/* ============================================================
   行者 OS · SURVIVOR OS
   社会生存手册 —— 视觉系统
   「司南罗盘 × 雷达探测」暗色操作界面
   ============================================================ */

:root{
  /* 底 —— 深空 */
  --bg:        #0A0C10;
  --bg-veil:   #07090C;
  --panel:     #10141A;
  --panel-2:   #151A22;
  --panel-3:   #1B222C;
  --deep:      #05070A;

  /* 字 —— 宣纸 */
  --txt:       #E9E3D6;
  --txt-2:     #9A9382;
  --txt-3:     #6A6559;

  /* 彩 —— 黄铜 / 朱砂 / 雷达青 */
  --gold:      #C8A96A;
  --gold-dim:  #8A7444;
  --cinnabar:  #D2503A;
  --teal:      #4FB3B0;
  --jade:      #6FA96F;
  --violet:    #9A8CC4;
  --azure:     #4E8BD1;

  --line:      rgba(200,169,106,.16);
  --line-2:    rgba(200,169,106,.30);
  --glow:      rgba(200,169,106,.14);

  --r:   4px;
  --r-lg: 8px;
  --nav-w: 232px;

  --serif: "Songti SC","STSong","Source Han Serif SC","Noto Serif SC","SimSun",Georgia,serif;
  --sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --mono: "SF Mono","JetBrains Mono","Cascadia Code",Consolas,"Courier New",monospace;
}

/* 亮色（宣纸）主题 */
html[data-theme="light"]{
  --bg:        #EFEAE0;
  --bg-veil:   #E4DED2;
  --panel:     #F7F3EA;
  --panel-2:   #EFE9DC;
  --panel-3:   #E6DFD1;
  --deep:      #DED7C8;

  --txt:       #23262B;
  --txt-2:     #6B6659;
  --txt-3:     #948D7C;

  --gold:      #9A7530;
  --gold-dim:  #C2A468;
  --cinnabar:  #B8391F;
  --teal:      #2F8A87;
  --jade:      #4C8A4C;
  --violet:    #6F5FA8;
  --azure:     #2F6BAE;

  --line:      rgba(50,40,20,.16);
  --line-2:    rgba(50,40,20,.30);
  --glow:      rgba(154,117,48,.10);
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.75;
  overflow-x:hidden;
  transition:background .5s ease,color .5s ease;
  -webkit-font-smoothing:antialiased;
}

/* ---------- 全局背景层 ---------- */
#stage-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
#starfield{position:absolute;inset:0;width:100%;height:100%;opacity:.85}
.grid-veil{
  position:absolute;inset:0;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 30%,#000 0%,transparent 78%);
  opacity:.55;
}
.aura{
  position:absolute;border-radius:50%;filter:blur(90px);opacity:.30;
  animation:drift 24s ease-in-out infinite alternate;
}
.aura.a1{width:520px;height:520px;left:-140px;top:-160px;background:var(--gold)}
.aura.a2{width:460px;height:460px;right:-120px;top:20%;background:var(--teal);animation-delay:-8s;opacity:.18}
.aura.a3{width:420px;height:420px;left:35%;bottom:-200px;background:var(--cinnabar);animation-delay:-15s;opacity:.14}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(50px,-40px) scale(1.14)}}

/* 背景巨型罗盘 */
.bg-compass{
  position:absolute;right:-160px;bottom:-160px;width:640px;height:640px;
  opacity:.5;animation:spin 240s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
html[data-theme="light"] .bg-compass{opacity:.28}

/* 扫描线 */
.scanline{
  position:absolute;left:0;right:0;height:180px;top:-180px;
  background:linear-gradient(to bottom,transparent,rgba(200,169,106,.045) 70%,rgba(200,169,106,.10) 92%,transparent);
  animation:scanMove 11s linear infinite;
}
@keyframes scanMove{0%{transform:translateY(0)}100%{transform:translateY(calc(100vh + 360px))}}

/* ---------- 启动屏 ---------- */
#boot{
  position:fixed;inset:0;z-index:9999;background:var(--deep);
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  font-family:var(--mono);color:var(--gold);
  transition:opacity .7s ease,visibility .7s;
}
#boot.gone{opacity:0;visibility:hidden}
.boot-ring{width:150px;height:150px;margin-bottom:26px;position:relative}
.boot-ring svg{width:100%;height:100%;animation:spin 8s linear infinite}
.boot-pct{font-size:12px;letter-spacing:.34em;margin-bottom:22px;text-transform:uppercase}
.boot-log{height:150px;width:min(560px,86vw);font-size:11.5px;line-height:1.95;color:var(--txt-2);overflow:hidden}
.boot-log div{opacity:0;animation:logIn .28s forwards}
@keyframes logIn{from{opacity:0;transform:translateX(-6px)}to{opacity:1;transform:none}}
.boot-log .ok{color:var(--teal)}
.boot-title{
  position:absolute;bottom:34px;font-family:var(--serif);font-size:12px;letter-spacing:.6em;
  color:var(--txt-3);text-transform:none;
}

