/* ============================================================
   大江体育电竞 · 共享样式 /assets/site.css
   设计基调：江底墨青底色 + 赛道橙单点高亮 + 斜切分栏 + 极细边界
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --c-ink: #061A1F;
  --c-deep: #0B2F36;
  --c-tide: #14505A;
  --c-mist: #8FB3B8;
  --c-fog: #EAF3F2;
  --c-track: #FF6A2A;
  --c-track-deep: #B84616;
  --c-red: #C9362B;
  --c-gold: #D8A94A;
  --c-steel: #2A4A50;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", SFMono-Regular, Consolas, monospace;

  --shell-w: 1280px;
  --gutter: clamp(16px, 3.6vw, 44px);
  --line: 1px solid var(--c-steel);
  --line-soft: 1px solid rgba(42, 74, 80, 0.62);
  --radius: 2px;
  --dip: 18px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. 重置与中文排版基线 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-fog);
  background-color: var(--c-ink);
  background-image:
    radial-gradient(1100px 520px at 10% -10%, rgba(20, 80, 90, 0.62), transparent 62%),
    radial-gradient(820px 420px at 104% 2%, rgba(255, 106, 42, 0.10), transparent 58%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, figure, ul, ol, dl, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }

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

h1, .h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.03;
  font-size: clamp(2.3rem, 6.4vw, 5rem);
}

h2, .h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.16;
  font-size: clamp(1.45rem, 2.9vw, 2.15rem);
}

h3, .h3 {
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.45;
  font-size: 1.0625rem;
}

.lede {
  font-size: clamp(1rem, 1.35vw, 1.125rem);
  line-height: 1.78;
  color: var(--c-mist);
  max-width: 62ch;
}

.eyebrow,
.mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow { color: var(--c-track); }

/* ---------- 3. 容器与栅格 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 32px);
}

.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--tri { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--quad { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--aside { grid-template-columns: minmax(0, 1fr) minmax(220px, 320px); }

@media (max-width: 980px) {
  .grid--split,
  .grid--tri,
  .grid--quad,
  .grid--aside { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 4. 页面题头 / 面包屑 ---------- */
.page-head {
  padding-block: clamp(24px, 4vw, 52px) clamp(18px, 2.6vw, 32px);
  border-bottom: var(--line-soft);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.breadcrumbs a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.breadcrumbs a:hover {
  color: var(--c-fog);
  border-bottom-color: var(--c-track);
}

.breadcrumbs__sep { color: var(--c-steel); }

.breadcrumbs [aria-current="page"] { color: var(--c-fog); }

/* ---------- 5. 按钮系统 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--c-steel);
  border-radius: var(--radius);
  background: transparent;
  color: var(--c-fog);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease),
              border-color .2s var(--ease), transform .15s var(--ease);
}

.btn:hover { background-color: var(--c-tide); border-color: var(--c-mist); }
.btn:active { transform: translateY(1px); }

.btn--cta {
  background-color: var(--c-track);
  border-color: var(--c-track);
  color: #1B0A03;
}

.btn--cta:hover {
  background-color: #FF8047;
  border-color: #FF8047;
  color: #1B0A03;
}

.btn--quiet {
  border-color: transparent;
  background-color: rgba(20, 80, 90, 0.42);
  color: var(--c-mist);
}

.btn--quiet:hover {
  background-color: rgba(20, 80, 90, 0.78);
  color: var(--c-fog);
}

.btn--ghost {
  border-color: var(--c-steel);
  color: var(--c-mist);
}

.btn--ghost:hover { color: var(--c-fog); }

/* ---------- 6. 头部：命令台 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background-color: rgba(6, 26, 31, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 14px 34px -22px rgba(0, 0, 0, 0.95);
}

.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -140%);
  z-index: 80;
  padding: 10px 18px;
  background-color: var(--c-track);
  color: #1B0A03;
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform .18s var(--ease);
}

.skip-link:focus-visible { transform: translate(-50%, 0); }

.cmdbar {
  position: relative;
  background-image: linear-gradient(180deg, rgba(11, 47, 54, 0.94), rgba(6, 26, 31, 0.9));
}

