/* ============================================================
   半岛体育 · 共享外壳样式 /assets/site.css
   深墨绿场域 + 暖纸内容层 + 熔金坐标点 + 冰蓝数据线
   ============================================================ */

:root{
  --ink-900:#0C2621;
  --ink-850:#10302A;
  --ink-800:#14382F;
  --moss-600:#2C5749;
  --gold-500:#D9A62E;
  --gold-300:#F3CC6B;
  --ice-400:#7FD4E8;
  --rust-500:#94302C;
  --paper-100:#F5F0E4;
  --paper-200:#E2DAC7;
  --char-900:#121A17;
  --mist-400:#8FA79C;

  --line-dark:rgba(44,87,73,.55);
  --line-dark-soft:rgba(44,87,73,.28);
  --line-light:rgba(18,26,23,.14);
  --hair-light:rgba(245,240,228,.18);

  --wrap:1120px;
  --wrap-wide:1280px;
  --gutter:clamp(1.1rem,4vw,2.5rem);
  --header-h:114px;
  --header-h-scrolled:66px;

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

  --ease:cubic-bezier(.2,.7,.3,1);
  --radius:3px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;}
[hidden]{display:none !important;}

/* ---------- 中文排版基准 ---------- */
body{
  font-family:var(--font-body);
  font-size:clamp(16px,.45vw + 15px,17px);
  line-height:1.85;
  color:var(--char-900);
  background:var(--paper-100);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.16;}
h1{font-size:clamp(2.1rem,4.4vw,3.6rem);}
h2{font-size:clamp(1.6rem,3vw,2.25rem);}
h3{font-size:clamp(1.15rem,1.8vw,1.4rem);line-height:1.35;}
p{max-width:68ch;}
.mono{font-family:var(--font-mono);font-variant-ligatures:none;font-feature-settings:"tnum" 1;}

::selection{background:var(--gold-500);color:var(--ink-900);}
:focus-visible{outline:2px solid var(--ice-400);outline-offset:3px;border-radius:2px;}
#main-content:focus{outline:none;}

/* ---------- 容器与栅格 ---------- */
.container{width:min(100% - var(--gutter)*2,var(--wrap));margin-inline:auto;}
.container--wide{width:min(100% - var(--gutter)*2,var(--wrap-wide));margin-inline:auto;}
.grid{display:grid;gap:clamp(1rem,2.2vw,1.75rem);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr));}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(1.5rem,4vw,4rem);align-items:center;}
.stack{display:flex;flex-direction:column;gap:clamp(.75rem,1.6vw,1.25rem);}
.cluster{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center;}

@media (max-width:960px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;}
}
@media (max-width:600px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr;}
}

/* ---------- 区块与网格叠层 ---------- */
.section{position:relative;padding:clamp(3.5rem,7vw,6.5rem) 0;}
.section--ink{background:var(--ink-900);color:var(--paper-100);}
.section--band{background:var(--ink-800);color:var(--paper-100);}
.section--paper{background:var(--paper-100);color:var(--char-900);}
.section--ink p,.section--band p{color:rgba(245,240,228,.82);}

.grid-veil{position:relative;}
.grid-veil::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(to right,rgba(44,87,73,.5) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(44,87,73,.5) 1px,transparent 1px);
  background-size:120px 120px;}
.grid-veil::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(to right,rgba(44,87,73,.26) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(44,87,73,.26) 1px,transparent 1px);
  background-size:40px 40px;}
.grid-veil > *{position:relative;z-index:1;}

.seam{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--line-dark),transparent);}
.page-offset{padding-top:calc(var(--header-h) + clamp(1rem,3vw,2rem));}

/* ---------- 索引标签与档案标签 ---------- */
.mono-label{
  display:inline-flex;align-items:center;gap:.65rem;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--gold-300);text-transform:uppercase;
}
.mono-label::before{content:"";width:24px;height:1px;background:currentColor;opacity:.75;}
.mono-label--ink{color:var(--rust-500);}

