/* ===== 设计变量 ===== */
:root{
  --midnight:#0A1A2F;
  --midnight-2:#11294a;
  --black:#05070D;
  --black-2:#0B1220;
  --ink:#13233B;
  --ink-soft:#51607a;
  --bg:#ffffff;
  --bg-alt:#F4F8FC;
  --line:#E4ECF4;
  --cyan:#2D7FF9;
  --cyan-deep:#1E5FD0;
  --pink:#3B82F6;
  --gold:#2D7FF9;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(13,35,59,.08);
  --shadow-lg:0 24px 60px rgba(13,35,59,.14);
  --maxw:1180px;
  --nav-h:68px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
strong{color:var(--midnight);font-weight:700}

/* ===== 导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:.3s}
.nav.scrolled{background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);box-shadow:0 6px 24px rgba(13,35,59,.06)}
.nav__inner{max-width:var(--maxw);margin:0 auto;height:100%;padding:0 24px;display:flex;align-items:center;gap:20px}
.nav__brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--midnight)}
.nav__logo{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--midnight);color:var(--cyan);font-weight:800;font-size:18px}
.nav__logo-img{width:34px;height:34px;border-radius:9px;object-fit:cover;background:var(--midnight)}
.nav__name{font-size:17px;letter-spacing:.5px}
.nav__menu{display:flex;gap:6px;margin-left:auto}
.nav__menu a{padding:8px 14px;border-radius:8px;font-size:15px;color:var(--ink-soft);font-weight:500;transition:.2s}
.nav__menu a:hover{color:var(--midnight);background:var(--bg-alt)}
.nav__cta{margin-left:8px;padding:9px 20px;border-radius:999px;background:linear-gradient(135deg,#2D7FF9,#1E5FD0);color:#fff;font-size:14px;font-weight:700;border:1px solid rgba(255,255,255,.25);box-shadow:0 6px 18px rgba(45,127,249,.45);transition:.2s;display:inline-flex;align-items:center;gap:6px}
.nav__cta:hover{background:linear-gradient(135deg,#3B82F6,#2D7FF9);transform:translateY(-1px);box-shadow:0 10px 26px rgba(45,127,249,.6)}
.nav__cta-ic{width:15px;height:15px;fill:currentColor;flex:0 0 auto}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav__toggle span{width:24px;height:2px;background:var(--midnight);border-radius:2px;transition:.3s}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;background:radial-gradient(120% 120% at 50% 0%,#0d2f63 0%,#0A1A2F 52%,#05070D 100%);color:#fff;overflow:hidden;padding:120px 24px 80px}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.hero__glow{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;z-index:1}
.hero__glow--cyan{width:520px;height:520px;background:#2D7FF9;top:-120px;left:-80px;animation:float1 14s ease-in-out infinite}
.hero__glow--pink{width:460px;height:460px;background:#3B82F6;bottom:-140px;right:-60px;opacity:.4;animation:float2 16s ease-in-out infinite}
.hero__grid{position:absolute;inset:0;z-index:1;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 75%)}
@keyframes float1{50%{transform:translate(60px,40px)}}
@keyframes float2{50%{transform:translate(-50px,-30px)}}
.hero__mountain{position:absolute;left:0;right:0;bottom:0;z-index:1;line-height:0}
.hero__mountain svg{width:100%;height:200px}
.hero__content{position:relative;z-index:2;max-width:880px}
.hero__eyebrow{color:var(--cyan);font-weight:600;letter-spacing:3px;font-size:13px;margin-bottom:18px;text-transform:uppercase}
.hero__title{font-size:clamp(38px,6vw,72px);line-height:1.1;font-weight:800;letter-spacing:1px;margin-bottom:22px;background:linear-gradient(100deg,#ffffff 18%,#a9c8ff 38%,#ffffff 58%,#d6e6ff 82%);background-size:220% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;animation:titleShimmer 7s linear infinite}
@keyframes titleShimmer{to{background-position:-220% center}}
.hero__sub{font-size:clamp(16px,2vw,20px);color:#cfe1ef;max-width:680px;margin:0 auto 12px}
.hero__ai{display:flex;align-items:center;justify-content:center;gap:8px;font-size:clamp(14px,1.7vw,17px);color:#9fc4ff;margin:0 0 30px;font-weight:500;letter-spacing:1px;min-height:1.4em}
.hero__ai-prefix{color:var(--cyan)}
.hero__ai-cursor{width:2px;height:1.05em;background:#7fb3ff;display:inline-block;margin-left:1px;animation:blink 1s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero__sub strong{color:#fff}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:34px}
.tag{padding:7px 15px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:14px;color:#dfeaf3;backdrop-filter:blur(4px)}
.tag--cyan{border-color:rgba(45,127,249,.5);color:#7fb3ff}
.tag--pink{border-color:rgba(59,130,246,.5);color:#a9c6ff}
.tag--gold{border-color:rgba(45,127,249,.5);color:#7fb3ff}
.hero__actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{padding:13px 28px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.25s;display:inline-block;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.btn--primary{background:rgba(45,127,249,.16);color:#fff;border-color:rgba(125,179,255,.55);box-shadow:0 8px 26px rgba(45,127,249,.28),inset 0 1px 0 rgba(255,255,255,.25)}
.btn--primary:hover{background:rgba(45,127,249,.34);border-color:#2D7FF9;transform:translateY(-2px);box-shadow:0 12px 34px rgba(45,127,249,.45),inset 0 1px 0 rgba(255,255,255,.35)}
.btn--ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.28)}
.btn--ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}
.hero__scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.7);font-size:30px;animation:bob 2s ease-in-out infinite}
@keyframes bob{50%{transform:translate(-50%,10px)}}

