/* ===== 鑫泰元官网 · 新版设计系统 =====
   墨绿炭黑 + 暖米白 + 哑光铜金 · 修缮质感 · 本地图片 */
:root{
  --ink:#0e1513;
  --ink-2:#16201d;
  --ink-3:#22302b;
  --cream:#f4f1ea;
  --cream-2:#efe9de;
  --sand:#e5ddcd;
  --gold:#b8934a;
  --gold-soft:#d6bc85;
  --text:#2b2f2c;
  --gray:#8a8f88;
  --line:rgba(184,147,74,.28);
  --shadow:0 30px 80px -30px rgba(14,21,19,.35);
  --serif:"Noto Serif SC",serif;
  --sans:"Noto Sans SC",-apple-system,"Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--cream);color:var(--text);line-height:1.75;overflow-x:hidden}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.wrap{max-width:1360px;margin:0 auto;padding:0 48px}
::selection{background:var(--gold);color:#fff}

/* ===== 顶部导航 ===== */
.nav{position:fixed;inset:0 0 auto 0;z-index:100;transition:.4s ease}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:88px}
.brand{display:flex;align-items:baseline;gap:14px;color:#fff}
.brand-name{font-family:var(--serif);font-size:26px;font-weight:900;letter-spacing:2px}
.brand-en{font-size:10px;letter-spacing:3px;color:rgba(255,255,255,.55);font-weight:300}
.nav-links{display:flex;gap:30px;list-style:none}
.nav-links a{color:rgba(255,255,255,.78);font-size:14.5px;letter-spacing:.5px;position:relative;padding:6px 0;transition:.3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--gold);transition:.35s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:22px}
.nav-tel{color:#fff;font-size:15px;letter-spacing:1px}
.nav-tel b{color:var(--gold-soft);font-weight:600}
.nav.scrolled{background:rgba(14,21,19,.92);backdrop-filter:blur(18px);box-shadow:0 10px 40px rgba(0,0,0,.3)}
.nav.scrolled .nav-inner{height:70px}
.hamburger{display:none;flex-direction:column;gap:6px;cursor:pointer;padding:8px}
.hamburger span{width:26px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.m-nav{position:fixed;top:88px;left:0;right:0;background:rgba(14,21,19,.98);z-index:99;padding:20px 26px 30px;display:none}
.m-nav.open{display:block}
.m-nav a{display:block;color:rgba(255,255,255,.85);padding:14px 0;font-size:16px;border-bottom:1px solid rgba(255,255,255,.07)}
.m-nav a.active{color:var(--gold-soft)}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:12px;padding:16px 34px;font-size:15px;letter-spacing:1px;border-radius:2px;transition:.35s;cursor:pointer;border:1px solid transparent}
.btn-gold{background:var(--gold);color:#0e1513;font-weight:600}
.btn-gold:hover{background:var(--gold-soft);transform:translateY(-3px);box-shadow:0 18px 40px -12px rgba(184,147,74,.55)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-soft);transform:translateY(-3px)}
.btn-dark{border-color:var(--line);color:var(--ink)}
.btn-dark:hover{border-color:var(--gold);color:var(--gold)}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('../images/hero-site.jpg') center 35%/cover no-repeat;transform:scale(1.06);animation:heroZoom 14s ease-out forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,17,15,.92) 0%,rgba(11,17,15,.55) 45%,rgba(11,17,15,.25) 100%),linear-gradient(0deg,rgba(11,17,15,.9) 0%,transparent 40%)}
.hero-body{position:relative;z-index:2;width:100%;padding:180px 0 90px}
.hero-tag{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:4px;color:var(--gold-soft);margin-bottom:30px}
.hero-tag::before{content:"";width:44px;height:1px;background:var(--gold)}
.hero h1{font-family:var(--serif);font-weight:900;font-size:clamp(52px,7.2vw,108px);line-height:1.12;letter-spacing:2px}
.hero h1 em{font-style:normal;color:transparent;-webkit-text-stroke:1px rgba(214,188,133,.85)}
.hero-sub{margin-top:30px;max-width:560px;font-size:17px;color:rgba(255,255,255,.78);font-weight:300;line-height:2}
.hero-actions{display:flex;gap:18px;margin-top:46px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:84px;border-top:1px solid rgba(255,255,255,.14)}
.stat{padding:30px 26px 6px 0}
.stat+.stat{border-left:1px solid rgba(255,255,255,.12);padding-left:30px}
.stat b{font-family:var(--serif);font-size:44px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-size:20px;color:var(--gold-soft);margin-left:2px}
.stat span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.55);letter-spacing:2px}

