/* roulang page: index */
:root {
  --bg-main: #141619;
  --bg-deep: #121214;
  --bg-alt: #1B1E24;
  --bg-card: #1F232B;
  --border-color: rgba(255,255,255,0.08);
  --brand: #E8A33C;
  --brand-hover: #F0B95A;
  --brand-dim: #C9852E;
  --heading-text: #F5F5F2;
  --body-text: #C8C8C8;
  --muted-text: #8A8A8A;
  --radius-card: 10px;
  --radius-btn: 8px;
  --radius-pill: 100px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-hover: 0 6px 20px rgba(0,0,0,0.4);
  --transition-1: 0.3s ease;
  --container-width: 1140px;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background: var(--bg-main);
  color: var(--body-text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width:100%; display:block; }
a { color: var(--brand); text-decoration:none; transition: color var(--transition-1); }
a:hover { color: var(--brand-hover); }
a:focus-visible { outline:2px solid var(--brand); outline-offset:2px; }
button:focus-visible, .button:focus-visible { outline:2px solid var(--brand); outline-offset:2px; }
h1, h2, h3, h4, h5, h6 { color: var(--heading-text); font-weight:700; line-height:1.3; letter-spacing:0.01em; }
h1 { font-size: clamp(1.8rem, 4vw, 2.7rem); }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.4rem); font-weight:600; }
.container { max-width: var(--container-width); margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section-alt { background: var(--bg-alt); }
@media (max-width:767px) {
  .section { padding:56px 0; }
}

/* 面包屑 */
.breadcrumbs { padding:12px 0; background:transparent; }
.breadcrumbs a, .breadcrumbs span { font-size:0.85rem; color: var(--muted-text); }
.breadcrumbs a + span, .breadcrumbs span + span { color: var(--brand); }

/* 页头 */
.page-header { padding:48px 0 24px; }
.page-header h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom:8px; }
.page-header .lead { font-size:1rem; color: var(--muted-text); max-width:640px; margin-bottom:16px; }

/* 筛选标签 */
.filter-bar { display:flex; flex-wrap:wrap; gap:10px; margin:20px 0 28px; }
.pill-tag {
  display:inline-block;
  padding:6px 16px;
  border-radius: var(--radius-pill);
  font-size:0.85rem;
  background: rgba(232,163,60,0.12);
  color: var(--brand);
  border:1px solid transparent;
  cursor:pointer;
  transition: all var(--transition-1);
}
.pill-tag:hover { background: rgba(232,163,60,0.2); color: var(--brand-hover); border-color: rgba(232,163,60,0.3); }
.pill-tag.active { background: var(--brand); color:#141619; font-weight:600; }

/* 导航 */
.site-header {
  position: sticky;
  top:0;
  z-index:1000;
  background: rgba(18,18,20,0.9);
  backdrop-filter: blur(12px);
  border-bottom:1px solid var(--border-color);
  transition: background 0.3s ease;
}
.site-header.scrolled { background: rgba(18,18,20,0.98); }
.nav-wrap { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; padding:14px 0; }
.brand-logo { display:flex; align-items:center; gap:10px; font-size:1.5rem; font-weight:700; color: var(--heading-text); }
.brand-logo .logo-icon {
  width:36px; height:36px; border-radius:50%;
  border:2px solid var(--brand);
  display:flex; align-items:center; justify-content:center;
  position:relative;
  flex-shrink:0;
}
.brand-logo .logo-icon::before {
  content:"";
  width:0; height:0;
  border-left:10px solid var(--brand);
  border-top:6px solid transparent;
  border-bottom:6px solid transparent;
  margin-left:2px;
}
.nav-links { display:flex; align-items:center; gap:28px; flex-wrap:wrap; }
.nav-links > li { list-style:none; }
.nav-links > li a { font-size:0.95rem; font-weight:500; color: var(--body-text); padding:6px 2px; position:relative; transition: color var(--transition-1); }
.nav-links > li a::after { content:""; position:absolute; left:0; bottom:0; width:0; height:2px; background: var(--brand); transition: width var(--transition-1); }
.nav-links > li a:hover { color: var(--brand-hover); }
.nav-links > li a:hover::after, .nav-links > li a.active::after { width:100%; }
.nav-links > li a.active { color: var(--brand); }
.nav-cta { display:flex; align-items:center; gap:12px; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:6px; font-size:0.95rem; font-weight:600; border-radius: var(--radius-btn); padding:10px 22px; cursor:pointer; transition: all var(--transition-1); border:1px solid transparent; min-height:42px; }
.btn-brand { background: var(--brand); color:#141619; }
.btn-brand:hover { background: var(--brand-hover); color:#141619; transform: translateY(-1px); box-shadow:0 4px 12px rgba(232,163,60,0.3); }
.btn-brand:active { transform: translateY(1px); box-shadow:0 2px 6px rgba(232,163,60,0.2); }
.btn-outline { background:transparent; border-color: rgba(232,163,60,0.5); color: var(--brand); }
.btn-outline:hover { background: rgba(232,163,60,0.1); color: var(--brand-hover); border-color: var(--brand-hover); }
.btn-outline:active { background: rgba(232,163,60,0.15); }
.btn-lg { min-height:52px; padding:14px 36px; font-size:1.05rem; }
.mobile-menu-toggle { display:none; background:none; border:none; color: var(--heading-text); font-size:1.5rem; cursor:pointer; padding:8px; }
@media (max-width:1023px) {
  .nav-links, .nav-cta { display:none; width:100%; }
  .nav-links.open, .nav-cta.open { display:flex; }
  .nav-cta.open { flex-direction:column; padding-top:12px; order:-1; }
  .nav-cta.open .btn { width:100%; }
  .nav-wrap { justify-content:space-between; position:relative; }
  .mobile-menu-toggle { display:block; }
  .nav-links { flex-direction:column; gap:14px; padding:16px 0; border-top:1px solid var(--border-color); margin-top:12px; }
}

/* Hero - Bento */
.hero {
  background: var(--bg-main);
  padding:20px 0 80px;
  position:relative;
  overflow:hidden;
}
.hero-bg {
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse at 8% 20%, rgba(232,163,60,0.06), transparent 45%),
    radial-gradient(ellipse at 70% 60%, rgba(232,163,60,0.03), transparent 40%);
  pointer-events:none;
}
.hero-grid { display:grid; grid-template-columns:1.2fr 0.8fr; gap:24px; align-items:stretch; position:relative; z-index:1; }
.bento-main {
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:12px;
  padding:36px;
  background-image:linear-gradient(rgba(20,22,25,0.88), rgba(20,22,25,0.88)), url('/assets/images/backpic/back-1.jpg');
  background-size:cover;
  background-position:center;
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-height:420px;
}
.bento-main .tag-line { display:inline-flex; align-items:center; gap:8px; font-size:0.8rem; color: var(--brand); background:rgba(232,163,60,0.12); padding:5px 14px; border-radius:var(--radius-pill); width:fit-content; }
.bento-main .tag-line i { font-size:0.75rem; }
.bento-main h1 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); margin:16px 0 12px; }
.bento-main .lead { font-size:1rem; color: var(--body-text); max-width:520px; margin-bottom:24px; }
.hero-cta { display:flex; gap:14px; flex-wrap:wrap; }
.bento-side { display:flex; flex-direction:column; gap:24px; }
.bento-feature {
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:12px;
  padding:24px 28px;
  flex:1;
  transition: border-color var(--transition-1), box-shadow var(--transition-1);
}
.bento-feature:hover { border-color:rgba(232,163,60,0.4); box-shadow: var(--shadow-hover); }
.bento-feature .feature-icon { color:var(--brand); font-size:1.4rem; margin-bottom:10px; }
.bento-feature h3 { font-size:1.1rem; margin-bottom:6px; }
.bento-feature p { font-size:0.88rem; color: var(--muted-text); margin:0; }
.bento-cta {
  background:linear-gradient(135deg, rgba(232,163,60,0.12), rgba(232,163,60,0.04));
  border:1px solid rgba(232,163,60,0.2);
  border-radius:12px;
  padding:24px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.bento-cta .data-item { text-align:center; }
.bento-cta .data-num { font-family:Georgia, serif; font-size:2rem; color:var(--brand); font-variant-numeric:tabular-nums; line-height:1.2; }
.bento-cta .data-label { font-size:0.8rem; color:var(--muted-text); }
@media (max-width:1023px) {
  .hero-grid { grid-template-columns:1fr; }
  .bento-main { min-height:340px; padding:28px; }
  .bento-side { flex-direction:row; }
  .bento-feature { flex:1; }
  .bento-cta { flex-direction:column; align-items:flex-start; }
}
@media (max-width:767px) {
  .hero { padding:12px 0 48px; }
  .bento-main { padding:24px; min-height:300px; }
  .bento-side { flex-direction:column; }
  .hero-cta .btn { width:100%; }
}

/* 痛点区 */
.problem-section { padding:80px 0; }
.problem-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.problem-list { list-style:none; }
.problem-item { display:flex; align-items:flex-start; gap:18px; padding:18px 0; border-bottom:1px solid var(--border-color); }
.problem-item:last-child { border-bottom:none; }
.problem-line { width:28px; height:2px; background:var(--brand); flex-shrink:0; margin-top:16px; }
.problem-item p { margin:0; font-size:1rem; line-height:1.6; color:var(--body-text); }
.problem-item p strong { display:block; color:var(--heading-text); font-size:1.05rem; margin-bottom:2px; font-weight:600; }
.problem-img-wrap { border-radius:12px; overflow:hidden; border:1px solid var(--border-color); box-shadow: var(--shadow-card); }
.problem-img-wrap img { width:100%; height:100%; object-fit:cover; }
@media (max-width:1023px) {
  .problem-grid { grid-template-columns:1fr; gap:28px; }
}

/* 服务/方案区 */
.service-section { padding:80px 0; background:var(--bg-alt); }
.service-grid { display:grid; grid-template-columns:1fr; gap:32px; } /* 将改为上下堆叠 */
.service-row { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.service-row + .service-row { margin-top:56px; }
.service-text h3 { font-size:1.2rem; margin-bottom:8px; }
.service-text p { color:var(--body-text); margin:0; }
.service-visual {
  border-radius:12px;
  border:1px solid var(--border-color);
  background:linear-gradient(135deg, rgba(20,22,25,0.8), rgba(31,35,43,0.9));
  min-height:220px;
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
}
.service-visual img { width:100%; height:100%; object-fit:cover; opacity:0.6; transition: opacity var(--transition-1); }
.service-visual:hover img { opacity:0.8; }
.play-mock {
  position:absolute;
  width:56px; height:56px;
  background:var(--brand);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 4px 18px rgba(232,163,60,0.4);
}
.play-mock::before { content:""; width:0; height:0; border-left:14px solid #141619; border-top:8px solid transparent; border-bottom:8px solid transparent; margin-left:3px; }
@media (max-width:1023px) {
  .service-row { grid-template-columns:1fr; gap:20px; }
  .service-row + .service-row { margin-top:36px; }
}
/* 数据区 */
.stats-section { padding:64px 0; }
.stats-grid { display:flex; align-items:center; justify-content:space-around; flex-wrap:wrap; }
.stat-item { text-align:center; padding:0 40px; position:relative; flex:1; min-width:160px; }
.stat-item + .stat-item::before { content:""; position:absolute; left:0; top:50%; transform:translateY(-50%); height:48px; width:1px; background:rgba(255,255,255,0.1); }
.stat-num { font-family:Georgia, serif; font-size:clamp(1.8rem, 3vw, 2.3rem); font-weight:700; color:var(--brand); line-height:1.3; font-variant-numeric:tabular-nums; }
.stat-label { font-size:0.85rem; color:var(--muted-text); margin-top:4px; }
@media (max-width:767px) {
  .stats-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
  .stat-item { padding:0; }
  .stat-item + .stat-item::before { display:none; }
}

/* 证言区 */
.testimonials-section { background:var(--bg-alt); }
.t-quote {
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:10px;
  padding:32px;
  margin-bottom:24px;
  position:relative;
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-1), box-shadow var(--transition-1);
}
.t-quote:hover { border-color:rgba(232,163,60,0.4); box-shadow: var(--shadow-hover); }
.t-quote::before { content:"“"; position:absolute; top:-16px; left:18px; font-size:5rem; color:rgba(232,163,60,0.3); font-family:Georgia, serif; line-height:1; }
.t-quote p { font-size:0.95rem; line-height:1.7; margin:8px 0 16px; position:relative; z-index:1; color:var(--body-text); }
.t-quote .t-role { display:inline-block; font-size:0.78rem; color:var(--brand); background:rgba(232,163,60,0.12); padding:3px 14px; border-radius:var(--radius-pill); }

/* FAQ区 */
.faq-section { padding:80px 0; }
.accordion-item {
  background:var(--bg-alt);
  border-left:3px solid rgba(255,255,255,0.2);
  padding:18px 24px;
  margin-bottom:14px;
  transition: border-color var(--transition-1), background var(--transition-1);
  border-radius:0 8px 8px 0;
}
.accordion-item.active { border-left-color:var(--brand); background:#1E222A; }
.accordion-item .faq-q { font-size:1rem; font-weight:600; color:var(--heading-text); cursor:pointer; display:flex; justify-content:space-between; align-items:center; }
.accordion-item .faq-q .faq-icon { font-size:0.85rem; color:var(--brand); transition: transform 0.3s ease; }
.accordion-item.active .faq-q .faq-icon { transform: rotate(180deg); }
.accordion-item .faq-a { max-height:0; overflow:hidden; transition: max-height 0.45s ease, padding 0.3s ease; }
.accordion-item.active .faq-a { max-height:500px; padding-top:12px; }
.faq-a p { color:var(--muted-text); line-height:1.7; margin:0; font-size:0.92rem; }

/* CTA区 */
.cta-final {
  background:#0D0F12;
  border:1px solid rgba(232,163,60,0.25);
  border-radius:16px;
  padding:72px 48px;
  text-align:center;
  position:relative;
  overflow:hidden;
  margin:80px 0 0;
}
.cta-final::before { content:""; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:320px; height:320px; background:radial-gradient(circle, rgba(232,163,60,0.07), transparent 68%); pointer-events:none; }
.cta-inner { position:relative; z-index:1; }
.cta-inner h2 { margin-bottom:8px; font-size:clamp(1.3rem, 2.4vw, 1.8rem); }
.cta-inner p { max-width:520px; margin:0 auto 28px; color:var(--muted-text); }
.cta-buttons { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.cta-buttons .btn { min-height:52px; padding:14px 36px; font-size:1.05rem; }
@media (max-width:767px) {
  .cta-final { padding:48px 24px; }
  .cta-buttons .btn { width:100%; }
}

/* 页脚 */
.site-footer { background:#0D0F12; border-top:1px solid var(--border-color); padding:64px 0 24px; margin-top:80px; }
.footer-grid { display:grid; grid-template-columns:1fr 1fr 1fr; gap:40px; margin-bottom:40px; }
.footer-brand .brand-logo { font-size:1.2rem; }
.footer-brand p { font-size:0.88rem; color:var(--muted-text); max-width:280px; margin-top:12px; }
.footer-links h4 { font-size:0.95rem; color:var(--heading-text); margin-bottom:14px; }
.footer-links ul { list-style:none; }
.footer-links li { margin-bottom:8px; }
.footer-links a { font-size:0.88rem; color:var(--muted-text); transition: color var(--transition-1); }
.footer-links a:hover { color:var(--brand); }
.footer-bottom { border-top:1px solid var(--border-color); padding-top:24px; text-align:center; font-size:0.85rem; color:var(--muted-text); }
@media (max-width:1023px) {
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:767px) {
  .footer-grid { grid-template-columns:1fr; gap:24px; }
}
/* 通用区块标题 */
.section-title { font-size:clamp(1.4rem, 2.5vw, 2rem); text-align:center; margin-bottom:10px; }
.section-sub { font-size:1rem; color:var(--muted-text); text-align:center; max-width:640px; margin:0 auto 48px; }

/* 资讯列表区 */
.news-section { padding:80px 0; }
.news-grid { display:grid; grid-template-columns:1fr 1fr; gap:32px; }
.news-list { list-style:none; }
.news-item { padding:16px 0; border-bottom:1px solid var(--border-color); }
.news-item:last-child { border-bottom:none; }
.news-item a { display:block; font-size:0.92rem; line-height:1.5; color:var(--heading-text); transition: color var(--transition-1); }
.news-item a:hover { color:var(--brand); }
.news-item .news-date { font-size:0.8rem; color:var(--muted-text); margin-top:4px; display:block; }
.news-list-wrap h3 { font-size:1rem; color:var(--heading-text); margin-bottom:8px; padding-bottom:10px; border-bottom:2px solid rgba(232,163,60,0.3); }
.news-tags { display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.news-tags a { font-size:0.78rem; padding:4px 12px; border-radius:var(--radius-pill); background:rgba(232,163,60,0.12); color:var(--brand); }
.news-cover img { width:100%; border-radius:10px; border:1px solid var(--border-color); object-fit:cover; height:220px; }
.news-cover { margin-bottom:12px; }
@media (max-width:1023px) {
  .news-grid { grid-template-columns:1fr; gap:24px; }
}

/* About 区块 */
.about-section { padding:80px 0; }
.about-card { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; background:var(--bg-card); border:1px solid var(--border-color); border-radius:14px; padding:40px; }
.about-img img { border-radius:10px; object-fit:cover; height:320px; width:100%; }
.about-desc h2 { margin-bottom:12px; }
.about-desc p { font-size:0.95rem; color:var(--body-text); line-height:1.75; margin-bottom:12px; }
.about-desc ul { list-style:none; margin-top:16px; }
.about-desc ul li { padding:6px 0; display:flex; align-items:flex-start; gap:10px; font-size:0.92rem; }
.about-desc ul li i { color:var(--brand); margin-top:4px; width:14px; flex-shrink:0; }
@media (max-width:1023px) {
  .about-card { grid-template-columns:1fr; padding:24px; }
  .about-img img { height:260px; }
  .about-desc ul li { padding:4px 0; }
}

/* roulang page: category1 */
:root {
  --bg-main: #141619;
  --bg-deep: #121214;
  --bg-alt: #1B1E24;
  --bg-card: #1F232B;
  --border-color: rgba(255,255,255,0.08);
  --brand: #E8A33C;
  --brand-hover: #F0B95A;
  --brand-dim: #C9852E;
  --heading-text: #F5F5F2;
  --body-text: #C8C8C8;
  --muted-text: #8A8A8A;
  --radius-card: 10px;
  --radius-btn: 8px;
  --radius-pill: 100px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-hover: 0 6px 20px rgba(0,0,0,0.4);
  --transition-1: 0.3s ease;
  --container-width: 1140px;
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg-main);
  color: var(--body-text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}
*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; transition: color var(--transition-1), border-color var(--transition-1), background var(--transition-1); }
a:hover { color: var(--brand-hover); }
a:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
button:focus-visible, .btn:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
ul { margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6 { color: var(--heading-text); margin: 0 0 0.5em; line-height: 1.3; font-weight: 700; }
p { margin: 0 0 1em; }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 10px; }
.section-head p { color: var(--muted-text); max-width: 560px; margin: 0 auto; }

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(18, 18, 20, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: background 0.3s ease;
}
.site-header.scrolled { background: rgba(18, 18, 20, 0.98); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 14px 0; }
.brand-logo { display: flex; align-items: center; gap: 10px; font-size: 1.5rem; font-weight: 700; color: var(--heading-text); }
.brand-logo .logo-icon {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid var(--brand);
  display: flex; align-items: center; justify-content: center;
  position: relative; flex-shrink: 0;
}
.brand-logo .logo-icon::before {
  content: "";
  width: 0; height: 0;
  border-left: 10px solid var(--brand);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  margin-left: 2px;
}
.nav-links { display: none; align-items: center; gap: 28px; flex-wrap: wrap; width: 100%; flex-direction: column; padding: 16px 0; border-top: 1px solid var(--border-color); margin-top: 12px; }
.nav-links > li { list-style: none; }
.nav-links > li a { font-size: 0.95rem; font-weight: 500; color: var(--body-text); padding: 6px 2px; position: relative; transition: color var(--transition-1); }
.nav-links > li a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--brand); transition: width var(--transition-1); }
.nav-links > li a:hover { color: var(--brand-hover); }
.nav-links > li a:hover::after, .nav-links > li a.active::after { width: 100%; }
.nav-links > li a.active { color: var(--brand); }
.nav-cta { display: none; align-items: center; gap: 12px; width: 100%; flex-direction: column; padding-top: 12px; order: -1; }
.nav-cta .btn { width: 100%; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 0.95rem; font-weight: 600; border-radius: var(--radius-btn);
  padding: 10px 22px; cursor: pointer; transition: all var(--transition-1);
  border: 1px solid transparent; min-height: 42px;
  font-family: inherit;
}
.btn-brand { background: var(--brand); color: #141619; }
.btn-brand:hover { background: var(--brand-hover); color: #141619; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,163,60,0.3); }
.btn-brand:active { transform: translateY(1px); box-shadow: 0 2px 6px rgba(232,163,60,0.2); }
.btn-outline { background: transparent; border-color: rgba(232,163,60,0.5); color: var(--brand); }
.btn-outline:hover { background: rgba(232,163,60,0.1); color: var(--brand-hover); border-color: var(--brand-hover); }
.btn-outline:active { background: rgba(232,163,60,0.15); }
.btn-lg { min-height: 52px; padding: 14px 36px; font-size: 1.05rem; }
.mobile-menu-toggle { display: block; background: none; border: none; color: var(--heading-text); font-size: 1.5rem; cursor: pointer; padding: 8px; }
.nav-links.open, .nav-cta.open { display: flex; }

@media (min-width: 769px) {
  .nav-links { display: flex !important; flex-direction: row; gap: 28px; width: auto; border: none; margin: 0; padding: 0; }
  .nav-cta { display: flex !important; flex-direction: row; width: auto; padding: 0; order: initial; }
  .nav-cta .btn { width: auto; }
  .mobile-menu-toggle { display: none; }
  .nav-wrap { flex-wrap: nowrap; }
}

/* ===== 页头 ===== */
.page-header {
  position: relative;
  padding: 64px 0 36px;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(20,22,25,0.97) 0%, rgba(20,22,25,0.82) 60%, rgba(20,22,25,0.6) 100%),
    url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  pointer-events: none;
}
.page-header::after {
  content: "";
  position: absolute;
  top: -40%; left: -10%;
  width: 60%; height: 120%;
  background: radial-gradient(ellipse, rgba(232,163,60,0.07), transparent 60%);
  pointer-events: none;
}
.page-header .container { position: relative; z-index: 1; }
.breadcrumbs { background: transparent; border: none; padding: 0; margin-bottom: 18px; }
.breadcrumbs li { color: var(--muted-text); font-size: 0.85rem; }
.breadcrumbs li a { color: var(--muted-text); }
.breadcrumbs li a:hover { color: var(--brand); }
.breadcrumbs li + li::before { content: "›"; color: var(--muted-text); margin: 0 8px; }
.breadcrumbs li.current { color: var(--brand); }
.page-header h1 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 10px; }
.page-header .lead { font-size: 1.05rem; color: var(--body-text); max-width: 640px; margin-bottom: 24px; line-height: 1.7; }
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; }
.pill-tag {
  display: inline-block;
  padding: 7px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  background: rgba(232,163,60,0.12);
  color: var(--brand);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-1);
  user-select: none;
}
.pill-tag:hover { background: rgba(232,163,60,0.22); color: var(--brand-hover); border-color: rgba(232,163,60,0.35); }
.pill-tag.active { background: var(--brand); color: #141619; font-weight: 600; border-color: var(--brand); }

/* ===== 分类列表 ===== */
.video-section { padding: 56px 0 80px; position: relative; }
.video-card-col { margin-bottom: 8px; }
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  margin-bottom: 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-1), border-color var(--transition-1);
}
@media (min-width: 769px) {
  .video-card { flex-direction: row; }
}
.video-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(232,163,60,0.4);
}
.video-thumb {
  position: relative;
  flex: 0 0 280px;
  min-height: 180px;
  overflow: hidden;
  background: #000;
}
@media (max-width: 768px) {
  .video-thumb { flex: 0 0 auto; width: 100%; min-height: 200px; }
}
.video-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.video-card:hover .video-thumb img { transform: scale(1.03); }
.play-badge {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 54px; height: 54px;
  border-radius: 50%;
  background: rgba(20,22,25,0.72);
  border: 2px solid var(--brand);
  display: flex; align-items: center; justify-content: center;
  color: var(--brand);
  font-size: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.video-card:hover .play-badge { opacity: 1; }
.video-info { padding: 22px 24px; display: flex; flex-direction: column; justify-content: center; flex: 1; }
.video-title { font-size: 1.08rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.video-title a { color: var(--heading-text); transition: color var(--transition-1); }
.video-title a:hover { color: var(--brand-hover); }
.video-desc {
  font-size: 0.9rem; line-height: 1.65; color: var(--body-text);
  margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.badge {
  background: rgba(232,163,60,0.15);
  color: var(--brand);
  font-size: 0.75rem;
  line-height: 1.4;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-weight: 500;
}
.detail-link { margin-left: auto; font-size: 0.9rem; color: var(--brand); display: inline-flex; align-items: center; gap: 5px; }
.detail-link:hover { color: var(--brand-hover); }
@media (max-width: 768px) {
  .detail-link { margin-left: 0; }
  .video-meta { gap: 8px; }
}

/* ===== 分页 ===== */
.pagination-wrap { margin-top: 16px; display: flex; justify-content: center; }
.pagination { display: flex; gap: 6px; list-style: none; flex-wrap: wrap; justify-content: center; }
.pagination li { display: inline-block; }
.pagination li a, .pagination li > span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 42px; height: 42px; padding: 0 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--body-text);
  font-size: 0.95rem;
  transition: all var(--transition-1);
  line-height: 1;
}
.pagination li.current a, .pagination li.current > span {
  background: var(--brand);
  color: #141619;
  font-weight: 600;
  border-color: var(--brand);
}
.pagination li a:hover { border-color: var(--brand); color: var(--brand); background: rgba(232,163,60,0.08); }
.pagination li.disabled a, .pagination li.disabled > span { opacity: 0.4; pointer-events: none; }

/* ===== 平台价值 ===== */
.value-section { background: var(--bg-alt); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.value-card {
  text-align: center;
  padding: 36px 20px 20px;
  border-radius: var(--radius-card);
  transition: background var(--transition-1);
  height: 100%;
}
.value-card:hover { background: rgba(255,255,255,0.02); }
.value-icon {
  width: 66px; height: 66px;
  background: rgba(232,163,60,0.12);
  border: 1px solid rgba(232,163,60,0.25);
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.45rem;
  color: var(--brand);
  margin: 0 auto 20px;
  transition: all var(--transition-1);
}
.value-card:hover .value-icon { background: rgba(232,163,60,0.22); transform: translateY(-3px); }
.value-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.value-card p { color: var(--muted-text); font-size: 0.95rem; margin: 0; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-main); }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--bg-alt);
  border-radius: var(--radius-card);
  border-left: 3px solid var(--muted-text);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item.active { border-left-color: var(--brand); }
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--heading-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: color 0.3s ease;
}
.faq-question:hover { color: var(--brand); }
.faq-question::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--muted-text);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question::after { transform: rotate(180deg); color: var(--brand); }
.faq-answer {
  max-height: 0;
  padding: 0 24px;
  overflow: hidden;
  color: var(--muted-text);
  line-height: 1.7;
  font-size: 0.95rem;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer { max-height: 300px; padding-bottom: 20px; }

/* ===== CTA ===== */
.ghost-cta {
  background: #0D0F12;
  border-top: 1px solid rgba(232,163,60,0.25);
  border-bottom: 1px solid rgba(232,163,60,0.25);
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.ghost-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(232,163,60,0.08), transparent 60%);
  pointer-events: none;
}
.ghost-cta .container { position: relative; z-index: 1; }
.ghost-cta h2 { font-size: clamp(1.6rem, 2.8vw, 2.3rem); margin-bottom: 12px; }
.ghost-cta p { color: var(--muted-text); margin-bottom: 30px; font-size: 1.05rem; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
@media (max-width: 480px) {
  .cta-buttons .btn { width: 100%; }
}

/* ===== 页脚 ===== */
.site-footer { background: #0D0F12; border-top: 1px solid var(--border-color); padding: 56px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .brand-logo { margin-bottom: 14px; }
.footer-brand p { color: var(--muted-text); font-size: 0.9rem; max-width: 300px; }
.footer-links h4 { font-size: 0.95rem; color: var(--heading-text); margin-bottom: 14px; letter-spacing: 0.02em; }
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 8px; }
.footer-links ul li a { color: var(--muted-text); font-size: 0.9rem; }
.footer-links ul li a:hover { color: var(--brand); }
.footer-bottom { border-top: 1px solid var(--border-color); padding-top: 20px; text-align: center; }
.footer-bottom p { color: var(--muted-text); font-size: 0.85rem; margin: 0; line-height: 1.6; }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ===== 响应式通用 ===== */
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .container { padding: 0 20px; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .page-header { padding: 44px 0 28px; }
  .page-header .lead { font-size: 0.95rem; }
  .video-info { padding: 18px 20px; }
  .video-title { font-size: 1rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .filter-bar { gap: 8px; }
  .pill-tag { padding: 6px 14px; font-size: 0.8rem; }
  .value-card { padding: 24px 12px 12px; }
}