* { box-sizing: border-box; }
body { margin: 0; background: #f5f7fa; color: #172b45; font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif; }
a { color: inherit; }
.catalog { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 48px; }
.catalog-header { display: flex; align-items: center; justify-content: space-between; padding: 30px 0; border-bottom: 1px solid #dce3eb; }
.brand { display: flex; align-items: center; text-decoration: none; font-weight: 700; font-size: 20px; }
.brand img { width: 43px; height: auto; margin-right: 16px; }
.brand-light { font-weight: 400; color: #6f7f92; font-size: 16px; }
.catalog-label { color: #6f7f92; font-size: 13px; }
.intro { position: relative; padding: 64px 0 44px; }
.eyebrow { color: #317e73; font-size: 13px; font-weight: 600; letter-spacing: 4px; margin: 0 0 18px; }
h1 { font-size: 42px; line-height: 1.4; letter-spacing: 1px; margin: 0 0 14px; }
.intro-text { color: #6b7b8d; font-size: 16px; margin: 0; line-height: 1.8; }
.app-count { display: inline-block; margin-top: 24px; background: #e6edf5; padding: 7px 12px; border-radius: 6px; color: #4d6076; font-size: 12px; }
.app-grid { list-style: none; padding: 0; margin: 0 -12px; display: flex; flex-wrap: wrap; }
.app-card { width: 33.3333%; padding: 0 12px; margin-bottom: 24px; }
.app-card a { display: block; position: relative; background: #fff; border: 1px solid #e1e7ee; border-radius: 14px; padding: 30px; min-height: 280px; text-decoration: none; transition: border-color .2s, box-shadow .2s; }
.app-card a:hover, .app-card a:focus { border-color: #317e73; box-shadow: 0 6px 24px rgba(27, 53, 80, .08); }
.app-card a:focus { outline: 2px solid #317e73; outline-offset: 4px; }
.app-number { display: inline-block; color: #317e73; background: #eaf3f0; padding: 8px 10px; border-radius: 7px; font-size: 17px; font-weight: 700; }
.app-name { color: #93a0af; font-size: 11px; margin-left: 12px; word-break: break-all; }
h2 { font-size: 21px; line-height: 1.5; margin: 24px 0 10px; }
.app-card p { color: #728093; font-size: 13px; line-height: 1.9; margin: 0 0 25px; min-height: 48px; }
.app-open { display: block; border-top: 1px solid #edf0f4; padding-top: 18px; font-size: 13px; font-weight: 600; }
.app-open span { float: right; color: #317e73; font-size: 17px; }
.empty { padding: 40px; background: #fff; border: 1px dashed #cbd5e0; border-radius: 12px; color: #6f7f92; text-align: center; }
footer { color: #9aa5b3; font-size: 12px; padding: 32px 0; margin-top: 32px; border-top: 1px solid #dce3eb; }
@media (max-width: 960px) { .app-card { width: 50%; } }
@media (max-width: 600px) { .catalog { padding: 0 22px; } .catalog-label { display: none; } .intro { padding-top: 40px; } h1 { font-size: 30px; } .app-card { width: 100%; } .brand-light { font-size: 14px; } }