:root{
  --bg:#070B14;
  --panel:#0E1626;
  --panel-2:#162033;
  --line:#2A3A52;
  --line-soft:rgba(42,58,82,.62);
  --text:#E9EFF8;
  --muted:#9AACC4;
  --cyan:#33E0FF;
  --cyan-deep:#0F3B4A;
  --orange:#FF7A33;
  --copper:#C08A45;
  --green:#37D39B;
  --grid:rgba(42,58,82,.22);
  --font-display:"Arial Narrow","Helvetica Neue Condensed",system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --radius:6px;
  --cut:14px;
  --wrap:1200px;
  --gutter:24px;
  --ease:160ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:72px 72px;
  background-position:center top;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color var(--ease)}
a:hover{text-decoration:underline;text-underline-offset:3px}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:2px}
#main-content{scroll-margin-top:116px}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:48px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;padding-bottom:14px;border-bottom:1px solid var(--line)}

/* ---------- 排版 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan)}
.eyebrow::before{content:"";display:block;width:18px;height:2px;background:var(--cyan)}
.title-xl{font-family:var(--font-display);font-weight:800;font-size:clamp(30px,4.6vw,48px);line-height:1.08;letter-spacing:-.02em}
.title-lg{font-family:var(--font-display);font-weight:800;font-size:clamp(24px,3vw,36px);line-height:1.12;letter-spacing:-.02em}
.title-md{font-family:var(--font-display);font-weight:800;font-size:clamp(18px,2.2vw,22px);line-height:1.26;letter-spacing:-.01em}
.lede{max-width:62ch;font-size:16px;line-height:1.8;color:var(--muted)}
.mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em}
.divider{height:1px;border:0;background:var(--line);margin-block:32px}

/* ---------- 标签 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:11px;line-height:1.6;letter-spacing:.08em;text-transform:uppercase;padding:2px 7px;border:1px solid var(--line);border-radius:2px;background:var(--panel-2);color:var(--muted)}
.tag--cyan{color:var(--cyan);border-color:var(--cyan-deep);background:rgba(15,59,74,.62)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,51,.45);background:rgba(255,122,51,.1)}
.tag--copper{color:var(--copper);border-color:rgba(192,138,69,.45);background:rgba(192,138,69,.1)}
.tag--green{color:var(--green);border-color:rgba(55,211,155,.42);background:rgba(55,211,155,.1)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border:1px solid transparent;border-radius:3px;font-family:var(--font-body);font-size:14px;font-weight:600;line-height:1.2;text-align:center;cursor:pointer;transition:background-color var(--ease),border-color var(--ease),color var(--ease),transform var(--ease)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#04121A}
.btn--primary:hover{background:#7DEDFF;border-color:#7DEDFF;color:#04121A}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(15,59,74,.5)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-block:14px;border-bottom:1px solid var(--line-soft)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--muted)}
.breadcrumb-item{display:inline-flex;align-items:center}
.breadcrumb-item + .breadcrumb-item::before{content:"/";margin-inline:8px;color:var(--line)}
.breadcrumb-link{color:var(--muted)}
.breadcrumb-link:hover{color:var(--cyan)}
.breadcrumb-item[aria-current="page"]{color:var(--text)}

/* ---------- 网格 ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-6{grid-column:span 6}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}

/* ---------- 面板 ---------- */
.panel{position:relative;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--line);border-radius:var(--radius);padding:20px;transition:transform var(--ease),border-color var(--ease)}
.panel:hover{transform:translateY(-2px);border-color:#3C5170}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line-soft)}
.panel-title{font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:-.01em}
.panel-body{font-size:14px;line-height:1.78;color:var(--muted)}
.cut{overflow:hidden}
.cut::after{content:"";position:absolute;top:0;right:0;width:var(--cut);height:var(--cut);background:linear-gradient(225deg,var(--bg) 0 49%,var(--line) 50% 100%);pointer-events:none}

/* ---------- 步骤条 ---------- */
.stepbar{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.step{position:relative;padding:14px 16px;border:1px dashed var(--line);border-radius:4px;background:var(--panel);font-size:13px;color:var(--muted);transition:transform var(--ease),opacity var(--ease),border-color var(--ease)}
.step--current{border:1px solid var(--cyan);background:rgba(15,59,74,.62);color:var(--text)}
.step--done{border:1px solid var(--green);color:var(--text)}
.step-index{display:block;margin-bottom:6px;font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table caption{padding:12px 14px;text-align:left;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.data-table th,.data-table td{padding:10px 14px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top}
.data-table thead th{background:var(--panel-2);border-bottom:1px solid var(--line);font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.data-table tbody tr:nth-child(even){background:rgba(22,32,51,.5)}
.data-table tbody tr:last-child td{border-bottom:0}

/* ---------- 图片容器（页面阶段放置占位） ---------- */
.media-frame{position:relative;overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line);border-radius:var(--radius);background:
  repeating-linear-gradient(90deg,rgba(42,58,82,.35) 0 1px,transparent 1px 24px),
  repeating-linear-gradient(0deg,rgba(42,58,82,.35) 0 1px,transparent 1px 24px),
  var(--panel-2)}
.media-frame--wide{aspect-ratio:21/9}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-badge{position:absolute;top:10px;right:10px;padding:3px 8px;border:1px solid var(--cyan-deep);border-radius:2px;background:rgba(7,11,20,.84);font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.media-caption{margin-top:10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--muted)}

/* ---------- 文字行动 ---------- */
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan)}
.link-more::after{content:"→";transition:transform var(--ease)}
.link-more:hover{text-decoration:none}
.link-more:hover::after{transform:translateX(3px)}

