/* ============ 设计令牌 ============ */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-surface: #1a1a28;
  --neon-purple: #8a2be2;
  --neon-purple-light: #a54de8;
  --esports-blue: #00d4ff;
  --esports-blue-dark: #0077ff;
  --vibrant-orange: #ff6a00;
  --vibrant-orange-light: #ff9a3d;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --grid-line: #2a2a3a;
  --success-green: #00ff88;
  --warning-yellow: #ffcc00;
  --glass-overlay: rgba(10, 10, 15, 0.6);
  --font-display: "Orbitron", Impact, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --content-max: 1200px;
  --container-pad: clamp(16px, 3vw, 32px);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 76px;
}

/* ============ 基础重置 ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 85% -5%, rgba(0, 119, 255, 0.14), transparent 65%),
    radial-gradient(900px 520px at -10% 12%, rgba(138, 43, 226, 0.18), transparent 60%),
    var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  text-wrap: balance;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--esports-blue);
}

a:hover {
  color: var(--vibrant-orange-light);
}

ul[class],
ol[class] {
  list-style: none;
  margin: 0;
  padding: 0;
}

::selection {
  background: rgba(138, 43, 226, 0.6);
  color: #fff;
}

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

/* ============ 无障碍与工具类 ============ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--bg-surface);
  color: var(--esports-blue);
  border: 1px solid var(--neon-purple);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform 0.3s var(--ease-out);
}

.skip-link:focus {
  transform: none;
}

/* ============ 容器与栅格 ============ */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container-wide {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-12 { grid-column: 1 / -1; }
.col-offset-2 { grid-column-start: 3; }
.col-offset-4 { grid-column-start: 5; }
.col-offset-6 { grid-column-start: 7; }

.split-20-80 {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 8fr);
  gap: clamp(20px, 3vw, 36px);
}

.split-30-70 {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
  gap: clamp(20px, 3vw, 36px);
}

.split-40-60 {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
  gap: clamp(20px, 3vw, 36px);
}

.bg-grid {
  background-image:
    linear-gradient(rgba(42, 42, 58, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 42, 58, 0.3) 1px, transparent 1px);
  background-size: 46px 46px;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), background-color 0.25s, border-color 0.25s, color 0.25s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--vibrant-orange), #e64500);
  color: #fff;
  box-shadow: 0 6px 24px rgba(255, 106, 0, 0.35);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(255, 106, 0, 0.5);
}

.btn-outline {
  border-color: var(--esports-blue);
  color: var(--esports-blue);
  background: rgba(0, 212, 255, 0.06);
}

.btn-outline:hover {
  background: rgba(0, 212, 255, 0.16);
  color: #fff;
  box-shadow: 0 0 22px rgba(0, 212, 255, 0.35);
}

/* ============ 面板与状态 ============ */
.panel {
  background: var(--bg-surface);
  border: 1px solid var(--grid-line);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 4vw, 36px);
}

.glass-panel {
  background: rgba(26, 26, 40, 0.72);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
  border: 1px solid rgba(138, 43, 226, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: 999px;
  background: rgba(0, 255, 136, 0.06);
  color: var(--success-green);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.status-chip::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
}

/* ============ 章节与正文 ============ */
.section-band {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: clamp(36px, 7vw, 72px) 0 28px;
}

.section-band::before {
  content: "";
  width: 64px;
  height: 4px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--neon-purple), var(--esports-blue));
  box-shadow: 0 0 18px rgba(138, 43, 226, 0.7);
  flex: 0 0 auto;
}

.section-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--vibrant-orange);
}

.section-title {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.section-title::after {
  content: "";
  display: block;
  width: 42px;
  height: 2px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--vibrant-orange), transparent);
}

.content-block {
  max-width: 72ch;
  color: var(--text-secondary);
  line-height: 1.7;
}

.content-block > :last-child {
  margin-bottom: 0;
}

.content-block strong {
  color: var(--text-primary);
}

.text-meta {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  color: var(--text-secondary);
}

.scan-line {
  position: relative;
  height: 1px;
  margin: 36px 0;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.4), transparent);
  border: 0;
}

.scan-line::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 70px;
  height: 2px;
  background: var(--esports-blue);
  box-shadow: 0 0 14px var(--esports-blue);
  animation: scan-move 3.2s var(--ease-out) infinite;
}

