/* ==========================================================================
   杏宇娱乐 XINGYU ｜ base.css
   沙盘底纹 + 物资卡 + 航线条：令牌、重置、版式、原子组件、站点外壳
   页面区块样式见 blocks.css
   ========================================================================== */

:root {
  /* 色板：沙盘纸 / 军绿 / 高可视橙 / 警示黄 */
  --sand: #e8ddc6;
  --sand-2: #dbcdaf;
  --paper: #f7f1e1;
  --ink: #222a1b;
  --ink-2: #4c5539;
  --ink-3: #77805f;
  --olive: #222a1b;
  --olive-2: #39432b;
  --orange: #cf4a15;
  --orange-2: #a83a0d;
  --yellow: #e7b32a;
  --teal: #2b6455;
  --line: rgba(34, 42, 27, 0.16);
  --line-2: rgba(34, 42, 27, 0.4);

  /* 字体 */
  --mono: ui-monospace, "Cascadia Mono", "Consolas", "Courier New", monospace;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* 尺度 */
  --wrap: 1180px;
  --gut: 22px;
  --sp-1: 10px;
  --sp-2: 18px;
  --sp-3: 28px;
  --sp-4: 44px;
  --sp-5: 72px;
  --shadow: 0 1px 0 rgba(34, 42, 27, 0.1), 0 16px 34px -24px rgba(34, 42, 27, 0.6);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font: 400 16px/1.75 var(--sans);
  background-color: var(--sand);
  background-image:
    radial-gradient(1100px 520px at 84% -8%, rgba(231, 179, 42, 0.26), transparent 68%),
    radial-gradient(760px 420px at 6% 12%, rgba(43, 100, 85, 0.1), transparent 70%),
    repeating-linear-gradient(0deg, rgba(34, 42, 27, 0.055) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(90deg, rgba(34, 42, 27, 0.055) 0 1px, transparent 1px 26px);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5 {
  margin: 0 0 0.6em;
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4.4vw, 3.35rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.14rem; }
h4 { font-size: 0.98rem; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
a { color: var(--orange); text-decoration: none; }
a:hover { color: var(--orange-2); }
img, svg { max-width: 100%; }
ul, ol { margin: 0 0 1em; padding-left: 1.15em; }
li { margin: 0.3em 0; }
em { font-style: normal; color: var(--orange); }
strong { font-weight: 700; }
code, kbd, samp { font-family: var(--mono); }
hr { border: 0; }
::selection { background: var(--yellow); color: var(--olive); }

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

/* ---------- 版式骨架 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gut);
}

.section { padding: var(--sp-5) 0; position: relative; }
.section--tight { padding: var(--sp-4) 0; }
.section--ink {
  background: var(--olive);
  color: var(--paper);
  background-image:
    repeating-linear-gradient(0deg, rgba(232, 221, 198, 0.07) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(232, 221, 198, 0.07) 0 1px, transparent 1px 24px);
}
.section--ink h2, .section--ink h3 { color: var(--paper); }
.section--ink a { color: var(--yellow); }

.grid { display: grid; gap: var(--sp-3); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cols {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--sp-4);
  align-items: start;
}
.stack > * + * { margin-top: var(--sp-2); }

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background-image: repeating-linear-gradient(90deg, var(--line-2) 0 8px, transparent 8px 16px);
}

/* ---------- 标题组 ---------- */
.sec-head {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  margin-bottom: var(--sp-3);
}
.sec-coord {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--line-2);
  background: var(--paper);
  font: 700 0.66rem/1 var(--mono);
  letter-spacing: 0.16em;
  color: var(--ink-2);
  text-transform: uppercase;
  white-space: nowrap;
}
.sec-coord::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--orange);
  box-shadow: inset 0 0 0 2px var(--paper);
}
.sec-en {
  margin: 0 0 6px;
  font: 600 0.68rem/1.4 var(--mono);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.sec-title { margin: 0; }
.sec-lead {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--ink-2);
}

