/* =========================================================
   云链赛场 · 共享样式 Site CSS
   路径：/assets/site.css
   设计母题：未来运动数据中心 | 编辑部目录 × 数据流
   ========================================================= */

/* ---------- 设计变量 ---------- */
:root {
  color-scheme: dark;

  --color-night: #0B1D3A;
  --color-night-2: #13294B;
  --color-green: #39FF88;
  --color-green-dark: #1ED96F;
  --color-orange: #FF6B35;
  --color-orange-light: #FF8C5A;
  --color-line: #2E4A7A;
  --color-text-light: #E6F1FF;
  --color-mist: #F2F5F9;
  --color-text-dark: #0D1B2A;

  --font-heading: "Archivo Black", Impact, "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "IBM Plex Mono", "Space Mono", SFMono-Regular, Consolas, "Liberation Mono", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-accent: "Playfair Display", "Times New Roman", Georgia, serif;

  --container-w: 1200px;
  --header-h: 68px;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-card: 0 1px 0 rgba(57, 255, 136, 0.06), 0 12px 32px rgba(0, 0, 0, 0.3);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  background-color: var(--color-night);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-light);
  background-color: transparent;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-text-light);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 2vw, 2rem);
}

h4 {
  font-size: 1.25rem;
}

p {
  margin: 0;
}

ul, ol {
  list-style: none;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
  cursor: pointer;
}

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

::selection {
  background: var(--color-green);
  color: var(--color-night);
}

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

/* ---------- 背景数据网格纹理 ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(ellipse at 18% -10%, rgba(57, 255, 136, 0.1), transparent 55%),
    radial-gradient(ellipse at 85% 110%, rgba(255, 107, 53, 0.08), transparent 50%),
    linear-gradient(rgba(57, 255, 136, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 136, 0.045) 1px, transparent 1px);
  background-size: auto, auto, 44px 44px, 44px 44px;
}

@keyframes grid-drift {
  from {
    background-position: 0 0, 0 0, 0 0, 0 0;
  }
  to {
    background-position: 0 0, 0 0, 44px 44px, 44px 44px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  body::before {
    animation: grid-drift 120s linear infinite;
  }
}

/* ---------- 容器与章节节奏 ---------- */
.container {
  width: min(100% - 48px, var(--container-w));
  margin-inline: auto;
}

.container--narrow {
  max-width: 860px;
}

.section {
  padding: 64px 0;
}

.section--tight {
  padding: 36px 0;
}

@media (max-width: 767px) {
  .section {
    padding: 44px 0;
  }
}

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 3000;
  padding: 10px 18px;
  background: var(--color-green);
  color: var(--color-night);
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  transform: translateY(-160%);
  transition: transform 0.25s var(--ease);
}

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

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 1600;
  pointer-events: none;
}

.scroll-progress::after {
  content: "";
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
  transform: scaleX(var(--progress, 0));
  background: linear-gradient(90deg, var(--color-green) 0%, var(--color-orange) 100%);
}

/* ---------- 顶部细声明条 ---------- */
.site-topbar {
  position: relative;
  z-index: 2;
  background: var(--color-night);
  border-bottom: 1px solid var(--color-line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 34px;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.topbar-note {
  color: var(--color-green);
  font-weight: 700;
  letter-spacing: 0.16em;
}

.topbar-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-light);
  opacity: 0.72;
  white-space: nowrap;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 10px var(--color-green);
  animation: status-pulse 2.4s ease-in-out infinite;
}

@keyframes status-pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.8);
  }
}

@media (max-width: 639px) {
  .topbar-status {
    display: none;
  }
  .topbar-inner {
    justify-content: center;
  }
}

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1200;
  background: rgba(11, 29, 58, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-h);
}

/* ---------- 品牌 ---------- */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  transition: opacity 0.2s;
}

.site-brand:hover {
  opacity: 0.85;
}

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  background: var(--color-night-2);
  border: 1px solid var(--color-line);
  transform: skewX(-14deg);
}

.brand-mark::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 55%;
  height: 100%;
  background: var(--color-green);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 7px;
  height: 7px;
  background: var(--color-orange);
  border-radius: 1px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.15;
}

.brand-text strong {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--color-text-light);
}

