/* =========================================================
   牌乐门官网 · 共享样式 /assets/site.css
   夜墨底 + 索引卡米 + 暖金 / 朱红 / 青玉绿
   ========================================================= */

:root{
  --ink:#0A0F1E;
  --table:#131A30;
  --card:#F3EADA;
  --paper:#FBF7EE;
  --gold:#D8A93B;
  --gold-light:#F2CF78;
  --gold-line:#6B5423;
  --gold-deep:#8A6414;
  --vermilion:#C8402C;
  --jade:#2E9E88;
  --slate:#8695B4;
  --ink-on-card:#141A2C;
  --ink-soft:#4A5573;

  --container:1200px;
  --gutter:24px;

  --step-13:13px;
  --step-17:17px;
  --step-21:21px;
  --step-26:26px;
  --step-34:34px;
  --step-46:46px;
  --step-64:64px;
  --step-104:104px;

  --font-sans:"Source Han Sans SC","Noto Sans CJK SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:128px;
}
body{
  margin:0;
  min-height:100%;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 82% -8%, rgba(107,84,35,.20), transparent 62%),
    radial-gradient(900px 600px at 4% 8%, rgba(46,158,136,.07), transparent 58%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:var(--step-17);
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:3;
  pointer-events:none;
  opacity:.5;
  background-image:radial-gradient(rgba(216,169,59,.10) .6px, transparent .6px);
  background-size:4px 4px;
}
img,svg{max-width:100%}
img{height:auto;border-style:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
a{color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.16;letter-spacing:-.01em}
hr{border:0;border-top:1px solid var(--gold-line);margin:0}
:focus-visible{
  outline:2px solid var(--gold-light);
  outline-offset:3px;
  border-radius:2px;
}

/* ---------- 跳至主内容 ---------- */
.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:200;
  transform:translateY(-160%);
  padding:10px 18px;
  background:var(--jade);
  color:#04211C;
  font-size:var(--step-13);
  letter-spacing:.12em;
  text-decoration:none;
  border:1px solid var(--gold-light);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 阅读进度 ---------- */
.read-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  z-index:150;
  background:rgba(107,84,35,.45);
  pointer-events:none;
}
.read-progress__bar{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));
}

/* ---------- 顶部粘性区 ---------- */
.site-top{
  position:sticky;
  top:0;
  z-index:90;
}

/* ---------- 入口提示带 ---------- */
.entry-band{
  background:var(--table);
  border-bottom:1px solid var(--gold);
}
.entry-band__inner{
  width:min(100% - 2 * var(--gutter), var(--container));
  margin-inline:auto;
  min-height:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-block:6px;
}
.entry-band__text{
  font-size:var(--step-13);
  line-height:1.6;
  color:var(--slate);
  letter-spacing:.02em;
}
.entry-band__brief{display:none}
.entry-band__actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.entry-band__link{
  font-size:var(--step-13);
  letter-spacing:.06em;
  color:var(--gold);
  text-decoration:none;
  border-bottom:1px solid rgba(216,169,59,.5);
  padding-bottom:1px;
  white-space:nowrap;
}
.entry-band__link:hover{color:var(--gold-light);border-bottom-color:var(--gold-light)}
.entry-band__close{
  width:26px;height:26px;
  display:grid;place-items:center;
  background:transparent;
  border:1px solid var(--gold-line);
  color:var(--slate);
  cursor:pointer;
  line-height:1;
  font-size:15px;
}
.entry-band__close:hover{border-color:var(--gold);color:var(--gold-light)}
.entry-band[hidden]{display:none}

/* ---------- 头部 ---------- */
.site-header{
  background:rgba(10,15,30,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--gold-line);
}
.site-header__inner{
  position:relative;
  width:min(100% - 2 * var(--gutter), var(--container));
  margin-inline:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:74px;
  padding-block:10px;
}

.brand-lockup__link{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--paper);
}
.brand-lockup__mark{
  width:40px;height:40px;
  flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--table);
  border:1px solid var(--gold-line);
  color:var(--gold);
  font-size:20px;
  font-weight:800;
  line-height:1;
}
.brand-lockup__text{display:block}
.brand-lockup__name{
  display:block;
  font-size:var(--step-17);
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.3;
}
.brand-lockup__sig{
  display:block;
  font-size:var(--step-13);
  letter-spacing:.14em;
  color:var(--slate);
  line-height:1.4;
}
.brand-lockup__link:hover .brand-lockup__name{color:var(--gold-light)}
.brand-lockup__link:hover .brand-lockup__mark{border-color:var(--gold)}

