/* =========================================================
   TP 钱包主站 · 共享样式表  /assets/site.css
   语言：蓝图网格 / 数字安全舱 / 矿物色 + 品牌蓝
   ========================================================= */

/* ---------- 01 tokens ---------- */
:root{
  --bg:#060910;
  --panel:#151C29;
  --line:#29344A;
  --blue:#1D6BFF;
  --cyan:#35E1E4;
  --moss:#6F9B7E;
  --clay:#E07A3C;
  --paper:#F3F0E8;
  --mist:#A9B8CC;
  --glass:rgba(243,240,232,.07);
  --focus:#0B1B36;

  --font-sans:"Inter","HarmonyOS Sans SC","PingFang SC","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,monospace;

  --wrap:1280px;
  --gutter:clamp(16px,4vw,40px);
  --radius:2px;
  --ease:cubic-bezier(.2,.62,.28,1);
  --header-h:60px;
}

/* ---------- 02 reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  background-color:var(--bg);
  scroll-behavior:smooth;
  scroll-padding-top:96px;
  -webkit-text-size-adjust:100%;
}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,hr{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
img,svg{display:block;max-width:100%;}
kbd{font-family:var(--font-mono);font-size:inherit;}
hr{border:0;}
main{display:block;}

/* ---------- 03 base type & canvas ---------- */
body{
  position:relative;
  min-height:100vh;
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.625;
  font-weight:400;
  letter-spacing:.005em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-wrap:break-word;
}
/* 蓝图坐标网格：细格 + 主格 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(41,52,74,.42) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(41,52,74,.42) 1px,transparent 1px),
    linear-gradient(to right,rgba(41,52,74,.20) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(41,52,74,.20) 1px,transparent 1px);
  background-size:320px 320px,320px 320px,40px 40px,40px 40px;
  -webkit-mask-image:radial-gradient(130% 100% at 50% 0%,#000 0%,rgba(0,0,0,.55) 58%,rgba(0,0,0,.12) 100%);
  mask-image:radial-gradient(130% 100% at 50% 0%,#000 0%,rgba(0,0,0,.55) 58%,rgba(0,0,0,.12) 100%);
}
/* 安全舱光晕：蓝 + 青，低饱和 */
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(58% 42% at 8% -6%,rgba(29,107,255,.20),transparent 68%),
    radial-gradient(44% 34% at 94% 2%,rgba(53,225,228,.10),transparent 72%);
}
::selection{background:rgba(29,107,255,.38);color:var(--paper);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:1px;}

/* ---------- 04 layout primitives ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);}
.section{padding:clamp(48px,7vw,96px) 0;}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 20px;
  padding-bottom:16px;margin-bottom:28px;border-bottom:1px solid var(--line);
}
.eyebrow{
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);
}
.section-title{
  font-size:clamp(22px,3vw,32px);font-weight:600;line-height:1.24;letter-spacing:-.012em;
  color:var(--paper);
}
.section-lead{
  max-width:44ch;font-size:15px;line-height:1.75;color:var(--mist);
}
.divider{height:1px;background:var(--line);}
.stack{display:grid;gap:14px;}

.grid{display:grid;gap:clamp(16px,2.4vw,28px);}
.grid-12{grid-template-columns:1fr;}
@media (min-width:760px){
  .grid-12{grid-template-columns:repeat(12,minmax(0,1fr));}
  .col-4{grid-column:span 4;}
  .col-6{grid-column:span 6;}
  .col-8{grid-column:span 8;}
  .col-9{grid-column:span 9;}
}

/* ---------- 05 type utilities ---------- */
.mono{font-family:var(--font-mono);}
.num{font-family:var(--font-mono);font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums;}

/* ---------- 06 buttons & links ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);color:var(--paper);
  font-size:14px;font-weight:500;letter-spacing:.02em;line-height:1.2;
  transition:background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn:hover{border-color:var(--blue);background:var(--focus);color:var(--paper);}
.btn--primary{background:var(--blue);border-color:var(--blue);color:var(--paper);}
.btn--primary:hover{background:#3A81FF;border-color:var(--cyan);color:var(--paper);}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--mist);}
.btn--ghost:hover{color:var(--paper);border-color:var(--cyan);}
.link-arrow{
  display:inline-block;padding-bottom:2px;font-size:14px;color:var(--cyan);
  border-bottom:1px solid rgba(53,225,228,.36);
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--cyan);color:#7BF0F2;}

/* ---------- 07 breadcrumbs ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--mist);
}
.crumbs-item{color:var(--mist);}
a.crumbs-item:hover{color:var(--cyan);}
.crumbs-item[aria-current="page"]{color:var(--paper);}
.crumbs-sep{color:var(--line);}

