/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #D7263D;
  --primary-dark: #A81D2E;
  --accent: #CBA258;
  --dark: #141210;
  --dark-2: #1d1916;
  --light: #F4F0EA;
  --card: #FFFFFF;
  --text: #221d19;
  --text-light: #7c746e;
  --border: #e7ded4;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 12px 28px rgba(0, 0, 0, 0.10);
  --radius: 12px;
  --radius-btn: 8px;
  --radius-tag: 999px;
  --space-section: 64px;
  --space-card: 24px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
}

/* ========== Reset / Base ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color .2s ease;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(215, 38, 61, 0.35);
  outline-offset: 2px;
}
button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
}
ul {
  list-style: none;
}
h1, h2, h3, h4, h5 {
  line-height: 1.3;
  font-weight: 700;
}

/* ========== Container ========== */
.container {
  max-width: 1280px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ========== Header / Nav ========== */
.site-header {
  background: var(--dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 66px;
  padding: 8px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  letter-spacing: -1px;
  box-shadow: 0 4px 12px rgba(215, 38, 61, 0.4);
}
.brand-text {
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .5px;
  white-space: nowrap;
}
.nav-tabs {
  display: flex;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-tag);
  padding: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex: 1;
  justify-content: center;
}
.nav-tabs::-webkit-scrollbar {
  display: none;
}
.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-tag);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
  transition: background .25s ease, color .25s ease;
}
.nav-tab:hover {
  background: rgba(215, 38, 61, 0.25);
  color: #fff;
}
.nav-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(215, 38, 61, 0.35);
}
.nav-cta {
  flex-shrink: 0;
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid var(--accent);
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  padding: 9px 20px;
  border-radius: var(--radius-btn);
  background: transparent;
  transition: background .25s ease, color .25s ease, transform .2s ease;
}
.btn-accent:hover {
  background: var(--accent);
  color: #141210;
  transform: translateY(-1px);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 2px solid transparent;
  transition: all .3s ease;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(215, 38, 61, 0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(215, 38, 61, 0.35);
  color: #fff;
}
.btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--dark);
  border-color: #fff;
}
.btn-light:hover {
  background: var(--accent);
  color: var(--dark);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

/* ========== Hero ========== */
.hero {
  background: var(--dark);
  color: #fff;
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  right: -10%;
  top: 10%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(215, 38, 61, 0.45), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
  mix-blend-mode: luminosity;
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 2;
  padding-top: 70px;
  padding-bottom: 50px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(203, 162, 88, 0.4);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-tag);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  max-width: 560px;
  margin-bottom: 18px;
}
.hero h1 .hl {
  color: var(--primary);
  position: relative;
}
.hero-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 52px;
}
.hero-visual {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: #2a211c;
  aspect-ratio: 4/3;
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-visual .cover-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(20, 18, 16, 0.85);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-tag);
  border-left: 3px solid var(--primary);
  backdrop-filter: blur(6px);
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 28px;
  margin-top: 10px;
}
.hero-stat {
  flex: 1;
  min-width: 120px;
  text-align: center;
  position: relative;
}
.hero-stat:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255, 255, 255, 0.15);
}
.hero-stat .num {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 4px;
}

/* ========== Data Strip ========== */
.data-strip {
  background: var(--dark-2);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
}
.data-strip-item {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  padding: 10px 8px;
}
.data-strip-item i {
  font-size: 24px;
  color: var(--primary);
}
.data-strip-item .d-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.4;
}
.data-strip-item .d-num {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
}

/* ========== Section ========== */
.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}
.section-light {
  background: var(--light);
}
.section-white {
  background: #fff;
}
.section-dark {
  background: var(--dark);
  color: #fff;
}
.section-head {
  margin-bottom: 40px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.35;
}
.section-head p {
  color: var(--text-light);
  margin-top: 10px;
  max-width: 600px;
}

/* ========== Feature ========== */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.feature-row {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.feature-num {
  font-size: 46px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  min-width: 80px;
  border-right: 2px solid var(--border);
  padding-right: 20px;
  font-family: "Georgia", serif;
}
.feature-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.feature-body p {
  color: var(--text-light);
  max-width: 560px;
  font-size: 15px;
}

/* ========== News Cards ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.news-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--dark-2);
}
.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.news-card:hover .news-cover img {
  transform: scale(1.03);
}
.news-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  letter-spacing: .5px;
  z-index: 2;
}
.news-body {
  padding: 20px 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.news-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.45;
  transition: color .2s;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-title:hover {
  color: var(--primary);
}
.news-excerpt {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: auto;
}
.news-time {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 500;
}
.news-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.news-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}
.empty-state {
  text-align: center;
  padding: 56px 20px;
  background: var(--light);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  grid-column: 1 / -1;
}
.empty-state i {
  font-size: 42px;
  color: var(--accent);
  margin-bottom: 14px;
}
.empty-state p {
  color: var(--text-light);
}

