:root{--primary: #8B7355;--primary-dark: #6B5744;--primary-light: #A89070;--accent: #C4A882;--bg: #F5F2EE;--white: #FFFFFF;--text: #2C2416;--text-light: #6B5D4F;--border: #E0D8CE;--radius: 8px;--shadow: 0 2px 12px rgba(44,36,22,.08);--max-w: 1200px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{cursor:pointer;border:none;background:none;font-family:inherit}.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}.section{padding:80px 0}.section-header{text-align:center;margin-bottom:48px}.section-header h2{font-size:2rem;font-weight:700;margin-bottom:8px;color:var(--text)}.section-header p{font-size:1.05rem;color:var(--text-light)}.section-footer{text-align:center;margin-top:40px}.page-hero{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;text-align:center;padding:72px 24px 56px}.page-hero h1{font-size:2.2rem;font-weight:700;margin-bottom:8px}.page-hero p{font-size:1.05rem;opacity:.85}.btn{display:inline-block;padding:12px 28px;border-radius:var(--radius);font-size:1rem;font-weight:600;transition:all .2s;cursor:pointer;border:2px solid transparent}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.btn-lg{padding:16px 40px;font-size:1.1rem}.btn-block{width:100%}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.header{position:sticky;top:0;z-index:100;background:#f5f2eeeb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.header-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:8px;font-size:1.15rem;font-weight:700;color:var(--primary-dark)}.logo-icon{font-size:1.4rem}.nav{display:flex;align-items:center;gap:4px}.nav-link{padding:8px 16px;border-radius:var(--radius);font-size:.95rem;color:var(--text-light);transition:all .2s}.nav-link:hover{color:var(--primary);background:#8b735514}.nav-cta{background:var(--primary);color:#fff!important}.nav-cta:hover{background:var(--primary-dark)!important}.footer{background:var(--text);color:#ffffffbf;padding:56px 0 0}.footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:48px}.footer-brand .logo-icon{font-size:1.4rem}.footer-brand>span{font-size:1.15rem;font-weight:700;color:#fff;margin-left:8px}.footer-desc{margin-top:12px;font-size:.9rem;line-height:1.7;color:#ffffff8c;max-width:320px}.footer-links{display:flex;gap:48px}.footer-col{display:flex;flex-direction:column;gap:10px}.footer-col h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:#fff6;margin-bottom:4px}.footer-col a{font-size:.9rem;color:#ffffffa6;transition:color .2s}.footer-col a:hover{color:var(--accent)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding:20px 24px;text-align:center;font-size:.85rem;color:#ffffff59}.hero{position:relative;height:100vh;min-height:580px;background:url(/images/cases/%E8%A7%82%E6%B9%96%E5%9B%BD%E9%99%85_image_1758009215633.jpg) center/cover no-repeat;display:flex;align-items:center;justify-content:center}.hero-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#2c2416a6,#6b574466);display:flex;align-items:center;justify-content:center}.hero-content{text-align:center;color:#fff;padding:24px;animation:fadeUp .8s ease-out}.hero-title{font-size:3rem;font-weight:800;line-height:1.2;margin-bottom:16px}.hero-title span{color:var(--accent)}.hero-sub{font-size:1.1rem;opacity:.85;margin-bottom:32px;line-height:1.6}.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.hero-scroll-hint{position:absolute;bottom:32px;left:50%;transform:translate(-50%);color:#fff9;font-size:.85rem;animation:bounce 2s infinite}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.feature-card{background:var(--white);border-radius:var(--radius);padding:28px 24px;text-align:center;box-shadow:var(--shadow);transition:transform .2s}.feature-card:hover{transform:translateY(-4px)}.feature-icon{font-size:2.4rem;margin-bottom:12px}.feature-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;color:var(--text)}.feature-card p{font-size:.9rem;color:var(--text-light);line-height:1.6}.categories-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.cat-card{border-radius:var(--radius);overflow:hidden;background:var(--white);box-shadow:var(--shadow);display:block;transition:transform .2s,box-shadow .2s}.cat-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #2c241624}.cat-img{height:180px;background-size:cover;background-position:center}.cat-info{padding:16px}.cat-info h3{font-size:1rem;font-weight:700;margin-bottom:4px}.cat-info p{font-size:.85rem;color:var(--text-light)}.cases-showcase{display:grid;grid-template-columns:1fr 280px;gap:16px}.cases-main-img{border-radius:var(--radius);background-size:cover;background-position:center;min-height:400px;transition:background-image .4s}.cases-list{display:flex;flex-direction:column;gap:8px;overflow-y:auto;max-height:440px}.case-thumb{display:flex;align-items:center;gap:12px;padding:8px;border-radius:var(--radius);border:2px solid transparent;transition:all .2s;text-align:left;width:100%;cursor:pointer}.case-thumb.active{border-color:var(--primary);background:#8b73550f}.thumb-img{width:64px;height:48px;border-radius:4px;background-size:cover;background-position:center;flex-shrink:0}.thumb-info{min-width:0}.thumb-info strong{display:block;font-size:.9rem;font-weight:600;color:var(--text)}.thumb-info span{font-size:.8rem;color:var(--text-light)}.cta-section{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);text-align:center}.cta-section h2{font-size:1.8rem;color:#fff;margin-bottom:12px}.cta-section p{color:#fffc;margin-bottom:28px;font-size:1.05rem}.cta-section .btn-primary{background:#fff;color:var(--primary-dark);border-color:#fff}.cta-section .btn-primary:hover{background:var(--bg);border-color:var(--bg)}.filter-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px;padding-top:8px}.filter-btn{padding:8px 20px;border-radius:20px;border:1.5px solid var(--border);font-size:.9rem;color:var(--text-light);transition:all .2s;background:var(--white)}.filter-btn.active,.filter-btn:hover{border-color:var(--primary);color:var(--primary);background:#8b73550f}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.product-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}.product-card:hover{transform:translateY(-4px)}.product-img{height:220px;background-size:cover;background-position:center}.product-info{padding:16px}.product-info h3{font-size:1rem;font-weight:600;margin-bottom:6px}.product-info p{font-size:.85rem;color:var(--text-light);margin-bottom:10px;line-height:1.5}.tag{display:inline-block;padding:3px 10px;border-radius:12px;background:#8b73551a;color:var(--primary);font-size:.78rem;margin-right:4px;margin-bottom:4px}.empty-state{text-align:center;padding:60px 0;color:var(--text-light)}.cases-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.case-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}.case-card:hover{transform:translateY(-4px)}.case-img{height:280px;background-size:cover;background-position:center}.case-info{padding:20px}.case-info h3{font-size:1.05rem;font-weight:700;margin-bottom:8px}.case-tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:10px}.case-info p{font-size:.88rem;color:var(--text-light);line-height:1.6}.about-content{max-width:760px;margin:0 auto}.about-section{margin-bottom:48px}.about-section h2{font-size:1.5rem;font-weight:700;color:var(--text);margin-bottom:16px;padding-bottom:8px;border-bottom:2px solid var(--primary);display:inline-block}.about-section p{font-size:.98rem;color:var(--text-light);line-height:1.9;margin-bottom:12px}.advantages{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.advantage{background:var(--white);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.advantage strong{display:block;margin-bottom:6px;font-size:1rem;color:var(--text)}.advantage p{font-size:.88rem;color:var(--text-light);margin:0}.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;padding:56px 0}.contact-info h2{font-size:1.5rem;font-weight:700;margin-bottom:24px}.info-item{display:flex;align-items:flex-start;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}.info-icon{font-size:1.6rem;flex-shrink:0}.info-item strong{display:block;font-weight:600;font-size:.95rem;color:var(--text);margin-bottom:2px}.info-item p{font-size:.88rem;color:var(--text-light);margin:0}.form-success{background:var(--white);border-radius:var(--radius);padding:48px;text-align:center;box-shadow:var(--shadow)}.success-icon{font-size:3rem;color:#4caf50;margin-bottom:16px}.form-success h3{font-size:1.3rem;margin-bottom:8px}.form-success p{color:var(--text-light);margin-bottom:24px}.contact-form{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.contact-form h2{font-size:1.3rem;font-weight:700;margin-bottom:24px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.88rem;font-weight:600;color:var(--text);margin-bottom:6px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:.95rem;font-family:inherit;color:var(--text);background:var(--bg);transition:border-color .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}.form-group textarea{resize:vertical}@keyframes fadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,to{transform:translate(-50%) translateY(0)}50%{transform:translate(-50%) translateY(8px)}}@media (max-width: 768px){.hero-title{font-size:2rem}.features-grid,.categories-grid{grid-template-columns:repeat(2,1fr)}.cases-showcase{grid-template-columns:1fr}.cases-list{flex-direction:row;overflow-x:auto;max-height:none}.products-grid{grid-template-columns:repeat(2,1fr)}.cases-grid{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr;padding:32px 0}.advantages{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr;gap:32px}.footer-links{flex-direction:column;gap:24px}.nav{gap:0}.nav-link{padding:8px 10px;font-size:.88rem}}@media (max-width: 480px){.hero-title{font-size:1.6rem}.features-grid,.categories-grid,.products-grid{grid-template-columns:1fr}.header-inner{gap:0}}