/* =========================================================
   金年会主站 · 共享样式表 /assets/site.css
   深墨蓝看板底 + 电光青交互 + 金年会金数据强调 + 珊瑚红热度
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-900:#0A1929;
  --ink-800:#102A43;
  --ink-700:#16324F;
  --cyan:#22D3EE;
  --gold:#F2C14E;
  --coral:#FF6B5A;
  --stone:#3E4A54;
  --moss:#6B8F71;
  --clay:#B96A4B;
  --cream:#F5F0E6;
  --mist:#A7C7D9;

  --line:rgba(167,199,217,.16);
  --line-strong:rgba(167,199,217,.36);
  --glass:rgba(16,42,67,.72);
  --glass-soft:rgba(10,25,41,.68);

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-cond:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1240px;
  --gutter:clamp(18px,4vw,48px);
  --r-sm:4px;
  --r-md:10px;
  --r-pill:999px;
  --shadow:0 22px 48px -28px rgba(0,0,0,.82);
  --dur:.28s;
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:140px;
}
body{
  margin:0;
  min-height:100%;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1100px 560px at 8% -8%, rgba(34,211,238,.10), transparent 62%),
    radial-gradient(900px 520px at 96% 2%, rgba(242,193,78,.07), transparent 64%),
    radial-gradient(760px 480px at 50% 108%, rgba(185,106,75,.07), transparent 66%);
  color:var(--cream);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,pre{margin: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}
img,svg,video{display:block;max-width:100%}
table{border-collapse:collapse;width:100%}
::selection{background:rgba(34,211,238,.32);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}
#main-content{display:block}
#main-content:focus{outline:none}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-cond);
  font-weight:800;
  line-height:1.14;
  letter-spacing:.005em;
  color:var(--cream);
}
h1{font-size:clamp(2.1rem,5.4vw,3.6rem);font-weight:900}
h2{font-size:clamp(1.6rem,3.6vw,2.25rem)}
h3{font-size:clamp(1.15rem,2.2vw,1.5rem);font-weight:700}
h4{font-size:1.05rem;font-weight:700;letter-spacing:.02em}
strong,b{font-weight:700;color:#fff}
small{font-size:.8rem}
.num,.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.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;
}

/* ---------- 4. 布局容器 ---------- */
.shell{
  width:min(var(--shell),100% - 2 * var(--gutter));
  margin-inline:auto;
}
.section{padding-block:clamp(40px,6.5vw,86px)}
.grid{display:grid;gap:clamp(14px,2.6vw,28px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--asym{grid-template-columns:1fr}
@media (min-width:900px){
  .grid--asym{grid-template-columns:minmax(210px,4fr) minmax(0,8fr)}
  .grid--asym-rev{grid-template-columns:minmax(0,7fr) minmax(220px,5fr)}
}

/* ---------- 5. 通用文本块与索引 ---------- */
.prose{
  max-width:72ch;
  font-size:1.02rem;
  line-height:1.8;
  color:rgba(245,240,230,.88);
}
.prose p + p{margin-top:1em}
.prose h2{margin-top:1.8em;margin-bottom:.6em}
.prose h3{margin-top:1.4em;margin-bottom:.5em}
.prose ul{margin-top:1em;display:grid;gap:.5em}
.prose li{position:relative;padding-left:1.15em}
.prose li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;background:var(--cyan);
  clip-path:polygon(0 0,100% 50%,0 100%);
}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(34,211,238,.4)}
.prose a:hover{border-bottom-color:var(--cyan)}