/* ---------- 导航簇 ---------- */
.nav-cluster{
  display:flex;
  align-items:center;
  gap:12px;
}

/* 站内条目过滤 */
.site-filter{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  padding:4px 10px;
  border:1px solid var(--gold-line);
  background:rgba(19,26,48,.82);
  border-radius:999px;
}
.site-filter__label{
  font-size:11px;
  letter-spacing:.12em;
  color:var(--slate);
  white-space:nowrap;
}
.site-filter__input{
  width:112px;
  background:transparent;
  border:0;
  outline:none;
  font-size:var(--step-13);
  color:var(--paper);
  padding:4px 0;
}
.site-filter__input::placeholder{color:rgba(134,149,180,.7)}
.site-filter__empty{
  position:absolute;
  top:calc(100% + 8px);
  left:0;
  min-width:180px;
  padding:8px 12px;
  background:var(--table);
  border:1px solid var(--gold-line);
  font-size:var(--step-13);
  color:var(--gold-light);
  z-index:20;
}
.site-filter__empty[hidden]{display:none}

/* 悬浮胶囊导航 */
.nav-capsule{
  position:relative;
  display:flex;
  align-items:center;
  padding:4px;
  background:rgba(19,26,48,.92);
  border:1px solid var(--gold-line);
  border-radius:999px;
}
.nav-capsule__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  position:relative;
  display:block;
  padding:9px 14px;
  font-size:14px;
  line-height:1.4;
  color:var(--paper);
  text-decoration:none;
  border-radius:999px;
  white-space:nowrap;
}
.nav-link:hover{background:rgba(242,207,120,.10);color:var(--gold-light)}
.nav-link[aria-current="page"]{color:var(--gold-light)}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--jade);
}
.nav-capsule__current{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 16px;
  background:transparent;
  border:0;
  border-radius:999px;
  color:var(--gold-light);
  font-size:14px;
  letter-spacing:.02em;
  cursor:pointer;
}
.nav-capsule__chev{
  width:7px;height:7px;
  border-right:1px solid var(--gold);
  border-bottom:1px solid var(--gold);
  transform:rotate(45deg) translate(-1px,-1px);
}
.nav-cluster .pill-cta{
  display:inline-flex;
  align-items:center;
  padding:10px 18px;
  background:var(--jade);
  border:1px solid var(--jade);
  border-radius:999px;
  color:#04211C;
  font-size:14px;
  font-weight:600;
  letter-spacing:.04em;
  text-decoration:none;
  white-space:nowrap;
}
.nav-cluster .pill-cta:hover{background:var(--gold-light);border-color:var(--gold-light);color:#241B04}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  background:rgba(19,26,48,.92);
  border:1px solid var(--gold-line);
  border-radius:999px;
  color:var(--paper);
  font-size:14px;
  cursor:pointer;
}
.nav-toggle__label{letter-spacing:.08em}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{display:block;height:1px;background:var(--gold)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle:hover{border-color:var(--gold)}

/* ---------- 通用排版与容器 ---------- */
.container{
  width:min(100% - 2 * var(--gutter), var(--container));
  margin-inline:auto;
}
.prose{max-width:34em}
.lede{
  font-size:clamp(18px,2vw,26px);
  font-weight:300;
  line-height:1.62;
  color:var(--slate);
}
.section--paper .lede{color:var(--ink-soft)}
.display-1{
  font-size:clamp(44px,7vw,104px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.04;
}
.display-2{
  font-size:clamp(30px,4.2vw,64px);
  font-weight:800;
  letter-spacing:-.015em;
}
.title-3{
  font-size:clamp(21px,2vw,26px);
  font-weight:600;
  letter-spacing:0;
}
.mono{font-family:var(--font-mono);font-weight:500;font-size:var(--step-17);letter-spacing:.02em}
.index-label{
  font-family:var(--font-mono);
  font-size:var(--step-13);
  letter-spacing:.12em;
  color:var(--slate);
}
.muted{color:var(--slate)}
.empty-msg{font-size:var(--step-13);letter-spacing:.08em;color:var(--slate)}
.stack{display:flex;flex-direction:column;gap:16px}
.stack--sm{gap:8px}
.stack--lg{gap:40px}

