/* ============================================================
   万利品牌 · 共享样式 /assets/site.css
   深靛蓝场域 + 暖纸阅读面 + 琥珀金动作 + 青瓷绿状态
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-900:#0B1B3A;
  --ink-800:#122A5C;
  --ink-700:#1E3A6E;
  --paper:#F3E9D2;
  --parchment:#E7D6B4;
  --amber:#F2B544;
  --amber-bright:#FFC968;
  --amber-ink:#8A5A05;
  --celadon:#5FB7A3;
  --celadon-ink:#2C7A6B;
  --mist:#A8C7D8;
  --ink-black:#10141C;

  --line-dark:rgba(168,199,216,.18);
  --line-dark-strong:rgba(168,199,216,.34);
  --line-light:rgba(16,20,28,.14);
  --line-light-soft:rgba(16,20,28,.08);

  --font-sans:"Inter","Source Han Sans SC","Noto Sans 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;

  --shell:1280px;
  --gutter:clamp(18px,4vw,40px);
  --gap:clamp(16px,1.8vw,24px);

  --r-sm:12px;
  --r-md:20px;
  --r-lg:30px;
  --r-xl:44px;
  --r-pill:999px;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:112px}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
:where(a,button,[tabindex]):focus-visible{
  outline:2px solid var(--amber);
  outline-offset:3px;
  border-radius:6px;
  box-shadow:0 0 0 6px rgba(11,27,58,.35);
}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  color:var(--ink-black);
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(30,58,110,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,58,110,.055) 1px,transparent 1px);
  background-size:76px 76px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  color:inherit;
  text-wrap:balance;
}
h1{font-size:clamp(36px,5.6vw,72px)}
h2{font-size:clamp(28px,3.6vw,48px)}
h3{font-size:clamp(20px,2.4vw,30px);line-height:1.25}
h4{font-size:clamp(17px,1.6vw,20px);line-height:1.35;letter-spacing:-.01em}
p{text-wrap:pretty}
strong,b{font-weight:700}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
::selection{background:var(--amber);color:var(--ink-black)}
.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
}

/* ---------- 4. 容器与栅格 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.shell--narrow{max-width:760px}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.col-3{grid-column:span 3}
.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-9{grid-column:span 9}
.col-12{grid-column:span 12}
@media (max-width:900px){
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9{grid-column:span 12}
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-120px;
  z-index:200;
  padding:12px 22px;
  border-radius:var(--r-pill);
  background:var(--amber);
  color:var(--ink-black);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  transition:top .22s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{top:16px}

/* ---------- 6. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  color:var(--paper);
  background:rgba(11,27,58,.84);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
  backdrop-filter:blur(18px) saturate(130%);
  border-bottom:1px solid var(--line-dark);
  transition:background-color .32s var(--ease),box-shadow .32s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(11,27,58,.985);
  box-shadow:0 24px 52px -34px rgba(0,0,0,.95);
}

/* 顶部细轨 */
.header-rail{
  max-height:64px;
  overflow:hidden;
  opacity:1;
  border-bottom:1px solid var(--line-dark);
  transition:max-height .34s var(--ease),opacity .24s var(--ease),border-color .3s var(--ease);
}
.site-header[data-scrolled="true"] .header-rail{
  max-height:0;
  opacity:0;
  border-bottom-color:transparent;
}
.rail-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:40px;
  padding-block:8px;
  font-size:12px;
  letter-spacing:.06em;
}
.rail-brand{
  color:var(--paper);
  font-weight:500;
  letter-spacing:.14em;
}
.rail-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-family:var(--font-mono);
  color:var(--mist);
}
.rail-version{
  color:var(--amber);
  font-size:11px;
  letter-spacing:.1em;
  padding:3px 10px;
  border:1px solid rgba(242,181,68,.45);
  border-radius:var(--r-pill);
  background:rgba(242,181,68,.08);
}
.rail-note{
  color:rgba(168,199,216,.82);
  font-size:11.5px;
  letter-spacing:.06em;
}

