:root{color-scheme:light;--green:#087f5b;--deep:#17332b;--ink:#15231f;--muted:#687671;--line:#dce5e2;--bg:#f4f7f6;--soft:#edf6f2;--white:#fff}
*{box-sizing:border-box}
html{background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,"Microsoft YaHei",sans-serif;letter-spacing:0}
button,input{font:inherit;letter-spacing:0}
button{cursor:pointer}
img{display:block;max-width:100%}
.app{width:min(100%,920px);margin:0 auto;padding:28px 22px 70px}
.eyebrow{display:block;color:var(--green);font-size:12px;font-weight:800}
.title{margin:7px 0 0;font-size:34px;line-height:1.2}
.subtitle{margin:8px 0 0;color:var(--muted);font-size:15px}
.search{display:flex;align-items:center;height:58px;margin-top:24px;padding-left:18px;background:var(--white);border:1px solid var(--line);border-radius:6px}
.search-symbol{color:#62716c;font-size:21px}
.search input{min-width:0;flex:1;height:100%;margin:0 12px;border:0;outline:0;background:transparent;font-size:16px}
.primary{height:42px;margin-right:8px;padding:0 22px;border:0;border-radius:5px;background:var(--green);color:#fff;font-weight:700}
.industries{display:flex;gap:8px;margin:16px 0 0;padding:0 0 7px;overflow-x:auto;scrollbar-width:none}
.industries::-webkit-scrollbar{display:none}
.chip{flex:none;height:38px;padding:0 16px;border:1px solid #d8e2df;border-radius:5px;background:#fff;color:#53625e}
.chip.active{border-color:var(--deep);background:var(--deep);color:#fff}
.summary-row{display:flex;justify-content:space-between;gap:20px;margin:17px 2px;color:#73807c;font-size:13px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.case-card{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:6px;background:#fff;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.case-card:hover{transform:translateY(-2px);border-color:#b9cbc5;box-shadow:0 10px 24px rgba(23,51,43,.08)}
.cover-wrap{position:relative;display:block;width:100%;aspect-ratio:16/10;background:#e8eeec;overflow:hidden}
.cover{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.case-card:hover .cover{transform:scale(1.025)}
.qr-hover{position:absolute;z-index:2;inset:0;display:grid;place-items:center;padding:18px;background:rgba(7,25,19,.9);backdrop-filter:blur(8px);opacity:0;transform:scale(1.025);transition:opacity .28s ease,transform .35s ease;pointer-events:none}.case-card:hover .qr-hover,.case-card:focus-within .qr-hover{opacity:1;transform:none}.qr-hover-card{display:flex;align-items:center;flex-direction:column;color:#fff;text-align:center}.qr-hover-label{margin-bottom:9px;color:#66edb9;font-size:8px;font-weight:800;letter-spacing:1.8px}.qr-hover-image{width:156px;height:156px;padding:7px;border-radius:12px;background:#fff;object-fit:contain;box-shadow:0 14px 35px rgba(0,0,0,.28)}.qr-hover-card strong{margin-top:10px;font-size:14px}.qr-hover-card small{max-width:250px;margin-top:4px;overflow:hidden;color:#a9beb6;font-size:10px;text-overflow:ellipsis;white-space:nowrap}
.image-fallback{display:grid;min-height:160px;place-items:center;background:#e8eeec;color:#60716b;font-weight:700}
.cover-wrap>.image-fallback,.hero>.image-fallback{position:absolute;inset:0;min-height:0}
.case-body{padding:17px}
.case-title{margin:0;overflow:hidden;color:var(--ink);font-size:18px;line-height:1.35;text-overflow:ellipsis;white-space:nowrap}
.industry{display:block;margin-top:7px;overflow:hidden;color:var(--green);font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.description{height:46px;margin:9px 0 0;overflow:hidden;color:var(--muted);font-size:13px;line-height:23px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.case-actions{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;margin-top:12px;padding-top:12px;border-top:1px solid #edf1f0}
.case-link{display:flex;min-width:0;justify-content:space-between;color:#263d36;font-size:13px;text-decoration:none}
.qr-button{height:30px;padding:0 10px;border:1px solid #b9cbc5;border-radius:4px;background:#fff;color:var(--green);font-size:12px}
.qr-button:hover{border-color:var(--green);background:var(--soft)}
.qr-button:disabled{cursor:wait;opacity:.65}
.empty,.loading{padding:90px 0;text-align:center;color:#7b8884}
.more{display:block;width:180px;height:42px;margin:24px auto 0;border:1px solid #b9cbc5;border-radius:5px;background:#fff;color:var(--green)}
.detail{width:min(100%,820px);margin:0 auto}
.back{display:inline-flex;align-items:center;gap:6px;margin-bottom:16px;border:0;background:transparent;color:#52615c;text-decoration:none}
.hero{position:relative;overflow:hidden;aspect-ratio:16/9;border-radius:6px;background:#e8eeec}
.hero img{width:100%;height:100%;object-fit:cover}
.panel{margin-top:14px;padding:25px;border:1px solid var(--line);border-radius:6px;background:#fff}
.detail-title{margin:8px 0 0;font-size:30px;line-height:1.25}
.detail-summary{margin:12px 0 0;color:#62716c;line-height:1.8}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}
.tag{padding:5px 9px;border-radius:4px;background:var(--soft);color:#20604d;font-size:12px}
.section-title{margin:0 0 17px;font-size:20px}
.highlight{display:flex;gap:11px;margin:8px 0;color:#52615c;line-height:1.7}
.dot{width:6px;height:6px;flex:none;margin-top:10px;border-radius:50%;background:var(--green)}
.detail-image{width:100%;margin-top:12px;border-radius:4px;background:#edf1f0;cursor:zoom-in}
.access{text-align:center}
.access .section-title{text-align:left}
.qr{width:min(100%,330px);margin:0 auto;object-fit:contain}
.qr-tip{margin:10px 0;color:#6b7874;font-size:14px}
.copy{height:42px;margin-top:8px;padding:0 20px;border:0;border-radius:5px;background:var(--deep);color:#fff}
.path{display:block;margin-top:12px;color:#6b7874;font-size:13px;word-break:break-all}
.meta-row{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid #e8edeb;font-size:14px}
.meta-row:last-child{border-bottom:0}.meta-label{color:#798581}
.preview{position:fixed;z-index:20;inset:0;display:grid;place-items:center;padding:40px;background:rgba(6,20,16,.88)}
.preview[hidden]{display:none}.preview img{max-height:90vh;object-fit:contain}.preview-close{position:absolute;top:15px;right:20px;border:0;background:transparent;color:#fff;font-size:38px}
.toast{position:fixed;z-index:30;left:50%;bottom:35px;transform:translateX(-50%);padding:10px 16px;border-radius:4px;background:var(--deep);color:#fff;font-size:14px}
@media(max-width:820px){.app{padding:22px 15px 55px}.title{font-size:29px}.case-body{padding:14px}.case-title{font-size:16px}.panel{padding:20px}.detail-title{font-size:26px}}
@media(max-width:430px){.search{height:54px}.primary{padding:0 16px}.grid{gap:10px}.case-body{padding:12px}.description{height:42px;font-size:12px;line-height:21px}.summary-row{font-size:12px}.panel{padding:18px}.preview{padding:18px}}
@media(max-width:360px){.grid{grid-template-columns:1fr}}
@media(hover:none),(pointer:coarse){.qr-hover{display:none}}