/* ============================================================
   天天娱乐主站 · 共享样式表 /assets/site.css
   夜间行情面板：深墨蓝底 + 霓虹青强调 + 琥珀金数据
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:100px;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
a{color:inherit}

/* ---------- 2. Tokens ---------- */
:root{
  color-scheme:dark;

  --c-bg:#060B1A;
  --c-surface:#0E1730;
  --c-line:#1E2B4D;
  --c-accent:#22E0D6;
  --c-accent-soft:#7FF3EC;
  --c-data:#FFB93C;
  --c-alert:#FF4D9D;
  --c-text:#E8EEF9;
  --c-muted:#8A9BB8;
  --c-ok:#4ADE80;

  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:var(--font-display);
  --font-mono:"SFMono-Regular","JetBrains Mono","Cascadia Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;

  --r-card:24px;
  --r-soft:18px;
  --r-pill:999px;

  --w-page:1240px;
  --w-narrow:780px;
  --gutter:clamp(18px,4vw,40px);
  --bar-h:68px;

  --t-fast:.16s ease;
  --t-base:.22s ease;
}

/* ---------- 3. Base ---------- */
body{
  min-height:100vh;
  background-color:var(--c-bg);
  background-image:
    radial-gradient(760px 420px at 8% -8%, rgba(34,224,214,.13), transparent 68%),
    radial-gradient(680px 400px at 98% 2%, rgba(255,77,157,.09), transparent 70%),
    repeating-linear-gradient(90deg, rgba(30,43,77,.28) 0 1px, transparent 1px 112px);
  background-repeat:no-repeat,no-repeat,repeat;
  color:var(--c-text);
  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-accent);
  outline-offset:3px;
  border-radius:6px;
}

::selection{background:rgba(34,224,214,.28);color:#fff}

/* 滚动条：钢蓝轨道 + 霓虹青滑块 */
*{scrollbar-color:var(--c-line) transparent;scrollbar-width:thin}
*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-track{background:var(--c-bg)}
*::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:99px;border:3px solid var(--c-bg)}
*::-webkit-scrollbar-thumb:hover{background:var(--c-accent)}

/* ---------- 4. Layout ---------- */
.shell{
  width:min(var(--w-page),100% - var(--gutter) * 2);
  margin-inline:auto;
}
.shell--narrow{width:min(var(--w-narrow),100% - var(--gutter) * 2)}

#main-content{display:block}

.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid--split{grid-template-columns:5fr 7fr}
.grid--wide{grid-template-columns:7fr 5fr}
.grid--halves{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--thirds{grid-template-columns:repeat(3,minmax(0,1fr))}

@media (max-width:900px){
  .grid--split,.grid--wide,.grid--halves,.grid--thirds{grid-template-columns:1fr}
}

/* ---------- 5. Typography utilities ---------- */
.vnote{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.3em;
  color:var(--c-muted);
  line-height:1;
  user-select:none;
}

.data-num{
  font-family:var(--font-mono);
  font-weight:600;
  color:var(--c-data);
  letter-spacing:0;
  font-variant-numeric:tabular-nums;
  font-size:1.02em;
}

.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 6. Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-accent);
  background:var(--c-accent);
  color:#04121A;
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color var(--t-fast),color var(--t-fast),border-color var(--t-fast),transform var(--t-fast);
}
.btn:hover{background:var(--c-accent-soft);border-color:var(--c-accent-soft);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--c-accent);border-color:var(--c-line)}
.btn--ghost:hover{background:rgba(34,224,214,.10);border-color:var(--c-accent);color:var(--c-accent)}
.btn--data{background:transparent;color:var(--c-data);border-color:rgba(255,185,60,.55)}
.btn--data:hover{background:rgba(255,185,60,.12);border-color:var(--c-data);color:var(--c-data)}

/* ---------- 7. Chips ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:rgba(14,23,48,.72);
  color:var(--c-muted);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  line-height:1.5;
  white-space:nowrap;
}
.chip--accent{color:var(--c-accent);border-color:rgba(34,224,214,.42)}
.chip--data{color:var(--c-data);border-color:rgba(255,185,60,.42)}
.chip--alert{color:var(--c-alert);border-color:rgba(255,77,157,.42)}
.chip--ok{color:var(--c-ok);border-color:rgba(74,222,128,.42)}

