/* ========================================
   企业经营诊断 - 独立应用样式
   包含：全局基础 + 导航 + 按钮 + 页脚 + 诊断专用
   ======================================== */

/* CSS Variables */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a68;
    --text-muted: #8b8ba3;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --accent-glow: rgba(99, 102, 241, 0.25);
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.15);
    --font-primary: 'Noto Sans SC', 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ========== Animations ========== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(1.2); }
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== Navigation ========== */
.diagnosis-page .navbar {
    background: rgba(10, 10, 20, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: none;
}
.diagnosis-page .navbar .logo-text { color: #fff; }
.diagnosis-page .navbar .nav-link { color: rgba(255, 255, 255, 0.6); }
.diagnosis-page .navbar .nav-link:hover,
.diagnosis-page .navbar .nav-link.active { color: #fff; }
.diagnosis-page .navbar .btn-ghost { color: rgba(255, 255, 255, 0.7); }
.diagnosis-page .navbar .btn-ghost:hover { color: #fff; }
.diagnosis-page .navbar .mobile-menu-btn span { background: #fff; }

.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: #ffffff; backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 1280px; margin: 0 auto; padding: 16px 24px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; }
.logo-icon { color: var(--accent-primary); font-size: 1.5rem; }
.nav-links { display: flex; gap: 32px; }
.nav-link { color: var(--text-secondary); font-weight: 500; position: relative; padding: 8px 0; }
.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 0; height: 2px; background: var(--accent-gradient);
    transition: width var(--transition-normal);
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--text-primary); transition: var(--transition-fast); }

/* ========== Buttons ========== */
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; background: var(--accent-gradient); color: white;
    font-weight: 600; border-radius: var(--radius-md); transition: all var(--transition-normal); border: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-ghost {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; color: var(--text-secondary); font-weight: 500;
    transition: color var(--transition-fast);
}
.btn-ghost:hover { color: var(--text-primary); }
.btn-secondary {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 18px; background: var(--bg-tertiary); border: 1px solid var(--border-color);
    border-radius: var(--radius-md); color: var(--text-secondary);
    font-size: 14px; font-weight: 500; cursor: pointer; transition: all var(--transition-fast);
}
.btn-secondary:hover { border-color: var(--accent-primary); color: var(--accent-primary); background: rgba(99, 102, 241, 0.08); }
.btn-large { padding: 16px 32px; font-size: 1.1rem; }
.btn-full { width: 100%; }
.btn-small { padding: 8px 16px; font-size: 0.875rem; }

/* ========== Footer ========== */
.footer { padding: 60px 0 30px; background: #1a1a2e; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { color: rgba(255, 255, 255, 0.6); margin: 0; font-size: 0.9rem; line-height: 1.6; }
.footer-links h4 { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255, 255, 255, 0.6); font-size: 0.9rem; transition: color var(--transition-fast); }
.footer-links a:hover { color: #fff; }
.footer-email-display { display: inline-flex; align-items: center; gap: 10px; color: var(--text-muted); font-size: 14px; }
.footer-email-display span { color: rgba(255, 255, 255, 0.7); }
.footer-divider { height: 1px; background: rgba(255, 255, 255, 0.1); margin-bottom: 24px; }
.footer-bottom { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-bottom p, .footer-bottom a { color: rgba(255, 255, 255, 0.4); font-size: 0.8rem; margin: 0; }
.footer-bottom a:hover { color: rgba(255, 255, 255, 0.7); }

/* ========================================
   诊断页面 - Hero (OPC Globe 风格)
   ======================================== */
.diag-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
    background: #08080f;
}

.globe-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: auto;
    z-index: 0;
}

.diag-hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    z-index: 2;
}

.diag-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 100px;
    font-size: 0.8rem;
    color: #a5b4fc;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease;
    letter-spacing: 0.05em;
}

