/* ========================================
   税康AI - 税务健康自检平台
   样式表
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #10b981;
    --accent-dark: #059669;
    --warning: #f59e0b;
    --danger: #ef4444;
    --danger-dark: #dc2626;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-card: #ffffff;
    --text: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.06);
    --shadow-xl: 0 25px 60px rgba(0,0,0,0.10);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(37, 99, 235, 0.08);
    padding: 6px 16px;
    border-radius: 50px;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--text);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.highlight {
    color: var(--primary);
}

a {
    text-decoration: none;
    color: inherit;
}

.desktop-only {
    display: block;
}

/* ---------- Navigation ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text);
}

.nav-links a:hover::after {
    width: 100%;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(37,99,235,0.3);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
    color: var(--text);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 140px 0 80px;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
}

.hero-bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    opacity: 0.4;
}

.glow-1 {
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: rgba(37,99,235,0.15);
}

.glow-2 {
    bottom: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    background: rgba(16,185,129,0.1);
}

.hero-inner {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(37,99,235,0.08);
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: 3.75rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
}

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: white;
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(37,99,235,0.35);
}

.btn-hero-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37,99,235,0.4);
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    color: var(--text);
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid var(--border);
    transition: var(--transition);
}

.btn-hero-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
}

.stat-unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ---------- Risk Bar ---------- */
.risk-bar {
    background: #fffbeb;
    border-top: 1px solid #fde68a;
    border-bottom: 1px solid #fde68a;
    padding: 12px 0;
}

.risk-scroll {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.risk-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.risk-tag.critical {
    background: var(--danger);
    color: white;
}

.risk-text {
    font-size: 0.9rem;
    color: #92400e;
    font-weight: 500;
}

/* ---------- Steps ---------- */
.steps-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}

.step-card {
    flex: 1;
    max-width: 340px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.step-number {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    width: 36px;
    height: 24px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(37,99,235,0.3);
}

.step-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.step-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-tip {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--accent-dark);
    font-weight: 500;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-light);
    padding: 60px 16px 0;
    font-weight: 300;
}

/* ---------- Risk Cards ---------- */
.risks-section {
    background: var(--bg-alt);
}

.risks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.risk-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: var(--transition);
}

.risk-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.risk-card-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.risk-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.risk-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.risk-severity {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.severity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.severity-dot.red {
    background: var(--danger);
}

.severity-dot.orange {
    background: var(--warning);
}

/* ---------- Upload Section ---------- */
.upload-section {
    background: linear-gradient(180deg, var(--bg) 0%, #f0f7ff 100%);
}

.upload-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--text);
}

.label-tip {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    color: var(--text);
    background: var(--bg);
}

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

/* File Dropzone */
.file-dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px 24px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: var(--bg-alt);
}

.file-dropzone:hover,
.file-dropzone.drag-over {
    border-color: var(--primary);
    background: rgba(37,99,235,0.03);
}

.dropzone-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.dropzone-text {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.dropzone-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-preview {
    text-align: left;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-alt);
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.file-icon {
    font-size: 1.5rem;
}

.file-name {
    flex: 1;
    font-weight: 500;
    font-size: 0.95rem;
}

.file-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px;
    transition: var(--transition);
}

.file-remove:hover {
    color: var(--danger);
}

.agreement {
    display: flex;
    align-items: flex-start;
}

.checkbox-label {
    display: flex !important;
    align-items: flex-start;
    gap: 10px;
    font-weight: 400 !important;
    font-size: 0.85rem !important;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    margin-top: 3px;
    width: 16px;
    height: 16px;
}

.btn-submit {
    width: 100%;
    padding: 16px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(37,99,235,0.3);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.upload-note {
    margin-top: 16px;
    text-align: center;
}

.upload-note p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ---------- Report Preview ---------- */
.report-preview {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.report-header {
    padding: 32px 36px;
    border-bottom: 1px solid var(--border);
}

.report-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.report-logo {
    font-weight: 800;
    font-size: 1.1rem;
}

.report-badge {
    font-size: 0.8rem;
    color: var(--primary);
    background: rgba(37,99,235,0.08);
    padding: 4px 12px;
    border-radius: 50px;
    font-weight: 600;
}

.report-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.report-summary {
    display: flex;
    gap: 32px;
    padding: 32px 36px;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
}

.summary-score {
    text-align: center;
    min-width: 120px;
}

.score-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    margin: 0 auto 8px;
}