/* ---------- 8. Cards ---------- */
.card{
  position:relative;
  padding:clamp(20px,2.6vw,32px);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
  transition:border-color var(--t-base),transform var(--t-base);
}
.card:hover{border-color:rgba(34,224,214,.5);transform:translateY(-2px)}
.card--flat:hover{transform:none;border-color:var(--c-line)}

/* ---------- 9. Section head ---------- */
.section-head{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:clamp(14px,2vw,28px);
  align-items:start;
  margin-bottom:clamp(24px,3.4vw,44px);
}
.section-head__idx{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--c-accent);
  padding-top:.75em;
  white-space:nowrap;
}
.section-head__title{
  font-size:clamp(26px,3.6vw,44px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.12;
}
.section-head__desc{
  margin-top:12px;
  max-width:44ch;
  font-size:15px;
  line-height:1.75;
  color:var(--c-muted);
}

/* ---------- 10. Breadcrumb ---------- */
.breadcrumb{margin-bottom:clamp(18px,2.4vw,28px)}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--c-muted);
}
.breadcrumb__list li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__list li + li::before{content:"/";color:var(--c-line)}
.breadcrumb__list a{color:var(--c-muted);text-decoration:none;transition:color var(--t-fast)}
.breadcrumb__list a:hover{color:var(--c-accent)}
.breadcrumb__list [aria-current="page"]{color:var(--c-accent)}

/* ---------- 11. Prose ---------- */
.prose{
  max-width:38em;
  font-size:17px;
  line-height:1.8;
  color:var(--c-text);
}
.prose > * + *{margin-top:1.15em}
.prose h2{
  margin-top:2.2em;
  font-size:clamp(20px,2.2vw,26px);
  font-weight:900;
  letter-spacing:-.01em;
  line-height:1.3;
}
.prose h3{margin-top:1.8em;font-size:18px;font-weight:800;color:var(--c-accent-soft)}
.prose a{color:var(--c-accent);text-decoration:none;border-bottom:1px solid rgba(34,224,214,.4)}
.prose a:hover{color:var(--c-accent-soft);border-bottom-color:var(--c-accent-soft)}
.prose strong{color:var(--c-accent-soft);font-weight:700}
.prose ul{list-style:disc;padding-left:1.4em}
.prose ol{list-style:decimal;padding-left:1.5em}
.prose li{margin-bottom:.5em}
.prose li::marker{color:var(--c-accent)}
.prose code{
  font-family:var(--font-mono);
  font-size:.9em;
  padding:.15em .5em;
  border-radius:8px;
  border:1px solid var(--c-line);
  background:rgba(14,23,48,.9);
  color:var(--c-data);
}
.prose blockquote{
  padding-left:18px;
  border-left:2px solid var(--c-accent);
  color:var(--c-muted);
}
.prose hr{border:0;border-top:1px solid var(--c-line);margin-block:2.4em}

/* ---------- 12. Ledger（规则档位表） ---------- */
.ledger{border-top:1px solid var(--c-line)}
.ledger__row{
  display:grid;
  grid-template-columns:minmax(0,9fr) minmax(0,3fr);
  gap:16px;
  align-items:baseline;
  padding:15px 0;
  border-bottom:1px solid var(--c-line);
}
.ledger__key{font-size:15px;color:var(--c-text)}
.ledger__val{
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--c-data);
  text-align:right;
  font-variant-numeric:tabular-nums;
}
@media (max-width:560px){
  .ledger__row{grid-template-columns:1fr;gap:4px}
  .ledger__val{text-align:left}
}

