/* roulang page: index */
:root {
  --bg: #0C0C0E;
  --bg-deep: #08080A;
  --bg-alt: #16161A;
  --bg-alt2: #111114;
  --text: #F2F0EA;
  --text-sec: #A0A0A6;
  --text-dim: #6C6C70;
  --border: #26262B;
  --border-light: #3A3A40;
  --accent: #00D3A8;
  --accent-hover: #22E6BC;
  --accent-active: #00B98E;
  --amber: #E8B55C;
  --error: #E55342;
  --success: #3DD68C;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 12px 32px rgba(0,0,0,0.35);
  --space: 96px;
  --font: "PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; object-fit: cover; }
a { color: var(--text); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent); }
ul,ol { list-style: none; }
button { font-family: var(--font); border: none; background: none; cursor: pointer; color: inherit; }
input { font-family: var(--font); }
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
@media (max-width: 639px) {
  .grid-container { padding-left: 16px; padding-right: 16px; }
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 639px) {
  .container { padding: 0 16px; }
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 999px; font-size: 15px; font-weight: 600;
  line-height: 1; transition: all .25s ease; text-align: center; gap: 8px;
  border: 1px solid transparent; letter-spacing: .01em;
}
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { background: var(--accent-hover); color: var(--bg); transform: translateY(-1px); filter: brightness(1.05); }
.btn-primary:active { background: var(--accent-active); transform: translateY(0); filter: brightness(.92); }
.btn-secondary { background: transparent; border-color: var(--border-light); color: var(--text); }
.btn-secondary:hover { border-color: var(--text); background: rgba(242,240,234,.04); color: var(--text); }
.btn-secondary:active { background: rgba(242,240,234,.1); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.section-header { margin-bottom: 48px; }
.section-tag {
  font-size: 13px; color: var(--accent); text-transform: uppercase;
  letter-spacing: .12em; font-weight: 600; margin-bottom: 14px; display: inline-block;
}
.section-header h2 {
  font-size: clamp(26px, 3.2vw, 40px); font-weight: 600; letter-spacing: -.01em;
  line-height: 1.3; color: var(--text); margin-bottom: 12px;
}
.section-header p { color: var(--text-sec); font-size: 16px; max-width: 560px; line-height: 1.7; }
.tag {
  display: inline-block; padding: 4px 12px; border: 1px solid var(--border);
  border-radius: 999px; font-size: 12px; color: var(--text-sec); background: rgba(255,255,255,.02);
}
.tag-accent { border-color: rgba(0,211,168,.4); color: var(--accent); }
.section { padding: 96px 0; }
@media (max-width: 1023px) {
  .section { padding: 72px 0; }
}
@media (max-width: 639px) {
  .section { padding: 48px 0; }
}
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  background: transparent; border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
}
.site-header.scrolled {
  background: rgba(12,12,14,.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; padding: 0 24px; max-width: 1200px; margin: 0 auto;
}
@media (max-width: 639px) {
  .header-inner { padding: 0 16px; height: 64px; }
}
.site-logo {
  display: inline-flex; align-items: baseline; gap: 6px;
  font-weight: 700; font-size: 22px; letter-spacing: -.02em; color: var(--text);
}
.site-logo .logo-main { font-weight: 800; }
.site-logo .logo-sub { font-size: 13px; font-weight: 400; color: var(--text-sec); letter-spacing: .05em; }
.site-logo:hover { color: var(--accent); }
.site-logo:hover .logo-sub { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  font-size: 15px; color: var(--text-sec); font-weight: 500; position: relative; padding: 6px 0;
}
.main-nav a:hover { color: var(--text); }
.main-nav a.active { color: var(--accent); }
.main-nav a.active::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--accent); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 16px; }
.menu-toggle {
  display: none; width: 42px; height: 42px; border-radius: 8px;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--text); transition: all .3s; }
@media (max-width: 690px) {
  .main-nav { display: none; }
  .nav-cta .btn { display: none; }
  .menu-toggle { display: inline-flex; }
}
.mobile-menu {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 1000;
  background: rgba(12,12,14,.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 24px; opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s;
}
.mobile-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-menu-close {
  position: absolute; top: 24px; right: 24px; width: 44px; height: 44px;
  font-size: 28px; color: var(--text); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); transition: all .25s;
}
.mobile-menu-close:hover { border-color: var(--accent); color: var(--accent); transform: rotate(90deg); }
.mobile-menu-nav { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.mobile-menu-nav a { font-size: 28px; font-weight: 600; color: var(--text); line-height: 1.6; }
.mobile-menu-nav a:hover { color: var(--accent); }
.mobile-menu-nav a.active { color: var(--accent); }
.mobile-menu-cta { margin-top: 12px; }
.mobile-menu-nav a { opacity: 0; transform: translateY(10px); transition: opacity .3s ease, transform .3s ease; }
.mobile-menu.open .mobile-menu-nav a { opacity: 1; transform: translateY(0); }
.mobile-menu.open .mobile-menu-nav a:nth-child(1) { transition-delay: .05s; }
.mobile-menu.open .mobile-menu-nav a:nth-child(2) { transition-delay: .1s; }
.mobile-menu.open .mobile-menu-nav a:nth-child(3) { transition-delay: .15s; }
.mobile-menu.open .mobile-menu-nav a:nth-child(4) { transition-delay: .2s; }
.mobile-menu.open .mobile-menu-cta { opacity: 1; transform: translateY(0); transition: opacity .3s ease .25s, transform .3s ease .25s; }
.mobile-menu-cta { opacity: 0; transform: translateY(10px); }
.hero {
  min-height: 88vh; position: relative; display: flex; align-items: center;
  padding-top: 120px; padding-bottom: 80px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, rgba(12,12,14,0.92) 0%, rgba(12,12,14,0.75) 40%, rgba(12,12,14,0.45) 70%, rgba(12,12,14,0.3) 100%);
}
.hero-content { position: relative; z-index: 2; width: 100%; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px;
  border: 1px solid rgba(0,211,168,.4); border-radius: 999px; background: rgba(0,211,168,.08);
  font-size: 13px; font-weight: 500; letter-spacing: .08em; color: var(--accent); margin-bottom: 28px;
}
.hero-tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.hero h1 {
  font-size: clamp(36px, 6vw, 72px); font-weight: 700; line-height: 1.2;
  letter-spacing: -.02em; color: var(--text); max-width: 780px; margin-bottom: 24px;
}
.hero-sub {
