/* ============================================================
   中轴线 · 三维营造 — 界面样式
   墨色 + 鎏金，玻璃拟态浮层
   ============================================================ */
:root {
  --ink: #0c121b;
  --ink-2: #121b28;
  --gold: #d8b25e;
  --gold-2: #f0d18c;
  --gold-dim: rgba(216, 178, 94, 0.18);
  --text: #e9edf3;
  --text-dim: #96a2b4;
  --line: rgba(216, 178, 94, 0.16);
  --panel: rgba(14, 21, 31, 0.72);
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

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

html, body {
  width: 100%; height: 100%; overflow: hidden;
  background: var(--ink); color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

#scene { position: fixed; inset: 0; width: 100vw; height: 100vh; display: block; }

h1, h2, h3 { font-family: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif; font-weight: 600; }

/* ---------------- 顶部 ---------------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: 72px; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
  background: linear-gradient(180deg, rgba(8, 12, 19, 0.92), rgba(8, 12, 19, 0.35) 70%, transparent);
  pointer-events: none;
}
.topbar > * { pointer-events: auto; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(150deg, var(--gold), #9c7426);
  color: #221803; font-size: 22px; font-family: "Noto Serif SC", serif; font-weight: 700;
  box-shadow: 0 8px 22px rgba(216, 178, 94, 0.28);
}
.brand-text h1 { font-size: 19px; letter-spacing: 2px; }
.brand-text p { font-size: 11.5px; color: var(--text-dim); letter-spacing: 1.2px; margin-top: 2px; }

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

.seg {
  display: inline-flex; padding: 4px; gap: 3px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line); border-radius: 11px; backdrop-filter: blur(14px);
}
.seg button {
  border: 0; background: transparent; color: var(--text-dim);
  padding: 7px 13px; border-radius: 8px; cursor: pointer; font-size: 12.5px;
  transition: 0.22s; letter-spacing: 0.6px; white-space: nowrap;
}
.seg button:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.seg button.active {
  background: linear-gradient(160deg, rgba(216, 178, 94, 0.95), rgba(176, 133, 48, 0.95));
  color: #241903; font-weight: 600;
}
.seg.wide { display: flex; width: 100%; }
.seg.wide button { flex: 1; text-align: center; padding: 9px 0; font-size: 14px; }

button.ghost {
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04);
  color: var(--text-dim); padding: 8px 14px; border-radius: 10px; cursor: pointer;
  font-size: 12.5px; transition: 0.22s;
}
button.ghost:hover { color: var(--gold-2); border-color: rgba(216, 178, 94, 0.42); }
button.primary {
  border: 0; cursor: pointer; padding: 10px 16px; border-radius: 10px; font-size: 13px;
  background: linear-gradient(160deg, var(--gold), #b3892f); color: #241903; font-weight: 600;
  box-shadow: 0 10px 26px rgba(216, 178, 94, 0.22); transition: 0.22s;
}
button.primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
button.primary.on { background: linear-gradient(160deg, #b3892f, var(--gold)); }

/* ---------------- 浮层面板 ---------------- */
.panel {
  position: fixed; top: 88px; z-index: 15; width: 306px;
  max-height: calc(100vh - 232px); overflow-y: auto; overscroll-behavior: contain;
  background: var(--panel); backdrop-filter: blur(20px) saturate(1.2);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 16px 18px; box-shadow: var(--shadow);
  scrollbar-width: thin; scrollbar-color: rgba(216, 178, 94, 0.35) transparent;
}
.panel.left { left: 20px; }
.panel.right { right: 20px; }
.panel::-webkit-scrollbar { width: 5px; }
.panel::-webkit-scrollbar-thumb { background: rgba(216, 178, 94, 0.35); border-radius: 4px; }

.panel-head { display: flex; align-items: baseline; gap: 9px; margin-bottom: 13px; }
.panel-head h2 { font-size: 15.5px; letter-spacing: 1.5px; color: var(--gold-2); }
.panel-head span { font-size: 9.5px; letter-spacing: 1.6px; color: var(--text-dim); opacity: 0.75; }

