/* roulang page: index */
:root {
            --primary-500: #14B8A6;
            --primary-600: #0D9488;
            --primary-700: #0F766E;
            --primary-800: #115E59;
            --primary-900: #134E4A;
            --primary-50: #F0FDFA;
            --accent-500: #F97316;
            --accent-600: #EA580C;
            --accent-100: #FFEDD5;
            --bg-main: #F7FAFA;
            --bg-card: #FFFFFF;
            --bg-dark: #052E2B;
            --text-main: #0F172A;
            --text-secondary: #475569;
            --weak: #94A3B8;
            --border-color: #E2E8F0;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-soft: 0 4px 20px rgba(13, 148, 136, 0.08);
            --shadow-lift: 0 12px 32px rgba(13, 148, 136, 0.14);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        input {
            font-family: inherit;
            outline: none;
        }

        .container-x {
            max-width: 80rem;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container-x {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-x {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .header-glass {
            backdrop-filter: blur(16px);
            background-color: rgba(255, 255, 255, 0.88);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }

        .nav-link {
            position: relative;
            font-weight: 600;
            font-size: 0.95rem;
            color: #475569;
            transition: color 0.2s ease;
            padding: 0.5rem 0.25rem;
            margin: 0 0.75rem;
        }

        .nav-link:hover {
            color: var(--accent-600);
        }

        .nav-link.active {
            color: var(--primary-700);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 999px;
            background-color: var(--accent-500);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--accent-500);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            background-color: var(--accent-600);
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(234, 88, 12, 0.28);
        }

        .btn-primary:active {
            transform: scale(0.96);
        }

        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.25);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: transparent;
            color: var(--primary-700);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            border: 1.5px solid var(--primary-600);
            transition: all 0.25s ease;
        }

        .btn-secondary:hover {
            background-color: rgba(240, 253, 250, 0.7);
            border-color: var(--primary-700);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: scale(0.96);
        }

        .btn-secondary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.18);
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: #fff;
            color: var(--primary-800);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            transition: all 0.25s ease;
        }

        .btn-white:hover {
            background-color: #f0fdfa;
            transform: translateY(-2px);
        }

        .countdown-card {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 1rem;
            padding: 1rem 0.75rem;
            text-align: center;
            min-width: 85px;
            backdrop-filter: blur(4px);
        }

        .countdown-num {
            font-family: ui-monospace, "Cascadia Code", "JetBrains Mono", "SFMono-Regular", monospace;
            font-feature-settings: "tnum";
            font-size: 2.25rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .countdown-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
            letter-spacing: 0.05em;
        }

        .card-point {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 1.25rem;
            padding: 2rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .card-point:hover {
            transform: translateY(-4px);
            border-color: rgba(20, 184, 166, 0.5);
            box-shadow: 0 12px 32px rgba(13, 148, 136, 0.12);
        }

        .card-point:hover .point-number {
            color: var(--accent-500);
        }

        .point-number {
            font-size: 4.5rem;
            font-weight: 800;
            line-height: 1;
            color: rgba(15, 23, 42, 0.08);
            transition: color 0.3s ease;
            display: block;
        }

        .card-cover {
            position: relative;
            overflow: hidden;
            border-radius: 1.25rem;
            aspect-ratio: 16/10;
            background-color: #e2e8f0;
        }

        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

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

        .play-overlay {
            position: absolute;
            inset: 0;
            background: rgba(5, 46, 43, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
            border-radius: 1.25rem;
        }

        .card-cover:hover .play-overlay {
            opacity: 1;
        }

        .duration-badge {
            position: absolute;
            bottom: 0.75rem;
            right: 0.75rem;
            background-color: rgba(5, 46, 43, 0.75);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .list-item {
            display: flex;
            align-items: stretch;
            gap: 1.25rem;
            padding: 1.25rem 1rem;
            border-radius: 1rem;
            transition: background-color 0.2s ease;
            border: 1px solid transparent;
        }

        .list-item:hover {
            background-color: rgba(240, 253, 250, 0.7);
            border-color: rgba(20, 184, 166, 0.2);
        }

        .list-item:hover .item-date {
            color: var(--accent-500);
        }

        .list-item:hover .item-title {
            color: var(--accent-600);
        }

        .item-date {
            font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", monospace;
            font-feature-settings: "tnum";
            min-width: 68px;
            text-align: center;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 0.25rem 0.75rem;
            background: #f8fafc;
            border-radius: 0.75rem;
            transition: color 0.2s ease;
        }

