/* ==========================================================================
   电玩棋牌汇 / site.css — 共享外壳与基础组件
   ========================================================================== */

/* 1. 变量
   ========================================================================== */
:root {
  --c-bg: #0E0A1F;
  --c-panel: #1A1330;
  --c-panel-2: #150F2A;
  --c-violet: #6C3BFF;
  --c-cyan: #23E0D0;
  --c-orange: #FF8A3D;
  --c-ochre: #B4763C;
  --c-ok: #35D08A;
  --c-warn: #FFB020;
  --c-scale: #8A8FA8;
  --c-body: #D9D6EC;
  --c-head: #F2EFFC;
  --c-dim: #9E9BBE;

  --line: rgba(108, 59, 255, 0.28);
  --line-soft: rgba(138, 143, 168, 0.18);

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

  --wrap: 1440px;
  --bar-h: 68px;
  --notch: 14px;
  --cut: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, var(--notch) 100%, 0 calc(100% - var(--notch)));
}

html[data-scrolled="true"] {
  --bar-h: 56px;
}

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

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

body {
  margin: 0;
  background-color: var(--c-bg);
  color: var(--c-body);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(108, 59, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 59, 255, 0.055) 1px, transparent 1px);
  background-size: 48px 48px;
}

body.nav-open { overflow: hidden; }

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

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

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

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

dl, dd, dt { margin: 0; }

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--c-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

hr { border: 0; }

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

::selection {
  background: rgba(108, 59, 255, 0.5);
  color: #fff;
}

/* 3. 排版工具
   ========================================================================== */
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 1px;
  background: currentColor;
  opacity: 0.75;
}

.lead {
  font-size: clamp(16px, 1.25vw, 18px);
  line-height: 1.8;
  color: #BCB8D8;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--c-cyan);
  background: rgba(35, 224, 208, 0.1);
  border: 1px solid rgba(35, 224, 208, 0.3);
}

.rule {
  height: 1px;
  margin: clamp(28px, 4vw, 56px) 0;
  background: linear-gradient(90deg, var(--c-violet), rgba(108, 59, 255, 0));
}

/* 4. 布局
   ========================================================================== */
.wrap {
  width: min(var(--wrap), 100% - 48px);
  margin-inline: auto;
}

#main-content { display: block; }

.grid { display: grid; gap: clamp(16px, 2vw, 26px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.sheet {
  max-width: 40em;
  font-size: 16.5px;
  line-height: 1.75;
}

.sheet h2 {
  margin: 1.9em 0 0.55em;
  font-size: clamp(24px, 2.4vw, 32px);
}

.sheet h3 {
  margin: 1.5em 0 0.45em;
  font-size: clamp(18px, 1.6vw, 22px);
}

.sheet ul,
.sheet ol {
  margin: 0 0 1.15em;
  padding-left: 1.15em;
  list-style: disc;
}

.sheet ol { list-style: decimal; }
.sheet li { margin-bottom: 0.45em; }

/* 5. 按钮
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: transform 0.16s ease, background 0.2s ease, border-color 0.2s ease,
              color 0.2s ease, box-shadow 0.22s ease;
}

.btn--primary {
  color: #210E01;
  background: linear-gradient(135deg, #FF8A3D, #FF6A1A);
  box-shadow: 0 4px 18px rgba(255, 138, 61, 0.28);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 138, 61, 0.44);
}

.btn--violet {
  color: #fff;
  background: linear-gradient(135deg, #6C3BFF, #4B1FD1);
  box-shadow: 0 4px 18px rgba(108, 59, 255, 0.32);
}

.btn--violet:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(108, 59, 255, 0.46);
}

.btn--ghost {
  color: var(--c-body);
  background: rgba(26, 19, 48, 0.7);
  border-color: var(--line);
}

.btn--ghost:hover {
  color: var(--c-cyan);
  border-color: rgba(35, 224, 208, 0.55);
}

.btn--sm { padding: 7px 13px; font-size: 13px; }
.btn--block { display: flex; width: 100%; }

/* 6. 页头命令栏
   ========================================================================== */
.skip-link {
  position: absolute;
  left: 12px;
  top: -64px;
  z-index: 200;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 800;
  color: #04120F;
  background: var(--c-cyan);
  transition: top 0.18s ease;
}

.skip-link:focus { top: 12px; }

.cmdbar {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(14, 10, 31, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.cmdbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-violet) 22%, var(--c-cyan) 62%, transparent);
  opacity: 0.85;
}

