/* WPS Office Landing Site - Digital Canvas / Studio Light Theme */
:root {
  --canvas: #fafbfc;
  --surface: #ffffff;
  --ink: #1e293b;
  --muted: #64748b;
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --coral: #f97316;
  --coral-light: #fb923c;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(13, 148, 136, 0.08);
  --shadow-lg: 0 12px 48px rgba(13, 148, 136, 0.12);
  --nav-h: 72px;
  --max-w: 1280px;
  --radius: 16px;
  --radius-sm: 10px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--canvas);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }

/* Container */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.topnav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}

.brand svg { width: 36px; height: 36px; }

.navlist {
  display: flex;
  gap: 8px;
}

.navlink {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  padding: 10px 18px;
  border-radius: 999px;
  transition: all 0.25s ease;
}

.navlink:hover {
  color: var(--teal);
  background: rgba(13, 148, 136, 0.08);
}

.navlink.on {
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.25);
}

/* Hero Section */
.hero {
  padding: calc(var(--nav-h) + 60px) 0 80px;
  background: linear-gradient(160deg, #f0fdfa 0%, var(--canvas) 50%, #fff7ed 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content { padding-right: 20px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(20, 184, 166, 0.1));
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 20px;
}

.hero-badge svg { width: 16px; height: 16px; }

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-title span {
  background: linear-gradient(135deg, var(--teal), var(--coral));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 32px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.hero-card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(20, 184, 166, 0.15));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card-icon svg { width: 24px; height: 24px; color: var(--teal); }

.hero-card-title {
  font-size: 18px;
  font-weight: 700;
}

.hero-card-sub {
  font-size: 13px;
  color: var(--muted);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

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

.hero-stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--teal);
}

.hero-stat-lbl {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* Floating shapes */
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.6;
}

.shape-1 {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--teal-light), var(--teal));
  top: 20%;
  right: -20px;
  animation: float 6s ease-in-out infinite;
}

.shape-2 {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--coral-light), var(--coral));
  bottom: 30%;
  left: -15px;
  animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

/* Sections */
.sec {
  padding: 80px 0;
}

.sec-alt {
  background: linear-gradient(180deg, var(--surface) 0%, var(--canvas) 100%);
}

.sec-head {
  text-align: center;
  margin-bottom: 48px;
}

.sec-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin-bottom: 12px;
}

.sec-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.sec-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Feature Grid */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.feat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--teal), var(--coral));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.feat-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(20, 184, 166, 0.15));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feat-icon svg { width: 28px; height: 28px; color: var(--teal); }

.feat-name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feat-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.65;
}

/* Platform Section */
.plat-sec {
  background: var(--surface);
}

.plat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.plat-card {
  background: var(--canvas);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.plat-card:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow);
}

.plat-card.featured {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.05), rgba(20, 184, 166, 0.08));
  border-color: var(--teal);
}

.plat-ico {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--surface);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.plat-ico svg { width: 32px; height: 32px; }

.plat-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.plat-ver {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
}

/* Stats Banner */
.stats-banner {
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  padding: 48px 0;
  position: relative;
  overflow: hidden;
}

.stats-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1));
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item { color: #fff; }

.stat-num {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 8px;
}

.stat-lbl {
  font-size: 14px;
  opacity: 0.9;
}

/* Deep Features */
.deep-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.deep-row:last-child { margin-bottom: 0; }

.deep-row.rev { direction: rtl; }

.deep-row.rev > * { direction: ltr; }

.deep-info { max-width: 480px; }

.deep-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--coral);
  margin-bottom: 16px;
}

.deep-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.deep-desc {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 24px;
  line-height: 1.75;
}

.deep-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.deep-list-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
}

.deep-list-item svg {
  width: 20px;
  height: 20px;
  color: var(--teal);
  flex-shrink: 0;
  margin-top: 2px;
}

.deep-visual {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
  position: relative;
}

.deep-visual::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  border: 2px dashed var(--border);
  border-radius: calc(var(--radius) - 20px);
  pointer-events: none;
}

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

.rev-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  position: relative;
}

