/* roulang page: index */
:root {
  --bg-base: #070b14;
  --bg-deep: #05080f;
  --bg-raised: #0b1220;
  --bg-card: rgba(255, 255, 255, 0.04);
  --primary: #2dd4bf;
  --primary-bright: #22d3ee;
  --secondary: #a78bfa;
  --amber: #fbbf24;
  --border-soft: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.1);
  --text-main: #e2e8f0;
  --text-dim: #94a3b8;
  --text-faint: #475569;
  --radius: 16px;
  --radius-btn: 9999px;
  --glow: 0 0 30px rgba(45, 212, 191, 0.38);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

/* ===== 通用玻璃卡片 ===== */
.glass-card {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 60%;
  height: 55%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent 62%);
  pointer-events: none;
  border-radius: var(--radius) 0 0 0;
  z-index: 1;
}
.glass-card.lens-right::before {
  left: auto;
  right: 0;
  background: linear-gradient(-135deg, rgba(255, 255, 255, 0.08), transparent 62%);
}
.glass-card.lens-h::before {
  width: 85%;
  height: 25%;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.06), transparent 70%);
}
.glass-card:hover {
  border-color: rgba(45, 212, 191, 0.4);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.3), 0 0 24px rgba(45, 212, 191, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, #2dd4bf, #22d3ee);
  color: #06231f;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  box-shadow: 0 0 30px rgba(45, 212, 191, 0.4), 0 6px 18px rgba(0, 0, 0, 0.35);
  transition: filter .2s ease, box-shadow .2s ease, transform .15s ease;
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 44px rgba(45, 212, 191, 0.55), 0 8px 22px rgba(0, 0, 0, 0.4);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(.97);
}
.btn-primary:focus-visible,
.btn-ghost:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid rgba(45, 212, 191, .7);
  outline-offset: 3px;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255, 255, 255, .22);
  background: rgba(255, 255, 255, .04);
  color: #e2e8f0;
  font-weight: 600;
  font-size: 15px;
  transition: border-color .2s, color .2s, background .2s, transform .15s;
}
.btn-ghost:hover {
  border-color: rgba(45, 212, 191, .7);
  color: #5eead4;
  background: rgba(45, 212, 191, .06);
}
.btn-ghost:active { transform: scale(.97); }
.btn-ghost[disabled],
.btn-primary[disabled] {
  opacity: .4;
  cursor: not-allowed;
  box-shadow: none;
}

/* ===== 标签 ===== */
.section-label {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 9999px;
  background: rgba(45, 212, 191, .08);
  border: 1px solid rgba(45, 212, 191, .22);
  color: #5eead4;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
}

/* ===== 渐变文字 ===== */
.text-gradient {
  background: linear-gradient(120deg, #2dd4bf, #22d3ee, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 11, 20, .82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-soft);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 20px;
  color: #fff;
  letter-spacing: .02em;
  line-height: 1.2;
}
.logo-mark .logo-icon {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: linear-gradient(135deg, #2dd4bf, #22d3ee);
  box-shadow: 0 0 14px rgba(45, 212, 191, .8);
  transform: rotate(45deg);
  flex-shrink: 0;
}
.logo-mark .logo-sub {
  color: rgba(255, 255, 255, .65);
  font-weight: 600;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 0;
  color: #94a3b8;
  font-size: 15px;
  font-weight: 600;
  transition: color .2s ease;
}
.nav-link:hover { color: #5eead4; }
.nav-link.is-active {
  color: #2dd4bf;
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  border-radius: 2px;
  background: #2dd4bf;
  box-shadow: 0 0 8px rgba(45, 212, 191, .7);
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 230px;
  height: 38px;
  padding: 0 14px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: border-color .2s, background .2s, width .25s;
}
.search-box:focus-within {
  border-color: rgba(45, 212, 191, .55);
  background: rgba(255, 255, 255, .1);
  width: 280px;
}
.search-box input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: #e2e8f0;
  font-size: 13px;
}
.search-box input::placeholder { color: #64748b; }
.search-box kbd {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 5px;
  background: rgba(255, 255, 255, .1);
  color: #94a3b8;
  white-space: nowrap;
}
.icon-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .04);
  color: #94a3b8;
  transition: color .2s, border-color .2s, background .2s;
}
.icon-btn:hover {
  color: #5eead4;
  border-color: rgba(45, 212, 191, .4);
  background: rgba(45, 212, 191, .08);
}
.icon-btn .dot {
  position: absolute;
  top: 8px;
  right: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fb7185;
  box-shadow: 0 0 6px rgba(251, 113, 133, .7);
}

