:root { color-scheme:light; font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif; color:#172033; background:#fff; --software-accent:#ee342d; scrollbar-width:thin; scrollbar-color:#ff821e #f1f1f1; }
* { box-sizing:border-box; }
body { margin:0; }
button,input { font:inherit; }
button,a,input { -webkit-tap-highlight-color:transparent; }
button { cursor:pointer; }
button:disabled { cursor:default; }
[hidden] { display:none !important; }
a { color:inherit; text-decoration:none; }
button:focus-visible,a:focus-visible,input:focus-visible { outline:3px solid #ffaaa6; outline-offset:4px; }
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }
.skip-link { position:fixed; top:10px; left:16px; z-index:100; padding:10px 16px; background:white; transform:translateY(-160%); }
.skip-link:focus { transform:none; }
.software-header { font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif; }
.software-header .nav-link { position:relative; transition:all .3s ease; }
.scroll-indicator { position:fixed; top:0; left:0; width:100%; height:4px; background:rgba(255,107,107,.2); z-index:9999; }
.scroll-progress { height:100%; background:linear-gradient(90deg,#9e69fc 0%,#fe4685 54.33%,#ff821e 100%); width:0; transition:width .1s ease; }
.software-main { max-width:1280px; margin:auto; padding:106px 32px 0; min-height:calc(100vh - 101px); }
.software-heading { display:flex; align-items:center; justify-content:space-between; gap:24px; margin-bottom:32px; }
.software-heading h1 { font-size:32px; font-weight:700; letter-spacing:-.03em; line-height:1.4; margin:0; color:#111827; }
.software-search { display:flex; align-items:center; width:304px; border-radius:28px; border:1px solid transparent; background:#f5f6f8; padding:0 14px; }
.software-search:focus-within { border-color:#ffb6b1; background:#fff; }
.software-search button { display:flex; align-items:center; border:0; background:transparent; padding:10px 8px 10px 0; color:#7b8390; }
.software-search svg { width:21px; height:21px; }
.software-search input { min-width:0; width:100%; height:44px; border:0; outline:none; background:transparent; font-size:14px; color:#172033; }
.software-search input::placeholder { color:#9098a5; }
.software-layout { display:grid; grid-template-columns:192px minmax(0,1fr); gap:26px; align-items:start; }
.software-sidebar { padding:8px; }
.category-button { width:100%; display:flex; align-items:center; gap:14px; min-height:52px; border:0; border-radius:9px; background:transparent; padding:10px 12px; text-align:left; font-size:16px; color:#596273; white-space:nowrap; }
.category-button svg { width:23px; height:23px; flex-shrink:0; }
.category-button:hover { background:#f0f1f4; color:#192133; }
.category-button[aria-pressed="true"] { background:#fff0f0; color:var(--software-accent); font-weight:600; }
.category-loading,.category-error { color:#7b8390; font-size:13px; padding:12px; }
.category-error button { color:var(--software-accent); margin-top:8px; background:transparent; border:0; }
.software-results { min-width:0; scroll-margin-top:100px; }
.results-heading { display:flex; align-items:baseline; flex-wrap:wrap; justify-content:space-between; gap:6px 14px; margin:0 0 18px; min-height:30px; }
.results-heading h2 { margin:0; font-size:21px; font-weight:650; color:#111827; }
.results-heading p { color:#8b93a0; font-size:13px; margin:0; }
.software-grid { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:20px 18px; }
.software-card { min-width:0; border:1px solid #e5e7eb; border-radius:10px; padding:24px 12px 16px; text-align:center; background:#fff; transition:box-shadow .18s,border-color .18s; }
.software-card:hover,.software-card:focus-within { border-color:#d8dce2; box-shadow:0 5px 18px rgba(26,35,54,.09); }
.software-icon { width:56px; height:56px; margin:0 auto 13px; display:flex; align-items:center; justify-content:center; border-radius:12px; background:#f5f6f8; color:#9ba2ae; font-size:24px; }
.software-icon img { width:100%; height:100%; object-fit:contain; border-radius:12px; }
.software-card h3 { font-size:15px; font-weight:500; line-height:22px; margin:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:#172033; }
