/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: #1a1551;
  color: #dcd9ee;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== Layout ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(26,21,81,0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.3s;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 72px;
}
.logo {
  font-size: 20px; font-weight: 700; color: #fff;
  display: flex; align-items: center; gap: 10px;
}
.logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 16px; color: #fff;
}
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  color: #b8b4d8; font-size: 15px; font-weight: 500;
  transition: color 0.2s; position: relative;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a.active::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: linear-gradient(90deg, #7c3aed, #c026d3);
  border-radius: 2px;
}
.nav-cta {
  background: linear-gradient(135deg, #7c3aed, #c026d3) !important;
  color: #fff !important; padding: 8px 22px; border-radius: 10px;
  font-weight: 600 !important; box-shadow: 0 2px 12px rgba(124,58,237,0.3);
  transition: all 0.3s !important;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(124,58,237,0.45) !important;
}
.nav-cta::after { display: none !important; }
.menu-toggle {
  display: none; background: none; border: none; color: #fff;
  font-size: 28px; cursor: pointer; padding: 4px;
}

/* Mobile Nav */
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .nav-links {
    display: none; position: fixed; top: 72px; left: 0; width: 100%;
    background: rgba(26,21,81,0.97); flex-direction: column;
    padding: 24px; gap: 20px; border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links.open { display: flex; }
  .nav-cta { text-align: center; }
}

/* ===== Hero ===== */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(124,58,237,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 80%, rgba(192,38,211,0.08) 0%, transparent 50%);
}
.hero-tag {
  display: inline-block; padding: 6px 20px; border-radius: 20px;
  background: rgba(124,58,237,0.25); border: 1px solid rgba(124,58,237,0.4);
  font-size: 14px; color: #c4b5fd; margin-bottom: 28px; font-weight: 500;
}
.hero h1, .page-hero h1 {
  font-size: 46px; font-weight: 800; line-height: 1.3; letter-spacing: 0.5px; margin-bottom: 28px;
  color: #fff;
}
.page-hero h1 { font-size: 42px; }
.hero h1 .highlight, .page-hero h1 .highlight {
  background: linear-gradient(90deg, #a855f7, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p, .page-hero p {
  font-size: 17px; color: #9c98c0; max-width: 720px; margin: 0 auto 48px;
  line-height: 1.8;
}
.btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 12px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.3s;
}
.btn-primary {
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  color: #fff; box-shadow: 0 4px 20px rgba(124,58,237,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(124,58,237,0.5);
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: #d0d0e8; border: 1px solid rgba(255,255,255,0.12);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

/* ===== Sections ===== */
.section {
  padding: 90px 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(124,58,237,0.06) 0%, transparent 60%);
}
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-size: 34px; font-weight: 800; letter-spacing: 0.5px; color: #fff; margin-bottom: 16px;
}
.section-header p {
  font-size: 16px; color: #9c98c0; max-width: 600px; margin: 0 auto;
}

/* ===== Feature Cards ===== */
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.8), rgba(20,15,55,0.9));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 36px 28px;
  transition: all 0.3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,58,237,0.35);
  box-shadow: 0 8px 32px rgba(124,58,237,0.15);
}
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(192,38,211,0.15));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 26px;
}
.feature-icon svg, .feature-icon .feather {
  width: 28px; height: 28px; stroke: #a78bfa; stroke-width: 1.5;
  fill: none; stroke-linecap: round; stroke-linejoin: round;
}
.feature-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: #9c98c0; line-height: 1.7; }

@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* ===== Stats ===== */
.stats-section { padding: 70px 0; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  text-align: center;
}
.stat-item h3 {
  font-size: 42px; font-weight: 800;
  background: linear-gradient(90deg, #a855f7, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; margin-bottom: 8px;
}
.stat-item p { font-size: 15px; color: #9c98c0; }

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .stat-item h3 { font-size: 32px; }
}

