/* ==========================================================================
   武风·少年馆 — 基础层
   设计语言：宣纸底 / 墨色骨架 / 朱砂点睛 / 鎏金细节 / 段位色编码
   ========================================================================== */

:root{
  /* 墨 —— 结构性深色 */
  --ink:      #1A1613;
  --ink-2:    #3E362E;
  --ink-3:    #6F6255;
  --ink-4:    #9C8E7E;
  --ink-5:    #C3B8A8;

  /* 纸 —— 暖白背景层 */
  --paper:    #F4F0E7;
  --paper-2:  #EDE7DA;
  --paper-3:  #E4DCCC;
  --card:     #FFFFFF;
  --card-2:   #FBF8F2;

  /* 线 */
  --line:     #E5DDCB;
  --line-2:   #D5C9B2;
  --line-3:   #BFAE92;

  /* 朱砂 —— 品牌强调 */
  --cinnabar:   #C1382C;
  --cinnabar-d: #9A2A20;
  --cinnabar-l: #F8E7E4;
  --cinnabar-b: #EFC9C3;

  /* 鎏金 */
  --gold:     #C79A45;
  --gold-l:   #F7EFDC;
  --gold-d:   #96712A;
  --gold-b:   #E7D3A6;

  /* 青碧 / 靛蓝 —— 辅助语义色 */
  --jade:     #2E6B54;
  --jade-l:   #E4F0EA;
  --jade-b:   #BBD9CC;
  --indigo:   #2B4568;
  --indigo-l: #E7ECF4;
  --indigo-b: #C3D0E2;
  --warn:     #B87413;
  --warn-l:   #FBEFD8;
  --warn-b:   #EBD3A4;

  /* 尺寸 */
  --r-xs:4px; --r-s:6px; --r-m:10px; --r-l:14px; --r-xl:20px;
  --nav-w:236px;
  --nav-w-min:64px;
  --top-h:58px;

  /* 间距刻度（8 的倍数，四舍五入到 4 的倍数） */
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:20px; --sp-6:24px; --sp-7:32px;

  /* 字号刻度 */
  --fs-xs:11px; --fs-sm:12px; --fs-md:13px; --fs-lg:15px; --fs-xl:20px;

  /* 阴影 */
  --sh-1: 0 1px 2px rgba(26,22,19,.05);
  --sh-2: 0 2px 6px rgba(26,22,19,.05), 0 14px 30px -18px rgba(26,22,19,.30);
  --sh-3: 0 8px 20px rgba(26,22,19,.08), 0 30px 60px -24px rgba(26,22,19,.36);
  --sh-in: inset 0 1px 0 rgba(255,255,255,.5);

  /* 字体 */
  --f-serif: "Source Han Serif SC","Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --f-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,"Segoe UI",system-ui,sans-serif;
  --f-num: Georgia,"Times New Roman","Songti SC",serif;

  /* 段位色（全局编码语言） */
  --belt-white:  #D8D1C2; --belt-white-i:#4A4038;
  --belt-yellow: #E0A63C; --belt-yellow-i:#5A3B0C;
  --belt-green:  #3C8B5A; --belt-green-i:#0F3A22;
  --belt-blue:   #2E6FA6; --belt-blue-i:#0D2A44;
  --belt-purple: #7A4FA3; --belt-purple-i:#2F1449;
  --belt-brown:  #7A5236; --belt-brown-i:#2C1A0D;
  --belt-black:  #24211E; --belt-black-i:#D9B970;
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:var(--fs-md);
  line-height:1.6;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-weight:600;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
table{border-collapse:collapse;width:100%}
::selection{background:var(--gold-b);color:var(--ink)}

.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.serif{font-family:var(--f-serif)}
.mono-num{font-variant-numeric:tabular-nums}

/* 滚动条 */
*::-webkit-scrollbar{width:9px;height:9px}
*::-webkit-scrollbar-track{background:transparent}
*::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:9px;border:2px solid transparent;background-clip:padding-box}
*::-webkit-scrollbar-thumb:hover{background:var(--ink-5);background-clip:padding-box}

/* ===================== 应用骨架 ===================== */
.app{display:flex;min-height:100vh;background:
  radial-gradient(1200px 500px at 88% -8%, rgba(199,154,69,.10), transparent 60%),
  radial-gradient(900px 420px at -6% 108%, rgba(193,56,44,.07), transparent 62%),
  var(--paper);
}
.main{flex:1;min-width:0;display:flex;flex-direction:column}