.archive-tag{
  display:inline-flex;align-items:center;gap:.5em;
  background:var(--rust-500);color:var(--paper-100);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  padding:.3rem .62rem;border-radius:2px;line-height:1.4;white-space:nowrap;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.82rem 1.4rem;border:1px solid transparent;border-radius:var(--radius);
  font-size:15px;font-weight:700;letter-spacing:.02em;line-height:1.2;
  cursor:pointer;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn--sm{padding:.58rem 1rem;font-size:13.5px;}
.btn--gold{background:var(--gold-500);color:var(--ink-900);}
.btn--gold:hover{background:var(--gold-300);transform:translateY(-2px);}
.btn--ghost{background:transparent;color:var(--paper-100);border-color:var(--hair-light);}
.btn--ghost:hover{border-color:var(--ice-400);color:var(--ice-400);transform:translateY(-2px);}
.btn--outline{background:transparent;color:var(--ink-900);border-color:var(--moss-600);}
.btn--outline:hover{background:var(--ink-900);color:var(--paper-100);}
.btn--block{width:100%;}

/* ---------- 卡片与玻璃层 ---------- */
.card{
  position:relative;background:var(--paper-100);color:var(--char-900);
  border:1px solid var(--paper-200);border-radius:var(--radius);
  padding:clamp(1.15rem,2.2vw,1.6rem);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--gold-500);box-shadow:0 14px 32px rgba(12,38,33,.14);}
.card--ink{background:var(--ink-800);color:var(--paper-100);border-color:var(--moss-600);}
.card--ink:hover{border-color:var(--gold-500);box-shadow:0 16px 36px rgba(0,0,0,.35);}
.card--glass{background:rgba(245,240,228,.06);border-color:var(--hair-light);color:var(--paper-100);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.card--glass:hover{border-color:var(--ice-400);}
.glass{
  background:rgba(245,240,228,.055);border:1px solid var(--hair-light);border-radius:var(--radius);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}

/* ---------- 正文 ---------- */
.prose{max-width:68ch;}
.prose > * + *{margin-top:1.05em;}
.prose h2{margin-top:2.1em;font-size:clamp(1.5rem,2.6vw,2rem);}
.prose h3{margin-top:1.7em;}
.prose ul,.prose ol{display:flex;flex-direction:column;gap:.55em;padding-left:1.15rem;}
.prose ul{list-style:none;}
.prose ul li{position:relative;padding-left:.95rem;}
.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:2px;background:var(--gold-500);}
.prose ol{list-style:decimal;}
.prose a{border-bottom:1px solid var(--ice-400);}
.prose strong{font-weight:700;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  color:var(--mist-400);
}
.breadcrumb a{border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.breadcrumb a:hover{color:var(--gold-300);border-color:currentColor;}
.breadcrumb__sep{opacity:.5;}
.breadcrumb [aria-current="page"]{color:var(--paper-100);}
.breadcrumb--paper{color:#5C6B62;}
.breadcrumb--paper [aria-current="page"]{color:var(--char-900);}
.breadcrumb--paper a:hover{color:var(--rust-500);}

/* ---------- 筛选与标签 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:.55rem;}
.chip{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.42rem .92rem;border:1px solid var(--moss-600);border-radius:999px;
  background:transparent;color:var(--mist-400);cursor:pointer;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{color:var(--gold-300);border-color:var(--gold-500);}
.chip[aria-pressed="true"]{color:var(--gold-300);border-color:var(--ice-400);background:rgba(127,212,232,.1);}
.chip--light{color:#4C5B53;border-color:#B9B09B;}
.chip--light:hover{color:var(--rust-500);border-color:var(--rust-500);}
.chip--light[aria-pressed="true"]{color:var(--ink-900);border-color:var(--ice-400);background:rgba(127,212,232,.22);}

/* ---------- 折叠面板 ---------- */
.accordion{border-top:1px solid var(--line-dark);}
.acc-item{border-bottom:1px solid var(--line-dark);}
.acc-trigger{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:1.2rem;
  padding:1.15rem .25rem;text-align:left;cursor:pointer;
  font-weight:700;font-size:1.02rem;line-height:1.5;
  transition:color .2s var(--ease);
}
.acc-trigger::after{
  content:"";flex:0 0 auto;width:11px;height:11px;margin-top:.45rem;
  border-right:2px solid var(--gold-500);border-bottom:2px solid var(--gold-500);
  transform:rotate(45deg);transition:transform .28s var(--ease);
}
.acc-trigger:hover{color:var(--gold-300);}
.acc-item[data-open="true"] .acc-trigger{color:var(--gold-300);}
.acc-item[data-open="true"] .acc-trigger::after{transform:rotate(-135deg);}
.acc-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .34s var(--ease);}
.acc-panel > div{overflow:hidden;}
.acc-panel p{padding:0 .25rem 1.25rem;font-size:.97rem;}
.acc-item[data-open="true"] .acc-panel{grid-template-rows:1fr;}

