/* ===== 鱼丸游戏站 共享样式 /assets/site.css ===== */

/* --- reset --- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%;vertical-align:middle}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit}
:where(h1,h2,h3,h4){line-height:1.25}

/* --- tokens --- */
:root{
  --yw-deep:#08182E;
  --yw-blue:#123C74;
  --yw-white:#F6F2E6;
  --yw-paper:#EDE3CE;
  --yw-orange:#FF6A1A;
  --yw-cyan:#1FD1D1;
  --yw-yellow:#FFD24A;
  --yw-purple:#6C4BE0;
  --yw-slate:#6C7E99;
  --yw-red:#E5484D;
  --yw-wrap:1240px;
  --yw-gutter:clamp(1rem,4vw,2.5rem);
  --yw-ease:cubic-bezier(0.2,0.7,0.2,1);
  --yw-dur:180ms;
  --yw-edge:2px;
  --yw-shadow:6px 6px 0 rgba(8,24,46,.16);
  --yw-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --yw-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

/* --- 中文排版基线 --- */
html{font-size:100%}
body{
  font-family:var(--yw-sans);
  font-size:clamp(1rem,.96rem + .2vw,1.125rem);
  line-height:1.75;
  color:var(--yw-deep);
  background:var(--yw-white);
  background-image:
    radial-gradient(rgba(18,60,116,.09) 1px,transparent 1px);
  background-size:22px 22px;
  background-attachment:fixed;
}
p,li{max-width:68ch}
strong{font-weight:800}
::selection{background:var(--yw-yellow);color:var(--yw-deep)}
:focus-visible{outline:2px solid var(--yw-orange);outline-offset:3px;border-radius:4px}

/* --- 容器 --- */
.yw-wrap{width:min(100% - var(--yw-gutter), var(--yw-wrap));margin-inline:auto}
.yw-main{display:block;padding-bottom:clamp(2.5rem,6vw,5rem)}
.yw-section{padding-block:clamp(2rem,5vw,4rem)}
.yw-section--ink{background:var(--yw-deep);color:var(--yw-white)}
.yw-section--blue{background:var(--yw-blue);color:var(--yw-white)}
.yw-section--paper{background:var(--yw-paper)}
.yw-section--ink p,.yw-section--blue p{color:rgba(246,242,230,.88)}

/* --- 跳转链接 --- */
.yw-skip{
  position:absolute;left:.75rem;top:-3.5rem;z-index:200;
  display:inline-block;padding:.6rem 1rem;
  background:var(--yw-orange);color:var(--yw-deep);
  font-weight:800;text-decoration:none;border-radius:12px;
  border:var(--yw-edge) solid var(--yw-deep);
  transition:top var(--yw-dur) var(--yw-ease);
}
.yw-skip:focus{top:.75rem}

/* ================= 头部命令栏 ================= */
.yw-header{
  position:sticky;top:0;z-index:100;
  background:var(--yw-blue);
  color:var(--yw-white);
  border-bottom:3px solid var(--yw-deep);
  box-shadow:0 6px 0 rgba(8,24,46,.14);
}
.yw-header__rail{
  width:min(100% - var(--yw-gutter), var(--yw-wrap));
  margin-inline:auto;
  display:flex;align-items:center;gap:clamp(.4rem,1.2vw,1rem);
  padding-block:.7rem;
  transition:padding-block var(--yw-dur) var(--yw-ease);
}
.yw-header[data-stuck] .yw-header__rail{padding-block:.35rem}

.yw-brand{
  display:inline-flex;align-items:center;gap:.6rem;
  text-decoration:none;flex:0 0 auto;
}
.yw-brand__mark{
  display:grid;place-items:center;
  width:38px;height:38px;flex:0 0 auto;
  border-radius:12px;
  background:var(--yw-cyan);color:var(--yw-deep);
  border:var(--yw-edge) solid var(--yw-deep);
  box-shadow:3px 3px 0 rgba(8,24,46,.5);
  transition:transform var(--yw-dur) var(--yw-ease);
}
.yw-brand:hover .yw-brand__mark{transform:translateY(-2px) rotate(-6deg)}
.yw-brand__text{display:flex;flex-direction:column;line-height:1.15}
.yw-brand__name{font-weight:800;font-size:1rem;letter-spacing:.02em}
.yw-brand__domain{font-family:var(--yw-mono);font-size:.66rem;letter-spacing:.08em;color:rgba(246,242,230,.6)}

