/* ===== CSS Variables & Root Styles ===== */
:root {
    /* Colors */
    --primary-color: #4A90D9;
    --primary-light: #6BA3E5;
    --primary-dark: #2E5BA3;
    --accent-color: #E8734A;
    --accent-light: #F09968;
    --accent-dark: #C85A35;
    --bg-color: #F5F7FA;
    --bg-secondary: #FFFFFF;
    --text-primary: #1A202C;
    --text-secondary: #4A5568;
    --text-tertiary: #A0AEC0;
    --border-color: #E2E8F0;
    --success-color: #48BB78;
    --warning-color: #F6AD55;
    --error-color: #F56565;
    --info-color: #4299E1;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Font Sizes */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.5rem;
    --font-2xl: 2rem;

    /* Line Height */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-bg: 400;
    --z-modal: 500;
    --z-notification: 600;
}

/* ===== Global Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    font-size: var(--font-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-color);
    min-height: 100vh;
}

body.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.18), transparent 32rem),
        radial-gradient(circle at 82% 18%, rgba(20, 184, 166, 0.12), transparent 26rem),
        linear-gradient(135deg, #07111f 0%, #0f1d2f 48%, #172337 100%);
    color: #e5edf7;
    position: relative;
}

body.auth-page::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(120deg, rgba(0, 0, 0, 0.75), transparent 72%);
}

body.auth-page::after {
    content: "";
    position: fixed;
    right: -9rem;
    top: 8%;
    width: 28rem;
    height: 46rem;
    pointer-events: none;
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(96, 165, 250, 0.18), rgba(15, 23, 42, 0));
    filter: blur(2px);
}

body.app-page {
    display: flex;
    flex-direction: column;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
}

h1 { font-size: var(--font-2xl); margin-bottom: var(--spacing-md); }
h2 { font-size: var(--font-xl); margin-bottom: var(--spacing-md); }
h3 { font-size: var(--font-lg); margin-bottom: var(--spacing-sm); }
h4 { font-size: var(--font-base); margin-bottom: var(--spacing-sm); }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* ===== Auth Page Styles ===== */
.auth-container {
    width: 100%;
    max-width: 1120px;
    padding: clamp(1.25rem, 4vw, 3rem);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(380px, 440px);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
    position: relative;
    z-index: 1;
}

.auth-brand-panel {
    max-width: 560px;
}

.auth-brand-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 0.8rem;
    margin-bottom: 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: var(--radius-full);
    background: rgba(15, 23, 42, 0.42);
    color: #bfdbfe;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.auth-brand-panel h2 {
    max-width: 9.5em;
    margin-bottom: 1.25rem;
    color: #f8fafc;
    font-size: clamp(2rem, 4.35vw, 3.15rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.16;
}

.auth-brand-panel h2 span {
    display: block;
}

.auth-brand-panel p {
    max-width: 34rem;
    color: #cbd5e1;
    font-size: 1.05rem;
    line-height: 1.9;
}

.auth-brand-points {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.auth-brand-points span {
    padding: 0.7rem 0.9rem;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.42);
    color: #e2e8f0;
    font-size: 0.88rem;
}

.auth-card {
    width: 100%;
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.97);
    border: 1px solid rgba(226, 232, 240, 0.78);
    border-radius: 18px;
    padding: clamp(2rem, 4vw, 2.75rem);
    box-shadow: 0 28px 80px rgba(2, 8, 23, 0.38), 0 1px 0 rgba(255, 255, 255, 0.82) inset;
    animation: slideUp 0.3s var(--transition-base);
}

.auth-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, #0f3b63, #2563eb 48%, #0f766e);
}

.auth-header {
    text-align: left;
    margin-bottom: 2rem;
}

.auth-header::before {
    content: "SECURE ACCESS";
    display: block;
    margin-bottom: 0.75rem;
    color: #64748b;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
}

.auth-header h1 {
    color: #0f172a;
    font-size: 1.85rem;
    letter-spacing: -0.035em;
    margin-bottom: 0.55rem;
}

.auth-header p {
    color: #64748b;
    font-size: var(--font-sm);
    margin: 0;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-toggle {
    text-align: center;
    margin-top: 1.25rem;
    padding-top: 1.1rem;
    border-top: 1px solid #e2e8f0;
    font-size: var(--font-sm);
    color: #64748b;
}

.auth-toggle .btn-link {
    margin-left: var(--spacing-sm);
}

body.auth-page label {
    color: #334155;
    font-size: 0.82rem;
    font-weight: 700;
}

body.auth-page input[type="text"],
body.auth-page input[type="email"],
body.auth-page input[type="password"] {
    min-height: 48px;
    border-color: #cbd5e1;
    border-radius: 10px;
    background: #f8fafc;
    color: #0f172a;
}

body.auth-page input[type="text"]:focus,
body.auth-page input[type="email"]:focus,
body.auth-page input[type="password"]:focus {
    border-color: #1d4ed8;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.11);
}

body.auth-page .btn-primary {
    min-height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, #0f2742, #1d4ed8);
    box-shadow: 0 14px 30px rgba(29, 78, 216, 0.24);
    font-weight: 700;
}

body.auth-page .btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #0b2037, #1e40af);
    box-shadow: 0 16px 34px rgba(29, 78, 216, 0.3);
    transform: translateY(-1px);
}

