:root{
  --bg:#0a0b0f;
  --panel:#151a22;
  --card:#12151c;
  --text:#f2f3f5;
  --muted:#9aa0a8;
  --line:#232831;
  --accent1:#ff6ec4;
  --accent2:#7873f5;
  --accent3:#5b8cff;
  --grad:linear-gradient(135deg,#ff6ec4 0%,#7873f5 50%,#5b8cff 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,110,196,.16),rgba(120,115,245,.16),rgba(91,140,255,.16));
  --radius:16px;
  --shadow:0 14px 36px rgba(0,0,0,.55);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","HarmonyOS_Medium","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
::selection{background:rgba(120,115,245,.4)}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#262c36;border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:#333b47}

/* HERO */
.hero{position:relative;padding:66px 16px 42px;text-align:center;background:
  radial-gradient(1200px 420px at 50% -12%,rgba(120,115,245,.20),transparent 60%),
  radial-gradient(900px 360px at 82% 0%,rgba(255,110,196,.14),transparent 55%),
  linear-gradient(180deg,#0c0e14,var(--bg));
  overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(620px 200px at 18% 22%,rgba(91,140,255,.10),transparent 60%);pointer-events:none}
.brand{font-size:clamp(34px,6vw,58px);font-weight:900;letter-spacing:1px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.04;position:relative}
.brand .zh{display:block;font-size:clamp(14px,2.6vw,20px);font-weight:600;color:var(--muted);margin-top:10px;letter-spacing:8px;-webkit-text-fill-color:var(--muted)}
.tagline{font-size:clamp(13px,2vw,16px);color:var(--muted);margin:16px auto 0;max-width:640px;line-height:1.65;position:relative}
.hero-search{margin:28px auto 0;max-width:520px;position:relative;position:relative}
.hero-search svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);opacity:.55}
.hero-search input{width:100%;padding:15px 20px 15px 48px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);outline:none;font-size:15px;transition:.2s}
.hero-search input:focus{border-color:var(--accent2);box-shadow:0 0 0 4px rgba(120,115,245,.16);background:rgba(255,255,255,.06)}

/* sticky topbar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(10,11,15,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:11px 16px}
.topbar-inner{max-width:1400px;margin:0 auto;display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:center}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.chip{padding:8px 15px;border-radius:999px;background:var(--panel);border:1px solid var(--line);cursor:pointer;font-size:13px;color:var(--muted);transition:.18s;white-space:nowrap}
.chip:hover{color:#fff;border-color:#39414e}
.chip.active{background:var(--grad);color:#fff;border-color:transparent;font-weight:600;box-shadow:0 6px 16px rgba(120,115,245,.3)}

/* grid */
.grid{max-width:1400px;margin:0 auto;padding:22px 16px;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s,border-color .25s,opacity .55s ease,transform .55s cubic-bezier(.2,.7,.3,1);display:none;flex-direction:column;opacity:0;transform:translateY(28px)}
.card.in{display:flex;opacity:1;transform:none}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#333b47}
.img-wrap{aspect-ratio:1/1;background:linear-gradient(135deg,#f6f7f8,#e9ebee);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.img-wrap img{max-width:100%;max-height:100%;object-fit:contain;transition:transform .4s ease}
.card:hover .img-wrap img{transform:scale(1.06)}
.badge{position:absolute;top:10px;left:10px;background:var(--grad);color:#fff;font-size:10px;font-weight:700;padding:4px 9px;border-radius:999px;letter-spacing:.5px;box-shadow:0 4px 12px rgba(120,115,245,.4)}
.card-body{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-cat{font-size:11px;font-weight:800;background:var(--grad-soft);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.5px}
.card-title{font-size:13.5px;line-height:1.4;height:56px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;color:#e7e9ee}
.card-price{font-size:17px;font-weight:800;color:#fff;display:flex;align-items:baseline;gap:6px}
.card-price .rmb{font-size:11px;color:var(--muted);font-weight:500}
.card-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto;padding-top:10px}
.btn-buy,.btn-qc{display:block;text-align:center;padding:11px 0;border-radius:10px;font-size:13px;font-weight:700;border:none;cursor:pointer;transition:.18s}
.btn-buy{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(120,115,245,.3)}
.btn-buy:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-qc{background:var(--panel);color:var(--muted);border:1px solid var(--line)}
.btn-qc:hover{color:#fff;border-color:#39414e}

