/* ==========================================================================
   澳门中心 · 澳门CN  /  /assets/site.css
   共享外壳：reset · 变量 · 中文排版 · 悬浮胶囊头部 · 索引式页脚 · 通用组件
   ========================================================================== */

/* 1. 设计变量 ------------------------------------------------------------- */
:root {
  --tile-900: #0F3B52;
  --tile-600: #1B6C8C;
  --tile-300: #9CC4D4;
  --mint-500: #2F9E83;
  --mint-150: #CDE9DF;
  --amber-500: #E07A24;
  --amber-150: #FBE3C6;
  --paper-100: #FCF8F0;
  --paper-200: #F1E9DA;
  --ink-900: #16222B;
  --ink-600: #41525C;
  --ink-400: #54656F;
  --blue-050: #DCEAF1;

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --shell: 1180px;
  --header-h: 92px;
  --dur: 200ms;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --hairline: 1px solid var(--tile-300);
  --radius-card: 14px;
  --radius-pill: 999px;
  --shadow-soft: 0 2px 3px rgba(15, 59, 82, .06), 0 10px 28px rgba(15, 59, 82, .07);
  --shadow-lift: 0 3px 6px rgba(15, 59, 82, .07), 0 16px 36px rgba(15, 59, 82, .09);
}

/* 2. Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  padding-top: var(--header-h);
  background: var(--paper-100);
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
main { display: block; }
img, svg, video { max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }
[hidden] { display: none !important; }
::selection { background: var(--amber-150); color: var(--tile-900); }

/* 3. 中文排版 ------------------------------------------------------------- */
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.32;
  color: var(--tile-900);
  letter-spacing: .01em;
}
h1 { font-size: clamp(30px, 5vw, 50px); }
h2 { font-size: clamp(22px, 2.8vw, 28px); }
h3 { font-size: clamp(18px, 2.2vw, 22px); }
h4 { font-size: 18px; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
strong { font-weight: 600; color: var(--tile-900); }
a { color: var(--tile-600); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--amber-500); }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: 3px;
  border-radius: 6px;
}
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
  margin-inline: .25em;
}
.time-mark {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  font-size: clamp(44px, 9vw, 88px);
  line-height: .95;
  letter-spacing: -.02em;
  color: var(--amber-500);
}
[id]:target { scroll-margin-top: calc(var(--header-h) + 20px); }

/* 4. 布局容器 ------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}
.grid { display: grid; gap: clamp(16px, 2.5vw, 28px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 260px) minmax(0, 1fr); gap: clamp(20px, 4vw, 48px); align-items: start; }
.split--rev { grid-template-columns: minmax(0, 1fr) minmax(0, 240px); }

/* 5. 悬浮胶囊头部 --------------------------------------------------------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 90;
  padding: 10px 18px;
  background: var(--tile-900);
  color: var(--paper-100);
  font-size: 14px;
  text-decoration: none;
  border-radius: 0 0 12px 12px;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 0; color: var(--paper-100); }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  padding-block: 14px;
  background: transparent;
  transition: background var(--dur) var(--ease), padding var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-header[data-pinned] {
  background: var(--paper-100);
  padding-block: 8px;
  box-shadow: inset 0 -1px 0 var(--tile-300), 0 8px 24px rgba(15, 59, 82, .05);
}
.site-header__progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--amber-500);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}
.capsule-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}
.capsule {
  position: relative;
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: clamp(10px, 2vw, 20px);
  padding: 8px 10px 8px 16px;
  background: var(--paper-100);
  border: var(--hairline);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-soft);
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header[data-pinned] .capsule { box-shadow: 0 1px 2px rgba(15, 59, 82, .05); }
.capsule__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--tile-900);
}
.capsule__brand:hover { color: var(--tile-900); }
.capsule__mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--tile-600);
  color: var(--paper-100);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1;
}
.capsule__brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.capsule__brand-name { font-family: var(--font-serif); font-size: 17px; font-weight: 600; letter-spacing: .02em; }
.capsule__brand-line { font-family: var(--font-mono); font-size: 11px; color: var(--mint-500); letter-spacing: .02em; }

