/* 精锦精密机械官网 - 高级感主题 v2 */
:root{
  --navy:#0b2545; --navy2:#10315c; --navy3:#0a1e38;
  --primary:#0d5aa7; --primary-dark:#094a8c;
  --gold:#c0963f; --gold-dark:#a37c2c; --gold-soft:#faf5e8; --gold-line:#e8d9b5;
  --text:#232a33; --muted:#66727f; --line:#e6eaf0; --bg:#f6f8fb; --card:#ffffff;
  --imgbg:radial-gradient(130% 105% at 50% 0%,#ffffff 0%,#f2f5f9 58%,#e5eaf1 100%);
  --pagebg:
    radial-gradient(900px 320px at 12% 0%,rgba(13,90,167,.07),transparent 60%),
    radial-gradient(900px 320px at 88% 6%,rgba(192,150,63,.08),transparent 60%),
    linear-gradient(180deg,#f3f6fa 0%,#edf1f7 100%);
  --radius:14px; --shadow:0 12px 34px rgba(11,37,69,.09);
  --shadow-lg:0 24px 60px rgba(11,37,69,.16);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);font-size:16px;line-height:1.8;background:var(--pagebg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--gold-dark)}
.container{max-width:1220px;margin:0 auto;padding:0 24px}
::selection{background:var(--navy);color:#fff}

/* ---------- 顶栏 v4：标语/电话/邮箱/语言切换全部加大醒目 ---------- */
.topbar{background:var(--navy3);color:#d7e1f0;font-size:15px;letter-spacing:.5px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:48px;padding-top:6px;padding-bottom:6px;gap:16px}
.topbar a{color:#d7e1f0}.topbar a:hover{color:#fff}
.tb-left{font-weight:700;color:#fff;font-size:16px;letter-spacing:2px;white-space:nowrap}
.tb-star{color:var(--gold);margin-right:8px}
.topbar .tb-right{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.tb-tel{white-space:nowrap}
.tb-tel a{color:var(--gold);font-weight:800;font-size:18px;letter-spacing:1px}
.tb-tel a:hover{color:#fff}
.tb-mail{white-space:nowrap}
.tb-mail a{color:#fff;font-weight:600;font-size:15.5px}
.lang-sw{border:1.5px solid var(--gold);border-radius:22px;padding:5px 24px;font-size:15px;font-weight:700;color:#fff!important;background:rgba(192,150,63,.14);letter-spacing:1px}
.lang-sw:hover{border-color:var(--gold);background:var(--gold);color:#0a1e38!important}

/* ---------- 页头 ---------- */
.site-header{background:rgba(255,255,255,.97);backdrop-filter:blur(8px);box-shadow:0 2px 16px rgba(11,37,69,.07);position:sticky;top:0;z-index:100}
.header-in{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{display:flex;align-items:center;gap:13px}
.logo-img{width:56px;height:56px;object-fit:contain;flex:0 0 auto}
.logo-text b{display:block;font-size:22px;color:var(--navy);line-height:1.25;letter-spacing:2px;font-weight:800}
.logo-text span.logo-tag{display:block;font-size:14px;color:var(--navy);letter-spacing:2.5px;font-weight:700;margin-top:3px}
.main-nav{display:flex;gap:2px}
.main-nav a{padding:12px 18px;color:var(--text);font-size:17.5px;font-weight:600;border-radius:8px;position:relative;letter-spacing:1px}
.main-nav a:hover{color:var(--primary);background:#f0f5fb}
.main-nav a.active{color:var(--navy);font-weight:700}
.main-nav a.active::after{content:"";position:absolute;left:17px;right:17px;bottom:5px;height:3px;border-radius:2px;background:var(--gold)}
.hamburger{display:none;border:0;background:none;font-size:26px;cursor:pointer;color:var(--navy);padding:8px}

