/* ============================================
   微乐游戏 · 全站共享样式
   视觉系统：数据叙事 / 控制台 / 梯田几何
   ============================================ */

/* ---------- 自定义属性 ---------- */
:root {
  --c-terracotta: #D96C4F;
  --c-stone: #4A5568;
  --c-moss: #6B8E4E;
  --c-cream: #F9F6F0;
  --c-ink: #1A202C;
  --c-navy: #1D3557;
  --c-gold: #F2C14E;
  --c-mist: #E2E8F0;

  --bg-body: var(--c-cream);
  --bg-card: #FFFFFF;
  --text-primary: var(--c-ink);
  --text-secondary: var(--c-stone);
  --text-invert: var(--c-cream);
  --accent: var(--c-terracotta);
  --accent-alt: var(--c-gold);
  --success: var(--c-moss);
  --line: 1px solid var(--c-mist);

  --font-display: 'Oswald', 'Impact', 'Arial Black', 'PingFang SC', 'Heiti SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Nunito', 'Verdana', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Source Code Pro', 'Courier New', Consolas, 'Roboto Mono', monospace;

  --container-max: 1240px;
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --z-header: 1000;
  --z-nav: 900;
  --z-skip: 9999;

  --dur-fast: 0.18s;
  --dur-base: 0.3s;
  --dur-slow: 0.6s;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset 与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background: var(--bg-body);
}

main {
  flex: 1 0 auto;
}

#main-content {
  outline: none;
  scroll-margin-top: 80px;
}

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

a {
  color: var(--c-terracotta);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--c-navy);
}

::selection {
  background: var(--c-terracotta);
  color: var(--c-cream);
}

/* ---------- 布局与正文工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-content {
  color: var(--text-primary);
}

.site-content h1,
.site-content h2,
.site-content h3,
.site-content h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0 0 0.5em;
}

.site-content p {
  margin: 0 0 1em;
  max-width: 65ch;
}

.site-content a {
  color: var(--c-terracotta);
  text-decoration: underline;
}

.site-content a:hover {
  color: var(--c-navy);
}

.site-content ul,
.site-content ol {
  margin: 0 0 1em 1.5em;
}

.site-content blockquote {
  margin: 1em 0;
  padding: 8px 16px;
  border-left: 3px solid var(--c-terracotta);
  background: rgba(217, 108, 79, 0.06);
}

.page-section {
  padding: 56px 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
  white-space: nowrap;
}

/* ---------- 可访问性 ---------- */
:focus-visible {
  outline: 3px solid var(--c-gold);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  transform: translateY(-300%);
  z-index: var(--z-skip);
  background: var(--c-terracotta);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(217, 108, 79, 0.4);
  transition: transform var(--dur-fast) ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 头部：悬浮胶囊导航 ---------- */
.site-header {
  position: sticky;
  top: 12px;
  z-index: var(--z-header);
  padding: 0 16px;
  pointer-events: none;
}

.header-inner {
  position: relative;
  pointer-events: auto;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 10px 10px 20px;
  background: var(--c-navy);
  border: 1px solid rgba(242, 193, 78, 0.35);
  border-radius: 32px;
  box-shadow: 0 12px 32px rgba(29, 53, 87, 0.22);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--c-cream);
  flex-shrink: 0;
}

.brand:hover {
  color: var(--c-cream);
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 30px;
  height: 30px;
}

.brand-mark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-terracotta) 0%, var(--c-gold) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26% 100%, 26% 66%, 0 66%);
}

.brand-mark::after {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26% 100%, 26% 66%, 0 66%);
}

.brand-text {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1;
}

.brand-status {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-moss);
  animation: brand-pulse 2.4s ease-in-out infinite;
}

@keyframes brand-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(107, 142, 78, 0.5); }
  60% { box-shadow: 0 0 0 5px rgba(107, 142, 78, 0); }
}

.main-nav {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 100%;
  z-index: var(--z-nav);
  background: var(--c-navy);
  border: 1px solid rgba(242, 193, 78, 0.35);
  border-radius: 18px;
  padding: 8px;
  box-shadow: 0 20px 40px rgba(29, 53, 87, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--dur-base) ease,
              transform var(--dur-base) ease,
              visibility var(--dur-base) ease;
}

