/* ==========================================================================
   半岛体育 · 共享样式 /assets/site.css
   暗场控制台体系：深海墨蓝底色 / 荧光青·熔岩橙状态色 / 6°与-3°斜切 / 等宽记分牌数字
   ========================================================================== */

:root{
  /* 色板 */
  --ink:#0A1622;
  --ink-2:#10233A;
  --panel:#1B3247;
  --cyan:#2BE0D2;
  --orange:#FF6A1F;
  --yellow:#FFD166;
  --green:#37D67A;
  --red:#FF4D5E;
  --white:#F2F7FA;
  --muted:#8FA3B4;

  --line:rgba(143,163,180,.22);
  --line-soft:rgba(143,163,180,.12);
  --line-cy:rgba(43,224,210,.36);
  --glow-cy:rgba(43,224,210,.14);
  --glow-or:rgba(255,106,31,.12);

  /* 尺寸 */
  --wrap:1240px;
  --gutter:clamp(16px,3vw,32px);
  --rail-h:24px;
  --header-h:72px;

  /* 字体 */
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-display:"PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;

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

/* ---------------------------------------------------------------- Reset */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  color:var(--white);
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(90deg, rgba(143,163,180,.05) 0 1px, transparent 1px 92px),
    radial-gradient(120% 55% at 84% -10%, var(--glow-cy), transparent 62%),
    radial-gradient(90% 50% at -10% 108%, var(--glow-or), transparent 60%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,pre{margin:0}
ul[class],ol[class]{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:var(--cyan);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--white)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
::selection{background:var(--cyan);color:var(--ink)}

#main-content{scroll-margin-top:calc(var(--header-h) + var(--rail-h) + 14px)}

.skip-link{
  position:fixed;top:0;left:0;z-index:200;
  transform:translateY(-130%);
  padding:12px 20px;
  background:var(--cyan);color:var(--ink);
  font-size:13px;font-weight:700;letter-spacing:.1em;
  transition:transform .18s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:none;color:var(--ink);outline-offset:-4px}

/* ------------------------------------------------------- 排版层级 */
.title-xl,.title-lg,.title-md,.title-sm{
  font-family:var(--font-display);
  font-weight:900;
  font-stretch:90%;
  letter-spacing:.02em;
  line-height:1.08;
  color:var(--white);
}
.title-xl{font-size:clamp(38px,6.2vw,82px);letter-spacing:.01em;line-height:1.02}
.title-lg{font-size:clamp(28px,4vw,52px)}
.title-md{font-size:clamp(22px,2.8vw,34px)}
.title-sm{font-size:clamp(18px,2vw,23px);line-height:1.25;letter-spacing:.04em}

.kicker{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--cyan);
}
.lede{font-size:clamp(15px,1.35vw,18px);color:var(--muted);max-width:34em}
.prose p{max-width:38em;margin-bottom:1.1em;color:rgba(242,247,250,.9)}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{font-family:var(--font-display);font-weight:900;letter-spacing:.03em;margin:1.6em 0 .6em}
.prose h2{font-size:clamp(20px,2.4vw,28px)}
.prose h3{font-size:clamp(17px,1.9vw,21px);color:var(--cyan)}
.prose ul{margin:0 0 1.1em;padding-left:18px;list-style:none;max-width:38em}
.prose ul[class]{padding-left:18px;list-style:none}
.prose li{position:relative;padding-left:14px;margin-bottom:.5em;color:rgba(242,247,250,.9)}
.prose li::before{content:"";position:absolute;left:0;top:.68em;width:5px;height:5px;background:var(--cyan)}

.num,.num-lg,.num-xl{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
  color:var(--white);
}
.num{font-size:1.15em;color:var(--cyan)}
.num-lg{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1}
.num-xl{font-size:clamp(48px,8vw,104px);font-weight:700;line-height:.92;letter-spacing:-.01em}

/* ------------------------------------------------------- 布局 */
.wrap{width:min(100% - 32px, var(--wrap));margin-inline:auto}
.page-shell{padding-top:calc(var(--header-h) + var(--rail-h))}
.page-shell--bleed{padding-top:0}
.section{padding:clamp(36px,5.5vw,84px) 0}
.section--tight{padding:clamp(24px,3.4vw,52px) 0}

.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.2vw,28px)}
.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}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}

.stack{display:flex;flex-direction:column;gap:clamp(12px,1.6vw,20px)}
.stack--row{flex-direction:row;flex-wrap:wrap;align-items:center}

