/* ===== 免费赛场 · 全站共享层 / game-bty.com.cn ===== */

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

/* ---------- 设计变量 ---------- */
:root {
  --bg: #0a0a0a;
  --bg-panel: #161616;
  --bg-elev: #1e1e1e;
  --line: #2a2a2a;
  --line-soft: #1e1e1e;
  --text: #ffffff;
  --text-dim: #8a8a8a;
  --green: #2ee59d;
  --orange: #ff6b00;
  --purple: #b537f2;
  --grad-field: linear-gradient(135deg, #0a0a0a 0%, #0a1f0a 50%, #0a2a1a 100%);
  --grad-live: linear-gradient(90deg, #2ee59d 0%, #ff6b00 100%);
  --font-head: Impact, Haettenschweiler, "Arial Black", "Noto Sans SC", "PingFang SC", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --container: 1440px;
  --radius-pill: 999px;
  --radius-card: 16px;
  --radius-cut: 18px 6px 18px 6px;
  --shadow-float: 0 12px 36px rgba(0, 0, 0, 0.5);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 基础元素 ---------- */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-dim);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--green);
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

::selection {
  background: rgba(46, 229, 157, 0.25);
  color: var(--text);
}

:focus-visible {
  outline: 3px solid var(--purple);
  outline-offset: 3px;
}

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

.text-accent { color: var(--green); }
.text-dim { color: var(--text-dim); }
.text-orange { color: var(--orange); }
.text-purple { color: var(--purple); }

.delay-1 { transition-delay: 80ms; }
.delay-2 { transition-delay: 160ms; }
.delay-3 { transition-delay: 240ms; }

/* ---------- 标题体系 ---------- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  color: var(--text);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 0.35em;
}

h1 { font-size: clamp(38px, 6vw, 64px); }
h2 { font-size: clamp(30px, 4vw, 48px); }
h3 { font-size: 32px; }
h4 { font-size: 24px; }

.display {
  font-family: var(--font-head);
  font-size: clamp(44px, 8vw, 88px);
  line-height: 0.9;
  font-weight: 900;
  color: var(--text);
  text-transform: uppercase;
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10001;
  padding: 12px 20px;
  background: var(--green);
  color: var(--bg);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border-radius: 12px;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}

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

.skip-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--purple);
}

#main-content {
  min-height: 60vh;
  outline: none;
}

/* ---------- 容器与章节 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 40px);
}

.section {
  padding: 72px 0;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 36px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green);
}

.section-eyebrow::before {
  content: "//";
  color: var(--purple);
  font-weight: 900;
}

/* ---------- 网格 ---------- */
.grid {
  display: grid;
  gap: 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-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-8 { grid-column: span 8 / span 8; }
.col-span-9 { grid-column: span 9 / span 9; }
.col-span-12 { grid-column: 1 / -1; }

/* ---------- 页面首屏 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 80px) 0 clamp(28px, 4vw, 48px);
  background: var(--grad-field);
  border-bottom: 1px solid var(--line);
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 229, 157, 0.18), transparent 70%);
  pointer-events: none;
}

.page-hero-sub {
  margin-bottom: 10px;
}

.page-hero-title {
  font-family: var(--font-head);
  font-size: clamp(36px, 5vw, 56px);
  line-height: 0.95;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.page-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--text-dim);
}

/* ---------- 面板与卡片 ---------- */
.panel-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s ease;
}

.panel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(46, 229, 157, 0.4);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.45);
}

.panel-cut {
  position: relative;
  padding: 28px;
  background: linear-gradient(135deg, var(--bg-panel), var(--bg-elev));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 100%);
}

.panel-cut-title {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 10px;
}

/* ---------- 图片容器 ---------- */
.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-cut);
  border: 1px solid var(--line);
  background: var(--bg-panel);
  aspect-ratio: 16 / 9;
  min-height: 180px;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.frame-ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-family: var(--font-head);
  letter-spacing: 0.12em;
  font-size: 15px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--bg-panel) 0%, var(--bg-elev) 100%);
}

