* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

img {
    border: none;
    outline: none;
}

:root {
    --primary-color: #E67E22;
    --secondary-color: #F2E863;
    --accent-color: #2A9D8F;
    --dark-color: #1A1A1A;
    --light-color: #FAF3E8;
    --text-color: #333;
    --text-light: #666;
    --sienna: #E67E22;
    --ochre: #D4A03D;
    --stone-blue: #2A9D8F;
    --terracotta: #B84A3C;
    --primary-ochre: #8B4513;
}

@font-face {
    font-family: 'STXingkai';
    src: url('../fonts/xingkai.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    position: relative;
}

.mural-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background-color: #FAF3E8;
    background-image:
        url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3ClinearGradient id='caissonGrad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23C8553D;stop-opacity:0.06'/%3E%3Cstop offset='100%25' style='stop-color:%23588B8B;stop-opacity:0.04'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cpath d='M40 5 L55 15 L55 30 L70 30 L70 45 L55 45 L55 60 L40 70 L25 60 L25 45 L10 45 L10 30 L25 30 L25 15 Z' fill='none' stroke='url(%23caissonGrad)' stroke-width='1'/%3E%3Ccircle cx='40' cy='37' r='12' fill='none' stroke='%23C8553D' stroke-width='0.8' opacity='0.08'/%3E%3Ccircle cx='40' cy='37' r='6' fill='%23C8553D' opacity='0.05'/%3E%3Cpath d='M32 20 Q40 15 48 20 M32 55 Q40 60 48 55 M20 32 Q15 37 20 42 M55 32 Q60 37 55 42' stroke='%23D4A03D' stroke-width='0.5' fill='none' opacity='0.06'/%3E%3C/svg%3E"),
        linear-gradient(180deg, rgba(250, 243, 232, 0.92) 0%, rgba(245, 238, 225, 0.96) 100%);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #FDF5E6;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner-wrapper {
    text-align: center;
}

.loading-spinner-wrapper .spinner-circle {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(200, 85, 61, 0.2);
    border-top-color: #C8553D;
    border-radius: 50%;
    animation: spinner-rotate 1s linear infinite;
}

.loading-spinner-wrapper .spinner-text {
    margin-top: 15px;
    font-size: 14px;
    color: #666;
}

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

.loading-svg {
    width: 100px;
    height: 100px;
}

.loading-circle {
    animation: dashCircle 1.5s ease-in-out infinite;
    transform-origin: center;
}

.loading-circle-inner {
    animation: dashCircleInner 1.8s ease-in-out infinite;
    transform-origin: center;
}

.loading-circle-center {
    animation: dashCircleCenter 2s ease-in-out infinite;
    transform-origin: center;
}

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

@keyframes dashCircle {
    0% { stroke-dashoffset: 0; }
    50% { stroke-dashoffset: 50; }
    100% { stroke-dashoffset: 0; }
}

@keyframes dashCircleInner {
    0% { stroke-dashoffset: 0; }
    50% { stroke-dashoffset: 40; }
    100% { stroke-dashoffset: 0; }
}

@keyframes dashCircleCenter {
    0% { stroke-dashoffset: 0; }
    50% { stroke-dashoffset: 25; }
    100% { stroke-dashoffset: 0; }
}

body {
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 20px 20px 0;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled {
    background: #5D2906;
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 0;
    padding-right: 0;
    max-width: 100%;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: #8B4513;
    text-decoration: none;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, serif;
    display: flex;
    align-items: center;
}

.logo img {
    max-height: 35px;
    width: auto;
    border: none;
    border-radius: 0;
}

.logo span {
    color: #E67E22;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    margin-left: auto;
}

.nav-menu {
    display: flex;
    gap: 5px;
    list-style: none;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 17px;
    padding: 10px 18px;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.nav-menu a:hover {
    color: #8B4513;
    transform: translateY(-2px);
}

.nav-menu a.active {
    color: #8B4513;
    background: rgba(139, 69, 19, 0.15);
    font-weight: 600;
    transform: translateY(-2px);
}

.nav-menu a.active::after {
    display: none;
}

.hero {
    height: 100vh;
    background: url('../images/home-bg.jpg') no-repeat center center;
    background-size: cover;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg,
        rgba(139, 69, 19, 0.3) 0%,
        rgba(0, 0, 0, 0.4) 40%,
        rgba(0, 0, 0, 0.5) 100%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(transparent, rgba(139, 69, 19, 0.2));
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
    padding: 20px;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px;
    background: radial-gradient(ellipse at center, rgba(139, 69, 19, 0.2) 0%, transparent 70%);
    border-radius: 20px;
}

.hero-content h1 {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    text-shadow: 3px 3px 15px rgba(0, 0, 0, 0.8), 0 0 40px rgba(210, 105, 30, 0.3);
    color: #FDF5E6;
}

.hero-content p {
    font-size: 24px;
    margin-bottom: 10px;
    opacity: 1;
    font-family: 'Noto Sans SC', sans-serif;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.8);
}

.hero-content p:nth-child(2) {
    font-size: 20px;
    color: #FFD700;
    margin-bottom: 30px;
    font-family: 'Noto Sans SC', sans-serif;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.8);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
}

.btn {
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #E67E22 0%, #D35400 100%);
    color: #FAF3E8;
    border: none;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #F39C12 0%, #E67E22 100%);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(230, 126, 34, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #FAF3E8;
    border: 2px solid #E67E22;
    padding: 12px 30px;
    border-radius: 30px;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(210, 105, 30, 0.2);
    border-color: #F4A460;
    transform: translateY(-3px);
}

.btn-secondary:hover {
    background: #fff;
    color: var(--dark-color);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { top: 8px; opacity: 1; }
    100% { top: 30px; opacity: 0; }
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
}

.section-subtitle {
    font-size: 14px;
    color: #666;
    letter-spacing: 2px;
}

.tech-header {
    position: relative;
    padding: 20px 40px;
}

.tech-header h2 {
    position: relative;
    display: inline-block;
}

.tech-header h2::before,
.tech-header h2::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #D2691E, transparent);
}

.tech-header h2::before {
    right: 100%;
    margin-right: 20px;
}

.tech-header h2::after {
    left: 100%;
    margin-left: 20px;
}

.header-deco-line {
    width: 100px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #D2691E, transparent);
    margin: 15px auto;
}

.tech-header .section-subtitle {
    font-size: 12px;
    letter-spacing: 4px;
}

.about-section {
    background: linear-gradient(160deg, #D4C4B0 0%, #C9B896 30%, #B8956A 60%, #C8553D 100%);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23FFFFFF' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: relative;
    z-index: 1;
}

.about-top-row,
.about-bottom-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.about-top-row > div,
.about-bottom-row > div {
    max-width: 100%;
}

.about-text {
    background: linear-gradient(145deg, rgba(255, 252, 245, 0.98) 0%, rgba(248, 240, 228, 0.95) 100%);
    padding: 35px 28px;
    border-radius: 16px;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.about-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 Q35 15 30 25 Q25 15 30 5' fill='none' stroke='%23D2691E' stroke-width='0.5' opacity='0.08'/%3E%3Ccircle cx='30' cy='30' r='2' fill='%23D2691E' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.about-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #CD853F, #D2691E, #8B4513, #D2691E);
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.about-text > * {
    position: relative;
    z-index: 1;
}

.about-text:hover::after {
    opacity: 1;
    animation: gradientMove 2s ease infinite;
}

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

.about-text:hover {
    box-shadow: 0 8px 30px rgba(139, 69, 19, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.about-text h3 {
    font-size: 22px;
    font-weight: 600;
    color: #5D3A1A;
    margin-bottom: 16px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    text-align: left;
}

.about-text p {
    color: #333;
    margin-bottom: 18px;
    font-size: 16px;
    line-height: 30px;
    text-align: left;
}

.about-hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 22px;
}

.about-stat {
    padding: 16px 14px;
    border-radius: 8px;
    background: rgba(255, 248, 238, 0.92);
    border: 1px solid rgba(212, 160, 61, 0.16);
    box-shadow: 0 10px 22px rgba(139, 69, 19, 0.08);
    text-align: left;
}

.about-stat-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
    color: #5a321b;
    margin-bottom: 6px;
}

.about-stat-label {
    display: block;
    font-size: 12px;
    color: #7a5b42;
}

.origin-section {
    background: linear-gradient(145deg, rgba(255, 252, 245, 0.98) 0%, rgba(248, 240, 228, 0.95) 100%);
    padding: 35px 28px;
    border-radius: 16px;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.origin-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 Q35 15 30 25 Q25 15 30 5' fill='none' stroke='%23D2691E' stroke-width='0.5' opacity='0.08'/%3E%3Ccircle cx='30' cy='30' r='2' fill='%23D2691E' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.origin-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #CD853F, #D2691E, #8B4513, #D2691E);
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.origin-section > * {
    position: relative;
    z-index: 1;
}

.origin-section:hover::after {
    opacity: 1;
    animation: gradientMove 2s ease infinite;
}

.origin-section:hover {
    box-shadow: 0 8px 30px rgba(139, 69, 19, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.origin-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.origin-icon {
    font-size: 20px;
}

.origin-header h4 {
    font-size: 20px;
    font-weight: 600;
    color: #E67E22;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    margin: 0;
    text-align: left;
}

.origin-content p {
    color: #333;
    font-size: 16px;
    line-height: 28px;
    margin-bottom: 16px;
    text-align: left;
}

.origin-content strong {
    color: #E67E22;
}

.origin-highlight {
    background: rgba(230, 126, 34, 0.06);
    padding: 20px 24px;
    border-radius: 8px;
    border-left: 4px solid #D4A03D;
    margin-top: 16px;
}

.origin-highlight p {
    color: #333;
    font-size: 16px;
    line-height: 28px;
    margin-bottom: 8px;
}

.origin-highlight p:last-child {
    margin-bottom: 0;
}

.origin-highlight strong {
    color: #E67E22;
    font-weight: 600;
}

.origin-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.origin-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(42, 157, 143, 0.08);
    color: #25695f;
    border: 1px solid rgba(42, 157, 143, 0.18);
    font-size: 12px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
    height: 100%;
}

.about-features .feature-item {
    flex: 1;
    text-align: left;
    padding: 24px 20px;
    background: linear-gradient(145deg, rgba(255, 252, 245, 0.98) 0%, rgba(248, 240, 228, 0.95) 100%);
    border-radius: 16px;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
}

.about-features .feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 Q35 15 30 25 Q25 15 30 5' fill='none' stroke='%23D2691E' stroke-width='0.5' opacity='0.08'/%3E%3Ccircle cx='30' cy='30' r='2' fill='%23D2691E' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.about-features .feature-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #CD853F, #D2691E, #8B4513, #D2691E);
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.about-features .feature-item > * {
    position: relative;
    z-index: 1;
}

.about-features .feature-item:hover::after {
    opacity: 1;
    animation: gradientMove 2s ease infinite;
}

.about-features .feature-item:hover {
    box-shadow: 0 8px 30px rgba(139, 69, 19, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.about-features .feature-item:first-child {
    border-top: none;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(230, 126, 34, 0.12);
}

.feature-item.ai-feature {
    border-left-color: #E67E22;
}

.feature-item.vr-feature {
    border-left-color: #588B8B;
}

.feature-item.community-feature {
    border-left-color: #D4A03D;
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 4px;
    text-align: left;
}

.feature-text p {
    font-size: 13px;
    font-weight: 400;
    color: #666;
    text-align: left;
    margin: 0;
}

