/* ==========================================================================
   梦想棋牌局 · 共享样式表 /assets/site.css
   夜墨绿底 + 蓝图网格 + 牌面象牙白 + 筹码红点缀
   ========================================================================== */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; }
h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
[id] { scroll-margin-top: 84px; }

/* ---------- tokens ---------- */
:root {
  --ink: #0C1E19;
  --char: #15161A;
  --rock: #3B403C;
  --moss: #56715A;
  --clay: #B5674A;
  --chip: #C63A2F;
  --ivory: #FBF7EC;
  --cream: #EFE9DA;
  --silver: #C9D6D2;
  --gold: #D8A64A;

  --line-soft: rgba(201, 214, 210, 0.16);
  --line-mid: rgba(201, 214, 210, 0.32);

  --font-display: "LXGW WenKai", "Noto Serif SC", "Songti SC", Georgia, serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;

  --shadow-hard: 9px 9px 0 rgba(0, 0, 0, 0.5);
  --shadow-card: 6px 6px 0 rgba(0, 0, 0, 0.42);
  --radius: 2px;
  --wrap: 1240px;
  --pad: clamp(16px, 4vw, 40px);
}

/* ---------- base ---------- */
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--ivory);
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(201, 214, 210, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 214, 210, 0.045) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: center top;
}

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

#main-content { display: block; }

/* ---------- typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 8vw, 108px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--ivory);
}
.display--sm { font-size: clamp(30px, 5vw, 60px); }

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.22;
  letter-spacing: 0.01em;
}
.section-sub {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.32;
}
.lede {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.75;
  color: rgba(239, 233, 218, 0.86);
  max-width: 48ch;
}
.note {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(201, 214, 210, 0.68);
}
.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clay);
}
.index-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}
.index-tag::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clay);
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}
.wrap--narrow { max-width: 820px; }

.section { padding-block: clamp(44px, 7vw, 96px); }
.section--tight { padding-block: clamp(28px, 4vw, 52px); }

.section--cream { background: var(--cream); color: var(--char); }
.section--char { background: var(--char); }
.section--moss { background: rgba(86, 113, 90, 0.22); }

.section--cream .lede { color: rgba(21, 22, 26, 0.78); }
.section--cream .note { color: rgba(21, 22, 26, 0.6); }
.section--cream .index-tag { color: var(--clay); }
.section--cream .section-title { color: var(--char); }
.section--cream .kicker { color: var(--clay); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px 22px;
  padding-bottom: clamp(18px, 2.4vw, 30px);
  border-bottom: 2px solid var(--line-soft);
  margin-bottom: clamp(22px, 3vw, 40px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.2vw, 28px);
}
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-12 { grid-column: span 12; }

/* ---------- panels ---------- */
.panel {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  background: rgba(21, 22, 26, 0.68);
  box-shadow: var(--shadow-hard);
}
.panel--ivory {
  background: var(--ivory);
  color: var(--char);
  border-color: var(--char);
  box-shadow: 9px 9px 0 rgba(21, 22, 26, 0.55);
}
.panel--flush { padding: 0; overflow: hidden; }
.panel--quiet { box-shadow: var(--shadow-card); background: rgba(21, 22, 26, 0.5); }

.tilt-l, .tilt-r { transition: transform 0.22s cubic-bezier(0.3, 0.8, 0.4, 1); }
.tilt-l { transform: rotate(-1.6deg); }
.tilt-r { transform: rotate(1.8deg); }
.tilt-l:hover, .tilt-r:hover, .tilt-l:focus-within, .tilt-r:focus-within { transform: rotate(0deg); }

/* ---------- chips / data ---------- */
.chip-stack { display: grid; gap: 12px; }
.chip-card {
  position: relative;
  padding: 16px 18px 16px 26px;
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  background: rgba(21, 22, 26, 0.7);
  box-shadow: var(--shadow-card);
}
.chip-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 7px;
  background: repeating-linear-gradient(180deg, var(--chip) 0 9px, var(--gold) 9px 14px);
}
.chip-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
}
.chip-card__line {
  margin-top: 6px;
  font-size: 14.5px;
  color: rgba(201, 214, 210, 0.72);
}

