/* ============================================================
   UKI Metal — Custom Metal Beauty Tools & Premium Metal Gifts
   全站样式表  |  设计基准：UKI 品牌玫红 + 深蓝黑高级感
   ============================================================ */
:root{
  --navy-950:#0A1420;
  --navy-900:#0E1B2E;
  --navy-800:#152842;
  --navy-700:#1F3A5C;
  --brand:#D42070;
  --brand-dark:#A81756;
  --brand-light:#FBEAF2;
  --ivory:#F8F6F2;
  --ivory-2:#EFECE6;
  --ink:#1C2733;
  --ink-2:#5A6B7B;
  --line:rgba(28,39,51,.1);
  --line-dark:rgba(255,255,255,.12);
  --radius:14px;
  --shadow:0 10px 30px rgba(14,27,46,.10);
  --serif:'Playfair Display',Georgia,'Times New Roman',serif;
  --sans:'Inter','Segoe UI','Helvetica Neue',Arial,sans-serif;
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:#fff;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 文字体系 ---------- */
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.h2{font-family:var(--serif);font-size:36px;font-weight:600;line-height:1.25;color:var(--navy-900)}
.sub{color:var(--ink-2);margin-top:10px;font-size:15px}
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center}
.sec-head.split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;text-align:left}
.view-all{white-space:nowrap;font-weight:600;font-size:14px;color:var(--navy-800);border-bottom:2px solid var(--brand);padding-bottom:3px;transition:color .2s}
.view-all:hover{color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:15px;font-weight:600;padding:14px 28px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:all .25s}
.btn-brand{background:linear-gradient(135deg,#E4478C,var(--brand-dark));color:#fff;border-color:var(--brand-dark)}
.btn-brand:hover{filter:brightness(1.07);transform:translateY(-1px)}
.btn-outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-outline-light:hover{border-color:#fff;color:#fff}
.btn-dark{background:var(--navy-900);color:#fff}
.btn-dark:hover{background:var(--navy-700);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--navy-800);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.arrow{transition:transform .25s}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--navy-950);color:rgba(255,255,255,.75);font-size:12.5px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a:hover{color:#fff}
.topbar .right{display:flex;gap:18px}

/* ---------- 导航 ---------- */
.header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s}
.header.scrolled{box-shadow:0 6px 24px rgba(14,27,46,.10)}
.nav{display:flex;align-items:center;gap:30px;height:72px}
.logo img{height:34px;width:auto}
.menu{display:flex;gap:24px;font-size:14.5px;font-weight:500;color:var(--navy-800)}
.menu a{padding:26px 0;position:relative}
.menu a::after{content:"";position:absolute;left:0;bottom:20px;width:0;height:2px;background:var(--brand);transition:width .25s}
.menu a:hover::after,.menu a.active::after{width:100%}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav .btn{padding:10px 22px;font-size:13.5px}
.burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.burger span{width:22px;height:2px;background:var(--navy-900);border-radius:2px;transition:.25s}
.mobile-menu{display:none}
.mobile-menu nav{display:flex;flex-direction:column;font-size:15px;font-weight:500;color:var(--navy-800)}
.mobile-menu a{padding:12px 0;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:none}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--navy-900);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('../images/hero.jpg') center right/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,20,32,.94) 0%,rgba(10,20,32,.80) 34%,rgba(10,20,32,.30) 64%,rgba(10,20,32,.08) 100%)}
.hero-inner{position:relative;z-index:2;padding:110px 0 96px;max-width:620px}
.hero .eyebrow{color:#F08CB8}
.hero h1{font-family:var(--serif);font-size:52px;line-height:1.15;font-weight:600}
.hero h1 em{font-style:normal;color:#F08CB8}
.hero p{margin-top:20px;font-size:17px;color:rgba(255,255,255,.82);max-width:500px}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-trust{display:flex;gap:32px;margin-top:52px;flex-wrap:wrap}
.trust-item{display:flex;align-items:flex-start;gap:12px;font-size:13px;color:rgba(255,255,255,.75);max-width:190px}
.trust-item svg{flex:none;color:#F08CB8;margin-top:2px}
.trust-item b{display:block;font-size:14px;color:#fff;margin-bottom:2px}

