/* roulang page: index */
:root {
  --bg-deep: #0A1A2F;
  --bg-card: #0D2137;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  --accent: #00E5A0;
  --accent-soft: rgba(0, 229, 160, 0.12);
  --accent-glow: rgba(0, 229, 160, 0.45);
  --warm: #FFB347;
  --text-main: #E6F1FF;
  --text-secondary: #94A8C1;
  --text-muted: #5C7191;
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-input: 10px;
  --radius-img: 12px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 12px 40px rgba(0, 229, 160, 0.1), 0 4px 16px rgba(0, 0, 0, 0.4);
  --font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background:
    radial-gradient(1200px 800px at 70% -10%, rgba(0, 229, 160, 0.12), transparent),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    var(--bg-deep);
  background-size: auto, 40px 40px, 40px 40px, auto;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
section {
  position: relative;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  transition: all 0.3s ease;
  line-height: 1.4;
  font-family: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, #00E5A0, #00b87a);
  color: #0A1A2F;
  box-shadow: 0 0 24px rgba(0, 229, 160, 0.45);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(0, 229, 160, 0.6);
  transform: translateY(-1px);
  text-decoration: none;
  color: #0A1A2F;
}
.btn-primary:active {
  filter: brightness(0.92);
  transform: scale(0.98);
}
.btn-primary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: none;
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}
.btn-secondary:active {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(0.98);
}
.tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.live-badge {
  background: rgba(255, 179, 71, 0.15);
  color: var(--warm);
  border: 1px solid rgba(255, 179, 71, 0.4);
}
.live-badge i {
  font-size: 10px;
  animation: pulse 1.6s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ===== 顶部倒计时条 ===== */
.topbar {
  height: 48px;
  background: rgba(10, 26, 47, 0.85);
  border-bottom: 1px solid rgba(0, 229, 160, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  z-index: 200;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.countdown {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 13px;
}
.countdown-label {
  margin-right: 4px;
}
.countdown-nums {
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  background: rgba(0, 229, 160, 0.08);
  padding: 3px 12px;
  border-radius: 8px;
  border: 1px solid rgba(0, 229, 160, 0.25);
}
.topbar-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  padding: 4px 16px;
  border: 1px solid rgba(0, 229, 160, 0.4);
  border-radius: 999px;
  transition: all 0.3s ease;
}
.topbar-cta:hover {
  background: rgba(0, 229, 160, 0.12);
  text-decoration: none;
}

/* ===== 导航 ===== */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 26, 47, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}
.main-nav.scrolled {
  background: rgba(10, 26, 47, 0.92);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  transition: height 0.3s ease;
}
.main-nav.scrolled .nav-inner {
  height: 56px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.nav-logo:hover {
  text-decoration: none;
  color: var(--text-main);
}
.logo-badge {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #00b87a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0A1A2F;
  font-size: 17px;
  box-shadow: 0 0 16px rgba(0, 229, 160, 0.5);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links li a {
  display: inline-block;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
}
.nav-links li a:hover {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}
.nav-links li a.active {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
}
.nav-links li a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}
.nav-cta {
  padding: 10px 24px;
  font-size: 15px;
  flex-shrink: 0;
}
.hamburger {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 18px;
  width: 44px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
}
.hamburger:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Hero ===== */
.hero {
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero-copy {
  position: relative;
  z-index: 2;
}
.hero-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.hero-title .highlight {
  color: var(--accent);
  position: relative;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-visual {
  position: relative;
  z-index: 1;
}
.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  padding: 12px;
  box-shadow: var(--glass-highlight), 0 20px 60px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  transform: perspective(1200px) rotateY(-4deg) rotateX(1deg);
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(0, 229, 160, 0.4), transparent 60%);
  z-index: -1;
}
.hero-card img {
  border-radius: 14px;
  width: 100%;
  height: 340px;
  object-fit: cover;
}
.hero-card-caption {
  padding: 14px 10px 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-main);
  text-align: center;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(6px);
  opacity: 0.25;
  animation: floatOrb 7s ease-in-out infinite;
  pointer-events: none;
}
.hero-orb-1 {
  width: 200px;
  height: 200px;
  background: var(--accent);
  top: -40px;
  right: -20px;
}
.hero-orb-2 {
  width: 100px;
  height: 100px;
  background: var(--warm);
  bottom: 40px;
  left: 20px;
  animation-delay: 2s;
}
.hero-orb-3 {
  width: 60px;
  height: 60px;
  background: #4a9eff;
  top: 50%;
  left: -30px;
  animation-delay: 4s;
}
@keyframes floatOrb {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-18px); }
}

