* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #cbd5e1 100%);
    color: rgba(0, 0, 0, 0.88);
    min-height: 100vh;
    position: relative;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 60% 60%, rgba(236, 72, 153, 0.04) 0%, transparent 50%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tech" patternUnits="userSpaceOnUse" width="40" height="40"><path d="M20,0 L20,40 M0,20 L40,20" stroke="rgba(59,130,246,0.07)" stroke-width="0.5"/><circle cx="20" cy="20" r="1" fill="rgba(16,185,129,0.10)"/><rect x="18" y="18" width="4" height="4" fill="none" stroke="rgba(139,92,246,0.08)" stroke-width="0.5"/></pattern></defs><rect width="100%" height="100%" fill="url(%23tech)"/></svg>');
   
}
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 60% 60%, rgba(236, 72, 153, 0.04) 0%, transparent 50%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tech" patternUnits="userSpaceOnUse" width="40" height="40"><path d="M20,0 L20,40 M0,20 L40,20" stroke="rgba(59,130,246,0.07)" stroke-width="0.5"/><circle cx="20" cy="20" r="1" fill="rgba(16,185,129,0.10)"/><rect x="18" y="18" width="4" height="4" fill="none" stroke="rgba(139,92,246,0.08)" stroke-width="0.5"/></pattern></defs><rect width="100%" height="100%" fill="url(%23tech)"/></svg>');
    pointer-events: none;
    z-index: -1;
    animation: backgroundFloat 20s ease-in-out infinite;
}
@keyframes backgroundFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}
.navbar {
    
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
    color: #fff;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(20px);
}
.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 48px;
    height: 64px;
}
.navbar-logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
    white-space: nowrap;
    flex-shrink: 0;
}
.navbar-logo img {
    height: 42px;
    width: auto;
    margin-right: 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.navbar-logo:hover img {
    transform: scale(1.05);
}
.navbar-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}
.navbar-menu > .menu-item {
    position: relative;
    padding: 0 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.2s;
}
.navbar-menu > .menu-item:hover {
    color: #00ffff;
}
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    color: #222;
    min-width: 140px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    border-radius: 8px;
    display: none;
    flex-direction: column;
    z-index: 10;
}
.menu-item:hover .dropdown {
    display: flex;
}
.dropdown-item {
    padding: 12px 20px;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s;
}
.dropdown-item:hover {
    background: #f0f9ff;
    color: #1677ff;
}
.main-content {
    margin-top: 30px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 48px 48px 48px;
   
}
#content{
    background-image: 
    radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 60% 60%, rgba(236, 72, 153, 0.04) 0%, transparent 50%),
    url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="tech" patternUnits="userSpaceOnUse" width="40" height="40"><path d="M20,0 L20,40 M0,20 L40,20" stroke="rgba(59,130,246,0.07)" stroke-width="0.5"/><circle cx="20" cy="20" r="1" fill="rgba(16,185,129,0.10)"/><rect x="18" y="18" width="4" height="4" fill="none" stroke="rgba(139,92,246,0.08)" stroke-width="0.5"/></pattern></defs><rect width="100%" height="100%" fill="url(%23tech)"/></svg>');

