/* ============ 设计变量：对齐品牌站（暖米白底 + 深墨绿 + 低饱和金铜点缀）============ */
:root{
  --cream:#f4efe5;        /* 全站暖米白/象牙底 */
  --panel:#fffdf8;        /* 卡片纯白暖 */
  --ink:#1f2b25;          /* 正文深墨绿黑 */
  --sub:#6a746c;          /* 次要文字 */
  --green-deep:#0f241c;   /* 深墨绿深色块（页脚） */
  --green:#1b4636;        /* 深墨绿主色 / 主按钮 */
  --green-2:#2c6b4f;      /* hover */
  --gold:#c2a25e;         /* 低饱和香槟金，点缀用 */
  --gold-soft:#e3d2a8;
  --line:#e6ddcd;         /* 浅米分隔线 */
  --serif:'Cormorant Garamond','Noto Serif SC','Songti SC',Georgia,serif;
  --sans:'Inter','PingFang SC','Noto Sans SC',Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
h1,h2,h3,h4{margin:0 0 .4em;font-family:var(--serif);font-weight:600;letter-spacing:.3px}

/* ============ 公告条 ============ */
.announce{background:var(--green-deep);color:var(--gold-soft);font-size:13px;text-align:center;padding:9px 40px;position:relative;letter-spacing:.5px}
.announce-close{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--gold-soft);font-size:20px;cursor:pointer;line-height:1}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,248,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:18px;height:68px}
.logo{display:flex;flex-direction:column;line-height:1.05}
.logo-en{font-family:var(--serif);font-size:25px;font-weight:700;letter-spacing:3px;color:var(--gold)}
.logo-sub{font-size:10.5px;letter-spacing:1.5px;color:var(--sub);text-transform:uppercase}
.nav-links{margin-left:auto;display:flex;gap:28px;font-size:14.5px;font-weight:500;align-items:center}
.nav-links a{position:relative;padding:4px 0;transition:.2s}
.nav-links a:hover{color:var(--green)}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--gold);transition:.25s}
.nav-links a:not(.nav-cta):hover::after{width:100%}
.nav-cta{padding:9px 20px;font-size:13.5px}
.nav-toggle{display:none;margin-left:auto;background:none;border:none;font-size:26px;line-height:1;cursor:pointer;color:var(--green)}

/* ============ 按钮 ============ */
.btn-gold{display:inline-block;background:linear-gradient(135deg,var(--gold),#b08f48);color:#2a2008;padding:12px 28px;border-radius:30px;font-weight:600;font-size:14.5px;transition:.2s;box-shadow:0 4px 14px rgba(194,162,94,.28)}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-gold.full{width:100%;text-align:center}
.btn-green{display:inline-block;background:var(--green);color:#f3ece0;padding:12px 28px;border-radius:30px;font-weight:600;font-size:14.5px;transition:.2s}
.btn-green:hover{background:var(--green-2)}
.btn-green.full{width:100%;text-align:center}
.btn-outline{display:inline-block;border:1px solid var(--gold);color:var(--green);padding:11px 26px;border-radius:30px;font-weight:600;font-size:14.5px;transition:.2s}
.btn-outline:hover{background:rgba(194,162,94,.12)}

/* ============ Hero（深墨绿首屏块，呼应品牌站首屏）============ */
.hero{position:relative;overflow:hidden;background:radial-gradient(120% 130% at 78% 18%,#1c4636 0%,var(--green-deep) 72%);color:#f3ece0;padding:88px 0 80px}
.hero-glow{position:absolute;right:-120px;top:-80px;width:520px;height:520px;background:radial-gradient(circle,rgba(194,162,94,.26),transparent 62%);pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1.25fr .9fr;gap:30px;align-items:center;position:relative;z-index:1}
.hero-eyebrow{font-size:12.5px;letter-spacing:3px;text-transform:uppercase;color:var(--gold);margin:0 0 16px}
.hero-eyebrow::before{content:"";display:inline-block;width:30px;height:1px;background:var(--gold);vertical-align:middle;margin-right:12px}
.hero h1{font-size:48px;line-height:1.15;color:#f7f1e6;margin:0 0 18px}
.hero-sub{font-size:17px;color:#d7cdbb;max-width:520px;margin:0 0 30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-actions .btn-outline{border-color:var(--gold-soft);color:var(--gold-soft)}
.hero-actions .btn-outline:hover{background:rgba(227,210,168,.12)}
.hero-stats{display:flex;gap:36px;margin-top:42px}
.hero-stats b{display:block;font-family:var(--serif);font-size:32px;color:var(--gold);line-height:1}
.hero-stats span{font-size:12.5px;color:#c3b9a6}
.hero-art{display:flex;justify-content:center;align-items:center}
.hero-art svg,.hero-art img{width:100%;max-width:330px;opacity:.9;filter:drop-shadow(0 8px 30px rgba(0,0,0,.35))}

