/* 默认常规字号；尺寸全用 rem、不写死高度，用户缩放或开系统大字体时自动跟着放大 */
:root {
  color-scheme: light;
  --maple: #9f1d1d;
  --maple-deep: #7a1414;
  --maple-soft: #f7e6e1;
  --paper: #f5efe7;
  --card: #fffdf9;
  --ink: #1a1512;
  --ink-2: #3d332d;
  --line: #d9cdc1;
  --warn-bg: #fff3e0;
  --warn-ink: #7c2d12;
  --ok: #17603f;
  --ok-bg: #e5f2ea;
  --err: #b42318;
  --serif: "Songti SC", "STSong", "Noto Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { font-size: 100%; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font: 1rem/1.5 var(--sans);
  color: var(--ink);
  background: linear-gradient(180deg, #ecdfd1 0, var(--paper) 14rem);
  /* 左右留白用 px：字体放大时不跟着变宽，把空间留给输入框 */
  padding: 0 12px calc(1.5rem + env(safe-area-inset-bottom));
}

.top { max-width: 30rem; margin: 0 auto; padding: 1.25rem 4px 1rem; }
.logo { display: block; height: 1.5rem; width: auto; }
.top h1 {
  font-family: var(--serif);
  font-size: 1.6rem;
  line-height: 1.2;
  letter-spacing: 0.06em;
  margin: 0.75rem 0 0;
}

.card {
  max-width: 30rem;
  margin: 0 auto;
  background: var(--card);
  border-radius: 1rem;
  border-top: 0.3rem solid var(--maple);
  box-shadow: 0 1rem 2.5rem -1.5rem rgba(90, 30, 20, 0.4);
  padding: 1.25rem 16px 1.5rem;
}
.card section { animation: rise 360ms var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(0.5rem); } to { opacity: 1; transform: none; } }

.field { display: block; margin-bottom: 1.1rem; }
.label { display: block; font-size: 0.95rem; font-weight: 600; margin-bottom: 0.35rem; }
input {
  display: block;
  width: 100%;
  min-height: 3rem;
  padding: 0.55rem 12px;
  /* 大字体下 11 位手机号也要完整显示：字号不超过屏宽的 10% */
  font: 500 min(1.125rem, 10vw)/1.3 var(--sans);
  letter-spacing: 0.02em;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 0.7rem;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
input[name="cardNo"], input[name="idCard"] { font-size: min(1.125rem, 5.6vw); }
input::placeholder { color: #9c8f86; font-weight: 400; font-size: 0.95rem; letter-spacing: 0; }
input:focus { border-color: var(--maple); box-shadow: 0 0 0 0.2rem rgba(159, 29, 29, 0.15); }
input[aria-invalid="true"] { border-color: var(--err); background: #fff8f7; }
.err { display: block; margin-top: 0.3rem; font-size: 0.9rem; font-weight: 500; color: var(--err); }
.err:empty { display: none; }

.btn {
  display: block;
  width: 100%;
  min-height: 3rem;
  padding: 0.6rem 1rem;
  border: 0;
  border-radius: 0.8rem;
  background: var(--maple);
  color: #fff;
  font: 600 1.075rem/1.3 var(--sans);
  letter-spacing: 0.08em;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 120ms var(--ease), background 150ms;
}
.btn:active:not(:disabled) { transform: scale(0.98); background: var(--maple-deep); }
.btn:disabled { opacity: 0.55; }
.btn:focus-visible { outline: 0.2rem solid rgba(159, 29, 29, 0.4); outline-offset: 0.15rem; }
.btn.is-loading { color: transparent; position: relative; }
.btn.is-loading::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 1.3rem; height: 1.3rem;
  margin: -0.65rem 0 0 -0.65rem;
  border: 0.18rem solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#code-box { margin-top: 1.4rem; }

.resend {
  display: block;
  margin: 0.9rem auto 0;
  padding: 0.5rem 1rem;
  border: 0;
  background: none;
  color: var(--maple);
  font: 500 0.95rem var(--sans);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  cursor: pointer;
}
.resend:disabled { color: #8a7d74; text-decoration: none; }

.msg { margin: 0.8rem 0 0; font-size: 0.95rem; font-weight: 500; color: var(--err); text-align: center; }
.msg:empty { display: none; }
#msg-form { margin: 0 0 0.8rem; }
.msg.is-ok { color: var(--ok); }

.alert {
  margin: -0.3rem 0 1.1rem;
  padding: 0.8rem 0.9rem;
  border-radius: 0.7rem;
  background: var(--warn-bg);
  color: var(--warn-ink);
  font-size: 0.95rem;
  border-left: 0.3rem solid #d97706;
}
.alert b { display: block; font-size: 1rem; }
.alert span:empty { display: none; }

.verified {
  margin: 0 0 1.1rem;
  padding: 0.6rem 0.9rem;
  border-radius: 0.7rem;
  background: var(--ok-bg);
  color: var(--ok);
  font-size: 0.95rem;
  font-weight: 600;
}
.note { margin: 0 0 1rem; color: var(--ink-2); font-size: 0.9rem; }
.note:empty { display: none; }

.done { text-align: center; }
.done h2 { font-family: var(--serif); font-size: 1.5rem; margin: 0 0 1rem; letter-spacing: 0.08em; }
.seal {
  width: 4.25rem; height: 4.25rem;
  margin: 0.5rem auto 1rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 2.1rem;
  color: #fff;
  background: radial-gradient(circle at 30% 30%, #c53030, var(--maple-deep));
  box-shadow: 0 0 0 0.45rem var(--maple-soft);
  animation: stamp 520ms var(--ease) both;
}
@keyframes stamp { from { transform: scale(1.4) rotate(-12deg); opacity: 0; } to { transform: none; opacity: 1; } }

.summary {
  margin: 0 0 1rem;
  padding: 0.9rem 1rem;
  border-radius: 0.7rem;
  background: #f7f1ea;
  text-align: left;
  font-size: 0.95rem;
}
.summary div { display: flex; flex-wrap: wrap; gap: 0 0.8rem; padding: 0.25rem 0; }
.summary dt { color: var(--ink-2); min-width: 4.5em; }
.summary dd { margin: 0; font-weight: 600; word-break: break-all; }

.foot { max-width: 30rem; margin: 1.2rem auto 0; text-align: center; font-size: 0.8rem; color: var(--ink-2); }

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