/* ============================================================
   XWP 统一设计系统 · 东方留白 × 现代极简 × 紫金点睛
   ------------------------------------------------------------
   全站可复用。令牌 / 天光 / 新导航 全局生效；
   旧导航隐藏与页面专属优化用 body 作用域 class 隔离（如 .xp-home），
   未适配的页面引用本文件不会被破坏。
   ============================================================ */
:root{
  --xp-bg:#0a0916;
  --xp-bg2:#100e20;
  --xp-ink:#EDEBF7;
  --xp-ink2:#8f8cb4;
  --xp-ink3:#5f5c85;
  --xp-gold:#E7C889;
  --xp-gold-dim:rgba(231,200,137,.5);
  --xp-purple:#7C8CFF;
  --xp-line:rgba(255,255,255,.08);
  --xp-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --xp-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI","Microsoft YaHei",sans-serif;
  --xp-ease:cubic-bezier(.16,1,.3,1);
}

/* ---------- 一缕极淡的天光（fixed 伪元素，无需改 HTML） ---------- */
body::before{
  content:""; position:fixed; left:50%; top:-24vh; z-index:0; pointer-events:none;
  width:132vmin; height:78vmin; transform:translateX(-50%);
  background:radial-gradient(ellipse at 50% 40%,
    rgba(231,200,137,.09), rgba(124,140,255,.05) 45%, transparent 70%);
}
body{ position:relative; }

/* ---------- 标题宋体化（箴言书卷感） ---------- */
h1, h2, h3, .h2{ font-family:var(--xp-serif); letter-spacing:.5px; }

/* ============================================================
   新极简导航
   PC：.xwp-topnav 顶部通栏（透明 → 滚动微显玻璃）
   移动：.xwp-mtab 底部纤细胶囊 Tab
   ============================================================ */
.xwp-topnav{
  position:fixed; top:0; left:0; right:0; z-index:640;
  display:flex; align-items:center; gap:34px;
  padding:22px clamp(20px, 6vw, 64px);
  border-bottom:1px solid transparent;
  transition:padding .4s var(--xp-ease), background .4s var(--xp-ease), border-color .4s;
}
.xwp-topnav.scrolled{
  padding-top:13px; padding-bottom:13px;
  background:rgba(10,9,22,.72); border-bottom-color:var(--xp-line);
  backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
}
.xwp-topnav .xp-brand{
  display:flex; align-items:center; gap:11px;
  font-family:var(--xp-serif); font-size:19px; font-weight:600; letter-spacing:2px;
  color:var(--xp-ink); text-decoration:none; line-height:1.1;
}
.xwp-topnav .xp-brand img{ width:31px; height:31px; border-radius:8px; display:block; flex:none; }
.xwp-topnav .xp-brand > span{ display:block; }
.xwp-topnav .xp-brand em{ font-style:normal; color:var(--xp-gold); }
.xwp-topnav .xp-brand small{
  display:block; font-family:var(--xp-sans); font-size:9.5px; font-weight:400;
  letter-spacing:3px; color:var(--xp-ink3); margin-top:3px;
}
.xwp-topnav .xp-spacer{ flex:1; }
.xwp-topnav .xp-links{ display:flex; gap:30px; }
.xwp-topnav .xp-links a{
  color:var(--xp-ink2); text-decoration:none; font-size:13.5px; letter-spacing:1px;
  padding:4px 0; position:relative; transition:color .25s;
}
.xwp-topnav .xp-links a::after{
  content:""; position:absolute; left:0; bottom:-2px; height:1px; width:0;
  background:var(--xp-gold); transition:width .3s var(--xp-ease);
}
.xwp-topnav .xp-links a:hover{ color:var(--xp-ink); }
.xwp-topnav .xp-links a:hover::after,
.xwp-topnav .xp-links a.on::after{ width:100%; }
.xwp-topnav .xp-links a.on{ color:var(--xp-gold); }
.xwp-topnav .xp-login{
  font-size:13px; letter-spacing:1px; color:var(--xp-gold); text-decoration:none;
  border:1px solid var(--xp-gold-dim); border-radius:999px; padding:8px 20px;
  transition:background .25s, border-color .25s, transform .25s var(--xp-ease);
  white-space:nowrap; cursor:pointer;
}
.xwp-topnav .xp-login:hover{ background:rgba(231,200,137,.12); border-color:var(--xp-gold); transform:translateY(-1px); }