  font-size: 17px; line-height: 1.8; color: var(--text-sec); max-width: 580px; margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
@media (max-width: 639px) {
  .hero { padding-top: 100px; padding-bottom: 48px; min-height: auto; }
  .hero-content { text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
}
.countdown-section { padding: 64px 0; border-top: 1px solid var(--border); background: var(--bg-alt2); }
.countdown-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.countdown-text { display: flex; flex-direction: column; gap: 6px; }
.countdown-label { font-size: 18px; font-weight: 600; color: var(--text); }
.countdown-date { font-size: 14px; color: var(--text-sec); }
.countdown-grid { display: flex; gap: 12px; flex-wrap: wrap; }
.count-item {
  width: 96px; padding: 14px 8px; display: flex; flex-direction: column; align-items: center;
  background: rgba(255,255,255,.03); border: 1px solid var(--border); border-radius: 12px;
}
.count-num {
  font-size: 48px; font-weight: 600; color: var(--accent); line-height: 1.1;
  font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; min-width: 64px; text-align: center;
  transition: opacity .12s ease;
}
.count-unit { font-size: 12px; color: var(--text-dim); letter-spacing: .08em; margin-top: 8px; }
.count-item.flash .count-num { opacity: .5; }
@media (max-width: 639px) {
  .countdown-bar { flex-direction: column; align-items: flex-start; }
  .countdown-grid { width: 100%; justify-content: space-between; }
  .count-item { flex: 1; min-width: 70px; width: auto; }
  .count-num { font-size: 36px; min-width: 0; }
}
.highlights-section { padding: var(--space) 0; }
.timeline { position: relative; padding-left: 32px; max-width: 720px; }
.timeline::before {
  content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px;
  width: 1px; background: var(--border);
}
.timeline-item { position: relative; padding-bottom: 56px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
  position: absolute; left: -32px; top: 8px; width: 20px; height: 20px;
  border-radius: 50%; background: var(--bg); border: 2px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.timeline-marker::after { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.timeline-num {
  font-size: 42px; font-weight: 200; color: rgba(242,240,234,.4);
  line-height: 1; letter-spacing: -.02em; display: block; margin-bottom: 12px;
}
.timeline-body h3 { font-size: 22px; font-weight: 600; margin-bottom: 10px; color: var(--text); }
.timeline-body p { font-size: 15px; color: var(--text-sec); line-height: 1.7; max-width: 560px; margin-bottom: 10px; }
@media (max-width: 639px) {
  .timeline-num { font-size: 32px; }
}
.subscribe-section { padding: var(--space) 0; }
.subscribe-box {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 56px; background: var(--bg-alt);
}
.subscribe-box h2 { font-size: 28px; font-weight: 600; margin-bottom: 10px; }
.subscribe-box p { color: var(--text-sec); font-size: 15px; }
.subscribe-form { max-width: 480px; }
.form-row { display: flex; gap: 0; align-items: flex-end; }
.subscribe-form input[type="email"] {
  flex: 1; min-width: 0; background: transparent; border: none;
  border-bottom: 1px solid var(--border-light); padding: 12px 4px;
  font-size: 15px; color: var(--text); border-radius: 0;
  transition: border-color .25s; height: auto; box-shadow: none; margin: 0;
}
.subscribe-form input[type="email"]::placeholder { color: var(--text-dim); }
.subscribe-form input[type="email"]:focus {
  border-bottom-color: var(--accent); outline: none; box-shadow: none; border-bottom-width: 2px;
}
.subscribe-form .btn { margin-left: 16px; }
.form-feedback { font-size: 13px; margin-top: 12px; min-height: 20px; }
.form-feedback.success { color: var(--success); }
.form-feedback.error { color: var(--error); }
.privacy-note { font-size: 12px; color: var(--text-dim); margin-top: 8px; }
@media (max-width: 639px) {
  .subscribe-box { padding: 32px 24px; }
  .form-row { flex-direction: column; align-items: stretch; gap: 16px; }
  .subscribe-form .btn { margin-left: 0; }
}
.replays-section { padding: var(--space) 0; background: var(--bg-alt2); }
.replays-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.replay-card {
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px; transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.replay-card:hover {
  border-color: rgba(0,211,168,.6); transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.replay-cover { position: relative; border-radius: 10px; overflow: hidden; aspect-ratio: 16/9; }
.replay-cover img { width: 100%; height: 100%; transition: transform .4s ease; }
.replay-card:hover .replay-cover img { transform: scale(1.03); }
.duration {
  position: absolute; top: 10px; right: 10px; padding: 3px 8px;
  background: rgba(0,0,0,.7); color: #fff; font-size: 12px; border-radius: 4px;
  font-variant-numeric: tabular-nums;
}
.replay-card h3 {
  font-size: 16px; font-weight: 600; margin: 14px 6px 6px; color: var(--text);
  line-height: 1.4; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.replay-date { font-size: 13px; color: var(--text-sec); margin: 0 6px 8px; }
@media (max-width: 1023px) {
  .replays-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 639px) {
  .replays-grid { grid-template-columns: 1fr; }
}
.news-section { padding: var(--space) 0; }
.news-list { border-top: 1px solid var(--border); }
.news-item { border-bottom: 1px solid var(--border); transition: background .25s; }
.news-item:hover { background: rgba(255,255,255,.02); }
.news-link { display: block; padding: 28px 12px; }
.news-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 10px; }
.news-tag {
  font-size: 12px; color: var(--accent); border: 1px solid rgba(0,211,168,.3);
  padding: 2px 10px; border-radius: 999px; background: rgba(0,211,168,.05);
}
.news-meta time { font-size: 13px; color: var(--text-dim); }
.news-item h3 {
  font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 8px;
  transition: transform .25s ease, color .25s ease; line-height: 1.5;
}
.news-item:hover h3 { color: var(--accent); transform: translateX(3px); }
.news-item p { font-size: 14px; color: var(--text-sec); line-height: 1.7; max-width: 680px; }
.news-empty {
  border: 1px dashed var(--border-light); border-radius: 12px;
  padding: 32px; text-align: center; color: var(--text-dim); font-size: 14px; margin-top: 24px;
}
.news-empty::before {
  content: ""; display: block; width: 20px; height: 20px; margin: 0 auto 12px;
  border-radius: 50%; border: 1px dashed var(--border-light);
}
.faq-section { padding: var(--space) 0; background: var(--bg-alt2); }
.faq-list { max-width: 720px; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 22px 4px; font-size: 16px; font-weight: 600; color: var(--text); text-align: left;
