:root{
  --bg:#0d1426;
  --bg-2:#0b1024;
  --text:#e8ecf3;
  --muted:#8b95a8;
  --accent:#f7931a;
  --accent-2:#ffb547;
  --card:#14203b;
  --card-border:rgba(247,147,26,.22);
  --card-hover:rgba(247,147,26,.55);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* 顶部跑马灯 */
.top-banner{
  position:fixed;top:0;left:0;right:0;height:32px;overflow:hidden;
  background:rgba(13,20,38,.9);
  z-index:30;
  display:flex;align-items:center;
  font-size:12px;color:#cfd4e0;
  border-bottom:1px solid rgba(255,255,255,.04);
}
.banner-track{
  white-space:nowrap;padding-left:100%;
  animation:scroll 60s linear infinite;
}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-100%)}}

/* 导航 */
.header{
  position:fixed;top:32px;left:0;right:0;height:80px;z-index:20;
  display:flex;align-items:center;
  transition:background .25s;
}
.nav-inner{
  width:100%;max-width:1440px;margin:0 auto;
  padding:0 80px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:12px}
.logo-img{height:44px;width:auto;display:block;image-rendering:-webkit-optimize-contrast}
.logo-icon{width:44px;height:44px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-zh{font-size:20px;font-weight:700;letter-spacing:2px}
.logo-en{font-size:11px;color:#a8b1c2;letter-spacing:4px;margin-top:2px}
.nav{
  position:fixed;top:32px;right:80px;height:80px;z-index:21;
  display:flex;align-items:center;gap:40px;
}
.nav-backdrop{display:none}
.nav-list{display:flex;gap:46px;font-size:24px}
.nav-item{cursor:pointer;transition:color .2s;color:#d6dbe5;position:relative}
.nav-item:hover,.nav-item.active{color:var(--accent)}
.nav-item.has-sub>span::after{content:"▾";font-size:inherit;margin-left:6px;opacity:.85;display:inline-block;transition:transform .2s}
.nav-item.has-sub:hover>span::after{transform:rotate(180deg)}
.sub-nav{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);
  min-width:140px;padding:8px 0;margin:0;list-style:none;
  background:rgba(20,28,48,.95);border:1px solid rgba(255,255,255,.08);
  border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.3);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s,transform .2s,visibility .2s;z-index:100;
}
.nav-item.has-sub:hover>.sub-nav{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}
.sub-nav li{padding:0;border:none}
.sub-nav a{
  display:block;padding:8px 18px;font-size:14px;color:#d6dbe5;white-space:nowrap;
  transition:color .2s,background .2s;
}
.sub-nav a:hover{color:var(--accent);background:rgba(255,255,255,.05)}
body.light .sub-nav{background:#fff;border-color:rgba(0,0,0,.08)}
body.light .sub-nav a{color:#3f4454}
body.light .sub-nav a:hover{background:rgba(0,0,0,.04)}
.lang-select{
  display:flex;align-items:center;gap:8px;font-size:14px;color:#d6dbe5;cursor:pointer;
}
.lang-select .arrow{font-size:10px;color:var(--accent)}

/* 汉堡按钮 */
.nav-toggle{
  display:none;width:36px;height:36px;padding:6px;flex-direction:column;justify-content:space-between;z-index:40;
}
.nav-toggle span{
  display:block;width:100%;height:2px;background:#fff;border-radius:2px;
  transition:transform .25s,opacity .25s;
}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(10px) rotate(45deg)}
body.menu-open .nav-toggle span:nth-child(2){opacity:0}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-10px) rotate(-45deg)}
body.light .nav-toggle span{background:#1b1e25}

/* 右侧分页点 */
.pagination{
  position:fixed;right:30px;top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:12px;z-index:15;
}
.dot{width:6px;height:6px;border-radius:50%;background:#5e6478;transition:all .3s}
.dot.active{background:var(--accent);transform:scale(1.5)}

