/* GoMind Website Styles */
/* Modern, clean design with professional aesthetics */

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

:root {
    /* Colors */
    --primary-color: #4a90e2;
    --primary-dark: #357abd;
    --primary-light: #6ba5e7;
    --secondary-color: #50c878;
    --accent-color: #ff6b6b;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-family-zh: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html[lang="zh"] body {
    font-family: var(--font-family-zh);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===========================
   Navigation Bar
   =========================== */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.nav-menu a:hover {
    color: var(--primary-color);
    background-color: var(--bg-light);
}

.lang-switch {
    border: 2px solid var(--primary-color);
    color: var(--primary-color) !important;
    padding: 0.4rem 1rem !important;
}

.lang-switch:hover {
    background-color: var(--primary-color) !important;
    color: var(--bg-white) !important;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--bg-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

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

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
}

.btn-download {
    width: 100%;
    margin-top: var(--spacing-sm);
}

/* ===========================
   Section Titles
   =========================== */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
}

/* ===========================
   Features Section
   =========================== */
.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===========================
   Capabilities Section
   =========================== */
.capabilities {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.capability {
    padding: var(--spacing-md);
    background-color: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.capability h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.capability p {
    color: var(--text-light);
}

/* ===========================
   Use Cases Section
   =========================== */
.use-cases {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.use-case {
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    text-align: center;
}

.use-case h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.use-case p {
    color: var(--text-light);
}

/* ===========================
   Comparison Section
   =========================== */
.comparison {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.comparison-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--text-light);
}

.comparison-table {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
}

.comparison-table thead {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.comparison-table th {
    font-weight: 600;
}

.comparison-table tbody tr:nth-child(even) {
    background-color: var(--bg-light);
}

.comparison-table tbody tr:hover {
    background-color: #e3f2fd;
}

.comparison-table td:first-child {
    font-weight: 600;
    color: var(--text-dark);
}

/* ===========================
   CTA Section
   =========================== */
.cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--bg-white);
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.cta-note {
    margin-top: var(--spacing-sm);
    font-size: 0.95rem;
    opacity: 0.85;
}

/* ===========================
   Download Page Styles
   =========================== */
.download-hero,
.privacy-hero,
.versions-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--bg-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.download-hero h1,
.privacy-hero h1,
.versions-hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
}

.downloads {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.download-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.download-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--bg-light);
}

.platform-icon {
    font-size: 3rem;
}

.platform-info h2 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.platform-desc {
    color: var(--text-light);
    font-size: 0.95rem;
}

.download-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.detail-item {
    flex: 1;
    min-width: 150px;
}

.detail-label {
    font-weight: 600;
    color: var(--text-light);
    margin-right: 0.5rem;
}

.detail-value {
    color: var(--text-dark);
    font-weight: 500;
}

.download-note {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

.android-downloads {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.android-downloads .btn {
    flex: 1;
}

.download-source-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    margin-top: var(--spacing-sm);
}

.download-source-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--bg-light);
    border-radius: var(--radius-md);
}

.download-source-label {
    color: var(--text-dark);
    font-weight: 600;
}

.download-source-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.45rem;
}

.download-source-link {
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.download-source-link:hover {
    text-decoration: underline;
}

/* ===========================
   Instructions Section
   =========================== */
.instructions {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.instructions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.instruction-card {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.instruction-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.instruction-card ol {
    margin-left: var(--spacing-md);
    color: var(--text-light);
}

.instruction-card li {
    margin-bottom: 0.5rem;
}

.instruction-card code {
    background-color: var(--bg-white);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
}

/* ===========================
   Requirements Section
   =========================== */
.requirements {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.requirements-table {
    max-width: 1000px;
    margin: 0 auto;
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.requirements-table table {
    width: 100%;
    border-collapse: collapse;
}

.requirements-table th,
.requirements-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
}

.requirements-table thead {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.requirements-table tbody tr:nth-child(even) {
    background-color: var(--bg-light);
}

.requirements-table tbody tr:hover {
    background-color: #e3f2fd;
}

/* ===========================
   Support Section
   =========================== */
.support {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.support-card {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.support-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.support-card p {
    color: var(--text-light);
}