  transition: color .2s; gap: 16px;
}
.faq-question:hover { color: var(--accent); }
.faq-icon { width: 12px; height: 12px; position: relative; flex-shrink: 0; transition: transform .3s; }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; background: currentColor; transition: all .3s; }
.faq-icon::before { width: 12px; height: 2px; top: 5px; left: 0; }
.faq-icon::after { width: 2px; height: 12px; top: 0; left: 5px; }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(135deg); }
.faq-question[aria-expanded="true"] { color: var(--accent); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height .35s ease;
  font-size: 14px; color: var(--text-sec); line-height: 1.8; padding: 0 4px;
}
.faq-answer-inner { padding-bottom: 20px; }
.cta-section { padding: 80px 0; }
.cta-box {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 48px 56px;
  background: linear-gradient(135deg, rgba(0,211,168,.06), rgba(12,12,14,0) 60%);
}
.cta-box p { font-size: 20px; font-weight: 600; line-height: 1.5; color: var(--text); }
@media (max-width: 639px) {
  .cta-box { flex-direction: column; text-align: center; padding: 32px 24px; }
}
.footer { background: var(--bg-deep); border-top: 1px solid #19191C; padding: 72px 0 32px; }
.footer-brand .footer-logo { font-size: 24px; font-weight: 700; color: var(--text); }
.footer-brand p { font-size: 14px; color: var(--text-sec); margin-top: 12px; max-width: 300px; line-height: 1.7; }
.footer h4 { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 18px; letter-spacing: .05em; }
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--text-sec); }
.footer-links a:hover { color: var(--accent); }
.footer-contact p { font-size: 14px; color: var(--text-sec); margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid #19191C; margin-top: 56px; padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: var(--text-dim);
}
@media (max-width: 639px) {
  .footer { padding-top: 48px; }
  .footer-bottom { flex-direction: column; }
}
.visible { opacity: 1 !important; transform: translateY(0) !important; }
.section-header, .timeline-item, .replay-card, .news-item, .faq-item, .subscribe-box {
  opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .section-header, .timeline-item, .replay-card, .news-item, .faq-item, .subscribe-box {
    opacity: 1 !important; transform: none !important;
  }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --bg-dark: #0C0C0E;
            --bg-secondary: #16161A;
            --bg-tertiary: #111114;
            --text-primary: #F2F0EA;
            --text-secondary: #A0A0A6;
            --text-dim: #6C6C70;
            --border-color: #26262B;
            --border-light: #3A3A40;
            --accent: #00D3A8;
            --accent-hover: #22E6BC;
            --accent-active: #00B98E;
            --amber: #E8B55C;
            --error: #E55342;
            --success: #3DD68C;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --font-stack: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: var(--font-stack);
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器与栅格 ===== */
        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--bg-dark);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 999px;
            transition: all 0.25s ease-out;
            cursor: pointer;
            border: 1px solid transparent;
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--bg-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 211, 168, 0.25);
        }
        .btn-primary:active {
            background: var(--accent-active);
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent-hover);
            outline-offset: 3px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: 999px;
            border: 1px solid var(--border-light);
            transition: all 0.25s ease-out;
            cursor: pointer;
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--text-primary);
            background: rgba(242, 240, 234, 0.04);
            color: var(--text-primary);
        }
        .btn-secondary:active {
            transform: translateY(0);
            border-color: var(--accent);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ===== 导航 ===== */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background 0.3s ease, border-color 0.3s ease;
        }
        .main-nav.scrolled {
            background: rgba(12, 12, 14, 0.82);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom-color: rgba(38, 38, 43, 0.6);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: baseline;
            gap: 2px;
            line-height: 1;
        }
        .nav-logo span {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
            margin-left: 4px;
        }
        .nav-logo:hover {
            color: var(--accent);
        }
        .nav-logo:hover span {
            color: var(--accent-hover);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            transition: color 0.2s ease;
        }
        .nav-links a:hover {
            color: var(--text-primary);
        }
        .nav-links a.active {
            color: var(--text-primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-links .nav-cta {
            margin-left: 8px;
        }
        .nav-links .nav-cta.btn-primary {
            color: var(--bg-dark);
            padding: 10px 22px;
            font-size: 14px;
        }
        .nav-links .nav-cta.btn-primary:hover {
            color: var(--bg-dark);
        }
        .nav-links .nav-cta.btn-primary.active::after {
            display: none;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 8px;
            transition: background 0.2s ease;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== 页面 Header ===== */
        .page-header {
            position: relative;
            padding: 172px 0 84px;
            background: linear-gradient(0deg, rgba(12, 12, 14, 0.85) 0%, rgba(12, 12, 14, 0.55) 50%, rgba(12, 12, 14, 0.9) 100%),
                url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
        }
        .header-tag {
            display: inline-block;
            font-size: 13px;
            color: var(--accent);
            border: 1px solid rgba(0, 211, 168, 0.35);
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.06em;
            margin-bottom: 20px;
            background: rgba(0, 211, 168, 0.06);
        }
        .page-header h1 {
            font-size: clamp(36px, 4.5vw, 44px);
            font-weight: 600;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .page-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto;
        }
        .page-header .grid-x {
            text-align: center;
        }