/* ---------- 08 tags & callout ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 8px;border:1px solid var(--line);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--mist);
  background:rgba(21,28,41,.7);
}
.tag--blue{color:var(--cyan);border-color:rgba(53,225,228,.42);background:rgba(53,225,228,.07);}
.tag--moss{color:var(--moss);border-color:rgba(111,155,126,.45);background:rgba(111,155,126,.08);}
.tag--mist{color:var(--mist);border-color:var(--line);}
.tag--clay{color:var(--paper);border-color:rgba(224,122,60,.5);border-left:2px solid var(--clay);background:rgba(224,122,60,.08);}
.callout{
  padding:16px 18px;border-left:2px solid var(--clay);border-radius:0 var(--radius) var(--radius) 0;
  background:var(--panel);
}
.callout-title{font-size:18px;font-weight:600;letter-spacing:.005em;color:var(--clay);margin-bottom:6px;}

/* ---------- 09 panels (研究板) ---------- */
.panel{
  padding:clamp(18px,2.4vw,26px);
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
}
.panel--glass{
  background:var(--glass);border-color:rgba(243,240,232,.12);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.panel-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--line);
}
.panel-title{font-size:18px;font-weight:600;letter-spacing:-.006em;line-height:1.35;}
.panel-index{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--blue);}
.panel-body{font-size:15px;line-height:1.75;color:var(--mist);}

/* ---------- 10 disclosure (可展开组) ---------- */
.disclosure{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .16s var(--ease);
}
.disclosure[data-open]{border-color:rgba(53,225,228,.32);}
.disclosure-toggle{
  display:flex;width:100%;align-items:center;gap:14px;
  padding:16px 18px;text-align:left;border-radius:var(--radius);
  transition:background-color .16s var(--ease);
}
.disclosure-toggle:hover{background:var(--focus);}
.disclosure-index{font-family:var(--font-mono);font-size:12px;color:var(--blue);letter-spacing:.08em;}
.disclosure-label{flex:1;font-size:15px;font-weight:500;color:var(--paper);line-height:1.5;}
.disclosure-icon{position:relative;flex:0 0 auto;width:12px;height:12px;}
.disclosure-icon::before,.disclosure-icon::after{
  content:"";position:absolute;left:0;top:50%;width:12px;height:1px;background:var(--cyan);
  transition:transform .18s var(--ease),opacity .18s var(--ease);
}
.disclosure-icon::after{transform:rotate(90deg);}
.disclosure[data-open] .disclosure-icon::after{transform:rotate(0deg);opacity:0;}
.disclosure-panel{
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .30s var(--ease),opacity .20s var(--ease);
}
.disclosure[data-open] .disclosure-panel{max-height:48rem;opacity:1;}
.disclosure-inner{
  padding:16px 18px 20px;border-top:1px solid var(--line);
  font-size:15px;line-height:1.78;color:var(--mist);
}

/* ---------- 11 media frames ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16/9;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(158deg,#0B1220 0%,#151C29 58%,#0B1B36 100%);
}
.media-frame > img{width:100%;height:100%;object-fit:cover;}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:
    linear-gradient(to right,rgba(41,52,74,.55) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(41,52,74,.55) 1px,transparent 1px);
  background-size:32px 32px;
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:3/4;}
.media-frame--square{aspect-ratio:1/1;}
.media-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.media-caption{
  display:flex;gap:10px;align-items:baseline;margin-top:9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--mist);
}

/* ---------- 12 reveal ---------- */
@media (prefers-reduced-motion:no-preference){
  [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
  [data-reveal].is-revealed{opacity:1;transform:none;}
}

/* ---------- 13 HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,9,16,.84);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.site-header[data-stuck]{background:rgba(6,9,16,.95);border-bottom-color:rgba(53,225,228,.28);}
.header-inner{
  position:relative;max-width:var(--wrap);margin:0 auto;
  padding-left:var(--gutter);padding-right:var(--gutter);
}

.skip-link{
  position:absolute;top:8px;left:var(--gutter);z-index:20;
  padding:8px 14px;border-radius:var(--radius);
  background:var(--paper);color:var(--bg);
  font-size:13px;font-weight:600;letter-spacing:.02em;
  transform:translateY(-180%);opacity:0;
  transition:transform .16s var(--ease),opacity .16s var(--ease);
}
.skip-link:focus{transform:translateY(0);opacity:1;}

.header-bar{
  display:grid;grid-template-columns:1fr auto;align-items:center;
  gap:8px 14px;padding:11px 0;min-height:var(--header-h);
}
.brand{
  grid-column:1;display:inline-flex;align-items:center;gap:10px;
  font-size:15px;font-weight:600;letter-spacing:-.005em;color:var(--paper);
  transition:color .16s var(--ease);
}
.brand:hover{color:var(--cyan);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;flex:0 0 auto;
  border:1px solid rgba(29,107,255,.75);border-radius:var(--radius);
  background:rgba(29,107,255,.14);
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--cyan);
}
.brand-name{white-space:nowrap;}

.version-line{display:none;}
.version-dot{
  display:inline-block;width:6px;height:6px;flex:0 0 auto;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 3px rgba(53,225,228,.16);
}
.cmd-cta{display:none;}

.nav-toggle{
  grid-column:2;justify-self:end;
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 11px;border:1px solid var(--line);border-radius:var(--radius);
  color:var(--paper);font-size:12px;letter-spacing:.08em;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle-bars{position:relative;width:14px;height:10px;flex:0 0 auto;}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;right:0;height:1px;background:currentColor;
  transition:transform .16s var(--ease),opacity .16s var(--ease);
}
.nav-toggle-bars::before{top:0;}
.nav-toggle-bars::after{bottom:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(4.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-4.5px) rotate(-45deg);}

