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var(--line-strong);border-radius:18px;overflow:hidden;background:#fffaf0;box-shadow:0 40px 120px #0009}.modal-card video{display:block;width:100%;max-height:76vh;background:#000}.modal-close{position:absolute;top:14px;right:14px;z-index:5;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,250,240,.35);background:#1e140a99;color:var(--paper);transition:all .3s}.modal-close:hover{background:var(--amber);color:#241505}.modal-empty{display:grid;place-items:center;min-height:320px;color:var(--muted);font-size:14px;letter-spacing:.1em}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2vw,28px)}.adv-card{position:relative;padding:34px 30px 30px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(170deg,#fffdf7,#fffaf0d9);overflow:hidden;transition:all .45s var(--ease);box-shadow:0 12px 34px #78461e0f}.adv-card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--amber),transparent);opacity:0;transition:opacity .4s}.adv-card:hover{transform:translateY(-5px);border-color:var(--line-strong);background:linear-gradient(170deg,#d97b2e1a,#fffdf7 50%);box-shadow:0 24px 60px #78461e24}.adv-card:hover:before{opacity:1}.adv-card .adv-num{position:absolute;top:20px;right:24px;font-family:var(--font-mono);font-size:13px;color:var(--muted);letter-spacing:.2em}.adv-card .adv-icon{display:grid;place-items:center;width:52px;height:52px;margin-bottom:22px;border:1px solid var(--line-strong);border-radius:14px;color:var(--amber);background:#d97b2e14;box-shadow:0 0 24px #d97b2e1a;transition:all .4s}.adv-card:hover .adv-icon{background:#d97b2e29;box-shadow:0 0 34px #d97b2e38}.adv-card h3{font-size:20px;font-weight:700;letter-spacing:.05em;margin-bottom:10px;color:var(--ink)}.adv-card p{color:var(--ink-2);font-size:14px;line-height:1.85}.contact-block{position:relative;border:1px solid var(--line-strong);border-radius:26px;padding:clamp(44px,6vw,84px);overflow:hidden;background:radial-gradient(900px 460px at 85% 0%,rgba(217,123,46,.16),transparent 60%),radial-gradient(700px 400px at 0% 100%,rgba(200,130,60,.14),transparent 55%),#fffaf0;box-shadow:0 30px 80px #78461e1f}.contact-block:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(140,90,40,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(140,90,40,.07) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000,transparent 75%)}.contact-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(40px,5vw,80px);align-items:center}.contact-inner .sec-no{display:flex;align-items:center;gap:14px;color:var(--amber);font-family:var(--font-mono);font-size:13px;letter-spacing:.28em;margin-bottom:20px}.contact-inner .sec-no:before{content:"";width:34px;height:1px;background:var(--line-strong)}.contact-inner h2{font-size:clamp(32px,3.8vw,54px);font-weight:800;line-height:1.2;letter-spacing:.02em;margin-bottom:20px;color:var(--ink)}.contact-inner .contact-desc{color:var(--ink-2);font-size:15px;line-height:1.9;max-width:560px;margin-bottom:34px}.contact-actions{display:flex;flex-wrap:wrap;gap:14px}.wechat-panel{position:relative;border:1px solid var(--line-strong);border-radius:20px;background:#fffdf7;padding:30px;text-align:center;box-shadow:0 30px 70px #78461e24}.wechat-panel h3{font-size:17px;letter-spacing:.12em;color:var(--ink);margin-bottom:6px}.wechat-panel>p{font-size:12px;color:var(--muted);margin-bottom:22px}.qr-photo{position:relative;width:168px;height:168px;margin:0 auto 20px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fff}.qr-img{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;z-index:2}.qr-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;background:#fffaf0}.qr-grid{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr);gap:2px;padding:10px}.qr-grid i{border-radius:2px;background:#3c2a1a14}.qr-grid i.on{background:#3a2a1a}.qr-center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;border-radius:10px;display:grid;place-items:center;background:#fffaf0;color:var(--amber-3);box-shadow:0 0 0 8px #fffaf0;font-family:var(--font-mono);font-size:10px;letter-spacing:.1em}.wechat-id{font-family:var(--font-mono);font-size:14px;letter-spacing:.08em;color:var(--amber-3);margin-bottom:18px}.wechat-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.wechat-btns .btn{padding:11px 20px;font-size:13px}.wechat-note{margin-top:16px;font-size:11px;color:var(--muted);line-height:1.7}.footer{border-top:1px solid var(--line);padding:34px 0 40px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-inner p{font-size:13px;color:var(--muted);letter-spacing:.06em}.footer-inner p strong{color:var(--ink-2);font-weight:600}.to-top{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--ink-2);font-size:12px;letter-spacing:.14em;transition:all .3s}.to-top:hover{border-color:var(--amber);color:var(--amber-3);transform:translateY(-2px)}.to-top svg{transform:rotate(180deg)}@media (max-width: 1100px){.exp-grid{grid-template-columns:1fr}.adv-grid{grid-template-columns:repeat(2,1fr)}.contact-inner{grid-template-columns:1fr}.wechat-panel{max-width:420px}}@media (max-width: 820px){.nav-links{display:none}.projects-grid,.adv-grid{grid-template-columns:1fr}.hero-foot{position:static;margin-top:40px;flex-direction:column;align-items:flex-start}.section-head{flex-direction:column;align-items:flex-start;gap:8px}}