:root {
    --primary: #6d14ff;
    --primary-light: #b266ff;
    --primary-dark: #3e0e7b;
    --gradient: linear-gradient(135deg, #6d14ff 0%, #b266ff 100%);
    --gradient-bg: linear-gradient(135deg, #f5f0ff 0%, #e8f4ff 100%);
    --text-1: #1a1a2e;
    --text-2: #555;
    --text-3: #888;
    --text-white: #fff;
    --bg-white: #fff;
    --bg-light: #f8f9fc;
    --bg-gray: #f3f4f8;
    --shadow: 0 4px 20px rgba(0,0,0,.06);
    --shadow-hover: 0 8px 30px rgba(109,20,255,.12);
    --radius: 12px;
    --radius-sm: 8px;
}
body { background: #fff; color: var(--text-1); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
.w1300 { width: 1300px; margin: 0 auto; }
img { max-width: 100%; }

/* ===== Hero Banner ===== */
.hero-banner { position: relative; width: 100%; min-height: 600px; background: var(--gradient-bg); overflow: hidden; display: flex; align-items: center; }
.hero-banner::before { content: ''; position: absolute; top: -200px; right: -200px; width: 600px; height: 600px; border-radius: 50%; background: rgba(109,20,255,.06); }
.hero-banner::after { content: ''; position: absolute; bottom: -150px; left: -150px; width: 400px; height: 400px; border-radius: 50%; background: rgba(64,121,235,.06); }
.hero-inner { width: 1300px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 80px 0 60px; position: relative; z-index: 1; }
.hero-left { flex: 1; max-width: 650px; }
.hero-title { font-size: 42px; font-weight: 700; line-height: 1.3; margin-bottom: 20px; color: var(--text-1); }
.hero-title .hl { color: var(--primary); }
.hero-subtitle { font-size: 18px; color: var(--text-2); line-height: 1.8; margin-bottom: 36px; }
.hero-cta { display: inline-block; padding: 14px 40px; background: var(--gradient); color: #fff; font-size: 16px; border-radius: 50px; text-decoration: none; font-weight: 600; transition: all .3s; box-shadow: 0 4px 15px rgba(109,20,255,.3); }
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(109,20,255,.4); color: #fff; }
.hero-right { flex-shrink: 0; width: 480px; }
.hero-right img { width: 100%; border-radius: var(--radius); }
.hero-platforms { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-platforms .pf-item { display: flex; align-items: center; gap: 6px; padding: 6px 14px; background: rgba(255,255,255,.8); border-radius: 20px; font-size: 13px; color: var(--text-2); border: 1px solid rgba(109,20,255,.1); }
.hero-platforms .pf-item img { width: 22px; height: 22px; border-radius: 50%; }

/* ===== Section Common ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-light); }
.section-title { text-align: center; font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.section-title .hl { color: var(--primary); }
.section-subtitle { text-align: center; font-size: 16px; color: var(--text-3); margin-bottom: 50px; max-width: 700px; margin-left: auto; margin-right: auto; line-height: 1.6; }

/* ===== 为什么做GEO ===== */
.why-geo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.why-geo-card { background: var(--bg-white); border-radius: var(--radius); padding: 40px 30px; box-shadow: var(--shadow); transition: all .3s; border: 1px solid transparent; }
.why-geo-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(109,20,255,.15); }
.why-geo-card .card-icon { width: 64px; height: 64px; margin-bottom: 20px; }
.why-geo-card .card-icon img { width: 100%; }
.why-geo-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 14px; color: var(--text-1); }
.why-geo-card p { font-size: 14px; color: var(--text-2); line-height: 1.8; margin: 0; }

/* ===== SEO vs GEO 对比 ===== */
.vs-section { display: flex; align-items: stretch; gap: 0; }
.vs-col { flex: 1; padding: 40px 35px; border-radius: var(--radius); }
.vs-col-seo { background: #f9f9fb; }
.vs-col-geo { background: linear-gradient(135deg, #f5f0ff 0%, #eee8ff 100%); }
.vs-badge { display: inline-block; padding: 8px 24px; border-radius: 50px; font-size: 18px; font-weight: 700; margin-bottom: 30px; }
.vs-col-seo .vs-badge { background: #eee; color: #666; }
.vs-col-geo .vs-badge { background: var(--gradient); color: #fff; }
.vs-item { margin-bottom: 28px; }
.vs-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 10px; color: var(--text-1); }
.vs-item p { font-size: 14px; color: var(--text-2); line-height: 1.8; margin: 0; }
.vs-divider { display: flex; align-items: center; justify-content: center; padding: 0 20px; }
.vs-divider span { width: 64px; height: 64px; border-radius: 50%; background: var(--gradient); color: #fff; font-size: 22px; font-weight: 800; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 15px rgba(109,20,255,.3); }

/* ===== AI推荐演示 ===== */
.ai-demo { text-align: center; }
.ai-demo-img { max-width: 900px; margin: 0 auto; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.ai-demo-img img { width: 100%; display: block; }

