/* ============================================================
   冠竞赛场 · 共享样式 /assets/site.css
   色彩节奏：深墨绿画布 → 战术线分区 → 荧光青交互 → 信号橙动作 → 暖金专题
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root{
  --bg-deep:#071C17;
  --bg-panel:#0C2A22;
  --line:#1E4A3C;
  --cyan:#3DF5D0;
  --orange:#FF6B2C;
  --gold:#E8B45A;
  --ink:#F3F6F0;
  --muted:#9CB3A8;
  --black:#030C09;
  --alert:#FF5468;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-narrow:"Oswald","Barlow Condensed","Noto Sans SC","PingFang SC",sans-serif;
  --font-body:"Noto Sans SC","Inter","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,monospace;

  --wrap:1240px;
  --shadow-hard:6px 6px 0 rgba(3,12,9,.62);
  --shadow-lift:8px 8px 0 rgba(3,12,9,.78);
  --radius:2px;
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:132px;
}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--cyan);color:var(--bg-deep);}

/* ---------- 3. 基础排版 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(50rem 34rem at 14% -10%, rgba(61,245,208,.09), transparent 68%),
    radial-gradient(42rem 30rem at 98% 2%, rgba(255,107,44,.08), transparent 68%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
@media (min-width:900px){ body{font-size:17px;} }

h1,h2,h3,h4{
  font-family:var(--font-serif);
  font-weight:800;
  line-height:1.26;
  letter-spacing:.02em;
  color:var(--ink);
}
strong,b{color:var(--ink);font-weight:700;}
small{font-size:.8em;}

/* ---------- 4. 焦点可见 ---------- */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:var(--radius);
}
.site-footer :focus-visible{outline-color:var(--gold);}

/* ---------- 5. 布局容器 ---------- */
.wrap{
  width:min(100% - 40px, var(--wrap));
  margin-inline:auto;
}
@media (max-width:560px){
  .wrap{width:min(100% - 28px, var(--wrap));}
}
.section{
  position:relative;
  padding-block:clamp(52px, 8vw, 104px);
}
.section--tight{padding-block:clamp(34px, 5vw, 62px);}
.section--panel{
  background:var(--bg-panel);
  border-block:1px solid var(--line);
}
.section--gold{
  background:
    linear-gradient(135deg, rgba(232,180,90,.16), rgba(12,42,34,.94) 58%, rgba(7,28,23,.98));
  border-block:1px solid rgba(232,180,90,.34);
}

/* 斜切分隔带：章节之间的动势 */
.bevel{
  height:clamp(30px, 4.4vw, 64px);
  background:
    linear-gradient(90deg,
      rgba(61,245,208,.85),
      rgba(61,245,208,0) 34%,
      rgba(255,107,44,0) 64%,
      rgba(255,107,44,.82));
  clip-path:polygon(0 72%, 100% 28%, 100% 46%, 0 90%);
  opacity:.72;
}

/* ---------- 6. 网格 ---------- */
.grid{display:grid;gap:clamp(18px, 3vw, 40px);}
.grid--12{grid-template-columns:repeat(12, minmax(0,1fr));}
.col-3{grid-column:span 3;}
.col-4{grid-column:span 4;}
.col-5{grid-column:span 5;}
.col-6{grid-column:span 6;}
.col-7{grid-column:span 7;}
.col-8{grid-column:span 8;}
@media (max-width:980px){
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 12;}
}

/* ---------- 7. 排版组件 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:2px;
  background:currentColor;
  flex:none;
}
.eyebrow--cyan{color:var(--cyan);}
.eyebrow--orange{color:var(--orange);}

.display{
  font-family:var(--font-serif);
  font-weight:800;
  font-size:clamp(30px, 4.6vw, 58px);
  line-height:1.18;
  letter-spacing:.02em;
  color:var(--ink);
}
.headline{
  font-family:var(--font-narrow);
  font-weight:800;
  font-size:clamp(23px, 3vw, 36px);
  line-height:1.2;
  letter-spacing:.05em;
  color:var(--ink);
}
.subhead{
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:clamp(17px, 2vw, 22px);
  line-height:1.35;
  letter-spacing:.06em;
  color:var(--ink);
}
.lead{
  font-size:clamp(16px, 1.5vw, 19px);
  line-height:1.85;
  color:var(--muted);
  max-width:60ch;
}
.prose{
  max-width:68ch;
  color:var(--muted);
}
.prose p + p{margin-top:1.15em;}
.prose strong{color:var(--ink);}
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}
.rule{
  height:1px;
  border:0;
  background:var(--line);
  margin-block:clamp(20px, 3vw, 34px);
}