.score-num {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
}

.score-label {
    font-size: 0.75rem;
    opacity: 0.9;
}

.score-text {
    font-size: 0.85rem;
    font-weight: 500;
}

.text-warning {
    color: var(--warning);
}

.summary-items {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.red { background: var(--danger); }
.status-dot.orange { background: var(--warning); }
.status-dot.green { background: var(--accent); }

.summary-item div strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.summary-item div span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.report-detail {
    padding: 32px 36px;
}

.report-detail h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.report-table th {
    background: var(--bg-alt);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
}

.report-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.row-critical {
    background: rgba(239,68,68,0.04);
}

.row-high {
    background: rgba(245,158,11,0.04);
}

.tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag-critical {
    background: rgba(239,68,68,0.12);
    color: var(--danger);
}

.tag-high {
    background: rgba(245,158,11,0.12);
    color: #b45309;
}

.tag-warn {
    background: rgba(37,99,235,0.08);
    color: var(--primary);
}

.report-footer {
    padding: 16px 36px;
    background: #f8fafc;
    border-top: 1px solid var(--border);
    text-align: center;
}

.report-footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ---------- Pricing ---------- */
.pricing-section {
    background: var(--bg-alt);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 28px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    border-width: 2px;
    box-shadow: 0 0 0 4px rgba(37,99,235,0.06);
}

.featured-free {
    border-color: var(--accent);
    border-width: 2px;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text);
    color: white;
    padding: 4px 20px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.pricing-badge.popular {
    background: var(--primary);
}

.featured-free .pricing-badge {
    background: var(--accent);
}

.pricing-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    margin-top: 8px;
}

.price {
    margin-bottom: 24px;
}

.price-num {
    font-size: 3rem;
    font-weight: 900;
    color: var(--text);
}

.price-period {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 10px 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.btn-pricing {
    display: block;
    padding: 14px 24px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
    color: var(--text);
}

.btn-pricing:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-pricing-primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.btn-pricing-primary:hover {
    background: var(--primary-dark);
    color: white;
    border-color: var(--primary-dark);
}

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-light);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    font-weight: 600;
    font-size: 1rem;
}

.faq-arrow {
    font-size: 0.8rem;
    transition: var(--transition);
    color: var(--text-muted);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ---------- Footer ---------- */
.footer {
    background: var(--text);
    color: white;
    padding: 60px 0 0;
    border-radius: 20px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    color: white;
}

.footer-desc {
    margin-top: 16px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: 48px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: rgba(255,255,255,0.9);
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}

.footer-disclaimer {
    margin-top: 4px;
    font-size: 0.75rem !important;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .risks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pricing-card:last-child {
        grid-column: 1 / -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    .section-title {
        font-size: 1.75rem;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .desktop-only {
        display: none;
    }
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    .hero-stats {
        gap: 24px;
    }
    .stat-num {
        font-size: 1.5rem;
    }
    .steps-grid {
        flex-direction: column;
        align-items: center;
    }
    .step-card {
        max-width: 100%;
    }
    .step-arrow {
        transform: rotate(90deg);
        padding: 8px 0;
    }
    .risks-grid {
        grid-template-columns: 1fr;
    }
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    .pricing-card:last-child {
        grid-column: auto;
    }
    .report-summary {
        flex-direction: column;
    }
    .summary-score {
        display: flex;
        align-items: center;
        gap: 20px;
        text-align: left;
    }
    .score-circle {
        margin: 0;
    }
    .report-table {
        font-size: 0.75rem;
    }
    .report-table th,
    .report-table td {
        padding: 8px;
    }
    .upload-card {
        padding: 24px;
    }
    .footer-inner {
        flex-direction: column;
    }
    .footer-links {
        flex-wrap: wrap;
        gap: 24px;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-cta {
        display: none;
    }
    .hamburger {
        display: block;
    }
    .report-header {
        padding: 20px;
    }
    .report-summary,
    .report-detail,
    .report-footer {
        padding: 20px;
    }
    .report-title-row {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
    .report-meta {
        flex-direction: column;
        gap: 4px;
    }
}

/* ====== 定价区增强样式 ====== */
.price-original {
    font-size: 1rem;
    color: #94a3b8;
    text-decoration: line-through;
    margin-right: 8px;
}
.price-sub {
    font-size: 0.9rem;
    color: #94a3b8;
    margin-top: 4px;
}
.price-highlight {
    color: #f59e0b;
    font-weight: 700;
}