        .item-date-day {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.2;
        }

        .item-date-month {
            font-size: 0.75rem;
            color: var(--weak);
        }

        .faq-item {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 1rem;
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item.open {
            border-color: rgba(20, 184, 166, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            user-select: none;
        }

        .faq-icon {
            font-size: 1.5rem;
            color: var(--primary-600);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 1rem;
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .news-empty {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 3rem 1rem;
            background: #fff;
            border-radius: 1.25rem;
            border: 1px dashed #cbd5e1;
        }

        .live-dot {
            position: relative;
            display: inline-block;
            width: 10px;
            height: 10px;
            background-color: #ef4444;
            border-radius: 50%;
            margin-right: 0.5rem;
        }

        .live-dot::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px solid rgba(239, 68, 68, 0.5);
            animation: pulse-ring 1.5s ease-out infinite;
        }

        @keyframes pulse-ring {
            0% {
                transform: scale(0.8);
                opacity: 1;
            }
            100% {
                transform: scale(1.6);
                opacity: 0;
            }
        }

        @keyframes countdown-flash {
            0% {
                text-shadow: 0 0 20px rgba(255, 255, 255, 0.6);
            }
            100% {
                text-shadow: none;
            }
        }

        .countdown-num.flash {
            animation: countdown-flash 0.4s ease;
        }

        .footer-link {
            display: block;
            color: #94a3b8;
            font-size: 0.9rem;
            padding: 0.3rem 0;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: #5eead4;
        }

        .bubble-bg {
            position: absolute;
            pointer-events: none;
            opacity: 0.12;
        }

        .mobile-menu {
            display: none;
        }

        .mobile-menu.open {
            display: block;
            position: fixed;
            inset: 0;
            top: 64px;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            z-index: 50;
            padding: 2rem 1.5rem;
            overflow-y: auto;
        }

        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu.open {
                display: block;
            }
            .nav-search-desktop {
                display: none;
            }
        }

        @media (min-width: 1024px) {
            .mobile-menu-btn {
                display: none;
            }
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(5, 46, 43, 0.97) 0%, rgba(5, 46, 43, 0.88) 50%, rgba(5, 46, 43, 0.6) 100%);
        }

        .section-title-deco {
            position: relative;
            padding-left: 1rem;
        }

        .section-title-deco::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 75%;
            border-radius: 999px;
            background: linear-gradient(180deg, var(--primary-400), var(--primary-600));
        }

        .topic-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary-700);
            background: rgba(240, 253, 250, 0.8);
            border: 1px solid rgba(20, 184, 166, 0.35);
            border-radius: 999px;
            padding: 0.15rem 0.85rem;
            margin-right: 0.5rem;
            margin-bottom: 0.25rem;
        }

        .article-content {
            max-width: 720px;
            margin: 0 auto;
            line-height: 1.85;
            font-size: 1.02rem;
            color: var(--text-main);
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2.5rem 0 1rem;
            color: var(--text-main);
            border-left: 4px solid var(--primary-500);
            padding-left: 1rem;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 2rem 0 0.75rem;
            color: var(--text-main);
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--accent-500);
            background: #fff7ed;
            padding: 1rem 1.5rem;
            border-radius: 0 0.75rem 0.75rem 0;
            margin: 1.5rem 0;
            color: var(--text-secondary);
        }

        .article-content ul {
            padding-left: 1.5rem;
            margin: 1rem 0 1.5rem;
            list-style: disc;
        }

        .article-content ol {
            padding-left: 1.5rem;
            margin: 1rem 0 1.5rem;
            list-style: decimal;
        }

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

        .article-content code {
            background: #f1f5f9;
            padding: 0.2rem 0.5rem;
            border-radius: 0.375rem;
            font-size: 0.9em;
        }

        .article-content pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 1.5rem;
            border-radius: 0.75rem;
            overflow-x: auto;
            margin: 1.5rem 0;
            font-size: 0.9rem;
        }

        .form-error {
            border-color: #ef4444 !important;
            box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
        }

        .footer-bottom a {
            color: #94a3b8;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        ::selection {
            background-color: rgba(20, 184, 166, 0.2);
        }

        ::-webkit-scrollbar {
            width: 10px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }

        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 999px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }

        .search-box {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 999px;
            padding: 0.5rem 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary-400);
            box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.9rem;
            width: 140px;
            color: var(--text-main);
        }

        .search-box input::placeholder {
            color: #94a3b8;
        }

/* roulang page: category1 */
:root {
  --primary-50: #F0FDFA;
  --primary-500: #14B8A6;
  --primary-600: #0D9488;
  --primary-700: #0F766E;
  --primary-800: #115E59;
  --primary-900: #134E4A;
  --accent-400: #FB923C;
  --accent-500: #F97316;
  --accent-600: #EA580C;
  --accent-100: #FFEDD5;
  --bg-main: #F7FAFA;
  --bg-card: #FFFFFF;
  --text-main: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --dark-bg: #052E2B;
  --shadow-card: 0 4px 24px rgba(15, 118, 110, 0.06);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SFMono-Regular", monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary-700); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent-600); }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }

.container-x {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 640px) {
  .container-x { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 1024px) {
  .container-x { padding-left: 2rem; padding-right: 2rem; }
}

.header-glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  border-radius: 9999px;
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--accent-600);
  background: var(--primary-50);
}
.nav-link.active {
  color: var(--accent-600);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 1px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent-500);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--accent-500);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: 9999px;
  border: none;
  transition: background .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}
.btn-primary:hover {
  background: var(--accent-600);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(249, 115, 22, 0.35);
}
.btn-primary:active {
  transform: scale(.96);
}
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.25);
}

.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(4px);
  transition: background .2s, transform .15s, border-color .2s;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}
.btn-ghost-light:active {
  transform: scale(.96);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 0 14px;
  height: 40px;
  width: 200px;
  transition: border-color .2s, box-shadow .2s;
}
.search-box:focus-within {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12);
}
.search-box input {
  border: none;
  outline: none;
  font-size: 14px;
  width: 100%;
  background: transparent;
  color: var(--text-main);
}
.search-box input::placeholder {
  color: var(--text-muted);
}

.hero-section {
  background-color: var(--dark-bg);
  position: relative;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(5,46,43,0.95) 0%, rgba(5,46,43,0.75) 50%, rgba(19,78,74,0.55) 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}
.fade-in-down {
  animation: fadeDown .6s ease both;
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.timeline-item {
  position: relative;
  padding-left: 2rem;
}
.timeline-dot {
  position: absolute;
  left: -7px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.18);
}
.timeline-dot.is-end {
  background: var(--text-muted);
  box-shadow: 0 0 0 4px rgba(148, 163, 184, 0.15);
}
.timeline-dot.is-hot {
  background: var(--accent-500);
  box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.18);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-50);
  color: var(--primary-600);
  font-size: 18px;
  font-weight: 500;
  transition: transform .3s, background .3s, color .3s;
  flex-shrink: 0;
  font-style: normal;
  line-height: 1;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--accent-500);
  color: #fff;
}

.card-hover {
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(15, 118, 110, 0.08);
  border-color: var(--primary-400);
}

.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.mobile-menu.open {
  max-height: 420px;
}
.mobile-nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  border-radius: 12px;
  transition: background .2s, color .2s;
}
.mobile-nav-link:hover {
  background: var(--primary-50);
  color: var(--accent-600);
}
.mobile-nav-link.active {
  color: var(--accent-600);
  background: var(--primary-50);
}

.play-badge {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 46, 43, 0.35);
  opacity: 0;
  transition: opacity .3s;
}
.group:hover .play-badge {
  opacity: 1;
}
.play-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-700);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  transform: scale(0.8);
  transition: transform .3s;
}
.group:hover .play-circle {
  transform: scale(1);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .timeline-item { padding-left: 1.5rem; }
}

/* roulang page: article */
:root {
            --primary-50: #F0FDFA;
            --primary-400: #2DD4BF;
            --primary-500: #14B8A6;
            --primary-600: #0D9488;
            --primary-700: #0F766E;
            --primary-800: #115E59;
            --primary-900: #134E4A;
            --accent-100: #FFEDD5;
            --accent-500: #F97316;
            --accent-600: #EA580C;
            --bg: #F7FAFA;
            --card: #FFFFFF;
            --deep: #052E2B;
            --deep-2: #04201E;
            --text: #0F172A;
            --text-2: #475569;
            --text-3: #94A3B8;
            --border: #E2E8F0;
            --shadow-sm: 0 2px 8px rgba(15, 118, 110, 0.04);
            --shadow: 0 10px 30px rgba(15, 118, 110, 0.08);
            --shadow-lg: 0 20px 50px rgba(15, 118, 110, 0.14);
            --radius: 16px;
            --radius-lg: 24px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary-700);
            text-decoration: none;
            transition: color .25s, background .25s, box-shadow .25s, transform .25s, border-color .25s;
        }

        a:hover {
            color: var(--accent-600);
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        input {
            font-family: inherit;
        }

