/* =========================================================
   赌钱娱乐网 · 共享 Site Kit
   夜书桌规则手册 / 深墨蓝 + 铜金 + 米白
   ========================================================= */

:root {
  --ink: #0B1B2B;
  --ink-deep: #07131F;
  --panel: #12283D;
  --panel-soft: #16324B;
  --copper: #C9944A;
  --copper-soft: #E6C58A;
  --cinnabar: #B6473A;
  --paper: #F2EBDD;
  --rock: #6E7B87;
  --moss: #4F6B5A;
  --data: #3F6F8F;
  --shadow-black: #050C14;

  --paper-dim: rgba(242, 235, 221, .74);
  --line: rgba(201, 148, 74, .24);
  --line-soft: rgba(110, 123, 135, .28);

  --header-h: 78px;
  --shell: min(1240px, 100% - 48px);

  --r-lg: 30px;
  --r-md: 18px;
  --r-pill: 999px;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: clamp(15px, .2vw + 14.4px, 16.5px);
  line-height: 1.78;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl, dd { margin: 0; }
ul, ol { padding-left: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
a { color: var(--copper-soft); text-decoration: none; transition: color .28s var(--ease); }
a:hover { color: var(--copper); }

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

::selection { background: rgba(201, 148, 74, .38); color: var(--paper); }

#main-content { scroll-margin-top: calc(var(--header-h) + 14px); }

/* ---------- 基础排版 ---------- */
h1, h2, h3, h4, .display {
  font-family: var(--font-sans);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--paper);
}

h1, .display { font-size: clamp(2.1rem, 4.6vw, 3.6rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.15rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); }
h4 { font-size: 1.02rem; letter-spacing: .01em; }

p { color: var(--paper-dim); }

/* ---------- 布局工具 ---------- */
.shell {
  width: var(--shell);
  margin-inline: auto;
}

.section { padding-block: clamp(56px, 7vw, 110px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: clamp(24px, 3vw, 40px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--copper);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}

.index-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--copper);
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line), rgba(201, 148, 74, 0));
}

.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)); }

@media (max-width: 960px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid-2,
  .grid-3 { grid-template-columns: 1fr; }
}

/* ---------- 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color .3s var(--ease), border-color .3s var(--ease),
              color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}

.btn-primary {
  background-image: linear-gradient(180deg, #D9A65C 0%, #C9944A 100%);
  background-color: var(--copper);
  color: var(--shadow-black);
  box-shadow: 0 10px 26px -18px rgba(201, 148, 74, .9);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  color: var(--shadow-black);
  box-shadow: 0 14px 30px -16px rgba(201, 148, 74, .95);
  transform: translateY(-1px);
}

.btn-ghost {
  background-color: transparent;
  border-color: rgba(201, 148, 74, .5);
  color: var(--copper-soft);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--copper);
  background-color: rgba(201, 148, 74, .12);
  color: var(--copper-soft);
}

.capsule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background-color: rgba(18, 40, 61, .62);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--paper-dim);
}

.capsule--copper { border-color: rgba(201, 148, 74, .66); color: var(--copper-soft); }
.capsule--moss { border-color: rgba(79, 107, 90, .78); color: #9DBFAA; }
.capsule--cinnabar { border-color: rgba(182, 71, 58, .74); color: #E09A8F; }

.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-pill);
  background-color: transparent;
  color: var(--paper-dim);
  font-size: .85rem;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color .28s var(--ease), color .28s var(--ease), background-color .28s var(--ease);
}
.chip:hover { border-color: var(--copper); color: var(--paper); }
.chip[aria-pressed="true"],
.chip[data-active="true"] {
  background-color: rgba(201, 148, 74, .16);
  border-color: var(--copper);
  color: var(--copper-soft);
}

/* ---------- 面板与卡片 ---------- */
.panel {
  background-image: linear-gradient(160deg, rgba(22, 50, 75, .92) 0%, rgba(11, 27, 43, .94) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(20px, 3vw, 34px);
}

.card {
  background-image: linear-gradient(160deg, rgba(18, 40, 61, .9) 0%, rgba(9, 22, 36, .92) 100%);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: clamp(18px, 2.4vw, 28px);
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.card:hover { border-color: rgba(201, 148, 74, .5); }