/* 全屏幻灯片容器 */
.slides{position:absolute;inset:0;top:0}
.slide{
  position:absolute;inset:0;
  padding-top:112px;padding-bottom:40px;
  opacity:0;pointer-events:none;
  transition:opacity .6s ease;
  display:flex;align-items:safe center;justify-content:center;
  background:var(--bg);
  overflow-y:auto;
}
.slide.active{opacity:1;pointer-events:auto;z-index:5}
.slide-inner{
  width:100%;max-width:1320px;margin:0 auto;padding:0 80px;
}
.section-title{
  text-align:center;font-size:22px;font-weight:600;color:#dfe3ec;margin-bottom:48px;
  letter-spacing:2px;
}

/* ========== Slide 1 ========== */
.slide-home{
  background:var(--bg);
  /* 保留 .slide 的 position:absolute / inset:0，作为 .hero-slide 的定位上下文 */
  overflow:hidden;
  padding:0;
}
.ambient-orange{display:none}

/* 首屏轮播图（整屏 banner 形式） */
.hero-carousel{
  position:absolute;inset:0;z-index:1;
}
.hero-slide{
  position:absolute;inset:0;
  background-position:center;background-size:cover;background-repeat:no-repeat;
  opacity:0;transition:opacity 1.2s ease;
  display:flex;align-items:center;
  pointer-events:none;
}
.hero-slide.active{opacity:1;pointer-events:auto}
/* 每张幻灯片自身蒙层 */
.hero-slide::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(13,20,38,.78) 0%, rgba(13,20,38,.45) 50%, rgba(13,20,38,.25) 100%);
  pointer-events:none;
}
.hero-slide-inner{
  position:relative;z-index:2;
  width:100%;max-width:1320px;margin:0 auto;padding:0 80px;
}
.hero-slide-inner .tag-line{color:var(--accent);font-size:15px;margin-bottom:26px;letter-spacing:1px}
.hero-slide-inner .hero-title{
  font-size:60px;font-weight:800;letter-spacing:3px;margin-bottom:28px;line-height:1.15;color:#fff;
}
.hero-slide-inner .hero-sub{color:#cdd5e6;font-size:17px;margin-bottom:48px;letter-spacing:1px;max-width:620px}
.hero-slide-inner .hero-actions{display:flex;gap:22px}

/* 左右箭头 */
.hero-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:6;
  width:48px;height:48px;border-radius:50%;
  background:rgba(0,0,0,.35);color:#fff;font-size:32px;line-height:46px;
  border:1px solid rgba(255,255,255,.25);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(6px);transition:background .2s, border-color .2s;
}
.hero-arrow:hover{background:var(--accent);border-color:var(--accent)}
.hero-prev{left:32px}
.hero-next{right:32px}

/* 圆点指示 */
.hero-dots{
  position:absolute;left:50%;bottom:48px;transform:translateX(-50%);
  display:flex;gap:14px;z-index:6;
  padding:10px 18px;border-radius:30px;
  background:rgba(0,0,0,.35);backdrop-filter:blur(6px);
}
.hero-dots .dot{
  width:12px;height:12px;border-radius:50%;
  background:rgba(255,255,255,.45);cursor:pointer;
  transition:background .2s, transform .2s;
  border:1px solid rgba(255,255,255,.6);
}
.hero-dots .dot:hover{background:rgba(255,255,255,.8)}
.hero-dots .dot.active{
  background:var(--accent);transform:scale(1.3);border-color:var(--accent);
}