.feature-icon img {
    border-radius: 8px;
    background: linear-gradient(135deg, #FAF3E8, #E8D4BE);
    padding: 4px;
}

.feature-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    text-align: left;
}

.feature-item p {
    font-size: 14px;
    font-weight: 400;
    color: #666;
    text-align: left;
    margin: 0;
}

.carousel-section {
    margin-bottom: 32px;
}

.carousel-container {
    background: linear-gradient(145deg, rgba(255, 252, 245, 0.98) 0%, rgba(248, 240, 228, 0.95) 100%);
    border-radius: 16px;
    padding: 35px 28px;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.carousel-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 Q35 15 30 25 Q25 15 30 5' fill='none' stroke='%23D2691E' stroke-width='0.5' opacity='0.08'/%3E%3Ccircle cx='30' cy='30' r='2' fill='%23D2691E' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.carousel-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #CD853F, #D2691E, #8B4513, #D2691E);
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.carousel-container:hover::after {
    opacity: 1;
    animation: gradientMove 2s ease infinite;
}

.carousel-container:hover {
    box-shadow: 0 8px 30px rgba(139, 69, 19, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    display: none;
}

.carousel-slide.active {
    display: block;
}

.slide-content {
    text-align: center;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.artwork-frame {
    width: 220px;
    height: 220px;
    margin: 0 auto 20px;
    background: linear-gradient(145deg, rgba(255, 252, 245, 0.98) 0%, rgba(248, 240, 228, 0.95) 100%);
    border-radius: 16px;
    padding: 12px;
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
}

.artwork-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #CD853F, #D2691E, #8B4513, #D2691E);
    background-size: 300% 300%;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.artwork-frame:hover::before {
    opacity: 1;
    animation: gradientMove 2s ease infinite;
}

.artwork-frame:hover {
    box-shadow: 0 8px 30px rgba(139, 69, 19, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.artwork-frame > * {
    position: relative;
    z-index: 1;
}

.artwork-frame::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 2px solid rgba(139, 69, 19, 0.15);
    border-radius: 12px;
}

.frame-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #FAF3E8 0%, #E8D4BE 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 0;
}

.artwork-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.artwork-desc {
    font-size: 14px;
    color: #666;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 25px;
}

.carousel-btn {
    background: linear-gradient(145deg, #E67E22 0%, #D35400 100%);
    color: #fff;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(230, 126, 34, 0.3);
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(230, 126, 34, 0.4);
}

.carousel-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(230, 126, 34, 0.25);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: #E67E22;
    transform: scale(1.2);
}

.process-flow-section {
    margin-top: 32px;
    padding: 32px;
    background: linear-gradient(160deg, rgba(255, 252, 245, 0.95) 0%, rgba(250, 247, 240, 0.95) 100%);
    background-image:
        url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M40 8 L52 20 L52 48 L40 60 L28 48 L28 20 Z' fill='none' stroke='%23B8956A' stroke-width='0.5' opacity='0.05'/%3E%3Ccircle cx='40' cy='34' r='6' fill='none' stroke='%23C8553D' stroke-width='0.4' opacity='0.03'/%3E%3Ccircle cx='40' cy='34' r='2' fill='%23D4A03D' opacity='0.02'/%3E%3C/svg%3E");
    border-radius: 10px;
    border: 1px solid rgba(184, 148, 106, 0.25);
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 0 20px rgba(255, 255, 255, 0.5);
}

.process-title {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 32px;
    position: relative;
}

.process-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #E67E22, #D4A03D);
    margin: 16px auto 0;
    border-radius: 2px;
}

.timeline-axis {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 600px;
    margin: 0 auto;
    padding-left: 80px;
}

.axis-line {
    position: absolute;
    left: 24px;
    top: 24px;
    bottom: 24px;
    width: 3px;
    background: linear-gradient(180deg, #F39C12, #E67E22, #D35400, #D4A03D);
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(230, 126, 34, 0.3);
}

.axis-step {
    display: flex;
    align-items: center;
    gap: 24px;
    position: relative;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s ease;
}

.axis-step.axis-visible {
    opacity: 1;
    transform: translateX(0);
}

.step-number-circle {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: linear-gradient(145deg, #2A9D8F, #238B7E);
    color: #fff;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
}

.step-content-card {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px 32px;
    background: linear-gradient(160deg, rgba(255, 252, 245, 0.98) 0%, rgba(250, 247, 240, 0.98) 100%);
    background-image:
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L40 15 L40 35 L30 45 L20 35 L20 15 Z' fill='none' stroke='%23B8956A' stroke-width='0.5' opacity='0.05'/%3E%3Ccircle cx='30' cy='25' r='4' fill='none' stroke='%23C8553D' stroke-width='0.4' opacity='0.03'/%3E%3C/svg%3E");
    border-radius: 10px;
    border: 1px solid rgba(184, 148, 106, 0.2);
    box-shadow: 0 4px 12px rgba(139, 69, 19, 0.06), inset 0 0 15px rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.step-content-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(139, 69, 19, 0.1);
    border-color: rgba(200, 85, 61, 0.35);
}

.step-icon-axis {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(230, 126, 34, 0.08);
    border-radius: 8px;
}

.step-text {
    flex: 1;
}

.step-text h4 {
    font-size: 20px;
    font-weight: 600;
    color: #1A1A1A;
    margin-bottom: 8px;
    line-height: 28px;
}

.step-text p {
    font-size: 14px;
    font-weight: 400;
    color: #333;
    margin-bottom: 12px;
    line-height: 24px;
}

.step-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(230, 126, 34, 0.1);
    color: #E67E22;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
    line-height: 16px;
}

.process-timeline {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.vertical-timeline {
    flex-direction: column;
    gap: 0;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: linear-gradient(145deg, #FFFFFF, #FAF3E8);
    border-radius: 12px;
    border: 2px solid rgba(200, 85, 61, 0.2);
    min-width: 120px;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
}

.process-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.process-step:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: #C8553D;
    box-shadow: 0 15px 40px rgba(200, 85, 61, 0.25);
}

.enhanced-step {
    width: 100%;
    max-width: 600px;
    padding: 0;
    background: transparent;
    border: none;
    flex-direction: row;
    opacity: 1;
    transform: translateY(0);
}

.enhanced-step .step-card {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid rgba(200, 85, 61, 0.12);
    border-left: 4px solid #C8553D;
    width: 100%;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.enhanced-step:hover .step-card {
    transform: translateX(8px);
    box-shadow: 0 8px 30px rgba(200, 85, 61, 0.12);
}

.step-number {
    font-size: 20px;
    font-weight: 600;
    color: #C8553D;
    min-width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 85, 61, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.step-icon-large {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 85, 61, 0.08);
    border-radius: 10px;
}

.step-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 0;
}

.connector-line {
    width: 3px;
    height: 24px;
    background: linear-gradient(180deg, #C8553D, #D4A03D);
    border-radius: 2px;
}

.connector-arrow {
    color: #C8553D;
    font-size: 16px;
    animation: arrowBounce 1s ease-in-out infinite;
}

@keyframes arrowBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(5px); }
}

@keyframes stepVisible {
    0% { opacity: 0; transform: translateX(-20px); }
    100% { opacity: 1; transform: translateX(0); }
}

@keyframes animateIn {
    0% { opacity: 0; transform: scale(0.9); }
    100% { opacity: 1; transform: scale(1); }
}

.enhanced-step {
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.5s ease;
}

.enhanced-step.step-visible {
    opacity: 1;
    transform: translateX(0);
}

.enhanced-step .step-card {
    opacity: 0;
    transform: scale(0.9);
}

.enhanced-step .step-card.animate-in {
    animation: animateIn 0.5s ease forwards;
}

.step-connector {
    opacity: 0;
}

.enhanced-step.step-visible .step-connector {
    animation: stepVisible 0.4s ease forwards;
    animation-delay: 0.3s;
}

.enhanced-step.step-visible:nth-child(1) .step-connector,
.enhanced-step.step-visible:nth-child(3) .step-connector,
.enhanced-step.step-visible:nth-child(5) .step-connector,
.enhanced-step.step-visible:nth-child(7) .step-connector,
.enhanced-step.step-visible:nth-child(9) .step-connector {
    opacity: 1;
}

.step-tag {
    display: inline-block;
    margin-top: 6px;
    padding: 3px 10px;
    background: rgba(230, 126, 34, 0.08);
    color: #E67E22;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 6px;
}

.step-content p {
    font-size: 14px;
    font-weight: 400;
    color: #666;
    line-height: 22px;
}

.step-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(145deg, #C8553D 0%, #B84A3C 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    box-shadow: 0 5px 15px rgba(200, 85, 61, 0.4);
}

.process-arrow {
    font-size: 28px;
    color: #C8553D;
    animation: arrowPulse 1.5s infinite;
}

@keyframes arrowPulse {
    0%, 100% { opacity: 0.5; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(5px); }
}

.tech-section {
    background: linear-gradient(135deg, #E8D4B8 0%, #D4C4A8 30%, #C8B498 50%, #B8A488 75%, #C8553D 100%);
    position: relative;
    overflow: hidden;
}

.tech-section .section-header h2 {
    color: #333;
}

.tech-section .section-subtitle {
    color: #666;
}

.tech-bg-effects {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.circuit-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(139, 69, 19, 0.4), transparent);
    animation: circuit-flow 8s linear infinite;
}

.circuit-line:nth-child(1) {
    top: 20%;
    width: 60%;
    left: -10%;
    animation-delay: 0s;
}

.circuit-line:nth-child(2) {
    top: 50%;
    width: 80%;
    right: -10%;
    animation-delay: 2s;
}

.circuit-line:nth-child(3) {
    top: 80%;
    width: 50%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes circuit-flow {
    0% { opacity: 0; transform: translateX(-100%); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: translateX(100%); }
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: orb-float 6s ease-in-out infinite;
}

.orb1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #D2B48C 0%, transparent 70%);
    top: -100px;
    left: 10%;
    animation-delay: 0s;
}

.orb2 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, #C4A77D 0%, transparent 70%);
    bottom: -50px;
    right: 15%;
    animation-delay: 2s;
}

.orb3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, #E8D4B8 0%, transparent 70%);
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}

.tech-card {
    background: linear-gradient(145deg, rgba(255, 252, 245, 0.98) 0%, rgba(248, 240, 228, 0.95) 100%);
    padding: 35px 28px;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(139, 69, 19, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 Q35 15 30 25 Q25 15 30 5' fill='none' stroke='%23D2691E' stroke-width='0.5' opacity='0.08'/%3E%3Ccircle cx='30' cy='30' r='2' fill='%23D2691E' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.tech-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #CD853F, #D2691E);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.tech-card > * {
    position: relative;
    z-index: 1;
}

.tech-card:hover::before {
    opacity: 0.6;
}

.tech-card:hover {
    transform: translateY(-12px) scale(1.03);
    border-color: rgba(160, 82, 45, 0.3);
    box-shadow: 0 25px 60px rgba(139, 69, 19, 0.25), 0 0 40px rgba(210, 105, 30, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.tech-card:hover::after {
    opacity: 0.8;
}

.tech-card.ai-card {
    border-left: 4px solid #E67E22;
}

.tech-card.ai-card::before {
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 Q35 15 30 25 Q25 15 30 5' fill='none' stroke='%23E67E22' stroke-width='0.5' opacity='0.1'/%3E%3Ccircle cx='30' cy='30' r='3' fill='%23E67E22' opacity='0.08'/%3E%3C/svg%3E");
}