/* ===== 通用板块 ===== */
.section {
  padding: 80px 0;
}
.section-header {
  margin-bottom: 48px;
  max-width: 680px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
}
.divider {
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 4px;
  margin-bottom: 24px;
}

/* ===== 活动卖点 ===== */
.features {
  padding: 80px 0;
  background: linear-gradient(180deg, rgba(10, 26, 47, 0.4), rgba(10, 26, 47, 0.8));
  position: relative;
}
.features::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 400px at 20% 30%, rgba(0, 229, 160, 0.06), transparent);
  pointer-events: none;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--glass-highlight), var(--shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  position: relative;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 160, 0.5);
  box-shadow: var(--shadow-hover);
}
.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(0, 229, 160, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}
.core-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 11px;
  padding: 3px 8px;
  background: var(--warm);
  color: #0A1A2F;
  border-radius: 999px;
  font-weight: 600;
}

/* ===== 图墙 ===== */
.gallery-section {
  padding: 80px 0;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 160px;
  gap: 16px;
}
.gallery-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  grid-column: span 6;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  cursor: pointer;
}
.gallery-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-card:hover img {
  transform: scale(1.04);
}
.gallery-card figcaption {
  position: absolute;
  left: 18px;
  bottom: 14px;
  z-index: 2;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}
.gallery-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10, 26, 47, 0.85) 100%);
  transition: opacity 0.3s ease;
}
.gallery-item-1 {
  grid-column: span 7;
}
.gallery-item-2 {
  grid-column: span 5;
}
.gallery-item-3 {
  grid-column: span 4;
}
.gallery-item-4 {
  grid-column: span 4;
}
.gallery-item-5 {
  grid-column: span 4;
}
.gallery-more {
  text-align: center;
  margin-top: 28px;
}
.gallery-more a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}
.gallery-more a:hover {
  color: var(--accent);
  text-decoration: none;
  gap: 10px;
}

/* ===== CTA 区块 ===== */
.cta-section {
  padding: 80px 0;
  background:
    radial-gradient(500px 260px at 25% 20%, rgba(0, 229, 160, 0.16), transparent),
    radial-gradient(400px 220px at 80% 80%, rgba(255, 179, 71, 0.12), transparent);
  position: relative;
}
.cta-inner {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.cta-title {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.cta-desc {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}
.cta-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: 820px;
  margin: 0 auto;
}
.cta-form .form-group {
  flex: 1 1 180px;
  min-width: 0;
}
.cta-form input {
  width: 100%;
  height: 52px;
  padding: 0 16px;
  background: rgba(10, 26, 47, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-input);
  color: var(--text-main);
  font-size: 15px;
  transition: all 0.3s ease;
  font-family: inherit;
}
.cta-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 229, 160, 0.15);
}
.cta-form input::placeholder {
  color: var(--text-muted);
}
.form-submit {
  height: 52px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  flex-shrink: 0;
}
.code-group {
  position: relative;
  flex: 1 1 140px;
}
.code-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  height: 40px;
  padding: 0 14px;
  background: rgba(0, 229, 160, 0.15);
  border: none;
  border-radius: 8px;
  color: var(--accent);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.code-btn:hover {
  background: rgba(0, 229, 160, 0.25);
}
.form-msg {
  margin-top: 20px;
  font-size: 15px;
  color: var(--accent);
  min-height: 22px;
  font-weight: 500;
}
.form-msg.error {
  color: #ff6b6b;
}

