/*
Theme Name: Astra Child - AI 跨境通
Theme URI: https://aicrossborder.com
Description: AI 跨境通亮色主题 - 基于 Astra 的子主题
Author: AI 跨境通
Author URI: https://aicrossborder.com
Template: astra
Version: 2.3.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: astra-child
*/

/* ============================
   AI 跨境通 — Global Styles
   ============================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

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

:root {
  --bg: #ffffff;
  --surface: #f7f7f9;
  --border: rgba(0,0,0,0.08);
  --border-hover: rgba(0,0,0,0.15);
  --text-1: #1d1d1f;
  --text-2: rgba(0,0,0,0.75);
  --text-3: rgba(0,0,0,0.55);
  --text-4: rgba(0,0,0,0.35);
  --text-5: rgba(0,0,0,0.15);
  --accent: #6366f1;
  --accent-dim: rgba(99, 102, 241, 0.8);
  --accent-bg: rgba(99, 102, 241, 0.1);
  --accent-border: rgba(99, 102, 241, 0.2);
  --green: #22c55e;
  --green-dim: rgba(34, 197, 94, 0.8);
  --green-bg: rgba(34, 197, 94, 0.1);
  --green-border: rgba(34, 197, 94, 0.2);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --max-w: 1200px;
  --max-w-narrow: 800px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text-2);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.7;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }

::selection {
  background: rgba(99, 102, 241, 0.2);
  color: var(--text-1);
}

/* ---- Override Astra defaults ---- */
.ast-container,
.site-content .ast-container {
  max-width: 100%;
  padding: 0;
}
#page > .ast-container,
.ast-separate-container .ast-article-post,
.ast-separate-container .ast-article-single {
  background: transparent;
}
.ast-separate-container,
.ast-plain-container {
  background: var(--bg);
}
.main-header-bar,
.ast-primary-header-bar {
  display: none;
}
.site-content {
  margin-top: 0;
}
#primary,
#secondary {
  padding: 0;
  margin: 0;
}
.entry-content a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity .2s;
}
.entry-content a:hover {
  opacity: 0.8;
}

/* ---- Ambient Background ---- */
.ambient {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none; z-index: 0; overflow: hidden;
}
.ambient::before {
  content: ''; position: absolute; top: -30%; left: -15%;
  width: 70vw; height: 70vw;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.07) 0%, transparent 70%);
  animation: drift 24s ease-in-out infinite alternate;
}
.ambient::after {
  content: ''; position: absolute; bottom: -20%; right: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(192, 132, 252, 0.06) 0%, transparent 70%);
  animation: drift 30s ease-in-out infinite alternate-reverse;
}
@keyframes drift {
  0% { transform: translate(0,0) scale(1); }
  100% { transform: translate(30px,-20px) scale(1.08); }
}

/* ---- Layout ---- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  position: relative;
  z-index: 1;
}

.container--narrow {
  max-width: var(--max-w-narrow);
}

/* ---- Nav ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__logo {
  font-size: 17px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.03em;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav__links .menu {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link,
.nav__links .menu li a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  padding: 6px 14px;
  border-radius: var(--radius-xs);
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
  text-decoration: none;
}
.nav__link:hover, .nav__link.active,
.nav__links .menu li a:hover,
.nav__links .menu li.current-menu-item a,
.nav__links .menu li.current_page_item a {
  color: var(--text-1);
  background: rgba(0,0,0,0.05);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav__search {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--text-3);
  transition: color 0.2s, background 0.2s;
  cursor: pointer;
}
.nav__search:hover {
  color: var(--text-2);
  background: rgba(0,0,0,0.05);
}
.nav__search svg { width: 16px; height: 16px; }

.nav__cta {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: var(--text-1);
  padding: 8px 20px;
  border-radius: 100px;
  border: none;
  transition: opacity 0.2s, transform 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.nav__cta:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  color: #fff;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 100px;
  border: none;
  transition: all 0.25s ease;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
}

.btn--primary {
  background: var(--text-1);
  color: #fff;
}
.btn--primary:hover {
  opacity: 0.85;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(29,29,31,0.15);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  color: var(--text-1);
  border-color: var(--border-hover);
  background: rgba(0,0,0,0.02);
  transform: translateY(-1px);
}

.btn--accent {
  background: var(--accent);
  color: #fff;
}
.btn--accent:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.2);
  color: #fff;
}

.btn--sm {
  font-size: 12px;
  padding: 8px 20px;
}

.btn--lg {
  font-size: 16px;
  padding: 18px 40px;
}

/* ---- Badges ---- */
.badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 12px;
  border-radius: 100px;
  white-space: nowrap;
}
.badge--free {
  color: var(--green-dim);
  background: var(--green-bg);
  border: 1px solid var(--green-border);
}
.badge--paid {
  color: var(--accent-dim);
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
}
.badge--lock {
  color: var(--text-4);
  background: rgba(0,0,0,0.04);
  border: 1px solid var(--border);
}

/* ---- Section ---- */
.section {
  padding: 80px 0;
}
.section__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 32px;
}
.section__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}
.section__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.03em;
}
.section__more {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-4);
  transition: color 0.2s;
  text-decoration: none;
}
.section__more:hover { color: var(--text-2); }

/* ---- Card ---- */
.card-grid {
  display: grid;
  gap: 24px;
}
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: inherit;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  border-color: var(--border-hover);
  color: inherit;
}

.card__img {
  height: 180px;
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.card__img img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.card__img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(192, 132, 252, 0.04));
  font-size: 32px;
  color: var(--text-5);
}

.card__body {
  padding: 20px;
}

.card__tag {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.card__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: -0.01em;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-4);
}

.card__lock {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-3);
  background: rgba(0,0,0,0.04);
  padding: 3px 10px;
  border-radius: 100px;
  margin-top: 12px;
}

/* Featured card */
.card--featured {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  position: relative;
}
.card--featured::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.07), rgba(168, 85, 247, 0.05));
  z-index: 0;
}
.card--featured .card__tag,
.card--featured .card__title,
.card--featured .card__desc {
  position: relative; z-index: 1;
}
.card--featured .card__title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.card--featured .card__desc {
  font-size: 14px;
}

/* ---- Hero ---- */
.hero {
  padding: 160px 0 80px;
  text-align: center;
}

.hero__title {
  font-size: 64px;
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1.15;
  color: var(--text-1);
  margin-bottom: 24px;
}
.hero__title span {
  background: linear-gradient(135deg, #4f46e5 0%, #a855f7 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.hero__desc {
  font-size: 20px;
  color: var(--text-3);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 20px;
  justify-content: center;
}

/* Hero small variant for archive & pricing */
.hero--sm {
  padding: 140px 0 40px;
}
.hero--sm .hero__title {
  font-size: 52px;
}

/* ---- Category Tabs ---- */
.tabs {
  display: flex;
  gap: 8px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
  overflow-x: auto;
}
.tab {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid transparent;
  background: var(--surface);
  white-space: nowrap;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.tab:hover {
  color: var(--text-1);
  background: rgba(0,0,0,0.06);
}
.tab.active {
  color: #fff;
  background: var(--text-1);
  border-color: transparent;
}

/* ---- CTA Banner ---- */
.cta-banner {
  padding: 56px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.08));
  border: 1px solid var(--accent-border);
  text-align: center;
}
.cta-banner__title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.cta-banner__desc {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  position: relative;
  z-index: 1;
}
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__left {
  font-size: 13px;
  color: var(--text-4);
}
.footer__links {
  display: flex;
  gap: 24px;
}
.footer__link {
  font-size: 13px;
  color: var(--text-4);
  transition: color 0.2s;
  text-decoration: none;
}
.footer__link:hover { color: var(--text-2); }

/* ---- Paywall ---- */
.paywall {
  position: relative;
  padding-top: 120px;
  background: linear-gradient(to bottom, transparent, var(--bg) 100px);
}
.paywall__box {
  max-width: 480px;
  margin: 0 auto;
  padding: 48px 40px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--accent-border);
  text-align: center;
}
.paywall__icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  background: var(--accent-bg);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
  font-size: 24px;
  color: var(--accent);
}
.paywall__title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.paywall__desc {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  margin-bottom: 28px;
}
.paywall__price {
  font-size: 14px;
  color: var(--text-4);
  margin-bottom: 24px;
}
.paywall__price strong {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.03em;
}

/* ---- Pricing ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border-radius: 24px;
  overflow: hidden;
}
.pricing-card {
  background: var(--bg);
  padding: 56px 48px;
  position: relative;
}
.pricing-card--featured {
  background: #fafaff;
}
.pricing-card--featured::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), #a855f7);
}
.pricing__tier {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 24px;
}
.pricing-card--featured .pricing__tier { color: var(--accent); }
.pricing__price {
  margin-bottom: 24px;
}
.pricing__amount {
  font-size: 56px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text-1);
}
.pricing-card:first-child .pricing__amount { color: var(--text-3); }
.pricing__period {
  font-size: 15px;
  color: var(--text-4);
  margin-left: 4px;
}
.pricing__desc {
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 36px;
  line-height: 1.7;
}
.pricing__features {
  margin-bottom: 40px;
}
.pricing__feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-2);
}
.pricing__feature:last-child { border-bottom: none; }
.pricing__check {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px;
  flex-shrink: 0;
}
.pricing__check--free {
  background: var(--green-bg);
  color: var(--green);
}
.pricing__check--paid {
  background: var(--accent-bg);
  color: var(--accent);
}