/* ===== 倒计时条 ===== */
.countdown-bar {
  background: linear-gradient(90deg, rgba(45, 212, 191, .1), transparent, rgba(167, 139, 250, .1));
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}
.countdown-bar .pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2dd4bf;
  box-shadow: 0 0 10px rgba(45, 212, 191, .9);
  animation: pulse-glow 1.8s infinite;
}
@keyframes pulse-glow {
  0%, 100% { opacity: 1; box-shadow: 0 0 10px rgba(45, 212, 191, .9); }
  50% { opacity: .6; box-shadow: 0 0 4px rgba(45, 212, 191, .4); }
}

/* ===== Hero 背景 ===== */
.bg-grid {
  background-image:
    linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
  background-size: 44px 44px;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

/* ===== 图墙 ===== */
.masonry {
  columns: 2;
  column-gap: 20px;
}
.masonry > * {
  break-inside: avoid;
  margin-bottom: 20px;
}
@media (min-width: 1024px) {
  .masonry { columns: 3; }
}
.gallery-card {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .3);
}
.gallery-card img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform .35s ease;
}
.gallery-card:hover img {
  transform: scale(1.05);
}
.gallery-card .overlay {
  background: linear-gradient(to top, rgba(0, 0, 0, .82), rgba(0, 0, 0, .38) 55%, transparent);
  transition: opacity .3s;
}
.gallery-card .glass-tag {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .3s, transform .3s;
}
.gallery-card:hover .glass-tag {
  opacity: 1;
  transform: translateY(0);
}

/* ===== CTA 区 ===== */
.cta-banner {
  background:
    radial-gradient(ellipse at 12% 20%, rgba(45, 212, 191, .14), transparent 40%),
    radial-gradient(ellipse at 85% 80%, rgba(167, 139, 250, .14), transparent 42%),
    linear-gradient(115deg, #0e1b2e 0%, #161231 48%, #0f2233 100%);
}

/* ===== FAQ ===== */
.faq-item {
  transition: background .2s;
}
.faq-item.open {
  background: rgba(255, 255, 255, .03);
}
.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: #e2e8f0;
  transition: color .2s;
}
.faq-question:hover { color: #5eead4; }
.faq-question .faq-num {
  font-family: ui-monospace, monospace;
  font-size: 13px;
  font-weight: 700;
  color: rgba(45, 212, 191, .7);
  min-width: 24px;
}
.faq-question .faq-icon {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  color: #94a3b8;
  font-size: 18px;
  line-height: 1;
  transition: background .2s, color .2s, transform .25s;
}
.faq-item.open .faq-icon {
  color: #2dd4bf;
  background: rgba(45, 212, 191, .12);
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  padding: 0 24px;
  transition: max-height .35s ease, opacity .3s ease, margin-top .3s ease;
}
.faq-answer p {
  padding-bottom: 20px;
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.8;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #05080f;
  border-top: 1px solid rgba(255, 255, 255, .05);
}
.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 12px;
  letter-spacing: .02em;
}
.footer-link {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: #64748b;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-link:hover {
  color: #2dd4bf;
  padding-left: 4px;
}

/* ===== 空态 ===== */
.empty-icon {
  width: 120px;
  height: 120px;
}

/* ===== 通用工具 ===== */
.clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .search-box { display: none; }
  .hero-right { display: none; }
  .btn-primary, .btn-ghost { padding: 12px 22px; font-size: 14px; }
}

/* roulang page: article */
:root {
            --bg-base: #070b14;
            --bg-panel: #0b1220;
            --bg-panel-light: #0d1526;
            --bg-card: rgba(255, 255, 255, 0.05);
            --primary: #2dd4bf;
            --primary-light: #5eead4;
            --secondary: #a78bfa;
            --amber: #fbbf24;
            --rose: #fb7185;
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
            --text-subtle: rgba(255, 255, 255, 0.4);
            --border-light: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(45, 212, 191, 0.4);
            --radius-card: 1rem;
            --radius-btn: 9999px;
            --shadow-glow: 0 0 30px rgba(45, 212, 191, 0.35);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.25);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(7, 11, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }

        .logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2dd4bf, #a78bfa);
            box-shadow: 0 0 16px rgba(45, 212, 191, 0.45);
            position: relative;
            flex-shrink: 0;
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            inset: 5px;
            border-radius: 4px;
            background: rgba(7, 11, 20, 0.45);
        }

        .nav-link {
            position: relative;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            padding: 0.5rem 0.25rem;
            transition: color 0.2s ease;
        }

        .nav-link:hover {
            color: #2dd4bf;
        }

        .nav-link.is-active {
            color: #2dd4bf;
            font-weight: 600;
        }

        .nav-link.is-active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: #2dd4bf;
            box-shadow: 0 0 8px rgba(45, 212, 191, 0.6);
        }

        .search-box {
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 9999px;
            padding: 0.35rem 0.75rem 0.35rem 1rem;
            transition: all 0.2s ease;
        }

        .search-box:focus-within {
            border-color: rgba(45, 212, 191, 0.5);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
        }

        .search-input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 0.875rem;
            color: white;
            width: 120px;
        }

        .search-input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .search-kbd {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            padding: 2px 5px;
            background: rgba(255, 255, 255, 0.03);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2dd4bf, #22d3ee);
            color: #070b14;
            font-weight: 700;
            font-size: 0.875rem;
            padding: 0.625rem 1.25rem;
            border-radius: 9999px;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 0 30px rgba(45, 212, 191, 0.35);
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(45, 212, 191, 0.55);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-primary:focus-visible {
            outline: 2px solid #2dd4bf;
            outline-offset: 2px;
        }

        /* 面包屑 */
        .breadcrumb-area {
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .breadcrumb-link {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            transition: color 0.2s ease;
        }

        .breadcrumb-link:hover {
            color: #2dd4bf;
        }

        .breadcrumb-current {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 240px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* 文章 */
        .article-body {
            font-size: 1rem;
            line-height: 2rem;
            color: rgba(255, 255, 255, 0.82);
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: white;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.6rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            letter-spacing: 0.02em;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: white;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }

        .article-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }

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

        .article-body ul,
        .article-body ol {
            margin: 1rem 0 1.5rem;
            padding-left: 1.6rem;
        }

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

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

        .article-body li {
            margin-bottom: 0.35rem;
        }

        .article-body img {
            border-radius: 1rem;
            margin: 2rem auto;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .article-body blockquote {
            border-left: 4px solid #2dd4bf;
            background: rgba(45, 212, 191, 0.07);
            padding: 1rem 1.25rem;
            border-radius: 0 0.75rem 0.75rem 0;
            margin: 1.5rem 0;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
        }

        .article-body a {
            color: #2dd4bf;
            text-decoration: underline;
            text-underline-offset: 4px;
            transition: color 0.2s;
        }

        .article-body a:hover {
            color: #5eead4;
        }

        .article-body code {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0.15rem 0.4rem;
            border-radius: 0.35rem;
            font-size: 0.875em;
            color: #a78bfa;
            font-family: "SF Mono", Consolas, "Courier New", monospace;
        }

        .article-body pre {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 0.75rem;
            padding: 1.25rem;
            overflow-x: auto;
            margin: 1.5rem 0;
        }

        .article-body pre code {
            background: transparent;
            border: none;
            padding: 0;
            color: rgba(255, 255, 255, 0.8);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.9rem;
            border-radius: 0.75rem;
            overflow: hidden;
        }

        .article-body th,
        .article-body td {
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 0.65rem 0.9rem;
            text-align: left;
        }

        .article-body th {
            background: rgba(255, 255, 255, 0.05);
            color: white;
            font-weight: 600;
        }

        .article-body .callout,
        .article-body .notice-box {
            background: linear-gradient(135deg, rgba(45, 212, 191, 0.1), rgba(167, 139, 250, 0.08));
            border: 1px solid rgba(45, 212, 191, 0.25);
            border-radius: 0.75rem;
            padding: 1rem 1.25rem;
            margin: 1.5rem 0;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
        }

        .article-body .callout strong,
        .article-body .notice-box strong {
            color: #2dd4bf;
        }

        /* 标签 */
        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 0.25rem 0.8rem;
            border-radius: 9999px;
            transition: all 0.2s ease;
        }

        .badge:hover {
            border-color: rgba(45, 212, 191, 0.4);
            color: #2dd4bf;
        }