/* ============ 通用版块 ============ */
.section{padding:78px 0}
.section.alt{background:var(--panel)}
.kicker{text-align:center;font-size:12px;letter-spacing:4px;text-transform:uppercase;color:var(--gold);margin:0 0 10px;font-weight:600}
.kicker::before{content:"";display:inline-block;width:26px;height:1px;background:var(--gold);vertical-align:middle;margin-right:12px}
.section-title{font-size:36px;color:var(--green);text-align:center}
.section-title.left{text-align:left}
.section-sub{text-align:center;color:var(--sub);margin:12px auto 38px;max-width:680px;font-size:15px}
.section-sub.left{margin-left:0;text-align:left}

/* ============ 工具栏 / 筛选 ============ */
.toolbar{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;margin-bottom:34px}
.search-wrap{flex:1;max-width:420px;min-width:240px}
#searchInput{width:100%;padding:12px 18px;border:1px solid var(--line);border-radius:30px;font-size:14px;background:#fff;font-family:inherit;color:var(--ink)}
#searchInput:focus{outline:none;border-color:var(--gold)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:8px 20px;border:1px solid var(--line);border-radius:30px;font-size:13px;cursor:pointer;background:#fff;transition:.2s;white-space:nowrap}
.chip:hover{border-color:var(--gold)}
.chip.active{background:var(--green);color:#f3ece0;border-color:var(--green)}

/* ============ 产品网格（浅米图区 + 金色「鑫」字 Logo 占位）============ */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.card:hover{box-shadow:0 10px 30px rgba(31,43,37,.1);transform:translateY(-3px);border-color:var(--gold)}
.card-img{position:relative;aspect-ratio:1/1;background:#efe6d6;display:flex;align-items:center;justify-content:center;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.logo-ph{width:88px;height:88px;border-radius:50%;border:2px solid var(--gold);color:var(--gold);font-family:var(--serif);font-size:42px;font-weight:700;display:flex;align-items:center;justify-content:center}
.card-tag{position:absolute;top:10px;left:10px;background:rgba(194,162,94,.95);color:#2a2008;font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px}
.card-body{padding:16px 17px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-title{font-size:15.5px;font-weight:600;line-height:1.35;font-family:var(--sans)}
.card-desc{font-size:12.5px;color:var(--sub);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:8px}
.card-price{font-weight:700;color:var(--ink);font-size:16px}
.card-price .cur{color:var(--gold);margin-right:1px}
.card-price small{color:var(--sub);font-weight:400;font-size:11px}
.card-actions{display:flex;gap:8px;margin-top:4px}
.mini-btn{padding:7px 0;flex:1;text-align:center;border-radius:8px;font-size:12.5px;font-weight:600;cursor:pointer;border:1px solid var(--green);color:var(--green);background:#fff;transition:.2s}
.mini-btn:hover{background:#eef4f0}
.mini-btn.solid{background:var(--green);color:#f3ece0;border-color:var(--green)}
.mini-btn.solid:hover{background:var(--green-2)}
.feed-status{text-align:center;color:var(--sub);margin-top:28px;font-size:14px}

/* ============ OEM 四宫格（大圆角容器 + 细线分隔，对齐品牌站「定制四步走」）============ */
.oem-grid{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--panel)}
.oem-card{background:none;padding:32px 28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:.25s}
.oem-card:nth-child(2n){border-right:none}
.oem-card:nth-child(n+3){border-bottom:none}
.oem-card:hover{background:#faf6ee}
.oem-num{font-family:var(--serif);font-size:36px;color:var(--gold);font-weight:700;display:block;margin-bottom:8px}
.oem-card h4{color:var(--green);font-family:var(--sans);font-weight:600;font-size:17px}
.oem-card p{font-size:13.5px;color:var(--sub);margin:0}