/* ---- Article ---- */
.article-header {
  padding: 140px 0 48px;
  text-align: center;
}
.article-header__tag {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.article-header__title {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.25;
  color: var(--text-1);
  margin-bottom: 20px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.article-header__meta {
  font-size: 13px;
  color: var(--text-4);
  display: flex;
  gap: 16px;
  justify-content: center;
}

.article-body {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 0;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
  margin: 56px 0 20px;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-1);
  margin: 36px 0 16px;
}
.article-body p {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.9;
  margin-bottom: 24px;
}
.article-body ul, .article-body ol {
  padding-left: 24px;
  margin-bottom: 24px;
}
.article-body li {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.9;
  margin-bottom: 10px;
  list-style-type: disc;
}
.article-body ol li { list-style-type: decimal; }
.article-body strong { color: var(--text-1); font-weight: 600; }
.article-body .blurred {
  filter: blur(6px);
  user-select: none;
  pointer-events: none;
}
.article-body img {
  border-radius: var(--radius-sm);
  margin: 32px 0;
  border: 1px solid var(--border);
}
.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 24px;
  margin: 32px 0;
  color: var(--text-3);
  font-style: italic;
  font-size: 16px;
}

/* ---- FAQ ---- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border-radius: 20px;
  overflow: hidden;
}
.faq-item {
  background: var(--bg);
  padding: 24px 28px;
}
.faq-item__question {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item__question::after {
  content: '+';
  font-size: 20px;
  color: var(--text-4);
  transition: transform 0.3s;
}
.faq-item.active .faq-item__question::after {
  transform: rotate(45deg);
}
.faq-item__answer {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.8;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.active .faq-item__answer {
  max-height: 200px;
}

/* ---- Search Form ---- */
.search-form {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
}
.search-form .search-field {
  flex: 1;
  padding: 14px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-1);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-form .search-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.search-form .search-field::placeholder {
  color: var(--text-4);
}
.search-form .search-submit {
  padding: 14px 28px;
  border-radius: 100px;
  border: none;
  background: var(--text-1);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}
.search-form .search-submit:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* ---- Newsletter ---- */
.newsletter {
  padding: 56px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
}
.newsletter__icon {
  font-size: 28px;
  margin-bottom: 12px;
}
.newsletter__title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.newsletter__desc {
  font-size: 15px;
  color: var(--text-3);
  margin-bottom: 28px;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.newsletter__form {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 440px;
  margin: 0 auto;
}
.newsletter__input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-1);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}
.newsletter__input::placeholder {
  color: var(--text-4);
}
.newsletter__btn {
  padding: 14px 32px;
  border-radius: 100px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  white-space: nowrap;
}
.newsletter__btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.newsletter__note {
  font-size: 11px;
  color: var(--text-5);
  margin-top: 16px;
}

/* ---- Tool Card ---- */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.tool-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  background: var(--bg);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.tool-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.tool-card__icon { font-size: 28px; margin-bottom: 16px; }
.tool-card__name { font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: 8px; }
.tool-card__desc { font-size: 13px; color: var(--text-3); line-height: 1.6; margin-bottom: 16px; }
.tool-card__tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tool-card__tag {
  font-size: 10px; font-weight: 600; padding: 4px 10px; border-radius: 100px;
  color: var(--green-dim); background: var(--green-bg); border: 1px solid var(--green-border);
}

/* ---- Pagination ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 48px 0;
}
.pagination .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  font-size: 14px; font-weight: 500; color: var(--text-3);
  border: 1px solid var(--border); background: transparent;
  transition: all 0.2s; text-decoration: none;
}
.pagination .page-numbers:hover { color: var(--text-1); border-color: var(--border-hover); }
.pagination .page-numbers.current { color: #fff; background: var(--text-1); border-color: var(--text-1); }
.pagination .page-numbers.prev,
.pagination .page-numbers.next { width: auto; padding: 0 20px; border-radius: 100px; }

/* ---- Archive Header ---- */
.archive-header { padding: 140px 0 40px; text-align: center; }
.archive-header__title { font-size: 40px; font-weight: 800; letter-spacing: -0.035em; color: var(--text-1); margin-bottom: 16px; }
.archive-header__desc { font-size: 16px; color: var(--text-3); max-width: 540px; margin: 0 auto; line-height: 1.7; }

/* ---- Annual Option ---- */
.annual-option { text-align: center; margin-top: 40px; font-size: 14px; color: var(--text-3); }
.annual-option strong { color: var(--text-1); }
.annual-option .annual-save { color: var(--accent); font-weight: 600; margin-left: 8px; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .container { padding: 0 20px; }
  .nav__inner { padding: 0 16px; gap: 12px; }
  .nav__links { display: none; }
  .nav__logo { font-size: 16px; }
  .hero { padding: 100px 0 60px; }
  .hero__title { font-size: 48px; line-height: 1.2; }
  .hero--sm .hero__title { font-size: 40px; }
  .hero__desc { font-size: 16px; padding: 0 8px; }
  .card-grid { gap: 16px; }
  .card-grid--3, .card-grid--2 { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: 1fr 1fr; }
  .footer__inner { padding: 0 20px; flex-direction: column; gap: 12px; text-align: center; }
  .footer__left { font-size: 12px; }
  .footer__links { justify-content: center; gap: 16px; }
  .hero__actions { flex-direction: column; align-items: center; gap: 12px; }
  .btn--lg { padding: 14px 28px; font-size: 15px; }
  .cta-banner { padding: 32px 20px; }
  .cta-banner__title { font-size: 22px; }
  .cta-banner__desc { font-size: 14px; }
  .article-header__title { font-size: 32px; line-height: 1.3; }
  .article-header__meta { font-size: 13px; }
  .article-body p { font-size: 16px; line-height: 1.8; }
  .article-body h2 { font-size: 24px; }
  .article-body h3 { font-size: 18px; }
  .pricing-card { padding: 32px 20px; }
  .archive-header__title { font-size: 32px; }
  .newsletter { padding: 32px 20px; }
  .newsletter__title { font-size: 20px; }
  .newsletter__desc { font-size: 14px; }
  .newsletter__form { flex-direction: column; }
  .section__title { font-size: 20px; }
  .section__head { flex-direction: column; gap: 8px; align-items: flex-start; }
  .tabs { gap: 8px; padding-bottom: 8px; -webkit-overflow-scrolling: touch; }
  .tab { font-size: 13px; padding: 6px 14px; white-space: nowrap; }
}

@media (max-width: 600px) {
  .tool-grid { grid-template-columns: 1fr; }
  .hero__title { font-size: 36px; }
  .hero__desc { font-size: 15px; }
  .card--text .card__title { font-size: 16px; }
  .card--text .card__desc { font-size: 13px; }
  .card--text .card__body { padding: 18px 18px 16px; }
  .card--featured .card__title { font-size: 18px; }
  .card--featured .card__desc { font-size: 14px; }
  .card--featured { padding: 24px; min-height: 160px; }
  .paywall__box { padding: 32px 20px; }
  .paywall__title { font-size: 20px; }
}

/* ---- Text-only Cards (Apple News style) ---- */
.card--text {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
  background: var(--bg);
}
.card--text .card__accent {
  height: 4px;
  width: 100%;
  background: var(--accent);
  transition: opacity 0.3s;
}
.card--text:hover .card__accent { opacity: 0.8; }
.card--text .card__body {
  padding: 24px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.card--text .card__tag {
  font-size: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.card--text .card__title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card--text .card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.card--text .card__meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-3);
  display: flex;
  gap: 6px;
  align-items: center;
}
.card--text .card__lock {
  font-size: 11px;
  color: var(--accent);
  font-weight: 500;
}

/* Category accent colors */
.card--text[data-cat*="tool"]   .card__accent,
.card--text[data-cat*="工具"]   .card__accent { background: #3b82f6; }
.card--text[data-cat*="tool"]   .card__tag,
.card--text[data-cat*="工具"]   .card__tag    { color: #3b82f6; }

.card--text[data-cat*="tutorial"] .card__accent,
.card--text[data-cat*="教程"]     .card__accent { background: #22c55e; }
.card--text[data-cat*="tutorial"] .card__tag,
.card--text[data-cat*="教程"]     .card__tag    { color: #22c55e; }

.card--text[data-cat*="news"]  .card__accent,
.card--text[data-cat*="资讯"]  .card__accent { background: #f97316; }
.card--text[data-cat*="news"]  .card__tag,
.card--text[data-cat*="资讯"]  .card__tag    { color: #f97316; }

.card--text[data-cat*="case"]  .card__accent,
.card--text[data-cat*="案例"]  .card__accent { background: #ec4899; }
.card--text[data-cat*="case"]  .card__tag,
.card--text[data-cat*="案例"]  .card__tag    { color: #ec4899; }

/* ============================
   新增组件样式 v2.0
   ============================ */

