/* ============================================================
   星空体育赛事 · 全站共享样式 /assets/site.css
   堆叠面板式布局 · 星空蓝 + 活力橙 · 直角画板
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--strip-h) + 24px);
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, figure, blockquote, dl, dd, hr {
  margin: 0;
}

ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
hr { border: 0; }

/* ---------- 2. 设计令牌 ---------- */
:root {
  --ink: #050B1A;
  --deep: #0A1B3D;
  --orbit: #14315F;
  --electric: #1F4C8F;
  --accent: #FF6A1A;
  --accent-soft: #FFB35C;
  --steel: #C9D2DE;
  --mist: #F4F7FB;
  --ink-blue: #10203A;
  --rock: #8A94A6;

  --glass: rgba(255, 255, 255, 0.07);
  --glass-hi: rgba(255, 255, 255, 0.13);
  --line: rgba(201, 210, 222, 0.16);
  --line-strong: rgba(201, 210, 222, 0.32);

  --font-sans: "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Barlow Condensed", "Roboto Condensed", ui-monospace,
    "SFMono-Regular", Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --header-h: 64px;
  --strip-h: 30px;
  --shell: 1240px;
  --gutter: clamp(20px, 4.4vw, 56px);
  --shell-pad: clamp(18px, 4vw, 48px);
}

@media (min-width: 901px) {
  :root {
    --header-h: 84px;
    --strip-h: 34px;
  }
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--ink);
  color: var(--steel);
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--accent);
  color: #1A0A00;
}

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

.display {
  font-size: clamp(56px, 9vw, 128px);
  font-weight: 200;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.section-title {
  font-size: clamp(30px, 3.6vw, 52px);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.lead {
  font-size: clamp(17px, 1.35vw, 20px);
  font-weight: 300;
  line-height: 1.7;
  color: var(--steel);
}

.index-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rock);
}

.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.accent-text {
  color: var(--accent);
  font-weight: 700;
}

p + p { margin-top: 1em; }

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

.container--wide { max-width: 1480px; }
.container--narrow { max-width: 820px; }

.page-offset {
  padding-top: calc(var(--header-h) + var(--strip-h) + clamp(36px, 6vw, 88px));
}

.board {
  position: relative;
  padding-block: clamp(64px, 9vw, 120px);
}

.board + .board::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--line-strong) 18%,
    rgba(255, 106, 26, 0.45) 50%,
    var(--line-strong) 82%,
    transparent 100%
  );
}

.grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

.star-line {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--line-strong) 20%,
    rgba(255, 106, 26, 0.5) 50%,
    var(--line-strong) 80%,
    transparent
  );
}

.space-bg {
  background-color: var(--ink);
  background-image:
    radial-gradient(90% 120% at 78% -20%, rgba(31, 76, 143, 0.55), transparent 60%),
    radial-gradient(70% 90% at 6% 110%, rgba(255, 106, 26, 0.16), transparent 60%);
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background-color: transparent;
  color: var(--mist);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.26s var(--ease), color 0.26s var(--ease),
    border-color 0.26s var(--ease), transform 0.26s var(--ease);
}

.btn:hover {
  border-color: var(--steel);
  background-color: var(--glass);
}

.btn:active { transform: translateY(1px); }

.btn--accent {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #1A0A00;
  font-weight: 700;
}

.btn--accent:hover {
  background-color: var(--accent-soft);
  border-color: var(--accent-soft);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--steel);
}

.btn--ghost:hover {
  color: var(--mist);
  border-color: var(--steel);
  background-color: transparent;
}

.btn--light {
  background-color: var(--mist);
  border-color: var(--mist);
  color: var(--ink-blue);
}

.btn--light:hover {
  background-color: #fff;
  border-color: #fff;
}

.btn--sm {
  padding: 8px 16px;
  font-size: 12.5px;
}

/* ---------- 6. 画板面板 ---------- */
.panel {
  position: relative;
  padding: clamp(22px, 3vw, 40px);
  border: 1px solid var(--line);
  border-radius: 0;
  background-color: var(--deep);
}

.panel--glass {
  background-color: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.panel--orbit { background-color: var(--orbit); }

.panel--light {
  background-color: var(--mist);
  border-color: transparent;
  color: var(--ink-blue);
}