@media (max-width: 900px){
  .hero-slide-inner{padding:0 24px}
  .hero-slide-inner .hero-title{font-size:32px;letter-spacing:1px;margin-bottom:18px}
  .hero-slide-inner .hero-sub{font-size:14px;margin-bottom:28px}
  .hero-arrow{width:38px;height:38px;font-size:24px;line-height:36px}
  .hero-prev{left:12px}
  .hero-next{right:12px}
  .hero-dots{bottom:24px;padding:8px 14px;gap:10px}
}
.home-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;
}
.tag-line{color:var(--accent);font-size:15px;margin-bottom:34px;letter-spacing:1px}
.hero-title{
  font-size:66px;font-weight:800;letter-spacing:4px;margin-bottom:44px;line-height:1.1;
  color:#fff;white-space:nowrap;
}
.hero-title .wsp{display:inline-block;width:28px}
.hero-sub{color:#b9c2d4;font-size:16px;margin-bottom:72px;letter-spacing:1px}
.hero-actions{display:flex;gap:28px}
.btn{
  padding:14px 40px;border-radius:30px;font-size:15px;
  transition:all .25s;border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(180deg,#ffb547,#f7931a);
  color:#fff;box-shadow:0 10px 26px rgba(247,147,26,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(247,147,26,.45)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

.home-illustration{display:flex;justify-content:center}
.home-illustration svg{width:100%;max-width:620px;height:auto}
.float{animation:floatY 3s ease-in-out infinite}
.float.delay-1{animation-delay:-1s}
.float.delay-2{animation-delay:-2s}
@keyframes floatY{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

/* ========== Slide 2 ========== */
.slide-services{
  background:url('images/bg2.png') center/cover no-repeat, var(--bg);
}
.dots-deco{display:none}
.services-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.svc-card{
  border:1px solid var(--card-border);
  border-radius:8px;
  padding:28px 24px;
  background:rgba(18,27,48,.35);
  transition:all .28s;
  position:relative;
  min-height:260px;
}
.svc-card:hover{border-color:var(--card-hover);transform:translateY(-4px)}
.svc-icon{
  width:56px;height:56px;border-radius:50%;
  background:rgba(247,147,26,.08);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:26px;
  color:var(--accent);
  transition:transform .3s,background .3s;
}
.svc-card:hover .svc-icon{
  transform:scale(1.06) rotate(-4deg);
  background:rgba(247,147,26,.18);
}
.svc-icon i{line-height:1}
.svc-card h3{font-size:17px;margin-bottom:14px;font-weight:600;color:#eef1f7}
.svc-card p{font-size:13px;color:#8893a7;line-height:1.7;margin-bottom:18px}
.svc-link{color:#cdd3e0;font-size:12px;border-bottom:1px solid rgba(255,255,255,.25);padding-bottom:2px;cursor:pointer}
.svc-link:hover{color:var(--accent);border-color:var(--accent)}
.hot{
  display:inline-block;padding:1px 6px;border-radius:3px;
  background:linear-gradient(90deg,#ff6a00,#ee0979);
  color:#fff;font-size:10px;margin-left:6px;vertical-align:middle;
}

/* ========== Slide 3 ========== */
.slide-products{
  background:url('images/bg3.png') center/cover no-repeat, var(--bg);
}
.products-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
}
.prod-card{
  position:relative;
  background-repeat:no-repeat;
  background-position:center;
  background-size:cover;
  border-radius:20px;
  padding:110px 30px 40px;
  text-align:center;
  transition:transform .3s;
  min-height:340px;
  overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-start;align-items:center;
}
.prod-card > *{position:relative;z-index:1;text-shadow:0 2px 8px rgba(0,0,0,.6)}
.prod-card:hover{transform:translateY(-6px)}
.prod-card h3{font-size:17px;margin-bottom:14px;color:#f0f3fa;font-weight:600}
.prod-card p{font-size:13px;color:#9aa3b8;line-height:1.8}

