/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #00E88F;
  --primary-hover: #00C97E;
  --primary-active: #00B36F;
  --secondary: #7C5CFF;
  --bg: #0B0F17;
  --surface: #131A24;
  --surface-hover: #1A2433;
  --border: rgba(255, 255, 255, 0.08);
  --text: #E8EDF2;
  --text-muted: #8A94A6;
  --accent: #FFB347;
  --warning: #FF5C7C;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  --shadow-hover: 0 8px 32px rgba(0, 232, 143, 0.1);
  --font-display: "DIN Alternate", "Rajdhani", "Bahnschrift", sans-serif;
  --container: 1200px;
  --header-height: 72px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

/* ===== 容器 ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 区块标题 ===== */
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--primary);
  background: rgba(0, 232, 143, 0.08);
  border: 1px solid rgba(0, 232, 143, 0.2);
  border-radius: 20px;
  padding: 4px 16px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 16px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 720px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
  min-height: 52px;
  border-radius: 12px;
}

.btn-primary {
  background: var(--primary);
  color: var(--bg);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 232, 143, 0.25);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 232, 143, 0.3);
}

.btn-primary:active {
  background: var(--primary-active);
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  border-color: rgba(0, 232, 143, 0.4);
  color: var(--primary);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(0, 232, 143, 0.08);
}

.btn-outline:active {
  filter: brightness(0.9);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 1000;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11, 15, 23, 0.95);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
  flex-wrap: nowrap;
}

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

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  letter-spacing: -0.3px;
}

.logo-highlight {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  padding: 8px 0;
  position: relative;
  transition: color 0.3s ease;
  white-space: nowrap;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta-desktop {
  flex-shrink: 0;
}

/* 汉堡按钮 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  padding: 10px;
  background: transparent;
  cursor: pointer;
  z-index: 1100;
}

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

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 移动端抽屉 ===== */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 100vh;
  background: rgba(11, 15, 23, 0.98);
  backdrop-filter: blur(20px);
  z-index: 1050;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 360px;
  padding: 80px 32px 40px;
}

.mobile-nav-link {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-decoration: none;
  transition: color 0.3s ease;
}

.mobile-nav-link:hover {
  color: var(--primary);
}

.mobile-cta {
  margin-top: 16px;
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 88vh;
  height: auto;
  display: flex;
  align-items: center;
  background: var(--bg);
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(11, 15, 23, 0.97) 0%, rgba(11, 15, 23, 0.8) 50%, rgba(11, 15, 23, 0.6) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid rgba(0, 232, 143, 0.4);
  background: rgba(0, 232, 143, 0.06);
  border-radius: 24px;
  padding: 6px 18px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 5.5vw, 60px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

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

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

/* ===== 数据条 ===== */
.stats-bar {
  display: flex;
  align-items: stretch;
  gap: 24px;
  flex-wrap: wrap;
}

.stat-item {
  background: rgba(19, 26, 36, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 20px 28px;
  text-align: center;
  min-width: 150px;
  backdrop-filter: blur(8px);
  transition: border-color 0.3s ease;
}

.stat-item:hover {
  border-color: rgba(0, 232, 143, 0.3);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.stat-num span {
  font-size: 18px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ===== 痛点区 ===== */
.pain-section {
  padding: 100px 0;
  background: var(--bg);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.pain-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: all 0.3s ease;
}

.pain-card:hover {
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.pain-card .feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(124, 92, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.pain-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.pain-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.pain-card::after {
  content: "";
  position: absolute;
  bottom: 20px;
  right: 24px;
  width: 28px;
  height: 2px;
  background: var(--primary);
  opacity: 0.5;
  border-radius: 2px;
}

/* ===== 解决方案区 ===== */
.solution-section {
  padding: 100px 0;
  background: var(--surface);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-top: 48px;
}

.solution-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  min-height: 380px;
  background: var(--bg);
  box-shadow: var(--shadow);
}

.solution-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.feature-item:last-child {
  border-bottom: none;
}

.feature-item .feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 232, 143, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.feature-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.feature-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 数据成果区 ===== */
.data-band {
  padding: 100px 0;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.data-band::before {
  content: "";
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 232, 143, 0.08), transparent 60%);
  pointer-events: none;
}

.data-band .container {
  position: relative;
  z-index: 1;
}

.data-band .section-title {
  text-align: center;
  border-left: none;
  padding-left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.data-band .section-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 32px;
  background: var(--primary);
  border-radius: 2px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 56px;
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
}

.stat-bar {
  width: 40px;
  height: 3px;
  background: var(--primary);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* ===== 证言区 ===== */
.testimonials-section {
  padding: 100px 0;
  background: var(--surface);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  align-items: start;
}

.testimonial-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s ease;
}

.testimonial-card:nth-child(2) {
  transform: translateY(16px);
}

.testimonial-card:hover {
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
}

.testimonial-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.2), rgba(124, 92, 255, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.testimonial-stars {
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 1px;
}

.testimonial-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.testimonial-author {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  opacity: 0.85;
}

/* ===== FAQ 区 ===== */
.faq-section {
  padding: 100px 0;
  background: var(--bg);
}

.faq-list {
  max-width: 820px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(0, 232, 143, 0.3);
}

.faq-item.open {
  border-color: rgba(0, 232, 143, 0.4);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

.faq-q-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: rgba(0, 232, 143, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-toggle {
  margin-left: auto;
  font-size: 20px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  display: none;
  padding: 16px 0 0 36px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  display: block;
}

/* ===== 资讯区 ===== */
.news-section {
  padding: 100px 0;
  background: var(--surface);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.news-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.news-card:hover {
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.news-cover {
  height: 180px;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-card:hover .news-cover img {
  transform: scale(1.05);
}

.news-cover .empty-block {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: rgba(232, 237, 242, 0.2);
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.04), rgba(124, 92, 255, 0.04));
}

.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(11, 15, 23, 0.85);
  border: 1px solid rgba(0, 232, 143, 0.3);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  backdrop-filter: blur(6px);
  z-index: 1;
  max-width: 70%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-body {
  padding: 20px;
}

.news-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 50px;
}

.news-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 66px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

.news-empty {
  grid-column: 1 / -1;
  border: 2px dashed rgba(0, 232, 143, 0.2);
  border-radius: var(--radius);
  padding: 60px 40px;
  text-align: center;
  background: rgba(0, 232, 143, 0.02);
}

.news-empty .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.news-empty h3 {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 8px;
}

.news-empty p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== CTA 区 ===== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.12), rgba(124, 92, 255, 0.12)), var(--bg);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(0, 232, 143, 0.1), transparent 60%);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 16px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #080B10;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul li a {
  color: var(--text-muted);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-social a:hover {
  color: var(--primary);
  border-color: rgba(0, 232, 143, 0.4);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  opacity: 0.8;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  opacity: 0.8;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary);
  opacity: 1;
}

/* ===== 响应式 ===== */
@media (max-width: 1280px) {
  .container {
    padding: 0 24px;
  }

