/* =========================================================
   金年会看台 · 共享样式 /assets/site.css
   高原夜场看台：夜空靛底 + 等宽记分牌 + 宋体场刊
   ========================================================= */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dd, fieldset { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; border-spacing: 0; }
hr { border: 0; border-top: 1px solid rgba(166, 178, 198, .2); margin: 0; }

/* ---------- 2. 设计令牌 ---------- */
:root {
  --night: #1B2A4A;
  --deep: #0E1526;
  --stand: #2A3550;
  --red: #C0392B;
  --butter: #F1C40F;
  --teal: #3E7C8C;
  --green: #4E7A54;
  --orange: #D98032;
  --white: #EDE6D6;
  --mist: #A6B2C6;

  --line: rgba(166, 178, 198, .20);
  --line-strong: rgba(166, 178, 198, .38);
  --veil: rgba(14, 21, 38, .88);
  --veil-soft: rgba(27, 42, 74, .58);

  --font-display: "DIN Condensed", "Oswald", "Arial Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: ui-monospace, "SFMono-Regular", "IBM Plex Mono", "Roboto Mono", Menlo, Consolas, "Courier New", monospace;
  --font-body: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, SimSun, serif;
  --font-index: ui-monospace, "SFMono-Regular", "IBM Plex Mono", Menlo, Consolas, "Courier New", monospace;

  --wrap: 1280px;
  --pad: clamp(18px, 4vw, 56px);
  --gap: clamp(16px, 2.4vw, 32px);
  --band: clamp(52px, 7vw, 104px);
  --header-h: 0px;
}

/* ---------- 3. 基础 ---------- */
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
}
body {
  min-height: 100vh;
  background-color: var(--night);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(166, 178, 198, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(166, 178, 198, .055) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}
[id] { scroll-margin-top: 132px; }

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

::selection { background: var(--butter); color: var(--deep); }

/* ---------- 4. 布局骨架 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

.section { padding-block: var(--band); }
.band { padding-block: var(--band); }
.band--deep { background: var(--deep); }
.band--stand {
  background:
    linear-gradient(180deg, rgba(42, 53, 80, .62) 0%, rgba(27, 42, 74, .18) 100%);
  border-block: 1px solid var(--line);
}

/* ---------- 5. 文字声部 ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .02em;
  line-height: .98;
  color: var(--white);
}
.display--xl { font-size: clamp(38px, 7vw, 96px); }
.display--l { font-size: clamp(30px, 4.6vw, 64px); }
.display--m { font-size: clamp(22px, 3vw, 40px); letter-spacing: .04em; }

.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1;
  white-space: nowrap;
}
.index {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}
.lede {
  max-width: 34em;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.95;
  color: var(--white);
}
.prose {
  max-width: 38em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--white);
}
.prose p + p { margin-top: 1.05em; }
.prose strong { color: var(--butter); font-weight: 600; }

.kicker {
  display: inline-flex;
  align-items: center;
  gap: .7em;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--butter);
}
.kicker::before { content: ""; width: 26px; height: 1px; background: var(--red); }
.section__head { display: grid; gap: .85rem; margin-bottom: clamp(24px, 3vw, 44px); }
.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(26px, 3.6vw, 54px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--white);
}
.section__intro { max-width: 38em; font-size: 15px; line-height: 1.9; color: var(--mist); }

/* ---------- 6. 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6em;
  padding: .72em 1.35em;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--white);
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: .16em;
  line-height: 1.2;
  white-space: nowrap;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover { border-color: var(--orange); color: var(--butter); }
.btn--primary { background: var(--butter); border-color: var(--butter); color: var(--deep); font-weight: 700; }
.btn--primary:hover { background: var(--orange); border-color: var(--orange); color: var(--deep); }
.btn--ghost { border-color: var(--line); color: var(--mist); }
.btn--ghost:hover { color: var(--white); border-color: var(--teal); }
.btn--line { border-color: var(--line); color: var(--mist); }
.btn--line:hover { color: var(--butter); border-color: var(--butter); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: .45em .9em;
  border: 1px solid var(--line);
  background: rgba(42, 53, 80, .5);
  color: var(--mist);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .14em;
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}
.chip:hover { color: var(--white); border-color: var(--teal); }
.chip[aria-pressed="true"] {
  border-color: var(--butter);
  color: var(--butter);
  background: rgba(241, 196, 15, .1);
}

