/* ============================================================
   AquaRAS 工艺设计软件 — Premium Tech UI 样式系统
   玻璃拟态 / 暗-亮-系统主题 / 磁吸微交互 / 科技感背景
   配色：冷调青→靛→翠，协调统一；字体清晰，数字等宽
   ============================================================ */

:root {
  --bg: #eef2f9;
  --bg-grad-1: #e8eefb;
  --bg-grad-2: #edf0fb;
  --surface: rgba(255, 255, 255, 0.66);
  --surface-2: rgba(255, 255, 255, 0.84);
  --border: rgba(15, 23, 42, 0.09);
  --border-strong: rgba(15, 23, 42, 0.16);
  --text: #0f172a;
  --text-soft: #475569;
  --text-faint: #94a3b8;
  --brand: #0ea5e9;            /* sky */
  --brand-2: #6366f1;          /* indigo */
  --brand-soft: rgba(14, 165, 233, 0.14);
  --accent: #14b8a6;           /* teal */
  --accent-2: #2dd4bf;
  --danger: #f43f5e;
  --pipe: #94a3b8;             /* 工艺管线基色 */
  --grid: rgba(120, 140, 170, 0.07);
  --input-bg: #ffffff;
  --card-shadow: 0 12px 44px rgba(15, 23, 42, 0.10);
  --glow: 0 10px 30px rgba(14, 165, 233, 0.18);
  --radius: 20px;
  --radius-sm: 13px;
  --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-num: "JetBrains Mono", "Fira Code", ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;
}

[data-theme="dark"] {
  --bg: #060a14;
  --bg-grad-1: #0a1428;
  --bg-grad-2: #0c1230;
  --surface: rgba(17, 27, 46, 0.62);
  --surface-2: rgba(23, 36, 60, 0.80);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #eaf0fb;
  --text-soft: #aab6c8;
  --text-faint: #6b7a91;
  --brand: #38bdf8;
  --brand-2: #818cf8;
  --brand-soft: rgba(56, 189, 248, 0.18);
  --accent: #2dd4bf;
  --accent-2: #34d399;
  --danger: #fb7185;
  --pipe: #7c8aa3;
  --grid: rgba(148, 163, 184, 0.09);
  --input-bg: rgba(11, 18, 32, 0.60);
  --card-shadow: 0 20px 54px rgba(0, 0, 0, 0.50);
  --glow: 0 12px 34px rgba(56, 189, 248, 0.22);
}

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

html, body { height: 100%; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1100px 620px at 85% -6%, rgba(56, 189, 248, 0.10), transparent 55%),
    radial-gradient(940px 520px at -4% 4%, rgba(129, 140, 248, 0.10), transparent 55%),
    radial-gradient(900px 600px at 50% 120%, rgba(20, 184, 166, 0.07), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  font-size: 15px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color 0.45s ease, color 0.45s ease;
  min-height: 100vh;
}
/* 科技感网格背景（顶部聚光淡出） */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 78% 60% at 50% -4%, #000 28%, transparent 82%);
  mask-image: radial-gradient(ellipse 78% 60% at 50% -4%, #000 28%, transparent 82%);
}

.wrap { max-width: 1240px; margin: 0 auto; padding: 30px 22px 64px; }

/* ---------- Header ---------- */
.app-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap; margin-bottom: 24px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand .logo {
  width: 50px; height: 50px; border-radius: 15px;
  display: grid; place-items: center; font-size: 25px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 10px 30px var(--brand-soft), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.brand h1 { font-size: 22px; font-weight: 800; letter-spacing: -0.025em; line-height: 1.15; }
.brand p { font-size: 12.5px; color: var(--text-soft); margin-top: 3px; letter-spacing: 0.005em; text-align: justify; }

.header-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- Theme toggle ---------- */
.theme-toggle {
  display: inline-flex; background: var(--surface); border: 1px solid var(--border);
  border-radius: 999px; padding: 4px; gap: 2px; backdrop-filter: blur(14px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.theme-toggle button {
  border: none; background: transparent; color: var(--text-soft);
  padding: 7px 12px; border-radius: 999px; cursor: pointer; font-size: 13px;
  font-weight: 600; transition: all 0.25s ease; display: flex; align-items: center; gap: 6px;
}
.theme-toggle button.active {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; box-shadow: 0 6px 16px var(--brand-soft);
}

/* ---------- Glass card ---------- */
.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(22px) saturate(170%);
  -webkit-backdrop-filter: blur(22px) saturate(170%);
  box-shadow: var(--card-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.tab {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-soft); padding: 10px 18px; border-radius: 999px;
  cursor: pointer; font-size: 14px; font-weight: 600; transition: all 0.25s ease;
  backdrop-filter: blur(10px); display: flex; align-items: center; gap: 8px;
}
.tab:hover { color: var(--text); transform: translateY(-1px); border-color: var(--border-strong); }
.tab.active {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; border-color: transparent;
  box-shadow: 0 8px 22px var(--brand-soft);
}

/* ---------- Panels ---------- */
.panel { display: none; animation: fade 0.45s ease; }
.panel.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- Input form ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 26px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 700; color: var(--text-soft); letter-spacing: 0.01em; }
.field .hint { font-size: 11.5px; color: var(--text-faint); }
.field input, .field select {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--surface-2);
  color: var(--text); font-size: 15px; font-family: inherit; transition: all 0.2s ease;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}
.field input:focus, .field select:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft), inset 0 1px 2px rgba(15, 23, 42, 0.04);
}
.field .unit { color: var(--text-faint); font-size: 12px; }

/* 地区全年平均气温下拉选择器 */
.temp-select {
  width: 100%; max-width: 380px; padding: 11px 14px; font-size: 14px; font-family: inherit;
  font-weight: 600; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text); cursor: pointer;
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.temp-select:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.temp-row { display: flex; gap: 10px; align-items: stretch; flex-wrap: wrap; }
.temp-row .temp-select { flex: 1 1 240px; max-width: none; }
.temp-input {
  flex: 1 1 140px; min-width: 120px; padding: 11px 14px; font-size: 14px; font-family: inherit;
  font-weight: 600; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.temp-input:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-soft);
}
.temp-input::placeholder { color: var(--text-dim); font-weight: 500; }

.btn-primary {
  grid-column: 1 / -1; justify-self: start; margin-top: 4px;
  border: none; cursor: pointer; font-family: inherit;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; font-weight: 700; font-size: 15px; letter-spacing: 0.01em;
  padding: 14px 30px; border-radius: 999px;
  box-shadow: 0 10px 28px var(--brand-soft);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
}
.btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 14px 34px rgba(14, 165, 233, 0.34); }
.btn-primary:active { transform: translateY(0) scale(0.99); }
.btn-lux {
  border: 1px solid rgba(255, 255, 255, 0.18); cursor: pointer; font-family: inherit;
  background: rgba(255, 255, 255, 0.06); backdrop-filter: blur(12px);
  color: var(--text); font-weight: 700; font-size: 14px; letter-spacing: 0.01em;
  padding: 11px 24px; border-radius: 999px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), background 0.22s ease, box-shadow 0.22s ease;
}
.btn-lux:hover { transform: translateY(-2px) scale(1.02); background: rgba(56, 189, 248, 0.16); box-shadow: 0 12px 30px rgba(56, 189, 248, 0.28); }
.btn-lux:active { transform: translateY(0) scale(0.99); }
.btn-lux:disabled { opacity: 0.55; cursor: progress; transform: none; }
.btn-price-sn {
  border: 1px solid rgba(56, 189, 248, 0.32); cursor: pointer; font-family: inherit;
  background: rgba(56, 189, 248, 0.08); color: var(--text);
  font-weight: 700; font-size: 13px; letter-spacing: 0.01em;
  padding: 8px 16px; border-radius: 999px;
  transition: transform 0.2s cubic-bezier(0.16,1,0.3,1), background 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.btn-price-sn:hover { transform: translateY(-1px); background: rgba(56, 189, 248, 0.18); box-shadow: 0 8px 20px rgba(56, 189, 248, 0.22); }
.btn-price-sn:active { transform: translateY(0) scale(0.98); }
.btn-price-sn.active { background: rgba(56, 189, 248, 0.26); border-color: rgba(56, 189, 248, 0.7); box-shadow: 0 8px 22px rgba(56, 189, 248, 0.32); }
.price-sn tr.up td { color: #34d399; }
.price-sn tr.down td { color: #f87171; }
.price-sn tr.ps-base td { font-weight: 700; color: var(--text); }
.price-sn tr.focus td { background: rgba(56, 189, 248, 0.14); }
.price-sn tr .d { font-size: 11.5px; opacity: 0.92; }

