/* ============================================================
   8868竞技 · /assets/site.css
   数据霓虹 × 杂志封面 × 斜切Bento —— 全站共享样式
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  --color-bg: #0B0F19;
  --color-panel: #141B2D;
  --color-white: #FFFFFF;
  --color-silver: #A0AEC0;
  --color-blue: #00B8D9;
  --color-green: #00FF88;
  --color-purple: #9D4EDD;
  --color-line: rgba(255, 255, 255, 0.12);
  --color-amber: #FFD166;

  --font-sans: "Source Han Sans CN", "Noto Sans SC", "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", "Consolas", "Liberation Mono", monospace;

  --container-max: 1280px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 0.18s ease;
  --t-med: 0.3s ease;
  --t-slow: 0.55s var(--ease-out);

  --header-top: 16px;
  --header-capsule-h: 58px;
  --header-total: calc(var(--header-top) * 2 + var(--header-capsule-h));
}

/* ---------- 重置与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 116px;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-silver);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse 55% 40% at 85% -5%, rgba(0, 184, 217, 0.07), transparent 65%),
    radial-gradient(ellipse 40% 30% at -5% 25%, rgba(157, 78, 221, 0.06), transparent 60%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px);
  background-size: 48px 48px;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-white);
  font-weight: 800;
  line-height: 1.25;
  text-wrap: balance;
}

p {
  margin-bottom: 1em;
}

ul,
ol {
  padding-left: 1.4em;
}

figure {
  margin: 0;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

hr {
  border: none;
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--t-fast), background-color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}

a:hover {
  color: var(--color-green);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

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

:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 布局基元 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

main[id="main-content"] {
  display: block;
  padding-top: calc(var(--header-total) + 14px);
}

.section {
  padding: 40px 0;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 20px;
  margin-bottom: 28px;
}

.page-hero {
  position: relative;
  padding: 40px 0 64px;
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -100%;
  left: 20px;
  z-index: 2000;
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: var(--color-blue);
  color: var(--color-bg);
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0, 184, 217, 0.35);
  pointer-events: auto;
  transition: top var(--t-fast);
}

.skip-link:focus-visible {
  top: 16px;
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--header-top) 20px 0;
  pointer-events: none;
}

.header-capsule {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1100px;
  height: var(--header-capsule-h);
  margin: 0 auto;
  padding: 0 12px 0 20px;
  background: rgba(11, 15, 25, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 40px rgba(4, 6, 14, 0.6);
  pointer-events: auto;
  transition: border-color var(--t-med), box-shadow var(--t-med);
}

.header-capsule:hover {
  border-color: rgba(0, 184, 217, 0.35);
  box-shadow: 0 10px 40px rgba(4, 6, 14, 0.6), 0 0 20px rgba(0, 184, 217, 0.1);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  flex-shrink: 0;
  line-height: 1;
}

.brand-digit {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  color: var(--color-blue);
  transition: color var(--t-fast), text-shadow var(--t-fast);
}

.brand:hover .brand-digit {
  color: var(--color-green);
  text-shadow: 0 0 18px rgba(0, 255, 136, 0.4);
}

.brand-cn {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-white);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-item {
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-silver);
  white-space: nowrap;
  transition: color var(--t-fast), background-color var(--t-fast), box-shadow var(--t-fast);
}

.nav-link::before {
  content: "/";
  margin-right: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.7em;
  color: var(--color-purple);
  opacity: 0.6;
  transition: color var(--t-fast), opacity var(--t-fast), transform var(--t-fast);
}

.nav-link:hover {
  color: var(--color-white);
  background: rgba(0, 184, 217, 0.1);
}

.nav-link:hover::before {
  color: var(--color-blue);
  opacity: 1;
  transform: translateX(2px);
}

.nav-link[aria-current="page"] {
  color: var(--color-white);
  background: rgba(0, 184, 217, 0.16);
  box-shadow: inset 0 0 0 1px rgba(0, 184, 217, 0.45);
}

.nav-link[aria-current="page"]::before {
  color: var(--color-green);
  opacity: 1;
}

/* 汉堡按钮（移动端显示） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.nav-toggle:hover {
  border-color: rgba(0, 184, 217, 0.6);
  background: rgba(0, 184, 217, 0.08);
}

.nav-toggle .toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-white);
  transition: transform var(--t-med), opacity var(--t-med), background-color var(--t-med);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--color-green);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--color-green);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast), transform var(--t-fast);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--color-blue);
  color: var(--color-bg);
}

.btn--primary:hover {
  background: #26C6E5;
  color: var(--color-bg);
  box-shadow: 0 6px 24px rgba(0, 184, 217, 0.35);
}

.btn--ghost {
  border-color: var(--color-line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--color-white);
}

.btn--ghost:hover {
  border-color: rgba(0, 184, 217, 0.6);
  background: rgba(0, 184, 217, 0.06);
  color: var(--color-blue);
}

.btn--data {
  border-color: rgba(0, 255, 136, 0.35);
  background: rgba(0, 255, 136, 0.1);
  color: var(--color-green);
  font-family: var(--font-mono);
}

.btn--data:hover {
  background: var(--color-green);
  color: var(--color-bg);
  box-shadow: 0 6px 24px rgba(0, 255, 136, 0.3);
}

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  margin: 0 0 24px;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.8rem;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 4px;
  font-family: var(--font-mono);
  color: var(--color-purple);
  opacity: 0.6;
}

