:root{
  --ink:#0B1230;
  --ink-2:#16204A;
  --panel:#F2F5FC;
  --teal:#2EC4B6;
  --teal-deep:#17877C;
  --milk:#D9BE96;
  --orange:#FF7A2F;
  --cold:#3F7BFF;
  --hot:#FF4D5E;
  --gray:#98A2C0;

  --line-soft:rgba(152,162,192,.18);
  --line-milk:rgba(217,190,150,.28);
  --line-teal:rgba(46,196,182,.42);

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

  --t-micro:150ms;
  --t-panel:280ms;
  --t-timeline:400ms;
  --ease:cubic-bezier(.22,.8,.24,1);

  --header-h:66px;
  --content-max:1320px;
  --gutter:clamp(16px,3.2vw,40px);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;

  --grad-track:linear-gradient(90deg,#3F7BFF 0%,#FF4D5E 100%);
  --grad-night:radial-gradient(120% 80% at 20% 0%,#16204A 0%,#0B1230 72%);
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 20px);
}
html.nav-open{overflow:hidden}

body{
  margin:0;
  min-height:100vh;
  background:var(--ink);
  color:var(--panel);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-wrap:anywhere;
}

img,svg,video{max-width:100%;height:auto;display:block}

a{color:var(--teal);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:#57dbd0}

ul,ol{padding-left:1.15em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

::selection{background:rgba(255,122,47,.35);color:#fff}

:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px}

h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.012em;
  margin:1.6em 0 .62em;
  color:var(--panel);
}
h1:first-child,h2:first-child,h3:first-child,h4:first-child{margin-top:0}
h1{font-size:clamp(2.4rem,6vw,5.2rem);font-weight:900;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.35rem)}
h3{font-size:clamp(1.2rem,2vw,1.6rem);font-weight:700}
h4{font-size:1.06rem;font-weight:700;letter-spacing:0}
h5{font-size:.98rem;font-weight:700;letter-spacing:0}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:linear-gradient(180deg,#16204A 0%,#0F183C 100%);
  border-bottom:1px solid var(--line-teal);
  transition:box-shadow var(--t-panel) var(--ease);
}
.site-header[data-scrolled="true"]{box-shadow:0 12px 34px rgba(4,8,24,.6)}

.header-frame{
  display:grid;
  grid-template-columns:auto 1fr auto auto;
  grid-template-areas:"brand nav utils toggle";
  align-items:center;
  gap:clamp(10px,1.8vw,26px);
  width:100%;
  max-width:var(--content-max);
  margin:0 auto;
  padding:0 var(--gutter);
  min-height:var(--header-h);
  transition:min-height var(--t-panel) var(--ease);
}
.site-header[data-scrolled="true"] .header-frame{min-height:56px}

.skip-link{
  position:absolute;
  left:14px;
  top:-120px;
  z-index:120;
  padding:10px 20px;
  background:var(--orange);
  color:#1A0A02;
  font-weight:700;
  font-size:.9rem;
  text-decoration:none;
  border-radius:0 0 14px 14px;
  transition:top var(--t-micro) var(--ease);
}
.skip-link:focus{top:0;color:#1A0A02}

.brand-track{
  grid-area:brand;
  display:flex;
  align-items:center;
  gap:14px;
  padding-right:clamp(10px,1.6vw,22px);
  border-right:1px solid var(--line-milk);
  min-width:0;
}
.brand-mark{
  display:flex;
  align-items:baseline;
  gap:9px;
  text-decoration:none;
  color:var(--panel);
  white-space:nowrap;
}
.brand-glyph{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.3rem,2vw,1.7rem);
  letter-spacing:.01em;
  color:var(--teal);
  font-stretch:condensed;
  line-height:1;
}
.brand-text{
  font-weight:600;
  font-size:.94rem;
  letter-spacing:.02em;
  color:var(--panel);
}
.brand-build{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:2px 9px;
  border:1px solid var(--line-milk);
  border-radius:999px;
  font-size:11.5px;
  letter-spacing:.08em;
  line-height:1.6;
  white-space:nowrap;
}
.brand-build-key{color:var(--gray)}
.brand-build-val{color:var(--milk)}