body.auth-page .btn-link {
    color: #1d4ed8;
    font-weight: 700;
    text-decoration: none;
}

body.auth-page .btn-link:hover {
    color: #1e3a8a;
    text-decoration: underline;
}

body.auth-page .form-hint {
    color: #64748b !important;
}

body.auth-page #registerInviteBanner {
    border: 1px solid #bfdbfe;
    border-left: 4px solid #2563eb;
    border-radius: 10px !important;
    background: #eff6ff !important;
    color: #1e3a8a !important;
}

body.auth-page .alert-error {
    display: block;
    line-height: 1.65;
    border-left-color: #dc2626;
    background: #fef2f2;
    color: #991b1b;
}

body.auth-page .spinner {
    display: block;
    margin: 1rem auto 0;
    border-color: rgba(29, 78, 216, 0.18);
    border-top-color: #1d4ed8;
}

/* ===== Form Styles ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    font-size: var(--font-sm);
    color: var(--text-primary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: 0.75rem var(--spacing-md);
    font-size: var(--font-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    font-family: inherit;
    min-height: 44px;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234A5568' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: 2.5rem;
}

input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary);
}

/* ===== Button Styles ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-base);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    gap: var(--spacing-sm);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--border-color);
}

.btn-accent {
    background-color: var(--accent-color);
    color: white;
}

.btn-accent:hover:not(:disabled) {
    background-color: var(--accent-dark);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background-color: #38a169;
}

.btn-error {
    background-color: var(--error-color);
    color: white;
}

.btn-error:hover:not(:disabled) {
    background-color: #e53e3e;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: var(--font-sm);
    min-height: 36px;
}

.btn-block {
    width: 100%;
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 500;
    text-decoration: underline;
    transition: color var(--transition-fast);
    min-height: auto;
}

.btn-link:hover {
    color: var(--primary-dark);
}

/* ===== Alerts & Notifications ===== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideDown 0.3s var(--transition-base);
}

.alert-error {
    background-color: #FEE;
    color: #C53030;
    border-left: 4px solid var(--error-color);
}

.alert-success {
    background-color: #F0FFF4;
    color: #22543D;
    border-left: 4px solid var(--success-color);
}

.alert-warning {
    background-color: #FFFAF0;
    color: #7C2D12;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background-color: #EBF8FF;
    color: #2C5282;
    border-left: 4px solid var(--info-color);
}

/* ===== Spinner/Loading ===== */
.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(74, 144, 217, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-large {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Card Styles ===== */
.card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    margin: 0;
}

.card-body {
    margin-bottom: var(--spacing-lg);
}

.card-footer {
    display: flex;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ===== App Layout ===== */
.app-layout {
    display: flex;
    height: 100vh;
}

.app-sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    overflow-y: auto;
    box-shadow: var(--shadow-sm);
}

.app-sidebar-header {
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.app-sidebar-header h1 {
    font-size: var(--font-lg);
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--primary-color);
}

.app-sidebar-header p {
    margin: 0;
    font-size: var(--font-sm);
    color: var(--text-tertiary);
}

.app-nav {
    list-style: none;
    padding: 0;
}

.app-nav-item {
    margin: 0;
}

.app-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0.75rem var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.app-nav-link:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

.app-nav-link.active {
    background-color: rgba(74, 144, 217, 0.1);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.app-nav-icon {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.app-header-title {
    margin: 0;
    font-size: var(--font-xl);
}

.app-user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.app-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    cursor: pointer;
}

.app-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.app-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    text-align: center;
    font-size: var(--font-sm);
    color: var(--text-tertiary);
}

/* ===== Mobile Bottom Tab Bar ===== */
.app-bottom-tabs {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    height: 60px;
    padding: var(--spacing-sm) 0;
    z-index: var(--z-sticky);
}

.app-bottom-tabs-list {
    display: flex;
    list-style: none;
    height: 100%;
    margin: 0;
    padding: 0;
}

.app-bottom-tabs-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.app-bottom-tabs-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 100%;
    height: 100%;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-xs);
    transition: color var(--transition-fast);
}

.app-bottom-tabs-link.active {
    color: var(--primary-color);
}

.app-bottom-tabs-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Dashboard Grid ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.dashboard-grid.full-width {
    grid-template-columns: 1fr;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.stat-card.accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
}

.stat-card.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #68d391 100%);
}

.stat-card h3 {
    font-size: var(--font-sm);
    margin: 0 0 var(--spacing-sm) 0;
    opacity: 0.9;
    font-weight: 400;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: bold;
    margin: 0;
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tabs-item {
    padding: var(--spacing-md) 0;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-weight: 500;
}

.tabs-item:hover {
    color: var(--primary-color);
}

.tabs-item.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tabs-content {
    display: none;
}

.tabs-content.active {
    display: block;
    animation: fadeIn 0.3s var(--transition-fast);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== Chat Bubble ===== */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 600px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
}

.message {
    display: flex;
    margin-bottom: var(--spacing-lg);
    animation: slideUp 0.3s var(--transition-fast);
}

.message.user {
    justify-content: flex-end;
}

.message.ai {
    justify-content: flex-start;
}

.message-bubble {
    max-width: 70%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    line-height: var(--line-height-normal);
    word-wrap: break-word;
}

.message.ai .message-bubble {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.message.user .message-bubble {
    background-color: var(--primary-color);
    color: white;
}

