/* ============================================================
   本昇科技官网 · 设计系统 style.css
   亮色科技蓝白 · 避免 AI 味（克制、强排版、网格感）
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Source Han Sans SC",sans-serif;
  font-family:var(--ff-en),var(--ff-sans);
  color:var(--body);background:var(--bg);line-height:1.7;font-size:15px;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:inherit}

/* ---------- 2. 设计变量 ---------- */
:root{
  --brand:#0B3D91;
  --brand-2:#1E88E5;
  --accent:#06B6D4;
  --ink:#0F172A;
  --body:#475569;
  --muted:#94A3B8;
  --line:#E2E8F0;
  --bg:#FFFFFF;
  --bg-alt:#F5F7FA;
  --dark:#0A1F44;
  --radius:10px;
  --radius-sm:8px;
  --shadow:0 4px 24px rgba(11,61,145,.06);
  --shadow-hover:0 14px 40px rgba(11,61,145,.14);
  --container:1200px;
  --ff-sans:"PingFang SC","Microsoft YaHei","HarmonyOS SC","Source Han Sans SC",sans-serif;
  --ff-en:"Inter","PingFang SC","Microsoft YaHei",sans-serif;
}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4{color:var(--ink);font-weight:800;line-height:1.25}
h1{font-size:clamp(2rem,4vw,3.2rem);letter-spacing:-.5px}
h2{font-size:clamp(1.6rem,2.6vw,2.3rem)}
h3{font-size:1.25rem;font-weight:700}
h4{font-size:1.05rem;font-weight:700}
p{color:var(--body)}
.lead{font-size:1.05rem;color:var(--body)}
.en{font-family:var(--ff-en);font-weight:400;letter-spacing:.18em;text-transform:uppercase}

/* ---------- 4. 布局工具 ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--alt{background:var(--bg-alt)}
.section--tight{padding:56px 0}
.grid{display:grid;gap:28px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.text-center{text-align:center}
.mt-s{margin-top:14px}.mt-m{margin-top:26px}.mt-l{margin-top:44px}

/* 区块标题：左竖条 + 中文 + 英文小标 */
.section-head{margin-bottom:48px}
.section-head--center{text-align:center}
.section-title{display:flex;align-items:center;gap:14px;font-size:1.9rem;color:var(--ink)}
.section-title::before{content:"";width:5px;height:26px;background:linear-gradient(var(--brand),var(--accent));border-radius:3px;flex:none}
.section-head--center .section-title{justify-content:center}
.section-head .en{display:block;color:var(--brand-2);font-size:.8rem;margin-top:8px;font-weight:600}
.section-head--center .en{margin-top:10px}
.section-head p.sub{margin-top:16px;color:var(--body);max-width:640px}
.section-head--center p.sub{margin-left:auto;margin-right:auto}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 30px;border-radius:var(--radius-sm);font-weight:600;font-size:.95rem;
  transition:transform .25s,box-shadow .25s,background .25s,color .25s;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(11,61,145,.22)}
.btn--primary:hover{background:#08327a;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,61,145,.32)}
.btn--ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn--ghost:hover{background:#fff;color:var(--brand);transform:translateY(-2px)}
.btn--line{background:#fff;color:var(--brand);border:1.5px solid var(--line)}
.btn--line:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn--lg{padding:15px 38px;font-size:1rem}

/* ---------- 6. 卡片 ---------- */
.card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .35s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card__media{height:200px;overflow:hidden;background:var(--bg-alt)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card__media img{transform:scale(1.06)}
.card__body{padding:26px}
.card__icon{
  width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(11,61,145,.08),rgba(6,182,212,.12));margin-bottom:18px;
}
.card__icon svg{width:28px;height:28px;stroke:var(--brand);stroke-width:1.8;fill:none}
.card h3{margin-bottom:10px}
.card p{font-size:.93rem;color:var(--body)}
.card__more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--brand);font-weight:600;font-size:.9rem}
.card__more:hover{color:var(--accent);gap:10px;transition:gap .25s,color .25s}

