/* ============================================================
   粤拓电器 YUETUO — B2B 外贸独立站全局样式
   深蓝 #0B2545 + 橙 #F77F00 国际化商务风格 · 全终端响应式
   ============================================================ */
:root{
  --blue-900:#081C33; --blue-800:#0B2545; --blue-700:#13315C;
  --blue-600:#1B4A8F; --blue-500:#2C6FD1; --blue-100:#E8F0FC; --blue-50:#F4F8FE;
  --orange:#F77F00; --orange-600:#E06E00; --orange-100:#FEEEDC;
  --ink:#1B2733; --ink-2:#4A5B6C; --ink-3:#7A8B9C;
  --line:#E3E9F0; --bg:#F5F7FA; --white:#FFFFFF;
  --green:#1FA55A; --red:#D93025; --amber:#B7791F;
  --shadow-sm:0 1px 3px rgba(11,37,69,.08);
  --shadow-md:0 6px 20px rgba(11,37,69,.10);
  --shadow-lg:0 16px 48px rgba(11,37,69,.16);
  --radius:10px; --radius-lg:16px;
  --font:'Segoe UI','Helvetica Neue',Arial,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --header-h:72px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);font-size:15px;line-height:1.65}
img{max-width:100%;display:block}
a{color:var(--blue-600);text-decoration:none;transition:color .2s}
a:hover{color:var(--orange)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:14px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
section{position:relative}
h1,h2,h3,h4{line-height:1.3;color:var(--blue-900);font-weight:700}
.section{padding:72px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:2px;font-weight:700;color:var(--orange);text-transform:uppercase;background:var(--orange-100);padding:5px 14px;border-radius:20px;margin-bottom:14px}
.section-head h2{font-size:32px;margin-bottom:12px}
.section-head p{color:var(--ink-2)}
/* 顶部工具条 */
.topbar{background:var(--blue-900);color:#C9D6E8;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar a{color:#C9D6E8}
.topbar .tb-left span{margin-right:18px}
.topbar .tb-left svg{vertical-align:-2px;margin-right:5px}
.lang-switch{display:flex;align-items:center;gap:2px}
.lang-switch button{color:#C9D6E8;font-size:12.5px;padding:4px 8px;border-radius:4px;border:1px solid transparent}
.lang-switch button:hover{color:#fff}
.lang-switch button.active{background:rgba(247,127,0,.2);color:var(--orange);border-color:rgba(247,127,0,.45)}
/* 主导航 */
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.site-header .container{display:flex;align-items:center;height:var(--header-h);gap:28px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo img{height:44px;width:auto}
.logo .logo-txt{font-size:20px;font-weight:800;color:var(--blue-800);letter-spacing:.5px}
.logo .logo-txt span{color:var(--orange)}
.logo .logo-sub{font-size:10.5px;color:var(--ink-3);letter-spacing:2.2px;text-transform:uppercase;display:block;margin-top:-2px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{padding:9px 15px;font-size:15px;font-weight:600;color:var(--ink);border-radius:8px}
.nav a:hover{color:var(--blue-700);background:var(--blue-50)}
.nav a.active{color:var(--blue-700);background:var(--blue-50)}
.nav .nav-cta{background:var(--orange);color:#fff;padding:10px 20px;border-radius:8px;font-weight:700}
.nav .nav-cta:hover{background:var(--orange-600);color:#fff}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:8px;border:1px solid var(--line)}
.nav-toggle svg{width:22px;height:22px;stroke:var(--blue-800)}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 26px;border-radius:8px;font-weight:700;font-size:14.5px;transition:all .2s;line-height:1.4}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(247,127,0,.3)}
.btn-primary:hover{background:var(--orange-600);color:#fff;transform:translateY(-1px)}
.btn-blue{background:var(--blue-700);color:#fff}
.btn-blue:hover{background:var(--blue-800);color:#fff;transform:translateY(-1px)}
.btn-outline{border:1.5px solid var(--blue-600);color:var(--blue-600);background:#fff}
.btn-outline:hover{background:var(--blue-50)}
.btn-light{background:#fff;color:var(--blue-800)}
.btn-light:hover{background:var(--blue-50)}
.btn-ghost-light{border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-block{width:100%}
.btn-sm{padding:8px 16px;font-size:13px}
/* Hero 轮播 */
.hero{position:relative;overflow:hidden;background:var(--blue-900)}