/* ---- Hero 轮播图 ---- */
.hero-slider {
  position: relative;
  width: 100%;
  height: 500px;
  overflow: hidden;
  margin-top: 64px; /* nav 高度 */
}
.hero-slider__track { position: relative; width: 100%; height: 100%; }
.hero-slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  display: flex;
  align-items: center;
}
.hero-slide.active { opacity: 1; z-index: 1; }
.hero-slide__overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.5), rgba(0,0,0,0.25));
  z-index: 1;
}
.hero-slide__content {
  position: relative;
  z-index: 2;
  color: #fff;
}
.hero-slide__title {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 16px;
  max-width: 680px;
}
.hero-slide__desc {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 28px;
}
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44px; height: 44px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  transition: background 0.3s;
  display: flex; align-items: center; justify-content: center;
}
.slider-arrow:hover { background: rgba(255,255,255,0.35); }
.slider-arrow--prev { left: 24px; }
.slider-arrow--next { right: 24px; }
.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 10px;
}
.slider-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  border: none;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}
.slider-dot:hover { background: rgba(255,255,255,0.7); }
.slider-dot.active {
  background: #fff;
  transform: scale(1.3);
}

/* ---- 三栏文章布局 ---- */
.article-layout {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: center;
  gap: 40px;
}
.article-toc {
  width: 200px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
  align-self: flex-start;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.article-main {
  max-width: 720px;
  width: 100%;
  min-width: 0;
}
.article-main .article-body {
  padding: 48px 0;
}
.article-sidebar {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
  align-self: flex-start;
}

/* ---- TOC 目录 ---- */
.toc {
  font-size: 13px;
}
.toc__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-left: 14px;
}
.toc__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.toc__item a {
  display: block;
  color: var(--text-3);
  padding: 6px 14px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  transition: all 0.2s;
  line-height: 1.5;
  text-decoration: none;
}
.toc__item a:hover {
  color: var(--text-1);
  background: rgba(0,0,0,0.03);
}
.toc__item.active a {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-bg);
  font-weight: 500;
}
.toc__item--sub a {
  padding-left: 28px;
  font-size: 12px;
}

/* ---- 右侧相关文章侧边栏 ---- */
.sidebar-related__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  padding-bottom: 12px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--border);
}
.sidebar-related__list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.sidebar-related__list li {
  border-bottom: 1px solid var(--border);
}
.sidebar-related__list li:last-child { border-bottom: none; }
.sidebar-related__list li a {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 0;
  text-decoration: none;
  transition: color 0.2s;
}
.sidebar-related__name {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.sidebar-related__list li a:hover .sidebar-related__name {
  color: var(--accent);
}
.sidebar-related__date {
  font-size: 12px;
  color: var(--text-4);
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---- 社媒分享按钮 ---- */
.share-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
}
.share-buttons__label {
  font-size: 13px;
  color: var(--text-4);
  font-weight: 500;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  color: #fff;
}
.share-btn svg { width: 20px; height: 20px; }
.share-btn--wechat { background: #07C160; }
.share-btn--weibo  { background: #E6162D; }
.share-btn--twitter { background: var(--text-1); }

/* ---- 文章分享区域 ---- */
.article-share {
  padding: 24px 0;
  margin-top: 24px;
  border-top: 1px solid var(--border);
}

/* ---- 飞书风格代码块 ---- */
.code-block {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin: 24px 0;
  overflow: hidden;
}
.code-block__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.code-block__lang {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.code-block__copy {
  font-size: 12px;
  color: var(--text-3);
  background: transparent;
  border: none;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s;
}
.code-block__copy:hover {
  background: rgba(0,0,0,0.06);
  color: var(--text-1);
}
.code-block pre {
  background: #1e1e2e !important;
  color: #cdd6f4 !important;
  padding: 20px !important;
  margin: 0 !important;
  border: none !important;
  border-radius: 0 !important;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
}
.code-block pre code {
  background: transparent !important;
  color: inherit !important;
  padding: 0 !important;
}

/* ---- 飞书风格表格 ---- */
.table-wrapper {
  margin: 24px 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.ft-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  border: none;
}
.ft-table th,
.ft-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.ft-table th {
  background: var(--surface);
  font-weight: 600;
  color: var(--text-1);
  font-size: 13px;
}
.ft-table tbody tr:nth-child(even) { background: rgba(0,0,0,0.015); }
.ft-table tbody tr:hover { background: rgba(0,0,0,0.03); }

/* ---- 微信二维码弹窗 ---- */
.wechat-modal {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.wechat-modal.active { opacity: 1; visibility: visible; }
.wechat-modal__box {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 40px;
  text-align: center;
  transform: scale(0.95);
  transition: transform 0.3s;
}
.wechat-modal.active .wechat-modal__box { transform: scale(1); }
.wechat-modal__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 16px;
}
#wechat-qr-code {
  display: flex;
  justify-content: center;
  margin: 16px 0;
}
.wechat-modal__hint {
  font-size: 13px;
  color: var(--text-4);
  margin-top: 12px;
}

/* ---- 搜索弹窗样式 ---- */
.search-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(5,5,5,0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 200px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.search-overlay.active { opacity: 1; visibility: visible; }
.search-overlay__inner {
  width: 100%;
  max-width: 560px;
  padding: 0 24px;
}
.search-overlay__close {
  position: absolute;
  top: 24px; right: 24px;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-3);
  font-size: 18px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.search-overlay__close:hover {
  color: var(--text-1);
  border-color: var(--border-hover);
}

/* ---- 新增响应式 ---- */
@media (max-width: 1280px) {
  .article-toc { display: none; }
}
@media (max-width: 1024px) {
  .article-sidebar { display: none; }
  .article-layout { padding: 0 20px; }
  .article-main { max-width: 100%; }
}
@media (max-width: 900px) {
  .hero-slider { height: 360px; margin-top: 64px; }
  .hero-slide__title { font-size: 32px; }
  .hero-slide__desc { font-size: 16px; }
  .slider-arrow { width: 36px; height: 36px; font-size: 16px; }
  .slider-arrow--prev { left: 12px; }
  .slider-arrow--next { right: 12px; }
}
@media (max-width: 600px) {
  .hero-slider { height: 280px; }
  .hero-slide__title { font-size: 24px; }
  .hero-slide__desc { font-size: 14px; margin-bottom: 16px; }
  .share-buttons { gap: 8px; }
  .share-btn { width: 36px; height: 36px; }
  .share-btn svg { width: 16px; height: 16px; }
}


/* ========================================= */
/* RICHU AI Design Optimization v2.1        */
/* 2026-04-13 — Apple + Stripe 高级感增强     */
/* Gemini 3.1 Pro + Claude 联合优化           */
/* ========================================= */

:root {
  --surface-alt: #f5f6fa;
  --shadow-card: 0 4px 16px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.05);
  --shadow-card-hover: 0 16px 40px rgba(99,102,241,0.15), 0 6px 16px rgba(0,0,0,0.08);
}

/* === 1. Nav 品牌感增强 === */
.nav {
  border-bottom: none;
}
.nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, #a855f7 40%, transparent 80%);
  opacity: 0.6;
}

/* === 2. Hero 间距收紧 === */
.hero {
  padding: 120px 0 40px;
}
.hero__desc {
  margin-bottom: 28px;
}

/* === 3. Section 间距收紧 + 背景交替 === */
.section {
  padding: 48px 0;
}
.section:nth-child(even) {
  background: var(--surface-alt);
}

/* === 4. 卡片可见性大幅增强 === */
.card {
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(0,0,0,0.1);
  transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), box-shadow 0.3s ease, border-color 0.3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(99,102,241,0.3);
}

/* === 5. Featured 卡片装饰增强 === */
.card--featured::before {
  background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(168,85,247,0.1));
}
.card--featured::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #6366f1, #a855f7);
  border-radius: 16px 0 0 16px;
  z-index: 2;
}

/* === 6. Text 卡片色条加宽 === */
.card--text .card__accent {
  height: 5px;
}
.card--text {
  border: 1px solid rgba(0,0,0,0.1);
}

/* === 7. 标签栏现代化 === */
.tab.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(99,102,241,0.25);
}
.tab:not(.active):hover {
  background: rgba(99,102,241,0.08);
  color: var(--accent);
  border-color: rgba(99,102,241,0.2);
}

/* === 8. CTA Banner 渐变增强 === */
.cta-banner {
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(168,85,247,0.15));
  border: 1px solid rgba(99,102,241,0.3);
  box-shadow: 0 8px 32px rgba(99,102,241,0.1);
}

/* === 9. Newsletter 增强 === */
.newsletter {
  background: linear-gradient(135deg, #f8f9ff, #f3f0ff);
  border: 1px solid rgba(99,102,241,0.15);
}

/* === 10. Tabs 分隔线微调 === */
.tabs {
  border-bottom: 2px solid rgba(0,0,0,0.06);
  margin-bottom: 32px;
}

/* === 11. Section Title 装饰 === */
.section__title {
  position: relative;
  display: inline-block;
  padding-bottom: 8px;
}
.section__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 3px;
  background: linear-gradient(90deg, #6366f1, #a855f7);
  border-radius: 2px;
}

/* === 12. 主按钮微渐变 === */
.btn--primary {
  background: linear-gradient(135deg, #1d1d1f, #2d2d30);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.btn--primary:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

/* === 13. Ghost 按钮 hover 品牌色 === */
.btn--ghost {
  border-width: 1.5px;
  border-color: rgba(0,0,0,0.12);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(99,102,241,0.04);
}

/* === 14. Footer 统一背景 === */
.footer {
  background: var(--surface-alt);
}

/* === 15. Ambient 动画增强 === */
.ambient::before {
  background: radial-gradient(circle, rgba(99,102,241,0.1) 0%, transparent 70%);
}
.ambient::after {
  background: radial-gradient(circle, rgba(192,132,252,0.08) 0%, transparent 70%);
}