.tech-card.ai-card:hover {
    border-color: rgba(230, 126, 34, 0.4);
    box-shadow: 0 25px 60px rgba(230, 126, 34, 0.2), 0 0 40px rgba(230, 126, 34, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.tech-card.ai-card:hover::after {
    background: linear-gradient(135deg, #E67E22, #D4A03D, #E67E22);
}

.tech-card.vr-card {
    border-left: 4px solid #588B8B;
}

.tech-card.vr-card::before {
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 10 L40 20 L40 35 L30 45 L20 35 L20 20 Z' fill='none' stroke='%23588B8B' stroke-width='0.5' opacity='0.1'/%3E%3Ccircle cx='30' cy='28' r='4' fill='%23588B8B' opacity='0.08'/%3E%3C/svg%3E");
}

.tech-card.vr-card:hover {
    border-color: rgba(88, 139, 139, 0.4);
    box-shadow: 0 25px 60px rgba(88, 139, 139, 0.2), 0 0 40px rgba(88, 139, 139, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.tech-card.vr-card:hover::after {
    background: linear-gradient(135deg, #588B8B, #C8553D, #588B8B);
}

.tech-card.community-card {
    border-left: 4px solid #D4A03D;
}

.tech-card .card-tag {
    top: 16px;
    right: 16px;
}

.tech-card.community-card::before {
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='25' cy='25' r='8' fill='none' stroke='%23D4A03D' stroke-width='0.5' opacity='0.1'/%3E%3Ccircle cx='35' cy='25' r='8' fill='none' stroke='%23D4A03D' stroke-width='0.5' opacity='0.1'/%3E%3Cpath d='M25 35 L30 42 L35 35' stroke='%23D4A03D' stroke-width='0.5' fill='none' opacity='0.1'/%3E%3C/svg%3E");
}

.tech-card.community-card:hover {
    border-color: rgba(212, 160, 61, 0.4);
    box-shadow: 0 25px 60px rgba(212, 160, 61, 0.2), 0 0 40px rgba(212, 160, 61, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.tech-card.community-card:hover::after {
    background: linear-gradient(135deg, #D4A03D, #C8553D, #D4A03D);
}

.tech-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(210, 105, 30, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.tech-card:hover .tech-glow {
    opacity: 1;
}

.tech-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-svg {
    width: 64px;
    height: 64px;
}

.icon-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(160, 82, 45, 0.3);
    border-radius: 50%;
    animation: ring-rotate 10s linear infinite;
}

.icon-ring::before {
    content: '';
    position: absolute;
    top: -5px;
    left: 50%;
    width: 10px;
    height: 10px;
    background: #A0522D;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(160, 82, 45, 0.6);
}

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

.icon-core {
    font-size: 50px;
    z-index: 1;
    filter: drop-shadow(0 0 8px rgba(160, 82, 45, 0.4));
}

.tech-card h3 {
    font-size: 24px;
    color: #5D3A1A;
    margin-bottom: 12px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    text-align: center;
}

.tech-desc {
    color: #6B4423;
    font-size: 15px;
    margin-bottom: 18px;
    line-height: 1.7;
    text-align: center;
    min-height: 52px;
}

.tech-features {
    list-style: none;
    margin-bottom: 18px;
    padding: 0 10px;
}

.tech-features li {
    padding: 7px 0;
    color: #5D3A1A;
    font-size: 14px;
    position: relative;
    padding-left: 22px;
    text-align: left;
    border-bottom: 1px dashed rgba(160, 82, 45, 0.1);
}

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

.tech-card::after {
    opacity: 0.82;
}

.feature-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    border-radius: 50% 0 50% 50%;
    margin-right: 10px;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    box-shadow: 0 0 6px rgba(210, 105, 30, 0.5);
}

@keyframes dot-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.card-tag {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 2;
}

.card-tag.hot {
    background: linear-gradient(135deg, #FF6347, #FF4500);
    color: #fff;
}

.card-tag.recommended {
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
}

.card-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.card-actions .btn-card {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-card {
    flex: 1;
    padding: 10px 15px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-arrow {
    transition: transform 0.3s ease;
    display: inline-block;
}

.btn-card:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-primary-card {
    background: linear-gradient(135deg, #E67E22, #D35400);
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px rgba(230, 126, 34, 0.3);
}

.btn-primary-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(230, 126, 34, 0.4);
    background: linear-gradient(135deg, #F39C12, #E67E22);
}

.btn-secondary-card {
    background: rgba(255, 255, 255, 0.9);
    color: #E67E22;
    border: 2px solid #E67E22;
}

.btn-secondary-card:hover {
    transform: translateY(-3px);
    background: linear-gradient(135deg, #C8553D, #B84A3C);
    color: #fff;
    box-shadow: 0 8px 25px rgba(200, 85, 61, 0.4);
}

.tech-link {
    color: #A0522D;
    font-weight: 600;
    transition: color 0.3s;
}

.tech-card:hover .tech-link {
    color: #8B4513;
}

.team-section {
    background: var(--dark-color);
    color: #fff;
}

.team-section .section-header h2 {
    color: #fff;
}

.team-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.team-content > p {
    font-size: 18px;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 50px;
}

.team-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    transition: background 0.3s;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--accent-color);
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.stat-label {
    display: block;
    font-size: 14px;
    opacity: 0.8;
    margin-top: 10px;
}

.contact-section {
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
    justify-content: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 18px;
}

.contact-icon {
    font-size: 30px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px 20px;
    border: 2px solid #eee;
    border-radius: 10px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

.footer {
    background: #5D2906;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo h3 {
    font-size: 32px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.footer-logo h3 span {
    color: var(--accent-color);
}

.footer-logo p {
    opacity: 0.7;
    margin-top: 10px;
    font-size: 18px;
}

.footer-links h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

.page-header {
    height: 50vh;
    background: transparent;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-header.remote-header {
    background: radial-gradient(ellipse at center, #1a2a4a 0%, #0d1a30 40%, #081020 70%, #050a15 100%);
    position: relative;
}

.page-header.remote-header #particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.page-header.remote-header .header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(13, 26, 48, 0.3) 0%, rgba(8, 16, 32, 0.6) 100%);
    z-index: 2;
}

.page-header.remote-header .header-content {
    position: relative;
    z-index: 3;
}

.page-header.vr-header {
    background: linear-gradient(135deg, #2d4a3a 0%, #4a6a5a 30%, #8B7355 60%, #D4A574 100%);
}

.page-header.community-header {
    background: linear-gradient(135deg, #3d2817 0%, #6a4a3a 50%, #9a6a5a 100%);
}

.page-header.remote-header {
    background: radial-gradient(ellipse at center, #1a2a4a 0%, #0d1a30 40%, #081020 70%, #050a15 100%);
}

.page-header {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.header-content.vr-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    text-align: center;
    padding: 60px 40px;
}

.title-wrapper {
    text-align: center;
}

.title-wrapper h1 {
    font-size: 56px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    color: #FDF5E6;
    text-shadow: 0 0 30px rgba(210, 105, 30, 0.6), 0 0 60px rgba(210, 105, 30, 0.3), 3px 3px 15px rgba(0, 0, 0, 0.8);
    margin-bottom: 15px;
    letter-spacing: 4px;
}

.title-wrapper .subtitle {
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 18px;
    font-weight: 300;
    color: #E8D4B8;
    letter-spacing: 6px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.deco-left, .deco-right {
    opacity: 0.8;
    animation: deco-float 4s ease-in-out infinite;
}

.deco-right {
    animation-delay: 2s;
}

@keyframes deco-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.header-cta {
    display: inline-block;
    background: linear-gradient(135deg, #D2691E 0%, #8B4513 100%);
    color: #FDF5E6;
    padding: 16px 48px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    margin-top: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(210, 105, 30, 0.4);
}

.header-cta:hover {
    background: linear-gradient(135deg, #F4A460 0%, #D2691E 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(244, 164, 96, 0.5);
}

.header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.4) 100%);
}

.header-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
}

.header-content h1 {
    font-size: 48px;
    font-weight: 700;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    margin-bottom: 15px;
}

.header-content p {
    font-size: 20px;
    opacity: 0.9;
}

.module-section {
    background: #fff;
}

.module-intro {
    max-width: 900px;
    margin: 0 auto 60px;
    text-align: center;
}

.ai-highlight-box {
    max-width: 900px;
    margin: 0 auto 60px;
    padding: 40px;
    background: linear-gradient(145deg, #FFFFFF 0%, #F5E6D3 100%);
    border-radius: 20px;
    border: 3px solid rgba(139, 69, 19, 0.3);
    box-shadow: 0 10px 40px rgba(139, 69, 19, 0.15);
}

.ai-highlight-box h3 {
    font-size: 26px;
    color: #5D3A1A;
    font-family: serif;
    margin-bottom: 20px;
    text-align: center;
}

.ai-highlight-box p {
    font-size: 17px;
    color: #6B4423;
    line-height: 1.9;
    text-align: justify;
    margin-bottom: 15px;
}

.module-intro h2 {
    font-size: 32px;
    color: var(--dark-color);
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    margin-bottom: 20px;
}

.module-intro p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.feature-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.detail-card {
    padding: 35px 25px;
    background: var(--light-color);
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s;
}

.detail-card:hover {
    transform: translateY(-5px);
}

.detail-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.detail-card h3 {
    font-size: 20px;
    color: var(--dark-color);
    margin-bottom: 15px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.detail-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

.process-flow,
.vr-preview,
.community-stats {
    margin-bottom: 60px;
}

.process-flow h2,
.vr-preview h2,
.community-stats h2 {
    text-align: center;
    font-size: 32px;
    color: var(--dark-color);
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    margin-bottom: 40px;
}

.flow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.flow-step {
    text-align: center;
    padding: 30px;
    background: var(--light-color);
    border-radius: 15px;
    width: 200px;
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    line-height: 50px;
    background: var(--accent-color);
    color: var(--dark-color);
    border-radius: 50%;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.flow-step h4 {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.flow-step p {
    font-size: 14px;
    color: var(--text-light);
}

.flow-arrow {
    font-size: 30px;
    color: var(--secondary-color);
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

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

.preview-placeholder {
    height: 200px;
    background: linear-gradient(135deg, #d4a574 0%, #c49462 100%);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.preview-placeholder span {
    font-size: 60px;
    margin-bottom: 15px;
}

.preview-placeholder p {
    color: var(--dark-color);
    font-weight: 600;
}

.preview-item h4 {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.preview-item p {
    font-size: 14px;
    color: var(--text-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--light-color);
    border-radius: 15px;
}

.stat-card .stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-color);
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.stat-card .stat-label {
    display: block;
    font-size: 16px;
    color: var(--text-light);
    margin-top: 10px;
}

.cta-box {
    text-align: center;
    padding: 50px;
    background: linear-gradient(135deg, #3d2817 0%, #5c3a2a 100%);
    border-radius: 20px;
    color: #fff;
}

.cta-box h3 {
    font-size: 28px;
    margin-bottom: 10px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.cta-box p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 25px;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

.tech-card,
.feature-item,
.detail-card {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

.tech-card.visible,
.feature-item.visible,
.detail-card.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .about-features {
        grid-template-columns: repeat(3, 1fr);
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .about-top-row,
    .about-bottom-row {
        grid-template-columns: 1fr;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .tech-card {
        padding: 30px 24px;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .tech-card:active {
        transform: translateY(-4px) scale(0.99);
    }