.rev-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 60px;
  font-weight: 700;
  color: rgba(13, 148, 136, 0.1);
  line-height: 1;
}

.rev-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.rev-avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--teal), var(--coral));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
}

.rev-info { flex: 1; }

.rev-name {
  font-size: 15px;
  font-weight: 700;
}

.rev-role {
  font-size: 12px;
  color: var(--muted);
}

.rev-stars {
  display: flex;
  gap: 2px;
  margin-bottom: 12px;
}

.rev-stars svg {
  width: 16px;
  height: 16px;
  color: #fbbf24;
}

.rev-text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* Comparison Table */
.cmp-wrap {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.cmp-table {
  width: 100%;
  border-collapse: collapse;
}

.cmp-table th,
.cmp-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.cmp-table th {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.05), rgba(20, 184, 166, 0.08));
  font-weight: 700;
  font-size: 14px;
}

.cmp-table td {
  font-size: 14px;
}

.cmp-table tr:last-child td { border-bottom: none; }

.cmp-table .hl {
  background: rgba(13, 148, 136, 0.08);
  font-weight: 600;
  color: var(--teal);
}

.cmp-table svg {
  width: 18px;
  height: 18px;
  display: inline-block;
  vertical-align: middle;
}

.cmp-table .check { color: var(--teal); }
.cmp-table .cross { color: #ef4444; }

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover { border-color: var(--teal); }

.faq-item.open {
  border-color: var(--teal);
  box-shadow: var(--shadow);
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
}

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--muted);
  transition: transform 0.3s ease;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--teal);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-a { max-height: 300px; }

.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  animation: pulse 4s ease-in-out infinite;
  pointer-events: none;
}

.cta-banner .btn {
  position: relative;
  z-index: 1;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.cta-title {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

/* Download Page Hero */
.dl-hero {
  padding: calc(var(--nav-h) + 60px) 0 80px;
  background: linear-gradient(160deg, #f0fdfa 0%, var(--canvas) 100%);
  position: relative;
}

.dl-hero-inner {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.dl-title {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: 16px;
}

.dl-sub {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 40px;
}

.dl-main {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  margin: 0 auto 40px;
  position: relative;
  overflow: hidden;
}

.dl-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

.dl-main-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(20, 184, 166, 0.15));
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.dl-main-icon svg { width: 36px; height: 36px; color: var(--teal); }

.dl-main-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.dl-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 24px;
}

.dl-meta-item {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.dl-meta-item svg { width: 16px; height: 16px; }

.dl-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

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

.dl-spec-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.dl-spec-val {
  font-size: 14px;
  font-weight: 600;
}

/* Other Platforms */
.other-plats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.op-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.op-card:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow);
}

.op-ico {
  width: 48px;
  height: 48px;
  background: var(--canvas);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.op-ico svg { width: 24px; height: 24px; }

.op-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.op-ver {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 16px;
}

/* Guide Steps */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.gstep {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 24px;
  text-align: center;
  position: relative;
}

.gstep::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -12px;
  width: 24px;
  height: 2px;
  background: var(--border);
}

.gstep:last-child::after { display: none; }

.gstep-num {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin: 0 auto 12px;
}

.gstep-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.gstep-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

/* Requirements */
.req-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.req-card {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 24px;
  border: 1px solid var(--border);
}

.req-ico {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(20, 184, 166, 0.15));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.req-ico svg { width: 20px; height: 20px; color: var(--teal); }

.req-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.req-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

/* Version Timeline */
.ver-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ver-item {
  display: flex;
  gap: 20px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 20px;
  border: 1px solid var(--border);
}

.ver-dot {
  width: 12px;
  height: 12px;
  background: var(--teal);
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
  position: relative;
}

.ver-dot::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 40px;
  background: var(--border);
}

.ver-item:last-child .ver-dot::before { display: none; }

.ver-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.1), rgba(20, 184, 166, 0.15));
  color: var(--teal);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.ver-date {
  font-size: 12px;
  color: var(--muted);
  margin-left: 8px;
}

.ver-body { flex: 1; }

.ver-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.ver-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

