/* =========================================================
   澳门新京葡 · CN 首页 — 共享样式表 /assets/site.css
   色彩：深葡红 / 鎏金 / 翡翠 / 暖橘 / 陶土米白
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --wine-deep:#3D0B16;
  --wine:#5A1220;
  --wine-mid:#8C2036;
  --gold:#C9962B;
  --gold-light:#F0D89A;
  --jade:#0F6B54;
  --jade-bright:#2FA57F;
  --orange:#E2762B;
  --clay:#A65A3C;
  --moss:#5B6B4A;
  --ink:#232326;
  --cream:#F6F1E6;
  --black:#120E0C;

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

  --radius-pill:999px;
  --radius-lg:32px;
  --radius-md:22px;
  --radius-sm:14px;

  --shadow-card:0 20px 44px -34px rgba(18,14,12,.72);
  --shadow-float:0 26px 54px -30px rgba(18,14,12,.9);

  --ease:cubic-bezier(.22,.61,.36,1);
  --speed-fast:120ms;
  --speed:180ms;
  --speed-slow:280ms;

  --gutter:clamp(18px,6vw,80px);
  --shell:1240px;
  --grid-min:280px;
}

/* ---------- 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,p,ul,ol,figure,blockquote,address{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid var(--jade-bright);outline-offset:3px;border-radius:4px}

/* ---------- 3. 中文排版与基底 ---------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.004em;
  color:var(--ink);
  background-color:var(--cream);
  background-image:
    radial-gradient(1200px 620px at 6% -12%, rgba(201,150,43,.18), transparent 62%),
    radial-gradient(940px 520px at 102% 2%, rgba(140,32,54,.13), transparent 60%),
    radial-gradient(860px 700px at 50% 118%, rgba(15,107,84,.11), transparent 62%);
  background-attachment:fixed;
  overflow-x:hidden;
  word-break:break-word;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.15;
  letter-spacing:.04em;
  color:var(--black);
}
p{overflow-wrap:break-word}
strong{font-weight:700;color:var(--black)}
::selection{background:var(--gold-light);color:var(--black)}

/* ---------- 4. 布局容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.wrap--narrow{max-width:820px}
.section{padding-block:clamp(42px,7vw,96px)}
.section--tight{padding-block:clamp(26px,4vw,52px)}
.rule{height:1px;border:0;background:linear-gradient(90deg,rgba(201,150,43,.72),rgba(201,150,43,0))}
.curve-divider{
  display:block;width:100%;height:clamp(24px,3.5vw,48px);
  background:linear-gradient(180deg,var(--wine),var(--wine-deep));
  border-radius:0 0 50% 50% / 0 0 100% 100%;
}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 5. 横向主题带 ---------- */
.band{width:100%;padding-block:clamp(30px,4.6vw,64px);position:relative;overflow:hidden}
.band__inner{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.band--wine{background:linear-gradient(120deg,var(--wine-deep),var(--wine) 55%,var(--wine-mid));color:var(--cream)}
.band--wine h1,.band--wine h2,.band--wine h3{color:var(--cream)}
.band--gold{background:linear-gradient(100deg,#C9962B,#F0D89A 48%,#C9962B);color:var(--black)}
.band--gold h1,.band--gold h2,.band--gold h3{color:var(--black)}
.band--jade{background:linear-gradient(120deg,#0B5342,var(--jade) 60%,#14795F);color:var(--cream)}
.band--jade h1,.band--jade h2,.band--jade h3{color:var(--cream)}

/* ---------- 6. 文字层级 ---------- */
.display{
  font-family:var(--font-display);
  font-weight:300;
  line-height:1.04;
  letter-spacing:.04em;
  color:var(--black);
  text-wrap:balance;
}
.display--xl{font-size:clamp(56px,11vw,132px)}
.display--lg{font-size:clamp(40px,7vw,88px)}
.display--md{font-size:clamp(28px,4vw,40px)}
.display--heavy{font-weight:800}
.mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--clay);
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--gold);flex:0 0 auto}
.lede{
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.75;
  color:#3A3A40;
  max-width:64ch;
}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px 28px;margin-bottom:clamp(24px,3.5vw,44px);
}
.section-head__title{
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(26px,3.6vw,40px);line-height:1.18;letter-spacing:.04em;color:var(--black);
}

