/* ==========================================================================
   wonderland-allwin.com.cn — /assets/site.css
   共享层：reset / 变量 / 中文排版 / 页头 / 页脚 / 通用组件
   页面专属布局请写入各自页面 CSS
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --ink:#0F2A24;
  --ink-deep:#0A1613;
  --moss:#2F6B57;
  --stone:#4A4F4B;
  --cream:#F5F2EA;
  --gold:#C9A227;
  --gold-soft:#E8D9A8;
  --coral:#E86A4A;
  --mist:#7FA6B8;

  --ink-08:rgba(15,42,36,.08);
  --ink-14:rgba(15,42,36,.14);
  --ink-40:rgba(15,42,36,.4);
  --gold-24:rgba(201,162,39,.24);
  --gold-45:rgba(201,162,39,.45);
  --glass-light:rgba(245,242,234,.10);
  --glass-line:rgba(245,242,234,.18);
  --cream-70:rgba(245,242,234,.70);
  --cream-52:rgba(245,242,234,.52);

  --font-head:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,"Segoe UI",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Avenir Next","Helvetica Neue",Helvetica,Arial,system-ui,sans-serif;

  --fs-h1:clamp(2.2rem,5vw,4.6rem);
  --fs-h2:clamp(1.6rem,3vw,2.4rem);
  --fs-h3:1.25rem;
  --fs-body:1.0625rem;
  --fs-small:.875rem;

  --gutter:clamp(1.25rem,4vw,3.5rem);
  --shell:1280px;
  --header-h:76px;

  --r-xs:8px;
  --r-sm:12px;
  --r-md:20px;
  --r-lg:30px;
  --r-pill:999px;

  --shadow-soft:0 22px 48px -32px rgba(10,22,19,.55);
  --shadow-deep:0 30px 60px -34px rgba(10,22,19,.7);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset & base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 18px);
}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font-head);
  font-weight:800;
  letter-spacing:.04em;
  line-height:1.16;
  color:var(--ink);
}
h1{font-size:var(--fs-h1)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);font-weight:700;letter-spacing:.03em}
p{margin:0 0 1rem}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
::selection{background:var(--gold);color:var(--ink-deep)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}
main{display:block}

/* ---------- 3. 排版工具 ---------- */
.lead{
  font-size:clamp(1.05rem,1.6vw,1.3rem);
  line-height:1.7;
  color:var(--stone);
  max-width:66ch;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-family:var(--font-num);
  font-size:.74rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:.9rem;
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:linear-gradient(90deg,var(--gold),rgba(201,162,39,0));
}
.section-head{margin-bottom:clamp(1.75rem,3.5vw,3rem);max-width:78ch}
.section-head__title{font-size:var(--fs-h2);margin-bottom:.7rem}
.section-head__lead{color:var(--stone);max-width:70ch;margin:0}
.hairline{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,rgba(201,162,39,0),var(--gold-24),rgba(201,162,39,0));
}

/* ---------- 4. 布局 ---------- */
.container{
  width:min(100% - var(--gutter) * 2,var(--shell));
  margin-inline:auto;
}
.container--wide{width:min(100% - var(--gutter) * 2,1440px)}
.section{padding-block:clamp(3rem,7vw,6rem)}
.section--tight{padding-block:clamp(2rem,4vw,3.25rem)}
.section--dark{background:var(--ink);color:var(--cream-70)}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:var(--cream)}
.section--dark .section-head__lead,.section--dark .lead,.section--dark .prose{color:rgba(245,242,234,.78)}
.section--dark .stat__value{color:var(--cream)}
.section--dark .stat__label{color:var(--cream-52)}
.section--dark .chip{border-color:var(--glass-line);color:var(--cream-70);background:rgba(245,242,234,.06)}
.section--moss{background:var(--moss);color:var(--cream)}
.section--moss h1,.section--moss h2,.section--moss h3{color:var(--cream)}
.section--gold{background:linear-gradient(180deg,rgba(232,217,168,.42),rgba(245,242,234,0))}
.section--paper{background:#fff}

