/* ==========================================================================
   新利平台娱乐 · Shared Site Kit
   赛事蓝图 × 数据竞技场
   ========================================================================== */

/* 01 Design Tokens */
:root {
  --space-blue: #0A1A3F;
  --deep-blue: #06132B;
  --tech-blue: #1F3B6B;
  --lime: #00FF8A;
  --lime-dim: rgba(0, 255, 138, 0.14);
  --orange: #FF6B35;
  --gold: #FFD166;
  --white: #FFFFFF;
  --light-gray: #E6E8EC;
  --mid-gray: #9AA0A6;
  --dark-gray: #4A4F58;

  --font-head: "Archivo Black", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "Consolas", "Courier New", monospace;

  --content-w: 1200px;
  --header-h: 76px;
  --transition: 200ms ease;
}

/* 02 Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

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

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

a {
  color: inherit;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--white);
  background-color: var(--deep-blue);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-head);
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 900;
}

/* 03 Layout Primitives */
.container {
  width: 100%;
  max-width: var(--content-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.page-main {
  min-height: 70vh;
}

.section-panel {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--mid-gray);
  padding: 0.875rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 1.5rem;
}

.breadcrumb a {
  color: var(--light-gray);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--lime);
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--dark-gray);
  margin-right: 0.5rem;
}

.breadcrumb span[aria-current="page"] {
  color: var(--lime);
  font-weight: 600;
}

/* 04 Header */
.site-header {
  position: relative;
  z-index: 10;
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 80px;
  height: 3px;
  background: var(--lime);
  z-index: 1;
}

.site-header::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: clamp(120px, 20vw, 260px);
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0 30%, var(--lime) 30% 100%);
  z-index: 1;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: var(--header-h);
}

/* 04a Skip Link */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 1000;
  background: var(--lime);
  color: var(--deep-blue);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  transition: top var(--transition);
}

.skip-link:focus-visible {
  top: 0;
}

/* 05 Brand */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.site-brand__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 6px 6px 6px 2px;
  background: linear-gradient(135deg, var(--lime) 0%, #00CC88 100%);
  color: var(--deep-blue);
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  transform: skewX(-4deg);
  flex-shrink: 0;
}

.site-brand__type {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-brand__name {
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--white);
  white-space: nowrap;
}

.site-brand__sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  color: var(--mid-gray);
  text-transform: uppercase;
  margin-top: 0.25rem;
  white-space: nowrap;
}

.site-brand--footer .site-brand__badge {
  width: 46px;
  height: 46px;
  font-size: 1.25rem;
}

.site-brand--footer .site-brand__name {
  font-size: 1.25rem;
}

.site-brand--footer .site-brand__sub {
  font-size: 0.6875rem;
  color: var(--light-gray);
}

/* 06 Navigation */
.nav-shell {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-shell__toggle {
  display: none;
}

.nav-shell__icon {
  display: none;
}

.nav-shell__list {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.nav-shell__link {
  position: relative;
  display: block;
  padding: 9px 16px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--transition), color var(--transition);
}

.nav-shell__link:hover {
  background: var(--lime-dim);
  color: var(--lime);
}

.nav-shell__link[aria-current="page"] {
  color: var(--lime);
  font-weight: 600;
}

.nav-shell__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--lime);
}

/* 06a Mobile Navigation */
@media (max-width: 767px) {
  .site-header__inner {
    height: 64px;
  }

  .site-brand__badge {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .site-brand__name {
    font-size: 1rem;
  }

  .site-brand__sub {
    font-size: 0.5625rem;
  }

  .nav-shell__toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--lime-dim);
    border: 1px solid rgba(0, 255, 138, 0.28);
    border-radius: 999px;
    padding: 0.5rem 0.875rem;
    color: var(--lime);
    font-size: 0.8125rem;
    line-height: 1;
    transition: background-color var(--transition), color var(--transition);
  }

  .nav-shell__toggle:hover {
    background: rgba(0, 255, 138, 0.22);
    color: var(--white);
  }

  .nav-shell__icon {
    display: block;
    position: relative;
    width: 16px;
    height: 14px;
    flex-shrink: 0;
  }

  .nav-shell__icon span {
    display: block;
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav-shell__icon span:nth-child(1) { top: 0; }
  .nav-shell__icon span:nth-child(2) { top: 6px; }
  .nav-shell__icon span:nth-child(3) { top: 12px; }

  .nav-shell[data-open] .nav-shell__toggle {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
  }

  .nav-shell[data-open] .nav-shell__icon span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-shell[data-open] .nav-shell__icon span:nth-child(2) {
    transform: scaleX(0);
    opacity: 0;
  }

