/* roulang page: index */
:root {
  --brand-400: #34D399;
  --brand-500: #10B981;
  --brand-600: #0D9668;
  --gold-400: #FBBF24;
  --gold-500: #F0A93B;
  --gold-600: #D07A1F;
  --ink-700: #1C2836;
  --ink-800: #131C26;
  --ink-900: #0B1117;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --radius-card: 16px;
  --radius-container: 24px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 8px 28px rgba(16, 185, 129, 0.15);
  --border-light: rgba(255, 255, 255, 0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background-color: var(--ink-900);
  color: #E5E7EB;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

.container-x { max-width: 1200px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

.dotted-bg {
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
}

.clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ink-800); }
::-webkit-scrollbar-thumb { background: #2A3B4D; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: #3B5268; }

.dock-nav {
  background: rgba(15, 23, 32, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  border-radius: 999px;
  height: 64px;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: 0.02em;
  color: #fff;
  white-space: nowrap;
}
.nav-logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.nav-link {
  position: relative;
  color: #B6C2CF;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  transition: color 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--brand-400);
  background: rgba(52, 211, 153, 0.06);
}
.nav-link.active {
  color: var(--brand-400);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 3px;
  border-radius: 4px;
  background: var(--brand-500);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--brand-500);
  color: #06121A;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 12px 28px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  box-shadow: 0 2px 12px rgba(16, 185, 129, 0.25);
}
.btn-primary:hover {
  background: var(--brand-400);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: #F3F4F6;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 12px 28px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}
.btn-outline:hover {
  border-color: var(--brand-400);
  color: var(--brand-400);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--brand-400);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.18);
  padding: 6px 16px;
  border-radius: 999px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-top: 14px;
  letter-spacing: -0.01em;
}
.section-desc {
  margin-top: 10px;
  color: #9CA3AF;
  font-size: 1rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--brand-400);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 7px 18px;
  border-radius: 999px;
}
.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-400) 0%, #E5E7EB 55%, var(--gold-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #D1D5DB;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.step-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 1px solid rgba(16, 185, 129, 0.45);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--brand-400);
  background: rgba(16, 185, 129, 0.06);
  transition: all 0.35s ease;
  flex-shrink: 0;
}
.step-ring {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  border: 1px dashed rgba(240, 169, 59, 0.35);
}
.step-ring .step-circle {
  width: 52px;
  height: 52px;
  border-color: var(--gold-400);
  color: var(--gold-400);
  background: rgba(240, 169, 59, 0.08);
  font-size: 1rem;
}
.step-connector {
  position: relative;
}
.step-connector::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -20px;
  width: 130px;
  height: 1px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
}
.step-connector-left::after {
  left: -20px;
  right: auto;
}
@media (max-width: 768px) {
  .step-connector::after, .step-connector-left::after {
    display: none;
  }
}
.reward-card {
  background: var(--ink-800);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}
.reward-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(240, 169, 59, 0.12);
  border-color: rgba(240, 169, 59, 0.18);
}
.reward-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(240, 169, 59, 0.1);
  color: var(--gold-500);
  border: 1px solid rgba(240, 169, 59, 0.12);
}
.reward-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gold-400);
  background: rgba(240, 169, 59, 0.12);
  border-radius: 999px;
  padding: 4px 12px;
  white-space: nowrap;
}
.reward-condition {
  font-size: 0.75rem;
  color: #9CA3AF;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  padding: 5px 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.progress-wrap {
  background: var(--ink-800);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-container);
  padding: 32px;
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) {
  .progress-wrap { padding: 40px 48px; }
}
.progress-track {
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand-600) 0%, var(--brand-400) 100%);
  transition: width 0.6s ease;
}
.progress-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 1;
  text-align: center;
}
.progress-dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink-700);
  border: 2px solid rgba(255, 255, 255, 0.15);
  color: #6B7280;
  font-size: 0.75rem;
  z-index: 2;
  transition: all 0.3s ease;
}
.progress-node.done .progress-dot {
  background: var(--brand-500);
  border-color: var(--brand-500);
  color: #06121A;
}
.progress-node.current .progress-dot {
  background: rgba(240, 169, 59, 0.12);
  border-color: var(--gold-500);
  color: var(--gold-400);
  box-shadow: 0 0 0 4px rgba(240, 169, 59, 0.15);
}
.progress-node.pending .progress-dot {
  background: var(--ink-700);
  border-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.25);
}
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--ink-800);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(16, 185, 129, 0.14);
  border-color: rgba(16, 185, 129, 0.2);
}
.news-card .cover-wrap {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.news-card .cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .cover-wrap img {
  transform: scale(1.04);
}
.news-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--brand-400);
  background: rgba(16, 185, 129, 0.1);
  border-radius: 999px;
  padding: 4px 12px;
}
.faq-item {
  background: var(--ink-800);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-card);
}
.faq-item.active {
  border-color: rgba(16, 185, 129, 0.25);
  box-shadow: var(--shadow-glow);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.96rem;
  color: #F3F4F6;
  transition: color 0.25s ease;
}
.faq-question:hover {
  color: var(--brand-400);
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  color: var(--brand-400);
  font-size: 1.1rem;
  line-height: 1;
  font-weight: 700;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-item.active .faq-icon {
  background: rgba(16, 185, 129, 0.15);
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 20px 20px;
  font-size: 0.9rem;
  color: #9CA3AF;
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  max-height: 400px;
}
.cta-band {
  background: var(--ink-900);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 180px;
  background: radial-gradient(closest-side, rgba(16, 185, 129, 0.16), transparent 70%);
  pointer-events: none;
}
.footer-link-group h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: #F9FAFB;
  margin-bottom: 14px;
}
.footer-link-group a {
  display: block;
  font-size: 0.85rem;
  color: #8E9BA8;
  padding: 4px 0;
  transition: color 0.25s ease;
}
.footer-link-group a:hover {
  color: var(--brand-400);
}
.footer-brand-desc {
  font-size: 0.88rem;
  color: #8E9BA8;
  line-height: 1.7;
  margin-top: 12px;
}
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: #9CA3AF;
  font-size: 0.95rem;
  background: var(--ink-800);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: 16px;
}
.mobile-panel {
  background: rgba(15, 23, 32, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  border-radius: 20px;
  padding: 16px;
  margin-top: 8px;
}
.mobile-panel a {
  display: block;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 0.94rem;
  color: #D1D5DB;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease;
}
.mobile-panel a:hover {
  background: rgba(16, 185, 129, 0.08);
  color: var(--brand-400);
}
.mobile-panel .mobile-cta {
  margin-top: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--brand-500);
  color: #06121A;
  font-weight: 700;
  text-align: center;
}
.img-shadow {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