/* ---------- 布局 ---------- */
#shell{position:relative;z-index:1;display:flex;min-height:100vh}

/* 侧边罗盘导航 */
#nav{
  width:var(--nav-w);flex:0 0 var(--nav-w);
  position:sticky;top:0;height:100vh;
  border-right:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,20,26,.92),rgba(10,12,16,.96));
  backdrop-filter:blur(12px);
  display:flex;flex-direction:column;
  z-index:50;
}
html[data-theme="light"] #nav{background:linear-gradient(180deg,rgba(247,243,234,.94),rgba(239,234,220,.96))}

.brand{padding:26px 22px 20px;border-bottom:1px solid var(--line);position:relative}
.brand-mark{display:flex;align-items:center;gap:11px}
.brand-mark svg{width:36px;height:36px;flex:0 0 36px;animation:spin 46s linear infinite}
.brand-txt h1{
  font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.16em;
  color:var(--txt);line-height:1.25;
}
.brand-txt .en{
  font-family:var(--mono);font-size:9px;letter-spacing:.3em;color:var(--gold);
  text-transform:uppercase;margin-top:2px;
}
.brand-sub{font-size:10.5px;color:var(--txt-3);margin-top:11px;letter-spacing:.12em;font-family:var(--mono)}

.nav-list{flex:1;overflow-y:auto;padding:14px 12px 8px}
.nav-cap{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.28em;color:var(--txt-3);
  padding:14px 12px 7px;text-transform:uppercase;
}
.nav-item{
  display:flex;align-items:center;gap:12px;padding:9px 12px;margin-bottom:2px;
  border-radius:var(--r);cursor:pointer;color:var(--txt-2);
  font-size:13.5px;letter-spacing:.06em;position:relative;
  transition:color .22s,background .22s;user-select:none;
}
.nav-item svg{width:19px;height:19px;flex:0 0 19px;opacity:.72;transition:opacity .22s,transform .3s}
.nav-item:hover{color:var(--txt);background:rgba(200,169,106,.055)}
.nav-item:hover svg{opacity:1;transform:scale(1.1)}
.nav-item.on{color:var(--gold);background:rgba(200,169,106,.10)}
.nav-item.on svg{opacity:1}
.nav-item.on::before{
  content:'';position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:3px;height:19px;background:var(--gold);border-radius:2px;
  box-shadow:0 0 12px var(--gold);
}
.nav-item .badge{
  margin-left:auto;font-family:var(--mono);font-size:9.5px;color:var(--txt-3);
  background:rgba(200,169,106,.10);padding:1px 6px;border-radius:9px;
}
.nav-foot{padding:12px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:center}
.icn-btn{
  width:32px;height:32px;border-radius:var(--r);border:1px solid var(--line);
  display:grid;place-items:center;cursor:pointer;background:transparent;color:var(--txt-2);
  transition:.22s;flex:0 0 32px;
}
.icn-btn:hover{border-color:var(--line-2);color:var(--gold);background:rgba(200,169,106,.07)}
.icn-btn svg{width:16px;height:16px}
.nav-foot .tip{font-size:10px;color:var(--txt-3);font-family:var(--mono);letter-spacing:.1em}

/* 主区 */
#main{flex:1;min-width:0;position:relative}
#view{padding:0 0 80px;animation:reveal .55s cubic-bezier(.22,1,.36,1)}
@keyframes reveal{
  0%{opacity:0;clip-path:circle(0% at 50% 42%);transform:scale(.985)}
  100%{opacity:1;clip-path:circle(150% at 50% 42%);transform:none}
}

.wrap{max-width:1160px;margin:0 auto;padding:0 34px}

/* 移动导航 */
#mtop,#mnav{display:none}

/* ---------- 通用元件 ---------- */
.eyebrow{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.34em;color:var(--gold);
  text-transform:uppercase;display:flex;align-items:center;gap:10px;margin-bottom:14px;
}
.eyebrow::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,var(--line-2),transparent)}

h2.t-display{
  font-family:var(--serif);font-size:clamp(28px,4.4vw,44px);font-weight:700;
  letter-spacing:.05em;line-height:1.2;margin-bottom:12px;
}
h3.t-sec{
  font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:.1em;
  margin-bottom:16px;display:flex;align-items:center;gap:10px;
}
h3.t-sec::before{content:'';width:5px;height:19px;background:var(--gold);border-radius:2px}
.lead{color:var(--txt-2);font-size:14.5px;max-width:680px;margin-bottom:8px}

.page-head{padding:46px 0 30px}
.crumb{font-family:var(--mono);font-size:10px;letter-spacing:.24em;color:var(--txt-3);margin-bottom:12px}