.yw-nav{display:flex;align-items:center;gap:.9rem;margin-inline:auto}
.yw-nav__list{display:flex;align-items:center;gap:.15rem;flex-wrap:wrap}
.yw-nav__item{max-width:none}
.yw-nav__link{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.42rem .75rem;border-radius:999px;
  font-size:.9rem;text-decoration:none;
  color:rgba(246,242,230,.78);
  border:var(--yw-edge) solid transparent;
  transition:color var(--yw-dur) var(--yw-ease),background var(--yw-dur) var(--yw-ease),border-color var(--yw-dur) var(--yw-ease),transform var(--yw-dur) var(--yw-ease);
}
.yw-nav__link:hover{color:var(--yw-white);background:rgba(246,242,230,.12);transform:translateY(-2px)}
.yw-nav__idx{
  font-family:var(--yw-mono);font-size:.66rem;letter-spacing:.08em;
  color:var(--yw-cyan);padding:1px 3px;border-radius:4px;
}
.yw-nav__label{white-space:nowrap}
.yw-nav__link[aria-current="page"]{
  color:var(--yw-white);
  border-color:var(--yw-orange);
  background:rgba(255,106,26,.22);
  font-weight:700;
}
.yw-nav__link[aria-current="page"] .yw-nav__idx{
  background:var(--yw-orange);color:var(--yw-deep);
}
.yw-nav__utility{display:none;gap:.4rem}

.yw-burger{
  display:none;align-items:center;gap:.5rem;
  padding:.45rem .8rem;border-radius:999px;
  border:var(--yw-edge) solid rgba(246,242,230,.4);
  color:var(--yw-white);font-size:.85rem;font-weight:700;
}
.yw-burger__bars{display:grid;gap:3px;width:16px}
.yw-burger__bars i{display:block;height:2px;background:currentColor;border-radius:2px}
.yw-burger[aria-expanded="true"]{border-color:var(--yw-orange);background:rgba(255,106,26,.2)}
.yw-burger__label{font-family:var(--yw-mono);letter-spacing:.08em;font-size:.72rem}

.yw-cta{
  display:inline-flex;align-items:center;gap:.5rem;flex:0 0 auto;
  padding:.6rem 1.15rem;border-radius:999px;
  background:var(--yw-orange);color:var(--yw-deep);
  font-weight:800;text-decoration:none;
  border:var(--yw-edge) solid var(--yw-deep);
  box-shadow:0 4px 0 rgba(8,24,46,.55);
  transition:transform var(--yw-dur) var(--yw-ease),box-shadow var(--yw-dur) var(--yw-ease),padding var(--yw-dur) var(--yw-ease);
}
.yw-cta:hover{transform:translateY(-4px);box-shadow:0 8px 0 rgba(8,24,46,.55)}
.yw-cta__glyph{display:inline-grid;place-items:center}
.yw-cta__label{
  max-width:10rem;overflow:hidden;white-space:nowrap;
  transition:max-width var(--yw-dur) var(--yw-ease),opacity var(--yw-dur) var(--yw-ease);
}
@media (min-width:901px){
  .yw-header[data-stuck] .yw-cta{padding:.55rem}
  .yw-header[data-stuck] .yw-cta__label{max-width:0;opacity:0}
}

.yw-header__gauge{
  position:relative;height:4px;overflow:hidden;
  background:rgba(246,242,230,.16);
}
.yw-header__gauge span{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--yw-orange),var(--yw-yellow) 55%,var(--yw-cyan));
}

