/* =========================================================
   365棋牌汇 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 页头 / 页脚 / 通用组件
   ========================================================= */

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

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

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

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

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

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

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

table { border-collapse: collapse; width: 100%; }

/* ---------- tokens ---------- */
:root {
  --ink-green: #0D1F19;
  --charcoal: #14161A;
  --slate: #39443F;
  --moss: #5A7A66;
  --clay: #A8623C;
  --amber: #E0A94F;
  --orange: #EF6A2E;
  --white: #F4F6F3;
  --linen: #E9E3D6;
  --sage: #8FA096;
  --steel: #5C6A64;
  --ink: #080E0B;

  --edge: 2px;
  --shadow-1: 5px 5px 0 0 var(--ink);
  --shadow-2: 8px 8px 0 0 var(--ink);

  --wrap: 1280px;
  --pad: clamp(16px, 4vw, 40px);
  --gap: clamp(18px, 2.6vw, 32px);
  --section-y: clamp(64px, 9vw, 104px);

  --font-display: "Oswald", "Archivo Narrow", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-body: "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* ---------- base ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink-green);
  background-image:
    radial-gradient(120% 80% at 82% -12%, rgba(90, 122, 102, .30), transparent 62%),
    radial-gradient(80% 60% at -6% 4%, rgba(168, 98, 60, .16), transparent 58%);
  background-attachment: fixed;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
}

body ::selection { background: var(--amber); color: var(--charcoal); }

#main-content { scroll-margin-top: 140px; }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

main { display: block; }

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(36px, 5vw, 60px); }

.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--split { grid-template-columns: 5fr 7fr; }

.stack { display: grid; gap: var(--gap); }
.stack--sm { display: grid; gap: 12px; }

.rule { border: 0; border-top: 1px solid var(--slate); }

/* ---------- typography ---------- */
.h-display {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(44px, 7vw, 116px);
  line-height: .98;
  letter-spacing: -.02em;
}

.h-section {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 3.6vw, 46px);
  line-height: 1.1;
  letter-spacing: -.01em;
}

.h-sub {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.3;
}

.lead {
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.7;
  color: var(--linen);
  max-width: 46ch;
}

.numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: .02em;
}

.label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sage);
}

.muted { color: var(--sage); }

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--white);
}

.prose > * + * { margin-top: 1.05em; }
.prose h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin-top: 1.8em;
}
.prose h3 { font-size: 19px; font-weight: 600; margin-top: 1.6em; }
.prose a { color: var(--amber); border-bottom: 1px solid rgba(224, 169, 79, .45); }
.prose a:hover { border-bottom-color: var(--orange); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose ul li { list-style: square; }
.prose ol li { list-style: decimal; }
.prose li + li { margin-top: .4em; }

/* ---------- breadcrumb ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
  padding-block: clamp(18px, 2.4vw, 28px) 0;
}
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 10px; }
.breadcrumb a { color: var(--sage); }
.breadcrumb a:hover { color: var(--amber); }
.breadcrumb li + li::before { content: "/"; margin-right: 10px; color: var(--steel); }
.breadcrumb [aria-current="page"] { color: var(--linen); }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--amber);
  color: var(--charcoal);
  border: var(--edge) solid var(--ink);
  font-weight: 700;
  font-size: 14px;
  transition: top .18s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--charcoal);
  border-bottom: var(--edge) solid var(--steel);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: calc(var(--edge) * -1);
  height: var(--edge);
  width: 0;
  background: var(--amber);
  z-index: 3;
}

.cmdbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "brand season util"
    "nav nav nav";
  align-items: center;
  column-gap: clamp(14px, 2.2vw, 36px);
}

.brand {
  grid-area: brand;
  display: grid;
  gap: 2px;
  padding: 12px 0;
  align-self: stretch;
  align-content: center;
}
.brand__mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--white);
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--sage);
}
.brand__line {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--clay);
}
.brand:hover .brand__mark { color: var(--amber); }

.season-status {
  grid-area: season;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sage);
  justify-self: start;
}
.season-status__chip {
  padding: 3px 9px;
  background: var(--slate);
  border: 1px solid var(--steel);
  color: var(--linen);
  font-size: 11px;
  letter-spacing: .16em;
}
.season-status__year { color: var(--amber); font-weight: 600; }
.season-status__round { color: var(--sage); }

