/* ============================================================
   乐鱼赛事站 · 共享样式表 /assets/site.css
   深海蓝 + 暖纸色双底座 · 切角面板 · 等宽数字 · 12° 斜线
   ============================================================ */

/* ---------- 1. 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, h5, h6,
p, ul, ol, li, figure, blockquote, address, dl, dd { margin: 0; padding: 0; }

ul, ol { list-style: none; }

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

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

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

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

/* ---------- 2. 设计令牌 ---------- */
:root {
  --ink-night: #0A1D33;
  --deep-sea: #123A63;
  --neon-cyan: #35F0D0;
  --coral: #FF6B4A;
  --paper: #F6F1E7;
  --paper-white: #FFFDF8;
  --graphite: #2C3540;
  --mist: #8FA6BF;
  --violet: #7B5CFF;
  --mist-cyan: #DFF7F2;
  --amber: #FFC24B;

  --line: rgba(44, 53, 64, 0.16);
  --line-dark: rgba(143, 166, 191, 0.26);

  --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --shell: min(1280px, calc(100% - 48px));
  --cut: 16px;
  --gap: clamp(16px, 2vw, 26px);
  --ease: cubic-bezier(0.22, 0.68, 0.32, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(44, 53, 64, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 53, 64, 0.045) 1px, transparent 1px);
  background-size: 34px 34px;
  color: var(--graphite);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  color: var(--ink-night);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(32px, 5.2vw, 56px); font-weight: 900; }
h2 { font-size: clamp(24px, 3.2vw, 34px); }
h3 { font-size: clamp(18px, 2vw, 22px); }
h4 { font-size: 17px; }

::selection { background: var(--neon-cyan); color: var(--ink-night); }

/* ---------- 4. 焦点与可访问性 ---------- */
:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 2px;
  border-radius: 2px;
}

.ly-skip {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--ink-night);
  background: var(--coral);
  border-radius: 2px;
  transition: top 0.18s var(--ease);
}

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

/* ---------- 5. 按钮、标签、标签胶囊 ---------- */
.ly-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.ly-btn--primary {
  color: var(--ink-night);
  background: var(--coral);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.ly-btn--primary:hover { background: #FF8468; transform: translateY(-2px); }

.ly-btn--ghost {
  color: var(--paper);
  border-color: rgba(246, 241, 231, 0.42);
}

.ly-btn--ghost:hover { color: var(--neon-cyan); border-color: var(--neon-cyan); }

.ly-link-quiet {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--mist);
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(143, 166, 191, 0.4);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.ly-link-quiet:hover { color: var(--paper); border-color: var(--neon-cyan); }

.ly-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 3px 11px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--deep-sea);
  background: var(--mist-cyan);
  border: 1px solid currentColor;
  border-radius: 999px;
}

.ly-tag--live {
  color: var(--neon-cyan);
  background: rgba(10, 29, 51, 0.9);
  border-color: rgba(53, 240, 208, 0.55);
}

.ly-tag--action {
  color: var(--ink-night);
  background: var(--coral);
  border-color: var(--coral);
}

.ly-tag--alert {
  color: var(--ink-night);
  background: var(--amber);
  border-color: var(--amber);
}

.ly-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--deep-sea);
}

/* ---------- 6. 容器与栅格 ---------- */
.ly-container {
  width: var(--shell);
  margin-inline: auto;
}

.ly-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.ly-span-3 { grid-column: span 3; }
.ly-span-4 { grid-column: span 4; }
.ly-span-5 { grid-column: span 5; }
.ly-span-6 { grid-column: span 6; }
.ly-span-7 { grid-column: span 7; }
.ly-span-8 { grid-column: span 8; }
.ly-span-12 { grid-column: span 12; }

/* ---------- 7. 面包屑 ---------- */
.ly-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 6px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--deep-sea);
}

.ly-breadcrumb a {
  color: var(--deep-sea);
  border-bottom: 1px solid rgba(18, 58, 99, 0.28);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.ly-breadcrumb a:hover { color: var(--coral); border-color: var(--coral); }

.ly-breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 6px;
  color: var(--mist);
}

.ly-breadcrumb [aria-current="page"] { color: var(--graphite); font-weight: 700; }

/* ---------- 8. 编号章节 ---------- */
.ly-section { margin-block: clamp(56px, 8vw, 104px); }

.ly-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 22px;
}

.ly-section__index {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--deep-sea);
  transform: skewX(-4deg);
}

.ly-section__title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
}

.ly-section__lead {
  margin-top: 14px;
  font-size: 16px;
  color: rgba(44, 53, 64, 0.78);
  max-width: 62ch;
}

.ly-rule {
  height: 2px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--deep-sea) 0%, rgba(18, 58, 99, 0.12) 58%, transparent 100%);
  transform: skewX(-12deg);
  transform-origin: left center;
}

