/* roulang page: index */
:root {
  --bg-dark: #0A0C0B;
  --bg-card: #111613;
  --bg-card-2: #1A211D;
  --text-main: #F2F5EF;
  --text-sub: #A3ADA1;
  --text-dim: #6B7567;
  --border: #262E28;
  --border-hover: rgba(212, 255, 63, 0.4);
  --primary: #D4FF3F;
  --secondary: #7DF9FF;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; outline: none; }
.container { width: 100%; max-width: 1200px;  margin: 0 auto; padding-left: 1rem; padding-right: 1rem; }
@media (min-width: 768px) { .container { padding-left: 1.5rem; padding-right: 1.5rem; } }
.section-pad { padding: 4rem 0; }
@media (min-width: 768px) { .section-pad { padding: 5rem 0; } }
.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-main);
  position: relative;
  margin-bottom: 1rem;
}
@media (min-width: 768px) { .section-title { font-size: 2.25rem; } }
.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, #D4FF3F, #7DF9FF);
  margin-top: 0.75rem;
  border-radius: 2px;
}
.section-sub {
  font-size: 1rem;
  color: var(--text-sub);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.hero-bg {
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  position: relative;
}
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,12,11,0.82) 0%, rgba(10,12,11,0.62) 40%, rgba(10,12,11,0.4) 75%, rgba(10,12,11,0.9) 100%);
  z-index: 1;
}
.hero-bg > * { position: relative; z-index: 2; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(10,12,11,0.6);
  border: 1px solid rgba(212,255,63,0.5);
  color: var(--primary);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-md);
}
.btn-primary, .btn-secondary, .btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
  min-height: 44px;
}
.btn-primary {
  background-color: var(--primary);
  color: #0A0C0B;
}
.btn-primary:hover {
  background-color: #C2F02E;
  box-shadow: 0 0 24px rgba(212,255,63,0.4);
  transform: translateY(-2px);
}
.btn-primary .arrow {
  transition: transform 0.3s ease;
}
.btn-primary:hover .arrow {
  transform: translateX(4px);
}
.btn-secondary {
  border: 1px solid #3A453A;
  color: #fff;
  background: transparent;
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 0 16px rgba(212,255,63,0.15);
  transform: translateY(-2px);
}
.btn-outline {
  border: 1px solid var(--border);
  color: var(--text-main);
  background: transparent;
  font-weight: 500;
}
.btn-outline:hover {
  border-color: var(--border-hover);
  color: var(--primary);
  box-shadow: 0 0 20px rgba(212,255,63,0.12);
}
.nav-link {
  position: relative;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--text-sub);
  padding: 0.5rem 0.25rem;
  transition: all 0.3s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s ease;
  border-radius: 2px;
}
.nav-link:hover {
  color: #fff;
}
.nav-link:hover::after {
  width: 100%;
}
.nav-link.active {
  color: #fff;
  text-shadow: 0 0 12px rgba(212,255,63,0.5);
}
.nav-link.active::after {
  width: 100%;
  box-shadow: 0 0 8px rgba(212,255,63,0.4);
}
.faq-details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s;
}
.faq-details[open] {
  border-color: rgba(212,255,63,0.35);
}
.faq-details summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  user-select: none;
}
.faq-details summary::-webkit-details-marker { display: none; }
.faq-details summary::marker { display: none; }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 300;
  flex-shrink: 0;
  transition: transform 0.3s ease, border-color 0.3s;
}
.faq-details[open] .faq-icon {
  transform: rotate(45deg);
  border-color: rgba(212,255,63,0.5);
}
.faq-details .faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.8;
}
.card-hover {
  transition: all 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  border-color: rgba(212,255,63,0.3);
}
.card-hover:hover .card-line {
  width: 100%;
}
.card-line {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.35s ease;
  border-radius: 2px;
}
.stat-num {
  font-family: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.neon-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212,255,63,0.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  transition: transform 0.6s ease;
}
.neon-glow-secondary {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(125,249,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.countdown-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  min-width: 70px;
  text-align: center;
}
.countdown-num {
  font-family: "DIN Alternate", "Bebas Neue", sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.countdown-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 4px;
  letter-spacing: 0.08em;
}
.input-field {
  width: 100%;
  background: var(--bg-card-2);
  border: 1px solid #2A342C;
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: #fff;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.input-field::placeholder { color: var(--text-dim); }