.site-nav{
  grid-area:nav;
  display:flex;
  justify-content:flex-end;
  min-width:0;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(2px,1vw,14px);
  list-style:none;
  margin:0;
  padding:0;
}
.nav-list a{
  display:inline-block;
  padding:8px 11px;
  border-radius:999px;
  color:var(--gray);
  font-size:clamp(.82rem,.95vw,.95rem);
  font-weight:500;
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--t-micro) var(--ease),background-color var(--t-micro) var(--ease);
}
.nav-list a:hover{color:var(--panel);background:rgba(46,196,182,.14)}
.nav-list a[aria-current="page"]{
  color:#06201D;
  background:var(--teal);
  font-weight:700;
}
.nav-list a[aria-current="page"]:hover{color:#06201D;background:var(--teal)}

.header-utils{
  grid-area:utils;
  display:flex;
  align-items:center;
  gap:10px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:.88rem;
  font-weight:600;
  line-height:1.4;
  text-decoration:none;
  white-space:nowrap;
  cursor:pointer;
  transition:background-color var(--t-micro) var(--ease),border-color var(--t-micro) var(--ease),color var(--t-micro) var(--ease),box-shadow var(--t-micro) var(--ease);
}
.btn-line{
  color:var(--teal);
  border-color:var(--line-teal);
  background:transparent;
}
.btn-line:hover{
  color:#7DE6DC;
  background:rgba(46,196,182,.16);
  border-color:var(--teal);
}
.btn-hot{
  color:#1A0A02;
  background:var(--orange);
  border-color:var(--orange);
}
.btn-hot:hover{
  color:#1A0A02;
  background:#FF9350;
  border-color:#FF9350;
  box-shadow:0 0 0 4px rgba(255,122,47,.18);
}

.nav-toggle{
  grid-area:toggle;
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 15px;
  background:rgba(46,196,182,.1);
  border:1px solid var(--line-teal);
  border-radius:999px;
  color:var(--panel);
  font-family:var(--font-body);
  font-size:.84rem;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:background-color var(--t-micro) var(--ease),border-color var(--t-micro) var(--ease);
}
.nav-toggle:hover{background:rgba(46,196,182,.22);border-color:var(--teal)}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:background-color var(--t-micro) var(--ease);
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform var(--t-micro) var(--ease);
}
.nav-toggle-bars::before{top:-5px}
.nav-toggle-bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-5px) rotate(-45deg)}

.header-ticker{
  display:none;
  align-items:center;
  gap:10px;
  margin:0;
  padding:7px var(--gutter) 10px;
  border-top:1px solid rgba(217,190,150,.16);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--milk);
}
.ticker-sep{color:var(--teal)}

.header-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:var(--grad-track);
  pointer-events:none;
  will-change:transform;
}

/* ============ 通用容器 ============ */
.wrap{
  width:100%;
  max-width:var(--content-max);
  margin:0 auto;
  padding:0 var(--gutter);
}
.wrap-narrow{max-width:840px}

.section{padding:clamp(40px,6vw,88px) 0}
.section-head{margin-bottom:clamp(20px,3vw,36px)}
.kicker{
  display:inline-block;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--teal);
}
.lede{
  max-width:62ch;
  font-size:clamp(1rem,1.4vw,1.15rem);
  line-height:1.75;
  color:var(--gray);
}

.layout{
  display:grid;
  gap:clamp(20px,3vw,40px);
  grid-template-columns:minmax(0,7fr) minmax(0,3fr);
  align-items:start;
}
.layout-main{min-width:0}
.layout-aside{min-width:0;display:grid;gap:16px}

.side-index{
  position:sticky;
  top:calc(var(--header-h) + 22px);
  padding-left:16px;
  border-left:2px solid var(--line-soft);
}
.side-index-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:6px;
}
.side-index-list a{
  display:block;
  padding:3px 0;
  font-size:14px;
  color:var(--gray);
  text-decoration:none;
  transition:color var(--t-micro) var(--ease);
}
.side-index-list a:hover,
.side-index-list a[aria-current="true"]{color:var(--teal)}

.breadcrumb{padding-top:18px}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--gray);
}
.breadcrumb-list li+li::before{content:"/";margin-right:8px;color:rgba(152,162,192,.5)}
.breadcrumb-list a{color:var(--gray);text-decoration:none}
.breadcrumb-list a:hover{color:var(--teal)}
.breadcrumb-list [aria-current="page"]{color:var(--milk)}