/* ---------- 章节 ---------- */
.section{
  padding-block:clamp(56px,8vw,120px);
  position:relative;
}
.section--table{
  background:var(--table);
  border-block:1px solid var(--gold-line);
}
.section--paper{
  background:var(--card);
  color:var(--ink-on-card);
  border-block:1px solid var(--gold-line);
}
.section--edge{border-block:1px solid var(--gold-line)}
.section-index{
  display:inline-block;
  font-family:var(--font-mono);
  font-weight:500;
  font-size:var(--step-13);
  letter-spacing:.12em;
  color:var(--slate);
  transition:color .32s var(--ease);
}
.section[data-inview="true"] .section-index{color:var(--gold)}
.section--paper .section-index{color:var(--gold-deep)}
.section--paper .muted{color:var(--ink-soft)}

/* ---------- 栅格 ---------- */
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gutter);
}
.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-12{grid-column:span 12}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);
  color:var(--ink-on-card);
  border:1px solid var(--gold-line);
  padding:24px;
}
.card--paper{
  background:rgba(251,247,238,.72);
  color:var(--ink-on-card);
}
.card--dark{
  background:var(--table);
  color:var(--paper);
}
.card__foot{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--gold-line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 20px;
  align-items:center;
}

/* ---------- 横向主题带 ---------- */
.band{
  background:var(--table);
  border-block:1px solid var(--gold-line);
  padding-block:32px;
}
.band__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  margin-bottom:18px;
}
.band__track{
  display:flex;
  gap:16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  padding-bottom:12px;
}
.band__track::-webkit-scrollbar{height:4px}
.band__track::-webkit-scrollbar-thumb{background:var(--gold-line)}
.band__item{
  flex:0 0 clamp(230px,30vw,340px);
  scroll-snap-align:start;
  background:var(--card);
  color:var(--ink-on-card);
  border:1px solid var(--gold-line);
  padding:22px;
  min-height:180px;
}
.band__item--lead{
  background:var(--vermilion);
  color:var(--paper);
  border-color:var(--vermilion);
}
.band__item--lead .index-label,
.band__item--lead .muted{color:rgba(251,247,238,.82)}
.band__item[data-lead-moved="true"]{transform:translateX(8px)}

/* ---------- 表格 ---------- */
.data-table{
  width:100%;
  border-collapse:collapse;
  background:var(--card);
  color:var(--ink-on-card);
  font-size:15px;
}
.data-table th,
.data-table td{
  border:1px solid var(--gold-line);
  padding:10px 14px;
  min-height:44px;
  text-align:left;
  vertical-align:top;
}
.data-table thead th{
  background:rgba(107,84,35,.16);
  font-weight:700;
  letter-spacing:.04em;
}
.data-table tbody th{
  font-family:var(--font-mono);
  font-weight:500;
  white-space:nowrap;
}

/* ---------- 折叠块 ---------- */
.accordion{border-top:1px solid var(--gold-line)}
.accordion__item{border-bottom:1px solid var(--gold-line)}
.accordion__heading{margin:0;font-size:inherit;font-weight:inherit;letter-spacing:0}
.accordion__trigger{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 0;
  background:transparent;
  border:0;
  color:inherit;
  font-size:var(--step-17);
  font-weight:600;
  text-align:left;
  cursor:pointer;
}
.accordion__trigger:hover{color:var(--gold-light)}
.section--paper .accordion__trigger:hover{color:var(--vermilion)}
.accordion__mark{
  flex:0 0 auto;
  width:14px;height:14px;
  position:relative;
}
.accordion__mark::before,
.accordion__mark::after{
  content:"";
  position:absolute;
  background:var(--gold);
  transition:transform .18s var(--ease),opacity .18s var(--ease);
}
.accordion__mark::before{left:0;right:0;top:6px;height:1px}
.accordion__mark::after{top:0;bottom:0;left:6px;width:1px}
.accordion__item[data-open="true"] .accordion__mark::after{transform:scaleY(0);opacity:0}
.accordion__panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .18s var(--ease);
}
.accordion__panel[data-open="true"]{grid-template-rows:1fr}
.accordion__inner{overflow:hidden}
.accordion__body{padding-bottom:20px;max-width:34em}

/* ---------- 图片容器 ---------- */
.frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:
    linear-gradient(140deg,rgba(19,26,48,.98),rgba(10,15,30,.98));
  border:1px solid var(--gold-line);
  width:100%;
}
.frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    repeating-linear-gradient(0deg,rgba(216,169,59,.06) 0 1px,transparent 1px 6px),
    linear-gradient(180deg,rgba(10,15,30,0) 40%,rgba(10,15,30,.42) 100%);
  opacity:.9;
}
.frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.82);
}
.frame--3-2{aspect-ratio:3/2}
.frame--4-3{aspect-ratio:4/3}
.frame--8-3{aspect-ratio:8/3}
.frame--1-1{aspect-ratio:1/1}
.card .frame,
.section--paper .frame{
  border-color:var(--gold-line);
  background:#E7DCC6;
}
.card .frame::after,
.section--paper .frame::after{
  background:repeating-linear-gradient(0deg,rgba(107,84,35,.07) 0 1px,transparent 1px 5px);
  opacity:1;
}