.hero-slider{position:relative;height:min(640px,86vh);min-height:460px}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;visibility:hidden}
.hero-slide.active{opacity:1;visibility:visible}
.hero-slide .slide-img{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.06);transition:transform 7s linear}
.hero-slide.active .slide-img{transform:scale(1)}
.hero-slide::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,28,51,.88) 0%,rgba(8,28,51,.55) 45%,rgba(8,28,51,.12) 100%)}
.hero-copy{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;max-width:1240px;margin:0 auto;padding:0 20px}
.hero-copy .hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(247,127,0,.18);border:1px solid rgba(247,127,0,.5);color:var(--orange);font-weight:700;font-size:13px;padding:7px 16px;border-radius:30px;width:fit-content;margin-bottom:20px;letter-spacing:1px}
.hero-copy h1{font-size:clamp(30px,4.4vw,56px);color:#fff;max-width:760px;line-height:1.18;margin-bottom:18px}
.hero-copy h1 em{font-style:normal;color:var(--orange)}
.hero-copy p{font-size:clamp(15px,1.6vw,19px);color:#D6E1F2;max-width:640px;margin-bottom:30px}
.hero-copy .hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:5}
.hero-dots button{width:10px;height:10px;border-radius:10px;background:rgba(255,255,255,.35);transition:all .3s}
.hero-dots button.active{width:30px;background:var(--orange)}
/* 快捷条 */
.quick-strip{background:var(--blue-800);color:#fff}
.quick-strip .container{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.08)}
.quick-item{display:flex;align-items:center;gap:14px;padding:20px 22px;background:var(--blue-800)}
.quick-item svg{width:34px;height:34px;stroke:var(--orange);flex-shrink:0}
.quick-item b{display:block;font-size:15px}
.quick-item span{font-size:12.5px;color:#AFC3DF}
/* 三大优势 */
.advantages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 30px;box-shadow:var(--shadow-sm);transition:all .25s;position:relative;overflow:hidden}
.adv-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--orange);opacity:0;transition:opacity .25s}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.adv-card:hover::before{opacity:1}
.adv-card .adv-ico{width:58px;height:58px;border-radius:14px;background:var(--blue-50);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.adv-card .adv-ico svg{width:30px;height:30px;stroke:var(--blue-600)}
.adv-card h3{font-size:19px;margin-bottom:10px}
.adv-card p{color:var(--ink-2);font-size:14px}
.adv-card .adv-stat{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);display:flex;gap:24px}
.adv-card .adv-stat b{font-size:24px;color:var(--orange)}
.adv-card .adv-stat span{display:block;font-size:12px;color:var(--ink-3)}
/* 分类入口 */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:all .25s;text-align:center;box-shadow:var(--shadow-sm)}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--blue-100)}
.cat-card .cat-img{height:150px;overflow:hidden;background:var(--blue-50);display:flex;align-items:center;justify-content:center}
.cat-card .cat-img img{height:100%;width:100%;object-fit:cover;transition:transform .4s}
.cat-card:hover .cat-img img{transform:scale(1.06)}
.cat-card .cat-body{padding:16px 12px}
.cat-card h3{font-size:15px;margin-bottom:4px}
.cat-card p{font-size:12px;color:var(--ink-3)}
.cat-card .cat-count{display:inline-block;margin-top:8px;font-size:11.5px;color:var(--blue-600);background:var(--blue-50);padding:3px 10px;border-radius:12px}
/* 产品卡片 */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:all .25s;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.prod-card .prod-img{position:relative;aspect-ratio:1/1;background:#fff;overflow:hidden}
.prod-card .prod-img img{width:100%;height:100%;object-fit:contain;transition:transform .4s}
.prod-card:hover .prod-img img{transform:scale(1.05)}
.prod-card .prod-tag{position:absolute;top:12px;left:12px;z-index:2}
.prod-card .tag-badge{display:inline-block;background:var(--orange);color:#fff;font-size:11px;font-weight:700;padding:4px 10px;border-radius:4px}
.prod-card .prod-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.prod-card .prod-model{font-size:12.5px;color:var(--ink-3);letter-spacing:.5px;margin-bottom:4px}