.nav-toggle {
  grid-area: toggle;
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: transparent;
  border: var(--edge) solid var(--steel);
  color: var(--white);
  font-size: 12px;
  letter-spacing: .14em;
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--orange); }
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 4px; width: 16px; }
.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--amber);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.nav-toggle__text { white-space: nowrap; }

.site-nav {
  grid-area: nav;
  border-top: 1px solid var(--slate);
}
.nav-list { display: flex; overflow-x: auto; }
.nav-list li:not(:last-child) { border-right: 1px solid var(--slate); }
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  color: var(--sage);
  font-size: 15px;
  white-space: nowrap;
  border-bottom: var(--edge) solid transparent;
  transition: color .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.nav-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--steel);
  transition: color .18s ease;
}
.nav-link:hover { color: var(--white); box-shadow: inset 0 0 0 1px var(--orange); }
.nav-link:hover .nav-index { color: var(--orange); }
.nav-link[aria-current="page"] {
  color: var(--white);
  font-weight: 700;
  border-bottom-color: var(--amber);
}
.nav-link[aria-current="page"] .nav-index { color: var(--amber); }

.utility-bar {
  grid-area: util;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.4vw, 20px);
  justify-self: end;
}
.util-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.util-link:hover { color: var(--white); border-bottom-color: var(--orange); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 20px;
  border: var(--edge) solid var(--steel);
  background: transparent;
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn--cta {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--charcoal);
  box-shadow: 5px 5px 0 0 var(--ink);
  white-space: nowrap;
}
.btn--cta:hover {
  background: var(--white);
  border-color: var(--white);
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0 0 var(--ink);
}
.btn--ghost { background: transparent; }
.btn--ghost:hover { box-shadow: inset 0 0 0 1px var(--orange); border-color: var(--orange); }

/* ---------- footer ---------- */
.site-footer {
  margin-top: var(--section-y);
  background: var(--charcoal);
  border-top: var(--edge) solid var(--steel);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 1.4fr;
  gap: clamp(28px, 5vw, 72px);
  padding-block: clamp(48px, 7vw, 84px) clamp(30px, 4vw, 48px);
}
.footer-brand__mark {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--white);
}
.footer-brand__line {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber);
}
.footer-brand__note {
  margin-top: 18px;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: clamp(18px, 2.6vw, 36px);
}
.footer-col__title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--slate);
}
.footer-list { margin-top: 12px; }
.footer-link {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--linen);
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.footer-link:hover { color: var(--amber); border-bottom-color: var(--amber); }

.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px clamp(18px, 3vw, 40px);
  padding-block: clamp(24px, 3vw, 38px);
  border-top: 1px solid var(--slate);
  border-bottom: 1px solid var(--slate);
}
.contact-item { display: grid; gap: 6px; align-content: start; }
.contact-item__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--steel);
  text-transform: uppercase;
}
.contact-item__value {
  font-size: 15px;
  color: var(--white);
  overflow-wrap: anywhere;
}
.footer-contact__note {
  grid-column: 1 / -1;
  max-width: 70ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  padding-block: 22px 44px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--sage);
}
.footer-legal__icp { color: var(--linen); }
.footer-legal__year { color: var(--steel); }

/* ---------- cards / plates ---------- */
.card {
  padding: clamp(18px, 2.2vw, 28px);
  background: var(--slate);
  border: var(--edge) solid var(--steel);
  box-shadow: var(--shadow-1);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }

.plate {
  padding: clamp(18px, 2.4vw, 30px);
  background: var(--linen);
  color: var(--charcoal);
  border: var(--edge) solid var(--charcoal);
  box-shadow: var(--shadow-1);
}
.plate__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--clay);
}
.plate a { color: var(--clay); border-bottom: 1px solid rgba(168, 98, 60, .5); }
.plate a:hover { border-bottom-color: var(--orange); }