.site-nav{
  max-height:0;overflow:hidden;visibility:hidden;
  border-top:1px solid transparent;
  transition:max-height .26s var(--ease),visibility .26s var(--ease),border-color .2s var(--ease);
}
.site-nav[data-open]{max-height:min(76vh,560px);overflow-y:auto;visibility:visible;border-top-color:var(--line);}
.nav-list{display:block;padding:4px 0 10px;}
.nav-item + .nav-item{border-top:1px solid var(--line);}
.nav-link{
  display:flex;align-items:center;gap:12px;
  padding:14px 2px;font-size:16px;color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease);
}
.nav-link:hover{color:var(--paper);}
.nav-link[aria-current="page"]{
  color:var(--paper);font-weight:600;
  background:linear-gradient(90deg,rgba(29,107,255,.18),rgba(29,107,255,0));
}
.nav-index{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--blue);}
.nav-link[aria-current="page"] .nav-index{color:var(--cyan);}
.nav-label{line-height:1.3;}
.nav-hint{display:none;}
.nav-extra{
  display:grid;gap:12px;padding:14px 0 18px;border-top:1px solid var(--line);
}
.nav-status{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--mist);
}
.nav-cta{width:100%;}

.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(41,52,74,.55);
}
.scroll-progress > span{
  display:block;width:100%;height:100%;
  transform:scaleX(var(--p,0));transform-origin:0 50%;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
}
@media (prefers-reduced-motion:no-preference){
  .scroll-progress > span{transition:transform .16s linear;}
}

/* --- 命令栏：单行桌面布局 --- */
@media (min-width:960px){
  .site-header{--header-h:70px;}
  .header-inner{
    display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;
    align-items:center;gap:0 20px;min-height:var(--header-h);
  }
  .header-bar{display:contents;}
  .brand{grid-column:auto;order:1;}
  .cmd-cta{display:inline-flex;grid-column:auto;order:4;justify-self:end;}
  .nav-toggle{display:none;grid-column:auto;}
  .version-line{
    display:inline-flex;align-items:center;gap:8px;order:3;grid-column:auto;justify-self:end;
    font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--mist);
    white-space:nowrap;
  }
  .site-nav{
    order:2;grid-column:auto;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    max-height:none;overflow:visible;visibility:visible;border-top:0;
  }
  .nav-list{display:flex;align-items:center;flex-wrap:wrap;padding:0;}
  .nav-item + .nav-item{border-top:0;}
  .nav-link{
    padding:20px 10px;font-size:13px;gap:7px;
    border-bottom:1px solid transparent;
  }
  .nav-link[aria-current="page"]{background:none;border-bottom-color:var(--cyan);font-weight:500;}
  .nav-extra{display:none;}
}
@media (min-width:1200px){
  .nav-link{font-size:14px;padding:22px 12px;}
  .nav-hint{
    display:inline-flex;align-items:center;gap:6px;
    font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--mist);white-space:nowrap;
  }
  .nav-hint kbd{
    padding:2px 6px;border:1px solid var(--line);border-radius:var(--radius);color:var(--cyan);
  }
}

/* ---------- 14 FOOTER ---------- */
.site-footer{
  margin-top:clamp(64px,9vw,120px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(21,28,41,.72) 0%,rgba(6,9,16,.94) 100%);
}
.footer-inner{
  max-width:var(--wrap);margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 30px;
}
.footer-grid{display:grid;gap:32px 40px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr .9fr .9fr 1.3fr;}}

.footer-brand-name{font-size:16px;font-weight:600;letter-spacing:.005em;}
.footer-tag{
  margin-top:7px;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.14em;color:var(--cyan);
}
.footer-note{margin-top:14px;max-width:38ch;font-size:13px;line-height:1.8;color:var(--mist);}

.footer-col-title{
  padding-bottom:10px;margin-bottom:14px;border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--mist);
}
.footer-list{display:grid;gap:10px;}
.footer-link{font-size:14px;color:var(--paper);opacity:.85;transition:color .16s var(--ease),opacity .16s var(--ease);}
.footer-link:hover{color:var(--cyan);opacity:1;}

.footer-contact{display:grid;gap:12px;}
.contact-row{display:grid;gap:2px;}
.contact-key{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--mist);}
.contact-val{font-size:14px;line-height:1.6;color:var(--paper);word-break:break-all;}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 28px;
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
}
.footer-sens{max-width:52ch;font-size:12px;line-height:1.75;color:var(--mist);}
.legal-list{display:flex;flex-wrap:wrap;gap:18px;}
.legal-link{font-size:13px;color:var(--mist);transition:color .16s var(--ease);}
.legal-link:hover{color:var(--cyan);}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 20px;
  margin-top:16px;
}
.footer-copy,.footer-icp{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--mist);
}

/* ---------- 15 motion preference ---------- */
@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;transform:none;}
}