/* ===========================================================
   乐鱼看台 · 共享样式 /assets/site.css
   1 令牌  2 基础  3 排版  4 布局  5 组件  6 头部  7 页脚  8 动效
   =========================================================== */

/* ---------- 1. 令牌 ---------- */
:root{
  --c-deep:#081826;
  --c-deep-2:#0E2A45;
  --c-line:#1B3C5A;
  --c-cyan:#1FF2D0;
  --c-cyan-deep:#0FA68F;
  --c-coral:#FF6B4A;
  --c-yellow:#FFC93C;
  --c-cream:#EDE8DC;
  --c-rock:#8A9088;
  --c-clay:#C4794F;

  --font-display:"Alibaba PuHuiTi 3.0 105 Heavy","Noto Sans SC","Source Han Sans Heavy","PingFang SC",sans-serif;
  --font-heading:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --header-h:78px;
  --container:1240px;
  --gutter:clamp(16px,3.4vw,40px);
  --cut:16px;
  --chamfer:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  --slash:-6deg;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 24px 60px -40px rgba(0,0,0,.95);
}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg{display:block;max-width:100%;}
button{border:0;background:none;color:inherit;font:inherit;cursor:pointer;}
a{color:inherit;text-decoration:none;}
table{border-collapse:collapse;width:100%;}

html{background-color:var(--c-deep);}
body{
  min-height:100%;
  background-color:var(--c-deep);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(31,242,208,.10),transparent 68%),
    radial-gradient(760px 460px at 88% 0%,rgba(255,107,74,.08),transparent 70%),
    radial-gradient(700px 420px at 50% 120%,rgba(15,166,143,.10),transparent 72%),
    repeating-linear-gradient(0deg,rgba(237,232,220,.022) 0 1px,transparent 1px 4px);
  background-attachment:fixed;
  color:var(--c-cream);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px;}
::selection{background:var(--c-cyan);color:var(--c-deep);}

.skip-link{
  position:fixed;left:18px;top:-90px;z-index:90;
  padding:11px 20px;background:var(--c-cyan);color:var(--c-deep);
  font-weight:700;font-size:14px;letter-spacing:.04em;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  transition:top .22s var(--ease);
}
.skip-link:focus{top:14px;}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4,h5{font-family:var(--font-heading);font-weight:700;line-height:1.25;color:var(--c-cream);}
.display{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(2.4rem,6vw,5.5rem);
  letter-spacing:-.03em;line-height:1.02;
}
.section-title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(1.6rem,3.4vw,2.8rem);
  letter-spacing:-.03em;line-height:1.08;
}
.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(--c-cyan);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--c-cyan);transform:rotate(var(--slash));}
.lede{font-size:clamp(1rem,1.15vw,1.125rem);color:rgba(237,232,220,.82);max-width:62ch;}
.annot{
  font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.18em;color:var(--c-rock);text-transform:uppercase;
}
.annot--vertical{writing-mode:vertical-rl;text-orientation:mixed;}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.score-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:700;
  font-size:clamp(2rem,4.4vw,3.4rem);line-height:1;color:var(--c-coral);
}
.score-num--cyan{color:var(--c-cyan);}
.prose{display:grid;gap:1.1em;max-width:760px;line-height:1.85;color:rgba(237,232,220,.86);}
.prose h2,.prose h3{margin-top:.4em;}
.prose strong{color:var(--c-cream);}
.prose a{color:var(--c-cyan);border-bottom:1px solid rgba(31,242,208,.5);}
.prose li{position:relative;padding-left:18px;}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:2px;background:var(--c-cyan);}

/* ---------- 4. 布局 ---------- */
.container{width:min(100% - (var(--gutter) * 2),var(--container));margin-inline:auto;}
.site-main{display:block;padding-top:calc(var(--header-h) + clamp(24px,4vw,56px));}
.site-main--overlay{padding-top:0;}
.site-main:focus{outline:none;}
.section{padding:clamp(48px,7vw,96px) 0;}
.section-head{display:grid;gap:14px;max-width:760px;margin-bottom:clamp(24px,3vw,40px);}
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(20px,2.4vw,32px);}
.col-main{grid-column:span 7;}
.col-side{grid-column:span 3;}
.col-rail{grid-column:span 2;}
.col-half{grid-column:span 6;}
.col-full{grid-column:span 12;}
.glow-field{
  position:relative;
  background-image:
    radial-gradient(120% 80% at 16% 0%,rgba(31,242,208,.10),transparent 62%),
    radial-gradient(90% 70% at 92% 10%,rgba(255,107,74,.09),transparent 66%);
}
.divider-slash{
  height:2px;margin:clamp(32px,5vw,64px) 0;
  background:linear-gradient(90deg,transparent,var(--c-line) 16%,var(--c-line) 84%,transparent);
  transform:rotate(var(--slash));transform-origin:left center;
}