/* ---------- 按钮 ---------- */
.btn{display:inline-block;padding:14px 38px;border-radius:10px;font-size:16px;font-weight:700;transition:.25s;border:0;cursor:pointer;letter-spacing:1px}
.btn-accent{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:#fff;box-shadow:0 8px 22px rgba(192,150,63,.35)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(192,150,63,.45);color:#fff}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.btn-outline:hover{border-color:var(--navy)}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(1100px 480px at 85% -10%,rgba(192,150,63,.16),transparent 60%),linear-gradient(115deg,var(--navy3) 0%,var(--navy) 55%,#134a86 100%);color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 340px at 8% 110%,rgba(13,90,167,.35),transparent 60%);pointer-events:none}
.hero .container{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;padding:88px 24px 96px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--gold);font-size:14px;font-weight:700;letter-spacing:3px;margin-bottom:20px}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--gold);display:inline-block}
.hero .eyebrow{font-size:17px;letter-spacing:4px}
.eyebrow-lg{font-size:19px;letter-spacing:5px;font-weight:800}
.hero h1{font-size:46px;line-height:1.4;margin-bottom:20px;font-weight:800;letter-spacing:1px}
.hero h1 .hl{color:var(--gold)}
.hero p.sub{color:#c3d2e6;font-size:17.5px;margin-bottom:34px;max-width:540px;line-height:1.9}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{display:flex;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:14px;overflow:hidden;backdrop-filter:blur(4px)}
.hstat{flex:1;padding:18px 10px;text-align:center;border-right:1px solid rgba(255,255,255,.12)}
.hstat:last-child{border:0}
.hstat b{display:block;font-size:30px;color:#fff;font-weight:800;letter-spacing:1px}
.hstat b em{font-style:normal;color:var(--gold);font-size:22px}
.hstat span{font-size:13px;color:#a9bdd6;letter-spacing:1px}
.hero-visual{position:relative}
.hero-img{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.18);background:var(--imgbg)}
.hero-img img{width:100%;height:560px;object-fit:contain}
.hero-float{position:absolute;left:-28px;bottom:36px;background:#fff;color:var(--text);border-radius:14px;padding:18px 22px;box-shadow:var(--shadow-lg);display:flex;gap:14px;align-items:center;max-width:300px}
.hero-float .tick{width:46px;height:46px;border-radius:50%;background:var(--gold-soft);color:var(--gold-dark);font-size:24px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.hero-float b{display:block;font-size:15px;color:var(--navy)}
.hero-float span{font-size:13px;color:var(--muted)}

/* ---------- 通用区块 ---------- */
.section{padding:92px 0}
.section.alt{background:var(--bg)}
.sec-head{text-align:center;margin-bottom:52px;max-width:720px;margin-left:auto;margin-right:auto}
.sec-head h2{font-size:34px;color:var(--navy);margin:10px 0 14px;font-weight:800;letter-spacing:2px}
.sec-head p{color:var(--muted);font-size:16px}
.sec-head.center .eyebrow::after{content:"";width:34px;height:2px;background:var(--gold);display:inline-block}
.sec-more{text-align:center;margin-top:40px}

/* ---------- 优势条 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.adv-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:.3s;position:relative;overflow:hidden}
.adv-item:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-line)}
.adv-item::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold),transparent);opacity:0;transition:.3s}
.adv-item:hover::before{opacity:1}
.adv-ic{width:58px;height:58px;border-radius:16px;background:linear-gradient(135deg,var(--navy),var(--navy2));display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.adv-ic svg{width:28px;height:28px;stroke:var(--gold);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.adv-item h3{font-size:18px;color:var(--navy);margin-bottom:8px;letter-spacing:1px}
.adv-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 分类卡片 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.35s;display:block;color:var(--text);border:1px solid transparent}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--gold-line)}
.cat-card .im{height:190px;overflow:hidden;position:relative;background:var(--imgbg)}
.cat-card .im::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,37,69,.45));opacity:0;transition:.35s}
.cat-card:hover .im::after{opacity:1}
.cat-card .im img{width:100%;height:100%;object-fit:contain;transition:.5s}
.cat-card:hover .im img{transform:scale(1.07)}
.cat-card .tx{padding:22px}
.cat-card h3{font-size:18.5px;color:var(--navy);margin-bottom:6px;letter-spacing:.5px}
.cat-card p{font-size:13.5px;color:var(--muted);min-height:42px}
.cat-card .go{color:var(--gold-dark);font-size:14px;font-weight:700;letter-spacing:1px}

/* ---------- 产品卡片 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prod-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-line)}
.prod-card .im{aspect-ratio:4/3;background:var(--imgbg);overflow:hidden;display:flex;align-items:center;justify-content:center}
.prod-card .im img{width:100%;height:100%;object-fit:contain;transition:.45s}
.prod-card:hover .im img{transform:scale(1.06)}
.prod-card .tx{padding:18px 18px 20px;flex:1;display:flex;flex-direction:column}
.prod-card h3{font-size:15.5px;line-height:1.55;color:var(--text);margin-bottom:6px;font-weight:600}
.prod-card:hover h3{color:var(--primary)}
.prod-card .tagline{font-size:13px;color:var(--gold-dark);line-height:1.6;margin-bottom:4px}
.prod-card .en{font-size:12.5px;color:var(--muted);line-height:1.5}

