:root{
  --ink:#17211b;
  --muted:#6d756f;
  --paper:#f5f3ed;
  --card:#fffef9;
  --line:#dddcd4;
  --accent:#1f6b45;
  --accent-2:#d9eee1;
  --danger:#a43c35;
  --shadow:0 16px 50px rgba(24,35,29,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 32px));margin:0 auto}
.topbar{position:sticky;top:0;z-index:20;background:rgba(245,243,237,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(23,33,27,.08)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--ink);color:white}
.nav-links{display:flex;align-items:center;gap:20px;font-size:14px}
.nav-links a:hover,.link-button:hover{opacity:.65}
.nav-primary{background:var(--ink);color:white;padding:10px 14px;border-radius:12px}
.username{color:var(--muted)}
.inline{display:inline}
.link-button{border:0;background:none;padding:0;cursor:pointer;color:inherit}
.hero{background:var(--ink);color:white;overflow:hidden}
.hero-inner{min-height:430px;display:grid;grid-template-columns:1.35fr .65fr;align-items:center;gap:48px;padding-top:58px;padding-bottom:58px}
.hero h1{font-size:clamp(44px,6vw,78px);line-height:1.04;letter-spacing:-3px;margin:12px 0 18px}
.hero p{color:#c7d1ca;font-size:17px;margin:0 0 30px}
.eyebrow{font-size:12px;letter-spacing:.18em;font-weight:800;color:#9ec7ad}
.eyebrow.dark{color:var(--accent)}
.hero-card{justify-self:end;width:min(330px,100%);aspect-ratio:1/1;background:#e7d8ac;color:var(--ink);border-radius:36px;padding:34px;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 30px 70px rgba(0,0,0,.25);transform:rotate(3deg)}
.hero-card strong{font-size:28px}
.hero-card span{margin-top:8px;color:#5d5a4d}
.hero-orb{width:90px;height:90px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#e7d8ac;font-size:42px;font-weight:800;margin-bottom:auto}
.button{border:0;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:white;padding:12px 18px;border-radius:12px;font-weight:750;cursor:pointer;transition:.18s transform,.18s opacity}
.button:hover{transform:translateY(-1px);opacity:.92}
.button-light{background:white;color:var(--ink)}
.button-secondary{background:#e4e5df;color:var(--ink)}
.button-danger{background:#f0dfdc;color:var(--danger)}
.full{width:100%}
.content-section{padding-top:52px;padding-bottom:72px}
.filters{display:grid;grid-template-columns:1fr 180px 180px auto;gap:10px;padding:14px;background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
input,select,textarea{width:100%;border:1px solid var(--line);background:white;border-radius:11px;padding:12px 13px;color:var(--ink);outline:none}
input:focus,select:focus,textarea:focus{border-color:#78a58b;box-shadow:0 0 0 3px rgba(31,107,69,.10)}
textarea{resize:vertical;line-height:1.7}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:48px 0 22px}
.section-heading h1,.section-heading h2{font-size:34px;margin:5px 0 0;letter-spacing:-1px}
.segmented{padding:4px;background:#e7e5dd;border-radius:12px;display:flex}
.segmented a{padding:8px 14px;border-radius:9px;color:var(--muted);font-size:14px}
.segmented a.active{background:white;color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.2s transform,.2s box-shadow}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product-image{aspect-ratio:4/3;background:#e9e6dd;position:relative;overflow:hidden}
.product-image img,.detail-image img,.manage-image img{width:100%;height:100%;object-fit:cover}
.no-image{width:100%;height:100%;display:grid;place-items:center;color:#94978f;background:linear-gradient(135deg,#e8e5dd,#f3f1eb)}
.no-image.large{min-height:420px}
.condition,.sold-badge{position:absolute;top:12px;padding:6px 9px;border-radius:999px;font-size:12px;font-weight:800}
.condition{left:12px;background:rgba(255,255,255,.88);backdrop-filter:blur(8px)}
.sold-badge{right:12px;background:var(--ink);color:white}
.product-body{padding:17px}
.product-meta{font-size:12px;color:var(--muted)}
.product-body h3{margin:7px 0 18px;font-size:17px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.product-bottom{display:flex;align-items:end;justify-content:space-between;gap:10px}
.price{font-size:23px;color:var(--accent)}
.price small,.detail-price small{font-size:.6em;margin-right:2px}
.seller{font-size:12px;color:var(--muted)}
.empty{text-align:center;padding:80px 20px;background:var(--card);border:1px dashed #c9c8c0;border-radius:22px}
.empty-icon{font-size:48px}
.empty h3{font-size:24px;margin:12px 0 7px}
.empty p{color:var(--muted);margin:0 0 20px}
.flash-wrap{position:relative}
.flash{margin-top:14px;padding:12px 15px;border-radius:11px;border:1px solid}
.flash-success{background:#e2f0e6;border-color:#b8d7c0}
.flash-danger{background:#f6e5e2;border-color:#e6b9b3}
