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

/* ===== 基础变量 ===== */
:root {
  --c-green: #69ff69;
  --c-cyan: #00ffff;
  --c-dark: #172617;
  --c-dark2: #1e2e1e;
  --c-dark3: #0e1a0e;
  --c-text: #d4f5d4;
  --c-text-dim: #8ab88a;
  --c-border: rgba(105, 255, 105, 0.25);
  --c-border-cyan: rgba(0, 255, 255, 0.25);
  --glow-green: 0 0 12px rgba(105, 255, 105, 0.6), 0 0 32px rgba(105, 255, 105, 0.2);
  --glow-cyan: 0 0 12px rgba(0, 255, 255, 0.6), 0 0 32px rgba(0, 255, 255, 0.2);
  --radius-card: 28px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --max-w: 960px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--c-dark3);
}

body {
  font-family: var(--font);
  background: var(--c-dark);
  color: var(--c-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* ===== 公告条 ===== */
.announce-bar {
  background: linear-gradient(90deg, var(--c-dark3) 0%, rgba(105,255,105,0.12) 50%, var(--c-dark3) 100%);
  border-bottom: 1px solid var(--c-border);
  text-align: center;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-green);
  letter-spacing: 0.04em;
  text-shadow: var(--glow-green);
}

/* ===== 顶部 Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(23, 38, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid rgba(105,255,105,0.1);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

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

.brand-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--c-green), var(--c-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 0 8px rgba(105,255,105,0.4));
}

/* 汉堡按钮 */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.hamburger:hover {
  border-color: var(--c-green);
  box-shadow: var(--glow-green);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-green);
  border-radius: 2px;
  transition: transform var(--transition);
}

/* 菜单行 */
.menu-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 24px;
  overflow-x: auto;
  scrollbar-width: none;
}

.menu-row::-webkit-scrollbar { display: none; }

.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text-dim);
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid transparent;
  white-space: nowrap;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-link.active {
  color: var(--c-green);
  border-color: var(--c-border);
  background: rgba(105,255,105,0.06);
  text-shadow: 0 0 8px rgba(105,255,105,0.5);
}

/* ===== 全屏遮罩菜单 ===== */
.fullscreen-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(14, 26, 14, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  pointer-events: none;
  transform: scale(1.04);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.fullscreen-menu.open {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.menu-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: 1px solid var(--c-border);
  color: var(--c-green);
  font-size: 20px;
  cursor: pointer;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.menu-close:hover {
  border-color: var(--c-green);
  box-shadow: var(--glow-green);
}

.fs-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  width: 100%;
  max-width: 600px;
}

.fs-nav .nav-link {
  font-size: 17px;
  width: 100%;
  justify-content: center;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 14px 24px;
  min-height: 52px;
}

.fs-nav .nav-link:hover,
.fs-nav .nav-link.active {
  background: rgba(105,255,105,0.08);
  border-color: var(--c-green);
  box-shadow: var(--glow-green);
}

/* ===== Hero 首页 ===== */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  background: linear-gradient(160deg, var(--c-dark3) 0%, #0a1f1a 50%, var(--c-dark) 100%);
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 80% 30%, rgba(0,255,255,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 20% 70%, rgba(105,255,105,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: right;
  padding: 60px 32px 40px;
  max-width: var(--max-w);
  margin-left: auto;
  width: 100%;
}

.hero-h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--c-green) 0%, var(--c-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 16px rgba(105,255,105,0.3));
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 16px;
  color: var(--c-text-dim);
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  line-height: 1.7;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--c-green), var(--c-cyan));
  color: var(--c-dark3);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: 50px;
  min-height: 48px;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  box-shadow: 0 4px 24px rgba(105,255,105,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(105,255,105,0.5);
  color: var(--c-dark3);
}

.hero-slash {
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--c-green), var(--c-cyan), transparent);
  position: relative;
  z-index: 2;
}

.hero-slash::before {
  content: '';
  display: block;
  height: 40px;
  background: linear-gradient(180deg, transparent, rgba(105,255,105,0.04));
}

