/* ====================================================
   三番云机场 sanfanyunjc.org
   色系：鼠尾草绿灰 + 米白贝色（参考图三色板）
   ==================================================== */

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

/* ── CSS Variables ── */
:root {
  --bg:          #F7F5F1;      /* 贝色背景 */
  --bg-card:     #FAFAF8;     /* 卡片白 */
  --bg-dark:     #E8E6E0;     /* 浅灰底色 */
  --primary:     #8BA888;      /* 鼠尾草青绿 */
  --primary-dark:#6E9469;      /* 深鼠尾草 */
  --accent:      #9EA8A0;      /* 青白灰 */
  --cement:      #B3B3B9;      /* 水泥墙灰 */
  --navy:        #2D3330;      /* 深鼠色文字 */
  --text:        #3A3D3C;      /* 正文文字 */
  --text-muted:  #6B7B72;      /* 次要文字 */
  --border:      #DDE0DA;      /* 边线 */
  --highlight:   #A5BBA3;      /* 高亮绿 */
  --gold:        #C9A96E;      /* 金色点缀 */
  --shadow-sm:   0 2px 8px rgba(45,51,48,0.06);
  --shadow-md:   0 6px 24px rgba(45,51,48,0.10);
  --shadow-lg:   0 16px 48px rgba(45,51,48,0.14);
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --transition:  all 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family: 'Noto Sans SC','Inter',system-ui,sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; }

/* ── Canvas ── */
#bg-canvas {
  position:fixed; top:0; left:0;
  width:100%; height:100%;
  pointer-events:none;
  z-index:0;
  opacity:0.4;
}

/* ── Container ── */
.container { max-width:1200px; margin:0 auto; padding:0 24px; position:relative; z-index:1; }

/* ── Buttons ── */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 28px;
  border-radius:var(--radius-sm);
  font-size:14px; font-weight:600;
  cursor:pointer; border:none;
  transition:var(--transition);
}
.btn-primary {
  background: var(--primary);
  color:#fff;
}
.btn-primary:hover { background:var(--primary-dark); transform:translateY(-1px); box-shadow:var(--shadow-md); }

.btn-outline {
  background:transparent;
  border:1.5px solid var(--primary);
  color:var(--primary);
}
.btn-outline:hover { background:var(--primary); color:#fff; }

.btn-ghost {
  background:rgba(139,168,136,0.12);
  color:var(--primary-dark);
}
.btn-ghost:hover { background:rgba(139,168,136,0.22); }

/* ── NAVBAR ── */
.navbar {
  position:sticky; top:0; left:0; right:0; z-index:900;
  background:rgba(247,245,241,0.92);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.navbar .container {
  display:flex; align-items:center; gap:0;
  height:64px;
}
.logo {
  display:flex; align-items:center; gap:10px;
  font-weight:700; font-size:17px;
  color:var(--navy);
  flex-shrink:0;
}
.logo-mark {
  width:36px; height:36px;
  background:var(--primary);
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  font-weight:900; font-size:16px; color:#fff;
}

.nav-main {
  display:flex; align-items:center; gap:4px;
  margin-left:36px;
  flex:1;
}
.nav-item {
  position:relative;
}
.nav-link {
  display:flex; align-items:center; gap:4px;
  padding:8px 14px;
  font-size:14px; font-weight:500;
  color:var(--text);
  border-radius:6px;
  transition:var(--transition);
  cursor:pointer;
}
.nav-link:hover, .nav-link.active { color:var(--primary); background:rgba(139,168,136,0.1); }
.nav-chevron {
  font-size:10px;
  transition:transform 0.22s;
}
.nav-item:hover .nav-chevron { transform:rotate(180deg); }

/* Dropdown */
.nav-dropdown {
  position:absolute; top:calc(100% + 4px); left:0;
  min-width:200px;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-lg);
  padding:8px;
  opacity:0; pointer-events:none;
  transform:translateY(-6px);
  transition:var(--transition);
  z-index:1000;
}
.nav-item:hover .nav-dropdown {
  opacity:1; pointer-events:all; transform:translateY(0);
}
.dropdown-item {
  display:block; padding:9px 14px;
  font-size:13px; color:var(--text);
  border-radius:6px;
  transition:var(--transition);
}
.dropdown-item:hover { background:rgba(139,168,136,0.1); color:var(--primary); }
.dropdown-divider { height:1px; background:var(--border); margin:6px 0; }