/* ---------- 7. 顶部导航 ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;transition:all .3s;
}
.header.scrolled{border-bottom-color:var(--line);box-shadow:0 2px 18px rgba(11,61,145,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink)}
.logo__mark{
  width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:1.1rem;font-family:var(--ff-en);
}
.logo__txt{display:flex;flex-direction:column;line-height:1.1}
.logo__txt b{font-size:1.12rem;letter-spacing:1px}
.logo__txt small{font-size:.62rem;color:var(--brand-2);font-family:var(--ff-en);letter-spacing:.22em;font-weight:600}
.logo__img{height:42px;width:auto;display:block;flex:none}
.footer .logo__img{filter:brightness(0) invert(1);opacity:.95}
.footer .logo__txt small{color:var(--accent)}
.menu{display:flex;align-items:center;gap:6px}
.menu a{
  position:relative;padding:10px 16px;font-weight:500;color:var(--ink);font-size:.96rem;border-radius:6px;
}
.menu a::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.menu a:hover,.menu a.active{color:var(--brand)}
.menu a:hover::after,.menu a.active::after{transform:scaleX(1)}
.nav__right{display:flex;align-items:center;gap:18px}
.nav__phone{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--brand);font-family:var(--ff-en)}
.nav__phone svg{width:18px;height:18px;stroke:var(--brand);stroke-width:1.8;fill:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 8. Hero / Banner ---------- */
.hero{position:relative;height:100vh;min-height:600px;max-height:880px;overflow:hidden;background:var(--dark)}
.banner{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s; background-size:cover;background-position:center}
.slide.active{opacity:1}
.slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,31,68,.92) 0%,rgba(10,31,68,.74) 42%,rgba(11,61,145,.45) 100%);
}
.hero__inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;max-width:760px}
.hero__tag{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;padding:7px 16px;border-radius:30px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-size:.82rem;font-family:var(--ff-en);letter-spacing:.08em;margin-bottom:26px}
.hero__tag span{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(6,182,212,.25)}
.hero h1{color:#fff;margin-bottom:22px}
.hero h1 .grad{color:#8be9ff}
.hero__sub{font-size:1.15rem;color:rgba(255,255,255,.85);margin-bottom:38px;max-width:600px}
.hero__btns{display:flex;gap:16px;flex-wrap:wrap}
.banner-dots{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.banner-dots button{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);transition:.3s}
.banner-dots button.active{background:#fff;width:28px;border-radius:6px}
.hero__scroll{position:absolute;bottom:30px;right:40px;z-index:3;color:rgba(255,255,255,.7);font-size:.75rem;font-family:var(--ff-en);letter-spacing:.15em;writing-mode:vertical-rl;display:flex;align-items:center;gap:10px}

/* 小型页内 hero（非首页） */
.pagehero{position:relative;padding:150px 0 70px;background:var(--dark);color:#fff;overflow:hidden}
.pagehero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(30,136,229,.35),transparent 50%),radial-gradient(circle at 10% 90%,rgba(6,182,212,.25),transparent 45%)}
.pagehero__grid{position:absolute;inset:0;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:48px 48px;mask-image:linear-gradient(180deg,#000,transparent)}
.pagehero__inner{position:relative;z-index:2}
.pagehero h1{color:#fff}
.pagehero .crumb{color:rgba(255,255,255,.65);font-size:.85rem;margin-bottom:14px;font-family:var(--ff-en);letter-spacing:.06em}
.pagehero .crumb a:hover{color:#fff}
.pagehero p{color:rgba(255,255,255,.82);margin-top:14px;max-width:620px}

/* ---------- 9. 数据统计 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:24px 12px}
.stat__num{font-family:var(--ff-en);font-weight:800;font-size:2.7rem;color:var(--brand);line-height:1}
.stat__num small{font-size:1.3rem;color:var(--accent);font-weight:700}
.stat__label{margin-top:10px;color:var(--body);font-size:.95rem}
.stats--bar{background:var(--dark);border-radius:18px;padding:38px 24px;box-shadow:var(--shadow-hover)}
.stats--bar .stat__num{color:#fff}
.stats--bar .stat__label{color:rgba(255,255,255,.72)}
.stats--bar .stat{border-right:1px solid rgba(255,255,255,.1)}
.stats--bar .stat:last-child{border-right:none}

