/* =========================================================
   竞博主页 · 共享层 /assets/site.css
   深海蓝画布 + 电光青结构线 + 珊瑚橙状态点
   ========================================================= */

:root{
  --ink-900:#03101B;
  --ink-800:#061826;
  --ink-700:#0A2740;
  --ink-500:#1C4E6E;
  --mist:#F4F7F8;
  --warm:#D7DDE2;
  --cyan:#35E0D0;
  --teal:#0E8F86;
  --coral:#FF7A59;
  --pale:#B9F5EF;
  --amber:#F2C14E;

  --text:#F4F7F8;
  --text-2:rgba(244,247,248,.68);
  --text-3:rgba(244,247,248,.46);
  --line:rgba(53,224,208,.26);
  --line-2:rgba(215,221,226,.16);

  --font-serif:"Source Han Serif SC","Noto Serif SC","Songti SC",ui-serif,serif;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;

  --shell:1340px;
  --gutter:clamp(20px,5vw,64px);
  --header-h:74px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 20px);
}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,picture,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 中文排版基调 ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background-color:var(--ink-800);
  background-image:
    radial-gradient(1100px 620px at 84% -12%,rgba(53,224,208,.10),transparent 62%),
    radial-gradient(760px 520px at 2% 8%,rgba(255,122,89,.055),transparent 58%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
body > main{flex:1 0 auto}
h1,h2,h3,h4{
  font-family:var(--font-sans);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--text);
  text-wrap:balance;
}
p{text-wrap:pretty}
::selection{background:rgba(53,224,208,.32);color:var(--mist)}

/* 页面左右框架细线 */
body::before,
body::after{
  content:"";
  position:fixed;
  top:0;
  bottom:0;
  width:1px;
  z-index:40;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(53,224,208,.30),rgba(53,224,208,0) 20%,rgba(53,224,208,0) 80%,rgba(53,224,208,.30));
}
body::before{left:max(10px,calc((100vw - var(--shell)) / 2 + 10px))}
body::after{right:max(10px,calc((100vw - var(--shell)) / 2 + 10px))}

/* ---------- 跳转链接 ---------- */
.jb-skip{
  position:fixed;
  top:10px;
  left:50%;
  z-index:300;
  transform:translate(-50%,-180%);
  padding:.7em 1.3em;
  border-radius:999px;
  background:var(--cyan);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:.84rem;
  font-weight:700;
  letter-spacing:.02em;
  transition:transform .18s var(--ease);
}
.jb-skip:focus{transform:translate(-50%,0)}

/* ---------- 头部框架 ---------- */
.jb-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(6,24,38,.94);
  border-bottom:1px solid var(--line);
  color:var(--text);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.jb-header__inner{
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--header-h);
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:clamp(12px,2vw,32px);
}

/* 品牌 */
.jb-brand{display:flex;align-items:center;gap:12px;min-width:0}
.jb-brand__mark{
  position:relative;
  flex:none;
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:11px;
  background:linear-gradient(150deg,rgba(53,224,208,.16),rgba(10,39,64,.65));
}
.jb-brand__mark::before{
  content:"";
  position:absolute;
  inset:6px;
  border:1px dashed rgba(53,224,208,.30);
  border-radius:7px;
}
.jb-brand__dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(53,224,208,.85);
  animation:jb-breathe 2.4s ease-in-out infinite;
}
.jb-brand__text{display:flex;flex-direction:column;line-height:1.16;min-width:0}
.jb-brand__name{
  font-family:var(--font-serif);
  font-weight:800;
  font-size:1.12rem;
  letter-spacing:.01em;
  white-space:nowrap;
}
.jb-brand__tag{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.06em;
  color:var(--text-3);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* 主导航 */
.jb-nav{justify-self:center;min-width:0}
.jb-nav__list{display:flex;align-items:center;gap:clamp(0px,.6vw,8px)}
.jb-nav__item{display:flex}
.jb-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:10px 9px;
  border-radius:8px;
  font-family:var(--font-sans);
  font-size:.855rem;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .16s var(--ease);
}
.jb-nav__link::after{
  content:"";
  position:absolute;
  left:9px;
  right:9px;
  bottom:4px;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s var(--ease);
}
.jb-nav__link:hover{color:var(--text)}
.jb-nav__link:hover::after{transform:scaleX(1)}
.jb-nav__link[aria-current="page"]{color:var(--cyan)}
.jb-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--coral)}
.jb-nav__index{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.02em;
  color:var(--cyan);
  opacity:.72;
}