.nav-actions {
  display:flex; align-items:center; gap:10px;
  margin-left:auto;
}

/* Search Icon Button */
.search-btn {
  width:38px; height:38px;
  border:none; background:transparent;
  cursor:pointer;
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  color:var(--text-muted);
  transition:var(--transition);
  font-size:17px;
}
.search-btn:hover { color:var(--primary); background:rgba(139,168,136,0.1); }

/* ── SEARCH MODAL ── */
.search-overlay {
  position:fixed; inset:0; z-index:9999;
  background:rgba(45,51,48,0.45);
  backdrop-filter:blur(4px);
  display:flex; align-items:flex-start; justify-content:center;
  padding-top:80px;
  opacity:0; pointer-events:none;
  transition:opacity 0.22s;
}
.search-overlay.open { opacity:1; pointer-events:all; }
.search-modal {
  width:min(680px, 90vw);
  background:var(--bg-card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
  transform:translateY(-16px) scale(0.97);
  transition:var(--transition);
}
.search-overlay.open .search-modal { transform:translateY(0) scale(1); }

.search-input-row {
  display:flex; align-items:center;
  padding:18px 20px;
  border-bottom:1px solid var(--border);
  gap:12px;
}
.search-input-row input {
  flex:1; border:none; outline:none;
  font-size:16px; color:var(--navy);
  background:transparent;
  font-family:inherit;
}
.search-input-row input::placeholder { color:var(--cement); }
.search-close-btn {
  border:none; background:transparent;
  cursor:pointer; font-size:20px;
  color:var(--cement); line-height:1;
}

.search-panel { padding:20px 22px; }
.search-label {
  font-size:11px; font-weight:700; letter-spacing:0.08em;
  color:var(--cement); text-transform:uppercase;
  margin-bottom:12px;
}
.hot-tags {
  display:flex; flex-wrap:wrap; gap:8px;
}
.hot-tag {
  padding:6px 14px;
  background:var(--bg-dark);
  border-radius:20px;
  font-size:13px; color:var(--text);
  cursor:pointer;
  transition:var(--transition);
  border:1px solid var(--border);
}
.hot-tag:hover { background:var(--primary); color:#fff; border-color:var(--primary); }

/* ── HERO ── */
.hero {
  min-height:calc(100vh - 64px);
  display:flex; align-items:center;
  position:relative;
  overflow:hidden;
}
.hero-inner {
  display:grid;
  grid-template-columns:1fr auto;
  gap:60px;
  align-items:center;
  padding:80px 0 60px;
  width:100%;
}
.hero-badge {
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 14px;
  background:rgba(139,168,136,0.12);
  border:1px solid rgba(139,168,136,0.3);
  border-radius:20px;
  font-size:12px; font-weight:600; letter-spacing:0.04em;
  color:var(--primary-dark);
  margin-bottom:20px;
}
.hero-badge-dot {
  width:6px; height:6px;
  border-radius:50%;
  background:var(--primary);
  animation:pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:0.5; transform:scale(1.4); }
}

.hero-title {
  font-size:clamp(52px,6vw,88px);
  font-weight:900;
  line-height:1.05;
  color:var(--navy);
  letter-spacing:-0.03em;
  margin-bottom:6px;
}
.hero-title .brand-name {
  color:var(--primary);
  display:block;
}
.hero-subtitle-line {
  display:flex; align-items:center; gap:16px;
  margin:12px 0 28px;
}
.hero-subtitle-line::before,
.hero-subtitle-line::after {
  content:'';
  flex:1; height:1px;
  background:var(--border);
}
.hero-sub-text {
  font-size:13px; letter-spacing:0.16em;
  color:var(--text-muted); font-weight:500; white-space:nowrap;
}
.hero-nav-links {
  display:flex; flex-direction:column; gap:10px;
  margin-bottom:36px;
}
.hero-nav-link {
  display:flex; align-items:center; gap:10px;
  font-size:13px; letter-spacing:0.08em;
  color:var(--text-muted);
  font-weight:500;
  text-transform:uppercase;
  transition:var(--transition);
}
.hero-nav-link .arrow { font-size:15px; color:var(--primary); }
.hero-nav-link:hover { color:var(--primary); gap:14px; }