/* ===== 信任条 ===== */
.trust{background:var(--ink);color:#fff}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trust-item{padding:26px 0;display:flex;align-items:center;gap:18px}
.trust-item+.trust-item{border-left:1px solid rgba(255,255,255,.08);padding-left:40px}
.trust-item i{width:42px;height:42px;flex:0 0 42px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--gold-soft);font-size:16px;font-style:normal}
.trust-item p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.5}
.trust-item p b{display:block;color:#fff;font-size:15px;font-weight:600;margin-bottom:2px}

/* ===== 通用区块 ===== */
section{padding:120px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:70px}
.sec-eyebrow{font-size:12px;letter-spacing:5px;color:var(--gold);margin-bottom:16px;display:flex;align-items:center;gap:14px}
.sec-eyebrow::before{content:"";width:36px;height:1px;background:var(--gold)}
.sec-eyebrow.on-dark{color:var(--gold-soft)}
.sec-title{font-family:var(--serif);font-size:clamp(34px,4.2vw,54px);font-weight:900;line-height:1.25;color:var(--ink);letter-spacing:1px}
.sec-title.on-dark{color:#fff}
.sec-desc{max-width:460px;font-size:14.5px;color:var(--gray);font-weight:300}
.sec-desc.on-dark{color:rgba(255,255,255,.55)}

/* ===== 服务区 ===== */
.services{background:var(--cream)}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.svc-card{position:relative;background:#fff;padding:40px 34px;border:1px solid transparent;transition:.4s;overflow:hidden;cursor:default}
.svc-card::before{content:"";position:absolute;inset:0;border:1px solid var(--line);opacity:0;transition:.4s}
.svc-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.svc-card:hover::before{opacity:1}
.svc-card .no{font-family:var(--serif);font-size:13px;color:var(--gold);letter-spacing:3px}
.svc-card .ico{margin:26px 0 20px;width:52px;height:52px;color:var(--ink)}
.svc-card h3{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--ink);letter-spacing:1px}
.svc-card p{margin-top:12px;font-size:13.5px;color:var(--gray);line-height:1.9;font-weight:300}
.svc-card .tags{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
.svc-card .tags span{font-size:11px;color:var(--gold);border:1px solid var(--line);padding:3px 10px;letter-spacing:1px}
.svc-wide{grid-column:span 2;grid-row:span 2;background:var(--ink);color:#fff;padding:0;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden}
.svc-wide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;transition:.6s}
.svc-wide:hover img{transform:scale(1.05);opacity:.62}
.svc-wide .inner{position:relative;z-index:2;padding:40px 34px}
.svc-wide h3{font-size:30px;color:#fff}
.svc-wide p{color:rgba(255,255,255,.7)}
.svc-wide .no{color:var(--gold-soft)}

/* ===== 流程区 ===== */
.process{background:var(--ink);color:#fff}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid rgba(255,255,255,.14)}
.step{padding:44px 30px 0 0;position:relative}
.step+.step{border-left:1px solid rgba(255,255,255,.1);padding-left:34px}
.step .num{font-family:var(--serif);font-size:44px;font-weight:700;color:transparent;-webkit-text-stroke:1px rgba(184,147,74,.6)}
.step h4{margin-top:26px;font-size:18px;font-weight:600;color:#fff;letter-spacing:1px}
.step p{margin-top:10px;font-size:13px;color:rgba(255,255,255,.5);line-height:1.9;font-weight:300}
.steps-4{grid-template-columns:repeat(4,1fr)}

/* ===== 案例墙 ===== */
.cases{background:var(--cream)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:300px;gap:26px}
.case{position:relative;overflow:hidden;cursor:pointer}
.case.tall{grid-row:span 2}
.case img{width:100%;height:100%;object-fit:cover;transition:.7s}
.case:hover img{transform:scale(1.06)}
.case .mask{position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,17,15,.85),transparent 60%);opacity:.9;transition:.5s;display:flex;flex-direction:column;justify-content:flex-end;padding:30px}
.case:hover .mask{opacity:1;background:linear-gradient(0deg,rgba(11,17,15,.92),transparent 70%)}
.case .tag{font-size:11px;letter-spacing:2px;color:var(--gold-soft);margin-bottom:8px}
.case h4{color:#fff;font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:.5px}
.case .meta{margin-top:8px;font-size:12.5px;color:rgba(255,255,255,.6);display:flex;gap:16px}