/* ---------- 5. 组件 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;font-size:14px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn--solid{background:var(--c-cyan);color:var(--c-deep);}
.btn--solid:hover{background:var(--c-yellow);}
.btn--ghost{background:rgba(14,42,69,.5);border-color:var(--c-line);color:var(--c-cream);}
.btn--ghost:hover{border-color:var(--c-cyan);color:var(--c-cyan);}
.btn--coral{background:var(--c-coral);color:#1A0B06;}
.btn--coral:hover{background:var(--c-yellow);color:var(--c-deep);}
.btn:active{transform:translateY(1px);}

.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--c-rock);border:1px solid var(--c-line);background:rgba(8,24,38,.6);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}
.tag--round{color:var(--c-yellow);border-color:rgba(255,201,60,.55);background:rgba(255,201,60,.08);}
.tag--time{color:var(--c-cyan);border-color:rgba(31,242,208,.5);background:rgba(31,242,208,.08);}
.tag--history{color:var(--c-clay);border-color:rgba(196,121,79,.55);background:rgba(196,121,79,.10);}
.tag--alert{color:var(--c-coral);border-color:rgba(255,107,74,.55);background:rgba(255,107,74,.10);}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}

.card{
  position:relative;padding:clamp(18px,2vw,26px);
  background:var(--c-deep-2);border:1px solid var(--c-line);
  clip-path:var(--chamfer);
  transition:border-color .24s var(--ease),transform .24s var(--ease),background-color .24s var(--ease);
}
.card:hover{border-color:var(--c-cyan);transform:translateY(-2px);}
.card__meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.card__title{font-size:clamp(1.05rem,1.4vw,1.3rem);font-weight:700;line-height:1.35;}
.card__body{margin-top:10px;font-size:14px;line-height:1.75;color:rgba(237,232,220,.78);}
.card--score{display:grid;gap:10px;}
.panel{
  padding:clamp(22px,3vw,40px);
  background-image:linear-gradient(160deg,rgba(14,42,69,.95),rgba(8,24,38,.95));
  border:1px solid var(--c-line);clip-path:var(--chamfer);box-shadow:var(--shadow);
}

.media{
  position:relative;overflow:hidden;
  background:var(--c-deep-2);border:1px solid var(--c-line);clip-path:var(--chamfer);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(70% 60% at 24% 12%,rgba(31,242,208,.16),transparent 68%),
             radial-gradient(60% 60% at 88% 92%,rgba(255,107,74,.12),transparent 70%);
}
.media__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.media--16x9{aspect-ratio:16/9;}
.media--21x9{aspect-ratio:21/9;}
.media--4x3{aspect-ratio:4/3;}
.media--3x4{aspect-ratio:3/4;}
.media--1x1{aspect-ratio:1/1;}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:16px 18px;
  font-size:12px;letter-spacing:.06em;color:var(--c-cream);
  background-image:linear-gradient(0deg,rgba(8,24,38,.94),rgba(8,24,38,0));
}

.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--c-rock);}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumbs__link{border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.breadcrumbs__link:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan);}
.breadcrumbs__sep{color:var(--c-line);}

.snap-strip{
  display:flex;gap:clamp(14px,1.6vw,20px);
  overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;padding-bottom:14px;
  scrollbar-width:thin;scrollbar-color:var(--c-line) transparent;
}
.snap-strip > *{flex:0 0 min(320px,80vw);scroll-snap-align:start;}
.snap-strip::-webkit-scrollbar{height:6px;}
.snap-strip::-webkit-scrollbar-thumb{background:var(--c-line);}
[data-drag-scroll]{cursor:grab;}
[data-drag-scroll]:active{cursor:grabbing;}