/* ---------- 8. 按钮与动作 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:15px;
  letter-spacing:.14em;
  line-height:1.2;
  border:2px solid transparent;
  border-radius:var(--radius);
  transition:transform .18s ease, box-shadow .18s ease,
             background-color .18s ease, color .18s ease, border-color .18s ease;
}
.btn--primary{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--black);
  box-shadow:5px 5px 0 rgba(3,12,9,.82);
}
.btn--primary:hover{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--bg-deep);
  transform:translate(-2px,-2px);
  box-shadow:8px 8px 0 rgba(3,12,9,.82);
}
.btn--ghost{
  background:transparent;
  border-color:var(--cyan);
  color:var(--cyan);
}
.btn--ghost:hover{
  background:rgba(61,245,208,.12);
  transform:translate(-2px,-2px);
  box-shadow:6px 6px 0 rgba(3,12,9,.82);
}
.btn--quiet{
  background:rgba(12,42,34,.72);
  border-color:var(--line);
  color:var(--ink);
}
.btn--quiet:hover{
  border-color:var(--cyan);
  color:var(--cyan);
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding-bottom:3px;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:14px;
  letter-spacing:.12em;
  color:var(--cyan);
  border-bottom:2px solid rgba(61,245,208,.4);
}
.link-arrow::after{
  content:"→";
  transition:transform .18s ease;
}
.link-arrow:hover{border-bottom-color:var(--cyan);}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--muted);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb [aria-current="page"]{color:var(--ink);}

/* ---------- 10. 图片容器基础规则 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border:2px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-panel);
  box-shadow:var(--shadow-hard);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:radial-gradient(120% 100% at 50% 100%, rgba(3,12,9,.82), transparent 62%);
}
.media--16x9{aspect-ratio:16 / 9;}
.media--4x3{aspect-ratio:4 / 3;}
.media--1x1{aspect-ratio:1 / 1;}
.media--tall{aspect-ratio:3 / 4;}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}

/* ---------- 11. 面板 / 标签 / 筛选 / 标签页 ---------- */
.panel{
  padding:clamp(18px, 2.4vw, 30px);
  background:rgba(12,42,34,.72);
  border:2px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-hard);
}
.panel--flat{box-shadow:none;background:rgba(12,42,34,.5);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
  background:rgba(12,42,34,.7);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.tag--live{background:var(--cyan);border-color:var(--cyan);color:var(--bg-deep);}
.tag--alert{background:var(--orange);border-color:var(--orange);color:var(--bg-deep);}
.tag--gold{background:var(--gold);border-color:var(--gold);color:var(--bg-deep);}

.chip{
  padding:7px 14px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:color .18s ease, border-color .18s ease, background-color .18s ease;
}
.chip:hover{border-color:var(--cyan);color:var(--ink);}
.chip[aria-pressed="true"]{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--bg-deep);
  font-weight:700;
}

.tabs{
  display:flex;
  flex-wrap:wrap;
  gap:4px;
  border-bottom:1px solid var(--line);
}
.tab{
  padding:10px 18px;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:14px;
  letter-spacing:.1em;
  color:var(--muted);
  background:transparent;
  border:1px solid transparent;
  border-bottom:0;
  border-radius:var(--radius) var(--radius) 0 0;
  transition:color .18s ease, background-color .18s ease, border-color .18s ease;
}
.tab:hover{color:var(--cyan);}
.tab[aria-selected="true"]{
  color:var(--ink);
  background:var(--bg-panel);
  border-color:var(--line);
}

/* ---------- 12. 显现动效 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease, transform .5s ease;
}
[data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 13. 站点头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,28,23,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(3,12,9,.9);
  backdrop-filter:blur(10px);
}
.header-inner{
  width:min(100% - 40px, var(--wrap));
  margin-inline:auto;
}
@media (max-width:560px){
  .header-inner{width:min(100% - 28px, var(--wrap));}
}

/* 滚动进度条 */
.scroll-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg, var(--cyan), var(--orange) 60%, var(--gold));
}

