:root {
  color-scheme: light;
  --bg: #f4f7f5;
  --surface: #ffffff;
  --text: #17211d;
  --muted: #65736b;
  --line: #d9e0dc;
  --accent: #166c55;
  --accent-2: #d8752a;
  --danger: #aa3b2f;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(22, 108, 85, 0.08), rgba(216, 117, 42, 0.05) 46%, rgba(255, 255, 255, 0) 70%),
    var(--bg);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(360px, 0.9fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  width: min(1120px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 40px 0;
}

.login-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: min(680px, calc(100vh - 80px));
  overflow: hidden;
}

.login-visual img {
  width: min(100%, 560px);
  height: auto;
  display: block;
  filter: drop-shadow(0 28px 36px rgba(34, 45, 40, 0.16));
}

.login-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(28px, 4vw, 44px);
  box-shadow: 0 18px 48px rgba(28, 43, 35, 0.1);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
}

.subcopy {
  margin: 14px 0 28px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.login-form {
  display: grid;
  gap: 12px;
}

.login-form label {
  color: #273c31;
  font-size: 14px;
  font-weight: 800;
}

.login-form input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid #b9c9bf;
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  outline: none;
}

.login-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(22, 108, 85, 0.14);
}

.login-form button {
  height: 48px;
  margin-top: 4px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.login-form button:hover {
  background: #115943;
  box-shadow: 0 10px 20px rgba(22, 108, 85, 0.18);
  transform: translateY(-1px);
}

.login-form button:active {
  transform: translateY(0);
}

.login-error {
  margin: 4px 0 0;
  color: var(--danger);
  font-size: 13px;
  font-weight: 700;
}

@media (max-width: 760px) {
  .login-shell {
    grid-template-columns: 1fr;
    gap: 16px;
    width: min(100% - 24px, 520px);
    padding: 22px 0;
  }

  .login-visual {
    min-height: auto;
  }

  .login-visual img {
    width: min(86vw, 340px);
  }
}