/* ==========================================================================
   乐鱼赛场 · 共享样式表 /assets/site.css
   设计语言：文字建筑 —— 深海蓝与暖纸白交替成章，荧焰橙只给比分与入口
   ========================================================================== */

/* 1. 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 { 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; background: none; border: 0; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }

/* 2. 变量 ----------------------------------------------------------------- */
:root {
  --deep-sea: #0B1F3A;
  --night-blue: #061428;
  --relay-blue: #1B4B7D;
  --flame: #FF6A1F;
  --flame-soft: #FFA24B;
  --arena-green: #16B67E;
  --paper: #F5F1E8;
  --data-white: #FFFFFF;
  --mist: #A9B8CB;
  --ink: #101418;

  --line: rgba(169, 184, 203, .30);
  --line-soft: rgba(169, 184, 203, .16);
  --line-ink: rgba(11, 31, 58, .16);

  --font-display: "Barlow Condensed", "Oswald", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;

  --header-h: 76px;
  --gut: 24px;
  --maxw: 1280px;
  --fs-body: 17px;
  --lh-body: 1.75;
  --shadow-card: 0 14px 28px rgba(6, 20, 40, .18);
  --ease: cubic-bezier(.2, .7, .3, 1);
}

@media (max-width: 960px) {
  :root { --header-h: 64px; --gut: 20px; }
}

@media (max-width: 720px) {
  :root { --fs-body: 15px; --lh-body: 1.8; }
}

/* 3. 基础排版 -------------------------------------------------------------- */
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.05;
  color: inherit;
  text-wrap: balance;
}

h1 { font-size: clamp(2.25rem, 6vw, 5rem); font-weight: 900; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.75rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.5rem); }
h4 { font-size: 1.0625rem; letter-spacing: 0; }

p { text-wrap: pretty; }
strong, b { font-weight: 700; }
small { font-size: 13px; }

.num,
[data-num] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

::selection { background: var(--flame); color: var(--night-blue); }

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--flame);
  outline-offset: 2px;
}

html.nav-open { overflow: hidden; }

/* 4. 布局容器与分区 -------------------------------------------------------- */
.container {
  width: min(var(--maxw), 100% - (var(--gut) * 2));
  margin-inline: auto;
}

.container--narrow { width: min(760px, 100% - (var(--gut) * 2)); }
.container--wide { width: min(1440px, 100% - (var(--gut) * 2)); }

.page-shell { padding-top: var(--header-h); }

.hero--flush {
  margin-top: calc(var(--header-h) * -1);
  padding-top: var(--header-h);
}

.section { padding: 96px 0; }
.section--tight { padding: 64px 0; }
.section--dark { background-color: var(--deep-sea); color: var(--paper); }
.section--night { background-color: var(--night-blue); color: var(--paper); }
.section--paper { background-color: var(--paper); color: var(--ink); }
.section--white { background-color: var(--data-white); color: var(--ink); }

.grid { display: grid; gap: 24px; }
.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)); }

@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

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

/* 5. 通用排版组件 ---------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--flame);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background-color: currentColor;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.02;
  letter-spacing: -.02em;
}

.lede {
  max-width: 62ch;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.7;
  color: inherit;
  opacity: .86;
}

.prose { max-width: 68ch; }
.prose p + p { margin-top: 1.15em; }
.prose h2, .prose h3 { margin-top: 1.6em; margin-bottom: .5em; }
.prose ul, .prose ol { padding-left: 1.2em; margin: 1em 0; }
.prose li { margin-top: .4em; }

.tickline {
  position: relative;
  height: 1px;
  margin: 24px 0;
  background-color: var(--line);
}

.tickline::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, var(--mist) 0 1px, transparent 1px 16px);
  opacity: .5;
}

.note {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* 6. 按钮 ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .06em;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease);
}

.btn--primary {
  background-color: var(--flame);
  border-color: var(--flame);
  color: var(--night-blue);
}

.btn--primary:hover { background-color: var(--flame-soft); border-color: var(--flame-soft); transform: translateY(-2px); }

.btn--ghost {
  background-color: transparent;
  border-color: rgba(169, 184, 203, .45);
  color: var(--paper);
}

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

.btn--line {
  background-color: transparent;
  border-color: var(--deep-sea);
  color: var(--deep-sea);
}

