/* ============================================
   NanoBanana 主题站 - 共享样式表
   主题：深色背景 + 香蕉金黄
   ============================================ */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* 香蕉金黄主色系 */
  --banana-50: #fffdf0;
  --banana-100: #fff8c5;
  --banana-200: #ffee7a;
  --banana-300: #ffe135;
  --banana-400: #ffd60a;
  --banana-500: #ffc107;
  --banana-600: #f5a800;
  --banana-700: #c97e00;

  /* 深色背景 */
  --bg-base: #0a0a0c;
  --bg-surface: #131316;
  --bg-surface-2: #1a1a1f;
  --bg-elevated: #22222a;
  --bg-hover: #2a2a33;

  /* 文本 */
  --text-primary: #f5f5f7;
  --text-secondary: #a8a8b3;
  --text-tertiary: #6b6b78;

  /* 边框与线条 */
  --border-color: rgba(255, 214, 10, 0.12);
  --border-strong: rgba(255, 214, 10, 0.3);

  /* 渐变 */
  --gradient-banana: linear-gradient(135deg, #ffe135 0%, #ffc107 50%, #f5a800 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(255, 214, 10, 0.18), transparent 60%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-banana: 0 8px 32px rgba(255, 193, 7, 0.25);

  /* 间距 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --container: 1200px;
  --header-h: 72px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

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

a:hover {
  color: var(--banana-400);
}

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ---------- Container & Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section-sm {
  padding: 64px 0;
}

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

/* ---------- Typography ---------- */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(255, 214, 10, 0.08);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--banana-300);
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-title .accent {
  background: var(--gradient-banana);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 1000;
  background: rgba(10, 10, 12, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(10, 10, 12, 0.92);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 15px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-logo {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-banana);
  border-radius: 10px;
  flex-shrink: 0;
}

.brand-logo svg,
.brand-logo .iconfont {
  width: 22px;
  height: 22px;
  font-size: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-text {
  color: var(--text-primary);
}

.brand-text span {
  color: var(--banana-400);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-menu a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--banana-400);
  transition: width var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--banana-400);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn svg,
.btn .iconfont {
  width: 18px;
  height: 18px;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: var(--gradient-banana);
  color: #1a1300;
  box-shadow: var(--shadow-banana);
}

.btn-primary:hover {
  color: #1a1300;
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255, 193, 7, 0.4);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-ghost:hover {
  background: rgba(255, 214, 10, 0.08);
  border-color: var(--border-strong);
  color: var(--banana-300);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--banana-300);
}

.btn-outline:hover {
  background: rgba(255, 214, 10, 0.08);
  color: var(--banana-300);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 100px) 0 100px;
  text-align: center;
  overflow: hidden;
  background: var(--gradient-glow);
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 214, 10, 0.12) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 214, 10, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 214, 10, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 214, 10, 0.1);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--banana-300);
  margin-bottom: 28px;
  animation: fadeUp 0.8s ease both;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--banana-400);
  box-shadow: 0 0 12px var(--banana-400);
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeUp 0.8s ease 0.1s both;
}

.hero-title .accent {
  background: var(--gradient-banana);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.75;
  animation: fadeUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 64px;
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease 0.4s both;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 32px;
  font-weight: 800;
  background: var(--gradient-banana);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* ---------- Page Header (内页通用) ---------- */
.page-header {
  padding: calc(var(--header-h) + 80px) 0 60px;
  text-align: center;
  background: var(--gradient-glow);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: "";
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 214, 10, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.page-header h1 {
  position: relative;
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-header h1 .accent {
  background: var(--gradient-banana);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-header p {
  position: relative;
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

.breadcrumb {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 24px;
}

.breadcrumb a:hover {
  color: var(--banana-300);
}

.breadcrumb svg,
.breadcrumb .iconfont {
  width: 14px;
  height: 14px;
  opacity: 0.6;
}

/* ---------- Features ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--banana-400), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-surface-2);
  box-shadow: var(--shadow-md);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 214, 10, 0.08);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  transition: all var(--transition);
}

.feature-icon svg,
.feature-icon .iconfont {
  font-size: 28px;
  color: var(--banana-400);
}

