/* ORBiTA 首页 — DeepSeek 风格 UI + 动画（仅 body.orbita-home） */

body.orbita-home {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: #ffffff;
    color: #111111;
    line-height: 1.5;
    overflow-x: hidden;
}

body.orbita-home * {
    box-sizing: border-box;
}

body.orbita-home .ob-cursor {
    width: 32px;
    height: 32px;
    border: 1.5px solid rgba(0, 0, 0, 0.15);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
    transform: translate(-50%, -50%);
}

@media (max-width: 1024px) {
    body.orbita-home .ob-cursor {
        display: none;
    }
}

body.orbita-home .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 48px;
}

body.orbita-home .ob-navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

body.orbita-home .ob-navbar.scrolled {
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: rgba(0, 0, 0, 0.05);
}

body.orbita-home .ob-nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 48px;
    gap: 24px;
}

body.orbita-home .ob-logo {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.3px;
    color: #111;
    text-decoration: none;
    flex-shrink: 0;
}

body.orbita-home .ob-nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}

body.orbita-home .ob-nav-links a {
    text-decoration: none;
    font-size: 15px;
    font-weight: 450;
    color: #2c2c2c;
    transition: color 0.2s;
}

body.orbita-home .ob-nav-links a:hover {
    color: #000;
}

body.orbita-home .ob-nav-btn {
    background: #111;
    color: #fff !important;
    padding: 8px 22px;
    border-radius: 40px;
    transition: all 0.25s !important;
}

body.orbita-home .ob-nav-btn:hover {
    background: #2a2a2a;
    transform: scale(0.98);
}

body.orbita-home .ob-nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

body.orbita-home .ob-nav-nick {
    font-size: 13px;
    color: #6b7280;
    max-width: 8em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

body.orbita-home .ob-mobile-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    padding: 4px 8px;
}

body.orbita-home .ob-btn-primary {
    display: inline-block;
    background: #111;
    color: #fff;
    padding: 16px 36px;
    border-radius: 48px;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    letter-spacing: -0.2px;
    font-family: inherit;
}

body.orbita-home .ob-btn-primary:hover:not(:disabled) {
    background: #2a2a2a;
    transform: translateY(-2px);
}

body.orbita-home .ob-btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

body.orbita-home .ob-btn-outline {
    display: inline-block;
    background: transparent;
    border: 1px solid #e0e0e0;
    color: #2c2c2c;
    padding: 16px 36px;
    border-radius: 48px;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.25s;
    cursor: pointer;
    font-family: inherit;
}

body.orbita-home .ob-btn-outline:hover {
    border-color: #111;
    color: #111;
    background: #fafafa;
}

body.orbita-home .ob-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
}

body.orbita-home .ob-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

body.orbita-home .ob-hero-text h1 {
    font-size: clamp(40px, 5vw, 72px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -2px;
    color: #111;
    margin: 0 0 28px;
}

body.orbita-home .ob-hero-text p.ob-lead {
    font-size: 18px;
    color: #5a5a5a;
    line-height: 1.6;
    margin: 0 0 40px;
    max-width: 520px;
}

body.orbita-home .ob-hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 32px;
}

body.orbita-home .ob-portal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    margin-bottom: 40px;
    font-size: 14px;
}

body.orbita-home .ob-portal-links a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}

body.orbita-home .ob-portal-links a:hover {
    text-decoration: underline;
}

body.orbita-home .ob-portal-muted {
    color: #8a8a8a;
    font-size: 14px;
}

body.orbita-home .ob-stats {
    display: flex;
    gap: 56px;
    border-top: 1px solid #f0f0f0;
    padding-top: 40px;
    flex-wrap: wrap;
}

body.orbita-home .ob-stat-item h3 {
    font-size: 40px;
    font-weight: 600;
    letter-spacing: -1px;
    color: #111;
    margin: 0;
}

body.orbita-home .ob-stat-item p {
    font-size: 13px;
    color: #8a8a8a;
    margin: 6px 0 0;
}

body.orbita-home .ob-hero-visual {
    position: relative;
    border-radius: 32px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    box-shadow: 0 25px 45px -12px rgba(0, 0, 0, 0.1);
}