/* ===== CTA ===== */
.cta-section {
  padding: 90px 0; text-align: center;
  background: radial-gradient(ellipse at 50% 50%, rgba(124,58,237,0.12) 0%, transparent 55%);
}
.cta-section h2 { font-size: 34px; font-weight: 800; letter-spacing: 0.5px; color: #fff; margin-bottom: 16px; }
.cta-section p { font-size: 16px; color: #9c98c0; margin-bottom: 36px; max-width: 550px; margin-left: auto; margin-right: auto; }

/* ===== About Page ===== */
.about-info-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  max-width: 700px; margin: 0 auto;
}
.about-card {
  background: linear-gradient(135deg, rgba(40,20,80,0.7), rgba(25,15,60,0.8));
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 16px; padding: 36px 28px; text-align: center;
}
.about-card .icon {
  font-size: 36px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
}
.about-card .icon svg, .about-card .icon .feather {
  width: 36px; height: 36px; stroke: #a78bfa; stroke-width: 1.5;
  fill: none; stroke-linecap: round; stroke-linejoin: round;
}
.about-card h3 { font-size: 28px; font-weight: 800; color: #fff; margin-bottom: 6px; }
.about-card p { font-size: 14px; color: #9c98c0; }

.about-subtitle {
  text-align: center; font-size: 20px; color: #a855f7;
  font-weight: 600; margin-bottom: 20px;
}
.about-text {
  max-width: 800px; margin: 0 auto 60px; text-align: center;
  font-size: 16px; color: #b8b4d8; line-height: 2;
}

/* Values */
.values-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  margin-top: 48px;
}
.value-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.8), rgba(20,15,55,0.9));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 32px 28px;
}
.value-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.value-card p { font-size: 14px; color: #9c98c0; line-height: 1.7; }

@media (max-width: 600px) {
  .about-info-grid, .values-grid { grid-template-columns: 1fr; }
}

/* ===== Cases Page ===== */
.case-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.8), rgba(20,15,55,0.9));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 36px 32px; margin-bottom: 24px;
}
.case-tag {
  display: inline-block; padding: 4px 14px; border-radius: 8px;
  background: rgba(59,130,246,0.15); color: #60a5fa;
  font-size: 13px; font-weight: 600; margin-bottom: 12px;
}
.case-card h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.case-detail { margin-bottom: 12px; }
.case-detail h4 { font-size: 14px; color: #a855f7; font-weight: 600; margin-bottom: 4px; }
.case-detail p { font-size: 14px; color: #9c98c0; line-height: 1.7; }

/* Partners */
.partners-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 48px;
}
.partner-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px; padding: 20px; text-align: center;
  font-size: 14px; color: #b8b4d8; font-weight: 500;
  transition: all 0.3s;
}
.partner-item:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(124,58,237,0.3);
}

@media (max-width: 768px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  max-width: 800px; margin: 0 auto 60px;
}
.contact-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.8), rgba(20,15,55,0.9));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 28px 24px;
}
.contact-card .icon {
  font-size: 28px; margin-bottom: 14px;
  display: flex; align-items: center; justify-content: flex-start;
}
.contact-card .icon svg, .contact-card .icon .feather {
  width: 26px; height: 26px; stroke: #a78bfa; stroke-width: 1.5;
  fill: none; stroke-linecap: round; stroke-linejoin: round;
}
.contact-card h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.contact-card .value { font-size: 18px; color: #d0d0f0; font-weight: 600; margin-bottom: 4px; }
.contact-card .note { font-size: 13px; color: #8080a8; }

.contact-card-full {
  grid-column: 1 / -1;
}

@media (max-width: 600px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* Form */
.form-section {
  max-width: 700px; margin: 0 auto;
  background: linear-gradient(135deg, rgba(30,20,70,0.6), rgba(20,15,55,0.7));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 20px; padding: 48px 40px;
}
.form-section h3 {
  font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 8px;
  text-align: center;
}
.form-section .form-desc {
  font-size: 14px; color: #9c98c0; margin-bottom: 32px; text-align: center;
}
.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-bottom: 20px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 14px; color: #c0c0e0;
  font-weight: 600; margin-bottom: 8px;
}
.form-group label .req { color: #ec4899; }
.form-group input, .form-group textarea {
  width: 100%; padding: 14px 16px; border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: #e0e0f0; font-size: 15px; font-family: inherit;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: #7c3aed;
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group input::placeholder, .form-group textarea::placeholder {
  color: #606088;
}
.btn-submit {
  width: 100%; padding: 16px; border-radius: 12px;
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  color: #fff; font-size: 16px; font-weight: 700;
  border: none; cursor: pointer; transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(124,58,237,0.35);
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(124,58,237,0.5);
}

