/* ============================================================
   PG娱乐会馆 · 共享样式 /assets/site.css
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
}

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

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

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

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; }

:root {
  --ink: #0B1B2B;
  --ink-deep: #081522;
  --ink-soft: #102A3F;
  --cyan: #2FE3D0;
  --teal: #0F6F73;
  --coral: #FF6B4A;
  --gold: #D9A441;
  --cream: #F5F0E6;
  --mist: #A9B8C7;
  --alert: #E4572E;

  --line: rgba(169, 184, 199, 0.18);
  --line-soft: rgba(169, 184, 199, 0.1);
  --line-cyan: rgba(47, 227, 208, 0.32);

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

  --frame: 1320px;
  --gutter: clamp(16px, 4vw, 44px);
  --radius: 3px;
  --cut: 16px;
  --header-h: 78px;
}

body {
  min-height: 100%;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(47, 227, 208, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 227, 208, 0.045) 1px, transparent 1px);
  background-size: 88px 88px;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.012em;
}

h1 { font-size: clamp(2rem, 5.4vw, 3.6rem); }
h2 { font-size: clamp(1.55rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.42rem); }
h4 { font-size: 1.05rem; }

p { max-width: 68ch; }

strong { color: #fff; font-weight: 700; }

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

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

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 400;
  padding: 10px 20px;
  background: var(--cyan);
  color: var(--ink-deep);
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 var(--radius) var(--radius);
  transition: top 0.18s ease;
}
.skip-link:focus { top: 0; }

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--frame);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(40px, 6vw, 86px); }

.grid { display: grid; gap: clamp(14px, 2vw, 26px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid--2, .grid--3 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 章节标题 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--cyan);
}

.section-title {
  margin: 0.45em 0 0.4em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.6vw, 2.7rem);
  line-height: 1.18;
}

.section-lede {
  max-width: 62ch;
  color: var(--mist);
  font-size: 1.02rem;
}

/* ---------- 面板 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.6vw, 30px);
  background: linear-gradient(158deg, rgba(16, 42, 63, 0.94), rgba(11, 27, 43, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel--cut {
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.72em 1.35em;
  font-family: var(--font-body);
  font-size: 0.94rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-align: center;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--coral);
  border-color: var(--coral);
  color: #21100B;
}
.btn--primary:hover { background: #ff8869; border-color: #ff8869; }

.btn--ghost {
  background: transparent;
  border-color: var(--line-cyan);
  color: var(--cyan);
}
.btn--ghost:hover { background: rgba(47, 227, 208, 0.12); }

.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: #1A1206;
}
.btn--gold:hover { background: #e8b757; border-color: #e8b757; }

.copy-btn[data-copied="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.26em 0.68em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(47, 227, 208, 0.08);
  border: 1px solid var(--line-cyan);
  border-radius: 2px;
}
.tag--gold {
  color: var(--gold);
  background: rgba(217, 164, 65, 0.1);
  border-color: rgba(217, 164, 65, 0.45);
}
.tag--coral {
  color: var(--coral);
  background: rgba(255, 107, 74, 0.1);
  border-color: rgba(255, 107, 74, 0.45);
}

/* ---------- 面包屑 ---------- */
.breadcrumb { border-bottom: 1px solid var(--line); }

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4em;
  padding: 14px 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.breadcrumb-item { display: inline-flex; align-items: center; gap: 0.45em; }
.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--teal);
}

.breadcrumb-link { color: var(--mist); text-decoration: none; }
.breadcrumb-link:hover { color: var(--cyan); }

.breadcrumb-current { color: var(--cream); }

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    135deg,
    rgba(47, 227, 208, 0.1) 0 1px,
    transparent 1px 18px
  );
  opacity: 0.8;
  pointer-events: none;
}

.media-frame__img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__caption {
  position: absolute;
  z-index: 2;
  left: 0;
  bottom: 0;
  padding: 0.5em 0.9em;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--cream);
  background: rgba(8, 21, 34, 0.84);
  border-top: 1px solid var(--line-cyan);
}

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

/* ---------- 编号索引 ---------- */
.index-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.index-item { background: var(--ink); }

.index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
  padding: 15px clamp(14px, 2vw, 22px);
  color: var(--cream);
  text-decoration: none;
  transition: background-color 0.16s ease;
}
.index-link:hover { background: rgba(47, 227, 208, 0.09); }

.index-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

/* ---------- 元信息 ---------- */
.meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.meta-key {
  color: var(--cyan);
  opacity: 0.8;
  text-transform: uppercase;
}

/* ---------- 规则提示 ---------- */
.rule-note {
  padding: 14px 18px;
  font-size: 0.95rem;
  color: var(--cream);
  background: rgba(217, 164, 65, 0.08);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ---------- 页内快速定位 ---------- */
.anchor-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 0;
}

.anchor-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}
.anchor-link:hover {
  color: var(--cyan);
  border-color: var(--line-cyan);
  background: rgba(47, 227, 208, 0.08);
}

/* ============================================================
   HEADER — 会馆门楣
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: linear-gradient(180deg, rgba(8, 21, 34, 0.98), rgba(11, 27, 43, 0.95));
  border-bottom: 1px solid var(--line-cyan);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(47, 227, 208, 0.055) 0 1px,
    transparent 1px 96px
  );
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: min(40%, 430px);
  background: linear-gradient(90deg, var(--coral), rgba(255, 107, 74, 0));
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  width: 100%;
  max-width: var(--frame);
  margin-inline: auto;
  padding: 13px var(--gutter);
  min-height: var(--header-h);
  flex-wrap: wrap;
}