.diag-badge .badge-dot {
    width: 7px; height: 7px;
    background: #818cf8;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.diag-hero-title {
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 900;
    color: #ffffff;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.diag-hero-title em {
    font-style: normal;
    background: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #c084fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.diag-hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.9;
    max-width: 580px;
    margin: 0 auto 40px;
    font-weight: 300;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.diag-hero-cta {
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: var(--accent-gradient);
    color: white;
    font-weight: 700;
    font-size: 1.05rem;
    border-radius: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 24px rgba(99, 102, 241, 0.35);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 36px rgba(99, 102, 241, 0.5);
}

.diag-hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.diag-stat { text-align: center; }

.diag-stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #818cf8, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.diag-stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.35);
    margin-top: 4px;
    letter-spacing: 0.03em;
}

.diag-stat-divider {
    width: 1px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
}

/* ========================================
   诊断页面 - Upload
   ======================================== */
.diag-upload-section { padding: 80px 0 60px; background: var(--bg-primary); margin-top: -40px; position: relative; z-index: 2; }
.diag-upload-card {
    max-width: 720px; margin: 0 auto; background: var(--bg-card);
    border: 1px solid var(--border-color); border-radius: var(--radius-xl);
    padding: 48px 40px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}
.diag-upload-header { text-align: center; margin-bottom: 32px; }
.diag-upload-icon-wrap {
    width: 72px; height: 72px; margin: 0 auto 20px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(99, 102, 241, 0.1); border-radius: 20px; color: var(--accent-primary);
}
.diag-upload-header h2 { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.diag-upload-header p { font-size: 0.95rem; color: var(--text-secondary); }

.diag-dropzone {
    border: 2px dashed var(--border-color); border-radius: var(--radius-lg);
    padding: 48px 32px; text-align: center; transition: all var(--transition-normal);
    cursor: pointer; background: var(--bg-secondary);
}
.diag-dropzone:hover, .diag-dropzone.dragover { border-color: var(--accent-primary); background: rgba(99, 102, 241, 0.04); }
.diag-dropzone.dragover { transform: scale(1.01); box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1); }
.diag-dropzone-content { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.diag-dropzone-icon { color: var(--text-muted); margin-bottom: 8px; }
.diag-dropzone-text { font-size: 1rem; color: var(--text-secondary); }
.diag-browse-btn { margin-top: 4px; }
.diag-dropzone-hint { font-size: 0.8rem; color: var(--text-muted); margin-top: 8px; }

/* File list */
.diag-file-list { margin-top: 24px; padding: 20px; background: var(--bg-secondary); border-radius: var(--radius-md); }
.diag-file-list h4 { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: 600; color: var(--text-primary); margin-bottom: 12px; }
.diag-file-list h4 svg { color: var(--accent-primary); }
.diag-file-list ul { list-style: none; }
.diag-file-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px; background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); margin-bottom: 8px; transition: all var(--transition-fast);
}
.diag-file-item:last-child { margin-bottom: 0; }
.diag-file-info { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.diag-file-type-icon {
    width: 36px; height: 36px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; font-weight: 700; color: white; flex-shrink: 0;
}
.diag-file-type-icon.xlsx { background: #217346; }
.diag-file-type-icon.xls  { background: #217346; }
.diag-file-type-icon.csv  { background: #f59e0b; }
.diag-file-type-icon.pdf  { background: #ef4444; }
.diag-file-type-icon.doc  { background: #2b579a; }
.diag-file-type-icon.docx { background: #2b579a; }
.diag-file-type-icon.txt  { background: #6b7280; }
.diag-file-type-icon.other { background: #8b5cf6; }
.diag-file-name { font-size: 0.875rem; font-weight: 500; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.diag-file-size { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.diag-file-remove {
    width: 28px; height: 28px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); cursor: pointer; transition: all var(--transition-fast); flex-shrink: 0;
}
.diag-file-remove:hover { background: rgba(239, 68, 68, 0.1); color: var(--error); }