/* ---------- 产品线双卡 ---------- */
.lines{padding:88px 0;background:#fff}
.lines-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.line-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:340px;display:flex;align-items:flex-end;box-shadow:var(--shadow)}
.line-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.line-card:hover img{transform:scale(1.04)}
.line-card .overlay{position:absolute;inset:0}
.line-card.light .overlay{background:linear-gradient(180deg,rgba(248,246,242,0) 20%,rgba(248,246,242,.4) 55%,rgba(248,246,242,.97) 100%)}
.line-card.dark .overlay{background:linear-gradient(180deg,rgba(10,20,32,.05) 0%,rgba(10,20,32,.88) 100%)}
.line-card .body{position:relative;z-index:2;padding:32px 36px;width:100%}
.line-card h3{font-family:var(--serif);font-size:26px;font-weight:600}
.line-card.light h3{color:var(--navy-900)}
.line-card.dark h3{color:#fff}
.line-card p{font-size:14.5px;margin:8px 0 18px;max-width:430px}
.line-card.light p{color:var(--ink-2)}
.line-card.dark p{color:rgba(255,255,255,.78)}
.line-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14.5px}
.line-card.light .line-link{color:var(--navy-900)}
.line-card.dark .line-link{color:#F08CB8}

/* ---------- 产品网格 ---------- */
.products{padding:88px 0}
.products.alt{background:var(--ivory)}
.p-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;display:block}
.p-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(212,32,112,.45)}
.p-card .thumb{aspect-ratio:1/1;overflow:hidden;background:var(--ivory-2)}
.p-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.p-card:hover .thumb img{transform:scale(1.05)}
.p-card .info{padding:16px 16px 18px}
.p-card h4{font-size:15px;font-weight:600;color:var(--navy-900);line-height:1.35}
.p-card .tags{margin-top:6px;font-size:12px;color:var(--ink-2);line-height:1.5}
.p-card .moq{margin-top:8px;font-size:12px;font-weight:600;color:var(--brand)}
.products.dark .p-card{background:rgba(255,255,255,.04);border-color:var(--line-dark)}
.products.dark .p-card h4{color:#fff}
.products.dark .p-card .tags{color:rgba(255,255,255,.6)}
.products.dark .p-card .moq{color:#F08CB8}
.products.dark .p-card .thumb{background:var(--navy-800)}
.products.dark{background:var(--navy-900)}
.products.dark .h2{color:#fff}
.products.dark .sub{color:rgba(255,255,255,.65)}
.products.dark .eyebrow{color:#F08CB8}
.products.dark .view-all{color:#fff}
.products.dark .view-all:hover{color:#F08CB8}

/* ---------- OEM/ODM ---------- */
.oem{padding:88px 0;background:var(--ivory-2)}
.oem-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:center}
.oem-copy p{color:var(--ink-2);margin:16px 0 28px;font-size:15px}
.oem-caps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cap{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 14px;text-align:center;transition:transform .25s,border-color .25s}
.cap:hover{transform:translateY(-4px);border-color:rgba(212,32,112,.5)}
.cap svg{margin:0 auto 10px;color:var(--brand)}
.cap b{display:block;font-size:12.5px;font-weight:600;color:var(--navy-800);line-height:1.4}

/* ---------- 制造横幅 ---------- */
.mfg{position:relative;padding:110px 0;color:#fff;background:var(--navy-900)}
.mfg-bg{position:absolute;inset:0;background:url('../images/factory-workshop.jpg') center/cover no-repeat;opacity:.32}
.mfg .container{position:relative;z-index:2}
.mfg .eyebrow{color:#F08CB8}
.mfg .h2{color:#fff;max-width:620px}
.mfg .sub{color:rgba(255,255,255,.72);max-width:560px}
.mfg-chips{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:44px}
.chip{background:rgba(255,255,255,.07);border:1px solid var(--line-dark);border-radius:12px;padding:18px 12px;text-align:center;font-size:13.5px;font-weight:600;transition:background .25s,border-color .25s}
.chip:hover{background:rgba(212,32,112,.22);border-color:var(--brand)}

/* ---------- 质量流程 ---------- */
.quality{padding:88px 0;background:#fff}
.q-wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}
.q-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:40px}
.q-step{text-align:center;padding-top:8px}
.q-step .no{width:34px;height:34px;margin:0 auto 12px;border-radius:50%;background:linear-gradient(135deg,#E4478C,var(--brand-dark));color:#fff;font-weight:600;font-size:14px;display:flex;align-items:center;justify-content:center}
.q-step b{display:block;font-size:13px;color:var(--navy-900);line-height:1.4}
.q-step span{display:block;font-size:11.5px;color:var(--ink-2);margin-top:4px}
.q-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.q-img img{width:100%;height:380px;object-fit:cover}