        /* 相关推荐卡片 */
        .reco-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 1rem;
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.75rem;
        }

        .reco-card:hover {
            border-color: rgba(45, 212, 191, 0.35);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            background: rgba(255, 255, 255, 0.06);
        }

        .reco-card-thumb {
            width: 96px;
            height: 72px;
            border-radius: 0.65rem;
            object-fit: cover;
            flex-shrink: 0;
        }

        /* 页脚 */
        .site-footer {
            background: #05080f;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            margin-top: 4rem;
        }

        .footer-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: white;
            margin-bottom: 0.75rem;
        }

        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            padding: 0.25rem 0;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: #2dd4bf;
        }

        /* 返回链接 */
        .back-link {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.45);
            transition: color 0.2s ease;
        }

        .back-link:hover {
            color: #2dd4bf;
        }

        /* 移动端适配 */
        @media (max-width: 1024px) {
            .search-input {
                width: 90px;
            }
        }

        @media (max-width: 768px) {
            .article-body {
                font-size: 0.95rem;
                line-height: 1.85rem;
            }

            .article-body h2 {
                font-size: 1.3rem;
            }

            .article-body h3 {
                font-size: 1.15rem;
            }

            .breadcrumb-current {
                max-width: 140px;
            }

            .reco-card {
                padding: 0.6rem;
            }

            .reco-card-thumb {
                width: 80px;
                height: 60px;
            }
        }

        @media (max-width: 480px) {
            .reco-card-thumb {
                width: 72px;
                height: 56px;
            }

            .btn-primary {
                padding: 0.55rem 1rem;
                font-size: 0.8rem;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
  :root {
    --bg-primary: #070b14;
    --bg-secondary: #0b1220;
    --bg-tertiary: #0d1526;
    --accent: #2dd4bf;
    --accent-secondary: #22d3ee;
    --violet-accent: #a78bfa;
    --amber: #fbbf24;
    --danger: #fb7185;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-glass: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glow-primary: 0 0 30px rgba(45, 212, 191, 0.4);
    --radius-card: 1rem;
    --radius-btn: 9999px;
  }

  /* ========== 基础 Reset ========== */
  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

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

  button,
  input {
    font-family: inherit;
  }

  /* ========== 通用容器 ========== */
  .container {
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

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

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

  /* ========== 导航栏 ========== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(7, 11, 20, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1rem;
  }

  .logo-mark {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 900;
    font-size: 1.25rem;
    color: #fff;
    letter-spacing: 0.02em;
    flex-shrink: 0;
  }

  .logo-icon {
    position: relative;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(45, 212, 191, 0.85), rgba(34, 211, 238, 0.65));
    box-shadow: 0 0 18px rgba(45, 212, 191, 0.45);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .logo-icon::after {
    content: "";
    width: 14px;
    height: 14px;
    background: #070b14;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    display: block;
  }

  .logo-sub {
    color: rgba(255, 255, 255, 0.62);
    font-weight: 800;
  }

  .nav-link {
    position: relative;
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(226, 232, 240, 0.75);
    padding: 0.35rem 0.15rem;
    transition: color 0.2s ease;
    white-space: nowrap;
  }

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

  .nav-link.is-active {
    color: var(--accent);
  }

  .nav-link.is-active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    box-shadow: 0 0 10px rgba(45, 212, 191, 0.6);
  }

  /* ========== 搜索框 ========== */
  .search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 9999px;
    padding: 0.45rem 0.9rem;
    transition: all 0.25s ease;
  }

  .search-box:focus-within {
    border-color: rgba(45, 212, 191, 0.5);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
  }

  .search-box input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.85rem;
    width: 150px;
    transition: width 0.25s ease;
  }

  .search-box input::placeholder {
    color: var(--text-muted);
  }

  .search-box input:focus {
    width: 190px;
  }

  .cmd-key {
    font-size: 0.7rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 1px 5px;
    font-family: ui-monospace, SFMono-Regular, monospace;
    white-space: nowrap;
  }

  .icon-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    flex-shrink: 0;
  }

  .icon-btn:hover {
    color: var(--accent);
    border-color: rgba(45, 212, 191, 0.35);
  }

  .icon-btn .dot {
    position: absolute;
    top: 8px;
    right: 9px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--danger);
    box-shadow: 0 0 6px rgba(251, 113, 133, 0.8);
  }

