/* =========================================================
   冠军娱乐官网 · 共享样式表  /assets/site.css
   设计语言：极简文字建筑 / 框架式导航 / 冠军金 + 深空黑
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--cg-topbar) + 16px);
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, figcaption,
blockquote, dl, dt, dd, fieldset, legend {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

img, svg, video { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

table { border-collapse: collapse; width: 100%; }

hr { border: 0; border-top: 1px solid var(--cg-steel); }

/* ---------- 2. Tokens ---------- */
:root {
  --cg-ink: #0B0E14;
  --cg-graphite: #141922;
  --cg-steel: #2A3240;
  --cg-gold: #D4AF37;
  --cg-gold-deep: #8A6B1F;
  --cg-cyan: #00E5FF;
  --cg-cyan-dark: #0F3038;
  --cg-magenta: #FF006E;
  --cg-silver: #C9CED6;
  --cg-paper: #F5F6F8;

  --cg-text: #C9CED6;
  --cg-text-strong: #F5F6F8;
  --cg-text-dim: #7C8794;

  --cg-serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC",
               "Source Han Serif CN", Georgia, "Times New Roman", serif;
  --cg-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
             "Microsoft YaHei", "Noto Sans CJK SC", Inter, system-ui, sans-serif;
  --cg-mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas,
             "Liberation Mono", monospace;

  --cg-topbar: 56px;
  --cg-rail: 72px;
  --cg-gutter: 18px;
  --cg-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (min-width: 768px) {
  :root { --cg-topbar: 64px; --cg-gutter: 28px; }
}

@media (min-width: 1200px) {
  :root { --cg-gutter: 40px; }
}

/* ---------- 3. Base / 中文排版 ---------- */
body {
  padding-top: var(--cg-topbar);
  background-color: var(--cg-ink);
  background-image:
    radial-gradient(1100px 620px at 78% -10%, rgba(0, 229, 255, 0.055), transparent 62%),
    radial-gradient(940px 560px at 4% 10%, rgba(212, 175, 55, 0.06), transparent 60%);
  background-repeat: no-repeat;
  color: var(--cg-text);
  font-family: var(--cg-sans);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
  overflow-wrap: break-word;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (min-width: 1024px) {
  body { padding-left: var(--cg-rail); }
}

h1, h2, h3, h4 {
  font-family: var(--cg-serif);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--cg-text-strong);
}

p { max-width: 72ch; }

strong { color: var(--cg-text-strong); font-weight: 600; }

::selection { background: rgba(212, 175, 55, 0.28); color: var(--cg-paper); }

:focus-visible {
  outline: 2px solid var(--cg-cyan);
  outline-offset: 3px;
}

/* ---------- 4. 金属文字 ---------- */
.cg-metal { color: var(--cg-gold); }

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .cg-metal {
    background-image: linear-gradient(118deg,
      #F7EBC0 0%, #D4AF37 34%, #8A6B1F 58%, #EEDC9C 82%, #D4AF37 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
  }
}

/* ---------- 5. Skip link ---------- */
.cg-skip {
  position: fixed;
  top: 8px;
  left: 50%;
  z-index: 140;
  padding: 10px 20px;
  transform: translate(-50%, -180%);
  background: var(--cg-gold);
  color: var(--cg-ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 2px;
  transition: transform 0.18s var(--cg-ease);
}

.cg-skip:focus { transform: translate(-50%, 0); }

/* ---------- 6. Header ---------- */
.cg-header {
  position: relative;
  z-index: 100;
}

.cg-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  z-index: 135;
  background: linear-gradient(90deg, var(--cg-gold), var(--cg-cyan));
  pointer-events: none;
}

.cg-topbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 120;
  height: var(--cg-topbar);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 var(--cg-gutter);
  background: rgba(11, 14, 20, 0.94);
  border-bottom: 1px solid var(--cg-steel);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.cg-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.cg-brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 26px;
  background: linear-gradient(150deg, #F4E3A4, var(--cg-gold) 44%, var(--cg-gold-deep));
  clip-path: polygon(50% 0%, 100% 22%, 100% 74%, 50% 100%, 0% 74%, 0% 22%);
  transition: transform 0.22s var(--cg-ease);
}