/* ------------------------------------------------------- 面包屑 */
.crumbs{display:flex;flex-wrap:wrap;gap:10px;font-size:12px;letter-spacing:.08em;color:var(--muted)}
.crumbs li{display:inline-flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"/";font-family:var(--font-mono);color:var(--line-cy)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--cyan)}
.crumbs [aria-current="page"]{color:var(--white)}

/* ------------------------------------------------------- 按钮 */
.btn{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.82em 1.35em;
  font-size:13px;font-weight:700;letter-spacing:.14em;line-height:1;
  color:var(--white);
  background:rgba(27,50,71,.55);
  border:1px solid var(--line);
  border-radius:0;
  overflow:hidden;
  isolation:isolate;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,var(--cyan),#1fb9ad);
  clip-path:polygon(0 0,0 0,0 100%,0 100%);
  transition:clip-path .26s var(--ease);
}
.btn:hover::before,.btn:focus-visible::before{clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
.btn:hover,.btn:focus-visible{color:var(--ink);border-color:transparent}
.btn--primary{background:var(--orange);color:var(--ink);border-color:transparent}
.btn--primary::before{background:var(--cyan)}
.btn--primary:hover,.btn--primary:focus-visible{color:var(--ink)}
.btn--ghost{background:transparent;color:var(--cyan);border-color:var(--line-cy)}
.btn--ghost:hover,.btn--ghost:focus-visible{color:var(--ink)}
.btn--block{display:flex;width:100%}

/* ------------------------------------------------------- 标签 / 数据条 / 面板 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  font-size:11px;letter-spacing:.12em;line-height:1.7;
  color:var(--muted);
  background:rgba(27,50,71,.5);
  border:1px solid var(--line);
  white-space:nowrap;
}
.tag::before{content:"";width:5px;height:5px;background:currentColor}
.tag--ok{color:var(--orange);border-color:rgba(255,106,31,.48)}
.tag--rumor{color:var(--yellow);border-color:rgba(255,209,102,.44)}
.tag--expiry{color:var(--muted)}
.tag--loan{color:var(--cyan);border-color:var(--line-cy)}

.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.filter-btn{
  padding:.5em .95em;
  font-size:12px;letter-spacing:.1em;line-height:1.4;
  color:var(--muted);
  background:transparent;
  border:1px solid var(--line);
  transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease);
}
.filter-btn:hover{color:var(--white);border-color:var(--line-cy)}
.filter-btn[aria-pressed="true"],.filter-btn.is-active{background:var(--cyan);color:var(--ink);border-color:transparent}

.meter{display:flex;align-items:center;gap:12px}
.meter-track{position:relative;flex:1 1 auto;height:6px;background:var(--panel);overflow:hidden}
.meter-fill{
  position:absolute;inset:0 auto 0 0;
  width:var(--v,50%);
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  clip-path:polygon(0 0,calc(100% - 6px) 0,100% 100%,0 100%);
  transition:width .3s var(--ease);
}
.meter-value{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12px;color:var(--cyan);white-space:nowrap}
.meter--up .meter-fill{background:linear-gradient(90deg,var(--cyan),var(--green))}
.meter--up .meter-value{color:var(--green)}
.meter--down .meter-fill{background:linear-gradient(90deg,var(--orange),var(--red))}
.meter--down .meter-value{color:var(--red)}

.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  background:var(--ink-2);
  border:1px solid var(--line);
}
.panel--flat{background:rgba(16,35,58,.55)}
.panel--cut{clip-path:polygon(0 0,calc(100% - 42px) 0,100% 42px,100% 100%,0 100%)}

.cut-a{clip-path:polygon(0 0,100% 2.4%,100% 100%,0 97.6%)}
.cut-b{clip-path:polygon(0 2.4%,100% 0,100% 97.6%,0 100%)}
.band-cyan{background:linear-gradient(90deg,rgba(43,224,210,.9),rgba(43,224,210,.12));color:var(--ink)}
.band-orange{background:linear-gradient(90deg,rgba(255,106,31,.92),rgba(255,106,31,.14));color:var(--ink)}

.data-list{border-top:1px solid var(--line)}
.data-row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:14px;align-items:center;
  padding:12px 0;
  border-bottom:1px solid var(--line-soft);
}
.data-key{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--muted)}
.data-val{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--white)}
.data-note{font-size:12px;color:var(--muted)}

/* ------------------------------------------------------- 图片容器 / 旁注 */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--ink-2);
  border:1px solid var(--line);
}
.media img{width:100%;height:100%;object-fit:cover;filter:saturate(.86) contrast(1.06)}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(160deg, rgba(43,224,210,.16), transparent 46%),
    linear-gradient(0deg, rgba(10,22,34,.62), transparent 58%);
}
.media[data-empty]{background-image:repeating-linear-gradient(135deg, rgba(143,163,180,.14) 0 1px, transparent 1px 12px)}
.media[data-empty]::before{
  content:"IMAGE";
  position:absolute;left:14px;bottom:12px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.3em;color:var(--muted);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x4{aspect-ratio:3/4}
.media--1x1{aspect-ratio:1/1}
.media--wide{aspect-ratio:21/9}
.media-cap{margin-top:8px;font-size:12px;line-height:1.5;color:var(--muted)}

