/* ============================================================
   9博娱乐会馆 — 共享样式表 /assets/site.css
   丹霞档案室体系：墨蓝刊头 + 米白卷宗 + 赭红行动 + 土金刻度
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body { margin: 0; }

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

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

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

h1, h2, h3, h4, p, figure, blockquote { margin: 0; }

a { color: inherit; }

/* ---------- 2. 变量 ---------- */
:root {
  --paper: #F3EBDD;
  --paper-2: #E7D8C3;
  --navy: #14202E;
  --navy-deep: #0C1622;
  --ochre: #963B2C;
  --ochre-deep: #6F2A21;
  --gold: #C99757;
  --gold-lite: #DDBB86;
  --copper: #3E6B5E;
  --stone: #8A8176;
  --char: #1A1714;

  --hairline: rgba(26, 23, 20, 0.14);
  --hairline-soft: rgba(26, 23, 20, 0.08);
  --hairline-light: rgba(243, 235, 221, 0.18);

  --font-display: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, "Courier New", monospace;

  --wrap: 1180px;
  --gutter: clamp(18px, 4vw, 48px);
  --ease: cubic-bezier(0.22, 0.7, 0.24, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(90deg, rgba(26, 23, 20, 0.028) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(26, 23, 20, 0.028) 0 1px, transparent 1px 96px);
  color: var(--char);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.78;
  letter-spacing: 0.012em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.24;
  letter-spacing: 0.06em;
  color: var(--char);
}

strong { font-weight: 700; }

::selection {
  background: var(--ochre);
  color: var(--paper);
}

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

/* ---------- 4. 布局容器与网格 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

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

/* ---------- 5. 文字组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ochre);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--gold);
  flex: none;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(24px, 3.2vw, 36px);
  letter-spacing: 0.08em;
  line-height: 1.26;
  margin: 0 0 0.55em;
}

.lede {
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.85;
  color: rgba(26, 23, 20, 0.78);
  margin: 0 0 1.2em;
  max-width: 60ch;
}

.prose {
  max-width: 66ch;
  font-size: 16.5px;
  line-height: 1.92;
  color: rgba(26, 23, 20, 0.86);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  font-size: clamp(21px, 2.2vw, 25px);
  margin-top: 2em;
  padding-top: 0.7em;
  border-top: 1px solid var(--hairline);
}

.prose h3 {
  font-size: clamp(18px, 1.9vw, 20px);
  margin-top: 1.6em;
}

.prose ul,
.prose ol {
  padding-left: 1.25em;
  list-style: disc;
}

.prose ol { list-style: decimal; }

.prose li + li { margin-top: 0.45em; }

.prose a {
  color: var(--ochre);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.prose a:hover { color: var(--ochre-deep); }

/* ---------- 6. 标签与按钮 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding-left: 9px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--ochre-deep);
}

.tag--gold {
  color: var(--gold-lite);
  border-left-color: var(--gold);
}

.tag--copper {
  color: var(--copper);
  border-left-color: var(--copper);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--ochre);
  border-radius: 0;
  background: var(--ochre);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.2;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.btn:hover {
  background: var(--ochre-deep);
  border-color: var(--ochre-deep);
  transform: translateY(-1px);
}

.btn--line {
  background: transparent;
  color: var(--char);
  border-color: var(--hairline);
}

.btn--line:hover {
  background: var(--char);
  border-color: var(--char);
  color: var(--paper);
}

.btn--dialogue {
  background: var(--ochre);
  border-color: var(--ochre);
  color: var(--paper);
}

.btn--dialogue:hover {
  background: var(--ochre-deep);
  border-color: var(--gold);
}

.btn__dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper);
  box-shadow: 0 0 0 1px rgba(243, 235, 221, 0.45);
}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb {
  padding-block: 14px;
  border-bottom: 1px solid var(--hairline-soft);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

.breadcrumb__list li {
  display: inline-flex;
  align-items: center;
}

.breadcrumb__list li + li::before {
  content: "／";
  margin: 0 8px;
  color: var(--gold);
}

.breadcrumb a {
  color: var(--stone);
  text-decoration: none;
  transition: color 0.22s var(--ease);
}

.breadcrumb a:hover { color: var(--ochre); }

.breadcrumb [aria-current="page"] { color: var(--char); }

/* ---------- 8. 图片容器（页面阶段放占位/图片） ---------- */
.figure {
  display: block;
  margin: 0;
  background: var(--paper-2);
  border: 1px solid var(--hairline);
}

