/* =========================================================
   天天游艺 · play-tt.com.cn
   /assets/site.css — 共享外壳 + 基础组件
   ========================================================= */

/* ---------- 变量 ---------- */
:root{
  --ink-950:#0A0F2C;
  --ink-900:#121A3D;
  --ink-800:#1B2550;

  --neon-cyan:#2FF3C8;
  --neon-teal:#14C7A8;
  --electric-purple:#8A5CFF;
  --purple-deep:#5B2FD6;
  --warm-orange:#FF8A3D;
  --amber:#FFC24B;

  --text-primary:#F2F5FF;
  --text-secondary:#A9B4D6;
  --hairline:#2A3566;

  --surface-glass:rgba(27,37,80,.72);
  --surface-solid:rgba(18,26,61,.94);
  --cyan-soft:rgba(47,243,200,.10);
  --purple-soft:rgba(138,92,255,.14);
  --orange-soft:rgba(255,138,61,.12);

  --shell:1280px;
  --gutter:clamp(16px,4vw,40px);
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;

  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Courier New",monospace;

  --shadow-soft:0 26px 64px -32px rgba(0,0,0,.9);
  --shadow-lift:0 32px 72px -26px rgba(0,0,0,.95);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dt,dd{margin:0}
ul,ol{list-style:none;padding:0}
img,picture,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--neon-cyan);outline-offset:3px}
::selection{background:rgba(47,243,200,.3);color:var(--text-primary)}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text-primary);
  background-color:var(--ink-950);
  background-image:
    repeating-linear-gradient(115deg, rgba(242,245,255,.018) 0 2px, transparent 2px 9px),
    radial-gradient(900px 620px at 6% -8%, rgba(138,92,255,.30), transparent 62%),
    radial-gradient(860px 580px at 98% 2%, rgba(47,243,200,.20), transparent 64%),
    radial-gradient(1200px 760px at 50% 114%, rgba(91,47,214,.24), transparent 66%);
  background-attachment:fixed;
  overflow-x:hidden;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.15;letter-spacing:-.012em}
h1{font-size:clamp(40px,7vw,86px)}
h2{font-size:clamp(26px,3.6vw,42px)}
h3{font-size:clamp(20px,2.2vw,26px);line-height:1.3}
p{max-width:38em}
strong,b{font-weight:700}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 布局容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{padding-block:clamp(32px,5vw,72px)}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-block-end:clamp(22px,3vw,40px);
}
.section-head__title{font-size:clamp(24px,3.4vw,40px)}
.section-head__desc{max-width:34em;color:var(--text-secondary);font-size:15px;line-height:1.8}

/* ---------- 眉标 / 标签 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--neon-cyan);
}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor;opacity:.75}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--hairline);
  background:rgba(27,37,80,.6);
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.05em;
  color:var(--text-secondary);
  white-space:nowrap;
}
.tag--cyan{border-color:rgba(47,243,200,.45);background:var(--cyan-soft);color:var(--neon-cyan)}
.tag--purple{border-color:rgba(138,92,255,.5);background:var(--purple-soft);color:#BCA6FF}
.tag--orange{border-color:rgba(255,138,61,.5);background:var(--orange-soft);color:var(--amber)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:999px;
  background:var(--ink-800);
  color:var(--text-primary);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--orange{
  background:linear-gradient(135deg,var(--warm-orange),#FF6A2B);
  color:#210D00;
  box-shadow:0 16px 34px -18px rgba(255,138,61,1);
}
.btn--orange:hover{box-shadow:0 20px 40px -16px rgba(255,138,61,1)}
.btn--cyan{
  background:linear-gradient(135deg,var(--neon-cyan),var(--neon-teal));
  color:#04231C;
  box-shadow:0 16px 34px -18px rgba(47,243,200,.95);
}
.btn--ghost{
  background:transparent;
  border-color:var(--hairline);
  color:var(--text-primary);
}
.btn--ghost:hover{border-color:var(--neon-cyan);color:var(--neon-cyan)}
.btn--sm{padding:9px 16px;font-size:13px}
.btn--block{width:100%}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  inset-block-start:14px;
  inset-inline-start:16px;
  z-index:400;
  padding:10px 20px;
  border-radius:999px;
  background:var(--neon-cyan);
  color:var(--ink-950);
  font-size:14px;
  font-weight:700;
  transform:translateY(-180%);
  transition:transform .22s ease;
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 顶部阅读进度 ---------- */
.scroll-progress{
  position:fixed;
  inset-block-start:0;
  inset-inline:0;
  z-index:300;
  height:3px;
  pointer-events:none;
  background:rgba(42,53,102,.45);
}
.scroll-progress__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--neon-cyan) 0%,var(--electric-purple) 55%,var(--warm-orange) 100%);
  box-shadow:0 0 14px rgba(47,243,200,.7);
}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;
  inset-block-start:0;
  z-index:200;
  padding-block:12px;
  background:linear-gradient(180deg, rgba(10,15,44,.97) 0%, rgba(10,15,44,.86) 58%, rgba(10,15,44,0) 100%);
}