/* ===== 最新动态 ===== */
.news-section {
  padding: 80px 0;
  background: linear-gradient(0deg, rgba(10, 26, 47, 0.5), transparent);
}
.news-list {
  max-width: 860px;
  margin: 0 auto;
}
.news-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 18px;
  box-shadow: var(--glass-highlight), var(--shadow-card);
  transition: all 0.3s ease;
  margin-bottom: 16px;
}
.news-card:hover {
  border-color: rgba(0, 229, 160, 0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.news-thumb {
  width: 120px;
  height: 90px;
  border-radius: var(--radius-img);
  overflow: hidden;
  background: var(--bg-card);
  flex-shrink: 0;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.06);
}
.news-info {
  min-width: 0;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.news-date {
  font-size: 13px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.news-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.news-title a {
  color: var(--text-main);
  transition: color 0.3s ease;
}
.news-title a:hover {
  color: var(--accent);
  text-decoration: none;
}
.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  transition: all 0.3s ease;
}
.news-link:hover {
  gap: 8px;
  text-decoration: none;
}
.empty-tip {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 16px;
  background: var(--glass-bg);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-card);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--glass-highlight), var(--shadow-card);
  transition: all 0.3s ease;
}
.faq-item[open] {
  border-color: rgba(0, 229, 160, 0.5);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  min-height: 48px;
  transition: background 0.3s ease;
  user-select: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  background: rgba(255, 255, 255, 0.04);
}
.faq-question {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}
.faq-icon {
  color: var(--accent);
  font-size: 18px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 20px 18px;
  margin: 0 20px 16px;
  border-left: 3px solid var(--accent);
  background: rgba(10, 26, 47, 0.35);
  border-radius: 0 10px 10px 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.faq-answer p {
  padding: 12px 16px 4px;
}

/* ===== 页脚 ===== */
footer {
  background: rgba(4, 12, 24, 0.95);
  border-top: 1px solid rgba(0, 229, 160, 0.25);
  padding-top: 60px;
  position: relative;
}
footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 320px;
}
.footer-links h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
}
.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.3s ease;
}
.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
}
.footer-contact h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
}
.footer-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 22px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-card {
    transform: none;
    max-width: 560px;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .topbar-inner {
    justify-content: center;
    gap: 12px;
  }
  .topbar-cta {
    display: none;
  }
  .countdown-label {
    display: none;
  }
  .nav-inner {
    height: 60px;
  }
  .main-nav.scrolled .nav-inner {
    height: 56px;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 26, 47, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px 24px 20px;
    gap: 4px;
    border-bottom: 1px solid rgba(0, 229, 160, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links li a {
    display: block;
    width: 100%;
    padding: 12px 16px;
  }
  .nav-links li a.active::after {
    display: none;
  }
  .nav-cta {
    padding: 9px 18px;
    font-size: 14px;
  }
  .hamburger {
    display: inline-flex;
  }
  .hero {
    padding: 56px 0 48px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-card img {
    height: 240px;
  }
  .section {
    padding: 48px 0;
  }
  .features {
    padding: 48px 0;
  }
  .gallery-section {
    padding: 48px 0;
  }
  .cta-section {
    padding: 48px 0;
  }
  .news-section {
    padding: 48px 0;
  }
  .faq-section {
    padding: 48px 0;
  }
  .gallery-grid {
    grid-auto-rows: 200px;
  }
  .gallery-item-1,
  .gallery-item-2,
  .gallery-item-3,
  .gallery-item-4,
  .gallery-item-5 {
    grid-column: span 12;
  }
  .cta-form {
    flex-direction: column;
  }
  .cta-form .form-group,
  .cta-form .code-group {
    flex: 1 1 auto;
  }
  .form-submit {
    width: 100%;
  }
  .news-card {
    grid-template-columns: 1fr;
  }
  .news-thumb {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .nav-logo {
    font-size: 18px;
  }
}

/* roulang page: article */
:root {
  --bg-deep: #0A1A2F;
  --bg-card: #0D2137;
  --accent: #00E5A0;
  --accent-soft: rgba(0, 229, 160, 0.14);
  --accent-glow: rgba(0, 229, 160, 0.45);
  --amber: #FFB347;
  --amber-soft: rgba(255, 179, 71, 0.16);
  --text-main: #E6F1FF;
  --text-secondary: #94A8C1;
  --text-muted: #5C7191;
  --grid-line: rgba(255, 255, 255, 0.04);
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.14);
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-input: 10px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 12px 40px rgba(0, 229, 160, 0.1), 0 4px 16px rgba(0, 0, 0, 0.4);
  --spacing-section: 80px;
  --spacing-card: 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background:
    radial-gradient(1200px 800px at 70% -10%, rgba(0, 229, 160, 0.12), transparent 60%),
    radial-gradient(900px 600px at 10% 30%, rgba(0, 229, 160, 0.06), transparent 50%),
    var(--bg-deep);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