/* ---------- 6. 头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background-color:transparent;border-bottom:1px solid transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header[data-scrolled="true"]{
  background-color:rgba(8,24,38,.95);
  border-bottom-color:var(--c-line);
  box-shadow:0 22px 44px -34px rgba(0,0,0,.95);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.header-rail{
  position:relative;z-index:3;
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  min-height:var(--header-h);
}
.nav-scrim{
  position:fixed;inset:0;z-index:1;
  background-color:rgba(8,24,38,.76);
  opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.site-header[data-open="true"] .nav-scrim{opacity:1;visibility:visible;}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand__mark{
  position:relative;width:34px;height:34px;flex:0 0 auto;
  background-image:linear-gradient(150deg,var(--c-cyan),var(--c-cyan-deep));
  clip-path:var(--chamfer);
}
.brand__mark::after{
  content:"";position:absolute;left:6px;right:6px;top:calc(50% - 1px);height:2px;
  background:var(--c-deep);transform:rotate(var(--slash));
}
.brand__pulse{
  position:absolute;right:-3px;bottom:-3px;width:9px;height:9px;border-radius:50%;
  background:var(--c-coral);animation:pulse 2.4s var(--ease) infinite;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-family:var(--font-display);font-weight:900;font-size:clamp(1.05rem,1.5vw,1.3rem);letter-spacing:-.02em;color:var(--c-cream);}
.brand__tagline{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:var(--c-rock);text-transform:uppercase;}

.nav{display:flex;align-items:center;gap:clamp(10px,1.6vw,24px);margin-left:auto;}
.nav__list{display:flex;align-items:center;gap:2px;}
.nav__link{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15px;font-weight:500;color:rgba(237,232,220,.78);
  transition:color .2s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-cyan);transform:scaleX(0);transform-origin:left center;
  transition:transform .26s var(--ease);
}
.nav__link:hover,.nav__link:focus-visible{color:var(--c-cream);}
.nav__link:hover::after,.nav__link:focus-visible::after{transform:scaleX(1);}
.nav__link[aria-current="page"]{color:var(--c-cyan);}
.nav__link[aria-current="page"]::after{transform:scaleX(1);}
.nav__utility{
  display:flex;align-items:center;gap:14px;
  padding-left:clamp(10px,1.6vw,20px);border-left:1px solid var(--c-line);
}
.nav__utility-label{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--c-rock);text-transform:uppercase;}
.util-link{
  font-size:13px;color:var(--c-rock);letter-spacing:.04em;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.util-link:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan);}

