/* ============ 1. Reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body,h1,h2,h3,h4,p,figure,blockquote,dl,dd,ul,ol{margin:0;padding:0}
ul[class],ol[class]{list-style:none}
img,svg,video{max-width:100%;display:block}
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;border-spacing:0}
[hidden]{display:none !important}

/* ============ 2. 变量 ============ */
:root{
  --ink:#07130F;
  --board:#0E2119;
  --panel:#14322A;
  --paper:#F2F5EE;
  --lime:#C8F135;
  --orange:#FF6A1F;
  --clay:#A8452C;
  --moss:#6B8F7F;
  --cyan:#2FD1C5;
  --char:#101312;
  --line:rgba(242,245,238,.14);
  --line-soft:rgba(242,245,238,.08);
  --rail-w:238px;
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-md:18px;
  --pill:999px;
  --gutter:clamp(20px,4vw,48px);
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC","Times New Roman",Georgia,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --ease:cubic-bezier(.22,.68,.24,1);
}

/* ============ 3. 基础与中文排版 ============ */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 6% -8%,rgba(47,209,197,.10),transparent 62%),
    radial-gradient(920px 620px at 104% 2%,rgba(168,69,44,.15),transparent 66%),
    linear-gradient(180deg,#07130F 0%,#081712 50%,#07130F 100%);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:clamp(15px,.55vw + 13px,17px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
@media (min-width:1024px){body{padding-left:var(--rail-w)}}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;line-height:1.2;letter-spacing:.01em}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem);line-height:1.12}
h2{font-size:clamp(1.55rem,2.8vw,2.4rem)}
h3{font-size:clamp(1.12rem,1.5vw,1.55rem)}
h4{font-size:1.02rem;font-family:var(--font-sans);font-weight:700;letter-spacing:.04em}
p{margin-bottom:1.05em;text-wrap:pretty}
strong{color:var(--lime);font-weight:700}
::selection{background:var(--lime);color:#0B1A12}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
main{display:block}
main:focus{outline:none}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 4. 跳转链接与进度条 ============ */
.skip-link{
  position:fixed;top:-90px;left:16px;z-index:300;
  background:var(--lime);color:#0B1A12;
  padding:10px 18px;border-radius:var(--pill);
  font-weight:700;font-size:.85rem;letter-spacing:.06em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:14px}

.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:220;
  background:rgba(242,245,238,.07);pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--cyan) 55%,var(--orange));
  transition:transform .12s linear;
}
@media (min-width:1024px){.scroll-progress{left:var(--rail-w)}}

/* ============ 5. 侧边导览导轨 / 头部 ============ */
.site-rail{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:200;
  background:linear-gradient(180deg,#0E2119 0%,#0A1A14 55%,#07130F 100%);
  border-right:1px solid var(--line-soft);
}
.site-rail::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--lime),rgba(47,209,197,.55) 45%,transparent 92%);
  opacity:.55;
}
.rail-inner{
  position:relative;display:flex;flex-direction:column;gap:18px;
  height:100%;padding:26px 20px 22px;overflow-y:auto;overscroll-behavior:contain;
}
.rail-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.rail-brand{display:flex;align-items:center;gap:11px;color:var(--paper)}
.rail-mark{
  flex:0 0 auto;width:11px;height:28px;border-radius:3px;
  background:linear-gradient(180deg,var(--lime),var(--cyan));
  box-shadow:0 0 16px rgba(200,241,53,.45);
}
.rail-names{display:flex;flex-direction:column;line-height:1.3}
.rail-name{font-family:var(--font-serif);font-size:1.16rem;font-weight:600;letter-spacing:.02em}
.rail-tagline{font-size:.7rem;letter-spacing:.2em;color:var(--moss)}