.cmdbar__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 36px);
  min-height: var(--bar-h);
  transition: min-height 0.22s ease;
}

.cmdbar__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--c-violet), var(--c-cyan));
  transform: scaleX(0);
  transform-origin: 0 50%;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: #0B0718;
  background: linear-gradient(135deg, var(--c-violet), var(--c-cyan));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  box-shadow: 0 0 14px rgba(108, 59, 255, 0.45);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.2;
}

.brand__name {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--c-head);
}

.brand__status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--c-scale);
  white-space: nowrap;
}

/* 导航 */
.cmdnav { margin-left: auto; }

.cmdnav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.cmdnav__item { display: block; }

.cmdnav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  font-size: 14px;
  font-weight: 700;
  color: #A9A6C4;
  border: 1px solid transparent;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.cmdnav__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  color: var(--c-scale);
  opacity: 0.8;
}

.cmdnav__link:hover {
  color: var(--c-head);
  background: rgba(108, 59, 255, 0.14);
  border-color: var(--line);
}

.cmdnav__link[aria-current="page"] {
  color: #FFFFFF;
  background: rgba(108, 59, 255, 0.26);
  border-color: rgba(108, 59, 255, 0.62);
}

.cmdnav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-violet), var(--c-cyan));
}

.cmdnav__link[aria-current="page"] .cmdnav__idx { color: var(--c-cyan); opacity: 1; }

.cmdnav__aside { display: none; }

/* 右侧动作区 */
.cmdbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
  flex: 0 0 auto;
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 38px;
  place-items: center;
  background: rgba(108, 59, 255, 0.16);
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.nav-toggle:hover { border-color: rgba(35, 224, 208, 0.55); }

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--c-cyan);
  transition: width 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle__bars span:nth-child(1) { width: 18px; }
.nav-toggle__bars span:nth-child(2) { width: 12px; }
.nav-toggle__bars span:nth-child(3) { width: 16px; }

/* 7. 页脚
   ========================================================================== */
.sitefoot {
  position: relative;
  margin-top: clamp(56px, 8vw, 120px);
  background: linear-gradient(180deg, #0B0819 0%, #120C26 42%, #0B0819 100%);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.sitefoot::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(108, 59, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 59, 255, 0.07) 1px, transparent 1px);
  background-size: 40px 40px;
}

.sitefoot__beam {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-violet) 15%, var(--c-cyan) 55%, var(--c-ochre) 82%, transparent);
}

.sitefoot__inner {
  position: relative;
  padding: clamp(40px, 6vw, 72px) 0 28px;
}

.sitefoot__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
  padding-bottom: clamp(28px, 3vw, 40px);
  border-bottom: 1px solid var(--line-soft);
}

.sitefoot__title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--c-head);
}

.sitefoot__title::before {
  content: "";
  width: 10px;
  height: 2px;
  background: var(--c-cyan);
}

.sitefoot__list li + li { margin-top: 9px; }

.sitefoot__list a {
  font-size: 14px;
  color: var(--c-dim);
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.sitefoot__list a:hover {
  color: var(--c-cyan);
  padding-left: 4px;
}

.sitefoot__meta {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(20px, 4vw, 64px);
  padding: clamp(26px, 3.4vw, 36px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.sitefoot__brandname {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--c-head);
}

.sitefoot__pip {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 10px rgba(35, 224, 208, 0.85);
}

.sitefoot__desc {
  max-width: 56ch;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: #8C89AA;
}

.sitefoot__facts {
  display: grid;
  gap: 11px;
  align-content: start;
}

.sitefoot__fact {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  font-size: 13px;
}

.sitefoot__fact dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-scale);
  padding-top: 2px;
}

.sitefoot__fact dd { color: var(--c-dim); line-height: 1.7; }

.sitefoot__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
  padding-top: 22px;
}

.sitefoot__legalnav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.sitefoot__legalnav a {
  font-size: 13px;
  color: var(--c-dim);
  transition: color 0.18s ease;
}

.sitefoot__legalnav a:hover { color: var(--c-cyan); }

.sitefoot__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 0;
  font-size: 12.5px;
  color: var(--c-scale);
}

.sitefoot__copy {
  margin: 0;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6E6B8C;
}

