/* ============================================================
   球盟会赛事 · 共享样式 /assets/site.css
   夜蓝长卷 + 深青绿战术框 + 荧光橙强调
   ============================================================ */

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

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

ul, ol { list-style: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

a { color: inherit; text-decoration: none; }

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

hr { border: 0; }

/* ---------- design tokens ---------- */
:root {
  --ink: #061826;
  --teal: #0B3B3A;
  --brown: #1C1511;
  --cream: #F4E7D3;
  --orange: #FF6A2A;
  --white: #F8FAFC;
  --lake: #2E9BD6;
  --sand: #C9A45C;
  --data: #38E0C8;

  --rail: 272px;
  --frame: 4px;

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

  --shell-max: 1240px;
  --gut: clamp(20px, 3.6vw, 56px);
  --section-y: clamp(60px, 8.5vw, 128px);

  --shadow-hard: 8px 8px 0 var(--brown);
  --shadow-deep: 5px 5px 0 rgba(6, 24, 38, .9);
}

::selection {
  background: var(--orange);
  color: var(--brown);
}

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

/* ---------- base layout ---------- */
body {
  min-height: 100vh;
  padding-left: var(--rail);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#main-content {
  display: block;
  scroll-margin-top: 96px;
}

/* ---------- typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: .02em;
  color: var(--white);
  text-wrap: balance;
}

h1 { font-size: clamp(42px, 6vw, 80px); }
h2 { font-size: clamp(28px, 3.4vw, 44px); }
h3 { font-size: clamp(20px, 2vw, 27px); }
h4 { font-size: clamp(17px, 1.5vw, 21px); }

p { max-width: 72ch; }

strong { font-weight: 700; color: var(--white); }

.mono {
  font-family: var(--font-mono);
  letter-spacing: .06em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--sand);
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  left: 14px;
  top: -140px;
  z-index: 200;
  padding: 11px 18px;
  background: var(--orange);
  color: var(--brown);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .08em;
  border: 3px solid var(--brown);
  box-shadow: var(--shadow-deep);
  transition: top .18s ease;
}

.skip-link:focus,
.skip-link:focus-visible { top: 14px; }

/* ============================================================
   头部：框架式左侧导航
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 60;
  width: var(--rail);
  display: flex;
  flex-direction: column;
  padding: 22px 20px 24px;
  background: var(--teal);
  border-right: var(--frame) solid var(--brown);
  box-shadow: inset -1px 0 0 rgba(56, 224, 200, .28), 6px 0 24px rgba(0, 0, 0, .35);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.site-header__top {
  display: block;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 4px 20px;
  border-bottom: 2px solid rgba(244, 231, 211, .16);
}

.brand__mark {
  flex: none;
  width: 38px;
  height: 38px;
  color: var(--orange);
}

.brand__mark svg { width: 100%; height: 100%; }

.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: .08em;
  color: var(--white);
}

.brand__line {
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--data);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: var(--ink);
  color: var(--white);
  border: 3px solid var(--brown);
  box-shadow: 3px 3px 0 var(--orange);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .1em;
}

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: var(--orange);
  transition: transform .24s ease, opacity .2s ease;
}

.site-header[data-open] .nav-toggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* 主导航 */
.site-nav {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  padding-top: 18px;
}

.site-nav__caption {
  padding: 0 4px 10px;
  margin-bottom: 12px;
  border-bottom: 2px solid rgba(201, 164, 92, .35);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--sand);
  max-width: none;
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-nav__link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 11px 12px 11px 10px;
  border: 2px solid transparent;
  border-left: 4px solid rgba(244, 231, 211, .22);
  color: var(--cream);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: .06em;
  transition: transform .22s ease, border-color .22s ease, background-color .22s ease, color .22s ease;
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--lake);
  transition: color .22s ease;
}

.site-nav__link:hover {
  border-left-color: var(--orange);
  background: rgba(6, 24, 38, .55);
  transform: translateX(3px);
}

.site-nav__link[aria-current="page"] {
  border: 2px solid var(--orange);
  border-left-width: 6px;
  background: rgba(255, 106, 42, .16);
  color: var(--white);
}