        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .header-glass {
            background: rgba(247, 250, 250, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        }

        .desktop-nav {
            gap: 4px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-2);
            position: relative;
            white-space: nowrap;
            transition: color .25s, background .25s;
        }

        .nav-link:hover {
            color: var(--accent-600);
            background: rgba(249, 115, 22, 0.06);
        }

        .nav-link.active {
            color: var(--accent-600);
            font-weight: 700;
            background: rgba(249, 115, 22, 0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 999px;
            background: var(--accent-500);
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 16px;
            width: 220px;
            transition: box-shadow .25s, border-color .25s;
        }

        .search-box:focus-within {
            border-color: var(--primary-500);
            box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.1);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            width: 100%;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent-500);
            color: #fff;
            font-weight: 600;
            border-radius: 999px;
            padding: 12px 24px;
            border: none;
            transition: background .25s, box-shadow .25s, transform .2s;
        }

        .btn-primary:hover {
            background: var(--accent-600);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(249, 115, 22, 0.3);
        }

        .btn-primary:active {
            transform: scale(0.96);
        }

        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.2);
        }

        .btn-primary.btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .hamburger-btn {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: #fff;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 90;
            background: rgba(5, 46, 43, 0.6);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s, visibility .3s;
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu-panel {
            background: #fff;
            width: 85%;
            max-width: 360px;
            height: 100%;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transform: translateX(-100%);
            transition: transform .35s ease;
            overflow-y: auto;
        }

        .mobile-menu.open .mobile-menu-panel {
            transform: translateX(0);
        }

        .mobile-menu-panel a:not(.btn-primary) {
            padding: 12px 16px;
            border-radius: 12px;
            font-weight: 600;
            color: var(--text);
            font-size: 16px;
        }

        .mobile-menu-panel a:not(.btn-primary):hover {
            background: var(--primary-50);
            color: var(--primary-700);
        }

        .article-hero {
            background-image: url('/assets/images/backpic/back-1.webp'), linear-gradient(135deg, #052E2B 0%, #0F766E 100%);
            background-size: cover, cover;
            background-position: center, center;
            background-repeat: no-repeat, no-repeat;
            color: #fff;
            padding: 160px 0 72px;
            position: relative;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(5, 46, 43, 0.76);
        }

        .article-hero .container-x {
            position: relative;
            z-index: 1;
            max-width: 1000px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb .current {
            color: rgba(255, 255, 255, 0.9);
        }

        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(20, 184, 166, 0.15);
            border: 1px solid rgba(20, 184, 166, 0.4);
            color: #5EEAD4;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .article-category-tag::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #F87171;
            animation: pulse-dot 1.6s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.6); }
            50% { box-shadow: 0 0 0 6px rgba(248, 113, 113, 0); }
        }

        .article-hero h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 20px;
            max-width: 760px;
        }

        .article-hero .hero-sub {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            max-width: 600px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

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

        .article-meta .meta-item svg {
            width: 15px;
            height: 15px;
            opacity: 0.7;
        }

        .article-meta a {
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
        }

        .article-meta a:hover {
            color: #fff;
        }

        .article-wrap {
            padding: 48px 0 72px;
        }

        .article-card {
            max-width: 1000px;
            margin: 0 auto;
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 28px;
            box-shadow: 0 20px 50px rgba(15, 118, 110, 0.08);
            padding: 56px 48px;
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            font-size: 16.5px;
            line-height: 1.85;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 40px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary-500);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 28px 0 12px;
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body a {
            color: var(--primary-600);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body ul li::marker {
            color: var(--primary-500);
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent-500);
            background: var(--accent-100);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            color: var(--text-2);
            margin: 24px 0;
            font-style: normal;
        }

        .article-body img {
            border-radius: 16px;
            margin: 24px 0;
            box-shadow: var(--shadow);
        }

        .article-body code {
            background: #F1F5F9;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            font-family: ui-monospace, "Cascadia Code", "JetBrains Mono", monospace;
        }