.auto-grid{
  display:grid;
  gap:clamp(1rem,2vw,1.5rem);
  grid-template-columns:repeat(auto-fit,minmax(var(--min,260px),1fr));
}
.bento{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(.75rem,1.6vw,1.25rem);
}
.bento__cell{grid-column:1 / -1;min-width:0}
.bento__cell--tall{min-height:100%}

/* ---------- 5. 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  padding:.8rem 1.5rem;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-family:var(--font-head);
  font-weight:700;
  font-size:.95rem;
  letter-spacing:.08em;
  line-height:1.4;
  white-space:nowrap;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.btn--gold{
  background:linear-gradient(120deg,var(--gold) 0%,#d9b64a 55%,var(--gold) 100%);
  color:var(--ink-deep);
  box-shadow:0 14px 30px -18px rgba(201,162,39,.85);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 20px 36px -18px rgba(201,162,39,.95)}
.btn--ghost{
  border-color:var(--glass-line);
  color:var(--cream);
  background:rgba(245,242,234,.06);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn--ghost:hover{background:rgba(245,242,234,.14);border-color:var(--gold-soft)}
.btn--outline{
  border-color:var(--ink-14);
  color:var(--ink);
  background:rgba(255,255,255,.72);
}
.btn--outline:hover{border-color:var(--gold);color:var(--ink-deep);transform:translateY(-2px)}
.btn--block{width:100%}

.chip{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.28rem .8rem;
  border-radius:var(--r-pill);
  border:1px solid var(--ink-14);
  background:rgba(255,255,255,.7);
  color:var(--stone);
  font-family:var(--font-num);
  font-size:.74rem;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.chip--gold{border-color:var(--gold-45);color:#8a6d12;background:rgba(232,217,168,.45)}
.chip--coral{border-color:rgba(232,106,74,.4);color:#b2401f;background:rgba(232,106,74,.12)}
.chip--mist{border-color:rgba(127,166,184,.5);color:#3d6474;background:rgba(127,166,184,.16)}
.chip--moss{border-color:rgba(47,107,87,.45);color:var(--moss);background:rgba(47,107,87,.12)}

/* ---------- 6. 卡片 / 玻璃层 / 图片 ---------- */
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:.7rem;
  background:#fff;
  border:1px solid var(--ink-08);
  border-radius:var(--r-lg);
  padding:clamp(1.25rem,2.4vw,2rem);
  box-shadow:var(--shadow-soft);
  color:var(--ink);
}
.card--dark{background:var(--ink);border-color:rgba(232,217,168,.2);color:var(--cream-70)}
.card--dark .card__title,.card--dark .card__kicker{color:var(--cream)}
.card--link{transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease)}
.card--link:hover{transform:translateY(-4px);border-color:var(--gold-45);box-shadow:var(--shadow-deep)}
.card__kicker{
  font-family:var(--font-num);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gold);
}
.card__title{font-size:var(--fs-h3);font-weight:700;letter-spacing:.03em}
.card__text{font-size:.95rem;color:var(--stone);margin:0}
.card--dark .card__text{color:var(--cream-70)}
.card__meta{
  margin-top:auto;
  padding-top:.9rem;
  border-top:1px solid var(--ink-08);
  font-family:var(--font-num);
  font-size:.76rem;
  letter-spacing:.14em;
  color:var(--stone);
}
.card--dark .card__meta{border-top-color:rgba(245,242,234,.16);color:var(--cream-52)}

.glass{
  background:var(--glass-light);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
}

.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-md);
  background:
    repeating-radial-gradient(circle at 82% 18%,rgba(232,217,168,.16) 0 1px,rgba(232,217,168,0) 1px 26px),
    linear-gradient(140deg,var(--moss) 0%,var(--ink) 78%);
  isolation:isolate;
}
.media > img,
.media > svg,
.media > video{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--3x4{aspect-ratio:3/4}
.media--21x9{aspect-ratio:21/9}
.media__veil{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,22,19,0) 38%,rgba(10,22,19,.78) 100%);
  pointer-events:none;
}
.media__caption{
  position:absolute;
  left:clamp(1rem,2vw,1.5rem);
  right:clamp(1rem,2vw,1.5rem);
  bottom:clamp(.9rem,2vw,1.25rem);
  color:var(--cream);
  font-size:.85rem;
  letter-spacing:.04em;
  text-shadow:0 2px 12px rgba(10,22,19,.6);
}
.media__tag{position:absolute;top:clamp(.8rem,1.6vw,1.2rem);left:clamp(.8rem,1.6vw,1.2rem)}