}
/* Hero区域 */
.hero-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 25%, #334155 50%, #475569 75%, #64748b 100%);
    color: #fff;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    padding: 80px 40px 60px 40px;
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.10) 0%, transparent 50%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="hero-tech" patternUnits="userSpaceOnUse" width="60" height="60"><path d="M30,0 L30,60 M0,30 L60,30" stroke="rgba(255,255,255,0.08)" stroke-width="0.8"/><circle cx="30" cy="30" r="2" fill="rgba(59,130,246,0.15)"/><rect x="28" y="28" width="4" height="4" fill="none" stroke="rgba(16,185,129,0.12)" stroke-width="0.8"/></pattern></defs><rect width="100%" height="100%" fill="url(%23hero-tech)"/></svg>');
    pointer-events: none;
    animation: heroFloat 15s ease-in-out infinite;
}
@keyframes heroFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg) scale(1); }
    33% { transform: translateY(-20px) rotate(1deg) scale(1.02); }
    66% { transform: translateY(10px) rotate(-0.5deg) scale(0.98); }
}
.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
}
.hero-text {
    text-align: left;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(16, 185, 129, 0.2));
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    color: #60a5fa;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.hero-badge::before {
    content: '🏆';
    margin-right: 8px;
    font-size: 16px;
}
.hero-title {
    font-size: 42px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, #ffffff 0%, #60a5fa 50%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    white-space: nowrap !important;
}
.hero-title .brand {
    color: #60a5fa !important;
    -webkit-text-fill-color: #60a5fa !important;
    text-shadow: 0 0 20px rgba(96, 165, 250, 0.5);
    margin-right: 8px;
    flex-shrink: 0;
}
.hero-product-logo {
    font-size: 28px;
    font-weight: 900;
    color: #60a5fa;
    margin-bottom: 8px;
    text-align: center;
    text-shadow: 0 0 15px rgba(96, 165, 250, 0.4);
}
.hero-subtitle {
    font-size: 20px;
    color: #cbd5e1;
    margin-bottom: 32px;
    line-height: 1.7;
    font-weight: 400;
    text-align: justify;
    word-break: keep-all;
    max-width: 100%;
}
.hero-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}
.hero-feature {
    display: flex;
    align-items: flex-start;
    font-size: 15px;
    color: #e2e8f0;
    line-height: 1.6;
    margin-bottom: 4px;
}
.hero-feature::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    margin-right: 12px;
    margin-top: 2px;
    font-size: 12px;
    font-weight: bold;
    color: #fff;
    flex-shrink: 0;
}
.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.hero-cta-primary {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: #fff;
    border: none;
    border-radius: 16px;
    padding: 18px 36px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.4);
    text-decoration: none;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-cta-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-4px);
    box-shadow: 0 20px 48px rgba(59, 130, 246, 0.6);
}
.hero-cta-secondary {
    background: transparent;
    color: #60a5fa;
    border: 2px solid rgba(96, 165, 250, 0.5);
    border-radius: 16px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}
.hero-cta-secondary:hover {
    background: rgba(96, 165, 250, 0.1);
    border-color: #60a5fa;
    transform: translateY(-2px);
}
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Space Visual 样式 */
.space-visual {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    gap: 16px;
    justify-items: center;
    align-items: center;
    margin: 24px 0;
    position: relative;
    min-height: 320px;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.space-visual::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100px;
    height: 100px;
    border: 2px dashed rgba(22,119,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.space-visual::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    border: 1px solid rgba(22,119,255,0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

/* 最外边框 */
.outer-border {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 380px;
    height: 380px;
    border: none;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    background: rgba(22,119,255,0.05);
}

/* 流动虚线连接器 */
.flow-connector {
    position: absolute;
    z-index: 2;
    pointer-events: none;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.flow-connector svg {
    width: 100%;
    height: 100%;
}

.flow-connector path {
    stroke: #1677ff;
    stroke-width: 2;
    stroke-dasharray: 8, 4;
    fill: none;
    stroke-linecap: round;
    animation: flowDash 2s linear infinite;
}

.flow-connector.provider path {
    stroke: #52c41a;
}

.flow-connector.user path {
    stroke: #fa8c16;
}

.flow-connector.service path {
    stroke: #722ed1;
}

@keyframes flowDash {
    0% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -12; }
}

@keyframes nodeFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
}

@keyframes pulse {
    0%, 100% { 
        background-position: 0% 50%;
        transform: scale(1);
    }
    50% { 
        background-position: 100% 50%;
        transform: scale(1.05);
    }
}