.frame-ph::before {
  content: attr(data-label);
}

.frame-ph::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 229, 157, 0.2), transparent 70%);
}

/* ---------- 正文排版 ---------- */
.entry-content {
  max-width: 820px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-dim);
}

.entry-content h2 {
  margin-top: 2.2em;
  margin-bottom: 0.5em;
}

.entry-content h3 {
  margin-top: 1.8em;
  margin-bottom: 0.4em;
}

.entry-content p {
  margin-bottom: 1.2em;
}

.entry-content a {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.entry-content ul,
.entry-content ol {
  margin: 0 0 1.2em 1.4em;
}

.entry-content li {
  margin-bottom: 0.5em;
}

.entry-content blockquote {
  margin: 1.5em 0;
  padding: 16px 20px;
  border-left: 3px solid var(--green);
  background: var(--bg-panel);
  border-radius: 0 12px 12px 0;
  color: var(--text);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  font-size: 14px;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin: 0 10px;
  color: var(--text-dim);
}

.breadcrumb-link {
  color: var(--text-dim);
  text-decoration: none;
}

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

.breadcrumb-item[aria-current="page"] {
  color: var(--text);
  font-weight: 500;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn:active {
  transform: scale(0.97);
}

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

.btn-primary:hover {
  box-shadow: 0 8px 28px rgba(46, 229, 157, 0.35);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

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

.btn-outline {
  background: transparent;
  color: var(--green);
  border-color: var(--green);
}

.btn-outline:hover {
  background: rgba(46, 229, 157, 0.1);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: var(--bg-elev);
  color: var(--text-dim);
  border: 1px solid var(--line);
}

.tag-live {
  color: var(--green);
  border-color: rgba(46, 229, 157, 0.4);
  background: rgba(46, 229, 157, 0.08);
}

.tag-update {
  color: var(--orange);
  border-color: rgba(255, 107, 0, 0.4);
  background: rgba(255, 107, 0, 0.08);
}

.tag-tech {
  color: var(--purple);
  border-color: rgba(181, 55, 242, 0.4);
  background: rgba(181, 55, 242, 0.08);
}

/* ---------- 数据面板 ---------- */
.data-label {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.data-value {
  display: block;
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.data-value em {
  color: var(--green);
  font-style: normal;
}

.data-unit {
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--text-dim);
  margin-left: 4px;
}

/* ---------- 装饰纹理 ---------- */
.glow-line {
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--grad-live);
  box-shadow: 0 0 18px rgba(46, 229, 157, 0.3);
}

.speed-lines {
  background-image: repeating-linear-gradient(-35deg, transparent 0 20px, rgba(255, 255, 255, 0.035) 20px 21px);
}

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 10px 16px;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.progress-track {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--grad-live);
  transform: scaleX(0);
  transform-origin: left center;
  z-index: 2;
  transition: transform 0.1s linear;
}

.header-capsule {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  max-width: calc(var(--container) - 32px);
  margin-inline: auto;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-badge {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--green), var(--purple));
  color: var(--bg);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transform: rotate(-8deg);
  box-shadow: 0 4px 18px rgba(46, 229, 157, 0.3);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.brand-sub {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  white-space: nowrap;
}

.nav-capsule {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline: auto;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 4px;
}

.nav-capsule a {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  text-decoration: none;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: background 0.25s ease, color 0.25s ease;
}

.nav-capsule a:hover {
  background: var(--bg-elev);
  color: var(--text);
}

.nav-capsule a[aria-current="page"] {
  background: var(--green);
  color: var(--bg);
  box-shadow: 0 4px 18px rgba(46, 229, 157, 0.3);
}

.nav-capsule a[aria-current="page"]:hover {
  background: var(--green);
  color: var(--bg);
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--bg-panel);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: pulse-live 2.2s ease-in-out infinite;
}

@keyframes pulse-live {
  0%, 100% {
    box-shadow: 0 0 0 3px rgba(46, 229, 157, 0.25);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(46, 229, 157, 0);
  }
}

