/* ===== shena数据评估 门户 · 全局样式（暗色玻璃态科技风，对齐 shenaai.cc 设计系统）===== */
:root {
  --bg-dark: #020617;
  --bg-light: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.72);
  --border: rgba(148, 163, 184, 0.16);
  --border-strong: rgba(56, 189, 248, 0.35);
  --accent-blue: #38bdf8;
  --accent-gold: #fbbf24;
  --accent-purple: #818cf8;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --ok: #34d399;
  --danger: #f87171;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 16px;
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  /* 科技风渐层光晕背景 */
  background-image:
    radial-gradient(60rem 40rem at 15% -10%, rgba(56, 189, 248, 0.14), transparent 60%),
    radial-gradient(50rem 40rem at 110% 10%, rgba(129, 140, 248, 0.12), transparent 55%);
  background-attachment: fixed;
}

h1, h2, h3, .brand { font-family: 'Outfit', 'Inter', sans-serif; letter-spacing: -0.01em; }
a { color: var(--accent-blue); text-decoration: none; transition: color 0.3s var(--ease); }
a:hover { color: #7dd3fc; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---- 顶栏 ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(2, 6, 23, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 22px; height: 64px; }
.nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text-primary); }
.nav .brand .gem { color: var(--accent-gold); font-size: 20px; }
.nav .spacer { flex: 1; }
.nav a.navlink { color: var(--text-secondary); font-size: 14px; font-weight: 500; }
.nav a.navlink:hover, .nav a.navlink.active { color: var(--text-primary); }
.nav .user-chip { font-size: 13px; color: var(--text-secondary); }
@media (max-width: 820px) { .nav a.navlink { display: none; } }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 12px; font-size: 14px; font-weight: 600;
  border: 1px solid var(--border); background: rgba(148,163,184,0.06); color: var(--text-primary);
  cursor: pointer; transition: all 0.3s var(--ease);
}
.btn:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple)); border: none; color: #06121f; }
.btn-primary:hover { box-shadow: 0 8px 26px rgba(56,189,248,0.35); color: #06121f; }
.btn-gold { background: linear-gradient(135deg, var(--accent-gold), #f59e0b); border: none; color: #241a02; }
.btn-ghost { background: transparent; }
.btn-danger { border-color: rgba(248,113,113,0.4); color: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 返回主页浮动按钮 */
.back-home {
  position: fixed; left: 20px; bottom: 22px; z-index: 40;
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

/* ---- 卡片/玻璃态 ---- */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  backdrop-filter: blur(10px);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.card:hover { border-color: var(--border-strong); }
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; } }

/* ---- Hero ---- */
.hero { text-align: center; padding: 84px 0 56px; }
.hero .eyebrow { color: var(--accent-blue); font-weight: 600; font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; }
.hero h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 800; margin: 16px 0; line-height: 1.1; }
.hero h1 .grad { background: linear-gradient(120deg, var(--accent-blue), var(--accent-purple), var(--accent-gold)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p.sub { color: var(--text-secondary); font-size: 18px; max-width: 680px; margin: 0 auto 28px; }
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---- 分区标题 ---- */
.section { padding: 56px 0; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; }
.section-head p { color: var(--text-secondary); margin-top: 10px; }

.feature-ico { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 12px; font-size: 22px; background: rgba(56,189,248,0.12); margin-bottom: 14px; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 14px; }
.muted { color: var(--text-secondary); }
.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid var(--border); }
.pill-blue { color: var(--accent-blue); border-color: var(--border-strong); }
.pill-gold { color: var(--accent-gold); border-color: rgba(251,191,36,0.4); }

/* ---- 表格（管理页）---- */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
table.tbl th { color: var(--text-secondary); font-weight: 600; }
table.tbl tr:hover td { background: rgba(148,163,184,0.05); }

/* ---- 表单 ---- */
.form { max-width: 420px; margin: 0 auto; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.field input, .field select {
  width: 100%; padding: 12px 14px; border-radius: 12px; font-size: 14px;
  background: rgba(2,6,23,0.6); border: 1px solid var(--border); color: var(--text-primary);
  transition: border-color 0.3s var(--ease);
}
.field input:focus, .field select:focus { outline: none; border-color: var(--accent-blue); }
.notice { padding: 12px 14px; border-radius: 12px; font-size: 13px; margin: 12px 0; }
.notice-err { background: rgba(248,113,113,0.1); color: var(--danger); border: 1px solid rgba(248,113,113,0.3); }
.notice-ok { background: rgba(52,211,153,0.1); color: var(--ok); border: 1px solid rgba(52,211,153,0.3); }
.notice-warn { background: rgba(251,191,36,0.08); color: var(--accent-gold); border: 1px solid rgba(251,191,36,0.3); }

