/* Stars刷步助手 — 全局样式（dark 主题） */
:root {
  --bg: #0e1116;
  --panel: #161b24;
  --panel-2: #1d2430;
  --border: #2a3342;
  --text: #e8eaed;
  --muted: #98a2b3;
  --accent: #10b981;
  --accent-2: #07c160;
  --accent-dim: rgba(16, 185, 129, 0.14);
  --danger: #ef4444;
  --danger-dim: rgba(239, 68, 68, 0.14);
  --warn: #f59e0b;
  --warn-dim: rgba(245, 158, 11, 0.14);
  --info: #38bdf8;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.85; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* 顶栏 */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 17, 22, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.logo { font-size: 20px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.logo .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); display: inline-block; box-shadow: 0 0 12px var(--accent); }
.topbar nav { display: flex; align-items: center; gap: 14px; }
.topbar nav > a:not(.btn) { color: var(--muted); font-size: 14px; }

/* 顶栏赞赏按钮（与免费注册并排） */
.btn-support {
  background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  color: #fff !important;
  border: none;
  font-weight: 600;
}
.btn-support:hover { filter: brightness(1.1); opacity: 1; }
.topbar .user-chip { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 20px; border-radius: 10px; font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: all 0.15s ease;
  font-family: inherit; color: var(--text); background: transparent;
}
.btn-primary { background: linear-gradient(135deg, #10b981, #07c160); color: #06281c; border: none; }
.btn-primary:hover { filter: brightness(1.08); opacity: 1; }
.btn-ghost { border-color: var(--border); color: var(--text); background: var(--panel); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--danger-dim); color: #fca5a5; border-color: rgba(239, 68, 68, 0.35); }
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }
.btn-sm { padding: 5px 12px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 13px 34px; font-size: 16px; border-radius: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 卡片 */
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
}
.card h3 { font-size: 16px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.card .sub { color: var(--muted); font-size: 13px; margin-bottom: 16px; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  font-size: 14px; font-family: inherit; outline: none; transition: border 0.15s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--accent); }
.form-row { display: flex; gap: 14px; }
.form-row .form-group { flex: 1; }

/* 提示 */
.alert { padding: 12px 16px; border-radius: 10px; font-size: 14px; margin-bottom: 14px; display: none; }
.alert.show { display: block; }
.alert-success { background: var(--accent-dim); color: #6ee7b7; border: 1px solid rgba(16, 185, 129, 0.3); }
.alert-error { background: var(--danger-dim); color: #fca5a5; border: 1px solid rgba(239, 68, 68, 0.3); }
.alert-warn { background: var(--warn-dim); color: #fcd34d; border: 1px solid rgba(245, 158, 11, 0.3); }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; }
td .muted { color: var(--muted); font-size: 12px; }
tr:hover td { background: rgba(255, 255, 255, 0.02); }

/* 徽标 */
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-green { background: var(--accent-dim); color: #6ee7b7; }
.badge-red { background: var(--danger-dim); color: #fca5a5; }
.badge-yellow { background: var(--warn-dim); color: #fcd34d; }
.badge-blue { background: rgba(56, 189, 248, 0.14); color: #7dd3fc; }
.badge-gray { background: rgba(152, 162, 179, 0.14); color: #cbd5e1; }

