:root{
  --ink:#0E1210;
  --ink-deep:#0a0f0d;
  --ink-green:#12312A;
  --red:#E23A2E;
  --red-soft:rgba(226,58,46,.16);
  --lime:#C6F24E;
  --lime-soft:rgba(198,242,78,.14);
  --cream:#F3EFE6;
  --grey:#8C9A93;
  --orange:#F28C28;
  --white:#FFFFFF;
  --line:rgba(243,239,230,.12);
  --line-soft:rgba(243,239,230,.07);
  --r-xl:32px;
  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --gutter:1.15rem;
  --shell-max:1240px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"DejaVu Sans Mono","Courier New",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 18px 42px rgba(0,0,0,.42);
}
@media (min-width:900px){:root{--gutter:2rem}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--cream);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%}
hr{border:0;border-top:1px solid var(--line);margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
::selection{background:var(--lime);color:var(--ink)}

/* ---------- 布局容器 ---------- */
.shell{width:calc(100% - var(--gutter)*2);max-width:var(--shell-max);margin-inline:auto}
.section{padding-block:clamp(3.25rem,8vw,6.5rem)}
.section--tight{padding-block:clamp(2rem,5vw,3.5rem)}
.section--loose{padding-block:clamp(4.5rem,10vw,8rem)}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line) 15%,var(--line) 85%,transparent);border:0}

.grid{display:grid;gap:clamp(1rem,2.4vw,1.6rem)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.split{display:grid;gap:clamp(1.5rem,4vw,3.5rem);grid-template-columns:1fr}
@media (min-width:900px){
  .split--5-7{grid-template-columns:5fr 7fr}
  .split--7-5{grid-template-columns:7fr 5fr}
}
.skew-band{
  position:relative;
  border-radius:var(--r-lg);
  background:linear-gradient(150deg,var(--ink-green) 0%,var(--ink) 78%);
  border:1px solid var(--line);
  overflow:hidden;
}
.skew-band::after{
  content:"";
  position:absolute;
  inset:auto -10% -60% auto;
  width:60%;
  height:70%;
  background:radial-gradient(circle at 30% 30%,var(--lime-soft),transparent 70%);
  pointer-events:none;
}

/* ---------- 排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--lime);
}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor;opacity:.8}
.sec-index{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;
  color:var(--grey);display:inline-block;margin-bottom:.6rem;
}
.sec-title{
  font-size:clamp(1.75rem,4.4vw,3.1rem);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.015em;
  transform:skewX(-2deg);
  transform-origin:left bottom;
  color:var(--cream);
}
.sec-title--light{font-weight:300;letter-spacing:-.01em}
.sec-sub{margin-top:.9rem;color:rgba(243,239,230,.72);font-size:1.02rem;max-width:62ch}
.sec-head{margin-bottom:clamp(1.75rem,4vw,3rem)}

.prose{max-width:70ch}
.prose p{margin-bottom:1.1em;color:rgba(243,239,230,.8)}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{font-weight:800;letter-spacing:-.01em;line-height:1.25;margin:1.8em 0 .7em;color:var(--cream)}
.prose h2{font-size:clamp(1.35rem,2.6vw,1.8rem)}
.prose h3{font-size:1.15rem}
.prose ul{margin:0 0 1.1em;display:grid;gap:.45rem}
.prose ul li{position:relative;padding-left:1.2rem;color:rgba(243,239,230,.8)}
.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--lime)}
.prose strong{color:var(--cream);font-weight:700}
.prose a{border-bottom:1px solid rgba(198,242,78,.45);color:var(--lime)}
.prose a:hover{border-bottom-color:var(--lime)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.85rem 1.5rem;border-radius:var(--r-pill);
  font-size:.95rem;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn--sm{padding:.62rem 1.1rem;font-size:.85rem}
.btn--primary{background:var(--red);color:var(--cream);box-shadow:0 10px 24px rgba(226,58,46,.24)}
.btn--primary:hover{background:#f04c3d;transform:translateY(-2px)}
.btn--ghost{border-color:rgba(243,239,230,.24);color:var(--cream)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn--lime{background:var(--lime);color:var(--ink)}
.btn--lime:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(198,242,78,.24)}
.btn:active{transform:translateY(0)}

/* ---------- 标签 / 状态点 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.28rem .72rem;border-radius:var(--r-pill);
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--grey);
}
.tag--red{border-color:rgba(226,58,46,.5);background:var(--red-soft);color:#ff8f84}
.tag--lime{border-color:rgba(198,242,78,.42);background:var(--lime-soft);color:var(--lime)}
.tag--plain{border-color:rgba(255,255,255,.3);color:var(--white)}
.status-dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.16);
}
.status-dot--red{background:var(--red);box-shadow:0 0 0 4px rgba(226,58,46,.18)}
.status-dot--orange{background:var(--orange);box-shadow:0 0 0 4px rgba(242,140,40,.18)}