/* roulang page: article */
:root {
            --brand-400: #34D399;
            --brand-500: #10B981;
            --brand-600: #0D9668;
            --gold-400: #FBBF24;
            --gold-500: #F0A93B;
            --gold-600: #D07A1F;
            --ink-700: #1C2836;
            --ink-800: #131C26;
            --ink-900: #0B1117;
            --text-main: #E5E7EB;
            --text-gray: #9CA3AF;
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-card: 16px;
            --radius-large: 24px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 28px rgba(16, 185, 129, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--ink-900);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        @media (min-width: 768px) {
            .container-x {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        /* ===== Dock 导航 ===== */
        .dock-nav {
            background: rgba(15, 23, 32, 0.95);
            border-radius: 999px;
            height: 64px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            z-index: 60;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
            letter-spacing: 1px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: rgba(16, 185, 129, 0.12);
            border-radius: 10px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 12px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: #D1D5DB;
            transition: all 0.25s ease;
        }

        .nav-link:hover {
            color: var(--brand-400);
            background: rgba(16, 185, 129, 0.08);
        }

        .nav-link.active {
            color: var(--brand-400);
            font-weight: 700;
            background: rgba(16, 185, 129, 0.1);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-500);
            color: #0B1117;
            font-weight: 800;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 15px;
            line-height: 1.2;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.25);
        }

        .btn-primary:hover {
            background: var(--brand-400);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(16, 185, 129, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(52, 211, 153, 0.5);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-weight: 600;
            border-radius: 999px;
            padding: 12px 28px;
            font-size: 15px;
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            border-color: var(--brand-400);
            color: var(--brand-400);
        }

        .mobile-panel {
            background: rgba(15, 23, 32, 0.98);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
            margin-top: 8px;
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            position: relative;
            z-index: 55;
        }

        .mobile-panel a {
            padding: 10px 14px;
            border-radius: 12px;
            font-size: 15px;
            color: #D1D5DB;
            transition: all 0.2s ease;
        }

