/* 678体育赛 · /assets/site.css —— 共享外壳与基础组件 */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg,video{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0}

:root{
  --navy:#101C33; --navy-2:#1B2C4A; --navy-3:#0C1729;
  --gold:#D9A441; --gold-soft:#F0CE86; --gold-deep:#C08A2A;
  --ember:#E4572E; --pitch:#3E8E5A; --stone:#5C5A55;
  --cream:#F4EFE6; --clay:#A9583A; --lamp:#FFFFFF;
  --ink:#101C33; --ink-70:rgba(16,28,51,.72); --ink-50:rgba(16,28,51,.5);
  --light-90:rgba(244,239,230,.9); --light-70:rgba(244,239,230,.7); --light-45:rgba(244,239,230,.45);
  --hair:rgba(92,90,85,.22); --hair-light:rgba(240,206,134,.18);
  --font-display:"Arial Narrow","Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-data:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --r-pill:999px; --r-lg:26px; --r-md:16px; --r-sm:10px;
  --shell:1180px; --pad:clamp(16px,4vw,40px);
  --shadow-soft:0 24px 60px -34px rgba(16,28,51,.55);
}

/* ============ 基础排版 ============ */
body{
  background:var(--cream); color:var(--ink);
  font-family:var(--font-body); font-size:17px; line-height:1.75; letter-spacing:.01em;
  -webkit-font-smoothing:antialiased; min-height:100vh; overflow-x:hidden;
}
body::after{
  content:""; position:fixed; inset:0; z-index:1; pointer-events:none; opacity:.3; mix-blend-mode:multiply;
  background-image:
    repeating-linear-gradient(0deg,rgba(92,90,85,.06) 0 1px,transparent 1px 4px),
    repeating-linear-gradient(90deg,rgba(16,28,51,.05) 0 1px,transparent 1px 6px);
}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}
#main-content{scroll-margin-top:104px}

.t-display{font-family:var(--font-display);font-weight:800;font-stretch:87%;letter-spacing:-.02em;line-height:1.02}
.t-editorial{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;line-height:1.35}
.t-body{font-family:var(--font-body);font-size:17px;line-height:1.75}
.t-data{font-family:var(--font-data);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.fs-xl{font-size:clamp(38px,5.6vw,56px)}
.fs-lg{font-size:clamp(30px,3.6vw,40px)}
.fs-md{font-size:clamp(22px,2.4vw,28px)}
.fs-sm{font-size:15px}
.t-lead{font-size:clamp(18px,1.4vw,21px);line-height:1.7;color:var(--ink-70);max-width:32em}
.eyebrow{font-family:var(--font-data);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--clay)}
.on-dark{color:var(--cream)}
.text-gold{color:var(--gold)}
.text-ember{color:var(--ember)}
.text-stone{color:var(--stone)}

/* ============ 布局 ============ */
.wrap{width:min(var(--shell),calc(100% - 2*var(--pad)));margin-inline:auto}
.wrap--narrow{width:min(760px,calc(100% - 2*var(--pad)));margin-inline:auto}
.section{position:relative;padding:clamp(56px,8vw,104px) 0}
.section--cream{background:var(--cream)}
.section--paper{background:linear-gradient(180deg,#FFFDF8 0%,var(--cream) 100%)}
.section--dark{background:radial-gradient(130% 120% at 8% 0%,var(--navy-2) 0%,var(--navy) 58%,var(--navy-3) 100%);color:var(--cream)}
.section-head{display:grid;gap:10px;margin-bottom:clamp(24px,4vw,44px)}
.section-index{font-family:var(--font-data);font-size:12px;letter-spacing:.24em;color:var(--gold)}
.section-title{font-family:var(--font-display);font-weight:800;font-stretch:87%;letter-spacing:-.02em;line-height:1.05;font-size:clamp(30px,3.6vw,40px)}
.section-note{font-size:15px;color:var(--ink-70);max-width:32em}
.section--dark .section-note{color:var(--light-70)}
.light-band{height:2px;background:linear-gradient(90deg,transparent 0,var(--gold) 20%,var(--ember) 50%,var(--gold-soft) 78%,transparent 100%);opacity:.75}
.slant-down{clip-path:polygon(0 3vw,100% 0,100% 100%,0 100%)}
.slant-up{clip-path:polygon(0 0,100% 3vw,100% 100%,0 100%)}
.grain{position:relative}
.grain::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;background-image:repeating-linear-gradient(0deg,rgba(92,90,85,.06) 0 1px,transparent 1px 4px),repeating-linear-gradient(90deg,rgba(92,90,85,.05) 0 1px,transparent 1px 5px)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.span-4{grid-column:span 4}.span-5{grid-column:span 5}.span-6{grid-column:span 6}
.span-7{grid-column:span 7}.span-8{grid-column:span 8}.span-12{grid-column:span 12}