/* ---------- 卡片 / 面板 ---------- */
.panel{
  position:relative;
  padding:clamp(1.25rem,3vw,2.25rem);
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(155deg,rgba(18,49,42,.92),rgba(14,18,16,.94));
}
.panel--red{
  background:linear-gradient(155deg,rgba(226,58,46,.22),rgba(14,18,16,.94));
  border-color:rgba(226,58,46,.4);
}
.panel--lime{
  background:linear-gradient(155deg,rgba(198,242,78,.14),rgba(14,18,16,.94));
  border-color:rgba(198,242,78,.34);
}
.card{
  position:relative;
  display:block;
  padding:clamp(1.1rem,2.4vw,1.6rem);
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--ink-green) 0%,var(--ink) 72%);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.card:hover,.card:focus-visible{transform:translateY(-4px);border-color:rgba(198,242,78,.5);box-shadow:var(--shadow-card)}
.card__index{
  display:block;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.18em;
  color:var(--lime);margin-bottom:.7rem;
}

/* ---------- 数据读数 ---------- */
.stat{display:grid;gap:.35rem}
.stat__value{
  font-family:var(--font-mono);font-weight:800;
  font-size:clamp(1.9rem,5vw,3.2rem);line-height:1;
  letter-spacing:-.02em;color:var(--white);font-variant-numeric:tabular-nums;
}
.stat__value--red{color:var(--red)}
.stat__value--lime{color:var(--lime)}
.stat__label{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--grey);
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:var(--grey);
}
.crumbs a{color:rgba(243,239,230,.7)}
.crumbs a:hover{color:var(--lime)}
.crumbs__sep{color:rgba(243,239,230,.28)}
.crumbs [aria-current="page"]{color:var(--cream)}

/* ---------- 图片容器 ---------- */
.figure{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:
    linear-gradient(140deg,var(--ink-green) 0%,var(--ink) 70%),
    var(--ink);
  isolation:isolate;
}
.figure img{width:100%;height:100%;object-fit:cover;display:block}
.figure--16x9{aspect-ratio:16/9}
.figure--4x3{aspect-ratio:4/3}
.figure--1x1{aspect-ratio:1/1}
.figure--tall{aspect-ratio:3/4}
.figure--wide{aspect-ratio:21/9}
.figure__grid::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(198,242,78,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(198,242,78,.16) 1px,transparent 1px);
  background-size:52px 52px;
  mix-blend-mode:screen;opacity:.42;
}
.figure__cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:1.4rem 1.2rem .95rem;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;
  color:var(--cream);
  background:linear-gradient(0deg,rgba(10,15,13,.94),rgba(10,15,13,0));
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:1rem;top:-4.5rem;z-index:300;
  padding:.6rem 1.1rem;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);
  font-size:.85rem;font-weight:700;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:1rem}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,15,13,.9);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-rail{
  width:calc(100% - var(--gutter)*2);
  max-width:var(--shell-max);
  margin-inline:auto;
  min-height:72px;
  display:flex;align-items:center;gap:.85rem;
  padding-block:.55rem;
}
.brand{display:flex;align-items:center;gap:.65rem;flex:0 0 auto;min-width:0}
.brand__mark{
  width:38px;height:38px;flex:0 0 auto;border-radius:12px;
  display:grid;place-items:center;
  background:var(--red);color:var(--cream);
  font-weight:800;font-size:1.02rem;letter-spacing:.02em;
  box-shadow:0 8px 18px rgba(226,58,46,.28);
}
.brand__text{display:block;min-width:0}
.brand__name{display:block;font-size:1rem;font-weight:700;letter-spacing:.02em;color:var(--cream);line-height:1.25}
.brand__meta{
  display:block;font-family:var(--font-mono);font-size:.6rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--grey);line-height:1.4;
}
.brand--footer{margin-bottom:1rem}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;margin-left:auto;
  padding:.5rem .85rem;border-radius:var(--r-pill);
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.12em;
  color:var(--cream);
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .24s var(--ease),opacity .2s var(--ease)}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.site-nav{margin-left:auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:.1rem}
.nav-list__item{flex:0 0 auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.5rem .7rem;border-radius:var(--r-pill);
  font-size:.9rem;color:rgba(243,239,230,.72);
  transition:color .22s var(--ease),background-color .22s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--cream);background:rgba(243,239,230,.07)}
.nav-link__index{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.08em;color:var(--grey)}
.nav-link__label{display:inline-block}
.nav-link[aria-current="page"]{color:var(--cream);background:var(--red-soft)}
.nav-link[aria-current="page"] .nav-link__index{color:var(--lime)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:.7rem;right:.7rem;bottom:.16rem;height:2px;
  border-radius:2px;background:var(--red);
}
.nav-link.is-active{color:var(--cream)}
.nav-link.is-active .nav-link__index{color:var(--lime)}