        .mobile-panel a:hover {
            background: rgba(16, 185, 129, 0.08);
            color: var(--brand-400);
        }

        .mobile-panel a.active {
            color: var(--brand-400);
            font-weight: 700;
            background: rgba(16, 185, 129, 0.1);
        }

        .mobile-panel .mobile-cta {
            background: var(--brand-500);
            color: #0B1117;
            font-weight: 700;
            text-align: center;
            border-radius: 999px;
            margin-top: 8px;
        }

        /* ===== 文章页页头 ===== */
        .article-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding-top: 140px;
            padding-bottom: 72px;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(11, 17, 23, 0.82), rgba(11, 17, 23, 0.92));
            z-index: 1;
        }

        .article-banner .container-x {
            position: relative;
            z-index: 2;
        }

        .article-h1 {
            font-size: clamp(2rem, 4.5vw, 3.25rem);
            font-weight: 900;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            max-width: 900px;
        }

        .article-lead {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(229, 231, 235, 0.8);
            max-width: 720px;
            margin-bottom: 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(156, 163, 175, 0.8);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: var(--brand-400);
            transition: color 0.2s;
        }

        .breadcrumb a:hover {
            color: var(--brand-400);
            text-shadow: 0 0 12px rgba(52, 211, 153, 0.3);
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.25);
        }

        .breadcrumb .current {
            color: rgba(229, 231, 235, 0.7);
            max-width: 300px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(156, 163, 175, 0.8);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item svg {
            opacity: 0.7;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.2);
            color: var(--brand-400);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
        }

        /* ===== 正文排版 ===== */
        .article-body {
            line-height: 1.85;
            color: rgba(229, 231, 235, 0.92);
            font-size: 16px;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin: 2.25rem 0 1rem;
            padding-left: 16px;
            border-left: 4px solid var(--brand-500);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin: 1.75rem 0 0.75rem;
        }

        .article-body img {
            border-radius: 16px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow-card);
        }

        .article-body blockquote {
            border-left: 4px solid var(--brand-500);
            background: rgba(28, 40, 54, 0.6);
            padding: 1rem 1.25rem;
            color: rgba(229, 231, 235, 0.8);
            border-radius: 0 12px 12px 0;
            margin-bottom: 1.25rem;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1.25rem;
            color: rgba(229, 231, 235, 0.85);
        }

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

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

        .article-body li {
            margin-bottom: 0.4rem;
        }

        .article-body a {
            color: var(--brand-400);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--brand-400);
            text-shadow: 0 0 12px rgba(52, 211, 153, 0.3);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 1.5rem;
            font-size: 14px;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border-soft);
            padding: 10px 12px;
            text-align: left;
        }

        .article-body th {
            background: rgba(16, 185, 129, 0.08);
            font-weight: 700;
            color: #fff;
        }

        /* ===== 标签 pill ===== */
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-soft);
            border-radius: 999px;
            font-size: 13px;
            color: rgba(229, 231, 235, 0.7);
            transition: all 0.2s ease;
        }

        .tag-pill:hover {
            border-color: rgba(16, 185, 129, 0.4);
            color: var(--brand-400);
            background: rgba(16, 185, 129, 0.06);
        }

        /* ===== 推荐卡片 ===== */
        .recommend-card {
            background: var(--ink-800);
            border: 1px solid var(--border-soft);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
            display: block;
        }

        .recommend-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 28px rgba(16, 185, 129, 0.15);
            border-color: rgba(16, 185, 129, 0.2);
        }

        .recommend-card .card-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--ink-700);
        }

        .recommend-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .recommend-card:hover .card-image img {
            transform: scale(1.04);
        }

        .recommend-card .card-content {
            padding: 20px;
        }

        .recommend-card .card-cat {
            display: inline-block;
            font-size: 12px;
            color: var(--brand-400);
            background: rgba(16, 185, 129, 0.1);
            border-radius: 999px;
            padding: 4px 12px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .recommend-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.5;
            margin-bottom: 8px;
            transition: color 0.25s;
        }

        .recommend-card:hover .card-title {
            color: var(--brand-400);
        }

        .recommend-card .card-text {
            font-size: 14px;
            color: rgba(156, 163, 175, 0.9);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background-color: var(--ink-900);
            background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 26px 26px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 999px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.1), transparent 70%);
            top: -150px;
            right: -100px;
            pointer-events: none;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
        }