.support-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.support-card a:hover {
    text-decoration: underline;
}

/* ===========================
   Privacy Page Styles
   =========================== */
.privacy-content {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.privacy-text {
    max-width: 900px;
    margin: 0 auto;
}

.privacy-text h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.privacy-text h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.privacy-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
    line-height: 1.8;
}

.privacy-text ul {
    margin: var(--spacing-sm) 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-light);
}

.privacy-text li {
    margin-bottom: 0.5rem;
}

.privacy-text a {
    color: var(--primary-color);
    text-decoration: none;
}

.privacy-text a:hover {
    text-decoration: underline;
}

.privacy-summary {
    background-color: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    margin-top: var(--spacing-lg);
}

.privacy-summary h3 {
    color: var(--primary-color);
    margin-top: 0 !important;
}

/* ===========================
   Versions Page Styles
   =========================== */
.versions {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-light);
}

.version-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.version-card.current {
    border: 3px solid var(--secondary-color);
}

.version-header {
    border-bottom: 2px solid var(--bg-light);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.version-badge {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--bg-white);
    padding: 0.3rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.version-header h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.version-date {
    color: var(--text-light);
    font-size: 0.95rem;
}

.version-content h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.version-content ul {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.version-content li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* ===========================
   Roadmap Section
   =========================== */
.roadmap {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-white);
}

.roadmap-content {
    max-width: 900px;
    margin: 0 auto;
}

.roadmap-content h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.roadmap-content p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.roadmap-list {
    margin: var(--spacing-sm) 0 var(--spacing-md) var(--spacing-md);
}

.roadmap-list li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
    line-height: 1.6;
}

.roadmap-note {
    background-color: var(--bg-light);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

/* ===========================
   Footer
   =========================== */
.footer {
    background-color: var(--text-dark);
    color: var(--bg-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--bg-white);
}

.footer-section p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-sm);
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        justify-content: center;
    }
    
    .features-grid,
    .capabilities-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
    
    .download-header {
        flex-direction: column;
        text-align: center;
    }
    
    .android-downloads {
        flex-direction: column;
    }

    .download-source-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .download-source-actions {
        justify-content: flex-start;
    }
    
    .instructions-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .nav-brand h1 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.7rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .btn-large {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
}

/* ===========================
   Utility Classes
   =========================== */
.text-center {
    text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

/* ===========================
   Landing page refresh
   =========================== */
.landing-page {
    --landing-ink: #24211e;
    --landing-muted: #746d65;
    --landing-paper: #fffaf3;
    --landing-warm: #f7eee3;
    --landing-orange: #f15b32;
    --landing-orange-dark: #c53f20;
    --landing-blue: #e8f0f8;
    --landing-green: #e8f1e9;
    --landing-line: rgba(36, 33, 30, 0.13);
    --landing-container: 1180px;
    margin: 0;
    color: var(--landing-ink);
    background:
        radial-gradient(circle at 8% 5%, rgba(255, 184, 119, 0.25), transparent 26rem),
        linear-gradient(180deg, #fffaf3 0%, #f9f1e8 45%, #fffaf5 100%);
    font-family: 'DM Sans', 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
}

.landing-page *,
.landing-page *::before,
.landing-page *::after {
    box-sizing: border-box;
}

.landing-page a {
    color: inherit;
    text-decoration: none;
}

.landing-page img {
    max-width: 100%;
}

.landing-container {
    width: min(var(--landing-container), calc(100% - 48px));
    margin: 0 auto;
}

.landing-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(36, 33, 30, 0.08);
    background: rgba(255, 250, 243, 0.82);
    backdrop-filter: blur(18px);
}

.landing-nav-inner {
    display: flex;
    min-height: 76px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.landing-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'Manrope', sans-serif;
    font-size: 1.18rem;
    font-weight: 800;
    letter-spacing: -0.05em;
}

.landing-brand img {
    width: 38px;
    height: 38px;
    border-radius: 11px;
}