/* ---------- 13. Media frame（图片容器基础规则） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 10;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:var(--c-surface);
}
.media-frame img,
.media-frame video{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  display:block;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:4 / 5}
.media-frame--placeholder{
  background-image:
    linear-gradient(140deg, rgba(34,224,214,.16), transparent 52%),
    linear-gradient(320deg, rgba(255,185,60,.12), transparent 46%),
    repeating-linear-gradient(0deg, rgba(138,155,184,.14) 0 1px, transparent 1px 7px),
    linear-gradient(180deg,#0E1730,#060B1A);
}
.media-frame__caption{
  position:absolute;
  left:16px;
  right:16px;
  bottom:14px;
  z-index:2;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--c-muted);
  text-shadow:0 1px 12px rgba(6,11,26,.9);
}

/* ---------- 14. Skip link ---------- */
.skip-link{
  position:absolute;
  top:-72px;
  left:16px;
  z-index:200;
  padding:12px 20px;
  border-radius:0 0 16px 16px;
  background:var(--c-accent);
  color:#04121A;
  font-size:14px;
  font-weight:800;
  text-decoration:none;
  transition:top var(--t-fast);
}
.skip-link:focus{top:0}

/* ---------- 15. Header · 命令栏 ---------- */
.cmd-bar{
  position:sticky;
  top:0;
  z-index:100;
  border-bottom:1px solid var(--c-line);
  background:rgba(6,11,26,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.cmd-bar__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(12px,1.8vw,26px);
  width:min(1360px,100% - var(--gutter) * 2);
  margin-inline:auto;
  min-height:var(--bar-h);
  padding-block:10px;
  transition:min-height var(--t-base),padding var(--t-base);
}

/* 品牌 */
.cmd-brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--c-text);
}
.cmd-brand__mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border-radius:12px;
  background:linear-gradient(140deg,#22E0D6,#0E8E96);
  color:#04121A;
  font-size:18px;
  font-weight:900;
  line-height:1;
  flex:0 0 auto;
}
.cmd-brand__text{display:flex;flex-direction:column;line-height:1.15}
.cmd-brand__name{font-size:17px;font-weight:900;letter-spacing:-.01em}
.cmd-brand__claim{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--c-muted);
}

/* 移动开关 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 15px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  background:var(--c-surface);
  color:var(--c-text);
  font-size:13px;
  font-weight:700;
  cursor:pointer;
  transition:border-color var(--t-fast),background-color var(--t-fast);
}
.nav-toggle:hover{border-color:var(--c-accent)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bars i{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--c-accent);
  transition:transform var(--t-fast),opacity var(--t-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}

/* 导航 */
.cmd-nav{flex:1 1 auto;display:flex;justify-content:center}
.cmd-nav__list{display:flex;align-items:center;gap:2px}
.cmd-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:8px 13px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  color:var(--c-muted);
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--t-fast),border-color var(--t-fast),background-color var(--t-fast);
}
.cmd-nav__link:hover{
  color:var(--c-text);
  border-color:var(--c-line);
  background:var(--c-surface);
}
.cmd-nav__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:rgba(138,155,184,.75);
  transition:color var(--t-fast);
}
.cmd-nav__link:hover .cmd-nav__idx{color:var(--c-accent)}
.cmd-nav__link[aria-current="page"]{
  color:var(--c-accent);
  border-color:rgba(34,224,214,.45);
  background:rgba(34,224,214,.08);
}
.cmd-nav__link[aria-current="page"] .cmd-nav__idx{color:var(--c-accent)}

/* 右侧工具区 */
.cmd-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.cmd-status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--c-muted);
}
.cmd-status__dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--c-ok);
  box-shadow:0 0 0 3px rgba(74,222,128,.16);
  flex:0 0 auto;
}
.cmd-cta{
  display:inline-flex;
  align-items:center;
  padding:9px 19px;
  border:1px solid var(--c-accent);
  border-radius:var(--r-pill);
  background:var(--c-accent);
  color:#04121A;
  font-size:13px;
  font-weight:800;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color var(--t-fast),border-color var(--t-fast),color var(--t-fast);
}
.cmd-cta:hover{background:var(--c-accent-soft);border-color:var(--c-accent-soft)}

/* 滚动进度 */
.cmd-progress{height:2px;background:transparent;overflow:hidden}
.cmd-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--c-accent),var(--c-data));
  transition:width .1s linear;
}

/* 收缩态 */
.cmd-bar[data-condensed="true"] .cmd-bar__inner{min-height:52px;padding-block:6px}
.cmd-bar[data-condensed="true"] .cmd-brand__claim{display:none}