/* ========================================= */
/* 第二轮优化 v2.2 — Gemini + Claude 联合     */
/* 2026-04-13                                */
/* ========================================= */

/* === R2-1. Hero 渐变光晕（Stripe 风格） === */
.hero {
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,0.15) 0%, transparent 70%);
  top: -100px;
  left: -150px;
  z-index: 0;
  filter: blur(60px);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(168,85,247,0.1) 0%, transparent 70%);
  bottom: -100px;
  right: -100px;
  z-index: 0;
  filter: blur(60px);
  pointer-events: none;
}
.hero > * {
  position: relative;
  z-index: 1;
}

/* === R2-2. Ghost 按钮增强 — accent 边框 === */
.btn--ghost {
  border: 2px solid rgba(99,102,241,0.35);
  color: var(--accent);
  font-weight: 600;
}
.btn--ghost:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(99,102,241,0.25);
}

/* === R2-3. 文字卡片 hover 箭头微交互 === */
.card--text {
  position: relative;
}
.card--text::after {
  content: '\2192';
  position: absolute;
  top: 16px;
  right: 20px;
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 3;
}
.card--text:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* === R2-4. 色条 hover 动画 === */
.card--text .card__accent {
  transition: height 0.3s ease;
}
.card--text:hover .card__accent {
  height: 6px;
}

/* === R2-5. 移动端间距优化 === */
@media (max-width: 900px) {
  .hero {
    padding: 88px 0 32px;
  }
  .section {
    padding: 36px 0;
  }
}
@media (max-width: 600px) {
  .hero {
    padding: 76px 0 24px;
  }
  .section {
    padding: 28px 0;
  }
}


/* =================================================================
   ROUND 3-7: 深度优化 — Gemini + Claude 联合 (v2.3)
   2026-04-13
   ================================================================= */

/* === ROUND 3: 排版与阅读体验 === */

body {
  text-rendering: optimizeLegibility;
}

.hero__title {
  font-size: 56px;
  letter-spacing: -0.05em;
  font-weight: 900;
}
.section__title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.card--featured .card__title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.35;
}
.card--text .card__title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.card__desc {
  line-height: 1.75;
}
.article-body a {
  text-decoration: none;
  box-shadow: inset 0 -2px 0 var(--accent-bg);
  transition: box-shadow 0.2s, background 0.2s;
}
.article-body a:hover {
  background: var(--accent-bg);
  box-shadow: none;
}

/* === ROUND 4: 导航栏升级 + Logo 增强 === */

.nav__logo {
  background: linear-gradient(135deg, var(--accent), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 18px;
  font-weight: 900;
}
.nav__logo::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--accent), #a855f7);
  transform: rotate(45deg);
  vertical-align: middle;
  flex-shrink: 0;
}

.nav__links .menu li a {
  position: relative;
}
.nav__links .menu li a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease, left 0.3s ease;
  border-radius: 1px;
}
.nav__links .menu li a:hover::after,
.nav__links .menu li.current-menu-item a::after,
.nav__links .menu li.current_page_item a::after {
  width: 100%;
  left: 0;
}

.nav__cta {
  background: linear-gradient(135deg, var(--accent), #a855f7);
  border: none;
  box-shadow: 0 4px 14px rgba(99,102,241,0.3);
  transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}
.nav__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99,102,241,0.4);
  filter: brightness(1.08);
  opacity: 1;
}

.nav__search:hover {
  background: var(--accent-bg);
  color: var(--accent);
}

/* === ROUND 5: 卡片内容布局精化 === */

.card__tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: var(--accent-bg);
}
.card--text[data-cat*="\5DE5\5177"] .card__tag { background: rgba(59,130,246,0.1); color: #3b82f6; }
.card--text[data-cat*="\6559\7A0B"] .card__tag { background: rgba(34,197,94,0.1); color: #22c55e; }
.card--text[data-cat*="\8D44\8BAF"] .card__tag { background: rgba(249,115,22,0.1); color: #f97316; }
.card--text[data-cat*="\6848\4F8B"] .card__tag { background: rgba(236,72,153,0.1); color: #ec4899; }

.card__meta {
  font-variant-numeric: tabular-nums;
}
.card--featured {
  justify-content: center;
  padding: 36px;
}

/* === ROUND 6: CTA + Newsletter + Footer 升级 === */

.cta-banner {
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99,102,241,0.2) 0%, transparent 70%);
  top: -150px;
  left: -100px;
  z-index: 0;
  animation: ctaPulse1 8s ease-in-out infinite alternate;
  pointer-events: none;
}
.cta-banner::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(168,85,247,0.15) 0%, transparent 70%);
  bottom: -120px;
  right: -80px;
  z-index: 0;
  animation: ctaPulse2 10s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes ctaPulse1 {
  0% { transform: scale(0.9); opacity: 0.6; }
  100% { transform: scale(1.2); opacity: 1; }
}
@keyframes ctaPulse2 {
  0% { transform: scale(1.2); opacity: 0.8; }
  100% { transform: scale(0.85); opacity: 0.5; }
}
.cta-banner__title,
.cta-banner__desc,
.cta-banner .btn {
  position: relative;
  z-index: 1;
}

.newsletter__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg), 0 0 16px rgba(99,102,241,0.1);
  outline: none;
}
.newsletter__btn {
  background: linear-gradient(135deg, var(--accent), #a855f7);
  border: none;
  box-shadow: 0 4px 14px rgba(99,102,241,0.25);
}
.newsletter__btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 6px 20px rgba(99,102,241,0.35);
}

.footer {
  background: linear-gradient(180deg, var(--surface-alt), #eef0f6);
  border-top: 2px solid rgba(99,102,241,0.1);
}
.footer__link:hover {
  color: var(--accent);
}

/* === ROUND 7: 动效 + 全局抛光 === */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero {
  animation: fadeInUp 0.8s ease-out both;
}
.tabs {
  animation: fadeInUp 0.6s ease-out 0.2s both;
}
.section {
  animation: fadeInUp 0.6s ease-out both;
}
.card {
  animation: fadeInUp 0.5s ease-out both;
}
.card-grid--3 .card:nth-child(2) { animation-delay: 0.1s; }
.card-grid--3 .card:nth-child(3) { animation-delay: 0.2s; }
.card-grid--2 .card:nth-child(2) { animation-delay: 0.15s; }

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(99,102,241,0.4); }

::selection {
  background: rgba(99,102,241,0.25);
  color: var(--text-1);
}

.card__img img {
  transition: transform 0.4s ease;
}
.card:hover .card__img img {
  transform: scale(1.05);
}

.btn:active {
  transform: translateY(0) scale(0.98);
  transition: transform 0.1s;
}

.paywall__box {
  box-shadow: 0 8px 32px rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.15);
}
.pricing-card--featured {
  box-shadow: 0 8px 32px rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.2);
}
.pricing-card--featured::before {
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #a855f7);
}

.search-overlay .search-field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(99,102,241,0.15), 0 0 24px rgba(99,102,241,0.1);
}


/* =================================================================
   视觉元素增强 v2.4 — 纯 CSS 图像方案 (Gemini + Claude)
   2026-04-13
   ================================================================= */

/* === 1. Hero 点阵网格背景（科技感） === */
.hero {
  background-image: radial-gradient(circle, rgba(99,102,241,0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* === 2. Featured 卡片 Stripe 风格多层光斑 === */
.card--featured::before {
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(99,102,241,0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 75% 30%, rgba(56,189,248,0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 85% 80%, rgba(168,85,247,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 40% 90%, rgba(236,72,153,0.08) 0%, transparent 40%);
  background-size: 200% 200%;
  filter: blur(30px);
  transform: scale(1.2);
  animation: featuredGlow 15s ease-in-out infinite alternate;
}
@keyframes featuredGlow {
  from { transform: translate(0, 0) scale(1.2); }
  to { transform: translate(8px, -8px) scale(1.25); }
}

/* === 3. 分类色条+标签色修复（URL编码选择器） === */
.card--text[data-cat*="%e5%b7%a5%e5%85%b7"] .card__accent { background: #3b82f6; }
.card--text[data-cat*="%e5%b7%a5%e5%85%b7"] .card__tag { color: #3b82f6; background-color: rgba(59,130,246,0.1); }
.card--text[data-cat*="%e6%95%99%e7%a8%8b"] .card__accent { background: #22c55e; }
.card--text[data-cat*="%e6%95%99%e7%a8%8b"] .card__tag { color: #22c55e; background-color: rgba(34,197,94,0.1); }
.card--text[data-cat*="%e8%b5%84%e8%ae%af"] .card__accent { background: #f97316; }
.card--text[data-cat*="%e8%b5%84%e8%ae%af"] .card__tag { color: #f97316; background-color: rgba(249,115,22,0.1); }
.card--text[data-cat*="%e6%a1%88%e4%be%8b"] .card__accent { background: #ec4899; }
.card--text[data-cat*="%e6%a1%88%e4%be%8b"] .card__tag { color: #ec4899; background-color: rgba(236,72,153,0.1); }