  .nav-links {
    gap: 20px;
  }
}

@media (max-width: 992px) {
  .nav-links {
    display: none;
  }

  .nav-cta-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 64px;
    text-align: center;
  }

  .hero-content {
    margin: 0 auto;
  }

  .hero-badge {
    margin: 0 auto 24px;
  }

  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .stats-bar {
    justify-content: center;
  }

  .pain-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .solution-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .solution-media {
    min-height: 300px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .testimonial-card:nth-child(2) {
    transform: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

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

  .logo-icon {
    width: 32px;
    height: 32px;
  }

  .section-title {
    font-size: 26px;
  }

  .section-desc {
    font-size: 14px;
  }

  .hero h1 {
    font-size: 32px;
  }

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

  .hero-buttons .btn-lg {
    padding: 14px 24px;
    font-size: 15px;
  }

  .stats-bar {
    gap: 12px;
  }

  .stat-item {
    padding: 14px 16px;
    min-width: 110px;
  }

  .stat-num {
    font-size: 26px;
  }

  .stat-num span {
    font-size: 14px;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
    text-align: center;
  }

  .stats-bar {
    flex-direction: column;
    width: 100%;
  }

  .stat-item {
    width: 100%;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .cta-buttons .btn {
    width: 100%;
    text-align: center;
  }

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

  .footer-links {
    justify-content: center;
  }

  .faq-question {
    font-size: 15px;
  }

  .faq-answer {
    padding-left: 0;
  }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #00E88F;
  --primary-hover: #00C97E;
  --primary-active: #00B36F;
  --secondary: #7C5CFF;
  --accent: #FF5C7C;
  --gold: #FFB347;
  --bg: #0B0F17;
  --surface: #131A24;
  --surface-hover: #1A2433;
  --border: rgba(255,255,255,0.08);
  --text: #E8EDF2;
  --text-dim: #8A94A6;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.2);
  --shadow-hover: 0 8px 32px rgba(0,232,143,0.1);
  --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-num: "DIN Alternate", "Rajdhani", "Bahnschrift", sans-serif;
  --header-h: 72px;
  --section-space: 80px;
  --container: 1200px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input { font-family: inherit; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 3px; }

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(11,15,23,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(0,232,143,0.12);
  flex-shrink: 0;
}
.logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.3px;
  white-space: nowrap;
}
.logo-highlight { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dim);
  padding: 8px 2px;
  transition: color 0.25s ease;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 26px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #0B0F17;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.25s ease;
  box-shadow: 0 4px 18px rgba(0,232,143,0.22);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,232,143,0.25);
}
.btn-primary:active {
  background: var(--primary-active);
  transform: translateY(0);
  filter: brightness(0.95);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0,232,143,0.4);
  color: var(--primary);
  background: transparent;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(0,232,143,0.08);
}
.btn-secondary:active { filter: brightness(0.85); }
.nav-cta-desktop { margin-left: 8px; }
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 8px;
}
.hamburger span {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--text);
  transition: all 0.3s ease;
}
.hamburger:hover span { background: var(--primary); }

/* 移动端抽屉菜单 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 999;
  background: rgba(11,15,23,0.98);
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h) + 20px) 28px 32px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s ease;
}
.mobile-menu a:hover { color: var(--primary); }
.mobile-menu a.active { color: var(--primary); }
.mobile-menu .btn-primary {
  margin-top: auto;
  width: 100%;
  height: 52px;
}
.mobile-menu-close {
  position: absolute;
  top: 18px;
  right: 20px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--text);
  border-radius: 8px;
}
.mobile-menu-close:hover { color: var(--primary); }

/* ===== 面包屑 ===== */
.breadcrumb {
  background: transparent;
  padding: calc(var(--header-h) + 24px) 0 0;
}
.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-dim);
}
.breadcrumb a { transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: 0.4; }
.breadcrumb .current { color: var(--primary); font-weight: 500; }

/* ===== 分类 Hero ===== */
.category-hero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  padding: 80px 0 64px;
  background:
    linear-gradient(100deg, rgba(11,15,23,0.92) 30%, rgba(11,15,23,0.65) 55%, rgba(11,15,23,0.35) 80%),
    radial-gradient(800px 400px at 15% 40%, rgba(0,232,143,0.14), transparent 60%),
    radial-gradient(600px 300px at 80% 30%, rgba(124,92,255,0.12), transparent 60%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.category-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,232,143,0.08), transparent 70%);
  pointer-events: none;
}
.category-hero .container {
  position: relative;
  z-index: 2;
}
.category-hero-content {
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0,232,143,0.5);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  background: rgba(0,232,143,0.06);
  margin-bottom: 24px;
}
.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}
.category-hero .hero-title {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}
.category-hero .hero-title .highlight {
  color: var(--primary);
}
.category-hero .hero-desc {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-dim);
  margin-bottom: 32px;
  max-width: 540px;
}
.category-hero .hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.category-hero .hero-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 22px 28px;
  background: rgba(19,26,36,0.65);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-width: 480px;
  backdrop-filter: blur(6px);
}
.hero-stats .stat-item {
  display: flex;
  flex-direction: column;
}
.hero-stats .stat-num {
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.hero-stats .stat-label {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ===== 主内容区 ===== */
.category-body {
  padding: var(--section-space) 0;
}
.category-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 56px;
  align-items: start;
}
.category-content {
  min-width: 0;
}

/* ===== 区块标题 ===== */
.section-block {
  margin-bottom: 48px;
}
.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.section-label::before {
  content: "/";
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}
.section-title {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.3px;
  border-left: 4px solid var(--primary);
  padding-left: 16px;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-dim);
  max-width: 640px;
  margin-bottom: 28px;
}

/* ===== 指南卡片 ===== */
.guide-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}
.guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.guide-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  opacity: 0.4;
  transition: opacity 0.3s ease;
}
.guide-card:hover {
  background: var(--surface-hover);
  border-color: rgba(0,232,143,0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.guide-card:hover::before { opacity: 1; }
.guide-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0,232,143,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}
.guide-card .card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.guide-card .card-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ===== 图文高亮块 ===== */
.highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.highlight-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}
.highlight-block:hover {
  border-color: rgba(0,232,143,0.3);
  box-shadow: var(--shadow-hover);
}
.highlight-media {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--surface-hover);
}
.highlight-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.highlight-block:hover .highlight-media img {
  transform: scale(1.04);
}
.highlight-media .cover-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(11,15,23,0.82);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  backdrop-filter: blur(4px);
}
.highlight-body {
  padding: 24px;
}
.highlight-body h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.highlight-body p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 16px;
}
.highlight-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-dim);
}
.highlight-meta .meta-sep { width: 3px; height: 3px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.highlight-meta .hot {
  color: var(--gold);
  font-weight: 600;
}

/* ===== 流程步骤 ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.process-step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 20px;
  text-align: center;
  transition: all 0.3s ease;
}
.process-step:hover {
  border-color: rgba(0,232,143,0.3);
  transform: translateY(-4px);
}
.process-step .step-num {
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 700;
  color: rgba(0,232,143,0.2);
  line-height: 1;
  margin-bottom: 12px;
}
.process-step .step-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.process-step .step-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}
.process-step::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -16px;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
  z-index: 2;
}
.process-step:last-child::after { display: none; }