/* ---------- 应用领域 ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ind-card{position:relative;border-radius:var(--radius);overflow:hidden;height:300px;display:block;box-shadow:var(--shadow);background:var(--imgbg)}
.ind-card img{width:100%;height:100%;object-fit:contain;transition:.5s}
.ind-card:hover img{transform:scale(1.08)}
.ind-card .ov{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,37,69,0) 30%,rgba(11,37,69,.82) 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:24px}
.ind-card h3{color:#fff;font-size:20px;letter-spacing:2px;margin-bottom:6px}
.ind-card p{color:#d4deeb;font-size:13.5px}
.ind-card .ln{color:var(--gold);font-size:13px;font-weight:700;margin-top:10px;letter-spacing:1px}

/* ---------- 关于 ---------- */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-wrap .im{position:relative}
.about-wrap .im img{border-radius:18px;box-shadow:var(--shadow-lg)}
.about-exp{position:absolute;right:-18px;bottom:-24px;background:var(--navy);color:#fff;border-radius:14px;padding:20px 26px;text-align:center;box-shadow:var(--shadow-lg)}
.about-exp b{display:block;font-size:32px;color:var(--gold);font-weight:800}
.about-exp span{font-size:13px;color:#b9c6da;letter-spacing:1px}
.about-wrap h2{font-size:32px;color:var(--navy);margin:12px 0 18px;font-weight:800;letter-spacing:2px}
.about-wrap p{color:var(--muted);margin-bottom:14px}
.about-points{margin:22px 0;display:grid;gap:12px}
.about-points div{display:flex;gap:12px;align-items:flex-start;font-size:15px}
.about-points i{color:var(--gold-dark);font-style:normal;font-weight:800;flex:0 0 auto}

/* ---------- 合作流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:.3s;position:relative}
.step:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.step .num{font-size:34px;font-weight:800;color:var(--gold);opacity:.85;letter-spacing:1px}
.step h3{font-size:16.5px;color:var(--navy);margin:10px 0 6px}
.step p{font-size:13.5px;color:var(--muted)}
.step:not(:last-child)::after{content:"›";position:absolute;right:-16px;top:50%;transform:translateY(-50%);color:var(--gold);font-size:26px;font-weight:700;z-index:2}

/* ---------- 新闻卡片 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.3s;display:block;color:var(--text)}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-5px);border-color:var(--gold-line)}
.news-card .date{font-size:13px;color:var(--gold-dark);font-weight:700;letter-spacing:2px}
.news-card h3{font-size:17px;margin:10px 0;line-height:1.6;font-weight:600}
.news-card:hover h3{color:var(--primary)}
.news-card p{font-size:14px;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{background:radial-gradient(800px 300px at 20% 0%,rgba(192,150,63,.18),transparent 60%),linear-gradient(115deg,var(--navy3),var(--navy2));color:#fff;padding:64px 0;position:relative;overflow:hidden}
.cta-band .container{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;position:relative}
.cta-band h2{font-size:30px;margin-bottom:10px;letter-spacing:1px}
.cta-band p{color:#c3d2e6}
.cta-tel{font-size:32px;font-weight:800;color:var(--gold);white-space:nowrap;letter-spacing:1px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy3);color:#a9bad4;padding:64px 0 0;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:44px}
.site-footer h4{color:#fff;font-size:17px;margin-bottom:18px;letter-spacing:1px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:10px}
.site-footer a{color:#a9bad4}.site-footer a:hover{color:var(--gold)}
.foot-contact li{display:flex;gap:8px}
.copyright{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:13px;color:#7e90ad}
.copyright a{color:#7e90ad}

/* ---------- 面包屑 + 内页头 ---------- */
.page-hero{background:radial-gradient(700px 260px at 80% 0%,rgba(192,150,63,.14),transparent 60%),linear-gradient(115deg,var(--navy3),var(--navy2));color:#fff;padding:56px 0}
.page-hero h1{font-size:34px;margin-bottom:8px;letter-spacing:2px}
.page-hero p{color:#c3d2e6}
.crumbs{font-size:13.5px;color:var(--muted);padding:18px 0}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--primary)}