/* === 4. 分类标签 SVG 图标 === */
.card__tag {
  padding-left: 24px;
  background-repeat: no-repeat;
  background-position: left 8px center;
  background-size: 12px 12px;
}
.card--text[data-cat*="%e6%95%99%e7%a8%8b"] .card__tag {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2322c55e' stroke-width='2'%3E%3Cpath d='M2 3h6a4 4 0 0 1 4 4v14a3 3 0 0 0-3-3H2z'/%3E%3Cpath d='M22 3h-6a4 4 0 0 0-4 4v14a3 3 0 0 1 3-3h7z'/%3E%3C/svg%3E");
}
.card--text[data-cat*="%e8%b5%84%e8%ae%af"] .card__tag {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f97316' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M2 12h20M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z'/%3E%3C/svg%3E");
}
.card--text[data-cat*="%e6%a1%88%e4%be%8b"] .card__tag {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ec4899' stroke-width='2'%3E%3Cpath d='M6 9H4.5a2.5 2.5 0 0 1 0-5H6M18 9h1.5a2.5 2.5 0 0 0 0-5H18M4 22h16M18 2H6v7a6 6 0 0 0 12 0V2z'/%3E%3C/svg%3E");
}
.card--featured .card__tag,
.card--text[data-cat*="%e5%b7%a5%e5%85%b7"] .card__tag {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2'%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3Cpath d='M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42'/%3E%3C/svg%3E");
}

/* === 5. Section 标题紫色圆点 === */
.section__title::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, var(--accent), #a855f7);
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: middle;
}

/* === 6. CTA Banner 波浪纹装饰 === */
.cta-banner {
  background-image: 
    url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='20' viewBox='0 0 120 20'%3E%3Cpath d='M0 10 Q30 0 60 10 T120 10' fill='none' stroke='rgba(99,102,241,0.07)' stroke-width='1'/%3E%3C/svg%3E"),
    linear-gradient(135deg, rgba(99,102,241,0.2), rgba(168,85,247,0.15));
  background-size: 120px 20px, 100% 100%;
  background-repeat: repeat, no-repeat;
}

/* === 7. 文章页 Blockquote 大引号装饰 === */
.article-body blockquote {
  position: relative;
  padding: 24px 24px 24px 48px;
  background: linear-gradient(135deg, rgba(99,102,241,0.04), rgba(168,85,247,0.03));
  border-radius: 0 12px 12px 0;
}
.article-body blockquote::before {
  content: '\201C';
  position: absolute;
  top: -8px;
  left: 12px;
  font-size: 64px;
  font-weight: 900;
  color: rgba(99,102,241,0.12);
  line-height: 1;
  font-family: Georgia, serif;
}

/* === Mobile card tag fix (2026-04-13) === */
.card--text .card__tag {
  align-self: flex-start;
  background-repeat: no-repeat !important;
  background-size: 12px 12px !important;
  background-position: left 8px center !important;
}


/* ============================================================
   Round 8 – 做减法：去装饰、提内容（Gemini 审美建议）
   ============================================================ */

/* 1. 移除 Hero 点阵背景 */
.hero {
  background-image: none !important;
  background-size: initial !important;
}

/* 2. 降低 Hero 光晕透明度 */
.hero::before { opacity: 0.5 !important; }
.hero::after  { opacity: 0.4 !important; }

/* 3. Featured 卡片 — 静态柔和渐变，去掉动画光斑 */
.card--featured::before {
  background-image: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(168,85,247,0.05)) !important;
  background-size: 100% 100% !important;
  filter: none !important;
  transform: none !important;
  animation: none !important;
}

/* 4. 导航链接 hover — 灰色底色替代紫色下划线 */
.nav__links .menu li a::after { display: none !important; }
.nav__links .menu li a:hover {
  color: var(--text-1) !important;
  background: rgba(0,0,0,0.04) !important;
}

/* 5. 板块标题 — 移除底部渐变装饰线（保留圆点） */
.section__title::after { display: none !important; }

/* 6. 搜索按钮 hover — 灰色而非紫色 */
.nav__search:hover {
  background: rgba(0,0,0,0.05) !important;
  color: var(--text-2) !important;
}

/* 7. 移除瀑布入场动画（仅保留 Hero 渐入） */
.hero    { animation: fadeInUp 0.5s ease-out both !important; }
.section { animation: none !important; }
.card    { animation: none !important; }
.tabs    { animation: none !important; }

/* 8. Ghost 按钮 — 中性灰 */
.btn--ghost {
  border: 1.5px solid rgba(0,0,0,0.15) !important;
  color: var(--text-2) !important;
}
.btn--ghost:hover {
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  background: rgba(99,102,241,0.04) !important;
  transform: translateY(-1px) !important;
  box-shadow: none !important;
}

/* 9. 移除自定义紫色滚动条（恢复系统默认） */
::-webkit-scrollbar       { width: initial; height: initial; }
::-webkit-scrollbar-track  { background: initial; }
::-webkit-scrollbar-thumb  { background: initial; border-radius: initial; }
::-webkit-scrollbar-thumb:hover { background: initial; }

/* 10. CTA 区域 — 移除脉冲动画 */
.cta-banner::before { animation: none !important; opacity: 0.7 !important; }
.cta-banner::after  { animation: none !important; opacity: 0.5 !important; }

/* 11. 卡片标题 — 加粗，让内容更突出 */
.card--featured .card__title {
  font-size: 24px !important;
  font-weight: 800 !important;
  color: var(--text-1) !important;
}
.card--text .card__title {
  font-size: 17px !important;
  font-weight: 700 !important;
  color: var(--text-1) !important;
}
.card__desc { color: var(--text-2) !important; }


/* ============================================================
   Round 9 – 精修打磨（Gemini 细节建议）
   ============================================================ */

/* 1. Hero 底部间距加大，增强呼吸感 (40px → 72px) */
.hero {
  padding-bottom: 72px !important;
}

/* 2. 卡片阴影更柔和：Y偏移 4→2，透明度 0.08→0.06 */
.card {
  box-shadow: 0px 2px 16px rgba(0,0,0,0.06), 0px 1px 4px rgba(0,0,0,0.04) !important;
}

/* 3. 卡片 hover 微上浮 + 阴影加深，过渡 250ms */
.card {
  transition: transform 250ms ease-out, box-shadow 250ms ease-out, border-color 250ms ease-out !important;
}
.card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0px 8px 28px rgba(0,0,0,0.10), 0px 2px 8px rgba(0,0,0,0.06) !important;
}

/* 4. Text 卡片标题：17px/700 → 16px/600 + 微字间距 */
.card--text .card__title {
  font-size: 16px !important;
  font-weight: 600 !important;
  letter-spacing: 0.01em !important;
}

/* 5. 次要文字降低对比度，强化层级 (0.75 → 0.6) */
.card__desc {
  color: rgba(0,0,0,0.6) !important;
}
.card__meta {
  color: rgba(0,0,0,0.45) !important;
}

/* 6. 板块间距统一增加到 64px，建立稳定节奏 (48→64) */
.section {
  padding-top: 64px !important;
  padding-bottom: 64px !important;
}

/* 7. Hero 大标题 letter-spacing 微调 */
.hero__title {
  letter-spacing: -0.02em !important;
}

/* 8. Hero 副标题行高优化 */
.hero__desc {
  line-height: 1.7 !important;
}


/* ============================================================
   PHASE 1: Major Visual Redesign (Claude x Gemini)
   2026-04-14
   目标: 从博客模板级别提升到专业知识平台级别
   ============================================================ */

/* --- 1. HERO AREA: Mesh Gradient Background + Grid --- */
.hero {
  background-color: #fafafe !important;
  background-image:
    linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px) !important;
  background-size: 40px 40px !important;
  position: relative !important;
  overflow: hidden !important;
}
.hero::before {
  content: '' !important;
  position: absolute !important;
  top: -20% !important;
  left: -15% !important;
  width: 50vw !important;
  height: 50vw !important;
  max-width: 600px !important;
  max-height: 600px !important;
  background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 70%) !important;
  border-radius: 50% !important;
  filter: blur(60px) !important;
  z-index: 0 !important;
  opacity: 0.7 !important;
  animation: heroBlob1 18s ease-in-out infinite alternate !important;
  will-change: transform !important;
  pointer-events: none !important;
}
.hero::after {
  content: '' !important;
  position: absolute !important;
  bottom: -10% !important;
  right: -10% !important;
  width: 40vw !important;
  height: 40vw !important;
  max-width: 500px !important;
  max-height: 500px !important;
  background: radial-gradient(circle, rgba(168,85,247,0.10) 0%, transparent 70%) !important;
  border-radius: 50% !important;
  filter: blur(60px) !important;
  z-index: 0 !important;
  opacity: 0.6 !important;
  animation: heroBlob2 20s ease-in-out infinite alternate !important;
  will-change: transform !important;
  pointer-events: none !important;
}
@keyframes heroBlob1 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5%, 8%) scale(1.08); }
}
@keyframes heroBlob2 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-4%, -6%) scale(1.05); }
}
.hero .container,
.hero__title,
.hero__desc,
.hero__actions {
  position: relative !important;
  z-index: 1 !important;
}

/* Hero title gradient enhancement */
.hero__title {
  font-size: clamp(40px, 6vw, 64px) !important;
  font-weight: 900 !important;
  letter-spacing: -0.035em !important;
}
.hero__title span {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 40%, #a855f7 100%) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
}
.hero__desc {
  font-size: 17px !important;
  color: rgba(0,0,0,0.55) !important;
  line-height: 1.75 !important;
  max-width: 520px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* --- 2. NAVIGATION: Glassmorphism sticky --- */
.nav {
  background: rgba(255,255,255,0.82) !important;
  backdrop-filter: blur(16px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(16px) saturate(180%) !important;
  border-bottom: 1px solid rgba(0,0,0,0.06) !important;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04) !important;
}