.btn--line:hover { background-color: var(--deep-sea); color: var(--paper); transform: translateY(-2px); }

.btn--sm { padding: 9px 14px; font-size: 13px; }

/* 7. 跳转链接与进度条 ------------------------------------------------------ */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 16px;
  background-color: var(--flame);
  color: var(--night-blue);
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  border: 1px solid var(--night-blue);
  transform: translateY(-180%);
  transition: transform .18s var(--ease);
}

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

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background-color: rgba(169, 184, 203, .18);
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background-color: var(--flame);
}

/* 8. 页头 ----------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  color: var(--paper);
  background-color: transparent;
  border-bottom: 1px solid rgba(169, 184, 203, .22);
  transition: background-color .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.site-header[data-scrolled="true"],
.site-header[data-nav-open="true"] {
  background-color: var(--deep-sea);
  border-bottom-color: rgba(255, 106, 31, .5);
  box-shadow: 0 12px 30px rgba(6, 20, 40, .35);
}

.header-frame { position: relative; }

.header-main {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 40px);
  min-height: var(--header-h);
}

/* 品牌锁定 */
.brand {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding-left: 14px;
  border-left: 3px solid var(--flame);
  color: var(--paper);
  text-decoration: none;
}

.brand__mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  letter-spacing: .06em;
  line-height: 1;
  transition: color .18s var(--ease);
}

.brand__tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .34em;
  line-height: 1;
  color: var(--flame-soft);
}

.brand:hover .brand__mark { color: var(--flame-soft); }

/* 桌面导航 */
.site-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.nav-list { display: flex; align-items: center; gap: 2px; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px 12px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .04em;
  color: rgba(245, 241, 232, .86);
  text-decoration: none;
  transition: color .18s var(--ease), background-color .18s var(--ease);
}

.nav-link__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--mist);
  transition: color .18s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  background-color: var(--flame);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .2s var(--ease);
}

.nav-link:hover { color: var(--paper); background-color: rgba(255, 106, 31, .10); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link:hover .nav-link__num { color: var(--flame); }

.nav-link[aria-current="page"] { color: var(--flame-soft); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-link[aria-current="page"] .nav-link__num { color: var(--flame); }

.nav-extra { display: none; }

.header-cta { flex: 0 0 auto; }

/* 菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid rgba(169, 184, 203, .45);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 18px;
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 比分摘要条 */
.score-ticker {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  background-color: var(--night-blue);
  border-top: 1px solid rgba(255, 106, 31, .22);
  transition: max-height .3s var(--ease), opacity .3s var(--ease);
}

.site-header[data-scrolled="true"] .score-ticker { max-height: 60px; opacity: 1; }

.score-ticker__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  min-height: 54px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.ticker-tag {
  padding: 4px 9px;
  border: 1px solid rgba(255, 106, 31, .5);
  color: var(--flame-soft);
  letter-spacing: .14em;
}

.ticker-match {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  color: var(--data-white);
}

.ticker-num { font-size: 19px; font-weight: 700; letter-spacing: .02em; }
.ticker-sep { color: var(--flame); }

.ticker-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--data-white);
}

.ticker-note { color: var(--mist); }

/* 状态点 */
.status-dot {
  flex: 0 0 auto;
  display: inline-block;
  width: 7px;
  height: 7px;
  background-color: var(--arena-green);
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

/* 9. 移动 / 平板导航 ------------------------------------------------------- */
@media (max-width: 960px) {
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 26px;
    margin-left: 0;
    padding: calc(var(--header-h) + 30px) var(--gut) 44px;
    background-color: var(--night-blue);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .2s var(--ease), visibility .2s linear;
  }

  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    justify-content: flex-start;
    padding: 16px 0;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: .02em;
    color: var(--paper);
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-link::after { display: none; }
  .nav-link__num { font-size: 11px; color: var(--flame); }
  .nav-link:hover,
  .nav-link:focus-visible { background-color: rgba(255, 106, 31, .10); padding-left: 12px; }

  .nav-link[aria-current="page"] {
    color: var(--flame-soft);
    border-left: 3px solid var(--flame);
    padding-left: 12px;
  }

  .nav-extra {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid var(--line-soft);
  }

  .nav-extra__note {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .12em;
    color: var(--mist);
  }

