/* =========================================================
   十博电竞主站 — 全站共享样式 /assets/site.css
   深空仪表盘 · 竞技强调色 · 粗野结构线
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 124px;
}

body,
h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

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

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

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

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

[hidden] { display: none !important; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink: #070B18;
  --panel: #101A2E;
  --paper: #F2EAD8;
  --cyan: #27F0E3;
  --orange: #FF6B2C;
  --purple: #7B4DFF;
  --blue: #3D8BFF;
  --green: #46E08A;
  --red: #FF4D6D;
  --line: #26344D;

  --paper-dim: rgba(242, 234, 216, 0.74);
  --paper-faint: rgba(242, 234, 216, 0.48);
  --cyan-ghost: rgba(39, 240, 227, 0.08);
  --orange-ghost: rgba(255, 107, 44, 0.10);
  --purple-ghost: rgba(123, 77, 255, 0.16);

  --font-display: "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --wrap-max: 1200px;
  --gutter: clamp(16px, 4vw, 44px);
  --fs-body: clamp(15px, 0.42vw + 13.4px, 17px);
  --stroke: 2px;

  --shadow-hard: 8px 8px 0 rgba(0, 0, 0, 0.55);
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.55);

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --fast: 160ms var(--ease);
}

/* ---------- 3. Base ---------- */
body {
  background-color: var(--ink);
  background-image:
    linear-gradient(90deg, rgba(38, 52, 77, 0.30) 1px, transparent 1px),
    linear-gradient(0deg, rgba(38, 52, 77, 0.16) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  background-position: -1px -1px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
}

strong { font-weight: 800; color: var(--paper); }

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 4. Layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.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)); }

.layout-aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 224px;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.rule {
  height: 0;
  border: 0;
  border-top: var(--stroke) solid var(--line);
  margin-block: clamp(20px, 3vw, 32px);
}

/* ---------- 5. Text utilities ---------- */
.mono {
  font-family: var(--font-mono);
  font-size: 0.78em;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(70, 224, 138, 0.18);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-bottom: clamp(18px, 3vw, 28px);
  padding-bottom: 12px;
  border-bottom: var(--stroke) solid var(--line);
}

.section-head__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.section-head__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 800;
  color: var(--paper);
}

.prose { max-width: 38em; }

.prose p {
  max-width: 36em;
  color: var(--paper-dim);
  line-height: 1.9;
  margin-bottom: 1.1em;
}

.prose p:last-child { margin-bottom: 0; }

.prose h3 {
  font-size: clamp(18px, 1.8vw, 22px);
  margin: 1.4em 0 0.6em;
  color: var(--paper);
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  white-space: nowrap;
  border: var(--stroke) solid var(--line);
  background: transparent;
  color: var(--paper);
  transition:
    background-color var(--fast),
    color var(--fast),
    border-color var(--fast),
    transform var(--fast),
    box-shadow var(--fast);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.55);
}

.btn:active {
  transform: translate(0, 0);
  box-shadow: none;
}

.btn--hot {
  background: var(--orange);
  border-color: var(--orange);
  color: #12060A;
}

.btn--hot:hover {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

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

.btn--ghost:hover {
  background: var(--cyan);
  color: var(--ink);
}

.btn--sm {
  padding: 8px 13px;
  font-size: 12px;
}

/* ---------- 7. Chips & panels ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  background: var(--cyan-ghost);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  white-space: nowrap;
}

.chip--orange {
  background: var(--orange-ghost);
  border-color: rgba(255, 107, 44, 0.5);
  color: var(--orange);
}

.chip--purple {
  background: var(--purple-ghost);
  border-color: rgba(123, 77, 255, 0.55);
  color: #C6B4FF;
}

.panel {
  background: var(--panel);
  border: var(--stroke) solid var(--line);
  box-shadow: var(--shadow-hard);
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-faint);
}

.panel__body { padding: clamp(14px, 2vw, 20px); }

/* ---------- 8. Breadcrumb & TOC ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--paper-faint);
}

.breadcrumb a {
  color: var(--paper-dim);
  transition: color var(--fast);
}

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

.breadcrumb > span[aria-current="page"] { color: var(--cyan); }

.toc {
  position: relative;
  padding-left: 14px;
  border-left: var(--stroke) solid var(--line);
}

.toc__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}

.toc a {
  display: block;
  padding: 6px 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--paper-faint);
  transition: color var(--fast), padding-left var(--fast);
}

.toc a:hover {
  color: var(--cyan);
  padding-left: 4px;
}

.toc a[aria-current="true"] {
  color: var(--cyan);
  font-weight: 700;
}

/* ---------- 9. Media frame ---------- */
.media-frame {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: var(--stroke) solid var(--line);
  background:
    linear-gradient(135deg, var(--panel) 0%, #0B1424 58%, #0A1020 100%);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.45);
}

.media-frame::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 32px;
  height: 32px;
  background: linear-gradient(225deg, var(--cyan) 50%, transparent 50%);
  opacity: 0.6;
  pointer-events: none;
}

.media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  background: rgba(7, 11, 24, 0.84);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--paper-dim);
}

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

/* ---------- 10. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: var(--gutter);
  z-index: 200;
  transform: translateY(-180%);
  padding: 10px 16px;
  background: var(--cyan);
  color: var(--ink);
  border: var(--stroke) solid var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: transform var(--fast);
}

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

/* ---------- 11. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--ink);
  border-bottom: var(--stroke) solid var(--line);
  transition: box-shadow var(--fast);
}

.site-header[data-scrolled] {
  box-shadow:
    0 14px 34px -14px rgba(0, 0, 0, 0.95),
    0 1px 0 rgba(39, 240, 227, 0.22);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--purple) 52%, var(--orange) 100%);
  pointer-events: none;
}

