bottom-inner { display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 12px; }
@media (min-width: 768px) { .footer-bottom-inner { flex-direction: row; } }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.4); }

/* ========== Reveal Animations ========== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease-out, transform 0.7s ease-out; }
/* JS加载兜底：2秒后自动显示，防止JS出错导致内容不可见 */
.reveal-fallback { opacity: 1 !important; 
/*transform: none !important; */
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

button:focus-visible, a:focus-visible { outline: 2px solid #0080ff; outline-offset: 2px; border-radius: 6px; }

/* ========== Swiper Custom Styles ========== */
.timeline-swiper { position: relative; padding: 0 60px; }
.timeline-swiper .swiper-wrapper { align-items: stretch; }
.timeline-swiper .swiper-slide { height: auto; }
.timeline-swiper .swiper-button-prev,
.timeline-swiper .swiper-button-next {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  /*border: 1px solid rgba(0,194,255,0.3);*/
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff; transition: all 0.3s ease;
  position: absolute; top: 23.4%; transform: translateY(-50%);
  margin: 0; z-index: 10;
}
.timeline-swiper .swiper-button-prev { left: 0; }
.timeline-swiper .swiper-button-next { right: 0; }
.timeline-swiper .swiper-button-prev:hover,
.timeline-swiper .swiper-button-next:hover {
  /*background: rgba(0,194,255,0.2);*/
  /*border-color: rgba(0,194,255,0.6);*/
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.6);
  transform: translateY(-50%) scale(1.08);
}
.timeline-swiper .swiper-button-prev::after,
.timeline-swiper .swiper-button-next::after { font-size: 18px; font-weight: 700; }
@media (max-width: 767px) {
  .timeline-swiper { padding: 0 44px; }
  .timeline-swiper .swiper-button-prev,
  .timeline-swiper .swiper-button-next { width: 36px; height: 36px; }
  .timeline-swiper .swiper-button-prev::after,
  .timeline-swiper .swiper-button-next::after { font-size: 14px; }
}
.card-swiper { position: relative; padding-bottom: 8px; }
.card-swiper .swiper-wrapper { align-items: stretch; }
.card-swiper .swiper-slide { height: auto; }
.card-swiper .swiper-pagination {
  position: static; margin-top: 36px;
  display: flex; justify-content: center; align-items: center; gap: 8px;
}
.card-swiper .swiper-pagination-bullet {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(0,128,255,0.2); opacity: 1; transition: all 0.3s ease;
}
.card-swiper .swiper-pagination-bullet:hover { background: rgba(0,128,255,0.4); }
.card-swiper .swiper-pagination-bullet-active {
  width: 26px; border-radius: 4px;
  background: linear-gradient(90deg, #0080ff, #00c2ff);
}