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

.nav-list {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: var(--c-cream);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  transition: background var(--dur-fast) ease, color var(--dur-fast) ease;
}

.nav-link:hover {
  background: rgba(249, 246, 240, 0.1);
  color: var(--c-gold);
}

.nav-link[aria-current="page"] {
  background: var(--c-terracotta);
  color: #fff;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(249, 246, 240, 0.25);
  border-radius: 14px;
  background: rgba(249, 246, 240, 0.08);
  cursor: pointer;
  transition: background var(--dur-fast) ease;
}

.nav-toggle:hover {
  background: rgba(249, 246, 240, 0.16);
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-cream);
  transition: transform var(--dur-fast) ease, opacity var(--dur-fast) ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 861px) {
  .header-inner {
    padding: 6px 6px 6px 20px;
    border-radius: var(--radius-pill);
  }

  .main-nav {
    position: static;
    min-width: 0;
    background: transparent;
    border: 0;
    padding: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 2px;
  }

  .nav-link {
    padding: 10px 16px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    white-space: nowrap;
  }

  .nav-toggle {
    display: none;
  }
}

/* ---------- 页脚 ---------- */
.site-footer {
  flex-shrink: 0;
  margin-top: 96px;
  background: var(--c-navy);
  color: var(--text-invert);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  z-index: 1;
  background: linear-gradient(90deg, transparent 0%, var(--c-terracotta) 25%, var(--c-gold) 50%, var(--c-terracotta) 75%, transparent 100%);
}

.site-footer::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 34%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(249, 246, 240, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(249, 246, 240, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
}

.footer-top {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 48px 24px 36px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px;
}

.footer-brand {
  min-width: 0;
}

.footer-brand-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.footer-tagline {
  margin-top: 8px;
  color: var(--c-gold);
  font-size: 15px;
  font-weight: 600;
}

.footer-trust {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--c-moss);
  color: rgba(249, 246, 240, 0.68);
  font-size: 13px;
  line-height: 1.7;
  max-width: 32em;
}

.footer-nav {
  min-width: 0;
}

.footer-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  color: rgba(249, 246, 240, 0.78);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color var(--dur-fast) ease, padding-left var(--dur-fast) ease;
}

.footer-list a:hover {
  color: var(--c-gold);
  padding-left: 4px;
}

.footer-list li {
  color: rgba(249, 246, 240, 0.78);
  font-size: 14px;
  line-height: 1.6;
  max-width: 30em;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.footer-badge {
  display: inline-block;
  margin-top: 16px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-gold);
  background: rgba(107, 142, 78, 0.16);
  border: 1px solid rgba(107, 142, 78, 0.55);
}

.footer-bottom {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 24px;
  border-top: 1px solid rgba(249, 246, 240, 0.12);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 24px;
}

.footer-bottom p {
  margin: 0;
  color: rgba(249, 246, 240, 0.55);
  font-size: 13px;
}

@media (min-width: 861px) and (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 860px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 20px 28px;
  }

  .footer-bottom {
    padding: 14px 20px 20px;
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ---------- 章节标题 ---------- */
.section-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-terracotta);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0 0 24px;
  max-width: 56ch;
  line-height: 1.7;
}

/* ---------- 按钮 ---------- */
.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur-fast) ease,
              background var(--dur-fast) ease,
              color var(--dur-fast) ease,
              border-color var(--dur-fast) ease,
              box-shadow var(--dur-fast) ease;
}

.site-btn:hover {
  transform: translateY(-2px);
}

.site-btn-primary {
  background: var(--c-terracotta);
  color: #fff;
  box-shadow: 0 6px 16px rgba(217, 108, 79, 0.35);
}

.site-btn-primary:hover {
  background: var(--c-navy);
  color: var(--c-cream);
  border-color: var(--c-terracotta);
  box-shadow: 0 8px 24px rgba(29, 53, 87, 0.3);
}

.site-btn-secondary {
  background: transparent;
  color: var(--c-navy);
  border-color: var(--c-navy);
}

.site-btn-secondary:hover {
  background: var(--c-navy);
  color: var(--c-cream);
}

.site-btn-ghost {
  background: rgba(249, 246, 240, 0.1);
  color: var(--c-cream);
  border-color: rgba(249, 246, 240, 0.45);
}