.prod-card h3{font-size:16px;margin-bottom:8px;line-height:1.4}
.prod-card .prod-spec{font-size:12.5px;color:var(--ink-2);display:flex;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.prod-card .prod-spec span{display:inline-flex;align-items:center;gap:4px;background:var(--bg);padding:3px 9px;border-radius:6px}
.prod-card .prod-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--line)}
.prod-price b{font-size:18px;color:var(--orange)}
.prod-price span{font-size:12px;color:var(--ink-3);display:block}
.prod-card .prod-actions{display:flex;gap:8px}
.prod-card .btn-sm{padding:7px 12px;font-size:12.5px}
/* 工厂实力 */
.factory{background:var(--blue-900);color:#fff}
.factory .section-head h2{color:#fff}
.factory .section-head p{color:#AFC3DF}
.factory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.fact-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:26px 22px;text-align:center;transition:all .25s}
.fact-item:hover{background:rgba(255,255,255,.1)}
.fact-item b{display:block;font-size:30px;color:var(--orange);font-weight:800}
.fact-item span{font-size:13.5px;color:#C9D6E8}
.factory-photos{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:44px}
.factory-photos img{width:100%;height:150px;object-fit:cover;border-radius:var(--radius);transition:transform .3s}
.factory-photos img:hover{transform:scale(1.04)}
/* 客户案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .25s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.case-card .case-img{height:190px;overflow:hidden;background:var(--blue-50)}
.case-card .case-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.case-card:hover .case-img img{transform:scale(1.05)}
.case-card .case-body{padding:20px 22px;display:flex;flex-direction:column;flex:1}
.case-card .case-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-3);margin-bottom:8px}
.case-card .case-meta .flag{font-size:14px}
.case-card h3{font-size:17px;margin-bottom:8px}
.case-card p{font-size:13.5px;color:var(--ink-2);flex:1}
.case-card .case-qty{margin-top:14px;display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px dashed var(--line);font-size:13px}
.case-card .case-qty b{color:var(--orange)}
/* 认证 */
.cert-strip{display:flex;justify-content:center;gap:40px;flex-wrap:wrap}
.cert-item{text-align:center}
.cert-item .cert-badge{width:74px;height:74px;border-radius:50%;background:#fff;border:2px solid var(--blue-100);display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-weight:800;color:var(--blue-700);font-size:14px}
.cert-item b{font-size:14.5px;color:var(--blue-800);display:block}
.cert-item span{font-size:12px;color:var(--ink-3)}
/* 询盘报价区 */
.quote-band{background:linear-gradient(120deg,var(--blue-800),var(--blue-600));color:#fff;overflow:hidden}
.quote-band .container{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.quote-band h2{color:#fff;font-size:30px;margin-bottom:14px}
.quote-band p{color:#D6E1F2;margin-bottom:10px;font-size:14.5px}
.quote-band .quote-points{margin-top:16px;display:grid;gap:10px}
.quote-band .quote-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#E4ECF8}
.quote-band .quote-points svg{width:18px;height:18px;stroke:var(--orange);flex-shrink:0;margin-top:2px}
.quote-form{background:#fff;border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-lg)}
.quote-form h3{font-size:18px;margin-bottom:18px;color:var(--blue-800)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.form-group label .req{color:var(--red)}
.form-control{width:100%;padding:10px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);outline:none;transition:border .2s, box-shadow .2s}
.form-control:focus{border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(44,111,209,.12)}
select.form-control{appearance:auto}
textarea.form-control{resize:vertical;min-height:88px}
.file-input{position:relative}
.file-input input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}
.file-input .file-box{display:flex;align-items:center;gap:10px;border:1.5px dashed var(--line);border-radius:8px;padding:11px 13px;color:var(--ink-3);font-size:13px;transition:all .2s}