/* ---- 终端 ---- */
.term-box { background: #01040c; border: 1px solid var(--border); border-radius: 12px; padding: 14px; font-family: 'Consolas','Courier New',monospace; font-size: 13px; height: 60vh; overflow-y: auto; white-space: pre-wrap; color: #cbd5e1; }
.term-input { display: flex; gap: 10px; margin-top: 12px; }
.term-input input { flex: 1; font-family: 'Consolas',monospace; }

/* ---- 页脚 ---- */
.site-footer { border-top: 1px solid var(--border); margin-top: 60px; padding: 30px 0; color: var(--text-secondary); font-size: 13px; }
.site-footer .row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* 页面进入动画 */
.fade-up { animation: fadeUp 0.6s var(--ease) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.steps { counter-reset: s; }
.step { display: flex; gap: 14px; margin-bottom: 18px; }
.step .n { flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: rgba(56,189,248,0.14); color: var(--accent-blue); font-weight: 700; }

/* Accessibility and responsive navigation */
.nav-menu { display: flex; align-items: center; gap: 22px; flex: 1; }
.nav-toggle { display: none; margin-left: auto; padding: 8px 12px; color: var(--text-primary); background: transparent; border: 1px solid var(--border); border-radius: 10px; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 100; padding: 10px 14px; background: var(--accent-blue); color: #020617; border-radius: 8px; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--accent-gold); outline-offset: 3px; }
.hash-value { overflow-wrap: anywhere; }
.card-actions { margin-top: 14px; }
.legal-meta { display: grid; grid-template-columns: minmax(130px, 180px) 1fr; gap: 10px 18px; margin-top: 16px; }
.legal-meta dt { color: var(--text-secondary); }
.legal-meta dd { overflow-wrap: anywhere; }
.legal-section { margin-top: 20px; }
.legal-section h2 { margin-bottom: 12px; font-size: 20px; }

@media (max-width: 820px) {
  .nav { position: relative; gap: 12px; }
  .nav-toggle { display: inline-flex; }
  .nav-menu { display: none; position: absolute; top: 64px; left: -24px; right: -24px; padding: 16px 24px 22px; flex-direction: column; align-items: stretch; gap: 10px; background: rgba(2, 6, 23, 0.98); border-bottom: 1px solid var(--border); }
  .nav-menu.open { display: flex; }
  .nav a.navlink { display: block; padding: 8px 0; }
  .nav-menu .spacer { display: none; }
  .legal-meta { grid-template-columns: 1fr; gap: 4px; }
  .legal-meta dd { margin-bottom: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* 平台家族栏（项目栏）：接入 ShenaAI 平台家族的顶部窄条 */
.family-bar { background: linear-gradient(90deg, rgba(56,189,248,0.10), rgba(129,140,248,0.10)); border-bottom: 1px solid var(--border); font-size: 13px; }
.family-inner { display: flex; align-items: center; gap: 16px; height: 38px; }
.family-bar .family-label { color: var(--accent-gold); font-weight: 700; letter-spacing: 0.02em; }
.family-bar .family-link { color: var(--text-secondary); font-weight: 500; }
.family-bar .family-link:hover { color: var(--text-primary); }
.family-bar .family-link.active { color: var(--accent-blue); font-weight: 700; }
.family-bar .spacer { flex: 1; }
.family-bar .family-tag { color: var(--text-secondary); opacity: 0.8; }

/* 首页快捷工具条 */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 4px; }
.toolbar .tool { display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-card); color: var(--text-secondary); font-size: 14px; font-weight: 500; transition: all 0.3s var(--ease); }
.toolbar .tool:hover { color: var(--text-primary); border-color: var(--border-strong); }
.toolbar .tool .ico { font-size: 16px; }
.plan-cell { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

@media (max-width: 820px) {
  .family-inner { gap: 12px; overflow-x: auto; }
  .family-bar .family-tag { display: none; }
}