/* ---------- 跳转链接 ---------- */
.skip-link{position:fixed;top:8px;left:8px;z-index:300;padding:10px 16px;border-radius:2px;background:var(--cyan);color:#04121A;font-size:14px;font-weight:700;transform:translateY(-180%);transition:transform var(--ease)}
.skip-link:focus{transform:translateY(0);color:#04121A;text-decoration:none}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(7,11,20,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.cmd-progress{height:2px;background:var(--panel-2);overflow:hidden}
.cmd-progress-bar{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--cyan),var(--copper));transition:width 120ms linear}
.cmd-bar{background:transparent}
.cmd-inner{display:flex;align-items:center;gap:18px;min-height:62px;padding-block:9px;transition:min-height var(--ease),padding var(--ease)}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text)}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{display:block;width:22px;height:22px;flex:0 0 auto;background:linear-gradient(135deg,var(--cyan) 0 46%,transparent 46% 54%,var(--copper) 54% 100%)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-line{font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:-.01em}
.brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.cmd-meta{display:flex;align-items:center;gap:10px;min-width:0;margin-left:6px}
.cmd-index{flex:0 0 auto;padding:2px 7px;border:1px solid var(--cyan-deep);border-radius:2px;background:rgba(15,59,74,.62);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);white-space:nowrap}
.cmd-hint{overflow:hidden;padding-left:10px;border-left:1px solid var(--line);font-size:13px;color:var(--muted);white-space:nowrap;text-overflow:ellipsis}

.cmd-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-link{font-size:13px;color:var(--muted);white-space:nowrap}
.cmd-link:hover{color:var(--cyan);text-decoration:none}
.cmd-cta{padding:8px 14px;font-size:13px}

.nav-toggle{display:none;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:3px;color:var(--muted);font-size:13px;transition:border-color var(--ease),color var(--ease)}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;transition:transform var(--ease),top var(--ease),bottom var(--ease)}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{bottom:4px;transform:rotate(-45deg)}
.nav-toggle-text{font-size:12px;letter-spacing:.04em}

.nav-row{background:rgba(14,22,38,.92);border-top:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:16px;min-height:44px}
.site-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;flex-wrap:wrap;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-link{display:inline-block;padding:8px 12px;border-bottom:2px solid transparent;font-size:14px;color:var(--muted);transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
.nav-link:hover{color:var(--text);background:var(--panel-2);text-decoration:none}
.nav-link[aria-current="page"]{color:var(--cyan);border-bottom-color:var(--cyan)}
.nav-stamp{margin-left:auto;font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);white-space:nowrap}

.site-header[data-collapsed="true"] .cmd-hint{display:none}
.site-header[data-collapsed="true"] .cmd-inner{min-height:50px;padding-block:6px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:72px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(14,22,38,.96),rgba(7,11,20,1) 62%)}
.footer-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.85fr);gap:48px;padding-block:52px 36px}
.footer-brand-link{display:inline-block;font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.01em;color:var(--text)}
.footer-brand-link:hover{color:var(--cyan);text-decoration:none}
.footer-summary{max-width:34ch;margin-top:14px;font-size:14px;line-height:1.8;color:var(--muted)}
.footer-note{margin-top:18px;padding-left:10px;border-left:3px solid var(--copper);font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.footer-col{min-width:0}
.footer-col-title{margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid var(--line);font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--copper)}
.footer-links{display:grid;gap:10px}
.footer-link{font-size:14px;color:var(--muted)}
.footer-link:hover{color:var(--cyan)}
.footer-contact{display:grid;gap:12px}
.footer-contact-item{display:grid;gap:2px}
.footer-contact-label{font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.footer-contact-value{font-family:var(--font-mono);font-size:13px;color:var(--text);word-break:break-word}
.footer-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-block:18px 28px;border-top:1px solid var(--line)}
.footer-legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.02em;color:var(--muted)}
.footer-hours{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--muted)}
.footer-top-btn{padding:7px 14px;font-size:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .cmd-link{display:none}
}
@media (max-width:980px){
  :root{--gutter:18px}
  .nav-toggle{display:inline-flex}
  .cmd-meta{display:none}
  .cmd-cta{display:none}
  .nav-stamp{display:none}
  .nav-row{position:relative}
  .nav-inner{min-height:6px;padding-block:3px}
  .site-nav{position:absolute;top:100%;left:0;right:0;z-index:120;display:none;max-height:calc(100vh - 130px);overflow:auto;padding:8px var(--gutter) 18px;border-bottom:1px solid var(--line);background:var(--panel);box-shadow:0 22px 44px rgba(0,0,0,.55)}
  .site-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{display:block;padding:12px 4px;border-bottom:1px solid var(--line-soft);border-left:2px solid transparent}
  .nav-link[aria-current="page"]{padding-left:10px;border-left-color:var(--cyan)}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:32px;padding-block:40px 28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .col-3,.col-4,.col-6,.col-8{grid-column:span 6}
}
@media (max-width:620px){
  body{font-size:15px;line-height:1.75}
  .brand-line{font-size:15px}
  .cmd-inner{min-height:56px;gap:12px}
  .cmd-actions{gap:10px}
  .section{padding-block:32px}
  .grid-12{gap:14px}
  .col-3,.col-4,.col-6,.col-8{grid-column:span 12}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-meta{justify-content:flex-start}
  .footer-top-btn{margin-left:auto}
}

/* ---------- 无障碍与动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .panel:hover,.btn:hover{transform:none}
  .link-more:hover::after{transform:none}
}