.space-node {
    background: linear-gradient(135deg, #1677ff, #4096ff);
    color: #fff;
    border-radius: 50%;
    width: 70px;
    height: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(22,119,255,0.15);
    position: relative;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: nodeFloat 3s ease-in-out infinite;
    text-align: center;
    line-height: 1.2;
    z-index: 3;
}
.space-node:nth-child(5) { animation-delay: 0s; }
.space-node:nth-child(6) { animation-delay: 0.3s; }
.space-node:nth-child(7) { animation-delay: 0.6s; }
.space-node:nth-child(8) { animation-delay: 0.9s; }
.space-node:nth-child(9) { animation-delay: 1.2s; }

.space-node:hover {
    transform: translateY(-8px) scale(1.1);
    box-shadow: 0 8px 24px rgba(22,119,255,0.25);
}

.space-node::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background: linear-gradient(45deg, #1677ff, #4096ff, #1677ff);
    background-size: 200% 200%;
    animation: pulse 2s ease-in-out infinite;
    opacity: 0.3;
    z-index: -1;
}

.space-node-icon {
    font-size: 20px;
    margin-bottom: 4px;
}

.space-node.provider {
    background: linear-gradient(135deg, #52c41a, #73d13d);
}
.space-node.provider::before {
    background: linear-gradient(45deg, #52c41a, #73d13d, #52c41a);
}

.space-node.user {
    background: linear-gradient(135deg, #fa8c16, #ffa940);
}
.space-node.user::before {
    background: linear-gradient(45deg, #fa8c16, #ffa940, #fa8c16);
}

.space-node.service {
    background: linear-gradient(135deg, #722ed1, #9254de);
}
.space-node.service::before {
    background: linear-gradient(45deg, #722ed1, #9254de, #722ed1);
}

.space-node.center {
    background: rgba(22,119,255,0.8);
    backdrop-filter: blur(10px);
    width: 90px;
    height: 90px;
    font-size: 13px;
    z-index: 4;
    grid-column: 2;
    grid-row: 2;
}

.space-node.center .space-node-icon {
    font-size: 24px;
    margin-bottom: 6px;
}

.space-node.provider:nth-child(5) {
    grid-column: 1;
    grid-row: 1;
}

.space-node.provider:nth-child(6) {
    grid-column: 3;
    grid-row: 1;
}

.space-node.user {
    grid-column: 1;
    grid-row: 3;
}

.space-node.service {
    grid-column: 3;
    grid-row: 3;
}
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .hero-title {
        font-size: 36px;
    }
    .hero-subtitle {
        font-size: 18px;
    }
    .hero-actions {
        justify-content: center;
    }
    .space-visual {
        max-width: 280px;
        min-height: 220px;
    }
    .space-node {
        width: 60px;
        height: 60px;
        font-size: 10px;
    }
    .space-node.center {
        width: 80px;
        height: 80px;
        font-size: 12px;
    }
}
/* 介绍区 */
.intro-section {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.10), 0 8px 32px rgba(59,130,246,0.06);
    border: 1px solid rgba(255,255,255,0.8);
    backdrop-filter: blur(18px);
    padding: 48px 36px 36px 36px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}
.intro-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.10) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
    z-index: 0;
}
.intro-title {
    font-size: 30px;
    font-weight: 900;
    margin-bottom: 20px;
    text-align: center;
    background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    position: relative;
    z-index: 1;
}
.intro-define {
    font-size: 18px;
    color: #475569;
    margin-bottom: 22px;
    text-align: center;
    line-height: 1.8;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

/* 新的介绍卡片样式 */
.intro-definition-card,
.intro-tech-card,
.intro-xtds-card,
.intro-function-card,
.intro-platform-card,
.intro-connector-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 32px 28px;
    margin-bottom: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.intro-definition-card:hover,
.intro-tech-card:hover,
.intro-xtds-card:hover,
.intro-function-card:hover,
.intro-platform-card:hover,
.intro-connector-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}

.definition-header,
.tech-header,
.xtds-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
}

.definition-icon,
.tech-icon,
.xtds-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.tech-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.xtds-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.definition-title,
.tech-title,
.xtds-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.definition-text,
.tech-text,
.xtds-text {
    font-size: 16px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 20px;
}