/* 移动端底部纤细胶囊 Tab */
.xwp-mtab{
  position:fixed; left:50%; bottom:calc(14px + env(safe-area-inset-bottom)); z-index:640;
  transform:translateX(-50%);
  display:flex; gap:2px; padding:6px;
  background:rgba(16,14,32,.78); border:1px solid var(--xp-line); border-radius:999px;
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  box-shadow:0 14px 34px -12px rgba(0,0,0,.7);
}
.xwp-mtab .tab{
  display:flex; align-items:center; gap:6px; padding:9px 13px; border-radius:999px;
  color:var(--xp-ink2); font-size:12.5px; letter-spacing:.5px; text-decoration:none;
  transition:color .2s, background .2s, transform .15s;
  -webkit-tap-highlight-color:transparent;
}
.xwp-mtab .tab svg{ width:17px; height:17px; flex:none; fill:none; stroke:currentColor; stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }
.xwp-mtab .tab.on{ color:var(--xp-gold); background:rgba(231,200,137,.1); }
.xwp-mtab .tab:active{ transform:scale(.94); }

/* 断点：PC 隐藏 mtab；移动端 topnav 收起因面空间 */
@media (min-width:901px){ .xwp-mtab{ display:none; } }
@media (max-width:900px){
  .xwp-topnav{ padding:16px 22px; gap:18px; }
  .xwp-topnav .xp-links{ display:none; }
}

/* ============================================================
   首页专属（body.xp-home）：隐藏旧导航 + 内容区基调优化
   ============================================================ */
.xp-home nav.nav,
.xp-home nav.xwp-tabbar{ display:none !important; }

/* 深底统一 + 内容区更多留白 */
.xp-home{ background:var(--xp-bg); }
.xp-home .band{ position:relative; z-index:1; }
.xp-home .eyebrow{ letter-spacing:2px; }
.xp-home .h2{ font-weight:600; letter-spacing:1px; }
.xp-home .lead{ color:var(--xp-ink2); }

/* 降低动态偏好：关闭天光漂浮与过渡 */
@media (prefers-reduced-motion: reduce){
  .xwp-topnav, .xwp-topnav .xp-login, .xwp-topnav .xp-links a::after{ transition:none; }
}

/* ============================================================
   沉浸式首屏（首页 .xp-hero）· 全息动态版
   左主标题 + 右星盘（神经元网络 / 量子叠加态 / 能量波 动态叠加）
   + 顶维度字句 + 底全息横幅，星盘上方留白大幅压缩。
   字体层级：kicker(13) < sub(16) ≈ cta(15) << 箴言(超大)，强对比。
   ============================================================ */
.xp-hero{
  position:relative; min-height:100vh; min-height:100svh;
  display:flex; flex-direction:column; justify-content:center;
  background:#0A0A0A; overflow:hidden;
  padding:74px clamp(24px, 6vw, 72px) 64px;   /* 顶部留白压缩，星盘上移 */
}
.xp-hero .stars{ position:absolute; inset:0; width:100%; height:100%; z-index:0; display:block; }
.xp-hero .hero-vignette{ position:absolute; inset:0; z-index:1; pointer-events:none;
  background:radial-gradient(120% 90% at 50% 50%, rgba(124,140,255,.07), transparent 55%),
             radial-gradient(140% 120% at 50% 42%, transparent 38%, rgba(0,0,0,.6) 100%); }

/* 顶部维度字句（神经元 · 量子 · 叠加态 · 动态平衡） */
.hero-topline{
  position:relative; z-index:2;
  display:flex; flex-wrap:wrap; gap:14px 34px; align-items:center;
  max-width:1200px; width:100%; margin:0 auto 30px;
  font-size:12.5px; letter-spacing:2px; color:rgba(233,228,255,.55);
}
.tl-item{ display:inline-flex; align-items:center; gap:9px; }
.tl-dot{ width:5px; height:5px; border-radius:50%; background:var(--xp-gold); box-shadow:0 0 8px rgba(231,200,137,.9); }

/* 主区：左文字 + 右星盘 */
.hero-main{
  position:relative; z-index:2;
  max-width:1200px; width:100%; margin:0 auto;
  display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(28px, 5vw, 72px);
  align-items:center;
}

