/* ==========================================================================
   Clash Verge 官方网站 - 极简下载索引风格样式表 (Minimalist Download Index & Directory Style)
   ========================================================================== */

:root {
  --bg-primary: #0b0f19;
  --bg-surface: #111827;
  --bg-card: #162032;
  --bg-card-hover: #1c283f;
  --bg-row-alt: #131d2e;
  --bg-code: #080c14;
  
  --border-subtle: #1f293d;
  --border-strong: #334155;
  --border-highlight: #38bdf8;
  
  --text-main: #f8fafc;
  --text-sub: #94a3b8;
  --text-dim: #64748b;
  --text-accent: #38bdf8;
  
  --accent-blue: #2563eb;
  --accent-cyan: #0284c7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
  
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --max-w: 1180px;
  --transition: all 0.2s ease-in-out;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 32px 32px;
}

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

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

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 顶部极简索引通告条 */
.index-top-bar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.45rem 0;
  font-size: 0.8rem;
  color: var(--text-sub);
  font-family: var(--font-mono);
}

.index-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.index-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-emerald);
  font-weight: 600;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 15, 25, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.logo-badge {
  background: var(--text-accent);
  color: var(--bg-primary);
  font-size: 0.85rem;
  font-weight: 900;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-item {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-sub);
  padding: 0.35rem 0.2rem;
  position: relative;
}

.nav-item:hover,
.nav-item.active {
  color: #ffffff;
}

.nav-item.active::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--text-accent);
}

.nav-btn-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-toggle {
  display: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-size: 1rem;
}

/* 按钮样式 (极简索引风) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.65rem 1.45rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--text-accent);
  color: #0b0f19;
  border: 1px solid var(--text-accent);
}

.btn-primary:hover {
  background-color: #7dd3fc;
  border-color: #7dd3fc;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--text-accent);
  color: #ffffff;
}

.btn-sm {
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  border-radius: var(--radius-xs);
}

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

/* 极简窗口框架 */
.index-window-frame {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.index-window-frame:hover {
  border-color: var(--border-strong);
}

.index-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: #0d131f;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.titlebar-dots {
  display: flex;
  gap: 5px;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

/* Hero 首屏 */
.hero-section {
  padding: 4rem 0 3.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.index-meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-accent);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-xs);
  margin-bottom: 1rem;
}

.hero-heading {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 1rem;
}

.hero-desc {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-sub);
  margin-bottom: 1.75rem;
}

.hero-desc strong {
  color: #ffffff;
}

/* 索引快捷目录条 (Directory Quick Bar) */
.directory-quick-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.quick-bar-path {
  color: var(--text-accent);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 数据背书区 (极简四格数据网格) */
.endorsement-section {
  padding: 2.2rem 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.4rem 1.1rem;
  text-align: center;
  transition: var(--transition);
}

.stat-box:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.stat-val {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-accent);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  margin-bottom: 0.2rem;
}

.stat-tit {
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 0.15rem;
}

.stat-inf {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* 常用 Section 结构 */
.section {
  padding: 4.5rem 0;
  position: relative;
}

.section-head {
  max-width: 760px;
  margin-bottom: 2.75rem;
}

.section-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-accent);
  font-family: var(--font-mono);
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: 2.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-sub);
  line-height: 1.65;
}

/* 核心功能区 (极简卡片网格) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card);
  transform: translateY(-2px);
}

.feature-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.feature-icon-tag {
  font-size: 1.25rem;
}

.feature-code-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-xs);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.feature-text {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.65;
}

.feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.75rem;
}

.chip {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  background: var(--bg-primary);
  color: var(--text-dim);
  border: 1px solid var(--border-subtle);
}

/* 极简下载索引表格 (Index Table Directory) */
.index-table-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 2rem;
}

.index-table-header {
  padding: 1rem 1.25rem;
  background: #0d131f;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.index-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.index-table th {
  background: #0f172a;
  color: var(--text-sub);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.index-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-main);
  vertical-align: middle;
}

.index-table tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.015);
}

.index-table tr:hover {
  background-color: var(--bg-card);
}

.file-name-cell {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.file-hash {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* 图文展示区 */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 3.5rem;
}

.showcase-row.reverse {
  grid-template-columns: 1fr 1fr;
}

.showcase-content h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.85rem;
}

.showcase-content p {
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.index-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.index-check-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--text-main);
}

.index-check-item svg {
  color: var(--text-accent);
  flex-shrink: 0;
  margin-top: 4px;
}

/* 平台支持区 (5列极简卡片) */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

.platform-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition);
}

.platform-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card);
  transform: translateY(-2px);
}

.platform-icon {
  font-size: 1.75rem;
}

.platform-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
}

.platform-meta {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.platform-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
  background: rgba(56, 189, 248, 0.1);
  color: var(--text-accent);
  border: 1px solid rgba(56, 189, 248, 0.2);
}

/* FAQ 极简问答卡片 */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.faq-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}

.faq-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card);
}

.faq-q {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-q .q-idx {
  color: var(--text-accent);
  font-family: var(--font-mono);
}

.faq-a {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.65;
}

/* CTA 底部横幅 */
.index-cta-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
}

.cta-title {
  font-size: 2.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.cta-desc {
  font-size: 1.05rem;
  color: var(--text-sub);
  max-width: 620px;
  margin: 0 auto 1.75rem;
}

/* 教程步骤 */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.step-box {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
}

.step-box:hover {
  border-color: var(--border-strong);
  background: var(--bg-card);
}

.step-idx {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--text-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

.step-main h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.65rem;
}

.step-main p {
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
}

.step-code-bar {
  background: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-accent);
  overflow-x: auto;
  margin-top: 0.65rem;
}

.step-pic-box {
  margin-top: 1rem;
}

/* 内页 Hero */
.page-hero {
  padding: 3.5rem 0 3rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.page-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.85rem;
  letter-spacing: -0.02em;
}

.page-hero p {
  font-size: 1.05rem;
  color: var(--text-sub);
  max-width: 720px;
}

/* 页脚 */
.site-footer {
  margin-top: auto;
  background: #070a12;
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 0 2rem;
  color: var(--text-sub);
  font-size: 0.85rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-brand p {
  color: var(--text-dim);
  line-height: 1.6;
  font-size: 0.82rem;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-dim);
}

.footer-links a:hover {
  color: var(--text-accent);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .platforms-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #0b0f19;
    flex-direction: column;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
    gap: 0.85rem;
  }
  .nav-links.active { display: flex; }
  .hero-heading { font-size: 2.25rem; }
  .features-grid { grid-template-columns: 1fr; }
  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; }
  .showcase-row, .showcase-row.reverse { grid-template-columns: 1fr; gap: 1.75rem; }
  .step-box { grid-template-columns: 1fr; gap: 1rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}