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .form-section { padding: 32px 24px; }
}

/* ===== Pricing Cards ===== */
.pricing-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
  max-width: 900px; margin: 0 auto 48px;
}
.pricing-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.85), rgba(20,15,55,0.95));
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 20px; padding: 40px 32px; position: relative;
  transition: all 0.3s;
}
.pricing-card:hover {
  border-color: rgba(124,58,237,0.4);
  box-shadow: 0 8px 40px rgba(124,58,237,0.15);
  transform: translateY(-4px);
}
.pricing-card.featured {
  border-color: rgba(192,38,211,0.4);
  background: linear-gradient(135deg, rgba(45,25,90,0.9), rgba(30,20,70,0.95));
}
.pricing-badge {
  position: absolute; top: -12px; right: 24px;
  background: linear-gradient(135deg, #c026d3, #ec4899);
  color: #fff; font-size: 12px; font-weight: 700;
  padding: 4px 16px; border-radius: 12px;
}
.pricing-card h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.pricing-card .subtitle { font-size: 13px; color: #8080a8; margin-bottom: 20px; }
.pricing-price {
  font-size: 40px; font-weight: 800; color: #fff; margin-bottom: 4px;
}
.pricing-price .currency { font-size: 20px; vertical-align: top; margin-right: 2px; }
.pricing-price .unit { font-size: 15px; color: #9c98c0; font-weight: 500; }
.pricing-info { font-size: 13px; color: #9c98c0; margin-bottom: 24px; }
.pricing-credits {
  background: rgba(124,58,237,0.1); border-radius: 10px;
  padding: 12px 16px; margin-bottom: 24px;
}
.pricing-credits p { font-size: 13px; color: #c4b5fd; margin-bottom: 2px; }
.pricing-features { margin-bottom: 28px; }
.pricing-features li {
  font-size: 14px; color: #b8b4d8; padding: 6px 0;
  display: flex; align-items: center; gap: 8px;
}
.pricing-features li::before {
  content: '✓'; color: #10b981; font-weight: 700; font-size: 14px;
}
.pricing-btn {
  display: block; width: 100%; text-align: center;
  padding: 14px; border-radius: 12px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.3s;
}
.pricing-btn-primary {
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  color: #fff; box-shadow: 0 4px 20px rgba(124,58,237,0.35);
}
.pricing-btn-primary:hover {
  box-shadow: 0 6px 28px rgba(124,58,237,0.5);
  transform: translateY(-2px);
}
.pricing-btn-secondary {
  background: rgba(255,255,255,0.06);
  color: #d0d0e8; border: 1px solid rgba(255,255,255,0.12);
}
.pricing-btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

/* Promo Banner */
.promo-banner {
  background: linear-gradient(135deg, rgba(192,38,211,0.15), rgba(124,58,237,0.1));
  border: 1px solid rgba(192,38,211,0.25);
  border-radius: 14px; padding: 24px 32px; text-align: center;
  max-width: 900px; margin: 0 auto 48px;
}
.promo-banner h4 { font-size: 18px; color: #ec4899; font-weight: 700; margin-bottom: 8px; }
.promo-banner p { font-size: 14px; color: #b8b4d8; }

/* Pricing Note */
.pricing-note {
  max-width: 900px; margin: 0 auto 60px;
  text-align: center; font-size: 14px; color: #8080a8;
  padding: 20px; border-top: 1px solid rgba(255,255,255,0.06);
}
.pricing-note strong { color: #c4b5fd; }