.cmdbar::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background-image: linear-gradient(90deg, transparent, var(--c-tide) 20%, var(--c-track) 64%, transparent);
  opacity: 0.7;
}

.cmdbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.8vw, 26px);
  min-height: 62px;
  padding-block: 9px;
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--c-fog);
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--c-track);
  color: var(--c-track);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, 100% 74%, 74% 100%, 0 100%);
  background-color: rgba(255, 106, 42, 0.08);
  transition: background-color .2s var(--ease);
}

.brand:hover .brand__mark { background-color: rgba(255, 106, 42, 0.2); }

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.25;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9375rem;
  letter-spacing: -0.02em;
}

.brand__line {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

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

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__list a {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 9px 10px;
  border-bottom: 2px solid transparent;
  font-size: 0.8438rem;
  font-weight: 500;
  color: var(--c-mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), background-color .2s var(--ease),
              border-color .2s var(--ease);
}

.site-nav__list a:hover {
  color: var(--c-fog);
  background-color: rgba(20, 80, 90, 0.5);
}

.site-nav__list a[aria-current="page"] {
  color: var(--c-fog);
  background-color: rgba(255, 106, 42, 0.10);
  border-bottom-color: var(--c-track);
}

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.06em;
  color: var(--c-track);
  opacity: 0.85;
}

/* 操作区 */
.cmdbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 12px;
  border: 1px solid var(--c-steel);
  border-radius: var(--radius);
  background-color: rgba(20, 80, 90, 0.35);
  color: var(--c-fog);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.nav-toggle:hover { border-color: var(--c-track); }

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  background-color: var(--c-track);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

/* 收藏轨道 */
.fav-rail {
  border-top: 1px solid rgba(42, 74, 80, 0.7);
  background-image: linear-gradient(90deg, rgba(20, 80, 90, 0.55), rgba(6, 26, 31, 0.92) 48%, rgba(255, 106, 42, 0.09));
}

.fav-rail__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-block: 7px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--c-mist);
}

.fav-rail__dot {
  width: 7px;
  height: 7px;
  background-color: var(--c-track);
  box-shadow: 0 0 0 3px rgba(255, 106, 42, 0.18);
}

.fav-rail__label { color: var(--c-mist); }

.fav-rail__count { color: var(--c-track); }
.fav-rail__count b { font-weight: 600; }

.fav-rail__link {
  margin-left: auto;
  color: var(--c-fog);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 42, 0.55);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.fav-rail__link:hover {
  color: var(--c-track);
  border-bottom-color: var(--c-track);
}

/* ---------- 7. 头部响应式 ---------- */
@media (max-width: 1080px) {
  .cmdbar__inner {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    order: 5;
    flex: 1 1 100%;
    margin-left: 0;
    display: none;
    border-top: var(--line-soft);
    padding-block: 6px 10px;
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__list a {
    padding: 12px 12px;
    font-size: 0.9375rem;
    border-bottom: none;
    border-left: 2px solid transparent;
  }

  .site-nav__list a[aria-current="page"] {
    border-left-color: var(--c-track);
    border-bottom-color: transparent;
  }

  .cmdbar__actions .btn--quiet { display: none; }
}

@media (max-width: 620px) {
  .brand__line { display: none; }
  .cmdbar__actions { gap: 6px; }
  .btn { padding: 8px 12px; font-size: 0.75rem; }
  .fav-rail__link { margin-left: 0; }
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 7vw, 96px);
  background-color: var(--c-ink);
  border-top: 1px solid var(--c-steel);
  color: var(--c-mist);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(320px, 42%);
  height: 2px;
  background-image: linear-gradient(90deg, var(--c-track), transparent);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.7fr repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.4vw, 44px);
  padding-block: clamp(36px, 5vw, 64px) clamp(26px, 3.4vw, 42px);
}

.footer__brand { max-width: 42ch; }

.footer__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: var(--c-fog);
}

.footer__tag {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--c-track);
}

.footer__contact {
  margin-top: 16px;
  font-size: 0.8125rem;
  line-height: 1.85;
  color: var(--c-mist);
}

