/* ==========================================================
   乐盈主页 · 共享样式表 /assets/site.css
   高原门户：非对称编辑部版式 + 紧凑命令栏
   ========================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --sky:#0E6BD6;
  --sky-lift:#1B7AE6;
  --deep:#0A2E5C;
  --pale:#E7F1FE;
  --gold:#F0A62B;
  --gold-lift:#F7B745;
  --sand:#FFF3DE;
  --saffron:#C0392B;
  --snow:#FFFFFF;
  --ink:#2B3A47;
  --mist:#6B7A88;
  --grass:#1F7A5A;

  --line-sky:rgba(14,107,214,.16);
  --line-deep:rgba(10,46,92,.12);
  --line-light:rgba(255,255,255,.12);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  --font-text:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;

  --radius-card:22px;
  --radius-media:18px;
  --radius-input:12px;
  --radius-pill:999px;

  --shadow-card:0 6px 24px rgba(10,46,92,.08);
  --shadow-lift:0 14px 36px rgba(10,46,92,.14);

  --shell:1240px;
  --gutter:28px;

  --ease-out:cubic-bezier(.22,.61,.36,1);
  --ease-hover:cubic-bezier(.4,0,.2,1);
}

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

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

body,
h1,h2,h3,h4,h5,h6,
p,ul,ol,li,figure,figcaption,blockquote,dl,dt,dd{
  margin:0;
}

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

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

a{ color:inherit; }

button,input,select,textarea{ font:inherit; color:inherit; }

[hidden]{ display:none !important; }

/* ---------- 3. 中文排版基线 ---------- */
body{
  font-family:var(--font-text);
  font-size:1.0625rem;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--snow);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

.display,
.h1,.h2,.h3{
  font-family:var(--font-display);
  color:var(--deep);
  font-weight:800;
  letter-spacing:-.02em;
}

.display{
  font-size:clamp(2.5rem,6vw,4.75rem);
  line-height:1.05;
}

.h1{ font-size:2.25rem; line-height:1.25; }
.h2{ font-size:1.5rem; line-height:1.25; font-weight:700; }
.h3{ font-size:1.15rem; line-height:1.35; font-weight:700; }

.lede{
  font-size:1.125rem;
  line-height:1.8;
  color:var(--mist);
  max-width:60ch;
}

.num,
.card__num,
.foot-contact__value{
  font-variant-numeric:tabular-nums;
}

::selection{
  background:var(--gold);
  color:var(--deep);
}

:focus-visible{
  outline:3px solid var(--gold);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- 4. 布局基础 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{
  padding-block:96px;
}

.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}

.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;
}

.rule{
  height:1px;
  border:0;
  background:var(--line-sky);
}

.rail{
  position:absolute;
  top:0;
  bottom:0;
  left:0;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--sky),rgba(14,107,214,.12));
}

.rail--right{ left:auto; right:0; }

.visually-hidden{
  position:absolute;
  width:1px; height:1px;
  margin:-1px; padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

/* ---------- 5. 小标与正文量 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--sky);
}

.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
}

.eyebrow--bare::before{ display:none; }

.prose{
  max-width:68ch;
}

.prose p + p{ margin-top:1.1em; }

.prose h2{ margin-top:2.2em; margin-bottom:.6em; }
.prose h3{ margin-top:1.6em; margin-bottom:.5em; }

.prose ul,
.prose ol{
  list-style:disc;
  padding-left:1.4em;
  margin-block:.8em;
}

.prose ol{ list-style:decimal; }

.prose li{ margin-block:.35em; line-height:1.7; }

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-family:var(--font-display);
  font-size:.9375rem;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
  transition:transform .18s var(--ease-hover),
             background .18s var(--ease-hover),
             color .18s var(--ease-hover),
             border-color .18s var(--ease-hover),
             box-shadow .18s var(--ease-hover);
}

.btn:hover{ transform:translateY(-2px); }

.btn--gold{
  background:var(--gold);
  color:var(--deep);
  box-shadow:0 6px 18px rgba(240,166,43,.32);
}
.btn--gold:hover{ background:var(--gold-lift); }