  .nav-shell[data-open] .nav-shell__icon span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .nav-shell__list {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: min(300px, 86vw);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px;
    border-radius: 14px;
    background: rgba(10, 26, 63, 0.97);
    border-color: rgba(0, 255, 138, 0.28);
    box-shadow: 0 20px 60px rgba(6, 19, 43, 0.7);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    pointer-events: none;
    z-index: 20;
    transition: opacity 220ms ease, transform 220ms ease, visibility 220ms;
  }

  .nav-shell[data-open] .nav-shell__list {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }

  .nav-shell__link {
    width: 100%;
    text-align: left;
    border-radius: 8px;
    padding: 11px 14px;
  }

  .nav-shell__link[aria-current="page"]::after {
    left: 14px;
    right: auto;
    bottom: auto;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 18px;
  }
}

/* 07 Footer */
.site-footer {
  position: relative;
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  padding-top: 3.5rem;
  padding-bottom: 1.5rem;
}

.site-footer__deco {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--lime) 0 35%, var(--orange) 35% 55%, var(--tech-blue) 55% 100%);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--content-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  padding-bottom: 2.5rem;
}

.site-footer__col--brand {
  max-width: 34rem;
}

.site-footer__about {
  margin: 1.25rem 0 1rem;
  color: var(--light-gray);
  font-size: 0.875rem;
  line-height: 1.7;
}

.site-footer__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white);
  padding-left: 0.875rem;
  border-left: 3px solid var(--lime);
}

.site-footer__links {
  display: grid;
  gap: 0.625rem;
}

.site-footer__link {
  color: rgba(255, 255, 255, 0.68);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.4;
  transition: color var(--transition);
}

.site-footer__link:hover {
  color: var(--lime);
}

.site-footer__contact {
  display: grid;
  gap: 1rem;
}

.site-footer__contact-item {
  display: grid;
  gap: 0.25rem;
}

.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

.site-footer__contact-value {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--mid-gray);
}

.site-footer__copyright {
  margin: 0;
}

.site-footer__icp {
  margin: 0;
}

.site-footer__legal {
  display: inline-flex;
  gap: 1.25rem;
  margin-left: auto;
}

.site-footer__legal-link {
  color: var(--mid-gray);
  text-decoration: none;
  font-size: 0.8125rem;
  transition: color var(--transition);
}

.site-footer__legal-link:hover {
  color: var(--lime);
}

/* 08 Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn--lime {
  background: var(--lime);
  color: var(--deep-blue);
}

.btn--lime:hover {
  background: var(--white);
  color: var(--deep-blue);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  border-color: var(--dark-gray);
  color: var(--white);
}

.btn--outline:hover {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-2px);
}

/* 09 Data Tags */
.data-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--mid-gray);
  border-left: 2px solid transparent;
}

.data-tag--lime {
  border-left-color: var(--lime);
  color: var(--lime);
  background: rgba(0, 255, 138, 0.08);
}

.data-tag--orange {
  border-left-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 107, 53, 0.08);
}

.data-tag--gold {
  border-left-color: var(--gold);
  color: var(--gold);
  background: rgba(255, 209, 102, 0.08);
}

/* 10 Chapter Headings */
.chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 3rem;
  border-left: 4px solid var(--lime);
  padding-left: 1.5rem;
}

.chapter-id {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: 0.05em;
  color: var(--lime);
}

.chapter-title {
  margin: 0.25rem 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.01;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--white);
}

.chapter-sub {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
  color: var(--mid-gray);
}

/* 11 Cards & Grids */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.75rem);
}

.card {
  position: relative;
  overflow: hidden;
  background: var(--space-blue);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  transition: border-color var(--transition), transform var(--transition);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--lime);
  transition: width 250ms ease;
}

.card:hover {
  border-color: rgba(0, 255, 138, 0.4);
  transform: translateY(-2px);
}

.card:hover::before {
  width: 100%;
}

.card__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--white);
}

.card__desc {
  margin: 0;
  color: var(--light-gray);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* 12 Image Frame */
.img-frame {
  position: relative;
  overflow: hidden;
  background-color: var(--tech-blue);
  background-image:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255, 255, 255, 0.08) 25%, transparent 25%),
    linear-gradient(135deg, transparent 75%, rgba(255, 255, 255, 0.08) 75%),
    linear-gradient(225deg, transparent 75%, rgba(255, 255, 255, 0.08) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 8px 0, 8px -8px, 0 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  aspect-ratio: 16 / 9;
}

.img-frame__fill {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

/* 13 Scroll Progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--lime), var(--orange));
  z-index: 1002;
  pointer-events: none;
}

/* 14 Reveal Motion */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

/* 15 Focus */
:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 2px;
  border-radius: 2px;
}

/* 16 Responsive Adjustments */
@media (max-width: 1023px) {
  .grid-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__col--brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .grid-cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__col--brand {
    grid-column: auto;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .site-footer__legal {
    margin-left: 0;
    flex-wrap: wrap;
    gap: 1rem 1.25rem;
  }
}

/* 17 Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

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