.panel--light .display,
.panel--light .section-title { color: var(--ink-blue); }

.panel--light .lead { color: #3A4A63; }

.panel--light .index-label { color: #6A7688; }

.panel--edge::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
}

/* ---------- 7. 图片容器（供页面阶段放置占位） ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line);
  background-color: var(--orbit);
  background-image:
    linear-gradient(150deg, var(--orbit) 0%, var(--deep) 55%, var(--ink) 100%);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(120% 90% at 78% 8%, rgba(255, 106, 26, 0.2), transparent 58%),
    radial-gradient(90% 70% at 12% 92%, rgba(31, 76, 143, 0.45), transparent 62%);
}

.media-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--21-9 { aspect-ratio: 21 / 9; }
.media-frame--16-9 { aspect-ratio: 16 / 9; }
.media-frame--4-3 { aspect-ratio: 4 / 3; }
.media-frame--1-1 { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-caption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rock);
}

/* ---------- 8. 面包屑与索引 ---------- */
.breadcrumb {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--line-strong);
}

.breadcrumb a { color: var(--steel); transition: color 0.22s var(--ease); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb [aria-current="page"] { color: var(--mist); }

.index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--rock);
  transition: color 0.22s var(--ease);
}

.index-link::after { content: "→"; color: var(--accent); }
.index-link:hover { color: var(--mist); }

/* ---------- 9. 筛选按钮组 ---------- */
.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 0;
  background-color: transparent;
  color: var(--steel);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 0.24s var(--ease), color 0.24s var(--ease),
    border-color 0.24s var(--ease);
}

.filter-btn:hover {
  border-color: var(--steel);
  color: var(--mist);
}

.filter-btn[aria-pressed="true"] {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #1A0A00;
  font-weight: 700;
}

/* ---------- 10. 头部 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -120px;
  z-index: 200;
  padding: 10px 18px;
  background-color: var(--accent);
  color: #1A0A00;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: top 0.2s var(--ease);
}

.skip-link:focus { top: 10px; }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  background-color: transparent;
  background-image: linear-gradient(
    180deg,
    rgba(5, 11, 26, 0.86) 0%,
    rgba(5, 11, 26, 0.42) 62%,
    rgba(5, 11, 26, 0) 100%
  );
  border-bottom: 1px solid transparent;
  transition: background-color 0.34s var(--ease), border-color 0.34s var(--ease);
}

.site-header.is-scrolled {
  background-image: none;
  background-color: rgba(10, 27, 61, 0.96);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
  backdrop-filter: blur(16px) saturate(1.15);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 34px);
  width: 100%;
  max-width: var(--shell);
  height: var(--header-h);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: var(--mist);
}

.brand-mark {
  width: 26px;
  height: 26px;
  flex: none;
  background: linear-gradient(140deg, var(--accent) 0%, var(--accent-soft) 100%);
  clip-path: polygon(50% 0%, 61% 38%, 100% 50%, 61% 62%, 50% 100%, 39% 62%, 0% 50%, 39% 38%);
  transition: transform 0.5s var(--ease);
}

.brand:hover .brand-mark { transform: rotate(90deg) scale(1.06); }

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.12;
}

.brand-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.brand-latin {
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: 0.24em;
  color: var(--rock);
}

/* 导航 */
.site-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
}

.nav-list a {
  position: relative;
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--steel);
  transition: color 0.24s var(--ease);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

.nav-list a:hover { color: var(--mist); }
.nav-list a:hover::after { transform: scaleX(1); }

.nav-list a[aria-current="page"] {
  color: #FFFFFF;
  font-weight: 600;
}

.nav-list a[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta { margin-left: clamp(8px, 1.4vw, 18px); }

/* 右侧工具 */
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.fav-entry {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--steel);
  transition: border-color 0.26s var(--ease), color 0.26s var(--ease);
}

.fav-entry:hover {
  border-color: var(--accent);
  color: var(--mist);
}

.fav-entry-count {
  min-width: 1.4em;
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  color: var(--accent);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle-bars i {
  display: block;
  height: 1.5px;
  background-color: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.site-header[data-open] .nav-toggle-bars i:first-child {
  transform: translateY(2.75px) rotate(45deg);
}

.site-header[data-open] .nav-toggle-bars i:last-child {
  transform: translateY(-2.75px) rotate(-45deg);
}