.landing-menu {
    display: flex;
    align-items: center;
    gap: 26px;
    color: var(--landing-muted);
    font-size: 0.9rem;
}

.landing-menu a {
    transition: color 160ms ease;
}

.landing-menu a:hover {
    color: var(--landing-ink);
}

.landing-menu .landing-language {
    padding: 9px 13px;
    border: 1px solid var(--landing-line);
    border-radius: 999px;
    color: var(--landing-ink);
}

.landing-announcement {
    position: relative;
    z-index: 5;
    background: var(--landing-accent, #f05a28);
    color: #fff;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: center;
}

.landing-announcement a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 11px 16px;
    color: #fff;
    text-decoration: none;
    transition: background 160ms ease;
}

.landing-announcement a:hover {
    background: rgba(0, 0, 0, 0.12);
}

.landing-announcement span {
    transition: transform 160ms ease;
}

.landing-announcement a:hover span {
    transform: translateX(4px);
}

.landing-hero {
    padding: 84px 0 100px;
}

.landing-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.83fr) minmax(480px, 1.17fr);
    align-items: center;
    gap: 74px;
}

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

.landing-kicker,
.landing-overline {
    margin: 0;
    color: var(--landing-orange-dark);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    line-height: 1.4;
    text-transform: uppercase;
}

.landing-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.landing-kicker span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--landing-orange);
    box-shadow: 0 0 0 5px rgba(241, 91, 50, 0.12);
}

.landing-page h1,
.landing-page h2,
.landing-page h3,
.landing-page p {
    margin-top: 0;
}

.landing-page h1,
.landing-page h2,
.landing-page h3 {
    font-family: 'Manrope', 'Microsoft YaHei', sans-serif;
}

.landing-page h1 em,
.landing-page h2 em {
    color: var(--landing-orange);
    font-style: normal;
}

.landing-page h1 {
    max-width: 560px;
    margin: 24px 0 22px;
    font-size: clamp(3.4rem, 6vw, 6.15rem);
    font-weight: 800;
    letter-spacing: -0.085em;
    line-height: 0.96;
}

.landing-lead {
    max-width: 500px;
    margin-bottom: 0;
    color: var(--landing-muted);
    font-size: 1.08rem;
    line-height: 1.8;
}

.landing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 31px;
}

.landing-button {
    display: inline-flex;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 13px 20px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 700;
    transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.landing-button:hover {
    transform: translateY(-2px);
}

.landing-button span {
    font-size: 1.1rem;
    line-height: 1;
}

.landing-button-primary {
    color: #fff;
    background: var(--landing-orange);
    box-shadow: 0 13px 28px rgba(197, 63, 32, 0.2);
}

.landing-button-primary:hover {
    background: var(--landing-orange-dark);
}

.landing-button-quiet {
    border-color: var(--landing-line);
    color: var(--landing-ink);
    background: rgba(255, 255, 255, 0.36);
}

.landing-platforms {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    margin-top: 44px;
    color: #958d84;
    font-size: 0.77rem;
}

.landing-platforms i {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #c5bdb3;
}

.landing-hero-visual {
    position: relative;
    min-width: 0;
}

.landing-hero-glow {
    position: absolute;
    width: 460px;
    height: 460px;
    right: 1%;
    top: -8%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 177, 83, 0.33), rgba(255, 177, 83, 0) 68%);
    pointer-events: none;
}

.landing-screen-frame {
    position: relative;
    z-index: 1;
    overflow: hidden;
    padding: 10px 10px 0;
    border: 1px solid rgba(36, 33, 30, 0.16);
    border-radius: 24px;
    background: #f0ebe4;
    box-shadow: 0 28px 70px rgba(65, 46, 27, 0.2);
    transform: rotate(1.2deg);
}

.landing-window-bar {
    display: flex;
    height: 28px;
    align-items: center;
    gap: 5px;
    padding: 0 8px 8px;
}

.landing-window-bar span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #d8cfc4;
}

.landing-window-bar span:first-child {
    background: #ef9474;
}

.landing-window-bar small {
    margin-left: 8px;
    color: #9a9187;
    font-size: 0.62rem;
    letter-spacing: 0.04em;
}