/* ---------- 10. 业务卡 / 服务能力 ---------- */
.feat{display:flex;flex-direction:column;height:100%}
.feat__media{height:230px}
.feat h3{margin-bottom:12px}
.feat__list{margin:16px 0 0;padding:0;list-style:none}
.feat__list li{position:relative;padding-left:24px;margin-bottom:10px;color:var(--body);font-size:.92rem}
.feat__list li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:2px;background:var(--accent);border-radius:2px}

/* ---------- 11. 公司简介双栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split__text p{margin-bottom:16px}
.split__text .lead{color:var(--ink);font-weight:600;font-size:1.1rem}
.split__media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-hover)}
.split__media img{width:100%;height:420px;object-fit:cover}
.split__media::after{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.2);border-radius:16px;pointer-events:none}
.split__badge{position:absolute;left:-18px;bottom:24px;background:#fff;padding:18px 24px;border-radius:12px;box-shadow:var(--shadow-hover);display:flex;align-items:center;gap:14px}
.split__badge b{font-family:var(--ff-en);font-size:2rem;color:var(--brand);line-height:1}
.split__badge span{font-size:.82rem;color:var(--muted)}

/* ---------- 12. 新闻 ---------- */
.news-card{display:flex;flex-direction:column;height:100%}
.news-card__media{height:190px;position:relative;overflow:hidden;background:var(--bg-alt)}
.news-card__date{position:absolute;top:14px;left:14px;background:rgba(10,31,68,.92);color:#fff;padding:8px 12px;border-radius:8px;text-align:center;line-height:1.1;font-family:var(--ff-en)}
.news-card__date b{font-size:1.3rem;display:block}
.news-card__date small{font-size:.7rem;color:var(--accent)}
.news-card__body{padding:22px;flex:1;display:flex;flex-direction:column}
.news-card h3{font-size:1.05rem;margin-bottom:10px;line-height:1.4}
.news-card p{font-size:.9rem;color:var(--body);flex:1}
.news-card__more{margin-top:16px;color:var(--brand);font-weight:600;font-size:.88rem}

.news-list{display:flex;flex-direction:column;gap:0}
.news-row{display:grid;grid-template-columns:120px 1fr auto;gap:28px;align-items:center;padding:28px 0;border-bottom:1px solid var(--line);cursor:pointer;transition:padding .25s}
.news-row:hover{padding-left:10px}
.news-row:hover h3{color:var(--brand)}
.news-row__date{font-family:var(--ff-en);text-align:center;color:var(--brand)}
.news-row__date b{display:block;font-size:1.9rem;line-height:1}
.news-row__date small{color:var(--muted);font-size:.78rem}
.news-row h3{font-size:1.15rem;transition:color .25s}
.news-row p{font-size:.9rem;margin-top:6px}
.news-row__arrow{color:var(--muted);font-size:1.4rem}

.news-detail{display:none;animation:fadeUp .4s}
.news-detail.show{display:block}
.news-detail__back{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;margin-bottom:24px}
.news-detail__meta{color:var(--muted);font-size:.88rem;margin-bottom:8px;font-family:var(--ff-en)}
.news-detail__body{margin-top:24px;color:var(--body)}
.news-detail__body p{margin-bottom:16px}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ---------- 13. 服务领域 / 图标网格 ---------- */
.fields{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.field{text-align:center;padding:34px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.3s}
.field:hover{background:var(--brand);border-color:var(--brand);transform:translateY(-5px)}
.field:hover .field__icon svg{stroke:#fff}
.field:hover .field__name{color:#fff}
.field:hover .field__desc{color:rgba(255,255,255,.8)}
.field__icon{width:60px;height:60px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(11,61,145,.08),rgba(6,182,212,.12))}
.field__icon svg{width:30px;height:30px;stroke:var(--brand);stroke-width:1.7;fill:none;transition:stroke .3s}
.field__name{font-weight:700;color:var(--ink);margin-bottom:6px;transition:color .3s}
.field__desc{font-size:.82rem;color:var(--muted);transition:color .3s}