.site-nav { display: block; margin-inline-start: auto; }
.site-nav__list { display: flex; align-items: center; gap: 2px; list-style: none; }
.site-nav__item { list-style: none; }
.site-nav__link {
  display: block;
  padding: 8px 13px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  line-height: 1.4;
  color: var(--tile-900);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-nav__link:hover { background: var(--mint-150); color: var(--tile-900); }
.site-nav__link--quick {
  background: var(--amber-150);
  color: #8A4A11;
  box-shadow: inset 0 0 0 1px rgba(224, 122, 36, .35);
}
.site-nav__link--quick:hover { background: var(--amber-500); color: #FFFFFF; }
.site-nav__link[aria-current="page"] {
  color: var(--tile-900);
  background: var(--mint-150);
  box-shadow: inset 0 0 0 1px var(--tile-300);
  font-weight: 600;
}
.site-nav__link--quick[aria-current="page"] { background: var(--mint-150); color: var(--tile-900); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-inline-start: auto;
  padding: 7px 14px;
  background: var(--paper-200);
  border: var(--hairline);
  border-radius: var(--radius-pill);
  color: var(--tile-900);
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-toggle:hover { background: var(--mint-150); border-color: var(--mint-500); }
.nav-toggle__bars { position: relative; display: block; width: 16px; height: 12px; }
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 1.5px;
  background: var(--tile-600);
  transition: transform var(--dur) var(--ease);
}
.nav-toggle__bars::before { top: 2px; }
.nav-toggle__bars::after { bottom: 2px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(3.25px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-3.25px) rotate(-45deg); }

/* 6. 索引式页脚 ----------------------------------------------------------- */
.site-footer {
  margin-top: clamp(56px, 8vw, 100px);
  background: var(--paper-200);
  border-top: var(--hairline);
  color: var(--ink-600);
}
.footer-tile {
  height: 8px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--tile-600) 0 10px,
    var(--paper-200) 10px 20px,
    var(--mint-500) 20px 30px,
    var(--paper-200) 30px 40px
  );
  opacity: .38;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(20px, 3vw, 40px);
  padding-block: clamp(34px, 5vw, 56px) 22px;
}
.footer-col { min-width: 0; }
.footer-col__title {
  margin-bottom: 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--mint-500);
}
.footer-brand__name {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--tile-900);
}
.footer-brand__line { margin: 0; max-width: 34ch; font-size: 15px; color: var(--ink-600); }
.footer-brand__cadence {
  display: inline-flex;
  align-items: center;
  margin-top: 14px;
  padding: 5px 14px;
  border: var(--hairline);
  border-radius: var(--radius-pill);
  background: var(--paper-100);
  font-size: 13px;
  color: var(--tile-600);
}
.footer-brand__sep { color: var(--tile-300); margin-inline: 2px; font-family: var(--font-mono); }
.footer-list { display: grid; gap: 9px; list-style: none; }
.footer-list__link {
  font-size: 15px;
  color: var(--tile-900);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-list__link:hover { color: var(--amber-500); border-bottom-color: var(--amber-500); }
.footer-note { margin: 16px 0 0; font-size: 13px; color: var(--ink-400); }
.footer-contact {
  display: grid;
  gap: 6px;
  padding-block: 18px;
  border-top: var(--hairline);
  font-size: 15px;
  color: var(--ink-600);
}
.footer-contact__row { margin: 0; overflow-wrap: anywhere; }
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  padding-block: 16px 26px;
  border-top: var(--hairline);
  font-size: 13px;
  color: var(--ink-400);
}
.footer-meta__copy, .footer-legal { margin: 0; }

