:root{
  --ink:#1b2a6b;
  --ink-2:#33407f;
  --brand:#2f6fed;
  --brand-d:#1f52c4;
  --line:#e3e9f5;
  --muted:#6b7690;
  --card:#ffffff;
  --grad:linear-gradient(165deg,#ffffff 0%,#f2f6fd 42%,#dfe8f8 100%);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--grad);color:var(--ink-2);
  font:15px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  min-height:100vh;
}
h1,h2,h3,.serif{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;color:var(--ink);font-weight:600}
a{color:var(--brand);text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* ---------- 顶部导航 ---------- */
.nav-wrap{padding:18px 20px 0;position:sticky;top:0;z-index:50}
.nav{
  max-width:1080px;margin:0 auto;background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);border-radius:999px;
  display:flex;align-items:center;gap:24px;padding:10px 14px 10px 20px;
  box-shadow:0 6px 24px rgba(27,42,107,.08);
}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--ink);font-size:17px;letter-spacing:.2px}
.logo-dot{width:22px;height:22px;border-radius:7px;background:var(--brand);display:inline-block;position:relative}
.logo-dot::after{content:"";position:absolute;inset:6px;border-radius:50%;background:#fff;opacity:.85}
.menu{display:flex;gap:6px;margin-left:auto}
.menu a{padding:8px 16px;border-radius:999px;color:var(--ink-2);font-size:14px}
.menu a:hover{background:#f1f5fd}
.menu a.on{background:#eaf1fe;color:var(--brand-d);font-weight:600}
.nav-right{display:flex;gap:8px}
.pill{padding:8px 16px;border-radius:999px;font-size:14px;border:1px solid var(--line);color:var(--ink-2);background:#fff}
.pill:hover{border-color:var(--brand);color:var(--brand-d)}
.pill.solid{background:var(--brand);border-color:var(--brand);color:#fff}
.pill.solid:hover{background:var(--brand-d)}
@media(max-width:760px){
  .menu{display:none}
  .nav{gap:12px}
  .nav-right{margin-left:auto}
}

/* ---------- Hero ---------- */
.hero{padding:70px 0 40px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.kicker{font-size:12px;letter-spacing:3px;color:var(--brand);font-weight:600;margin-bottom:14px}
.hero h1{font-size:46px;line-height:1.28;margin:0 0 20px}
.hero p.lead{font-size:15px;color:var(--muted);margin:0 0 26px;max-width:520px}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:13px;color:var(--brand-d);box-shadow:0 3px 12px rgba(27,42,107,.06)}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding:44px 0 24px}.hero h1{font-size:34px}}

/* ---------- 玻璃卡片 ---------- */
.glass{
  background:rgba(255,255,255,.42);
  border:1px solid rgba(255,255,255,.7);
  border-radius:26px;padding:22px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 40px rgba(27,42,107,.10);
}
.glass-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.glass-cell{background:rgba(255,255,255,.6);border-radius:18px;padding:26px 14px;text-align:center;font-size:15px;color:var(--ink);font-weight:600}
.float-tag{display:inline-block;background:#fff;border-radius:999px;padding:7px 15px;font-size:12px;color:var(--ink-2);box-shadow:0 4px 14px rgba(27,42,107,.12)}

/* ---------- 分区 ---------- */
.section{padding:26px 0 60px}
.section-title{font-size:26px;margin:0 0 6px}
.section-sub{color:var(--muted);font-size:14px;margin:0 0 24px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px;transition:.18s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(27,42,107,.10)}
.card .num{font-size:12px;color:var(--brand);letter-spacing:2px;margin-bottom:10px}
.card h3{font-size:19px;margin:0 0 10px}
.card p{font-size:14px;color:var(--muted);margin:0 0 16px}
.card a.more{font-size:14px;font-weight:600}

/* ---------- 表单卡片 ---------- */
.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px}
label{display:block;font-size:13px;color:var(--muted);margin:0 0 7px}
input[type=text]{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  font-size:15px;background:#fbfcfe;color:var(--ink);
}
input[type=text]:focus{outline:none;border-color:var(--brand);background:#fff}
.row{margin-bottom:16px}
button{padding:13px 22px;border:0;border-radius:12px;background:var(--brand);color:#fff;font-size:15px;font-weight:600;cursor:pointer;width:100%}
button:hover{background:var(--brand-d)}
button:disabled{opacity:.55}
.plans{display:grid;gap:10px}
.plan{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:14px;padding:14px 16px;cursor:pointer;background:#fff}
.plan:hover{border-color:#c6d6f7}
.plan.on{border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,111,237,.12)}
.plan input{accent-color:var(--brand)}
.plan .t{font-weight:600;color:var(--ink)}
.plan .d{font-size:12px;color:var(--muted)}
.plan .p{margin-left:auto;font-weight:700;color:var(--brand-d);white-space:nowrap}
.msg{margin-top:12px;font-size:13px;color:#b42318;min-height:20px}
.q{display:flex;gap:8px}
.q input{flex:1}
.q button{width:auto;padding:0 20px;font-size:14px}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}
.step::before{
  counter-increment:s;content:"0" counter(s);
  display:block;font-size:12px;letter-spacing:2px;color:var(--brand);font-weight:700;margin-bottom:8px;
}
.step h4{margin:0 0 6px;font-size:15px;color:var(--ink)}
.step p{margin:0;font-size:13px;color:var(--muted)}