/* ===== 页面英雄区（非首页） ===== */
.page-hero {
  position: relative;
  padding: 60px 24px 40px;
  background: linear-gradient(160deg, var(--c-dark3) 0%, var(--c-dark2) 100%);
  border-bottom: 1px solid var(--c-border);
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-green), var(--c-cyan));
}

.page-hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.page-type-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-cyan);
  border: 1px solid var(--c-border-cyan);
  border-radius: 4px;
  padding: 4px 10px;
  margin-bottom: 14px;
  text-shadow: 0 0 8px rgba(0,255,255,0.5);
}

.page-hero h1 {
  font-size: clamp(22px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--c-green);
  text-shadow: 0 0 20px rgba(105,255,105,0.3);
  margin-bottom: 14px;
}

.page-lead {
  font-size: 16px;
  color: var(--c-text-dim);
  max-width: 640px;
  line-height: 1.7;
}

.page-date {
  display: block;
  font-size: 13px;
  color: var(--c-text-dim);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.page-date-mod {
  display: inline-block;
  font-size: 12px;
  color: var(--c-text-dim);
  margin-left: 12px;
  opacity: 0.7;
}

/* ===== 主内容区 ===== */
main {
  width: 100%;
}

article {
  width: 100%;
}

section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px;
}

/* ===== Prose 正文 ===== */
.prose {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-text);
}

.prose h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-green);
  margin: 2em 0 0.7em;
  letter-spacing: -0.01em;
}

.prose h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--c-cyan);
  margin: 1.6em 0 0.5em;
}

.prose p {
  margin-bottom: 1.2em;
}

.prose ul, .prose ol {
  padding-left: 1.5em;
  margin-bottom: 1.2em;
}

.prose li {
  margin-bottom: 0.5em;
}

.prose a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(0,255,255,0.3);
}

.prose a:hover {
  color: var(--c-green);
  text-decoration-color: var(--c-green);
}

.prose blockquote {
  border-left: 3px solid var(--c-green);
  padding: 12px 20px;
  background: rgba(105,255,105,0.04);
  border-radius: 0 8px 8px 0;
  margin: 1.5em 0;
  font-style: italic;
  color: var(--c-text-dim);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 15px;
}

.prose th {
  background: rgba(105,255,105,0.1);
  color: var(--c-green);
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--c-border);
  font-weight: 600;
}

.prose td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(105,255,105,0.08);
}

.prose tr:hover td {
  background: rgba(105,255,105,0.03);
}

/* ===== 区块标题 ===== */
section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-green);
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
  text-transform: uppercase;
  font-style: normal;
}

/* ===== 卡片列表（首页用） ===== */
.card-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.card-list li a.card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  background: rgba(23,38,23,0.6);
  color: var(--c-text);
  transition: all var(--transition);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.card-list li a.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-green), var(--c-cyan));
  opacity: 0;
  transition: opacity var(--transition);
}

.card-list li a.card:hover {
  border-color: var(--c-green);
  background: rgba(105,255,105,0.06);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(105,255,105,0.15);
  color: var(--c-text);
}

.card-list li a.card:hover::before {
  opacity: 1;
}

.card-eyebrow small {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-green);
  line-height: 1.4;
}

.card-desc {
  font-size: 14px;
  color: var(--c-text-dim);
  line-height: 1.6;
  flex: 1;
}

.card-date {
  font-size: 12px;
  color: var(--c-text-dim);
  opacity: 0.7;
  margin-top: auto;
}

/* ===== 榜单列表 ===== */
.rank-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rank-list li a {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  background: rgba(23,38,23,0.5);
  color: var(--c-text);
  transition: all var(--transition);
}

.rank-list li a:hover {
  border-color: var(--c-cyan);
  background: rgba(0,255,255,0.05);
  box-shadow: 0 4px 20px rgba(0,255,255,0.1);
  color: var(--c-text);
}