.file-input .file-box:hover{border-color:var(--blue-500);color:var(--blue-600)}
.file-input .file-box svg{width:18px;height:18px;stroke:var(--blue-500)}
/* 页脚 */
.site-footer{background:var(--blue-900);color:#B9C9DE;font-size:14px}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:60px 0 44px}
.footer-main h4{color:#fff;font-size:15.5px;margin-bottom:18px}
.footer-main a{color:#B9C9DE;display:block;padding:4px 0}
.footer-main a:hover{color:var(--orange)}
.footer-about p{margin-top:14px;font-size:13px;color:#93A7C3;line-height:1.8}
.footer-contact li{display:flex;gap:10px;padding:5px 0;align-items:flex-start}
.footer-contact svg{width:17px;height:17px;stroke:var(--orange);flex-shrink:0;margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#7E93B1}
.footer-bottom a{color:#7E93B1}
/* 浮动 WhatsApp / 客服 */
.float-btns{position:fixed;right:20px;bottom:24px;z-index:800;display:flex;flex-direction:column;gap:12px}
.float-btns a,.float-btns button{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:transform .2s}
.float-btns a:hover,.float-btns button:hover{transform:scale(1.08)}
.wa-btn{background:#25D366;color:#fff}
.chat-btn{background:var(--blue-700);color:#fff}
.float-btns svg{width:26px;height:26px}
/* Cookie 弹窗 */
.cookie-bar{position:fixed;left:18px;right:18px;bottom:18px;z-index:1000;background:var(--blue-900);color:#E4ECF8;border-radius:14px;box-shadow:var(--shadow-lg);padding:20px 24px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;max-width:860px;margin:0 auto;font-size:13.5px}
.cookie-bar.hidden{display:none}
.cookie-bar .cb-btns{display:flex;gap:10px}
.cookie-bar .btn{padding:9px 18px;font-size:13px}
/* 页面头部 */
.page-hero{background:linear-gradient(115deg,var(--blue-900) 0%,var(--blue-700) 70%,var(--blue-600) 100%);color:#fff;padding:64px 0 60px;position:relative;overflow:hidden}
.page-hero::after{content:'';position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(247,127,0,.22),transparent 70%)}
.page-hero h1{color:#fff;font-size:36px;margin-bottom:10px;position:relative;z-index:1}
.page-hero p{color:#C9D6E8;max-width:640px;position:relative;z-index:1}
.breadcrumb{font-size:13px;color:#93A7C3;margin-top:14px;position:relative;z-index:1}
.breadcrumb a{color:#93A7C3}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb span{margin:0 7px}
/* 产品筛选 */
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:26px;box-shadow:var(--shadow-sm)}
.filter-group{margin-bottom:12px}
.filter-group:last-child{margin-bottom:0}
.filter-group .fg-label{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:1px;text-transform:uppercase;margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:7px 15px;border:1px solid var(--line);border-radius:30px;font-size:13px;color:var(--ink-2);background:#fff;transition:all .2s}
.chip:hover{border-color:var(--blue-500);color:var(--blue-600)}
.chip.active{background:var(--blue-700);border-color:var(--blue-700);color:#fff}
.search-box{display:flex;gap:10px;margin-bottom:16px}
.search-box input{flex:1;padding:11px 16px;border:1px solid var(--line);border-radius:8px}
.prod-count{font-size:13.5px;color:var(--ink-3);margin-bottom:16px}
.prod-count b{color:var(--blue-700)}
/* 产品详情 */
.pd-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:44px}
.pd-gallery .pd-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;margin-bottom:14px;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.pd-gallery .pd-main img{max-height:100%;max-width:100%;object-fit:contain}
.pd-thumbs{display:flex;gap:10px;flex-wrap:wrap}
.pd-thumbs button{width:72px;height:72px;border:2px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;padding:4px;transition:all .2s}
.pd-thumbs button.active{border-color:var(--orange)}
.pd-thumbs img{width:100%;height:100%;object-fit:contain}
.pd-info h1{font-size:27px;margin-bottom:12px}
.pd-info .pd-code{font-size:13px;color:var(--ink-3);margin-bottom:14px}
.pd-badges{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.pd-badge{font-size:12px;font-weight:700;padding:5px 12px;border-radius:6px;background:var(--blue-50);color:var(--blue-700)}
.pd-badge.cert{background:var(--green);color:#fff}