/* ---------- 键值 ---------- */
.kv{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid #f1f4f9;font-size:14px}
.kv:last-child{border-bottom:0}
.kv .k{color:var(--muted);flex:0 0 96px}
.kv .v{word-break:break-all;text-align:right;color:var(--ink)}
.badge{display:inline-block;padding:3px 11px;border-radius:999px;font-size:13px}
.b-ok{background:#e7f6ec;color:#087443}
.b-bad{background:#fdeceb;color:#b42318}
.b-wait{background:#eef2f7;color:#344054}
a.dl{display:block;text-align:center;padding:13px;border-radius:12px;background:var(--brand);color:#fff;font-weight:600;margin-bottom:10px}
a.dl.alt{background:#fff;color:var(--brand);border:1px solid var(--brand)}
a.back{display:block;text-align:center;padding:12px;border:1px solid var(--line);border-radius:12px;color:var(--ink-2);background:#fff;font-size:14px}
.warn{background:#fff8e6;border:1px solid #f5d98a;border-radius:12px;padding:13px;font-size:13px;color:#7a4d05}

/* ---------- 页脚 & 浮动 ---------- */
.footer{border-top:1px solid var(--line);margin-top:30px;padding:26px 0 90px;color:var(--muted);font-size:13px;text-align:center}
.contact{
  position:fixed;right:22px;bottom:22px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:11px 20px;font-size:14px;color:var(--ink-2);
  box-shadow:0 8px 26px rgba(27,42,107,.14);display:flex;align-items:center;gap:8px;z-index:60;
}
.contact::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand)}

/* ---------- 手机端（≤560px）---------- */
@media(max-width:560px){
  .wrap{padding:0 14px}
  .nav-wrap{padding:10px 10px 0}
  .nav{padding:8px 10px 8px 14px;border-radius:20px}
  .logo{font-size:15px}
  .pill{padding:7px 12px;font-size:13px}
  .section{padding:18px 0 50px}
  .section-title{font-size:22px}
  .panel{padding:18px 14px;border-radius:16px}
  .hero{padding:30px 0 18px}
  .hero h1{font-size:27px}
  input[type=text]{padding:14px 14px;font-size:16px}   /* ≥16px 防 iOS 聚焦缩放 */
  button{padding:15px 22px;font-size:16px}
  .plan{padding:15px 14px}
  .steps{grid-template-columns:1fr;gap:10px}
  .glass-grid{grid-template-columns:1fr 1fr}
  .glass-cell{padding:18px 10px;font-size:13px}
  .contact{right:12px;bottom:12px;padding:10px 16px;font-size:13px}
  .kv{font-size:13px}
  .kv .k{flex-basis:84px}
  a.dl{padding:15px;font-size:15px}
  #cp-qr img,#cp-qr canvas{width:190px!important;height:190px!important}
}

/* ---------- 小白引导步骤（手机站）---------- */
.guide{display:grid;gap:10px;margin:0 0 20px}
.guide-item{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px}
.guide-item .n{
  flex:0 0 30px;height:30px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}
.guide-item h4{margin:0 0 3px;font-size:15px;color:var(--ink)}
.guide-item p{margin:0;font-size:13px;color:var(--muted);line-height:1.65}
.guide-item p b{color:var(--ink-2)}
.guide-item.done{border-color:#bfe5cd;background:#f2fbf5}
.guide-item.done .n{background:#087443;content:"✓"}
.guide-item.done .n::after{font-size:14px}
.guide-item.done .n{font-size:0}
.guide-item.done .n::before{content:"✓";font-size:15px}

/* 大按钮 CTA */
a.cta{
  display:block;text-align:center;padding:16px;border-radius:14px;
  background:var(--brand);color:#fff;font-weight:700;font-size:16px;
  box-shadow:0 8px 22px rgba(47,111,237,.28);margin-bottom:12px;
}
a.cta:active{transform:scale(.985)}
a.cta.ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand);box-shadow:none}