/* ===== 质保大面板 ===== */
.warranty{background:linear-gradient(120deg,#101a17 0%,#182621 100%);color:#fff;position:relative;overflow:hidden}
.warranty::before{content:"XINTAIYUAN";position:absolute;right:-40px;top:50%;transform:translateY(-50%);font-size:180px;font-weight:900;letter-spacing:10px;color:rgba(255,255,255,.03);font-family:var(--serif)}
.warranty-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:90px;align-items:center}
.warranty h2{font-family:var(--serif);font-size:clamp(32px,3.6vw,48px);font-weight:900;line-height:1.3;letter-spacing:1px;color:#fff}
.warranty h2 em{font-style:normal;color:var(--gold-soft)}
.warranty p{margin-top:22px;font-size:15px;color:rgba(255,255,255,.65);font-weight:300;line-height:2;max-width:520px}
.warranty-points{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid rgba(255,255,255,.14)}
.wp{padding:34px 30px 0 0}
.wp:nth-child(odd){border-right:1px solid rgba(255,255,255,.12)}
.wp b{font-family:var(--serif);font-size:40px;font-weight:700;color:var(--gold-soft);font-variant-numeric:tabular-nums}
.wp span{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.7)}

/* ===== B端分包 ===== */
.subcon{background:var(--cream)}
.subcon-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.subcon-img{position:relative}
.subcon-img img{width:100%;height:560px;object-fit:cover}
.subcon-img::after{content:"";position:absolute;inset:18px -18px -18px 18px;border:1px solid var(--line);z-index:-1}
.subcon-feat{display:flex;gap:20px;align-items:flex-start;margin-top:26px}
.subcon-feat .n{font-family:var(--serif);color:var(--gold);font-size:15px;letter-spacing:2px;padding-top:4px}
.subcon-feat h4{font-size:17px;font-weight:600;color:var(--ink)}
.subcon-feat p{font-size:13.5px;color:var(--gray);margin-top:6px;font-weight:300}

/* ===== 联系区 ===== */
.contact{background:var(--ink);color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}
.contact h2{font-family:var(--serif);font-size:clamp(32px,3.6vw,48px);font-weight:900;line-height:1.3;color:#fff}
.contact-meta{margin-top:50px;display:grid;gap:26px}
.cm{display:flex;gap:18px;align-items:flex-start}
.cm .lb{font-size:11px;letter-spacing:3px;color:var(--gold-soft);flex:0 0 64px;padding-top:4px}
.cm p{font-size:15px;color:rgba(255,255,255,.85)}
.cm small{display:block;font-size:12px;color:rgba(255,255,255,.45);margin-top:2px}
.form{background:#fff;color:var(--text);padding:44px;box-shadow:var(--shadow)}
.form h3{font-family:var(--serif);font-size:24px;color:var(--ink);margin-bottom:6px}
.form .fs{font-size:12.5px;color:var(--gray);margin-bottom:26px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-size:12.5px;color:var(--text);margin:16px 0 7px;letter-spacing:.5px}
.form input,.form select,.form textarea{width:100%;padding:13px 15px;border:1px solid #ddd6c8;background:var(--cream);font-family:var(--sans);font-size:14px;color:var(--text);outline:none;transition:.3s;border-radius:0}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--gold);background:#fff}
.form textarea{resize:vertical;min-height:90px}
.form .btn-gold{width:100%;justify-content:center;margin-top:26px}
.form .note{margin-top:14px;font-size:11.5px;color:var(--gray);text-align:center}
.form .note b{color:var(--gold)}
.form-msg{margin-top:16px;padding:12px 16px;font-size:13.5px;display:none;border-radius:2px}
.form-msg.ok{display:block;background:#e8f2e8;color:#2f6b2f;border:1px solid #c6dfc6}
.form-msg.err{display:block;background:#fbe9e7;color:#a03d2e;border:1px solid #f0c8c2}

/* ===== 内页通用 ===== */
.page-hero{position:relative;background:var(--ink);color:#fff;padding:180px 0 90px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:url('../images/hero-site.jpg') center 30%/cover no-repeat;opacity:.22}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,17,15,.6),rgba(11,17,15,.85))}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-family:var(--serif);font-size:clamp(40px,5vw,64px);font-weight:900;letter-spacing:2px;margin-top:24px}
.page-hero p{margin-top:18px;max-width:620px;font-size:16px;color:rgba(255,255,255,.7);font-weight:300;line-height:2}
.breadcrumb{font-size:12px;letter-spacing:3px;color:var(--gold-soft);display:flex;align-items:center;gap:12px}
.breadcrumb::before{content:"";width:36px;height:1px;background:var(--gold)}