.landing-screen-frame img {
    width: 100%;
    border-radius: 13px 13px 0 0;
}

.landing-float {
    position: absolute;
    z-index: 2;
    max-width: 190px;
    padding: 13px 15px;
    border: 1px solid rgba(36, 33, 30, 0.1);
    border-radius: 15px;
    background: rgba(255, 252, 247, 0.92);
    box-shadow: 0 14px 35px rgba(65, 46, 27, 0.14);
    transform: rotate(-2deg);
}

.landing-float strong,
.landing-float span {
    display: block;
}

.landing-float strong {
    margin-bottom: 4px;
    font-family: 'Manrope', sans-serif;
    font-size: 0.84rem;
}

.landing-float span {
    color: var(--landing-muted);
    font-size: 0.72rem;
    line-height: 1.45;
}

.landing-float-ai {
    left: -30px;
    bottom: 16%;
}

.landing-float-layout {
    right: -25px;
    top: 13%;
    transform: rotate(3deg);
}

.landing-section {
    padding: 116px 0;
}

.landing-section-intro {
    border-top: 1px solid rgba(36, 33, 30, 0.08);
}

.landing-section-heading {
    max-width: 650px;
}

.landing-section-heading h2,
.landing-dark-heading h2,
.landing-download h2 {
    margin: 17px 0 18px;
    font-size: clamp(2.5rem, 4.7vw, 4.4rem);
    font-weight: 800;
    letter-spacing: -0.075em;
    line-height: 0.99;
}

.landing-section-heading > p:last-child,
.landing-dark-heading > p:last-child {
    max-width: 530px;
    margin-bottom: 0;
    color: var(--landing-muted);
    font-size: 1rem;
    line-height: 1.75;
}

.landing-story-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 66px;
}

.landing-story-card {
    position: relative;
    min-height: 292px;
    overflow: hidden;
    padding: 26px 25px 24px;
    border-radius: 22px;
}

.landing-story-orange { background: #fce9dd; }
.landing-story-blue { background: var(--landing-blue); }
.landing-story-green { background: var(--landing-green); }

.landing-card-number {
    display: block;
    margin-bottom: 62px;
    color: rgba(36, 33, 30, 0.48);
    font-family: 'Manrope', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.landing-story-card h3 {
    margin-bottom: 10px;
    font-size: 1.27rem;
    letter-spacing: -0.04em;
}

.landing-story-card p {
    max-width: 330px;
    margin-bottom: 0;
    color: rgba(36, 33, 30, 0.68);
    font-size: 0.89rem;
    line-height: 1.7;
}

.landing-card-line {
    position: absolute;
    width: 115px;
    height: 115px;
    right: -34px;
    bottom: -42px;
    border: 1px solid rgba(36, 33, 30, 0.15);
    border-radius: 50%;
}

.landing-card-line::after {
    position: absolute;
    width: 75px;
    height: 75px;
    top: 19px;
    left: 19px;
    border: 1px solid rgba(36, 33, 30, 0.13);
    border-radius: 50%;
    content: '';
}

.landing-capabilities {
    color: #f8f1e9;
    background: #25221f;
}

.landing-dark-heading {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 42px;
    align-items: end;
}

.landing-dark-heading .landing-overline {
    grid-column: 1 / -1;
    color: #f18b63;
    margin-bottom: -24px;
}

.landing-dark-heading h2 {
    margin-bottom: 0;
}

.landing-dark-heading h2 em {
    color: #f18b63;
}

.landing-dark-heading > p:last-child {
    color: rgba(248, 241, 233, 0.64);
    padding-bottom: 5px;
}

.landing-capability-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin-top: 72px;
    border-top: 1px solid rgba(248, 241, 233, 0.18);
}

.landing-capability-grid article {
    min-height: 275px;
    padding: 25px 24px 24px 0;
    border-right: 1px solid rgba(248, 241, 233, 0.18);
}