/* 8. 通用组件
   ========================================================================== */
/* 切角面板 */
.panel {
  position: relative;
  padding: clamp(18px, 2vw, 26px);
  background: linear-gradient(180deg, rgba(26, 19, 48, 0.96), rgba(18, 12, 38, 0.96));
  border: 1px solid var(--line);
  clip-path: var(--cut);
}

.panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-cyan));
  opacity: 0.7;
}

.panel--flush { padding: 0; }

.panel--accent {
  border-color: rgba(108, 59, 255, 0.6);
  box-shadow: 0 0 0 1px rgba(35, 224, 208, 0.12) inset;
}

/* 面包屑 */
.crumb { padding: 18px 0 0; }

.crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-scale);
}

.crumb__list > li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.crumb__list > li + li::before {
  content: "/";
  color: rgba(138, 143, 168, 0.5);
}

.crumb__list a { transition: color 0.18s ease; }
.crumb__list a:hover { color: var(--c-cyan); }
.crumb__list [aria-current="page"] { color: var(--c-body); }

/* 图片容器 */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--c-panel-2);
  border: 1px solid var(--line);
}

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.05) 0 1px,
    transparent 1px 4px
  );
  mix-blend-mode: overlay;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }

/* 筛选标签 */
.chipbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 700;
  color: #A9A6C4;
  background: rgba(26, 19, 48, 0.9);
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.chip:hover {
  color: var(--c-head);
  border-color: rgba(35, 224, 208, 0.5);
}

.chip[aria-pressed="true"] {
  color: #FFFFFF;
  background: rgba(108, 59, 255, 0.32);
  border-color: var(--c-violet);
}

.chip__count {
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--c-scale);
}

.chip[aria-pressed="true"] .chip__count { color: var(--c-cyan); }

[data-filter-item][hidden] { display: none; }

/* 统计 */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--c-head);
}

.stat__label {
  font-size: 12.5px;
  color: var(--c-scale);
}

/* 状态点 */
.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.dot--ok { background: var(--c-ok); box-shadow: 0 0 8px rgba(53, 208, 138, 0.7); }
.dot--warn { background: var(--c-warn); box-shadow: 0 0 8px rgba(255, 176, 32, 0.7); }
.dot--live { background: var(--c-cyan); box-shadow: 0 0 8px rgba(35, 224, 208, 0.8); }

/* 9. 动效
   ========================================================================== */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 0.8, 0.3, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

@keyframes cmd-drawer {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}

/* 10. 响应式
   ========================================================================== */
@media (max-width: 1280px) {
  .brand__status { display: none; }
}

@media (max-width: 1080px) {
  .nav-toggle { display: grid; }

  .cmdnav {
    position: fixed;
    top: var(--bar-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 75;
    display: none;
    margin-left: 0;
    padding: 18px 24px 48px;
    overflow-y: auto;
    background: rgba(10, 7, 22, 0.985);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  .cmdnav[data-open="true"] {
    display: block;
    animation: cmd-drawer 0.22s ease both;
  }

  .cmdnav__list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    margin-bottom: 22px;
  }

  .cmdnav__link {
    padding: 15px 6px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
  }

  .cmdnav__link[aria-current="page"] {
    border-color: transparent;
    border-bottom-color: rgba(35, 224, 208, 0.5);
    background: rgba(108, 59, 255, 0.18);
  }

  .cmdnav__link[aria-current="page"]::after { display: none; }

  .cmdnav__aside {
    display: grid;
    gap: 10px;
  }

  .cmdbar__work { display: none; }
}

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sitefoot__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sitefoot__meta { grid-template-columns: minmax(0, 1fr); }
  .sitefoot__copy { margin-left: 0; width: 100%; }
}

@media (max-width: 860px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .wrap { width: min(var(--wrap), 100% - 32px); }
  .cmdbar__inner { gap: 10px; }
  .brand__mark { width: 32px; height: 32px; font-size: 15px; }
  .brand__name { font-size: 15.5px; }
  .cmdnav { padding-inline: 16px; }
  .sitefoot__fact { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .sitefoot__fact dt { padding-top: 0; }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .sitefoot__grid { grid-template-columns: minmax(0, 1fr); }
  .sitefoot__legal { gap: 12px 18px; }
  .sheet ul, .sheet ol { padding-left: 1em; }
}

/* 11. 无障碍与动效降级
   ========================================================================== */
@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;
  }

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

  .cmdnav[data-open="true"] { animation: none; }
}