/* ---------- 产品列表页 ---------- */
.shop-layout{display:grid;grid-template-columns:260px 1fr;gap:30px;align-items:start}
/* ⑩ 列表区背景去纯白：浅灰蓝渐变 + 微光，高级感（现为全站页面底色） */
.shop-sec{background:var(--pagebg)}
/* ⑨ 产品分类菜单整体美化：加粗放大、醒目但克制 */
.side-box{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-bottom:20px;box-shadow:var(--shadow)}
.side-box h3{background:linear-gradient(135deg,var(--navy3),var(--navy2));color:#fff;font-size:18px;font-weight:800;padding:16px 22px;letter-spacing:3px;position:relative}
.side-box h3::after{content:"";position:absolute;left:22px;bottom:0;width:46px;height:3px;border-radius:2px;background:var(--gold)}
.side-box ul{list-style:none}
.side-box li a{display:flex;align-items:center;gap:9px;padding:14px 22px;color:var(--text);font-size:16px;font-weight:600;border-bottom:1px solid #eef1f6;transition:.22s}
.side-box li a::before{content:"›";color:var(--gold);font-weight:800;font-size:17px;flex:0 0 auto}
.side-box li:last-child a{border-bottom:0}
.side-box li a:hover{background:#f2f6fb;color:var(--primary);padding-left:27px}
.side-box li a.active{background:var(--gold-soft);color:var(--gold-dark);font-weight:800;border-left:4px solid var(--gold)}
.side-box li.sub a{padding-left:38px;font-size:14.5px;color:var(--muted);font-weight:500}
.cat-sec{margin-bottom:48px}
.cat-sec-head{display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid var(--navy);padding-bottom:12px;margin-bottom:24px}
.cat-sec-head h2{font-size:23px;color:var(--navy);letter-spacing:1px}
.cat-sec-head a{color:var(--gold-dark);font-weight:700;font-size:14px}

/* ---------- 产品详情 ---------- */
.prod-detail{display:grid;grid-template-columns:460px 1fr;gap:48px;margin:8px 0 44px}
.prod-gallery{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--imgbg);align-self:start}
.prod-gallery img{width:100%;aspect-ratio:4/3;object-fit:contain}
.prod-info h1{font-size:28px;color:var(--navy);line-height:1.5;margin-bottom:6px;letter-spacing:.5px}
.prod-info .en-title{color:var(--muted);font-size:15px;margin-bottom:20px}
.prod-meta{background:var(--bg);border-radius:var(--radius);padding:18px 22px;margin-bottom:22px;font-size:14.5px}
.prod-meta div{margin-bottom:6px}.prod-meta span{color:var(--muted)}
.hl-box{background:linear-gradient(180deg,var(--gold-soft),#fff);border:1px solid var(--gold-line);border-radius:var(--radius);padding:24px 26px;margin-bottom:22px}
.hl-box h3{color:var(--navy);font-size:17px;margin-bottom:14px;letter-spacing:1px}
.hl-box h3::before{content:"";display:inline-block;width:4px;height:16px;background:var(--gold);border-radius:2px;margin-right:10px;vertical-align:-2px}
.hl-box ul{list-style:none;display:grid;gap:10px}
.hl-box li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.7}
.hl-box li i{color:var(--gold-dark);font-style:normal;font-weight:800;flex:0 0 auto}
.inquiry-box{border:1.5px dashed var(--gold);border-radius:var(--radius);padding:22px;background:#fffdf6}
.inquiry-box h3{color:var(--navy);margin-bottom:8px}
.inquiry-box .tel{font-size:26px;font-weight:800;color:var(--gold-dark)}
.prod-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px;margin-bottom:44px}
.prod-body h2.sec-t{font-size:21px;color:var(--navy);border-left:4px solid var(--gold);padding-left:14px;margin-bottom:20px;letter-spacing:1px}
.article-body{font-size:16px}
.article-body p{margin-bottom:14px}
.article-body img{border-radius:10px;margin:16px auto;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.article-body table{border-collapse:collapse;width:100%;margin:14px 0}
.article-body td,.article-body th{border:1px solid var(--line);padding:8px 12px;font-size:14px}

