/* ==========================================================
   8868体育 · 全站共享样式 / assets/site.css
   竞技数据轨道视觉系统
   ========================================================== */

/* ---------- 变量 ---------- */
:root {
  --navy: #0A192F;
  --orange: #FF6B35;
  --slate: #2E3A4A;
  --green: #6B8E6B;
  --cream: #F5F0E6;
  --gold: #C9A227;
  --deep: #121820;
  --smoke: #DCE3EA;

  --font-head: Impact, 'Arial Black', sans-serif;
  --font-body: 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --font-mono: 'Consolas', 'Courier New', monospace;

  --topbar-h: 62px;
  --strip-h: 36px;
  --sidebar-w: 252px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --content-w: 1280px;
  --line-rule: rgba(201, 162, 39, 0.18);
  --line-faint: rgba(220, 227, 234, 0.12);
  --shadow-panel: 0 12px 44px rgba(3, 8, 18, 0.55);
  --ease-nav: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--cream);
  background-color: var(--navy);
  background-image:
    repeating-linear-gradient(0deg, rgba(220, 227, 234, 0.022) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(220, 227, 234, 0.016) 0 1px, transparent 1px 88px);
  -webkit-font-smoothing: antialiased;
}

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

ul,
ol {
  list-style: none;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
}

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 基础排版 ---------- */
h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--cream);
}

h2 {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 2.8vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--cream);
}

h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  color: var(--smoke);
}

p {
  margin-bottom: 1rem;
}

.site-main a {
  color: var(--orange);
}

.site-main a:hover {
  color: #ff8a5c;
}

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

.skip-link {
  position: fixed;
  top: -72px;
  left: 1rem;
  z-index: 1200;
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.4rem;
  background: var(--orange);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  box-shadow: 0 6px 24px rgba(255, 107, 53, 0.4);
  transition: top 0.25s ease;
}

.skip-link:focus-visible {
  top: 0;
}

/* ---------- 头部框架 ---------- */
.site-header {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
}

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 1.1rem;
  padding: 0 1.5rem;
  background: rgba(10, 25, 47, 0.93);
  border-bottom: 1px solid var(--line-rule);
  pointer-events: auto;
  z-index: 3;
}

.topbar::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange) 0%, rgba(255, 107, 53, 0.12) 34%, transparent 100%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-right: auto;
  white-space: nowrap;
}

.brand-code {
  font-family: var(--font-mono);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--orange);
  border: 1px solid rgba(255, 107, 53, 0.55);
  background: rgba(255, 107, 53, 0.08);
  border-radius: 4px;
  padding: 0.18rem 0.5rem;
}

.brand-name {
  font-family: var(--font-head);
  font-size: 1.45rem;
  letter-spacing: 0.08em;
  color: var(--cream);
  line-height: 1;
}

.brand-suffix {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--gold);
  border-left: 1px solid rgba(201, 162, 39, 0.35);
  padding-left: 0.5rem;
  margin-left: 0.3rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.mono-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, 0.3);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  opacity: 0.85;
  white-space: nowrap;
}

.topbar-search,
.topbar-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  border: 1px solid var(--line-faint);
  border-radius: 999px;
  background: rgba(46, 58, 74, 0.35);
  color: var(--smoke);
  user-select: none;
  cursor: default;
  transition: border-color 0.2s, color 0.2s;
}

.topbar-search {
  width: 36px;
  padding: 0;
}

.topbar-search svg {
  display: block;
}

.topbar-login {
  padding: 0 1.1rem;
  font-size: 0.8rem;
  font-weight: 600;
}

.topbar-search:hover,
.topbar-login:hover {
  border-color: rgba(255, 107, 53, 0.6);
  color: var(--orange);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 11px;
  border: 1px solid var(--line-faint);
  border-radius: 10px;
  background: rgba(46, 58, 74, 0.4);
  transition: border-color 0.25s, background 0.25s;
}

.nav-toggle:hover {
  border-color: var(--orange);
  background: rgba(46, 58, 74, 0.6);
}

.toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--cream);
  transition: transform 0.3s var(--ease-nav), opacity 0.2s;
}

.site-header[data-open="true"] .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header[data-open="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header[data-open="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 侧边导览 */
.site-nav {
  position: absolute;
  top: var(--topbar-h);
  bottom: 0;
  left: 0;
  width: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(180deg, rgba(10, 25, 47, 0.25), transparent 30%),
    var(--slate);
  border-right: 1px solid var(--line-rule);
  pointer-events: auto;
  z-index: 2;
}

.nav-list {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  padding: 1.25rem 0;
  overflow-y: auto;
}

.nav-item {
  position: relative;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.8rem 1.35rem;
  color: var(--smoke);
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  border-left: 2px solid transparent;
  transition: color 0.25s, background 0.25s, padding-left 0.25s, border-color 0.25s;
}

.nav-link:hover {
  color: var(--cream);
  background: rgba(10, 25, 47, 0.25);
  border-left-color: var(--gold);
  padding-left: 1.6rem;
}

