/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #E14B3B;
  --primary-dark: #C93A2B;
  --primary-light: #FF6B5B;
  --accent: #2DE0A6;
  --accent-glow: rgba(45, 224, 166, 0.35);
  --primary-glow: rgba(225, 75, 59, 0.28);
  --dark-bg: #0B0E14;
  --dark-bg-2: #11151E;
  --dark-card: rgba(255,255,255,0.06);
  --content-bg: #F6F4EF;
  --card-bg: #FFFFFF;
  --text-primary: #1D232C;
  --text-secondary: #5B6470;
  --text-light: #AAB2BD;
  --border: #E5E1D9;
  --border-light: #ECE8E0;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.14);
  --transition: 0.2s ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
}

/* ============ Reset / Base ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-primary);
  background: var(--content-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary-dark);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
  font-size: 1rem;
}
ul, ol {
  list-style: none;
}

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

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(225, 75, 59, 0.25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(225, 75, 59, 0.35);
}
.btn-primary:active {
  transform: scale(0.98) translateY(1px);
}
.btn-primary:focus-visible {
  outline: 3px solid var(--primary-glow);
  outline-offset: 2px;
}
.btn-outline {
  background: transparent;
  color: #E8ECF0;
  border: 1px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 0 12px rgba(45, 224, 166, 0.2);
}
.btn-outline:active {
  transform: scale(0.98);
}
.btn-outline:focus-visible {
  outline: 3px solid var(--accent-glow);
  outline-offset: 2px;
}
.btn-accent {
  background: var(--accent);
  color: #0B0E14;
  font-weight: 700;
}
.btn-accent:hover {
  background: #4BEDBB;
  color: #0B0E14;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(45, 224, 166, 0.3);
}
.btn-block {
  width: 100%;
}

/* ============ Header / Nav ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark-bg);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, #FF7A4D 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 0 16px rgba(225, 75, 59, 0.4);
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-main {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}
.logo-sub {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 2px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  display: inline-block;
  padding: 8px 16px;
  color: #C3C9D2;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 6px;
  position: relative;
  transition: color var(--transition);
}
.main-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,0.05);
}
.main-nav a.active {
  color: #fff;
  font-weight: 600;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow), 0 0 20px rgba(45,224,166,0.15);
  border-radius: 2px;
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-cta .btn {
  height: 40px;
  padding: 0 22px;
  font-size: 0.9rem;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.menu-toggle:hover {
  background: rgba(255,255,255,0.15);
}
.menu-toggle:focus-visible {
  outline: 3px solid var(--accent-glow);
  outline-offset: 2px;
}

/* 移动端抽屉 */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--dark-bg);
  z-index: 99;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  padding: 16px 24px 24px;
  max-height: calc(100vh - 72px);
  overflow-y: auto;
}
.mobile-drawer.open {
  display: block;
}
.mobile-drawer a {
  display: block;
  padding: 14px 12px;
  color: #D3D9E1;
  font-size: 1.05rem;
  font-weight: 500;
  border-radius: 8px;
  border-left: 3px solid transparent;
}
.mobile-drawer a:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
}
.mobile-drawer a.active {
  color: #fff;
  background: rgba(45,224,166,0.08);
  border-left-color: var(--accent);
}
.mobile-drawer .btn {
  margin-top: 16px;
  width: 100%;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  background: var(--dark-bg);
  padding: 88px 0 96px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.22;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11,14,20,0.96) 0%, rgba(11,14,20,0.85) 45%, rgba(11,14,20,0.6) 100%);
}
.hero-grid-deco {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}
.hero-content {
  max-width: 620px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(45,224,166,0.12);
  border: 1px solid rgba(45,224,166,0.3);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-tag i {
  font-size: 0.8rem;
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.hero h1 .highlight {
  color: var(--accent);
}
.hero-sub {
  font-size: 1.08rem;
  color: #B8C0CC;
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-meta {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
}
.hero-meta-item .num {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
}
.hero-meta-item .label {
  font-size: 0.82rem;
  color: #848D9A;
}

/* 登录面板 */
.login-panel-wrap {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(45,224,166,0.25);
  border-radius: 16px;
  padding: 36px 32px;
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 0 0 4px rgba(45,224,166,0.04);
}
.login-panel-wrap h3 {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.login-panel-wrap .login-sub {
  color: #8A93A1;
  font-size: 0.88rem;
  margin-bottom: 24px;
}
.login-form .form-group {
  margin-bottom: 18px;
}
.login-form label {
  display: block;
  color: #C3C9D2;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 6px;
}
.login-form input {
  width: 100%;
  height: 46px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(11,14,20,0.6);
  color: #fff;
  padding: 0 14px;
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.login-form input::placeholder {
  color: #5F6873;
}
.login-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.login-form .btn {
  width: 100%;
  height: 48px;
  margin-top: 6px;
  font-size: 1rem;
}
.login-form-links {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  font-size: 0.85rem;
}
.login-form-links a {
  color: #8A93A1;
}
.login-form-links a:hover {
  color: var(--accent);
}

/* ============ Section 通用 ============ */
.section {
  padding: 80px 0;
}
.section-header {
  margin-bottom: 48px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-primary);
}
.section-sub {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 720px;
  margin-top: 12px;
  line-height: 1.7;
}

/* ============ 最新动态资讯 ============ */
.news-section {
  background: var(--content-bg);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(225,75,59,0.3);
}
.news-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: #F0EDE6;
  overflow: hidden;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.05);
}
.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(225,75,59,0.92);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 100px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
  z-index: 2;
}
.news-content {
  padding: 20px 22px 22px;
}
.news-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-content h3 a {
  color: var(--text-primary);
}
.news-content h3 a:hover {
  color: var(--primary);
}
.news-summary {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: #939BA5;
  border-top: 1px solid #F0EDE6;
  padding-top: 14px;
}
.news-meta time i {
  margin-right: 4px;
}
.news-meta .read-more {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}
.news-meta .read-more:hover {
  gap: 8px;
  color: var(--primary-dark);
}

