/* 黑银产品展厅：深色品牌区与浅色阅读区 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg-primary:#f3f4f6;--bg-secondary:#e9ecf0;--bg-card:#fff;--bg-card-hover:#fff;--text-primary:#191d23;--text-secondary:#636b76;--text-muted:#7a838e;--accent-cyan:#394c62;--accent-indigo:#394c62;--border-subtle:#dfe3e8;--border-glow:#a1acba;--gradient-main:linear-gradient(135deg,#252d38,#10151c);--gradient-cta:linear-gradient(135deg,#525e6d,#202833);--radius-sm:4px;--radius-md:8px;--radius-lg:10px;--radius-xl:12px}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{font-family:'Bahnschrift','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.7;min-height:100vh}
a{color:inherit}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}img{max-width:100%}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #8095ad;outline-offset:4px}
.container{max-width:1240px;margin:0 auto;padding:0 32px;position:relative}
.nav-bar{position:fixed;inset:0 0 auto;z-index:100;padding:18px 0;background:rgba(16,17,19,.97);border-bottom:1px solid #ffffff16;transition:padding .25s;backdrop-filter:blur(16px);color:#eef0f3}
.nav-bar.scrolled{padding:12px 0}.nav-container{display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{display:flex;align-items:center;gap:13px;text-decoration:none;min-width:0}.logo-icon{width:30px;height:30px;border:2px solid #d1d6dd;transform:rotate(-20deg);display:grid;place-items:center;border-radius:5px;flex-shrink:0}.logo-icon span{width:12px;height:12px;border:1px solid #88929f}.site-logo{width:38px;height:38px;object-fit:contain}.logo-text{font-size:17px;letter-spacing:1px;font-weight:600;max-width:230px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.main-nav{display:flex;gap:8px}.nav-link{padding:10px 18px;text-decoration:none;font-size:13px;color:#969da7;border-bottom:1px solid transparent;transition:.2s}.nav-link:hover,.nav-link.active{color:#fff}.nav-link.active{border-color:#bcc3cd}.nav-actions{display:flex;align-items:center;gap:16px}.btn-cta{display:flex;align-items:center;gap:10px;font-size:12px;color:#c0c5cc;text-decoration:none}.cta-icon{color:#fff;font-size:20px}.cta-number{font-family:Consolas,monospace;color:#e3e6eb;font-size:13px;white-space:nowrap}.menu-toggle{display:none;background:none;border:0;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px}.menu-toggle span{width:22px;height:2px;background:#eef0f3;transition:.25s}
.hero-section{background:#101113;color:#fff;padding:112px 0 0;position:relative;overflow:hidden}.hero-layout{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;min-height:510px;gap:40px;padding-top:40px;padding-bottom:68px}.hero-eyebrow,.art-label{font-family:Consolas,monospace;font-size:11px;color:#949ca8;letter-spacing:3px}.hero-copy h1{font-size:clamp(42px,5.2vw,68px);font-weight:600;line-height:1.22;letter-spacing:-2px;margin:22px 0}.hero-copy h1 span{color:#b6beca}.hero-copy p{color:#9199a5;font-size:15px;line-height:2}.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}.btn-main,.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:48px;padding:12px 24px;border-radius:5px;text-decoration:none;font-size:14px;font-weight:500;transition:transform .2s,background .2s;border:1px solid transparent}.btn-main{background:var(--gradient-main);color:#fff}.btn-main:hover{transform:translateY(-2px);background:#3a4657}.btn-outline{border-color:var(--border-glow);background:transparent;color:var(--text-primary)}.btn-outline:hover{background:#e7ebf0}.hero-section .btn-main{background:#e8ebef;color:#161a20}.hero-section .btn-main:hover{background:#fff}.hero-section .btn-outline{border-color:#505760;color:#e5e8ec}.hero-section .btn-outline:hover{background:#262a31}