.definition-highlights {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.highlight-icon {
    font-size: 16px;
}

.highlight-text {
    font-size: 14px;
    font-weight: 600;
    color: #1e40af;
}

.tech-components {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 0;
}

.tech-component {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: rgba(16, 185, 129, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.1);
}

.component-icon {
    font-size: 20px;
    width: 40px;
    height: 40px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.component-name {
    font-size: 14px;
    font-weight: 600;
    color: #065f46;
    margin-bottom: 2px;
}

.component-desc {
    font-size: 12px;
    color: #6b7280;
}

.xtds-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.xtds-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(245, 158, 11, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(245, 158, 11, 0.1);
}

.feature-badge {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.feature-text {
    font-size: 14px;
    color: #92400e;
    line-height: 1.5;
}

/* 核心功能卡片样式 */
.function-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
}

.function-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

.function-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.function-text {
    font-size: 16px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 20px;
}

.function-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.function-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(139, 92, 246, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.function-feature .feature-icon {
    font-size: 20px;
    width: 40px;
    height: 40px;
    background: rgba(139, 92, 246, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.function-feature .feature-name {
    font-size: 14px;
    font-weight: 600;
    color: #581c87;
    margin-bottom: 4px;
}

.function-feature .feature-desc {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

/* 服务平台功能卡片样式 */
.platform-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
}

.platform-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.platform-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.platform-text {
    font-size: 16px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 20px;
}

.platform-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-bottom: 0;
}

.platform-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(16, 185, 129, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.1);
}

.platform-feature .feature-icon {
    font-size: 20px;
    width: 40px;
    height: 40px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.platform-feature .feature-name {
    font-size: 14px;
    font-weight: 600;
    color: #065f46;
    margin-bottom: 4px;
}

.platform-feature .feature-desc {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

/* 连接器功能卡片样式 */
.connector-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
}

.connector-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.connector-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.connector-text {
    font-size: 16px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 20px;
}

.connector-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin-bottom: 0;
}

.connector-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(245, 158, 11, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(245, 158, 11, 0.1);
}

.connector-feature .feature-icon {
    font-size: 20px;
    width: 40px;
    height: 40px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.connector-feature .feature-name {
    font-size: 14px;
    font-weight: 600;
    color: #92400e;
    margin-bottom: 4px;
}

.connector-feature .feature-desc {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
}

/* 可折叠卡片样式 */
.intro-collapsible-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 0;
    margin-bottom: 24px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.8);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.intro-collapsible-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.collapsible-header {
    display: flex;
    align-items: center;
    padding: 24px 28px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.collapsible-header:hover {
    background: rgba(59, 130, 246, 0.02);
}

.collapsible-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
    margin-right: 16px;
    flex-shrink: 0;
}

.collapsible-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
    flex: 1;
}

.collapsible-arrow {
    font-size: 18px;
    color: #64748b;
    transition: transform 0.3s ease;
    font-weight: bold;
}

.collapsible-header.active .collapsible-arrow {
    transform: rotate(180deg);
    color: #3b82f6;
}

.collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(59, 130, 246, 0.02);
}

.collapsible-content.active {
    max-height: 2000px;
    padding: 0 28px 28px 28px;
}

.collapsible-text {
    font-size: 16px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 20px;
    padding: 0;
}

/* 为不同卡片设置不同的图标颜色 */
.intro-collapsible-card:nth-child(2) .collapsible-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.intro-collapsible-card:nth-child(3) .collapsible-icon {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

.intro-collapsible-card:nth-child(4) .collapsible-icon {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

/* 技术架构详解部分样式 */
.tech-details-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

.tech-details-title {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tech-details-title::before {
    content: '🔧';
    font-size: 16px;
}

.tech-details-intro {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 16px;
    line-height: 1.6;
}