/* 空态 */
.empty-state {
  background: var(--card-bg);
  border: 2px dashed #D6D2C9;
  border-radius: 12px;
  padding: 60px 40px;
  text-align: center;
  grid-column: 1 / -1;
}
.empty-state i {
  font-size: 2.2rem;
  color: #B8B2A8;
  margin-bottom: 14px;
}
.empty-state p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ============ 核心入口矩阵 ============ */
.entry-section {
  background: var(--dark-bg);
  position: relative;
  overflow: hidden;
}
.entry-section::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(225,75,59,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.entry-section .section-title {
  color: #fff;
}
.entry-section .section-sub {
  color: #A0A9B5;
}
.entry-grid-wide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.entry-grid-narrow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.entry-card {
  position: relative;
  background: rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 32px 28px;
  transition: all var(--transition);
  overflow: hidden;
}
.entry-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.entry-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.3);
}
.entry-card:hover::before {
  opacity: 1;
}
.entry-card .icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(225,75,59,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary-light);
  margin-bottom: 20px;
  transition: all var(--transition);
}
.entry-card:hover .icon-wrap {
  background: rgba(225,75,59,0.35);
  box-shadow: 0 0 20px rgba(225,75,59,0.3);
  transform: scale(1.06);
}
.entry-card h3 {
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.entry-card p {
  color: #A0A9B5;
  font-size: 0.9rem;
  line-height: 1.65;
}
.entry-card .enter-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  transition: gap var(--transition);
}
.entry-card .enter-link:hover {
  gap: 10px;
}

/* ============ 用户评价轮播 ============ */
.testimonial-section {
  background: var(--content-bg);
}
.testimonial-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.testimonial-track {
  overflow: hidden;
}
.testimonial-slides {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.testimonial-slide {
  min-width: 100%;
  padding: 0 12px;
}
.testimonial-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 44px 48px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.testimonial-card .quote-icon {
  font-size: 1.8rem;
  color: var(--primary);
  opacity: 0.3;
  margin-bottom: 16px;
}
.testimonial-card .quote-text {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 24px;
}
.testimonial-card .quote-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.testimonial-card .author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}
.testimonial-card .author-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.testimonial-card .author-tag {
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  z-index: 3;
}
.slider-arrow:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-50%) scale(1.06);
}
.slider-arrow.prev {
  left: -70px;
}
.slider-arrow.next {
  right: -70px;
}
.slider-arrow:focus-visible {
  outline: 3px solid var(--accent-glow);
  outline-offset: 2px;
}
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 26px;
}
.slider-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #D0CBC2;
  transition: all var(--transition);
}
.slider-dots .dot.active {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  transform: scale(1.3);
}

/* ============ 保障条 ============ */
.guarantee-section {
  background: #FFF;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.guarantee-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.guarantee-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(225,75,59,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.guarantee-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.guarantee-text p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ============ FAQ ============ */
.faq-section {
  background: var(--content-bg);
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item.active {
  border-color: rgba(225,75,59,0.3);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--transition);
  width: 100%;
  text-align: left;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #F0EDE6;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all var(--transition);
}
.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}
.faq-item.active .faq-answer {
  max-height: 300px;
}

/* ============ CTA ============ */
.cta-section {
  background: var(--dark-bg);
  position: relative;
  padding: 72px 0;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(45,224,166,0.18) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-section::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(225,75,59,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: #fff;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-content p {
  color: #A0A9B5;
  font-size: 1rem;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

/* ============ Footer ============ */
.site-footer {
  background: #07090D;
  color: #8A93A1;
  padding-top: 64px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo {
  margin-bottom: 18px;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: #8A93A1;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-col ul a:hover {
  color: var(--accent);
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.9rem;
}
.footer-contact i {
  color: var(--primary);
  width: 16px;
  text-align: center;
}
.footer-contact a {
  color: #8A93A1;
}
.footer-contact a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 22px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #5F6873;
}
.footer-bottom .domain {
  color: #8A93A1;
  font-weight: 600;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-content {
    max-width: 100%;
  }
  .slider-arrow.prev {
    left: -14px;
  }
  .slider-arrow.next {
    right: -14px;
  }
  .guarantee-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .header-cta {
    display: none;
  }
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .hero {
    padding: 56px 0 64px;
  }
  .hero-inner {
    gap: 40px;
  }
  .hero-meta {
    flex-wrap: wrap;
    gap: 16px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .section {
    padding: 56px 0;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .entry-grid-wide {
    grid-template-columns: 1fr;
  }
  .entry-grid-narrow {
    grid-template-columns: 1fr;
  }
  .testimonial-card {
    padding: 32px 24px;
  }
  .guarantee-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .guarantee-item {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .login-panel-wrap {
    padding: 28px 22px;
  }
  .slider-arrow {
    display: none;
  }
  .testimonial-slide {
    padding: 0;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .header-inner {
    height: 64px;
  }
  .logo-main {
    font-size: 1rem;
  }
  .logo-sub {
    font-size: 0.7rem;
  }
  .hero h1 {
    font-size: 1.7rem;
  }
  .hero-sub {
    font-size: 0.95rem;
  }
  .guarantee-grid {
    grid-template-columns: 1fr;
  }
  .guarantee-item {
    flex-direction: row;
    text-align: left;
  }
  .faq-question {
    font-size: 0.95rem;
    padding: 16px 18px;
  }
}

/* ============ 无障碍 ============ */
a:focus-visible {
  outline: 3px solid var(--accent-glow);
  outline-offset: 2px;
  border-radius: 4px;
}