/* ============ 工厂数字（金色数字，对齐品牌故事）============ */
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;margin-bottom:22px}
.about-block{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px;text-align:center}
.about-block .num{font-family:var(--serif);font-size:44px;font-weight:700;color:var(--gold)}
.about-block p{font-size:13.5px;color:var(--sub);margin:6px 0 0}
.about-note{text-align:center;color:var(--sub);font-size:13.5px}

/* ============ 认证 ============ */
.cert-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cert{background:var(--panel);border:1px solid var(--gold);color:var(--green);padding:12px 22px;border-radius:30px;font-weight:600;font-size:14px;display:flex;align-items:center;gap:8px}
.cert::before{content:"✓";color:var(--gold);font-weight:700}

/* ============ 询盘 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-list{list-style:none;padding:0;margin:24px 0 0}
.contact-list li{display:flex;flex-direction:column;padding:12px 0;border-bottom:1px solid var(--line)}
.contact-list li::before{content:"";display:none}
.contact-list span{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--gold)}
.contact-list b{font-size:15px;color:var(--ink);font-weight:600}
.rfq{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 8px 30px rgba(31,43,37,.05)}
.form-row{display:flex;gap:12px}
.rfq input,.rfq textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;margin-bottom:14px;font-size:14px;font-family:inherit;background:#fff;color:var(--ink)}
.rfq input:focus,.rfq textarea:focus{outline:none;border-color:var(--gold)}
.rfq .form-row input{width:50%}
.rfq button{border:none;cursor:pointer;font-size:15px}
.rfq-msg{margin-top:14px;font-size:14px;text-align:center}
.rfq-msg.ok{color:var(--green)}
.rfq-msg.err{color:#c0504d}

/* ============ 页脚（深墨绿 + 金色字标）============ */
.site-footer{background:var(--green-deep);color:#cfc6b6;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:34px}
.foot-brand .logo-en.gold{color:var(--gold);font-size:27px}
.foot-sub{font-size:10.5px;letter-spacing:1.5px;text-transform:uppercase;color:#9bb0a4;margin:6px 0 12px}
.foot-desc{font-size:13px;color:#9bb0a4;max-width:280px}
.foot-col h5{color:var(--gold-soft);font-family:var(--sans);font-size:14px;font-weight:600;margin:0 0 14px;letter-spacing:.5px}
.foot-col a{display:block;color:#cfc6b6;font-size:13.5px;padding:5px 0;transition:.2s}
.foot-col a:hover{color:var(--gold)}
.foot-subscribe p{font-size:13px;color:#9bb0a4;margin:0 0 12px}
.sub-row{display:flex;gap:8px}
.sub-row input{flex:1;padding:10px 12px;border:1px solid #2c463a;border-radius:8px;background:#0c1d16;color:#f3ece0;font-size:13px;font-family:inherit}
.sub-row input:focus{outline:none;border-color:var(--gold)}
.sub-row .btn-green{padding:10px 16px;font-size:13px}
.sub-msg{font-size:12.5px;color:var(--gold-soft);margin-top:8px}
.footer-bottom{margin-top:42px;border-top:1px solid #1e3a2e;padding:18px 0;display:flex;justify-content:space-between;font-size:12.5px;color:#8aa093;flex-wrap:wrap;gap:8px}

/* ============ 浮动沟通 ============ */
.chat-fab{position:fixed;right:20px;bottom:20px;z-index:80;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.chat-toggle{width:58px;height:58px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--gold),#b08f48);color:#2a2008;font-size:24px;cursor:pointer;box-shadow:0 6px 18px rgba(194,162,94,.4);transition:.2s}
.chat-toggle:hover{transform:scale(1.05)}
.chat-menu{display:none;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:0 8px 24px rgba(31,43,37,.16);max-height:72vh;overflow-y:auto;min-width:170px}
.chat-menu.open{display:flex}
.chat-item{padding:9px 14px;border-radius:9px;font-size:14px;font-weight:500;white-space:nowrap;transition:.15s}
.chat-item:hover{background:#f3ede0}

