:root {
  --bg: #f6f6f4;
  --surface: #ffffff;
  --border: #e6e4dd;
  --text: #1c1c1a;
  --muted: #6b6a65;
  --accent: #534ab7;
  --accent-soft: #eeedfe;
  --danger: #a32d2d;
  --ok: #1d9e75;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand span { color: var(--accent); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 36px 28px 64px; }

.hero h1 { font-size: 26px; font-weight: 600; margin: 0 0 6px; letter-spacing: -0.02em; }
.hero p { color: var(--muted); margin: 0 0 28px; font-size: 14px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(28, 28, 26, 0.08);
}

.thumb {
  /* 有图标时是这块浅色底 + 居中图标；没图标时内联的 accent 色会盖掉它 */
  background: #f4f3ef;
  height: 96px;
  border-radius: 10px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
}

.thumb img {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: block;
  box-shadow: 0 3px 12px rgba(28, 28, 26, 0.18);
}

.card h3 { margin: 0 0 4px; font-size: 16px; font-weight: 600; }
.card p { margin: 0; color: var(--muted); font-size: 13px; }

.tag {
  display: inline-block;
  margin-top: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
}

.btn {
  display: inline-block;
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #463ca0; border-color: #463ca0; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.lang-btn {
  padding: 5px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.lang-btn:hover { border-color: var(--muted); color: var(--text); }

.auth-wrap { max-width: 380px; margin: 72px auto; padding: 0 24px; }
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.auth-card h2 { margin: 0 0 4px; font-size: 19px; font-weight: 600; }
.auth-card .sub { color: var(--muted); font-size: 13px; margin: 0 0 22px; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.field input {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
.field input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

.remember {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 4px 0 18px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}
.remember input {
  width: 15px;
  height: 15px;
  margin: 0;
  flex: none;
  accent-color: var(--accent);
  cursor: pointer;
}

/* 密码框 + 小眼睛 */
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 42px !important; }
.eye {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  border: none; background: none; cursor: pointer;
  padding: 6px; line-height: 0; color: var(--muted);
}
.eye:hover { color: var(--text); }
.eye svg { display: block; }

.msg { min-height: 20px; font-size: 13px; margin: 10px 0 0; color: var(--danger); }
.msg.ok { color: var(--ok); }
.switch { margin-top: 18px; font-size: 13px; color: var(--muted); text-align: center; }
.switch button {
  background: none; border: none; padding: 0;
  color: var(--accent); font-size: 13px; font-family: inherit; cursor: pointer;
}

.hint {
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}