/* ---------- 9. 切角资料卡 ---------- */
.ly-card {
  position: relative;
  padding: clamp(18px, 2vw, 26px);
  color: var(--graphite);
  background-color: var(--paper-white);
  background-image:
    linear-gradient(to right, rgba(44, 53, 64, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 53, 64, 0.035) 1px, transparent 1px);
  background-size: 22px 22px;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.ly-card--dark {
  color: var(--paper);
  background-color: var(--ink-night);
  background-image: radial-gradient(120% 130% at 18% 0%, rgba(53, 240, 208, 0.16), transparent 62%);
  border-color: rgba(53, 240, 208, 0.22);
}

.ly-card__title {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: inherit;
}

.ly-card__meta {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--deep-sea);
}

.ly-card--dark .ly-card__meta { color: var(--neon-cyan); }

.ly-card__body {
  margin-top: 12px;
  font-size: 15.5px;
  line-height: 1.72;
  color: rgba(44, 53, 64, 0.82);
}

.ly-card--dark .ly-card__body { color: rgba(246, 241, 231, 0.82); }

/* ---------- 10. 数值体系 ---------- */
.ly-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.ly-stat { display: grid; gap: 4px; }

.ly-stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--deep-sea);
}

.ly-card--dark .ly-stat__value { color: var(--neon-cyan); }

.ly-stat__label {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: rgba(44, 53, 64, 0.7);
}

.ly-card--dark .ly-stat__label { color: var(--mist); }

/* ---------- 11. 图片容器（页面阶段放图占位） ---------- */
.ly-media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--deep-sea);
  background-image:
    radial-gradient(120% 120% at 18% 0%, rgba(53, 240, 208, 0.22), transparent 58%),
    linear-gradient(135deg, var(--deep-sea), var(--ink-night));
  border-radius: 2px;
}

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

.ly-media--wide { aspect-ratio: 21 / 9; }
.ly-media--square { aspect-ratio: 1 / 1; }
.ly-media--tall { aspect-ratio: 4 / 5; }

.ly-media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 12px 16px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--paper);
  background: linear-gradient(to top, rgba(10, 29, 51, 0.9), transparent);
}

/* ---------- 12. 页头 ---------- */
.ly-header {
  position: sticky;
  top: 0;
  z-index: 80;
  color: var(--paper);
  background-color: var(--ink-night);
  background-image:
    linear-gradient(to right, rgba(143, 166, 191, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 166, 191, 0.09) 1px, transparent 1px),
    radial-gradient(120% 150% at 50% -50%, rgba(53, 240, 208, 0.17), transparent 60%);
  background-size: 32px 32px, 32px 32px, 100% 100%;
  border-bottom: 1px solid rgba(53, 240, 208, 0.2);
}

.ly-header__inner {
  width: var(--shell);
  margin-inline: auto;
}

.ly-header__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-dark);
}

.ly-header__tagline {
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.ly-header__actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
}

.ly-masthead {
  padding: 22px 0 16px;
  text-align: center;
}

.ly-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.ly-brand__mark {
  width: 56px;
  height: 7px;
  background: linear-gradient(90deg, var(--neon-cyan) 0 62%, var(--coral) 62% 100%);
  clip-path: polygon(0 0, 100% 0, calc(100% - 9px) 100%, 0 100%);
}

.ly-brand__name {
  display: block;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 900;
  letter-spacing: 0.12em;
  color: #FFFFFF;
  transform: skewX(-4deg);
}

.ly-brand__sub {
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--mist);
}

.ly-navbar {
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid rgba(53, 240, 208, 0.2);
}

.ly-nav-toggle { display: none; }

.ly-nav { display: block; }

.ly-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.ly-nav__link {
  position: relative;
  display: block;
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(246, 241, 231, 0.8);
  transition: color 0.18s var(--ease);
}

.ly-nav__link::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 8px;
  height: 2px;
  background: var(--neon-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s var(--ease);
}

.ly-nav__link:hover { color: #FFFFFF; }
.ly-nav__link:hover::after { transform: scaleX(1); }

.ly-nav__link[aria-current="page"] { color: var(--neon-cyan); }
.ly-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.ly-progress {
  height: 2px;
  background: rgba(143, 166, 191, 0.2);
  overflow: hidden;
}

.ly-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--coral));
  transform: scaleX(0);
  transform-origin: left center;
}

/* ---------- 13. 页脚 ---------- */
.ly-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 110px);
  color: var(--paper);
  background-color: var(--ink-night);
  background-image:
    linear-gradient(to right, rgba(143, 166, 191, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 166, 191, 0.07) 1px, transparent 1px),
    radial-gradient(90% 120% at 8% -10%, rgba(18, 58, 99, 0.95), transparent 62%);
  background-size: 32px 32px, 32px 32px, 100% 100%;
}

.ly-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 3px;
  background: var(--coral);
  transform: skewX(-12deg);
  transform-origin: left top;
}

.ly-footer__inner {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.15fr 1.6fr;
  gap: clamp(28px, 4vw, 64px);
  padding: clamp(48px, 6vw, 72px) 0 clamp(28px, 3vw, 40px);
}

.ly-footer__brandname {
  display: block;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: #FFFFFF;
  transform: skewX(-4deg);
}