        /* ===== 通用区块间距 ===== */
        .section-pad {
            padding: 96px 0;
        }

        /* ===== 图文交错 ===== */
        .feature-row {
            padding: 96px 0;
            border-bottom: 1px solid rgba(38, 38, 43, 0.5);
        }
        .feature-row:first-of-type {
            border-top: 1px solid rgba(38, 38, 43, 0.5);
        }
        .feature-media {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4 / 3;
            transition: transform 0.5s ease;
        }
        .feature-row:hover .feature-media img {
            transform: scale(1.03);
        }
        .feature-content {
            padding: 0 24px;
        }
        .feature-content .feature-kicker {
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            text-transform: uppercase;
            display: block;
        }
        .feature-content h2 {
            font-size: clamp(24px, 2.6vw, 34px);
            font-weight: 600;
            letter-spacing: -0.01em;
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .feature-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 500px;
        }
        .feature-reverse .feature-media {
            order: 2;
        }
        .feature-reverse .feature-content {
            order: 1;
        }

        /* ===== 步骤列表 ===== */
        .steps-section {
            padding: 96px 0 80px;
            background: var(--bg-tertiary);
            border-bottom: 1px solid var(--border-color);
        }
        .section-head {
            margin-bottom: 52px;
        }
        .section-head.align-center {
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            letter-spacing: 0.1em;
            text-transform: uppercase;
            background: rgba(0, 211, 168, 0.08);
            border: 1px solid rgba(0, 211, 168, 0.2);
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3.2vw, 38px);
            font-weight: 600;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .steps-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 64px;
            position: relative;
        }
        .steps-list::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 8%;
            right: 8%;
            height: 1px;
            background: var(--border-color);
        }
        .step-item {
            position: relative;
            padding-top: 20px;
        }
        .step-num {
            display: inline-block;
            font-size: 42px;
            font-weight: 200;
            color: rgba(242, 240, 234, 0.25);
            line-height: 1;
            margin-bottom: 16px;
            font-feature-settings: "tnum";
        }
        .step-item h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
        }