/* ========== Slide 4 News ========== */
.slide-news.light{
  background:url('images/bg4.png') center/cover no-repeat, #f5f6fa;
  color:#2a2d36;
}
body.light .top-banner{background:rgba(245,246,250,.95);color:#4a5060;border-bottom-color:rgba(0,0,0,.05)}
body.light .logo-zh{color:#1b1e25}
body.light .logo-en{color:#6e7489}
body.light .logo-icon circle[stroke="#fff"]{stroke:#1b1e25}
body.light .logo-img{filter:invert(1) brightness(.8)}
body.light .nav-item{color:#3f4454}
body.light .nav-item.active,body.light .nav-item:hover{color:var(--accent)}
body.light .lang-select{color:#3f4454}
body.light .dot{background:#bac0cc}
body.light .dot.active{background:var(--accent)}
.news-inner{padding-top:20px}
.news-tabs{display:flex;justify-content:center;gap:20px;margin-bottom:40px}
.news-tabs .tab{
  padding:10px 28px;border-radius:24px;font-size:14px;color:#63687a;
}
.news-tabs .tab.active{background:var(--accent);color:#fff}
.news-tabs .tab{cursor:pointer}
.news-list{max-width:1080px;margin:0 auto}
.news-item{
  display:grid;grid-template-columns:220px 1fr 140px;gap:28px;
  padding:22px 0;border-bottom:1px solid #e0e2ec;align-items:center;
}
.news-thumb{
  width:220px;height:120px;border-radius:6px;overflow:hidden;background:#111;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb-text{font-size:18px}
.news-body h3{font-size:16px;margin-bottom:10px;color:#1b1e25}
.news-body p{font-size:13px;color:#626878;line-height:1.7}
.news-date{text-align:right;color:#8b90a0}
.news-date .md{font-size:28px;color:#9aa0b0}
.news-date .yr{font-size:13px;margin-top:2px}
.arrow-btn{
  margin-top:12px;width:38px;height:38px;border-radius:50%;
  border:1px solid #c4c8d3;color:#8b90a0;font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s;
}
.arrow-btn:hover{border-color:var(--accent);color:var(--accent)}

/* 首页新闻区：两列 × 5 行 */
.slide-news{align-items:flex-start}
.slide-news .news-inner{padding-top:80px}
.slide-news .news-list{
  max-width:1180px;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 28px;
}
.slide-news .news-list:not(.active){display:none}
.slide-news .news-item{
  grid-template-columns:120px 1fr 60px;
  gap:14px;padding:12px 0;
}
.slide-news .news-thumb{width:120px;height:72px}
.slide-news .news-body h3{
  font-size:14px;margin-bottom:4px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.slide-news .news-body p{
  font-size:12px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.slide-news .news-date .md{font-size:18px}
.slide-news .news-date .yr{font-size:11px}
.slide-news .arrow-btn{margin-top:4px;width:28px;height:28px;font-size:12px}

/* ========== Slide 5 Partners ========== */
.slide-partners{
  background:url('images/bg5.png') center/cover no-repeat, #0a1024;
  overflow:hidden;
}
.stars,.planet{display:none}
.partners-inner{position:relative;z-index:2}
.partner-tabs{display:flex;justify-content:center;gap:20px;margin-bottom:36px}
.partner-tabs .tab{padding:8px 24px;border-radius:22px;font-size:14px;color:#b0b7c8}
.partner-tabs .tab.active{background:var(--accent);color:#fff}
.partners-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;max-width:1100px;margin:0 auto;
}
.p-card{
  height:74px;border-radius:8px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:13px;color:#c1c7d6;line-height:1.35;text-align:center;
  transition:all .25s;
}
.p-card small{font-size:10px;color:#7d8398;letter-spacing:1px}
.p-card:hover{border-color:rgba(247,147,26,.4);color:#fff}

/* ========== Slide 6 About ========== */
.slide-about{
  background:url('images/bg7.png') center/cover no-repeat, var(--bg-2);
}
.about-dots{display:none}
.about-inner{text-align:center;position:relative;z-index:2}
.about-title{font-size:34px;font-weight:700;margin-bottom:6px;color:#fff}
.about-en{
  font-size:44px;font-weight:700;color:rgba(255,255,255,.06);letter-spacing:8px;
  margin-bottom:36px;
}
.about-body{max-width:960px;margin:0 auto;text-align:left}
.about-body p{font-size:14px;line-height:2;color:#b8c0d2;margin-bottom:18px}