.header-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--cream);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #1A1206;
  background: linear-gradient(150deg, var(--gold), #b8842b);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.16;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--mist);
}

.primary-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.nav-item { display: flex; }

.nav-link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 12px 9px;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}
.nav-link:hover {
  color: var(--cream);
  background: rgba(47, 227, 208, 0.08);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: rgba(169, 184, 199, 0.72);
  transition: color 0.16s ease;
}

.nav-label {
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-link[aria-current="page"] {
  color: var(--cream);
  background: rgba(47, 227, 208, 0.13);
  border-color: var(--cyan);
}
.nav-link[aria-current="page"] .nav-index { color: var(--gold); }
.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--coral);
}

.header-quick { flex: 0 0 auto; }

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cream);
  text-decoration: none;
  background: rgba(255, 107, 74, 0.14);
  border: 1px solid rgba(255, 107, 74, 0.55);
  border-radius: 2px;
  transition: background-color 0.16s ease, transform 0.16s ease;
}
.quick-link:hover {
  background: rgba(255, 107, 74, 0.28);
  transform: translateY(-1px);
}

.quick-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 107, 74, 0.22);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cream);
  background: rgba(47, 227, 208, 0.1);
  border: 1px solid var(--line-cyan);
  border-radius: 2px;
  cursor: pointer;
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cyan);
  transition: transform 0.2s ease, top 0.2s ease;
}
.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { top: 8px; }

.site-header[data-open="true"] .nav-toggle-bars::before { top: 4px; transform: rotate(45deg); }
.site-header[data-open="true"] .nav-toggle-bars::after { top: 4px; transform: rotate(-45deg); }

/* ============================================================
   FOOTER — 出口层
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 108px);
  background: linear-gradient(180deg, rgba(8, 21, 34, 0.55), rgba(8, 21, 34, 1) 42%);
  border-top: 1px solid var(--line-cyan);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--coral) 0 12%,
    var(--gold) 12% 24%,
    var(--cyan) 24% 40%,
    rgba(47, 227, 208, 0) 40%
  );
}

.footer-inner {
  max-width: var(--frame);
  margin-inline: auto;
  padding: clamp(34px, 5vw, 64px) var(--gutter) 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.5fr) minmax(140px, 0.8fr) minmax(140px, 0.8fr) minmax(230px, 1.2fr);
  gap: clamp(24px, 3vw, 48px);
}

.footer-brand { display: flex; flex-direction: column; gap: 14px; }

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--cream);
}

.footer-seal {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: #1A1206;
  background: linear-gradient(150deg, var(--gold), #b8842b);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.footer-brand-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.footer-brand-note {
  max-width: 34ch;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--mist);
}

.footer-heading {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cream);
  border-bottom: 1px solid var(--line);
}

.footer-heading-num {
  font-size: 0.7rem;
  color: var(--gold);
}

.footer-list { display: grid; gap: 9px; }

.footer-link {
  display: inline-block;
  font-size: 0.92rem;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}
.footer-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}

.contact-list { display: grid; gap: 10px; }

.contact-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.contact-key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.contact-value {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 26px;
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.footer-legal {
  max-width: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.footer-legal--note {
  flex: 1 1 320px;
  min-width: 240px;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0;
  line-height: 1.6;
  color: rgba(169, 184, 199, 0.78);
}

/* ============================================================
   JS 生成元素
   ============================================================ */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  height: 3px;
  pointer-events: none;
  background: rgba(47, 227, 208, 0.08);
}

.scroll-meter-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--coral) 68%, var(--gold));
  transition: transform 0.1s linear;
}

.to-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 290;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 17px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--ink-deep);
  background: var(--cyan);
  border: 0;
  border-radius: 0;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: minmax(220px, 1.4fr) minmax(140px, 1fr) minmax(140px, 1fr);
  }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  :root { --header-h: 0px; }
  html { scroll-padding-top: 150px; }

  .header-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    grid-template-areas: "brand quick toggle";
    align-items: center;
    gap: 10px;
    padding-block: 11px;
  }

  .header-brand { grid-area: brand; min-width: 0; }
  .header-quick { grid-area: quick; }
  .nav-toggle { grid-area: toggle; display: inline-flex; }

  .primary-nav {
    grid-column: 1 / -1;
    display: none;
    margin: 0;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }
  .site-header[data-open="true"] .primary-nav { display: block; }

  .nav-list { flex-direction: column; gap: 0; }
  .nav-item { display: block; }

  .nav-link {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
    padding: 13px 8px;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav-link[aria-current="page"] {
    background: rgba(47, 227, 208, 0.1);
    border-bottom-color: var(--cyan);
  }
  .nav-link[aria-current="page"]::after { display: none; }
  .nav-label { font-size: 1rem; }

  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  body { font-size: 16px; background-size: 64px 64px; }

  .brand-sub { display: none; }
  .brand-mark { width: 36px; height: 36px; font-size: 0.8rem; }
  .brand-title { font-size: 0.94rem; }

  .quick-link { padding: 8px 10px; font-size: 0.78rem; gap: 6px; }
  .nav-toggle { padding: 8px 10px; }
  .nav-toggle-text { display: none; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .footer-bottom { gap: 6px 18px; }
  .contact-row { grid-template-columns: 40px minmax(0, 1fr); }
}

@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;
  }
}