/* ---------- 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background-image: linear-gradient(155deg, var(--panel-soft) 0%, var(--ink-deep) 100%);
  background-color: var(--panel);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(120% 90% at 72% 0%, rgba(201, 148, 74, .18), rgba(5, 12, 20, 0) 62%);
}

.ratio-3-2 { aspect-ratio: 3 / 2; }
.ratio-4-3 { aspect-ratio: 4 / 3; }
.ratio-16-9 { aspect-ratio: 16 / 9; }
.ratio-1-1 { aspect-ratio: 1 / 1; }
.ratio-3-4 { aspect-ratio: 3 / 4; }

@media (max-width: 640px) {
  .ratio-3-4 { aspect-ratio: 4 / 5; }
}

/* ---------- 面包屑与长文 ---------- */
.breadcrumb {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--rock);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(110, 123, 135, .62);
}
.breadcrumb a { color: var(--paper-dim); }
.breadcrumb a:hover { color: var(--copper-soft); }

.prose { max-width: 68ch; }
.prose h2 { margin-top: 2.2em; margin-bottom: .7em; }
.prose h3 { margin-top: 1.8em; margin-bottom: .6em; }
.prose p + p { margin-top: 1em; }
.prose ul,
.prose ol { margin-top: 1em; }
.prose ul li,
.prose ol li {
  position: relative;
  padding-left: 1.4em;
  margin-top: .5em;
  color: var(--paper-dim);
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 8px;
  height: 1px;
  background-color: var(--copper);
}
.prose ol { counter-reset: prose; }
.prose ol li::before {
  counter-increment: prose;
  content: counter(prose, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: .78em;
  color: var(--copper);
}

/* =========================================================
   头部
   ========================================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background-color: rgba(11, 27, 43, 0);
  background-image: linear-gradient(180deg, rgba(5, 12, 20, .58) 0%, rgba(5, 12, 20, 0) 100%);
  border-bottom: 1px solid transparent;
  transition: background-color .4s var(--ease), border-color .4s var(--ease),
              box-shadow .4s var(--ease), backdrop-filter .4s var(--ease);
}

.site-header[data-scrolled="true"],
.site-header[data-nav-open="true"] {
  background-color: rgba(9, 22, 36, .96);
  background-image: none;
  border-bottom-color: var(--line);
  box-shadow: 0 18px 44px -34px #000;
  backdrop-filter: blur(10px) saturate(1.15);
}

.header-shell {
  width: var(--shell);
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 40px);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--paper);
  flex: 0 0 auto;
}
.brand:hover { color: var(--paper); }

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(201, 148, 74, .68);
  border-radius: 12px;
  background-image: linear-gradient(150deg, rgba(201, 148, 74, .2), rgba(201, 148, 74, 0));
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--copper-soft);
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.brand:hover .brand-mark { border-color: var(--copper-soft); }

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.1;
}
.brand-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
}
.brand-tag {
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--copper);
}

/* 主导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 38px);
  flex: 1 1 auto;
  justify-content: flex-end;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 30px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 0;
  font-size: .93rem;
  letter-spacing: .04em;
  color: var(--paper-dim);
  transition: color .3s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .34s var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible { color: var(--paper); }
.nav-link:hover::after,
.nav-link:focus-visible::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--copper-soft); }
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background-color: var(--copper);
}

.nav-side { display: flex; align-items: center; flex: 0 0 auto; }
.nav-cta { padding: 10px 20px; font-size: .82rem; white-space: nowrap; }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background-color: transparent;
  color: var(--paper);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .18em;
  cursor: pointer;
  transition: border-color .3s var(--ease), color .3s var(--ease), background-color .3s var(--ease);
}
.nav-toggle:hover { border-color: var(--copper); color: var(--copper-soft); }
.nav-toggle[aria-expanded="true"] {
  border-color: var(--copper);
  background-color: rgba(201, 148, 74, .14);
  color: var(--copper-soft);
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background-color: currentColor;
  transition: transform .3s var(--ease), top .3s var(--ease);
}
.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { top: 8px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 4px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { top: 4px; transform: rotate(-45deg); }

.nav-toggle-label { line-height: 1; }

/* 阅读进度 */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.scroll-meter-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-image: linear-gradient(90deg, rgba(201, 148, 74, .85), var(--copper-soft));
}