.chat-input-area {
    display: flex;
    gap: var(--spacing-md);
}

.chat-input-area textarea {
    flex: 1;
    max-height: 120px;
    margin: 0;
}

/* ===== Unified Chat Answer UI (questionnaire & followup) ===== */
.chat-answer-container {
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    height: 70vh;
    max-height: 700px;
    min-height: 400px;
}

.chat-answer-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.chat-answer-header h3 {
    margin: 0;
    font-size: var(--font-lg);
    color: var(--primary-color);
}

.chat-answer-header .chat-subtitle {
    margin: 0.25rem 0 0 0;
    font-size: var(--font-sm);
    color: var(--text-secondary);
}

.chat-answer-progress {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    padding: 0.6rem var(--spacing-lg);
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-sm);
    flex-shrink: 0;
}

.chat-answer-progress .progress-label {
    font-weight: 600;
}

.chat-answer-progress .progress-bar-wrap {
    flex: 1;
    min-width: 60px;
    height: 6px;
    background: #e9ecef;
    border-radius: 3px;
    overflow: hidden;
}

.chat-answer-progress .progress-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.chat-answer-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    scroll-behavior: smooth;
}

.chat-answer-messages .message {
    display: flex;
    margin-bottom: var(--spacing-lg);
    animation: slideUp 0.3s ease;
}

.chat-answer-messages .message.system {
    justify-content: flex-start;
}

.chat-answer-messages .message.user {
    justify-content: flex-end;
}

.chat-answer-messages .message-bubble {
    max-width: 75%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    line-height: var(--line-height-normal);
    word-wrap: break-word;
    white-space: pre-wrap;
}

.chat-answer-messages .message.system .message-bubble {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.chat-answer-messages .message.user .message-bubble {
    background-color: var(--primary-color);
    color: white;
}

.chat-answer-messages .board-transition {
    text-align: center;
    padding: var(--spacing-md) 0;
    color: var(--primary-color);
    font-weight: 600;
    font-size: var(--font-sm);
    position: relative;
}

.chat-answer-messages .board-transition::before,
.chat-answer-messages .board-transition::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 25%;
    height: 1px;
    background: var(--border-color);
}

.chat-answer-messages .board-transition::before { left: 5%; }
.chat-answer-messages .board-transition::after { right: 5%; }

.chat-answer-messages .trigger-tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    font-size: var(--font-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 0.4rem;
}

.chat-answer-messages .trigger-tag.contradiction {
    background: rgba(245, 101, 101, 0.15);
    color: var(--error-color);
}

.chat-answer-messages .trigger-tag.gap {
    background: rgba(246, 173, 85, 0.15);
    color: var(--warning-color);
}

.chat-answer-messages .trigger-tag.anomaly {
    background: rgba(66, 153, 225, 0.15);
    color: var(--info-color);
}

.chat-answer-messages .trigger-evidence {
    font-size: var(--font-xs);
    color: var(--text-tertiary);
    padding: 0.4rem 0.6rem;
    background: rgba(0,0,0,0.03);
    border-radius: var(--radius-sm);
    margin-bottom: 0.4rem;
    border-left: 2px solid var(--border-color);
}

.chat-answer-input {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    align-items: flex-end;
    flex-shrink: 0;
}

.chat-answer-input textarea {
    flex: 1;
    min-height: 50px;
    max-height: 120px;
    resize: vertical;
    margin: 0;
    border-radius: var(--radius-md);
}

.chat-answer-input .chat-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

@media (max-width: 767px) {
    .chat-answer-container {
        height: calc(100vh - 220px);
        min-height: 300px;
    }

    .chat-answer-messages .message-bubble {
        max-width: 90%;
    }

    .chat-answer-input {
        flex-direction: column;
    }

    .chat-answer-input .chat-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* ===== Progress Bar ===== */
.progress {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-light) 100%);
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

/* ===== Badge ===== */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-primary {
    background-color: rgba(74, 144, 217, 0.2);
    color: var(--primary-color);
}

.badge-accent {
    background-color: rgba(232, 115, 74, 0.2);
    color: var(--accent-color);
}

.badge-success {
    background-color: rgba(72, 187, 120, 0.2);
    color: var(--success-color);
}

.badge-warning {
    background-color: rgba(246, 173, 85, 0.2);
    color: var(--warning-color);
}

.badge-error {
    background-color: rgba(245, 101, 101, 0.2);
    color: var(--error-color);
}

/* ===== List Styles ===== */
.list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.list-item-title {
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.list-item-meta {
    font-size: var(--font-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ===== Modal Styles ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal-bg);
    animation: fadeIn 0.3s var(--transition-fast);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
    animation: slideUp 0.3s var(--transition-base);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-lg);
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    justify-content: flex-end;
}

/* ===== Tooltip ===== */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    background-color: var(--text-primary);
    color: white;
    text-align: center;
    padding: 0.5rem var(--spacing-md);
    border-radius: var(--radius-md);
    position: absolute;
    z-index: var(--z-dropdown);
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    font-size: var(--font-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* ===== Drag & Drop ===== */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background-color: var(--bg-color);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(74, 144, 217, 0.05);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: rgba(74, 144, 217, 0.1);
}

.upload-area-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.upload-area-text {
    color: var(--text-secondary);
    margin: 0;
    margin-bottom: var(--spacing-sm);
}