/* ========== Slide 7 Contact ========== */
.slide-contact{
  background:url('images/bg6.png') center/cover no-repeat, var(--bg-2);
  overflow:hidden;
}
.waves{display:none}
.contact-inner{position:relative;z-index:2;padding-top:10px}
.contact-card{
  max-width:1080px;margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;
  background:linear-gradient(180deg,#f6f7fa 0%,#fff 40%,#f4f5f9 100%);
  border-radius:10px;overflow:hidden;min-height:560px;
  box-shadow:0 30px 60px rgba(0,0,0,.45);
}
.contact-left,.contact-right{min-width:0}
.contact-form,.contact-form .row{min-width:0}
.contact-form input,.contact-form textarea{width:100%;min-width:0}
.contact-left{padding:46px 50px;color:#2a2d36}
.contact-right{padding:46px 50px;background:#182444;color:#e8ecf3}
.contact-card h3{font-size:20px;margin-bottom:14px;font-weight:600}
.line{width:36px;height:2px;background:var(--accent);margin-bottom:28px}
.contact-list li{
  display:flex;gap:14px;margin-bottom:22px;font-size:14px;line-height:1.6;
}
.contact-list .ico{
  width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;flex:none;
  background:rgba(247,147,26,.12);color:var(--accent);font-size:14px;
}
.qrs{display:flex;gap:36px;margin-top:10px}
.qr{text-align:center;color:#5a6070;font-size:12px}
.qr-img{
  width:100px;height:100px;display:block;margin:0 auto 8px;object-fit:contain;
}

.contact-form{display:flex;flex-direction:column;gap:14px}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form input,
.contact-form textarea{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  color:#e8ecf3;padding:12px 14px;border-radius:6px;font-size:13px;
  outline:none;transition:border-color .2s;font-family:inherit;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:#8089a0}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--accent)}
.contact-form textarea{resize:none;min-height:100px}
.captcha-row{grid-template-columns:1fr 120px}
.captcha-box{
  background:#fff;color:#222;font-weight:600;letter-spacing:3px;
  display:flex;align-items:center;justify-content:center;
  border-radius:6px;user-select:none;font-family:monospace;font-size:18px;
  font-style:italic;
  background-image:repeating-linear-gradient(45deg,rgba(0,0,0,.04) 0 2px,transparent 2px 8px);
}
.btn-submit{margin-top:8px;align-self:flex-start;padding:12px 70px}

/* 页脚 */
.footer{
  position:absolute;left:0;right:0;bottom:12px;
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:0 40px;box-sizing:border-box;
  font-size:12px;color:#7d8398;z-index:2;
}
.friend-links{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:14px;color:#7d8398;font-size:12px}
.footer .copyright{text-align:center}
.foot-icons{display:flex;gap:24px;align-items:center;justify-content:center;flex-wrap:wrap}
.friend-links .fl-label{color:var(--accent);margin-right:4px}
.friend-links a{color:#7d8398;transition:color .2s}
.friend-links a:hover{color:var(--accent)}
.badge{
  display:inline-block;padding:1px 6px;background:rgba(247,147,26,.2);
  color:var(--accent);border-radius:3px;margin-right:6px;font-size:10px;
}

/* ========== 响应式 ========== */
@media (max-width:1180px){
  .services-grid{grid-template-columns:repeat(3,1fr)}
  .partners-grid{grid-template-columns:repeat(4,1fr)}
  .nav-inner{padding:0 40px}
  .slide-inner{padding:0 40px}
  .nav-list{gap:30px}
  .nav{right:40px}
}