.nav-link[aria-current="page"] {
  color: var(--orange);
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.12), transparent 80%);
  border-left-color: var(--orange);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  min-width: 1.4rem;
  transition: color 0.25s;
}

.nav-link[aria-current="page"] .nav-index {
  color: var(--orange);
  font-weight: 700;
}

.nav-label {
  flex: 1;
}

.nav-slash {
  display: block;
  width: 26px;
  height: 2px;
  background: repeating-linear-gradient(135deg, rgba(255, 107, 53, 0.5) 0 4px, transparent 4px 8px);
  opacity: 0.3;
  transition: opacity 0.25s;
}

.nav-link:hover .nav-slash,
.nav-link[aria-current="page"] .nav-slash {
  opacity: 1;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.35rem;
  border-top: 1px solid var(--line-rule);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--smoke);
  letter-spacing: 0.05em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px rgba(107, 142, 107, 0.8);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

.status-code {
  margin-left: auto;
  color: var(--gold);
  opacity: 0.7;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.55;
    transform: scale(0.82);
  }
}

/* 订阅提示条 */
.subscribe-strip {
  position: absolute;
  top: var(--topbar-h);
  right: 0;
  left: var(--sidebar-w);
  height: var(--strip-h);
  display: flex;
  align-items: stretch;
  background: linear-gradient(90deg, rgba(46, 58, 74, 0.92), rgba(33, 42, 54, 0.72));
  border-bottom: 1px solid var(--line-rule);
  pointer-events: auto;
  z-index: 2;
}

.subscribe-strip::before {
  content: '';
  width: 3px;
  flex: 0 0 3px;
  background: var(--orange);
}

.subscribe-strip a {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0 1.25rem;
  font-size: 0.78rem;
  color: var(--smoke);
  transition: color 0.2s, background 0.2s;
}

.subscribe-strip a:hover {
  color: var(--cream);
  background: rgba(255, 107, 53, 0.06);
}

.subscribe-code {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--orange);
  border: 1px solid rgba(255, 107, 53, 0.4);
  border-radius: 3px;
  padding: 0 0.3rem;
  line-height: 1.5;
}

.subscribe-arrow {
  color: var(--orange);
  margin-left: 0.25rem;
}

/* 滚动进度 */
.header-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  z-index: 1105;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.6);
  pointer-events: none;
  transition: width 0.15s linear;
}

/* ---------- 主内容布局 ---------- */
.site-main {
  margin-left: var(--sidebar-w);
  padding-top: calc(var(--topbar-h) + var(--strip-h));
  min-height: 100vh;
}

.page-container {
  max-width: var(--content-w);
  margin-inline: auto;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 3vw, 2.5rem);
}

.content-narrow {
  max-width: 820px;
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.8rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--smoke);
}

.breadcrumbs a {
  color: var(--gold);
}

.breadcrumbs a:hover {
  color: var(--orange);
}

.breadcrumb-sep {
  color: rgba(220, 227, 234, 0.35);
}

.breadcrumbs [aria-current="page"] {
  color: var(--orange);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.72rem 1.5rem;
  font-size: 0.92rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--orange);
  color: var(--navy);
  box-shadow: 0 4px 22px rgba(255, 107, 53, 0.28);
}

.btn-primary:hover {
  background: #ff8a5c;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--smoke);
  border-color: rgba(220, 227, 234, 0.35);
}

.btn-ghost:hover {
  color: var(--orange);
  border-color: var(--orange);
  transform: translateY(-2px);
}

/* ---------- 章节标题 ---------- */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 2.2rem;
}

.section-head::after {
  content: '';
  width: 64px;
  height: 3px;
  background: var(--orange);
  margin-top: 0.45rem;
}

.section-code {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--cream);
}

/* ---------- 展览标签 / 卡片 ---------- */
.exhibit-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.28rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, 0.35);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: rgba(201, 162, 39, 0.06);
}

.exhibit-code {
  color: var(--orange);
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  text-transform: uppercase;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.4rem;
}

.ticket-card {
  background: linear-gradient(160deg, #152033, var(--deep));
  border: 1px solid var(--line-faint);
  border-radius: var(--radius-md);
  border-top: 3px solid rgba(255, 107, 53, 0.4);
  padding: 1.5rem;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.ticket-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--orange);
  box-shadow: 0 10px 30px rgba(3, 8, 18, 0.5);
}

.card-title {
  font-family: var(--font-head);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: var(--cream);
  margin-bottom: 0.5rem;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--smoke);
  line-height: 1.7;
}

/* ---------- 视觉容器 ---------- */
.visual-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(46, 58, 74, 0.9), rgba(10, 25, 47, 0.95));
  border: 1px solid var(--line-faint);
}

.visual-frame::before {
  content: '';
  display: block;
  padding-top: 56.25%;
}

.visual-frame[data-ratio="wide"]::before {
  padding-top: 45%;
}

.visual-frame[data-ratio="tall"]::before {
  padding-top: 125%;
}

.visual-frame[data-ratio="square"]::before {
  padding-top: 100%;
}

.visual-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0 8px, transparent 8px 16px),
    radial-gradient(circle at 68% 58%, rgba(255, 107, 53, 0.12), transparent 62%);
  pointer-events: none;
}