.software-description { height:18px; line-height:18px; margin:5px 0 0; font-size:12px; color:#8a92a0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.software-rating { position:relative; display:inline-block; color:#e0e2e6; font-size:14px; letter-spacing:1px; height:18px; line-height:18px; margin-top:5px; }
.software-rating-fill { position:absolute; inset:0 auto 0 0; overflow:hidden; white-space:nowrap; color:#515968; }
.software-card-action { position:relative; margin-top:7px; min-height:32px; display:flex; align-items:center; justify-content:center; }
.software-downloads { font-size:12px; line-height:32px; color:#959daa; white-space:nowrap; }
.software-download { border:0; background:#ff3b30; color:#fff; font-size:13px; line-height:20px; padding:6px 20px; border-radius:20px; white-space:nowrap; }
.software-download:hover { background:#eb3027; }
.software-download:disabled { background:#f1f2f4; color:#9299a4; }
.software-downloads + .software-download { position:absolute; opacity:0; pointer-events:none; }
.software-card:hover .software-downloads,.software-card:focus-within .software-downloads,.software-card.is-downloading .software-downloads { visibility:hidden; }
.software-card:hover .software-download,.software-card:focus-within .software-download,.software-card.is-downloading .software-download { opacity:1; pointer-events:auto; }
.software-state { min-height:350px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:16px; text-align:center; color:#8b93a0; font-size:14px; }
.software-state p { margin:0; }
.state-button { border:1px solid #e0e3e8; border-radius:20px; background:white; padding:8px 20px; color:#566071; }
.loading-spinner { width:24px; height:24px; border:2px solid #f0e3e2; border-top-color:#ff3b30; border-radius:50%; animation:software-spin .8s linear infinite; }
@keyframes software-spin { to { transform:rotate(360deg); } }
.software-more { min-height:56px; display:flex; justify-content:center; align-items:center; flex-wrap:wrap; gap:12px; margin-top:24px; color:#969daa; font-size:13px; }
.software-more p { margin:0; }
.software-more .loading-spinner { width:18px; height:18px; }
.software-footer { display:flex; justify-content:center; gap:12px; padding:36px 20px 24px; color:#969daa; font-size:12px; }
.software-footer a:hover { color:#566071; }
.software-notice { position:fixed; z-index:60; bottom:28px; left:50%; transform:translateX(-50%); padding:12px 22px; border:1px solid #eee; border-radius:10px; box-shadow:0 5px 25px #0001; background:white; color:#be342e; font-size:14px; max-width:calc(100vw - 32px); text-align:center; }
@media(max-width:1150px) {
    .software-grid { grid-template-columns:repeat(4,minmax(0,1fr)); }
    .software-layout { grid-template-columns:180px minmax(0,1fr); gap:22px; }
}
@media(max-width:900px) { .software-grid { grid-template-columns:repeat(3,minmax(0,1fr)); } }
@media(max-width:700px) {
    .software-main { padding:90px 16px 0; }
    .software-heading { display:block; margin-bottom:22px; }
    .software-heading h1 { font-size:27px; margin-bottom:18px; }
    .software-search { width:100%; }
    .software-layout { display:block; }
    .software-sidebar { padding:6px; margin-bottom:24px; }
    #software-categories { display:flex; flex-wrap:wrap; gap:4px; }
    .category-button { width:auto; flex-shrink:0; min-height:40px; padding:8px 12px; font-size:14px; gap:7px; }
    .category-button svg { width:18px; height:18px; }
    .software-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
    .software-card { padding:22px 12px 16px; }
    .results-heading h2 { font-size:20px; }
    .software-state { min-height:260px; }
}
@media(hover:none),(max-width:700px) {
    .software-card-action { flex-direction:column; gap:6px; }
    .software-downloads + .software-download { position:static; opacity:1; pointer-events:auto; }
    .software-card .software-downloads { visibility:visible; line-height:22px; }
}
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { animation:none !important; transition:none !important; } }