.index-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.14em;line-height:1.3;
  color:var(--mist);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 12px;
  background:rgba(16,42,67,.5);
}
.index-tag--hot{color:var(--coral);border-color:rgba(255,107,90,.44)}
.index-tag--gold{color:var(--gold);border-color:rgba(242,193,78,.44)}
.index-tag--ok{color:#A6CDAC;border-color:rgba(107,143,113,.5)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:.72rem 1.3rem;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:.88rem;font-weight:700;letter-spacing:.05em;line-height:1.3;
  cursor:pointer;text-align:center;
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,
             background var(--dur) ease,color var(--dur) ease,border-color var(--dur) ease;
}
.btn--gold{
  background:linear-gradient(118deg,var(--gold),#FFD97A);
  color:#241A04;
  box-shadow:0 14px 30px -18px rgba(242,193,78,.95);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(242,193,78,.85)}
.btn--cyan{
  background:linear-gradient(118deg,var(--cyan),#7FE9F7);
  color:#04222A;
  box-shadow:0 14px 30px -18px rgba(34,211,238,.9);
}
.btn--cyan:hover{transform:translateY(-2px)}
.btn--ghost{
  border-color:var(--line-strong);
  background:rgba(16,42,67,.55);
  color:var(--cream);
}
.btn--ghost:hover{border-color:var(--cyan);color:#DFF9FE}
.btn--block{width:100%}

/* ---------- 7. 面板与卡片 ---------- */
.panel{
  position:relative;
  background:linear-gradient(158deg,rgba(16,42,67,.88),rgba(10,25,41,.9));
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:clamp(18px,3vw,28px);
  box-shadow:var(--shadow);
}
.panel--glass{
  background:linear-gradient(150deg,rgba(34,211,238,.10),rgba(16,42,67,.52));
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
}
.panel--cut{clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%)}
.panel__label{
  display:block;
  font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.18em;line-height:1.3;
  color:var(--cyan);margin-bottom:.7em;
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.05em;
  color:var(--mist);
}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb__item{display:inline-flex;align-items:center;gap:6px}
.breadcrumb__sep{color:var(--stone)}
.breadcrumb__link{color:var(--mist);transition:color var(--dur) ease}
.breadcrumb__link:hover{color:var(--cyan)}
.breadcrumb__current{color:var(--gold)}

/* ---------- 9. 图片容器（页面阶段放置占位） ---------- */
.figure-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:linear-gradient(150deg,var(--ink-800),var(--ink-900));
}
.figure-frame img{width:100%;height:100%;object-fit:cover;object-position:center}
.figure-frame--wide{aspect-ratio:21 / 9}
.figure-frame--tall{aspect-ratio:3 / 4}
.figure-frame--square{aspect-ratio:1 / 1}
.figure-frame__caption{
  display:block;
  margin-top:.7em;
  font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.08em;color:var(--mist);
}
.media-strip{
  display:grid;gap:clamp(10px,2vw,20px);
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
}
.shot--court{
  background-image:
    repeating-linear-gradient(90deg,rgba(34,211,238,.08) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(0deg,rgba(34,211,238,.05) 0 1px,transparent 1px 56px),
    linear-gradient(155deg,#14304B 0%,#0A1929 66%);
}
.shot--chart{
  background-image:
    repeating-linear-gradient(115deg,rgba(242,193,78,.12) 0 2px,transparent 2px 14px),
    linear-gradient(160deg,#123047 0%,#0A1929 70%);
}
.shot--device{
  background-image:
    radial-gradient(circle at 68% 34%,rgba(34,211,238,.28),transparent 46%),
    linear-gradient(200deg,#102A43 0%,#0A1929 78%);
}
.shot--portrait{
  background-image:
    radial-gradient(circle at 40% 28%,rgba(185,106,75,.34),transparent 52%),
    radial-gradient(circle at 74% 78%,rgba(107,143,113,.28),transparent 56%),
    linear-gradient(140deg,#102A43,#0A1929 76%);
}

/* ---------- 10. 跳转链接 ---------- */
.skip-link{
  position:absolute;top:-100px;left:var(--gutter);z-index:200;
  padding:.65rem 1.1rem;
  background:var(--cyan);color:#04222A;
  font-size:.84rem;font-weight:700;border-radius:0 0 var(--r-sm) var(--r-sm);
  transition:top var(--dur) ease;
}
.skip-link:focus{top:0}