/* 居中刊头 */
.masthead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:16px 24px;
  padding-block:18px 14px;
  transition:padding .25s ease;
}
.masthead-brand{
  grid-column:2;
  justify-self:center;
  display:block;
  text-align:center;
}
.masthead-name{
  display:block;
  font-family:var(--font-serif);
  font-weight:800;
  font-size:clamp(28px, 3.6vw, 46px);
  line-height:1.1;
  letter-spacing:.16em;
  text-indent:.16em;
  color:var(--ink);
  transition:font-size .25s ease, color .18s ease;
}
.masthead-brand:hover .masthead-name{color:var(--cyan);}
.masthead-tagline{
  display:block;
  max-height:2.2em;
  margin-top:8px;
  overflow:hidden;
  font-size:11px;
  letter-spacing:.2em;
  color:var(--muted);
  transition:opacity .25s ease, max-height .25s ease, margin .25s ease;
}
.masthead-status{
  grid-column:1;
  justify-self:start;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--muted);
  background:rgba(12,42,34,.72);
  border:1px solid var(--line);
  border-radius:var(--radius);
  white-space:nowrap;
}
.status-dot{
  width:7px;
  height:7px;
  flex:none;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(61,245,208,.16);
  animation:statusPulse 2.6s ease-in-out infinite;
}
@keyframes statusPulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.4;transform:scale(.78);}
}

/* 悬浮战术标签：帮助文档 */
.help-tab{
  grid-column:3;
  justify-self:end;
  display:inline-flex;
  align-items:center;
  padding:9px 16px;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:14px;
  letter-spacing:.12em;
  color:var(--bg-deep);
  background:var(--cyan);
  border:2px solid var(--cyan);
  border-radius:var(--radius);
  transform:skewX(-6deg);
  box-shadow:4px 4px 0 rgba(3,12,9,.9);
  transition:transform .18s ease, box-shadow .18s ease,
             background-color .18s ease, border-color .18s ease;
}
.help-tab > span{display:inline-block;transform:skewX(6deg);}
.help-tab:hover{
  background:var(--ink);
  border-color:var(--ink);
  transform:skewX(-6deg) translate(-2px,-2px);
  box-shadow:7px 7px 0 rgba(3,12,9,.9);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  width:100%;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:11px 0;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:14px;
  letter-spacing:.2em;
  color:var(--cyan);
  background:rgba(12,42,34,.7);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  transition:color .18s ease, background-color .18s ease;
}
.nav-toggle:hover{background:rgba(30,74,60,.5);}
.nav-toggle[aria-expanded="true"]{color:var(--orange);}
.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
}
.nav-toggle-bars span{
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){
  transform:translateY(5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){
  transform:translateY(-5px) rotate(-45deg);
}

/* 主导航 */
.site-nav{border-top:1px solid var(--line);}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:clamp(2px, 1.8vw, 22px);
}
.nav-link{
  position:relative;
  display:block;
  padding:14px 8px;
  font-size:15px;
  font-weight:500;
  letter-spacing:.1em;
  color:var(--muted);
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:8px;
  right:8px;
  bottom:9px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .22s ease, background-color .18s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--ink);font-weight:700;}
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--orange);
}

/* 头部滚动收窄 */
.site-header[data-shrink="true"] .masthead{padding-block:8px 6px;}
.site-header[data-shrink="true"] .masthead-name{font-size:23px;}
.site-header[data-shrink="true"] .masthead-tagline{
  opacity:0;
  max-height:0;
  margin-top:0;
}

/* 跳至主要内容 */
.skip-link{
  position:absolute;
  top:0;
  left:50%;
  z-index:120;
  padding:10px 22px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--bg-deep);
  background:var(--cyan);
  border-radius:0 0 var(--radius) var(--radius);
  transform:translate(-50%, -140%);
  transition:transform .18s ease;
}
.skip-link:focus{transform:translate(-50%, 0);}

/* ---------- 14. 头部响应式 ---------- */
@media (max-width:860px){
  .masthead{
    grid-template-columns:minmax(0,1fr) auto;
    gap:10px 14px;
    padding-block:14px 12px;
  }
  .masthead-brand{grid-column:1 / -1;grid-row:1;}
  .masthead-status{grid-column:1;grid-row:2;justify-self:start;font-size:10px;}
  .help-tab{grid-column:2;grid-row:2;justify-self:end;padding:7px 12px;font-size:12px;}
  .masthead-name{font-size:clamp(26px, 7vw, 34px);}
  .site-header[data-shrink="true"] .masthead-name{font-size:20px;}