/* 服务详情（内页） */
.svc-detail{background:var(--cream)}
.svc-detail-alt{background:#fff}
.svc-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.svc-detail-grid.reverse .svc-detail-img{order:-1}
.svc-detail-img img{width:100%;height:520px;object-fit:cover}
.svc-detail h2{font-family:var(--serif);font-size:38px;font-weight:900;color:var(--ink);letter-spacing:1px;margin:16px 0 22px}
.svc-detail h2 span{display:block;font-size:13px;color:var(--gold);letter-spacing:4px;font-family:var(--sans);font-weight:500;margin-bottom:10px}
.svc-detail p{color:var(--gray);font-weight:300;line-height:2;margin-bottom:26px}
.svc-detail .feat{display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;margin-bottom:30px}
.svc-detail .feat li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text)}
.svc-detail .feat li::before{content:"—";color:var(--gold);font-weight:600}
.svc-detail .scope{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.svc-detail .scope span{font-size:11.5px;color:var(--gold);border:1px solid var(--line);padding:4px 12px;letter-spacing:1px}
.svc-detail .warranty-line{margin-top:30px;padding:18px 22px;background:var(--ink);color:#fff;font-size:13.5px;display:flex;gap:10px;align-items:center}
.svc-detail .warranty-line b{color:var(--gold-soft)}

/* 流程内页 */
.process-page{background:var(--ink);color:#fff}
.process-page .steps{grid-template-columns:repeat(6,1fr)}

/* 案例列表 */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.article-card{background:#fff;overflow:hidden;transition:.4s;cursor:pointer}
.article-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.article-card .cover{height:230px;overflow:hidden;position:relative}
.article-card .cover img{width:100%;height:100%;object-fit:cover;transition:.7s}
.article-card:hover .cover img{transform:scale(1.06)}
.article-card .cover .cat{position:absolute;left:16px;top:16px;background:var(--gold);color:#0e1513;font-size:11px;letter-spacing:2px;padding:4px 12px}
.article-card .body{padding:26px}
.article-card h3{font-family:var(--serif);font-size:19px;color:var(--ink);font-weight:700;line-height:1.5}
.article-card p{margin-top:10px;font-size:13.5px;color:var(--gray);font-weight:300;line-height:1.9}
.article-card .meta{margin-top:18px;padding-top:14px;border-top:1px solid #eee;display:flex;justify-content:space-between;font-size:12.5px;color:#9aa09a}
.article-card .meta a{color:var(--gold);font-weight:600}

/* 案例详情 */
.article-body{max-width:860px;margin:0 auto;padding:80px 0}
.article-info-box{background:var(--cream-2);border-left:4px solid var(--gold);padding:22px 26px;margin:34px 0;border-radius:0 6px 6px 0}
.article-info-box h4{color:var(--gold);font-size:14px;letter-spacing:2px;margin-bottom:12px}
.article-info-box p{font-size:14.5px;color:var(--text);margin:6px 0}
.article-body h2{font-family:var(--serif);font-size:26px;color:var(--ink);margin:46px 0 20px;font-weight:800}
.article-body p{font-size:16px;line-height:2.1;color:#3c4340;margin-bottom:18px;font-weight:300}
.article-cover-img{width:100%;max-height:520px;object-fit:cover}

/* 项目业绩 */
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.project-card{background:#fff;overflow:hidden;transition:.4s}
.project-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.project-card .cover{height:220px;overflow:hidden}
.project-card .cover img{width:100%;height:100%;object-fit:cover;transition:.7s}
.project-card:hover .cover img{transform:scale(1.06)}
.project-card .body{padding:26px}
.project-card .tag{font-size:11px;letter-spacing:2px;color:var(--gold)}
.project-card h3{font-family:var(--serif);font-size:19px;color:var(--ink);margin:10px 0}
.project-card p{font-size:13.5px;color:var(--gray);font-weight:300;line-height:1.9}
.project-card .meta{margin-top:16px;display:flex;flex-wrap:wrap;gap:10px;font-size:12px;color:#9aa09a}
.project-card .meta span{border:1px solid #e7e0d2;padding:3px 10px}

/* 资质证书墙 */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cert-item{background:#fff;padding:18px;box-shadow:0 8px 30px -18px rgba(14,21,19,.3);cursor:zoom-in;transition:.4s;border:1px solid #eee8da}
.cert-item:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.cert-item img{width:100%;height:280px;object-fit:contain;background:#fff}
.cert-item h4{margin-top:14px;font-size:14px;color:var(--ink);font-weight:600;text-align:center;letter-spacing:.5px}
.cert-item p{font-size:12px;color:var(--gray);text-align:center;margin-top:4px;font-weight:300}
.cert-note{margin-top:28px;font-size:12.5px;color:var(--gray);text-align:center;font-weight:300}