.landing-capability-grid article + article {
    padding-left: 24px;
}

.landing-capability-grid article:last-child {
    border-right: 0;
}

.landing-capability-mark {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    margin-bottom: 50px;
    border: 1px solid rgba(248, 241, 233, 0.25);
    border-radius: 50%;
    color: #f18b63;
    font-family: 'Manrope', sans-serif;
    font-size: 0.82rem;
}

.landing-capability-grid h3 {
    margin-bottom: 10px;
    font-size: 1.02rem;
    letter-spacing: -0.03em;
}

.landing-capability-grid p {
    margin-bottom: 0;
    color: rgba(248, 241, 233, 0.62);
    font-size: 0.86rem;
    line-height: 1.7;
}

.landing-workspace {
    background: #fffaf5;
}

.landing-heading-row {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 40px;
    max-width: none;
}

.landing-heading-row > p {
    max-width: 330px;
    padding-bottom: 7px;
}

.landing-workspace-grid {
    display: grid;
    grid-template-columns: 1.22fr 0.78fr;
    gap: 16px;
    align-items: stretch;
    margin-top: 62px;
}

.landing-image-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    margin: 0;
    border: 1px solid var(--landing-line);
    border-radius: 21px;
    background: #f5eee6;
}

.landing-image-card img {
    width: 100%;
    flex: 1;
    min-height: 0;
    object-fit: cover;
    object-position: center top;
}

.landing-image-wide img {
    aspect-ratio: 1.55;
}

.landing-image-tall img {
    aspect-ratio: 1.04;
}

.landing-image-card figcaption {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 18px 20px 20px;
}

.landing-image-card figcaption strong {
    font-family: 'Manrope', sans-serif;
    font-size: 0.95rem;
}

.landing-image-card figcaption span {
    color: var(--landing-muted);
    font-size: 0.82rem;
    line-height: 1.55;
}

.landing-facts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid var(--landing-line);
    color: var(--landing-muted);
    font-size: 0.81rem;
}

.landing-facts span {
    display: flex;
    align-items: baseline;
    gap: 7px;
}

.landing-facts strong {
    color: var(--landing-ink);
    font-family: 'Manrope', sans-serif;
    font-size: 1.12rem;
}

.landing-download {
    color: #fff8ef;
    background: var(--landing-orange);
}

.landing-download-inner {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 36px;
}

.landing-download .landing-overline {
    color: rgba(255, 248, 239, 0.72);
}

.landing-download h2 {
    margin-bottom: 18px;
}

.landing-download h2 em {
    color: #2b2420;
}

.landing-download p:last-child {
    max-width: 420px;
    margin-bottom: 0;
    color: rgba(255, 248, 239, 0.78);
    line-height: 1.7;
}

.landing-download-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    min-width: 210px;
}

.landing-button-light {
    color: var(--landing-ink);
    background: #fff8ef;
    box-shadow: 0 14px 30px rgba(108, 40, 19, 0.18);
}

.landing-text-link {
    color: rgba(255, 248, 239, 0.84);
    font-size: 0.88rem;
    font-weight: 700;
}

.landing-text-link span {
    margin-left: 7px;
}

.landing-footer {
    padding: 38px 0 45px;
    color: var(--landing-muted);
    background: #fffaf5;
}

.landing-footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr auto;
    gap: 30px;
    align-items: end;
}

.landing-footer .landing-brand {
    color: var(--landing-ink);
    font-size: 1rem;
}

.landing-footer .landing-brand img {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.landing-footer p {
    margin: 12px 0 0;
    font-size: 0.8rem;
}

.landing-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: flex-end;
    font-size: 0.8rem;
}

.landing-footer-links a:hover {
    color: var(--landing-ink);
}

.landing-footer .landing-copyright {
    margin: 0;
    white-space: nowrap;
}

.landing-page-zh .landing-kicker,
.landing-page-zh .landing-overline {
    letter-spacing: 0.08em;
}

.landing-page-zh h1,
.landing-page-zh h2,
.landing-page-zh h3,
.landing-page-zh p,
.landing-page-zh .landing-menu,
.landing-page-zh .landing-button,
.landing-page-zh .landing-footer {
    font-family: 'DM Sans', 'Microsoft YaHei', 'PingFang SC', sans-serif;
}

