.home-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #f0f7ff 0%, #fafbff 30%, #ffffff 60%, #fdf4ff 100%);
    position: relative;
    overflow: hidden;
}

.home-container::before {
    content: '';
    position: absolute;
    top: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37,99,235,0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-blob-1 20s ease-in-out infinite;
    pointer-events: none;
}

.home-container::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -150px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(124,58,237,0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-blob-2 25s ease-in-out infinite;
    pointer-events: none;
}

@keyframes float-blob-1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(80px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 60px) scale(0.95); }
}

@keyframes float-blob-2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-60px, 50px) scale(1.08); }
    66% { transform: translate(40px, -30px) scale(0.92); }
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 60px;
    background-color: rgba(255,255,255,0.5);
    backdrop-filter: blur(15px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    position: relative;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: bold;
}

.logo-img {
    width: 280px;
    height: auto;
    max-height: 50px;
    object-fit: contain;
    display: block;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    color: #2563eb;
}

.nav-links {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-link-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    border-radius: 8px;
    color: #6b7280;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
}

.nav-link-item:hover {
    color: #2563eb;
    background: #f3f4f6;
}

.nav-link-item svg {
    flex-shrink: 0;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    cursor: pointer;
}

.nav-dropdown-trigger svg:last-child {
    transition: transform 0.2s;
}

.nav-dropdown:hover .nav-dropdown-trigger svg:last-child {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12), 0 0 0 1px rgba(0,0,0,0.04);
    padding: 6px;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s, transform 0.15s;
    z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border-radius: 8px;
    color: #374151 !important;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.15s;
}

.nav-dropdown-menu a:hover {
    background: #f3f4f6;
    color: #2563eb !important;
}

.nav-dropdown-menu a:hover svg {
    color: #2563eb;
}

.nav-dropdown-menu a svg {
    color: #9ca3af;
    flex-shrink: 0;
}

.nav-dropdown-divider {
    height: 1px;
    background: #f3f4f6;
    margin: 4px 8px;
}

.hero-section {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 85vh;
    padding: 60px 20px;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(37,99,235,0.08) 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 480px;
    position: relative;
    z-index: 20;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #111827;
}

.highlight {
    color: #2563eb;
}

.gradient-text {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 100%;
    animation: gradientFlow 3s ease-in-out infinite, textReveal 1.5s ease-out forwards;
    opacity: 0;
}

@keyframes gradientFlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes textReveal {
    0% {
        opacity: 0;
        clip-path: inset(0 100% 0 0);
    }
    100% {
        opacity: 1;
        clip-path: inset(0 0% 0 0);
    }
}

.hero-description {
    font-size: 16px;
    color: #6b7280;
    margin-bottom: 28px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    margin-bottom: 36px;
}

.stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
}

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

.stat-number {
    font-size: 28px;
    font-weight: bold;
    color: #111827;
}

.stat-label {
    font-size: 13px;
    color: #6b7280;
    margin-top: 2px;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background-color: #e5e7eb;
}

.model-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 700px;
    height: 700px;
}

.model-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37,99,235,0.03) 0%, transparent 70%);
}

.circle-center-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 640px;
    height: 640px;
    border-radius: 50%;
    animation: rotate-orbit 30s linear infinite;
    will-change: transform;
}

@keyframes rotate-orbit {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.model-icons {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.model-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    margin-left: -22px;
    margin-top: -22px;
    transform: rotate(var(--rotation)) translateY(-295px) translateX(-50%);
}

.icon-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    animation: counter-rotate 30s linear infinite;
    will-change: transform;
}

@keyframes counter-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

.model-icon:hover {
    z-index: 5;
}

.model-icon:hover .ai-img {
    filter: drop-shadow(0 4px 12px rgba(37, 99, 235, 0.3));
    transform: scale(1.1);
}

.model-icon:hover .model-name {
    color: #2563eb;
}

.ai-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 8px;
    transition: all 0.2s ease;
    background: white;
    padding: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.model-name {
    font-size: 11px;
    font-weight: 500;
    color: #4b5563;
    white-space: nowrap;
    transition: all 0.2s ease;
    text-shadow: 0 1px 2px rgba(255,255,255,0.8);
}

/* CDN图标加载失败时的首字母兜底 */
.icon-fallback {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    color: white;
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.logo-fallback {
    font-size: 24px;
    font-weight: bold;
    color: #2563eb;
}

.features-section {
    max-width: 1200px;
    margin: 80px auto;
    padding: 0 40px;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 32px;
}

