/* ============================================================
   AI OPC 共创云伙伴计划 · H5 移动端 APP 样式
   设计：深蓝科技渐变头部 + 白色卡片流 + 底部 Tab 导航
   ============================================================ */
:root{
  --bg:#f2f6fc;
  --surface:#ffffff;
  --ink:#0b1b3a;
  --ink-2:#46587a;
  --ink-3:#8ba0c0;
  --line:#e6eefb;
  --primary:#1a6bff;
  --primary-2:#0ea5e9;
  --primary-4:#4f46e5;
  --grad:linear-gradient(135deg,#0b2a6b 0%,#1a6bff 55%,#4f46e5 100%);
  --grad-lite:linear-gradient(135deg,#38bdf8 0%,#1a6bff 100%);
  --green:#10b981;
  --gold:#f5a623;
  --red:#ef4444;
  --radius:18px;
  --shadow:0 10px 30px rgba(26,107,255,.10);
  --shadow-lg:0 18px 44px rgba(26,107,255,.16);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  padding-bottom:calc(64px + env(safe-area-inset-bottom));
  overflow-x:hidden;
}

/* ---------- 视图切换 ---------- */
.view{display:none;}
.view.active{display:block;animation:viewIn .32s ease both;}
@keyframes viewIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}

/* ---------- 通用 ---------- */
.body{padding:0 16px 28px;max-width:560px;margin:0 auto;}
.block{margin:22px 0 0;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 18px;border:1px solid var(--line);}
.block-head h2{font-size:19px;font-weight:800;letter-spacing:.2px;}
.block-head p{font-size:12.5px;color:var(--ink-2);margin-top:2px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:999px;font-weight:700;font-size:14.5px;
  text-decoration:none;border:1.5px solid transparent;transition:.2s;
}
.btn:active{transform:scale(.96);}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(26,107,255,.35);}
.btn-ghost{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.45);color:#fff;backdrop-filter:blur(6px);}
.btn-block{width:100%;}

/* ---------- 首页头部 ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--grad);
  color:#fff;
  padding:calc(20px + env(safe-area-inset-top)) 20px 34px;
}
.hero::before{
  content:"";position:absolute;top:-70px;right:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.5),transparent 65%);
}
.hero::after{
  content:"";position:absolute;bottom:-110px;left:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(99,102,241,.5),transparent 65%);
}
.hero>*{position:relative;z-index:1;}
.hero-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-logo{
  width:38px;height:38px;border-radius:11px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;letter-spacing:.5px;
  backdrop-filter:blur(6px);
}
.brand-logo.sm{width:26px;height:26px;border-radius:8px;font-size:10px;}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.4px;}
.hero-tag{
  font-size:11px;font-weight:600;letter-spacing:1px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);
  padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.hero-title{font-size:30px;font-weight:800;line-height:1.35;letter-spacing:.5px;}
.hero-title span{background:linear-gradient(120deg,#7dd3fc,#e0e7ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:13.5px;color:rgba(255,255,255,.85);margin-top:12px;max-width:320px;line-height:1.75;}
.hero-kpi{display:flex;gap:10px;margin-top:26px;}
.kpi{
  flex:1;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:16px;padding:12px 6px;text-align:center;backdrop-filter:blur(6px);
}
.kpi b{display:block;font-size:22px;font-weight:800;line-height:1.3;font-variant-numeric:tabular-nums;}
.kpi span{font-size:10.5px;color:rgba(255,255,255,.8);}
.hero-actions{display:flex;gap:12px;margin-top:26px;}
.hero-actions .btn{flex:1;}

/* ---------- 信任点 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px;max-width:560px;margin:-16px auto 0;position:relative;z-index:2;}
.chips span{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:999px;padding:7px 12px;font-size:12px;color:var(--ink-2);
  box-shadow:0 6px 18px rgba(26,107,255,.08);
}
.chips i{color:var(--primary);font-size:12px;}