/* ============ 弹窗 ============ */
.modal{display:none;position:fixed;inset:0;background:rgba(15,36,28,.6);z-index:90;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-box{background:#fff;border-radius:18px;max-width:720px;width:100%;max-height:88vh;overflow:auto;position:relative}
.modal-close{position:absolute;right:16px;top:12px;font-size:30px;cursor:pointer;color:var(--sub);z-index:2;line-height:1}
.modal-body{padding:26px}
.modal-img{width:100%;max-height:340px;border-radius:12px;background:#efe6d6;display:flex;align-items:center;justify-content:center;padding:18px}
.modal-price{font-size:22px;font-weight:700;color:var(--ink);margin:14px 0}
.modal-price .cur{color:var(--gold)}
.modal-desc{color:var(--sub);line-height:1.7;font-size:14px}
.modal-actions{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-art{order:-1}
  .hero-art svg,.hero-art img{max-width:230px}
  .hero-stats{justify-content:center}
  .hero-actions{justify-content:center}
  .contact-grid{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:rgba(255,253,248,.98);flex-direction:column;gap:0;padding:8px 22px 16px;border-bottom:1px solid var(--line);box-shadow:0 8px 20px rgba(31,43,37,.1)}
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links a:not(.nav-cta)::after{display:none}
  .nav-links .nav-cta{margin-top:14px;text-align:center}
  .hero h1{font-size:33px}
  .hero{padding:58px 0 52px}
  .section{padding:56px 0}
  .section-title{font-size:28px}
  .product-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .card-body{padding:11px;gap:4px}
  .card-title{font-size:13px}
  .card-desc{font-size:11px}
  .card-price{font-size:14px}
  .card-actions .mini-btn{padding:6px 0;font-size:11.5px}
  .oem-grid{grid-template-columns:1fr}
  .oem-card{border-right:none !important}
  .oem-card:nth-child(n+2){border-top:1px solid var(--line);border-bottom:none}
  .form-row{flex-direction:column}
  .rfq .form-row input{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ============ 语言切换器 ============ */
.lang-switch{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:30px;padding:7px 14px;font-size:13.5px;font-weight:500;cursor:pointer;color:var(--ink);font-family:inherit;transition:.2s}
.lang-btn:hover{border-color:var(--gold)}
.lang-caret{font-size:10px;color:var(--sub)}
.lang-panel{position:absolute;top:calc(100% + 8px);right:0;width:280px;max-height:70vh;overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 32px rgba(31,43,37,.16);padding:10px;z-index:60}
.lang-search{margin-bottom:8px}
.lang-search input{width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:8px;font-size:13px;font-family:inherit;color:var(--ink)}
.lang-search input:focus{outline:none;border-color:var(--gold)}
.lang-group-label{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--sub);margin:10px 4px 4px;font-weight:600}
.lang-opt{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:none;background:none;border-radius:9px;font-size:14px;cursor:pointer;color:var(--ink);font-family:inherit;text-align:left;transition:.15s}
.lang-opt:hover{background:#f3ede0}
.lang-opt .lf{font-size:18px;line-height:1}
.cn-sub{font-size:12px;color:var(--sub);font-family:var(--sans);font-weight:400;margin-left:6px}

/* ============ RTL（阿拉伯/波斯/希伯来/乌尔都 自动从右到左）============ */
html[dir="rtl"] body{direction:rtl}
html[dir="rtl"] .nav{flex-direction:row-reverse}
html[dir="rtl"] .nav-links{margin-left:0;margin-right:auto}
html[dir="rtl"] .hero-inner{flex-direction:row-reverse}
html[dir="rtl"] .hero-copy,html[dir="rtl"] .hero-sub,html[dir="rtl"] .section-sub{text-align:right}
html[dir="rtl"] .section-title.left,html[dir="rtl"] .section-sub.left{text-align:right}
html[dir="rtl"] .contact-grid{flex-direction:row-reverse}
html[dir="rtl"] .footer-grid{flex-direction:row-reverse}
html[dir="rtl"] .rfq .form-row{flex-direction:row-reverse}
html[dir="rtl"] .card-actions{flex-direction:row-reverse}
html[dir="rtl"] .sub-row{flex-direction:row-reverse}
html[dir="rtl"] .oem-grid,html[dir="rtl"] .about-grid,html[dir="rtl"] .product-grid,html[dir="rtl"] .cert-row{direction:rtl}
html[dir="rtl"] .lang-panel{right:auto;left:0}
html[dir="rtl"] .announce-close{right:auto;left:14px}
html[dir="rtl"] .card-tag{left:auto;right:10px}
html[dir="rtl"] .card-foot{flex-direction:row-reverse}
html[dir="rtl"] .modal-actions{flex-direction:row-reverse}
html[dir="rtl"] .footer-bottom{flex-direction:row-reverse}