/* ========== Scene ========== */
.scene-block {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 60px;
}
.scene-block.reverse {
  flex-direction: row-reverse;
}
.scene-media {
  flex: 1;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--dark-2);
  aspect-ratio: 4/3;
}
.scene-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.scene-content {
  flex: 1;
}
.scene-num {
  font-size: 52px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  font-family: "Georgia", serif;
  margin-bottom: 14px;
}
.scene-content h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}
.scene-content p {
  color: var(--text-light);
  line-height: 1.75;
  margin-bottom: 14px;
}
.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.scene-tags span {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-tag);
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

/* ========== Recommend ========== */
.reco-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.reco-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
}
.reco-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.reco-cover {
  aspect-ratio: 3/2;
  background: var(--dark-2);
  overflow: hidden;
}
.reco-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.reco-card:hover .reco-cover img {
  transform: scale(1.03);
}
.reco-body {
  padding: 20px;
}
.reco-body h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 6px;
}
.reco-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ========== CTA Banner ========== */
.cta-banner {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  padding: 50px 40px;
  text-align: center;
  color: #fff;
}
.cta-banner::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -60%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(215, 38, 61, 0.5), transparent 70%);
  pointer-events: none;
}
.cta-banner h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: #fff;
  position: relative;
  margin-bottom: 12px;
}
.cta-banner p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 28px;
  position: relative;
}
.cta-actions {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.accordion-item {
  background: var(--card);
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}
.accordion-button {
  background: #fff !important;
  color: var(--text) !important;
  font-size: 16px;
  font-weight: 700;
  padding: 18px 24px;
  border-radius: var(--radius) !important;
  position: relative;
}
.accordion-button:not(.collapsed) {
  color: var(--primary) !important;
  box-shadow: inset 3px 0 0 var(--primary) !important;
}
.accordion-button::after {
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  background: none;
  font-size: 16px;
  width: auto;
  height: auto;
  content: "\2b";
  transition: transform .3s ease;
  color: var(--primary);
}
.accordion-button:not(.collapsed)::after {
  content: "\2b";
  transform: rotate(45deg);
  color: var(--primary);
}
.accordion-body {
  padding: 6px 24px 24px;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  background: #fff;
}

/* ========== Social Proof ========== */
.proof-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
  background: #fff;
}
.proof-item {
  text-align: center;
  padding: 10px;
}
.proof-item .p-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
}
.proof-item .p-label {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 4px;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 20px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
  font-size: 16px;
  border-radius: 8px;
}
.footer-brand .brand-text {
  font-size: 17px;
  color: #fff;
  font-weight: 800;
}
.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.footer-link {
  padding: 8px 16px;
  border-radius: var(--radius-tag);
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all .25s ease;
}
.footer-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(203, 162, 88, 0.1);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a:hover {
  color: var(--accent);
}

/* ========== Bottom Bar ========== */
.bottom-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1050;
  background: rgba(20, 18, 16, 0.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  transform: translateY(100%);
  transition: transform .4s ease;
}
.bottom-bar.show {
  transform: translateY(0);
}
.bottom-bar .bb-text {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.bottom-bar .btn {
  padding: 8px 22px;
  font-size: 14px;
}
body {
  padding-bottom: 56px;
}
@media (min-width: 992px) {
  .bottom-bar {
    display: none;
  }
  body {
    padding-bottom: 0;
  }
}

/* ========== Responsive ========== */
@media (max-width: 991.98px) {
  .news-grid,
  .reco-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scene-block,
  .scene-block.reverse {
    flex-direction: column;
    gap: 24px;
  }
  .scene-media {
    width: 100%;
  }
}
@media (max-width: 767.98px) {
  :root {
    --space-section: 40px;
  }
  .main-nav {
    flex-wrap: wrap;
    gap: 8px;
  }
  .brand-text {
    font-size: 16px;
  }
  .nav-tabs {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    padding: 3px;
  }
  .nav-tab {
    padding: 7px 13px;
    font-size: 13px;
  }
  .nav-cta .btn-accent {
    padding: 7px 12px;
    font-size: 13px;
  }
  .nav-cta .btn-accent span {
    display: none;
  }
  .hero {
    min-height: auto;
    padding-top: 40px;
    padding-bottom: 60px;
  }
  .hero .container {
    padding-top: 30px;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-visual {
    margin-top: 30px;
    aspect-ratio: 4/3;
  }
  .hero-stat .num {
    font-size: 22px;
  }
  .hero-stat .label {
    font-size: 12px;
  }
  .hero-stats {
    gap: 12px;
  }
  .hero-stat:not(:last-child)::after {
    display: none;
  }
  .news-grid,
  .reco-grid {
    grid-template-columns: 1fr;
  }
  .feature-row {
    flex-direction: column;
    gap: 14px;
  }
  .feature-num {
    border-right: none;
    border-bottom: 2px solid var(--border);
    padding-right: 0;
    padding-bottom: 6px;
    min-width: 0;
  }
  .cta-banner {
    padding: 36px 20px;
  }
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (min-width: 992px) {
  .container {
    max-width: 1280px;
  }
}