/* 调整定义卡片内的可折叠卡片样式 */
.intro-definition-card .intro-collapsible-card {
    margin-bottom: 16px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.intro-definition-card .intro-collapsible-card:last-child {
    margin-bottom: 0;
}

.intro-definition-card .collapsible-header {
    padding: 16px 24px;
}

.intro-definition-card .collapsible-title {
    font-size: 18px;
}

.intro-definition-card .collapsible-content.active {
    padding: 0 24px 24px 24px;
}

/* 调整定义卡片内可折叠卡片的整体高度 */
.intro-definition-card .intro-collapsible-card {
    margin-bottom: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.intro-definition-card .intro-collapsible-card:last-child {
    margin-bottom: 0;
}

/* 调整定义卡片内可折叠卡片的图标大小 */
.intro-definition-card .collapsible-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
}
.intro-features {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: center;
    margin-bottom: 12px;
}
.feature-block {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 20px 28px;
    min-width: 220px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    margin-bottom: 8px;
}
.feature-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1e293b;
}
.feature-list {
    text-align: left;
    font-size: 15px;
    color: #64748b;
}
/* 产品分级区 */
.tier-section {
    margin: 48px 0 36px 0;
}
.tier-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    justify-content: center;
}
.tier-tab {
    padding: 16px 32px;
    border-radius: 12px;
    background: transparent;
    color: #64748b;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 16px;
    position: relative;
    overflow: hidden;
}
.tier-tab.active {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}
.tier-content {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}
.tier-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(22,119,255,0.08);
    padding: 32px 24px;
    min-width: 260px;
    max-width: 340px;
    flex: 1 1 260px;
    text-align: center;
    margin-bottom: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tier-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.tier-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 16px 48px rgba(22,119,255,0.15);
}

.tier-card:hover::before {
    opacity: 1;
}

.tier-card:active {
    transform: translateY(-4px) scale(1.01);
}

/* 为不同版本卡片添加不同的悬停颜色 */
.tier-card:nth-child(1):hover {
    border: 2px solid rgba(59, 130, 246, 0.3);
}

.tier-card:nth-child(2):hover {
    border: 2px solid rgba(16, 185, 129, 0.3);
}

/* 添加选中状态 */
.tier-card.selected {
    border: 2px solid #1677ff;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(22,119,255,0.2);
}
.tier-title {
    font-size: 20px;
    font-weight: 800;
    color: #1677ff;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}
.tier-desc {
    font-size: 15px;
    color: #475569;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.tier-sample {
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}
.tier-spec {
    font-size: 13px;
    color: #64748b;
    position: relative;
    z-index: 1;
}
/* 数据运营解决方案区 */
.solution-section {
    margin: 48px 0 36px 0;
}
.solution-title {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 18px;
    color: #1e293b;
}
.solution-blocks {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    margin-bottom: 24px;
}
.solution-block {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    padding: 20px 18px;
    flex: 1 1 320px;
    min-width: 320px;
    border: 1px solid rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    position: relative;
}

.solution-block:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border-color: rgba(59, 130, 246, 0.2);
}
.solution-block h4 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1e293b;
}
.solution-block .solution-desc {
    font-size: 14px;
    color: #475569;
    margin-bottom: 8px;
    line-height: 1.5;
}
.solution-block .solution-chart {
    height: 120px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 12px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #475569;
    font-size: 13px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.solution-block .solution-chart::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.solution-block:hover .solution-chart {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
}

/* 流程图样式 */
.flow-chart {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    position: relative;
    z-index: 1;
    flex-wrap: nowrap;
    padding: 0 8px;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 4px 6px;
    background: rgba(255,255,255,0.9);
    border-radius: 6px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    min-width: 40px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.flow-step:hover {
    background: rgba(255,255,255,1);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
}

.flow-icon {
    font-size: 14px;
    line-height: 1;
}

.flow-text {
    font-size: 8px;
    font-weight: 600;
    color: #475569;
    text-align: center;
    line-height: 1.1;
}

