/* 固定导航覆盖 */
        .banner { margin-top: 70px; }

        /* 头部横幅 */
        .banner{
            width:100%;
            min-height:480px;
            background-image:url(/static/zhanpc/images/geo-banner.jpg);
            background-size:cover;
            background-position:center;
            background-repeat:no-repeat;
            position:relative;
            display:flex;
            align-items:center;
            padding:0 12%;
            overflow:hidden;
        }
        .banner-content{max-width:600px;z-index:2;}
        .banner-title{
            font-size:56px;
            font-weight:700;
            color:#1a1a1a;
            margin-bottom:14px;
            line-height:1.2;
            margin-top:-15px;
        }
        .banner-title .highlight{color:#4080ff;}
        .banner-desc{
            font-size:18px;
            color:#666;
            line-height:1.7;
            margin-bottom:28px;
        }
        .button-group{display:flex;gap:14px;}
        .btn{
            padding:10px 24px;
            border-radius:4px;
            font-size:15px;
            font-weight:500;
            border:none;
            cursor:pointer;
            transition:0.3s;
        }
        .btn-primary{background:#4080ff;color:#fff;}
        .btn-outline{background:#fff;color:#4080ff;border:1px solid #4080ff;}

        /* 导航栏 */
        .nav-container{
            width:100%;
            position:relative;
            background:#ffffff;
            border-top:1px solid #eee;
            border-bottom:1px solid #eee;
            overflow:hidden;
        }
        .nav-container::before{
            content:"";
            position:absolute;
            top:0;left:0;
            width:100%;height:100%;
            background:linear-gradient(180deg, rgba(245,250,255,0.8) 0%, rgba(255,255,255,0) 100%);
            z-index:1;
            pointer-events:none;
        }
        .nav-tabs{
            display:flex;
            justify-content:center;
            padding:0 20px;
            position:relative;
            z-index:2;
            gap:160px;
        }
        .nav-tab{
            padding:20px 0;
            display:flex;
            align-items:center;
            gap:8px;
            color:#666;
            font-size:16px;
            cursor:pointer;
            position:relative;
            white-space:nowrap;
        }
        .nav-tab.active::after{
            content:'';
            position:absolute;
            left:50%;
            transform:translateX(-50%);
            bottom:0;
            width:60%;
            height:3px;
            background-color:#4080ff;
            border-radius:2px;
        }
        .nav-tab-icon{width:18px;height:18px;display:inline-block;background-size:contain;background-repeat:no-repeat;}
        .icon-ai{background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="2" y1="12" x2="22" y2="12"/><path d="M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z"/></svg>');}
        .icon-star{background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/></svg>');}
        .icon-lamp{background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M12 2C8.13 2 5 5.13 5 9c0 2.38 1.19 4.47 3 5.74V17c0 .55.45 1 1 1h6c.55 0 1-.45 1-1v-2.26c1.81-1.27 3-3.36 3-5.74 0-3.87-3.13-7-7-7z"/><line x1="9" y1="21" x2="15" y2="21"/></svg>');}
        .icon-grid{background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="7" height="7"/><rect x="14" y="3" width="7" height="7"/><rect x="3" y="14" width="7" height="7"/><rect x="14" y="14" width="7" height="7"/></svg>');}
        .icon-case{background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%236b7280" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><rect x="2" y="7" width="20" height="14" rx="2" ry="2"/><path d="M16 21V5a2 2 0 0 0-2-2h-4a2 2 0 0 0-2 2v16"/></svg>');}

        @media screen and (max-width:768px){
            .banner{
                min-height:320px;
                padding:20px;
                align-items:center;
                background-position:top center;
            }
            .banner-title{font-size:32px;margin-top:0;}
            .banner-desc{font-size:14px;}
            .nav-container{display: none !important;}
        }
        html,body {
            height: auto;
        }
        body {
            padding: 0;
            background: #f5f7fa;
        }