/* --- 3. TABS: Modern pill style with accent active --- */
.tab.active {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: 0 2px 8px rgba(99,102,241,0.25) !important;
}
.tab:hover:not(.active) {
  background: rgba(99,102,241,0.06) !important;
  color: var(--accent) !important;
}

/* --- 4. CARDS: Enhanced hover with title color transition --- */
.card {
  border: 1px solid rgba(0,0,0,0.06) !important;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03) !important;
  transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1),
              border-color 280ms cubic-bezier(0.4, 0, 0.2, 1) !important;
}
.card:hover {
  transform: translateY(-6px) !important;
  box-shadow: 0 12px 28px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04) !important;
  border-color: rgba(99,102,241,0.15) !important;
}
.card:hover .card__title {
  color: var(--accent) !important;
}
.card__title {
  transition: color 200ms ease !important;
  font-size: 16px !important;
  font-weight: 650 !important;
  line-height: 1.55 !important;
  color: #0f172a !important;
}
.card__desc {
  color: #64748b !important;
  line-height: 1.65 !important;
}
.card__meta {
  color: #94a3b8 !important;
  font-size: 12px !important;
}
.card__tag {
  font-size: 11px !important;
  font-weight: 600 !important;
  letter-spacing: 0.04em !important;
  padding: 3px 10px 3px 28px !important;
  border-radius: 100px !important;
  display: inline-flex !important;
  align-items: center !important;
}

/* Featured card enhancement */
.card--featured {
  min-height: 280px !important;
  border-radius: 20px !important;
  border: 1px solid rgba(99,102,241,0.1) !important;
}
.card--featured .card__title {
  font-size: 22px !important;
  font-weight: 800 !important;
  line-height: 1.35 !important;
  letter-spacing: -0.02em !important;
}
.card--featured:hover .card__title {
  color: var(--accent) !important;
}

/* Card accent bar (left side) enhancement */
.card__accent {
  width: 4px !important;
  border-radius: 0 4px 4px 0 !important;
  transition: width 200ms ease !important;
}
.card:hover .card__accent {
  width: 5px !important;
}

/* --- 5. SECTIONS: Alternating backgrounds for rhythm --- */
.section:nth-of-type(odd) {
  background-color: #ffffff !important;
}
.section:nth-of-type(even) {
  background-color: #f8fafc !important;
}
.section {
  padding: 72px 0 !important;
}
.section__title {
  font-size: 24px !important;
  font-weight: 800 !important;
  letter-spacing: -0.03em !important;
  color: #0f172a !important;
}
.section__more {
  font-size: 14px !important;
  font-weight: 500 !important;
  color: var(--accent) !important;
  transition: all 200ms ease !important;
}
.section__more:hover {
  color: #4f46e5 !important;
  transform: translateX(2px) !important;
}

/* --- 6. CTA BANNER: Premium dark glass style --- */
.cta-banner {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #3730a3 100%) !important;
  border: none !important;
  border-radius: 20px !important;
  padding: 64px !important;
  position: relative !important;
  overflow: hidden !important;
  background-image: none !important;
}
.cta-banner::before {
  content: '' !important;
  position: absolute !important;
  top: -50% !important;
  right: -20% !important;
  width: 400px !important;
  height: 400px !important;
  background: radial-gradient(circle, rgba(139,92,246,0.3) 0%, transparent 70%) !important;
  border-radius: 50% !important;
  filter: blur(40px) !important;
  animation: none !important;
  opacity: 1 !important;
  pointer-events: none !important;
}
.cta-banner::after {
  content: '' !important;
  position: absolute !important;
  bottom: -30% !important;
  left: -10% !important;
  width: 300px !important;
  height: 300px !important;
  background: radial-gradient(circle, rgba(99,102,241,0.2) 0%, transparent 70%) !important;
  border-radius: 50% !important;
  filter: blur(40px) !important;
  animation: none !important;
  opacity: 1 !important;
  pointer-events: none !important;
}
.cta-banner__title {
  color: #ffffff !important;
  font-size: 32px !important;
  font-weight: 800 !important;
  letter-spacing: -0.03em !important;
  position: relative !important;
  z-index: 1 !important;
}
.cta-banner__desc {
  color: rgba(255,255,255,0.75) !important;
  font-size: 16px !important;
  position: relative !important;
  z-index: 1 !important;
}
.cta-banner .btn--accent {
  background: #ffffff !important;
  color: #4338ca !important;
  font-weight: 700 !important;
  border-radius: 12px !important;
  padding: 16px 36px !important;
  font-size: 15px !important;
  position: relative !important;
  z-index: 1 !important;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15) !important;
  transition: all 250ms ease !important;
}
.cta-banner .btn--accent:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2) !important;
}

/* --- 7. NEWSLETTER: Subtle gradient background --- */
.newsletter {
  background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 50%, #e0e7ff 100%) !important;
  border: 1px solid rgba(99,102,241,0.12) !important;
  border-radius: 20px !important;
  padding: 56px 48px !important;
}
.newsletter__title {
  font-size: 26px !important;
  font-weight: 800 !important;
  color: #1e1b4b !important;
}
.newsletter__desc {
  color: #475569 !important;
}
.newsletter__input {
  border: 1.5px solid rgba(99,102,241,0.2) !important;
  border-radius: 12px !important;
  padding: 14px 20px !important;
  font-size: 15px !important;
  transition: border-color 200ms, box-shadow 200ms !important;
}
.newsletter__input:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 4px rgba(99,102,241,0.12) !important;
  outline: none !important;
}
.newsletter__btn {
  border-radius: 12px !important;
  padding: 14px 28px !important;
  font-size: 15px !important;
  font-weight: 600 !important;
  background: #4f46e5 !important;
  transition: all 200ms ease !important;
}
.newsletter__btn:hover {
  background: #4338ca !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(99,102,241,0.3) !important;
}

/* --- 8. FOOTER: Dark professional footer --- */
.footer {
  background: #0f172a !important;
  border-top: none !important;
  padding: 48px 0 !important;
}
.footer__left {
  color: rgba(255,255,255,0.5) !important;
}
.footer__link {
  color: rgba(255,255,255,0.5) !important;
}
.footer__link:hover {
  color: rgba(255,255,255,0.85) !important;
}

/* --- 9. BUTTONS: Refined primary & ghost buttons --- */
.btn--primary {
  background: #18181b !important;
  color: #fff !important;
  border-radius: 12px !important;
  font-weight: 600 !important;
  transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1) !important;
}
.btn--primary:hover {
  background: #27272a !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15) !important;
}
.btn--ghost {
  border-radius: 12px !important;
  border: 1.5px solid rgba(0,0,0,0.12) !important;
  color: #374151 !important;
  font-weight: 600 !important;
  transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1) !important;
}
.btn--ghost:hover {
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  background: rgba(99,102,241,0.05) !important;
  transform: translateY(-2px) !important;
}

/* --- 10. SCROLL TO TOP & GLOBAL REFINEMENTS --- */
body {
  -webkit-font-smoothing: antialiased !important;
  -moz-osx-font-smoothing: grayscale !important;
}

/* Smooth scroll */
html {
  scroll-behavior: smooth !important;
}

/* Selection color */
::selection {
  background: rgba(99,102,241,0.15);
  color: #1e1b4b;
}

/* --- 11. MOBILE OPTIMIZATIONS --- */
@media (max-width: 900px) {
  .hero::before, .hero::after {
    filter: blur(40px) !important;
    animation: none !important;
  }
  .hero__title {
    font-size: clamp(32px, 8vw, 48px) !important;
  }
  .cta-banner {
    padding: 40px 24px !important;
  }
  .cta-banner__title {
    font-size: 24px !important;
  }
  .newsletter {
    padding: 40px 24px !important;
  }
  .section {
    padding: 56px 0 !important;
  }
  .card:hover {
    transform: none !important;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 90px 0 56px !important;
  }
  .hero__title {
    font-size: 32px !important;
  }
  .hero__desc {
    font-size: 15px !important;
    padding: 0 12px !important;
  }
  .cta-banner__title {
    font-size: 20px !important;
  }
  .section {
    padding: 48px 0 !important;
  }
}


/* ============================================================
   PHASE 2: Paywall Gradient + Scroll Animations + View Counter
   2026-04-14
   ============================================================ */

/* --- Paywall gradient fade --- */
.paywall-content-wrapper {
  position: relative;
  overflow: hidden;
  max-height: 600px;
}
.paywall-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 200px;
  background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,0.85) 50%, rgba(255,255,255,1) 100%);
  pointer-events: none;
  z-index: 10;
}
.paywall {
  padding-top: 40px !important;
  background: none !important;
}
.paywall__box {
  background: #ffffff !important;
  border: 1px solid rgba(99,102,241,0.15) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.08) !important;
  border-radius: 20px !important;
  padding: 48px 40px !important;
}
.paywall__icon {
  width: 64px !important;
  height: 64px !important;
  border-radius: 16px !important;
  background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(168,85,247,0.1)) !important;
  font-size: 28px !important;
}
.paywall__perks {
  margin: 20px 0 28px;
  text-align: left;
  max-width: 280px;
  margin-left: auto;
  margin-right: auto;
}
.paywall__perk {
  font-size: 14px;
  color: #374151;
  padding: 6px 0;
  line-height: 1.6;
}