/* 左：主标题（左对齐，冲击力更强） */
.xp-hero-text{ position:relative; z-index:2; text-align:left; }
.xp-kicker{ font-size:13px; letter-spacing:5px; color:var(--xp-gold); margin-bottom:24px; }
.xp-title{
  font-family:var(--xp-serif); font-weight:600; margin:0;
  font-size:clamp(2.4rem, 6.2vw, 4.6rem); line-height:1.2; letter-spacing:3px; color:var(--xp-ink);
}
.xp-title .g{
  background:linear-gradient(120deg,#f6e9c4,var(--xp-gold) 55%,#c9b0f0);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.xp-sub{ margin:26px 0 0; font-size:16px; letter-spacing:2px; color:var(--xp-ink2); }
.xp-cta{ margin-top:40px; display:flex; gap:16px; flex-wrap:wrap; }
.xp-btn{
  font-family:var(--xp-sans); text-decoration:none; font-size:15px; letter-spacing:2px;
  padding:14px 40px; border-radius:999px;
  transition:transform .25s var(--xp-ease), background .25s, border-color .25s, box-shadow .25s;
}
.xp-btn-gold{
  background:linear-gradient(135deg,#C98E2E,#A4630F 55%,#6E4A0C); color:#fff;
  box-shadow:0 10px 26px -8px rgba(201,142,46,.55);
}
.xp-btn-gold:hover{ transform:translateY(-2px); box-shadow:0 16px 32px -8px rgba(201,142,46,.7); }
.xp-btn-ghost{ border:1px solid var(--xp-line); color:var(--xp-ink); background:rgba(255,255,255,.04); }
.xp-btn-ghost:hover{ transform:translateY(-2px); border-color:var(--xp-gold-dim); background:rgba(255,255,255,.07); }

/* 右：星盘容器（神经元 + 量子叠加态 + 能量波） */
.totem-stage{ position:relative; z-index:2; display:flex; align-items:center; justify-content:center;
  padding:12px 0; }
.xp-hero .totem{ width:min(40vmin, 320px); height:min(40vmin, 320px); }

/* 量子叠加态：多层轨道干涉（波函数叠加的视觉隐喻） */
.quantum-layer{ position:absolute; inset:0; pointer-events:none; z-index:1; }
.q-orb{ position:absolute; left:50%; top:50%; border-radius:50%;
  border:1px solid rgba(168,119,255,.5);
  transform:translate(-50%,-50%);
  animation:qspin 9s linear infinite; }
.q1{ width:64%; height:34%; filter:blur(1px);
  box-shadow:0 0 18px rgba(124,140,255,.5), inset 0 0 18px rgba(124,140,255,.25); }
.q2{ width:44%; height:74%; animation-duration:13s; animation-direction:reverse;
  border-color:rgba(231,200,137,.4);
  box-shadow:0 0 18px rgba(231,200,137,.35), inset 0 0 18px rgba(231,200,137,.18); }
.q3{ width:82%; height:24%; animation-duration:17s;
  border-color:rgba(190,180,255,.35); box-shadow:0 0 22px rgba(168,119,255,.3); }
@keyframes qspin{ from{ transform:translate(-50%,-50%) rotate(0deg); } to{ transform:translate(-50%,-50%) rotate(360deg); } }

/* 能量波：核心向外扩散（人生动态平衡的意象） */
.wave{ position:absolute; left:50%; top:50%; width:40%; height:40%;
  transform:translate(-50%,-50%); pointer-events:none; z-index:2; }
.wave-ring{ position:absolute; left:50%; top:50%; width:100%; height:100%;
  transform:translate(-50%,-50%) scale(.2); border-radius:50%;
  border:1px solid rgba(180,190,255,.55);
  animation:wavePulse 3.6s ease-out infinite; opacity:0; }
.wave-ring:nth-child(2){ animation-delay:1.2s; }
.wave-ring:nth-child(3){ animation-delay:2.4s; }
@keyframes wavePulse{
  0%{ transform:translate(-50%,-50%) scale(.25); opacity:.7; border-width:2px; }
  100%{ transform:translate(-50%,-50%) scale(3.2); opacity:0; border-width:1px; }
}