.hero-cta-group {
  display:flex; align-items:center; gap:14px;
}

/* Hero SVG Illustration */
.hero-illustration {
  width:300px;
  flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
}
.hero-svg-wrap {
  width:260px; height:260px;
  position:relative;
}
.hero-svg-wrap svg { width:100%; height:100%; }

/* Floating ticker */
.hero-ticker {
  position:absolute;
  bottom:20px; right:0;
  background:var(--navy);
  color:#fff;
  padding:8px 16px;
  font-size:12px; font-weight:600;
  border-radius:6px;
  white-space:nowrap;
  box-shadow:var(--shadow-md);
}

/* ── SEARCH BAR (below hero) ── */
.search-bar-section {
  background:var(--bg-dark);
  padding:32px 0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.search-bar-inner {
  display:flex; gap:12px;
  max-width:760px;
  margin:0 auto;
}
.search-input-box {
  flex:1;
  display:flex; align-items:center;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:8px;
  padding:14px 18px;
  gap:10px;
}
.search-input-box input {
  flex:1; border:none; outline:none;
  font-size:15px; color:var(--navy);
  background:transparent; font-family:inherit;
}
.search-input-box input::placeholder { color:var(--cement); }
.search-go-btn {
  display:flex; align-items:center; gap:8px;
  padding:14px 24px;
  background:var(--navy);
  color:#fff; border:none; border-radius:8px;
  font-size:14px; font-weight:600;
  cursor:pointer; transition:var(--transition);
}
.search-go-btn:hover { background:var(--primary); }

/* ── STATS BAR ── */
.stats-bar {
  padding:56px 0;
  text-align:center;
}
.stats-grid {
  display:flex; justify-content:center; gap:80px;
  flex-wrap:wrap;
}
.stat-item {}
.stat-num {
  font-size:40px; font-weight:900;
  color:var(--navy); letter-spacing:-0.04em;
  font-family:'Inter',sans-serif;
}
.stat-num span { color:var(--primary); }
.stat-label {
  font-size:13px; color:var(--text-muted);
  font-weight:500; margin-top:4px;
}

/* ── SECTION HEADER ── */
.section-hd {
  text-align:center;
  margin-bottom:52px;
}
.section-eyebrow {
  display:inline-block;
  font-size:11px; font-weight:700; letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--primary);
  background:rgba(139,168,136,0.1);
  padding:5px 14px;
  border-radius:20px;
  margin-bottom:14px;
}
.section-title {
  font-size:clamp(28px,3.5vw,40px);
  font-weight:800;
  color:var(--navy);
  letter-spacing:-0.02em;
  line-height:1.2;
}
.section-desc {
  font-size:15px; color:var(--text-muted);
  margin-top:12px; max-width:560px; margin-left:auto; margin-right:auto;
}

/* ── TECH ARCHITECTURE ── */
.tech-section { padding:80px 0; }
.tech-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.tech-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:28px 24px;
  transition:var(--transition);
}
.tech-card:hover {
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--primary);
}
.tech-icon {
  font-size:32px; margin-bottom:16px; display:block;
}
.tech-name {
  font-size:16px; font-weight:700; color:var(--navy);
  margin-bottom:8px;
}
.tech-desc {
  font-size:13px; color:var(--text-muted); line-height:1.6;
}

/* ── NODES SECTION ── */
.nodes-section {
  padding:80px 0;
  background:var(--bg-dark);
}
.nodes-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:4px;
}
.node-region-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:28px;
  transition:var(--transition);
}
.node-region-card:hover { box-shadow:var(--shadow-md); transform:translateY(-3px); }
.region-name {
  font-size:16px; font-weight:700; color:var(--primary);
  margin-bottom:16px;
}
.node-list { display:flex; flex-direction:column; gap:8px; }
.node-list-item {
  display:flex; align-items:center; gap:8px;
  font-size:13px; color:var(--text);
}
.node-arrow { color:var(--primary); font-size:11px; font-weight:700; }