        /* ========== 通用模块容器 ========== */
        .geo-module {
            width: 100%;
            padding: 70px 20px;
            position: relative;
        }
        .geo-module-inner {
            max-width: 1200px;
            margin: 0 auto;
        }
        .geo-module-title {
            text-align: center;
            font-size: 32px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
        }
        .geo-module-subtitle {
            text-align: center;
            font-size: 16px;
            color: #666;
            margin-bottom: 50px;
        }

        /* 模块3 - 主要服务行业 */
        #module3 {
            background: #f0fff4 url('../images/sec2-bg.png') center / cover no-repeat;
            position: relative;
        }
        #module3::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(240,255,244,0.8);
            pointer-events: none;
        }
        #module3 .geo-module-inner {
            position: relative;
            z-index: 1;
        }

        /* ========== 案例展示模块 ========== */
        .case-display-section {
            background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
            padding: 80px 20px;
            position: relative;
            overflow: hidden;
        }
        .case-display-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(64,128,255,0.15) 0%, transparent 50%),
                        radial-gradient(ellipse at 80% 50%, rgba(139,92,246,0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        .case-display-header {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            z-index: 1;
        }
        .case-display-title {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .case-display-subtitle {
            font-size: 16px;
            color: rgba(255,255,255,0.6);
        }
        .case-display-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .case-display-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            position: relative;
        }
        .case-display-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }
        .case-platform-header {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 16px 20px;
            background: #f8f9fc;
            border-bottom: 1px solid #eee;
        }
        .case-platform-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .platform-doubao { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
        .platform-wenxin { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
        .platform-yuanbao { background: linear-gradient(135deg, #10b981, #34d399); }
        .platform-deepseek { background: linear-gradient(135deg, #0ea5e9, #38bdf8); }
        
        .case-platform-name {
            font-size: 15px;
            font-weight: 600;
            color: #1a1a1a;
        }
        .case-platform-query {
            font-size: 12px;
            color: #888;
            margin-top: 2px;
        }
        .case-result-area {
            padding: 20px;
            min-height: 200px;
        }
        .case-result-item {
            padding: 12px;
            margin-bottom: 10px;
            border-radius: 8px;
            border: 1px solid #eee;
            transition: all 0.3s;
        }
        .case-result-item.highlight {
            border-color: #ef4444;
            background: rgba(239,68,68,0.05);
            position: relative;
        }
        .case-result-item.highlight::before {
            content: '';
            position: absolute;
            inset: -2px;
            border: 2px dashed #ef4444;
            border-radius: 10px;
            pointer-events: none;
            opacity: 0.5;
        }
        .case-result-item .item-name {
            font-size: 14px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 6px;
        }
        .case-result-item.highlight .item-name {
            color: #dc2626;
        }
        .case-result-item .item-desc {
            font-size: 12px;
            color: #666;
            line-height: 1.6;
        }
        .case-result-item .item-rank {
            display: inline-block;
            width: 20px;
            height: 20px;
            line-height: 20px;
            text-align: center;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 700;
            margin-right: 6px;
            background: #e5e7eb;
            color: #666;
        }
        .case-result-item.highlight .item-rank {
            background: #ef4444;
            color: #fff;
        }
        .case-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: #ef4444;
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            z-index: 2;
        }
        @media (max-width: 1024px) {
            .case-display-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .case-display-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .case-display-title { font-size: 28px; }
        }

        .industry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .industry-card {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            height: 200px;
            background-size: cover;
            background-position: center;
            transition: transform 0.3s, box-shadow 0.3s;
            cursor: pointer;
        }
        .industry-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.15);
        }
        .industry-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.7) 100%);
        }
        .industry-card .card-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            z-index: 1;
        }
        .industry-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .industry-card .card-desc {
            font-size: 13px;
            color: rgba(255,255,255,0.85);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .industry-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .industry-card { height: 160px; }
            .industry-card .card-title { font-size: 16px; }
            .industry-card .card-desc { font-size: 12px; }
        }
        @media (max-width: 480px) {
            .industry-card { height: 140px; }
        }