@keyframes scan-move {
  0% { left: 0; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { left: calc(100% - 70px); opacity: 0; }
}

.data-line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--grid-line);
}

.data-label {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
}

.data-value {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--esports-blue);
}

/* ============ 面包屑 ============ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.25s;
}

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

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--neon-purple);
}

/* ============ 图片容器 ============ */
.image-zone {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--grid-line);
  background:
    radial-gradient(120% 90% at 20% 0%, rgba(138, 43, 226, 0.18), transparent 55%),
    linear-gradient(145deg, rgba(26, 26, 40, 0.95), rgba(10, 10, 15, 0.9));
}

.image-zone::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 4px);
  mix-blend-mode: overlay;
  pointer-events: none;
}

.image-zone::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10, 10, 15, 0.6));
  pointer-events: none;
}

.image-zone img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-zone--hero { aspect-ratio: 21 / 9; }
.image-zone--landscape { aspect-ratio: 16 / 9; }
.image-zone--portrait { aspect-ratio: 3 / 4; }
.image-zone--avatar { aspect-ratio: 1 / 1; border-radius: 50%; }

/* ============ 滚动渐显 ============ */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

/* ============ 折叠问答 ============ */
[data-accordion] {
  border-top: 1px solid var(--grid-line);
  margin: 24px 0;
}

[data-accordion-item] {
  border-bottom: 1px solid var(--grid-line);
}

[data-accordion-trigger] {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 6px;
  background: none;
  border: 0;
  font: inherit;
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: color 0.25s, text-shadow 0.25s;
}

[data-accordion-trigger]:hover {
  color: var(--esports-blue);
  text-shadow: 0 0 12px rgba(0, 212, 255, 0.4);
}

[data-accordion-trigger]::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--neon-purple);
  transition: transform 0.35s var(--ease-out), color 0.25s;
}

[data-accordion-item][data-open] > [data-accordion-trigger]::after {
  transform: rotate(45deg);
  color: var(--vibrant-orange);
}

.js [data-accordion-panel] {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease-out);
}

.js [data-accordion-item][data-open] > [data-accordion-panel] {
  grid-template-rows: 1fr;
}

[data-accordion-panel] > * {
  overflow: hidden;
  min-height: 0;
}

/* ============ 站点头部 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.78);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
  border-bottom: 1px solid rgba(42, 42, 58, 0.9);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-purple), var(--esports-blue) 55%, var(--vibrant-orange) 110%);
  opacity: 0.85;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 24px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  flex: 0 0 auto;
}

.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  background: linear-gradient(135deg, var(--neon-purple), var(--esports-blue-dark));
  filter: drop-shadow(0 0 10px rgba(138, 43, 226, 0.55));
  transition: filter 0.3s;
}

.brand:hover .brand-mark {
  filter: drop-shadow(0 0 16px rgba(0, 212, 255, 0.7));
}

.brand-mark-ring {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(0, 212, 255, 0.9);
  transform: rotate(45deg);
}

.brand-mark-core {
  position: relative;
  width: 8px;
  height: 8px;
  background: var(--vibrant-orange);
  transform: rotate(45deg);
  box-shadow: 0 0 12px var(--vibrant-orange);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

@supports (background-clip: text) or (-webkit-background-clip: text) {
  .brand-name {
    background: linear-gradient(180deg, #fff 0%, #d8d8f2 55%, var(--neon-purple-light) 120%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--text-primary);
  }
}

.brand-sub {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--neon-purple-light);
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-sub::before {
  content: "// ";
  color: var(--vibrant-orange);
}

.brand--footer .brand-mark {
  width: 50px;
  height: 50px;
}

.brand--footer .brand-name {
  font-size: 1.45rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid rgba(0, 255, 136, 0.35);
  border-radius: 999px;
  background: rgba(0, 255, 136, 0.07);
  color: var(--success-green);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success-green);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 4px var(--success-green); opacity: 0.9; }
  50% { box-shadow: 0 0 14px var(--success-green); opacity: 1; }
}