/* ===== 为什么选择我们 ===== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card { background: var(--bg-white); border-radius: var(--radius); padding: 35px 25px; text-align: center; box-shadow: var(--shadow); transition: all .3s; border: 1px solid transparent; }
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(109,20,255,.15); }
.adv-card .adv-icon { width: 56px; height: 56px; margin: 0 auto 18px; }
.adv-card .adv-icon img { width: 100%; }
.adv-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.adv-card p { font-size: 13px; color: var(--text-2); line-height: 1.8; margin: 0 0 16px; }
.adv-card .adv-stat { font-size: 13px; color: var(--primary); font-weight: 600; }
.adv-card .adv-stat b { font-size: 22px; }
.adv-card .adv-btn { display: inline-block; margin-top: 14px; padding: 8px 28px; border: 1px solid var(--primary); color: var(--primary); border-radius: 50px; font-size: 13px; text-decoration: none; transition: all .3s; }
.adv-card .adv-btn:hover { background: var(--primary); color: #fff; }

/* ===== 案例 ===== */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--bg-white); transition: all .3s; }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.case-card .case-img { width: 100%; height: 200px; object-fit: cover; display: block; }
.case-card .case-info { padding: 16px 20px; }
.case-card .case-info h4 { font-size: 15px; font-weight: 600; margin-bottom: 8px; color: var(--text-1); }
.case-card .case-info a { font-size: 13px; color: var(--primary); text-decoration: none; }
.case-card .case-info a:hover { text-decoration: underline; }
.case-cta { text-align: center; margin-top: 40px; }
.case-cta a { display: inline-block; padding: 12px 48px; background: var(--gradient); color: #fff; border-radius: 50px; font-size: 16px; font-weight: 600; text-decoration: none; box-shadow: 0 4px 15px rgba(109,20,255,.3); transition: all .3s; }
.case-cta a:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(109,20,255,.4); color: #fff; }

/* ===== 合作流程 ===== */
.flow-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; position: relative; }
.flow-step { text-align: center; position: relative; }
.flow-num { width: 48px; height: 48px; border-radius: 50%; background: var(--gradient); color: #fff; font-size: 20px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; box-shadow: 0 4px 12px rgba(109,20,255,.25); }
.flow-step h4 { font-size: 14px; font-weight: 600; margin-bottom: 10px; color: var(--text-1); }
.flow-step p { font-size: 12px; color: var(--text-3); line-height: 1.7; padding: 0 5px; }

/* ===== 关于我们 ===== */
.about-inner { display: flex; align-items: center; gap: 60px; }
.about-img { flex-shrink: 0; width: 440px; border-radius: var(--radius); overflow: hidden; }
.about-img img { width: 100%; display: block; }
.about-text { flex: 1; }
.about-text h3 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.about-text p { font-size: 15px; color: var(--text-2); line-height: 1.9; margin-bottom: 20px; }
.about-stats { display: flex; gap: 40px; margin-top: 24px; }
.about-stat { text-align: center; }
.about-stat .stat-num { font-size: 30px; font-weight: 700; color: var(--primary); }
.about-stat .stat-label { font-size: 13px; color: var(--text-3); margin-top: 6px; }

/* ===== 资讯 ===== */
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.news-col h3 { font-size: 20px; font-weight: 600; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); display: inline-block; }
.news-item { display: flex; justify-content: space-between; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid #f0f0f0; }
.news-item:last-child { border-bottom: none; }
.news-item .news-title { flex: 1; font-size: 14px; color: var(--text-1); text-decoration: none; line-height: 1.6; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 16px; }
.news-item .news-title:hover { color: var(--primary); }
.news-item .news-date { font-size: 12px; color: var(--text-3); flex-shrink: 0; }
.news-more { text-align: center; margin-top: 36px; }
.news-more a { display: inline-block; padding: 10px 40px; border: 1px solid var(--primary); color: var(--primary); border-radius: 50px; font-size: 14px; text-decoration: none; transition: all .3s; }
.news-more a:hover { background: var(--primary); color: #fff; }

/* ===== 底部CTA ===== */
.bottom-cta { background: var(--gradient); padding: 60px 0; text-align: center; color: #fff; }
.bottom-cta h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.bottom-cta p { font-size: 16px; opacity: .85; margin-bottom: 30px; }
.bottom-cta a { display: inline-block; padding: 14px 48px; background: #fff; color: var(--primary); border-radius: 50px; font-size: 16px; font-weight: 600; text-decoration: none; transition: all .3s; }
.bottom-cta a:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,.15); color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 1360px) {
    .w1300 { width: 96%; }
    .hero-inner { width: 96%; }
}
@media (max-width: 992px) {
    .hero-inner { flex-direction: column; text-align: center; }
    .hero-right { width: 100%; max-width: 400px; margin-top: 30px; }
    .why-geo-grid { grid-template-columns: 1fr; }
    .vs-section { flex-direction: column; }
    .adv-grid { grid-template-columns: repeat(2, 1fr); }
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .flow-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .about-inner { flex-direction: column; }
    .about-img { width: 100%; }
    .news-grid { grid-template-columns: 1fr; }
}
@media (max-width: 576px) {
    .hero-title { font-size: 28px; }
    .section-title { font-size: 24px; }
    .adv-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .flow-grid { grid-template-columns: repeat(2, 1fr); }
}