.site-header__inner{
  width:min(calc(100% - 32px), var(--shell));
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:14px;
  padding:8px 10px 8px 16px;
  border:1px solid rgba(42,53,102,.9);
  border-radius:999px;
  background:linear-gradient(120deg, rgba(27,37,80,.88), rgba(18,26,61,.74));
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}

/* 品牌字标 */
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--neon-cyan),var(--electric-purple));
  color:var(--ink-950);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  box-shadow:0 0 0 1px rgba(47,243,200,.35), 0 12px 26px -14px rgba(47,243,200,.95);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:17px;font-weight:800;letter-spacing:.07em;white-space:nowrap}
.brand__sub{
  font-family:var(--font-mono);
  font-size:9px;
  font-weight:500;
  letter-spacing:.28em;
  color:var(--text-secondary);
}

/* 周期胶囊 */
.cycle-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 12px;
  border:1px solid rgba(47,243,200,.32);
  border-radius:999px;
  background:var(--cyan-soft);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--text-secondary);
  white-space:nowrap;
  flex:0 0 auto;
}
.cycle-pill__dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--neon-cyan);
  box-shadow:0 0 10px var(--neon-cyan);
  animation:tt-pulse 2.4s ease-in-out infinite;
}
.cycle-pill__week b{color:var(--amber);font-weight:700}
.cycle-pill__time{
  color:var(--neon-cyan);
  font-variant-numeric:tabular-nums;
}
@keyframes tt-pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.8)}
}

/* 导航开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  margin-inline-start:auto;
  padding:9px 15px;
  border:1px solid var(--hairline);
  border-radius:999px;
  background:rgba(27,37,80,.9);
  color:var(--text-primary);
  font-size:13px;
  font-weight:600;
  flex:0 0 auto;
}
.nav-toggle__bars{display:grid;gap:4px}
.nav-toggle__bars span{
  display:block;
  width:16px;
  height:1.5px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{transform:translateY(2.75px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{transform:translateY(-2.75px) rotate(-45deg)}
.nav-toggle__label{letter-spacing:.06em}

/* 主导航 */
.site-nav{
  display:flex;
  align-items:center;
  gap:10px;
  margin-inline-start:auto;
  min-width:0;
}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__link{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  white-space:nowrap;
  transition:color .18s ease, background .18s ease;
}
.site-nav__link:hover,
.site-nav__link:focus-visible{color:var(--text-primary);background:var(--purple-soft)}
.site-nav__link[aria-current="page"]{
  background:var(--neon-cyan);
  color:var(--ink-950);
  font-weight:700;
  box-shadow:0 10px 24px -12px rgba(47,243,200,1);
}
.site-nav__cta{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-block-start:clamp(64px,9vw,120px);
  border-block-start:1px solid var(--hairline);
  background:linear-gradient(180deg, rgba(18,26,61,.6) 0%, rgba(10,15,44,1) 58%);
}
.site-footer__inner{
  width:min(calc(100% - 32px), var(--shell));
  margin-inline:auto;
  padding-block:clamp(40px,6vw,76px) 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) repeat(3,minmax(0,1fr));
  gap:clamp(24px,3.4vw,52px);
}

.footer-brand__name{
  font-family:var(--font-display);
  font-size:24px;
  font-weight:800;
  letter-spacing:.1em;
  background:linear-gradient(100deg,var(--neon-cyan),var(--electric-purple));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.footer-brand__tagline{
  margin-block-start:12px;
  max-width:24em;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.9;
}
.footer-brand__badge{
  display:inline-flex;
  align-items:center;
  margin-block-start:16px;
  padding:5px 12px;
  border:1px solid rgba(138,92,255,.45);
  border-radius:999px;
  background:var(--purple-soft);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:#BCA6FF;
}
.footer-cycle{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-block-start:18px;
}
.footer-cycle__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:var(--text-secondary);
}
.footer-cycle__time{
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:500;
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
  color:var(--amber);
}

.footer-col__title{
  margin-block-end:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--neon-cyan);
}
.footer-list{display:grid;gap:9px}
.footer-list a{
  display:inline-block;
  font-size:14px;
  color:var(--text-secondary);
  transition:color .18s ease, transform .18s ease;
}
.footer-list a:hover,
.footer-list a:focus-visible{color:var(--text-primary);transform:translateX(3px)}