/* ===== 侧边栏 ===== */
.category-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.sidebar-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-left: 14px;
}
.sidebar-card h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: var(--primary);
}
.hot-list .hot-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 11px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: all 0.2s ease;
}
.hot-list .hot-item:last-child { border-bottom: none; }
.hot-list .hot-num {
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dim);
  min-width: 24px;
  line-height: 1.4;
  transition: color 0.2s ease;
}
.hot-list .hot-item:hover .hot-num { color: var(--primary); }
.hot-list .hot-item a {
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
  transition: color 0.2s ease;
}
.hot-list .hot-item a:hover { color: var(--primary); }
.faq-links .faq-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 0;
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s ease;
}
.faq-links .faq-link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--secondary);
  flex-shrink: 0;
}
.faq-links .faq-link:hover { color: var(--primary); }
.sidebar-cta {
  background:
    linear-gradient(135deg, rgba(0,232,143,0.15), rgba(124,92,255,0.12)),
    var(--surface);
  border: 1px solid rgba(0,232,143,0.25);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}
.sidebar-cta .cta-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: rgba(0,232,143,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}
.sidebar-cta h5 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.sidebar-cta p {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 20px;
  line-height: 1.6;
}
.sidebar-cta .btn-primary {
  width: 100%;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--section-space) 0;
}
.faq-section .section-title {
  text-align: center;
  border-left: none;
  padding-left: 0;
  margin-bottom: 8px;
}
.faq-section .section-label {
  justify-content: center;
}
.faq-section .section-label::before { display: none; }
.faq-section .faq-intro {
  text-align: center;
  color: var(--text-dim);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 40px;
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item:hover { border-color: rgba(0,232,143,0.2); }
.faq-item.active { border-color: rgba(0,232,143,0.35); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  min-height: 60px;
  text-align: left;
  width: 100%;
}
.faq-question-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-q-icon {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: rgba(0,232,143,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}
.faq-q-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.faq-toggle {
  font-size: 20px;
  color: var(--text-dim);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); color: var(--primary); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px 62px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.75;
}
.faq-answer-inner p { margin-bottom: 6px; }
.faq-answer-inner p:last-child { margin-bottom: 0; }

/* ===== 最终 CTA ===== */
.final-cta {
  position: relative;
  padding: 90px 0;
  background:
    linear-gradient(120deg, rgba(0,232,143,0.16), rgba(124,92,255,0.14)),
    radial-gradient(600px 300px at 20% 20%, rgba(0,232,143,0.15), transparent 60%),
    radial-gradient(500px 280px at 80% 80%, rgba(124,92,255,0.13), transparent 60%),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.final-cta .cta-title {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}
.final-cta .cta-desc {
  font-size: 16px;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto 36px;
}
.final-cta .cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #080B10;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 300px;
}
.footer-social {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 16px;
  transition: all 0.25s ease;
}
.footer-social a:hover {
  background: rgba(0,232,143,0.1);
  border-color: rgba(0,232,143,0.3);
  transform: translateY(-2px);
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s ease;
}
.footer-col ul a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 22px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 14px;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--primary); }

/* ===== 响应式 ===== */

/* ≤1280px */
@media (max-width: 1280px) {
  .category-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 36px;
  }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(2)::after { display: none; }
}

/* ≤992px */
@media (max-width: 992px) {
  :root { --header-h: 64px; --section-space: 64px; }
  .nav-links { display: none; }
  .nav-cta-desktop { display: none; }
  .hamburger { display: flex; }
  .category-layout {
    grid-template-columns: 1fr;
  }
  .category-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 20px;
  }
  .sidebar-card {
    flex: 1 1 200px;
  }
  .sidebar-cta {
    flex: 1 1 240px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .highlight-grid { grid-template-columns: 1fr; }
}

/* ≤768px */
@media (max-width: 768px) {
  .category-hero {
    min-height: 440px;
    padding: 64px 0 48px;
  }
  .category-hero .hero-title {
    font-size: 32px;
  }
  .category-hero .hero-desc {
    font-size: 15px;
  }
  .category-hero .hero-actions {
    flex-direction: column;
  }
  .category-hero .hero-actions .btn-primary,
  .category-hero .hero-actions .btn-secondary {
    width: 100%;
  }
  .category-hero .hero-stats {
    padding: 16px 20px;
    gap: 16px;
    max-width: 100%;
  }
  .hero-stats .stat-num {
    font-size: 24px;
  }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-step::after { display: none; }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-brand p { max-width: 100%; }
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ≤576px */
@media (max-width: 576px) {
  .container { padding: 0 18px; }
  :root { --section-space: 48px; }
  .breadcrumb { display: none; }
  .category-hero {
    min-height: 400px;
    padding: 56px 0 40px;
  }
  .category-hero .hero-title {
    font-size: 28px;
  }
  .category-hero .hero-stats {
    flex-direction: row;
    justify-content: space-between;
  }
  .hero-stats .stat-num {
    font-size: 21px;
  }
  .hero-stats .stat-label {
    font-size: 12px;
  }
  .guide-cards { grid-template-columns: 1fr; }
  .highlight-media { height: 180px; }
  .process-steps { grid-template-columns: 1fr; }
  .section-title {
    font-size: 24px;
    padding-left: 12px;
  }
  .faq-question {
    padding: 16px 18px;
  }
  .faq-answer-inner {
    padding: 0 18px 18px 50px;
  }
  .faq-q-text {
    font-size: 15px;
  }
  .final-cta {
    padding: 64px 0;
  }
  .final-cta .cta-actions {
    flex-direction: column;
  }
  .final-cta .cta-actions .btn-primary,
  .final-cta .cta-actions .btn-secondary {
    width: 100%;
  }
  .sidebar-card {
    flex: 1 1 100%;
  }
}

/* roulang page: article */
:root {
  --primary: #00E88F;
  --primary-hover: #00C97E;
  --primary-active: #00B36F;
  --secondary: #7C5CFF;
  --bg: #0B0F17;
  --surface: #131A24;
  --surface-hover: #1A2433;
  --border: rgba(255, 255, 255, 0.08);
  --text: #E8EDF2;
  --text-muted: #8A94A6;
  --danger: #FF5C7C;
  --warning: #FFB347;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  --shadow-hover: 0 8px 32px rgba(0, 232, 143, 0.1);
  --container: 1200px;
  --container-narrow: 780px;
  --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

input,
textarea {
  font-family: inherit;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 12px 28px;
  min-height: 48px;
  transition: all var(--transition);
  border: 1px solid transparent;
  line-height: 1.2;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #0B0F17 !important;
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 232, 143, 0.2);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 232, 143, 0.25);
  color: #0B0F17 !important;
}

.btn-primary:active {
  background: var(--primary-active);
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  color: var(--primary) !important;
  border-color: rgba(0, 232, 143, 0.4);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(0, 232, 143, 0.08);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
  background: rgba(0, 232, 143, 0.04);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text) !important;
  border-color: rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--primary) !important;
}