.feature-card:hover .feature-icon {
  background: rgba(255, 214, 10, 0.15);
  border-color: var(--border-strong);
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Process / Steps ---------- */
.process-wrap {
  position: relative;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  position: relative;
}

.step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition);
}

.step-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}

.step-num {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-banana);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.25;
}

.step-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 214, 10, 0.08);
  border-radius: 12px;
  margin-bottom: 20px;
}

.step-icon svg,
.step-icon .iconfont {
  font-size: 24px;
  color: var(--banana-400);
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Showcase Gallery ---------- */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.showcase-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-surface);
  cursor: pointer;
  border: 1px solid var(--border-color);
}

.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.showcase-item:hover img {
  transform: scale(1.08);
}

.showcase-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.showcase-item:hover::after {
  opacity: 1;
}

.showcase-tag {
  position: absolute;
  bottom: 14px;
  left: 14px;
  z-index: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition);
}

.showcase-item:hover .showcase-tag {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- News Section (首页) ---------- */
.news-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.news-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 24px;
  flex-wrap: wrap;
}

.news-section-header .section-eyebrow {
  margin-bottom: 12px;
}

.news-section-header .section-title {
  margin-bottom: 0;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.news-card-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-elevated);
}

.news-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-card-thumb img {
  transform: scale(1.06);
}

.news-card-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 5px 12px;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--banana-300);
}

.news-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.news-card-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-card-meta svg,
.news-card-meta .iconfont {
  font-size: 14px;
}

.news-card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.news-card:hover h3 {
  color: var(--banana-300);
}

.news-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}

.news-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--banana-400);
  margin-top: auto;
}

.news-card-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition);
}

.news-card:hover .news-card-link svg {
  transform: translateX(4px);
}

/* ---------- News List Page (新闻列表页) ---------- */
.news-list-page {
  padding: 0 0 96px;
}

.news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 9px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--border-strong);
  color: var(--banana-300);
}

.filter-btn.active {
  background: var(--gradient-banana);
  border-color: transparent;
  color: #1a1300;
  font-weight: 600;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-grid .news-card {
  background: var(--bg-surface);
}

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 56px;
}

.page-btn {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.page-btn:hover {
  border-color: var(--border-strong);
  color: var(--banana-300);
}

.page-btn.active {
  background: var(--gradient-banana);
  border-color: transparent;
  color: #1a1300;
  font-weight: 600;
}

.page-btn svg {
  width: 16px;
  height: 16px;
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- News Detail Page (新闻详情页) ---------- */
.article-layout {
  padding: 0 0 96px;
}

.article-layout-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}

.article-wrap {
  min-width: 0;
}

.article-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.article-sidebar .widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
}

.article-sidebar .widget h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.article-sidebar .widget h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 30px;
  height: 2px;
  background: var(--banana-400);
}

.article-sidebar .popular-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.article-sidebar .popular-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 6px 0;
  transition: all var(--transition);
}

.article-sidebar .popular-item:hover h5 {
  color: var(--banana-400);
}

.article-sidebar .popular-item .num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--banana-400);
  background: rgba(255, 214, 10, 0.12);
  border-radius: 6px;
}

.article-sidebar .popular-item h5 {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 4px;
  transition: color var(--transition);
}

.article-sidebar .popular-item .pm {
  font-size: 11px;
  color: var(--text-tertiary);
}

.article-sidebar .widget-cta {
  text-align: center;
}

.article-sidebar .widget-cta p {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: 16px;
}

@media (max-width: 1024px) {
  .article-layout-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .article-sidebar {
    grid-template-columns: 1fr;
  }
}

.article-header {
  padding: 8px 0 36px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.article-cat {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(255, 214, 10, 0.08);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--banana-300);
  margin-bottom: 20px;
}

.article-title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.article-summary {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  padding: 18px 22px;
  background: var(--bg-surface);
  border-left: 3px solid var(--banana-400);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-tertiary);
}

.article-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta svg,
.article-meta .iconfont {
  width: 15px;
  height: 15px;
}

.author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-banana);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #1a1300;
  flex-shrink: 0;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.author-role {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* 文章正文 */
.article-content {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-primary);
}

.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 40px 0 18px;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 14px;
}

