/* ==========================================================================
   鸿禾 · 共享样式表 /assets/site.css
   深夜工作灯：暗夜蓝为底，稻绿定调，麦黄点缀，灯芯橙只留给行动点
   ========================================================================== */

/* 1. 设计变量 ------------------------------------------------------------ */
:root{
  --hh-night:#1B2A41;
  --hh-night-deep:#131E2E;
  --hh-green:#2E4A2E;
  --hh-green-2:#3F6B3F;
  --hh-green-3:#86A886;
  --hh-wheat:#E3B23C;
  --hh-wheat-soft:#F2D89A;
  --hh-wick:#F26B3A;
  --hh-index:#17C3B2;
  --hh-index-ink:#0E7C72;
  --hh-violet:#6E5AA8;
  --hh-paper:#F7F3E8;
  --hh-paper-2:#EFE9DA;
  --hh-paper-card:#FFFDF6;
  --hh-ink:#1E2A33;
  --hh-muted:#5C6B7A;

  --hh-line:rgba(30,42,51,.14);
  --hh-line-dark:rgba(134,168,134,.24);

  --hh-serif:"Songti SC","Source Han Serif SC","Noto Serif SC","STSong",Georgia,"Times New Roman",serif;
  --hh-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --hh-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --hh-radius-s:12px;
  --hh-radius-m:20px;
  --hh-radius-l:28px;
  --hh-radius-pill:999px;

  --hh-max:1240px;
  --hh-gutter:22px;
  --hh-header-h:128px;

  --hh-ease:cubic-bezier(.22,.61,.36,1);
  --hh-shadow:0 14px 34px rgba(19,30,46,.14);
}

/* 2. Reset 与基础 -------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}

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

body{
  margin:0;
  padding-top:var(--hh-header-h);
  background:var(--hh-night-deep);
  color:var(--hh-ink);
  font-family:var(--hh-sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

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

a{color:inherit}

button{font:inherit;color:inherit;background:none;border:0;padding:0}

h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol,dl{margin:0}

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

[hidden]{display:none !important}

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

:focus-visible{outline:2px solid var(--hh-index);outline-offset:3px}

@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

/* 3. 排版元件 ------------------------------------------------------------ */
.hh-mono{
  font-family:var(--hh-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}

.hh-eyebrow{
  font-family:var(--hh-mono);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--hh-wheat);
  margin:0;
}

.hh-title{
  font-family:var(--hh-serif);
  font-weight:700;
  line-height:1.18;
  letter-spacing:.01em;
  margin:0;
}

.hh-title--xl{font-size:clamp(38px,6.2vw,64px)}
.hh-title--lg{font-size:clamp(28px,4vw,44px)}
.hh-title--md{font-size:clamp(22px,2.6vw,30px)}

.hh-lead{
  margin:0;
  font-size:17px;
  line-height:1.8;
  color:var(--hh-muted);
  max-width:36em;
}

.hh-prose{
  font-size:17px;
  line-height:1.75;
  max-width:38em;
}

.hh-prose > * + *{margin-top:1em}

.hh-note{
  position:relative;
  padding:15px 20px 15px 24px;
  border-radius:var(--hh-radius-s);
  background:rgba(242,216,154,.34);
  color:#43402F;
  font-size:14px;
  line-height:1.7;
}

.hh-note::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  bottom:12px;
  width:3px;
  border-radius:3px;
  background:var(--hh-wick);
}

.hh-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:var(--hh-radius-pill);
  border:1px solid rgba(23,195,178,.4);
  background:rgba(23,195,178,.13);
  color:var(--hh-index-ink);
  font-family:var(--hh-mono);
  font-size:11px;
  letter-spacing:.1em;
  white-space:nowrap;
}

.hh-tag--wheat{
  border-color:rgba(227,178,60,.5);
  background:rgba(242,216,154,.42);
  color:#7A5A12;
}

/* 4. 布局容器与栅格 ------------------------------------------------------ */
.hh-container{
  width:100%;
  max-width:var(--hh-max);
  margin-inline:auto;
  padding-inline:var(--hh-gutter);
}

.hh-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:22px;
}

.hh-col-4{grid-column:span 4}
.hh-col-5{grid-column:span 5}
.hh-col-6{grid-column:span 6}
.hh-col-7{grid-column:span 7}
.hh-col-8{grid-column:span 8}
.hh-col-12{grid-column:1 / -1}