.btn-sm {
  padding: 8px 18px;
  min-height: 40px;
  font-size: 14px;
}

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

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

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  flex-shrink: 0;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.logo-highlight {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a.active {
  color: var(--primary);
}

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

.nav-cta-desktop {
  min-height: 48px;
  padding: 10px 22px;
  font-size: 15px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== 面包屑 ========== */
.breadcrumb-wrap {
  margin-top: 72px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 23, 0.6);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
}

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

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

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.3);
}

.breadcrumb .current {
  color: var(--primary);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========== 文章 Hero ========== */
.article-hero {
  padding: 64px 0 40px;
  position: relative;
  background: linear-gradient(180deg, rgba(11, 15, 23, 0.72) 0%, var(--bg) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
}

.article-hero .category-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(0, 232, 143, 0.12);
  border: 1px solid rgba(0, 232, 143, 0.5);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.article-hero h1 {
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  color: var(--text);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: var(--text-muted);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

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

.meta-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ========== 正文 ========== */
.article-content {
  padding: 56px 0 64px;
}

.article-body {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
}

.article-body > * + * {
  margin-top: 24px;
}

.article-body h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  margin-top: 40px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}

.article-body h3 {
  font-size: clamp(18px, 2.5vw, 22px);
  font-weight: 700;
  line-height: 1.4;
  margin-top: 36px;
}

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

.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(0, 232, 143, 0.3);
}

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

.article-body img {
  width: 100%;
  border-radius: 12px;
  margin: 28px 0;
}

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

.article-body li {
  margin-bottom: 10px;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(0, 232, 143, 0.08);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text);
  font-style: normal;
}

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

.article-body code {
  background: rgba(124, 92, 255, 0.12);
  color: #B8A2FF;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* ========== 空状态 ========== */
.article-empty {
  text-align: center;
  padding: 80px 24px;
  border: 2px dashed rgba(0, 232, 143, 0.25);
  border-radius: var(--radius-lg);
  background: rgba(19, 26, 36, 0.5);
}

.article-empty .empty-code {
  font-size: 72px;
  font-weight: 800;
  color: var(--primary);
  font-family: "DIN Alternate", "Bahnschrift", sans-serif;
  line-height: 1;
  margin-bottom: 16px;
}

.article-empty h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-empty p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 420px;
  margin: 0 auto 28px;
}

/* ========== 文章底部导航 ========== */
.article-bottom-nav {
  padding: 0 0 64px;
}

.article-nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  justify-content: space-between;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 24px;
}

.article-nav-group {
  display: flex;
  gap: 12px;
}

.article-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.article-nav-link:hover {
  color: var(--primary);
  border-color: rgba(0, 232, 143, 0.4);
  background: rgba(0, 232, 143, 0.04);
}

/* ========== 相关推荐 ========== */
.related-section {
  padding: 64px 0;
  background: rgba(19, 26, 36, 0.3);
  border-top: 1px solid var(--border);
}

.related-section .section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

.related-section h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  position: relative;
  padding-left: 14px;
}

.related-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--primary);
  border-radius: 4px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
}

.related-thumb {
  aspect-ratio: 16 / 9;
  background: var(--surface-hover);
  overflow: hidden;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.04);
}

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

.related-card h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 44px;
}

.related-card .related-date {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== FAQ ========== */
.faq-section {
  padding: 80px 0;
  background: var(--bg);
}

.faq-section .faq-head {
  text-align: center;
  margin-bottom: 48px;
}

.faq-section .faq-head .section-tag {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: inline-block;
}

.faq-section .faq-head h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.3;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.faq-item.active {
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 4px 0;
  width: 100%;
  text-align: left;
}

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(0, 232, 143, 0.12);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-left: 42px;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding-top: 14px;
  padding-bottom: 4px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 80px 0;
  position: relative;
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.2) 0%, rgba(124, 92, 255, 0.28) 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  border-top: 1px solid var(--border);
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 23, 0.72);
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
}

.cta-content h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text);
}

.cta-content p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 28px;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.cta-img-wrap {
  position: relative;
}

.cta-img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========== 页脚 ========== */
.site-footer {
  background: #080B10;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}

.footer-brand .logo {
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.footer-social a:hover {
  background: rgba(0, 232, 143, 0.1);
  border-color: rgba(0, 232, 143, 0.4);
  color: var(--primary);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
}

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

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-inner p {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
}

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

/* ========== 响应式 ========== */
@media (max-width: 1280px) {
  .container {
    padding: 0 24px;
  }
  .nav-links {
    gap: 24px;
  }
}

@media (max-width: 992px) {
  .nav-links {
    gap: 16px;
  }
  .nav-links a {
    font-size: 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .cta-inner {
    grid-template-columns: 1fr;
  }
  .cta-img-wrap {
    display: none;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 60px;
  }
  .nav-inner {
    height: 60px;
  }
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(11, 15, 23, 0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 20px 24px;
    transform: translateY(-150%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-links a {
    font-size: 20px;
    font-weight: 600;
    padding: 12px 0;
    width: 100%;
  }
  .nav-links a.active::after {
    display: none;
  }
  .nav-links a.active {
    color: var(--primary);
  }
  .nav-cta-desktop {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .breadcrumb-wrap {
    margin-top: 60px;
  }
  .article-hero {
    padding: 40px 0 28px;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  .article-content {
    padding: 40px 0 48px;
  }
  .article-nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  .article-nav-group {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
  .cta-buttons {
    flex-direction: column;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
  .breadcrumb .current {
    max-width: 150px;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }
  .container-narrow {
    padding: 0 16px;
  }
  .logo-text {
    font-size: 16px;
  }
  .logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
  }
  .article-hero h1 {
    font-size: 28px;
  }
  .article-body {
    font-size: 16px;
  }
  .article-nav-links .btn {
    padding: 10px 20px;
    font-size: 14px;
  }
  .faq-question {
    font-size: 14px;
  }
  .faq-answer {
    padding-left: 0;
  }
  .related-card h3 {
    font-size: 15px;
  }
  .cta-section {
    padding: 60px 0;
  }
  .cta-content p {
    font-size: 14px;
  }
}

@media (min-width: 769px) {
  .hamburger {
    display: none !important;
  }
  .nav-links {
    display: flex !important;
  }
}