/* 跳转链接 */
.skip-link {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translate(-50%, -160%);
  z-index: 200;
  padding: 12px 24px;
  border-radius: 0 0 14px 14px;
  background-color: var(--copper);
  color: var(--shadow-black);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .06em;
  transition: transform .26s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translate(-50%, 0);
  color: var(--shadow-black);
  outline-offset: -5px;
}

/* ---------- 头部响应式 ---------- */
@media (max-width: 1080px) {
  .nav-list { gap: 14px; }
  .nav-link { font-size: .88rem; }
}

@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 14px clamp(20px, 5vw, 34px) 28px;
    background-color: rgba(8, 20, 33, .985);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 30px 60px -34px #000;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s var(--ease);
  }

  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-list li + li { border-top: 1px solid rgba(110, 123, 135, .2); }

  .nav-link {
    display: block;
    padding: 15px 2px;
    font-size: 1.02rem;
  }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] {
    box-shadow: inset 2px 0 0 var(--copper);
    padding-left: 12px;
  }

  .nav-side { margin-top: 20px; }
  .nav-cta { width: 100%; padding: 14px 20px; font-size: .9rem; }
}

@media (max-width: 640px) {
  :root { --header-h: 68px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 10px; font-size: 1rem; }
  .brand-name { font-size: .94rem; }
  .brand-tag { font-size: .56rem; letter-spacing: .22em; }
  .nav-toggle { padding: 8px 14px 8px 12px; letter-spacing: .12em; }
}

/* =========================================================
   页脚
   ========================================================= */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 110px);
  padding-top: clamp(48px, 6vw, 84px);
  background-image:
    radial-gradient(110% 80% at 88% -10%, rgba(63, 111, 143, .22), rgba(5, 12, 20, 0) 62%),
    linear-gradient(180deg, #07131F 0%, var(--shadow-black) 100%);
  background-color: var(--shadow-black);
  border-top: 1px solid var(--line);
  color: var(--paper-dim);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(240px, 32%);
  height: 1px;
  background-image: linear-gradient(90deg, var(--copper), rgba(201, 148, 74, 0));
}

.footer-shell {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.25fr .9fr 1.1fr;
  gap: clamp(28px, 4vw, 64px);
}

.footer-brand { display: flex; flex-direction: column; gap: 8px; }

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--paper);
}

.footer-domain {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--copper);
}

.footer-motto {
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--rock);
}

.footer-label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 14px;
}

.footer-nav-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 20px;
}

.footer-nav-list a {
  position: relative;
  display: inline-block;
  font-size: .92rem;
  letter-spacing: .04em;
  color: var(--paper-dim);
}
.footer-nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background-color: var(--copper);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .3s var(--ease);
}
.footer-nav-list a:hover { color: var(--copper-soft); }
.footer-nav-list a:hover::after { transform: scaleX(1); }

.footer-contact { display: flex; flex-direction: column; gap: 6px; }

.footer-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: .86rem;
  letter-spacing: .04em;
  color: var(--paper);
}

.footer-address {
  font-size: .88rem;
  color: var(--paper-dim);
}

.footer-remark {
  margin-top: 4px;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--rock);
}

.copy-btn {
  padding: 3px 11px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-pill);
  background-color: transparent;
  color: var(--rock);
  font-family: var(--font-sans);
  font-size: .72rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .28s var(--ease), color .28s var(--ease), background-color .28s var(--ease);
}
.copy-btn:hover { border-color: var(--copper); color: var(--copper-soft); }
.copy-btn[data-copied="true"] {
  border-color: rgba(79, 107, 90, .9);
  background-color: rgba(79, 107, 90, .22);
  color: #A8C6B3;
}

.footer-legal {
  width: var(--shell);
  margin: clamp(36px, 5vw, 64px) auto 0;
  padding-block: 20px 26px;
  border-top: 1px solid rgba(110, 123, 135, .24);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--rock);
}
.footer-copy,
.footer-icp { color: var(--rock); font-size: inherit; }

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.footer-legal-links a { color: var(--rock); }
.footer-legal-links a:hover { color: var(--copper-soft); }

@media (max-width: 960px) {
  .footer-shell { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .footer-shell { grid-template-columns: 1fr; gap: 34px; }
  .footer-brand { grid-column: auto; }
  .footer-nav-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-legal { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ---------- 无障碍：减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}