/* ====== 平板 ≤900px ====== */
@media (max-width:900px){
  .home-grid{grid-template-columns:1fr;gap:20px}
  .hero-title{font-size:52px;white-space:normal}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .products-grid{grid-template-columns:repeat(2,1fr)}
  .partners-grid{grid-template-columns:repeat(3,1fr)}
  .contact-card{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:10px;text-align:center}
  .news-thumb{width:100%;height:180px;margin:0 auto}
  .news-date{text-align:center}
  .slide-news .news-list{grid-template-columns:1fr}
  .slide-news .news-thumb{width:100%;height:160px}
}

/* ====== 手机 ≤768px ====== */
@media (max-width:768px){
  html,body{overflow:auto;height:auto;min-height:100%}
  body{overflow-x:hidden}

  .top-banner{height:28px;font-size:11px}
  .banner-track{animation-duration:40s}

  .header{height:58px;top:28px;background:rgba(13,20,38,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.05)}
  body.light .header{background:rgba(245,246,250,.95);border-bottom-color:rgba(0,0,0,.06)}
  .nav-inner{padding:0 16px}
  .logo-img{height:34px}

  .nav-toggle{display:flex}
  .nav{
    position:fixed;top:0;right:0;bottom:0;height:100vh;width:78%;max-width:320px;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:90px 28px 30px;gap:8px;
    background:rgba(13,20,38,.97);
    transform:translateX(100%);transition:transform .3s ease;
    border-left:1px solid rgba(255,255,255,.06);z-index:35;
    overflow-y:auto;
  }
  body.menu-open .nav{transform:translateX(0)}
  body.light .nav{background:rgba(245,246,250,.98);border-left-color:rgba(0,0,0,.06)}
  .nav-list{flex-direction:column;gap:0;font-size:16px}
  .nav-item{padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.06)}
  body.light .nav-item{border-bottom-color:rgba(0,0,0,.08)}
  .lang-select{padding:14px 4px;margin-top:8px;border-top:1px solid rgba(255,255,255,.06)}
  body.light .lang-select{border-top-color:rgba(0,0,0,.08)}

  /* 遮罩 */
  .nav-backdrop{
    display:block;position:fixed;inset:0;background:rgba(0,0,0,.45);
    opacity:0;pointer-events:none;transition:opacity .25s;z-index:30;
  }
  body.menu-open .nav-backdrop{opacity:1;pointer-events:auto}

  /* 幻灯片变为自然流式滚动 */
  .slides{position:static}
  .slide{
    position:relative;inset:auto;opacity:1;pointer-events:auto;
    min-height:100vh;height:auto;
    padding:96px 0 48px;
    overflow:visible;
    background-size:cover;background-position:center;
    display:block;
  }
  .slide.active{z-index:auto}
  .slide-inner{padding:0 20px;max-width:100%}

  /* 右侧分页点 */
  .pagination{right:10px;gap:10px}
  .dot{width:5px;height:5px}

  /* Home */
  .slide-home{
    background:var(--bg);
    min-height:auto;height:auto;
    padding:0;
  }
  .home-grid{padding-top:10px}
  .home-text{position:relative;z-index:2}
  .tag-line{margin-bottom:18px;font-size:13px}
  .hero-title{font-size:34px;letter-spacing:2px;margin-bottom:20px}
  .hero-title .wsp{width:12px}
  .hero-sub{font-size:13px;margin-bottom:34px}
  .hero-actions{gap:14px;flex-wrap:wrap}
  .btn{padding:11px 28px;font-size:14px}
  .home-illustration{display:none !important}