        .article-body pre {
            background: #0F172A;
            color: #E2E8F0;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.6;
        }

        .article-body pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-tags {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 32px 0 0;
            border-top: 1px solid var(--border);
            margin-top: 48px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            background: var(--primary-50);
            color: var(--primary-700);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid rgba(20, 184, 166, 0.15);
            transition: all .2s;
        }

        .tag:hover {
            background: #fff;
            border-color: var(--primary-500);
            color: var(--primary-600);
        }

        .article-share {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
            font-size: 14px;
            color: var(--text-3);
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-2);
            font-size: 13px;
            font-weight: 500;
            transition: all .2s;
        }

        .share-btn:hover {
            border-color: var(--primary-500);
            color: var(--primary-600);
            background: var(--primary-50);
        }

        .article-pager {
            max-width: 1000px;
            margin: 24px auto 0;
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 16px;
            align-items: center;
        }

        .pager-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 12px 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-2);
            transition: all .25s;
        }

        .pager-link:hover {
            border-color: var(--primary-500);
            color: var(--primary-700);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .pager-back {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-50);
            border: 1px solid rgba(20, 184, 166, 0.2);
            border-radius: 999px;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-700);
            transition: all .25s;
        }

        .pager-back:hover {
            background: var(--primary-500);
            color: #fff;
        }

        .related-section {
            background: #F0FDFA;
            padding: 72px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        .section-header p {
            color: var(--text-3);
            margin-top: 8px;
            font-size: 15px;
        }

        .related-card {
            background: #fff;
            border-radius: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            overflow: hidden;
            transition: transform .3s, box-shadow .3s;
            display: block;
        }

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

        .related-card .cover-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--primary-50);
        }

        .related-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }

        .related-card:hover .cover-wrap img {
            transform: scale(1.05);
        }

        .duration {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.72);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-family: ui-monospace, "Cascadia Code", "JetBrains Mono", monospace;
        }

        .related-card .card-body {
            padding: 20px;
        }

        .related-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            transition: color .25s;
        }

        .related-card:hover h3 {
            color: var(--accent-600);
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-3);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-date {
            font-size: 13px;
            color: var(--text-3);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .cta-section {
            background: linear-gradient(135deg, #0F766E 0%, #04201E 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            margin-bottom: 32px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 8px;
            border-radius: 999px;
        }

        .subscribe-form input {
            flex: 1;
            border: none;
            outline: none;
            background: transparent;
            color: #fff;
            font-size: 15px;
            padding: 10px 16px;
            border-radius: 999px;
            min-width: 0;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .subscribe-form button {
            background: var(--accent-500);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 10px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: background .25s, transform .2s;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: var(--accent-600);
            transform: scale(1.02);
        }

        .not-found {
            text-align: center;
            padding: 80px 24px 100px;
            max-width: 600px;
            margin: 0 auto;
        }

        .not-found-icon {
            font-size: 64px;
            margin-bottom: 20px;
            line-height: 1;
        }

        .not-found h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-3);
            margin-bottom: 24px;
        }

        .footer {
            background: var(--deep-2);
            color: #94A3B8;
            padding: 56px 0 24px;
        }

        .footer-tagline {
            color: #64748B;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #94A3B8;
            transition: all .25s;
        }

        .footer-social a:hover {
            color: #fff;
            border-color: var(--primary-400);
            background: rgba(20, 184, 166, 0.1);
        }

        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }

            .nav-search-desktop {
                display: none;
            }

            .hamburger-btn {
                display: flex;
            }

            .article-hero h1 {
                font-size: 32px;
            }

            .article-card {
                padding: 40px 28px;
            }
        }

        @media (max-width: 767px) {
            .container-x {
                padding: 0 16px;
            }

            .article-hero {
                padding: 140px 0 48px;
            }

            .article-hero h1 {
                font-size: 28px;
            }

            .article-card {
                padding: 28px 20px;
                border-radius: 20px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.8;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .article-pager {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .pager-link,
            .pager-back {
                justify-content: center;
            }

            .subscribe-form {
                flex-direction: column;
                border-radius: 20px;
            }

            .subscribe-form button {
                width: 100%;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

