/* ============================================================
   TPG电子平台 · 共享样式表 / assets/site.css
   深靛蓝基底 / 荧光青与暖金数据高亮 / 品红张力
   ============================================================ */

:root{
  --ink:#0B1B33;
  --ink-deep:#081528;
  --ink-card:#102A4A;
  --ink-card-hi:#12304F;
  --rock:#6E7A85;
  --moss:#4F6B55;
  --clay:#B5714A;
  --cream:#F2EDE3;
  --mist:#C9D1D9;
  --cyan:#35F0D0;
  --gold:#F0B24A;
  --magenta:#E0489A;
  --line:rgba(242,237,227,.13);
  --line-strong:rgba(242,237,227,.26);
  --shadow-card:0 20px 44px -30px rgba(0,0,0,.95);
  --r-lg:26px;
  --r-md:16px;
  --r-pill:999px;
  --wrap:1180px;
  --mono:ui-monospace,"SFMono-Regular","Cascadia Mono","Consolas","Liberation Mono","Menlo","Noto Sans Mono CJK SC",monospace;
  --sans:"Helvetica Neue","Arial Narrow",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--mono);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--mist);
  background-color:var(--ink);
  background-image:
    radial-gradient(70rem 45rem at 6% -14%,rgba(53,240,208,.085),transparent 62%),
    radial-gradient(52rem 38rem at 98% 2%,rgba(240,178,74,.07),transparent 60%),
    radial-gradient(46rem 32rem at 40% 108%,rgba(224,72,154,.06),transparent 62%),
    linear-gradient(180deg,#0B1B33 0%,#091729 55%,#0B1B33 100%);
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block;height:auto}
::selection{background:var(--cyan);color:#04201C}

/* ---------- 中文排版与基础元素 ---------- */
h1,h2,h3,h4,h5{
  font-family:var(--sans);
  font-weight:700;
  line-height:1.18;
  letter-spacing:.01em;
  color:var(--cream);
  margin:0 0 .6em;
}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:clamp(1.15rem,2vw,1.4rem)}
h4{font-size:1.02rem;letter-spacing:.04em}
p{margin:0 0 1em}
ul,ol{padding-left:1.3em}
strong{color:var(--cream)}
hr{border:0}
a{color:var(--cream);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease}
a:hover{color:var(--cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* ---------- 布局容器 ---------- */
.wrap{width:min(100% - 2.4rem,var(--wrap));margin-inline:auto}
.page-body{padding:2.4rem 0 5rem}
.prose{max-width:74ch}
.prose p{margin:0 0 1.15em}
.lede{font-size:1.05rem;line-height:1.92;max-width:62ch;color:var(--mist)}

.grid{display:grid;gap:1.35rem}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--aside{grid-template-columns:minmax(0,1fr) minmax(0,2.1fr)}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;left:1rem;top:-4.5rem;z-index:200;
  padding:.62rem 1.15rem;
  background:var(--cyan);color:#04201C;
  border-radius:var(--r-pill);
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  transition:top .2s ease;
}
.skip-link:focus{top:1rem;color:#04201C}

/* ============================================================
   刊头
   ============================================================ */
.masthead{
  position:relative;z-index:30;
  background:linear-gradient(180deg,#0C2039 0%,#0B1B33 72%);
  border-bottom:1px solid var(--line-strong);
}
.masthead::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,240,208,.55),rgba(240,178,74,.5),transparent);
  opacity:.85;pointer-events:none;
}

/* 档案条 */
.mast-utility{border-bottom:1px solid var(--line);background:rgba(8,21,40,.55)}
.mast-utility__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.4rem 1.4rem;min-height:40px;padding:.35rem 0;
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
}
.mast-utility__group{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .6rem;margin:0}
.mast-utility__item{color:var(--rock);margin:0}
.mast-utility__link{color:var(--mist);border-bottom:1px solid transparent;padding-bottom:1px}
.mast-utility__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.mast-utility__link--cta{color:var(--gold)}
.mast-utility__link--cta:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.mast-utility__sep{color:var(--moss)}

/* 居中报头 */
.mast-brand{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:1.5rem;padding:2.2rem 0 1.7rem;
}
.mast-brand__side{
  margin:0;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--rock);line-height:1.7;
}
.mast-brand__side--end{text-align:right}
.mast-lockup{display:block;text-align:center}
.mast-lockup__mark{
  display:block;
  font-family:var(--sans);font-weight:800;text-transform:uppercase;
  font-size:clamp(2.6rem,7vw,4.6rem);line-height:.98;letter-spacing:.17em;
  color:var(--cream);text-indent:.17em;
}
.mast-lockup:hover .mast-lockup__mark{color:var(--cream)}
.mast-lockup__sub{
  display:inline-block;margin-top:.75rem;padding-top:.55rem;
  border-top:1px solid var(--line-strong);
  font-size:11.5px;letter-spacing:.34em;text-transform:uppercase;
  color:var(--cyan);text-indent:.34em;
}
.mast-lockup:hover .mast-lockup__sub{color:var(--gold);border-top-color:rgba(240,178,74,.5)}