.pd-desc{color:var(--ink-2);font-size:14.5px;margin-bottom:22px;line-height:1.8}
.pd-price-box{background:var(--blue-50);border:1px solid var(--blue-100);border-radius:var(--radius);padding:18px 20px;margin-bottom:22px}
.pd-price-table{width:100%;border-collapse:collapse;font-size:13.5px}
.pd-price-table th{text-align:left;color:var(--ink-3);font-weight:600;padding:6px 8px;border-bottom:1px solid var(--blue-100)}
.pd-price-table td{padding:8px;border-bottom:1px dashed var(--blue-100)}
.pd-price-table td:first-child{color:var(--ink-2)}
.pd-price-table td b{color:var(--orange);font-size:16px}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.qty-ctl{display:inline-flex;align-items:center;border:1.5px solid var(--line);border-radius:8px;overflow:hidden}
.qty-ctl button{width:40px;height:44px;font-size:19px;color:var(--blue-700);background:#fff}
.qty-ctl button:hover{background:var(--blue-50)}
.qty-ctl input{width:64px;height:44px;border:none;text-align:center;font-size:15px;font-weight:700;color:var(--blue-800);outline:none}
.pd-specs{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 28px}
.pd-specs h2{font-size:20px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.pd-specs h2::before{content:'';width:4px;height:20px;background:var(--orange);border-radius:2px}
.spec-table{width:100%;border-collapse:collapse;font-size:14px}
.spec-table tr:nth-child(odd){background:var(--bg)}
.spec-table th{text-align:left;padding:10px 14px;color:var(--ink-2);font-weight:600;width:30%;border-bottom:1px solid var(--line)}
.spec-table td{padding:10px 14px;color:var(--ink);border-bottom:1px solid var(--line)}
/* 关于页 */
.timeline{position:relative;max-width:860px;margin:0 auto;padding-left:0}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:3px;background:var(--blue-100);transform:translateX(-50%)}
.tl-item{position:relative;width:50%;padding:0 44px 46px 0;text-align:right}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 46px 44px;text-align:left}
.tl-item::before{content:'';position:absolute;top:6px;right:-8px;width:16px;height:16px;border-radius:50%;background:var(--orange);border:3px solid #fff;box-shadow:0 0 0 3px var(--orange-100);z-index:2}
.tl-item:nth-child(even)::before{right:auto;left:-8px}
.tl-item .tl-year{display:inline-block;font-size:12.5px;font-weight:800;color:var(--blue-700);background:var(--blue-50);padding:4px 12px;border-radius:16px;margin-bottom:8px}
.tl-item h3{font-size:17px;margin-bottom:6px}
.tl-item p{font-size:13.5px;color:var(--ink-2)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.about-grid .ag-imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-grid .ag-imgs img{width:100%;height:210px;object-fit:cover;border-radius:var(--radius)}
.about-grid .ag-imgs img:first-child{grid-column:1/-1;height:250px}
.proc-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.proc-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;text-align:center;position:relative}
.proc-step .ps-num{width:34px;height:34px;border-radius:50%;background:var(--blue-700);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:14px}
.proc-step b{display:block;font-size:13.5px;margin-bottom:6px}
.proc-step span{font-size:12px;color:var(--ink-3)}
.proc-step::after{content:'›';position:absolute;right:-12px;top:38%;color:var(--orange);font-size:20px;z-index:2}
.proc-step:last-child::after{display:none}
.about-photos{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.about-photos img{width:100%;height:110px;object-fit:cover;border-radius:8px;transition:transform .3s}
.about-photos img:hover{transform:scale(1.05)}
/* 联系页 */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:start}
.contact-cards{display:grid;gap:16px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;gap:16px;box-shadow:var(--shadow-sm)}
.contact-card .cc-ico{width:48px;height:48px;border-radius:12px;background:var(--blue-50);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-card .cc-ico svg{width:24px;height:24px;stroke:var(--blue-600)}
.contact-card h3{font-size:15.5px;margin-bottom:4px}
.contact-card p{font-size:13.5px;color:var(--ink-2)}