.site-nav__link[aria-current="page"] .site-nav__num { color: var(--orange); }

/* 导航框底部 */
.site-header__foot {
  margin-top: auto;
  padding-top: 18px;
  border-top: 2px solid rgba(244, 231, 211, .18);
}

.site-header__hint {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--sand);
  max-width: none;
}

.quick-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-actions__link {
  display: block;
  padding: 9px 12px;
  border: 2px solid rgba(46, 155, 214, .6);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .06em;
  transition: background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.quick-actions__link:hover {
  background: rgba(46, 155, 214, .2);
  border-color: var(--data);
  transform: translateY(-2px);
}

.site-header__meta {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: rgba(244, 231, 211, .62);
  max-width: none;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  margin-top: var(--section-y);
  background: var(--brown);
  color: var(--cream);
  border-top: var(--frame) solid var(--orange);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 72px) var(--gut) 34px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
}

.site-footer__brand {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 26px;
  letter-spacing: .1em;
  color: var(--white);
  line-height: 1.2;
  max-width: none;
}

.site-footer__tag {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--data);
  max-width: none;
}

.site-footer__note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 231, 211, .72);
  max-width: 36ch;
}

.footer-col__title {
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(201, 164, 92, .32);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sand);
}

.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col__link {
  display: inline-block;
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--cream);
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease, transform .2s ease;
}

.footer-col__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
  transform: translateX(2px);
}

.site-footer__contact {
  display: grid;
  gap: 6px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 2px solid rgba(244, 231, 211, .16);
}

.site-footer__contactline {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--data);
  max-width: none;
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 26px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 2px solid rgba(244, 231, 211, .12);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(244, 231, 211, .6);
}

.site-footer__legal,
.site-footer__copy { max-width: none; }

/* ============================================================
   通用容器与章节
   ============================================================ */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section { padding-block: var(--section-y); }
.section--tight { padding-block: calc(var(--section-y) * .6); }

.band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px 18px;
  padding-top: 16px;
  margin-bottom: clamp(26px, 4vw, 50px);
  border-top: var(--frame) solid var(--orange);
}

.band__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .24em;
  color: var(--orange);
}

.band__title {
  font-family: var(--font-head);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 700;
  letter-spacing: .02em;
}

.band__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--sand);
}

/* 网格 */
.grid {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
}

.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)); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  background: var(--orange);
  color: var(--brown);
  border: 3px solid var(--brown);
  box-shadow: var(--shadow-deep);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .08em;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(6, 24, 38, .9);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(6, 24, 38, .9);
}

.btn--ghost {
  background: transparent;
  color: var(--cream);
  border-color: var(--cream);
  box-shadow: 5px 5px 0 var(--orange);
}

.btn--ghost:hover { background: rgba(244, 231, 211, .1); }

.btn--data {
  background: var(--data);
  color: var(--brown);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(248, 250, 252, .6);
}

.breadcrumb a { color: var(--data); transition: color .2s ease; }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb__sep { color: rgba(248, 250, 252, .32); }
.breadcrumb [aria-current="page"] { color: var(--cream); }

/* 正文块 */
.prose { max-width: 74ch; }

.prose > * + * { margin-top: 1.05em; }

.prose p { color: rgba(248, 250, 252, .86); }

.prose h2 { margin-top: 1.5em; }
.prose h3 { margin-top: 1.3em; }

.prose ul {
  display: grid;
  gap: 10px;
}

.prose li {
  position: relative;
  padding-left: 22px;
  color: rgba(248, 250, 252, .86);
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

.prose a {
  color: var(--data);
  border-bottom: 1px solid rgba(56, 224, 200, .45);
  transition: color .2s ease, border-color .2s ease;
}

.prose a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* 磁贴卡片 */
.card {
  position: relative;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--teal);
  border: 3px solid var(--brown);
  box-shadow: var(--shadow-hard);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}

.card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 12px 12px 0 var(--brown);
  border-color: var(--orange);
}

.card__eyebrow {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--data);
  max-width: none;
}

.card__title {
  margin-bottom: 10px;
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--white);
}

.card__text {
  font-size: 15.5px;
  line-height: 1.7;
  color: rgba(244, 231, 211, .82);
}