/* Action bar */
.diag-action-bar { margin-top: 28px; text-align: center; }
.diag-analyze-btn { padding: 16px 48px; font-size: 1.05rem; }
.diag-action-hint { margin-top: 12px; font-size: 0.8rem; color: var(--text-muted); }

/* Progress */
.diag-progress { margin-top: 32px; padding: 28px; background: var(--bg-secondary); border-radius: var(--radius-lg); }
.diag-progress-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.diag-progress-spinner {
    width: 24px; height: 24px; border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary); border-radius: 50%; animation: spin 0.8s linear infinite;
}
.diag-progress-header span { font-size: 0.95rem; font-weight: 500; color: var(--text-primary); }
.diag-progress-bar { height: 6px; background: var(--bg-tertiary); border-radius: 100px; overflow: hidden; margin-bottom: 24px; }
.diag-progress-fill { height: 100%; background: var(--accent-gradient); border-radius: 100px; width: 0%; transition: width 0.5s ease; }
.diag-progress-steps { display: flex; justify-content: space-between; }
.diag-step { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--text-muted); transition: color var(--transition-fast); }
.diag-step.active { color: var(--accent-primary); font-weight: 600; }
.diag-step.done { color: var(--success); }
.diag-step-dot { width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--border-color); transition: all var(--transition-fast); }
.diag-step.active .diag-step-dot { border-color: var(--accent-primary); background: var(--accent-primary); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2); }
.diag-step.done .diag-step-dot { border-color: var(--success); background: var(--success); }

/* Result */
.diag-result { margin-top: 32px; }
.diag-result-header { text-align: center; margin-bottom: 28px; }
.diag-result-icon {
    width: 56px; height: 56px; margin: 0 auto 16px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(16, 185, 129, 0.1); border-radius: 50%; color: var(--success);
}
.diag-result-header h3 { font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.diag-result-header p { font-size: 0.9rem; color: var(--text-secondary); }
.diag-result-content {
    padding: 24px; background: var(--bg-secondary); border-radius: var(--radius-lg);
    margin-bottom: 24px; font-size: 0.95rem; line-height: 1.8; color: var(--text-primary); min-height: 200px;
}
.diag-result-actions { display: flex; gap: 12px; justify-content: center; }

/* ========================================
   诊断页面 - Features
   ======================================== */
.diag-features-section { padding: 80px 0; background: var(--bg-secondary); }
.diag-section-title { text-align: center; font-size: 2rem; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; }
.diag-section-desc { text-align: center; font-size: 1rem; color: var(--text-secondary); margin-bottom: 48px; }
.diag-features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.diag-feature-card {
    padding: 32px; background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); transition: all var(--transition-normal);
}
.diag-feature-card:hover { border-color: var(--accent-primary); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.diag-feature-icon {
    width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
    background: rgba(99, 102, 241, 0.1); border-radius: var(--radius-md); margin-bottom: 20px; color: var(--accent-primary);
}
.diag-feature-card h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-primary); margin-bottom: 10px; }
.diag-feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* ========================================
   诊断页面 - Flow
   ======================================== */
.diag-flow-section { padding: 80px 0; background: var(--bg-primary); }
.diag-flow-grid { display: flex; align-items: flex-start; justify-content: center; gap: 16px; margin-top: 48px; }
.diag-flow-item { text-align: center; max-width: 260px; flex: 1; }
.diag-flow-number {
    font-size: 2.5rem; font-weight: 900;
    background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; margin-bottom: 16px; opacity: 0.3;
}
.diag-flow-icon {
    width: 72px; height: 72px; margin: 0 auto 20px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(99, 102, 241, 0.08); border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 50%; color: var(--accent-primary); transition: all var(--transition-normal);
}
.diag-flow-item:hover .diag-flow-icon {
    background: var(--accent-gradient); border-color: transparent; color: white;
    transform: scale(1.08); box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}
.diag-flow-item h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }
.diag-flow-item p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }
.diag-flow-arrow { display: flex; align-items: center; padding-top: 80px; color: var(--text-muted); opacity: 0.4; flex-shrink: 0; }