.site-btn-ghost:hover {
  background: rgba(249, 246, 240, 0.2);
  color: var(--c-gold);
  border-color: var(--c-gold);
}

/* ---------- 卡片 ---------- */
.site-card {
  position: relative;
  background: var(--bg-card);
  border: var(--line);
  border-radius: 6px;
  padding: 24px;
  overflow: hidden;
  transition: box-shadow var(--dur-base) ease, transform var(--dur-base) ease;
}

.site-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-terracotta), var(--c-gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) ease;
}

.site-card:hover::before {
  transform: scaleX(1);
}

.site-card:hover {
  box-shadow: 0 12px 28px rgba(29, 53, 87, 0.1);
  transform: translateY(-3px);
}

/* ---------- 状态面板 ---------- */
.stat-panel {
  position: relative;
  background: var(--c-navy);
  color: var(--c-cream);
  border-radius: 6px;
  padding: 24px;
  border-left: 3px solid var(--c-gold);
  overflow: hidden;
}

.stat-panel::after {
  content: '';
  position: absolute;
  right: -20px;
  top: -20px;
  width: 90px;
  height: 90px;
  border: 1px solid rgba(249, 246, 240, 0.08);
  border-radius: 50%;
}

.stat-panel-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 8px;
}

.stat-panel-value {
  font-family: var(--font-display);
  font-size: 36px;
  line-height: 1.1;
  font-weight: 700;
  margin: 0 0 4px;
}

.stat-panel-desc {
  font-size: 14px;
  color: rgba(249, 246, 240, 0.7);
  margin: 0;
}

/* ---------- 状态标签 ---------- */
.site-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(217, 108, 79, 0.12);
  border: 1px solid rgba(217, 108, 79, 0.35);
  color: var(--c-terracotta);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
}

.site-tag-moss {
  background: rgba(107, 142, 78, 0.12);
  border-color: rgba(107, 142, 78, 0.35);
  color: var(--c-moss);
}

.site-tag-gold {
  background: rgba(242, 193, 78, 0.15);
  border-color: rgba(242, 193, 78, 0.45);
  color: #9a6e08;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb li + li::before {
  content: '/';
  font-family: var(--font-mono);
  color: var(--c-stone);
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--c-terracotta);
  font-weight: 700;
}

/* ---------- 分割线 ---------- */
.site-divider {
  height: 1px;
  border: 0;
  background: var(--c-mist);
  margin: 32px 0;
}

/* ---------- 图像框架 ---------- */
.img-frame {
  position: relative;
  overflow: hidden;
  background: var(--c-mist);
  border-radius: 8px;
  aspect-ratio: 16 / 9;
}

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

.img-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(29, 53, 87, 0.1);
  border-radius: 8px;
  pointer-events: none;
}

.img-frame-square {
  aspect-ratio: 1 / 1;
}

.img-frame-wide {
  aspect-ratio: 21 / 9;
}

.img-frame-phone {
  aspect-ratio: 3 / 4;
}

/* ---------- 地形与数据装饰 ---------- */
.contour-pattern {
  background-image:
    repeating-radial-gradient(circle at 25% 75%, transparent 0, transparent 22px, rgba(107, 142, 78, 0.07) 23px, rgba(107, 142, 78, 0.07) 25px),
    repeating-radial-gradient(circle at 75% 25%, transparent 0, transparent 30px, rgba(217, 108, 79, 0.06) 31px, rgba(217, 108, 79, 0.06) 33px);
}

.terrain-line {
  display: block;
  height: 8px;
  border-radius: 4px;
  background: repeating-linear-gradient(90deg,
    transparent 0, transparent 10px,
    rgba(217, 108, 79, 0.5) 10px, rgba(217, 108, 79, 0.5) 12px,
    transparent 12px, transparent 22px,
    rgba(242, 193, 78, 0.4) 22px, rgba(242, 193, 78, 0.4) 23px,
    transparent 23px, transparent 32px);
}

.data-line {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold) 0 6px, transparent 6px 10px, var(--c-terracotta) 10px 16px, transparent 16px 20px);
}

/* ---------- 基础网格 ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 1024px) {
  .grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

/* ---------- 滚动显现 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-slow) ease,
              transform var(--dur-slow) ease;
  transition-delay: var(--reveal-delay, 0s);
}

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

/* ---------- 低动态偏好 ---------- */
@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;
  }

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