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

/* =============================================
   CSS 变量 & 重置
   ============================================= */
:root {
  --c-primary: #80ff00;
  --c-secondary: #00ff00;
  --c-bg: #1f2617;
  --c-bg2: #161c0f;
  --c-bg3: #252e18;
  --c-surface: #2a3520;
  --c-border: #3a4a28;
  --c-text: #e8f5d0;
  --c-text-muted: #8a9e6a;
  --c-danger: #ff003c;
  --c-accent2: #d4ff00;
  --font: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --radius-card: 28px;
  --radius-sm: 8px;
  --nav-h: 64px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body, .dark-body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-secondary); }
img { max-width: 100%; height: auto; display: block; }

/* div scroll offset for sticky nav */
div[id] { scroll-margin-top: calc(var(--nav-h) + 8px); }

/* =============================================
   跑马灯
   ============================================= */
.marquee-bar {
  background: var(--c-primary);
  color: var(--c-bg);
  overflow: hidden;
  white-space: nowrap;
  height: 32px;
  display: flex;
  align-items: center;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
  z-index: 200;
}

.marquee-track {
  display: inline-flex;
  gap: 1.2em;
  animation: marqueeScroll 22s linear infinite;
  will-change: transform;
}

@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* =============================================
   Header / Nav
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(31, 38, 23, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  height: var(--nav-h);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-wrap {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  min-height: 40px;
}

.logo-mark { width: 36px; height: 36px; border-radius: 6px; }

.logo-text-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--c-primary);
  color: var(--c-bg);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 6px;
}

.main-nav {
  flex: 1;
  overflow: hidden;
}

/* 导航标签：nav > p > a */
.nav-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
}

.nav-link {
  color: var(--c-text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 10px 10px;
  border-radius: 6px;
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--c-primary);
  background: rgba(128, 255, 0, 0.08);
}

/* 搜索框 */
.header-search { flex-shrink: 0; }

.search-form {
  display: flex;
  align-items: center;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  overflow: hidden;
  height: 36px;
}

.search-input {
  background: transparent;
  border: none;
  color: var(--c-text);
  font-family: var(--font);
  font-size: 0.82rem;
  padding: 0 12px;
  width: 140px;
  outline: none;
}

.search-input::placeholder { color: var(--c-text-muted); }

.search-btn {
  background: var(--c-primary);
  border: none;
  color: var(--c-bg);
  cursor: pointer;
  font-size: 1rem;
  padding: 0 12px;
  height: 100%;
  min-width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.search-btn:hover { background: var(--c-secondary); }

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 10px 10px;
  min-height: 40px;
  min-width: 40px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* 移动端菜单 */
.mobile-menu {
  background: var(--c-bg2);
  border-top: 1px solid var(--c-border);
  padding: 12px 20px 16px;
}

.mobile-menu[hidden] { display: none; }

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

.mobile-nav-row .nav-link {
  font-size: 0.9rem;
  padding: 12px 8px;
  min-height: 44px;
  border-bottom: 1px solid var(--c-border);
}

/* =============================================
   Hero
   ============================================= */
.hero-wrap {
  position: relative;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 60px;
  overflow: hidden;
}

.hero-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 20%, rgba(128,255,0,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 80% 80%, rgba(0,255,0,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-tag {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  border: 1px solid var(--c-border);
  padding: 4px 12px;
  border-radius: 20px;
}

.sticker {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  border-radius: 4px;
}

.sticker-new {
  background: var(--c-danger);
  color: #fff;
  transform: rotate(-3deg);
  animation: jitter 3s ease-in-out infinite;
}

@keyframes jitter {
  0%, 100% { transform: rotate(-3deg) translate(0,0); }
  25% { transform: rotate(-2deg) translate(1px,-1px); }
  50% { transform: rotate(-4deg) translate(-1px,1px); }
  75% { transform: rotate(-3deg) translate(1px,0); }
}

@media (prefers-reduced-motion: reduce) {
  .sticker-new { animation: none; }
}

.hero-h1 {
  font-size: clamp(2.6rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--c-primary);
  text-shadow: 0 0 40px rgba(128,255,0,0.25);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--c-text-muted);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.btn-primary {
  background: var(--c-primary);
  color: var(--c-bg);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 30px;
  border-radius: var(--radius-card);
  border: none;
  cursor: pointer;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  letter-spacing: 0.04em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 20px rgba(128,255,0,0.3);
}

.btn-primary:hover {
  background: var(--c-secondary);
  color: var(--c-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 30px rgba(128,255,0,0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--c-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 30px;
  border-radius: var(--radius-card);
  border: 1.5px solid var(--c-primary);
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  letter-spacing: 0.04em;
  transition: background var(--transition), color var(--transition);
}

.btn-ghost:hover {
  background: rgba(128,255,0,0.1);
  color: var(--c-primary);
}

/* 装饰贴纸 */
.deco-sticker {
  position: absolute;
  font-weight: 800;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  filter: saturate(150%);
}

.deco-sticker.s1 {
  font-size: 2.5rem;
  top: 18%;
  left: 8%;
  animation: floatA 6s ease-in-out infinite;
  opacity: 0.6;
}

