/* ==========================================================================
   金年会 · 共享外壳样式表 (/assets/site.css)
   蓝图网格框架 + 珠宝色分区 + 控制台式数据组件
   ========================================================================== */

/* 1. 设计变量 -------------------------------------------------------------- */
:root{
  --ink-900:#050D18;
  --ink-800:#0A1728;
  --ink-700:#0E2035;
  --ink-600:#132B45;
  --cyan:#2BE0D6;
  --cyan-deep:#1F8FA6;
  --gold:#F2B33D;
  --gold-soft:#FFD98A;
  --wine:#6B2237;
  --indigo:#2A2A6E;
  --live:#37D67A;
  --text:#E7EEF7;
  --text-dim:#8FA2B8;
  --line:rgba(143,162,184,.16);
  --line-soft:rgba(143,162,184,.10);
  --line-cyan:rgba(43,224,214,.32);
  --shell:1240px;
  --gutter:clamp(16px,4vw,32px);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC",sans-serif;
  --font-heading:"Archivo","Inter","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}

/* 2. 重置与基础排版 -------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink-800);
  background-image:
    linear-gradient(to right, rgba(143,162,184,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143,162,184,.04) 1px, transparent 1px);
  background-size:96px 96px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
@media (max-width:700px){
  body{font-size:15.5px;background-size:64px 64px}
}
img,svg,video{max-width:100%;height:auto;display:block}
figure{margin:0}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
li{margin:0 0 .35em}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-heading);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.01em;
  margin:0 0 .6em;
  color:var(--text);
}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.08}
h2{font-size:clamp(1.5rem,2.8vw,2.1rem)}
h3{font-size:1.24rem;line-height:1.32}
h4{font-size:1.05rem}
p{margin:0 0 1.1em}
strong{color:#fff;font-weight:700}
a{color:var(--cyan);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--gold-soft)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:1px}
::selection{background:rgba(43,224,214,.28);color:#fff}

/* 3. 跳转链接 -------------------------------------------------------------- */
.skip-link{
  position:absolute;
  left:14px;
  top:-70px;
  z-index:200;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink-900);
  font-family:var(--font-heading);
  font-weight:700;
  font-size:14px;
  border-radius:2px;
  transition:top var(--ease);
}
.skip-link:focus{top:14px;color:var(--ink-900);text-decoration:none}

/* 4. 容器与网格 ------------------------------------------------------------ */
.shell{width:min(100% - (var(--gutter) * 2), var(--shell));margin-inline:auto}
.shell--narrow{width:min(100% - (var(--gutter) * 2), 880px);margin-inline:auto}
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid-12{grid-template-columns:repeat(12,minmax(0,1fr))}
.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. 章节与分区 ------------------------------------------------------------ */
.section{padding:clamp(46px,6.5vw,92px) 0;border-top:1px solid var(--line-soft)}
.section--tight{padding:clamp(30px,4vw,56px) 0}
.section--wine{
  background:linear-gradient(180deg, rgba(107,34,55,.58), rgba(107,34,55,.20));
  border-top-color:rgba(242,179,61,.20);
}
.section--indigo{
  background:linear-gradient(180deg, rgba(42,42,110,.52), rgba(42,42,110,.18));
  border-top-color:rgba(43,224,214,.20);
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px 24px;
  margin-bottom:clamp(22px,3vw,38px);
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.section-head h2,.section-head h3{margin:0}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
  font-family:var(--font-heading);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan)}
.lead{font-size:clamp(1.02rem,1.5vw,1.18rem);line-height:1.72;color:#D3DFEE}
.divider{height:1px;border:0;background:var(--line);margin:clamp(20px,3vw,36px) 0}

/* 6. 按钮 ------------------------------------------------------------------ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  padding:.72em 1.35em;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-heading);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  transition:background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn:hover{text-decoration:none}
.btn--gold{
  background:var(--gold);
  border-color:var(--gold);
  color:var(--ink-900);
  box-shadow:0 8px 22px -12px rgba(242,179,61,.9);
}
.btn--gold:hover{background:var(--gold-soft);border-color:var(--gold-soft);color:var(--ink-900)}
.btn--gold:active{background:#DDA02C;border-color:#DDA02C}
.btn--ghost{background:transparent;border-color:rgba(143,162,184,.34);color:var(--text)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(43,224,214,.08)}
.btn--cyan{background:rgba(43,224,214,.12);border-color:var(--line-cyan);color:var(--cyan)}
.btn--cyan:hover{background:rgba(43,224,214,.2);color:#fff;border-color:var(--cyan)}
.btn--block{width:100%}