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

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

button,
input {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
}

.countdown-bar {
  height: 48px;
  background: rgba(10, 26, 47, 0.85);
  border-bottom: 1px solid rgba(0, 229, 160, 0.35);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.countdown-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--amber);
  background: var(--amber-soft);
  border: 1px solid rgba(255, 179, 71, 0.45);
  border-radius: 999px;
  padding: 4px 14px;
  white-space: nowrap;
}

.live-badge i {
  font-size: 8px;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.countdown-timer {
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cd-num {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 8px;
  padding: 2px 8px;
  min-width: 42px;
  text-align: center;
}

.cd-sep {
  color: var(--accent);
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  50% { opacity: 0.3; }
}

.countdown-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  border: 1px solid rgba(0, 229, 160, 0.5);
  border-radius: 999px;
  padding: 6px 18px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.countdown-action:hover {
  background: rgba(0, 229, 160, 0.12);
  box-shadow: 0 0 18px rgba(0, 229, 160, 0.25);
  color: #fff;
}

.main-nav {
  height: 72px;
  background: rgba(10, 26, 47, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: height 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled .main-nav {
  height: 56px;
  background: rgba(10, 26, 47, 0.92);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-logo:hover {
  color: #fff;
}

.logo-badge {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 229, 160, 0.25), rgba(0, 229, 160, 0.05));
  border: 1px solid rgba(0, 229, 160, 0.4);
  border-radius: 10px;
  color: var(--accent);
  font-size: 17px;
  box-shadow: 0 0 20px rgba(0, 229, 160, 0.15);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
  position: relative;
}

.nav-links a:hover {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(0, 229, 160, 0.7);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  padding: 12px 28px;
  text-decoration: none;
  line-height: 1.4;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, #00E5A0, #00C084);
  color: #062A1E !important;
  box-shadow: 0 0 24px rgba(0, 229, 160, 0.45), 0 4px 16px rgba(0, 0, 0, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 36px rgba(0, 229, 160, 0.6), 0 6px 20px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
}

.btn-primary:active {
  filter: brightness(0.92);
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.nav-cta {
  padding: 10px 22px;
  font-size: 15px;
}

.hamburger {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  color: var(--text-main);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--accent);
}

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

main {
  flex: 1;
}

.section-spacer {
  height: var(--spacing-section);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

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

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

.breadcrumb i {
  font-size: 10px;
  color: var(--text-muted);
}

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

.article-hero {
  padding: 32px 0 24px;
}

.article-hero .container {
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(0, 229, 160, 0.12), transparent 60%),
    linear-gradient(135deg, rgba(13, 33, 55, 0.95), rgba(10, 26, 47, 0.88));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  padding: 48px 56px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.article-hero .container::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.article-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 20px;
  position: relative;
  word-break: break-word;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  position: relative;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
}

.meta-item i {
  color: var(--accent);
  font-size: 13px;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 6px;
  line-height: 1.5;
}

.article-summary {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
  max-width: 90%;
}

.article-body {
  padding: 48px 0 24px;
  position: relative;
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 48px;
  box-shadow: var(--shadow-card);
}

.article-content h2 {
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  margin: 40px 0 18px;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin: 32px 0 14px;
}

.article-content p {
  font-size: 16px;
  line-height: 1.9;
  color: #B7C8DF;
  margin-bottom: 20px;
}

.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(0, 229, 160, 0.4);
  text-underline-offset: 4px;
  transition: color 0.2s;
}

.article-content a:hover {
  color: #35f2ba;
  text-decoration-color: var(--accent);
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
  color: #B7C8DF;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  padding: 20px 24px;
  margin: 28px 0;
  color: var(--text-secondary);
  font-style: normal;
  line-height: 1.8;
}

.article-content img {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  margin: 24px auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.article-content pre {
  background: #071120;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 20px 24px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
  color: #A5C9E0;
}

.article-content code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 14px;
  background: rgba(0, 229, 160, 0.1);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
}

.article-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.article-content hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin: 36px 0;
}

.article-pagination {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 0 16px;
  text-align: center;
}

.article-empty {
  max-width: 600px;
  margin: 60px auto;
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 60px 40px;
}

