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

/* ===== 变量 ===== */
:root {
  --c-lime: #80ff00;
  --c-green: #00ff00;
  --c-dark: #1f2617;
  --c-dark2: #141a0e;
  --c-dark3: #2a3520;
  --c-lime-dim: rgba(128,255,0,0.12);
  --c-lime-mid: rgba(128,255,0,0.35);
  --c-white: #f5f5f0;
  --c-muted: #8a9e7a;
  --radius-card: 28px;
  --font-head: 'Newsreader', Georgia, serif;
  --font-body: 'Roboto', system-ui, sans-serif;
  --bottom-bar-h: 64px;
  --marquee-h: 36px;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: var(--c-dark);
  color: var(--c-white);
}
body {
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--c-dark);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ===== 滚动偏移（固定底栏 + 跑马灯）===== */
section[id] {
  scroll-margin-top: calc(var(--marquee-h) + 8px);
}

/* ===== 跑马灯 ===== */
.marquee-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--marquee-h);
  background: var(--c-lime);
  overflow: hidden;
  z-index: 200;
  display: flex;
  align-items: center;
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
  animation: marquee-scroll 28s linear infinite;
}
.marquee-item {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--c-dark);
  padding: 0 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.marquee-sep {
  color: var(--c-dark);
  font-size: 0.75rem;
  opacity: 0.5;
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ===== 外包裹 ===== */
.site-wrapper {
  min-height: 100vh;
  padding-top: var(--marquee-h);
  padding-bottom: var(--bottom-bar-h);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(130%) brightness(0.45);
  mix-blend-mode: normal;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31,38,23,0.82) 0%, rgba(31,38,23,0.35) 60%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: right;
  padding: 2.5rem 2rem 3.5rem 1rem;
  max-width: 720px;
}
.hero-eyebrow {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-bottom: 1rem;
}
.eyebrow-tag {
  display: inline-block;
  background: var(--c-lime-dim);
  border: 1.5px solid var(--c-lime);
  color: var(--c-lime);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2em 0.7em;
  border-radius: 4px;
}
.eyebrow-tag--alt {
  background: var(--c-lime);
  color: var(--c-dark);
}
.hero-h1 {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--c-white);
  margin-bottom: 1rem;
  text-shadow: 0 2px 24px rgba(0,0,0,0.5);
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--c-muted);
  margin-bottom: 1.8rem;
  max-width: 520px;
  margin-left: auto;
  line-height: 1.7;
}
.hero-cta-row {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 1.8rem;
  background: var(--c-lime);
  color: var(--c-dark);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 14px;
  border: 2px solid var(--c-lime);
  letter-spacing: 0.04em;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}
.btn-primary:hover {
  background: var(--c-green);
  border-color: var(--c-green);
  transform: translateY(-2px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  height: 48px;
  padding: 0 1.8rem;
  background: transparent;
  color: var(--c-lime);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  border-radius: 14px;
  border: 2px solid var(--c-lime);
  letter-spacing: 0.04em;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}
.btn-ghost:hover {
  background: var(--c-lime-dim);
  transform: translateY(-2px);
}

/* 贴纸 */
.sticker {
  position: absolute;
  z-index: 3;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  padding: 0.3em 0.7em;
  border-radius: 6px;
  pointer-events: none;
}
.sticker-1 {
  top: 18%;
  left: 8%;
  background: var(--c-lime);
  color: var(--c-dark);
  transform: rotate(-8deg);
  animation: jitter 3.5s ease-in-out infinite;
}
.sticker-2 {
  top: 35%;
  left: 20%;
  background: transparent;
  color: var(--c-lime);
  border: 2px solid var(--c-lime);
  transform: rotate(5deg);
  animation: jitter 4s ease-in-out infinite 0.5s;
}
.sticker-3 {
  top: 55%;
  left: 12%;
  background: var(--c-dark3);
  color: var(--c-green);
  border: 2px solid var(--c-green);
  transform: rotate(-3deg);
  animation: jitter 5s ease-in-out infinite 1s;
}
@keyframes jitter {
  0%,100% { transform: rotate(-8deg) translateY(0); }
  25%      { transform: rotate(-6deg) translateY(-3px); }
  50%      { transform: rotate(-10deg) translateY(2px); }
  75%      { transform: rotate(-7deg) translateY(-1px); }
}
.sticker-2 { animation-name: jitter2; }
@keyframes jitter2 {
  0%,100% { transform: rotate(5deg) translateY(0); }
  33%     { transform: rotate(7deg) translateY(-4px); }
  66%     { transform: rotate(3deg) translateY(2px); }
}
.sticker-3 { animation-name: jitter3; }
@keyframes jitter3 {
  0%,100% { transform: rotate(-3deg) translateY(0); }
  40%     { transform: rotate(-5deg) translateY(3px); }
  70%     { transform: rotate(-1deg) translateY(-2px); }
}