.visual-frame img,
.visual-frame svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.frame-code {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--cream);
  background: rgba(10, 25, 47, 0.78);
  border: 1px solid rgba(201, 162, 39, 0.35);
  padding: 0.18rem 0.55rem;
  border-radius: 3px;
}

/* ---------- 分隔线 ---------- */
.rule-diagonal {
  height: 18px;
  border: none;
  background: repeating-linear-gradient(135deg, rgba(255, 107, 53, 0.5) 0 12px, transparent 12px 24px);
  opacity: 0.25;
  margin: 2.5rem 0;
}

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-nav), transform 0.6s var(--ease-nav);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-left: var(--sidebar-w);
  background: var(--deep);
  border-top: 1px solid rgba(201, 162, 39, 0.22);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange) 0%, transparent 55%);
}

.footer-frame {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  max-width: var(--content-w);
  margin-inline: auto;
  padding: 2.8rem clamp(1rem, 3vw, 2.5rem) 2rem;
}

.footer-brand-zone {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-wordmark {
  font-family: var(--font-head);
  font-size: 1.4rem;
  letter-spacing: 0.06em;
  color: var(--cream);
}

.footer-wordmark-accent {
  color: var(--orange);
}

.footer-desc {
  font-size: 0.83rem;
  color: var(--smoke);
  line-height: 1.75;
  opacity: 0.8;
}

.footer-cert {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, 0.35);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  align-self: flex-start;
  white-space: nowrap;
}

.footer-nav-zone,
.footer-contact-zone {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-heading {
  font-family: var(--font-head);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--cream);
  text-transform: uppercase;
}

.footer-heading::after {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--orange);
  margin-top: 0.35rem;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.footer-nav-list a {
  font-size: 0.85rem;
  color: var(--smoke);
  transition: color 0.2s, padding-left 0.2s;
}

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

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.82rem;
  color: var(--smoke);
}

.contact-code {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, 0.3);
  border-radius: 3px;
  padding: 0 0.35rem;
  white-space: nowrap;
  line-height: 1.6;
}

.contact-text {
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  max-width: var(--content-w);
  margin-inline: auto;
  padding: 1rem clamp(1rem, 3vw, 2.5rem);
  border-top: 1px solid rgba(220, 227, 234, 0.1);
}

.footer-copyright,
.footer-icp {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(220, 227, 234, 0.6);
}

.footer-icp {
  letter-spacing: 0.06em;
}

/* ---------- 响应式 · 平板 ---------- */
@media (min-width: 768px) and (max-width: 1023px) {
  :root {
    --sidebar-w: 84px;
  }

  .brand-name {
    font-size: 1.2rem;
  }

  .brand-suffix {
    display: none;
  }

  .mono-index {
    display: none;
  }

  .nav-link {
    justify-content: center;
    gap: 0;
    padding: 0.9rem 0.5rem;
  }

  .nav-label {
    display: none;
  }

  .nav-slash {
    display: none;
  }

  .nav-index {
    min-width: auto;
    font-size: 0.85rem;
  }

  .nav-status {
    flex-direction: column;
    gap: 0.35rem;
    text-align: center;
    padding: 1rem 0.5rem;
  }

  .status-text {
    display: none;
  }

  .status-code {
    margin-left: 0;
    font-size: 0.68rem;
    letter-spacing: 0.1em;
  }

  .footer-frame {
    grid-template-columns: 1.2fr 1fr;
  }

  .footer-brand-zone {
    grid-column: 1 / -1;
  }
}

/* ---------- 响应式 · 手机 ---------- */
@media (max-width: 767px) {
  :root {
    --topbar-h: 56px;
  }

  .topbar {
    padding: 0 0.85rem;
    gap: 0.7rem;
  }

  .brand-code {
    font-size: 0.95rem;
    padding: 0.1rem 0.4rem;
  }

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

  .brand-suffix {
    display: none;
  }

  .mono-index,
  .topbar-login {
    display: none;
  }

  .topbar-search {
    width: 34px;
    height: 34px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-header[data-open="true"] {
    pointer-events: auto;
  }

  .site-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(5, 12, 24, 0.68);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
  }

  .site-header[data-open="true"]::before {
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav {
    position: absolute;
    top: var(--topbar-h);
    bottom: auto;
    left: 0;
    width: min(86vw, 340px);
    max-height: calc(100vh - var(--topbar-h));
    border-radius: 0 0 16px 0;
    box-shadow: var(--shadow-panel);
    transform: translateX(-108%);
    transition: transform 0.38s var(--ease-nav);
  }

  .site-header[data-open="true"] .site-nav {
    transform: translateX(0);
  }

  .subscribe-strip {
    display: none;
  }

  .site-main {
    margin-left: 0;
    padding-top: var(--topbar-h);
  }

  .site-footer {
    margin-left: 0;
  }

  .footer-frame {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-top: 2.2rem;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

@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;
  }

  .status-dot {
    animation: none;
  }

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