/* AI旺店家官网 - 明亮清爽 SaaS 风 + 蓝靛紫品牌色 */
:root{
    --brand-1:#00BBA7;
    --brand-2:#00C9A7;
    --brand-3:#008E7A;
    --grad:linear-gradient(135deg,#00A88F 0%,#00C9A7 100%);
    --grad-soft:linear-gradient(135deg,rgba(0,187,167,.12),rgba(0,201,167,.12));
    --ink:#0f172a;
    --muted:#64748b;
    --line:#e6e8f0;
    --bg:#ffffff;
    --bg-alt:#f1fbf9;
    --radius:16px;
    --shadow:0 1px 3px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);
    --shadow-lg:0 12px 40px rgba(0,187,167,.14);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden;overflow-x:clip}
body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px;
    -webkit-font-smoothing:antialiased;overflow-x:hidden;overflow-x:clip;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:760px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:15px;
    padding:11px 22px;border-radius:10px;cursor:pointer;transition:all .2s;border:none;white-space:nowrap}
.btn-lg{padding:14px 30px;font-size:16px;border-radius:12px}
.btn-block{width:100%}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(0,187,167,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,187,167,.42)}
.btn-outline{background:transparent;color:var(--brand-3);border:1.5px solid var(--line)}
.btn-outline:hover{border-color:var(--brand-1);color:var(--brand-1)}
.btn-ghost{background:transparent;color:var(--ink);padding:9px 16px}
.btn-ghost:hover{color:var(--brand-1)}
.btn-light{background:#fff;color:var(--brand-3)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.18)}

/* ---------- 顶栏 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;height:64px;gap:32px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;
    background:var(--grad);color:#fff;font-size:13px;font-weight:800;letter-spacing:.5px;box-shadow:0 4px 12px rgba(0,187,167,.4)}
.logo-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-img{height:36px;width:auto;max-width:170px;object-fit:contain;border-radius:9px}
.footer-logo-img{height:30px}
.nav-links{display:flex;gap:28px;margin-right:auto;font-weight:500;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--brand-1)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;margin-left:auto}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 72px;text-align:center}
.hero-glow{position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:900px;max-width:100%;height:560px;
    background:radial-gradient(closest-side,rgba(0,187,167,.20),rgba(0,201,167,.10),transparent 70%);z-index:-1;pointer-events:none}
.hero-badge{display:inline-block;padding:7px 16px;border-radius:999px;background:var(--grad-soft);
    color:var(--brand-3);font-size:14px;font-weight:600;margin-bottom:24px;border:1px solid rgba(0,187,167,.18)}
.hero-title{font-size:clamp(36px,5.4vw,60px);line-height:1.12;font-weight:800;letter-spacing:-1px;
    background:linear-gradient(120deg,#003D33 0%,#008E7A 50%,#00C9A7 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:14px;font-size:17px;color:var(--brand-2);font-weight:600;letter-spacing:.5px}
.hero-desc{max-width:680px;margin:18px auto 0;color:var(--muted);font-size:18px}
.hero-actions{display:flex;gap:14px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.hero-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:60px;text-align:left}
.hero-card{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
    border-radius:14px;padding:18px;box-shadow:var(--shadow);transition:transform .2s}
.hero-card:hover{transform:translateY(-3px)}
.hero-card-icon{flex:none;width:44px;height:44px;border-radius:11px;background:var(--grad-soft);color:var(--brand-1);
    display:flex;align-items:center;justify-content:center}
.hero-card-icon svg{width:24px;height:24px}
.hero-card h4{font-size:15px;margin-bottom:3px}
.hero-card p{font-size:13px;color:var(--muted);line-height:1.45}

/* ---------- 通用 section ---------- */
.section{padding:84px 0}
.section-alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:720px;margin:0 auto 52px}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
    color:var(--brand-1);margin-bottom:12px}
.section-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:-.5px}
.section-sub{margin-top:16px;color:var(--muted);font-size:17px}
.footnote{max-width:820px;margin:28px auto 0;text-align:center;font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 双闭环 ---------- */
.loop-grid{display:flex;align-items:stretch;justify-content:center;gap:24px;flex-wrap:wrap}
.loop-card{flex:1;min-width:300px;max-width:440px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.loop-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad)}
.loop-passive::before{background:linear-gradient(90deg,#00BBA7,#7ee8d8)}
.loop-active::before{background:linear-gradient(90deg,#00C9A7,#7ee8d8)}
.loop-step{font-size:13px;font-weight:800;color:var(--brand-2);letter-spacing:1px}
.loop-card h3{font-size:21px;margin:10px 0 12px}
.loop-card p{color:var(--muted)}
.loop-plus{display:flex;align-items:center;font-size:34px;font-weight:300;color:var(--brand-2)}