/* ============ 卡片与面板 ============ */
.panel{
  background:var(--ink-2);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:clamp(18px,2.6vw,30px);
}
.card{
  background:linear-gradient(160deg,rgba(22,32,74,.94),rgba(11,18,48,.94));
  border:1px solid var(--line-soft);
  border-radius:var(--radius-md);
  padding:clamp(16px,2.2vw,24px);
  transition:transform var(--t-micro) var(--ease),border-color var(--t-micro) var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--line-teal)}
.card > :last-child{margin-bottom:0}

.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

.stat{display:grid;gap:4px}
.stat-value{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.8rem,4vw,3rem);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--panel);
}
.stat-label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--gray);
}

/* ============ 胶囊状态 ============ */
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 11px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.7;
  letter-spacing:.04em;
  white-space:nowrap;
}
.pill-teal{color:var(--teal);border-color:var(--line-teal);background:rgba(46,196,182,.1)}
.pill-orange{color:var(--orange);border-color:rgba(255,122,47,.45);background:rgba(255,122,47,.12)}
.pill-hot{color:var(--hot);border-color:rgba(255,77,94,.45);background:rgba(255,77,94,.1)}
.pill-cold{color:#7FA3FF;border-color:rgba(63,123,255,.45);background:rgba(63,123,255,.12)}
.pill-gray{color:var(--gray);border-color:rgba(152,162,192,.35);background:rgba(152,162,192,.08)}

/* ============ 数据表 ============ */
.table-wrap{
  overflow-x:auto;
  background:rgba(22,32,74,.55);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-md);
}
.data-table{
  width:100%;
  min-width:520px;
  border-collapse:collapse;
  font-size:15px;
}
.data-table th{
  padding:11px 14px;
  border-bottom:1px solid var(--line-milk);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.1em;
  text-align:left;
  color:var(--gray);
  white-space:nowrap;
}
.data-table td{
  padding:13px 14px;
  border-bottom:1px solid rgba(152,162,192,.13);
  color:var(--panel);
  vertical-align:top;
}
.data-table tbody tr:last-child td{border-bottom:0}

/* ============ 可展开内容组 ============ */
.disclosure{
  background:rgba(22,32,74,.55);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-md);
  transition:border-color var(--t-panel) var(--ease);
}
.disclosure[data-open]{border-color:var(--orange)}
.disclosure-btn{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:16px 20px;
  background:none;
  border:0;
  color:var(--panel);
  font-family:var(--font-body);
  font-size:1rem;
  font-weight:600;
  line-height:1.55;
  text-align:left;
  cursor:pointer;
  transition:color var(--t-micro) var(--ease);
}
.disclosure-btn:hover{color:var(--teal)}
.disclosure-btn[aria-expanded="true"]{color:var(--orange)}
.disclosure-btn::after{
  content:"";
  flex:0 0 auto;
  width:14px;
  height:14px;
  background:
    linear-gradient(currentColor,currentColor) center/14px 2px no-repeat,
    linear-gradient(currentColor,currentColor) center/2px 14px no-repeat;
  transition:transform var(--t-panel) var(--ease);
}
.disclosure[data-open] .disclosure-btn::after{transform:rotate(90deg)}
.disclosure-panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows var(--t-panel) var(--ease);
}
.disclosure[data-open] .disclosure-panel{grid-template-rows:1fr}
.disclosure-panel-inner{overflow:hidden}
.disclosure-body{
  padding:0 20px 20px;
  color:var(--gray);
  font-size:15.5px;
  line-height:1.75;
}

/* ============ 横向卡带 ============ */
.cartridge{
  display:flex;
  gap:clamp(12px,1.8vw,20px);
  margin:0 -4px;
  padding:4px 4px 18px;
  list-style:none;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scroll-snap-type:x proximity;
  scrollbar-width:thin;
  scrollbar-color:var(--teal) rgba(152,162,192,.16);
}
.cartridge::-webkit-scrollbar{height:6px}
.cartridge::-webkit-scrollbar-track{background:rgba(152,162,192,.16);border-radius:3px}
.cartridge::-webkit-scrollbar-thumb{background:var(--teal);border-radius:3px}
.cartridge-item{
  flex:0 0 clamp(220px,32%,360px);
  scroll-snap-align:start;
}