/* ---------- 11. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(10,25,41,.95),rgba(10,25,41,.76));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  transition:background var(--dur) ease,border-color var(--dur) ease;
}
.site-header.is-condensed{
  background:rgba(10,25,41,.94);
  border-bottom-color:var(--line-strong);
}
.site-header__inner{
  position:relative;
  width:min(var(--shell),100% - 2 * var(--gutter));
  margin-inline:auto;
  display:grid;
  gap:clamp(6px,1.2vw,14px);
  padding-block:12px 10px;
}
.site-header__brandrow{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:clamp(10px,2vw,26px);
  row-gap:10px;
}
.site-header__actions{
  display:flex;align-items:center;gap:10px;
  margin-left:auto;
}

/* 品牌 */
.brand{
  display:inline-flex;align-items:center;gap:12px;
  min-width:0;flex:none;
}
.brand__mark{
  flex:none;
  width:42px;height:42px;
  display:grid;place-items:center;
  font-family:var(--font-cond);
  font-size:1.2rem;font-weight:800;line-height:1;
  color:#241A04;
  background:linear-gradient(140deg,var(--gold),#FFE3A0);
  clip-path:polygon(14% 0,100% 0,86% 100%,0 100%);
  padding-bottom:1px;
}
.brand__text{display:flex;flex-direction:column;min-width:0;line-height:1.2}
.brand__name{
  font-family:var(--font-cond);
  font-size:clamp(1.02rem,2.1vw,1.28rem);
  font-weight:800;letter-spacing:.06em;color:var(--cream);
}
.brand__line{
  font-family:var(--font-mono);
  font-size:.68rem;font-weight:500;letter-spacing:.16em;
  color:var(--mist);white-space:nowrap;
}
.brand--footer .brand__mark{width:36px;height:36px;font-size:1rem}
.brand--footer .brand__name{font-size:1.05rem}
.brand--footer .brand__line{font-size:.64rem}

/* 更新胶囊 */
.update-capsule{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;
  border:1px solid rgba(34,211,238,.4);
  border-radius:var(--r-pill);
  background:linear-gradient(100deg,rgba(34,211,238,.15),rgba(34,211,238,.03));
  color:#BEF3FB;
  font-size:.78rem;font-weight:500;letter-spacing:.05em;line-height:1.3;
}
.update-capsule::before{
  content:"";flex:none;
  width:7px;height:7px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 0 rgba(34,211,238,.55);
  animation:capsulePulse 2.6s ease-out infinite;
}
@keyframes capsulePulse{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,.55)}
  70%{box-shadow:0 0 0 9px rgba(34,211,238,0)}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}
}

/* 导航 */
.site-nav__list{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:clamp(4px,1vw,10px);
}
.site-nav__link{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 15px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:.9rem;font-weight:600;letter-spacing:.05em;
  color:var(--mist);
  transition:color var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease;
}
.site-nav__link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:5px;height:2px;
  background:var(--cyan);
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--dur) ease;
}
.site-nav__link:hover{color:var(--cream);background:rgba(34,211,238,.08)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{
  background:linear-gradient(118deg,var(--cyan),#7FE9F7);
  border-color:transparent;
  color:#04222A;
  font-weight:700;
}
.site-nav__link[aria-current="page"]::after{display:none}

/* 移动按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 15px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  background:rgba(16,42,67,.6);
  color:var(--cream);
  font-size:.82rem;font-weight:600;letter-spacing:.06em;
  cursor:pointer;
  transition:border-color var(--dur) ease,background var(--dur) ease;
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bar{
  height:2px;border-radius:2px;background:var(--cyan);
  transition:transform var(--dur) ease,opacity var(--dur) ease;
}
.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)}

