/* ============ 设计 token（烟熏炭火 · 腊肉作坊） ============ */
:root {
  --bg: #17130e;
  --surface: #211a13;
  --surface-2: #2a2118;
  --surface-3: #32281c;
  --border: #3c2f20;
  --border-soft: #2c241a;
  --text: #f2e9dc;
  --text-dim: #b8a58b;
  --text-faint: #8a7a64;
  --accent: #d97a3c;        /* 烟熏琥珀橙 — 唯一强调 */
  --accent-soft: #5c3a22;
  --ember: #b5502f;         /* 深腊肉红褐 */
  --good: #a3c19b;
  --warn: #e2b368;
  --shadow: 0 14px 40px rgba(0,0,0,.45);
  --radius: 14px;
  --font-display: "Noto Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

/* ============ 基础 ============ */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
}
.serif { font-family: var(--font-display); }

/* 烟熏颗粒纹理背景 */
.smoke {
  position: fixed; inset: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(217,122,60,.10), transparent 60%),
    radial-gradient(900px 700px at 10% 110%, rgba(176,80,47,.12), transparent 55%),
    radial-gradient(3px 3px at 20% 30%, rgba(242,233,220,.04), transparent 60%),
    radial-gradient(2px 2px at 70% 60%, rgba(242,233,220,.05), transparent 60%),
    radial-gradient(2px 2px at 45% 85%, rgba(242,233,220,.03), transparent 60%),
    radial-gradient(4px 4px at 90% 20%, rgba(242,233,220,.04), transparent 70%);
  pointer-events: none; z-index: 0;
}

/* ============ 顶栏 ============ */
.mast { position: relative; z-index: 1; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, rgba(50,40,28,.35), transparent); }
.mast-inner {
  max-width: 1240px; margin: 0 auto; padding: 30px 24px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 50%;
  color: var(--accent);
  background: radial-gradient(circle at 30% 30%, var(--surface-3), var(--surface));
  border: 1px solid var(--border);
  box-shadow: inset 0 0 12px rgba(217,122,60,.15), var(--shadow);
}
.brand h1 { margin: 0; font-size: 26px; font-weight: 700; letter-spacing: .5px; }
.sub { margin: 2px 0 0; color: var(--text-dim); font-size: 13.5px; }
.sub br { display: none; }

.toolbar { display: flex; gap: 10px; flex-wrap: wrap; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
  font-family: var(--font-body); font-size: 13.5px; font-weight: 500;
  cursor: pointer; transition: transform .08s ease, border-color .15s, background .15s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #20150c; font-weight: 600; }
.btn-accent:hover { background: #e2864b; border-color: #e2864b; }
.btn-danger { background: transparent; border-color: transparent; color: var(--text-dim); }
.btn-danger:hover { color: #e07b5a; border-color: transparent; }

/* ============ 主布局 ============ */
.layout {
  position: relative; z-index: 1;
  max-width: 1240px; margin: 0 auto; padding: 24px;
  display: grid; grid-template-columns: minmax(360px, 5fr) minmax(380px, 6fr);
  gap: 22px; align-items: start;
}
.panel {
  background: linear-gradient(180deg, var(--surface), var(--bg));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 16px 20px; border-bottom: 1px solid var(--border-soft);
}
.panel-title { margin: 0; font-size: 18px; font-weight: 600; }
.panel-hint { color: var(--text-faint); font-size: 12.5px; }

/* ============ 品类参数卡 ============ */
.config-list { display: flex; flex-direction: column; gap: 14px; padding: 16px; }
.spec-card {
  border: 1px solid var(--border-soft); border-radius: 12px;
  background: var(--surface-2); overflow: hidden;
}
.spec-head {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; border-bottom: 1px solid var(--border-soft);
}
.spec-name {
  flex: 1; background: transparent; border: none; border-bottom: 1px dashed transparent;
  color: var(--text); font-family: var(--font-display); font-size: 15px; font-weight: 600;
  padding: 2px 0; outline: none; transition: border-color .15s;
}
.spec-name:focus { border-bottom-color: var(--accent); }
.spec-badge { font-size: 11px; color: var(--text-faint); letter-spacing: .5px; }