body.orbita-home .ob-hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

body.orbita-home .ob-hero-visual:hover .ob-hero-image {
    transform: scale(1.03);
}

body.orbita-home .ob-section {
    padding: 120px 0;
    border-bottom: 1px solid #f5f5f5;
}

body.orbita-home .ob-section:last-of-type {
    border-bottom: none;
}

body.orbita-home .ob-section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

body.orbita-home .ob-section-header h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 650;
    letter-spacing: -1px;
    margin: 0 0 20px;
    color: #111;
}

body.orbita-home .ob-section-header p {
    font-size: 18px;
    color: #5a5a5a;
    margin: 0;
}

body.orbita-home .ob-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

body.orbita-home .ob-feature-card {
    padding: 0 8px;
}

body.orbita-home .ob-feature-img {
    width: 56px;
    height: 56px;
    border-radius: 20px;
    object-fit: cover;
    margin-bottom: 28px;
}

body.orbita-home .ob-feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 12px;
    letter-spacing: -0.3px;
}

body.orbita-home .ob-feature-card p {
    font-size: 15px;
    color: #6a6a6a;
    line-height: 1.55;
    margin: 0;
}

body.orbita-home .ob-steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    text-align: left;
}

body.orbita-home .ob-step-num {
    font-size: 48px;
    font-weight: 600;
    color: #e0e0e0;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

body.orbita-home .ob-step h4 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 10px;
}

body.orbita-home .ob-step p {
    font-size: 14px;
    color: #6a6a6a;
    line-height: 1.5;
    margin: 0;
}

body.orbita-home .ob-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

body.orbita-home .ob-case-card {
    background: #fff;
    border-radius: 28px;
    overflow: hidden;
    transition: all 0.35s;
    border: 1px solid #f0f0f0;
}

body.orbita-home .ob-case-card:hover {
    transform: translateY(-6px);
    border-color: #e0e0e0;
    box-shadow: 0 20px 35px -12px rgba(0, 0, 0, 0.05);
}

body.orbita-home .ob-case-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s;
}

body.orbita-home .ob-case-card:hover .ob-case-img {
    transform: scale(1.03);
}

body.orbita-home .ob-case-content {
    padding: 28px;
}

body.orbita-home .ob-case-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 8px;
}

body.orbita-home .ob-case-content p {
    font-size: 14px;
    color: #6a6a6a;
    margin: 0;
}

body.orbita-home .ob-pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

body.orbita-home .ob-pricing-card {
    padding: 40px 32px;
    background: #fff;
    border-radius: 32px;
    border: 1px solid #f0f0f0;
    transition: all 0.25s;
}

body.orbita-home .ob-pricing-card.featured {
    border-color: #111;
    transform: scale(1.02);
}

body.orbita-home .ob-pricing-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 0 0 12px;
}

body.orbita-home .ob-price {
    font-size: 48px;
    font-weight: 650;
    letter-spacing: -1px;
    margin: 24px 0 20px;
}

body.orbita-home .ob-price span {
    font-size: 16px;
    font-weight: 400;
    color: #8a8a8a;
}

body.orbita-home .ob-pricing-card ul {
    list-style: none;
    margin: 24px 0 32px;
    padding: 0;
}

body.orbita-home .ob-pricing-card li {
    padding: 10px 0;
    font-size: 14px;
    color: #4a4a4a;
    border-bottom: 1px solid #f5f5f5;
}

body.orbita-home .ob-cta {
    background: #fafafc;
    border-radius: 48px;
    padding: 80px 64px;
    text-align: center;
}

body.orbita-home .ob-cta h2 {
    font-size: clamp(28px, 3vw, 44px);
    font-weight: 650;
    letter-spacing: -1px;
    margin: 0 0 20px;
}

body.orbita-home .ob-cta > .container > p,
body.orbita-home .ob-cta .ob-cta-lead {
    color: #5a5a5a;
    margin: 0 0 40px;
    font-size: 18px;
}

body.orbita-home .ob-cta-input {
    max-width: 640px;
    margin: 0 auto;
    text-align: left;
}

body.orbita-home .ob-cta-input label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #4a4a4a;
    margin-bottom: 10px;
}