/* ---------- 标记与链接 ---------- */
.tag{
  display:inline-block;
  padding:4px 10px;
  border:1px solid var(--gold-line);
  font-size:var(--step-13);
  letter-spacing:.08em;
  color:var(--slate);
}
.stamp{
  display:inline-block;
  padding:4px 10px;
  border:1px solid var(--vermilion);
  background:rgba(200,64,44,.12);
  color:var(--vermilion);
  font-family:var(--font-mono);
  font-size:var(--step-13);
  font-weight:500;
  letter-spacing:.08em;
}
.stamp[data-stamp]{
  transform:scale(.86);
  opacity:0;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.stamp[data-stamp][data-stamped="true"]{transform:none;opacity:1}
.link-jade{
  color:var(--jade);
  text-decoration:none;
  border-bottom:1px solid rgba(46,158,136,.5);
  padding-bottom:1px;
}
.link-jade:hover{color:var(--gold-light);border-bottom-color:var(--gold-light)}
.section--paper .link-jade{color:#1F7A69}
.section--paper .link-jade:hover{color:var(--vermilion);border-bottom-color:var(--vermilion)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 20px;
  background:transparent;
  border:1px solid var(--gold-line);
  border-radius:0;
  color:var(--paper);
  font-size:14px;
  letter-spacing:.06em;
  text-decoration:none;
  cursor:pointer;
}
.btn:hover{border-color:var(--gold);color:var(--gold-light)}
.btn--ghost{background:rgba(19,26,48,.7)}
.btn--jade{
  background:var(--jade);
  border-color:var(--jade);
  color:#04211C;
  font-weight:600;
}
.btn--jade:hover{background:var(--gold-light);border-color:var(--gold-light);color:#241B04}
.btn--quiet{border-style:dashed;color:var(--slate)}
.btn--quiet:hover{color:var(--gold-light)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-block:18px;
  font-size:var(--step-13);
  letter-spacing:.12em;
  color:var(--slate);
  border-bottom:1px solid var(--gold-line);
}
.breadcrumb a{
  color:var(--slate);
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.breadcrumb a:hover{color:var(--gold-light);border-bottom-color:var(--gold-line)}
.breadcrumb__sep{color:var(--gold-line)}
.section--paper .breadcrumb{color:var(--ink-soft);border-bottom-color:rgba(107,84,35,.5)}
.section--paper .breadcrumb a{color:var(--ink-soft)}
.section--paper .breadcrumb a:hover{color:var(--gold-deep)}