/* 7. 按钮 ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.btn--primary { background: var(--amber-500); color: #FFFFFF; }
.btn--primary:hover { background: #C8681A; color: #FFFFFF; transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--tile-600); border-color: var(--tile-300); }
.btn--ghost:hover { background: var(--mint-150); border-color: var(--mint-500); color: var(--tile-900); }

/* 8. 面包屑 --------------------------------------------------------------- */
.breadcrumb { margin: 0 0 16px; font-size: 13px; color: var(--ink-400); }
.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; list-style: none; }
.breadcrumb__list li { display: flex; align-items: center; gap: 6px; }
.breadcrumb__list li + li::before { content: "/"; font-family: var(--font-mono); color: var(--tile-300); }
.breadcrumb__link { color: var(--tile-600); text-decoration: none; }
.breadcrumb__link:hover { color: var(--amber-500); text-decoration: underline; }
.breadcrumb__current { color: var(--ink-900); }

/* 9. 页首声明与编号章节 --------------------------------------------------- */
.page-head { padding-block: clamp(28px, 5vw, 54px) clamp(14px, 3vw, 26px); }
.page-head__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--mint-500);
}
.page-head__title { margin-bottom: 12px; }
.page-head__lede { max-width: 60ch; margin: 0; font-size: 18px; color: var(--ink-600); }

.section { padding-block: clamp(28px, 4.5vw, 54px); }
.section__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 24px);
  padding-bottom: 12px;
  margin-bottom: 22px;
  border-bottom: var(--hairline);
}
.section__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1;
  font-weight: 500;
  color: var(--amber-500);
}
.section__title { margin: 0; }
.section__lede { max-width: 62ch; margin: 0; color: var(--ink-600); }

/* 10. 索引卡 -------------------------------------------------------------- */
.index-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(232px, 1fr)); gap: clamp(14px, 2vw, 20px); }
.index-card {
  display: block;
  padding: 18px 18px 20px;
  background: var(--paper-100);
  border: var(--hairline);
  border-radius: var(--radius-card);
  color: inherit;
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.index-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); border-color: var(--tile-600); color: inherit; }
.index-card__num { font-family: var(--font-mono); font-size: 13px; letter-spacing: .12em; color: var(--mint-500); }
.index-card__title { margin: 8px 0 6px; font-family: var(--font-serif); font-size: 19px; font-weight: 600; color: var(--tile-900); }
.index-card__desc { margin: 0; font-size: 15px; color: var(--ink-600); }

/* 11. 技能树式路径 / 时间轴 ---------------------------------------------- */
.path { position: relative; display: grid; gap: 22px; padding-left: 34px; }
.path::before { content: ""; position: absolute; left: 11px; top: 10px; bottom: 10px; width: 1px; background: var(--tile-300); }
.path__step { position: relative; }
.path__step::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 6px;
  width: 23px;
  height: 23px;
  border: 1px solid var(--tile-300);
  border-radius: 50%;
  background: var(--paper-100);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.path__step[data-active]::before {
  background: var(--amber-150);
  border-color: var(--amber-500);
  box-shadow: 0 0 0 4px rgba(224, 122, 36, .12);
}
.path__num { font-family: var(--font-mono); font-size: 13px; letter-spacing: .1em; color: var(--amber-500); }
.path__title { margin: 2px 0 4px; font-family: var(--font-serif); font-size: 18px; font-weight: 600; color: var(--tile-900); }
.path__desc { margin: 0; font-size: 15px; color: var(--ink-600); }

/* 12. 标签页 / 分段控件 --------------------------------------------------- */
.tabs { margin-block: 22px; }
.tabs__list { display: flex; flex-wrap: wrap; gap: 2px; border-bottom: var(--hairline); }
.tabs__tab {
  position: relative;
  padding: 10px 14px;
  background: transparent;
  border: 0;
  border-radius: 10px 10px 0 0;
  font-size: 15px;
  color: var(--ink-600);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.tabs__tab::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: -1px;
  height: 2px;
  background: var(--amber-500);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.tabs__tab:hover { background: var(--mint-150); }
.tabs__tab[aria-selected="true"] { color: var(--tile-900); font-weight: 600; }
.tabs__tab[aria-selected="true"]::after { transform: scaleX(1); }
.tabs__panel { padding-top: 18px; }