.article-empty i {
  font-size: 40px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.article-empty h2 {
  font-size: 24px;
  color: var(--text-main);
  margin-bottom: 12px;
}

.article-empty p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.related-posts {
  padding: 48px 0;
}

.related-posts .section-head {
  text-align: center;
  margin-bottom: 40px;
}

.related-posts .section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--text-main);
}

.related-posts .section-head::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(0, 229, 160, 0.1));
  border-radius: 4px;
  margin: 16px auto 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-card);
}

.related-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-card);
}

.related-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 160, 0.5);
  box-shadow: var(--shadow-hover);
}

.related-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.related-thumb {
  position: relative;
  height: 140px;
  overflow: hidden;
  background: linear-gradient(135deg, #0D2137, #122940);
}

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

.related-card:hover .related-thumb img {
  transform: scale(1.05);
}

.related-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 26, 47, 0.5), transparent 50%);
  pointer-events: none;
}

.related-info {
  padding: 20px;
}

.related-info .tag {
  margin-bottom: 10px;
  font-size: 12px;
  padding: 3px 10px;
}

.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color 0.2s;
}

.related-card:hover .related-info h3 {
  color: var(--accent);
}

.related-info p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  transition: gap 0.2s ease;
}

.related-card:hover .read-more {
  gap: 10px;
}

.cta-section {
  padding: 60px 0;
  position: relative;
  background: var(--bg-deep);
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.18), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -120px;
  left: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255, 179, 71, 0.1), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  backdrop-filter: blur(16px);
  padding: 56px 48px;
  position: relative;
  box-shadow: 0 0 60px rgba(0, 229, 160, 0.08), var(--shadow-card);
}

.cta-box h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}

.cta-box h2 span {
  color: var(--accent);
}

.cta-box>p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 440px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 12px;
}

.form-group {
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  height: 46px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-input);
  padding: 0 16px;
  color: var(--text-main);
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 229, 160, 0.15), 0 0 16px rgba(0, 229, 160, 0.2);
}

.form-input:disabled {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 179, 71, 0.5);
  color: var(--text-muted);
}

.cta-form .btn {
  width: 100%;
  margin-top: 8px;
}

.form-tip {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
}

.faq-section {
  padding: 60px 0;
}

.faq-section .section-head {
  text-align: center;
  margin-bottom: 40px;
}

.faq-section .section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--text-main);
}

.faq-section .section-head::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(0, 229, 160, 0.1));
  border-radius: 4px;
  margin: 16px auto 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item.open {
  border-color: rgba(0, 229, 160, 0.4);
  box-shadow: 0 8px 32px rgba(0, 229, 160, 0.08), var(--shadow-card);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  min-height: 56px;
  user-select: none;
}

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 229, 160, 0.12);
  border: 1px solid rgba(0, 229, 160, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 13px;
  flex-shrink: 0;
  transition: transform 0.3s ease, background 0.3s;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: rgba(0, 229, 160, 0.2);
}

.faq-question h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  flex: 1;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  background: rgba(0, 0, 0, 0.12);
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px 68px;
}

.faq-answer p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent);
  padding-left: 16px;
}

footer {
  background: #060F1E;
  border-top: 1px solid rgba(0, 229, 160, 0.25);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-top: 56px;
  padding-bottom: 40px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 300px;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
}

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

@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --spacing-section: 48px;
  }

  .container {
    padding: 0 16px;
  }

  .countdown-inner {
    justify-content: center;
  }

  .countdown-action {
    display: none;
  }

  .live-badge {
    font-size: 12px;
    padding: 3px 10px;
  }

  .countdown-timer {
    font-size: 16px;
  }

  .cd-num {
    min-width: 34px;
    padding: 2px 6px;
  }

  .nav-inner {
    flex-wrap: wrap;
  }

  .main-nav {
    height: 60px;
  }

  .site-header.scrolled .main-nav {
    height: 52px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 26, 47, 0.98);
    backdrop-filter: blur(20px);
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    gap: 4px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 12px;
    font-size: 16px;
  }

  .nav-links a.active::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .article-hero .container {
    padding: 32px 24px;
  }

