:root{
  --navy:#08283a;
  --navy-2:#0d364b;
  --gold:#c79a52;
  --ink:#17232b;
  --muted:#65727b;
  --paper:#f6f5f1;
  --surface:#ffffff;
  --line:#dfe3e5;
  --line-dark:#cbd1d4;
  --soft:#eef2f3;
  --focus:#8a5b16;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
}

*{box-sizing:border-box}
html{background:var(--paper);scroll-behavior:smooth}
body{min-width:320px;margin:0;overflow-x:hidden;color:var(--ink);background:var(--paper);font-family:var(--sans);-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}
button,a{color:inherit}
button{cursor:pointer}
.page-width{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:-70px;z-index:100;padding:10px 14px;color:#fff;background:var(--navy);text-decoration:none}
.skip-link:focus{top:12px}
:focus-visible{outline:3px solid rgba(138,91,22,.36);outline-offset:3px}

.site-nav{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:24px;height:88px;padding:12px 5vw;background:var(--navy);box-shadow:0 1px 0 rgba(255,255,255,.1)}
.brand{display:flex;flex:0 0 auto;align-items:center;text-decoration:none}
.brand img{display:block;width:auto;height:62px}
.nav-links{display:flex;align-items:center;min-width:0}
.nav-links a{margin-left:22px;color:#b9c7cd;font-size:13px;letter-spacing:1px;text-decoration:none;white-space:nowrap}
.nav-links a:hover,.nav-links a:focus-visible,.nav-links a[aria-current="page"]{color:#fff}
.nav-links a[aria-current="page"]{text-decoration:underline;text-decoration-color:var(--gold);text-underline-offset:9px}
.nav-links .nav-cta{padding:9px 19px;border-radius:999px;color:var(--navy);background:var(--gold);font-weight:700;text-decoration:none}

.directory-header{padding:58px 0 32px}
.directory-header h1{margin:0;font-size:40px;line-height:1.2;letter-spacing:.02em}
.directory-header>p{max-width:740px;margin:12px 0 0;color:var(--muted);font-size:15px;line-height:1.75}
.search-box{display:flex;align-items:center;gap:12px;width:min(760px,100%);height:56px;margin-top:28px;padding:0 16px;border:1px solid var(--line-dark);border-radius:8px;background:var(--surface);box-shadow:0 1px 2px rgba(8,40,58,.04)}
.search-box:focus-within{border-color:#9caab0;box-shadow:0 0 0 3px rgba(8,40,58,.08)}
.search-box svg{width:21px;height:21px;flex:0 0 auto;fill:none;stroke:#718087;stroke-linecap:round;stroke-width:1.8}
.search-box input{width:100%;height:52px;border:0;outline:0;color:var(--ink);background:transparent;font-size:15px}
.search-box input::placeholder{color:#99a2a7}
.search-box button{flex:0 0 auto;padding:7px 4px;border:0;background:transparent;color:var(--muted);font-size:13px}

.catalog{padding-bottom:76px}
.catalog-tabs{display:flex;gap:30px;border-bottom:1px solid var(--line)}
.catalog-tabs button{position:relative;padding:16px 2px 14px;border:0;background:none;color:var(--muted);font-size:18px;font-weight:650}
.catalog-tabs button span{margin-left:5px;color:#8a969c;font-size:13px;font-weight:500}
.catalog-tabs button[aria-selected="true"]{color:var(--ink)}
.catalog-tabs button[aria-selected="true"]::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:var(--navy)}

.filters{padding:18px 0 22px}
.industry-filters{display:flex;gap:8px;overflow-x:auto;padding:2px 1px 10px;scrollbar-width:thin}
.industry-filters button{flex:0 0 auto;padding:8px 13px;border:1px solid var(--line-dark);border-radius:999px;background:var(--surface);color:#4f5c63;font-size:13px;white-space:nowrap}
.industry-filters button:hover{border-color:#8c999e}
.industry-filters button[aria-pressed="true"]{border-color:var(--navy);color:#fff;background:var(--navy)}
.result-tools{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:8px}
.result-tools p{margin:0;color:var(--muted);font-size:13px}
.result-tools label{margin-left:auto;color:var(--muted);font-size:13px}
.result-tools select{height:38px;padding:0 34px 0 11px;border:1px solid var(--line-dark);border-radius:6px;color:var(--ink);background:var(--surface)}

.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.catalog-card{display:flex;min-height:230px;flex-direction:column;padding:22px;border:1px solid var(--line);border-radius:8px;background:var(--surface);text-align:left;box-shadow:0 1px 1px rgba(8,40,58,.02);transition:border-color .16s,box-shadow .16s}
.catalog-card:hover{border-color:#aeb8bc;box-shadow:0 4px 15px rgba(8,40,58,.07)}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.category{overflow:hidden;color:#6e7a80;font-size:12px;text-overflow:ellipsis;white-space:nowrap}
.card-arrow{color:#89959a;font-size:18px;line-height:1}
.catalog-card h3{margin:14px 0 0;font-size:21px;line-height:1.35}
.catalog-card>.summary{display:-webkit-box;min-height:47px;margin:9px 0 0;overflow:hidden;color:var(--muted);font-size:14px;line-height:1.65;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.card-facts{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:auto;padding-top:19px;border-top:1px solid #edf0f1}
.card-facts span{display:block;color:#89949a;font-size:11px}
.card-facts strong{display:block;margin-top:6px;color:var(--ink);font-size:14px;line-height:1.45;font-weight:650}
.card-facts>div:first-child strong{color:var(--focus)}