        /* ===== 引用与数据 ===== */
        .quote-stats {
            padding: 80px 0;
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-color);
        }
        .quote-block {
            max-width: 780px;
            margin: 0 auto 56px;
            text-align: center;
            padding: 40px;
            border-left: 4px solid var(--accent);
            background: var(--bg-secondary);
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
        }
        .quote-block blockquote {
            font-size: 20px;
            font-weight: 400;
            color: var(--text-primary);
            line-height: 1.6;
            letter-spacing: 0.01em;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: 820px;
            margin: 0 auto;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.02);
            transition: border-color 0.25s ease;
        }
        .stat-item:hover {
            border-color: var(--accent);
        }
        .stat-item strong {
            display: block;
            font-size: 40px;
            font-weight: 600;
            color: var(--accent);
            line-height: 1.2;
            font-feature-settings: "tnum";
            margin-bottom: 6px;
        }
        .stat-item strong em {
            font-size: 18px;
            font-style: normal;
            font-weight: 400;
            color: var(--text-secondary);
        }
        .stat-item span {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
        }

        /* ===== CTA / 订阅 ===== */
        .cta-section {
            padding: 96px 0;
            background: var(--bg-tertiary);
            border-bottom: 1px solid var(--border-color);
        }
        .cta-inner {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 56px 48px;
            background: rgba(22, 22, 26, 0.6);
        }
        .cta-inner h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 600;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }
        .cta-inner>p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto 14px;
        }
        .cta-form input {
            flex: 1;
            height: 48px;
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-primary);
            font-size: 15px;
            padding: 0 4px;
            transition: border-color 0.25s ease;
            border-radius: 0;
        }
        .cta-form input::placeholder {
            color: var(--text-dim);
        }
        .cta-form input:focus {
            border-bottom-color: var(--accent);
            border-bottom-width: 2px;
        }
        .cta-form input:hover {
            border-bottom-color: var(--text-secondary);
        }
        .form-tip {
            font-size: 13px;
            color: var(--text-dim);
            margin-top: 4px;
            transition: color 0.2s ease;
            min-height: 20px;
        }
        .form-tip.success {
            color: var(--success);
        }
        .form-tip.error {
            color: var(--error);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
        }
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }
        .faq-item {
            border-top: 1px solid var(--border-color);
        }
        .faq-item:last-child {
            border-bottom: 1px solid var(--border-color);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            text-align: left;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 22px 4px;
            cursor: pointer;
            transition: color 0.2s ease;
            gap: 20px;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-icon {
            position: relative;
            width: 12px;
            height: 12px;
            flex-shrink: 0;
            border-right: 2px solid var(--text-secondary);
            border-bottom: 2px solid var(--text-secondary);
            transform: rotate(45deg);
            transition: transform 0.3s ease, border-color 0.3s ease;
            margin-top: -4px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(-135deg);
            border-color: var(--accent);
        }
        .faq-answer {
            display: none;
            padding: 0 4px 22px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 620px;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #08080A;
            border-top: 1px solid #19191C;
            padding: 72px 0 0;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 12px;
            max-width: 300px;
            line-height: 1.7;
        }
        .footer-links h4,
        .footer-contact h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-links ul {
            display: grid;
            gap: 10px;
        }
        .footer-links ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .footer-links ul a:hover {
            color: var(--accent);
        }
        .footer-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            margin-top: 56px;
            border-top: 1px solid #19191C;
            padding: 24px 0;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-dim);
            text-align: center;
            margin: 0;
        }