/* Security Banner */
.sec-banner {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.08), rgba(20, 184, 166, 0.12));
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid rgba(13, 148, 136, 0.2);
}

.sec-ico {
  width: 48px;
  height: 48px;
  background: var(--surface);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sec-ico svg { width: 24px; height: 24px; color: var(--teal); }

.sec-text {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.6;
}

/* Article Page */
.article-hero {
  padding: calc(var(--nav-h) + 60px) 0 60px;
  background: linear-gradient(160deg, #f0fdfa 0%, var(--canvas) 100%);
}

.article-hero-inner {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.article-title {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
}

.article-desc {
  font-size: 17px;
  color: var(--muted);
  margin-bottom: 24px;
}

.kw-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.kw {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  transition: all 0.2s ease;
}

.kw:hover {
  border-color: var(--teal);
  color: var(--teal);
}

/* Article Layout */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: 60px 0;
}

.article-body {
  max-width: 720px;
}

.article-section {
  margin-bottom: 48px;
}

.article-section:last-child { margin-bottom: 0; }

.article-section-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  position: relative;
}

.article-section-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background: var(--teal);
}

.article-text {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 16px;
}

.article-text:last-child { margin-bottom: 0; }

.article-list {
  margin: 16px 0;
  padding-left: 24px;
}

.article-list li {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 8px;
  position: relative;
}

.article-list li::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
}

/* Inline CTA */
.inline-cta {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.08), rgba(20, 184, 166, 0.12));
  border-radius: var(--radius-sm);
  padding: 24px;
  margin: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.inline-cta-text {
  font-size: 15px;
  font-weight: 600;
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}

.sbox {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}

.sbox:last-child { margin-bottom: 0; }

.sbox-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.sbox-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sbox-links a {
  font-size: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s ease;
}

.sbox-links a:last-child { border-bottom: none; }

.sbox-links a:hover { color: var(--teal); }

.sbox-links svg { width: 16px; height: 16px; }

.stoc {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stoc a {
  font-size: 13px;
  color: var(--muted);
  padding: 6px 0 6px 12px;
  border-left: 2px solid var(--border);
  transition: all 0.2s ease;
}

.stoc a:hover {
  color: var(--teal);
  border-color: var(--teal);
}

.sstat {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

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

.sstat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--teal);
}

.sstat-lbl {
  font-size: 12px;
  color: var(--muted);
}

.side-security {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.08), rgba(20, 184, 166, 0.12));
  padding: 16px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.side-security svg {
  width: 18px;
  height: 18px;
  color: var(--teal);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Footer */
.site-footer {
  background: var(--ink);
  padding: 48px 0;
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.footer-brand svg { width: 28px; height: 28px; }

.security-line {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
}

.footer-note {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  font-size: 15px;
}

.btn svg { width: 18px; height: 18px; }

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

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-teal {
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  color: #fff;
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
}

.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(13, 148, 136, 0.4);
}

.btn-coral {
  background: linear-gradient(135deg, var(--coral), var(--coral-light));
  color: #fff;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
}

.btn-coral:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(249, 115, 22, 0.4);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--ink);
}

.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.btn-white {
  background: #fff;
  color: var(--teal);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Spin Animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-content { padding-right: 0; text-align: center; }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .plat-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .deep-row { grid-template-columns: 1fr; gap: 40px; }
  .deep-row.rev { direction: ltr; }
  .rev-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; margin-top: 40px; }
  .guide-steps { grid-template-columns: repeat(3, 1fr); }
  .req-grid { grid-template-columns: repeat(2, 1fr); }
  .other-plats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .navlist { display: none; }
  .hero-title { font-size: 36px; }
  .feat-grid { grid-template-columns: 1fr; }
  .plat-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; gap: 20px; }
  .rev-grid { grid-template-columns: 1fr; }
  .guide-steps { grid-template-columns: 1fr; }
  .gstep::after { display: none; }
  .req-grid { grid-template-columns: 1fr; }
  .other-plats { grid-template-columns: 1fr; }
  .dl-specs { grid-template-columns: 1fr; }
  .inline-cta { flex-direction: column; text-align: center; }
}