/* ============ 图片容器 ============ */
.media{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-md);
  background:var(--grad-night);
}
.media img,
.media svg,
.media video{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media-caption{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--gray);
}
.media-grid{
  display:grid;
  gap:clamp(14px,2vw,22px);
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  padding-top:clamp(36px,5vw,68px);
  background:linear-gradient(180deg,#0B1230 0%,#080D24 100%);
  border-top:1px solid var(--line-teal);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(46,196,182,.06) 0 1px,transparent 1px 88px);
  pointer-events:none;
}
.footer-frame{
  position:relative;
  z-index:1;
  display:grid;
  gap:clamp(26px,4vw,60px);
  grid-template-columns:minmax(0,1.2fr) minmax(0,1.6fr) minmax(0,1.3fr);
  width:100%;
  max-width:var(--content-max);
  margin:0 auto;
  padding:0 var(--gutter);
}
.footer-wordmark{
  margin:0 0 8px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.5rem,3vw,2.1rem);
  letter-spacing:-.01em;
  color:var(--panel);
}
.footer-domain{
  margin:0 0 14px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--teal);
}
.footer-note{
  max-width:36ch;
  margin:0;
  font-size:13px;
  line-height:1.72;
  color:var(--gray);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.footer-col{min-width:0}
.footer-col-title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--teal);
}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:9px;
}
.footer-links a{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:var(--gray);
  text-decoration:none;
  transition:color var(--t-micro) var(--ease);
}
.footer-links a::before{
  content:"";
  width:12px;
  height:1px;
  background:var(--milk);
  opacity:.5;
  transition:width var(--t-micro) var(--ease),opacity var(--t-micro) var(--ease),background-color var(--t-micro) var(--ease);
}
.footer-links a:hover{color:var(--panel)}
.footer-links a:hover::before{width:18px;opacity:1;background:var(--orange)}
.footer-contact{min-width:0}
.footer-contact-line{
  margin:0 0 10px;
  font-size:14px;
  line-height:1.65;
  color:var(--panel);
}
.footer-contact-line .mono{
  margin-right:9px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--milk);
}
.footer-legal{
  position:relative;
  z-index:1;
  margin-top:clamp(28px,4vw,52px);
  border-top:1px solid var(--line-milk);
}
.footer-legal p{
  max-width:var(--content-max);
  margin:0 auto;
  padding:18px var(--gutter) 28px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.05em;
  text-align:center;
  color:var(--gray);
}

/* ============ 显现动效 ============ */
.js-ready [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity var(--t-panel) var(--ease),transform var(--t-panel) var(--ease);
}
.js-ready [data-reveal][data-reveal-state="in"]{
  opacity:1;
  transform:none;
}

/* ============ 响应式 ============ */
@media (max-width:1120px){
  .header-utils{display:none}
}

@media (max-width:980px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .side-index{position:static;padding-left:0;border-left:0}
}

@media (max-width:900px){
  :root{--header-h:58px}

  .header-frame{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:
      "brand toggle"
      "ticker ticker";
    gap:0;
    align-items:center;
    min-height:auto;
    padding-top:9px;
  }
  .brand-track{border-right:0;padding-right:0}
  .brand-build{display:none}
  .header-ticker{display:flex}
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:90;
    max-height:78vh;
    overflow-y:auto;
    padding:20px clamp(16px,5vw,30px) calc(24px + env(safe-area-inset-bottom,0px));
    background:linear-gradient(180deg,#16204A 0%,#0B1230 100%);
    border-top:1px solid var(--line-teal);
    border-radius:24px 24px 0 0;
    box-shadow:0 -20px 46px rgba(0,0,0,.55);
    transform:translateY(105%);
    transition:transform var(--t-panel) var(--ease);
  }
  .site-nav[data-open]{transform:translateY(0)}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
  }
  .nav-list a{
    display:block;
    padding:13px 16px;
    border-radius:14px;
    font-size:1rem;
    color:var(--panel);
  }
  .nav-list a[aria-current="page"]{
    background:rgba(46,196,182,.18);
    color:var(--teal);
    box-shadow:inset 3px 0 0 var(--teal);
  }
  .nav-list a[aria-current="page"]:hover{background:rgba(46,196,182,.24)}

  .footer-frame{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:640px){
  body{font-size:16px}
  .footer-nav{grid-template-columns:minmax(0,1fr)}
  .footer-note{max-width:none}
  .cartridge-item{flex-basis:min(80%,300px)}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .card:hover{transform:none}
  .js-ready [data-reveal]{opacity:1;transform:none}
  .header-progress{transition:none}
}