/* 阅读进度轨 */
.progress-rail{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(167,199,217,.12);
  pointer-events:none;
}
.progress-rail__fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
  transition:width .12s linear;
}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,104px);
  background:linear-gradient(180deg,rgba(16,42,67,.5),rgba(10,25,41,.96) 62%);
  border-top:1px solid var(--line);
}
.site-footer__inner{
  width:min(var(--shell),100% - 2 * var(--gutter));
  margin-inline:auto;
  display:grid;
  gap:clamp(28px,5vw,58px);
  padding-block:clamp(38px,6vw,72px);
}
@media (min-width:900px){
  .site-footer__inner{grid-template-columns:minmax(260px,1.05fr) 2fr}
}
.site-footer__brand{display:grid;gap:16px;align-content:start;justify-items:start}
.site-footer__note{
  max-width:36ch;
  font-size:.9rem;line-height:1.75;
  color:rgba(245,240,230,.76);
}
.site-footer__meta{
  font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.1em;
  color:var(--moss);
}
.footer-cols{
  display:grid;
  gap:clamp(20px,4vw,38px);
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:.72rem;font-weight:600;letter-spacing:.2em;
  color:var(--cyan);
  margin-bottom:14px;
  padding-bottom:8px;
  border-bottom:1px solid rgba(34,211,238,.22);
}
.footer-col__list{display:grid;gap:10px}
.footer-link{
  display:inline-block;
  font-size:.9rem;
  color:var(--cream);opacity:.76;
  transition:opacity var(--dur) ease,color var(--dur) ease,transform var(--dur) ease;
}
.footer-link:hover{opacity:1;color:var(--cyan);transform:translateX(3px)}
.site-footer__legal{
  border-top:1px solid var(--line);
  padding-block:20px 26px;
  display:flex;flex-wrap:wrap;gap:8px 30px;justify-content:space-between;
}
.site-footer__legal-line{
  font-family:var(--font-mono);
  font-size:.75rem;line-height:1.7;letter-spacing:.03em;
  color:var(--mist);
  word-break:break-word;
}

/* ---------- 13. 进场动效协议 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.22,.7,.3,1);
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1100px){
  .update-capsule{font-size:.74rem;padding:6px 12px}
  .site-nav__link{padding:8px 12px;font-size:.86rem}
  .site-nav__link::after{left:12px;right:12px}
}
@media (max-width:880px){
  :root{--gutter:clamp(16px,4vw,24px)}
  html{scroll-padding-top:120px}
  .nav-toggle{display:inline-flex}
  .site-header__brandrow{gap:10px}
  .site-header__actions{width:100%;justify-content:space-between}
  .site-header__cta{flex:1 1 auto}
  .site-nav{
    position:absolute;
    inset-inline:0;
    top:calc(100% - 2px);
    z-index:90;
    max-height:0;
    opacity:0;
    visibility:hidden;
    overflow:hidden;
    background:linear-gradient(180deg,rgba(16,42,67,.985),rgba(10,25,41,.985));
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--shadow);
    transition:max-height .34s ease,opacity .24s ease,visibility .24s;
  }
  .site-nav[data-open]{
    max-height:74vh;
    opacity:1;
    visibility:visible;
    overflow-y:auto;
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:10px;
  }
  .site-nav__link{
    justify-content:space-between;
    padding:13px 14px;
    border-radius:var(--r-sm);
    font-size:.96rem;
  }
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{
    background:linear-gradient(118deg,rgba(34,211,238,.24),rgba(34,211,238,.06));
    border-color:rgba(34,211,238,.5);
    color:var(--cream);
  }
  .site-nav__link[aria-current="page"]::before{
    content:"";width:7px;height:7px;border-radius:50%;
    background:var(--gold);flex:none;order:-1;margin-right:10px;
  }
}
@media (max-width:560px){
  .brand__line{letter-spacing:.1em;font-size:.62rem}
  .update-capsule{order:3;width:100%;justify-content:flex-start}
  .site-header__cta{padding:.66rem 1rem;font-size:.82rem}
  .site-footer__legal{flex-direction:column;gap:10px}
  .btn{width:100%}
  .btn--inline{width:auto}
}
@media (min-width:881px){
  .site-nav{display:block}
}

/* ---------- 15. 减少动效偏好 ---------- */
@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;
  }
  [data-reveal]{opacity:1!important;transform:none!important}
  .update-capsule::before{animation:none;box-shadow:0 0 0 0 rgba(34,211,238,.55)}
  .btn:hover,.footer-link:hover{transform:none}
}