/* ---------- Result metric cards ---------- */
.section-title { position: relative; font-size: 17px; font-weight: 700; margin: 28px 0 14px; padding: 0 26px 0 36px; display: flex; align-items: center; gap: 10px; letter-spacing: 0.02em; }
.section-title::before {
  content: ""; position: absolute; left: 26px; top: 0; width: 5px; height: 20px; border-radius: 3px;
  background: linear-gradient(var(--brand), var(--brand-2));
  box-shadow: 0 0 12px var(--brand-soft);
}
.section-title .badge {
  font-size: 11px; font-weight: 700; color: var(--brand);
  background: var(--brand-soft); padding: 3px 10px; border-radius: 999px; letter-spacing: 0.03em;
}

.metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; padding: 0 26px; }
.metric {
  position: relative; padding: 18px 18px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface); overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}
.metric::before {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--brand), var(--brand-2)); opacity: 0.55;
}
.metric:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(15, 23, 42, 0.14), 0 0 0 1px var(--brand-soft); border-color: var(--border-strong); }
.metric .k { font-size: 13px; color: var(--text-soft); font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; }
.metric .v {
  font-family: var(--font-num); font-size: 26px; font-weight: 600; letter-spacing: -0.01em;
  margin-top: 8px; font-variant-numeric: tabular-nums; line-height: 1.15;
}
.metric .v.v-nowrap { white-space: nowrap; word-break: keep-all; }
.metric .v.v-wrap { white-space: normal; word-break: break-word; overflow-wrap: anywhere; }
.metric .v small { font-family: var(--font); font-size: 13px; font-weight: 500; color: var(--text-faint); margin-left: 5px; }
.metric .sub { font-size: 12px; color: var(--text-faint); margin-top: 5px; line-height: 1.45; }
.metric.accent .v { color: var(--accent); }
.metric.brand .v { color: var(--brand); }

/* ---------- PFD / P&ID 通用：SVG 文字清晰 + 字体统一 ---------- */
.pfd-svg text, .pid-svg text { font-family: var(--font); text-rendering: optimizeLegibility; }
.pfd-wrap { padding: 18px; overflow-x: auto; }
.pfd-svg { width: 100%; height: auto; min-width: 720px; }
.pfd-header { font-size: 17px; font-weight: 800; fill: var(--text); letter-spacing: -0.01em; }
.pfd-caption { font-size: 12.5px; fill: var(--text-soft); }
.pfd-title { font-size: 14px; font-weight: 700; fill: var(--text); text-anchor: middle; }
.pfd-sub { font-size: 11.5px; fill: var(--text-soft); text-anchor: middle; }
.pfd-box { fill: var(--surface-2); stroke: var(--border-strong); stroke-width: 1.6; transition: stroke-width .18s ease, stroke .18s ease; }
.pfd-node, .pid-node { transition: filter 0.22s ease; }
.pfd-node:hover { filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5)); }
.pfd-node:hover .pfd-box { stroke-width: 2.8; }
.pfd-node:hover .pfd-title { fill: var(--brand); }
.pfd-line { stroke: var(--pipe); stroke-width: 2.2; fill: none; }
.pfd-head { fill: var(--pipe); }
.pfd-return { stroke: var(--brand); stroke-dasharray: 6 5; }
.pfd-return.pfd-head { fill: var(--brand); }
.pfd-flow-label { font-size: 11px; fill: var(--text-faint); text-anchor: middle; paint-order: stroke; stroke: var(--bg); stroke-width: 3.4px; stroke-linejoin: round; }
.pfd-flow-label.side { text-anchor: start; fill: var(--text-soft); font-weight: 600; }
/* 协调的类别色（冷调青→靛→翠，污泥用琥珀语义色） */
.pfd-node.c1 .pfd-box { stroke: #38bdf8; }
.pfd-node.c2 .pfd-box { stroke: #22d3ee; }
.pfd-node.c3 .pfd-box { stroke: #34d399; }
.pfd-node.c4 .pfd-box { stroke: #818cf8; }
.pfd-node.c5 .pfd-box { stroke: #a78bfa; }
.pfd-node.c6 .pfd-box { stroke: #2dd4bf; }
.pfd-node.c7 .pfd-box { stroke: #fb923c; }
.pfd-node.c8 .pfd-box { stroke: #60a5fa; }
.pfd-node.c9 .pfd-box { stroke: #f472b6; }
.pfd-node.c10 .pfd-box { stroke: #fbbf24; }
.pfd-node.c11 .pfd-box { stroke: #fb923c; }
.pfd-arrow.pfd-denit .pfd-line, .pfd-arrow.pfd-denit .pfd-head { stroke: #f472b6; fill: #f472b6; }
.pfd-legend .pfd-sub { fill: var(--text-soft); text-anchor: start; }
.pfd-arrow.pfd-makeup .pfd-line, .pfd-arrow.pfd-makeup .pfd-head { stroke: #2dd4bf; fill: #2dd4bf; }
.pfd-arrow.pfd-sludge .pfd-line, .pfd-arrow.pfd-sludge .pfd-head { stroke: #fb923c; fill: #fb923c; }
/* 比水耗胶囊 */
.pfd-swu { fill: var(--brand-soft); stroke: var(--brand); stroke-width: 1; }
.pfd-swu-dot { fill: var(--brand); }
.pfd-swu-txt { font-size: 12px; font-weight: 700; fill: var(--brand); text-anchor: start; }

/* ---------- PFD ↔ P&ID 联动高亮 ---------- */
[data-key] { cursor: pointer; }
[data-key].linked .pid-box,
[data-key].linked .pfd-box { stroke: var(--brand); stroke-width: 3.6; }
[data-key].linked .pid-bubble { stroke: #ffffff; stroke-width: 2.6; }
[data-key].linked .pid-title,
[data-key].linked .pfd-title { fill: var(--brand); }
@keyframes linkFlash {
  0%   { filter: drop-shadow(0 0 0 rgba(56, 189, 248, 0)); }
  30%  { filter: drop-shadow(0 0 14px rgba(56, 189, 248, 0.95)); }
  60%  { filter: drop-shadow(0 0 5px rgba(56, 189, 248, 0.45)); }
  100% { filter: drop-shadow(0 0 9px rgba(56, 189, 248, 0.7)); }
}
[data-key].link-flash { animation: linkFlash 0.6s ease-in-out 3; }
.link-hint {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--text-soft);
  padding: 10px 4px 0;
}
.link-hint .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 8px var(--brand); }

/* ---------- 3D ---------- */
.model-toolbar { display: flex; gap: 10px; align-items: center; padding: 14px 18px; flex-wrap: wrap; }
.model-toolbar .spacer { flex: 1; }
#model3d { width: 100%; height: 540px; border-radius: 0 0 var(--radius) var(--radius); overflow: hidden; display: block; }
.toggle-btn {
  border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--text-soft);
  padding: 8px 16px; border-radius: 999px; cursor: pointer; font-weight: 600; font-size: 13px;
  transition: all 0.2s ease;
}
.toggle-btn:hover { color: var(--text); transform: translateY(-1px); }
.toggle-btn.on { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; border-color: transparent; }

/* 管线图层开关 */
.layer-toggles { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.layer-toggles label { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; color: var(--text-soft); cursor: pointer; user-select: none; }
.layer-toggles input { accent-color: var(--brand); width: 15px; height: 15px; }

/* 表单选项列表：每项卡片式横向排列，主标签下带小字体说明 */
.option-list { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 12px; padding: 4px 0 2px; }
.option-row { flex: 1 1 180px; display: flex; align-items: flex-start; gap: 8px; padding: 10px 12px; border: 1px solid var(--border-soft); border-radius: var(--radius-sm); background: var(--surface-2); cursor: pointer; user-select: none; transition: border-color 0.2s ease, background 0.2s ease; }
.option-row:hover { border-color: var(--brand-soft); background: var(--surface-3); }
.option-row input { accent-color: var(--brand); width: 15px; height: 15px; margin-top: 2px; flex-shrink: 0; }
.option-body { display: flex; flex-direction: column; gap: 2px; }
.option-main { font-size: 13px; font-weight: 600; color: var(--text); }
.option-desc { font-size: 11.5px; color: var(--text-faint); line-height: 1.45; }
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; box-shadow: 0 0 6px rgba(0, 0, 0, .25); }
.dot-water { background: #38bdf8; } .dot-makeup { background: #2dd4bf; }
.dot-gas { background: #34d399; } .dot-co2 { background: #94a3b8; }
.dot-sludge { background: #c2723a; } .dot-elec { background: #fbbf24; }