/* ── PRICING ── */
.pricing-section { padding:80px 0; }
.pricing-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
}
.price-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:var(--transition);
  position:relative;
}
.price-card:hover { box-shadow:var(--shadow-md); transform:translateY(-4px); }
.price-card.featured {
  border-color:var(--primary);
  box-shadow:0 0 0 2px var(--primary);
}
.price-badge {
  position:absolute; top:0; left:50%; transform:translateX(-50%);
  background:var(--primary);
  color:#fff; font-size:11px; font-weight:700;
  padding:3px 14px; border-radius:0 0 8px 8px;
  letter-spacing:0.04em;
}
.price-header {
  padding:32px 28px 20px;
  text-align:center;
}
.price-plan-name {
  font-size:16px; font-weight:700; color:var(--navy);
  margin-bottom:12px;
}
.price-featured-name { color:var(--primary); }
.price-num {
  display:flex; align-items:baseline; gap:4px;
  justify-content:center;
}
.price-currency { font-size:20px; font-weight:700; color:var(--navy); }
.price-amount {
  font-size:54px; font-weight:900; color:var(--navy);
  letter-spacing:-0.04em; font-family:'Inter',sans-serif; line-height:1;
}
.price-featured-amount { color:var(--primary); }
.price-period { font-size:14px; color:var(--text-muted); }
.price-body { padding:0 28px 28px; }
.price-features { display:flex; flex-direction:column; gap:11px; }
.price-feat {
  display:flex; align-items:center; gap:10px;
  font-size:13px; color:var(--text);
}
.feat-check {
  width:18px; height:18px;
  border-radius:50%;
  background:rgba(139,168,136,0.15);
  color:var(--primary);
  display:flex; align-items:center; justify-content:center;
  font-size:10px; font-weight:700; flex-shrink:0;
}
.feat-check.featured-check {
  background:var(--primary);
  color:#fff;
}
.price-footer { padding:0 28px 28px; }
.btn-buy {
  display:block; width:100%;
  padding:14px;
  background:var(--bg-dark);
  color:var(--navy);
  text-align:center;
  border-radius:8px;
  font-weight:600; font-size:14px;
  border:1.5px solid var(--border);
  transition:var(--transition);
  cursor:pointer;
}
.btn-buy:hover { background:var(--primary); color:#fff; border-color:var(--primary); }
.btn-buy.featured-buy {
  background:var(--primary);
  color:#fff; border-color:var(--primary);
}
.btn-buy.featured-buy:hover { background:var(--primary-dark); }

/* ── TUTORIALS ── */
.tutorials-section { padding:80px 0; background:var(--bg-dark); }
.tutorials-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.tutorial-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:28px 22px;
  transition:var(--transition);
  cursor:pointer;
}
.tutorial-card:hover {
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--primary);
}
.tutorial-platform {
  font-size:11px; font-weight:700; letter-spacing:0.1em;
  text-transform:uppercase; color:var(--primary);
  background:rgba(139,168,136,0.1);
  padding:4px 10px; border-radius:12px;
  display:inline-block; margin-bottom:14px;
}
.tutorial-title {
  font-size:15px; font-weight:700; color:var(--navy);
  margin-bottom:8px;
}
.tutorial-steps {
  display:flex; flex-direction:column; gap:6px;
}
.tutorial-step {
  display:flex; align-items:flex-start; gap:8px;
  font-size:12px; color:var(--text-muted);
}
.step-num {
  min-width:18px; height:18px;
  background:var(--bg-dark);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:10px; font-weight:700; color:var(--primary-dark);
  flex-shrink:0;
}
.tutorial-link {
  display:flex; align-items:center; gap:6px;
  margin-top:16px;
  font-size:13px; font-weight:600; color:var(--primary);
  transition:var(--transition);
}
.tutorial-link:hover { gap:10px; }