/* 卡片 */
.card{
  position:relative;background:linear-gradient(160deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;overflow:hidden;transition:transform .3s cubic-bezier(.22,1,.36,1),border-color .3s,box-shadow .3s;
}
.card::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,50%),rgba(200,169,106,.09),transparent 62%);
  opacity:0;transition:opacity .35s;
}
.card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:0 14px 34px -20px #000}
.card:hover::after{opacity:1}

.btn{
  display:inline-flex;align-items:center;gap:9px;padding:11px 24px;border-radius:var(--r);
  border:1px solid var(--line-2);background:transparent;color:var(--gold);
  font-family:var(--sans);font-size:13.5px;letter-spacing:.14em;cursor:pointer;transition:.25s;
}
.btn:hover{background:rgba(200,169,106,.10);border-color:var(--gold);box-shadow:0 0 24px -8px var(--gold)}
.btn svg{width:15px;height:15px}
.btn.solid{background:var(--gold);color:#0A0C10;border-color:var(--gold);font-weight:600}
.btn.solid:hover{filter:brightness(1.12)}
.btn.sm{padding:7px 15px;font-size:12px}

.tag{
  display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.16em;
  padding:2.5px 9px;border-radius:20px;border:1px solid var(--line);color:var(--txt-2);
}
.seal{
  display:inline-grid;place-items:center;font-family:var(--serif);font-weight:700;
  color:#F4EFE4;background:var(--cinnabar);border-radius:3px;
  width:26px;height:26px;font-size:13px;letter-spacing:0;line-height:1;
  box-shadow:0 0 0 1px rgba(255,255,255,.12) inset;flex:0 0 26px;
}

.divider{height:1px;background:linear-gradient(90deg,var(--line),transparent);margin:30px 0}

/* 统计数字块 */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}
.stat{
  border:1px solid var(--line);border-radius:var(--r-lg);padding:16px 18px;
  background:linear-gradient(160deg,var(--panel-2),var(--panel));position:relative;overflow:hidden;
}
.stat .num{
  font-family:var(--serif);font-size:32px;font-weight:700;color:var(--gold);line-height:1;
  display:flex;align-items:baseline;gap:3px;
}
.stat .num small{font-size:13px;opacity:.65;font-family:var(--mono)}
.stat .lab{font-size:11.5px;color:var(--txt-2);letter-spacing:.14em;margin-top:7px}
.stat::before{
  content:'';position:absolute;right:-24px;top:-24px;width:74px;height:74px;border-radius:50%;
  border:1px solid var(--line);opacity:.7;
}

/* 滚动条 */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(200,169,106,.24);border-radius:9px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:rgba(200,169,106,.42);background-clip:padding-box}

/* 数据条 */
.bar{height:5px;border-radius:5px;background:rgba(200,169,106,.13);overflow:hidden}
.bar > i{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,var(--gold-dim),var(--gold));transition:width 1s cubic-bezier(.22,1,.36,1)}
.bar.teal > i{background:linear-gradient(90deg,#2c6f6d,var(--teal))}
.bar.red > i{background:linear-gradient(90deg,#8b2f1e,var(--cinnabar))}

/* 空状态 */
.empty{text-align:center;padding:60px 20px;color:var(--txt-3);font-family:var(--mono);font-size:12px;letter-spacing:.2em}

/* 响应式 */
@media(max-width:1024px){
  .wrap{padding:0 22px}
}
@media(max-width:860px){
  #nav{display:none}
  #shell{display:block}
  #main{padding-bottom:78px}
  .wrap{padding:0 18px}
  #mtop{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;z-index:60;padding:11px 16px;
    background:rgba(10,12,16,.9);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  html[data-theme="light"] #mtop{background:rgba(239,234,220,.92)}
  #mtop .brand-txt h1{font-size:15px}
  #mtop .brand-mark svg{width:27px;height:27px;flex:0 0 27px}
  #mtop .brand-sub,#mtop .en{display:none}
  #mtop .brand{padding:0;border:none;background:none}
  #mnav{
    display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;
    background:rgba(10,12,16,.94);backdrop-filter:blur(16px);
    border-top:1px solid var(--line);padding:6px 2px calc(6px + env(safe-area-inset-bottom));
    overflow-x:auto;scrollbar-width:none;
  }
  html[data-theme="light"] #mnav{background:rgba(239,234,220,.96)}
  #mnav::-webkit-scrollbar{display:none}
  .m-item{
    flex:1 0 auto;min-width:58px;display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:5px 4px;color:var(--txt-3);cursor:pointer;transition:.2s;
  }
  .m-item svg{width:19px;height:19px}
  .m-item span{font-size:9.5px;letter-spacing:.05em;white-space:nowrap}
  .m-item.on{color:var(--gold)}
  .m-item.on svg{transform:scale(1.12)}
  .page-head{padding:26px 0 20px}
  h2.t-display{font-size:27px}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:420px){
  body{font-size:14.5px}
  .card{padding:17px}
}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}