.stat-card {
  background: rgba(255, 255, 255, 0.035); border: 1px solid var(--line);
  border-radius: 11px; padding: 11px 12px; margin-bottom: 14px;
}
.stat-row { display: flex; justify-content: space-between; font-size: 11.8px; padding: 3px 0; }
.stat-row span { color: var(--text-dim); }
.stat-row b { color: var(--gold-2); font-weight: 600; letter-spacing: 0.4px; }
.stat-note { margin-top: 8px; font-size: 10.4px; line-height: 1.75; color: var(--text-dim); opacity: 0.82; }

.block { margin-bottom: 15px; }
.block-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.block-head label { font-size: 12px; color: var(--text); letter-spacing: 1px; }
.block-head output { font-size: 11.5px; color: var(--gold-2); font-variant-numeric: tabular-nums; }

.btn-row { display: flex; gap: 8px; margin-top: 11px; }
.btn-row > * { flex: 1; }

/* 滑块 */
.range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px;
  border-radius: 4px; background: rgba(255, 255, 255, 0.13); outline: none;
}
.range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 16px; height: 16px;
  border-radius: 50%; cursor: pointer;
  background: linear-gradient(160deg, var(--gold-2), var(--gold));
  border: 2px solid rgba(20, 16, 6, 0.55); box-shadow: 0 3px 12px rgba(216, 178, 94, 0.42);
}
.range::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%; cursor: pointer;
  background: var(--gold); border: 2px solid rgba(20, 16, 6, 0.55);
}

/* 构件列表 */
.part-list { display: flex; flex-direction: column; gap: 9px; }
.part-item {
  background: rgba(255, 255, 255, 0.035); border: 1px solid var(--line);
  border-radius: 10px; padding: 9px 11px; cursor: pointer; transition: 0.22s;
}
.part-item:hover { border-color: rgba(216, 178, 94, 0.4); background: rgba(216, 178, 94, 0.07); }
.part-item.dim { opacity: 0.42; }
.part-item .row1 { display: flex; align-items: center; gap: 8px; }
.part-item .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); flex: none; }
.part-item .nm { font-size: 12.4px; letter-spacing: 0.6px; flex: 1; }
.part-item .en { font-size: 9px; letter-spacing: 1.2px; color: var(--text-dim); }
.part-item .row2 { display: flex; align-items: center; gap: 8px; margin-top: 7px; }
.part-item .row2 .range { flex: 1; }
.part-item .pct { font-size: 10px; color: var(--text-dim); width: 34px; text-align: right; font-variant-numeric: tabular-nums; }
.eye {
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.05); color: var(--text-dim);
  border-radius: 7px; width: 26px; height: 22px; cursor: pointer; font-size: 11px; flex: none;
}
.eye.off { opacity: 0.35; }

/* 开关 */
.switch-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 2px; font-size: 12.2px;
}
.switch { position: relative; width: 38px; height: 21px; display: inline-block; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch i {
  position: absolute; inset: 0; cursor: pointer; border-radius: 20px;
  background: rgba(255, 255, 255, 0.14); transition: 0.25s;
}
.switch i::before {
  content: ""; position: absolute; width: 15px; height: 15px; left: 3px; top: 3px;
  border-radius: 50%; background: #cfd6e0; transition: 0.25s;
}
.switch input:checked + i { background: linear-gradient(120deg, var(--gold), #b3892f); }
.switch input:checked + i::before { transform: translateX(17px); background: #2a1d05; }

/* 太阳读数 */
.sun-read { display: flex; gap: 6px; margin-top: 10px; }
.sun-read > div {
  flex: 1; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line);
  border-radius: 9px; padding: 7px 6px; text-align: center;
}
.sun-read span { display: block; font-size: 9.4px; color: var(--text-dim); letter-spacing: 0.6px; }
.sun-read b { font-size: 13px; color: var(--gold-2); font-variant-numeric: tabular-nums; }

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip-row button {
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04);
  color: var(--text-dim); font-size: 10.6px; padding: 6px 9px;
  border-radius: 20px; cursor: pointer; transition: 0.22s;
}
.chip-row button:hover { color: var(--gold-2); border-color: rgba(216, 178, 94, 0.45); }