.footer__addr {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 1px solid var(--c-steel);
  font-size: 0.75rem;
  line-height: 1.8;
  color: rgba(143, 179, 184, 0.82);
}

.footer__title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-fog);
  padding-bottom: 10px;
  border-bottom: var(--line-soft);
}

.footer__links {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.footer__links a {
  font-size: 0.8125rem;
  color: var(--c-mist);
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.footer__links a:hover {
  color: var(--c-track);
  padding-left: 4px;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  padding-block: 16px 40px;
  border-top: var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.07em;
  color: rgba(143, 179, 184, 0.86);
}

.footer__legal-item { display: inline-flex; align-items: center; gap: 6px; }

@media (max-width: 880px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 9. 通用内容组件 ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: var(--line-soft);
  margin-bottom: clamp(18px, 2.6vw, 32px);
}

.panel {
  padding: clamp(16px, 2.4vw, 28px);
  background-image: linear-gradient(160deg, rgba(11, 47, 54, 0.92), rgba(6, 26, 31, 0.94));
  border: var(--line-soft);
  border-radius: var(--radius);
  box-shadow: 0 20px 44px -32px rgba(0, 0, 0, 0.95);
}

.panel--flat { background-image: none; background-color: rgba(11, 47, 54, 0.55); }

.panel--light {
  background-image: none;
  background-color: var(--c-fog);
  border-color: #B9CFCE;
  color: var(--c-deep);
}

.panel--light .lede,
.panel--light .aside-note { color: #27505A; }

.data-strip {
  display: flex;
  flex-wrap: wrap;
  border-top: var(--line-soft);
  border-bottom: var(--line-soft);
}

.data-strip__item {
  flex: 1 1 150px;
  padding: 11px 14px;
  border-right: var(--line-soft);
}

.data-strip__item:last-child { border-right: none; }

.data-strip__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.4rem);
  letter-spacing: -0.02em;
  color: var(--c-fog);
}

.data-strip__key {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--c-mist);
}

.aside-note {
  padding: 10px 0 10px 14px;
  border-left: 2px solid var(--c-track);
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--c-mist);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  line-height: 1.85;
  text-transform: uppercase;
}

.tag--track { color: var(--c-track); }

.tag--report {
  color: #FF8578;
  border-color: rgba(201, 54, 43, 0.72);
  background-color: rgba(201, 54, 43, 0.18);
}

.tag--gold {
  color: var(--c-gold);
  border-color: rgba(216, 169, 74, 0.55);
  background-color: rgba(216, 169, 74, 0.12);
}

/* 图片容器基础规则（页面阶段放占位图） */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: var(--line-soft);
  background-image: linear-gradient(150deg, var(--c-tide), var(--c-ink) 68%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--dip)), calc(100% - var(--dip)) 100%, 0 100%);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.94;
}

.media--hero { aspect-ratio: 21 / 9; }
.media--wide { aspect-ratio: 16 / 9; }
.media--portrait { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.07em;
  color: var(--c-fog);
  background-image: linear-gradient(0deg, rgba(6, 26, 31, 0.94), transparent);
}

@media (max-width: 640px) {
  .media--hero { aspect-ratio: 4 / 3; }
  .media--wide { aspect-ratio: 4 / 3; }
}

/* 收藏按钮状态 */
[data-fav-toggle] {
  border-color: var(--c-steel);
  color: var(--c-mist);
}

[data-fav-toggle][data-on="true"] {
  border-color: var(--c-track);
  background-color: rgba(255, 106, 42, 0.16);
  color: var(--c-track);
}

/* 章节索引高亮 */
[data-toc-link][aria-current="true"] {
  color: var(--c-track);
  border-left-color: var(--c-track);
}

/* ---------- 10. 滚动进度与显现 ---------- */
.scroll-progress {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  z-index: 90;
  background-image: linear-gradient(90deg, var(--c-track), var(--c-gold));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  transition: transform .12s linear;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}

[data-reveal="in"] {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

  .scroll-progress { transition: none; }
}