.contact-card a{font-size:13.5px;font-weight:600}
.map-embed{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);height:340px}
.map-embed iframe{width:100%;height:100%;border:0}
/* 结算页 */
.checkout-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:start}
.cart-items{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;margin-bottom:20px}
.cart-item{display:grid;grid-template-columns:72px 1fr auto;gap:16px;padding:14px 0;border-bottom:1px dashed var(--line);align-items:center}
.cart-item:last-child{border-bottom:none}
.cart-item img{width:72px;height:72px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff}
.cart-item h4{font-size:14.5px;margin-bottom:4px}
.cart-item .ci-spec{font-size:12px;color:var(--ink-3)}
.cart-item .ci-price{text-align:right}
.cart-item .ci-price b{color:var(--orange);font-size:16px}
.cart-item .ci-price span{display:block;font-size:11.5px;color:var(--ink-3)}
.summary-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;position:sticky;top:calc(var(--header-h) + 20px);box-shadow:var(--shadow-sm)}
.summary-card h3{font-size:17px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.sum-row{display:flex;justify-content:space-between;padding:8px 0;font-size:14px;color:var(--ink-2)}
.sum-row.total{border-top:2px solid var(--blue-100);margin-top:10px;padding-top:14px;font-size:17px;font-weight:800;color:var(--blue-900)}
.sum-row.total b{color:var(--orange);font-size:24px}
.pay-methods{display:grid;gap:10px;margin:16px 0}
.pay-method{display:flex;gap:12px;align-items:flex-start;border:1.5px solid var(--line);border-radius:10px;padding:14px 16px;cursor:pointer;transition:all .2s}
.pay-method:hover{border-color:var(--blue-300)}
.pay-method.active{border-color:var(--orange);background:var(--orange-100)}
.pay-method input{margin-top:4px;accent-color:var(--orange)}
.pay-method .pm-body{flex:1}
.pay-method .pm-body b{font-size:14.5px;display:block}
.pay-method .pm-body span{font-size:12.5px;color:var(--ink-3)}
.pay-method .pm-logo{width:40px;height:40px;border-radius:8px;background:var(--blue-50);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:11px;color:var(--blue-700)}
.installment-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0}
.inst-tab{border:1.5px solid var(--line);border-radius:10px;padding:10px 8px;text-align:center;font-size:12.5px;color:var(--ink-2);transition:all .2s;line-height:1.4}
.inst-tab b{display:block;font-size:14.5px;color:var(--blue-800)}
.inst-tab.active{border-color:var(--orange);background:var(--orange-100);color:var(--orange-600)}
.inst-tab.active b{color:var(--orange-600)}
.currency-select{display:flex;align-items:center;gap:10px;margin:10px 0}
.currency-select select{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:#fff}
/* 订单成功 */
.success-page{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:80px 20px}
.success-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:52px 44px;max-width:620px;box-shadow:var(--shadow-md)}
.success-ico{width:84px;height:84px;border-radius:50%;background:#E7F6EE;display:flex;align-items:center;justify-content:center;margin:0 auto 22px}
.success-ico svg{width:42px;height:42px;stroke:var(--green)}
.success-card h1{font-size:26px;margin-bottom:10px}
.success-card .sc-note{font-size:13.5px;color:var(--ink-3);margin-top:14px;background:var(--bg);border-radius:8px;padding:12px 16px}
/* 后台 */
.admin-body{background:var(--bg)}
.admin-layout{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.admin-side{background:var(--blue-900);color:#C9D6E8;padding:22px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.admin-side .a-logo{display:flex;align-items:center;gap:10px;padding:6px 10px 20px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:16px}
.admin-side .a-logo img{height:34px;width:34px;border-radius:8px}
.admin-side .a-logo b{color:#fff;font-size:15px}
.admin-nav{display:grid;gap:4px}
.admin-nav button{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:9px;color:#C9D6E8;font-size:14px;text-align:left;width:100%;transition:all .2s}
.admin-nav button:hover{background:rgba(255,255,255,.08);color:#fff}