.cg-brand__mark::after {
  content: "";
  position: absolute;
  inset: 5px 4px;
  background: var(--cg-ink);
  clip-path: polygon(50% 0%, 100% 22%, 100% 74%, 50% 100%, 0% 74%, 0% 22%);
}

.cg-brand:hover .cg-brand__mark { transform: translateY(-1px) scale(1.04); }

.cg-brand__text { min-width: 0; }

.cg-brand__name {
  display: block;
  font-family: var(--cg-serif);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--cg-text-strong);
}

.cg-brand__tag {
  display: none;
  margin-top: 2px;
  font-family: var(--cg-mono);
  font-size: 10px;
  line-height: 1.4;
  letter-spacing: 0.16em;
  color: var(--cg-text-dim);
}

@media (min-width: 900px) {
  .cg-brand__tag { display: block; }
  .cg-brand__name { font-size: 17px; }
}

.cg-topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.cg-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--cg-gold);
  border: 1px solid rgba(212, 175, 55, 0.48);
  border-radius: 2px;
  transition: background 0.18s var(--cg-ease), color 0.18s var(--cg-ease),
              border-color 0.18s var(--cg-ease);
}

.cg-cta::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.cg-cta:hover {
  background: var(--cg-gold);
  border-color: var(--cg-gold);
  color: var(--cg-ink);
}

@media (max-width: 519px) {
  .cg-cta { display: none; }
}

.cg-nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--cg-silver);
  border: 1px solid var(--cg-steel);
  border-radius: 2px;
  transition: border-color 0.18s var(--cg-ease), color 0.18s var(--cg-ease);
}

.cg-nav-toggle:hover { border-color: var(--cg-cyan); color: var(--cg-cyan); }

.cg-nav-toggle__bars {
  position: relative;
  display: block;
  width: 15px;
  height: 10px;
}

.cg-nav-toggle__bars::before,
.cg-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.22s var(--cg-ease);
}

.cg-nav-toggle__bars::before { top: 0; }
.cg-nav-toggle__bars::after { bottom: 0; }

.cg-header[data-open] .cg-nav-toggle__bars::before {
  transform: translateY(4.25px) rotate(45deg);
}

.cg-header[data-open] .cg-nav-toggle__bars::after {
  transform: translateY(-4.25px) rotate(-45deg);
}

.cg-header[data-open] .cg-nav-toggle {
  color: var(--cg-gold);
  border-color: rgba(212, 175, 55, 0.55);
}

@media (min-width: 1024px) {
  .cg-nav-toggle { display: none; }
}

/* 移动端 / 平板：顶部下拉抽屉 */
.cg-nav {
  position: fixed;
  top: var(--cg-topbar);
  right: 0;
  left: 0;
  z-index: 110;
  max-height: calc(100vh - var(--cg-topbar));
  overflow-y: auto;
  padding: 0 var(--cg-gutter) 12px;
  background: rgba(20, 25, 34, 0.98);
  border-bottom: 1px solid var(--cg-steel);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.2s var(--cg-ease), transform 0.22s var(--cg-ease),
              visibility 0.2s linear;
}

.cg-header[data-open] .cg-nav {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cg-nav__list { display: flex; flex-direction: column; }

.cg-nav__list li { border-bottom: 1px solid rgba(42, 50, 64, 0.7); }
.cg-nav__list li:last-child { border-bottom: 0; }

.cg-nav__list a {
  position: relative;
  display: block;
  padding: 14px 2px;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cg-text);
  transition: color 0.16s var(--cg-ease), padding-left 0.16s var(--cg-ease);
}

.cg-nav__list a:hover { color: var(--cg-gold); }

.cg-nav__list a[aria-current="page"] {
  padding-left: 14px;
  color: var(--cg-gold);
}

.cg-nav__list a[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 14px;
  left: 0;
  width: 2px;
  background: var(--cg-gold);
}

/* 桌面端：左侧竖排索引条 */
@media (min-width: 1024px) {
  .cg-nav {
    top: var(--cg-topbar);
    right: auto;
    bottom: 0;
    left: 0;
    width: var(--cg-rail);
    max-height: none;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 34px 0;
    background: linear-gradient(180deg, #141922 0%, #0B0E14 100%);
    border-right: 1px solid var(--cg-steel);
    border-bottom: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .cg-nav__list {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .cg-nav__list li { border-bottom: 0; }