        /* ===== 滚动入场动效 ===== */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .section-pad,
            .feature-row,
            .steps-section,
            .cta-section,
            .faq-section {
                padding: 72px 0;
            }
            .steps-list {
                gap: 40px;
            }
        }

        @media (max-width: 690px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-inner {
                height: 62px;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 82%;
                max-width: 320px;
                height: 100vh;
                background: rgba(12, 12, 14, 0.97);
                -webkit-backdrop-filter: blur(18px);
                backdrop-filter: blur(18px);
                flex-direction: column;
                justify-content: flex-start;
                align-items: flex-start;
                padding: 96px 32px 40px;
                gap: 22px;
                transition: right 0.35s ease;
                border-left: 1px solid var(--border-color);
                z-index: 100;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                font-size: 20px;
                color: var(--text-primary);
                opacity: 0;
                transform: translateY(12px);
                transition: opacity 0.3s ease, transform 0.3s ease;
            }
            .nav-links.open a {
                opacity: 1;
                transform: translateY(0);
            }
            .nav-links.open a:nth-child(1) {
                transition-delay: 0.05s;
            }
            .nav-links.open a:nth-child(2) {
                transition-delay: 0.1s;
            }
            .nav-links.open a:nth-child(3) {
                transition-delay: 0.15s;
            }
            .nav-links.open a:nth-child(4) {
                transition-delay: 0.2s;
            }
            .nav-links.open a:nth-child(5) {
                transition-delay: 0.25s;
            }
            .nav-links a.active::after {
                bottom: auto;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 20px;
                left: -14px;
            }
            .nav-links .nav-cta.btn-primary {
                margin-left: 0;
                margin-top: 14px;
                width: 100%;
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
                position: relative;
                z-index: 101;
            }
            .page-header {
                padding: 130px 0 60px;
            }
            .page-header h1 {
                font-size: 34px;
            }
            .feature-row {
                padding: 56px 0;
            }
            .feature-content {
                padding: 24px 0 0;
            }
            .feature-media img {
                aspect-ratio: 16 / 11;
            }
            .feature-reverse .feature-media {
                order: 1;
            }
            .feature-reverse .feature-content {
                order: 2;
            }
            .steps-section {
                padding: 56px 0 48px;
            }
            .steps-list {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .steps-list::before {
                display: none;
            }
            .step-item {
                padding-top: 0;
            }
            .step-item p {
                max-width: none;
            }
            .quote-stats {
                padding: 56px 0;
            }
            .quote-block {
                padding: 24px;
                margin-bottom: 36px;
            }
            .quote-block blockquote {
                font-size: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
                max-width: 320px;
            }
            .stat-item {
                padding: 24px 16px;
            }
            .stat-item strong {
                font-size: 34px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-inner {
                padding: 36px 20px;
                border-radius: 16px;
            }
            .cta-form {
                flex-direction: column;
                gap: 16px;
            }
            .cta-form input {
                height: 44px;
            }
            .cta-form .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .faq-section {
                padding: 56px 0;
            }
            .footer {
                padding-top: 48px;
            }
            .footer-bottom {
                margin-top: 32px;
                padding: 20px 0;
            }
            .footer-bottom p {
                font-size: 12px;
            }
        }

        @media (max-width: 360px) {
            .nav-logo {
                font-size: 20px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
            .reveal {
                opacity: 1;
                transform: none;
            }
        }