/* 主行 */
.header-main-inner{
  display:flex;
  align-items:center;
  gap:clamp(14px,2.6vw,36px);
  padding-block:13px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  border-radius:var(--r-md);
}
.brand-mark{
  position:relative;
  width:42px;
  height:42px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:15px;
  background:linear-gradient(145deg,var(--ink-700),var(--ink-800) 60%,var(--ink-900));
  border:1px solid rgba(242,181,68,.45);
  box-shadow:inset 0 1px 0 rgba(243,233,210,.14);
  overflow:hidden;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:6px;
  bottom:6px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--celadon);
}
.brand-glyph{
  width:16px;
  height:16px;
  border-radius:5px;
  background:var(--amber);
  transform:rotate(45deg);
  box-shadow:0 0 0 4px rgba(242,181,68,.14);
}
.brand-type{display:flex;flex-direction:column;line-height:1.1}
.brand-word{
  font-size:19px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--paper);
}
.brand-sub{
  margin-top:4px;
  font-size:10.5px;
  letter-spacing:.24em;
  color:var(--celadon);
}

/* 导航 */
.nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:clamp(14px,2.2vw,30px);
}
.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.5vw,20px);
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 4px;
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.02em;
  color:rgba(231,214,180,.76);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:4px;
  right:4px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{
  color:var(--paper);
  font-weight:700;
}
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--celadon);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.nav-actions{display:none}

/* 菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:10px 16px 10px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-dark-strong);
  color:var(--paper);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--celadon)}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:currentColor;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:top .24s var(--ease),transform .24s var(--ease);
}
.nav-toggle-bars::before{top:-6px}
.nav-toggle-bars::after{top:6px}
.site-header[data-open="true"] .nav-toggle{
  border-color:var(--celadon);
  background:rgba(95,183,163,.14);
}
.site-header[data-open="true"] .nav-toggle-bars{background:transparent}
.site-header[data-open="true"] .nav-toggle-bars::before{top:0;transform:rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bars::after{top:0;transform:rotate(-45deg)}

/* 滚动进度 */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:linear-gradient(90deg,var(--amber),var(--celadon));
  transform-origin:left center;
  transform:scaleX(var(--progress,0));
  opacity:.92;
  pointer-events:none;
}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.3;
  text-align:center;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{
  background:var(--amber);
  color:var(--ink-black);
  box-shadow:0 16px 30px -20px rgba(242,181,68,.95);
}
.btn--primary:hover{background:var(--amber-bright)}
.btn--ghost{
  border-color:var(--line-dark-strong);
  color:var(--paper);
  background:rgba(11,27,58,.24);
}
.btn--ghost:hover{
  border-color:var(--celadon);
  color:var(--celadon);
  background:rgba(95,183,163,.1);
}
.btn--quiet{
  padding:6px 2px;
  border-radius:4px;
  color:var(--ink-800);
  background:none;
  text-decoration:underline;
  text-decoration-color:rgba(95,183,163,.8);
  text-underline-offset:4px;
}
.btn--quiet:hover{color:var(--celadon-ink);transform:none}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  font-size:14.5px;
  color:var(--ink-800);
  border-bottom:1px solid rgba(95,183,163,.7);
  padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.link-arrow::after{content:"→";font-family:var(--font-mono)}
.link-arrow:hover{color:var(--celadon-ink);border-color:var(--amber)}

/* ---------- 8. 面包屑 ---------- */
.breadcrumbs{
  padding-block:18px;
  font-size:13px;
  color:rgba(16,20,28,.62);
}
.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  letter-spacing:.03em;
}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:rgba(16,20,28,.32)}
.breadcrumbs a{
  color:var(--ink-800);
  text-decoration:underline;
  text-decoration-color:rgba(95,183,163,.7);
  text-underline-offset:3px;
}
.breadcrumbs a:hover{text-decoration-color:var(--amber)}
.breadcrumbs [aria-current="page"]{color:rgba(16,20,28,.85)}
.breadcrumbs--dark{color:rgba(231,214,180,.68)}
.breadcrumbs--dark a{color:var(--paper);text-decoration-color:rgba(95,183,163,.8)}
.breadcrumbs--dark li+li::before{color:rgba(168,199,216,.45)}
.breadcrumbs--dark [aria-current="page"]{color:rgba(231,214,180,.9)}