.spec-body { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; padding: 14px; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 12.5px; color: var(--text-dim); display: flex; justify-content: space-between; }
.field label .unit { color: var(--text-faint); font-size: 11.5px; }
.input-row { display: flex; align-items: center; gap: 10px; }
.input-row input[type="range"] { flex: 1; }
input[type="number"] {
  width: 88px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text);
  font-family: var(--font-body); font-size: 13.5px; font-weight: 500; text-align: right; outline: none;
}
input[type="number"]:focus { border-color: var(--accent); }

/* 滑块 —— “火候条” */
input[type="range"] {
  -webkit-appearance: none; appearance: none; height: 5px; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent) var(--fill,0%), var(--border) var(--fill,0%));
  outline: none; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 2px solid #ffd9b8; box-shadow: 0 2px 6px rgba(0,0,0,.4);
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%; background: var(--accent);
  border: 2px solid #ffd9b8; box-shadow: 0 2px 6px rgba(0,0,0,.4);
}

.spec-foot {
  display: flex; justify-content: flex-end; gap: 8px;
  padding: 8px 14px; border-top: 1px solid var(--border-soft);
  background: rgba(0,0,0,.12);
}

/* ============ 结果卡 ============ */
.result-list { display: flex; flex-direction: column; gap: 14px; padding: 16px; }
.result-card { border: 1px solid var(--border-soft); border-radius: 12px; background: var(--surface-2); overflow: hidden; }
.result-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 16px; border-bottom: 1px solid var(--border-soft);
}
.result-name { font-family: var(--font-display); font-size: 15px; font-weight: 600; }
.result-flag { font-size: 11.5px; color: var(--warn); background: rgba(226,179,104,.12); padding: 2px 8px; border-radius: 20px; }

.metric-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 14px 16px;
}
.metric {
  background: var(--surface); border: 1px solid var(--border-soft); border-radius: 10px;
  padding: 10px 12px;
}
.metric .k { font-size: 11.5px; color: var(--text-faint); }
.metric .v { font-size: 19px; font-weight: 600; font-family: var(--font-body); letter-spacing: .3px; margin-top: 2px; }
.metric .v em { font-style: normal; font-size: 12px; color: var(--text-dim); font-weight: 500; }
.metric.hero { background: linear-gradient(160deg, var(--accent-soft), var(--surface)); border-color: var(--accent); }
.metric.hero .v { color: var(--accent); }
.metric.good .v { color: var(--good); }
.metric.acc { grid-column: span 3; display: flex; justify-content: space-between; align-items: center; }
.metric.acc .v { font-size: 14px; }

.breakdown {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  padding: 4px 16px 14px;
}
.breakdown div { text-align: center; }
.breakdown .bk { font-size: 11px; color: var(--text-faint); }
.breakdown .bv { font-size: 13px; font-weight: 600; margin-top: 2px; }

/* ============ 汇总对比 ============ */
.summary { padding: 4px 16px 16px; }
.summary-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.summary-table th, .summary-table td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--border-soft); }
.summary-table th { color: var(--text-faint); font-weight: 500; text-align: right; }
.summary-table th:first-child, .summary-table td:first-child { text-align: left; }
.summary-table td:last-child { color: var(--accent); font-weight: 600; }

/* ============ 页脚 / toast ============ */
.foot {
  position: relative; z-index: 1; max-width: 1240px; margin: 0 auto;
  padding: 6px 24px 40px; color: var(--text-faint); font-size: 12px; text-align: center;
}
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--surface-3); border: 1px solid var(--accent); color: var(--text);
  padding: 10px 18px; border-radius: 10px; font-size: 13.5px;
  opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; z-index: 10;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.empty {
  color: var(--text-faint); text-align: center; padding: 40px 20px; font-size: 14px;
}

/* ============ 响应式 ============ */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .mast-inner { padding: 20px 16px; }
  .brand h1 { font-size: 21px; }
  .sub br { display: inline; }
  .layout { padding: 16px; }
  .spec-body { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric.acc { grid-column: span 2; }
  .breakdown { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}