/* ==========================================================================
   顺发体育看台 · /assets/site.css
   共享外壳：变量 / reset / 中文排版 / 页头 / 页脚 / 通用组件
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ink: #051A12;
  --stand: #0B2A1E;
  --turf: #154631;
  --lime: #B8FF3F;
  --orange: #FF7A1A;
  --warm: #F7F4E8;
  --mist: #A8C3B4;
  --line: #2F5B45;
  --lemon: #E6FFB8;
  --char: #020806;

  --font-display: "Barlow Condensed", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --shell: 1240px;
  --gutter: clamp(18px, 4vw, 48px);
  --cut: 14px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100%;
  background: var(--ink);
  color: var(--warm);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { margin: 0; padding: 0; border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
table { border-collapse: collapse; width: 100%; }

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

::selection { background: var(--lime); color: #04150E; }

/* ---------- 3. 布局与排版基础 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 5.4vw, 64px);
  line-height: 1.05;
  letter-spacing: .02em;
  color: var(--warm);
  text-wrap: balance;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist);
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 22px;
  height: 1px;
  background: var(--lime);
}

.prose {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--warm);
}
.prose p { max-width: 44ch; margin-bottom: 1em; }
.prose h2, .prose h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.15;
  margin: 1.7em 0 .55em;
}
.prose h2 { font-size: clamp(24px, 3vw, 32px); }
.prose h3 { font-size: clamp(19px, 2.2vw, 24px); }
.prose ul { display: grid; gap: .45em; padding-left: 1.1em; }
.prose li { position: relative; max-width: 44ch; }
.prose li::before {
  content: "";
  position: absolute;
  left: -1.1em;
  top: .78em;
  width: 8px;
  height: 1px;
  background: var(--lime);
}
.prose a {
  color: var(--lime);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.hairline {
  height: 1px;
  border: 0;
  margin: clamp(28px, 4vw, 52px) 0;
  background: linear-gradient(90deg, var(--line) 0%, rgba(47, 91, 69, 0) 100%);
}

.band {
  background: var(--stand);
  border-block: 1px solid var(--line);
  padding-block: clamp(32px, 5vw, 64px);
}
.band--turf { background: var(--turf); }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); }

.panel-cut {
  --cut: 14px;
  clip-path: polygon(
    var(--cut) 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%,
    0 var(--cut)
  );
}

/* ---------- 4. 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55em;
  padding: .78rem 1.35rem;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1.2;
  transition: background .22s var(--ease), color .22s var(--ease),
              border-color .22s var(--ease), transform .22s var(--ease);
}
.btn--lime {
  background: var(--lime);
  border-color: var(--lime);
  color: #04150E;
}
.btn--lime:hover { background: var(--lemon); border-color: var(--lemon); transform: translateY(-1px); }
.btn--line {
  background: transparent;
  border-color: var(--line);
  color: var(--warm);
}
.btn--line:hover { border-color: var(--lime); color: var(--lime); transform: translateY(-1px); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: .45em;
  padding: .24rem .55rem;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}
.tag--lime { border-color: rgba(184, 255, 63, .5); background: rgba(184, 255, 63, .08); color: var(--lime); }
.tag--orange { border-color: rgba(255, 122, 26, .5); background: rgba(255, 122, 26, .08); color: var(--orange); }

.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--warm);
}
.data-num--accent { color: var(--orange); }
.data-unit {
  margin-left: .25em;
  font-family: var(--font-mono);
  font-size: .5em;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--mist);
}

/* ---------- 5. 面包屑 ---------- */
.breadcrumb { margin-bottom: clamp(18px, 2.6vw, 30px); }
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem .55rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mist);
}
.breadcrumb-item { display: inline-flex; align-items: center; gap: .55rem; }
.breadcrumb-item + .breadcrumb-item::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--line);
}
.breadcrumb-link { color: var(--mist); transition: color .2s var(--ease); }
.breadcrumb-link:hover { color: var(--lime); }
.breadcrumb-item[aria-current="page"] { color: var(--warm); }

/* ---------- 6. 可复用图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--turf) 0%, var(--stand) 100%);
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 26, 18, 0) 42%, rgba(2, 8, 6, .74) 100%);
}
.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: clamp(.9rem, 2vw, 1.4rem);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}
.media-frame--cut {
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--band { aspect-ratio: 21 / 9; }

/* ---------- 7. 显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ---------- 8. 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: clamp(12px, 3vw, 24px);
  top: -120px;
  z-index: 220;
  padding: .7rem 1.15rem;
  background: var(--lime);
  color: #04150E;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: .6rem; }

/* ---------- 9. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(184, 255, 63, .028) 0 22px, transparent 22px 66px),
    linear-gradient(180deg, #0C2E20 0%, #072016 100%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(.85rem, 2vw, 1.15rem) var(--gutter);
}

.header-lede {
  display: flex;
  align-items: center;
  gap: clamp(.8rem, 2.4vw, 2rem);
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  min-width: 0;
}
.brand-mark {
  position: relative;
  flex: none;
  width: 30px;
  height: 30px;
  background: var(--lime);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 62% 100%, 0 100%);
  transition: background .22s var(--ease);
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  background: #072016;
  clip-path: polygon(0 0, 100% 0, 100% 62%, 62% 100%, 0 100%);
}
.brand:hover .brand-mark { background: var(--lemon); }

.brand-text { display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: .03em;
  line-height: 1.15;
  color: var(--warm);
}
.brand-tagline {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  line-height: 1.3;
  color: var(--mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-index {
  display: none;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}
.index-label { color: var(--mist); }
.index-year { color: var(--lime); font-weight: 700; letter-spacing: .1em; }
.index-dot {
  width: 5px;
  height: 5px;
  flex: none;
  background: var(--orange);
  transform: rotate(45deg);
}
.index-meta { font-family: var(--font-body); letter-spacing: .04em; text-transform: none; }