.empty-state{padding:80px 20px;text-align:center;border:1px solid var(--line);border-radius:8px;background:var(--surface)}
.empty-state h3{margin:0;font-size:22px}
.empty-state p{margin:10px 0 22px;color:var(--muted)}
.empty-state button{padding:10px 17px;border:0;border-radius:6px;color:#fff;background:var(--navy)}

.methodology{padding:0 0 70px}
.methodology details{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.methodology summary{padding:16px 0;color:var(--muted);font-size:13px;cursor:pointer}
.methodology details>div{max-width:880px;padding:0 0 22px;color:var(--muted);font-size:12px;line-height:1.8}
.methodology p{margin:0 0 8px}
.methodology a{color:var(--navy);text-underline-offset:3px}

.detail-dialog{width:min(760px,calc(100% - 32px));max-height:min(86vh,840px);padding:0;border:0;border-radius:10px;color:var(--ink);background:var(--surface);box-shadow:0 24px 80px rgba(4,24,35,.28)}
.detail-dialog::backdrop{background:rgba(3,21,31,.64)}
.dialog-close{position:sticky;top:14px;z-index:2;display:block;width:40px;height:40px;margin:14px 14px -54px auto;border:1px solid var(--line);border-radius:50%;color:#536169;background:#fff;font-size:28px;line-height:1}
.detail-dialog article{padding:42px 48px 48px}
.detail-heading{padding-right:44px}
.detail-heading .category{font-size:13px}
.detail-heading h2{margin:10px 0 0;font-size:34px;line-height:1.25}
.detail-heading p{margin:13px 0 0;color:var(--muted);font-size:15px;line-height:1.75}
.detail-key{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:26px}
.detail-key>div{padding:16px;border:1px solid var(--line);border-radius:7px;background:#fafbfa}
.detail-key span{display:block;color:#879299;font-size:11px}
.detail-key strong{display:block;margin-top:7px;color:var(--ink);font-size:17px;line-height:1.45}
.detail-key>div:first-child strong{color:var(--focus)}
.detail-sections{display:grid;grid-template-columns:1fr 1fr;gap:0 34px;margin:28px 0 0}
.detail-sections>div{padding:17px 0;border-top:1px solid var(--line)}
.detail-sections dt{color:#7b878c;font-size:12px}
.detail-sections dd{margin:7px 0 0;font-size:14px;line-height:1.7}
.try-box{margin-top:26px;padding:20px;border-radius:7px;background:var(--soft)}
.try-box span{display:block;color:#66757b;font-size:12px}
.try-box p{margin:8px 0 0;font-size:15px;line-height:1.7;font-weight:600}

footer{padding:52px 20px;color:#b6c3c8;background:var(--navy);text-align:center;font-size:13px}
footer img{display:block;width:min(300px,75vw);height:auto;margin:0 auto 15px}
footer p{margin:0}

@media(max-width:960px){
  .site-nav{height:66px;padding:9px 16px}
  .brand img{content:url("/assets/todo-shield.png");width:40px;height:40px;object-fit:contain}
  .nav-links{max-width:calc(100vw - 72px);gap:14px;overflow-x:auto;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links a{flex:0 0 auto;margin-left:0;font-size:11.5px;letter-spacing:.2px}
  .nav-links .nav-cta{display:none}
  .catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:640px){
  .page-width{width:calc(100% - 28px)}
  .nav-links{gap:11px}
  .nav-links a{font-size:11px}
  .directory-header{padding:34px 0 24px}
  .directory-header h1{font-size:31px}
  .directory-header>p{margin-top:9px;font-size:14px;line-height:1.65}
  .search-box{height:52px;margin-top:21px;padding:0 13px}
  .search-box input{height:48px;font-size:14px}
  .catalog-tabs{gap:25px}
  .catalog-tabs button{font-size:17px}
  .filters{padding-top:14px}
  .industry-filters{width:calc(100vw - 14px);padding-right:14px}
  .result-tools{align-items:center;margin-top:4px}
  .result-tools label{display:none}
  .result-tools select{height:36px;max-width:145px;font-size:13px}
  .catalog-grid{grid-template-columns:1fr;gap:10px}
  .catalog-card{min-height:205px;padding:19px}
  .catalog-card h3{font-size:20px}
  .card-facts{padding-top:16px}
  .methodology{padding-bottom:45px}
  .detail-dialog{inset:0;width:100vw;max-width:none;height:100dvh;max-height:none;margin:0;border-radius:0}
  .detail-dialog article{padding:30px 22px 36px}
  .dialog-close{top:12px;margin:12px 12px -52px auto}
  .detail-heading h2{font-size:29px}
  .detail-key,.detail-sections{grid-template-columns:1fr}
  .detail-sections{margin-top:22px}
  footer{padding-top:42px;padding-bottom:42px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.catalog-card{transition:none}}