/* 工人证件筛选 */
.wf-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px}
.wf-btn{padding:10px 22px;font-size:13.5px;background:#fff;border:1px solid #e7e0d2;color:var(--text);cursor:pointer;transition:.3s;letter-spacing:1px;border-radius:2px}
.wf-btn:hover{border-color:var(--gold);color:var(--gold)}
.wf-btn.active{background:var(--gold);border-color:var(--gold);color:#0e1513}

/* 图片放大灯箱 */
.lightbox{position:fixed;inset:0;z-index:9998;background:rgba(8,12,11,.88);display:flex;align-items:center;justify-content:center;flex-direction:column;animation:fadeIn .3s ease}
.lightbox img{max-width:86vw;max-height:82vh;box-shadow:0 40px 120px -20px rgba(0,0,0,.7)}
.lightbox .lb-cap{margin-top:18px;color:rgba(255,255,255,.85);font-size:14px;letter-spacing:1px}
.lightbox .lb-close{position:absolute;top:26px;right:34px;color:#fff;font-size:34px;cursor:pointer;line-height:1;transition:.3s}
.lightbox .lb-close:hover{color:var(--gold-soft)}
.lightbox .lb-prev,.lightbox .lb-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.25);color:#fff;width:52px;height:52px;border-radius:50%;font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s}
.lightbox .lb-prev{left:30px}
.lightbox .lb-next{right:30px}
.lightbox .lb-prev:hover,.lightbox .lb-next:hover{background:rgba(184,147,74,.4);border-color:var(--gold)}

/* 页脚 */
footer{background:#0a100e;color:rgba(255,255,255,.55);padding:70px 0 40px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:50px;margin-bottom:60px}
.foot-grid h5{color:#fff;font-size:14px;letter-spacing:2px;margin-bottom:22px;font-weight:600}
.foot-grid li{margin-bottom:12px;font-size:13.5px}
.foot-brand p{margin-top:18px;font-size:13px;line-height:2;max-width:320px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:26px;display:flex;justify-content:space-between;font-size:12px;flex-wrap:wrap;gap:12px}

/* 动效 */
[data-rv]{opacity:0;transform:translateY(36px);transition:opacity .9s ease,transform .9s cubic-bezier(.22,1,.36,1)}
[data-rv].on{opacity:1;transform:none}

/* 响应式 */
@media(max-width:1080px){
  .wrap{padding:0 26px}
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-cta .btn{display:none}
  .hero-stats{grid-template-columns:repeat(4,1fr);margin-top:56px}
  .stat{padding:22px 14px 4px 0}
  .stat+.stat{padding-left:16px}
  .stat b{font-size:30px}
  .stat b i{font-size:15px}
  .stat span{font-size:11px;letter-spacing:1px}
  .svc-grid{grid-template-columns:1fr 1fr}
  .svc-wide{grid-column:span 2}
  .steps{grid-template-columns:1fr 1fr;gap:30px}
  .step+.step{border-left:0;padding-left:0}
  .case-grid{grid-template-columns:1fr 1fr}
  .article-grid,.project-grid{grid-template-columns:1fr 1fr}
  .cert-grid{grid-template-columns:1fr 1fr}
  .warranty-inner,.subcon-grid,.contact-grid,.svc-detail-grid{grid-template-columns:1fr;gap:50px}
  .svc-detail-grid.reverse .svc-detail-img{order:0}
  .trust-inner{grid-template-columns:1fr 1fr}
  .trust-item+.trust-item{border-left:0;padding-left:0}
  .foot-grid{grid-template-columns:1fr 1fr}
  section{padding:90px 0}
}
@media(max-width:640px){
  .trust-inner,.svc-grid,.steps,.case-grid,.article-grid,.project-grid,.cert-grid{grid-template-columns:1fr}
  .svc-wide{grid-column:auto;grid-row:auto}
  .brand{flex-shrink:0}
  .brand-name{white-space:nowrap;flex-shrink:0}
  .brand-en{display:none}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:44px}
  .stat{padding:18px 10px 4px 0}
  .stat+.stat{padding-left:14px}
  .stat b{font-size:26px}
  .stat b i{font-size:13px}
  .stat span{font-size:10.5px}
  .form-row{grid-template-columns:1fr}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero h1{font-size:42px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px}
  .foot-grid{grid-template-columns:1fr}
  .svc-detail-img img{height:340px}
}