.landing-page-zh h1,
.landing-page-zh h2,
.landing-page-zh h3 {
    letter-spacing: -0.06em;
}

@media (max-width: 1000px) {
    .landing-hero-grid {
        grid-template-columns: 1fr;
        gap: 58px;
    }

    .landing-hero-copy {
        max-width: 680px;
    }

    .landing-hero-visual {
        width: min(100%, 760px);
        margin: 0 auto;
    }

    .landing-capability-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .landing-capability-grid article:nth-child(2) {
        border-right: 0;
    }

    .landing-capability-grid article:nth-child(n + 3) {
        border-top: 1px solid rgba(248, 241, 233, 0.18);
    }

    .landing-capability-grid article:nth-child(3) {
        padding-left: 0;
    }

    .landing-footer-inner {
        grid-template-columns: 1fr 1fr;
    }

    .landing-footer .landing-copyright {
        grid-column: 1 / -1;
    }
}

@media (max-width: 700px) {
    .landing-container {
        width: min(var(--landing-container), calc(100% - 32px));
    }

    .landing-nav-inner {
        min-height: 68px;
    }

    .landing-menu {
        gap: 12px;
        font-size: 0.76rem;
    }

    .landing-menu a:nth-child(1),
    .landing-menu a:nth-child(2),
    .landing-menu a:nth-child(3) {
        display: none;
    }

    .landing-hero {
        padding: 66px 0 70px;
    }

    .landing-page h1 {
        font-size: clamp(3.1rem, 15vw, 5rem);
    }

    .landing-lead {
        font-size: 1rem;
        line-height: 1.7;
    }

    .landing-platforms {
        margin-top: 32px;
        gap: 6px;
        font-size: 0.68rem;
    }

    .landing-float {
        max-width: 145px;
        padding: 10px 11px;
    }

    .landing-float span {
        font-size: 0.64rem;
    }

    .landing-float-ai {
        left: -7px;
        bottom: 7%;
    }

    .landing-float-layout {
        right: -5px;
        top: 7%;
    }

    .landing-section {
        padding: 78px 0;
    }

    .landing-section-heading h2,
    .landing-dark-heading h2,
    .landing-download h2 {
        font-size: clamp(2.35rem, 12vw, 3.6rem);
    }

    .landing-story-grid,
    .landing-capability-grid,
    .landing-workspace-grid {
        grid-template-columns: 1fr;
        margin-top: 42px;
    }

    .landing-story-card {
        min-height: 240px;
    }

    .landing-card-number {
        margin-bottom: 40px;
    }

    .landing-dark-heading {
        display: block;
    }

    .landing-dark-heading .landing-overline {
        margin-bottom: 0;
    }

    .landing-dark-heading > p:last-child {
        margin-top: 25px;
    }

    .landing-capability-grid {
        margin-top: 42px;
    }

    .landing-capability-grid article,
    .landing-capability-grid article + article,
    .landing-capability-grid article:nth-child(3) {
        min-height: 0;
        padding: 22px 0 25px;
        border-right: 0;
        border-top: 1px solid rgba(248, 241, 233, 0.18);
    }

    .landing-capability-grid article:first-child {
        border-top: 0;
    }

    .landing-capability-mark {
        margin-bottom: 24px;
    }

    .landing-heading-row {
        display: block;
    }

    .landing-heading-row > p {
        margin-top: 24px;
        padding-bottom: 0;
    }

    .landing-workspace-grid {
        gap: 14px;
    }

    .landing-image-wide img,
    .landing-image-tall img {
        aspect-ratio: 1.35;
    }

    .landing-facts {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 19px 12px;
        line-height: 1.45;
    }

    .landing-download-inner {
        display: block;
    }

    .landing-download-actions {
        margin-top: 34px;
    }

    .landing-footer-inner {
        display: block;
    }

    .landing-footer-links {
        justify-content: flex-start;
        margin-top: 28px;
    }

    .landing-footer .landing-copyright {
        margin-top: 26px;
    }
}