/* ---------- 7. 通用组件 ---------- */
.card {
  padding: clamp(16px, 2vw, 26px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(42, 53, 80, .62) 0%, rgba(27, 42, 74, .62) 100%);
  box-shadow: 0 1px 0 rgba(237, 230, 214, .04), 0 18px 40px -32px rgba(0, 0, 0, .9);
}
.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: .7rem;
  margin-bottom: .9rem;
  border-bottom: 1px solid var(--line);
}
.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 26px);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--white);
}
.card__meta {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
  white-space: nowrap;
}
.card__body { font-size: 15px; line-height: 1.9; color: var(--mist); }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .4em;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}
.crumbs li { display: inline-flex; align-items: center; gap: .4em; }
.crumbs li::after { content: "/"; color: rgba(166, 178, 198, .45); }
.crumbs li:last-child::after { content: ""; }
.crumbs a:hover { color: var(--butter); }
.crumbs [aria-current="page"] { color: var(--white); }

.databar {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem 1.6rem;
  padding-block: .8rem;
  border-block: 1px solid var(--line);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}
.databar__key { color: var(--teal); }
.databar__val { color: var(--white); }

.dtable {
  width: 100%;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: .06em;
}
.dtable th, .dtable td {
  padding: .7rem .8rem;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}
.dtable thead th {
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--mist);
  border-bottom-color: var(--line-strong);
}
.dtable tbody tr:nth-child(even) { background: rgba(42, 53, 80, .42); }
.dtable tbody tr:hover { background: rgba(62, 124, 140, .16); }
.dtable .num { color: var(--white); }

.figure { margin: 0; }
.figure__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  background-color: var(--stand);
  background-image:
    linear-gradient(135deg, rgba(62, 124, 140, .22) 0%, rgba(27, 42, 74, .72) 60%),
    repeating-linear-gradient(45deg, rgba(166, 178, 198, .07) 0 2px, transparent 2px 7px);
}
.figure__media img,
.figure__media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.78) contrast(1.06);
}
.figure__cap {
  margin-top: .6rem;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .12em;
  line-height: 1.7;
  color: var(--mist);
}
.figure--tall .figure__media { aspect-ratio: 3 / 4; }
.figure--wide .figure__media { aspect-ratio: 21 / 9; }

/* ---------- 8. 页头 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 200;
  padding: .7em 1.1em;
  background: var(--butter);
  color: var(--deep);
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: .14em;
  transition: top .18s ease;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--veil);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.strip {
  overflow: hidden;
  max-height: 44px;
  background: var(--deep);
  border-bottom: 1px solid var(--line);
  transition: max-height .24s ease, opacity .2s ease;
}
.strip__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .4rem 1rem;
  min-height: 34px;
  padding-block: .3rem;
}
.strip__label {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--butter);
  border: 1px solid rgba(241, 196, 15, .4);
  padding: 1px 7px;
}
.strip__text {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding-block: clamp(10px, 1.6vw, 20px);
  transition: padding .24s ease;
}
.masthead__side {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.masthead__side--end { justify-content: flex-end; }
.masthead__meta { white-space: nowrap; }

.brand { display: block; text-align: center; }
.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 42px);
  line-height: 1;
  letter-spacing: .14em;
  color: var(--white);
  transition: font-size .24s ease;
}
.brand__name::after {
  content: "";
  display: block;
  width: min(190px, 62%);
  height: 2px;
  margin: 10px auto 0;
  background: linear-gradient(90deg,
    transparent 0 6%,
    var(--line-strong) 6% 30%,
    var(--red) 30% 62%,
    var(--butter) 62% 72%,
    var(--line-strong) 72% 94%,
    transparent 94% 100%);
  transition: margin .24s ease, height .24s ease;
}
.brand__tag {
  display: block;
  overflow: hidden;
  max-height: 26px;
  margin-top: 8px;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mist);
  transition: max-height .24s ease, opacity .2s ease, margin .24s ease;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: .55em;
  padding: .55em .85em;
  border: 1px solid var(--line-strong);
  color: var(--white);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .16em;
}
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 3px; width: 15px; }
.nav-toggle__bar { display: block; width: 100%; height: 1px; background: var(--butter); transition: transform .2s ease; }
.nav-toggle__label { white-space: nowrap; }
.nav-toggle[data-open] { border-color: var(--butter); color: var(--butter); }
.nav-toggle[data-open] .nav-toggle__bar:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[data-open] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[data-open] .nav-toggle__bar:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }

.site-nav {
  border-top: 1px solid var(--line);
  background: rgba(27, 42, 74, .5);
}
.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(10px, 2vw, 34px);
  padding-inline: var(--pad);
}
.site-nav__list a {
  display: inline-block;
  padding: 12px 2px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
  transition: color .18s ease, border-color .18s ease, padding .24s ease;
}
.site-nav__list a:hover { color: var(--white); }
.site-nav__list a[aria-current="page"] {
  color: var(--butter);
  border-bottom-color: var(--red);
}