/* 神经元网络 canvas：铺满星盘，位于环与核心之间 */
.neural{ position:absolute; inset:-6%; width:112%; height:112%; z-index:2; pointer-events:none; }

/* 星盘四向维度标注 */
.dim-pos{ position:absolute; z-index:3; font-size:11px; letter-spacing:2px;
  color:rgba(214,222,255,.5); pointer-events:none;
  padding:4px 10px; border:1px solid rgba(124,140,255,.18); border-radius:999px;
  background:rgba(10,9,22,.42); backdrop-filter:blur(4px); white-space:nowrap; }
.dim-nw{ left:0; top:7%; }
.dim-ne{ right:0; top:7%; }
.dim-sw{ left:2%; bottom:5%; }
.dim-se{ right:0; bottom:5%; }

/* 底部全息横幅 */
.hero-base{ position:relative; z-index:2; max-width:1200px; width:100%; margin:28px auto 0;
  display:flex; align-items:center; justify-content:center; gap:14px;
  font-size:12px; letter-spacing:3px; color:rgba(200,205,235,.45); }
.hb-mark{ font-family:var(--xp-serif); font-size:16px; font-weight:700; color:var(--xp-gold);
  letter-spacing:2px; text-shadow:0 0 14px rgba(231,200,137,.6); }
.hb-line{ display:flex; align-items:center; gap:12px; }
.hb-line::before,.hb-line::after{ content:""; height:1px; width:34px;
  background:linear-gradient(90deg,transparent,rgba(231,200,137,.5)); }
.hb-line::after{ background:linear-gradient(270deg,transparent,rgba(231,200,137,.5)); }
.hb-arrow{ color:var(--xp-gold); font-size:14px; }

.xp-hero .scroll-hint{ position:absolute; left:50%; bottom:max(20px,3.4vmin); transform:translateX(-50%); z-index:3;
  letter-spacing:.5em; text-indent:.5em; font-size:12px; color:rgba(255,255,255,.25); }

/* 移动端：垂直节奏重构 + 星盘加大 + 清理误入的浮动按钮，重心稳、有气派 */
@media (max-width:900px){
  /* 顶部品牌区轻微压暗，文字不被星空吃掉 */
  .xp-home .xwp-topnav{ background:linear-gradient(180deg, rgba(10,9,22,.78), rgba(10,9,22,0)); }
  /* 隐藏误入 hero 的浮动小按钮（app-shell 把分享/建议 fallback 塞进了 header.xp-hero），保持沉浸干净 */
  .xp-home .xwp-abar-acts, .xp-home .xwp-act,
  .xp-home .xwp-totop, .xp-home #xwp-fb-btn, .xp-home #xwp-share-btn,
  .xp-home .toc-toggle{ display:none !important; }

  .xp-hero{ justify-content:flex-start; padding:92px 22px 150px; }
  .hero-topline{ justify-content:center; gap:10px 22px; margin-bottom:22px; font-size:11.5px; }
  .hero-main{ grid-template-columns:1fr; gap:26px; }
  .xp-hero-text{ text-align:center; }
  .xp-hero .totem{ width:min(62vw, 300px); height:min(62vw, 300px); }
  .xp-hero .totem-aura{ inset:-30%; filter:blur(26px); }
  .xp-kicker{ font-size:12.5px; margin-bottom:20px; }
  .xp-title{ font-size:clamp(2.3rem, 10.5vw, 3.2rem); letter-spacing:2px; }
  .xp-sub{ font-size:15px; margin-top:22px; letter-spacing:1.5px; }
  .xp-cta{ margin-top:34px; justify-content:center; }
  .xp-cta .xp-btn{ padding:14px 34px; font-size:15px; }
  .dim-nw{ left:0; top:5%; } .dim-ne{ right:0; top:5%; }
  .dim-sw{ left:0; bottom:3%; } .dim-se{ right:0; bottom:3%; }
  .hero-base{ margin-top:20px; flex-wrap:wrap; gap:8px 12px; font-size:11px; letter-spacing:2px; }
  .hb-line::before,.hb-line::after{ width:20px; }
  /* 移动端底部 tab 占满宽度，图标+文字横排更从容（APP 风） */
  .xwp-mtab{ left:12px; right:12px; transform:none; }
  .xwp-mtab .tab{ flex:1; justify-content:center; padding-left:4px; padding-right:4px; }
}

