/* ============================================================
   龙珠主页 · 共享样式表 /assets/site.css
   基线：深夜蓝图黑 + 蓝图坐标网格 + 龙珠橙/神龙绿能量带
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#11141C;
  --ink-deep:#0D1017;
  --panel:#1A2030;
  --fog:#F2F5FA;
  --orange:#FF7A1A;
  --green:#1FA97A;
  --blue:#2FA8FF;
  --violet:#8B5CF6;
  --yellow:#FFD400;
  --mute:#7C8798;
  --pale:#E7EDF6;

  --line:rgba(124,135,152,.26);
  --line-strong:rgba(124,135,152,.48);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --shell:1280px;
  --gutter:clamp(16px,3.2vw,40px);

  --radius-s:6px;
  --radius-m:12px;
  --radius-l:22px;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
*{ margin:0; }
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  background:var(--ink);
}
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--fog);
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(124,135,152,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,135,152,.07) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  background-position:0 0,0 0;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
img,svg,video{ display:block; max-width:100%; }
button,input,select,textarea{ font:inherit; color:inherit; }
ul,ol{ list-style:none; padding:0; }
a{ color:inherit; }
::selection{ background:rgba(255,122,26,.4); color:#fff; }

/* ---------- 3. 焦点与动效基线 ---------- */
:focus{ outline:none; }
:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}

/* ---------- 4. 通用工具 ---------- */
.container{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
}
.mono{
  font-family:var(--font-mono);
  font-weight:500;
  letter-spacing:.08em;
}
.content{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  font-size:17px;
  line-height:1.8;
}
.content p{ margin-block:0 1.15em; }
.content h2,.content h3{ font-family:var(--font-display); line-height:1.35; }
.content a{
  color:var(--blue);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-90px;
  z-index:200;
  display:inline-block;
  padding:12px 22px;
  background:var(--yellow);
  color:var(--ink);
  font-weight:700;
  font-size:15px;
  border-radius:0 0 10px 10px;
  text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{ top:0; }

/* ---------- 6. 头部框架 ---------- */
.site-header{
  position:relative;
  z-index:40;
  color:var(--fog);
  background:linear-gradient(180deg,rgba(26,32,48,.92) 0%,rgba(17,20,28,.98) 100%);
  border-bottom:1px solid var(--line);
}
.site-header::before{
  content:"";
  display:block;
  height:4px;
  background:linear-gradient(90deg,
    var(--orange) 0%,
    var(--yellow) 26%,
    var(--green) 52%,
    var(--blue) 78%,
    var(--violet) 100%);
}
.header-inner{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,32px);
  padding-block:12px;
  min-height:76px;
}

/* 品牌块 */
.brand-block{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  text-decoration:none;
  color:var(--fog);
}
.brand-mark{
  --mark:34px;
  position:relative;
  display:inline-block;
  flex:0 0 auto;
  width:var(--mark);
  height:var(--mark);
  border-radius:50%;
  background:radial-gradient(circle at 32% 28%,#ffe0b0,var(--orange) 56%,#b8460a 100%);
  box-shadow:0 0 0 2px rgba(255,122,26,.24),0 0 18px rgba(255,122,26,.42);
}
.brand-mark::after{
  content:"";
  position:absolute;
  width:calc(var(--mark) * .15);
  height:calc(var(--mark) * .15);
  left:calc(var(--mark) * .29);
  top:calc(var(--mark) * .26);
  border-radius:50%;
  background:var(--yellow);
  box-shadow:
    calc(var(--mark) * .30) 0 0 var(--yellow),
    0 calc(var(--mark) * .30) 0 var(--yellow),
    calc(var(--mark) * .30) calc(var(--mark) * .30) 0 var(--yellow);
}
.brand-mark--sm{
  --mark:20px;
  box-shadow:0 0 0 1px rgba(255,122,26,.3);
  vertical-align:middle;
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.brand-name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  letter-spacing:.03em;
}
.brand-tag{
  font-size:10.5px;
  color:var(--mute);
  margin-top:3px;
}
.version-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px 5px 9px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(17,20,28,.72);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.05em;
  color:rgba(242,245,250,.7);
  white-space:nowrap;
}
.version-pill .mono{
  color:var(--yellow);
  padding-right:8px;
  border-right:1px solid var(--line);
}

/* 导航 */
.nav{
  flex:1 1 auto;
  display:flex;
  justify-content:center;
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  gap:2px;
}
.nav-link{
  display:block;
  padding:9px 14px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:rgba(242,245,250,.82);
  text-decoration:none;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{
  color:var(--fog);
  background:rgba(47,168,255,.12);
  border-color:rgba(47,168,255,.38);
  transform:translateY(-2px);
}
.nav-link[aria-current="page"]{
  color:#210D00;
  background:linear-gradient(135deg,var(--yellow),var(--orange));
  border-color:rgba(255,212,0,.65);
  box-shadow:0 4px 16px rgba(255,122,26,.34);
}