            .section-header h2 {
                font-size: 26px;
            }

            .related-section {
                padding: 56px 0;
            }
        }

/* roulang page: category2 */
:root {
            --primary-500: #14B8A6;
            --primary-600: #0D9488;
            --primary-700: #0F766E;
            --primary-800: #115E59;
            --primary-900: #134E4A;
            --primary-50: #F0FDFA;
            --accent-500: #F97316;
            --accent-600: #EA580C;
            --ink: #0F172A;
            --ink-2: #475569;
            --ink-3: #94A3B8;
            --border: #E2E8F0;
            --bg: #F7FAFA;
            --dark: #052E2B;
            --radius: 1rem;
            --shadow: 0 8px 30px rgba(15, 118, 110, 0.08);
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SFMono-Regular", monospace;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            background-color: var(--bg);
            color: var(--ink);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container-x {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-x {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-x {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .header-glass {
            background-color: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--ink-2);
            border-radius: 999px;
            position: relative;
            transition: color 0.25s ease, background 0.25s ease;
        }
        .nav-link:hover {
            color: var(--accent-600);
            background: rgba(249, 115, 22, 0.06);
        }
        .nav-link.active {
            color: var(--accent-600);
            background: rgba(249, 115, 22, 0.08);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 2px;
            width: 20px;
            height: 3px;
            border-radius: 99px;
            background: var(--accent-500);
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0.4rem 0.85rem;
            transition: border-color 0.25s, box-shadow 0.25s;
            width: 200px;
        }
        .search-box:focus-within {
            border-color: var(--primary-500);
            box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12);
        }
        .search-box input {
            font-size: 0.82rem;
            width: 100%;
            color: var(--ink);
            background: transparent;
        }
        .search-box input::placeholder {
            color: var(--ink-3);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.35rem;
            background: var(--accent-500);
            color: #fff;
            font-weight: 700;
            border-radius: 999px;
            padding: 0.65rem 1.2rem;
            font-size: 0.9rem;
            transition: background 0.25s, transform 0.2s, box-shadow 0.25s;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--accent-600);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(249, 115, 22, 0.3);
        }
        .btn-primary:active {
            transform: scale(0.95);
        }
        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.35rem;
            background: transparent;
            color: var(--primary-700);
            border: 1.5px solid var(--primary-600);
            font-weight: 600;
            border-radius: 999px;
            padding: 0.65rem 1.2rem;
            font-size: 0.9rem;
            transition: background 0.25s, transform 0.2s;
        }
        .btn-outline:hover {
            background: var(--primary-50);
            transform: translateY(-2px);
        }
        .hero-pattern {
            background-color: var(--dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
        }
        .hero-pattern::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(110deg, rgba(5, 46, 43, 0.96) 20%, rgba(5, 46, 43, 0.78) 60%, rgba(5, 46, 43, 0.55) 100%);
            z-index: -1;
        }
        .info-card {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 1.25rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(15, 118, 110, 0.1);
        }
        .timeline-item {
            position: relative;
            padding-left: 2rem;
            padding-bottom: 1.6rem;
            border-left: 1px solid #E2E8F0;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -5px;
            top: 4px;
            width: 9px;
            height: 9px;
            border-radius: 999px;
            background: var(--primary-500);
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
        }
        .timeline-item:hover::before {
            background: var(--accent-500);
            box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.18);
        }
        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary-50);
            color: var(--primary-700);
            border: 1px solid rgba(20, 184, 166, 0.2);
            white-space: nowrap;
        }
        .cover-card {
            position: relative;
            border-radius: 1.25rem;
            overflow: hidden;
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.7);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .cover-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 40px rgba(15, 118, 110, 0.12);
        }
        .cover-card .cover-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .cover-card:hover .cover-img {
            transform: scale(1.04);
        }
        .play-mask {
            position: absolute;
            inset: 0;
            background: rgba(5, 46, 43, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .cover-card:hover .play-mask {
            opacity: 1;
        }
        .faq-item {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 1rem;
            margin-bottom: 0.8rem;
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .faq-item.open {
            border-color: rgba(20, 184, 166, 0.4);
            box-shadow: 0 8px 24px rgba(15, 118, 110, 0.08);
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.2rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            text-align: left;
            border-radius: 1rem;
        }
        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 999px;
            background: var(--primary-50);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-700);
            font-size: 1.1rem;
            transition: transform 0.3s ease, background 0.3s, color 0.3s;
            flex-shrink: 0;
            margin-left: 0.8rem;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent-500);
            color: #fff;
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.2rem;
            color: var(--ink-2);
            font-size: 0.92rem;
            line-height: 1.75;
        }
        .faq-item.open .faq-a {
            max-height: 260px;
            padding-bottom: 1.1rem;
        }
        .stat-num {
            font-family: var(--font-mono);
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }
        .mobile-menu {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            transform: translateY(-110%);
            transition: transform 0.35s ease;
            z-index: 40;
            padding: 1.2rem 1.2rem 1.6rem;
        }
        .mobile-menu.open {
            transform: translateY(0);
        }
        .mobile-menu .m-nav-link {
            display: block;
            padding: 0.7rem 0.6rem;
            font-weight: 600;
            color: var(--ink-2);
            border-radius: 0.75rem;
            transition: background 0.2s, color 0.2s;
        }
        .mobile-menu .m-nav-link:hover {
            background: var(--primary-50);
            color: var(--primary-700);
        }
        .mobile-menu .m-nav-link.active {
            color: var(--accent-600);
            background: rgba(249, 115, 22, 0.08);
        }
        .subscribe-panel {
            background: linear-gradient(120deg, #0D9488 0%, #115E59 60%, #134E4A 100%);
            position: relative;
            border-radius: 1.75rem;
            overflow: hidden;
        }
        .subscribe-panel::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
        }
        .subscribe-panel::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 20px;
            width: 280px;
            height: 160px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
        }
        .footer-link {
            color: #94A3B8;
            font-size: 0.85rem;
            transition: color 0.25s, padding-left 0.25s;
            display: inline-block;
        }
        .footer-link:hover {
            color: #F0FDFA;
            padding-left: 3px;
        }
        .num-tab {
            font-family: var(--font-mono);
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }
        ::selection {
            background: rgba(20, 184, 166, 0.2);
        }
        ::-webkit-scrollbar {
            width: 10px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #F1F5F9;
        }
        ::-webkit-scrollbar-thumb {
            background: #CBD5E1;
            border-radius: 99px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #94A3B8;
        }
        @media (max-width: 1024px) {
            .desktop-nav {
                display: none;
            }
            .nav-search-desktop {
                display: none;
            }
            .nav-login-desktop {
                display: none;
            }
        }
        @media (min-width: 1025px) {
            .mobile-menu-btn {
                display: none;
            }
        }