.btn--sky{
  background:var(--sky);
  color:var(--snow);
  box-shadow:0 6px 18px rgba(14,107,214,.26);
}
.btn--sky:hover{ background:var(--sky-lift); }

.btn--ghost{
  background:transparent;
  border-color:rgba(14,107,214,.36);
  color:var(--sky);
}
.btn--ghost:hover{ background:rgba(14,107,214,.08); }

.btn--light{
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.3);
  color:var(--snow);
}
.btn--light:hover{ background:rgba(255,255,255,.24); }

.btn--sm{
  padding:9px 18px;
  font-size:.875rem;
}

/* ---------- 7. 状态胶囊 ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--radius-pill);
  font-size:.8125rem;
  font-weight:700;
  background:var(--pale);
  color:var(--deep);
  white-space:nowrap;
}

.chip--gold{ background:var(--sand); color:#8A5A05; }
.chip--grass{ background:rgba(31,122,90,.12); color:var(--grass); }
.chip--red{ background:rgba(192,57,43,.1); color:var(--saffron); }

/* ---------- 8. 卡片 ---------- */
.card{
  position:relative;
  background:var(--snow);
  border:1px solid var(--line-sky);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:transform .18s var(--ease-hover),
             box-shadow .18s var(--ease-hover),
             border-color .18s var(--ease-hover);
}

.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lift);
  border-color:rgba(14,107,214,.28);
}

.card__head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  margin-bottom:12px;
}

.card__title{
  font-family:var(--font-display);
  font-size:1.15rem;
  font-weight:700;
  line-height:1.35;
  color:var(--deep);
}

.card__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:.875rem;
  color:var(--mist);
}

.card__num{
  margin-left:auto;
  font-size:1.5rem;
  font-weight:700;
  color:var(--sky);
  text-align:right;
  line-height:1;
}

/* ---------- 9. 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-media);
  background:
    radial-gradient(120% 90% at 20% 0%, #E7F1FE 0%, rgba(231,241,254,0) 60%),
    linear-gradient(160deg,#D8E8FC 0%,#EDF5FF 46%,#FFF3DE 100%);
  isolation:isolate;
}

.media > img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .42s var(--ease-out);
}

.media:hover > img{ transform:scale(1.02); }

.media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(14,107,214,.08),rgba(10,46,92,.2));
  pointer-events:none;
}

.media--hero{ aspect-ratio:16/9; }
.media--wide{ aspect-ratio:21/9; }
.media--std{ aspect-ratio:4/3; }
.media--tall{ aspect-ratio:3/4; }
.media--square{ aspect-ratio:1/1; }

.media__caption{
  position:absolute;
  left:16px;
  bottom:14px;
  z-index:2;
  font-size:.8125rem;
  font-weight:700;
  color:var(--snow);
  text-shadow:0 1px 8px rgba(10,46,92,.5);
}

/* ---------- 10. 滚动显现 ---------- */
[data-reveal="shown"]{
  animation:rise .6s var(--ease-out) both;
}

@keyframes rise{
  from{ opacity:0; transform:translateY(16px); }
  to{ opacity:1; transform:none; }
}

/* ---------- 11. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-70px;
  z-index:200;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  background:var(--deep);
  color:var(--snow);
  font-size:.875rem;
  font-weight:700;
  text-decoration:none;
  transition:top .2s var(--ease-out);
}

.skip-link:focus{ top:12px; }

/* ---------- 12. 头部外壳 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:90;
  width:100%;
}

/* 公告条 */
.notice-rail{
  height:44px;
  overflow:hidden;
  background:var(--sand);
  box-shadow:inset 0 -1px 0 rgba(240,166,43,.38);
  color:var(--deep);
  transition:height .28s var(--ease-out), opacity .2s var(--ease-out);
}

html[data-scrolled="true"] .notice-rail{
  height:0;
  opacity:0;
}

.notice-rail__inner{
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
}

.notice-rail__mark{
  flex:0 0 auto;
  width:2px;
  height:16px;
  border-radius:2px;
  background:var(--sky);
}