/* roulang page: article */
:root {
  --primary: #D7263D;
  --primary-dark: #B01E32;
  --accent: #CBA258;
  --dark: #141210;
  --light: #F4F0EA;
  --white: #FFFFFF;
  --text: #2B2622;
  --muted: #7A736C;
  --border: #E7E0D8;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.10);
  --radius: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  background: var(--light);
  color: var(--text);
  line-height: 1.7;
  padding-bottom: 64px;
}

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

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

button,
input {
  font-family: inherit;
}

.container {
  max-width: 1280px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Header */
.site-header {
  background: var(--dark);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1020;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

.site-header .container {
  padding-top: 10px;
  padding-bottom: 10px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: #fff;
  white-space: nowrap;
}

.brand-mark {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 8px;
  display: inline-grid;
  place-items: center;
  font-weight: 900;
  color: #fff;
  font-size: 18px;
}

.brand-text {
  font-size: 18px;
  letter-spacing: 1px;
}

.nav-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  flex: 1;
  scrollbar-width: none;
  padding: 4px 2px;
  align-items: center;
}

.nav-tabs::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-tab:hover {
  background: rgba(215, 38, 61, 0.35);
  color: #fff;
}

.nav-tab.active {
  background: var(--primary);
  color: #fff;
}

.nav-cta .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav-cta .btn-accent:hover {
  background: var(--accent);
  color: var(--dark);
  transform: translateY(-1px);
}

/* Article page */
.article-page {
  background: var(--light);
  padding-top: 32px;
  padding-bottom: 64px;
}

.breadcrumb-custom {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.breadcrumb-custom a {
  color: var(--muted);
  transition: color 0.2s ease;
}

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

.breadcrumb-custom .sep {
  margin: 0 8px;
  color: var(--muted);
}

.breadcrumb-custom .current {
  color: var(--text);
}

.article-wrapper {
  max-width: 820px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
}

.article-header {
  margin-bottom: 28px;
}

.article-header h1 {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
}

.article-meta i {
  color: var(--primary);
  margin-right: 5px;
}

.article-body {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.article-body p {
  margin: 0 0 1.2em;
}

.article-body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 1.6em 0 0.8em;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.2em 0 0.6em;
}

.article-body h4 {
  font-size: 1.08rem;
  font-weight: 700;
  margin: 1em 0 0.5em;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
}

.article-body li {
  margin-bottom: 0.4em;
}

.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--light);
  padding: 16px 20px;
  margin: 1.5em 0;
  border-radius: 0 8px 8px 0;
  color: #5A4F45;
}

.article-body img {
  border-radius: var(--radius);
  margin: 1.5em 0;
}

.article-body a {
  color: var(--primary);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

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

.article-body figure {
  margin: 0;
}

.empty-state {
  text-align: center;
  padding: 72px 20px;
  background: var(--light);
  border-radius: var(--radius);
}

.empty-state .empty-icon {
  font-size: 48px;
  color: #C9BFAF;
  margin-bottom: 16px;
}

.empty-state p {
  color: var(--muted);
  margin-bottom: 24px;
}

.article-footer {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.tag-list .tag {
  background: var(--light);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tag-list .tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.article-prevnext {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}

.article-prevnext a {
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  max-width: 48%;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-prevnext a:hover {
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.article-prevnext .next {
  margin-left: auto;
}

/* Related */
.related-section {
  background: var(--white);
  padding: 64px 0;
}

.section-head h2 {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  margin-bottom: 8px;
}

.section-head .section-sub {
  color: var(--muted);
}

.related-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: block;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.related-card .card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--dark);
}

.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.related-card:hover .card-img img {
  transform: scale(1.02);
}

.related-card .card-body {
  padding: 20px;
}

.card-cat {
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.related-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 8px 0 10px;
  line-height: 1.5;
}