.flow-arrow {
    font-size: 10px;
    color: #64748b;
    font-weight: bold;
    margin: 0 1px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .flow-chart {
        gap: 4px;
    }
    
    .flow-step {
        padding: 4px 6px;
        min-width: 40px;
    }
    
    .flow-icon {
        font-size: 16px;
    }
    
    .flow-text {
        font-size: 9px;
    }
    
    .flow-arrow {
        font-size: 12px;
        margin: 0 1px;
    }
}
/* 应用场景案例区 */
.case-section {
    margin: 48px 0 24px 0;
}
.case-title {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 18px;
    color: #1e293b;
}
.case-carousel {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    padding: 24px 20px;
    min-height: 120px;
    margin-bottom: 8px;
    /* 轮播图结构预留 */
}
/* 权威认可与合作区 */
.brand-section {
    margin: 48px 0 36px 0;
}
.brand-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #475569;
}
.brand-logos {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}
.brand-logo {
    width: 80px;
    height: 40px;
    background: #f0f9ff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #1677ff;
}
.certifications {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 16px;
}
.cert-badge {
    background: linear-gradient(135deg, #00ffff, #8a2be2);
    color: #fff;
    border-radius: 8px;
    padding: 8px 20px;
    font-size: 15px;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(0, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* X-TDS产品标题特效 */
.xtds-title {
    background: linear-gradient(135deg, #1677ff 0%, #4096ff 50%, #69b1ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.xtds-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
    animation: xtds-sweep 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes xtds-sweep {
    0% { 
        left: -100%;
        opacity: 0;
    }
    20% { 
        opacity: 1;
    }
    80% { 
        opacity: 1;
    }
    100% { 
        left: 100%;
        opacity: 0;
    }
}

/* 返回顶部按钮样式 */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    display: none;
}

#backToTop:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.6);
}

/* 产品介绍部分样式 */
.product-intro-section {
    margin-bottom: 48px;
}

.product-intro-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.10), 0 8px 32px rgba(59,130,246,0.06);
    border: 1px solid rgba(255,255,255,0.8);
    backdrop-filter: blur(18px);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.product-intro-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
    animation: float 8s ease-in-out infinite;
    z-index: 0;
}

.product-intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.product-intro-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

.product-intro-text p {
    font-size: 16px;
    color: #475569;
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-intro-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.product-intro-highlights .highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.product-intro-highlights .highlight-icon {
    font-size: 20px;
    width: 32px;
    height: 32px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.product-intro-highlights .highlight-text {
    font-size: 14px;
    font-weight: 600;
    color: #1e40af;
    margin-bottom: 4px;
}

.product-intro-highlights .highlight-desc {
    font-size: 13px;
    color: #64748b;
    line-height: 1.4;
}

.product-intro-visual {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    margin-top: 40px;
}

.product-advantages-section {
    margin-bottom: 48px;
}

@media (max-width: 768px) {
    .product-intro-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .product-intro-highlights {
        grid-template-columns: 1fr;
    }
}


.product-advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
@media (max-width: 900px) {
    .product-advantages-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .product-advantages-grid { grid-template-columns: 1fr; }
}
.advantage-card {
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(22,119,255,0.08);
    padding: 32px 24px 24px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 240px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255,255,255,0.8);
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1677ff, #4096ff, #69b1ff);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.advantage-card:hover {
    box-shadow: 0 16px 48px rgba(22,119,255,0.15);
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(22,119,255,0.2);
}

.advantage-card:hover::before {
    opacity: 1;
}

/* 案例按钮样式 */
.case-cta-container {
    text-align: center;
    margin-top: 32px;
    margin-bottom: 16px;
}

.case-cta-button {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    background: linear-gradient(135deg, #0f766e 0%, #0891b2 100%);
    color: white;
    padding: 18px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(15, 118, 110, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.case-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(15, 118, 110, 0.4);
    background: linear-gradient(135deg, #0d5a52 0%, #0e7490 100%);
}