/* 3D 图例 */
.model-legend {
  position: absolute; left: 14px; bottom: 14px; z-index: 5; pointer-events: none;
  background: rgba(8, 14, 26, 0.72); backdrop-filter: blur(10px); color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 12px; padding: 10px 12px;
  font-size: 12px; max-width: 210px; line-height: 1.5;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}
.model-legend .ml-title { font-weight: 700; margin-bottom: 6px; font-size: 12.5px; color: var(--brand); }
.model-legend .ml-item { display: flex; align-items: center; gap: 7px; }
.model-legend .ml-sw { width: 12px; height: 12px; border-radius: 3px; flex: none; box-shadow: 0 0 5px rgba(0, 0, 0, .3); }
.model-legend .ml-note { margin-top: 6px; font-size: 11px; color: var(--text-faint); border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 5px; }

/* ---------- Scheme Library: data source / cloud sync ---------- */
.lib-source { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.lib-source > label { font-size: 13px; color: var(--text-soft); font-weight: 600; }
.lib-source .seg { display: inline-flex; gap: 6px; }
.lib-source .text-input {
  flex: 1; min-width: 220px; padding: 9px 12px; border-radius: 10px; font-size: 13px;
  background: var(--input-bg); color: var(--text); border: 1px solid var(--border);
  outline: none; transition: border-color .2s, box-shadow .2s;
}
.lib-source .text-input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.lib-source .text-input:disabled { opacity: .5; cursor: not-allowed; }
.lib-status { font-size: 12px; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.lib-status.muted { background: rgba(148, 163, 184, .16); color: var(--text-soft); }
.lib-status.ok { background: rgba(34, 197, 94, .16); color: #4ade80; }
.lib-status.warn { background: rgba(234, 179, 8, .18); color: #facc15; }
.src-tag { font-size: 10.5px; padding: 1px 7px; border-radius: 999px; margin-left: 4px; vertical-align: middle; }
.src-tag.cloud { background: rgba(56, 189, 248, .18); color: #38bdf8; }
.src-tag.local { background: rgba(148, 163, 184, .18); color: #cbd5e1; }
[data-theme="light"] .lib-status.muted { background: rgba(100, 116, 139, .14); color: var(--text-soft); }
[data-theme="light"] .src-tag.local { background: rgba(100, 116, 139, .16); color: #334155; }

/* ---------- Table (BOM / economics) ---------- */
.table-wrap { padding: 8px 0; overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; font-weight: 400; }
table.data th, table.data td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
table.data th { color: var(--text-soft); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.06em; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr:hover td { background: var(--brand-soft); }
table.data tfoot td { font-weight: 800; border-top: 2px solid var(--border-strong); }

/* ---------- Notes / callout ---------- */
.note {
  display: flex; gap: 12px; padding: 14px 18px; border-radius: var(--radius-sm);
  background: var(--brand-soft); border: 1px solid var(--brand-soft);
  font-size: 13.5px; color: var(--text-soft); line-height: 1.65;
  margin: 6px 26px 14px; text-align: justify;
}
.note b { color: var(--text); }
.note .ic { font-size: 18px; flex: 0 0 auto; }
/* 水质区下方元信息卡片：紧凑键值布局 */
.note.wq-meta { margin: 6px 26px 14px; padding: 14px 18px; align-items: flex-start; }
@media (max-width: 720px) {
  .note, .note.wq-meta { margin-left: 14px; margin-right: 14px; }
}
.note.wq-meta .note-body { flex: 1; min-width: 0; }
.note.wq-meta .note-title { font-weight: 700; font-size: 14px; color: var(--text); margin-bottom: 10px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.note.wq-meta .note-kvs { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.note.wq-meta .note-kv { display: flex; flex-direction: column; gap: 2px; min-width: 86px; }
.note.wq-meta .note-kv span { font-size: 12px; color: var(--text-faint); }
.note.wq-meta .note-kv b { font-size: 14px; color: var(--text); font-weight: 700; }
.note.wq-meta .note-kv small { font-size: 11.5px; color: var(--text-soft); }
.note.wq-meta .note-foot { margin-top: 10px; font-size: 12.5px; color: var(--text-soft); line-height: 1.55; }
@media (max-width: 720px) {
  .note.wq-meta .note-kv { min-width: 78px; }
}
/* 养殖池水力结构等说明的多行排版 */
.tk-title { font-weight: 700; color: var(--text); margin-bottom: 2px; }
.tk-line { margin: 7px 0; line-height: 1.65; overflow-wrap: anywhere; }
.tk-line:first-of-type { margin-top: 5px; }
/* 兜底：长文本/长数字不溢出容器 */
.note, .wq-note { overflow-wrap: anywhere; }
.note-warn { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.45); color: var(--text); }
.note-warn b { color: #f59e0b; }
/* 预算反算横幅 */
.budget-note.ok { background: rgba(16, 185, 129, 0.12); border-color: rgba(16, 185, 129, 0.45); color: var(--text); }
.budget-note.ok b { color: #10b981; }
.budget-note.fail { background: rgba(239, 68, 68, 0.12); border-color: rgba(239, 68, 68, 0.45); color: var(--text); }
.budget-note.fail b { color: #ef4444; }
.budget-note.hidden { display: none; }
.budget-note .sub { display: block; margin-top: 6px; font-size: 12.5px; color: var(--text-soft); }
.disabled-input { opacity: 0.5; cursor: not-allowed; }

/* ---------- Sobol 主因子分析 ---------- */
.sobol-card { margin: 14px 0; padding: 16px 18px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--card-shadow); }
.sobol-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.sobol-title { font-size: 15.5px; font-weight: 800; color: var(--text); letter-spacing: -0.01em; }
.sobol-unit { font-size: 12px; color: var(--text-faint); font-family: var(--font-num); }
.sobol-mean { font-size: 12.5px; color: var(--brand); font-family: var(--font-num); margin-left: auto; }
.sobol-dominant { font-size: 13.5px; color: var(--text-soft); margin-bottom: 12px; text-align: justify; }
.sobol-dominant b { color: var(--accent); }
.sobol-bars { display: flex; flex-direction: column; gap: 8px; }
.sobol-bar-row { display: grid; grid-template-columns: 184px 1fr auto; align-items: center; gap: 12px; }
.sobol-bar-label { font-size: 12.5px; color: var(--text-soft); text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: flex; align-items: center; gap: 6px; justify-content: flex-end; }
.sobol-badge { font-size: 10px; padding: 1px 6px; border-radius: 999px; font-weight: 700; line-height: 1.5; white-space: nowrap; }
.sobol-badge.model { color: var(--brand); background: color-mix(in srgb, var(--brand) 16%, transparent); }
.sobol-badge.user { color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); }
.sobol-bar-fill.user { background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 60%, var(--brand))); }
.sobol-bar-track { height: 9px; border-radius: 6px; background: rgba(100, 116, 139, 0.14); overflow: hidden; }
.sobol-bar-fill { display: block; height: 100%; border-radius: 6px;
  background: linear-gradient(90deg, var(--brand), var(--accent)); transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1); }
.sobol-bar-val { font-size: 11px; color: var(--text-faint); font-family: var(--font-num); white-space: nowrap; }
.sobol-inter { color: var(--brand-2); margin-left: 6px; }
.sobol-foot { font-size: 11.5px; margin-top: 10px; }
.sobol-note { font-size: 12.5px; color: var(--text-soft); padding: 4px 0; text-align: justify; }
@media (max-width: 640px) {
  .sobol-bar-row { grid-template-columns: 120px 1fr; }
  .sobol-bar-val { grid-column: 1 / -1; margin-top: -2px; }
}

/* ---------- Footer ---------- */
.footer { margin-top: 40px; text-align: center; color: var(--text-faint); font-size: 12.5px; line-height: 1.9; }
.footer a { color: var(--brand); text-decoration: none; }
.footer-author { display: block; margin-top: 6px; color: var(--text-soft); font-size: 12px; }

/* ---------- Magnetic ---------- */
.magnetic { transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1); will-change: transform; }

/* ---------- Focus visibility (a11y) ---------- */
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 8px; }

/* ============================================================
   响应式 — 桌面 / 平板 / 手机 三端适配
   ============================================================ */

/* 平板及以下：表单转单列，避免窄屏两列拥挤 */
@media (max-width: 980px) {
  .form-grid,
  .panel.glass .form-grid,
  #optResult .form-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); }
}

/* 手机 */
@media (max-width: 720px) {
  .wrap { padding: 22px 14px 48px; }
  .app-header { gap: 12px; }
  .header-actions { width: 100%; justify-content: space-between; }
  .brand h1 { font-size: 17px; }
  .brand p { font-size: 11.5px; }

  /* 标签页：单行横向滑动 + scroll-snap（像原生 App） */
  .tabs {
    flex-wrap: nowrap; overflow-x: auto; scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
    margin: 0 -14px 18px; padding: 2px 14px 6px;
  }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: 0 0 auto; scroll-snap-align: start; white-space: nowrap; padding: 9px 14px; font-size: 13px; }

