/* 登录页样式 */
.login-body {
    background: var(--bg-main);
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 480px;
}

/* 左侧视觉区 */
.login-visual {
    background: linear-gradient(145deg, #0a1828 0%, #0d2240 50%, #091530 100%);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 60px 72px;
    position: relative;
    overflow: hidden;
}

.login-visual::before {
    content: '';
    position: absolute;
    top: -100px; right: -100px;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(26,111,186,0.15) 0%, transparent 70%);
    pointer-events: none;
}

.login-visual::after {
    content: '';
    position: absolute;
    bottom: -80px; left: -80px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(0,196,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.login-visual-brand { position: relative; z-index: 1; }

.login-visual-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 48px;
}

.login-visual-mark {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 900; color: #fff;
    clip-path: polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}

.login-visual-name { font-size: 20px; font-weight: 800; color: var(--text-white); line-height: 1.3; }
.login-visual-name span { color: var(--accent); display: block; font-size: 13px; font-weight: 400; color: var(--text-muted); }

.login-headline { font-size: 42px; font-weight: 900; color: var(--text-white); line-height: 1.15; margin-bottom: 20px; position: relative; z-index: 1; }
.login-headline em { font-style: normal; color: var(--accent); }

.login-desc { font-size: 15px; color: var(--text-muted); line-height: 1.8; max-width: 420px; position: relative; z-index: 1; }

.login-feature-list { display: flex; flex-direction: column; gap: 16px; position: relative; z-index: 1; }

.login-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.login-feature-dot {
    width: 8px; height: 8px;
    background: var(--primary);
    flex-shrink: 0;
    position: relative;
}
.login-feature-dot::after {
    content: '';
    position: absolute;
    inset: -3px;
    border: 1px solid rgba(26,111,186,0.4);
}

/* 右侧登录区 */
.login-form-area {
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 48px 48px 32px;
}

.login-form-top { flex: 1; display: flex; flex-direction: column; justify-content: center; }

.login-form-title { font-size: 26px; font-weight: 800; color: var(--text-white); margin-bottom: 8px; }
.login-form-subtitle { font-size: 14px; color: var(--text-muted); margin-bottom: 40px; }

.login-form-group { margin-bottom: 20px; }

.login-form-label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: .5px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.login-form-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-white);
    padding: 13px 16px;
    font-size: 15px;
    font-family: inherit;
    border-radius: var(--radius);
    outline: none;
    transition: all .2s;
}
.login-form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,111,186,0.2);
}
.login-form-input::placeholder { color: var(--text-muted); }

.login-submit-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border: none;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    letter-spacing: 1px;
    border-radius: var(--radius);
    transition: all .2s;
    margin-top: 8px;
}
.login-submit-btn:hover {
    opacity: .92;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(26,111,186,0.4);
}
.login-submit-btn:active { transform: none; }

.login-error {
    background: rgba(229,57,53,0.12);
    border: 1px solid rgba(229,57,53,0.3);
    color: #ff6b6b;
    padding: 12px 16px;
    font-size: 13px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.login-error::before { content: ''; width: 4px; height: 4px; background: #ff6b6b; flex-shrink: 0; }

.login-back {
    display: block;
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
}
.login-back a { color: var(--accent); font-weight: 600; }

.login-form-footer {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.8;
    border-top: 1px solid var(--border);
    padding-top: 20px;
}
.login-form-footer a { color: var(--text-muted); border-bottom: 1px solid rgba(74,109,142,0.3); }
.login-form-footer a:hover { color: var(--accent); }

@media (max-width: 900px) {
    .login-body { grid-template-columns: 1fr; }
    .login-visual { min-height: 260px; padding: 40px 32px; }
    .login-headline { font-size: 28px; }
    .login-form-area { padding: 40px 28px 24px; }
}