.hero-art{height:360px;position:relative;display:grid;place-items:center;background:radial-gradient(ellipse at center,#c0cad11b,transparent 65%)}.metal-frame{width:248px;height:248px;border-radius:48px;transform:rotate(-22deg);background:linear-gradient(135deg,#f4f5f6 0%,#adb3bc 13%,#454c57 31%,#c1c6cd 49%,#3b424c 67%,#1b2027 79%,#bfc4cc 100%);box-shadow:24px 35px 55px #0009,inset 1px 1px 3px #fff;display:grid;place-items:center;animation:metal-arrive 1s ease-out both}.metal-core{width:152px;height:152px;background:linear-gradient(135deg,#20252c,#0d1015);border-radius:27px;box-shadow:inset 4px 4px 20px #000,1px 1px 1px #ffffff66;border:1px solid #161b22}.metal-core::after{content:'';display:block;width:72px;height:72px;border:1px solid #414a56;border-radius:12px;margin:39px;background:linear-gradient(135deg,#ffffff06,transparent)}.art-label{position:absolute;font-size:9px;letter-spacing:2px}.label-top{top:8px;left:18px}.label-bottom{bottom:2px;right:0}.art-guide{position:absolute;width:45px;height:45px;border-color:#4e5865;border-style:solid}.guide-top{left:0;top:0;border-width:1px 0 0 1px}.guide-bottom{right:0;bottom:25px;border-width:0 1px 1px 0}.hero-strip{display:flex;align-items:center;gap:52px;min-height:86px;border-top:1px solid #ffffff1c;font-size:12px;color:#868f9b}.hero-strip strong{color:#d7dce4;font-weight:500;margin-right:16px}.hero-strip a{margin-left:auto;text-decoration:none;color:#c3cad4}.hero-strip a span{margin-left:14px}
.banner-section{padding:40px 0 0}.hero-slides{position:relative;width:100%;aspect-ratio:3.6;max-height:340px;overflow:hidden;border-radius:var(--radius-lg);background:#181e27}.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s}.hero-slide.active{opacity:1}.hero-slide img{width:100%;height:100%;object-fit:cover}.hero-slide-overlay{position:absolute;inset:0;background:linear-gradient(90deg,#10151acc,#10151a22);display:flex;flex-direction:column;justify-content:center;padding:38px 48px;color:#fff}.hero-slide-overlay h2{font-size:clamp(22px,3vw,36px);font-weight:600;margin-bottom:10px}.hero-slide-overlay p{max-width:580px;color:#e1e5eb;font-size:14px}.hero-dots{position:absolute;bottom:8px;right:24px;display:flex;gap:0;z-index:2}.hero-dots button{width:44px;height:44px;border:0;background:none;position:relative}.hero-dots button::after{content:'';position:absolute;left:8px;right:8px;top:21px;height:3px;background:#ffffff50}.hero-dots button.active::after{background:#fff}
.section{padding:72px 0}.section-header{margin-bottom:32px;text-align:left}.section-tag{font-family:Consolas,monospace;color:#778391;font-size:10px;letter-spacing:2px;margin-bottom:10px}.section-title{font-size:clamp(24px,3vw,34px);font-weight:600;letter-spacing:-.6px;margin-bottom:8px}.section-subtitle{color:var(--text-secondary);font-size:14px}.cat-nav-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.cat-card{display:flex;align-items:center;gap:14px;padding:20px 18px;background:#fff;border:1px solid var(--border-subtle);border-radius:6px;text-decoration:none;transition:.2s;min-width:0}.cat-card:hover{border-color:#a6b1be;transform:translateY(-3px)}.cat-ico{font:12px Consolas,monospace;color:#84909e;min-width:25px}.cat-info{flex:1;min-width:0}.cat-name{font-size:14px;font-weight:500;overflow-wrap:anywhere}.cat-count{font-size:11px;color:var(--text-muted);margin-top:3px}.cat-arrow{color:#84909e}.collection-section{background:#e9edf1;border-block:1px solid #e1e5ea}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.product-card{display:flex;flex-direction:column;min-width:0;background:#fff;border:1px solid var(--border-subtle);border-radius:8px;overflow:hidden;text-decoration:none;transition:transform .25s,box-shadow .25s}.product-card:hover{transform:translateY(-5px);box-shadow:0 14px 28px #1426380d;border-color:#b7c0cc}.product-cover{aspect-ratio:16/10;background:#e8ecf1;position:relative;overflow:hidden;border-bottom:1px solid #e5e9ed}.product-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.product-card:hover .product-cover img{transform:scale(1.035)}.product-cover-placeholder{height:100%;display:flex;align-items:center;justify-content:center;color:#7d8793;font-size:12px;background:#edf0f4;letter-spacing:1px}.featured-badge{position:absolute;top:12px;left:12px;background:#202731e8;color:#fff;font-size:10px;padding:4px 