.breadcrumb-link {
  color: var(--color-silver);
}

.breadcrumb-link:hover {
  color: var(--color-green);
}

.breadcrumb-current {
  color: var(--color-white);
  font-weight: 600;
}

/* ---------- Bento 网格与面板 ---------- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.panel-block {
  position: relative;
  overflow: hidden;
  padding: 24px;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color var(--t-med), box-shadow var(--t-med), background-color var(--t-med);
}

.panel-block:hover {
  border-color: rgba(0, 184, 217, 0.35);
  background: linear-gradient(180deg, rgba(0, 184, 217, 0.03), transparent 60%), var(--color-panel);
  box-shadow: 0 16px 40px rgba(4, 6, 14, 0.25);
}

.panel-block--accent::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-purple));
}

.panel-block--cut {
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

/* ---------- 媒体占位 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0, 184, 217, 0.08), transparent 40%),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 8px),
    var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
}

.media-frame::after {
  content: "IMG";
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--color-silver);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: rgba(11, 15, 25, 0.6);
}

.media-frame--wide {
  aspect-ratio: 16 / 9;
}

.media-frame--tall {
  aspect-ratio: 3 / 4;
}

.media-frame--square {
  aspect-ratio: 1 / 1;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out), filter 0.5s ease;
}

.media-frame:hover img {
  transform: scale(1.04);
  filter: contrast(1.08) brightness(1.02);
}

/* ---------- 标签、注释与数据 ---------- */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue);
}

.section-tag::before {
  content: "/";
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-purple);
}

.v-note {
  writing-mode: vertical-rl;
  max-height: 12em;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-silver);
  opacity: 0.75;
}

.data-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-green);
}

/* ---------- 分隔线 ---------- */
.divider-line {
  height: 1px;
  margin: 32px 0;
  background: var(--color-line);
}

.divider-line--glow {
  height: 1px;
  margin: 32px 0;
  background: linear-gradient(90deg, transparent, rgba(0, 184, 217, 0.5), rgba(157, 78, 221, 0.5), transparent);
}

/* ---------- 显现动效 ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
}

html.js [data-reveal][data-revealed] {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 64px;
  overflow: hidden;
  background:
    linear-gradient(180deg, transparent 0%, rgba(0, 184, 217, 0.02) 100%),
    #080C16;
  border-top: 1px solid var(--color-line);
  font-size: 0.875rem;
  color: var(--color-silver);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 184, 217, 0.7), rgba(157, 78, 221, 0.7), transparent);
}

.footer-inner {
  position: relative;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 48px 24px 20px;
}

.footer-inner::after {
  content: "88/68";
  position: absolute;
  right: 0;
  bottom: 10px;
  z-index: 0;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(5rem, 16vw, 12rem);
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(255, 255, 255, 0.018);
  pointer-events: none;
}

.footer-inner > * {
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.4fr;
  gap: 40px 32px;
  padding-bottom: 36px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.brand--footer .brand-digit {
  font-size: 1.7rem;
}

.brand--footer .brand-cn {
  font-size: 1.2rem;
}

.footer-slogan {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-blue);
}

.footer-trust {
  max-width: 36em;
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.8;
}

.footer-col {
  min-width: 0;
}

.footer-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-white);
}

.footer-heading::before {
  content: "//";
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-purple);
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  display: inline-block;
  padding: 4px 0;
  font-size: 0.85rem;
  color: var(--color-silver);
  transition: color var(--t-fast), padding-left var(--t-fast);
}

.footer-link:hover {
  color: var(--color-green);
  padding-left: 6px;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.85rem;
  line-height: 1.6;
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-blue);
}

.contact-value {
  color: var(--color-silver);
}

.footer-service {
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid var(--color-purple);
  font-size: 0.75rem;
  color: rgba(160, 174, 192, 0.7);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 20px 0 16px;
  border-top: 1px solid var(--color-line);
  font-size: 0.78rem;
  color: rgba(160, 174, 192, 0.8);
}

.footer-copyright,
.footer-rights {
  margin: 0;
}

.footer-copyright [data-year] {
  font-family: var(--font-mono);
  color: var(--color-white);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
}

@media (max-width: 860px) {
  main[id="main-content"] {
    padding-top: 88px;
  }

  .site-header {
    padding: 12px 14px 0;
  }

  .header-capsule {
    padding: 0 8px 0 16px;
  }

  .brand-digit {
    font-size: 1.15rem;
  }

  .brand-cn {
    font-size: 0.9rem;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: block;
    padding: 10px;
    background: rgba(11, 15, 25, 0.97);
    border: 1px solid var(--color-line);
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(4, 6, 14, 0.7);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--t-med), transform var(--t-med), visibility var(--t-med);
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-link {
    display: flex;
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    white-space: normal;
  }

  .nav-link[aria-current="page"] {
    background: rgba(0, 184, 217, 0.14);
    box-shadow: inset 0 0 0 1px rgba(0, 184, 217, 0.3);
  }
}

@media (max-width: 640px) {
  main[id="main-content"] {
    padding-top: 84px;
  }

  .site-header {
    padding: 10px 10px 0;
  }

  .header-capsule {
    padding: 0 6px 0 14px;
  }

  .container {
    padding: 0 16px;
  }

  .bento-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-inner {
    padding: 36px 18px 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .brand--footer .brand-digit {
    font-size: 1.4rem;
  }

  .brand--footer .brand-cn {
    font-size: 1.05rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* ---------- 弱动效 ---------- */
@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;
    transition-delay: 0s !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}