.ly-footer__brandline {
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.ly-footer__service {
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.86);
  max-width: 34ch;
}

.ly-footer__badge {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--paper);
  border: 1px solid var(--line-dark);
  border-radius: 999px;
}

.ly-footer__nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.ly-footer__title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--mist);
}

.ly-footer__list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.ly-footer__link {
  font-size: 15px;
  color: rgba(246, 241, 231, 0.78);
  transition: color 0.18s var(--ease);
}

.ly-footer__link:hover { color: var(--neon-cyan); }

.ly-footer__meta {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px 40px;
  padding: 22px 0 44px;
  border-top: 1px solid var(--line-dark);
  font-size: 14px;
  color: var(--mist);
}

.ly-footer__contact {
  font-style: normal;
  display: grid;
  gap: 8px;
}

.ly-footer__contactline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: rgba(246, 241, 231, 0.8);
  line-height: 1.6;
}

.ly-footer__legal { display: grid; gap: 8px; }

.ly-footer__icp {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--mist);
}

.ly-footer__copy { color: var(--mist); }

.ly-copy {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--neon-cyan);
  border: 1px solid rgba(53, 240, 208, 0.42);
  border-radius: 999px;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.ly-copy:hover { background: rgba(53, 240, 208, 0.14); }

.ly-copy[data-copied="true"] {
  color: var(--ink-night);
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

/* ---------- 14. 显现与章节侧栏 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.ly-spy {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 60;
  display: grid;
  gap: 8px;
}

.ly-spy__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--paper);
  background: rgba(10, 29, 51, 0.88);
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.ly-spy__link:hover { border-color: var(--neon-cyan); }

.ly-spy__link[aria-current="true"] {
  color: var(--ink-night);
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1024px) {
  .ly-span-3,
  .ly-span-4 { grid-column: span 6; }

  .ly-span-5,
  .ly-span-7 { grid-column: span 6; }

  .ly-span-8 { grid-column: span 12; }

  .ly-navbar {
    flex-direction: column;
    align-items: stretch;
  }

  .ly-nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    align-self: center;
    margin: 12px 0;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--neon-cyan);
    border: 1px solid rgba(53, 240, 208, 0.42);
    border-radius: 999px;
    transition: background-color 0.18s var(--ease);
  }

  .ly-nav-toggle:hover { background: rgba(53, 240, 208, 0.12); }

  .ly-nav-toggle__bars {
    position: relative;
    width: 16px;
    height: 10px;
  }

  .ly-nav-toggle__bars::before,
  .ly-nav-toggle__bars::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: currentColor;
    transition: transform 0.18s var(--ease);
  }

  .ly-nav-toggle__bars::before { top: 0; }
  .ly-nav-toggle__bars::after { bottom: 0; }

  .ly-nav-toggle[aria-expanded="true"] .ly-nav-toggle__bars::before {
    transform: translateY(4px) rotate(12deg);
  }

  .ly-nav-toggle[aria-expanded="true"] .ly-nav-toggle__bars::after {
    transform: translateY(-4px) rotate(-12deg);
  }

  .ly-nav { display: none; }

  .ly-nav[data-open="true"] {
    display: block;
    padding-bottom: 14px;
  }

  .ly-nav__list {
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 0 10px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  .ly-nav__link {
    white-space: nowrap;
    padding: 9px 15px;
    font-size: 14px;
    border: 1px solid rgba(143, 166, 191, 0.34);
    border-radius: 999px;
  }

  .ly-nav__link::after { display: none; }
  .ly-nav__link:hover { border-color: rgba(53, 240, 208, 0.6); }

  .ly-nav__link[aria-current="page"] {
    background: rgba(53, 240, 208, 0.14);
    border-color: var(--neon-cyan);
  }

  .ly-footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .ly-footer__meta { grid-template-columns: 1fr; }

  .ly-spy {
    position: fixed;
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    transform: none;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 8px 14px;
    background: rgba(10, 29, 51, 0.94);
    border-top: 1px solid var(--line-dark);
    scrollbar-width: thin;
  }

  .ly-spy__link { white-space: nowrap; }
}

@media (max-width: 640px) {
  :root { --shell: min(1280px, calc(100% - 28px)); }

  body { font-size: 16px; }

  .ly-header__tagline { display: none; }

  .ly-header__bar {
    justify-content: flex-end;
    padding: 10px 0;
  }

  .ly-header__actions {
    width: 100%;
    gap: 12px;
    justify-content: flex-end;
  }

  .ly-masthead { padding: 16px 0 12px; }

  .ly-brand__sub {
    font-size: 12px;
    letter-spacing: 0.16em;
  }

  .ly-btn {
    padding: 10px 16px;
    font-size: 14px;
  }

  .ly-footer__nav { grid-template-columns: 1fr 1fr; }

  .ly-footer__service { max-width: none; }

  .ly-section__head { gap: 10px 16px; }

  [class*="ly-span-"] { grid-column: 1 / -1; }
}

/* ---------- 16. 降低动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 120ms !important;
  }

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

  .ly-progress__bar { transition: none; }
}