.season-sub {
  text-align: center; font-size: 11px; color: var(--gold-2);
  letter-spacing: 1.6px; margin: 9px 0 12px; opacity: 0.85;
}

.select-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.select-row label { font-size: 11px; color: var(--text-dim); letter-spacing: 1px; }
select {
  width: 100%; background: rgba(255, 255, 255, 0.05); color: var(--text);
  border: 1px solid var(--line); border-radius: 9px; padding: 8px 9px; font-size: 11.6px;
  outline: none; cursor: pointer;
}
select option { background: var(--ink-2); color: var(--text); }

.era-note {
  margin-top: 10px; font-size: 10.6px; line-height: 1.85; color: var(--text-dim);
  background: rgba(255, 255, 255, 0.035); border-left: 2px solid var(--gold);
  padding: 9px 10px; border-radius: 0 8px 8px 0;
}

/* ---------------- 底部智慧卡 ---------------- */
.wisdom {
  position: fixed; left: 20px; right: 20px; bottom: 16px; z-index: 14;
  display: flex; align-items: center; gap: 14px;
}
.wisdom-head {
  writing-mode: vertical-lr; letter-spacing: 3px; font-size: 13px;
  color: var(--gold-2); display: flex; align-items: center; gap: 8px; flex: none;
}
.wisdom-head span { font-size: 8.6px; letter-spacing: 1.4px; color: var(--text-dim); }
.wisdom-cards {
  display: flex; gap: 10px; overflow-x: auto; padding: 4px 2px; flex: 1;
  scrollbar-width: none;
}
.wisdom-cards::-webkit-scrollbar { display: none; }
.wisdom-cards article {
  flex: none; width: 224px; padding: 11px 13px; cursor: pointer; transition: 0.24s;
  background: var(--panel); backdrop-filter: blur(18px);
  border: 1px solid var(--line); border-radius: 12px;
}
.wisdom-cards article:hover {
  transform: translateY(-4px); border-color: rgba(216, 178, 94, 0.42);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.42);
}
.wisdom-cards h3 { font-size: 12.8px; color: var(--gold-2); letter-spacing: 1px; margin-bottom: 5px; }
.wisdom-cards p { font-size: 10.4px; line-height: 1.72; color: var(--text-dim); }

/* ---------------- 构件标注 ---------------- */
#labels { position: fixed; inset: 0; pointer-events: none; z-index: 12; }
.label {
  position: absolute; transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: 7px; white-space: nowrap;
  transition: opacity 0.3s;
}
.label .pin {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold-2); box-shadow: 0 0 0 4px rgba(216, 178, 94, 0.2);
}
.label .txt {
  font-size: 10.6px; letter-spacing: 1px; color: #f2e9d2;
  background: rgba(12, 18, 27, 0.72); border: 1px solid rgba(216, 178, 94, 0.28);
  padding: 3px 9px; border-radius: 20px; backdrop-filter: blur(6px);
}

/* ---------------- 信息卡 ---------------- */
.info-card {
  position: fixed; right: 20px; bottom: 232px; width: 320px; z-index: 18;
  background: var(--panel); backdrop-filter: blur(20px);
  border: 1px solid rgba(216, 178, 94, 0.3); border-radius: var(--radius);
  padding: 16px 17px; box-shadow: var(--shadow);
  opacity: 0; transform: translateY(14px); pointer-events: none; transition: 0.32s;
}
.info-card.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.info-card .close {
  position: absolute; top: 8px; right: 10px; border: 0; background: transparent;
  color: var(--text-dim); font-size: 19px; cursor: pointer; line-height: 1;
}
.info-en { font-size: 9.4px; letter-spacing: 2.4px; color: var(--gold); opacity: 0.8; }
.info-card h3 { font-size: 16px; margin: 5px 0 8px; color: var(--gold-2); letter-spacing: 1.2px; }
.info-card p { font-size: 11.6px; line-height: 1.95; color: #cfd7e2; }
.info-tip {
  margin-top: 11px; padding-top: 9px; border-top: 1px solid var(--line);
  font-size: 9.6px; color: var(--text-dim); letter-spacing: 1px;
}