  /* ========== 按钮体系 ========== */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #2dd4bf, #22d3ee);
    color: #06231f;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.65rem 1.4rem;
    border-radius: 9999px;
    border: none;
    cursor: pointer;
    box-shadow: 0 0 24px rgba(45, 212, 191, 0.35);
    transition: all 0.25s ease;
    white-space: nowrap;
  }

  .btn-primary:hover {
    box-shadow: 0 0 36px rgba(45, 212, 191, 0.55);
    transform: translateY(-1px);
    filter: brightness(1.08);
  }

  .btn-primary:active {
    transform: scale(0.97);
    filter: brightness(0.95);
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.04);
    color: rgba(241, 245, 249, 0.9);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.65rem 1.4rem;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
  }

  .btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(45, 212, 191, 0.06);
  }

  .btn-secondary:active {
    transform: scale(0.97);
  }

  /* ========== 玻璃卡片 ========== */
  .glass-card {
    position: relative;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1rem;
    box-shadow: 0 20px 40px -18px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    transition: all 0.3s ease;
    overflow: hidden;
  }

  .glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 55%;
    height: 55%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.02) 60%, transparent);
    pointer-events: none;
    border-radius: 1rem 0 0 0;
  }

  .glass-card.glass-r::before {
    left: auto;
    right: 0;
    background: linear-gradient(225deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.02) 60%, transparent);
    border-radius: 0 1rem 0 0;
  }

  .glass-card.glass-c::before {
    left: 10%;
    top: -10%;
    width: 80%;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent);
    border-radius: 50%;
  }

  .glass-card:hover {
    border-color: rgba(45, 212, 191, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 24px 48px -16px rgba(0, 0, 0, 0.75), 0 0 24px rgba(45, 212, 191, 0.08);
  }

  /* ========== Hero 区域 ========== */
  .hero-category {
    position: relative;
    overflow: hidden;
    background-color: var(--bg-primary);
  }

  .hero-category .bg-layer {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: 0.4;
  }

  .hero-category .overlay-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(7, 11, 20, 0.96) 30%, rgba(7, 11, 20, 0.72) 60%, rgba(7, 11, 20, 0.4));
  }

  .hero-category .hero-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  }

  .hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(45, 212, 191, 0.1);
    border: 1px solid rgba(45, 212, 191, 0.25);
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.3rem 0.9rem;
    border-radius: 9999px;
    letter-spacing: 0.04em;
  }

  .hero-badge .pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: pulse 1.6s ease infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.82); }
  }

  /* ========== 筛选栏 ========== */
  .filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
  }

  .filter-btn {
    padding: 0.5rem 1.2rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
  }

  .filter-btn:hover {
    color: var(--accent);
    border-color: rgba(45, 212, 191, 0.35);
  }

  .filter-btn.is-active {
    color: #06231f;
    background: linear-gradient(135deg, #2dd4bf, #22d3ee);
    border-color: transparent;
    box-shadow: 0 0 18px rgba(45, 212, 191, 0.35);
    font-weight: 700;
  }

  /* ========== 活动列表大卡 ========== */
  .activity-card {
    display: flex;
    background: rgba(255, 255, 255, 0.035);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 1.2rem;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
  }

  .activity-card:hover {
    border-color: rgba(45, 212, 191, 0.3);
    box-shadow: 0 24px 50px -18px rgba(0, 0, 0, 0.75), 0 0 26px rgba(45, 212, 191, 0.06);
    transform: translateY(-2px);
  }

  .activity-thumb {
    flex: 0 0 260px;
    min-height: 190px;
    position: relative;
    overflow: hidden;
  }

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

  .activity-card:hover .activity-thumb img {
    transform: scale(1.05);
  }

  .activity-thumb .thumb-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.22rem 0.7rem;
    border-radius: 9999px;
    color: #fff;
  }

  .thumb-tag.tag-active {
    background: rgba(45, 212, 191, 0.82);
    box-shadow: 0 0 14px rgba(45, 212, 191, 0.4);
  }

  .thumb-tag.tag-soon {
    background: rgba(167, 139, 250, 0.82);
    box-shadow: 0 0 14px rgba(167, 139, 250, 0.35);
  }

  .thumb-tag.tag-end {
    background: rgba(251, 113, 133, 0.75);
  }

  .activity-info {
    flex: 1;
    padding: 1.5rem 1.8rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.6rem;
  }