/* ---------- 显现 ---------- */
html[data-js="true"] [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
html[data-js="true"] [data-reveal][data-revealed="true"]{
  opacity:1;
  transform:none;
}
.is-filtered-out{display:none !important}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(56px,8vw,120px);
  background:var(--ink);
  border-top:1px solid var(--gold-line);
}
.site-footer__band{
  background:var(--table);
  border-bottom:1px solid var(--gold-line);
}
.site-footer__band-inner{
  padding-block:40px;
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gutter);
  align-items:center;
}
.site-footer__kicker{
  grid-column:span 12;
  font-family:var(--font-mono);
  font-size:var(--step-13);
  letter-spacing:.12em;
  color:var(--gold);
  margin-bottom:10px;
}
.site-footer__motto{
  grid-column:span 7;
  font-size:clamp(21px,2.6vw,34px);
  font-weight:300;
  line-height:1.5;
  color:var(--paper);
}
.site-footer__quick{
  grid-column:span 5;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}
.site-footer__grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
  padding-block:56px;
}
.site-footer__col{min-width:0}
.site-footer__title{
  font-size:var(--step-13);
  font-weight:500;
  letter-spacing:.12em;
  color:var(--slate);
  padding-bottom:10px;
  margin-bottom:16px;
  border-bottom:1px solid var(--gold-line);
}
.site-footer__title-link{text-decoration:none;color:inherit}
.site-footer__title-link:hover{color:var(--gold-light)}
.site-footer__list{display:flex;flex-direction:column;gap:10px}
.site-footer__item{
  font-size:15px;
  line-height:1.7;
  color:var(--slate);
}
.site-footer__item--row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.site-footer__text{color:var(--paper);font-size:15px;word-break:break-all}
.site-footer__link{
  display:inline-block;
  margin-top:16px;
  font-size:var(--step-13);
  letter-spacing:.08em;
  color:var(--jade);
  text-decoration:none;
  border-bottom:1px solid rgba(46,158,136,.5);
}
.site-footer__link:hover{color:var(--gold-light);border-bottom-color:var(--gold-light)}
.site-footer__links{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px}
.site-footer__links .site-footer__link{margin-top:0}
.copy-btn{
  flex:0 0 auto;
  padding:4px 10px;
  background:transparent;
  border:1px solid var(--gold-line);
  color:var(--slate);
  font-size:11px;
  letter-spacing:.1em;
  cursor:pointer;
}
.copy-btn:hover{border-color:var(--gold);color:var(--gold-light)}
.copy-btn[data-copied="true"]{
  border-color:var(--jade);
  color:var(--jade);
}
.site-footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 28px;
  padding-block:26px;
  border-top:1px solid var(--gold-line);
}
.legal-links{display:flex;flex-wrap:wrap;gap:20px}
.legal-link{
  font-size:var(--step-13);
  letter-spacing:.1em;
  color:var(--slate);
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.legal-link:hover{color:var(--gold-light);border-bottom-color:var(--gold-line)}
.site-footer__icp{
  font-family:var(--font-mono);
  font-size:var(--step-13);
  letter-spacing:.06em;
  color:var(--slate);
}
.site-footer__note{
  font-size:var(--step-13);
  line-height:1.7;
  color:var(--slate);
  max-width:52em;
}
.site-footer__note + .site-footer__note{margin-left:auto;text-align:right;white-space:nowrap}

/* =========================================================
   响应式
   ========================================================= */

@media (max-width:1180px){
  .site-filter{display:none}
}

@media (max-width:1024px){
  .col-4,.col-6{grid-column:span 6}
  .col-5,.col-7,.col-8{grid-column:span 12}
  .site-footer__motto{grid-column:span 12}
  .site-footer__quick{grid-column:span 12;justify-content:flex-start}
  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:959px){
  html{scroll-padding-top:104px}
  .site-header__inner{min-height:64px}
  .nav-toggle{display:inline-flex}
  .nav-cluster{gap:8px}
  .nav-cluster .pill-cta{padding:9px 14px;font-size:13px}

  .nav-capsule{
    position:absolute;
    top:calc(100% + 8px);
    left:0;
    right:0;
    display:none;
    border-radius:16px;
    padding:10px;
    background:rgba(13,19,38,.99);
    border:1px solid var(--gold-line);
    box-shadow:0 18px 40px rgba(0,0,0,.5);
  }
  .nav-capsule[data-open="true"]{display:block}
  .nav-capsule__current{display:none}
  .nav-capsule__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .nav-capsule__list li + li{border-top:1px solid rgba(107,84,35,.45)}
  .nav-link{
    padding:14px 12px;
    border-radius:8px;
    font-size:16px;
  }
  .nav-link[aria-current="page"]::after{
    left:12px;right:auto;bottom:12px;width:22px;height:2px;
  }

  .entry-band__text{display:none}
  .entry-band__brief{
    display:block;
    font-size:12px;
    line-height:1.5;
    color:var(--slate);
    letter-spacing:.02em;
  }
  .entry-band__inner{min-height:38px;gap:10px}

  .band__track{scroll-snap-type:x proximity}
  .data-table{font-size:14px}
  .data-table th,.data-table td{padding:8px 10px}
}

@media (max-width:640px){
  :root{--gutter:18px}
  .col-4,.col-6{grid-column:span 12}
  .brand-lockup__mark{width:34px;height:34px;font-size:17px}
  .brand-lockup__name{font-size:15px}
  .brand-lockup__sig{font-size:11px;letter-spacing:.1em}
  .nav-cluster .pill-cta{display:none}
  .site-footer__grid{
    grid-template-columns:minmax(0,1fr);
    gap:36px;
    padding-block:44px;
  }
  .site-footer__note + .site-footer__note{margin-left:0;text-align:left;white-space:normal}
  .site-footer__band-inner{padding-block:32px}
  .band__item{flex:0 0 78vw}
}

/* =========================================================
   动效降级
   ========================================================= */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html[data-js="true"] [data-reveal]{
    opacity:1;
    transform:none;
  }
  .stamp[data-stamp]{transform:none;opacity:1}
  .band__item[data-lead-moved="true"]{transform:none}
}