.site-nav {
  z-index: 1;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.94rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s, background-color 0.25s, box-shadow 0.25s, text-shadow 0.25s;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(138, 43, 226, 0.14);
  box-shadow: inset 0 0 0 1px rgba(138, 43, 226, 0.4), 0 0 14px rgba(138, 43, 226, 0.2);
}

.nav-link[aria-current="page"] {
  color: var(--esports-blue);
  background: rgba(0, 212, 255, 0.1);
  box-shadow: inset 0 -2px 0 var(--esports-blue);
  text-shadow: 0 0 14px rgba(0, 212, 255, 0.45);
}

.nav-cta {
  margin-left: 8px;
  background: linear-gradient(135deg, var(--vibrant-orange), #e64500);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(255, 106, 0, 0.35);
}

.nav-cta:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--vibrant-orange-light), var(--vibrant-orange));
  box-shadow: 0 8px 26px rgba(255, 106, 0, 0.5);
}

.nav-cta[aria-current="page"] {
  background: linear-gradient(135deg, var(--vibrant-orange), #e64500);
  color: #fff;
  box-shadow: none;
  text-shadow: none;
}

.nav-toggle {
  display: none;
  position: relative;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--grid-line);
  border-radius: 12px;
  background: rgba(26, 26, 40, 0.6);
  cursor: pointer;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.nav-toggle:hover {
  border-color: var(--neon-purple);
  box-shadow: 0 0 16px rgba(138, 43, 226, 0.35);
}

.nav-toggle-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-secondary);
  transition: transform 0.3s var(--ease-out), opacity 0.3s, background-color 0.3s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ============ 页脚 ============ */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(56px, 10vw, 120px);
  background:
    radial-gradient(900px 400px at 90% 0%, rgba(0, 119, 255, 0.12), transparent 60%),
    radial-gradient(700px 360px at 10% 20%, rgba(138, 43, 226, 0.14), transparent 55%),
    var(--bg-secondary);
  border-top: 1px solid var(--grid-line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-purple), var(--esports-blue) 60%, var(--vibrant-orange));
  opacity: 0.8;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1.3fr);
  gap: clamp(28px, 4vw, 56px);
  padding-block: clamp(44px, 7vw, 72px) clamp(32px, 5vw, 52px);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.footer-trust {
  margin: 0;
  max-width: 30ch;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

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

.footer-heading {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon-purple-light);
}

.footer-links {
  display: grid;
  gap: 12px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.25s, transform 0.25s;
}

.footer-links a:hover {
  color: var(--esports-blue);
  transform: translateX(4px);
}

.footer-links a::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--neon-purple);
  border-radius: 2px;
  transform: rotate(45deg);
  flex: 0 0 auto;
  transition: background-color 0.25s, box-shadow 0.25s;
}

.footer-links a:hover::before {
  background: var(--vibrant-orange);
  box-shadow: 0 0 8px var(--vibrant-orange);
}

.footer-links--inline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.footer-links--inline a::before {
  content: "[";
  width: auto;
  height: auto;
  background: none;
  transform: none;
  color: var(--vibrant-orange);
}

.footer-links--inline a::after {
  content: "]";
  color: var(--vibrant-orange);
}

.footer-note {
  margin: 0 0 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-note-item {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.footer-note-item::before {
  content: "— ";
  color: var(--neon-purple);
}

.footer-history {
  background: linear-gradient(160deg, rgba(138, 43, 226, 0.16), rgba(0, 119, 255, 0.1));
  border: 1px solid rgba(138, 43, 226, 0.32);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.3);
}

.footer-contact {
  border-block: 1px solid rgba(42, 42, 58, 0.85);
  background: rgba(10, 10, 15, 0.4);
}

.footer-contact-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  padding-block: 16px;
  align-items: center;
}

.contact-item {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.contact-item::before {
  content: "◆";
  font-size: 0.55rem;
  color: var(--esports-blue);
}

.footer-bottom {
  background: rgba(10, 10, 15, 0.65);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 18px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.footer-bottom-inner p {
  margin: 0;
}

/* ============ 右下角联系悬浮窗 ============ */
.console-float {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 150;
  display: grid;
  justify-items: end;
  gap: 12px;
}