.section-title {
    text-align: center;
    font-size: 25px;
    font-weight: 700;
    margin-bottom: 5px;
    color: #111827;
    letter-spacing: -0.2px;
}

.section-subtitle {
    font-size: 12px;
    color: #6b7280;
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.55;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.feature-card {
    background: white;
    padding: 18px 16px;
    border-radius: 20px;
    border: 1px solid rgba(229,231,235,0.6);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: transparent;
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.feature-icon-wrapper {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s;
}

.feature-card:nth-child(1) .feature-icon-wrapper { background: #eff6ff; color: #3b82f6; }
.feature-card:nth-child(2) .feature-icon-wrapper { background: #f3f0ff; color: #8b5cf6; }
.feature-card:nth-child(3) .feature-icon-wrapper { background: #fdf2f8; color: #ec4899; }
.feature-card:nth-child(4) .feature-icon-wrapper { background: #ecfdf5; color: #10b981; }

.feature-card:hover .feature-icon-wrapper {
    transform: scale(1.08);
}

.feature-icon-wrapper .feature-icon {
    font-size: 17px;
    transition: transform 0.3s;
}

.feature-card:hover .feature-icon-wrapper .feature-icon {
    transform: scale(1.15);
}

.feature-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    margin: 0;
}

.feature-card p {
    color: #6b7280;
    font-size: 11px;
    line-height: 1.55;
}

.models-section {
    max-width: 1200px;
    margin: 48px auto 64px;
    padding: 0 40px 80px;
}

.models-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-end;
    gap: 14px;
    padding: 40px 20px 20px;
    max-width: 900px;
    margin: 0 auto;
}

.cloud-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 50px;
    background: white;
    border: 1px solid #e5e7eb;
    color: #374151;
    font-weight: 500;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.cloud-tag:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
    border-color: #3b82f6;
    z-index: 2;
}

.cloud-tag.tag-lg {
    font-size: 17px;
    padding: 13px 24px;
    font-weight: 600;
}

.cloud-tag.tag-md {
    font-size: 15px;
    padding: 11px 20px;
}

.cloud-tag.tag-sm {
    font-size: 13px;
    padding: 8px 15px;
}

.cloud-tag.tag-lg .model-tag-icon { width: 22px; height: 22px; }
.cloud-tag.tag-md .model-tag-icon { width: 19px; height: 19px; }
.cloud-tag.tag-sm .model-tag-icon { width: 16px; height: 16px; }

.model-tag-icon {
    border-radius: 4px;
    object-fit: contain;
    flex-shrink: 0;
}

.gallery-section {
    max-width: 1200px;
    margin: 16px auto 80px;
    padding: 0 40px 80px;
}

.gallery-masonry {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    grid-auto-flow: dense;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    break-inside: avoid;
    aspect-ratio: 1 / 1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.35);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.gallery-item:hover::after {
    opacity: 1;
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(15,23,42,0) 35%, rgba(15,23,42,0.72) 100%);
    z-index: 1;
    pointer-events: none;
}

.gallery-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -45%);
    z-index: 2;
    text-align: center;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
    transform: translate(-50%, -50%);
}

.gallery-model {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: 12px;
    margin-bottom: 0;
}

.gallery-prompt {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.footer {
    padding: 24px 40px;
    background: #f8fafc;
    border-top: 1px solid #e5e7eb;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #6b7280;
    font-size: 13px;
    line-height: 1;
}

.footer-brand {
    font-weight: 600;
    color: #374151;
    line-height: 1;
}

.footer-copyright {
    line-height: 1;
}

.footer-divider {
    color: #d1d5db;
    line-height: 1;
}

.footer-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.footer-links a {
    color: #6b7280;
    font-size: 13px;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #2563eb;
}

.footer-partner {
    color: #6b7280;
    font-size: 13px;
    line-height: 1;
}

.footer-partner a {
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-partner a:hover {
    color: #2563eb;
}

/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 520px;
    max-height: 80vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #f3f4f6;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    margin: 0;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: #f3f4f6;
    font-size: 20px;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: #e5e7eb;
    color: #111827;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: calc(80vh - 80px);
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: #f3f4f6;
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* 公告列表 */
.notice-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

/* 时间线竖线 */
.notice-list::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 24px;
    bottom: 24px;
    width: 2px;
    background: linear-gradient(180deg, #3b82f6 0%, #e5e7eb 100%);
    border-radius: 1px;
}