/* ================= 页脚 ================= */
.yw-footer{margin-top:clamp(3rem,7vw,6rem);background:var(--yw-deep);color:var(--yw-white)}
.yw-footer__pixelrule{
  height:6px;
  background:repeating-linear-gradient(90deg,
    var(--yw-orange) 0 12px,
    var(--yw-cyan) 12px 24px,
    var(--yw-yellow) 24px 32px,
    var(--yw-purple) 32px 44px);
}
.yw-footer__inner{
  width:min(100% - var(--yw-gutter), var(--yw-wrap));
  margin-inline:auto;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:clamp(1.5rem,3vw,2.5rem);
  padding-block:clamp(2rem,5vw,3.25rem) clamp(1.5rem,3vw,2.25rem);
}
.yw-footer__brand{max-width:34ch}
.yw-footer__logo{
  display:inline-block;
  font-weight:800;font-size:1.35rem;letter-spacing:.02em;
  padding:.15rem .7rem .25rem;
  color:var(--yw-deep);background:var(--yw-cyan);
  border:var(--yw-edge) solid var(--yw-deep);
  border-radius:14px;
  box-shadow:4px 4px 0 rgba(255,106,26,.85);
  margin-bottom:1rem;
}
.yw-footer__tagline{color:rgba(246,242,230,.82);font-size:.95rem;margin-bottom:.9rem}
.yw-footer__meta{
  font-family:var(--yw-mono);font-size:.78rem;letter-spacing:.04em;
  color:var(--yw-slate);margin-bottom:.35rem;
}
.yw-footer__coltitle{
  font-size:.8rem;font-family:var(--yw-mono);letter-spacing:.14em;
  text-transform:uppercase;color:var(--yw-yellow);
  padding-bottom:.5rem;margin-bottom:.75rem;
  border-bottom:var(--yw-edge) dashed rgba(246,242,230,.25);
}
.yw-footer__list{display:grid;gap:.5rem}
.yw-footer__link{
  display:inline-block;text-decoration:none;
  color:rgba(246,242,230,.85);font-size:.95rem;
  padding-left:1rem;position:relative;
  transition:color var(--yw-dur) var(--yw-ease),transform var(--yw-dur) var(--yw-ease);
}
.yw-footer__link::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:2px;
  background:var(--yw-cyan);transition:background var(--yw-dur) var(--yw-ease);
}
.yw-footer__link:hover{color:var(--yw-orange);transform:translateX(4px)}
.yw-footer__link:hover::before{background:var(--yw-orange)}
.yw-footer__base{
  width:min(100% - var(--yw-gutter), var(--yw-wrap));
  margin-inline:auto;
  display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;
  justify-content:space-between;align-items:center;
  padding-block:1.15rem 1.6rem;
  border-top:var(--yw-edge) solid rgba(246,242,230,.16);
}
.yw-footer__legal,.yw-footer__contact{
  font-family:var(--yw-mono);font-size:.76rem;letter-spacing:.04em;
  color:rgba(246,242,230,.62);max-width:none;
}

/* ================= 通用排版与按钮 ================= */
.yw-eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--yw-mono);font-size:.72rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--yw-blue);
  padding:.25rem .6rem;border-radius:8px;
  background:var(--yw-yellow);border:var(--yw-edge) solid var(--yw-deep);
}
.yw-section--ink .yw-eyebrow,.yw-section--blue .yw-eyebrow{color:var(--yw-deep)}
.yw-title{
  font-size:clamp(1.6rem,3.2vw,2.6rem);
  font-weight:800;letter-spacing:-.01em;
  text-shadow:4px 4px 0 var(--yw-blue);
  color:var(--yw-deep);
  margin-block:.75rem .6rem;
}
.yw-section--ink .yw-title,.yw-section--blue .yw-title{
  color:var(--yw-white);text-shadow:4px 4px 0 rgba(8,24,46,.85);
}
.yw-lede{font-size:1.05rem;color:rgba(8,24,46,.78);max-width:62ch}
.yw-section--ink .yw-lede,.yw-section--blue .yw-lede{color:rgba(246,242,230,.85)}