.kicker {
  margin: 0 0 14px;
  font: 700 0.7rem/1.5 var(--mono);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.kicker span { color: var(--orange); }
.mono { font-family: var(--mono); }
.dim { color: var(--ink-3); }
.center { text-align: center; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1.5px solid var(--olive);
  background: transparent;
  color: var(--olive);
  font: 700 0.85rem/1 var(--sans);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.btn::after {
  content: "";
  width: 6px;
  height: 6px;
  background: currentColor;
  transition: transform 0.18s ease;
}
.btn:hover {
  background: var(--olive);
  color: var(--paper);
  transform: translateY(-1px);
}
.btn:hover::after { transform: translateX(3px); }
.btn--solid {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff8ea;
}
.btn--solid:hover {
  background: var(--orange-2);
  border-color: var(--orange-2);
  color: #fff8ea;
}
.btn--small { padding: 8px 14px; font-size: 0.78rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }

/* ---------- 标签 / 徽标 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-2);
  font: 600 0.68rem/1.6 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}
.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--ink-3);
}
.tag--ok { border-color: var(--teal); color: var(--teal); }
.tag--ok::before { background: var(--teal); }
.tag--warn { border-color: var(--orange); color: var(--orange); }
.tag--warn::before { background: var(--orange); }
.tag--gold { border-color: #b58a12; color: #8a6808; }
.tag--gold::before { background: var(--yellow); }

/* ---------- 面板（左上角打孔 + 右下折角） ---------- */
.panel {
  position: relative;
  padding: var(--sp-3);
  background: var(--paper);
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow);
}
.panel::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sand);
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.panel::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, transparent 50%, var(--sand-2) 50%);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
}
.panel > .panel-h {
  margin: 0 0 14px;
  padding-left: 22px;
  font: 700 0.72rem/1.4 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- 数字板 ---------- */
.board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line-2);
  background: var(--olive);
  color: var(--paper);
  background-image:
    repeating-linear-gradient(0deg, rgba(232, 221, 198, 0.08) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(90deg, rgba(232, 221, 198, 0.08) 0 1px, transparent 1px 22px);
}
.board-item {
  padding: 22px 20px;
  border-right: 1px solid rgba(232, 221, 198, 0.22);
}
.board-item:last-child { border-right: 0; }
.board-num {
  display: block;
  font: 700 2.1rem/1 var(--mono);
  color: var(--yellow);
  letter-spacing: -0.02em;
}
.board-num small { font-size: 0.85rem; margin-left: 2px; letter-spacing: 0; }
.board-label {
  display: block;
  margin-top: 8px;
  font-size: 0.78rem;
  line-height: 1.5;
  color: rgba(247, 241, 225, 0.78);
  letter-spacing: 0.04em;
}

/* ---------- 说明块 ---------- */
.note {
  margin-top: var(--sp-2);
  padding: 14px 16px;
  border-left: 3px solid var(--yellow);
  background: rgba(231, 179, 42, 0.14);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--ink-2);
}
.note b { color: var(--ink); }
.note--safe {
  border-left-color: var(--teal);
  background: rgba(43, 100, 85, 0.1);
}

/* ---------- 长文正文 ---------- */
.prose p { color: var(--ink-2); }
.prose > p + p { margin-top: 0.9em; }
.prose h3 { margin: 26px 0 8px; }
.prose ul, .prose ol { color: var(--ink-2); font-size: 0.94rem; }
.prose li { margin: 0.4em 0; }
.prose .note { margin-top: 22px; }
.prose .btn { margin-top: 6px; }

/* ---------- 顶部航线带 ---------- */
.route-bar {
  position: relative;
  overflow: hidden;
  background: var(--olive);
  color: var(--paper);
}
.route-bar::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background-image: repeating-linear-gradient(90deg, rgba(247, 241, 225, 0.4) 0 10px, transparent 10px 20px);
}
.route-track {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 26px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 7px var(--gut);
  font: 600 0.66rem/1.6 var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.route-stop { display: inline-flex; align-items: center; gap: 8px; }
.route-stop::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--sand);
  transform: rotate(45deg);
}
.route-stop--live::before { background: var(--orange); }
.route-stop--live { color: var(--yellow); }
.route-stop b { font-weight: 700; letter-spacing: 0.1em; }