        .section-sub {
            font-size: 15px;
            color: rgba(156, 163, 175, 0.9);
            max-width: 560px;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-item {
            background: var(--ink-800);
            border: 1px solid var(--border-soft);
            border-radius: 16px;
            transition: border-color 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(16, 185, 129, 0.25);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: rgba(229, 231, 235, 0.95);
            gap: 16px;
        }

        .faq-item .faq-icon {
            flex-shrink: 0;
            color: var(--brand-400);
            transition: transform 0.3s ease;
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 22px;
            color: rgba(156, 163, 175, 0.85);
            font-size: 14px;
            line-height: 1.7;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 18px;
        }

        /* ===== 页脚 ===== */
        .footer-brand-desc {
            color: rgba(156, 163, 175, 0.7);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 14px;
        }

        .footer-link-group h4 {
            font-size: 14px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-link-group a {
            display: block;
            font-size: 14px;
            color: rgba(156, 163, 175, 0.8);
            padding: 5px 0;
            transition: color 0.2s ease;
        }

        .footer-link-group a:hover {
            color: var(--brand-400);
        }

        /* ===== 波纹 / 空态 ===== */
        .empty-state {
            background: var(--ink-800);
            border: 1px dashed rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            padding: 48px 24px;
            text-align: center;
            color: rgba(156, 163, 175, 0.6);
            font-size: 15px;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--ink-900);
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 999px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: rgba(16, 185, 129, 0.4);
        }

        /* ===== 焦点状态 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(52, 211, 153, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-banner {
                padding-top: 120px;
                padding-bottom: 56px;
            }
        }

        @media (max-width: 768px) {
            .article-banner {
                padding-top: 104px;
                padding-bottom: 44px;
                min-height: 420px;
            }

            .breadcrumb .current {
                max-width: 200px;
            }
        }

        @media (max-width: 520px) {
            .article-banner {
                padding-top: 96px;
            }

            .article-h1 {
                font-size: 26px;
            }

            .meta-row {
                flex-wrap: wrap;
                gap: 10px 14px;
                font-size: 13px;
            }