/* ---------- 14. 技术架构流程 ---------- */
.arch{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.arch__node{background:#fff;border:1px solid var(--line);border-radius:14px;padding:32px 24px;text-align:center;position:relative;z-index:2;box-shadow:var(--shadow)}
.arch__node:not(:last-child){margin-right:40px}
.arch__num{font-family:var(--ff-en);font-weight:800;font-size:.8rem;color:var(--accent);letter-spacing:.1em}
.arch__icon{width:64px;height:64px;margin:14px auto;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:flex;align-items:center;justify-content:center}
.arch__icon svg{width:32px;height:32px;stroke:#fff;stroke-width:1.7;fill:none}
.arch h3{margin:14px 0 8px}
.arch p{font-size:.88rem}
.arch__line{position:absolute;top:50%;left:0;right:0;height:2px;background:repeating-linear-gradient(90deg,var(--brand-2) 0 8px,transparent 8px 16px);z-index:1}

/* ---------- 15. 时间轴 ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--brand),var(--accent))}
.tl-item{position:relative;padding-bottom:34px}
.tl-item::before{content:"";position:absolute;left:-30px;top:4px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(11,61,145,.1)}
.tl-item__year{font-family:var(--ff-en);font-weight:800;color:var(--brand);font-size:1.1rem}
.tl-item p{margin-top:4px;font-size:.92rem}

/* ---------- 16. 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-cards{display:grid;gap:18px}
.contact-card{display:flex;align-items:center;gap:18px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.3s}
.contact-card:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateX(4px)}
.contact-card__icon{width:52px;height:52px;flex:none;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:flex;align-items:center;justify-content:center}
.contact-card__icon svg{width:24px;height:24px;stroke:#fff;stroke-width:1.8;fill:none}
.contact-card h4{margin-bottom:4px}
.contact-card p{font-family:var(--ff-en);font-weight:600;color:var(--brand);font-size:1.05rem}
.contact-card span{font-size:.82rem;color:var(--muted)}

.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px;box-shadow:var(--shadow)}
.form h3{margin-bottom:6px}
.form .sub{color:var(--muted);font-size:.9rem;margin-bottom:24px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:.88rem;color:var(--ink);font-weight:600;margin-bottom:8px}
.form-row input,.form-row textarea,.form-row select{
  width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:8px;background:var(--bg-alt);
  transition:border-color .25s,background .25s;color:var(--ink);
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:var(--brand);background:#fff}
.form-row textarea{resize:vertical;min-height:120px}
.form-row .err{color:#dc2626;font-size:.8rem;margin-top:6px;display:none}
.form-row.invalid .err{display:block}
.form-row.invalid input,.form-row.invalid textarea{border-color:#dc2626}
.form__success{display:none;background:linear-gradient(135deg,rgba(11,61,145,.06),rgba(6,182,212,.08));border:1px solid var(--line);border-radius:10px;padding:18px;margin-top:8px;color:var(--brand);font-weight:600}
.form__success.show{display:block}

/* ---------- 17. CTA 横幅 ---------- */
.cta{position:relative;background:var(--dark);color:#fff;border-radius:20px;padding:56px 56px;overflow:hidden;text-align:center}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 20%,rgba(30,136,229,.4),transparent 40%),radial-gradient(circle at 85% 80%,rgba(6,182,212,.32),transparent 40%)}
.cta__grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:40px 40px}
.cta__inner{position:relative;z-index:2}
.cta h2{color:#fff;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.82);max-width:560px;margin:0 auto 28px}

