/* ============================================================
   HAHA赛场 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

/* ---------- reset ---------- */
*,
*::before,
*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{margin:0}

h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}

ul,ol{padding:0;list-style:none}

img,svg,video{display:block;max-width:100%;height:auto}

a{color:inherit}

button{font:inherit;color:inherit}

/* ---------- 变量 ---------- */
:root{
  --grass:#1FA34A;
  --grass-deep:#157A37;
  --lime:#D9F531;
  --ink:#0E2233;
  --night:#071720;
  --coral:#FF6A4D;
  --paper:#F7F9F4;
  --steel:#2E4A5C;
  --glass:rgba(247,249,244,.14);
  --standby:#B9C6BE;
  --line:#E8EFE6;
  --rule:rgba(46,74,92,.22);
  --rule-light:rgba(232,239,230,.16);

  --font-display:"Arial Narrow","HarmonyOS Sans Condensed","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Roboto Mono",SFMono-Regular,Menlo,Consolas,monospace;

  --ease:cubic-bezier(.2,.7,.2,1);
  --shell:1280px;
  --gutter:clamp(16px,4vw,40px);
  --header-h:68px;
}

/* ---------- 中文排版与基础 ---------- */
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

@media (max-width:640px){
  body{font-size:16px}
}

[id]{scroll-margin-top:calc(var(--header-h) + 18px)}

p{max-width:38em}

strong,b{font-weight:700}

::selection{background:var(--lime);color:var(--ink)}

.label{
  display:inline-block;
  font-family:var(--font-body);
  font-size:11px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel);
  line-height:1.4;
}

.num{
  font-family:var(--font-num);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* ---------- 焦点反馈 ---------- */
:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  box-shadow:0 0 0 5px rgba(7,23,32,.55);
}

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;
  top:-72px;
  left:var(--gutter);
  z-index:200;
  display:inline-block;
  padding:10px 18px;
  background:var(--lime);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  border-radius:2px;
  transition:top .16s var(--ease);
}
.skip-link:focus{top:12px}

/* ============================================================
   头部 · 紧凑命令栏
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--night);
  color:var(--paper);
  border-bottom:1px solid var(--rule-light);
}

.header-stripe{
  display:block;
  height:3px;
  background:linear-gradient(90deg,
    var(--lime) 0 14%,
    var(--grass) 14% 58%,
    var(--coral) 58% 63%,
    var(--steel) 63% 100%);
}

.header-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  width:100%;
  max-width:var(--shell);
  min-height:var(--header-h);
  margin-inline:auto;
  padding-inline:var(--gutter);
  transition:min-height .18s var(--ease);
}

.site-header[data-scrolled="true"] .header-inner{min-height:54px}

/* 品牌 */
.brand{
  order:1;
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--paper);
}

.brand-mark{
  display:grid;
  grid-template-columns:repeat(3,4px);
  align-items:end;
  gap:3px;
  height:24px;
}

.brand-mark i{
  display:block;
  width:100%;
  height:100%;
  background:var(--lime);
  transform-origin:bottom;
  transition:transform .16s var(--ease),opacity .16s var(--ease);
}
.brand-mark i:nth-child(1){height:46%;background:var(--grass)}
.brand-mark i:nth-child(2){height:100%}
.brand-mark i:nth-child(3){height:70%;background:var(--standby)}

.brand:hover .brand-mark i:nth-child(1){transform:scaleY(1.6)}
.brand:hover .brand-mark i:nth-child(3){transform:scaleY(1.25)}

.brand-text{display:flex;flex-direction:column;line-height:1.15}

.brand-name{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--paper);
}

.brand-sub{
  font-size:10.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--standby);
  white-space:nowrap;
}

.site-header[data-scrolled="true"] .brand-sub{
  opacity:0;
  transform:translateY(-4px);
  pointer-events:none;
  transition:opacity .14s var(--ease),transform .14s var(--ease);
}

