/* ==========================================================================
   乐天棋牌 · 共享样式表  /assets/site.css
   牌桌夜场 × 电玩厅 × 复古出版色
   ========================================================================== */

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

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

body { margin: 0; }

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

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

a { color: inherit; }

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

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

/* ---------- tokens ---------- */
:root {
  --felt: #0B5C46;
  --felt-deep: #06382C;
  --neon: #FF6B2C;
  --neon-soft: #FF8A57;
  --ink: #101A2C;
  --paper: #F6EBD8;
  --paper-dim: #EBDCC2;
  --gold: #D8B36A;
  --violet: #6F3CC3;
  --amber: #E9C46A;
  --mist: #A9C7BA;
  --coral: #D73A2F;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  --cut: 16px;
  --shell-max: 1240px;
  --gutter: clamp(16px, 4vw, 44px);
  --ease: cubic-bezier(.22, .7, .3, 1);
  --speed: .26s;
}

/* ---------- base ---------- */
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

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

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

#main-content { scroll-margin-top: 96px; }

/* ---------- 通用排版原子 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--felt);
}

.ann {
  writing-mode: vertical-rl;
  font-size: 12px;
  letter-spacing: .34em;
  color: var(--felt);
  text-transform: uppercase;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1;
}

/* ---------- 切角面板 ---------- */
.panel {
  background: var(--paper);
  padding: clamp(20px, 3vw, 36px);
  clip-path: polygon(
    var(--cut) 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%,
    0 var(--cut)
  );
}

.panel--felt { background: var(--felt); color: var(--paper); }
.panel--ink { background: var(--ink); color: var(--paper); }

/* ---------- 网格 ---------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 26px);
}

@media (max-width: 900px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .grid-12 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55em;
  padding: .78em 1.45em;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  text-decoration: none;
  border-radius: 0 14px 0 14px;
  transition: background-color var(--speed) var(--ease),
              color var(--speed) var(--ease),
              transform var(--speed) var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--neon);
  color: var(--ink);
}

.btn--primary:hover { background: var(--neon-soft); }

.btn--ghost {
  background: transparent;
  color: var(--paper);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.btn--ghost:hover {
  background: rgba(216, 179, 106, .16);
  color: var(--amber);
}

.btn--dark {
  background: var(--ink);
  color: var(--paper);
}

.btn--dark:hover { background: var(--felt-deep); }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: .4em;
  padding: .22em .8em;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  border-radius: 0 10px 0 10px;
  background: var(--mist);
  color: var(--ink);
}

.tag--gold {
  background: transparent;
  color: var(--gold);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.tag--neon {
  background: var(--neon);
  color: var(--ink);
}

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--felt);
}

.breadcrumbs__item { display: inline-flex; align-items: center; gap: .5em; }

.breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--gold);
}

.breadcrumbs__item a { text-decoration: none; }

.breadcrumbs__item a:hover { color: var(--neon); }

/* ---------- 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--felt-deep);
  border-radius: 0 var(--cut) 0 var(--cut);
  aspect-ratio: 16 / 10;
}

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

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  padding: .45em .9em;
  font-size: 12px;
  letter-spacing: .06em;
  background: rgba(16, 26, 44, .82);
  color: var(--paper);
}

/* ---------- 显现 ---------- */
.reveal-init {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}

.reveal-init.is-shown {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   头部
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: 14px var(--gutter) 0;
  pointer-events: none;
  transition: padding var(--speed) var(--ease);
}

.site-header[data-scrolled="true"] { padding-top: 6px; }

/* skip link */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 200;
  transform: translate(-50%, -180%);
  padding: .6em 1.2em;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  background: var(--neon);
  color: var(--ink);
  border-radius: 0 12px 0 12px;
  pointer-events: auto;
  transition: transform var(--speed) var(--ease);
}

.skip-link:focus { transform: translate(-50%, 0); }

/* 滚动进度 */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 3;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--neon), var(--amber) 55%, var(--violet));
  pointer-events: none;
}

.header-rail {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

/* ---------- 左侧品牌簇 ---------- */
.brand-cluster {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  pointer-events: auto;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px 10px 14px;
  text-decoration: none;
  background: var(--felt);
  color: var(--paper);
  clip-path: polygon(
    var(--cut) 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%,
    0 var(--cut)
  );
  transition: padding var(--speed) var(--ease), background-color var(--speed) var(--ease);
}

