/* 博王主页 · 共享样式表 /assets/site.css
   夜间调度台基调：墨夜深蓝为底，轨道蓝分隔结构，暖金给序号，
   珊瑚橙只留给当前步骤与主按钮。 */

/* ── 1. reset ─────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,table{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold-lite);outline-offset:3px;border-radius:3px}

/* ── 2. 变量 ──────────────────────────────── */
:root{
  --ink-900:#08122A;
  --ink-800:#10203F;
  --rail:#1B3358;
  --gold:#E3B666;
  --gold-lite:#F6DFA8;
  --coral:#FF6A45;
  --jade:#3FA8A0;
  --violet:#7A6CF0;
  --copper:#C98A4B;
  --paper:#F4F6FB;
  --paper-dim:rgba(244,246,251,.70);
  --paper-faint:rgba(244,246,251,.46);
  --line-soft:rgba(27,51,88,.62);
  --panel:linear-gradient(158deg,rgba(16,32,63,.94),rgba(8,18,42,.96));
  --font-head:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --shell:1240px;
  --radius:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ── 3. 基底与中文排版 ────────────────────── */
html,body{min-height:100%}
body{
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 84% -10%, rgba(227,182,102,.12), transparent 62%),
    radial-gradient(760px 500px at 4% 16%, rgba(63,168,160,.08), transparent 60%),
    linear-gradient(180deg,#08122A 0%,#0A1730 48%,#08122A 100%);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:0;bottom:0;left:88px;
  width:1px;
  background:linear-gradient(180deg,transparent,rgba(27,51,88,.85) 14%,rgba(27,51,88,.85) 86%,transparent);
  pointer-events:none;
  z-index:0;
}
h1,h2,h3,h4,h5{font-family:var(--font-head);font-weight:800;letter-spacing:-.02em;line-height:1.26;color:var(--paper)}
h1{font-size:clamp(2rem,4.4vw,3.2rem)}
h2{font-size:clamp(1.4rem,2.5vw,1.9rem)}
h3{font-size:1.08rem;letter-spacing:-.01em}
p{color:var(--paper-dim)}

/* ── 4. 容器与网格 ────────────────────────── */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,40px);
}
.shell--narrow{max-width:820px}
#main-content{position:relative;z-index:1;display:block;scroll-margin-top:118px}
.grid{display:grid;gap:clamp(1rem,2.4vw,1.8rem)}
.grid--split{grid-template-columns:minmax(170px,1fr) minmax(0,2.6fr)}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}

/* ── 5. 文本工具 ──────────────────────────── */
.mono-note{font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;color:var(--gold)}
.lede{font-size:1.06rem;line-height:1.95;color:rgba(244,246,251,.84);max-width:42em}
.prose{max-width:100%}
.prose p{margin-bottom:1.05rem;max-width:42em}
.prose h3{margin:1.7rem 0 .6rem;color:var(--paper)}
.prose ul{margin:0 0 1.15rem;display:grid;gap:.45rem}
.prose li{position:relative;padding-left:1.15rem;color:var(--paper-dim);max-width:42em}
.prose li::before{content:"";position:absolute;left:0;top:.82em;width:6px;height:6px;border-radius:50%;background:var(--gold);opacity:.72}
.prose a{color:var(--gold-lite);border-bottom:1px solid rgba(227,182,102,.5)}
.prose a:hover{border-bottom-color:var(--gold-lite)}

/* ── 6. 页面头部与面包屑 ──────────────────── */
.page-head{
  padding-block:clamp(2rem,5vw,3.4rem) clamp(1.3rem,3vw,2rem);
  border-bottom:1px solid var(--line-soft);
}
.page-head__kicker{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;color:var(--gold);margin-bottom:.9rem}
.page-head__title{font-size:clamp(1.9rem,4.2vw,3rem)}
.page-head__lead{margin-top:1rem;max-width:42em;font-size:1.02rem;color:var(--paper-dim)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1.1rem;font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--paper-faint)}
.crumbs__item a:hover{color:var(--gold-lite)}
.crumbs__sep{color:rgba(227,182,102,.55)}