        /* ========== 支持的主流大模型平台 ========== */
        .platform-section {
            background: #fff url('../images/sec5-bg.png') center / cover no-repeat;
            padding: 70px 0;
            overflow: hidden;
            position: relative;
        }
        .platform-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(255,255,255,0.85);
            pointer-events: none;
            z-index: 0;
        }
        .platform-section .geo-module-inner {
            position: relative;
            z-index: 1;
        }
        .marquee-wrapper {
            position: relative;
            width: 100%;
            overflow: hidden;
            padding: 20px 0;
        }
        /* 左右渐变遮罩 */
        .marquee-wrapper::before,
        .marquee-wrapper::after {
            content: "";
            position: absolute;
            top: 0;
            bottom: 0;
            width: 200px;
            z-index: 2;
            pointer-events: none;
        }
        .marquee-wrapper::before {
            left: 0;
            background: linear-gradient(to right, #fff 0%, rgba(255,255,255,0) 100%);
        }
        .marquee-wrapper::after {
            right: 0;
            background: linear-gradient(to left, #fff 0%, rgba(255,255,255,0) 100%);
        }

        .marquee-row {
            display: flex;
            margin-bottom: 20px;
            width: 100%;
            overflow: hidden;
        }
        .marquee-row:last-child {
            margin-bottom: 0;
        }

        .marquee-track {
            display: flex;
            width: max-content;
            animation: scroll-left 40s linear infinite;
        }
        .marquee-row:nth-child(2) .marquee-track {
            animation: scroll-right 40s linear infinite;
        }

        .marquee-track:hover {
            animation-play-state: paused;
        }

        @keyframes scroll-left {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }
        @keyframes scroll-right {
            0% { transform: translateX(-50%); }
            100% { transform: translateX(0); }
        }

        .platform-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            padding: 20px 30px;
            margin: 0 10px;
            border-radius: 12px;
            transition: transform 0.3s, box-shadow 0.3s;
            cursor: default;
            background: #f8faff;
            border: 1px solid #eef2ff;
            min-width: 140px;
            flex-shrink: 0;
        }
        .platform-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 24px rgba(64,128,255,0.12);
            background: #fff;
            border-color: #4080ff;
        }
        .platform-item img {
            width: 48px;
            height: 48px;
            object-fit: contain;
        }
        .platform-item span {
            font-size: 14px;
            font-weight: 500;
            color: #333;
            white-space: nowrap;
        }
        @media (max-width: 768px) {
            .marquee-wrapper::before,
            .marquee-wrapper::after { width: 60px; }
            .platform-item { min-width: 110px; padding: 15px 20px; }
            .platform-item img { width: 36px; height: 36px; }
        }