body.orbita-home #orbita-input {
    width: 100%;
    padding: 18px 24px;
    border: 1px solid #e8e8e8;
    border-radius: 24px;
    font-size: 15px;
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
    background: #fff;
    transition: border-color 0.2s;
}

body.orbita-home #orbita-input:focus {
    outline: none;
    border-color: #aaa;
}

body.orbita-home .orbita-examples {
    margin-top: 16px;
    font-size: 13px;
    color: #6a6a6a;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 12px;
}

body.orbita-home .orbita-examples button {
    background: #fff;
    border: 1px solid #e8e8e8;
    color: #111;
    cursor: pointer;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.2s;
}

body.orbita-home .orbita-examples button:hover {
    border-color: #111;
    background: #fafafa;
}

body.orbita-home .ob-cta-actions {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px 24px;
}

body.orbita-home .ob-cta-hint {
    font-size: 13px;
    color: #8a8a8a;
}

body.orbita-home .orbita-error {
    color: #b91c1c;
    font-size: 14px;
    margin-top: 16px;
}

body.orbita-home .orbita-result {
    display: none;
    margin-top: 40px;
    padding: 32px;
    background: #fff;
    border-radius: 28px;
    border: 1px solid #eee;
    text-align: left;
    box-shadow: 0 12px 40px -20px rgba(0, 0, 0, 0.08);
}

body.orbita-home .orbita-result.visible {
    display: block;
    animation: ob-fade-up 0.6s cubic-bezier(0.2, 0.9, 0.4, 1.05) both;
}

body.orbita-home .orbita-result h2 {
    margin: 0 0 16px;
    font-size: 16px;
    font-weight: 600;
    color: #111;
}

body.orbita-home .orbita-result-body {
    font-size: 15px;
    line-height: 1.75;
    color: #2c2c2c;
    white-space: pre-wrap;
    word-break: break-word;
}

body.orbita-home .orbita-result-meta {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
    font-size: 13px;
    color: #8a8a8a;
}

body.orbita-home .ob-footer {
    padding: 80px 0 48px;
    background: #fff;
    border-top: 1px solid #f0f0f0;
}

body.orbita-home .ob-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 64px;
}

body.orbita-home .ob-footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    margin: 0 0 20px;
    color: #111;
}

body.orbita-home .ob-footer-col p,
body.orbita-home .ob-footer-col a {
    font-size: 14px;
    color: #7a7a7a;
    text-decoration: none;
    line-height: 1.9;
    display: block;
    margin: 0;
}

body.orbita-home .ob-footer-col a:hover {
    color: #111;
}

body.orbita-home .ob-copyright {
    text-align: center;
    font-size: 13px;
    color: #8a8a8a;
    padding-top: 40px;
    border-top: 1px solid #f0f0f0;
}

body.orbita-home .ob-fade-up {
    opacity: 0;
    transform: translateY(32px);
    transition: all 0.7s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

body.orbita-home .ob-fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes ob-fade-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1100px) {
    body.orbita-home .ob-hero-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    body.orbita-home .ob-features-grid,
    body.orbita-home .ob-steps-grid,
    body.orbita-home .ob-cases-grid,
    body.orbita-home .ob-pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    body.orbita-home .ob-footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 48px;
    }
}

@media (max-width: 780px) {
    body.orbita-home .container,
    body.orbita-home .ob-nav-inner {
        padding: 0 24px;
    }
    body.orbita-home .ob-nav-inner {
        position: relative;
    }
    body.orbita-home .ob-nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
        gap: 16px;
        border: 1px solid #f0f0f0;
        border-radius: 16px;
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
    }
    body.orbita-home .ob-nav-links.is-open {
        display: flex;
    }
    body.orbita-home .ob-mobile-toggle {
        display: block;
    }
    body.orbita-home .ob-features-grid,
    body.orbita-home .ob-steps-grid,
    body.orbita-home .ob-cases-grid,
    body.orbita-home .ob-pricing-grid,
    body.orbita-home .ob-footer-grid {
        grid-template-columns: 1fr;
    }
    body.orbita-home .ob-stats {
        flex-direction: column;
        gap: 24px;
    }
    body.orbita-home .ob-cta {
        padding: 48px 24px;
    }
    body.orbita-home .ob-pricing-card.featured {
        transform: none;
    }
}