/* ============================================================
   易倍赛场 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 按钮 / 容器 / 基础组件
   ============================================================ */

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

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

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

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

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

button { font: inherit; color: inherit; }

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

/* ---------- 变量 ---------- */
:root {
  --night: #0B1F1A;
  --corridor: #10322A;
  --blue: #2D7DFF;
  --cyan: #00D1FF;
  --orange: #FF7A1A;
  --amber: #FFC24B;
  --moss: #5C7A63;
  --clay: #B4553A;
  --bone: #F2EDE3;
  --rock: #A9A79E;
  --hot: #F7FFFB;
  --ink: #14100C;

  --line: rgba(242, 237, 227, .14);
  --line-strong: rgba(242, 237, 227, .3);

  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;

  --rail: 264px;
  --ticker-h: 60px;
  --shell-max: 1240px;
  --gutter: clamp(18px, 4vw, 44px);
  --prose: 640px;

  --shadow-hard: 6px 6px 0 rgba(0, 0, 0, .45);
  --shadow-hard-sm: 3px 3px 0 rgba(0, 0, 0, .45);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 中文排版基线 ---------- */
body {
  min-height: 100vh;
  margin: 0;
  background: var(--night);
  color: var(--bone);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  padding-bottom: calc(var(--ticker-h) + 10px);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--hot);
  text-wrap: balance;
}

h1 { font-size: clamp(30px, 5vw, 46px); }
h2 { font-size: clamp(24px, 3.4vw, 34px); }
h3 { font-size: clamp(19px, 2.4vw, 23px); }

p { text-wrap: pretty; }

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

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

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

.site-main {
  padding-top: 88px;
  padding-bottom: 40px;
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--orange);
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  border: 2px solid var(--ink);
  transform: translateY(-220%);
  transition: transform .2s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ============================================================
   头部
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(11, 31, 26, .88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}

.site-header[data-stuck] {
  background: var(--night);
  border-bottom-color: var(--line-strong);
  box-shadow: 0 14px 34px -24px rgba(0, 0, 0, .95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 11px var(--gutter);
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid var(--orange);
  background: var(--corridor);
  color: var(--cyan);
  box-shadow: var(--shadow-hard-sm);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .04em;
  color: var(--hot);
}

.brand-tag {
  display: none;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--rock);
  white-space: nowrap;
}

/* 移动导航按钮 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  background: var(--corridor);
  color: var(--bone);
  border: 2px solid var(--line-strong);
  font-size: 13px;
  letter-spacing: .12em;
  cursor: pointer;
  box-shadow: var(--shadow-hard-sm);
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

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

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background .2s var(--ease);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* 导航本体 —— 移动端为底部上滑面板 */
.site-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 210;
  max-height: 84vh;
  overflow-y: auto;
  padding: 20px var(--gutter) calc(20px + env(safe-area-inset-bottom, 0px));
  background: var(--corridor);
  border-top: 2px solid var(--orange);
  box-shadow: 0 -24px 48px -28px rgba(0, 0, 0, .95);
  transform: translateY(115%);
  transition: transform .34s var(--ease);
}

.site-nav[data-open] {
  transform: translateY(0);
}

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

.nav-link {
  display: flex;
  align-items: center;
  padding: 13px 14px;
  border-left: 3px solid transparent;
  color: var(--bone);
  font-size: 15px;
  letter-spacing: .06em;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.nav-link:hover {
  color: var(--hot);
  background: rgba(45, 125, 255, .1);
  border-left-color: var(--blue);
}

.nav-link[aria-current="page"] {
  color: var(--hot);
  background: rgba(255, 122, 26, .14);
  border-left-color: var(--orange);
}

.nav-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  padding: 13px 18px;
  background: var(--orange);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  transition: transform .18s var(--ease), background .2s var(--ease), box-shadow .18s var(--ease);
}

.nav-cta:hover {
  background: var(--amber);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .5);
}