.input-field:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(125,249,255,0.1);
}
select.input-field {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236B7567' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%236B7567' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}
.mobile-menu {
  display: none;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 1rem;
  flex-direction: column;
  gap: 0.75rem;
}
.mobile-menu.open { display: flex; }
@media (min-width: 768px) {
  .mobile-menu { display: none !important; }
}
.hero-title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
}
@media (min-width: 768px) { .hero-title { font-size: 3.5rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 4rem; } }
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-sub);
  max-width: 520px;
  line-height: 1.75;
}
.trust-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(17,22,19,0.5);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 0.5rem;
  font-size: 0.875rem;
  color: var(--text-sub);
}
.trust-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}
.price-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.75rem 1.5rem;
  transition: all 0.3s;
  overflow: hidden;
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  border-color: rgba(212,255,63,0.3);
}
.price-card.featured {
  border-color: rgba(212,255,63,0.4);
  box-shadow: 0 0 40px rgba(212,255,63,0.06);
  background: linear-gradient(180deg, rgba(212,255,63,0.03) 0%, var(--bg-card) 40%);
}
.price-card.featured::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
}
.price-num {
  font-family: "DIN Alternate", "Bebas Neue", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.price-num .currency {
  font-size: 1rem;
  color: var(--text-dim);
  margin-right: 2px;
  font-weight: 400;
}
.price-num .period {
  font-size: 0.875rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: 4px;
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin: 1.5rem 0;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-sub);
  line-height: 1.5;
}
.feature-check {
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
  font-size: 0.875rem;
}
.compare-grid-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  align-items: center;
}
.compare-grid-row > div {
  padding: 0.875rem 1.25rem;
  font-size: 0.875rem;
}
.compare-grid-row.header-row {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.compare-grid-row.header-row > div {
  font-weight: 700;
  letter-spacing: 0.04em;
  align-items: center;
}
.compare-grid-row.header-row .highlight-col {
  color: var(--primary);
  background: rgba(212,255,63,0.04);
}
.compare-grid-row:nth-child(even) { background: rgba(17,22,19,0.3); }
.compare-grid-row.row-divider { border-top: 1px solid var(--border); }
.mobile-compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.mobile-compare-card .plan-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
}
.footer-link {
  font-size: 0.875rem;
  color: var(--text-sub);
  transition: color 0.3s;
  display: inline-block;
  padding: 0.25rem 0;
}
.footer-link:hover {
  color: var(--primary);
}
.news-card-img {
  transition: transform 0.5s ease;
}
.news-card:hover .news-card-img {
  transform: scale(1.05);
}
@media (max-width: 767px) {
  .hero-title { font-size: 2rem; }
  .section-title { font-size: 1.5rem; }
  .compare-desktop { display: none; }
}
@media (min-width: 768px) {
  .compare-mobile { display: none; }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0A0C0B;
            --bg-secondary: #111613;
            --bg-tertiary: #1A211D;
            --text-primary: #F2F5EF;
            --text-secondary: #A3ADA1;
            --text-weak: #6B7567;
            --accent-primary: #D4FF3F;
            --accent-secondary: #7DF9FF;
            --border-default: #262E28;
            --border-hover: rgba(212, 255, 63, 0.4);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.6);
            --glow-primary: 0 0 24px rgba(212, 255, 63, 0.25);
            --glow-secondary: 0 0 20px rgba(125, 249, 255, 0.2);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .nav-link {
            position: relative;
            text-decoration: none;
            transition: all 0.3s;
            color: var(--text-secondary);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            transition: width 0.3s;
            border-radius: 1px;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: #fff;
            text-shadow: 0 0 12px rgba(212, 255, 63, 0.5);
        }
        .nav-link:hover {
            color: #fff;
        }
        .btn-primary {
            background: var(--accent-primary);
            color: var(--bg-primary);
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-primary:hover {
            box-shadow: var(--glow-primary);
            transform: translateY(-1px);
        }