.notice-item {
    padding: 16px 16px 16px 44px;
    border-radius: 12px;
    transition: background 0.2s;
    cursor: default;
    position: relative;
}

.notice-item:hover {
    background: #f9fafb;
}

/* 时间线圆点 */
.notice-item::before {
    content: '';
    position: absolute;
    left: 9px;
    top: 22px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #d1d5db;
    z-index: 1;
}

.notice-item.new::before {
    border-color: #3b82f6;
    background: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.notice-item.update::before {
    border-color: #10b981;
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
}

.notice-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 8px;
    background: #eff6ff;
    color: #2563eb;
}

.notice-badge.update {
    background: #ecfdf5;
    color: #059669;
}

.notice-badge.notice {
    background: #fffbeb;
    color: #d97706;
}

/* badge前圆点 */
.notice-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.notice-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 6px 0;
}

.notice-content p {
    font-size: 13px;
    color: #6b7280;
    margin: 0 0 8px 0;
    line-height: 1.6;
}

.notice-date {
    font-size: 12px;
    color: #9ca3af;
}

/* 公告弹窗特殊样式 */
.notice-modal .modal-header {
    background: linear-gradient(135deg, #eff6ff 0%, #f0f0ff 100%);
    border-bottom: none;
    padding: 20px 24px 16px;
}

.notice-modal .modal-header h3 {
    font-size: 17px;
    font-weight: 700;
    background: linear-gradient(135deg, #1e40af, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.notice-modal .modal-body {
    padding: 8px 16px 24px;
}

/* 商务合作 */
.business-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.business-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #f9fafb;
    border-radius: 12px;
}

.business-icon {
    font-size: 24px;
}

.business-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 4px 0;
}

.business-item p {
    font-size: 14px;
    color: #3b82f6;
    margin: 0;
    font-weight: 500;
}

.business-note {
    padding: 16px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
    border-radius: 12px;
}

.business-note p {
    font-size: 14px;
    color: #374151;
    margin: 0 0 12px 0;
}

.business-note ul {
    margin: 0;
    padding-left: 20px;
}

.business-note li {
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 6px;
}

/* 提示词库 */
.prompt-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.prompt-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: #f9fafb;
    border-radius: 16px;
    border: 1px solid #e5e7eb;
    text-decoration: none;
    transition: all 0.3s;
}

.prompt-item:hover {
    border-color: #3b82f6;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

.prompt-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.prompt-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.prompt-content {
    flex: 1;
}

.prompt-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 6px 0;
}

.prompt-content p {
    font-size: 14px;
    color: #6b7280;
    margin: 0 0 8px 0;
    line-height: 1.5;
}

.prompt-link {
    font-size: 12px;
    color: #3b82f6;
    font-weight: 500;
}

/* 关于我们 */
.about-content {
    text-align: center;
}

.about-logo {
    width: 120px;
    height: auto;
    margin-bottom: 16px;
}

.about-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 12px 0;
}

.about-desc {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 24px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #f9fafb;
    border-radius: 10px;
    font-size: 13px;
    color: #374151;
    font-weight: 500;
}

@media (max-width: 768px) {
    .navbar {
        padding: 10px 8px;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        text-align: left;
    }

    .logo {
        width: auto;
        margin-bottom: 0;
        justify-content: flex-start !important;
        margin-left: 0 !important;
        padding-left: 0 !important;
        text-align: left !important;
    }

    .logo img,
    .logo-img {
        display: block;
        margin-left: 0 !important;
        margin-right: auto !important;
        width: 128px;
    }

    .nav-links {
        display: flex;
        justify-content: flex-start;
        gap: 4px;
        font-size: 12px;
        width: auto;
        flex-shrink: 0;
        margin-top: 18px;
    }

    .nav-link-item {
        padding: 5px 10px;
        font-size: 12px;
    }

    .nav-dropdown-menu {
        left: auto;
        right: 0;
        transform: translateX(0) translateY(4px);
    }

    .nav-dropdown:hover .nav-dropdown-menu {
        transform: translateX(0) translateY(0);
    }

    .hero-content {
        max-width: 230px;
    }

    .hero-section {
        min-height: 480px;
        padding: 20px 10px;
    }

    .hero-title {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .hero-description {
        font-size: 11px;
        margin-bottom: 14px;
        line-height: 1.5;
    }

    .hero-buttons {
        justify-content: center;
        margin-bottom: 18px;
        gap: 6px;
    }

    .hero-section .btn-large {
        padding: 8px 10px;
        font-size: 13px;
        white-space: nowrap;
    }

