:root {
  --navy: #0b2a5b;
  --blue: #1558d6;
  --gold: #e8b23a;
  --gold-dark: #c8921a;
  --bg: #f3f6fb;
  --text: #1c2536;
  --muted: #6b778c;
  --radius: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6;
}
a { color: var(--blue); text-decoration: none; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* 按钮 */
.btn {
  display: inline-block; border: 0; cursor: pointer; font-size: 17px; font-weight: 600;
  padding: 14px 28px; border-radius: 999px; color: #3a2a00;
  background: linear-gradient(135deg, #f6cf6a, var(--gold));
  box-shadow: 0 6px 16px rgba(232, 178, 58, .35);
}
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .6; }
.btn.block { display: block; width: 100%; }
.btn.ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.7); box-shadow: none; }

/* ===== 官网 ===== */
.nav { background: var(--navy); color: #fff; }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav .brand { font-size: 18px; font-weight: 700; letter-spacing: 1px; }
.nav .brand i { color: var(--gold); font-style: normal; }
.nav a { color: #dce6ff; margin-left: 22px; font-size: 15px; }
.hero { background: linear-gradient(160deg, var(--navy), var(--blue)); color: #fff; padding: 72px 0 80px; }
.hero h1 { font-size: 38px; line-height: 1.3; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero p { margin: 16px 0 30px; font-size: 18px; color: #d3e0ff; max-width: 560px; }
.hero .btns { display: flex; gap: 14px; flex-wrap: wrap; }
.section { padding: 56px 0; }
.section h2 { font-size: 26px; text-align: center; margin-bottom: 8px; color: var(--navy); }
.section .sub { text-align: center; color: var(--muted); margin-bottom: 34px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.card { background: #fff; border-radius: var(--radius); padding: 26px 22px; box-shadow: 0 4px 18px rgba(11,42,91,.07); }
.card .ico { font-size: 30px; }
.card h3 { margin: 10px 0 6px; color: var(--navy); }
.card p { color: var(--muted); font-size: 14.5px; }
.steps .card { text-align: center; }
.steps .num { width: 40px; height: 40px; border-radius: 50%; background: var(--navy); color: var(--gold);
  display: inline-flex; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 8px; }
details { background: #fff; border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; box-shadow: 0 2px 10px rgba(11,42,91,.05); }
summary { cursor: pointer; font-weight: 600; color: var(--navy); }
details p { margin-top: 8px; color: var(--muted); }
.cta { background: var(--navy); color: #fff; text-align: center; padding: 54px 20px; }
.cta h2 { color: #fff; }
.cta p { color: #b9c8ea; margin: 8px 0 24px; }
.footer { background: #071d42; color: #8ea2cc; font-size: 13px; padding: 26px 0; text-align: center; }
.footer p + p { margin-top: 6px; }

/* ===== H5 ===== */
.h5 { max-width: 480px; margin: 0 auto; min-height: 100vh; background: var(--bg); padding-bottom: 90px; }
.h5-top { background: linear-gradient(160deg, var(--navy), var(--blue)); color: #fff; padding: 30px 22px 74px; }
.h5-top .co { font-size: 13px; color: #b9c8ea; }
.h5-top h1 { font-size: 26px; margin: 8px 0 6px; line-height: 1.35; }
.h5-top h1 em { color: var(--gold); font-style: normal; }
.h5-top .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.h5-top .tags span { background: rgba(255,255,255,.14); padding: 3px 10px; border-radius: 99px; font-size: 12.5px; }
.form-card { background: #fff; margin: -50px 14px 0; border-radius: 18px; padding: 22px 18px 20px; box-shadow: 0 10px 30px rgba(11,42,91,.14); }
.form-card h2 { font-size: 18px; color: var(--navy); margin-bottom: 14px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 5px; }
.field label b { color: #e5484d; }
.field input, .field select {
  width: 100%; height: 46px; border: 1.5px solid #dbe3f1; border-radius: 10px; padding: 0 12px;
  font-size: 16px; background: #fbfcff; color: var(--text); outline: none; appearance: none; -webkit-appearance: none;
}
.field select { background-image: linear-gradient(45deg, transparent 50%, #8a97b0 50%), linear-gradient(135deg, #8a97b0 50%, transparent 50%);
  background-position: calc(100% - 18px) 20px, calc(100% - 13px) 20px; background-size: 5px 5px; background-repeat: no-repeat; }
.field input:focus, .field select:focus { border-color: var(--blue); background: #fff; }
.field .err { display: none; color: #e5484d; font-size: 12.5px; margin-top: 3px; }
.field.bad .err { display: block; }
.field.bad input, .field.bad select { border-color: #e5484d; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.more-toggle { font-size: 14px; color: var(--blue); margin: 2px 0 12px; cursor: pointer; user-select: none; }
.more { display: none; }
.more.open { display: block; }
.consent { display: flex; gap: 8px; font-size: 12.5px; color: var(--muted); margin: 6px 0 14px; align-items: flex-start; }
.consent input { margin-top: 3px; width: 17px; height: 17px; flex: none; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.risk { margin: 18px 18px 0; font-size: 12px; color: var(--muted); line-height: 1.7; }
.risk strong { color: #b45309; }
.toast { position: fixed; left: 50%; top: 22%; transform: translateX(-50%); background: rgba(20,24,36,.88); color: #fff;
  padding: 10px 18px; border-radius: 10px; font-size: 14px; display: none; z-index: 9; max-width: 80%; text-align: center; }
.done { text-align: center; padding: 34px 10px 10px; }
.done .ok { width: 64px; height: 64px; border-radius: 50%; background: #16a34a; color: #fff; font-size: 34px;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; }
.done h2 { color: var(--navy); }
.done p { color: var(--muted); margin-top: 8px; font-size: 14.5px; }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: none; align-items: flex-end; z-index: 10; }
.modal.show { display: flex; }
.modal .sheet { background: #fff; width: 100%; max-width: 480px; margin: 0 auto; max-height: 75vh; overflow: auto;
  border-radius: 18px 18px 0 0; padding: 20px; font-size: 14px; }
.modal h3 { margin-bottom: 10px; color: var(--navy); }
.modal p { margin-bottom: 8px; color: #44506a; }
.modal .btn { margin-top: 10px; }

@media (max-width: 640px) {
  .hero { padding: 48px 0 56px; }
  .hero h1 { font-size: 28px; }
  .nav a { margin-left: 14px; font-size: 14px; }
}