.nav-cta:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

/* ---------- 桌面：左侧竖向导轨 ---------- */
@media (min-width: 1120px) {
  body {
    padding-left: var(--rail);
  }

  .site-main {
    padding-top: 56px;
  }

  .site-header {
    top: 0;
    bottom: 0;
    right: auto;
    width: var(--rail);
    background: rgba(11, 31, 26, .34);
    border-bottom: 0;
    border-right: 1px solid var(--line);
    backdrop-filter: blur(10px) saturate(120%);
    -webkit-backdrop-filter: blur(10px) saturate(120%);
  }

  .site-header[data-stuck] {
    background: var(--night);
    border-right-color: var(--line-strong);
    box-shadow: none;
  }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 26px;
    height: 100%;
    max-width: none;
    padding: 28px 22px;
  }

  .brand-tag {
    display: block;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    flex: 1;
    display: flex;
    flex-direction: column;
    max-height: none;
    overflow: visible;
    padding: 0;
    background: transparent;
    border-top: 0;
    box-shadow: none;
    transform: none;
    transition: none;
  }

  .nav-link {
    padding: 11px 12px;
    font-size: 14.5px;
  }

  .nav-cta {
    margin-top: auto;
  }
}

/* ============================================================
   底部常驻比分条
   ============================================================ */
.live-ticker {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 195;
  background: rgba(11, 31, 26, .96);
  border-top: 2px solid var(--orange);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

@media (min-width: 1120px) {
  .live-ticker {
    left: var(--rail);
  }
}

.ticker-rail {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: var(--ticker-h);
  padding: 8px var(--gutter);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}

.ticker-rail::-webkit-scrollbar { display: none; }

.ticker-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  background: rgba(92, 122, 99, .28);
  border-left: 3px solid var(--moss);
  color: var(--bone);
  font-size: 12px;
  letter-spacing: .1em;
  white-space: nowrap;
}

.ticker-dot {
  width: 7px;
  height: 7px;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 26, .22);
  animation: ticker-pulse 1.8s var(--ease) infinite;
}

@keyframes ticker-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.ticker-list {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: 0 0 auto;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  font-size: 13px;
  color: var(--rock);
}

.ticker-pair {
  color: var(--bone);
}

.ticker-score {
  font-family: var(--mono);
  font-size: 19px;
  font-weight: 700;
  line-height: 1;
  color: var(--hot);
}

.ticker-sep {
  font-family: var(--mono);
  color: var(--moss);
}

.ticker-clock {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  padding-left: 6px;
  border-left: 1px solid var(--line);
}

.ticker-toggle {
  position: sticky;
  right: 0;
  flex: 0 0 auto;
  margin-left: auto;
  padding: 7px 14px;
  background: var(--corridor);
  color: var(--bone);
  border: 2px solid var(--line-strong);
  font-size: 12.5px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.ticker-toggle:hover,
.ticker-toggle[aria-expanded="true"] {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--hot);
}

.ticker-detail[hidden] {
  display: none;
}

.ticker-detail {
  border-top: 1px solid var(--line);
  background: var(--corridor);
}

.ticker-detail-inner {
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 16px var(--gutter) 20px;
}

.ticker-panel-title {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--hot);
  letter-spacing: .06em;
  margin-bottom: 10px;
}

.ticker-spark {
  width: 100%;
  height: 62px;
}

.spark-line {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke-dashoffset .9s var(--ease);
}

.ticker-legend {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--rock);
  letter-spacing: .04em;
}

.ticker-legend b {
  color: var(--hot);
  font-weight: 700;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  margin-top: clamp(56px, 9vw, 110px);
  background: var(--corridor);
  border-top: 1px solid var(--line-strong);
}

.site-footer::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--orange) 0 20%,
    var(--blue) 20% 52%,
    var(--cyan) 52% 68%,
    var(--moss) 68% 84%,
    var(--clay) 84% 100%
  );
}