/* ---------- 7. 正文块 ---------- */
.prose{max-width:70ch;font-size:17.5px;line-height:1.85;color:#2B2B30}
.prose > * + *{margin-top:1.2em}
.prose h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:600;letter-spacing:.04em;
  color:var(--black);margin-top:1.9em;
}
.prose h3{font-size:20px;font-weight:600;letter-spacing:.03em;color:var(--wine);margin-top:1.6em}
.prose a{color:var(--wine-mid);text-decoration:none;border-bottom:1px solid rgba(201,150,43,.72)}
.prose a:hover{color:var(--gold);border-bottom-color:var(--gold)}
.prose ul,.prose ol{padding-left:1.3em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li + li{margin-top:.5em}
.prose blockquote{border-left:3px solid var(--gold);padding-left:1.1em;color:var(--moss);font-style:normal}
.prose code{font-family:var(--font-mono);font-size:.92em;background:rgba(201,150,43,.16);padding:2px 6px;border-radius:6px}

/* ---------- 8. 标签与状态点 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  padding:4px 13px;border-radius:var(--radius-pill);
  border:1px solid rgba(201,150,43,.5);
  color:var(--wine-mid);
  background:rgba(240,216,154,.28);
}
.tag--jade{border-color:rgba(15,107,84,.42);color:var(--jade);background:rgba(47,165,127,.14)}
.tag--orange{border-color:rgba(226,118,43,.45);color:#9C4A12;background:rgba(226,118,43,.14)}
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex:0 0 auto;background:var(--gold)}
.status-dot--gold{background:var(--gold)}
.status-dot--jade{background:var(--jade-bright);box-shadow:0 0 0 3px rgba(47,165,127,.22)}
.status-dot--orange{background:var(--orange);box-shadow:0 0 0 3px rgba(226,118,43,.2)}

/* ---------- 9. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.03em;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform var(--speed) var(--ease),background-color var(--speed) var(--ease),
             color var(--speed) var(--ease),box-shadow var(--speed) var(--ease),border-color var(--speed) var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--gold{
  background:linear-gradient(120deg,#E4BC58,var(--gold));
  color:var(--black);
  box-shadow:0 12px 26px -14px rgba(201,150,43,.95);
}
.btn--gold:hover{box-shadow:0 16px 30px -14px rgba(201,150,43,1)}
.btn--ghost{background:transparent;border-color:rgba(240,216,154,.55);color:var(--gold-light)}
.btn--ghost:hover{background:rgba(240,216,154,.14);color:#FFF6DC}
.btn--jade{background:linear-gradient(120deg,#14795F,var(--jade));color:var(--cream);box-shadow:0 12px 26px -16px rgba(15,107,84,.95)}
.btn--ink{background:var(--black);color:var(--gold-light);border-color:rgba(18,14,12,.9)}
.btn--ink:hover{background:#2C2C30;color:#FFF6DC}
.btn--sm{padding:9px 17px;font-size:13.5px;letter-spacing:.05em}
.btn--block{width:100%}

/* ---------- 10. 网格与卡片 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,var(--grid-min)),1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,calc(var(--grid-min) * .82)),1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(min(100%,calc(var(--grid-min) * .66)),1fr))}
.card{
  position:relative;
  background:#FFFDF8;
  border:1px solid rgba(35,35,38,.07);
  border-radius:var(--radius-md);
  padding:clamp(18px,2.4vw,30px);
  box-shadow:var(--shadow-card);
  transition:transform var(--speed) var(--ease),box-shadow var(--speed) var(--ease),border-color var(--speed) var(--ease);
}
.card:hover,.card:focus-within{
  transform:translateY(-4px);
  box-shadow:0 30px 56px -32px rgba(18,14,12,.62);
  border-color:rgba(201,150,43,.42);
}
.card__head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.card__title{font-family:var(--font-display);font-size:clamp(19px,2vw,23px);font-weight:600;letter-spacing:.04em;color:var(--black)}
.card__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--moss)}
.card__body{font-size:15.5px;line-height:1.8;color:#41414A}
.card__link{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  font-size:14px;font-weight:600;letter-spacing:.04em;
  color:var(--wine-mid);text-decoration:none;
  border-bottom:1px solid rgba(201,150,43,.6);padding-bottom:2px;
}
.card__link:hover{color:var(--gold)}