.brand-text small {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  opacity: 0.6;
  white-space: nowrap;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-list a {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--color-text-light);
  transition: color 0.2s;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  transform: scaleX(0);
  transform-origin: 0 100%;
  transition: transform 0.28s var(--ease);
}

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

.nav-list a:hover::after,
.nav-list a[aria-current="page"]::after {
  transform: scaleX(1);
}

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

/* ---------- 汉堡按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--color-line);
  background: var(--color-night-2);
  border-radius: var(--radius);
  color: var(--color-text-light);
  transition: border-color 0.2s, background-color 0.2s;
}

.nav-toggle:hover {
  border-color: var(--color-green);
  background: rgba(57, 255, 136, 0.08);
}

.nav-toggle-box {
  position: relative;
  display: block;
  width: 18px;
  height: 14px;
}

.nav-toggle-bar {
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--color-green);
  transition: transform 0.28s var(--ease), opacity 0.2s;
}

.nav-toggle-bar:nth-child(1) {
  top: 0;
}

.nav-toggle-bar:nth-child(2) {
  top: 6px;
}

.nav-toggle-bar:nth-child(3) {
  top: 12px;
}

.nav-toggle[data-open] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[data-open] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[data-open] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle-label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* ---------- 移动端导航 ---------- */
@media (max-width: 899px) {
  .nav-toggle {
    display: inline-flex;
  }

  .header-inner {
    min-height: 60px;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: block;
    padding: 14px 24px 24px;
    background: rgba(13, 27, 42, 0.98);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-card);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list li {
    border-bottom: 1px solid rgba(46, 74, 122, 0.45);
  }

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

  .nav-list a {
    display: block;
    padding: 14px 10px;
    font-size: 16px;
    border-left: 3px solid transparent;
  }

  .nav-list a::after {
    display: none;
  }

  .nav-list a[aria-current="page"] {
    padding-left: 14px;
    border-left-color: var(--color-green);
  }
}

@media (max-width: 479px) {
  .brand-text small {
    display: none;
  }
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 88px;
  background:
    radial-gradient(ellipse at 85% 110%, rgba(255, 107, 53, 0.12), transparent 55%),
    radial-gradient(ellipse at 5% -20%, rgba(57, 255, 136, 0.08), transparent 50%),
    var(--color-night-2);
  border-top: 1px solid var(--color-line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-green) 0%, var(--color-line) 50%, var(--color-orange) 100%);
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.75fr 0.75fr 1.4fr;
  gap: 40px;
  padding: 56px 0 44px;
}

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

.footer-desc {
  margin-top: 14px;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.72;
}

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

.footer-heading {
  position: relative;
  margin-bottom: 14px;
  padding-bottom: 8px;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-green);
  border-bottom: 1px solid var(--color-line);
}

.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 34px;
  height: 2px;
  background: var(--color-green);
}

.footer-links li + li {
  margin-top: 2px;
}

.footer-links a {
  display: inline-block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--color-text-light);
  opacity: 0.78;
  transition: color 0.2s, opacity 0.2s, transform 0.2s;
}

.footer-links a:hover {
  color: var(--color-green);
  opacity: 1;
  transform: translateX(3px);
}

.footer-meta {
  margin-top: 2px;
}

.footer-meta li {
  display: flex;
  gap: 12px;
  padding: 5px 0;
  font-size: 14px;
  opacity: 0.8;
}

.footer-meta-label {
  flex-shrink: 0;
  min-width: 2.5em;
  color: var(--color-orange);
  font-weight: 700;
}

.footer-meta-value {
  min-width: 0;
  word-break: break-all;
}

.footer-contact {
  position: relative;
}

.footer-contact .footer-meta li {
  flex-wrap: wrap;
}

.footer-contact .footer-meta-label {
  min-width: 2.5em;
}

.footer-note {
  margin-top: 16px;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.65;
  opacity: 0.86;
  background: rgba(255, 107, 53, 0.08);
  border-left: 2px solid var(--color-orange);
}

.footer-bottom {
  background: rgba(11, 29, 58, 0.55);
  border-top: 1px solid var(--color-line);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 16px 0;
  font-size: 13px;
  opacity: 0.7;
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    padding: 44px 0 36px;
  }
}