  .cg-nav__list a {
    writing-mode: vertical-rl;
    padding: 12px 5px;
    font-size: 13px;
    line-height: 1;
    letter-spacing: 0.06em;
    color: var(--cg-text-dim);
    transition: color 0.18s var(--cg-ease);
  }

  .cg-nav__list a:hover { color: var(--cg-silver); padding-left: 5px; }

  .cg-nav__list a[aria-current="page"] {
    padding-left: 5px;
    color: var(--cg-gold);
  }

  .cg-nav__list a[aria-current="page"]::before {
    top: 0;
    bottom: 0;
    left: -9px;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--cg-gold), transparent);
  }
}

/* ---------- 7. Main / 容器 ---------- */
.cg-main,
#main-content {
  display: block;
  scroll-margin-top: calc(var(--cg-topbar) + 12px);
}

.cg-wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding-right: var(--cg-gutter);
  padding-left: var(--cg-gutter);
}

.cg-wrap--narrow { max-width: 840px; }
.cg-wrap--wide { max-width: 1440px; }

/* ---------- 8. Section 节奏 ---------- */
.cg-section { padding: 60px 0; }

.cg-section + .cg-section { border-top: 1px solid rgba(42, 50, 64, 0.55); }

@media (min-width: 768px) {
  .cg-section { padding: 82px 0; }
}

.cg-section__head {
  max-width: 760px;
  margin-bottom: 38px;
}

.cg-section__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--cg-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cg-cyan);
}

.cg-section__kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cg-cyan);
  opacity: 0.75;
}

.cg-section__title {
  margin-top: 14px;
  font-size: clamp(26px, 3.4vw, 40px);
}

.cg-section__lead {
  margin-top: 16px;
  max-width: 66ch;
  font-size: 17px;
  color: var(--cg-text-dim);
}

/* ---------- 9. 栅格 ---------- */
.cg-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

@media (min-width: 760px) {
  .cg-grid { gap: 32px; }
  .cg-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .cg-grid--aside {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
  }
}

/* ---------- 10. 按钮 ---------- */
.cg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background 0.18s var(--cg-ease), color 0.18s var(--cg-ease),
              border-color 0.18s var(--cg-ease), transform 0.18s var(--cg-ease);
}

.cg-btn--gold {
  background: var(--cg-gold);
  color: var(--cg-ink);
  box-shadow: 0 1px 0 var(--cg-gold-deep);
}

.cg-btn--gold:hover {
  background: #E5C95F;
  transform: translateY(-1px);
}

.cg-btn--ghost {
  border-color: var(--cg-steel);
  color: var(--cg-silver);
}

.cg-btn--ghost:hover {
  border-color: var(--cg-cyan);
  color: var(--cg-cyan);
}

/* ---------- 11. 面包屑 ---------- */
.cg-breadcrumb {
  padding-top: 22px;
  font-family: var(--cg-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--cg-text-dim);
}

.cg-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.cg-breadcrumb__list li:not(:first-child)::before {
  content: "/";
  margin-right: 8px;
  color: var(--cg-steel);
}

.cg-breadcrumb a { transition: color 0.16s var(--cg-ease); }
.cg-breadcrumb a:hover { color: var(--cg-gold); }

/* ---------- 12. 数据与刻度 ---------- */
.cg-data {
  font-family: var(--cg-mono);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--cg-cyan);
}

.cg-data--gold { color: var(--cg-gold); }

.cg-label {
  display: block;
  font-family: var(--cg-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cg-text-dim);
}

.cg-scale {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 60px;
  padding-top: 12px;
  border-bottom: 1px solid var(--cg-steel);
}

.cg-scale__tick {
  flex: 1 1 0;
  min-width: 2px;
  height: var(--h, 40%);
  background: linear-gradient(180deg, var(--cg-gold), rgba(212, 175, 55, 0.1));
  border-radius: 1px 1px 0 0;
}

.cg-scale__tick--cyan {
  background: linear-gradient(180deg, var(--cg-cyan), rgba(0, 229, 255, 0.1));
}