        /* ========== GEO趋势模块 ========== */
        .trend-section {
            background: linear-gradient(180deg, #f0f7ff 0%, #e8f0ff 100%);
            padding: 80px 20px;
            position: relative;
        }
        .trend-header {
            text-align: center;
            margin-bottom: 20px;
        }
        .trend-title {
            font-size: 32px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 16px;
        }
        .trend-desc {
            font-size: 16px;
            font-weight: 500;
            color: #666;
            max-width: 900px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .trend-desc .highlight {
            color: #ef4444;
            font-weight: 700;
        }
        .trend-grid {
            max-width: 1200px;
            margin: 50px auto 0;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .trend-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            display: flex;
            flex-direction: column;
            height: 520px;
        }
        .trend-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.12);
        }
        .trend-chat-area {
            padding: 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
            position: relative;
            background: #EDEDED;
            overflow: hidden;
        }
        .trend-chat-bubble {
            display: flex;
            flex-direction: row-reverse;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
        }
        .trend-chat-bubble .wx-bubble {
            background: #95EC69;
            border-radius: 6px;
            border-top-right-radius: 2px;
            padding: 10px 14px;
            max-width: 85%;
            position: relative;
            box-shadow: 0 1px 2px rgba(0,0,0,0.05);
        }
        .trend-chat-bubble .wx-bubble::after {
            content: '';
            position: absolute;
            right: -8px;
            top: 12px;
            width: 0;
            height: 0;
            border-top: 6px solid transparent;
            border-bottom: 6px solid transparent;
            border-left: 8px solid #95EC69;
        }
        .trend-chat-text {
            font-size: 13px;
            line-height: 1.5;
            color: #333;
        }
        .trend-chat-text .red-box,
        .wx-bubble .red-box {
            display: inline-block;
            padding: 1px 5px;
            border-radius: 3px;
            font-weight: 600;
            color: #dc2626;
        }
        .trend-chat-screenshot {
            flex: 1;
            overflow-y: auto;
            padding: 4px 0;
        }
        .trend-chat-screenshot::-webkit-scrollbar {
            width: 3px;
        }
        .trend-chat-screenshot::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 2px;
        }
        .wx-msg {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 14px;
        }
        .wx-msg:last-child {
            margin-bottom: 0;
        }
        .wx-msg.wx-right {
            flex-direction: row-reverse;
        }
        .wx-avatar {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
        }
        .wx-avatar.avatar-a { background: linear-gradient(135deg, #667eea, #764ba2); }
        .wx-avatar.avatar-b { background: linear-gradient(135deg, #f093fb, #f5576c); }
        .wx-avatar.avatar-c { background: linear-gradient(135deg, #4facfe, #00f2fe); }
        .wx-bubble {
            background: #fff;
            border-radius: 6px;
            padding: 10px 14px;
            font-size: 13px;
            line-height: 1.5;
            color: #333;
            position: relative;
            max-width: 75%;
            box-shadow: 0 1px 2px rgba(0,0,0,0.04);
        }
        .wx-msg.wx-left .wx-bubble {
            border-top-left-radius: 2px;
        }
        .wx-msg.wx-left .wx-bubble::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 12px;
            width: 0;
            height: 0;
            border-top: 6px solid transparent;
            border-bottom: 6px solid transparent;
            border-right: 8px solid #fff;
        }
        .wx-msg.wx-right .wx-bubble {
            background: #95EC69;
            border-top-right-radius: 2px;
        }
        .wx-msg.wx-right .wx-bubble::before {
            content: '';
            position: absolute;
            right: -8px;
            top: 12px;
            width: 0;
            height: 0;
            border-top: 6px solid transparent;
            border-bottom: 6px solid transparent;
            border-left: 8px solid #95EC69;
        }
        .wx-bubble .red-box {
            display: inline-block;
            padding: 1px 5px;
            border-radius: 3px;
            font-weight: 600;
            color: #dc2626;
        }
        .trend-card-footer {
            padding: 20px;
            text-align: center;
            background: #fff;
        }
        .trend-card-title {
            font-size: 22px;
            font-weight: 700;
            color: #4080ff;
            margin-bottom: 8px;
        }
        .trend-card-subtitle {
            font-size: 14px;
            color: #666;
            margin-bottom: 16px;
        }
        .trend-industry-btn {
            display: inline-block;
            background: linear-gradient(135deg, #4080ff 0%, #2563eb 100%);
            color: #fff;
            padding: 10px 28px;
            border-radius: 24px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 1px;
        }
        @media (max-width: 1024px) {
            .trend-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .trend-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .trend-title { font-size: 28px; }
            .trend-desc { font-size: 16px; }
        }
        @media (max-width: 480px) {
            .trend-grid { grid-template-columns: 1fr; }
        }