.annot{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.34em;
  color:var(--muted);
  text-transform:uppercase;
}
.annot--rot{writing-mode:horizontal-tb;transform:rotate(-90deg);transform-origin:left top}

/* ===================================================================== */
/* 页头：透明叠加 → 实色阅读态                                            */
/* ===================================================================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header[data-solid="true"]{
  background-color:rgba(10,22,34,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:rgba(43,224,210,.24);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.9);
}

.header-rail{
  display:flex;align-items:center;gap:10px;
  height:var(--rail-h);
  padding:0 max(16px, calc((100% - var(--wrap)) / 2));
  background:rgba(16,35,58,.72);
  border-bottom:1px solid var(--line-soft);
  transition:background-color .26s var(--ease);
}
.site-header[data-solid="true"] .header-rail{background:rgba(16,35,58,.4)}
.rail-mark{font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;color:var(--cyan)}
.rail-sep{width:1px;height:10px;background:var(--line-cy)}
.rail-text{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:var(--muted)}

.header-inner{
  width:min(100% - 32px, var(--wrap));
  margin-inline:auto;
  min-height:var(--header-h);
  display:flex;align-items:center;
  gap:clamp(14px,2.2vw,40px);
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--white)}
.brand:hover{color:var(--white)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:32px;
  background:var(--cyan);color:var(--ink);
  font-family:var(--font-display);font-size:13px;font-weight:900;letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% 72%,84% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-name{font-family:var(--font-display);font-size:17px;font-weight:900;letter-spacing:.14em}
.brand-tag{font-size:10px;letter-spacing:.2em;color:var(--muted)}
.brand--footer .brand-mark{width:56px;height:38px;font-size:15px}
.brand--footer .brand-name{font-size:20px}
.brand--footer .brand-tag{font-size:11px}

/* 导航 */
.site-nav{
  display:flex;align-items:center;
  gap:clamp(12px,1.8vw,28px);
  margin-left:auto;
}
.nav-list{display:flex;align-items:center;gap:clamp(4px,1.1vw,16px);counter-reset:nav}
.nav-link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:6px;
  padding:10px 3px 12px;
  color:var(--white);
  font-size:14px;font-weight:600;letter-spacing:.06em;
  white-space:nowrap;
}
.nav-link::before{
  counter-increment:nav;
  content:"0" counter(nav);
  font-family:var(--font-mono);font-size:9px;letter-spacing:.06em;
  color:var(--muted);
  transform:translateY(-5px);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:5px;height:2px;
  background:var(--cyan);
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--white)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange)}
.nav-link[aria-current="page"]::before{color:var(--cyan)}

.nav-aside{display:flex;align-items:center;gap:14px}
.util-link{
  font-size:12px;letter-spacing:.14em;color:var(--muted);
  padding-bottom:2px;
  border-bottom:1px dashed rgba(143,163,180,.42);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.util-link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.nav-cta{padding:.72em 1.15em;font-size:12px}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;
  align-items:center;gap:9px;
  padding:9px 13px;
  color:var(--cyan);
  border:1px solid var(--line-cy);
  font-size:12px;letter-spacing:.16em;
}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:100%;height:2px;background:currentColor;
  transition:transform .22s var(--ease),top .22s var(--ease);
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{top:8px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:4px;transform:rotate(-45deg)}

.header-progress{
  position:absolute;left:0;bottom:-1px;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:width .12s linear;
  pointer-events:none;
}