.related-card p {
  font-size: 14px;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

.card-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-link {
  color: var(--primary);
  font-weight: 600;
}

/* CTA */
.cta-band {
  background: var(--dark);
  color: #fff;
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}

.cta-band::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(215, 38, 61, 0.45), transparent 70%);
}

.cta-band .cta-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.cta-band h3 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  margin: 0;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.7);
  margin-top: 8px;
  max-width: 640px;
}

.btn-primary-red {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.btn-primary-red:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(215, 38, 61, 0.3);
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 48px 0 24px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.footer-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-link {
  color: rgba(255, 255, 255, 0.75);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
  transition: color 0.2s ease, background 0.2s ease;
}

.footer-link:hover {
  color: #fff;
  background: rgba(215, 38, 61, 0.4);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* Fixed CTA bar */
.fixed-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  background: rgba(20, 18, 16, 0.9);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 10px 0;
  display: flex;
  justify-content: center;
}

.fixed-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: 1280px;
  padding: 0 24px;
}

.fixed-cta-inner span {
  font-size: 14px;
  font-weight: 600;
}

.btn-fixed {
  background: var(--primary);
  color: #fff;
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  transition: background 0.2s ease, transform 0.2s ease;
  white-space: nowrap;
}

.btn-fixed:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 991px) {
  .main-nav {
    flex-wrap: wrap;
  }

  .nav-tabs {
    order: 3;
    flex-basis: 100%;
    padding-top: 6px;
  }

  .nav-cta {
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .article-page {
    padding-top: 20px;
    padding-bottom: 40px;
  }

  .article-wrapper {
    padding: 24px;
  }

  .related-section {
    padding: 40px 0;
  }

  .cta-band {
    padding: 40px 0;
  }

  .footer-top,
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .fixed-cta-inner span {
    display: none;
  }

  .fixed-cta-inner {
    justify-content: center;
  }

  .article-prevnext {
    flex-direction: column;
  }

  .article-prevnext a {
    max-width: 100%;
  }

  .article-prevnext .next {
    margin-left: 0;
  }
}

@media (max-width: 576px) {
  .brand-text {
    font-size: 16px;
  }

  .nav-cta .btn-accent {
    padding: 7px 12px;
    font-size: 13px;
  }

  .article-wrapper {
    padding: 20px;
  }

  .article-meta {
    gap: 10px;
  }

  .article-body {
    font-size: 15px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #D7263D;
  --primary-dark: #A3192B;
  --accent: #CBA258;
  --dark: #141210;
  --dark-2: #201D1A;
  --light: #F4F0EA;
  --card-bg: #FFFFFF;
  --text: #2B2825;
  --text-weak: #6C6862;
  --border: #E8E2DA;
  --shadow: 0 8px 24px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 28px rgba(0,0,0,0.10);
  --radius: 12px;
  --radius-btn: 8px;
  --radius-tag: 999px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--text);
  background: var(--light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
.container { max-width: 1280px; padding-left: 20px; padding-right: 20px; }

/* ===== Header ===== */
.site-header {
  background: var(--dark);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 16px rgba(0,0,0,0.35);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-block;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  line-height: 36px;
  text-align: center;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(215, 38, 61, 0.4);
}
.brand-text {
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.nav-tabs {
  display: flex;
  gap: 6px;
  flex: 1;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.nav-tabs::-webkit-scrollbar { display: none; }
.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-tag);
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.25s ease;
  border: 1px solid transparent;
}
.nav-tab i { font-size: 13px; }
.nav-tab:hover {
  background: rgba(215, 38, 61, 0.25);
  color: #fff;
  border-color: rgba(215, 38, 61, 0.5);
}
.nav-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(215, 38, 61, 0.35);
}
.nav-cta .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  background: transparent;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav-cta .btn-accent:hover {
  background: var(--accent);
  color: var(--dark);
  transform: translateY(-2px);
}
@media (max-width: 991.98px) {
  .main-nav { flex-wrap: wrap; gap: 12px; }
  .nav-tabs { order: 3; width: 100%; justify-content: flex-start; }
  .nav-cta .btn-accent span { display: none; }
  .nav-cta .btn-accent { padding: 10px 14px; }
}
@media (max-width: 575.98px) {
  .site-header { padding: 12px 0; }
  .brand-text { font-size: 17px; }
  .nav-tab { padding: 7px 12px; font-size: 13px; }
}

