/* ============================================================
   江南体育 · JN PLAYBOOK 共享样式表
   路径：/assets/site.css
   职责：reset、变量、中文排版、共享页头页脚、通用组件
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

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

ul, ol { padding: 0; list-style: none; }

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

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; }

table { border-collapse: collapse; width: 100%; }

:focus-visible {
  outline: 2px solid #C2452E;
  outline-offset: 2px;
  border-radius: 1px;
}

/* ---------- 变量 ---------- */
:root {
  /* 品牌色：自然矿物色体系 */
  --ink: #1C2226;
  --ink-green: #17302B;
  --celadon: #3F6F63;
  --celadon-light: #A8C4BC;
  --cinnabar: #C2452E;
  --gold: #C9A227;
  --moss: #6B7A52;
  --clay: #B4714F;
  --stone: #6E7379;
  --rice: #F6F2EA;
  --rice-2: #EFE9DE;

  --line: rgba(28, 34, 38, 0.14);
  --line-strong: rgba(28, 34, 38, 0.28);
  --shadow-1: 0 1px 0 rgba(28, 34, 38, 0.04), 0 14px 30px -24px rgba(23, 48, 43, 0.55);
  --shadow-2: 0 26px 52px -32px rgba(23, 48, 43, 0.72);

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", "Consolas", "Courier New", monospace;

  --w: 1180px;
  --radius: 2px;
  --masthead-rule: 3px;
}

/* ---------- 基础排版 ---------- */
body {
  background-color: var(--rice);
  background-image:
    repeating-linear-gradient(90deg, rgba(63, 111, 99, 0.05) 0 1px, transparent 1px 96px);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: var(--ink);
}

h1 { font-size: clamp(34px, 5.2vw, 62px); }
h2 { font-size: clamp(26px, 3.4vw, 40px); }
h3 { font-size: clamp(20px, 2.2vw, 26px); }

p { max-width: 74ch; }

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

#main-content { display: block; }

/* ---------- 跳至主要内容 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 120;
  padding: 10px 18px;
  background: var(--ink-green);
  color: var(--rice);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

/* ---------- 页面外壳与网格 ---------- */
.shell {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: 56px; }

.section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line-strong);
}

.grid {
  display: grid;
  gap: 22px;
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--aside { grid-template-columns: minmax(0, 7fr) minmax(0, 3fr); }

.rule {
  height: 1px;
  border: 0;
  background: var(--line-strong);
  margin: 0;
}

/* ---------- 文本组件 ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--celadon);
  margin-bottom: 10px;
}

.lede {
  font-family: var(--font-serif);
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.78;
  color: var(--ink-green);
  max-width: 54ch;
}

.note-col {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  border-left: 1px solid var(--line-strong);
  padding-left: 14px;
  max-width: 26ch;
}

.num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.32em;
  letter-spacing: -0.01em;
  color: var(--cinnabar);
}

.prose { max-width: 72ch; }
.prose p { margin-bottom: 1.05em; }
.prose h2 { margin: 1.4em 0 0.5em; }
.prose h3 { margin: 1.2em 0 0.4em; }
.prose a {
  color: var(--celadon);
  text-decoration-color: rgba(63, 111, 99, 0.45);
  text-underline-offset: 3px;
}
.prose ul { list-style: none; margin-bottom: 1.05em; }
.prose li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 0.4em;
}
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 1px;
  background: var(--clay);
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.6;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  color: var(--stone);
  background: rgba(110, 115, 121, 0.08);
}

.tag--celadon { color: var(--celadon); background: rgba(168, 196, 188, 0.3); }
.tag--moss { color: var(--moss); background: rgba(107, 122, 82, 0.12); }
.tag--clay { color: var(--clay); background: rgba(180, 113, 79, 0.12); }
.tag--gold { color: #8A6F12; background: rgba(201, 162, 39, 0.16); }

/* ---------- 资料卡 ---------- */
.card {
  position: relative;
  background: var(--rice);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  padding: 22px 22px 24px;
  border-radius: var(--radius);
  transition: box-shadow 0.24s ease, border-color 0.24s ease, transform 0.24s ease;
}

