/* ==========================================================================
   九游娱乐主站 · 共享样式表 /assets/site.css
   夜场灯光下的数据看台 —— 深墨绿近单色 + 荧光青数据层
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ink-900: #04120F;
  --ink-800: #0A241D;
  --ink-700: #173F33;
  --line: #2B5A4B;
  --line-soft: rgba(43, 90, 75, 0.5);
  --neon: #63F5D9;
  --neon-soft: rgba(99, 245, 217, 0.12);
  --mist: #A9C8BE;
  --paper: #EAF7F1;
  --red: #FF4F5F;
  --orange: #FFA24B;

  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --gutter: clamp(20px, 4vw, 72px);
  --shell: 1320px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  font-size: clamp(16px, 0.35vw + 15px, 17.5px);
  line-height: 1.75;
  color: var(--mist);
  background-color: var(--ink-900);
  background-image:
    repeating-linear-gradient(to right, rgba(43, 90, 75, 0.16) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(to bottom, rgba(43, 90, 75, 0.10) 0 1px, transparent 1px 120px);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--paper);
  text-wrap: balance;
}

p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; 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; padding: 0; cursor: pointer; }

::selection { background: var(--neon); color: var(--ink-900); }

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

/* ---------- 3. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  left: 16px;
  top: -90px;
  z-index: 120;
  padding: 11px 20px;
  background: var(--neon);
  color: var(--ink-900);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  transition: top 0.18s var(--ease);
}
.skip-link:focus { top: 16px; }

/* ---------- 4. 站点头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(4, 18, 15, 0.97), rgba(10, 36, 29, 0.95));
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
  z-index: 3;
}
.scroll-progress-fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--neon), #2EE6C0);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

.header-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 70px;
  padding: 0 var(--gutter);
  max-width: var(--shell);
  margin-inline: auto;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 6px 0;
  flex: 0 0 auto;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--neon);
  color: var(--ink-900);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  transition: background-color 0.2s var(--ease);
}
.brand:hover .brand-mark { background: var(--paper); }
.brand-text { display: flex; flex-direction: column; gap: 3px; }
.brand-name {
  font-size: 18px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--paper);
}
.brand-sub {
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1;
  letter-spacing: 0.3em;
  color: rgba(169, 200, 190, 0.72);
}

.round-status {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: rgba(23, 63, 51, 0.5);
}
.round-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--neon);
  box-shadow: 0 0 10px rgba(99, 245, 217, 0.85);
  animation: lampPulse 2.6s ease-in-out infinite;
}
@keyframes lampPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.round-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: rgba(169, 200, 190, 0.8);
}
.round-value {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--neon);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  color: var(--paper);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.nav-toggle:hover { color: var(--neon); border-color: var(--neon); }
.nav-toggle-bars { display: block; width: 16px; flex: 0 0 auto; }
.nav-toggle-bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s var(--ease);
}
.nav-toggle-bars i + i { margin-top: 5px; width: 11px; margin-left: auto; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:first-child {
  transform: translateY(3.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:last-child {
  width: 16px;
  transform: translateY(-3.5px) rotate(-45deg);
}
.nav-toggle-text { line-height: 1; }

.site-nav {
  display: none;
  flex: 0 0 100%;
  margin: 10px calc(var(--gutter) * -1) 0;
  padding: 4px var(--gutter) 16px;
  border-top: 1px solid var(--line-soft);
  background: rgba(10, 36, 29, 0.98);
}
.site-nav[data-open] { display: block; }

.nav-list { display: flex; flex-direction: column; }
.nav-list a {
  display: block;
  padding: 13px 2px;
  font-size: 15px;
  font-weight: 600;
  color: var(--mist);
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.nav-list a:hover { color: var(--paper); }
.nav-list a[aria-current="page"] { color: var(--neon); }

.header-rail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px var(--gutter);
  max-width: var(--shell);
  margin-inline: auto;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(90deg, rgba(23, 63, 51, 0.55), rgba(10, 36, 29, 0.18));
}

.rail-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
  transition: color 0.18s var(--ease);
}
.rail-link:hover { color: var(--neon); }
.rail-kicker {
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.5;
  letter-spacing: 0.28em;
  color: var(--neon);
  border: 1px solid rgba(99, 245, 217, 0.4);
  padding: 1px 6px;
}
.rail-title { line-height: 1; }
.rail-arrow { font-size: 12px; color: var(--neon); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  text-align: center;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.btn:hover { border-color: var(--neon); color: var(--neon); }
.btn--primary {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink-900);
}
.btn--primary:hover {
  background: #A7FFEF;
  border-color: #A7FFEF;
  color: var(--ink-900);
}
.btn--ghost { background: transparent; border-color: var(--line); }
.btn--sm { padding: 8px 14px; font-size: 12px; letter-spacing: 0.08em; }
.btn--block { display: flex; width: 100%; }

/* ---------- 6. 容器与章节 ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 920px; }

.section { padding-block: clamp(48px, 7vw, 96px); }
.section + .section { border-top: 1px solid var(--line-soft); }

.section-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(24px, 4vw, 40px);
}
.section-index {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--neon);
}
.section-title {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 900;
  line-height: 1.08;
  color: var(--paper);
}
.section-lede {
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--neon);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--neon);
}
.num-big {
  display: block;
  font-family: var(--mono);
  font-size: clamp(38px, 6.5vw, 80px);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.03em;
  color: rgba(99, 245, 217, 0.3);
}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb {
  padding-block: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(169, 200, 190, 0.72);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item:not(:last-child)::after {
  content: "/";
  color: rgba(43, 90, 75, 0.95);
}
.breadcrumb__link { color: var(--mist); transition: color 0.18s var(--ease); }
.breadcrumb__link:hover { color: var(--neon); }
.breadcrumb__current { color: var(--paper); font-weight: 600; }