/* 导航 */
.site-nav{
  order:2;
  display:flex;
  align-items:center;
}

.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}

.nav-link{
  display:inline-block;
  padding:7px 11px;
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.03em;
  color:rgba(247,249,244,.76);
  text-decoration:none;
  border-radius:2px;
  white-space:nowrap;
  transition:color .14s var(--ease),background-color .14s var(--ease);
}

.nav-link:hover{
  color:var(--paper);
  background:var(--glass);
}

.nav-link[aria-current="page"]{
  color:var(--ink);
  background:var(--lime);
  font-weight:700;
}

/* 导航底部块（仅移动抽屉） */
.nav-foot{display:none}

.nav-foot-label{
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--standby);
  text-transform:uppercase;
}

.nav-foot-value{
  margin-top:4px;
  font-family:var(--font-num);
  font-size:14px;
  color:var(--paper);
  word-break:break-all;
}

.nav-foot-cta{margin-top:16px;align-self:flex-start}

/* 赛季状态 */
.header-status{
  order:3;
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border:1px solid rgba(232,239,230,.26);
  border-radius:2px;
  font-size:10.5px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--standby);
  white-space:nowrap;
}

.status-dot{
  display:block;
  width:7px;
  height:7px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--coral);
  box-shadow:0 0 0 3px rgba(255,106,77,.24);
  animation:statusPulse 2.4s var(--ease) infinite;
}

@keyframes statusPulse{
  0%,100%{box-shadow:0 0 0 3px rgba(255,106,77,.24)}
  50%{box-shadow:0 0 0 6px rgba(255,106,77,.06)}
}

.status-value{color:var(--lime)}

/* 头部按钮 */
.header-cta{
  order:4;
  flex:0 0 auto;
  padding:.5em .95em;
  font-size:13px;
}

/* 移动开关 */
.nav-toggle{
  order:5;
  display:none;
  place-content:center;
  place-items:center;
  width:42px;
  height:42px;
  flex:0 0 auto;
  padding:0;
  background:transparent;
  border:1px solid rgba(232,239,230,.32);
  border-radius:2px;
  cursor:pointer;
  transition:border-color .14s var(--ease),background-color .14s var(--ease);
}

.nav-toggle:hover{border-color:var(--lime);background:var(--glass)}

.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  margin:2.5px auto;
  background:var(--paper);
  transition:transform .18s var(--ease),opacity .18s var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 滚动进度 */
.header-progress{
  position:relative;
  z-index:2;
  height:2px;
  width:100%;
  background:linear-gradient(90deg,var(--lime),var(--coral));
  transform:scaleX(0);
  transform-origin:0 50%;
  will-change:transform;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  background:var(--night);
  color:var(--paper);
  font-size:14px;
}

.footer-tape{
  display:flex;
  gap:4px;
  height:5px;
  overflow:hidden;
}

.footer-tape span{
  flex:1 1 auto;
  background:var(--steel);
  opacity:.5;
}
.footer-tape span:nth-child(3n){background:var(--grass);opacity:1}
.footer-tape span:nth-child(4n){background:var(--lime);opacity:1}

.footer-inner{
  display:grid;
  grid-template-columns:1.15fr 1.55fr 1fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:clamp(36px,6vw,64px) var(--gutter) clamp(26px,4vw,44px);
}

.footer-kicker{
  font-family:var(--font-num);
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--lime);
  margin-bottom:10px;
  max-width:none;
}

.footer-brand{
  font-family:var(--font-display);
  font-size:clamp(28px,3.6vw,40px);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.01em;
  color:var(--paper);
  max-width:none;
}

.footer-line{
  margin-top:10px;
  max-width:260px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--standby);
}

.footer-cta{margin-top:20px}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.5vw,28px);
}

.footer-group-title{
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--standby);
  text-transform:uppercase;
  padding-left:10px;
  border-left:2px solid var(--grass);
  margin-bottom:14px;
}