.hh-section{
  position:relative;
  padding-block:clamp(52px,8vw,104px);
}

.hh-section--paper{background:var(--hh-paper);color:var(--hh-ink)}
.hh-section--soft{background:var(--hh-paper-2);color:var(--hh-ink)}
.hh-section--night{background:var(--hh-night);color:var(--hh-paper)}
.hh-section--night .hh-lead{color:#9FB49F}
.hh-section--green{background:var(--hh-green);color:var(--hh-paper)}
.hh-section--green .hh-lead{color:#CBDCCB}

/* 章节色带：长度随序号递增 */
.hh-band{
  display:flex;
  align-items:center;
  gap:14px;
  margin:0 0 26px;
}

.hh-band__num{
  font-family:var(--hh-mono);
  font-size:12px;
  letter-spacing:.22em;
  color:var(--hh-wheat);
  white-space:nowrap;
}

.hh-band__line{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--hh-green-3);
  width:34px;
}

.hh-band[data-level="1"] .hh-band__line{width:34px}
.hh-band[data-level="2"] .hh-band__line{width:58px}
.hh-band[data-level="3"] .hh-band__line{width:82px}
.hh-band[data-level="4"] .hh-band__line{width:106px}
.hh-band[data-level="5"] .hh-band__line{width:130px}
.hh-band[data-level="6"] .hh-band__line{width:154px}

/* 5. 按钮 ---------------------------------------------------------------- */
.hh-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border-radius:var(--hh-radius-pill);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.03em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s var(--hh-ease),background-color .2s var(--hh-ease),
             border-color .2s var(--hh-ease),color .2s var(--hh-ease),box-shadow .2s var(--hh-ease);
}

.hh-btn--primary{
  background:var(--hh-wick);
  border-color:var(--hh-wick);
  color:var(--hh-night);
}

.hh-btn--ghost{
  background:transparent;
  border-color:var(--hh-green-2);
  color:var(--hh-green);
}

.hh-btn--paper{
  background:transparent;
  border-color:rgba(247,243,232,.42);
  color:var(--hh-paper);
}

.hh-btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(242,107,58,.28);
}

.hh-btn--ghost:hover{
  transform:translateY(-2px);
  border-color:var(--hh-wheat);
  background:rgba(227,178,60,.14);
}

.hh-btn--paper:hover{
  transform:translateY(-2px);
  border-color:var(--hh-wheat);
  color:var(--hh-wheat);
}

/* 6. 页头 ---------------------------------------------------------------- */
.hh-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:90;
  background:linear-gradient(180deg,#16243A 0%,#1B2A41 100%);
  border-bottom:1px solid var(--hh-line-dark);
  color:var(--hh-paper);
}

.hh-skip{
  position:absolute;
  left:var(--hh-gutter);
  top:-120px;
  z-index:120;
  padding:11px 20px;
  border-radius:0 0 var(--hh-radius-s) var(--hh-radius-s);
  background:var(--hh-wick);
  color:var(--hh-night);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  text-decoration:none;
  transition:top .18s var(--hh-ease);
}

.hh-skip:focus{top:0}

.hh-header__inner{
  position:relative;
  width:100%;
  max-width:var(--hh-max);
  margin-inline:auto;
  padding:14px var(--hh-gutter) 16px;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
}

.hh-brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding-top:2px;
}

.hh-brand__text{min-width:0}

.hh-brand__lamp{
  flex:none;
  width:16px;
  height:16px;
  border-radius:50%;
  background:radial-gradient(circle at 50% 42%,#FFF3CE 0%,var(--hh-wheat) 46%,#8A6520 100%);
  box-shadow:0 0 0 4px rgba(227,178,60,.14),0 0 16px 3px rgba(227,178,60,.4);
  animation:hh-breathe 6s ease-in-out infinite;
}

@keyframes hh-breathe{
  0%,100%{box-shadow:0 0 0 4px rgba(227,178,60,.14),0 0 14px 3px rgba(227,178,60,.32)}
  50%{box-shadow:0 0 0 8px rgba(227,178,60,.07),0 0 26px 8px rgba(227,178,60,.5)}
}

.hh-brand__lamp--dim{
  width:14px;
  height:14px;
  opacity:.9;
  animation:none;
  box-shadow:0 0 0 4px rgba(227,178,60,.08),0 0 12px 2px rgba(227,178,60,.26);
}