/* ---------- 9. 章节与正文 ---------- */
.section{padding-block:clamp(48px,6.4vw,96px)}
.section--ink{background:var(--ink-900);color:var(--paper)}
.section--panel{background:var(--ink-800);color:var(--paper)}
.section--sand{background:var(--parchment);color:var(--ink-black)}
.section-head{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:820px;
  margin-bottom:clamp(26px,3vw,44px);
}
.section-title{font-size:clamp(28px,3.6vw,48px)}
.section-lede{
  max-width:64ch;
  font-size:clamp(15px,1.3vw,17.5px);
  line-height:1.8;
  color:rgba(16,20,28,.72);
}
.section--ink .section-lede,
.section--panel .section-lede{color:rgba(231,214,180,.78)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--ink-700);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:2px;
  border-radius:2px;
  background:var(--amber);
}
.section--ink .eyebrow,
.section--panel .eyebrow{color:var(--mist)}
.section--ink .eyebrow::before,
.section--panel .eyebrow::before{background:var(--celadon)}

.prose{
  max-width:760px;
  font-size:16.5px;
  line-height:1.8;
}
.prose>*+*{margin-top:1.05em}
.prose h2{margin-top:2em;font-size:clamp(24px,2.4vw,32px)}
.prose h3{margin-top:1.7em}
.prose ul,.prose ol{padding-left:1.35em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li+li{margin-top:.4em}
.prose a{
  color:var(--ink-800);
  text-decoration:underline;
  text-decoration-color:rgba(95,183,163,.8);
  text-underline-offset:3px;
}
.prose a:hover{text-decoration-color:var(--amber)}
.prose blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:3px solid var(--celadon);
  border-radius:0 var(--r-md) var(--r-md) 0;
  background:rgba(231,214,180,.6);
  font-size:15.5px;
}
.prose code{
  font-family:var(--font-mono);
  font-size:.9em;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(30,58,110,.09);
}

/* ---------- 10. 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-light);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--ink-700);
  background:rgba(243,233,210,.6);
}
.tag--amber{
  color:var(--amber-ink);
  border-color:rgba(242,181,68,.65);
  background:rgba(242,181,68,.18);
}
.tag--celadon{
  color:var(--celadon-ink);
  border-color:rgba(95,183,163,.6);
  background:rgba(95,183,163,.16);
}
.version-tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:var(--r-pill);
  background:var(--ink-900);
  color:var(--amber);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
}
.section--ink .tag,
.section--panel .tag{
  color:var(--mist);
  border-color:var(--line-dark-strong);
  background:rgba(243,233,210,.05);
}

/* ---------- 11. 图片容器基础 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--r-lg);
  aspect-ratio:16/9;
  background:
    radial-gradient(120% 120% at 12% 8%,rgba(95,183,163,.32),transparent 60%),
    linear-gradient(145deg,var(--ink-800),var(--ink-900) 62%,var(--ink-700));
  border:1px solid var(--line-dark);
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.78) brightness(.94) contrast(1.02) hue-rotate(-6deg);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__caption{
  position:absolute;
  left:14px;
  right:14px;
  bottom:14px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(11,27,58,.78);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  color:rgba(231,214,180,.86);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
}

/* ---------- 12. 视口淡入 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}
.js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 13. 筛选条（页面已有条目） ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:10px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-light);
  background:rgba(231,214,180,.5);
}
.section--ink .filter-bar,
.section--panel .filter-bar{
  border-color:var(--line-dark-strong);
  background:rgba(243,233,210,.05);
}
.filter-btn{
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:13px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--ink-700);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.filter-btn:hover{border-color:rgba(95,183,163,.7);color:var(--celadon-ink)}
.filter-btn[aria-pressed="true"]{
  background:var(--ink-900);
  color:var(--amber);
  border-color:var(--ink-900);
}
.section--ink .filter-btn,
.section--panel .filter-btn{color:var(--mist)}
.section--ink .filter-btn:hover,
.section--panel .filter-btn:hover{color:var(--celadon);border-color:var(--celadon)}
.section--ink .filter-btn[aria-pressed="true"],
.section--panel .filter-btn[aria-pressed="true"]{
  background:var(--amber);
  color:var(--ink-black);
  border-color:var(--amber);
}
.filter-count{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:rgba(16,20,28,.6);
}
.section--ink .filter-count,
.section--panel .filter-count{color:rgba(231,214,180,.66)}
[data-filter-item][hidden]{display:none !important}