/* sentinel */
.sentinel{text-align:center;padding:32px;color:var(--muted);font-size:13px}
.spinner{width:22px;height:22px;border:3px solid #2a2f3a;border-top-color:var(--accent2);border-radius:50%;display:inline-block;animation:spin .8s linear infinite;vertical-align:middle;margin-right:8px}
@keyframes spin{to{transform:rotate(360deg)}}
.end-note{text-align:center;padding:24px;color:#5b606b;font-size:12px}

/* footer */
footer{text-align:center;padding:36px 16px;font-size:12px;color:#5b606b;border-top:1px solid var(--line);margin-top:10px}

/* modal */
.modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.8);z-index:999;align-items:flex-start;justify-content:center;padding:40px 12px;backdrop-filter:blur(4px)}
.modal-content{width:100%;max-width:540px;max-height:calc(100vh - 80px);background:var(--panel);border-radius:var(--radius);border:1px solid var(--line);display:flex;flex-direction:column;box-shadow:var(--shadow);animation:pop .25s ease}
@keyframes pop{from{transform:translateY(14px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.modal-header{display:flex;justify-content:space-between;align-items:flex-start;padding:18px 20px;border-bottom:1px solid var(--line)}
.modal-title{font-size:18px;font-weight:800}
.modal-subtitle{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.4;max-width:380px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal-close{background:none;border:none;color:var(--muted);font-size:26px;cursor:pointer;line-height:1}
.modal-close:hover{color:#fff}
.modal-body{overflow-y:auto;padding:10px 14px 18px}
.agent-row{display:flex;align-items:center;gap:12px;padding:13px;border-radius:12px;background:var(--card);margin-bottom:9px;border:1px solid var(--line);transition:.18s}
.agent-row:hover{border-color:var(--accent2);background:#1a1f29;transform:translateX(2px)}
.agent-logo{flex:0 0 42px;width:42px;height:42px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;color:#fff}
.agent-info{flex:1;min-width:0}
.agent-name{font-size:14px;font-weight:700;color:#fff}
.agent-slogan{font-size:11px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.agent-go{flex:0 0 auto;padding:8px 14px;border-radius:8px;background:rgba(120,115,245,.18);color:#cfc9ff;font-size:12px;font-weight:700}
.agent-row:hover .agent-go{background:var(--grad);color:#fff}
.modal-linkbox{padding:13px 14px;border-bottom:1px solid var(--line);background:#0e1117}
.modal-link-label{font-size:11px;color:var(--muted);margin-bottom:6px}
.modal-link-url{font-size:12px;color:#9fd0ff;word-break:break-all;background:#11151c;padding:9px;border-radius:8px;border:1px solid var(--line);max-height:64px;overflow:auto;line-height:1.5}
.modal-copy{margin-top:9px;padding:8px 15px;border:none;border-radius:8px;background:var(--panel);color:#fff;font-size:12px;cursor:pointer;border:1px solid var(--line)}
.modal-copy:hover{border-color:#39414e}
.modal-copy.ok{background:linear-gradient(135deg,#1f9d57,#16a34a);border-color:transparent}

@media(max-width:640px){
  .grid{grid-template-columns:repeat(2,1fr);gap:12px;padding:14px 10px}
  .card-title{height:48px}
  .card-actions{grid-template-columns:1fr}
  .chip{padding:7px 12px;font-size:12px}
  .hero{padding:44px 14px 28px}
  .hero-search input{padding:13px 16px 13px 42px}
  .brand .zh{letter-spacing:5px}
}