  /* 表单更紧凑；输入 16px 防 iOS 聚焦自动缩放 */
  .form-grid { padding: 18px; gap: 14px; }
  .field input, .field select { font-size: 16px; padding: 13px 14px; }
  .btn-primary { width: 100%; justify-self: stretch; text-align: center; padding: 15px; }

  /* 指标 / 标题左右留白收窄 */
  .metrics { padding: 0 14px; }
  .section-title { padding: 0 14px 0 24px; margin: 22px 0 12px; font-size: 16px; }
  .section-title::before { left: 14px; }
  #optResult .metrics, #libCompare .metrics { padding: 14px !important; }

  /* 3D 高度按视口自适应 */
  #model3d { height: 60vh; max-height: 420px; min-height: 300px; }

  /* PFD/P&ID 横向滑动更顺 */
  .pfd-wrap { -webkit-overflow-scrolling: touch; touch-action: pan-x; padding: 14px; }

  /* 方案库控件更顺手 */
  .lib-source { gap: 10px; }
  .lib-source .text-input { min-width: 150px; }

  /* Hero（字号本身已 clamp 自适应，此处调布局） */
  .hero { min-height: auto; padding-block: 48px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .hero-scroll { display: none; }
  /* 手机：管道铺满为背景(slice)，降透明度 + 隐藏角标，文字居中不重叠 */
  .hero .hero-circuit { opacity: 0.30; }
  .hero .hc-label, .hero .hc-node { display: none; }
  .hero-inner { gap: 14px; max-width: 100%; }
  .hero-sub { font-size: 14px; line-height: 1.62; }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .wrap { padding: 16px 12px 40px; }
  .tabs { margin: 0 -12px 16px; padding: 2px 12px 6px; }
  .brand p { display: none; }                       /* 隐藏副标题省空间 */
  .theme-toggle button { padding: 6px 9px; font-size: 12px; }
  .header-actions .toggle-btn { flex: 1; justify-content: center; }  /* 导出按钮占满整行 */
  .hero-cta-row { gap: 10px; }
  .hero-cta { flex: 1; justify-content: center; padding: 13px 12px; font-size: 14px; }
  /* Hero 更小屏：管道更弱、指标更紧凑 */
  .hero .hero-circuit { opacity: 0.24; }
  [data-theme="light"] .hero .hero-circuit { opacity: 0.30; }
  .hero-stats { gap: 8px; }
  .hero-stat { padding: 11px 8px 9px; }
  .hero-stat .hs-v { font-size: 22px; }
  #model3d { height: 52vh; min-height: 260px; }
  .pfd-wrap { padding: 12px; }
  .section-title { font-size: 15px; }
}

/* —— 敏感度分析 · 龙卷风图 —— */
.sn-wrap { margin-top: 4px; }
.sn-wrap .note { margin-left: 0; margin-right: 0; }
.sn-ctrl { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.sn-ctrl label { font-size: 13px; color: var(--text-soft); }
.tornado { display: flex; flex-direction: column; gap: 10px; }
.tornado-row { display: grid; grid-template-columns: 120px 1fr 150px; gap: 10px; align-items: center; }
.tornado-label { font-size: 13px; color: var(--text-soft); text-align: right; }
.tornado-track { position: relative; height: 22px; background: var(--bg-soft, rgba(255,255,255,.05)); border-radius: 6px; }
.sn-bar { position: absolute; top: 0; height: 100%; border-radius: 5px; overflow: hidden; display: flex; }
.sn-seg { height: 100%; }
.sn-good { background: linear-gradient(90deg, var(--brand), var(--brand-2)); }
.sn-bad { background: linear-gradient(90deg, #fb7185, #ef4444); }
.tornado-base { position: absolute; top: -4px; width: 2px; height: 30px; background: var(--text); opacity: .55; }
.tornado-val { font-size: 11.5px; color: var(--text-faint); line-height: 1.35; }
.tornado-axis { padding: 6px 0 0 130px; font-size: 12px; color: var(--text-soft); }

/* —— 成本-能耗 Pareto 前沿图 —— */
.pareto-wrap { margin-top: 4px; }
.pareto-svg { width: 100%; max-width: 680px; height: auto; background: var(--bg-soft, rgba(255,255,255,.03));
  border-radius: 12px; border: 1px solid var(--border-soft, rgba(255,255,255,.08)); }
.pareto-axis { stroke: var(--text-faint); stroke-width: 1; }
.pareto-axis-label { fill: var(--text-soft); font-size: 12px; }
.pareto-al { fill: var(--text-faint); font-size: 11px; }
.pareto-line { fill: none; stroke: var(--brand); stroke-width: 2; stroke-linejoin: round; }
.pareto-dot { fill: var(--brand-2); stroke: #fff; stroke-width: .6; }
.pareto-cloud { fill: var(--text-faint); opacity: .28; }
.pareto-tl { fill: var(--text-soft); font-size: 10px; text-anchor: middle; }
.pareto-base { fill: var(--accent); stroke: #fff; stroke-width: 1.2; }
.pareto-base-dot { color: var(--accent); }
@media (max-width: 720px) {
  .tornado-row { grid-template-columns: 90px 1fr 96px; }
  .tornado-val { font-size: 10.5px; }
}

/* —— 引擎自检区块 —— */
.doc-selftest .btn-primary { margin-top: 4px; }
.selfcheck-result { }
.sc-summary { padding: 14px 18px; border-radius: 14px; margin-bottom: 12px; }
.sc-pass { background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.4); }
.sc-fail { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.4); }
.sc-big { font-weight: 700; font-size: 18px; letter-spacing: .5px; }
[data-theme="dark"] .sc-pass .sc-big { color: #4ade80; }
[data-theme="light"] .sc-pass .sc-big { color: #15803d; }
.sc-fail .sc-big { color: #dc2626; }
.sc-scheme { font-size: 13px; opacity: .85; margin-top: 6px; font-variant-numeric: tabular-nums; }
.sc-checks { display: flex; flex-direction: column; gap: 6px; }
.sc-row { display: flex; align-items: center; gap: 10px; padding: 7px 12px; border-radius: 9px;
  background: var(--border-soft); font-size: 13.5px; }
.sc-ok .sc-badge { color: #16a34a; }
.sc-fail .sc-badge { color: #dc2626; }
.sc-badge { font-weight: 700; font-size: 15px; }
.sc-name { font-weight: 500; }
.sc-detail { margin-left: auto; opacity: .6; font-variant-numeric: tabular-nums; }
[data-theme="light"] .sc-row { background: #eef2f7; }

/* hidden helper */
.hidden { display: none !important; }

/* —— CAPEX 子项分解（默认折叠，点击展开一级） —— */
.cap-top > td { vertical-align: top; padding: 0 !important; }
.cap-det { border-radius: 10px; overflow: hidden; }
.cap-det > summary {
  list-style: none; cursor: pointer; user-select: none;
  display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 14px;
  padding: 12px 14px; font-weight: 600;
}
.cap-det > summary::-webkit-details-marker { display: none; }
.cap-det > summary::before {
  content: "▸"; color: var(--brand); font-size: 12px; margin-right: 6px;
  display: inline-block; transition: transform 0.2s ease;
}
.cap-det[open] > summary::before { transform: rotate(90deg); }
.cap-det > summary:hover { background: var(--surface-2); }
.cap-name { font-weight: 600; }
.cap-qty { font-size: 11.5px; color: var(--text-faint); white-space: nowrap; }
.cap-amt { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--text); white-space: nowrap; }
.cap-indirect > td > .cap-det > summary .cap-name { color: var(--brand); }
.cap-indirect > td > .cap-det { background: color-mix(in srgb, var(--brand) 6%, transparent); }
.cap-tag { font-size: 10.5px; font-weight: 700; color: var(--brand); border: 1px solid color-mix(in srgb, var(--brand) 40%, transparent);
  border-radius: 6px; padding: 1px 7px; white-space: nowrap; }
.cap-subtotal { border-top: 2px solid var(--border); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.cap-subtotal .cap-name { font-weight: 800; color: var(--accent); }
.cap-subtable { width: 100%; border-collapse: collapse; margin: 0 0 4px; }
.cap-subtable td { padding: 7px 14px 7px 34px; color: var(--text-soft); font-size: 13px;
  border-top: 1px dashed var(--border-soft); }
.cap-subtable td:last-child { text-align: right; font-variant-numeric: tabular-nums; color: var(--text); }
.cap-subtable tr:last-child td { border-bottom: 1px dashed var(--border-soft); }
[data-theme="light"] .cap-subtable td { color: var(--text-soft); }

/* 表单分组标题 */
.subhead {
  grid-column: 1 / -1; margin-top: 6px; padding: 12px 0 6px;
  font-size: 13px; font-weight: 800; letter-spacing: 0.02em; color: var(--brand);
  border-top: 1px solid var(--border-soft);
}