/* ---------- 18. 页脚 ---------- */
.footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer__brand .logo{color:#fff;margin-bottom:18px}
.footer__brand p{font-size:.9rem;line-height:1.8;max-width:320px}
.footer h4{color:#fff;margin-bottom:18px;font-size:1rem}
.footer li{margin-bottom:12px;font-size:.9rem}
.footer li a:hover{color:#fff;padding-left:4px}
.footer__contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:.88rem}
.footer__contact svg{width:17px;height:17px;stroke:var(--accent);stroke-width:1.8;fill:none;flex:none;margin-top:3px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;text-align:center;font-size:.82rem;color:rgba(255,255,255,.5)}
.footer__icp{margin-top:10px}
.footer__icp a{color:var(--accent);transition:color .25s}
.footer__icp a:hover{color:#fff}

/* ---------- 19. 动效 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}.reveal.d4{transition-delay:.4s}

/* ---------- 19.5 核心产品 ---------- */
.prod-filter{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:42px}
.prod-filter__btn{padding:9px 24px;border-radius:30px;border:1.5px solid var(--line);background:#fff;color:var(--body);font-weight:600;font-size:.9rem;transition:.25s}
.prod-filter__btn:hover{border-color:var(--brand-2);color:var(--brand)}
.prod-filter__btn.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(11,61,145,.22)}
.prod{transition:transform .3s,box-shadow .3s,border-color .3s}
.prod.hide{display:none}
.prod .card__icon{width:48px;height:48px;border-radius:12px;margin-bottom:14px}
.prod .card__icon svg{width:24px;height:24px}
.prod .card__media{height:172px;background:var(--bg-alt)}
.card__media--icon{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(11,61,145,.07),rgba(6,182,212,.1))}
.card__media--icon svg{width:50px;height:50px;stroke:var(--brand);stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
/* ---------- 荣誉墙 ---------- */
.honor-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.honor{display:block;background:var(--bg-alt);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;position:relative}
.honor:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.honor img{width:100%;height:300px;object-fit:contain;display:block;transition:transform .4s;padding:14px;box-sizing:border-box}
.honor:hover img{transform:scale(1.04)}
@media (max-width:992px){.honor-wall{grid-template-columns:repeat(3,1fr)}}
@media (max-width:768px){.honor-wall{grid-template-columns:repeat(2,1fr)}.honor img{height:240px}}
@media (max-width:480px){.honor-wall{gap:14px}.honor img{height:200px}}
.prod__tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:20px;font-size:.72rem;font-weight:700;letter-spacing:.03em;margin-bottom:12px}
.prod__tag--ai{background:rgba(6,182,212,.13);color:#0a8aa8}
.prod__tag--custom{background:rgba(11,61,145,.1);color:var(--brand)}
.prod__tag--smart{background:rgba(30,136,229,.13);color:#1565c0}
.prod h3{font-size:1.05rem;line-height:1.4;margin-bottom:10px}
.prod p{font-size:.88rem;color:var(--body)}
.prod .card__more{margin-top:14px}

/* ---------- 20. 响应式 ---------- */
@media (max-width:992px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .fields{grid-template-columns:repeat(3,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .arch__node:not(:last-child){margin-right:0}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .nav-toggle{display:flex}
  .menu{
    position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;
    padding:14px 24px;gap:0;box-shadow:0 18px 30px rgba(11,61,145,.1);transform:translateY(-130%);transition:transform .35s;border-top:1px solid var(--line);
  }
  .menu.open{transform:translateY(0)}
  .menu a{padding:14px 8px;border-bottom:1px solid var(--line)}
  .menu a::after{display:none}
  .nav__phone{display:none}
  .grid-2,.grid-3,.grid-4,.stats,.arch{grid-template-columns:1fr}
  .fields{grid-template-columns:repeat(2,1fr)}
  .hero{height:88vh;min-height:540px}
  .hero__scroll{display:none}
  .cta{padding:40px 24px}
  .footer__grid{grid-template-columns:1fr}
  .news-row{grid-template-columns:90px 1fr;gap:16px}
  .news-row__arrow{display:none}
  .stats--bar .stat{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:16px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .hero__btns{flex-direction:column}
  .hero__btns .btn{justify-content:center}
  .fields{grid-template-columns:1fr}
  .form{padding:24px}
}