.notice-rail__text{
  font-size:.875rem;
  line-height:1.5;
  font-weight:500;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.notice-rail__link{
  margin-left:auto;
  flex:0 0 auto;
  font-size:.8125rem;
  font-weight:700;
  color:#8A5A05;
  text-decoration:none;
  border-bottom:1px solid rgba(138,90,5,.35);
  padding-bottom:1px;
  transition:color .18s var(--ease-hover), border-color .18s var(--ease-hover);
}

.notice-rail__link:hover{
  color:var(--saffron);
  border-color:var(--saffron);
}

/* 命令栏 */
.command-bar{
  position:relative;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  box-shadow:inset 0 -1px 0 var(--line-sky);
  transition:background .28s var(--ease-out),
             box-shadow .28s var(--ease-out);
}

.command-bar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:84px;
  transition:min-height .28s var(--ease-out);
}

html[data-scrolled="true"] .command-bar{
  background:var(--deep);
  box-shadow:0 10px 30px rgba(10,46,92,.3);
}

html[data-scrolled="true"] .command-bar__inner{
  min-height:64px;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--deep);
}

.brand__mark{
  display:flex;
  align-items:flex-end;
  gap:3px;
  width:36px;
  height:36px;
  padding:7px;
  border-radius:var(--radius-input);
  background:linear-gradient(150deg,var(--sky),var(--deep));
  flex:0 0 auto;
}

.brand__mark span{
  flex:1;
  border-radius:2px;
  background:var(--gold);
}

.brand__mark span:nth-child(1){ height:58%; }
.brand__mark span:nth-child(2){ height:100%; }
.brand__mark span:nth-child(3){ height:76%; }

.brand__text{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}

.brand__name{
  font-family:var(--font-display);
  font-size:1.15rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--deep);
  transition:color .28s var(--ease-out);
}

.brand__tagline{
  font-size:.75rem;
  letter-spacing:.08em;
  color:var(--mist);
  transition:color .28s var(--ease-out);
}

html[data-scrolled="true"] .brand__name{ color:var(--snow); }
html[data-scrolled="true"] .brand__tagline{ color:rgba(255,255,255,.66); }

/* 索引导航 */
.nav{
  flex:1 1 auto;
  display:flex;
  justify-content:flex-end;
  min-width:0;
}

.nav__list{
  counter-reset:navi;
  display:flex;
  align-items:center;
  gap:4px;
}

.nav__list a{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:9px 13px;
  border-radius:var(--radius-pill);
  font-size:.9375rem;
  font-weight:500;
  line-height:1.2;
  text-decoration:none;
  color:var(--ink);
  white-space:nowrap;
  transition:color .18s var(--ease-hover), background .18s var(--ease-hover);
}

.nav__list a::before{
  counter-increment:navi;
  content:counter(navi,decimal-leading-zero);
  font-size:.6875rem;
  font-weight:700;
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
  color:var(--mist);
  transition:color .18s var(--ease-hover);
}

.nav__list a:hover{
  color:var(--sky);
  background:rgba(14,107,214,.08);
}

.nav__list a:hover::before{ color:var(--gold); }

.nav__list a[aria-current="page"]{
  color:var(--deep);
  background:var(--pale);
  font-weight:700;
}

.nav__list a[aria-current="page"]::before{ color:var(--sky); }

.nav__list a[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:13px;
  right:13px;
  bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
}

html[data-scrolled="true"] .nav__list a{ color:rgba(255,255,255,.84); }
html[data-scrolled="true"] .nav__list a::before{ color:rgba(255,255,255,.42); }
html[data-scrolled="true"] .nav__list a:hover{
  color:var(--snow);
  background:rgba(255,255,255,.12);
}
html[data-scrolled="true"] .nav__list a:hover::before{ color:var(--gold); }
html[data-scrolled="true"] .nav__list a[aria-current="page"]{
  color:var(--deep);
  background:var(--gold);
}
html[data-scrolled="true"] .nav__list a[aria-current="page"]::before{ color:rgba(10,46,92,.6); }
html[data-scrolled="true"] .nav__list a[aria-current="page"]::after{ display:none; }