.header-tools{display:flex;align-items:center;gap:.4rem;flex:0 0 auto}
.tool-link{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.45rem .8rem;border-radius:var(--r-pill);
  border:1px solid var(--line);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:rgba(243,239,230,.82);
  transition:border-color .22s var(--ease),color .22s var(--ease),background-color .22s var(--ease);
  white-space:nowrap;
}
.tool-link:hover{border-color:var(--lime);color:var(--lime)}
.tool-link--save{border-color:rgba(226,58,46,.5);background:var(--red-soft);color:var(--cream)}
.tool-link--save:hover{border-color:var(--red);color:var(--cream);background:rgba(226,58,46,.26)}
.tool-link__text{display:inline-block}
.tool-link__dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.18)}

.scroll-progress{height:2px;width:100%;background:rgba(243,239,230,.08);overflow:hidden}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--red),var(--orange) 48%,var(--lime));
  transition:transform .1s linear;
}

@media (max-width:1080px){
  .nav-toggle{display:inline-flex;order:3}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    margin-left:0;
    padding:.6rem var(--gutter) 1.2rem;
    background:var(--ink-deep);
    border-bottom:1px solid rgba(198,242,78,.24);
    max-height:0;overflow:hidden;visibility:hidden;opacity:0;
    transition:max-height .32s var(--ease),opacity .24s var(--ease),visibility .24s var(--ease);
  }
  .site-header[data-open] .site-nav{max-height:min(78vh,640px);overflow-y:auto;visibility:visible;opacity:1}
  .nav-list{flex-direction:column;align-items:stretch;gap:.15rem}
  .nav-link{justify-content:flex-start;padding:.78rem .85rem;border-radius:14px;font-size:1rem}
  .nav-link[aria-current="page"]{background:var(--red-soft)}
  .nav-link[aria-current="page"]::after{left:.85rem;right:auto;width:26px;bottom:.5rem}
  .header-tools{order:2;margin-left:auto}
}
@media (max-width:640px){
  .brand__meta{display:none}
  .tool-link{padding:.5rem .65rem}
  .tool-link__text{display:none}
  .tool-link--save{padding:.5rem .7rem}
  .nav-toggle__label{display:none}
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(3.5rem,8vw,6rem);
  background:linear-gradient(180deg,var(--ink) 0%,#0a1512 62%,var(--ink-deep) 100%);
  border-top:1px solid var(--line);
}
.footer-shell{
  width:calc(100% - var(--gutter)*2);
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-block:clamp(2.5rem,6vw,4rem) 1.5rem;
}
.footer-grid{
  display:grid;
  gap:clamp(1.6rem,4vw,2.4rem);
  grid-template-columns:1fr;
}
@media (min-width:700px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1000px){
  .footer-grid{grid-template-columns:minmax(260px,1.5fr) repeat(3,minmax(140px,1fr))}
}
.footer-brand__note{
  margin-top:1rem;margin-bottom:1.3rem;
  font-size:.9rem;line-height:1.75;color:rgba(243,239,230,.68);
  max-width:36ch;
}
.footer-col__heading{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--lime);
  margin-bottom:1rem;font-weight:500;
}
.footer-list{display:grid;gap:.1rem}
.footer-list a{
  display:inline-block;padding:.32rem 0;
  font-size:.92rem;color:rgba(243,239,230,.72);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-list a:hover{color:var(--lime);transform:translateX(3px)}
.footer-list--contact li{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.04em;
  color:rgba(243,239,230,.7);padding:.32rem 0;
}
.footer-key{color:var(--grey);margin-right:.5rem}
.footer-base{
  margin-top:clamp(2rem,5vw,3rem);
  padding-top:1.3rem;
  border-top:1px dashed var(--line);
  display:grid;gap:.35rem;
}
.footer-base__line{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;
  color:rgba(243,239,230,.62);
}
.footer-base__line--muted{color:var(--grey)}

/* ---------- 可展开内容组 ---------- */
.disclosure{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(155deg,rgba(18,49,42,.72),rgba(14,18,16,.9));
  overflow:hidden;
}
.disclosure + .disclosure{margin-top:.75rem}
.disclosure__btn{
  width:100%;display:flex;align-items:center;gap:.9rem;
  padding:1rem clamp(1rem,2.4vw,1.5rem);
  text-align:left;font-size:1rem;font-weight:700;color:var(--cream);
  transition:color .2s var(--ease);
}
.disclosure__btn:hover{color:var(--lime)}
.disclosure__btn::after{
  content:"";margin-left:auto;flex:0 0 auto;
  width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transition:transform .24s var(--ease);
}
.disclosure__btn[aria-expanded="true"]::after{transform:rotate(-135deg)}
.disclosure__btn[aria-expanded="true"]{color:var(--lime)}
.disclosure__panel{padding:0 clamp(1rem,2.4vw,1.5rem) 1.4rem}
.disclosure__panel[hidden]{display:none}
.disclosure__panel-inner{
  padding-top:1rem;border-top:1px solid var(--line-soft);
  color:rgba(243,239,230,.78);font-size:.96rem;
}

/* ---------- 入场动效 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .58s var(--ease),transform .58s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
[data-reveal="left"]{transform:translateX(-12px)}
[data-reveal="right"]{transform:translateX(12px)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 无障碍动效偏好 ---------- */
@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 !important;transform:none !important}
  .scroll-progress__bar{transition:none}
}