/* ---------- Why / 数据 ---------- */
.why{background:linear-gradient(180deg,var(--navy-900),var(--navy-800));color:#fff;padding:88px 0}
.why .eyebrow{color:#F08CB8}
.why .h2{color:#fff}
.why .sub{color:rgba(255,255,255,.65)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:52px}
.stat{background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--radius);padding:34px 24px;text-align:center;transition:border-color .25s,transform .25s}
.stat:hover{border-color:var(--brand);transform:translateY(-4px)}
.stat .num{font-family:var(--serif);font-size:44px;font-weight:600;color:#F08CB8;line-height:1}
.stat .num small{font-size:24px}
.stat b{display:block;margin-top:12px;font-size:15px}
.stat span{display:block;font-size:12.5px;color:rgba(255,255,255,.6);margin-top:4px}

/* ---------- 评价 ---------- */
.testi{padding:88px 0;background:var(--ivory)}
.testi-wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.carousel{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:44px 46px;box-shadow:var(--shadow)}
.slide{display:none;animation:fade .5s ease}
.slide.on{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.slide .quote-mark{font-family:var(--serif);font-size:64px;line-height:.6;color:#F08CB8;margin-bottom:18px}
.slide p{font-size:15.5px;line-height:1.8}
.slide .who{display:flex;align-items:center;gap:14px;margin-top:26px}
.avatar{width:46px;height:46px;border-radius:50%;background:var(--navy-800);color:#F08CB8;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}
.who b{display:block;font-size:14.5px;color:var(--navy-900)}
.who span{font-size:12.5px;color:var(--ink-2)}
.car-nav{display:flex;align-items:center;gap:14px;margin-top:30px}
.car-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--navy-800);display:flex;align-items:center;justify-content:center;transition:all .2s}
.car-btn:hover{border-color:var(--brand);color:var(--brand)}
.dots{display:flex;gap:8px;margin-left:6px}
.dot{width:8px;height:8px;border-radius:50%;background:#D8D3C6;cursor:pointer;transition:.2s}
.dot.on{background:var(--brand);width:22px;border-radius:99px}
.testi-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.testi-img img{width:100%;height:420px;object-fit:cover}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(120deg,var(--navy-950),var(--navy-800));color:#fff;padding:96px 0}
.cta-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:center}
.cta h2{font-family:var(--serif);font-size:38px;font-weight:600;line-height:1.2}
.cta h2 em{font-style:normal;color:#F08CB8}
.cta p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15.5px}
.cta .btn{margin-top:32px}
.cta-list li{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line-dark);font-size:14.5px;color:rgba(255,255,255,.85)}
.cta-list li:last-child{border-bottom:none}
.cta-list svg{color:#F08CB8;flex:none}

/* ---------- 子页 banner ---------- */
.page-hero{position:relative;background:var(--navy-900);color:#fff;padding:96px 0 84px;overflow:hidden}
.page-hero .bg{position:absolute;inset:0;background:center/cover no-repeat;opacity:.28}
.page-hero .container{position:relative;z-index:2}
.page-hero .eyebrow{color:#F08CB8}
.page-hero h1{font-family:var(--serif);font-size:44px;font-weight:600;line-height:1.2}
.page-hero p{margin-top:14px;color:rgba(255,255,255,.75);max-width:640px;font-size:16px}
.crumbs{font-size:12.5px;color:rgba(255,255,255,.55);margin-bottom:18px}
.crumbs a:hover{color:#F08CB8}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.c-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.c-item svg{color:var(--brand);flex:none;margin-top:3px}
.c-item b{display:block;font-size:14px;color:var(--navy-900)}
.c-item span{font-size:14px;color:var(--ink-2)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px;box-shadow:var(--shadow)}
.form-card h3{font-family:var(--serif);font-size:24px;color:var(--navy-900);margin-bottom:6px}
.form-card .sub{margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--navy-900);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:var(--sans);font-size:14px;color:var(--ink);outline:none;transition:border-color .2s;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand)}
.field textarea{resize:vertical;min-height:100px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12px;color:var(--ink-2);margin-top:10px}
.map-card{margin-top:20px;border-radius:16px;overflow:hidden;border:1px solid var(--line)}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.about-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.about-img img{width:100%;height:100%;object-fit:cover}
.cert-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
.cert{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 16px;text-align:center}
.cert svg{margin:0 auto 10px;color:var(--brand)}
.cert b{display:block;font-size:13.5px;color:var(--navy-900)}
.cert span{font-size:12px;color:var(--ink-2)}
.tl{position:relative;margin-top:20px;padding-left:26px;border-left:2px solid var(--brand-light)}
.tl li{position:relative;padding:0 0 22px 14px}
.tl li::before{content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--brand)}
.tl b{display:block;color:var(--navy-900);font-size:14.5px}
.tl span{font-size:13.5px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:14.5px;color:var(--navy-900);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;color:var(--brand);flex:none}
.faq-item[open] summary::after{content:"−"}
.faq-item .a{padding:0 22px 18px;font-size:14px;color:var(--ink-2)}