.article-content p {
  margin-bottom: 22px;
  color: rgba(245, 245, 247, 0.9);
}

.article-content a {
  color: var(--banana-400);
  text-decoration: underline;
  text-decoration-color: rgba(255, 214, 10, 0.4);
  text-underline-offset: 3px;
}

.article-content a:hover {
  text-decoration-color: var(--banana-400);
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px 4px;
  padding-left: 22px;
}

.article-content ul li,
.article-content ol li {
  margin-bottom: 10px;
  color: rgba(245, 245, 247, 0.9);
}

.article-content ul li {
  list-style: none;
  position: relative;
}

.article-content ul li::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--banana-400);
}

.article-content ol {
  list-style: decimal;
}

.article-content ol li::marker {
  color: var(--banana-400);
  font-weight: 600;
}

.article-content blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--bg-surface);
  border-left: 3px solid var(--banana-400);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 16px;
  color: var(--text-secondary);
  font-style: italic;
}

.article-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 14px;
  padding: 2px 7px;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--banana-300);
}

.article-content pre {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.article-content pre code {
  padding: 0;
  background: none;
  color: var(--text-primary);
}

.article-content img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: 24px 0;
  border: 1px solid var(--border-color);
}

.article-content figure {
  margin: 28px 0;
}

.article-content figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 10px;
}

.article-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-content th,
.article-content td {
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--border-color);
}

.article-content th {
  background: var(--bg-surface);
  font-weight: 600;
  color: var(--banana-300);
}

.article-content td {
  color: var(--text-secondary);
}

/* 文章标签与分享 */
.article-footer {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.tag {
  padding: 6px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.tag:hover {
  border-color: var(--border-strong);
  color: var(--banana-300);
  background: rgba(255, 214, 10, 0.05);
}

.article-share {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.share-label {
  font-size: 14px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.share-label svg,
.share-label .iconfont {
  width: 16px;
  height: 16px;
}

.share-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.share-btn svg,
.share-btn .iconfont {
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
}

.share-btn:hover {
  border-color: var(--border-strong);
  background: rgba(255, 214, 10, 0.05);
}

.share-btn:hover svg {
  color: var(--banana-400);
}

/* 上下篇导航 */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 48px;
}

.post-nav-item {
  padding: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.post-nav-item:hover {
  border-color: var(--border-strong);
  background: var(--bg-surface-2);
}

.post-nav-item.next {
  text-align: right;
}

.post-nav-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.post-nav-item.next .post-nav-label {
  justify-content: flex-end;
}

.post-nav-label svg,
.post-nav-label .iconfont {
  width: 14px;
  height: 14px;
}

.post-nav-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  transition: color var(--transition);
}

.post-nav-item:hover .post-nav-title {
  color: var(--banana-300);
}

/* 相关文章 */
.related-section {
  margin-top: 80px;
}

.related-section .section-title {
  font-size: 24px;
  margin-bottom: 32px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 214, 10, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner h2 {
  position: relative;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-banner h2 .accent {
  background: var(--gradient-banana);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cta-banner p {
  position: relative;
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .hero-actions {
  position: relative;
  margin: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 380px;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.social-link svg {
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
}

.social-link:hover {
  border-color: var(--border-strong);
  background: rgba(255, 214, 10, 0.05);
}

.social-link:hover svg {
  color: var(--banana-400);
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.footer-col ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.footer-col ul li {
  margin-bottom: 0;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-col ul li a:hover {
  color: var(--banana-300);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-tertiary);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom a:hover {
  color: var(--banana-300);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.2);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

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

  .showcase-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 12, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    width: 100%;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-menu a:hover,
  .nav-menu a.active {
    background: rgba(255, 214, 10, 0.06);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-actions .btn:not(.nav-toggle) {
    display: none;
  }

  .hero-stats {
    gap: 32px;
  }

  .stat-num {
    font-size: 26px;
  }

  .news-list,
  .news-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

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

  .post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-item.next {
    text-align: left;
  }

  .post-nav-item.next .post-nav-label {
    justify-content: flex-start;
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .news-section-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: calc(var(--header-h) + 60px) 0 60px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

  .feature-card,
  .step-card {
    padding: 24px;
  }
}