/* ===================================================================== */
/* 页脚                                                                  */
/* ===================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,130px);
  background:var(--ink-2);
  border-top:1px solid var(--line);
  color:var(--white);
}
.footer-cut{
  height:6px;
  background:linear-gradient(90deg,
    var(--cyan) 0 18%,
    rgba(43,224,210,.22) 18% 58%,
    var(--orange) 58% 71%,
    rgba(255,106,31,.2) 71% 100%);
  clip-path:polygon(0 0,100% 0,100% 100%,0 62%);
}
.footer-inner{
  width:min(100% - 32px, var(--wrap));
  margin-inline:auto;
  padding:clamp(36px,5vw,72px) 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .8fr .8fr .8fr 1.35fr;
  gap:clamp(20px,3vw,48px);
}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-line{font-size:13px;line-height:1.7;color:var(--muted);max-width:30em}
.footer-line--dim{color:rgba(143,163,180,.72)}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col-title{
  font-family:var(--font-mono);
  font-size:11px;font-weight:700;letter-spacing:.26em;
  color:var(--cyan);
  text-transform:uppercase;
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-link{font-size:13px;letter-spacing:.06em;color:rgba(242,247,250,.82)}
.footer-link:hover{color:var(--cyan)}
.footer-link[aria-current="page"]{color:var(--cyan)}
.footer-col--contact{gap:14px}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.contact-item{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:baseline}
.contact-key{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--muted)}
.contact-val{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:12.5px;color:var(--white);word-break:break-all}
.footer-cta{align-self:flex-start;padding:.7em 1.1em;font-size:12px}
.footer-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  margin-top:clamp(28px,4vw,52px);
  padding-top:18px;
  border-top:1px solid var(--line-soft);
  font-size:12px;letter-spacing:.06em;color:var(--muted);
}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:clamp(14px,2vw,28px);
  bottom:clamp(14px,2vw,28px);
  z-index:70;
  display:inline-flex;align-items:center;gap:7px;
  padding:11px 14px;
  background:var(--ink-2);
  border:1px solid var(--line-cy);
  color:var(--cyan);
  font-size:11px;letter-spacing:.16em;
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background-color .16s var(--ease);
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover,.to-top:focus-visible{background:var(--cyan);color:var(--ink)}
.to-top-arrow{font-family:var(--font-mono);font-size:13px;line-height:1}

/* ------------------------------------------------------- 动效 */
[data-reveal]{
  opacity:.42;
  filter:brightness(.7);
  transition:opacity .18s var(--ease),filter .18s var(--ease);
}
[data-reveal].is-in{opacity:1;filter:none}

/* ===================================================================== */
/* 响应式                                                                */
/* ===================================================================== */
@media (max-width:1279px){
  .util-link{display:none}
}
@media (max-width:1079px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-col--contact{grid-column:1 / -1}
}
@media (max-width:1023px){
  :root{--header-h:60px;--rail-h:3px}
  .header-rail{padding:0;gap:0}
  .rail-mark,.rail-sep,.rail-text{display:none}
  .header-rail{background:linear-gradient(90deg,var(--cyan),rgba(43,224,210,.16) 46%,var(--orange))}

  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;top:0;right:0;bottom:0;
    width:min(88vw,392px);
    margin-left:0;
    padding:calc(var(--header-h) + 26px) 26px 40px;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;
    background:var(--ink-2);
    border-left:1px solid var(--line-cy);
    box-shadow:-30px 0 60px -40px rgba(0,0,0,.95);
    overflow-y:auto;
    transform:translateX(103%);
    transition:transform .28s var(--ease);
    z-index:55;
  }
  .site-nav[data-open]{transform:none}
  .site-nav::before{
    content:"";position:fixed;inset:0;
    background:rgba(6,12,20,.68);
    opacity:0;pointer-events:none;
    transition:opacity .26s var(--ease);
    z-index:-1;
  }
  .site-nav[data-open]::before{opacity:1}

  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list li{border-bottom:1px solid var(--line-soft)}
  .nav-link{
    display:flex;align-items:center;justify-content:flex-start;gap:12px;
    padding:15px 0;
    font-size:15px;letter-spacing:.1em;
  }
  .nav-link::before{font-size:10px;transform:none;color:var(--muted)}
  .nav-link::after{left:0;right:auto;bottom:0;width:100%;height:2px}
  .nav-aside{flex-direction:column;align-items:stretch;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
  .util-link{display:inline-block;font-size:13px;padding:6px 0;border-bottom:0}
  .nav-cta{width:100%;padding:14px 16px;font-size:13px}

  .grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-3,.col-4,.col-5{grid-column:span 3}
  .col-7,.col-8,.col-9,.col-12{grid-column:span 6}
}
@media (max-width:639px){
  body{background-attachment:scroll}
  .container-pad{padding-inline:16px}
  .grid{grid-template-columns:minmax(0,1fr)}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 1}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-meta{flex-direction:column;align-items:flex-start;gap:8px}
  .nav-toggle-text{display:none}
  .nav-toggle{padding:10px 12px}
  .brand-tag{letter-spacing:.14em}
  .title-xl{font-size:clamp(32px,10vw,46px)}
}

/* ------------------------------------------------------- 降级与偏好 */
@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;filter:none}
  .to-top{transition:none}
}

@media print{
  .site-header,.to-top,.header-progress{display:none}
  body{background:#fff;color:#0A1622}
  .page-shell{padding-top:0}
}