.case-cta-button:active {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.case-cta-button::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;
}

.case-cta-button:hover::before {
    left: 100%;
}

.case-cta-icon {
    margin-right: 12px;
    font-size: 20px;
    transition: transform 0.3s ease;
}

.case-cta-text {
    font-weight: 700;
    letter-spacing: 0.5px;
}

.case-cta-arrow {
    margin-left: 12px;
    font-size: 16px;
    transition: transform 0.3s ease;
}

.case-cta-button:hover .case-cta-icon {
    transform: scale(1.1);
}

.case-cta-button:hover .case-cta-arrow {
    transform: translateX(4px);
}

.advantage-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    box-shadow: 0 4px 16px rgba(22,119,255,0.12);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(22,119,255,0.2);
}

.advantage-title {
    font-size: 20px;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.advantage-card:hover .advantage-title {
    color: #1677ff;
}

.advantage-desc {
    color: #64748b;
    font-size: 15px;
    line-height: 1.7;
    transition: color 0.3s ease;
}

.advantage-card:hover .advantage-desc {
    color: #475569;
}

/* 为不同颜色的图标添加对应的悬停效果 */
.advantage-card:nth-child(1):hover::before {
    background: linear-gradient(90deg, #1677ff, #4096ff, #69b1ff);
}

.advantage-card:nth-child(2):hover::before {
    background: linear-gradient(90deg, #00b894, #00cec9, #55a3ff);
}

.advantage-card:nth-child(3):hover::before {
    background: linear-gradient(90deg, #faad14, #ffc53d, #ffd666);
}

.advantage-card:nth-child(4):hover::before {
    background: linear-gradient(90deg, #00bcd4, #26c6da, #4dd0e1);
}

.advantage-card:nth-child(5):hover::before {
    background: linear-gradient(90deg, #a259ff, #b794f4, #d6bcfa);
}

.advantage-card:nth-child(6):hover::before {
    background: linear-gradient(90deg, #ff7675, #fd79a8, #fdcb6e);
}

/* 图标悬停时的颜色变化 */
.advantage-card:nth-child(1):hover .advantage-title {
    color: #1677ff;
}

.advantage-card:nth-child(2):hover .advantage-title {
    color: #00b894;
}

.advantage-card:nth-child(3):hover .advantage-title {
    color: #faad14;
}

.advantage-card:nth-child(4):hover .advantage-title {
    color: #00bcd4;
}

.advantage-card:nth-child(5):hover .advantage-title {
    color: #a259ff;
}

.advantage-card:nth-child(6):hover .advantage-title {
    color: #ff7675;
}
.card-carousel {
    overflow: hidden;
    position: relative;
    padding: 20px 0;
    touch-action: none;
    user-select: none;
    min-height: 400px;
    margin-bottom: 0;
    transform-style: preserve-3d;
    backface-visibility: hidden;
}
.carousel-track {
    display: flex;
    gap: 24px;
    will-change: transform;
    padding: 0 50px;
    align-items: center;
    /* 创建无限循环效果 */
    animation: scroll 30s linear infinite;
    transform-style: preserve-3d;
    backface-visibility: hidden;
}

@keyframes scroll {
    0% {
        transform: translateX(0) translateZ(0);
    }
    100% {
        transform: translateX(-1216px) translateZ(0); /* 精确计算：304px * 4 = 1216px */
    }
}
.case-card {
    pointer-events: auto;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.8);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    flex: 0 0 280px;
    width: 280px;
    min-width: 280px;
    max-width: 280px;
    height: 320px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 8px;
    backdrop-filter: blur(10px);
    transform-style: preserve-3d;
    backface-visibility: hidden;
}
.case-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 48px rgba(0,0,0,0.15);
}
.card-carousel::-webkit-scrollbar { display: none; }
.case-card-image {
    height: 160px;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    display: block;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.case-card-image::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.case-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 1;
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.case-card-content {
    padding: 24px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-card-title {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 10px;
}

.case-card-desc {
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
}