.console-panel {
  max-height: 0;
  width: min(320px, calc(100vw - 40px));
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
  padding: 0 20px;
  transform: translateY(10px);
  transition: max-height 0.5s var(--ease-out), opacity 0.35s ease, transform 0.45s var(--ease-out), padding 0.45s var(--ease-out), visibility 0.35s;
}

.console-float[data-open] .console-panel {
  max-height: 420px;
  padding: 20px;
  opacity: 1;
  visibility: visible;
  transform: none;
}

.console-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  color: var(--text-primary);
}

.console-title::after {
  content: " ▍";
  color: var(--vibrant-orange);
}

.console-meta {
  margin: 0 0 18px;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.console-toggle {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, 0.5);
  background: linear-gradient(135deg, var(--neon-purple), var(--esports-blue-dark));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 30px rgba(138, 43, 226, 0.45);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}

.console-toggle:hover {
  transform: scale(1.06);
  box-shadow: 0 14px 36px rgba(0, 212, 255, 0.4);
}

.console-toggle-icon {
  display: inline-block;
  font-style: normal;
  line-height: 1;
}

.console-toggle-dot {
  position: absolute;
  top: 7px;
  right: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success-green);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

/* ============ 回顶扫描环 ============ */
.back-top {
  --progress: 0%;
  position: fixed;
  left: 28px;
  bottom: 28px;
  z-index: 150;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(138, 43, 226, 0.45);
  background: var(--bg-surface);
  color: var(--esports-blue);
  cursor: pointer;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.35s ease, transform 0.4s var(--ease-out), visibility 0.35s, border-color 0.3s, box-shadow 0.3s;
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-top:hover {
  border-color: var(--esports-blue);
  box-shadow: 0 0 22px rgba(0, 212, 255, 0.4);
}

.back-top-ring {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  background: conic-gradient(var(--neon-purple) var(--progress, 0%), rgba(42, 42, 58, 0.6) 0);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  pointer-events: none;
}

.back-top-arrow {
  position: relative;
  z-index: 1;
  font-size: 18px;
  line-height: 1;
}

/* ============ 响应式 ============ */
@media (max-width: 960px) {
  .header-inner {
    gap: 12px;
  }

  .header-status {
    display: none;
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    background: rgba(10, 10, 15, 0.96);
    -webkit-backdrop-filter: blur(22px) saturate(160%);
    backdrop-filter: blur(22px) saturate(160%);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    border-bottom: 1px solid rgba(138, 43, 226, 0.4);
    transition: max-height 0.45s var(--ease-out), opacity 0.3s ease, visibility 0.3s;
  }

  [data-nav][data-open] {
    max-height: calc(100vh - var(--header-h));
    opacity: 1;
    visibility: visible;
    overflow-y: auto;
    box-shadow: 0 32px 60px rgba(0, 0, 0, 0.6);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 16px;
  }

  .nav-item {
    border-bottom: 1px solid rgba(42, 42, 58, 0.7);
  }

  .nav-item:last-child {
    border-bottom: 0;
  }

  .nav-link {
    justify-content: flex-start;
    padding: 15px 14px;
    border-radius: 10px;
    font-size: 1rem;
  }

  .nav-cta {
    margin: 14px 0 4px;
    justify-content: center;
  }
}

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .split-20-80,
  .split-30-70,
  .split-40-60 {
    grid-template-columns: 1fr;
  }

  .col-offset-2,
  .col-offset-4,
  .col-offset-6 {
    grid-column-start: auto;
  }
}

@media (max-width: 640px) {
  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .back-top {
    left: 20px;
    bottom: 20px;
  }

  .console-float {
    right: 20px;
    bottom: 20px;
  }

  .col-3,
  .col-4,
  .col-5,
  .col-6,
  .col-7,
  .col-8,
  .col-9,
  .col-12,
  .col-offset-2,
  .col-offset-4,
  .col-offset-6 {
    grid-column: 1 / -1;
  }

  .image-zone--hero {
    aspect-ratio: 16 / 9;
  }
}

/* ============ 动效偏好 ============ */
@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;
  }

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

  .status-dot,
  .console-toggle-dot {
    animation: none;
  }

  .scan-line::after {
    animation: none;
    opacity: 1;
    left: 0;
  }

  .console-panel,
  .back-top,
  .js [data-accordion-panel] {
    transition: none;
  }
}