.upload-area-hint {
    font-size: var(--font-sm);
    color: var(--text-tertiary);
    margin: 0;
}

/* ===== Voice Input ===== */
.voice-textarea-wrap {
    position: relative;
    flex: 1;
    display: flex;
    align-items: flex-end;
}

.voice-textarea-wrap textarea {
    flex: 1;
    padding-right: 3rem;
}

.voice-btn {
    position: absolute;
    right: 8px;
    bottom: 8px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    padding: 0;
    z-index: 10;
    pointer-events: auto;
}

.voice-btn .voice-btn-label {
    font-size: 1rem;
    line-height: 1;
}

.voice-btn--idle {
    background: var(--bg-color);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.voice-btn--idle:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.voice-btn--recording {
    background: var(--error-color);
    color: white;
    animation: voicePulse 1s ease-in-out infinite;
}

.voice-btn--uploading {
    background: var(--warning-color);
    color: white;
    cursor: wait;
    opacity: 0.8;
}

.voice-btn--error {
    background: var(--bg-color);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.voice-btn--disabled {
    background: var(--bg-color);
    color: var(--text-tertiary);
    border: 1px solid var(--border-color);
    cursor: not-allowed;
    opacity: 0.5;
}

.voice-btn--disabled:hover {
    transform: none;
}

.voice-timer {
    position: absolute;
    right: 48px;
    bottom: 14px;
    font-size: var(--font-xs);
    color: var(--error-color);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.voice-status-note {
    position: absolute;
    right: 8px;
    bottom: 50px;
    font-size: var(--font-xs);
    color: var(--warning-color);
    font-weight: 600;
    max-width: 220px;
    line-height: 1.3;
    white-space: normal;
    text-align: right;
    padding: 4px 8px;
    border-radius: 8px;
    background: rgba(237, 137, 54, 0.12);
    z-index: 2;
}

@keyframes voicePulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(245, 101, 101, 0.4); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 8px rgba(245, 101, 101, 0); }
}

/* ===== Character Count ===== */
.char-count {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    font-size: var(--font-xs);
    color: var(--text-tertiary);
}

.char-count.warning {
    color: var(--warning-color);
}

.char-count.error {
    color: var(--error-color);
}

/* ===== Responsive Design ===== */
@media (max-width: 1023px) {
    .app-layout {
        flex-direction: column;
    }

    .app-sidebar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        max-width: 280px;
        height: 100%;
        z-index: var(--z-fixed);
        border-right: 1px solid var(--border-color);
        border-bottom: none;
    }

    .app-sidebar.active {
        display: flex;
        flex-direction: column;
    }

    .app-main {
        width: 100%;
        padding-bottom: 60px;
    }

    .app-bottom-tabs {
        display: flex;
    }

    .app-content {
        padding: var(--spacing-lg);
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .message-bubble {
        max-width: 90%;
    }

    .modal {
        width: 95%;
    }

    .chat-container {
        max-height: 400px;
    }
}

@media (max-width: 960px) {
    .auth-container {
        max-width: 620px;
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }

    .auth-brand-panel {
        text-align: center;
        margin: 0 auto;
    }

    .auth-brand-panel h2,
    .auth-brand-panel p {
        max-width: none;
    }

    .auth-brand-points {
        justify-content: center;
        margin-top: 1.25rem;
    }
}

@media (max-width: 767px) {
    :root {
        font-size: 14px;
    }

    body {
        font-size: 14px;
    }

    .auth-container {
        padding: var(--spacing-md);
        gap: 1.25rem;
    }

    .auth-brand-panel h2 {
        font-size: 2rem;
    }

    .auth-brand-panel p {
        font-size: 0.95rem;
        line-height: 1.75;
    }

    .auth-brand-points span {
        padding: 0.55rem 0.75rem;
    }

    .auth-card {
        padding: var(--spacing-xl);
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .btn {
        min-height: 40px;
        padding: 0.625rem 1.25rem;
    }

    .card {
        padding: var(--spacing-md);
    }

    .card-footer {
        flex-direction: column;
    }

    .card-footer .btn {
        width: 100%;
    }

    .dashboard-grid {
        gap: var(--spacing-md);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-card .stat-value {
        font-size: 1.5rem;
    }

    .tabs {
        gap: var(--spacing-sm);
    }

    .tabs-item {
        padding: var(--spacing-sm) 0;
        font-size: var(--font-sm);
    }

    .message-bubble {
        padding: var(--spacing-md);
    }

    .upload-area {
        padding: var(--spacing-xl);
    }

    .upload-area-icon {
        font-size: 2rem;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="date"],
    textarea,
    select {
        font-size: 16px;
    }

    .modal {
        width: 95%;
    }

    .modal-header {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .modal-body {
        padding: var(--spacing-lg);
    }

    .modal-footer {
        padding: var(--spacing-md) var(--spacing-lg);
        flex-direction: column-reverse;
    }

    .modal-footer .btn {
        width: 100%;
    }

    .app-header {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .app-content {
        padding: var(--spacing-md);
    }
}

/* ===== Tablet Optimizations ===== */
@media (min-width: 768px) and (max-width: 1023px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .card {
        padding: var(--spacing-lg);
    }
}

/* ===== Print Styles ===== */
@media print {
    .app-sidebar,
    .app-header,
    .app-bottom-tabs,
    .btn,
    .modal-overlay {
        display: none;
    }