    .card-actions {
        flex-direction: column;
        gap: 12px;
    }

    .btn-card {
        padding: 16px 20px;
        font-size: 15px;
        min-height: 52px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .card-tag {
        padding: 6px 14px;
        font-size: 13px;
    }

    .feature-detail-grid {
        grid-template-columns: 1fr;
    }

    .flow-steps {
        flex-direction: column;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .team-stats {
        grid-template-columns: 1fr 1fr;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .guide-tooltip {
        max-width: 90% !important;
        padding: 18px 24px !important;
    }

    .guide-tooltip h4 {
        font-size: 18px !important;
    }

    .guide-tooltip p {
        font-size: 13px !important;
    }

    .side-deco {
        display: none;
    }

    .hero {
        min-height: 100vh;
        padding-top: 80px;
    }

    .tech-section {
        padding: 60px 0;
    }

    .tech-card .tech-icon {
        width: 70px;
        height: 70px;
    }

    .icon-svg {
        width: 56px;
        height: 56px;
    }

    .tech-card h3 {
        font-size: 22px;
    }

    .tech-desc {
        font-size: 14px;
        min-height: auto;
    }

    .tech-features li {
        font-size: 13px;
        padding: 6px 0 6px 20px;
    }
}

.clay-experience-section {
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.1) 0%, rgba(210, 105, 30, 0.1) 100%);
    border-radius: 20px;
    border: 2px solid rgba(210, 105, 30, 0.3);
}

.clay-experience-section .section-title {
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    font-size: 36px;
    color: #8B4513;
    text-align: center;
    margin-bottom: 10px;
}

.clay-experience-section .section-desc {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 30px;
}

.clay-steps-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
    gap: 10px;
}

.step-dot {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #666;
    transition: all 0.3s ease;
}

.step-dot span {
    display: none;
}

.step-dot.active {
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    transform: scale(1.1);
}

.step-dot.completed {
    background: #2d5a27;
    color: #fff;
}

.step-dot.active span {
    display: block;
}

.step-line {
    width: 60px;
    height: 3px;
    background: #ddd;
}

.clay-workspace {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.clay-canvas-container {
    flex: 1;
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

#clayCanvas {
    display: block;
    background: #E8D4B8;
    cursor: default;
}

.clay-hint {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    white-space: nowrap;
}

.clay-tools {
    width: 280px;
}

.tool-panel {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.tool-panel.hidden {
    display: none;
}

.tool-panel h4 {
    font-size: 22px;
    color: #8B4513;
    margin-bottom: 10px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.tool-desc {
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}

.soil-selector {
    margin-bottom: 20px;
}

.soil-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.soil-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.soil-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.soil-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.soil-btn.active {
    border-color: #E67E22;
    transform: scale(1.15);
    box-shadow: 0 0 10px rgba(230, 126, 34, 0.5);
}

.soil-preview {
    margin-top: 10px;
    font-size: 13px;
    color: #888;
}

.particle-color-selector {
    margin-bottom: 20px;
}

.particle-color-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.particle-color-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.particle-color-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.particle-color-btn:hover {
    transform: scale(1.15);
    box-shadow: 0 3px 6px rgba(0,0,0,0.3);
}

.particle-color-btn.active {
    border-color: #E67E22;
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(230, 126, 34, 0.5);
}

.particle-color-preview {
    margin-top: 8px;
    font-size: 13px;
    color: #888;
}

.mode-selector {
    margin-bottom: 20px;
}

.mode-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.mode-buttons {
    display: flex;
    gap: 8px;
}

.mode-btn {
    flex: 1;
    padding: 8px 12px;
    background: #e0e0e0;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    color: #666;
    transition: all 0.2s ease;
}

.mode-btn:hover {
    background: #d0d0d0;
}

.mode-btn.active {
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border-color: #8B4513;
}

.brush-styles {
    margin-bottom: 15px;
}

.brush-label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.brush-options {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.brush-btn {
    width: 50px;
    height: 50px;
    background: #fff;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.brush-btn::before {
    content: '';
    position: absolute;
    width: 70%;
    height: 70%;
}

.brush-btn.round::before {
    border-radius: 50%;
    background: #5D4037;
}

.brush-btn.square::before {
    background: #5D4037;
}

.brush-btn.calligraphy::before {
    background: linear-gradient(90deg, transparent 0%, #5D4037 30%, #5D4037 70%, transparent 100%);
    transform: rotate(-15deg);
    border-radius: 2px;
}

.brush-btn.pencil::before {
    background: repeating-linear-gradient(
        90deg,
        #5D4037 0px,
        #5D4037 1px,
        transparent 1px,
        transparent 2px
    );
}

.brush-btn:hover {
    border-color: #D2691E;
    transform: scale(1.05);
}

.brush-btn.active {
    border-color: #8B4513;
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.3);
}

.tool-mode-toggle {
    display: flex;
    gap: 5px;
    margin-bottom: 15px;
}

.tool-toggle-btn {
    flex: 1;
    padding: 8px 12px;
    background: #e0e0e0;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    color: #666;
    transition: all 0.2s ease;
}

.tool-toggle-btn:hover {
    background: #d0d0d0;
}

.tool-toggle-btn.active {
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border-color: #8B4513;
}

.canvas-zoom-container {
    overflow: hidden;
    border-radius: 12px;
}

.canvas-zoom-controls {
    position: absolute;
    bottom: 15px;
    right: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.6);
    padding: 8px 15px;
    border-radius: 20px;
}

.zoom-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 50%;
    background: rgba(210, 105, 30, 0.8);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zoom-btn:hover {
    background: #D2691E;
}

.canvas-zoom-controls .zoom-level {
    color: #fff;
    font-size: 14px;
    min-width: 50px;
    text-align: center;
}

.slider-group {
    margin-bottom: 15px;
}

.slider-group label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.slider-group label span {
    color: #8B4513;
    font-weight: bold;
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #e0e0e0;
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    cursor: pointer;
    border: none;
}

.custom-color {
    margin-bottom: 15px;
}

.custom-color label {
    display: block;
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.color-picker {
    width: 100%;
    height: 40px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.clay-progress {
    height: 20px;
    background: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.clay-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #D2691E, #8B4513);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 16px;
    font-weight: bold;
    color: #8B4513;
}

.free-create-hint {
    text-align: center;
    padding: 12px 20px;
    background: linear-gradient(145deg, #f0f8ff 0%, #e6f2ff 100%);
    border: 1px dashed #4CAF50;
    border-radius: 10px;
    color: #2E8B57;
    font-weight: 500;
    font-size: 14px;
    margin-top: 10px;
}

.zoom-controls {
    margin-bottom: 15px;
}

.zoom-level {
    font-size: 16px;
    color: #333;
}

.btn-tool {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-tool:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 69, 19, 0.4);
}

.color-palette {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.color-swatch {
    width: 45px;
    height: 45px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 3px solid transparent;
}

.color-swatch:hover {
    transform: scale(1.1);
}

.color-swatch.active {
    border-color: #333;
    transform: scale(1.15);
}

.selected-color {
    font-size: 14px;
    color: #666;
    text-align: center;
}

.clay-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.clay-actions .btn {
    min-width: 140px;
    padding: 12px 30px;
    font-size: 16px;
}

.work-result {
    margin-top: 40px;
}

.result-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    text-align: center;
}

.result-card h4 {
    font-size: 28px;
    color: #8B4513;
    margin-bottom: 20px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

#resultCanvas {
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.work-info {
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.work-date {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
}

.knowledge-card {
    background: linear-gradient(135deg, #f5e6d3 0%, #e8d4b8 100%);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid #D2691E;
}

.knowledge-card h5 {
    font-size: 18px;
    color: #8B4513;
    margin-bottom: 10px;
}

.knowledge-card p {
    color: #5D4037;
    line-height: 1.8;
    font-size: 15px;
}

@media (max-width: 900px) {
    .clay-workspace {
        flex-direction: column;
    }

    .clay-tools {
        width: 100%;
    }

    .clay-canvas-container {
        width: 100%;
    }

    #clayCanvas {
        width: 100%;
        max-width: 800px;
        height: auto;
    }
}

/* AI creative assistant redesign */
.ai-assistant-section {
    overflow: hidden !important;
    margin-top: 64px !important;
}

.ai-assistant-hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(90, 50, 27, 0.12);
}

.ai-assistant-copy {
    max-width: 720px;
}

.ai-section-kicker {
    display: inline-flex;
    align-items: center;
    margin-bottom: 12px;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(42, 157, 143, 0.22);
    background: rgba(42, 157, 143, 0.1);
    color: #1f7b71;
    font-size: 12px;
    font-weight: 700;
}

.ai-assistant-section .section-title {
    margin-bottom: 12px !important;
    font-size: clamp(28px, 3.2vw, 40px) !important;
    line-height: 1.15;
    text-align: left !important;
}

.ai-assistant-section .section-desc {
    max-width: 620px;
    margin-bottom: 0 !important;
    color: rgba(47, 29, 18, 0.72) !important;
    text-align: left !important;
}

.ai-assistant-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(84px, 1fr));
    gap: 12px;
    flex-shrink: 0;
}

.assistant-stat {
    min-width: 86px;
    padding: 14px 16px;
    border-radius: 8px;
    border: 1px solid rgba(90, 50, 27, 0.12);
    background: rgba(255, 255, 255, 0.6);
    text-align: center;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.68);
}

.assistant-stat .stat-value {
    display: block;
    color: var(--lux-ink);
    font-size: 22px;
    font-weight: 800;
    line-height: 1.1;
}

.assistant-stat .stat-label {
    display: block;
    margin-top: 5px;
    color: rgba(47, 29, 18, 0.68);
    font-size: 12px;
}

.ai-assistant-section .ai-image-generator {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr) !important;
    align-items: stretch;
    gap: 22px !important;
    margin-bottom: 22px;
}

.ai-assistant-section .ai-panel {
    border-radius: 8px !important;
    border: 1px solid rgba(90, 50, 27, 0.14) !important;
    background:
        radial-gradient(circle at 100% 0%, rgba(42,157,143,0.08), transparent 34%),
        linear-gradient(180deg, rgba(255,255,255,0.88), rgba(255,250,240,0.96)) !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.72), 0 18px 42px rgba(58, 31, 14, 0.08) !important;
}

.ai-assistant-section .ai-panel-editor,
.ai-assistant-section .ai-panel-preview,
.ai-assistant-section .ai-panel-tips,
.ai-assistant-section .ai-panel-knowledge,
.ai-assistant-section .ai-panel-sketch {
    padding: 22px !important;
}

.ai-assistant-section .panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.ai-assistant-section .panel-heading h4 {
    margin: 0;
    color: var(--lux-ink) !important;
    font-size: 18px;
    line-height: 1.25;
    text-align: left;
}

.ai-assistant-section .panel-heading p {
    max-width: 340px;
    margin: 4px 0 0;
    color: rgba(47, 29, 18, 0.68) !important;
    font-size: 13px;
    line-height: 1.6;
    text-align: right;
}

.ai-assistant-section .panel-heading.compact {
    display: block;
    margin-bottom: 14px;
}

.ai-assistant-section .panel-heading.compact p {
    text-align: left;
}

.ai-assistant-section .ai-generator-left,
.ai-assistant-section .ai-generator-right {
    gap: 18px;
}

.ai-assistant-section .ai-input-group label,
.ai-assistant-section .ai-model-selector label,
.ai-assistant-section .ai-size-selector label {
    color: var(--lux-ink) !important;
    font-size: 14px;
    font-weight: 700;
}

.ai-assistant-section .ai-input-group textarea {
    min-height: 178px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.9) !important;
    line-height: 1.7;
}