        /* ========== 产品优势模块 ========== */
        .advantage-section {
            background: #f0f7ff url('../images/sec4-bg.png') center / cover no-repeat;
            padding: 80px 20px;
            position: relative;
            overflow: hidden;
        }
        .advantage-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(240,247,255,0.85);
            pointer-events: none;
            z-index: 0;
        }
        .advantage-section::after {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139,92,246,0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .advantage-header {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            z-index: 1;
        }
        .advantage-title {
            font-size: 36px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .advantage-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, #4080ff, #8b5cf6);
            border-radius: 2px;
        }
        .advantage-subtitle {
            font-size: 16px;
            color: #666;
            margin-top: 20px;
        }
        .advantage-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .advantage-card {
            background: #fff;
            border-radius: 20px;
            padding: 36px 28px;
            text-align: center;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid rgba(0,0,0,0.04);
            position: relative;
            overflow: hidden;
        }
        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--card-color1, #4080ff), var(--card-color2, #60a5fa));
            opacity: 0;
            transition: opacity 0.3s;
        }
        .advantage-card:hover::before {
            opacity: 1;
        }
        .advantage-card::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(64,128,255,0.03) 0%, transparent 50%);
            opacity: 0;
            transition: opacity 0.4s;
            pointer-events: none;
        }
        .advantage-card:hover::after {
            opacity: 1;
        }
        .advantage-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(64,128,255,0.12), 0 8px 16px rgba(0,0,0,0.04);
            border-color: rgba(64,128,255,0.15);
        }
        .advantage-card:nth-child(1) { --card-color1: #4080ff; --card-color2: #60a5fa; }
        .advantage-card:nth-child(2) { --card-color1: #8b5cf6; --card-color2: #a78bfa; }
        .advantage-card:nth-child(3) { --card-color1: #22c55e; --card-color2: #4ade80; }
        .advantage-card:nth-child(4) { --card-color1: #f59e0b; --card-color2: #fbbf24; }
        .advantage-card:nth-child(5) { --card-color1: #ef4444; --card-color2: #f87171; }
        .advantage-card:nth-child(6) { --card-color1: #06b6d4; --card-color2: #22d3ee; }
        
        .advantage-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--card-color1, #4080ff) 0%, var(--card-color2, #60a5fa) 100%);
            border-radius: 20px;
            position: relative;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .advantage-card:hover .advantage-icon {
            transform: scale(1.1) rotate(-5deg);
            box-shadow: 0 8px 24px rgba(64,128,255,0.25);
        }
        .advantage-icon::before {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 24px;
            background: linear-gradient(135deg, var(--card-color1, #4080ff), var(--card-color2, #60a5fa));
            opacity: 0.15;
            z-index: -1;
        }
        .advantage-icon svg {
            width: 36px;
            height: 36px;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
        }
        .advantage-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
            transition: color 0.3s;
        }
        .advantage-card:hover h3 {
            color: var(--card-color1, #4080ff);
        }
        .advantage-card p {
            font-size: 14px;
            color: #666;
            line-height: 1.8;
            text-align: left;
        }
        .advantage-card .card-number {
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 48px;
            font-weight: 800;
            color: rgba(64,128,255,0.06);
            line-height: 1;
            pointer-events: none;
        }
        @media (max-width: 768px) {
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .advantage-title { font-size: 28px; }
            .advantage-card { padding: 28px 20px; }
            .advantage-icon { width: 60px; height: 60px; }
            .advantage-icon svg { width: 30px; height: 30px; }
        }
        @media (max-width: 480px) {
            .advantage-grid { grid-template-columns: 1fr; }
        }

        /* ========== 传统SEO与GEO对比模块 ========== */
        .comparison-section {
            background: #f8f9fc url('../images/sec3-bg.png') center / cover no-repeat;
            padding: 80px 20px;
            position: relative;
        }
        .comparison-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(248,249,252,0.8);
            pointer-events: none;
        }
        .comparison-header {
            position: relative;
            z-index: 1;
        }
        .comparison-wrapper {
            position: relative;
            z-index: 1;
        }
        .comparison-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .comparison-title {
            font-size: 36px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 16px;
        }
        .comparison-subtitle {
            font-size: 16px;
            color: #4080ff;
            font-weight: 500;
        }
        .comparison-wrapper {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 30px;
            position: relative;
            align-items: stretch;
        }
        .comparison-side {
            flex: 1;
            border-radius: 20px;
            padding: 40px 30px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .side-traditional {
            background: linear-gradient(135deg, #eef6ff 0%, #dbeafe 100%);
        }
        .side-geo {
            background: linear-gradient(135deg, #fff1f0 0%, #ffe4e6 100%);
        }
        .side-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 10px;
        }
        .side-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .side-title {
            font-size: 24px;
            font-weight: 700;
        }
        .side-traditional .side-title { color: #1e40af; }
        .side-geo .side-title { color: #be123c; }
        