/* 7. 状态与标签 ------------------------------------------------------------ */
.status-dot{
  display:inline-block;
  width:7px;
  height:7px;
  margin-right:8px;
  border-radius:50%;
  background:var(--live);
  box-shadow:0 0 0 3px rgba(55,214,122,.16);
  vertical-align:middle;
  flex:none;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid var(--line);
  font-family:var(--font-heading);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-dim);
}
.tag--cyan{color:var(--cyan);border-color:var(--line-cyan);background:rgba(43,224,214,.07)}
.tag--gold{color:var(--gold);border-color:rgba(242,179,61,.34);background:rgba(242,179,61,.07)}

/* 8. 数据组件 -------------------------------------------------------------- */
.num{
  font-family:var(--font-display);
  font-weight:900;
  font-variant-numeric:tabular-nums;
  line-height:.9;
  letter-spacing:-.01em;
}
.num--xl{font-size:clamp(3.2rem,9vw,7rem)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__num{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.9rem,4.6vw,3.1rem);
  line-height:.92;
  font-variant-numeric:tabular-nums;
  color:var(--text);
}
.stat__label{font-size:12.5px;letter-spacing:.03em;color:var(--text-dim)}
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line);
  background:rgba(14,32,53,.58);
}
.panel--wine{background:linear-gradient(160deg, rgba(107,34,55,.52), rgba(10,23,40,.42));border-color:rgba(242,179,61,.20)}
.panel--indigo{background:linear-gradient(160deg, rgba(42,42,110,.48), rgba(10,23,40,.42));border-color:rgba(43,224,214,.20)}

/* 9. 面包屑 ---------------------------------------------------------------- */
.breadcrumbs{font-size:12.5px;letter-spacing:.02em}
.breadcrumbs__list{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.breadcrumbs__item{display:flex;align-items:center;margin:0}
.breadcrumbs__item + .breadcrumbs__item::before{content:"/";margin:0 10px;color:rgba(143,162,184,.5)}
.breadcrumbs__item a{color:var(--text-dim);border-bottom:1px solid transparent;padding-bottom:1px}
.breadcrumbs__item a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumbs__item[aria-current="page"]{color:var(--text)}

/* 10. 图片容器（页面阶段放置图片） ----------------------------------------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(155deg, rgba(31,143,166,.24), rgba(5,13,24,.92) 72%);
}
.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(90deg, rgba(43,224,214,.10) 0 1px, transparent 1px 28px);
  opacity:.55;
  pointer-events:none;
}
.media-frame--21x9{aspect-ratio:21 / 9}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame__img{position:relative;width:100%;height:100%;object-fit:cover}
.media-frame__ph{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family:var(--font-display);
  font-size:13px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:rgba(143,162,184,.55);
}
.media-frame__cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:10px 12px;
  font-size:12px;
  line-height:1.5;
  color:var(--text-dim);
  background:linear-gradient(to top, rgba(5,13,24,.94), rgba(5,13,24,0));
}

/* 11. 刻度带 --------------------------------------------------------------- */
.tick-rail{
  height:7px;
  border-bottom:1px solid var(--line-soft);
  background-image:repeating-linear-gradient(90deg, rgba(43,224,214,.34) 0 1px, transparent 1px 24px);
}
.tick-rail--flip{
  border-bottom:0;
  border-top:1px solid var(--line);
  background-image:repeating-linear-gradient(90deg, rgba(143,162,184,.22) 0 1px, transparent 1px 24px);
}

