:root {
  --bg: #0d1117;
  --bg-soft: #151b24;
  --panel: #161d28;
  --panel-2: #1c2533;
  --border: #263243;
  --ink: #e7edf5;
  --ink-soft: #9fb0c3;
  --ink-mute: #6b7c91;
  --accent: #3b82f6;
  --accent-2: #22d3ee;
  --good: #34d399;
  --warn: #fbbf24;
  --bad: #f87171;
  --base-tag: #8b5cf6;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #14233a 0%, var(--bg) 55%) no-repeat, var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* topbar */
.topbar { border-bottom: 1px solid var(--border); background: rgba(13,17,23,.7); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 10; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.brand-mark { color: var(--accent-2); font-size: 20px; }
.brand-name { letter-spacing: .3px; }
.brand-tag { color: var(--ink-mute); font-size: 13px; }

/* hero */
.hero { padding: 42px 0 18px; max-width: 820px; }
.hero h1 { font-size: clamp(26px, 4.4vw, 40px); line-height: 1.2; margin: 0 0 14px; letter-spacing: -.5px; }
.lede { color: var(--ink-soft); font-size: 16px; margin: 0; }
.lede strong { color: var(--ink); }

/* layout */
.layout { display: grid; grid-template-columns: 1fr 1.15fr; gap: 22px; align-items: start; margin-top: 14px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }

/* form */
.form-panel { padding: 22px; position: sticky; top: 74px; }
.group { border: none; margin: 0 0 18px; padding: 0; }
.group legend { font-size: 13px; font-weight: 600; color: var(--ink-soft); padding: 0; margin-bottom: 9px; }
.hint { color: var(--ink-mute); font-weight: 400; font-size: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.chip span {
  display: inline-block; padding: 7px 13px; border: 1px solid var(--border);
  border-radius: 999px; font-size: 13.5px; color: var(--ink-soft);
  background: var(--panel-2); transition: all .15s ease; user-select: none;
}
.chip:hover span { border-color: #3a4a60; color: var(--ink); }
.chip input:checked + span { background: rgba(59,130,246,.16); border-color: var(--accent); color: #cfe2ff; }
.multi .chip input:checked + span { background: rgba(34,211,238,.14); border-color: var(--accent-2); color: #c8f4fb; }

.actions { display: flex; gap: 10px; margin-top: 22px; }
.btn { cursor: pointer; border: 1px solid var(--border); border-radius: 10px; padding: 11px 18px; font-size: 14.5px; font-weight: 600; transition: all .15s ease; font-family: inherit; }
.btn-primary { background: linear-gradient(135deg, var(--accent), #2563eb); border-color: transparent; color: #fff; flex: 1; }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { color: var(--ink); border-color: #3a4a60; }
.btn.small { padding: 6px 12px; font-size: 12.5px; }
.disclaimer { color: var(--ink-mute); font-size: 11.5px; margin: 14px 0 0; }

/* result */
.result-panel { padding: 22px; min-height: 320px; }
.result-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: var(--ink-mute); padding: 60px 20px; height: 100%; }
.empty-icon { font-size: 44px; color: #2a3a52; margin-bottom: 14px; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.result-head h2 { font-size: 19px; margin: 0; }
.profile-line { color: var(--ink-soft); font-size: 13.5px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 13px; margin: 12px 0 6px; }
.sec-title { font-size: 14px; color: var(--accent-2); margin: 22px 0 11px; letter-spacing: .3px; text-transform: none; border-left: 3px solid var(--accent-2); padding-left: 9px; }

/* priority list */
.priority-list { display: flex; flex-direction: column; gap: 9px; }
.prio-row { display: grid; grid-template-columns: 30px 1fr auto; gap: 12px; align-items: start; background: var(--panel-2); border: 1px solid var(--border); border-radius: 11px; padding: 12px 14px; }
.prio-rank { font-size: 17px; font-weight: 700; color: var(--ink-mute); text-align: center; line-height: 1.4; }
.prio-row:nth-child(1) .prio-rank, .prio-row:nth-child(2) .prio-rank, .prio-row:nth-child(3) .prio-rank { color: var(--accent-2); }
.prio-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.prio-name { font-weight: 600; font-size: 15px; }
.prio-desc { color: var(--ink-soft); font-size: 12.5px; margin: 3px 0 7px; }
.prio-bar { height: 6px; background: #0e151f; border-radius: 999px; overflow: hidden; }
.prio-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 999px; }
.prio-score { font-size: 17px; font-weight: 700; color: var(--ink); align-self: center; }
.dep { display: inline-block; margin-top: 7px; font-size: 11.5px; color: var(--ink-mute); }
.dep-none { color: #4d6280; }
.tag { font-size: 10.5px; padding: 2px 7px; border-radius: 6px; font-weight: 600; }
.tag-base { background: rgba(139,92,246,.18); color: #c4b5fd; border: 1px solid rgba(139,92,246,.4); }
.phase-pill { font-size: 11px; padding: 2px 8px; border-radius: 999px; font-weight: 600; margin-left: auto; }
.phase-1 { background: rgba(248,113,113,.15); color: #fca5a5; }
.phase-2 { background: rgba(251,191,36,.15); color: #fcd34d; }
.phase-3 { background: rgba(52,211,153,.15); color: #6ee7b7; }

/* roadmap */
.roadmap { display: flex; flex-direction: column; gap: 11px; }
.rm-phase { background: var(--panel-2); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 11px; padding: 13px 15px; }
.rm-tag { font-weight: 700; font-size: 14px; margin-bottom: 4px; }
.rm-goal { color: var(--ink-soft); font-size: 12.5px; margin-bottom: 9px; }
.rm-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.rm-chip { font-size: 12.5px; padding: 4px 11px; background: rgba(59,130,246,.12); border: 1px solid rgba(59,130,246,.35); border-radius: 999px; color: #cfe2ff; }

/* risks */
.risk-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 9px; }
.risk-list li { background: var(--panel-2); border: 1px solid var(--border); border-radius: 10px; padding: 11px 13px; font-size: 13px; color: var(--ink-soft); position: relative; padding-left: 13px; }
.risk-lvl { display: inline-block; font-size: 11px; font-weight: 700; padding: 1px 8px; border-radius: 6px; margin-right: 8px; vertical-align: middle; }
.risk-high { border-left: 3px solid var(--bad); }
.risk-high .risk-lvl { background: rgba(248,113,113,.18); color: #fca5a5; }
.risk-mid { border-left: 3px solid var(--warn); }
.risk-mid .risk-lvl { background: rgba(251,191,36,.18); color: #fcd34d; }
.risk-low { border-left: 3px solid var(--good); }
.risk-low .risk-lvl { background: rgba(52,211,153,.18); color: #6ee7b7; }

/* method */
.method { margin: 40px 0 30px; background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 26px; }
.method h3 { margin: 0 0 14px; font-size: 16px; }
.method ul { margin: 0; padding-left: 20px; color: var(--ink-soft); font-size: 13.5px; }
.method li { margin-bottom: 8px; }
.method strong { color: var(--ink); }

/* footer */
.footer { border-top: 1px solid var(--border); margin-top: 30px; padding: 22px 0 40px; }
.footer p { color: var(--ink-mute); font-size: 12.5px; text-align: center; margin: 0; }

@media (max-width: 880px) {
  .layout { grid-template-columns: 1fr; }
  .form-panel { position: static; }
  .hero { padding: 30px 0 12px; }
}