.flash-warning{background:#fbf1d5;border-color:#e6d79c}
.auth-shell{min-height:calc(100vh - 150px);display:grid;grid-template-columns:1fr 480px;gap:80px;align-items:center;padding-top:60px;padding-bottom:60px}
.auth-copy h1{font-size:58px;line-height:1.05;letter-spacing:-2px;margin:12px 0}
.auth-copy p{color:var(--muted);font-size:17px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
.form-card{padding:30px}
.form-card h2{margin:0 0 22px;font-size:28px}
.form-card label{display:block;font-size:13px;font-weight:700;margin-bottom:16px}
.form-card label input,.form-card label select,.form-card label textarea{margin-top:7px;font-weight:400}
.checkbox{display:flex!important;align-items:center;gap:8px}
.checkbox input{width:auto!important;margin:0!important}
.form-tip{text-align:center;font-size:13px;color:var(--muted);margin:18px 0 0}
.form-tip a{color:var(--accent);font-weight:700}
.narrow{max-width:900px}
.page-title{margin-bottom:24px}
.page-title h1{font-size:42px;margin:8px 0}
.page-title p{color:var(--muted)}
.form-card.wide{padding:34px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.span-2{grid-column:1/-1}
.field-tip{display:block;margin-top:7px;color:var(--muted);font-weight:400}
.form-actions{display:flex;justify-content:flex-end;gap:10px;border-top:1px solid var(--line);padding-top:20px;margin-top:10px}
.detail-shell{display:grid;grid-template-columns:1.08fr .92fr;gap:36px}
.detail-image{position:relative;min-height:480px;background:#e8e5dd;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.sold-overlay{position:absolute;inset:0;background:rgba(23,33,27,.45);display:grid;place-items:center;color:white;font-size:54px;font-weight:900}
.detail-info{padding:12px 0}
.detail-tags{display:flex;gap:8px;flex-wrap:wrap}
.detail-tags span{font-size:12px;background:#e6e7e1;padding:7px 10px;border-radius:999px}
.detail-info h1{font-size:40px;line-height:1.15;letter-spacing:-1px;margin:18px 0}
.detail-price{font-size:40px;font-weight:900;color:var(--accent);margin-bottom:25px}
.seller-row{display:flex;align-items:center;gap:12px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:white;font-weight:800}
.muted{color:var(--muted);font-size:12px}
.info-box{margin:22px 0;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:5px 18px}
.info-box div{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}
.info-box div:last-child{border-bottom:0}
.info-box span{color:var(--muted)}
.owner-actions{display:flex;gap:9px;flex-wrap:wrap}
.description-panel{grid-column:1/-1;padding:30px;margin-top:8px}
.description-panel h2{margin:6px 0 20px}
.description{white-space:pre-wrap;line-height:1.85;color:#3f4741}
.manage-list{display:flex;flex-direction:column;gap:12px}
.manage-card{display:grid;grid-template-columns:150px 1fr auto;gap:20px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:12px}
.manage-image{height:110px;border-radius:12px;overflow:hidden;background:#e8e5dd}
.manage-main h3{margin:5px 0 12px}
.manage-actions{display:flex;gap:8px;padding-right:6px}
.error-code{font-size:70px;font-weight:900;color:var(--accent)}
footer{border-top:1px solid var(--line);padding:28px 0}
.footer-inner{display:flex;justify-content:space-between;gap:20px}
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr}.hero-card{display:none}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .filters{grid-template-columns:1fr 1fr}.filters input[type="search"]{grid-column:1/-1}
  .auth-shell{grid-template-columns:1fr;gap:28px}.auth-copy h1{font-size:44px}
  .detail-shell{grid-template-columns:1fr}.description-panel{grid-column:auto}
}
@media(max-width:620px){
  .container{width:min(100% - 22px,1180px)}
  .nav{height:auto;min-height:64px}.nav-links{gap:12px}.nav-links>a:nth-child(1){display:none}.username{display:none}
  .hero-inner{min-height:360px;padding-top:45px;padding-bottom:45px}.hero h1{font-size:45px;letter-spacing:-2px}
  .content-section{padding-top:32px;padding-bottom:50px}
  .filters{grid-template-columns:1fr}.filters input[type="search"]{grid-column:auto}
  .section-heading{align-items:center;margin-top:34px}.section-heading h1,.section-heading h2{font-size:28px}
  .product-grid{grid-template-columns:1fr 1fr;gap:10px}
  .product-body{padding:12px}.product-body h3{font-size:15px;margin-bottom:12px}.price{font-size:19px}.seller{display:none}
  .auth-shell{padding-top:34px}.auth-copy h1{font-size:38px}.form-card{padding:22px}
  .form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}
  .detail-image{min-height:320px}.detail-info h1{font-size:32px}
  .manage-card{grid-template-columns:92px 1fr}.manage-image{height:92px}.manage-actions{grid-column:1/-1}
  .footer-inner{flex-direction:column}
}