/* 文本按钮（展开全部/折叠全部等） */
.link-btn {
  border: 1px solid var(--border-strong); background: var(--surface-2);
  color: var(--brand); font: inherit; font-size: 12.5px; font-weight: 700;
  padding: 6px 14px; border-radius: 999px; cursor: pointer;
  transition: all 0.2s ease; white-space: nowrap;
}
.link-btn:hover { background: var(--brand-soft); border-color: var(--brand); }

/* —— 设计计算书 —— */
.doc-hero { padding: 20px 22px 8px; }
.doc-title { font-size: 20px; margin: 0 0 8px; letter-spacing: .2px; }
.doc-lead { margin: 0; font-size: 14px; color: var(--text-soft); line-height: 1.65; max-width: 880px; text-align: justify; }
.doc-section { padding: 14px 22px 0; }
.doc-section h3 { font-size: 16px; margin: 0 0 8px; color: var(--brand-2); letter-spacing: .2px; }
.doc-p { font-size: 14px; color: var(--text-soft); line-height: 1.7; max-width: 900px; margin: 0 0 10px; text-align: justify; }
.doc-list { margin: 0 0 4px; padding-left: 20px; max-width: 900px; color: var(--text-soft); line-height: 1.7; font-size: 14px; }
.doc-list li { margin: 0 0 7px; text-align: justify; }
.doc-list li b { color: var(--text); }
.doc-refs { display: flex; flex-direction: column; gap: 6px; max-width: 900px; }
.doc-refs span { font-size: 12.5px; color: var(--text-faint); padding: 6px 10px;
  background: var(--card-soft); border: 1px solid var(--border-soft); border-radius: 8px; }
.doc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 12px 22px 0; }
.doc-card { background: var(--card-soft); border: 1px solid var(--border-soft);
  border-radius: 14px; padding: 14px 16px; }
.doc-card h4 { margin: 0 0 8px; font-size: 14px; color: var(--text); }
.doc-table { margin: 0; }
.doc-table th, .doc-table td { padding: 6px 10px; font-size: 13px; }
.doc-cap { font-size: 12px; color: var(--text-faint); margin: 8px 0 0; line-height: 1.5; text-align: justify; }
.doc-steps { list-style: none; margin: 10px 0 0; padding: 0; max-width: 900px;
  display: flex; flex-direction: column; gap: 8px; }
.doc-steps li { display: flex; gap: 12px; align-items: flex-start;
  background: var(--card-soft); border: 1px solid var(--border-soft);
  border-radius: 12px; padding: 11px 14px; line-height: 1.55; }
.doc-step-n { flex: 0 0 24px; height: 24px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 12.5px; font-weight: 700; }
.doc-steps li b { color: var(--text); }
.doc-steps li div { color: var(--text-soft); font-size: 13.5px; text-align: justify; }
.doc-confidential { margin: 16px 22px 22px; padding: 16px 18px;
  border: 1px solid var(--border-strong); border-radius: 14px;
  background: color-mix(in srgb, var(--accent) 8%, var(--card-soft));
  border-left: 4px solid var(--accent); }
.doc-confidential .doc-lock { font-size: 15px; font-weight: 700; margin: 0 0 8px; color: var(--accent); }
.doc-confidential p { margin: 0 0 10px; color: var(--text-soft); line-height: 1.7; font-size: 13.5px; text-align: justify; }
.doc-confidential p:last-child { margin-bottom: 0; }
.doc-confidential .doc-cap { color: var(--text-faint); }

/* 响应式：设计计算书双列在窄屏堆叠 */
@media (max-width: 720px) {
  .doc-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   水质可行性校核 — 状态徽章
   ============================================================ */
.wq-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; padding: 0 26px; }
.wq-item { position: relative; padding: 16px 16px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); overflow: hidden; box-shadow: inset 0 1px 0 rgba(255,255,255,0.12); }
.wq-item::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%; background: var(--accent); opacity: 0.7; }
.wq-item.wq-ok::before { background: linear-gradient(90deg, #22c55e, #34d399); }
.wq-item.wq-warn::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.wq-item.wq-fail::before { background: linear-gradient(90deg, #f43f5e, #fb7185); }
.wq-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.wq-name { font-size: 12.5px; font-weight: 700; color: var(--text-soft); }
.wq-pill { font-size: 10.5px; font-weight: 800; padding: 2px 9px; border-radius: 999px; white-space: nowrap; }
.wq-pill.wq-ok { background: rgba(34,197,94,.18); color: #22c55e; }
.wq-pill.wq-warn { background: rgba(245,158,11,.20); color: #f59e0b; }
.wq-pill.wq-fail { background: rgba(244,63,94,.20); color: #f43f5e; }
.wq-val { font-family: var(--font-num); font-size: 26px; font-weight: 700; letter-spacing: -0.02em; margin-top: 8px; font-variant-numeric: tabular-nums; line-height: 1.1; }
.wq-val small { font-family: var(--font); font-size: 12.5px; font-weight: 600; color: var(--text-faint); margin-left: 5px; }
.wq-lim { font-size: 11.5px; color: var(--text-faint); margin-top: 5px; }
.wq-note { font-size: 11.5px; color: var(--text-soft); margin-top: 6px; }
.badge.wq-ok { color: #22c55e; background: rgba(34,197,94,.16); }
.badge.wq-warn { color: #f59e0b; background: rgba(245,158,11,.18); }
.badge.wq-fail { color: #f43f5e; background: rgba(244,63,94,.18); }
@media (max-width: 720px) { .wq-grid { padding: 0 14px; } }

/* ============================================================
   Hero 首屏 — 高级科技感头图
   ============================================================ */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: 72vh; margin-bottom: 26px; padding: clamp(40px, 5.5vw, 72px) clamp(22px, 5vw, 64px);
  display: flex; align-items: center; justify-content: center; text-align: center;
  background:
    radial-gradient(120% 120% at 50% -10%, rgba(56, 189, 248, 0.10), transparent 60%),
    linear-gradient(160deg, rgba(17, 27, 46, 0.10), rgba(17, 27, 46, 0.02));
}
[data-theme="light"] .hero {
  background:
    radial-gradient(120% 120% at 50% -10%, rgba(14, 165, 233, 0.12), transparent 60%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.55), rgba(238, 242, 249, 0.25));
}

/* 背景层 */
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; border-radius: inherit; }
.hero-aurora {
  position: absolute; border-radius: 50%; filter: blur(58px); opacity: 0.55;
  mix-blend-mode: screen; will-change: transform;
}
[data-theme="light"] .hero-aurora { mix-blend-mode: multiply; opacity: 0.32; }
.hero-aurora.a1 { width: 460px; height: 460px; top: -120px; left: -80px;
  background: radial-gradient(circle, var(--brand), transparent 68%); animation: floatA 14s ease-in-out infinite; }
.hero-aurora.a2 { width: 520px; height: 520px; top: -60px; right: -120px;
  background: radial-gradient(circle, var(--brand-2), transparent 68%); animation: floatB 17s ease-in-out infinite; }
.hero-aurora.a3 { width: 420px; height: 420px; bottom: -160px; left: 38%;
  background: radial-gradient(circle, var(--accent), transparent 70%); animation: floatA 19s ease-in-out infinite reverse; }
@keyframes floatA { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px, 30px) scale(1.08); } }
@keyframes floatB { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-46px, 26px) scale(1.06); } }

/* 正交 RAS 回路 SVG（矩形环线） */
.hero-circuit { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.62; }
[data-theme="light"] .hero-circuit { opacity: 0.52; }
/* 液态玻璃空心管道：极透管壁 + 柔光晕 + 高光内线，水滴贴壁穿行 */
.hc-pipe-outer {
  fill: none; stroke: url(#hcFlow); stroke-opacity: 0.18; stroke-width: 16; stroke-linecap: round; stroke-linejoin: round;
  filter: blur(1.6px) drop-shadow(0 0 9px rgba(150,210,255,0.5));
}
.hc-pipe-core {
  fill: none; stroke: rgba(220,240,255,0.06); stroke-width: 10.4; stroke-linecap: round; stroke-linejoin: round;
}
[data-theme="light"] .hc-pipe-core { stroke: rgba(148,163,184,0.10); }
/* 玻璃高光内线（液态玻璃的边缘反射） */
.hc-pipe-rim {
  fill: none; stroke: rgba(205,238,255,0.55); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 0 3px rgba(150,210,255,0.7));
}
/* 角部装饰短线 */
.hc-spur { fill: none; stroke: var(--brand); stroke-width: 2; opacity: 0.4; stroke-linecap: round; }
/* 巡游水滴：液态蓝玻璃珠 + 蓝白双层辉光；贴满管腔；随管道转向(尖端朝运动方向)；速度 16s */
.hc-drop { stroke: rgba(225,245,255,0.55); stroke-width: 0.8; }
.hc-photon { filter: drop-shadow(0 0 10px #6fd0ff) drop-shadow(0 0 20px rgba(31,143,224,0.9)); }
.hc-spec { pointer-events: none; }
.hc-node { fill: var(--brand); stroke: var(--surface-2); stroke-width: 2.5; filter: drop-shadow(0 0 6px var(--brand-soft)); }
.hc-label { fill: var(--text-soft); font-size: 13px; font-weight: 700; text-anchor: middle; font-family: var(--font); letter-spacing: 0.02em; }