/* ---------- 11. 图片容器（页面阶段放入 <img>） ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-lg);
  aspect-ratio:16 / 9;
  background-color:var(--wine);
  background-image:linear-gradient(135deg,var(--wine-deep),var(--wine-mid) 52%,var(--gold));
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4;border-radius:var(--radius-md)}
.media-frame--soft{border-radius:var(--radius-md)}
.media-frame--veil::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(18,14,12,0) 42%,rgba(18,14,12,.5));
}
.media-frame__caption{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--gold-light);
}

/* ---------- 12. 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--moss)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:9px}
.breadcrumb__link{text-decoration:none;color:var(--wine-mid);border-bottom:1px solid rgba(201,150,43,.55);padding-bottom:1px}
.breadcrumb__link:hover{color:var(--gold)}
.breadcrumb__item[aria-current="page"]{color:var(--ink)}
.breadcrumb__sep{color:rgba(35,35,38,.32)}

/* ---------- 13. 跳过链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  transform:translateY(-180%);
  padding:12px 22px;border-radius:var(--radius-pill);
  background:var(--gold);color:var(--black);
  font-size:14px;font-weight:700;letter-spacing:.06em;text-decoration:none;
  box-shadow:var(--shadow-float);
  transition:transform var(--speed) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 14. 悬浮胶囊头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:clamp(10px,1.6vw,18px) clamp(12px,3vw,28px) 0;
  pointer-events:none;
}
.header-shell{
  position:relative;
  pointer-events:auto;
  max-width:var(--shell);
  margin-inline:auto;
  display:flex;align-items:center;gap:clamp(10px,1.5vw,22px);
  padding:10px clamp(12px,1.6vw,20px);
  border-radius:var(--radius-pill);
  background:linear-gradient(115deg,rgba(61,11,22,.97),rgba(90,18,32,.95) 58%,rgba(61,11,22,.97));
  border:1px solid rgba(201,150,43,.42);
  box-shadow:0 26px 54px -32px rgba(18,14,12,.95),inset 0 1px 0 rgba(240,216,154,.16);
  backdrop-filter:blur(12px);
  transition:max-width var(--speed-slow) var(--ease),padding var(--speed-slow) var(--ease),box-shadow var(--speed-slow) var(--ease);
}
.site-header.is-compact .header-shell{
  max-width:1060px;
  padding:6px clamp(12px,1.5vw,18px);
  box-shadow:0 18px 40px -26px rgba(18,14,12,.95),inset 0 1px 0 rgba(240,216,154,.22);
}
.header-progress{
  position:absolute;left:22px;right:22px;bottom:5px;height:2px;
  border-radius:2px;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--gold-light) 45%,var(--jade-bright));
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;text-decoration:none;color:var(--cream)}
.brand-mark{
  position:relative;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  background:conic-gradient(from 210deg,var(--gold),var(--gold-light),var(--wine-mid),var(--gold));
  box-shadow:0 0 0 1px rgba(240,216,154,.5),0 8px 18px -10px rgba(201,150,43,.95);
}
.brand-mark__dot{width:13px;height:13px;border-radius:50%;background:var(--wine-deep);box-shadow:inset 0 0 0 2px var(--gold)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-name{font-family:var(--font-display);font-size:19px;font-weight:700;letter-spacing:.1em;color:var(--gold-light)}
.brand-suffix{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.26em;color:rgba(246,241,230,.6);margin-top:3px}
.brand-tagline{
  margin-left:4px;padding-left:16px;
  border-left:1px solid rgba(201,150,43,.35);
  font-size:12.5px;letter-spacing:.06em;color:rgba(246,241,230,.62);white-space:nowrap;
}