/* roulang page: category2 */
:root{
  --primary:#00E88F;
  --primary-hover:#00C97E;
  --primary-active:#00B36F;
  --secondary:#7C5CFF;
  --bg:#0B0F17;
  --surface:#131A24;
  --surface-hover:#1A2433;
  --border:rgba(255,255,255,0.08);
  --text:#E8EDF2;
  --text-muted:#8A94A6;
  --accent:#FF5C7C;
  --amber:#FFB347;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 4px 24px rgba(0,0,0,0.2);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  --font-num:"DIN Alternate","Rajdhani","Bahnschrift",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.text-primary{color:var(--primary)}
section{scroll-margin-top:90px}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:12px 28px;
  border-radius:var(--radius-sm);
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  transition:all .2s ease;
  letter-spacing:.3px;
}
.btn-primary{
  background:var(--primary);
  color:#0B0F17;
  box-shadow:0 0 20px rgba(0,232,143,0.25);
}
.btn-primary:hover{
  background:var(--primary-hover);
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 6px 24px rgba(0,232,143,0.3);
}
.btn-primary:active{
  filter:brightness(0.95);
  transform:translateY(0);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border:1.5px solid rgba(0,232,143,0.4);
}
.btn-outline:hover{
  border-color:var(--primary);
  background:rgba(0,232,143,0.08);
}
.btn-outline:active{
  background:rgba(0,232,143,0.15);
}
.btn-dark{
  background:#0B0F17;
  color:var(--primary);
  box-shadow:0 4px 16px rgba(0,0,0,0.3);
}
.btn-dark:hover{
  background:#1A2433;
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(0,0,0,0.4);
}
.btn-lg{
  padding:16px 36px;
  font-size:17px;
  min-height:48px;
}

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:72px;
  background:rgba(11,15,23,0.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
}
.logo-icon{
  display:flex;
  align-items:center;
  justify-content:center;
}
.logo-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:-0.3px;
  white-space:nowrap;
}
.logo-highlight{color:var(--primary)}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-links a{
  font-size:15px;
  font-weight:500;
  color:var(--text-muted);
  transition:color .2s ease;
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:4px 2px;
}
.nav-links a:hover{color:var(--primary)}
.nav-links a.active{
  color:var(--primary);
  font-weight:600;
}
.nav-links a.active::after{
  content:'';
  position:absolute;
  bottom:-2px;
  left:0;right:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-cta-desktop{
  flex-shrink:0;
  min-height:44px;
  padding:10px 22px;
}
.hamburger{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  border-radius:8px;
  padding:10px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border);
}
.hamburger span{
  display:block;
  height:2px;
  width:100%;
  background:var(--text);
  border-radius:2px;
  transition:all .25s ease;
}
.hamburger.open span:nth-child(1){
  transform:rotate(45deg) translate(5px,5px);
}
.hamburger.open span:nth-child(2){
  opacity:0;
}
.hamburger.open span:nth-child(3){
  transform:rotate(-45deg) translate(5px,-5px);
}

/* 移动端抽屉 */
.mobile-menu{
  position:fixed;
  top:72px;
  left:0;right:0;bottom:0;
  background:rgba(11,15,23,0.98);
  z-index:999;
  padding:32px 24px 48px;
  display:flex;
  flex-direction:column;
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.mobile-menu.open{
  transform:translateX(0);
}
.mobile-menu a{
  font-size:20px;
  font-weight:600;
  color:var(--text);
  padding:14px 12px;
  border-bottom:1px solid rgba(255,255,255,0.06);
  display:flex;
  align-items:center;
  gap:12px;
}
.mobile-menu a:hover,
.mobile-menu a.active{
  color:var(--primary);
}
.mobile-menu .mobile-cta{
  margin-top:auto;
  background:var(--primary);
  color:#0B0F17;
  border-radius:var(--radius-sm);
  font-size:18px;
  font-weight:700;
  padding:16px;
  justify-content:center;
  border:none;
}

/* 面包屑 */
.breadcrumb{
  padding:88px 0 0;
  border-bottom:1px solid rgba(255,255,255,0.04);
}
.breadcrumb-inner{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-muted);
  padding:14px 0;
}
.breadcrumb-inner a{
  color:var(--text-muted);
  transition:color .2s;
}
.breadcrumb-inner a:hover{color:var(--primary)}
.breadcrumb-inner .sep{opacity:.5}
.breadcrumb-inner .current{color:var(--primary)}

/* 页面首屏 */
.page-hero{
  position:relative;
  padding:100px 0 70px;
  background:
    radial-gradient(ellipse 800px 500px at 15% 20%, rgba(0,232,143,0.15), transparent 60%),
    radial-gradient(ellipse 600px 400px at 85% 30%, rgba(124,92,255,0.12), transparent 60%),
    linear-gradient(rgba(11,15,23,0.7),rgba(11,15,23,0.92)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,0.04);
}
.page-hero-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:48px;
}
.page-hero-content{
  flex:1;
  max-width:680px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border:1px solid rgba(0,232,143,0.4);
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:rgba(0,232,143,0.06);
  margin-bottom:24px;
}
.badge-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}
.page-hero h1{
  font-size:clamp(38px,5.5vw,58px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-0.5px;
  margin-bottom:18px;
}
.page-hero h1 .text-primary{color:var(--primary)}
.page-hero p{
  font-size:17px;
  line-height:1.8;
  color:var(--text-muted);
  max-width:560px;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:48px;
}
.hero-stats{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
}
.stat-item{
  background:rgba(19,26,36,0.6);
  border:1px solid var(--border);
  border-radius:12px;
  padding:18px 24px;
  min-width:120px;
  text-align:center;
}
.stat-num{
  display:block;
  font-family:var(--font-num);
  font-size:32px;
  font-weight:700;
  color:var(--primary);
  line-height:1.2;
}
.stat-label{
  display:block;
  font-size:13px;
  color:var(--text-muted);
  margin-top:4px;
}
.hero-visual{
  flex:0 0 340px;
  display:none;
}
@media(min-width:992px){
  .hero-visual{display:block}
}
.hero-visual-card{
  background:rgba(19,26,36,0.5);
  border:1px solid var(--border);
  border-radius:20px;
  padding:24px;
  backdrop-filter:blur(8px);
  box-shadow:var(--shadow);
}
.hero-visual-card .mini-title{
  font-size:14px;
  color:var(--text-muted);
  margin-bottom:16px;
}
.hero-visual-card .visual-img{
  border-radius:12px;
  overflow:hidden;
  margin-bottom:14px;
}
.hero-visual-card .visual-img img{
  width:100%;
  height:180px;
  object-fit:cover;
}

/* 内容区两栏 */
.content-section{
  padding:80px 0;
}
.content-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:32px;
  align-items:start;
}
.content-main{
  display:flex;
  flex-direction:column;
  gap:32px;
}
.content-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:36px;
  box-shadow:var(--shadow);
  transition:border-color .3s ease,box-shadow .3s ease;
}
.content-card:hover{
  border-color:rgba(0,232,143,0.3);
  box-shadow:0 8px 32px rgba(0,232,143,0.06);
}
.content-card h2{
  font-size:clamp(22px,3vw,28px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
  position:relative;
  padding-left:16px;
}
.content-card h2::before{
  content:'';
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.content-card .lead{
  color:var(--text-muted);
  font-size:15px;
  margin-bottom:24px;
}
.section-tag{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  letter-spacing:1px;
  margin-bottom:8px;
  font-family:var(--font-num);
}