/* 右侧动作区 */
.jb-header__actions{
  display:flex;
  align-items:center;
  justify-self:end;
  gap:clamp(8px,1.1vw,16px);
}
.jb-header__coords{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.08em;
  color:var(--text-3);
  white-space:nowrap;
}
.jb-version{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 12px 6px 9px;
  border-radius:999px;
  border:1px solid rgba(255,122,89,.38);
  background:rgba(255,122,89,.10);
  font-size:.72rem;
  color:var(--text);
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.jb-version:hover{border-color:var(--coral);background:rgba(255,122,89,.18)}
.jb-version__dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--coral);
  animation:jb-breathe 2.4s ease-in-out infinite;
}
.jb-version__code{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.06em;
  color:var(--coral);
}
.jb-version__text{white-space:nowrap;color:var(--text-2)}

/* 移动菜单按钮 */
.jb-nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(53,224,208,.06);
  color:var(--cyan);
  font-family:var(--font-sans);
  font-size:.8rem;
  font-weight:700;
  cursor:pointer;
  transition:background-color .16s var(--ease),border-color .16s var(--ease);
}
.jb-nav-toggle:hover{border-color:var(--cyan);background:rgba(53,224,208,.14)}
.jb-nav-toggle__bars{display:flex;flex-direction:column;gap:5px;width:16px}
.jb-nav-toggle__bars span{
  display:block;
  height:1.5px;
  border-radius:2px;
  background:currentColor;
  transition:transform .18s var(--ease),opacity .18s var(--ease);
}
.jb-nav-toggle__label{letter-spacing:.06em}
.jb-header[data-open="true"] .jb-nav-toggle__bars span:nth-child(1){transform:translateY(3.2px) rotate(45deg)}
.jb-header[data-open="true"] .jb-nav-toggle__bars span:nth-child(2){transform:translateY(-3.2px) rotate(-45deg)}

/* 滚动进度 */
.jb-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:rgba(53,224,208,.10);
  pointer-events:none;
}
.jb-progress__bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--teal),var(--cyan) 68%,var(--coral));
  transition:width .1s linear;
}

/* ---------- 通用按钮 ---------- */
.jb-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.66em 1.25em;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-sans);
  font-size:.84rem;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease);
}
.jb-cta:hover{transform:translateY(-1px)}
.jb-cta--primary{background:var(--cyan);color:var(--ink-900)}
.jb-cta--primary:hover{background:var(--pale)}
.jb-cta--ghost{border-color:var(--line);background:rgba(53,224,208,.07);color:var(--cyan)}
.jb-cta--ghost:hover{border-color:var(--cyan);background:rgba(53,224,208,.16)}
.jb-cta--coral{background:var(--coral);color:var(--ink-900)}
.jb-cta--coral:hover{background:#ff9478}
.jb-cta--line{border-color:var(--line-2);color:var(--text)}
.jb-cta--line:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- 布局容器 ---------- */
.jb-shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.jb-section{padding-block:clamp(56px,8vw,120px)}
.jb-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(18px,2.6vw,36px);
}
.jb-prose{
  max-width:68ch;
  font-size:clamp(1rem,1.05vw,1.06rem);
  line-height:1.85;
  color:rgba(244,247,248,.86);
}
.jb-prose h2{font-size:clamp(1.35rem,2.2vw,1.75rem);margin-top:2.2em;margin-bottom:.6em}
.jb-prose h3{font-size:1.15rem;margin-top:1.8em;margin-bottom:.5em}
.jb-prose p + p{margin-top:1.05em}
.jb-prose ul{display:grid;gap:.6em;margin-block:1em}
.jb-prose li{position:relative;padding-left:1.2em}
.jb-prose li::before{
  content:"";
  position:absolute;
  left:0;top:.78em;
  width:6px;height:6px;border-radius:50%;
  background:var(--teal);
}
.jb-prose strong{color:var(--text)}
.jb-prose a{color:var(--cyan);border-bottom:1px solid rgba(53,224,208,.4)}
.jb-prose a:hover{border-color:var(--cyan)}
.jb-rule{
  height:1px;
  border:0;
  background:linear-gradient(90deg,rgba(53,224,208,0),rgba(53,224,208,.42),rgba(53,224,208,0));
}