.ai-assistant-section .ai-input-group textarea:focus,
.ai-assistant-section .knowledge-prompt-area textarea:focus,
.ai-assistant-section .chat-input-row input:focus,
.ai-assistant-section .sketch-input-row input:focus {
    border-color: rgba(42, 157, 143, 0.42) !important;
    box-shadow: 0 0 0 4px rgba(42, 157, 143, 0.12) !important;
    outline: none;
}

.ai-assistant-section .model-dropdown {
    margin-bottom: 0;
}

.ai-assistant-section .model-dropdown-selected {
    padding: 14px 16px !important;
    background: rgba(255, 255, 255, 0.9) !important;
}

.ai-assistant-section .model-dropdown-menu {
    max-height: 360px;
    overflow-y: auto;
    border-radius: 8px !important;
    border: 1px solid rgba(90, 50, 27, 0.16) !important;
    background: rgba(255, 252, 245, 0.98) !important;
    box-shadow: 0 22px 46px rgba(58, 31, 14, 0.18) !important;
}

.ai-assistant-section .dropdown-item {
    padding: 13px 16px;
    border-bottom: 1px solid rgba(90, 50, 27, 0.08) !important;
}

.ai-assistant-section .dropdown-item:hover {
    background: rgba(42, 157, 143, 0.08) !important;
}

.ai-assistant-section .size-buttons {
    gap: 10px;
    margin-bottom: 0;
}

.ai-assistant-section .size-btn {
    min-height: 44px;
    background: rgba(255,255,255,0.84) !important;
}

.ai-assistant-section .size-btn.active,
.ai-assistant-section .tab-btn.active {
    background: linear-gradient(135deg, #b94d38, #d4a03d) !important;
    color: #fff !important;
}

.ai-assistant-section .btn-generate-image {
    min-height: 56px;
    margin-top: 2px;
    font-size: 16px;
}

.ai-assistant-section .generated-image-area {
    min-height: 420px;
    border: 1px solid rgba(90, 50, 27, 0.12) !important;
    background:
        radial-gradient(circle at 82% 12%, rgba(42,157,143,0.12), transparent 34%),
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(250,244,232,0.96)) !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.72) !important;
}

.ai-assistant-section .image-placeholder {
    min-height: 420px;
    color: rgba(47, 29, 18, 0.62);
}

.ai-assistant-section .placeholder-icon {
    width: 92px;
    height: 92px;
    display: grid;
    place-items: center;
    margin-bottom: 20px;
    border-radius: 8px;
    font-size: 54px;
}

.ai-assistant-section .generated-image-info {
    background: linear-gradient(90deg, rgba(47,29,18,0.86), rgba(47,29,18,0.66));
}

.ai-assistant-section .image-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.ai-assistant-section .btn-image-action {
    min-width: 128px;
}

.ai-support-grid {
    display: grid;
    grid-template-columns: minmax(260px, 0.82fr) minmax(320px, 1.18fr);
    gap: 22px;
    align-items: stretch;
}

.ai-assistant-section .ai-tips-section,
.ai-assistant-section .ai-knowledge-section,
.ai-assistant-section .ai-sketch-section {
    margin-bottom: 0 !important;
}

.ai-assistant-section .ai-knowledge-section {
    grid-row: span 2;
}

.ai-assistant-section .tips-list li {
    padding: 10px 0 10px 28px;
    border-top: 1px solid rgba(90, 50, 27, 0.08);
}

.ai-assistant-section .tips-list li:first-child {
    border-top: 0;
}

.ai-assistant-section .knowledge-type-tabs {
    gap: 10px;
    margin-bottom: 18px;
    border-bottom: 0;
    padding-bottom: 0;
}

.ai-assistant-section .tab-btn {
    min-height: 44px;
    background: rgba(255,255,255,0.84) !important;
}

.ai-assistant-section .knowledge-prompt-area textarea {
    min-height: 132px;
    padding: 16px;
    background: rgba(255,255,255,0.9) !important;
}

.ai-assistant-section .prompt-suggestions {
    gap: 8px;
}

.ai-assistant-section .suggestion-label {
    color: rgba(47, 29, 18, 0.68);
    font-weight: 700;
}

.ai-assistant-section .suggestion-btn {
    border-radius: 999px !important;
    background: rgba(255,255,255,0.82) !important;
}

.ai-assistant-section .suggestion-btn:hover {
    color: #1f7b71 !important;
    background: rgba(42,157,143,0.1) !important;
}

.ai-assistant-section .btn-knowledge-ask,
.ai-assistant-section .btn-chat-send,
.ai-assistant-section .btn-sketch-generate,
.ai-assistant-section .btn-use-result {
    background: linear-gradient(135deg, #b94d38, #d4a03d) !important;
    color: #fff !important;
}

.ai-assistant-section .chat-messages,
.ai-assistant-section .knowledge-result,
.ai-assistant-section .result-content {
    border: 1px solid rgba(90, 50, 27, 0.12) !important;
    background: rgba(255,255,255,0.78) !important;
}

.ai-assistant-section .chat-message.user {
    background: linear-gradient(135deg, #b94d38, #d4a03d) !important;
}

.ai-assistant-section .chat-message.ai {
    border: 1px solid rgba(90, 50, 27, 0.12);
    background: rgba(255,255,255,0.9);
}

.ai-assistant-section .chat-input-row {
    gap: 10px;
}

.ai-assistant-section .chat-input-row input,
.ai-assistant-section .sketch-input-row input {
    min-height: 46px;
    background: rgba(255,255,255,0.9) !important;
}

.ai-assistant-section .result-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.ai-assistant-section .btn-copy-result {
    padding: 12px 22px;
    border-radius: 8px;
    border: 1px solid rgba(135, 83, 37, 0.2);
    background: rgba(255,255,255,0.78);
    color: var(--lux-brown);
    cursor: pointer;
}

.ai-assistant-section .ai-panel-sketch {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.ai-assistant-section .sketch-input-row {
    display: flex;
    gap: 10px;
}

.ai-assistant-section .sketch-result {
    border-radius: 8px;
    border: 1px solid rgba(90, 50, 27, 0.12);
    background: rgba(255,255,255,0.76);
}

@media (max-width: 980px) {
    .ai-assistant-hero,
    .ai-assistant-section .panel-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .ai-assistant-section .panel-heading p {
        text-align: left;
    }

    .ai-assistant-stats {
        width: 100%;
    }

    .ai-assistant-section .ai-image-generator,
    .ai-support-grid {
        grid-template-columns: 1fr !important;
    }

    .ai-assistant-section .ai-knowledge-section {
        grid-row: auto;
    }
}

@media (max-width: 620px) {
    .ai-assistant-stats {
        grid-template-columns: 1fr;
    }

    .ai-assistant-section .size-buttons,
    .ai-assistant-section .image-actions,
    .ai-assistant-section .chat-input-row,
    .ai-assistant-section .sketch-input-row,
    .ai-assistant-section .result-actions {
        flex-direction: column;
    }

    .ai-assistant-section .btn-image-action,
    .ai-assistant-section .btn-chat-send,
    .ai-assistant-section .btn-sketch-generate {
        width: 100%;
    }
}

.vr-3d-viewer-section {
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(45, 74, 58, 0.1) 0%, rgba(139, 115, 85, 0.1) 100%);
    border-radius: 20px;
    border: 2px solid rgba(45, 74, 58, 0.3);
}

.vr-3d-viewer-section .section-title {
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    font-size: 36px;
    color: #2d4a3a;
    text-align: center;
    margin-bottom: 10px;
}

.vr-3d-viewer-section .section-desc {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 30px;
}

.viewer-container {
    position: relative;
    background: linear-gradient(135deg, #1a2a4a 0%, #050a15 100%);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

#painting3DCanvas {
    display: block;
    margin: 0 auto;
    cursor: grab;
}

#painting3DCanvas:active {
    cursor: grabbing;
}

.viewer-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    background: rgba(0, 0, 0, 0.6);
    padding: 10px 20px;
    border-radius: 30px;
}

.viewer-btn {
    width: 45px;
    height: 45px;
    border: none;
    border-radius: 50%;
    background: rgba(210, 105, 30, 0.8);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.viewer-btn:hover {
    background: #D2691E;
    transform: scale(1.1);
}

.viewer-hint {
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
}

.painting-selector {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.painting-option {
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
    opacity: 0.7;
}

.painting-option:hover {
    opacity: 1;
    transform: translateY(-5px);
}

.painting-option.active {
    opacity: 1;
}

.painting-option.active .painting-thumb {
    box-shadow: 0 0 0 4px #D2691E, 0 8px 25px rgba(210, 105, 30, 0.4);
}

.painting-thumb {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    margin-bottom: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.painting-option span {
    display: block;
    font-size: 14px;
    color: #333;
}

.painting-info {
    background: #fff;
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.painting-info h4 {
    font-size: 24px;
    color: #2d4a3a;
    margin-bottom: 15px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.painting-info p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.painting-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.painting-meta span {
    font-size: 14px;
    color: #8B7355;
    padding: 5px 15px;
    background: rgba(139, 115, 85, 0.1);
    border-radius: 20px;
}

.ar-features-section {
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(45, 74, 58, 0.15) 0%, rgba(139, 115, 85, 0.15) 100%);
    border-radius: 20px;
    border: 2px solid rgba(45, 74, 58, 0.3);
}

.ar-features-section .section-title {
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    font-size: 36px;
    color: #2d4a3a;
    text-align: center;
    margin-bottom: 10px;
}

.ar-features-section .section-desc {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.feature-card {
    background: #fff;
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(45, 74, 58, 0.2);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h4 {
    font-size: 18px;
    color: #2d4a3a;
    margin-bottom: 15px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.feature-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
}

.exhibition-hall-section {
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(139, 115, 85, 0.1) 0%, rgba(45, 74, 58, 0.1) 100%);
    border-radius: 20px;
    border: 2px solid rgba(139, 115, 85, 0.3);
}

.exhibition-hall-section .section-title {
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    font-size: 36px;
    color: #8B7355;
    text-align: center;
    margin-bottom: 40px;
}

.hall-content {
    display: flex;
    gap: 40px;
    align-items: stretch;
}

.hall-visual {
    flex: 1;
    min-height: 300px;
}

.hall-placeholder {
    height: 100%;
    background: linear-gradient(135deg, #2d4a3a 0%, #4a6a5a 100%);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    min-height: 300px;
}

.hall-icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.hall-placeholder p {
    font-size: 18px;
    opacity: 0.8;
}

.hall-info {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.hall-feature {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid #D2691E;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
}

.hall-feature h4 {
    font-size: 20px;
    color: #2d4a3a;
    margin-bottom: 10px;
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
}

.hall-feature p {
    color: #666;
    font-size: 15px;
    line-height: 1.7;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .hall-content {
        flex-direction: column;
    }

    .hall-visual {
        min-height: 200px;
    }

    .hall-placeholder {
        min-height: 200px;
    }

    .ar-features-section,
    .exhibition-hall-section {
        padding: 25px;
    }
}

@media (max-width: 768px) {
    .viewer-container {
        border-radius: 12px;
    }

    #painting3DCanvas {
        width: 100%;
        height: auto;
    }

    .viewer-controls {
        padding: 8px 15px;
    }

    .viewer-btn {
        width: 38px;
        height: 38px;
        font-size: 16px;
    }