/* 柔和暗角，仅极淡压暗四角，保证中心文字清晰且角部标签可见 */
.hero-scrim { position: absolute; inset: 0;
  background: radial-gradient(ellipse 82% 86% at 50% 46%, transparent 62%, rgba(8, 14, 26, 0.10) 100%);
  opacity: 0.5; }
[data-theme="light"] .hero-scrim { background: radial-gradient(ellipse 82% 86% at 50% 46%, transparent 62%, rgba(255, 255, 255, 0.22) 100%); }

/* 前景内容 */
.hero-inner { position: relative; z-index: 2; max-width: 860px; display: flex; flex-direction: column; align-items: center; gap: 18px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.04em; color: var(--brand);
  background: var(--brand-soft); border: 1px solid var(--brand-soft);
  padding: 7px 16px; border-radius: 999px; backdrop-filter: blur(8px);
}
.hero-eyebrow .pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--brand);
  box-shadow: 0 0 0 0 var(--brand); animation: heroPulse 2s ease-out infinite; }
@keyframes heroPulse { 0% { box-shadow: 0 0 0 0 var(--brand-soft); } 70%,100% { box-shadow: 0 0 0 10px transparent; } }

.hero-title {
  font-size: clamp(34px, 6vw, 62px); font-weight: 900; line-height: 1.08;
  letter-spacing: -0.03em; margin: 0; color: var(--text);
}
.hero-title .grad {
  background: linear-gradient(115deg, var(--brand), var(--brand-2) 52%, var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 4px 24px var(--brand-soft));
}
.hero-sub {
  font-size: clamp(14px, 1.7vw, 17px); line-height: 1.7; color: var(--text-soft);
  max-width: 680px; margin: 0; font-weight: 500; text-align: justify;
}

.hero-cta-row { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin-top: 4px; }
.hero-cta {
  border: none; cursor: pointer; font-family: inherit; font-size: 15.5px; font-weight: 700;
  letter-spacing: 0.01em; padding: 14px 30px; border-radius: 999px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, background 0.25s ease;
}
.hero-cta.primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff;
  box-shadow: 0 12px 30px var(--brand-soft);
}
.hero-cta.primary:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 16px 40px rgba(14, 165, 233, 0.36); }
.hero-cta.ghost {
  background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
}
.hero-cta.ghost:hover { transform: translateY(-2px); border-color: var(--brand); color: var(--brand); box-shadow: 0 12px 30px var(--brand-soft); }

/* 首屏指标条 */
.hero-stats {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px;
  width: 100%; max-width: 720px; margin-top: 10px;
}
.hero-stat {
  position: relative; padding: 16px 14px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface);
  backdrop-filter: blur(14px) saturate(160%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 10px 30px rgba(15, 23, 42, 0.10);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}
.hero-stat::before { content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--brand), var(--brand-2)); opacity: 0.6; border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.hero-stat:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: 0 16px 36px rgba(15, 23, 42, 0.16), 0 0 0 1px var(--brand-soft); }
.hs-v {
  font-family: var(--font-num); font-size: clamp(22px, 3vw, 30px); font-weight: 800; letter-spacing: -0.02em;
  line-height: 1.1; color: var(--brand); font-variant-numeric: tabular-nums;
}
.hs-v small { font-family: var(--font); font-size: 12.5px; font-weight: 700; color: var(--text-faint); margin-left: 4px; }
.hs-k { font-size: 12px; color: var(--text-soft); font-weight: 600; margin-top: 6px; letter-spacing: 0.01em; }

/* 滚动指示器 */
.hero-scroll { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 2;
  width: 26px; height: 42px; border: 2px solid var(--border-strong); border-radius: 16px; display: grid; place-items: start center; }
.hero-scroll span { width: 4px; height: 9px; border-radius: 4px; background: var(--brand); margin-top: 7px; animation: heroScroll 1.7s ease-in-out infinite; }
@keyframes heroScroll { 0% { opacity: 0; transform: translateY(0); } 35% { opacity: 1; } 70%,100% { opacity: 0; transform: translateY(14px); } }


/* ---------- P&ID ---------- */
.pid-svg { width: 100%; height: auto; min-width: 760px; }
.pid-header { font-size: 17px; font-weight: 800; fill: var(--text); letter-spacing: -0.01em; }
.pid-caption { font-size: 12.5px; fill: var(--text-soft); }
.pid-tag { font-size: 11px; font-weight: 800; fill: var(--brand); text-anchor: middle; }
.pid-title { font-size: 14px; font-weight: 700; fill: var(--text); text-anchor: middle; }
.pid-sub { font-size: 11.5px; fill: var(--text-soft); text-anchor: middle; }
/* P&ID 背景面板与栅格 */
.pid-bg { fill: rgba(127, 140, 170, 0.05); stroke: var(--border); stroke-width: 1; }
.pid-box { fill: var(--surface-2); stroke: var(--border-strong); stroke-width: 1.6; transition: stroke-width .18s ease, stroke .18s ease; }
.pid-node:hover { filter: drop-shadow(0 0 10px rgba(129, 140, 248, 0.5)); }
.pid-node:hover .pid-box { stroke-width: 2.8; }
.pid-node:hover .pid-title { fill: var(--brand-2); }
.pid-line { stroke: var(--pipe); stroke-width: 2.2; fill: none; }
.pid-head { fill: var(--pipe); }
.pid-return { stroke: var(--brand); stroke-dasharray: 6 5; }
.pid-flow-label { font-size: 11px; fill: var(--text-faint); text-anchor: middle; paint-order: stroke; stroke: var(--bg); stroke-width: 3.4px; stroke-linejoin: round; }
.pid-sludge, .pid-sludge.pid-head { stroke: #fb923c; fill: #fb923c; }
.pid-node.c1 .pid-box { stroke: #38bdf8; }
.pid-node.c2 .pid-box { stroke: #22d3ee; }
.pid-node.c3 .pid-box { stroke: #34d399; }
.pid-node.c4 .pid-box { stroke: #818cf8; }
.pid-node.c5 .pid-box { stroke: #a78bfa; }
.pid-node.c6 .pid-box { stroke: #2dd4bf; }
.pid-node.c7 .pid-box { stroke: #fb923c; }
.pid-node.c8 .pid-box { stroke: #60a5fa; }
.pid-node.c9 .pid-box { stroke: #f472b6; }
.pid-node.c10 .pid-box { stroke: #fbbf24; }
.pid-node.c11 .pid-box { stroke: #fb923c; }
.pid-denit .pid-line, .pid-denit .pid-head { stroke: #f472b6; fill: #f472b6; }
.pid-flow-label.denit-txt { fill: #f472b6; }
/* 仪表轨 */
.pid-rail { fill: rgba(99, 102, 241, 0.07); stroke: var(--brand-2); stroke-width: 1.2; stroke-dasharray: 5 4; }
.pid-inst .pid-bubble { fill: var(--brand-2); stroke: #ffffff; stroke-width: 1.4; transition: stroke .15s ease, stroke-width .15s ease; }
.pid-inst:hover .pid-bubble { stroke: var(--brand); stroke-width: 2.4; }
.pid-bubble-txt { font-size: 10.5px; font-weight: 800; fill: #ffffff; text-anchor: middle; }
.pid-inst-label { font-size: 10.5px; fill: var(--text-faint); text-anchor: middle; }
.pid-inst-label.side { text-anchor: start; fill: var(--text); font-weight: 600; font-size: 11px; }
.pid-signal { stroke: var(--brand-2); stroke-width: 1.6; stroke-dasharray: 4 4; fill: none; }
.pid-bus { stroke: var(--brand-2); stroke-width: 2.4; stroke-dasharray: 8 4; fill: none; opacity: 0.85; }
.pid-control { stroke: #f59e0b; stroke-width: 2.2; stroke-dasharray: 2 3; fill: none; }
.pid-valve .pid-valve-box { fill: #f59e0b; stroke: #d97706; stroke-width: 1.5; }
.pid-dcs .pid-box { stroke: var(--brand); }
.pid-sub.left { text-anchor: start; }
.pid-title.left { text-anchor: start; }
.pid-legend .pid-sub { fill: var(--text-soft); text-anchor: start; }
.pid-legend .pid-bubble { fill: var(--brand-2); stroke: #ffffff; stroke-width: 1.2; }
.pid-legend .pid-valve-box { fill: #f59e0b; stroke: #d97706; }
/* 比水耗胶囊 */
.pid-swu { fill: var(--brand-soft); stroke: var(--brand); stroke-width: 1; }
.pid-swu-dot { fill: var(--brand); }
.pid-swu-txt { font-size: 12px; font-weight: 700; fill: var(--brand); text-anchor: start; }