        .btn-primary .arrow {
            transition: transform 0.3s;
        }
        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }
        .btn-outline {
            border: 1px solid #3A453A;
            color: #fff;
            border-radius: var(--radius-sm);
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .btn-outline:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
            box-shadow: var(--glow-primary);
        }
        .card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            border-radius: var(--radius-md);
            transition: all 0.3s;
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-hover-line {
            position: relative;
            overflow: hidden;
        }
        .card-hover-line::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            transition: width 0.4s;
            border-radius: 0 2px 2px 0;
        }
        .card-hover-line:hover::before {
            width: 100%;
        }
        .section-line {
            display: inline-block;
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 2px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-default);
            border-radius: 12px;
            transition: all 0.3s;
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::-moz-list-bullet {
            display: none;
        }
        .faq-item summary .icon {
            transition: transform 0.3s;
            font-weight: 400;
            font-size: 20px;
            color: var(--accent-primary);
        }
        .faq-item[open] summary .icon {
            transform: rotate(45deg);
        }
        .faq-item[open] {
            border-color: rgba(212, 255, 63, 0.4);
        }
        .faq-item .answer {
            padding: 0 20px 16px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .form-input {
            background: var(--bg-tertiary);
            border: 1px solid #2A342C;
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            color: #fff;
            width: 100%;
            transition: all 0.3s;
            outline: none;
        }
        .form-input::placeholder {
            color: var(--text-weak);
        }
        .form-input:focus {
            border-color: var(--accent-secondary);
            box-shadow: 0 0 0 3px rgba(125, 249, 255, 0.1);
        }
        select.form-input {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%236B7567' stroke-width='2'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 12px;
            padding-right: 40px;
            cursor: pointer;
        }
        select.form-input option {
            background: var(--bg-tertiary);
            color: #fff;
        }
        .footer-link {
            color: var(--text-secondary);
            font-size: 14px;
            text-decoration: none;
            transition: all 0.3s;
        }
        .footer-link:hover {
            color: var(--accent-primary);
        }
        .stat-number {
            font-family: "DIN Alternate", "Bebas Neue", "Arial Narrow", sans-serif;
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .hero-fade-item {
            animation: fadeUp 0.8s ease-out both;
        }
        .hero-fade-item:nth-child(1) {
            animation-delay: 0.1s;
        }
        .hero-fade-item:nth-child(2) {
            animation-delay: 0.2s;
        }
        .hero-fade-item:nth-child(3) {
            animation-delay: 0.3s;
        }
        .hero-fade-item:nth-child(4) {
            animation-delay: 0.4s;
        }
        .hero-fade-item:nth-child(5) {
            animation-delay: 0.5s;
        }
        .glow-orb {
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(212, 255, 63, 0.12);
            filter: blur(100px);
            pointer-events: none;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A0C0B;
            --bg-card: #111613;
            --bg-card-hover: #151B17;
            --bg-input: #1A211D;
            --border-color: #262E28;
            --border-hover: rgba(212, 255, 63, 0.4);
            --text-primary: #F2F5EF;
            --text-secondary: #A3ADA1;
            --text-muted: #6B7567;
            --accent: #D4FF3F;
            --accent-hover: #C2F02E;
            --accent-secondary: #7DF9FF;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 32px rgba(0, 0, 0, 0.4);
            --glow-accent: 0 0 24px rgba(212, 255, 63, 0.25);
            --glow-secondary: 0 0 20px rgba(125, 249, 255, 0.2);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        .nav-link {
            position: relative;
            font-size: 0.875rem;
            letter-spacing: 0.05em;
            color: var(--text-secondary);
            padding: 0.25rem 0;
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
            transition: width 0.3s ease;
            border-radius: 2px;
        }