9px;border-radius:3px}.product-info{padding:20px;flex:1}.product-cat{font-size:11px;color:#738196;margin-bottom:9px}.product-title{font-size:15px;line-height:1.65;font-weight:600;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-desc{font-size:12px;color:var(--text-secondary);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.product-card-footer{padding:13px 20px;border-top:1px solid #edf0f3;font-size:12px;color:#465970}.view-detail{display:block}.empty-state{text-align:center;padding:72px 24px;color:var(--text-muted)}.empty-ico{font-family:Consolas,monospace;font-size:22px;letter-spacing:3px;margin-bottom:14px}
.cat-header,.contact-hero{padding:142px 0 42px}.cat-header h1,.contact-hero h1{font-size:clamp(30px,4vw,44px);font-weight:600;letter-spacing:-1px}.breadcrumb{display:flex;flex-wrap:wrap;gap:9px;align-items:center;font-size:12px;color:var(--text-muted);margin-bottom:25px;overflow-wrap:anywhere}.breadcrumb a{text-decoration:none;color:var(--text-secondary)}.breadcrumb a:hover{color:#152d47}.breadcrumb .current{color:var(--text-primary)}.product-search{display:flex;gap:10px;max-width:570px;margin-top:24px}.product-search input{min-width:0;flex:1;padding:13px 18px;background:#fff;border:1px solid var(--border-subtle);border-radius:5px;color:var(--text-primary);font-size:14px}.cat-tabs{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:32px}.cat-tab{display:inline-flex;align-items:center;gap:4px;min-height:42px;padding:9px 18px;background:#fff;border:1px solid #d5dce4;border-radius:4px;text-decoration:none;color:var(--text-secondary);font-size:12px}.cat-tab:hover{border-color:#8795a6}.cat-tab.active{background:#212833;color:#fff;border-color:#212833}.cat-tab .count{font:10px Consolas,monospace;opacity:.65}.pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:40px}.page-link{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px 12px;border:1px solid #d6dce4;border-radius:4px;background:#fff;text-decoration:none;color:#576477}.page-link.active{background:#222a35;color:#fff}
.page-hero{padding:126px 0 6px}.product-detail{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;margin-bottom:50px}.product-detail-gallery{background:#fff;border:1px solid var(--border-subtle);border-radius:10px;overflow:hidden;align-self:start}.main-image{aspect-ratio:16/11;position:relative;background:#e9edf2;display:flex;align-items:center;justify-content:center}.main-image img{width:100%;height:100%;object-fit:contain}.placeholder-ico{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:14px;color:#7b8796}.product-detail-info{display:flex;flex-direction:column;min-width:0}.detail-cat{width:fit-content;font-size:11px;letter-spacing:.5px;color:#53657b;background:#e3e9ef;border:1px solid #ced7e1;padding:5px 12px;border-radius:4px;margin-bottom:16px}.detail-title{font-size:clamp(22px,3vw,32px);font-weight:600;line-height:1.5;margin-bottom:16px;overflow-wrap:anywhere}.detail-desc{font-size:14px;color:var(--text-secondary);line-height:1.9;margin-bottom:24px}.detail-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:26px}.meta-item{display:flex;align-items:center;gap:12px;padding:13px;background:#fff;border:1px solid var(--border-subtle);border-radius:6px;min-width:0}.meta-ico{font:11px Consolas,monospace;color:#7c8b9c}.meta-label{font-size:10px;color:var(--text-muted)}.meta-value{font-size:12px;overflow-wrap:anywhere}.detail-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto}.action-phone,.action-wechat{display:flex;align-items:center;gap:14px;padding:17px 22px;border-radius:6px;text-decoration:none;border:1px solid #222a35;background:#222a35;color:#fff;transition:.2s}.action-wechat{background:#fff;color:#313e4e;border-color:#c2cbd7}.action-phone:hover,.action-wechat:hover{transform:translateY(-2px)}.action-ico{font-size:20px}.action-text{flex:1;min-width:0}.action-text small{display:block;font-size:11px;opacity:.7}.action-text strong{font-size:17px;font-weight:500;overflow-wrap:anywhere}.product-content-block{background:#fff;border:1px