.footer-links li + li{margin-top:8px}

.footer-links a{
  display:inline-block;
  padding:2px 0;
  font-size:14px;
  color:rgba(247,249,244,.82);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .14s var(--ease),border-color .14s var(--ease);
}

.footer-links a:hover{
  color:var(--lime);
  border-bottom-color:var(--lime);
}

.contact-list li + li{margin-top:12px}

.contact-item{
  display:flex;
  flex-direction:column;
  gap:2px;
}

.contact-label{
  font-size:10px;
  letter-spacing:.18em;
  color:var(--lime);
}

.contact-value{
  font-size:13.5px;
  line-height:1.65;
  color:rgba(247,249,244,.84);
  word-break:break-word;
}

.footer-confirm{margin-top:18px;font-size:13px;padding:.5em .95em}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  gap:8px 28px;
  align-items:baseline;
  justify-content:space-between;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:16px var(--gutter) 30px;
  border-top:1px solid var(--rule-light);
  font-size:12px;
  letter-spacing:.05em;
  color:var(--standby);
}

.footer-legal,
.footer-note{max-width:none}

.footer-note{color:rgba(185,198,190,.78)}

/* ============================================================
   通用容器与基础组件
   ============================================================ */
.wrap{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.wrap--narrow{max-width:820px}

.section{padding-block:clamp(30px,5vw,60px)}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 20px;
  padding-bottom:12px;
  margin-bottom:clamp(16px,2.5vw,26px);
  border-bottom:1px solid var(--rule);
}

.section-title{
  font-family:var(--font-display);
  font-size:clamp(22px,3vw,32px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
}

.section-note{
  margin-left:auto;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--steel);
  max-width:none;
}

.divider{
  height:1px;
  border:0;
  margin-block:clamp(22px,4vw,38px);
  background:var(--rule);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:.62em 1.15em;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.05em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .14s var(--ease),color .14s var(--ease),
             border-color .14s var(--ease),transform .14s var(--ease);
}

.btn:hover{transform:translateY(-2px)}
.btn:active{transform:none}

.btn-lime{
  background:var(--lime);
  color:var(--ink);
  border-color:var(--lime);
}
.btn-lime:hover{background:#e8ff52;border-color:#e8ff52}

.btn-coral{
  background:var(--coral);
  color:var(--ink);
  border-color:var(--coral);
}
.btn-coral:hover{background:#ff8168;border-color:#ff8168}

.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--steel);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

.btn-ghost-light{
  background:transparent;
  color:var(--paper);
  border-color:rgba(232,239,230,.42);
}
.btn-ghost-light:hover{
  background:var(--paper);
  color:var(--ink);
  border-color:var(--paper);
}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  padding-block:clamp(26px,4.5vw,52px) clamp(24px,3.5vw,40px);
  background:var(--ink);
  color:var(--paper);
}

.page-head::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:6px;
  background:repeating-linear-gradient(90deg,
    var(--lime) 0 3px,
    transparent 3px 20px);
  opacity:.45;
  pointer-events:none;
}

.page-kicker{
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--lime);
  margin-bottom:10px;
  max-width:none;
}

.page-title{
  font-family:var(--font-display);
  font-size:clamp(30px,5vw,56px);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.015em;
  color:var(--paper);
}

.page-desc{
  margin-top:14px;
  max-width:34em;
  font-size:15.5px;
  line-height:1.75;
  color:var(--standby);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:14px}

.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--steel);
}

.breadcrumb-item + .breadcrumb-item::before{
  content:"/";
  margin-right:8px;
  color:var(--steel);
  opacity:.55;
}

.breadcrumb-item a{
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:border-color .14s var(--ease),color .14s var(--ease);
}

.breadcrumb-item a:hover{
  color:var(--ink);
  border-bottom-color:currentColor;
}