.brand-mark:hover { background: var(--felt-deep); }

.brand-mark__pip {
  width: 11px;
  height: 11px;
  flex: none;
  transform: rotate(45deg);
  background: var(--neon);
}

.brand-mark__type {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-mark__name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .05em;
  line-height: 1.15;
  transform: skewX(-4deg);
  transform-origin: left bottom;
  transition: font-size var(--speed) var(--ease);
}

.brand-mark__sub {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
  max-height: 20px;
  overflow: hidden;
  transition: opacity .2s var(--ease), max-height var(--speed) var(--ease);
}

.brand-vert {
  writing-mode: vertical-rl;
  padding: 8px 4px;
  font-size: 11px;
  letter-spacing: .32em;
  line-height: 1;
  background: var(--paper);
  color: var(--felt);
  border-radius: 0 8px 0 8px;
  transition: opacity .2s var(--ease);
}

.site-header[data-scrolled="true"] .brand-mark { padding-top: 6px; padding-bottom: 6px; }
.site-header[data-scrolled="true"] .brand-mark__name { font-size: 17px; }
.site-header[data-scrolled="true"] .brand-mark__sub { opacity: 0; max-height: 0; }
.site-header[data-scrolled="true"] .brand-vert { opacity: 0; }

/* ---------- 右侧导航簇 ---------- */
.nav-cluster {
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
}

.site-nav {
  background: var(--ink);
  padding: 7px;
  clip-path: polygon(
    12px 0,
    100% 0,
    100% calc(100% - 12px),
    calc(100% - 12px) 100%,
    0 100%,
    0 12px
  );
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 1px;
  counter-reset: navidx;
}

.site-nav__list li { counter-increment: navidx; }

.site-nav__link {
  position: relative;
  display: block;
  padding: 7px 11px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .02em;
  white-space: nowrap;
  text-decoration: none;
  color: var(--paper);
  transition: color var(--speed) var(--ease), background-color var(--speed) var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: 4px;
  height: 2px;
  background: var(--neon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--speed) var(--ease);
}

.site-nav__link:hover { color: var(--amber); }
.site-nav__link:hover::after { transform: scaleX(1); }

.site-nav__link[aria-current="page"] {
  color: var(--neon);
  font-weight: 700;
}

.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 快捷胶囊 */
.nav-quick {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quick-pill {
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
  white-space: nowrap;
  text-decoration: none;
  background: var(--neon);
  color: var(--ink);
  border-radius: 0 12px 0 12px;
  transition: background-color var(--speed) var(--ease), color var(--speed) var(--ease);
}

.quick-pill:hover { background: var(--neon-soft); }

.quick-pill--line {
  background: var(--felt);
  color: var(--paper);
  box-shadow: inset 0 0 0 1px var(--gold);
}

.quick-pill--line:hover {
  background: var(--felt-deep);
  color: var(--amber);
}

/* 移动端开关（桌面隐藏） */
.nav-toggle { display: none; }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--speed) var(--ease), opacity .18s var(--ease);
}

.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- 移动端 ---------- */
@media (max-width: 900px) {
  .header-rail { align-items: flex-start; }

  .brand-mark { padding: 9px 14px 9px 12px; }
  .brand-mark__name { font-size: 18px; }
  .brand-mark__sub { display: none; }
  .brand-vert { display: none; }

  .nav-cluster { gap: 0; }

  .nav-toggle {
    position: fixed;
    top: 12px;
    right: var(--gutter);
    z-index: 95;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .1em;
    background: var(--ink);
    color: var(--paper);
    border-radius: 0 12px 0 12px;
    pointer-events: auto;
    transition: background-color var(--speed) var(--ease);
  }

  .nav-toggle:hover { background: var(--felt-deep); }

  .nav-toggle__text { line-height: 1; }

  .nav-quick {
    position: fixed;
    left: var(--gutter);
    bottom: 14px;
    z-index: 95;
    flex-direction: row;
    gap: 8px;
    pointer-events: auto;
  }

  .quick-pill {
    padding: 10px 14px;
    font-size: 13px;
    box-shadow: 0 10px 22px -14px rgba(6, 24, 20, .9);
  }