/* ---------- 功能网格 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
    box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(0,187,167,.25)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:var(--grad);color:#fff;
    display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 6px 16px rgba(0,187,167,.3)}
.feature-icon svg{width:25px;height:25px}
.feature-card h3{font-size:17px;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.6}
a.feature-card{display:block}
/* 行业页痛点卡片 */
.pain-grid{grid-template-columns:repeat(3,1fr)}
.pain-card{border-color:rgba(255,107,107,.25);background:#fff8f8}
.pain-card .feature-icon{background:linear-gradient(135deg,#ff6b6b,#ee5a52);box-shadow:0 6px 16px rgba(255,107,107,.3)}
.pain-card:hover{border-color:rgba(255,107,107,.4)}
@media(max-width:900px){.pain-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.pain-grid{grid-template-columns:1fr}}
/* 功能页使用流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);text-align:center}
.step-num{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;font-weight:700;font-size:16px;
    display:flex;align-items:center;justify-content:center;margin:0 auto 14px;box-shadow:0 6px 16px rgba(0,187,167,.3)}
.step-card h3{font-size:16px;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.6}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.steps{grid-template-columns:1fr}}
/* GEO 实效 */
.geo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px}
.geo-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 16px;text-align:center;box-shadow:var(--shadow)}
.geo-platform{font-size:14px;color:var(--muted);margin-bottom:8px}
.geo-rate{font-size:36px;font-weight:800;color:var(--brand-1);line-height:1.1}
.geo-rate-pending{font-size:24px;font-weight:700;color:#999;line-height:1.5}
/* 分类筛选 + 分页 */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:28px}
.cat-pill{display:inline-block;padding:6px 16px;border-radius:20px;background:#f0f4f5;color:#666;font-size:13px;text-decoration:none;transition:all .2s}
.cat-pill:hover{background:#e0ecec;color:#333}
.cat-pill.active{background:var(--grad);color:#fff}
.pagination{margin:40px 0;display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap}
.page-link{display:inline-block;padding:8px 20px;border-radius:6px;background:var(--brand-1);color:#fff;text-decoration:none;font-size:14px}
.page-link:hover{opacity:.9}
.page-info{color:#999;font-size:14px}
.geo-label{font-size:12px;color:#999;margin-top:8px}
.geo-ranking{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:24px}
.geo-rank-pill{background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 16px;font-size:13px;color:#555}
.geo-rank-pill b{color:var(--brand-1)}

/* ---------- 为什么 ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why-card{text-align:center;padding:30px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.why-icon{width:52px;height:52px;border-radius:14px;background:var(--grad-soft);color:var(--brand-1);
    display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.why-icon svg{width:27px;height:27px}
.why-card h3{font-size:18px;margin-bottom:8px}
.why-card p{font-size:14px;color:var(--muted)}

/* ---------- 定价 ---------- */
.pricing-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:48px 44px;box-shadow:var(--shadow-lg);
    text-align:center;position:relative;overflow:hidden}
.pricing-card::before{content:"";position:absolute;top:-80px;right:-80px;width:240px;height:240px;
    background:var(--grad-soft);border-radius:50%}
.pricing-badge{position:relative;display:inline-block;background:var(--grad);color:#fff;font-weight:700;
    padding:7px 18px;border-radius:999px;font-size:14px;margin-bottom:22px}
.pricing-price{display:flex;align-items:flex-end;justify-content:center;gap:8px;position:relative}
.price-num{font-size:60px;font-weight:800;line-height:1;letter-spacing:-2px;
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.price-period{font-size:16px;color:var(--muted);padding-bottom:8px}
.pricing-desc{margin:16px auto 28px;color:var(--muted);max-width:440px}
.pricing-list{list-style:none;text-align:left;max-width:440px;margin:0 auto 32px;display:grid;gap:13px}
.pricing-list li{display:flex;align-items:flex-start;gap:11px;font-size:15px}
.pricing-list .check{flex:none;width:22px;height:22px;border-radius:50%;background:var(--grad-soft);color:var(--brand-1);
    display:flex;align-items:center;justify-content:center;margin-top:1px}
.pricing-list .check svg{width:14px;height:14px}