/* 12. 页头框架 ------------------------------------------------------------- */
.scroll-rail{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:5;
  background:rgba(143,162,184,.12);
  pointer-events:none;
}
.scroll-rail__fill{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg, var(--cyan-deep), var(--cyan) 58%, var(--gold));
  box-shadow:0 0 12px rgba(43,224,214,.45);
  transition:width 140ms linear;
}
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,13,24,.94);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.site-header__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(14px,2vw,28px);
  width:min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline:auto;
  padding:13px 0;
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);text-decoration:none}
.brand:hover{text-decoration:none;color:var(--text)}
.brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  flex:none;
  width:38px;
  height:38px;
  border:1px solid var(--line-cyan);
  background:linear-gradient(140deg, rgba(43,224,214,.18), rgba(5,13,24,.92));
  font-family:var(--font-heading);
  font-size:19px;
  font-weight:800;
  line-height:1;
  color:var(--cyan);
  transition:border-color var(--ease),color var(--ease);
}
.brand__mark::after{content:"";position:absolute;right:-1px;bottom:-1px;width:8px;height:8px;background:var(--gold)}
.brand:hover .brand__mark{border-color:var(--cyan);color:#fff}
.brand__body{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__line{font-family:var(--font-heading);font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text);white-space:nowrap}
.brand__tagline{font-size:11.5px;line-height:1.4;color:var(--text-dim);white-space:nowrap}

/* 导航 */
.site-nav{display:flex;align-items:center;justify-self:center;min-width:0}
.site-nav__list{display:flex;align-items:stretch;list-style:none;margin:0;padding:0;border-left:1px solid var(--line)}
.site-nav__item{margin:0;display:flex}
.site-nav__link{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:2px;
  padding:8px 12px;
  border-right:1px solid var(--line);
  font-family:var(--font-heading);
  font-size:13.5px;
  font-weight:600;
  line-height:1.25;
  color:var(--text-dim);
  white-space:nowrap;
  transition:color var(--ease),background-color var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:3px;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.site-nav__link:hover{color:var(--text);background:rgba(43,224,214,.07);text-decoration:none}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--cyan)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__idx{font-family:var(--font-display);font-size:10px;font-weight:700;letter-spacing:.16em;color:rgba(143,162,184,.75)}
.site-nav__link[aria-current="page"] .site-nav__idx{color:var(--cyan)}
.site-nav__foot{display:none}

/* 页头右侧 */
.header-actions{display:flex;align-items:center;gap:12px;justify-self:end}
.header-actions__cta{white-space:nowrap}
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
  padding:7px 12px;
  border:1px solid var(--line);
  background:rgba(10,23,40,.7);
  font-size:12.5px;
  line-height:1.3;
  color:var(--text-dim);
  white-space:nowrap;
  transition:border-color var(--ease),color var(--ease);
}
.status-chip__dot{
  flex:none;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--live);
  box-shadow:0 0 0 3px rgba(55,214,122,.16);
}
.status-chip__hint{
  max-width:0;
  overflow:hidden;
  opacity:0;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  transition:max-width 240ms ease,opacity 160ms ease,margin-left 240ms ease;
}
.status-chip:hover,.status-chip:focus-within{border-color:var(--line-cyan);color:var(--text)}
.status-chip:hover .status-chip__hint,.status-chip:focus-within .status-chip__hint{max-width:170px;opacity:1;margin-left:6px}

/* 移动端开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  border:1px solid var(--line);
  background:rgba(10,23,40,.7);
  color:var(--text);
  font-family:var(--font-heading);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  cursor:pointer;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.nav-toggle:hover{border-color:var(--line-cyan);color:var(--cyan)}
.nav-toggle__bars{display:flex;flex-direction:column;justify-content:space-between;width:18px;height:11px}
.nav-toggle__bars span{display:block;width:100%;height:1px;background:currentColor;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) 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(-5px) rotate(-45deg)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}