/* ===== 滚动进度条 ===== */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:linear-gradient(90deg,#2D7FF9,#7fb3ff);box-shadow:0 0 10px rgba(45,127,249,.7);transition:width .1s linear}

/* ===== 科技关键词跑马灯 ===== */
.techmarquee{background:var(--midnight);color:#cfe1ef;overflow:hidden;padding:14px 0;border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.techmarquee__track{display:flex;align-items:center;white-space:nowrap;width:max-content;animation:marquee 30s linear infinite;will-change:transform}
.techmarquee__item{font-size:14px;letter-spacing:2px;padding:0 8px;color:#bcd6ff;font-weight:500}
.techmarquee__dot{color:var(--cyan);font-size:9px;padding:0 20px}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== 数据看板 ===== */
.stats{background:var(--midnight);color:#fff;padding:54px 0}
.stats__grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;text-align:center}
.stat__num{font-size:clamp(28px,3.4vw,42px);font-weight:800;color:#fff;line-height:1;background:linear-gradient(180deg,#7fb3ff,#2D7FF9);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat__label{margin-top:8px;color:#aac4d6;font-size:14px}

/* ===== 通用 section ===== */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section__head{max-width:760px;margin:0 auto 56px;text-align:center}
.section__eyebrow{color:var(--cyan-deep);font-weight:700;letter-spacing:3px;font-size:13px;margin-bottom:12px}
.section__title{font-size:clamp(28px,4vw,42px);font-weight:800;color:var(--midnight);letter-spacing:.5px}
.section__lead{margin-top:14px;color:var(--ink-soft);font-size:17px}

/* ===== 关于我们 ===== */
.about__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.about__text p{margin-bottom:16px;color:var(--ink-soft);font-size:16px}
.about__points{list-style:none;margin-top:22px;display:grid;gap:12px}
.about__points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink)}
.dot{flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:var(--cyan);margin-top:9px}
.about__cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.mini-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.25s}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(45,127,249,.4)}
.mini-card__icon{font-size:28px;margin-bottom:10px}
.mini-card h3{font-size:18px;color:var(--midnight);margin-bottom:8px}
.mini-card p{font-size:14px;color:var(--ink-soft)}

/* ===== 核心业务 ===== */
.business__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.biz-card{position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;overflow:hidden;box-shadow:var(--shadow);transition:.28s}
.biz-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--cyan),var(--pink))}
.biz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.biz-card__icon{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-size:26px;background:linear-gradient(135deg,#eef4ff,#dce9ff);margin-bottom:16px}
.biz-card h3{font-size:19px;color:var(--midnight);margin-bottom:10px}
.biz-card p{font-size:14.5px;color:var(--ink-soft);margin-bottom:12px}
.biz-card__tag{display:inline-block;font-size:12px;color:var(--cyan-deep);background:#e8f1ff;padding:4px 10px;border-radius:999px;font-weight:600}
.biz-card__products{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}
.biz-chip{font-size:12px;line-height:1;color:var(--midnight);background:#f1f5fb;border:1px solid var(--line);padding:6px 10px;border-radius:8px}
.biz-card__products+.biz-card__tag{margin-top:2px}