/* ===== Hero ===== */
.category-hero {
  background: var(--dark);
  padding: 84px 0 70px;
  position: relative;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -100px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(215,38,61,0.45) 0%, rgba(215,38,61,0) 70%);
  border-radius: 50%;
  pointer-events: none;
}
.category-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  pointer-events: none;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  border: 1px solid rgba(203,162,88,0.4);
  background: rgba(203,162,88,0.08);
  padding: 6px 16px;
  border-radius: var(--radius-tag);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.hero-badge i { font-size: 12px; }
.category-hero h1 {
  color: #fff;
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.category-hero h1 span { color: var(--accent); }
.hero-desc {
  color: rgba(255,255,255,0.72);
  font-size: 16px;
  max-width: 620px;
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 32px; }
.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--primary);
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn-primary-custom:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(215,38,61,0.35);
}
.btn-outline-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.55);
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn-outline-custom:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 24px;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  padding: 0 28px;
  border-left: 1px solid rgba(255,255,255,0.15);
}
.hero-stat:first-child { border-left: none; padding-left: 0; }
.hero-stat .num {
  color: var(--accent);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.2;
}
.hero-stat .label {
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  margin-top: 2px;
}
.hero-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.hero-visual .glass-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(20,18,16,0.7);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.2);
}
@media (max-width: 767.98px) {
  .category-hero { padding: 56px 0 48px; }
  .hero-visual { margin-top: 30px; }
  .hero-stat { padding: 0 14px; }
  .hero-stat .num { font-size: 20px; }
}

/* ===== Section common ===== */
.section {
  padding: 64px 0;
}
.section-head {
  margin-bottom: 36px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.section-head .kicker {
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 6px;
}
.section-head h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  margin-bottom: 0;
}
.section-head p {
  max-width: 560px;
  color: var(--text-weak);
  margin-bottom: 0;
  font-size: 14px;
}
.section-light { background: var(--light); }
.section-white { background: #fff; }
.section-dark { background: var(--dark); color: #fff; }

/* ===== Feature list ===== */
.feature-list { margin: 0; padding: 0; list-style: none; }
.feature-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}
.feature-item:first-child { padding-top: 0; }
.feature-item:last-child { border-bottom: none; padding-bottom: 0; }
.feature-index {
  font-size: 52px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}
.feature-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.feature-item p {
  font-size: 15px;
  color: var(--text-weak);
  margin-bottom: 8px;
  max-width: 720px;
}
.feature-item .tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-chip {
  display: inline-block;
  background: rgba(215,38,61,0.08);
  color: var(--primary);
  border: 1px solid rgba(215,38,61,0.15);
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  font-size: 12px;
  font-weight: 600;
}
@media (max-width: 575.98px) {
  .feature-item { grid-template-columns: 56px 1fr; gap: 14px; }
  .feature-index { font-size: 36px; }
}

/* ===== Card grid ===== */
.info-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.info-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--dark-2);
}
.info-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.info-card:hover .card-img img { transform: scale(1.02); }
.info-card .card-img .img-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(145deg, #2b2723, #161412);
}
.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-tag);
  letter-spacing: 0.3px;
  z-index: 2;
}
.info-card .card-body-custom {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.info-card .card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.info-card .card-text {
  font-size: 14px;
  color: var(--text-weak);
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.6;
}
.card-meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-weak);
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.card-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}
.card-link:hover { gap: 8px; }

/* ===== Feature spotlight ===== */
.spot-row {
  display: flex;
  align-items: center;
  margin-bottom: 64px;
}
.spot-row:last-child { margin-bottom: 0; }
.spot-num {
  font-size: 64px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-right: 24px;
  min-width: 80px;
  opacity: 0.7;
}
.spot-content h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
}
.spot-content p {
  color: var(--text-weak);
  font-size: 15px;
  max-width: 520px;
}
.spot-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.spot-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 16/10;
  object-fit: cover;
}
@media (max-width: 991.98px) {
  .spot-row { flex-direction: column; align-items: flex-start; }
  .spot-num { margin-bottom: 12px; }
  .spot-image { margin-top: 20px; }
}

/* ===== Data bar ===== */
.data-bar {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 44px 0;
  color: #fff;
}
.data-item {
  text-align: center;
  padding: 12px 10px;
}
.data-item .data-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.data-item .data-label {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
}
@media (max-width: 767.98px) {
  .data-bar { padding: 32px 0; }
  .data-item .data-num { font-size: 24px; }
}

/* ===== Steps ===== */
.step-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  height: 100%;
  position: relative;
}
.step-card .step-index {
  display: inline-block;
  width: 34px;
  height: 34px;
  line-height: 34px;
  text-align: center;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 16px;
}
.step-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 14px;
  color: var(--text-weak);
  margin: 0;
}