  .nav-toggle{display:flex;}
  .site-nav{
    border-top:0;
    max-height:0;
    overflow:hidden;
    transition:max-height .3s ease;
  }
  .site-nav[data-open="true"]{max-height:32rem;}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:4px 0 14px;
  }
  .nav-link{
    padding:14px 4px;
    border-bottom:1px solid rgba(30,74,60,.65);
  }
  .nav-link::after{
    left:4px;
    right:auto;
    width:26px;
    bottom:11px;
  }
}
@media (max-width:400px){
  .masthead-status{font-size:9px;letter-spacing:0;}
}

/* ---------- 15. 站点页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--bg-panel);
  border-top:2px solid var(--line);
  color:var(--muted);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg, var(--cyan), var(--orange) 55%, var(--gold));
}
.footer-inner{
  width:min(100% - 40px, var(--wrap));
  margin-inline:auto;
  padding-block:clamp(40px, 5vw, 64px) clamp(22px, 3vw, 32px);
}
@media (max-width:560px){
  .footer-inner{width:min(100% - 28px, var(--wrap));}
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);
  gap:clamp(28px, 4vw, 64px);
}
.footer-logo{
  font-family:var(--font-serif);
  font-weight:800;
  font-size:26px;
  letter-spacing:.16em;
  color:var(--ink);
}
.footer-line{
  margin-top:10px;
  font-size:14px;
  color:var(--muted);
}
.footer-meta{
  margin-top:14px;
  padding-top:12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--gold);
  border-top:1px solid var(--line);
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:clamp(18px, 3vw, 40px);
}
.footer-col-title{
  margin-bottom:14px;
  padding-bottom:10px;
  font-family:var(--font-narrow);
  font-weight:700;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.footer-col a{
  display:inline-block;
  padding:5px 0;
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease, transform .18s ease;
}
.footer-col a:hover{color:var(--cyan);transform:translateX(2px);}
.footer-legal{
  display:grid;
  gap:12px;
  margin-top:clamp(30px, 4vw, 48px);
  padding-top:20px;
  border-top:1px solid var(--line);
}
.footer-legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  font-size:13px;
}
.footer-legal-links a{
  color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .18s ease, border-color .18s ease;
}
.footer-legal-links a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.footer-contact{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.02em;
  line-height:1.9;
  color:var(--muted);
  word-break:break-word;
}
.footer-note{
  max-width:74ch;
  font-size:12.5px;
  line-height:1.9;
  color:rgba(156,179,168,.82);
}
.footer-copy{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 18px;
  padding-top:14px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--muted);
  border-top:1px solid rgba(30,74,60,.6);
}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:70;
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  font-size:16px;
  color:var(--cyan);
  background:var(--bg-panel);
  border:2px solid var(--line);
  border-radius:var(--radius);
  box-shadow:4px 4px 0 rgba(3,12,9,.8);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease, transform .2s ease, visibility .2s ease,
             border-color .18s ease, color .18s ease;
}
.to-top[data-visible="true"]{
  opacity:1;
  visibility:visible;
  transform:none;
}
.to-top:hover{border-color:var(--cyan);color:var(--ink);}

/* ---------- 16. 页脚响应式 ---------- */
@media (max-width:820px){
  .footer-top{grid-template-columns:1fr;}
  .footer-meta{border-top:0;padding-top:0;}
}
@media (max-width:640px){
  .footer-nav{grid-template-columns:repeat(2, minmax(0,1fr));}
  .footer-copy{justify-content:flex-start;}
  .to-top{right:14px;bottom:14px;width:40px;height:40px;}
}

/* ---------- 17. 尊重减少动效 ---------- */
@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;}
  .status-dot{animation:none;opacity:1;}
  .help-tab:hover,
  .btn:hover,
  .footer-col a:hover{transform:none;}
  .link-arrow:hover::after{transform:none;}
}

/* ---------- 18. 打印基础 ---------- */
@media print{
  .site-header,.site-footer,.to-top,.scroll-progress{display:none !important;}
  body{background:#fff;color:#000;}
}