.footer-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-block: 42px;
}

@media (min-width: 640px) {
  .footer-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .footer-shell {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 44px;
    padding-block: 64px;
  }
}

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

.footer-logo {
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 700;
  color: var(--hot);
  letter-spacing: .06em;
  padding-left: 12px;
  border-left: 4px solid var(--orange);
}

.footer-tag {
  font-size: 14px;
  color: var(--bone);
  letter-spacing: .03em;
}

.footer-meta {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--rock);
}

.footer-title {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .22em;
  color: var(--moss);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
  font-size: 14px;
}

.footer-list a {
  display: inline-block;
  color: var(--bone);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.footer-list a:hover {
  color: var(--hot);
  border-bottom-color: var(--orange);
}

.footer-contact li {
  color: var(--rock);
  font-size: 13.5px;
  overflow-wrap: anywhere;
}

.footer-contact li:first-child {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
}

.footer-base {
  border-top: 1px solid var(--line);
}

.footer-base-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-block: 18px;
}

/* ============================================================
   通用按钮 / 标签 / 卡片 / 网格 / 正文
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .07em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .18s var(--ease), background .2s var(--ease),
              color .2s var(--ease), border-color .2s var(--ease), box-shadow .18s var(--ease);
}

.btn-primary {
  background: var(--orange);
  color: var(--ink);
  border-color: var(--ink);
  box-shadow: var(--shadow-hard-sm);
}

.btn-primary:hover {
  background: var(--amber);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, .5);
}

.btn-primary:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

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

.btn-ghost:hover {
  color: var(--hot);
  border-color: var(--cyan);
  background: rgba(0, 209, 255, .08);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  background: rgba(92, 122, 99, .26);
  color: var(--bone);
  border-left: 3px solid var(--moss);
}

.tag-moss { border-left-color: var(--moss); }
.tag-clay { border-left-color: var(--clay); }
.tag-amber { border-left-color: var(--amber); }

.card {
  padding: 22px;
  background: var(--corridor);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
}

.panel {
  padding: 20px;
  background: rgba(16, 50, 42, .55);
  border: 1px solid var(--line-strong);
}

.grid {
  display: grid;
  gap: var(--gap, 20px);
  grid-template-columns: 1fr;
}

.grid-2, .grid-3, .grid-4 { display: grid; gap: var(--gap, 20px); }

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1000px) {
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.split {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  grid-template-columns: 1fr;
}

@media (min-width: 1000px) {
  .split {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* 大号等宽数据 */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-value {
  font-family: var(--mono);
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: var(--hot);
  letter-spacing: -.02em;
}

.stat-label {
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--rock);
}

/* 陶土旁注 */
.note-rail {
  border-left: 3px solid var(--clay);
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

/* 页头与面包屑 */
.page-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-block: clamp(28px, 5vw, 56px);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .26em;
  color: var(--cyan);
}

.crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--rock);
}

.crumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.crumb-list li + li::before {
  content: "/";
  color: var(--moss);
}

.crumb-list a:hover {
  color: var(--hot);
}

/* 正文宽栏 */
.prose {
  max-width: var(--prose);
  font-size: 17px;
  line-height: 1.85;
  color: var(--bone);
}

.prose p + p {
  margin-top: 1.1em;
}

.prose h2 {
  margin-top: 2.2em;
  margin-bottom: .6em;
}

.prose h3 {
  margin-top: 1.8em;
  margin-bottom: .5em;
}

.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(0, 209, 255, .4);
}

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

/* ---------- 图片占位容器（共享） ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(45, 125, 255, .18), rgba(11, 31, 26, .6)),
    var(--corridor);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
}

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

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

@media (max-width: 520px) {
  .media--wide { aspect-ratio: 16 / 9; }
}

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  transition: opacity .55s var(--ease), transform .55s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

html[data-js="on"] [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}

html[data-js="on"] [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 无障碍：减少动效 ---------- */
@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="on"] [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .site-nav {
    transition: none;
  }
}