/* style.css */
* { box-sizing: border-box; }

:root {
  --main: #4f7cff;
  --main-dark: #3a63d8;
  --bg: #f5f7fb;
  --text: #2c3444;
  --muted: #8b95a7;
  --line: #e6eaf2;
  --radius: 14px;
}

body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

.container { max-width: 860px; margin: 0 auto; padding: 0 16px; }

/* 顶栏 */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px; gap: 12px; flex-wrap: wrap;
}
.logo { font-weight: 700; font-size: 18px; color: var(--main); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.nav-links a { color: var(--text); text-decoration: none; font-size: 15px; }
.nav-links a:hover { color: var(--main); }
.nav-links .user { color: var(--muted); font-size: 14px; }

/* 按钮 */
.btn, .btn-sm {
  display: inline-block;
  background: var(--main); color: #fff !important;
  border: none; border-radius: 10px;
  padding: 10px 22px; font-size: 15px;
  cursor: pointer; text-decoration: none;
  transition: .2s;
}
.btn:hover, .btn-sm:hover { background: var(--main-dark); }
.btn-sm { padding: 6px 14px; font-size: 14px; }
.btn.ok { background: #22b573; }
.btn.ok:hover { background: #1b9a61; }
.btn.ghost { background: #eef2ff; color: var(--main) !important; }
.btn.danger { background: #ef4a4a; }
.btn.danger:hover { background: #d63a3a; }
.inline { display: inline; }

/* Hero */
.hero {
  text-align: center;
  padding: 48px 16px 32px;
}
.hero h1 { font-size: 30px; margin: 0 0 8px; letter-spacing: 1px; }
.hero p { color: var(--muted); margin: 0 0 22px; }

/* 卡片墙 */
.wall { display: grid; gap: 18px; padding-bottom: 40px; }

.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 2px 12px rgba(30, 50, 90, .06);
  animation: fadeIn .35s ease;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; } }

.card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, #6f9bff, #4f7cff);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; flex: 0 0 40px;
}
.who { flex: 1; min-width: 0; }
.uname { font-weight: 600; font-size: 15px; }
.time { font-size: 12px; color: var(--muted); }

.tag { font-size: 12px; padding: 3px 10px; border-radius: 20px; }
.tag-text  { background: #eef2ff; color: #4f7cff; }
.tag-image { background: #e8f9f0; color: #1b9a61; }
.tag-video { background: #fff1e8; color: #e07a2f; }

.content { margin: 6px 0 12px; white-space: normal; word-break: break-word; }

.media {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  border-radius: 10px;
  background: #f0f2f7;
  display: block;
}

/* 表单 */
.auth-box {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  margin: 40px auto;
  max-width: 420px;
  box-shadow: 0 2px 16px rgba(30, 50, 90, .08);
}
.auth-box.wide { max-width: 700px; }
.auth-box h2 { margin: 0 0 18px; font-size: 22px; }
.auth-box h3 { margin: 24px 0 12px; font-size: 17px; }

.form label { display: block; margin-bottom: 16px; font-size: 14px; color: #5a6478; }
.form input[type=text],
.form input[type=password],
.form textarea,
.form select {
  width: 100%;
  margin-top: 6px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: #fafbfe;
  outline: none;
  transition: .2s;
}
.form input:focus, .form textarea:focus, .form select:focus {
  border-color: var(--main);
  background: #fff;
}
.form textarea { resize: vertical; }
.form small { color: var(--muted); }

/* 提示 */
.alert { padding: 11px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 14px; }
.alert.error { background: #fdecec; color: #c93a3a; }
.alert.ok { background: #e8f9f0; color: #1b9a61; }

.muted { color: var(--muted); font-size: 14px; }
.empty { text-align: center; color: var(--muted); padding: 50px 0; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td {
  padding: 9px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.table th { color: var(--muted); font-weight: 500; font-size: 13px; }
.ellipsis { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.st { font-size: 13px; padding: 2px 9px; border-radius: 20px; }
.st.ok   { background: #e8f9f0; color: #1b9a61; }
.st.no   { background: #fdecec; color: #c93a3a; }
.st.wait { background: #fff6e0; color: #b8860b; }

.pending { border-left: 4px solid #f0b429; }
.actions { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }

hr { border: none; border-top: 1px solid var(--line); margin: 32px 0; }

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 30px 0 40px;
}

@media (max-width: 520px) {
  .hero h1 { font-size: 23px; }
  .auth-box { padding: 20px; margin: 20px auto; }
  .nav { height: auto; padding: 10px 0; }
}