/* ---------- 合作方式 ---------- */
.mode-card{border-radius:16px;padding:18px;margin-top:14px;border:1px solid var(--line);position:relative;overflow:hidden;}
.mode-card:first-child{margin-top:16px;}
.mode-buy{background:linear-gradient(135deg,#f0f6ff,#eef1ff);border-color:#dbe7ff;}
.mode-nobuy{background:linear-gradient(135deg,#f0fdf6,#effcfb);border-color:#d5f5e6;}
.mode-head{display:flex;align-items:center;gap:12px;}
.mode-icon{
  width:44px;height:44px;border-radius:14px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;font-size:19px;
}
.mode-buy .mode-icon{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(26,107,255,.35);}
.mode-nobuy .mode-icon{background:linear-gradient(135deg,#10b981,#0ea5e9);color:#fff;box-shadow:0 8px 20px rgba(16,185,129,.3);}
.mode-head h3{font-size:17px;font-weight:800;}
.mode-head p{font-size:12px;color:var(--ink-2);}
.mode-flag{margin-left:auto;font-size:10.5px;font-weight:700;background:var(--grad);color:#fff;padding:4px 10px;border-radius:999px;}
.mode-flag.flag-green{background:linear-gradient(135deg,#10b981,#0ea5e9);}
.mode-price{display:flex;align-items:baseline;gap:6px;margin:14px 0 10px;}
.mode-price b{font-size:34px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1;}
.mode-price small{font-size:18px;}
.mode-price span{font-size:12.5px;color:var(--ink-2);}
.mode-list{list-style:none;}
.mode-list li{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--ink-2);padding:4px 0;}
.mode-list li i{color:var(--green);margin-top:4px;font-size:11px;}
.mode-list li b{color:var(--ink);}

/* ---------- 四大权益 ---------- */
.benefit-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px;}
.benefit{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:14px 12px;}
.benefit-ico{
  width:36px;height:36px;border-radius:11px;background:var(--grad-soft,linear-gradient(135deg,#eaf3ff,#eef1ff));
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:15px;margin-bottom:10px;
}
.benefit h4{font-size:14px;font-weight:700;margin-bottom:4px;}
.benefit p{font-size:11.5px;color:var(--ink-2);line-height:1.6;}

/* ---------- 行业模板 ---------- */
.tpl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px;}
.tpl-grid span{
  display:flex;flex-direction:column;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line);border-radius:14px;
  padding:14px 6px;font-size:12px;color:var(--ink-2);
}
.tpl-grid i{font-size:20px;color:var(--primary);}

/* ---------- 伙伴评价 ---------- */
.testi-card{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:16px;margin-top:12px;}
.t-stars{color:var(--gold);font-size:12px;letter-spacing:2px;margin-bottom:8px;}
.testi-card>p{font-size:13px;color:var(--ink-2);line-height:1.75;}
.t-who{display:flex;align-items:center;gap:10px;margin-top:12px;}
.t-ava{
  width:36px;height:36px;border-radius:50%;flex:none;
  background:var(--grad-lite);color:#fff;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.t-who b{display:block;font-size:13px;}
.t-who i{font-style:normal;font-size:11px;color:var(--ink-3);}

/* ---------- CTA / 页脚 ---------- */
.cta-card{
  margin:22px 0 0;border-radius:var(--radius);padding:24px 20px;text-align:center;
  background:var(--grad);color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-card::before{content:"";position:absolute;top:-60px;right:-60px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.5),transparent 65%);}
.cta-card>*{position:relative;z-index:1;}
.cta-card h3{font-size:19px;font-weight:800;margin-bottom:8px;}
.cta-card p{font-size:12.5px;color:rgba(255,255,255,.85);max-width:300px;margin:0 auto 16px;line-height:1.7;}
.cta-card .btn-primary{background:#fff;color:var(--primary);box-shadow:0 10px 24px rgba(0,0,0,.18);}
.foot{text-align:center;padding:30px 10px 10px;color:var(--ink-3);font-size:11px;line-height:1.9;}
.foot-brand{display:flex;align-items:center;justify-content:center;gap:8px;color:var(--ink);font-size:14px;font-weight:700;margin-bottom:6px;}
.foot .dim{color:var(--ink-3);opacity:.8;}

/* ---------- 子页头 ---------- */
.page-head{background:var(--grad);color:#fff;padding:calc(26px + env(safe-area-inset-top)) 20px 24px;position:relative;overflow:hidden;}
.page-head::before{content:"";position:absolute;top:-60px;right:-50px;width:190px;height:190px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.45),transparent 65%);}
.page-head>*{position:relative;z-index:1;}
.page-head h1{font-size:24px;font-weight:800;display:flex;align-items:center;gap:10px;}
.page-head p{font-size:12.5px;color:rgba(255,255,255,.85);margin-top:6px;}