/* ===== Testimonial ===== */
.testimonial {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 28px;
  height: 100%;
}
.testimonial .quote {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 18px;
}
.testimonial .author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial .avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.testimonial .author-name { font-weight: 600; font-size: 14px; }
.testimonial .author-desc { font-size: 13px; color: var(--text-weak); }

/* ===== FAQ ===== */
.faq-accordion .accordion-item {
  background: #fff;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}
.faq-accordion .accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: #fff;
  padding: 18px 20px;
  border: none;
  box-shadow: none;
  position: relative;
  transition: all 0.3s ease;
}
.faq-accordion .accordion-button::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::before { opacity: 1; }
.faq-accordion .accordion-button:focus { box-shadow: none; }
.faq-accordion .accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23D7263D'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 01.75.75v4.5h4.5a.75.75 0 010 1.5h-4.5v4.5a.75.75 0 01-1.5 0v-4.5h-4.5a.75.75 0 010-1.5h4.5v-4.5A.75.75 0 018 2z'/%3E%3C/svg%3E") !important;
  transition: transform 0.3s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23D7263D'%3E%3Cpath fill-rule='evenodd' d='M3 8a.75.75 0 01.75-.75h8.5a.75.75 0 010 1.5h-8.5A.75.75 0 013 8z'/%3E%3C/svg%3E") !important;
}
.faq-accordion .accordion-body {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
  padding: 0 20px 18px;
}

/* ===== CTA banner ===== */
.cta-banner {
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius);
  padding: 48px 50px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-banner p {
  font-size: 15px;
  opacity: 0.85;
  max-width: 620px;
  margin: 0 auto 28px;
}
.cta-banner .btn-white {
  background: #fff;
  color: var(--primary);
  padding: 12px 32px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
}
.cta-banner .btn-white:hover {
  background: var(--dark);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.2);
}
@media (max-width: 575.98px) {
  .cta-banner { padding: 36px 20px; }
}

/* ===== Sticky footer bar ===== */
.sticky-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(20, 18, 16, 0.92);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 12px 0;
  z-index: 1200;
  border-top: 1px solid rgba(255,255,255,0.12);
  display: none;
}
.sticky-bar.show { display: block; }
.sticky-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.sticky-bar .bar-text {
  font-size: 14px;
  font-weight: 600;
}
.sticky-bar .btn-bar {
  background: var(--accent);
  color: var(--dark);
  padding: 8px 20px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  transition: all 0.25s ease;
}
.sticky-bar .btn-bar:hover {
  background: #fff;
}
@media (max-width: 767.98px) {
  .sticky-bar .bar-text { font-size: 12px; }
  .sticky-bar .btn-bar { padding: 8px 14px; font-size: 13px; }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.65);
  padding: 40px 0 90px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.footer-brand .brand-mark {
  width: 30px;
  height: 30px;
  font-size: 16px;
  line-height: 30px;
}
.footer-brand .brand-text {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}
.footer-link {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  transition: color 0.25s ease;
}
.footer-link:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13px;
}
.footer-bottom span:last-child { opacity: 0.5; }
@media (max-width: 575.98px) {
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-links { gap: 14px; }
}

/* ===== Utilities ===== */
.rounded-custom { border-radius: var(--radius) !important; }
.text-accent { color: var(--accent) !important; }

/* roulang page: category2 */
:root {
            --primary: #D7263D;
            --primary-dark: #A81B2D;
            --accent: #CBA258;
            --dark: #141210;
            --light: #F4F0EA;
            --text: #2B2622;
            --muted: #7A7268;
            --border: #E6DED4;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.10);
            --radius: 12px;
            --radius-sm: 8px;
            --space: 72px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        input,
        button {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 20px;
            min-height: 72px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: 0;
            box-shadow: 0 4px 14px rgba(215, 38, 61, 0.4);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }

        .nav-tab i {
            font-size: 13px;
        }

        .nav-tab:hover {
            background: rgba(215, 38, 61, 0.35);
            color: #fff;
            border-color: rgba(215, 38, 61, 0.2);
        }

        .nav-tab:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 6px 18px rgba(215, 38, 61, 0.35);
        }

        .nav-cta {
            margin-left: 12px;
            flex-shrink: 0;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--accent);
            background: transparent;
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s ease;
        }

        .btn-accent:hover {
            background: var(--accent);
            color: var(--dark);
            box-shadow: 0 8px 20px rgba(203, 162, 88, 0.3);
        }

