/* ========== 电竞世界主站 · 共享基础样式 /assets/site.css ========== */

:root {
  --ink: #07090C;
  --ink-2: #151A1F;
  --panel: #1F262E;
  --line: #2C3640;
  --cyan: #25E6C8;
  --orange: #FF6A2A;
  --magenta: #E9409B;
  --lime: #B8FF3D;
  --paper: #ECF3F6;
  --steel: #7FA3B8;
  --rail-w: 238px;
  --top-h: 62px;
  --font-head: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow-hard: 8px 8px 0 rgba(37, 230, 200, 0.16);
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

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

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

body {
  margin: 0;
  padding-top: calc(var(--top-h) + 2px);
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, rgba(44, 54, 64, 0.45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 54, 64, 0.45) 1px, transparent 1px);
  background-size: 72px 72px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}
h1 { font-size: clamp(2.2rem, 5.2vw, 4.2rem); }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.55rem); }
p { margin: 0 0 1.1em; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.2em; }
li { margin: 0.35em 0; }

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}
a:hover { color: var(--orange); }

strong, b { color: var(--paper); font-weight: 700; }
code, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
:focus:not(:focus-visible) { outline: none; }

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

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  padding: 0.65rem 1.1rem;
  background: var(--lime);
  color: var(--ink);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.06em;
  border: 2px solid var(--ink);
  transform: translateY(-130%);
  transition: transform 0.18s var(--ease);
}
.skip-link:focus { transform: translateY(0); color: var(--ink); }

/* ---------- 品牌 ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  text-decoration: none;
  min-width: 0;
}
.brand:hover { color: var(--paper); }
.brand-glyph {
  position: relative;
  flex: none;
  width: 30px;
  height: 30px;
  border: 2px solid var(--cyan);
  background: var(--ink);
  box-shadow: 3px 3px 0 rgba(255, 106, 42, 0.55);
}
.brand-glyph::after {
  content: "";
  position: absolute;
  inset: 5px 5px auto auto;
  width: 10px;
  height: 10px;
  background: var(--orange);
}
.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--paper);
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.5;
  letter-spacing: 0.24em;
  color: var(--steel);
  white-space: nowrap;
}

/* ---------- 页头 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  background: linear-gradient(180deg, #0B0F13 0%, var(--ink) 100%);
  border-bottom: 2px solid var(--line);
  color: var(--paper);
}
.header-top {
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--top-h);
  padding: 0 14px;
}
.header-status { display: none; }
.status-dot {
  display: inline-block;
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(184, 255, 61, 0.18);
}
.status-text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
  white-space: nowrap;
}

.nav-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--panel);
  color: var(--paper);
  border: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background 0.16s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cyan);
  transition: transform 0.18s var(--ease), background 0.18s var(--ease);
}
.nav-toggle-bars::before { top: 0; }
.nav-toggle-bars::after { bottom: 0; }
.site-header[data-open] .nav-toggle {
  background: var(--ink-2);
  border-color: var(--lime);
  color: var(--lime);
}
.site-header[data-open] .nav-toggle-bars::before { transform: translateY(4px) rotate(45deg); background: var(--lime); }
.site-header[data-open] .nav-toggle-bars::after { transform: translateY(-4px) rotate(-45deg); background: var(--lime); }