/* 移动导航按钮行 */
.nav-bar{display:none}
.nav-bar__label{margin:0;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--rock)}
.nav-toggle{
  align-items:center;gap:.6rem;
  background:transparent;border:1px solid var(--line-strong);color:var(--cream);
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  padding:.5rem .95rem;border-radius:var(--r-pill);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle[aria-expanded="true"]{background:var(--cyan);border-color:var(--cyan);color:#04201C}
.nav-toggle__box{display:inline-flex;flex-direction:column;justify-content:space-between;width:14px;height:10px}
.nav-toggle__box span{display:block;height:1.5px;border-radius:2px;background:currentColor}

/* 主导航 */
.mast-nav{border-top:1px solid var(--line)}
.nav-list{
  list-style:none;margin:0;padding:.7rem 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.35rem;
}
.nav-item{list-style:none}
.nav-link{
  display:inline-flex;align-items:baseline;gap:.5rem;
  padding:.6rem 1.05rem;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:13px;letter-spacing:.06em;color:var(--mist);
  white-space:nowrap;
}
.nav-link__idx{font-size:10px;letter-spacing:.14em;color:var(--rock)}
.nav-link:hover{color:var(--cream);background:rgba(53,240,208,.08);border-color:rgba(53,240,208,.35)}
.nav-link:hover .nav-link__idx{color:var(--cyan)}
.nav-link[aria-current="page"]{background:var(--cyan);border-color:var(--cyan);color:#04201C}
.nav-link[aria-current="page"] .nav-link__idx{color:rgba(11,27,51,.62)}

/* ============================================================
   通用组件
   ============================================================ */

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.72rem 1.35rem;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:transparent;color:var(--cream);
  font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  cursor:pointer;text-decoration:none;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(53,240,208,.08)}
.btn--primary{background:var(--gold);border-color:var(--gold);color:#211605}
.btn--primary:hover{background:var(--cyan);border-color:var(--cyan);color:#04201C}
.btn--ghost{border-color:var(--line-strong);color:var(--mist)}
.btn--ghost:hover{color:var(--cream);border-color:var(--cream)}
.btn--sm{padding:.45rem .95rem;font-size:11.5px;letter-spacing:.14em}

/* 面包屑 */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;
  padding:1.15rem 0;margin:0;
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--rock);
  list-style:none;
}
.breadcrumb a{color:var(--mist)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb__sep{color:var(--moss)}
.breadcrumb [aria-current="page"]{color:var(--gold)}

/* 排版零件 */
.display{
  display:block;margin:0;
  font-family:var(--sans);font-weight:800;text-transform:uppercase;
  font-size:clamp(2.4rem,7vw,5.4rem);line-height:1;letter-spacing:.02em;
  color:var(--cream);
}
.eyebrow{margin:0 0 .9rem;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.index-num{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.num{font-family:var(--mono);font-weight:700;font-size:1.5em;line-height:1;color:var(--cyan);letter-spacing:.01em}
.num--gold{color:var(--gold)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.8rem;
  padding-bottom:.9rem;margin-bottom:1.6rem;
  border-bottom:1px dashed var(--line-strong);
}
.rule{height:1px;border:0;margin:2rem 0;background:linear-gradient(90deg,var(--moss),rgba(79,107,85,0))}

/* 标签与胶囊 */
.tag{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.22rem .7rem;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--mist);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
}
.tag--cyan{color:var(--cyan);border-color:rgba(53,240,208,.45)}
.tag--gold{color:var(--gold);border-color:rgba(240,178,74,.45)}
.tag--clay{color:#E9A377;border-color:rgba(181,113,74,.5)}
.tag--magenta{color:var(--magenta);border-color:rgba(224,72,154,.5)}

.capsule-bar{display:flex;flex-wrap:wrap;gap:.5rem;padding:.3rem 0}
.capsule{
  appearance:none;cursor:pointer;
  background:transparent;border:1px solid var(--line-strong);color:var(--mist);
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  padding:.5rem 1.05rem;border-radius:var(--r-pill);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.capsule:hover{color:var(--cyan);border-color:var(--cyan)}
.capsule[aria-pressed="true"],.capsule--active{background:var(--cyan);border-color:var(--cyan);color:#04201C}

/* 卡片 */
.card{
  position:relative;
  background:var(--ink-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:1.6rem 1.5rem;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,background-color .22s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(53,240,208,.42);background:var(--ink-card-hi)}
.card__head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.7rem;margin-bottom:.7rem}
.card__title{margin:0;font-size:1.1rem}
.card__body{margin:0;font-size:14.5px;color:var(--mist)}
.card__meta{margin:.9rem 0 0;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--rock)}