/* 兼容性网格 */
.compat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:24px;
}
.compat-item{
  background:var(--surface-hover);
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px;
  transition:transform .2s ease,border-color .2s ease;
}
.compat-item:hover{
  transform:translateY(-3px);
  border-color:rgba(0,232,143,0.3);
}
.compat-icon{
  width:44px;height:44px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(0,232,143,0.13);
  color:var(--primary);
  margin-bottom:14px;
  font-size:20px;
}
.compat-item h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:8px;
}
.compat-item p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.6;
}

/* 步骤时间线 */
.step-list{
  margin-top:24px;
  position:relative;
  padding-left:8px;
}
.step-item{
  position:relative;
  padding:0 0 24px 48px;
}
.step-item:last-child{
  padding-bottom:0;
}
.step-item::before{
  content:'';
  position:absolute;
  left:14px;top:4px;bottom:0;
  width:2px;
  background:rgba(0,232,143,0.15);
}
.step-item:last-child::before{
  display:none;
}
.step-num{
  position:absolute;
  left:0;top:0;
  width:30px;height:30px;
  border-radius:8px;
  background:rgba(0,232,143,0.15);
  border:1px solid rgba(0,232,143,0.3);
  color:var(--primary);
  font-family:var(--font-num);
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:1;
}
.step-item h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:6px;
}
.step-item p{
  font-size:15px;
  color:var(--text-muted);
  line-height:1.7;
}
.step-extra{
  margin-top:6px;
  font-size:14px;
  color:var(--text-muted);
  background:rgba(255,255,255,0.03);
  border-radius:8px;
  padding:8px 14px;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.step-extra strong{
  color:var(--amber);
}

/* 异常排查卡片 */
.trouble-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-top:24px;
}
.trouble-item{
  background:var(--surface-hover);
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px 24px;
  display:flex;
  gap:16px;
  align-items:flex-start;
  transition:border-color .2s ease;
}
.trouble-item:hover{
  border-color:rgba(0,232,143,0.25);
}
.trouble-icon{
  flex-shrink:0;
  width:36px;height:36px;
  border-radius:8px;
  background:rgba(255,92,124,0.13);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
}
.trouble-item:nth-child(2) .trouble-icon{
  background:rgba(255,179,71,0.13);
  color:var(--amber);
}
.trouble-item:nth-child(3) .trouble-icon{
  background:rgba(124,92,255,0.13);
  color:var(--secondary);
}
.trouble-body h3{
  font-size:15px;
  font-weight:700;
  margin-bottom:4px;
}
.trouble-body p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.65;
}

/* 侧边栏 */
.content-sidebar{
  display:flex;
  flex-direction:column;
  gap:24px;
  position:sticky;
  top:96px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
}
.side-card h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:20px;
  padding-bottom:12px;
  border-bottom:1px solid var(--border);
  position:relative;
}
.side-card h3::after{
  content:'';
  position:absolute;
  left:0;bottom:-1px;
  width:36px;height:2px;
  background:var(--primary);
  border-radius:2px;
}
.hot-list{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.hot-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:10px 0;
  border-bottom:1px solid rgba(255,255,255,0.03);
  transition:background .2s ease;
  border-radius:8px;
  padding-left:8px;
  padding-right:8px;
}
.hot-list li:last-child{
  border-bottom:none;
}
.hot-list li:hover{
  background:rgba(0,232,143,0.04);
}
.hot-num{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  background:rgba(0,232,143,0.1);
  border-radius:6px;
  padding:2px 8px;
  flex-shrink:0;
  line-height:1.6;
}
.hot-list a{
  font-size:14px;
  line-height:1.55;
  color:var(--text-muted);
  transition:color .2s ease;
  display:flex;
  align-items:flex-start;
  gap:10px;
}
.hot-list a:hover{
  color:var(--primary);
}
.hot-list a::before{
  content:'';
  position:absolute;
}
.side-cta{
  background:linear-gradient(135deg,rgba(0,232,143,0.16),rgba(124,92,255,0.16));
  border:1px solid rgba(0,232,143,0.2);
  border-radius:var(--radius);
  padding:32px 28px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.side-cta::before{
  content:'';
  position:absolute;
  top:-40px;right:-40px;
  width:120px;height:120px;
  background:rgba(0,232,143,0.12);
  border-radius:50%;
  filter:blur(30px);
}
.side-cta h3{
  font-size:20px;
  font-weight:800;
  margin-bottom:8px;
  position:relative;
  z-index:1;
}
.side-cta p{
  font-size:14px;
  color:var(--text-muted);
  margin-bottom:20px;
  position:relative;
  z-index:1;
}
.side-cta .btn{
  width:100%;
  position:relative;
  z-index:1;
}

/* FAQ区 */
.faq-section{
  padding:80px 0;
  background:rgba(19,26,36,0.3);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.faq-header{
  margin-bottom:40px;
}
.faq-header h2{
  font-size:clamp(26px,3.5vw,36px);
  font-weight:700;
  line-height:1.3;
  position:relative;
  padding-left:16px;
}
.faq-header h2::before{
  content:'';
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.faq-list{
  max-width:860px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item:hover{
  border-color:rgba(0,232,143,0.2);
}
.faq-item.active{
  border-color:rgba(0,232,143,0.35);
  box-shadow:0 4px 20px rgba(0,232,143,0.06);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  text-align:left;
  min-height:60px;
  transition:background .2s ease;
}
.faq-question:hover{
  background:rgba(255,255,255,0.02);
}
.faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:8px;
  background:rgba(0,232,143,0.12);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  transition:transform .3s ease;
}
.faq-item.active .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#0B0F17;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease,padding .35s ease;
  padding:0 24px;
}
.faq-item.active .faq-answer{
  max-height:400px;
  padding:0 24px 20px 24px;
}
.faq-answer-inner{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.75;
  margin-left:44px;
  border-left:2px solid rgba(0,232,143,0.15);
  padding-left:18px;
}
.faq-answer-inner strong{
  color:var(--text);
}

/* 最终CTA */
.cta-band{
  position:relative;
  padding:96px 0;
  background:
    radial-gradient(ellipse 900px 500px at 30% 50%, rgba(0,232,143,0.18), transparent 60%),
    radial-gradient(ellipse 700px 400px at 75% 50%, rgba(124,92,255,0.2), transparent 60%),
    linear-gradient(135deg,#0B6B44 0%,#4A2DB8 100%);
  overflow:hidden;
  text-align:center;
}
.cta-band::before{
  content:'';
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:0.12;
  pointer-events:none;
}
.cta-band .container{
  position:relative;
  z-index:1;
  max-width:760px;
}
.cta-band h2{
  font-size:clamp(30px,4vw,42px);
  font-weight:800;
  line-height:1.25;
  color:#fff;
  margin-bottom:16px;
  text-shadow:0 2px 20px rgba(0,0,0,0.2);
}
.cta-band p{
  font-size:17px;
  color:rgba(255,255,255,0.85);
  margin-bottom:36px;
  line-height:1.7;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}
.cta-band .btn-primary{
  background:#fff;
  color:#0B0F17;
  box-shadow:0 4px 24px rgba(0,0,0,0.2);
}
.cta-band .btn-primary:hover{
  background:rgba(255,255,255,0.9);
  transform:translateY(-2px);
}
.cta-band .btn-outline-custom{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,0.6);
}
.cta-band .btn-outline-custom:hover{
  border-color:#fff;
  background:rgba(255,255,255,0.1);
}