.rank-num {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--c-green);
  min-width: 48px;
  text-align: center;
  text-shadow: var(--glow-green);
  line-height: 1;
  opacity: 0.6;
}

.rank-list li:nth-child(1) .rank-num { opacity: 1; font-size: 32px; }
.rank-list li:nth-child(2) .rank-num { opacity: 0.85; }
.rank-list li:nth-child(3) .rank-num { opacity: 0.7; }

.rank-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.rank-info strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.4;
}

.rank-info small {
  font-size: 13px;
  color: var(--c-text-dim);
  line-height: 1.5;
}

/* ===== 相关列表 ===== */
.related-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.related-list li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--c-border);
  border-radius: 16px;
  color: var(--c-text);
  font-size: 15px;
  transition: all var(--transition);
  min-height: 48px;
}

.related-list li a:hover {
  border-color: var(--c-green);
  color: var(--c-green);
  background: rgba(105,255,105,0.05);
}

.related-list li a small {
  font-size: 11px;
  color: var(--c-cyan);
  font-weight: 600;
  letter-spacing: 0.06em;
  border: 1px solid var(--c-border-cyan);
  border-radius: 4px;
  padding: 2px 7px;
  white-space: nowrap;
}

/* ===== Review 特有 ===== */
.review-header-section {
  padding: 48px 24px 32px;
  max-width: var(--max-w);
  margin: 0 auto;
  border-bottom: 1px solid var(--c-border);
}

.review-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.review-header-section h1 {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 700;
  color: var(--c-green);
  text-shadow: 0 0 20px rgba(105,255,105,0.25);
  margin-bottom: 12px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.review-hero-wrap {
  margin-top: 24px;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--c-border);
}

.review-hero-img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== FAQ 特有 ===== */
.faq-content :is(h2, h3) {
  position: relative;
  padding-left: 16px;
}

.faq-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.2em;
  bottom: 0.2em;
  width: 3px;
  background: linear-gradient(180deg, var(--c-green), var(--c-cyan));
  border-radius: 2px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-dark3);
  border-top: 1px solid var(--c-border);
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col dt {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-green);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
}

.footer-col dd {
  font-size: 14px;
  color: var(--c-text-dim);
  margin-bottom: 8px;
  line-height: 1.5;
}

.footer-col dd a {
  color: var(--c-text-dim);
  transition: color var(--transition);
}

.footer-col dd a:hover {
  color: var(--c-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--c-border);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--c-text-dim);
  opacity: 0.7;
}

/* ===== Sparkle 装饰（纯CSS） ===== */
.hero-section::after {
  content: '✦';
  position: absolute;
  top: 15%;
  left: 10%;
  font-size: 24px;
  color: var(--c-green);
  opacity: 0.3;
  animation: sparkle 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes sparkle {
  0%, 100% { opacity: 0.2; transform: scale(1) rotate(0deg); }
  50% { opacity: 0.5; transform: scale(1.2) rotate(20deg); }
}

/* ===== Parallax helper ===== */
@media (prefers-reduced-motion: no-preference) {
  .hero-section {
    transform-style: preserve-3d;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== 断点：移动端 ===== */
@media (max-width: 640px) {
  .brand-row { padding: 12px 16px; }
  .menu-row { padding: 6px 12px; gap: 3px; }
  .nav-link { font-size: 12px; padding: 7px 10px; }
  .hero-content { padding: 40px 20px 32px; text-align: right; }
  .hero-h1 { font-size: 26px; }

  section { padding: 36px 16px; }

  .card-list {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 36px 16px 24px;
  }

  .rank-num { font-size: 22px; min-width: 36px; }

  .review-header-section { padding: 32px 16px 24px; }

  .page-hero { padding: 40px 16px 28px; }

  .fs-nav .nav-link { font-size: 15px; padding: 12px 20px; }
}

@media (min-width: 641px) and (max-width: 900px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== 图片占位容忍 ===== */
.card img:empty,
.review-hero-wrap:empty {
  display: none;
}