/* ==========================================================================
   金沙平台官网 · 共享样式 /assets/site.css
   轨道式页头 + 连续画布正文 + 沙丘页脚
   ========================================================================== */

:root{
  --gold:#D4A017;
  --gold-soft:#F6E3A8;
  --gold-deep:#B08310;
  --sand:#8B5A2B;
  --brown:#3B2412;
  --ink:#1F1A15;
  --blue:#1E90FF;
  --blue-deep:#0B63B8;
  --blue-mist:#E8F4FF;
  --salt:#F5F5F5;
  --white:#FFFFFF;
  --green:#2E7D5B;
  --amber:#B45309;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"SFMono-Regular","DejaVu Sans Mono",Consolas,"Noto Sans SC",monospace;

  --rail-w:288px;
  --pad:clamp(20px,4vw,64px);
  --radius-l:32px;
  --radius-m:20px;
  --radius-s:12px;
  --shadow-soft:0 18px 48px -26px rgba(59,36,18,.5);
  --shadow-lift:0 28px 64px -30px rgba(59,36,18,.6);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}

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

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.78;
  color:var(--brown);
  background-color:var(--salt);
  background-image:
    radial-gradient(78% 52% at 100% 0%, rgba(246,227,168,.5), transparent 62%),
    radial-gradient(58% 44% at 0% 100%, rgba(232,244,255,.85), transparent 66%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

main#main-content{
  display:block;
  min-height:60vh;
  padding-block:clamp(24px,4vw,56px) 0;
  scroll-margin-top:96px;
}

/* ---------- 基础排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-serif);
  font-weight:400;
  line-height:1.2;
  color:var(--ink);
  margin:0 0 .55em;
  letter-spacing:.01em;
}
h1{font-size:clamp(40px,5vw,72px);font-weight:300;line-height:1.1;}
h2{font-size:clamp(28px,3vw,44px);font-weight:300;}
h3{font-size:clamp(20px,2vw,26px);font-weight:500;line-height:1.35;}
h4{font-size:18px;font-weight:600;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--blue-deep);text-decoration-thickness:1px;text-underline-offset:3px;}
a:hover{color:var(--sand);}
ul,ol{margin:0 0 1em;padding-inline-start:1.25em;}
img{max-width:100%;}
strong{font-weight:600;color:var(--ink);}
small{font-size:13px;}

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

:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{
  outline:3px solid var(--blue-deep);
  outline-offset:3px;
  box-shadow:0 0 0 6px rgba(212,160,23,.4);
  border-radius:6px;
}

/* ---------- 跳至主要内容 ---------- */
.skip-link{
  position:fixed;
  top:14px;
  inset-inline-start:14px;
  z-index:200;
  display:inline-block;
  padding:12px 22px;
  border-radius:999px;
  background:var(--gold);
  color:var(--brown);
  font-size:14px;
  font-weight:600;
  text-decoration:none;
  box-shadow:var(--shadow-soft);
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);color:var(--brown);}

/* ==========================================================================
   页头：品牌轨道
   ========================================================================== */
.site-head{
  position:sticky;
  top:0;
  z-index:120;
  width:100%;
  background:
    radial-gradient(120% 80% at 0% 0%, rgba(212,160,23,.22), transparent 58%),
    linear-gradient(170deg,#2A1D12 0%, var(--brown) 62%, #2E2115 100%);
  color:var(--salt);
  border-bottom:1px solid rgba(212,160,23,.32);
  transition:box-shadow .3s var(--ease);
}
.site-head[data-scrolled="true"]{box-shadow:0 16px 34px -22px rgba(31,26,21,.9);}

.head-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 16px;
  padding:14px var(--pad);
  max-width:1440px;
  margin-inline:auto;
}