    .app-content {
        padding: 0;
    }

    .card {
        page-break-inside: avoid;
    }
}

/* ╔══════════════════════════════════════════════════════════════╗ */
/* ║  vnext(26.4.17) 认知镜面 1.0 —— 视觉母题 (Mirror + Heat + Evidence) ║ */
/* ║  - 所有以 .mirror- 前缀的样式均属于本期新增；                          ║ */
/* ║  - 颜色变量收敛在 :root 内，避免散落；                                  ║ */
/* ║  - 图形组件高度自适应，保持"先图后文"的第一屏体验。                     ║ */
/* ╚══════════════════════════════════════════════════════════════╝ */
:root {
    --mirror-surface: #F7F9FC;
    --mirror-surface-alt: #FFFFFF;
    --mirror-ink: #1A202C;
    --mirror-ink-dim: #4A5568;
    --mirror-ink-mute: #8892A6;
    --mirror-accent-self: #2F6BFF;
    --mirror-accent-peer: #2A9D8F;
    --mirror-accent-ai: #E76F51;
    --mirror-accent-warn: #F4A261;
    --mirror-accent-conflict: #C62828;
    --mirror-cell-empty: #F2F4F8;
    --mirror-ring: rgba(47, 107, 255, 0.18);
    --mirror-halo: radial-gradient(circle at 30% 20%, rgba(47,107,255,0.08), transparent 55%), radial-gradient(circle at 80% 80%, rgba(231,111,81,0.08), transparent 55%);
    --mirror-radius: 18px;
    --mirror-shadow: 0 8px 24px rgba(20, 40, 90, 0.06);
}

.mirror-panel {
    background: var(--mirror-surface-alt);
    border-radius: var(--mirror-radius);
    padding: 1.5rem;
    box-shadow: var(--mirror-shadow);
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}
.mirror-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--mirror-halo);
    pointer-events: none;
    opacity: 0.7;
}
.mirror-panel > * { position: relative; z-index: 1; }
.mirror-panel-title {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin: 0 0 1rem 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--mirror-ink);
}
.mirror-panel-title small {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--mirror-ink-mute);
}

.mirror-mode-banner {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: rgba(244, 162, 97, 0.15);
    color: #9B5C1D;
    border-radius: 999px;
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
}

.mirror-empty {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--mirror-ink-mute);
}
.mirror-empty-icon {
    font-size: 2.5rem;
    color: var(--mirror-ring);
    margin-bottom: 0.5rem;
}
.mirror-empty-message { margin: 0; font-size: 0.9rem; }

/* ── 分歧热力图 ── */
.mirror-heatmap-wrapper { overflow-x: auto; }
.mirror-heatmap {
    border-collapse: separate;
    border-spacing: 6px;
    width: 100%;
    table-layout: fixed;
}
.mirror-heatmap th,
.mirror-heatmap td {
    padding: 0.75rem 0.5rem;
    text-align: center;
    font-size: 0.85rem;
    min-width: 72px;
}
.mirror-heatmap-row-label {
    font-weight: 600;
    color: var(--mirror-ink-dim);
    width: 90px;
    text-align: right;
    padding-right: 0.75rem !important;
    font-size: 0.85rem;
}
.mirror-heatmap-col {
    font-weight: 600;
    color: var(--mirror-ink);
    padding-bottom: 0.5rem !important;
}
.mirror-heatmap-col-name { display: block; font-size: 0.85rem; }
.mirror-heatmap-col-meta { display: block; font-size: 0.7rem; color: var(--mirror-ink-mute); font-weight: 500; margin-top: 0.15rem; }
.mirror-heatmap-cell {
    border-radius: 10px;
    cursor: pointer;
    transition: transform 160ms ease, box-shadow 160ms ease;
    color: var(--mirror-ink);
    font-weight: 600;
    position: relative;
}
.mirror-heatmap-cell:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(20, 40, 90, 0.12);
}
.mirror-heatmap-cell.is-muted {
    opacity: 0.55;
    color: var(--mirror-ink-mute);
}
.mirror-heatmap-cell.is-empty {
    color: var(--mirror-ink-mute);
    font-weight: 500;
    background-image: repeating-linear-gradient(45deg, transparent 0 4px, rgba(136, 146, 166, 0.1) 4px 8px);
}
.mirror-heatmap-cell.is-conflict::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 10px;
    background-image: repeating-linear-gradient(135deg, transparent 0 6px, rgba(198, 40, 40, 0.35) 6px 8px);
    pointer-events: none;
}
.mirror-heatmap-value { position: relative; z-index: 1; }

.mirror-heatmap-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--mirror-ink-mute);
}
.mirror-heatmap-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.mirror-heatmap-legend-item i {
    width: 12px; height: 12px;
    border-radius: 3px;
    display: inline-block;
    background: var(--mirror-cell-empty);
}
.mirror-heatmap-legend-item i.is-self    { background: var(--mirror-accent-self); }
.mirror-heatmap-legend-item i.is-peer    { background: var(--mirror-accent-peer); }
.mirror-heatmap-legend-item i.is-ai      { background: var(--mirror-accent-ai); }
.mirror-heatmap-legend-item i.is-muted   { background: repeating-linear-gradient(45deg, #d8dde6 0 3px, #eef1f6 3px 6px); }
.mirror-heatmap-legend-item i.is-conflict{ background: repeating-linear-gradient(135deg, #fbe5e5 0 3px, #c62828 3px 6px); }