  .activity-info h3 {
    font-size: 1.25rem;
    font-weight: 800;
    color: #fff;
    margin: 0;
    line-height: 1.4;
  }

  .activity-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.6rem 1rem;
    font-size: 0.78rem;
    color: var(--text-muted);
  }

  .activity-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
  }

  .activity-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .activity-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.3rem;
  }

  .activity-actions .btn-primary,
  .activity-actions .btn-secondary {
    padding: 0.45rem 1.2rem;
    font-size: 0.82rem;
  }

  .activity-actions .link-arrow {
    font-size: 0.82rem;
    color: var(--text-secondary);
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
  }

  .activity-actions .link-arrow:hover {
    color: var(--accent);
  }

  .activity-actions .link-arrow .arrow {
    transition: transform 0.25s ease;
  }

  .activity-actions .link-arrow:hover .arrow {
    transform: translateX(4px);
  }

  @media (max-width: 768px) {
    .activity-card {
      flex-direction: column;
    }
    .activity-thumb {
      flex: none;
      min-height: 160px;
    }
  }

  /* ========== 流程步骤 ========== */
  .process-item {
    position: relative;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 1.2rem;
    padding: 2rem 1.5rem 1.5rem;
    transition: all 0.3s ease;
    overflow: hidden;
  }

  .process-item:hover {
    border-color: rgba(45, 212, 191, 0.3);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-3px);
  }

  .process-num {
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-size: 2.4rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--violet-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    opacity: 0.75;
  }

  .process-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin: 1rem 0 0.4rem;
  }

  .process-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
  }

  /* ========== 权益卖点 ========== */
  .benefit-card {
    position: relative;
    padding: 1.8rem 1.5rem;
  }

  .benefit-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: rgba(45, 212, 191, 0.1);
    border: 1px solid rgba(45, 212, 191, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1rem;
  }

  .benefit-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 0.4rem;
  }

  .benefit-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin: 0;
  }

  /* ========== FAQ ========== */
  .faq-wrap {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 1.5rem;
    overflow: hidden;
  }

  .faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background 0.2s ease;
  }

  .faq-item:last-child {
    border-bottom: none;
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    text-align: left;
    transition: color 0.2s ease;
  }

  .faq-question:hover {
    color: var(--accent);
  }

  .faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
  }

  .faq-icon svg {
    transition: transform 0.3s ease;
  }

  .faq-item.open .faq-icon {
    background: rgba(45, 212, 191, 0.2);
  }

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

  .faq-item.open .faq-question {
    color: var(--accent);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 1.5rem;
  }

  .faq-item.open .faq-answer {
    max-height: 300px;
    padding-bottom: 1.2rem;
  }

  .faq-answer p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
  }

  /* ========== CTA 横幅 ========== */
  .cta-banner {
    position: relative;
    border-radius: 1.5rem;
    overflow: hidden;
    background: linear-gradient(120deg, #0b1e2d 0%, #131b33 50%, #1b1538 100%);
    border: 1px solid rgba(45, 212, 191, 0.15);
  }

  .cta-banner .cta-glow-1 {
    position: absolute;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(45, 212, 191, 0.18);
    filter: blur(90px);
    top: -120px;
    right: 10%;
    pointer-events: none;
  }

  .cta-banner .cta-glow-2 {
    position: absolute;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(167, 139, 250, 0.15);
    filter: blur(80px);
    bottom: -100px;
    left: 5%;
    pointer-events: none;
  }

  .cta-banner .cta-content {
    position: relative;
    z-index: 2;
  }

  /* ========== 页脚 ========== */
  .site-footer {
    background: #05080f;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    margin-top: auto;
  }

  .footer-link {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
  }

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

  .footer-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.8rem;
  }

  /* ========== 响应式 ========== */
  @media (max-width: 1024px) {
    .activity-thumb {
      flex-basis: 220px;
    }
  }

  @media (max-width: 640px) {
    .header-inner {
      height: 64px;
      gap: 0.5rem;
    }
    .activity-info {
      padding: 1.2rem;
    }
    .activity-actions .btn-secondary {
      display: none;
    }
    .hero-category .overlay-gradient {
      background: linear-gradient(0deg, rgba(7, 11, 20, 0.97) 20%, rgba(7, 11, 20, 0.75));
    }
  }