/* ── 7. 章节 ──────────────────────────────── */
.section,.section[id],[data-section]{scroll-margin-top:118px}
.section{padding-block:clamp(2.2rem,5vw,4rem);border-top:1px solid var(--line-soft)}
.section:first-of-type{border-top:0}
.section__head{display:flex;flex-wrap:wrap;align-items:baseline;gap:.9rem;margin-bottom:1.4rem}
.section__idx{font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;color:var(--gold)}
.section__title{font-size:clamp(1.35rem,2.4vw,1.85rem)}

/* ── 8. 按钮、标签 ────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.72em 1.35em;border-radius:999px;
  border:1px solid var(--rail);background:rgba(16,32,63,.72);color:var(--paper);
  font-family:var(--font-head);font-weight:700;font-size:.94rem;letter-spacing:.01em;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.btn:hover{color:var(--gold-lite);border-color:var(--gold);transform:translateY(-2px)}
.btn--coral{background:var(--coral);border-color:var(--coral);color:#200A02}
.btn--coral:hover{background:#FF8163;border-color:#FF8163;color:#200A02}
.btn--ghost{background:transparent;border-color:rgba(227,182,102,.65);color:var(--gold-lite)}
.btn--ghost:hover{border-color:var(--gold-lite);color:var(--paper)}
.tag{
  display:inline-flex;align-items:center;gap:.35em;
  padding:.18rem .72rem;border-radius:999px;
  border:1px solid rgba(227,182,102,.55);color:var(--gold-lite);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;line-height:1.8;
}
.tag--jade{border-color:rgba(63,168,160,.62);color:#93DAD4}
.tag--violet{border-color:rgba(122,108,240,.62);color:#BAB1F9}
.tag--copper{border-color:rgba(201,138,75,.66);color:#E2AF77}

/* ── 9. 卡片、步骤、表格、折叠 ────────────── */
.card{background:var(--panel);border:1px solid var(--rail);border-radius:var(--radius);padding:clamp(1.1rem,2.2vw,1.6rem);transition:border-color .2s var(--ease),transform .2s var(--ease)}
.card:hover{border-color:rgba(227,182,102,.55);transform:translateY(-2px)}
.card__title{font-size:1.05rem;margin-bottom:.4rem}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--gold)}

.step-list{display:grid;gap:1.05rem}
.step{display:grid;grid-template-columns:44px minmax(0,1fr);gap:1rem;position:relative}
.step::before{content:"";position:absolute;left:17px;top:42px;bottom:-1.05rem;width:1px;background:linear-gradient(180deg,rgba(227,182,102,.45),rgba(27,51,88,.25))}
.step:last-child::before{display:none}
.step__idx{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--rail);background:rgba(8,18,42,.92);color:var(--gold);font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;transition:border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease)}
.step__body{padding-top:.35rem;font-size:.95rem;color:var(--paper-dim)}
.step__body h3{color:var(--paper);margin-bottom:.3rem}
.step[aria-current="true"] .step__idx{border-color:var(--coral);color:var(--coral);box-shadow:0 0 0 4px rgba(255,106,69,.13)}

.data-table{font-family:var(--font-mono);font-size:13px}
.data-table th,.data-table td{text-align:left;vertical-align:top;padding:.62rem .55rem;border-bottom:1px solid var(--line-soft)}
.data-table th{color:var(--gold);font-weight:600;letter-spacing:.08em}
.data-table td{color:var(--paper-dim)}

.disclosure{border:1px solid var(--rail);border-radius:var(--radius);background:rgba(16,32,63,.55);overflow:hidden}
.disclosure + .disclosure{margin-top:.75rem}
.disclosure__summary{display:flex;justify-content:space-between;gap:1rem;padding:.9rem 1.1rem;cursor:pointer;list-style:none;font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;color:var(--gold-lite);transition:background-color .2s var(--ease)}
.disclosure__summary::-webkit-details-marker{display:none}
.disclosure__summary::after{content:"＋";color:var(--coral)}
.disclosure[open] .disclosure__summary::after{content:"－"}
.disclosure__summary:hover{background:rgba(27,51,88,.35)}
.disclosure__body{padding:.15rem 1.1rem 1.15rem;font-size:.94rem;color:var(--paper-dim);max-width:42em}