.breadcrumb-item [aria-current="page"]{
  color:var(--ink);
  font-weight:700;
}

.page-head .breadcrumb-list{color:var(--standby)}
.page-head .breadcrumb-item a:hover,
.page-head .breadcrumb-item [aria-current="page"]{color:var(--lime)}

/* ---------- 网格 ---------- */
.grid{
  display:grid;
  gap:clamp(14px,2.4vw,24px);
}

.grid-5-7{grid-template-columns:5fr 7fr}
.grid-7-5{grid-template-columns:7fr 5fr}

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  padding:clamp(16px,2.4vw,24px);
  background:var(--paper);
  border:1px solid var(--rule);
  border-radius:2px;
  transition:transform .16s var(--ease),border-color .16s var(--ease),
             box-shadow .16s var(--ease);
}

.card:hover{
  transform:translateY(-3px);
  border-color:var(--ink);
  box-shadow:0 12px 26px -20px rgba(14,34,51,.9);
}

.archive-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:18px 20px 20px 24px;
  background:var(--paper);
  border:1px solid var(--rule);
  border-radius:2px;
  overflow:hidden;
  transition:transform .16s var(--ease),border-color .16s var(--ease);
}

.archive-card::before{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:4px;
  background:var(--grass);
  transition:background-color .16s var(--ease);
}

.archive-card:hover{transform:translateY(-3px);border-color:var(--ink)}
.archive-card:hover::before{background:var(--coral)}

.archive-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

.archive-card-tag{
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel);
}

.archive-card-title{
  font-family:var(--font-display);
  font-size:18px;
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.005em;
}

.archive-card-body{
  font-size:14px;
  line-height:1.7;
  color:var(--steel);
  max-width:none;
}

.archive-card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:4px 12px;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--steel);
}

/* ---------- 筛选 chips ---------- */
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:.42em .82em;
  background:transparent;
  color:var(--ink);
  border:1px solid var(--steel);
  border-radius:2px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.05em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .14s var(--ease),color .14s var(--ease),
             border-color .14s var(--ease),box-shadow .14s var(--ease);
}

.chip:hover{
  border-color:var(--ink);
  background:rgba(14,34,51,.07);
}

.chip.is-active{
  background:var(--ink);
  color:var(--paper);
  border-color:var(--ink);
  box-shadow:inset 4px 0 0 var(--coral);
  padding-left:1.1em;
}

/* ---------- 数据条 ---------- */
.data-bar{
  height:8px;
  border-radius:1px;
  background:rgba(46,74,92,.16);
  overflow:hidden;
}

.data-bar-fill{
  height:100%;
  width:var(--fill,60%);
  background:linear-gradient(90deg,var(--grass),var(--lime));
  transform-origin:0 50%;
}

/* ---------- 横向轨道 ---------- */
.rail{
  display:flex;
  gap:clamp(12px,2vw,18px);
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scroll-snap-type:x proximity;
  padding-bottom:14px;
  scrollbar-width:thin;
  scrollbar-color:var(--grass) transparent;
}

.rail > *{
  flex:0 0 clamp(238px,30vw,336px);
  scroll-snap-align:start;
}

.rail:focus-visible{outline-offset:6px}

.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:rgba(46,74,92,.14)}
.rail::-webkit-scrollbar-thumb{background:var(--grass)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border-radius:2px;
  background:linear-gradient(135deg,var(--ink),var(--steel));
}

.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  box-shadow:inset 0 0 0 1px rgba(232,239,230,.2);
  pointer-events:none;
}

.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:4 / 5}

.media-frame--empty::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    repeating-linear-gradient(115deg,
      rgba(217,245,49,.12) 0 2px,
      transparent 2px 22px);
}

.media-caption{
  margin-top:8px;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--steel);
  max-width:none;
}