/* ============ 正文容器 ============ */
.prose{max-width:720px}
.prose p{max-width:32em;margin-bottom:1.15em;line-height:1.75}
.prose h2{font-family:var(--font-serif);font-weight:600;font-size:clamp(22px,2.4vw,28px);margin:2.1em 0 .7em;line-height:1.35}
.prose h3{font-family:var(--font-serif);font-weight:600;font-size:20px;margin:1.7em 0 .6em}
.prose ul{margin:0 0 1.3em;padding-left:1.2em;list-style:disc}
.prose li{margin-bottom:.5em;max-width:32em}
.prose blockquote{border-left:3px solid var(--gold);padding-left:16px;font-family:var(--font-serif);color:var(--ink-70);margin:1.6em 0}
.prose a{color:var(--clay);border-bottom:1px solid rgba(169,88,58,.4)}
.prose a:hover{color:var(--gold-deep);border-color:var(--gold)}
.prose code{font-family:var(--font-data);font-size:.92em;background:rgba(92,90,85,.1);padding:2px 6px;border-radius:6px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;letter-spacing:.02em;border:1px solid transparent;cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease}
.btn--gold{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:var(--navy);box-shadow:0 18px 34px -22px rgba(217,164,65,.9)}
.btn--gold:hover{background:linear-gradient(135deg,var(--gold-soft),var(--gold))}
.btn--ghost{border-color:var(--hair);color:var(--ink)}
.btn--ghost:hover{border-color:var(--gold);color:var(--clay)}
.btn--line{border-color:rgba(240,206,134,.45);color:var(--gold-soft)}
.btn--line:hover{background:rgba(217,164,65,.14);color:var(--lamp)}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-data);font-size:12px;letter-spacing:.1em;color:var(--stone)}
.crumb{color:var(--stone)}
.crumb:hover{color:var(--clay)}
.crumb-sep{color:var(--gold)}
.crumb--current{color:var(--ink)}

/* ============ 卡片与数据 ============ */
.card{position:relative;background:#FFFDF8;border:1px solid var(--hair);border-radius:var(--r-lg);padding:clamp(18px,2.4vw,26px);box-shadow:var(--shadow-soft)}
.card--panel{background:linear-gradient(150deg,rgba(27,44,74,.96),rgba(16,28,51,.98));border-color:var(--hair-light);color:var(--cream)}
.card--data{background:#FFFDF8;border-left:3px solid var(--gold)}
.card-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.card-title{font-family:var(--font-serif);font-size:20px;line-height:1.35}
.card-meta{font-family:var(--font-data);font-size:12px;letter-spacing:.08em;color:var(--stone)}
.card--panel .card-meta{color:var(--light-45)}
.card-stack{display:grid;gap:clamp(16px,2vw,24px)}
.data-num{font-family:var(--font-data);font-variant-numeric:tabular-nums;letter-spacing:.08em;font-size:1.1em;color:var(--navy)}
.card--panel .data-num{color:var(--lamp)}
.data-num--lg{display:block;font-size:clamp(30px,3.6vw,44px);letter-spacing:.06em;line-height:1}
.delta-up{color:var(--pitch);font-family:var(--font-data);letter-spacing:.06em}
.delta-down{color:var(--ember);font-family:var(--font-data);letter-spacing:.06em}
.flag-live{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-data);font-size:12px;letter-spacing:.12em;color:var(--ember)}
.flag-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ember);box-shadow:0 0 0 3px rgba(228,87,46,.22);animation:livePulse 2s ease-in-out infinite}
@keyframes livePulse{0%,100%{opacity:1}50%{opacity:.35}}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-sm);font-size:12px;font-weight:600;letter-spacing:.06em;background:rgba(169,88,58,.12);color:var(--clay)}
.tag--gold{background:rgba(217,164,65,.18);color:#8A6420}
.tag--pitch{background:rgba(62,142,90,.14);color:var(--pitch)}
.tag--dark{background:rgba(240,206,134,.14);color:var(--gold-soft)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-pill);border:1px solid var(--hair);background:transparent;font-size:13px;color:var(--ink-70);cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.chip:hover{border-color:var(--gold);color:var(--clay)}
.chip.is-active,.chip[aria-pressed="true"]{background:var(--navy);color:var(--cream);border-color:var(--navy)}