  .nav-extra .btn { align-self: flex-start; }

  .score-ticker { display: none; }
}

/* 10. 页脚 ---------------------------------------------------------------- */
.site-footer {
  position: relative;
  padding: 72px 0 32px;
  background-color: var(--deep-sea);
  color: var(--paper);
  border-top: 1px solid rgba(255, 106, 31, .35);
}

.footer-scale {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, rgba(255, 162, 75, .6) 0 1px, transparent 1px 28px);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.6fr) repeat(4, minmax(120px, 1fr));
  gap: 44px 32px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 36ch;
}

.footer-logo {
  padding-left: 14px;
  border-left: 3px solid var(--flame);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: .06em;
  line-height: 1.1;
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .34em;
  color: var(--flame-soft);
}

.footer-intro {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.footer-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--paper);
}

.footer-cta { align-self: flex-start; margin-top: 6px; }

.footer-col__title {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--flame-soft);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.footer-link {
  display: inline-block;
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(245, 241, 232, .84);
  text-decoration: none;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.footer-link:hover { color: var(--flame-soft); padding-left: 8px; }

.footer-note {
  margin-top: 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 32px;
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; max-width: 48ch; }
}

@media (max-width: 560px) {
  .site-footer { padding: 56px 0 28px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .footer-legal { margin-top: 40px; }
}

/* 11. 内容组件 ------------------------------------------------------------ */
/* 数据卡片 */
.data-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  background-color: var(--data-white);
  color: var(--ink);
  border: 1px solid var(--line-ink);
  border-radius: 0;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}

.data-card:hover,
.data-card:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
  border-color: var(--flame);
}

.data-card__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--relay-blue);
}

.data-card__value {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--deep-sea);
}

.data-card__value--flame { color: var(--flame); }
.data-card__value--green { color: var(--arena-green); }

.data-card__meta {
  font-size: 13px;
  line-height: 1.6;
  color: var(--relay-blue);
}

.data-card--dark {
  background-color: var(--deep-sea);
  color: var(--paper);
  border-color: var(--line);
}

.data-card--dark .data-card__label { color: var(--flame-soft); }
.data-card--dark .data-card__value { color: var(--data-white); }
.data-card--dark .data-card__meta { color: var(--mist); }

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 9px;
  background-color: rgba(255, 106, 31, .14);
  border: 1px solid rgba(255, 106, 31, .4);
  color: var(--flame);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  line-height: 1.5;
}

.tag--green {
  background-color: rgba(22, 182, 126, .14);
  border-color: rgba(22, 182, 126, .45);
  color: var(--arena-green);
}

.tag--mist {
  background-color: rgba(169, 184, 203, .14);
  border-color: var(--line);
  color: var(--relay-blue);
}

/* 图片容器（页面阶段放占位或 <img>） */
.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background-color: var(--night-blue);
  border: 1px solid var(--line);
  border-radius: 0;
}

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

.img-frame--21x9 { aspect-ratio: 21 / 9; }
.img-frame--16x9 { aspect-ratio: 16 / 9; }
.img-frame--4x3 { aspect-ratio: 4 / 3; }
.img-frame--1x1 { aspect-ratio: 1 / 1; }

.img-frame--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 44px), calc(100% - 44px) 100%, 0 100%);
}

.img-frame--placeholder {
  background-color: var(--relay-blue);
  background-image:
    repeating-linear-gradient(0deg, rgba(169, 184, 203, .18) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(169, 184, 203, .18) 0 1px, transparent 1px 32px);
}

.img-frame__overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px;
  background-image: linear-gradient(to top, rgba(6, 20, 40, .92), rgba(6, 20, 40, 0));
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

@media (max-width: 900px) {
  .img-frame--cut { clip-path: none; }
}

/* 面包屑 */
.breadcrumb {
  padding: 18px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--relay-blue);
}

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

.breadcrumb__list li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--mist);
}

.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--flame); }
.breadcrumb [aria-current="page"] { color: var(--deep-sea); }

/* 显现 */
.js [data-reveal] {
  opacity: 0;
  transition: opacity .16s linear;
}

.js [data-reveal].is-visible { opacity: 1; }

/* 12. 无障碍与降级 --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

  .data-card:hover,
  .data-card:focus-within,
  .btn:hover { transform: none; }

  .footer-link:hover { padding-left: 0; }

  .js [data-reveal] { opacity: 1; }
}