/* ── 盲区雷达 ── */
.mirror-radar-wrapper {
    display: grid;
    grid-template-columns: minmax(240px, 320px) 1fr;
    gap: 1.5rem;
    align-items: center;
}
@media (max-width: 720px) {
    .mirror-radar-wrapper { grid-template-columns: 1fr; }
}
.mirror-radar-svg { width: 100%; height: auto; }
.mirror-radar-ring {
    fill: none;
    stroke: var(--mirror-ring);
    stroke-width: 1;
}
.mirror-radar-spoke {
    stroke: var(--mirror-ring);
    stroke-width: 1;
}
.mirror-radar-area {
    fill: rgba(47, 107, 255, 0.15);
    stroke: var(--mirror-accent-self);
    stroke-width: 2;
}
.mirror-radar-dot {
    cursor: pointer;
    transition: r 160ms ease;
}
.mirror-radar-dot:hover { r: 7; }
.mirror-radar-label {
    font-size: 11px;
    fill: var(--mirror-ink-dim);
    pointer-events: none;
}
.mirror-radar-legend {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.5rem;
}
.mirror-radar-legend li {
    display: grid;
    grid-template-columns: 12px 1fr auto;
    column-gap: 0.5rem;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 10px;
    background: var(--mirror-surface);
    transition: background 160ms ease;
}
.mirror-radar-legend li:hover { background: rgba(47,107,255,0.06); }
.mirror-radar-legend li i {
    width: 12px; height: 12px; border-radius: 3px; display: inline-block;
}
.mirror-radar-legend-name { font-size: 0.85rem; font-weight: 600; color: var(--mirror-ink); }
.mirror-radar-legend-score {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    color: var(--mirror-ink);
    background: var(--mirror-surface-alt);
    padding: 0.1rem 0.4rem;
    border-radius: 6px;
}
.mirror-radar-legend-reason {
    grid-column: 2 / 4;
    font-size: 0.78rem;
    color: var(--mirror-ink-mute);
    margin-top: 0.15rem;
    line-height: 1.4;
}

/* ── 追问树摘要 ── */
.mirror-tree { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.mirror-tree-point {
    border-radius: 12px;
    padding: 0.85rem 1rem;
    background: var(--mirror-surface);
    cursor: pointer;
    transition: background 160ms ease, transform 160ms ease;
}
.mirror-tree-point:hover {
    background: rgba(47,107,255,0.06);
    transform: translateX(2px);
}
.mirror-tree-point-head {
    display: grid;
    grid-template-columns: 28px 1fr auto;
    column-gap: 0.75rem;
    align-items: center;
}
.mirror-tree-trigger {
    width: 28px; height: 28px; border-radius: 8px;
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.9rem; font-weight: 700;
}
.mirror-tree-point-title { display: grid; gap: 0.15rem; }
.mirror-tree-point-summary {
    font-weight: 600;
    color: var(--mirror-ink);
    font-size: 0.9rem;
    line-height: 1.4;
}
.mirror-tree-point-meta { font-size: 0.72rem; color: var(--mirror-ink-mute); }
.mirror-tree-point-evidence {
    margin: 0.5rem 0 0 40px;
    font-size: 0.72rem;
    color: var(--mirror-ink-mute);
    font-style: italic;
}
.mirror-tree-badge {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: #e2e8f0;
    color: var(--mirror-ink-dim);
    white-space: nowrap;
}
.mirror-tree-badge-open { background: rgba(231,111,81,0.18); color: #9B3A1F; }
.mirror-tree-badge-in_progress { background: rgba(47,107,255,0.15); color: #1F4AD9; }
.mirror-tree-badge-closed { background: rgba(42,157,143,0.18); color: #1E6B60; }

/* ── 证据抽屉 ── */
.mirror-drawer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 900;
}
.mirror-drawer.is-open { pointer-events: auto; }
.mirror-drawer-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
    opacity: 0;
    transition: opacity 220ms ease;
}
.mirror-drawer.is-open .mirror-drawer-backdrop { opacity: 1; }
.mirror-drawer-panel {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: min(480px, 94vw);
    background: var(--mirror-surface-alt);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 260ms cubic-bezier(0.22, 0.8, 0.28, 1);
    box-shadow: -24px 0 48px rgba(15, 23, 42, 0.18);
}
.mirror-drawer.is-open .mirror-drawer-panel { transform: translateX(0); }
.mirror-drawer-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 1.25rem 1.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
}
.mirror-drawer-title { margin: 0; font-size: 1.1rem; font-weight: 700; color: var(--mirror-ink); }
.mirror-drawer-subtitle { margin: 0.25rem 0 0; font-size: 0.8rem; color: var(--mirror-ink-mute); }
.mirror-drawer-close {
    background: none;
    border: none;
    font-size: 1.6rem;
    color: var(--mirror-ink-mute);
    cursor: pointer;
}
.mirror-drawer-body { flex: 1; overflow-y: auto; padding: 1rem 1.5rem; }
.mirror-drawer-footer {
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--mirror-ink-mute);
}
.mirror-drawer-loading { text-align: center; padding: 2rem; color: var(--mirror-ink-mute); }
.mirror-drawer-loading .spinner { margin: 0 auto 1rem; }