    .painting-selector {
        gap: 15px;
    }

    .painting-thumb {
        width: 60px;
        height: 60px;
    }

    .painting-meta {
        gap: 15px;
    }

    .painting-meta span {
        font-size: 12px;
        padding: 4px 10px;
    }
}

.deco-flying {
    position: fixed;
    top: 15%;
    right: 5%;
    width: 120px;
    height: 80px;
    color: #D2691E;
    pointer-events: none;
    z-index: 1;
    animation: floatFlying 6s ease-in-out infinite;
}

.deco-lotus {
    position: fixed;
    bottom: 10%;
    left: 3%;
    width: 100px;
    height: 100px;
    color: #8B4513;
    pointer-events: none;
    z-index: 1;
    animation: pulseLotus 4s ease-in-out infinite;
}

.deco-corner {
    position: fixed;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    color: #D2691E;
    pointer-events: none;
    z-index: 1;
}

@keyframes floatFlying {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(3deg); }
}

@keyframes pulseLotus {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.08); opacity: 0.9; }
}

.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

.ar-features-section.fade-in-visible,
.ar-features-section {
    opacity: 1;
    transform: translateY(0);
}

.vr-3d-viewer-section.fade-in-visible,
.vr-3d-viewer-section {
    opacity: 1;
    transform: translateY(0);
}

.cta-box.fade-in-visible,
.cta-box {
    opacity: 1;
    transform: translateY(0);
}

.feature-card {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card.fade-in-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.feature-card:nth-child(1) { transition-delay: 0.1s; }
.feature-card:nth-child(2) { transition-delay: 0.2s; }
.feature-card:nth-child(3) { transition-delay: 0.3s; }
.feature-card:nth-child(4) { transition-delay: 0.4s; }

@media (max-width: 768px) {
    body {
        font-size: 18px;
    }

    p, li {
        font-size: 18px;
    }

    .deco-flying {
        width: 80px;
        height: 50px;
        top: 10%;
        right: 2%;
    }

    .deco-lotus {
        width: 70px;
        height: 70px;
        bottom: 5%;
        left: 2%;
    }

    .deco-corner {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 17px;
    }

    p, li {
        font-size: 17px;
    }
}

.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(139, 69, 19, 0.4);
}

.btn:active {
    transform: translateY(-1px);
}

.ai-assistant-section {
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(42, 157, 143, 0.1) 0%, rgba(139, 69, 19, 0.1) 100%);
    border-radius: 20px;
    border: 2px solid rgba(42, 157, 143, 0.3);
}

.ai-assistant-section .section-title {
    font-family: STXingkai, Xingkai SC, 华文行楷, KaiTi, 'Noto Serif SC', serif;
    font-size: 36px;
    color: #2A9D8F;
    text-align: center;
    margin-bottom: 10px;
}

.ai-assistant-section .section-desc {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-bottom: 40px;
}

.ai-image-generator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.ai-generator-left {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.ai-generator-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ai-input-group {
    margin-bottom: 0;
}

.ai-input-group label {
    display: block;
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 500;
}

.ai-input-group textarea {
    width: 100%;
    min-height: 100px;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    resize: vertical;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.ai-input-group textarea:focus {
    outline: none;
    border-color: #2A9D8F;
}

.ai-model-selector label,
.ai-size-selector label {
    display: block;
    font-size: 16px;
    color: #333;
    margin-bottom: 12px;
    font-weight: 500;
}

.model-dropdown {
    position: relative;
    margin-bottom: 20px;
}

.model-dropdown-selected {
    display: flex;
    align-items: center;
    padding: 15px 18px;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.model-dropdown-selected:hover {
    border-color: #2A9D8F;
}

.model-dropdown-selected .selected-icon {
    font-size: 24px;
    margin-right: 12px;
}

.model-dropdown-selected .selected-name {
    flex: 1;
    font-size: 15px;
    font-weight: 600;
    color: #333;
}

.model-dropdown-selected .selected-tag {
    font-size: 12px;
    padding: 4px 10px;
    background: rgba(46, 139, 87, 0.15);
    color: #2E8B57;
    border-radius: 15px;
    margin-right: 12px;
}

.model-dropdown-selected .dropdown-arrow {
    font-size: 12px;
    color: #999;
    transition: transform 0.3s ease;
}

.model-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    margin-top: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    z-index: 100;
    overflow: hidden;
}

.dropdown-item {
    display: flex;
    align-items: center;
    padding: 15px 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 1px solid #f0f0f0;
}

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

.dropdown-item:hover {
    background: #f8f9fa;
}

.dropdown-item.selected {
    background: linear-gradient(135deg, rgba(42, 157, 143, 0.1), rgba(42, 157, 143, 0.05));
}

.dropdown-item .item-icon {
    font-size: 24px;
    margin-right: 12px;
}

.dropdown-item .item-info {
    flex: 1;
}

.dropdown-item .item-name {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 2px;
}

.dropdown-item .item-desc {
    display: block;
    font-size: 12px;
    color: #999;
}

.dropdown-item .item-badge {
    font-size: 11px;
    padding: 3px 8px;
    background: #f0f0f0;
    color: #666;
    border-radius: 10px;
}

.dropdown-item .item-badge.free {
    background: #27ae60;
    color: #fff;
    font-weight: bold;
}

.dropdown-item .item-badge.configured {
    background: #27ae60;
    color: #fff;
    font-weight: bold;
}

.dropdown-item.configured {
    background: linear-gradient(135deg, #f0fff0 0%, #e8f5e9 100%);
    border-left: 3px solid #27ae60;
}

.dropdown-item.configured .item-name {
    color: #2c5f2d;
}

.size-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.size-btn {
    flex: 1;
    padding: 12px;
    background: #f5f5f5;
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.size-btn:hover {
    background: #e8f5f3;
}

.size-btn.active {
    background: #2A9D8F;
    color: #fff;
}

.btn-generate-image {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.btn-generate-image:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 69, 19, 0.4);
}

.generated-image-area {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.image-placeholder {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    color: #999;
}

.placeholder-icon {
    font-size: 70px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.image-placeholder p {
    font-size: 16px;
    margin-bottom: 8px;
}

.placeholder-hint {
    font-size: 13px;
    color: #bbb;
}

.generated-image-wrapper {
    position: relative;
}

.generated-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.generated-image-info {
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.model-badge {
    padding: 4px 10px;
    background: #2A9D8F;
    color: #fff;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.prompt-preview {
    color: #fff;
    font-size: 13px;
    opacity: 0.9;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.image-loading {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #e0e0e0;
    border-top-color: #D2691E;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

.image-loading p {
    font-size: 16px;
    color: #333;
    margin-bottom: 5px;
}

.loading-hint {
    font-size: 13px;
    color: #999;
}

.image-actions {
    display: flex;
    gap: 12px;
}

.btn-image-action {
    flex: 1;
    padding: 14px;
    background: #f5f5f5;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-image-action:hover {
    background: #e8e8e8;
}

.btn-image-action.primary {
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
}

.btn-image-action.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 69, 19, 0.4);
}

.ai-tips-section {
    background: #fff;
    padding: 25px 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    border-left: 4px solid #2A9D8F;
}

.ai-tips-section h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.tips-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tips-list li {
    padding: 8px 0;
    font-size: 14px;
    color: #555;
    line-height: 1.6;
    padding-left: 25px;
    position: relative;
}

.tips-list li::before {
    content: '💡';
    position: absolute;
    left: 0;
}

.ai-input-area {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.ai-input-group {
    margin-bottom: 25px;
}

.ai-input-group label {
    display: block;
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 500;
}

.ai-input-group textarea {
    width: 100%;
    min-height: 120px;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    resize: vertical;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.ai-input-group textarea:focus {
    outline: none;
    border-color: #2A9D8F;
}

.ai-style-select label {
    display: block;
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 500;
}

.style-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.style-btn {
    flex: 1;
    padding: 15px 10px;
    background: #f5f5f5;
    border: 2px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
}

.style-btn:hover {
    background: #e8f5f3;
}

.style-btn.active {
    background: linear-gradient(135deg, #2A9D8F, #1e7b6f);
    color: #fff;
    border-color: #2A9D8F;
}

.style-icon {
    display: block;
    font-size: 28px;
    margin-bottom: 8px;
}

.style-name {
    font-size: 14px;
    font-weight: 500;
}

.btn-ai-generate {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #2A9D8F, #1e7b6f);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.btn-ai-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(42, 157, 143, 0.4);
}

.ai-btn-icon {
    font-size: 20px;
}

.ai-result-area {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    min-height: 300px;
}

.ai-result-placeholder {
    text-align: center;
    padding: 40px 20px;
    color: #999;
}

.ai-result-placeholder .ai-icon {
    font-size: 60px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.ai-result-placeholder p {
    font-size: 16px;
    margin-bottom: 15px;
}

.ai-result-placeholder ul {
    list-style: none;
    padding: 0;
}

.ai-result-placeholder li {
    padding: 8px 0;
    font-size: 14px;
    color: #666;
}

.ai-result-placeholder li::before {
    content: '✓ ';
    color: #2A9D8F;
    margin-right: 8px;
}

.ai-result-content {
    animation: fadeIn 0.5s ease;
}

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

.ai-result-header {
    margin-bottom: 20px;
}

.ai-badge {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, #2A9D8F, #1e7b6f);
    color: #fff;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.ai-result-body {
    margin-bottom: 20px;
}

.ai-section {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #2A9D8F;
}

.ai-section h4 {
    font-size: 15px;
    color: #333;
    margin-bottom: 10px;
}

.ai-section p {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
}

.ai-result-actions {
    text-align: center;
}

.btn-use-prompt {
    padding: 12px 30px;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border: none;
    border-radius: 25px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-use-prompt:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 69, 19, 0.4);
}

.ai-loading {
    text-align: center;
    padding: 40px 20px;
}

.ai-loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e0e0e0;
    border-top-color: #2A9D8F;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.ai-knowledge-section {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.ai-knowledge-section h4 {
    font-size: 22px;
    color: #333;
    margin-bottom: 10px;
    text-align: center;
}

.knowledge-desc {
    text-align: center;
    color: #666;
    font-size: 14px;
    margin-bottom: 25px;
}

.knowledge-type-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 15px;
}

.tab-btn {
    flex: 1;
    padding: 12px 20px;
    background: #f5f5f5;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: #e8f5f3;
}

.tab-btn.active {
    background: linear-gradient(135deg, #2A9D8F, #1e7b6f);
    color: #fff;
}

.knowledge-prompt-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.knowledge-prompt-area textarea {
    width: 100%;
    min-height: 100px;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
    resize: vertical;
    font-family: inherit;
}

.knowledge-prompt-area textarea:focus {
    outline: none;
    border-color: #2A9D8F;
}

.prompt-suggestions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.suggestion-label {
    font-size: 13px;
    color: #666;
}

.suggestion-btn {
    padding: 6px 12px;
    background: #f0f0f0;
    border: none;
    border-radius: 15px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.suggestion-btn:hover {
    background: #2A9D8F;
    color: #fff;
}

.btn-knowledge-ask {
    padding: 14px 25px;
    background: linear-gradient(135deg, #2A9D8F, #1e7b6f);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-knowledge-ask:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(42, 157, 143, 0.4);
}

.knowledge-chat-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-height: 400px;
}

.chat-messages {
    flex: 1;
    min-height: 200px;
    max-height: 300px;
    overflow-y: auto;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-message {
    padding: 12px 15px;
    border-radius: 10px;
    max-width: 85%;
    line-height: 1.6;
    font-size: 14px;
}