.yw-btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.7rem 1.35rem;border-radius:999px;
  background:var(--yw-orange);color:var(--yw-deep);
  font-weight:800;text-decoration:none;line-height:1.3;
  border:var(--yw-edge) solid var(--yw-deep);
  box-shadow:0 4px 0 rgba(8,24,46,.45);
  transition:transform var(--yw-dur) var(--yw-ease),box-shadow var(--yw-dur) var(--yw-ease),background var(--yw-dur) var(--yw-ease);
}
.yw-btn:hover{transform:translateY(-4px);box-shadow:0 8px 0 rgba(8,24,46,.45)}
.yw-btn--line{
  background:transparent;color:var(--yw-deep);
  border-color:var(--yw-deep);box-shadow:0 4px 0 rgba(8,24,46,.16);
}
.yw-section--ink .yw-btn--line,.yw-section--blue .yw-btn--line{color:var(--yw-white);border-color:var(--yw-cyan)}
.yw-btn--sm{padding:.45rem .95rem;font-size:.88rem}

.yw-tags{display:flex;flex-wrap:wrap;gap:.4rem}
.yw-tag{
  display:inline-block;padding:.2rem .6rem;border-radius:999px;
  font-family:var(--yw-mono);font-size:.7rem;letter-spacing:.08em;
  background:var(--yw-paper);color:var(--yw-deep);
  border:var(--yw-edge) solid rgba(8,24,46,.22);
}
.yw-tag--cyan{background:var(--yw-cyan);border-color:var(--yw-deep)}
.yw-tag--purple{background:var(--yw-purple);color:var(--yw-white);border-color:var(--yw-deep)}
.yw-tag--yellow{background:var(--yw-yellow);border-color:var(--yw-deep)}

/* ================= 网格与卡片 ================= */
.yw-grid{display:grid;gap:clamp(1rem,2.2vw,1.75rem)}
.yw-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.yw-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.yw-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}

.yw-card{
  position:relative;
  background:var(--yw-white);
  border:var(--yw-edge) solid var(--yw-deep);
  border-radius:18px;
  padding:clamp(1rem,2vw,1.4rem);
  box-shadow:var(--yw-shadow);
  transition:transform var(--yw-dur) var(--yw-ease),box-shadow var(--yw-dur) var(--yw-ease);
}
.yw-card:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 rgba(8,24,46,.18)}
.yw-card__title{font-size:1.15rem;font-weight:800;margin-bottom:.4rem}
.yw-card__meta{
  font-family:var(--yw-mono);font-size:.72rem;letter-spacing:.08em;
  color:var(--yw-blue);margin-bottom:.6rem;
}
.yw-card__body{font-size:.96rem;color:rgba(8,24,46,.8)}
.yw-card--paper{background:var(--yw-paper)}
.yw-card--bubble{border-radius:28px}

/* ================= 面包屑 ================= */
.yw-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;
  font-family:var(--yw-mono);font-size:.74rem;letter-spacing:.06em;
  padding-block:1.25rem .5rem;
}
.yw-crumbs__link{color:var(--yw-blue);text-decoration:none;border-bottom:2px solid var(--yw-yellow)}
.yw-crumbs__link:hover{color:var(--yw-orange)}
.yw-crumbs__sep{color:var(--yw-slate)}
.yw-crumbs__current{color:var(--yw-slate)}

/* ================= 图片容器（页面阶段使用） ================= */
.yw-frame{
  display:block;
  background:var(--yw-paper);
  border:var(--yw-edge) solid var(--yw-deep);
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--yw-shadow);
}
.yw-frame__media{
  position:relative;
  aspect-ratio:16/9;
  display:grid;place-items:center;
  background:
    repeating-linear-gradient(135deg,rgba(18,60,116,.14) 0 8px,transparent 8px 16px),
    var(--yw-white);
  overflow:hidden;
}
.yw-frame__media img{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;display:block;
}
.yw-frame__ph{
  font-family:var(--yw-mono);font-size:.74rem;letter-spacing:.1em;
  color:var(--yw-blue);text-transform:uppercase;
}
.yw-frame--4x3 .yw-frame__media{aspect-ratio:4/3}
.yw-frame--1x1 .yw-frame__media{aspect-ratio:1/1}
.yw-frame__cap{
  display:block;padding:.6rem .9rem;
  font-family:var(--yw-mono);font-size:.72rem;letter-spacing:.06em;
  color:var(--yw-deep);background:var(--yw-white);
  border-top:var(--yw-edge) solid var(--yw-deep);
}