/* Purchase Guide */
.guide-steps {
  max-width: 800px; margin: 0 auto;
}
.guide-step {
  display: flex; gap: 24px; margin-bottom: 32px;
  padding: 28px; border-radius: 16px;
  background: linear-gradient(135deg, rgba(30,20,70,0.6), rgba(20,15,55,0.7));
  border: 1px solid rgba(124,58,237,0.12);
}
.step-number {
  width: 48px; height: 48px; border-radius: 14px;
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.step-content h3 { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.step-content p { font-size: 14px; color: #9c98c0; line-height: 1.7; }
.step-content .warning { color: #f59e0b; font-size: 13px; margin-top: 6px; }

@media (max-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .guide-step { flex-direction: column; gap: 16px; }
}

/* ===== Product Page New Content ===== */
.article-section { padding: 90px 0 70px; }
.article-grid {
  display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 48px;
  align-items: start;
}
.article-main h2 {
  font-size: 28px; font-weight: 800; color: #fff; line-height: 1.4; margin-bottom: 28px;
}
.article-main h3 {
  font-size: 22px; font-weight: 800; color: #fff; line-height: 1.4; margin-bottom: 28px;
}
.article-main h2 .highlight,
.article-main h3 .highlight {
  background: linear-gradient(90deg, #a855f7, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.article-main p {
  font-size: 16px; color: #b8b4d8; line-height: 1.9; margin-bottom: 22px;
}
.article-main strong { color: #fff; }

.problem-list {
  background: rgba(30,20,70,0.4);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 28px;
  margin: 28px 0;
}
.problem-item {
  display: flex; gap: 18px; margin-bottom: 24px;
}
.problem-item:last-child { margin-bottom: 0; }
.problem-item .num {
  width: 28px; height: 28px; border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.problem-item p { font-size: 15px; color: #b8b4d8; line-height: 1.8; margin-bottom: 0; }
.problem-item p strong { color: #ec4899; font-weight: 700; }

.article-sidebar {
  position: sticky; top: 100px;
}
.comparison-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.6), rgba(20,15,55,0.7));
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 20px; padding: 28px;
}
.comparison-card h3 {
  font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 18px;
}
.comparison-card .intro {
  font-size: 14px; color: #9c98c0; line-height: 1.8; margin-bottom: 20px;
}
.comparison-item {
  background: rgba(255,255,255,0.04);
  border-radius: 12px; padding: 18px; margin-bottom: 14px;
}
.comparison-item.personal { border-left: 3px solid #22d3ee; }
.comparison-item.enterprise {
  background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(192,38,211,0.15));
  border-left: 3px solid #c026d3;
}
.comparison-item .label {
  font-size: 15px; font-weight: 700; margin-bottom: 6px;
}
.comparison-item.personal .label { color: #22d3ee; }
.comparison-item.enterprise .label { color: #c026d3; }
.comparison-item .title {
  font-size: 14px; color: #e0e0f0; line-height: 1.7;
}
.comparison-summary {
  font-size: 14px; color: #9c98c0; line-height: 1.8; margin-top: 20px;
}
.comparison-summary strong { color: #e0e0f0; }

/* Management Cards */
.management-section { padding: 70px 0 90px; }
.management-section .section-header { margin-bottom: 48px; }
.management-section .section-header p {
  font-size: 20px; color: #d0d0e8; max-width: 960px; line-height: 1.8;
}
.management-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.management-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.7), rgba(20,15,55,0.8));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 32px 26px;
  transition: all 0.3s;
}
.management-card:hover {
  border-color: rgba(124,58,237,0.35);
  transform: translateY(-4px);
}
.management-card .icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(124,58,237,0.15);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.management-card .icon svg, .management-card .icon .feather {
  width: 24px; height: 24px; stroke: #22d3ee; stroke-width: 1.5;
  fill: none; stroke-linecap: round; stroke-linejoin: round;
}
.management-card h3 {
  font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px;
}
.management-card h3 .highlight {
  color: #ec4899; font-weight: 700;
}
.management-card p {
  font-size: 14px; color: #9c98c0; line-height: 1.75;
}