    .stats {
        justify-content: center;
        gap: 10px;
    }

    .stat-number {
        font-size: 18px;
    }

    .stat-label {
        font-size: 10px;
    }

    .stat-divider {
        height: 28px;
    }

    .model-circle {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        width: 420px;
        height: 420px;
        margin: 0 auto;
    }

    .model-circle::before {
        width: 330px;
        height: 330px;
    }

    .orbit-ring {
        width: 390px;
        height: 390px;
    }

    .model-icon {
        transform: rotate(var(--rotation)) translateY(-185px) translateX(-50%);
    }

    .icon-content {
        animation-duration: 30s;
    }

    .ai-img {
        width: 32px;
        height: 32px;
        padding: 3px;
    }

    .model-name {
        font-size: 9px;
    }

    .models-cloud {
        padding: 30px 10px 10px;
        gap: 10px;
    }

    .cloud-tag.tag-lg {
        font-size: 15px;
        padding: 10px 18px;
    }

    .cloud-tag.tag-md {
        font-size: 13px;
        padding: 9px 16px;
    }

    .cloud-tag.tag-sm {
        font-size: 12px;
        padding: 7px 12px;
    }

    .section-title {
        font-size: 20px;
    }

    .section-subtitle {
        font-size: 10px;
        max-width: 280px;
    }

    .section-header {
        margin-bottom: 24px;
    }

    .features-grid {
        gap: 10px;
    }

    .feature-card {
        padding: 16px 12px;
    }

    .gallery-masonry {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .gallery-item.wide {
        grid-column: span 1;
    }

    .gallery-item.tall img {
        min-height: 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-links {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .modal-container {
        width: 95%;
        max-height: 85vh;
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .modal-header h3 {
        font-size: 18px;
    }

    .prompt-item {
        padding: 16px;
    }

    .prompt-icon {
        width: 32px;
        height: 32px;
    }

    .prompt-content h4 {
        font-size: 14px;
    }

    .prompt-content p {
        font-size: 13px;
    }

    .notice-item {
        padding: 16px;
    }

    .notice-content h4 {
        font-size: 14px;
    }

    .notice-content p {
        font-size: 13px;
    }

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

    .policy-content h4 {
        font-size: 15px;
    }

    .policy-content p,
    .policy-content li {
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .carousel-track {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
        overflow: hidden;
        transition: none;
        transform: none !important;
    }

    .feature-item {
        flex: none;
        padding: 0;
        box-sizing: border-box;
        overflow: hidden;
    }

    .carousel-dots {
        display: none;
        justify-content: center;
        gap: 8px;
        margin-top: 20px;
    }

    .carousel-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #d1d5db;
        border: none;
        cursor: pointer;
        transition: background 0.3s;
        padding: 0;
    }

    .carousel-dot.active {
        background: #3b82f6;
    }
}

@media (max-width: 480px) {
    .model-circle {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        width: 340px;
        height: 340px;
        margin: 0 auto;
    }

    .model-circle::before {
        width: 270px;
        height: 270px;
    }

    .orbit-ring {
        width: 310px;
        height: 310px;
    }

    .model-icon {
        transform: rotate(var(--rotation)) translateY(-150px) translateX(-50%);
    }

    .ai-img {
        width: 28px;
        height: 28px;
    }

    .model-name {
        font-size: 8px;
    }

    .hero-section {
        min-height: 400px;
    }

    .hero-title {
        font-size: 20px;
    }

    .hero-content {
        max-width: 190px;
    }

    .hero-description {
        font-size: 10px;
        margin-bottom: 10px;
    }

    .hero-buttons {
        gap: 5px;
        margin-bottom: 14px;
    }

    .hero-section .btn-large {
        padding: 6px 8px;
        font-size: 11px;
        white-space: nowrap;
    }

    .stats {
        gap: 8px;
    }

    .stat-number {
        font-size: 16px;
    }

    .stat-label {
        font-size: 9px;
    }

    .stat-divider {
        height: 24px;
    }

    .features-section,
    .models-section,
    .gallery-section {
        padding: 0 16px;
    }

    .gallery-masonry {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .gallery-item img {
        min-height: 140px;
    }

    .gallery-item.tall img {
        min-height: 200px;
    }
}

/* 移动端减少动画，防止低端设备卡顿 */
@media (max-width: 768px) {
    .orbit-ring {
        animation-duration: 60s;
    }
    .icon-content {
        animation-duration: 60s;
    }
}

