/* ============================================================
   RAY 电竞馆 · /assets/site.css
   共享层：reset / 令牌 / 中文排版 / 框架头部 / 页脚 / 通用组件
   ============================================================ */

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

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

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

/* ---------- 2. 设计令牌 ---------- */
:root {
  --ray-ink: #06090B;
  --ray-deep: #0E1418;
  --ray-silver: #C9D3D8;
  --ray-mid: #8A979E;
  --ray-cyan: #1FF0C4;
  --ray-cyan-deep: #0BA88B;
  --ray-amber: #FFA030;
  --ray-magenta: #FF3D8A;
  --ray-line: #243036;
  --ray-paper: #F2F6F5;

  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;

  --maxw: 1320px;
  --gutter: clamp(16px, 4vw, 44px);
  --header-h: 74px;
  --radius: 6px;
  --ease: cubic-bezier(.4, .1, .2, 1);
}

/* ---------- 3. 基础层 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ray-ink);
  color: var(--ray-silver);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(36, 48, 54, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 48, 54, .55) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: .28;
}

::selection {
  background: var(--ray-cyan);
  color: #04100D;
}

:focus-visible {
  outline: 2px solid var(--ray-cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- 4. 排版基元 ---------- */
.display-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 6vw, 6.4rem);
  line-height: .92;
  letter-spacing: -.02em;
  color: var(--ray-paper);
  transform: skewX(-3deg);
  transform-origin: left bottom;
  margin: 0;
}

.h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ray-paper);
}

.h3 {
  font-size: 1.05rem;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ray-silver);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
}

.annotation {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: .18em;
  color: var(--ray-mid);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--ray-cyan);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--ray-cyan);
}

.prose { max-width: 40em; }
.prose p { max-width: 38em; margin-bottom: 1em; }
.prose p:last-child { margin-bottom: 0; }
.prose a {
  color: var(--ray-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 240, 196, .35);
  transition: border-color .2s var(--ease);
}
.prose a:hover { border-bottom-color: var(--ray-cyan); }
.prose strong { color: var(--ray-paper); font-weight: 700; }
.prose ul { list-style: none; display: grid; gap: .5em; }
.prose li { position: relative; padding-left: 1.4em; }
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--ray-cyan-deep);
}

/* ---------- 5. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: 820px; }

.section { padding-block: clamp(40px, 6vw, 80px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 28px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.grid {
  display: grid;
  gap: clamp(14px, 2vw, 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)); }
.grid--asym { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }

/* ---------- 6. 框架头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(6, 9, 11, .94);
  border-bottom: 1px solid var(--ray-line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--ray-cyan), var(--ray-magenta));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: 10px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 4px;
  background: var(--ray-cyan);
  color: #04100D;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .06em;
  text-decoration: none;
  transform: translate(-50%, -180%);
  transition: transform .2s var(--ease);
}

.skip-link:focus { transform: translate(-50%, 0); }

.header-bar {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  min-height: var(--header-h);
  transition: min-height .3s var(--ease);
}

.site-header.is-compact .header-bar { min-height: 58px; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--ray-silver);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 12px;
  background: var(--ray-cyan);
  color: #04100D;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .1em;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 84% 100%, 0 100%);
  transition: background .2s var(--ease), transform .2s var(--ease);
}

.brand:hover .brand-mark {
  background: var(--ray-paper);
  transform: translateY(-2px);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.2;
}

.brand-line {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ray-silver);
  white-space: nowrap;
}

.brand-season {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--ray-amber);
  white-space: nowrap;
}

.site-nav { margin: 0; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(2px, 1.2vw, 16px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 9px 7px 10px;
  color: var(--ray-mid);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .05em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  background: var(--ray-cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .24s var(--ease);
}

.nav-link:hover { color: var(--ray-silver); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--ray-cyan); }
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--ray-cyan);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  flex: 0 0 auto;
}

.archive-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--ray-cyan-deep);
  border-radius: 999px;
  background: rgba(31, 240, 196, .08);
  color: var(--ray-cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.archive-pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ray-cyan);
  box-shadow: 0 0 0 3px rgba(31, 240, 196, .16);
  transition: background .2s var(--ease), box-shadow .2s var(--ease);
}

.archive-pill:hover {
  background: var(--ray-cyan);
  border-color: var(--ray-cyan);
  color: #04100D;
  transform: translateY(-2px);
}

.archive-pill:hover::before {
  background: #04100D;
  box-shadow: 0 0 0 3px rgba(4, 16, 13, .18);
}

.archive-pill-code {
  padding-left: 8px;
  border-left: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  opacity: .8;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--ray-line);
  border-radius: 10px;
  background: rgba(14, 20, 24, .7);
  color: var(--ray-silver);
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

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

.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 .24s var(--ease);
}

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

.site-header[data-open] .nav-toggle-bars { background: transparent; }
.site-header[data-open] .nav-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bars::after { transform: translateY(-6px) rotate(-45deg); }

.header-rail {
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--ray-line) 0 1px, transparent 1px 26px);
  opacity: .7;
}

@media (min-width: 900px) {
  .site-header::before,
  .site-header::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--ray-cyan) 0 20px, var(--ray-line) 20px);
    opacity: .45;
    pointer-events: none;
  }
  .site-header::before { left: 12px; }
  .site-header::after { right: 12px; }
}

@media (max-width: 899px) {
  .header-rail { display: none; }

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

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    margin: 0;
    background: linear-gradient(180deg, #0E1418, #070B0D);
    border-bottom: 1px solid var(--ray-line);
    box-shadow: 0 24px 48px rgba(0, 0, 0, .62);
  }

