:root{--color-cream: #FFFDF7;--color-dark: #231E1C;--color-gold: #B99B5F;--color-gray: #C3BEB4;--color-amber: #A08C64;--color-gold-hover: #a68a52;--color-dark-light: #3a3330;--font-family: "HarmonyOS Sans", "HarmonyOS Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;--max-width: 1200px;--section-gap: 48px;--card-padding: 32px;--radius-card: 12px;--radius-btn: 4px;--line-height: 1.7;--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1)}[data-theme=dark]{--color-cream: #1a1816;--color-dark: #f5f0e8;--color-gray: #5a5550;--color-amber: #c4a87a;--color-dark-light: #e0dbd3}[data-theme=dark] .navbar,[data-theme=dark] .navbar.scrolled{background-color:#1a1816f2}[data-theme=dark] .hero__title,[data-theme=dark] .hero__subtitle{color:#fff}[data-theme=dark] .footer{background-color:#0f0d0b}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);font-size:14px;font-weight:400;line-height:var(--line-height);color:var(--color-dark);background-color:var(--color-cream);-webkit-font-smoothing:antialiased;overflow-x:hidden}.page-loading{position:fixed;top:0;left:0;width:0%;height:3px;background:linear-gradient(90deg,var(--color-gold),var(--color-amber));z-index:10001;transition:width .3s var(--ease-out)}.page-loading.loaded{width:100%;opacity:0;transition:width .5s var(--ease-out),opacity .5s ease .3s}.skip-to-content{position:fixed;top:-100px;left:50%;transform:translate(-50%);background:var(--color-gold);color:#fff;padding:12px 24px;border-radius:4px;z-index:10002;transition:top 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var(--ease-out)}.fade-in-left.visible{opacity:1;transform:translate(0)}.fade-in-right{opacity:0;transform:translate(40px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}.fade-in-right.visible{opacity:1;transform:translate(0)}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;transition:background-color .3s ease,box-shadow .3s ease,transform .3s ease;background-color:#fff9f0f2;box-shadow:0 1px #231e1c14}.navbar.hidden{transform:translateY(-100%)}.navbar.scrolled{background-color:#fff9f0eb;box-shadow:0 1px #231e1c14}.page-home .navbar{background-color:transparent;box-shadow:none}.page-home .navbar.scrolled{background-color:#fff9f0eb;box-shadow:0 1px #231e1c14}.navbar .container{display:flex;align-items:center;justify-content:space-between}.navbar__logo{display:flex;align-items:center}.navbar__logo img{height:36px;width:auto;display:block;object-fit:contain;transition:transform .3s var(--ease-spring)}.navbar__logo:hover img{transform:scale(1.05)}.navbar__logo span{color:var(--color-gold)}.navbar__links{display:flex;gap:32px}.navbar__links a{font-size:13px;font-weight:400;letter-spacing:1px;color:var(--color-dark);transition:color .2s ease;position:relative}.navbar__links a:after{content:"";position:absolute;bottom:-4px;left:50%;width:0;height:2px;background:var(--color-gold);transition:width .3s var(--ease-out),left .3s var(--ease-out)}.navbar__links a:hover,.navbar__links a.active{color:var(--color-gold)}.navbar__links a.active:after,.navbar__links a:hover:after{width:100%;left:0}.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;z-index:1001}.hamburger span{display:block;width:24px;height:2px;background:var(--color-dark);transition:transform .3s var(--ease-out),opacity .3s ease}.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}.hamburger.open 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44px;text-align:center}.beian-eyebrow{color:var(--color-amber);font-size:12px;letter-spacing:4px;margin-bottom:12px}.beian-title{font-size:30px;font-weight:900;letter-spacing:3px;color:var(--color-dark);margin-bottom:8px}.beian-sub{color:var(--color-amber);font-size:14px;margin-bottom:32px}.beian-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border:1px solid rgba(185,155,95,.25);border-radius:10px;background:#fffdf799;margin-bottom:14px;text-align:left}.beian-label{font-size:14px;font-weight:700;color:var(--color-dark);opacity:.7;letter-spacing:1px;white-space:nowrap}.beian-value{font-size:15px;font-weight:700;color:var(--color-gold);text-decoration:underline;text-underline-offset:3px;word-break:break-all}.beian-value:hover{text-decoration:underline}.beian-note{font-size:13px;color:var(--color-amber);line-height:1.8;margin-top:18px;text-align:left}.page-home{background-color:#fffef9}[data-theme=dark] 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.product-card__img{transform:scale(1.03)}.product-card__icon{width:48px;height:48px;margin-bottom:16px;color:var(--color-gold)}.product-card__name{font-size:16px;font-weight:700;margin-bottom:8px}.product-card__tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.product-card__tag{font-size:11px;letter-spacing:1px;padding:4px 10px;border:1px solid var(--color-gray);border-radius:2px;color:var(--color-amber)}.product-card__detail{display:none;margin-top:20px;padding-top:20px;border-top:1px solid var(--color-gray);max-height:0;overflow:hidden;transition:max-height .5s var(--ease-out),opacity .3s ease;opacity:0}.product-card__detail.open{display:block;max-height:600px;opacity:1}.product-card__detail table{width:100%;border-collapse:collapse;margin-bottom:16px}.product-card__detail td{padding:8px 0;font-size:13px;border-bottom:1px solid rgba(195,190,180,.4)}.product-card__detail td:first-child{color:var(--color-amber);width:40%}.product-card__toggle{font-size:12px;color:var(--color-gold);cursor:pointer;letter-spacing:1px;margin-top:8px;display:inline-flex;align-items:center;gap:4px;transition:color .2s}.product-card__toggle:hover{color:var(--color-gold-hover)}.product-card__toggle .arrow{display:inline-block;transition:transform .3s var(--ease-out)}.product-card__detail.open~.product-card__toggle .arrow{transform:rotate(180deg)}.projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}.project-card{overflow:hidden}.project-card__img{width:100%;height:280px;object-fit:cover;display:block;transition:transform .5s var(--ease-out)}.project-card:hover .project-card__img{transform:scale(1.05)}.project-card__body{padding:24px 32px 32px;transition:background-color .2s}.project-card:hover 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