.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.live-chip{
  display:inline-flex;align-items:center;gap:8px;padding:7px 12px;
  font-size:12px;letter-spacing:.08em;color:var(--c-cream);
  background-color:rgba(14,42,69,.65);border:1px solid var(--c-line);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.live-chip:hover{border-color:var(--c-cyan);background-color:rgba(31,242,208,.10);}
.live-chip__dot{width:7px;height:7px;border-radius:50%;background:var(--c-coral);animation:pulse 2s var(--ease) infinite;}
.live-chip__label{color:var(--c-rock);}
.live-chip__value{font-family:var(--font-mono);color:var(--c-cyan);letter-spacing:.14em;}
.search-trigger{
  display:grid;place-items:center;width:38px;height:38px;
  color:var(--c-rock);border:1px solid var(--c-line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.search-trigger__icon{width:18px;height:18px;}
.search-trigger:hover{color:var(--c-deep);background-color:var(--c-cyan);border-color:var(--c-cyan);}
.nav-toggle{
  display:none;align-items:center;gap:9px;padding:8px 12px;
  color:var(--c-cream);border:1px solid var(--c-line);font-size:13px;letter-spacing:.08em;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{color:var(--c-cyan);border-color:var(--c-cyan);}
.nav-toggle__bars{display:grid;gap:4px;width:18px;}
.nav-toggle__bars i{display:block;height:2px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.site-header[data-open="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg);}
.site-header[data-open="true"] .nav-toggle__bars i:nth-child(2){opacity:0;}
.site-header[data-open="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-toggle__text{white-space:nowrap;}
.header-scan{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background-image:linear-gradient(90deg,transparent,rgba(31,242,208,.20),transparent);
}
.header-scan__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(var(--progress,0));transform-origin:left center;
  background-image:linear-gradient(90deg,var(--c-cyan-deep),var(--c-cyan) 68%,var(--c-yellow));
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(64px,9vw,120px);
  background-color:var(--c-deep);
  border-top:1px solid var(--c-line);color:var(--c-cream);
}
.footer-edge{height:3px;background-image:linear-gradient(90deg,var(--c-cyan) 0%,var(--c-cyan-deep) 34%,rgba(31,242,208,.08) 68%,transparent 100%);}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(260px,1.6fr) repeat(3,minmax(118px,.62fr)) minmax(210px,1fr);
  gap:clamp(28px,3.4vw,48px);
  padding:clamp(48px,6vw,76px) 0 clamp(32px,4vw,48px);
}
.footer-brand__line{font-family:var(--font-display);font-weight:900;font-size:clamp(1.05rem,1.6vw,1.3rem);letter-spacing:-.01em;line-height:1.35;}
.footer-brand__note{margin-top:12px;max-width:34ch;font-size:14px;line-height:1.7;color:var(--c-rock);}
.footer-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.footer-col__heading{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--c-cyan);
}
.footer-col__list{display:grid;gap:10px;margin-top:16px;}
.footer-col__link{
  position:relative;display:inline-block;font-size:14px;color:rgba(237,232,220,.76);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col__link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;
  background:var(--c-cyan);transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.footer-col__link:hover{color:var(--c-cyan);transform:translateX(3px);}
.footer-col__link:hover::after{transform:scaleX(1);}
.footer-contact{min-width:0;}
.footer-contact__list{display:grid;gap:14px;margin-top:16px;}
.footer-contact__item{display:grid;gap:3px;}
.footer-contact__label{font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--c-rock);}
.footer-contact__value{font-size:14px;line-height:1.6;color:rgba(237,232,220,.9);word-break:break-word;}
.footer-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  padding:20px 0 30px;border-top:1px solid var(--c-line);
  font-size:12px;color:var(--c-rock);line-height:1.6;
}
.footer-meta__icp{font-family:var(--font-mono);letter-spacing:.06em;color:rgba(237,232,220,.72);}
.footer-meta__note{flex:1 1 320px;}
.footer-meta__year{font-family:var(--font-mono);white-space:nowrap;}

/* ---------- 8. 动效 ---------- */
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,107,74,.55);}
  70%{box-shadow:0 0 0 10px rgba(255,107,74,0);}
  100%{box-shadow:0 0 0 0 rgba(255,107,74,0);}
}
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- 9. 响应式 ---------- */
@media (max-width:1180px) and (min-width:981px){
  .nav__utility{display:none;}
}
@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-brand{grid-column:span 3;}
  .footer-contact{grid-column:span 3;}
}
@media (max-width:980px){
  :root{--header-h:68px;}
  .brand__tagline{display:none;}
  .search-trigger{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav{
    position:fixed;top:0;right:0;bottom:0;z-index:2;
    width:min(88vw,360px);margin:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:calc(var(--header-h) + 20px) 24px 36px;
    background-color:var(--c-deep-2);
    background-image:linear-gradient(200deg,rgba(31,242,208,.08),transparent 55%);
    border-left:1px solid var(--c-line);
    transform:translateX(102%);
    transition:transform .3s var(--ease);
    overflow-y:auto;overscroll-behavior:contain;
  }
  .nav[data-open="true"]{transform:translateX(0);box-shadow:-40px 0 70px -50px #000;}
  .nav__list{flex-direction:column;align-items:stretch;gap:0;}
  .nav__item + .nav__item{border-top:1px solid rgba(27,60,90,.65);}
  .nav__link{display:block;padding:16px 4px;font-size:17px;}
  .nav__link::after{left:4px;right:auto;width:26px;bottom:10px;}
  .nav__utility{
    flex-direction:column;align-items:flex-start;gap:12px;
    margin-top:26px;padding:22px 0 0;border-left:0;border-top:1px solid var(--c-line);
  }
  .util-link{font-size:14px;}
  .col-main,.col-side,.col-rail,.col-half{grid-column:span 12;}
  .grid-12{gap:clamp(16px,3vw,24px);}
}
@media (max-width:720px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand,.footer-contact{grid-column:span 2;}
  .live-chip__label{display:none;}
  .footer-meta{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:420px){
  .live-chip{display:none;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-brand,.footer-contact{grid-column:span 1;}
}
@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;transform:none;}
  .header-scan__bar{transition:none;}
}