.hh-brand__name{
  display:inline-block;
  font-family:var(--hh-serif);
  font-size:26px;
  font-weight:700;
  line-height:1.1;
  letter-spacing:.16em;
  color:var(--hh-paper);
  text-decoration:none;
}

.hh-brand__name:hover{color:var(--hh-wheat)}

.hh-brand__line{
  margin-top:5px;
  font-size:12px;
  line-height:1.45;
  letter-spacing:.05em;
  color:#9FB49F;
}

/* 导航：右端竖排索引 */
.hh-nav{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:2px;
}

.hh-nav__list{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:2px;
}

.hh-nav__link{
  position:relative;
  display:block;
  padding:1px 0 1px 18px;
  font-size:12.5px;
  line-height:1.4;
  letter-spacing:.09em;
  color:#C6D2C6;
  text-decoration:none;
  transition:color .18s var(--hh-ease);
}

.hh-nav__link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:11px;
  height:2px;
  border-radius:2px;
  background:var(--hh-wheat);
  transform:translateY(-50%) scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--hh-ease);
}

@media (hover:hover){
  .hh-nav__link:hover{color:var(--hh-paper)}
  .hh-nav__link:hover::before{transform:translateY(-50%) scaleX(1)}
}

.hh-nav__link[aria-current="page"]{
  color:var(--hh-paper);
  font-weight:700;
}

.hh-nav__link[aria-current="page"]::before{
  transform:translateY(-50%) scaleX(1);
}

.hh-nav__link--action{color:var(--hh-wheat)}

/* 汉堡按钮 */
.hh-nav__toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border-radius:var(--hh-radius-pill);
  border:1.5px solid rgba(134,168,134,.5);
  background:transparent;
  color:var(--hh-paper);
  font-family:var(--hh-mono);
  font-size:12px;
  letter-spacing:.14em;
  cursor:pointer;
  transition:border-color .18s var(--hh-ease),color .18s var(--hh-ease);
}

.hh-nav__toggle:hover{border-color:var(--hh-wheat);color:var(--hh-wheat)}

.hh-burger{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:3px;
  width:15px;
  height:12px;
}

.hh-burger span{
  display:block;
  height:1.5px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--hh-ease),opacity .2s var(--hh-ease);
}

.hh-nav__toggle[aria-expanded="true"] .hh-burger span:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.hh-nav__toggle[aria-expanded="true"] .hh-burger span:nth-child(2){opacity:0}
.hh-nav__toggle[aria-expanded="true"] .hh-burger span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

/* 7. 滚动进度条（右缘细线） */
.hh-progress{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:3px;
  z-index:95;
  background:rgba(134,168,134,.1);
  pointer-events:none;
}

.hh-progress__bar{
  display:block;
  width:100%;
  height:0;
  background:linear-gradient(180deg,var(--hh-index) 0%,var(--hh-wheat) 58%,var(--hh-wick) 100%);
  transition:height .12s linear;
}

/* 8. 页脚 ---------------------------------------------------------------- */
.hh-footer{
  position:relative;
  overflow:hidden;
  background:var(--hh-night);
  color:var(--hh-paper);
}

.hh-footer::before{
  content:"";
  position:absolute;
  left:-140px;
  top:-160px;
  width:540px;
  height:540px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(227,178,60,.16) 0%,rgba(227,178,60,0) 68%);
  pointer-events:none;
}

.hh-footer__inner{
  position:relative;
  width:100%;
  max-width:var(--hh-max);
  margin-inline:auto;
  padding:clamp(48px,7vw,86px) var(--hh-gutter) clamp(34px,5vw,54px);
  display:grid;
  grid-template-columns:1fr 2fr 1.5fr;
  gap:clamp(26px,4vw,56px);
}

.hh-footer__name{
  display:flex;
  align-items:center;
  gap:11px;
  font-family:var(--hh-serif);
  font-size:30px;
  font-weight:700;
  letter-spacing:.18em;
  line-height:1.2;
}

.hh-footer__tag{
  margin-top:12px;
  font-family:var(--hh-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--hh-green-3);
}

.hh-footer__groups{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
}

.hh-footer__title{
  margin:0 0 14px;
  font-family:var(--hh-mono);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--hh-wheat);
}

.hh-footer__list{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.hh-footer__list a{
  font-size:14px;
  line-height:1.6;
  color:#B9C8B9;
  text-decoration:none;
  border-bottom:1px dashed transparent;
  transition:color .18s var(--hh-ease),border-color .18s var(--hh-ease);
}