.chat-message.user {
    background: linear-gradient(135deg, #2A9D8F, #1e7b6f);
    color: #fff;
    align-self: flex-end;
}

.chat-message.ai {
    background: #fff;
    border: 1px solid #e0e0e0;
    align-self: flex-start;
}

.chat-input-row {
    display: flex;
    gap: 10px;
}

.chat-input-row input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 14px;
}

.chat-input-row input:focus {
    outline: none;
    border-color: #2A9D8F;
}

.btn-chat-send {
    padding: 12px 20px;
    background: #2A9D8F;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
}

.btn-chat-send:hover {
    background: #1e7b6f;
}

.knowledge-result {
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(42, 157, 143, 0.1), rgba(42, 157, 143, 0.05));
    border-radius: 12px;
    border: 2px solid rgba(42, 157, 143, 0.3);
}

.result-header {
    margin-bottom: 15px;
}

.result-badge {
    display: inline-block;
    padding: 6px 14px;
    background: #2A9D8F;
    color: #fff;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.result-content {
    padding: 15px;
    background: #fff;
    border-radius: 10px;
    line-height: 1.8;
    font-size: 14px;
    color: #333;
    max-height: 300px;
    overflow-y: auto;
}

.result-actions {
    display: flex;
    gap: 12px;
    margin-top: 15px;
}

.btn-use-result {
    flex: 1;
    padding: 12px 20px;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-use-result:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 69, 19, 0.4);
}

.btn-copy-result {
    padding: 12px 20px;
    background: #f0f0f0;
    color: #333;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

.btn-copy-result:hover {
    background: #e0e0e0;
}

@media (max-width: 600px) {
    .ai-knowledge-section {
        padding: 20px;
    }

    .prompt-suggestions {
        flex-direction: column;
        align-items: flex-start;
    }

    .result-actions {
        flex-direction: column;
    }
}

.ai-sketch-section {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.ai-sketch-section h4 {
    font-size: 22px;
    color: #333;
    margin-bottom: 10px;
    text-align: center;
}

.sketch-desc {
    text-align: center;
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}

.sketch-input-row {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.sketch-input-row input {
    flex: 1;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: border-color 0.3s ease;
}

.sketch-input-row input:focus {
    outline: none;
    border-color: #2A9D8F;
}

.btn-sketch-generate {
    padding: 14px 25px;
    background: linear-gradient(135deg, #D2691E, #8B4513);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.btn-sketch-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(139, 69, 19, 0.4);
}

.sketch-result {
    display: flex;
    gap: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    animation: fadeIn 0.5s ease;
}

.sketch-preview {
    width: 150px;
    height: 150px;
    background: #fff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

.sketch-preview svg {
    width: 120px;
    height: 120px;
}

.sketch-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sketch-info h5 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

.sketch-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

@media (max-width: 900px) {
    .ai-image-generator {
        grid-template-columns: 1fr;
    }

    .model-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .size-buttons {
        flex-wrap: wrap;
    }

    .size-btn {
        min-width: calc(50% - 5px);
    }

    .image-actions {
        flex-wrap: wrap;
    }

    .btn-image-action {
        min-width: calc(50% - 6px);
    }
}

@media (max-width: 600px) {
    .ai-assistant-section {
        padding: 25px;
    }

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

    .image-actions {
        flex-direction: column;
    }

    .btn-image-action {
        width: 100%;
    }

    .sketch-input-row {
        flex-direction: column;
    }

    .btn-sketch-generate {
        width: 100%;
    }

    .sketch-result {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .ai-sketch-section {
        padding: 20px;
    }
}

.feature-card {
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #D2691E, #8B4513, #D2691E);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::after {
    transform: scaleX(1);
}

.viewer-btn {
    position: relative;
    overflow: hidden;
}

.viewer-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.viewer-btn:hover::after {
    opacity: 1;
}

.viewer-btn:hover {
    transform: scale(1.15);
    box-shadow: 0 0 20px rgba(210, 105, 30, 0.5);
}

.painting-option {
    position: relative;
    transition: all 0.3s ease;
}

.painting-option::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 14px;
    background: linear-gradient(135deg, #D2691E, #8B4513, #D2691E);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.painting-option:hover::before {
    opacity: 1;
}

.painting-option:hover {
    transform: translateY(-5px) scale(1.05);
}

.painting-thumb {
    transition: all 0.3s ease;
}

.painting-option:hover .painting-thumb {
    box-shadow: 0 10px 30px rgba(139, 69, 19, 0.4);
}

.side-deco {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
}

.left-deco {
    left: 0;
    animation: floatLeft 8s ease-in-out infinite;
}

.right-deco {
    right: 0;
    animation: floatRight 8s ease-in-out infinite;
}

.deco-svg {
    width: 100px;
    height: 350px;
}

@media (max-width: 1200px) {
    .side-deco {
        display: none;
    }
}

@keyframes floatLeft {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(10px); }
}

@keyframes floatRight {
    0%, 100% { transform: translateY(-50%) translateX(0); }
    50% { transform: translateY(-50%) translateX(-10px); }
}

.guide-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.guide-tooltip {
    animation: tooltipBounce 0.5s ease;
}

@keyframes tooltipBounce {
    0% { transform: translateX(-50%) translateY(-20px); opacity: 0; }
    50% { transform: translateX(-50%) translateY(5px); }
    100% { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.guide-tooltip button:hover {
    background: rgba(255,255,255,0.3) !important;
    transform: scale(1.05);
}

/* ===== 2026 界面视觉优化覆盖 ===== */
.navbar {
    padding: 14px 24px;
    background: linear-gradient(180deg, rgba(28, 16, 8, 0.72), rgba(28, 16, 8, 0.18));
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.navbar.scrolled {
    background: rgba(65, 31, 12, 0.94);
    padding: 10px 24px;
}

.navbar .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0;
}

.logo {
    gap: 8px;
    color: #fff4df;
    text-shadow: 0 2px 14px rgba(0,0,0,0.35);
}

.nav-menu {
    gap: 6px;
    align-items: center;
}

.nav-menu a {
    color: rgba(255, 244, 223, 0.88);
    font-size: 15px;
    padding: 9px 14px;
    border: 1px solid transparent;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #fff7e8;
    background: rgba(212, 160, 61, 0.16);
    border-color: rgba(212, 160, 61, 0.28);
    transform: translateY(-1px);
}

.hero {
    min-height: 92vh;
    height: auto;
    align-items: center;
    padding: 120px 20px 96px;
}

.hero::before {
    background:
        linear-gradient(180deg, rgba(26,15,10,0.36) 0%, rgba(26,15,10,0.54) 58%, rgba(26,15,10,0.66) 100%),
        linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(20,10,4,0.55) 100%);
}

.hero::after {
    height: 80px;
    background: linear-gradient(transparent, rgba(250, 243, 232, 0.98));
}

.hero-content {
    width: min(1120px, 100%);
    text-align: center;
    padding: 0;
    background: transparent;
    border-radius: 0;
    margin: 0 auto;
}

.hero-content h1 {
    max-width: 940px;
    font-size: clamp(42px, 6vw, 76px);
    line-height: 1.12;
    margin-bottom: 22px;
    margin-left: auto;
    margin-right: auto;
    color: #fff3dc;
    text-shadow: 0 10px 34px rgba(0,0,0,0.65);
}

.hero-content p {
    max-width: 760px;
    font-size: 20px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 244, 223, 0.92);
}

.hero-content p:nth-child(2) {
    display: block;
    color: rgba(255, 244, 223, 0.92);
    font-size: 20px;
    margin-bottom: 10px;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
}

.hero-buttons {
    justify-content: center;
    margin-top: 34px;
}

.btn {
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(0,0,0,0.18);
}

.btn-primary {
    background: linear-gradient(135deg, #c8553d, #e09f3e);
}

.btn-secondary {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255, 226, 163, 0.6);
}

.section {
    padding: 90px 0;
}

.section-header h2 {
    color: #432616;
}

.section-subtitle {
    color: #7a5b42;
}

.about-section,
.tech-section {
    background:
        linear-gradient(180deg, rgba(255,255,255,0.35), rgba(255,255,255,0)),
        linear-gradient(145deg, #f7ecdc 0%, #e6cfad 44%, #caa26f 100%);
}

.about-text,
.origin-section,
.about-features .feature-item,
.carousel-container,
.tech-card {
    border-radius: 8px;
    border: 1px solid rgba(132, 75, 34, 0.18);
    box-shadow: 0 18px 45px rgba(89, 47, 20, 0.12), inset 0 1px 0 rgba(255,255,255,0.65);
}

.about-top-row,
.about-bottom-row {
    gap: 28px;
}

.about-text h3,
.origin-header h4,
.tech-card h3 {
    color: #4f2d18;
}

.origin-highlight {
    background: rgba(42, 157, 143, 0.08);
    border-left-color: #2a9d8f;
}

.tech-grid {
    gap: 24px;
}

.tech-card {
    padding: 32px 26px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.tech-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 26px 56px rgba(89, 47, 20, 0.22);
}

.tech-desc {
    color: #715037;
}

.tech-features li {
    color: #4f3828;
}

.btn-card {
    border-radius: 8px;
}

.footer {
    background:
        linear-gradient(180deg, rgba(0,0,0,0.08), rgba(0,0,0,0)),
        #3f210f;
}

@media (max-width: 992px) {
    .navbar {
        padding: 12px 16px;
    }

    .hero {
        padding: 108px 20px 78px;
    }

    .hero-content {
        text-align: center;
    }

    .hero-content h1,
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 88vh;
        padding-top: 96px;
    }

    .hero-content h1 {
        font-size: 40px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .about-text,
    .origin-section,
    .carousel-container,
    .tech-card {
        padding: 24px 20px;
    }

    .about-hero-stats {
        grid-template-columns: 1fr;
    }
}

/* ===== 子页面高级卡片视觉系统 ===== */
:root {
    --lux-ink: #2f1d12;
    --lux-brown: #5a321b;
    --lux-gold: #d4a03d;
    --lux-red: #c8553d;
    --lux-teal: #2a9d8f;
    --lux-paper: rgba(255, 252, 245, 0.92);
    --lux-paper-strong: rgba(255, 250, 240, 0.98);
    --lux-border: rgba(135, 83, 37, 0.18);
    --lux-shadow: 0 22px 58px rgba(76, 39, 15, 0.16);
    --lux-shadow-hover: 0 32px 78px rgba(76, 39, 15, 0.24);
}

.page-header {
    overflow: hidden;
    min-height: 58vh;
    background-size: cover;
}

.page-header::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 130px;
    pointer-events: none;
    background: linear-gradient(transparent, rgba(250, 243, 232, 0.98));
    z-index: 2;
}

.page-header .header-content,
.page-header .header-cta {
    position: relative;
    z-index: 3;
}

.page-header.remote-header {
    background:
        linear-gradient(120deg, rgba(24, 12, 6, 0.72), rgba(38, 69, 91, 0.34)),
        url('../images/ai-engine.jpg') center/cover no-repeat;
}

.page-header.vr-header {
    background:
        linear-gradient(120deg, rgba(16, 28, 42, 0.76), rgba(78, 49, 25, 0.42)),
        url('../images/vr-ar-exhibition.jpg') center/cover no-repeat;
}

.page-header.community-header {
    background:
        linear-gradient(120deg, rgba(52, 27, 13, 0.76), rgba(143, 78, 34, 0.34)),
        url('../images/bg.webp') center/cover no-repeat;
}

.header-content.vr-hero {
    width: min(1080px, calc(100% - 40px));
    margin: 0 auto;
    padding: 60px 24px;
}