/* ---------- 7. 数据 / 时间线 / 手风琴 / 筛选 ---------- */
.stat{display:grid;gap:.35rem}
.stat__value{
  font-family:var(--font-num);
  font-size:clamp(1.9rem,4vw,2.9rem);
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:var(--ink);
}
.stat__label{font-size:.78rem;letter-spacing:.16em;color:var(--stone)}

.timeline{
  position:relative;
  display:grid;
  gap:clamp(1.25rem,3vw,2.1rem);
  padding-left:1.9rem;
  border-left:1px solid var(--gold-24);
}
.timeline__node{position:relative;padding-right:.5rem}
.timeline__node::before{
  content:"";
  position:absolute;
  left:-2.36rem;
  top:.6rem;
  width:11px;
  height:11px;
  border-radius:50%;
  background:var(--cream);
  border:2px solid var(--gold);
  box-shadow:0 0 0 4px rgba(201,162,39,.16);
}
.timeline__time{
  display:block;
  font-family:var(--font-num);
  font-size:.76rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--moss);
  margin-bottom:.3rem;
}
.timeline__title{font-size:1.08rem;font-weight:700;letter-spacing:.03em;margin-bottom:.35rem}
.timeline__text{font-size:.94rem;color:var(--stone);margin:0}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  margin-bottom:clamp(1.25rem,2.6vw,2rem);
}
.filter-btn{
  padding:.48rem 1.05rem;
  border-radius:var(--r-pill);
  border:1px solid var(--ink-14);
  background:rgba(255,255,255,.66);
  color:var(--stone);
  font-size:.86rem;
  letter-spacing:.06em;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease);
}
.filter-btn:hover{border-color:var(--gold);color:var(--ink);transform:translateY(-1px)}
.filter-btn[aria-pressed="true"]{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--cream);
}
[data-filter-item][hidden]{display:none}
[data-filter-count]{
  font-family:var(--font-num);
  font-size:.82rem;
  letter-spacing:.12em;
  color:var(--stone);
  margin-left:.35rem;
}
.filter-empty{
  padding:1.6rem;
  border:1px dashed var(--ink-14);
  border-radius:var(--r-md);
  color:var(--stone);
  font-size:.92rem;
  text-align:center;
}

.accordion{display:grid;gap:.65rem}
.accordion__item{
  border:1px solid var(--ink-08);
  border-radius:var(--r-md);
  background:#fff;
  overflow:hidden;
  transition:border-color .3s var(--ease)
}
.accordion__item:hover{border-color:var(--gold-45)}
.accordion__trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  width:100%;
  padding:1.05rem clamp(1rem,2vw,1.5rem);
  text-align:left;
  font-family:var(--font-head);
  font-weight:700;
  font-size:1rem;
  letter-spacing:.03em;
  color:var(--ink);
}
.accordion__icon{
  position:relative;
  flex:0 0 auto;
  width:16px;
  height:16px;
}
.accordion__icon::before,
.accordion__icon::after{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:100%;
  height:1.5px;
  background:var(--gold);
  transition:transform .3s var(--ease);
}
.accordion__icon::after{transform:rotate(90deg)}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after{transform:rotate(0deg)}
.accordion__panel{
  padding:0 clamp(1rem,2vw,1.5rem) 1.25rem;
  font-size:.96rem;
  color:var(--stone);
}
.accordion__panel[hidden]{display:none}