/* ---------- Optimizer / Library ---------- */
.panel.glass .form-grid { grid-template-columns: repeat(2, 1fr); }
#optResult .metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; padding: 14px 26px; }
#optResult .metric { padding: 18px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); }
#optResult .metric .k { font-size: 12.5px; color: var(--text-soft); font-weight: 600; }
#optResult .metric .v { font-family: var(--font-num); font-size: 23px; font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
#optResult .metric .v small { display: inline; font-family: var(--font); font-size: 12px; color: var(--text-faint); margin-left: 4px; }
#optResult .metric .sub { font-size: 11.5px; color: var(--text-faint); margin-top: 4px; }
#libList table.data th:nth-child(5), #libList table.data td:nth-child(5) { text-align: right; }
#libList .toggle-btn { padding: 6px 12px; font-size: 12px; margin-left: 4px; }
#libCompare .metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; padding: 14px 26px; }

/* ======== 供应商库 ======== */
#panel-suppliers { padding: 22px 26px; }
.supplier-toolbar { display:flex; flex-wrap:wrap; gap:.65rem; align-items:center; margin-bottom:1rem; }
.supplier-categories { display:flex; gap:.4rem; flex-wrap:wrap; flex:1; }
.supplier-categories .chip { border:1px solid hsla(200,80%,70%,.35); background:hsla(200,80%,12%,.55); color:hsla(200,80%,80%,.85); padding:.35rem .85rem; border-radius:99px; cursor:pointer; font-size:.75rem; transition:all .18s; user-select:none; }
.supplier-categories .chip:hover { background:hsla(200,80%,20%,.7); border-color:hsla(200,80%,70%,.55); }
.supplier-categories .chip.on { background:hsla(200,80%,50%,.35); border-color:hsla(200,80%,70%,.65); color:#fff; }
.supplier-categories .chip .count { opacity:.6; margin-left:.3rem; font-size:.68rem; }
.supplier-search { width:220px; }
.supplier-search .text-input { padding:.35rem .7rem; font-size:.78rem; width:100%; }

.supplier-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(290px, 1fr)); gap:.75rem; }
.supplier-loading { color:hsla(0,0%,100%,.45); padding:2rem 0; text-align:center; grid-column:1/-1; }
.supplier-none { color:hsla(0,0%,100%,.35); padding:2rem 0; text-align:center; grid-column:1/-1; }

.supplier-card { background:hsla(200,30%,10%,.5); border:1px solid hsla(200,30%,40%,.18); border-radius:12px; padding:1rem 1.05rem; transition:border-color .18s, background .18s; cursor:pointer; display:flex; flex-direction:column; gap:.45rem; }
.supplier-card:hover { border-color:hsla(200,50%,50%,.4); background:hsla(200,30%,14%,.6); }
.supplier-card .sup-header { display:flex; align-items:baseline; justify-content:space-between; gap:.5rem; }
.supplier-card .sup-name { font-weight:600; font-size:.88rem; color:#fff; flex:1; }
.supplier-card .sup-brand { font-size:.7rem; color:hsla(200,70%,70%,.8); background:hsla(200,70%,40%,.2); padding:.12rem .5rem; border-radius:99px; white-space:nowrap; }
.supplier-card .sup-product { font-size:.73rem; color:hsla(0,0%,100%,.6); line-height:1.45; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.supplier-card .sup-meta { font-size:.7rem; color:hsla(0,0%,100%,.4); display:flex; flex-wrap:wrap; gap:.6rem; }
.supplier-card .sup-meta span { white-space:nowrap; }
.supplier-card .sup-tags { display:flex; flex-wrap:wrap; gap:.3rem; margin-top:.1rem; }
.supplier-card .sup-tag { font-size:.65rem; background:hsla(200,30%,30%,.35); color:hsla(200,30%,80%,.7); padding:.12rem .5rem; border-radius:99px; border:1px solid hsla(200,30%,40%,.15); }
.supplier-card .sup-desc { font-size:.7rem; color:hsla(0,0%,100%,.35); line-height:1.4; margin-top:.1rem; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }

/* 供应商详情弹窗 */
.supplier-modal-overlay { position:fixed; inset:0; background:hsla(0,0%,0%,.55); z-index:200; display:flex; align-items:center; justify-content:center; animation:fadeIn .18s; }
.supplier-modal { background:hsla(210,30%,10%,.95); backdrop-filter:blur(18px); border:1px solid hsla(200,30%,40%,.3); border-radius:16px; padding:1.5rem; max-width:480px; width:calc(100% - 2rem); max-height:85vh; overflow-y:auto; animation:toastIn .25s; }
.supplier-modal .modal-close { float:right; background:none; border:none; color:hsla(0,0%,100%,.5); font-size:1.2rem; cursor:pointer; padding:0 .3rem; }
.supplier-modal .modal-close:hover { color:#fff; }
.supplier-modal .modal-name { font-size:1rem; font-weight:600; color:#fff; margin-bottom:.3rem; padding-right:1.5rem; }
.supplier-modal .modal-brand { font-size:.75rem; color:hsla(200,70%,70%,.8); margin-bottom:.8rem; }
.supplier-modal .modal-section { margin-bottom:.8rem; }
.supplier-modal .modal-label { font-size:.68rem; color:hsla(0,0%,100%,.35); margin-bottom:.2rem; text-transform:uppercase; letter-spacing:.5px; }
.supplier-modal .modal-value { font-size:.78rem; color:hsla(0,0%,100%,.75); line-height:1.5; }
.supplier-modal .modal-value a { color:hsla(200,70%,70%,.8); text-decoration:none; }
.supplier-modal .modal-value a:hover { text-decoration:underline; }
.supplier-modal .modal-tags { display:flex; flex-wrap:wrap; gap:.3rem; }
.supplier-modal .modal-tag { font-size:.7rem; background:hsla(200,30%,30%,.4); color:hsla(200,30%,80%,.75); padding:.15rem .6rem; border-radius:99px; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes toastIn { from{opacity:0; transform:translateY(12px) scale(.96)} to{opacity:1; transform:none} }

@media (max-width: 720px) {
  .supplier-toolbar { flex-direction:column; }
  .supplier-search { width:100%; }
  .supplier-grid { grid-template-columns:1fr; }
  #panel-suppliers { padding: 16px 14px; }
}

/* ======== 供应商管理端 ======== */
.admin-lock-btn { background:hsla(200,30%,15%,.6); border:1px solid hsla(200,30%,40%,.2); color:hsla(0,0%,100%,.5); font-size:.9rem; padding:.35rem .6rem; border-radius:8px; cursor:pointer; transition:all .18s; line-height:1; }
.admin-lock-btn:hover { background:hsla(200,30%,25%,.7); border-color:hsla(200,30%,50%,.4); color:#fff; }
.admin-lock-btn.on { background:hsla(140,50%,20%,.55); border-color:hsla(140,50%,45%,.45); color:#8f8; }
.admin-lock-btn.nav-lock-btn { margin-left:auto; align-self:center; flex-shrink:0; }

.admin-add-btn { background:hsla(200,60%,45%,.45); border:1px solid hsla(200,60%,55%,.4); color:#fff; font-size:.78rem; padding:.35rem 1rem; border-radius:8px; cursor:pointer; transition:all .18s; white-space:nowrap; }
.admin-add-btn:hover { background:hsla(200,60%,50%,.55); border-color:hsla(200,60%,60%,.55); }

/* 卡片上的管理按钮 */
.supplier-card.admin-mode { position:relative; }
.card-admin-actions { position:absolute; top:.5rem; right:.5rem; display:flex; gap:.3rem; z-index:5; }
.admin-act-btn { background:hsla(0,0%,10%,.7); border:1px solid hsla(0,0%,100%,.15); border-radius:6px; padding:.25rem .45rem; font-size:.75rem; cursor:pointer; transition:all .15s; line-height:1; }
.admin-act-btn.edit:hover { background:hsla(200,60%,40%,.6); border-color:hsla(200,60%,60%,.5); }
.admin-act-btn.del:hover { background:hsla(0,70%,40%,.6); border-color:hsla(0,70%,60%,.5); }
.admin-act-btn.hide-btn:hover { background:hsla(40,60%,40%,.55); border-color:hsla(40,60%,55%,.5); }