/* 收缩态：滚动到第二屏后 */
.site-header.is-condensed .strip { max-height: 0; opacity: 0; border-bottom-color: transparent; }
.site-header.is-condensed .masthead { padding-block: 8px; }
.site-header.is-condensed .brand__name { font-size: clamp(19px, 2.1vw, 28px); }
.site-header.is-condensed .brand__name::after { height: 1px; margin-top: 6px; }
.site-header.is-condensed .brand__tag { max-height: 0; opacity: 0; margin-top: 0; }
.site-header.is-condensed .site-nav__list a { padding-block: 8px; }

/* ---------- 9. 页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 2;
  padding-top: clamp(48px, 6vw, 88px);
  background: var(--deep);
  border-top: 1px solid var(--line);
  color: var(--mist);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--red) 0 12%,
    var(--butter) 12% 22%,
    var(--teal) 22% 32%,
    var(--green) 32% 40%,
    var(--orange) 40% 47%,
    transparent 47% 100%);
}
.footer__inner {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) minmax(0, 1.7fr) minmax(240px, 1.15fr);
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(36px, 5vw, 64px);
}
.footer__mark {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: .14em;
  color: var(--white);
}
.footer__mark:hover { color: var(--butter); }
.footer__tagline { margin-top: .6rem; }
.footer__summary {
  max-width: 26em;
  margin-top: 1rem;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 34px);
}
.footer__col-title {
  margin-bottom: .9rem;
  font-family: var(--font-index);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--butter);
}
.footer__list li + li { margin-top: .45rem; }
.footer__list a {
  display: inline-block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.footer__list a:hover { color: var(--white); border-bottom-color: var(--teal); }
.footer__contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem .7rem;
  margin-bottom: .45rem;
  font-size: 13px;
  line-height: 1.75;
}
.footer__label {
  flex: 0 0 auto;
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--teal);
  padding-top: .15em;
}
.footer__value { color: var(--white); word-break: break-word; }
.footer__note {
  max-width: 30em;
  margin: 1rem 0 1.2rem;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist);
}
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.6rem;
  padding-block: 1.1rem 1.4rem;
  border-top: 1px solid var(--line);
}
.footer__legal-item {
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
}

/* ---------- 10. 固定层：进度条 / 返回顶部 ---------- */
.side-progress {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  z-index: 100;
  background: rgba(166, 178, 198, .1);
  pointer-events: none;
}
.side-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--butter) 0%, var(--red) 100%);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .12s linear;
}

.to-top {
  position: fixed;
  right: clamp(12px, 2vw, 26px);
  bottom: clamp(12px, 2vw, 26px);
  z-index: 110;
  display: inline-flex;
  align-items: center;
  gap: .55em;
  padding: .7em 1em;
  background: var(--veil);
  border: 1px solid var(--line-strong);
  color: var(--mist);
  font-family: var(--font-index);
  font-size: 11px;
  letter-spacing: .16em;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, color .18s ease, border-color .18s ease, visibility .2s;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { color: var(--butter); border-color: var(--butter); }
.to-top__arrow { font-family: var(--font-num); font-size: 13px; line-height: 1; }

/* ---------- 11. 进场节奏 ---------- */
.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .22s ease, transform .22s ease;
}
.has-js [data-reveal].is-revealed { opacity: 1; transform: none; }

/* ---------- 12. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer__inner { grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); }
  .footer__contact { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  html { scroll-padding-top: 112px; }
  [id] { scroll-margin-top: 112px; }
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .span-6, .span-8 { grid-column: span 6; }
  .masthead__meta { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; }
  .site-nav[data-open] { display: block; }
  .site-nav__list {
    flex-direction: column;
    gap: 0;
    padding: 6px var(--pad) 12px;
  }
  .site-nav__list li + li { border-top: 1px solid var(--line); }
  .site-nav__list a {
    display: block;
    padding: 14px 0;
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding-left: 12px;
    font-size: 13px;
  }
  .site-nav__list a[aria-current="page"] {
    border-bottom-color: transparent;
    border-left-color: var(--red);
    background: rgba(241, 196, 15, .06);
  }
  .footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__inner { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 620px) {
  body { font-size: 15px; }
  .grid-12 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span-6, .span-8, .span-12 { grid-column: span 2; }
  .masthead__cta { display: none; }
  .brand__name { letter-spacing: .1em; }
  .brand__name::after { margin-top: 7px; }
  .footer__cols { grid-template-columns: minmax(0, 1fr); }
  .to-top__label { display: none; }
  .to-top { padding: .7em .8em; }
  .card__head { flex-wrap: wrap; }
  .card__meta { white-space: normal; }
  .dtable th, .dtable td { padding: .6rem .55rem; }
}

/* ---------- 13. 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .has-js [data-reveal] { opacity: 1; transform: none; }
  .side-progress__bar { transition: none; }
}