/* 图片容器 */
.figure-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16 / 9;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:linear-gradient(160deg,#102A4A 0%,#0B1B33 55%,#123150 100%);
}
.figure-frame--wide{aspect-ratio:21 / 9}
.figure-frame--tall{aspect-ratio:4 / 5}
.figure-frame img{width:100%;height:100%;object-fit:cover}
.figure-frame__cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:.75rem 1rem;
  font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--mist);
  background:linear-gradient(0deg,rgba(7,18,34,.94),rgba(7,18,34,0));
}
.figure-frame--data::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(53,240,208,.13) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(0deg,rgba(240,178,74,.07) 0 1px,transparent 1px 46px);
}

/* 工具类 */
.visually-hidden{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
}
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
[data-reveal].is-visible{opacity:1;transform:none}

.scroll-progress{
  position:fixed;left:0;top:0;z-index:120;
  width:100%;height:3px;pointer-events:none;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--gold) 62%,var(--magenta));
}

/* ============================================================
   页脚
   ============================================================ */
.site-foot{
  margin-top:5rem;padding:3.4rem 0 2rem;
  border-top:1px solid var(--line-strong);
  background:linear-gradient(180deg,#0A1830 0%,#081528 100%);
}
.foot-top{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1.6fr);gap:2.6rem}
.foot-brand__mark{
  margin:0 0 .35rem;
  font-family:var(--sans);font-weight:800;text-transform:uppercase;
  font-size:2.2rem;line-height:1;letter-spacing:.2em;color:var(--cream);
}
.foot-brand__name{margin:0 0 .9rem;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.foot-brand__note{margin:0 0 .9rem;font-size:13.5px;line-height:1.85;color:var(--mist);max-width:44ch}
.foot-brand__note--dim{color:var(--rock);font-size:12.5px}

.foot-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.6rem}
.foot-col__title{
  margin:0 0 .95rem;font-family:var(--mono);font-weight:600;
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);
}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.foot-list li{list-style:none}
.foot-link{font-size:14px;color:var(--mist);border-bottom:1px solid transparent;padding-bottom:1px}
.foot-link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

.foot-contact{
  margin-top:2.4rem;padding:1.4rem 0;
  border-top:1px dashed var(--line-strong);border-bottom:1px dashed var(--line-strong);
  display:grid;gap:.6rem;
}
.foot-contact__row{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .9rem}
.foot-contact__key{min-width:5.4rem;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--rock)}
.foot-contact__val{font-size:14px;color:var(--cream)}
.copy-btn{
  appearance:none;cursor:pointer;
  background:transparent;border:1px solid var(--line-strong);color:var(--mist);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  padding:.25rem .75rem;border-radius:var(--r-pill);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.copy-btn:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(53,240,208,.08)}
.copy-status:empty{display:none}
.copy-status{margin:.2rem 0 0;font-size:11.5px;letter-spacing:.08em;color:var(--cyan)}

.foot-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.5rem 1.4rem;padding-top:1.3rem;
}
.foot-base__item{margin:0;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--rock)}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-top{grid-template-columns:1fr;gap:2rem}
}

@media (max-width:960px){
  .grid--aside{grid-template-columns:1fr}
}

@media (max-width:860px){
  .nav-bar{
    display:flex;align-items:center;justify-content:space-between;gap:1rem;
    padding:.75rem 0;border-top:1px solid var(--line);
  }
  .nav-toggle{display:inline-flex}

  .mast-brand{grid-template-columns:1fr;gap:.85rem;padding:1.7rem 0 1.25rem;text-align:center}
  .mast-brand__side{display:flex;flex-wrap:wrap;justify-content:center;gap:.4rem .9rem;font-size:10px}
  .mast-brand__side--end{text-align:center}
  .mast-lockup__sub{margin-top:.6rem}

  .mast-nav{
    max-height:0;overflow:hidden;
    border-top:1px solid transparent;
    transition:max-height .28s ease,border-color .28s ease;
  }
  .mast-nav[data-open]{max-height:9rem;border-top-color:var(--line)}
  .nav-list{
    flex-wrap:nowrap;justify-content:flex-start;
    overflow-x:auto;scrollbar-width:thin;
    padding:.85rem 0;gap:.5rem;
    -webkit-overflow-scrolling:touch;
  }
  .nav-link{padding:.55rem .95rem;font-size:12.5px}
}

@media (max-width:680px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .foot-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-base{justify-content:flex-start}
}

@media (max-width:460px){
  .mast-utility__inner{font-size:10px;letter-spacing:.12em}
  .foot-nav{grid-template-columns:1fr}
  .foot-contact__key{min-width:100%}
}

/* ============================================================
   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;transform:none}
  .card:hover{transform:none}
}