:root { color: #10233f; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif; background: #eff6ff; }
* { box-sizing: border-box; }
body { min-width: 320px; min-height: 100vh; margin: 0; background: radial-gradient(circle at 18% 8%, rgba(31,111,235,.2), transparent 30%), linear-gradient(145deg, #edf5ff, #fbfdff 62%, #e8f3ff); }
main { min-height: 100vh; display: grid; place-items: center; padding: 34px 20px 78px; }
.admin-card { width: min(100%, 480px); padding: clamp(28px, 5vw, 46px); border: 1px solid #d7e4f5; border-radius: 22px; background: rgba(255,255,255,.96); box-shadow: 0 30px 80px rgba(29,78,145,.16); }
.brand { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.brand img { width: 52px; height: 52px; object-fit: contain; }
.brand span { display: grid; gap: 2px; }
.brand strong { font-size: 21px; letter-spacing: .05em; }
.brand small { color: #6c82a0; font-size: 10px; letter-spacing: .14em; }
.admin-heading { display: flex; align-items: center; gap: 14px; margin-top: 34px; }
.admin-mark { width: 48px; height: 48px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 14px; color: white; background: linear-gradient(145deg, #166fe9, #0b4ec3); box-shadow: 0 12px 26px rgba(20,102,216,.22); font-size: 20px; font-weight: 850; }
.admin-heading div { display: grid; gap: 4px; }
.admin-heading small { color: #1763d5; font-size: 9px; font-weight: 850; letter-spacing: .15em; }
.admin-heading h1 { margin: 0; font-size: 27px; }
.admin-card > p { margin: 18px 0 24px; color: #667a95; font-size: 12px; line-height: 1.8; }
form { display: grid; gap: 9px; }
label { color: #304d70; font-size: 12px; font-weight: 750; }
input { width: 100%; height: 46px; margin-bottom: 8px; padding: 0 14px; border: 1px solid #cbd9ea; border-radius: 10px; outline: none; color: #10233f; background: #fbfdff; font-size: 15px; }
input:focus { border-color: #2f7be5; box-shadow: 0 0 0 3px rgba(47,123,229,.12); }
button { height: 46px; margin-top: 5px; border: 0; border-radius: 10px; color: white; background: linear-gradient(90deg, #1265e9, #1748dd); cursor: pointer; font-size: 14px; font-weight: 800; }
button:hover { background: linear-gradient(90deg, #0d55cb, #103dc2); }
.security-note { display: grid; gap: 5px; margin-top: 20px; padding: 13px 14px; border: 1px solid #d9e7f7; border-radius: 10px; color: #536b89; background: #f6f9fe; }
.security-note strong { color: #1b365c; font-size: 11px; }
.security-note span { font-size: 10px; line-height: 1.65; }
.form-error { margin: 0 0 16px; padding: 11px 13px; border: 1px solid #ffd1ce; border-radius: 9px; color: #a8453f; background: #fff1f0; font-size: 11px; line-height: 1.6; }
.back-link { display: block; margin-top: 18px; color: #47719f; text-align: center; text-decoration: none; font-size: 11px; }
footer { position: fixed; z-index: 10; bottom: 8px; left: 50%; display: flex; align-items: center; justify-content: center; gap: 12px; padding: 7px 13px; border: 1px solid rgba(15,23,42,.1); border-radius: 999px; background: rgba(255,255,255,.92); box-shadow: 0 4px 16px rgba(15,23,42,.07); transform: translateX(-50%); backdrop-filter: blur(10px); }
footer a { display: inline-flex; align-items: center; gap: 4px; color: #64748b; text-decoration: none; white-space: nowrap; font-size: 12px; }
footer .public-security-record img { width: 15px; height: 15px; }
@media (max-width: 620px) { footer { width: calc(100vw - 32px); flex-wrap: wrap; gap: 3px 10px; border-radius: 14px; } }