            .dock-nav {
                height: 58px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-400: #34D399;
            --brand-500: #10B981;
            --brand-600: #0D9668;
            --gold-400: #FBBF24;
            --gold-500: #F0A93B;
            --gold-600: #D07A1F;
            --ink-700: #1C2836;
            --ink-800: #131C26;
            --ink-900: #0B1117;
            --text-main: #E5E7EB;
            --text-sub: #9CA3AF;
            --text-mute: #6B7280;
            --border: rgba(255, 255, 255, 0.08);
            --radius-card: 1rem;
            --radius-lg: 1.5rem;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 28px rgba(16, 185, 129, 0.15);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--ink-900);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        .container-x {
            max-width: 80rem;
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media (min-width:768px) {
            .container-x {
                padding: 0 1.5rem;
            }
        }
        .dotted-bg {
            background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 26px 26px;
        }
        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            background: rgba(15, 23, 32, 0.95);
            border-radius: 9999px;
            padding: 0 1rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        @media (min-width:768px) {
            .dock-nav {
                padding: 0 1.5rem;
            }
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: .5rem;
            font-weight: 800;
            color: #fff;
            font-size: 1.05rem;
            white-space: nowrap;
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 9999px;
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.3);
            flex-shrink: 0;
        }
        .nav-link {
            color: #9CA3AF;
            font-size: .875rem;
            font-weight: 500;
            padding: .5rem .75rem;
            border-radius: 9999px;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--brand-400);
            background: rgba(16, 185, 129, 0.08);
        }
        .nav-link.active {
            color: var(--brand-400);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: var(--brand-500);
            color: #06251B;
            font-weight: 700;
            border-radius: 9999px;
            padding: .75rem 1.5rem;
            transition: all .3s ease;
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            background: var(--brand-400);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(16, 185, 129, 0.35);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-weight: 500;
            border-radius: 9999px;
            padding: .75rem 1.5rem;
            transition: all .3s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: var(--brand-400);
            color: var(--brand-400);
            transform: translateY(-2px);
        }
        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            padding: .5rem;
            border-radius: .75rem;
            transition: background .25s ease;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        @media (min-width:768px) {
            .menu-toggle {
                display: none;
            }
        }
        .mobile-panel {
            background: rgba(15, 23, 32, 0.98);
            border-radius: 1.5rem;
            padding: 1rem;
            margin-top: .5rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-panel a {
            display: block;
            padding: .75rem 1rem;
            border-radius: .75rem;
            color: #9CA3AF;
            font-size: .95rem;
            transition: all .25s ease;
        }
        .mobile-panel a:hover,
        .mobile-panel a.active {
            color: var(--brand-400);
            background: rgba(16, 185, 129, 0.08);
        }
        .mobile-panel .mobile-cta {
            margin-top: .5rem;
            text-align: center;
            background: var(--brand-500);
            color: #06251B;
            font-weight: 700;
            border-radius: 9999px;
        }
        .section {
            padding: 4rem 0;
        }
        @media (min-width:768px) {
            .section {
                padding: 6rem 0;
            }
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            line-height: 1.25;
        }
        .section-sub {
            color: var(--text-sub);
            max-width: 640px;
        }
        .card {
            background: var(--ink-800);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 1rem;
            padding: 1.5rem;
            transition: all .3s ease;
            box-shadow: var(--shadow-card);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(16, 185, 129, 0.15);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: .25rem;
            border-radius: 9999px;
            font-size: .75rem;
            padding: .25rem .75rem;
            font-weight: 600;
        }
        .category-hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 8rem 0 4rem;
            background-size: cover;
            background-position: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0.6), rgba(11, 17, 23, 0.88));
            z-index: 1;
        }
        .category-hero>* {
            position: relative;
            z-index: 2;
        }
        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.25rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .hero-sub {
            font-size: 1.1rem;
            line-height: 1.75;
            color: #D1D5DB;
            max-width: 40rem;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            font-size: .85rem;
            color: #9CA3AF;
        }
        .breadcrumb a {
            color: #9CA3AF;
            transition: color .25s ease;
        }
        .breadcrumb a:hover {
            color: var(--brand-400);
        }
        .breadcrumb .sep {
            color: #4B5563;
        }
        .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 9999px;
            border: 2px solid rgba(16, 185, 129, 0.4);
            color: var(--brand-400);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
            transition: all .3s ease;
            flex-shrink: 0;
        }
        .step-circle:hover {
            background: rgba(240, 169, 59, 0.1);
            border-color: var(--gold-500);
            color: var(--gold-400);
        }
        .faq-item {
            background: var(--ink-800);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 1rem;
            overflow: hidden;
            transition: border-color .3s ease;
        }
        .faq-item:hover {
            border-color: rgba(16, 185, 129, 0.12);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            background: transparent;
            border: none;
            color: var(--text-main);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            text-align: left;
            transition: color .25s ease;
        }
        .faq-question:hover {
            color: var(--brand-400);
        }
        .faq-question .faq-icon-plus {
            display: block;
            color: var(--text-sub);
            flex-shrink: 0;
        }
        .faq-question .faq-icon-minus {
            display: none;
            color: var(--brand-400);
            flex-shrink: 0;
        }
        .faq-question.active .faq-icon-plus {
            display: none;
        }
        .faq-question.active .faq-icon-minus {
            display: block;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            padding: 0 1.5rem;
            color: var(--text-sub);
            font-size: .9rem;
            line-height: 1.75;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }
        .footer-brand-desc {
            color: #6B7280;
            font-size: .85rem;
            margin-top: .75rem;
            margin-bottom: 1rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-link-group {
            display: flex;
            flex-direction: column;
            gap: .5rem;
        }
        .footer-link-group h4 {
            color: var(--text-main);
            font-size: .9rem;
            font-weight: 700;
            margin-bottom: .5rem;
        }
        .footer-link-group a {
            color: #6B7280;
            font-size: .85rem;
            transition: color .25s ease;
        }
        .footer-link-group a:hover {
            color: var(--brand-400);
        }
        .info-table {
            width: 100%;
            border-collapse: collapse;
        }
        .info-table tr {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .info-table tr:last-child {
            border-bottom: none;
        }
        .info-table td {
            padding: .75rem 0;
            font-size: .9rem;
            color: #9CA3AF;
        }
        .info-table td:first-child {
            color: #6B7280;
            font-weight: 500;
            white-space: nowrap;
            width: 96px;
            vertical-align: top;
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: .75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(16, 185, 129, 0.1);
            color: var(--brand-400);
            flex-shrink: 0;
        }
        .feature-icon.gold {
            background: rgba(240, 169, 59, 0.1);
            color: var(--gold-400);
        }