/* Action Steps */
.action-section { padding: 90px 0; }
.action-section .section-header h2 { font-size: 34px; }
.action-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.action-card {
  background: linear-gradient(135deg, rgba(30,20,70,0.6), rgba(20,15,55,0.7));
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 16px; padding: 30px 26px;
  display: flex; gap: 18px; align-items: flex-start;
  transition: all 0.3s;
}
.action-card:hover {
  border-color: rgba(124,58,237,0.35);
  transform: translateY(-4px);
}
.action-card .num {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.action-card p { font-size: 14px; color: #b8b4d8; line-height: 1.8; margin-bottom: 0; }

.mini-hero {
  padding: 90px 0; text-align: center;
  background: radial-gradient(ellipse at 50% 50%, rgba(124,58,237,0.12) 0%, transparent 55%);
}
.mini-hero .tag {
  display: inline-block; padding: 6px 18px; border-radius: 20px;
  background: rgba(124,58,237,0.2); border: 1px solid rgba(124,58,237,0.3);
  font-size: 13px; color: #c4b5fd; margin-bottom: 20px;
}
.mini-hero h2 { font-size: 34px; font-weight: 800; letter-spacing: 0.5px; color: #fff; margin-bottom: 28px; }
.mini-hero h2 .highlight {
  background: linear-gradient(90deg, #a855f7, #ec4899);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 1024px) {
  .management-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .article-grid { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .management-grid { grid-template-columns: 1fr; }
  .action-grid { grid-template-columns: 1fr; }
}

/* QR Code */
.qrcode-box {
  margin-top: 20px; text-align: center;
  background: rgba(255,255,255,0.05); border-radius: 14px;
  padding: 24px; display: inline-block;
}
.qrcode-img {
  width: 180px; height: 180px; border-radius: 8px;
  border: 2px solid rgba(124,58,237,0.3);
  background: #fff; padding: 8px;
}
.qrcode-label {
  font-size: 15px; font-weight: 600; color: #c4b5fd;
  margin-top: 12px;
}
.qrcode-note {
  font-size: 12px; color: #8080a8; margin-top: 4px;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 0;
  background: rgba(26,21,81,0.6);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 14px; color: #8080a8; margin-top: 16px; line-height: 1.7; }
.footer-contact-info { margin-top: 20px; }
.footer-contact-info p { font-size: 13px; color: #7070a0; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.footer-contact-info svg, .footer-contact-info .feather {
  width: 16px; height: 16px; stroke: #8080a8; stroke-width: 1.5;
  fill: none; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0;
}
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col a {
  display: block; font-size: 14px; color: #8080a8;
  margin-bottom: 10px; transition: color 0.2s;
}
.footer-col a:hover { color: #c4b5fd; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0; text-align: center;
}
.footer-bottom p { font-size: 13px; color: #606088; }
.back-to-top {
  position: fixed; right: 32px; bottom: 32px; z-index: 900;
  width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed, #c026d3);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 18px rgba(124,58,237,0.4);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s, box-shadow 0.3s;
}
.back-to-top svg {
  width: 20px; height: 20px; stroke: #fff; stroke-width: 2;
  fill: none; stroke-linecap: round; stroke-linejoin: round;
}
.back-to-top.visible { opacity: 0.55; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
  opacity: 1;
  transform: translateY(-3px);
  box-shadow: 0 6px 22px rgba(124,58,237,0.55);
}
@media (max-width: 480px) {
  .back-to-top { right: 20px; bottom: 20px; width: 42px; height: 42px; }
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ===== Responsive Typography ===== */
@media (max-width: 768px) {
  .hero h1, .page-hero h1 { font-size: 32px; }
  .hero p, .page-hero p { font-size: 15px; margin-bottom: 36px; }
  .section-header h2 { font-size: 28px; }
  .cta-section h2 { font-size: 26px; }
}
@media (max-width: 480px) {
  .hero { padding: 120px 0 60px; }
  .page-hero { padding: 110px 0 50px; }
  .hero h1, .page-hero h1 { font-size: 26px; }
  .section { padding: 60px 0; }
  .btn { padding: 12px 24px; font-size: 14px; }
}

/* ===== Page-specific Hero (smaller for inner pages) ===== */
.page-hero {
  padding: 150px 0 70px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(124,58,237,0.15) 0%, transparent 60%);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #1a1551; }
::-webkit-scrollbar-thumb { background: #2d1b69; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3d2b79; }