:root {
  --blue-950: #032a61;
  --blue-900: #073b82;
  --blue-600: #086bea;
  --red: #e32127;
  --ink: #13243a;
  --muted: #607086;
  --line: #dce4ed;
  --soft: #f3f7fb;
  --white: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--soft);
}

* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; background: linear-gradient(145deg, #eaf2fb 0%, #f8fafc 52%, #e7f3f7 100%); }
a { color: inherit; }
button, input { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -70px; z-index: 10; padding: 9px 14px; color: #fff; background: var(--blue-950); }
.skip-link:focus { top: 0; }
.account-header { color: #fff; background: var(--blue-950); }
.account-header-inner { width: min(1080px, calc(100% - 36px)); min-height: 76px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; }
.brand-mark { width: 40px; height: 40px; }
.brand-copy { display: grid; line-height: 1.05; }
.brand-copy strong { font-size: 18px; letter-spacing: .03em; }
.brand-copy small { margin-top: 6px; font-size: 10px; letter-spacing: .26em; opacity: .75; }
.back-link { color: rgba(255,255,255,.84); text-decoration: none; font-size: 14px; }
.back-link:hover, .back-link:focus-visible { color: #fff; text-decoration: underline; }
.account-main { width: min(1080px, calc(100% - 36px)); margin: 0 auto; padding: 70px 0 86px; display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(44px, 7vw, 90px); align-items: start; }
.account-intro { padding-top: 34px; }
.eyebrow { margin: 0 0 15px; color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.account-intro h1 { margin: 0; color: var(--blue-950); font-size: clamp(36px, 5vw, 58px); line-height: 1.14; letter-spacing: -.035em; }
.account-intro > p:not(.eyebrow) { margin: 24px 0 0; color: var(--muted); line-height: 1.8; }
.steps { margin: 34px 0 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { position: relative; min-height: 48px; padding: 3px 0 20px 48px; color: var(--muted); line-height: 1.55; counter-increment: step; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--blue-900); font-weight: 700; }
.form-card { padding: clamp(26px, 4vw, 44px); background: #fff; border-top: 4px solid var(--blue-600); box-shadow: 0 24px 70px rgba(3,42,97,.13); }
.form-card h2 { margin: 0; font-size: 27px; }
.form-lead { margin: 10px 0 28px; color: var(--muted); line-height: 1.65; }
.field { margin-bottom: 20px; }
.field label { display: block; margin-bottom: 7px; font-weight: 700; font-size: 14px; }
.field input { width: 100%; min-height: 48px; padding: 10px 13px; color: var(--ink); background: #fff; border: 1px solid #b8c6d7; border-radius: 3px; outline: 0; }
.field input:focus { border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(8,107,234,.15); }
.field small { display: block; margin-top: 7px; color: var(--muted); line-height: 1.5; }
.primary-button { width: 100%; min-height: 50px; margin-top: 4px; border: 0; border-radius: 3px; color: #fff; background: var(--blue-600); font-weight: 800; cursor: pointer; }
.primary-button:hover { background: var(--blue-900); }
.primary-button:disabled { cursor: wait; opacity: .62; }
.message { display: none; margin-top: 20px; padding: 13px 15px; border-left: 4px solid; line-height: 1.6; }
.message.show { display: block; }
.message.success { color: #135b36; background: #eaf8f0; border-color: #2c9a5d; }
.message.error { color: #842029; background: #fcecee; border-color: #dc3545; }
.privacy-note { margin: 22px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.noscript { width: min(700px, calc(100% - 36px)); margin: 28px auto; padding: 14px; background: #fff3cd; }

@media (max-width: 760px) {
  .account-header-inner { min-height: 68px; }
  .back-link { font-size: 13px; }
  .account-main { grid-template-columns: 1fr; padding-top: 42px; gap: 34px; }
  .account-intro { padding-top: 0; }
  .steps { margin-top: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}