/* ============ 图片容器 ============ */
.media-frame{position:relative;overflow:hidden;border-radius:var(--r-md);background:linear-gradient(140deg,var(--navy-2),var(--navy));isolation:isolate}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--21x9{aspect-ratio:21/9}
.media-grain{position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 6px),repeating-linear-gradient(0deg,rgba(16,28,51,.12) 0 1px,transparent 1px 5px)}
.media-scrim{position:absolute;left:0;right:0;bottom:0;height:58%;pointer-events:none;background:linear-gradient(180deg,transparent,rgba(16,28,51,.86))}
.media-tag{position:absolute;top:12px;left:12px;padding:4px 10px;border-radius:var(--r-sm);background:rgba(16,28,51,.72);color:var(--gold-soft);font-family:var(--font-data);font-size:11px;letter-spacing:.14em}
.media-cap{position:absolute;left:14px;right:14px;bottom:14px;display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;font-family:var(--font-data);font-size:12px;letter-spacing:.08em;color:var(--lamp)}

/* ============ 显现 ============ */
.reveal-ready [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal-ready [data-reveal].is-in{opacity:1;transform:none}

/* ============ 头部：悬浮胶囊 ============ */
.site-head{position:sticky;top:0;z-index:60}
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;transform:scaleX(0);transform-origin:0 50%;background:linear-gradient(90deg,var(--gold),var(--ember));z-index:90;pointer-events:none;will-change:transform}
.skip-link{position:fixed;left:50%;top:-72px;transform:translateX(-50%);z-index:95;padding:10px 20px;border-radius:0 0 14px 14px;background:var(--gold);color:var(--navy);font-weight:700;font-size:14px;transition:top .18s ease}
.skip-link:focus,.skip-link:focus-visible{top:0}

.head-bar{display:flex;align-items:center;gap:clamp(8px,1.4vw,20px);width:min(1240px,calc(100% - 2*var(--pad)));margin:12px auto;padding:8px clamp(10px,1.2vw,16px);border-radius:var(--r-pill);color:var(--cream);background:linear-gradient(112deg,rgba(16,28,51,.97) 0%,rgba(27,44,74,.94) 60%,rgba(16,28,51,.96) 100%);border:1px solid rgba(240,206,134,.16);box-shadow:0 22px 46px -28px rgba(16,28,51,.95),inset 0 1px 0 rgba(240,206,134,.14);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:padding .22s ease,box-shadow .22s ease}
.site-head.is-compact .head-bar{padding-top:5px;padding-bottom:5px;box-shadow:0 16px 34px -26px rgba(16,28,51,.9),inset 0 1px 0 rgba(240,206,134,.12)}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--cream)}
.brand-mark{font-family:var(--font-display);font-weight:800;font-stretch:87%;font-size:22px;line-height:1;letter-spacing:-.02em;color:var(--navy);background:linear-gradient(135deg,var(--gold),var(--gold-soft));padding:7px 10px;border-radius:12px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.02em}
.brand-sub{font-family:var(--font-data);font-size:10px;letter-spacing:.2em;color:rgba(240,206,134,.7)}