/* ---------- 新闻列表 ---------- */
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{display:grid;grid-template-columns:88px 1fr;gap:22px;padding:22px 4px;border-bottom:1px solid var(--line);transition:.25s}
.news-item:hover{background:#fafbfd}
.news-item:last-child{border:0}
.news-date{background:var(--bg);border-radius:10px;text-align:center;padding:12px 4px;height:fit-content}
.news-date b{display:block;font-size:23px;color:var(--primary);line-height:1.2}
.news-date span{font-size:12px;color:var(--muted)}
.news-item h3{font-size:18px;margin-bottom:6px;font-weight:600}
.news-item h3 a{color:var(--text)}.news-item h3 a:hover{color:var(--primary)}
.news-item p{font-size:14px;color:var(--muted)}
.pager{display:flex;gap:8px;justify-content:center;margin:40px 0;flex-wrap:wrap}
.pager a,.pager span{padding:10px 17px;border:1px solid var(--line);border-radius:8px;font-size:14px;color:var(--text);background:#fff}
.pager a:hover{border-color:var(--primary);color:var(--primary)}
.pager .cur{background:var(--navy);color:#fff;border-color:var(--navy);font-weight:700}

/* ---------- 新闻详情 ---------- */
.news-detail h1{font-size:29px;color:var(--navy);line-height:1.55;margin-bottom:12px}
.news-meta{color:var(--muted);font-size:14px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:26px}
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:36px 0}
.prevnext a{border:1px solid var(--line);border-radius:10px;padding:16px 20px;color:var(--text);font-size:14.5px}
.prevnext a:hover{border-color:var(--gold)}
.prevnext span{color:var(--muted);font-size:13px;display:block}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:40px}
.c-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.c-card h3{color:var(--navy);font-size:19px;margin-bottom:16px;letter-spacing:1px}
.c-card .big{font-size:18px;font-weight:700;color:var(--primary)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;margin-bottom:6px;color:var(--muted)}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:var(--font)}
.form-row input:focus,.form-row textarea:focus{border-color:var(--primary);outline:none}

/* ---------- 杂项 ---------- */
.backtop{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;background:var(--navy);color:#fff;border:0;font-size:20px;cursor:pointer;display:none;box-shadow:0 8px 20px rgba(0,0,0,.22);z-index:99}
.backtop:hover{background:var(--gold-dark)}

/* ---------- ⑦ 产品搜索框 ---------- */
.hero-search{display:flex;max-width:660px;margin:0 0 36px;background:#fff;border-radius:50px;padding:8px;box-shadow:0 14px 34px rgba(0,0,0,.28)}
.hero-search input{flex:1;min-width:0;border:0;outline:none;padding:16px 28px;font-size:17px;border-radius:50px;font-family:var(--font);color:var(--text);background:transparent}
.hero-search button{border:0;border-radius:50px;padding:16px 48px;background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:#fff;font-size:17px;font-weight:700;cursor:pointer;letter-spacing:3px;flex:0 0 auto}
.hero-search button:hover{filter:brightness(1.1)}
.page-search{display:flex;gap:12px;max-width:640px;margin:0 auto 26px}
.page-search input{flex:1;min-width:0;padding:14px 20px;border:1.5px solid var(--line);border-radius:10px;font-size:16px;font-family:var(--font);color:var(--text)}
.page-search input:focus{border-color:var(--primary);outline:none}
.search-meta{color:var(--muted);margin-bottom:20px;text-align:center;font-size:15px}
.search-none{text-align:center;color:var(--muted);padding:34px 10px;line-height:2}

/* ---------- ⑪ 产品图走马灯 ---------- */
.marquee-sec{background:var(--navy3);padding:36px 0 34px;overflow:hidden}
.mq-label{color:var(--gold);font-size:14px;font-weight:700;letter-spacing:4px;margin-bottom:20px;text-align:center}
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.mq-track{display:flex;width:max-content;animation:mq 45s linear infinite}
.marquee:hover .mq-track{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.mq-item{flex:0 0 220px;margin-right:20px;background:#fff;border-radius:12px;overflow:hidden;display:block;transition:.25s}
.mq-item:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(0,0,0,.3)}
.mq-item img{width:100%;height:150px;object-fit:contain;background:var(--imgbg)}
.mq-item span{display:block;padding:10px 14px;font-size:13.5px;color:var(--text);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:.25s}
.faq-item[open]{border-color:var(--gold-line);box-shadow:var(--shadow)}
.faq-item summary{padding:18px 22px;font-size:17px;font-weight:700;color:var(--navy);cursor:pointer;list-style:none;display:flex;gap:14px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"Q";flex:0 0 auto;width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:#fff;font-size:15px;font-weight:800;display:flex;align-items:center;justify-content:center}
.faq-item summary:hover{color:var(--primary)}
.faq-item .faq-a{padding:2px 24px 22px 66px;color:var(--text);line-height:1.95;font-size:15.5px}
.faq-item .faq-a p{margin-bottom:10px}
.faq-cta{text-align:center;margin-top:36px;padding:34px;background:var(--gold-soft);border:1px solid var(--gold-line);border-radius:16px}

