@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@300;400;500;600;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ===========================
   CSS 变量 & 基础重置
   =========================== */
:root {
  --c-pri: #80ff00;
  --c-sec: #00ff00;
  --c-bg: #1f2617;
  --c-bg2: #161d0f;
  --c-bg3: #252e18;
  --c-text: #e8f5c0;
  --c-text-dim: #9ab870;
  --c-glass: rgba(128, 255, 0, 0.07);
  --c-glass-border: rgba(128, 255, 0, 0.22);
  --c-overlay: rgba(31, 38, 23, 0.75);
  --radius: 10px;
  --nav-h: 56px;
  --sticky-h: 44px;
  --font-main: 'Archivo', 'Space Grotesk', system-ui, sans-serif;
  --font-alt: 'Space Grotesk', 'Archivo', monospace;
  --scroll-mt: calc(var(--nav-h) + var(--sticky-h) + 8px);
  --transition: 0.22s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  font-size: 17px;
  background: var(--c-bg2);
  color: var(--c-text);
}

body {
  font-family: var(--font-main);
  line-height: 1.65;
  background: var(--c-bg);
  min-height: 100vh;
  overflow-x: hidden;
  filter: saturate(1.08);
}

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

a {
  color: var(--c-pri);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--c-sec); }

ol, ul { list-style: none; }

/* ===========================
   跑马灯动画
   =========================== */
@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes jitter {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  20%       { transform: translate(-2px, 1px) rotate(-0.8deg); }
  40%       { transform: translate(2px, -1px) rotate(0.6deg); }
  60%       { transform: translate(-1px, 2px) rotate(-0.4deg); }
  80%       { transform: translate(1px, -2px) rotate(0.3deg); }
}

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes glitch-pop {
  0%, 90%, 100% { transform: scale(1) rotate(-3deg); }
  92%           { transform: scale(1.12) rotate(4deg) skewX(3deg); }
  95%           { transform: scale(0.95) rotate(-2deg) skewX(-2deg); }
}

/* ===========================
   站点包装
   =========================== */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===========================
   顶部 Header
   =========================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-bg2);
  border-bottom: 2px solid var(--c-pri);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 clamp(12px, 4vw, 32px);
  gap: 12px;
}

.header-left { flex: 0 0 auto; }
.header-center {
  flex: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.2;
}

.header-right { flex: 0 0 auto; }

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo { height: 36px; width: auto; }

.logo-text {
  font-family: var(--font-alt);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-pri);
  letter-spacing: 0.04em;
}

.brand-label {
  font-family: var(--font-alt);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-pri);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand-tag {
  font-size: 0.65rem;
  color: var(--c-text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ===========================
   汉堡按钮
   =========================== */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1.5px solid var(--c-glass-border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-pri);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===========================
   粘性锚点导航条
   =========================== */
.sticky-nav {
  background: var(--c-bg3);
  border-top: 1px solid var(--c-glass-border);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.sticky-nav::-webkit-scrollbar { display: none; }

.sticky-nav ol {
  display: flex;
  align-items: stretch;
  height: var(--sticky-h);
  white-space: nowrap;
  padding: 0 clamp(8px, 3vw, 24px);
  gap: 0;
}

.sticky-nav ol li { display: flex; align-items: stretch; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 12px;
  height: 100%;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  min-height: 44px;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--c-pri);
  border-bottom-color: var(--c-pri);
  background: rgba(128, 255, 0, 0.06);
}

.nav-icon {
  font-style: normal;
  font-size: 0.75rem;
  opacity: 0.7;
}

/* ===========================
   Hero 区
   =========================== */
.hero-band {
  position: relative;
  background: var(--c-bg2);
  min-height: 45vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: clamp(20px, 5vw, 60px);
  padding: clamp(32px, 6vh, 64px) clamp(16px, 6vw, 72px);
  flex: 1;
  position: relative;
  z-index: 2;
}

.hero-text {
  flex: 1 1 55%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}

.hero-h1 {
  font-family: var(--font-alt);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 700;
  color: var(--c-pri);
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-shadow: 0 0 40px rgba(128, 255, 0, 0.35);
  animation: reveal-up 0.7s ease both;
}

.hero-sub {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--c-text-dim);
  max-width: 420px;
  animation: reveal-up 0.7s 0.12s ease both;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--c-pri);
  color: var(--c-bg);
  font-family: var(--font-alt);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  text-transform: uppercase;
  align-self: flex-start;
  min-height: 44px;
  box-shadow: 0 4px 24px rgba(128, 255, 0, 0.3);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  animation: reveal-up 0.7s 0.22s ease both;
}