/* roulang page: article */
:root {
    --bg: #0C0C0E;
    --bg-secondary: #16161A;
    --bg-tertiary: #111114;
    --text: #F2F0EA;
    --text-secondary: #A0A0A6;
    --border: #26262B;
    --border-strong: #3A3A40;
    --accent: #00D3A8;
    --accent-hover: #22E6BC;
    --accent-active: #00B98E;
    --amber: #E8B55C;
    --error: #E55342;
    --success: #3DD68C;
    --radius: 14px;
    --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    --font: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
    --transition: 0.25s ease-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: var(--text);
    text-decoration: none;
    transition: color var(--transition);
}

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

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

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

::selection {
    background: rgba(0, 211, 168, 0.2);
}

.grid-container {
    max-width: 1200px;
    width: 100%;
    padding: 0 24px;
}

@media (max-width: 640px) {
    .grid-container {
        padding: 0 16px;
    }
}

.cell {
    margin-bottom: 0;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.2;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: #0C0C0E;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #0C0C0E;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(0, 211, 168, 0.15);
}

.btn-primary:active {
    background: var(--accent-active);
    transform: translateY(0);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text);
}

.btn-secondary:hover {
    border-color: var(--text);
    background: rgba(242, 240, 234, 0.04);
    transform: translateY(-1px);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 200;
    background: transparent;
    transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
    background: rgba(12, 12, 14, 0.82);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(38, 38, 43, 0.6);
}

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

.brand {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    text-decoration: none;
    flex-shrink: 0;
}

.brand-mark {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text);
    transition: color var(--transition);
}

.brand-sub {
    font-size: 13px;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
}

.brand:hover .brand-mark {
    color: var(--accent);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 34px;
}

.main-nav a {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    padding: 6px 0;
    text-decoration: none;
    transition: color var(--transition);
}

.main-nav a:hover {
    color: var(--text);
}

.main-nav a.active {
    color: var(--accent);
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.header-cta {
    margin-left: 12px;
    padding: 10px 24px;
    font-size: 14px;
    flex-shrink: 0;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 10px;
    cursor: pointer;
    z-index: 210;
    position: relative;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    margin: 5px 0;
    transition: all 0.3s ease;
}

.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: min(360px, 100%);
    height: 100vh;
    background: rgba(12, 12, 14, 0.97);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    z-index: 150;
    padding: 96px 32px 40px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

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

.mobile-nav {
    display: flex;
    flex-direction: column;
}

.mobile-nav a {
    font-size: 24px;
    font-weight: 600;
    color: var(--text);
    padding: 16px 0;
    border-bottom: 1px solid rgba(38, 38, 43, 0.4);
    text-decoration: none;
    transition: color var(--transition), padding-left var(--transition);
}

.mobile-nav a:hover,
.mobile-nav a.active {
    color: var(--accent);
    padding-left: 6px;
}

.mobile-cta {
    margin-top: 32px;
    font-size: 16px;
}

@media (max-width: 1024px) {
    .main-nav {
        gap: 20px;
    }

    .main-nav a {
        font-size: 14px;
    }

    .header-cta {
        padding: 10px 18px;
        font-size: 14px;
    }
}

@media (max-width: 690px) {
    .main-nav,
    .header-cta {
        display: none;
    }

    .nav-toggle {
        display: block;
    }
}

.article-header {
    position: relative;
    padding: 160px 0 64px;
    background: linear-gradient(180deg, rgba(12, 12, 14, 0.88) 0%, rgba(12, 12, 14, 0.95) 55%, var(--bg) 100%), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    border-bottom: 1px solid var(--border);
}

.breadcrumb {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--transition);
}

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

.breadcrumb .sep {
    color: var(--border-strong);
}

.breadcrumb .current {
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 420px;
}

.category-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(0, 211, 168, 0.35);
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 20px;
}

.article-title {
    font-size: clamp(32px, 4.4vw, 44px);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    max-width: 760px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

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

.article-meta .meta-sep {
    color: var(--border-strong);
}

.article-meta i {
    color: var(--text-secondary);
    font-size: 13px;
}

@media (max-width: 690px) {
    .article-header {
        padding: 130px 0 48px;
    }
}

.article-content-section {
    padding: 64px 0 48px;
}

.article-body-wrap {
    max-width: 720px;
    margin: 0 auto;
}

.article-body {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
}

.article-body p {
    margin-bottom: 24px;
}

.article-body h2 {
    font-size: 28px;
    font-weight: 600;
    margin: 48px 0 20px;
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.article-body h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 36px 0 16px;
}