  .article-summary {
    max-width: 100%;
  }

  .article-content {
    padding: 28px 20px;
    border-radius: 16px;
  }

  .article-content p {
    font-size: 15px;
    line-height: 1.85;
  }

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

  .related-thumb {
    height: 180px;
  }

  .cta-box {
    padding: 36px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .faq-question h3 {
    font-size: 15px;
  }

  .faq-item.open .faq-answer {
    padding: 0 20px 20px 62px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
  }

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

  .breadcrumb .current {
    max-width: 180px;
  }
}

@media (max-width: 520px) {
  .countdown-timer {
    font-size: 14px;
    gap: 4px;
  }

  .cd-num {
    min-width: 28px;
  }

  .live-badge {
    font-size: 11px;
  }

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

  .article-meta {
    gap: 10px;
  }

  .article-content {
    padding: 20px 16px;
  }

  .article-content h2 {
    font-size: 20px;
    padding-left: 10px;
  }

  .related-thumb {
    height: 160px;
  }

  .cta-box {
    padding: 32px 18px;
    border-radius: 20px;
  }

  .cta-form .btn {
    font-size: 15px;
  }

  .faq-item.open .faq-answer {
    padding: 0 16px 18px 16px;
  }

  .faq-question {
    padding: 16px 18px;
  }

  .faq-question h3 {
    font-size: 14px;
  }
}

/* roulang page: category1 */
:root {
  --bg-primary: #0A1A2F;
  --bg-card: #0D2137;
  --bg-glass: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.14);
  --accent: #00E5A0;
  --accent-dark: #00C986;
  --amber: #FFB347;
  --text-primary: #E6F1FF;
  --text-body: #B7C8DF;
  --text-secondary: #94A8C1;
  --text-muted: #5C7191;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --radius-img: 12px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
  --shadow-hover: 0 12px 40px rgba(0, 229, 160, 0.1);
  --glow-primary: 0 0 24px rgba(0, 229, 160, 0.45);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(1200px 800px at 70% -10%, rgba(0, 229, 160, 0.12), transparent),
    var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(230, 241, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(230, 241, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  top: 30%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.08), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-img);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

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

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

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 倒计时条 */
.countdown-bar {
  background: rgba(10, 26, 47, 0.85);
  border-bottom: 1px solid rgba(0, 229, 160, 0.3);
  padding: 8px 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  z-index: 1000;
}

.countdown-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 179, 71, 0.12);
  border: 1px solid rgba(255, 179, 71, 0.4);
  color: var(--amber);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.live-badge i {
  font-size: 8px;
  vertical-align: middle;
}

.countdown-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-right: 8px;
}

.timer-digits {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}

.timer-box {
  background: rgba(0, 229, 160, 0.12);
  border: 1px solid rgba(0, 229, 160, 0.25);
  color: var(--accent);
  font-weight: 700;
  font-size: 20px;
  padding: 2px 10px;
  border-radius: 8px;
  min-width: 46px;
  text-align: center;
  display: inline-block;
}

.timer-sep {
  color: var(--accent);
  font-weight: 700;
  font-size: 20px;
}

.countdown-btn {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  padding: 4px 16px;
  border: 1px solid rgba(0, 229, 160, 0.35);
  border-radius: 999px;
  transition: var(--transition);
}

.countdown-btn:hover {
  background: rgba(0, 229, 160, 0.1);
}

/* 导航 */
.main-nav {
  background: rgba(13, 33, 55, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 999;
  transition: var(--transition);
}

.main-nav.scrolled {
  padding: 8px 0;
  background: rgba(10, 26, 47, 0.9);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo:hover {
  color: var(--accent);
}

.logo-badge {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 160, 0.15);
  border: 1px solid rgba(0, 229, 160, 0.35);
  border-radius: 10px;
  color: var(--accent);
  font-size: 18px;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  line-height: 1.2;
  white-space: nowrap;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #06281E;
  box-shadow: var(--glow-primary);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 32px rgba(0, 229, 160, 0.6);
  transform: translateY(-2px);
  color: #06281E;
}

.btn-primary:active {
  filter: brightness(0.92);
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(0, 229, 160, 0.6);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.nav-cta {
  padding: 9px 22px;
  font-size: 14px;
}