@media (max-width: 599px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 767px) {
  .site-footer {
    margin-top: 56px;
  }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--color-green);
  color: var(--color-night);
  box-shadow: 0 0 0 1px rgba(57, 255, 136, 0.25), 0 4px 14px rgba(57, 255, 136, 0.18);
  transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s var(--ease);
}

.btn:hover {
  background: var(--color-green-dark);
  box-shadow: 0 0 0 1px rgba(57, 255, 136, 0.35), 0 6px 18px rgba(57, 255, 136, 0.22);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn--ghost {
  background: transparent;
  color: var(--color-green);
  border-color: var(--color-line);
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(57, 255, 136, 0.08);
  border-color: var(--color-green);
  box-shadow: none;
}

.btn--orange {
  background: var(--color-orange);
  color: var(--color-night);
  box-shadow: 0 0 0 1px rgba(255, 107, 53, 0.25), 0 4px 14px rgba(255, 107, 53, 0.18);
}

.btn--orange:hover {
  background: var(--color-orange-light);
  box-shadow: 0 0 0 1px rgba(255, 107, 53, 0.35), 0 6px 18px rgba(255, 107, 53, 0.22);
}

.btn--sm {
  padding: 8px 14px;
  font-size: 13px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  margin-bottom: 10px;
  font-size: 13px;
  opacity: 0.68;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-line);
}

.breadcrumb a {
  color: var(--color-green);
  transition: color 0.2s;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--color-text-light);
  opacity: 1;
}

/* ---------- 页面首部 ---------- */
.page-head {
  position: relative;
  padding: 56px 0 36px;
}

.page-head::after {
  content: "";
  display: block;
  width: 76px;
  height: 4px;
  margin-top: 26px;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  transform: skewX(-24deg);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-green);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--color-green);
}

.page-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  text-transform: uppercase;
}

.page-lede {
  margin-top: 16px;
  max-width: 54em;
  font-size: 16px;
  line-height: 1.75;
  opacity: 0.75;
}

@media (max-width: 767px) {
  .page-head {
    padding: 40px 0 28px;
  }
}

/* ---------- 章节头 ---------- */
.section-head {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-line);
}

.section-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 64px;
  height: 2px;
  background: var(--color-green);
}

.section-title {
  margin: 0;
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  text-transform: uppercase;
}

.section-index {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-orange);
  white-space: nowrap;
}

.chapter-num {
  display: block;
  font-family: var(--font-accent);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(3rem, 6vw, 4.75rem);
  line-height: 0.92;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(57, 255, 136, 0.55);
}

/* ---------- 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--side {
  grid-template-columns: minmax(0, 1fr) 300px;
  align-items: start;
  gap: 40px;
}

@media (max-width: 1023px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 599px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid {
    gap: 16px;
  }
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  padding: 24px;
  overflow: hidden;
  background: var(--color-night-2);
  border: 1px solid var(--color-line);
  transition: transform 0.25s var(--ease), border-color 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(57, 255, 136, 0.5);
  box-shadow: var(--shadow-card);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  transition: width 0.3s var(--ease);
}

.card:hover::before {
  width: 100%;
}

.data-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.data-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.6;
}

.data-value {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  line-height: 1.1;
  color: var(--color-green);
}

.data-delta {
  font-size: 13px;
  color: var(--color-orange);
}

.panel-light {
  background: var(--color-mist);
  color: var(--color-text-dark);
  box-shadow: 0 0 0 1px rgba(139, 163, 194, 0.35);
}

.panel-light .data-value {
  color: var(--color-text-dark);
}

.panel-light .data-label {
  color: var(--color-text-dark);
  opacity: 0.6;
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: rgba(46, 74, 122, 0.18);
  color: var(--color-text-light);
}

.tag--green {
  border-color: rgba(57, 255, 136, 0.45);
  background: rgba(57, 255, 136, 0.12);
  color: var(--color-green);
}

.tag--orange {
  border-color: rgba(255, 107, 53, 0.5);
  background: rgba(255, 107, 53, 0.12);
  color: var(--color-orange-light);
}

/* ---------- 旁注卡 ---------- */
.note-card {
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.65;
  opacity: 0.86;
  background: rgba(57, 255, 136, 0.05);
  border-left: 3px solid var(--color-green);
}

.note-card--orange {
  background: rgba(255, 107, 53, 0.06);
  border-left-color: var(--color-orange);
}