/* 头部右侧 */
.header-aside{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.cta-link{
  display:inline-flex;
  align-items:center;
  padding:8px 16px;
  border-radius:999px;
  background:linear-gradient(135deg,#2FD39A,var(--green));
  color:#04231A;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.cta-link:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 22px rgba(31,169,122,.4);
}
.weekly-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(242,245,250,.72);
  white-space:nowrap;
}
.status-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 4px rgba(31,169,122,.16);
  animation:pulseDot 2.6s var(--ease) infinite;
}
@keyframes pulseDot{
  0%,100%{ opacity:.85; box-shadow:0 0 0 4px rgba(31,169,122,.14); }
  50%{ opacity:1; box-shadow:0 0 0 8px rgba(31,169,122,0); }
}

/* 汉堡按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(26,32,48,.85);
  color:var(--fog);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{ border-color:var(--blue); color:var(--blue); }
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:10px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--ease),top .2s var(--ease);
}
.nav-toggle-bars::before{ top:0; }
.nav-toggle-bars::after{ top:8px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{ top:4px; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{ top:4px; transform:rotate(-45deg); }

/* 坐标刻度线 */
.coord-rule{
  height:12px;
  border-top:1px solid rgba(124,135,152,.22);
  background-image:
    repeating-linear-gradient(to right,rgba(124,135,152,.62) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(to right,rgba(124,135,152,.3) 0 1px,transparent 1px 8px);
  background-size:100% 12px,100% 5px;
  background-repeat:repeat-x,repeat-x;
  background-position:0 0,0 0;
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  color:var(--fog);
  border-top:1px solid var(--line);
  background:
    radial-gradient(120% 60% at 12% 0%,rgba(31,169,122,.15),transparent 62%),
    radial-gradient(110% 70% at 88% 6%,rgba(139,92,246,.17),transparent 66%),
    linear-gradient(180deg,rgba(26,32,48,.55) 0%,var(--ink-deep) 42%);
}
.footer-inner{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  padding-block:clamp(36px,5vw,64px) 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.15fr 1.25fr .95fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.footer-block{ min-width:0; }
.footer-title{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:500;
  letter-spacing:.14em;
  color:rgba(242,245,250,.6);
}
.footer-title .mono{ color:var(--green); font-size:12.5px; }

/* 旧版本区 */
.version-list{
  display:grid;
  gap:8px;
  margin-bottom:18px;
}
.version-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 13px;
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  background:rgba(26,32,48,.6);
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.version-item:hover{
  border-color:rgba(47,168,255,.45);
  background:rgba(47,168,255,.08);
}
.version-item--current{
  border-color:rgba(255,122,26,.55);
  background:rgba(255,122,26,.1);
}
.version-tag{
  font-size:11.5px;
  color:var(--orange);
}
.version-name{ font-size:14px; }
.version-state{
  margin-left:auto;
  font-size:12px;
  color:rgba(242,245,250,.48);
  white-space:nowrap;
}
.footer-cta{
  display:inline-flex;
  align-items:center;
  padding:10px 18px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--yellow),var(--orange));
  color:#210D00;
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.footer-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(255,122,26,.38);
}

/* 更新记录区 */
.log-list{
  display:grid;
  gap:1px;
}
.log-item{
  display:flex;
  align-items:baseline;
  gap:14px;
  padding:9px 0;
  border-bottom:1px dashed rgba(124,135,152,.22);
}
.log-issue{
  flex:0 0 62px;
  font-size:11.5px;
  color:var(--blue);
}
.log-link{
  font-size:14.5px;
  color:rgba(242,245,250,.86);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.log-link:hover{ color:var(--yellow); border-color:currentColor; }

/* 站点速览区 */
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin-bottom:20px;
}
.footer-links a{
  font-size:14px;
  color:rgba(242,245,250,.78);
  text-decoration:none;
  transition:color .18s var(--ease);
}
.footer-links a:hover{ color:var(--blue); }
.footer-contact{
  display:grid;
  gap:7px;
  font-style:normal;
}
.contact-line{
  display:flex;
  gap:10px;
  font-size:13.5px;
  color:rgba(242,245,250,.7);
  line-height:1.6;
}
.contact-line .mono{
  flex:0 0 42px;
  font-size:10.5px;
  color:var(--green);
  padding-top:4px;
}

/* 页脚底栏 */
.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:clamp(28px,4vw,46px);
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:rgba(242,245,250,.55);
}
.footer-base-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
}
.footer-base-meta{
  display:inline-flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.icp{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(242,245,250,.6);
}