.mirror-evidence-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
.mirror-evidence-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    background: var(--mirror-surface);
}
.mirror-evidence-card-head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}
.mirror-evidence-badge {
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
}
.mirror-evidence-card-title {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--mirror-ink);
}
.mirror-evidence-card-excerpt {
    margin: 0.25rem 0 0.5rem;
    color: var(--mirror-ink-dim);
    font-size: 0.85rem;
    line-height: 1.5;
}
.mirror-evidence-card-foot {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    font-size: 0.72rem;
    color: var(--mirror-ink-mute);
}
.mirror-evidence-card-id { margin-left: auto; font-family: 'JetBrains Mono', monospace; }

/* ── 证据抽屉 · 上下文头区 (vnext demo 深度展示) ── */
.mirror-drawer-context {
    background: linear-gradient(135deg, rgba(47,107,255,0.06), rgba(42,157,143,0.04));
    border: 1px solid rgba(47,107,255,0.15);
    border-radius: 14px;
    padding: 1rem 1.1rem;
    margin-bottom: 1rem;
}
.mirror-drawer-context.is-point {
    background: linear-gradient(135deg, rgba(231,111,81,0.08), rgba(244,162,97,0.05));
    border-color: rgba(231,111,81,0.2);
}
.mirror-drawer-context-head {
    display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 0.85rem;
}
.mirror-drawer-context-badge {
    flex-shrink: 0;
    font-size: 0.72rem; font-weight: 700;
    padding: 0.2rem 0.6rem; border-radius: 999px;
}
.mirror-drawer-context-badge.is-conflict { background: rgba(198,40,40,0.13); color: #9B1C1C; }
.mirror-drawer-context-badge.is-ready    { background: rgba(42,157,143,0.15); color: #1E6B60; }
.mirror-drawer-context-badge.is-muted    { background: rgba(136,146,166,0.15); color: var(--mirror-ink-mute); }
.mirror-drawer-context-reason {
    margin: 0; font-size: 0.88rem; line-height: 1.6; color: var(--mirror-ink-dim);
}
.mirror-drawer-scores {
    display: grid; gap: 0.35rem; margin-bottom: 0.75rem;
}
.mirror-drawer-score {
    display: grid; grid-template-columns: 40px 1fr 36px;
    align-items: center; gap: 0.5rem; font-size: 0.8rem;
}
.mirror-drawer-score-label { color: var(--mirror-ink-mute); font-weight: 600; }
.mirror-drawer-score-track {
    height: 8px; background: var(--mirror-cell-empty);
    border-radius: 4px; overflow: hidden;
}
.mirror-drawer-score-fill { height: 100%; border-radius: 4px; transition: width 300ms ease; }
.mirror-drawer-score-value {
    text-align: right; font-weight: 700;
    color: var(--mirror-ink); font-variant-numeric: tabular-nums;
}
.mirror-drawer-stats {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
    margin-bottom: 0.85rem;
}
.mirror-drawer-stat {
    background: var(--mirror-surface);
    border-radius: 8px;
    padding: 0.25rem 0.55rem;
    font-size: 0.75rem;
    display: inline-flex; gap: 0.35rem; align-items: baseline;
    color: var(--mirror-ink-mute);
}
.mirror-drawer-stat em { font-style: normal; color: var(--mirror-ink-mute); }
.mirror-drawer-stat strong { color: var(--mirror-ink); font-variant-numeric: tabular-nums; }
.mirror-drawer-linked {
    border-top: 1px dashed rgba(47,107,255,0.2);
    padding-top: 0.6rem;
    margin-top: 0.3rem;
}
.mirror-drawer-linked-list {
    list-style: none; padding: 0; margin: 0.3rem 0 0;
    display: grid; gap: 0.35rem;
}
.mirror-drawer-linked-list li {
    display: grid; grid-template-columns: 22px 1fr auto;
    gap: 0.5rem; align-items: center;
    font-size: 0.8rem; line-height: 1.5;
    color: var(--mirror-ink-dim);
}
.mirror-drawer-linked-dot {
    width: 22px; height: 22px; border-radius: 6px;
    color: #fff; display: inline-flex;
    align-items: center; justify-content: center;
    font-size: 0.75rem; font-weight: 700;
}
.mirror-drawer-linked-status {
    font-size: 0.7rem; color: var(--mirror-ink-mute);
    padding: 0.1rem 0.4rem; background: var(--mirror-surface); border-radius: 999px;
}
.mirror-drawer-section-title {
    margin: 0.8rem 0 0;
    font-size: 0.75rem; font-weight: 700;
    color: var(--mirror-ink-mute);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* 追问点上下文专属 */
.mirror-drawer-point-head {
    display: flex; gap: 0.75rem;
    align-items: center; flex-wrap: wrap;
    margin-bottom: 0.6rem;
}
.mirror-drawer-point-trigger {
    display: inline-flex; align-items: center; gap: 0.35rem;
    padding: 0.25rem 0.65rem; border-radius: 999px;
    color: #fff; font-size: 0.72rem; font-weight: 700;
}
.mirror-drawer-point-trigger-icon { font-size: 0.9rem; }
.mirror-drawer-point-status {
    font-size: 0.72rem; color: var(--mirror-ink-mute);
    margin-left: auto;
}
.mirror-drawer-point-summary {
    margin: 0 0 0.75rem; font-size: 0.95rem; line-height: 1.65;
    color: var(--mirror-ink); font-weight: 600;
}
.mirror-drawer-point-trigger-line {
    margin: 0 0 0.7rem; font-size: 0.8rem; color: var(--mirror-ink-dim);
    background: var(--mirror-surface); padding: 0.4rem 0.6rem; border-radius: 8px;
    line-height: 1.5;
}
.mirror-drawer-point-trigger-line em {
    font-style: normal; font-weight: 700;
    color: var(--mirror-ink-mute); margin-right: 0.4rem;
}
.mirror-drawer-point-axis {
    display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap;
    font-size: 0.78rem; color: var(--mirror-ink-mute);
    padding: 0.4rem 0.65rem; background: var(--mirror-surface); border-radius: 8px;
}
.mirror-drawer-point-axis strong { color: var(--mirror-ink); font-weight: 700; }
.mirror-drawer-point-axis em { font-style: normal; color: var(--mirror-ink-dim); margin-left: auto; }