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

        /* ===== Hero ===== */
        .hero {
            background: var(--dark);
            color: #fff;
            padding: 110px 0 80px;
            min-height: 80vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            right: -120px;
            bottom: -120px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(215, 38, 61, 0.5) 0%, rgba(215, 38, 61, 0) 70%);
            pointer-events: none;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            background: rgba(203, 162, 88, 0.15);
            border: 1px solid rgba(203, 162, 88, 0.4);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin-bottom: 0;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 34px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 34px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            border: none;
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            transition: all 0.25s ease;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(215, 38, 61, 0.35);
        }

        .btn-primary-custom:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.4);
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
        }

        .btn-outline-custom:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .btn-outline-custom:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .hero-img-wrap {
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
        }

        .hero-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        .hero-img-badge {
            position: absolute;
            left: 20px;
            bottom: 20px;
            padding: 12px 18px;
            border-radius: 12px;
            background: rgba(20, 18, 16, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .hero-img-badge .badge-num {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .hero-img-badge .badge-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.4;
        }

        .trust-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 56px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .trust-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .trust-stat .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .trust-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* ===== Data Strip ===== */
        .data-strip {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 42px 0;
        }

        .data-item {
            text-align: center;
            padding: 8px 12px;
            position: relative;
        }

        .data-item .data-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .data-item .data-label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 4px;
        }

        .data-item + .data-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 44px;
            background: var(--border);
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space) 0;
        }

        .section-alt {
            background: var(--light);
        }

        .section-dark {
            background: var(--dark);
            color: #fff;
        }

        .section-head {
            max-width: 760px;
            margin: 0 auto 48px;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            padding: 7px 18px;
            border-radius: 999px;
            background: rgba(215, 38, 61, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .section-dark .section-tag {
            background: rgba(203, 162, 88, 0.15);
            color: var(--accent);
        }

        .section-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Capabilities ===== */
        .cap-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .cap-item {
            display: flex;
            gap: 28px;
            background: #fff;
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
            border-left: 4px solid var(--primary);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .cap-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .cap-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            min-width: 72px;
        }

        .cap-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cap-body p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            margin: 0;
        }

        .cap-media {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            height: 100%;
        }

        .cap-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }

        /* ===== Metrics ===== */
        .metric-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            height: 100%;
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(215, 38, 61, 0.3);
        }

        .metric-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: rgba(215, 38, 61, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .metric-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .metric-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            margin: 0;
        }

        /* ===== Process ===== */
        .process-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 32px 28px;
            height: 100%;
            transition: all 0.3s ease;
        }

        .process-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(203, 162, 88, 0.4);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 44px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 18px;
        }

        .process-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .process-card p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        /* ===== Scenarios ===== */
        .scene-row {
            align-items: center;
            margin-bottom: 56px;
        }

        .scene-row:last-child {
            margin-bottom: 0;
        }

        .scene-media {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .scene-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        .scene-index {
            font-size: 52px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 16px;
        }

        .scene-body h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .scene-body p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--muted);
            margin: 0;
        }

        .scene-body .scene-list {
            margin-top: 20px;
            padding: 0;
            list-style: none;
        }

        .scene-body .scene-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 10px;
        }

        .scene-body .scene-list li i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 13px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--border) !important;
            border-left: 4px solid transparent !important;
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow 0.3s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left-color: var(--primary) !important;
            box-shadow: var(--shadow-lg);
        }

        .accordion-button {
            background: #fff;
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none !important;
        }

        .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--dark);
        }

        .accordion-button:focus {
            box-shadow: none !important;
            border-radius: 0;
        }

        .accordion-button::after {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\2b";
            background-image: none !important;
            width: 18px;
            height: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            transition: transform 0.3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            content: "\f068";
            transform: rotate(0deg);
        }

        .accordion-body {
            padding: 4px 24px 22px;
            font-size: 14px;
            line-height: 1.9;
            color: var(--muted);
            border-top: 1px solid #f0ebe4;
            margin: 0 0 0 0;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            border-radius: 24px;
            overflow: hidden;
            position: relative;
            background: linear-gradient(135deg, rgba(20, 18, 16, 0.92), rgba(156, 24, 40, 0.85)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
            padding: 72px 48px;
            text-align: center;
        }

        .cta-banner h2 {
            font-size: clamp(24px, 3.5vw, 34px);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-banner p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.78);
            max-width: 620px;
            margin: 0 auto 28px;
        }

        .newsletter-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto 28px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .newsletter-form input {
            flex: 1 1 260px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            transition: all 0.25s ease;
        }

        .newsletter-form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .newsletter-form input:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 4px rgba(215, 38, 61, 0.25);
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-actions .btn-primary-custom:hover {
            background: #fff;
            color: var(--primary);
        }