/* ====== 付款码区域 ====== */
.payment-section {
    background: #0f172a;
}
.payment-qr {
    max-width: 360px;
    margin: 0 auto;
    text-align: center;
    padding: 32px 24px;
    background: #1e293b;
    border-radius: 16px;
    border: 1px solid #334155;
}
.payment-qr-img {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    display: block;
    margin: 0 auto 16px;
}
.payment-qr-label {
    color: #f1f5f9;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.payment-note {
    color: #94a3b8;
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 20px;
}
.payment-actions {
    margin-top: 8px;
}
.btn-back-home {
    display: inline-block;
    background: #334155;
    color: #f1f5f9;
    text-decoration: none;
    padding: 12px 32px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background 0.2s;
}
.btn-back-home:hover {
    background: #475569;
}


/* ====== 定价按钮统一规格 ====== */
.btn-pricing-equal {
    min-width: 140px !important;
    padding: 12px 20px !important;
    font-size: 0.95rem !important;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
}


/* ====== 🔬 Logo 圆角底色 ====== */
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: #1e293b;
    border-radius: 10px;
    font-size: 1.2rem;
    border: 1px solid #334155;
}

/* ====== Section 标签圆角药丸 ====== */
.section-label {
    display: inline-block;
    background: #1e293b !important;
    color: #38bdf8 !important;
    font-size: 0.75rem !important;
    font-weight: 700 !important;
    letter-spacing: 1.5px !important;
    text-transform: uppercase !important;
    padding: 6px 20px !important;
    border-radius: 20px !important;
    margin-bottom: 16px !important;
    border: 1px solid #334155 !important;
}

/* ====== 定价卡片按钮下移到底部 ====== */
.pricing-card.featured-free,
.pricing-card.featured {
    display: flex;
    flex-direction: column;
}
.pricing-card.featured-free .btn-pricing,
.pricing-card.featured .btn-pricing-primary {
    margin-top: auto !important;
}

/* ====== 报告预览中的 logo ====== */
.report-logo {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    background: #1e293b;
    border-radius: 8px;
    border: 1px solid #334155;
    color: #f1f5f9;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ====== 风险卡片 - 6个自动网格 ====== */
.risks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}


/* ====== 报告锁区域 ====== */
.locked-section {
    margin-top: 24px;
    padding: 24px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 12px;
    text-align: center;
}
.locked-divider {
    color: #484f58;
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}
.locked-items {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.locked-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 16px 20px;
    min-width: 200px;
    filter: blur(3px);
    opacity: 0.6;
    user-select: none;
    pointer-events: none;
}
.locked-icon {
    font-size: 1.5rem;
}
.locked-text {
    text-align: left;
}
.locked-text strong {
    display: block;
    font-size: 0.9rem;
    color: #f0f6fc;
}
.locked-text span {
    display: block;
    font-size: 0.75rem;
    color: #8b949e;
    margin-top: 2px;
}

/* ====== 解锁 CTA ====== */
.unlock-cta {
    padding: 20px 0;
}
.unlock-cta-text {
    font-size: 1rem;
    color: #c9d1d9;
    margin-bottom: 16px;
}
.unlock-cta-text strong {
    color: #f0883e;
    font-size: 1.2rem;
}
.btn-unlock {
    display: inline-block;
    padding: 16px 48px;
    font-size: 1.15rem;
    font-weight: 700;
    background: linear-gradient(135deg, #f0883e, #e05b20);
    color: #fff !important;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(240, 136, 62, 0.3);
}
.btn-unlock:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(240, 136, 62, 0.5);
}
.unlock-hint {
    margin-top: 12px;
    font-size: 0.8rem;
    color: #8b949e;
}
.link-contact {
    color: #58a6ff;
    text-decoration: underline;
}

/* ====== 深度报告徽章 ====== */
.deep-badge {
    display: inline-block;
    padding: 8px 24px;
    background: linear-gradient(135deg, #1a472a, #238636);
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    border-radius: 20px;
    margin-bottom: 20px;
}