/* ---------- 14. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,8vw,120px);
  padding:clamp(46px,6vw,86px) 0 30px;
  color:var(--paper);
  border-radius:var(--r-xl) var(--r-xl) 0 0;
  background:
    radial-gradient(120% 80% at 90% -12%,rgba(95,183,163,.2),transparent 62%),
    radial-gradient(90% 70% at 2% 0%,rgba(242,181,68,.12),transparent 58%),
    var(--ink-900);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:6%;
  right:6%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(242,181,68,.55),rgba(95,183,163,.55),transparent);
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1.7fr) minmax(0,1.25fr);
  gap:clamp(28px,4vw,56px);
  padding-bottom:clamp(30px,4vw,52px);
  border-bottom:1px solid var(--line-dark);
}
.footer-brand-name{
  font-size:clamp(26px,3.4vw,38px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.1;
  color:var(--paper);
}
.footer-brand-line{
  margin-top:9px;
  font-size:11px;
  letter-spacing:.2em;
  color:var(--celadon);
}
.footer-note{
  margin-top:16px;
  max-width:34ch;
  font-size:14px;
  line-height:1.75;
  color:rgba(231,214,180,.7);
}
.footer-version{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(242,181,68,.4);
  background:rgba(242,181,68,.08);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(231,214,180,.86);
}
.footer-version .mono{color:var(--amber);font-size:12.5px}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(20px,3vw,36px);
}
.footer-col-title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--mist);
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;
  font-size:14.5px;
  color:rgba(231,214,180,.82);
  border-radius:6px;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--amber);transform:translateX(3px)}

.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-item{display:flex;flex-direction:column;gap:4px}
.contact-key{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.18em;
  color:var(--mist);
}
.contact-value{
  font-size:14px;
  line-height:1.65;
  color:rgba(231,214,180,.9);
  overflow-wrap:anywhere;
}
.contact-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.copy-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:var(--r-pill);
  border:1px solid rgba(168,199,216,.3);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--mist);
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.copy-chip:hover{border-color:var(--celadon);color:var(--celadon)}
.copy-chip[data-copied="true"]{
  border-color:var(--celadon);
  color:var(--celadon);
  background:rgba(95,183,163,.16);
}
.copy-chip__hint{display:inline-block;min-width:2.2em;text-align:center}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 28px;
  padding-top:26px;
  font-size:12.5px;
  color:rgba(231,214,180,.62);
}
.legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
}
.legal-links a{
  color:rgba(231,214,180,.82);
  border-radius:6px;
  transition:color .2s var(--ease);
}
.legal-links a:hover{color:var(--amber)}
.footer-icp{
  margin-left:auto;
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(168,199,216,.78);
}
.footer-copy{color:rgba(231,214,180,.52)}

/* ---------- 15. 断点 ---------- */
@media (max-width:1180px){
  .nav-link{font-size:14px}
  .header-actions .btn{padding:10px 18px;font-size:13.5px}
}
@media (max-width:1024px){
  .rail-note{display:none}
  .header-actions{display:none}
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    margin-left:0;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px var(--gutter) 26px;
    background:var(--ink-900);
    border-bottom:1px solid var(--line-dark);
    box-shadow:0 34px 60px -32px rgba(0,0,0,.95);
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
  }
  .site-header[data-open="true"] .nav{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }
  .nav-link{
    padding:14px 14px;
    border-radius:14px;
    font-size:16px;
    color:rgba(231,214,180,.86);
  }
  .nav-link::after{display:none}
  .nav-link:hover{background:rgba(243,233,210,.06);color:var(--paper)}
  .nav-link[aria-current="page"]{
    background:rgba(95,183,163,.14);
    color:var(--paper);
    box-shadow:inset 3px 0 0 var(--celadon);
  }
  .nav-actions{
    display:flex;
    flex-direction:column;
    gap:10px;
    margin-top:18px;
  }
  .nav-actions .btn{padding:14px 20px;font-size:15px;width:100%}

  .footer-top{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  }
  .footer-contact{grid-column:span 2}
  .footer-icp{margin-left:0}
}
@media (max-width:680px){
  :root{--r-xl:28px;--r-lg:22px}
  .brand-word{font-size:17px}
  .brand-sub{letter-spacing:.18em}
  .brand-mark{width:38px;height:38px;border-radius:13px}
  .footer-top{grid-template-columns:1fr}
  .footer-contact{grid-column:span 1}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-copy{order:3}
  .filter-bar{border-radius:var(--r-md);padding:8px}
  .filter-btn{padding:7px 13px;font-size:12.5px}
  .eyebrow{font-size:10.5px;letter-spacing:.16em}
  .breadcrumbs{font-size:12px;padding-block:14px}
}

/* ---------- 16. 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;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .btn:hover,.footer-link:hover{transform:none}
}