/* 品牌 */
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand__link{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:inherit;
  border-radius:var(--radius-s);
}
.brand__mark{
  position:relative;
  flex:none;
  width:42px;
  height:42px;
  border-radius:14px;
  background:linear-gradient(140deg,var(--gold) 0%,var(--gold-deep) 58%,var(--sand) 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.3), 0 8px 18px -10px rgba(212,160,23,.9);
  overflow:hidden;
}
.brand__mark::before{
  content:"";
  position:absolute;
  inset:9px 9px auto auto;
  width:15px;
  height:15px;
  border-radius:50%;
  background:radial-gradient(circle at 32% 32%, #FFF6DC, rgba(255,255,255,.2) 68%, transparent 70%);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset-inline:6px;
  bottom:8px;
  height:11px;
  border-radius:60% 60% 0 0 / 100% 100% 0 0;
  background:rgba(31,26,21,.55);
}
.brand__text{display:flex;flex-direction:column;gap:2px;min-width:0;}
.brand__name{
  font-family:var(--font-serif);
  font-size:18px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--salt);
  white-space:nowrap;
}
.brand__latin{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}
.brand__note{
  display:none;
  margin:0;
  font-size:12px;
  letter-spacing:.14em;
  color:rgba(245,245,245,.6);
}
.brand__link:hover .brand__name{color:var(--gold-soft);}

/* 移动端开关 */
.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-inline-start:auto;
  padding:10px 16px;
  border-radius:999px;
  border:1px solid rgba(212,160,23,.45);
  background:rgba(212,160,23,.14);
  color:var(--salt);
  font-family:var(--font-sans);
  font-size:13px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.nav-toggle:hover{background:rgba(212,160,23,.28);transform:translateY(-1px);}
.nav-toggle__bar{
  display:block;
  width:14px;
  height:2px;
  border-radius:2px;
  background:var(--gold);
  transition:background .25s var(--ease);
}
.nav-toggle__label{line-height:1;}
.site-head[data-open="true"] .nav-toggle{
  background:var(--gold);
  color:var(--brown);
  border-color:var(--gold);
}
.site-head[data-open="true"] .nav-toggle__bar{background:var(--brown);}

/* 导航 */
.primary-nav{
  display:none;
  flex-basis:100%;
  flex-direction:column;
  gap:6px;
  padding-block:10px 6px;
  max-height:min(72vh,560px);
  overflow-y:auto;
  overscroll-behavior:contain;
}
.site-head[data-open="true"] .primary-nav{display:flex;}
.nav-list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:2px;
}
.nav-list__item{min-width:0;}
.nav-link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:11px 14px;
  border-radius:14px;
  color:rgba(245,245,245,.86);
  font-size:15px;
  letter-spacing:.03em;
  text-decoration:none;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.nav-link__num{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--gold);
  opacity:.85;
}
.nav-link__label{line-height:1.4;}
.nav-link:hover,
.nav-link:focus-visible{
  background:rgba(212,160,23,.16);
  color:#FFFDF5;
}
.nav-link[aria-current="page"]{
  background:linear-gradient(90deg, rgba(212,160,23,.32), rgba(212,160,23,.06));
  color:#FFFDF5;
  box-shadow:inset 3px 0 0 var(--gold);
}
.nav-link[aria-current="page"] .nav-link__num{color:var(--gold-soft);opacity:1;}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  inset-inline-end:14px;
  top:50%;
  width:6px;
  height:6px;
  margin-top:-3px;
  border-radius:50%;
  background:var(--blue);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:10px;
  padding:13px 20px;
  border-radius:999px;
  background:var(--gold);
  color:var(--brown);
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  text-decoration:none;
  transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-cta::after{content:"↗";font-size:15px;line-height:1;}
.nav-cta:hover{
  background:#E4B227;
  color:var(--brown);
  transform:translateY(-2px);
  box-shadow:0 14px 26px -16px rgba(212,160,23,.95);
}

/* 滚动进度 */
.scroll-gauge{
  position:fixed;
  top:0;
  inset-inline:0;
  height:3px;
  z-index:130;
  background:rgba(59,36,18,.12);
  pointer-events:none;
}
.scroll-gauge__fill{
  display:block;
  width:100%;
  height:100%;
  background:linear-gradient(90deg,var(--gold),var(--blue));
  transform:scaleX(var(--p,0));
  transform-origin:left center;
}