/* 移动端栏目按钮 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  flex: none;
  padding: .55rem .8rem;
  border: 1px solid var(--line);
  background: rgba(21, 70, 49, .35);
  color: var(--warm);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.nav-toggle:hover { border-color: var(--lime); }
.nav-toggle[aria-expanded="true"] {
  border-color: var(--lime);
  background: var(--turf);
  color: var(--lime);
}
.nav-toggle-bars { display: flex; flex-direction: column; gap: 4px; width: 16px; }
.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform .24s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child { transform: translateY(-3px) rotate(-45deg); }

/* 导航 */
.site-nav { display: none; }

.nav-list { display: flex; }
.nav-item { position: relative; }
.nav-link {
  position: relative;
  display: inline-block;
  padding: .45rem .15rem;
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--warm);
  transition: color .2s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s var(--ease);
}
.nav-link:hover { color: var(--lemon); }
.nav-link:hover::after,
.nav-link:focus-visible::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--lime); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin-right: 10px;
  padding: .62rem 1rem;
  background: var(--lime);
  color: #051A12;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.nav-cta::after {
  content: "";
  position: absolute;
  top: 0;
  right: -10px;
  width: 10px;
  height: 100%;
  background: var(--lime);
  clip-path: polygon(0 0, 0 100%, 100% 50%);
  transition: background .2s var(--ease);
}
.nav-cta:hover { background: var(--lemon); color: #020806; }
.nav-cta:hover::after { background: var(--lemon); }

/* 页头刻度线 */
.header-rule {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 var(--gutter) 8px;
  background: var(--stand);
}
.rule-ticks {
  flex: 1 1 auto;
  min-width: 40px;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 15px);
}
.rule-status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}
.status-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(184, 255, 63, .16);
  animation: stand-pulse 2.6s ease-in-out infinite;
}
@keyframes stand-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(184, 255, 63, .14); }
  50% { box-shadow: 0 0 0 6px rgba(184, 255, 63, .04); }
}
.rule-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--lime) 0%, #8ED92E 55%, var(--orange) 100%);
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left center;
  will-change: transform;
}

/* ---------- 10. 移动端导航面板 ---------- */
@media (max-width: 959px) {
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .4rem var(--gutter) 1.5rem;
    background: var(--stand);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 30px 52px -32px rgba(2, 8, 6, .95);
  }
  .site-nav[data-open] { display: flex; }

  .nav-list { flex-direction: column; align-items: stretch; }
  .nav-item { border-bottom: 1px solid var(--line); }
  .nav-item:first-child { border-top: 1px solid var(--line); }
  .nav-link { display: block; padding: .95rem .1rem; font-size: 15px; }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] { padding-left: 1.1rem; color: var(--lime); }
  .nav-link[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: .1rem;
    top: 50%;
    width: 7px;
    height: 7px;
    background: var(--lime);
    transform: translateY(-50%) rotate(45deg);
  }
  .nav-cta { align-self: flex-start; margin: 1.2rem 10px 0 0; }
}

/* ---------- 11. 桌面端页头 ---------- */
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .site-nav {
    position: static;
    display: flex;
    align-items: center;
    gap: clamp(.75rem, 2vw, 1.75rem);
    padding: 0;
    border: 0;
    background: none;
    box-shadow: none;
  }
  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: clamp(.6rem, 1.8vw, 1.6rem);
  }
  .nav-item,
  .nav-item:first-child { border: 0; }
}

@media (min-width: 1040px) {
  .header-index { display: flex; }
}

@media (max-width: 559px) {
  .brand-tagline { display: none; }
  .rule-status { font-size: 9px; letter-spacing: .1em; }
}

/* ---------- 12. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(184, 255, 63, .02) 0 22px, transparent 22px 66px),
    linear-gradient(180deg, #082017 0%, #051A12 55%, #020806 100%);
  color: var(--warm);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 72px) var(--gutter) 0;
}

.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: .04em;
  line-height: 1.15;
  color: var(--warm);
}
.footer-summary {
  max-width: 36ch;
  margin-top: .75rem;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}
.footer-stamp {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lime);
}
.stamp-dot {
  width: 5px;
  height: 5px;
  flex: none;
  background: var(--orange);
  transform: rotate(45deg);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: clamp(20px, 3vw, 32px);
}
.footer-group-title,
.footer-contact-title {
  margin-bottom: .9rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lime);
}
.footer-list { display: grid; gap: .5rem; }
.footer-link {
  position: relative;
  display: inline-block;
  font-size: 14px;
  color: var(--mist);
  transition: color .22s var(--ease);
}
.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s var(--ease);
}
.footer-link:hover { color: var(--warm); }
.footer-link:hover::after,
.footer-link:focus-visible::after { transform: scaleX(1); }

.footer-contact-list { display: grid; gap: .8rem; }
.footer-contact-item { display: grid; gap: .15rem; }
.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}
.footer-contact-value {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--warm);
  word-break: break-word;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .5rem 1.75rem;
  max-width: var(--shell);
  margin: clamp(28px, 4vw, 48px) auto 0;
  padding: 1rem var(--gutter) 1.7rem;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--mist);
}
.footer-legal {
  font-family: var(--font-mono);
  letter-spacing: .08em;
  color: var(--mist);
}
.footer-note { max-width: 52ch; line-height: 1.6; }

@media (min-width: 720px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (min-width: 1040px) {
  .footer-inner {
    grid-template-columns: 1.15fr 1.9fr .95fr;
    align-items: start;
  }
  .footer-brand { grid-column: auto; }
}

/* ---------- 13. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .rule-progress { will-change: auto; }
}