/* ---------- 标签页 ---------- */
.tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--color-line);
}

.tab-btn {
  position: relative;
  margin-bottom: -1px;
  padding: 12px 18px 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
  opacity: 0.6;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, opacity 0.2s, border-color 0.2s;
}

.tab-btn:hover {
  color: var(--color-green);
  opacity: 1;
}

.tab-btn[aria-selected="true"] {
  color: var(--color-green);
  opacity: 1;
  border-bottom-color: var(--color-green);
}

.tab-btn[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: -2px;
  height: 2px;
  background: var(--color-orange);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
  animation: tab-rise 0.3s var(--ease);
}

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

@media (max-width: 599px) {
  .tabs-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tabs-list::-webkit-scrollbar {
    display: none;
  }

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

/* ---------- 文章索引 ---------- */
.article-list li + li {
  border-top: 1px solid var(--color-line);
}

.article-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 6px;
  transition: background 0.2s, padding-left 0.25s var(--ease);
}

.article-link:hover {
  background: rgba(57, 255, 136, 0.04);
  padding-left: 14px;
}

.article-link-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-text-light);
  transition: color 0.2s;
}

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

.article-link-meta {
  font-size: 13px;
  white-space: nowrap;
  opacity: 0.6;
}

@media (max-width: 599px) {
  .article-link {
    flex-direction: column;
    gap: 6px;
  }

  .article-link-meta {
    white-space: normal;
  }
}

/* ---------- 正文排版 ---------- */
.prose {
  max-width: 72ch;
  line-height: 1.8;
  opacity: 0.88;
}

.prose p {
  margin: 1em 0;
}

.prose h2,
.prose h3 {
  margin-top: 1.6em;
}

.prose a {
  color: var(--color-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.prose ul {
  margin: 1em 0;
  padding-left: 1.2em;
}

.prose ul li {
  position: relative;
  padding-left: 16px;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  background: var(--color-green);
  transform: skewX(-20deg);
}

.prose blockquote {
  margin: 1.4em 0;
  padding: 16px 20px;
  font-family: var(--font-accent);
  font-style: italic;
  background: rgba(255, 107, 53, 0.06);
  border-left: 3px solid var(--color-orange);
}

.prose code {
  padding: 2px 6px;
  font-size: 0.9em;
  font-family: var(--font-body);
  background: rgba(57, 255, 136, 0.1);
  border: 1px solid rgba(57, 255, 136, 0.25);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.prose th,
.prose td {
  padding: 10px 12px;
  text-align: left;
  border: 1px solid var(--color-line);
}

.prose th {
  background: var(--color-night-2);
  color: var(--color-green);
}

/* ---------- 图片容器 ---------- */
.img-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-night-2);
  border: 1px solid var(--color-line);
  isolation: isolate;
}

.img-frame::before {
  content: "";
  display: block;
  padding-top: 62.5%;
}

.img-frame > img,
.img-frame > picture,
.img-frame > video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 0%, transparent 46%, rgba(57, 255, 136, 0.14) 46%, rgba(57, 255, 136, 0.02) 52%, transparent 52%, transparent 76%, rgba(255, 107, 53, 0.12) 76%, transparent 82%),
    radial-gradient(circle at 15% 18%, rgba(57, 255, 136, 0.14), transparent 45%),
    repeating-linear-gradient(0deg, rgba(46, 74, 122, 0.28) 0, rgba(46, 74, 122, 0.28) 1px, transparent 1px, transparent 14px);
}

.img-frame--wide::before {
  padding-top: 42%;
}

.img-frame--portrait::before {
  padding-top: 133%;
}

.img-frame--card::before {
  padding-top: 75%;
}

/* ---------- 装饰与分隔 ---------- */
.speed-strip {
  display: block;
  height: 3px;
  border: 0;
  opacity: 0.6;
  background: repeating-linear-gradient(
    115deg,
    var(--color-green) 0 12px,
    transparent 12px 24px,
    var(--color-orange) 24px 36px,
    transparent 36px 56px
  );
}

.section-divider {
  height: 1px;
  margin: 32px 0;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--color-line) 20%, var(--color-line) 80%, transparent);
}

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

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

/* ---------- Reduced Motion ---------- */
@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: 0ms !important;
  }

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

  .card:hover {
    transform: none;
  }
}