/* 13. 标签 / 卡片 / 提示 / 表格 ------------------------------------------ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--mint-150);
  color: #1B6C5A;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}
.tag--amber { background: var(--amber-150); color: #8A4A11; }
.tag--blue { background: var(--blue-050); color: var(--tile-900); }

.card { padding: 20px; background: var(--paper-100); border: var(--hairline); border-radius: var(--radius-card); }
.card--mint { background: var(--mint-150); border-color: transparent; }
.card--tint { background: var(--paper-200); }

.note {
  padding: 14px 18px;
  border-left: 3px solid var(--amber-500);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background: var(--amber-150);
  font-size: 15px;
  color: #5A3A1A;
}
.note p { margin: 0; }

.data-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--tile-300); }
.data-table th { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; color: var(--tile-600); font-weight: 500; }
.data-table tbody tr:nth-child(even) { background: var(--mint-150); }

/* 14. 图片容器 ------------------------------------------------------------ */
.figure { margin: 0 0 22px; }
.figure__frame {
  position: relative;
  overflow: hidden;
  border: var(--hairline);
  border-radius: var(--radius-card);
  background: var(--paper-200);
}
.figure__frame img { display: block; width: 100%; height: 100%; object-fit: cover; }
.figure__frame--16x9 { aspect-ratio: 16 / 9; }
.figure__frame--4x3 { aspect-ratio: 4 / 3; }
.figure__frame--1x1 { aspect-ratio: 1 / 1; }
.figure__frame--21x9 { aspect-ratio: 21 / 9; }
.figure__frame--placeholder {
  background-image: repeating-linear-gradient(
    45deg,
    rgba(27, 108, 140, .09) 0 12px,
    rgba(252, 248, 240, 0) 12px 24px
  );
}
.figure__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-400);
}

/* 15. 正文与工具类 -------------------------------------------------------- */
.prose { max-width: 68ch; }
.prose h2 { margin: 1.6em 0 .6em; }
.prose h3 { margin: 1.4em 0 .5em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.4em; }
.prose li { margin-bottom: .4em; }
.tile-band {
  height: 6px;
  border-radius: var(--radius-pill);
  background-image: repeating-linear-gradient(
    90deg,
    var(--tile-600) 0 8px,
    var(--paper-100) 8px 16px,
    var(--mint-500) 16px 24px,
    var(--paper-100) 24px 32px
  );
  opacity: .45;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* 16. 动效（渐进增强） ---------------------------------------------------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 260ms var(--ease), transform 260ms var(--ease);
}
.js [data-reveal][data-revealed] { opacity: 1; transform: none; }

/* 17. 响应式 -------------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --header-h: 84px; }
  .capsule {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 24px;
  }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none;
    order: 3;
    flex-basis: 100%;
    margin: 4px 0 2px;
    margin-inline-start: 0;
  }
  .site-nav[data-open] { display: block; }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    max-height: min(62vh, 420px);
    overflow-y: auto;
    padding-top: 8px;
    border-top: var(--hairline);
  }
  .site-nav__link { padding: 11px 14px; border-radius: 12px; font-size: 16px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col--brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .grid--2, .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .split, .split--rev { grid-template-columns: minmax(0, 1fr); }
  .section__head { flex-wrap: wrap; align-items: flex-end; }
}

@media (max-width: 640px) {
  :root { --header-h: 76px; }
  body { font-size: 16px; }
  .capsule__brand-line { display: none; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .footer-col--brand { grid-column: auto; }
  .footer-contact, .footer-meta { font-size: 14px; }
  .footer-meta { flex-direction: column; align-items: flex-start; }
  .page-head__lede { font-size: 17px; }
}

/* 18. 焦点与减弱动效 ------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .site-header__progress { transition: none; }
}