/* ---------- CTA Banner ---------- */
.cta-banner{background:var(--grad);padding:64px 0;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-inner{position:relative}
.cta-banner h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:10px}
.cta-banner p{opacity:.92;margin-bottom:26px;font-size:17px}

/* ---------- Footer ---------- */
.footer{background:#0f172a;color:#cbd5e1;padding:48px 0 36px}
.footer-inner{text-align:center}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;margin-bottom:12px;color:#fff}
.footer-desc{color:#94a3b8;font-size:14px;margin-bottom:18px}
.footer-meta{font-size:13px;color:#64748b;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.footer-link{color:#94a3b8;transition:color .2s}
.footer-link:hover{color:#7ee8d8}

/* ---------- 悬浮客服（微信扫码添加） ---------- */
.kefu{position:fixed;right:22px;bottom:22px;z-index:60;-webkit-transform:translateZ(0);transform:translateZ(0)}
.kefu-fab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;width:62px;height:62px;border:none;border-radius:50%;
    background:#00C9A7;background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(0,187,167,.42);cursor:pointer;transition:transform .2s,box-shadow .2s}
.kefu-fab:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,187,167,.52)}
.kefu-fab-icon{display:flex;align-items:center;justify-content:center}
.kefu-fab-icon svg{width:26px;height:26px}
.kefu-fab-text{font-size:11px;font-weight:700;line-height:1;letter-spacing:.5px}
.kefu-pop{position:absolute;right:0;bottom:74px;width:236px;background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);
    padding:18px 18px 16px;opacity:0;visibility:hidden;transform:translateY(8px) scale(.96);transform-origin:bottom right;
    transition:opacity .2s,transform .2s,visibility .2s}
.kefu.kefu--open .kefu-pop{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.kefu-pop-inner{text-align:center}
.kefu-pop-inner h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:10px}
.kefu-qr{width:174px;height:174px;object-fit:contain;border-radius:10px;border:1px solid var(--line);margin:0 auto;display:block;background:#fff}
.kefu-pop-desc{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.5}
.kefu-pop-hint{font-size:12px;color:var(--brand-3);margin-top:6px;font-weight:600}
/* 桌面 hover 展开（触屏设备走点击，避免 hover 卡死） */
@media(hover:hover) and (pointer:fine){
    .kefu:hover .kefu-pop{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
}

/* ---------- 响应式 ---------- */
@media(max-width:980px){
    .nav-links{display:none}
    .nav--open .nav-links{display:flex;position:absolute;top:64px;left:0;right:0;background:#fff;
        flex-direction:column;padding:18px 24px;border-bottom:1px solid var(--line);gap:16px}
    .nav-cta .btn-ghost{display:none}
    .nav-toggle{display:flex}
    .hero-cards,.feature-grid,.why-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
    .section{padding:60px 0}
    .hero{padding:60px 0 50px}
    .hero-cards,.feature-grid,.why-grid{grid-template-columns:1fr}
    .loop-plus{transform:rotate(90deg)}
    .pricing-card{padding:36px 22px}
    .nav-cta .btn-primary{padding:9px 16px;font-size:14px}
    .hero-actions .btn{width:100%}
    .logo{font-size:16px;gap:8px}
    .logo-img{height:30px}
    .logo-mark{width:30px;height:30px}
    .kefu{right:16px;bottom:16px}
    .kefu-fab{width:54px;height:54px}
    .kefu-fab-icon svg{width:23px;height:23px}
    .kefu-pop{width:216px;bottom:66px;padding:16px 16px 14px}
    .kefu-qr{width:156px;height:156px}
}
/* PC（宽屏）首屏：加淡淡全幅色彩底，手机端保持不变 */
@media(min-width:768px){
    .hero{background:radial-gradient(120% 95% at 50% 0%, #e6f9f4 0%, #f1fcfa 38%, #ffffff 74%)}
    .hero-glow{width:1280px;height:640px}
}