:root {
  --brand-blue: #123F73;
  --brand-blue-bright: #1677C8;
  --brand-yellow: #F2C14E;
  --paper: #F5F8FC;
  --ink: #17324D;
  --muted: #61748A;
  --line: #D7E1EC;
  --white: #FFFFFF;
  --risk: #B44A3A;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--ink); background: var(--paper); }
button, input, textarea { font: inherit; }
.site-header { min-height: 76px; padding: 14px clamp(20px,5vw,72px); display: flex; align-items: center; justify-content: space-between; background: var(--white); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 16px; color: var(--ink); text-decoration: none; font-weight: 700; }
.brand img { width: 105px; max-height: 46px; object-fit: contain; }
.brand span { padding-left: 16px; border-left: 1px solid var(--line); }
.header-note { padding: 7px 11px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); font-size: 13px; }
.apply-shell { width: min(1180px,calc(100% - 40px)); margin: 0 auto; padding: 52px 0 72px; display: grid; grid-template-columns: minmax(280px,.72fr) minmax(0,1.28fr); gap: clamp(36px,6vw,78px); align-items: start; }
.apply-intro { position: sticky; top: 32px; padding-top: 20px; }
.eyebrow { margin: 0 0 12px; color: var(--brand-blue-bright); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h1 { margin: 0; font-size: clamp(38px,5vw,62px); line-height: 1.15; }
h2 { margin: 0; font-size: clamp(25px,3vw,36px); }
.lead { margin: 22px 0 30px; color: var(--muted); font-size: 17px; line-height: 1.8; }
.steps { border-left: 4px solid var(--brand-yellow); background: var(--white); box-shadow: 0 16px 44px rgba(18,63,115,.08); }
.steps div { display: grid; grid-template-columns: 38px 1fr; gap: 4px 12px; padding: 20px 22px; border-bottom: 1px solid var(--line); }
.steps div:last-child { border-bottom: 0; }
.steps b { grid-row: span 2; color: var(--brand-blue-bright); }
.steps span { font-weight: 800; }
.steps small { color: var(--muted); }
.form-card { padding: clamp(24px,4vw,42px); background: var(--white); border: 1px solid var(--line); box-shadow: 0 20px 60px rgba(18,63,115,.08); }
.form-heading p { margin: 10px 0 28px; color: var(--muted); line-height: 1.7; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.wide { grid-column: 1/-1; }
.field { display: grid; gap: 8px; margin-bottom: 18px; }
.field span, legend { font-weight: 800; font-size: 14px; }
em { color: var(--risk); font-style: normal; font-size: 12px; }
i { color: var(--muted); font-style: normal; font-size: 12px; }
input, textarea { width: 100%; padding: 13px 14px; border: 1px solid #B8C7D8; border-radius: 6px; color: var(--ink); background: #FBFCFE; outline: none; }
textarea { min-height: 118px; resize: vertical; line-height: 1.65; }
input:focus, textarea:focus { border-color: var(--brand-blue-bright); box-shadow: 0 0 0 3px rgba(22,119,200,.12); }
.field small, .field-error { min-height: 18px; color: var(--risk); font-size: 12px; }
[hidden] { display: none !important; }
.team-scope { padding: 16px; border: 1px solid var(--line); border-radius: 6px; background: #FBFCFE; }
.team-scope legend { padding: 0 4px; }
.team-scope > small { display: block; margin-top: 10px; color: var(--muted); }
.scope-options { display: flex; flex-wrap: wrap; gap: 12px; }
.scope-options label { display: flex; align-items: center; gap: 8px; min-width: 180px; padding: 11px 13px; border: 1px solid var(--line); border-radius: 6px; background: var(--white); cursor: pointer; }
.scope-options input { width: auto; margin: 0; }
fieldset { margin: 6px 0 24px; padding: 0; border: 0; }
legend { margin-bottom: 12px; }
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.problem-grid label { position: relative; }
.problem-grid input { position: absolute; opacity: 0; pointer-events: none; }
.problem-grid span { display: flex; min-height: 48px; align-items: center; padding: 10px 13px; border: 1px solid var(--line); border-radius: 6px; background: #FBFCFE; font-size: 14px; font-weight: 700; cursor: pointer; }
.problem-grid input:checked + span { color: var(--white); background: var(--brand-blue); border-color: var(--brand-blue); box-shadow: inset 4px 0 0 var(--brand-yellow); }
.problem-grid input:focus-visible + span { outline: 3px solid rgba(22,119,200,.2); }
.primary-button { width: 100%; min-height: 50px; border: 0; border-radius: 6px; color: var(--white); background: var(--brand-blue); font-weight: 800; cursor: pointer; }
.primary-button:hover { background: #0D315B; }
.primary-button:disabled { opacity: .55; cursor: wait; }
.form-message { min-height: 24px; color: var(--risk); }
.success-card { padding: 38px 10px; text-align: center; outline: none; }
.success-mark { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 22px; border-radius: 50%; color: var(--brand-blue); background: var(--brand-yellow); font-size: 30px; font-weight: 900; }
.success-card p { color: var(--muted); line-height: 1.8; }
.success-note { display: inline-block; padding: 8px 12px; background: var(--paper); }
.success-card a { color: var(--brand-blue-bright); font-weight: 800; }
@media (max-width: 850px) {
  .apply-shell { grid-template-columns: 1fr; padding-top: 28px; }
  .apply-intro { position: static; padding-top: 0; }
  .steps { display: grid; grid-template-columns: repeat(3,1fr); border-left: 0; border-top: 4px solid var(--brand-yellow); }
  .steps div { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .site-header { padding-inline: 15px; }
  .brand img { width: 84px; }
  .brand span, .header-note { display: none; }
  .apply-shell { width: min(100% - 24px,1180px); }
  .field-grid, .problem-grid, .steps { grid-template-columns: 1fr; }
  .form-card { padding: 22px 18px; }
  h1 { font-size: 38px; }
}