/* ---------- 8. 通用按钮 / 胶囊 / 标题组 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:15px;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn--primary{
  background:linear-gradient(135deg,var(--yellow),var(--orange));
  color:#210D00;
  box-shadow:0 6px 18px rgba(255,122,26,.3);
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(255,122,26,.42);
}
.btn--ghost{
  background:rgba(26,32,48,.6);
  border-color:var(--line-strong);
  color:var(--fog);
}
.btn--ghost:hover{
  transform:translateY(-2px);
  border-color:var(--blue);
  color:var(--blue);
}

.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border:1px solid var(--line-strong);
  border-radius:999px;
  background:rgba(47,168,255,.08);
  color:rgba(242,245,250,.88);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  white-space:nowrap;
}
.pill--orange{ border-color:rgba(255,122,26,.5); background:rgba(255,122,26,.13); color:#FFB374; }
.pill--green{ border-color:rgba(31,169,122,.5); background:rgba(31,169,122,.13); color:#56D6A6; }
.pill--violet{ border-color:rgba(139,92,246,.5); background:rgba(139,92,246,.13); color:#B79CF9; }
.pill--yellow{ border-color:rgba(255,212,0,.5); background:rgba(255,212,0,.13); color:var(--yellow); }

.section-head{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:6px 14px;
  margin-bottom:18px;
}
.section-index{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  color:var(--orange);
}
.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  letter-spacing:.01em;
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{
  width:min(100% - (var(--gutter) * 2),var(--shell));
  margin:26px auto 0;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--mute);
}
.breadcrumb li + li::before{
  content:"/";
  margin-right:8px;
  color:rgba(124,135,152,.6);
}
.breadcrumb a{
  color:rgba(242,245,250,.72);
  text-decoration:none;
  transition:color .18s var(--ease);
}
.breadcrumb a:hover{ color:var(--blue); }

/* ---------- 10. 图片容器（页面阶段放图） ---------- */
.img-frame{
  position:relative;
  display:block;
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  aspect-ratio:4 / 3;
  background:
    linear-gradient(135deg,rgba(47,168,255,.14),rgba(139,92,246,.14)),
    var(--panel);
  isolation:isolate;
}
.img-frame > img,
.img-frame > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.img-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(242,245,250,.12) 1px,transparent 1px);
  background-size:8px 8px;
  opacity:.55;
  pointer-events:none;
  z-index:2;
}
.img-frame--wide{ aspect-ratio:16 / 9; }
.img-frame--tall{ aspect-ratio:3 / 4; }
.img-frame--square{ aspect-ratio:1 / 1; }
.img-frame--bleed{
  border-radius:0;
  border-left:0;
  border-right:0;
}
.img-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mute);
}

/* ---------- 11. 斜切主题带 ---------- */
.band{
  position:relative;
  padding:clamp(28px,5vw,56px) clamp(20px,4vw,48px);
  border-block:1px solid var(--line);
  background:
    linear-gradient(100deg,rgba(255,122,26,.14) 0%,rgba(255,212,0,.08) 32%,rgba(31,169,122,.12) 62%,rgba(139,92,246,.13) 100%);
  clip-path:polygon(0 0,100% 2.2%,100% 100%,0 97.8%);
}

/* ---------- 12. 滚动显现 ---------- */
html.has-motion .reveal{
  opacity:0;
  transform:translateY(14px);
}
html.has-motion .reveal.is-visible{
  opacity:1;
  transform:none;
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1180px){
  .header-inner{
    flex-wrap:wrap;
    gap:12px 16px;
    padding-block:12px;
  }
  .nav{
    order:3;
    flex-basis:100%;
    justify-content:flex-start;
    display:none;
    margin-top:2px;
    padding-top:12px;
    border-top:1px dashed var(--line);
  }
  .nav[data-open="true"]{ display:flex; }
  .nav-list{
    flex-direction:column;
    width:100%;
    gap:6px;
  }
  .nav-link{
    padding:12px 14px;
    border:1px solid var(--line);
    border-radius:10px;
    background:rgba(26,32,48,.6);
  }
  .nav-toggle{ display:inline-flex; }
  .header-aside{ margin-left:auto; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:1000px){
  .cta-link{ display:none; }
}
@media (max-width:768px){
  body{
    font-size:16px;
    background-size:48px 48px,48px 48px;
  }
  .brand-name{ font-size:18px; }
  .brand-tag{ font-size:10px; }
  .version-pill{ display:none; }
  .footer-grid{ grid-template-columns:1fr; }
  .footer-base{ justify-content:flex-start; }
  .log-item{ gap:10px; }
  .log-issue{ flex-basis:56px; }
}
@media (max-width:520px){
  .brand-text{ display:none; }
  .header-aside{ gap:8px; }
  .nav-toggle-text{ display:none; }
  .nav-toggle{ padding:9px 12px; }
  .weekly-status{ font-size:12px; }
  .band{ clip-path:polygon(0 0,100% 1.2%,100% 100%,0 98.8%); }
}