/* ---------- 8. 面包屑 / 正文 / 显现 ---------- */
.breadcrumbs{padding-block:1rem;font-size:.82rem;color:var(--stone)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:.55rem}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:.55rem}
.breadcrumbs__item + .breadcrumbs__item::before{content:"/";color:var(--gold-45)}
.breadcrumbs__link{color:var(--stone);transition:color .25s var(--ease)}
.breadcrumbs__link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.breadcrumbs__current{color:var(--ink);font-weight:700}

.prose{max-width:74ch;color:var(--stone);font-size:1.02rem}
.prose h2{font-size:clamp(1.4rem,2.4vw,1.9rem);color:var(--ink);margin:2.4rem 0 .9rem}
.prose h3{font-size:1.15rem;color:var(--ink);margin:1.7rem 0 .5rem}
.prose p{margin-bottom:1.15rem}
.prose ul,.prose ol{display:grid;gap:.55rem;margin:0 0 1.3rem}
.prose ul li{position:relative;padding-left:1.5rem}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--gold);
}
.prose ol{counter-reset:p-item}
.prose ol li{position:relative;padding-left:1.9rem;counter-increment:p-item}
.prose ol li::before{
  content:counter(p-item,decimal-leading-zero);
  position:absolute;
  left:0;
  top:.15em;
  font-family:var(--font-num);
  font-size:.8rem;
  letter-spacing:.08em;
  color:var(--gold);
}
.prose a{
  color:var(--moss);
  text-decoration:underline;
  text-decoration-color:var(--gold-45);
  text-underline-offset:4px;
}
.prose a:hover{color:var(--ink)}
.prose blockquote{
  margin:1.6rem 0;
  padding:1rem 1.4rem;
  border-left:3px solid var(--gold);
  background:rgba(232,217,168,.22);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink);
  font-size:1rem;
}
.section--dark .prose h2,.section--dark .prose h3{color:var(--cream)}
.section--dark .prose blockquote{color:var(--cream);background:rgba(245,242,234,.06)}

[data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .75s var(--ease),transform .75s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
[data-reveal][data-visible]{opacity:1;transform:none}

/* ---------- 9. 页头 ---------- */
.skip-link{
  position:fixed;
  top:-120px;
  left:1rem;
  z-index:200;
  padding:.7rem 1.2rem;
  background:var(--gold);
  color:var(--ink-deep);
  font-weight:700;
  letter-spacing:.06em;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  box-shadow:var(--shadow-deep);
  transition:top .25s var(--ease);
}
.skip-link:focus{top:0}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  color:var(--cream);
  background:linear-gradient(180deg,rgba(15,42,36,.96),rgba(12,34,29,.86));
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid rgba(232,217,168,.18);
  transition:box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.site-header[data-scrolled]{
  box-shadow:0 20px 40px -30px rgba(10,22,19,.95);
  border-bottom-color:var(--gold-45);
}
.site-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(1rem,3vw,2.5rem);
  width:min(100% - var(--gutter) * 2,1440px);
  margin-inline:auto;
  min-height:var(--header-h);
  transition:min-height .35s var(--ease);
}
.site-header[data-scrolled] .site-header__inner{min-height:64px}