/* ---------- 收益测算 ---------- */
.calc-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 18px;margin-top:20px;}
.calc-field{margin-bottom:20px;}
.calc-field:last-child{margin-bottom:4px;}
.calc-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.calc-label span{font-size:13.5px;color:var(--ink-2);}
.calc-val{font-size:17px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.range{
  -webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;
  background:linear-gradient(90deg,var(--primary-2),var(--primary-4));
  outline:none;
}
.range::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:24px;height:24px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);box-shadow:0 4px 14px rgba(26,107,255,.4);
  cursor:pointer;
}
.range::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--primary);cursor:pointer;}
.range-scale{display:flex;justify-content:space-between;font-size:10.5px;color:var(--ink-3);margin-top:6px;}

.result-card{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;}
.result{border-radius:16px;padding:18px 14px;text-align:center;border:1px solid var(--line);}
.result-buy{background:linear-gradient(135deg,#f0f6ff,#eef1ff);border-color:#dbe7ff;}
.result-nobuy{background:linear-gradient(135deg,#f0fdf6,#effcfb);border-color:#d5f5e6;}
.result-tag{font-size:11px;font-weight:700;color:var(--ink-2);display:flex;align-items:center;justify-content:center;gap:6px;}
.result-tag i{color:var(--primary);}
.result-nobuy .result-tag i{color:var(--green);}
.result-num{font-size:24px;font-weight:800;margin:10px 0 6px;font-variant-numeric:tabular-nums;}
.result-buy .result-num{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.result-nobuy .result-num{background:linear-gradient(135deg,#10b981,#0ea5e9);-webkit-background-clip:text;background-clip:text;color:transparent;}
.result-sub{font-size:10px;color:var(--ink-3);line-height:1.5;}
.calc-note{display:flex;gap:8px;margin-top:16px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 14px;font-size:11.5px;color:var(--ink-2);line-height:1.7;}
.calc-note i{color:var(--primary);margin-top:3px;}
.calc-cta{margin-top:20px;}

/* ---------- 文档 ---------- */
.doc-card{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px;margin-top:20px;text-decoration:none;color:var(--ink);
  transition:.2s;
}
.doc-card:active{transform:scale(.98);}
.doc-ico{
  width:48px;height:48px;border-radius:14px;flex:none;
  background:var(--grad);color:#fff;font-size:20px;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(26,107,255,.35);
}
.doc-info{flex:1;min-width:0;}
.doc-info h3{font-size:15.5px;font-weight:800;}
.doc-info p{font-size:11.5px;color:var(--ink-2);margin-top:3px;line-height:1.6;}
.doc-arrow{color:var(--ink-3);font-size:13px;flex:none;}
.doc-tips{margin-top:20px;}
.doc-tip{display:flex;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:13px 14px;margin-top:10px;font-size:12px;color:var(--ink-2);line-height:1.7;}
.doc-tip i{color:var(--primary);margin-top:3px;font-size:13px;}
.doc-tip b{color:var(--ink);display:block;margin-bottom:2px;}

/* ---------- 底部导航 ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1000;
  display:flex;background:rgba(255,255,255,.96);
  backdrop-filter:blur(20px) saturate(1.6);-webkit-backdrop-filter:blur(20px) saturate(1.6);
  border-top:1px solid var(--line);
  padding:6px 8px calc(6px + env(safe-area-inset-bottom));
  box-shadow:0 -10px 30px rgba(26,107,255,.10);
}
.tab{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 0 4px;color:var(--ink-3);font-size:10.5px;text-decoration:none;
  transition:.2s;border-radius:12px;
}
.tab i{font-size:20px;line-height:1;transition:.2s;}
.tab span{letter-spacing:.2px;line-height:1.3;}
.tab:active{transform:scale(.92);}
.tab.active{color:var(--primary);font-weight:700;}
.tab.active i{background:linear-gradient(135deg,#eaf3ff,#eef1ff);border-radius:999px;padding:5px 16px;color:var(--primary);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:none;}