/* roulang page: category1 */
:root {
  --primary: #E14B3B;
  --primary-hover: #C73A2B;
  --primary-light: #FDE8E5;
  --accent: #2DE0A6;
  --accent-dark: #1CB985;
  --dark: #0B0E14;
  --dark-soft: #141A24;
  --dark-border: #263040;
  --bg-content: #F6F4EF;
  --card-bg: #FFFFFF;
  --text-main: #1D232C;
  --text-secondary: #5B6470;
  --text-reverse: #F2F5F7;
  --text-muted: #8A929E;
  --border: #E5E1D9;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.14);
  --shadow-neon: 0 0 16px rgba(225, 75, 59, 0.35);
  --transition: 0.2s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-content);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

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

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  height: 72px;
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, #F05A4A 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 0 12px rgba(225, 75, 59, 0.35);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-main {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.logo-sub {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active {
  color: #fff;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent), 0 0 16px rgba(45, 224, 166, 0.4);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 12px 28px;
  min-height: 44px;
  font-size: 0.95rem;
  box-shadow: 0 2px 8px rgba(225, 75, 59, 0.25);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(225, 75, 59, 0.35);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 11px 26px;
  min-height: 44px;
  font-size: 0.95rem;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

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

.btn-sm {
  padding: 9px 22px;
  min-height: 38px;
  font-size: 0.875rem;
  border-radius: 6px;
}

.btn-dark {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 11px 26px;
  min-height: 44px;
}

.btn-dark:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-lg {
  padding: 15px 42px;
  min-height: 52px;
  font-size: 1.05rem;
  border-radius: 8px;
}

.btn-neon {
  box-shadow: 0 0 18px rgba(225, 75, 59, 0.35);
}

.btn-neon:hover {
  box-shadow: 0 0 26px rgba(225, 75, 59, 0.5);
}

.btn:focus-visible {
  outline: 4px solid rgba(45, 224, 166, 0.35);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition);
}

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

/* ===== Hero ===== */
.hero-category {
  position: relative;
  background: var(--dark);
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  padding: 100px 0 100px;
  overflow: hidden;
}

.hero-category::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11, 14, 20, 0.92) 30%, rgba(11, 14, 20, 0.72) 70%, rgba(11, 14, 20, 0.85) 100%);
}

.hero-category::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-content .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  padding: 6px 14px;
  background: rgba(45, 224, 166, 0.08);
  border: 1px solid rgba(45, 224, 166, 0.2);
  border-radius: 999px;
}

.hero-content h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

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

.hero-content p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-points {
  display: flex;
  gap: 28px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-points .point {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.875rem;
}

.hero-points .point i {
  color: var(--accent);
  font-size: 16px;
}

.login-panel {
  background: rgba(20, 26, 36, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(45, 224, 166, 0.25);
  border-radius: var(--radius-lg);
  padding: 34px 32px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35), 0 0 30px rgba(45, 224, 166, 0.06);
}

.login-panel h3 {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.login-panel .panel-sub {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.85rem;
  margin-bottom: 26px;
}

.login-panel .form-group {
  margin-bottom: 18px;
}

.login-panel .form-group label {
  display: block;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.login-panel .form-group input {
  width: 100%;
  height: 46px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  padding: 0 16px;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.login-panel .form-group input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.login-panel .form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 224, 166, 0.18);
}

.login-panel .btn-submit {
  width: 100%;
  margin-top: 6px;
}

.panel-links {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  font-size: 0.825rem;
}

.panel-links a {
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition);
}

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

.panel-security {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
}

.panel-security i {
  color: var(--accent);
}

/* ===== 区块通用 ===== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-header .section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.3;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ===== 登录步骤 ===== */
.steps-section {
  background: var(--bg-content);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px 26px;
  counter-increment: step;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.step-card::before {
  content: "0" counter(step);
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 2.4rem;
  font-weight: 800;
  color: rgba(225, 75, 59, 0.1);
  line-height: 1;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
  transition: all var(--transition);
}

.step-card:hover .step-icon {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-neon);
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 登录方式 ===== */
.methods-section {
  background: #fff;
}

.methods-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 26px;
}

.method-card {
  background: var(--bg-content);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.method-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

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

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

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

.method-card .method-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 14, 20, 0.45), transparent 55%);
}

.method-card .method-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(11, 14, 20, 0.75);
  backdrop-filter: blur(4px);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(45, 224, 166, 0.25);
}

.method-card .method-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.method-card .method-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.method-card .method-body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.method-card .method-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
}

.method-card .method-link i {
  transition: transform var(--transition);
}

.method-card .method-link:hover i {
  transform: translateX(4px);
}

/* ===== 问题处理 ===== */
.issues-section {
  background: var(--bg-content);
}

.issues-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 22px;
}

.issue-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.issue-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.issue-card .issue-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  margin-bottom: 16px;
}

.issue-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.issue-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
  background: #fff;
  padding: 80px 0;
}

.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-list {
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  background: transparent;
  border: none;
  padding: 22px 16px;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
}

.faq-question:hover {
  background: rgba(246, 244, 239, 0.6);
}

.faq-question .faq-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  flex: 1;
}

.faq-question .faq-toggle {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 13px;
  transition: all var(--transition);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 16px 20px;
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.8;
  border-left: 4px solid var(--primary);
  margin-left: 16px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: var(--dark);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 90px 0;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(11, 14, 20, 0.92), rgba(11, 14, 20, 0.78));
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  margin-bottom: 32px;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 60px 0 0;
  border-top: 2px solid var(--primary);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
}

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

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
}

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

.footer-col ul a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition);
}

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

.footer-contact li {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.footer-contact li i {
  color: var(--accent);
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .domain {
  color: rgba(255, 255, 255, 0.55);
}

/* ===== 焦点可见 ===== */
a:focus-visible {
  outline: 4px solid rgba(45, 224, 166, 0.35);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== 移动端导航抽屉 ===== */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 24px 24px;
  z-index: 99;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.mobile-drawer a {
  display: block;
  padding: 12px 14px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 1rem;
  border-radius: 6px;
  border-left: 3px solid transparent;
  margin-bottom: 4px;
  transition: background var(--transition), color var(--transition);
}