/* HUD strip */
.hud-strip {
  background: linear-gradient(90deg, var(--panel) 0%, var(--ink) 62%);
  border-bottom: 1px solid var(--line);
}

.hud-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 34px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--paper-faint);
}

.hud-strip__brand {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hud-strip__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--paper-dim);
  white-space: nowrap;
}

/* Masthead */
.masthead {
  position: relative;
  background: var(--ink);
}

.masthead__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 30px);
  min-height: 70px;
}

.brandmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--paper);
}

.brandmark__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--orange);
  border: var(--stroke) solid var(--orange);
  color: #12060A;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
  transform: skewX(-9deg);
  transition: background-color var(--fast), border-color var(--fast), color var(--fast);
}

.brandmark:hover .brandmark__mark {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.brandmark__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brandmark__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.brandmark__sub {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

/* Nav toggle */
.navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  margin-left: auto;
  padding: 9px 12px;
  border: var(--stroke) solid var(--line);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  transition: border-color var(--fast), color var(--fast), background-color var(--fast);
}

.navtoggle:hover,
.navtoggle[aria-expanded="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-ghost);
}

.navtoggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: background-color var(--fast);
}

.navtoggle__bars::before,
.navtoggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform var(--fast);
}

.navtoggle__bars::before { top: -5px; }
.navtoggle__bars::after { top: 5px; }

.site-header[data-open] .navtoggle__bars { background-color: transparent; }
.site-header[data-open] .navtoggle__bars::before { transform: translateY(5px) rotate(45deg); }
.site-header[data-open] .navtoggle__bars::after { transform: translateY(-5px) rotate(-45deg); }

/* Primary nav */
.primarynav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1 1 auto;
  min-width: 0;
}

.primarynav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.primarynav__list::-webkit-scrollbar { display: none; }

.primarynav__item { flex: 0 0 auto; }

.primarynav__link {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  color: var(--paper-dim);
  transition: color var(--fast), border-color var(--fast), background-color var(--fast);
}

.primarynav__link:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.primarynav__link[aria-current="page"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.primarynav__cta { flex: 0 0 auto; }

/* ---------- 12. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 100px);
  background:
    radial-gradient(120% 88% at 10% 0%, rgba(123, 77, 255, 0.20), transparent 62%),
    radial-gradient(90% 70% at 92% 8%, rgba(39, 240, 227, 0.10), transparent 60%),
    linear-gradient(180deg, #0A1020 0%, var(--ink) 44%, #05080F 100%);
  border-top: var(--stroke) solid var(--line);
  color: var(--paper);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--purple) 42%, var(--orange) 100%);
  opacity: 0.9;
}

.footer-top__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.95fr);
  gap: clamp(26px, 4vw, 60px);
  padding-block: clamp(34px, 5vw, 58px) clamp(24px, 4vw, 36px);
}

.footer-brand { display: block; }

.footer-tagline {
  margin-top: 18px;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper-dim);
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 6px 11px;
  border: 1px solid rgba(39, 240, 227, 0.45);
  background: var(--cyan-ghost);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.6vw, 32px);
}

.footer-col__heading {
  margin-bottom: 14px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.footer-list { display: grid; gap: 2px; }

.footer-link {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--paper-dim);
  transition: color var(--fast), text-decoration-color var(--fast);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 5px;
  text-decoration-thickness: 2px;
}

.footer-link:hover {
  color: var(--cyan);
  text-decoration-color: var(--cyan);
}

.footer-link--sm {
  padding: 2px 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--paper-faint);
}

.footer-contact {
  display: grid;
  gap: 7px;
  padding-block: clamp(18px, 3vw, 24px);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.8;
  color: var(--paper-dim);
}

.footer-contact__line { word-break: break-word; }

.footer-contact .mono { color: var(--cyan); }

.footer-note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--paper-faint);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 16px 30px;
  border-top: 1px solid var(--line);
}

.footer-legal__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--paper-faint);
}

.footer-legal__row .mono { color: var(--paper-dim); }

/* ---------- 13. Responsive ---------- */
@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  html { scroll-padding-top: 96px; }

  .navtoggle { display: inline-flex; }

  .primarynav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 5;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px var(--gutter) 22px;
    max-height: 74vh;
    overflow-y: auto;
    background: var(--panel);
    border-top: var(--stroke) solid var(--line);
    border-bottom: 3px solid var(--line);
    box-shadow: var(--shadow-soft);
  }

  .site-header[data-open] .primarynav { display: flex; }

  .primarynav__list {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
  }

  .primarynav__item { flex: none; }

  .primarynav__link {
    display: flex;
    justify-content: space-between;
    padding: 14px 2px;
    border: 0;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }

  .primarynav__link:hover { border-color: var(--line); border-bottom-color: var(--cyan); }

  .primarynav__link[aria-current="page"] { padding-inline: 10px; }

  .primarynav__cta {
    width: 100%;
    margin-top: 18px;
  }

  .layout-aside { grid-template-columns: minmax(0, 1fr); }
  .footer-top__inner { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 820px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .hud-strip__meta { display: none; }
  .hud-strip__brand { font-size: 10.5px; letter-spacing: 0.06em; }
}

@media (max-width: 560px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-legal { flex-direction: column; align-items: flex-start; }
  .brandmark__mark { width: 34px; height: 34px; font-size: 18px; }
  .brandmark__name { font-size: 17px; }
  .media-frame { box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.45); }
}

/* ---------- 14. Motion & print ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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

  .btn:hover { transform: none; box-shadow: none; }
  .toc a:hover { padding-left: 0; }
  .skip-link { transition: none; }
}