.hh-footer__list a:hover{
  color:var(--hh-paper);
  border-bottom-color:var(--hh-wheat);
}

.hh-contact{
  display:flex;
  flex-direction:column;
  gap:14px;
}

.hh-contact__item{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 10px;
  font-size:14px;
  line-height:1.6;
}

.hh-contact__label{
  flex:none;
  min-width:64px;
  font-family:var(--hh-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--hh-green-3);
}

.hh-contact__value{
  color:var(--hh-paper);
  word-break:break-word;
}

.hh-contact__item--wide .hh-contact__value{flex:1 1 100%}

.hh-copy{
  flex:none;
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:var(--hh-radius-pill);
  border:1px dashed rgba(134,168,134,.55);
  background:transparent;
  color:#9FB49F;
  font-family:var(--hh-mono);
  font-size:11px;
  letter-spacing:.12em;
  cursor:pointer;
  transition:background-color .18s var(--hh-ease),color .18s var(--hh-ease),
             border-color .18s var(--hh-ease),border-style .18s var(--hh-ease);
}

.hh-copy:hover{
  background:var(--hh-wheat);
  border-color:var(--hh-wheat);
  border-style:solid;
  color:var(--hh-night);
}

.hh-copy[data-copied]{
  background:var(--hh-index);
  border-color:var(--hh-index);
  border-style:solid;
  color:var(--hh-night);
}

.hh-footer__bottom{
  position:relative;
  border-top:1px solid var(--hh-line-dark);
}

.hh-footer__bottom-inner{
  width:100%;
  max-width:var(--hh-max);
  margin-inline:auto;
  padding:18px var(--hh-gutter) 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 22px;
}

.hh-footer__legal{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--hh-green-3);
}

.hh-footer__copy{
  font-size:12px;
  letter-spacing:.06em;
  color:#6E8092;
}

/* 9. 通用内容组件 -------------------------------------------------------- */
.hh-card{
  position:relative;
  display:block;
  padding:24px;
  border-radius:var(--hh-radius-m);
  border:1.5px solid rgba(134,168,134,.34);
  background:var(--hh-paper-card);
  color:var(--hh-ink);
  text-decoration:none;
  transition:border-color .2s var(--hh-ease),transform .2s var(--hh-ease),box-shadow .2s var(--hh-ease);
}

.hh-card:hover{
  border-color:var(--hh-wheat);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(27,42,65,.12);
}

.hh-stat{
  display:flex;
  flex-direction:column;
  gap:6px;
}

.hh-stat__value{
  font-family:var(--hh-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(34px,5vw,64px);
  line-height:1;
  letter-spacing:-.01em;
  color:var(--hh-green);
}

.hh-section--night .hh-stat__value,
.hh-section--green .hh-stat__value{color:var(--hh-wheat)}

.hh-stat__unit{
  font-size:14px;
  color:var(--hh-muted);
}

.hh-section--night .hh-stat__unit,
.hh-section--green .hh-stat__unit{color:#9FB49F}

/* 面包屑 */
.hh-crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-family:var(--hh-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--hh-muted);
}

.hh-crumbs a{
  color:inherit;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--hh-ease),border-color .18s var(--hh-ease);
}

.hh-crumbs a:hover{
  color:var(--hh-green);
  border-bottom-color:var(--hh-wheat);
}

.hh-crumbs__sep{color:var(--hh-green-3)}

.hh-crumbs__here{color:var(--hh-ink);letter-spacing:.06em}

/* 折叠内容组 */
.hh-disclosure{
  border-top:1px solid var(--hh-line);
  background:transparent;
  transition:background-color .24s var(--hh-ease),box-shadow .24s var(--hh-ease);
}

.hh-disclosure__toggle{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:18px 4px;
  text-align:left;
  cursor:pointer;
  color:inherit;
  font-size:17px;
  line-height:1.6;
}

.hh-disclosure__toggle:hover{color:var(--hh-green)}

.hh-disclosure__mark{
  flex:none;
  font-family:var(--hh-mono);
  font-size:15px;
  color:var(--hh-green-2);
  transition:transform .24s var(--hh-ease),color .24s var(--hh-ease);
}

.hh-disclosure__panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .24s var(--hh-ease);
}

.hh-disclosure__inner{
  overflow:hidden;
}

.hh-disclosure__inner > *:last-child{padding-bottom:20px}

.hh-disclosure[data-open]{
  background:rgba(242,216,154,.2);
  box-shadow:inset 3px 0 0 var(--hh-wheat);
}