.hero-cta:hover {
  background: var(--c-sec);
  color: var(--c-bg);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 32px rgba(0, 255, 0, 0.4);
}

.hero-media {
  flex: 0 1 40%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-img {
  border-radius: var(--radius);
  max-height: 38vh;
  object-fit: cover;
  box-shadow: 4px 4px 0 var(--c-pri), 0 8px 40px rgba(0,0,0,0.5);
  transform: rotate(1.5deg);
  transition: transform var(--transition);
}

.hero-img:hover { transform: rotate(0deg) scale(1.02); }

.hero-placeholder {
  width: 200px;
  height: 200px;
  background: var(--c-glass);
  border: 2px dashed var(--c-glass-border);
  border-radius: var(--radius);
  transform: rotate(2deg);
}

.glitch-txt {
  font-size: 4rem;
  animation: glitch-pop 3s infinite;
  display: block;
}

/* 斜切分割色带 */
.hero-slash {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 56px;
  background: var(--c-bg);
  clip-path: polygon(0 40%, 100% 0%, 100% 100%, 0% 100%);
  z-index: 3;
}

/* ===========================
   跑马灯
   =========================== */
.marquee-band {
  background: var(--c-pri);
  overflow: hidden;
  padding: 8px 0;
  position: relative;
  z-index: 2;
}

.marquee-track {
  display: flex;
  gap: 40px;
  width: max-content;
  animation: marquee-scroll 18s linear infinite;
}

.marquee-track span {
  font-family: var(--font-alt);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--c-bg);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  white-space: nowrap;
}

/* ===========================
   主内容区
   =========================== */
.site-main {
  flex: 1;
  padding: clamp(24px, 5vh, 60px) clamp(12px, 4vw, 32px);
}

.content-wrap {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: clamp(16px, 3vw, 36px);
}

/* ===========================
   侧边栏 aside（内容左侧）
   =========================== */
.content-aside {
  flex: 0 0 200px;
  position: sticky;
  top: calc(var(--nav-h) + var(--sticky-h) + 16px);
  align-self: flex-start;
}

.aside-inner {
  background: var(--c-glass);
  border: 1.5px solid var(--c-glass-border);
  border-radius: var(--radius);
  padding: 18px 14px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}

.aside-title {
  font-family: var(--font-alt);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-pri);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--c-glass-border);
  padding-bottom: 8px;
}

.aside-nav { display: flex; flex-direction: column; gap: 4px; }

.aside-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  font-size: 0.78rem;
  color: var(--c-text-dim);
  border-radius: 6px;
  min-height: 34px;
  transition: background var(--transition), color var(--transition);
}

.aside-link:hover {
  background: rgba(128, 255, 0, 0.1);
  color: var(--c-pri);
}

.aside-num {
  font-family: var(--font-alt);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--c-bg);
  background: var(--c-pri);
  border-radius: 4px;
  padding: 1px 5px;
  min-width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.aside-sticker {
  position: absolute;
  top: -6px;
  right: -6px;
  background: #ff003c;
  color: #fff;
  font-family: var(--font-alt);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 7px;
  border-radius: 4px;
  transform: rotate(8deg);
  animation: jitter 4s infinite;
  box-shadow: 0 2px 8px rgba(255,0,60,0.4);
}

/* ===========================
   正文主容器（article）
   =========================== */
.content-main { flex: 1 1 0; min-width: 0; }

.page-content-section { width: 100%; }

.page-article {
  line-height: 1.8;
  color: var(--c-text);
}

/* 正文内部元素样式 */
.page-article h1,
.page-article h2,
.page-article h3,
.page-article h4 {
  font-family: var(--font-alt);
  font-weight: 700;
  color: var(--c-pri);
  margin: 2em 0 0.75em;
  line-height: 1.25;
}

.page-article h1 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.page-article h2 { font-size: clamp(1.25rem, 2.5vw, 1.85rem); }
.page-article h3 { font-size: clamp(1.05rem, 2vw, 1.4rem); }

.page-article h2 > span,
.page-article h3 > span {
  display: inline;
  border-bottom: 2px solid var(--c-sec);
  padding-bottom: 2px;
}

.page-article p {
  margin-bottom: 1.1em;
  font-size: 1rem;
}

.page-article ul,
.page-article ol {
  padding-left: 1.4em;
  margin-bottom: 1.1em;
}