.nav-cta i {
  font-size: 14px;
}

.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  font-size: 20px;
}

/* Hero */
.hero {
  padding: 88px 0 80px;
  position: relative;
  z-index: 1;
  background:
    radial-gradient(900px 500px at 15% 20%, rgba(0, 229, 160, 0.08), transparent),
    transparent;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 229, 160, 0.1);
  border: 1px solid rgba(0, 229, 160, 0.3);
  color: var(--accent);
  padding: 5px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}

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

.hero-visual {
  position: relative;
}

.visual-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 16px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.visual-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(0, 229, 160, 0.3), transparent 40%, rgba(0, 229, 160, 0.15));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.visual-card img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: 14px;
}

.visual-card::after {
  content: "";
  position: absolute;
  top: 20%;
  right: -10%;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(0, 229, 160, 0.2), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* 区块标题 */
.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(0, 229, 160, 0.08);
  border: 1px solid rgba(0, 229, 160, 0.2);
  padding: 5px 16px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
}

/* 功能区 */
.features-section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
  background: rgba(10, 26, 47, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 160, 0.5);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: rgba(0, 229, 160, 0.12);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

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

/* 场景区 */
.scenario-section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

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

.scenario-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.scenario-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 160, 0.4);
  box-shadow: var(--shadow-hover);
}

.scenario-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 0;
}

.scenario-body {
  padding: 28px;
}

.scenario-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.scenario-body p {
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 18px;
}

.text-link {
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.text-link:hover {
  gap: 10px;
}

.text-link i {
  font-size: 14px;
}

/* 流程区 */
.process-section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
  background: rgba(10, 26, 47, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process-step {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  padding: 36px 24px;
  position: relative;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  text-align: center;
}

.process-step:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 160, 0.4);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(0, 229, 160, 0.12);
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
}

.step-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* FAQ区 */
.faq-section {
  padding: 80px 0;
  position: relative;
  z-index: 1;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(0, 229, 160, 0.4);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 28px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  transition: var(--transition);
  min-height: 48px;
}

.faq-question:hover {
  color: var(--accent);
}

.faq-question i {
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 360px;
}

.faq-answer p {
  padding: 0 28px 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-body);
  border-left: 3px solid var(--accent);
  margin-left: 28px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 0 8px 8px 0;
  padding-left: 20px;
}

/* CTA区 */
.cta-section {
  padding: 80px 0 100px;
  position: relative;
  z-index: 1;
  background:
    radial-gradient(600px 300px at 20% 60%, rgba(0, 229, 160, 0.08), transparent),
    radial-gradient(500px 250px at 80% 30%, rgba(255, 179, 71, 0.06), transparent),
    transparent;
}

.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 24px;
  padding: 56px 48px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
  position: relative;
}

.cta-box h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.cta-box p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}

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

/* 页脚 */
footer {
  background: #07121F;
  border-top: 2px solid rgba(0, 229, 160, 0.3);
  padding-top: 56px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* 响应式 */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-inner {
    gap: 40px;
  }

  .visual-card img {
    height: 280px;
  }
}

@media (max-width: 768px) {
  .countdown-inner {
    gap: 12px;
  }

  .countdown-label {
    display: none;
  }

  .countdown-btn {
    display: none;
  }

  .timer-box {
    font-size: 16px;
    min-width: 36px;
    padding: 2px 8px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 26, 47, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 16px;
  }

  .nav-links a.active::after {
    display: none;
  }

  .hamburger {
    display: inline-flex;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 56px 0 48px;
  }

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

  .hero-content {
    text-align: center;
  }

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

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

  .visual-card img {
    height: 220px;
  }

  .features-section,
  .scenario-section,
  .process-section,
  .faq-section,
  .cta-section {
    padding: 48px 0;
  }

  .features-grid,
  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

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

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

  .scenario-card img {
    height: 180px;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 24px;
  }

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

  .section-head {
    margin-bottom: 32px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .features-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .timer-box {
    font-size: 14px;
    min-width: 32px;
    padding: 2px 6px;
  }

  .timer-sep {
    font-size: 14px;
  }

  .live-badge {
    font-size: 12px;
    padding: 3px 10px;
  }

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

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .faq-question {
    padding: 16px 20px;
    font-size: 15px;
  }

  .faq-answer p {
    padding: 0 16px 16px;
    margin-left: 20px;
  }
}

/* 静态资源占位 */
.img-placeholder {
  background: linear-gradient(135deg, #0D2137, #0A1A2F);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
}