.deco-sticker.s2 {
  font-size: 1rem;
  font-family: var(--font);
  background: var(--c-danger);
  color: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  top: 22%;
  right: 10%;
  transform: rotate(8deg);
  animation: floatB 7s ease-in-out infinite;
  letter-spacing: 0.12em;
}

.deco-sticker.s3 {
  font-size: 0.85rem;
  font-family: var(--font);
  background: var(--c-accent2);
  color: var(--c-bg);
  padding: 3px 9px;
  border-radius: 4px;
  bottom: 20%;
  left: 12%;
  transform: rotate(-6deg);
  animation: floatA 8s ease-in-out infinite reverse;
  letter-spacing: 0.14em;
}

@keyframes floatA {
  0%, 100% { transform: translateY(0) rotate(-6deg); }
  50% { transform: translateY(-10px) rotate(-4deg); }
}

@keyframes floatB {
  0%, 100% { transform: translateY(0) rotate(8deg); }
  50% { transform: translateY(-8px) rotate(10deg); }
}

@media (prefers-reduced-motion: reduce) {
  .deco-sticker { animation: none !important; }
}

/* =============================================
   主内容区
   ============================================= */
.site-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.content-article {
  width: 100%;
}

/* content-sections: aside 在左，正文在右 */
.content-sections {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  margin-top: 0;
}

/* aside 在内容左侧 */
.content-aside {
  flex-shrink: 0;
  width: 200px;
  position: sticky;
  top: calc(var(--nav-h) + 16px);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 20px 16px;
  border-bottom: 3px solid var(--c-primary);
}

.aside-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 12px;
}

.aside-nav { border: none; }

.aside-nav dd {
  margin: 0;
  padding: 0;
}

.aside-link {
  display: block;
  color: var(--c-text-muted);
  font-size: 0.82rem;
  padding: 7px 6px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  min-height: 36px;
  display: flex;
  align-items: center;
}

.aside-link:hover {
  color: var(--c-primary);
  background: rgba(128,255,0,0.08);
}

.aside-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.72rem;
  color: var(--c-text-muted);
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 6px var(--c-primary);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@media (prefers-reduced-motion: reduce) {
  .badge-dot { animation: none; }
}

.content-body { flex: 1; min-width: 0; }

/* =============================================
   page.content 内部样式（sections）
   ============================================= */
.content-body div {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--c-border);
  position: relative;
}

.content-body div:last-child { border-bottom: none; }

/* 视差滚动占位（JS 驱动） */
.content-body div { transition: transform 0.1s linear; }

/* h2 标题 */
.content-body h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--c-primary);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  line-height: 1.15;
}

/* h2 后紧跟 hr */
.content-body h2 + hr,
.content-body h3 + hr {
  border: none;
  border-top: 2px solid var(--c-primary);
  margin: 0 0 24px;
  opacity: 0.5;
  width: 60px;
}

.content-body h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--c-accent2);
  margin: 28px 0 12px;
  letter-spacing: -0.01em;
}

.content-body p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-text);
  margin-bottom: 16px;
  max-width: 72ch;
}

.content-body ul,
.content-body ol {
  padding-left: 1.4em;
  margin-bottom: 16px;
}

.content-body li {
  line-height: 1.7;
  margin-bottom: 6px;
  color: var(--c-text);
}

.content-body a {
  color: var(--c-primary);
  border-bottom: 1px solid rgba(128,255,0,0.3);
  transition: border-color var(--transition);
}

.content-body a:hover { border-color: var(--c-primary); }

/* 卡片（page.content 内如有） */
.content-body .card,
.content-body section {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 20px;
  border-bottom: 3px solid var(--c-primary);
  transition: transform var(--transition), box-shadow var(--transition);
}

.content-body .card:hover,
.content-body section:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(128,255,0,0.12);
}

/* 交错动画 */
.content-body div {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.content-body div.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .content-body div {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* =============================================
   页脚：footer 三列 dl
   ============================================= */
.site-footer {
  background: var(--c-bg2);
  border-top: 1px solid var(--c-border);
  padding: 20px 24px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-col {
  flex: 1;
  min-width: 160px;
}

.footer-col-center {
  text-align: center;
}

.footer-col dt {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 6px;
}

.footer-col dd {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  margin: 0 0 3px;
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .header-search { display: none; }
  .nav-toggle { display: flex; }
  .site-header { height: auto; min-height: var(--nav-h); }
  .header-inner { height: var(--nav-h); }

  .content-sections {
    flex-direction: column;
  }

  .content-aside {
    width: 100%;
    position: static;
    border-radius: var(--radius-sm);
  }

  .aside-nav { display: none; }

  .aside-badge { justify-content: center; }
}

@media (max-width: 600px) {
  .hero-wrap {
    min-height: 70vh;
    padding: 60px 16px 48px;
  }

  .hero-h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .deco-sticker.s1,
  .deco-sticker.s2,
  .deco-sticker.s3 {
    display: none;
  }

  .hero-cta-row {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-ghost {
    width: 100%;
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-col {
    min-width: 0;
    width: 100%;
  }

  .site-main {
    padding: 0 12px 40px;
  }

  .content-body div {
    padding: 40px 0 32px;
  }
}

@media (max-width: 375px) {
  .search-input { width: 90px; }
}