  .quick-pill--line { box-shadow: inset 0 0 0 1px var(--gold), 0 10px 22px -14px rgba(6, 24, 20, .9); }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 92;
    width: min(86vw, 340px);
    padding: 84px 20px 30px;
    background: var(--felt-deep);
    clip-path: none;
    overflow-y: auto;
    transform: translateX(103%);
    transition: transform .3s var(--ease);
    box-shadow: -24px 0 48px -30px rgba(0, 0, 0, .9);
  }

  .site-header[data-open="true"] .site-nav { transform: translateX(0); }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .site-nav__link {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 13px 4px;
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 800;
    letter-spacing: .02em;
    border-bottom: 1px solid rgba(216, 179, 106, .22);
  }

  .site-nav__link::before {
    content: counter(navidx, decimal-leading-zero);
    flex: none;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .1em;
    color: var(--gold);
  }

  .site-nav__link::after { display: none; }

  .site-header[data-open="true"]::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 91;
    background: rgba(6, 24, 20, .62);
  }
}

@media (max-width: 380px) {
  .nav-toggle { padding: 9px 12px; }
  .quick-pill { padding: 9px 11px; }
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 110px);
  padding: clamp(38px, 6vw, 70px) var(--gutter) clamp(22px, 3vw, 36px);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background: linear-gradient(
    90deg,
    var(--neon) 0 22%,
    var(--amber) 22% 46%,
    var(--violet) 46% 70%,
    var(--felt) 70% 100%
  );
}

.site-footer::after {
  content: "LETIAN";
  position: absolute;
  right: -12px;
  bottom: -34px;
  z-index: 0;
  font-family: var(--font-mono);
  font-size: clamp(76px, 15vw, 190px);
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1;
  color: rgba(216, 179, 106, .07);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
}

.footer-head {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.95fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

/* 左：品牌块 */
.footer-brand__mark {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1.2;
  text-decoration: none;
  color: var(--paper);
  transform: skewX(-4deg);
  transform-origin: left bottom;
}

.footer-brand__mark:hover { color: var(--amber); }

.footer-brand__line {
  margin-top: .5em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--gold);
}

.footer-brand__text {
  margin-top: .9em;
  max-width: 30ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* 右：三栏轨道 */
.footer-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.6vw, 34px);
}

.footer-col__title {
  margin-bottom: .9em;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .28em;
  color: var(--gold);
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: .55em;
}

.footer-col__list a {
  font-size: 15px;
  text-decoration: none;
  color: var(--paper);
  background-image: linear-gradient(var(--neon), var(--neon));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 2px;
  transition: color var(--speed) var(--ease), background-size var(--speed) var(--ease);
}

.footer-col__list a:hover {
  color: var(--amber);
  background-size: 100% 2px;
}

.footer-col__list a[aria-current="page"] { color: var(--neon); }

/* 票根 */
.footer-ticket {
  position: relative;
  padding: 16px 16px 14px;
  background: var(--felt);
  color: var(--paper);
  border-radius: 0 14px 0 14px;
  box-shadow: inset 0 0 0 1px rgba(216, 179, 106, .45);
}

.footer-ticket__label {
  margin-bottom: .7em;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--amber);
}

.footer-ticket__row {
  display: flex;
  gap: .6em;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.7;
}

.footer-ticket__row + .footer-ticket__row { margin-top: .25em; }

.footer-ticket__k {
  flex: none;
  width: 2.6em;
  color: var(--mist);
  letter-spacing: .1em;
}

.footer-ticket__v {
  font-family: var(--font-mono);
  font-size: 13px;
  word-break: break-all;
  color: var(--paper);
}

/* 底部条 */
.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5em 1.4em;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 18px;
  border-top: 1px solid rgba(216, 179, 106, .28);
}

.footer-base__item {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.footer-note {
  margin-top: .8em;
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(169, 199, 186, .78);
}

@media (max-width: 900px) {
  .footer-head { grid-template-columns: minmax(0, 1fr); }
  .footer-brand__text { max-width: 46ch; }
}

@media (max-width: 640px) {
  .footer-rail { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-ticket { grid-column: 1 / -1; }
  .site-footer::after { font-size: 68px; bottom: -14px; }
}

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

  .reveal-init {
    opacity: 1;
    transform: none;
  }

  .scroll-meter { display: none; }
}