.card--paper {
  background: var(--cream);
  border-color: var(--brown);
}

.card--paper .card__title { color: var(--brown); }
.card--paper .card__text { color: rgba(28, 21, 17, .78); }
.card--paper .card__eyebrow { color: #7A4B1E; }

/* 小标记 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 2px solid var(--lake);
  color: var(--data);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
}

.chip--orange { border-color: var(--orange); color: var(--orange); }
.chip--sand { border-color: var(--sand); color: var(--sand); }

/* 数据块 */
.stat { display: grid; gap: 6px; }

.stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--orange);
}

.stat__label {
  font-size: 14px;
  letter-spacing: .08em;
  color: rgba(248, 250, 252, .7);
  max-width: none;
}

/* 分隔线 */
.rule {
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0 18%, var(--teal) 18% 62%, rgba(244, 231, 211, .18) 62% 100%);
}

/* 图片占位容器 */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--teal), var(--ink) 62%);
  border: 3px solid var(--brown);
  box-shadow: var(--shadow-hard);
}

.media-frame > img,
.media-frame > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 0 58%, rgba(255, 106, 42, .22) 58.4%, transparent 59.2%);
}

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

.media-frame__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 7px 14px;
  background: var(--brown);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

/* 标签页 */
.tabs { display: block; }

.tabs__list {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 24px;
  border-bottom: 3px solid var(--brown);
}

.tabs__tab {
  margin-bottom: -3px;
  padding: 12px 20px;
  background: transparent;
  border: 3px solid transparent;
  border-bottom: 0;
  color: rgba(244, 231, 211, .72);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .08em;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease;
}

.tabs__tab:hover {
  color: var(--white);
  background: rgba(46, 155, 214, .16);
}

.tabs__tab[aria-selected="true"] {
  color: var(--brown);
  background: var(--cream);
  border-color: var(--brown);
}

.tabs__panel { outline: none; }
.tabs__panel[hidden] { display: none; }

/* 滚动进度 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* 进入视口动效 */
html[data-js] [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .34s ease, transform .34s cubic-bezier(.22, .9, .24, 1);
}

html[data-js] [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1023px) {
  body {
    padding-left: 0;
    padding-top: 66px;
  }

  #main-content { scroll-margin-top: 78px; }

  .site-header {
    inset: 0 0 auto 0;
    width: auto;
    max-height: 100vh;
    padding: 0;
    border-right: 0;
    border-bottom: var(--frame) solid var(--brown);
    box-shadow: 0 10px 26px rgba(0, 0, 0, .42);
  }

  .site-header__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    height: 62px;
    padding: 0 16px;
    border-bottom: 2px solid rgba(244, 231, 211, .16);
  }

  .brand {
    padding: 0;
    gap: 10px;
    border-bottom: 0;
    min-width: 0;
  }

  .brand__mark { width: 30px; height: 30px; }
  .brand__name { font-size: 18px; letter-spacing: .06em; }
  .brand__line { display: none; }

  .nav-toggle { display: inline-flex; flex: none; }

  .site-nav {
    display: none;
    flex: 0 0 auto;
    padding: 18px 16px 6px;
  }

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

  .site-nav__caption { margin-bottom: 10px; }

  .site-nav__link {
    grid-template-columns: 38px minmax(0, 1fr);
    padding: 13px 12px;
    font-size: 20px;
  }

  .site-header__foot {
    display: none;
    margin-top: 0;
    padding: 18px 16px 22px;
    border-top: 2px solid rgba(244, 231, 211, .16);
  }

  .site-header[data-open] .site-header__foot { display: block; }

  .quick-actions { flex-direction: row; flex-wrap: wrap; }
  .quick-actions__link { flex: 1 1 132px; text-align: center; }

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

  .band__meta { margin-left: 0; width: 100%; }
}

@media (max-width: 960px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  body { font-size: 16.5px; }

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

  .site-footer__grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }

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

  .tabs__tab { padding: 11px 14px; font-size: 15px; }

  .media-frame { box-shadow: 6px 6px 0 var(--brown); }

  .card { box-shadow: 6px 6px 0 var(--brown); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

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

  .card:hover,
  .site-nav__link:hover,
  .footer-col__link:hover,
  .btn:hover {
    transform: none;
  }
}