.capsule{position:relative;flex:1 1 auto;display:flex;justify-content:center}
.capsule-list{display:flex;gap:2px;position:relative;z-index:2}
.capsule-link{display:inline-flex;align-items:center;gap:6px;padding:9px 12px;border-radius:var(--r-pill);font-size:14px;color:rgba(244,239,230,.78);transition:color .18s ease}
.capsule-index{font-family:var(--font-data);font-size:10px;letter-spacing:.08em;color:rgba(240,206,134,.5);transition:color .18s ease}
.capsule-link:hover{color:var(--lamp)}
.capsule-link:hover .capsule-index{color:var(--gold)}
.capsule-link[aria-current="page"]{color:var(--gold)}
.capsule-link[aria-current="page"] .capsule-index{color:var(--gold-soft)}
.capsule-glider{position:absolute;top:6px;bottom:6px;left:0;width:0;opacity:0;border-radius:var(--r-pill);background:rgba(217,164,65,.16);box-shadow:inset 0 0 0 1px rgba(240,206,134,.28);transition:transform .22s ease-out,width .22s ease-out,opacity .18s ease-out;z-index:1}

.head-slot{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.pill{display:inline-flex;align-items:center;gap:6px;padding:8px 13px;border-radius:var(--r-pill);font-size:13px;font-weight:600;letter-spacing:.02em;border:1px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.pill--gold{color:var(--gold-soft);border-color:rgba(240,206,134,.35);background:rgba(217,164,65,.1)}
.pill--gold:hover{background:rgba(217,164,65,.22);color:var(--lamp)}
.pill--live{color:var(--lamp);background:linear-gradient(135deg,var(--ember),#C9431F);box-shadow:0 12px 26px -18px rgba(228,87,46,.95)}
.pill--live:hover{background:linear-gradient(135deg,#F0683F,var(--ember))}
.pill-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 0 3px rgba(255,255,255,.22)}
.head-cta{display:inline-flex;align-items:center;padding:9px 16px;border-radius:var(--r-pill);background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:var(--navy);font-size:13px;font-weight:700;letter-spacing:.04em;box-shadow:0 14px 28px -18px rgba(217,164,65,.95);transition:background-color .18s ease}
.head-cta:hover{background:linear-gradient(135deg,var(--gold-soft),var(--gold))}

.nav-toggle{display:none;align-items:center;gap:8px;margin-left:auto;padding:9px 14px;border-radius:var(--r-pill);border:1px solid rgba(240,206,134,.3);background:rgba(217,164,65,.12);color:var(--cream);font-size:13px;cursor:pointer}
.nav-toggle-icon{display:block;width:14px}
.nav-toggle-bar{display:block;width:14px;height:2px;border-radius:2px;background:var(--gold-soft);transition:transform .2s ease}
.nav-toggle-bar+.nav-toggle-bar{margin-top:4px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child{transform:translateY(-3px) rotate(-45deg)}

.head-dock{display:none}

/* ============ 页脚 ============ */
.site-foot{position:relative;margin-top:clamp(48px,8vw,96px);color:var(--cream);background:radial-gradient(120% 140% at 12% 0%,var(--navy-2) 0%,var(--navy) 58%,var(--navy-3) 100%);overflow:hidden}
.foot-band{height:3px;background:linear-gradient(90deg,transparent 0,var(--gold) 18%,var(--gold-soft) 38%,var(--ember) 52%,var(--gold) 72%,transparent 100%)}
.foot-inner{padding:clamp(44px,7vw,80px) 0 clamp(28px,4vw,44px)}
.foot-top{display:grid;grid-template-columns:minmax(240px,1.05fr) minmax(0,2fr);gap:clamp(24px,4vw,56px)}
.foot-logo{font-family:var(--font-display);font-weight:800;font-stretch:87%;letter-spacing:-.02em;line-height:1;font-size:clamp(30px,4vw,44px);color:var(--cream)}
.foot-logo span{color:var(--gold)}
.foot-tag{margin-top:12px;font-size:14px;line-height:1.7;color:var(--light-70);max-width:22em}
.foot-stamp{margin-top:10px;font-family:var(--font-data);font-size:11px;letter-spacing:.16em;color:var(--light-45)}
.foot-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.foot-col-title{margin-bottom:14px;font-size:12px;font-weight:600;letter-spacing:.24em;color:var(--gold-soft)}
.foot-list{display:grid;gap:10px}
.foot-link{color:var(--light-70);font-size:15px;border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.foot-link:hover{color:var(--gold);border-color:rgba(217,164,65,.5)}
.foot-contact{margin-top:14px;display:grid;gap:6px}
.contact-line{font-family:var(--font-data);font-size:13px;letter-spacing:.04em;color:var(--light-70)}
.foot-bottom{margin-top:clamp(32px,5vw,56px);padding-top:22px;border-top:1px solid var(--hair-light);display:grid;grid-template-columns:1fr auto;gap:12px 24px;align-items:center}
.foot-copy{font-family:var(--font-data);font-size:12px;letter-spacing:.08em;color:var(--light-45)}
.foot-legal{display:flex;flex-wrap:wrap;gap:18px}
.legal-link{font-size:13px;letter-spacing:.06em;color:var(--light-70)}
.legal-link:hover{color:var(--gold-soft)}
.foot-note,.foot-addr{grid-column:1/-1;font-size:12px;line-height:1.7;color:var(--light-45)}
.foot-addr{font-family:var(--font-data);letter-spacing:.04em}