/* ---------------- 对比 HUD ---------------- */
.compare-hud {
  position: fixed; top: 88px; left: 50%; transform: translateX(-50%);
  display: none; align-items: center; gap: 14px; z-index: 16;
}
.compare-hud.show { display: flex; }
.compare-hud .tag {
  background: var(--panel); border: 1px solid var(--line); backdrop-filter: blur(14px);
  padding: 7px 15px; border-radius: 20px; font-size: 11.6px; letter-spacing: 1px;
  color: var(--gold-2);
}
.compare-hud .hint { font-size: 10.4px; color: var(--text-dim); letter-spacing: 1px; }

.divider {
  position: fixed; top: 0; bottom: 0; left: 50%; width: 26px; margin-left: -13px; z-index: 13;
  display: none; cursor: ew-resize;
}
.divider::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; margin-left: -1px;
  background: linear-gradient(180deg, transparent, rgba(216, 178, 94, 0.7) 12%, rgba(216, 178, 94, 0.7) 88%, transparent);
}
.divider.show { display: block; }
.divider-handle {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(160deg, var(--gold-2), var(--gold));
  border: 2px solid rgba(12, 18, 27, 0.6);
  box-shadow: 0 10px 26px rgba(216, 178, 94, 0.4);
}
.divider-handle::before, .divider-handle::after {
  content: ""; position: absolute; top: 50%; width: 0; height: 0;
  border-top: 5px solid transparent; border-bottom: 5px solid transparent;
}
.divider-handle::before { left: 7px; border-right: 6px solid #2a1d05; }
.divider-handle::after { right: 7px; border-left: 6px solid #2a1d05; }

/* ---------------- 说明 / 载入 ---------------- */
.modal {
  position: fixed; inset: 0; z-index: 40; display: none;
  align-items: center; justify-content: center;
  background: rgba(6, 10, 16, 0.72); backdrop-filter: blur(8px);
}
.modal.show { display: flex; }
.modal-box {
  width: min(560px, 92vw); background: var(--ink-2);
  border: 1px solid rgba(216, 178, 94, 0.28); border-radius: 16px;
  padding: 28px 30px; box-shadow: var(--shadow);
}
.modal-box h2 { font-size: 19px; color: var(--gold-2); letter-spacing: 2px; margin-bottom: 15px; }
.modal-box ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.modal-box li {
  font-size: 12.4px; line-height: 1.95; color: #c8d2df;
  padding-left: 16px; border-left: 2px solid var(--gold-dim);
}
.modal-box li b { color: var(--gold-2); font-weight: 600; }
.modal-box button { margin-top: 20px; width: 100%; }

.loader {
  position: fixed; inset: 0; z-index: 60; display: grid; place-items: center;
  background: radial-gradient(1200px 700px at 50% 40%, #17222f, #080d14 70%);
  transition: opacity 0.7s, visibility 0.7s;
}
.loader.hide { opacity: 0; visibility: hidden; }
.loader-inner { text-align: center; max-width: 460px; padding: 0 22px; }
.loader-mark {
  width: 84px; height: 84px; margin: 0 auto 22px; border-radius: 18px;
  display: grid; place-items: center; font-size: 40px;
  font-family: "Noto Serif SC", serif; font-weight: 700; color: #241903;
  background: linear-gradient(150deg, var(--gold-2), var(--gold) 45%, #8d6a22);
  box-shadow: 0 22px 60px rgba(216, 178, 94, 0.32);
}
.loader h1 { font-size: 27px; letter-spacing: 5px; color: var(--text); }
.loader p { margin: 12px 0 26px; font-size: 12.2px; letter-spacing: 2px; color: var(--text-dim); }
.progress {
  height: 3px; border-radius: 3px; background: rgba(255, 255, 255, 0.1);
  overflow: hidden; margin-bottom: 26px;
}
.progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-2));
  transition: width 0.4s;
}
.loader .primary { padding: 13px 34px; font-size: 14px; letter-spacing: 3px; }

@media (max-width: 1240px) {
  .panel { width: 268px; }
  .wisdom-cards article { width: 196px; }
}
@media (max-width: 980px) {
  .panel.right { display: none; }
  .wisdom { display: none; }
}