/* 页脚 */
.site-footer{
  background:#080B10;
  border-top:1px solid rgba(255,255,255,0.06);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:50px;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-muted);
  margin:16px 0 20px;
  max-width:300px;
  line-height:1.7;
}
.footer-social{
  display:flex;
  gap:10px;
}
.footer-social a{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--surface);
  border:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  transition:all .2s ease;
}
.footer-social a:hover{
  background:rgba(0,232,143,0.1);
  border-color:var(--primary);
  transform:translateY(-2px);
}
.footer-col h4{
  font-size:16px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--text);
}
.footer-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-col ul a{
  font-size:14px;
  color:var(--text-muted);
  transition:color .2s ease;
  display:inline-block;
  padding:4px 0;
  min-height:30px;
}
.footer-col ul a:hover{
  color:var(--primary);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);
  padding:24px 0;
}
.footer-bottom-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom-inner p{
  font-size:13px;
  color:var(--text-muted);
}
.footer-links{
  display:flex;
  gap:22px;
}
.footer-links a{
  font-size:13px;
  color:var(--text-muted);
  transition:color .2s ease;
}
.footer-links a:hover{
  color:var(--primary);
}

/* 响应式 */
@media (max-width:1280px){
  .container{max-width:1140px}
}
@media (max-width:992px){
  .nav-links{
    gap:18px;
  }
  .nav-links a{
    font-size:14px;
  }
  .content-grid{
    grid-template-columns:1fr;
  }
  .content-sidebar{
    position:static;
    flex-direction:row;
    flex-wrap:wrap;
    gap:20px;
  }
  .side-card,.side-cta{
    flex:1 1 280px;
  }
  .hero-visual{
    display:none;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media (max-width:768px){
  .nav-links{
    display:none;
  }
  .nav-cta-desktop{
    display:none;
  }
  .hamburger{
    display:flex;
  }
  .page-hero{
    padding:130px 0 56px;
  }
  .page-hero h1{
    font-size:36px;
  }
  .page-hero p{
    font-size:15px;
  }
  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .hero-actions .btn{
    width:100%;
  }
  .hero-stats{
    gap:10px;
  }
  .stat-item{
    flex:1;
    padding:14px 10px;
  }
  .stat-num{
    font-size:24px;
  }
  .content-section{
    padding:56px 0;
  }
  .content-card{
    padding:24px;
  }
  .compat-grid{
    grid-template-columns:1fr;
  }
  .faq-section{
    padding:56px 0;
  }
  .cta-band{
    padding:64px 0;
  }
  .cta-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .cta-actions .btn{
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .breadcrumb-inner{
    overflow-x:auto;
  }
}
@media (max-width:576px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
  .logo-text{
    font-size:16px;
  }
  .page-hero{
    padding:120px 0 48px;
  }
  .page-hero h1{
    font-size:32px;
  }
  .hero-actions{
    margin-bottom:36px;
  }
  .hero-stats{
    flex-direction:column;
  }
  .content-card h2{
    font-size:22px;
  }
  .step-item{
    padding-left:44px;
  }
  .step-num{
    width:26px;height:26px;
    font-size:14px;
  }
  .step-item::before{
    left:12px;
  }
  .trouble-item{
    flex-direction:column;
    gap:10px;
  }
  .faq-question{
    padding:16px 18px;
  }
  .faq-answer-inner{
    margin-left:0;
    padding-left:0;
    border-left:none;
  }
  .footer-bottom-inner{
    flex-direction:column;
    text-align:center;
  }
}

/* roulang page: category3 */
:root {
  --primary: #00E88F;
  --primary-hover: #00C97E;
  --primary-active: #00B36F;
  --secondary: #7C5CFF;
  --accent: #FF5C7C;
  --amber: #FFB347;
  --bg: #0B0F17;
  --surface: #131A24;
  --surface-hover: #1A2433;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #E8EDF2;
  --text-muted: #8A94A6;
  --text-dim: #5C6678;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  --shadow-hover: 0 8px 32px rgba(0, 232, 143, 0.1);
  --shadow-primary: 0 6px 24px rgba(0, 232, 143, 0.25);
  --container: 1200px;
  --transition: all 0.3s ease;
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --data-font: "DIN Alternate", "Rajdhani", "Bahnschrift", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-hover); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
h1, h2, h3, h4 { line-height: 1.3; color: var(--text); }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 90px 0; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--primary);
  background: rgba(0, 232, 143, 0.1);
  border: 1px solid rgba(0, 232, 143, 0.25);
  border-radius: 100px;
  padding: 6px 16px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
  padding-left: 18px;
  border-left: 4px solid var(--primary);
}
.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.8;
}

/* ===== Header & Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  display: block;
  filter: drop-shadow(0 0 10px rgba(0, 232, 143, 0.4));
}
.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
  white-space: nowrap;
}
.logo-highlight { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0 auto;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 6px 2px;
  line-height: 1.4;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a.active {
  color: var(--primary);
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-cta-desktop {
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 12px 28px;
  line-height: 1.4;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: var(--primary);
  color: #0B0F17;
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #0B0F17;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 232, 143, 0.3);
}
.btn-primary:active {
  background: var(--primary-active);
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(0, 232, 143, 0.2);
}
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid rgba(0, 232, 143, 0.4);
}
.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(0, 232, 143, 0.08);
  color: var(--primary);
}
.btn-secondary:active { filter: brightness(0.9); }
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  border-radius: 8px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  background: rgba(11, 15, 23, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 32px 24px;
  flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-of-type { border-bottom: none; }
.mobile-menu a.active { color: var(--primary); }
.mobile-menu .btn {
  margin-top: 24px;
  width: 100%;
  min-height: 48px;
}
body.menu-open { overflow: hidden; }

/* ===== Hero ===== */
.hero-security {
  position: relative;
  min-height: 88vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  background:
    linear-gradient(180deg, rgba(11, 15, 23, 0.92) 0%, rgba(11, 15, 23, 0.78) 50%, var(--bg) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  overflow: hidden;
}
.hero-security::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  left: -120px;
  top: -100px;
  background: radial-gradient(circle, rgba(0, 232, 143, 0.25) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}
.hero-security::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -80px;
  bottom: -120px;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.25) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}
.hero-security .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid rgba(0, 232, 143, 0.5);
  background: rgba(0, 232, 143, 0.06);
  border-radius: 100px;
  padding: 6px 16px;
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}
.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}
.hero-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}
.hero-title .text-primary { color: var(--primary); }
.hero-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 32px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 600px;
}
.hero-stat {
  background: rgba(19, 26, 36, 0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  backdrop-filter: blur(8px);
}
.hero-stat .num {
  font-family: var(--data-font);
  font-size: 30px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 380px;
}
.shield-graphic {
  width: 280px;
  height: 320px;
  background: linear-gradient(145deg, rgba(0, 232, 143, 0.12), rgba(124, 92, 255, 0.1));
  border: 1px solid rgba(0, 232, 143, 0.25);
  border-radius: 32px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(0, 232, 143, 0.1);
}
.shield-graphic svg { filter: drop-shadow(0 0 20px rgba(0, 232, 143, 0.3)); }