  .site-header[data-open] .site-nav { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--gutter) 20px;
  }

  .nav-list li + li { border-top: 1px solid rgba(36, 48, 54, .8); }

  .nav-link {
    display: block;
    padding: 15px 2px;
    font-size: 15px;
    letter-spacing: .06em;
  }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"] {
    padding-left: 14px;
    box-shadow: inset 3px 0 0 var(--ray-cyan);
  }
}

@media (max-width: 620px) {
  .brand-line { display: none; }
  .brand-mark { font-size: 13px; padding: 6px 10px; }
  .archive-pill { padding: 7px 11px; font-size: 12px; }
}

@media (max-width: 420px) {
  .archive-pill-text { display: none; }
  .archive-pill-code { border-left: 0; padding-left: 0; }
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 96px);
  border-top: 1px solid var(--ray-line);
  background: linear-gradient(180deg, #06090B 0%, #0B1114 55%, #06090B 100%);
  color: var(--ray-mid);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(48%, 520px);
  height: 3px;
  background: linear-gradient(90deg, var(--ray-cyan), var(--ray-magenta), transparent);
}

.footer-inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) var(--gutter) 26px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(240px, 1.4fr) repeat(3, minmax(120px, 1fr));
  gap: clamp(24px, 4vw, 48px);
}

.brand--footer { margin-bottom: 14px; }

.footer-note {
  max-width: 30em;
  margin-bottom: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ray-mid);
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-col-title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--ray-cyan);
}

.footer-list {
  display: grid;
  gap: 9px;
}

.footer-link {
  position: relative;
  display: inline-block;
  font-size: 14px;
  color: var(--ray-silver);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--ray-cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .24s var(--ease);
}

.footer-link:hover { color: var(--ray-cyan); }
.footer-link:hover::after { transform: scaleX(1); }

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 18px;
  border-top: 1px dashed var(--ray-line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ray-mid);
}

.footer-contact-item {
  position: relative;
  padding-left: 14px;
}

.footer-contact-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 5px;
  height: 5px;
  background: var(--ray-cyan-deep);
  transform: rotate(45deg);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--ray-line);
}

.footer-legal { font-size: 12.5px; color: var(--ray-mid); }

.footer-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ray-cyan-deep);
}

@media (max-width: 899px) {
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 8. 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--ray-line);
  border-radius: 4px;
  background: transparent;
  color: var(--ray-silver);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: linear-gradient(90deg, rgba(31, 240, 196, .22), rgba(31, 240, 196, 0));
  transition: width .26s var(--ease);
  pointer-events: none;
}

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

.btn:hover::after { width: 100%; }

.btn--primary {
  background: var(--ray-cyan);
  border-color: var(--ray-cyan);
  color: #04100D;
}

.btn--primary::after {
  background: linear-gradient(90deg, rgba(4, 16, 13, .18), transparent);
}

.btn--primary:hover {
  background: #12D8AF;
  border-color: #12D8AF;
  color: #04100D;
}

.btn--ghost {
  background: rgba(14, 20, 24, .6);
  border-color: var(--ray-line);
  color: var(--ray-silver);
}

.btn--amber {
  border-color: rgba(255, 160, 48, .55);
  color: var(--ray-amber);
}

.btn--amber::after {
  background: linear-gradient(90deg, rgba(255, 160, 48, .22), transparent);
}

.btn--amber:hover {
  border-color: var(--ray-amber);
  color: var(--ray-amber);
}

/* ---------- 9. 标签 / 面板 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.7;
  color: var(--ray-mid);
  white-space: nowrap;
}

.tag--cyan { color: var(--ray-cyan); background: rgba(31, 240, 196, .08); }
.tag--magenta { color: var(--ray-magenta); background: rgba(255, 61, 138, .08); }
.tag--amber { color: var(--ray-amber); background: rgba(255, 160, 48, .08); }

.panel {
  position: relative;
  padding: clamp(16px, 2.4vw, 28px);
  border: 1px solid var(--ray-line);
  border-radius: var(--radius);
  background: var(--ray-deep);
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 3px;
  background: var(--ray-cyan);
}

.panel--magenta::before { background: var(--ray-magenta); }
.panel--amber::before { background: var(--ray-amber); }

/* ---------- 10. 面包屑 ---------- */
.breadcrumb {
  padding-block: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--ray-mid);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.breadcrumb li + li::before {
  content: "/";
  color: var(--ray-line);
}

.breadcrumb a {
  color: var(--ray-mid);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.breadcrumb a:hover { color: var(--ray-cyan); }

.breadcrumb [aria-current="page"] { color: var(--ray-silver); }

/* ---------- 11. 图片容器（页面阶段放置图片） ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--ray-line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 120% at 12% 0%, rgba(31, 240, 196, .18), transparent 62%),
    radial-gradient(100% 100% at 100% 100%, rgba(255, 61, 138, .16), transparent 58%),
    #0B1114;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.96) contrast(1.06);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(6, 9, 11, 0) 46%, rgba(6, 9, 11, .58) 100%);
}

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

.media-frame__label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--ray-cyan);
}

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-align: center;
  color: rgba(201, 211, 216, .55);
}

/* ---------- 12. 渐现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

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

/* ---------- 13. 响应式栅格回落 ---------- */
@media (max-width: 1100px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 899px) {
  .grid--2,
  .grid--3,
  .grid--asym { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .section { padding-block: 36px; }
}

/* ---------- 14. 动效降级 ---------- */
@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-reveal] {
    opacity: 1;
    transform: none;
  }

  .btn:hover,
  .archive-pill:hover,
  .brand:hover .brand-mark {
    transform: none;
  }
}