/* ===== 合作品牌 / 资质 ===== */
.logowall{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:54px}
.logo-chip{display:flex;align-items:center;gap:9px;padding:12px 20px;border-radius:12px;background:var(--bg);border:1px solid var(--line);font-weight:600;color:var(--midnight);box-shadow:var(--shadow);transition:.22s;font-size:15px}
.logo-chip:hover{transform:translateY(-3px);border-color:rgba(45,127,249,.45)}
.logo-chip .badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px;color:#fff}
.badge--agent{background:var(--cyan-deep)}
.badge--svc{background:var(--pink)}
.badge--excl{background:var(--gold);color:#ffffff}
.badge--first{background:#3B82F6}
.honors{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.honors__title{font-size:20px;color:var(--midnight);margin-bottom:18px;text-align:center}
.honors__list{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:12px 28px}
.honors__list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink-soft)}
.honors__list li::before{content:"✦";position:absolute;left:0;top:0;color:var(--cyan)}

/* ===== 经典案例 ===== */
.cases__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:.28s;overflow:hidden}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.case-card__metric{font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--cyan-deep);line-height:1.1}
.case-card__metric small{font-size:15px;font-weight:600;color:var(--ink-soft)}
.case-card h3{font-size:20px;color:var(--midnight);margin:10px 0 8px}
.case-card p{font-size:14.5px;color:var(--ink-soft)}
.case-card__tag{position:absolute;top:20px;right:20px;font-size:12px;color:#fff;background:var(--pink);padding:4px 12px;border-radius:999px;font-weight:600}

/* ===== 公司新闻 ===== */
.news__meta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:34px}
.news__pill{font-size:13px;color:var(--ink-soft);background:var(--bg);border:1px solid var(--line);padding:7px 16px;border-radius:999px;box-shadow:var(--shadow)}
.news__pill--next{color:var(--cyan-deep);border-color:rgba(45,127,249,.4)}
.news__pill--source{color:var(--pink);border-color:rgba(59,130,246,.35)}
.news__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.26s;display:flex;flex-direction:column;gap:10px}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(45,127,249,.4)}
.news-card__top{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--ink-soft)}
.news-card__src{background:#eef4ff;color:var(--cyan-deep);padding:3px 10px;border-radius:999px;font-weight:600}
.news-card__date{color:var(--ink-soft)}
.news-card h3{font-size:16.5px;color:var(--midnight);line-height:1.5;font-weight:700}
.news-card p{font-size:13.5px;color:var(--ink-soft);flex:1}
.news-card__link{font-size:13px;color:var(--cyan-deep);font-weight:600;align-self:flex-start}
.news-card__pos{font-size:11px;color:#0a9d5a;background:#e6f8ee;padding:2px 9px;border-radius:999px;font-weight:600}
.news__loading,.news__empty{grid-column:1/-1;text-align:center;color:var(--ink-soft);padding:40px}

/* ===== 社会责任 ===== */
.csr__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.csr__card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow);transition:.26s}
.csr__card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.csr__icon{font-size:34px;margin-bottom:12px}
.csr__card h3{font-size:18px;color:var(--midnight);margin-bottom:10px}
.csr__card p{font-size:14px;color:var(--ink-soft)}