/* ========================================
   诊断页面 - Trust
   ======================================== */
.diag-trust-section { padding: 40px 0 60px; background: var(--bg-primary); }
.diag-trust-grid { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.diag-trust-item { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.diag-trust-item svg { color: var(--accent-primary); opacity: 0.6; }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .diag-features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .mobile-menu-btn { display: flex; }

    .diag-hero { padding: 120px 20px 60px; min-height: 80vh; }
    .diag-hero-title { font-size: 2.5rem; }
    .diag-hero-subtitle { font-size: 0.95rem; }
    .diag-hero-stats { gap: 24px; }
    .diag-stat-value { font-size: 1.5rem; }
    .diag-upload-card { padding: 32px 20px; }
    .diag-dropzone { padding: 32px 20px; }
    .diag-features-grid { grid-template-columns: 1fr; }
    .diag-flow-grid { flex-direction: column; align-items: center; gap: 24px; }
    .diag-flow-arrow { transform: rotate(90deg); padding-top: 0; }
    .diag-progress-steps { flex-wrap: wrap; gap: 12px; }
    .diag-trust-grid { flex-direction: column; align-items: center; gap: 16px; }
    .diag-result-actions { flex-direction: column; }
    .diag-result-actions .btn-primary, .diag-result-actions .btn-secondary { width: 100%; }

    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
    .diag-hero { padding: 100px 16px 50px; min-height: 70vh; }
    .diag-hero-title { font-size: 2rem; }
    .btn-hero-primary { padding: 14px 28px; font-size: 0.95rem; width: 100%; justify-content: center; }
    .diag-upload-section { padding: 60px 0 40px; }
    .diag-features-section, .diag-flow-section { padding: 60px 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .diag-key-input-area { flex-direction: column; }
    .diag-contact-items { flex-direction: column; }
}

/* ========== 联系方式卡片 ========== */
.diag-contact-card {
    max-width: 720px; margin: 0 auto 20px; background: linear-gradient(135deg, rgba(99,102,241,0.06), rgba(139,92,246,0.06));
    border: 1px solid rgba(99,102,241,0.2); border-radius: var(--radius-xl); padding: 24px 28px;
}
.diag-contact-inner { display: flex; gap: 16px; align-items: flex-start; }
.diag-contact-icon {
    width: 52px; height: 52px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
    background: rgba(99,102,241,0.1); border-radius: 14px; color: var(--accent-primary);
}
.diag-contact-text h3 { font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.diag-contact-text p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 10px; }
.diag-contact-items { display: flex; gap: 20px; flex-wrap: wrap; }
.diag-contact-item {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.85rem; font-weight: 500; color: var(--accent-primary);
}
.diag-contact-item svg { color: var(--accent-primary); opacity: 0.7; }

/* ========== Key 输入 ========== */
.diag-key-input-area { display: flex; gap: 12px; align-items: center; justify-content: center; }
.diag-key-input {
    width: 260px; padding: 14px 18px; font-size: 1rem; font-weight: 600; text-align: center; letter-spacing: 2px;
    border: 2px solid var(--border-color); border-radius: var(--radius-md); background: var(--bg-secondary);
    color: var(--text-primary); transition: all var(--transition-fast); text-transform: uppercase;
}
.diag-key-input:focus { outline: none; border-color: var(--accent-primary); background: var(--bg-primary); }
.diag-key-input::placeholder { letter-spacing: 0; font-weight: 400; font-size: 0.85rem; text-transform: none; }
.diag-key-error {
    text-align: center; margin-top: 12px; font-size: 0.85rem; color: var(--error); font-weight: 500;
}

/* ========== 公司面板 ========== */
.diag-company-header {
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 16px; border-bottom: 1px solid var(--border-color); margin-bottom: 8px;
}
.diag-company-info h2 { font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.diag-company-info p { font-size: 0.85rem; color: var(--text-secondary); }
.diag-company-info strong { color: var(--accent-primary); font-size: 1.1rem; }