/* ===== Pain Section ===== */
.pain-section { background: var(--bg); position: relative; }
.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.pain-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  position: relative;
  transition: var(--transition);
}
.pain-card:hover {
  background: var(--surface-hover);
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.pain-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 92, 124, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.pain-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.pain-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.pain-arrow {
  position: absolute;
  right: -18px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 14px;
  z-index: 2;
}
.pain-grid > .pain-card:last-child .pain-arrow { display: none; }

/* ===== Solution Section ===== */
.solution-section {
  background: linear-gradient(180deg, var(--bg) 0%, #0D1220 50%, var(--bg) 100%);
  position: relative;
}
.solution-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 48px;
}
.solution-media {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.solution-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: var(--transition);
}
.solution-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(11, 15, 23, 0.7) 100%);
}
.solution-media-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  z-index: 2;
  background: rgba(0, 232, 143, 0.9);
  color: #0B0F17;
  font-size: 13px;
  font-weight: 700;
  border-radius: 8px;
  padding: 6px 14px;
}
.solution-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.solution-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.solution-item:last-child { border-bottom: none; }
.solution-item-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 232, 143, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.solution-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.solution-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ===== Stats Section ===== */
.stats-section {
  position: relative;
  background:
    linear-gradient(180deg, rgba(11, 15, 23, 0.95) 0%, rgba(11, 15, 23, 0.9) 100%),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  padding: 90px 0;
  text-align: center;
}
.stats-section::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(124, 92, 255, 0.2) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}
.stats-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.stat-item { text-align: center; }
.stat-item .num {
  font-family: var(--data-font);
  font-size: 56px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  display: block;
  margin-bottom: 8px;
}
.stat-item .label {
  font-size: 14px;
  color: var(--text-muted);
  display: block;
}
.stat-item .bar {
  width: 40px;
  height: 2px;
  background: var(--primary);
  margin: 14px auto 0;
  border-radius: 2px;
}

/* ===== Process Section ===== */
.process-section { background: var(--bg); }
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.process-step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
}
.process-step:hover {
  border-color: rgba(124, 92, 255, 0.3);
  box-shadow: 0 8px 32px rgba(124, 92, 255, 0.1);
}
.process-step .step-num {
  font-family: var(--data-font);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: rgba(0, 232, 143, 0.25);
  display: block;
  margin-bottom: 16px;
}
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.process-step p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.process-step .step-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(124, 92, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 14px;
}
.process-connect {
  position: absolute;
  top: 50px;
  right: -12px;
  color: rgba(0, 232, 143, 0.5);
  font-size: 20px;
  z-index: 2;
}
.process-step:last-child .process-connect { display: none; }

/* ===== Testimonials ===== */
.testi-section { background: #0D1220; }
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.testi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.testi-card:nth-child(2) { transform: translateY(16px); }
.testi-card:hover {
  background: var(--surface-hover);
  border-color: rgba(0, 232, 143, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.testi-card:nth-child(2):hover { transform: translateY(14px); }
.testi-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.testi-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.2), rgba(124, 92, 255, 0.2));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}
.testi-stars {
  color: var(--amber);
  font-size: 14px;
  letter-spacing: 1px;
}
.testi-card blockquote {
  font-size: 14px;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 12px;
}
.testi-card .user {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.faq-wrap {
  max-width: 820px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-item.active { border-color: rgba(0, 232, 143, 0.3); }
.faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  padding: 4px 0;
}
.faq-q .q-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(0, 232, 143, 0.12);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-q .q-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
}
.faq-q .q-toggle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.active .q-toggle {
  transform: rotate(45deg);
  border-color: var(--primary);
  color: var(--primary);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease, margin 0.3s ease;
  padding: 0;
  margin: 0;
}
.faq-item.active .faq-a {
  max-height: 300px;
  padding: 12px 0 0 42px;
  margin-top: 8px;
}
.faq-a p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(135deg, rgba(0, 232, 143, 0.9), rgba(124, 92, 255, 0.9));
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
  opacity: 0.12;
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: #0B0F17;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(11, 15, 23, 0.75);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.cta-btn-dark {
  background: #0B0F17;
  color: var(--primary);
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 14px 36px;
  font-size: 16px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
}
.cta-btn-dark:hover {
  background: #141C2A;
  color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}
.cta-btn-light {
  background: transparent;
  color: #0B0F17;
  border: 2px solid #0B0F17;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 12px 34px;
  font-size: 16px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
}
.cta-btn-light:hover {
  background: rgba(11, 15, 23, 0.1);
  transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
  background: #080B10;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-social a:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--text-muted);
}
.footer-col ul a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-dim);
}
.footer-links a:hover { color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1280px) {
  .hero-security .container { grid-template-columns: 1fr 0.8fr; gap: 32px; }
  .hero-title { font-size: clamp(36px, 5vw, 54px); }
}
@media (max-width: 992px) {
  .section { padding: 72px 0; }
  .nav-links { display: none; }
  .nav-cta-desktop { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: none; }
  .mobile-menu.open { display: flex; }
  .hero-security .container { grid-template-columns: 1fr; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-btns { justify-content: center; }
  .hero-stats { margin-left: auto; margin-right: auto; }
  .hero-visual { display: none; }
  .pain-grid { grid-template-columns: 1fr 1fr; }
  .pain-arrow { display: none !important; }
  .solution-wrap { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: 2fr 2fr; gap: 40px; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-connect { display: none !important; }
  .testi-grid { grid-template-columns: 1fr; max-width: 560px; margin-left: auto; margin-right: auto; }
  .testi-card:nth-child(2) { transform: none; }
  .testi-card:nth-child(2):hover { transform: translateY(-2px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-header { height: 60px; }
  .nav-inner { height: 60px; }
  .logo-text { font-size: 16px; }
  .section { padding: 56px 0; }
  .hero-security { padding: 110px 0 56px; min-height: auto; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .hero-stat { padding: 12px; }
  .hero-stat .num { font-size: 22px; }
  .hero-stat .label { font-size: 11px; }
  .pain-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stat-item .num { font-size: 42px; }
  .faq-q .q-text { font-size: 15px; }
  .cta-section { padding: 64px 0; }
}
@media (max-width: 576px) {
  .container { padding: 0 18px; }
  .section-title { font-size: 26px; }
  .hero-title { font-size: 34px; }
  .hero-btns .btn { width: 100%; min-height: 48px; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .hero-stat .num { font-size: 18px; }
  .hero-stat .label { font-size: 10px; }
  .stats-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-btns .btn, .cta-btns a { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
  .faq-item { padding: 16px; }
  .faq-item.active .faq-a { padding-left: 0; }
}