/* ---------- 页头 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(232, 221, 198, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-2);
}
.mast-in {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  min-height: 66px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  flex: none;
}
.brand:hover { color: var(--ink); }
.brand-mark {
  position: relative;
  width: 30px;
  height: 30px;
  border: 2px solid var(--olive);
  background: var(--yellow);
}
.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: var(--olive);
}
.brand-mark::before { left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-1px); }
.brand-mark::after { top: 50%; left: 0; right: 0; height: 2px; transform: translateY(-1px); }
.brand-txt { display: flex; flex-direction: column; line-height: 1.1; }
.brand-txt b { font-size: 1.06rem; letter-spacing: 0.02em; }
.brand-en {
  font: 600 0.6rem/1.4 var(--mono);
  letter-spacing: 0.34em;
  color: var(--ink-3);
}
.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px 16px;
  margin-left: auto;
  font-size: 0.86rem;
}
.nav a {
  position: relative;
  padding: 4px 0;
  color: var(--ink-2);
  font-weight: 500;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width 0.2s ease;
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a.is-on::after { width: 100%; }
.nav a.is-on { color: var(--ink); font-weight: 700; }
.head-cta { flex: none; margin-left: 6px; }
.burger {
  display: none;
  width: 42px;
  height: 38px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--line-2);
  background: transparent;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 3.5px auto;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
body.nav-open .burger span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
body.nav-open .burger span:nth-child(2) { opacity: 0; }
body.nav-open .burger span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- 页脚 ---------- */
.foot {
  margin-top: var(--sp-5);
  background: var(--olive);
  color: rgba(247, 241, 225, 0.82);
  background-image:
    repeating-linear-gradient(0deg, rgba(232, 221, 198, 0.06) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(232, 221, 198, 0.06) 0 1px, transparent 1px 24px);
  font-size: 0.88rem;
}
.foot a { color: rgba(247, 241, 225, 0.86); }
.foot a:hover { color: var(--yellow); }
.foot-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--sp-3);
  padding: var(--sp-4) 0 var(--sp-3);
}
.foot-brand { margin: 0 0 10px; color: var(--paper); font-size: 1.2rem; font-weight: 700; }
.foot-brand span {
  display: block;
  margin-top: 4px;
  font: 600 0.62rem/1.4 var(--mono);
  letter-spacing: 0.3em;
  color: var(--yellow);
}
.foot h4 {
  margin: 0 0 12px;
  font: 700 0.68rem/1.4 var(--mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--yellow);
}
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin: 0 0 8px; }
.barcode {
  height: 26px;
  margin: 0 0 12px;
  background-image: repeating-linear-gradient(90deg,
    rgba(247, 241, 225, 0.75) 0 2px, transparent 2px 4px,
    rgba(247, 241, 225, 0.75) 4px 5px, transparent 5px 9px,
    rgba(247, 241, 225, 0.75) 9px 13px, transparent 13px 15px,
    rgba(247, 241, 225, 0.75) 15px 16px, transparent 16px 21px);
  opacity: 0.55;
}
.foot-legal {
  border-top: 1px solid rgba(247, 241, 225, 0.22);
  padding: 18px 0 26px;
  font-size: 0.8rem;
  line-height: 1.85;
  color: rgba(247, 241, 225, 0.6);
}
.foot-legal p { margin: 0 0 8px; }
.foot-legal b { color: rgba(247, 241, 225, 0.86); }
.foot-legal a { color: rgba(247, 241, 225, 0.72); }

/* ---------- 入场动画 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: calc(var(--i, 0) * 60ms);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1040px) {
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .cols { grid-template-columns: minmax(0, 1fr); gap: var(--sp-3); }
  .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .board { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .board-item:nth-child(2) { border-right: 0; }
  .board-item:nth-child(1), .board-item:nth-child(2) { border-bottom: 1px solid rgba(232, 221, 198, 0.22); }
  .burger { display: block; }
  .head-cta { display: none; }
  .nav {
    position: fixed;
    inset: 66px 0 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 14px var(--gut) 40px;
    background: var(--paper);
    border-top: 1px solid var(--line-2);
    overflow-y: auto;
    font-size: 1rem;
  }
  body.nav-open .nav { display: flex; }
  body.nav-open { overflow: hidden; }
  .nav a {
    padding: 14px 0;
    border-bottom: 1px dashed var(--line);
    font-size: 1rem;
  }
  .nav a::after { display: none; }
  .nav a.is-on { color: var(--orange); }
  .section { padding: var(--sp-4) 0; }
  .sec-head { flex-direction: column; gap: 12px; }
}
@media (max-width: 620px) {
  :root { --gut: 18px; }
  .g2, .g3, .g4 { grid-template-columns: minmax(0, 1fr); }
  .foot-top { grid-template-columns: minmax(0, 1fr); }
  .route-track { gap: 4px 14px; font-size: 0.6rem; }
  .panel { padding: 22px 18px; }
  h1 { font-size: 1.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}