.site-nav {
  position: fixed;
  top: calc(var(--top-h) + 2px);
  left: 0;
  bottom: 0;
  width: min(86vw, 320px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 16px 28px;
  background: linear-gradient(180deg, #101519 0%, #0A0E12 100%);
  border-right: 2px solid var(--line);
  overflow-y: auto;
  transform: translateX(-104%);
  visibility: hidden;
  transition: transform 0.2s var(--ease), visibility 0.2s var(--ease);
}
.site-header[data-open] .site-nav {
  transform: translateX(0);
  visibility: visible;
}
.nav-caption {
  margin: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--steel);
}
.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-item { margin: 0; }
.nav-link {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  align-items: center;
  gap: 0.5rem;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  color: var(--paper);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: background 0.16s var(--ease), color 0.16s var(--ease), border-color 0.16s var(--ease), transform 0.16s var(--ease);
}
.nav-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
  transition: color 0.16s var(--ease);
}
.nav-text { min-width: 0; }
.nav-link:hover {
  background: var(--ink-2);
  border-left-color: var(--cyan);
  color: var(--cyan);
  transform: translateX(2px);
}
.nav-link:hover .nav-num { color: var(--cyan); }
.nav-link[aria-current="page"] {
  background: var(--cyan);
  border-left-color: var(--ink);
  color: var(--ink);
}
.nav-link[aria-current="page"] .nav-num { color: var(--ink); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  background: var(--orange);
  border: 2px solid var(--orange);
  color: var(--ink);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.06em;
  box-shadow: 4px 4px 0 rgba(37, 230, 200, 0.26);
  transition: transform 0.16s var(--ease), box-shadow 0.16s var(--ease), background 0.16s var(--ease);
}
.nav-cta:hover {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 106, 42, 0.4);
}
.nav-meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.scroll-track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 3px;
  background: rgba(44, 54, 64, 0.85);
  pointer-events: none;
}
.scroll-bar {
  display: block;
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--cyan), var(--lime) 55%, var(--orange));
  transition: width 0.1s linear;
}

@media (max-width: 1023px) {
  body.is-nav-open { overflow: hidden; }
}

@media (min-width: 1024px) {
  body { padding-top: 0; padding-left: var(--rail-w); }

  .site-header {
    right: auto;
    bottom: 0;
    width: var(--rail-w);
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 22px 18px 20px;
    border-bottom: 0;
    border-right: 2px solid var(--line);
    background: linear-gradient(180deg, #0B0F13 0%, #06080B 100%);
  }
  .header-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    height: auto;
    padding: 0;
  }
  .header-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 4px 8px;
    border: 1px solid var(--line);
    background: rgba(31, 38, 46, 0.6);
  }
  .nav-toggle { display: none; }

  .site-nav {
    position: static;
    transform: none;
    visibility: visible;
    width: auto;
    flex: 1 1 auto;
    gap: 12px;
    padding: 0;
    border-right: 0;
    background: none;
    overflow: visible;
    transition: none;
  }
  .nav-caption { padding-bottom: 8px; }
  .nav-cta { margin-top: 4px; }
  .nav-meta { margin-top: auto; }

  .scroll-track {
    left: auto;
    top: 0;
    bottom: 0;
    right: -2px;
    width: 3px;
    height: auto;
  }
  .scroll-bar {
    width: 100%;
    height: var(--progress, 0%);
    background: linear-gradient(180deg, var(--cyan), var(--lime) 55%, var(--orange));
    transition: height 0.1s linear;
  }
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 72px;
  padding-top: 44px;
  background-color: var(--ink-2);
  background-image:
    linear-gradient(to right, rgba(44, 54, 64, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 54, 64, 0.5) 1px, transparent 1px);
  background-size: 72px 72px;
  border-top: 2px solid var(--line);
  color: var(--paper);
}
.footer-inner {
  width: min(100% - 32px, 1120px);
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding-bottom: 34px;
}
.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.footer-brand-line {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 4px 9px;
  border: 1px solid var(--line);
  background: rgba(7, 9, 12, 0.55);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--steel);
}
.footer-col { min-width: 0; }
.footer-col-title {
  position: relative;
  margin: 0 0 14px;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--steel);
}
.footer-col-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 3px;
  height: 13px;
  background: var(--cyan);
  transform: translateY(-50%);
}
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.footer-links li { margin: 0; }
.footer-link {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
  font-size: 15px;
  color: #C9D6DD;
  text-decoration: none;
}
.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width 0.16s var(--ease);
}
.footer-link:hover { color: var(--paper); }
.footer-link:hover::after { width: 100%; }

.footer-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.contact-item { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.contact-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--steel);
}
.contact-value {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 15px;
  color: var(--paper);
}
.contact-text { word-break: break-word; }
.copy-btn {
  padding: 3px 8px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.16s var(--ease), color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.copy-btn:hover { background: var(--cyan); border-color: var(--cyan); color: var(--ink); }
.copy-btn[data-copied="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.footer-legal {
  background: rgba(7, 9, 12, 0.72);
  border-top: 2px solid var(--line);
  padding: 16px 0 22px;
}
.footer-legal-inner {
  width: min(100% - 32px, 1120px);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel);
}
.footer-legal-inner p { margin: 0; }
.footer-legal-text { color: var(--steel); }
.footer-icp { color: var(--paper); }
.footer-service { color: var(--steel); }