/* ---------- 16. Header 响应式 ---------- */
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .cmd-tools{margin-left:auto}
  .cmd-status{display:none}

  .cmd-nav{
    position:absolute;
    top:calc(100% + 1px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    justify-content:flex-start;
    padding:14px var(--gutter) 22px;
    border-bottom:1px solid var(--c-line);
    background:rgba(9,15,32,.98);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    max-height:calc(100vh - var(--bar-h));
    overflow-y:auto;
  }
  .cmd-nav[data-open="true"]{display:flex}
  .cmd-nav__list{flex-direction:column;align-items:stretch;gap:6px;width:100%}
  .cmd-nav__link{
    justify-content:flex-start;
    padding:14px 16px;
    border-color:var(--c-line);
    border-radius:var(--r-soft);
    background:var(--c-surface);
    color:var(--c-text);
    font-size:16px;
  }
  .cmd-nav__link[aria-current="page"]{
    color:var(--c-accent);
    border-color:rgba(34,224,214,.5);
    background:rgba(34,224,214,.1);
  }
  .cmd-nav__idx{font-size:11px}
  .cmd-bar{position:sticky}
}

@media (max-width:640px){
  :root{--bar-h:60px}
  .cmd-brand__claim{display:none}
  .cmd-brand__name{font-size:15px}
  .cmd-brand__mark{width:30px;height:30px;border-radius:11px;font-size:16px}
  .nav-toggle__text{display:none}
  .nav-toggle{padding:10px 12px}
  .cmd-cta{padding:8px 15px;font-size:12px}
}

/* ---------- 17. Footer ---------- */
.site-foot{
  margin-top:clamp(64px,9vw,120px);
  border-top:1px solid var(--c-line);
  background:linear-gradient(180deg, rgba(14,23,48,.78), rgba(6,11,26,1) 62%);
}
.site-foot__inner{
  width:min(var(--w-page),100% - var(--gutter) * 2);
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) 0 30px;
}
.foot-intro{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 22px;
  padding-bottom:26px;
  border-bottom:1px solid var(--c-line);
}
.foot-brand{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:900;
  letter-spacing:-.02em;
  text-decoration:none;
  color:var(--c-text);
  transition:color var(--t-fast);
}
.foot-brand:hover{color:var(--c-accent)}
.foot-intro__line{font-size:14px;color:var(--c-muted)}
.foot-intro__meta{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--c-muted);
  text-transform:uppercase;
}

.foot-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(24px,3vw,48px);
  padding-top:34px;
}
@media (max-width:980px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.foot-grid{grid-template-columns:1fr}}
@media (max-width:640px){.foot-intro__meta{margin-left:0}}

.foot-col__title{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--c-muted);
  text-transform:uppercase;
}
.foot-col__title::after{
  content:"";
  flex:1 1 auto;
  height:1px;
  background:var(--c-line);
}

.foot-list{display:grid;gap:10px}
.foot-list a{
  position:relative;
  display:inline-block;
  font-size:14px;
  color:var(--c-text);
  text-decoration:none;
  transition:color var(--t-fast);
}
.foot-list a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-2px;
  width:100%;
  height:1px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t-base);
}
.foot-list a:hover{color:var(--c-accent)}
.foot-list a:hover::after{transform:scaleX(1)}

.foot-list--data{gap:14px}
.foot-list--data li{display:flex;flex-direction:column;gap:3px}
.foot-key{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--c-muted);
}
.foot-val{font-size:14px;color:var(--c-text);word-break:break-word}
.foot-val--mono{font-family:var(--font-mono);color:var(--c-data);font-variant-numeric:tabular-nums}
.foot-note{
  margin-top:16px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--c-muted);
}

.foot-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  width:min(var(--w-page),100% - var(--gutter) * 2);
  margin-inline:auto;
  padding:20px 0 34px;
  border-top:1px solid var(--c-line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--c-muted);
}

/* ---------- 18. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .card:hover,
  .btn:hover{transform:none}
  .cmd-progress__bar{transition:none}
}