.admin-nav button.active{background:var(--orange);color:#fff;font-weight:700}
.admin-nav svg{width:19px;height:19px;flex-shrink:0}
.admin-nav .nav-badge{margin-left:auto;background:var(--red);color:#fff;font-size:11px;padding:1px 7px;border-radius:10px}
.admin-side .a-logout{margin-top:auto;display:flex;align-items:center;gap:10px;padding:11px 14px;color:#93A7C3;font-size:13.5px;border-top:1px solid rgba(255,255,255,.1)}
.admin-side .a-logout:hover{color:#fff}
.admin-main{padding:26px 30px 60px;min-width:0}
.admin-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.admin-head h1{font-size:24px}
.admin-head .ah-sub{color:var(--ink-3);font-size:13.5px}
.admin-panel{display:none}
.admin-panel.active{display:block}
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:26px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-sm)}
.stat-card .sc-label{font-size:12.5px;color:var(--ink-3);margin-bottom:8px}
.stat-card .sc-value{font-size:28px;font-weight:800;color:var(--blue-800)}
.stat-card .sc-value small{font-size:14px;color:var(--ink-3);font-weight:600}
.stat-card .sc-sub{font-size:12px;color:var(--ink-3);margin-top:4px}
.stat-card.orange .sc-value{color:var(--orange)}
.admin-table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:auto;box-shadow:var(--shadow-sm)}
.admin-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:760px}
.admin-table th{background:var(--blue-50);color:var(--blue-800);text-align:left;padding:12px 14px;font-weight:700;white-space:nowrap;border-bottom:1px solid var(--line)}
.admin-table td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.admin-table tr:hover td{background:#FAFCFE}
.admin-table .cell-img{width:52px;height:52px;object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff}
.status-pill{display:inline-block;font-size:11.5px;font-weight:700;padding:4px 11px;border-radius:14px}
.status-pill.new{background:var(--blue-100);color:var(--blue-700)}
.status-pill.processing{background:var(--orange-100);color:var(--orange-600)}
.status-pill.done{background:#E7F6EE;color:var(--green)}
.status-pill.cancel{background:#FDECEB;color:var(--red)}
.status-pill.pending{background:#FDF3E3;color:var(--amber)}
.admin-actions{display:flex;gap:8px;flex-wrap:wrap}
.admin-actions .btn{padding:7px 14px;font-size:12.5px}
.admin-toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.admin-toolbar .btn{background:#fff;border:1px solid var(--line);color:var(--blue-700);padding:9px 16px;font-size:13px}
.admin-toolbar .btn:hover{border-color:var(--blue-500);color:var(--blue-600)}
/* 弹窗 */
.modal-overlay{position:fixed;inset:0;background:rgba(8,28,51,.55);z-index:1200;display:none;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto;backdrop-filter:blur(2px)}
.modal-overlay.open{display:flex}
.modal{background:#fff;border-radius:var(--radius-lg);max-width:680px;width:100%;box-shadow:var(--shadow-lg);animation:modalIn .25s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line)}
.modal-head h3{font-size:18px}
.modal-close{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:20px}
.modal-close:hover{background:var(--bg);color:var(--ink)}
.modal-body{padding:24px}
.modal-foot{padding:18px 24px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
/* Toast */
.toast-wrap{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:1500;display:grid;gap:10px;width:min(420px,92vw)}
.toast{background:var(--blue-900);color:#fff;padding:14px 20px;border-radius:10px;box-shadow:var(--shadow-lg);font-size:14px;display:flex;gap:10px;align-items:center;animation:toastIn .3s ease}
.toast.success{background:var(--green)}
.toast.error{background:var(--red)}
.toast svg{width:18px;height:18px;stroke:#fff;flex-shrink:0}
@keyframes toastIn{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
/* 登录页 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(130deg,var(--blue-900),var(--blue-700));padding:20px;position:relative;overflow:hidden}
.login-wrap::before{content:'';position:absolute;right:-160px;top:-160px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(247,127,0,.25),transparent 70%)}