  /* 移动端 banner：按比例显示，不再满屏裁剪 */
  .hero-carousel{
    position:relative;inset:auto;
    width:100%;
    aspect-ratio: 3 / 4;
    margin-top:86px; /* top-banner(28) + header(58) */
    overflow:hidden;
  }
  .hero-slide{align-items:flex-end;padding-bottom:72px}
  .hero-slide::before{
    background:linear-gradient(180deg,
      rgba(13,20,38,.25) 0%,
      rgba(13,20,38,.55) 55%,
      rgba(13,20,38,.92) 100%);
  }
  .hero-slide-inner{padding:0 20px}
  .hero-slide-inner .tag-line{font-size:12px;margin-bottom:12px}
  .hero-slide-inner .hero-title{font-size:24px;letter-spacing:1px;margin-bottom:12px;line-height:1.3}
  .hero-slide-inner .hero-sub{font-size:13px;margin-bottom:20px;max-width:100%;line-height:1.6}
  .hero-slide-inner .hero-actions{gap:10px;flex-wrap:wrap}
  .hero-slide-inner .hero-actions .btn{padding:9px 20px;font-size:13px}
  .hero-arrow{width:32px;height:32px;font-size:20px;line-height:30px}
  .hero-prev{left:8px}
  .hero-next{right:8px}
  .hero-dots{bottom:14px;padding:5px 10px;gap:7px}
  .hero-dots .dot{width:7px;height:7px}

  /* Services */
  .section-title{font-size:17px;margin-bottom:28px;padding:0 10px;letter-spacing:1px;line-height:1.5}
  .services-grid{grid-template-columns:1fr;gap:14px}
  .svc-card{padding:18px 14px;min-height:210px}
  .svc-icon{width:44px;height:44px;font-size:20px;margin-bottom:16px}
  .svc-card h3{font-size:14px;margin-bottom:8px}
  .svc-card p{font-size:12px;line-height:1.6;margin-bottom:12px}
  .svc-link{font-size:11px}

  /* Products */
  .products-grid{grid-template-columns:1fr;gap:14px}
  .prod-card{padding:78px 18px 24px;min-height:260px;background-size:cover;background-position:center}
  .prod-card h3{font-size:14px;margin-bottom:10px}
  .prod-card p{font-size:12px;line-height:1.65}

  /* News */
  .news-tabs{gap:8px;margin-bottom:24px}
  .news-tabs .tab{padding:8px 16px;font-size:13px}
  .news-item{padding:16px 0;text-align:left;grid-template-columns:1fr}
  .news-thumb{height:160px}
  .news-body h3{font-size:14px;line-height:1.5}
  .news-body p{font-size:12px}
  .news-date{display:flex;align-items:center;justify-content:space-between;margin-top:6px;text-align:left}
  .news-date .md{font-size:20px}
  .news-date .yr{font-size:12px;margin-left:6px}
  .arrow-btn{margin-top:0;width:32px;height:32px;font-size:14px}

  /* Partners */
  .partner-tabs{gap:10px;margin-bottom:24px}
  .partner-tabs .tab{padding:6px 18px;font-size:13px}
  .partners-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .p-card{height:62px;font-size:12px;padding:4px}
  .p-card small{font-size:9px}

  /* About */
  .slide-about{min-height:auto !important;height:auto;padding:80px 0 30px}
  .about-title{font-size:22px;margin-bottom:4px}
  .about-en{font-size:22px;letter-spacing:3px;margin-bottom:14px}
  .about-body p{font-size:13px;line-height:1.85;margin-bottom:10px}

  /* Contact */
  .contact-card{min-height:0;border-radius:8px;box-shadow:0 16px 30px rgba(0,0,0,.4)}
  .contact-left,.contact-right{padding:28px 22px}
  .contact-card h3{font-size:17px}
  .line{margin-bottom:20px}
  .contact-list li{margin-bottom:16px;font-size:13px}
  .contact-list .ico{width:26px;height:26px;font-size:12px}
  .qrs{gap:24px;justify-content:center}
  .qr-img{width:90px;height:90px}
  .contact-form input,.contact-form textarea{padding:10px 12px;font-size:13px}
  .contact-form textarea{min-height:84px}
  .captcha-row{grid-template-columns:1fr 100px}
  .btn-submit{padding:11px 50px;align-self:stretch}

