/* roulang page: index */
:root {
  --primary: #E60023;
  --primary-hover: #C8001F;
  --primary-light: #FFE8E8;
  --accent: #FF6B35;
  --bg-main: #FFFDF8;
  --bg-gray: #F5F1EA;
  --bg-dark: #1C1C1E;
  --text-main: #1C1C1E;
  --text-secondary: #5C5A56;
  --text-aux: #8A8780;
  --border: #E8E2D8;
  --success: #2E7D5B;
  --radius-card: 16px;
  --radius-small: 8px;
  --radius-btn: 999px;
  --shadow-card: 0 8px 24px rgba(28,28,30,0.06);
  --shadow-hover: 0 16px 40px rgba(28,28,30,0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg-main); color: var(--text-main); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 16px; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600; line-height: 1.2; transition: var(--transition); border: 1px solid transparent; }
.btn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230, 0, 35, 0.25); }
.btn-secondary { background: transparent; border-color: var(--text-main); color: var(--text-main); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 253, 248, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: 0 4px 20px rgba(28, 28, 30, 0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 800; color: var(--text-main); letter-spacing: -0.5px; }
.logo svg { width: 28px; height: 28px; flex-shrink: 0; }
.logo span { white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 15px; font-weight: 500; color: var(--text-secondary); position: relative; padding: 6px 0; }
.nav-link:after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--primary); border-radius: 2px; transition: width 0.3s; }
.nav-link:hover, .nav-link.active { color: var(--text-main); }
.nav-link.active:after { width: 100%; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { padding: 10px 22px; font-size: 14px; }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition); }
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; padding: 80px 0 96px; background: var(--bg-main); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 64px; align-items: center; }
.hero-content { display: flex; flex-direction: column; align-items: flex-start; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-light); color: var(--primary); padding: 6px 16px; border-radius: 999px; font-size: 14px; font-weight: 600; margin-bottom: 24px; }
.hero h1 { font-size: 44px; line-height: 1.25; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 20px; color: var(--text-main); }
.hero h1 .highlight { color: var(--primary); }
.hero-desc { font-size: 17px; line-height: 1.75; color: var(--text-secondary); margin-bottom: 32px; max-width: 480px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-trust { display: flex; gap: 10px; flex-wrap: wrap; }
.trust-pill { background: var(--bg-gray); border: 1px solid var(--border); padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 500; color: var(--text-secondary); }
.trust-pill strong { color: var(--text-main); font-weight: 700; }
.hero-visual { position: relative; height: 520px; border-radius: 24px; overflow: hidden; }
.hero-visual-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-visual-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(28,28,30,0.05) 0%, rgba(28,28,30,0.3) 100%); }
.hero-pin-card { position: absolute; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(8px); border-radius: 12px; padding: 12px; box-shadow: 0 12px 32px rgba(28, 28, 30, 0.18); display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; color: var(--text-main); }
.hero-pin-card svg { width: 20px; height: 20px; flex-shrink: 0; }
.hero-pin-card .pin-cover { width: 36px; height: 36px; border-radius: 6px; object-fit: cover; }
.pin-1 { top: 32px; left: 32px; animation: float 4s ease-in-out infinite; }
.pin-2 { bottom: 48px; right: 32px; animation: float 5s ease-in-out 0.5s infinite; }
.pin-3 { top: 50%; left: -20px; animation: float 3.5s ease-in-out 1s infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.section { padding: 96px 0; }
.section-label { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-light); color: var(--primary); padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.section-title { font-size: 32px; line-height: 1.3; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 16px; color: var(--text-main); }
.section-desc { font-size: 16px; line-height: 1.7; color: var(--text-secondary); max-width: 680px; margin-bottom: 48px; }
.section-header { display: flex; flex-direction: column; align-items: flex-start; margin-bottom: 16px; }
.section-header .section-title { margin-bottom: 8px; }

.services { background: var(--bg-main); }
.services-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.service-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); padding: 32px; box-shadow: var(--shadow-card); transition: var(--transition); position: relative; }
.service-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.service-card.large { grid-column: span 7; }
.service-card.small { grid-column: span 5; }
.service-card.small.service-card-2 { margin-top: 0; }
.service-card.small.service-card-3 { margin-top: 24px; }
.service-card .hot-tag { position: absolute; top: 16px; right: 16px; background: var(--primary); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; }
.service-icon { width: 52px; height: 52px; background: var(--primary-light); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; color: var(--text-main); }
.service-card p { font-size: 15px; line-height: 1.7; color: var(--text-secondary); margin-bottom: 20px; }
.service-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.service-link:hover { gap: 10px; }
.service-cover { width: 100%; height: 200px; object-fit: cover; border-radius: 12px; margin-bottom: 24px; }

.stats { background: var(--bg-dark); padding: 72px 0; position: relative; overflow: hidden; }
.stats::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat; opacity: 0.08; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 1; }
.stat-item { text-align: center; padding: 32px 16px; }
.stat-number { font-size: 48px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; margin-bottom: 8px; line-height: 1; }
.stat-label { font-size: 16px; color: #fff; font-weight: 500; margin-bottom: 6px; }
.stat-desc { font-size: 13px; color: rgba(255, 255, 255, 0.6); }

.cases { background: var(--bg-gray); }
.cases-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); transition: var(--transition); }
.case-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.case-cover-wrap { position: relative; overflow: hidden; height: 240px; }
.case-cover-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-card:hover .case-cover-wrap img { transform: scale(1.03); }
.case-hover-cta { position: absolute; inset: 0; background: rgba(28, 28, 30, 0.35); display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--transition); }
.case-card:hover .case-hover-cta { opacity: 1; }
.case-hover-cta .btn { background: rgba(255, 255, 255, 0.92); color: var(--text-main); padding: 10px 24px; border-radius: 999px; font-size: 15px; font-weight: 600; }
.case-body { padding: 24px; }
.case-tag { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 999px; margin-bottom: 12px; }
.case-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.case-card .case-desc { font-size: 14px; line-height: 1.6; color: var(--text-secondary); margin-bottom: 16px; }
.case-result { display: inline-flex; align-items: center; gap: 8px; background: var(--bg-gray); padding: 6px 14px; border-radius: 8px; font-size: 14px; font-weight: 700; color: var(--primary); }
.case-result::before { content: "↑"; font-size: 16px; }

.solutions { background: var(--bg-main); }
.solution-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 48px 0; }
.solution-row + .solution-row { border-top: 1px solid var(--border); }
.solution-content { display: flex; flex-direction: column; align-items: flex-start; }
.solution-num { font-size: 14px; font-weight: 700; color: var(--primary); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.solution-content h3 { font-size: 26px; line-height: 1.35; font-weight: 700; margin-bottom: 16px; color: var(--text-main); }
.solution-content p { font-size: 15px; line-height: 1.7; color: var(--text-secondary); margin-bottom: 20px; }
.solution-list { margin-bottom: 28px; width: 100%; }
.solution-list li { display: flex; align-items: flex-start; gap: 12px; padding: 8px 0; font-size: 15px; line-height: 1.6; color: var(--text-secondary); }
.solution-list li::before { content: ""; width: 8px; height: 8px; background: var(--primary); border-radius: 2px; flex-shrink: 0; margin-top: 8px; }
.solution-visual { position: relative; border-radius: 20px; overflow: hidden; min-height: 320px; box-shadow: var(--shadow-card); }
.solution-visual img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
.solution-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(28,28,30,0.15) 0%, rgba(28,28,30,0.02) 60%); }
.solution-visual .visual-tag { position: absolute; bottom: 20px; left: 20px; z-index: 2; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(4px); padding: 8px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--text-main); }

.faq { background: var(--bg-gray); }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 24px 0; font-size: 17px; font-weight: 600; color: var(--text-main); text-align: left; transition: var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-icon { width: 24px; height: 24px; flex-shrink: 0; transition: transform 0.3s ease; position: relative; }
.faq-icon::before { content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 14px; height: 2px; background: var(--primary); border-radius: 2px; }
.faq-icon::after { content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 2px; height: 14px; background: var(--primary); border-radius: 2px; }
.faq-item.active .faq-icon::after { transform: translate(-50%, -50%) scale(0); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding-bottom: 24px; font-size: 15px; line-height: 1.8; color: var(--text-secondary); }

.contact { background: var(--bg-main); }
.contact-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; }
.contact-form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); padding: 40px; box-shadow: var(--shadow-card); }
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text-main); margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select { width: 100%; height: 46px; border: 1px solid var(--border); border-radius: 8px; padding: 0 14px; background: #fff; color: var(--text-main); transition: var(--transition); }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230, 0, 35, 0.12); }
.form-group textarea { height: 120px; padding: 14px; resize: vertical; }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238A8780' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-aux); }
.contact-info { background: var(--bg-dark); border-radius: var(--radius-card); padding: 40px; color: #fff; display: flex; flex-direction: column; justify-content: space-between; }
.contact-info h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; color: #fff; }
.contact-info p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.7); margin-bottom: 24px; }
.info-item { display: flex; align-items: flex-start; gap: 14px; padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.info-item:last-child { border-bottom: none; }
.info-item svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }
.info-item .label { font-size: 12px; color: rgba(255, 255, 255, 0.5); display: block; margin-bottom: 4px; }
.info-item .value { font-size: 15px; font-weight: 600; color: #fff; }
.contact-info .btn { margin-top: 32px; width: 100%; }

.cta-band { background: var(--primary); padding: 64px 0; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat; opacity: 0.12; }
.cta-band-inner { position: relative; z-index: 1; text-align: center; }
.cta-band h2 { font-size: 36px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.cta-band p { font-size: 16px; color: rgba(255, 255, 255, 0.85); margin-bottom: 32px; }
.cta-band .btn-white { margin: 0 8px; }

.site-footer { background: var(--bg-dark); color: #C9C6C1; position: relative; }
.footer-top-line { height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding: 64px 0 40px; }
.footer-about .logo { color: #fff; margin-bottom: 16px; }
.footer-about p { font-size: 14px; line-height: 1.7; color: #C9C6C1; }
.footer-col h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: 14px; color: #C9C6C1; transition: var(--transition); }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: #C9C6C1; margin-bottom: 12px; }
.footer-contact li svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.5); }

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { height: 400px; }
  .pin-3 { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card.large { grid-column: span 2; }
  .service-card.small { grid-column: span 1; }
  .service-card.small.service-card-3 { margin-top: 0; }
  .stats-grid { grid-template-columns: 2fr 2fr; }
  .solution-row { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; background: var(--bg-main); border-bottom: 1px solid var(--border); padding: 20px 24px; flex-direction: column; align-items: flex-start; gap: 8px; box-shadow: 0 8px 24px rgba(28,28,30,0.08); }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 17px; padding: 10px 0; width: 100%; }
  .nav-link:after { display: none; }
  .header-cta { gap: 8px; }
  .header-cta .btn { padding: 8px 16px; font-size: 13px; }
  .mobile-toggle { display: flex; }
  .hero { padding: 56px 0 64px; }
  .hero h1 { font-size: 34px; line-height: 1.3; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card.large { grid-column: span 1; }
  .service-card.small { grid-column: span 1; }
  .cases-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 2fr 2fr; }
  .stat-number { font-size: 32px; }
  .solution-row { padding: 32px 0; }
  .contact-form { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 24px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { height: 60px; }
  .logo { font-size: 20px; }
  .header-cta .btn-secondary { display: none; }
  .hero h1 { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .hero-cta .btn { padding: 12px 24px; font-size: 15px; }
  .hero-trust { gap: 6px; }
  .trust-pill { font-size: 12px; padding: 4px 10px; }
  .hero-visual { height: 280px; }
  .section-title { font-size: 26px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-number { font-size: 28px; }
  .btn { padding: 12px 20px; font-size: 15px; }
  .case-cover-wrap { height: 180px; }
  .contact-info { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* roulang page: category1 */
:root {
  --primary: #E60023;
  --primary-hover: #C8001F;
  --primary-light: #FFE8E8;
  --accent: #FF6B35;
  --bg-main: #FFFDF8;
  --bg-gray: #F5F1EA;
  --bg-dark: #1C1C1E;
  --text-main: #1C1C1E;
  --text-secondary: #5C5A56;
  --text-aux: #8A8780;
  --border: #E8E2D8;
  --success: #2E7D5B;
  --radius-card: 16px;
  --radius-small: 8px;
  --radius-btn: 999px;
  --shadow-card: 0 8px 24px rgba(28, 28, 30, 0.06);
  --shadow-hover: 0 16px 40px rgba(28, 28, 30, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); background: var(--bg-main); color: var(--text-main); line-height: 1.6; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 16px; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600; line-height: 1.2; transition: var(--transition); border: 1px solid transparent; cursor: pointer; }
.btn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230, 0, 35, 0.25); }
.btn-secondary { background: transparent; border-color: var(--text-main); color: var(--text-main); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-outline-light { background: transparent; border-color: rgba(255, 255, 255, 0.7); color: #fff; }
.btn-outline-light:hover { border-color: #fff; background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 253, 248, 0.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: 0 4px 20px rgba(28, 28, 30, 0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 800; color: var(--text-main); letter-spacing: -0.5px; }
.logo svg { width: 28px; height: 28px; flex-shrink: 0; }
.logo span { white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 15px; font-weight: 500; color: var(--text-secondary); position: relative; padding: 6px 0; }
.nav-link:after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--primary); border-radius: 2px; transition: width 0.3s; }
.nav-link:hover, .nav-link.active { color: var(--text-main); }
.nav-link.active:after { width: 100%; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { padding: 10px 22px; font-size: 14px; }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition); }
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.category-banner { position: relative; padding: 72px 0 88px; overflow: hidden; }
.category-banner-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.category-banner-overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(28, 28, 30, 0.86) 0%, rgba(28, 28, 30, 0.62) 60%, rgba(28, 28, 30, 0.35) 100%); }
.category-banner-content { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.7); margin-bottom: 20px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.7); transition: var(--transition); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: 0.5; }
.category-banner h1 { font-size: 44px; line-height: 1.25; font-weight: 800; letter-spacing: -0.5px; color: #fff; margin-bottom: 16px; }
.category-banner h1 .highlight { color: var(--accent); }
.category-banner-desc { font-size: 17px; line-height: 1.75; color: rgba(255, 255, 255, 0.85); max-width: 620px; }
.banner-stats { display: flex; gap: 28px; margin-top: 28px; flex-wrap: wrap; }
.banner-stat { display: flex; flex-direction: column; }
.banner-stat strong { font-size: 28px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.banner-stat span { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-top: 4px; }

.filter-bar-wrap { background: var(--bg-main); border-bottom: 1px solid var(--border); padding: 20px 0; }
.filter-tabs { display: flex; gap: 10px; flex-wrap: wrap; }
.filter-tab { display: inline-flex; align-items: center; gap: 6px; padding: 9px 20px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--text-secondary); background: var(--bg-gray); border: 1px solid var(--border); transition: var(--transition); cursor: pointer; }
.filter-tab:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-light); }
.filter-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(230, 0, 35, 0.2); }
.filter-tab .tab-count { font-size: 12px; font-weight: 600; opacity: 0.7; }

.category-main-wrap { padding: 64px 0 88px; background: var(--bg-main); }
.category-layout { display: grid; grid-template-columns: 3fr 9fr; gap: 40px; align-items: start; }
.filter-panel { position: sticky; top: 96px; background: var(--bg-gray); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 24px; }
.filter-panel-title { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 700; color: var(--text-main); margin-bottom: 20px; }
.filter-panel-title svg { width: 18px; height: 18px; }
.filter-group { margin-bottom: 24px; }
.filter-group:last-child { margin-bottom: 0; }
.filter-group-title { font-size: 13px; font-weight: 600; color: var(--text-aux); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.filter-group-list { display: flex; flex-direction: column; gap: 8px; }
.filter-item { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-secondary); padding: 7px 12px; border-radius: 8px; transition: var(--transition); cursor: pointer; }
.filter-item:hover { background: var(--primary-light); color: var(--primary); }
.filter-item.active { background: var(--primary); color: #fff; font-weight: 600; }
.filter-item .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.6; }

.masonry-grid { columns: 3; column-gap: 24px; }
.masonry-item { break-inside: avoid; margin-bottom: 24px; }
.category-card { position: relative; border-radius: var(--radius-card); overflow: hidden; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: var(--transition); display: block; }
.category-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.category-card-cover-wrap { position: relative; overflow: hidden; aspect-ratio: 4 / 3; }
.category-card-cover { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .category-card-cover { transform: scale(1.03); }
.category-card-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(28, 28, 30, 0.1) 0%, rgba(28, 28, 30, 0.55) 100%); opacity: 0.6; transition: var(--transition); }
.category-card:hover .category-card-overlay { opacity: 0.8; }
.category-card-tag { position: absolute; top: 16px; left: 16px; background: rgba(255, 255, 255, 0.92); color: var(--primary); font-size: 13px; font-weight: 700; padding: 4px 12px; border-radius: 999px; backdrop-filter: blur(4px); }
.category-card-body { padding: 20px 22px 22px; }
.category-card-title { font-size: 18px; font-weight: 700; line-height: 1.4; color: var(--text-main); margin-bottom: 8px; }
.category-card-desc { font-size: 14px; line-height: 1.6; color: var(--text-secondary); margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.category-card-meta { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 14px; }
.card-stats { display: flex; gap: 12px; }
.card-stat { display: flex; align-items: center; gap: 4px; font-size: 13px; font-weight: 600; color: var(--text-aux); }
.card-stat svg { width: 14px; height: 14px; }
.card-enter { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 600; color: var(--primary); transition: var(--transition); }
.card-enter:hover { gap: 8px; color: var(--primary-hover); }
.card-enter svg { width: 16px; height: 16px; }

.section { padding: 96px 0; }
.cat-process { background: var(--bg-gray); padding: 96px 0; }
.section-label { display: inline-flex; align-items: center; gap: 8px; background: var(--primary-light); color: var(--primary); padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.section-title { font-size: 32px; line-height: 1.3; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 16px; color: var(--text-main); }
.section-desc { font-size: 16px; line-height: 1.7; color: var(--text-secondary); max-width: 680px; margin-bottom: 48px; }
.section-header { display: flex; flex-direction: column; align-items: flex-start; margin-bottom: 16px; }
.section-header .section-title { margin-bottom: 8px; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.process-item { background: var(--bg-main); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 32px; transition: var(--transition); position: relative; }
.process-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.process-number { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 12px; background: var(--primary); color: #fff; font-size: 20px; font-weight: 800; margin-bottom: 18px; }
.process-title { font-size: 20px; font-weight: 700; color: var(--text-main); margin-bottom: 10px; }
.process-desc { font-size: 15px; line-height: 1.65; color: var(--text-secondary); }
.process-arrow { position: absolute; right: 24px; top: 36px; color: var(--border); width: 28px; height: 28px; }

.cat-faq { padding: 96px 0; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 20px 0; font-size: 17px; font-weight: 600; color: var(--text-main); text-align: left; transition: var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--bg-gray); display: flex; align-items: center; justify-content: center; transition: transform 0.3s ease, background 0.3s ease; margin-left: 16px; position: relative; }
.faq-icon:before, .faq-icon:after { content: ""; position: absolute; background: var(--text-main); border-radius: 2px; transition: background 0.3s ease; }
.faq-icon:before { width: 10px; height: 2px; }
.faq-icon:after { width: 2px; height: 10px; }
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); }
.faq-item.active .faq-icon:before, .faq-item.active .faq-icon:after { background: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.faq-answer-inner { padding: 0 0 20px; font-size: 15px; line-height: 1.75; color: var(--text-secondary); }
.faq-answer-inner strong { color: var(--text-main); }

.cta-band { position: relative; padding: 88px 0; background: var(--primary); overflow: hidden; }
.cta-band-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.15; }
.cta-band-content { position: relative; z-index: 2; text-align: center; }
.cta-band h2 { font-size: 34px; line-height: 1.3; font-weight: 800; color: #fff; margin-bottom: 14px; letter-spacing: -0.3px; }
.cta-band p { font-size: 16px; line-height: 1.7; color: rgba(255, 255, 255, 0.8); max-width: 560px; margin: 0 auto 32px; }
.cta-band-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: var(--bg-dark); color: #C9C6C1; }
.footer-top-line { height: 4px; background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%); border-radius: 0 0 4px 4px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; padding: 64px 0 48px; }
.footer-about .logo { color: #fff; margin-bottom: 16px; }
.footer-about p { font-size: 14px; line-height: 1.7; color: #9A978F; max-width: 320px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: #C9C6C1; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #C9C6C1; }
.footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; opacity: 0.7; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 20px 0; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: #8A8780; }

@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .category-layout { grid-template-columns: 1fr; gap: 32px; }
  .filter-panel { position: static; display: none; }
  .masonry-grid { columns: 2; column-gap: 20px; }
  .process-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .process-item { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .section, .cat-process, .cat-faq { padding: 56px 0; }
  .container { padding: 0 16px; }
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--bg-main); flex-direction: column; align-items: stretch; padding: 16px 24px 24px; gap: 0; border-bottom: 1px solid var(--border); box-shadow: 0 20px 32px rgba(28, 28, 30, 0.1); }
  .nav-links.open { display: flex; }
  .nav-link { padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--border); }
  .nav-link:after { display: none; }
  .nav-link.active { color: var(--primary); font-weight: 700; }
  .mobile-toggle { display: flex; }
  .header-cta { display: none; }
  .header-cta.mobile-cta { display: flex; gap: 10px; padding-top: 16px; }
  .header-cta.mobile-cta .btn { flex: 1; }
  .category-banner { padding: 56px 0 64px; }
  .category-banner h1 { font-size: 32px; line-height: 1.3; }
  .category-banner-desc { font-size: 15px; }
  .banner-stats { gap: 16px; }
  .filter-bar-wrap { padding: 16px 0; }
  .filter-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .filter-tab { white-space: nowrap; }
  .category-main-wrap { padding: 40px 0 56px; }
  .masonry-grid { columns: 1; gap: 0; }
  .masonry-item { margin-bottom: 16px; }
  .process-grid { grid-template-columns: 1fr; gap: 16px; }
  .process-arrow { display: none; }
  .section-title { font-size: 26px; line-height: 1.35; }
  .cta-band { padding: 56px 0; }
  .cta-band h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 48px 0 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .faq-question { font-size: 15px; }
}

@media (max-width: 520px) {
  .header-inner { height: 64px; }
  .logo { font-size: 20px; }
  .logo svg { width: 24px; height: 24px; }
  .btn { padding: 12px 20px; font-size: 14px; width: 100%; }
  .hero-cta { gap: 10px; }
  .cta-band-actions { flex-direction: column; width: 100%; }
  .cta-band-actions .btn { width: 100%; }
  .category-banner h1 { font-size: 28px; }
  .masonry-grid { columns: 1; }
}