/* --- Scroll animations (no library) --- */
.animate-ready {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.animate-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
}
/* Stagger cards */
.card-grid .card.animate-ready:nth-child(2) { transition-delay: 0.08s; }
.card-grid .card.animate-ready:nth-child(3) { transition-delay: 0.16s; }
.card-grid .card.animate-ready:nth-child(4) { transition-delay: 0.24s; }
.card-grid .card.animate-ready:nth-child(5) { transition-delay: 0.32s; }
.card-grid .card.animate-ready:nth-child(6) { transition-delay: 0.40s; }

/* Disable scroll animations on mobile (performance) */
@media (max-width: 900px) {
  .animate-ready {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- View count in card meta --- */
.card__meta span:last-child {
  opacity: 0.7;
}

/* --- Nav category links --- */
.nav__link {
  font-size: 14px;
  color: var(--text-3);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.nav__link:hover,
.nav__link.active {
  color: var(--text-1);
  background: rgba(0,0,0,0.04);
}


/* ============================================================
   V3 MEGA REDESIGN - "报业双栏布局"
   Claude x Gemini 联合设计 | 2026-04-14
   ============================================================ */

/* --- DESIGN TOKENS --- */
:root {
  --bg-body: #F8F9FA;
  --bg-card: #FFFFFF;
  --bg-sidebar: #F9FAFB;
  --brand-primary: #4C1D95;
  --brand-primary-hover: #5B21B6;
  --brand-accent: #059669;
  --brand-accent-light: #D1FAE5;
  --text-heading: #111827;
  --text-body: #374151;
  --text-muted: #6B7280;
  --border-light: #E5E7EB;
  --border-hover: #D1D5DB;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 25px rgba(0,0,0,0.08);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- GLOBAL RESET --- */
body {
  background: var(--bg-body) !important;
  font-family: var(--font-sans) !important;
  color: var(--text-body) !important;
  -webkit-font-smoothing: antialiased !important;
  margin: 0 !important;
  padding: 0 !important;
}
*, *::before, *::after { box-sizing: border-box; }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(76,29,149,0.12); }

/* --- HEADER --- */
.site-header {
  position: sticky !important;
  top: 0 !important;
  z-index: 100 !important;
  background: rgba(255,255,255,0.92) !important;
  backdrop-filter: blur(12px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(12px) saturate(180%) !important;
  border-bottom: 1px solid var(--border-light) !important;
  height: 64px !important;
}
.header-inner {
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 0 24px !important;
  height: 100% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
}
.header-logo {
  font-size: 18px !important;
  font-weight: 800 !important;
  color: var(--text-heading) !important;
  letter-spacing: -0.02em !important;
  text-decoration: none !important;
  flex-shrink: 0 !important;
}
.logo-icon { color: var(--brand-primary); }
.header-nav {
  display: flex !important;
  gap: 8px !important;
  position: absolute !important;
  left: 50% !important;
  transform: translateX(-50%) !important;
}
.nav-item {
  font-size: 14px !important;
  font-weight: 500 !important;
  color: var(--text-muted) !important;
  padding: 8px 14px !important;
  border-radius: 6px !important;
  transition: all 0.15s var(--ease) !important;
  white-space: nowrap !important;
}
.nav-item:hover {
  color: var(--text-heading) !important;
  background: rgba(0,0,0,0.04) !important;
}
.header-actions {
  display: flex !important;
  align-items: center !important;
  gap: 16px !important;
}
.header-search-btn {
  width: 36px !important; height: 36px !important;
  border-radius: 8px !important;
  border: none !important;
  background: transparent !important;
  color: var(--text-muted) !important;
  cursor: pointer !important;
  display: flex !important; align-items: center !important; justify-content: center !important;
  transition: all 0.15s !important;
}
.header-search-btn:hover { background: rgba(0,0,0,0.05) !important; color: var(--text-heading) !important; }
.header-cta {
  font-size: 13px !important;
  font-weight: 600 !important;
  color: #fff !important;
  background: var(--text-heading) !important;
  padding: 8px 18px !important;
  border-radius: 9999px !important;
  transition: all 0.2s var(--ease) !important;
}
.header-cta:hover { background: var(--brand-primary) !important; transform: translateY(-1px) !important; }
.header-menu-btn {
  display: none !important;
  width: 36px !important; height: 36px !important;
  border: none !important; background: transparent !important;
  color: var(--text-heading) !important; cursor: pointer !important;
}

/* --- MOBILE DRAWER --- */
.mobile-drawer {
  display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
  background: #fff; z-index: 99; padding: 24px;
  flex-direction: column; gap: 4px;
  transform: translateX(-100%); transition: transform 0.25s var(--ease);
}
.mobile-drawer.active { display: flex !important; transform: translateX(0) !important; }
.mobile-drawer__cta {
  display: block; text-align: center; padding: 14px; border-radius: 10px;
  background: var(--brand-primary); color: #fff; font-weight: 700; font-size: 15px; margin-bottom: 16px;
}
.mobile-drawer__link {
  display: block; padding: 14px 12px; font-size: 16px; color: var(--text-body);
  border-bottom: 1px solid var(--border-light);
}

/* --- LAYOUT GRID --- */
.site-main {
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 32px 24px !important;
}
.layout-grid {
  display: grid !important;
  grid-template-columns: 1fr 340px !important;
  gap: 48px !important;
  align-items: start !important;
}
.layout-sidebar {
  position: sticky !important;
  top: 96px !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 32px !important;
}

/* --- HERO CARD (头条大卡) --- */
.hero-card {
  display: block !important;
  background: linear-gradient(135deg, #4C1D95 0%, #6D28D9 50%, #7C3AED 100%) !important;
  border-radius: var(--radius-lg) !important;
  padding: 48px 40px !important;
  color: #fff !important;
  text-decoration: none !important;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease) !important;
  margin-bottom: 32px !important;
}
.hero-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 20px 40px rgba(76,29,149,0.2) !important;
  color: #fff !important;
}
.hero-card__cat {
  font-size: 12px !important; font-weight: 600 !important;
  letter-spacing: 0.08em !important; text-transform: uppercase !important;
  color: rgba(255,255,255,0.7) !important; margin-bottom: 16px !important;
}
.hero-card__title {
  font-size: 30px !important; font-weight: 800 !important;
  line-height: 1.3 !important; letter-spacing: -0.02em !important;
  margin-bottom: 16px !important; color: #fff !important;
}
.hero-card__excerpt {
  font-size: 16px !important; line-height: 1.7 !important;
  color: rgba(255,255,255,0.8) !important; margin-bottom: 20px !important;
  max-width: 560px !important;
}
.hero-card__meta {
  font-size: 13px !important; color: rgba(255,255,255,0.6) !important;
  display: flex !important; gap: 8px !important; align-items: center !important;
}

/* --- PRO BADGE --- */
.pro-badge {
  display: inline-block !important;
  font-size: 10px !important; font-weight: 700 !important;
  letter-spacing: 0.05em !important;
  background: #FEF08A !important; color: #854D0E !important;
  padding: 2px 8px !important; border-radius: var(--radius-sm) !important;
}

/* --- CATEGORY TABS --- */
.cat-tabs {
  display: flex !important; gap: 6px !important;
  margin-bottom: 32px !important;
  border-bottom: 1px solid var(--border-light) !important;
  padding-bottom: 0 !important;
  overflow-x: auto !important;
}
.cat-tab {
  font-size: 14px !important; font-weight: 500 !important;
  color: var(--text-muted) !important; padding: 10px 16px !important;
  border-bottom: 2px solid transparent !important;
  transition: all 0.15s var(--ease) !important;
  white-space: nowrap !important;
  margin-bottom: -1px !important;
}
.cat-tab:hover { color: var(--text-heading) !important; }
.cat-tab.active {
  color: var(--brand-primary) !important;
  border-bottom-color: var(--brand-primary) !important;
  font-weight: 600 !important;
}

/* --- SECTION HEADING --- */
.section-heading {
  font-size: 20px !important; font-weight: 700 !important;
  color: var(--text-heading) !important; letter-spacing: -0.02em !important;
  margin-bottom: 24px !important;
  padding-bottom: 12px !important;
  border-bottom: 2px solid var(--text-heading) !important;
  display: inline-block !important;
}