/* ---------- 8. 网格与卡片 ---------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }

.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.card:hover {
  border-color: rgba(99, 245, 217, 0.6);
  background: var(--ink-700);
}
.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.card__title {
  font-size: 19px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--paper);
}
.card__body { font-size: 14.5px; line-height: 1.8; color: var(--mist); }
.card__meta {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(169, 200, 190, 0.72);
}

/* ---------- 9. 标签与状态条 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.1em;
  white-space: nowrap;
  border: 1px solid var(--line);
  color: var(--mist);
}
.tag--neon {
  color: var(--neon);
  border-color: rgba(99, 245, 217, 0.55);
  background: rgba(99, 245, 217, 0.08);
}
.tag--red {
  color: var(--red);
  border-color: rgba(255, 79, 95, 0.55);
  background: rgba(255, 79, 95, 0.1);
}
.tag--orange {
  color: var(--orange);
  border-color: rgba(255, 162, 75, 0.55);
  background: rgba(255, 162, 75, 0.1);
}
.tag--dot::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--mist);
}
.status-strip--alert { border-left-color: var(--red); }

/* ---------- 10. 图片容器 ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--ink-700);
  border: 1px solid var(--line);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(to bottom, rgba(4, 18, 15, 0.2) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, rgba(4, 18, 15, 0) 42%, rgba(4, 18, 15, 0.58) 100%);
}
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media__caption {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 10px;
  z-index: 2;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: rgba(234, 247, 241, 0.85);
}

/* ---------- 11. 元信息与细线 ---------- */
.meta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(169, 200, 190, 0.72);
}
.meta-line__item { display: inline-flex; align-items: center; gap: 6px; }

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--line);
}
.rule--soft { background: var(--line-soft); }

/* ---------- 12. 长文排版 ---------- */
.prose {
  max-width: 72ch;
  font-size: 17px;
  line-height: 1.9;
  color: var(--paper);
}
.prose p + p { margin-top: 24px; }
.prose h2 {
  margin-top: 48px;
  margin-bottom: 16px;
  font-size: clamp(22px, 2.6vw, 28px);
  color: var(--paper);
}
.prose h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  font-size: 20px;
  color: var(--paper);
}
.prose ul, .prose ol { margin-top: 16px; }
.prose li { position: relative; padding-left: 22px; margin-top: 10px; }
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 9px;
  height: 1px;
  background: var(--neon);
}
.prose a {
  color: var(--neon);
  border-bottom: 1px solid rgba(99, 245, 217, 0.45);
}
.prose strong { color: var(--paper); font-weight: 800; }

/* ---------- 13. 滚动显现 ---------- */
.will-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.will-reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 14. 站点页脚 ---------- */
.site-footer {
  margin-top: clamp(56px, 9vw, 120px);
  background-color: var(--ink-900);
  background-image:
    repeating-linear-gradient(to right, rgba(43, 90, 75, 0.14) 0 1px, transparent 1px 96px);
  border-top: 1px solid var(--line);
  color: var(--mist);
}
.footer-shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 72px) var(--gutter) 28px;
}

.footer-top {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  grid-template-columns: 1fr;
}

.footer-brand { min-width: 0; }
.footer-wordmark {
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.footer-statement {
  margin-top: 14px;
  max-width: 32ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}
.footer-col { min-width: 0; }
.footer-col__title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--paper);
}
.footer-col__index {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--neon);
}
.footer-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}
.footer-list a {
  font-size: 14px;
  color: var(--mist);
  transition: color 0.18s var(--ease);
}
.footer-list a:hover { color: var(--neon); }

.footer-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(32px, 5vw, 52px);
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
}
.contact-block { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.contact-block__label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: rgba(169, 200, 190, 0.7);
}
.contact-block__value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.footer-note {
  margin-top: 18px;
  max-width: 78ch;
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(169, 200, 190, 0.72);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  color: rgba(169, 200, 190, 0.7);
}
.footer-copy { letter-spacing: 0.02em; }
.footer-icp {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(169, 200, 190, 0.82);
}
.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-left: auto;
}
.footer-legal__links a { transition: color 0.18s var(--ease); }
.footer-legal__links a:hover { color: var(--neon); }

/* ---------- 15. 断点 ---------- */
@media (min-width: 720px) {
  .round-status { display: inline-flex; }
  .footer-contact { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: block;
    flex: 0 1 auto;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
  }
  .nav-list { flex-direction: row; align-items: center; gap: 0; }
  .nav-list a {
    padding: 8px 14px;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    border-top: 2px solid transparent;
  }
  .nav-list a:hover { color: var(--paper); border-bottom-color: var(--line); }
  .nav-list a[aria-current="page"] { border-bottom-color: var(--neon); color: var(--neon); }

  .footer-top {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 899px) {
  .header-bar {
    flex-wrap: wrap;
    align-items: center;
    min-height: 0;
    padding-top: 10px;
  }
  .header-rail { padding-inline: var(--gutter); }
}

@media (max-width: 640px) {
  .header-rail { gap: 10px; }
  .rail-kicker { display: none; }
  .rail-title { font-size: 12.5px; }
  .btn--sm { padding: 8px 12px; font-size: 11.5px; }
  .footer-columns { gap: 20px; }
  .footer-legal__links { margin-left: 0; }
}

@media (max-width: 768px) {
  body { background-attachment: scroll; }
}

/* ---------- 16. 减少动态效果 ---------- */
@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;
  }
  .round-dot { animation: none; }
  .will-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}