/* ---------- 标签页 ---------- */
.tabs__list{display:flex;flex-wrap:wrap;gap:.35rem;border-bottom:1px solid var(--line-dark);}
.tabs__tab{
  padding:.7rem 1.05rem;cursor:pointer;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.1em;
  color:var(--mist-400);border-bottom:2px solid transparent;margin-bottom:-1px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.tabs__tab:hover{color:var(--gold-300);}
.tabs__tab[aria-selected="true"]{color:var(--ice-400);border-bottom-color:var(--ice-400);}
.tabs__panel{padding-top:clamp(1.2rem,2.4vw,2rem);}

/* ---------- 数据表 ---------- */
.data-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;}
.data-table th,.data-table td{padding:.72rem .65rem;text-align:left;border-bottom:1px solid var(--line-dark-soft);}
.data-table th{color:var(--gold-300);font-weight:500;letter-spacing:.1em;font-size:11.5px;text-transform:uppercase;}
.data-table tbody tr:hover{background:rgba(127,212,232,.07);}

/* ---------- 图片容器基类 ---------- */
.media-frame{
  position:relative;overflow:hidden;border-radius:var(--radius);
  background:var(--ink-800);aspect-ratio:16/9;
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:4/5;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.media-frame--empty{
  background-image:repeating-linear-gradient(135deg,rgba(44,87,73,.55) 0 1px,transparent 1px 12px);
  border:1px solid var(--line-dark);
}
.media-frame__caption{
  position:absolute;left:1rem;right:1rem;bottom:.9rem;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:rgba(245,240,228,.86);
}
.media-frame::after{content:"";position:absolute;inset:auto 0 0 0;height:46%;
  background:linear-gradient(180deg,rgba(12,38,33,0),rgba(12,38,33,.86));pointer-events:none;}

/* ============================================================
   头部
   ============================================================ */
.skip-link{
  position:fixed;left:1rem;top:-4.5rem;z-index:200;
  background:var(--gold-500);color:var(--ink-900);
  padding:.7rem 1.15rem;font-weight:700;border-radius:var(--radius);
  transition:top .22s var(--ease);
}
.skip-link:focus{top:.8rem;}

.site-header{
  position:fixed;inset-inline:0;top:0;z-index:100;
  color:var(--paper-100);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(12,38,33,.97);
  border-bottom-color:var(--line-dark);
  box-shadow:0 14px 36px rgba(0,0,0,.38);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
body.is-nav-open .site-header{background:var(--ink-900);}
body.is-nav-open{overflow:hidden;}

.site-header__utility{
  overflow:hidden;max-height:44px;
  border-bottom:1px solid var(--line-dark-soft);
  transition:max-height .28s var(--ease),opacity .28s var(--ease),border-color .28s var(--ease);
}
.site-header[data-scrolled="true"] .site-header__utility{max-height:0;opacity:0;border-bottom-color:transparent;}
.site-header__utility-row{
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
  min-height:38px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--mist-400);
}
.utility-strip{display:flex;flex-wrap:wrap;gap:1.4rem;}
.utility-strip__link{border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.utility-strip__link:hover{color:var(--ice-400);border-color:currentColor;}
.utility-strip__meta{display:flex;gap:.6rem;white-space:nowrap;}
.utility-strip__k{color:rgba(143,167,156,.7);}

.site-header__bar{
  display:flex;align-items:center;gap:clamp(.8rem,2vw,1.8rem);
  min-height:74px;
  transition:min-height .24s var(--ease);
}
.site-header[data-scrolled="true"] .site-header__bar{min-height:64px;}