/* ---------- 询盘弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal.open{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(10,20,32,.62)}
.modal-box{position:relative;z-index:2;background:#fff;border-radius:16px;max-width:520px;width:100%;padding:40px;max-height:90vh;overflow:auto}
.modal-box h3{font-family:var(--serif);font-size:24px;color:var(--navy-900)}
.modal-close{position:absolute;top:14px;right:16px;background:none;border:none;font-size:24px;color:var(--ink-2);cursor:pointer;line-height:1}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy-950);color:rgba(255,255,255,.72);font-size:14px}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px}
.footer h5{color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:18px}
.footer li{margin-bottom:10px}
.footer a:hover{color:#F08CB8}
.footer .brand p{margin-top:16px;font-size:13.5px;max-width:300px}
.footer .brand img{height:30px;width:auto}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{width:36px;height:36px;border-radius:50%;border:1px solid var(--line-dark);display:flex;align-items:center;justify-content:center;transition:all .2s}
.socials a:hover{border-color:var(--brand);color:#F08CB8}
.footer-bottom{border-top:1px solid var(--line-dark);padding:20px 0;display:flex;justify-content:space-between;gap:12px;font-size:12.5px;color:rgba(255,255,255,.45)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 语言切换器 ---------- */
.langs{display:flex;gap:12px;align-items:center}
.langs a{opacity:.65;transition:opacity .2s}
.langs a:hover{opacity:1}
.langs a.on{opacity:1;color:#fff;font-weight:600}
.lang-switch{position:relative;margin-left:auto}
.lang-switch select{appearance:none;border:1px solid var(--line);border-radius:99px;padding:8px 30px 8px 14px;font-family:var(--sans);font-size:13px;font-weight:500;color:var(--navy-800);background:#fff;cursor:pointer;outline:none}
.lang-switch select:hover{border-color:var(--brand);color:var(--brand)}
.lang-switch::after{content:"";position:absolute;right:13px;top:50%;width:6px;height:6px;border-right:1.5px solid var(--ink-2);border-bottom:1.5px solid var(--ink-2);transform:translateY(-70%) rotate(45deg);pointer-events:none}

/* ---------- 博客 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(212,32,112,.45)}
.post-card .cover{aspect-ratio:16/10;overflow:hidden;background:var(--ivory-2)}
.post-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.post-card:hover .cover img{transform:scale(1.05)}
.post-card .pbody{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.post-card .cat{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.post-card h3{font-size:17.5px;font-weight:600;color:var(--navy-900);line-height:1.4}
.post-card p{font-size:14px;color:var(--ink-2);margin-top:10px;flex:1}
.post-card .meta{font-size:12.5px;color:var(--ink-2);margin-top:16px;display:flex;gap:12px;align-items:center}
.post-card .meta .dotsep{width:3px;height:3px;border-radius:50%;background:#C9C4B8}
.article{max-width:760px;margin:0 auto}
.article h1{font-family:var(--serif);font-size:40px;line-height:1.22;font-weight:600;color:var(--navy-900)}
.article .ameta{display:flex;gap:14px;align-items:center;font-size:13px;color:var(--ink-2);margin:18px 0 26px;flex-wrap:wrap}
.article .lead{font-size:17.5px;color:var(--ink-2);line-height:1.8;padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:30px}
.article h2{font-family:var(--serif);font-size:25px;font-weight:600;color:var(--navy-900);margin:38px 0 12px}
.article h3{font-size:17px;font-weight:600;color:var(--navy-900);margin:26px 0 8px}
.article p{margin-bottom:14px;font-size:16px;line-height:1.8}
.article ul,.article ol{padding-left:24px;margin-bottom:16px}
.article li{margin-bottom:8px;font-size:16px;line-height:1.75}
.article img{border-radius:var(--radius);margin:22px 0}
.article .tip{background:var(--brand-light);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;padding:18px 22px;margin:24px 0;font-size:15px}
.article table{margin:20px 0}
.article table th{background:var(--navy-900);color:#fff}
.article table td,.article table th{padding:11px 14px;font-size:14px;text-align:left;border-top:1px solid var(--line)}
.article table{border:1px solid var(--line);border-radius:10px;overflow:hidden;width:100%;border-collapse:collapse}
.toc{background:var(--ivory);border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin:26px 0}
.toc b{display:block;font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin-bottom:10px}
.toc a{display:block;font-size:14.5px;padding:5px 0;color:var(--navy-800)}
.toc a:hover{color:var(--brand)}
.post-cta{background:linear-gradient(120deg,var(--navy-950),var(--navy-800));color:#fff;border-radius:var(--radius);padding:32px 34px;margin:36px 0;display:flex;justify-content:space-between;align-items:center;gap:22px;flex-wrap:wrap}
.post-cta b{font-family:var(--serif);font-size:21px;font-weight:600;display:block}
.post-cta span{font-size:14px;color:rgba(255,255,255,.7)}