/* ===================== 侧边导航 ===================== */
.sidebar{
  width:var(--nav-w);flex:0 0 var(--nav-w);
  background:
    linear-gradient(178deg,#221C17 0%,#191512 58%,#141110 100%);
  color:#EDE3D3;
  display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;align-self:flex-start;overflow:hidden;
  z-index:30;
  box-shadow:inset -1px 0 0 rgba(255,255,255,.05), 4px 0 24px -12px rgba(26,22,19,.5);
}
.sidebar::after{ /* 回纹暗纹 */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.16;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='28' height='14' viewBox='0 0 28 14'><path d='M0 13V3h5v7h4V5h4v8h6V6h9' fill='none' stroke='%23C79A45' stroke-width='1'/></svg>");
  background-repeat:repeat-y;background-size:28px 14px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 62%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 62%);
}
.brand{display:flex;align-items:center;gap:11px;padding:17px 18px 15px;position:relative;z-index:2}
.seal{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  background:linear-gradient(150deg,#D4463A,#A82B21);
  color:#FFF4E6;font-family:var(--f-serif);font-size:21px;font-weight:700;
  border-radius:7px;letter-spacing:0;
  box-shadow:0 3px 10px rgba(168,43,33,.5), inset 0 0 0 1px rgba(255,225,190,.35);
  text-shadow:0 1px 2px rgba(0,0,0,.3);
}
.brand-txt{min-width:0}
.brand-name{font-family:var(--f-serif);font-size:15.5px;font-weight:700;letter-spacing:.06em;color:#F5E9D6}
.brand-sub{font-size:10.5px;color:#8E8070;letter-spacing:.16em;margin-top:1px}

.nav{flex:1;overflow-y:auto;padding:6px 10px 10px;position:relative;z-index:2}
.nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);background-clip:padding-box}
.nav-group{margin:14px 0 6px;padding:0 10px;font-size:10.5px;letter-spacing:.2em;color:#6C6153}
.nav-group:first-child{margin-top:4px}
.nav-item{
  display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--r-s);
  color:#B9AC9B;font-size:13px;position:relative;transition:background .14s,color .14s;
  width:100%;text-align:left;
}
.nav-item:hover{background:rgba(255,255,255,.05);color:#EFE4D4}
.nav-item .ni-ico{width:19px;height:19px;flex:0 0 19px;display:grid;place-items:center;opacity:.85}
.nav-item .ni-ico svg{width:17px;height:17px}
.nav-item .ni-txt{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item .ni-badge{
  font-size:10.5px;line-height:1;padding:3px 6px;border-radius:20px;
  background:rgba(193,56,44,.9);color:#fff;font-weight:600;min-width:17px;text-align:center;
}
.nav-item.on{background:linear-gradient(90deg,rgba(193,56,44,.22),rgba(193,56,44,.05));color:#FDF3E2;font-weight:600}
.nav-item.on .ni-ico{opacity:1;color:#F0A79E}
.nav-item.on::before{
  content:"";position:absolute;left:-10px;top:7px;bottom:7px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,#E0574A,#A82B21);box-shadow:0 0 10px rgba(224,87,74,.7);
}
.nav-item.on::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-s);pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(224,87,74,.25);
}
.nav-foot{padding:8px 10px 12px;position:relative;z-index:2}
.fret-rule{height:14px;opacity:.5;margin-bottom:9px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='28' height='14' viewBox='0 0 28 14'><path d='M0 13V3h5v7h4V5h4v8h6V6h9' fill='none' stroke='%23C79A45' stroke-width='1'/></svg>");
  background-repeat:repeat-x;}
.staff-card{display:flex;align-items:center;gap:9px;padding:8px 9px;border-radius:var(--r-s);background:rgba(255,255,255,.045)}
.staff-meta{min-width:0}
.staff-name{font-size:12.5px;color:#EBE0D0;display:flex;align-items:center;gap:6px}
.staff-role{font-size:10px;color:#8C7E6D;border:1px solid rgba(255,255,255,.14);padding:1px 5px;border-radius:3px}
.staff-sub{font-size:10.5px;color:#7E7161;margin-top:1px}

/* 收起态 */
.app.nav-mini .sidebar{width:var(--nav-w-min);flex-basis:var(--nav-w-min)}
.app.nav-mini .brand-txt,.app.nav-mini .nav-item .ni-txt,.app.nav-mini .nav-item .ni-badge,
.app.nav-mini .nav-group,.app.nav-mini .staff-meta,.app.nav-mini .fret-rule{display:none}
.app.nav-mini .nav-item{justify-content:center;padding:10px 0}
.app.nav-mini .brand{justify-content:center;padding:17px 0 15px}
.app.nav-mini .staff-card{justify-content:center}

/* ===================== 顶栏 ===================== */
.topbar{
  height:var(--top-h);flex:0 0 var(--top-h);
  display:flex;align-items:center;gap:16px;padding:0 18px 0 14px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:25;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-center{flex:1;display:flex;justify-content:center;min-width:0}
.topbar-right{display:flex;align-items:center;gap:9px}
.crumb{display:flex;align-items:center;gap:8px;min-width:0}
.crumb .c-title{font-family:var(--f-serif);font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.crumb .c-sub{font-size:11.5px;color:var(--ink-4);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb .sep{color:var(--line-3);font-size:11px}