/* ---------- 桌面：固定侧边轨道 ---------- */
@media (min-width:960px){
  body{padding-inline-start:var(--rail-w);}

  .site-head{
    position:fixed;
    inset-block:0;
    inset-inline-start:0;
    width:var(--rail-w);
    height:100vh;
    border-bottom:0;
    border-inline-end:1px solid rgba(212,160,23,.28);
    overflow-y:auto;
    overscroll-behavior:contain;
  }
  .head-inner{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    min-height:100%;
    padding:40px 26px 26px;
    max-width:none;
  }
  .brand{flex-direction:column;align-items:flex-start;gap:14px;}
  .brand__name{font-size:20px;}
  .brand__note{
    display:block;
    padding-top:12px;
    border-top:1px solid rgba(212,160,23,.24);
    width:100%;
    font-size:11.5px;
  }
  .nav-toggle{display:none;}
  .primary-nav{
    display:flex;
    flex:1 1 auto;
    max-height:none;
    overflow:visible;
    margin-top:32px;
    padding-block:0;
  }
  .nav-link{padding:12px 12px 12px 14px;font-size:14.5px;}
  .nav-link:hover{transform:translateX(4px);}
  .nav-cta{margin-top:auto;}

  .scroll-gauge{
    top:0;
    bottom:0;
    inset-inline-start:var(--rail-w);
    inset-inline-end:auto;
    width:3px;
    height:auto;
    background:rgba(59,36,18,.1);
  }
  .scroll-gauge__fill{
    width:100%;
    height:100%;
    background:linear-gradient(180deg,var(--gold),var(--blue));
    transform:scaleY(var(--p,0));
    transform-origin:top center;
  }
}

@media (min-width:1280px){
  :root{--rail-w:308px;}
  .head-inner{padding:48px 30px 30px;}
}

/* ==========================================================================
   页脚：沙丘收束
   ========================================================================== */
.site-foot{
  position:relative;
  margin-top:clamp(48px,7vw,110px);
  background:
    radial-gradient(90% 60% at 12% 0%, rgba(212,160,23,.18), transparent 60%),
    radial-gradient(70% 50% at 88% 8%, rgba(30,144,255,.14), transparent 62%),
    linear-gradient(180deg,#241909 0%, var(--ink) 46%, #171310 100%);
  color:rgba(245,245,245,.78);
  overflow:hidden;
}
.foot-dune{
  height:clamp(46px,7vw,96px);
  background-image:
    radial-gradient(120% 150% at 10% 148%, rgba(212,160,23,.5) 0 38%, transparent 39%),
    radial-gradient(96% 130% at 44% 162%, rgba(139,90,43,.62) 0 42%, transparent 43%),
    radial-gradient(120% 140% at 82% 154%, rgba(30,144,255,.22) 0 40%, transparent 41%);
  background-repeat:no-repeat;
}
.foot-inner{
  max-width:1180px;
  margin-inline:auto;
  padding:clamp(28px,4vw,56px) var(--pad) 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(26px,4vw,46px);
}
.foot-brand__name{
  margin:0 0 6px;
  font-family:var(--font-serif);
  font-size:22px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--salt);
}
.foot-brand__latin{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--gold);
}
.foot-brand__desc{
  margin:0;
  max-width:30ch;
  font-size:14.5px;
  line-height:1.72;
  color:rgba(245,245,245,.66);
}
.foot-col__title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}
.foot-list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:9px;
}
.foot-link{
  color:rgba(245,245,245,.8);
  font-size:14.5px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.foot-link:hover,
.foot-link:focus-visible{
  color:var(--gold-soft);
  border-bottom-color:rgba(212,160,23,.7);
}
.foot-contact{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.foot-contact__item{display:flex;flex-direction:column;gap:3px;}
.foot-contact__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(245,245,245,.5);
}
.foot-contact__value{
  font-size:14.5px;
  color:rgba(245,245,245,.92);
  word-break:break-word;
}
.foot-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  margin-top:clamp(28px,4vw,48px);
  padding-block:20px clamp(26px,4vw,40px);
  border-top:1px solid rgba(212,160,23,.24);
}
.foot-legal__copy,
.foot-icp{
  margin:0;
  font-size:12.5px;
  letter-spacing:.06em;
  color:rgba(245,245,245,.58);
}
.foot-icp{
  font-family:var(--font-mono);
  letter-spacing:.1em;
  color:rgba(212,160,23,.85);
}