/* ---------- figure (image placeholders) ---------- */
.figure { display: grid; gap: 12px; }
.figure__media {
  position: relative;
  overflow: hidden;
  background: var(--slate);
  border: var(--edge) solid var(--steel);
  box-shadow: var(--shadow-1);
}
.figure__media img,
.figure__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.86) contrast(1.06);
}
.figure--4x5 .figure__media { aspect-ratio: 4 / 5; }
.figure--16x9 .figure__media { aspect-ratio: 16 / 9; }
.figure--1x1 .figure__media { aspect-ratio: 1 / 1; }
.figure__grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .32;
  background-image: radial-gradient(rgba(8, 14, 11, .55) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: multiply;
}
.figure__caption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sage);
}

/* ---------- data devices ---------- */
.scoreboard {
  display: inline-flex;
  align-items: stretch;
  background: var(--charcoal);
  border: var(--edge) solid var(--steel);
  box-shadow: var(--shadow-1);
}
.scoreboard__num {
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--amber);
}
.scoreboard__num + .scoreboard__num { border-left: 1px solid var(--slate); }
.scoreboard__meta {
  align-self: center;
  padding: 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sage);
}

.jersey {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  padding: 3px 9px;
  background: var(--orange);
  color: var(--charcoal);
  border: var(--edge) solid var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
}

.year-ruler {
  display: flex;
  overflow-x: auto;
  border-top: var(--edge) solid var(--steel);
  border-bottom: var(--edge) solid var(--steel);
  font-family: var(--font-mono);
}
.year-ruler__item {
  flex: 0 0 auto;
  padding: 10px 18px;
  border-right: 1px solid var(--slate);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--sage);
  white-space: nowrap;
  transition: color .18s ease, background-color .18s ease;
}
.year-ruler__item:hover { color: var(--white); background: var(--slate); }
.year-ruler__item[aria-current="true"],
.year-ruler__item[aria-current="page"] { color: var(--amber); background: var(--slate); }

/* ---------- accordion ---------- */
[data-accordion] {
  border-left: var(--edge) solid transparent;
  padding-left: 16px;
  transition: border-color .2s ease;
}
[data-accordion] + [data-accordion] { border-top: 1px solid var(--slate); }
[data-accordion] > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}
[data-accordion] > summary::-webkit-details-marker { display: none; }
[data-accordion] > summary::after {
  content: "›";
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--sage);
  transition: transform .2s ease, color .2s ease;
}
[data-accordion][open] { border-left-color: var(--orange); }
[data-accordion][open] > summary::after { transform: rotate(90deg); color: var(--orange); }
[data-accordion] .accordion-body {
  padding: 0 0 20px;
  color: var(--sage);
  font-size: 15px;
  line-height: 1.75;
  max-width: 68ch;
}

/* ---------- motion ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .28s ease, transform .28s ease;
}
html.js [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- focus ---------- */
:focus-visible {
  outline: var(--edge) solid var(--amber);
  outline-offset: 3px;
}
a:focus-visible,
button:focus-visible { outline-offset: 2px; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .brand__line { display: none; }
  .util-link { font-size: 11px; }
}

@media (max-width: 900px) {
  :root { --section-y: clamp(48px, 12vw, 72px); }

  body { font-size: 16px; }

  .cmdbar {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand toggle"
      "nav nav"
      "util util";
    column-gap: 12px;
    padding-block: 10px 14px;
  }

  .brand { padding: 4px 0; }
  .brand__mark { font-size: 20px; }
  .season-status { display: none; }

  .nav-toggle { display: inline-flex; }

  .site-nav { display: none; margin-top: 12px; }
  .site-nav[data-open] { display: block; }
  .nav-list { flex-direction: column; }
  .nav-list li:not(:last-child) { border-right: 0; }
  .nav-link {
    padding: 14px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--slate);
  }

  .utility-bar {
    justify-self: stretch;
    justify-content: stretch;
    padding-top: 12px;
    border-top: 1px solid var(--slate);
  }
  .util-link { display: none; }
  .btn--cta { width: 100%; }

  .grid--2,
  .grid--3,
  .grid--split { grid-template-columns: minmax(0, 1fr); }

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

@media (max-width: 620px) {
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .footer-legal__copy { line-height: 1.6; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}