/* ---------- RTL（阿拉伯语） ---------- */
html[dir="rtl"] body{direction:rtl}
html[dir="rtl"] .hero-bg::after{background:linear-gradient(270deg,rgba(10,20,32,.94) 0%,rgba(10,20,32,.80) 34%,rgba(10,20,32,.30) 64%,rgba(10,20,32,.08) 100%)}
html[dir="rtl"] .menu a::after{left:auto;right:0}
html[dir="rtl"] .line-card.light .overlay{background:linear-gradient(180deg,rgba(248,246,242,0) 20%,rgba(248,246,242,.4) 55%,rgba(248,246,242,.97) 100%)}
html[dir="rtl"] .tl{padding-left:0;padding-right:26px;border-left:none;border-right:2px solid var(--brand-light)}
html[dir="rtl"] .tl li{padding:0 14px 22px 0}
html[dir="rtl"] .tl li::before{left:auto;right:-33px}
html[dir="rtl"] .lang-switch{margin-left:0;margin-right:auto}
html[dir="rtl"] .lang-switch select{padding:8px 14px 8px 30px}
html[dir="rtl"] .lang-switch::after{right:auto;left:13px}
html[dir="rtl"] .article .tip{border-left:none;border-right:4px solid var(--brand);border-radius:12px 0 0 12px}
html[dir="rtl"] .crumbs a,html[dir="rtl"] .view-all{direction:rtl}
html[dir="rtl"] .nav-cta{margin-left:0;margin-right:auto}

/* ---------- 多语言字体栈 ---------- */
html[lang="ja"] body,html[lang="ja"] .h2,html[lang="ja"] h1,html[lang="ja"] .hero h1,html[lang="ja"] .page-hero h1{font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic",Meiryo,sans-serif}
html[lang="ko"] body,html[lang="ko"] .h2,html[lang="ko"] h1,html[lang="ko"] .hero h1,html[lang="ko"] .page-hero h1{font-family:"Noto Sans KR","Malgun Gothic","Apple SD Gothic Neo",sans-serif}
html[lang="ar"] body,html[lang="ar"] .h2,html[lang="ar"] h1,html[lang="ar"] .hero h1,html[lang="ar"] .page-hero h1{font-family:"Cairo","Noto Kufi Arabic",Tahoma,"Segoe UI",sans-serif}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .menu{display:none}
  .burger{display:flex}
  .nav .btn{display:none}
  .p-grid{grid-template-columns:repeat(3,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .mfg-chips{grid-template-columns:repeat(3,1fr)}
  .oem-grid,.q-wrap,.testi-wrap,.cta-grid,.contact-grid,.about-grid{grid-template-columns:1fr;gap:36px}
  .footer-main{grid-template-columns:1fr 1fr}
  .hero h1,.page-hero h1{font-size:40px}
  .q-img img{height:300px}
}
@media(max-width:720px){
  .topbar .right{display:none}
  .hero-inner{padding:72px 0 64px}
  .hero h1{font-size:32px}
  .page-hero{padding:72px 0 60px}
  .page-hero h1{font-size:31px}
  .hero-trust{gap:18px}
  .lines-grid{grid-template-columns:1fr}
  .p-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .post-grid{grid-template-columns:1fr}
  .article h1{font-size:29px}
  .article h2{font-size:22px}
  .oem-caps{grid-template-columns:repeat(2,1fr)}
  .mfg-chips{grid-template-columns:repeat(2,1fr)}
  .q-steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cert-row{grid-template-columns:repeat(2,1fr)}
  .h2{font-size:27px}
  .cta h2{font-size:28px}
  .sec-head.split{flex-direction:column;align-items:flex-start}
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .carousel{padding:30px 24px}
  .frow{grid-template-columns:1fr}
}
@media(max-width:420px){.p-grid{grid-template-columns:1fr}}