.mobile-drawer a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.mobile-drawer a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(45, 224, 166, 0.06);
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .methods-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .issues-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .login-panel {
    max-width: 480px;
  }
}

@media (max-width: 767px) {
  .site-header {
    height: 64px;
  }
  .main-nav {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-actions .btn-sm {
    display: none;
  }
  .hero-category {
    padding: 60px 0;
  }
  .hero-points {
    flex-direction: column;
    gap: 12px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .methods-grid {
    grid-template-columns: 1fr;
  }
  .issues-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .section {
    padding: 56px 0;
  }
  .cta-section {
    padding: 64px 0;
  }
  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-btns .btn {
    width: 100%;
  }
  .cta-btns {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-btns .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .login-panel {
    padding: 24px 20px;
  }
  .logo-main {
    font-size: 0.95rem;
  }
  .logo-sub {
    font-size: 0.7rem;
  }
}

/* roulang page: article */
:root {
    --primary: #E14B3B;
    --primary-dark: #C73A2B;
    --primary-light: #F06A5A;
    --accent: #2DE0A6;
    --accent-dark: #1BBF8A;
    --dark-bg: #0B0E14;
    --dark-bg-2: #11151E;
    --dark-border: #1E2430;
    --content-bg: #F6F4EF;
    --card-bg: #FFFFFF;
    --text-main: #1D232C;
    --text-muted: #5B6470;
    --text-light: #A8B0BC;
    --border-color: #E5E1D8;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 6px 20px rgba(0,0,0,0.10);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.14);
    --font: 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans SC', sans-serif;
    --header-height: 72px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text-main);
    background: var(--content-bg);
    line-height: 1.75;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
button { font-family: inherit; cursor: pointer; }
ul, ol { padding-left: 1.25rem; }
input, textarea { font-family: inherit; }

h1, h2, h3, h4, h5 { line-height: 1.35; font-weight: 700; color: var(--text-main); }

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

/* ---------- Header & Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 14, 20, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--dark-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 24px;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 2px 12px rgba(225, 75, 59, 0.45);
    transition: transform .2s ease, box-shadow .2s ease;
}

.logo:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(225, 75, 59, 0.6);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo-main {
    font-size: 1.15rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.03em;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 0.12em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.main-nav a {
    position: relative;
    color: rgba(255, 255, 255, 0.78);
    padding: 10px 16px;
    font-size: 0.95rem;
    border-radius: 6px;
    transition: color .2s ease, background .2s ease;
}

.main-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}

.main-nav a.active {
    color: #fff;
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 3px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(45, 224, 166, 0.6);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    font-size: 18px;
    align-items: center;
    justify-content: center;
    transition: all .2s ease;
}

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

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 24px;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid transparent;
    transition: all .22s ease;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(225, 75, 59, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(225, 75, 59, 0.4);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-outline {
    background: transparent;
    border-color: rgba(255,255,255,0.35);
    color: #fff;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 16px rgba(45, 224, 166, 0.15);
}

.btn-dark {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

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

/* ---------- Breadcrumb ---------- */
.article-hero {
    background: var(--dark-bg);
    padding: 72px 0 56px;
    position: relative;
    overflow: hidden;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center 30%;
}

.article-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11,14,20,0.96) 0%, rgba(11,14,20,0.88) 50%, rgba(17,21,30,0.78) 100%);
}

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

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.65);
    transition: color .2s ease;
}

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

.breadcrumb .sep {
    color: rgba(255, 255, 255, 0.3);
    margin: 0 2px;
}

.breadcrumb .current-title {
    color: rgba(255, 255, 255, 0.85);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}

.article-hero h1 {
    color: #fff;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.35;
    max-width: 860px;
    margin-bottom: 20px;
    letter-spacing: 0.01em;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

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

.article-meta .meta-item i {
    color: var(--accent);
    font-size: 14px;
}

.meta-cat {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    background: rgba(225, 75, 59, 0.2);
    border: 1px solid rgba(225, 75, 59, 0.4);
    border-radius: 20px;
    color: #F06A5A;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ---------- Article Layout ---------- */
.article-section {
    padding: 56px 0 40px;
}

.article-layout {
    display: block;
    max-width: 860px;
    margin: 0 auto;
}

.article-main {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 48px 56px;
    border: 1px solid var(--border-color);
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-main);
}

.article-body > * + * {
    margin-bottom: 1.25rem;
}

.article-body h2 {
    font-size: 1.65rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}

.article-body h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 64px;
    height: 2px;
    background: var(--primary);
}

.article-body h3 {
    font-size: 1.3rem;
    margin-top: 1.5rem;
    color: var(--text-main);
}

.article-body p {
    margin-bottom: 1.25rem;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.25rem;
    padding-left: 1.75rem;
}

.article-body li {
    margin-bottom: 0.5rem;
}

.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: #FAF8F5;
    padding: 20px 24px;
    margin: 1.75rem 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: normal;
    color: var(--text-muted);
}

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

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

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

.article-body img {
    border-radius: var(--radius);
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}

.article-body figure {
    margin: 1.75rem 0;
}

.article-body figcaption {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: -1rem;
    padding-bottom: 1rem;
}

.article-body code,
.article-body pre {
    font-family: 'SF Mono', Consolas, monospace;
    background: #FAF8F5;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 0.9em;
}

.article-body pre {
    padding: 20px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-body pre code {
    background: none;
    border: none;
    padding: 0;
}

/* ---------- Article Footer Meta ---------- */
.article-footer-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.article-tags .tag-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    background: #F6F4EF;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: all .2s ease;
}

.tag:hover {
    border-color: var(--accent);
    color: var(--primary);
}

.btn-back-list {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: color .2s ease;
}