/* 命令栏右侧 */
.command-bar__side{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
  flex:0 0 auto;
}

.status-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 15px 7px 12px;
  border-radius:var(--radius-pill);
  background:var(--sand);
  border:1px solid rgba(240,166,43,.42);
  color:var(--deep);
  font-size:.8125rem;
  font-weight:700;
  text-decoration:none;
  white-space:nowrap;
  transition:background .18s var(--ease-hover),
             border-color .18s var(--ease-hover),
             color .18s var(--ease-hover),
             transform .18s var(--ease-hover);
}

.status-chip:hover{ transform:translateY(-1px); }

.status-chip__dot{
  flex:0 0 auto;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--grass);
  box-shadow:0 0 0 4px rgba(31,122,90,.14);
}

html[data-scrolled="true"] .status-chip{
  background:rgba(255,255,255,.1);
  border-color:rgba(240,166,43,.5);
  color:var(--snow);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(14,107,214,.28);
  background:var(--snow);
  color:var(--deep);
  font-size:.8125rem;
  font-weight:700;
  cursor:pointer;
  transition:background .18s var(--ease-hover),
             border-color .18s var(--ease-hover),
             color .18s var(--ease-hover);
}

.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:16px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .24s var(--ease-out), top .24s var(--ease-out);
}

.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);
}

html[data-scrolled="true"] .nav-toggle{
  background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.3);
  color:var(--snow);
}

/* ---------- 13. 页脚 ---------- */
.site-foot{
  position:relative;
  margin-top:96px;
  background:var(--deep);
  color:rgba(228,237,249,.82);
  overflow:hidden;
}

.site-foot::after{
  content:"";
  position:absolute;
  left:-10%;
  bottom:-180px;
  width:60%;
  height:360px;
  background:radial-gradient(closest-side,rgba(14,107,214,.35),rgba(14,107,214,0));
  pointer-events:none;
}

.foot-flags{
  position:relative;
  z-index:1;
  height:22px;
  background-image:repeating-linear-gradient(
    90deg,
    rgba(240,166,43,.5) 0 2px,
    rgba(240,166,43,0) 2px 46px
  );
}

.foot-main{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,.72fr));
  gap:48px 32px;
  padding:56px 0 44px;
}

.foot-brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}

.foot-brand__mark{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--snow);
}

.foot-brand__name{
  font-family:var(--font-display);
  font-size:1.25rem;
  font-weight:800;
  letter-spacing:-.01em;
}

.foot-brand__line{
  font-size:.9375rem;
  color:rgba(228,237,249,.66);
  max-width:26ch;
}

.foot-col__title{
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--gold);
  margin-bottom:16px;
}

.foot-links{
  display:grid;
  gap:11px;
}

.foot-links a{
  display:inline-block;
  font-size:.9375rem;
  color:rgba(228,237,249,.78);
  text-decoration:none;
  transition:color .18s var(--ease-hover), transform .18s var(--ease-hover);
}

.foot-links a:hover{
  color:var(--snow);
  transform:translateX(3px);
}

.foot-contact{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:18px 28px;
  padding:28px 0;
  border-top:1px solid var(--line-light);
  border-bottom:1px solid var(--line-light);
}

.foot-contact__item{
  display:flex;
  flex-direction:column;
  gap:4px;
}

.foot-contact__label{
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--gold);
}

.foot-contact__value{
  font-size:.9375rem;
  color:#E4EDF9;
  overflow-wrap:anywhere;
}

.foot-legal{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding:22px 0 44px;
  font-size:.8125rem;
  color:rgba(228,237,249,.6);
}

.foot-legal__note{ max-width:52ch; }

/* ---------- 14. 返回顶部 / 阅读进度 ---------- */
.to-top{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:70;
  display:grid;
  place-items:center;
  width:52px;
  height:52px;
  padding:0;
  border:0;
  border-radius:50%;
  background:var(--snow);
  box-shadow:var(--shadow-lift);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .24s var(--ease-out),
             transform .24s var(--ease-out),
             visibility .24s var(--ease-out);
}