/* ── Dashboard 第一屏认知快照 ── */
.mirror-snapshot-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}
@media (max-width: 960px) {
    .mirror-snapshot-grid { grid-template-columns: 1fr; }
}
.mirror-snapshot-meta {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}
@media (max-width: 720px) {
    .mirror-snapshot-meta { grid-template-columns: repeat(2, 1fr); }
}
.mirror-snapshot-tile {
    background: var(--mirror-surface);
    border-radius: 12px;
    padding: 0.75rem 1rem;
}
.mirror-snapshot-tile-label {
    font-size: 0.72rem;
    color: var(--mirror-ink-mute);
    display: block;
    margin-bottom: 0.25rem;
}
.mirror-snapshot-tile-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--mirror-ink);
}

/* ── Report 页主图骨架 ── */
.mirror-report-hero {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}
@media (max-width: 960px) {
    .mirror-report-hero { grid-template-columns: 1fr; }
}

.mirror-summary-kicker {
    margin: 0 0 0.35rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--mirror-accent-ai);
}
.mirror-summary-intro {
    margin: 0 0 1rem;
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--mirror-ink-dim);
}
.mirror-summary-lead {
    margin: 0;
    font-size: 1rem;
    line-height: 1.9;
    color: var(--mirror-ink-dim);
}
.mirror-summary-lead strong { color: var(--mirror-ink); }
.mirror-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.25rem;
}
@media (max-width: 960px) {
    .mirror-summary-grid { grid-template-columns: 1fr; }
}
.mirror-summary-card {
    border-radius: 14px;
    padding: 1rem 1.05rem;
    background: var(--mirror-surface);
    border: 1px solid rgba(136, 146, 166, 0.15);
}
.mirror-summary-card.is-anchor { border-top: 3px solid var(--mirror-accent-peer); }
.mirror-summary-card.is-hold { border-top: 3px solid var(--mirror-accent-warn); }
.mirror-summary-card.is-tension { border-top: 3px solid var(--mirror-accent-conflict); }
.mirror-summary-card-kicker {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--mirror-ink-mute);
}
.mirror-summary-card-title {
    margin: 0 0 0.8rem;
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--mirror-ink);
}
.mirror-summary-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.7rem;
}
.mirror-summary-list li {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--mirror-ink-dim);
}
.mirror-summary-next {
    margin-top: 1rem;
    padding: 1rem 1.1rem;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(47, 107, 255, 0.08), rgba(231, 111, 81, 0.06));
    border: 1px solid rgba(47, 107, 255, 0.12);
}
.mirror-summary-next-title {
    margin: 0 0 0.45rem;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--mirror-ink);
}
.mirror-summary-next p {
    margin: 0;
    line-height: 1.75;
    color: var(--mirror-ink-dim);
}
.mirror-summary-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}
@media (max-width: 720px) {
    .mirror-summary-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.mirror-summary-metric {
    background: var(--mirror-surface);
    border-radius: 12px;
    padding: 0.85rem 0.95rem;
}
.mirror-summary-metric-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--mirror-ink-mute);
}
.mirror-summary-metric-value {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--mirror-ink);
}
.mirror-module-copy {
    display: grid;
    gap: 1.15rem;
}
.mirror-module-section {
    display: grid;
    gap: 0.7rem;
}
.mirror-module-section-title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}
.mirror-module-paragraph {
    margin: 0;
    line-height: 1.8;
    color: var(--text-secondary);
}
.mirror-module-detail-list {
    display: grid;
    gap: 0.8rem;
}
.mirror-module-detail-item {
    margin: 0;
    padding-left: 1rem;
    border-left: 3px solid var(--primary-color);
    line-height: 1.75;
    color: var(--text-secondary);
}
.mirror-module-rec-list {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--text-secondary);
}
.mirror-module-rec-list li {
    margin-bottom: 0.7rem;
    line-height: 1.7;
}

/* ── Index 页：样例结果入口 ── */
.auth-demo-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.35rem;
    padding: 0.95rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #f8fafc;
    text-align: left;
    font-size: 0.85rem;
    color: #64748b;
}
.auth-demo-cta a {
    color: #0f2742;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}
.auth-demo-cta a:hover { text-decoration: underline; }

@media (max-width: 520px) {
    .auth-demo-cta {
        display: block;
    }

    .auth-demo-cta a {
        display: inline-block;
        margin-top: 0.35rem;
        white-space: normal;
    }
}