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 1.7fr 0.9fr 0.9fr 0.9fr; gap: 32px; }
  .footer-brand { grid-column: auto; }
  .footer-contact { grid-template-columns: 1fr 0.8fr 1.5fr; gap: 24px; }
}

/* ---------- 容器与网格 ---------- */
.shell {
  width: min(100% - 32px, 1120px);
  margin: 0 auto;
}
.shell--wide {
  width: min(100% - 24px, 1360px);
  margin: 0 auto;
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-12 { grid-column: span 12; }

@media (max-width: 899px) {
  .grid-12 { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .grid-12 > * { grid-column: 1 / -1; }
}

.section { padding: 56px 0; }
.section--tight { padding: 30px 0; }
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px 24px;
  margin-bottom: 26px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line);
}
.section-title { margin: 0; font-size: clamp(1.55rem, 3.4vw, 2.3rem); }
.section-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
}
.rule { height: 2px; border: 0; margin: 32px 0; background: var(--line); }

/* ---------- 文字与数据 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--cyan);
}
.annot {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.num {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--paper);
  font-feature-settings: "tnum" 1;
}
.num--lg { font-size: clamp(1.9rem, 4vw, 2.9rem); line-height: 1; }
.num--xl { font-size: clamp(2.6rem, 7vw, 4.6rem); line-height: 0.95; }
.num--cyan { color: var(--cyan); }
.num--orange { color: var(--orange); }
.num--lime { color: var(--lime); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.3rem;
  border: 2px solid transparent;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.16s var(--ease), box-shadow 0.16s var(--ease), background 0.16s var(--ease), color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(37, 230, 200, 0.26);
}
.btn--primary:hover {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 106, 42, 0.4);
}
.btn--ghost {
  background: transparent;
  border-color: var(--cyan);
  color: var(--cyan);
}
.btn--ghost:hover {
  background: var(--cyan);
  color: var(--ink);
}
.btn--quiet {
  background: var(--panel);
  border-color: var(--line);
  color: var(--paper);
}
.btn--quiet:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--ink-2);
}
.btn--small { padding: 0.45rem 0.8rem; font-size: 13px; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.7;
}
.tag--cyan { background: var(--cyan); border-color: var(--cyan); color: var(--ink); }
.tag--orange { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.tag--magenta { background: var(--magenta); border-color: var(--magenta); color: var(--paper); font-weight: 700; }
.tag--lime { background: transparent; border-color: var(--lime); color: var(--lime); }

/* ---------- 面板 ---------- */
.panel {
  position: relative;
  padding: 20px;
  background: var(--panel);
  border: 2px solid var(--line);
}
.panel--offset { box-shadow: var(--shadow-hard); }
.panel--accent-cyan { border-left: 4px solid var(--cyan); }
.panel--accent-orange { border-left: 4px solid var(--orange); }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}
.breadcrumbs a {
  color: var(--steel);
  border-bottom: 1px solid transparent;
}
.breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.breadcrumbs [aria-current="page"] { color: var(--paper); }
.breadcrumbs .sep { color: var(--line); }

/* ---------- 长文 ---------- */
.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.8;
  color: #D6E2E8;
}
.prose h2 {
  margin: 2em 0 0.6em;
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
}
.prose h3 { margin: 1.6em 0 0.5em; }
.prose p { margin: 0 0 1.15em; }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li { margin: 0.45em 0; }
.prose strong { color: var(--paper); }
.prose a { border-bottom: 1px solid rgba(37, 230, 200, 0.4); }
.prose a:hover { border-bottom-color: var(--orange); }
.prose blockquote {
  margin: 1.6em 0;
  padding: 12px 18px;
  border-left: 4px solid var(--cyan);
  background: var(--ink-2);
  color: var(--paper);
}

/* ---------- 图片容器（页面阶段复用） ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 2px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}
.media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.95) contrast(1.06) brightness(0.92);
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 9, 12, 0) 45%, rgba(7, 9, 12, 0.72) 100%);
  pointer-events: none;
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--plain::after { display: none; }
.media-caption {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .nav-link:hover { transform: none; }
  .btn--primary:hover { transform: none; }
  .nav-cta:hover { transform: none; }
}