/* ==========================================================================
   开云体育 · 共享外壳样式表 /assets/site.css
   侧轨导航 + 深夜赛场配色 + 非对称编辑部版式基础件
   ========================================================================== */

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

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

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

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

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

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

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

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

/* ---------- 2. 变量 ---------- */
:root {
  /* 深海夜色 */
  --deep: #0B1B2B;
  --night: #12293F;
  --ink: #050D16;

  /* 中性矿物层 */
  --mist: #E8ECF0;
  --stone: #8A93A0;
  --paper: #F3EFE6;
  --moss: #6E8B6A;
  --brass: #B98A4B;

  /* 强调层 */
  --lava: #FF6A2B;
  --terra: #C8542A;
  --cyan: #35E0D0;

  /* 描边 */
  --line: rgba(138, 147, 160, 0.26);
  --line-brass: rgba(185, 138, 75, 0.42);
  --line-soft: rgba(232, 236, 240, 0.08);

  /* 字体 */
  --font-display: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-body: "Inter", "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* 字号 */
  --fs-display: clamp(34px, 5vw, 72px);
  --fs-h2: clamp(26px, 3.2vw, 44px);
  --fs-h3: clamp(19px, 2vw, 24px);
  --fs-body: 17px;
  --fs-note: 12px;

  /* 尺度 */
  --rail-w: 248px;
  --gutter: clamp(18px, 4vw, 56px);
  --pad-x: clamp(16px, 3.4vw, 24px);
  --wrap: 1240px;

  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 20px;

  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --dur: 200ms;
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--deep);
  background-image:
    radial-gradient(1100px 620px at 88% -8%, rgba(255, 106, 43, 0.09), transparent 62%),
    radial-gradient(860px 540px at 4% 106%, rgba(53, 224, 208, 0.07), transparent 60%);
  background-attachment: fixed;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 900; letter-spacing: -0.02em; line-height: 1.16; color: var(--paper); }

::selection { background: var(--lava); color: var(--ink); }

strong, b { font-weight: 700; color: var(--paper); }

code, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

/* ---------- 4. 焦点与跳转链接 ---------- */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  left: 12px;
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--lava);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: top var(--dur) var(--ease);
}

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

/* ==========================================================================
   5. 左轨道头部
   ========================================================================== */
.site-rail {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--night);
  border-bottom: 1px solid var(--line);
  color: var(--mist);
}

.site-rail[data-open] {
  border-bottom-color: rgba(255, 106, 43, 0.38);
  box-shadow: 0 20px 44px rgba(5, 13, 22, 0.62);
}

/* --- 轨道顶部 --- */
.rail__top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 13px var(--pad-x);
  border-bottom: 1px solid var(--line-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--lava), var(--terra));
  color: #0B1B2B;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand__name { white-space: nowrap; }

.brand__ver {
  padding: 1px 9px;
  border: 1px solid rgba(110, 139, 106, 0.55);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #9DBB99;
  white-space: nowrap;
}

/* --- 移动端菜单按钮 --- */
.nav-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 14px;
  border: 1px solid var(--line-brass);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.nav-toggle__glyph {
  position: relative;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}

.nav-toggle__glyph::before,
.nav-toggle__glyph::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}

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

/* --- 导航 --- */
.rail__nav { display: none; padding: 16px var(--pad-x) 6px; }

.rail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 9px;
}

.nav-list { display: flex; flex-direction: column; gap: 3px; }

.nav-list__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--mist);
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.nav-list__link:hover {
  background: rgba(232, 236, 240, 0.05);
  border-color: var(--line);
  transform: translateX(3px);
}

.nav-list__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}

.nav-list__link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(255, 106, 43, 0.22), rgba(255, 106, 43, 0.03));
  border-color: rgba(255, 106, 43, 0.36);
  color: var(--paper);
  font-weight: 700;
}

.nav-list__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 9px;
  bottom: 9px;
  width: 3px;
  border-radius: 3px;
  background: var(--cyan);
}

.nav-list__link[aria-current="page"] .nav-list__idx { color: var(--lava); }

/* --- 今日看点 / 跟队 --- */
.rail__meta {
  display: none;
  padding: 16px var(--pad-x) 18px;
  border-top: 1px solid var(--line-soft);
}