/* ====== 深度报告 CTA 区块 ====== */
.deep-cta-block {
    margin-top: 28px;
    padding: 0 8px;
}
.deep-cta-box {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: linear-gradient(135deg, #0d1117, #161b22);
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 24px;
    text-align: left;
}
.deep-cta-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}
.deep-cta-content h4 {
    font-size: 1.1rem;
    color: #f0f6fc;
    margin: 0 0 8px 0;
}
.deep-cta-content p {
    font-size: 0.85rem;
    color: #8b949e;
    margin: 0 0 16px 0;
    line-height: 1.5;
}
.btn-consult {
    display: inline-block;
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, #238636, #2ea043);
    color: #fff !important;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
}
.btn-consult:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 160, 67, 0.4);
}
.deep-cta-note {
    text-align: center;
    font-size: 0.8rem;
    color: #484f58;
    margin-top: 12px;
}

/* ====== 报告时间元数据 ====== */
.report-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

/* ====== 报告上间距 ====== */
.report-summary {
    margin-bottom: 28px;
}

/* ====== 手机适配 ====== */
@media (max-width: 768px) {
    .locked-items {
        flex-direction: column;
        align-items: center;
    }
    .locked-item {
        min-width: unset;
        width: 100%;
        max-width: 300px;
    }
    .deep-cta-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}


/* ====== 留咨弹窗 ====== */
.contact-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.contact-modal-overlay.active {
    display: flex;
    opacity: 1;
}
.contact-modal {
    position: relative;
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 16px;
    padding: 40px 32px 32px 32px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.contact-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: #8b949e;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
    border-radius: 4px;
    transition: color 0.2s;
}
.contact-modal-close:hover {
    color: #f0f6fc;
}
.contact-modal-content {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}
.contact-modal-left {
    flex: 0 0 260px;
    text-align: center;
}
.contact-modal-left h3 {
    font-size: 1.2rem;
    color: #f0f6fc;
    margin: 0 0 8px 0;
}
.contact-modal-sub {
    font-size: 0.8rem;
    color: #8b949e;
    margin: 0 0 20px 0;
    line-height: 1.5;
}
.contact-qr-box {
    background: #fff;
    border-radius: 12px;
    padding: 12px;
    display: inline-block;
}
.contact-qr-img {
    width: 180px;
    height: 180px;
    display: block;
    border-radius: 8px;
}
.contact-qr-hint {
    font-size: 0.75rem;
    color: #8b949e;
    margin: 10px 0 0 0;
}
.contact-wechat-info {
    margin-top: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.contact-wechat-label {
    font-size: 0.8rem;
    color: #8b949e;
}
.contact-wechat-id {
    font-size: 0.85rem;
    color: #58a6ff;
    font-weight: 600;
}
.contact-copy-btn {
    padding: 4px 14px;
    font-size: 0.75rem;
    background: #21262d;
    border: 1px solid #30363d;
    color: #c9d1d9;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}
.contact-copy-btn:hover {
    background: #30363d;
    color: #f0f6fc;
}
.contact-copy-btn.copied {
    background: #238636;
    border-color: #238636;
    color: #fff;
}
.contact-modal-divider {
    width: 1px;
    align-self: stretch;
    background: #30363d;
    flex-shrink: 0;
}
.contact-modal-right {
    flex: 1;
    min-width: 0;
}
.contact-modal-right h4 {
    font-size: 1rem;
    color: #f0f6fc;
    margin: 0 0 4px 0;
}
.contact-modal-sub2 {
    font-size: 0.8rem;
    color: #8b949e;
    margin: 0 0 20px 0;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.contact-input {
    width: 100%;
    box-sizing: border-box;
    padding: 12px 16px;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    color: #f0f6fc;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}
.contact-input::placeholder {
    color: #484f58;
}
.contact-input:focus {
    border-color: #58a6ff;
}
.contact-textarea {
    resize: vertical;
    min-height: 60px;
}
.contact-submit-btn {
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, #238636, #2ea043);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.contact-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(46,160,67,0.4);
}
.contact-privacy {
    font-size: 0.7rem;
    color: #484f58;
    margin-top: 8px;
    text-align: center;
}

/* mobile */
@media (max-width: 640px) {
    .contact-modal-content {
        flex-direction: column;
        align-items: center;
    }
    .contact-modal-left {
        flex: none;
        width: 100%;
    }
    .contact-modal-divider {
        width: 100%;
        height: 1px;
        align-self: center;
    }
    .contact-modal-right {
        width: 100%;
    }
    .contact-modal {
        padding: 32px 20px 24px;
    }
}