.rail-meta{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding-bottom:16px;border-bottom:1px dashed var(--line);
}
.rail-version{
  font-family:var(--font-mono);font-size:.74rem;font-weight:700;letter-spacing:.06em;
  background:var(--lime);color:#0B1A12;border-radius:var(--pill);padding:3px 11px;
}
.rail-badge{
  font-size:.72rem;font-weight:700;letter-spacing:.08em;
  color:var(--orange);border:1px solid rgba(255,106,31,.5);
  border-radius:var(--pill);padding:3px 11px;transition:background .22s var(--ease),color .22s var(--ease);
}
.rail-badge:hover{background:rgba(255,106,31,.14)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  border:1px solid rgba(200,241,53,.4);color:var(--lime);
  border-radius:var(--pill);padding:7px 13px;
  font-size:.76rem;font-weight:700;letter-spacing:.14em;
  transition:background .22s var(--ease);
}
.nav-toggle:hover{background:rgba(200,241,53,.12)}
.nav-toggle-label{white-space:nowrap}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px}
.nav-toggle-bars i{display:block;width:15px;height:2px;border-radius:2px;background:currentColor;transition:transform .22s var(--ease)}
.site-rail[data-open] .nav-toggle-bars i:first-child{transform:translateY(3px) rotate(45deg)}
.site-rail[data-open] .nav-toggle-bars i:last-child{transform:translateY(-3px) rotate(-45deg)}

.rail-drawer{display:flex;flex-direction:column;gap:18px;flex:1;min-height:0}
.site-nav{display:flex;flex-direction:column;gap:8px}
.nav-list{display:flex;flex-direction:column;gap:5px}
.nav-item{display:block}
.nav-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:var(--pill);
  font-size:.9rem;font-weight:500;letter-spacing:.03em;
  color:rgba(242,245,238,.76);border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.nav-link::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:rgba(107,143,127,.85);transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-link:hover{background:rgba(200,241,53,.08);color:var(--paper)}
.nav-link[aria-current="page"]{
  color:var(--lime);
  background:linear-gradient(90deg,rgba(200,241,53,.17),rgba(200,241,53,.02));
  border-color:rgba(200,241,53,.36);
}
.nav-link[aria-current="page"]::before{background:var(--lime);box-shadow:0 0 10px var(--lime)}

.rail-index{display:flex;flex-direction:column;gap:5px;padding-top:14px;border-top:1px solid var(--line-soft)}
.rail-index-link{
  display:block;padding:6px 14px;border-radius:var(--pill);
  font-size:.8rem;letter-spacing:.04em;color:rgba(107,143,127,.95);
  border-left:2px solid transparent;transition:color .22s var(--ease),border-color .22s var(--ease);
}
.rail-index-link:hover{color:var(--paper)}
.rail-index-link[aria-current="true"]{color:var(--cyan);border-left-color:var(--cyan)}

.rail-foot{
  margin-top:auto;display:flex;flex-direction:column;gap:10px;
  padding-top:18px;border-top:1px solid var(--line-soft);
}
.rail-cta{width:100%}
.rail-mail{
  text-align:center;font-size:.76rem;letter-spacing:.16em;color:var(--moss);
  transition:color .22s var(--ease);
}
.rail-mail:hover{color:var(--cyan)}

/* ============ 6. 页脚 ============ */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,110px);
  background:linear-gradient(180deg,#0A1A14 0%,var(--char) 100%);
  border-top:1px solid var(--line-soft);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--lime),var(--cyan) 38%,var(--clay) 72%,transparent);
  opacity:.8;
}
.footer-inner{
  width:100%;max-width:1240px;margin-inline:auto;
  padding:clamp(34px,5vw,62px) var(--gutter) clamp(22px,3vw,34px);
  display:grid;gap:clamp(24px,3vw,44px);grid-template-columns:1fr;
}
.footer-brand{display:flex;flex-direction:column;gap:10px}
.footer-logo{font-family:var(--font-serif);font-size:1.35rem;font-weight:600;letter-spacing:.02em;color:var(--paper)}
.footer-logo:hover{color:var(--lime)}
.footer-tagline{font-size:.78rem;letter-spacing:.12em;color:var(--moss)}
.footer-nav{display:grid;gap:22px;grid-template-columns:repeat(2,minmax(0,1fr))}
.footer-col{min-width:0}
.footer-title{
  font-family:var(--font-sans);font-size:.74rem;font-weight:700;
  letter-spacing:.2em;color:var(--lime);margin-bottom:12px;
}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-link{
  display:inline-block;font-size:.92rem;color:rgba(242,245,238,.72);
  border-bottom:1px solid transparent;transition:color .22s var(--ease),border-color .22s var(--ease);
}
.footer-link:hover{color:var(--lime);border-bottom-color:rgba(200,241,53,.5)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact-line{font-size:.88rem;color:rgba(242,245,238,.85);margin:0}
.footer-mono{font-family:var(--font-mono);font-size:.86em;letter-spacing:-.01em;color:var(--cyan);word-break:break-all}
.footer-contact-note{font-size:.8rem;color:var(--moss);margin:0;max-width:34em}
.footer-address{font-size:.8rem;color:var(--moss);margin:0}
.footer-legal{
  grid-column:1/-1;display:flex;flex-wrap:wrap;gap:6px 20px;justify-content:space-between;
  padding-top:20px;border-top:1px solid var(--line-soft);
  font-size:.78rem;letter-spacing:.06em;color:var(--moss);
}
.footer-copy{margin:0}
.footer-legal-line{margin:0;font-family:var(--font-mono)}