.figure__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-image:
    linear-gradient(135deg, rgba(150, 59, 44, 0.16), rgba(201, 151, 87, 0.2) 46%, rgba(20, 32, 46, 0.18)),
    repeating-linear-gradient(180deg, rgba(26, 23, 20, 0.06) 0 1px, transparent 1px 9px);
  background-color: var(--paper-2);
}

.figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.02);
}

.figure__cap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.figure__cap::before {
  content: "";
  flex: none;
  width: 14px;
  height: 1px;
  background: var(--gold);
}

.figure--wide .figure__frame { aspect-ratio: 21 / 9; }
.figure--tall .figure__frame { aspect-ratio: 3 / 4; }

/* ---------- 9. 页头 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 120;
  padding: 10px 16px;
  background: var(--ochre);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.25s var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline-color: var(--gold-lite);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--navy);
  color: var(--paper);
  border-bottom: 1px solid var(--hairline-light);
}

/* 刊头 */
.masthead {
  background: var(--navy);
  border-bottom: 1px solid var(--hairline-light);
}

.masthead__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(14px, 2.2vw, 26px);
  transition: padding-block 0.4s var(--ease);
}

.site-header[data-condensed] .masthead__inner {
  padding-block: 9px;
}

.masthead__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  justify-self: start;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(243, 235, 221, 0.6);
}

.masthead__meta-line { display: block; }

.masthead__brand {
  display: flex;
  align-items: center;
  gap: 13px;
  justify-self: center;
  min-width: 0;
  text-decoration: none;
  color: inherit;
}

.masthead__seal {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  background: var(--ochre);
  border: 1px solid rgba(243, 235, 221, 0.32);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1;
  transition: width 0.4s var(--ease), height 0.4s var(--ease), font-size 0.4s var(--ease);
}

.site-header[data-condensed] .masthead__seal {
  width: 34px;
  height: 34px;
  font-size: 17px;
}

.masthead__lockup {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.masthead__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.08;
  letter-spacing: 0.17em;
  white-space: nowrap;
  transition: font-size 0.4s var(--ease);
}

.site-header[data-condensed] .masthead__name { font-size: 19px; }

.masthead__kicker {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-lite);
  white-space: nowrap;
}

.masthead__aside {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-self: end;
  min-width: 0;
}

.masthead__hours {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: rgba(243, 235, 221, 0.58);
  white-space: nowrap;
}

/* 导航带 */
.site-nav {
  background: var(--navy-deep);
  border-bottom: 1px solid var(--hairline-light);
}

.site-nav__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.nav-toggle { display: none; }

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
}

.site-nav__item { position: relative; }

.site-nav__link {
  position: relative;
  display: block;
  padding: 14px 17px;
  color: rgba(243, 235, 221, 0.78);
  font-size: 14px;
  letter-spacing: 0.13em;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 17px;
  right: 17px;
  bottom: 9px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s var(--ease);
}

.site-nav__link:hover { color: var(--paper); }
.site-nav__link:hover::after { transform: scaleX(1); }

.site-nav__link[aria-current="page"] { color: var(--gold-lite); }
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--gold);
}

.site-nav__item--cta {
  display: flex;
  align-items: center;
  margin-left: 10px;
}

.site-nav__cta {
  display: inline-block;
  padding: 7px 16px;
  background: var(--ochre);
  border: 1px solid var(--ochre);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.site-nav__cta:hover {
  background: var(--ochre-deep);
  border-color: var(--gold);
}

/* ---------- 10. 页脚 ---------- */
.site-footer {
  background: var(--navy);
  color: rgba(243, 235, 221, 0.8);
  border-top: 3px solid var(--ochre);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(34px, 5vw, 62px) var(--gutter) 0;
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(0, 1.9fr);
  gap: clamp(26px, 4vw, 56px);
  padding-bottom: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--hairline-light);
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.site-footer__seal {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--ochre);
  border: 1px solid rgba(243, 235, 221, 0.3);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1;
}

.site-footer__name {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--paper);
}

.site-footer__statement {
  max-width: 30ch;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(243, 235, 221, 0.66);
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 40px);
}

.site-footer__col-title {
  margin: 0 0 13px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-lite);
}

.site-footer__list {
  display: grid;
  gap: 9px;
}

.site-footer__list a {
  color: rgba(243, 235, 221, 0.8);
  font-size: 14.5px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.22s var(--ease), padding-left 0.22s var(--ease);
}

.site-footer__list a:hover {
  color: var(--gold-lite);
  padding-left: 5px;
}

.site-footer__contact {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 40px);
  padding-block: clamp(22px, 3.4vw, 34px);
  border-bottom: 1px solid var(--hairline-light);
}