.to-top{position:fixed;right:var(--pad);bottom:26px;z-index:75;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:var(--r-pill);border:1px solid rgba(240,206,134,.35);background:rgba(16,28,51,.92);color:var(--gold-soft);font-size:13px;letter-spacing:.06em;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;box-shadow:0 18px 34px -24px rgba(16,28,51,.95)}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:rgba(27,44,74,.98);color:var(--lamp)}

/* ============ 平板 ============ */
@media (max-width:1080px){
  .brand-sub{display:none}
  .capsule-link{padding:9px 10px;font-size:13.5px}
}

/* ============ 移动 ============ */
@media (max-width:900px){
  body{padding-bottom:76px}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .span-4{grid-column:span 6}.span-5{grid-column:span 6}.span-6{grid-column:span 6}
  .span-7{grid-column:span 6}.span-8{grid-column:span 6}.span-12{grid-column:span 6}

  .head-bar{margin:8px auto;gap:10px}
  .capsule{position:fixed;left:var(--pad);right:var(--pad);top:80px;display:block;flex:none;padding:14px;border-radius:var(--r-lg);background:linear-gradient(150deg,rgba(27,44,74,.99),rgba(16,28,51,.99));border:1px solid rgba(240,206,134,.22);box-shadow:0 32px 60px -30px rgba(16,28,51,.95);opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;z-index:80;max-height:calc(100vh - 180px);overflow-y:auto}
  .capsule[data-open]{opacity:1;visibility:visible;transform:none}
  .capsule-list{display:grid;gap:4px}
  .capsule-link{padding:13px 14px;font-size:16px;border-radius:var(--r-md)}
  .capsule-link[aria-current="page"]{background:rgba(217,164,65,.14)}
  .capsule-index{font-size:11px}
  .capsule-glider{display:none}
  .head-slot{display:none}
  .nav-toggle{display:inline-flex}
  .head-dock{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;align-items:center;gap:10px;padding:0 var(--pad);padding-bottom:env(safe-area-inset-bottom);background:linear-gradient(180deg,rgba(16,28,51,.94),rgba(12,23,41,.99));border-top:1px solid rgba(240,206,134,.22);box-shadow:0 -18px 32px -26px rgba(16,28,51,.95);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
  .dock-link{flex:1 1 0;display:flex;align-items:center;justify-content:center;gap:6px;height:44px;border-radius:var(--r-pill);font-size:14px;font-weight:700;letter-spacing:.02em}
  .dock-link--gold{background:linear-gradient(135deg,var(--gold),var(--gold-soft));color:var(--navy)}
  .dock-link--live{background:linear-gradient(135deg,var(--ember),#C9431F);color:var(--lamp)}

  .foot-top{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:repeat(3,minmax(0,1fr))}
  .foot-bottom{grid-template-columns:1fr}
  .foot-legal{gap:14px}
  .to-top{bottom:84px}
}

@media (max-width:620px){
  .brand-text{display:none}
  .head-bar{padding:6px 10px}
  .nav-toggle{padding:8px 12px}
  .foot-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-legal{gap:12px}
}

/* ============ 减少动效 ============ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal-ready [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  .flag-live::before{animation:none}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}