/* --- FEED CARD (情报流主卡) --- */
.news-feed { display: flex !important; flex-direction: column !important; }
.feed-card {
  display: flex !important;
  justify-content: space-between !important;
  align-items: flex-start !important;
  gap: 20px !important;
  padding: 24px 0 !important;
  border-bottom: 1px solid var(--border-light) !important;
  transition: all 0.15s var(--ease) !important;
  color: inherit !important;
}
.feed-card:hover { background: rgba(0,0,0,0.01) !important; padding-left: 12px !important; }
.feed-card:hover .feed-card__title { color: var(--brand-primary) !important; }
.feed-card__content { flex: 1 !important; min-width: 0 !important; }
.feed-card__meta {
  display: flex !important; align-items: center !important; gap: 10px !important;
  margin-bottom: 8px !important;
}
.feed-card__cat {
  font-size: 12px !important; font-weight: 600 !important;
  color: var(--brand-primary) !important;
}
.feed-card__cat[data-cat*="工具"] { color: #2563EB; }
.feed-card__cat[data-cat*="教程"] { color: #059669; }
.feed-card__cat[data-cat*="资讯"] { color: #D97706; }
.feed-card__cat[data-cat*="案例"] { color: #DB2777; }
.feed-card__time { font-size: 12px !important; color: var(--text-muted) !important; }
.feed-card__title {
  font-size: 18px !important; font-weight: 700 !important;
  color: var(--text-heading) !important; line-height: 1.5 !important;
  margin-bottom: 6px !important;
  transition: color 0.15s var(--ease) !important;
  display: -webkit-box !important; -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important; overflow: hidden !important;
}
.feed-card__excerpt {
  font-size: 14px !important; color: var(--text-muted) !important;
  line-height: 1.65 !important;
  display: -webkit-box !important; -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important; overflow: hidden !important;
  margin-bottom: 8px !important;
}
.feed-card__stats {
  font-size: 12px !important; color: #9CA3AF !important;
  display: flex !important; gap: 8px !important;
}
.feed-card__number {
  font-family: var(--font-mono) !important;
  font-size: 32px !important; font-weight: 800 !important;
  color: rgba(0,0,0,0.06) !important;
  line-height: 1 !important; flex-shrink: 0 !important;
  padding-top: 4px !important;
}
.feed-card:hover .feed-card__number { color: rgba(76,29,149,0.12) !important; }

/* --- SIDEBAR WIDGETS --- */
.sidebar-widget {
  background: var(--bg-card) !important;
  border: 1px solid var(--border-light) !important;
  border-radius: var(--radius-lg) !important;
  padding: 24px !important;
}
.sidebar-widget__title {
  font-size: 16px !important; font-weight: 700 !important;
  color: var(--text-heading) !important;
  margin-bottom: 16px !important;
  padding-bottom: 12px !important;
  border-bottom: 1px solid var(--border-light) !important;
}

/* Trending List */
.trending-list {
  list-style: none !important; padding: 0 !important; margin: 0 !important;
}
.trending-item {
  display: flex !important; align-items: flex-start !important; gap: 12px !important;
  padding: 10px 0 !important;
}
.trending-item + .trending-item { border-top: 1px solid #F3F4F6 !important; }
.trending-rank {
  font-family: var(--font-mono) !important;
  font-size: 14px !important; font-weight: 700 !important;
  width: 24px !important; height: 24px !important;
  display: flex !important; align-items: center !important; justify-content: center !important;
  border-radius: 6px !important; flex-shrink: 0 !important;
  color: var(--text-muted) !important; background: #F3F4F6 !important;
}
.rank-1 { background: #FEF3C7 !important; color: #92400E !important; }
.rank-2 { background: #E5E7EB !important; color: #374151 !important; }
.rank-3 { background: #FFEDD5 !important; color: #9A3412 !important; }
.trending-title {
  font-size: 14px !important; font-weight: 500 !important;
  color: var(--text-body) !important; line-height: 1.5 !important;
  display: -webkit-box !important; -webkit-line-clamp: 2 !important;
  -webkit-box-orient: vertical !important; overflow: hidden !important;
  transition: color 0.15s !important;
}
.trending-title:hover { color: var(--brand-primary) !important; }

/* Sidebar CTA */
.sidebar-cta {
  background: linear-gradient(135deg, #F5F3FF 0%, #EDE9FE 100%) !important;
  border: 1px solid rgba(76,29,149,0.1) !important;
  text-align: center !important;
}
.sidebar-cta__icon { font-size: 28px !important; margin-bottom: 8px !important; }
.sidebar-cta__title {
  font-size: 18px !important; font-weight: 800 !important;
  color: var(--brand-primary) !important; margin-bottom: 8px !important;
}
.sidebar-cta__desc {
  font-size: 14px !important; color: var(--text-muted) !important;
  line-height: 1.6 !important; margin-bottom: 16px !important;
}
.sidebar-cta__perks {
  list-style: none !important; padding: 0 !important; margin: 0 0 20px !important;
  text-align: left !important;
}
.sidebar-cta__perks li {
  font-size: 13px !important; color: var(--text-body) !important;
  padding: 4px 0 !important;
}
.sidebar-cta__btn {
  display: block !important; width: 100% !important;
  padding: 12px !important; border-radius: 8px !important;
  background: var(--brand-primary) !important; color: #fff !important;
  font-size: 15px !important; font-weight: 700 !important;
  text-align: center !important;
  transition: all 0.2s var(--ease) !important;
}
.sidebar-cta__btn:hover {
  background: var(--brand-primary-hover) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(76,29,149,0.2) !important;
  color: #fff !important;
}

/* Sidebar Newsletter */
.sidebar-newsletter__desc {
  font-size: 13px !important; color: var(--text-muted) !important;
  line-height: 1.6 !important; margin-bottom: 12px !important;
}
.sidebar-newsletter__form {
  display: flex !important; gap: 8px !important;
}
.sidebar-newsletter__input {
  flex: 1 !important; padding: 10px 14px !important;
  border: 1px solid var(--border-light) !important;
  border-radius: 8px !important; font-size: 13px !important;
  font-family: var(--font-sans) !important;
  outline: none !important; transition: border-color 0.15s !important;
}
.sidebar-newsletter__input:focus { border-color: var(--brand-primary) !important; }
.sidebar-newsletter__btn {
  padding: 10px 16px !important; border: none !important;
  background: var(--text-heading) !important; color: #fff !important;
  border-radius: 8px !important; font-size: 13px !important;
  font-weight: 600 !important; cursor: pointer !important;
  font-family: var(--font-sans) !important;
  transition: all 0.15s !important; white-space: nowrap !important;
}
.sidebar-newsletter__btn:hover { background: var(--brand-primary) !important; }
.sidebar-newsletter__note {
  font-size: 11px !important; color: #9CA3AF !important; margin-top: 8px !important;
}

/* --- FOOTER --- */
.site-footer {
  background: #0F172A !important;
  margin-top: 80px !important;
  padding: 56px 24px 0 !important;
}
.footer-inner {
  max-width: 1200px !important; margin: 0 auto !important;
  display: flex !important; justify-content: space-between !important;
  padding-bottom: 40px !important;
  border-bottom: 1px solid rgba(255,255,255,0.08) !important;
}
.footer-logo {
  font-size: 18px !important; font-weight: 800 !important;
  color: #fff !important; margin-bottom: 8px !important;
}
.footer-tagline {
  font-size: 14px !important; color: rgba(255,255,255,0.5) !important;
  max-width: 280px !important; line-height: 1.6 !important;
}
.footer-links { display: flex !important; gap: 56px !important; }
.footer-col { display: flex !important; flex-direction: column !important; gap: 10px !important; }
.footer-col__title {
  font-size: 12px !important; font-weight: 600 !important;
  letter-spacing: 0.08em !important; text-transform: uppercase !important;
  color: rgba(255,255,255,0.4) !important; margin-bottom: 4px !important;
}
.footer-col a {
  font-size: 14px !important; color: rgba(255,255,255,0.6) !important;
  transition: color 0.15s !important;
}
.footer-col a:hover { color: #fff !important; }
.footer-bottom {
  max-width: 1200px !important; margin: 0 auto !important;
  padding: 20px 0 !important; text-align: center !important;
  font-size: 12px !important; color: rgba(255,255,255,0.3) !important;
}

/* --- SEARCH OVERLAY --- */
.search-overlay {
  position: fixed !important; inset: 0 !important;
  background: rgba(0,0,0,0.6) !important;
  backdrop-filter: blur(8px) !important;
  z-index: 200 !important;
  display: flex !important; align-items: flex-start !important; justify-content: center !important;
  padding-top: 20vh !important;
  opacity: 0 !important; visibility: hidden !important;
  transition: opacity 0.2s, visibility 0.2s !important;
}
.search-overlay.active { opacity: 1 !important; visibility: visible !important; }
.search-overlay__close {
  position: absolute !important; top: 24px !important; right: 24px !important;
  width: 40px !important; height: 40px !important;
  border: none !important; background: rgba(255,255,255,0.1) !important;
  color: #fff !important; font-size: 24px !important;
  border-radius: 50% !important; cursor: pointer !important;
}
.search-overlay__inner { width: 100% !important; max-width: 560px !important; padding: 0 24px !important; }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .header-nav { display: none !important; }
  .header-cta { display: none !important; }
  .header-menu-btn { display: flex !important; align-items: center !important; justify-content: center !important; }
  .layout-grid { grid-template-columns: 1fr !important; gap: 32px !important; }
  .layout-sidebar { position: static !important; }
  .hero-card { padding: 32px 28px !important; }
  .hero-card__title { font-size: 24px !important; }
}
@media (max-width: 640px) {
  .site-main { padding: 20px 16px !important; }
  .hero-card { padding: 28px 20px !important; }
  .hero-card__title { font-size: 22px !important; }
  .hero-card__excerpt { font-size: 14px !important; display: none !important; }
  .feed-card__excerpt { display: none !important; }
  .feed-card__number { display: none !important; }
  .feed-card__title { font-size: 16px !important; }
  .footer-inner { flex-direction: column !important; gap: 32px !important; }
  .footer-links { flex-direction: column !important; gap: 24px !important; }
}

/* --- HIDE OLD ASTRA ELEMENTS --- */
.nav, .hero, .hero-slider, .tabs,
.section:not(.article-layout .section),
.newsletter, .cta-banner,
.footer:not(.site-footer),
.ambient {
  display: none !important;
}