/* ---------- 旁注 ---------- */
.aside-note{
  padding:14px 16px;
  background:rgba(46,74,92,.07);
  border-left:3px solid var(--grass);
  font-size:13.5px;
  line-height:1.7;
  color:var(--steel);
}

.aside-note p{max-width:none}
.aside-note p + p{margin-top:8px}

/* ---------- 目录锚点 ---------- */
.toc{
  display:flex;
  flex-direction:column;
  gap:2px;
}

.toc-link{
  display:block;
  padding:6px 12px;
  margin-left:-4px;
  border-left:3px solid transparent;
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--steel);
  text-decoration:none;
  transition:background-color .14s var(--ease),color .14s var(--ease),
             border-color .14s var(--ease);
}

.toc-link:hover{
  color:var(--ink);
  background:rgba(31,163,74,.1);
}

.toc-link[aria-current="true"]{
  color:var(--ink);
  font-weight:700;
  background:rgba(217,245,49,.34);
  border-left-color:var(--lime);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1180px){
  .header-status{display:none}
  .header-cta{order:3;margin-left:auto}
  .nav-toggle{order:5}
}

@media (max-width:1040px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .footer-lead{grid-column:1 / -1}
  .footer-contact{
    grid-column:1 / -1;
    display:grid;
    grid-template-columns:1fr auto;
    align-items:start;
    column-gap:24px;
  }
  .footer-contact .footer-group-title{grid-column:1 / -1}
  .footer-contact .contact-list{grid-column:1}
  .footer-contact .footer-confirm{grid-column:2;margin-top:0}
}

@media (max-width:960px){
  .nav-toggle{display:grid}

  .site-nav{
    position:fixed;
    inset:0;
    z-index:1;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:calc(var(--header-h) + 26px) var(--gutter) 40px;
    background:var(--night);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .18s var(--ease),transform .18s var(--ease),
               visibility .18s var(--ease);
  }

  .site-nav[data-open="true"]{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:none;
  }

  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    border-top:1px solid var(--rule-light);
  }

  .nav-link{
    display:block;
    padding:16px 4px;
    font-size:17px;
    font-weight:600;
    letter-spacing:.02em;
    border-radius:0;
    border-bottom:1px solid var(--rule-light);
  }

  .nav-link[aria-current="page"]{
    background:rgba(217,245,49,.12);
    color:var(--lime);
    box-shadow:inset 4px 0 0 var(--lime);
    padding-left:16px;
  }

  .nav-foot{
    display:flex;
    flex-direction:column;
    margin-top:28px;
    padding-top:20px;
    border-top:1px solid var(--rule-light);
  }

  body.nav-open{overflow:hidden}

  .header-cta{font-size:12.5px;padding:.5em .8em}

  .grid-5-7,
  .grid-7-5{grid-template-columns:1fr}
}

@media (max-width:720px){
  :root{--header-h:60px}

  .brand-name{font-size:18px}
  .brand-sub{font-size:10px;letter-spacing:.1em}

  .header-inner{gap:10px}

  .page-desc{font-size:15px}

  .section-note{margin-left:0;width:100%}

  .footer-nav{grid-template-columns:1fr 1fr}
}

@media (max-width:680px){
  .footer-inner{grid-template-columns:1fr;gap:28px}
  .footer-contact{
    grid-column:auto;
    display:block;
  }
  .footer-contact .footer-confirm{margin-top:16px}
  .footer-base{flex-direction:column;align-items:flex-start}
}

@media (max-width:520px){
  .header-cta{
    padding:.5em .7em;
    font-size:12px;
    letter-spacing:.02em;
  }

  .brand-sub{display:none}

  .footer-nav{grid-template-columns:1fr}

  .rail > *{flex:0 0 84%}
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}

  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }

  .btn:hover,
  .card:hover,
  .archive-card:hover{transform:none}

  .brand:hover .brand-mark i:nth-child(1),
  .brand:hover .brand-mark i:nth-child(3){transform:none}

  .status-dot{animation:none}
}