.footer-meta{display:grid;gap:12px}
.footer-meta__item{display:grid;gap:3px}
.footer-meta__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.18em;
  color:rgba(169,180,214,.72);
}
.footer-meta__value{
  font-size:13.5px;
  line-height:1.7;
  color:var(--text-primary);
  word-break:break-word;
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-block-start:clamp(34px,5vw,60px);
  padding-block:20px 30px;
  border-block-start:1px solid var(--hairline);
}
.footer-bottom__copy{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--text-secondary);
  max-width:none;
}
.footer-bottom__links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom__links a{
  font-size:12.5px;
  letter-spacing:.05em;
  color:var(--text-secondary);
  transition:color .18s ease;
}
.footer-bottom__links a:hover,
.footer-bottom__links a:focus-visible{color:var(--neon-cyan)}

/* ---------- 专题研究板 / 票券 ---------- */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  border:1px solid var(--hairline);
  border-radius:var(--radius-lg);
  background:linear-gradient(150deg, rgba(27,37,80,.74), rgba(18,26,61,.52));
  box-shadow:var(--shadow-soft);
}

.ticket{
  position:relative;
  padding:22px 24px;
  border:1px solid rgba(138,92,255,.42);
  border-radius:22px;
  background:linear-gradient(150deg, rgba(91,47,214,.34), rgba(27,37,80,.9));
  box-shadow:var(--shadow-soft);
  transform:rotate(var(--tilt,-2deg));
  transition:transform .3s cubic-bezier(.2,.7,.3,1), box-shadow .3s ease;
}
.ticket:hover{transform:rotate(0deg) translateY(-6px);box-shadow:var(--shadow-lift)}

/* ---------- 图片容器基类 ---------- */
.media-box{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:4/3;
  overflow:hidden;
  border:1px solid var(--hairline);
  border-radius:var(--radius-md);
  background:
    linear-gradient(135deg, rgba(47,243,200,.18), rgba(138,92,255,.24)),
    var(--ink-800);
}
.media-box > img,
.media-box > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-box--wide{aspect-ratio:16/9}
.media-box--tall{aspect-ratio:3/4}
.media-box--square{aspect-ratio:1/1}
.media-box__cap{
  position:absolute;
  inset-inline:12px;
  inset-block-end:12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--text-primary);
  text-shadow:0 2px 12px rgba(10,15,44,.9);
}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.grid--split-rev{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
@media (min-width:1024px){
  .grid--offset > *:nth-child(even){transform:translateY(clamp(18px,3vw,42px))}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin-block:26px 4px}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--text-secondary);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--hairline)}
.breadcrumb__item a{transition:color .18s ease}
.breadcrumb__item a:hover,
.breadcrumb__item a:focus-visible{color:var(--neon-cyan)}
.breadcrumb__item [aria-current="page"]{color:var(--text-primary)}

/* ---------- 滚动交互协议 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .62s ease, transform .62s cubic-bezier(.2,.7,.3,1);
}
[data-reveal].is-visible{opacity:1;transform:none}

[data-spy]{
  transition:border-color .28s ease, box-shadow .28s ease;
}
[data-spy].is-active{
  border-color:rgba(47,243,200,.75);
  box-shadow:0 0 0 1px rgba(47,243,200,.35), var(--shadow-soft);
}

/* ---------- 响应式 ---------- */
@media (max-width:1140px){
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;
    inset-inline:14px;
    inset-block-end:14px;
    z-index:210;
    max-width:460px;
    margin-inline:auto;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    padding:14px;
    border:1px solid var(--hairline);
    border-radius:26px;
    background:linear-gradient(160deg, rgba(27,37,80,.98), rgba(18,26,61,.99));
    box-shadow:0 -14px 60px -18px rgba(0,0,0,.95);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(18px) scale(.97);
    transition:opacity .24s ease, transform .24s cubic-bezier(.2,.7,.3,1), visibility .24s;
  }
  .site-nav::before{
    content:"";
    display:block;
    height:1px;
    background:linear-gradient(90deg,var(--neon-cyan),transparent);
  }
  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:none;
  }
  .site-nav__list{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    width:100%;
  }
  .site-nav__link{
    width:100%;
    justify-content:center;
    padding:12px 10px;
    border-radius:14px;
    background:rgba(42,53,102,.42);
    color:var(--text-primary);
    font-size:13.5px;
  }
  .site-nav__link[aria-current="page"]{
    background:var(--neon-cyan);
    color:var(--ink-950);
  }
  .site-nav__cta{width:100%}
}

@media (max-width:1024px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split,
  .grid--split-rev{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:900px){
  .grid--2{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:720px){
  .site-header__inner{gap:10px;padding-inline:12px}
  .brand__sub{display:none}
  .cycle-pill__time{display:none}
  .nav-toggle__label{display:none}
  .site-nav__list{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (max-width:600px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .grid--3{grid-template-columns:minmax(0,1fr)}
  body{background-attachment:scroll}
}

/* ---------- 无障碍：降低动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .ticket{transform:none}
  .grid--offset > *:nth-child(even){transform:none}
}