/* ── 10. 路径指示栏 ───────────────────────── */
.rail{display:flex;flex-direction:column;gap:.3rem;position:sticky;top:122px}
.rail__item{display:flex;align-items:baseline;gap:.6rem;padding:.35rem 0 .35rem .75rem;border-left:2px solid rgba(27,51,88,.9);font-size:.88rem;line-height:1.7;color:var(--paper-faint);transition:color .2s var(--ease),border-color .2s var(--ease)}
.rail__item:hover{color:var(--paper)}
.rail__item[aria-current]{border-left-color:var(--coral);color:var(--gold-lite)}
.rail__idx{font-family:var(--font-mono);font-size:11.5px;color:var(--gold);opacity:.8}

/* ── 11. 图片容器（供页面阶段放置占位） ───── */
.figure{
  position:relative;margin:0;border:1px solid var(--rail);border-radius:16px;overflow:hidden;
  background-image:
    linear-gradient(135deg,rgba(27,51,88,.92),rgba(8,18,42,.96)),
    radial-gradient(120% 80% at 82% 0%, rgba(227,182,102,.20), transparent 60%);
}
.figure__media{width:100%;aspect-ratio:16/9;overflow:hidden}
.figure__media > img{width:100%;height:100%;object-fit:cover}
.figure--tall .figure__media{aspect-ratio:4/5}
.figure--wide .figure__media{aspect-ratio:21/9}
.figure__cap{padding:.7rem 1rem;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--gold);background:rgba(8,18,42,.65);border-top:1px solid var(--line-soft)}

/* ── 12. 显现动效基类 ─────────────────────── */
[data-reveal-ready] [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
[data-reveal-ready] [data-reveal].is-visible{opacity:1;transform:none}

/* ── 13. 头部 ─────────────────────────────── */
.skip-link{
  position:absolute;left:1rem;top:-120px;z-index:200;
  padding:.6rem 1rem;border-radius:0 0 10px 10px;
  background:var(--gold);color:#0A1526;font-family:var(--font-head);font-weight:800;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,18,42,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rail);
}
.header-top{
  max-height:56px;overflow:hidden;
  border-bottom:1px solid rgba(27,51,88,.55);
  transition:max-height .3s var(--ease),opacity .3s var(--ease),border-color .3s var(--ease);
}
.site-header[data-condensed] .header-top{max-height:0;opacity:0;border-color:transparent}
.header-top__inner{
  display:flex;align-items:center;gap:1.2rem;
  padding-block:.42rem;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.05em;
  color:var(--paper-faint);
}
.header-top__brand{color:var(--gold-lite);white-space:nowrap;font-size:12.5px;margin:0}
.header-top__duty{color:rgba(244,246,251,.52);white-space:nowrap;font-size:12.5px;margin:0}
.header-top__meta{margin-left:auto;display:flex;align-items:center;gap:1.1rem;white-space:nowrap}
.header-top__help{color:var(--coral);border-bottom:1px solid rgba(255,106,69,.42);padding-bottom:1px;transition:color .2s var(--ease),border-color .2s var(--ease)}
.header-top__help:hover{color:var(--gold-lite);border-bottom-color:var(--gold-lite)}

.header-main{position:relative}
.header-main__inner{display:flex;align-items:center;gap:clamp(1rem,3vw,2.4rem);min-height:66px;padding-block:.6rem}
.brand{display:flex;align-items:center;gap:.72rem;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold),#B4863A);
  color:#0A1526;font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.04em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__name{font-family:var(--font-head);font-weight:800;font-size:1.05rem;color:var(--paper)}
.brand__sub{font-size:11px;letter-spacing:.16em;color:var(--gold);opacity:.85}

.nav-toggle{
  display:none;margin-left:auto;align-items:center;gap:.55rem;
  padding:.5rem .95rem;border:1px solid var(--rail);border-radius:999px;
  background:rgba(16,32,63,.8);color:var(--paper);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold-lite)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:var(--gold)}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--gold)}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{background:var(--coral)}