/* ---------- 面包屑 ---------- */
.jb-crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:18px 0;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.08em;
  color:var(--text-3);
}
.jb-crumbs a{color:var(--text-2);transition:color .16s var(--ease)}
.jb-crumbs a:hover{color:var(--cyan)}
.jb-crumbs__sep{color:rgba(53,224,208,.5)}
.jb-crumbs [aria-current="page"]{color:var(--cyan)}

/* ---------- 基础组件 ---------- */
.jb-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:6px;
  border:1px solid rgba(185,245,239,.24);
  background:rgba(185,245,239,.14);
  color:var(--pale);
  font-family:var(--font-sans);
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.08em;
}
.jb-tag--coral{background:rgba(255,122,89,.14);color:#ffb4a0;border-color:rgba(255,122,89,.34)}
.jb-tag--mono{font-family:var(--font-mono);letter-spacing:.04em}

.jb-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.06em;
  color:var(--text-2);
}
.jb-status::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--cyan);
  animation:jb-breathe 2.4s ease-in-out infinite;
}
.jb-status--warn::before{background:var(--amber);animation:none}
.jb-status--alert::before{background:var(--coral);animation:none}
.jb-status--idle::before{background:var(--warm);opacity:.5;animation:none}

.jb-panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line-2);
  border-radius:18px;
  background:linear-gradient(160deg,rgba(10,39,64,.72),rgba(6,24,38,.32));
}
.jb-panel--mist{background:var(--mist);color:var(--ink-800);border-color:rgba(6,24,38,.10)}
.jb-panel--mist h2,.jb-panel--mist h3{color:var(--ink-800)}

.jb-link{
  color:var(--cyan);
  border-bottom:1px solid rgba(53,224,208,.35);
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.jb-link:hover{border-color:var(--cyan);color:var(--pale)}

/* ---------- 图片容器基础规则 ---------- */
.jb-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 10;
  border:1px solid var(--line-2);
  border-radius:16px;
  background:
    radial-gradient(120% 120% at 18% 0%,rgba(53,224,208,.16),transparent 62%),
    linear-gradient(150deg,var(--ink-700),var(--ink-900));
}
.jb-media img,
.jb-media picture img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.jb-media--wide{aspect-ratio:21 / 9}
.jb-media--tall{aspect-ratio:3 / 4}
.jb-media--square{aspect-ratio:1 / 1}
.jb-media__grid{
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.5;
  background-image:
    linear-gradient(rgba(53,224,208,.12) 1px,transparent 1px),
    linear-gradient(90deg,rgba(53,224,208,.12) 1px,transparent 1px);
  background-size:48px 48px;
}
.jb-media__caption{
  position:absolute;
  left:14px;
  bottom:12px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.08em;
  color:rgba(244,247,248,.72);
}