.page-article li {
  margin-bottom: 0.45em;
  list-style: disc;
}

.page-article ol li { list-style: decimal; }

.page-article a {
  color: var(--c-pri);
  border-bottom: 1px solid rgba(128, 255, 0, 0.4);
  transition: border-color var(--transition), color var(--transition);
}

.page-article a:hover {
  color: var(--c-sec);
  border-bottom-color: var(--c-sec);
}

.page-article blockquote {
  border-left: 3px solid var(--c-pri);
  padding: 12px 18px;
  margin: 1.5em 0;
  background: var(--c-glass);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--c-text-dim);
}

.page-article code {
  background: var(--c-bg2);
  border: 1px solid var(--c-glass-border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.88em;
  font-family: var(--font-alt);
}

.page-article pre {
  background: var(--c-bg2);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  margin-bottom: 1.2em;
}

.page-article table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5em;
  font-size: 0.92rem;
}

.page-article th,
.page-article td {
  padding: 10px 14px;
  border: 1px solid var(--c-glass-border);
  text-align: left;
}

.page-article th {
  background: var(--c-glass);
  color: var(--c-pri);
  font-family: var(--font-alt);
}

/* 正文内 section 区块分隔 */
.page-article section {
  scroll-margin-top: var(--scroll-mt);
  padding-top: 16px;
  margin-bottom: 2.5em;
  border-top: 1px solid var(--c-glass-border);
}

.page-article section:first-child { border-top: none; }

/* ===========================
   页脚（单行极简）
   =========================== */
.site-footer {
  background: var(--c-bg2);
  border-top: 2px solid var(--c-pri);
  padding: 0 clamp(12px, 4vw, 32px);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  gap: 16px;
  flex-wrap: wrap;
  max-width: 1180px;
  margin: 0 auto;
  padding: 6px 0;
}

.footer-logo { flex-shrink: 0; }

.footer-brand-link {
  display: flex;
  align-items: center;
  min-height: 40px;
}

.footer-logo-img { height: 28px; width: auto; }

.footer-brand {
  font-family: var(--font-alt);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--c-pri);
}

.footer-nav ol {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.footer-nav li a {
  display: flex;
  align-items: center;
  padding: 0 10px;
  font-size: 0.72rem;
  color: var(--c-text-dim);
  letter-spacing: 0.04em;
  min-height: 40px;
  transition: color var(--transition);
}

.footer-nav li a:hover { color: var(--c-pri); }

.footer-copy small {
  font-size: 0.68rem;
  color: var(--c-text-dim);
  white-space: nowrap;
}

/* ===========================
   scroll-margin-top 给 section
   =========================== */
section[id] {
  scroll-margin-top: var(--scroll-mt);
}

/* ===========================
   Scroll Reveal
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   Reduced Motion
   =========================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .marquee-track { animation: none; }
  html { scroll-behavior: auto; }
}

/* ===========================
   响应式
   =========================== */
@media (max-width: 860px) {
  .content-wrap {
    flex-direction: column;
  }

  .content-aside {
    flex: none;
    width: 100%;
    position: static;
  }

  .aside-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
  }

  .aside-title { margin-bottom: 0; border: none; padding: 0; flex-shrink: 0; }

  .aside-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
  }

  .aside-sticker { display: none; }

  .footer-inner {
    height: auto;
    padding: 12px 0;
    gap: 8px;
  }

  .footer-nav ol { gap: 0; }
}

@media (max-width: 640px) {
  .hero-inner {
    flex-direction: column-reverse;
    padding: 28px 16px 48px;
    gap: 16px;
  }

  .hero-media { flex: 0 0 auto; }

  .hero-placeholder { width: 120px; height: 120px; }

  .hero-h1 { font-size: clamp(1.6rem, 8vw, 2.4rem); }

  .menu-toggle { display: flex; }

  .sticky-nav {
    display: none;
  }

  .sticky-nav.nav-open {
    display: block;
  }

  .sticky-nav ol {
    flex-direction: column;
    height: auto;
    padding: 8px 0;
  }

  .nav-link {
    padding: 10px 20px;
    min-height: 44px;
    border-bottom: 1px solid var(--c-glass-border);
    font-size: 0.9rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 16px 0;
    gap: 10px;
  }

  .footer-nav ol { gap: 0; }
}

@media (max-width: 375px) {
  html { font-size: 16px; }

  .hero-h1 { font-size: 1.55rem; }

  .hero-cta { font-size: 0.88rem; padding: 10px 20px; }

  .page-article h2 { font-size: 1.2rem; }
}