.nav-toggle-text { white-space: nowrap; }

/* 状态条 */
.status-strip {
  border-top: 1px solid var(--line);
  background-color: rgba(5, 11, 26, 0.5);
}

.status-strip-inner {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 36px);
  height: var(--strip-h);
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}

.status-strip-inner::-webkit-scrollbar { display: none; }

.status-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--rock);
}

.status-key::after {
  content: "·";
  margin-left: 7px;
  color: var(--line-strong);
}

.status-val {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.status-val.is-accent { color: var(--accent); }

/* 阅读进度轨 */
.scroll-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  overflow: hidden;
}

.scroll-rail-bar {
  display: block;
  width: 0;
  height: 100%;
  background-image: linear-gradient(90deg, var(--electric), var(--accent));
  transition: width 0.12s linear;
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  padding: clamp(56px, 8vw, 104px) 0 28px;
  background-color: var(--ink);
  border-top: 1px solid var(--line);
  color: var(--steel);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 106, 26, 0.7),
    rgba(201, 210, 222, 0.35),
    transparent
  );
}

.footer-glow {
  position: absolute;
  top: -38%;
  right: -16%;
  width: min(680px, 90vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(31, 76, 143, 0.55) 0%, rgba(31, 76, 143, 0) 62%);
}

.footer-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.footer-brand-line {
  max-width: 22ch;
  margin-bottom: clamp(36px, 6vw, 72px);
  font-size: clamp(24px, 3.2vw, 42px);
  font-weight: 200;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(24px, 3.4vw, 48px);
  padding-bottom: clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.footer-col-title {
  margin-bottom: 16px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rock);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-links a {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--steel);
  transition: color 0.22s var(--ease), transform 0.22s var(--ease);
}

.footer-links a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-contact {
  display: grid;
  gap: 12px;
  padding: clamp(28px, 4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
}

.contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

.contact-key {
  flex: 0 0 5.6em;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.contact-val { color: var(--mist); }

.contact-note {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.copy-btn {
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 0;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--rock);
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.copy-btn:hover,
.copy-btn[data-copied="true"] {
  border-color: var(--accent);
  color: var(--accent);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
  padding-top: clamp(24px, 3vw, 34px);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.footer-copy { margin: 0; }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-legal a {
  color: var(--rock);
  transition: color 0.22s var(--ease);
}

.footer-legal a:hover { color: var(--accent); }

.footer-icp { margin-left: auto; }

/* ---------- 12. 渐入动效 ---------- */
.has-js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity 0.44s var(--ease), transform 0.44s var(--ease);
}

.has-js [data-reveal].is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

/* ---------- 13. 响应式：平板与手机 ---------- */
@media (max-width: 1080px) {
  .fav-entry-label { display: none; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }

  .site-header[data-open] {
    background-image: none;
    background-color: var(--deep);
    border-bottom-color: var(--line);
  }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: calc(var(--header-h) + var(--strip-h));
    bottom: 0;
    margin-left: 0;
    padding: 10px var(--shell-pad) 40px;
    background-image: linear-gradient(180deg, #071231 0%, var(--ink) 100%);
    border-top: 1px solid var(--line);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.26s var(--ease), transform 0.32s var(--ease),
      visibility 0.26s var(--ease);
  }

  .site-header[data-open] .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list li { border-bottom: 1px solid var(--line); }

  .nav-list a {
    display: block;
    padding: 17px 2px;
    font-size: 17px;
    letter-spacing: 0.08em;
  }

  .nav-list a::after { display: none; }

  .nav-list a[aria-current="page"] { color: var(--accent); }

  .nav-list a[aria-current="page"]::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 10px;
    vertical-align: middle;
    background-color: var(--accent);
    clip-path: polygon(50% 0%, 61% 39%, 100% 50%, 61% 61%, 50% 100%, 39% 61%, 0% 50%, 39% 39%);
  }

  .nav-cta {
    width: 100%;
    margin: 26px 0 0;
    padding: 15px 24px;
    font-size: 14px;
  }

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

@media (max-width: 520px) {
  .brand-latin { display: none; }
  .header-bar { gap: 10px; }
  .fav-entry { padding: 7px 10px; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 700px) {
  .footer-icp { margin-left: 0; }
  .contact-key { flex-basis: 100%; }
}

/* ---------- 14. 降低动效偏好 ---------- */
@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;
  }

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

  .scroll-rail-bar { transition: none; }
}