/* ---------- 页脚 ---------- */
.jb-footer{
  position:relative;
  margin-top:auto;
  padding-block:clamp(48px,7vw,88px) 28px;
  background:var(--ink-900);
  border-top:1px solid var(--line);
  color:var(--text);
}
.jb-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:10px;
  pointer-events:none;
  opacity:.55;
  background-image:repeating-linear-gradient(90deg,rgba(53,224,208,.42) 0 1px,transparent 1px 22px);
}
.jb-footer__inner{
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:grid;
  grid-template-columns:1.6fr .85fr 1.15fr .7fr;
  gap:clamp(24px,4vw,56px);
}
.jb-footer__lead{min-width:0}
.jb-footer__eyebrow{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.16em;
  color:var(--cyan);
}
.jb-footer__brand{
  font-family:var(--font-serif);
  font-weight:800;
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--text);
}
.jb-footer__tagline{
  margin-top:12px;
  max-width:32ch;
  font-size:.92rem;
  color:var(--text-2);
}
.jb-footer__col{min-width:0}
.jb-footer__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:.68rem;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--text-3);
}
.jb-footer__list{
  display:grid;
  gap:9px;
  font-size:.9rem;
  line-height:1.6;
  color:var(--text-2);
}
.jb-footer__link{
  display:inline-block;
  color:var(--text-2);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.jb-footer__link:hover{color:var(--cyan);transform:translateX(2px)}
.jb-footer__mono{
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.02em;
  color:var(--pale);
  word-break:break-all;
}
.jb-footer__base{
  max-width:var(--shell);
  margin:clamp(32px,5vw,56px) auto 0;
  padding:20px var(--gutter) 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  border-top:1px solid var(--line-2);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.05em;
  color:var(--text-3);
}
.jb-footer__copy,
.jb-footer__icp,
.jb-footer__coords{white-space:nowrap}

/* 返回顶部 */
.jb-top{
  position:fixed;
  right:clamp(14px,3vw,32px);
  bottom:clamp(14px,3vw,32px);
  z-index:80;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(10,39,64,.92);
  color:var(--cyan);
  font-family:var(--font-sans);
  font-size:.78rem;
  font-weight:700;
  cursor:pointer;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s,border-color .16s var(--ease);
}
.jb-top[data-visible="false"]{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transform:translateY(10px);
}
.jb-top:hover{border-color:var(--cyan)}
.jb-top__icon{font-family:var(--font-mono);font-size:.95rem;line-height:1}
.jb-top__text{letter-spacing:.06em}

/* ---------- 渐显协议 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 动画 ---------- */
@keyframes jb-breathe{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(53,224,208,.45)}
  50%{opacity:.55;box-shadow:0 0 0 6px rgba(53,224,208,0)}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .jb-header__coords{display:none}
}

@media (max-width:1080px){
  .jb-header__inner{grid-template-columns:1fr auto}
  .jb-nav-toggle{display:inline-flex}
  .jb-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    justify-self:stretch;
    padding:14px var(--gutter) 26px;
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    background:var(--ink-700);
    border-top:1px solid var(--line-2);
    border-bottom:1px solid var(--line);
    box-shadow:0 26px 52px rgba(3,16,27,.6);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  }
  .jb-header[data-open="true"] .jb-nav{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .jb-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .jb-nav__item{display:block}
  .jb-nav__link{
    justify-content:space-between;
    width:100%;
    padding:14px 12px;
    font-size:1rem;
    border-bottom:1px solid rgba(215,221,226,.08);
    border-radius:10px;
  }
  .jb-nav__link::after{display:none}
  .jb-nav__link[aria-current="page"]{background:rgba(53,224,208,.10)}
  .jb-nav__index{order:2;font-size:.72rem}
}

@media (max-width:860px){
  .jb-brand__tag{display:none}
  .jb-header__actions .jb-version{display:none}
  .jb-header__actions .jb-cta--ghost{display:none}
  .jb-footer__inner{grid-template-columns:1fr 1fr}
}

@media (max-width:820px){
  .jb-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
}

@media (max-width:680px){
  :root{--header-h:66px}
  body::before,body::after{display:none}
  .jb-footer__inner{grid-template-columns:1fr}
  .jb-footer__base{flex-direction:column;align-items:flex-start;gap:8px}
  .jb-top__text{display:none}
  .jb-top{padding:12px 14px}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important}
}

/* ---------- 打印 ---------- */
@media print{
  .jb-header,.jb-footer,.jb-top,.jb-skip{display:none !important}
  body{background:#fff;color:#000}
}