html.nav-open{overflow:hidden}

/* 13. 页脚 ---------------------------------------------------------------- */
.site-footer{
  position:relative;
  margin-top:clamp(46px,7vw,96px);
  background:var(--ink-900);
  border-top:1px solid var(--line);
  color:var(--text-dim);
}
.site-footer__inner{
  width:min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline:auto;
  padding:clamp(32px,4.5vw,58px) 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(240px,1.35fr) repeat(3, minmax(118px,.65fr));
  gap:clamp(20px,3vw,40px);
  padding-bottom:clamp(24px,3vw,38px);
  border-bottom:1px solid var(--line);
}
.footer-brand__link{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}
.footer-brand__link:hover{color:var(--cyan);text-decoration:none}
.footer-brand__name{font-family:var(--font-heading);font-size:16px;font-weight:800}
.footer-brand__line{margin:14px 0 12px;max-width:36ch;font-size:13.5px;line-height:1.72;color:var(--text-dim)}
.footer-brand__status{display:flex;align-items:center;margin:0;font-size:12.5px;letter-spacing:.02em;color:var(--text-dim)}
.footer-col__title{
  margin:0 0 14px;
  font-family:var(--font-heading);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-col__list{display:grid;gap:9px;list-style:none;margin:0;padding:0}
.footer-col__list li{margin:0}
.footer-col__link{
  display:inline-block;
  font-size:14px;
  color:var(--text);
  padding-bottom:1px;
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.footer-col__link:hover{color:var(--cyan);border-bottom-color:var(--cyan);text-decoration:none}
.footer-contact{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:clamp(16px,2.4vw,30px);
  padding:clamp(22px,3vw,34px) 0;
  border-bottom:1px solid var(--line);
}
.footer-contact__field{min-width:0}
.footer-contact__label{
  display:block;
  margin-bottom:8px;
  font-family:var(--font-heading);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--text-dim);
}
.footer-contact__value{margin:0;font-size:14.5px;color:var(--text);word-break:break-word}
.footer-contact__note{margin:0;font-size:12.5px;line-height:1.7;color:var(--text-dim)}
.copy-mail{
  margin-left:10px;
  padding:3px 9px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-dim);
  font-family:var(--font-heading);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.06em;
  cursor:pointer;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.copy-mail:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(43,224,214,.08)}
.copy-mail[data-copied]{border-color:var(--live);color:var(--live);background:rgba(55,214,122,.1)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
  padding-top:20px;
  font-size:12.5px;
  color:var(--text-dim);
}
.footer-bottom__legal{margin:0;font-family:var(--font-heading);letter-spacing:.08em;color:var(--text-dim)}
.footer-bottom__copy{margin:0}

/* 14. 响应式 -------------------------------------------------------------- */
@media (max-width:1280px){
  .brand__tagline{display:none}
}
@media (max-width:1100px){
  .site-header__inner{grid-template-columns:auto auto;justify-content:space-between}
  .nav-toggle{display:inline-flex}
  .site-nav{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    max-height:calc(100vh - 118px);
    overflow-y:auto;
    padding:8px clamp(16px,4vw,32px) 30px;
    background:var(--ink-900);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line-cyan);
    box-shadow:0 30px 44px -32px rgba(0,0,0,.95);
  }
  .site-nav[data-open]{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;border-left:0}
  .site-nav__item{display:block}
  .site-nav__link{
    flex-direction:row;
    align-items:baseline;
    gap:14px;
    padding:16px 4px;
    border-right:0;
    border-bottom:1px solid var(--line);
    font-size:19px;
  }
  .site-nav__link::after{left:4px;right:4px;bottom:6px}
  .site-nav__idx{min-width:26px;font-size:11px}
  .site-nav__foot{display:grid;gap:12px;margin-top:18px}
  .site-nav__meta{
    display:flex;
    align-items:center;
    margin:0;
    font-size:12.5px;
    color:var(--text-dim);
  }
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
  .footer-contact{grid-template-columns:repeat(2, minmax(0,1fr))}
}
@media (max-width:760px){
  .header-actions__cta{display:none}
  .tick-rail{background-size:auto}
  .tick-rail,.tick-rail--flip{background-image:repeating-linear-gradient(90deg, rgba(43,224,214,.28) 0 1px, transparent 1px 16px)}
}
@media (max-width:640px){
  .status-chip{padding:8px}
  .status-chip__text,.status-chip__hint{display:none}
  .status-chip:hover .status-chip__hint{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-contact{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* 15. 无障碍与减弱动效 ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .scroll-rail__fill{transition:none}
}