/* 降低动态偏好：关闭星空/神经元 canvas 与波动动画（性能与晕动友好） */
@media (prefers-reduced-motion: reduce){
  .xp-hero .stars, .xp-hero .neural{ display:none; }
  .q-orb, .wave-ring{ animation:none; opacity:.35; }
  .ring-outer, .ring-mid, .ring-inner, .core, .scroll-hint, .sweep{ animation:none; }
  .core{ opacity:.85; } .sweep{ opacity:0; }
}

/* ============ 宇宙星空 · 浩然正气增强（v2.5 2026-09-01） ============ */
/* 星云层：宇宙星空背景（紫金星云 + 深空微光），缓慢漂移 */
.cosmic-mist{ position:absolute; inset:0; z-index:0; pointer-events:none; overflow:hidden;
  background:
    radial-gradient(42% 36% at 18% 30%, rgba(124,140,255,.15), transparent 70%),
    radial-gradient(50% 42% at 82% 24%, rgba(168,119,255,.13), transparent 70%),
    radial-gradient(46% 40% at 72% 78%, rgba(231,200,137,.08), transparent 70%),
    radial-gradient(40% 34% at 26% 74%, rgba(91,200,216,.07), transparent 70%),
    radial-gradient(34% 30% at 50% 50%, rgba(160,175,255,.05), transparent 70%);
  filter:blur(2px);
  animation:cosmicDrift 26s ease-in-out infinite alternate;
}
/* 星系旋涡：偏心星云缓慢自转（真宇宙 · 星系在波动） */
.cosmic-mist::before{ content:""; position:absolute; inset:-12%;
  background:
    radial-gradient(26% 20% at 32% 40%, rgba(160,178,255,.17), transparent 70%),
    radial-gradient(22% 26% at 70% 28%, rgba(231,200,137,.10), transparent 70%),
    radial-gradient(18% 30% at 60% 74%, rgba(168,119,255,.13), transparent 70%),
    radial-gradient(24% 18% at 22% 78%, rgba(120,190,220,.08), transparent 70%);
  filter:blur(3px);
  animation:nebulaRotate 64s linear infinite;
}
/* 星河带：斜向光带缓缓漂移（银河横贯） */
.cosmic-mist::after{ content:""; position:absolute; inset:0;
  background:linear-gradient(112deg, transparent 30%, rgba(205,216,255,.10) 46%, rgba(231,200,137,.06) 53%, transparent 68%);
  filter:blur(5px);
  animation:nebulaDrift 36s ease-in-out infinite alternate;
}
@keyframes nebulaRotate{ from{ transform:rotate(0deg) scale(1); } to{ transform:rotate(360deg) scale(1.14); } }
@keyframes nebulaDrift{ from{ transform:translateX(-1.8%) scale(1); } to{ transform:translateX(1.8%) scale(1.07); } }
@keyframes cosmicDrift{
  from{ transform:translate3d(-1.2%,-1%,0) scale(1); }
  to  { transform:translate3d(1.2%,1%,0) scale(1.05); }
}
/* 灵气汇聚画布：背景与内容之间，丝缕向星盘聚拢 */
.xp-hero .aura{ position:absolute; inset:0; width:100%; height:100%; z-index:1; pointer-events:none; display:block; }
/* 浩然正气：星盘核心外一圈极淡金气（慢呼吸），灵气聚拢之所在 */
.aura-core{ position:absolute; left:50%; top:50%; width:38%; height:38%;
  transform:translate(-50%,-50%); border-radius:50%; pointer-events:none; z-index:1;
  background:radial-gradient(circle, rgba(255,226,170,.20), rgba(231,200,137,.08) 46%, transparent 70%);
  filter:blur(10px);
  animation:auraBreath 5.2s ease-in-out infinite;
}
@keyframes auraBreath{
  0%,100%{ opacity:.55; transform:translate(-50%,-50%) scale(.94); }
  50%    { opacity:1;   transform:translate(-50%,-50%) scale(1.06); }
}
/* 降低动态偏好：关闭星云漂移与灵气动画 */
@media (prefers-reduced-motion: reduce){
  .cosmic-mist, .cosmic-mist::before, .cosmic-mist::after{ animation:none; }
  .xp-hero .aura{ display:none; }
  .aura-core{ animation:none; opacity:.4; }
}