.to-top[data-visible="true"]{
  opacity:1;
  visibility:visible;
  transform:none;
}

.to-top__ring{
  position:absolute;
  inset:0;
  border-radius:50%;
  background:conic-gradient(
    var(--gold) calc(var(--progress, 0) * 360deg),
    rgba(10,46,92,.1) 0deg
  );
}

.to-top__ring::after{
  content:"";
  position:absolute;
  inset:5px;
  border-radius:50%;
  background:var(--snow);
}

.to-top__arrow{
  position:relative;
  z-index:1;
  font-size:1rem;
  font-weight:700;
  line-height:1;
  color:var(--deep);
}

/* ---------- 15. 响应式 ---------- */
@media (max-width:1100px){
  .nav__list a{ padding:9px 10px; font-size:.875rem; }
  .nav__list a::before{ display:none; }
}

@media (max-width:960px){
  :root{ --gutter:20px; }

  .nav-toggle{ display:inline-flex; }

  .nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:block;
    padding:6px 0 18px;
    background:var(--deep);
    border-radius:0 0 var(--radius-card) var(--radius-card);
    box-shadow:0 24px 50px rgba(10,46,92,.32);
    visibility:hidden;
    opacity:0;
    transform:translateY(-8px);
    transition:opacity .22s var(--ease-out),
               transform .22s var(--ease-out),
               visibility .22s var(--ease-out);
  }

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

  .nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:0 16px;
  }

  .nav__list a,
  html[data-scrolled="true"] .nav__list a{
    display:flex;
    align-items:baseline;
    gap:10px;
    padding:13px 16px;
    border-radius:var(--radius-input);
    font-size:1.0625rem;
    color:rgba(255,255,255,.88);
    background:transparent;
  }

  .nav__list a::before,
  html[data-scrolled="true"] .nav__list a::before{
    display:inline;
    order:-1;
    color:rgba(240,166,43,.72);
  }

  .nav__list a::after,
  html[data-scrolled="true"] .nav__list a::after{ display:none; }

  .nav__list a[aria-current="page"],
  html[data-scrolled="true"] .nav__list a[aria-current="page"]{
    color:var(--snow);
    background:rgba(14,107,214,.42);
    box-shadow:inset 3px 0 0 var(--gold);
  }

  .command-bar__inner{ min-height:72px; }
  html[data-scrolled="true"] .command-bar__inner{ min-height:60px; }

  .section{ padding-block:72px; }

  .grid-2,
  .grid-3{ grid-template-columns:minmax(0,1fr); }

  .foot-main{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:36px 28px;
    padding:48px 0 36px;
  }
}

@media (max-width:640px){
  :root{ --gutter:16px; }

  body{ font-size:1rem; }

  .h1{ font-size:1.75rem; }
  .h2{ font-size:1.3rem; }

  .rail{ width:1px; }

  .notice-rail__text{ font-size:.8125rem; }
  .notice-rail__link{ display:none; }

  .brand__tagline{ display:none; }
  .brand__mark{ width:32px; height:32px; padding:6px; }
  .brand__name{ font-size:1.0625rem; }

  .status-chip__text{ display:none; }
  .status-chip{ padding:8px; }
  .status-chip__dot{ box-shadow:0 0 0 3px rgba(31,122,90,.16); }

  .section{ padding-block:64px; }

  .card{ padding:20px; }

  .foot-main{ grid-template-columns:minmax(0,1fr); }
  .foot-legal{ padding-bottom:36px; }
  .site-foot{ margin-top:64px; }

  .to-top{ right:16px; bottom:18px; width:46px; height:46px; }
}

/* ---------- 16. 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;
  }

  [data-reveal="shown"]{ animation:none; }
  .btn:hover{ transform:none; }
  .card:hover{ transform:none; }
  .media:hover > img{ transform:none; }
  .foot-links a:hover{ transform:none; }
  .to-top{ transition:opacity .001ms, visibility .001ms; transform:none; }
}