.brand{
  display:inline-flex;
  align-items:center;
  gap:.8rem;
  flex:0 0 auto;
  color:var(--cream);
  padding-block:.4rem;
}
.brand__mark{
  position:relative;
  flex:0 0 auto;
  width:40px;
  height:40px;
  border-radius:50%;
  border:1px solid var(--stone);
  display:grid;
  place-items:center;
  background:radial-gradient(circle at 50% 50%,rgba(47,107,87,.55),rgba(10,22,19,.4));
}
.brand__ring{
  position:absolute;
  inset:5px;
  border-radius:50%;
  border:1px solid var(--gold-45);
}
.brand__ring::after{
  content:"";
  position:absolute;
  inset:4px;
  border-radius:50%;
  border:1px dashed rgba(127,166,184,.7);
}
.brand__core{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 0 4px rgba(201,162,39,.2);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{
  display:flex;
  align-items:baseline;
  gap:.5rem;
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.06rem;
  letter-spacing:.12em;
  color:var(--cream);
}
.brand__latin{
  font-family:var(--font-num);
  font-size:.6rem;
  font-weight:600;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--gold-soft);
}
.brand__tagline{
  margin-top:.15rem;
  font-size:.68rem;
  letter-spacing:.28em;
  color:var(--cream-52);
}
.brand--footer .brand__mark{width:46px;height:46px}
.brand--footer .brand__name{font-size:1.18rem}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.6rem;
  padding:.5rem .85rem;
  border:1px solid var(--glass-line);
  border-radius:var(--r-pill);
  color:var(--cream);
  background:rgba(245,242,234,.06);
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold-soft);background:rgba(245,242,234,.12)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--gold-soft);
  transition:transform .3s var(--ease),opacity .25s var(--ease);
}
.nav-toggle__text{font-size:.72rem;letter-spacing:.2em}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(.5rem,1.4vw,1.4rem);
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(.1rem,.9vw,.7rem);
}
.site-nav__item{display:flex}
.site-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:.4rem;
  padding:.55rem .7rem;
  border-radius:var(--r-pill);
  font-size:.93rem;
  letter-spacing:.06em;
  color:rgba(245,242,234,.8);
  transition:color .3s var(--ease),background .3s var(--ease);
}
.site-nav__link:hover{color:var(--cream);background:rgba(245,242,234,.09)}
.site-nav__index{
  font-family:var(--font-num);
  font-size:.6rem;
  letter-spacing:.12em;
  color:var(--gold);
  opacity:.8;
}
.site-nav__label{white-space:nowrap}
.site-nav__link[aria-current="page"]{color:var(--cream)}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--gold-soft);opacity:1}
.site-nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:.7rem;
  right:.7rem;
  bottom:.22rem;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft));
}
.site-nav__cta{margin-left:.4rem}

.scroll-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--coral) 55%,var(--mist));
  pointer-events:none;
  z-index:2;
}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,8vw,7rem);
  background:
    radial-gradient(120% 90% at 88% 0%,rgba(47,107,87,.42),rgba(10,22,19,0) 62%),
    var(--ink);
  color:var(--cream-70);
  overflow:hidden;
}
.site-footer__glow{
  position:absolute;
  right:-14%;
  bottom:-52%;
  width:min(880px,92vw);
  aspect-ratio:1;
  border-radius:50%;
  background:
    repeating-radial-gradient(circle at 50% 50%,rgba(232,217,168,.1) 0 1px,rgba(232,217,168,0) 1px 46px),
    radial-gradient(circle at 50% 50%,rgba(201,162,39,.22),rgba(47,107,87,.14) 46%,rgba(10,22,19,0) 72%);
  pointer-events:none;
}
.site-footer__inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(280px,1fr) minmax(0,1.9fr);
  gap:clamp(2rem,5vw,4.5rem);
  width:min(100% - var(--gutter) * 2,1440px);
  margin-inline:auto;
  padding-block:clamp(2.5rem,6vw,4.5rem) clamp(1.75rem,4vw,3rem);
}
.site-footer__brand{display:flex;flex-direction:column;align-items:flex-start}
.site-footer__pitch{
  margin:1.2rem 0 0;
  max-width:36ch;
  font-size:.94rem;
  line-height:1.8;
  color:var(--cream-70);
}
.site-footer__contact{display:grid;gap:.7rem;margin-top:1.5rem}
.site-footer__contact-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:.55rem;
  font-size:.86rem;
}
.site-footer__label{
  flex:0 0 auto;
  padding:.16rem .6rem;
  border:1px solid rgba(201,162,39,.38);
  border-radius:var(--r-pill);
  font-family:var(--font-num);
  font-size:.66rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold-soft);
}
.site-footer__value{
  font-family:var(--font-num);
  letter-spacing:.04em;
  color:var(--cream);
  word-break:break-all;
}
.copy-btn{
  padding:.18rem .65rem;
  border:1px solid rgba(232,217,168,.32);
  border-radius:var(--r-pill);
  font-size:.7rem;
  letter-spacing:.14em;
  color:var(--gold-soft);
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.copy-btn:hover{background:rgba(201,162,39,.18);color:var(--cream);border-color:var(--gold-soft)}
.copy-btn[data-copied]{background:var(--moss);border-color:transparent;color:var(--cream)}