.btn-back-list:hover {
    color: var(--primary);
}

/* ---------- Related Posts ---------- */
.related-section {
    padding: 56px 0 16px;
}

.related-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 32px;
}

.related-header h2 {
    font-size: clamp(1.4rem, 2.5vw, 1.9rem);
    position: relative;
    padding-left: 16px;
}

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

.related-header .view-all {
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: color .2s ease;
}

.related-header .view-all:hover { color: var(--primary); }

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.related-card {
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(45, 224, 166, 0.5);
}

.related-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}

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

.related-body {
    padding: 20px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.related-body .cat-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(225, 75, 59, 0.08);
    padding: 2px 10px;
    border-radius: 20px;
    display: inline-block;
    width: fit-content;
}

.related-body h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-body p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-body time {
    font-size: 0.825rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.related-body time i {
    color: var(--accent-dark);
}

/* ---------- Not Found State ---------- */
.not-found-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 760px;
    margin: 0 auto;
}

.not-found-state .nf-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(225, 75, 59, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 30px;
    color: var(--primary);
}

.not-found-state h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.not-found-state p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ---------- Article CTA ---------- */
.article-cta {
    background: var(--dark-bg);
    padding: 64px 0;
    margin-top: 56px;
    position: relative;
    overflow: hidden;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

.article-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11, 14, 20, 0.92);
}

.article-cta .container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.article-cta h2 {
    color: #fff;
    font-size: clamp(1.6rem, 3.2vw, 2.2rem);
    margin-bottom: 16px;
    font-weight: 700;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto 32px;
}

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

/* ---------- Footer ---------- */
.site-footer {
    background: var(--dark-bg);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 0;
    border-top: 2px solid var(--primary);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.75; color: rgba(255,255,255,0.6); }

.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 28px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.9rem;
    transition: color .2s ease;
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
}

.footer-contact li i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .domain {
    color: rgba(255, 255, 255, 0.5);
}

/* ---------- Mobile Navigation ---------- */
@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--dark-bg);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--dark-border);
        transform: translateY(-120%);
        transition: transform .3s ease;
        z-index: 999;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }

    .main-nav.open {
        transform: translateY(0);
    }

    .main-nav a {
        padding: 14px 16px;
        font-size: 1.05rem;
        border-radius: 6px;
    }

    .main-nav a.active {
        border-left: 3px solid var(--accent);
        padding-left: 20px;
    }

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

    .nav-cta {
        margin-left: auto;
        padding: 0 16px;
        min-height: 40px;
        font-size: 0.85rem;
    }
}

/* ---------- Responsive ---------- */
@media (max-width: 1023px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 767px) {
    .article-hero {
        padding: 48px 0 40px;
    }

    .breadcrumb .current-title {
        max-width: 220px;
    }

    .article-main {
        padding: 24px 20px;
        border-radius: 0;
    }

    .article-body {
        font-size: 1rem;
    }

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

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

    .btn-back-list {
        margin-top: 8px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-bottom: 32px;
    }

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

    .article-cta {
        padding: 48px 0;
        background-attachment: scroll;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }

    .logo-main {
        font-size: 1rem;
    }

    .logo-sub {
        font-size: 0.68rem;
    }

    .nav-cta {
        padding: 0 12px;
        font-size: 0.78rem;
        min-height: 38px;
    }

    .article-meta {
        gap: 12px;
    }

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

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* roulang page: category3 */
:root {
  --primary: #E14B3B;
  --primary-dark: #C23A2C;
  --primary-light: #F06A5A;
  --accent: #2DE0A6;
  --accent-dark: #1CB884;
  --ink: #0B0E14;
  --ink-deep: #0B0E14;
  --ink-soft: #151A24;
  --bg-content: #F6F4EF;
  --bg-card: #FFFFFF;
  --bg-deep: #0B0E14;
  --text-main: #1D232C;
  --text-secondary: #5B6470;
  --border: #E5E1DA;
  --border-dark: rgba(45, 224, 166, 0.3);
  --radius-lg: 12px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
  --shadow-accent: 0 0 20px rgba(45,224,166,0.35);
  --transition: 0.18s ease;
  --container: 1200px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", 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-main);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-content);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul, ol {
  list-style: none;
}

input, textarea {
  font-family: inherit;
}

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

.section {
  padding: 80px 0;
}

.section-head {
  margin-bottom: 48px;
  max-width: 720px;
}

.section-head .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(225, 75, 59, 0.08);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.section-head .section-tag i {
  font-size: 0.8rem;
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head--center .section-tag {
  background: rgba(45, 224, 166, 0.1);
  color: var(--accent-dark);
}

.dark-section {
  background: var(--ink);
  color: #F0F0F0;
}

.dark-section .section-head h2 {
  color: #FFFFFF;
}

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

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn i {
  font-size: 0.9rem;
}

.btn--primary {
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(225, 75, 59, 0.25);
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(225, 75, 59, 0.35);
}

.btn--primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(225, 75, 59, 0.2);
}

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

.btn--ghost {
  background: transparent;
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.3);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px rgba(45, 224, 166, 0.15);
  transform: translateY(-2px);
}

.btn--ghost:active {
  transform: translateY(0) scale(0.98);
}

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

.btn--dark {
  background: var(--ink);
  color: #FFFFFF;
  border-color: var(--ink);
}

.btn--dark:hover {
  background: #1E2530;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(11, 14, 20, 0.2);
}

.btn--dark:active {
  transform: translateY(0) scale(0.98);
}

.btn--accent {
  background: var(--accent);
  color: var(--ink);
  box-shadow: 0 4px 20px rgba(45, 224, 166, 0.3);
}

.btn--accent:hover {
  background: #3FEAB5;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(45, 224, 166, 0.4);
}

.btn--accent:active {
  transform: translateY(0) scale(0.98);
}

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

.btn--lg {
  min-height: 54px;
  padding: 0 40px;
  font-size: 1.05rem;
}

.btn--block {
  display: flex;
  width: 100%;
}

/* ========== Header / Navigation ========== */
.site-header {
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}

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

.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #FF6A4D);
  border-radius: 10px;
  color: #FFFFFF;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(225, 75, 59, 0.4);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-main {
  font-size: 1.1rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.02em;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  position: relative;
  padding: 10px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover {
  color: #FFFFFF;
  background: rgba(255,255,255,0.05);
}

.main-nav a.active {
  color: #FFFFFF;
  font-weight: 600;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(45, 224, 166, 0.7);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn-login {
  min-height: 40px;
  padding: 0 22px;
  font-size: 0.9rem;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 1.25rem;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  transition: background var(--transition), transform var(--transition);
}

.menu-toggle:hover {
  background: rgba(255,255,255,0.1);
}

.menu-toggle:active {
  transform: scale(0.95);
}

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

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--ink);
  z-index: 99;
  padding: 24px 16px;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.mobile-menu a {
  display: block;
  padding: 16px 20px;
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  border-radius: 10px;
  border-left: 3px solid transparent;
  transition: all var(--transition);
}

.mobile-menu a:hover {
  background: rgba(255,255,255,0.06);
  color: #FFFFFF;
}

.mobile-menu a.active {
  background: rgba(45, 224, 166, 0.08);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

.mobile-menu .mobile-cta {
  margin-top: 16px;
  padding: 0 20px;
}

.mobile-menu .btn {
  width: 100%;
}

.mobile-menu.open {
  display: flex;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background-color: var(--ink);
  background-image: linear-gradient(rgba(11, 14, 20, 0.82), rgba(11, 14, 20, 0.88)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  color: #FFFFFF;
  padding: 100px 0;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(225, 75, 59, 0.25), transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 20%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(45, 224, 166, 0.15), transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.hero-crumbs a {
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

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

.hero-crumbs .sep {
  opacity: 0.5;
}

.hero-crumbs .current {
  color: rgba(255,255,255,0.85);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
}

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

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

.hero-sub {
  font-size: 1.1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  max-width: 540px;
}

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

.hero-trust {
  margin-top: 40px;
  display: flex;
  gap: 28px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust i {
  color: var(--accent);
  font-size: 0.9rem;
}

.hero-panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(45, 224, 166, 0.25);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.hero-panel::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 40px;
  right: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.panel-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-title i {
  color: var(--accent);
}

.panel-subtitle {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 24px;
}

.security-status {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: border-color var(--transition);
}

.status-item:hover {
  border-color: rgba(45, 224, 166, 0.3);
}

.status-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.status-icon--success {
  background: rgba(45, 224, 166, 0.15);
  color: var(--accent);
}

.status-icon--warn {
  background: rgba(255, 193, 7, 0.15);
  color: #FFC107;
}

.status-info {
  flex: 1;
}

.status-info .status-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
}

.status-info .status-desc {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}

.status-check {
  color: var(--accent);
  font-size: 0.95rem;
}

/* ========== Feature Grid (交错) ========== */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.feat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.feat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(225, 75, 59, 0.3);
}

.feat-card--lg {
  grid-column: span 4;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.feat-card--lg .feat-icon {
  width: 60px;
  height: 60px;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.feat-card--sm {
  grid-column: span 2;
  text-align: center;
}

.feat-card--sm .feat-icon {
  width: 52px;
  height: 52px;
  font-size: 1.2rem;
  margin: 0 auto 16px;
}

.feat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(225, 75, 59, 0.12), rgba(45, 224, 166, 0.08));
  border-radius: 14px;
  color: var(--primary);
  margin-bottom: 18px;
  transition: all var(--transition);
}

.feat-card:hover .feat-icon {
  color: var(--accent-dark);
  box-shadow: 0 0 24px rgba(45, 224, 166, 0.25);
  background: linear-gradient(135deg, rgba(45, 224, 166, 0.15), rgba(225, 75, 59, 0.08));
}

.feat-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.feat-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.feat-card--sm h3 {
  font-size: 1.05rem;
}

/* ========== Content split sections ========== */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.split-grid--reverse .split-media {
  order: 2;
}

.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16/11;
}

.split-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11,14,20,0.15), transparent 30%);
  pointer-events: none;
}

.split-content .split-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(225, 75, 59, 0.08);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.split-content h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  margin-bottom: 18px;
  line-height: 1.35;
  color: var(--text-main);
}

.split-content p {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.split-list {
  list-style: none;
  margin-top: 20px;
}

.split-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
}

.split-list li:last-child {
  border-bottom: none;
}

.split-list li i {
  color: var(--accent-dark);
  margin-top: 4px;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ========== Process Steps ========== */
.process-section {
  background: var(--ink);
  color: #F0F0F0;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: '';
  position: absolute;
  top: -80px;
  left: -80px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(45, 224, 166, 0.12), transparent 70%);
  pointer-events: none;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}

.process-step {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
  position: relative;
}

.process-step:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(45, 224, 166, 0.3);
  transform: translateY(-4px);
}

.process-step::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -15px;
  width: 30px;
  height: 1px;
  background: rgba(45, 224, 166, 0.3);
}

.process-step:first-child::before {
  display: none;
}

.process-num {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  display: block;
}

.process-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(45, 224, 166, 0.1);
  color: var(--accent);
  font-size: 1.2rem;
  transition: all var(--transition);
}

.process-step:hover .process-icon {
  box-shadow: 0 0 24px rgba(45, 224, 166, 0.3);
  background: rgba(45, 224, 166, 0.18);
}

.process-step h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

/* ========== Scenarios ========== */
.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
  justify-content: center;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-main);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all var(--transition);
  cursor: default;
}

.tag-pill i {
  color: var(--primary);
  font-size: 0.8rem;
  transition: color var(--transition);
}

.tag-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(225, 75, 59, 0.12);
  transform: translateY(-2px);
}