.data-list { display: grid; gap: 10px; }
.data-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--clay);
  background: rgba(21, 22, 26, 0.55);
}
.section--cream .data-row { background: rgba(21, 22, 26, 0.06); }
.data-row__key { font-size: 15px; color: rgba(239, 233, 218, 0.82); }
.section--cream .data-row__key { color: rgba(21, 22, 26, 0.78); }
.data-row__val {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--chip);
  text-shadow: 0 0 16px rgba(198, 58, 47, 0.28);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line-mid);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}
.badge--clay { border-color: var(--clay); color: var(--clay); }
.badge--chip { border-color: var(--chip); color: var(--chip); }
.badge--gold { border-color: var(--gold); color: var(--gold); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ivory);
  font-size: 15px;
  letter-spacing: 0.04em;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
  transition: transform 0.18s ease, border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}
.btn:hover {
  transform: translate(-1px, -1px);
  border-color: var(--gold);
  color: var(--gold);
}
.btn--chip {
  background: var(--chip);
  border-color: var(--chip);
  color: var(--ivory);
}
.btn--chip:hover {
  background: #d4473a;
  border-color: var(--gold);
  color: var(--ivory);
}
.btn--ghost { border-color: rgba(201, 214, 210, 0.42); }
.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--char);
}
.btn--gold:hover { color: var(--char); border-color: var(--ivory); }

/* ---------- breadcrumbs ---------- */
.breadcrumbs {
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(201, 214, 210, 0.62);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.breadcrumbs li { display: flex; align-items: center; gap: 8px; }
.breadcrumbs li::after { content: "/"; opacity: 0.45; }
.breadcrumbs li:last-child::after { content: ""; }
.breadcrumbs a:hover { color: var(--gold); }
.section--cream .breadcrumbs { color: rgba(21, 22, 26, 0.6); }

/* ---------- filter ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: clamp(16px, 2.4vw, 26px);
}
.filter-btn {
  padding: 8px 14px;
  border: 2px solid var(--line-mid);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver);
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}
.filter-btn:hover { border-color: var(--gold); color: var(--gold); }
.filter-btn[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--char);
}
.filter-empty {
  display: none;
  padding: 20px;
  border: 2px dashed var(--line-mid);
  border-radius: var(--radius);
  font-size: 15px;
  color: rgba(201, 214, 210, 0.7);
}
[data-filter-item][data-hidden="true"] { display: none; }

/* ---------- figures ---------- */
.figure {
  margin: 0;
  position: relative;
  display: block;
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  background: var(--char);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}
.figure__media {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background:
    linear-gradient(140deg, #16302a 0%, var(--ink) 55%, #1c1a14 100%);
}
.figure--wide .figure__media { aspect-ratio: 16 / 9; }
.figure--tall .figure__media { aspect-ratio: 3 / 4; }
.figure--square .figure__media { aspect-ratio: 1 / 1; }
.figure__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(201, 214, 210, 0.7);
}
.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(14px, 2vw, 22px);
}

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -70px;
  z-index: 120;
  padding: 10px 18px;
  border-radius: var(--radius);
  background: var(--gold);
  color: var(--char);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  transition: top 0.18s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- header ---------- */
.site-header {
  position: relative;
  z-index: 40;
  color: var(--ivory);
  background: linear-gradient(180deg, #0C1E19 0%, #102420 100%);
  border-bottom: 2px solid var(--rock);
}
.header-frame {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px var(--pad) 0;
}
.header-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 16px;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 14px;
  order: 1;
}
.brand-mark__seal {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  border: 2px solid var(--chip);
  border-radius: var(--radius);
  background: var(--chip);
  color: var(--ivory);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45);
}
.brand-mark__text { display: grid; gap: 2px; }
.brand-mark__name {
  font-family: var(--font-display);
  font-size: clamp(21px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
.brand-mark__sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: rgba(201, 214, 210, 0.7);
}

.header-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
  text-align: right;
}
.status-dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(216, 166, 74, 0.18);
  animation: dot-breathe 2.8s ease-in-out infinite;
}
@keyframes dot-breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.78); }
}
.header-status__label { color: rgba(201, 214, 210, 0.75); }
.header-status__ver {
  padding: 2px 8px;
  border: 1px solid rgba(216, 166, 74, 0.5);
  border-radius: var(--radius);
  color: var(--gold);
}
.header-status__note {
  flex-basis: 100%;
  font-size: 11.5px;
  color: rgba(201, 214, 210, 0.55);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  order: 2;
  padding: 10px 14px;
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.28);
  color: var(--ivory);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.4);
  transition: border-color 0.18s ease, color 0.18s ease;
}
.nav-toggle:hover { border-color: var(--gold); color: var(--gold); }
.nav-toggle__bars { display: grid; gap: 4px; width: 18px; }
.nav-toggle__bars i { display: block; height: 2px; background: currentColor; }