.login-card{background:#fff;border-radius:20px;padding:44px 40px;width:100%;max-width:420px;box-shadow:var(--shadow-lg);position:relative;z-index:2}
.login-card .lc-logo{display:flex;align-items:center;gap:12px;margin-bottom:26px;justify-content:center}
.login-card .lc-logo img{height:46px}
.login-card .lc-logo b{font-size:19px;color:var(--blue-800)}
.login-card h1{font-size:21px;text-align:center;margin-bottom:6px}
.login-card .lc-sub{text-align:center;color:var(--ink-3);font-size:13px;margin-bottom:26px}
.login-msg{font-size:13px;padding:10px 14px;border-radius:8px;margin-bottom:14px;display:none}
.login-msg.error{display:block;background:#FDECEB;color:var(--red)}
.login-msg.ok{display:block;background:#E7F6EE;color:var(--green)}
/* 分页 */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:34px}
.pagination button{min-width:38px;height:38px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink-2);font-size:13.5px;padding:0 10px}
.pagination button.active{background:var(--blue-700);color:#fff;border-color:var(--blue-700)}
.pagination button:hover:not(.active){border-color:var(--blue-500);color:var(--blue-600)}
/* 空状态 */
.empty-state{text-align:center;padding:70px 20px;color:var(--ink-3)}
.empty-state svg{width:56px;height:56px;stroke:var(--line);margin-bottom:14px}
.empty-state p{font-size:14.5px}
/* 移动端适配 */
@media (max-width:1080px){
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .proc-steps{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .proc-step:nth-child(3)::after{display:none}
  .footer-main{grid-template-columns:1fr 1fr}
  .stat-cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .section{padding:56px 0}
  .nav{position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);background:#fff;flex-direction:column;align-items:flex-start;padding:80px 26px 30px;box-shadow:var(--shadow-lg);transform:translateX(105%);transition:transform .3s;z-index:990;overflow-y:auto}
  .nav.open{transform:none}
  .nav a{width:100%;padding:13px 12px;font-size:16px}
  .nav .nav-cta{margin-top:10px}
  .nav-toggle{display:flex}
  .nav-mask{position:fixed;inset:0;background:rgba(8,28,51,.5);z-index:980;display:none}
  .nav-mask.open{display:block}
  .advantages-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .quick-strip .container{grid-template-columns:repeat(2,1fr)}
  .quote-band .container{grid-template-columns:1fr}
  .pd-wrap{grid-template-columns:1fr}
  .checkout-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .admin-layout{grid-template-columns:1fr}
  .admin-side{position:fixed;left:0;top:0;bottom:0;width:248px;transform:translateX(-105%);transition:transform .3s;z-index:990}
  .admin-side.open{transform:none}
  .admin-main{padding:20px 16px 50px}
  .topbar .tb-left span.hide-m{display:none}
  .hero-slider{height:72vh;min-height:420px}
  .case-grid{grid-template-columns:1fr}
  .factory-photos{grid-template-columns:repeat(2,1fr)}
  .about-photos{grid-template-columns:repeat(3,1fr)}
  .timeline::before{left:8px}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 36px 34px;text-align:left}
  .tl-item::before,.tl-item:nth-child(even)::before{right:auto;left:1px}
  .hero-copy h1{font-size:30px}
}
@media (max-width:560px){
  .prod-grid{grid-template-columns:1fr 1fr;gap:12px}
  .prod-card .prod-body{padding:12px}
  .prod-card h3{font-size:14px}
  .prod-card .prod-spec{gap:6px}
  .prod-card .prod-spec span{font-size:11px;padding:2px 6px}
  .prod-price b{font-size:15px}
  .form-row{grid-template-columns:1fr}
  .section-head h2{font-size:26px}
  .quick-strip .container{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .proc-steps{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1fr}
  .stat-cards{grid-template-columns:1fr}
  .modal{padding:0}
  .hero-copy .hero-actions .btn{width:100%}
  .summary-card{position:static}
}
/* 辅助 */
.text-center{text-align:center}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}
.muted{color:var(--ink-3)}
.hidden{display:none !important}
.nowrap{white-space:nowrap}
.flex{display:flex}.flex-between{display:flex;align-items:center;justify-content:space-between}
.gap-8{gap:8px}.gap-16{gap:16px}
a[href^="http"] {overflow-wrap:break-word}