.site-footer__nav{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:clamp(1rem,2vw,1.6rem);
}
.footer-col{display:flex;flex-direction:column;gap:.5rem;padding-top:1rem;border-top:1px solid rgba(232,217,168,.24)}
.footer-col__title{
  font-family:var(--font-head);
  font-size:.96rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--cream);
  transition:color .25s var(--ease);
}
.footer-col__title:hover{color:var(--gold-soft)}
.footer-col__note{
  margin:0;
  font-size:.8rem;
  line-height:1.65;
  color:var(--cream-52);
}
.site-footer__note{
  position:relative;
  z-index:1;
  width:min(100% - var(--gutter) * 2,1440px);
  margin-inline:auto;
  padding:.9rem 1.2rem;
  border-left:2px solid var(--gold);
  background:rgba(245,242,234,.05);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:.84rem;
  color:var(--cream-70);
}
.site-footer__note p{margin:0}
.site-footer__meta{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.7rem 1.6rem;
  width:min(100% - var(--gutter) * 2,1440px);
  margin-inline:auto;
  margin-top:clamp(1.5rem,3vw,2.5rem);
  padding-block:1.4rem 2.2rem;
  border-top:1px solid rgba(245,242,234,.12);
  font-size:.78rem;
  color:var(--cream-52);
}
.site-footer__legal{display:flex;align-items:center;flex-wrap:wrap;gap:.6rem;margin:0}
.site-footer__legal a{color:var(--gold-soft);transition:color .25s var(--ease)}
.site-footer__legal a:hover{color:var(--cream);text-decoration:underline;text-underline-offset:3px}
.site-footer__sep{color:rgba(245,242,234,.3)}
.site-footer__icp{font-family:var(--font-num);letter-spacing:.08em;margin:0}
.site-footer__copy{margin:0}

/* ---------- 11. 响应式 ---------- */
@media (min-width:768px){
  .bento__cell{grid-column:span var(--span,12)}
}
@media (max-width:1120px){
  .site-header__inner{min-height:64px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:.3rem;
    padding:1rem var(--gutter) 1.6rem;
    background:linear-gradient(180deg,rgba(10,22,19,.98),rgba(12,34,29,.97));
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(232,217,168,.24);
    box-shadow:var(--shadow-deep);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .site-nav[data-open]{display:flex;animation:navDrop .28s var(--ease)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:.15rem}
  .site-nav__item{width:100%}
  .site-nav__link{
    width:100%;
    justify-content:flex-start;
    padding:.85rem .6rem;
    font-size:1.05rem;
    border-radius:var(--r-sm);
    border-bottom:1px solid rgba(245,242,234,.08);
  }
  .site-nav__link[aria-current="page"]{background:rgba(201,162,39,.16)}
  .site-nav__link[aria-current="page"]::after{display:none}
  .site-nav__cta{margin:1rem 0 0;width:100%}
  .site-footer__inner{grid-template-columns:1fr;gap:2.25rem}
  .site-footer__nav{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@keyframes navDrop{
  from{opacity:0;transform:translateY(-10px)}
  to{opacity:1;transform:translateY(0)}
}
@media (max-width:720px){
  :root{--header-h:66px}
  .brand__latin{display:none}
  .brand__tagline{letter-spacing:.2em;font-size:.64rem}
  .site-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__meta{flex-direction:column;align-items:flex-start}
  .card{border-radius:var(--r-md)}
  .timeline{padding-left:1.5rem}
  .timeline__node::before{left:-1.98rem}
}
@media (max-width:420px){
  .nav-toggle__text{display:none}
  .site-footer__nav{grid-template-columns:1fr}
}

/* ---------- 12. 减少动效 ---------- */
@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]{opacity:1;transform:none}
  .btn:hover,.card--link:hover,.filter-btn:hover{transform:none}
}