@media (min-width:760px){
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .foot-grid{grid-template-columns:1.5fr .8fr .8fr 1.35fr;gap:clamp(24px,3vw,52px);}
}

/* ==========================================================================
   通用组件
   ========================================================================== */
.container{
  width:100%;
  max-width:1180px;
  margin-inline:auto;
  padding-inline:var(--pad);
}
.container--narrow{max-width:820px;}
.container--wide{max-width:1360px;}

.prose{max-width:66ch;font-size:17px;line-height:1.85;}
.prose h2{margin-top:clamp(28px,4vw,52px);}
.prose h3{margin-top:1.8em;}
.prose ul,.prose ol{padding-inline-start:1.2em;}
.prose li{margin-bottom:.4em;}
.prose blockquote{
  margin:clamp(20px,3vw,34px) 0;
  padding:18px 24px;
  border-inline-start:3px solid var(--gold);
  background:var(--blue-mist);
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:rgba(59,36,18,.9);
  font-family:var(--font-serif);
}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0 0 clamp(18px,3vw,32px);
  padding:0;
  font-size:13px;
  letter-spacing:.05em;
  color:rgba(59,36,18,.6);
}
.crumbs a{color:var(--blue-deep);text-decoration:none;}
.crumbs a:hover{text-decoration:underline;}
.crumbs__sep{color:rgba(139,90,43,.5);}

.chapter{padding-block:clamp(36px,6vw,92px);}
.chapter + .chapter{border-top:1px solid rgba(139,90,43,.16);}
.chapter__index{
  display:inline-flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--sand);
}
.chapter__index::after{
  content:"";
  width:clamp(40px,10vw,120px);
  height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.chapter__title{margin-bottom:.4em;}
.chapter__lede{
  max-width:62ch;
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.75;
  color:rgba(59,36,18,.78);
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(20px,3vw,36px);
}
.section-head > *{margin-bottom:0;}

.grid{display:grid;gap:clamp(20px,3vw,40px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(228px,1fr));}
.grid--split{grid-template-columns:1fr;gap:clamp(24px,4vw,56px);}
@media (min-width:900px){
  .grid--split{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:start;}
}

/* 图片容器基础规则（页面阶段填入 <img> 或占位块） */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  isolation:isolate;
  border-radius:var(--radius-l);
  background-color:var(--gold-soft);
  background-image:
    linear-gradient(135deg, rgba(212,160,23,.42), rgba(30,144,255,.16) 54%, rgba(139,90,43,.46)),
    radial-gradient(60% 80% at 80% 10%, rgba(255,255,255,.55), transparent 60%);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background-image:radial-gradient(rgba(255,255,255,.45) 1px, transparent 1px);
  background-size:14px 14px;
  opacity:.45;
  mix-blend-mode:soft-light;
  pointer-events:none;
}
.media--wide{aspect-ratio:16 / 7;}
.media--tall{aspect-ratio:3 / 4;}
.media--square{aspect-ratio:1 / 1;}
.media > img,
.media__img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:inherit;
}
.media__caption{
  position:absolute;
  inset-inline:0;
  inset-block-end:0;
  z-index:2;
  margin:0;
  padding:16px 22px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--salt);
  background:linear-gradient(0deg, rgba(31,26,21,.82), rgba(31,26,21,0));
}
@media (max-width:600px){
  .media{border-radius:var(--radius-m);}
  .media--wide{aspect-ratio:4 / 3;}
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 26px;
  border:1px solid transparent;
  border-radius:999px;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:.04em;
  text-decoration:none;
  cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn--gold{background:var(--gold);color:var(--brown);}
.btn--gold:hover{background:#E4B227;color:var(--brown);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.btn--blue{background:var(--blue-deep);color:var(--white);}
.btn--blue:hover{background:#0A559E;color:var(--white);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
.btn--ghost{background:transparent;color:var(--brown);border-color:rgba(139,90,43,.45);}
.btn--ghost:hover{background:rgba(246,227,168,.5);color:var(--brown);transform:translateY(-2px);}
.btn--quiet{background:var(--white);color:var(--brown);border-color:rgba(59,36,18,.12);box-shadow:0 8px 22px -18px rgba(59,36,18,.7);}
.btn--quiet:hover{color:var(--blue-deep);transform:translateY(-2px);}