.hh-disclosure[data-open] .hh-disclosure__panel{grid-template-rows:1fr}

.hh-disclosure[data-open] .hh-disclosure__mark{
  transform:rotate(90deg);
  color:var(--hh-wick);
}

.hh-disclosure__inner{padding-inline:18px}

/* 筛选条 */
.hh-filter{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
}

.hh-filter__btn{
  padding:7px 15px;
  border-radius:var(--hh-radius-pill);
  border:1.5px solid rgba(134,168,134,.55);
  background:transparent;
  color:var(--hh-green);
  font-family:var(--hh-mono);
  font-size:12px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background-color .18s var(--hh-ease),color .18s var(--hh-ease),
             border-color .18s var(--hh-ease),transform .18s var(--hh-ease);
}

.hh-filter__btn:hover{
  border-color:var(--hh-wheat);
  transform:translateY(-1px);
}

.hh-filter__btn[aria-pressed="true"]{
  background:var(--hh-green);
  border-color:var(--hh-green);
  color:var(--hh-paper);
}

/* 图片容器基础规则（页面阶段在内部放 img） */
.hh-media{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border-radius:var(--hh-radius-l);
  background:linear-gradient(140deg,var(--hh-green) 0%,var(--hh-night) 100%);
  isolation:isolate;
}

.hh-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(120% 82% at 22% 12%,rgba(227,178,60,.24) 0%,rgba(227,178,60,0) 62%);
  pointer-events:none;
}

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

.hh-media--wide{aspect-ratio:16/9}
.hh-media--square{aspect-ratio:1/1}
.hh-media--portrait{aspect-ratio:4/5}
.hh-media--tall{aspect-ratio:3/4}

.hh-media__cap{
  margin-top:10px;
  font-family:var(--hh-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--hh-muted);
}

/* 10. 滚动显现 ----------------------------------------------------------- */
.hh-js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .32s var(--hh-ease),transform .32s var(--hh-ease);
}

.hh-js [data-reveal].is-in{
  opacity:1;
  transform:none;
}

/* 11. 响应式 ------------------------------------------------------------- */
@media (max-width:1023px){
  .hh-footer__inner{grid-template-columns:1fr 1fr}
  .hh-footer__brand{grid-column:1 / -1}
}

@media (max-width:899px){
  :root{--hh-header-h:66px}

  .hh-header__inner{
    align-items:center;
    padding:11px var(--hh-gutter) 12px;
  }

  .hh-brand__name{font-size:22px}
  .hh-brand__line{font-size:11px;margin-top:3px}

  .hh-nav__toggle{display:inline-flex}

  .hh-nav{
    position:fixed;
    top:var(--hh-header-h);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px var(--hh-gutter) 22px;
    background:var(--hh-night);
    border-top:1px solid var(--hh-line-dark);
    border-bottom:1px solid var(--hh-line-dark);
    box-shadow:0 22px 44px rgba(9,16,26,.5);
    max-height:calc(100vh - var(--hh-header-h));
    overflow-y:auto;
  }

  .hh-nav[data-open]{display:flex}

  .hh-nav__list{
    align-items:stretch;
    gap:0;
  }

  .hh-nav__link{
    padding:14px 2px;
    font-size:16px;
    line-height:1.5;
    letter-spacing:.06em;
    border-bottom:1px dashed rgba(134,168,134,.2);
  }

  .hh-nav__link::before{display:none}

  .hh-nav__link[aria-current="page"]{
    color:var(--hh-wheat);
    box-shadow:inset 3px 0 0 var(--hh-wheat);
    padding-left:14px;
  }

  .hh-grid{gap:18px}

  .hh-col-4,.hh-col-5,.hh-col-6,.hh-col-7,.hh-col-8{grid-column:1 / -1}
}

@media (max-width:639px){
  body{font-size:16px}

  .hh-footer__inner{grid-template-columns:1fr}
  .hh-footer__groups{grid-template-columns:1fr 1fr}
  .hh-footer__name{font-size:26px}
  .hh-contact__label{min-width:58px}
  .hh-progress{width:2px}
}

@media (max-width:399px){
  .hh-brand__line{display:none}
}

/* 12. 减少动效 ----------------------------------------------------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }

  .hh-js [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }

  .hh-brand__lamp{animation:none;box-shadow:0 0 0 4px rgba(227,178,60,.16),0 0 12px 3px rgba(227,178,60,.34)}
}