.rail__more {
  display: block;
  padding: 8px 12px;
  margin-bottom: 16px;
  border: 1px solid var(--line-brass);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.rail__more:hover { border-color: var(--lava); background: rgba(255, 106, 43, 0.08); }

.team-chips { display: flex; flex-wrap: wrap; gap: 6px; }

.team-chip {
  display: inline-block;
  padding: 4px 11px;
  border: 1px solid var(--line-brass);
  border-radius: 999px;
  background: rgba(185, 138, 75, 0.08);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* --- 版本切换器 --- */
.ver-switch {
  display: none;
  flex-direction: column;
  padding: 16px var(--pad-x) 18px;
  border-top: 1px solid var(--line-soft);
}

.ver-switch__row {
  display: flex;
  gap: 4px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 13, 22, 0.62);
}

.ver-btn {
  flex: 1 1 0;
  padding: 7px 8px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.ver-btn:hover { color: var(--mist); }

.ver-btn[aria-pressed="true"] {
  background: linear-gradient(135deg, var(--cyan), #1FBCAE);
  color: #04201E;
  font-weight: 700;
}

/* --- 阅读进度 --- */
.rail__progress {
  height: 3px;
  background: rgba(232, 236, 240, 0.07);
  overflow: hidden;
}

.rail__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--lava), var(--cyan));
}

/* --- 焕新版：强调色切到荧光青 --- */
html[data-version="refresh"] .brand__mark {
  background: linear-gradient(140deg, var(--cyan), #1FBCAE);
}

html[data-version="refresh"] .nav-list__link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(53, 224, 208, 0.20), rgba(53, 224, 208, 0.03));
  border-color: rgba(53, 224, 208, 0.38);
}

html[data-version="refresh"] .nav-list__link[aria-current="page"] .nav-list__idx { color: var(--cyan); }

html[data-version="refresh"] .eyebrow { color: var(--cyan); }

/* ==========================================================================
   6. 页脚
   ========================================================================== */
.site-foot {
  margin-top: clamp(40px, 6vw, 88px);
  background: var(--ink);
  border-top: 1px solid var(--line);
  color: var(--mist);
}

.foot__grid {
  width: min(var(--wrap), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) 0 clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
}

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

.foot__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: -0.02em;
  color: var(--paper);
}

.foot__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
  max-width: 34ch;
}

.foot__title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
  margin-bottom: 14px;
}

.foot__list { display: flex; flex-direction: column; gap: 9px; }

.foot__list a {
  display: inline-block;
  font-size: 15px;
  color: var(--mist);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.foot__list a:hover { color: var(--cyan); transform: translateX(4px); }

.foot__contact { display: flex; flex-direction: column; gap: 12px; }

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

.foot__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--stone);
  min-width: 34px;
}

.foot__v {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  word-break: break-all;
}

.copy-btn {
  padding: 3px 10px;
  border: 1px solid var(--line-brass);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--brass);
  transition: border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}

.copy-btn:hover { border-color: var(--cyan); color: var(--cyan); }

.copy-btn[data-copied="true"] {
  border-color: rgba(110, 139, 106, 0.7);
  color: #9DBB99;
  background: rgba(110, 139, 106, 0.12);
}

.copy-msg {
  min-height: 1.4em;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.foot__bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 26px;
  padding: 16px var(--gutter) 20px;
  border-top: 1px solid rgba(138, 147, 160, 0.18);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   7. 通用组件
   ========================================================================== */

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform var(--dur) var(--ease),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.btn--lava {
  background: linear-gradient(135deg, var(--lava), var(--terra));
  color: #12070A;
}

.btn--lava:hover { transform: translateY(-2px); }

.btn--ghost {
  border-color: var(--line-brass);
  color: var(--paper);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
}

/* --- 面包屑 --- */
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.crumb a { color: var(--stone); transition: color var(--dur) var(--ease); }
.crumb a:hover { color: var(--cyan); }
.crumb__sep { color: var(--brass); }

/* --- 正文容器 --- */
.prose {
  max-width: 68ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--mist);
}

.prose--wide { max-width: 82ch; }

.prose h2,
.prose h3 {
  margin: 1.7em 0 0.6em;
  font-family: var(--font-display);
  color: var(--paper);
}

.prose h2 { font-size: var(--fs-h2); font-weight: 900; letter-spacing: -0.02em; }
.prose h3 { font-size: var(--fs-h3); font-weight: 800; letter-spacing: -0.01em; }