/* 首页 */
.hero { padding: 90px 0 60px; text-align: center; background:
  radial-gradient(600px 300px at 20% 0%, rgba(16, 185, 129, 0.12), transparent 60%),
  radial-gradient(600px 300px at 80% 10%, rgba(56, 189, 248, 0.08), transparent 60%); }
.hero h1 { font-size: 46px; font-weight: 800; letter-spacing: 1px; }
.hero h1 .grad { background: linear-gradient(90deg, #34d399, #07c160); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { color: var(--muted); font-size: 17px; margin: 18px auto 34px; max-width: 620px; }
.hero-sub b { color: var(--text); }
.hero-actions { display: flex; gap: 14px; justify-content: center; }
.platform-strip { display: flex; gap: 12px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }
.platform-strip .tag { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 6px 16px; font-size: 13px; color: var(--muted); }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; padding: 30px 0; }
.feature h3 { font-size: 15px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 13.5px; }
.section-title { text-align: center; font-size: 26px; font-weight: 800; margin: 40px 0 26px; }
.steps-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; padding-bottom: 50px; }
.step { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; text-align: center; }
.step-num { width: 38px; height: 38px; border-radius: 50%; background: var(--accent-dim); color: #34d399; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 14px; font-size: 17px; }
.step h4 { margin-bottom: 8px; font-size: 15px; }
.step p { color: var(--muted); font-size: 13.5px; }
footer { border-top: 1px solid var(--border); padding: 26px 0; text-align: center; color: var(--muted); font-size: 13px; }

/* 教程 */
.article { max-width: 800px; margin: 40px auto 60px; }
.article h2 { font-size: 24px; margin: 30px 0 12px; }
.article h2:first-child { margin-top: 0; }
.article p, .article li { color: #c3cbd6; font-size: 14.5px; }
.article ol, .article ul { padding-left: 22px; margin: 10px 0; }
.article li { margin-bottom: 6px; }
.article .box { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; margin: 14px 0; }
.article .box h4 { margin-bottom: 8px; font-size: 14.5px; }
.article code { background: var(--panel-2); border: 1px solid var(--border); padding: 2px 8px; border-radius: 6px; font-size: 13px; }
.article .tip { background: var(--accent-dim); border: 1px solid rgba(16,185,129,0.3); }
.article .warn-box { background: var(--warn-dim); border: 1px solid rgba(245,158,11,0.3); }

/* 认证页 */
.auth-wrap { max-width: 420px; margin: 70px auto 60px; }
.auth-wrap .card h1 { font-size: 22px; margin-bottom: 6px; }
.auth-wrap .card > p { color: var(--muted); font-size: 13.5px; margin-bottom: 22px; }
.auth-alt { text-align: center; margin-top: 16px; font-size: 13.5px; color: var(--muted); }

/* 控制台 */
.dash { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 26px 0 60px; }
.dash .full { grid-column: 1 / -1; }
@media (max-width: 860px) { .dash { grid-template-columns: 1fr; } .form-row { flex-direction: column; } }
.steps-input { display: flex; gap: 10px; }
.steps-input input { flex: 1; padding: 13px 16px; font-size: 18px; font-weight: 700; }
.result-box { margin-top: 14px; padding: 12px 14px; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--border); font-size: 13.5px; color: var(--muted); word-break: break-all; display: none; }
.result-box.show { display: block; }
.empty { color: var(--muted); font-size: 13.5px; text-align: center; padding: 26px 0; }

/* 管理后台 */
.admin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin: 22px 0; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.stat .num { font-size: 28px; font-weight: 800; }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 4px; }
.ua-cell { max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
.badge-role-admin { background: rgba(56, 189, 248, 0.14); color: #7dd3fc; }

/* UA 卡片（管理后台点击查看） */
.ua-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 8px; font-size: 12.5px; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--muted);
  font-family: inherit; max-width: 190px; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; transition: all 0.15s;
}
.ua-chip:hover { border-color: var(--accent); color: var(--accent); background: rgba(16, 185, 129, 0.08); }

/* 弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: none; align-items: center; justify-content: center; z-index: 100; }
.modal-mask.show { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; max-width: 420px; width: 90%; }
.modal h3 { margin-bottom: 10px; }
.modal .new-pw { background: var(--panel-2); border: 1px dashed var(--accent); border-radius: 10px; padding: 12px; font-size: 18px; font-weight: 700; text-align: center; color: #34d399; margin: 14px 0; user-select: all; }
.modal .ua-text {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; font-size: 13px; line-height: 1.7; color: var(--text);
  word-break: break-all; user-select: all; margin: 14px 0; max-height: 200px; overflow: auto;
}
.modal .actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }