/* roulang page: index */
:root {
  --primary: #1a2e35;
  --primary-light: #2a4a54;
  --accent: #c9a96e;
  --accent-light: #e0c893;
  --accent-dark: #a8894f;
  --bg: #faf7f2;
  --bg-alt: #f0ebe3;
  --bg-dark: #14252b;
  --text: #2d2a26;
  --text-light: #6b6b6b;
  --text-muted: #9a938a;
  --border: #e5ded4;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 10px 32px rgba(0,0,0,0.10);
  --transition: all 0.3s ease;
  --font-primary: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-primary); background: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: #fff; }

/* ===== Header / Nav ===== */
.site-header { background: rgba(255,255,255,0.98); box-shadow: 0 2px 12px rgba(0,0,0,0.06); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; backdrop-filter: blur(12px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 1.1rem; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; display: flex; align-items: center; gap: 8px; }
.logo i { color: var(--accent); font-size: 1.3rem; }
.nav-menu { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-menu a { padding: 6px 18px; border-radius: 30px; font-weight: 600; font-size: 0.92rem; color: var(--text); }
.nav-menu a:hover, .nav-menu a.active { background: var(--primary); color: #fff; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-city { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 30px; padding: 6px 16px; font-size: 0.9rem; font-weight: 600; color: var(--primary); }
.nav-city i { color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 4px 8px; }
@media (max-width: 768px) {
  .nav-menu { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; box-shadow: 0 8px 32px rgba(0,0,0,0.1); gap: 4px; border-bottom: 1px solid var(--border); }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-city { display: none; }
}

/* ===== Hero ===== */
.hero { padding: 88px 0 72px; background: linear-gradient(135deg, rgba(20,37,43,0.94), rgba(26,46,53,0.88)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; color: #fff; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px; background: linear-gradient(to bottom, transparent, var(--bg)); }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(201,169,110,0.18); border: 1px solid rgba(201,169,110,0.4); border-radius: 30px; padding: 6px 18px; font-size: 0.85rem; font-weight: 600; color: var(--accent-light); margin-bottom: 20px; }
.hero h1 { font-size: 2.4rem; line-height: 1.35; font-weight: 800; margin-bottom: 16px; color: #fff; letter-spacing: 0.5px; }
.hero-desc { font-size: 1rem; color: rgba(255,255,255,0.82); margin-bottom: 28px; max-width: 520px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: var(--primary); border: none; padding: 12px 28px; border-radius: 40px; font-size: 0.95rem; font-weight: 700; cursor: pointer; transition: var(--transition); box-shadow: 0 4px 16px rgba(201,169,110,0.3); }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(201,169,110,0.4); color: var(--primary); }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.4); padding: 12px 24px; border-radius: 40px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: var(--transition); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-light); transform: translateY(-2px); }
.hero-stats { display: flex; gap: 28px; margin-top: 32px; flex-wrap: wrap; }
.hero-stat { text-align: left; }
.hero-stat .num { font-size: 1.6rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
.hero-stat .label { font-size: 0.82rem; color: rgba(255,255,255,0.7); margin-top: 4px; }
.hero-demo { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius-lg); padding: 24px; backdrop-filter: blur(8px); }
.demo-steps { list-style: none; margin: 0; }
.demo-steps li { display: flex; align-items: flex-start; gap: 12px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.demo-steps li:last-child { border-bottom: none; }
.demo-step-icon { width: 32px; height: 32px; min-width: 32px; border-radius: 50%; background: rgba(201,169,110,0.2); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 0.85rem; }
.demo-step-content .demo-step-title { font-weight: 700; font-size: 0.92rem; color: #fff; }
.demo-step-content .demo-step-desc { font-size: 0.82rem; color: rgba(255,255,255,0.6); margin-top: 2px; }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 1.8rem; }
  .hero { padding: 64px 0 48px; }
}

/* ===== Trust Bar ===== */
.trust-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 20px 0; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.trust-item { display: flex; align-items: center; gap: 12px; }
.trust-item i { font-size: 1.4rem; color: var(--accent); width: 32px; text-align: center; }
.trust-item .trust-title { font-weight: 700; font-size: 0.9rem; color: var(--text); }
.trust-item .trust-desc { font-size: 0.8rem; color: var(--text-light); margin-top: 2px; }
@media (max-width: 768px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

/* ===== Section Head ===== */
.section-head { margin-bottom: 48px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-block; background: rgba(201,169,110,0.15); color: var(--accent-dark); font-size: 0.8rem; font-weight: 700; letter-spacing: 1px; padding: 5px 14px; border-radius: 30px; margin-bottom: 14px; text-transform: uppercase; }
.section-head h2 { font-size: 2rem; font-weight: 800; color: var(--text); line-height: 1.3; margin-bottom: 12px; }
.section-head p { color: var(--text-light); font-size: 0.98rem; line-height: 1.8; }
.section-head.light h2 { color: #fff; }
.section-head.light p { color: rgba(255,255,255,0.7); }

/* ===== Cards ===== */
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.card-img { width: 100%; height: 210px; object-fit: cover; }
.card-body { padding: 20px; }
.card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.card-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }
.card-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.88rem; color: var(--accent-dark); margin-top: 12px; }
.card-link:hover { gap: 10px; color: var(--primary); }
.grid-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; list-style: none; margin: 0; }
@media (max-width: 900px) {
  .grid-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid-cards { grid-template-columns: 1fr; }
}

/* ===== Service Showcase ===== */
.showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.showcase-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.showcase-media img { width: 100%; height: 380px; object-fit: cover; }
.showcase-list { list-style: none; margin: 0; }
.showcase-list li { padding: 14px 0; border-bottom: 1px solid var(--border); display: flex; gap: 14px; align-items: flex-start; }
.showcase-list li:last-child { border-bottom: none; }
.showcase-num { font-size: 1.1rem; font-weight: 800; color: var(--accent); min-width: 32px; }
.showcase-title { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; }
.showcase-desc { font-size: 0.83rem; color: var(--text-light); line-height: 1.6; }
@media (max-width: 900px) {
  .showcase-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== Benefits ===== */
.benefit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.benefit-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 22px; text-align: center; transition: var(--transition); box-shadow: var(--shadow); }
.benefit-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.benefit-icon { width: 60px; height: 60px; border-radius: 50%; background: var(--bg-alt); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--accent); margin: 0 auto 16px; }
.benefit-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.benefit-card p { font-size: 0.86rem; color: var(--text-light); line-height: 1.7; }
@media (max-width: 900px) {
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .benefit-grid { grid-template-columns: 1fr; }
}

/* ===== Qualification ===== */
.qualify-box { background: #fff; border-left: 4px solid var(--accent); }
.qualify-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.qualify-item { padding: 28px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); transition: var(--transition); }
.qualify-item:hover { box-shadow: var(--shadow-hover); }
.qualify-item i { font-size: 2rem; color: var(--accent); margin-bottom: 14px; display: block; }
.qualify-item h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.qualify-item p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }
@media (max-width: 900px) {
  .qualify-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* ===== Stats ===== */
.stats-section { background: var(--bg-dark); color: #fff; position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat; opacity: 0.15; }
.stats-grid { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item .num { font-size: 2.2rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
.stat-item .label { font-size: 0.92rem; color: rgba(255,255,255,0.75); margin-top: 8px; }
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Steps ===== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-item { position: relative; text-align: center; padding: 30px 20px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); transition: var(--transition); }
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-number { width: 44px; height: 44px; border-radius: 50%; background: var(--primary); color: var(--accent); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.1rem; margin: 0 auto 16px; }
.step-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 0.86rem; color: var(--text-light); line-height: 1.7; }
.step-arrow { position: absolute; top: 50%; right: -18px; color: var(--accent); font-size: 1.2rem; z-index: 2; }
@media (max-width: 900px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .step-arrow { display: none; }
}
@media (max-width: 600px) {
  .steps-grid { grid-template-columns: 1fr; }
}

/* ===== News List ===== */
.news-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; }
.news-list { list-style: none; margin: 0; }
.news-item { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.news-item:last-child { border-bottom: none; }
.news-thumb { width: 130px; min-width: 130px; height: 86px; border-radius: 10px; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-info { flex: 1; }
.news-info h3 { font-size: 0.95rem; font-weight: 700; line-height: 1.5; margin-bottom: 6px; }
.news-info h3 a { color: var(--text); }
.news-info h3 a:hover { color: var(--accent-dark); }
.news-meta { display: flex; gap: 12px; font-size: 0.8rem; color: var(--text-muted); }
.news-meta .cat { background: var(--bg-alt); padding: 2px 10px; border-radius: 20px; font-weight: 600; }
.news-side { background: #fff; border-radius: var(--radius); padding: 24px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.news-side h3 { font-size: 1rem; font-weight: 800; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--accent); }
.side-recommend { list-style: none; margin: 0; }
.side-recommend li { padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 0.88rem; }
.side-recommend li:last-child { border-bottom: none; }
.side-recommend a { color: var(--text); display: flex; gap: 8px; align-items: flex-start; }
.side-recommend a:hover { color: var(--accent-dark); }
@media (max-width: 900px) {
  .news-grid { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-question { padding: 20px 24px; font-weight: 700; font-size: 1rem; cursor: pointer; display: flex; align-items: center; justify-content: space-between; color: var(--text); }
.faq-question i { color: var(--accent); transition: var(--transition); }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.open .faq-answer { max-height: 300px; padding-bottom: 20px; }
.faq-answer p { font-size: 0.9rem; color: var(--text-light); line-height: 1.8; }

/* ===== CTA Form ===== */
.cta-section { background: var(--primary); padding: 80px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat; opacity: 0.2; }
.cta-inner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.cta-text h2 { color: #fff; font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.cta-text p { color: rgba(255,255,255,0.7); font-size: 0.95rem; line-height: 1.8; margin-bottom: 20px; }
.cta-form { background: #fff; border-radius: var(--radius-lg); padding: 32px; box-shadow: 0 16px 40px rgba(0,0,0,0.2); }
.cta-form label { font-weight: 600; font-size: 0.85rem; color: var(--text); margin-bottom: 6px; display: block; }
.cta-form input, .cta-form select, .cta-form textarea { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; font-size: 0.9rem; margin-bottom: 16px; transition: var(--transition); background: var(--bg); }
.cta-form input:focus, .cta-form select:focus, .cta-form textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,169,110,0.12); background: #fff; }
.cta-form .btn-primary { width: 100%; justify-content: center; }
.cta-form .form-note { font-size: 0.78rem; color: var(--text-muted); text-align: center; margin-top: 12px; }
@media (max-width: 900px) {
  .cta-inner { grid-template-columns: 1fr; }
}

/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 20px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .footer-logo { font-size: 1.1rem; font-weight: 800; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-brand .footer-logo i { color: var(--accent); }
.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 300px; }
.footer-links h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; font-weight: 700; }
.footer-links ul { list-style: none; margin: 0; }
.footer-links li { margin-bottom: 10px; font-size: 0.88rem; }
.footer-links a { color: rgba(255,255,255,0.65); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.4); }
@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container { padding: 0 16px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .section-head h2 { font-size: 1.4rem; }
  .hero h1 { font-size: 1.4rem; }
  .hero-stats { gap: 16px; }
  .hero-stat .num { font-size: 1.2rem; }
}

/* roulang page: article */
:root {
  --primary: #1a2e35;
  --primary-light: #2a4a54;
  --accent: #c9a96e;
  --accent-light: #e0c893;
  --accent-dark: #a8894f;
  --bg: #faf7f2;
  --bg-alt: #f0ebe3;
  --bg-dark: #14252b;
  --text: #2d2a26;
  --text-light: #6b6b6b;
  --text-muted: #9a938a;
  --border: #e5ded4;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 10px 32px rgba(0,0,0,0.10);
  --transition: all 0.3s ease;
  --font-primary: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-primary); background: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: #fff; }

/* ===== Header / Nav ===== */
.site-header { background: rgba(255,255,255,0.98); box-shadow: 0 2px 12px rgba(0,0,0,0.06); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; backdrop-filter: blur(12px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 1.1rem; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; display: flex; align-items: center; gap: 8px; }
.logo i { color: var(--accent); font-size: 1.3rem; }
.nav-menu { display: flex; align-items: center; gap: 8px; list-style: none; margin: 0; padding: 0; }
.nav-menu a { padding: 6px 18px; border-radius: 30px; font-weight: 600; font-size: 0.92rem; color: var(--text); display: inline-block; }
.nav-menu a:hover, .nav-menu a.active { background: var(--primary); color: #fff; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-city { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 30px; padding: 6px 16px; font-size: 0.9rem; font-weight: 600; color: var(--primary); }
.nav-city i { color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 4px 8px; line-height: 1; }

/* ===== Section Head ===== */
.section-head { margin-bottom: 48px; max-width: 720px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-block; background: rgba(201,169,110,0.15); color: var(--accent-dark); font-size: 0.8rem; font-weight: 700; letter-spacing: 1px; padding: 5px 14px; border-radius: 30px; margin-bottom: 14px; text-transform: uppercase; }
.section-head h2 { font-size: 2rem; font-weight: 800; line-height: 1.3; margin-bottom: 12px; color: var(--text); }
.section-head p { font-size: 1rem; color: var(--text-light); line-height: 1.8; margin-bottom: 0; }
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head p { color: rgba(255,255,255,0.7); }
.section-dark .section-tag { background: rgba(201,169,110,0.2); color: var(--accent-light); }

/* ===== Buttons ===== */
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: var(--primary); border: none; padding: 12px 28px; border-radius: 40px; font-size: 0.95rem; font-weight: 700; cursor: pointer; transition: var(--transition); box-shadow: 0 4px 16px rgba(201,169,110,0.3); }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(201,169,110,0.4); color: var(--primary); }
.btn-primary:focus, .btn-outline:focus, .btn-back:focus { outline: 3px solid rgba(201,169,110,0.4); outline-offset: 2px; }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.4); padding: 12px 24px; border-radius: 40px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: var(--transition); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-light); transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 0.82rem; }

/* ===== Article Hero ===== */
.article-hero { position: relative; padding: 88px 0 72px; background-color: var(--bg-dark); background-image: linear-gradient(135deg, rgba(20,37,43,0.94), rgba(26,46,53,0.88)), url('/assets/images/backpic/back-2.jpg'); background-size: cover; background-position: center; color: #fff; text-align: center; overflow: hidden; }
.article-hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px; background: linear-gradient(to bottom, transparent, var(--bg)); }
.article-hero-inner { position: relative; z-index: 1; max-width: 860px; margin: 0 auto; }
.article-cat { display: inline-flex; align-items: center; gap: 6px; background: rgba(201,169,110,0.18); border: 1px solid rgba(201,169,110,0.4); border-radius: 30px; padding: 5px 18px; font-size: 0.82rem; font-weight: 600; color: var(--accent-light); margin-bottom: 18px; }
.article-title { font-size: 2.2rem; font-weight: 800; line-height: 1.4; color: #fff; margin-bottom: 16px; }
.article-meta { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; color: rgba(255,255,255,0.75); font-size: 0.9rem; }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }

/* ===== Invite / Progress ===== */
.article-invite { margin-top: 28px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius-lg); padding: 20px 24px; text-align: left; max-width: 560px; margin-left: auto; margin-right: auto; backdrop-filter: blur(8px); }
.invite-info { display: flex; align-items: center; gap: 10px; font-size: 0.92rem; color: #fff; margin-bottom: 14px; font-weight: 600; }
.invite-icon { color: var(--accent); font-size: 1.2rem; }
.invite-info strong { color: var(--accent-light); }
.article-invite .progress { margin-bottom: 12px !important; background: rgba(255,255,255,0.15); border: none; border-radius: 30px; height: 8px; overflow: hidden; }
.article-invite .progress-meter { background: linear-gradient(90deg, var(--accent), var(--accent-light)); border-radius: 30px; }
.invite-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.invite-percent { font-size: 0.82rem; color: rgba(255,255,255,0.7); }

/* ===== Article Body ===== */
.article-section { padding-top: 40px; }
.article-layout { max-width: 860px; margin: 0 auto; }
.article-content { font-size: 1.02rem; line-height: 2.05; color: var(--text); }
.article-content h2 { font-size: 1.5rem; font-weight: 800; margin: 36px 0 16px; color: var(--primary); border-left: 4px solid var(--accent); padding-left: 14px; }
.article-content h3 { font-size: 1.2rem; font-weight: 800; margin: 28px 0 12px; color: var(--primary); }
.article-content p { margin-bottom: 18px; }
.article-content img { border-radius: var(--radius); margin: 24px 0; box-shadow: var(--shadow); }
.article-content figure { margin: 24px 0; }
.article-content figcaption { font-size: 0.82rem; color: var(--text-muted); text-align: center; margin-top: 8px; }
.article-content ul, .article-content ol { margin: 0 0 20px 22px; padding: 0; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote { background: var(--bg-alt); border-left: 4px solid var(--accent); padding: 18px 24px; border-radius: 0 var(--radius) var(--radius) 0; margin: 24px 0; color: var(--text-light); font-style: italic; }
.article-content a { color: var(--accent-dark); font-weight: 600; border-bottom: 1px dashed var(--accent-dark); }
.article-content a:hover { color: var(--accent); border-bottom-style: solid; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.92rem; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--bg-alt); font-weight: 700; }
.article-footer-nav { margin-top: 40px; text-align: center; padding-top: 28px; border-top: 1px solid var(--border); }
.btn-back { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; border: none; padding: 11px 26px; border-radius: 40px; font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: var(--transition); }
.btn-back:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }

/* ===== Article Notfound ===== */
.article-notfound { text-align: center; padding: 60px 0 80px; }
.article-notfound i { font-size: 3rem; color: var(--accent); margin-bottom: 20px; display: block; }
.article-notfound h2 { font-size: 1.6rem; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.article-notfound p { color: var(--text-light); margin-bottom: 28px; }

/* ===== Insight ===== */
.insight-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 900px; margin: 0 auto 40px; }
.insight-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); transition: var(--transition); }
.insight-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.insight-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; background: rgba(201,169,110,0.15); color: var(--accent-dark); margin-bottom: 18px; }
.insight-icon.alt { background: rgba(26,46,53,0.08); color: var(--primary); }
.insight-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 10px; color: var(--text); }
.insight-card p { color: var(--text-light); font-size: 0.92rem; line-height: 1.85; margin-bottom: 0; }
.pull-quote { font-size: 1.2rem; font-weight: 700; color: var(--primary); border-left: 4px solid var(--accent); padding: 14px 24px; background: #fff; border-radius: 0 var(--radius) var(--radius) 0; margin: 40px auto 32px; max-width: 900px; box-shadow: var(--shadow); }
.pull-quote i { color: var(--accent); margin-right: 8px; }
.feature-media { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; max-width: 1000px; margin: 48px auto 0; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); }
.feature-media img { border-radius: var(--radius); object-fit: cover; height: 260px; width: 100%; }
.feature-content h3 { font-size: 1.25rem; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.feature-content p { font-size: 0.95rem; color: var(--text-light); line-height: 1.9; margin-bottom: 0; }

/* ===== Process ===== */
.process-section { background: var(--bg-alt); }
.process-step { text-align: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px 18px; height: 100%; box-shadow: var(--shadow); transition: var(--transition); }
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-num { font-size: 2.2rem; font-weight: 800; color: rgba(201,169,110,0.45); line-height: 1; margin-bottom: 14px; }
.process-step h3 { font-size: 1.05rem; font-weight: 800; color: var(--text); margin-bottom: 8px; }
.process-step p { font-size: 0.85rem; color: var(--text-light); line-height: 1.75; margin-bottom: 0; }

/* ===== Testimonials ===== */
.testimonial-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-lg); padding: 28px; height: 100%; transition: var(--transition); }
.testimonial-card:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
.testimonial-stars { color: var(--accent); font-size: 0.9rem; margin-bottom: 14px; letter-spacing: 2px; }
.testimonial-card p { color: rgba(255,255,255,0.88); font-size: 0.92rem; line-height: 1.9; margin-bottom: 20px; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--accent); color: var(--primary); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1rem; flex-shrink: 0; }
.testimonial-author strong { color: #fff; font-size: 0.9rem; display: block; line-height: 1.3; }
.testimonial-role { color: rgba(255,255,255,0.55); font-size: 0.78rem; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-alt); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item summary { padding: 18px 24px; font-weight: 700; font-size: 0.98rem; color: var(--text); cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); transition: var(--transition); }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item[open] { box-shadow: var(--shadow-hover); border-color: rgba(201,169,110,0.5); }
.faq-answer { padding: 16px 24px 20px; color: var(--text-light); font-size: 0.93rem; line-height: 1.85; border-top: 1px solid var(--border); }

/* ===== CTA ===== */
.cta-section { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -80px; right: -80px; width: 240px; height: 240px; border-radius: 50%; background: rgba(201,169,110,0.15); }
.cta-inner { text-align: center; max-width: 680px; margin: 0 auto; padding: 24px 0; position: relative; z-index: 1; }
.cta-inner h2 { font-size: 2rem; font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-inner p { color: rgba(255,255,255,0.8); margin-bottom: 28px; line-height: 1.8; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .footer-logo { font-size: 1.05rem; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 8px; margin-bottom: 12px; line-height: 1.5; }
.footer-brand .footer-logo i { color: var(--accent); }
.footer-brand p { font-size: 0.85rem; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 360px; margin-bottom: 0; }
.footer-links h4 { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
.footer-links ul { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.65); font-size: 0.88rem; transition: var(--transition); }
.footer-links a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 18px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 0.82rem; color: rgba(255,255,255,0.5); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .testimonial-card { padding: 22px; }
  .feature-media { grid-template-columns: 1fr; gap: 24px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 1.6rem; }
  .article-hero { padding: 64px 0 56px; }
  .article-title { font-size: 1.7rem; }
  .insight-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .nav-menu { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; box-shadow: 0 8px 32px rgba(0,0,0,0.1); border-bottom: 1px solid var(--border); }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-city { display: none; }
}
@media (max-width: 520px) {
  .logo { font-size: 0.95rem; }
  .article-title { font-size: 1.4rem; }
  .article-meta { gap: 14px; font-size: 0.82rem; }
  .article-invite { padding: 16px 18px; }
  .invite-row { flex-direction: column; align-items: flex-start; }
  .process-step { padding: 24px 16px; }
  .cta-inner h2 { font-size: 1.6rem; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}