.site-nav{margin-left:auto}
.site-nav__list{display:flex;flex-wrap:wrap;gap:clamp(.35rem,1.4vw,1.15rem)}
.site-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:.42em;
  padding:.5rem .15rem .55rem;
  font-size:.94rem;line-height:1.4;color:rgba(244,246,251,.76);
  border-bottom:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.site-nav__link:hover{color:var(--paper)}
.site-nav__link:hover .site-nav__idx{color:var(--gold-lite)}
.site-nav__link[aria-current="page"]{color:var(--paper);border-bottom-color:var(--coral)}
.site-nav__link[aria-current="page"] .site-nav__idx{color:var(--coral)}
.site-nav__idx{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:rgba(227,182,102,.7);transition:color .2s var(--ease)}

.read-progress{position:fixed;left:0;right:0;bottom:0;height:3px;z-index:80;background:rgba(27,51,88,.75);pointer-events:none}
.read-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--coral));
  transition:transform .1s linear;
}

/* ── 14. 页脚 ─────────────────────────────── */
.site-footer{
  position:relative;z-index:2;
  margin-top:clamp(3rem,8vw,6rem);
  border-top:1px solid var(--rail);
  background:linear-gradient(180deg,#08122A 0%,#0B1832 58%,#060E20 100%);
}
.footer-main{padding-block:clamp(2.4rem,5vw,3.6rem)}
.footer-brand{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1.1rem;
  padding-bottom:1.4rem;margin-bottom:1.9rem;
  border-bottom:1px solid rgba(27,51,88,.7);
}
.footer-brand__name{font-family:var(--font-head);font-size:1.25rem;font-weight:800;color:var(--paper)}
.footer-brand__desc{font-size:.9rem;color:var(--paper-faint);max-width:56ch}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(1.4rem,3vw,2.4rem)}
.footer-col{min-width:0}
.footer-col__title{margin-bottom:.9rem;font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--gold)}
.footer-list li{margin-bottom:.6rem;font-size:.9rem;line-height:1.75;color:rgba(244,246,251,.72);overflow-wrap:anywhere}
.footer-label{display:block;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:rgba(227,182,102,.78);margin-bottom:.1rem}
.footer-link{color:rgba(244,246,251,.82);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.footer-link:hover{color:var(--gold-lite);border-bottom-color:rgba(246,223,168,.55)}
.footer-legal{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:.7rem 1.6rem;
  padding-block:1.1rem 1.5rem;
  border-top:1px solid var(--rail);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.03em;color:var(--paper-faint);
}
.footer-legal__line{margin:0;color:var(--paper-faint)}
.footer-legal__note{margin:0;max-width:62ch;color:rgba(244,246,251,.42);line-height:1.8}

/* ── 15. 响应式 ───────────────────────────── */
@media (max-width:1200px){
  body::before{display:none}
}
@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .rail{position:static;flex-direction:row;gap:.15rem;overflow-x:auto;padding-bottom:.4rem;scrollbar-width:thin}
  .rail__item{border-left:0;border-bottom:2px solid rgba(27,51,88,.9);padding:.4rem .7rem;white-space:nowrap}
  .rail__item[aria-current]{border-bottom-color:var(--coral)}
}
@media (max-width:860px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    padding:1rem clamp(18px,4vw,40px) 1.4rem;
    background:rgba(8,18,42,.985);
    border-bottom:1px solid var(--rail);
    box-shadow:0 26px 40px -28px rgba(0,0,0,.85);
  }
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;gap:0}
  .site-nav__item{width:100%}
  .site-nav__link{width:100%;padding:.85rem 0 .85rem .8rem;border-bottom:1px solid rgba(27,51,88,.7);border-left:2px solid transparent}
  .site-nav__link[aria-current="page"]{border-bottom-color:rgba(27,51,88,.7);border-left-color:var(--coral)}
  .header-top__duty{display:none}
  .header-top__inner{justify-content:space-between}
  .header-main__inner{min-height:60px}
}
@media (max-width:600px){
  body{font-size:15.5px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .header-top__brand{display:none}
  .brand__sub{display:none}
  .read-progress{height:4px}
  .step{grid-template-columns:38px minmax(0,1fr);gap:.8rem}
  .step__idx{width:32px;height:32px;font-size:12px}
  .step::before{left:15px;top:38px}
}

/* ── 16. 无障碍与降级动效 ─────────────────── */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .btn:hover,.card:hover{transform:none}
  [data-reveal-ready] [data-reveal]{opacity:1;transform:none}
  .read-progress__bar{transition:none}
}