/* roulang page: category3 */
:root {
            --primary-50: #F0FDFA;
            --primary-100: #CCFBF1;
            --primary-200: #99F6E4;
            --primary-300: #5EEAD4;
            --primary-400: #2DD4BF;
            --primary-500: #14B8A6;
            --primary-600: #0D9488;
            --primary-700: #0F766E;
            --primary-800: #115E59;
            --primary-900: #134E4A;
            --accent-50: #FFF7ED;
            --accent-100: #FFEDD5;
            --accent-200: #FED7AA;
            --accent-300: #FDBA74;
            --accent-400: #FB923C;
            --accent-500: #F97316;
            --accent-600: #EA580C;
            --accent-700: #C2410C;
            --bg-light: #F7FAFA;
            --text-main: #0F172A;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border-color: #E2E8F0;
            --dark-bg: #052E2B;
            --radius-card: 1rem;
            --shadow-card: 0 4px 20px rgba(15, 118, 110, 0.06);
        }

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

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

        img { max-width: 100%; display: block; }
        a { color: var(--primary-700); text-decoration: none; transition: color .3s ease; }
        a:hover { color: var(--accent-600); }
        input, button, textarea { font-family: inherit; }
        ul, ol { list-style: none; }

        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        @media (min-width: 640px) { .container-x { padding: 0 1.5rem; } }
        @media (min-width: 1024px) { .container-x { padding: 0 2rem; } }

        .header-glass {
            background: rgba(255, 255, 255, .88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, .7);
            box-shadow: 0 1px 12px rgba(15, 118, 110, .04);
        }