/* ── ARTICLES ── */
.articles-section { padding:80px 0; }
.articles-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.article-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:var(--transition);
}
.article-card:hover {
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
  border-color:var(--primary);
}
.article-card-img {
  height:140px;
  background:linear-gradient(135deg, rgba(139,168,136,0.12) 0%, rgba(158,168,160,0.18) 100%);
  display:flex; align-items:center; justify-content:center;
  font-size:40px;
}
.article-card-body { padding:20px; }
.article-tag-badge {
  display:inline-block;
  font-size:10px; font-weight:700; letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--primary);
  background:rgba(139,168,136,0.1);
  padding:3px 10px; border-radius:10px;
  margin-bottom:10px;
}
.article-card-title {
  font-size:15px; font-weight:700; color:var(--navy);
  margin-bottom:8px; line-height:1.4;
}
.article-card-excerpt {
  font-size:12px; color:var(--text-muted); line-height:1.6;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.article-card-meta {
  display:flex; align-items:center; justify-content:space-between;
  margin-top:14px; padding-top:12px; border-top:1px solid var(--border);
}
.article-date { font-size:11px; color:var(--cement); }
.article-read-more {
  font-size:12px; font-weight:600; color:var(--primary);
  display:flex; align-items:center; gap:4px;
}

/* ── REVIEWS ── */
.reviews-section { padding:80px 0; background:var(--bg-dark); }
.reviews-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.review-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:24px;
  transition:var(--transition);
}
.review-card:hover { box-shadow:var(--shadow-sm); }
.review-stars { color:var(--gold); font-size:14px; margin-bottom:12px; }
.review-text { font-size:13px; color:var(--text); line-height:1.7; }
.review-author {
  margin-top:14px; padding-top:12px; border-top:1px solid var(--border);
  font-size:12px; font-weight:700; color:var(--text-muted);
}
.review-author span { color:var(--primary); }

/* ── FAQ ── */
.faq-section { padding:80px 0; }
.faq-container { max-width:760px; margin:0 auto; }
.faq-item {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item.open { border-color:var(--primary); }
.faq-q {
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 22px;
  cursor:pointer;
  gap:12px;
}
.faq-q-text { font-size:14px; font-weight:600; color:var(--navy); }
.faq-toggle {
  width:28px; height:28px; flex-shrink:0;
  background:var(--bg-dark); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:16px; font-weight:300; color:var(--primary);
  transition:transform 0.22s;
}
.faq-item.open .faq-toggle { transform:rotate(45deg); background:var(--primary); color:#fff; }
.faq-a {
  padding:0 22px;
  max-height:0; overflow:hidden;
  font-size:13px; color:var(--text-muted); line-height:1.7;
  transition:max-height 0.35s ease, padding 0.2s;
}
.faq-item.open .faq-a { max-height:300px; padding:0 22px 18px; }

/* ── FOOTER ── */
.footer {
  background:var(--navy);
  color:rgba(255,255,255,0.8);
  padding:64px 0 0;
}
.footer-grid {
  display:grid;
  grid-template-columns:1.8fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo { color:#fff; margin-bottom:14px; display:flex; }
.footer-brand .logo-mark { background:var(--primary); }
.footer-desc { font-size:13px; line-height:1.7; color:rgba(255,255,255,0.55); }
.footer-col-title {
  font-size:12px; font-weight:700; letter-spacing:0.1em;
  text-transform:uppercase; color:rgba(255,255,255,0.9);
  margin-bottom:16px;
}
.footer-links { display:flex; flex-direction:column; gap:9px; }
.footer-links a {
  font-size:13px; color:rgba(255,255,255,0.55);
  transition:var(--transition);
}
.footer-links a:hover { color:var(--primary); }
.footer-bottom {
  border-top:1px solid rgba(255,255,255,0.1);
  padding:18px 0;
  display:flex; align-items:center; justify-content:space-between;
  font-size:12px; color:rgba(255,255,255,0.35);
}
.footer-bottom-links { display:flex; gap:20px; }
.footer-bottom-links a { color:rgba(255,255,255,0.35); transition:var(--transition); }
.footer-bottom-links a:hover { color:var(--primary); }