/* 供应商卡片隐藏状态 */
.supplier-card.is-hidden { opacity:.5; }
.supplier-card.is-hidden::before { content:""; position:absolute; inset:0; background:hsla(0,0%,5%,.35); border-radius:14px; z-index:1; pointer-events:none; }
.supplier-card.is-hidden .card-admin-actions { z-index:6; }
.sup-hidden-badge { display:inline-block; font-size:.68rem; background:hsla(40,80%,50%,.25); border:1px solid hsla(40,80%,50%,.35); color:hsla(40,80%,70%,1); border-radius:4px; padding:.1rem .4rem; margin-left:.4rem; vertical-align:middle; }

/* 管理登录弹窗 */
.admin-login-modal { max-width:360px; }

/* 编辑表单 */
.supplier-editor-modal { max-width:520px; }
.supplier-form { display:flex; flex-direction:column; gap:.75rem; }
.supplier-form .form-row { display:flex; flex-direction:column; gap:.25rem; }
.supplier-form .form-row label { font-size:.7rem; color:hsla(0,0%,100%,.45); text-transform:uppercase; letter-spacing:.4px; }
.supplier-form .form-row .req { color:#f66; }
.supplier-form .form-row .text-input { padding:.45rem .7rem; font-size:.78rem; width:100%; background:hsla(0,0%,5%,.4); border:1px solid hsla(200,20%,40%,.25); border-radius:8px; color:#fff; }
.supplier-form .form-row .text-input:focus { outline:none; border-color:hsla(200,60%,50%,.5); }
.supplier-form .form-row textarea.text-input { resize:vertical; min-height:60px; font-family:inherit; }
.supplier-form .form-row select.text-input { appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23fff' opacity='.4' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right .6rem center; padding-right:2rem; }
.supplier-form .form-actions { display:flex; gap:.5rem; justify-content:flex-end; margin-top:.3rem; }
.supplier-form .form-actions .toggle-btn { padding:.4rem 1.2rem; font-size:.78rem; }
.supplier-form .form-actions .toggle-btn.on { background:hsla(200,60%,45%,.45); border-color:hsla(200,60%,55%,.5); }

/* 详情弹窗中的管理按钮 */
.modal-admin-footer { display:flex; gap:.5rem; margin-top:1rem; padding-top:.8rem; border-top:1px solid hsla(200,20%,40%,.15); }
.modal-admin-footer .admin-act-btn { font-size:.78rem; padding:.35rem .8rem; border-radius:8px; }

/* ======== 知识库管理面板 ======== */
#panel-knowledge { padding:18px 22px; }
.kb-header { display:flex; align-items:center; gap:.75rem; margin-bottom:1rem; flex-wrap:wrap; }
.kb-cat-select { background:hsla(0,0%,5%,.4); border:1px solid hsla(200,20%,40%,.25); border-radius:8px; color:#fff; font-size:.82rem; padding:.45rem 2rem .45rem .75rem; appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23fff' opacity='.4' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right .55rem center; cursor:pointer; min-width:220px; }
.kb-cat-select:focus { outline:none; border-color:hsla(200,60%,50%,.5); }
.kb-header-actions { display:flex; align-items:center; gap:.5rem; margin-left:auto; }
.kb-save-btn { background:hsla(200,60%,45%,.45); border:1px solid hsla(200,60%,55%,.4); color:#fff; font-size:.78rem; padding:.4rem 1rem; border-radius:8px; cursor:pointer; transition:all .18s; }
.kb-save-btn:hover { background:hsla(200,60%,50%,.55); }
.kb-reset-btn { background:hsla(0,50%,25%,.4); border:1px solid hsla(0,50%,40%,.3); color:hsla(0,0%,100%,.6); font-size:.75rem; padding:.35rem .8rem; border-radius:8px; cursor:pointer; transition:all .18s; }
.kb-reset-btn:hover { background:hsla(0,50%,35%,.5); color:#faa; border-color:hsla(0,50%,50%,.5); }
.kb-badge { background:hsla(140,50%,40%,.3); border:1px solid hsla(140,50%,50%,.35); color:#8f8; font-size:.7rem; padding:.2rem .6rem; border-radius:12px; }
.kb-hint { color:hsla(0,0%,100%,.3); font-size:.78rem; text-align:center; padding:2rem 0; }

.kb-table-wrap { overflow-x:auto; }
.kb-table { width:100%; border-collapse:collapse; font-size:.75rem; }
.kb-table th { text-align:left; color:hsla(0,0%,100%,.4); font-weight:500; padding:.5rem .6rem; border-bottom:1px solid hsla(200,20%,40%,.15); text-transform:uppercase; letter-spacing:.4px; font-size:.68rem; }
.kb-table td { padding:.45rem .6rem; border-bottom:1px solid hsla(200,20%,40%,.06); vertical-align:middle; }
.kb-table tr:hover td { background:hsla(200,30%,10%,.15); }
.kb-table tr.overridden td { background:hsla(140,50%,15%,.15); }
.kb-table tr.overridden:hover td { background:hsla(140,50%,18%,.22); }
.kb-table .kb-path { color:hsla(0,0%,100%,.5); font-family:"Fira Code",monospace; font-size:.7rem; max-width:280px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.kb-table .kb-default { color:hsla(0,0%,100%,.35); font-family:"Fira Code",monospace; font-size:.7rem; }
.kb-table .kb-input { background:hsla(0,0%,5%,.35); border:1px solid hsla(200,20%,40%,.2); border-radius:6px; color:#fff; font-size:.73rem; padding:.3rem .5rem; width:100%; max-width:160px; font-family:"Fira Code",monospace; }
.kb-table .kb-input:focus { outline:none; border-color:hsla(200,60%,50%,.45); }
.kb-table .kb-input.changed { border-color:hsla(50,70%,50%,.5); background:hsla(50,50%,10%,.25); }
.kb-table .kb-notes-input { background:hsla(0,0%,5%,.25); border:1px solid hsla(200,20%,40%,.12); border-radius:6px; color:hsla(0,0%,100%,.55); font-size:.7rem; padding:.3rem .5rem; width:100%; max-width:140px; }
.kb-table .kb-notes-input:focus { outline:none; border-color:hsla(200,30%,50%,.3); color:#fff; }
.kb-table .kb-reset-cell { cursor:pointer; color:hsla(0,0%,100%,.25); font-size:.7rem; transition:all .15s; padding:.3rem .5rem; }
.kb-table .kb-reset-cell:hover { color:hsla(0,70%,60%,.8); }
.kb-table tr.overridden .kb-reset-cell { color:hsla(0,70%,50%,.5); }

/* 审计日志 */
.kb-audit-section { margin-top:1.2rem; border-top:1px solid hsla(200,20%,40%,.12); padding-top:.8rem; }
.kb-audit-title { font-size:.78rem; color:hsla(0,0%,100%,.4); cursor:pointer; margin:0 0 .5rem; }
.kb-audit-title:hover { color:hsla(0,0%,100%,.6); }
.kb-audit-list { display:none; max-height:200px; overflow-y:auto; font-size:.7rem; }
.kb-audit-list.open { display:block; }
.kb-audit-item { padding:.35rem 0; border-bottom:1px solid hsla(200,20%,40%,.06); color:hsla(0,0%,100%,.45); display:flex; gap:.5rem; align-items:baseline; }
.kb-audit-item .audit-action { color:hsla(200,60%,60%,.8); font-weight:600; min-width:3rem; }
.kb-audit-item .audit-action.del { color:hsla(0,70%,55%,.8); }
.kb-audit-item .audit-action.reset { color:hsla(50,70%,55%,.8); }
.kb-audit-item .audit-key { font-family:"Fira Code",monospace; color:hsla(0,0%,100%,.35); }
.kb-audit-item .audit-time { color:hsla(0,0%,100%,.25); margin-left:auto; white-space:nowrap; }

/* ======== 面板间顺序导航按钮 ======== */
.panel-nav {
  display: flex; justify-content: center; padding: 22px 26px 26px;
  border-top: 1px solid var(--border);
  margin-top: 18px;
}
.panel-nav-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; font-family: inherit; font-size: 14px; font-weight: 700;
  border: 1px solid var(--brand);
  border-radius: 999px; cursor: pointer;
  background: var(--surface);
  color: var(--brand);
  box-shadow: 0 2px 12px var(--brand-soft);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.panel-nav-btn:hover {
  transform: translateY(-2px) scale(1.03);
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 28px var(--brand-soft);
}
.panel-nav-btn:active { transform: translateY(0) scale(0.98); }
.panel-nav-btn .arrow { font-size: 16px; transition: transform 0.2s ease; }
.panel-nav-btn:hover .arrow { transform: translateX(3px); }