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: .5rem .9rem;
            font-size: .9375rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 9999px;
            transition: color .3s ease, background .3s ease;
            white-space: nowrap;
        }
        .nav-link:hover { color: var(--accent-600); background: var(--primary-50); }
        .nav-link.active { color: var(--primary-700); }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            background: var(--accent-500);
            border-radius: 999px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .45rem;
            background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
            color: #fff;
            font-weight: 700;
            border-radius: 9999px;
            padding: .72rem 1.6rem;
            transition: all .3s ease;
            box-shadow: 0 4px 14px rgba(249, 115, 22, .22);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--accent-600), var(--accent-700));
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(249, 115, 22, .28);
            color: #fff;
        }
        .btn-primary:active { transform: scale(.96); }
        .btn-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(249, 115, 22, .2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .45rem;
            background: transparent;
            color: var(--primary-700);
            font-weight: 600;
            border: 1.5px solid var(--primary-600);
            border-radius: 9999px;
            padding: .65rem 1.4rem;
            transition: all .3s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: var(--primary-50);
            color: var(--primary-800);
            transform: translateY(-2px);
        }
        .btn-outline:active { transform: scale(.97); }

        .search-box {
            display: flex;
            align-items: center;
            gap: .5rem;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 9999px;
            padding: .42rem 1rem;
            transition: border-color .3s ease, box-shadow .3s ease;
        }
        .search-box:focus-within {
            border-color: var(--primary-500);
            box-shadow: 0 0 0 3px rgba(20, 184, 166, .1);
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: .875rem;
            color: var(--text-main);
            width: 8.5rem;
        }
        .search-box input::placeholder { color: var(--text-muted); }

        .card {
            background: #fff;
            border: 1px solid rgba(226, 232, 240, .8);
            border-radius: var(--radius-card);
            transition: all .3s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 14px 28px rgba(15, 118, 110, .08);
            border-color: var(--primary-300);
        }

        .hero-bg {
            background-color: var(--dark-bg);
            background-image:
                linear-gradient(130deg, rgba(4, 32, 30, .94) 10%, rgba(13, 78, 74, .82) 60%, rgba(19, 78, 74, .72)),
                url('/assets/images/backpic/back-1.webp');
            background-position: center;
            background-size: cover;
        }

        .countdown-num {
            font-family: ui-monospace, "Cascadia Code", "JetBrains Mono", "SFMono-Regular", monospace;
            font-feature-settings: "tnum";
            font-weight: 800;
        }

        .timeline-item {
            position: relative;
            padding-left: 2rem;
            padding-bottom: 2rem;
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: .4rem;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary-500);
            border: 3px solid var(--primary-100);
            box-shadow: 0 0 0 3px rgba(20, 184, 166, .12);
        }
        .timeline-item::after {
            content: "";
            position: absolute;
            left: 5px;
            top: 1.6rem;
            bottom: -.5rem;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary-200), transparent);
        }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-item:last-child::after { display: none; }

        .faq-item {
            background: rgba(255, 255, 255, .85);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 1.1rem 1.4rem;
            transition: all .3s ease;
            cursor: pointer;
        }
        .faq-item:hover { border-color: var(--primary-300); }
        .faq-item.open {
            background: var(--primary-50);
            border-color: var(--primary-200);
        }
        .faq-icon {
            transition: transform .35s ease;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-500);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-top: .8rem;
        }

        .img-zoom { overflow: hidden; }
        .img-zoom img { transition: transform .6s ease; }
        .img-zoom:hover img { transform: scale(1.05); }

        .reveal {
            opacity: 0;
            transform: translateY(28px);
            transition: opacity .6s ease, transform .6s ease;
        }
        .reveal.in-view { opacity: 1; transform: translateY(0); }

        .menu-toggle { display: none; }
        @media (max-width: 1023px) {
            .desktop-nav { display: none !important; }
            .nav-search-desktop { display: none !important; }
            .menu-toggle { display: flex; }
        }
        @media (min-width: 1024px) {
            .menu-toggle { display: none; }
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            z-index: 49;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 16px 32px rgba(15, 118, 110, .1);
            padding: 1rem 1.25rem 1.5rem;
        }
        .mobile-menu.open { display: block; }
        @media (max-width: 1023px) {
            .mobile-menu { top: 64px; }
        }

        .empty-state svg { opacity: .5; }

        ::-webkit-scrollbar { width: 8px; height: 6px; }
        ::-webkit-scrollbar-track { background: #f1f5f9; }
        ::-webkit-scrollbar-thumb { background: var(--primary-300); border-radius: 8px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--primary-500); }

        @keyframes pulseDot {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(249, 115, 22, .5); }
            50% { opacity: .75; box-shadow: 0 0 0 7px rgba(249, 115, 22, 0); }
        }
        .live-dot { animation: pulseDot 2s infinite; }

        @keyframes floatY {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-12px); }
        }
        .float-y { animation: floatY 5s ease-in-out infinite; }