.article-body h4 {
    font-size: 18px;
    font-weight: 600;
    margin: 28px 0 12px;
}

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

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

.article-body li::marker {
    color: var(--accent);
}

.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(255, 255, 255, 0.03);
    padding: 20px 24px;
    border-radius: 0 12px 12px 0;
    margin: 32px 0;
    color: var(--text-secondary);
}

.article-body blockquote p:last-child {
    margin-bottom: 0;
}

.article-body img {
    border-radius: 12px;
    margin: 32px 0;
    width: auto;
    max-width: 100%;
}

.article-body figure {
    margin: 32px 0;
}

.article-body figcaption {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 10px;
    line-height: 1.5;
}

.article-body a {
    color: var(--accent);
    border-bottom: 1px solid rgba(0, 211, 168, 0.3);
}

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

.article-body pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
    margin: 24px 0;
    font-size: 14px;
    line-height: 1.6;
}

.article-body code {
    font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
}

.article-body pre code {
    background: none;
    padding: 0;
}

.article-body table {
    width: 100%;
    margin: 32px 0;
    border-collapse: collapse;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.article-body th {
    background: rgba(255, 255, 255, 0.04);
    font-weight: 600;
    text-align: left;
    padding: 12px 16px;
    color: var(--text);
    border-bottom: 1px solid var(--border);
}

.article-body td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}

.article-body tr:last-child td {
    border-bottom: none;
}

.empty-state {
    text-align: center;
    padding: 80px 0;
    max-width: 480px;
    margin: 0 auto;
}

.empty-state .icon-circle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 1px dashed var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--text-secondary);
    font-size: 18px;
}

.empty-state p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.post-actions-section {
    padding: 40px 0 64px;
}

.post-actions {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.post-actions .btn-secondary,
.post-actions .btn-primary {
    padding: 10px 24px;
    font-size: 14px;
}

.related-section {
    padding: 72px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.section-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(26px, 3.2vw, 36px);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 40px;
    line-height: 1.3;
}

.related-list {
    max-width: 900px;
    border-top: 1px solid var(--border);
}

.related-item {
    display: block;
    padding: 28px 16px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: background var(--transition), padding-left var(--transition);
}

.related-item:hover {
    background: rgba(255, 255, 255, 0.02);
    padding-left: 20px;
}

.related-item h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
    transition: color var(--transition);
}

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

.related-item p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.6;
}

.related-item .related-time {
    font-size: 13px;
    color: var(--text-secondary);
    opacity: 0.65;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cta-section {
    padding: 88px 0;
    background: var(--bg);
}

.cta-box {
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 48px;
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-tertiary));
}

.cta-box h2 {
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.cta-box .cta-desc {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 28px;
}

.subscribe-form .form-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.subscribe-form input[type="email"] {
    flex: 1;
    min-width: 220px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-strong);
    padding: 12px 4px;
    color: var(--text);
    font-size: 15px;
    transition: border-color var(--transition);
}

.subscribe-form input[type="email"]::placeholder {
    color: #6C6C70;
}

.subscribe-form input[type="email"]:focus {
    outline: none;
    border-bottom: 2px solid var(--accent);
}

.form-msg {
    font-size: 13px;
    margin-top: 14px;
    min-height: 20px;
}

.form-msg.success {
    color: var(--success);
}

.form-msg.error {
    color: var(--error);
}

.form-privacy {
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.6;
    margin-top: 16px;
    margin-bottom: 0;
}

.cta-visual img {
    border-radius: 16px;
    object-fit: cover;
    width: 100%;
    height: 100%;
    min-height: 220px;
}

@media (max-width: 1024px) {
    .cta-visual {
        margin-top: 32px;
    }
}

.footer {
    background: #08080A;
    border-top: 1px solid #19191C;
    padding: 64px 0 32px;
}

.footer-brand {
    margin-bottom: 12px;
}

.footer-logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
}

.footer p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

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

.footer-contact p {
    margin-bottom: 6px;
}

.footer-bottom {
    border-top: 1px solid #19191C;
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-secondary);
    opacity: 0.7;
}

@media (max-width: 640px) {
    .footer {
        padding: 48px 0 24px;
    }

    .footer .cell {
        margin-bottom: 32px;
    }

    .footer .cell:last-child {
        margin-bottom: 0;
    }
}

.reveal-hidden {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal-hidden.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal-hidden,
    .reveal-hidden.visible {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .btn-primary,
    .btn-secondary,
    a,
    .related-item,
    .main-nav a {
        transition: none;
    }
}