/* ============ 7. 布局容器与网格 ============ */
.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(30px,4.6vw,72px)}
.section-head{max-width:780px;margin-bottom:clamp(20px,3vw,38px)}
.lead{font-size:clamp(1rem,.7vw + .85rem,1.2rem);line-height:1.8;color:rgba(242,245,238,.82);max-width:38em}
.prose{max-width:40em}
.prose p{margin-bottom:1.15em;color:rgba(242,245,238,.86)}
.prose h2{margin-block:1.4em .5em}
.prose h3{margin-block:1.2em .45em}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;margin-bottom:16px;
  font-size:.75rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--lime);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--lime)}

.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:start}
@media (max-width:960px){
  .grid--2,.grid--3,.grid--split{grid-template-columns:1fr}
}

/* ============ 8. 面板 / 卡片 / 横带 / 标签 ============ */
.panel{
  background:var(--panel);border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);padding:clamp(18px,2.2vw,30px);
}
.card{
  position:relative;padding:clamp(18px,2.2vw,28px);
  background:linear-gradient(160deg,#14322A 0%,#0E2119 100%);
  border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(200,241,53,.32)}
.band{
  position:relative;margin-block:clamp(30px,5vw,74px);
  padding:clamp(22px,3.4vw,44px);
  background:linear-gradient(112deg,#0E2119 0%,#14322A 58%,#0C1F19 100%);
  border:1px solid var(--line-soft);border-left:3px solid var(--cyan);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),calc(100% - 26px) 100%,0 100%);
  display:grid;gap:clamp(18px,2.6vw,38px);
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center;
}
@media (max-width:960px){.band{grid-template-columns:1fr}}

.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--pill);
  font-size:.74rem;font-weight:700;letter-spacing:.12em;
  border:1px solid currentColor;color:var(--cyan);
}
.tag--lime{color:var(--lime)}
.tag--orange{color:var(--orange)}
.tag--clay{color:#D97A5E}
.tag--moss{color:var(--moss)}

.stat{display:flex;flex-direction:column;gap:2px}
.stat-value{
  font-family:var(--font-mono);font-size:clamp(1.6rem,3.4vw,2.9rem);
  line-height:1.05;letter-spacing:-.02em;color:var(--lime);
}
.stat-value--orange{color:var(--orange)}
.stat-label{font-size:.78rem;letter-spacing:.14em;color:var(--moss)}

/* ============ 9. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.7em 1.35em;border-radius:var(--pill);
  border:1px solid rgba(242,245,238,.26);background:transparent;color:var(--paper);
  font-size:.9rem;font-weight:600;letter-spacing:.04em;line-height:1.4;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--orange);border-color:var(--orange);color:#160A03;font-weight:700}
.btn-primary:hover{background:#FF8340;border-color:#FF8340}
.btn-lime{background:var(--lime);border-color:var(--lime);color:#0B1A12;font-weight:700}
.btn-lime:hover{background:#D6FA5C;border-color:#D6FA5C}
.btn-ghost{border-color:rgba(200,241,53,.45);color:var(--lime)}
.btn-ghost:hover{background:rgba(200,241,53,.12)}
.btn-sm{padding:.5em 1em;font-size:.8rem}

/* ============ 10. 面包屑 ============ */
.breadcrumbs{padding-block:clamp(14px,2vw,24px)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.78rem;letter-spacing:.08em;color:var(--moss)}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-item a{color:rgba(242,245,238,.68)}
.breadcrumb-item a:hover{color:var(--lime)}
.breadcrumb-sep{color:rgba(107,143,127,.7)}