/* ===== 主内容布局 ===== */
.site-main {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 1.25rem 2rem;
}
.main-layout-section {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* ===== 侧边栏（左侧）===== */
.sidebar-left {
  position: sticky;
  top: calc(var(--marquee-h) + 16px);
  z-index: 10;
}
.sidebar-inner {
  background: var(--c-dark3);
  border: 1.5px solid var(--c-lime-mid);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.25rem;
}
.sidebar-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-lime);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-lime-mid);
}
.sidebar-title span {
  display: inline;
}
.sidebar-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-bottom: 1.25rem;
}
.sidebar-link {
  display: block;
  padding: 0.45rem 0.75rem;
  border-radius: 10px;
  font-size: 0.9rem;
  color: var(--c-muted);
  font-family: var(--font-body);
  font-weight: 400;
  transition: background 0.18s, color 0.18s;
}
.sidebar-link:hover {
  background: var(--c-lime-dim);
  color: var(--c-lime);
}
.sidebar-badge {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--c-lime-dim);
  border: 1px solid var(--c-lime-mid);
  border-radius: 10px;
  padding: 0.5rem 0.75rem;
  font-size: 0.82rem;
}
.badge-text { color: var(--c-muted); }
.badge-num {
  color: var(--c-lime);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
}

/* ===== 正文区 ===== */
.content-main {
  min-width: 0;
  position: relative;
}
.content-deco-figure {
  position: absolute;
  top: -1rem;
  right: -0.5rem;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  width: 160px;
  height: 80px;
}
.deco-strip {
  position: absolute;
  height: 3px;
  border-radius: 2px;
  opacity: 0.35;
}
.deco-strip-1 {
  width: 120px;
  top: 16px;
  right: 0;
  background: var(--c-lime);
  transform: rotate(-6deg);
}
.deco-strip-2 {
  width: 70px;
  top: 36px;
  right: 20px;
  background: var(--c-green);
  transform: rotate(-6deg);
}
.page-content-wrap {
  position: relative;
  z-index: 1;
}

/* ===== page.content 内部元素样式 ===== */
.page-content-wrap h2,
.page-content-wrap h3 {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--c-white);
  margin: 2.5rem 0 1rem;
  line-height: 1.25;
}
.page-content-wrap h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  border-left: 4px solid var(--c-lime);
  padding-left: 0.75rem;
}
.page-content-wrap h2 span {
  display: inline;
}
.page-content-wrap h3 {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  color: var(--c-lime);
}
.page-content-wrap h3 span {
  display: inline;
}
.page-content-wrap p {
  font-size: 1rem;
  line-height: 1.75;
  color: #c8d8b8;
  margin-bottom: 1rem;
}
.page-content-wrap ul,
.page-content-wrap ol {
  margin: 0.75rem 0 1rem 1.25rem;
}
.page-content-wrap li {
  font-size: 1rem;
  line-height: 1.7;
  color: #c8d8b8;
  margin-bottom: 0.4rem;
  list-style: disc;
}
.page-content-wrap ol li { list-style: decimal; }
.page-content-wrap a {
  color: var(--c-lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s;
}
.page-content-wrap a:hover { color: var(--c-green); }
.page-content-wrap section {
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(128,255,0,0.1);
}
.page-content-wrap section:last-child { border-bottom: none; }
.page-content-wrap table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.95rem;
}
.page-content-wrap th,
.page-content-wrap td {
  border: 1px solid var(--c-lime-mid);
  padding: 0.6rem 0.9rem;
  text-align: left;
  color: #c8d8b8;
}
.page-content-wrap th {
  background: var(--c-lime-dim);
  color: var(--c-lime);
  font-weight: 700;
}
.page-content-wrap blockquote {
  border-left: 3px solid var(--c-lime);
  margin: 1.25rem 0;
  padding: 0.75rem 1.25rem;
  background: var(--c-lime-dim);
  border-radius: 0 12px 12px 0;
  color: #c8d8b8;
  font-style: italic;
}
.page-content-wrap strong { color: var(--c-lime); font-weight: 700; }
.page-content-wrap em { color: var(--c-green); font-style: italic; }
.page-content-wrap code {
  background: var(--c-dark3);
  color: var(--c-lime);
  border-radius: 4px;
  padding: 0.1em 0.45em;
  font-size: 0.9em;
  font-family: 'Courier New', monospace;
}
.page-content-wrap pre {
  background: var(--c-dark2);
  border: 1px solid var(--c-lime-mid);
  border-radius: 12px;
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1rem 0;
}
.page-content-wrap img {
  border-radius: 16px;
  max-width: 100%;
  margin: 1rem 0;
}

/* stagger 进入 */
.stagger-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger-item.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 页脚 ===== */
.site-footer {
  border-top: 1px solid var(--c-lime-mid);
  background: var(--c-dark2);
  padding: 1.5rem 1.25rem;
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-brand-wrap { flex-shrink: 0; }
.footer-logo-text {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--c-lime);
  letter-spacing: -0.02em;
  line-height: 1;
}
.footer-logo-mark {
  border-radius: 8px;
}
.footer-nav {
  flex: 1;
  padding: 0 1.5rem;
}
.footer-dl {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0;
  list-style: none;
}
.footer-dl dt {
  display: inline;
}
.footer-dl dt::after {
  content: '·';
  color: var(--c-lime-mid);
  margin: 0 0.45rem;
}
.footer-dl dt:last-child::after { content: ''; }
.footer-dl a {
  font-size: 0.82rem;
  color: var(--c-muted);
  transition: color 0.15s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 0.1rem;
}
.footer-dl a:hover { color: var(--c-lime); }
.footer-copy {
  font-size: 0.78rem;
  color: var(--c-muted);
  text-align: center;
  flex-shrink: 0;
}