.card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.card__label { margin: 0; }

.card__title {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.42;
  margin-bottom: 10px;
  color: var(--ink);
}

.card__body {
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(28, 34, 38, 0.82);
}

.card__meta {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn--primary {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--rice);
}

.btn--primary:hover {
  background: var(--ink-green);
  border-color: var(--ink-green);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink-green);
}

.btn--ghost:hover {
  border-color: var(--celadon);
  color: var(--celadon);
}

.btn--quiet {
  background: transparent;
  border-color: transparent;
  padding-inline: 0;
  color: var(--cinnabar);
}

.btn--quiet:hover { color: var(--ink-green); }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb__item::after {
  content: "/";
  margin-left: 8px;
  color: rgba(110, 115, 121, 0.55);
}

.breadcrumb__item:last-child::after { display: none; }

.breadcrumb__link {
  color: var(--stone);
  text-decoration: none;
}

.breadcrumb__link:hover { color: var(--celadon); }

.breadcrumb__current { color: var(--ink); }

/* ---------- 图片容器 ---------- */
.media {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(150deg, var(--rice-2) 0%, rgba(168, 196, 188, 0.34) 100%);
  box-shadow: var(--shadow-1);
}

.media__inner {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media__cap {
  display: block;
  padding: 9px 13px;
  border-top: 1px solid var(--line);
  background: rgba(246, 242, 234, 0.78);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

/* ---------- 滚动进度 ---------- */
.scroll-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--celadon) 0%, var(--gold) 55%, var(--cinnabar) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 90;
  pointer-events: none;
}

/* ---------- 页头 ---------- */
.site-header {
  position: relative;
  z-index: 60;
  background: var(--rice);
  border-bottom: 1px solid var(--line-strong);
}

.masthead {
  border-top: var(--masthead-rule) solid var(--ink-green);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(246, 242, 234, 0) 100%), var(--rice);
}

.masthead__inner {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding: 16px 24px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--ink);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  background: var(--ink-green);
  color: var(--gold);
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
}

.brand__text {
  display: grid;
  gap: 2px;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.2;
  color: var(--ink);
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.masthead__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
  white-space: nowrap;
}

.masthead__issue {
  padding-right: 14px;
  border-right: 1px solid var(--line-strong);
}

.masthead__year {
  color: var(--celadon);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink-green);
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.nav-toggle__label { display: inline-block; }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background-color 0.2s ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease;
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

/* ---------- 刊头导航 ---------- */
.primary-nav {
  background: linear-gradient(180deg, rgba(168, 196, 188, 0.22) 0%, rgba(168, 196, 188, 0) 100%);
  border-top: 1px solid var(--line);
}

.primary-nav__inner {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding-inline: 24px;
  display: flex;
  align-items: stretch;
  gap: 16px;
}

.primary-nav__rule {
  flex: 0 0 1px;
  width: 1px;
  background: var(--line-strong);
}

.primary-nav__list {
  flex: 1 1 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  max-height: none;
}

.primary-nav__link {
  position: relative;
  display: block;
  padding: 15px 20px 17px;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s ease;
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 9px;
  height: 1px;
  background: var(--celadon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease, background-color 0.22s ease;
}

.primary-nav__link:hover { color: var(--celadon); }
.primary-nav__link:hover::after { transform: scaleX(1); }

.primary-nav__link[aria-current="page"] { color: var(--celadon); }

.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  height: 2px;
  background: var(--cinnabar);
}

/* ---------- 右侧赛事指引抽屉 ---------- */
.guide-dock {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.guide-dock__toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--celadon);
  border: 1px solid var(--ink-green);
  border-radius: var(--radius);
  color: var(--rice);
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.1em;
  cursor: pointer;
  box-shadow: var(--shadow-2);
  transition: background-color 0.2s ease;
}

.guide-dock__toggle:hover { background: var(--ink-green); }

.guide-dock__glyph {
  width: 9px;
  height: 9px;
  border: 1px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.24s ease, background-color 0.24s ease;
}

.guide-dock[data-open] .guide-dock__glyph {
  transform: rotate(45deg) scale(0.72);
  background: var(--gold);
}