        .nav-link:hover {
            color: #ffffff;
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: #ffffff;
            text-shadow: 0 0 12px rgba(212, 255, 63, 0.5);
        }

        .nav-link.active::after {
            width: 100%;
            box-shadow: 0 0 8px rgba(212, 255, 63, 0.6);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--accent);
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 0.875rem;
            padding: 0.625rem 1.5rem;
            border-radius: var(--radius-sm);
            min-height: 44px;
            transition: all 0.3s ease;
            border: 1px solid var(--accent);
        }

        .btn-primary:hover {
            background-color: var(--accent-hover);
            box-shadow: var(--glow-accent);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border: 1px solid #3A453A;
            color: #ffffff;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 0.625rem 1.5rem;
            border-radius: var(--radius-sm);
            min-height: 44px;
            transition: all 0.3s ease;
            background: transparent;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: 0 0 16px rgba(212, 255, 63, 0.15);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 0.3rem 0.875rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 9999px;
            letter-spacing: 0.04em;
            border: 1px solid rgba(212, 255, 63, 0.35);
            color: var(--accent);
            background: rgba(212, 255, 63, 0.05);
        }

        .breadcrumb {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

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

        .breadcrumb-sep {
            color: #3A453A;
        }

        .breadcrumb-current {
            color: #d5dbd2;
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .heading-line {
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
            border-radius: 2px;
            display: inline-block;
            flex-shrink: 0;
        }

        .article-body {
            font-size: 15px;
            line-height: 1.9;
            color: #C5CCC2;
        }

        .article-body > * + * {
            margin-top: 1.25rem;
        }

        .article-body p {
            margin-bottom: 1.4rem;
            color: #C5CCC2;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin: 2.75rem 0 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-color);
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #ffffff;
            margin: 2.25rem 0 0.875rem;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .article-body ul {
            list-style: disc;
        }

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

        .article-body li {
            margin-bottom: 0.5rem;
            color: #C5CCC2;
        }

        .article-body img {
            border-radius: 12px;
            border: 1px solid var(--border-color);
            margin: 2rem auto;
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background-color: var(--bg-card);
            padding: 1.1rem 1.25rem;
            border-radius: 0 10px 10px 0;
            margin: 1.75rem 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-body blockquote p {
            margin-bottom: 0;
            color: var(--text-secondary);
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--accent-secondary);
        }

        .article-body code {
            background-color: var(--bg-input);
            border: 1px solid #2A342C;
            padding: 0.15rem 0.4rem;
            border-radius: 4px;
            font-size: 0.85em;
            color: var(--accent);
            font-family: "SFMono-Regular", Consolas, monospace;
        }

        .article-body pre {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 1.25rem;
            overflow-x: auto;
            margin: 1.75rem 0;
        }

        .article-body pre code {
            background: none;
            border: none;
            padding: 0;
            color: var(--text-primary);
            font-size: 0.875rem;
        }

        .article-body figcaption {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: -1rem;
            margin-bottom: 1.5rem;
        }

        .related-link {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            padding: 0.875rem 0.75rem;
            border: 1px solid rgba(38, 46, 40, 0.6);
            border-radius: 10px;
            background: rgba(17, 22, 19, 0.6);
            transition: all 0.3s ease;
        }

        .related-link:hover {
            border-color: rgba(212, 255, 63, 0.3);
            transform: translateY(-2px);
            background: var(--bg-card);
        }

        .related-title {
            font-size: 0.875rem;
            color: #D5DBD2;
            font-weight: 500;
            line-height: 1.5;
            transition: color 0.3s;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-link:hover .related-title {
            color: var(--accent);
        }

        .related-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .footer-link {
            font-size: 0.875rem;
            color: var(--text-secondary);
            transition: all 0.3s ease;
            display: inline-block;
            margin-bottom: 0.375rem;
        }

        .footer-link:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .side-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .side-card img {
            transition: transform 0.4s ease;
        }

        .side-card img:hover {
            transform: scale(1.02);
        }

        .mobile-menu {
            display: none;
        }

        .mobile-menu.open {
            display: block;
            animation: fadeUp 0.3s ease-out;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(15px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-up {
            animation: fadeUp 0.6s ease-out forwards;
        }

        .delay-100 {
            animation-delay: 100ms;
        }

        .delay-200 {
            animation-delay: 200ms;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        @media (min-width: 1024px) {
            .article-layout {
                display: grid;
                grid-template-columns: minmax(0, 1fr) 320px;
                gap: 3rem;
                align-items: start;
            }
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        .back-panel {
            border-top: 1px solid var(--border-color);
            margin-top: 2.75rem;
            padding-top: 2rem;
        }

        .cta-glow {
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 9999px;
            background: rgba(212, 255, 63, 0.08);
            filter: blur(100px);
            pointer-events: none;
        }