/* ---------- 13. 可展开内容组 ---------- */
.cg-disclosure {
  border-top: 1px solid var(--cg-steel);
  transition: background 0.2s var(--cg-ease);
}

.cg-disclosure[open] {
  background: linear-gradient(90deg, rgba(212, 175, 55, 0.06), transparent 62%);
}

.cg-disclosure__summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 14px 17px 16px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--cg-text-strong);
  cursor: pointer;
  list-style: none;
  transition: color 0.16s var(--cg-ease);
}

.cg-disclosure__summary::-webkit-details-marker { display: none; }

.cg-disclosure__summary::before {
  content: "";
  position: absolute;
  top: 13px;
  bottom: 13px;
  left: 0;
  width: 2px;
  background: var(--cg-steel);
  transition: background 0.18s var(--cg-ease);
}

.cg-disclosure__summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--cg-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cg-text-dim);
  transition: color 0.18s var(--cg-ease);
}

.cg-disclosure__summary:hover { color: var(--cg-gold); }

.cg-disclosure[open] > .cg-disclosure__summary::before { background: var(--cg-gold); }
.cg-disclosure[open] > .cg-disclosure__summary::after {
  content: "−";
  color: var(--cg-cyan);
}

.cg-disclosure__body {
  padding: 0 14px 22px 16px;
  max-width: 72ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--cg-text-dim);
}

/* ---------- 14. 图片容器 ---------- */
.cg-figure {
  position: relative;
  margin: 0;
  background: var(--cg-graphite);
  border: 1px solid var(--cg-steel);
  overflow: hidden;
}

.cg-figure__media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--cg-graphite);
  background-image:
    radial-gradient(120% 90% at 14% 8%, rgba(0, 229, 255, 0.14), transparent 60%),
    radial-gradient(96% 84% at 86% 92%, rgba(212, 175, 55, 0.16), transparent 62%),
    linear-gradient(140deg, #141922 0%, #0B0E14 100%);
  overflow: hidden;
}

.cg-figure__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cg-figure__media--4x3 { aspect-ratio: 4 / 3; }
.cg-figure__media--1x1 { aspect-ratio: 1 / 1; }

.cg-figure__caption {
  margin-top: 10px;
  font-family: var(--cg-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--cg-text-dim);
}

/* ---------- 15. 入场显影 ---------- */
html.cg-js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
}

html.cg-js [data-reveal].is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: opacity 0.55s var(--cg-ease), transform 0.55s var(--cg-ease);
}

/* ---------- 16. Footer ---------- */
.cg-footer {
  position: relative;
  z-index: 1;
  margin-top: 40px;
  padding: 56px var(--cg-gutter) 26px;
  background: linear-gradient(180deg, #0B0E14 0%, #141922 100%);
  border-top: 1px solid var(--cg-steel);
}

.cg-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(220px, 42%);
  height: 1px;
  background: linear-gradient(90deg, var(--cg-gold), transparent);
}

.cg-footer__inner {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

@media (min-width: 720px) {
  .cg-footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1080px) {
  .cg-footer__inner {
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 44px;
  }
}

.cg-footer__brand {
  font-family: var(--cg-serif);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

.cg-footer__line {
  margin-top: 14px;
  max-width: 40ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--cg-text-dim);
}

.cg-footer__title {
  margin-bottom: 14px;
  font-family: var(--cg-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cg-text-dim);
}

.cg-footer__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 14px;
  line-height: 1.66;
}

.cg-footer__list a {
  color: var(--cg-text);
  transition: color 0.16s var(--cg-ease);
}

.cg-footer__list a:hover { color: var(--cg-gold); }

.cg-footer__list--data {
  font-family: var(--cg-mono);
  font-size: 12.5px;
  letter-spacing: 0.01em;
  color: var(--cg-text-dim);
}

.cg-footer__icp {
  margin-top: 16px;
  font-family: var(--cg-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cg-text-dim);
}

.cg-footer__base {
  max-width: 1240px;
  margin: 44px auto 0;
  padding-top: 18px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  border-top: 1px solid var(--cg-steel);
  font-family: var(--cg-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cg-text-dim);
}

/* ---------- 17. 无障碍偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
  }

  html.cg-js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .cg-progress { display: none; }

  .cg-skip { transition: none; }
}