        .comparison-card {
            background: #fff;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.04);
        }
        .card-label {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #333;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .card-label::before {
            content: '';
            width: 4px;
            height: 16px;
            border-radius: 2px;
        }
        .side-traditional .card-label::before { background: #3b82f6; }
        .side-geo .card-label::before { background: #f43f5e; }
        
        .card-text {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
            text-align: justify;
        }

        .vs-badge {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            z-index: 2;
            background: #fff;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            color: #4080ff;
            box-shadow: 0 8px 24px rgba(0,0,0,0.1);
            border: 4px solid #f8f9fc;
        }

        @media (max-width: 768px) {
            .comparison-wrapper {
                flex-direction: column;
            }
            .vs-badge {
                display: none;
            }
            .comparison-side {
                padding: 30px 20px;
            }
        }

        /* ========== 服务流程模块 ========== */
        .process-section {
            background: url('../images/sec4-bg.png') center / cover no-repeat;
            padding: 80px 20px;
            position: relative;
        }
        .process-header {
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            z-index: 1;
        }
        .process-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .process-title {
            font-size: 36px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
        }
        .process-subtitle {
            font-size: 16px;
            color: #666;
        }
        .process-card {
            background: #fff;
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid rgba(64,128,255,0.08);
            position: relative;
            overflow: hidden;
        }
        .process-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(64,128,255,0.12);
        }
        .process-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, #4080ff 0%, #60a5fa 100%);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .process-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 12px;
        }
        .process-card p {
            font-size: 13px;
            color: #666;
            line-height: 1.7;
            text-align: left;
        }
        .process-card .card-illustration {
            margin-top: 20px;
            padding: 16px;
            background: #f8faff;
            border-radius: 12px;
            min-height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .process-card .card-illustration svg {
            width: 100%;
            max-width: 160px;
            height: auto;
        }
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .process-title { font-size: 28px; }
            .process-card { padding: 20px 12px; }
            .process-step { width: 30px; height: 30px; font-size: 14px; }
            .process-card h3 { font-size: 15px; }
            .process-card p { font-size: 12px; }
            .process-card .card-illustration { display: none; }
        }
        @media (max-width: 480px) {
            .process-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
            .process-card { padding: 16px 8px; }
            .process-step { width: 26px; height: 26px; font-size: 12px; }
            .process-card h3 { font-size: 13px; }
            .process-card p { font-size: 11px; }
        }

        /* ========== 为什么要做 AI GEO 模块 ========== */
        .why-geo-section {
            background: #f8f9fa;
            padding: 80px 20px;
            position: relative;
        }
        .why-geo-header {
            max-width: 1200px;
            margin: 0 auto 50px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .why-geo-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .why-geo-title {
            font-size: 36px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
        }
        .why-geo-title .highlight {
            color: #4080ff;
        }
        .why-geo-subtitle {
            font-size: 16px;
            color: #4080ff;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .why-geo-desc {
            font-size: 15px;
            color: #666;
            line-height: 1.6;
        }
        .why-geo-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .why-geo-card {
            background: linear-gradient(135deg, #f0f7ff 0%, #e8f4ff 100%);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid rgba(64,128,255,0.08);
        }
        .why-geo-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(64,128,255,0.12);
        }
        .why-geo-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .why-geo-icon svg {
            width: 100%;
            height: 100%;
        }
        .why-geo-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 8px;
        }
        .why-geo-card .card-sub {
            font-size: 14px;
            color: #4080ff;
            font-weight: 500;
            margin-bottom: 0;
            line-height: 1.8;
        }
        .why-geo-card .card-desc {
            font-size: 13px;
            color: #888;
            line-height: 1.6;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .why-geo-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .why-geo-title { font-size: 28px; }
            .why-geo-card { padding: 24px 16px; }
            .why-geo-icon { width: 60px; height: 60px; }
        }