/* ============ 11. 手风琴 ============ */
.accordion{display:flex;flex-direction:column;gap:10px}
.accordion-item{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-md);overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.accordion-item[data-open]{border-color:rgba(200,241,53,.36);background:#16372E}
.accordion-trigger{
  display:flex;align-items:center;gap:14px;width:100%;text-align:left;
  padding:16px 20px;color:var(--paper);font-size:1rem;font-weight:600;line-height:1.55;
  transition:color .22s var(--ease);
}
.accordion-trigger:hover{color:var(--lime)}
.accordion-index{flex:0 0 auto;font-family:var(--font-mono);font-size:.8rem;color:var(--cyan)}
.accordion-icon{position:relative;flex:0 0 auto;width:20px;height:20px;margin-left:auto;color:var(--lime)}
.accordion-icon::before,.accordion-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:currentColor;
}
.accordion-icon::before{width:14px;height:2px;border-radius:2px}
.accordion-icon::after{width:2px;height:14px;border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.accordion-item[data-open] .accordion-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.accordion-panel{
  padding:14px 20px 20px;border-top:1px solid var(--line-soft);
  color:rgba(242,245,238,.82);font-size:.95rem;
}
.accordion-panel p:last-child{margin-bottom:0}
.accordion-actions{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}

/* ============ 12. 图片容器 ============ */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:16/10;
  border-radius:var(--radius-lg);border:1px solid rgba(200,241,53,.16);
  background:linear-gradient(140deg,#0E2119 0%,#14322A 55%,#07130F 100%);
}
.media-frame img,.media-frame svg,.media-frame video{width:100%;height:100%;object-fit:cover;display:block}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;
  font-size:.74rem;letter-spacing:.1em;color:rgba(242,245,238,.78);
  background:linear-gradient(180deg,transparent,rgba(7,19,15,.9));
}

/* ============ 13. 表格 ============ */
.table-scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line-soft);border-radius:var(--radius-md);
  background:rgba(14,33,25,.6);
}
.table-scroll table{width:100%;min-width:640px;font-size:.92rem}
.table-scroll th,.table-scroll td{
  padding:12px 16px;text-align:left;white-space:nowrap;
  border-bottom:1px solid var(--line-soft);
}
.table-scroll thead th{
  position:sticky;top:0;z-index:2;
  background:#0E2119;color:var(--lime);
  font-size:.74rem;font-weight:700;letter-spacing:.14em;
}
.table-scroll tbody tr:hover{background:rgba(200,241,53,.05)}
.table-scroll td:first-child{font-family:var(--font-mono);color:var(--cyan)}

/* ============ 14. 显现动效 ============ */
.js [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ============ 15. 响应式：平板与手机 ============ */
@media (max-width:1023px){
  html{scroll-padding-top:118px}
  .site-rail{
    position:sticky;top:0;left:auto;right:auto;bottom:auto;width:100%;
    border-right:0;border-bottom:1px solid var(--line-soft);
    background:linear-gradient(180deg,rgba(14,33,25,.98),rgba(7,19,15,.96));
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  }
  .site-rail::after{display:none}
  .rail-inner{height:auto;padding:12px clamp(14px,4vw,26px) 14px;gap:10px;overflow:visible}
  .rail-top{align-items:center}
  .nav-toggle{display:inline-flex}
  .rail-meta{padding-bottom:0;border-bottom:0;gap:6px}
  .rail-drawer{
    display:none;flex:0 0 auto;gap:14px;padding-top:13px;
    border-top:1px solid var(--line-soft);
  }
  .site-rail[data-open] .rail-drawer{display:flex}
  .nav-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .nav-link{padding:9px 12px;font-size:.86rem}
  .rail-index{flex-direction:row;gap:4px;overflow-x:auto;padding-top:10px}
  .rail-index-link{border-left:0;border-bottom:2px solid transparent;white-space:nowrap}
  .rail-index-link[aria-current="true"]{border-left:0;border-bottom-color:var(--cyan)}
  .rail-foot{
    margin-top:0;padding-top:0;border-top:0;
    flex-direction:row;align-items:center;gap:12px;
  }
  .rail-cta{width:auto;flex:1}
  .rail-mail{text-align:right}
}
@media (min-width:600px){
  .footer-nav{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (min-width:768px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1100px){
  .footer-inner{grid-template-columns:minmax(220px,1.1fr) minmax(0,2fr) minmax(240px,1.25fr)}
}

/* ============ 16. 减少动效 ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .card:hover,.btn:hover{transform:none}
  .scroll-progress__bar{transition:none}
}