.title-wrapper h1,
.page-title,
.header-content h1 {
    color: #fff5df;
    font-size: clamp(38px, 5.6vw, 68px);
    line-height: 1.12;
    letter-spacing: 0;
    text-shadow: 0 12px 36px rgba(0, 0, 0, 0.56);
}

.title-wrapper .subtitle,
.page-subtitle,
.header-content p {
    color: rgba(255, 246, 229, 0.9);
    font-size: clamp(16px, 2vw, 21px);
    text-shadow: 0 6px 22px rgba(0, 0, 0, 0.42);
}

.deco-left,
.deco-right {
    opacity: 0.68;
    filter: drop-shadow(0 8px 18px rgba(0,0,0,0.24));
}

.module-section,
.content-section,
.custom-section-new,
.gallery-section,
.ar-features-section,
.vr-3d-viewer-section,
.exhibition-hall-section,
.ai-assistant-section,
.clay-experience-section {
    background:
        radial-gradient(circle at 14% 8%, rgba(42, 157, 143, 0.08), transparent 32%),
        radial-gradient(circle at 88% 16%, rgba(200, 85, 61, 0.08), transparent 34%),
        linear-gradient(180deg, #fbf2e4 0%, #f4e3ca 100%) !important;
}

.module-intro,
.ai-highlight-box,
.cta-box,
.ai-assistant-section,
.ai-generator-left,
.ai-generator-right,
.generated-image-area,
.ai-tips-section,
.ai-knowledge-section,
.ai-sketch-section,
.vr-3d-viewer-section,
.ar-features-section,
.exhibition-hall-section,
.painting-info,
.viewer-container,
.custom-card,
.custom-section-wrapper,
.size-card,
.contact-form-card,
.upload-card-new,
.selected-product-bar,
.tracking-card,
.product-display-card,
.product-more-card,
.gallery-item,
.feature-card,
.detail-card,
.stat-card,
.knowledge-card,
.result-card {
    border-radius: 8px !important;
    border: 1px solid var(--lux-border) !important;
    background:
        linear-gradient(145deg, rgba(255,255,255,0.78), rgba(255,250,239,0.96)),
        var(--lux-paper-strong) !important;
    box-shadow: var(--lux-shadow), inset 0 1px 0 rgba(255,255,255,0.72) !important;
    position: relative;
}

.module-intro::before,
.ai-highlight-box::before,
.cta-box::before,
.ai-assistant-section::before,
.custom-card::before,
.product-display-card::before,
.gallery-item::before,
.feature-card::before,
.detail-card::before,
.size-card::before,
.contact-form-card::before,
.upload-card-new::before,
.vr-3d-viewer-section::before,
.ar-features-section::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 3px;
    border-radius: 8px 8px 0 0;
    background: linear-gradient(90deg, var(--lux-red), var(--lux-gold), var(--lux-teal));
    opacity: 0.92;
    pointer-events: none;
}

.module-intro:hover,
.ai-highlight-box:hover,
.cta-box:hover,
.ai-assistant-section:hover,
.custom-card:hover,
.size-card:hover,
.contact-form-card:hover,
.upload-card-new:hover,
.product-display-card:hover,
.product-more-card:hover,
.gallery-item:hover,
.feature-card:hover,
.detail-card:hover,
.stat-card:hover,
.knowledge-card:hover,
.result-card:hover,
.painting-option:hover {
    transform: translateY(-6px) !important;
    box-shadow: var(--lux-shadow-hover), inset 0 1px 0 rgba(255,255,255,0.8) !important;
}

.module-intro,
.ai-highlight-box,
.ai-assistant-section,
.vr-3d-viewer-section,
.ar-features-section,
.exhibition-hall-section,
.custom-section-wrapper {
    padding: clamp(28px, 4vw, 44px) !important;
}

.section-title,
.module-intro h2,
.ai-highlight-box h3,
.cta-box h3,
.card-title,
.product-display-name,
.gallery-name,
.feature-card h4,
.detail-card h3,
.painting-info h4,
.ai-knowledge-section h4,
.ai-sketch-section h4 {
    color: var(--lux-ink) !important;
    letter-spacing: 0 !important;
}

.section-desc,
.module-intro p,
.ai-highlight-box p,
.cta-box p,
.product-display-desc,
.gallery-meta,
.feature-card p,
.detail-card p,
.painting-info p,
.tips-list li,
.knowledge-desc {
    color: rgba(47, 29, 18, 0.72) !important;
}

.ai-highlight-box img,
.product-display-image,
.gallery-image,
.viewer-container canvas,
.painting-thumb {
    border-radius: 8px !important;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.42), 0 14px 32px rgba(58, 31, 14, 0.15) !important;
}

.ai-image-generator,
.features-grid,
.gallery-grid,
.products-display,
.size-grid,
.custom-cards,
.feature-detail-grid,
.preview-grid,
.stats-grid {
    gap: 22px !important;
}

.model-dropdown-selected,
.dropdown-item,
.size-btn,
.style-btn,
.tab-btn,
.suggestion-btn,
.btn-image-action,
.knowledge-prompt-area textarea,
.chat-input-row input,
.ai-input-group textarea,
.sketch-input-row input,
.form-group input,
.form-group select,
.form-group textarea {
    border-radius: 8px !important;
    border: 1px solid rgba(90, 50, 27, 0.16) !important;
    background: rgba(255, 255, 255, 0.82) !important;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.72) !important;
}

.model-dropdown-selected:hover,
.dropdown-item:hover,
.size-btn:hover,
.style-btn:hover,
.tab-btn:hover,
.suggestion-btn:hover,
.btn-image-action:hover {
    border-color: rgba(42, 157, 143, 0.42) !important;
    background: rgba(255, 252, 245, 0.96) !important;
}

.size-card.selected,
.pottery-option.selected,
.style-btn.active,
.size-btn.active,
.tab-btn.active,
.painting-option.active {
    border-color: rgba(200, 85, 61, 0.65) !important;
    background:
        linear-gradient(145deg, rgba(255,248,234,0.98), rgba(255,236,213,0.9)) !important;
    box-shadow: 0 18px 40px rgba(200, 85, 61, 0.16), inset 0 1px 0 rgba(255,255,255,0.82) !important;
}

.btn,
.btn-card,
.btn-primary,
.btn-secondary,
.header-cta,
.btn-generate-image,
.btn-ai-generate,
.btn-knowledge-ask,
.btn-use-prompt,
.btn-use-result,
.btn-sketch-generate,
.btn-submit-custom,
.product-select-btn,
.upload-btn-chinese,
.viewer-btn,
.copy-btn,
.selected-product-clear {
    border-radius: 8px !important;
    letter-spacing: 0 !important;
}

.btn-primary,
.btn-primary-card,
.btn-generate-image,
.btn-ai-generate,
.btn-knowledge-ask,
.btn-use-prompt,
.btn-use-result,
.btn-sketch-generate,
.btn-submit-custom,
.product-select-btn,
.header-cta {
    background: linear-gradient(135deg, #b94d38, #d4a03d) !important;
    border: 1px solid rgba(255, 226, 163, 0.26) !important;
    color: #fff !important;
    box-shadow: 0 14px 30px rgba(169, 84, 35, 0.24) !important;
}

.btn-secondary,
.btn-secondary-card,
.btn-image-action,
.copy-btn,
.selected-product-clear {
    background: rgba(255,255,255,0.76) !important;
    border: 1px solid rgba(135, 83, 37, 0.2) !important;
    color: var(--lux-brown) !important;
}

.btn:hover,
.btn-card:hover,
.btn-generate-image:hover,
.btn-ai-generate:hover,
.btn-knowledge-ask:hover,
.btn-use-prompt:hover,
.btn-use-result:hover,
.btn-sketch-generate:hover,
.btn-submit-custom:hover,
.product-select-btn:hover,
.upload-btn-chinese:hover,
.viewer-btn:hover,
.copy-btn:hover {
    transform: translateY(-3px) !important;
    box-shadow: 0 20px 42px rgba(93, 41, 6, 0.24) !important;
}

.feature-icon,
.card-icon,
.placeholder-icon,
.product-more-icon,
.viewer-btn {
    background: linear-gradient(135deg, rgba(200, 85, 61, 0.12), rgba(42, 157, 143, 0.12)) !important;
    color: var(--lux-red) !important;
    border: 1px solid rgba(135, 83, 37, 0.14);
}

.product-display-card,
.gallery-item,
.feature-card,
.painting-option {
    overflow: hidden !important;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease !important;
}

.product-display-image::after,
.gallery-image::after {
    background: linear-gradient(180deg, transparent 36%, rgba(47, 29, 18, 0.22)) !important;
}

.product-display-price,
.selected-product-price,
.model-badge,
.result-badge,
.ai-badge {
    color: var(--lux-red) !important;
}

.item-badge,
.item-badge.free,
.item-badge.configured,
.model-badge,
.ai-badge,
.result-badge {
    border-radius: 999px !important;
    background: rgba(42, 157, 143, 0.12) !important;
    color: #1f7b71 !important;
    border: 1px solid rgba(42, 157, 143, 0.22) !important;
}

.generated-image-area,
.image-placeholder,
.image-loading,
.chat-messages,
.result-content {
    background: rgba(255, 255, 255, 0.74) !important;
}

.viewer-container {
    background:
        linear-gradient(145deg, rgba(23, 31, 39, 0.96), rgba(55, 37, 24, 0.92)) !important;
}

.painting-selector {
    gap: 14px !important;
}

.painting-option {
    border: 1px solid var(--lux-border) !important;
    background: rgba(255, 252, 245, 0.88) !important;
    border-radius: 8px !important;
}

.game-navbar {
    background: rgba(32, 17, 9, 0.88) !important;
    border-bottom: 1px solid rgba(212, 160, 61, 0.34) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
}

.progress-section,
.chapter-card,
.game-stage,
.modal-content,
.runner-summary,
.quiz-game,
.creation-game,
.puzzle-game,
.pattern-game,
.clean-game,
.clay-info,
.color-palette {
    border-radius: 8px !important;
    border: 1px solid rgba(212, 160, 61, 0.24) !important;
    background:
        linear-gradient(145deg, rgba(74, 44, 32, 0.78), rgba(28, 16, 10, 0.92)) !important;
    box-shadow: 0 22px 58px rgba(0, 0, 0, 0.32), inset 0 1px 0 rgba(255,255,255,0.06) !important;
}

.chapter-card:hover,
.collection-btn:hover,
.game-btn:hover,
.codex-item:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 30px 72px rgba(0, 0, 0, 0.42), 0 0 34px rgba(212,160,61,0.14) !important;
}

.collection-btn,
.icon-btn,
.game-btn,
.stat-pill,
.stage-tag,
.codex-tab,
.codex-item,
.pattern-option,
.quiz-option,
.brush-btn,
.tool-btn {
    border-radius: 8px !important;
}

@media (max-width: 900px) {
    .header-content.vr-hero {
        gap: 18px;
        padding: 48px 18px;
    }

    .deco-left,
    .deco-right {
        display: none;
    }

    .module-intro,
    .ai-highlight-box,
    .ai-assistant-section,
    .vr-3d-viewer-section,
    .ar-features-section,
    .exhibition-hall-section,
    .custom-section-wrapper {
        padding: 24px 18px !important;
    }

    .ai-image-generator,
    .features-grid,
    .gallery-grid,
    .products-display,
    .size-grid,
    .custom-cards {
        grid-template-columns: 1fr !important;
    }
}