.btn-header-cta {
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

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

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

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

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

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

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 96px;
  background: var(--grad-field);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, transparent 0 22px, rgba(46, 229, 157, 0.03) 22px 23px);
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green) 0%, rgba(46, 229, 157, 0.2) 40%, var(--purple) 100%);
}

.footer-container {
  max-width: calc(var(--container) - 32px);
  margin-inline: auto;
  padding: 64px 16px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
}

.footer-brand {
  margin-bottom: 4px;
}

.footer-trust {
  margin-top: 16px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-dim);
}

.footer-domain {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-panel);
  font-family: var(--font-num);
  font-size: 14px;
}

.domain-label {
  color: var(--text-dim);
}

.domain-value {
  color: var(--green);
  font-weight: 700;
}

.footer-nav-col,
.footer-contact-col {
  min-width: 0;
}

.footer-col-title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.col-index {
  color: var(--green);
  font-family: var(--font-num);
  font-size: 13px;
  margin-right: 8px;
}

.footer-link-list {
  display: grid;
  gap: 10px;
}

.footer-link-list a {
  color: var(--text-dim);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-link-list a:hover {
  color: var(--green);
  padding-left: 4px;
}

.footer-contact-list {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.contact-tag {
  flex: 0 0 auto;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--bg-panel);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.contact-value {
  font-size: 15px;
  color: var(--text);
  line-height: 1.5;
  word-break: break-all;
}

.footer-note {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 16px;
  background: rgba(0, 0, 0, 0.35);
}

.footer-bottom-inner {
  max-width: calc(var(--container) - 32px);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
}

.footer-copyright,
.footer-icp {
  font-size: 14px;
  color: var(--text-dim);
}

/* ---------- 返回顶部 ---------- */
.top-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 2000;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--green);
  color: var(--bg);
  border: none;
  box-shadow: 0 8px 28px rgba(46, 229, 157, 0.4);
  cursor: pointer;
  opacity: 0;
  transform: translateY(24px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.top-btn.is-shown {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.top-btn:hover {
  background: var(--text);
}

.top-btn:active {
  transform: scale(0.96);
}

.top-btn-icon {
  display: inline-block;
  font-size: 20px;
  font-weight: 900;
}

/* ---------- 折叠面板 ---------- */
[data-accordion-button] {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 10px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

[data-accordion-button]::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 22px;
  color: var(--green);
  transition: transform 0.25s ease;
}

[data-accordion-button][aria-expanded="true"]::after {
  transform: rotate(45deg);
}

[data-accordion-panel] {
  animation: accordion-drop 0.32s var(--ease-out);
  padding: 12px 0;
}

@keyframes accordion-drop {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 显现动画 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* ---------- 响应式：平板与移动导航 ---------- */
@media (max-width: 1199px) and (min-width: 992px) {
  .header-status {
    padding: 6px 10px;
  }

  .status-copy {
    display: none;
  }
}

@media (max-width: 991px) {
  .site-header {
    padding: 10px 16px;
  }

  .header-capsule {
    flex-wrap: wrap;
    position: relative;
    gap: 8px;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header-status,
  .btn-header-cta {
    display: none;
  }

  .nav-capsule {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: rgba(22, 22, 22, 0.98);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 10px;
    box-shadow: var(--shadow-float);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

  .nav-capsule[data-open] {
    display: flex;
  }

  .nav-capsule a {
    padding: 12px 16px;
    border-radius: 12px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .col-span-4,
  .col-span-6,
  .col-span-8,
  .col-span-9 {
    grid-column: span 12 / span 12;
  }

  .section {
    padding: 56px 0;
  }
}

@media (max-width: 1100px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 767px) {
  .brand-badge {
    width: 36px;
    height: 36px;
    font-size: 16px;
    border-radius: 12px;
  }

  .brand-name {
    font-size: 20px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .grid-12 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 40px 0;
  }

  .panel-card,
  .panel-cut {
    padding: 22px;
  }
}

@media (max-width: 640px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 32px;
  }

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

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

  .status-dot {
    animation: none;
  }

  .progress-track {
    transition: none;
  }
}