  .footer{position:static;margin-top:28px;flex-direction:column;gap:10px;padding:0 16px;text-align:center}
  .foot-icons{gap:18px;flex-wrap:wrap;justify-content:center}
}

/* ====== 小屏 ≤480px ====== */
@media (max-width:480px){
  .logo-img{height:30px}
  .hero-title{font-size:28px;letter-spacing:1px}
  .hero-sub{font-size:12px}
  .hero-carousel{aspect-ratio: 4 / 5}
  .hero-slide{padding-bottom:60px}
  .hero-slide-inner .hero-title{font-size:21px;margin-bottom:10px}
  .hero-slide-inner .hero-sub{font-size:12px;margin-bottom:16px}
  .hero-slide-inner .hero-actions .btn{padding:8px 16px;font-size:12px}
  .services-grid{grid-template-columns:1fr;gap:12px}
  .products-grid{grid-template-columns:1fr;gap:14px}
  .partners-grid{grid-template-columns:repeat(2,1fr)}
  .svc-card{min-height:0;padding:20px 16px}
  .prod-card{min-height:0}
  .news-thumb{height:140px}
  .qrs{gap:16px}
  .qr-img{width:80px;height:80px}
}

/* ====== 超小屏 ≤360px ====== */
@media (max-width:360px){
  .hero-title{font-size:24px}
  .nav-inner{padding:0 12px}
  .slide-inner{padding:0 14px}
}

/* ========== 右侧悬浮联系栏 ========== */
.side-contact{
  position:fixed;right:18px;bottom:90px;z-index:30;
  display:flex;flex-direction:column;gap:10px;
}
.sc-item{
  position:relative;width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(20,28,48,.92);color:#dfe3ec;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 6px 18px rgba(0,0,0,.35);
  backdrop-filter:blur(8px);
  font-size:18px;
  transition:transform .2s,background .2s,color .2s,border-color .2s;
  cursor:pointer;
}
.sc-item:hover{
  background:var(--accent);color:#fff;border-color:var(--accent);
  transform:translateY(-2px);
}
.sc-pop{
  position:absolute;right:calc(100% + 14px);top:50%;transform:translateY(-50%) translateX(8px);
  background:#141c30;color:#e6ebf5;
  border:1px solid rgba(255,255,255,.08);border-radius:10px;
  padding:12px 14px;white-space:nowrap;
  box-shadow:0 10px 26px rgba(0,0,0,.45);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s,transform .22s,visibility .22s;
}
.sc-pop::after{
  content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%) rotate(45deg);
  width:10px;height:10px;background:#141c30;
  border-right:1px solid rgba(255,255,255,.08);
  border-top:1px solid rgba(255,255,255,.08);
}
.sc-item:hover .sc-pop{
  opacity:1;visibility:visible;pointer-events:auto;
  transform:translateY(-50%) translateX(0);
}
.sc-pop-qr{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px}
.sc-pop-qr img{width:118px;height:118px;display:block;border-radius:6px;background:#fff;padding:4px}
.sc-pop-qr span{font-size:12px;color:#a8b1c2;letter-spacing:1px}
.sc-pop-tel{display:flex;flex-direction:column;align-items:flex-start;gap:2px}
.sc-tel-label{font-size:11px;color:#a8b1c2;letter-spacing:1px}
.sc-tel-num{font-size:16px;font-weight:600;color:var(--accent);letter-spacing:.5px}

body.light .sc-item{background:#fff;color:#3f4454;border-color:rgba(0,0,0,.08)}
body.light .sc-pop{background:#fff;color:#3f4454;border-color:rgba(0,0,0,.08)}
body.light .sc-pop::after{background:#fff;border-color:rgba(0,0,0,.08)}

@media (max-width:900px){
  .side-contact{right:10px;bottom:70px;gap:8px}
  .sc-item{width:40px;height:40px;font-size:15px}
  .sc-pop-qr img{width:100px;height:100px}
  .sc-tel-num{font-size:14px}
}