.brand{display:inline-flex;align-items:center;gap:.75rem;flex:0 0 auto;}
.brand__mark{
  position:relative;width:30px;height:30px;flex:0 0 auto;
  background:radial-gradient(circle at 50% 50%,var(--gold-500) 0 3.2px,transparent 3.6px);
}
.brand__mark::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--gold-500);opacity:.75;}
.brand__mark::after{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:var(--gold-500);opacity:.75;}
.brand__text{display:flex;flex-direction:column;gap:.1rem;}
.brand__name{font-size:20px;font-weight:900;letter-spacing:.02em;line-height:1.25;}
.brand__coord{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  color:var(--mist-400);white-space:nowrap;
}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;margin-left:auto;
  padding:.5rem .25rem;cursor:pointer;color:var(--paper-100);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;
}
.nav-toggle__bars{display:flex;flex-direction:column;justify-content:center;gap:5px;width:24px;}
.nav-toggle__bars i{display:block;height:2px;width:100%;background:var(--gold-500);transition:transform .26s var(--ease),opacity .26s var(--ease);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 桌面导航 */
@media (min-width:1080px){
  .site-nav{display:flex;align-items:center;gap:clamp(.8rem,2vw,2rem);margin-left:auto;}
  .site-nav__list{display:flex;align-items:center;gap:clamp(.5rem,1.4vw,1.3rem);}
  .site-nav__link{
    position:relative;display:inline-block;padding:.5rem .1rem;
    font-size:14.5px;font-weight:500;letter-spacing:.02em;
    color:rgba(245,240,228,.85);white-space:nowrap;
    transition:color .2s var(--ease);
  }
  .site-nav__link::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
    background:var(--gold-500);transform:scaleX(0);transform-origin:0 50%;
    transition:transform .28s var(--ease);
  }
  .site-nav__link:hover{color:var(--paper-100);}
  .site-nav__link:hover::after{transform:scaleX(1);}
  .site-nav__link[aria-current="page"]{color:var(--gold-300);}
  .site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--ice-400);}
  .site-nav__actions{
    display:flex;gap:.55rem;align-items:center;
    margin-left:clamp(.4rem,1.4vw,1.2rem);padding-left:clamp(.5rem,1.4vw,1.2rem);
    border-left:1px solid var(--line-dark);
  }
}

/* 移动抽屉 */
@media (max-width:1079px){
  :root{--header-h:100px;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:fixed;top:0;right:0;z-index:96;
    width:min(88vw,380px);height:100dvh;
    display:flex;flex-direction:column;gap:2rem;
    padding:5.75rem var(--gutter) 2.5rem;
    background:var(--ink-900);
    border-left:1px solid var(--moss-600);
    box-shadow:-26px 0 60px rgba(0,0,0,.5);
    overflow-y:auto;
    transform:translateX(101%);
    transition:transform .34s var(--ease);
  }
  .site-nav[data-open="true"]{transform:translateX(0);}
  .site-nav__list{display:flex;flex-direction:column;}
  .site-nav__item{border-bottom:1px solid var(--line-dark-soft);}
  .site-nav__link{display:block;padding:.9rem .15rem;font-size:17px;font-weight:500;transition:color .2s var(--ease),padding-left .2s var(--ease);}
  .site-nav__link:hover,.site-nav__link[aria-current="page"]{color:var(--gold-300);padding-left:.6rem;}
  .site-nav__actions{display:flex;flex-direction:column;gap:.7rem;}
  .site-nav__actions .btn{width:100%;}
  .site-header__bar{position:relative;z-index:98;}
}

@media (max-width:900px){
  .brand__coord{font-size:9.5px;letter-spacing:.1em;}
}
@media (max-width:640px){
  :root{--header-h:74px;}
  .site-header__utility{display:none;}
  .site-header__bar{min-height:64px;}
  .site-header[data-scrolled="true"] .site-header__bar{min-height:64px;}
  .brand__mark{width:24px;height:24px;}
  .brand__name{font-size:17px;}
  .brand__coord{display:none;}
}
@media (max-width:380px){
  .nav-toggle__label{display:none;}
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:var(--paper-100);
  padding:clamp(3rem,6vw,4.75rem) 0 1.5rem;
}
.site-footer__veil{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(44,87,73,.42) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(44,87,73,.42) 1px,transparent 1px);
  background-size:120px 120px;
  opacity:.5;
}
.site-footer__grid{
  position:relative;
  display:grid;
  grid-template-columns:1.5fr .85fr .85fr .85fr 1.45fr;
  gap:clamp(1.5rem,3vw,2.6rem);
}
.footer-brand{display:flex;flex-direction:column;gap:.55rem;}
.footer-brand__mark{
  position:relative;width:34px;height:34px;margin-bottom:.35rem;
  background:radial-gradient(circle at 50% 50%,var(--gold-500) 0 3.4px,transparent 3.8px);
}
.footer-brand__mark::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--gold-500);opacity:.75;}
.footer-brand__mark::after{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:var(--gold-500);opacity:.75;}
.footer-brand__name{font-size:19px;font-weight:900;letter-spacing:.02em;line-height:1.3;}
.footer-brand__coord{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--mist-400);}
.footer-brand__line{font-size:13.5px;line-height:1.75;color:rgba(245,240,228,.7);max-width:26ch;}