/* 入场动画 */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}.mq-track{animation:none}}

/* ---------- v3 排版细构：清晰明了 ---------- */
/* 正文标题层级 */
.article-body h2{font-size:21px;color:var(--navy);margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--gold);letter-spacing:1px;line-height:1.5}
.article-body h3{font-size:18px;color:var(--navy);margin:24px 0 12px;line-height:1.5}
.article-body h3::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--gold);margin-right:10px;vertical-align:2px}
.article-body h4{font-size:16.5px;color:var(--navy);margin:20px 0 10px;line-height:1.5}
/* 正文列表 */
.article-body ul,.article-body ol{margin:0 0 16px 22px}
.article-body li{margin-bottom:8px;line-height:1.8}
/* 正文强调与引用 */
.article-body strong,.article-body b{color:var(--navy)}
.article-body blockquote{border-left:4px solid var(--gold-line);background:var(--gold-soft);padding:14px 20px;border-radius:0 10px 10px 0;margin:18px 0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:26px 0}
.article-body a{text-decoration:underline;text-underline-offset:3px}
/* 正文表格 */
.article-body th{background:var(--navy);color:#fff;font-weight:600;white-space:nowrap}
.article-body td,.article-body th{padding:10px 14px}
/* 内页正文呼吸感 */
.prod-body{line-height:1.9}
.news-detail .article-body{font-size:16.5px}
/* 面包屑与标题区衔接 */
.crumbs nav{letter-spacing:.3px}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .prod-grid,.cat-grid{grid-template-columns:repeat(3,1fr)}
  .news-grid,.case-grid,.ind-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .step:nth-child(3)::after{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero .container{grid-template-columns:1fr;padding:64px 24px}
  .hero-img img{height:380px}
  .hero h1{font-size:36px}
  .hero-float{left:12px}
  .shop-layout{grid-template-columns:1fr}
  .side-box.cat-nav h3{display:none}
  .side-box.cat-nav ul{display:flex;overflow-x:auto;gap:8px;padding:12px}
  .side-box.cat-nav li{flex:0 0 auto}
  .side-box.cat-nav li a{border:1px solid var(--line);border-radius:20px;padding:8px 16px;white-space:nowrap;border-bottom:1px solid var(--line);font-size:14px}
  .side-box.cat-nav li a::before{display:none}
  .side-box.cat-nav li.sub a{padding-left:16px}
  .prod-detail{grid-template-columns:1fr}
  .about-wrap,.contact-grid{grid-template-columns:1fr}
  .about-exp{right:12px}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .main-nav{display:none;position:absolute;top:80px;left:0;right:0;background:#fff;flex-direction:column;box-shadow:0 12px 24px rgba(0,0,0,.1);padding:8px 0}
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 24px}
  .hamburger{display:block}
  .topbar .tb-left{display:none}
  .topbar{font-size:13px}
  .topbar .tb-right{gap:14px}
  .tb-tel a{font-size:16px}
  .tb-mail{display:none}
  .lang-sw{padding:4px 18px;font-size:14px}
  .prod-grid,.cat-grid,.news-grid,.case-grid,.ind-grid{grid-template-columns:repeat(2,1fr)}
  .sec-head h2{font-size:27px}
  .cta-tel{font-size:24px}
  .foot-grid{grid-template-columns:1fr}
  .prevnext{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr}
  .news-date{display:none}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none!important}
  .hero-float{position:static;margin-top:16px;max-width:none}
  /* v3: 移动端正文与内页 */
  .prod-body{padding:22px 18px}
  .article-body{font-size:15.5px}
  .article-body table{display:block;overflow-x:auto}
  .article-body table td,.article-body table th{min-width:88px}
  .article-body h2{font-size:19px;margin:24px 0 12px}
  .page-hero{padding:42px 0}
  .page-hero h1{font-size:27px}
  .news-detail h1{font-size:23px;line-height:1.6}
  .prod-info h1{font-size:23px}
  .prod-detail{gap:28px}
  .inquiry-box .tel{font-size:22px}
}
@media(max-width:520px){
  .prod-grid,.cat-grid,.ind-grid{grid-template-columns:1fr}
  .adv-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .hero-stats{flex-wrap:wrap}
  .hstat{flex:1 1 40%}
  .steps{grid-template-columns:1fr}
}