.tag-pill:hover i {
  color: var(--primary);
}

.scenario-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent);
}

.scenario-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.scenario-card h3 i {
  color: var(--primary);
  font-size: 0.9rem;
}

.scenario-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
  border-color: rgba(225, 75, 59, 0.3);
}

.faq-item.active {
  border-color: rgba(225, 75, 59, 0.4);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  cursor: pointer;
  background: none;
  width: 100%;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  transition: color var(--transition);
}

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

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(225, 75, 59, 0.08);
  color: var(--primary);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: all var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #FFFFFF;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 22px 64px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ========== CTA ========== */
.cta-section {
  background: var(--ink);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(225, 75, 59, 0.18), transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.cta-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(45, 224, 166, 0.12);
  border: 1px solid rgba(45, 224, 166, 0.3);
  color: var(--accent);
  font-size: 1.5rem;
  box-shadow: 0 0 40px rgba(45, 224, 166, 0.2);
}

.cta-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.35;
}

.cta-inner p {
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 36px;
  line-height: 1.7;
}

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

/* ========== Footer ========== */
.site-footer {
  background: var(--ink);
  border-top: 2px solid rgba(225, 75, 59, 0.4);
  padding: 64px 0 0;
  color: rgba(255,255,255,0.6);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

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

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
  max-width: 360px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li {
  font-size: 0.9rem;
}

.footer-col ul a {
  color: rgba(255,255,255,0.55);
  transition: color var(--transition), padding-left var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-col ul a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
}

.footer-contact li i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.35);
}

.footer-bottom .domain {
  color: rgba(255,255,255,0.5);
}

/* ========== Responsive ========== */
@media (max-width: 1023px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-panel {
    max-width: 560px;
  }

  .feat-card--lg,
  .feat-card--sm {
    grid-column: span 3;
  }

  .feat-card--lg {
    flex-direction: column;
  }

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

  .split-grid--reverse .split-media {
    order: 0;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .process-step::before {
    display: none;
  }

  .scenario-cards {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 767px) {
  .section {
    padding: 56px 0;
  }

  .main-nav {
    display: none;
  }

  .btn-login {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-menu.open {
    display: flex;
  }

  .hero {
    padding: 64px 0;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .hero-sub {
    font-size: 1rem;
  }

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

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

  .hero-trust {
    gap: 16px;
  }

  .hero-panel {
    padding: 24px;
  }

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

  .feat-card--lg,
  .feat-card--sm {
    grid-column: span 1;
  }

  .feat-card--lg {
    flex-direction: column;
  }

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

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

  .scenario-tags {
    gap: 10px;
  }

  .tag-pill {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .faq-question {
    padding: 18px 16px;
    font-size: 0.95rem;
  }

  .faq-answer-inner {
    padding: 0 16px 18px 48px;
  }

  .cta-section {
    padding: 56px 0;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

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

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

  .footer-contact li {
    font-size: 0.85rem;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .logo-main {
    font-size: 1rem;
  }

  .logo-sub {
    font-size: 0.7rem;
  }

  .hero h1 {
    font-size: 1.65rem;
  }

  .hero-panel {
    padding: 20px;
  }

  .status-item {
    padding: 12px;
  }

  .feat-card {
    padding: 24px;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --primary: #E14B3B;
  --primary-dark: #C63A2B;
  --primary-light: #FF6B5B;
  --accent: #2DE0A6;
  --dark: #0B0E14;
  --dark-2: #11151D;
  --dark-3: #1A1F2A;
  --light: #F6F4EF;
  --white: #FFFFFF;
  --text: #1D232C;
  --text-secondary: #5B6470;
  --border: #E7E3DB;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.12);
  --shadow-primary: 0 6px 20px rgba(225,75,59,0.28);
  --font: "PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --transition: 0.2s ease;
  --container: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--light);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

ul, ol { list-style: none; }

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

input, select, textarea { font-family: inherit; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(225,75,59,0.2);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
  background: var(--primary-dark);
}
.btn-primary.btn-lg {
  height: 56px;
  padding: 0 42px;
  font-size: 1.1rem;
  border-radius: 8px;
}
.btn-primary.btn-block { width: 100%; }
.btn-primary.btn-sm { height: 40px; padding: 0 20px; font-size: 0.9rem; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: #E8EAED;
  font-size: 0.95rem;
  font-weight: 600;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.4);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(45,224,166,0.2);
}
.btn-outline:active { transform: translateY(0) scale(0.98); }

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  height: 46px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.35);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-outline-light:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ===== 标签 / 徽章 ===== */
.badge {
  display: inline-block;
  background: rgba(225,75,59,0.1);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}
.badge-accent {
  background: rgba(45,224,166,0.12);
  color: #0BA87A;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 1.1rem;
  box-shadow: 0 0 12px rgba(225,75,59,0.4);
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-main {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.logo-sub {
  color: rgba(255,255,255,0.65);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  position: relative;
  color: rgba(255,255,255,0.78);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.main-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,0.05);
}
.main-nav a.active {
  color: #fff;
  font-weight: 600;
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  transition: all var(--transition);
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }
.nav-toggle.active i:before { content: "\f00d"; }

/* ===== Hero ===== */
.page-hero {
  position: relative;
  background: var(--dark);
  padding: 84px 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 30%, rgba(225,75,59,0.2) 0%, transparent 60%), radial-gradient(ellipse at 80% 80%, rgba(45,224,166,0.12) 0%, transparent 50%);
}
.page-hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  background: rgba(45,224,166,0.12);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  border: 1px solid rgba(45,224,166,0.2);
}

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.page-hero h1 .highlight {
  color: var(--primary-light);
  position: relative;
  white-space: nowrap;
}
.page-hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}