.footer-col__title{
  font-family:var(--font-mono);font-size:11.5px;font-weight:500;
  letter-spacing:.16em;color:var(--gold-300);text-transform:uppercase;
  margin-bottom:1rem;display:flex;align-items:center;gap:.6rem;
}
.footer-col__title::before{content:"";width:14px;height:1px;background:var(--gold-500);flex:0 0 auto;}
.footer-col__list{display:flex;flex-direction:column;gap:.55rem;}
.footer-col__link{
  font-size:14.5px;color:rgba(245,240,228,.78);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-col__link:hover{color:var(--ice-400);border-color:currentColor;}

.footer-contact__list{display:flex;flex-direction:column;gap:.85rem;}
.footer-contact__item{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .7rem;}
.footer-contact__label{
  flex:0 0 auto;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  color:var(--mist-400);min-width:4.6em;
}
.footer-contact__value{font-size:14px;color:var(--paper-100);word-break:break-all;}
.footer-contact__item--plain .footer-contact__value{font-size:13.5px;line-height:1.7;color:rgba(245,240,228,.78);}
.copy-btn{
  padding:.24rem .58rem;border:1px solid var(--moss-600);border-radius:2px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--mist-400);
  cursor:pointer;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.copy-btn:hover{color:var(--ice-400);border-color:var(--ice-400);}
.copy-btn[data-copied="true"]{color:var(--gold-300);border-color:var(--gold-500);}
.footer-contact__note{margin-top:1rem;font-size:12.5px;line-height:1.8;color:rgba(143,167,156,.92);max-width:34ch;}

.site-footer__bottom{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem 1.5rem;
  margin-top:clamp(2.25rem,4vw,3.25rem);padding-top:1.4rem;
  border-top:1px solid var(--line-dark);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  color:var(--mist-400);
}
.footer-icp{color:var(--mist-400);}
.footer-copy{color:rgba(143,167,156,.85);}

.to-top{
  position:fixed;right:clamp(.9rem,3vw,1.75rem);bottom:clamp(.9rem,3vw,1.75rem);z-index:80;
  width:46px;height:46px;display:grid;place-items:center;
  border:1px solid var(--moss-600);border-radius:50%;
  background:rgba(12,38,33,.92);color:var(--gold-300);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),border-color .26s var(--ease);
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none;}
.to-top:hover{border-color:var(--gold-500);}
.to-top__arrow{
  width:10px;height:10px;margin-top:4px;
  border-left:2px solid currentColor;border-top:2px solid currentColor;
  transform:rotate(45deg);
}

@media (max-width:1024px){
  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-contact{grid-column:1 / -1;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:560px){
  .site-footer__grid{grid-template-columns:1fr;gap:2rem;}
  .site-footer__bottom{flex-direction:column;align-items:flex-start;}
}

/* ============================================================
   滚动进度条（由共享 JS 注入）
   ============================================================ */
.scroll-progress{
  position:fixed;left:0;top:0;z-index:150;
  width:100%;height:2px;pointer-events:none;
  background:linear-gradient(90deg,var(--gold-500),var(--ice-400));
  transform:scaleX(0);transform-origin:0 50%;
}

/* ============================================================
   入场显现
   ============================================================ */
.has-js .reveal{opacity:0;transform:translateY(12px);
  transition:opacity .38s var(--ease),transform .38s var(--ease);}
.has-js .reveal.is-in{opacity:1;transform:none;}

/* ============================================================
   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;
  }
  .has-js .reveal{opacity:1;transform:none;}
  .card:hover,.btn:hover{transform:none;}
  .to-top{transform:none;}
}