solid var(--border-subtle);border-radius:10px;padding:44px;margin-bottom:48px}.content-block-title{font-size:21px;font-weight:600;padding-bottom:20px;border-bottom:1px solid var(--border-subtle);margin-bottom:28px}.content-body{color:#4d5662;font-size:15px;line-height:2;overflow-wrap:anywhere}.content-body h1,.content-body h2,.content-body h3,.content-body h4{color:#1a222d;margin:28px 0 14px}.content-body p{margin-bottom:16px}.content-body ul,.content-body ol{padding-left:24px;margin-bottom:18px}.content-body img,.content-body video,.content-body iframe{max-width:100%}.content-body img,.content-body video{height:auto}.content-body img{margin:16px 0;border-radius:4px}.content-body table,.content-body pre{display:block;max-width:100%;overflow-x:auto}.content-body strong{color:#202b3a}.content-body a{color:#3c5c81}
.contact-hero p{color:var(--text-secondary);margin-top:14px;font-size:15px}.contact-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;margin-bottom:48px}.contact-card{background:#fff;border:1px solid var(--border-subtle);border-radius:8px;padding:32px;transition:.2s;min-width:0}.contact-card:hover{transform:translateY(-4px);border-color:#a3b0c0}.contact-card-icon{font:12px Consolas,monospace;letter-spacing:2px;color:#8895a5;margin-bottom:24px}.contact-card h3{font-size:17px;font-weight:500;margin-bottom:14px}.contact-main{font:22px Consolas,monospace;color:#283b53;overflow-wrap:anywhere}.contact-sub{font-size:12px;color:var(--text-secondary);margin-top:8px}.qr-wrap{margin-top:20px}.qr-wrap img{width:160px;border:1px solid var(--border-subtle);border-radius:4px}.cta-section{padding:20px 0 70px}.cta-box{background:#181c23;color:#f0f3f7;padding:52px;border:1px solid #303944;border-radius:10px;position:relative}.cta-box h2{font-size:clamp(24px,3vw,34px);font-weight:500;margin-bottom:12px}.cta-box p{color:#9ca7b6;font-size:14px;margin-bottom:26px}.cta-box .btn-main{background:#e8edf3;color:#1c2430}.cta-box .btn-outline{color:#e4eaf2;border-color:#566376}
.site-footer{background:#101318;color:#dce2ea;padding:64px 0 26px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;margin-bottom:44px}.footer-title{font-size:17px;font-weight:500;margin-bottom:16px}.footer-desc{font-size:12px;color:#8993a1;line-height:2;margin-bottom:20px}.footer-col h4{font-size:12px;font-weight:500;margin-bottom:18px;color:#d4dce8}.footer-col ul{list-style:none}.footer-col li{margin-bottom:10px}.footer-col li a{color:#8895a7;font-size:12px;text-decoration:none}.footer-col li a:hover{color:#fff}.footer-tags{display:flex;flex-wrap:wrap;gap:8px}.footer-tags span{font-size:10px;color:#8f9db0;border:1px solid #313a47;padding:3px 9px;border-radius:3px}.contact-item{display:flex;gap:13px;margin-bottom:16px}.contact-ico{font:9px Consolas,monospace;min-width:29px;color:#6f8097;margin-top:4px}.contact-label{font-size:10px;color:#748094}.contact-value{font-size:12px;color:#d3deec;text-decoration:none;overflow-wrap:anywhere}.footer-bottom{border-top:1px solid #26303d;padding-top:22px;font-size:11px;color:#708097}.fab-phone{display:none;position:fixed;bottom:24px;right:20px;width:52px;height:52px;align-items:center;justify-content:center;color:#fff;background:#242e3e;border:1px solid #ffffff30;border-radius:50%;z-index:90;box-shadow:0 8px 24px #1a283c33}
.service-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:24px}.service-number{font:24px Consolas,monospace;color:#8391a3;margin-bottom:12px}
.fade-up{opacity:0;transform:translateY(18px);transition:opacity .5s,transform .5s}.fade-up.visible{opacity:1;transform:none}@keyframes metal-arrive{from{opacity:0;transform:translateY(16px) rotate(-15deg)}to{opacity:1;transform:translateY(0) rotate(-22deg)}}
@media(max-width:1100px){.product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.btn-cta>span:nth-child(2){display:none}.logo-text{max-width:190px}.hero-strip{gap:24px}.cat-nav-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid{grid-template-columns:1.5fr 1fr;gap:36px}.product-detail{gap:28px}}
