:root {
    --login-blue: #2563eb;
    --login-navy: #172554;
    --login-border: #e4e8ef;
    --login-muted: #6b7280;
}

* { box-sizing: border-box; }

body.login-page {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
    color: #1f2937;
    background:
        radial-gradient(circle at 12% 18%, rgba(37, 99, 235, .11), transparent 30%),
        radial-gradient(circle at 92% 85%, rgba(59, 130, 246, .08), transparent 26%),
        #f5f7fb;
}

.login-shell {
    width: min(1080px, calc(100% - 48px));
    flex: 1;
    margin: 0 auto;
    padding: 56px 0;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) 430px;
    gap: 72px;
    align-items: center;
}

.login-brand { padding: 20px 8px; }
.login-brand__mark {
    width: 54px; height: 54px; border-radius: 16px;
    background: #e9f1ff; color: var(--login-blue);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; margin-bottom: 24px;
}
.login-brand__eyebrow { color: var(--login-blue); font-size: 12px; font-weight: 800; letter-spacing: 2.5px; }
.login-brand h1 { margin: 12px 0 18px; color: var(--login-navy); font-size: 38px; line-height: 1.25; }
.login-brand p { max-width: 590px; margin: 0; color: var(--login-muted); font-size: 16px; line-height: 1.9; }
.login-brand__features { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.login-brand__features span { padding: 9px 12px; border: 1px solid #dbe5f3; border-radius: 10px; background: rgba(255,255,255,.75); color: #41536f; font-size: 13px; }
.login-brand__features i { margin-right: 7px; color: var(--login-blue); }

.login-card {
    padding: 32px;
    border: 1px solid var(--login-border);
    border-radius: 18px;
    background: rgba(255,255,255,.96);
    box-shadow: 0 24px 70px rgba(15, 23, 42, .11);
}
.login-card__head h2 { margin: 0; color: #111827; font-size: 25px; }
.login-card__head p { margin: 8px 0 0; color: #8a94a4; font-size: 13px; }
.login-alert { margin-top: 18px; padding: 11px 13px; border-radius: 9px; background: #fff1f2; color: #b42318; font-size: 13px; }
.login-alert i { margin-right: 7px; }

.login-tabs { margin: 24px 0 22px; padding: 4px; border-radius: 10px; background: #f3f5f8; display: grid; grid-template-columns: 1fr 1fr; }
.login-tab { height: 38px; border: 0; border-radius: 8px; background: transparent; color: #7a8494; font: inherit; cursor: pointer; }
.login-tab.is-active { background: #fff; color: #1f3b70; font-weight: 700; box-shadow: 0 2px 8px rgba(15,23,42,.07); }

.login-form { display: grid; gap: 16px; }
.login-form.is-hidden { display: none; }
.login-form label > span { display: block; margin-bottom: 7px; color: #4b5563; font-size: 13px; font-weight: 600; }
.login-input { height: 46px; padding: 0 13px; border: 1px solid #d9dee7; border-radius: 10px; display: flex; align-items: center; gap: 10px; background: #fff; }
.login-input:focus-within { border-color: #7ca4f7; box-shadow: 0 0 0 3px rgba(37,99,235,.08); }
.login-input i { width: 16px; color: #a0a8b5; text-align: center; }
.login-input input { min-width: 0; flex: 1; border: 0; outline: 0; background: transparent; color: #111827; font: inherit; font-size: 14px; }

.login-submit, .guest-submit { width: 100%; height: 46px; border-radius: 10px; font: inherit; font-size: 14px; font-weight: 700; cursor: pointer; }
.login-submit { margin-top: 2px; border: 1px solid var(--login-blue); background: var(--login-blue); color: #fff; }
.login-submit:hover { background: #1d4ed8; }
.guest-submit { border: 1px solid #d9dee7; background: #fff; color: #344054; }
.guest-submit:hover { border-color: #aab6c7; background: #f8fafc; }
.guest-submit i { margin-right: 8px; }
.login-divider { margin: 22px 0; display: flex; align-items: center; gap: 12px; color: #a5adba; font-size: 12px; }
.login-divider::before, .login-divider::after { content: ""; height: 1px; flex: 1; background: #edf0f4; }
.login-note { margin: 11px 0 0; color: #98a1af; text-align: center; font-size: 11px; }

@media (max-width: 860px) {
    .login-shell { width: min(520px, calc(100% - 30px)); grid-template-columns: 1fr; gap: 24px; padding: 30px 0; }
    .login-brand { padding: 0 6px; }
    .login-brand h1 { font-size: 30px; }
    .login-brand p, .login-brand__features { display: none; }
    .login-brand__mark { margin-bottom: 16px; }
}

/* ICP备案信息 */
.login-footer {
    flex: 0 0 auto;
    padding: 0 16px 18px;
    text-align: center;
    font-size: 12px;
    line-height: 1.6;
}

.login-footer a {
    color: #7b8492;
    text-decoration: none;
}

.login-footer a:hover {
    color: #374151;
    text-decoration: underline;
}