/*
 * 经典图谱 · 星河视觉层（classic_node_map / tiantai_classics / shurangama_concept_map 共用）
 * 这三页不使用全站方案 C 配色，独立采用夜空星河色调。只覆盖视觉，不改页面结构与交互。
 */
:root {
  --cosmos-night: #050814;
  --cosmos-deep: #0b1330;
  --cosmos-violet: #8b7bff;
  --cosmos-teal: #58d7bf;
  --cosmos-gold: #f5d36b;
  --cosmos-ink: #f4f1ff;
  --cosmos-muted: #b9c0dc;
}

html,
body {
  background:
    radial-gradient(1100px 760px at 12% 8%, rgba(88, 215, 191, 0.16), transparent 62%),
    radial-gradient(900px 700px at 88% 14%, rgba(139, 123, 255, 0.22), transparent 62%),
    radial-gradient(1000px 760px at 62% 108%, rgba(245, 158, 66, 0.14), transparent 60%),
    linear-gradient(160deg, #050814 0%, #0b1330 52%, #140d33 100%) !important;
  color: var(--cosmos-ink);
}

body::before {
  opacity: 0.14 !important;
}

.cosmos-sky {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.app {
  position: relative;
  z-index: 1;
}

.panel,
.map {
  border: 1px solid rgba(170, 182, 255, 0.16) !important;
  border-radius: 20px !important;
  background: linear-gradient(160deg, rgba(22, 30, 66, 0.78), rgba(8, 11, 30, 0.86)) !important;
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.07) !important;
  /* 背后星空每帧变化，毛玻璃模糊会每帧重算、拖慢帧率，所以改用加深的半透明底色 */
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.map {
  background:
    radial-gradient(circle at 50% 50%, rgba(245, 211, 107, 0.10), transparent 32%),
    radial-gradient(circle at 50% 52%, rgba(139, 123, 255, 0.14), transparent 62%),
    rgba(5, 8, 22, 0.55) !important;
}

.cosmos-fx {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

#glowCanvas {
  z-index: 1;
}

h1,
.detail-title {
  background: linear-gradient(120deg, #fff8dc 0%, #f5d36b 42%, #b9a8ff 78%, #8fe6d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
  filter: drop-shadow(0 0 22px rgba(245, 211, 107, 0.22));
}

.subtitle,
.detail-text {
  color: var(--cosmos-muted) !important;
}

.detail-kicker,
.section-title {
  color: #f7d98a !important;
  letter-spacing: 0.12em;
}

.point-list,
.related-list {
  color: #dfe1f5 !important;
}

.point-list li::marker {
  color: var(--cosmos-gold);
}

button:not(.node),
.back-link {
  border: 1px solid rgba(190, 196, 255, 0.24) !important;
  border-radius: 999px !important;
  background: rgba(255, 255, 255, 0.05) !important;
  color: #eef0ff !important;
  padding: 8px 14px !important;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

button:not(.node):hover,
.back-link:hover {
  border-color: rgba(245, 211, 107, 0.6) !important;
  background: rgba(245, 211, 107, 0.1) !important;
  box-shadow: 0 0 22px rgba(245, 211, 107, 0.18);
}

.related-list button {
  padding: 2px 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: none !important;
  color: #ffe9a6 !important;
  box-shadow: none !important;
}

.related-list button:hover {
  color: #ffffff !important;
  text-shadow: 0 0 12px rgba(245, 211, 107, 0.7);
}

/* ===== 节点：玻璃星球 ===== */
.map .node {
  --s: 0.98;
  --rx: 0deg;
  --ry: 0deg;
  z-index: 2;
  padding: 12px !important;
  border: 1px solid color-mix(in srgb, var(--hue), transparent 30%) !important;
  border-radius: 50% !important;
  color: #ffffff !important;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.42), transparent 20%),
    radial-gradient(circle at 70% 82%, color-mix(in srgb, var(--hue), transparent 55%), transparent 46%),
    radial-gradient(circle at 50% 55%, color-mix(in srgb, var(--hue), transparent 50%), rgba(8, 10, 30, 0.94) 72%) !important;
  box-shadow:
    0 0 0 6px color-mix(in srgb, var(--hue), transparent 92%),
    inset 0 0 24px color-mix(in srgb, var(--hue), transparent 70%),
    0 0 36px color-mix(in srgb, var(--hue), transparent 58%),
    0 20px 44px rgba(0, 0, 0, 0.5) !important;
  transform: translate(-50%, -50%) perspective(700px) rotateX(var(--rx)) rotateY(var(--ry)) scale(var(--s)) !important;
  animation: float var(--duration) ease-in-out infinite alternate;
  transition: transform 260ms cubic-bezier(.2,.8,.2,1), opacity 260ms ease, filter 260ms ease, box-shadow 260ms ease;
  will-change: transform;
}

.map .node::before {
  content: "";
  position: absolute;
  inset: -11px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 55%, color-mix(in srgb, var(--hue), white 30%) 72%, transparent 88%);
  -webkit-mask: radial-gradient(circle, transparent 63%, #000 65%, #000 68%, transparent 70%);
  mask: radial-gradient(circle, transparent 63%, #000 65%, #000 68%, transparent 70%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  animation: cosmosSpin 6s linear infinite;
}

.map .node::after {
  content: "";
  position: absolute;
  inset: -26px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--hue), transparent 78%), transparent 66%);
  opacity: 0.55;
  pointer-events: none;
  z-index: -1;
}

.map .node strong {
  color: #ffffff !important;
  text-shadow: 0 0 14px color-mix(in srgb, var(--hue), transparent 30%), 0 1px 2px rgba(0, 0, 0, 0.6);
}

.map .node small {
  color: rgba(240, 242, 255, 0.78) !important;
  letter-spacing: 0.08em;
}

.map .node:not(.active):hover {
  --s: 1.07;
  filter: brightness(1.12) saturate(1.15);
}

.map .node.related {
  --s: 1.04;
  z-index: 3;
}

.map .node.related::before {
  opacity: 0.4;
  animation-duration: 11s;
}

.map .node.active {
  --s: 1.12;
  z-index: 4;
  filter: saturate(1.25) brightness(1.08);
  box-shadow:
    0 0 0 8px color-mix(in srgb, var(--hue), transparent 86%),
    inset 0 0 30px color-mix(in srgb, var(--hue), transparent 55%),
    0 0 46px color-mix(in srgb, var(--hue), transparent 30%),
    0 0 110px color-mix(in srgb, var(--hue), transparent 55%),
    0 22px 50px rgba(0, 0, 0, 0.55) !important;
}

.map .node.active::before {
  opacity: 1;
}

.map .node.active::after {
  opacity: 1;
  inset: -40px;
}

.map .node.dimmed {
  opacity: 0.4 !important;
  filter: grayscale(0.35) brightness(0.85);
}

@keyframes cosmosSpin {
  to { transform: rotate(360deg); }
}

@media (max-width: 980px) {
  .map .node.active { --s: 1.06; }
  .map .node.related { --s: 1.02; }
}

@media (max-width: 560px) {
  .map .node { padding: 7px !important; }
  .map .node.active { --s: 1.04; }
  .map .node::after { inset: -16px; }
}

@media (prefers-reduced-motion: reduce) {
  .map .node,
  .map .node::before {
    animation: none !important;
  }
}

/* 页面右上角“首页”按钮 */
.home-float {
  background: linear-gradient(135deg, #f5d36b, #f0a35e) !important;
  color: #1b1030 !important;
  box-shadow: 0 10px 30px rgba(245, 180, 90, 0.35) !important;
}