@media(max-width:768px){.container{padding-left:22px;padding-right:22px}.nav-bar,.nav-bar.scrolled{padding:10px 0}.logo-text{font-size:15px;max-width:220px}.logo-icon{width:26px;height:26px}.nav-actions .btn-cta{display:none}.menu-toggle{display:flex}.main-nav{display:none}.main-nav.open{display:flex;flex-direction:column;position:fixed;top:64px;left:0;right:0;background:#151a21;padding:14px 22px 22px;max-height:calc(100dvh - 64px);overflow-y:auto;border-bottom:1px solid #343e4b}.nav-link{min-height:44px}.nav-link.active{border-bottom-color:transparent;background:#2b333f}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}body.nav-open{overflow:hidden}.hero-section{padding-top:92px}.hero-layout{grid-template-columns:1fr;gap:32px;min-height:0;padding-top:26px;padding-bottom:35px}.hero-copy h1{font-size:48px;letter-spacing:-1px}.hero-copy p{font-size:14px}.hero-art{height:290px;max-width:450px;width:100%;justify-self:center}.metal-frame{width:195px;height:195px;border-radius:38px}.metal-core{width:120px;height:120px;border-radius:22px}.metal-core::after{width:58px;height:58px;margin:30px}.hero-strip{flex-wrap:wrap;gap:12px 22px;padding-top:20px;padding-bottom:22px;font-size:10px}.hero-strip strong{margin-right:8px}.hero-strip a{margin-left:0;flex-basis:100%;margin-top:6px}.hero-slides{aspect-ratio:16/8;touch-action:pan-y}.hero-slide-overlay{padding:24px 22px 54px}.hero-slide-overlay p{font-size:12px}.banner-section{padding-top:24px}.section{padding:48px 0}.section-title{font-size:27px}.cat-nav-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.cat-card{padding:16px 12px;gap:9px}.cat-name{font-size:12px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.product-info{padding:16px}.product-card-footer{padding:12px 16px}.product-title{font-size:14px}.cat-header,.contact-hero{padding:112px 0 30px}.cat-tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px}.cat-tab{white-space:nowrap;min-height:44px}.page-hero{padding:108px 0 0}.product-detail{grid-template-columns:1fr;gap:26px;margin-bottom:32px}.product-detail-gallery{min-width:0}.detail-meta{grid-template-columns:1fr 1fr}.product-content-block{padding:26px 22px;margin-bottom:32px}.cta-box{padding:32px 26px}.cta-section{padding-bottom:44px}.cta-box>div{justify-content:flex-start!important}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-col:first-child{grid-column:1/-1}.fab-phone{display:flex;bottom:calc(20px + env(safe-area-inset-bottom,0px));right:16px}.contact-cards{grid-template-columns:1fr}.contact-card{padding:28px}.footer-bottom{padding-bottom:55px}}
@media(max-width:480px){.product-grid{grid-template-columns:1fr}.product-cover{aspect-ratio:16/9}.cat-ico{min-width:18px;font-size:10px}.hero-copy h1{font-size:42px}.hero-copy .btn-main,.hero-copy .btn-outline{padding:12px 18px;font-size:13px}.hero-art{height:270px}.hero-strip{gap:10px 16px}.hero-slides{aspect-ratio:16/10}.detail-meta{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-col:first-child{grid-column:auto}.product-search .btn-main{padding-inline:20px}.breadcrumb{font-size:11px}.cta-box{padding:28px 22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.fade-up{opacity:1;transform:none}}
/* 产品价格 */
.product-card-footer{display:flex;justify-content:space-between;align-items:center;gap:10px}
.card-price{font-size:17px;font-weight:700;color:#b6453c;letter-spacing:.3px;white-space:nowrap}
.card-price-ask{font-size:12px;font-weight:400;color:var(--text-muted)}
.detail-price{display:flex;align-items:baseline;gap:14px;padding:16px 20px;background:#f5f7fa;border:1px solid var(--border-subtle);border-left:3px solid #b6453c;border-radius:8px;margin-bottom:26px}
.detail-price .price-label{font-size:13px;color:var(--text-secondary)}
.price-num{font-size:32px;font-weight:700;color:#b6453c;line-height:1.2;letter-spacing:.5px}
.price-ask-text{font-size:20px;font-weight:600;color:var(--text-secondary)}
@media(max-width:480px){.card-price{font-size:15px}.price-num{font-size:26px}}