/* ===== 底部固定导航条 ===== */
.bottom-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--bottom-bar-h);
  background: rgba(20,26,14,0.97);
  border-top: 1.5px solid var(--c-lime-mid);
  z-index: 300;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.bottom-bar-inner {
  max-width: 900px;
  margin: 0 auto;
  height: 100%;
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0 1rem;
}
.bottom-bar-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--c-lime-dim);
  border: 1.5px solid var(--c-lime-mid);
  transition: background 0.18s;
  flex-shrink: 0;
}
.bottom-bar-icon-btn:hover { background: var(--c-lime); }
.bottom-bar-brand-icon {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-lime);
}
.bottom-bar-logo { border-radius: 6px; }
.bottom-bar-search { width: 100%; }
.search-form {
  display: flex;
  align-items: center;
  background: var(--c-dark3);
  border: 1.5px solid var(--c-lime-mid);
  border-radius: 12px;
  overflow: hidden;
  height: 42px;
}
.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--c-white);
  font-size: 0.92rem;
  font-family: var(--font-body);
  padding: 0 0.85rem;
  height: 100%;
}
.search-input::placeholder { color: var(--c-muted); }
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 100%;
  color: var(--c-lime);
  transition: color 0.15s;
  flex-shrink: 0;
}
.search-btn:hover { color: var(--c-green); }
.bottom-bar-nav-icons {
  display: flex;
  gap: 0.25rem;
}
.bottom-icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
  border-radius: 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--c-muted);
  background: var(--c-dark3);
  border: 1px solid transparent;
  transition: border-color 0.18s, color 0.18s, background 0.18s;
}
.bottom-icon-link:hover {
  border-color: var(--c-lime-mid);
  color: var(--c-lime);
  background: var(--c-lime-dim);
}

/* ===== 全屏遮罩菜单 ===== */
.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 490;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.menu-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}
.fullscreen-menu {
  position: fixed;
  inset: 0;
  background: var(--c-dark2);
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 3rem 2.5rem;
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
}
.fullscreen-menu.is-open {
  transform: translateX(0);
}
.menu-close-btn {
  position: absolute;
  top: 1.5rem; right: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  color: var(--c-lime);
  border-radius: 12px;
  border: 1.5px solid var(--c-lime-mid);
  background: var(--c-dark3);
  transition: background 0.18s;
}
.menu-close-btn:hover { background: var(--c-lime-dim); }
.menu-brand {
  font-family: var(--font-head);
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: 700;
  color: var(--c-lime);
  letter-spacing: -0.03em;
  margin-bottom: 2.5rem;
  line-height: 1;
}
.fullscreen-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
}
.fullscreen-nav-item {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.35s ease var(--i,0), transform 0.35s ease var(--i,0);
}
.fullscreen-nav-item.is-visible {
  opacity: 1;
  transform: translateX(0);
}
.fullscreen-nav-link {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 600;
  color: var(--c-white);
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(128,255,0,0.08);
  letter-spacing: -0.01em;
  transition: color 0.18s, padding-left 0.2s;
}
.fullscreen-nav-link:hover {
  color: var(--c-lime);
  padding-left: 0.5rem;
}
.menu-footer-note {
  margin-top: 2.5rem;
  font-size: 0.8rem;
  color: var(--c-muted);
  font-family: var(--font-body);
}

/* ===== 响应式 ===== */
@media (max-width: 800px) {
  .main-layout-section {
    grid-template-columns: 1fr;
  }
  .sidebar-left {
    position: static;
    order: -1;
  }
  .sidebar-inner {
    padding: 1rem;
  }
  .sidebar-nav-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.75rem;
  }
  .sidebar-link {
    font-size: 0.82rem;
    padding: 0.3rem 0.6rem;
  }
  .hero-content {
    padding: 2rem 1.25rem 2.5rem 1rem;
    max-width: 100%;
  }
  .hero-h1 { font-size: 2rem; }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .footer-nav { padding: 0; width: 100%; }
  .footer-dl { gap: 0.1rem 0; }
  .bottom-bar-inner {
    grid-template-columns: 48px 1fr;
    grid-template-rows: auto;
  }
  .bottom-bar-nav-icons { display: none; }
}
@media (max-width: 480px) {
  .site-main { padding: 2rem 1rem 1.5rem; }
  .hero { min-height: 100svh; }
  .sticker { display: none; }
  .hero-cta-row { flex-direction: column; align-items: flex-end; }
  .btn-primary, .btn-ghost { width: 180px; justify-content: center; }
  .fullscreen-menu { padding: 3rem 1.5rem; }
  .menu-brand { font-size: 1.8rem; }
  .fullscreen-nav-link { font-size: 1.3rem; }
}

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