/* ===== 联系我们 ===== */
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:stretch}
.contact__list{list-style:none;margin:24px 0;display:grid;gap:14px}
.contact__list li{display:grid;grid-template-columns:90px 1fr;gap:14px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.contact__k{color:var(--cyan-deep);font-weight:600;font-size:14px}
.contact__v{color:var(--ink);font-size:15px}
.contact__biz{display:grid;gap:8px;margin-top:8px}
.contact__biz span{font-size:13.5px;color:var(--ink-soft);background:var(--bg-alt);padding:10px 14px;border-radius:10px;border-left:3px solid var(--cyan)}
.contact__card{position:relative;background:var(--midnight);color:#fff;border-radius:var(--radius);padding:36px;overflow:hidden;box-shadow:var(--shadow-lg)}
.contact__card-bg{position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(45,127,249,.35),transparent 70%)}
.contact__card h3{font-size:24px;margin-bottom:10px;position:relative}
.contact__card p{color:#bcd2e0;font-size:14.5px;margin-bottom:22px;position:relative}
.contact__form{display:grid;gap:14px;position:relative}
.contact__form input,.contact__form textarea{padding:13px 16px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;font-family:inherit;outline:none;transition:.2s}
.contact__form input::placeholder,.contact__form textarea::placeholder{color:#9fb6c6}
.contact__form input:focus,.contact__form textarea:focus{border-color:var(--cyan);background:rgba(255,255,255,.1)}
.contact__form textarea{min-height:88px;resize:vertical}
.contact__hint{font-size:12.5px;color:#8fa9ba}

/* ===== 页脚 ===== */
.footer{background:var(--midnight);color:#cdddec;padding:56px 0 26px}
.footer__inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.2fr 2fr;gap:40px}
.footer__brand{display:flex;gap:14px;align-items:center}
.footer__logo-img{width:46px;height:46px;border-radius:11px;object-fit:cover;background:#13315C;flex:0 0 auto}
.footer__name{color:#fff;font-weight:700;font-size:16px}
.footer__en{font-size:11px;color:#7c98ab;letter-spacing:.5px;margin-top:3px}
.footer__cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer__col h4{color:#fff;font-size:14px;margin-bottom:14px}
.footer__col a{display:block;font-size:13.5px;color:#a9c2d3;padding:5px 0;transition:.2s}
.footer__col a:hover{color:var(--cyan)}
.footer__bottom{max-width:var(--maxw);margin:36px auto 0;padding:20px 24px 0;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7c98ab}

/* ===== 揭示动画 ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .stats__grid{grid-template-columns:repeat(3,1fr);gap:26px}
  .about__grid{grid-template-columns:1fr}
  .business__grid{grid-template-columns:repeat(2,1fr)}
  .news__grid{grid-template-columns:repeat(2,1fr)}
  .csr__grid{grid-template-columns:repeat(2,1fr)}
  .contact__grid{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr}
}
@media(max-width:680px){
  :root{--nav-h:60px}
  .nav__menu{position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;background:#fff;padding:14px 24px;gap:4px;box-shadow:0 12px 30px rgba(13,35,59,.12);transform:translateY(-120%);transition:.3s;z-index:90}
  .nav__menu.open{transform:none}
  .nav__cta{display:none}
  .nav__toggle{display:flex}
  .section{padding:64px 0}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .business__grid,.news__grid,.cases__grid,.csr__grid,.about__cards{grid-template-columns:1fr}
  .honors__list{grid-template-columns:1fr}
  .footer__cols{grid-template-columns:1fr 1fr}
  .hero__title{font-size:40px}
}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}*{animation:none!important}}

/* ===== 案例配图 / 品牌 Logo 图 ===== */
.case-card__img{margin:-22px -22px 16px;border-radius:14px 14px 0 0;overflow:hidden;aspect-ratio:16/9;background:#eef4fb}
.case-card__img img{width:100%;height:100%;object-fit:cover;display:block}
.logo-chip__img{max-width:96px;max-height:40px;width:auto;height:auto;object-fit:contain;filter:grayscale(.1)}
.logo-chip__name{font-weight:600;color:var(--midnight)}

/* ===== 后台：配图字段 / 图片库 ===== */
.img-field{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.img-prev{width:84px;height:84px;border-radius:12px;border:1px dashed var(--line);object-fit:cover;background:var(--mid);padding:4px}
.media-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:8px}
.media-item{border:1px solid var(--line);border-radius:12px;padding:10px;background:#fafcff;display:flex;flex-direction:column;gap:8px}
.media-item img{width:100%;height:120px;object-fit:cover;border-radius:8px;background:#eef4fb}
.media-item__name{font-size:12px;color:#667;word-break:break-all}
.media-item__url{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:7px;font-size:12px;color:#334;background:#fff}
.media-item__acts{display:flex;gap:8px}
.mini{padding:5px 10px;border:1px solid var(--line);background:#fff;border-radius:6px;font-size:12px;cursor:pointer}
.mini.del{color:#e23;border-color:#f3c9c9}