@media (max-width: 480px) {
    .orbit-ring {
        animation-duration: 90s;
    }
    .icon-content {
        animation-duration: 90s;
    }
}

/* 尊重用户系统偏好：减少动画 */
@media (prefers-reduced-motion: reduce) {
    .orbit-ring,
    .icon-content {
        animation: none !important;
    }
    .home-container::before,
    .home-container::after {
        animation: none !important;
    }
}

/* 隐私政策和服务条款 */
.policy-content {
    text-align: left;
}

.policy-intro {
    font-size: 14px;
    color: #374151;
    line-height: 1.8;
    margin: 0 0 20px 0;
    padding: 16px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
    border-radius: 12px;
    border-left: 4px solid #3b82f6;
}

.policy-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #111827;
    margin: 24px 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid #e5e7eb;
}

.policy-content h4:first-child {
    margin-top: 0;
}

.policy-content p {
    font-size: 14px;
    color: #4b5563;
    line-height: 1.7;
    margin: 0 0 12px 0;
}

.policy-content ul {
    margin: 8px 0 16px 0;
    padding-left: 20px;
}

.policy-content li {
    font-size: 14px;
    color: #4b5563;
    line-height: 1.8;
    margin-bottom: 8px;
}

.policy-content li strong {
    color: #111827;
}

.policy-update {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid #e5e7eb;
    font-size: 12px;
    color: #9ca3af;
    text-align: center;
}

/* Bug反馈表单 */
.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feedback-field label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 6px;
}

.feedback-field select,
.feedback-field textarea,
.feedback-field input[type="text"] {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    font-size: 14px;
    color: #111827;
    background: #f9fafb;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    font-family: inherit;
    box-sizing: border-box;
}

.feedback-field select:focus,
.feedback-field textarea:focus,
.feedback-field input[type="text"]:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
    background: #fff;
}

.feedback-field textarea {
    resize: vertical;
    min-height: 100px;
}

.feedback-submit {
    padding: 12px 24px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.2s;
}

.feedback-submit:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.feedback-submit:active {
    transform: translateY(0);
}

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

.feedback-success {
    text-align: center;
    padding: 24px;
}

.feedback-success .success-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.feedback-success h4 {
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    margin: 0 0 8px 0;
}

.feedback-success p {
    font-size: 14px;
    color: #6b7280;
    margin: 0;
}

/* ========== 滚动渐入动画 ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 功能卡片交错延迟 */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.08s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.16s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.24s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.32s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.40s; }

.reveal-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* 模型标签浮动 */
@keyframes tag-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.reveal-stagger.visible > *:nth-child(odd) {
    animation: tag-float 3s ease-in-out infinite;
}

.reveal-stagger.visible > *:nth-child(even) {
    animation: tag-float 3s ease-in-out 1.5s infinite;
}

/* 画廊hover增强 */
.gallery-item .gallery-overlay {
    transform: translate(-50%, -40%);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item:hover .gallery-overlay {
    transform: translate(-50%, -50%);
}

.gallery-item .gallery-model {
    transform: translateY(8px);
    opacity: 0;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1) 0.05s;
}

.gallery-item:hover .gallery-model {
    transform: translateY(0);
    opacity: 1;
}

/* === Nav badge (GitHub style) === */
.badge-wrap-nav {
    position: relative;
    display: inline-flex;
}
.nav-badge-count {
    position: absolute;
    top: -4px;
    right: -6px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: #ef4444;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 2px solid #0f0f11;
    box-sizing: border-box;
    box-shadow: 0 0 0 1px rgba(239,68,68,0.2);
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
}
.nav-badge-small {
    min-width: 14px;
    height: 14px;
    font-size: 9px;
    padding: 0 3px;
    border-radius: 7px;
    top: -2px;
    right: -4px;
}

/* Feedback reply card in modal */
.feedback-reply-card {
    padding: 12px 14px;
    background: linear-gradient(135deg, rgba(16,185,129,0.06), rgba(16,185,129,0.02));
    border: 1px solid rgba(16,185,129,0.15);
    border-radius: 10px;
    margin-top: 10px;
}
.feedback-reply-label {
    font-size: 12px;
    color: #10b981;
    font-weight: 600;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.feedback-reply-text {
    font-size: 13px;
    color: #e5e7eb;
    line-height: 1.6;
}
.feedback-reply-new {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 8px;
    height: 8px;
    background: #ef4444;
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(239,68,68,0.2);
}