/* 导航 */
.site-nav{margin-left:auto;display:flex;align-items:center;gap:8px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;letter-spacing:.03em;
  color:rgba(246,241,230,.84);text-decoration:none;white-space:nowrap;
  transition:color var(--speed) var(--ease),background-color var(--speed) var(--ease),box-shadow var(--speed) var(--ease);
}
.nav-link:hover{color:var(--gold-light);background:rgba(201,150,43,.15)}
.nav-link[aria-current="page"]{
  color:var(--black);
  background:linear-gradient(120deg,#E7C25C,var(--gold));
  box-shadow:0 10px 22px -14px rgba(201,150,43,1);
}
.nav-utility{display:none}
.utility-link{
  font-size:13.5px;letter-spacing:.04em;text-decoration:none;
  color:rgba(246,241,230,.74);border-bottom:1px solid rgba(201,150,43,.45);padding-bottom:1px;
}
.utility-link:hover{color:var(--gold-light)}
.nav-utility__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;color:rgba(240,216,154,.6);align-self:center}

/* 右侧动作区 */
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.header-cta{white-space:nowrap}

/* 移动导航按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 15px;border-radius:var(--radius-pill);
  border:1px solid rgba(240,216,154,.45);
  color:var(--gold-light);background:rgba(240,216,154,.06);
  transition:background-color var(--speed) var(--ease),border-color var(--speed) var(--ease);
}
.nav-toggle:hover{background:rgba(240,216,154,.16)}
.nav-toggle__bars{display:flex;flex-direction:column;justify-content:center;gap:4px;width:18px}
.nav-toggle__bar{height:2px;border-radius:2px;background:currentColor;transition:transform var(--speed) var(--ease),opacity var(--speed) var(--ease)}
.nav-toggle__label{font-size:13px;letter-spacing:.14em}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 15. 平板与移动头部 ---------- */
@media (max-width:1200px){
  .brand-tagline{display:none}
}
@media (max-width:1023px){
  .site-header{padding:10px 12px 0}
  .header-shell{border-radius:28px;padding:9px 12px;gap:10px}
  .site-header.is-compact .header-shell{max-width:100%;padding:7px 12px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    margin:0;display:block;
    padding:14px;
    border-radius:26px;
    border:1px solid rgba(201,150,43,.42);
    background:linear-gradient(160deg,var(--wine-deep),var(--wine) 58%,#4A0F1B);
    box-shadow:0 34px 64px -34px rgba(18,14,12,.98);
    max-height:min(72vh,560px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity var(--speed-slow) var(--ease),transform var(--speed-slow) var(--ease),visibility var(--speed-slow) linear;
  }
  .site-header[data-open="true"] .site-nav{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{display:block;padding:13px 16px;border-radius:18px;font-size:16px}
  .nav-link[aria-current="page"]{box-shadow:none}
  .nav-utility{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
    margin-top:14px;padding-top:14px;
    border-top:1px solid rgba(201,150,43,.28);
  }
  .header-progress{left:16px;right:16px}
}
@media (max-width:480px){
  .brand-name{font-size:17px}
  .brand-suffix{font-size:9.5px;letter-spacing:.2em}
  .header-cta{padding:8px 13px;font-size:12.5px}
  .nav-toggle{padding:8px 12px}
  .nav-toggle__label{display:none}
}