.today-chip{
  font-size:11.5px;color:var(--ink-3);padding:5px 10px;border:1px solid var(--line);
  border-radius:20px;background:var(--card-2);white-space:nowrap;
}
.today-chip b{color:var(--ink);font-weight:600}
.icon-btn{
  width:32px;height:32px;border-radius:var(--r-s);display:grid;place-items:center;
  color:var(--ink-3);position:relative;transition:background .14s,color .14s;
}
.icon-btn:hover{background:var(--paper-2);color:var(--ink)}
.bell .dot{position:absolute;top:5px;right:5px;width:7px;height:7px;border-radius:50%;background:var(--cinnabar);border:1.5px solid #fff}

/* 全局搜索 */
.gsearch{position:relative;width:min(430px,100%)}
.gsearch input{
  width:100%;height:33px;padding:0 62px 0 32px;border-radius:var(--r-s);
  border:1px solid var(--line);background:var(--card-2);font-size:12.5px;outline:none;
  transition:border-color .15s,background .15s,box-shadow .15s;
}
.gsearch input:focus{border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px rgba(199,154,69,.14)}
.gsearch input::-webkit-search-cancel-button{display:none}
.gs-ico{position:absolute;left:10px;top:9px;color:var(--ink-4);pointer-events:none}
.gsearch kbd{
  position:absolute;right:8px;top:7px;font-family:var(--f-sans);font-size:10px;color:var(--ink-4);
  border:1px solid var(--line-2);border-bottom-width:2px;border-radius:4px;padding:2px 5px;background:#fff;
}
.gsearch-pop{
  display:none;position:absolute;top:40px;left:0;right:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-3);overflow:hidden;z-index:60;max-height:390px;overflow-y:auto;
}
.gsearch-pop.on{display:block}
.gs-row{display:flex;align-items:center;gap:9px;padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--paper-2)}
.gs-row:last-child{border-bottom:0}
.gs-row:hover,.gs-row.on{background:var(--paper)}
.gs-row .gs-kind{font-size:10px;color:var(--ink-4);border:1px solid var(--line-2);padding:1px 5px;border-radius:3px}
.gs-row .gs-name{flex:1;font-size:13px}
.gs-row .gs-meta{font-size:11px;color:var(--ink-4)}
.gs-empty{padding:16px;text-align:center;color:var(--ink-4);font-size:12.5px}

/* ===================== 视图容器 ===================== */
.view{flex:1;min-width:0;overflow-x:hidden}
.page{padding:var(--sp-4) var(--sp-5) var(--sp-7);max-width:1560px;margin:0 auto}
.page-head{display:flex;align-items:flex-end;gap:var(--sp-4);margin-bottom:var(--sp-4);flex-wrap:wrap}
.page-head .ph-l{min-width:0;flex:1}
.page-head h1{font-family:var(--f-serif);font-size:var(--fs-xl);letter-spacing:.04em;display:flex;align-items:center;gap:9px;line-height:1.3}
.page-head .ph-desc{font-size:var(--fs-sm);color:var(--ink-4);margin-top:3px;max-width:760px;line-height:1.6}
.page-head .ph-r{display:flex;gap:var(--sp-2);align-items:center;flex-wrap:wrap}

.section{margin-top:var(--sp-5)}
.section-head{display:flex;align-items:center;gap:10px;margin-bottom:var(--sp-3)}
.section-head h2{font-family:var(--f-serif);font-size:var(--fs-lg);letter-spacing:.05em;display:flex;align-items:center;gap:8px}
.section-head .sh-line{flex:1;height:1px;background:linear-gradient(90deg,var(--line-2),transparent)}
.section-head .sh-extra{font-size:var(--fs-sm);color:var(--ink-4)}

.grid{display:grid;gap:var(--sp-4)}
.g-top{align-items:start}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-5{grid-template-columns:repeat(5,minmax(0,1fr))}
.g-2-1{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}
.g-1-2{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}
.g-3-2{grid-template-columns:minmax(0,3fr) minmax(0,2fr)}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.spacer{flex:1}
@media (max-width:1320px){
  .g-5{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1080px){
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g-5{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:980px){
  .g-3,.g-2-1,.g-1-2,.g-3-2{grid-template-columns:1fr}
  .g-5,.g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:720px){
  .g-2,.g-4,.g-5{grid-template-columns:1fr}
  .page{padding:14px 12px 32px}
}

/* 顶栏在窄屏收敛，避免元素互相挤压 */
@media (max-width:900px){
  .today-chip{display:none}
  .gsearch kbd{display:none}
  .gsearch{width:auto;flex:1;min-width:0}
  .topbar-center{flex:1 1 auto}
  .crumb .c-sub{display:none}
}
@media (max-width:680px){
  .topbar{gap:8px;padding:0 10px}
  .crumb{display:none}
  .gsearch input{padding-right:10px}
  .page-head h1{font-size:19px}
}