.prose p { margin: 0 0 1.15em; }

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25em;
  padding-left: 1.35em;
  list-style: disc;
}

.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.5em; }

.prose blockquote {
  margin: 1.5em 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--brass);
  color: var(--stone);
}

/* --- 区块头 / 注释 --- */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: clamp(18px, 2.4vw, 30px);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lava);
}

.vnote {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
  user-select: none;
}

/* --- 网格 --- */
.grid {
  display: grid;
  gap: clamp(16px, 2vw, 28px);
  grid-template-columns: 1fr;
}

.grid--2 { grid-template-columns: 1fr; }
.grid--asym { grid-template-columns: 1fr; }
.grid--asym--rev { grid-template-columns: 1fr; }

/* --- 图片容器 --- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line-brass);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, var(--night), var(--deep) 58%, var(--ink));
  aspect-ratio: 3 / 2;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.media::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(53, 224, 208, 0));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}

.media:hover {
  transform: translateY(-4px);
  border-color: var(--lava);
}

.media:hover::after { transform: scaleX(1); }

.media--3x2 { aspect-ratio: 3 / 2; }
.media--4x5 { aspect-ratio: 4 / 5; }
.media--21x9 { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }

.media__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 14px 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
  background: linear-gradient(to top, rgba(5, 13, 22, 0.92), rgba(5, 13, 22, 0));
}

/* --- 标签 --- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border: 1px solid var(--line-brass);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--brass);
  white-space: nowrap;
}

.tag--lava {
  border-color: rgba(255, 106, 43, 0.5);
  background: rgba(255, 106, 43, 0.1);
  color: var(--lava);
}

.tag--terra {
  border-color: rgba(200, 84, 42, 0.55);
  background: rgba(200, 84, 42, 0.12);
  color: #E3794F;
}

.tag--moss {
  border-color: rgba(110, 139, 106, 0.55);
  background: rgba(110, 139, 106, 0.12);
  color: #9DBB99;
}

.tag--cyan {
  border-color: rgba(53, 224, 208, 0.45);
  background: rgba(53, 224, 208, 0.1);
  color: var(--cyan);
}

/* --- 折叠档案卡 --- */
.panel {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--night);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease);
}

.panel + .panel { margin-top: 10px; }

.panel:hover { border-color: var(--line-brass); }

.panel > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--paper);
  transition: background var(--dur) var(--ease);
}

.panel > summary::-webkit-details-marker { display: none; }

.panel > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--lava);
}

.panel[open] > summary::after { content: "\2013"; }

.panel > summary:hover { background: rgba(232, 236, 240, 0.04); }

.panel__body {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
  max-width: 68ch;
}

/* --- 数据指标 --- */
.stat { display: flex; flex-direction: column; gap: 3px; }

.stat__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

/* --- 进入视口显现 --- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   8. 响应式
   ========================================================================== */
@media (max-width: 479px) {
  .brand__ver { display: none; }
}

@media (min-width: 720px) {
  .foot__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .grid--asym { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
  .grid--asym--rev { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
}

@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }

  .site-rail {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--rail-w);
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    border-bottom: 0;
    border-right: 1px solid var(--line);
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: rgba(138, 147, 160, 0.4) transparent;
  }

  .rail__top {
    flex-wrap: wrap;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-toggle { display: none; }

  .brand { font-size: 19px; }

  .rail__nav,
  .rail__meta { display: block; padding-left: 20px; padding-right: 20px; }

  .rail__nav { padding-top: 18px; padding-bottom: 4px; }

  .ver-switch {
    display: flex;
    flex-direction: column;
    margin-top: auto;
    padding-left: 20px;
    padding-right: 20px;
  }

  .foot__grid { grid-template-columns: 1.4fr 1fr 1fr 1.4fr; }
  .foot__bar { justify-content: space-between; padding-inline: var(--gutter); max-width: var(--wrap); margin-inline: auto; }
}

@media (min-width: 1440px) {
  :root { --rail-w: 268px; }
}

/* ==========================================================================
   9. 降低动效
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal { opacity: 1; transform: none; }
  .media:hover { transform: none; }
  .btn:hover { transform: none; }
  .nav-list__link:hover { transform: none; }
  .foot__list a:hover { transform: none; }
}