/* ── FLOATING CTA ── */
.floating-cta {
  position:fixed; bottom:28px; right:28px; z-index:800;
  display:flex; align-items:center; gap:8px;
  background:var(--primary);
  color:#fff; padding:13px 22px;
  border-radius:40px;
  font-size:13px; font-weight:700;
  box-shadow:var(--shadow-lg);
  transition:var(--transition);
}
.floating-cta:hover { background:var(--primary-dark); transform:translateY(-2px); }
.floating-cta::before {
  content:'';
  width:8px; height:8px; border-radius:50%;
  background:#fff; opacity:0.8;
  animation:pulse-dot 2s infinite;
}

/* ── ARTICLE PAGE ── */
.article-page { padding:48px 0 80px; }
.breadcrumb {
  display:flex; align-items:center; gap:8px;
  font-size:13px; color:var(--text-muted);
  margin-bottom:32px;
}
.breadcrumb a { color:var(--primary); }
.breadcrumb span { color:var(--cement); }
.article-wrapper {
  display:grid;
  grid-template-columns:1fr 300px;
  gap:40px;
  align-items:start;
}
.article-main { min-width:0; }
.article-hd { margin-bottom:28px; padding-bottom:24px; border-bottom:1px solid var(--border); }
.article-tag-lbl {
  display:inline-flex; align-items:center;
  padding:4px 12px; border-radius:12px;
  background:rgba(139,168,136,0.12);
  font-size:11px; font-weight:700; letter-spacing:0.08em;
  color:var(--primary); text-transform:uppercase;
  margin-bottom:14px;
}
.article-h1 {
  font-size:clamp(22px,2.8vw,32px);
  font-weight:800; color:var(--navy);
  line-height:1.3; margin-bottom:14px;
}
.article-meta {
  display:flex; gap:20px; flex-wrap:wrap;
  font-size:12px; color:var(--cement);
}
.article-body h2 {
  font-size:20px; font-weight:700; color:var(--navy);
  margin:32px 0 12px; padding-left:12px;
  border-left:3px solid var(--primary);
}
.article-body p, .article-body .section-p {
  font-size:14px; color:var(--text);
  line-height:1.85; margin-bottom:14px;
}
.article-body ul, .article-body ol {
  padding-left:20px;
  font-size:14px; color:var(--text); line-height:1.85;
  margin-bottom:14px;
}
.article-body li { margin-bottom:6px; }
.article-cta-box {
  background:linear-gradient(135deg,rgba(139,168,136,0.1),rgba(158,168,160,0.12));
  border:1px solid rgba(139,168,136,0.3);
  border-radius:var(--radius-md);
  padding:24px 28px;
  margin:28px 0;
}
.article-cta-box h4 { font-size:16px; font-weight:700; color:var(--navy); margin-bottom:6px; }
.article-cta-box p { font-size:13px; color:var(--text-muted); margin-bottom:14px; }

/* Sidebar */
.sidebar { position:sticky; top:90px; }
.sidebar-widget {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:22px;
  margin-bottom:20px;
}
.sidebar-widget-title {
  font-size:13px; font-weight:700; color:var(--navy);
  letter-spacing:0.04em; margin-bottom:14px;
  padding-bottom:10px; border-bottom:1px solid var(--border);
}
.sidebar-widget ul { display:flex; flex-direction:column; gap:9px; }
.sidebar-widget li a {
  font-size:12px; color:var(--text-muted);
  transition:var(--transition);
}
.sidebar-widget li a:hover { color:var(--primary); }

/* ── Misc ── */
.section-p { margin-bottom:14px; }
.text-primary { color:var(--primary); }

/* ── Responsive ── */
@media (max-width:1024px) {
  .tech-grid { grid-template-columns:repeat(2,1fr); }
  .tutorials-grid { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1.4fr 1fr 1fr; }
}
@media (max-width:768px) {
  .hero-inner { grid-template-columns:1fr; }
  .hero-illustration { display:none; }
  .pricing-grid, .nodes-grid, .reviews-grid { grid-template-columns:1fr; }
  .articles-grid { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .article-wrapper { grid-template-columns:1fr; }
  .sidebar { display:none; }
  .stats-grid { gap:40px; }
}
@media (max-width:480px) {
  .articles-grid { grid-template-columns:1fr; }
  .tutorials-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .nav-main { display:none; }
}