.guide-dock__toggle-text { display: inline-block; }

.guide-dock__panel {
  position: absolute;
  right: 0;
  bottom: calc(100% + 12px);
  width: min(304px, calc(100vw - 40px));
  padding: 20px 20px 18px;
  background: var(--rice);
  border: 1px solid var(--ink-green);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.guide-dock[data-open] .guide-dock__panel {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.guide-dock__eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--celadon);
  margin-bottom: 6px;
}

.guide-dock__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
  padding-bottom: 12px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.guide-dock__list {
  display: grid;
  gap: 2px;
}

.guide-dock__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.guide-dock__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.guide-dock__link {
  flex: 1 1 auto;
  padding: 7px 0;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.guide-dock__link:hover {
  color: var(--celadon);
  border-bottom-color: var(--celadon-light);
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 64px;
  background: var(--ink-green);
  color: rgba(246, 242, 234, 0.82);
  border-top: 3px solid var(--gold);
}

.site-footer__inner {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding: 54px 24px 34px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2.1fr);
  gap: 40px;
}

.site-footer__name {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--rice);
  margin-bottom: 8px;
}

.site-footer__sub {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--celadon-light);
  margin-bottom: 16px;
}

.site-footer__note {
  font-size: 13px;
  line-height: 1.75;
  color: rgba(246, 242, 234, 0.58);
  max-width: 34ch;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.site-footer__col-title {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--rice);
  padding-bottom: 9px;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(168, 196, 188, 0.26);
}

.site-footer__list {
  display: grid;
  gap: 8px;
}

.site-footer__link {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(246, 242, 234, 0.76);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer__link:hover,
.site-footer__link:focus-visible { color: var(--gold); }

.site-footer__bar {
  border-top: 1px solid rgba(168, 196, 188, 0.2);
}

.site-footer__bar-inner {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding: 16px 24px 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: rgba(246, 242, 234, 0.62);
}

.site-footer__copy { margin: 0; }

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.site-footer__legal .site-footer__link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
}

.site-footer__icp { margin: 0; }

/* ---------- 显现动效 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--aside { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  body { font-size: 16px; }

  .masthead__inner { padding: 14px 20px 12px; gap: 12px; }

  .masthead__meta { display: none; }

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

  .primary-nav__inner {
    display: block;
    padding-inline: 20px;
  }

  .primary-nav__rule { display: none; }

  .primary-nav__list {
    display: grid;
    grid-template-columns: 1fr;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.28s ease;
  }

  .primary-nav__link {
    padding: 13px 2px;
    border-bottom: 1px solid var(--line);
    font-size: 17px;
  }

  .primary-nav__link::after { display: none; }

  .primary-nav__link[aria-current="page"] {
    padding-left: 10px;
    border-left: 3px solid var(--cinnabar);
  }

  .site-header[data-open] .primary-nav__list {
    max-height: 32rem;
    padding-bottom: 14px;
  }

  .site-header[data-open] .nav-toggle__bars { background: transparent; }

  .site-header[data-open] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
  .site-header[data-open] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

  .section { padding-block: 40px; }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 44px 20px 28px;
  }

  .site-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }

  .site-footer__note { max-width: none; }

  .site-footer__bar-inner { padding: 14px 20px 24px; }
}

@media (max-width: 640px) {
  .shell { padding-inline: 18px; }

  .grid--2,
  .grid--3 { grid-template-columns: 1fr; }

  .brand__name { font-size: 21px; letter-spacing: 0.12em; }
  .brand__mark { width: 40px; height: 40px; font-size: 14px; }
  .brand__sub { font-size: 10.5px; letter-spacing: 0.12em; }

  .site-footer__cols { grid-template-columns: 1fr; }

  .guide-dock { right: 14px; bottom: 16px; }
  .guide-dock__toggle { padding: 11px 14px; font-size: 14px; }
  .guide-dock__panel { width: calc(100vw - 28px); }
}

/* ---------- 减少动效 ---------- */
@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;
  }

  .scroll-progress { display: none; }

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

  .card:hover { transform: none; }
}