/* 胶囊与标记 */
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid rgba(212,160,23,.45);
  background:var(--gold-soft);
  color:var(--brown);
  font-size:13px;
  letter-spacing:.05em;
  text-decoration:none;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.pill:hover{transform:translateY(-2px);box-shadow:0 12px 22px -18px rgba(59,36,18,.9);color:var(--brown);}

.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid rgba(139,90,43,.32);
  background:var(--white);
  color:var(--brown);
  font-family:var(--font-sans);
  font-size:13.5px;
  letter-spacing:.05em;
  cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.chip:hover{transform:translateY(-2px);border-color:var(--gold);}
.chip[aria-pressed="true"]{
  background:var(--gold-soft);
  border-color:var(--gold);
  color:var(--brown);
  font-weight:600;
}

.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:8px;
  background:var(--blue-mist);
  color:var(--blue-deep);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
}

/* 信息块 */
.callout{
  position:relative;
  padding:20px 24px;
  border-radius:var(--radius-m);
  background:var(--white);
  border:1px solid rgba(59,36,18,.1);
  box-shadow:0 14px 34px -30px rgba(59,36,18,.9);
  font-size:15.5px;
}
.callout::before{
  content:"";
  position:absolute;
  inset-block:14px;
  inset-inline-start:0;
  width:3px;
  border-radius:3px;
  background:var(--gold);
}
.callout--info{background:var(--blue-mist);border-color:rgba(30,144,255,.24);}
.callout--info::before{background:var(--blue);}
.callout--warn{background:#FDF3E4;border-color:rgba(180,83,9,.3);}
.callout--warn::before{background:var(--amber);}

.stat{display:flex;flex-direction:column;gap:4px;}
.stat__value{
  font-family:var(--font-serif);
  font-size:clamp(34px,4vw,52px);
  font-weight:300;
  line-height:1;
  color:var(--sand);
  font-variant-numeric:tabular-nums;
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(59,36,18,.6);
}

.rule{
  height:1px;
  border:0;
  margin:clamp(28px,4vw,56px) 0;
  background:linear-gradient(90deg,rgba(212,160,23,.75),rgba(30,144,255,.32) 55%,transparent);
}

/* ---------- 显现动效 ---------- */
.js-ready [data-reveal]{
  opacity:0;
  transform:translate3d(0,26px,0);
  transition:opacity .72s var(--ease),transform .72s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
.js-ready [data-reveal].is-revealed{
  opacity:1;
  transform:none;
}

/* ---------- 响应式收尾 ---------- */
@media (max-width:759px){
  body{font-size:16px;}
  .foot-legal{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js-ready [data-reveal]{opacity:1;transform:none;transition:none;}
  .skip-link{transition:none;}
  .btn,.pill,.chip,.nav-link,.nav-cta,.nav-toggle,.foot-link{transition:none;}
  .btn:hover,.pill:hover,.chip:hover,.nav-cta:hover,.nav-toggle:hover{transform:none;}
}