/* ================= 装饰纹理 ================= */
.yw-net{
  background-image:radial-gradient(rgba(8,24,46,.28) 1.5px,transparent 1.5px);
  background-size:12px 12px;
}
.yw-scanlines{
  background-image:repeating-linear-gradient(180deg,rgba(8,24,46,.16) 0 1px,transparent 1px 4px);
}

/* ================= 标签页 ================= */
.yw-tabs{display:block}
.yw-tabs__list{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.25rem}
.yw-tabs__btn{
  padding:.5rem 1rem;border-radius:999px;
  font-size:.9rem;font-weight:700;
  background:var(--yw-paper);color:var(--yw-deep);
  border:var(--yw-edge) solid var(--yw-deep);
  transition:background var(--yw-dur) var(--yw-ease),color var(--yw-dur) var(--yw-ease),transform var(--yw-dur) var(--yw-ease);
}
.yw-tabs__btn:hover{transform:translateY(-2px)}
.yw-tabs__btn[aria-selected="true"]{
  background:var(--yw-orange);color:var(--yw-deep);
  box-shadow:0 3px 0 rgba(8,24,46,.5);
}
.yw-tabs__panel[hidden]{display:none}

/* ================= 显现 ================= */
.yw-reveal{
  opacity:0;transform:translateY(14px);
  transition:opacity 240ms var(--yw-ease),transform 240ms var(--yw-ease);
}
.yw-reveal[data-visible]{opacity:1;transform:none}

/* ================= 响应式 ================= */
@media (max-width:1024px){
  .yw-nav__link{padding:.4rem .55rem;font-size:.86rem}
  .yw-brand__domain{display:none}
  .yw-footer__inner{grid-template-columns:1fr 1fr}
  .yw-footer__brand{grid-column:1 / -1}
  .yw-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:900px){
  .yw-burger{display:inline-flex}
  .yw-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;
    margin:0;
    padding:1rem var(--yw-gutter) 1.5rem;
    background:var(--yw-deep);
    border-top:3px solid var(--yw-orange);
    border-bottom:3px solid var(--yw-deep);
    box-shadow:0 12px 0 rgba(8,24,46,.2);
    max-height:min(78vh,32rem);overflow-y:auto;
  }
  .yw-nav[data-open]{display:grid;gap:1rem;animation:yw-drop 200ms var(--yw-ease) both}
  .yw-nav__list{display:grid;gap:.35rem}
  .yw-nav__link{
    width:100%;justify-content:flex-start;
    padding:.7rem .9rem;border-radius:14px;
    font-size:1rem;
    border-color:rgba(246,242,230,.2);
  }
  .yw-nav__utility{display:flex;flex-wrap:wrap;border-top:2px dashed rgba(246,242,230,.25);padding-top:.9rem}
  .yw-nav__utility .yw-nav__link{width:auto;font-size:.85rem;padding:.45rem .8rem}
  .yw-header__rail{justify-content:space-between}
  .yw-cta{padding:.55rem 1rem}
  .yw-grid--3,.yw-grid--2{grid-template-columns:1fr}
  .yw-grid{grid-template-columns:1fr}
}

@keyframes yw-drop{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:none}
}

@media (max-width:600px){
  .yw-brand__name{font-size:.92rem}
  .yw-brand__mark{width:32px;height:32px}
  .yw-cta__label{display:none}
  .yw-cta{padding:.55rem}
  .yw-footer__inner{grid-template-columns:1fr}
  .yw-footer__base{flex-direction:column;align-items:flex-start}
  .yw-title{text-shadow:3px 3px 0 var(--yw-blue)}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .yw-reveal{opacity:1;transform:none}
  .yw-btn:hover,.yw-card:hover,.yw-cta:hover,.yw-nav__link:hover{transform:none}
}