/* ---------- 16. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,120px);
  color:var(--cream);
  border-radius:clamp(28px,5vw,56px) clamp(28px,5vw,56px) 0 0;
  overflow:hidden;
  background-color:var(--wine-deep);
  background-image:
    linear-gradient(180deg,rgba(74,15,27,.96) 0%,rgba(90,18,32,.97) 30%,rgba(61,11,22,.99) 100%),
    radial-gradient(620px 320px at 10% 0%,rgba(201,150,43,.2),transparent 66%),
    radial-gradient(540px 340px at 92% 14%,rgba(226,118,43,.16),transparent 62%);
}
.footer-strip{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 26px;
  padding:16px clamp(18px,5vw,72px);
  background:linear-gradient(100deg,var(--gold),var(--gold-light) 48%,var(--gold));
  color:var(--black);
}
.footer-strip__text{font-size:14.5px;letter-spacing:.02em;color:var(--black)}
.footer-strip__cta{flex:0 0 auto}
.footer-inner{
  position:relative;z-index:1;
  display:grid;gap:clamp(26px,3.6vw,52px);
  grid-template-columns:1fr;
  padding-block:clamp(36px,5.5vw,72px);
}
.footer-brand__title{
  font-family:var(--font-display);
  font-size:clamp(24px,3vw,34px);font-weight:600;letter-spacing:.12em;
  color:var(--gold-light);
}
.footer-tagline{font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:rgba(240,216,154,.72);margin-top:10px}
.footer-brand__desc{font-size:14.5px;line-height:1.85;color:rgba(246,241,230,.72);margin-top:14px;max-width:40ch}
.footer-col__title{
  font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:.2em;
  color:var(--gold-light);
  padding-bottom:12px;margin-bottom:16px;
  border-bottom:1px solid rgba(201,150,43,.3);
}
.footer-list{display:grid;gap:11px}
.footer-list--contact{gap:18px}
.footer-link{
  display:inline-block;
  font-size:14.5px;line-height:1.7;
  color:rgba(246,241,230,.8);text-decoration:none;
  transition:color var(--speed) var(--ease),transform var(--speed) var(--ease);
}
.footer-link:hover{color:var(--gold-light);transform:translateX(3px)}
.footer-contact__item{display:grid;gap:5px}
.footer-contact__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;color:rgba(240,216,154,.62)}
.footer-meta{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
  padding-block:20px 30px;
  border-top:1px solid rgba(201,150,43,.22);
}
.footer-legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:rgba(246,241,230,.66)}
.footer-icp{color:rgba(240,216,154,.82)}
.footer-note{font-size:13px;color:rgba(246,241,230,.56);flex:1 1 260px}
.to-top{
  margin-left:auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(240,216,154,.45);
  color:var(--gold-light);font-size:13px;letter-spacing:.12em;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--speed-slow) var(--ease),transform var(--speed-slow) var(--ease),
             background-color var(--speed) var(--ease),color var(--speed) var(--ease),visibility var(--speed-slow) linear;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--gold);color:var(--black);border-color:var(--gold)}
@media (min-width:640px){
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (min-width:960px){
  .footer-inner{grid-template-columns:1.5fr 1fr 1fr 1.2fr}
}
@media (max-width:640px){
  .footer-strip{padding:14px 20px}
  .footer-strip__cta{width:100%;justify-content:center}
  .footer-meta{padding-block:18px 26px}
  .to-top{margin-left:0}
}

/* ---------- 17. 进场显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 18. 章节高亮 ---------- */
[data-spy-link]{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 14px;border-radius:var(--radius-pill);
  font-size:13.5px;letter-spacing:.04em;text-decoration:none;
  color:var(--moss);
  transition:color var(--speed) var(--ease),background-color var(--speed) var(--ease);
}
[data-spy-link]::before{content:"";width:6px;height:6px;border-radius:50%;background:rgba(91,107,74,.4);transition:background-color var(--speed) var(--ease),box-shadow var(--speed) var(--ease)}
[data-spy-link]:hover{color:var(--wine-mid);background:rgba(201,150,43,.14)}
[data-spy-link][aria-current]{
  color:var(--wine);
  background:rgba(240,216,154,.42);
  box-shadow:inset 0 0 0 1px rgba(201,150,43,.5);
}
[data-spy-link][aria-current]::before{background:var(--jade-bright);box-shadow:0 0 0 3px rgba(47,165,127,.24)}

/* ---------- 19. 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;
  }
  [data-reveal]{opacity:1!important;transform:none!important}
  .btn:hover,.card:hover,.card:focus-within,.footer-link:hover{transform:none}
  .to-top{transition:none}
}