.header-bar { border-top: 1px solid var(--line-mid); }
.site-nav { display: flex; align-items: stretch; }
.nav-list { display: flex; flex-wrap: wrap; }
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 14px 18px;
  border-right: 1px solid var(--line-soft);
  color: var(--silver);
  transition: color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}
.nav-link__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(201, 214, 210, 0.5);
}
.nav-link__label { font-size: 15px; letter-spacing: 0.04em; }
.nav-link:hover { color: var(--gold); background: rgba(216, 166, 74, 0.08); }
.nav-link:hover .nav-link__idx { color: var(--gold); }
.nav-link[aria-current="page"] {
  color: var(--ivory);
  background: rgba(198, 58, 47, 0.18);
  box-shadow: inset 0 -3px 0 var(--chip);
}
.nav-link[aria-current="page"] .nav-link__idx { color: var(--gold); }

.nav-note {
  margin-left: auto;
  padding: 14px 18px;
  border-left: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(201, 214, 210, 0.55);
  white-space: nowrap;
  align-self: center;
}

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  background: rgba(201, 214, 210, 0.12);
  pointer-events: none;
}
.scroll-meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--chip) 0%, var(--gold) 100%);
}

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: var(--char);
  color: var(--ivory);
  border-top: 2px solid var(--rock);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--chip) 0 30px, transparent 30px 46px);
  opacity: 0.5;
}
.footer-frame {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 76px) var(--pad) 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.15fr 1.3fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.footer-brand {
  font-family: var(--font-display);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.02em;
}
.footer-tag {
  margin-top: 12px;
  max-width: 36em;
  font-size: 15px;
  color: rgba(201, 214, 210, 0.72);
}
.footer-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}
.footer-col__title {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-mid);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}
.footer-list { margin-top: 14px; display: grid; gap: 10px; }
.footer-link {
  font-size: 15px;
  color: rgba(239, 233, 218, 0.82);
  transition: color 0.18s ease, padding-left 0.18s ease;
}
.footer-link:hover { color: var(--gold); padding-left: 6px; }

.footer-meta {
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 32px);
}
.footer-meta__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(201, 214, 210, 0.55);
}
.footer-meta__value {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--ivory);
  word-break: break-word;
}
.footer-base {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 24px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(201, 214, 210, 0.6);
}
.footer-base__copy { color: rgba(201, 214, 210, 0.7); }
.footer-base__icp { color: rgba(201, 214, 210, 0.75); }
.footer-base__note { flex-basis: 100%; color: rgba(201, 214, 210, 0.5); }

/* ---------- reveal ---------- */
[data-reveal] { opacity: 0; transition: opacity 0.5s ease; }
[data-reveal].is-inview { opacity: 1; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .nav-note { display: none; }
}

@media (max-width: 900px) {
  body { font-size: 16px; background-size: 56px 56px; }

  .header-top { flex-wrap: wrap; align-items: center; gap: 14px; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-status {
    order: 3;
    flex-basis: 100%;
    padding-top: 12px;
    border-top: 1px dashed var(--line-mid);
    text-align: left;
  }
  .site-nav { display: block; }
  .nav-list {
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.3, 0.8, 0.4, 1);
  }
  .site-nav[data-open] .nav-list { max-height: 100vh; overflow-y: auto; }
  .nav-item { border-bottom: 1px solid var(--line-soft); }
  .nav-item:last-child { border-bottom: 0; }
  .nav-link { border-right: 0; padding: 15px 2px; }
  .nav-link__label { font-size: 16px; }

  .span-3, .span-4 { grid-column: span 6; }
  .span-5, .span-6, .span-7, .span-8, .span-9 { grid-column: span 12; }

  .footer-top { grid-template-columns: 1fr; }
  .footer-meta { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 620px) {
  .span-3, .span-4 { grid-column: span 12; }
  .brand-mark__seal { width: 40px; height: 40px; font-size: 21px; }
  .footer-nav { grid-template-columns: 1fr; }
  .footer-cta .btn { flex: 1 1 auto; justify-content: center; }
}

@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;
  }
  [data-reveal] { opacity: 1 !important; }
  .status-dot { animation: none !important; opacity: 1 !important; transform: none !important; }
  .tilt-l, .tilt-r { transform: none !important; }
}