.hero-desc {
  color: rgba(255,255,255,0.78);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-panel {
  background: rgba(17,21,29,0.82);
  border: 1px solid rgba(45,224,166,0.25);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 0 30px rgba(45,224,166,0.06), 0 20px 50px rgba(0,0,0,0.35);
  backdrop-filter: blur(6px);
}
.panel-title {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.panel-title i { color: var(--accent); }
.panel-list {
  margin-bottom: 24px;
}
.panel-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.85);
  font-size: 0.92rem;
  padding: 9px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.panel-list li:last-child { border-bottom: none; }
.panel-list i { color: var(--accent); width: 18px; text-align: center; }
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  background: var(--light);
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #C0C0B8; }

/* ===== 通用区块 ===== */
.section {
  padding: 80px 0;
}
.section.pb-0 { padding-bottom: 0; }
.section-alt {
  background: var(--white);
}

.section-head {
  margin-bottom: 48px;
}
.section-head.center { text-align: center; }
.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(225,75,59,0.08);
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
.section-head p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-top: 12px;
  max-width: 640px;
}
.section-head.center p { margin-left: auto; margin-right: auto; }

/* ===== 关于栏目 ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.about-text p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 16px;
}
.about-text p:first-of-type {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 500;
}
.check-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text);
  font-size: 0.95rem;
}
.check-list i {
  color: var(--accent);
  margin-top: 4px;
  flex-shrink: 0;
  font-size: 1.05rem;
}

.about-data {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.data-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.data-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(225,75,59,0.3);
}
.data-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.data-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 8px;
}
.data-card:nth-child(3) {
  grid-column: 1 / -1;
}

/* ===== 内容方向卡片 ===== */
.content-cats-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.content-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.content-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(225,75,59,0.25);
}
.content-card-wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: stretch;
}
.content-card-wide .card-img {
  min-height: 260px;
}
.content-card .card-img {
  overflow: hidden;
}
.content-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.content-card:hover .card-img img {
  transform: scale(1.04);
}
.card-body {
  padding: 28px;
}
.card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin: 12px 0 10px;
  line-height: 1.4;
}
.card-body p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}
.card-link i { transition: transform var(--transition); }
.card-link:hover i { transform: translateX(4px); }

/* ===== 动态时间线 ===== */
.timeline-section {
  background: var(--light);
}
.timeline {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  opacity: 0.3;
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  padding-left: 52px;
  padding-bottom: 36px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--primary);
  box-shadow: 0 0 10px rgba(225,75,59,0.4);
  z-index: 1;
}
.timeline-item:nth-child(even)::before {
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(45,224,166,0.4);
}
.timeline-date {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(225,75,59,0.08);
  padding: 2px 12px;
  border-radius: 100px;
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}
.timeline-content {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition);
}
.timeline-content:hover {
  box-shadow: var(--shadow-lg);
}
.timeline-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.timeline-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== 适用场景 ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.scenario-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(45,224,166,0.3);
}
.scenario-card-wide {
  grid-column: 1 / -1;
}
.scenario-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(225,75,59,0.1);
  color: var(--primary);
  border-radius: 10px;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: all var(--transition);
}
.scenario-card:hover .scenario-icon {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 0 16px rgba(225,75,59,0.3);
}
.scenario-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.scenario-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--border);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: background var(--transition);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-item.open {
  background: rgba(225,75,59,0.02);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 22px 16px;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
  position: relative;
}
.faq-question:hover { color: var(--primary); }
.faq-question i {
  font-size: 1rem;
  color: var(--text-secondary);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.open .faq-question i {
  transform: rotate(45deg);
  color: var(--primary);
}
.faq-item.open .faq-question::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary);
  border-radius: 0 3px 3px 0;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 16px;
}
.faq-item.open .faq-answer {
  max-height: 240px;
  padding: 0 16px 22px 22px;
}
.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: var(--dark);
  padding: 90px 0;
  overflow: hidden;
}
.cta-section .cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  z-index: 0;
}
.cta-section .cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(225,75,59,0.2) 0%, transparent 65%);
}
.cta-section .container {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
}
.cta-section h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}
.cta-section p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== 其他分类导航 ===== */
.category-links {
  background: var(--light);
  padding: 60px 0;
  border-top: 1px solid var(--border);
}
.category-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}
.category-tags a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition);
}
.category-tags a:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(225,75,59,0.12);
  transform: translateY(-2px);
}
.category-tags a i { color: var(--primary); }

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  border-top: 2px solid var(--primary);
  padding: 64px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.footer-col ul {
  display: grid;
  gap: 10px;
}
.footer-col ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}
.footer-contact i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom .domain {
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .page-hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-panel { max-width: 480px; }
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .content-grid { grid-template-columns: 1fr; }
  .content-card-wide { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  .site-header { position: sticky; }
  .header-inner { height: 64px; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--dark-2);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 4px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    z-index: 999;
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav a {
    padding: 14px 16px;
    font-size: 1rem;
    border-left: 3px solid transparent;
    border-radius: 0;
  }
  .main-nav a.active {
    background: rgba(225,75,59,0.08);
    border-left-color: var(--accent);
  }
  .main-nav a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn-primary.sm-hidden { display: none; }

  .page-hero { padding: 56px 0 56px; }
  .page-hero h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .page-hero h1 .highlight { white-space: normal; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 32px; }
  .about-data { grid-template-columns: 1fr 1fr; }
  .timeline::before { left: 10px; }
  .timeline-item { padding-left: 40px; }
  .timeline-item::before { left: 4px; width: 12px; height: 12px; }
  .cta-section { padding: 64px 0; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { font-size: 0.8rem; }
  .scenario-card { padding: 20px; }
  .card-body { padding: 20px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-main { font-size: 0.95rem; }
  .logo-sub { font-size: 0.7rem; }
  .about-data { grid-template-columns: 1fr; }
  .about-data .data-card:nth-child(3) { grid-column: auto; }
  .cta-actions .btn-primary, .cta-actions .btn-outline-light { width: 100%; }
  .timeline-content { padding: 16px 18px; }
}