        .cta-actions .btn-outline-custom {
            border-color: rgba(255, 255, 255, 0.5);
        }

        /* ===== Sticky CTA ===== */
        .sticky-cta {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 720px;
            background: rgba(20, 18, 16, 0.9);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 14px;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
            z-index: 1040;
        }

        .sticky-cta-text {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sticky-cta-text i {
            color: var(--accent);
        }

        .sticky-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            transition: all 0.25s ease;
            flex-shrink: 0;
        }

        .sticky-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .footer-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            padding-bottom: 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 18px;
            font-weight: 800;
        }

        .footer-links {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.25s ease;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        body {
            padding-bottom: 76px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            :root {
                --space: 56px;
            }

            .main-nav {
                flex-wrap: wrap;
                padding: 12px 0;
                gap: 10px;
            }

            .nav-tabs {
                order: 3;
                width: 100%;
                margin-left: 0;
                overflow-x: auto;
                display: flex;
                flex-wrap: nowrap;
                padding-bottom: 4px;
                scrollbar-width: none;
            }

            .nav-tabs::-webkit-scrollbar {
                display: none;
            }

            .nav-tab {
                flex-shrink: 0;
                padding: 8px 16px;
                font-size: 13px;
            }

            .nav-cta {
                margin-left: auto;
            }

            .hero {
                padding: 90px 0 64px;
                min-height: auto;
            }

            .hero-img-wrap {
                margin-top: 40px;
            }

            .data-item + .data-item::before {
                display: none;
            }

            .cap-item {
                flex-direction: column;
                gap: 16px;
                padding: 24px;
            }

            .cap-num {
                min-width: 0;
            }

            .scene-row {
                margin-bottom: 40px;
            }

            .cta-banner {
                padding: 48px 24px;
                border-radius: 18px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --space: 44px;
            }

            .brand-text {
                font-size: 17px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .nav-tabs {
                display: flex;
            }

            .nav-tab i {
                display: none;
            }

            .nav-tab {
                padding: 8px 14px;
                font-size: 13px;
            }

            .btn-accent span {
                font-size: 13px;
            }

            .hero h1 {
                font-size: 30px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                justify-content: center;
            }

            .trust-stats {
                gap: 24px;
            }

            .trust-stat {
                width: calc(50% - 12px);
            }

            .data-strip {
                padding: 32px 0;
            }

            .data-item .data-num {
                font-size: 28px;
            }

            .cap-item {
                padding: 20px;
            }

            .cap-media {
                border-radius: 12px;
            }

            .metric-card {
                padding: 22px;
            }

            .process-card {
                padding: 24px 20px;
            }

            .step-num {
                font-size: 36px;
            }

            .scene-index {
                font-size: 40px;
            }

            .scene-body h3 {
                font-size: 20px;
            }

            .accordion-button {
                font-size: 15px;
                padding: 18px 16px;
            }

            .accordion-body {
                padding: 4px 16px 18px;
            }

            .cta-banner h2 {
                font-size: 22px;
            }

            .cta-banner p {
                font-size: 14px;
            }

            .newsletter-form {
                flex-direction: column;
            }

            .newsletter-form input {
                width: 100%;
            }

            .sticky-cta {
                bottom: 12px;
                width: calc(100% - 20px);
                padding: 12px 14px;
                border-radius: 12px;
            }

            .sticky-cta-text {
                font-size: 14px;
            }

            .sticky-cta-text .hide-sm {
                display: none;
            }

            .sticky-cta-btn {
                padding: 10px 16px;
                font-size: 13px;
                width: 45%;
                justify-content: center;
            }

            body {
                padding-bottom: 84px;
            }

            .footer-top {
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-links {
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 15px;
            }

            .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }

            .nav-cta .btn-accent {
                padding: 8px 14px;
            }

            .nav-cta .btn-accent span {
                display: none;
            }

            .nav-cta .btn-accent i {
                margin: 0;
            }

            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                font-size: 14px;
                padding: 13px 20px;
            }

            .trust-stats {
                gap: 16px;
            }

            .trust-stat .num {
                font-size: 24px;
            }

            .trust-stat .label {
                font-size: 12px;
            }

            .section-title {
                font-size: 22px;
            }

            .cap-item {
                padding: 18px;
            }

            .metric-card {
                padding: 18px;
            }

            .process-card {
                padding: 20px 16px;
            }

            .cta-banner {
                padding: 40px 18px;
            }

            .sticky-cta-text {
                font-size: 13px;
            }

            .sticky-cta-btn {
                width: 48%;
                padding: 10px 12px;
                font-size: 13px;
            }
        }