/* ========================================
   知晔星途 — 登录页 (demo-login-page-polish)
   左右分屏：左侧产品宣传 / 右侧登录框
   ======================================== */

/* ── 外层背景 ── */
body.login-page-bg {
    background: var(--canvas);
}

/* ── 顶部测试环境说明横幅 ── */
.login-top-banner {
    width: 100%;
    text-align: center;
    padding: 10px 16px;
    background: #fef2f2;
    border-bottom: 1px solid #fecaca;
    color: #991b1b;
    font-size: 13px;
    font-weight: 500;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

/* 登录视图：纵向堆叠 banner + container */
#view-login.active {
    flex-direction: column;
}

/* ── 容器：居中 max-width ── */
.login-container {
    display: flex;
    min-height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    background: var(--canvas);
}

/* ── 左半屏：产品宣传 ── */
.login-hero {
    flex: 1 1 0%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px 56px;
    background: linear-gradient(160deg, #f0f4ff 0%, #e8edfb 40%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}
.login-hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -80px;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(24,29,38,0.06) 0%, transparent 70%);
    border-radius: 50%;
}
.login-hero::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -40px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(37,99,235,0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.login-hero-logo {
    font-size: 48px;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}
.login-hero-brand {
    font-size: 32px;
    font-weight: 800;
    color: var(--ink);
    margin: 0 0 8px;
    position: relative;
    z-index: 1;
    letter-spacing: 2px;
}
.login-hero-tagline {
    font-size: 16px;
    font-weight: 600;
    color: var(--body);
    margin: 0 0 12px;
    position: relative;
    z-index: 1;
}
.login-hero-desc {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.8;
    max-width: 460px;
    margin: 0 0 32px;
    position: relative;
    z-index: 1;
}

/* ── 能力卡片 ── */
.login-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 36px;
    position: relative;
    z-index: 1;
}
.login-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--body);
    padding: 8px 0;
}
.login-feature-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 28px;
    text-align: center;
}
.login-feature-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 13px;
    color: var(--body);
    padding: 12px 14px;
    background: var(--surface-soft);
    border-radius: 8px;
    line-height: 1.6;
}
.login-feature-card .login-feature-icon {
    margin-top: 2px;
}
.login-feature-card .login-feature-text strong {
    color: var(--ink);
}
.login-feature-text {
    color: var(--text-secondary);
}

/* ── 演示提示 ── */
.login-demo-notice {
    padding: 12px 16px;
    background: var(--surface-soft);
    border-radius: 8px;
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.6;
    border: 1px solid var(--hairline);
    position: relative;
    z-index: 1;
    max-width: 460px;
}

/* ── 右半屏：登录框 ── */
.login-panel {
    flex: 0 1 480px;
    min-width: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}
.login-card {
    width: 380px;
    max-width: 90%;
}

.login-card-header {
    text-align: center;
    margin-bottom: 28px;
}
.login-card-header h2 {
    margin: 0 0 4px;
    font-size: 22px;
    color: var(--ink);
}
.login-card-subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

/* ── 表单 ── */
.login-form label {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
    font-size: 13px;
    color: var(--body);
}
.login-form .form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--hairline);
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 14px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}
.login-form .form-input:focus {
    outline: none;
    border-color: var(--info);
    box-shadow: 0 0 0 3px rgba(22,119,255,0.1);
}
.login-error {
    color: var(--error);
    font-size: 13px;
    margin-bottom: 12px;
    text-align: center;
}
.login-btn {
    width: 100%;
    padding: 12px;
    font-size: 15px;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    background: var(--primary);
    color: var(--on-primary);
    font-weight: 600;
    transition: background 0.2s;
}
.login-btn:hover { background: var(--primary-active); }
.login-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Demo 模式 ── */
.login-demo-mode {
    text-align: center;
    padding: 20px 0;
}
.login-demo-badge {
    display: inline-block;
    padding: 4px 14px;
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid var(--warning-border);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}
.login-demo-btn {
    display: block;
    width: 100%;
    padding: 12px;
    font-size: 15px;
    border-radius: 6px;
    cursor: pointer;
    border: 2px dashed var(--hairline);
    background: var(--canvas);
    color: var(--body);
    font-weight: 600;
    transition: all 0.2s;
}
.login-demo-btn:hover {
    border-color: var(--info);
    color: var(--info);
    background: var(--info-bg);
}
.login-demo-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* ── 效能对比 ── */
.login-compare {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}
.login-compare-card {
    flex: 1;
    padding: 14px;
    border-radius: 8px;
    font-size: 12px;
    line-height: 1.7;
}
.login-compare-card.old {
    background: #fef2f2;
    border: 1px solid #fecaca;
}
.login-compare-card.new {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
}
.login-compare-card .label {
    font-weight: 700;
    font-size: 12px;
    margin-bottom: 4px;
}
.login-compare-card.old .label { color: #dc2626; }
.login-compare-card.new .label { color: #16a34a; }

/* ── 引用语录 ── */
.login-testimonial {
    font-size: 12px;
    color: var(--muted);
    font-style: italic;
    line-height: 1.7;
    padding-left: 12px;
    border-left: 2px solid var(--hairline);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    max-width: 460px;
}
.login-testimonial .author {
    font-style: normal;
    color: var(--text-secondary);
    font-size: 11px;
    margin-top: 4px;
}

/* ── 即将上线标记 ── */
.login-coming-soon {
    display: inline-block;
    font-size: 10px;
    background: var(--warning-bg);
    color: var(--warning);
    padding: 1px 6px;
    border-radius: 4px;
    margin-left: 6px;
    font-weight: 600;
    vertical-align: middle;
}

/* ── 响应式：窄屏 ── */
@media (max-width: 768px) {
    .login-container {
        flex-direction: column;
    }
    .login-hero {
        flex: none;
        padding: 40px 28px 28px;
    }
    .login-hero::before,
    .login-hero::after { display: none; }
    .login-hero-brand { font-size: 26px; }
    .login-hero-desc { margin-bottom: 24px; }
    .login-features { margin-bottom: 24px; }
    .login-panel {
        flex: none;
        min-width: 0;
        padding: 20px 28px 48px;
    }
}