.site-footer__contact-item { min-width: 0; }

.site-footer__label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
}

.site-footer__value {
  color: var(--paper);
  font-size: 15px;
  line-height: 1.6;
  word-break: break-word;
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(243, 235, 221, 0.5);
}

.site-footer__copy,
.site-footer__legal { margin: 0; }

.site-footer__legal { color: rgba(243, 235, 221, 0.62); }

.site-footer :focus-visible { outline-color: var(--gold-lite); }

/* ---------- 11. JS 注入组件 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 90;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--ochre), var(--gold) 62%, var(--gold-lite));
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.scroll-progress[data-visible] { opacity: 1; }

.to-top {
  position: fixed;
  right: clamp(14px, 2vw, 26px);
  bottom: clamp(14px, 2vw, 26px);
  z-index: 70;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  background: var(--ochre);
  border: 1px solid var(--ochre-deep);
  border-radius: 0;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    visibility 0.3s var(--ease), background-color 0.25s var(--ease);
}

.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover { background: var(--ochre-deep); }

/* 渐显（页面阶段给块加 .reveal） */
.js-reveal .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.62s var(--ease), transform 0.62s var(--ease);
}

.js-reveal .reveal[data-shown] {
  opacity: 1;
  transform: none;
}

/* ---------- 12. 响应式 ---------- */
@media (max-width: 1080px) {
  .masthead__meta { display: none; }
  .masthead__hours { display: none; }
}

@media (max-width: 899px) {
  .masthead__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    padding-block: 12px;
  }

  .masthead__brand {
    justify-self: start;
    gap: 10px;
  }

  .masthead__seal {
    width: 34px;
    height: 34px;
    font-size: 17px;
  }

  .masthead__name {
    font-size: 18px;
    letter-spacing: 0.1em;
  }

  .masthead__kicker {
    font-size: 8.5px;
    letter-spacing: 0.2em;
  }

  .masthead__aside { justify-self: end; }

  .btn--dialogue {
    padding: 8px 13px;
    font-size: 10.5px;
    letter-spacing: 0.12em;
  }

  .site-nav__inner { padding-inline: 0; }

  .nav-toggle {
    display: flex;
    align-items: center;
    gap: 11px;
    width: 100%;
    padding: 13px var(--gutter);
    background: var(--navy-deep);
    border: 0;
    border-top: 1px solid var(--hairline-light);
    color: var(--paper);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    text-align: left;
    cursor: pointer;
  }

  .nav-toggle__glyph {
    position: relative;
    flex: none;
    width: 18px;
    height: 11px;
  }

  .nav-toggle__glyph::before,
  .nav-toggle__glyph::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gold);
    transition: transform 0.3s var(--ease), top 0.3s var(--ease);
  }

  .nav-toggle__glyph::before { top: 2px; }
  .nav-toggle__glyph::after { top: 8px; }

  .nav-toggle[aria-expanded="true"] .nav-toggle__glyph::before {
    top: 5px;
    transform: rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__glyph::after {
    top: 5px;
    transform: rotate(-45deg);
  }

  .site-nav__list {
    display: none;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: flex-start;
    border-top: 1px solid var(--hairline-light);
    padding-bottom: 12px;
  }

  .site-nav[data-open] .site-nav__list { display: flex; }

  .site-nav__item {
    border-bottom: 1px solid rgba(243, 235, 221, 0.08);
  }

  .site-nav__link {
    padding: 14px var(--gutter);
    font-size: 15px;
    letter-spacing: 0.1em;
  }

  .site-nav__link::after { display: none; }

  .site-nav__link[aria-current="page"] {
    background: rgba(201, 151, 87, 0.09);
    box-shadow: inset 3px 0 0 var(--gold);
    color: var(--gold-lite);
  }

  .site-nav__item--cta {
    display: block;
    margin: 14px var(--gutter) 2px;
    border-bottom: 0;
  }

  .site-nav__cta {
    display: block;
    padding: 12px;
    text-align: center;
    font-size: 11.5px;
  }

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

  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__contact {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }

  .masthead__kicker { display: none; }

  .site-footer__cols { grid-template-columns: minmax(0, 1fr); }

  .site-footer__base {
    flex-direction: column;
    align-items: flex-start;
  }

  .to-top {
    width: 42px;
    height: 42px;
  }
}

/* ---------- 13. 动效偏好 ---------- */
@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;
  }

  .js-reveal .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}